This prospective case-control study aimed to assess the prevalence of hyperhomocysteinemia and explore its potential correlation with microangiopathic complications, specifically nephropathy and neuropathy, in a cohor...This prospective case-control study aimed to assess the prevalence of hyperhomocysteinemia and explore its potential correlation with microangiopathic complications, specifically nephropathy and neuropathy, in a cohort of both type 1 and type 2 diabetic patients. Conducted at the Marc Sankalé Center of Abass Ndao Hospital in Dakar from June to September 2018, the study enrolled a total of 106 diabetic patients, comprising 93 type 2 diabetics and 13 type 1 diabetics, who were matched with control subjects free from clinically detectable pathologies, based on sex and age ± 2 years. The mean age of type 1 and type 2 diabetic patients was 24.46 ± 8.41 years and 57.28 ± 11.28 years, respectively. Our findings revealed a statistically significant elevation in mean homocysteine levels among patients when compared to controls (12.63 vs. 9.88;p < 0.0001). Hyperhomocysteinemia was observed in 24.5% of the patients, exclusively among those with type 2 diabetes. Within the hyperhomocysteinemia subgroup, 58% were male, and 42% were female. The analysis of neuropathy and nephropathy frequencies among type 2 diabetic patients, stratified by homocysteine concentrations, demonstrated a notably higher prevalence of diabetic nephropathy in patients with hyperhomocysteinemia compared to those with normohomocysteinemia (23.07% vs. 8.75%;p = 0.052). Similarly, diabetic neuropathy exhibited a significantly greater frequency in patients with hyperhomocysteinemia as opposed to normohomocysteinemia (80.76% vs. 50%;p = 0.005). Furthermore, our results established a significant positive correlation between homocysteine concentrations and both age (r = 0.402;p < 0.0001) and creatinine levels (r = 0.461;p < 0.0001). Bivariate logistic regression analysis indicated that patients with hyperhomocysteinemia faced 3 times and 6 times higher risks of developing neuropathy (OR = 3.5;p = 0.061) and diabetic nephropathy (OR = 6.092;p = 0.014), respectively.展开更多
Background: Type 2 diabetes (T2D) remains a major global public health problem. This complex metabolic disorder can lead to various complications, including cardiovascular diseases (leading cause of death) in T2D. Amo...Background: Type 2 diabetes (T2D) remains a major global public health problem. This complex metabolic disorder can lead to various complications, including cardiovascular diseases (leading cause of death) in T2D. Among the biochemical markers associated with increased risk for cardiovascular disease, homocysteine is currently one of the predictive markers under evaluation. We investigate the link between hyperhomocysteinemia and diabetes complications in DT2 population in Brazzaville. Methodology: We conducted a cross-sectional analytical study, from October to December 2022. One hundred and fifty participants were included, 100 patients T2D (34 with complications, 33 with comorbidities, 33 without), and 50 patients controls. Sociodemographic and clinical characteristics were collected. Homocysteine (Hcy) serum levels were measured using Sandwich ELISA method. Results: Study population was composed of 50% males and 50% females with sex ratio of 1;mean age was 52.2 ± 10.8 years (30 - 83). The prevalence of hyperhomocysteinemia (HHcy) was 36% (20% moderate Hcy, 15% intermediate and 1% severe). Mean Hcy concentration was 31.9 μmol/l (18 - 103). Age, gender and physical inactivity were strongly correlated to Hcy (OR of 3.5;9.4 and 3 respectively). Multivariate analysis showed that HHcy was a risk accelerator for degenerative complications (stroke: OR = 6.2;ischemic heart disease: 4.9;neuropathy: 9.2;retinopathy: 4.5 and peripheral arterial disease: 4.9). Conclusion: These findings suggest that hyperhomocysteinemia can be considered as a predictive marker to be taken into account in targeting cardiovascular risk in Congolese subjects with T2D.展开更多
Homocysteine is an amino acid generated metabolically by the S-adenosylmethionine-dependent transmethylation pathway. In addition to being a well-known independent risk factor for coronary heart disease, is also a ris...Homocysteine is an amino acid generated metabolically by the S-adenosylmethionine-dependent transmethylation pathway. In addition to being a well-known independent risk factor for coronary heart disease, is also a risk factor for cancer. Patients suffering from inflammatory bowel diseases(IBD) including ulcerative colitis and Crohn's disease are at increased risk of developing colorectal cancer in comparison to healthy individuals. Furthermore, the risk of hyperhomocysteinaemia is significantly higher in IBD patients when compared with controls. In the present article, we review the mechanisms in which hyperhomocysteinemia may contribute to increased risk of colorectal cancer in IBD patients.展开更多
Ligustrazine,an alkaloid extracted from the traditional Chinese herbal medicine Ligusticum Chuanxiong Hort,has been clinically applied to treat the cerebrovascular diseases.Hyperhomocystcincmia(Hhcy)is an independent ...Ligustrazine,an alkaloid extracted from the traditional Chinese herbal medicine Ligusticum Chuanxiong Hort,has been clinically applied to treat the cerebrovascular diseases.Hyperhomocystcincmia(Hhcy)is an independent risk factor for Alzheimer's disease(AD).Memory deficits can be caused by Hhcy via pathologies of Aβ-like tau and amyloid-β(Aβ)in the hippocampus.Here,we investigated whether homocysteine(Hey)can induce Aβ-like pathologies and the effects of ligustrazine on these pathologies.The Hey rat model was constructed by 14-day Hey injection via vena caudalis,and rats were treated with daily intragastric administration of ligustrazine at the same time.We found that the pathologies of tau and Aβ were induced by Hey in the hippocampus,while the Hcy-induced tau hyperphosphorylation and Aβ accumulation could be markedly attenuated by simultaneous ligustrazine treatment.Our data demonstrate that ligustrazine may be used as a promising neuroprotective agent to treat the Hcy-induced Aβ-like pathologies.展开更多
The relationship between hyperhomocysteinemia and coronary artery disease (CAD) was investigated and the influence of environmental factors (Folate, VitB12) and genetic factors [N5,N10 methylenetetrahydrofolate reduct...The relationship between hyperhomocysteinemia and coronary artery disease (CAD) was investigated and the influence of environmental factors (Folate, VitB12) and genetic factors [N5,N10 methylenetetrahydrofolate reductase gene (MTHFR) or MTHFR gene mutation] on plasma homocysteine (Hcy) levels and the risk of CAD observed. Fifty one CAD patients and 30 CAD free subjects were recruited in the study. The polymorphisms of MTHFR gene were analyzed by PCR RFLP and plasma total Hcy levels were measured by high performance liquid chromatography with fluorescence detection. Plasma folate and vitamin B12 concentrations were measured by an automated chemiluminescence method. It was found that mean total plasma Hcy concentrations were significantly higher in CAD patients than in CAD free subjects ( P <0.01). The differences were also apparent among the three genotypes of MTHFR gene in CAD group ( P <0.05). There was no significant difference in the genotype distributions and allele frequencies between the two groups. A strong inverse correlation was found between folate or vitamin B12 and plasma Hcy levels according to MTHFR genotype ( P <0.01). It was concluded that hyperhomocysteinemia is a new independent risk factor for CAD. However, MTHFR gene mutation alone does not relate significantly to the morbidity of CAD since hyperhomocysteinemia and its influence on the risk of CAD are decided by both environmental and genetic factors. Supplementary treatment with vitamins B can effectively lower the plasma levels of Hcy, thus maybe reduceing the risk of CAD.展开更多
Dear Editor,Combined vascular occlusions involving retinal arteries and veins have been reported in the past.Combined occlusion of the central retinal vein (CRVO)and artery (CRAO) is well described^[1].
