Effects of Water Extracts of Persimmon Leaves to Cadmium Toxicity in Rats by Inhalation Exposure

시엽 추출물이 카드뮴에 흡입폭로된 랫드의 독성에 미치는 영향

  • Kang Sung Ho (Department of The Third Medicine, Professional Graduate School of Oriental Medicine, Wonkwang University) ;
  • Chun Byung Yeol (Department of Preventive Medicine, College of Medicine, Kyungpook National University) ;
  • Kim Sang Duck (Department of The Third Medicine, Professional Graduate School of Oriental Medicine, Wonkwang University) ;
  • Song Young Son (Department of The Third Medicine, Professional Graduate School of Oriental Medicine, Wonkwang University) ;
  • Lee Ki Nam (Department of The Third Medicine, Professional Graduate School of Oriental Medicine, Wonkwang University) ;
  • Jeung Jae Yeal (Department of The Third Medicine, Professional Graduate School of Oriental Medicine, Wonkwang University)
  • 강성호 (원광대학교 한의학전문대학원 제3의학과) ;
  • 천병렬 (경북대학교 의과대학 예방의학교실) ;
  • 김상덕 (원광대학교 한의학전문대학원 제3의학과) ;
  • 송용선 (원광대학교 한의학전문대학원 제3의학과) ;
  • 이기남 (원광대학교 한의학전문대학원 제3의학과) ;
  • 정재열 (원광대학교 한의학전문대학원 제3의학과)
  • Published : 2002.02.01

Abstract

Experimental animals were divided into 5 groups; normal, cadmium control, and 3 experimental groups. Cadmium control and experimental groups were exposed to 1 mg/㎥ of cadmium aerosol in air by inhalation exposure for 6 hours/day, 5 days/week during 4 weeks. Dosages of 20, 40, and 80mg/kg of extracts of persimmon leaves were intraperitoneally injected to experimental groups respectively and several toxicological parameters and induction of metallothionein were measured from the rats that inhaled cadmium aerosol in air. The results of this study were as follows. Cadmium concentration that cadmium control and experimental groups were inhaled was 0.980±0.061 mg/㎥. Mass median diameter of cadmium aerosol for inhalation exposure was 4.93±0.483㎛. Cadmium content of normal group in lung was 0.088㎍/g and the highest cadmium content in lung, 55.492㎍/g was from 80mg/kg dose group. Cadmium concentration of normal group in blood was 0.348㎍/100㎖ and the highest cadmium concentration in blood, 2.642㎍/100㎖ was from cadmium control. Cadmium concentration of normal group in liver was 0.010㎍/g and the highest cadmium concentration in liver, 31.100㎍/g was from 20mg/kg dose group. Cadmium concentration of normal group in kidney was 0.030㎍/g and the highest cadmium concentration in kidney, 2.526㎍/g was from cadmium control. Cadmium concentration of normal group in intestine was O.064㎍/g and the highest cadmium concentration in intestine, 0.300㎍/g was from 80mg/kg dose group. The highest cadmium concentration in urine by week was 6.080㎍/day from 20mg/kg dose group in the fouth week and the highest cadmium concentration in feces by week was 341.731㎍/day from 20mg/kg dose group in the fouth week. Metallothionein concentration of normal group in lung was 5.769㎍/g and the highest in lung, 30.986㎍/g was from 80mg/kg dose group. Metallothionein concentration of normal group in liver was 38.856㎍/g and the highest in liver, 169.378㎍/g was from 40mg/kg dose group. Metallothionein concentration of normal group in kidney was 22.228㎍/g and the highest in kidney, 47.898㎍/g was from 80mg/kg dose group. Metallothionein concentration of normal group in intestine was 2.170㎍/g and the highest in intestine, 13.642㎍/g was from 80mg dose group.

Keywords

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