microbiota tagged posts

Treating the Gut-Brain Connection with B Vitamins to Treat Parkinson’s Disease

A study led by Nagoya University Graduate School of Medicine in Japan has revealed a link between gut microbiota and Parkinson’s disease (PD). The researchers found a reduction in the gut bacteria of genes responsible for synthesizing the essential B vitamins B2 and B7. They also identified a relationship between the lack of these genes and low levels of agents that help maintain the integrity of the intestinal barrier. This barrier prevents toxins from entering the bloodstream, which causes the inflammation seen in PD. Their findings, published in npj Parkinson’s Disease, suggest that treatment with B vitamins to address these deficiencies can be used to treat PD.

PD is characterized by a variety of physical symptoms that hinder daily activities and mobility, such as shaking, slow...

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Researchers Identify why Cancer Immunotherapy can cause Colitis

green background intestines in pink
Jacob Dwyer, Michigan Medicine

Researchers at the University of Michigan Health Rogel Cancer Center have identified a mechanism that causes severe gastrointestinal problems with immune-based cancer treatment.

They also found a way to deliver immunotherapy’s cancer-killing impact without the unwelcome side effect.

The findings are published in Science.

“This is a good example of how understanding a mechanism helps you to develop an alternative therapy that’s more beneficial. Once we identified the mechanism causing the colitis, we could then develop ways to overcome this problem and prevent colitis while preserving the anti-tumor effect,” said senior study author Gabriel Nunez, M.D., Paul de Kruif Professor of Pathology at Michigan Medicine.

Immunotherapy has emerged as a pr...

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Healthy Gut Bacteria can help Fight Cancer in other parts of the body, researchers find

Healthy gut bacteria can help fight cancer in other parts of the body, researchers find
Immune checkpoint therapy (ICT) helps gut microbiota travel from the gut to the lymph nodes where they activate immune cells (dendritic cells and T cells). Ultimately, both gut microbiota and activated immune cells then enter the tumor. When specific bacteria cannot travel to the lymph node and tumor and activate immune cells, immune checkpoint therapy is not effective. Credit: Science Immunology (2023). DOI: 10.1126/sciimmunol.abo2003

Researchers at UT Southwestern Medical Center have discovered how healthy bacteria can escape the intestine, travel to lymph nodes and cancerous tumors elsewhere in the body, and boost the effectiveness of certain immunotherapy drugs...

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A study confirms the Relationship between an Amino Acid present in Diet and Depression

Researchers from the Girona Biomedical Research Institute (IDIBGI) and Pompeu Fabra University (UPF) in Barcelona, Spain, have identified the role of an amino acid in humans, mice and flies suffering depression. It is proline, an amino acid that is present in a wide variety of foods. The results, published in the scientific journal Cell Metabolism, also associate the consumption of a proline-rich diet with a greater tendency to develop depression.

The study was led by Dr. José Manuel Fernández-Real and Dr. Jordi Mayneris-Perxachs, from the research group on Nutrition, Eumetabolism and Health at the IDIBGI and CIBEROBN, and Dr...

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