title: [An electron microscope observation for the abnormal ultrastructure of the connecting piece in human spermatozoa from infertile painters].
abstract: OBJECTIVE
  To investigate possible abnormalities of the sperm neck in eight infertile painters observed by transmission electron microscope.
  
  
  METHODS
  Spermatozoa from 8 infertile painters (21-32 years old) were observed by transmission electron microscope.
  
  
  RESULTS
  The abnormalities of the connecting piece could be divided into 6 types, among which the anomaly of the connecting piece concomitant with a true nuclemalamic condition was the most serious.
  
  
  CONCLUSIONS
  The abnormalities may be related to expression obstacles of nuclear genome and mitochondrial genome, and to anomalous cellular signal transduction during spermiogenesis as well.
authors.affiliation: Reproductive Medicine Center, Tongji Medical College, Huazhong University of Science & Techonology, Wuhan, Hubei 430030, China. wgang-ts@163.net
authors.forename: Gang
authors.initials: G
authors.lastname: Wang
authors.forename: Zi-Long
authors.initials: ZL
authors.lastname: Liu
authors.forename: Yan-Qun
authors.initials: YQ
authors.lastname: Hu
authors.forename: Zhong-Ming
authors.initials: ZM
authors.lastname: Xiong
authors.forename: Hui-Zhu
authors.initials: HZ
authors.lastname: Xiao
authors.forename: Cheng-Liang
authors.initials: CL
authors.lastname: Xiong
mesh_terms: D000328:Adult; D006801:Humans; D007248:Infertility, Male / Q000473:pathology*; D008297:Male; D046529:Microscopy, Electron, Transmission; D016273:Occupational Exposure; D010150:Paint / Q000009:adverse effects*; D013094:Spermatozoa / Q000648:ultrastructure*