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Dikeocha IJ, Al-Kabsi AM, Eid EEM, Hussin S, Alshawsh MA. Probiotics supplementation in patients with colorectal cancer: a systematic review of randomized controlled trials. Nutr Rev 2021; 80:22-49. [PMID: 34027974 DOI: 10.1093/nutrit/nuab006] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
CONTEXT Colorectal cancer (CRC) is a leading cause of cancer deaths. Recently, much attention has been given to the microbiome and probiotics as preventive and therapeutic approaches to CRC and the mechanisms involved. OBJECTIVES To interpret the findings of randomized controlled trials (RCTs) of probiotics relative to patients with CRC and to outline challenges of and future directions for using probiotics in the management and prevention of CRC. DATA SOURCES Web of Science, PubMed, ProQuest, Wile, y and Scopus databases were searched systematically from January 17-20, 2020, in accordance with PRISMA guidelines. STUDY SELECTION Primacy RCTs that reported the effects of administration to patients with CRC of a probiotic vs a placebo were eligible to be included. DATA EXTRACTION The studies were screened and selected independently by 2 authors on the basis of prespecified inclusion and exclusion criteria. The data extraction and risk-of-bias assessment were also performed independently by 2 authors. RESULTS A total of 23 RCTs were eligible for inclusion. Probiotics supplementation in patients with CRC improved their quality of life, enhanced gut microbiota diversity, reduced postoperative infection complications, and inhibited pro-inflammatory cytokine production. The use of certain probiotics in patients with CRC also reduced the side effects of chemotherapy, improved the outcomes of surgery, shortened hospital stays, and decreased the risk of death. Bifidobacteria and Lactobacillus were the common probiotics used across all studies. CONCLUSION Probiotics have beneficial effects in patients with CRC regardless of the stage of cancer. There is an opportunity for probiotics to be used in mainstream health care as a therapy in the fight against CRC, especially in early stages; however, larger clinical trialsof selected or a cocktail of probiotics are needed to confirm the efficacy, dosage, and interactions with chemotherapeutics agents. SYSTEMATIC REVIEW REGISTRATION PROSPERO registration no. CRD42020166865.
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Affiliation(s)
- Ifeoma Julieth Dikeocha
- I.J. Dikeocha, A.M. Al-Kabsi, and S. Hussin are with the Faculty of Medicine, University of Cyberjaya, Cyberjaya, Selangor, Malaysia. E.E.M. Eid is with the Department of Pharmaceutical Chemistry and Pharmacognosy, Unaizah College of Pharmacy, Qassim University, Unaizah, Saudi Arabia. M.A. Alshawsh is with the Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Abdelkodose Mohammed Al-Kabsi
- I.J. Dikeocha, A.M. Al-Kabsi, and S. Hussin are with the Faculty of Medicine, University of Cyberjaya, Cyberjaya, Selangor, Malaysia. E.E.M. Eid is with the Department of Pharmaceutical Chemistry and Pharmacognosy, Unaizah College of Pharmacy, Qassim University, Unaizah, Saudi Arabia. M.A. Alshawsh is with the Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Eltayeb E M Eid
- I.J. Dikeocha, A.M. Al-Kabsi, and S. Hussin are with the Faculty of Medicine, University of Cyberjaya, Cyberjaya, Selangor, Malaysia. E.E.M. Eid is with the Department of Pharmaceutical Chemistry and Pharmacognosy, Unaizah College of Pharmacy, Qassim University, Unaizah, Saudi Arabia. M.A. Alshawsh is with the Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Salasawati Hussin
- I.J. Dikeocha, A.M. Al-Kabsi, and S. Hussin are with the Faculty of Medicine, University of Cyberjaya, Cyberjaya, Selangor, Malaysia. E.E.M. Eid is with the Department of Pharmaceutical Chemistry and Pharmacognosy, Unaizah College of Pharmacy, Qassim University, Unaizah, Saudi Arabia. M.A. Alshawsh is with the Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Mohammed Abdullah Alshawsh
- I.J. Dikeocha, A.M. Al-Kabsi, and S. Hussin are with the Faculty of Medicine, University of Cyberjaya, Cyberjaya, Selangor, Malaysia. E.E.M. Eid is with the Department of Pharmaceutical Chemistry and Pharmacognosy, Unaizah College of Pharmacy, Qassim University, Unaizah, Saudi Arabia. M.A. Alshawsh is with the Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
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