Homocysteine is sulfur containing intermediary amino acid formed by the demethylation of dietary methionine to cysteine. The raised serum homocysteine level is one of the important risk factors associated with coronar...Homocysteine is sulfur containing intermediary amino acid formed by the demethylation of dietary methionine to cysteine. The raised serum homocysteine level is one of the important risk factors associated with coronary artery disease.</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;">We present a 23</span><span style="font-family:Verdana;">-</span><span style="font-family:Verdana;">year</span><span style="font-family:Verdana;">-</span><span style="font-family:Verdana;">old male with no other risk factors of coronary artery disease presented to us with acute anterior wall myocardial infarction and was treated with primary percutaneous coronary intervention. During the routine work up post percutaneous coronary intervention significant elevation of serum homocysteine level was seen with markedly low serum vitamin B12 level and was treated for it along with standard therapy for acute myocardial infarction.</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;">The case illustrates the need to incorporate a plasma homocysteine level during work up of coronary artery disease especially in young patients, more importantly in those without any conventional risk factors.展开更多
Introduction: Moyamoya disease (MMD) is a chronic cerebrovascular disorder characterized by progressive bilateral occlusion of the supraclinoid internal carotid artery (ICA) and its main branches, associated with the ...Introduction: Moyamoya disease (MMD) is a chronic cerebrovascular disorder characterized by progressive bilateral occlusion of the supraclinoid internal carotid artery (ICA) and its main branches, associated with the development of fine collateral networks, especially adjacent to the site of occlusion in the deep areas of the brain. MMD frequently occurs in East Asian populations, including pediatric and adult patients, and may lead to ischemic or hemorrhagic stroke, headache, epilepsy or transient ischemic attack. The majority is presumed to be of genetic origin and few cases of thrombophilia have been reported in MMD. We report a case of MMD in a young sub-Saharan African woman associated with Hyperhomocysteninemia (HHCys). Observation: A 33-year-old female was seen for aphasia, which had suddenly appeared fourteen days before, and was associated with memory impairment. She mentioned chronic headaches during the 10 previous years, of frontal seat, without migraine criteria. She had no history of hypertension, no obesity, no known dyslipidemia, and there was no family history of stroke. Neurological examination noted Wernicke’s aphasia, with discreet right central facial palsy, associated with memory impairment. The brain MRI revealed semi recent infarct in the left parietal lobe, sequelae in the left temporo-occipital and right frontal with lacunar ischemic lesions, associated with several foci of sub- cortical demyelination. MRA showed stenosis of the supraclinoid carotid arteries and their division branches. In addition, there was a stenosis of the posterior cerebral arteries, with a network of anastomosis at the level of the base of the skull. An investigation of thrombophilia showed hyperhomocysteinemia (HHCys). The diagnosis of moyamoya disease associated with hyperhomocysteinemia was mentioned. She was treated by Aspirin combined to folic acid. After a 3-year setback the patient was asymptomatic. Conclusion: MMD is a rare cause of stroke in sub-Saharan Africa. MRA should be performed whenever possible, as well as investigation for thrombophilia when it’s available. Combined antiplatelet agent with folic acid for ischemic stroke prevention is effective.展开更多
Background:The main purpose of this article is to explore the differences between mild-to-moderate acute stroke patients with hyperhomocysteine and similar patients with normal homocysteine in risk factors,cerebral ar...Background:The main purpose of this article is to explore the differences between mild-to-moderate acute stroke patients with hyperhomocysteine and similar patients with normal homocysteine in risk factors,cerebral arterial stenosis,neurological deficit,cognitive function impairment.The subjects included gender,body mass index,whether to combine hypertension,blood glucose level,blood lipid,national institutes of health stroke scale(NIHSS)score,whether to combine cerebral arterial stenosis and Montreal cognitive assessment scores.Method:Twentyseven mild-to-moderate acute stroke patients with hyperhomocysteinemia(NIHSS score≤15 points)and 34 mildto-moderate acute stroke patients without hyperhomocysteinemia were admitted in the past year as the research objects.N=27 stroke patients with hyperhomocysteine were set as the experimental group,and N=34 patients without hyperhomocysteine were set as the control group.A retrospective study of clinical data from both groups of patients was conducted.Compare the data of the 2 groups of patients with differences in the above study data,and then explore the specific impact of hyperhomocysteinemia on the above experimental indicators.Results:(1)NIHSS scores of patients in the experimental group were higher than those in the control group,and the difference was statistically significant(P<0.05).(2)The incidence of cerebrovascular stenosis(including intracranial and extracranial arteries)in the experimental group was significantly higher than that in the control group,and the difference was statistically significant(P<0.05).(3)The degree of cognitive impairment in the experimental group was significantly higher than that in the control group,with a statistically significant difference(P<0.05).(4)The proportion of male patients in the study group was significantly higher than that in the control group(P<0.05).(5)The level of homocysteine in the experimental group was positively correlated with NIHSS score(r=0.602,P<0.05)and negatively correlated with Montreal cognitive assessment score(r=−0.551,P<0.05).Conclusion:Mildto-moderate stroke patients with hyperhomocysteinemia are more likely to have severe neurological deficits,and most patients will be associated with more severe intracranial arterial and extracranial arterial stenosis.Mild-tomoderate stroke patients with high homocysteine are more likely to develop cognitive impairment.Finally,high homocysteine levels were associated with neurological impairment and cognitive impairment.Therefore,clinically,patients with acute stroke and hyperhomocysteinemia should be actively treated with hypohomocysteine,and it is recommended to improve cerebrovascular evaluation(computed tomography angiography or magnetic resonance angiography)for hospitalized patients even with hemorrhagic stroke.Stroke patients with hyperhomocysteinemia should be given more aggressive treatment(ischemic stroke patients should be given more optimized antithrombotic therapy,hemorrhagic stroke patients should be given more aggressive dehydrating cranial pressure reduction,et al.).Finally,brain protectants and cognitive function improvement therapy can be given in advance to prevent cognitive function deterioration.展开更多
