Didebuladze N A, Sumbadze Ts M, Gvidiani S A, Korkiia I I
Georgian Med News. 2011 Dec(201):61-5.
The aim of this research is to study the dependence the gravity of diabetes course and the activity of the biosynthetical processes in the liver from the level of the sexual steroides in the male-rats blood on the model of the alloxan diabetes. The experiments were carried out on 80 male rats (weight 180-200g). The diabetes has been reproduced by the single injection of alloxan per 200mg/kg. The content of glucose, testosterone, estradiole and corticosterone have been determined in the blood of the animals. Activity of the syntheses of the nucleic acids in the liver has been researched by the radiometrical method on 14, 30, 45 and 90 days of the experiment. On all stages of the observation has been revealed the inverse relation between the concentration of the testosterone in the blood and the gravity of the experimental diabetes which was determined by the degree of hyperglycemya and the changes of the coefficient of sexual hormones ratio, the content of estradiol, corticosterone and activity of the syntheses of the nucleic acids in the tissue of the liver. The injection of the androgen during two week caused jump increasing the testosterone concentration, approaching the sexual steroids ratio to the norm, decreasing the glucose, estradiole, corticosterone content and also the reduction the nucleic acids syntheses activity in the liver. It was shown the positive influence of the androgens on development of the compensatory processes in the male rats, which course the decrease the experimental diabetes gravity.
本研究的目的是在四氧嘧啶糖尿病模型上,研究雄性大鼠血液中性甾体水平对糖尿病病程严重程度以及肝脏生物合成过程活性的依赖性。实验选用80只雄性大鼠(体重180 - 200克)。通过单次注射200毫克/千克四氧嘧啶诱导糖尿病。测定动物血液中葡萄糖、睾酮、雌二醇和皮质酮的含量。在实验的第14、30、45和90天,采用放射性测量法研究肝脏中核酸合成的活性。在观察的各个阶段,均发现血液中睾酮浓度与实验性糖尿病的严重程度呈负相关,糖尿病严重程度由高血糖程度以及性激素比例系数变化、雌二醇含量、皮质酮含量和肝脏组织中核酸合成活性来确定。连续两周注射雄激素导致睾酮浓度急剧升高,使性激素比例接近正常,降低了葡萄糖、雌二醇、皮质酮含量,并使肝脏中核酸合成活性降低。结果表明,雄激素对雄性大鼠代偿过程的发展具有积极影响,这一过程会减轻实验性糖尿病的严重程度。