A Stanford study compared two low-fat diets: one focused on avoiding saturated fat and cholesterol, the other including plenty of plant-based foods. The plant-based diet resulted in a significant 9.4% decrease in LDL cholesterol, while the conventional diet lowered it by 4.6%.
Researchers found that liver cells express CB1 receptors, which activate a signaling pathway increasing fatty acid synthesis. This activation is similar to brain and may be a target for metabolic regulation and appetite control.
Scientists detected gamma rays in thunderstorms, contradicting a long-held theory. The study found lightning strokes preceding the gamma rays, suggesting a negative cause-and-effect relationship.
Researchers discovered that FGF-21 regulates glucose uptake in human fat cells, significantly reducing plasma glucose levels and triglycerides. FGF-21 also protected animals from diet-induced obesity, providing evidence for its therapeutic potential in treating type 2 diabetes.
A recent study led by Elizabeth Parks from the University of Minnesota has made a groundbreaking discovery about the origin of fatty liver disease. The research found that excess dietary fat can lead to liver toxicity, causing it to malfunction in its role as the body's central storage and distribution center for fat.
Scientists have identified 35 genes essential for regeneration in planarians, a discovery that could lead to new insights into human regenerative biology and the development of potential treatments for diseases. The study also highlights the potential of planarians as a genetically sound model for human biology.
The study finds that major cardiovascular risk factors, such as obesity and high blood pressure, are increasing in low-income and middle-income countries, particularly in cities. As a result, these countries will face high levels of cardiovascular disease alongside infectious diseases.
AESEDA aims to entice minority students to enroll in Penn State's College of Earth and Mineral Sciences, with a focus on Africa connection. The program involves partnerships with HBCUs and Nigerian universities to develop natural resources and energy management in Africa.
Researchers at Cold Spring Harbor Laboratory investigate the concept of return to normalcy in genetic systems. They uncover new insights into how cells can re-establish normal gene expression after perturbations.
A study of nearly 4,500 men and women found that full-time workers who spent more time on sedentary activities engaged in significantly less exercise than part-time workers. This is likely due to the limited free time available to full-time workers, leading to a greater reliance on leisure activities.
Researchers at VCU have created a unique polymer coating that switches from being hydrophilic to hydrophobic when exposed to water, offering potential applications in medical testing and fluid control. The coating's reversible properties make it suitable for various industries.
A new screening tool has been developed to assess children's exposure to secondhand smoke by asking caregivers about smoking factors in the home. The tool, which correlates with hair cotinine levels, can help pediatricians identify high-risk children and facilitate assessment in busy practices.
Accumulated liver lipids come from serum fatty acids, newly made fatty acids within the liver, and dietary fatty acids. Insulin-sensitizing agents may help reduce oxidative stress and treat NAFLD.
A new study published in Annals of Internal Medicine found that blood stream invasion occurs in nearly half of untreated adults with erythema migrans, a tell-tale bull's eye rash. Younger patients and those with prior Lyme disease experience lower rates of invasion.
Researchers discovered FGF-21 regulates glucose uptake in human fat cells, decreasing plasma glucose levels and triglycerides in diabetic animals. Additionally, FGF-21 protected animals from diet-induced obesity, defining a functional role for FGF-21 in vivo.
Researchers at Oregon State University have used X-ray crystallography to determine the three-dimensional structures of nearly all possible sequences of a macromolecule, creating a map of DNA structure. This breakthrough should fundamentally improve our understanding of genetic function and biological processes.
Scientists have found that retinoic acid, a cancer-fighting vitamin A derivative, enters a cell's nucleus via protein CRABP-II by exposing positive charges on its amino acids. This discovery could lead to new treatments for various diseases, including leukemia and breast cancer.
A Northwestern Memorial HealthCare study identified a gene variant TGFBR1*6A associated with a high risk of colorectal cancer. The variant was found to be more prevalent among patients without a mutation in other genes, suggesting its potent contribution to familial cases.
A study published in Developmental Cell identifies two genes, HES-1 and HLF, that regulate human blood stem cell behavior. These genes enhance cell-cycle progression and inhibit premature cell death in hematopoietic stem cells.
Children living with single mothers and grandparents in the household show similar test scores to those in married-couple families. Research highlights the importance of grandparents' role in supporting children during adolescence. Grandparents can serve as a source of strength for youth navigating this critical period.
The study highlights substantial risks of farm salmon escapes into the North Atlantic and other regions, threatening native fish populations. Escapes lead to interbreeding, loss of fitness, and genetic diversity, as well as parasite transmission to wild stocks.
