PMID- 18950847 OWN - NLM STAT- MEDLINE DCOM- 20090528 LR - 20090126 IS - 0093-691X (Print) IS - 0093-691X (Linking) VI - 71 IP - 4 DP - 2009 Mar 1 TI - MALDI-TOF "fingerprint" phospholipid mass spectra allow the differentiation between ruminantia and feloideae spermatozoa. PG - 568-75 LID - 10.1016/j.theriogenology.2008.08.023 [doi] AB - The detailed comparative analysis of sperm lipids could essentially contribute to a better understanding of membrane function in the context of fertilization and, moreover, of sperm preservation. The application of sensitive analytical methods is particularly necessary for endangered species as the available amount of spermatozoa (and, accordingly, extractable lipids) is strongly limited. It will be shown that matrix-assisted laser desorption and ionization time-of-flight (MALDI-TOF) mass spectrometry (MS) is a fast, simple and sensitive method for the determination of the phospholipid composition of spermatozoa from several ruminantia (cattle, roe deer, Klipspringer) and feloideae species (domestic cat, Siberian tiger, fosa). Characteristic "fingerprints" are obtained from the positive ion spectra that allow the differentiation between both animal groups. In contrast to the lipid extracts of ruminantia spermatozoa which predominantly contain ether lipids including essential amounts of plasmalogens, the more complex phospholipid composition of feloideae spermatozoa is clearly dominated by diacyl phospholipids and contains only marginal amounts of plasmalogens. It will also be shown that the lipid compositions of ejaculated, electroejaculated and cauda epididymal spermatozoa of the same species are very similar and give comparable data. Therefore, the analysis of ejaculated spermatozoa is not an absolute must. FAU - Fuchs, B AU - Fuchs B AD - University of Leipzig, Medical Faculty, Institute of Medical Physics and Biophysics, Leipzig, Germany. FAU - Jakop, U AU - Jakop U FAU - Goritz, F AU - Goritz F FAU - Hermes, R AU - Hermes R FAU - Hildebrandt, T AU - Hildebrandt T FAU - Schiller, J AU - Schiller J FAU - Muller, K AU - Muller K LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20081023 PL - United States TA - Theriogenology JT - Theriogenology JID - 0421510 RN - 0 (Phospholipids) SB - IM MH - Animals MH - Felidae/*physiology MH - Male MH - Phospholipids/*chemistry/metabolism MH - Ruminants/*physiology MH - Species Specificity MH - Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization/*veterinary MH - Spermatozoa/*cytology/physiology EDAT- 2008/10/28 09:00 MHDA- 2009/05/29 09:00 CRDT- 2008/10/28 09:00 PHST- 2008/04/24 00:00 [received] PHST- 2008/07/03 00:00 [revised] PHST- 2008/08/17 00:00 [accepted] PHST- 2008/10/28 09:00 [pubmed] PHST- 2009/05/29 09:00 [medline] PHST- 2008/10/28 09:00 [entrez] AID - S0093-691X(08)00618-3 [pii] AID - 10.1016/j.theriogenology.2008.08.023 [doi] PST - ppublish SO - Theriogenology. 2009 Mar 1;71(4):568-75. doi: 10.1016/j.theriogenology.2008.08.023. Epub 2008 Oct 23.