A Stanford University researcher has pinpointed the mechanism by which a gene associated with both autism and schizophrenia influences behavior in mice. The study identified behavioral changes in the mice similar to some symptoms of autism and schizophrenia, highlighting the complexities of cognitive disorders.
A newly discovered spider species, Bagheera kiplingi, has been found to feed predominantly on plant food, defying the traditional predator-prey paradigm. The research revealed that this Central American jumping spider exploits a co-evolutionary mutualism between ants and acacia shrubs, allowing it to thrive in a unique ecological niche.
A new report shows that doctors in Australia and New Zealand used ECMO to treat critically ill patients with H1N1, saving 54 out of 68 patients' lives. The study found that prolonged life support treatment was effective in severe cases, and survival rates were high despite the severity of symptoms.
A new study reveals that inhibiting autophagy in mice leads to an increase in brown fat cells and a reduction in body mass. The researchers conclude that autophagy has a crucial role in regulating the formation of distinct fat cell types, providing a potential avenue for treating obesity.
Researchers found that high Treg levels protect against severe West Nile virus disease in humans and mice. Tregs suppress the function of other immune cells, preventing lethal infection.
A study published in PLoS ONE identifies the genetic mechanisms behind L-form bacteria formation and survival. Researchers found that three groups of mutants with varying degrees of defect in L-form growth were linked to pathways related to cell envelope stress, DNA repair, iron regulation, and outer membrane biogenesis.
Kaiser Permanente and UCSF to conduct genome-wide analysis of DNA from 100,000 Kaiser members, linking genetic info to decades of health data. The resource will facilitate studies on gene-environment interaction and aging.
A recent UCLA study found that women developing new-onset breast tenderness after starting estrogen plus progestin hormone replacement therapy are at a significantly higher risk of developing breast cancer. The research analyzed data from over 16,000 participants in the Women's Health Initiative clinical trial.
The discovery of Titanoboa, the largest snake to have ever existed, reveals that Neotropical rainforests flourished during warm periods, with temperatures up to 3-5°C warmer than today. The fossil rainforest's plant diversity was lower than expected, suggesting it may have been recovering from mass extinctions.
The new guidelines from the American Academy of Neurology identify riluzole as a treatment that can slow disease progression in ALS patients. Using an assisted-breathing device is also expected to increase life expectancy and quality of life for these patients.
A study in South Africa found that medical documentation of injuries is associated with higher conviction rates in adult rape cases, while DNA evidence has limited impact. The research highlights the importance of basic forensic medical practices in assisting courts in rape cases.
A new study from the University of Gothenburg found that supervised strength training improves athletic performance by 50% compared to unsupervised exercises. The research also showed a significant reduction in injuries among athletes receiving personalized, supervised training programs.
Researchers will develop a system for conducting climate-impact assessments for international market systems, focusing on the tart-cherry industry. The study aims to provide detailed information for industry stakeholders to plan for future investments.
Researchers at the University of Gothenburg have identified a protein called MUC1 as an important part of the body's defense against Helicobacter pylori. Genetic variations in MUC1 molecules may contribute to why some people are more ill than others with stomach ulcers and stomach cancer.
New guidelines for treating Lou Gehrig's disease recommend the use of riluzole, assisted-breathing devices and PEG feeding tubes to increase longevity and quality of life. Dr. John England and his team analyzed research findings to provide specific, evidence-based recommendations for ALS care.
A Tel Aviv University drug based on an older generation antibiotic shows promise in treating colon cancer by suppressing polyp growth and repairing genes. Preclinical studies have shown a 80% reduction in polyp size and a 30% increase in mouse lifespan.
Researchers at the University of Pittsburgh have discovered tiny strands of RNA, previously considered 'junk,' that are actually very stable molecules with potential roles in cellular processes. The findings could lead to new types of biomarkers for diagnosis and prognosis, as well as new therapeutic targets.
Researchers at Stanford University developed a new magnetic-nano sensor chip that can detect cancer-associated proteins with high accuracy and search for up to 64 different proteins simultaneously. The sensor is up to 1,000 times more sensitive than current methods and can detect biomarkers in bodily fluids with low concentrations.
A study found that US researchers are more positive about including ethnic minorities in health research than their UK counterparts. The UK researchers were often reticent about the need, citing concerns over scientific importance and practical difficulties.
A Swedish study found that more pre-term infants surviving in neonatal intensive care units are experiencing vision problems due to retinopathy of prematurity, a condition involving abnormal blood vessel development in the retina. The incidence of this condition is higher in extremely preterm infants born before 27 weeks' gestation.
Research identifies opposing roles for phosphorylated alpha-synuclein amino acids in Parkinson's disease. Phosphorylation at Tyr125 protects nerve cells from alpha-synuclein toxicity, whereas Ser129 phosphorylation increases toxic oligomers.
Researchers at the University of Southampton discovered a link between a mother's high-fat diet during pregnancy and her child's development of fatty liver disease. The study found that a high-fat diet can affect the developing liver of a fetus, making it more susceptible to fatty liver disease later in life.
