'Noisy' gene expression's key role in development may help improve therapies

To speed up a chemical reaction, a chemist might place the reactants over a Bunsen burner. Adding heat increases the degree of random movements and collisions of particles, accelerating the reaction. | Continue reading

@medicalxpress.com | 3 days ago

'Feel good' brain messenger can be willfully controlled

From the thrill of hearing an ice cream truck approaching to the spikes of pleasure while sipping a fine wine, the neurological messenger known as dopamine has been popularly described as the brain's "feel good" chemical related to reward and pleasure. | Continue reading

@medicalxpress.com | 4 days ago

Making the case for intranasal Covid-19 vaccines

A microbiologist and an immunologist from the University of Alabama at Birmingham have published a Perspective piece in the journal Science outlining the possible benefits of developing COVID-19 vaccines delivered in an intranasal mist rather in the arm as an injection. In their … | Continue reading

@medicalxpress.com | 4 days ago

Study raises prospect of 'fine-tuning' immune response thru individual T-cells

Scientists at Cardiff University have uncovered a way of "fine-tuning" the body's immune response to viral infections at the level of individual T-cells. | Continue reading

@medicalxpress.com | 6 days ago

Existing drug is shown to inhibit SARS-CoV-2 virus

A new University of Chicago study has found that the drug masitinib may be effective in treating COVID-19. | Continue reading

@medicalxpress.com | 6 days ago

Coffee won't upset your heartbeat, and might even calm it

For decades, doctors have warned folks suffering from heart rhythm problems to avoid coffee, out of concern that a caffeine jolt might prompt a herky-jerky heartbeat. | Continue reading

@medicalxpress.com | 7 days ago

AlphaCT1 may repair skin's collagen by altering how scar-forming cells behave

Surgical scars treated with a molecule called alphaCT1 showed a long-term improvement in appearance when compared to control scars, according to multicenter, controlled Phase II clinical trials—a finding that could help surgeons improve patient outcomes. | Continue reading

@medicalxpress.com | 7 days ago

Word gap: When money's tight, parents talk less to kids

Three decades ago, child development researchers found that low-income children heard tens of millions fewer words in their homes than their more affluent peers by the time they reached kindergarten. This "word gap" was and continues to be linked to a socioeconomic disparity in a … | Continue reading

@medicalxpress.com | 8 days ago

High blood sugar levels 'reprogram' stem cells

High levels of glucose in the blood "reprogrames" stem cells, leading to a lasting increase in the risk of developing dangerous atherosclerosis, according to research funded by the British Heart Foundation published today in Circulation. | Continue reading

@medicalxpress.com | 9 days ago

3D 'assembloid' shows how SARS-CoV-2 infects brain cells

Researchers at University of California San Diego School of Medicine and Rady Children's Institute for Genomic Medicine have produced a stem cell model that demonstrates a potential route of entry of SARS-CoV-2, the virus that causes COVID-19, into the human brain. | Continue reading

@medicalxpress.com | 11 days ago

Machine-learning used to detect Alzheimer's during phone conversations

Researchers working at the Department of Public Health, McCann Healthcare Worldwide Japan Inc., has created three algorithms that can be used to detect Alzheimer's in patients as they engage in phone conversations. The group has written a paper outlining the algorithms and their … | Continue reading

@medicalxpress.com | 12 days ago

Testosterone therapy reduces heart attack and stroke

Supplementing testosterone significantly reduces heart attacks and strokes in men with unnaturally low levels of the hormone, according to new research presented at the European Association of Urology congress today. | Continue reading

@medicalxpress.com | 17 days ago

Novel study of high-potency cannabis shows some memory effects

Even before the pandemic made Zoom ubiquitous, Washington State University researchers were using the video conferencing app to research a type of cannabis that is understudied: the kind people actually use. | Continue reading

@medicalxpress.com | 19 days ago

'Fortunate accident' may yield tool against antibiotic-resistant bacteria

In what turned out to be one of the most important accidents of all time, Scottish bacteriologist Alexander Fleming returned to his laboratory after a vacation in 1928 to find a clear zone surrounding a piece of mold that had infiltrated a petri dish full of Staphylococcus aureus … | Continue reading

@medicalxpress.com | 20 days ago

Lab analysis finds near-meat and meat are not nutritionally equivalent

Plant-based meat substitutes taste and chew remarkably similar to real beef, and the 13 items listed on their nutrition labels—vitamins, fats and protein—make them seem essentially equivalent. | Continue reading

@medicalxpress.com | 21 days ago

Engineered cells successfully treat cardiovascular and pulmonary disease

Scientists at UC San Francisco have shown that gene-edited cellular therapeutics can be used to successfully treat cardiovascular and pulmonary diseases, potentially paving the way for developing less expensive cellular therapies to treat diseases for which there are currently fe … | Continue reading

