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https://www.readbyqxmd.com/read/27237975/mitochondria-related-peptide-mots-c-suppresses-ovariectomy-induced-bone-loss-via-ampk-activation
#1
Wei Ming, Gan Lu, Sha Xin, Lu Huanyu, Jiang Yinghao, Lei Xiaoying, Xu Chengming, Ruan Banjun, Wang Li, Lu Zifan
Therapeutic targeting bone loss has been the focus of the study in osteoporosis. The present study is intended to evaluate whether MOTS-c, a novel mitochondria related 16 aa peptide, can protect mice from ovariectomy-induced osteoporosis. After ovary removal, the mice were injected with MOTS-c at a dose of 5 mg/kg once a day for 12 weeks. Our results showed that MOTS-c treatment significantly alleviated bone loss, as determined by micro-CT examination. Mechanistically, we found that the receptor activator of nuclear factor-κB ligand (RANKL) induced osteoclast differentiation was remarkably inhibited by MOTS-c...
August 5, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27216708/mots-c-a-novel-mitochondrial-derived-peptide-regulating-muscle-and-fat-metabolism
#2
Changhan Lee, Kyung Hwa Kim, Pinchas Cohen
Mitochondria are ancient organelles that are thought to have emerged from once free-living α-proto-bacteria. As such, they still possess several bacterial-like qualities, including a semi-autonomous genetic system, complete with an independent genome and a unique genetic code. The bacterial-like circular mitochondrial DNA (mtDNA) has been described to encode 37 genes, including 22 tRNAs, 2 rRNAs, and 13 mRNAs. Two additional peptides reported to originate from the mtDNA, namely humanin (Hashimoto et al., 2001; Ikone et al...
May 20, 2016: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/26842585/emerging-drugs-affecting-skeletal-muscle-function-and-mitochondrial-biogenesis-potential-implications-for-sports-drug-testing-programs
#3
Mario Thevis, Wilhelm Schänzer
RATIONALE: A plethora of compounds potentially leading to drug candidates that affect skeletal muscle function and, more specifically, mitochondrial biogenesis, has been under (pre)clinical investigation for rare as well as more common diseases. Some of these compounds could be the object of misuse by athletes aiming at artificial and/or illicit and drug-facilitated performance enhancement, necessitating preventive and proactive anti-doping measures. METHODS: Early warnings and the continuous retrieval and dissemination of information are crucial for sports drug testing laboratories as well as anti-doping authorities, as they assist in preparation of efficient doping control analytical strategies for potential future threats arising from new therapeutic developments...
March 15, 2016: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/26289118/the-mitochondrial-derived-peptide-mots-c-a-player-in-exceptional-longevity
#4
Noriyuki Fuku, Helios Pareja-Galeano, Hirofumi Zempo, Rafael Alis, Yasumichi Arai, Alejandro Lucia, Nobuyoshi Hirose
Mitochondrial-derived peptides (MDP) are encoded by functional short open reading frames in the mitochondrial DNA (mtDNA). These include humanin, and the recently discovered mitochondrial open reading frame of the 12S rRNA-c (MOTS-c). Although more research is needed, we suggest that the m.1382A>C polymorphism located in the MOTS-c encoding mtDNA, which is specific for the Northeast Asian population, may be among the putative biological mechanisms explaining the high longevity of Japanese people.
December 2015: Aging Cell
https://www.readbyqxmd.com/read/25738459/the-mitochondrial-derived-peptide-mots-c-promotes-metabolic-homeostasis-and-reduces-obesity-and-insulin-resistance
#5
Changhan Lee, Jennifer Zeng, Brian G Drew, Tamer Sallam, Alejandro Martin-Montalvo, Junxiang Wan, Su-Jeong Kim, Hemal Mehta, Andrea L Hevener, Rafael de Cabo, Pinchas Cohen
Mitochondria are known to be functional organelles, but their role as a signaling unit is increasingly being appreciated. The identification of a short open reading frame (sORF) in the mitochondrial DNA (mtDNA) that encodes a signaling peptide, humanin, suggests the possible existence of additional sORFs in the mtDNA. Here we report a sORF within the mitochondrial 12S rRNA encoding a 16-amino-acid peptide named MOTS-c (mitochondrial open reading frame of the 12S rRNA-c) that regulates insulin sensitivity and metabolic homeostasis...
March 3, 2015: Cell Metabolism
https://www.readbyqxmd.com/read/25738453/a-mitochondrially-encoded-hormone-ameliorates-obesity-and-insulin-resistance
#6
COMMENT
Kim Zarse, Michael Ristow
MOTS-c, a mitochondrially encoded open reading frame-derived peptide recently discovered by Lee et al. 2015 (this issue of Cell Metabolism) promotes biosynthesis of an endogenous AMP analog, AICAR. As AICAR activates AMPK, the discovery of MOTS-c offers an unexpected therapeutic option to be exploited toward the prevention of type 2 diabetes and delaying of the aging processes.
March 3, 2015: Cell Metabolism
https://www.readbyqxmd.com/read/1016311/-the-institutions-for-the-aged-in-israel
#7
C Motlis
No abstract text is available yet for this article.
November 15, 1976: Harefuah
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