The study found that dopamine-releasing neurons respond more strongly to neutral odor stimuli after training, indicating a newly formed sensory association. The findings suggest that the mechanisms for learning and environmental stimulus evaluation are similar in mammals and fruit flies.
A new approach to preventing SAD by starting antidepressant treatment in the fall has shown promise. Early intervention with bupropion-XL reduced the risk of fall-winter depression by 44% in patients with a history of recurring episodes.
Researchers found that statin drugs can reverse learning deficits in mice with Neurofibromatosis type 1 (NF1), a condition affecting five percent of the world population. The treatment enables normal brain cell communication, creating physical changes in the brain and improving memory.
A study found that gun-safety counseling improved safe storage practices among gun-owning families, with 50.9% of intervention group families showing improvement compared to 12.3% of control group families. Gun locks also significantly reduced the risk of injury.
Researchers at Penn have developed a new method using high-dimensional shape transformations to identify unique structural brain characteristics in schizophrenia patients. The study demonstrates the potential for early detection and prevention of the disease through MRI analysis.
Researchers found that traumatic stress can occur in children and their parents after a crash, even if no child was injured. Clinicians are recommended to screen all children involved in crashes and their parents for acute stress symptoms.
A recent Stanford brain study found that women's brains activate more regions involved in language processing and working memory when viewing funny cartoons. Women also showed a stronger response to the rewarding feelings associated with humor, indicating they may experience greater pleasure from unexpected jokes.
A prospective study found that long-term aspirin use reduces the risk of developing oesophageal adenocarcinoma in people with Barrett's oesophagus. Current users had a significantly lower risk than never users, with a hazard ratio of 0.32.
Michal Kowalewski, a Virginia Tech geobiologist, has won the Schuchert Award for his groundbreaking research on ancient predators and their ecosystems. His work reveals that predators' struggle to survive may be due to menu selection errors over 500 million years ago.
A team of scientists proposes releasing captive-bred California condors near marine mammal breeding grounds to restore their natural diet. The study suggests that whales and seals have been an integral part of the condor's diet since the last Ice Age, providing a potential solution for conserving endangered populations.
Researchers reported that most volunteers developed strong, specific, and long-lasting immune responses to the MSP3 protein after vaccination. The vaccine also demonstrated functional antibody responses that could inhibit malaria parasite growth in laboratory assays.
Associate Professor Peter Dodd's team is using microarray analysis to study brain tissue from dead alcoholics, aiming to identify genes responsible for the damage. The research could lead to a better understanding of neurological diseases and potentially develop a drug to reduce alcohol dependence.
Researchers found that wood crickets hide more when others have experienced danger and continue to do so after they are gone. This suggests that social learning is possible in insects without large brains, questioning the assumption that it requires superior cognitive abilities.
Researchers Rebecca Sparks and David Abrahamson developed a formula predicting starting pitchers' top three finishes in Cy Young voting. Their analysis found that wins carry significant weight, while ERA and strikeouts have more importance than winning percentage or losses.
A randomized, placebo-controlled trial found that methylphenidate significantly improved symptoms of hyperactivity and impulsiveness in children with pervasive developmental disorders. The study included 58 participants who showed a response rate of around 76 percent to the medication.
A study found that approximately 9% of children with tree nut allergies can outgrow their condition, including those who have had previous severe reactions. Children with multiple types of tree nut allergies are unlikely to outgrow their allergy.
Researchers identify clusters of genes expressed at distinct phases of disease progression, linking chronic disease to body's repair machinery. The findings suggest stimulating or maintaining successful repair processes in heart patients could prevent atherosclerosis development.
Research finds significant regional variations in US low birth weight rates, with some areas having rates up to 3 times higher than others despite controlling for established risk factors like race and socioeconomic status. The study suggests that improvements in social and healthcare systems can lead to better neonatal outcomes.
Researchers at The University of Manchester and The University of Maryland School of Medicine have made a breakthrough in understanding what makes a substance taste sweet. They found that sugar interacts with two types of taste receptors on the tongue, while some synthetic sweeteners only interact with one receptor. This discovery has ...
