Lamont M A, Faed M J, Baxby K
J Clin Pathol. 1981 Feb;34(2):145-50. doi: 10.1136/jcp.34.2.145.
Testicular biopsy specimens from 16 fertile and 10 subfertile men with normal male karyotype were studied quantitatively to provide histological and cytogenetic data for a basis of reference in assessing abnormalities of spermatogenesis. Histological studies included estimation of the proportion and activity of germinal epithelium and an assessment of tubular morphology. In cytogenetic preparations, counts were made of cells at different stages of meiosis. Studies of cells at diakinesis included chiasma counts and percentage of cells with dissociated sex chromosomes. One fertile and six subfertile men showed decreased germinal activity; the six subfertile men also had decreased MII/MI ratios. Other findings were similar in the two groups.
对16名具有正常男性核型的生育能力正常的男性和10名生育能力低下的男性的睾丸活检标本进行了定量研究,以提供组织学和细胞遗传学数据,作为评估精子发生异常的参考依据。组织学研究包括对生精上皮比例和活性的估计以及对曲细精管形态的评估。在细胞遗传学标本中,对减数分裂不同阶段的细胞进行了计数。对终变期细胞的研究包括交叉计数和性染色体分离细胞的百分比。一名生育能力正常的男性和六名生育能力低下的男性显示出生精活性降低;这六名生育能力低下的男性的减数第二次分裂/减数第一次分裂(MII/MI)比率也降低。两组的其他发现相似。