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Medical Xpress internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.

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Study sheds new light on what causes long-term disability after a stroke, offers new path toward possible treatment

Published: December 21, 2024 16:50

A recent study by Simon Fraser University researchers has revealed how an overlooked type of indirect brain damage contributes to ongoing disability after a stroke.

A tropical disease in Switzerland: Call for coordinated action on Chagas disease

Published: December 21, 2024 15:10

The Swiss Tropical and Public Health Institute (Swiss TPH), in collaboration with the World Health Organization and other partners, conducted a comprehensive review of Chagas disease in Switzerland. Although typically found in Latin America, Chagas disease…

Without clean water, Pacific Islanders turn to sugary drinks—tackling this could reduce obesity

Published: December 21, 2024 11:10

One in two people in the Pacific Islands is classified as overweight (with a body mass index of 25–29) or obese (a BMI of 30 or above). This is a problem because obesity increases the risk of health conditions such as diabetes, heart disease, strokes and…

Microscopic cell changes linked to cancer's rapid growth in stiff tissues

Published: December 21, 2024 09:49

In 2022 alone, over 20 million people were diagnosed with cancer, and nearly 10 million died from the disease, according to the World Health Organization. While the reaches of cancer are massive, the answer to more effective treatments may be hidden within…

Salt-seeking behavior traced to specific brain neurons

Published: December 21, 2024 09:46

Salt, or more precisely the sodium it contains, is very much a "Goldilocks" nutrient. Low sodium levels cause a drop in blood volume, which can have serious, sometimes deadly, health consequences. Conversely, too much salt can lead to high blood pressure…

Unexpected heart muscle growth found in patients with artificial hearts

Published: December 21, 2024 07:21

A research team co-led by a physician-scientist at the University of Arizona College of Medicine—Tucson's Sarver Heart Center found that a subset of artificial heart patients can regenerate heart muscle, which may open the door to new ways to treat and…

Study compares single-, double-purse-string suture catheter insertion methods in dialysis

Published: December 21, 2024 06:10

Similar postinsertion complication and technical survival rates are seen with single- and double-purse-string suture catheter insertion methods for peritoneal dialysis, according to a study published online Dec. 11 in Renal Failure.

Early detection model for pancreatic necrosis improves patient outcomes

Published: December 20, 2024 14:14

A new prediction model for infected pancreatic necrosis (IPN) in patients with acute pancreatitis (AP) offers a groundbreaking approach to improving patient outcomes. Developed by a team of researchers across eight Chinese hospitals, the model harnesses…

AI model achieves high accuracy in skin cancer detection

Published: December 20, 2024 14:11

Led by Aliyu Tetengi Ibrahim and his team at Ahmadu Bello University, a study published in Data Science and Management on November 2, 2024, introduces an innovative AI model that could revolutionize the way dermatologists detect skin cancer.

Hypersensitive strain sensor enables real-time stroke monitoring

Published: December 20, 2024 14:00

A research team led by Prof. Seung-Kyun Kang from the Department of Materials Science and Engineering at Seoul National University has developed a strain sensor with record-breaking sensitivity in collaboration with researchers from Dankook University,…

First dual chamber leadless pacemaker implanted in a child

Published: December 20, 2024 13:46

UC Davis Director of Pediatric Electrophysiology Dan Cortez has set another world record: He is the first to implant a dual chamber leadless pacemaker in a child. His case report was published this week in the journal Pacing and Clinical Electrophysiology.

AI tool analyzes medical charts for ADHD follow-up care

Published: December 20, 2024 13:20

Stanford Medicine researchers have built an artificial intelligence tool that can read thousands of doctors' notes in electronic medical records and detect trends, providing information that physicians and researchers hope will improve care.

