The effects of honey and vitamin E administration on
apoptosis in testes of rat exposed to noise stress
J Hum Reprod Sci, 2013 Jan;6(1):54-8
AIMS:
A variety of stress factors are known to inhibit male
reproductive functions. So this study was conducted in order to investigate the
effects of honey and vitamin E on the germinative and somatic cells of testes
of rats exposed to noise stress.
MATERIALS AND METHODS:
Mature male wistar rats (n = 24) were randomly grouped as
follows: Group 1 (honey + noise stress), 2 (vitamin E + noise stress), 3 (noise
stress,) and 4 as the control group. In groups 1, 2, and 3, rats were exposed
to noise stress. In groups 1 and 2, rats also were given honey and vitamin E,
respectively, orally for 50 days. After that, the germinative and somatic cells
of testes parenchyma were isolated by digesting the whole testes by a standard
method. Next, viability, apoptosis, and necrosis of the cells were evaluated by
TUNEL kit and flow cytometry.
RESULTS:
The rates of apoptosis and necrosis of the testicular cells
were increased (P = 0.003 and P = 0.001, respectively), but viability of these
cells decreased in testes of rats exposed to noise stress (P = 0.003). However,
administration of honey and vitamin E were significantly helpful in keeping the
cells of testis parenchyma alive, which suffers from noise pollution (P <
0.05 and P < 0.05, respectively).
CONCLUSIONS:
Noise stress has negative influences on the cells of
testicular tissue by increasing apoptotic and necrotic cells. However, the
associated enhancement in healthy cells suggests that honey and vitamin E have
positive influences on the testis parenchyma.
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