Objective: To investigate the effects of donepezil combined with folic acid and vitamin B12 on the levels of serum inflammatory factors, Hcy, NSE and neurotransmitters in elderly patients with Alzheimer's disease ...Objective: To investigate the effects of donepezil combined with folic acid and vitamin B12 on the levels of serum inflammatory factors, Hcy, NSE and neurotransmitters in elderly patients with Alzheimer's disease (AD) complicated with hyperhomocysteinemia. Methods: A total of 98 elderly patients with AD complicated with hyperhomocysteinemia were randomly divided into control group (n=48) and observation group (n=50) according to the random data table method. Patients in the control group were treated with donepezil. On this basis, the patients in the observation group were treated with folic acid and vitamin B12, all patients were treated for 3 months. Before and after treatment, the levels of serum inflammatory factors (TNF-α, IL-6 and hs-CRP), Hcy, NSE and brain neurotransmitter (5-HT, NE and DA) were compared between the two groups. Results: Before treatment, the levels of TNF-α, IL-6, hs-CRP, Hcy, NSE, 5-HT, NE and DA of the control group and the observation group were not statistically significant. Compared with the group before treatment, the levels of TNF-α, IL-6, hs-CRP, Hcy and NSE in the two groups were significantly lower, and the level of the observation group was significantly lower than those of the control group, the difference was statistically significant;Compared with the group before treatment, the levels of 5-HT, NE and DA in the two groups were significantly increased, and the observation group was significantly higher than that of the control group, the difference was statistically significant. Conclusion: Donepezil combined folic acid and vitamin B12 in treatment of AD with hyperhomocysteinemia, which can effectively reduce the body's inflammatory response, reduced Hcy and NSE levels, elevated levels of brain neurotransmitters, has important clinical significance.展开更多
Objective: To investigate the effects of Ginkgo biloba extract adjuvant therapy on inflammatory reaction, adhesion molecules and antioxidant function in patients with cerebral infarction complicated with hyperhomocyst...Objective: To investigate the effects of Ginkgo biloba extract adjuvant therapy on inflammatory reaction, adhesion molecules and antioxidant function in patients with cerebral infarction complicated with hyperhomocysteinemia. Methods: A total of 114 patients with cerebral infarction complicated with hyperhomocysteinemia who were conformed to the research selection criteria were selected as the research objects, according to the random data table method they were evenly divided into the control group (n=57) and the observation group (n=57), patients in the two groups were given conventional supportive treatment, on this basis, the control group patients were given folic acid tablets and vitamin B12 treatment, the observation group was treated with Ginkgo biloba extract dripping pills on the basis of the treatment of the control group. The levels of inflammatory factors, adhesion molecules and antioxidant and antioxidant function were compared between the two groups before and after treatment (after treatment 30 d). Results: There was no significant difference in the levels of hs-CRP, WBC, ICAM-1, VCAM-1, SOD and MDA between the two groups before and after treatment;After treatment, the levels of hs-CRP, WBC, ICAM-1, VCAM-1 and MDA in the observation group were significantly lower than those in control group, all significantly lower than the levels in the same group before treatment, the difference was statistically significant. After treatment, the level of SOD in the observation group was (100.37±9.45) U/mL, which was significantly higher than that of the control group (85.04±9.49) U/mL, which was significantly higher than that before the treatment, the difference was statistically significant. Conclusion: Ginkgo biloba extract adjuvant treatment of cerebral infarction significantly with high homocysteine hyperlipidemia efficacy can effectively reduce the inflammatory response to stress, reduce the release of adhesion molecules, improve the antioxidant function of oxidation, which has an important clinical value.展开更多
Aim: We investigated the relationship between hyperhomocysteinemia, coagulation factors and acute coronary syndrome. Materials and method: The study was conducted at cardiology and hematology department of Dicle Unive...Aim: We investigated the relationship between hyperhomocysteinemia, coagulation factors and acute coronary syndrome. Materials and method: The study was conducted at cardiology and hematology department of Dicle University Medical School between January 1st 2003 and May 31st 2009. The study included 96 patients with acute coronary syn-drome and 96 controls. Results: Baseline characteristics of patients (63 males, 33 females, mean age 56.4 years) and controls (58 males and 38 females, mean age: 51.1 years) were similar. There was a statistically significant difference between two groups according to homocysteine levels (13.4 ±8.0 micromole/L vs. 12.8 ± 7.1 micromole/L p = 0.042). In this study, we found that hyperhomocysteinemia, smoking, elevated levels of CRP, low levels of HDL, positive family history, presence of hypertension, BMI > 27, low levels of protein C and protein S were associated with high risk for acute coronary syndrome. Fibrinogen level, factor V level, factor VIII level, factor IX level ,factor X level ,and factor V leiden (p = 0.128) are not risk factors for acute coronary syndrome. Conclusion: Hyperhomocysteine is a significant risk factor for acute coronary syndrome There is not relationship between coagulation factors and acute coronary syn-drome except low levels of protein C and protein S.展开更多
