共查询到18条相似文献,搜索用时 62 毫秒
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目的为验证某保健食品对人体缓解视疲劳的作用。方法依据卫生部《保健食品检验与评价技术规范》(2003年版),对该保健食品进行了为期35d的人体试食试验的效果评价。结果试验组左右眼远视力均比试食前有所改善,差异有统计学意义(P<0.05);对照组试食后左右眼远视力与试食前比较差异无统计学意义(P>0.05)。试食后试验组明视持久度提高了0.12±0.13,试食后试验组明视持久度与对照组进行比较差异有统计学意义(P<0.01);试验组的眼部症状积分由服用受试物前的3.92±1.94降低至服用后的2.25±1.86,前后比较差异有统计学意义(P<0.01);试食后试验组眼部症状积分与对照组(3.35±1.85)比较差异有统计学意义(P<0.01)。试验组总有效率(49.02%)高于对照组的(3.92%)(P<0.05)。结论试验证实该保健食品对人体具有缓解视疲劳功能的作用。 相似文献
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青棠胶囊是由纯蚕蛹粉制成 ,据报道纯蚕蛹粉中含有类胰岛素生长因子簇 (IGFs ,内容物以IGF -I含量为标准 ) ,每公斤纯蚕蛹粉中类胰岛素生长因子簇的含量为 10 0 -2 5 0g。许多动物试验证实蚕蛹具有调节血糖的保健功能。本研究为人群的试食试验 ,结果如下 :1 材料与方法1 1 受试样品 青棠胶囊由镇江可尔健生物制品有限公司提供。将冻存的蚕蛹粉碎、碾磨、喷雾干燥后灌装成胶囊。1 2 试食方法 选择 66例Ⅱ型糖尿病病人 ,其中男性 3 2人 ,女性 3 4人。年龄范围为 3 8岁~ 74岁。无严重心、肝、肾等并发症 ,随机分为试食组 ( 3 3例 )… 相似文献
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芦荟胶囊通便功能的人体试食研究 总被引:1,自引:0,他引:1
[目的]观察芦荟胶囊的通便功能。[方法]采用双盲法将120例受试者按其便秘症状随机分为试食组和对照组,试食样品组服用受试样品,对照组服用与受试样品外观相似的安慰剂,连续服用7d后,观察两组排便次数、排便状况和粪便性状的变化。[结果]对照组试食前后排便次数分别为2.13和2.11次/周,排便状况积分分别为1.56和1.58分,粪便性状积分分别为1.79和1,64分,差别均无统计学意义;试食样品组试食前后排便次数分别为2.13和4.09次/周,排便状况积分分别为1.57和0.61分,粪便性状积分分别为1.83和0.63分,差别均有统计学意义(P〈0.01);试食后试食样品组与对照组的排便次数、排便状况和粪便性状差别均有统计学意义(P〈0.01)。对照组和试食样品组试验前后未见不良反应,各项安全性指标均未见异常。[结论]芦荟胶囊对人体具有明显通便功能,且对机体健康无不良影响。 相似文献
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以双盲法~(60)Co辐照蘑菇(吸收剂量为1.0KGY)对19名志愿者(男9名女10名)年龄21~40岁,进行了人体试食试验。将受试者按性别、年龄随机配对分成试验组和对照组,每日食用蘑菇250g,试验期28天,在此之前14天适应期食用非辐照蘑菇。辐照蘑菇在室温储存24小时后食用。试食期没有不良影响,对造血、肝、肾功能、血脂、血糖和内分泌功能试验组与对照相比两组没有显著性差异。外周淋巴细胞染色体畸变分析表明:试验组女性试食后染色体畸变率明显增加,而对照组与试食组于试食期后两组相比亦有明显差异。然而,染色体畸变率偏低,且均在正常范围内。同时,受试人数较少,因此所观察到的畸变率增加可能由于分析的系统误差所致,并非辐照蘑菇所致。 相似文献
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Machiko Suganuma Alice R. Rumbold Jacqueline Miller Yan Fong Chong Carmel T. Collins 《Nutrients》2021,13(6)
Human milk (HM) is the gold standard for feeding infants but has been associated with slower growth in preterm infants compared with preterm formula. This systematic review and meta-analysis summarises the post-1990 literature to examine the effect of HM feeding on growth during the neonatal admission of preterm infants with birth weight ≤1500 g and/or born ≤28 weeks’ gestation. Medline, PubMed, CINAHL, and Scopus were searched, and comparisons were grouped as exclusive human milk (EHM) vs. exclusive preterm formula (EPTF), any HM vs. EPTF, and higher vs. lower doses of HM. We selected studies that used fortified HM and compared that with a PTF; studies comparing unfortified HM and term formula were excluded. Experimental and observational studies were pooled separately. The GRADE system was used to evaluate risk of bias and certainty of evidence. Forty-four studies were included with 37 (n = 9963 infants) included in the meta-analyses. In general, due to poor quality studies, evidence of the effect of any HM feeds or higher versus lower doses of HM was inconclusive. There was a possible effect that lower doses of HM compared with higher doses of HM improved weight gain during the hospital admission, and separately, a possible effect of increased head circumference growth in infants fed EPTF vs. any HM. The clinical significance of this is unclear. There was insufficient evidence to determine the effects of an exclusive HM diet on any outcomes. 相似文献
