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    Category Biology/Biotechnology

    Flatworm-Inspired Medical Adhesives Stop Blood Loss

    October 14, 2022, Categories  Health/Medical, Biology/Biotechnology

    Design of LIMB. a Schematic illustration of marine organisms that contain interconnected micropores for adhesiveness and transport of liquid reagents. b Schematic of LIMB adhering on blood-exposed substrates. c Schematics showing that LIMB can uptake interfacial fluid, secrete functional liquids, and coagulate blood, thereby providing adhesion, hemostatic, and sealing function. d Confocal image of rhodamine-labeled LIMB (red) containing micropores, partially filled with a FITC-labeled chitosan functional liquid (green). e Sizes of surface and internal pores in LIMB containing 2 M or 5 M PAAm. f–h Stress-stretch curves (f), fracture energy (g), and fractocohesive lengths (h) of LIMBs with varying PAAm content. Values in e, g, h represent the mean ± s.d. (n = 40 for 2M-LIMB Surfa...
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    Clusters of Genes help Mice Live Longer

    October 14, 2022, Categories  Health/Medical, Biology/Biotechnology

    Genetic analyses in UM-HET3 mice used in the Interventions Testing Program highlight sex- and
    age-specific longevity loci. Body weight associates with longevity, as does litter size, through its effect on
    body weight. Mendelian randomization in humans recapitulated these relationships between early growth
    and life span. Gene expression analyses, cross-species integration, and Caenorhabditis elegans life-span
    experiments highlight candidate longevity genes and provide a resource for further investigation.

    Researchers from the National Institute on Aging (NIA)-funded Interventions Testing Program recently reported the discovery of multiple candidate genes that influence longevity...

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    Powerful Enzyme that Tamps Down Inflammation Holds Promise for Protecting the Eyes in Diabetes, Premature Birth

    October 13, 2022, Categories  Health/Medical, Biology/Biotechnology

    Drs. Ruth and William Caldwell

    An enzyme under study to treat certain cancers is also showing promise in reducing the significant vision damage that can result from diabetes and premature birth, scientists report.

    Inflammation is considered a hallmark of cancer. It’s pervasive as well in both of these potentially blinding eye conditions, in which inadequate oxygen to the eyes prompts growth of new blood vessels to better deliver oxygen, but which instead often obstruct the vision pathway and become leaky, which causes swelling, further hindering vision.

    Scientists at the Medical College of Georgia report in newly published studies in the journals Cell Death and Disease and Cells, increasing evidence that making more of the enzyme arginase 1, or A1, available helps alleviate these...

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    Healthy Aging Requires an Understanding of Personality Types

    October 12, 2022, Categories  Health/Medical, Biology/Biotechnology

     Relationship between lifestyle factors and different cognitive categories. The figure is color coded based on similarity of covariate. In dark blue are the factors related to financial strain, in shades of orange are the factors that require greater levels of concentration, in shades of green are the factors that relate to physical exercise, in purple and light blue is age and level of education, and in shades of yellow is smoking and drinking.

    New research shows that older adults may be better supported as they age when their personalities are considered — for example, are they more like orchids or dandelions?

    Researchers from Simon Fraser University’s Circle Innovation examined the potential effects of lifestyle activities on the cognitive health of more than 3,500 adults aged 60...

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