Researchers found that newly generated olfactory neurons in the adult brain can specialize in detecting previously unencountered odors and respond strongly to those smells. This suggests a unique role for these new cells in learning and memory functions, which may be important for repairing diseased brain tissue.
A study of Buddhist Insight meditation practitioners found thicker regions in the brain involved in mindfulness activities. The results suggest that long-term meditation practice may slow down age-related brain thinning and improve cognitive functions.
A recent MGH study found that nearly 30% of stroke patients judged 'too good to treat' due to mild symptoms actually died or required rehabilitation. The lack of tPA treatment in these patients raised the risk of death and disability, highlighting the need for more cautious decision-making.
A two-year study by Massachusetts General Hospital found that extended-release stimulant medications continue to be effective in controlling ADHD symptoms with minimal tolerance. The study involved over 400 children and showed no clinically significant effects on growth, weight, or cardiovascular health.
Massachusetts General Hospital has been designated as a Specialized Center for Cell-Based Therapy for Heart, Lung and Blood Diseases. The center aims to develop new ways of regenerating or repairing damaged tissues using stem cell biology and tissue engineering.
A new protocol has been developed to identify women with high-risk family histories of breast or ovarian cancer, allowing for more accurate data collection and analysis. The study found that 20.6% of participants had elevated risk levels, with higher rates among those with Ashkenazi Jewish ancestry.
A recent study found that many resident physicians feel unprepared to provide cross-cultural care, despite recognizing its importance. The survey of over 2,000 residents revealed a lack of training in handling specific cultural situations and limited opportunities for mentorship and evaluation.
A recent study confirms that letrozole treatment can improve the survival of women with node-positive disease and reduce metastasis risk. The study also found a 39% reduction in the risk of metastasis among participants receiving letrozole.
Researchers analyzed the expression levels of genes in circulating white blood cells after injection with bacterial endotoxin, identifying novel pathways and associations with inflammatory processes. The findings aim to improve trauma treatment by tailoring treatments to patients' individual needs.
A study found that long-term aspirin use lowers the risk of invasive colorectal cancer, especially in those taking high doses for more than 10 years. However, serious gastrointestinal bleeding risk increases with higher doses.
Researchers analyzed gene expression patterns in blood samples from patients with Huntington's disease (HD) and asymptomatic carriers to identify potential biomarkers. The study found 12 genes with significantly altered expression levels, which rose to disease-associated levels as carriers approached symptom onset.
Researchers found that stem cells in the bone marrow of female mice can produce new egg cells, contradicting long-standing theories on mammalian reproductive physiology. This discovery could lead to new treatments based on regenerative medicine.
Researchers found that participants with a thicker ventromedial prefrontal cortex (vmPFC) were less anxious when viewing images associated with discomfort, suggesting a protective factor against anxiety disorders. The study's results may inform the development of exposure-based therapies for anxiety disorders.
A new report describes a potential problem with the new drug pregabalin, which may result in neurological complications such as nausea, headache, and hallucinations. The researchers recommend that patients not stop taking the medication abruptly until further studies are conducted.
A study published by Massachusetts General Hospital found that radiofrequency ablation (RFA) is an effective long-term treatment for kidney tumors, with success rates of 100% for surface tumors and 78% for central tumors. The procedure has been used to treat over 100 renal cell carcinomas in 85 patients with similar results.
Researchers found that GM-CSF treatment significantly improved Crohn's disease symptoms in patients, suggesting a defect in innate immune system is the underlying cause. The study supports a new understanding of Crohn's and offers hope for a new treatment option.
A new study by Massachusetts General Hospital found that imaging costs contribute to only about 10% of overall hospital expenses. Despite a significant increase in imaging studies during the study period, the cost of these procedures remained relatively stable.
Researchers have discovered a new mechanism underlying resistance to targeted lung cancer drugs Iressa and Tarceva. A new class of irreversible inhibitors can overcome these structural changes, offering hope for patients with resistant tumors.
A recent study found that men consuming higher levels of low-fat dairy products have a significantly lower risk of developing type 2 diabetes. The researchers analyzed data from over 41,000 participants and found that each serving per day of low-fat dairy intake resulted in a 9% reduction in the risk of developing the disorder.
A study of over 900 primary care residents found that they feel unprepared to counsel patients on depression, substance abuse, and domestic violence. While most felt confident in discussing smoking and diet/exercise, gaps in training remain.
A study found that analyzing prostate tissue's metabolic profile can identify the biologic status of the disease, allowing clinicians to make better-informed decisions on treatment. The technique outperformed standard histopathology in differentiating between cancer cells and benign cells.
A new blood test using NT-proBNP assay can accurately diagnose heart failure in emergency patients with shortness of breath. Combining the test results with clinical judgement provides the most accurate diagnosis.
Research at Massachusetts General Hospital found that tumor cells use VEGF-A to stimulate growth of new lymphatic vessels, allowing them to spread to lymph nodes more easily. The study's results suggest that targeting this process could be a promising approach for preventing the further spread of metastatic cancer.
A study used optical coherence tomography (OCT) to visualize coronary arteries and identify vulnerable plaques in cardiac patients. The technology revealed that heart attack and acute coronary syndrome patients had more lipid and thinner fibrous caps than stable angina patients.
Researchers have identified key genetic pathways essential to RNA interference, a process that can silence specific genes. The findings suggest potential therapeutic applications for diseases such as cancer and age-related macular degeneration.