Deficiencies in vitamins or other factors (B6, B12, folic acid, betaine) and genetic disorders for the metabolism of the non-protein amino acid-homocysteine (Hcy) lead to hyperhomocysteinemia (HHcy). HHcy is an integr...Deficiencies in vitamins or other factors (B6, B12, folic acid, betaine) and genetic disorders for the metabolism of the non-protein amino acid-homocysteine (Hcy) lead to hyperhomocysteinemia (HHcy). HHcy is an integral component of several disorders including cardiovascular disease, neurodegeneration, diabetes and alcoholic liver disease. HHcy unleashes mediators of inflammation such as NFkB, IL-1β, IL-6, and IL-8, increases production of intracellular superoxide anion causing oxidative stress and reducing intracellular level of nitric oxide (NO), and induces endoplasmic reticulum (ER) stress which can explain many processes of Hcy-promoted cell injury such as apoptosis, fat accumulation, and inflammation. Animal models have played an important role in determining the biological effects of HHcy. ER stress may also be involved in other liver diseases such as a1-antitrypsin (a1-AT) deficiency and hepatitis C and/or B virus infection. Future research should evaluate the possible potentiative effects of alcohol and hepatic virus infection on ER stress-induced liver injury, study potentially beneficial effects of lowering Hcy and preventing ER stress in alcoholic humans, and examine polymorphism of Hcy metabolizing enzymes as potential risk-factors for the development of HHcy and liver disease.展开更多
BACKGROUND: Hyperhomocysteinemia, as an important risk factor for ischemic cerebrovascular disease is receiving increasing attention. OBJECTIVE: To analyze whether differences of gender, age, cerebrovascular disease t...BACKGROUND: Hyperhomocysteinemia, as an important risk factor for ischemic cerebrovascular disease is receiving increasing attention. OBJECTIVE: To analyze whether differences of gender, age, cerebrovascular disease typing, and disease conditions exist when ischemic cerebrovascular disease occurs together with hyperhomocysteinemia. DESIGN: A controlled observation. SETTING: Department of Neurology, Tianjin Huanhu Hospital. PARTICIPANTS: A total of 601 acute ischemic cerebrovascular disease inpatients, comprising 386 males and 215 females, aged 33-90 years old, were admitted to the Department of Stroke, Tianjin Huanhu Hospital between August 2005 and April 2007, and were recruited for this study. All included patients consisted of 342 aged patients (≥ 60 years old) and 92 middle-aged and young patients (< 60 years old). Among these patients, 48 suffered from transient cerebral ischemic attack, 138 from lacunar cerebral infarction, 273 from atherosclerotic stroke, 38 from cardiogenic cerebral infarction, 44 from agnogenic ischemic stroke, and 6 from other factor-induced ischemic strokes. All included inpatients corresponded to the diagnosis criteria of acute ischemic cerebrovascular disease, formulated in the 4th National Working Conference of Cerebrovascular Disease, and were confirmed as acute ischemic cerebral infarction by CT and/or MRI examinations. Informed consents of laboratory measurements were obtained from all subjects, and this study was approved by the Hospital’s Ethics Committee. METHODS: Following admission, 2 mL venous blood was collected from each fasting patient on the third morning. Plasma homocysteine level was measured by an enzymatic cycling assay with a CX5 reader (Beckman, USA). Plasma homocysteine levels ≥ 16 μmol/L were defined as hyperhomocysteinemia. Clinical neurological function deficit scoring was also performed for each ischemic stroke patient using Chinese stroke scales. Scores ranged from 0-45 (0-15: mild neurological function deficits, 16-30: moderate neurological deficits, and 31-45: severe neurological deficits). The scores positively correlated with severity of stroke. MAIN OUTCOME MEASURES: Incidence of ischemic cerebrovascular disease patients complicated by hyperhomocysteinemia and the effects of patient age and gender; plasma homocysteine levels of each type of ischemic cerebrovascular disease; and effects of ischemic cerebrovascular disease conditions on plasma homocysteine levels. RESULTS: All 601 inpatients with acute ischemic cerebrovascular disease were included in the final analysis. The detection rate of homocysteine was significantly higher in aged patients than in middle-aged and young patients (χ2 = 5.353 0, P < 0.05). The incidence of hyperhomocysteinemia was significantly higher in male patients than in female patients (χ2 = 9.484 4, P < 0.05). There was no significant difference in the incidence of hyperhomocysteinemia among various types of ischemic cerebrovascular diseases (P > 0.05). No significant difference in incidence of hyperhomocysteinemia existed between mild, moderate, and severe cerebrovascular disease patients (P > 0.05). CONCLUSION: There is a greater chance of ischemic cerebrovascular disease complicated by hyperhomocysteinemia in older, male patients.展开更多
Folic acid participates in the metabolism of homocysteine and lowers plasma homocysteine levels directly or indirectly.To establish a hyperhomocysteinemic pregnant rat model,2 mL of DL-homocysteine was administered da...Folic acid participates in the metabolism of homocysteine and lowers plasma homocysteine levels directly or indirectly.To establish a hyperhomocysteinemic pregnant rat model,2 mL of DL-homocysteine was administered daily by intraperitoneal injection at a dose of 200 mg/kg from day 10 to day 19 of gestation.Folic acid was administered by intragastric administration at a dose of 20 mg/kg during the period of preeclampsia induction.Results showed that systolic blood pressure,proteinuria/creatinine ratio,and plasma homocysteine levels in the hyperhomocys-teinemic pregnant rats increased significantly,and that body weight and brain weight of rat pups significantly decreased.Folic acid supplementation markedly reversed the above-mentioned abnormal changes of hyperhomocysteinemic pregnant rats and rat pups.These findings suggest that folic acid can alleviate the symptoms of hyperhomocysteinemia-induced preeclampsia in pregnant rats without influencing brain development of rat pups.展开更多
TO THE EDITOR
A 79-year-old man was hospitalized because of worsening upper abdominal pain which started two days before admission and was continuously present. His personal and family historywas uneventful, he did no...TO THE EDITOR
A 79-year-old man was hospitalized because of worsening upper abdominal pain which started two days before admission and was continuously present. His personal and family historywas uneventful, he did not smoke and denied toxic habits or using any medications, including over the-counter medications, herbal remedies or any vitamin supplements.展开更多
AIM: To study the prevalence and clinical significance of hyperhomocysteinemia (hHcys), an independent factor for arterial and venous thrombosis, in a group of patients with ulcerative colitis (UC).METHODS: Fasting ho...AIM: To study the prevalence and clinical significance of hyperhomocysteinemia (hHcys), an independent factor for arterial and venous thrombosis, in a group of patients with ulcerative colitis (UC).METHODS: Fasting homocysteine (Hcys), folate, and vitamin B12 serum levels were measured in 40 UC patients and 50 healthy controls. Clinical data regarding UC were gathered.RESULTS: Median serum Hcys levels in UC patients were similar to those in controls (12.26 μmol/L vs 12.32 μmol/L), but the prevalence of hHcys was higher in UC patients than in controls (30% vs 10%, P= 0.028). UC significantly increased the risk of hHcys (adjusted odds ratio: 4.125;95% CI: 1.26-13.44). Multivariate regression analysis showed that male sex, folate and vitamin B12 deficiency or lower serum values were significant independent predictors of higher Hcys levels in UC patients (r2 = 0.4; P＜0.001).CONCLUSION: hHcys is common in UC patients and it is related to folate and vitamin B12 deficiency or lower serum values. It would be reasonable for patients with UC to receive folate and vitamin B complex supplements as a prophylactic measure.展开更多
