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Search results for “Toxicology”

1,000+ results for "Toxicology"

Priorities for research on pharmaceutical and personal care products in the environment

A recent study by the Society of Environmental Toxicology and Chemistry identified key knowledge gaps in understanding pharmaceutical and personal care product (PPCP) impacts on ecosystems and human health. The priority areas include research on human health exposure, as well as regional testing methods for measuring PPCPs in the envir...

SourceSociety of Environmental Toxicology and Chemistry·JournalIntegrated Environmental Assessment and Management·DateSep 22, 2014
SAMSUNG T9 Portable SSD 2TB

SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

IU researchers isolate process that damages lungs of donors with traumatic brain injury

Researchers at Indiana University have isolated a process that damages the lungs of donors who suffered from traumatic brain injury, which may lead to improved lung transplant outcomes. The study found that fluid accumulation in the lungs occurs within hours after head trauma, limiting oxygenation and reducing lung function by nearly 80%.

SourceIndiana University·JournalScience Translational Medicine·DateSep 3, 2014

Computer simulations visualize ion flux

A team of researchers used computer simulations to study how ion flux works in voltage gated sodium ion channels. The results revealed that a specific amino acid, glutamic acid, plays a crucial role in regulating channel flux and enabling selective sodium influx.

SourceUniversity of Vienna·JournalPLOS Computational Biology·DateSep 1, 2014

VCU receives NIH grant to expand Alcohol Research Center

The VCU Alcohol Research Center will investigate the genetic systems contributing to alcoholism using advanced statistical and bioinformatic methods. Researchers will focus on gene networks influencing alcohol behaviors in humans and animals.

SourceVirginia Commonwealth University·DateAug 19, 2014
Nikon Monarch 5 8x42 Binoculars

Nikon Monarch 5 8x42 Binoculars deliver bright, sharp views for wildlife surveys, eclipse chases, and quick star-field scans at dark sites.

Penn-led expert panel calls for public health research on natural gas drilling

The Penn-led expert panel recommends key components for public health research, including baseline ground water quality data and ambient air quality monitoring. The panel also urges the use of community-based participatory research principles to address concerns from stakeholders.

SourceUniversity of Pennsylvania School of Medicine·JournalEnvironmental Health Perspectives·DateAug 11, 2014

Fipronil and imidacloprid reduce honeybee mitochondrial activity

The study found that fipronil and imidacloprid inhibit mitochondrial bioenergetics in honeybees, leading to depleted cell energy and impaired flight muscles. This effect can contribute to the inability of bees to forage and return to their hives.

SourceSociety of Environmental Toxicology and Chemistry·JournalEnvironmental Toxicology and Chemistry·DateAug 6, 2014

Study: Arctic mammals can metabolize some pesticides, limits human exposure

Research from the University of Guelph reveals that arctic mammals like caribou can metabolize current-use pesticides ingested through vegetation, limiting their impact on humans who consume them. The study found significant biomagnification was not observed in this food chain.

SourceUniversity of Guelph·JournalEnvironmental Toxicology and Chemistry·DateAug 6, 2014
Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

Pesticide DDT linked to slow metabolism, obesity and diabetes

Exposure to pesticide DDT before birth is linked to increased risk of metabolic syndrome in female mice, characterized by obesity, high cholesterol, and diabetes. The study also found sex differences, with females more susceptible to these conditions.

SourceUniversity of California - Davis·JournalPLOS ONE·DateJul 30, 2014

Forced mutations doom HIV

A new study reveals how a drug called KP1212 induces rapid mutation in HIV, which could help combat the residual virus in patients. The researchers believe that over time, this treatment could lead to the destruction of latent viruses, potentially curing HIV patients.

SourceMassachusetts Institute of Technology·JournalProceedings of the National Academy of Sciences·DateJul 28, 2014

Researchers discover new way to determine cancer risk of chemicals

Researchers developed a predictive model to identify carcinogenic chemicals using gene expression response in the liver, improving cancer screening and evaluation processes. The new approach enables accurate and cost-effective screening for over 80,000 chemicals currently in commercial use.

