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Search results for “Toxicology”

1,000+ results for "Toxicology"

Drug-like compound stops thyroid overstimulation in early NIH studies

Researchers at the NIH have identified a compound that prevents overproduction of thyroid hormone, potentially improving treatment for Graves' disease. The receptor antagonist has not yet been tested in animals or people and still needs to undergo safety testing before potential human trials.

SourceNIH/National Institute of Diabetes and Digestive and Kidney Diseases·JournalThe Journal of Clinical Endocrinology & Metabolism·DateDec 1, 2010

Chemicals' study pinpoints threat to workers' lungs

A University of Edinburgh study reveals that nanoparticles used in various products can cause distinct lung injuries in rats, with some triggering asthmatic reactions and others leading to severe damage. Researchers emphasize the need for improved testing methods to assess nanoparticle risks.

SourceUniversity of Edinburgh·JournalEnvironmental Health Perspectives·DateNov 17, 2010

Nature honors outstanding faculty mentor

Chris Wood, a professor at McMaster University and University of Miami, is recognized for his immense impact on the field as a scientist and mentor. He has attracted over 100 postdocs and grad students to his labs, with many now holding faculty positions worldwide.

SourceUniversity of Miami Rosenstiel School of Marine, Atmospheric, and Earth Science·DateNov 12, 2010
Apple iPhone 17 Pro

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

WHO pesticide regulations should be based on toxicity in humans, not rats

A study published in PLoS Medicine found that agricultural pesticide poisoning is the single most common means of suicide worldwide, with significant variation in case fatality rates among different pesticides. The authors argue that basing regulation on human toxicity, rather than animal data, could help reduce suicides and improve pu...

SourcePLOS·JournalPLOS Medicine·DateOct 26, 2010

Mouse brain seen in sharpest detail ever

Researchers can now study the mouse brain in unprecedented detail, thanks to a new atlas that provides a 3D reference point for genetics, toxicology, and drug discovery. The atlas features images with resolutions up to 21 microns, eliminating variability issues associated with conventional histology.

SourceDuke University Medical Center·JournalNeuroImage·DateOct 25, 2010

Center to study effects of plastics chemicals on children's health

A new research center will study the effects of bisphenol A (BPA) and phthalates on infant and adolescent development, cognition, and behavior. The center aims to determine if exposure to these chemicals alters hormone signaling and affects sex differences in brain development and behavior.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·DateOct 21, 2010
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.

Mounting research shows increased health risks from volcanic air pollution

A recent study published in the Journal of Toxicology and Environmental Health found that exposure to Kilauea's vog increases health risks, including headaches, sore throats, and acute airway problems. Children and adolescents are particularly vulnerable due to their nose-breathing habits.

SourceUniversity of Nevada, Reno·JournalJournal of Toxicology and Environmental Health·DateOct 19, 2010
Apple AirPods Pro (2nd Generation, USB-C)

Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

NIEHS to fund $36 million in worker safety training

The National Institute of Environmental Health Sciences (NIEHS) has awarded $36 million in grants to support worker safety training programs. These programs aim to reduce exposure to hazards during disaster response, cleanup, and chemical emergency responses.

SourceNIH/National Institute of Environmental Health Sciences·DateSep 23, 2010

Scientists uncover process enabling toxoplasmosis parasite to survive homelessness

Toxoplasma gondii parasite triggers stress response mechanism to survive outside host cells, enabling it to find new hosts and infect them. Researchers identify critical pathway that helps the parasite overcome environmental stresses, offering potential new treatments for toxoplasmosis infection.

SourceIndiana University School of Medicine·JournalProceedings of the National Academy of Sciences·DateSep 20, 2010

Drug holds promise to halt debilitating condition of diabetes

Researchers at the University of Kansas have developed a drug that can stop and reverse diabetic peripheral neuropathy, a debilitating condition leading to nerve death and amputations. The compound, KU-32, has been shown to inhibit molecular chaperones and restore sensory neuron function.

