Category Biology/Biotechnology

Turning the gut microbiome into a longevity factory

New research finds that low doses of the antibiotic cephalordine induces the cps operon in bacteria, visualized in red. This operon is responsible for synthesizing colanic acids, resulting in attenuation of age-related metabolic changes. Credit: Meng Wang

A team of researchers has found a way to turn the bacteria living in the digestive tracts of animals into factories that can produce compounds that promote longevity in their hosts—showing a potential new drug development strategy.

Janelia Senior Group Leader Meng Wang and her team study longevity and were interested in seeing how they could transfer their research findings about longevity-promoting compounds into practical applications.

One idea they had was to induce the body’s gut microbiota—a collection of bacteria in th...

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NAD⁺ restores memory in Alzheimer’s disease models by correcting RNA errors

NAD⁺ restores memory in Alzheimer's' disease models by correcting RNA errors
NR induces transcription of genes involved in axon development, oxygen metabolism, mitochondrion localization, and autophagy in tauopathy mice. GO terms enriched in each of the eight classes of clusters in (A); each circular bar graph represents one cluster or class of clusters, and bar length correlates with the number of DEGs represented. GO terms shown in red font relate to mRNA. Clusters 4 and 5 are similar and are grouped together. Class 1 includes clusters 1, 2, and 6 marked with red. Class 2 includes clusters 4 and 5 marked with orange. Class 3 includes cluster 8 marked with yellow. GTPase, guanosine triphosphatase; NAD(P)H, reduced form of NAD phosphate; IRES, internal ribosomal entry site; GTP, guanosine 5′-triphosphate; MHC, major histocompatibility complex. Credit: Science A...
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A little-known desert berry may hold the key to fighting diabetes

Scientists may have uncovered a surprising new weapon in the fight against diabetes: the fruit of an ancient desert plant. Known as Nitraria roborowskii Kom, this resilient shrub has long been used in traditional medicine but has only recently gained scientific attention. In modern experiments, its fruit extract displayed a remarkable ability to reverse insulin resistance and restore healthy metabolism in diabetic mice.

The results went far beyond stabilizing blood sugar. Researchers found that the extract also corrected lipid imbalances and reduced oxidative stress, two major complications of diabetes. These effects were linked to the activation of a key cellular signaling pathway that helps regulate metabolism...

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Urolithin A nudges aging immune cells toward a youthful profile in 28 days

Urolithin A nudges aging immune cells toward a youthful profile in 28 days
Secondary end point—UA alters inflammatory immune response. Credit: Nature Aging (2025). DOI: 10.1038/s43587-025-00996-x

An international research team focused on aging reports that urolithin A at 1,000 mg per day shifted human immune profiles toward a more naive-like, less exhausted CD8+ state and increased fatty acid oxidation capacity, with additional functional gains.

Urolithin A is a metabolite produced by gut bacteria after breaking down ellagic acid from certain foods, such as pomegranates and walnuts. While produced naturally through microbial digestion, it is in much smaller quantities than available as a supplement or used in the study.

Aging bodies face reduced production of mature T cells, shrinking naive T cell pools and chronic low-grade inflammation...

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