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Addition of butylated hydroxytoluene (BHT) in tris-based extender improves post-thaw quality and motion dynamics of dog spermatozoa
Cryobiology ( IF 2.7 ) Pub Date : 2020-12-01 , DOI: 10.1016/j.cryobiol.2020.10.006
Lingwei Sun 1 , Caifeng Wu 1 , Jiehuan Xu 1 , Shushan Zhang 1 , Jianjun Dai 1 , Defu Zhang 1
Affiliation  

The aim of this study was to evaluate the interaction of different concentrations of butylated hydroxytoluene (BHT) in a tris-based extender on semen quality parameters in post-thawed dog semen. Twenty-four ejaculates were collected from eight male Beagle dogs using an artificial vagina. Pooled semen was diluted with a tris-based extender supplemented with 0 (control), 0.5, 1.0, 1.5, and 2.0 mM BHT, at a final concentration of 200 × 106 spermatozoa/mL. After thawing, sperm samples were assessed for motility parameters (CASA), membrane integrity (SYBR-14/PI), acrosome integrity (FITC-PNA), mitochondrial activity (JC-1/PI), malondialdehyde (MDA) concentration, and glutathione peroxidase (GPx) activity. The total motility, progressive motility, and average path velocity of the frozen-thawed sperm were significantly higher in the BHT1.5 group than in the control and the other sample groups (P < 0.05). Higher values of straight-line velocity, curvilinear velocity, amplitude of the lateral head displacement, and linearity were observed in the BHT1.0, BHT1.5, and BHT2.0 groups than in the control (P < 0.05). The BHT1.0 and BHT1.5 groups had higher percentages of straightness and acrosome integrity than the other groups (P < 0.05). Beat cross frequency, plasma membrane integrity, and GPx activity of the BHT1.5 and BHT2.0 groups were higher than those of the control (P < 0.05). A lower concentration of MDA was observed in the BHT1.0, BHT1.5, and BHT2.0 groups than in the control (BHT0) (P < 0.05). Our results indicate that 1.5 mM BHT is the optimal concentration for improving the post-thaw quality of canine spermatozoa.

中文翻译:

在基于 tris 的增量剂中添加丁基化羟基甲苯 (BHT) 可改善狗精子的解冻后质量和运动动力学

本研究的目的是评估不同浓度的丁基化羟基甲苯 (BHT) 在基于 tris 的增量剂中对解冻后狗精液中精液质量参数的相互作用。使用人造阴道从八只雄性比格犬中收集了 24 次精液。合并的精液用添加了 0(对照)、0.5、1.0、1.5 和 2.0 mM BHT 的基于 tris 的稀释剂稀释,最终浓度为 200 × 106 精子/mL。解冻后,评估精子样本的运动参数 (CASA)、膜完整性 (SYBR-14/PI)、顶体完整性 (FITC-PNA)、线粒体活性 (JC-1/PI)、丙二醛 (MDA) 浓度和谷胱甘肽过氧化物酶 (GPx) 活性。BHT1中冻融精子的总运动性、前进运动性和平均路径速度显着提高。5组优于对照组和其他样品组(P < 0.05)。BHT1.0、BHT1.5和BHT2.0组的直线速度、曲线速度、侧向头部位移幅度和线性度均高于对照组(P < 0.05)。BHT1.0和BHT1.5组的直线度和顶体完整性高于其他组(P < 0.05)。BHT1.5和BHT2.0组的搏动交叉频率、质膜完整性和GPx活性均高于对照组(P < 0.05)。BHT1.0、BHT1.5和BHT2.0组的MDA浓度低于对照组(BHT0)(P < 0.05)。我们的结果表明,1.5 mM BHT 是提高犬精子解冻后质量的最佳浓度。05)。BHT1.0、BHT1.5和BHT2.0组的直线速度、曲线速度、侧向头部位移幅度和线性度均高于对照组(P < 0.05)。BHT1.0和BHT1.5组的直线度和顶体完整性高于其他组(P < 0.05)。BHT1.5和BHT2.0组的搏动交叉频率、质膜完整性和GPx活性均高于对照组(P < 0.05)。BHT1.0、BHT1.5和BHT2.0组的MDA浓度低于对照组(BHT0)(P < 0.05)。我们的结果表明,1.5 mM BHT 是提高犬精子解冻后质量的最佳浓度。05)。BHT1.0、BHT1.5和BHT2.0组的直线速度、曲线速度、侧向头部位移幅度和线性度均高于对照组(P < 0.05)。BHT1.0和BHT1.5组的直线度和顶体完整性高于其他组(P < 0.05)。BHT1.5和BHT2.0组的搏动交叉频率、质膜完整性和GPx活性均高于对照组(P < 0.05)。BHT1.0、BHT1.5和BHT2.0组的MDA浓度低于对照组(BHT0)(P < 0.05)。我们的结果表明,1.5 mM BHT 是提高犬精子解冻后质量的最佳浓度。BHT1.0、BHT1.5、BHT2.0组与对照组相比呈线性关系(P < 0.05)。BHT1.0和BHT1.5组的直线度和顶体完整性高于其他组(P < 0.05)。BHT1.5和BHT2.0组的搏动交叉频率、质膜完整性和GPx活性均高于对照组(P < 0.05)。BHT1.0、BHT1.5和BHT2.0组的MDA浓度低于对照组(BHT0)(P < 0.05)。我们的结果表明,1.5 mM BHT 是提高犬精子解冻后质量的最佳浓度。BHT1.0、BHT1.5、BHT2.0组与对照组相比呈线性关系(P < 0.05)。BHT1.0和BHT1.5组的直线度和顶体完整性高于其他组(P < 0.05)。BHT1.5和BHT2.0组的搏动交叉频率、质膜完整性和GPx活性均高于对照组(P < 0.05)。BHT1.0、BHT1.5和BHT2.0组的MDA浓度低于对照组(BHT0)(P < 0.05)。我们的结果表明,1.5 mM BHT 是提高犬精子解冻后质量的最佳浓度。BHT1.5和BHT2.0组的搏动交叉频率、质膜完整性和GPx活性均高于对照组(P < 0.05)。BHT1.0、BHT1.5和BHT2.0组的MDA浓度低于对照组(BHT0)(P < 0.05)。我们的结果表明,1.5 mM BHT 是提高犬精子解冻后质量的最佳浓度。BHT1.5和BHT2.0组的搏动交叉频率、质膜完整性和GPx活性均高于对照组(P < 0.05)。BHT1.0、BHT1.5和BHT2.0组的MDA浓度低于对照组(BHT0)(P < 0.05)。我们的结果表明,1.5 mM BHT 是提高犬精子解冻后质量的最佳浓度。
更新日期:2020-12-01
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