Optogenetics approach reveals how alcohol use disorder impairs cognitive flexibility

Published: December 20, 2024 13:18

Alcohol use disorder (AUD) affects about 400 million people worldwide and is a leading cause of serious illnesses such as cancer, cardiovascular disease, liver disease and stroke. Beyond these physical impacts, AUD profoundly disrupts brain functions…

Experimental drug that summons 'warriors of the immune system' shows early promise against non-Hodgkin lymphoma

Published: December 20, 2024 13:00

An investigational therapy is demonstrating preclinical promise against non-Hodgkin lymphoma by boosting natural killer cells and efficiently annihilating the malignancy without toxicity to the patient, a team of cancer biologists in France has found.

International study reveals COVID-19 pandemic's impact on other causes of death

Published: December 20, 2024 12:50

Researchers have analyzed cause-of-death data for 24 countries before and during the COVID-19 pandemic. The researchers found that life expectancy declined in 2020 for all but four of the 24 included countries, with the US experiencing the largest decline…

Supreme Court to decide on South Carolina's bid to cut funding for Planned Parenthood

Published: December 20, 2024 12:18

In a pivotal move, the United States Supreme Court announced Wednesday that it will review South Carolina's controversial decision to cut off state funding for Planned Parenthood clinics, which provide critical health services to low-income residents.

Check your pantry: Lay's classic potato chips recalled due to milk allergy risk

Published: December 20, 2024 12:14

Frito-Lay has issued a limited recall of select 13-oz bags of Lay's Classic Potato Chips due to the potential presence of undeclared milk, which could pose a serious health risk to individuals with a milk allergy.

Multiple sclerosis brain atlas could pave way for personalized treatments

Published: December 20, 2024 11:53

An international research team, including researchers at Karolinska Institutet, has mapped the genes expressed in the brain cells of people with multiple sclerosis (MS). The atlas, which is presented in the journal Neuron, is hoped to contribute to more…

Study reveals economic burden of tooth decay is highest in UK's deprived groups

Published: December 20, 2024 11:49

The economic impact of dental caries (tooth decay) is disproportionately higher in the most deprived groups, with estimated per-person costs of approximately £18,000 in the UK that could be dramatically reduced with targeted preventative measures, found…

3D bioprinted scaffolds enhance bone healing through improved vascularization

Published: December 20, 2024 11:48

Bone is a highly vascularized tissue, and the link between angiogenesis -blood vessel formation- and bone healing has long been discussed by the scientific community, with several studies describing the impairment of bone healing because of lack of or…

Innovative red blood cell shape test promises better blood storage and transfusions

Published: December 20, 2024 11:15

Scientists have developed a way of assessing the ability of red blood cells to deliver oxygen by measuring their shape. This test could improve specialist transplant and transfusion practice as well as blood banking. The research is published in…

Study reveals brain's role in starting meals through GABA, dopamine

Published: December 20, 2024 09:42

When you are feeling hungry, the brain takes the necessary steps toward consuming a meal. Many of these steps are not well known, but a new study published in the journal Metabolism by researchers at Baylor College of Medicine and the University of Texas…

Researchers discuss the design of 3D-printed microneedles for medical treatments

Published: December 20, 2024 09:08

What does it take to design a new needle for medical use? When the needle needs to be much thinner and sharper than any commercially existing needle and designed to deliver treatments to a previously inaccessible tissue, the answer is years of…

Commercial tea bags release millions of microplastics, entering human intestinal cells

Published: December 20, 2024 08:28

UAB research has characterized in detail how polymer-based commercial tea bags release millions of nanoplastics and microplastics when infused. The study shows for the first time the capacity of these particles to be absorbed by human intestinal cells, and…

Using an AI tool, researchers find poor vascular health accelerates brain aging

Published: December 20, 2024 07:00

Using an AI tool, researchers at Karolinska Institutet have analyzed brain images from 70-year-olds and estimated their brains' biological age. They found that factors detrimental to vascular health, such as inflammation and high glucose levels, are…

The rise in children's melatonin use and what experts want you to know

Published: December 20, 2024 06:34

Packed holiday schedules, no school, disrupted bedtime routines—a parent's worst nightmare. And if you are one of the many turning to melatonin to help their little ones get to sleep, you may want to think again. New research suggests this increasingly…

FDA expands approval of Vtama to include atopic dermatitis

Published: December 20, 2024 06:31

The U.S. Food and Drug Administration has approved Organon's Vtama (tapinarof) 1% cream for an additional indication -- the topical treatment of atopic dermatitis in adult and pediatric patients aged 2 years and older.

