Annual forage legumes are important components of livestock production systems in East Texas and the southeastern US. Forage legumes contribute nitrogen (N) to cropping systems through biological N fixation, and their...Annual forage legumes are important components of livestock production systems in East Texas and the southeastern US. Forage legumes contribute nitrogen (N) to cropping systems through biological N fixation, and their seasonal biomass production can be managed to complement forage grasses. Our research objectives were to evaluate both warm- and cool-season annual forage legumes as green manure for biomass, N content, ability to enhance soil organic carbon (SOC) and soil N, and impact on post season forage grass crops. Nine warm-season forage legumes (WSL) were spring planted and incorporated as green manure in the fall. Forage rye (Secale cereale L.) was planted following the incorporation of WSL treatments. Eight cool-season forage legumes (CSL) were fall planted in previously fallow plots and incorporated as green manure in late spring. Sorghum-sudangrass (Sorghum bicolor x Sorghum bicolor var. sudanense) was planted over all treatments in early summer after forage rye harvest and incorporation of CSL treatments. Sorghum-sudangrass was harvested in June, August and September, and treatments were evaluated for dry matter and N concentration. Soil cores were taken from each plot, split into depths of 0 to 15, 15 to 30 and 30 to 60 cm, and soil C and N were measured using combustion analysis. Nylon mesh bags containing plant samples were buried at 15 cm and used to evaluate decomposition rate of above ground legume biomass, including change in C and N concentrations. Mungbean (Vigna radiata L. [Wilczek]) had the highest shoot biomass yield (6.24 t DM ha<sup>-1</sup>) and contributed the most total N (167 kg∙ha<sup>-1</sup>) and total C (3043 kg∙ha<sup>-1</sup>) of the WSL tested. Decomposition rate of WSL biomass was rapid in the first 10 weeks and very slow afterward. Winter pea (Pisum sativum L. spp. sativum), arrow leaf clover (Trifolium vesiculosum Savi.), and crimson clover (Trifolium incarnatum L.) were the most productive CSL in this trial. Austrian winter pea produced 8.41 t DM ha<sup>-1</sup> with a total N yield of 319 kg N ha<sup>-1</sup> and total C production of 3835 kg C ha<sup>-1</sup>. The WSL treatments had only small effects on rye forage yield and N concentration, possibly due to mineralization of N from a large SOC pool already in place. The CSL treatments also had only minimal effects on sorghum-sudangrass forage production. Winter pea, arrow leaf and crimson clover were productive cool season legumes and could be useful as green manure crops. Mungbean and cowpea (Vigna unguiculata [L.] Walp.) were highly productive warm season legumes but may include more production risk in green manure systems due to soil moisture competition.展开更多
BACKGROUND The scientific literature provides evidence that nutritional ketosis can be an important support in the treatment of pathologies in which inflammation is present,as recent studies have shown that ketone bod...BACKGROUND The scientific literature provides evidence that nutritional ketosis can be an important support in the treatment of pathologies in which inflammation is present,as recent studies have shown that ketone bodies have anti-inflammatory activity in numerous diseases,including rheumatic diseases.We report the case of a 22-year-old woman with class I obesity and juvenile idiopathic arthritis who started treatment with a very low calorie ketogenic diet(VLCKD).CASE SUMMARY The patient was a 22-year-old woman diagnosed with juvenile idiopathic arthritis at age 4 years and with a body mass index(BMI)of 30.8 kg/m2,waist circumference(WC)80 cm,fat mass(FM)28.1 kg,free FM 45.7 kg,and visceral adipose tissue(VAT)3.5 kg,assessed on bioimpedance analysis.She was treated using a commercial VLCKD weight-loss program(PNK®method);this program provides high-biological-value protein preparations and natural foods.Each protein preparation contains 15 g protein,4 g carbohydrate,3 g fat,and 50 mg omega-3 docosahexaenoic acid,with an energy content of 90–120 kcal.After four months on the program,the BMI was 28.6 kg/m2,WC 73 cm,FM 23.2 kg,free FM 41.9 kg,and VAT 2.9 kg.CONCLUSION VLCKD enabled the patient to reach her target weight and to reduce her joint pain and headaches.Laboratory inflammatory indices also normalized.展开更多
In the November 27,2010 issue of the World Journal of Hepatology (WJH),three case reports were published which involved patients who had consumed various dietary supplements and conventional foods generally marketed a...In the November 27,2010 issue of the World Journal of Hepatology (WJH),three case reports were published which involved patients who had consumed various dietary supplements and conventional foods generally marketed as weight loss products.The reference to Herbalife products as contaminated and generally com-parable to all dietary supplements or weight loss prod-ucts is not scientifically supported.The authors provided an insufficient amount of information regarding patient histories,concomitant medications and other com-pounds,dechallenge results,and product specifications and usage.This information is necessary to fully assess the association of Herbalife products in the WJH case reports.Therefore,the article does not objectively sup-port a causal relationship between the reported cases of liver injury and Herbalife products or ingredients.展开更多
