Friday, January 31, 2025

Delays in cancer diagnosis for pregnant women

Cancer symptoms can sometimes be misdiagnosed as normal pregnancy-related changes for women who are expecting, in some cases leading to a delay in treatment, according to a new study.

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Artificial intelligence improves personalized cancer treatment

Personalized medicine aims to tailor treatments to individual patients. Until now, this has been done using a small number of parameters to predict the course of a disease. However, these few parameters are often not enough to understand the complexity of diseases such as cancer. A team of researchers has developed a new approach to this problem using artificial intelligence (AI).

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Thursday, January 30, 2025

Wildfire smoke can carry toxins hundreds of kilometers, depositing grime on urban structures, surfaces

Researchers have shown that plumes of wildfire smoke can carry contaminants hundreds of kilometers, leaving a toxic and lingering footprint which has the potential to be re-released into the environment.

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Wednesday, January 29, 2025

New avenues in quantum research: Supramolecular qubit candidates detected

Researchers were able to demonstrate for the first time that non-covalent bonds between spin centers are also capable of producing quartet states through spin mixing. Supramolecular chemistry is thus a valuable tool for the research, development and scaling of new materials for quantum technologies.

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New structures of a critical amyloid protein illuminated

The tiny protein known as transthyretin can cause big problems in the body when it misfolds after secretion. While healthy transthyretin moves hormones through blood and spinal fluid, misfolded versions of the protein form dangerous clumps in the heart and along nerves -- triggering a progressive and fatal disease known as transthyretin amyloidosis (ATTR). Up to a quarter of all men over the age of 80 have some degree of ATTR, which can cause shortness of breath, dizziness and tingling or loss of sensation in the extremities. Now, scientists have uncovered new structures of transthyretin.

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Calorie labels on menus could make eating disorders worse

Calorie labels on restaurant menus are negatively impacting people with eating disorders, according to a new study. The review found that individuals who have been diagnosed with an eating disorder changed their behaviors if presented with a menu featuring calorie labels.

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Tuesday, January 28, 2025

Explaining persistent hydrogen in Mars' atmosphere

The fact that the cold, dry Mars of today had flowing rivers and lakes several billion years ago has puzzled scientists for decades. Now, researchers think they have a good explanation for a warmer, wetter ancient Mars. Building on prior theories describing the Mars of yore as a hot again, cold again place, a team has determined the chemical mechanisms by which ancient Mars was able to sustain enough warmth in its early days to host water, and possibly life.

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First mouse with two male parents to reach adulthood

A team of stem cell scientists have successfully used embryonic stem cell engineering to create a bi-paternal mouse -- a mouse with two male parents -- that lived until adulthood. Their results describe how targeting a particular set of genes involved in reproduction allowed the researchers to overcome previously insurmountable challenges in unisexual reproduction in mammals.

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Monday, January 27, 2025

Researchers uncover new approach to predict pain sensitivity

Researchers have uncovered how specific patterns in brain activity can predict an individual's sensitivity to pain, expanding opportunities for improved pain management strategies.

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New drug shows promise in restoring vision for people with nerve damage

Researchers have found a promising drug candidate that could help restore vision in individuals with multiple sclerosis (MS) and other neurological conditions that damage neurons.

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New drug shows promise in restoring vision for people with nerve damage

Researchers have found a promising drug candidate that could help restore vision in individuals with multiple sclerosis (MS) and other neurological conditions that damage neurons.

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How Camellias evolved with the formation of the Japanese archipelago?

Japan Sea element plants are generally thought to have evolved from closely related species on the Pacific side. Camellia japonica and Camellia rusticana were also believed to follow this pattern. However, a new study revealed that their origins trace back to the Miocene, when the Japanese archipelago separated from the continent.

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Saturday, January 25, 2025

Combination of dual-targeted therapies and chemotherapy shows high response rates in BRAF-mutated metastatic colorectal cancer

Patients with metastatic colorectal cancer (mCRC) harboring BRAF V600E mutations benefited from first-line treatment with the targeted therapies encorafenib and cetuximab plus a mFOLFOX6 chemotherapy regimen, according to results from the PhaseIII BREAKWATER trial.

