商业金合欢富含单宁提取物和没食子儿茶素对绵羊冷冻精液活力的影响。

IF 2.1 4区 医学 Q3 ANDROLOGY
Mohammed S Liman, Abubeker Hassen, Mario P Smuts, Ahmed D A Biraima, Peter Sutovsky, Lyndy J McGaw, Dietmar E Holm
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引用次数: 0

摘要

本研究的目的是评估商业金合欢(MTE_0)富含单宁的提取物(MTE_0)和从金合欢中提取的黄酮类化合物没食子儿茶素对冷冻保存的绵羊精液的长期活力和活力的影响。从6只成年美利奴公羊中获得的6次新鲜射精,每周2次,持续3周,分别分配到5个等份(0、12.5、25、50和100µM没食子儿茶素添加到Optidyl™扩展器中),然后冷却和冷冻保存。采用计算机辅助精液分析(CASA)分析MTE_0和没食子儿茶素对解冻后运动特性的影响,以及活力(LIVE/DEAD®kit, Molecular Invitrogen, Waltham, MA)、氧化应激(2,7-二氯二氢荧光素双乙酸酯(H2DCFDA, Thermo Fisher®,Waltham, MA)对活性氧(ROS)的影响、线粒体膜电位(JC-1 MitoTracker, Molecular Invitrogen, Waltham, MA)、顶体完整性(凝集素PNA)、流式细胞术中使用merocyanine 540 (M540)和YO-PRO-1染料进行容能。数据采用单因素方差分析(IBM SPSS 21.0 for Windows, Armonk, NY)。25µM时没食子儿茶素对冷冻精液的运动参数包括平均路径速度(VAP)、前进速度(VSL)和跳动交叉频率(BCF)有正向影响(p≤0.001)。同样,与其他处理相比,25µM的没食子儿茶素提高了精子活力(21.99±2.06%),降低了ROS水平(26.45±1.10%),减轻了过早获能(存活和稳定20.08±1.48%)。与MTE_0提取物相比,精液中添加没食子儿茶素具有显著(p≤0.001)的正效应。结果表明,在25µM下加入没食子儿茶素可显著减少冷冻保存后精液的退化。本研究首次将没食子儿茶素作为一种有效的抗氧化剂添加到羊精液中,以提高其储存质量。我们的发现将有助于提高解冻后绵羊精液的质量和寿命。建议今后进一步研究没食子儿茶素及其衍生物对精子活力和寿命的抗氧化应激作用机制。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Influence of tannin-rich extract from commercial Acacia mearnsii and gallocatechin on ovine cryopreserved semen viability.

The objective of this study was to evaluate the effect of a tannin-rich extract from commercial Acacia mearnsii (MTE_0), and gallocatechin, a flavonoid compound derived from Acacia mearnsii, on the long-term viability and motility of cryopreserved ovine semen. Six fresh ejaculates obtained from six adult merino rams twice per week for three weeks were allocated to five aliquots (0, 12.5, 25, 50, and 100 µM gallocatechin added into the Optidyl™ extender) before cooling and cryopreservation. Effects of MTE_0 and gallocatechin on post-thawed motility characteristics were analyzed using computer-assisted semen analysis (CASA), and viability (LIVE/DEAD® kit, Molecular Invitrogen, Waltham, MA), oxidative stress (2,7-dichlorodihydrofluorescein diacetate (H2DCFDA, Thermo Fisher®, Waltham, MA)) for reactive oxygen species (ROS), mitochondrial membrane potential (JC-1 MitoTracker, Molecular Invitrogen, Waltham, MA), acrosomal integrity (lectin PNA), and capacitation using merocyanine 540 (M540) and YO-PRO-1 dyes in flow cytometry. Data were analyzed using one-way ANOVA (IBM SPSS 21.0 for Windows, Armonk, NY). Gallocatechin at 25 µM positively affected (p ≤ .001) kinematic parameters including average path velocity (VAP), progressive velocity (VSL), and beat cross frequency (BCF) of cryopreserved semen. Similarly, gallocatechin at 25 µM- improved sperm motility (live 21.99 ± 2.06%), reduced ROS levels (26.45 ± 1.10%), and mitigated premature capacitation (viable and stable 20.08 ± 1.48%) compared to other treatments. Gallocatechin addition to semen resulted in a significant (p ≤ .001) positive effect compared with the MTE_0 extract. It is concluded that gallocatechin inclusion at 25 µM significantly reduces semen deterioration following cryopreservation. This study is the first to introduce gallocatechin as an efficient antioxidant additive to ovine semen to improve its quality during storage. Our findings will help improve post-thaw ovine semen quality and longevity. Future studies to elucidate the mechanism of anti-oxidative stress action of gallocatechin and its derivatives on semen motility and longevity are recommended.

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来源期刊
CiteScore
4.30
自引率
4.20%
发文量
27
审稿时长
>12 weeks
期刊介绍: Systems Biology in Reproductive Medicine, SBiRM, publishes Research Articles, Communications, Applications Notes that include protocols a Clinical Corner that includes case reports, Review Articles and Hypotheses and Letters to the Editor on human and animal reproduction. The journal will highlight the use of systems approaches including genomic, cellular, proteomic, metabolomic, bioinformatic, molecular, and biochemical, to address fundamental questions in reproductive biology, reproductive medicine, and translational research. The journal publishes research involving human and animal gametes, stem cells, developmental biology and toxicology, and clinical care in reproductive medicine. Specific areas of interest to the journal include: male factor infertility and germ cell biology, reproductive technologies (gamete micro-manipulation and cryopreservation, in vitro fertilization/embryo transfer (IVF/ET) and contraception. Research that is directed towards developing new or enhanced technologies for clinical medicine or scientific research in reproduction is of significant interest to the journal.
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