{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T08:49:01Z","timestamp":1790671741138,"version":"4.1.0"},"reference-count":53,"publisher":"MDPI AG","issue":"21","license":[{"start":{"date-parts":[[2022,11,4]],"date-time":"2022-11-04T00:00:00Z","timestamp":1667520000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100000062","name":"National Institute of Diabetes and Digestive and Kidney Disease","doi-asserted-by":"publisher","award":["R01DK111574"],"award-info":[{"award-number":["R01DK111574"]}],"id":[{"id":"10.13039\/100000062","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJMS"],"abstract":"<jats:p>Alterations in muscle structure and function in chronic kidney disease (CKD) patients are associated with poor outcomes. As key organelles in muscle cell homeostasis, mitochondrial metabolism has been studied in the context of muscle dysfunction in CKD. We conducted a study to determine the contribution of oxidative metabolism, glycolysis and fatty acid oxidation to the muscle metabolism in CKD. Mice developed CKD by exposure to adenine in the diet. Muscle of CKD mice showed significant weight loss compared to non-CKD mice, but only extensor digitorum longus (EDL) muscle showed a decreased number of fibers. There was no difference in the proportion of the various muscle fibers in CKD and non-CKD mice. Muscle of CKD mice had decreased expression of proteins associated with oxidative phosphorylation but increased expression of enzymes and transporters associated with glycolysis. In cell culture, myotubes exposed to uremic serum demonstrated decreased oxygen consumption rates (OCR) when glucose was used as substrate, conserved OCR when fatty acids were used and increased lactate production. In conclusion, mice with adenine-induced CKD developed sarcopenia and with increased glycolytic metabolism but without gross changes in fiber structure. In vitro models of uremic myopathy suggest fatty acid utilization is preserved compared to decreased glucose utilization.<\/jats:p>","DOI":"10.3390\/ijms232113515","type":"journal-article","created":{"date-parts":[[2022,11,4]],"date-time":"2022-11-04T09:15:37Z","timestamp":1667553337000},"page":"13515","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Uremic Myopathy and Mitochondrial Dysfunction in Kidney Disease"],"prefix":"10.3390","volume":"23","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5047-164X","authenticated-orcid":false,"given":"Eurico","family":"Serrano","sequence":"first","affiliation":[{"name":"Division of Nephrology, Department of Medicine, Sidney Kimmel Medical College, Thomas Jefferson University, 33 S 9th Street, Suite 700, Philadelphia, PA 19107, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Diana","family":"Whitaker-Menezes","sequence":"additional","affiliation":[{"name":"Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhao","family":"Lin","sequence":"additional","affiliation":[{"name":"Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Megan","family":"Roche","sequence":"additional","affiliation":[{"name":"Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria Paula","family":"Martinez Cantarin","sequence":"additional","affiliation":[{"name":"Division of Nephrology, Department of Medicine, Sidney Kimmel Medical College, Thomas Jefferson University, 33 S 9th Street, Suite 700, Philadelphia, PA 19107, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,11,4]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Nishi, H., Takemura, K., Higashihara, T., and Inagi, R. 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