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Unlabelled ScienceDaily: Top Health News

ScienceDaily: Top Health News

ScienceDaily: Top Health News

T cells take the lead in controlling SARS-CoV-2 and reducing COVID-19 disease severity

Posted: 16 Sep 2020 12:48 PM PDT

A multi-layered, virus-specific immune response is important for controlling SARS-CoV-2 during the acute phase of the infection and reducing COVID-19 disease severity, with the bulk of the evidence pointing to a much bigger role for T cells than antibodies. A weak or uncoordinated immune response, on the other hand, predicts a poor disease outcome.

As pandemic progressed, people's perceived risks went up

Posted: 16 Sep 2020 12:48 PM PDT

A recent study documents how personal risk assessment and protective behaviors are linked.

People's life goals relate to their personality type

Posted: 16 Sep 2020 10:56 AM PDT

A new study suggests that for the most part, people formulate goals consistent with their personality traits.

Epidemics and pandemics can exacerbate xenophobia, bigotry

Posted: 16 Sep 2020 10:11 AM PDT

Instincts developed to protect us from illnesses can generalize into avoidance of healthy individuals who simply look, speak or live differently.

The unintended consequence of becoming empathetic

Posted: 16 Sep 2020 10:10 AM PDT

Many people want to become more empathetic. But, these changes in personality may also lead to changes in political ideologies.

A new discovery in regenerative medicine

Posted: 16 Sep 2020 08:35 AM PDT

Researchers have made an unexpected world-first stem cell discovery that may lead to new treatments for placenta complications during pregnancy.

Building bridges: PARP enzymes bring broken DNA together

Posted: 16 Sep 2020 08:35 AM PDT

Researchers capture the structure of PARP enzymes at work, leading to a new understanding of DNA repair that may aid cancer treatments targeting the process.

Next-gen organoids grow and function like real tissues

Posted: 16 Sep 2020 08:35 AM PDT

Bioengineers have created miniature intestines in a dish that match up anatomically and functionally to the real thing better than any other lab-grown tissue models. The biological complexity and longevity of the new organoid technology is an important step towards enabling drug testing, personalized medicine, and perhaps, one day, transplantations.

Brain circuitry underlying dissociative experiences

Posted: 16 Sep 2020 08:35 AM PDT

Scientists identified key brain circuitry that plays a role in the mysterious experience called dissociation, in which people can feel disconnected from their own body and from reality.

Reprogramming brain cells enables flexible decision-making

Posted: 16 Sep 2020 08:35 AM PDT

Humans, like other animals, have the ability to constantly adapt to new situations. Researchers have utilized a mouse model to reveal which neurons in the brain are in command in guiding adaptive behavior. Their new study contributes to our understanding of decision-making processes in healthy and infirm people.

Researchers ask: how sustainable is your toothbrush?

Posted: 16 Sep 2020 08:34 AM PDT

Researchers have examined the sustainability of different models of the most commonly used oral health product - the toothbrush - to ascertain which is best for the planet and associated human health.

Replicating a genome starts with a twist, a pinch, and a bit of a dance

Posted: 16 Sep 2020 08:34 AM PDT

DNA replication begins with a set of proteins -- the Origin of Replication Complex (ORC). Researchers published images of the human ORC in exquisite detail, showing how it changes shapes in dramatic ways as it assembles around DNA.

Potential COVID-19 drug azithromycin may increase risk for cardiac events

Posted: 16 Sep 2020 08:34 AM PDT

Azithromycin -- a commonly-prescribed antibiotic -- also is being investigated as a potential treatment for COVID-19. Researchers have found that azithromycin by itself is not associated with an increase in cardiac events; however, if the drug is taken with certain other drugs that affect the electrical functioning of the heart, then cardiac events increased.

Factors inherent to obesity could increase vulnerability to COVID-19

Posted: 16 Sep 2020 06:42 AM PDT

Conditions related to obesity, including inflammation and leaky gut, leave the lungs of obese patients more susceptible to COVID-19 and may explain why they are more likely to die from the disease, scientists say. They suggest that drugs used to lower inflammation in the lungs could prove beneficial to obese patients with the disease.

Better material for wearable biosensors

Posted: 16 Sep 2020 06:05 AM PDT

Researchers have used electrospinning to make porous silicone that allows sweat to evaporate.

Late childhood peer group status linked to heightened adult circulatory disease risk

Posted: 15 Sep 2020 04:42 PM PDT

Late childhood peer group status may be linked to a heightened risk of developing circulatory system disease --- conditions that affect the normal functioning of the heart and blood vessels -- in later life, indicates new research.

1 in 10 COVID-19 patients return to hospital after being sent home from ER

Posted: 15 Sep 2020 04:42 PM PDT

A new study finds patients with low pulse oximetry readings or fever were more than three times as likely to require hospitalization after their initial discharge as compared to other COVID-19 patients.

COVID-19 virus uses heparan sulfate to get inside cells

Posted: 15 Sep 2020 12:24 PM PDT

Researchers discovered that the SARS-CoV-2 virus can't grab hold of cell receptor ACE2 without a carbohydrate called heparan sulfate, which is also found on lung cell surfaces -- disrupting that interaction with a repurposed drug may help treat COVID-19.

Scientists uncover a novel approach to treating Duchenne muscular dystrophy

Posted: 15 Sep 2020 06:01 AM PDT

Scientists have shown that pharmacological (drug) correction of the content of extracellular vesicles released within dystrophic muscles can restore their ability to regenerate muscle and prevent muscle scarring. The study reveals a promising new therapeutic approach for Duchenne muscular dystrophy (DMD), an incurable muscle-wasting condition, and has far-reaching implications for the field of regenerative medicine.

'COVID-19 is here to stay for the foreseeable future'

Posted: 14 Sep 2020 08:22 AM PDT

In a new paper, experts comment on the future of field-based sciences in a COVID-19 world. The piece outlines the epidemiological characteristics of SARS-CoV-2, the virus causing the COVID-19 pandemic, details its effects on field-based sciences and identifies how working practices can be remodeled to overcome the challenges brought on by the virus.

COVID-19 measures deepening health inequalities in slum communities

Posted: 14 Sep 2020 08:22 AM PDT

Efforts to stem the impact of COVID-19 in low to middle income countries could be creating a health time bomb in their slum communities by deepening existing inequalities, according to researchers.

Certain coping strategies can help offset pandemic's mental health hits

Posted: 14 Sep 2020 08:21 AM PDT

The early days of the COVID-19 pandemic contributed to negative mental health effects for many in the U.S., according to new Penn State research. But the researchers also found that some coping techniques -- like wearing masks and focusing on self-care -- were linked with positive mental health.