Tau is a protein abundant in nerve cells, and its abnormal forms are linked to brain deterioration in Alzheimer's disease and other neurological conditions. Researchers investigated how tau affects mitochondria, the cell's energy-producing structures, and whether interrupting that interaction could protect neurons. The study combined animal models, human neurons grown from stem cells, and brain tissue collected after death from people with and without tau-related disorders, including Alzheimer's disease. In animal and cell experiments, researchers altered tau and examined whether reverse elect... alzheimer's dementia mitochondria neurodegeneration neurons
Read moreSome brain tumors remain incurable even after surgery, radiation, and chemotherapy and are often linked to a short life expectancy. To explore a potential new therapy, researchers analyzed long-term data from an earlier brain tumor vaccine trial to determine whether the treatment was associated with longer survival and improved tumor control. The original trial enrolled 33 adults with newly diagnosed astrocytoma, a brain tumor named for its resemblance to astrocytes, star-shaped cells that help support nerve cells by supplying nutrients and maintaining a healthy environment around them. Their... brain cancer immune system vaccine
Read moreSulforaphane, a compound generated from precursors found in cruciferous vegetables, has attracted interest for its potential effects on cancer biology. Researchers tested whether a supplement designed to generate sulforaphane in the body could alter tumor-related markers in men with prostate cancer. The double-blind study randomly assigned 41 men with prostate cancer awaiting surgery to remove the prostate to receive either a daily placebo or a broccoli-derived supplement containing 240 mg of glucoraphanin plus myrosinase for four weeks. Together, these ingredients generate sulforaphane after ... cancer prostate sulforaphane
Read moreCreatine is best known as a muscle supplement, but a new study examined whether it can also support immune cells involved in cancer defense. The researchers focused on dendritic cells, a type of immune cell that helps alert the immune system by presenting antigen fragments from viruses, bacteria, and tumors to T cells, which can then mount responses against infected or abnormal cells. The work combined cell experiments with an animal tumor model. In mouse dendritic cells, the researchers tested whether the ability to take up creatine affected cell survival, immune signaling, and the activatio... cancer creatine
Read moreEarly depressive symptoms often precede major depressive disorder, but preventive strategies that target underlying brain biology are scarce. In a randomized trial, researchers examined whether daily morning bright light exposure could reduce symptoms while altering brain imaging markers related to the glymphatic system, which moves cerebrospinal fluid through channels surrounding blood vessels in the brain to help clear metabolic waste. The study followed 110 adults aged 18 to 28 who had persistent depressive symptoms but did not meet the full criteria for major depressive disorder. Participa... circadian rhythm depression
Read moreBrain atrophy occurs naturally with aging, but certain factors such as type 2 diabetes, high blood pressure, and inflammation can accelerate this process, increasing the risk of cognitive decline. However, eating a healthy diet may help slow brain aging. A recent study found that two versions of the Mediterranean diet reduced markers of brain atrophy by 50% over 18 months compared to general healthy eating guidelines. Researchers assigned participants aged 50 or older with abdominal obesity or abnormal blood lipids to one of three diets: one that followed standard healthy dietary guidelines,... brain diet aging polyphenol
Read moreObesity is characterized by chronic low-grade inflammation, which contributes to the development of cardiovascular disease. While processed foods and beverages high in saturated fats and simple sugars are associated with a higher risk of cardiovascular disease, diets rich in plant-based foods, including fruits, are associated with a lower risk. Findings of a recent report detail the effects of daily apple consumption on inflammation, endotoxemia, and metabolism. Causes of obesity-associated inflammation include leaky gut, a condition where the intestinal barrier is compromised, leading to inc... diet obesity inflammation polyphenol intestinal permeability endotoxemia lipopolysaccharide il-6
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