University of Iowa researchers found that long-term treatment with verapamil can prevent heart muscle damage in mice without serious side effects. They also identified a specific biomarker, cardiac troponin I, to detect early diagnosis of cardiomyopathy in patients with muscular dystrophy.
A Yale researcher found that brain activity is consistently present in the background, contradicting cognitive theories. The study highlights the need for a more holistic approach to understanding brain function and bridging the gap between psychiatric and neuroscientific views.
The new Diffusion Tensor Magnetic Resonance Imaging (DT-MRI) technology provides detailed maps of brain networks and allows for diagnosis of medical conditions like stroke, as well as assessment of neurological disorders. DT-MRI also holds promise for imaging skeletal muscles, heart, and circulatory system.
The researchers discovered a glycerol-conducting channel that selectively filters simple carbohydrates while blocking access to smaller water molecules and ions. This finding sheds light on how protein channels embedded in cell membranes work.
A team of scientists from the University of Illinois at Chicago has discovered a molecular motor called myosin-1 in the nucleus, where it powers the assembly line that forges RNA messages off DNA templates. This finding offers insight into the DNA transcription process and may lead to new ways to treat cancers and other diseases.
Helen M. Berman and Wilma K. Olson receive the honor for their major contributions to molecular biophysics, with a focus on nucleic acids and macromolecular solvation. The awards recognize their dedication to advancing knowledge in biophysics and education.
Dr. Lee Hartwell has made significant contributions to our understanding of the cell cycle and its role in cancer development. His work with yeast has identified over 50 genes crucial for controlling cellular growth and division.
Researchers have found a pore-like hole in the membranes of red blood cells infected by Plasmodium falciparum malaria parasite. This discovery may lead to new treatments for malaria, a devastating disease that kills over one million people each year. The study provides a new target for potential new malaria treatments.
Researchers have found pore-like holes in red blood cells infected by Plasmodium falciparum, a deadly form of the malaria parasite. This discovery may lead to the development of new treatments for malaria, a widespread and devastating disease that affects over 40% of the world's population.
Researchers have discovered a protein called p110g that suppresses colorectal cancer growth in mice and human cell cultures. The absence of the protein leads to spontaneous development of colorectal cancer, while its presence stops tumour growth.
Yale researchers determined the atomic structure of the ribosome's large subunit, revealing its RNA-based enzymatic component. This breakthrough has significant medical implications, as the ribosome is a major target for antibiotics, and could lead to new treatments for resistant bacterial diseases.
Anthony Auerbach, a University at Buffalo biophysicist, has been awarded a $2.7 million Jacob Javits Neuroscience Investigator Award to continue his distinguished research on cell communication and synapses. His focus will be on understanding acetylcholine receptors, proteins that facilitate chemical messages across brain synapses.
Scientists at UCSF have shown that deformed prion proteins can trigger normal proteins to change shape and become infectious. The researchers used a new system to introduce prions into yeast, eliminating the possibility of non-prion molecules contributing to infection.
Scientists at UCSF have identified a molecule, S1P, that guides the union of two primordial heart tubes in zebrafish embryos. This discovery sheds light on the critical role of S1P in human heart development and may provide insights into other cellular processes such as wound healing.
Researchers discovered a mutation in the mineralocorticoid receptor gene linked to severe hypertension in pregnant women. The findings suggest that progesterone may exacerbate hypertension in pregnancy and could lead to clinical trials of salt restriction.
Researchers at the University of Kentucky have discovered a new potential target for compounds that may treat or prevent Alzheimer's disease. The receptor RAGE interacts with amyloid fibrils, accelerating fibril formation and inducing cellular dysfunction.
Researchers train embryonic stem cells into oligodendrocytes, which can rewrap nerve axons and remyelinate damaged spinal cords. The study demonstrates a potential approach to restoring neurological function in patients with conditions such as multiple sclerosis and spinal cord injury.
Researchers identify a component of Chilean tarantula venom that specifically blocks stretch-activated channels, implicated in various physiological processes. This peptide toxin shows promise in treating conditions such as congestive heart failure, heart attacks, and brain tumors.
A team of researchers at the University of Toronto has discovered a crucial link between coxsackievirus B and heart failure, identifying the key gene p56Ick as the trigger for this deadly disease. The finding may lead to new treatment strategies and more targeted predictions of who is at risk of developing heart disease.
Researchers at the University at Buffalo have developed a new method to study protein dynamics in transition states, shedding light on the structural changes during activation. This breakthrough could lead to new drug development and insights into conditions like congenital myasthenia syndrome.
