Objective To explore the effect of rosiglitazone on the insulin sensitivity and ?-cell function in polycystic ovary syndrome(PCOS)patients accompanied with insulin resistance.Methods Rosiglitazone was given to 15 patients PCOS with insulin resistance at a dose of 4 mg daily for 12 weeks.All patients underwent an oral glucose tolerance test and Botnia clamp,and their body mass index(BMI),waist/hip ratio(WHR),serum pressure,follicle-stimulating hormone(FSH),luteinizing hormone(LH),testosterone,free testosterone(FT),glucose and insulin were determined and compared before and at the end of the treatment.Results After 12 weeks' treatment,Waist/Hip ratio,FT and LH/FSH ratio,and fasting insulin were significantly decreased(P

Objective:To analyze the effect and safety of blood glucose fluctuation in brittle diabetes treated with intensive insulin therapy combined with sodium-glucose transporter 2 inhibitor.Methods:Ninety-eight patients with brittle diabetes in Shenzhen Longhua District People's Hospital were selected from May 2017 to May 2019. They were divided into two groups by random number table, 49 cases in each group. The control group was treated with intensive insulin therapy combined with saglitine, while the observation group was treated with intensive insulin therapy combined with sodium-glucose transporter 2 inhibitor. Following up for 12 weeks, the plasma glucose and blood glycemic variations, insulin dosage, plasma 8-iso-prostaglandin F2α, hypersensitive C-reactive protein and safety related indicators were compared between the two groups before and after treatment.Results:Compared with the control group, the standard deviation of blood glucose [(1.8±0.5)mmol/L vs (6.5±1.4)mmol/L, t=7.235], large amplitude glycemic excursions [(6.5±1.1)mmol/L vs (17.3±4.7)mmol/L, t=13.446], postprandial glucose excursion [(1.2±0.4)mmol/L vs (9.2±2.0)mmol/L, t=8.921], inter-quartile range [(3.7±1.1)mmol/L vs (12.4±4.2)mmol/L, t=7.003], means of daily difference [(1.5±0.4)mmol/L vs (4.6±0.8)mmol/L, t=4.537] in the observation group were significantly decreased ( P<0.05), and the levels of plasma 8-iso-prostaglandin F2α [(7.8±1.2)ng/L vs (13.6±2.3)ng/L, t=4.882], hypersensitive C-reactive protein [(5.2±1.3)mg/L vs (8.7±1.3)mg/L, t=4.406], insulin dosage [(30.9±10.2)U/d vs (42.3±13.4)U/d, t=5.726] and body mass index [(18.3±1.2)kg/m 2 vs (21.0±2.3)kg/m 2, t=4.135] also decreased significantly ( P<0.05), and the incidence of hypoglycemic events [16.3%(8/49) vs 36.7%(18/49), χ 2=9.697] and severe hypoglycemia [0 vs 14.3%(7/49), χ 2=7.268] decreased significantly ( P<0.05). Conclusions:Combination of dapagliflozin and intensive insulin therapy can significantly improve glucose metabolism in brittle diabetes, and reduce insulin dosage and hypoglycemic events.

Serum cortisol levels during oral glucose tolerance test (OGTY) were measured in subjects of type 2 diabetic pedigrees. The results showed that cortisol levels during OGTF were higher in type 2 diabetic patients than those in non-diabetic first-degree relatives and normal controls. Fasting cortisol level was positively correlated with fasting plasma glucose level in type 2 diabetic pedigree members. These results suggest that the dysregulation of hypothalamic-pituitary-adrenal axis may coexist in type 2 diabetic patients.