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Combination of dual-targeted therapies and chemotherapy shows high response rates in BRAF-mutated metastatic colorectal cancer

Patients with metastatic colorectal cancer (mCRC) harboring BRAF V600E mutations benefited from first-line treatment with the targeted therapies encorafenib and cetuximab plus a mFOLFOX6 chemotherapy regimen, according to results from the PhaseIII BREAKWATER trial.

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Friday, January 24, 2025

Targeting potassium channel shows promise for treating brain tumors

Researchers find blocking the KCNB2 gene can slow tumor growth, paving the way for next-gen treatments for childhood brain cancer.

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Thursday, January 23, 2025

Researchers create new guidelines to diagnose common memory disorder frequently mistaken for Alzheimer's Disease

New guidelines will help doctors identify patients with a common memory-loss syndrome that is often misdiagnosed as Alzheimer's disease in older adults. The diagnostic criteria for limbic-predominant age-related TDP-43 encephalopathy (LATE) have just been published. These guidelines are an important first step in advancing clinical trials and treatments for this lesser-known, but common type of memory loss disorder.

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Wednesday, January 22, 2025

Wild baboons not capable of visual self-awareness when viewing their own reflection

Wild baboons failed to demonstrate visual self-recognition in a test carried out by anthropologists.

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Here's what's causing the Great Salt Lake to shrink

The Great Salt Lake, the largest saltwater lake in the Western Hemisphere, reached historic low levels in 2022, raising economic, ecological and public health concerns for Utah. New research is believed to be the first peer-reviewed study that quantifies the contributing factors to the record low water volume levels, which the researchers say is important for anticipating and managing future lake changes.

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Fighting experience plays key role in brain chemical's control of male aggression

Like humans, mice will compete over territory and mates, and show increased confidence in their fighting skills the more they win. At first, a brain chemical called dopamine is essential for young males to master this behavior. But as they gain experience, the chemical grows less important in promoting aggression, a new study shows.

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Fighting experience plays key role in brain chemical's control of male aggression

Like humans, mice will compete over territory and mates, and show increased confidence in their fighting skills the more they win. At first, a brain chemical called dopamine is essential for young males to master this behavior. But as they gain experience, the chemical grows less important in promoting aggression, a new study shows.

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Tuesday, January 21, 2025

Treatment for children with obesity has lasting effect

When children with obesity undergo weight-loss treatment, the effects have repercussions later in life and the risk of serious health problems and premature death is lower as they reach young adulthood. However, this is not the case for depression and anxiety, a study reports.

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Treatment for children with obesity has lasting effect

When children with obesity undergo weight-loss treatment, the effects have repercussions later in life and the risk of serious health problems and premature death is lower as they reach young adulthood. However, this is not the case for depression and anxiety, a study reports.

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Monday, January 20, 2025

Fatty muscles raise the risk of serious heart disease regardless of overall body weight

People with pockets of fat hidden inside their muscles are at a higher risk of dying or being hospitalized from a heart attack or heart failure, regardless of their body mass index, according to new research. This 'intermuscular' fat is highly prized in beef steaks for cooking. However, little is known about this type of body fat in humans, and its impact on health. This is the first study to comprehensively investigate the effects of fatty muscles on heart disease. The new finding adds evidence that existing measures, such as body mass index or waist circumference, are not adequate to evaluate the risk of heart disease accurately for all people.

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Ancient viral DNA shapes early embryo development

Over half of our genomes consists of thousands of remnants of ancient viral DNA, known as transposable elements, which are widespread across the tree of life. Once dismissed as the 'dark side' of the genome, researchers have now revealed their crucial role in early embryo development.

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New study paves way for immunotherapies tailored for childhood cancers

Researchers have determined how children's immune systems react to different kinds of cancer depending on their age. The study reveals significant differences between the immune response of children and adults, and has the potential to lead to new tailored treatments for children with cancer.

