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Exercise to Promote Healthy Mitochondria and Improve Lifestyle of Aging Society
Naomi X.Y. Ling(Naomi X.Y. Ling ) 대한운동학회 2023 아시아 운동학 학술지 Vol.25 No.2
Mitochondria produce ATP that provides readily releasable energy to cells [1]. In or- der to maintain proper function, the mitochondrial network undergoes fission to separate damaged mitochondrial fragments from the healthy, and fusion to reduce mitochondrial dysfunction [2,3]. Dynamin-related proteins that are known to regulate mitochondrial fusion include Mitofusin 1 (Mfn1), Mitofusin 2 (Mfn2) and Optic atrophy gene 1 (Opa1), whereas the major effector of fission is Dynamin-related protein 1 (Drp1) which has been most frequently associated with pathological conditions [4]. During aging, mitochondrial performance declines as the balance between fusion and fission is often compromised [5,6]. This imbalance has been implicated in neurode- generative diseases [6], sarcopenic muscles [2] and various other pathological conditions [2,4]. Exercise has been reported to increase mitochondrial biogenesis, remove damaged mitochondria, stimulate mitochondrial function [5,7] and delay aging associated decline in physical fitness [8-10] and cognitive function [11). Exercise in the elderly has also been reported to improve mitochondrial efficiency as observed with the increase in Ser637 phosphorylation in Drp1 [12]. Therefore, promoting exercise is a promising strategy to improve lifestyle of the cur- rent aging society, requiring further research to better understand the mechanisms of mi- tochondrial dynamics.
mTORC1 directly inhibits AMPK to promote cell proliferation under nutrient stress
( Naomi X. Y. Ling ),( Adriankaczmarek ),( Ashfaqulhoque ),( Elizabethdavie ),( Kevinr. W. Ngoei ),( Kaitlinr. Morrison ),( Wlliamj. Smiles ),( Gabriellam. Forte ),( Tingtingwang ),( Shervilie ),( Tob 대한운동사협회 2020 대한운동사협회 운동사대회자료집 Vol.2020 No.-