@medicalxpress.com | 21 days ago

Cancer cells eat themselves to survive

To survive life-threatening injuries, cancer cells use a technique in which they eat parts of the membrane surrounding them. This is shown for the first time in research from a team of Danish researchers. | Continue reading

@medicalxpress.com | 21 days ago

Israel data 'preliminary signal' Delta variant can bypass vaccine

Rising coronavirus cases in Israel, where most residents are inoculated with the Pfizer/BioNTech vaccine, offer "a preliminary signal" the vaccine may be less effective in preventing mild illness from the Delta variant, a top expert said Monday. | Continue reading

@medicalxpress.com | 22 days ago

Broken heart syndrome markers could help identify those at risk

Scientists have identified two key molecules which play a role in the development of Takotsubo syndrome, known as broken heart syndrome. | Continue reading

@medicalxpress.com | 26 days ago

Scientists identify 160 new drugs that could be repurposed against Covid-19

Cambridge scientists have identified 200 approved drugs predicted to work against COVID-19—of which only 40 are currently being tested in COVID-19 clinical trials. | Continue reading

@medicalxpress.com | 27 days ago

Newly discovered proteins protect against progression of diabetic kidney disease

Elevated levels of three specific circulating proteins are associated with protection against kidney failure in diabetes, according to research from the Joslin Diabetes Center that will be published 30th June in Science Translational Medicine. | Continue reading

@medicalxpress.com | 27 days ago

New microchip sensor measures stress hormones from drop of blood

A Rutgers-led team of researchers has developed a microchip that can measure stress hormones in real time from a drop of blood. | Continue reading

@medicalxpress.com | 27 days ago

Excessive screen time linked to obesity in US preteens

A new national study finds that children in the United States with greater screen time usage at ages 9-10 are more likely to gain weight one year later. | Continue reading

@medicalxpress.com | 28 days ago

How the perception of internal bodily signals influences the concept of self

In contrast with other animal species on Earth, over the course of their life, humans can develop a fairly clear idea of who they are as individuals and what sets them apart from others. This abstract concept of self is known to be fragmented and fuzzy in individuals with certain … | Continue reading

@medicalxpress.com | 29 days ago

Babies can see things that adults cannot

We can generally recognize an object, even if it is presented for a very brief time. However, if another object appears immediately following the first object, the perception on the first object is impaired such that we do not notice its existence. This perceptual phenomenon, cal … | Continue reading

@medicalxpress.com | 1 month ago

Covid can infect brain cells: study

The coronavirus can infect brain cells, leading to a reaction that could possibly trigger neurological and psychological complaints, Dutch researchers said on Thursday. | Continue reading

@medicalxpress.com | 1 month ago

It's true: Stress does turn hair gray (and it's reversible)

Legend has it that Marie Antoinette's hair turned gray overnight just before her beheading in 1791. | Continue reading

@medicalxpress.com | 1 month ago

3D-printed liver to help surgeons prepare for life-saving operations

Surgeons will perform liver resections with greater accuracy and deliver improved patient outcomes thanks to new research by Nottingham Trent University. | Continue reading

@medicalxpress.com | 1 month ago

Controlling brain states with a ray of light

A study led by researchers from IBEC and IDIBAPS achieved, for the first time, the control of brain state transitions using a molecule responsive to light, named PAI. The results not only pave the way to act on the brain patterns activity and to understand their connection to cog … | Continue reading

@medicalxpress.com | 1 month ago

Going with your gut can result in better decision-making than using data methods

Managers who use their gut instinct together with simple decision-making strategies may make equally good, but faster, decisions as those who use data to reach an outcome, a new study has found. | Continue reading

@medicalxpress.com | 1 month ago

mRNA vaccine yields full protection against malaria in mice

Scientists from the Walter Reed Army Institute of Research and Naval Medical Research Center partnered with researchers at the University of Pennsylvania and Acuitas Therapeutics to develop a novel vaccine based on mRNA technology that protects against malaria in animal models, p … | Continue reading

@medicalxpress.com | 1 month ago

Intermittent fasting 'no magic bullet for weight loss'

New research published this week challenges a popular belief that intermittent fasting diets such as alternate day fasting or the '5:2' are the most effective ways to lose weight. | Continue reading

@medicalxpress.com | 1 month ago

Vitamin D deficiency may increase risk for addiction to opioids and UV light

Vitamin D deficiency strongly exaggerates the craving for and effects of opioids, potentially increasing the risk for dependence and addiction, according to a new study led by researchers at Massachusetts General Hospital (MGH). These findings, published in Science Advances, sugg … | Continue reading

