The Difference in Subpopulation Structures in Sex-Sorted and Non-Sorted Semen by Discriminant Analysis of Bull Sperm Motility Data Collected by a Computer-Assisted Sperm Analysis System

IF 2.1 4区医学 Q3 ANDROLOGY

Andrologia Pub Date : 2023-05-24 DOI:10.1155/2023/9944344

Chihiro Kanno, Kentaro Q. Sakamoto, Sung-Sik Kang, Yojiro Yanagawa, Seiji Katagiri, Masashi Nagano

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Abstract

We examined the motility characteristics of sperm from sex-sorted bull semen as a model for low-quality (expected low conception rate) sperm compared to that of sperm from non-sorted semen (expected average conception rate) using cluster analysis followed by discriminant analysis. The results indicated that sex-sorted semen contained sperm with hyperactivation-like motility as the main subpopulation immediately after thawing, and this subpopulation decreased after 2 h of incubation. The main subpopulation in the non-sorted semen had progressive motility that was maintained during incubation. A conventional comparison of the mean values of kinematic parameters could not distinguish the samples. In conclusion, discriminant analysis using data from a cluster analysis of motile sperm may accurately describe differences in the structures of sperm motility subpopulations between low and normal fertility semen.

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用计算机辅助精子分析系统收集的公牛精子活力数据判别分析性别分类与非性别分类精液亚群结构的差异

我们使用聚类分析和判别分析，检验了性别分类公牛精液中精子的运动特征，作为低质量（预期低受孕率）精子与非分类精液中精子（预期平均受孕率）的模型。结果表明，性别分型精液在解冻后立即含有具有超活化样运动能力的精子作为主要亚群，并且该亚群在解冻后2 孵育h。未分选精液中的主要亚群具有进行性运动，在孵育过程中保持这种运动。运动学参数平均值的传统比较无法区分样本。总之，使用运动精子聚类分析数据的判别分析可以准确描述低生育能力精液和正常生育能力精液之间精子运动亚群结构的差异。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Andrologia 医学-男科学

CiteScore

5.60

自引率

8.30%

发文量

292

审稿时长

6 months

期刊介绍： Andrologia provides an international forum for original papers on the current clinical, morphological, biochemical, and experimental status of organic male infertility and sexual disorders in men. The articles inform on the whole process of advances in andrology (including the aging male), from fundamental research to therapeutic developments worldwide. First published in 1969 and the first international journal of andrology, it is a well established journal in this expanding area of reproductive medicine.