Objective To investigate the change of serum non-esterified fatty acid (NEFA) level in nondiabetic first-degree relatives of type 2 diabetics, and to explore the related factors in the change.MethodsSerum lipid profile, plasma glucose and insulin levels were measured in 186 type 2 diabetic patients, 565 nondiabetic first-degree relatives of type 2 diabetics and 149 normal controls. Results (1) The fasting NEFA level in first-degree relatives was significantly lower than that of type 2 diabetic patients [(0.53±0.28 vs 0.63±0.31) mmol/L,P＜0.01]and HOMA-IR was significantly higher than that of normal controls (0.98±0.51 vs 0.89±0.47,P＜0.01). (2) The fasting NEFA level in the first-degree relatives with higher body mass index (BMI), plasma glucose or area under curve of glucose concentration (AUCglu) was higher than that in those with lower BMI, plasma glucose , blood pressure or AUCglu (all P＜0.05). (3) NEFA showed significantly positive correlations with BMI, systolic blood pressure, diastolic blood pressure (DBP), AUCglu in the first-degree relatives by correlative analysis (r=0.12, r=0.148, r=0.21 and r=0.281 respectively, all P＜0.05). Stepwise linear regression analysis showed that DBP, AUCglu and age were the independent risk factors of NEFA (all P＜0.01). Conclusion Insulin resistance exists in nondiabetic first-degree relatives of type 2 diabetics, which seems to be related to elevated NEFA levels.

Objective To explore the variation and influential factors of high sensitive C-reactive protein (hs-CRP) level in type 2 diabetic family members. Methods A total of 427 type 2 diabetic patients, 377 non-diabetic first-degree relatives of type 2 diabetics and 135 normal control subjects without diabetic family history were recruited. Serum hs-CRP, clinical and biochemical parameters were measured. The relations among indicators were analyzed. Results Compared with normal control subjects, serum hs-CRP levels in type 2 diabetics and first-degree relatives were significantly increased (both P＜0.05), and the increment was even marked in type 2 diabetics than that in first-degree relatives (P＜0.01). The serum hs-CRP levels in type 2 diabetics and first-degree relatives were positively associated with body mass index, waist-hip ratio, abdominal circumference, postgrandial 2 h plasma glucose, fasting and postgrandial 2 h serum insulin, HOMA-IR, triglyceride, creatinine and negatively correlated with high density lipoprotein-cholesterol. In first-degree relatives, serum hs-CRP level was positively associated with systolic blood pressure and HOMA-β. Conclusion As in type 2 diabetic patients, there exists inflammatory reaction in the non-diabetic first-degree relatives of type 2 diabetics, which may play an important role in the pathogenesis of type 2 diabetes mellitus.

OBJECTIVETo investigate the G-protein beta 3 subunit (GNB3) gene 825C/T polymorphism and its relationship to obesity in Chinese population.

METHODSThree hundred and ninety nine subjects (270 non-obese and 129 obese individuals) from a population of Chinese Han nationality in Chengdu area were studied using PCR-restriction fragment length polymorphisms (PCR-RFLPs). Serum lipids were measured by enzymatic kits and apolipoproteins A I, A II, B100, C II, C III and E were measured by RID kits.

RESULTSThe frequencies of C and T alleles at the 825C/T site in obese and non-obese groups were 0.531 and 0.469, and 0.528 and 0.472, respectively. It showed no significant difference in both genotypes and allele frequencies between the non-obese and obese groups (P> 0.05). The frequency of T allele at 825C/T site in GNB3 gene in the population (0.471) was significantly higher than that of German white (0.319), lower than that of African black (0.788), and similar to that of Japanese (0.487). In the non-obese group, subjects with genotype TT had higher serum triglyceride(TG) concentrations than those with genotype CT (P< 0.05). In the obese group, subjects with genotype CC had lower serum high-density lipoprotein cholesterol(HDL-C) levels than those with CT genotype (P< 0.05). Similar results were only observed in non-obese male and obese female subgroups, respectively, when male and female subgroups were further separated in the two groups. In addition, non-obese males with genotype TT and obese females with genotype CC had lower HDL-C and higher apoA I levels than those with genotype CT, respectively. Obese males with genotype TT had higher apoA I levels than those with genotype CC.

CONCLUSIONThe 825C/T polymorphism in the GNB3 gene was not associated with obesity in Chinese Han population of Chengdu area. However, it may be associated with serum triglyceride, HDL-C and apoAI levels, with some gender-specific effect, in this population.

Adult ; Aged ; Aged, 80 and over ; Apolipoproteins ; blood ; Asian Continental Ancestry Group ; genetics ; Case-Control Studies ; Ethnic Groups ; genetics ; Female ; Gene Frequency ; Genotype ; Heterotrimeric GTP-Binding Proteins ; genetics ; Humans ; Lipids ; blood ; Male ; Middle Aged ; Obesity ; blood ; genetics ; Polymorphism, Single Nucleotide ; Sex Factors