SourceUniversity of Kansas·JournalASN NEURO·DateSep 10, 2010

Hair provides proof of the link between chronic stress and heart attack

Researchers at the University of Western Ontario have discovered a link between chronic stress and heart attacks using hair cortisol levels as a biological marker. The study found that heart attack patients had higher cortisol levels in their hair samples compared to control group, suggesting chronic stress as a contributing factor.

SourceUniversity of Western Ontario·JournalStress·DateSep 3, 2010
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.

Fertilizer chemicals linked to animal developmental woes

New research from North Carolina State University reveals that fertilizer chemicals can be converted into toxic nitric oxide by water fleas, causing developmental and reproductive problems. The study's findings raise concerns about the impact of these chemicals on other organisms and highlight the need for further research.

SourceNorth Carolina State University·JournalPLOS ONE·DateAug 27, 2010

Atrazine causes prostate inflammation in male rats and delays puberty

A new study found that prenatal exposure to low doses of atrazine causes prostate inflammation and delays puberty in male rats. The incidence of prostate inflammation increased significantly with the strength of the doses, while puberty was also delayed in animals exposed to atrazine.

SourceNIH/National Institute of Environmental Health Sciences·JournalReproductive Toxicology·DateAug 24, 2010

New study sheds light on painkilling system in brain

Researchers have found that boosting brain levels of 2-AG, a natural painkiller, soon leads to loss of its therapeutic effect due to receptor downregulation. This discovery has implications for drug development and basic science, suggesting that more modest elevations in 2-AG may produce sustained pain relief.

SourceScripps Research Institute·JournalNature Neuroscience·DateAug 24, 2010

New breast cancer committee to establish federal research agenda

A newly formed advisory committee will review all federal breast cancer research efforts and develop recommendations for improving existing programs. The committee aims to expand opportunities for collaborative, multi-disciplinary research and advance the understanding of links between environment, genes, and health.

SourceNIH/National Institute of Environmental Health Sciences·DateAug 16, 2010
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.

American Society for Microbiology honors Thomas J. Walsh

Dr. Thomas J. Walsh, Director of the Transplantation-Oncology Infectious Diseases Program at Weill Cornell Medical College, has been selected as the 2010 laureate of the sanofi-aventis ICAAC Award for his groundbreaking work on antifungal pharmacology and therapeutics.

SourceAmerican Society for Microbiology·DateAug 11, 2010

Gender-bending fish on the rise in southern Alberta

A study by University of Calgary researchers reveals a significant increase in female fish population and feminization of males in two Southern Alberta rivers. The presence of man-made and naturally occurring chemicals, such as synthetic estrogens and bisphenol A, is linked to the sex ratio imbalance.

SourceUniversity of Calgary·JournalEnvironmental Toxicology and Chemistry·DateJul 29, 2010
Fluke 87V Industrial Digital Multimeter

Fluke 87V Industrial Digital Multimeter is a trusted meter for precise measurements during instrument integration, repairs, and field diagnostics.

Puffing in public housing poses serious health risks to tenants

Research shows that public housing residents are exposed to toxins from tobacco smoke, even if they don't smoke themselves. The authors argue that a ban on smoking in public housing units is necessary to protect the health of all residents, particularly children, who are more vulnerable to the effects of second-hand smoke.

SourceMassachusetts General Hospital·JournalNew England Journal of Medicine·DateJun 17, 2010

New evidence that smokeless tobacco damages DNA and key enzymes

Smokeless tobacco affects enzyme function and genetic material in liver, kidney, and lungs, altering hormone production and potentially toxic substance breakdown. The study's findings highlight the need for greater awareness of smokeless tobacco's risks, particularly among youth and vulnerable populations.

SourceAmerican Chemical Society·JournalChemical Research in Toxicology·DateJun 16, 2010
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.

Leading journal makes Exxon Valdez and other oil-related studies available free

The Rice University-led Environmental Toxicology and Chemistry journal has released a special virtual edition making 25 previously published studies on the Exxon Valdez oil spill available for free. The collection provides insights into the occurrence, fate, and effects of oils and oil spills in the environment.