Patients with diabetes are more susceptible to coronavirus disease 2019(COVID-19),and as a consequence,develop more severe form of disease.This is partly due to a systemic inflammatory state and pro thrombotic milieu ...Patients with diabetes are more susceptible to coronavirus disease 2019(COVID-19),and as a consequence,develop more severe form of disease.This is partly due to a systemic inflammatory state and pro thrombotic milieu seen in metabolic syndrome.In this review,we attempt to explore the pathogenetic links between insulin resistance and COVID-19 disease severity.Insulin resistance is an underlying condition for metabolic syndromes,including type 2 diabetes,which impairs insulin signaling pathways affecting metabolic and cardiovascular homeostasis.A high concentration of circulating insulin shifts the balance to mitogen activated protein kinase(MAPK)-dependent signaling and causes endothelial cell damage.The phosphatidylinositol 3 kinase and MAPK dependent signaling pathways maintain a balance between nitric oxide-dependent vasodilator and endothelin-1 dependent vasoconstriction actions of insulin.Vascular smooth muscle cell dysfunction is responsible for inflammation and blood coagulation leading to microvascular and macrovascular complications in diabetes.Hyperactivity in renin-angiotensin system is implicated in development of islet oxidative stress and subsequentβ-cell dysfunction,as it alters the islet blood flow.These deleterious effects of insulin resistance involving altered blood pressure,vascular dysfunction,and inflammation could be associated with increased severity in COVID-19 patients.We conclude that clinical and/or biochemical markers of insulin resistance should be included as prognostic markers in assessment of acute COVID-19 disease.展开更多
文摘Annual forage legumes are important components of livestock production systems in East Texas and the southeastern US. Forage legumes contribute nitrogen (N) to cropping systems through biological N fixation, and their seasonal biomass production can be managed to complement forage grasses. Our research objectives were to evaluate both warm- and cool-season annual forage legumes as green manure for biomass, N content, ability to enhance soil organic carbon (SOC) and soil N, and impact on post season forage grass crops. Nine warm-season forage legumes (WSL) were spring planted and incorporated as green manure in the fall. Forage rye (Secale cereale L.) was planted following the incorporation of WSL treatments. Eight cool-season forage legumes (CSL) were fall planted in previously fallow plots and incorporated as green manure in late spring. Sorghum-sudangrass (Sorghum bicolor x Sorghum bicolor var. sudanense) was planted over all treatments in early summer after forage rye harvest and incorporation of CSL treatments. Sorghum-sudangrass was harvested in June, August and September, and treatments were evaluated for dry matter and N concentration. Soil cores were taken from each plot, split into depths of 0 to 15, 15 to 30 and 30 to 60 cm, and soil C and N were measured using combustion analysis. Nylon mesh bags containing plant samples were buried at 15 cm and used to evaluate decomposition rate of above ground legume biomass, including change in C and N concentrations. Mungbean (Vigna radiata L. [Wilczek]) had the highest shoot biomass yield (6.24 t DM ha<sup>-1</sup>) and contributed the most total N (167 kg∙ha<sup>-1</sup>) and total C (3043 kg∙ha<sup>-1</sup>) of the WSL tested. Decomposition rate of WSL biomass was rapid in the first 10 weeks and very slow afterward. Winter pea (Pisum sativum L. spp. sativum), arrow leaf clover (Trifolium vesiculosum Savi.), and crimson clover (Trifolium incarnatum L.) were the most productive CSL in this trial. Austrian winter pea produced 8.41 t DM ha<sup>-1</sup> with a total N yield of 319 kg N ha<sup>-1</sup> and total C production of 3835 kg C ha<sup>-1</sup>. The WSL treatments had only small effects on rye forage yield and N concentration, possibly due to mineralization of N from a large SOC pool already in place. The CSL treatments also had only minimal effects on sorghum-sudangrass forage production. Winter pea, arrow leaf and crimson clover were productive cool season legumes and could be useful as green manure crops. Mungbean and cowpea (Vigna unguiculata [L.] Walp.) were highly productive warm season legumes but may include more production risk in green manure systems due to soil moisture competition.
