• K. TYKHONOVYCH Poltava State Medical University, Poltava, Ukraine
  • T. KRYVORUCHKO Poltava State Medical University, Poltava, Ukraine
  • N. NIKITINA Educational and Scientific Centre «Institute of Biology and Medicine», Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
  • S. BEREHOVYI Educational and Scientific Centre «Institute of Biology and Medicine», Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
  • K. NEPORADA Poltava State Medical University, Poltava, Ukraine



paclitaxel, peripheral neuropathy, salivary glands, oxidative stress, vitamins, niacin, thiamine, cobalamin


Background. Paclitaxel is a highly effective chemotherapeutic agent used to treat breast, ovarian, and other cancers. At the same time, paclitaxel causes peripheral neuropathy as a side effect in 45%—70% of patients. Aim. The aim of the study was to investigate the effect of paclitaxel-induced peripheral neuropathy on the development of pathological changes in the salivary glands of animals and to explore the possibility of correction of the identified changes with vitamin B/ATP complex. Materials and Methods. To simulate toxic neuropathy, animals were injected i/p with paclitaxel 2 mg/kg for 4 days. In order to correct the identified changes, rats were injected i/m with vitamin B/ATP complex (1 mg/ kg) for 9 days. In the homogenate of the submandibular salivary glands, α-amylase activity, total proteolytic activity, total antitryptic activity, the content of medium mass molecules, thiobarbituric acid reactive substances (TBARS), oxidatively modified proteins, and catalase activity were determined. Results. A significant increase in the content of oxidatively modified proteins, medium mass molecules, and the content of TBARS and significant decrease in the activity of catalase and amylase were determined in the salivary glands of animals with toxic neuropathy compared to these parameters in intact animals. Administration of vitamin B/ATP complex for 9 days against the background of paclitaxel-induced neuropathy led to normalization of antitryptic activity and amylase activity, a significant decrease in the content of oxidatively modified proteins, medium mass molecules, and TBARS along with a significant increase in catalase activity in the salivary glands of animals compared to the untreated rats with neuropathy. Conclusion. Paclitaxel-induced neuropathy caused the development of pathological changes in the salivary glands of rats, which was evidenced by a carbonyl- oxidative stress and impaired protein synthetic function. The correction with vitamin B/ATP complex restored the protein-synthetic function and the proteinase-inhibitor balance, suppressed the oxidative stress and normalized free radical processes in the salivary glands of rats.


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