[An electron microscope observation for the abnormal ultrastructure of the connecting piece in human spermatozoa from infertile painters].

ABSTRACT

OBJECTIVES: 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.