科学与环境
An anti-aging drug may help protect the brain before Alzheimer's symptoms begin
来源: All Top News -- ScienceDaily · 发布于
A surprising new study suggests that an anti-aging drug could help protect people genetically predisposed to Alzheimer's disease. Researchers found that just four weeks of low-dose rapamycin improved brain blood flow in healthy middle-aged adults carrying the high-risk APOE4 gene
A surprising new study suggests that an anti-aging drug could help protect people genetically predisposed to Alzheimer's disease. Researchers found that just four weeks of low-dose rapamycin improved brain blood flow in healthy middle-aged adults carrying the high-risk APOE4 gene variant, with women showing the strongest benefits. Because declining blood flow can occur years before Alzheimer's symptoms appear, the discovery raises hopes for preventing or delaying the disease before memory loss begins.
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Scientists reverse liver cell aging and cut Alzheimer’s-linked protein in half
A surprising discovery suggests that rejuvenating the liver could help protect against Alzheimer’s disease and heart disease. USC researchers found that an experimental drug restored aging liver cells in rats, cutting levels of an Alzheimer’s-linked protein in half and bringing b
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Investigation links Australian deforestation to beef farming and major bank loans
ACF's latest report, "Bulldozers and Broken Promises," an investigation into deforestation, has ruffled a few feathers. But someone has to do it. Why? Because deforestation is a huge problem in Australia.
Phys.org - latest science and technology news stories ·
How mitochondria keep protein production moving
Researchers at Karolinska Institutet have discovered how a protein called TACO1 helps mitochondria produce proteins when the process encounters difficult sequences. The study, published in Nature Communications, provides new insights into a mechanism that is disrupted in some mit
Phys.org - latest science and technology news stories ·
Twisted atomic layers slide spontaneously at room temperature in simulations
Researchers revealed an ultralow-barrier collective sliding mechanism mediated by domain walls, as well as defect-induced pinning of the sliding motion. They found that twisted bilayer MoS₂ moiré superlattices can undergo spontaneous long-range interlayer sliding at room temperat
Phys.org - latest science and technology news stories ·
New placenta-on-a-chip model allows engineers to study effects of environmental toxins
Exposure to toxic metals like cadmium has been associated with adverse pregnancy outcomes such as miscarriage, preterm birth and low birth weight. Because these effects are difficult and ethically challenging to study directly in pregnant women, how such exposures affect pregnanc
Phys.org - latest science and technology news stories ·