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New study paves way for immunotherapies tailored for childhood cancers

Researchers have determined how children's immune systems react to different kinds of cancer depending on their age. The study reveals significant differences between the immune response of children and adults, and has the potential to lead to new tailored treatments for children with cancer.

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Sunday, January 19, 2025

Ecologists uncover significant ecological impact of hybrid grouper release through religious practices

Ecologists have identified significant ecological risks associated with the release of hybrid groupers into Hong Kong's coastal waters, a practice often linked to religious 'mercy release' rituals. Their study highlights how the Tiger Grouper-Giant Grouper hybrid (TGGG), also known as the Sabah grouper, disrupts local marine ecosystems by exploiting unique ecological niches and potentially becoming a dominant predator. This research, the first to use advanced DNA metabarcoding to analyze the diet of this hybrid species, underscores the urgent need for public education and conservation measures to mitigate unintended ecological impacts.

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Saturday, January 18, 2025

Excess weight gain in first trimester associated with fetal fat accumulation

Fetuses of pregnant people who gained excess weight in the first trimester of pregnancy show signs of excess fat distribution in the upper arm and in the abdomen, according to a new study. These findings may inform efforts to prevent excessive weight gain early in life, a risk factor for adult obesity and related conditions, such as heart disease, high blood pressure and diabetes.

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Excess weight gain in first trimester associated with fetal fat accumulation

Fetuses of pregnant people who gained excess weight in the first trimester of pregnancy show signs of excess fat distribution in the upper arm and in the abdomen, according to a new study. These findings may inform efforts to prevent excessive weight gain early in life, a risk factor for adult obesity and related conditions, such as heart disease, high blood pressure and diabetes.

from Top Health News -- ScienceDaily https://ift.tt/2tGK6qU

Friday, January 17, 2025

A common antihistamine shows promise in treating liver complications of a rare disease complication

Researchers find that allergy medicine could help patients with a rare genetic disease avoid liver transplants.

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A common antihistamine shows promise in treating liver complications of a rare disease complication

Researchers find that allergy medicine could help patients with a rare genetic disease avoid liver transplants.

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Astronomers capture unprecedented view of supermassive black hole in action

Astronomers have now produced the highest resolution direct images ever taken of a supermassive black hole in the infrared, using the Large Binocular Telescope Interferometer.

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Thursday, January 16, 2025

Conquest of Asia and Europe by snow leopards during the last Ice Ages uncovered

Scientists have identified fossils of snow leopards. The discovery has allowed them to trace the evolutionary history of the species during the Quaternary period and to propose how it dispersed from the Tibetan plateau to the Iberian Peninsula, far from the high and icy Himalayan mountains.

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Child undernutrition may be contributing to global measles outbreaks, researchers find

Amid a global surge in measles cases, new research suggests that undernutrition may be exacerbating outbreaks in areas suffering from food insecurity. A study involving over 600 fully vaccinated children in South Africa found those who were undernourished had substantially lower levels of antibodies against measles.

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Do parents really have a favorite child? Here's what new research says

A new study found that younger siblings generally receive more favorable treatment from parents. Meanwhile, older siblings are often granted more autonomy, and parents are less controlling towards them as they grow up.

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Wednesday, January 15, 2025

Ancient genomes reveal an Iron Age society centred on women

A groundbreaking study finds evidence that land was inherited through the female line in Iron Age Britain, with husbands moving to live with their wife's community. This is believed to be the first time such a system has been documented in European prehistory.

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Tuesday, January 14, 2025

Global study pinpoints genes for depression across ethnicities

New genetic risk factors for depression have been identified across all major global populations for the first time, allowing scientists to predict risk of depression regardless of ethnicity. The world's largest and most diverse genetic study ever into major depression has revealed nearly 300 previously unknown genetic links to the condition, experts say.

