PMID- 23146833 OWN - NLM STAT- MEDLINE DCOM- 20130610 LR - 20121231 IS - 1873-2941 (Electronic) IS - 0009-3084 (Linking) VI - 165 IP - 8 DP - 2012 Dec TI - Enhanced lysophosphatidylcholine and sphingomyelin contents are characteristic of spermatozoa from obese men-A MALDI mass spectrometric study. PG - 861-5 LID - S0009-3084(12)00117-X [pii] LID - 10.1016/j.chemphyslip.2012.11.001 [doi] AB - The lipids of human spermatozoa are characterized by unique fatty acyl compositions, i.e. considerable amounts of highly unsaturated, in particular docosahexaenoyl (22:6) fatty acyl residues. This makes spermatozoa very sensitive to oxidation. It has already been shown that the most abundant lipid of sperm, phosphatidylcholine (PC), is converted into lysophosphatidylcholine (LPC) under conditions of oxidative stress, and, thus, the PC/LPC ratio may be used as a measure of sperm quality. However, direct correlations between the PC/LPC ratios and certain pathologies are so far missing. We will show here for the first time (by using matrix-assisted laser desorption and ionization time-of-flight (MALDI-TOF) mass spectrometry (MS)) that sperm from obese donors (BMI>35kg/m(2)) are characterized by (a) a significantly increased LPC as well as (b) an increased sphingomyelin content. This does exclusively hold true for the lipid extracts of the spermatozoa but is not valid for the related seminal fluids. CI - Copyright (c) 2012 Elsevier Ireland Ltd. All rights reserved. FAU - Pyttel, Susanne AU - Pyttel S AD - Department of Dermatology, Training Center of the European Academy of Andrology, University of Leipzig, Philipp-Rosenthal-Strasse 23, D-04103 Leipzig, Germany. FAU - Zschornig, Kristin AU - Zschornig K FAU - Nimptsch, Ariane AU - Nimptsch A FAU - Paasch, Uwe AU - Paasch U FAU - Schiller, Jurgen AU - Schiller J LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20121110 PL - Ireland TA - Chem Phys Lipids JT - Chemistry and physics of lipids JID - 0067206 RN - 0 (Lysophosphatidylcholines) RN - 0 (Sphingomyelins) SB - IM MH - Adult MH - Body Mass Index MH - Humans MH - Lysophosphatidylcholines/*analysis MH - Male MH - Middle Aged MH - Obesity/*metabolism/pathology MH - *Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization MH - Sperm Motility MH - Spermatozoa/*chemistry/physiology MH - Sphingomyelins/*analysis EDAT- 2012/11/14 06:00 MHDA- 2013/06/12 06:00 CRDT- 2012/11/14 06:00 PHST- 2012/06/20 00:00 [received] PHST- 2012/10/25 00:00 [revised] PHST- 2012/11/02 00:00 [accepted] PHST- 2012/11/14 06:00 [entrez] PHST- 2012/11/14 06:00 [pubmed] PHST- 2013/06/12 06:00 [medline] AID - S0009-3084(12)00117-X [pii] AID - 10.1016/j.chemphyslip.2012.11.001 [doi] PST - ppublish SO - Chem Phys Lipids. 2012 Dec;165(8):861-5. doi: 10.1016/j.chemphyslip.2012.11.001. Epub 2012 Nov 10.