北京体育大学学报
北京體育大學學報
북경체육대학학보
Journal of Beijing University of Physical Education
2006年
12期
1672~1674
,共null页
练艺影 曹建民 邓艳香 石鸿儒
練藝影 曹建民 鄧豔香 石鴻儒
련예영 조건민 산염향 석홍유
肌酸 磷酸肌酸 转运体 代谢 药物代谢动力学 运动
肌痠 燐痠肌痠 轉運體 代謝 藥物代謝動力學 運動
기산 린산기산 전운체 대사 약물대사동역학 운동
creatine ; transporters ; metabolism ; pharmacokinetics ; exercises
现已发现肌酸进行跨膜转运需要相应的转运体(包括细胞膜运载体和线粒体运载体)是肌酸在体内分布的关键因素之一;肌酸的转运与转运体的数量及其表达、骨骼肌纤维的类型、Na^+和Cl^-浓度、激素、运动等多因素相关;肌酸在机体内代谢并分解为肌酸酐并且经肾脏排除体外;肌酸代谢动力学研究涉及到血药最大浓度(Cmax)和达到最大浓度的时间(Tmax)等动力学参数。
現已髮現肌痠進行跨膜轉運需要相應的轉運體(包括細胞膜運載體和線粒體運載體)是肌痠在體內分佈的關鍵因素之一;肌痠的轉運與轉運體的數量及其錶達、骨骼肌纖維的類型、Na^+和Cl^-濃度、激素、運動等多因素相關;肌痠在機體內代謝併分解為肌痠酐併且經腎髒排除體外;肌痠代謝動力學研究涉及到血藥最大濃度(Cmax)和達到最大濃度的時間(Tmax)等動力學參數。
현이발현기산진행과막전운수요상응적전운체(포괄세포막운재체화선립체운재체)시기산재체내분포적관건인소지일;기산적전운여전운체적수량급기표체、골격기섬유적류형、Na^+화Cl^-농도、격소、운동등다인소상관;기산재궤체내대사병분해위기산항병차경신장배제체외;기산대사동역학연구섭급도혈약최대농도(Cmax)화체도최대농도적시간(Tmax)등동역학삼수。
The result shows that it is known that there are two main kinds of Cr transporters (CrTs), one is plasmalemma CrT and the other is mitochondrial CrT which affects the distribution of Cr. Cr uptake across the plasma membrane by CrT relating to the quantity of CrT and its expression, different skeletal muscle fiber types, the of Na ^+ and Cl^-, hormone, exercises and so on. Cr is converted into creatiulne(Crn) that constantly diffuses out of the tissues into the blood and is excreted by the kidneys into the urine. Some researches on pharmacokinetics has examined the behaviors of Cr in blood, such as a concentration of maximal plasma (Cmax) and a time of maximal plasma (Tmax).