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  3. 185-189
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Pakistan Journal of Biological Sciences

Year: 2010 | Volume: 13 | Issue: 4 | Page No.: 185-189
DOI: 10.3923/pjbs.2010.185.189

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Authors


B. Yousefi

Country: Iran

H.R. Samene

Country: Iran

Keywords


  • fetal liver stage
  • late-yolk sac stage
  • Hematopoiesis
  • embryo
  • retinoic acid
  • WBC
Research Article

The Effects of All-Trans Retinoic Acid on Leukocytes in Rat's Embryo

B. Yousefi and H.R. Samene
This study was planned to determine the effects of All-Trans Retinoic Acid (ATRA) on the progenitors of White Blood Cells (WBC) and survey their outcomes in rat's embryo during both late-yolk sac and fetal liver stages of hematopoiesis. Single oral dose (100 mg kg-1) of ATRA was administered to rat on Gestation Day (GD) 10 and fetuses were observed on GD 18. The fetus's blood (from experimental group and control each, n = 24) were obtained directly from heart, as placental and mother circulation was continued and subsequently processed for Giemsa staining and followed by WBC counting and measuring. Statistical analysis was made by student t-test. A p-value<0.05 was considered significant. In the experimental embryos on GD 18, the mean number of WBC (29.2%), neutrophil, lymphocyte and monocyte were increased. There was a significant difference in WBC (p<0.0001) and neutrophil (p<0.001) between the groups in this regard. The mean diameter of neutrophil, lymphocyte and monocyte were compared in two groups. The results showed no significant change on experimental and control groups. We concluded that ATRA may have positive effects on proliferation, differentiation and maturation of neutrophil without having any significant effects on the diameter of cells throughout normal granulocyte differentiation in embryo during both late-yolk sac and fetal liver stages of hematopoiesis.
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How to cite this article

B. Yousefi and H.R. Samene, 2010. The Effects of All-Trans Retinoic Acid on Leukocytes in Rat's Embryo. Pakistan Journal of Biological Sciences, 13: 185-189.

DOI: 10.3923/pjbs.2010.185.189

URL: https://scialert.net/abstract/?doi=pjbs.2010.185.189

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