A recent study found that 90% of adults with Alzheimer's disease would allow a family member to enroll them in studies with mild to medium risks. Surrogate decision-making for more invasive procedures like gene transfers and brain tissue sampling was also widely accepted, but participants were less willing to participate themselves. Th...
A study of over 300,000 medical procedures in Winnipeg found that high-income individuals were significantly more likely to receive diagnostic imaging services. The differences in access varied by procedure and patient illness level, highlighting the need for social policy interventions to address healthcare disparities.
Researchers at the University of Pennsylvania School of Medicine discovered that RNA splicing occurs in nerve-cell dendrites, which could relate to memory and learning. The discovery may also help understand cognitive dysfunction and neurodegenerative diseases.
A new study reveals a strong association between prolonged bottle-feeding and iron deficiency among Mexican-American infants, affecting up to 17% of this population. The longer children were bottle-fed, the higher their risk of iron deficiency, with 36.8% of Mexican American children still bottle-fed at 24-48 months.
Children whose mothers had placental malaria were more likely to get sick with the disease themselves. First-time mothers' infants showed a surprising lower risk of developing malaria, regardless of their mother's infection status. These findings suggest that both previous pregnancies and placental malaria impact infant susceptibility.
A novel 'Flu Chip' developed at the University of Colorado at Boulder can determine the genetic make-up of influenza strains within 11 hours, significantly faster than current methods. The technology has shown over 90% accuracy in identifying flu subtypes and could aid global surveillance and vaccine development.
Researchers found that people with Barrett's esophagus who regularly took NSAIDs like aspirin had a one-third reduced risk of esophageal adenocarcinoma. The protective effect wears off quickly, and the risk reverts back to never users after three years of discontinuing use.
Researchers found widespread claims that SSRIs restore serotonin balance, despite lack of scientific support. Consumer ads for SSRIs often claim to correct a chemical imbalance, but this is not supported by scientific evidence.
Researchers at MIT have proposed a new theory that could eliminate the obstacle of limited speed and control in artificial muscles. By applying specific light frequencies, engineers can activate devices more quickly without added energy demands or extra weight.
Rates of severe infections due to Streptococcus pneumoniae have dramatically fallen among children and adults over 65, thanks to pneumococcal vaccination of infants. The vaccine has shown spillover effects, reducing invasive infections among older adults.
A study of 3,530 elementary school students found that 22% were involved in bullying, either as a victim or bully. Psychologically distressed children are more likely to be involved in some form of bullying, and those who struggle academically are more likely to be victims and bully-victims.
Researchers identified areas of the brain where neuronal activity decreases when objects are made invisible, suggesting a relationship between conscious experience and visual perception. The findings may advance understanding of the brain's interaction with the eye and its importance in medicine, neurology, and psychology.
Weill Cornell Medical College in Qatar offers a six-year pre-medical and medical curriculum with technology-driven innovations, providing international students with an American M.D. degree. The program is designed for the region, with high academic standards and admission requirements similar to those at Cornell University.
Research shows that tobacco smoking, including water pipe smoking, increases the risk of periodontal disease by 5-fold and 3.8-fold respectively compared to non-smokers. Water pipe smoking contains similar toxic substances as cigarette smoke, despite filtration.
The chemistry job market remains challenging due to rising costs, particularly in the wake of a record-breaking hurricane season that has battered refineries in the Gulf Coast region. Despite this, median starting salaries for chemists have increased, with bachelor's level chemists earning $32,500 and Ph.D. chemists earning $65,000.
A study found a nearly doubling of age-adjusted suicide rates in rural Haywood County, NC, from 1997-2002. The researchers suggest possible exposure to hydrogen sulfide and other toxins released by nearby paper mill operations may be linked to the increased suicides.
Research found a significant association between a COMT gene variant and antisocial behavior in children with ADHD or hyperkinetic disorder. Low birth weight was also associated with antisocial behavior, highlighting the importance of prenatal risk factors.
A national study finds that adolescents exposed to movie smoking are more likely to try smoking, with the risk increasing 2.6 times for those with high exposure. The study suggests limiting exposure to young teens and encourages the movie industry to reduce depictions of smoking.
The University of Manchester will develop new composite technologies and materials in partnership with the University of Washington, focusing on future 'greener' aircraft design and testing safety levels of composite materials. The project aims to unlock the potential of composite materials for the aerospace industry.