AIM:To investigate whether this might be related to the presence of hyperhomocysteinemia.RESULTS:Hyperhomocysteinemia was evident in 32 patients(19.3%),although most of them had moderate levels(mean value 25 mcg/ml;ra...AIM:To investigate whether this might be related to the presence of hyperhomocysteinemia.RESULTS:Hyperhomocysteinemia was evident in 32 patients(19.3%),although most of them had moderate levels(mean value 25 mcg/ml;range 15-30).Only one patient had a history of myocardial infarction(heterozygosis for N5-N10-metil tetrahydrofolate reductase mutation).CONCLUSION:The systematic assessment of hyperhomocysteinemia seems,at present,unjustified in CD patients.展开更多
文摘This prospective case-control study aimed to assess the prevalence of hyperhomocysteinemia and explore its potential correlation with microangiopathic complications, specifically nephropathy and neuropathy, in a cohort of both type 1 and type 2 diabetic patients. Conducted at the Marc Sankalé Center of Abass Ndao Hospital in Dakar from June to September 2018, the study enrolled a total of 106 diabetic patients, comprising 93 type 2 diabetics and 13 type 1 diabetics, who were matched with control subjects free from clinically detectable pathologies, based on sex and age ± 2 years. The mean age of type 1 and type 2 diabetic patients was 24.46 ± 8.41 years and 57.28 ± 11.28 years, respectively. Our findings revealed a statistically significant elevation in mean homocysteine levels among patients when compared to controls (12.63 vs. 9.88;p < 0.0001). Hyperhomocysteinemia was observed in 24.5% of the patients, exclusively among those with type 2 diabetes. Within the hyperhomocysteinemia subgroup, 58% were male, and 42% were female. The analysis of neuropathy and nephropathy frequencies among type 2 diabetic patients, stratified by homocysteine concentrations, demonstrated a notably higher prevalence of diabetic nephropathy in patients with hyperhomocysteinemia compared to those with normohomocysteinemia (23.07% vs. 8.75%;p = 0.052). Similarly, diabetic neuropathy exhibited a significantly greater frequency in patients with hyperhomocysteinemia as opposed to normohomocysteinemia (80.76% vs. 50%;p = 0.005). Furthermore, our results established a significant positive correlation between homocysteine concentrations and both age (r = 0.402;p < 0.0001) and creatinine levels (r = 0.461;p < 0.0001). Bivariate logistic regression analysis indicated that patients with hyperhomocysteinemia faced 3 times and 6 times higher risks of developing neuropathy (OR = 3.5;p = 0.061) and diabetic nephropathy (OR = 6.092;p = 0.014), respectively.
文摘Background: Type 2 diabetes (T2D) remains a major global public health problem. This complex metabolic disorder can lead to various complications, including cardiovascular diseases (leading cause of death) in T2D. Among the biochemical markers associated with increased risk for cardiovascular disease, homocysteine is currently one of the predictive markers under evaluation. We investigate the link between hyperhomocysteinemia and diabetes complications in DT2 population in Brazzaville. Methodology: We conducted a cross-sectional analytical study, from October to December 2022. One hundred and fifty participants were included, 100 patients T2D (34 with complications, 33 with comorbidities, 33 without), and 50 patients controls. Sociodemographic and clinical characteristics were collected. Homocysteine (Hcy) serum levels were measured using Sandwich ELISA method. Results: Study population was composed of 50% males and 50% females with sex ratio of 1;mean age was 52.2 ± 10.8 years (30 - 83). The prevalence of hyperhomocysteinemia (HHcy) was 36% (20% moderate Hcy, 15% intermediate and 1% severe). Mean Hcy concentration was 31.9 μmol/l (18 - 103). Age, gender and physical inactivity were strongly correlated to Hcy (OR of 3.5;9.4 and 3 respectively). Multivariate analysis showed that HHcy was a risk accelerator for degenerative complications (stroke: OR = 6.2;ischemic heart disease: 4.9;neuropathy: 9.2;retinopathy: 4.5 and peripheral arterial disease: 4.9). Conclusion: These findings suggest that hyperhomocysteinemia can be considered as a predictive marker to be taken into account in targeting cardiovascular risk in Congolese subjects with T2D.
文摘Homocysteine is an amino acid generated metabolically by the S-adenosylmethionine-dependent transmethylation pathway. In addition to being a well-known independent risk factor for coronary heart disease, is also a risk factor for cancer. Patients suffering from inflammatory bowel diseases(IBD) including ulcerative colitis and Crohn's disease are at increased risk of developing colorectal cancer in comparison to healthy individuals. Furthermore, the risk of hyperhomocysteinaemia is significantly higher in IBD patients when compared with controls. In the present article, we review the mechanisms in which hyperhomocysteinemia may contribute to increased risk of colorectal cancer in IBD patients.
基金grants from Changzhou Sci&Tech Program(No.CJ20190063,No.CJ20200090)Young Talent Development Plan of Changzhou Health Commission(No.CZQM2020078,and No.CZQM2020063)+3 种基金China Postdoctoral Science Foundation(No.2020M670012ZX)National Natural Science Foundation of China(No.81803498)Jiangsu Planned Projects for Postdoctoral Research Funds(No.2019K157)"Mass Entrepreneurship and Innovation Plan"of Jiangsu Province(No.QT201919).
文摘Ligustrazine,an alkaloid extracted from the traditional Chinese herbal medicine Ligusticum Chuanxiong Hort,has been clinically applied to treat the cerebrovascular diseases.Hyperhomocystcincmia(Hhcy)is an independent risk factor for Alzheimer's disease(AD).Memory deficits can be caused by Hhcy via pathologies of Aβ-like tau and amyloid-β(Aβ)in the hippocampus.Here,we investigated whether homocysteine(Hey)can induce Aβ-like pathologies and the effects of ligustrazine on these pathologies.The Hey rat model was constructed by 14-day Hey injection via vena caudalis,and rats were treated with daily intragastric administration of ligustrazine at the same time.We found that the pathologies of tau and Aβ were induced by Hey in the hippocampus,while the Hcy-induced tau hyperphosphorylation and Aβ accumulation could be markedly attenuated by simultaneous ligustrazine treatment.Our data demonstrate that ligustrazine may be used as a promising neuroprotective agent to treat the Hcy-induced Aβ-like pathologies.
