A new human tumor-suppressor gene, PPP2R1B, has been identified as a potential indicator of susceptibility to lung and colon cancers. The study suggests that the gene's mutations may be inherited, making some individuals more susceptible to cigarette smoke-related chemicals.
A study published in the British Journal of Child Psychology and Psychiatry found that children with severe allergies are more likely to experience behavior problems such as aggression, depression, and irritability. Genetics accounts for over 70% of the relationship between allergies and behaviors like depression and aggression.
Researchers at The Wistar Institute have identified multiple regions on five different chromosomes responsible for wound healing and regeneration in mammals. The study, led by Ellen Heber-Katz, reveals the genetic basis of tissue regeneration in mice, with potential applications in human medicine.
Researchers have identified the gene responsible for Lafora disease, a severe form of epilepsy characterized by seizures and progressive neurological degeneration. The discovery opens up new areas of research into both epilepsy and normal brain function, with potential applications in genetic diagnostics and treatments.
The UW Medical School team determined the three-dimensional molecular structure of a key enzyme responsible for activating many cell functions. This breakthrough is crucial in developing drugs that can control unchecked cell growth leading to cancer.
Researchers at PPPL used a supercomputer to simulate microturbulence in plasma, achieving 400 million particles in 5,000 time-steps. The results provide valuable physics insights and support the use of high-performance computing for discovery in fusion research.
Lee Hartwell, director of the Fred Hutchinson Cancer Center, is one of three scientists to share the Albert Lasker Basic Medical Research Prize. He has been honored for discovering the universal mechanism controlling cell division in eukaryotic organisms, a fundamental insight into cancer cell mutation and development.
A protein on sperm surfaces is essential for binding to eggs and traveling into the oviduct. Mice without this protein have reduced fertility rates, opening possibilities for new male contraceptives and treatments for infertility.
Scientists at Johns Hopkins Medicine solved a major mystery surrounding energy production by determining the molecular structure of adenosine triphosphate synthase (ATP synthase). The discovery explains how cells produce ATP, the common currency of energy, and offers new insights into why people get less energetic with age.
Researchers at Rice University have developed metal nanoshells, particles that can absorb or scatter light at virtually any wavelength, enabling new applications in energy-efficient paints and windows, solar collection materials, and chemical sensors. The team has also shown promise in extending their range to the far infrared.
Genetics professor John Avise's book, The Genetic Gods, examines how genetic discoveries are shaping our understanding of human life, including spirituality. The book argues that genes have a significant influence on human affairs, challenging traditional views of the supernatural.
Researchers at Johns Hopkins Oncology Center identify connection between APC and c-MYC genes, which conspire to initiate almost all colon cancers. The study suggests potential new drug strategies to prevent colon cancer by blocking the signal that activates c-MYC.
Researchers have located a gene mutation responsible for nonsyndromic mental retardation (MRX), a condition affecting brain development and causing severe cognitive problems. The PAK-3 gene defect, discovered on the X chromosome, gives insight into how neurons interact in learning and memory.
A combination of XPS and XRD techniques reveals complex near-surface structures of oxidized palladium alloys, showing chemically bound water and microcrystals of gold and copper. The research provides new information on the mechanical properties and adherence to dental porcelain.
Researchers identified two distinct forms of prostate cancer, with one being more aggressive. The study also found that p27 plays a role in Benign Prostate Hyperplasia (BPH), which is genetically different from prostate cancer and not a precursor to its development.
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.
Researchers found that testosterone injections significantly improved energy levels in 79% of HIV-positive men with low interest in sex and depressed mood. The treatment also boosted enjoyment and satisfaction with life, although the long-term effects remain unknown.
Scientists at Oregon State University have found evidence of rock-eating microbes living nearly a mile beneath the ocean floor, which could suggest similar life on Mars or other planets. The discovery suggests that conditions similar to those on Mars exist beneath the ocean floor and could support life.
Mediterranean fruit flies exhibit two distinct modes of aging based on food supply, with limited protein leading to delayed reproduction and high protein enabling rapid production and aging. This study reveals surprising findings about the relationship between nutrition, reproduction, and longevity in these insects.
Researchers at UCSF have discovered a new molecular mechanism that activates platelets, leading to clot formation. The discovery of protease-activated receptor 4 (PAR4) may lead to new approaches for developing drugs to prevent heart attacks and strokes.
