Nerve growth factor in human semen: Effect of nerve growth factor on the normozoospermic men during cryopreservation process

Saeednia, Sara and Bahadoran, Hosein and Amidi, Fardin and Asadi, Mohammad Hosein and Naji, Mohammad and Fallahi, Parvin and Ataie Nejad, Nahid (2015) Nerve growth factor in human semen: Effect of nerve growth factor on the normozoospermic men during cryopreservation process. Iranian Journal of Basic Medical Sciences, 18 (3). pp. 293-300.

IJBMS_Volume 18_Issue 3_Pages 293-300.pdf

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Objective(s):Althoughroutinely applied in assisted reproductive technology, human sperm cryopreservation is not a completely successful procedure. Adverse effects of cryopreservation on the fertilization capacity, motility, morphology, and viability of spermatozoa have been proven; cryopreservation has also shown a role in sperm DNA fragmentation and infertility. The post-thaw survival of spermatozoa improved after addition of supplementation of antioxidant molecules to freezing media. Nerve growth factor (NGF) as one of the prosurvival substances has gained great attention in recent years. The aim of this study was the usage of NGF as prosurvival factor after cryopreservation process of human semen samples to assess the motility and viability of sperm, nitric oxide (NO) concentration, and DNA fragmentation in normozoospermic men. Materials and Methods: Semen samples were collected from 25 normozoospermic men and were divided into fresh semen samples as control group, frozen–thawed semen samples without addition of exogenous NGF, and three groups of semen samples cryopreserved with addition of exogenous NGF (0.5, 1, and 5 ng/ml) in freezing medium. Viability was assessed by eosin-negrosin staining technique. Motility was evaluated with inverted microscope. NO concentration and apoptosis content were measured with flow cytometry. Results: Results showed that exogenous NGF at 0.5 ng/ml could significantly (P-value <0.05) influence viability, motility, nitric oxide, and DNA fragmentation content. Conclusion: Exogenous NGF as cryoprotectant improved sperm viability and motility, increased intracellular NO concentration, and decreased apoptosis content in normal human spermatozoa.

Item Type: Article
Subjects: QT physiology
Divisions: Journals > Iranian J Basic Medical Sciences
Depositing User: ijbms ijbms
Date Deposited: 03 Oct 2017 17:16
Last Modified: 03 Oct 2017 17:16

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