This study investigated the effect of type II collagen extract on SD rats with deteriorated immunity caused by methotrexate. The test samples were dosed once a day for 28 days by gastric gavage at dosage 250 mg/kg and 500 mg/kg after methotrexate treatment, and the changes on body weight, total blood leukocyte numbers, the percentages of B-cells, CD4+ T-cells and CD8+ T-cells in the blood and spleen were observed. The changes on body weight, the total blood leukocyte numbers, the to-tal lymphocyte numbers in the spleen, the ratio of CD4+ and CD8+ T-cells in the blood and spleen were increased significantly in type II collagen extract groups as compared with the control group. According to the above results, type II collagen extract has an effect of increasing immune responses on rats with deteriorated immunity caused by meth-otrexate.
목차
Abstract INTRODUCTION MATERIALS AND METHODS Animals and reagents Classification of experimental groups Immune degradation using MTX Reagent administration Measurement of body weight Blood sampling Preparation of splenocytes Measurement of B cell ratio in the spleen Measurement of CD4+ and CD8+ T cell ratio in spleen and blood Cell culture Cell viability measurement Nitric oxide production measurement Statistical analysis RESULTS Body weight change measurement Changes in total leukocyte counts Measurement of CD4+ cell ratio in blood Measurement of CD8 + cell ratio in blood Measurement of B cell ratio in the spleen Measurement of CD4+ cell ratio in the spleen Measurement of CD8+ cell ratio in the spleen Measurement of cell viability Measurement of NO production DISCUSSION CONFLICT OF INTEREST ACKNOWLEDGMENTS REFERENCES
키워드
Type II collagen extractMethotrexateCD4+ T-cellsCD8+ T-cells
저자
Ee-Hwa Kim [ Deptartment of Meridian and Acupoint, College of Korean Medicine, Semyung University, Jecheon, Korea ]
Corresponding author
Yong-Min Kim [ Department of Oriental Medical and Herbal Cosmetic Sciences, Semyung University, Jecheon, Korea ]