Background: Cytokines are mediators of disease. Expression levels in the blood could be of clinical relevance. Objective: Aim of this study was to show if serum levels of IL-1β could be of any clinical relevance conc...Background: Cytokines are mediators of disease. Expression levels in the blood could be of clinical relevance. Objective: Aim of this study was to show if serum levels of IL-1β could be of any clinical relevance concerning dogs. IL-1β was measured in serum samples of healthy dogs to find a reference range for healthy individuals. Measurements of IL-1β should show if this substance was a possible marker for early stages of inflammation. Therefore, a possible relation between serum levels and grades of leukocytosis was analyzed. Methods: IL-1β concentrations in the blood were assessed by the use of a human enzyme linked immunosorbent assay (ELISA). 39 dogs with different inflammatory diseases were analyzed to figure out if there was a correlation between IL-1β serum levels and the number of leukocytes in peripheral blood. The control group consisted of 16 healthy dogs. Results: about half of the samples IL-1β were detected. Most of the patients showed no detectable amounts of IL-1β. The IL-1β levels measured in the serum were stable for at least nine weeks when stored at ?20?C. The patients tested positively on IL-1β had mostly lower-grade leukocytosis compared to those who had no IL-1β in serum. All the dogs which were suffering from disease but still had no traceable IL-1β, showed a leukocytosis as a common symptom. Conclusion: This study showed that IL-1β could become an interesting marker for the detection of early stages of inflammation when leukocytosis does not yet appear in peripheral blood. Nonetheless, the possible use in diagnosis is restricted. This is due to the fact that there are only low amounts of IL-1β to be detected in the serum, even concerning patients are suffering from disease.展开更多
AIM:To examine the effect of interleukin-l-beta (IL-1β)promoter region C-511T and IL-1 receptor antagonist(IL-1RN) polymorphism among the patients with chronichepatitis B virus (HBV) infection (HCC and non-HCC).METHO...AIM:To examine the effect of interleukin-l-beta (IL-1β)promoter region C-511T and IL-1 receptor antagonist(IL-1RN) polymorphism among the patients with chronichepatitis B virus (HBV) infection (HCC and non-HCC).METHODS:Genomic DNA from 136 Thai patients withchronic HBV infection (HCC=46 and non-HCC=90) and152 healthy individuals was genotyped for IL-1β genepolymorphism (-511) using polymerase chain reactionwith sequence specific primers (PCR-SSP).The variablenumber of tandem repeats (VNTR) of IL-1RN gene wasassessed by a PCR-based assay.The association betweenthese genes and status of the disease was evaluated byX^2 test.RESULTS:IL-1B-511 genotype C/C was found tobe significantly different in patients with HCC whencompared with healthy individuals (P=0.036,OR=2.29,95%CI=1.05-4.97) and patients without HCC (P=0.036,OR=2.52,95%CI=1.05-6.04).Analysis of allelefrequencies of IL-1B-511 showed that IL-1B-511 Callele was also significantly increased in patients withHCC,compared to that in healthy control (P=0.033,OR=1.72,95%CI=1.04-2.84).However,no significantassociation in IL-1RN gene was found between the twogroups.CONCLUSION:IL-1B-511C allele,which may beassociated with high IL-1B production in the liver,is agenetic marker for the development of HCC in chronic hepatitis B patients in Thai population.展开更多
Summary: To explore the mechanism of interleukin-1beta ( IL-1β) in the onset of seizure and the effect of IL-1β on the expression of adenylyl cyclase (AC) in rats with seizure induced by L-glutamate. Experimental ra...Summary: To explore the mechanism of interleukin-1beta ( IL-1β) in the onset of seizure and the effect of IL-1β on the expression of adenylyl cyclase (AC) in rats with seizure induced by L-glutamate. Experimental rats were first injected with IL-1β and then L-glutamate (a dose under the threshold) was injected into the right lateral ventricle. The rats were sacrificed 4 h after the onset of epileptic activity and examined for changes in behavior, immunohistochemistry and compared with those with seizure induced by L-glutamate alone. It was found that the expression of AC in hippocampal and neocortex of rats with seizure induced by IL-1β and L-glutamate were stronger than that of control group (P<0.05), without significant difference found between the L-glutamate group and IL-1β plus L-glutamate group in the expression of AC, the latent period and the severity of seizure. When IL-ra were given (i.c.v.) first, there was no epileptic activity and the expression of AC did not increase. There were no differences in the expression of AC of rats with IL-1ra and that of control rats. But when 2-methyl-2-(carboxycyclopropyl)glycine (MCCG) was given (i.c.v.) first, the strongest expression of AC, the shortest latent period and the the most serious seizure activities were observed. The results indicated that IL-1β could facilitate the onset of epilepsy induced by L-glutamate through IL-1R, metabotropic glutamate receptors might work with IL-1R and the increased expression of AC might be involved in the process.展开更多
