吡格列酮对高脂饮食兔主动脉LOX-1表达的影响

目的探讨吡格列酮对高脂饮食下兔主动脉LOX-1表达的影响及其对动脉粥样硬化的作用。方法设立正常饮食、高脂饮食及高脂饮食加吡格列酮干预3组,通过比较主动脉病理形态学改变、血脂的变化、LOX-1分子及mRNA的表达进行研究,采用免疫组化检测兔主动脉LOX-1分子的表达,采用RT-PCR检测LOX-1mRNA的表达。结果吡格列酮能减轻高脂饮食所致的内膜增厚和平滑肌增生,减轻高脂血症所致动脉粥样硬化的发展。吡格列酮还能明显升高HDL,对TC、LDL、TG和BS无明显影响。高脂饮食刺激兔主动脉LOX-1分子及mRNA的表达,吡格列酮能显著减轻这种作用。结论吡格列酮能减轻高脂饮食兔主动脉LOX-1分子及mRNA的表达,这可能是噻唑烷酮类药物抗动脉粥样硬化的重要作用机制。     

国产盐酸吡格列酮对2型糖尿病的疗效及安全性研究

目的:评价国产盐酸吡格列酮对2型糖尿病(DM)患者合用磺脲类及双胍类药物时的降糖疗效及安全性.方法:采用随机、双盲、安慰剂平行对照的临床研究方法,将48例应用磺脲类及双胍类治疗而空腹血糖(FPG)控制不佳(7.5 mmol·L-1≤FPG<12.0 mmol·L-1)的2型DM患者随机分为吡格列酮组(30 mg·d-1)与安慰剂组治疗,共12周.结果:于12周时,吡格列酮组与安慰剂组FPG较基线值分别下降1.1 mmol·L-1和0.23 mmol·L-1 (P<0.05);PPG分别下降1.7 mmol·L-1和0.23 mmol·L-1 (P＞0.05);HbAlc分别下降0.52%和0.05%(P＞0.05).结论:12周的临床观察显示,对2型DM患者饮食、运动和应用磺脲类及双胍类治疗而血糖控制不佳者联合应用盐酸吡格列酮(30 mg·d-1),改善糖代谢紊乱,且安全性和依从性好.     

血浆中吡格列酮的测定及其在人体内的药动学研究

目的 建立测定血浆中吡格列酮的方法.方法 采用Diamosil C18(150 mm×4.6 mm,5 μm)色谱柱,以乙腈-pH5.8磷酸盐缓冲液(55:45)为流动相,安定为内标,检测波长225 nm.结果 吡格列酮在0.02-2.00 μg·ml-1范围内,线性良好(r=0.9968),平均回收率为105.3%,日内、日间的RSD为4.23%～18.40%.结论 所建方法操作简便、快速、重复性好、准确可靠,适用于临床血药浓度的监测及药动学研究.     

盐酸吡格列酮固体制剂的溶出度考察

目的：建立一种对盐酸吡格列酮固体制剂体外溶出情况区别能力更强的溶出度测定方法。方法：通过比较盐酸吡格列酮固体制剂在不同介质中（pH1．0、pH2．0等）的溶出差异性及与参比制剂的体外溶出曲线的相似性采确定溶出方法。结果：采用桨法,以pH2．0缓冲液为溶出介质,转速为50r·min^-1的溶出条件下,国产盐酸吡格列酮固体制剂与参比制剂的溶出行为存在很大差异,而且不同生产厂家的溶出行为具有明显区别。结论：国产制剂的内在质量与参比制剂仍存在较大差异,确定的溶出方法对制剂体外溶出度的区别能力更强。     

吡格列酮对2型糖尿病肾病患者血清AGE-肽和MCP-1的影响

目的 探讨吡格列酮对2型糖尿病肾病患者血清糖基化终产物-肽（AGE-肽）和单核细胞趋化蛋白-1（MCP-1）水平的影响。方法 2型糖尿病伴微量白蛋白尿患者60例,分别接受格列吡嗪控释片（瑞易宁）和吡格列酮治疗6个月。流动注射分析法检测血清AGE-肽,EUSA法检测血清MCP-1。结果 两组患者治疗后血清AGE-肽均较治疗前下降,吡格列酮组明显低于瑞易宁组;吡格列酮组治疗后血清MCP-1较治疗前明显下降,且明显低于瑞易宁组;吡格列酮组治疗后尿白蛋白／肌酐下降值与血清AGE-肽和MCP-1下降值呈明显正相关。结论 吡格列酮降低糖尿病。肾病患者血清AGE-肽和MCP-1水平,可能通过抗炎抗糖基化机制发挥肾保护效应。     