Researchers have identified a counterbalancing role for the phosphorylation of alpha-synuclein amino acid 125 in nerve cell protection against alpha-synuclein-mediated toxicity. Higher levels of this phosphorylated form were found to decrease toxic soluble oligomers and protect against Parkinson's disease symptoms.
A Duke University researcher has discovered a receptor that receives messages from astrocytes, which can form excitatory synapses in the brain. The discovery may explain why people develop epilepsy or have neuropathic pain, and could lead to new therapies for these conditions.
Case Western Reserve University researchers are using pluripotent stem cells to study schizophrenia and gain a better understanding of the complex disease. The study aims to characterize brain cell function in adolescent patients with schizophrenia, with the goal of deciphering the underlying cause of the condition.
A study published in JAMA found that most patients with severe respiratory failure due to 2009 influenza A(H1N1) and treated with an oxygenating system survived the disease. The study analyzed data from 68 patients who received extracorporeal membrane oxygenation (ECMO) support, and found that 54 had survived and 14 had died.
African scientists will develop and grow their own pest-resistant bananas through a collaborative project with UK researchers. The initiative aims to empower nations to address agricultural challenges and improve food security in Sub-Saharan Africa.
A CDC investigation found that contaminated pre-filled heparin and saline syringes from a single company led to 162 S. marcescens bloodstream infections in nine states. The company failed to comply with FDA's Good Manufacturing Practices, leading to the voluntary recall of affected syringes.
Packages of care aim to improve epilepsy recognition and management, closing the 'treatment gap' in LMICs. Epilepsy affects 65 million people worldwide, with limited access to effective treatment.
Researchers at Salk Institute discover critical period during which Lhx2 decides progenitors' regional identity, determining the development of distinct cortical regions. This knowledge may help understand neurodegenerative disorders and specify stem cells to repair brain damage.
A study published in the Journal of the National Cancer Institute found that personalized, proactive telephone counseling significantly increased 6-month prolonged abstinence from smoking among teens. The intervention combined motivational interviewing and cognitive behavioral skills training.
Researchers found that declines in visuospatial skills and cognitive abilities can occur years before clinical diagnosis of Alzheimer's disease. These findings suggest that conventional methods for diagnosing the disease may not be sensitive to early manifestations of the condition.
Visual impairment without correction is associated with a higher risk of death among individuals aged 49-74 and all visual impairments. Disability in walking may represent an important indirect pathway to mortality for persons with visual impairment.
Researchers at Singapore Immunology Network (SIgN) have identified the molecular key to understanding the p53 tumor suppressor gene's function. The discovery reveals how p53 regulates genes by recognizing specific sequences of nucleotides in DNA, providing a missing piece to this complex biological process.
Researchers at Fred Hutchinson Cancer Center developed a phone-based counseling intervention that recruited and retained adolescent smokers, significantly impacting six-month continuous quitting rates. The study found 21.8% of smokers in the counseling group achieved continuous quitting after completing nine personalized calls.
Researchers have developed a new mouse model of amyotrophic lateral sclerosis (ALS) that closely replicates human symptoms, including progressive paralysis and muscle loss. The genetically engineered mice also exhibit damage to motor neurons and protein clumps, similar to human ALS pathology.
Researchers at UCLA's Jonsson Comprehensive Cancer Center found that the loss of PTEN tumor suppressor gene plays a central role in transforming benign neurofibromas into malignant and deadly sarcomas. The study could lead to new therapies targeting cell signaling pathways regulated by PTEN.
A new study from the University of Cincinnati College of Law has shown that a group of psychiatrists who evaluated mental competence from case files performed at a strikingly high level of accuracy. In an average of 29 out of every 30 cases, the psychiatrists could distinguish competent defendants from incompetent defendants.
Researchers at the University of Florida have found that inflammation in the colon tissue can trigger the transition from a non-cancerous state to cancer. The study suggests that targeting specific immune system hormones may be a key to preventing or inhibiting cancer growth, with potential implications for diagnostic tests and therapy.
Chinese dyslexia is characterized by two disorders: visuospatial deficit and phonological disorder, differing from English dyslexia which primarily affects phonological processing
Scientists found that Parkinson's disease progresses more slowly in participants with the highest levels of urate. This discovery supports the idea that patients and doctors may be able to better predict the course of the illness.
A study funded by NIH found that individuals with higher urate levels in their blood and cerebrospinal fluid have a slower rate of disease progression. A clinical trial is underway to examine the safety and benefits of supplemental urate elevation for recently diagnosed patients.
The article discusses the potential of sustainable Earthship design in reducing environmental impact. Researchers argue that these self-sufficient homes can provide long-term shelter and financial independence, but still rely on technological systems for resource production.
A study of 2,285 adults found that neighborhoods with better physical activity resources and access to healthy foods were associated with a 38% lower incidence of type 2 diabetes. The authors conclude that modifying environmental factors may be a key step in arresting the rising epidemic of type 2 diabetes.
