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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).

Can pregnancy leave a lasting mark on biological aging?

A review examines how pregnancy spacing affects maternal aging, proposing that insufficient recovery may lead to cumulative biological aging and health risks.

3 Nov 2026

Key innate immune protein regulates cholesterol and influences cancer treatment resistance

Scientists at the University of North Carolina Lineberger Comprehensive Cancer Center have discovered an unexpected role for a key innate immune protein, revealing how it helps regulate cholesterol levels inside cells and influences tumor growth and treatment response.

3 Nov 2026

Tumor mutations may help predict relapse risk in childhood leukemia

Some cases of the most common childhood cancer, B-cell acute lymphoblastic leukemia (B-ALL), return after treatment - and genetic changes present from the start may help explain why.

2 Nov 2026

Plant-derived compound helps restore cancer cells' sensitivity to treatment

A natural plant compound may help overcome a built-in defense that allows many cancers to resist a class of drugs designed to restore normal gene activity, according to a study by researchers at the Johns Hopkins Sidney Kimmel Comprehensive Cancer Center.

2 Nov 2026

New hormone receptor strategy offers targeted treatment for lupus

Researchers at the University of California, Riverside and City of Hope have identified a new strategy for treating systemic lupus erythematosus (SLE), or lupus, an autoimmune disease in which the immune system attacks healthy tissues.

2 Nov 2026

New computational tool simulates evolution of jumping genes

A genome contains all of the DNA of every living organism, but its contents don't stop there – most of these structures also contain snippets of DNA that can copy and paste themselves to "infect" a genome, expanding its size.

2 Nov 2026

New strategy exploits a hidden genetic vulnerability in multiple cancers

Researchers have found a surprisingly common vulnerability in a broad variety of cancers and have begun designing drug compounds to exploit it, in a study led by investigators at Weill Cornell Medicine.

2 Nov 2026

The type of fiber you eat shapes how gut bacteria feed and work together

A 2021 review examined how the chemical structure and physical properties of dietary fiber influence which gut bacteria can break it down and how microbial species compete and cooperate during fermentation. The authors described how these interactions contribute to short-chain fatty acid production, while emphasizing the need for further research involving intact plant foods to understand their implications for human health.

1 Nov 2026

Nanoscale particle shows potential as customizable delivery vehicle for personalized cancer vaccines

A nanoscale particle with a unique structure, developed at MIT, holds potential as a customizable delivery vehicle for personalized cancer vaccines.

30 Oct 2026

Skin organoids reveal how herpes simplex virus spreads between cells

Researchers at the Max Delbrück Center and University Medical Center Hamburg-Eppendorf have traced in skin organoids, how herpes simplex virus 1 infection progresses among neighboring skin cells, deepening our understanding.

30 Oct 2026

Hyperactive cancer-promoting proteins help tumor cells evade immune attack

The immune system may recognize a cancer cell and still fail to destroy it. Researchers at Hiroshima University and their international collaborators found that hyperactive YAP and TAZ (YAP/TAZ), two cancer-promoting proteins, were associated with genomic instability that may make cancer cells more recognizable to the immune system, while also increasing PD-L2, which helps the cells suppress T-cell attack.

30 Oct 2026

Targeting specific enzyme reverses radiation-induced immune suppression in cancer

Researchers at the University of Chicago identified a mechanism to make immune cells reprogrammed by radiation therapy attack tumors rather than protect them.

30 Oct 2026

Holistic family surroundings are essential for raising healthy children

A child's health is shaped by more than inherited genes or the food on the table. Family routines, relationships, cultural practices, and everyday conditions—from early school schedules to long commutes—also influence how children grow and thrive, according to an Ateneo de Manila University medical professor and clinician.

30 Oct 2026

Tailoring prostate cancer radiotherapy to body clock could cut long-term side effects

A study by Leicester researchers shows that the timing of radiotherapy treatment may be as important as how it is given for prostate cancer patients.

30 Oct 2026

Can broccoli sprouts help with insulin resistance? New review offers clues

A review published in the British Journal of Nutrition examines how carotenoids and bioactive compounds in Brassicaceae microgreens may influence obesity, insulin resistance, and type 2 diabetes through metabolic and inflammatory pathways. Small human trials involving broccoli sprouts have reported improvements in selected metabolic markers, but larger, longer-term studies are needed to establish their clinical benefits.

29 Oct 2026

Evolutionary changes in key enzyme help bacteria fine-tune protein synthesis

Evolutionary changes in key protein synthesis enzyme, isoleucyl-tRNA synthetase (IleRS), may help bacteria fine-tune how quickly proteins are made, report researchers from Institute of Science Tokyo, Japan; the University of Zagreb Faculty of Science, Croatia; and ETH Zürich, Switzerland.

29 Oct 2026

Amino acid restores power to last-resort antibiotics

Worldwide, antibiotic resistance is associated with millions of deaths every year, and the World Health Organization warns that the number of resistant infections is rising.

29 Oct 2026

Large genetic study uncovers new risk factors for Alzheimer's

A large-scale international study, led by Ole Andreassen at University of Oslo and Oslo University Hospital, in collaboration with international consortium, offers new insights for understanding the disease and developing future treatments.

29 Oct 2026

New mathematical method maps gene roles across different species

Much of what we know about biology comes from animal models, particularly mice. Applying these insights to humans, however, is not always straightforward.

29 Oct 2026

New microscopy platform enables deeper brain imaging without tissue damage

As light travels deeper into the brain, it scatters. Three-photon microscopy, the current state of the art, reduces the resulting background fluorescence and can, in principle, image much deeper than earlier techniques-but to do that, it uses average laser power limits that cause overheating and damage living tissue.

28 Oct 2026