摘要:目的:了解甘精胰岛素联合二甲双胍治疗对口服降糖药血糖控制不理想的2型糖尿病患者的疗效和安全性。方法:对30例口服降糖药血糖控制不理想的2型糖尿病患者给与甘精胰岛素联合二甲双胍治疗,共12周。治疗前后测身高、体重、空腹血糖(FPG)、餐后2小时血糖(PPG)以及糖化血红蛋白(HbA1c)水平。了解治疗期间低血糖发生情况。结果:治疗后的FPG、PPG以及HbA1c水平明显下降,分别下降了303mmol/L、510mmol/L和198%,差异有统计学意义(Plt;005)。治疗后5330%的患者HbA1c水平lt;70%。治疗前HbA1c水平≥70%lt;90%的患者,治疗后706%的患者HbA1c水平lt;70%,治疗前HbA1c水平≥90%的患者,治疗后307%的患者HbA1c水平lt;70%,两者的HbA1c达标率有明显差异(Plt;005)。治疗前后体重及BMI无明显差异(Pgt;005)。30例患者中仅发生两次轻微低血糖。结论:甘精胰岛素联合二甲双胍治疗对口服降糖药治疗血糖控制不理想的2型糖尿病患者是安全有效的,尤其是对HbA1c水平lt;90%的患者,血糖控制更好,达标率更高。
目的 采用液相色谱-串联质谱法测定人血浆中二甲双胍的浓度。 方法 血浆样品用乙腈（含0.1%甲酸）沉淀蛋白后用二氯甲烷反洗后进行分析。使用Agilent C8（75 mm×4.6 mm，3.5 μm）色谱柱。流动相：A泵：5 mmol/L醋酸铵（三乙胺调pH值至7.5），B泵：乙腈。线性梯度洗脱，流速0.4 mL/min。采用电喷雾离子源，多反应离子监测。用于定量分析的离子对二甲双胍为130.2/71.1，内标吗啉胍为172.2/60.2。 结果 线性范围为50～2 000 ng/mL，最低定量限为50 ng/mL，预处理回收率为81.7%～98.0%，二甲双胍的基质效应＜9.97%，日内和日间相对标准偏差均＜5.2%。 结论 液相色谱-串联质谱法快速、简便、灵敏度高，是一种适用于人血浆中药物浓度的测定及药物动力学和生物利用度研究的方法。
目的:探讨二甲双胍合并克罗米芬在治疗多囊卵巢综合征中的作用,为多囊卵巢综合征的治疗提供合理依据。方法:80例患者给予二甲双胍合并克罗米芬治疗,比较治疗前后临床症状、内分泌和生化指标的变化情况,与单一给予克罗米芬促排卵治疗比较排卵、妊娠情况。结果:用药后体重指数(BMI)、腰臀比(WHR)、空腹胰岛素(FINS)、睾酮(T)促黄体生成素(LH)、LH/FSH明显下降,Plt;0.05;雌二醇(E2)、促卵泡生成素(FSH)改变不明显,联合用药后排卵、妊娠率明显高于单一克罗米芬治疗,Plt;0.05。结论:二甲双胍合并克罗米芬可改善临床症状,提高排卵、妊娠率,降低LH/FSH比值、LH、T水平,提高胰岛素的敏感性。
【摘要】 目的 探讨二甲双胍致不良反应的一般规律和特点。 方法 检索1994年-2011年中国期刊全文数据库中二甲双胍所致不良反应个案报道的文献，得到符合条件的文献29篇共33例，进行统计分析。 结果 33例不良反应主要表现为内分泌系统（48.5%），皮肤及附件（18.2%），变态反应（15.2%），消化系统（9.1%），神经系统（6.1%）等。 结论 临床上应重视二甲双胍引起的不良反应，用药时应加强对患者的监护，以减少严重药物不良反应的发生。【Abstract】 Objective To investigate the characteristics and the general pattern of the adverse drug reactions (ADR) induced by metformin. Methods The ADR induced by metformin reported in domestic medical journals during 1994-2008 were retrieved by means of CNKI. A total of 29 related literatures involving 33 cases, and a related database was established for statistical analysis. Results The main clinical manifestation represented as endocrine system (48.5%), lesion of skin and its appendants (18.2%), allergic reactions (15.2%), digestive system (9.1%), nervous system (6.1%) and so on. Conclusion It is necessary to pay attention to ADR induced by metformin and strengthen observation during medication in order to reduce serious ADR.
