Researchers at the University of Pennsylvania School of Medicine discovered that anti-diabetic agents can significantly reduce symptoms of inflammatory bowel disease in mice. The study suggests that these compounds may be an effective treatment for humans with ulcerative colitis, a debilitating disorder affecting millions worldwide.
Researchers found that a common antibiotic, gentamicin, can arrest disease progression in 15% of Duchenne muscular dystrophy patients with a specific genetic mutation. The approach may also be effective for similar subsets of people with other genetic disorders. Small-scale clinical trials are planned to test the treatment.
A team of researchers found that tumor necrosis factor (TNF) may have a double-edged effect on brain-injured tissue, with potential benefits in chronic stages but harm in early stages. Blocking TNF in acute phases may be beneficial, while long-term recovery requires natural TNF presence.
Researchers at the University of Pennsylvania School of Medicine have developed a new approach to bone marrow transplantation that prevents graft-versus-host disease by inactivating antigen-presenting cells. This technique targets T cell stimulation, reducing immune system suppression and potentially improving cancer treatment outcomes.
Researchers discovered a new class of microstructured materials that self-assemble into flat, two-dimensional crystallites made from tiny plastic beads. Under the right conditions, these beads seem to defy the basic physical principle of oppositely charged objects attracting.
Researchers found that head trauma impairs brain cells' ability to detect and repair DNA damage, leading to weeks of prolonged cell death. The study suggests that the body's surveillance system breaks down after an injury, making it difficult for cells to recover.
Breast cancer cells migrate toward hormone source, with researchers identifying a novel prolactin-mediated mechanism driving metastasis. The discovery provides new insights into disease progression and suggests potential directions for developing drugs to block breast cancer growth.
Gene therapy's concern about viral DNA insertion into gametes is unfounded, as naturally occurring insertions in sperm cells are 100 times more common than the FDA limit. Researchers estimate that 1 individual in every 8 carries a new retrotransposon insertion.
The American Society of Gene Therapy is hosting its 2nd Annual Meeting, featuring key researchers and NIH director Harold Varmus. The event showcases the latest advancements in gene therapies for various genetic disorders, including AIDS, cardiovascular disease, cancer, cystic fibrosis, and neuromuscular diseases.
Researchers used new techniques to study HDL particles, verifying the lipid bilayer structure and confirming a key finding about protein orientation. The study resolves a long-standing controversy over the structure of HDL, shedding light on its role in cardiovascular health.
A new study reveals that women have a higher proportion of gray matter to cranial volume than men, while men have more white matter and cerebrospinal fluid. This difference is associated with sex differences in cognitive performance, particularly in spatial tasks.
Researchers have created an artificial capsule, dubbed a polymersome, that imitates many qualities of natural cells. The capsules can be made to encapsulate payloads such as genes or pharmaceuticals and are biocompatible, evading detection by the human immune system.
Children who slept with a night light on before age 2 are at significantly higher risk of developing myopia, with 34% affected compared to 10% who slept in darkness. Eliminating nighttime lighting exposure during early childhood may affect the development of this common form of refractive error.
Researchers at the University of Pennsylvania have created the largest protein from scratch, inspired by a household bacteria. The protein, called alpha-3D, has a well-defined three-dimensional structure and could lead to novel drugs and diagnostic tools.
Scientists at Penn School Medicine found that chaperonins, huge protein molecules, catch and unfold misfolded proteins to protect cells. This process takes place within 13 seconds and helps prevent cellular harm caused by protein misfolding disorders like mad cow's disease.
Scientists have discovered a biochemical connection between presenilin and Notch, a protein controlling crucial aspects of developmental biology. This link may lead to new insights into the causes of Alzheimer's disease.
Researchers successfully produce widespread transfer of corrective genetic material into muscle cells using a naturally-occurring hamster model. The technique, developed by Penn researchers, overcomes the existing problem of accessing millions of muscle cells requiring genetic re-engineering.
