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Czasopismo

2007 | 66 | 3 |

Tytuł artykułu

Formaldehyde exposure induces histopathological and morphometric changes in the rat testis

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
Formaldehyde is a chemical which is traditionally used for fixing cadavers and routine histopathology techniques. It is vaporised during the dissection and practical study of a cadaver. Previous studies have shown that this vapour may cause clinical symptoms such as throat, eye, skin and nasal irritation. This study was designed to determine the histopathology and morphometrics of the rat testis when all the experimental animals were exposed to formaldehyde for 18 weeks. The study was performed in 2004 on 28 albino Wistar rats of 6–7 postnatal weeks. The rats were divided into three case groups (E1: 4 h/d, 4 d/w; E2: 2 h/d, 4 d/w; E3: 2 h/d, 2 d/w) and one control group. The testes specimens were sectioned at 5 µm and stained with the haematoxylin and eosin staining technique for histological and morphometrical studies. We found a severe decrease in germ cells associated with spermatogenesis arrest in the E1 group. A decrease in germ cells and a thickening of the basal membrane of the seminiferous tubules were seen in E2. Displacement of Sertoli and germinal cells were also found in the E3 group. The mean seminiferous tubular diameter and seminiferous epithelial height in the experimental groups were decreased in comparison with the control group and the differences were statistically significant (p < 0.05). The findings of this study revealed that chronic formaldehyde exposure can cause histopathological and morphometric changes to the seminiferous epithelium in rats and that these changes depend on the duration of the formaldehyde exposure.

Wydawca

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Czasopismo

Rocznik

Tom

66

Numer

3

Opis fizyczny

p.167-171,fig.,ref.

Twórcy

  • Gorgan University of Medical Sciences, Gorgan, Iran
autor
autor
autor
autor

Bibliografia

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  • 2. Burge PS, Harries MG, Lam WK, O’Brien IM, Patchett PA (1985) Occupational asthma due to formaldehyde. Thorax, 40: 255–260.
  • 3. Chowdhary AR, Gautam AK, Patel KG, Trivedi HS (1992) Steroideogenic inhibition on testicular tissue of formaldehyde exposed rats. Indian J Physiol Pharmacol, 36: 162–168.
  • 4. Doreswamy K, Shrilatha B, Rajeshkumar T, Muralidhara (2004) Nickel-induced oxidative stress in testes of mice: evidence of DNA damage and genotoxic effects. Asian J Androl, 25: 996–1003.
  • 5. Feldman M (1975) Reactions of nucleic acids and nulcearoprotein with formaldehyde. Pro Nucl Acid Res Mol Biol, 13: 1–49.
  • 6. Gorski P, Krokowiak A (1991) Formaldehyde induced bronchial asthma. Does it really exist? Pol J Occup Med, 4: 317–320.
  • 7. Gurel A, Coskun O, Armutcu F, Kanter M, Ozen OA (2005) Vitamin E against oxidative damage caused by formaldehyde in frontal cortex and hippocampus: biochemical and histological studies. J Chem Neuroanat, 29: 173–178.
  • 8. Hardy JA, Aust AE (1995) Iron in asbestos chemistry and carcinogenicity. Chem Rev, 95: 97–118.
  • 9. Hess RA (1999) spermatogenesis, overview. In: Knobil E, Neil JD (eds.) Encyclopedia of reproduction. Academic Press, New York, pp. 539–545.
  • 10. International Agency for Research on Cancer. Monographs on the Evaluation of the carcinogenic risk of chemicals to humans: wood dust and formaldehyde (1995) IARC, Lyon 62: 217–362.
  • 11. Klein CB, Snow ET, Fernkel K (1998) Molecular mechanisms in metal carcinogenesis: role of oxidative stress. In: Aruoma OI, Halliwell (eds.) Molcular biology of free radicals in human diseases. OICA International, New York, pp. 79–137.
  • 12. Kumar S, Zaidi SSA, Gautam AK, Dave LM, Saied HN (2003) Semen quality and reproductive hormones among welders: a preliminary study. Environmental Health Prevent Med, 8: 64–67.
  • 13. Ma TH, Harris MM (1988) Review of genotoxicity of formaldehyde. Mut Res, 196: 37–56.
  • 14. Majumder PK, Kumar VL (1995) Inhibitory effects of formaldehyde on the reproductive system of male rats. Indian J Physiol Pharmacol, 39: 80–82.
  • 15. Monticello TM, Swenberg JA, Gross EA, Leininger JR, Kimbell JS, Seilkop S, Starr TB, Gibson JE, Morgan KT (1996) Correlation of regional and nonlinear formaldehyde — induced nasal cancer with proliferating populations of cells. Cancer Res, 56: 1012–1022.
  • 16. Murugesan P, Muthusamy T, Balasubramanian K, Arunakaran J (2005) Studies on the protective role of vitamin C and E against polychlorinated biphenyl (Aroclor 1254) — induced oxidative damage in Leydig cells. Free Radic Res, 39: 1259–1272.
  • 17. Ozen OA, Yaman M, Sarisilmaz M, Songur A, Kus I (2002) Testicular zinc, copper and iron concentrations in male rats exposed to subacute and subchronic formaldehyde forlmadehyde gas inhalation. J Trace Elem Med Boil, 16: 119–122.
  • 18. Saito Y, Nishio K, Yoshida Y, Niki E (2005) Cytotoxic effect of formaldehyde with free radicals via increment of cellular reactive oxygen species. Toxicology, 210: 235–245.
  • 19. Sarsilmaz M, Ozen OA, Akpolat N, Kus I, Songur A (1999) Subakut donemde solunan formaldehitin sicanlarin leydig ucereleri uzerindeki histopatolojiki etkileri. Firat Univ J Health Sci, 13: 37–40.
  • 20. Shah BM, Vachharajani KD, Chinoy NJ, Roy Chowdhary A (1987) Formaldehyde-induced changes in testicular tissues of rats. J Reprod Biol Comp Endocrinol, 7: 42–52.
  • 21. Tang M, Xie Y, Yi Y, Wang W (2003) Effects of formaldehyde on germ cells of male mice. Wei Sheng Yan Jiu, 32: 544–548.
  • 22. Verma RJ, Nair A (2001) Ameliorative effect of Vitamin E on aflatoxin-induced lipid peroxidation in the testis of mice. Asian J Androl, 3: 217–221.
  • 23. World Health Organization (1989) Environmental health criteria for formaldehyde, No. 89, Geneva.
  • 24. Zhou DX, Qiu SD, Wang ZY, Zhang J (2006) Effect of tail-suspension on the reproduction of adult male rats. Zhonghua Nan Ke Xue Za Zhi, 12: 326–329.
  • 25. Zhou DX, Qiu SD, Zhang J, Tian H, Wang HX (2006) The protective effect of vitamin E against oxidative damage caused by formaldehyde in the testes of adult rats. Asian J Androl, 8: 584–588.
  • 26. Zwart A, Woutersen RA, Wilmer JWGM, Spit BJ, Feron VJ (1988) Cytotoxic and adaptive effects in rat nasal epithelium after 3-day and 13-week exposure to low concentration of formaldehyde vapor. Toxicology, 51: 87–99.

Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

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