Single Oral Dose Toxicity Study of WK-38 in Rats

랫트에서 WK-38의 단회경구투여 독성에 관한 연구

  • Chang, Bo-Yoon (College of Pharmcy, Wonkwang University) ;
  • Kim, Yoon-Chul (College of Pharmcy, Wonkwang University) ;
  • Lee, An-Sook (Korea Professional Graduate School of Oriental Medicine, Research Institute(MeRRI), Wonkwang University) ;
  • Kang, Dae-Gill (Korea Professional Graduate School of Oriental Medicine, Research Institute(MeRRI), Wonkwang University) ;
  • Lee, Ho-Sub (Korea Professional Graduate School of Oriental Medicine, Research Institute(MeRRI), Wonkwang University) ;
  • Kim, Sung-Yeon (College of Pharmcy, Wonkwang University)
  • Published : 2007.06.30

Abstract

Acute toxicity of WK-38, a herbal preparation for the atherosclerosis, was examined using male and female Sprague-Dawley rats. WK-38 is composed of Rhei Rhizoma, Magonoliae Cortx, Moutan Cortex Radicis. Rats were treated with the WK-38 intragastrically at 0 mg/kg, 5 mg/kg, 50 mg/kg, 500 mg/kg or 2,000 mg/kg and observed for two weeks. No mortality was observed at the doses used. Abnormal clinical signs such as eye bleeding, nasal bleeding and hyperemia had been shown temporary after administration. All rats were appeared to be healthy and normal during the 2 week observation. Also there was no difference in net body weight gain, gross pathological findings, and urine analysis among the groups rats treated with different doses of the WK-38.

죽상경화증(atherosclerosis)의 예방과 치료를 목적으로 조성된 새로운 한방처방인 WK-38을 웅성과 자성 랫트에 투여하여 급성독성을 평가하였다. WK-38은 대황 (大黃, Rhei Rhizoma), 후박 (厚朴, Magonoliae Cortx), 목단피 (牧丹皮, Moutan Cortex Radicis)의 복합물로 구성되었다. 실험동물에게 5 mg/kg, 50 mg/kg, 500 mg/kg 또는 2,000 mg/kg을 경구로 투여한 후 2주간 치사, 임상증상 및 체중증가 등을 관찰하였다. 투여된 WK-38모든 용량에서 사망하는 개체는 없었다. 일시적이나 용량 의존적으로 WK-38투여 군에서 혈루 (eye bleeding), 코피 (nasal bleeding) 및 귀에 충혈현상 (hyperemia) 이 관찰되었으며, 이러한 현상은 투여 후 3시간 이내에 소실되었고, 이후 14일 동안 특이한 임상증상은 없었다. 관찰 기간 중 시험동물의 체중의 증가, 육안적 부검소견, 뇨검사 모든 지표에서 WK-38 투여군과 대조군간의 차이가 없었다.

Keywords

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