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91.
Our aim was to evaluate the optimal treatment strategy addressing cardiovascular risk in obese and nonobese patients with polycystic ovary syndrome (PCOS). We planned a prospect?ve randomized clinical study. Normoandrogenemic and oligoamenorrheic women with PCOS and impaired glucose tolerance (n?=?96) were enrolled in the study. Six months of treatment with metformin HCL or oral contraceptive pills (OCPs) were given to the patients. Group 1 were obese and receiving metformin. Group 2 were obese and receiving OCPs. Group 3 were nonobese and receiving metformin, and Group 4 were nonobese receiving OCPs. ADMA, homocysteine, high sensitive C-reactive protein (hs-CRP) and homeostasis model assessment estimate of insulin resistance (HOMA-IR) were investigated. ADMA, homocysteine, hs-CRP and HOMA-IR were similar in obese and nonobese groups before the treatment. After 6 months of treatment, a significant decrease was observed in ADMA, homocysteine and HOMA-IR levels in Groups 1 and 3. An increase in ADMA and hs-CRP levels was observed in Groups 2 and 4. In this study, metformin treatment leads to improvement in hormonal and metabolic parameters and decreases ADMA and homocysteine levels possibly independent of BMI. However, the use of oral contraceptives in obese and nonobese patients with PCOS with impaired glucose tolerance increases ADMA and hs-CRP levels and creates an increase in the metabolic risk.  相似文献   
92.
Abstract

Objective: Oral contraceptive pills (OCP) are widely used for treating women with polycystic ovary syndrome (PCOS). Metformin has beneficial effects on insulin resistance and endothelial functions. The aim of this study was to investigate the effects of treatment with drospirenone/ethinyl estradiol (EE) alone or in combination with metformin on the flow-mediated vasodilatation (FMD) and carotid intima media thickness (CIMT) in women with PCOS.

Methods: Fifty women with PCOS (mean age 23?±?5) were randomized to oral treatment of OCP alone (n?=?25) or an OCP combination with metformin (n?=?25) for 6 months. FMD from the brachial artery and CIMT were calculated. The hormonal profile, HOMA-IR score, basal insulin and glucose levels were studied in both groups. Before and after 6 months' treatment, echocardiographic measurements and laboratory tests were also obtained.

Results: After 6 months' treatment we observed a small decrease in FMD in the OCP group (14.9?±?9.4 versus 14.4?±?9.9, p?=?0.801) and a slight increase in the combination group (14.5?±?9.1 versus 15.0?±?8.0, p?=?0.715) but neither of them reached significance. CIMT increased in the OCP group (0.048?±?0.011 to 0.050?±?0.010?cm, p?=?0.433) and decreased slightly in the combination group (0.049?±?0.012, 0.048?±?0.011?cm, p?=?0.833).