A gene knockout mouse study by Vertex Pharmaceuticals and Yale researchers establishes the role of Caspase-9 in a specific biochemical pathway resulting in neuronal cell death. This finding suggests that blocking Caspase-9 may be a viable strategy for treating acute and chronic age-related neurological diseases.
Researchers at Washington University in St. Louis have linked specific patterns of cognitive decline to specific brain abnormalities in Alzheimer's disease patients. The study found that certain brain sectors are associated with specific cognitive problems, such as memory loss and visual-spatial skills impairment.
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 at Penn State have identified new molecular players involved in gene expression and discovered unexpected dynamics among these molecules. The study reveals how these molecules interact with each other to activate genes, shedding light on the complex process of gene regulation.
Researchers identified a strong association between a 12 bp mutation in a newly discovered X-chromosome gene and X-linked mental retardation. The mutation was found in 7 percent of all institutionalized mentally retarded males surveyed, as well as in higher frequency among those with Autism.
A University of Florida neuroscientist has discovered a mutant gene in chickens that helps researchers better understand a rare human eye disease called Leber's congenital amaurosis type I. The chicken model is being used to develop a form of gene therapy for treating the disease, which affects 100,000 to 200,000 people worldwide.
A cross-cultural study of over 1,200 Japanese women aged 45-55 found significantly lower reports of hot flashes and night sweats compared to American and Canadian women. The study suggests that biological and cultural variables contribute to the differences in menopause experiences.
A rapidly spinning neutron star, SAX J1808.4-3658, is providing proof for the theory that millisecond pulsars are propelled to mind-boggling speeds by accretion of material from a companion star. This discovery fills an important niche in our understanding of star evolution.
The Deutsche Forschungsgemeinschaft (DFG) is funding four new research units exploring various scientific topics. These units will investigate the development of better implants, tools for effective small-scale farm management, and the study of arithmetic and its relations to other mathematical fields.
A new laboratory tool has been developed by UNC-CH researchers to study the interaction between normal and abnormal heart cells during heart attacks. The tool, which simulates the conditions of a heart attack, aims to reduce death rates from sudden cardiac deaths in the US.
Andrew Caton, a Wistar Institute scientist, will receive the Lupus Foundation of Philadelphia's prestigious Sheryl N. Hirsch Award for his work on systemic lupus erythematosus. The award recognizes Dr. Caton's efforts to shed light on the role of infections in lupus initiation and exacerbation.
The Lupus Foundation of America has awarded a summer internship to Yale student Su-jean Seo, who is conducting research on antigens targeted in autoimmune diseases like lupus erythematosus at the Wistar Institute. The fellowship will support her work under the supervision of Dr. Jan Erikson.
Researchers at Kansas State University have identified a protein called PR-39 that can suppress the production of toxic oxygen metabolites involved in reperfusion injury. The substance may hold promise as an anti-inflammatory fighter, potentially preventing tissue damage associated with blocked blood vessels.
Researchers discovered lithium's dual anti-manic/anti-depressive effect by finding it stabilizes glutamate levels in mice brains, bringing them within a stable zone. This results in controlling both extremes of mania and depression in bipolar disorder patients.
A team of researchers found evidence of epitaxial processes that formed magnetite crystals in the ALH84001 meteorite, contradicting claims of nanofossils. The study suggests that the crystals were formed at temperatures too high for biological organisms to exist.
Dr. Masashi Yanagisawa discovered endothelin, a hormone that controls blood vessel tone and plays a crucial role in cardiovascular function. This breakthrough has sparked further research into developing drugs to block its action and is now being tested in clinical trials.
African masks have traditionally been associated with male initiation rituals, but a new study reveals that women also made and wore masks as part of an important life stage. The research challenges the long-held assumption of male dominance in African cultures.
Researchers successfully engineered a seed-building gene into a plant's leaves, resulting in the growth of embryonic tissue and roots on leaf surfaces. This breakthrough could lead to valuable innovations in food crops and revolutionize the production of oils and proteins from corn, canola, and soybeans.
A new computer program called POMPOUS has been developed to predict genetic markers with high accuracy, accelerating the discovery of gene function and reducing costs. The program has identified over 13,000 markers on the human genome, enabling researchers to analyze and identify genes more efficiently.
