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Effect of Supplementation of Zinc on Exposed to Noise Stress Fertilization Capacity of Male Rats Exposed to Noise Stress
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Gh Saki *   1, Ms Jalali , Ar Sarkaki , Kh Karami |
| 1- , ghasemsaki@yahoo.com |
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Abstract: (17312 Views) |
| Introduction: Considering the harmful effe-cts of noise stress on the fertility and sex hormones, it is trying to minimize the effects of stress. In this study, it was deci-ded to use zinc and study the protective effects of zinc supplementation on fertiliz-ation capacity of male rats exposed to noise stress.
Materials & Methods: In this experimental study 40 male Wistar rats with weight of 225±25 grams were divided randomly into four equal groups (n=10). Control group: No exposed to noise stress, Group 2: Ex-posed to noise with intensity of 90-120 db. And frequency of 300-350HZ and an ordi-nary one for 50 days at night times. Rats in groups 3 &4: Exposed to noise stress as mention above and received 300 and 500 ppm of zinc respectively. After 50 days the blood samples of rats in four groups were collected and the plasma level of test-osterone, LH and FSH was calculated. Afterwards any group of male rats with ratio of 2:1 coupled with female ones and after 19 days the pregnant mice scarified and produced fetuses was assessed. Data were analyzed using ANOVA, Tukey and Duncan's tests and p value of <0.05 was considered as statistically significant.
Findings: This study showed that the plas-ma concentration of testosterone, LH and FSH significantly decrease in rate exposed to noise stress. The number of alive fetuses and weight of them also decreases and the rate of dead and absorb fetuses increased in rate exposed to noise. In this study the role of zinc as a protective agent was well understood.
Discussion & Conclusion: we recommend that the living environment of human being to be less affected to this physical pollution. It is suggested that people who live in noisy places a value of zinc uses. |
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| Keywords: noise stress, testosterone, LH, FSH, zinc |
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Full-Text [PDF 248 kb]
(4476 Downloads)
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Type of Study: Research |
Subject:
physiology
Received: 2013/05/18 | Accepted: 2013/09/1 | Published: 2013/09/1
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