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Search results for “Toxicology”

1,000+ results for "Toxicology"

PFOS and PFOA exposure associated with lower birth weight and size

Exposure to PFOS and PFOA in utero is statistically associated with lower head circumference and body weight at birth, according to a Johns Hopkins Bloomberg School of Public Health analysis of nearly 300 umbilical cord blood samples. The study found no associations between these compounds and length or gestational age.

SourceJohns Hopkins Bloomberg School of Public Health·JournalEnvironmental Health Perspectives·DateAug 17, 2007

A pioneering study opens roads for tailor-made antidepressants

A pioneering study has confirmed the relation between allele s in the serotonin transporter gene and exposure to threatening life events in the onset of depression. The research predicts a personalized approach to treating depression by tailoring antidepressant treatment to an individual's genetic configuration and environmental factors.

SourceUniversity of Granada·JournalMolecular Psychiatry·DateAug 6, 2007
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.

Cigarette smoke alters DNA in sperm, genetic damage could pass to offspring

New research shows that cigarette smoke can cause changes in the DNA sequence of sperm cells, altering the genetic composition of offspring. The study found that male mice exposed to cigarette smoke had higher rates of genetic mutations than non-smoking mice, with the duration of exposure increasing the likelihood of damage.

SourceAmerican Association for Cancer Research·JournalCancer Research·DateJun 1, 2007

An apple peel a day might keep cancer at bay

Cornell researchers identified a dozen triterpenoids in apple peel with potent anti-proliferative activities against human liver, colon, and breast cancer cells. The compounds may be responsible for the anti-cancer properties of whole apples.

SourceCornell University·JournalJournal of Agricultural and Food Chemistry·DateJun 1, 2007

Mercury's link to heart disease begins in blood vessel walls

Mercury has been shown to activate phospholipase D enzyme in cells lining blood vessels, causing damage and contributing to vascular disorders. Chelation therapy and antioxidants have been found to suppress this activity, suggesting potential preventive measures against mercury-induced cardiovascular disease.

SourceOhio State University Wexner Medical Center·JournalInternational Journal of Toxicology·DateMay 30, 2007

New study: Pycnogenol reduces heart failure

A new study shows Pycnogenol supplementation can prevent damage to the heart caused by high blood pressure and hypertension. The natural pine bark extract enhanced collagen connective tissues in cardiac tissue, resulting in stronger cardiac chambers.

SourceMWW Group·JournalCardiovascular Toxicology·DateMay 16, 2007

Hexavalent chromium in drinking water causes cancer in lab animals

Researchers discovered that hexavalent chromium causes cancer in laboratory animals when consumed in drinking water, leading to malignant tumors. The study found significant increases in tumors at high doses, highlighting the chemical's potential health risks.

SourceNIH/National Institute of Environmental Health Sciences·DateMay 16, 2007
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.

Asexual worm quickly adapts to soil contamination

Researchers found that an asexual nematode adapted rapidly to soil contamination, living longer and laying more eggs in polluted conditions. The study highlights the importance of considering various research disciplines for understanding stress responses and developing protection strategies.

SourceNetherlands Organization for Scientific Research·DateMay 14, 2007

Prenatal toxicity linked to immune dysfunctions in later life

Research found that prenatal toxicity is associated with immunological damage leading to chronic diseases such as asthma, cancer, and autoimmunity. The study identified several substances, including herbal and fungal chemicals, that may help restore inflammatory cell regulation.

SourceCornell University·JournalCurrent Medicinal Chemistry·DateMay 2, 2007

Collapse of teenage clubber highlights dangers of new drug

A teenage girl in London collapsed in a nightclub after taking 1-benzylpiperazine tablets, highlighting the dangers of this new drug. Analysis revealed the presence of the substance in her blood and seized tablet, which was linked to similar symptoms in seven other patients.

SourceThe Lancet_DELETED·JournalThe Lancet·DateApr 26, 2007

PFOA and PFOS detected in newborns

Researchers detected PFOA and PFOS in nearly all newborn umbilical cord blood samples, with concentrations lower than those found in adults. The study suggests a strong association between the two compounds, despite their different industrial sources.

