背景:丙酮酸钙对减轻体质量有明显效果,壳聚糖具有调节免疫、促骨骼生成、降血糖、调节血脂等多种作用,将两者配以药食同源的中药制成丙-聚胶囊,其作用效果仍需进一步观察.目的:观察丙-聚胶囊对单纯性肥胖大鼠的减肥效果,探讨其减肥机制.设计:随机对照实验.单位:西安医学院公共卫生系预防医学教研室,西安交通大学医学院公共卫生系.材料:实验于2001-04/07在西安交通大学医学院公共卫生系完成.健康雄性断乳SD大鼠60只,体质量50~80 g,由西安交通大学动物中心提供.丙-聚胶囊由作者自制,主要成分为丙酮酸钙和壳聚糖,用蒸馏水配制成混悬液与中药提取物混匀备用.方法:①动物分组及造模:60只大鼠采用随机数字表法分为5组:空白对照组,模型对照组,高剂量给药组,中剂量给药组,低剂量给药组,每组12只.空白对照组喂基础饲料,其余4组给予高脂肪高营养饲料建立营养性肥胖大鼠模型.②干预处理:空白对照组和模型对照组给予胶囊中淀粉基质与等容量蒸馏水配成的混悬液,高、中、低剂量给药组按3,1.5,0.75g/kg剂量给予丙-聚胶囊灌胃,1次/d,连续30 d.③检测项目:测量用药前后体质量、体长和脂肪湿质量,计算肥胖指数和脂/体比.400倍显微镜下计数全视野脂肪细胞数,目镜测微器测脂肪细胞的大小.7170全自动生化分析仪测定血清三酰甘油、总胆固醇、高密度脂蛋白胆固醇,血清瘦素测定按大鼠瘦素放射免疫分析试剂盒说明进行.主要观察指标:①用药前后体质量,体长和肥胖指数.②脂肪湿质量,脂/体比,脂肪细胞数和脂肪细胞的大小.③血清三酰甘油、总胆固醇、高密度脂蛋白胆固醇,血清瘦素水平.结果:60只大鼠均进入结果分析.用药前,空白对照组体质量明显低于其他4组(P<0.01),其他4组组间差异不明显(P>0.05).用药后,高、中、低剂量给药组体质量,肥胖指数,脂肪湿质量,脂/体比,血清瘦素水平均低于模型对照组(P<0.05或0.01).脂肪细胞大小小于模型对照组(P<0.05或0.01),而脂肪细胞数多于模型对照组(P<0.05或0.01),高、中剂量给药组血清三酰甘油、总胆固醇低于模型对照组(P<0.05或0.01),各组体长和高密度脂蛋白胆固醇差异不明显(P>0.05).结论:①丙-聚胶囊对营养性肥胖大鼠有明显减肥作用,该作用与促进血清瘦素分泌不相关.②丙-聚胶囊有一定的降血脂作用.
揹景:丙酮痠鈣對減輕體質量有明顯效果,殼聚糖具有調節免疫、促骨骼生成、降血糖、調節血脂等多種作用,將兩者配以藥食同源的中藥製成丙-聚膠囊,其作用效果仍需進一步觀察.目的:觀察丙-聚膠囊對單純性肥胖大鼠的減肥效果,探討其減肥機製.設計:隨機對照實驗.單位:西安醫學院公共衛生繫預防醫學教研室,西安交通大學醫學院公共衛生繫.材料:實驗于2001-04/07在西安交通大學醫學院公共衛生繫完成.健康雄性斷乳SD大鼠60隻,體質量50~80 g,由西安交通大學動物中心提供.丙-聚膠囊由作者自製,主要成分為丙酮痠鈣和殼聚糖,用蒸餾水配製成混懸液與中藥提取物混勻備用.方法:①動物分組及造模:60隻大鼠採用隨機數字錶法分為5組:空白對照組,模型對照組,高劑量給藥組,中劑量給藥組,低劑量給藥組,每組12隻.空白對照組餵基礎飼料,其餘4組給予高脂肪高營養飼料建立營養性肥胖大鼠模型.②榦預處理:空白對照組和模型對照組給予膠囊中澱粉基質與等容量蒸餾水配成的混懸液,高、中、低劑量給藥組按3,1.5,0.75g/kg劑量給予丙-聚膠囊灌胃,1次/d,連續30 d.③檢測項目:測量用藥前後體質量、體長和脂肪濕質量,計算肥胖指數和脂/體比.400倍顯微鏡下計數全視野脂肪細胞數,目鏡測微器測脂肪細胞的大小.7170全自動生化分析儀測定血清三酰甘油、總膽固醇、高密度脂蛋白膽固醇,血清瘦素測定按大鼠瘦素放射免疫分析試劑盒說明進行.主要觀察指標:①用藥前後體質量,體長和肥胖指數.②脂肪濕質量,脂/體比,脂肪細胞數和脂肪細胞的大小.③血清三酰甘油、總膽固醇、高密度脂蛋白膽固醇,血清瘦素水平.結果:60隻大鼠均進入結果分析.用藥前,空白對照組體質量明顯低于其他4組(P<0.01),其他4組組間差異不明顯(P>0.05).用藥後,高、中、低劑量給藥組體質量,肥胖指數,脂肪濕質量,脂/體比,血清瘦素水平均低于模型對照組(P<0.05或0.01).脂肪細胞大小小于模型對照組(P<0.05或0.01),而脂肪細胞數多于模型對照組(P<0.05或0.01),高、中劑量給藥組血清三酰甘油、總膽固醇低于模型對照組(P<0.05或0.01),各組體長和高密度脂蛋白膽固醇差異不明顯(P>0.05).結論:①丙-聚膠囊對營養性肥胖大鼠有明顯減肥作用,該作用與促進血清瘦素分泌不相關.②丙-聚膠囊有一定的降血脂作用.