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Self-stimulated ejection of freezing droplets, unlocking cost-effective applications in de-icing

Water droplets under freezing conditions do not spontaneously detach from surfaces as they do at room temperature due to stronger droplet-surface interaction and lack of an energy transformation pathway. Since accumulated droplets or ice have to be removed manually or with mechanical equipment, which is costly and inefficient, preventing droplet accretion on surfaces is both scientifically intriguing and practically important. Researchers have now invented a ground-breaking self-powered mechanism of freezing droplet ejection that allows droplets to shoot themselves away, paving the way for cost-efficient and promising technological applications.

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Global study pinpoints genes for depression across ethnicities

New genetic risk factors for depression have been identified across all major global populations for the first time, allowing scientists to predict risk of depression regardless of ethnicity. The world's largest and most diverse genetic study ever into major depression has revealed nearly 300 previously unknown genetic links to the condition, experts say.

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Monday, January 13, 2025

DNA nanorobots can alter artificial cells

Scientists have succeeded in controlling the structure and function of biological membranes with the help of 'DNA origami'. The system they developed may facilitate the transportation of large therapeutic loads into cells. This opens up a new way for the targeted administration of medication and other therapeutic interventions. Thus, a very valuable instrument can be added to the toolbox of synthetic biology.

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X-ray flashes from a nearby supermassive black hole accelerate mysteriously

Astronomers observed flashes of X-rays coming from a supermassive black hole at a steadily increasing clip. The source could be the core of a dead star that's teetering at the black hole's edge.

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Saturday, January 11, 2025

Researchers achieve real-time detection of low gas concentrations

Researchers have developed a method for quickly detecting and identifying very low concentrations of gases, which, could form the basis for highly sensitive real-time sensors for applications such as environmental monitoring, breath analysis and chemical process control.

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Friday, January 10, 2025

Medicare rules may reduce prescription steering

Researchers have found that pharmacy benefit managers (PBMs) -- organizations that negotiate access to medicines for most patients in the United States -- steer patients to use their own pharmacies. However, these pharmacies appear less used in Medicare than in other market segments. These PBMs are part of integrated health care conglomerates that own insurance companies and pharmacies, which may create conflicts of interest.

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May the force not be with you: Cell migration doesn't only rely on generating force

Researchers find cell migration doesn't only rely on generating force. A professor of mechanical engineering and materials science found that groups of cells moved faster with lower force when adhered to soft surfaces with aligned collagen fibers.

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Thursday, January 9, 2025

Researchers shed light on how to predict which skin cancer patients are most likely to respond to immunotherapy

An international team of UK and US scientists discovered that the activity of macrophages -- a type of white blood cell that engulf pathogens and cancer cells -- can be used to predict whether or not a melanoma patient will respond to immunotherapy. Their findings will help clinicians select treatments that are most likely to be effective for their patients.

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Researchers shed light on how to predict which skin cancer patients are most likely to respond to immunotherapy

An international team of UK and US scientists discovered that the activity of macrophages -- a type of white blood cell that engulf pathogens and cancer cells -- can be used to predict whether or not a melanoma patient will respond to immunotherapy. Their findings will help clinicians select treatments that are most likely to be effective for their patients.

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Wednesday, January 8, 2025

Exploring the eco-friendly future of antibiotic particles

Goji berries are a ubiquitous superfood known for a multitude of health benefits, including their antibiotic properties. Researchers have now found an effective way to harvest silver nanoparticles from these berries. They created the nanoparticles by drying, grinding, and then filtering the goji berries to create an extract. Then, they added chemical silver nitrate (AgNO3) and reduced the solution. The silver nanoparticles were confirmed using visualization techniques and tested for their antimicrobial activity.

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'Sandwich carers' experience decline in mental and physical health

People who care for both their children and older family members -- also known as 'sandwich carers' -- suffer from deterioration in both their mental and physical health over time, finds a new study.

