Tag: ScienceDaily

Bacteria adapt to a lifestyle in flux — ScienceDaily

Summer picnics and barbecues are only a few weeks away! As excited as you are to indulge this summer, Escherichia coli bacteria are eager to feast on the all-you-can-eat buffet they are about to experience in your gut.

However, something unexpected will occur as E. coli cells end their journey through your digestive tract. Without warning, they will find themselves swimming in your toilet bowl, clinging to the last bits of nutrients attached to their bodies. How do these tiny organisms adapt to survive sudden starvation? Scientists at Washington University in St. Louis wondered.

Close examination of nutrient-deprived E. coli

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New study suggests importance of maintaining healthy lifestyle even after age 80 — ScienceDaily

A new analysis of adults aged 80 years and older shows that a healthier lifestyle is associated with a lower risk of cognitive impairment, and that this link does not depend on whether a person carries a particular form of the gene APOE. Xurui Jin of Duke Kunshan University in Jiangsu, China, and colleagues present these findings in the open-access journal PLOS Medicine.

The APOE gene comes in several different forms, and people with a form known as APOE ε4 have an increased risk of cognitive impairment and Alzheimer’s disease. Previous research has also linked cognitive function to lifestyle

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Tsimane people are unique for their healthy brains that age more slowly — ScienceDaily

A team of international researchers has found that the Tsimane indigenous people of the Bolivian Amazon experience less brain atrophy than their American and European peers. The decrease in their brain volumes with age is 70{1a2a5022a52b7f44d3c003be9afa129e2349806f3225e736ca8b1c4309d27447} slower than in Western populations. Accelerated brain volume loss can be a sign of dementia.

The study was published May 26, 2021 in the Journal of Gerontology, Series A: Biological Sciences and Medical Sciences.

Although people in industrialized nations have access to modern medical care, they are more sedentary and eat a diet high in saturated fats. In contrast, the Tsimane have little

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