배경:병동산개대감경체질량유명현효과,각취당구유조절면역、촉골격생성、강혈당、조절혈지등다충작용,장량자배이약식동원적중약제성병-취효낭,기작용효과잉수진일보관찰.목적:관찰병-취효낭대단순성비반대서적감비효과,탐토기감비궤제.설계:수궤대조실험.단위:서안의학원공공위생계예방의학교연실,서안교통대학의학원공공위생계.재료:실험우2001-04/07재서안교통대학의학원공공위생계완성.건강웅성단유SD대서60지,체질량50~80 g,유서안교통대학동물중심제공.병-취효낭유작자자제,주요성분위병동산개화각취당,용증류수배제성혼현액여중약제취물혼균비용.방법:①동물분조급조모:60지대서채용수궤수자표법분위5조:공백대조조,모형대조조,고제량급약조,중제량급약조,저제량급약조,매조12지.공백대조조위기출사료,기여4조급여고지방고영양사료건립영양성비반대서모형.②간예처리:공백대조조화모형대조조급여효낭중정분기질여등용량증류수배성적혼현액,고、중、저제량급약조안3,1.5,0.75g/kg제량급여병-취효낭관위,1차/d,련속30 d.③검측항목:측량용약전후체질량、체장화지방습질량,계산비반지수화지/체비.400배현미경하계수전시야지방세포수,목경측미기측지방세포적대소.7170전자동생화분석의측정혈청삼선감유、총담고순、고밀도지단백담고순,혈청수소측정안대서수소방사면역분석시제합설명진행.주요관찰지표:①용약전후체질량,체장화비반지수.②지방습질량,지/체비,지방세포수화지방세포적대소.③혈청삼선감유、총담고순、고밀도지단백담고순,혈청수소수평.결과:60지대서균진입결과분석.용약전,공백대조조체질량명현저우기타4조(P<0.01),기타4조조간차이불명현(P>0.05).용약후,고、중、저제량급약조체질량,비반지수,지방습질량,지/체비,혈청수소수평균저우모형대조조(P<0.05혹0.01).지방세포대소소우모형대조조(P<0.05혹0.01),이지방세포수다우모형대조조(P<0.05혹0.01),고、중제량급약조혈청삼선감유、총담고순저우모형대조조(P<0.05혹0.01),각조체장화고밀도지단백담고순차이불명현(P>0.05).결론:①병-취효낭대영양성비반대서유명현감비작용,해작용여촉진혈청수소분비불상관.②병-취효낭유일정적강혈지작용.
BACKGROUND: Calcium pyruvate has great effect on reducing body mass, and chitosan can regulate immunity system, promote bone growth, decrease blood sugar and adjust blood lipid. Calcium pyruvate and chi tosan capsule (CCC) was made by calcium pyruvate and chitosan combined with Chinese medicine, which can be used both as food and medicine. However, its effect still needs further observation. OBJECTIVE: To investigate the weight-reducing effect of CCC on obesity rats, and explore its mechanism.DESIGN: A randomized controlled trial.SETTING: Teaching and Research Section of Preventive Medicine, Department of Public Health, Xi'an Medical College, and Department of Public Health, Medical School of Xi' an Jiaotong University.MATERIALS: The experiment was conducted in the Department of Public Health, Medical School of Xi'an Jiaotong University from April to July 2001. Totally 60 healthy male weaning SD rats with body mass of 50-80 g,were provided by the Animal Center of Xi'an Jiaotong University. CCC,mainly composed of calcium pyruvate and chitosan, mixed with Chinese medicine extract after prepared with distilled water, was made by the author.METHODS: ①Grouping and modeling: The 60 rats were randomly divided into 5 groups: blank control group, model control group, high, middle and low dose CCC supplement groups, respectively with 12 rats in each group. The rats in the blank control group were fed w ith basal diet; the other groups were fed with high fat and nutrition diet to establish rat models of nutritional obesity. ②Administration: The rats in the blank and model control groups were given suspension mixed with starch matrix in capsule and distilled water at same dose. The rats in the high, middle and low dose CCC groups were intragastrically infused with 3, 1.5 and 0.75 g/kg CCC, once aily for 30 days. ③Detection: Body mass, body length and wet weight of fat tissue were measured before and after administration to calculate the obese index and ratio of fat weight/body mass. The adipocyte number and adipocyte size were observed by 400-fold microscope and ocular micrometer, respectively. The detection of serum triglyceride (TG), total cholesterol (TC), high density lipoprotein cholesterol (HDL-C) and serum leptin levels were performed according to the leptin radioimmunity analyzer kit.MAIN OUTCOME MEASURES: ①Body mass, body length and obesity index before and after administration. ②Wet weight of fat, fat/body mass,adipocyte number and size. ③TG, TC, HDL-C and serum leptin.RESULTS: All the 60 rats were involved in the result analysis. Before administration, the body mass of the blank control group was obviously lower than other 4 groups (P < 0.01), and there was no significant difference among the 4 groups (P > 0.05). After administration, the mean body mass,obesity index, wet weight of fat tissue, ratio of fat/body mass and leptin level of the high, middle and low CCC groups were lower than the model group (P < 0.05 or 0.01), and the adipocyte size were significantly smaller than those in the model group (P < 0.05 or 0.01), but the adipocyte number was more than the model group (P < 0.05 or 0.01). Meanwhile, level of TG and TC of the high and middle dose CCC groups were lower than the model group (P < 0.05 or 0.01), there was no significant difference in the body length and HDL-C of each group.CONCLUSION: ①CCC shows evident weight-reducing effect on rats with nutritional obesity, which is not related to the ability of CCC to enhance the serum leptin level. ②CCC can also lower the blood lipid level.