@medicalxpress.com | 1 month ago

Study finds brain areas involved in seeking information about bad possibilities

The term "doomscrolling" describes the act of endlessly scrolling through bad news on social media and reading every worrisome tidbit that pops up, a habit that unfortunately seems to have become common during the COVID-19 pandemic. | Continue reading

@medicalxpress.com | 1 month ago

Low doses of laughing gas could be fast, effective treatment for depression

A new study at the University of Chicago Medicine and Washington University found that a single inhalation session with 25% nitrous oxide gas was nearly as effective as 50% nitrous oxide at rapidly relieving symptoms of treatment-resistant depression, with fewer adverse side effe … | Continue reading

@medicalxpress.com | 1 month ago

Sleep characteristics predict cannabis use, drinking in teens and young adults

A recent study of teens and young adults found that several factors related to sleep timing and sleep duration are associated with an increased risk of cannabis use and binge drinking of alcohol during the following year. | Continue reading

@medicalxpress.com | 1 month ago

A breakthrough in the physics of blood clotting

Heart attacks and strokes—the leading causes of death in human beings—are fundamentally blood clots of the heart and brain. Better understanding how the blood-clotting process works and how to accelerate or slow down clotting, depending on the medical need, could save lives. | Continue reading

@medicalxpress.com | 1 month ago

Researchers identify a molecule critical to functional brain rejuvenation

Recent studies suggest that new brain cells are being formed every day in response to injury, physical exercise, and mental stimulation. Glial cells, and in particular the ones called oligodendrocyte progenitors, are highly responsive to external signals and injuries. They can de … | Continue reading

@medicalxpress.com | 1 month ago

The dream team: Scientists find drug duo that may cure Covid-19 together

COVID-19 continues to claim lives around the world and is infecting millions more. Although several vaccines have recently become available, making significant strides towards preventing COVID-19, what about the treatment of those who already have the infection? Vaccines aren't 1 … | Continue reading

@medicalxpress.com | 1 month ago

Scientists find a new subset of the immune system's dendritic cells

When pathogens invade or tumor cells emerge, the immune system is alerted by danger signals that summon a key battalion of first responders, the unsung heroes of the immune system—a population of starfish-shaped sentinels called dendritic cells. | Continue reading

@medicalxpress.com | 2 months ago

Ban on flavored vaping may have led teens to cigarettes, study suggests

When San Francisco voters overwhelmingly approved a ballot measure banning the sale of flavored tobacco products in 2018, public health advocates celebrated. After all, tobacco use poses a significant threat to public health and health equity, and flavors are particularly attract … | Continue reading

@medicalxpress.com | 2 months ago

Fasting diets could harm future generations

Fasting diets could impact the health of future generations according to new research from the University of East Anglia (UEA). | Continue reading

@medicalxpress.com | 2 months ago

Largest study confirms NSAIDs do not result in worse Covid-19 outcomes

The use of non-steroidal anti-inflammatory drugs (NSAIDs), such as ibuprofen, does not lead to higher rates of death or severe disease in patients who are hospitalised with COVID-19, according to a new observational study of more than 72,000 people in the UK published in The Lanc … | Continue reading

@medicalxpress.com | 2 months ago

Unnecessary MRI exams may be symptoms of a larger healthcare problem

Close to 40 million Magnetic Resonance Imaging procedures are performed annually. These MRIs enable doctors to peer deep inside the body, helping them to diagnose ailments or diseases in a non-invasive way. | Continue reading

@medicalxpress.com | 2 months ago

Mantis shrimp-inspired camera provides second opinion during cancer surgery

Some of the world's greatest innovations, such as Leonardo da Vinci's flying machine, owe their strength and elegance to natural design. Researchers from the University of Illinois Urbana-Champaign have returned their gaze to the natural world to develop a camera inspired by the … | Continue reading

@medicalxpress.com | 2 months ago

Sugary drinks linked to increased colorectal cancer risk in women under 50

Colorectal cancer diagnoses have increased among people under age 50 in recent years and researchers are seeking reasons why. A new study led by Washington University School of Medicine in St. Louis has found a link between drinking sugar-sweetened beverages and an increased risk … | Continue reading

@medicalxpress.com | 2 months ago

Espresso, latte or decaf? Genetic code drives your desire for coffee

Whether you hanker for a hard hit of caffeine or favor the frothiness of a milky cappuccino, your regular coffee order could be telling you more about your cardio health than you think. | Continue reading

@medicalxpress.com | 2 months ago

Neural mechanism of autonomous learning uncovered

Thanks to so-called 'deep learning," a subset of artificial intelligence (AI) algorithms inspired by the brain, machines can match human performance in perception and language recognition and even outperform humans in certain tasks. But do these synthetic biologically inspired sy … | Continue reading

@medicalxpress.com | 2 months ago