Mayo researchers identified a genetic glitch in the heart's electrical system, which can lead to sudden and unexpected drownings. The study found two cases of proficient swimmers who died unexpectedly while swimming, highlighting the importance of further research into this phenomenon.
USC researchers successfully implanted six blind patients with a retinal prosthesis, enabling them to detect light, identify objects, and perceive motion. The device shows promise for treating degenerative eye diseases like retinitis pigmentosa and age-related macular degeneration.
A study comparing human and chimpanzee genomes identified genes involved in sensory perception and spermatogenesis, as well as a strong link between immune defense and positive selection. The authors suggest that an evolutionary arms race may have driven the development of tumor-suppressor and apoptosis genes.
Researchers observed B cells' random and directed migration to helper T cells, guided by chemokine receptor CCR7 and cognate antigen. The interaction enables stable formation of motile conjugates with activated T cells.
A large European study found that only 60% of patients with heart failure were treated according to the ESC guidelines for the five most commonly used cardiac drugs. Adherence to treatment guidelines was independently correlated with patient outcomes, including hospitalization rates and time to readmission.
A three-question model asks about parental smoking habits and home environment to gauge ETS exposure risk. The study used hair samples to measure cotinine levels, finding that parental reports often underestimated child exposure.
Research suggests children who consistently eat breakfast have superior nutritional profiles compared to those skipping breakfast. The study also found a correlation between breakfast consumption and improved cognitive function, including memory and test grades.
Researchers found that both medication (nefazodone) and psychotherapy (CBASP) are effective in treating chronic depression even when the initial treatment fails. The study showed that switching between these two treatments resulted in improved symptoms for many patients, suggesting a strong basis for adjusting treatment plans.
Researchers have identified a biological pathway for a potent molecule, IL-10, that can delay rejection of transplanted organs by preventing blood-vessel deterioration. The study used rat models and found that a single muscular injection of IL-10 could provide long-term therapeutic effects.
A study found that male mouse fetuses exposed to estrogenic chemicals developed more ducts in their prostate and narrowed urethras, raising concerns for human health. The researchers used low doses of ethinylestradiol and bisphenol A, which are commonly found in oral contraceptives and plastics.
The Hox gene complex has been rearranged differently in several Drosophila species, but their expression and function are conserved. The research suggests that Hox gene clustering is a result of evolutionary history rather than functional necessity.
The FDA approved clofarabine for pediatric patients with relapsed or refractory ALL, built on years of effective use of pre-1980 drugs and adaptable for adult use later. Researchers say this approval is crucial for giving children access to new anti-cancer drugs.
Researchers developed an Interactive Scanning Electron Microscope (iSEM) system to simulate the capabilities of a $200,000 analytical instrument in classrooms. Students can measure and analyze objects in detail, simulating real-world experiments previously only accessible to graduate students.
A study of NYC public school children found a high proportion had a probable mental disorder six months after the 9/11 attack. The severity of exposure was related to disorder rates, with family exposure being a stronger factor than direct exposure.
Researchers identified 18 genes that predict which patients will respond to Hepatitis C treatment, offering a potential simple blood test for early diagnosis. The study found that these genes are key to the body's ability to eliminate the virus.
A six-week cycling study found that regular exercise activates hundreds of genes in young, healthy men, some linked to diabetes and cardiovascular disease. The study also showed that individuals who improved their performance most activated more genes in the muscles, a phenomenon not previously seen.
New research reveals that accumulated liver lipids originate from serum fatty acids, newly produced fatty acids within the liver, and dietary fatty acids. The study also highlights the potential role of endocannabinoids in regulating liver metabolism and appetite control. Additionally, a companion paper explores the relationship betwee...
Researchers used two-photon microscopy to visualize thymocyte migration in intact thymuses. The study found that positively selected T cells follow a clear directional course to the medulla, suggesting long-range signaling cues guide this process.
The HealthGrades Patient Safety in American Hospitals Study found that top-performing hospitals had 267,151 fewer patient safety incidents and 48,417 fewer deaths compared to the bottom 10%. Hospital-acquired infections were a significant contributor to these differences.
A Neandertal femur found in France suggests that the transition from Middle Paleolithic to Upper Paleolithic marked a shift to greater mobility among humans. Close competition for food and space persisted with hyenas during this period, indicating a more complex human landscape.
A new research program aims to create advanced nanotechnologies to analyze plaque formation on the molecular level and detect it at early stages. The program will focus on detecting plaque and pinpointing its genetic causes with three types of nanostructured probes.
The study found that obesity prevalence increased by 276% in the highest income group, compared to 144% in lower-income groups. Obesity rates are now similar across all income categories, with the lowest and highest groups experiencing rapid increases.
