Kunming female mice were used and S180 sarcoma cells were transplanted subeutaneously into right anterior armpit or the mice. The mice were divided into three groups randomly, and orally administered with water, galli...Kunming female mice were used and S180 sarcoma cells were transplanted subeutaneously into right anterior armpit or the mice. The mice were divided into three groups randomly, and orally administered with water, gallium chloride and GaCl3+ Na2SeO3 respectively for 2 weeks. After that,the tumors and foreleg bones were taken out for study. The experimental results showed that oral administration with gallium chloride-could inhibit the growth or S180 sarcoma in mice and the tumor morphology was changed. Selenium could accelerate the gallium entering into bone. This fact might supply a new clue to further clinical application of gallium and selenium.展开更多
本文研究厂荷 S_(180)肉瘤小鼠体内腺苷脱氨酶(Adenosine deaminase,ADA)的活性变化及中药“消癌灵”对 ADA 活性的影响;①小鼠红细胞及腹水癌细胞内 ADA 活性均较正常小鼠增高;而胸腺内 ADA 活性却较正常小鼠降低;②荷瘤小鼠经灌胃给...本文研究厂荷 S_(180)肉瘤小鼠体内腺苷脱氨酶(Adenosine deaminase,ADA)的活性变化及中药“消癌灵”对 ADA 活性的影响;①小鼠红细胞及腹水癌细胞内 ADA 活性均较正常小鼠增高;而胸腺内 ADA 活性却较正常小鼠降低;②荷瘤小鼠经灌胃给予“消癌灵”后,其红细胞及腹水内 ADA活性明显降低;而胸腺内 ADA 活性却明显增高,表明 ADA 活性变化与肿瘤之间有密切关系。中药“消癌灵”能改变荷瘤小鼠体内 ADA 活性,具有一定的抗癌作用,这对于肿瘤防治的研究具有重要意义。展开更多
Background Activating on mammalian and human body LDR is thought to induce adaptive response, enhance immune function and increase anti-tumor ability. This study was designed to assess the effect of low-dose radiati...Background Activating on mammalian and human body LDR is thought to induce adaptive response, enhance immune function and increase anti-tumor ability. This study was designed to assess the effect of low-dose radiation on tumor growth and on erythrocyte immune function and superoxide dismutase (SOD) activity in tumor-bearing mice. Methods Male Kunming mice were subcutaneously implanted with S 180 sarcoma cells in the right inguen to create an experimental in situ animal model. Six hours before implantation, the mice were given 75 mGy X-ray radiation, over the body. Tumor size was observed 5 days later while tumor volume was calculated every other day, allowing for the creation of a graph depicting tumor growth. Fifteen days after implantation, the mice were killed to measure tumor weight and observe the necrotic areas and the location of tumor-infiltrating lymphocytes (TILs). Erythrocyte immune function and SOD activity were also determined. Results Mice pre-exposed to low-dose radiation had a lower tumor formation rate than did those receiving no radiation (P<0.05). Tumor growth was significantly lower in the mice pre-exposed to low-dose radiation; after 15 days, the average tumor weight in the mice pre-exposed to low-dose radiation was also lower (P<0.05). Areas of tumor necrosis and infiltration of TILs were larger in the low-dose radiation group than in the non-radiation group. Erythrocyte immune function and SOD activity were higher in the low-dose radiation group than in the non-radiation group (P<0.05). Conclusion Low-dose radiation can markedly increase the anti-tumor ability of an organism and improve erythrocyte immune function and red blood cell SOD activity as well, suggesting that low-dose radiation might be useful in the clinical treatment of cancer.展开更多
文摘Kunming female mice were used and S180 sarcoma cells were transplanted subeutaneously into right anterior armpit or the mice. The mice were divided into three groups randomly, and orally administered with water, gallium chloride and GaCl3+ Na2SeO3 respectively for 2 weeks. After that,the tumors and foreleg bones were taken out for study. The experimental results showed that oral administration with gallium chloride-could inhibit the growth or S180 sarcoma in mice and the tumor morphology was changed. Selenium could accelerate the gallium entering into bone. This fact might supply a new clue to further clinical application of gallium and selenium.
文摘本文研究厂荷 S_(180)肉瘤小鼠体内腺苷脱氨酶(Adenosine deaminase,ADA)的活性变化及中药“消癌灵”对 ADA 活性的影响;①小鼠红细胞及腹水癌细胞内 ADA 活性均较正常小鼠增高;而胸腺内 ADA 活性却较正常小鼠降低;②荷瘤小鼠经灌胃给予“消癌灵”后,其红细胞及腹水内 ADA活性明显降低;而胸腺内 ADA 活性却明显增高,表明 ADA 活性变化与肿瘤之间有密切关系。中药“消癌灵”能改变荷瘤小鼠体内 ADA 活性,具有一定的抗癌作用,这对于肿瘤防治的研究具有重要意义。
文摘Background Activating on mammalian and human body LDR is thought to induce adaptive response, enhance immune function and increase anti-tumor ability. This study was designed to assess the effect of low-dose radiation on tumor growth and on erythrocyte immune function and superoxide dismutase (SOD) activity in tumor-bearing mice. Methods Male Kunming mice were subcutaneously implanted with S 180 sarcoma cells in the right inguen to create an experimental in situ animal model. Six hours before implantation, the mice were given 75 mGy X-ray radiation, over the body. Tumor size was observed 5 days later while tumor volume was calculated every other day, allowing for the creation of a graph depicting tumor growth. Fifteen days after implantation, the mice were killed to measure tumor weight and observe the necrotic areas and the location of tumor-infiltrating lymphocytes (TILs). Erythrocyte immune function and SOD activity were also determined. Results Mice pre-exposed to low-dose radiation had a lower tumor formation rate than did those receiving no radiation (P<0.05). Tumor growth was significantly lower in the mice pre-exposed to low-dose radiation; after 15 days, the average tumor weight in the mice pre-exposed to low-dose radiation was also lower (P<0.05). Areas of tumor necrosis and infiltration of TILs were larger in the low-dose radiation group than in the non-radiation group. Erythrocyte immune function and SOD activity were higher in the low-dose radiation group than in the non-radiation group (P<0.05). Conclusion Low-dose radiation can markedly increase the anti-tumor ability of an organism and improve erythrocyte immune function and red blood cell SOD activity as well, suggesting that low-dose radiation might be useful in the clinical treatment of cancer.
