A study of 231 men found that only 1% of child pornography consumers went on to commit a hands-on sex offense. The researchers suggest that the motivation and recidivism rates differ between child pornography consumption and physical assault.
A study published in BMC Biology found that erythropoietin boosts brainpower in healthy young mice, improving sequential learning and memory components. The growth factor showed superior performance in associative, operant, and discriminant learning tasks.
Researchers used magnetic pulses to stimulate the dorsal premotor cortex, improving skill learning in volunteers. The study found that excitatory stimulation enhanced motor consolidation of new skills.
A study found that mental stress causes vasodilation in healthy subjects, resulting in a net increase in brain blood flow. However, individuals with high blood pressure showed no vasodilation or change in brain blood flow under similar conditions.
A study published in BMC's open access journal Trials found that 93% of RCTs published in Chinese medical journals between 1994 and 2005 were flawed, casting doubt on their reliability. Researchers investigated clinical trials on 20 common diseases and found that only 7% met recognized standards for authentic randomization.
Researchers found that inbred bumblebee colonies suffer from decreased growth rates, lower offspring production, and reduced colony survival. The presence of diploid males, produced at the expense of female workers, has a detrimental effect on colony fitness.
Researchers have discovered nine novel poison molecules in the venom of the Scorpiops jendeki scorpion, expanding knowledge of scorpion venoms. The study found ten known types of poisons with diverse modes of action, offering a rich resource for drug development.
A meta-analysis of 6,316 patients found that clinical pathways significantly reduced postoperative complications and shortened hospital stays. This led to lower hospital costs due to better-organized care, which prevents inappropriate care and its associated costs.
Researchers created a genetic linkage map for S. mansoni, a blood fluke infecting 90 million people in Africa and the New World. The map will facilitate high-resolution population genetic studies and improve understanding of transmission patterns.
Researchers found that most pairs of black-legged kittiwakes avoid inbreeding more often than chance, suggesting they can detect relatives in large populations. Inbred pairs produced fewer hatching eggs and chicks with lower survival rates.
A clinical trial of masitinib has shown it to be well-tolerated and effective in reducing the severity of active rheumatoid arthritis. The treatment was found to significantly reduce inflammation and improve symptoms, with mild to moderate side effects.
Researchers have produced video footage of a male nematode worm preparing to mate with a hermaphrodite, showcasing the complex process. The study revealed that the male uses acetylcholine to regulate tail muscles for an exploratory embrace, and then searches for the vulva before mating commences.
Researchers found breast cancer incidence fell 13.2% nationwide, with greater reductions among women in urban (-13.8%) versus rural (-7.5%) areas. The decline may be linked to HT discontinuation, which was more pronounced in rich/urban areas.
A study found that high soy intake was associated with improved lung function and a lower risk of developing chronic obstructive pulmonary disease (COPD) in smokers. Flavonoids in soy may help protect against tobacco carcinogens, but more research is needed to understand the underlying mechanism.
Researchers used MRI to compare brains of 38 people with dyslexia to a typical brain model, revealing differences in the right cerebellar declive and lentiform nucleus associated with varying language performance. These findings suggest different neuro-cognitive pathologies underlying dyslexia subtypes.
Researchers found increased mRNA levels of PN-1, a prostasin inhibitor, in colorectal tissue samples from patients with mild/moderate dysplasia and severe dysplasia before colorectal cancer. Elevated PN-1 levels coincide with the acquisition of malignant properties in colorectal tissue.
A recent study found that American over-65s scored significantly better than their English counterparts in a memory and awareness test. Higher levels of education and lower levels of depressive symptoms in the US may have contributed to this difference, while aggressive cardiovascular disease treatment in England could be a factor.
A new study found that increased growth factor activation is associated with poor prognosis and tamoxifen-insensitivity in luminal-B breast cancers. Targeting this pathway may lead to a new therapeutic strategy for these patients.
Research in Drosophila larvae reveals that 5-HT and corazonergic neurons regulate photobehavior, increasing aversion to light during foraging phase. The study provides new insights into the function of 5-HT neurons and mechanisms underlying regulation of larval response to light.
A small study found that people believe bottled water has health benefits, but are unsure of the extent. Convenience and taste were more influential factors for participants when choosing bottled water.
Researchers found that Money spiders infected with Rickettsia bacteria have reduced long-distance dispersal, suggesting an adaptive modification by the bacteria to promote transmission. Treating the spiders with antibiotics increased their ballooning frequency.
A study published in Nutrition Journal found that many parents misinterpret common baby behaviors as milk intolerance and needlessly switch formulas. The randomized study demonstrated no difference in infant tolerance of two cow milk formulas over a 60-day feeding trial.
Researchers have discovered that human fallopian tube mesenchymal stem cells can differentiate into muscle, fat, cartilage, and bone cell lines, offering a new source for regenerative medicine. The study found that these cells are abundant in fertile women's reproductive years and can be easily isolated and expanded in vitro.
A Canadian study found that living in areas with more fast-food outlets and convenience stores than supermarkets has been associated with obesity. The proximity of these unhealthy environments is a significant risk factor for weight gain.
Researchers found that an opioid peptide, DADLE, protected against experimental stroke in rats, preventing cell death and behavioral abnormalities. The study suggests a new pharmacological target for stroke therapy.
Researchers have discovered that calcium modulation affects long-term memory specifically while leaving learning and short-term memory intact. The study found that increased calcium levels during learning led to stronger responses to olfactory stimuli associated with food, indicating improved memory performance.