SourceJohns Hopkins Bloomberg School of Public Health·JournalEnvironmental Science & Technology·DateApr 24, 2007
Apple iPhone 17 Pro

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

New diagnostic technologies offer non-invasive means

Researchers have developed tests that diagnose, predict or monitor cancer risks without invasive tissue sampling, benefiting underserved populations. DNA methylation mapping from exhaled breath can identify early-stage lung cancer, while an oral rinse test detects head and neck squamous cell carcinoma

SourceAmerican Association for Cancer Research·DateApr 15, 2007

Common fungicide causes long-term changes in mating behavior

A study by researchers at the University of Texas at Austin found that female rats can detect changes in males' germline cells due to exposure to vinclozolin, leading them to avoid mating with those males. This avoidance behavior is linked to an epigenetic change that affects the male's fertility.

SourceUniversity of Texas at Austin·JournalProceedings of the National Academy of Sciences·DateMar 26, 2007

When it comes to risk, not all nanomaterials are created equal

Researchers at Rensselaer Polytechnic Institute found that carbon nanotubes inhibited growth in mammalian cells but sustained bacterial growth, highlighting the need for further research on nanotechnology's environmental impacts. The studies suggest different nanomaterials have varying effects on human health and the environment.

SourceRensselaer Polytechnic Institute·DateMar 25, 2007
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.

Study describes action of estrogen in protecting bone

Researchers at the University at Buffalo have discovered that estradiol helps maintain bone density by stopping the activation of caspase-3, an enzyme involved in osteoblast apoptosis. This finding suggests that estrogens may prevent both bone loss and fractures through anti-apoptotic effects on bone cells.

SourceUniversity at Buffalo·DateMar 23, 2007

Hersh receives IADR Research Award in Pharmacology

Dr. Elliot V. Hersh has been recognized for his research on non-steroidal anti-inflammatory drugs and local anaesthetics used in dentistry, including the approval of articaine by the US FDA. He is a prominent figure in the IADR Pharmacology, Therapeutics & Toxicology Group, having served in leadership roles and organized symposia.

SourceInternational Association for Dental, Oral, and Craniofacial Research·DateMar 21, 2007

David H. Baker to be honored for work in animal and nutritional science

David H. Baker, a renowned expert in animal and nutritional sciences, will be honored with the Charles A. Black Award for his outstanding achievements in the field. His research has led to significant discoveries about amino acid metabolism, toxicology, and nutrient needs of humans and animals.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·DateFeb 22, 2007
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.

Environmental toxicants like lead, mercury target stem cells

A study published in PLoS Biology finds that low levels of toxic substances cause critical stem cells to prematurely shut down. The research identifies a common molecular trigger for the effects of toxicant exposure, offering new insights into damage caused by toxicant exposure and potential methods to evaluate chemical safety.

SourceUniversity of Rochester Medical Center·JournalPLOS Biology·DateFeb 5, 2007

UK-India success for University of Nottingham

The University of Nottingham has been awarded a £300,000 grant to collaborate with Indian researchers on a four-year project exploring mixture toxicity in living organisms. The project aims to develop a mathematical model predicting how organisms respond to chemical pollution.

SourceUniversity of Nottingham·DateFeb 2, 2007

Rats on a road trip reveal pollution-heart disease risk

A study published in Inhalation Toxicology found that rats exposed to highway pollution showed a significant drop in heart rate and disruption of the autonomic nervous system. This discovery highlights the potential risks of air pollution on cardiovascular health, particularly for individuals with pre-existing heart disease.

SourceUniversity of Rochester Medical Center·DateJan 31, 2007

Lavender and tea tree oils may cause breast growth in boys

Researchers found an association between the use of products containing lavender oil and/or tea tree oil and prepubertal gynecomastia in young males. Laboratory studies confirmed that these oils can mimic estrogen effects and inhibit androgen effects, leading to breast tissue growth.

SourceNIH/National Institute of Environmental Health Sciences·JournalNew England Journal of Medicine·DateJan 31, 2007
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.

Repetitive motion speeds nanoparticle uptake

Repetitive motion speeds nanoparticle uptake through the skin, according to a study by researchers at Rice University. The team found that flexing the skin increases nanoparticle penetration and depth, with more buckyballs taken up after 24 hours.

