A team of researchers has found that transplanting sheets of clonally expanded heart cells improves heart function after a heart attack in mice. The cells secreted a molecule that induced the migration of endothelial cells and prevented oxidative stress, leading to improved heart function.
Scientists at Stanford University School of Medicine have created fluorescent probes that can noninvasively image apoptosis in living tumors, allowing for the gauge of treatment effectiveness. The probes bind exclusively to caspases, enzymes regulating cell death, and respond with light emission, highlighting dying cells.
The American Society of Hematology is honoring six scientists for their significant contributions to hematologic diseases, including the diagnosis and treatment of lymphomas and leukemia. The awards recognize pioneering research achievements and outstanding leadership in advancing the field of hematology.
A new study identifies a group of individuals born with genetic mutations that increase their risk of developing colon cancer. The study found that these mutations affect the glycosylation process, leading to alterations in mucus production and tumor development.
A study published in the Journal of Gastrointestinal Surgery found that taking probiotics after Roux-en-Y gastric bypass surgery can help obese patients shed more pounds. Probiotics also helped improve levels of vitamin B-12, which are often deficient after gastric-bypass surgery.
A Yale team has discovered a repulsive light force that can be used to control components on silicon microchips, paving the way for faster and more efficient nanodevices. The researchers found that by manipulating out-of-phase light beams, they could create a controlled repulsive force with tunable intensity.
A study at Penn State has identified over 16,000 active genes in mouse brains during embryonic development and post-natal stages. These genes are linked to cognitive and sensory abilities and may hold the key to developing treatments for neurological disorders such as autism and Alzheimer's disease.
A study published in Archives of Ophthalmology found that collagen copolymer lens implantation is effective in correcting moderate to high myopia over four years. The procedure has been shown to provide stable correction with minimal complications, but longer-term follow-up is necessary to assess potential late-onset issues.
Two studies found a strong association between PTSD and increased Alzheimer's risk, but moderate alcohol consumption was shown to lower this risk. Adults also had limited knowledge about the relationship between heart health and brain health.
Patients with multiple sclerosis who smoke experience a more rapid progression of their disease, according to a report in the July issue of Archives of Neurology. Current smokers had significantly more severe disease at the beginning of the study and were more likely to have primary progressive MS.
Two papers published in APS Physics journals describe different electron behavior in iron-based superconductors, suggesting distinct origins. The findings challenge theories on the similarities between these materials and cuprates, potentially altering the direction of research in this field.
A Purdue University study found that rotating herbicides with glyphosate can significantly reduce resistant marestail weeds, leading to a 95% decrease in viable seeds. This diversification strategy also increases crop yield potential by reducing weed populations.
Individuals with higher levels of education and significant impairment by Parkinson's disease require treatment earlier than others. Higher education is independently associated with an increased need for symptomatic treatment.
Researchers found that inhibiting Nox4 substantially inhibits hemangioma growth in a mouse model, while transplantation of cardiac progenitor cells improves heart function after myocardial infarction. Additionally, IL-17 and IL-22 play a crucial role in protecting individuals from developing kala azar, a lethal parasite disease.
The Alzheimer's Association honored six researchers with lifetime achievement awards for their pioneering work in advancing Alzheimer's research. The awards acknowledged significant advancements in anti-dementia drug therapies and early detection, paving the way for defeating the disease.
Glaucoma surgical procedures have been increasing, but Medicare payments for the procedures have been decreasing. The analysis found that average payments for trabeculoplasties decreased over time, while annual payments for cyclodestructive procedures and shunt-related procedures increased.
Research shows a significant increase in people with Alzheimer's and dementia among the 'oldest old', aged 90+, in Europe. The prevalence of dementia standardized on the Italian population was 22.9%, with higher rates in women, increasing with advancing age.
Researchers at UT Southwestern Medical Center found people with Parkinson's disease have significantly higher blood levels of a particular pesticide than healthy individuals. The study may provide the basis for a beta-HCH blood test to identify those at risk for developing the disease.
Researchers at McMaster University developed a method for printing toxin-detecting biosensors on paper using an inkjet printer, utilizing lateral flow sensing technology. The sensors retain enzyme activity for months, making them suitable for monitoring environmental toxins and detecting diseases in remote settings.
A new neuroimaging study finds that honest people show no additional neural activity when telling the truth, implying that extra cognitive processes are not necessary to choose honesty. In contrast, dishonest individuals exhibit increased activity in control-related brain regions when tempted to lie.
