Lifeboat Foundation

A new one-off prostate cancer test at the age of 55 promises to give men “peace of mind” that they will never develop the disease, scientists have revealed.

The 10-minute scan, which could be rolled out in supermarkets and shopping centres, detects dangerous cancers years before they cause any harm while ignoring growths that do not pose a threat.

Subject to a government-funded trial beginning this summer, the new MRI (magnetic resonance imaging) technique should enable the world’s first universal screening programme for prostate cancer.

Continue reading “New prostate cancer test will give men ‘peace of mind’ that they will never develop the disease, scientists say” »

University of Maryland researchers analyzed an evolutionary tree reconstructed from the DNA of a majority of known bat species and found four bat lineages that exhibit extreme longevity. They also identified, for the first time, two life history features that predict extended life spans in bats.

Their work is described in a research paper, published in the April 10, 2019 issue of the journal Biology Letters, which concluded that horseshoe bats, long-eared bats, the common vampire bat and at least one lineage of mouse-eared bats all live at least four times longer than other, similarly sized mammals. The researchers also found that a high-latitude home range and larger males than females can be used to predict a given bat species’ life span.

“Scientists are very interested in finding closely related species in which one is long lived and one is short lived, because it implies that there has been some recent change to allow one species to live longer,” said Gerald Wilkinson, a biology professor at UMD and lead author of the paper. “This study provides multiple cases of closely related species with varying longevity, which gives us many opportunities to make comparisons and look for some underlying mechanism that would allow some species to live so long.”

Dr. Alan Green’s patients travel from around the country to his tiny practice in Queens, N.Y., lured by the prospect of longer lives.

Over the past two years, more than 200 patients have flocked to see Green after learning that two drugs he prescribes could possibly stave off aging. One 95-year-old was so intent on keeping her appointment that she asked her son to drive her from Maryland after a snowstorm had closed the schools.

Green is among a small but growing number of doctors who prescribe drugs “off-label” for their possible anti-aging effects. Metformin is typically prescribed for diabetes, and rapamycin prevents organ rejection after a transplant, but doctors can prescribe drugs off-label for other purposes — in this case, for “aging.”

Continue reading “The surprising way some people are fighting aging” »

A new study in mice finds a compound that boosts the effectiveness of the chemotherapy drug cisplatin and stops cancer cells from becoming resistant to it.

Summary: Extracting nanosized exosomes from bone marrow stem cells and injecting them into mice, researchers reverse symptoms of multiple sclerosis. Source: UC IrvineA nanotechnology treatment.

Survey finds that ‘normal’ human tissues are riddled with mutations.

A groundbreaking new cell reprogramming device can turn existing cells into any other type of cell, repairing tissue and organs in mice.

Future neutrino experiments may provide tomographic scans of Earth’s interior by viewing solar neutrinos that pass through our planet’s layers.

The Sun showers Earth with neutrinos, but this “glow” doesn’t dim when the Sun goes down. At night, solar neutrinos penetrate Earth, impinging detectors from below. Like x rays in a medical scanner, these planet-traversing neutrinos might offer information about the material they pass through. New theoretical calculations show that future experiments, such as the Deep Underground Neutrino Experiment (DUNE), could characterize the different layers inside Earth with neutrino-based tomography.

Researchers have discovered that the human body’s 3 trillion cells aren’t clones of a single DNA sequence, as is widely believed. Instead, the cells of the human body contain a plethora of altered DNA, called mutations. These multiply to produce patches of tissue, called “somatic clones,” inside the ‘normal’ tissue. The scientific term for this phenomenon is mosaicism.