A study by Massachusetts General Hospital researchers found that blocking immune cell action increased amyloid-beta deposits and shortened life spans in a mouse model of Alzheimer's disease. The study suggests potential new therapeutic strategies for early-stage Alzheimer's disease.
A team led by Massachusetts General Hospital confirms that Pittsburgh Compound B binds to amyloid-beta protein in the human brain, a key step in Alzheimer's disease diagnosis. The findings support using PET imaging with PiB to track treatment results and emphasize the need for clinical symptom evaluation.
The program provides competitive two-year grants to women junior researchers balancing family responsibilities with research demands. Recipients have remained at MGH, received academic promotions, and secured over $51 million in outside research funding.
Researchers at Massachusetts General Hospital found that patients and therapists share similar physiologic responses during moments of high positive emotion, leading to higher ratings of therapist empathy. The study suggests a biological basis for empathic connection during psychotherapy, with implications for improving therapeutic tec...
Researchers from Massachusetts General Hospital discover that isoflurane, a commonly used anesthetic, can lead to generation of amyloid-beta protein and apoptosis in brain cells. The study suggests caution when using the anesthetic for elderly patients at risk of Alzheimer's disease.
AZD2171, a new angiogenesis inhibitor, has shown significant promise in treating glioblastomas by reducing tumor size and alleviating debilitating brain swelling. The treatment also appears to normalize blood vessels, creating a window of opportunity for other therapies to be more effective.
Researchers at MGH Cancer Center identified a novel gene mutation associated with Wilms tumor in 30% of cases. The mutated gene, WTX, is located on the sex-determining X chromosome and plays a key role in embryonic kidney development.
A study suggests that even commonly used biomarkers are limited in their ability to predict cardiovascular risk. BNP and urinary albumin content were found to be the most useful in predicting future events, but only slightly improved predictions based on conventional risk factors.
A new study found that HIV-infected individuals with CD8 responses directed against the Gag protein have lower viral levels. This contradicts previous approaches focusing on broad responses against multiple viral proteins. The researchers suggest that targeting specific proteins like Gag may be more effective in controlling HIV.
The TEACH study is a Phase III trial investigating the experimental drug Tykerb in patients with early-stage, HER2-positive breast cancer who have not been treated with Herceptin. The trial aims to determine whether Tykerb can benefit women several years after their initial diagnosis of breast cancer.
Researchers at MGH found that individuals infected with both HIV and HCV who maintain low viral levels have stronger immune responses. Early antiretroviral treatment before CD4 levels drop may be crucial to preserve HCV control in co-infected patients. The study suggests a potential strategy for improving treatment outcomes.
A new database reveals a wide range of patient visits per year, with higher volume facilities concentrated in metropolitan areas. The study suggests different approaches may be needed to ensure access to emergency care for all Americans, particularly in rural settings.
A survey of IRB members found that over one-third have financial relationships with commercial firms, which could compromise the review process. The study highlights the need for clearer policies and more oversight to address these conflicts of interest.
Researchers confirm protocol to reverse type 1 diabetes in diabetic mice, with adult precursor cells from the spleen contributing to regeneration of beta cells. The study provides new evidence for a potential source of regenerating islet cells and suggests that older mice may be more responsive to this approach.
Massachusetts General Hospital researchers have discovered a master cardiac stem cell capable of differentiating into three types of heart cells. This finding offers new prospects for drug discovery and genetically based models of human disease, as well as a novel strategy for the regeneration of cardiac muscle and associated structures.
A survey of US physicians found that over 90% believe participation in health-focused community activities and political involvement are important. Two-thirds of respondents reported actively engaging in such activities, with key areas of focus including healthcare coverage, tobacco control, and reducing air pollution.
Researchers at Massachusetts General Hospital found that proton beam radiation therapy achieved better tumor control for advanced adenoid cystic carcinoma of the cranial base compared to traditional radiation therapy. The study reported a 9% local recurrence rate, while traditional radiation resulted in over 70% local recurrence.
A new optical imaging technique called OFDI can visualize broad areas of the esophagus and coronary arteries, allowing for early-stage disease diagnosis. The technique could identify precancerous lesions and vulnerable plaques in the coronary arteries.
Researchers propose a new model for targeted cancer therapy, suggesting that disruption of cell signaling pathways leads to cell death. This could lead to more effective treatment strategies and personalized cancer treatment.
Researchers at Massachusetts General Hospital have discovered that insulin-like growth factor 1 (IGF-1) enhances the growth of corticospinal motor neuron axons, a critical population affected by ALS. IGF-1 stimulation increases axon outgrowth speed and extent, paving the way for potential treatments.
Researchers found that specific HLA Class I/HIV viral fragment combinations are associated with a more powerful antiviral response. The study suggests that genetic factors play a significant role in determining how well an individual's immune system controls HIV during early infection.
Researchers found that a specific gene variation is associated with lower pain sensitivity and reduced risk of chronic pain. The study suggests that individuals with this genetic marker may be less sensitive to pain and have a lower risk of developing neuropathic pain.
Researchers at Massachusetts General Hospital developed a new type of miniature endoscope that produces high-definition, three-dimensional images. This technology, called spectrally encoded endoscopy (SEE), allows for the creation of detailed images of areas previously inaccessible to medical diagnosis and treatment.
A study finds that the mutant huntingtin protein disrupts energy metabolism, leading to neurodegeneration in Huntington's disease. Researchers discovered that PGC-1a levels are lower in affected cells, suggesting a protective role for the protein.
A survey of over 3,000 physicians found that fewer than half incorporate e-mail and Internet resources into routine patient practice. Only about 40% said they used e-mail communication with colleagues frequently.