The Antarctic Marine Geology Research Facility at FSU has received a $2.5M grant from the National Science Foundation, double its previous funding. The facility serves as a national repository for marine sediment samples and provides clues to a geologic history stretching back 80 million years.
Scientists have identified three previously unknown genes in E. coli that are essential for the survival of the bacteria and one out of the three could be implicated in cancer or developmental abnormalities in humans. These genes are also found in numerous other creatures, suggesting a vital role for them across many species.
A study by Riley Hospital for Children and Indiana University School of Medicine found that parents of children with special health care needs mostly use the right type of car seat, but often misuse it. The researchers also discovered that many children would benefit from additional body-positioning support to ensure safe transportation.
Researchers found that sexually produced evening primrose plants withstand caterpillar attacks better than asexual relatives. The study suggests that plant sex influences the evolution of defenses against herbivores.
Researchers have developed computational tools to decode and rapidly determine whether natural compounds are new or patented. These advances will speed the discovery process, enabling scientists to characterize ring-shaped nonribosomal peptides and accelerate the timeline for bringing new therapies into clinical application.
Researchers from Northwestern University have successfully grown a woman's immature egg cells, contained in a tiny sac called a follicle, to a healthy and nearly mature egg in the laboratory. This breakthrough could provide a new fertility option for women whose cancer treatments destroy their ability to reproduce.
Researchers at UCLA have developed a method to measure the amount of amyloid beta absorbed by immune cells in the blood, which may help predict Alzheimer's risk. The study found that patients with Alzheimer's disease showed lower uptake of amyloid beta compared to healthy controls.
A new Northwestern University study found that a child's brain has trouble differentiating key sounds in noisy classrooms, leading to reading difficulties. The research suggests that auditory training and reducing background noise can help improve reading skills in poor readers.
Researchers found that curcumin delays tumor development and reduces multiplicity of progestin-accelerated tumors. Curcumin inhibits VEGF secretion from breast cancer cells, potentially reducing breast cancer risk for women exposed to hormone replacement therapy.
A new UCLA study examines parents' concerns about development, learning and behavior for young children of Mexican origin, identifying a significant association with family documentation status. The research highlights the need for timely access to primary care and reassurance from pediatric providers to address parental worries.
Researchers found that ultrasound outperforms symptom analysis in detecting ovarian cancer, with TVS performing better for malignancies. Racial disparities in colorectal cancer survival dissipate after adjusting for demographic and clinical factors. Thyroid cancer incidence increases across all tumor sizes, suggesting screening is not ...
The July/August issue of Annals of Family Medicine explores the paradox of primary care, where primary care is associated with poorer quality care for individual diseases yet higher value health care at the level of the whole person. Chronic disease management was found to be superior in community health centers and practices with nurs...
A Swedish researcher has discovered a bony clasper in a primitive fossil fish, completing the picture of placoderm reproduction and providing a 400-million-year pedigree for modern sharks' reproductive biology. The finding sheds light on how sharks reproduce, with the clasper serving as an extension of the pelvic fin.
A novel gene, ANKRD1, has been identified as a cause of dilated cardiomyopathy (DCM), a condition where the heart becomes weakened and enlarged. The study found three disease-associated variants of the gene in four male patients with DCM.
A flavonoid derived from citrus fruit, naringenin, has shown promise in preventing weight gain and metabolic syndrome. In a study, mice fed a high-fat diet were treated with naringenin, which corrected triglyceride and cholesterol levels, prevented insulin resistance, and normalized glucose metabolism.
A large analysis of six studies found that consistent condom use reduced the risk of acquiring herpes simplex virus 2 by 30%. The risk of infection decreased with increased condom use during anal or vaginal sex, and there were no significant differences in protection between men and women.
The National Oceanic and Atmospheric Administration (NOAA) has prohibited commercial krill harvesting in the Exclusive Economic Zone off the coasts of California, Oregon, and Washington. This rule aims to protect the krill's role as a key food source for numerous marine species, including some listed as threatened or endangered.
Cells experiencing DNA damage send signals to neighboring cells, triggering an inflammatory response that can lead to cancer and accelerated aging. The discovery provides a new target for preventing these processes.
The American Institute of Aeronautics and Astronautics will honor outstanding achievements in rocket propulsion systems, unsteady combustion, ground testing, and engineering through various awards. The winners include William Sirignano, Vigor Yang, Stan Powell, Frederick Schauer, David McGrath, Suresh Aggarwal, and Cynthia Obringer.