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Tuesday, January 7, 2025

Your work habits may be threatening your sleep

A new study examined data from more than 1,000 workers over a 10-year period. Sedentary workers experience a 37% increase in insomnia-like symptoms. Employees working nontraditional schedules experience a 66% greater risk of needing 'catch-up sleep.'

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Your work habits may be threatening your sleep

A new study examined data from more than 1,000 workers over a 10-year period. Sedentary workers experience a 37% increase in insomnia-like symptoms. Employees working nontraditional schedules experience a 66% greater risk of needing 'catch-up sleep.'

from Top Health News -- ScienceDaily https://ift.tt/0MfVFYR

Monday, January 6, 2025

New mechanism discovered that triggers immune response in cells with damaged DNA

A research team has revealed a previously unknown mechanism that triggers an inflammatory immune response in cells when their DNA is damaged. This discovery deepens the understanding of a new type of cell signaling that may lead to more effective treatments for cancer.

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Sunday, January 5, 2025

Age matters: Kidney disorder indicator gains precision

A team has devised a more accurate way of measuring an indicator of kidney function known as glomerular filtration rate (GFR) by taking aging into account.

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Age matters: Kidney disorder indicator gains precision

A team has devised a more accurate way of measuring an indicator of kidney function known as glomerular filtration rate (GFR) by taking aging into account.

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Saturday, January 4, 2025

Brain study challenges long-held views about Parkinson's movement disorders

Researchers uncovered new findings about involuntary muscle movements that come with long-term administration of Parkinson's drug levodopa.

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Friday, January 3, 2025

Enzyme promoting tumor growth and spread in pancreatic cancer identified

An enzyme called MICAL2 promotes tumor growth and metastasis in the most common form of pancreatic cancer, according to a new study.

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Genetics of alternating sexes in walnuts

Biologists have revealed genetics behind the alternating sexes of walnut trees. The research reveals a mechanism that has been stable in walnuts and their ancestors going back 40 million years -- and which has some parallels to sex determination in humans and other animals.

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Thursday, January 2, 2025

Detecting disease with only a single molecule

Scientists have developed a nanopore-based tool that could help diagnose illnesses much faster and with greater precision than current tests allow, by capturing signals from individual molecules.

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Pupil size in sleep reveals how memories are sorted, preserved

Researchers have found the pupil is key to understanding how, and when, the brain forms strong, long-lasting memories.

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Wednesday, January 1, 2025

Key players in brain aging: New research identifies age-related damage on a cellular level

Scientists have identified the molecular changes that occur in the brains of aging mice and located a hot spot where much of that damage is centralized. The cells in the area are also connected with metabolism, suggesting a connection between diet and brain health.

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Ancient DNA unlocks new understanding of migrations in the first millennium AD

Waves of human migration across Europe during the first millennium AD have been revealed using a more precise method of analysing ancestry with ancient DNA, in research led by the Francis Crick Institute.

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Scientists pin down the origins of a fast radio burst

Astronomers pinned down the origins of at least one fast radio burst, a brief and brilliant explosion of radio waves emitted by an extremely compact object. The team's novel technique might also reveal the sources of other FRBs.

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New study uncovers key insights into protein interactions in Duchenne muscular dystrophy, paving way for more targeted therapies

A groundbreaking study has shed light on the complex interactions between dystrophin, a protein critical to muscle stability, and its partner protein, dystrobrevin, offering new pathways for understanding and treating Duchenne Muscular Dystrophy (DMD).

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New study uncovers key insights into protein interactions in Duchenne muscular dystrophy, paving way for more targeted therapies

A groundbreaking study has shed light on the complex interactions between dystrophin, a protein critical to muscle stability, and its partner protein, dystrobrevin, offering new pathways for understanding and treating Duchenne Muscular Dystrophy (DMD).

from Top Health News -- ScienceDaily https://ift.tt/9DfKG0x

Only 13 % know: The one-minute self-exam that could save young men’s lives

A new survey shows most Americans wrongly think testicular cancer is an older man's issue, despite it most commonly affecting men aged 2...