目的了解吉安市中学生的营养状况及其影响因素,寻找相关膳食危险因素。方法采用随机整群抽样的方法,对吉安市某中学在校800名中学生开展食物频率表膳食调查和一般情况调查,回收有效问卷信息进行分析。结果体重指数(BMI,Body Mass Index...目的了解吉安市中学生的营养状况及其影响因素,寻找相关膳食危险因素。方法采用随机整群抽样的方法,对吉安市某中学在校800名中学生开展食物频率表膳食调查和一般情况调查,回收有效问卷信息进行分析。结果体重指数(BMI,Body Mass Index)低于正常值的有130人(17.24%),高于正常值的有60人(7.96%),其中男生消瘦和超重检出率分别为12.47%、6.6%,女生检出率分别为4.77%、1.33%,多因素Logistics回归分析显示,超重、肥胖的发生与奶茶摄入频次有关(P<0.05)。结论吉安市中学生存在一定的营养状况问题,且与特定的饮食习惯有关。展开更多
Dear Editor,Physical injury and tissue damage are prevalent throughout the animal kingdom,with the ability to regenerate quickly and efficiently providing a selective advantage.In most vertebrates,skeletal muscle poss...Dear Editor,Physical injury and tissue damage are prevalent throughout the animal kingdom,with the ability to regenerate quickly and efficiently providing a selective advantage.In most vertebrates,skeletal muscle possesses a remarkable ability to regenerate,making it a valuable model for investigating the cellular processes underpinning tissue regeneration.Following damage,skeletal muscle mounts a complex regenerative cascade centered around dedicated muscle stem cells,i.e.,satellite cells.These satellite cells are,in turn,regulated by both resident and infiltrating innate immune cells of myeloid lineage,which play a crucial role in activating and guiding the transition of satellite cells towards maturation(Chen et al.,2020;Tidball,2017;Tidball&Villalta,2010).While critical for muscle regeneration,the innate immune system is energetically costly,resulting in many species decreasing immune investment under nutrient-limited environments.Whether this reduced investment results in a decreased capacity to mount a regenerative response following tissue damage remains unclear.Here,we utilized an emerging evolutionary model,the Mexican tetra(Astyanax mexicanus),to investigate the consequences of shifts in immune system investment on skeletal muscle regeneration.展开更多
文摘目的了解吉安市中学生的营养状况及其影响因素,寻找相关膳食危险因素。方法采用随机整群抽样的方法,对吉安市某中学在校800名中学生开展食物频率表膳食调查和一般情况调查,回收有效问卷信息进行分析。结果体重指数(BMI,Body Mass Index)低于正常值的有130人(17.24%),高于正常值的有60人(7.96%),其中男生消瘦和超重检出率分别为12.47%、6.6%,女生检出率分别为4.77%、1.33%,多因素Logistics回归分析显示,超重、肥胖的发生与奶茶摄入频次有关(P<0.05)。结论吉安市中学生存在一定的营养状况问题,且与特定的饮食习惯有关。
基金supported by institutional funding from the Stowers Institute for Medical Research,NIH Grant 1DP2AG071466-01,NIH Grant R01 GM127872,NSF IOS-1933428NSF EDGE Award 1923372。
文摘Dear Editor,Physical injury and tissue damage are prevalent throughout the animal kingdom,with the ability to regenerate quickly and efficiently providing a selective advantage.In most vertebrates,skeletal muscle possesses a remarkable ability to regenerate,making it a valuable model for investigating the cellular processes underpinning tissue regeneration.Following damage,skeletal muscle mounts a complex regenerative cascade centered around dedicated muscle stem cells,i.e.,satellite cells.These satellite cells are,in turn,regulated by both resident and infiltrating innate immune cells of myeloid lineage,which play a crucial role in activating and guiding the transition of satellite cells towards maturation(Chen et al.,2020;Tidball,2017;Tidball&Villalta,2010).While critical for muscle regeneration,the innate immune system is energetically costly,resulting in many species decreasing immune investment under nutrient-limited environments.Whether this reduced investment results in a decreased capacity to mount a regenerative response following tissue damage remains unclear.Here,we utilized an emerging evolutionary model,the Mexican tetra(Astyanax mexicanus),to investigate the consequences of shifts in immune system investment on skeletal muscle regeneration.
