Effects of testosterone on the orchidectomized rats
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
The aim of this study was to determine the changes of body weight, organ weight, hematological values and biochemical parameters by testosterone (Testos) on the orchidectomized (Orch) rats. The animals were divided into 4 groups. Intact group (n=10) received no treatment and operation. Sham group (n=10)received only sham operation and no treatment. Orch group received operation and no treatment. Orch+Testos received operation and testosterone. The body weights of each group increased, but that of Orch+Testos group was significantly lower in Orch+Testos group than in all the other groups. There were significant differences (P⁄0.05, P⁄0.001) of body weights between Orch+Testos group and all the other groups. Also, organ weights such as heart, liver, spleen and kidney were measured. The heart weights were significantly lower (P⁄0.001) in the Orch+Testos group than in all the other groups. The liver weights in the Orch+Testos group were significantly differences in comparison with those in the Sham (P<0.001) and Orch group (P⁄0.05). On the other hand, there were no significantly differences in the organ weights of spleen and kidney between the Orch+Testos group and the any other groups. The hematological values of white blood cell (WBC), red blood cell (RBC), mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH) and mean corpuscular hemoglobin concentration (MCHC) were no significant differences in any other groups. The concentrations of serum total protein and albumin increased significantly (P⁄0.05) in the Orch+Testos group as compared to that in the Orch group. However, there were no significant differences in Ca, IP and Mg in any other groups. We conclude that testosterone was significantly decreased the body weight in the orchidectomized rats. Our findings suggest that testosterone may influence the process of lipid packaging and absorption in the orchidectomized rats.
Abstract
The aim of this study was to determine the changes of body weight, organ weight, hematological values and biochemical parameters by testosterone (Testos) on the orchidectomized (Orch) rats. The animals were divided into 4 groups. Intact group (n=10) received no treatment and operation. Sham group (n=10)received only sham operation and no treatment. Orch group received operation and no treatment. Orch+Testos received operation and testosterone. The body weights of each group increased, but that of Orch+Testos group was significantly lower in Orch+Testos group than in all the other groups. There were significant differences (P⁄0.05, P⁄0.001) of body weights between Orch+Testos group and all the other groups. Also, organ weights such as heart, liver, spleen and kidney were measured. The heart weights were significantly lower (P⁄0.001) in the Orch+Testos group than in all the other groups. The liver weights in the Orch+Testos group were significantly differences in comparison with those in the Sham (P<0.001) and Orch group (P⁄0.05). On the other hand, there were no significantly differences in the organ weights of spleen and kidney between the Orch+Testos group and the any other groups. The hematological values of white blood cell (WBC), red blood cell (RBC), mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH) and mean corpuscular hemoglobin concentration (MCHC) were no significant differences in any other groups. The concentrations of serum total protein and albumin increased significantly (P⁄0.05) in the Orch+Testos group as compared to that in the Orch group. However, there were no significant differences in Ca, IP and Mg in any other groups. We conclude that testosterone was significantly decreased the body weight in the orchidectomized rats. Our findings suggest that testosterone may influence the process of lipid packaging and absorption in the orchidectomized rats.
참고문헌 (17)
- Basaria S, "Androgen abuse in athletes: detection and consequences", J Clin Endocrinol Metab, 95(4), pp.1533~1543 (2010)
- Behre HM, "Long-term effect of testosterone therapy on bone mineral density in hypogonadal men", J Clin Endocrinol Metab, 82(8), pp.2386~2390 (1997)
- Carani C, "Effect of testosterone and estradiol in a man with aromatase deficiency", N Engl J Med, 337(2), pp.91~95 (1997)
- Clarke BL, "Androgens and bone", Steroids, 7(3), pp.296~305 (2009)
- del Campo L, "Orchidectomy increases the formation of non-endothelial thromboxane A2 and modulates its role in the electrical field stimulation-induced response in rat mesenteric artery", J Endocrinol, 197(2), pp.371~379 (2008)
- Erben RG, "Androgen deficiency induces high turnover osteopenia in aged ale rats: a sequential histomorphometric study", J Bone Miner Res, 15(6), pp.1085~1098 (2000)
- Evuarherhe O, "Organizational role for pubertal androgens on adult hypothalamic-pituitary-adrenal sensitivity to testosterone in the male rat", J Physiol, 587(12), pp.2977~2985 (2009)
- Ewing LL, "Effect of luteinizing hormone on Leydig cell structure and testosterone secretion", Endocrinology, 112(5), pp.1763~1769 (1983)
- Gentile MA, "Androgen-mediated improvement of body composition and muscle function involves a novel early transcriptional program including IGF1, mechano growth factor, and induction of {beta}-catenin", J Mol Endocrinol, 44(1), pp.55~73 (2010)
- Guo CY, "Treatment of isolated hypogonadotropic hypogonadism effect on bone mineral density and bone turnover", J Clin Endocrinol Metab, 82(2), pp.658~665 (1997)
- Hope WG, "Testosterone alters duodenal calcium transport and longitudinal bone growth rate in parallel in the male rat", Proc Soc Exp Biol Med, 200(4), pp.536~541 (1992)
- Keeney DS, "Effect of long term deprivation of luteinizing hormone on Leydig cell volume, Leydig cell number, and steroidogenic capacity of the rat testis", Endocrinology, 123(6), pp.2906~2915 (1988)
- Sarkar NN, "Hormonal profiles behind the heart of a man", Cardiol J, 16(4), pp.300~306 (2009)
- Wakley GK, "Androgen treatment prevents loss of cancellous bone in the orchidectomized rat", J Bone Miner Res, 6(4), pp.325~330 (1991)
- Vandenput L, "The estrogen receptor ligand ICI 182,780 does not impair the bonesparing effects of testosterone in the young orchidectomized rat model", Calcif Tissue Int, 70(3), pp.170~175 (2002)
- Zirkin BR, "Regulation of Leydig cell steroidogenic function during aging", Biol Reprod, 63(4), pp.977~981 (2000)
- Zuckerman-Levin N, "Androgen replacement therapy in Turner syndrome: a pilot study", J Clin Endocrinol Metab, 94(12), pp.4820~4827 (2009)