文摘The relationship between hyperhomocysteinemia and coronary artery disease (CAD) was investigated and the influence of environmental factors (Folate, VitB12) and genetic factors [N5,N10 methylenetetrahydrofolate reductase gene (MTHFR) or MTHFR gene mutation] on plasma homocysteine (Hcy) levels and the risk of CAD observed. Fifty one CAD patients and 30 CAD free subjects were recruited in the study. The polymorphisms of MTHFR gene were analyzed by PCR RFLP and plasma total Hcy levels were measured by high performance liquid chromatography with fluorescence detection. Plasma folate and vitamin B12 concentrations were measured by an automated chemiluminescence method. It was found that mean total plasma Hcy concentrations were significantly higher in CAD patients than in CAD free subjects ( P <0.01). The differences were also apparent among the three genotypes of MTHFR gene in CAD group ( P <0.05). There was no significant difference in the genotype distributions and allele frequencies between the two groups. A strong inverse correlation was found between folate or vitamin B12 and plasma Hcy levels according to MTHFR genotype ( P <0.01). It was concluded that hyperhomocysteinemia is a new independent risk factor for CAD. However, MTHFR gene mutation alone does not relate significantly to the morbidity of CAD since hyperhomocysteinemia and its influence on the risk of CAD are decided by both environmental and genetic factors. Supplementary treatment with vitamins B can effectively lower the plasma levels of Hcy, thus maybe reduceing the risk of CAD.
文摘Dear Editor,Combined vascular occlusions involving retinal arteries and veins have been reported in the past.Combined occlusion of the central retinal vein (CRVO)and artery (CRAO) is well described^[1].
文摘Homocysteine is sulfur containing intermediary amino acid formed by the demethylation of dietary methionine to cysteine. The raised serum homocysteine level is one of the important risk factors associated with coronary artery disease.</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;">We present a 23</span><span style="font-family:Verdana;">-</span><span style="font-family:Verdana;">year</span><span style="font-family:Verdana;">-</span><span style="font-family:Verdana;">old male with no other risk factors of coronary artery disease presented to us with acute anterior wall myocardial infarction and was treated with primary percutaneous coronary intervention. During the routine work up post percutaneous coronary intervention significant elevation of serum homocysteine level was seen with markedly low serum vitamin B12 level and was treated for it along with standard therapy for acute myocardial infarction.</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;">The case illustrates the need to incorporate a plasma homocysteine level during work up of coronary artery disease especially in young patients, more importantly in those without any conventional risk factors.
文摘Introduction: Moyamoya disease (MMD) is a chronic cerebrovascular disorder characterized by progressive bilateral occlusion of the supraclinoid internal carotid artery (ICA) and its main branches, associated with the development of fine collateral networks, especially adjacent to the site of occlusion in the deep areas of the brain. MMD frequently occurs in East Asian populations, including pediatric and adult patients, and may lead to ischemic or hemorrhagic stroke, headache, epilepsy or transient ischemic attack. The majority is presumed to be of genetic origin and few cases of thrombophilia have been reported in MMD. We report a case of MMD in a young sub-Saharan African woman associated with Hyperhomocysteninemia (HHCys). Observation: A 33-year-old female was seen for aphasia, which had suddenly appeared fourteen days before, and was associated with memory impairment. She mentioned chronic headaches during the 10 previous years, of frontal seat, without migraine criteria. She had no history of hypertension, no obesity, no known dyslipidemia, and there was no family history of stroke. Neurological examination noted Wernicke’s aphasia, with discreet right central facial palsy, associated with memory impairment. The brain MRI revealed semi recent infarct in the left parietal lobe, sequelae in the left temporo-occipital and right frontal with lacunar ischemic lesions, associated with several foci of sub- cortical demyelination. MRA showed stenosis of the supraclinoid carotid arteries and their division branches. In addition, there was a stenosis of the posterior cerebral arteries, with a network of anastomosis at the level of the base of the skull. An investigation of thrombophilia showed hyperhomocysteinemia (HHCys). The diagnosis of moyamoya disease associated with hyperhomocysteinemia was mentioned. She was treated by Aspirin combined to folic acid. After a 3-year setback the patient was asymptomatic. Conclusion: MMD is a rare cause of stroke in sub-Saharan Africa. MRA should be performed whenever possible, as well as investigation for thrombophilia when it’s available. Combined antiplatelet agent with folic acid for ischemic stroke prevention is effective.
文摘Background:The main purpose of this article is to explore the differences between mild-to-moderate acute stroke patients with hyperhomocysteine and similar patients with normal homocysteine in risk factors,cerebral arterial stenosis,neurological deficit,cognitive function impairment.The subjects included gender,body mass index,whether to combine hypertension,blood glucose level,blood lipid,national institutes of health stroke scale(NIHSS)score,whether to combine cerebral arterial stenosis and Montreal cognitive assessment scores.Method:Twentyseven mild-to-moderate acute stroke patients with hyperhomocysteinemia(NIHSS score≤15 points)and 34 mildto-moderate acute stroke patients without hyperhomocysteinemia were admitted in the past year as the research objects.N=27 stroke patients with hyperhomocysteine were set as the experimental group,and N=34 patients without hyperhomocysteine were set as the control group.A retrospective study of clinical data from both groups of patients was conducted.Compare the data of the 2 groups of patients with differences in the above study data,and then explore the specific impact of hyperhomocysteinemia on the above experimental indicators.Results:(1)NIHSS scores of patients in the experimental group were higher than those in the control group,and the difference was statistically significant(P<0.05).(2)The incidence of cerebrovascular stenosis(including intracranial and extracranial arteries)in the experimental group was significantly higher than that in the control group,and the difference was statistically significant(P<0.05).(3)The degree of cognitive impairment in the experimental group was significantly higher than that in the control group,with a statistically significant difference(P<0.05).(4)The proportion of male patients in the study group was significantly higher than that in the control group(P<0.05).(5)The level of homocysteine in the experimental group was positively correlated with NIHSS score(r=0.602,P<0.05)and negatively correlated with Montreal cognitive assessment score(r=−0.551,P<0.05).Conclusion:Mildto-moderate stroke patients with hyperhomocysteinemia are more likely to have severe neurological deficits,and most patients will be associated with more severe intracranial arterial and extracranial arterial stenosis.Mild-tomoderate stroke patients with high homocysteine are more likely to develop cognitive impairment.Finally,high homocysteine levels were associated with neurological impairment and cognitive impairment.Therefore,clinically,patients with acute stroke and hyperhomocysteinemia should be actively treated with hypohomocysteine,and it is recommended to improve cerebrovascular evaluation(computed tomography angiography or magnetic resonance angiography)for hospitalized patients even with hemorrhagic stroke.Stroke patients with hyperhomocysteinemia should be given more aggressive treatment(ischemic stroke patients should be given more optimized antithrombotic therapy,hemorrhagic stroke patients should be given more aggressive dehydrating cranial pressure reduction,et al.).Finally,brain protectants and cognitive function improvement therapy can be given in advance to prevent cognitive function deterioration.
