Age-Related Hearing Impairment (ARHI) affects nearly 1 in 3 people between the ages of 65 and 75, causing gradual changes in the inner ear. Recent advances in basic science may help prevent ARHI by understanding inner ear hair cell loss.
A study by the Endocrine Society suggests prenatal testosterone excess may contribute to low sperm counts and reduced fertility in males. Researchers found that exposure to high levels of testosterone during fetal development can negatively impact male reproductive health.
A study by the University of Pittsburgh Cancer Institute found that Medicare HMO costs can be a significant barrier for cancer patients participating in clinical trials. The research suggests that the payment policy under these plans may be preventing vulnerable members of society from accessing state-of-the-art care.
Research isolated a subset of pancreatic cancer cells expressing CD44 and CD24, which exhibit lower proliferative index and faster tumor growth rate. Further purification is needed to understand their biological behaviors.
Researchers analyzed data from over 5,500 cardiac arrest cases to determine the effectiveness of transporting patients to hospitals. The study found that applying the Basic Life Support Rule or Advanced Life Support Rule would have saved approximately 1,645 and 245 trips to the hospital, respectively.
A new study demonstrates that transferring human insulin genes to the gastrointestinal tract using a non-viral vector called chitosan nanoparticles can successfully treat type 1 diabetes in rats. The study found that this method is safe and efficient, without any wound or infection.
A recent study found associations between variations in ghrelin genes and increased risk of heavy alcohol consumption and obesity. The research suggests that the ghrelin system may play a role in the brain-reward systems underlying addictive behaviors, including compulsive overeating and drug dependence.
A recent survey found that trachoma affects over 15% of adults in Ayod county, Sudan, with severe consequences for public health. The SAFE strategy is being implemented to prevent the spread of infection and treat blinding trachoma.
A study published in the World Journal of Gastroenterology found that Gecko has anti-tumor effects by inducing apoptosis and down-regulating protein expression of VEGF and bFGF. This mechanism may provide a foundation for its effective constituent and offer an alternative to chemotherapy.
A case report describes a patient with stage IV diffuse large B-cell lymphoma (DLBCL) infiltrating the stomach, who responded well to chemotherapy. Endoscopic examination and biopsy confirmed the diagnosis, highlighting the importance of this diagnostic method for suspected gastric DLBCL.
A patient with bone marrow hypoplasia contracted HCV through blood transfusion, yet maintained normal liver function despite high serum ferritin levels. The study highlights the complex relationship between HCV infection and immune status, suggesting potential for extra-hepatic manifestations such as arthritis and vasculitis.
A previously asymptomatic man developed a huge peritoneal mass after spontaneous rupture of hepatocellular carcinoma. The association between the metastatic tumor and viral infection, AFP level, or age was lacking due to few reported cases.
The study found that Curcuma wenyujin essential oil exhibits antiproliferative effects in HepG2 cells by inducing apoptosis, associated with cell cycle arrest and mitochondrial membrane potential loss. The results suggest the potential value of developing ezhu as a chemotherapeutic agent for liver cancer treatment.
Researchers used simulations to determine ice VII's melting temperature in high-pressure conditions, finding a molecular solid phase below 450,000 atmospheres and a superionic solid phase above. This discovery opens up possibilities for water existing as a solid in Neptune, Uranus, and Earth's deep interiors.
Researchers at OHSU Cancer Institute have determined that the prostate moves up and down by up to 2 millimeters during the breathing cycle, affecting radiation treatment accuracy. This new information will help doctors determine suitable margins for treatment, reducing side effects and improving patient outcomes.
A new therapeutic option for human hepatocyte cancer has been identified, leveraging parvovirus H-1 oncolytic therapy. The treatment targets p53-deficient tumors and induces apoptosis, potentially overcoming resistance to genotoxic agents.
Researchers developed age-estimation software that uses facial attributes to determine a person's age, with an accuracy rate of 80% when estimating ages within 10 years
Researchers found that undetectable EBV DNA levels during treatment significantly reduced cancer recurrence risk, while detectable levels increased the risk of recurrence and metastasis. The study suggests using biomarker tests before and during treatment to guide clinical therapy.
A study of young people in seven countries finds that cultural influences outweigh factors like age and sex when it comes to drinking habits. The research highlights striking similarities in how young people drink, including socializing and enjoying alcohol in public venues.
Four patients with pre-exposed lamivudine resistance experienced rapid re-emergence of YMDD mutations and significant viral rebound after lamivudine re-treatment. Sequential administration of lamivudine is discouraged in these cases.
