Sandra Maria Barbalho1, Henrique Bosso2, Letícia M Salzedas-Pescinini2, Ricardo de Alvares Goulart3. 1. Medical School of Marília, UNIMAR, Marília, São Paulo, Brazil; Food Technology School, Marília, São Paulo, Brazil. Electronic address: smbarbalho@gmail.com. 2. Medical School of Marília, UNIMAR, Marília, São Paulo, Brazil. 3. Gastroenterology Department, University Hospital, ABHU, UNIMAR, Marília, São Paulo, Brazil.
Abstract
OBJECTIVE: this review aimed to investigate the effects of green tea polyphenols (GTP) in Ulcerative colitis and Crohn´s Disease. MATERIALS AND METHODS: The databases used were MEDLINE-and EMBASE (October 2009 to September 2018). Studies that reported the use of green tea and its effects on IBD were included. RESULTS: Ten articles were included in this review. DISCUSSION: GTP play a role in reducing TNF-α, Interleukin 1β (IL-1β), IL-6, IL-8, and 17; downregulate cyclooxygenase-mediated I kappa B kinase and transcription of NFκB. They regulate the pathways mediated by the Nuclear erythroid 2-related factor 2, mitogen-activated protein kinases, and signal transducer and the activator of transcription 1/3, and also minimize the lipid peroxidation. Furthermore, GTP can stimulate antioxidant enzymes. These actions reduce inflammatory and oxidant patterns in IBD resulting in improvement of the disease scores. CONCLUSIONS: We suggest that professionals and researchers take into account the use of GTP in further researches and in clinical practice in order to verify the real effects in humans.
OBJECTIVE: this review aimed to investigate the effects of green tea polyphenols (GTP) in Ulcerative colitis and Crohn´s Disease. MATERIALS AND METHODS: The databases used were MEDLINE-and EMBASE (October 2009 to September 2018). Studies that reported the use of green tea and its effects on IBD were included. RESULTS: Ten articles were included in this review. DISCUSSION: GTP play a role in reducing TNF-α, Interleukin 1β (IL-1β), IL-6, IL-8, and 17; downregulate cyclooxygenase-mediated I kappa B kinase and transcription of NFκB. They regulate the pathways mediated by the Nuclear erythroid 2-related factor 2, mitogen-activated protein kinases, and signal transducer and the activator of transcription 1/3, and also minimize the lipid peroxidation. Furthermore, GTP can stimulate antioxidant enzymes. These actions reduce inflammatory and oxidant patterns in IBD resulting in improvement of the disease scores. CONCLUSIONS: We suggest that professionals and researchers take into account the use of GTP in further researches and in clinical practice in order to verify the real effects in humans.
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