A new study reveals that valproate poses a greater birth-defect risk than previously thought, with major malformations occurring in 10.7% of infants born to women taking the medication, compared to 2.9% for other anticonvulsants and 1.6% for non-users.
A recent study found that aspirin may help prevent colon polyps in individuals with variant forms of the UGT1A6 enzyme. However, for those without this variant, the benefit was not significant. The researchers suggest that persistent aspirin levels could lead to increased bleeding risks.
Researchers at MGH have identified a potential Alzheimer's risk gene variant that moderately raises the risk of developing the disease. The study found that specific changes in the ubiquilin-1 gene sequence occurred more frequently in individuals with Alzheimer's than in their unaffected siblings.
A recent study found that vitamin D injections can reduce mortality rates by up to 20% in dialysis patients. Currently, only half of kidney failure patients receive this treatment, highlighting the need for more aggressive treatment strategies.
A survey of 41 employers found that many companies provide significant services that could help families affected by ADHD, including flexible work hours, family leave arrangements, and child care assistance. Employers are often unaware of the availability of these services or lack awareness about the needs of parents with ADHD.
The study suggests that the spleen contains a population of primitive stem cells important for healing several types of damage or injury. These cells may produce an even greater variety of tissues than adult stem cells from bone marrow.
Researchers found an extensive system of dendritic cells throughout the intestinal tract that take up bacteria and other antigens. This discovery could lead to a better understanding of conditions like Crohn's Disease and ulcerative colitis, as well as the development of new vaccines.
Hair cell regeneration is a promising approach to treating hearing loss and related neurodegenerative disorders. Researchers have discovered that specific genes, including Rb, play a crucial role in halting the cell cycle, allowing for hair cell regeneration.
A recent study found that students who attended tobacco-industry-sponsored social events were more likely to be current smokers. The events, often held in bars and nightclubs, can be a powerful inducement to begin smoking, especially for those who had not started by age 19.
Researchers found that timing is crucial in combining antiangiogenesis and radiation therapy, with a synergistic effect observed when radiation was administered 4-6 days after initiation of DC101 therapy. This approach improved oxygen delivery to the tumor, reducing hypoxia and increasing sensitivity to radiation.
Researchers found that particular versions of HLA-B molecules make a significant difference in how well the immune system responds against HIV. The study's results illuminate evolutionary interaction between virus and human immune system, providing new insights for developing an effective vaccine.
A recent study found that combining SAMe with antidepressant medication improved symptoms in 50% of participants and led to complete remission in 43% after six weeks. The study, led by Massachusetts General Hospital, investigated the efficacy of SAMe in patients with continuing symptoms despite initial treatment.
An imaging study found a structural difference in the brains of cocaine addicts, with the amygdala being smaller. This could reflect impaired judgement and contribute to the addictive behavior.
Researchers clarify that achieving an INR range of 2.0 to 3.0 is key to reducing stroke risk without increasing hemorrhage risk in atrial fibrillation patients. The study suggests that older patients with atrial fibrillation can still benefit from warfarin therapy, despite higher risks of intracranial hemorrhage.
A comprehensive analysis of Phase 1 cancer trials found a significant drop in drug-related deaths and an improvement in the risk/benefit ratio. The study suggests that increased attention to patient safety, less-toxic targeted therapies, and improved supportive care have contributed to these improvements.
Researchers at Massachusetts General Hospital found that patients use laughter to convey emotional intensity during psychotherapy, while therapists' laughter magnifies this effect. The study suggests that therapists should pay attention to when patients laugh, as it may indicate the need for further exploration of emotions.
Researchers found that an ACAT inhibitor reduced amyloid deposition and improved learning in female mice, suggesting a potential therapeutic approach for Alzheimer's. The study also showed promising results for male mice, which could lead to faster development of new treatments.
Brain imaging studies identify differences in left/right dominance linked to language problems, distinguishing them from autism. Language impairment is strongly associated with a larger right-sided Broca's area.
A study of over 600 older women with receptor-positive breast tumors found that tamoxifen alone was as effective as radiation therapy in preventing recurrence. The research suggests that radiation may not be necessary for these patients, improving their quality of life and reducing side effects.
MGH cancer specialists propose a new 'selective approval' mechanism to identify most suitable patients for targeted therapies. This approach could improve treatment outcomes and reduce waste of resources.
A recent study examined near-term and full-term newborns at Massachusetts General Hospital and found that the near-term group had significantly more diagnoses of clinical problems. The average hospital stay costs for near-term infants were also $2,600 higher than those of full-term infants.
A new treatment combination of peginterferon and ribavirin has been shown to significantly improve viral control in patients with both HIV and hepatitis C. The study found that 40% of patients treated with peginterferon achieved HCV clearance, compared to 12% on the standard interferon treatment.
Researchers found that using growth-hormone-releasing hormone (GHRH) therapy can increase normal growth hormone production and regulation in men with HIV lipodystrophy. This approach resulted in improved body composition, reduced fat deposits, and better cardiovascular health outcomes.
Researchers found that bicalutamide treatment resulted in increased bone mineral density, reduced body fat, and fewer side effects compared to leuprolide. This study suggests a single-drug treatment plan using bicalutamide may be an attractive alternative for men with non-metastatic prostate cancer.
Researchers discover that Kaposi's sarcoma virus can reprogram blood vessel endothelial cells into lymphatic cells, driven by the gene Prox1. This finding provides a potential target for new therapies against the disease.