Researchers at Queen's University have identified genes affected by methotrexate (MTX), a cancer-fighting drug that causes birth defects in children. The study uses fruit flies as a model system to understand the effects of MTX on mammalian birth defects.
Vakalis receives award for his contributions to developing and implementing educational materials for Computational Engineering and Sciences. He aims to make students aware of the beauty and practical use of computational science, highlighting its intersection with mathematics and science.
A recent study found that tiny amounts of virus-laden blood leak from placentas to babies during labor, leading to a significant risk of HIV transmission. Researchers suggest that pregnant women start taking anti-retroviral drugs before going into labor as a potential solution.
Researchers found that people with mildly depressed symptoms are more perceptive of their social environment than those without. They can identify subtle cues, such as eye expressions, to gauge others' emotions and mental states.
Brown University researchers have created a directly pumped silicon laser by altering its atomic structure using nanoscale drilling. The achievement opens up new possibilities for the electronics and communications industries, enabling faster and more powerful computers or fiber optic networks.
The study finds that unit bias affects how people perceive and consume food, with smaller portions being just as satisfying. The researchers believe this bias is culturally derived and plays a significant role in the French eating less than Americans.
Researchers found a link between placental microtransfusions and HIV transmission in mothers, particularly during vaginal delivery. The study suggests that better understanding of microtransfusions could lead to more effective treatments for preventing mother-to-child transmission of HIV.
Research at the University of Wisconsin-Madison found that children who experienced early neglect have lower levels of vasopressin, a hormone essential for recognizing familiar individuals. This hormonal imbalance may contribute to difficulties in forming secure relationships later in life.
A 12-week study found that Viagra significantly improved erectile function, self-esteem, and quality of life for men with ED and LUTS associated with benign prostatic hyperplasia (BPH). Men experienced a decrease in both irritative and obstructive BPH symptoms.
A four-year study will investigate the effectiveness of two behavioral interventions for adults with Tourette syndrome, with a focus on tic severity. The study complements an existing research program that explores similar treatments in children, funded by NIH.
Researchers found that up to 70 percent of the water inside rapidly growing bacterial cells was generated by metabolism. This challenge to prevailing wisdom may lead to new methods for detecting fast-growing cancer cells or studying metabolic changes in obese individuals. The study's findings use stable isotope ratio mass spectrometry ...
A study found a significant association between gingivitis and preterm birth, suggesting that periodontal disease is an independent risk factor for preterm birth. Periodontal therapy reduced preterm birth rates by 68% in pregnant women with pregnancy-associated gingivitis.
Research by University of Alberta's Dr. Michael Haan found that immigrants' housing rates dropped in the last few years, while those born in the country increased their homeownership rates. The decline may be linked to diminished labour market fortunes, discrimination, and decreasing median wealth among immigrant groups.
Patients with severe chronic illnesses in British Columbia experienced more physician visits, fewer prescriptions filled, and increased hospital admissions during periods of cost-sharing. The study's findings suggest that the policy may be detrimental to patients' health.
Researchers at Brown University have discovered that reducing p53 protein activity in neurons can increase lifespan in fruit flies by 58%, a finding that suggests a potential mechanism for slowing aging through the caloric restriction pathway.
A USC study reveals that high sugar intake during childhood may play a key role in the development of diabetes in Latino children. The research found that children who consumed more sugary drinks had signs of decreased beta cell function, implying they were heading toward type 2 diabetes.
Researchers found highest increase in Parkinson's risk among highly educated individuals (9+ years of education), while physicians had the greatest increased risk compared to the general population. The study suggests that physical activity may protect against Parkinson's disease, but further studies are needed to confirm these findings.
A study found that positive parenting programs, such as Group Triple P, are highly effective in reducing behavior problems and improving family relationships. The program reduced clinically significant behavior problems by 36% among four-year-old children.
A Saint Louis University study challenges the notion that teenage mothers face a future of failure, finding that early motherhood can have positive effects on their lives. The research highlights the crucial role nurses play in supporting young families and providing resources for education, healthcare, and personal growth.
A study of 24 patients found that MRI with an endorectal coil at 1.5T outperforms conventional body coils in staging prostate cancer. The results suggest a need for advances in coil technology to improve imaging at higher field strengths.
Researchers discovered that disrupting p53 activity in neurons extends lifespan and increases stress resistance in adult fruit flies. The study suggests that targeting p53 activity in different cell types may offer a way to prevent tumors while preserving healthy aging.
Innovative manufacturers in Georgia report higher returns on sales, pay better wages, and are less likely to lose work to outsourcing. Nearly half of companies have introduced new or improved products between 2002 and 2004, with those doing so accounting for nearly 20% of sales.
A critical television documentary about a commonly prescribed birth control pill, Diane-35, led to a significant drop in its use. The study found that over 45% of women who received the medication had no recorded history of acne.
