Category Biology/Biotechnology

People with Rare Longevity Mutation may also be Protected from Cardiovascular Disease

Jaime Guevara-Aguirre, Valter Longo, and several of the Laron study participants at the USC Leonard Davis School in Los Angeles.
Jaime Guevara-Aguirre (back left), Valter Longo (back right), and several of the Laron study participants at the USC Leonard Davis School in Los Angeles.

Patients with growth hormone receptor deficiency, or Laron syndrome, appear to have lower than average risk factors for cardiovascular disease, according to a new study.

A new study highlights possible cardiovascular health advantages in individuals with a rare condition known as growth hormone receptor deficiency (GHRD), also called Laron syndrome.

GHRD, which is characterized by the body’s impaired ability to use its own growth hormone and results in stunted growth, has been linked in mice to a record 40% longevity extension and lower risks for various age-related diseases...

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Vitamin D Alters Mouse Gut Bacteria to give Better Cancer Immunity

Bacteroides fragilis
Photomicrograph showing Bacteroides fragilis, which normally lives in the human GI tract.   
Credit: CDC/ Dr. V.R. Dowell, Jr.

Researchers at the Francis Crick Institute, the National Cancer Institute (NCI) of the U.S. National Institutes of Health (NIH) and Aalborg University in Denmark have found that vitamin D encourages the growth of a type of gut bacteria in mice which improves immunity to cancer.

Reported today in Science, the researchers found that mice given a diet rich in vitamin D had better immune resistance to experimentally transplanted cancers and improved responses to immunotherapy treatment. This effect was also seen when gene editing was used to remove a protein that binds to vitamin D in the blood and keeps it away from tissues.

Surprisingly, the team found th...

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Cells may Possess Hidden Communication System

New research finds ion gradients across membranes form an information network for rapid cellular decision-making independent of DNA. Cells constantly navigate a dynamic environment, facing ever-changing conditions and challenges. But how do cells swiftly adapt to these environmental fluctuations? A new Moffitt Cancer Center study, published in iScience, is answering that question by challenging our understanding of how cells function. A team of researchers suggests that cells possess a previously unknown information processing system that allows them to make rapid decisions independent of their genes.

For decades, scientists have viewed DNA as the sole source of cellular information. This DNA blueprint instructs cells on how to build proteins and carry out essential functions...

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Scientists discover the Cellular Functions of a Family of Proteins Integral to Inflammatory diseases

Scientists discover the cellular functions of a family of proteins integral  to inflammatory diseases

In a scientific breakthrough, Mount Sinai researchers have revealed the biological mechanisms by which a family of proteins known as histone deacetylases (HDACs) activate immune system cells linked to inflammatory bowel disease (IBD) and other inflammatory diseases.

This discovery, reported in Proceedings of the National Academy of Sciences (PNAS), could potentially lead to the development of selective HDAC inhibitors designed to treat types of IBD such as ulcerative colitis and Crohn’s disease.

“Our understanding of the specific function of class II HDACs in different cell types has been limited, impeding development of therapies targeting this promising drug target family,” says senior author Ming-Ming Zhou, PhD, Dr...

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