Category Biology/Biotechnology

Human Textiles to Repair Blood Vessels

Made entirely from biological material, these blood vessels would have the advantage of being well tolerated by all patients.© Nicolas L’Heureux

What if we could replace a patient’s damaged blood vessels with brand new ones produced in a laboratory? This is the challenge set by Inserm researcher Nicolas L’Heureux, who is working on the human extracellular matrix – the structural support of human tissues that is found around practically all of the body’s cells.

In a study published in Acta Biomaterialia, L’Heureux and his colleagues at the Tissue Bioengineering unit (Inserm/Université de Bordeaux) describe how they have cultivated human cells in the laboratory to obtain extracellular matrix deposits high in collagen – a structural protein that constitutes the mechanical scaffold...

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Superior ‘Bio-Ink’ for 3D Printing pioneered

This 3D printing system would print gel scaffolds, or support structures, for growing human tissues. The system would include hyaluronic acid and polyethylene glycol as the basic “ink cartridges” and other cartridges featuring inks with different cells and ligands that serve as binding sites for cells.
Image: Madison Godesky

Researchers are developing materials to help grow human tissues. Rutgers biomedical engineers have developed a “bio-ink” for 3D printed materials that could serve as scaffolds for growing human tissues to repair or replace damaged ones in the body.

Bioengineered tissues show promise in regenerative, precision and personalized medicine; product development; and basic research, especially with the advent of 3D printing of biomaterials that could serve as scaf...

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Natural Compound in Vegetables Helps fight Fatty Liver Disease

New research shows how indole can reduce inflammation, fatty deposits. A new study led by Texas A&M AgriLife Research scientists shows how a natural compound found in many well-known and widely consumed vegetables can also be used to fight fatty liver disease.

The study demonstrates how non-alcoholic fatty liver disease, or NAFLD, can be controlled by indole, a natural compound found in gut bacteria – and in cruciferous vegetables such as cabbage, kale, cauliflower and Brussels sprouts. It also addresses how this natural compound may lead to new treatments or preventive measures for NAFLD.

The study was recently published in Hepatology...

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Molecular ‘Switch’ Reverses Chronic Inflammation and Aging

A molecular modeling image showing the detector portion of the NLRP3 inflammasome in red, magenta, and yellow
The NLRP3 receptor protein is responsible for detecting potential pathogens in the body and launching an immune response. (Image by MLGProGamer123 via Wikimedia Commons)

Chronic inflammation, which results when old age, stress or environmental toxins keep the body’s immune system in overdrive, can contribute to a variety of devastating diseases, from Alzheimer’s and Parkinson’s to diabetes and cancer.

Now, scientists at the University of California, Berkeley, have identified a molecular “switch” that controls the immune machinery responsible for chronic inflammation in the body. The finding, which appears online Feb. 6 in the journal Cell Metabolism, could lead to new ways to halt or even reverse many of these age-related conditions.

“My lab is very interested in unde...

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