Sisteamin ve Alfa Lipoik Asit Kombinasyonunun Dondurulmuş-Çözdürülmüş Boğa Sperması Parametreleri Üzerine Etkisi

Yıl 2016, Cilt: 9 Sayı: 2, 88 - 96, 01.06.2016

Şükrü Güngör , Adil Aksoy Deniz Yeni Fatih Avdatek Caner Öztürk Mehmet Bozkurt Ataman Kenan Coyan Mustafa Numan Bucak Nuri Başpınar Pınar Peker Akalın

Öz

Sunulan çalışmada sisteamin, trehaloz, alfa-lipoik asit ve bu antioksidan kombinasyonlarının, çözüm sonu boğa spermasında spermatolojik ve oksidatif stres parametreleri üzerine koruyucu etkinliklerinin belirlenmesi amaçlandı. Beş adet sağlıklı holştayn (3-4 yaşlarında) ırkı boğa kullanıldı. Çalışmada kullanılan her boğadan 8 ejakülat alındı. Alınan ejakülatlar miks yapılarak 37 °C’de 7 eşit hacme bölündükten sonra, sisteamin 2 mM, trehaloz 50 mM, alfa-lipoik asit (ALA) 1 mM, sisteamin 2 mM + trehaloz 50 mM, ALA 1 mM + trehaloz 50 mM, sisteamin 2 mM + ALA 1 mM ve antioksidan içermeyen (kontrol) temel sulandırıcı ile sulandırılarak 5 °C’de soğutulmasının ardından donduruldu. Dondurulan payetler su banyosunda çözdürülerek değerlendirildi. Sisteamin 2 mM + ALA 1 mM kombinasyonunu içeren sperma sulandırıcısının çözüm sonu subjektif (% 68 ± 2.7) ve progresif motilite (% 42.9 ± 4.7) oranları üzerine kontrol gruplarına kıyasla (% 61 ± 4.2 ve % 37.5 ± 8) olumlu etkinliği gözlenirken istatiksel olarak fark önemsiz bulundu (P> 0.05). Sisteamin 2 mM + ALA 1 mM kombinasyonu içeren sperma sulandırıcı grubu akrozom bütünlüğü ve mitokondriyal aktivite oranları (% 52.02 ± 6.4 ve % 32 ± 4.1) kontrol gruplarına (% 30.5 ± 1.7 ve % 14.02 ± 3.5) göre istatistiksel olarak daha yüksek bulundu (P < 0.05). Dondurulmuş çözdürülmüş boğa sperma sulandırıcılarına eklenen sisteamin ve ALA kombinasyonu spermatozoon motilitesine, akrozom bütünlüğüne ve mitokondriyal aktivite bütünlüğüne katkı sağladı.

Anahtar Kelimeler

Alfa Lipoik Asit, Boğa Sperması, Sisteamin, Floresan Boyama, Trehaloz

Combination of Cysteamine and Lipoic Acid Improves the Post-Thawed Bull Sperm Parameters

Öz

The present study was conducted to examine the protective roles of cysteamine, trehalose, alpha-lipoic acid and combinations of these antioxidants on post-thawed bull sperm and oxidative stress parameters. Five healthy Holstein bull (3-4 years old) were used. Eight ejaculates for each bull were collected and pooled. Pooled ejaculate, splitted into seven equal aliquots and diluted at 37 °C with base extenders containing cysteamine 2 mM, trehalose 50 mM, alpha-lipoic acid (ALA) 1 mM, cysteamine 2 mM + trehalose 50 mM, ALA 1 mM + trehalose 50 mM, cysteamine 2 mM + ALA 1 mM and no antioxidant (control), was cooled to 5 °C and then frozen. Frozen straws were thawed in a water bath for evaluation. The combination of cysteamine 2 mM and ALA 1 mM of the semen extender improved the percentages of post-thawed subjective motility (68 ± 2.7%), and progressive motility (42.9 ± 4.7%), compared with the controls (61 ± 4.2% and 37.5 ± 8%, respectively, non- significantly, P>0.05). The supplementation of the semen extender with combination of cysteamine 2 mM and ALA 1 mM produced a higher acrosome integrity and mitochondrial activity (52.02 ± 6.4% and 32 ± 4.1%, respectively), compared with the controls (30.5 ± 1.7 and 14.02 ± 3.5% respectively, P < 0.05). Combination of cysteamine and ALA antioxidants in semen extenders provided the benefit in terms of sperm motilities, acrosome integrity and mitochondrial activity on frozen-thawed bull sperm

Anahtar Kelimeler

Alpha Lipoic Acid, Bull Sperm, Cysteamine, Fluorescent Staining, Trehalose

Kaynakça

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