Samelis G F, Stathopoulos G P, Kotsarelis D, Dontas I, Frangia C, Karayannacos P E
Hippokration Hospital, Oncology Department, School of Medicine, University of Athens, Greece.
Anticancer Res. 1998 Sep-Oct;18(5A):3305-9.
This study is related to the serious side effects of Doxorubicin-cardiotoxicity and serum lipid caused by the drug's cumulative effect. Studies were performed on experimental animals treated with intensive administration of Doxorubicin. Seventy five wistar rats were divided in two equal groups A and B. Group A was used for doxorubicin administration and B for doxorubicin and dextrazoxane. The drugs were administered weekly for twelve weeks at doses 0.2 mg/100 g BW for doxorubicin and 1.5 mg/100 g BW for dextrazoxane. Histological examination of the cardiac muscle, large vessels, liver and other organs and biochemical examination for serum lipids and liver enzymes were performed on certain weeks. Comparison of the findings of the two groups showed a) a reduction in doxorubicin cardiotoxicity by dextrazoxane and b) the addition of dextrazoxane to doxorubicin resulted in lowering the increase of serum lipids produced by doxorubicin. c) In vitro tests by chemiluminescence showed that dextrazoxane acts as a scavenger of oxygen free radicals.
本研究与阿霉素的严重副作用——心脏毒性以及由该药物累积效应导致的血脂有关。对接受大剂量阿霉素治疗的实验动物进行了研究。75只Wistar大鼠被平均分为A、B两组。A组用于阿霉素给药,B组用于阿霉素和右丙亚胺给药。药物每周给药一次,共12周,阿霉素剂量为0.2mg/100g体重,右丙亚胺剂量为1.5mg/100g体重。在特定周对心肌、大血管、肝脏和其他器官进行组织学检查,并对血脂和肝酶进行生化检查。两组结果比较显示:a) 右丙亚胺可降低阿霉素的心脏毒性;b) 阿霉素与右丙亚胺联用可降低阿霉素引起的血脂升高;c) 化学发光体外试验表明,右丙亚胺可作为氧自由基清除剂。