PMID- 29867095 OWN - NLM STAT- MEDLINE DCOM- 20191129 LR - 20240326 IS - 2041-4889 (Electronic) VI - 9 IP - 6 DP - 2018 Apr 22 TI - Metabolic patterns in insulin-resistant male hypogonadism. PG - 671 LID - 10.1038/s41419-018-0587-9 [doi] LID - 671 AB - Male hypogonadism associated with insulin resistance (IR) very often leads to metabolic syndrome, at variance with hypogonadism in its first stadium of insulin sensitivity (IS). A plasma metabolomic investigation of these patients can provide useful information in comparison with the values of IS patients. To this aim plasma from insulin-resistant males with hypogonadism were analysed by using ultra high-performance liquid chromatography (UHPLC) and high-resolution mass spectrometry (HRMS). Thus, metabolites were compared to the controls through multivariate statistical analysis and grouped by metabolic pathways. Metabolite database searches and pathway analyses identified imbalances in 18-20 metabolic pathways. Glucose metabolism (e.g., glycolysis and the Krebs cycle) is fuelled by amino acids degradation, in particular of branched amino acids, in individuals with lean body mass. Gluconeogenesis is strongly activated. Some crucial pathways such as glycerol are skewed. Mitochondrial electron transport is affected with a reduction in ATP production. Beta-oxidation of short and medium chain fatty acids did not represent an energy source in hypogonadism, at variance with long and branched fatty acids, justifying the increase in fat mass. Carnosine and beta-alanine are strongly reduced resulting in increased fatigue and mental confusion. A comparison of IR with IS male hypogonadism will contribute to a better understanding of how these two hormones work in synergy or antagonise each other in humans. It could also help to select patients who will respond to hormone treatment, and provide accurate biomarkers to measure the response to treatment eventually leading to better strategies in preventing systemic complications in patients not fit for hormone replacement therapy. FAU - Gevi, Federica AU - Gevi F AD - Department of Science and Technology for Agriculture, Forestry, Nature and Energy (DAFNE), University of Tuscia, Viterbo, Italy. FAU - Fanelli, Giuseppina AU - Fanelli G AD - Department of Ecological and Biological Sciences (DEB), University of Tuscia, Viterbo, Italy. FAU - Zolla, Lello AU - Zolla L AD - Department of Science and Technology for Agriculture, Forestry, Nature and Energy (DAFNE), University of Tuscia, Viterbo, Italy. zolla@unitus.it. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20180422 PL - England TA - Cell Death Dis JT - Cell death & disease JID - 101524092 RN - 0 (Amino Acids) RN - 11P2JDE17B (beta-Alanine) RN - 72-89-9 (Acetyl Coenzyme A) RN - 8HO6PVN24W (Carnosine) RN - IY9XDZ35W2 (Glucose) RN - PDC6A3C0OX (Glycerol) SB - IM MH - Acetyl Coenzyme A/metabolism MH - Adult MH - Amino Acids/blood MH - Carnosine/metabolism MH - Citric Acid Cycle MH - Glucose/metabolism MH - Glycerol/metabolism MH - Glycolysis MH - Humans MH - Hypogonadism/blood/*metabolism MH - *Insulin Resistance MH - Male MH - Metabolome MH - Metabolomics MH - Middle Aged MH - beta-Alanine/metabolism PMC - PMC5986816 COIS- The authors declare that they have no conflict of interest. EDAT- 2018/06/06 06:00 MHDA- 2019/11/30 06:00 PMCR- 2018/04/22 CRDT- 2018/06/06 06:00 PHST- 2018/01/31 00:00 [received] PHST- 2018/04/12 00:00 [accepted] PHST- 2018/03/28 00:00 [revised] PHST- 2018/06/06 06:00 [entrez] PHST- 2018/06/06 06:00 [pubmed] PHST- 2019/11/30 06:00 [medline] PHST- 2018/04/22 00:00 [pmc-release] AID - 10.1038/s41419-018-0587-9 [pii] AID - 587 [pii] AID - 10.1038/s41419-018-0587-9 [doi] PST - epublish SO - Cell Death Dis. 2018 Apr 22;9(6):671. doi: 10.1038/s41419-018-0587-9.