PMID- 38234967 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240119 IS - 1611-2156 (Print) IS - 1611-2156 (Electronic) IS - 1611-2156 (Linking) VI - 22 DP - 2023 TI - Alpha-ketoglutarate partially alleviates effects of high-fat high-fructose diet in mouse muscle. PG - 1264-1277 LID - 10.17179/excli2023-6608 [doi] AB - Consumption of high-calorie diets leads to excessive accumulation of storage lipids in adipose tissue. Metabolic changes occur not only in adipose tissue but in other tissues, too, such as liver, heart, muscle, and brain. This study aimed to explore the effects of high-fat high-fructose diet (HFFD) alone and in the combination with alpha-ketoglutarate (AKG), a well-known cellular metabolite, on energy metabolism in the skeletal muscle of C57BL/6J mice. Five-month-old male mice were divided into four groups - the control one fed a standard diet (10 % kcal fat), HFFD group fed a high-fat high-fructose diet (45 % kcal fat, 15 % kcal fructose), AKG group fed a standard diet with 1 % sodium AKG in drinking water, and HFFD + AKG group fed HFFD and water with 1 % sodium AKG. The dietary regimens lasted 8 weeks. Mice fed HFFD had higher levels of storage triacylglycerides, lower levels of glycogen, and total water-soluble protein, and higher activities of key glycolytic enzymes, namely hexokinase, phosphofructokinase, and pyruvate kinase, as compared with the control group. The results suggest that muscles of HFFD mice may suffer from lipotoxicity. In HFFD + AKG mice, levels of the metabolites and activities of glycolytic enzymes did not differ from the respective values in the control group, except for the activity of pyruvate kinase, which was significantly lower in HFFD + AKG group compared with the control. Thus, metabolic changes in mouse skeletal muscles, caused by HFFD, were alleviated by AKG, indicating a protective role of AKG regarding lipotoxicity. CI - Copyright (c) 2023 Vatashchuk et al. FAU - Vatashchuk, Myroslava V AU - Vatashchuk MV AD - Department of Biochemistry and Biotechnology, Vasyl Stefanyk Precarpathian National University, 57 Shevchenko Str., Ivano-Frankivsk, 76018, Ukraine. FAU - Bayliak, Maria M AU - Bayliak MM AD - Department of Biochemistry and Biotechnology, Vasyl Stefanyk Precarpathian National University, 57 Shevchenko Str., Ivano-Frankivsk, 76018, Ukraine. FAU - Hurza, Viktoriia V AU - Hurza VV AD - Department of Biochemistry and Biotechnology, Vasyl Stefanyk Precarpathian National University, 57 Shevchenko Str., Ivano-Frankivsk, 76018, Ukraine. FAU - Demianchuk, Oleh I AU - Demianchuk OI AD - Department of Biochemistry and Biotechnology, Vasyl Stefanyk Precarpathian National University, 57 Shevchenko Str., Ivano-Frankivsk, 76018, Ukraine. FAU - Gospodaryov, Dmytro V AU - Gospodaryov DV AD - Department of Biochemistry and Biotechnology, Vasyl Stefanyk Precarpathian National University, 57 Shevchenko Str., Ivano-Frankivsk, 76018, Ukraine. FAU - Lushchak, Volodymyr I AU - Lushchak VI AD - Department of Biochemistry and Biotechnology, Vasyl Stefanyk Precarpathian National University, 57 Shevchenko Str., Ivano-Frankivsk, 76018, Ukraine. AD - Research and Development University, 13a Shota Rustaveli Str., Ivano-Frankivsk, 76018, Ukraine. LA - eng PT - Journal Article DEP - 20231205 PL - Germany TA - EXCLI J JT - EXCLI journal JID - 101299402 PMC - PMC10792174 OTO - NOTNLM OT - energy metabolism OT - glycolysis OT - high-fat high-fructose diet OT - lipotoxicity OT - mouse COIS- The authors declare that they have no conflict of interest. EDAT- 2024/01/18 06:42 MHDA- 2024/01/18 06:43 PMCR- 2023/12/05 CRDT- 2024/01/18 04:16 PHST- 2023/09/16 00:00 [received] PHST- 2023/11/14 00:00 [accepted] PHST- 2024/01/18 06:43 [medline] PHST- 2024/01/18 06:42 [pubmed] PHST- 2024/01/18 04:16 [entrez] PHST- 2023/12/05 00:00 [pmc-release] AID - 2023-6608 [pii] AID - Doc1264 [pii] AID - 10.17179/excli2023-6608 [doi] PST - epublish SO - EXCLI J. 2023 Dec 5;22:1264-1277. doi: 10.17179/excli2023-6608. eCollection 2023.