What you eat can affect how well immune therapies work against cancer. High-fiber diets may change gut microbes and make these therapies more effective, but taking probiotics could do the opposite.
Researchers looked at people with melanoma skin cancer who were getting a kind of immune therapy called PD-1 blockade or checkpoint inhibition (SN: 10/27/18, p. 16). Those who ate a high-fiber...
Martha Carlin married the love of her life in 1995. She and John Carlin had dated briefly in college in Kentucky, then lost touch until a chance meeting years later at a Dallas pub. They wed soon after and had two children. John worked as an entrepreneur and stay-at-home dad. In his free time, he ran marathons.
Almost eight years into their marriage, the pinky finger on John’s right hand...
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The U.S.S. Leviathan set sail from Hoboken, N.J., on September 29, 1918, carrying roughly 10,000 troops and 2,000 crewmen. The ship, bound for the battlefields in France, had been at sea less than 24 hours when the first passengers fell ill. By the end of the day, 700 people had developed signs of the flu.
The medical staff tried to separate the sick from the healthy, but that soon...
A long-dead Scandinavian woman has yielded bacterial DNA showing that she contracted the earliest known case of the plague in humans.
DNA extracted from the woman’s teeth comes from a newly identified ancient strain of Yersinia pestis, the bacterium that causes plague, the oldest ever found. The woman’s bones, which date from 5,040 to 4,867 years ago, were found nearly 20 years ago in a...
An acid found in rich humus soil breaks down the misfolded brain proteins — called prions — that cause chronic wasting disease.
When concentrations of humic acid similar to those found in soils were applied to diseased elk brain tissue, chemical signatures of the infectious prions were nearly erased, researchers report online November 29 in PLOS Pathogens. That suggests that the acid...
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Losing one variety of gut bacteria may lead to type 2 diabetes as people age.
Old mice have less Akkermansia muciniphila bacteria than young mice do, researchers report November 14 in Science Translational Medicine. That loss triggers inflammation, which eventually leads cells to ignore signals from the hormone insulin. Such disregard for insulin’s message to take in glucose is known as...