Research aims to identify patient populations that can benefit from corrective surgery for obstructive sleep apnea. Patients with severe symptoms, complex anatomies, and failed non-surgical treatments may be good candidates for surgery.
A study by University of Michigan psychologist Ethan Kross found that processing emotions from a distanced perspective can facilitate coping and reduce negative moods. By taking a step back and reviewing the situation from afar, individuals can rationalize their feelings and work through negative experiences over time.
A study found that black patients undergoing screening colonoscopy have a higher prevalence of colon polyps compared to white patients. Black men and women were more likely to have large polyps, with increased odds in those over 50 years old.
A new study suggests that a simple five- or three-part rule can identify which cardiac arrest victims need hospital transportation, allowing EMS crews to use scarce resources wisely. The three-part rule may be sufficient to identify 99.8 percent of those who need to be transported.
Researchers excavated 12-ton soil monoliths in Oklahoma to study warming effects on grasslands. Warming by 4 degrees Celsius suppressed plant growth and land carbon absorption for two years.
According to a new analysis, NTDs as a group may have surpassed HIV/AIDS, tuberculosis, and malaria as the most prevalent infectious diseases in Latin America and the Caribbean. The region is home to approximately 200 million people affected by NTDs, including intestinal worm infections and Chagas disease.
A study published in the World Journal of Gastroenterology found that HCV-infected patients without initial liver damage are at risk of fibrosis progression. Factors associated with this development include elevated transaminases, body mass index above 25, and time interval between biopsies.
A significant percentage of resident physicians reported that patient handoffs contributed to incidents resulting in patient harm. The study found that half the residents reported that problematic handoffs reduced their ability to provide complete and accurate information.
Researchers found that mirtazapine increased appetite and reversed weight loss, while fluoxetine suppressed food intake and promoted weight loss. These antidepressants had no effect on pancreatic tumor growth.
A meta-analysis of 22 studies found that endoscopic ultrasound (EUS) is highly accurate in staging gastric cancer, with higher sensitivity and specificity for advanced disease. EUS can help determine the most appropriate treatment approach for patients with gastric cancer, including curative or palliative therapies.
Researchers developed a novel technique for detecting tumor lymphangiogenesis in rabbits, using percutaneous hepatic injection of ultrasound contrast material. The method combines percutaneous transhepatic lymphosonography (PTL) with contrast-enhanced ultrasonographic imaging to improve diagnostic ability for liver cancer.
Researchers found that melatonin rhythm abnormalities worsen as cirrhosis progresses, and abnormal pituitary hormone patterns can predict hepatic encephalopathy development. These findings suggest that melatonin circadian rhythm abnormalities may be an early indicator of liver disease severity.
A team of researchers at M. D. Anderson Cancer Center has discovered a biomarker for bladder cancer using fluorescence in situ hybridization (FISH) tests on urine samples, identifying all 23 cancer cases and correctly characterizing six of seven controls as not having bladder cancer.
Researchers found three subgroups of glioblastomas with varying degrees of methylation, leading to improved survival times in the subgroup with mixed levels. The study highlights the importance of methylation status in determining treatment outcomes and potential biomarkers for this disease.
Researchers found that quadruple therapy is effective in treating H. pylori-related diseases, but side effects can compromise patient compliance. Modifying the regimen or educating patients about side effects can improve treatment outcomes.
The HappyWakeUp smart alarm clock uses a microphone to detect subtle changes in sleep patterns, providing an optimal wake-up time. By waking users up during their natural 'awake' period, the device helps regulate internal clocks and reduces morning stress.
A study of emergency medical services-treated cardiac arrest outcomes in 10 areas in North America found a five-fold difference in survival rates. The incidence and outcome of cardiac arrest varied significantly across geographic regions.
A new predictive measurement, called a PEPI score, can help determine the treatment of breast cancer patients. A low PEPI score indicates little risk of relapse and allows patients to safely avoid chemotherapy after surgery. Women with high PEPI scores are at high risk of having their cancer return and require aggressive therapy.
Two UCSF scientists, Yuriy Kirichok and Miguel Ramalho-Santos, received $1.5 million NIH grants to study molecular mechanisms of cell energy production and stem cell specialization. Their research aims to develop new therapies for age-related diseases and regenerative medicine.
Researchers have developed a new catalyst that directly converts cellulose into ethylene glycol, an important intermediate product for the chemical industry. The catalyst, made of tungsten carbide and nickel on a carbon support, achieves 100% conversion of cellulose with high selectivity.
