胶艾汤不同炮制组方对动物激素水平与凝血机制的影响

目的 优选胶艾汤的最佳炮制组方.方法 对胶艾汤全方生品、部分炮制、全方炮制a、全方炮制b等四种不同的炮制组合方进行大鼠激素水平与凝血机制的测定,比较不同炮制组方的药效活性.结果 胶艾汤对大鼠雌二醇、孕酮、睾丸酮、内皮素与6-酮-前列腺素F1α、血栓素B2作用强弱顺序是全方炮制b>全方炮制a>部分炮制>全方生品.结论 胶艾汤全方炮制b的止血作用最强.     

坤泰胶囊联合亮丙瑞林治疗子宫内膜异位症的疗效观察

目的探讨坤泰胶囊联合醋酸亮丙瑞林缓释微球治疗子宫内膜异位症的安全性和有效性。方法选取郑州颐和医院2015年8月—2016年8月收治的子宫内膜异位症患者183例,随机分成对照组(91例)和治疗组(92例)。对照组患者皮下注射注射用醋酸亮丙瑞林缓释微球,于经期开始5 d内注射3.75 mg,每28天注射1次;治疗组在对照组的基础上口服坤泰胶囊,4粒/次,3次/d,两组均连续治疗3个月。分析评价两组患者治疗前后临床疗效、体内性激素水平、Kuppeman评分、VAS评分以及不良反应情况。结果治疗后,对照组和治疗组总有效率分别为82.42%、96.74%,两组比较差异有统计学意义(P0.05)。治疗后,两组患者雌二醇、黄体生成激素以及卵泡生成素水平均明显降低(P0.05);且治疗组患者性激素水平明显优于对照组患者(P0.05)。治疗后,两组患者Kuppeman评分明显升高,VAS评分明显降低,同组治疗前后比较差异具有统计学意义(P0.05);且治疗组患者Kuppeman评分和VAS评分改善情况要明显优于对照组患者,两组比较差异具有统计学意义(P0.05)。治疗期间对照组患者不良反应发生率为37.36%,显著高于治疗组的15.22%,两组比较差异具有统计学意义(P0.05)。结论坤泰胶囊联合醋酸亮丙瑞林缓释微球治疗子宫内膜异位症疗效好、安全性高,具有一定的临床推广应用价值。     

Disparity of in Vitro and in Vivo Oleic Acid-Enhanced β-Estradiol Percutaneous Absorption Across Human Skin

The permeation enhancing property of 5% oleic acid in ethanol on -estradiol was investigated in vitro and in vivo using symmetrical and asymmetrical side-by-side diffusion cells and the human skin sandwich flap, respectively. -Estradiol permeability in vitro and in vivo was similar in 75% ethanol (ETOH). Oleic acid (5%) did not alter -estradiol permeability in vivo but increased permeability sixfold in vitro in symmetrical diffusion cells. -Estradiol permeability in oleic acid was not different from that in ETOH, however, using asymmetrical diffusion cells. Stratum corneum-to-vehicle partition coefficients of -estradiol in the vehicles were similar, yet fourfold more steroid was detected in skin biopsies from the in vitro symmetrical diffusion cells. Thus, oleic acid increased -estradiol permeability in vitro only when skin was equilibrated with fatty acid. Attention to in vitro diffusion cell design and its relevance in vivo is critical to defining the mechanisms of enhanced solute permeation.     

雌二醇对内皮损伤后血管重塑的影响

目的 :观察雌二醇对血管内皮损伤后血管重塑的作用及可能机理。方法 :将雌性家兔行卵巢切除术后随机分为A、B、C组 ,A组每日注射 17 β雌二醇 40 0 μg/kg ,B组注射等量生理盐水 ,C组不注射。注射雌二醇 1周时3组均行右侧髂动脉近端内皮剥脱术 ,远端保持血管内皮完整 ,术后测量髂动脉管腔面积 (LA) ,内膜面积 (IA)、内弹力板环绕面积 (IEMA)、外弹力板环绕面积 (EEMA)。测定血管壁内皮剥脱处胶原纤维含量及分析Ⅰ /Ⅲ胶原比。结果 :A组较B、C组LA、IEMA、EEMA显著增大 ,负性血管重塑率显著减小。A组内皮剥脱处胶原含量较B、C组显著减少 ,三组之间Ⅰ /Ⅲ胶原比无显著差异。结论 :雌二醇能够改善血管重塑 ,减轻内皮损伤后的血管狭窄 ,这种良性血管重塑作用可能与雌激素可减少血管壁胶原含量 ,改善细胞外间质 (ECM)的代谢有关。     