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Nikolaos G. Papadopoulos Theodor A. Balan Liandre F. van der Merwe Wei Wei Pang Louise J. Michaelis Lynette P. Shek Yvan Vandenplas Oon Hoe Teoh Alessandro G. Fiocchi Yap Seng Chong 《Nutrients》2022,14(11)
‘Mixed Milk Feeding’ (MMF), whereby infants are fed with both breastmilk and infant formula during the same period, is a common feeding practice. Despite its high prevalence, knowledge regarding MMF practices and their association with (health) outcomes is limited, potentially because MMF behaviours are highly variable and difficult to standardise longitudinally. In this paper, we applied a statistical clustering algorithm on individual infant feeding data collected over the first year of life from two clinical trials: ‘TEMPO’ (n = 855) and ‘Venus’ (n = 539); these studies were conducted in different years and world regions. In TEMPO, more than half of infants were MMF. Four distinct MMF clusters were identified: early exclusive formula feeding (32%), later exclusive formula feeding (25%), long-term MMF (21%), and mostly breastfeeding (22%). The same method applied to ‘Venus’ resulted in comparable clusters, building trust in the robustness of the cluster approach. These results demonstrate that distinct MMF patterns can be identified, which may be applicable to diverse populations. These insights could support the design of future research studying the impact of infant feeding patterns on health outcomes. To standardise this in future research, it is important to establish a unified definition of MMF. 相似文献
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目的 了解妇女生育后喂养方式对体重变化的影响.方法 对孕期和产后4~6个月的孕产妇进行纵向追踪调查,记录体重变化情况.根据产妇在4个月内喂养婴儿的方式分为基本纯母乳喂养组、混合喂养组和人工喂养组,比较各组体重变化情况.结果 产后4个月内基本纯母乳喂养率为63.8%.人工喂养组孕期增重和产后42d、产后4~6个月时体重减少值均显著高于基本纯母乳喂养组(P均<0.01);产后4~6个月时,基本纯母乳喂养组妇女的体重和体重滞留量均显著低于人工喂养组(P均<0.05).结论 妇女产后体重滞留与采用不同的喂养婴儿方式有关,进行母乳喂养婴儿的产妇产后体重恢复较慢,但是其孕期增重、产后体重和体重滞留量都较人工喂养者轻.因此,在加强产后纯母乳喂养宣传的同时,也要加强孕前保健知识的宣传. 相似文献
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目的探讨低出生体重儿胃肠内喂养的合理方式。方法将106例低出生体重儿随机分成2组。A组:温开水、5%葡萄糖水和1:1稀释早产奶各喂养3次,每次间隔3小时;B组:温开水、5%葡萄糖水和1:1稀释早产奶各喂养6次,每次间隔3小时。所有病例如无不耐受予喂养普通配方奶。观察每组患儿发生腹胀、呕吐、胃出血、平均住院时间以及体重增长情况。结果与B组相比,A组患儿腹胀、呕吐、胃出血发生率低(P〈0.05),平均住院时间较短(P〈0.05),体重增长较快(P(0.05),其差异均有显著统计学意义。结论采用温开水、糖水和稀释奶各喂养3次的方式喂养有利于促进喂养耐受性,是低出生体重儿喂养不耐受较合理的喂养方式。 相似文献
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[目的]研究某减肥软胶囊的减肥功能。[方法]采用预防肥胖模型法,设空白对照组、模型对照组和3个受试样品组。受试样品的人体推荐量为每天2g/60kg体重,动物实验剂量设置为0.17、0.33、1.00g/kg·bw组,分别相当于人体推荐摄入量的5、10、30倍。[结果]空白对照、模型对照、0.17、0.33、1.00g/kg·bw各组增重结果分别为:(202.0±17.3)、(250.5±17.4)、(223.0±19.0)、(225.9±16.1)、(227.2±16.2)g;体内脂结果分别为:(10.9±2.6)、(16.6±3.6)、(12.9±3.1)、(13.8±3.3)、(13.6±2.3)g。[结论]实验结果表明.经口给予大鼠某牌减肥软胶囊42d后.各组大鼠总摄食量无明显差异,低、中、高剂量组大鼠体重明显低于模型对照组(P〈O.05或P〈0.01),低剂量组能显著降低大鼠的体内脂重(P〈0.05).提示该减肥软胶囊具有一定的减肥作用。 相似文献