Shape and Position of the Haploid Peak in Flow Cytometric Sperm Histograms for the Assessment of Andrological Diseases*

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Abstract
Ejaculates from 45 patients with various andrological diseases and from healthy en were analyzed by flow cytometric DNA measurements. The sperm histograms obtained by this method were subjected to mathematical analysis. The height, width and position of the haploid (1 C) peak proved to be a useful criterion for the discrimination of spermatozoa from patients with heterogeneous testicular disorders (SHTD, "mixed atrophy") and homogeneous testicular disorders (SETD) with delivery of immature spermiogenetic cells as compared to healthy persons.