A study of 1,775 patients found that periodontal disease was the leading cause of tooth loss in individuals over 35. The most common medical history findings were diabetes mellitus and hypertension, with men being more likely to experience tooth loss due to periodontal reasons.
End-stage renal disease (ESRD) has increased in Canada and worldwide since 1980, with 25,000 Canadians receiving life-sustaining treatment. Despite its benefits, there is a marked regional disparity in transplant rates, highlighting the need for tailored guidelines on eligibility across various criteria.
A recent study at Cold Spring Harbor Laboratory found that certain viral infections may cause cancer by fusing cells, leading to aneuploidy and potentially tumor formation. The researchers discovered that specific gene mutations in human cells can make them more susceptible to this process.
A USGS study found that winter/spring high river flows in northern New England came significantly earlier during the 20th century, with most changes occurring since the 1960s. The total winter days of ice-affected flow decreased by 20 days from 1936 to 2000 for the average of the 9 longest-record rivers.
Researchers discovered that Lovastatin can reverse learning and attention deficits in adult Nf1 mutant mice, suggesting a potential treatment for the disorder. The findings also show that cognitive deficits associated with NF1 are not irreversible developmental deficits.
The ATTACK project aims to engineer T-cells to target and destroy cancer tumors. By modifying the immune system's natural defense mechanisms, researchers hope to develop a selective treatment method that spares healthy cells.
Researchers found that FOP is misdiagnosed 87% of the time, taking an average of four years to be accurately diagnosed. Inaccurate diagnoses led to painful biopsies and incorrect treatments, often worsening the condition and resulting in permanent loss of mobility.
Researchers explore role of worm parasites in immune system regulation, discovering potential cure for tropical diseases like filariasis and schistosomiasis. The study also holds promise for treating autoimmune conditions such as diabetes, asthma, and hay fever.
Research reveals that households with unrelated adults, particularly male boyfriends, pose a significant risk to young children. The study found that 21% of children who died from inflicted injuries lived in homes with an unrelated adult, compared to 1% of controls.
A new method to rank scientific output has been proposed by a UCSD physicist, using the h-index to estimate a scientist's cumulative research contributions. The h-index is derived from citation counts and provides a single number that can be used to compare relative ranks within a discipline.
A recent study found that anxiety disorders more than doubled the risk of suicidal thoughts and tripled the risk of suicide attempts in individuals with mood disorders. The presence of any anxiety disorder in combination with a mood disorder was also associated with a higher likelihood of suicide attempts.
A study by researchers at the University of Chicago found that activating specific cells in the brain stem allows animals to suppress pain while performing essential tasks. This mechanism, known as
Researchers at Yale have identified a new cellular structure, Centrin2, involved in duplicating the Golgi apparatus as cells prepare to divide. This process is crucial for distributing newly-made proteins to different membranes in the cell.
Researchers found that direct tsunami damage was mainly restricted to unconsolidated coral substrates, while chronic human misuse had a greater impact on reefs. Healthy reefs did not reduce tsunami-induced land damage, contrary to previous assumptions.
A study of 229 individuals at heightened risk for Alzheimer's disease found that more than 90% supported allowing family consent for research participation in low- to moderate-risk studies. The majority also accepted higher-risk studies with caution, highlighting the importance of balancing individual concerns with societal needs.
Researchers found that household-related factors account for a similar level of variation in susceptibility to malaria as host genetic factors. Children living in high-risk households had twice as many infections per year as those in low-risk households.
Researchers have identified three newly recognized bacteria highly specific to bacterial vaginosis, a condition affecting up to 10% of pregnant women. The study aims to understand why lesbians and bisexual women are more likely to experience BV and develop strategies to prevent its recurrence.
Researchers discovered new histone modifications in mice with a lupus-like condition and found that HDAC inhibitors can reverse them, potentially treating lupus symptoms. The study aims to unravel the mysteries of lupus by exploring epigenetic changes, including histone modifications.
Researchers found that patients with partial small-bowel obstruction who received oral therapy had a higher success rate of treatment without surgery (91% vs. 76%) and shorter hospital stays compared to those receiving standard care alone. The study suggests a new management strategy for similar patients, leading to reduced surgical in...