Category Health/Medical

Metabolites produced in intestine play central role in controlling obesity and diabetes, study shows

Metabolites produced in the intestine play a central role in controlling obesity and diabetes
Diagram summarizing the experiments, which analyzed metabolites present in the peripheral blood and hepatic portal vein of mice with different genetic histories of susceptibility to metabolic diseases after receiving a high-fat diet. Credit: Vitor Muñoz/EEFERP-USP

A study conducted at Harvard University identified a group of metabolites that travel from the intestine to the liver and then to the heart, where they are pumped throughout the body. These metabolites play an important role in controlling metabolic pathways in the liver and insulin sensitivity. This discovery may contribute to future treatments for obesity and type 2 diabetes. The results were published in the journal Cell Metabolism.

“The hepatic portal vein drains much of the blood from the intestine to the liver...

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Certain immune cell subtypes drive lupus, study finds

New immune cell suspects in lupus
scRNA-seq reveals altered cellular composition of CD4+ T cells in SLE. Credit: Nature Immunology (2025). DOI: 10.1038/s41590-025-02297-2

Detailed mapping of CD4⁺ T cells from children with systemic lupus erythematosus (SLE) has revealed distinct immune cell subsets with likely roles in disease pathogenesis, according to a study led by Weill Cornell Medicine investigators. The findings are poised to redirect lupus research and open the door to more precise therapies that avoid broad immune suppression.

Published in Nature Immunology, the study used single-cell RNA sequencing to profile CD4⁺ T-cell subtypes from children with SLE and healthy controls...

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Kimchi acts as a ‘precision regulator’ for the immune system, 12-week clinical trial suggests

The world's first elucidation of the immunomodulatory effects of kimchi by the World Institute of Kimchi
Immunoregulatory mechanisms of kimchi. Credit: World Institute of Kimchi (WiKim)

Amid concerns about the simultaneous spread of multiple respiratory diseases, such as colds and influenza, with the change of seasons in current times, a clinical study has scientifically proven that kimchi, a traditional Korean fermented food, enhances the function of human immune cells and maintains the balance of the immune system.

The World Institute of Kimchi has reported the results of a single-cell genetic analysis that suggests that kimchi consumption has immunomodulatory effects, which include the suppression of excessive immune responses while simultaneously enhancing defense functions.

The results of the research are published in npj Science of Food.

This is the first study in the world...

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Epigenetic changes regulate gene expression, but what regulates epigenetics?

A chromosome pulled from the flowers of Arabidopsis thaliana (green and white) unspools to reveal DNA (blue) coiled around packaging-proteins called histones (purple). The direction of epigenetic changes by genetic features begins as the RIM transcription factor (pink) docks on a corresponding DNA sequence (pink). Once docked, the RIM transcription factor directs methylation machinery to tack methyl groups (orange) onto specific nearby cytosines (orange).
Click here for a high-resolution image.
Credit: Salk Institute

All the cells in an organism have the exact same genetic sequence. What differs across cell types is their epigenetics—meticulously placed chemical tags that influence which genes are expressed in each cell...

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