Research suggests that estrogens acting through their receptors affect the dopamine transporter, which may explain trends in timing of women's susceptibility to these diseases. Estrogen levels vary significantly at different life stages, and women are more likely to experience neurological disease onset or exacerbation during these times.
A novel method has been developed to analyze microRNA expression levels, enabling more accurate detection of subtle biological changes. The new approach outperforms existing methods in reducing technical variation and accurately representing input RNA fluctuations.
In Drosophila montana, males try to prolong copulation to increase their chances of fathering offspring. The researchers found that when females were prevented from dislodging the copulating male, matings lasted one-and-a-half times longer.
A study published in BMC Family Practice found that most people lack basic knowledge of human anatomy. Approximately half of the participants correctly identified the location of major organs, highlighting potential problems in doctor-patient communication and diagnosis.
Researchers found cocaine and heroin increase antipyrine transfer across human placental tissue, compromising barrier function. This may lead to harm from more toxic substances crossing the placenta and affecting fetal health.
Researchers found that young mice are resistant to proteoglycan-induced arthritis, but become susceptible with age due to immunological senescence and impaired immune regulation. This study sheds light on the complex mechanisms underlying age-related changes in arthritis susceptibility.
A study published in BMC Biology has identified 59 genetic mutations in 57 genes that impact the behavior of fruit flies. Researchers found that certain mutations increase aggression, while others make the flies more placid.
A comprehensive investigation into sea urchins' axial complex has shown that various internal organs are structurally linked. The study uses high-resolution imaging to analyze specimens from multiple orders, providing a re-evaluation of published studies spanning two centuries.
Researchers have developed a 'shock and kill' technique to target and eliminate latent HIV-1 cells in the body. By combining histone deacetylase inhibitors with oxidative stress, infected cells can be induced to produce toxic compounds leading to their death.
Researchers discovered sedatives and hypnotics are associated with a four-fold increase in suicide risk among the elderly. The study found that even after adjusting for mental disorders, sedative treatment was linked to an almost fourteen-fold increase in suicide risk.
Researchers found that mobile health clinics decrease both the incidence and economic burden of preventable diseases, saving $36 in combined emergency department costs for every $1 invested. The model also showed a net profit to the healthcare system due to reduced costs and increased value of life years saved.
Researchers have developed a simple and scalable method to finish non-structural gaps in genome assemblies using 454 sequencing. The technique enables the targeting of class III gaps that are difficult to close with traditional cloning methods, with potential applications for other genomes.
Researchers have discovered that crustaceans use resilin springs to simplify brain control of limb movements, allowing for more efficient energy storage and reduced nervous system activity. This unique mechanism enables crabs and crayfish to coordinate their limb movements at an impressive 20 times per second.
Researchers have detected vancomycin resistant enterococci (VRE) in Swedish sewage sludge, highlighting the potential for antibiotic resistance genes to spread through the food chain. The study emphasizes the need for more efficient treatment of sewage sludge to prevent the spread of antimicrobial resistance.
A nationwide study found filicide offenders have fewer previous criminal offenses and are more likely to be employed than homicidal controls, contradicting the idea that they are mentally disordered. They also exhibit emotional problems and suicidal behavior, highlighting the need for adequate support.
Research suggests that even perceiving one's neighborhood as unsafe can be hazardous for elder health, leading to mobility disability. The study found a strong correlation between perceived danger and actual violent crime rates.
Researchers have developed DNA-like compounds that effectively inhibit cells responsible for chronic autoimmune condition lupus. The compounds, known as class R inhibitory oligonucleotides (INH-ODNs), selectively reduce the activity of autoreactive B cells and dendritic cells, delaying death and reducing kidney damage in mice with lupus.
Research reveals that HGPIN carries a high predictive value for future diagnosis of prostate cancer, with a 41.8% risk identified in patients. The study recommends delaying first repeat biopsies at low PSA ranges but shorter intervals for intermediate and higher PSA ranges.
Researchers demonstrate that Affymetrix Gene platform can analyze differential splicing activity, comparable to Exon arrays, providing added value to existing data. The new statistical method, FIRMAGene, uses adjacent poorly fitting probes to calculate differential expression.
Research suggests different invasive breast cancer subtypes have distinct etiologic pathways and prognoses. Patients with specific subtypes exhibit varying demographics, lifestyle traits, and risk factors, highlighting the need for refined tumor subtyping to elucidate development patterns.
A recent study has mapped the spread of HIV-1 subtype B across Europe, revealing that popular tourist destinations like Greece, Portugal, and Spain are major sources of infection. The research found that viruses can be transmitted through travelers, highlighting the need for targeted prevention efforts beyond national borders.
A GIS-driven digital map pinpointed malaria outbreak hotspots in Madhya Pradesh, leading to a 5% reduction in cases. The system enabled timely preventive action and dynamic data updating, highlighting the effectiveness of electronic monitoring and mapping in malaria management.
A plant MinD protein has been found to rescue the oscillating cell division of E. coli by localizing to its polar regions without oscillation. This finding suggests that the conserved Min proteins between bacteria and plants have different functions.
New research on cohesin binding patterns in fission yeast reveals that features thought to differentiate cohesin behaviour between organisms collectively define its overall behaviour. This suggests that cohesin's mechanisms of action might be more similar between organisms than previously thought.