试验相关因素对SD大鼠血液学指标的影响

目的了解麻醉剂和应激反应对动物生理方面的影响,为动物福利、化合物的毒性检测方法规范化研究提供了可资借鉴的经验。方法选择SPF级SD大鼠为试验动物,按性别(A)、禁食时间(B)、麻醉方式(C)和采血方式(D)4个因素,根据不同因素交互影响分为24组,采集各组SD大鼠血液标本测定血液红细胞计数、血红蛋白水平、白细胞计数及其分类等指标。结果各因素对白细胞计数结果影响的主次顺序为DCAB,各因素水平白细胞计数结果是雄性大鼠雌性大鼠,静脉血动脉血,水合氯醛戊巴比妥钠不麻醉。各因素对白细胞分类结果影响的主次顺序为CD=A=B,各因素水平白细胞分类结果是水合氯醛戊巴比妥钠=不麻醉。各因素对红细胞计数与血红蛋白水平结果影响的主次顺序为CD=A=B,各因素水平红细胞计数与血红蛋白水平是戊巴比妥钠水合氯醛不麻醉,禁食时间各组间血液学指标无统计学差异。结论禁食对血液学指标无影响,血液学指标存在性别、动静脉差异;对白细胞计数及分类的影响水合氯醛麻醉大于戊巴比妥钠麻醉,而对红细胞计数及血红蛋白水平的影响是戊巴比妥钠麻醉大于水合氯醛麻醉,两种麻醉方式各有优缺点。

Effects of experiment-related factors on hematological parameters in SD rats

Objective To study the effects of experiment-related factors on hematological parameters in SD rats, analyze the data difference and causes, understand the effects of anesthetics and stress responses on the physiological aspects of animals, and to provide a reference for the standardization of animal welfare and compound toxicity testing methods. Methods According to gender (A), fasting time (B), anesthesia (C) and blood collection mode (D), SPF SD rats were divided into 24 groups. Blood samples were collected from each group. Then, red blood cell count, hemoglobin levels, white blood cell count and classification indicators were measured. Results The primary and secondary order of the factors affecting the white blood cell count was D > C > A > B, and the levels of white blood cell count of each factor were male rats > female rats, and venous blood > arterial blood, chloral hydrate > pentobarbital sodium > no anesthesia. The primary and secondary order of the factors affecting the white blood cell classification was C > D=A=B, and factors affecting the levels of white blood cell classification were chloral hydrate > pentobarbital sodium > no anesthesia. The primary and secondary order of the effects of the factors on the red blood cell count and hemoglobin level was C > D=A=B, and the levels of red blood cell count and hemoglobin level were pentobarbital sodium > chloral hydrate> no anesthesia. There was no significant difference in the blood indexes between the different fasting time groups. Conclusions There is no effect of fasting on hematological parameters, but there are differences in the blood parameters between arteries and veins. The effect of chloral hydrate anesthesia on the count and classification of white blood cells is greater than that of pentobarbital sodium. The effect of chloral hydrate anesthesia on the red blood cell count and hemoglobin level is greater than that of pentobarbital sodium. The two kinds of anesthesia methods have their own advantages and disadvantages.