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Cryoprotectant with a mitochondrial derived peptide, humanin, improves post-thaw quality of buffalospermatozoa

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Title Cryoprotectant with a mitochondrial derived peptide, humanin, improves post-thaw quality of buffalospermatozoa
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Creator Rahul Katiyar
Subrata Kumar Ghosh
Abhishek Kumar
Megha Pande
Amare Eshetu Gemeda
Rupali Rautela
Sanjeev Kumar Bhure
SK Dhara
Karikalan Mathesh
Neeraj Srivastava
MK Patra
 
Subject Humanin
 
Description Not Available
Background: Semen cryopreservation results in deleterious effects on spermatozoa, including lipid peroxidation and a reduction in the total antioxidant components of seminal plasma. The ultimate outcome of these changes is a reduction in post-thaw semen quality. A mitochondrial derived peptide, humanin, a potent cytoprotective and antioxidant agent was used in the present study.

Objective: To evaluate the efficacy of a mitochondrial-derived peptide, humanin to improve the post-thaw quality of buffalo spermatozoa.

Materials and methods: A total of 18 ejaculates from three Murrah buffalo bulls (n=6 each) were collected. Each ejaculate was divided into four aliquots. The first aliquot was diluted with standard EYTG dilutor (Group I, control), whereas the other three aliquots were diluted with EYTG supplemented with 2 µM (Group II), 5 µM (Group III) and 10 µM humanin (Group IV), respectively. Semen was evaluated for physico-morphological and functional attributes such as progressive motility, viability, abnormality, acrosome integrity, plasmamembrane integrity of fresh samples, pre-freeze and post-thaw stages. Oxidative stress parameters [lipid peroxidation (LPO) and total antioxidant capacity (TAC)] were also measured at the pre-freeze and post-thaw stages.

Results: Humanin supplementation resulted in significantly higher (p < 0.05) post-thaw motility in all treatment groups and, higher (p < 0.05) viability in Groups III and IV in comparison to the control at the post-thaw stage. Spermatozoa with intact acrosome and plasma membrane were higher (p < 0.05) in Groups III and IV as compared to Groups I and II. The LPO levels at the post-thaw stage were found to be lower (p < 0.05) in all treatment groups versus the control group, whereas, higher (p≤0.05) TAC values were recorded in Groups III and IV in comparison to the control and Group II.

Conclusion: Humanin supplementation in the extender improved the freezabilty of buffalo spermatozoa.
Not Available
 
Date 2023-05-17T03:57:50Z
2023-05-17T03:57:50Z
2022-01-01
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/77546
 
Language English
 
Relation Not Available;
 
Publisher CryoLetters LLP