Men, residents of higher crime areas see reduction of heart disease deaths due to benefit from community parks

Published: December 20, 2024 04:07

There's a well-established link between green space and health benefits, including lower rates of heart disease risk factors, such as high blood pressure and diabetes.

Autism spectrum disorder ranks among top 10 causes of non-fatal health burden in youth, global study shows

Published: December 19, 2024 18:30

A new global analysis reveals that an estimated 61.8 million people in 2021 were autistic —equivalent to one in every 127 individuals. Conducted as part of the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2021, the research identifies…

Snack bars out, salmon in: US revamps 'healthy' food labels

Published: December 19, 2024 15:56

The United States has redefined what qualifies as "healthy" food for the first time in 30 years, striking items like white bread from the list while welcoming nutrient-rich options such as eggs and salmon, officials said Thursday.

New study highlights ethical challenges in conducting cannabis research in Canada

Published: December 19, 2024 15:54

In the first study of its kind, research led by Canada's Centre for Addiction and Mental Health (CAMH) sheds light on the ethical complexities and systemic barriers facing scientists conducting cannabis research funded by the for-profit cannabis industry.

Adding SBRT to systemic therapy could boost outcomes for some locally advanced hepatocellular carcinoma patients

Published: December 19, 2024 15:47

Recent results from the Phase III NRG-RTOG 1112 clinical study showed that the addition of stereotactic body radiotherapy (SBRT) to systemic therapy with sorafenib significantly improved progression-free survival (PFS) and time-to-progression in patients…

Most women get low grades in healthy eating during and after pregnancy

Published: December 19, 2024 15:47

New research from the University of Massachusetts Amherst finds a pervasive low-quality diet among pregnant and postpartum individuals, reflecting "an urgent need for widespread improvement."

Combining long- and short-read sequencing in single cells reveals new mRNAs in neurodegenerative diseases

Published: December 19, 2024 15:06

Diseases marked by progressive deterioration of the brain—neurodegeneration—have proven challenging to understand and treat. These common conditions affect millions of patients and families around the world, yet efforts to develop new therapies have…

New study reveals how brain stimulation improves cognition, decision-making in mental health disorders

Published: December 19, 2024 15:05

University of Minnesota Medical School researchers have uncovered important insights that could improve how mental health conditions are treated with brain stimulation therapy—a treatment where electrical signals are used to stimulate specific parts of the…

Research suggests coffee may protect against cognitive decline in people with atrial fibrillation

Published: December 19, 2024 15:04

Drinking multiple cups of coffee a day may help prevent cognitive decline in people with atrial fibrillation (AFib or AF), according to new research published in the Journal of the American Heart Association.

Cultural differences account for starkly different responses to COVID-19

Published: December 19, 2024 15:03

Hello Kitty has eyes but no mouth. The unique anatomy of the world-famous Japanese cartoon girl, who appears to be a cat, reflects an important aspect of her nation's cultural norms—she doesn't need a mouth, because in Japan, it is more important to read…

Study examines how ACL surgery contributes to greenhouse gases

Published: December 19, 2024 15:03

A University of Pittsburgh study inspired by the late Freddie H. Fu, MD, one of the world's leading orthopedic surgeons, is tackling a significant contributor to climate change: the health care sector. Engineers and physicians examined how one procedure in…

Study links vaginal microbiome differences to higher cervical cancer rates in Native American women

Published: December 19, 2024 15:02

A recent study led by researchers at the University of Arizona Cancer Center and Northern Arizona University found that Native American women were disproportionately affected by vaginal dysbiosis, a disruption in the balance of bacteria that increases the…

First successful clinical trial of VU319 brings Alzheimer's treatment one step closer

