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ScienceDaily: Top Health News |
| Anti-inflammatory compound shows potential in treating patients with severe COVID-19 Posted: 20 Jul 2022 12:06 PM PDT An anti-inflammatory compound may have the potential to treat systemic inflammation and brain injury in patients with severe COVID-19 and significantly reduce their chances of death, according to a new study. |
| Introducing a protocol for using robotic pets in memory care Posted: 20 Jul 2022 12:06 PM PDT Researchers have developed a protocol for using robotic pets with older adults with dementia. The protocol uses a low-cost robotic pet, establishes ideal session lengths, and identifies common participant responses to the 'pets' to aid in future research. |
| Antibiotics affect male and female gut microbiomes differently Posted: 20 Jul 2022 12:06 PM PDT In a new study, researchers found that antibiotics have sex-specific effects on the gut microbiome makeup of male and female laboratory rats. The findings could have implications for using the drugs in humans to treat or prevent bacterial infection. |
| Racial discrimination affects brain microstructure, study finds Posted: 20 Jul 2022 12:05 PM PDT A new study shows that the experience of racial discrimination affects the microstructure of the brain, as well as increasing the risk for health disorders. |
| With just a tablespoon of blood, researchers aim to transform cancer treatment Posted: 20 Jul 2022 09:10 AM PDT Researchers have developed a new blood test that provides unprecedented insight into a patient's cancer make-up, potentially allowing doctors to better select treatment options that will improve patient outcomes. |
| Human eggs remain healthy for decades by putting 'batteries on standby mode' Posted: 20 Jul 2022 09:10 AM PDT Immature human egg cells skip a fundamental metabolic reaction thought to be essential for generating energy. This helps cells avoid creating reactive oxygen species, harmful molecules that can accumulate, damage DNA and cause cell death. The findings explain how human egg cells remain dormant in ovaries for up to 50 years without losing their reproductive capacity. The findings could lead to new strategies to preserve the ovarian reserves of women undergoing cancer treatment, as well as open new lines of research that explain why one in four cases of infertility are unexplained. |
| Making a memory positive or negative Posted: 20 Jul 2022 09:10 AM PDT Researchers have discovered the molecule in the brain responsible for associating good or bad feelings with a memory. Their discovery paves the way for a better understanding of why some people are more likely to retain negative emotions than positive ones -- as can occur with anxiety, depression or post-traumatic stress disorder (PTSD). |
| Engineers develop new tool that will allow for more personalized cell therapies Posted: 20 Jul 2022 07:25 AM PDT A team has developed a new tool to predict and customize the rate of DNA editing, paving the way for more personalized, efficient genetic and cell therapies for diseases such as diabetes and cancer. |
| Grab a coffee before shopping? You may want to think twice Posted: 20 Jul 2022 07:25 AM PDT Drinking a caffeinated beverage before shopping leads to more items purchased at the store and increased spending. |
| Wearable activity trackers encourage us to walk up to 40 minutes more each day Posted: 20 Jul 2022 07:25 AM PDT New findings have endorsed what millions of people around the world believe: fitness trackers, pedometers and smart watches motivate us to exercise more and lose weight. |
| Melanoma thickness equally hard for algorithms and dermatologists to judge Posted: 20 Jul 2022 07:25 AM PDT Assessing the thickness of melanoma is difficult, whether done by an experienced dermatologist or a well-trained machine-learning algorithm. A study shows that the algorithm and the dermatologists had an equal success rate in interpreting dermoscopic images. |
| Biochemistry: Peptide 'fingerprint' enables earlier diagnosis of Alzheimer's disease Posted: 20 Jul 2022 07:25 AM PDT Neurodegenerative diseases like Alzheimer's disease or Parkinson's disease are caused by folding errors (misfolding) in proteins or peptides, i.e. by changes in their spatial structure. This is the result of minute deviations in the chemical composition of the biomolecules. Researchers have now developed a simple and effective method for detecting such misfolding at an early stage of the disease. Misfolding is revealed by the structure of dried residue from protein and peptide solutions. The method involves analyzing micrographs with neural networks and has a predictive accuracy of over 99 percent. |
| Shift workers 'can't all adjust to a night shift' Posted: 20 Jul 2022 07:25 AM PDT Scientists have challenged the widespread belief that shift workers adjust to the night shift, using data drawn from wearable tech. |
| Higher voice pitch lets female faces appear younger Posted: 20 Jul 2022 07:24 AM PDT Psychologists and biologists have investigated whether voice pitch can influence how female faces are evaluated. Their conclusion: a higher voice does indeed influence how the corresponding face is evaluated. However, this does not apply to all ratings. Faces with a higher voice were rated as younger, but other assumptions that the faces are also rated as more attractive, more feminine or healthier do not apply. |
