Telomere Length of Cardiomyocytes in Wistar Rat Treated with Doxorubicin: In Vivo Experimental Study.

IF 0.9 4区 医学 Q4 MEDICINE, RESEARCH & EXPERIMENTAL
M A Asanov, A O Poddubnyak, A V Sinitskaya, M V Khutornaya, O V Khryachkova, M Yu Sinitsky
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引用次数: 0

Abstract

The effect of doxorubicin on the relative telomere length of cardiomyocytes in Wistar rats was studied. Doxorubicin (2 mg/kg body weight) was injected into the caudal vein once a week for 4 weeks, the control group was injected with 0.9% NaCl solution in an equivalent volume. The serum concentrations of proinflammatory cytokines (MCP-1 and TNFα), oxidative stress marker 8-hydroxydeoxyguanosine (8-OHdG), and telomerase reverse transcriptase (TERT) were measured. In rats treated with doxorubicin, the relative length of cardiomyocyte telomeres and serum levels of 8-OHdG were higher than the in control. Thus, molecular effects of subchronic low-dose doxorubicin exposure in rats were revealed: telomeric regions of cardiomyocyte DNA were lengthened, and the level of oxidative stress marker increased.

阿霉素对Wistar大鼠心肌细胞端粒长度的体内实验研究。
研究了阿霉素对Wistar大鼠心肌细胞相对端粒长度的影响。尾静脉注射阿霉素(2 mg/kg体重),每周1次,连续4周,对照组注射等体积0.9% NaCl溶液。测定血清促炎细胞因子(MCP-1、TNFα)、氧化应激标志物8-羟基脱氧鸟苷(8-OHdG)、端粒酶逆转录酶(TERT)浓度。阿霉素治疗大鼠心肌细胞端粒的相对长度和血清8-OHdG水平均高于对照组。由此,揭示了亚慢性低剂量阿霉素暴露大鼠的分子效应:心肌细胞DNA端粒区延长,氧化应激标志物水平升高。
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来源期刊
Bulletin of Experimental Biology and Medicine
Bulletin of Experimental Biology and Medicine 医学-医学:研究与实验
CiteScore
1.50
自引率
14.30%
发文量
265
审稿时长
2 months
期刊介绍: Bulletin of Experimental Biology and Medicine presents original peer reviewed research papers and brief reports on priority new research results in physiology, biochemistry, biophysics, pharmacology, immunology, microbiology, genetics, oncology, etc. Novel trends in science are covered in new sections of the journal - Biogerontology and Human Ecology - that first appeared in 2005. World scientific interest in stem cells prompted inclusion into Bulletin of Experimental Biology and Medicine a quarterly scientific journal Cell Technologies in Biology and Medicine (a new Russian Academy of Medical Sciences publication since 2005). It publishes only original papers from the leading research institutions on molecular biology of stem and progenitor cells, stem cell as the basis of gene therapy, molecular language of cell-to-cell communication, cytokines, chemokines, growth and other factors, pilot projects on clinical use of stem and progenitor cells. The Russian Volume Year is published in English from April.
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