Tag: Healthy Aging

Skin cells taken from patients with a rare genetic disorder are up to ten times more sensitive to damage from ultraviolet A (AVA) radiation in laboratory tests, than those from a healthy population, according to new research from the University of Bath. It is hoped that the work, which has involved designing a brand new

“Beer before wine and you’ll feel fine; wine before beer and you’ll feel queer” goes the age-old aphorism. But scientists have now shown that it doesn’t matter how you order your drinks — if you drink too much, you’re still likely to be ill. Most people will at some point in their life experience one

Researchers at Stanley Manne Children’s Research Institute at Ann & Robert H. Lurie Children’s Hospital of Chicago, and colleagues, discovered a promising direction toward understanding the development of necrotizing enterocolitis (NEC), a devastating intestinal disease commonly affecting premature infants, in order to treat it. Studying the early cellular events leading to NEC in a mouse

A South American tribe living in near-total isolation with no Western dietary influences showed no increase in average blood pressure from age one to age 60, according to a study led by researchers at Johns Hopkins Bloomberg School of Public Health. In comparison, a nearby tribe whose diet includes some processed foods and salt did

Repetition is the best method for memorization, for neurons themselves. This is the principle behind what neurobiologists call sequence reactivations: during sleep, neurons in the hippocampus related to a task activate very quickly in turn in a precise order, which consolidates the memory of this task. Sequence reactivations are fundamental for long-term memorization and for

Ninety-one nations are not producing enough children to maintain their current populations, while the opposite is true in 104 countries where high birth rates are driving population increases, according to a new scientific study. Total fertility rates (TFR), a summary measurement representing the average number of children a woman would deliver over her lifetime, have

The most common tests for glaucoma can underestimate the severity of the condition by not detecting the presence of central vision loss, according to a new Columbia University study. The study, published Nov. 8 in JAMA Ophthalmology, found that administering a variation of the visual field test that better assesses macular damage can improve diagnosis

In a breakthrough human study, anti-oxidant, glutathione (GSH), which protects the brain from stress, has been found to be significantly depleted in Alzheimer’s patients compared to normal subjects. As GSH is a very important anti-oxidant that protects the brain from free radicals, the findings give us another measure to use when diagnosing potential for the

Simulations with animal models meant to mirror galactic cosmic radiation exposure to astronauts are raising red flags for investigators at Georgetown University Medical Center (GUMC) about the health of astronauts during long voyages, such as to Mars. Their most recent study, published in the Proceedings of the National Academy of Sciences (PNAS), suggests that deep

Researchers at King’s College London have discovered a vicious feedback loop underlying brain degeneration in Alzheimer’s disease which may explain why so many drug trials have failed. The study also identifies a clinically approved drug which breaks the vicious cycle and protects against memory-loss in animal models of Alzheimer’s. Overproduction of the protein beta-amyloid is

Scientists report they were unable to reproduce the results of a well-known study showing that people are less likely to cheat on a task after making a list of the Ten Commandments. Their findings are published in a Registered Replication Report (RRR) in Advances in Methods and Practices in Psychological Science, a journal of the

The physical abilities of male and female tennis stars decline at the same rate as they age, new research shows. Men and women are known to have different patterns of ageing — so University of Exeter scientists were surprised to find “similar patterns of decline” among tennis professionals. Using data on first-serve speed and accuracy

Testing how well people remember past events in their lives could help medical professionals make early predictions about who is at risk for developing Alzheimer’s disease, according to a new study from the University of Arizona. Researchers administered an “autobiographical memory” test to a group of 35 healthy adults, about half of whom carry the

Continuous mass distribution of azithromycin in northern Ethiopia, where the childhood eye infection trachoma is a major cause of blindness, is effective in preventing recurrence of trachoma but does not eliminate the infection entirely, according to a new study in PLOS Medicine by Jeremy Keenan and colleagues from the University of California in San Francisco,

A study published in the August 2018 issue of the Journal of the American Academy of Child and Adolescent Psychiatry(JAACAP) reports on a group of boys diagnosed with ADHD in childhood (when they were, on average, 8 years old) and followed into adulthood (when they were in their early 40s). The goal was to examine

Two new studies published by investigators from Brigham and Women’s Hospital illustrate that not all forms of amyloid-beta (Aβ) protein — the protein thought to initiate Alzheimer’s disease — play an equally menacing role in the progress of the disease. Using a new way of preparing and extracting the protein as well as a new

Aging vessels connecting the brain and the immune system play critical roles in both Alzheimer’s disease and the decline in cognitive ability that comes with time, new research reveals. By improving the function of the lymphatic vessels, scientists at the University of Virginia School of Medicine have dramatically enhanced aged mice’s ability to learn and

Commonly-prescribed opioid-based painkillers led to harmful side effects tripling in people with dementia. Researchers from the University of Exeter, King’s College London and the University of Bergen are presenting two studies at the Alzheimer’s Association International Conference 2018 (AAIC) highlighting a significant increase in harmful side effects related to the use of commonly prescribed opioid

It is currently recommended in Europe that screening for hepatitis C virus (HCV) should target people at high risk of infection. In France, public health data suggest that in 2014 approximately 75,000 people aged 18 to 80 were infected by HCV, but were unaware of their status. In at least one in ten cases, these

Every cell and every organism ages sooner or later. But why is this so? Scientists at the German Cancer Research Center in Heidelberg have now discovered for the first time a protein that represents a central switching point in the aging process. It controls the life span of an individual — from the fly to