Conclusion: We demonstrated that adding metformin to OCP treatment may have beneficial effect on FMD and CIMT that represent vascular function in patients with PCOS. These results suggest that adding metformin to OCP treatment for PCOS could preserve the cardiovascular system and improve it.  相似文献   
93.
目的评价二甲双胍对2型糖尿病合并亚临床甲状腺功能异常患者的影响。方法选择2型糖尿病合并亚临床甲状腺功能异常患者81例,按亚临床甲状腺功能减退或亢进分为两组,给予二甲双胍片3次/d,每次0.25 g,观察其对两组患者治疗后血清促甲状腺素含量的影响。结果 81例患者治疗后血糖降低,治疗前后血糖值比较,差异有统计学意义(P<0.05);两组患者的TT3和TT4治疗前后比较差异均无统计学意义(P>0.05);亚临床甲状腺功能亢进组治疗后TSH值降低,治疗前后比较差异有统计学意义(P<0.05)。结论二甲双胍可降低2型糖尿病合并亚临床甲状腺功能异常患者血清促甲状腺素含量,其在治疗2型糖尿病的同时对甲状腺功能无损害。  相似文献   
94.
目的:探讨二甲双胍对抗精神病药所致高催乳素血症(HPRL)的治疗效果。方法:选择抗精神病药治疗过程中出现HPRL的住院精神疾病患者共24例,给予二甲双胍0.75g/d口服,观察12周。分别于治疗前和治疗4周、8周和12周后测定PRL水平。结果:24例患者二甲双胍治疗前PRL水平平均(80.62±56.26)ng/ml,治疗4周后PRL水平降至(62.94±43.49)ng/ml,平均降低(17.69±25.30)ng/ml,治疗前后比较,差异有统计学意义(t=3.424,P〈0.01)。结论:二甲双胍对于抗精神病药所致HPRL可能具有降低PRL的作用。  相似文献   
95.
目的:观察二甲双胍对抗精神病药所致精神分裂症患者肥胖及糖脂代谢的影响。方法:122例长期服用抗精神病药所致肥胖的精神分裂症患者随机分为研究组62例和对照组60例,两组维持原有抗精神病药治疗不变,研究组加用二甲双胍1.0 g/d,疗程6个月。两组分别于基线及治疗后1、3、6个月测定空腹血糖(FBG)、餐后2 h血糖(2 h PBG)、总胆固醇(TC)、三酰甘油(TG)、低密度脂蛋白(LDL)、高密度脂蛋白(HDL)及体质量指数(BMI)。结果:在治疗后1~3个月,研究组FBG、2 h PBG、TC、TG、LDL、HDL及BMI各项指标均逐步下降,并低于对照组(t=2.03~2.35,P均0.05);治疗6个月,研究组除HDL外,LDL、BMI、FBG、2 h PBG、TC、TG均明显低于对照组(t=2.08~4.47,P0.05或P0.01)。结论:二甲双胍可降低抗精神病药所致肥胖者的血糖、血脂水平及体质量。  相似文献   
96.
97.
    
The effects of metformin on a testicular torsion injury in adolescent rat testis after I/R were evaluated in the present study. Forty adolescent rats were divided into five groups with eight rats per group: a control group; a sham-operated group; an ischaemia group, where torsion was applied for 4 hr and testis was examined immediately after detorsion; an I/R group, where torsion was applied for 4 hr and the testis was examined 4 hr after detorsion; and an I/R + M group, where the metformin (300 mg/kg) administration was added to the identical procedures used for the I/R group. Spermatogenesis, basal membrane integrity and cleaved caspase-3 expression were assessed. The I/R + M group had a significantly higher Johnsen score than the I/R group (7.9 ± 0.1 vs. 7.5 ± 0.2; p < .001; F-value = 14.2). Failure of basal membrane integrity was highest in the ischaemia group (45 ± 5) compared to the other groups (control group, 20 ± 5; sham-operated group, 16.6 ± 2.8), but not different between the I/R + M (31.6 ± 12.5) and the I/R groups (25 ± 3.5). Cleaved caspase-3 expression was highest in the ischaemia group (73.5 ± 0.7), and significantly lower in the I/R + M group (33.4 ± 0.9) than the I/R group (58.5 ± 0.2; p < .05; F-value = 7.6). Metformin decreases testicular damage by exerting protection against the harmful effects of I/R on spermatogenesis and alleviating apoptosis in adolescent rat testis.  相似文献   
98.
99.
    
Metformin was found to reduce elevated prolactin levels in women but not in men. The current study was aimed at investigating whether endogenous testosterone determines the impact of metformin on lactotroph function in men. This prospective case‐control study included 28 men with recently diagnosed type 2 diabetes mellitus and mild or moderate hyperprolactinaemia, 14 of whom had low testosterone levels, while in the remaining 14 ones' testosterone levels were within the reference range. All participants received metformin (2.55‐3 g daily) for the following 4 months. Circulating levels of glucose, insulin, prolactin, testosterone, oestradiol, gonadotropins, sex hormone‐binding globulin adrenocorticotropic hormone, insulin‐like growth factor‐1, thyrotropin and free thyroid hormones were measured at the beginning and at the end of the study. Although metformin reduced plasma glucose levels and improved insulin sensitivity in both groups, this effect was stronger in participants with low testosterone levels. Only in patients with abnormally low testosterone levels, the drug decreased prolactin levels. This effect, which was accompanied by an increase in luteinizing hormone levels, was inversely correlated with baseline testosterone and calculated free testosterone levels, and positively with treatment‐induced improvement in insulin sensitivity. In both treatment groups, metformin produced a neutral effect on plasma levels of the remaining hormones. The obtained results suggest that endogenous testosterone may attenuate the impact of metformin on lactotropic cells.  相似文献   
100.
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