SourceRice University·JournalEnvironmental Toxicology and Chemistry·DateMay 27, 2010

Better animal-free test for chemicals that can cause contact dermatitis

Scientists developed a fast, simple and inexpensive test for detecting chemicals that cause contact dermatitis, eliminating the need for animal testing. The test uses nitrobenzenethiol as a skin protein surrogate, producing positive results for known skin irritants and negative results for non-irritating substances.

SourceAmerican Chemical Society·JournalChemical Research in Toxicology·DateMay 26, 2010
Meta Quest 3 512GB

Meta Quest 3 512GB enables immersive mission planning, terrain rehearsal, and interactive STEM demos with high-resolution mixed-reality experiences.

New technique enables drug tests via exhaled breath

Researchers at Karolinska Institutet developed a new method for collecting narcotic substances from exhaled breath, which was successful in detecting amphetamine and metamphetamine in all cases of emergency care patients.

SourceKarolinska Institutet·JournalJournal of Analytical Toxicology·DateMay 19, 2010

New research reveals Hurricane Katrina's impact on ecological and human health

The study found elevated concentrations of lead, arsenic, and other chemicals in New Orleans' soil and flood sediments, particularly in disadvantaged areas. The research highlights the need for long-term monitoring programs to establish baseline concentrations and distributions of contaminants in the environment.

SourceWiley·JournalEnvironmental Toxicology and Chemistry·DateMay 13, 2010

'Epigenetic' concepts offer new approach to degenerative disease

Research suggests that epigenetics plays a key role in the development of degenerative diseases. Environmental influences can alter gene expression, which can be passed on to offspring and impact life and death. HDAC inhibitors, found in foods like broccoli and garlic, may help prevent cancer by silencing tumor suppressor genes.

SourceFederation of American Societies for Experimental Biology·DateApr 28, 2010
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.

NIH-led interagency group identifies research needs to study climate change and human health impacts

A recent NIH-led interagency group report highlights 11 key categories of diseases affected by climate change, including respiratory problems, mental health issues, and cardiovascular disease. The report provides a starting point for federal research to better understand the impact of climate change on human health.

SourceNIH/National Institute of Environmental Health Sciences·JournalEnvironmental Health Perspectives·DateApr 21, 2010

Wildlife still exposed to Exxon Valdez oil 20 years after disaster

Scientists have discovered lingering oil from the 1989 Exxon Valdez spill is still being ingested by wildlife in Prince William Sound. The study used biomarkers to reveal long-term exposure to oil in harlequin ducks, demonstrating that consequences of oil spills can last for decades.

SourceWiley·JournalEnvironmental Toxicology and Chemistry·DateApr 14, 2010

Targeting the blood-brain barrier may delay progression of Alzheimer's disease

Researchers have discovered that targeting the blood-brain barrier can slow the accumulation of a protein associated with Alzheimer's disease. The study shows that activating a certain receptor in the brain can increase the expression of a blood-brain barrier protein that transports beta-amyloid out of the brain.

SourceNIH/National Institute of Environmental Health Sciences·JournalMolecular Pharmacology·DateApr 12, 2010
GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

University of Arizona Superfund Research Program receives $14 million

The University of Arizona Superfund Research Program will receive $14 million to investigate metal-laden dust, water contamination and their health effects. The program aims to minimize mine dust and water leachate, stabilize arsenic residuals, and monitor pollutant distribution in air and water.

SourceUniversity of Arizona, College of Pharmacy·DateApr 12, 2010

Fetal alcohol spectrum disorder linked to high prevalence of epilepsy

Children with fetal alcohol spectrum disorder (FASD) are at a high risk of developing epilepsy or seizure history, according to a new study. Researchers found that six percent of individuals with FASD developed epilepsy and 12 percent had one or more seizures in their life.

