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The Micronucleus Test of the Diglyceride Preparation with Conjugated Linoleic Acid by Using Mice

마우스를 이용한 공액리놀레산 함유 디글리세라이드 조성물에 대한 소핵시험

  • Published : 2008.07.31

Abstract

To assess the clastogenic effects of the diglyceride preparation containing conjugated linoleic acid (DG+CLA) in vivo micronucleus test was performed using ICR mice. Each of the groups consisted of three doses of DG+CLA (500, 1,000 and 2,000 mg/kg, p.o.), Mitomycin C (positive control, 2 mg/kg, i.p.) and negative control (olive oil, 10 mL/kg, p.o.). A slide preparation was made at 24 hours after 1st treatment with DG+CLA. As a result of counting the icronucleated polychromatic erythrocyte (MNPCE) of 2,000 polychromatic erythrocyte (PCE), the number of aberrant cells was not increased in any of the three doses of DG+CLA orally administered. There was no clinical sign connected with administration of DG+CLA. These results indicate that DG+CLA is not capable of inducing micronuclei in vivo mice cells and thus has no genotoxicity in micronucleus.

시험물질 공액리놀렌산이 함유된 디글리세라이드 식용유지 조성물의 마우스에 대한 소핵유발시험을 실시하였다. 시험물질 500, 1,000, 2,000 mg/kg의 용량과 음성대조군 및 양성대조군인 Mitomycin C 2 mg/kg 투여군을 설정한 후, 음성대조군과 시험물질군은 경구투여 하였고, 양성대조군은 복강투여 하여 최종 투여 후 24시간 후에 대퇴골로부터 골수세포를 채취, 도말하였다. 골수검체는 5% Giemsa액으로 염색하며 소핵유발빈도를 검경하였다. 시험결과 마우스 골수세포를 이용한 소핵시험에서, 모든 시험물질군의 다염성적혈구(Polychromatic erythrocyte, PCE) 중 소핵다염성적혈구(Micronucleated polychromatic erythrocyte, MNPCE)의 출현율은 음성대조군과 비교하여 통계학적으로 유의성 있는 증가는 관찰되지 않았다. 한편, 양성대조군의 다염성적혈구 중 소핵다염성적혈구의 출현율은 음성대조군과 비교하여 현저한 증가가 인정되었다. PCE/(PCE+NCE)의 비는 시험물질군과 음성대조군을 비교하였을 때 통계학적으로 유의한 차이는 관찰되지 않았다. 음성대조군 및 양성대조군의 소핵유발빈도는 historical control date의 정상범위에 있었기 때문에 본시험은 적절한 조건하에서 실시되었음이 확인 되었다. 따라서 본 시험 조건하에서 시험물질인 공액리놀렌산이 함유된 디글리세라이드 조성물은 마우스 골수세포의소핵유발에 영향을 주지 않는 것으로 판단된다.

Keywords

References

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