SourceBoston University School of Medicine·JournalPLOS ONE·DateJul 24, 2014
AmScope B120C-5M Compound Microscope

AmScope B120C-5M Compound Microscope supports teaching labs and QA checks with LED illumination, mechanical stage, and included 5MP camera.

Researchers demonstrate health risks posed by 'third hand' tobacco smoke

A new study estimates the potential cancer risk by age group for non-dietary ingestion and dermal exposure to third hand tobacco smoke. The results indicate potentially severe long-term consequences, particularly to children, with cancer risks exceeding EPA recommendations in three-quarters of smokers' homes.

SourceUniversity of York·JournalEnvironment International·DateJul 16, 2014

Low doses of arsenic cause cancer in male mice

Research found that low doses of arsenic, similar to those consumed by humans, cause lung cancer in male mice. Arsenic levels above 50 ppb led to significant increases in benign and malignant lung tumors.

SourceNIH/National Institute of Environmental Health Sciences·JournalArchives of Toxicology·DateJul 8, 2014

'Master switch' for myelination in human brain stem cells is identified

Researchers at the University at Buffalo have identified SOX10 as a key transcription factor that initiates myelination in human brain cells. This discovery brings researchers closer to developing a viral or pharmaceutical approach to inducing SOX10 in MS patients, which could lead to a more effective treatment for multiple sclerosis.

SourceUniversity at Buffalo·JournalProceedings of the National Academy of Sciences·DateJun 30, 2014
Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

NOAA scientists find mosquito control pesticide low risk to juvenile oysters, hard clams

A NOAA study found that four common mosquito control pesticides pose little risk to juvenile oysters and hard clams, but climate stressors such as hypoxia and acidification increase their toxicity. The research provides valuable data for shellfish mariculture operations and environmental resource agencies.

SourceNOAA Headquarters·JournalArchives of Environmental Contamination and Toxicology·DateJun 9, 2014

One cell's meat is another cell's poison

A study found that removing JAK2 from healthy hematopoietic stem cells accelerates leukemia in mice, causing a rapid increase in cancerous cells. Healthy cells, however, are severely impaired and often disappear due to the loss of JAK2.

SourceUniversity of Veterinary Medicine -- Vienna·JournalLeukemia·DateMay 30, 2014

Compounds in saliva and common body proteins may fend off DNA-damaging chemicals

A study by Johns Hopkins Medicine found that saliva enzymes, blood proteins, and muscle proteins can protect against DNA damage caused by pyrogallol-like polyphenols (PLPs) in teas, coffees, and liquid smoke flavorings. The presence of these defenses may explain why PLPs are not causing widespread illness despite their toxic effects.

SourceJohns Hopkins Medicine·JournalFood and Chemical Toxicology·DateMay 30, 2014

Unlocking a mystery of thalidomide

Researchers at Tel Aviv University pinpoint a genetic regulator, p53 and MicroRNA34, as the cause of phocomelia syndrome in mice. The study provides new insights into the mechanisms of teratogens and may lead to better understanding of toxin-induced birth defects.

SourceAmerican Friends of Tel Aviv University·JournalArchives of Toxicology·DateMay 1, 2014
Rigol DP832 Triple-Output Bench Power Supply

Rigol DP832 Triple-Output Bench Power Supply powers sensors, microcontrollers, and test circuits with programmable rails and stable outputs.

Urban river pollutants suppress wild bird development

Research reveals that urban river pollutants are suppressing the health and development of wild birds, with chicks from contaminated rivers showing signs of underweight and hormonal imbalance. The study highlights the importance of monitoring bird populations as indicators of environmental well-being and food-web contamination.

SourceCardiff University·JournalEnvironmental Toxicology and Chemistry·DateApr 29, 2014

Variable gene expression in zebrafish

Researchers have identified various transcription mechanisms in zebrafish during embryonic development, which may help understand the formation of abnormalities or cancer. The study reveals that different starting points are used for transcription before and after activation of the embryonic genome.

SourceKarlsruher Institut für Technologie (KIT)·JournalNature·DateApr 28, 2014

Scientists at the UA make critical end-stage liver disease discovery

Scientists at the University of Arizona have discovered a molecular pathway that could help create new therapies for end-stage liver disease. By understanding how Nrf2 is suppressed in cirrhotic livers, researchers have identified Hrd1 as a key player in exacerbating the disease process.

