A study of 3,288 teenage girls found that those with multiple sexual partners were more likely to have unprotected sex and experience negative health consequences. Girls tend to limit their partners as they progress through high school, but education before ninth grade may help reduce these risks.
Graduate student Sommer Gentry investigates haptic communication in swing dancing and its potential applications in robotic surgery, human-robot collaboration, and urban warfare. Her research has shown that pure haptic communication is sufficient for humans and robots to move in coordination.
Rising star in chemistry, Jianpeng Ma, has made significant breakthroughs in understanding the structure-function relationship of biological molecules. His innovative approach uses computer simulation to explore this connection, paving the way for furthering our fundamental understanding of chemistry.
Researchers have created a strain of mouse whose muscle cells continuously produce mIGF-1, leading to significant muscle regeneration and tissue repair. This breakthrough sheds light on how stem cells specialize and integrate into damaged tissues.
Purdue University researchers have engineered plants to produce a non-toxic form of selenium called methylselenocysteine, which has shown promise in reducing cancer risk in animal models. The plants can also accumulate high levels of selenium, potentially providing a natural source for nutritional supplements and environmental cleanup.
A recent study found that 25% of teenage girls experience major depression, highlighting the need for earlier identification and treatment. Decreases in social support and increases in smoking were linked to increased depressive symptoms.
A study found that high levels of CRP in blood are associated with an increased risk of colon cancer, particularly in individuals who do not smoke. Elevated CRP concentrations were also found in people with rectal cancer, but the association was weaker.
Scientists found a significant link between clouds and pollution transport in the Asian-Pacific region. Clouds mask pollutants from spacecraft sensors, leading to underestimated pollution levels.
A study published in The Journal of the American Medical Association found that people with higher CRP levels were more likely to develop colorectal cancers over an 11-year period. Median CRP levels were higher among those who developed colon cancer, and inflammation was linked to increased risk without being mediated by diabetes.
A study found that a computer-aided detection system did not change mammography recall rates or breast cancer detection rates, suggesting it may not be beneficial in academic practices. The results were similar even when focusing on the seven highest-volume radiologists at the center.
A randomized trial found that high doses of folic acid, vitamin B6, and vitamin B12 did not lower the risk of recurrent stroke. However, moderate reduction in blood amino acid levels was associated with a lower risk of stroke, heart disease, and death.
A study found that nursing home residents who wander, exhibit verbally abusive behavior, or have cognitive impairment are more likely to provoke injuries in others. Male residents and those living in Alzheimer's units were also at higher risk. The authors suggest focusing on the behavior of injured persons to prevent incidents.
Researchers discuss the need for additional research and standardization in partial-breast irradiation and accelerated partial-breast irradiation. A new study also finds that preoperative chemoradiation may benefit some patients with rectal cancer, while a diet high in glycemic load is linked to an increased risk of colorectal cancer.
A recent study found that high-dose vitamin therapy had no effect on preventing recurrent strokes and heart attacks. The VISP study involved 3,680 adults who received either a low or high dose of folic acid, B6, and B12 vitamins.
A new study by Cornell University's Liam O'Neill found that distance from a hospital significantly impacts access to medical facilities and outcome for heart attack victims. The study estimates that patients living far from hospitals face a higher risk of death from heart attacks, with approximately 60% expiring before reaching the hos...
A $4 million grant aims to conserve Papua New Guinea's rainforest by discovering medicinal plants. The project seeks compounds active against tuberculosis, HIV, malaria, and cancer, with the goal of providing economic development and biodiversity conservation.
A recent study found a significant link between increased levels of C-reactive protein and colon cancer risk. However, the study's findings do not suggest that C-reactive protein is a definitive marker for colon cancer risk.
Researchers found that brain waves change with each breath, suggesting a new understanding of how sleep apnea affects the brain. The study's novel algorithm detected changes in brain wave activity linked to breathing cycles, promising potential for predicting daytime sleepiness and treatment outcomes.
A recent study found that disabled children with psychosocial problems are less likely to receive mental healthcare, particularly younger and black children. In contrast, joint care coordination between a health professional and family member improved access to outpatient services.
Astronomers have discovered a possible link between a comet impact in the 6th century and the 'Dark Ages.' The comet's debris caused a prolonged cold period, similar to a nuclear winter, resulting in crop failures and widespread starvation. A small comet size was needed to cause such dramatic effects.
