决明子抑制营养性肥胖大鼠体重增加的作用

目的:观察大鼠生理状态下自然饮用决明子水煎剂对营养性肥胖体重的影响,并初步探讨其作用机理.方法:用高营养饲料制造肥胖大鼠模型,让大鼠在生理状态下自然饮用不同浓度的决明子水煎剂,观察其对大鼠体重和糖、脂代谢及抗脂质过氧化作用的影响.结果:6%浓度的决明子水煎剂可明显降低营养性肥胖大鼠的体重、Lee's指数、空腹血清甘油三酯、胰岛素和丙二醛含量,游离脂肪酸含量也有下降趋势,总抗氧化能力水平有升高趋势.结论:决明子水煎剂能明显抑制营养性肥胖大鼠体重的增加,其作用机理可能与其调节葡萄糖及脂肪代谢有关.     

菟丝子中槲皮素药代动力学研究

目的建立菟丝子中槲皮素的含量测定方法,研究槲皮素体内动力学规律.方法建立快速敏感的高效液相色谱-紫外检测法(HPLC-UV),以卡马西平为内标,以菟丝子灌胃给药后,大鼠含药血清样品经液-液萃取后在C18反相色谱柱上进行分离测定.结果槲皮素血药浓度在0.05～9μg/mL浓度范围内线性关系良好(r=0.9998).方法回收率为86.65～99.07%,提取回收率为79.91～84.56%,最低检测限为0.05μg/mL.结论槲皮素在大鼠体内的动力学过程表现为具吸收的二室开放模型,其中t1/2(Ab)=0.13h,t1/2(α)=0.19h,t1/2(β)=1.22h,tmax=0.333h.实验结果可为菟丝子在临床用药的安全性和有效性提供依据.     

Update on nonoxynol-9 as vaginal spermicide

Nonoxynol-9 (N-9) is a typical surfactant. For more than 30 years that very property of N-9 has been successfully exploited for its spermicidal action. It is available as an over-the-counter, locally acting vaginal spermicide. The suitability of N-9 as a spermicide is elaborated in this article. The reasons why N-9 may fail as a contraceptive are discussed. In spite of many drawbacks, which are mentioned in the article, N-9 is still often resorted to as a locally acting contraceptive. The review ends with suggestions to alter the molecular structure of N-9 and to adjust the dosages.     

淡豆豉的发酵工艺沿革及过程控制概述

通过查阅古籍及现代文献，对淡豆豉的历史演变、古今发酵工艺对比和关键环节控制进行了系统的梳理，分析并总结了淡豆豉的品质影响因素及其控制方法，以期为淡豆豉质量控制研究提供参考依据。经分析后发现，在淡豆豉的发酵过程中，发酵菌种、杂菌、温度和湿度等均为影响其品质的重要因素，“后酵”过程的条件控制更是被历代本草重点关注。此外，古代认可的“香美之豉”是以霉菌为优势菌发酵而成，发酵霉菌的选育和使用应是解决淡豆豉品质问题的要点。因此，基于历代本草所载 “香”和“美”的评价指标深入研究和优化菌种、温度、湿度等工艺条件对提高淡豆豉的品质具有重要意义。     

El entrenamiento en tapiz rodante a domicilio mejora la calidad seminal en adultos con diabetes de tipo 2

ObjectiveThis was the first study conducted to determine the influence of home-based treadmill training on seminal quality in adults with type 2 diabetes.Material and methodsSixty sedentary adults with type 2 diabetes volunteered for the current study. Thirty were randomly allocated to the intervention group and performed a a 14-week, home-based, treadmill training program, 3 sessions per week, consisting of a warm-up (10-15 min), 40 min treadmill exercise at a work intensity of 55-70% of peak heart rate (increasing by 2.5% each two weeks) measured during a maximal treadmill test, and cooling-down (5-10 min). The control group included 30, age and BMI matched adults with type 2 diabetes who did not take part in any training program. Seminal quality analysis included semen volume, sperm concentration, motility and normal morphologic features. Furthermore, total antioxidant status (TAS) as well as glutathione peroxidase (GPX) activity were assessed in seminal plasma. This protocol was approved by an Institutional Ethics Committee.ResultsThe home-based treadmill training significantly increased sperm concentration as well as percentages of total sperm motility and normal spermatozoa. Furthermore, TAS and GPX activity were increased after the completion of the training program. No significant changes in any of the measured variables were found in the control group.ConclusionsHome-based treadmill training improved seminal quality in adults with type 2 diabetes. A secondary finding was that seminal antioxidant defense system was significantly increased after being exercised.     

