Researchers at MGH Cancer Center found that specific gene mutations in the EGFR gene predict responsiveness to Iressa, a targeted therapy that causes tumors to shrink significantly. The discovery will help determine which patients benefit from Iressa and potentially lead to new targeted therapies.
A recent study by Dr. Edward Scott and colleagues found that donor cells containing a Y chromosome were present in the brains of three women up to 6 years after bone marrow transplantation. This suggests that bone marrow could be used as a therapeutic source of readily harvestable cells for nerve cell regeneration.
King Chung's research shows that combining hearing aid technologies with cochlear implants reduces background noise, enhances speech understanding, and improves sound quality. Cochlear implant users prefer conditions with advanced hearing aid preprocessing.
Researchers use a NASA WB-57 research jet to examine icy cirrus clouds, aiming to understand their warming and cooling effects on Earth's climate. The Middle Latitude Cirrus Experiment gathers detailed information to improve computer simulations of future climate change.
HIV-infected women are 3.9 times more likely to have HPV infection at the outset of the study, and smoking significantly increases this risk. Smoking and HIV infection may each alter the natural history of HPV infection to heighten tumor risk.
Researchers have discovered a molecule called ppGpp that plays a crucial role in regulating bacterial gene expression and survival. When amino acid levels are low, ppGpp accumulates and shuts down protein synthesis, allowing the cell to go dormant until conditions improve.
Researchers identified a 23-gene signature that can predict disease recurrence in Dukes' B colon cancer patients with high accuracy. The study's findings have significant implications for personalized therapy decisions and could lead to improved patient outcomes.
Researchers have discovered a way to convert adult bone marrow cells into brain stem cells, which could potentially restore functioning in individuals with Alzheimer's disease. The process eliminates ethical and logistical issues associated with fetal tissue use and allows for quick conversion within a few weeks.
Researchers have successfully performed heart biopsies using arm catheterization, a promising new option for patients. The procedure showed no major complications and allowed patients to be discharged quickly.
Researchers studied 87 women with epilepsy and found that nearly 40% experience catamential patterns where seizures fluctuate with menstrual cycles. Progesterone lozenges may help reduce seizure frequency and severity during monthly hormonal changes.
Researchers developed a novel method to pinpoint rapidly evolving genes in pathogens, revealing potential drug targets for tuberculosis and malaria. The technique analyzes genome sequences to identify genes under selective pressure, allowing for the discovery of previously unknown genes.
Researchers linked mid-life heart disease risk factors to increased dementia risk later in life. The study of over 11,000 participants found that those with four key risk factors had nearly three times the chance of developing dementia compared to those with none. Presence of each risk factor added a 20-40% greater risk for developing ...
The report evaluates nine effective programs and eleven that warrant further research, highlighting the importance of defined outcomes, sustained commitment, personalization, challenging content, engaged adults, and educators' roles. These design principles aim to increase participation in STEM fields among underrepresented groups.
A recent study found that height loss of between 2-3 inches increases the risk of hip osteoporosis by nearly fourfold. Researchers suggest a simple evaluation of height can help physicians decide whether patients should undergo a bone density scan to check for osteoporosis.
A study published in Cell found that genetic defects in Nkx2-5 lead to progressive heart failure by degrading the electrical wiring of the heart, particularly the atrioventricular node. The researchers also identified a growth-factor gene called BMP-10 as a key contributor to this process.
A South African study found that women experiencing gender-based violence are more likely to contract HIV due to abusive partners imposing risky sexual practices. The research highlights the need for effective interventions to address social constructions of masculinity and intimate partner violence in relation to HIV risk.
Research found a direct correlation between viral levels in blood and semen, with acutely infected individuals being hyper-infectious before symptoms occur. Transmission rates during heterosexual sex are likely to be much higher than previously thought during this period.
A team of archaeologists has unearthed conclusive evidence of early humans' control over fire in Eurasia, dating back to the Acheulian culture. The discovery, made at the Benot Ya'aqov site in Israel, reveals that ancient humans used fire for cooking and warmth, significantly impacting their diet and survival.
Researchers at PTC Therapeutics have discovered a new biochemical pathway that controls cell growth modulation. This finding has significant implications for the development of therapeutics targeting cancer cells, which rely on deregulated translation to grow uncontrollably.
The article highlights the need for investment in human resources to respond to global health crises, particularly in sub-Saharan Africa. Human resources for health are essential for achieving better health outcomes, and donors can support these developments by acknowledging their importance.
Scientists at Georgia Tech Research Institute are developing a non-destructive radar system to detect mold behind walls, which can emit harmful compounds and cause serious health issues. The goal is to create a handheld prototype that can map mold and help contractors pinpoint damaged areas.
Experts question whether Europe can achieve ambitious environmental goals for children due to limited action taken. Prioritizing specific areas with clear disease causation and high burden is recommended.
Researchers at University of Pittsburgh successfully used suspension culture systems to promote follicular growth in rats and mice, showing promise for preserving ovarian fertility after cancer treatment. The study's findings suggest a promising step towards conserving fertility for cancer patients.
Researchers found a high correlation between EGFR mutations and sensitivity to gefitinib therapy in lung cancer patients, particularly in women and non-smokers. The study also revealed significant differences in response rates between Japanese and American patients, suggesting genetic variation plays a crucial role in drug effectiveness.
A study found that black men with prostate cancer are more likely to die from the disease due to delayed or inadequate care, particularly those without other diagnosed illnesses. The researchers suggest that cultural and social factors contribute to this disparity.
Researchers at Emory University Health Sciences Center have identified a genetic sequence for the anti-bacterial protein Escapin found in sea slugs. The protein prevents bacteria from growing on surfaces, making it a potential solution for preventing biofilm formation and associated problems.
Researchers at SLU School of Medicine discovered a new drug, Cinacalcet, that successfully treated hyperparathyroidism, a common side effect of kidney disease. The treatment works by fooling the parathyroid glands into thinking calcium levels are higher than they actually are.
A recent study published in the American Journal of Public Health found that periodontitis is more prevalent among older blacks than whites or Mexican-Americans, regardless of income or education levels. The researchers suggest historical factors such as unequal opportunities contribute to this disparity.
Researchers pinpoint CO2 sources, geological and terrestrial sinks, and transport requirements in Virginia. The project aims to reduce greenhouse gases and mitigate global warming by developing technologies for removing carbon from the atmosphere.
Researchers create 'quantum dots' in gallium arsenide to harness electrons' spin for logic gates and potential quantum computing applications. The tiny dots could enable faster, smaller computer chips with enhanced data security.
Researchers at Harvard Medical School have discovered a new target for human papillomaviruses, which could lead to specific antiviral drugs for treating precancerous cervical lesions. By blocking the protein BRD4, they prevented infected mouse cells from becoming cancerous.
Researchers found that patients with certain EGFR gene mutations in non-small cell lung cancer (NSCLC) respond well to treatment with Iressa, a kinase blocker. The study identifies the potential for screening patients for these mutations to predict treatment response and benefits ethnic populations differently.
Regime shifts occur when changes in ocean conditions, such as warming, affect plankton production and propagate up the food chain. Overfishing can also force a regime shift, changing population dynamics of an entire ecosystem.
A study of 304 young adult users found that friends were the most important source of information about MDMA, followed by websites like DanceSafe.org. Younger and more educated users relied on the internet for information, while parents, mainstream media, and radio were considered less accurate sources.