Lactose-riched Mongolian mare's milk improves physical fatigue and exercise performance in mice

Fatigue may cause the efficiency of the organ in human body to decrease, which may affect the daily life and exercise performance of the general people and athletes. Mare''s milk powder (MMP) is a lactose rich supplement. The research of the study is to evaluate the whether MMP has anti-fatigue effect. Forty male ICR mice were randomly divided into four group to receive vehicle or MMP by oral gavage at 0 (Vehicle), 0.27 (MMP-1X), 0.54 (MMP-2X), 1.35 (MMP-5X) g/kg/day for 14 days. The forelimb grip of the MMP-2X, and MMP-5X group were significantly higher than the vehicle group. The swim-to-exhaustion times of the MMP-1X, MMP-2X, and MMP-5X group were significantly greater than the vehicle group. Glycogen levels in liver and muscle were significantly larger in the MMP-1X, MMP-2X, and MMP-5X groups than the vehicle group. Receive MMP supplement for 14 days can promoting exercise performance and amelioration of exercise-induced fatigue.     

红景天苷衍生物的合成及其抗疲劳活性研究

目的 设计并合成系列4-取代的新型红景天苷衍生物并研究其抗疲劳作用。方法 通过五乙酰基葡萄糖与不同的4-取代苄基酪醇,经过糖苷化、脱乙酰基合成红景天苷衍生物;采用小鼠负重游泳为实验模型,通过观察测定小鼠的负重游泳时间研究合成衍生物的抗疲劳作用。结果 合成了10个新型红景天苷衍生物;小鼠负重游泳实验显示：阳性对照组（红景天苷）和3a-1组（苯乙基-β-D-葡萄糖苷）的小鼠游泳时间明显高于空白对照组（P<0.05）,差异有统计学意义;其余组均与空白对照组小鼠负重游泳时间相近,差异无统计学意义。结论 本实验设计的红景天苷衍生物合成方法简便、可行;红景天苷及其衍生物苯环上的4位羟基可能与其抗疲劳活性密切相关。     

鳕鱼肉酶解产物对小鼠抗疲劳和体内抗氧化作用

目的：研究鳕鱼肉酶解产物的抗疲劳和体内抗氧化作用。方法：以阿拉斯加狭鳕鱼肉为原料,经菠萝蛋白酶和风味蛋白酶分步酶解,通过离心、喷雾干燥等工艺制得鳕鱼肉酶解产物。测定酶解产物的氨基酸组成;给小鼠灌胃不同剂量的酶解产物,测定小鼠力竭游泳时间,肝糖原含量,血清中乳酸、尿素氮、丙二醛含量以及超氧化物歧化酶、谷胱甘肽过氧化物酶和过氧化氢酶活力。结果：酶解产物能显著延长小鼠的游泳时间,与空白对照组相比,低、中、高剂量组能够降低小鼠体内乳酸、血尿素氮和丙二醛含量,提高小鼠体内肝糖原含量,且能够提高小鼠体内超氧化物歧化酶、谷胱甘肽过氧化物酶和过氧化氢酶的活力。结论：酶解产物具有较好的抗疲劳和体内抗氧化作用。     

锁阳药理作用的研究进展

锁阳为我国传统补肾类中药,是锁阳科植物锁阳Cynomorium songaricum Rupr.的肉质茎。锁阳中含有多种化学成分,具有增强组织耐低氧能力、抗疲劳、保肝护肝、抗骨质疏松及对神经系统的保护等多种药理作用。综述了锁阳药理作用的研究进展,为今后锁阳的进一步研究提供参考。     

