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ScienceDaily: Top Health News |
| Allergies to mRNA-based COVID-19 vaccines rare, generally mild, study finds Posted: 17 Sep 2021 01:12 PM PDT Allergic reactions to the new mRNA-based COVID-19 vaccines are rare, typically mild and treatable, and they should not deter people from becoming vaccinated, according to researchers. |
| Time until dementia symptoms appear can be estimated via brain scan Posted: 17 Sep 2021 09:20 AM PDT Researchers have developed an approach to estimating when a person who is at high risk of Alzheimer's dementia but has no cognitive symptoms will start showing signs of cognitive decline. The approach is based on data from a single brain scan, combined with the person's age. |
| Gut bacteria might be an indicator of colon cancer risk Posted: 17 Sep 2021 08:08 AM PDT Researchers are finding a link between the increased presence of certain bacteria in a gut biome and colon cancer. |
| Faster research through automation: New way to count micronuclei in cells Posted: 17 Sep 2021 06:54 AM PDT Researchers have created a novel automated program that accurately and quickly counts micronuclei in stained images. Micronuclei are small nucleus-like structures that are markers of pathologies such as cancer. The development of this automated program will be useful for future research into micronuclei and may aid in the diagnosis and tracking of a range of pathologies. |
| Cutting-edge 3D facial scans could give genetic clues to autism Posted: 17 Sep 2021 06:54 AM PDT Researchers are using high-tech 3D facial scans to give us a better understanding of the genetic causes of autism. |
| When organoids meet coronaviruses Posted: 17 Sep 2021 06:04 AM PDT Researchers established an organoid biobank to search for the genes that are essential for the spreading of a SARS-CoV2 infection. Their study highlights the usefulness of organoids for basic research into coronaviruses, as well as highlighting potential drug targets. |
| Six stages of engagement in ADHD treatment revealed in new, diverse study Posted: 16 Sep 2021 02:34 PM PDT Six stages of engagement in treatment of Attention-Deficit/Hyperactivity Disorder (ADHD) have been reported by researchers based on a diverse study, inclusive of parents of predominantly racial and ethnic minority children with ADHD. |
| Researchers improve optical tissue clearing method to diagnose cancer Posted: 16 Sep 2021 02:34 PM PDT The ability to visualize cancerous tumors and metastatic tissue three dimensionally (3D) can help clinicians diagnose the precise type and stage of cancer, while also informing the best treatment methods. To obtain an even clearer tissue for imaging, a research team based in Japan has tested the effectiveness of specialized hydrogels. Acting as a 3D molecular network, these hydrogels can rapidly remove fats from tissues, which are a factor in tissue opacification, without losing their structure. The material is used in several biomedical devices, including contact lenses. |
| Witnessing abuse of sibling can lead to mental health issues Posted: 16 Sep 2021 02:34 PM PDT Researchers find that youth who witness the abuse of a brother or sister by a parent can be just as traumatized as those witnessing violence by a parent against another parent. Such exposure is associated with mental health issues like depression, anxiety and anger. |
| Can fruit fly research help improve survival of cancer patients? Posted: 16 Sep 2021 10:13 AM PDT Scientists don't really know what kills many cancer patients, but fruit fly research could provide answers. By following flies with tumors up to the point of death, researchers have discovered chemicals produced by tumors that shorten life span apart from the damage done locally to critical organs. This suggests a novel strategy for extending a healthy life span in those with a cancer burden: block the tumor-generated chemicals and the damage they do. |
| Microneedles pierce biofilm for more effective topical delivery of antibiotics to infected wounds Posted: 16 Sep 2021 10:13 AM PDT An engineer has developed a microneedle array that punctures biofilm covering ulcerated cells and tissues. The needles deliver antibiotics to the wounds by absorbing liquid underneath the biofilm and then dissolving. |
| Posted: 16 Sep 2021 09:40 AM PDT Scientists have identified a chemical pathway to an innovative nanomaterial that could lead to large-scale production for applications ranging from spacesuits to military vehicles. |
| Discovery of rapid-response signaling platform suggests new path for blocking allergic inflammation Posted: 16 Sep 2021 08:46 AM PDT A recent study reveals new details about how the body's type 2 innate immune response system works. |
| Posted: 16 Sep 2021 08:46 AM PDT Once a scent is detected, different areas of the brain are activated. A team has recently discovered that structures of the olfactory sense work closely together with the brain's reward and aversion systems. This means that scents are processed not only by the olfactory center but also by regions responsible for emotions and valence determination. |
| Newly discovered two-cell color detection system of lamprey as clue to the evolution of color vision Posted: 16 Sep 2021 08:46 AM PDT Using the lamprey, researchers analyzed the photosensory mechanism of the pineal organ, also called the pineal gland, in non-mammalian vertebrates and discovered a novel mechanism of pineal color discrimination (two-cell system) in which two types of photoreceptor cells, each containing two different opsins, are used to detect color. This discovery may provide insight into the evolution of color detection in other animals, including color vision in humans. |
