Sarcomerogenesis,the addition of serial sarcomeres in skeletal muscle myofibrils and fibres,is a natural occurrence during growth and maturation of animals,including humans.However,the detailed mechanisms that allow f...Sarcomerogenesis,the addition of serial sarcomeres in skeletal muscle myofibrils and fibres,is a natural occurrence during growth and maturation of animals,including humans.However,the detailed mechanisms that allow for sarcomerogenesis are not fully understood.In some diseases,such as cerebral palsy in children,sarcomerogenesis appears to be inhibited or at least reduced,1,2 often causing severe restrictions in muscle and joint function.展开更多
Exercise,as a non-pharmacological health intervention,has been widely recognized for its beneficial effects,yet its underlying molecular mechanisms remain incompletely understood.The duration,frequency,and intensity o...Exercise,as a non-pharmacological health intervention,has been widely recognized for its beneficial effects,yet its underlying molecular mechanisms remain incompletely understood.The duration,frequency,and intensity of exercise exert distinct physiological impacts on the human body[1].Notably,acute exercise(AE)primarily elicits immediate metabolic responses and immune activation to cope with environmental stimuli,whereas long-term exercise(LE)induces cumulative health benefits across multiple organ systems[2‒4].Aging represents a complex biological process that persists throughout the ontogenetic continuum and serves as a pivotal etiological determinant for numerous chronic pathologies.In the context of accelerating global demographic aging,the development of interventions to promote healthspan extension and modulate aging trajectories has become a paramount research imperative in geroscience.Currently,research on the relationship between exercise and aging is a hot topic.For example,exercise has been shown to modulate aging through pathways such as AMP-activated protein kinase(AMPK)[5].However,the precise molecular links remain elusive.In a recent breakthrough study,Geng et al.used a novel multi-omics strategy to pinpoint betaine,a glycine derivative from choline/diet that serves as both a hepatic methyl donor and a renal osmoprotectant,as a key exercise-induced molecule with anti-inflammatory and geroprotective effects mediated partially via TANK-binding kinase 1(TBK1)inhibition[6,7].This work represents a significant advance as it systematically maps the molecular divergence between acute and long-term exercise while establishing a direct link between renal metabolism and systemic senescence-delaying benefits.展开更多
文摘Sarcomerogenesis,the addition of serial sarcomeres in skeletal muscle myofibrils and fibres,is a natural occurrence during growth and maturation of animals,including humans.However,the detailed mechanisms that allow for sarcomerogenesis are not fully understood.In some diseases,such as cerebral palsy in children,sarcomerogenesis appears to be inhibited or at least reduced,1,2 often causing severe restrictions in muscle and joint function.
基金funded by the National Natural Science Foundation of China(grant numbers 32371244 and 92057118 to M.H.)the 2023 Shanghai Eastern Talent Plan Leading Project(to M.H.)+2 种基金supported by the innovative research team of high-level local universities in Shanghai(grant numbers SHSMUZDCX20212000 and SHSMU-ZDCX20211202 to M.H.)the Shanghai Frontiers Science Center of Cellular Homeostasis and Human Diseases,and the Fundamental Research Funds for the Central Universities to M.H.labsupported by the Natural Science Foundation of Guangxi Zhuang Autonomous Region(grant number 2025GXNSFAA069105 to M.H.)。
文摘Exercise,as a non-pharmacological health intervention,has been widely recognized for its beneficial effects,yet its underlying molecular mechanisms remain incompletely understood.The duration,frequency,and intensity of exercise exert distinct physiological impacts on the human body[1].Notably,acute exercise(AE)primarily elicits immediate metabolic responses and immune activation to cope with environmental stimuli,whereas long-term exercise(LE)induces cumulative health benefits across multiple organ systems[2‒4].Aging represents a complex biological process that persists throughout the ontogenetic continuum and serves as a pivotal etiological determinant for numerous chronic pathologies.In the context of accelerating global demographic aging,the development of interventions to promote healthspan extension and modulate aging trajectories has become a paramount research imperative in geroscience.Currently,research on the relationship between exercise and aging is a hot topic.For example,exercise has been shown to modulate aging through pathways such as AMP-activated protein kinase(AMPK)[5].However,the precise molecular links remain elusive.In a recent breakthrough study,Geng et al.used a novel multi-omics strategy to pinpoint betaine,a glycine derivative from choline/diet that serves as both a hepatic methyl donor and a renal osmoprotectant,as a key exercise-induced molecule with anti-inflammatory and geroprotective effects mediated partially via TANK-binding kinase 1(TBK1)inhibition[6,7].This work represents a significant advance as it systematically maps the molecular divergence between acute and long-term exercise while establishing a direct link between renal metabolism and systemic senescence-delaying benefits.