文摘Background: Cytokines are mediators of disease. Expression levels in the blood could be of clinical relevance. Objective: Aim of this study was to show if serum levels of IL-1β could be of any clinical relevance concerning dogs. IL-1β was measured in serum samples of healthy dogs to find a reference range for healthy individuals. Measurements of IL-1β should show if this substance was a possible marker for early stages of inflammation. Therefore, a possible relation between serum levels and grades of leukocytosis was analyzed. Methods: IL-1β concentrations in the blood were assessed by the use of a human enzyme linked immunosorbent assay (ELISA). 39 dogs with different inflammatory diseases were analyzed to figure out if there was a correlation between IL-1β serum levels and the number of leukocytes in peripheral blood. The control group consisted of 16 healthy dogs. Results: about half of the samples IL-1β were detected. Most of the patients showed no detectable amounts of IL-1β. The IL-1β levels measured in the serum were stable for at least nine weeks when stored at ?20?C. The patients tested positively on IL-1β had mostly lower-grade leukocytosis compared to those who had no IL-1β in serum. All the dogs which were suffering from disease but still had no traceable IL-1β, showed a leukocytosis as a common symptom. Conclusion: This study showed that IL-1β could become an interesting marker for the detection of early stages of inflammation when leukocytosis does not yet appear in peripheral blood. Nonetheless, the possible use in diagnosis is restricted. This is due to the fact that there are only low amounts of IL-1β to be detected in the serum, even concerning patients are suffering from disease.
基金Supported by the Thailand Research Fund,RSA4680021
文摘AIM:To examine the effect of interleukin-l-beta (IL-1β)promoter region C-511T and IL-1 receptor antagonist(IL-1RN) polymorphism among the patients with chronichepatitis B virus (HBV) infection (HCC and non-HCC).METHODS:Genomic DNA from 136 Thai patients withchronic HBV infection (HCC=46 and non-HCC=90) and152 healthy individuals was genotyped for IL-1β genepolymorphism (-511) using polymerase chain reactionwith sequence specific primers (PCR-SSP).The variablenumber of tandem repeats (VNTR) of IL-1RN gene wasassessed by a PCR-based assay.The association betweenthese genes and status of the disease was evaluated byX^2 test.RESULTS:IL-1B-511 genotype C/C was found tobe significantly different in patients with HCC whencompared with healthy individuals (P=0.036,OR=2.29,95%CI=1.05-4.97) and patients without HCC (P=0.036,OR=2.52,95%CI=1.05-6.04).Analysis of allelefrequencies of IL-1B-511 showed that IL-1B-511 Callele was also significantly increased in patients withHCC,compared to that in healthy control (P=0.033,OR=1.72,95%CI=1.04-2.84).However,no significantassociation in IL-1RN gene was found between the twogroups.CONCLUSION:IL-1B-511C allele,which may beassociated with high IL-1B production in the liver,is agenetic marker for the development of HCC in chronic hepatitis B patients in Thai population.
文摘Summary: To explore the mechanism of interleukin-1beta ( IL-1β) in the onset of seizure and the effect of IL-1β on the expression of adenylyl cyclase (AC) in rats with seizure induced by L-glutamate. Experimental rats were first injected with IL-1β and then L-glutamate (a dose under the threshold) was injected into the right lateral ventricle. The rats were sacrificed 4 h after the onset of epileptic activity and examined for changes in behavior, immunohistochemistry and compared with those with seizure induced by L-glutamate alone. It was found that the expression of AC in hippocampal and neocortex of rats with seizure induced by IL-1β and L-glutamate were stronger than that of control group (P<0.05), without significant difference found between the L-glutamate group and IL-1β plus L-glutamate group in the expression of AC, the latent period and the severity of seizure. When IL-ra were given (i.c.v.) first, there was no epileptic activity and the expression of AC did not increase. There were no differences in the expression of AC of rats with IL-1ra and that of control rats. But when 2-methyl-2-(carboxycyclopropyl)glycine (MCCG) was given (i.c.v.) first, the strongest expression of AC, the shortest latent period and the the most serious seizure activities were observed. The results indicated that IL-1β could facilitate the onset of epilepsy induced by L-glutamate through IL-1R, metabotropic glutamate receptors might work with IL-1R and the increased expression of AC might be involved in the process.
