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A new study reveals how sperm change their swimming patterns to navigate to the egg, shifting from a symmetrical motion that moves the sperm in a straight path to an asymmetrical one that promotes more circular swimming. This change in behavior, called hyperactivation, enables the sperm to sweep the area […]

The effectiveness of fecal microbiota transplantation (FMT) in treating ulcerative colitis depends on a small set of beneficial bacterial strains, suggests a new study from researchers at Weill Cornell Medicine and NewYork-Presbyterian. In the study, reported in Gastroenterology, the researchers sampled gut bacteria from healthy FMT donors and from FMT recipients […]

Senescent cell accumulation is a feature of aging, a growing imbalance between the rate of creation and rate of destruction. Senescent cells perform a number of useful tasks in the short-term, but when present for the long-term, their inflammatory secretions disrupt tissue function and contribute meaningfully to the onset and […]

Senolytic treatments are those that selectively destroy senescent cells, a form of intervention that has produced rejuvenation in older animals. A high dose of the flavonol fisetin is not yet proven to be usefully senolytic in humans, but has shown a surprising degree of efficacy in mice. The only senolytic […]

New study identifies molecular players in ‘dead man’s switch’ that triggers key immune organ’s regeneration after damage. The pandemic has put immune function — and how to boost it — at top of mind. Most recommendations for boosting immune responses focus on lifestyle choices, including adequate sleep, a solid exercise […]

An enormous amount of data can be derived from analysis of the cells and molecules found in a blood sample. Researchers will be kept busy for decades yet, ever more efficiently gathering and mining this data, in search of ways to assess the progression of aging and specific age-related diseases. […]

The practice of calorie restriction, eating fewer calories while still obtaining sufficient micronutrients, is well demonstrated to reduce cancer risk in animal models, and also appears to improve outcomes in the case of an established cancer. This is similarly the case for practices such as intermittent fasting or fasting mimicking […]

Many of the interventions demonstrated to produce interesting effects on the pace or state of aging are challenging to learn from. This is the case because these interventions change so much of the operation of metabolism as to make it hard to pick apart what is most relevant to the […]