PMID- 21144504 OWN - NLM STAT- MEDLINE DCOM- 20110511 LR - 20110322 IS - 1556-5653 (Electronic) IS - 0015-0282 (Linking) VI - 95 IP - 5 DP - 2011 Apr TI - Two cases of sperm immotility: a mosaic of flagellar alterations related to dysplasia of the fibrous sheath and abnormalities of head-neck attachment. PG - 1787.e19-23 LID - 10.1016/j.fertnstert.2010.11.027 [doi] AB - OBJECTIVE: To characterize the association of two systematic sperm defects. DESIGN: Case report. SETTING: University, Interdepartmental Centre for Research and Therapy of Male Infertility. PATIENT(S): Patient 1, 42 years old, and patient 2, 38 years old, both with severe asthenozoospermia. INTERVENTION(S): Family history, physical examination, hormonal analysis, microbial assays, semen analysis, transmission and scanning electron microscopy, immunocytochemistry for tubulin, and fluorescence in situ hybridization (FISH) for chromosomes 18, X, and Y. MAIN OUTCOME MEASURE(S): Admixture of dysplasia of the fibrous sheath (DFS) and head-tail misalignment up to acephalic sperm detected by microscopic methods. RESULT(S): In both patients, DFS was present in incomplete form and was associated with acephalic sperm and abnormal head-tail attachment. In patient 2, spermatozoa were also affected by necrosis that may cause fragmentation leading to short flagella; submicroscopic examination allowed defining only the origin of these "stumpy" tails. Immunofluorescence confirmed the sperm alterations. FISH revealed an altered frequency of diploidy and disomy in patient 2 and a slight increase in diploidy in patient 1. CONCLUSION(S): The importance of ultrastructural sperm evaluation for correct identification of sperm pathologies is evident, particularly regarding assisted reproduction technology and genetic risk assessment. CI - Copyright (c) 2011 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved. FAU - Moretti, Elena AU - Moretti E AD - Department of Biomedical Sciences, Applied Biology Section, Interdepartmental Center for Research and Therapy of Male Infertility, University of Siena, Siena, Italy. FAU - Geminiani, Michela AU - Geminiani M FAU - Terzuoli, Gaia AU - Terzuoli G FAU - Renieri, Tommaso AU - Renieri T FAU - Pascarelli, Nicola AU - Pascarelli N FAU - Collodel, Giulia AU - Collodel G LA - eng PT - Case Reports PT - Journal Article DEP - 20101208 PL - United States TA - Fertil Steril JT - Fertility and sterility JID - 0372772 SB - IM MH - Adult MH - Asthenozoospermia/diagnosis/*pathology MH - Humans MH - Male MH - Semen Analysis MH - Sperm Head/*pathology/ultrastructure MH - Sperm Motility/physiology MH - Sperm Tail/*pathology/ultrastructure MH - Spermatozoa/*abnormalities/pathology/ultrastructure EDAT- 2010/12/15 06:00 MHDA- 2011/05/12 06:00 CRDT- 2010/12/15 06:00 PHST- 2010/08/23 00:00 [received] PHST- 2010/09/23 00:00 [revised] PHST- 2010/11/09 00:00 [accepted] PHST- 2010/12/15 06:00 [entrez] PHST- 2010/12/15 06:00 [pubmed] PHST- 2011/05/12 06:00 [medline] AID - S0015-0282(10)02813-X [pii] AID - 10.1016/j.fertnstert.2010.11.027 [doi] PST - ppublish SO - Fertil Steril. 2011 Apr;95(5):1787.e19-23. doi: 10.1016/j.fertnstert.2010.11.027. Epub 2010 Dec 8.