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Nutrition AND Oncology AND Microbiome

Clodagh L Murphy, Paul W O╩╝Toole, Fergus Shanahan
The gut microbiota has emerged as an important consideration in clinical oncology. The role of the microbiome in cancer extends beyond causation and cancer risk. It is now known that the microbiome not only acts at a local epithelial level in the gut but also modifies immune responses within intestinal and extraintestinal tumors. Microbial signaling influences the clinical course of cancer including the efficacy, bioavailability, and toxicity of chemotherapeutic and immunotherapy agents. This has focused research on microbiota profiling in different cancer states with an aim of developing prognostic biomarkers of risk...
January 17, 2019: American Journal of Gastroenterology
Benjamin Chin-Yee, S V Subramanian, Amol A Verma, Andreas Laupacis, Fahad Razak
Policy Points: Significant advances in clinical medicine that have broader societal relevance may be less accessible to population health researchers and policymakers because of increased specialization within fields. We describe important recent clinical advances and discuss their broader societal impact. These advances include more expansive strategies for disease prevention, the rise of precision medicine, applications of human microbiome research, and new and highly successful treatments for hepatitis C infection...
June 2018: Milbank Quarterly
Igor Cervenka, Leandro Z Agudelo, Jorge L Ruas
Kynurenine metabolites are generated by tryptophan catabolism and regulate biological processes that include host-microbiome signaling, immune cell response, and neuronal excitability. Enzymes of the kynurenine pathway are expressed in different tissues and cell types throughout the body and are regulated by cues, including nutritional and inflammatory signals. As a consequence of this systemic metabolic integration, peripheral inflammation can contribute to accumulation of kynurenine in the brain, which has been associated with depression and schizophrenia...
July 28, 2017: Science
Debra Lynch Kelly, Debra E Lyon, Saunjoo L Yoon, Ann L Horgas
BACKGROUND: Approximately 1.6 million Americans were diagnosed with cancer in 2014. To combat their disease, many individuals received either curative or palliative treatments that produced undesired symptoms. These symptoms, which often cause significant distress for individuals coping with cancer, may share biologic underpinnings such as epigenetic changes and immune dysregulation. Alterations in the normal flora of the gut may also influence cancer symptoms. OBJECTIVE: The aim of this review is to describe the emerging role for the gut microbiome in cancer research, especially the potential relationship between the gut microbiome and cancer symptoms...
May 2016: Cancer Nursing
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