Researchers detected extensive microsatellite alterations in D3S1616, D5S346, D2S123, D3S1300 and D18S58 loci in the metaplasia-dysplasia-adenocarcinoma sequence of Barrett esophagus. These findings suggest that these markers may be useful for early detection of esophageal adenocarcinoma.
Researchers at Cornell University demonstrate how GPS receivers can be fooled by fake signals, posing a risk to global positioning system technology. The study aims to inspire designers to develop methods to guard against such attacks and protect critical infrastructure.
A study published in the Archives of Internal Medicine found that physicians rarely responded empathically to patients' concerns about mortality, symptoms, or treatment options. The researchers identified 384 moments of
Researchers at the University of Michigan found that mild infections play a key role in understanding and controlling cholera outbreaks. The study suggests that individuals with mild infections lose their immunity quickly, leading to a cyclical pattern of illness and recovery.
A recent study found that aspirin increases the expression of paraoxonase 1 and apolipoprotein A1, two proteins that help remove bad cholesterol from the bloodstream. This increase can lead to reduced risk of atherosclerosis, a condition characterized by the buildup of plaque in arteries.
Researchers at Indiana University discovered that healthy endothelial cells lining blood vessels can reduce the tendency of precursor cells to develop into fat cells. This finding could lead to new treatment options for cardiovascular diseases and obesity.
A new UNC study reveals that good parenting can counteract the effect of genes in babies' responses to stress, even at early ages. The research, published in Child Development, suggests a strong interplay between environmental experiences and genetics in shaping physiological responses to stress.
Family members of ICU patients experience high rates of post-traumatic stress and complicated grief that persist over time. Symptoms of anxiety and depression in these individuals tend to diminish with time, but screening is crucial to identify those at risk.
A long-term study of Alzheimer's disease patients treated with combination therapy found significant benefits in slowing symptom progression. The results support the effectiveness of this treatment approach, which may protect brain cells from further damage.
Researchers used a computer simulator to teach surgeons-in-training how to perform craniectomy procedures on cadaveric temporal bone specimens. After two weeks of practice, the researchers found that the trainees could correctly identify pre- and post-simulation bones with high accuracy.
A newly discovered developmental brain disorder has been identified, affecting a patient's ability to orient within environments. Researchers suspect that many others may be affected, leading to social isolation and reliance on others for directions. The study aims to better understand the disorder and develop rehabilitation treatments.
IU's Polar Grid Project will deploy customized computational resources to Antarctica to enable scientists to process data more efficiently during polar field expeditions. The equipment will support an extensive research expedition expected to begin in November and running through February 2009.
A randomized clinical trial shows acupuncture reduces hot flashes and vasomotor symptoms in breast cancer patients, providing additional benefits like increased energy and well-being. The treatment has no side effects compared to commonly used drugs.
A new study found that half of FDA-approved drug trials remained unpublished five years after approval. The most important trials determining efficacy were more likely to be published. This selective reporting bias may lead to an inappropriately favorable record of a drug's true risk-benefit profile.
Patients who underwent both stereotactic radiosurgery and whole brain radiation experienced a 49% decline in learning and memory functioning, compared to 23% for those who received radiosurgery alone. Neurocognitive function was measured by recall of a list of 12 words after three attempts.
Researchers at Rice University have developed a purification method that filters out impurities from gold nanorods, resulting in solutions that are more than 99% pure. The discovery has significant implications for the emerging U.S. nanotechnology industry.
A new study led by Georgetown University Medical Center researchers finds that sinusitis can cause severe bodily pain, often misdiagnosed as other conditions. Endoscopic sinus surgery has been shown to provide significant pain relief for these patients.
Researchers at MIT have developed a sensor system that harnesses electricity from trees to predict and prevent forest fires. The system, which uses off-the-shelf batteries slowly recharged by tree power, can transmit temperature and humidity data wirelessly, enabling early alerts and improved fire prediction models.
Scientists have developed a new imaging technique that enables the identification of proteins in cells by analyzing their energy flow. This technique, known as coherent two-dimensional infrared spectroscopy (2DIR), has been successfully tested in laboratory experiments and holds promise for improving protein analysis and discovery.
A short one-week course of radiation before surgery significantly reduces rectal cancer recurrence risk by 76% compared to post-operative treatment. However, this approach also causes impairment in sexual and bowel functions, affecting the quality of life for patients.