SourceAlcoholism: Clinical & Experimental Research·DateApr 5, 2010
Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

Carbon nanostructures -- elixir or poison?

Researchers found that certain buckyball configurations, such as the tris configuration, caused premature senescence in human skin cells. This could lead to disease development if not properly understood. The study provides early foundations for worker protection and highlights the need for federal regulations on nanomaterial use.

SourceDOE/Los Alamos National Laboratory·JournalToxicology and Applied Pharmacology·DateMar 31, 2010

Chemical cocktail affects humans and the environment

Researchers found that environmental chemicals form a complex cocktail, leading to greater toxicity than individual chemicals. The EU recommends implementing guidelines for managing the chemical cocktail effect to assess risks to humans and the environment.

SourceUniversity of Gothenburg·DateMar 28, 2010

MRC scientists announce advance in understanding body's natural defenses

Researchers at the University of Leicester have made a new discovery about how the body fights certain types of cancer and autoimmune diseases. A newly discovered protein, HVCN1, regulates antibody production and can be targeted for therapies to treat conditions like lupus and rheumatoid arthritis.

SourceUniversity of Leicester·JournalNature Immunology·DateMar 11, 2010
Creality K1 Max 3D Printer

Creality K1 Max 3D Printer rapidly prototypes brackets, adapters, and fixtures for instruments and classroom demonstrations at large build volume.

Older dental fillings contain form of mercury unlikely to be toxic

A new study reveals that aged dental fillings may contain a non-toxic form of mercury. Researchers found that the surface forms of mercury in dental amalgam change over time, with most mercury lost through evaporation or exposure to hygiene products.

SourceAmerican Chemical Society·JournalChemical Research in Toxicology·DateJan 27, 2010

Inflammation 'on switch' also serves as 'off switch'

A study by NC State researchers found that a protein called TAB2 activates inflammation but also brings together molecules to turn it off. This finding challenges previous understanding of the protein's role in immune-system responses.

SourceNorth Carolina State University·JournalJournal of Biological Chemistry·DateJan 21, 2010

University of Plymouth invests in dental research

The University of Plymouth is investing £500,000 in joint research with the Peninsula Dental School to tackle key areas in oral health. The research will focus on statistical epidemiology, virtual reality, and nanotechnology, aiming to ease dental anxiety and develop more aesthetically pleasing materials.

SourceThe Peninsula College of Medicine and Dentistry·DateJan 14, 2010

Chlorophylls effective against aflatoxin

A new study has found that chlorophyll and its derivative chlorophyllin are effective in limiting the absorption of aflatoxin in humans. The Phase 0 approach allows for the measurement of minute amounts of aflatoxin, revealing rapid absorption that is significantly limited after treatment with chlorophyll and chlorophyllin.

SourceOregon State University·JournalCancer Prevention Research·DateDec 29, 2009

Older dental fillings contain form of mercury unlikely to be toxic

A new study reveals that older dental fillings, containing beta-mercuric sulfide or metacinnabar, are unlikely to be toxic. The surface forms of mercury in these fillings lose up to 95% of their mercury over time, making human exposure less concerning.

SourceAmerican Chemical Society·JournalChemical Research in Toxicology·DateDec 9, 2009
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.

Smokeless tobacco called 'moist snuff' is contaminated with harmful substances

A study by Irina Stepanov and colleagues found that moist snuff contains at least eight polycyclic aromatic hydrocarbons, nine of which are classified as carcinogens. The presence of these toxicants in smokeless tobacco may contribute to increased risk of cancer and other health issues.

SourceAmerican Chemical Society·JournalChemical Research in Toxicology·DateDec 2, 2009

Cutting greenhouse pollutants could directly save millions of lives worldwide

A series of studies published in The Lancet show that cutting greenhouse gases can directly reduce premature deaths and improve global health, particularly in low-income countries. The research highlights the co-benefits of tackling climate change by reducing air pollution and improving public health.

SourceUniversity of California - Berkeley·JournalThe Lancet·DateNov 25, 2009