Published: December 19, 2024 14:59

Researchers at the Warren Center for Neuroscience Drug Discovery, a clinical stage biotech within the Vanderbilt University School of Medicine Basic Sciences, have detailed the successful drug discovery of a phase I single ascending dose clinical trial of…

Congo man dies with hemorrhagic fever, indicating mystery outbreak could be more than just malaria

Published: December 19, 2024 14:30

A man in western Congo died Thursday with hemorrhagic fever symptoms, leading officials to suspect that a still-unidentified virus may be involved alongside malaria in a mysterious outbreak that has killed dozens of people, health authorities said.

Marine cyanobacteria in the origin of anti-inflammatory molecules with dermatological, cosmetic applications

Published: December 19, 2024 14:20

Inflammation is a biological process through which our body tries to respond to harmful stimuli, through the direct action of the immune system, enzymes and inflammatory mediators. Inflammation of the skin is usually characterized by redness, swelling,…

Study links alcohol consumption to more severe nut allergy reaction

Published: December 19, 2024 14:10

Findings of a new study into severe allergic reactions offer a sobering warning to people allergic to tree nuts and, more broadly, could lead to quicker diagnoses in emergency care for people with all anaphylactic allergies.

Scientists design workaround that improves response to flu vaccine

Published: December 19, 2024 14:00

Stanford Medicine scientists have designed a way to make our seasonal influenza vaccinations more broadly effective and possibly to protect us from new flu variants with pandemic potential. In a study published in Science, they've shown in cultured human…

Long-term exposure to air pollution tied to more hospital admissions

Published: December 19, 2024 13:50

There is an association between long-term exposure to ambient air pollution and increased all-cause and cause-specific hospital admissions for both physical and behavioral illnesses, according to a study published online Dec. 18 in BMJ Open.

Impact of emergencies on access to emergency cardiac care: Lessons from COVID-19

Published: December 19, 2024 13:48

A new study uncovers how the COVID-19 pandemic reshaped emergency care for acute coronary syndrome, with a sharp decline in hospital visits nationwide. Analyzing over 61,000 cases, the research reveals that older adults, particularly women, were…

Study reveals analgesic and anti-inflammatory properties in Annona squamosa leaves

Published: December 19, 2024 13:48

In Brazil, researchers have identified substances with analgesic, anti-inflammatory, anti-hyperalgesic (against persistent pain) and anti-arthritic activity in the leaves of Annona squamosa, a tree popularly known in the country as fruta-do-conde or pinha.…

Facial and brain markers offer insights into schizophrenia, bipolar disorder

Published: December 19, 2024 13:43

A study published in Psychiatry Research has identified subtle differences in facial shapes that may be linked to the diagnosis of schizophrenia and bipolar disorder. According to the findings, these facial patterns would also be associated with some…

Comprehensive study of clinical trials demonstrates beef can be enjoyed in variety of heart-healthy diets

Published: December 19, 2024 13:39

A recently published, comprehensive systematic review and meta-analysis has added to the growing body of evidence showing that beef can be enjoyed in a heart-healthy diet. Specifically, research consistently demonstrated that eating two (3-ounce) servings…

Life expectancy increased from 2022 to 2023, reaching 78.4 years

Published: December 19, 2024 13:30

Life expectancy in the United States increased in 2023, reaching 78.4 years, while drug overdose mortality decreased from 2022 to 2023, according to two December data briefs published by the National Center for Health Statistics.

Traffic noise and poverty create a dangerous cocktail for heart health

Published: December 19, 2024 13:28

A new study by the German Center for Cardiovascular Research (DZHK) shows that people on low incomes who are also exposed to high levels of traffic noise have a significantly increased risk of serious cardiovascular disease. The findings highlight the need…

2013 to 2022 saw increase in influenza testing at hospital ED visits

Published: December 19, 2024 13:23

The use of influenza testing at hospital emergency department visits increased from 2013 to 2022 in the United States, according to a December data brief published by the National Center for Health Statistics.

