Researchers have identified 688 genes involved in building human cilia, which help push fluid and molecules around outside cells. This discovery sheds new light on the causes of a rare condition called complex obesity syndrome.
Researchers at Mayo Clinic found that frozen sperm are just as effective as fresh sperm in in vitro fertilization. The cumulative live birth rate was higher for frozen sperm, with a success rate of 53.1 percent compared to 51.6 percent for fresh sperm.
Researchers at the University of Toronto have successfully created a three-photon entangled state, enabling precise measurements that surpass those made by single photons. The breakthrough has the potential to revolutionize fields like quantum computing and gravitational wave detection.
A recent study by Merrill and colleagues found that soy GlcCer, a type of sphingolipid, can reduce the number of tumors in mice with colon cancer. The study's results suggest that consuming soybeans may help prevent colon cancer by targeting beta-catenin, a protein involved in cell growth.
Researchers discovered that migratory birds can detect fluctuations in magnetic fields using a molecular substrate for chemical reactions. The study found that the birds' sensitivity to artificial magnetic fields ruled out the use of simple magnetic materials in their beaks or brains.
Researchers at VIB have developed nanobodies, tiny proteins that can target specific cancer cells. These nanobodies have shown promise in treating various diseases, including inflammatory and heart conditions.
A gene mutation may cause misrouting of proteins in retinal cells, leading to macular degeneration. Research aims to understand the biological function of the gene and its role in fatty acid metabolism.
Recent study by Yale University's Richard Easther and colleagues proposes that the Cosmic Microwave Background (CMB) may contain evidence for string theory. The CMB is thought to hold a fossilized record of the first moments of time, with subtle fluctuations potentially revealing signs of string theory.
A study by University of Washington researchers exposes the existence of two distinct circadian clocks within the mammalian brain, one tied to an internal schedule and another influenced by external light-dark cycles. The discovery sheds new light on how artificial day-night cycles can disrupt physiological rhythms in mammals.
Researchers used fMRI to study brain activity in response to rewards, finding that reward centers were activated when participants actively received the reward. Active participation was found to be more salient and arousing than passive receipt, highlighting its importance for brain function.
Since 1991, end-of-life care has seen significant improvements in palliative care and hospice availability. Timothy Quill's father's death provided a unique opportunity to illustrate the good and bad in end-of-life care, highlighting the need for consistent availability of care options.
Scientists have developed fruit flies with fluorescent genes to study memory formation, discovering that a specific set of neurons, called projection neurons, show increased active connections after learning. The new synaptic activity disappeared within minutes but the flies continued to avoid the odor they associated with the shock.
Researchers recorded activity of individual hippocampal neurons as monkeys retrieved well-learned information from memory, finding stronger response to familiar stimuli. The study provides strong evidence for a memory signal specific to well-learned information and may inform treatments for Alzheimer's Disease.
Researchers at Duke University found that ringtails and mongoose lemurs can learn sequences of pictures and discriminate quantities. The animals show a systematic learning ability and can recognize larger quantities, but their numerical abilities are not as sophisticated as those of monkeys and apes.
A recent study has found that minimally invasive laparoscopically assisted colectomy is an acceptable alternative for treating colon cancer when performed by experienced surgeons. The procedure's success depends on stringent surgical standards being followed.
A study by UC Berkeley post-doctoral fellow Vance T. Vredenburg shows that non-native trout have devastated native frog populations in high-Sierra lakes, but removing fish allows the frogs to flourish. The mountain yellow-legged frog has declined dramatically due to introduced trout, with only 5,000 adults remaining in its range.
The Geisel School of Medicine at Dartmouth has secured a $9 million grant to study Neurospora crassa, a fungus with significant animal, human and plant pathogens. The research will focus on understanding the genetic functions of this model organism.
A team of European astronomers discovered a massive star surrounded by a huge accretion disc, pushing the understanding of high-mass star formation. The large disc, resembling a flared disc seen nearly edge-on, is associated with an hour-glass shaped reflection nebula and reveals details about star formation processes.
A new 'hyperactive' antifreeze protein has been identified in the blood of winter flounder, enabling them to withstand temperatures as low as -1.9 degrees Celsius. This discovery explains the previously unknown mechanism behind these fish's survival in polar oceans.
A seven-year international study involving 872 patients with colon cancer has resolved concerns about laparoscopic surgery, finding it to be as safe and effective as standard surgery. The study found similar rates of complications, cancer recurrence, and overall survival between the two groups.
