ScienceDaily: Top Health News


A promising new pathway to treating type 2 diabetes

Posted: 29 Jun 2021 04:17 PM PDT

Researchers believe the liver may hold the key to new, preventative Type 2 diabetes treatments.

This 5,000-year-old man had the earliest known strain of plague

Posted: 29 Jun 2021 01:13 PM PDT

The oldest strain of Yersinia pestis -- the bacteria behind the plague that caused the Black Death, which may have killed as much as half of Europe's population in the 1300s -- has been found in the remains of a 5,000-year-old hunter-gatherer. A genetic analysis reveals that this ancient strain was likely less contagious and not as deadly as its medieval version.

A promising two-punch therapy for Langerhans cell histiocytosis

Posted: 29 Jun 2021 01:13 PM PDT

A novel combination therapy resulted in a significant decrease of disease burden in an animal model of LCH.

Increased use of household fireworks creates a public health hazard

Posted: 29 Jun 2021 11:43 AM PDT

Fireworks are synonymous in the United States with the celebration of Independence Day and other special events, but the colorful displays have caused a growing risk to public safety in recent years, according to a new study.

Study reveals mechanisms of increased infectivity, antibody resistance of SARS-CoV-2 variants

Posted: 29 Jun 2021 11:43 AM PDT

Combining structural biology and computation, researchers have identified how multiple mutations on the SARS-CoV-2 spike protein independently create variants that are more transmissible and potentially resistant to antibodies.

Reported cases of myocarditis in younger men following COVID-19 vaccination are rare

Posted: 29 Jun 2021 11:43 AM PDT

Researchers are taking a close look at rare cases of inflammation of the heart muscle, or myocarditis, in young men who developed symptoms shortly after receiving the second dose of the Moderna or Pfizer messenger RNA (mRNA) COVID-19 vaccines. Several recent studies suggest that health care professionals should watch for hypersensitivity myocarditis as a rare adverse reaction to being vaccinated for COVID-19. However, researchers stress that this awareness should not diminish overall confidence in vaccination during the current pandemic.

How a COVID-19 infection changes blood cells in the long run

Posted: 29 Jun 2021 11:43 AM PDT

New research suggests that a coronavirus infection alters the biomechanical properties of red and white blood cells, in some cases for months -- a possible explanation for long COVID.

Computer training program for seniors can reduce hazardous driving

Posted: 29 Jun 2021 10:43 AM PDT

A recent proof-of-concept study finds that a low-cost training program can reduce hazardous driving in older adults. Researchers hope the finding will lead to the training becoming more widely available.

A new class of functional elements in the human genome?

Posted: 29 Jun 2021 10:43 AM PDT

When regions of the human genome where the DNA can fold into unusual three-dimensional structures called G-quadruplexes (G4s) are located in regulatory sequences or other functional, but non-protein coding, regions of the genome, they are maintained by selection, are more common, and their unusual structures are more stable. Together, these lines of evidence suggest that G4 elements should be added to the list of functional elements of the genome.

Drug relieves persistent daydreaming, fatigue, and brain sluggishness in adults with ADHD

Posted: 29 Jun 2021 10:43 AM PDT

Tests of a drug known to stimulate brain activity have shown early success in reducing symptoms of sluggish cognitive tempo in 38 men and women with attention deficit hyperactivity disorder (ADHD.)

Early experiences have larger effect on mood than more recent ones, study suggests

Posted: 29 Jun 2021 10:43 AM PDT

New insight on how our experiences during a task or interaction shape our current mood has just been published.

'Unlocking' the potential of viruses to fight cancer

Posted: 29 Jun 2021 10:43 AM PDT

Researchers have elucidated the mechanism through which the H-1PV cancer-destroying virus can cause cell lysis and death. At the heart of this process lie laminins, and specifically laminin gamma 1, a family of proteins on the surface of a cancer cell to which this virus binds. The findings carry significant implications for the advancement of virus-based anticancer strategies and for the prediction of a patient's response to this innovative therapeutic approach.

Researchers identify muscle proteins whose quantity is reduced in type 2 diabetes

Posted: 29 Jun 2021 10:43 AM PDT

A study shows that the concentration of mitochondrial muscle proteins already decreases markedly in prediabetes. The new finding confirms the significance of muscle mitochondria in the development of type 2 diabetes.

Playing wind instruments generates less aerosol than vocalization, COVID-19 study finds

Posted: 29 Jun 2021 09:08 AM PDT

Aerosol generated by playing woodwind and brass instruments is less than that produced when vocalising (speaking and singing) and is no different than a person breathing, new research has found. The findings could be crucial to developing a roadmap for lifting COVID-19 restrictions in the performing arts, which have been significantly restricted since the start of the pandemic.

Just enough information will motivate young children to learn, drive curiosity

Posted: 29 Jun 2021 09:08 AM PDT

Preschool children are sensitive to the gap between how much they know and how much there is to learn, according to a new study.

A new kind of visual illusion uncovers how our brains connect the dots

Posted: 29 Jun 2021 09:08 AM PDT

A new class of illusion, developed by a visual artist and a psychology researcher, underscores the highly constructive nature of visual perception.

Antibodies help identify women protected from placental malaria

Posted: 29 Jun 2021 09:08 AM PDT

Six antibody characteristics could help scientists identify which pregnant women are at risk of placental malaria infections.

Success in reversing dementia in mice sets the stage for human clinical trials

Posted: 29 Jun 2021 09:07 AM PDT

Researchers have identified a new treatment candidate that appears to not only halt neurodegenerative symptoms in mouse models of dementia and Alzheimer's disease, but also reverse the effects of the disorders.