杜仲补天素片对雄性动物促生育作用的研究

目的对杜仲补天素片药效进行二次开发,新增其治疗男性不育症的功效,为其临床用于治疗男性不育症提供实验基础。方法将雄性小鼠随机分为杜仲补天素片高、中、低剂量(0.72、0.36、0.18 g/kg)组,对照组,阳性药生精胶囊组,观察各组雄性小鼠免疫器官及性腺器官脏器指数、抗疲劳作用、生育力作用。将雄性SD大鼠随机分为杜仲补天素片高、中、低剂量(0.504、0.252、0.126 g/kg)组、对照组,模型组,阳性药生精胶囊组,观察各组雄性大鼠脏器指数、睾丸病理结构的变化,测定各组雄性大鼠血清性激素水平及血清氧化反应指标以及生育力;进行HE染色,观察各组雄性大鼠的睾丸形态学结构。结果杜仲补天素片通过提高幼龄雄性小鼠免疫功能和性腺器官脏器指数,延长游泳存活时间,具有抗疲劳作用,从而促使雌性小鼠受孕率上升。通过增加模型大鼠的体质量,提高性器官及肾脏指数,增加血清性激素促卵泡激素(FSH)、促黄体激素(LH)、睾酮(T)、雌二醇(E2)的量,降低血清丙二醛(MDA)量,提高血清超氧化物歧化酶(SOD)、谷胱甘肽过氧化物酶(GSH-Px)水平,产生抗氧化损伤作用并改善睾丸病理形态损伤,从而促使雌性大鼠受孕率及平均产仔数上升,发挥抗腺嘌呤致大鼠生精功能障碍作用。结论杜仲补天素片对雄性动物具有促生育、改善生育及逆转受损生殖能力的作用,为杜仲补天素片的临床应用提供实验基础。     

亚麻籽对运动训练大鼠睾酮及相关激素含量和抗运动疲劳能力的影响

目的:研究亚麻籽对运动训练大鼠睾酮及相关激素含量和抗疲劳能力的影响。方法:以大强度耐力训练大鼠为模型,55只42 d龄雄性SPF级Wistar大鼠为对象,以数字随机分组法分为5组:静止组(C组)、运动组(M组)、运动+亚麻籽(FM)Ⅰ组(FMⅠ组),运动+亚麻籽Ⅱ组(FMⅡ组),运动+亚麻籽Ⅲ组(FMⅢ组),各组均为10只。每天ig 1次,亚麻籽组剂量分别为0.75,1.5,4.5 g·kg-1,ig体积为5 m L·kg-1,C,M组ig等量生理盐水。力竭游泳训练42 d后,分别测定各组大鼠体重、力竭游泳时间和血清睾酮等相关生化指标。结果:体重M组C组(P0.05);FM各组体重均M组(P0.05),且FM组间无显著差异。力竭游泳时间,M组与C组无明显差异;FM各组明显长于M组(P0.01)。血清睾酮水平,M组低于C组(P0.01);FM各组均高于M组(P0.01),分别为(4.83±1.15),(4.93±1.13),(5.11±1.12)nmol·L-1,且组间无显著差异。血清皮质酮水平,C,M,FM各组间无显著差异。血清睾酮与皮质酮比值变化与睾酮变化较为一致。血清促黄体生成素、促卵泡激素水平,C组高于M组,但无显著差异;FM各组高于M组(P0.05),且FM各组组间无显著差异。结论:补充亚麻籽可以纠正由于运动导致的下丘脑-垂体-性腺轴功能的紊乱,有效预防血清睾酮水平的降低,进而增强抗疲劳能力。     

牛蒡子对运动训练大鼠睾酮及相关激素含量和抗运动疲劳能力的影响

目的:研究牛蒡子对运动训练大鼠睾酮及相关激素含量和抗疲劳能力的影响。方法:以大强度耐力训练大鼠为模型,55只42 d龄雄性Wistar大鼠为对象,随机分为5组:静止组(C组)、运动组(M组)、运动+低剂量牛蒡子组(AML组),运动+中剂量牛蒡子组(AMM组),运动+高剂量牛蒡子组(AMH组),每组10只(剔除不符合实验要求的大鼠5只)。每天灌胃ig给药1次,牛蒡子组剂量分为0.5,1,3 g·kg-1,ig体积为5 m L·kg-1,C,M组ig等量生理盐水。42 d力竭游泳训练后,测定体重、力竭游泳时间及血睾酮等生化指标。结果:体重,运动组小于静止组(P<0.05);牛蒡子各组>运动组(P<0.05)。力竭游泳时间,运动组与静止组无明显差异;牛蒡子各组明显长于运动组(P<0.01),且随剂量增大而延长。血清睾酮水平,运动组为(3.51±1.46)nmol·L-1低于静止组(P<0.01);牛蒡子低、中、高剂量组分别为(4.85±1.54),(4.97±1.47),(5.07±1.56)nmol·L-1,高于运动组(P<0.01)。血清皮质酮水平,各组间均无显著差异。血清睾酮与皮质酮比值变化与睾酮变化较为一致。血清促黄体生成素、促卵泡激素水平,静止组与运动组无显著差异;牛蒡子各组高于运动组(P<0.05)。结论:补充牛蒡子可以从多靶点、多途径纠正由于运动导致的下丘脑-垂体-性腺轴功能的紊乱,有效预防血清睾酮水平的降低,进而增强抗疲劳能力。     