Pearly mussel populations are declining due to negative growth rates and environmental degradation. Researchers urge simultaneous research and conservation actions to protect these ancient freshwater organisms.
Researchers at Tufts University are developing a flexible robot that can navigate through the human body and complex structures, inspired by the unique movement of caterpillars. The team is studying the nervous system control of caterpillar locomotion to replicate this movement and build soft-bodied robots.
Researchers created a controlled environment to test various weather conditions and their effects on post oak, bluestem grass, and juniper species. The study aims to understand how these changes may alter land use and wildlife survival in the region.
A new study confirms long-held theories that CWD can be transmitted through indirect means, including contaminated environments. The research suggests that environmental sources of infection may contribute to CWD epidemics, potentially altering management strategies for the disease.
Researchers found a broad range of nitrogen-to-phosphorus ratios possible in phytoplankton, contradicting the long-held Redfield ratio of 16:1. The new model takes into account varying growth conditions and optimal strategies for nutrient uptake, with implications for ocean ecosystem and climate change.
New research suggests two distinct brain areas, the hippocampus and subiculum, work together to process and store information for short-term memory. This finding broadens understanding of how memory works and could lead to more sensitive tests and treatments for conditions like Alzheimer's disease.
The US Department of Energy is developing a new supercomputer at Oak Ridge National Laboratory to enhance the nation's computing capability for complex simulations. The system will be open to researchers worldwide and enable breakthroughs in various science disciplines.
A study by Johns Hopkins Medicine found that showing graphic images of actual trauma to at-risk youth reduces their quantified beliefs supporting aggression. The research also suggests a reduction in the likelihood of youths resorting to violence to settle conflicts.
A team of scientists has successfully achieved the first live births of killer whales through artificial insemination. The study, led by Dr. Todd R. Robeck, used genome resource banking and artificial insemination to store sperm from male orcas for later use. This breakthrough may help maintain genetic diversity in captive marine mammals.
A pair of researchers from the University of Wisconsin-Madison developed mathematical models examining changes in a community's tolerance to environmental conditions like global warming or acid rain. They found that as individual species disappear, two forces act upon the community, making it more or less tolerant to the condition.
Researchers use zebrafish to study human heart valve formation and cancer risk, identifying novel actin molecules and ribosomal protein genes that predispose fish to malignant tumors. The findings suggest a causal relationship between early heart function and its final structure.
Researchers discovered a genetic mutation that interferes with heart muscle contraction, leading to defective heart valve formation. This study suggests that temporary glitches in early heartbeat may cause valve defects, potentially leading to new treatments for congenital heart defects.
A study by Northwestern University and the Framingham Heart Study found that parents with early-onset cardiovascular disease double the risk of heart attack or stroke in their children. Children with intermediate levels of risk factors are most affected, making parental cardiovascular disease a strong predictor of risk.
The Dartmouth College fMRI Data Center has archived over 70 complete studies with data from 1,000 individuals. Researchers can access the repository at no charge, fulfilling over 1,200 requests. The collection contributes to understanding human cognition.
A study found that childhood conduct problems predict depression, violence, and social phobia in young adults. Early conduct problems were a strong predictor of later violence, with children three and a half times more likely to engage in violent behavior.
A recent study found that requiring hospital gowns in intensive care units (ICUs) can save hospitals over $400,000 in annual costs associated with the spread of drug-resistant bacteria. The analysis, conducted over two-and-a-half years, also showed that gowns can provide a net benefit in terms of infection control.
The IU School of Medicine aims to integrate competency-based curriculum with the 'hidden curriculum' to improve practice and professionalism. The school's unique approach involves changing its culture to mirror the social context of care, teaching students about relationships and customer experience.
Researchers found that humpback whale flippers with tubercles exhibit nearly 8% better lift properties and 32% lower drag than sleek flipper designs. The study's findings have implications for improving airplane wing aerodynamics and reducing fuel consumption during flight.
Scientists have identified a key gene, Pax7, that regulates the transformation of adult stem cells into muscle cells in injured tissue. The study showed that introducing Pax7 to these stem cells can enable them to differentiate into functional muscle cells and aid in tissue repair.
Scripps researchers successfully engineered E. coli to produce myoglobin proteins with 22 amino acids, including unnatural O-methyl-L-tyrosine and L-homoglutamine. This breakthrough demonstrates the genetic code can be expanded beyond 20 amino acids, opening doors for novel protein designs.
