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DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person’s body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).

Researchers trace metabolic superpowers of hibernators to shared DNA

Animals that hibernate are incredibly resilient. They can spend months without food or water, muscles refusing to atrophy, body temperature dropping to near freezing as their metabolism and brain activity slow to a crawl.

1 Aug 2025

Study finds rapid spread of antibiotic-resistant bacteria among malnourished children in Niger

A new study led by researchers at the Ineos Oxford Institute for antimicrobial research (IOI) has found that antimicrobial resistant bacteria is spreading rapidly among children being treated for severe malnutrition in a hospital facility in Niger.

1 Aug 2025

Salk Institute's ShortStop revolutionizes genetic search

Proteins sustain life as we know it, serving many important structural and functional roles throughout the body. But these large molecules have cast a long shadow over a smaller subclass of proteins called microproteins.

1 Aug 2025

Researchers uncover PSAT1 gene as key to heart repair post-heart attack

Heart attacks remain a leading cause of death and disability worldwide. The permanent loss of heart muscle cells-known as cardiomyocytes-and the heart's limited regenerative capacity often led to chronic heart failure.

1 Aug 2025

Chemotherapy treatment linked to lasting cognitive changes in rats

Researchers at The City College of New York have linked chemotherapy treatment to lasting cognitive changes in rats – potentially shading light, for the first time, on cognitive problems some cancer survivors experience long after treatment ends.

31 Jul 2025

Selective impairment of translation contributes to brain aging in killifish

Aging selectively impairs the production of crucial DNA- and RNA-binding proteins, which contributes to hallmarks of aging in the brains of killifish, according to a new study.

31 Jul 2025

New treatment shows promise in protecting brain following stroke reperfusion

Cambridge scientists have developed and tested a new drug in mice that has the potential to reduce damage to the brain when blood flow is restored following a stroke.

31 Jul 2025

T cell senescence shapes cancer prognosis and immunotherapy response

T cell senescence occurs in the TME, affecting cancer prognosis and immunotherapy efficacy. The TME induces T cell senescence through multiple pathways, including persistent stimulation by tumor-associated antigens, metabolic pathway alterations, activation of chronic inflammatory responses, proliferation of immunosuppressive cells, and T cell damage caused by tumor radiotherapy and chemotherapy.

31 Jul 2025

Scarred liver tissue creates fertile ground for cancer development

Over 80% of hepatocellular carcinoma (HCC) – the third-leading cause of cancer deaths globally – emerges from advanced liver fibrosis or cirrhosis. A comprehensive review in Hepatology International synthesizes decades of research to reveal how scarred liver tissue becomes a breeding ground for cancer.

31 Jul 2025

Cancer cells use energy surge to survive physical squeezing

Cancer cells mount an instant, energy‑rich response to being physically squeezed, according to a study published in the journal Nature Communications.

31 Jul 2025

Promega Plasmid Collection, available through Addgene, equips industry and academic researchers with powerful bioluminescent assays that provide deeper insights into endogenous cellular biology

Addgene, a purpose-driven organization helping scientists conduct experiments with greater ease, speed, and reproducibility, today announced a strategic partnership with Promega to expand Addgene’s vast plasmid repository with the launch of the Promega Plasmid Collection.

From Promega Corporation 31 Jul 2025

Immunocompromised people are susceptible to skin cancer caused directly by beta-HPV

Researchers at the National Institutes of Health (NIH) have shown for the first time that a type of human papillomavirus (HPV) commonly found on the skin can directly cause a form of skin cancer called cutaneous squamous cell carcinoma (cSCC) when certain immune cells malfunction.

30 Jul 2025

Study identifies risk factors for second colorectal cancer in people with Lynch syndrome

A current study by the German Familial Colorectal Cancer Consortium is looking at the question of which people with Lynch syndrome are at an increased risk of developing a second colorectal cancer.

30 Jul 2025

Innovative nanopore system enables controlled DNA unzipping

DNA holds the instructions that make us who we are. If we want to read those instructions, say to understand our predisposition to genetic disorders, we need to carefully 'unzip' DNA's iconic double-helix structure.

30 Jul 2025

New platform predicts antibiotic resistance before it hits the clinics

Multidrug resistant bacteria kill five million people each year, with newly resistant germs emerging faster than scientists can develop treatments.

30 Jul 2025

Antiviral treatment shows no benefit for early Alzheimer’s patients

The idea that herpes infections trigger or contribute to Alzheimer's disease has been gaining favor among some scientists, raising hope that herpes treatments could slow progression of Alzheimer's symptoms among patients.

30 Jul 2025

Vanderbilt team explores functional β-cell enhancement for diabetes

If it has seemed like more people you know are developing diabetes, you are right. The diabetes epidemic is not called that for nothing: According to the American Diabetes Association, over 10 percent of the U.S. population-approximately 38.4 million people-had diabetes in 2021, and 1.2 million more people get diagnosed each year.

30 Jul 2025

Genetic profiling offers hope for understanding multiple sclerosis risk

In a major step towards early detection, University of South Australia researchers are investigating the biology behind multiple sclerosis (MS) to help predict people's genetic risk of developing the disease, long before any symptoms appear.

29 Jul 2025

New RNA therapy reverses symptoms of progeria in mouse models

Children who develop deep wrinkles, stunted growth, and rapidly aging bones and blood vessels as early as 1 to 2 years of age may be suffering from Hutchinson-Gilford Progeria Syndrome (HGPS), a rare and incurable genetic disorder that affects approximately one in eight million people.

29 Jul 2025