Researchers have discovered a new deep-sea jelly, Stellamedusa ventana, which uses its bell and oral arms to capture prey. The jelly's unique feeding strategy is unlike other species, as it prefers larger prey, with some individuals capturing creatures up to 5 cm across.
Researchers detected ClOOCl in the polar stratosphere, triggering ozone destruction through three-step process. The discovery was made during a joint US-European science mission using NASA's ER-2 aircraft.
Children with cerebral palsy (CP) exhibit difficulty controlling muscles due to brain damage, rendering everyday tasks challenging. An innovative therapy approach has yielded significant benefits in enhancing motor function and overall quality of life for treated children.
A new theory by Steven Frank proposes that cancer progression speeds up with age, leading to increased incidence in older adults. As people age, fewer stages remain before cancer develops, resulting in higher cancer rates.
Scientists have successfully grafted primate testes into mice, resulting in the rapid production of fertile sperm. This breakthrough could preserve genetic material from endangered nonhuman primates and offer reproductive options to men rendered infertile by cancer treatments.
Researchers have found that bacterial DNA from probiotics can reduce inflammation in mice with experimental colitis. The study discovered that purified probiotic DNA activates a specific element within the innate immune system, which helps to slow down inflammation.
The decline in hormone therapy (HT) use was attributed to the release of data from two long-term studies showing that HT did not protect against heart disease and may even increase the risk. The study found that women who took HT had a higher risk for heart disease and breast cancer compared to those who did not take HT.
UT Southwestern researchers are studying the effect of supervised exercise on individuals taking SSRIs, with preliminary results indicating positive responses from patients. The goal is to determine if exercise can augment SSRI treatment and reduce all symptoms of depression.
Researchers at University of Illinois at Urbana-Champaign found that combining RU 486 with relaxin could hasten labor and promote healthy delivery in rats. The study suggests that this two-drug approach may also shorten painful labor and reduce Caesarean sections in humans.
A recent survey found that most Americans remain confident in the safety of their beef supply following a confirmed case of mad cow disease in Washington State. The study suggests that consumer confidence has been boosted by government actions and trust in food regulators, but some have expressed concerns about the risk of transmission.
A UCSD study found that inactivated probiotics can effectively alleviate colitis in mice, suggesting a new approach to IBD treatment. The study also identified the innate immune system as a key player in the beneficial effects of probiotics.
Researchers created an experimental model that limited radiation to the site of cancer in mice, demonstrating a localized single radiation dose decreases painful behavior and increases limb use. Treated mice had significantly less bone destruction and tumor burden, leading to greater pain relief.
The study found that nonspecific clinical diagnosis, unreliable testing methods, and communication issues hindered effective diagnosis of pertussis during the outbreak. Despite these challenges, the epidemic was successfully managed without deaths reported.
A recent study found that 72% of adverse events (AEs) among patients after discharge are related to medications. Female sex, type 2 diabetes mellitus, and pneumonia were identified as independent predictors for AEs.
A new study published in the Canadian Medical Association Journal found that infants born over the weekend had a slightly elevated risk of stillbirth and neonatal death compared to those born on weekdays. The researchers suggested that selective timing of low-risk elective deliveries may explain this difference.
A clinical trial was stopped early after showing an unacceptably high risk of breast cancer recurrence in women who received hormone therapy. The study found that even short-term use of HRT poses a significant risk, prompting the need for alternative safe and effective strategies for managing menopausal symptoms in these women.
Researchers developed a system using a tri-axial accelerometer and fractal analysis to study Parkinson's patients' walking patterns. The study reveals the complexity of body motion in both healthy elderly subjects and Parkinson's disease patients, with the latter exhibiting higher fractal measures indicating more complex symptoms.
The Nanoruler can pattern gratings with lines and spaces separated by a few hundred nanometers across large surfaces. This precision enables the analysis of light and decoding cosmic bar codes for space telescopes like NASA's Chandra X-ray Observatory.
A study of 278 men aged 45+ without depression found that low testosterone levels were associated with a higher incidence of diagnosed depression. Men with hypogonadism were 4.2 times more likely to be diagnosed with depression than those with normal testosterone levels.
A study of 177 young boys found that one in five carried a concealed gun between ages 12 and 17, with prevalence increasing with age. Conduct disorder was positively associated with gun carrying, even when controlling for other factors.
A study of over 27,000 nurses found that aspirin use was associated with a lower risk of developing adenomas, which can develop into cancer. The findings suggest that higher doses may pose greater risks of side effects such as bleeding.