SourceUniversity of Arizona·JournalGenes & Development·DateApr 25, 2014
Apple MacBook Pro 14-inch (M4 Pro)

Apple MacBook Pro 14-inch (M4 Pro) powers local ML workloads, large datasets, and multi-display analysis for field and lab teams.

Novel compound halts cocaine addiction and relapse behaviors

A novel compound, RO5263397, has been found to severely blunt a range of cocaine addiction behaviors, including relapse behavior, in animal studies. The compound targets TAAR1 receptor and shows promise as a potential lead compound for treating cocaine addiction.

SourceUniversity at Buffalo·JournalNeuropsychopharmacology·DateApr 23, 2014

Gate for bacterial toxins found

Freiburg researchers identify LRP1 as a key molecule that regulates the intake of toxic bacteria like Clostridium perfringens. This finding opens up new avenues for developing agents against clostridia and may lead to breakthroughs in treating diseases caused by these pathogens.

SourceUniversity of Freiburg·JournalProceedings of the National Academy of Sciences·DateApr 16, 2014

Beneficial organisms react differently to parasite drug

Research reveals that beneficial insects like dung beetles and flies react differently to ivermectin due to varying levels of sensitivity. This poses a risk to ecosystem functioning and highlights the need for more comprehensive safety tests to protect these organisms.

SourceUniversity of Zurich·JournalEvolutionary Applications·DateApr 14, 2014

Flipping the switch on scleroderma

Researchers at Michigan State University have identified the core signaling pathway that activates scleroderma and found chemical compounds that can turn it off. This discovery offers a new approach to treating the disease, which currently lacks effective treatments.

SourceMichigan State University·JournalJournal of Pharmacology and Experimental Therapeutics·DateApr 4, 2014
Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

More male fish 'feminized' by pollution on the Basque coast

Research reveals endocrine disrupting chemicals cause feminization in male thick-lipped grey mullet; 60-91% of males show vitellogenin and Aromatase Cyp19a1b gene expression, indicating feminization. Estuaries across Basque coast show high levels of pollutants contributing to the phenomenon.

SourceElhuyar Fundazioa·JournalMarine Environmental Research·DateMar 28, 2014

Significant progress toward creating 'benchtop human' reported

Scientists have developed a liver organ construct that responds to toxins like real human livers, paving the way for more accurate drug screening. The project aims to create interconnected human organ constructs using a miniaturized platform, potentially reducing costs and increasing efficiency in toxicology testing.

SourceVanderbilt University·DateMar 26, 2014
Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

Offshore dispersant data and decisions

Scientists have identified issues with standard toxicity testing data used to inform dispersant decisions, highlighting the need for more accurate and comparable data. The current practices do not adequately replicate field conditions, such as sea state and weather, or consider exposure durations and concentrations.

SourceSociety of Environmental Toxicology and Chemistry·JournalEnvironmental Toxicology and Chemistry·DateMar 6, 2014

Ecotoxicity: All clear for silver nanoparticles?

Recent research by Eawag and EPFL suggests that silver nanoparticles are not toxic to certain types of algae, which can survive even low concentrations of silver ions. However, this finding raises concerns about the potential impact on higher organisms, such as fish and other aquatic life.

SourceEcole Polytechnique Fédérale de Lausanne·JournalProceedings of the National Academy of Sciences·DateFeb 25, 2014
Sony Alpha a7 IV (Body Only)

Sony Alpha a7 IV (Body Only) delivers reliable low-light performance and rugged build for astrophotography, lab documentation, and field expeditions.

Food packaging chemicals may be harmful to human health over long term

Environmental scientists warn that synthetic food packaging chemicals can leach into foods and harm human health over the long term. The authors argue that little is known about their impact on chronic conditions like cancer, obesity, and neurological disorders.

