Neurogenesis News and Research

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Neurogenesis (birth of neurons) is the process by which neurons are generated. Most active during pre-natal development, neurogenesis is responsible for populating the growing brain.

Older adults with higher polyphenol intake were less likely to have mild cognitive impairment

In a cross-sectional study of 92 older Italian memory-clinic patients, higher habitual intake of total dietary (poly)phenols and several specific subclasses was associated with a lower likelihood of mild cognitive impairment (MCI). Total (poly)phenol intake was not associated with cognitive test performance or circulating inflammatory biomarkers, and the authors cautioned that the small observational study cannot establish causality.

20 Sep 2026

Transplanted human cortical organoids filled most of a mouse cortex. Then they began to connect

Researchers created xenocortical mice by transplanting human cortical organoids into animals genetically depleted of much of their native cortex, allowing the human tissue to occupy most of the available cortical space and form anatomical connections throughout the host nervous system. The grafts developed diverse cortical cell types, including L5-ET and VEN-like neurons, generated organized neural activity, and produced measurable cellular and behavioral responses to hypoxic injury.

18 Sep 2026

Semaglutide extended lifespan in older female mice, but that was not the only finding

Late-life semaglutide treatment slowed age-related physiological decline, attenuated multiple molecular hallmarks of aging, and extended median lifespan from 742 to 834 days in aged female mice. The drug reproduced many effects of calorie restriction while providing additional benefits in exploratory behavior, spatial memory, and glucose control, suggesting that some effects extend beyond reduced calorie intake alone.

3 Sep 2026

Researchers found one childhood behavior linked to folic acid use before pregnancy

Researchers analyzed 646 children aged 2–8 years and their 563 mothers to examine whether maternal folic acid supplementation before conception was associated with childhood behavioral difficulties. Preconception supplementation was associated with a 34% lower risk of peer relationship problems, while no significant associations were found for total behavioral difficulties, emotional, conduct, hyperactivity/inattention, or prosocial problems.

1 Sep 2026

Probiotics for mental health? A new review finds promising signals and major gaps

This narrative review examines how psychobiotics may influence anxiety, depression, bipolar disorder, and schizophrenia through gut-brain pathways involving neurotransmitters, inflammation, immune regulation, gut barrier function, and stress signaling. Specific Lactobacillus and Bifidobacterium strains showed encouraging effects, but wide differences in strains, doses, populations, and study designs currently limit clinical translation.

28 Aug 2026

Neurogenesis stalls in the brains of adults with major depressive disorder, study shows

Most of our brain's 100 billion neurons are created before we're born, but the trickle of neurons created in the adult brain hippocampus could be instrumental in preventing depression, suggest findings from a new study by researchers at Columbia University Vagelos College of Physicians and Surgeons.

21 Aug 2026

Cocoa looks promising for mood, but the brain benefits come with a catch

A review of clinical and preclinical studies suggests cocoa polyphenols may support mood, neuroplasticity, cerebral blood flow, and gut-brain signaling through pathways involving BDNF/CREB, inflammation, and oxidative stress.

17 Aug 2026

Sprint exercise sends a very different molecular signal through the body

Sprint-interval exercise triggers a much larger and faster shift in circulating proteins and metabolites than moderate-intensity exercise, revealing distinct patterns of predicted communication between organs. The findings suggest that exercise intensity shapes systemic molecular signaling, with skeletal muscle and adipose tissue emerging as potential source and target tissues linked to cardiometabolic health.

16 Aug 2026

Nerve-tumor interactions emerge as a transformative frontier in oncology

A new review article highlights a rapidly emerging frontier in oncology: the dynamic and influential relationship between nerves and tumors.

6 Aug 2026

Neural stem cells split early into distinct neuron lineages

The cerebral cortex is densely packed with different nerve cells that enable us to perceive, think and act. Yet how these cell types arise while the brain develops is still not fully understood.

5 Aug 2026

Study offers insight into how long-term inflammation may contribute to cognitive decline

The King's College London study, published in Nature Communications, offers insight into how long-term inflammation may contribute to cognitive decline in disorders such as Alzheimer's disease, aging, depression, and the lingering neurological effects of viral infections.

7 Jul 2026

Prenatal high fructose exposure impairs brain development and memory

Nutritional imbalance during pregnancy can have long-lasting effects on the health status and disease susceptibility of the offspring.

2 Jul 2026

Study potential new therapeutic strategy for patients with ATRX-mutant gliomas

A new study from researchers at The University of Texas MD Anderson Cancer Center has uncovered how one of the most common genetic alterations in glioma rewires the cancer cell genome to fuel tumor progression, suggesting a potential new therapeutic strategy for patients with ATRX-mutant gliomas.

1 Jul 2026

Longer hormone exposure linked to healthier brain aging in women

Research indicates that hormonal therapies and later menopause are associated with increased brain volume and thickness, promoting healthier aging.

26 Jun 2026

Blueberries may boost children's memory and mood

Research suggests blueberry compounds could enhance mood and cognitive function in children, yet stronger evidence is required for clinical recommendations.

25 Jun 2026

Neural progenitor timing influences formation of distinct brain layers

The outer regions of the brain, the cortex, have specific layers of different cells - neurons - that are similarly ordered among all mammals, from tiny mouse brains to huge elephant brains.

26 May 2026

Regular arts and physical activity linked to slower aging

Research shows that leisure activities, including arts engagement and physical exercise, are linked to slower epigenetic aging and improved health outcomes.

14 May 2026

Tumors exploit peripheral nerves to support cancer growth and spread

Tumors do not communicate only with immune cells, blood vessels, and stromal tissue. A growing body of evidence suggests that cancer can also co-opt the nervous system, reshaping the tumor microenvironment in ways that support growth, invasion, immune escape, and therapeutic resistance.

10 May 2026

Unraveling the mystery of cognitive resilience in aging brains

Some brains resist Alzheimer's, even when the disease is already present. Researchers at the Netherlands Institute for Neuroscience have found that this likely depends on how specific brain cells, known as immature neurons, respond to damage caused by the disease.

24 Apr 2026

Calcium channel mutations disrupt early brain development and cause epilepsy

Researchers at Baylor College of Medicine have uncovered a previously unrecognized mechanism by which inherited calcium channel mutations disrupt early brain development and predispose children to epilepsy and related cognitive challenges.

3 Apr 2026