门冬胰岛素联合吡格列酮二甲双胍治疗糖尿病患者的临床效果及安全性

目的 探究门冬胰岛素联合吡格列酮二甲双胍治疗糖尿病患者的临床效果及安全性。方法 90例糖尿病患者,采取随机数字表法分为观察组与对照组,各45例。对照组给予门冬胰岛素30治疗,观察组在对照组基础上加用吡格列酮二甲双胍治疗。对比两组治疗前后的血糖相关指标、胰岛素用量、不良反应发生率。结果 治疗后,观察组空腹血糖(5.66±1.09)mmol/L、餐后2 h血糖(9.80±1.97)mmol/L、糖化血红蛋白(6.40±1.15)%均低于对照组的(8.57±1.25)mmol/L、(15.43±3.09)mmol/L、(7.85±1.27)%,差异有统计学意义(P<0.05)。观察组治疗期间胰岛素用量(32.78±5.50)U少于对照组的(41.08±6.33)U,差异有统计学意义(P<0.05)。两组不良反应发生率比较,差异无统计学意义(P>0.05)。结论 门冬胰岛素联合吡格列酮二甲双胍治疗糖尿病患者可取得较好的降低血糖水平的目的 ,安全性高。     

吡格列酮联合二甲双胍治疗2型糖尿病疗效探讨

目的 探讨吡格列酮联合二甲双胍治疗2型糖尿病的疗效.方法 在该院2019年4月—2020年3月收治的2型糖尿病患者中选取76例.按照入院编号分成两组:对照组38例,使用二甲双胍片治疗;试验组38例,联合使用吡格列酮片.观察两组的治疗效果和不良反应,比较治疗前后的血糖、血脂水平变化.结果 相比于对照组,试验组患者的治疗总...     

Effects of early use of pioglitazone in combination with metformin in patients with newly diagnosed type 2 diabetes

ABSTRACT

Background: Type 2 diabetes is characterised by a progressive decline in HbA_1c control over time. Early combination therapy, rather than sequential introduction of individual oral glucose-lowering agents, has been proposed to prevent this gradual rise in HbA_1c. This observational study assessed the effect of early dual combination oral glucose-lowering therapies within 6 months of diagnosis in newly diagnosed, drug-naïve patients with type 2 diabetes.

Patients and methods: This was an observational, open-label, non-randomised study in newly diagnosed patients with type 2 diabetes, aged 35–70 years, with HbA_1c levels >?8.0% at diagnosis or >?7.0% at the 3–6-month follow-up. Patients were allocated to dietary management alone if the HbA_1c level was 7.0–8.0% at diagnosis. Metformin combined with gliclazide, repaglinide, or pioglitazone was given at diagnosis if the HbA_1c was >?8.0%. Similar treatments were introduced at 3–6 months if the HbA_1c was >?7.0%. Over a 3-year period, HbA_1c was measured at 3-monthly intervals. All patients underwent regular dietetic review. Target HbA_1c was ≤?7.0%.

Results: 416 patients were considered eligible for inclusion, with a mean (±?SD) age of 54.1 ± 9.2 years, BMI of 33.5 ± 6.1?kg/m², and baseline HbA_1c of 8.6 ± 1.7%. A mixed model analysis of variance on the 178 patients who started with combination therapy, either immediately or after a 3–6 month period on diet, showed that metformin plus gliclazide, repaglinide, or pioglitazone was associated with a gradual increase in HbA_1c values. Amongst those patients treated with the metformin/pio­glitazone combination there was an estimated 0.1% increase in HbA_1c/year. This was much less pronounced than the rises seen in HbA_1c/year of 0.5% with the met­formin/gliclazide and metformin/repaglinide combinations.

Conclusions: This preliminary analysis of an obervational, non-randomised, open-label ongoing study has shown that early use of combination therapy at time of diagnosis or within the first 3–6 months following diagnosis with metformin plus pioglitazone in newly diagnosed type 2 diabetes results in a slower deterioration in glycaemic control than that with metformin combined with either gliclazide or repaglinide. This may be due to the β?cell protective properties of pioglitazone. These results need to be confirmed by further studies with a more robust design and methodology.     

Pioglitazone: A review of analytical methods

Pioglitazone is an oral anti-hyperglycemic agent. It is used for the treatment of diabetes mellitus type 2. It selectively stimulates nuclear receptor peroxisome proliferator-activated receptor gamma (PPAR-gamma). It was the tenth-best-selling drug in the U.S. in 2008. This article examines published analytical methods reported so far in the literature for the determination of pioglitazone in biological samples and pharmaceutical formulations. They include various techniques like electrochemical methods, spectrophotometry, capillary electrophoresis, high-performance liquid chromatography, liquid chromatography–electrospray ionization-tandem mass spectrometry and high-performance thin layer chromatography.