Category Health/Medical

Fat: A new player expands our definition of Diabetes

Protein Kinase C Epsilon Deletion in Adipose Tissue, but Not in Liver, Improves Glucose Tolerance

Protein Kinase C Epsilon Deletion in Adipose Tissue, but Not in Liver, Improves Glucose Tolerance

A new study by Australian researchers, out today, is challenging what we know about the causes of diabetes. The new research points to fat tissue as a source of disease, and widens our understanding beyond the traditional focus on liver and pancreas as the main culprits. The findings, uncovered in mice, are published in the high-impact journal Cell Metabolism.

The new research is centred around the surprising finding that protein kinase C epsilon (PKCε), known to be involved in diabetes, isn’t acting in the liver or the pancreas as was once assumed. Researchers have long known that PKCε is important for the development of diabetes...

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Human Retinas grown in a Dish explain how Color Vision develops

Temporally regulated TH signaling specifies cone subtypes. (A) Embryonic stem cell–derived human retinal organoids [wild type (WT)] generate S and L/M cones. Blue, S-opsin; green, L/M-opsin. (B) Organoids that lack thyroid hormone receptor β (Thrβ KO) generate all S cones. (C) Early activation of TH signaling (WT + T3) specifies nearly all L/M cones. (D) TH-degrading enzymes (such as DIO3) expressed early in development lower TH and promote S fate, whereas TH-activating regulators (such as DIO2) expressed later promote L/M fate.

Temporally regulated TH signaling specifies cone subtypes.
(A) Embryonic stem cell–derived human retinal organoids [wild type (WT)] generate S and L/M cones. Blue, S-opsin; green, L/M-opsin. (B) Organoids that lack thyroid hormone receptor β (Thrβ KO) generate all S cones. (C) Early activation of TH signaling (WT + T3) specifies nearly all L/M cones. (D) TH-degrading enzymes (such as DIO3) expressed early in development lower TH and promote S fate, whereas TH-activating regulators (such as DIO2) expressed later promote L/M fate.

Biologists at Johns Hopkins University grew human retinas from scratch to determine how cells that allow people to see in color are made...

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Engineers develop process to 3D print cells to produce Human Tissue such as Ligaments and Tendons

This image of cells that were made fluorescent shows how they are printed in complex structures for the purpose of producing tissue such as tendons and ligaments. Credit: Robby Bowles/University of Utah College of Engineering

This image of cells that were made fluorescent shows how they are printed in complex structures for the purpose of producing tissue such as tendons and ligaments.
Credit: Robby Bowles/University of Utah College of Engineering

Scientists have developed a method to 3D print cells to produce human tissue such as ligaments and tendons to greatly improve a patient’s recovery. A person with a badly damaged ligament, tendon, or ruptured disc could simply have new replacement tissue printed and ultimately implanted in the damaged area.

“It will allow patients to receive replacement tissues without additional surgeries and without having to harvest tissue from other sites, which has its own source of problems,” says University of Utah biomedical engineering assistant professor Robby Bowles, who co-a...

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Probiotic Bacillus Eliminates Staphylococcus bacteria – Additional studies of common supplement planned.

Exclusion of S. aureus colonization by dietary Bacillus in a human population.

Exclusion of S. aureus colonization by dietary Bacillus in a human population.

A new study from National Institutes of Health scientists and their Thai colleagues shows that a “good” bacterium commonly found in probiotic digestive supplements helps eliminate Staphylococcus aureus, a type of bacteria that can cause serious antibiotic-resistant infections. The researchers, led by scientists at NIH’s National Institute of Allergy and Infectious Diseases (NIAID), unexpectedly found that Bacillus bacteria prevented S. aureus bacteria from growing in the gut and nose of healthy individuals. Then, using a mouse study model, they identified exactly how that happens. Researchers from Mahidol University and Rajamangala University of Technology in Thailand collaborated on the project.

“Probiotics fre...

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