| Review outlines methods to estimate life expectancy Posted: 20 Jul 2022 07:24 AM PDT Five key methods have been explored by researchers to calculate life expectancy and the life years lost due to disease and illness. |
| A new measure of psychological safety for patients Posted: 20 Jul 2022 07:24 AM PDT A new scale for measuring the psychological safety of patients has been developed. |
| 'iTEARS' could help diagnose diseases by isolating biomarkers in tears Posted: 20 Jul 2022 05:42 AM PDT Going to the doctor might make you want to cry, and according to a new study, doctors could someday put those tears to good use. Researchers report a nanomembrane system that harvests and purifies tiny blobs called exosomes from tears, allowing researchers to quickly analyze them for disease biomarkers. Dubbed iTEARS, the platform could enable more efficient and less invasive molecular diagnoses for many diseases and conditions, without relying solely on symptoms. |
| New findings reveal how neurons build and maintain their capacity to communicate Posted: 20 Jul 2022 05:42 AM PDT Nerve cells regulate and routinely refresh the collection of calcium channels that enable them to send messages across circuit connections. |
| No evidence that depression is caused by low serotonin levels, finds comprehensive review Posted: 20 Jul 2022 05:01 AM PDT After decades of study, there remains no clear evidence that serotonin levels or serotonin activity are responsible for depression, according to a major review of prior research. |
| A healthy lifestyle can offset a high genetic risk for stroke Posted: 20 Jul 2022 05:01 AM PDT People who are genetically at higher risk for stroke can lower that risk by as much as 43% by adopting a healthy cardiovascular lifestyle, according to new research. |
| Study finds why many IVF embryos fail to develop Posted: 19 Jul 2022 10:02 AM PDT Spontaneous errors in the earliest phase of cell division may be the reason why so many human embryos fail to develop normally, according to new research. |
| Posted: 19 Jul 2022 08:34 AM PDT A study of COVID-19 transmission in geriatric acute care wards found healthcare workers in wards with outbreaks of the virus were more likely to transmit new infections than those working in COVID-19 isolation wards. |
| The zinc link: Unraveling the mechanism of methionine-mediated pluripotency regulation Posted: 19 Jul 2022 08:34 AM PDT Differentiation of pluripotent stem cells (PSCs) is regulated through a methionine-mediated mechanism, which has now been pinpointed by researchers. They have revealed that zinc (Zn) plays a crucial role in PSC potentiation. They used these insights to design a protocol to convert PSCs into insulin-producing pancreatic beta cells -- a high-potential diabetes therapy. |
| When did the genetic variations that make us human emerge? Posted: 19 Jul 2022 07:23 AM PDT The study of the genomes of our closest relatives, the Neanderthals and Denisovans, has opened up new research paths that can broaden our understanding of the evolutionary history of Homo sapiens. A new study has made an estimation of the time when some of the genetic variants that characterize our species emerged. It does so by analyzing mutations that are very frequent in modern human populations, but not in these other species of archaic humans. |
| Booster shots offset some of Omicron immune evasion tactics Posted: 19 Jul 2022 07:23 AM PDT While Omicron variants of the pandemic coronavirus ratchet up immune evasion, a new study suggests current boosters intensify protections against serious infection. |
| Nasal sprays will be essential to thwart variants, COVID-19 research confirms Posted: 19 Jul 2022 07:23 AM PDT Researchers have studied the effects of both natural COVID-19 infection and mRNA vaccination on the mucus lining of the airways, the site of viral attack. |
| Benefits of NHS Breast Screening Programme outweigh the small risk of overdiagnosis, study finds Posted: 19 Jul 2022 06:11 AM PDT The NHS Breast Screening Programme in England has shown little, if any, evidence of overdiagnosis, according to a new study. |
| Global supply chains remain resilient in the wake of natural disasters Posted: 19 Jul 2022 06:11 AM PDT While many U.S. policy makers are calling for reshoring and nearshoring to combat trade disruptions caused by COVID-19, new research suggests retrenchment of global supply chains is unlikely to happen in the post-pandemic context. |
| Posted: 18 Jul 2022 11:23 AM PDT New research demonstrates that tissue nanotransfection can serve as a non-viral, topical, gene-editing delivery device. |
| Posted: 18 Jul 2022 09:22 AM PDT A new study provides answers to why Delta is the most lethal variant of SARS-CoV-2. To answer this critical question, researchers performed robust biophysical analyses on the Delta variant and individual mutations that comprise it. |
| Posted: 18 Jul 2022 09:22 AM PDT Researchers now understand the function of an elusive small DNA in bacteria and have developed a tool that can be used to better understand what might 'switch on' bacterial immune defenses. |
| Second mRNA booster significantly effective against Omicron variants, study finds Posted: 18 Jul 2022 06:45 AM PDT A new study has found that a second mRNA booster shot against COVID-19 significantly improved effectiveness against widespread variants Omicron BA.1 and BA.2/BA.2.12.1. |
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