A compound found in orange and tangerine peels has shown promise as a natural alternative for lowering LDL cholesterol without side effects. The compound, called polymethoxylated flavones (PMFs), was found to lower cholesterol levels by 32-40% in animal studies.
Scientists used two water dating methods, radiocarbon and helium-4, to determine the age of water in wells in Baldwin County, Alabama. The results showed that the ages ranged from 50 to 7,500 years, suggesting that saltwater intrusion could become a bigger issue in the future with global climate change.
University of Florida engineers have successfully installed a tiny on-chip antenna, enabling radio communication across distances of up to 16 feet. The achievement marks a significant step towards building an 'ultrasmall radio chip' for various applications, including border security and bridge monitoring.
Researchers developed two treatments to minimize nerve damage and facilitate nerve recovery, preserving ability to have an erection after radical prostatectomy. Muscle-derived cells and glial cell-derived neurotrophic factors improved erectile function in animal models with cavernous nerve injury.
A new study by Harvard Medical School researchers found that taking small, frequent doses of caffeine is the most effective way to stay awake. This dosing regimen builds up caffeine levels in sync with growing sleep pressure, counteracting its effects and improving cognitive performance.
Research finds that controlling parenting styles hinder struggling children's academic progress, while autonomy support improves performance and school grades. Parents who adopt an autonomy-supportive approach allow children to explore independently and generate problem-solving strategies.
The discovery of Suuwassea emilieae, a smaller relative of Diplodocus and Apatosaurus, provides significant insights into the fauna of the Morrison Formation. The new species features an anomalous second hole in its skull, which has puzzled paleontologists for years.
A new study published in Nature Neuroscience reveals that a specific group of neurons in the brain, known as the ARC pacemaker, play a crucial role in regulating hunger and satiety signals. This finely balanced mechanism can go wrong if one small error occurs, leading to difficulties in weight management through diet and exercise alone.
A University of Pittsburgh study shows Botox injections significantly reduce irritative symptoms and improve quality of life index by 62.3% and 56.5% respectively. Patients experienced increased flow rate and decreased residual urine without significant side effects.
Researchers found that smokers are interested in getting help to quit, with over two-thirds accepting cessation treatment offers. The study also showed that participants were more likely to follow through with treatment and stay abstinent, especially when offered face-to-face counseling.
A new study by UNC researchers reveals a high prevalence of chlamydia in US young adults, with rates significantly higher among black men and women. The study found that the infection was present in all racial groups but was most common in the South.
Researchers found that platelets can promote diabetic complications and contribute to inflammation in heart disease. They discovered a common Type II diabetes drug can dampen platelet inflammatory activity, potentially leading to new treatments for vascular diseases.
A multicentre, randomized, double-blind and placebo-controlled study is underway to evaluate the efficacy and safety of Tectin in moderate to severe inadequately controlled cancer-related pain. The trial has shown promising results, with almost three-quarters of patients experiencing a clinically meaningful analgesic response.
Researchers found that couples who have accurate pictures of their relationship, even if it's not ideal, tend to experience lower declines in marital satisfaction. In contrast, those with high expectations but poor relationship skills show steep declines in satisfaction over time. Lowering expectations may benefit couples with good rel...
Harvard Medical School establishes three endowed chairs in sleep medicine, marking an historic moment for the school and the field. The chairs will enable advanced scientific research and development of new treatments for sleep disorders.
A new vaccine has been shown to significantly reduce racial disparities in childhood pneumonia and meningitis incidence. By 2002, the vaccine had led to a decline of invasive pneumococcal disease cases among blacks by 46%, compared to a 36% decrease among whites.
Researchers at the Wildlife Conservation Society discovered a large population of jaguars in Bolivia's Kaa-Iya Park, estimated to be one of the largest in any protected area. The park, which covers over 34,000 square kilometers, is also home to a diverse range of other wildlife, including endangered species such as the Chacoan guanaco.
Penn State researchers aim to develop a small, effective pediatric heart assist system for infants, children, and teens. The goal is to create a device that can provide support for at least six months until the heart recovers or a donor heart is found.
Researchers propose a novel regimen of frequent low-dose caffeine to help shift workers and others stay awake. The strategy works by building up caffeine levels in sync with the homeostatic system's push for sleep.
A study published in JAMA found that a specific genetic variation in the COX-2 gene is associated with a reduced risk of myocardial infarction and ischemic stroke. The -765GC polymorphism was more prevalent in controls than in patients, resulting in a 52% lower relative risk of MI and a 67% lower relative risk of ischemic stroke.