HPLC法同时测定菟丝子药材中酚酸和黄酮类成分含量

运用HPLC法建立同时测定菟丝子药材中酚酸类成分咖啡酸、对-香豆酸和黄酮类成分金丝桃苷、槲皮素、山奈酚的方法。结果5种成分均达到基线分离，具有良好的线性关系（r≥0.9993），平均加样回收率为96.86%~103.20%。本方法简便、准确，可同时用于菟丝子中两大类成分的含量测定。     

Anejaculation: Relevance to Sexual Enjoyment in Men and Women

IntroductionEjaculation and orgasm are important components of sexual response in men. Our understanding of both phenomena is limited. Anejaculation can be a source of substantial distress, even when procreation (ostensibly the only purpose of ejaculation itself) is not a priority.AimTo present an opinion on male perceptions of ejaculation disorders (specifically anejaculation) based on a variety of data sources, including peer-reviewed literature.MethodsA non-systematic review of literature on anejaculation and other impairments of ejaculatory and orgasmic response was conducted. Relevant articles were critically analyzed and reportedMain Outcome MeasureAn opinion is presented, based on existing data sources, on how and why ejaculation is deemed important to men and their sexual partners.ResultsThe peer-reviewed literature on disorders of ejaculation is scant; existing reports oftentimes do not adequately distinguish between orgasm and ejaculation in assessment. Men’s perceptions of ejaculation quality appear to be positively associated with satisfaction with sexual response, particularly regarding orgasm. Based on very limited data, female sexual partners of men appear to often (but not always) value the orgasmic experience of their partner; only a minority prioritize actual ejaculation. There is evidence that disorders of ejaculation may be particularly troublesome for men who have sex with men.Clinical ImplicationsThe influence of medical conditions and treatments on ejaculation should be considered in the clinical context. Psychological adaptations and interventions may be of value in some cases.Strengths & LimitationsData on the clinical relevance of anejaculation outside the context of concomitant orgasmic dysfunction are sparse. Men’s experience of orgasm is at least partially associated with ejaculation-specific variables; whether this association is mediated by psychological, physical, or a combination of factors remains unclear.ConclusionsEjaculation, orgasm, and sexual satisfaction are closely intertwined but distinct phenomena.Shindel AW. Anejaculation: Relevance to Sexual Enjoyment in Men and Women. J Sex Med 2019;16:1324–1327.     

宁泌泰胶囊治疗精液不液化症临床效果分析

目的分析宁泌泰胶囊治疗精液不液化的临床效果。方法随机选取2016年8月～2018年11月期间于本院就诊精液不液化症患者共83例为研究对象,开展临床对比研究,经随机数字表法将其分为对照组41例,观察组42例。患者入院经检查后均确诊为前列腺炎所致精液不液化症,对照组接受常规西药治疗,观察组在对照组基础上配合宁泌泰胶囊治疗。对比两组治疗前后前列腺炎指数变化、治疗后的精液液化时间变化、精液质量指标及临床疗效。结果治疗前,前列腺炎指数组间变化对比无明显差异(P0.05);经治疗后,观察组前列腺炎指数、精液液化时间、临床疗效均明显优于对照组(P0.05);观察组各项精液质量指标均明显优于对照组(P0.05)。结论临床中采用宁泌泰胶囊治疗前列腺炎引起的精液不液化症,可在有效改善前列腺炎症状、精液液化时间的同时提升患者精液质量,应用效果显著。     

不同型号大孔吸附树脂对莱菔子水提液中萝卜苷的吸附性考察

目的:研究不同型号大孔吸附树脂对莱菔子水提液中萝卜苷的纯化效果,筛选适合萝卜苷纯化的最佳型号树脂。方法:以萝卜苷的纯化效率为指标,采用高效液相色谱法测定莱菔子水提液和洗脱液中萝卜苷的含量,选择最佳型号大孔树脂。结果:X-5型大孔吸附树脂对萝卜苷的纯化率为86.2%,表明X-5型树脂更适合莱菔子中萝卜苷的纯化。萝卜苷在X-5型树脂上的吸附平衡时间为4 h。结论:采用X-5型大孔吸附树脂纯化莱菔子中萝卜苷是可行的。