A new human gene has been identified as potentially playing a key role in regulating high-density lipoprotein (HDL) levels in the body. The gene's overexpression in mice led to nearly undetectable HDL levels, a condition associated with high cardiovascular disease risk.
Researchers at Penn discovered that chemoembolization doubles the survival time of adult patients with colon cancer that has spread to the liver. The procedure, which delivers chemotherapy directly to tumor cells, outperforms systemic chemotherapy in managing metastasized disease.
A study at the University of Pennsylvania Medical Center found that certain retrotransposons can pick up flanking genetic sequences and insert themselves along with tag-along DNA, creating novel genetic combinations. This mechanism may contribute to evolutionary change in humans and other mammals by generating genomic diversity.
Researchers found that COX-2 inhibitors suppress prostacyclin, a hormone-like substance produced in blood vessels, which can lead to increased thrombosis risk. This discovery raises concerns about the potential cardiovascular risks of these new pain relievers.
Scientists have developed a novel gene therapy system that uses a molecular rheostat to control the activity of therapeutic genes. This system allows for precise dosage control and can be achieved through oral administration of a simple pill.
Researchers developed a game to help close the gap between clinician and patient values in rehabilitation, finding that patients prioritize cognitive skills over physical skills early on but clinicians prefer full independence. The game identifies disparities in preferences across different stages of recovery.
Scientists have developed a novel gene therapy treatment that permanently blocks age-related loss of muscle size and strength in mice. The treatment increases muscle strength by up to 27% in older mice, fully restoring their strength to young adulthood.
Bioethicists at the University of Pennsylvania recommend updating protections for human research subjects in response to rapid changes in medical practice. The new guidelines prioritize vulnerable populations, including those with mental illnesses and pregnant women, and aim to prevent abuse and misconduct.
Free-radical activity was found to be roughly doubled in the frontal and temporal lobes of brains of people who died of Alzheimer's disease. The levels of two biochemical markers of free-radical tissue damage were also elevated in these areas, which are critical for memory and intellectual function.
A study reveals that mutant tau proteins disrupt microtubule assembly, leading to neuronal death in frontotemporal dementia and parkinsonism (FTDP-17). This discovery suggests a primary role for tau tangles in disease progression, pointing to potential therapeutic strategies involving tau-stabilizing drugs.
A recent study reveals that up to 8-16% of the male population have experienced childhood sexual abuse, with far-reaching consequences including psychiatric problems, substance abuse, and long-lasting emotional health issues. The researchers call for medical professionals and parents to be more vigilant in addressing this issue.
Researchers at the University of Pennsylvania School of Medicine have discovered a key step in regulating PPAR-gamma receptors, which control insulin sensitivity. The finding may lead to drugs with fewer side effects and greater efficiency for treating adult-onset diabetes.
Researchers have discovered a novel function of the Survival Motor Neuron (SMN) protein essential for mRNA production in all cells. This finding links SMN deficiency to spinal muscular atrophy, a leading genetic cause of infant death, and paves the way for potential therapeutic interventions.
Despite long-standing guidelines recommending antibiotic prophylaxis for dental patients with cardiac valvular problems, a new study finds no association between dental procedures and the onset of endocarditis. The researchers suggest reconsidering current policies due to low incidence and potential risks associated with antibiotics.
Penn physicians developed clinical guidelines for herbal therapies, emphasizing the importance of understanding herbal agents' properties and potential risks. The guidelines caution against using certain herbal products, especially those with toxic effects, and recommend discussing risks and benefits with patients.
A study by University of Pennsylvania researchers found that two-thirds of analyzed newspaper coverage provided a negative representation of managed care, potentially influencing public opinion and policy. The study highlights the need for accurate and balanced reporting on healthcare issues.
Researchers at Penn have developed a smart ICU system that improves vital-sign monitoring of critically-ill patients using artificial computer intelligence. The system utilizes neural networks and fuzzy logic to analyze patient data, enabling clinicians to identify dangerous deviations from ideal vital signs.
