한국산업보건학회지 (Journal of Korean Society of Occupational and Environmental Hygiene)

  • 제24권2호
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  • Pages.169-181
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  • 2014
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  • 2384-132X(pISSN)
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  • 2289-0564(eISSN)
한국산업보건학회 (Korean Industrial Hygiene Association)
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2-Methylpentane 아만성 흡입독성 연구

A Study on Subchronic Inhalation Toxicity of 2-Methylpentane

  • 정용현 (산업안전보건연구원 독성연구팀) ;
  • 임철홍 (산업안전보건연구원 독성연구팀) ;
  • 한정희 (산업안전보건연구원 독성연구팀)
  • Chung, Yong Hyun (Toxicity Research Team, Occupational Safety and Health Research Institute, Korea Occupational Safety and Health Agency) ;
  • Lim, Cheol Hong (Toxicity Research Team, Occupational Safety and Health Research Institute, Korea Occupational Safety and Health Agency) ;
  • Han, Jeong Hee (Toxicity Research Team, Occupational Safety and Health Research Institute, Korea Occupational Safety and Health Agency)
  • 투고 : 2014.05.02
  • 심사 : 2014.05.27
  • 발행 : 2014.06.30
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초록

Objectives: The purpose of this study was to obtain information regarding classification and health hazards that may result from a 13-week inhalation exposure to 2-methylpentane by Sprague-Dawley rats. Materials: The testing method was conducted in accordance with OECD guidelines for the testing of chemicals No. 413. The rats were divided into four groups(ten male and ten female rats in each group) and exposed to 0 ppm, 290 ppm, 1,160 ppm, 4,640 ppm 2-Methylpentane in each exposure chamber for six hours per day, five days per week, for 13 weeks. Results: No death or particular clinical presentation including weight change and change of feed rate was observed. The relationships between dose, gender and response were also not significantly changed in urinalysis, hematologic examination, or biochemical examination of blood(except for total cholesterol being up, total protein being up, and chloride ion being down in males), and blood coagulation time. For the relative weight measurement of organs, in the male group the weight change of both kidney and liver were increased in proportion to dose. In histopathological examination, nephropathy in the kidney(cystic change of renal tubules, regenerative tubule, inflammatory cell infiltration and necrosis in the interstitial tissue) was increased in a dose-dependent manner in the male group(290 ppm, 1,160 ppm, 4,640 ppm). However, other organs were not affected by the test substance. Conclusions: 2-methylpentane was estimated as a chemical causing nephropathy in the male group. NOAEL(No Observable Adverse Effect Level) in the female group is more than 4,640 ppm, while inthe male group it is less than 290 ppm.

키워드

참고문헌

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피인용 문헌

  1. Subacute Inhalation Toxicity of 3-Methylpentane vol.32, pp.3, 2016, https://doi.org/10.5487/TR.2016.32.3.245