Category Biology/Biotechnology

AlphaFault: High schoolers give Fabled AI a Problem it Can’t Crack

Poster of the project Playing With AlphaFold2 at the School of Molecular and Theoretical Biology held by Skoltech online in 2021. Credit: Dmitry Ivankov/Skoltech

A bioinformatics boot camp for high schoolers at Skoltech turned into a venue for the latest chapter in the ongoing contest between humans and artificial intelligence in science. Having earlier resolved a key 50-year-old problem of structural bioinformatics, the breakthrough AI program AlphaFold proved inapplicable to another challenge researchers in this field are faced with.

This finding is reported in a PLOS ONE study, whose authors refute the claims by some AlphaFold enthusiasts that DeepMind’s AI has mastered the ultimate protein physics and is the be-all and end-all of structural bioinformatics.

Structural bioinfor...

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Study shows how to Prevent a High-fat Diet from throwing Metabolism out of whack

Study shows how to prevent a high-fat diet from throwing metabolism out of whack
SAPS3 brings the PP6 catalytic subunit to dephosphorylate AMPK. Credit: Nature Communications (2023). DOI: 10.1038/s41467-023-36809-1

Eating lots of fats increases the risk of metabolic disorders, but the mechanisms behind the problem have not been well understood. Now, University of California, Irvine biologists have made a key finding about how to ward off harmful effects caused by a high-fat diet. Their study appears in Nature Communications.

The UC Irvine research centered on a protein complex called AMPK, which senses the body’s nutrition and takes action to keep it balanced. For example, if AMPK detects that glucose is low, it can boost lipid breakdown to produce energy in its place...

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Study to decode Microbe-Gut Signaling suggests potential New Treatment for IBD

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Harmful intestinal inflammation might be prevented with a one-two punch. Fresh insights into how our bodies interact with the microbes living in our guts suggest that a two-drug combination may offer a new way to treat inflammatory bowel diseases such as Crohn’s disease and ulcerative colitis.

The potential treatment pathway emerges from a study led by experts at Cincinnati Children’s published online March 28, 2023, in the Journal of Experimental Medicine. Co-first authors were Garrett Overcast, PhD, and Hannah Meibers, BS. Corresponding author was Chandrashekhar Pasare, DVM, PhD, Division of Immunobiology and co-director, Center for Inflammation and Tolerance.

The research team conducted numerous experiments to learn about how immune cells located in the lining of the intestin...

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A Miniature Heart in a Petri Dish: Organoid emulates development of the human heart

Developmental stages of cardiac organoids visualized in fluorescence imaging.
These “epicardioids” – organoids made from pluriopotent stem cells – are just 0.5 millimeters in size. Researchers can use them to mimic the development of the human heart in the laboratory and study hereditary heart diseases.

A team at the Technical University of Munich (TUM) has induced stem cells to emulate the development of the human heart. The result is a sort of “mini-heart” known as an organoid. It will permit the study of the earliest development phase of our heart and facilitate research on diseases.

The human heart starts forming approximately three weeks after conception. This places the early phase of heart development in a time when women are often still unaware of their pregnancy...

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