目的:比较罗格列酮钠片与二甲双胍片分别联合胰岛素治疗2型糖尿病的疗效和安全性。方法:40例单用胰岛素控制血糖不理想的2型糖尿病患者,随机分为A组,太罗组(罗格列酮钠片)(21例);B组,二甲双胍组(19例),进行为期16周的对照观察。结果:两组治疗后空腹及餐后2小时血糖及糖化血红蛋白(HbA1c)均呈有意义的下降(Plt;0.05),从下降幅度的百分率统计,太罗组下降幅度明显高于二甲双胍组。结论:太罗联合胰岛素治疗对于血糖的控制明显优于二甲双胍联合胰岛素治疗。
Objectives To assess the efficacy and safety of metformin plus rosiglitazone in treating type 2 diabetes mellitus. Methods Based on the principles and methods of Cochrane systematic reviews, we searched the CochraneLibrary (2008, 4 issue), PubMed (1966 to October 19, 2008), Embase (1974 to October 19, 2008), China BiomedicalLiterature Database (1978 to October 12, 2008), China Journal Fulltext Database (1994 to October 12, 2008), ChineseScientific Journals Full text Database (1989 to October 12, 2008). Randomized controlled trials (RCTs) of Metforminplus roziglitazone versus metformin for type 2 diabetes were included. We assessed the quality of the included RCTsaccording to the Cochrane Handbook for Systematic Reviews of Interventions Version 5.0.1. The Cochrane Collaboration’s software RevMan 5.0 was used for meta-analysis. Results Twelve RCTs totaling 3020 patients were included. Metaanalysis showed that Glycosylated hemoglobin levels [WMD= – 0.48%, 95%CI (– 0.74, – 0.22), P=0.000 3], fasting plasma glucose levels [WMD= – 1.03mmol/L, 95%CI (– 1.85, – 0.75), Plt;0.000 01], insulin sensitivity, and β-cell function improved significantly with metformin plus rosiglitazone therapy. Compared with the metformin monotherapy group, patients treated with metformin plus rosiglitazone had more edema events [RR= 3.27, 95%CI (1.80, 5.91), Plt;0.000 1] and lower gastro-intestinal events [RR= 0.82, 95%CI (0.71, 0.94), P=0.004]. We found no statistically significant effect on body weight, the percentage of patients with at least one adverse event, and hypoglycemia events. Conclusions Current evidence demonstrates that combination treatment with metformin plus rosiglitazone improves glycemic control, insulin sensitivity, and cells function more effectively than with metformin monotherapy. Side effects of two types of therapy have differences in performance.
目的:罗格列酮(RGZ)联合二甲双胍治疗初诊2型糖尿病(T2DM)的临床疗效和安全性。方法:40例初诊2型糖尿病联用罗格列酮和二甲双胍进行12周的治疗,测定治疗前后空腹血糖(FBG)、餐后2小时血糖(PPG)、糖化血红蛋白(HbA1c)、胰岛素、C-肽、甘油三脂、体重指数(BMI),胰岛素抵抗指数(IR)、血常规、肝、肾功能等。 结果:治疗前后对照,空腹及餐后血糖、胰岛素、甘油三脂、IRI降低,具有显著差异性(Plt;0.001),体重指数变化不大(Pgt;0.05),未发生肝肾功能损害。结论:罗格列酮联合二甲双胍治疗2型糖尿病,明显改善胰岛素抵抗,降糖疗效确切。
Objective To systematically evaluate the efficacy and safety of letrozole combined with metformin in the treatment of polycystic ovarian syndrome (PCOS) infertility. Methods PubMed, Cochrane Library, Embase, China National Knowledge Infrastructure, Chongqing VIP, Wanfang, and SinoMed were searched from establishment to December 31, 2022. The literature on randomized controlled trials of letrozole combined with metformin in the treatment of PCOS infertility were included. RevMan 5.4 software was used for meta-analysis. Results A total of 29 articles including 3226 subjects were included, with trial group of 1614 treated with letrozole combined with metformin, and control group of 1612 treated with letrozole alone. The meta-analysis results showed that the clinical pregnancy rate [relative risk (RR)=1.76, 95% confidence interval (CI) (1.61, 1.92)], induced ovulation rate [RR=1.22, 95%CI (1.17, 1.28)], and number of dominant follicles [mean difference (MD)=1.15, 95%CI (0.86, 1.43)] in the trial group were higher than those in the control group (P<0.05). The follicle growth time [MD=−5.41 d, 95%CI (−6.03, −4.80) d], estradiol level [MD=−7.57 pmol/L, 95%CI (−10.59, −4.56) pmol/L], luteinizing hormone level [MD=−2.27 U/L, 95%CI (−2.59, −1.95) U/L], testosterone level [MD=−1.29 nmol/L, 95%CI (−1.74, −0.85) nmol/L], fasting blood glucose level [MD=−0.91 mmol/L, 95%CI (−1.71, −0.65) mmol/L], fasting insulin level [MD=−25.93 pmol/L, 95%CI (−29.06, −22.80) pmol/L], insulin resistance index [MD=−1.40, 95%CI (−1.61, −1.19)], and the incidence of ovarian hyperstimulation syndrome [RR=0.44, 95%CI (0.22, 0.88)] in the trial group were lower than those in the control group (P<0.05). There was no statistically significant difference in follicle stimulating hormone level, incidence of adverse reactions, and spontaneous abortion rates between the two groups (P>0.05). Conclusion Existing evidence suggests that compared to using trazole alone, the combination of letrozole and metformin can improve ovulation induction and pregnancy outcomes in patients with PCOS infertility. The combination of the two drugs can reduce levels of estradiol, testosterone, and luteinizing hormone in patients, while effectively reducing the incidence of ovarian hyperstimulation syndrome.
Objective To observe the synergistic effect of metformin and anti-vascular endothelial growth factor (VEGF) in the treatment of diabetic retinopathy. Methods This study was composed of clinical data review and in vitro cell experiment. Ten patients (12 eyes) with diabetic macular edema treated with anti-VEGF drugs were included in the study. Patients were randomly divided into the VEGF group (anti-VEGF drug therapy) and the combined treatment group (anti-VEGF drug combined with metformin). The changes of visual acuity and central retinal thickness (CRT) were compared between the two groups. As far as the in vitro experiment was concerned, vascular endothelial cells were divided into the control group (normal cells), the VEGF group (50 ng/ml VEGF), the anti-VEGF group (50 ng/ml VEGF+2.5 μg/ml of conbercept), and the combined group (50 ng/ml VEGF +2.5 μg/ml of conbercept +2.0 mmol/L of metformin). And then MTT cell viability assay, scratch assay and real-time quantitative polymerase chain reaction assay were performed to analyze the cell viability, cell migration and mRNA level of VEGFR2, protein kinase C (PKC)-α and PKC-β successively. ResultsReview of clinical trial shows that the CRT recovery rates in the combined treatment group were much higher than that in the VEGF group at 3 month after the operation, while the difference was statistically significant (t=−2.462, P＜0.05). In vitro cell experiment results showed that VEGF induction upregulated the viability and mobility of vascular endothelial cells obviously compared with control group, at the same time, the use of anti VEGF drugs can effectively reverse the trend, in contrast, combination of metformin and anti-VEGF showed a more superior effect to some extent (P＜0.05). In the VEGF group, the mRNA expression of VEGFR2, PKC-αand PKC-β were significantly increased compared with the control group (P＜0.01); while the mRNA expression of VEGFR2, PKC-αand PKC-β in the combination group decreased significantly compared with the VEGF group and the control group (P＜0.05). However, in the anti-VEGF group, the mRNA expression of VEGFR2, PKC-αand PKC-β were decreased, but has failed to reach the level of statistical learn the difference. ConclusionsThe combination of metformin and anti-VEGF drugs can reduce the CRT of diabetic retinopathy patients and inhibit the proliferation and migration of retinal vascular endothelial cells which induced by VEGF. The synergistic mechanism may be related to the inhibitory effect of metformin on the expression of VEGFR and PKC.