The identification of cellular targets of 17β estradiol using a lytic (T7) cDNA phage display approach

To unravel the mechanism of action of chemical compounds, it is crucial to know their cellular targets. A novel in vitro tool that can be used as a fast, simple and cost effective alternative is cDNA phage display. This tool is used in our study to select cellular targets of 17β estradiol (E2). It was possible to select two potential cellular targets of E2 out of the T7 Select™ Human Breast cDNA phage library. The selected cellular targets, autophagy/beclin-1 regulator 1 (beclin 1) and ATP synthase F₀ subunit 6 (ATP6) have so far been unknown as binding proteins of E2. To confirm the E2 binding properties of these selected proteins, surface plasmon resonance (SPR) was used. With SPR the K_d values were determined to be 0.178 ± 0.031 and 0.401 ± 0.142 nM for the ATP6 phage and beclin 1 phage, respectively. These K_d values in the low nM range verify that the selected cellular proteins are indeed binding proteins for E2. The selection and identification of these two potential cellular targets of E2, can enhance our current understanding of its mechanism of action. This illustrates the potential of lytic (T7) cDNA phage display in toxicology, to provide important information about cellular targets of chemical compounds.     

去氧孕烯炔雌醇和米非司酮治疗功能失调性子宫出血的疗效观察

目的观察诊断性刮宫术后加用去氧孕烯炔雌醇和米非司酮治疗围绝经期功能失调性子宫出血的临床效果。方法将103例确诊为围绝经期功能性子宫出血并伴有不同程度内膜增厚患者随机分为两组,分别服用去氧孕烯炔雌醇和米非司酮3个月进行治疗。治疗前后均检测血、尿常规,肝功能及血糖、血脂,卵泡刺激素、黄体生成素、雌二醇(E2)、孕酮(P)、泌乳素(PRL)和雄激素(T)。结果两组患者治疗1疗程后,贫血均有不同程度的改善,治疗后血E2、P平均水平均较用药前下降明显,差异具有统计学意义(P<0.05),而FSH、LH、PRL、T用药前后变化不明显。结论去氧孕烯炔雌醇及米非司酮对于围绝经期功能性子宫出血均有良好的临床疗效,不良反应小、经济、复发率低,是两种比较理想的药物治疗方案。     

脑源性神经营养因子调控人黄素化颗粒细胞甾体激素合成

目的 探讨脑源性神经营养因子(BDNF)对人黄素化颗粒细胞分泌雌激素和孕激素及甾体生成急性调控蛋白(STAR)的影响。方法 黄素化壁层颗粒细胞来自进行体外受精-胚胎移植的26例患者,年龄26~30岁,均为输卵管因素和男性因素不孕者。利用原代培养细胞技术培养人黄素化颗粒细胞,分别加入不同浓度的BDNF,收集细胞培养上清液,检测雌二醇和孕酮浓度。用RT-PCR检测黄素化颗粒细胞中STARmRNA表达的变化。结果 BDNF可抑制人黄素化壁层颗粒细胞分泌孕激素,呈浓度依赖性,但BDNF浓度超过50ng/ml时抑制作用不再增强。BDNF对人黄素化壁层颗粒细胞合成雌二醇的浓度无明显影响。BDNF可降低STARmRNA表达,呈浓度依赖性。结论 BDNF可调节人黄素化卵巢颗粒细胞合成孕酮,是重要的卵巢内调节因子。BDNF可能通过抑制STARmRNA的表达以减少孕酮的生成并参与黄体的退化过程。