Steven J. Swoap, an assistant professor of biology at Williams College, has been awarded a $497,000 National Science Foundation (NSF) grant to investigate the mechanism of how restricting caloric intake lowers blood pressure. He will also receive a $95,783 NIH award to study why skeletal muscle becomes more fatiguable under disuse.
Scientists have mapped the structure of a protein complex believed to influence cancer cell transformation, enabling potential development of unique cancer-fighting drugs. The Cdc42/GDI complex is a key regulator in both normal and cancerous cells.
The Mouse Models of Human Cancer Consortium brings together 19 university-based research teams to share ideas, results, and reagents, aiming to develop predictive models and pre-clinical drug testing. This cooperative approach is expected to greatly improve understanding of cancer development and biomarker evaluation.
Researchers at UCSF found that reducing a worm's ability to perceive its environment through smell or taste extends its lifespan by more than a third, from two weeks to three or four weeks. This suggests that chemical signals from the environment, possibly pheromones or food smells, influence aging in C. elegans.
The University at Buffalo has received a four-year, $3.8 million grant from the Howard Hughes Medical Institute to develop two new research centers, including a Center for Genomics and Proteomics and a Center for Single-Molecule Biophysics. Five new faculty members will be hired to further develop this area.
A new study suggests that a diet without vitamins A and E may help cancer patients by reducing the size of brain tumors and inducing oxidant stress in cancer cells. This could lead to improved outcomes for those undergoing chemotherapy or radiation therapy, as antioxidants can prevent cancer cells from self-destructing.
Researchers found a gene, gata5, that can reprogram embryonic cells to become beating heart cells. The discovery suggests using this technique to cultivate and transplant genetically modified heart cells into people with failing hearts.
Researchers at Yale University have successfully characterized the function of yeast genes, providing new insights into how human cells work. The study's findings could lead to better understanding and treatment of diseases like cancer.
Researchers at Max-Planck-Gesellschaft have solved the three-dimensional structure of fumarate reductase dimer using X-ray crystallography. The enzyme plays a crucial role in anaerobic bacterial metabolism, and its structure reveals an electron transfer pathway from haem groups to FAD and then to fumarate reduction site.
Researchers at Princess Margaret Hospital and AMGEN identify the role of T cells in bone destruction characteristic of many inflammatory diseases. The study reveals that T cells produce a substance that triggers bone loss, leading to severe osteoporosis and joint damage.
A pair of hydrogen bonds in titin allows muscle to stretch and return to normal by regulating unfolding of protein sections. This finding is a significant step forward in understanding muscle elasticity and its role in cardiac muscular diseases.
A University of Iowa research team found a novel approach to enhance binding between vectors and cells, making gene transfers up to 10 times more efficient. The breakthrough could lead to better methods for treating diseases like cystic fibrosis.
Armstrong's groundbreaking work elucidated the physical processes underlying electrical signaling in and between cells. His research has contributed significantly to our understanding of ion channels and their role in transmitting nerve impulses, with implications for drug development and treatment of various diseases.
A team of biophysicists introduces a new method in atomic force microscopy that maps not only topographic features but also the specifics of biochemistry on biological molecules. The technique, which attaches antibodies to microscope tips, allows for precise location of proteins and has extensive applications in biotechnology.
Researchers at the University of Iowa have identified a complex domino effect that causes cardiomyopathy in limb-girdle muscular dystrophy (LGMD). The study suggests that drug therapy targeting vascular smooth muscle could prevent or stabilize cardiomyopathy in some cases of LGMD.
Researchers have identified a structural anomaly in the Taq DNA polymerase enzyme that hampers its performance in DNA sequencing. By modifying this anomaly, scientists created an improved version of the enzyme, which increases sequencing speed and reduces errors.
A genetic variant of HIV linked to rapid disease progression in the US and Europe is rare in Africa, according to a new study. The findings may impact the design of HIV vaccines and therapies for underdeveloped regions where the epidemic is expanding.
Vanderbilt's Program in Human Genetics will play a key role in identifying genes involved in common diseases, with initial focus on depression and sepsis. The program will utilize cutting-edge technology to analyze DNA samples and develop targeted treatments.
The American Heart Association awarded Gold Heart Awards to Edmond M. Hoffman and Harold C. Strauss for their significant contributions to the organization over several decades. Their work includes promoting increased federal funding of biomedical research and relocating the National Center from New York City to Dallas.
Researchers from the University of Iowa have identified a feedback loop mechanism that could explain the prolonged nature of migraines. The discovery reveals that inflammatory agents released during a migraine stimulate certain neurons to increase calcitonin gene-related peptides (CGRP) secretion, leading to persistent pain.
