The study reveals that African Pygmies and their farmer neighbors diverged approximately 60,000 years ago. Genetic analysis indicates a common origin for all Pygmy populations, with distinct physical traits possibly inherited from a shared ancestor.
A new therapy for metastatic prostate cancer has shown considerable promise in early clinical trials involving patients whose disease has become resistant to current drugs. Researchers have developed a novel compound, MDV3100, which blocks the androgen receptor in CRPC cells, lowering PSA levels and reducing tumor growth.
A study published in The Lancet found that early antiretroviral treatment can significantly improve survival rates among HIV-positive patients. By initiating treatment when CD4 cell counts fall between 351 and 450 cells/µL, the risk of AIDS development and death was reduced by 28%.
A recent study found a 188% increase in women with ductal carcinoma in situ (DCIS) undergoing contralateral prophylactic mastectomy (CPM) between 1998 and 2005. The surgery is typically recommended for women with invasive breast cancer, but not for those with DCIS, which has a 98-99% 10-year survival rate.
The study confirms individual galaxies are source of Far Infrared Background, a decade-old question answered. BLAST's submillimeter survey uncovers dust-enshrouded galaxies with properties deciphered through multi-wavelength data.
Establishing a public trust doctrine for federal waters could provide a practical legal framework for regulating ocean-based commerce while protecting marine species and habitats. The doctrine would obliges governments to manage natural resources in the best interests of citizens, without sacrificing future generations' needs.
Researchers have designed tiny RNA molecules that can reduce production of the damaging Huntingtin protein in nearly half of people with the disease. An additional set of four small interfering RNAs may benefit an additional 25 percent of patients.
Researchers found that visual motion influences tactile motion, and vice versa, using a unique tactile stimulator. This discovery suggests overlapping neural circuits for sensory processing.
Researchers have decoded the genomes of two tiny algal strains, highlighting their genes that enable them to capture carbon and maintain its delicate balance in the oceans. The study also sheds light on how these algae may cope with environmental change.
Researchers from the University of Wisconsin successfully generated human embryonic stem cells that can produce myelin, a finding with potential for both basic and clinical research. The process takes 14 weeks compared to 2 weeks for mouse ES cells.
A study published at the Royal Economic Society's conference found that job promotions lead to increased mental strain, resulting in a 10% decrease in mental health. Promoted individuals also reported a 20% drop in doctor visits, possibly due to reduced time availability.
Stereo will use a wide-field-of-view telescope to search for asteroids orbiting the region, which could be leftovers from a Mars-sized planet that formed billions of years ago. The mission aims to provide three-dimensional views of space weather and study its effects on Earth.
Scientists have found that changing the timing of NF-kappa-B signalling can treat diseases more effectively, challenging traditional drug approaches.
Researchers found that synonymous mutations determine mRNA folding, influencing protein levels, and identified a class of mutations slowing bacterial growth. This study improves the design of therapeutic genes by optimizing protein production while maintaining cell health.
Researchers at Ohio State University have discovered a method to compress atoms in an optical lattice until heat is squeezed out and into a surrounding ultra-cold Bose-Einstein condensate, which can absorb and evaporate the heat away. This new approach aims to overcome temperature as a bottleneck for the creation of light crystals.
A recent editorial in The Lancet critiques Coca-Cola's marketing tactics, drawing parallels with the tobacco industry. The company is accused of using celebrity endorsements and blaming shifting to avoid responsibility for its products' impact on health.
Scientists have developed a device that protects transplanted pancreatic precursor cells from the immune system, allowing them to mature into functional beta cells. This breakthrough approach could alleviate the need for long-term immunosuppression in cell transplantation therapy.
Pittsburgh University researchers teamed up with Berkeley biophysicist George Oster to create a computer program generating complex shell patterns. The model shows how mollusks' neural networks process sensory information and past experiences.
A massive earthquake swarm in Yellowstone National Park was analyzed by SSA researchers, revealing epicenter migration and sudden depth changes. The study suggests that hydrothermal fluids may be responsible for the swarm's source properties.
Researchers at Medical College of Wisconsin developed a set of free tools called ViPDAC to combine with Amazon's cloud computing service, providing inexpensive processing time for proteomics data analysis. This makes it possible for more users to analyze their data in greater depth and learn more about the systems they're studying.
A novel gene fusion, SLC45A3-ELK4, is highly expressed in prostate cancers and detectable in urine. This biomarker may help distinguish clinically significant from indolent disease.