A study by researchers at the University of Pennsylvania found that 52% of resident physicians self-prescribe medications, with 42% obtained from hospital sample closets or pharmaceutical company representatives. The practice raises concerns about lost professional objectivity and potential conflicts-of-interest.
A recent study at the University of Pennsylvania School of Medicine reveals that proteins fold through a series of pre-determined, intermediate arrangements. This process allows proteins to correct mistakes quickly and prevent aggregation, which is crucial in fighting diseases like Alzheimer's.
Researchers at the University of Pennsylvania School of Medicine have found that vitamin E confers potent protection from atherosclerosis in genetically modified mice. The study demonstrates that free radicals play a central role in heart disease, and the antioxidant action of vitamin E significantly reduces atherosclerotic damage.
A study found that high-risk prostate cancer patients treated with seed implant therapy had poorer outcomes compared to radical prostectomy and external beam radiation. The researchers suggest that high-risk patients should discuss alternative treatment options with their physicians.
Researchers at Penn develop groundbreaking new brain tracer Trodat to evaluate brain function in normal and disease states. The imaging agent, derived from tropane, follows the flow of dopamine in the brain and can be used as a diagnostic tool for imaging dopamine transporters.
Researchers at the University of Pennsylvania Medical Center have discovered a biochemical channel in the myelin sheath that enables faster exchange of cell nutrients, which could lead to treatments for neuropathies and demyelinating diseases. The study, led by Dr. Steven Scherer, demonstrates the function of connexin32 in myelinating ...
Researchers at the University of Pennsylvania Cancer Center have identified a genetic mutation in the CYP3A4 gene associated with prostate cancer progression. Men carrying this mutation are nearly 10 times more likely to develop advanced tumors, highlighting the potential for targeted prevention strategies.
A study by researchers at the University of Pennsylvania School of Medicine has discovered that programmed cell death in the brain continues for weeks after initial trauma. This finding could lead to better treatments for brain injuries and related conditions such as stroke, spinal cord injury, and neurodegenerative diseases.
Researchers identify three key genes, swirl, somitabun, and snailhouse, that control dorsoventral patterning in zebrafish embryos. The study reveals a new understanding of the biochemical pathways involved in embryonic development, shedding light on birth defects in humans.
A team of researchers led by Dr. Joel Bennett has successfully developed a new technique to study the IIb/IIIa receptor, a key player in platelet aggregation. This breakthrough could pave the way for the creation of more potent anti-clotting drugs.
Scientists at the University of Pennsylvania Medical Center have developed a novel mass spectrometry technique, Micropore Membrane Inlet Mass Spectrometry (MMIMS), to quickly and accurately assess lung function. This device can directly measure trace gas tensions in small blood and breath samples.
Scientists have identified a new molecular target that could lead to novel therapies for ischemic cardiovascular disease. The A3 adenosine receptor has been found to exert sustained protection against injury during exposure to ischemia, suggesting potential for drug development.
Scientists have discovered a novel form of vancomycin that may be effective against resistant bacteria. The findings suggest a new way for the drug to bind to bacteria, opening an avenue for developing next-generation antibiotics.
Researchers at the University of Pennsylvania School of Medicine found that delivering pain medication to patients before surgery reduces post-operative pain long after. The study, which involved 90 men undergoing radical prostatectomies, showed significant pain reduction in patients who received preemptive analgesia.
A study of 228 diseased heart valves found organized, hard-bone tissue in 30 valves, suggesting an active process of calcification. The discovery could lead to the development of treatments to prevent or treat heart-valve disease and provide insights into rare disorders like fibrodysplasia ossificans progressiva.
Researchers have developed a new test to measure corrosive free-radical activity in individuals, providing insight into antioxidant effectiveness. The test uses an isoprostane marker, IPF2alpha-I, which can be detected in urine, and has been validated through cross-validation with an older assay.