文摘Objective: To investigate the effects of donepezil combined with folic acid and vitamin B12 on the levels of serum inflammatory factors, Hcy, NSE and neurotransmitters in elderly patients with Alzheimer's disease (AD) complicated with hyperhomocysteinemia. Methods: A total of 98 elderly patients with AD complicated with hyperhomocysteinemia were randomly divided into control group (n=48) and observation group (n=50) according to the random data table method. Patients in the control group were treated with donepezil. On this basis, the patients in the observation group were treated with folic acid and vitamin B12, all patients were treated for 3 months. Before and after treatment, the levels of serum inflammatory factors (TNF-α, IL-6 and hs-CRP), Hcy, NSE and brain neurotransmitter (5-HT, NE and DA) were compared between the two groups. Results: Before treatment, the levels of TNF-α, IL-6, hs-CRP, Hcy, NSE, 5-HT, NE and DA of the control group and the observation group were not statistically significant. Compared with the group before treatment, the levels of TNF-α, IL-6, hs-CRP, Hcy and NSE in the two groups were significantly lower, and the level of the observation group was significantly lower than those of the control group, the difference was statistically significant;Compared with the group before treatment, the levels of 5-HT, NE and DA in the two groups were significantly increased, and the observation group was significantly higher than that of the control group, the difference was statistically significant. Conclusion: Donepezil combined folic acid and vitamin B12 in treatment of AD with hyperhomocysteinemia, which can effectively reduce the body's inflammatory response, reduced Hcy and NSE levels, elevated levels of brain neurotransmitters, has important clinical significance.
文摘Objective: To investigate the effects of Ginkgo biloba extract adjuvant therapy on inflammatory reaction, adhesion molecules and antioxidant function in patients with cerebral infarction complicated with hyperhomocysteinemia. Methods: A total of 114 patients with cerebral infarction complicated with hyperhomocysteinemia who were conformed to the research selection criteria were selected as the research objects, according to the random data table method they were evenly divided into the control group (n=57) and the observation group (n=57), patients in the two groups were given conventional supportive treatment, on this basis, the control group patients were given folic acid tablets and vitamin B12 treatment, the observation group was treated with Ginkgo biloba extract dripping pills on the basis of the treatment of the control group. The levels of inflammatory factors, adhesion molecules and antioxidant and antioxidant function were compared between the two groups before and after treatment (after treatment 30 d). Results: There was no significant difference in the levels of hs-CRP, WBC, ICAM-1, VCAM-1, SOD and MDA between the two groups before and after treatment;After treatment, the levels of hs-CRP, WBC, ICAM-1, VCAM-1 and MDA in the observation group were significantly lower than those in control group, all significantly lower than the levels in the same group before treatment, the difference was statistically significant. After treatment, the level of SOD in the observation group was (100.37±9.45) U/mL, which was significantly higher than that of the control group (85.04±9.49) U/mL, which was significantly higher than that before the treatment, the difference was statistically significant. Conclusion: Ginkgo biloba extract adjuvant treatment of cerebral infarction significantly with high homocysteine hyperlipidemia efficacy can effectively reduce the inflammatory response to stress, reduce the release of adhesion molecules, improve the antioxidant function of oxidation, which has an important clinical value.
文摘Aim: We investigated the relationship between hyperhomocysteinemia, coagulation factors and acute coronary syndrome. Materials and method: The study was conducted at cardiology and hematology department of Dicle University Medical School between January 1st 2003 and May 31st 2009. The study included 96 patients with acute coronary syn-drome and 96 controls. Results: Baseline characteristics of patients (63 males, 33 females, mean age 56.4 years) and controls (58 males and 38 females, mean age: 51.1 years) were similar. There was a statistically significant difference between two groups according to homocysteine levels (13.4 ±8.0 micromole/L vs. 12.8 ± 7.1 micromole/L p = 0.042). In this study, we found that hyperhomocysteinemia, smoking, elevated levels of CRP, low levels of HDL, positive family history, presence of hypertension, BMI > 27, low levels of protein C and protein S were associated with high risk for acute coronary syndrome. Fibrinogen level, factor V level, factor VIII level, factor IX level ,factor X level ,and factor V leiden (p = 0.128) are not risk factors for acute coronary syndrome. Conclusion: Hyperhomocysteine is a significant risk factor for acute coronary syndrome There is not relationship between coagulation factors and acute coronary syn-drome except low levels of protein C and protein S.
基金Supported by the U.S.National Institute of Alcohol Abuse and Alcoholism,R01 AA014428 and by the Robert E.and May R.Wright Foundation,No.263
文摘Deficiencies in vitamins or other factors (B6, B12, folic acid, betaine) and genetic disorders for the metabolism of the non-protein amino acid-homocysteine (Hcy) lead to hyperhomocysteinemia (HHcy). HHcy is an integral component of several disorders including cardiovascular disease, neurodegeneration, diabetes and alcoholic liver disease. HHcy unleashes mediators of inflammation such as NFkB, IL-1β, IL-6, and IL-8, increases production of intracellular superoxide anion causing oxidative stress and reducing intracellular level of nitric oxide (NO), and induces endoplasmic reticulum (ER) stress which can explain many processes of Hcy-promoted cell injury such as apoptosis, fat accumulation, and inflammation. Animal models have played an important role in determining the biological effects of HHcy. ER stress may also be involved in other liver diseases such as a1-antitrypsin (a1-AT) deficiency and hepatitis C and/or B virus infection. Future research should evaluate the possible potentiative effects of alcohol and hepatic virus infection on ER stress-induced liver injury, study potentially beneficial effects of lowering Hcy and preventing ER stress in alcoholic humans, and examine polymorphism of Hcy metabolizing enzymes as potential risk-factors for the development of HHcy and liver disease.