SourceBMJ Group·JournalJournal of Epidemiology and Community Health·DateFeb 19, 2014

Chemical leak in W.Va. shows gaps in research, policy

A chemical leak in Charleston, W.Va., highlights the shortcomings of policies and research on thousands of chemicals. The incident led to 300,000 residents relying on bottled water due to the lack of complete toxicology studies on the leaked chemical, MCHM.

SourceAmerican Chemical Society·JournalChemical & Engineering News·DateFeb 19, 2014

Herbicides may not be sole cause of declining plant diversity

Researchers found that rare and common plant species had similar tolerances to widely used herbicides, suggesting a lack of persistent effects on plant communities. The study highlights the need for alternative strategies, such as preserving farmland habitats, in plant conservation efforts.

SourcePenn State·JournalEnvironmental Toxicology and Chemistry·DateFeb 4, 2014
GQ GMC-500Plus Geiger Counter

GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.

More illness from synthetic marijuana likely

A study published in the New England Journal of Medicine found a wide range of dangers associated with synthetic marijuana use. The substance has been linked to altered mental status, irregular heartbeat, seizures, and breathing difficulties, resulting in over 263 emergency room visits in Colorado alone.

SourceUniversity of Colorado Anschutz Medical Campus·JournalNew England Journal of Medicine·DateJan 22, 2014

Fetal exposure to nicotine increases long-term risk of obesity

Research reveals that fetal exposure to nicotine increases long-term risk of obesity and metabolic syndrome in offspring, as the liver produces more triglycerides. The study found that pregnant rats exposed to nicotine had an increased risk of developing these conditions later in life.

SourceUniversity of Western Ontario·JournalToxicology and Applied Pharmacology·DateJan 16, 2014

1 species, 2 outcomes: Team seeks source of body louse pathology

A new study found that the human body louse can transmit bacterial infections to humans, while the human head louse does not. The researchers discovered that several immune genes were regulated differently in head and body lice after infection with the bacteria, and the infection progressed further in body lice over time.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalInsect Molecular Biology·DateJan 10, 2014
Celestron NexStar 8SE Computerized Telescope

Celestron NexStar 8SE Computerized Telescope combines portable Schmidt-Cassegrain optics with GoTo pointing for outreach nights and field campaigns.

New compounds discovered that are hundreds of times more mutagenic

Scientists have discovered novel compounds produced by chemical reactions that are hundreds of times more mutagenic than their parent compounds. These newly found NPAHs were not previously known to exist and raise concerns about the health impacts of heavily-polluted urban air or dietary exposure.

SourceOregon State University·JournalEnvironmental Science & Technology·DateJan 6, 2014

Stimulating brain cells stops binge drinking, animal study finds

Researchers at the University at Buffalo used optogenetics to stimulate dopamine neurons, reducing binge drinking behavior in rats. The technique has potential applications for treating alcoholism, mental illnesses, and neurological diseases.

SourceUniversity at Buffalo·JournalFrontiers in Neuroscience·DateJan 6, 2014
Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

NIH program bridges gap to develop new therapeutics

The NIH Bridging Interventional Development Gaps (BrIDGs) program aims to advance treatments for acute radiation syndrome, brain injury from cardiac arrest, and beta thalassemia. BrIDGs supports expert contractors to perform pre-clinical services, with seven compounds licensed during or after development through the program.

SourceNIH/National Center for Advancing Translational Sciences (NCATS)·DateDec 17, 2013

A stop sign for cancer

Researchers identify two therapeutic targets to block cancer cell growth: PAK and STAT5. The shutdown of either target significantly delays leukemia progression in mice, offering new hope for cancer treatment.

SourceUniversity of Veterinary Medicine -- Vienna·JournalLeukemia·DateDec 13, 2013
Kestrel 3000 Pocket Weather Meter

Kestrel 3000 Pocket Weather Meter measures wind, temperature, and humidity in real time for site assessments, aviation checks, and safety briefings.

Database tracks toxic side effects of pharmaceuticals

Researchers from North Carolina State University have updated a toxicology database to track therapeutic drugs and their unintentional toxic effects. The database, which contains over 250,000 statements, helps investigators develop and test hypotheses about how drugs cause adverse events.

SourceNorth Carolina State University·JournalDatabase·DateDec 5, 2013