Researchers at UNC School of Medicine have identified a compound that could treat secondary glioblastoma multiforme (GBM), a type of brain tumor. By replenishing α-ketoglutarate, they reversed the effects of IDH1 gene mutation, which contributes to tumor growth.
A study by Pitt researchers found that injecting human corneal stem cells into mice with scarred and hazy eyes restored transparency. The cells were able to remodel scar-like tissue back to normal, suggesting a potential treatment for corneal blindness and vision impairment.
A new statistical method estimates the source location and geographic extent of an aerosolized anthrax release based on early cases and weather information. This enables public health decision makers to identify people at risk and treat them promptly to save lives.
Researchers found that visual motion affects tactile perception, causing subjects to perceive touch as moving in the opposite direction. Conversely, tactile motion gives rise to visual illusions of motion in the opposite direction.
A £2.8m grant will support a three-year programme to increase skilled birth attendance and quality obstetric care in 5 target countries, aiming to reduce maternal and newborn deaths. The programme will evaluate the impact of training and supportive supervision on healthcare provider capacity and care delivery.
A team of scientists has identified a crucial requirement for heterochromatin formation, showing that the strength of Chp1's binding to methylated chromatin is essential. This breakthrough reveals a key mechanism in regulating gene expression and genomic stability.
A recent study reveals that cells use a sophisticated communication system to coordinate responses to infection and maintain inflammation in the body. The team discovered that NF-kappaB, a biological machine that coordinates inflammation, uses an FM signal to communicate with surrounding cells.
Researchers have discovered that small RNAs on the X chromosome play a crucial role in male fertility, escaping silencing effects and influencing sperm formation. This finding opens up new possibilities for understanding and potentially treating male infertility and developing non-hormonal contraceptives.
A study found that test scores improved in privatized schools, but at a slower rate than the rest of the city's public schools. The achievement gap between the two groups increased by 2006, with the privatized schools lagging behind their public counterparts.
The 2007 Solomon Island earthquake highlighted an increased tsunami risk caused by the unusual tectonic plate geography and rapid change in direction. The event showed a localized increase in tsunami heights, potentially creating near-trench islands.
Scientists have developed a new approach to survey phosphorylation in cells, revealing a previously uncharacterized protein that plays a crucial role in cancer cell invasion. The study identified ninety phosphorylation events regulated by oncogenic B-Raf and found that one target, MINERVA/FAM129B, is involved in melanoma progression.
Researchers are assessing a new surgical procedure for regenerating cartilage in damaged knee joints. The Cartilage Autograft Implantation System (CAIS) involves extracting healthy tissue and implanting it into the damaged area, potentially producing tougher hyaline cartilage.
A recent analysis found that downloads and citations are highly correlated with a 0.74 correlation coefficient, indicating that downloads can be used as an alternative metric to measure article impact. Downloads mirror citations but become available about two years earlier.
Researchers created a cell culture model that accurately mimics HCN channel function in whole mammalian hearts, enabling the genetic reprogramming of individual channels. This breakthrough facilitates the development of practical biological pacemakers by allowing for rapid assessment of channel mutations before animal testing.
The recent special edition of Virology journal explores the past, present, and future of small DNA tumor viruses, including polyomaviruses, adenoviruses, and papillomaviruses. These viruses have led to fundamental discoveries in basic biology, unraveling complex aspects of host cells.
Researchers have found a way to induce sex in the disease-causing parasite Leishmania by cramming enough parasites into the gut of an insect, potentially leading to new treatments for deadly infections.
Proton-pump inhibitor drugs do not stop recurrent attacks in people with the lung disease. Researchers found no benefit from using these medications solely to temper asthma symptoms, even among those with silent acid reflux. The study suggests that these expensive treatments may be unnecessarily prescribed.
The system gathers detailed info about weather and road conditions from moving vehicles, providing critical alerts to drivers. The goal is to reduce crashes, injuries, and deaths by giving drivers timely warnings about nearby hazards.
Researchers at the University of Missouri found that traditional media offer more comprehensive news coverage than citizen media and blogs. The study analyzed 47 towns and cities across the US and found that legacy sites offered nearly twice as much news content as citizen sites, with an average of less than two citizen sites per city.
Researchers discovered a correlation between low vitamin D levels and elevated serum TNF-α concentrations, indicating increased inflammation. The study's findings suggest that vitamin D plays a role in preventing inflammatory diseases, including heart disease and multiple sclerosis.