A survey of parents with non-medical exemptions found that 69% cited vaccine harm as a reason for exemption. Parents with exempt children reported lower trust in government and medical sources, while also expressing more confidence in alternative medicine professionals.
The Alliance for Microbicide Development and the Global Campaign for Microbicides will receive grants to support science and policy research, public education, and advocacy. The funding will help develop evidence-based policies for microbicide R&D and investments.
Researchers at UT Southwestern Medical Center have discovered a novel anti-leukemia drug, PD166326, that is nearly 100 times more potent than the current treatment, Gleevec. The study shows the new drug effectively inhibits mutated enzyme activity and reduces white blood cell count in mice with leukemia.
Metal stents have been shown to be a safe and effective treatment for bile duct obstructions caused by pancreatic cancer. The study found that 90% of patients had open stents after three months and 80% after one year, with minimal complications.
A new study found no association between hormonal contraceptive use and changes in CD4+ cell count or viral load suppression after initiating HAART. Continuous HAART use significantly improved HIV disease progression outcomes, with increased CD4+ counts and undetectable viral loads.
A randomized trial of 202 participants showed a 23% reduction in all-cause mortality, a 30% reduction in cardiovascular disease mortality, and a 49% reduction in cancer mortality. The study found that Transcendental Meditation reduces risk factors for heart disease and other chronic disorders.
A new study found that peginterferon-alfa-2b with ribavirin was well-tolerated and yielded a sustained viral response in 59% of children with chronic hepatitis C. Patients infected via needle or with normal liver enzyme levels responded better to treatment.
A University of California, San Diego team discovered a receptor-ligand pair that plays a critical role in the final step of blood vessel formation, allowing newly constructed vessels to 'lock' together. Inhibiting this integrin protein may starve tumors and combat cancer.
A new study reveals that E.coli bacteremia affects up to 53,000 non-institutionalized seniors each year, with a significant risk of septic shock and death. Researchers suggest developing a vaccine could save many lives, but currently, there is no similar vaccine available.
In archaea, a specialized enzyme uses RNA as a guide to pseudouridylate specific RNA molecules. This modification impacts the stability, localization, and translation efficiency of target RNAs.
Exercise therapy has a small beneficial effect on chronic low back pain but no impact on shorter-term pain, according to two new studies. A plant-based low-fat diet is also better at lowering LDL cholesterol levels than a similar diet without veggies.
Researchers found that high oxygen levels can weaken a protective mechanism triggered by hypoxia, leading to increased lung damage. The study suggests that therapeutic activators targeting the A2AR signaling pathway may mitigate these effects.
A five-year study aims to investigate why coyotes are becoming more aggressive in urban and suburban areas of New York state, with researchers seeking ways to prevent conflicts with humans. The study will also survey public attitudes and behaviors relating to coyotes, as well as develop methods to induce fear without harm.
Scientists have discovered an enzyme that suppresses heart cell replication, and by inhibiting it, they can enable heart cells to proliferate. This breakthrough could lead to new strategies for regenerating tissue after heart attacks and may be a more practical alternative to stem-cell therapy.
A new strategy, developed by the University of Toronto Joint Centre for Bioethics, aims to integrate and value ethical decision-making in healthcare. The 'hub and spokes' model assigns a central ethics resource to share knowledge and guidance with frontline employees, promoting accountability and sustainability.
Research suggests that daily acetaminophen use is associated with a higher prevalence of asthma and chronic obstructive pulmonary disease (COPD), as well as decreased lung function. In contrast, vitamin C supplementation during pregnancy can limit the negative effects of nicotine on fetal lung tissue.
A new study estimates that polluted O.C. beaches result in significant healthcare costs, affecting both locals and tourists. The research, conducted by UCI researchers, provides policymakers with a valuable tool for evaluating the cost-benefit of cleaning up coastal waters.
A new study found that MPAA ratings fail to predict the frequency of violence in individual films, with PG and R ratings containing a wide range of violent acts. The study suggests that objective content descriptions and measures of explicit violence are better indicators of big screen violence.
Researchers found that high levels of oxygen can exacerbate lung inflammation in mice by triggering the release of adenosine, a molecule that protects against tissue damage. The study suggests that adenosine substitutes may be useful in preventing lung damage in patients with acute lung inflammation.
Researchers identified genes required for stem cell function and regeneration in planarians, providing insights into human development and health. The study used RNA interference to analyze gene function in intact animals and on proliferation of adult stem cells.
Research by A. Saari Csallany suggests that repeated heating of polyunsaturated oils for frying can lead to the accumulation of toxic compounds like HNE. The study aims to determine the optimal lower temperature for oil heating to prevent HNE formation and its related diseases.