A randomized controlled trial has validated a brief version of the Hamilton Depression Scale (HAMD-7) for measuring depression severity in primary care settings. The findings suggest that this shorter scale is accurate and can be used by physicians in clinical practice.
A study published in Archives of Otolaryngology - Head and Neck Surgery found that toddlers with sleep apnea are more likely to experience respiratory problems when sleeping on their backs. The research contradicts previous findings, suggesting that body position may play a role in the severity of OSAS in young children.
Two studies found that CO2 senses are crucial for fungi C. albicans and C. neoformans to adapt to different environments. The enzymes adenylyl cyclases mediate CO2-dependent filamentation and capsule biosynthesis in these pathogens.
Researchers found that intuitive eaters had a significantly lower body mass index and higher levels of high-density lipoproteins compared to restrictive dieters. Intuitive eating was also correlated with a decreased risk of cardiovascular disease, suggesting a healthier relationship with food and weight management.
David Eidelberg receives the prestigious Fred Springer Award for his work on mapping brain pathways and developing new diagnostic techniques. The award recognizes his pioneering efforts in viewing the brain at work, early diagnosis, and predicting treatment responses.
Research by Dr. Mark Boyce found that removing one egg from a whooping crane nest increases the probability of nest success, leading to an increase in population numbers and establishment of new populations. The program has been successful in enhancing the conservation of the species, with over 200 birds currently thriving.
A retrospective chart review of 60 children aged three and younger found that supine sleep increases respiratory disturbance index (RDI) and obstructive sleep apnea syndrome (OSAS) episodes. The study highlights the importance of considering body position in diagnosing and managing sleep disorders in pediatric patients.
A new guidance system automates electrode placement in DBS surgery, reducing operating times by up to 80% and improving patient outcomes. The system uses a 3D brain atlas to predict target locations, allowing neurosurgeons to hit the mark on their first try.
Peroneal nerve injuries are common in traumatic knee dislocations and require precise knowledge for surgical intervention. Sonography accurately identifies nerve injuries and their extent, enabling optimal therapy planning.
A Yale University study found that methylphenidate is an effective medication for children with autism and increased hyperactivity. However, the response rate was lower than expected compared to ADHD without co-occurring PDD.
Researchers found that individuals with autism and related disorders have difficulties distinguishing facial expressions from emotional states. The study suggests that these problems may be related to the processing of emotion rather than face perception.
The CD4 Initiative aims to create easy-to-use devices for measuring CD4+ T-lymphocytes in HIV+ patients, addressing the high cost and complexity of current technologies. The project will bring together industry know-how and scientific creativity to develop simple, rapid, and affordable tests.
A nationwide survey found that 54% of NSAID users were unaware of potential side effects, and 18% had previously experienced complications. The study emphasizes the need for patient and physician education to prevent unnecessary complications from painkiller misuse.
The study, titled 'Epidemiology of Disability and Recovery in Older Persons,' investigates the onset and resolution of disability in individuals aged 70 and above. Gill's findings suggest that disability can be reversible and often recurrent, highlighting the importance of regular exercise and pain management strategies.
The American Geosciences Institute announced the winners of its Earth Science Week 2005 contests. James Pugh won the Visual Art Contest with his drawing 'Volcanologists: It's a Hot Job,' while Robert Kendle took home the Essay Contest prize for his essay on paleontology and geoscientist aspirations.
A retrospective survey of 2,353 patients with acute cholecystitis found that laparoscopic procedure use varied widely between hospitals and years. Younger female patients in selected hospitals were more likely to receive LC for acute cholecystitis.
Researchers highlight difficulties in using substitute species, citing the need for direct examination of target species. The study concludes that surrogate species are not a viable solution to conserve endangered species.
Researchers found limited changes in brain gene activity in tame silver foxes compared to non-domesticated farm foxes. Tame foxes exhibited dramatic behavioral and physiological changes, but these were associated with only minor genetic alterations.
Hospital noise levels have grown steadily over the past five decades, exceeding World Health Organization guidelines, with human speech frequency range contributing to communication difficulties. Researchers at Johns Hopkins University found modest reductions by introducing hands-free personal communicators in patient areas.
Researchers at Penn visualize psychological stress in human brain for first time using fMRI technique, linking it to negative emotions and cognitive decline. The study provides a neuro-imaging marker of psychological stress, paving the way for improved strategies to prevent or correct long-term health consequences.
A recent study published in European Journal of Neuroscience reveals that prostaglandin E2 (PGE2) can provide protection against brain cell death by stimulating receptors EP2 and EP4. This stimulation results in increased cyclic-AMP (cAMP) levels, which reduces the toxic effects of amyloid-beta 1-42, a hallmark of Alzheimer's disease.
A large cohort study found that octogenarians undergoing open heart surgery have a 72% higher risk of death, longer hospital stays, and increased neurologic complications compared to younger patients. Age is an independent risk factor for morbidity and mortality after controlling for other variables.