文摘BACKGROUND The scientific literature provides evidence that nutritional ketosis can be an important support in the treatment of pathologies in which inflammation is present,as recent studies have shown that ketone bodies have anti-inflammatory activity in numerous diseases,including rheumatic diseases.We report the case of a 22-year-old woman with class I obesity and juvenile idiopathic arthritis who started treatment with a very low calorie ketogenic diet(VLCKD).CASE SUMMARY The patient was a 22-year-old woman diagnosed with juvenile idiopathic arthritis at age 4 years and with a body mass index(BMI)of 30.8 kg/m2,waist circumference(WC)80 cm,fat mass(FM)28.1 kg,free FM 45.7 kg,and visceral adipose tissue(VAT)3.5 kg,assessed on bioimpedance analysis.She was treated using a commercial VLCKD weight-loss program(PNK®method);this program provides high-biological-value protein preparations and natural foods.Each protein preparation contains 15 g protein,4 g carbohydrate,3 g fat,and 50 mg omega-3 docosahexaenoic acid,with an energy content of 90–120 kcal.After four months on the program,the BMI was 28.6 kg/m2,WC 73 cm,FM 23.2 kg,free FM 41.9 kg,and VAT 2.9 kg.CONCLUSION VLCKD enabled the patient to reach her target weight and to reduce her joint pain and headaches.Laboratory inflammatory indices also normalized.
文摘In the November 27,2010 issue of the World Journal of Hepatology (WJH),three case reports were published which involved patients who had consumed various dietary supplements and conventional foods generally marketed as weight loss products.The reference to Herbalife products as contaminated and generally com-parable to all dietary supplements or weight loss prod-ucts is not scientifically supported.The authors provided an insufficient amount of information regarding patient histories,concomitant medications and other com-pounds,dechallenge results,and product specifications and usage.This information is necessary to fully assess the association of Herbalife products in the WJH case reports.Therefore,the article does not objectively sup-port a causal relationship between the reported cases of liver injury and Herbalife products or ingredients.
文摘Patients with diabetes are more susceptible to coronavirus disease 2019(COVID-19),and as a consequence,develop more severe form of disease.This is partly due to a systemic inflammatory state and pro thrombotic milieu seen in metabolic syndrome.In this review,we attempt to explore the pathogenetic links between insulin resistance and COVID-19 disease severity.Insulin resistance is an underlying condition for metabolic syndromes,including type 2 diabetes,which impairs insulin signaling pathways affecting metabolic and cardiovascular homeostasis.A high concentration of circulating insulin shifts the balance to mitogen activated protein kinase(MAPK)-dependent signaling and causes endothelial cell damage.The phosphatidylinositol 3 kinase and MAPK dependent signaling pathways maintain a balance between nitric oxide-dependent vasodilator and endothelin-1 dependent vasoconstriction actions of insulin.Vascular smooth muscle cell dysfunction is responsible for inflammation and blood coagulation leading to microvascular and macrovascular complications in diabetes.Hyperactivity in renin-angiotensin system is implicated in development of islet oxidative stress and subsequentβ-cell dysfunction,as it alters the islet blood flow.These deleterious effects of insulin resistance involving altered blood pressure,vascular dysfunction,and inflammation could be associated with increased severity in COVID-19 patients.We conclude that clinical and/or biochemical markers of insulin resistance should be included as prognostic markers in assessment of acute COVID-19 disease.
