Nowadays several papers deal with the effectiveness and side effects of metal complexes, especially cisplatin, in cancer therapy. The excretion of essential metal elements from the body is a serious problem in the treatment, but there are no data concerning the distribution and metabolism of toxic and nonessential elements. Therefore our aim was to study the concentration of some of these elements after treatment with cisplatin. Male Wistar rats (n=20, 175-190 g) were randomly divided into 2 groups (n=10/group). The control group received 1% (w/v) methyl cellulose at 10 mL/kg body weight, p.o. by gastric gavage twice daily for 14 days, while cisplatin was injected i.p. in a single dose of 6.5 mg/kg body weight. Inductively coupled plasma optical emission spectrometry (ICP-OES) was used for measuring Al, B, Ba, Cr, Li, Ni, Pb, Pt, Sb, Si, Sn, Sr and V content in plasma, liver and kidney. Liver total scavenger capacity, diene conjugate content and malondialdehyde concentration were also determined. Cisplatin elevated the free radical reactions in the liver, although redox balance did not change significantly. According to the study it seems that the metabolism of Al, Ba, Cr, Ni, Pb, Sr were changed by the effect of cisplatin, and the most notable alterations were found for Al and Pb. Therefore, besides the toxic effect of and free radical induction by Pt, the side effects of increased levels of other toxic and non-essential elements have to be taken into consideration.
Metals are accumulated mainly in the kidney during cancer therapy with metal complexes. Since liver is the most important organ for metabolism of the chemicals, the function of it can determine the effectiveness of therapy because of joint side effect of different chemicals in the liver. Therefore our aim was to study the concentration of essential elements Ca, Co, Cu, Fe, K, Mg, Mn, Mo, Na, P, S, Zn and antioxidant status in liver of rats after treatment with cisplatin and CV247 product which contains Cu and Mn gluconate, ascorbic acid and Na salicylate. Male Wistar rats (n=40, 175-190 g) were randomly divided into 4 groups (n=10/group). The control group received 1% (w/v) methyl cellulose at 10 mL/kg body weight, p.o. by gastric gavage twice daily for 14 days, while cisplatin was injected i.p. in a single dose of 6.5 mg/kg body weight. The CV247 treated group received 3 mL CV247/kg body weight, p.o. twice daily for 14 days. The forth group of rats was treated with cisplatin and CV247 in the mentioned doses. Inductively coupled plasma optical emission spectrometry (ICP-OES) was used for measuring Ca, Co, Cu, Fe, K, Mg, Mn, Mo, P, S, Zn in the liver and total scavenger capacity and diene conjugate content were also determined. Element depletion was found in the liver of both rat groups treated with CV247, nevertheless the oxidative stress caused by cisplatin was diminished by CV247. But these results pay attention to the importance of essential element, such as Ca and Mg supply as well in cancer therapy.
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