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:: Volume 11, Issue 2 (Quarterly 2007) ::
Feyz 2007, 11(2): 17-21 Back to browse issues page
Effect of gamma ray (25 gray) on spermatogenesis and role of epinephrine as a protector in adult rat
Jafar Ai *, Asadollah Zarifkar, Saeid Khatamsaz, Hossein Shahriari
, jafar_ay2000@yahoo.com
Abstract:   (7558 Views)

Background: Since human being is exposed to gamma ray during radiotherapy and some diagnostic tests, studying radiation and radioprotection is necessary. We evaluated the effects of gamma ray (25 gray) on spermatogenesis process and the role of epinephrine as a protector in adult rat.
Materials and Methods: In an experimental study, 120 Wistar rats were divided into 4 groups as follows: 1-Receiving epinephrine 2- receiving saline (Control) 3-exposed to gamma ray and receiving epinephrine, 4-exposed to gamma ray and receiving saline. Epinephrine was injected subcutaneously to abdominal area in a sub lethal dose (1 ml/kg). The animals were exposed to gamma radiation by a gamma ray producing apparatus capable of producing 25 gray gamma radiation. Then testes were removed and spermatogonia cells, primary spermatocytes, spermatid cells, spermatozoids and interstitial cells were counted.
Results: According to the findings in gamma ray group the somniferous tubes were separated from each other and their epithelium showed a significant (p<0.05) reduction in the number of spermatogonia, spermatid and sperm cells. These changes were associated with an increase in the number of primary spermatocytes. These were not seen in the group received epinephrine.
Conclusion: It seems that epinephrine via blood vessel constriction can act as a protector for gamma radiation damages through free radical reduction.

Keywords: Epinephrine, Gamma ray, Rat, Spermatogenesis
Full-Text [PDF 226 kb]   (1740 Downloads)    
Type of Study: Research | Subject: General
Received: 2008/10/26 | Published: 2007/07/15
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Ai J, Zarifkar A, Khatamsaz S, Shahriari H. Effect of gamma ray (25 gray) on spermatogenesis and role of epinephrine as a protector in adult rat. Feyz. 2007; 11 (2) :17-21
URL: http://feyz.kaums.ac.ir/article-1-34-en.html


Volume 11, Issue 2 (Quarterly 2007) Back to browse issues page
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