Metabolomics Analysis of Health Functions of PhysalisPubescens L. using by Ultra-performance LiquidChromatography/Electrospray Ionization QuadrupleTime-of-Flight Mass Spectrometry

Herbal medicines may benefit from metabolomics studies, and applying metabolomics may provide answers about which herbal interventions may be effective for individuals, which metabolic processes are triggered, and the subsequent chemical pathways of activity. Physalis pubescens L (PPL) is an herbal fruit for one year living plant and has been developed into healthy function’s food. However, the mechanisms of health functions are still unclear. To comprehensively and holistically assess its anti-fatigue and antioxidant effects, a novel integrative metabolomics approach was applied. In this study, we present metabolomics analysis applying ultra performance liquid chromatography coupled to quadrupole with time-of-flight mass spectrometry (UPLC-Q/TOF-MS) to determine metabolite alterations after oral administration PPL to rats. Fifteen metabolites in urine were identified as potential biomarkers. Pattern analysis of the UPLC-Q/TOF-MS data disclosed that PPL could relieve fatigue rats by ameliorating the disturbance in amino acids metabolism and energy metabolism, alleviating the oxidative stress from reactive oxygen species and the inflammatory damage, and recovering the destructed regulation. Based on these results, we demonstrated that PPL is a promising source of natural anti-fatigue and antioxidants material for use in functional foods and medicines.     

Antioxidant and Antifatigue Activities of Polygonatum Alte-lobatum Hayata Rhizomes in Rats

Polygonatum alte-lobatum Hayata, a rhizomatous perennial herb, belongs to the Liliaceae family and is endemic to Taiwan. We investigated the antioxidant and anti-fatigue activities of P. alte-lobatum in exercised rats. Levels of polyphenols, flavonoids and polysaccharides and 2,2-diphenyl-1-picrylhydrazyl (DPPH) free-radical scavenging activity were measured in extracts of P. alte-lobatum (EPA). Sprague-Dawley rats were randomly divided into four groups for 8-week treatment with vehicle (control) and low-, medium-, and high-dose EPA (LEPA, MEPA, HEPA; 0, 75, 150, and 375 mg/kg/day, respectively). Exercise performance was evaluated by exhaustive treadmill exercise time and by changes in body composition and biochemical variables at the end of the experiment. EPA contained polyphenols, flavonoids and polysaccharides, with polysaccharide content at least 26 times greater than that of polyphenols and flavonoids. Trend analysis revealed that EPA dose-dependently scavenged DPPH free radicals. EPA treatment dose-dependently increased endurance running time to exhaustion and superoxide dismutase activity and total antioxidant ability of blood. EPA dose-dependently decreased serum urea nitrogen and malondialdehyde levels after exercise. Hepatic glycogen content, an important energy source for exercise, was significantly increased with EPA treatment. EPA could be a potential agent with an anti-fatigue pharmacological function.     

枳椇子提取物对大鼠抗疲劳作用的比较

目的研究枳椇子乙酸乙酯萃取物对跑台运动大鼠的抗疲劳作用,并比较枳椇子乙酸乙酯萃取物和枳椇子水提醇沉提取物的抗疲劳作用。方法除正常组外,所有实验动物每天进行30 min速度为15 m/min的跑台训练,连续7 d;同时分别灌胃给予枳椇子乙酸乙酯萃取物水混悬液4、8、12 mg/(kg.d);枳椇子水提醇沉提取物水混悬液300 mg/(kg.d);诺迪康胶囊280 mg/(kg.d)(阳性药物组);模型组与对照组分别灌胃给予等体积饮用水(10 ml/kg),连续7 d;于第8天进行1 h速度为25 m/min的跑台运动;跑台结束后,立即采集血液、肝脏、肌肉和脑组织,检测血清肌酸激酶、血清乳酸脱氢酶、血清乳酸、血清乙酰胆碱酯酶、血清尿素氮、血清总抗氧化力、血糖、血红蛋白、脑超氧化物歧化酶、脑丙二醛、肝糖原、肌糖原等指标。结果模型组与对照组比较,各检测指标有显著性差异;枳椇子乙酸乙酯萃取物给药组大鼠的各项指标得到明显改善,中、高剂量组各项指标改善状况优于枳椇子水提醇沉组。结论枳椇子乙酸乙酯萃取物对跑台运动大鼠具有显著的抗疲劳作用,并优于枳椇子水提醇沉物。