Title:A Comprehensive Review of the Use of Antioxidants and Natural Products in Cancer
Patients Receiving Anticancer Therapy
Volume: 22
Issue: 8
Author(s): Daniel Sur*, Alecsandra Gorzo, Shanthi Sabarimurugan, Saravana Murali Krishnan , Cristian Virgil Lungulescu, Simona Ruxandra Volovat and Claudia Burz
Affiliation:
- Department of Medical Oncology, “Prof. Dr. Ion Chiricuta” Oncology Institute, Cluj-Napoca, Romania
- Department of Medical Oncology, Faculty of Medicine, “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
Keywords:
Antioxidants, natural products, cancer, chemotherapy, side effects, toxicity.
Abstract: Cancer is the leading cause of mortality and morbidity worldwide. The side effects of cancer treatment
affect the quality of life. Cancer patients search for antioxidant dietary supplements and natural products during or after
conventional cancer treatment for the alleviation of side effects, improvement of the benefits of treatment, and promotion
of well-being. However, the efficacy and safety of these products remain controversial; moreover, previous data
do not support the standardized use of those alternative treatments in clinics. The current study reviewed the manuscripts
reporting the administration of antioxidants and natural products during cancer treatment and revised preclinical
and clinical studies on various types of cancer. Most of the positive results were obtained from experimental animal
models; however, human clinical studies are discouraging in this regard. Therefore, further precise and distinguishable
studies are required regarding antioxidant dietary supplementation. Future studies are also needed to clarify dietary
supplements’ mechanism of action and pharmacokinetics in a suitable cancer patient population that will benefit the
therapeutic regimens. Despite the popularity of dietary supplements, clinicians and patients should always consider
their potential benefits and risks. Patients should discuss with their physician before taking any dietary antioxidant
supplements or natural products.