A new study finds that politically conservative states with higher per capita income, youth populations, and cancer mortality rates are more likely to restrict youth access to tobacco. The study reveals that clerk intervention and random inspections are effective methods for restricting youth access.
The Canada Foundation for Innovation (CFI) has awarded $854,098 to support four research projects at the Université de Montréal and its affiliated institutions. Dr. May Faraj will study LDL particles as a risk factor for Type 2 diabetes, while Dr. Emile Levy will advance nutrigenomics research to reduce cardiovascular diseases.
A study published in the Journal of the American Society of Nephrology found that enzyme replacement therapy with agalsidase alfa slows kidney function decline in men with Fabry disease. The therapy showed promise when initiated early, particularly for those with higher initial kidney function.
A new study by researchers at the University of Michigan Comprehensive Cancer Center found that higher doses of radiation combined with chemotherapy improve survival in patients with stage III lung cancer. Concurrent chemotherapy increases treatment effectiveness and overall survival rates.
A recent study found that flood conditions can decrease soil aggregation stability by up to 20%, impacting crop production. The research suggests that reducing conditions contribute to the degradation of soil structure.
A study by David Alexander, John Lynch, and Qing Wang found that consumers are four times more likely to choose an incrementally new product over a really new one. The researchers also discovered that actual purchases were twice as likely for the least-new products as the most-new ones, with the difference increasing over time.
A study suggests that combining glomerular filtration rate (GFR) and urinary albumin levels can predict which patients with chronic kidney disease will develop end-stage renal disease. This combination test could help identify patients at high risk of serious kidney trouble.
The James Webb Space Telescope's first flight mirror segment has successfully completed its series of cryogenic temperature tests, a crucial step towards the telescope's launch in 2013. The mirrors will undergo further polishing and verification to achieve the required 20 nanometer accuracy.
A team of researchers has identified the source of unique electronic properties in silver niobate, a ceramic dielectric material used in wireless communications equipment. The study reveals how subtle nanoscale changes in the material's structure give rise to major changes in its physical properties.
Scientists at Albert Einstein College of Medicine have developed a simple and accurate test to detect and quantify ricin, an extremely potent toxin. The assay detects small amounts of ricin more accurately and faster than ever before, paving the way for discovering drugs that could serve as antidotes.
Researchers at NC State University have discovered that a molecule found in soy, genistein, can inhibit the growth of canine lymphoma cells. The study's findings suggest that this compound could be used to enhance traditional cancer treatments like chemotherapy, leading to reduced stress and costs for dog owners.
Researchers at Karolinska Institutet have discovered a new function for a protein essential to mitochondrial protein synthesis, which plays a key part in cell respiration. Without this protein, mitochondria cannot produce proteins and cellular respiration is impaired.
Researchers discovered the JunB gene's role in regulating hematopoietic stem cells, which produce blood cells. The study suggests that JunB can help prevent leukemia by limiting cell proliferation and differentiation.
A new study analyzing over 45,000 people with HIV in Europe and North America found that starting combination antiretroviral therapy (cART) at a minimum CD4-cell count of 350 cells per µL reduces AIDS-related events and death rates. The findings challenge current guidelines recommending cART initiation at a lower threshold.
A recent study found that middle school students as young as 12 are engaging in vaginal, oral, and anal sex, with 1 in 3 sexually active students reporting unprotected sex. The study highlights the need for comprehensive sexual education programs to promote healthy attitudes and skills among young people.
Researchers at Caltech trained computers to automatically analyze aggression and courtship in fruit flies, enabling high-throughput screens for genes controlling these behaviors. The program allows for accurate analysis of complex social behaviors in a matter of minutes, improving the efficiency of genetic research.
Research suggests that supplementing with vitamin D can exacerbate autoimmune diseases by deactivating the immune response and allowing bacteria to spread more easily. The form of vitamin D derived from food and supplements, 25-hydroxyvitamin D, is a secosteroid rather than a vitamin.
A perspective article published in International Journal of Private Law suggests that the prairies can capitalize on environmentally friendly farming practices and produce renewable energy sources. The author proposes solutions such as marketable sod, fertilizers, bio-methane, and artificial wetlands to address climate change.
Researchers found a drop in dissolved nickel in seawater around 2.7 billion years ago, which could have led to the Great Oxidation Event. This event increased oxygen levels dramatically, changing the Earth's surface environment and making advanced life possible.