TITLE

Changes in blood parameters in New Zealand White rabbits during pregnancy

AUTHOR(S)
Mizoguchi, Yasumoto; Matsuoka, Tetsuya; Mizuguchi, Hiroyasu; Endoh, Takako; Kamata, Ryo; Fukuda, Kazuya; Ishikawa, Tsutomu; Asano, Yuzo
PUB. DATE
January 2010
SOURCE
Laboratory Animals;Jan2010, Vol. 44 Issue 1, p33
SOURCE TYPE
Academic Journal
DOC. TYPE
Bibliography
ABSTRACT
Changes in clinical pathology parameters, particularly those related to blood coagulation, were examined throughout the gestation period in New Zealand White rabbits. As compared with the non-pregnant group, the following major changes were observed in the pregnant group. For blood coagulation-related parameters, platelets increased progressively and fibrinogen increased slightly from organogenesis, prothrombin time was significantly prolonged during organogenesis and shortened in the late fetal growth stage, activated partial thromboplastin time was significantly prolonged during the fetal growth stage, and antithrombin III increased during and after late organogenesis. Such changes in blood coagulation-related parameters during the later stages of gestation seem to be physiological responses in preparation for protecting against excessive haemorrhage or haemostasis at parturition. For the other haematological and blood chemical parameters as well as progesterone, red blood cell counts, haemoglobin and haematocrit began to decrease during organogenesis and continued to decrease thereafter. Reticulocyte counts significantly increased during organogenesis and decreased thereafter. White blood cell parameters, except for neutrophils, showed significant decreases during the fetal growth stage. Serum progesterone concentration reached its highest level early in organogenesis and decreased thereafter. Total protein, albumin, glucose, cholesterol, calcium, blood urea nitrogen and creatinine decreased significantly during the middle and/or late periods of gestation. In conclusion, the data obtained from the present study can be used as background data for effective evaluation of reproductive toxicology in rabbits, and pregnant rabbits may serve as models of pregnant women in research pertaining to clinical pathology and gestation.
ACCESSION #
48415837

 

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