Effect of DEHP Administration on Reproduction in Pregnant Mice Ⅱ. Effect of DEHP Administration on Reproductive Characteristic and Blood Components in Pups Born after DEHP Administration in Pregnant Mice

임신중인 생쥐에 DEHP 투여가 번식현상에 미치는 영향 Ⅱ. 임신중인 생쥐에 DEHP 투여가 자손의 번식특성과 혈액성분에 미치는 영향

The objective of this study was to assess that the effects of DEHP administration on reproductive characteristics and blood hematological and chemical values in pups born after DEHP administration in pregnant mice. DEHP was administrated to pregnant mice by intraperitoneally injection with 0, 0.5, 1.0 and 10.0mg/kg B.W, 5 times at 3 days interval from Day 1 to Day 16 in the gestation period. The body weight and reproductive organ weight(testis, epididymis and coagulating gland) in male pups on 45 day after birth was not affected in all experimental groups, but vesicular gland in DEHP groups was significantly lower than that of control group(P<0.05). The semen characteristics of male pups were not affected in DEHP treatment groups. The WBC, HB, HT, MCH and albumin values in male pups were not affected in all experimental groups, but RBC MCV, MCHC, PLT and total protein values were significantly different among the experimental groups(P<0.05). In female pups, the effects of DEHP administration were not affected the body and uterus weight, but the left ovary in 10.0mg DEHP group was significantly heavier than in control and 0.5mg DEHP group(P<0.05). The WBC, MCV, MCH, MCHC, PLT, albumin, BUN and total protein values in female were not different in all experimental groups. The RBC, HB and HT values were significantly different among the experimental gruop(P<0.05). The historical evaluation of testis in male pups that were grown to 45 days after birth was not different in all experimental groups. The ovary in female pups had many corpus luteum in 10.0mg DEHP group. The endometriosisi of uterus was significantly decreased in DEHP group. There results suggest that low concentration of DEHP administration in pup born after DEHP administration in pregnant mice was not affered on reproductive characteristic, but was affected on blood hematological and chemical values.

본 연구는 임신한 생쥐에 DEHP의 투여가 자손의 번식특성과 혈액성분에 미치는 영향을 검토하였으며 그결과는 다음과 같다. 임신기에 DEHP의 투여가 웅성 자손의 체중, 번식기관 무게 및 정액 성상에 미치는 결과는 투여구간에 커다란 차이가 없었다. 임신기에 DEHP의 투여가 웅성 자손의 혈액 성상에 미치는 영향을 조사한 결과, WBC, HB, HT, MCH 및 albumin은 투여구간에 차이가 없었으나, RBC MCV, MCHC, PLT 및 total protein은 각 투여구간에 통계적으로 유의적인 차이가 나타났다. 임신기에 DEHP의 투여가 자성 자손의 체중, 자궁 및 오른쪽 난소의 무게에 미치는 영향을 조사한 결과, 각 투여구간에 커다란 차이가 없었지만, 왼쪽 난소의 무게는 10.0mg 투여구가 대조구와 0.5mg 투여구에 비해 통계적으로 유의하게 높은 무게를 나타냈다. 임신기에 DEHP의 투여가 자성 자손의 혈액성상에 미치는 영향을 조사한 결과, RBC, HB 및 HT는 각 투여구간에 커다란 차이가 없었다. 임신기에 DEHP의 투여가 자손의 정소, 난소 및 자궁의 조직에 미치는 영향을 조사한 결과,정소에서는 투여구간에 차이가 없었으며, 난소에서는 10.0mg 투여구가 여타구보다 많은 황체를 가지고 있었으며, 자궁에서는 대조구에 비해 DEHP의 투여농도가 증가할수록 자궁내막층이 감소했으며, 1.0mg 투여구와 10.0mg 투여구는 대조구에 비해 뚜렷한 자궁내막층의 감소가 있었다.