文摘BACKGROUND: Hyperhomocysteinemia, as an important risk factor for ischemic cerebrovascular disease is receiving increasing attention. OBJECTIVE: To analyze whether differences of gender, age, cerebrovascular disease typing, and disease conditions exist when ischemic cerebrovascular disease occurs together with hyperhomocysteinemia. DESIGN: A controlled observation. SETTING: Department of Neurology, Tianjin Huanhu Hospital. PARTICIPANTS: A total of 601 acute ischemic cerebrovascular disease inpatients, comprising 386 males and 215 females, aged 33-90 years old, were admitted to the Department of Stroke, Tianjin Huanhu Hospital between August 2005 and April 2007, and were recruited for this study. All included patients consisted of 342 aged patients (≥ 60 years old) and 92 middle-aged and young patients (< 60 years old). Among these patients, 48 suffered from transient cerebral ischemic attack, 138 from lacunar cerebral infarction, 273 from atherosclerotic stroke, 38 from cardiogenic cerebral infarction, 44 from agnogenic ischemic stroke, and 6 from other factor-induced ischemic strokes. All included inpatients corresponded to the diagnosis criteria of acute ischemic cerebrovascular disease, formulated in the 4th National Working Conference of Cerebrovascular Disease, and were confirmed as acute ischemic cerebral infarction by CT and/or MRI examinations. Informed consents of laboratory measurements were obtained from all subjects, and this study was approved by the Hospital’s Ethics Committee. METHODS: Following admission, 2 mL venous blood was collected from each fasting patient on the third morning. Plasma homocysteine level was measured by an enzymatic cycling assay with a CX5 reader (Beckman, USA). Plasma homocysteine levels ≥ 16 μmol/L were defined as hyperhomocysteinemia. Clinical neurological function deficit scoring was also performed for each ischemic stroke patient using Chinese stroke scales. Scores ranged from 0-45 (0-15: mild neurological function deficits, 16-30: moderate neurological deficits, and 31-45: severe neurological deficits). The scores positively correlated with severity of stroke. MAIN OUTCOME MEASURES: Incidence of ischemic cerebrovascular disease patients complicated by hyperhomocysteinemia and the effects of patient age and gender; plasma homocysteine levels of each type of ischemic cerebrovascular disease; and effects of ischemic cerebrovascular disease conditions on plasma homocysteine levels. RESULTS: All 601 inpatients with acute ischemic cerebrovascular disease were included in the final analysis. The detection rate of homocysteine was significantly higher in aged patients than in middle-aged and young patients (χ2 = 5.353 0, P < 0.05). The incidence of hyperhomocysteinemia was significantly higher in male patients than in female patients (χ2 = 9.484 4, P < 0.05). There was no significant difference in the incidence of hyperhomocysteinemia among various types of ischemic cerebrovascular diseases (P > 0.05). No significant difference in incidence of hyperhomocysteinemia existed between mild, moderate, and severe cerebrovascular disease patients (P > 0.05). CONCLUSION: There is a greater chance of ischemic cerebrovascular disease complicated by hyperhomocysteinemia in older, male patients.
基金The Medical Science and Technology Foundation of Chinese PLA during Twelfth "Five-year" Development Period(General Program),No. CWS11J003
文摘Folic acid participates in the metabolism of homocysteine and lowers plasma homocysteine levels directly or indirectly.To establish a hyperhomocysteinemic pregnant rat model,2 mL of DL-homocysteine was administered daily by intraperitoneal injection at a dose of 200 mg/kg from day 10 to day 19 of gestation.Folic acid was administered by intragastric administration at a dose of 20 mg/kg during the period of preeclampsia induction.Results showed that systolic blood pressure,proteinuria/creatinine ratio,and plasma homocysteine levels in the hyperhomocys-teinemic pregnant rats increased significantly,and that body weight and brain weight of rat pups significantly decreased.Folic acid supplementation markedly reversed the above-mentioned abnormal changes of hyperhomocysteinemic pregnant rats and rat pups.These findings suggest that folic acid can alleviate the symptoms of hyperhomocysteinemia-induced preeclampsia in pregnant rats without influencing brain development of rat pups.
文摘TO THE EDITOR
A 79-year-old man was hospitalized because of worsening upper abdominal pain which started two days before admission and was continuously present. His personal and family historywas uneventful, he did not smoke and denied toxic habits or using any medications, including over the-counter medications, herbal remedies or any vitamin supplements.
文摘AIM: To study the prevalence and clinical significance of hyperhomocysteinemia (hHcys), an independent factor for arterial and venous thrombosis, in a group of patients with ulcerative colitis (UC).METHODS: Fasting homocysteine (Hcys), folate, and vitamin B12 serum levels were measured in 40 UC patients and 50 healthy controls. Clinical data regarding UC were gathered.RESULTS: Median serum Hcys levels in UC patients were similar to those in controls (12.26 μmol/L vs 12.32 μmol/L), but the prevalence of hHcys was higher in UC patients than in controls (30% vs 10%, P= 0.028). UC significantly increased the risk of hHcys (adjusted odds ratio: 4.125;95% CI: 1.26-13.44). Multivariate regression analysis showed that male sex, folate and vitamin B12 deficiency or lower serum values were significant independent predictors of higher Hcys levels in UC patients (r2 = 0.4; P＜0.001).CONCLUSION: hHcys is common in UC patients and it is related to folate and vitamin B12 deficiency or lower serum values. It would be reasonable for patients with UC to receive folate and vitamin B complex supplements as a prophylactic measure.
文摘AIM:To investigate whether this might be related to the presence of hyperhomocysteinemia.RESULTS:Hyperhomocysteinemia was evident in 32 patients(19.3%),although most of them had moderate levels(mean value 25 mcg/ml;range 15-30).Only one patient had a history of myocardial infarction(heterozygosis for N5-N10-metil tetrahydrofolate reductase mutation).CONCLUSION:The systematic assessment of hyperhomocysteinemia seems,at present,unjustified in CD patients.
