An electron microscope observation for the abnormal ultrastructure of the connecting piece in human spermatozoa from infertile painters / 中华男科学杂志

ABSTRACT

<p><b>OBJECTIVES</b>To investigate possible abnormalities of the sperm neck in eight infertile painters observed by transmission electron microscope.</p><p><b>METHODS</b>Spermatozoa from 8 infertile painters (21-32 years old) were observed by transmission electron microscope.</p><p><b>RESULTS</b>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.</p><p><b>CONCLUSIONS</b>The abnormalities may be related to expression obstacles of nuclear genome and mitochondrial genome, and to anomalous cellular signal transduction during spermiogenesis as well.</p>