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Abstract Title:

Aerobic training and hydroalcoholic extracts of green tea improve pro-oxidant-antioxidant balance and histopathological score in the N-methyl-N-nitrosourea-induced prostate cancer model of rat.

Abstract Source:

EXCLI J. 2020 ;19:762-772. Epub 2020 Jun 8. PMID: 32636729

Abstract Author(s):

Zakaria Vahabzadeh, Mohammadraman Molodi, Bahram Nikkho, Marziyeh Saghebjoo, Saber Saedmocheshi, Fatemeh Zamani, Yazdan Roshani, Sina Babanzadeh

Article Affiliation:

Zakaria Vahabzadeh

Abstract:

Green tea is a main resource for catechins. Catechins as antioxidant compounds reduce the production of reactive oxygen species and they have a protective role in the development of cancer. As well as, aerobic exercise change free radicals with two contradictory mechanisms. Aerobic training promotes excessive production of free radicals resulting in oxidative stress. In contrast, it increases the total antioxidant capacity. In this study, effect of aerobic training and hydroalcoholic extract of green tea (HEGT) on the pro-oxidant-antioxidant balance (PAB), prostate-specific antigen (PSA) and histopathological score of cancerous tissue in the N-methyl-N-nitrosourea-induced prostate cancer was investigated. A rat model of prostate cancer was induced by hormonal change and N-Nitroso-N-methylurea (NMU). HEGT 0.1 % and 45 min of aerobic exercise in 5 days a week for eight weeks were scheduled. The presence of major catechins was approved using GC-MS. Histological study, PAB and PSA levels were used to monitor the preventive role of treatments. The prostate weights of cancerous rats were significantly higher than healthy controls (P<0.05). The PAB was only significantly higher in cancerous rats and cancerous rats receiving aerobic exercise (P<0.05). The mean of histological score of cancerous tissue was reduced in rat receiving HEGT and both HEGT and aerobic exercise. The amounts of PSA level did not significantly differ between the groups of this study (P>0.05). Our results provided laboratory and histological documentation for the preventive role of green tea extract in developing prostate cancer via its potential to re-establish the pro-oxidant-antioxidant balance.

Study Type : Animal Study

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