COVID-19: Reduced sense of taste and smell lingers

Posted: 29 Jun 2021 09:07 AM PDT

Patients with mild COVID-19 infections experience a significantly increased longer lasting reduced sense of taste and smell. This is also the case for long-term shortness of breath, although relatively few people are affected. And women and the elderly are particularly affected, according to new research.

Managing attention deficit disorder by training the brain

Posted: 29 Jun 2021 09:07 AM PDT

Scientists explored a technique called 'neurofeedback,' which enables ADHD patients to train their attention, based on instant feedback from the level of their brain activity. The team of neuroscientists found that not only did the training have a positive effect on patients' concentration abilities, but also that the attention improvement was closely linked to an enhanced response from the brain -- the P3 wave -- which is known to reflect integration of information in the brain.

How environmental factors could provide for a young brain

Posted: 29 Jun 2021 09:07 AM PDT

A stimulating environment keeps the 'hippocampus' -- which is the brain's memory control center -- young, so to speak. Causes of this are molecular mechanisms that affect gene regulation. These current findings from studies in mice provide clues as to why an active, varied life can help preserve mental fitness in old age.

'The focea': A region of improved vision in mice

Posted: 29 Jun 2021 09:07 AM PDT

Researchers have discovered that the visual cortex of mice contains a region of enhanced visual sensitivity dubbed the 'focea', making the mouse a better model of human vision than previously expected.

Human molecule blocking toxic forms of Parkinson's-related protein identified

Posted: 29 Jun 2021 09:07 AM PDT

Researchers have identified a human peptide found in the brain that blocks the alpha-synuclein aggregates involved in Parkinson's disease and prevents their neurotoxicity.

Targeted delivery of therapeutic RNAs only to cancer, no harm caused to healthy cells

Posted: 29 Jun 2021 09:04 AM PDT

The groundbreaking technology may revolutionize the treatment of cancer and a wide range of diseases and medical conditions.

Researchers discover unique 'spider web' mechanism that traps, kills viruses

Posted: 29 Jun 2021 07:12 AM PDT

Immunologists have discovered a previously unknown mechanism which acts like a spider web, trapping and killing pathogens such as influenza or SARS-CoV-2, the virus responsible for COVID-19.

COVID-19's socio-economic fallout threatens global coffee industry, study finds

Posted: 29 Jun 2021 07:12 AM PDT

COVID-19's socio-economic effects will likely cause another severe production crisis in the coffee industry, according to a new study.

Evidence against physically punishing kids is clear, researchers say

Posted: 29 Jun 2021 07:12 AM PDT

A conclusive narrative review has found physical punishment of children is not effective in preventing child behavior problems or promoting positive outcomes and instead predicts increases in behavior problems and other poor outcomes over time.

Microfilter device capable of detecting trace amounts of cancer cells in one mL of blood

Posted: 29 Jun 2021 07:12 AM PDT

Researchers have developed a microfilter device that can easily separate and capture trace amounts of cancer cells in blood. The palm-sized device is expected to contribute to the development of new cancer diagnostic technologies based on cancer cells in the blood, such as early detection by blood test, postoperative management, and recurrence monitoring.

Mongoose in the city: How landscape can impact disease transmission in Botswana

Posted: 29 Jun 2021 07:12 AM PDT

Under a concrete drainage culvert at the edge of a town in Botswana, a troop of banded mongoose is getting ready to leave its den. Moving from shade into light, the cat-sized animals scan the area for signs of danger and for opportunities to find something to eat in an increasingly crowded neighborhood.

Blood-based biomarkers may predict HIV remission after stopping antiretroviral therapy

Posted: 29 Jun 2021 07:12 AM PDT

Newly identified sugar and metabolic signatures may help predict duration and probability of HIV remission after antiretroviral therapy interruption during cure-directed clinical trials.

Cell-based immunotherapy shows promise against melanoma

Posted: 29 Jun 2021 07:11 AM PDT

Researchers have shown in preclinical studies conducted in mice and human cells that a type of immunotherapy based on natural killer cells could be effective against solid tumors, starting with melanoma, a type of skin cancer that can be deadly if not caught early.

Call to increase genetic diversity in immunogenomics

Posted: 29 Jun 2021 07:11 AM PDT

Historically, most large-scale immunogenomic studies - those exploring the association between genes and disease - were conducted with a bias toward individuals of European ancestry. Researchers are now calling to actively diversify the genetic resources immunogenomics researchers use in their work to advance genomic medicine more equitably.

In a dish, a mouse, crafted from stem cells, begins to form

Posted: 29 Jun 2021 07:08 AM PDT

New advances in stem cell research will help scientists battle diseases, develop drugs and, eventually, grow organs for transplant.

Pulling wisdom teeth can improve long-term taste function, research finds

Posted: 28 Jun 2021 02:05 PM PDT

Patients who had their wisdom teeth extracted had improved tasting abilities decades after having the surgery, according to a new study.

Underground fiber optic sensors record sounds of COVID lockdown, reopening

Posted: 28 Jun 2021 09:30 AM PDT

In March 2020, daily life in the United States changed in an instant as the country locked down to deal with the initial wave of the COVID-19 pandemic. New research reveals how residents in one community returned to their routines as the restrictions lifted.

Researchers engineer cells to destroy malignant tumor cells but leave the rest alone

Posted: 28 Jun 2021 08:41 AM PDT

Researchers have developed a promising new cancer immunotherapy that uses cancer-killing cells genetically engineered outside the body to find and destroy malignant tumors.