A new study reveals that women abused by intimate partners experience a wide variety of doctor-diagnosed medical maladies, including abdominal pain, chest pain, and menstrual disorders. Abused women have an almost six-fold increase in clinically identified substance abuse and a three-fold increase in receiving depression diagnoses.
In a Rwandan pilot program, nurses safely and effectively prescribed antiretroviral therapy to patients with HIV after completing at least 50 consultations. The study found that patients who received treatment showed improved health outcomes, including increased weight gain and CD4 cell counts.
A UNC study found that using audio recordings of guided imagery at home in addition to standard medical treatment can significantly reduce abdominal pain in children. The benefits were maintained for six months after treatment ended, highlighting the potential of self-administered treatment as a cost-effective and accessible option.
The decline in Zimbabwe's health indicators over the past three decades is attributed to high HIV/AIDS prevalence, poor governance, and economic policies. To address this, the authors propose a new healthcare recovery plan prioritizing essential services like emergency obstetric care and training specialist mid-level workers.
A group of researchers at the University of Pennsylvania has identified a population of cells resembling pigment-producing skin cells in the atria and pulmonary veins of mice and humans. These melanocyte-like cells may contribute to the development of atrial fibrillation, the most common type of abnormal heart rhythm.
Researchers at Case Western Reserve University are developing a novel approach to building vascular networks in engineered tissues using custom-designed synthetic molecules and embryonic stem cells. Their goal is to produce networks that can grow and maintain themselves like natural blood vessels, paving the way for improved human lives.
Researchers found that a multivariable prediction model can accurately identify patients at low risk of recurrence, allowing for reduced chemotherapy treatments without compromising patient outcomes. The study suggests personalized medicine approach could improve cancer treatment decisions.
Graphene nanodomes, formed by concentric rings of carbon atoms, offer new insight into graphene growth and potential methods for assembling components of graphene-based computer circuits. The discovery enables varying the size of the carbon domes from a few nanometers to hundreds of nanometers across.
A study from the Sahlgrenska Academy found that teenage boys in Sweden are less likely to take responsibility for preventing the spread of chlamydia and other STIs. Researchers say that new methods are needed to reach boys with information on protection against infections.
Berkeley researchers have imaged the human RISC-loading complex for the first time, proposing a model of how small RNA molecules target specific messenger RNAs for silencing and/or destruction. This work provides new insights into RNA interference mechanisms and has significant implications for gene regulation in humans.
Researchers at Arizona State University have successfully created a molecular diode, the smallest electrical component in electronics. The breakthrough uses a technique called AC modulation to apply a mechanical perturbation to a molecule, allowing it to form a closed circuit and control current flow.
Bacteria have a novel RNA repair system that adds a methyl group to damaged RNA, making it impossible to cleave the site again. This discovery has implications for protecting cells against ribotoxins and understanding RNA interference in eukaryotes.
Researchers found that aspirin and folic acid do not affect inflammation markers in patients with colorectal adenomas. However, low-dose aspirin was found to stabilize C-reactive protein levels, which may be affected by high folate intake.
A new study published in Pediatrics reveals that children born with low birth weight are at a higher risk of developing asthma later in life. The study, which analyzed data from 10,918 twins, suggests that impaired fetal growth affects lung development and contributes to the development of asthma.
Most SCID children treated with related donor bone marrow transplants can lead normal lives, says a new study. The research found that those who received transplants within the first 14 weeks of life were more likely to survive and have fewer problems over time.
Researchers found that culturally learned behaviors are a better explanation for altruism than genetics. Altruism was more common in neighboring social groups with similar cultural practices, suggesting a gene-culture coevolution of prosocial propensities. This challenges traditional views on the role of nature versus nurture in shapin...
Researchers are studying naturally occurring cancers in dogs to inform the development of new cancer drugs, devices, and imaging strategies for human cancer patients. The study aims to improve care for human patients by leveraging insights gained from canine cancer biology.
Researchers have identified a genetic factor that increases the risk of sudden cardiac death in patients with congenital long-QT syndrome. Variants of the gene NOS1AP were found to predispose individuals to a worse form of the disease, leading to longer QT intervals and increased symptoms.
A study of critically ill patients with 2009 H1N1 found a high fatality rate of 40% due to severe acute respiratory distress syndrome and shock. Young patients were disproportionately affected, highlighting the importance of early recognition and treatment.
Researchers confirm association between higher blood urate levels and slower disease progression in Parkinson's patients. The study suggests that elevated urate levels may have a protective influence on brain cells, but the exact mechanism is unclear.
Higher urate levels in patients with early Parkinson's disease are associated with slower clinical decline. The study found that elevated urate levels in the cerebrospinal fluid were inversely related to disease progression.
A study published in JAMA found that critically ill patients with H1N1 were predominantly young adults with severely low oxygen levels, multi-system organ failure, and frequent need for mechanical ventilation. Most patients could be supported through critical illness with therapy.
The National Institutes of Health has awarded Kaiser Permanente over $54 million to conduct health research in various critical areas. The grants will utilize Kaiser Permanente's vast electronic health record database, doubling the number of individuals available for genome-wide association studies.