Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences · 2011
[Investigation of amylin level changes among obese patients at different glucose metabolic states and effects of rosiglitazone intervention].
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Yuan Ge-heng, Zhang Wei-yan, Hui Yan, Guo Xiao-hui
Аннотация
OBJECTIVE: To measure the changes in plasma amylin level among obese patients at different glucose metabolic states, and to evaluate effects of rosiglitazone intervention on obese type 2 diabetes patients.
METHODS: A total of 92 obese patients were categorized into normal glucose tolerance group (Group A, n=31), impaired glucose tolerance group (Group B, n=30), and type 2 diabetes group (Group C, n=31) according to oral glucose tolerance test (OGTT) results. Within the new type 2 diabetes group, patients were further randomized into 4 mg rosiglitazone treatment group and life style adjustment group. Body mass index (BMI) and waist circumference of all the patients were measured, and their plasma amylin and true insulin levels measured by radioimmunoassay and EIA.
RESULTS: Compared with Group A, both fasting and 30 minute glucose load plasma amylin levels, and ΔAmylin30/ΔGlucose30 in Group B and C were lower. Compared with the life style adjustment group, both fasting and 30 minute plasma amylin levels, and homeostasis model assessment for B cell function (HOMA-B) were higher in the group that received rosiglitazone treatment, but still lower than those in the Group A.
CONCLUSION: Pancreatic B cell function and amylin secretion were impaired in the abnormal metabolic states of impaired glucose tolerance and type 2 diabetes patients. Rosiglitazone intervention helped to improve B cell function and increase amylin level.
METHODS: A total of 92 obese patients were categorized into normal glucose tolerance group (Group A, n=31), impaired glucose tolerance group (Group B, n=30), and type 2 diabetes group (Group C, n=31) according to oral glucose tolerance test (OGTT) results. Within the new type 2 diabetes group, patients were further randomized into 4 mg rosiglitazone treatment group and life style adjustment group. Body mass index (BMI) and waist circumference of all the patients were measured, and their plasma amylin and true insulin levels measured by radioimmunoassay and EIA.
RESULTS: Compared with Group A, both fasting and 30 minute glucose load plasma amylin levels, and ΔAmylin30/ΔGlucose30 in Group B and C were lower. Compared with the life style adjustment group, both fasting and 30 minute plasma amylin levels, and homeostasis model assessment for B cell function (HOMA-B) were higher in the group that received rosiglitazone treatment, but still lower than those in the Group A.
CONCLUSION: Pancreatic B cell function and amylin secretion were impaired in the abnormal metabolic states of impaired glucose tolerance and type 2 diabetes patients. Rosiglitazone intervention helped to improve B cell function and increase amylin level.