Researchers have discovered a possible atomic process behind sonoluminescence, which could aid in the emerging field of sonochemistry. The study proposes that stimulated atoms decaying in unison emit light, explaining the short pulses observed in sonoluminescence.
A new study reveals a link between excess thiamine and tumor-cell growth, suggesting that too much of the vitamin can actually help tumors grow. The researchers propose rational use of dietary thiamine may slow tumor growth.
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.
A new study on the fossilized skull of Mr. Ples, a relative of early humans, throws doubt on previous interpretations of brain evolution. The research suggests that some estimates of brain size in early hominids may be too high and that 3-D digital models can provide accurate measurements.
Researchers observed ballistic conductance in multi-walled carbon nanotubes at room temperature, allowing large current densities to flow without heating. This phenomenon could lead to ultra-small electronic devices with improved performance and efficiency.
Researchers at the University of Michigan have identified a protein that causes progressive retinal degeneration and functional blindness in children with Usher syndrome. Understanding the function of this protein may lead to new treatments for people with Usher syndrome and other types of retinal degeneration.
Researchers discovered a gene linked to hydrocephalus and glaucoma in mice, which is also associated with other birth defects. The gene, called mouse forkhead 1 (mf1), produces an incomplete protein that can cause abnormalities in the brain, eyes, and kidneys.
A team of researchers from UNMC and Boys Town National Research Hospital has identified the gene responsible for Usher syndrome Type IIa, a genetic disorder affecting 4 in 100,000 people. The discovery may lead to an eventual cure for the condition, which causes moderate to severe hearing loss and juvenile blindness.
A genetic study published in Animal Conservation reveals that Sumatran tigers are a distinct species from all mainland tiger subspecies. The research, led by Joel Cracraft, uses mitochondrial DNA sequencing to confirm the unique genetic markers of Sumatran tigers, supporting their classification as a separate species.
Researchers found that urbanization reduces stream diversity, but tolerates insects like midges, which are pollution-tolerant. Stream quality is affected by factors like road runoff, pavement pollution, and sediment, highlighting the need for sustainable land use practices to preserve aquatic ecosystems.
Wendy Raymond has received a three-year NIH grant to study cell division regulation in yeast using genetic and molecular approaches. Her research focuses on the role of CDC-14 in exit from mitosis, building on serendipitous findings from her 1997 winter study class.
Scientists identify a common gene family responsible for generating rhythmic electrical impulses in both the brain and heart. This discovery could lead to the development of screening tests and therapeutic applications for cardiac and neurological disorders.
The center will bring together leading cellular and molecular neuroscientists to focus on addiction from an interdisciplinary approach. It aims to understand how addicting drugs act on receptors and disrupt normal communication between nerve cells in the brain, with the ultimate goal of finding new therapeutic approaches for addiction.
Researchers from College of William and Mary and University of Arkansas found that extreme droughts from 1587-1589 and 1606-1612 affected the Tidewater region, decimating corn crops and aggravating relations with Native Americans. The findings suggest that even well-planned colonies would have struggled under these climatic conditions.
Scientists have visualized individual mRNA transcripts for the first time, revealing a cyclical transcription process that hits its peak in 30 minutes. The technique also shows that genes are transcribed at a limited rate by the number of polymerase/mRNA units at a gene's stopping point.
A team of astronomers from the University of Florida and Harvard University have discovered a star surrounded by a disk of dust that may be forming planets. The disk, known as HR 4796A, is about 220 light years from Earth and is thought to represent what Earth's solar system looked like in its infancy.
Researchers discovered a molecular pathway that leads to heart enlargement and found a way to block it using immunosuppressant drugs. The study used mice whose progression from cardiac hypertrophy mirrored humans', finding that activated calcineurin is sufficient to induce cardiac hypertrophy.
The Virginia Tech researchers have identified 30 unique extracts with activity and isolated 20 chemical compounds with bioactivity. The ethnobotanical approach has shown a slight benefit, yielding 3.8% of plants that were bioactive in yeast assays compared to 2.8% of randomly collected plants.
Researchers have designed a machine that can produce buckyballs at lower costs and higher rates, making them more accessible for commercial use. The technology could enable the development of fullerenes-based medical applications, such as antioxidants for treating diseases like ALS.
A UCSF research team has made a striking discovery that mild and intense pain are biologically distinct, involving different neurotransmitters. This knowledge could lead to the development of new drugs targeting these molecules to provide effective pain relief with lower morphine doses.