Researchers at Purdue University have identified a radical hydrocarbon molecule with unique electron behavior, which could be used as building blocks for molecular magnets. The discovery has the potential to create non-metallic magnets that are lighter and cheaper than metal ones.
The cerulean warbler's population decline is attributed to habitat loss and fragmentation in both breeding and winter ranges. An international collaboration, the Cerulean Warbler Technical Group, aims to develop a proactive conservation strategy through sound science and partnerships.
A study by Singapore investigators found that SARS infection occurred in healthcare workers with normal chest X-rays, even those not directly exposed to patients. The researchers detected SARS antibodies in 8 out of 112 exposed workers, with symptoms ranging from mild to severe.
Researchers found that transit-amplifying cells and early differentiating cells can form a fully stratified epidermis under the right conditions. Laminin-10/11 exposure enhances their regenerative capacity, opening new possibilities for cellular therapies.
Scientists at Dana-Farber Cancer Institute have identified a human monoclonal antibody that blocks SARS virus infection by neutralizing its entry into cultured cells. The antibody, isolated from a collection of 27 billion antibodies, shows promise in animal tests and could be developed for clinical trials to prevent and treat the disease.
A novel assay reveals that T cells in patients with type 1 diabetes produce pro-inflammatory cytokines, driving an autoaggressive immune response. In contrast, healthy individuals' T cells produce regulatory cytokines, maintaining tolerance. The findings offer new approaches to immune modulation and tolerance.
The editorial cites evidence from studies including the Nurses' Health Study and Cancer Prevention Study II, which found a correlation between adequate sleep duration and increased lifespan. These findings support the notion that getting enough sleep is essential for overall health and well-being.
Researchers have successfully developed a cancer vaccine using low-affinity epitopes that shows high vaccination efficiency in antitumor immunotherapy. The study, published in JCI Journals, offers promising results for the treatment of various types of cancer.
The HABITS trial was terminated after an unacceptably high risk of recurrent breast cancer was found in women with previous breast cancer who received hormone therapy, compared to those without hormones. Women on active treatment have been advised to discontinue use.
A recent report shows a significant decline in stomach cancer rates across Europe, with falls seen in younger and middle-aged populations. The downward trend is attributed to improved diet, better food preservation, reduced Helicobacter pylori infection, and lower smoking rates.
Researchers developed a novel assay to examine T cell responses to autoantigens in islet cells, revealing distinct pathways of T cell differentiation and maturation in normal individuals versus patients with T1DM. These findings suggest proinflammatory polarization in diabetes but regulatory phenotypes in health.
Recent discoveries, including a photo and skin samples, have reignited hopes of finding the Miss Waldron's red colobus monkey in its remote southeastern corner of Ivory Coast. The discovery has sparked concerns about potential extinctions of other high-canopy forest-dwelling animals.
A recent study by Ohio State University found that only about 40% of cohabiting couples eventually get married. The research also discovered that men with high economic prospects and similar couples were not more likely to tie the knot than others. In fact, consensus regarding marriage plans was a key predictor of whether cohabiting co...
An intervention program, lasting 7 sessions, helped reduce preschool children's TV/video watching from 11.9 to 8.8 hours/week, decreasing 33% to 18% of children watching more than 2 hours/day. The study suggests that a preschool-based intervention can lead to reductions in young children's TV viewing.
A study in four Scandinavian health care sectors found that public awareness programs significantly reduced the duration of untreated psychosis (DUP) for first-episode patients. The programs included educational campaigns and a telephone hotline number, resulting in median DUP of 5 weeks compared to 16 weeks.
A team of researchers found nearly complete genomes of two organisms in a microbial community from a hot, acidic solution, revealing clues about metabolic activity and speciation. The study sheds light on how bacteria function collectively in acid-adapted environments.
Children with optic nerve disease are up to 20 times more likely to experience excessive daytime sleepiness due to disruptions in their body's internal clock. Researchers found that the loss of a specific type of cell in the retina, which helps regulate light exposure, is directly linked to sleep disturbances.
Researchers have developed a protective coating that prevents deadly post-operative infections from Pseudomonas aeruginosa, a virulent pathogen that kills 100% of untreated mice. The coating, which works by pleasing the bacteria and preventing them from invading the host's bloodstream, has shown promising results in animal studies.
A case-control study found associations between CSCR and various systemic conditions, including alcohol, tobacco, and antibiotic use. Eye doctors are advised to discuss these risk factors with patients and take steps to eradicate them.