Placental genes study explores how assisted reproduction affects children's development

Published: December 19, 2024 13:04

Approximately one in six couples trying to have a child experiences infertility. Each year, over five percent of children in Finland are born with the help of Assisted Reproductive Technology (ART), and to date, over ten million children worldwide have…

New findings expand genetic knowledge of autism underpinnings

Published: December 19, 2024 12:50

Hundreds of novel genetic variants across an ancestrally diverse cohort of 195 families, including 222 people with autism spectrum disorder (ASD), have been identified by researchers at UT Southwestern Medical Center, expanding the catalog of known…

Tailored cancer treatment: Research predicts which patients benefit from immunotherapy

Published: December 19, 2024 12:48

Immunotherapy is a type of cancer treatment that stimulates a patient's immune system to attack tumors. While promising, its effectiveness varies among patients. The new VUB technology helps identify in advance which patients are likely to benefit from…

Personalized stem cell model offers fast, individualized drug testing for amyotrophic lateral sclerosis

Published: December 19, 2024 12:34

Amyotrophic lateral sclerosis (ALS) is a fast-progressing neurodegenerative disease with an average survival time of three years. In ALS, certain types of neurons called motor neurons that are required for muscle contractions die off, leading to…

More is not always better: Hospitals can reduce number of hand hygiene observations without affecting data quality

Published: December 19, 2024 12:00

Hand hygiene (HH) monitoring in hospitals could be reduced significantly, allowing infection preventionists to redirect efforts toward quality improvement and patient safety initiatives, according to a study published in the American Journal of Infection…

The moral dimension to America's flawed health care system

Published: December 19, 2024 12:00

The killing of UnitedHealthcare CEO Brian Thompson has set off soul-searching among many Americans. Part of that reflection is about the public reaction to Thompson's death and the sympathy the suspect received online, with some people critical of the…

Electrical stimulation on wrist can sway hand choice and possibly aid rehabilitation

Published: December 19, 2024 11:59

Hand choice is an unconscious decision frequently made in daily life, whether it's reaching for an object such as a cup or performing any other task. This decision is influenced by target-related information, such as the location, shape, and orientation of…

Carfentanil is 100 times more potent than fentanyl, and it's killing people

Published: December 19, 2024 11:41

Drug overdose deaths in the US have finally begun to abate. Between June 2023 and June 2024, they fell by 14%. However, deaths from a drug used to sedate large animals, called carfentanil, rose by at least 720% between the first half of 2023 and the first…

What are pharmacy benefit managers? A health economist explains how lack of competition drives up drug prices

Published: December 19, 2024 11:40

Wegovy and Ozempic are weight loss drugs that promise to transform the treatment of obesity, heart disease and other chronic conditions that afflict millions of Americans. But while everyone agrees these drugs have the potential to transform lives, no one…

MRI-first strategy for prostate cancer detection proves deemed safe and effective

Published: December 19, 2024 11:22

There are several strategies for the early detection of prostate cancer. The first step is often a blood test for prostate-specific antigen (PSA). If PSA levels exceed a certain threshold, the next step typically involves taking a tissue sample for…

Previously unknown genetic links provide insights into autism's prevalence among males

Published: December 19, 2024 11:00

Research published in The American Journal of Human Genetics has identified a previously unknown genetic link to autism spectrum disorder (ASD). The study found that variants in the DDX53 gene contribute to ASD, providing new insights into the genetic…

Reducing dose of popular blood thinners may limit risk of future bleeding, study finds

Published: December 19, 2024 10:20

For people taking popular blood thinners after having a blood clot, a reduced dose may limit the future risk of bleeding as well as hospital visits, a Michigan Medicine-led study suggests.

Self-guided online treatment can help with atopic eczema

Published: December 19, 2024 10:12

A new study from Karolinska Institutet shows that self-guided cognitive behavioral therapy (CBT) online is as effective as psychologist-led internet-based CBT in reducing the symptoms of atopic eczema. The results, which are published in JAMA Dermatology,…

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