| Study findings could provide blueprint for regulating lab-developed diagnostic tests Posted: 16 Sep 2021 08:46 AM PDT Diagnostic tests developed in-house in hospital laboratories are not currently regulated by the Food and Drug Administration (FDA), unlike those sold by manufacturers. A new study suggests that temporary deviations from FDA policy in response to the COVID-19 pandemic offer a look at what regulation of these tests by the agency might look like. Findings from this study could inform legislation aimed at regulating lab-developed tests. |
| PFAS exposure can affect women’s ability to breastfeed Posted: 16 Sep 2021 08:45 AM PDT Women with higher levels of PFAS in their system may be 20% more likely to stop breastfeeding early, according to a new study. |
| Biologists identify new targets for cancer vaccines Posted: 16 Sep 2021 08:45 AM PDT Vaccinating against certain cancer proteins can boost overall T cell response and help shrink tumors in mice, according to scientists. The findings could help researchers decide what proteins to include in cancer vaccines. |
| How ribosomes are assembled in human cells Posted: 15 Sep 2021 01:55 PM PDT Three-dimensional images of human small ribosomal subunits offer the most detailed explanation for how the cell's protein-making machines are assembled. |
| Study uncovers new link between long-term arsenic exposure and Type 2 diabetes Posted: 15 Sep 2021 01:14 PM PDT A new study has identified the biological mechanism linking long-term arsenic exposure to diseases such as cancer and Type 2 diabetes. The findings could result in potential new targets for drug development. |
| Likely cause of Alzheimer’s disease identified Posted: 15 Sep 2021 01:13 PM PDT Ground-breaking new research has discovered a likely cause of Alzheimer's disease, in a significant finding that offers potential new prevention and treatment opportunities. |
| Treating infertility with drug-delivering microspheres Posted: 15 Sep 2021 10:51 AM PDT For an embryo to survive, it must attach to the lining of the uterus within days of conception. However, if this lining, called the endometrium, is too thin, the embryo can't latch on. Now, researchers have developed a new system intended to treat infertility in women with thin endometria. Their tiny, micro-scale particles stimulated blood vessel growth, producing promising results in preliminary experiments in cells and mice. |
| New microscopy technique reveals activity of one million neurons across the mouse brain Posted: 15 Sep 2021 10:51 AM PDT Using light beads microscopy, researchers can now capture images of a vast number of cells across different depths in the brain at high speed, with unprecedented clarity. |
| More intensive and personalized strategies may be needed for weight loss Posted: 15 Sep 2021 10:51 AM PDT Modest weight loss can lead to meaningful risk reduction in adults with obesity. Although both behavioral economic incentives and environmental change strategies have shown promise for initial weight loss, to date their efficacy alone or in combination have not been compared. |
| Marching band kids at risk from heat illness Posted: 15 Sep 2021 10:51 AM PDT This time of year, you hear a lot about heat-related illnesses in athletes. Thousands of student-athletes are sidelined by heat illnesses each year, and some don't recover. But while guidelines exist to help coaches and trainers keep their students safe, there's another group on the field that's still at risk: students in marching bands. |
| How to modify RNA: Crucial steps for adding chemical tag to transfer RNA revealed Posted: 15 Sep 2021 08:10 AM PDT The chemical steps involved in an important cellular modification process that adds a chemical tag to some RNAs has been revealed in a new study. Interfering with this process in humans can lead to neuronal diseases, diabetes, and cancers. |
| Do doctors treat pain differently based on their patients’ race? Posted: 15 Sep 2021 08:09 AM PDT Physicians prescribed opioids more often to their white patients who complained of new-onset low back pain than to their Black, Asian and Hispanic patients during the early days of the national opioid crisis, when prescriptions for these powerful painkillers were surging but their dangers were not fully apparent, a new study has found. |
| Posted: 15 Sep 2021 05:58 AM PDT A new study investigates subthreshold depression, a more severe form of depression that includes not only sad mood, but also some of the other symptoms of depression, and reports that psychological interventions may have a modest, but significant effect on the treatment of this type of depression in adolescents. |
| Are there DBPs in that cup of tea? Posted: 15 Sep 2021 05:58 AM PDT Surpassed only by water, tea is the second most consumed beverage worldwide. When boiled tap water is used to brew tea, residual chlorine in the water can react with tea compounds to form disinfection byproducts (DBPs). Now, researchers measured 60 DBPs in three types of tea, unexpectedly finding lower levels in brewed tea than in tap water. However, they also detected many unknown DBPs with uncertain health effects. |
| Researchers find immune cells that guard frequent site of cancer spread Posted: 14 Sep 2021 03:48 PM PDT Lymph nodes are hubs of cancer-fighting T cell immune activity, yet are paradoxically the most common site of early cancer spread. A new study finds a novel population of T cells that remain in lymph nodes to protect against melanoma. These cells have a unique genetic profile differentiating them from circulating T cells and from T cells in other body tissues. |
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