Researchers propose a revolutionary new theory about cell communication, suggesting that cytonemes relay messages between cells. The theory challenges conventional thinking on morphogen transmission and could fundamentally change our understanding of developmental biology.
Researchers describe the first case of sporadic fatal insomnia (SFI), a neurologic disorder matching Shakespeare's witches' curse, caused by protein misfolding rather than a mutant gene. The condition's symptoms and neuropathology are identical to those of fatal familial insomnia.
A study by the University at Buffalo found that a very-low-fat diet can suppress the immune system of trained runners, making them more susceptible to infections. The researchers discovered that high-fat diets, on the other hand, enhanced certain components of the immune system and reduced inflammation.
A study published in Molecular Cell reveals that the mutated tumor suppressor gene ARF prevents cellular transformation by blocking p53 degradation, allowing it to stop tumor cell growth. Researchers found that mutations in ARF's Exon 2 are linked to cancer, impairing its ability to localize and block p53 export.
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.
Researchers have shown that four drugs, known as angiogenesis inhibitors, can effectively treat spontaneous tumors at distinct stages of progression in mice. The study provides evidence for the potential of these drugs to act against tumors in a mouse model that more closely resembles human tumor development.
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.
Researchers at UNC-CH discovered three genes crucial to cell survival and protein disposal. The proteins ROC1, ROC2, and APC11 are involved in the ubiquitin ligase enzyme that marks proteins for degradation. Disruption of this mechanism may promote cancer development by driving cells to proliferate uncontrollably.
Researchers at Rensselaer Polytechnic Institute have developed a non-invasive technique to study complex cell behavior using electricity. The ECIS 100 technology provides unprecedented sensitivity and detailed results, allowing for real-time analysis of cell activity over time.
Undergraduates at Johns Hopkins University engage in important research projects alongside top scientists, creating innovative solutions such as a robotic submarine and testing treatments for Alzheimer's disease. Students also develop digital models of the heart and conduct gene-therapy experiments with polymer nanospheres.
Researchers at the University of Michigan discovered that folic acid effectively lowers homocysteine levels in blood plasma, reducing the risk of heart attacks and strokes. The study found that folic acid supplementation can also benefit people with normal MTHFR enzymes by protecting them against heat-induced enzyme inactivation.
Scientists have confirmed that a protein complex, when defective, causes limb girdle muscular dystrophy. Researchers developed a cell culture system to mimic the defect and found that complete assembly of the sarcoglycan complex is dependent on simultaneous synthesis of all four sarcoglycans.
A computer model developed by Jay Rubinstein suggests that increasing the signal pulses from external processors can produce more independent neuron activity, similar to natural acoustic stimulation. This breakthrough could lead to substantial improvements in all types of sound coding for people with cochlear implants.
Researchers at Vanderbilt University Medical Center discovered that mice lacking the EP2 receptor exhibit salt-sensitive hypertension and reduced fertility. The study found that PGE2 excretion increased in response to high salt diets, leading to unmasked constrictor receptors and development of hypertension.
Researchers identified SLBP1 and SLBP2 proteins in frog oocytes, which act as biochemical switches triggering histone synthesis crucial for embryogenesis. The study provides new insights into the process of embryogenesis and its relation to stored RNA activation.
A team of scientists has created a detailed model of the structure of a protein in photosynthetic bacteria, which can help explain how certain diseases such as Alzheimer's and Mad Cow Disease occur. The model shows how nature uses irregular forms to create complex structures that are effective at absorbing sunlight.
The Johns Hopkins Program in Computational Biology aims to bridge the gap between physical and biological sciences by providing interdisciplinary training to graduate students. The program will focus on cutting-edge genomics research, enabling students from diverse scientific backgrounds to tackle complex biological problems.
Scientists at Johns Hopkins University have developed a new arsenal of medicines using monoclonal antibodies to prevent sexually transmitted diseases, gastrointestinal viruses, and the common cold. The antibodies can be produced in common field crops like corn and soy, making them potentially cheaper and more accessible.
Researchers have discovered the precise three-dimensional shape of the complex between tamoxifen and the estrogen receptor. This clarifies how estrogens turn on genes and shows precisely how tamoxifen blocks this process, setting the stage for intentional drug design with precise action.
Researchers measured electrostatic properties of a protein surface using a surface-force apparatus, providing the first direct comparison between localized measurements and theoretical predictions. The study verified the accuracy of measurement technique and demonstrated that current models are reasonably accurate for predicting electr...