A Japanese research group discovered that two types of palmitoylating enzymes regulate synaptic protein PSD-95 in different ways, contributing to stable synaptic activity. This finding suggests individual enzymes have distinct functions and may represent therapeutic targets for neurological disorders.
A study published in PLoS Medicine found that encouraging the use of pedometers and promoting physical activity through mass media campaigns are the most cost-effective interventions. These programs can reduce death and illness from heart disease, stroke, cancer, and diabetes, with an overall cost-saving for the health sector.
New research reveals a significant link between same-gender parent relationships and childhood obesity. Girls with obese mothers are more likely to struggle with weight problems in childhood, while similar patterns exist between obese fathers and sons.
This collection of outstanding articles explores science and skeptical inquiry, public controversies, and investigating pseudoscientific claims. The selected essays provide a timely new exploration of important public issues within science, including evolution vs. intelligent design and the future of vaccinations.
States with strict privacy laws have seen a significant decline in the adoption of electronic medical records, with a 24% reduction in sharing. This drop is attributed to the suppression of interactive benefits of EMRs due to regulatory restrictions.
DNA exists in a slightly underwound state, and its status changes in waves generated by normal cell functions such as replication, transcription, repair, and recombination. The researchers found that DNA can be underwound to the point where one of two bases flips out, relieving stress on the molecule.
Researchers at the University of Arizona have successfully sequenced the genetic code of West African cultivated rice, a key step in breeding hardier Asian strains. This breakthrough could help address global issues such as food scarcity and climate change, with potential applications for other crops like wheat, corn, and sorghum.
A 16-year-old girl, Hannah Clark, has made a remarkable recovery after having her transplanted heart removed 10.5 years after it was implanted. Her own heart had recovered sufficiently to operate on its own, allowing the donor heart to be removed without major complications.
A study found that CT scans used to screen for coronary artery calcification could lead to an estimated 42 additional radiation-induced cancer cases per 100,000 men and 62 cases per 100,000 women. The wide dose variation from different scanners resulted in a wide range of estimated radiation-induced cancer risks.
IBN researchers have developed a simple, room-temperature process to synthesize nanoparticles inexpensively. The new chemical synthesis uses an aqueous solution and an organic solvent, allowing metal ions to be extracted from water without producing toxic chemicals.
Researchers studied effects of lighting interventions, stress and fatigue monitoring on crew performance. The 105-Day Mars Mission aimed to improve work performance in a realistic setting.
Australia's top scientists will present on using mathematical models to understand complex systems, including climate change and agricultural sustainability. The conference will feature models assessing water availability, predicting aircraft distances for safer skies, and evaluating coral bleaching impacts.
Research team finds that women's immune system activates more strongly in response to HIV-1, leading to higher levels of CD8+ T cell activation and faster disease progression. The study suggests that targeting this pathway may lead to new treatment strategies.
Research by University of Arizona College of Pharmacy found that prescribers identify only 42.7% of drug interactions correctly. This highlights the need for better education and awareness about potential drug-drug interactions among health professionals.
Researchers at Cornell University tracked 1.6 million online news sites to analyze the life cycle of news stories, finding a consistent rhythm as they rise and fall in popularity. The study reveals a 'heartbeat' pattern of handoffs between mainstream media and blogs.
A new study found that a specific gene, DRD4, is linked to children's temperament and brain activity, with those having the long version of the gene exhibiting more soothable behavior. However, when this gene was combined with increased right frontal cortex activity, it led to attention problems in children.
A University of Denver study found that couples living together before engagement are more likely to struggle, with a higher chance of getting divorced. The researchers also discovered that couples who lived together before engagement reported lower marital satisfaction.
A study of 231 men found that only 1% of child pornography consumers went on to commit a hands-on sex offense. The researchers suggest that the motivation and recidivism rates differ between child pornography consumption and physical assault.
A rapid and inexpensive drug-screening method developed by Whitehead Institute scientists uses baker's yeast to synthesize and screen molecules, cutting testing time to weeks. The technique targets protein-protein interactions found in cellular processes, offering new potential for treating diseases like Parkinson's.
A new chemotherapy regimen, ABVE-PC, has been identified as a successful treatment for pediatric Hodgkin lymphoma, reducing long-term risks and improving survival rates. The treatment delivers dose-dense drug delivery while minimizing cumulative doses, resulting in lower toxicity and improved outcomes.
A study found that transforming growth factor B1 (TGF-B1) is higher in blacks compared to whites, increasing the risk of hypertension and renal disease. Higher levels of TGF-B1 are also linked to body mass index and metabolic syndrome.