A new candidate biomarker, galectin-3, has been identified as a potential marker for heart failure diagnosis and prognosis. Elevated levels of this inflammatory protein can help diagnose heart failure and identify patients at risk of dying within 60 days.
Researchers from Massachusetts General Hospital successfully tracked transplanted pancreatic islets using MRI, revealing complex factors behind islet loss and potential causes of rejection. The study could lead to improved outcomes for patients with type 1 diabetes.
A national survey of residents found that over half reported not receiving instruction on key interpreter use topics, despite federal regulations. The study highlights the need for better training and education to improve quality care for patients with limited English proficiency.
Researchers found a molecular pathway that turns off immune cells targeting HIV, leading to exhaustion. Blocking this pathway restores function to these cells, suggesting a potential new approach to treating HIV infection.
A large-scale haplotype-mapping study aims to identify genetic factors that enable some HIV-infected individuals to suppress viral replication without treatment. The study, known as the Elite Controller Collaborative Study, hopes to develop a first-generation HIV vaccine that can successfully suppress viral levels.
A research team from Massachusetts General Hospital has discovered a potential drug target for Huntington's disease by identifying a novel inhibitor of Poly(ADP-ribose) polymerase (PARP1). PARP1 inhibitors can protect HD-affected cells from damage and energy depletion in laboratory assays.
Researchers at Massachusetts General Hospital have identified potential ovarian cancer stem cells, which may be responsible for tumor recurrence and resistance to chemotherapy. These stem-like cells were found in mouse and human ovarian cancer lines, and were sensitive to certain treatment approaches.
The number of women in leadership roles in research studies has increased fivefold since 1970, but they remain underrepresented among medical science investigators. Women are entering the medical profession at the same rate as men, yet few studies and editorials are authored by them.
Researchers at MGH and Cyberkinetics have successfully linked a paralyzed patient's thoughts to electronic impulses, allowing him to control devices such as a computer cursor and prosthetic hand. The breakthrough uses the BrainGate Neural Interface System, which translates brain signals into electronic commands.
Researchers found that individuals with a single copy of the parkin gene mutation exhibit an average age of onset around 43 years old. This discovery challenges current understanding and highlights the need for further investigation into the role of partial parkin gene expression in Parkinson's disease.
Scientists have made significant progress in understanding how to regenerate hair cells in the inner ear, a major breakthrough in the quest for new treatments for acquired hearing loss. The study found that blocking the Rb protein can promote hair cell regeneration, with specific areas of the inner ear exhibiting different responses.
A study found that blocking key protein etanercept reduced inflammatory markers in patients with metabolic syndrome, a condition characterized by abdominal obesity, high triglycerides, and low HDL cholesterol. The treatment also showed promise in reducing cardiovascular risk factors.
A recent study has found that damage to the right insula area of the brain is associated with a significantly higher risk of heart muscle injury after a stroke. This discovery has potential implications for identifying at-risk patients and tailoring treatment approaches.
Researchers found that individuals with ADHD were more likely to misuse their medication, particularly selling or taking too much. Immediate release stimulants were most prone to misuse, while extended release formulations were not targeted by abusers.
A study compared the abuse potential of two methylphenidate formulations, finding that the delayed-release version took longer to produce maximum effects and was less detectable. Researchers suggest that different formulations may vary in safety characteristics, warranting further study.
A blood test measuring NT-proBNP levels can accurately predict one-year mortality risk in patients with shortness of breath, regardless of underlying heart failure diagnosis. The study suggests that this test should be routinely used to identify high-risk patients needing more intensive treatment and follow-up.
A recent study found that discontinuing antidepressant medication during pregnancy can lead to a higher risk of depression relapse compared to continuing treatment. The study, which enrolled 201 pregnant women, suggests that women taking antidepressants who anticipate pregnancy should discuss the risks and benefits with their doctors.
Researchers have discovered that CRPS-I patients exhibit reduced small-fiber nerve endings, leading to abnormal neural function and increased sensitivity. The study provides an identified cause for the condition, shifting its classification from 'psychosomatic illness'.
Two studies found that 44% of geneticists and 32% of other life scientists reported witholding data from colleagues, while trainees reported difficulties accessing information and resources. Data withholding was more common in highly competitive settings and associated with industry relationships.
Researchers followed 207 patients who survived intracerebral hemorrhage and found no increased risk of second hemorrhage among those taking antiplatelet therapy. The location of the original hemorrhage was associated with a higher risk of recurrence, particularly in the cerebral cortex.
The study reveals that the calcium-sensing receptor is crucial for the proper localization of blood stem cells in the bone marrow. Without this receptor, stem cells are unable to adhere to essential bone proteins and have limited regenerative capabilities.
Minority patients, particularly African Americans, were less likely to receive inhaled steroid medications for asthma, with usage increasing only among African American patients. Children also faced barriers to access, reflecting the need for further studies on healthcare disparities.
A new blood test using NT-proBNP can accurately diagnose heart failure in patients with kidney disease, comparable to BNP testing. The study found that kidney disease does not affect the diagnostic accuracy of NT-proBNP when used properly.
A new study found that brain structure associated with fear inhibition is also linked to personality traits like extraversion and neuroticism. The researchers used a standard personality test in combination with brain imaging to analyze the link between the brain region and extinction memory.
An international multi-center study confirmed the usefulness of a blood test in diagnosing and predicting the short-term risk of death in patients with heart failure. The study, which analyzed data from over 1,200 patients, found that the test was strongly predictive of mortality within two months of symptom onset.