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ScienceDaily: Top Health News |
| Invasive species ‘hitchhiking’ on tourist and research ships threaten Antarctica’s unique ecosystems Posted: 10 Jan 2022 03:49 PM PST Marine life hitching a ride on ocean-crossing ships poses a threat to Antarctica's pristine ecosystems, with the potential for invasive species to arrive from almost anywhere across the globe, say the authors of a new study. |
| Posted: 10 Jan 2022 03:48 PM PST Researchers report a new method for analyzing pyroptosis -- the process of cell death that is usually caused by infections and results in excess inflammation in the body -- and show that the process, long thought to be irreversible once initiated, can in fact be halted and controlled. The discovery means that scientists have a new way to study diseases that are related to malfunctioning cell death processes and infections that can be complicated by out-of-control inflammation. |
| New graft strategy may improve outcomes for blood stem cell recipients Posted: 10 Jan 2022 03:48 PM PST Removing one type of T cell from donor blood used for stem cell grafts could greatly reduce a serious complication called graft-versus-host disease in patients with leukemia, according to a new study. |
| Successful transplant of porcine heart into adult human with end-stage heart disease Posted: 10 Jan 2022 03:30 PM PST In a first-of-its-kind surgery, a 57-year-old patient with terminal heart disease received a successful transplant of a genetically-modified pig heart and is still doing well three days later. |
| Personalizing treatment for severe limb injuries Posted: 10 Jan 2022 11:53 AM PST Scientists have developed an innovative technique using small wearable sensors to gather data on how people -- who have suffered from a traumatic hand amputation -- use a prothesis versus a transplanted hand in everyday life. So far, the data shows people with a transplanted hand demonstrate a more balanced use of their hands than those who use a prothesis. |
| The ‘surprisingly simple’ arithmetic of smell Posted: 10 Jan 2022 11:53 AM PST Researchers studying locusts have found that the presence of smell can be determined by simply adding and subtracting the presence of certain neurons. |
| New study links gut fungi to intestinal inflammation in Crohn’s disease patients Posted: 10 Jan 2022 11:52 AM PST Results of a new study represent a step toward improving our understanding of Crohn's disease and the factors that cause its intestinal inflammation. |
| New approach can help identify young children most at risk for obesity Posted: 10 Jan 2022 10:27 AM PST Newly developed risk scores synthesize genetic information into an easy-to-interpret metric that could help clinicians identify young children most at risk of developing obesity. The study used a novel statistical methods to establish scoring criteria using data collected from children from birth to three years of age. |
| Posted: 10 Jan 2022 08:41 AM PST A research team has discovered new neural circuits that regulate spatial learning and memory in the brain's hippocampal formation. The team identified novel functional roles of new circuit connections between the venal CA1 region and dorsal CA3 regions of the hippocampus and demonstrated that genetic inactivation of this projection impairs object-related spatial learning and memory, but does not modulate anxiety-related behaviors. |
| Researchers develop optical biopsy system that detects liver cancer Posted: 10 Jan 2022 08:41 AM PST Researchers have developed an optical biopsy system that can distinguish between cancerous and healthy liver tissue. The technology makes use of diffuse reflectance spectroscopy and lifetime fluorescence measurements to evaluate makers of cellular metabolism that differ between healthy and cancerous cells. The system has higher accuracy than traditional biopsies, possibly making liver cancer diagnosis easier. |
| Will this new superpower molecule revolutionize science? Posted: 10 Jan 2022 07:32 AM PST Researchers report the creation of an artificial molecule with superpowers. It has the potential to revolutionize nanotechnology -- and it also explains one of Nature's intriguing enigmas; why do we have a right hand and a left hand? The researchers describe their supermolecule as a marriage between DNA and peptides. |
| Fewer than 1 in 5 adults with Type 2 diabetes in the U.S. are meeting optimal heart health targets Posted: 10 Jan 2022 07:32 AM PST Fewer than 1 in 5 adults with Type 2 diabetes in the U.S. meet suggested targets to reduce elevated heart disease risk. Improving heart health among people with Type 2 diabetes requires incorporating new evidence-based approaches that address social determinants of health and other barriers to effective treatment. |
| How triclosan, found in many consumer products, is triggered to harm the gut Posted: 10 Jan 2022 07:32 AM PST Increasingly, research links triclosan, an antimicrobial found in thousands of consumer products, with the gut microbiome and gut inflammation. A new study looks at the potential for combating damage to the intestine. The findings suggest new approaches for improving the diagnosis, prevention and treatment of inflammatory bowel disease. |
| A crowning achievement in understanding head development Posted: 10 Jan 2022 07:32 AM PST To understand how cranial neural crest cells (CNCCs) help form many more body parts than the skull and facial skeleton, scientists from the lab of Gage Crump created a series of atlases over time to understand the molecular decisions by which CNCCs commit to forming specific tissues in developing zebrafish. The researchers labeled and tracked CNCCs throughout the lifetime of zebrafish. With the help of a new computational analysis they created, they identified genetic signs that point to the specific tissues CNCCs were destined to form. The researchers also identified many of the potential switches that allow CNCCs to form these very different cell types. |
| Cancer therapy using on-site synthesis of anticancer drugs Posted: 10 Jan 2022 07:32 AM PST Researchers have successfully treated cancer in mice using metal catalysts that assemble anticancer drugs together inside the body. This study is the first report of therapeutic in vivo synthetic chemistry being used to make anticancer substances where they are needed simply by injecting their ingredients through a vein. Because this technique avoids indiscriminate tissue damage, it is expected to have a significant impact on cancer treatment. |
| Unraveling the complexity of vitamin B12 diseases Posted: 10 Jan 2022 07:32 AM PST Researchers unravel the genetic complexity two rare inherited vitamin B12 conditions identifying them as hybrid syndromes that are both a vitamin B12 disorder and a disease of ribosomes, the protein-building machinery of the cell. |
| Breakthrough into the cause of male infertility Posted: 10 Jan 2022 07:32 AM PST Scientists have identified a new genetic mechanism that can cause severe forms of male infertility. This breakthrough in understanding the underlying cause of male infertility offers hope of better treatment options for patients in the future. |
| Improved motor, sensory, and cognitive recovery of hand and arm function after stroke Posted: 07 Jan 2022 09:14 AM PST Stroke survivors have improved recovery of hand and arm function with the help a new rehabilitation protocol thanks to finely tuned electrostimulation of target muscles in the arm. |
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