SourceRice University·JournalNano Letters·DateJan 4, 2007

New study shows promise of toxicogenomics in environmental monitoring

A new study by UC Berkeley researchers found specific gene expression changes in Daphnia magna water fleas in response to copper, cadmium, and zinc contamination. These changes suggest a possible role for toxicogenomics in assessing environmental toxicity.

SourceUniversity of California - Berkeley·JournalEnvironmental Science & Technology·DateDec 20, 2006
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.

Special ES&T issue examines effects of emerging contaminants on people, planet

The American Chemical Society's Environmental Science & Technology journal highlights emerging contaminants such as nanoparticles, which can damage DNA, and polybrominated diphenyl ethers (PBDEs), which accumulate in aquatic food chains. These substances can have severe consequences for human health and the environment.

SourceAmerican Chemical Society·JournalEnvironmental Science & Technology·DateNov 30, 2006

Scientists set 'Five Grand Challenges' for nanotechnology risk research

Fourteen top scientists propose five critical challenges for nanotechnology risk research, including identifying potential health and environmental hazards. They will discuss their recommendations at a live webcast on November 16th, 2006.

SourceWoodrow Wilson International Center for Scholars/Science and Technology Innovation Program·JournalNature·DateNov 15, 2006

ICON issues survey of nanotechnology practices

A comprehensive survey of nanotechnology workplace safety practices found that many companies and laboratories are using conventional EHS practices despite the potential for nanoparticles to pose specific environmental and health risks. The survey, conducted by Rice University's International Council on Nanotechnology, collected data f...

SourceRice University·DateNov 13, 2006
Meta Quest 3 512GB

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

Mouse DNA to aid biomedical research

Researchers have sequenced the DNA of 15 commonly used mouse strains, discovering over 8.3 million single nucleotide polymorphisms. This data will help understand complex genetic traits and their relation to human diseases, such as Parkinson's, cancer, and asthma.

SourceNIH/National Institute of Environmental Health Sciences·DateOct 25, 2006

Secrets revealed in sequencing of honey bee genome

Researchers have sequenced the honey bee genome, revealing insights into its remarkable social behavior and highly developed sense of smell. The study found that honey bees originated in Africa, have a unique set of genes related to odorant receptors, and exhibit complex social cues.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalNature·DateOct 25, 2006

USC groups present at Neuroscience 2006

Researchers at USC have made significant discoveries in the fight against Alzheimer's disease. A study found that hormone replacement therapy may lower Alzheimer's risk by as much as 50 percent in younger women. Additionally, a new treatment approach for ALS and Parkinson's disease has shown promising results, with exercise interventio...

SourceUniversity of Southern California·DateOct 17, 2006

UF experts: Decaffeinated coffee is not caffeine-free

A new study by University of Florida researchers found that almost all decaffeinated coffee contains some measure of caffeine. This can be a concern for people with medical conditions like hypertension or anxiety disorders who are advised to cut their caffeine intake.

SourceUniversity of Florida·JournalJournal of Analytical Toxicology·DateOct 10, 2006

Study of toxins in Houston air warrants new standards

A Rice University study recommends lowering Houston's toxic air pollutant levels due to high health risks. The report proposes a new set of air quality standards based on the underlying toxicology of four pollutants, including benzene and formaldehyde.

SourceRice University·DateSep 27, 2006
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.

Safer suntans through science

Scientists at the University of Kentucky are testing a lotion that stimulates melanin production, reducing UV damage and increasing skin protection. The treatment has promising results, offering an alternative to traditional sunless tanning products and tanning beds.

SourceUniversity of Kentucky·JournalNature·DateSep 26, 2006

Metals in China: Protecting the environment

A new research project in China aims to develop robust scientific guidelines for safe levels of copper and nickel in Chinese soils. The project will combine data from various sources, including European Union and Australian research programs, to explain toxicity across a wide range of environments.

SourceCSIRO Australia·DateSep 18, 2006

Metals in China: Protecting the environment

A new international collaborative research project in China aims to develop robust scientific guidelines for safe levels of copper and nickel in soils. The project will combine data from European Union and Australian research programs with local Chinese data to explain toxicity across a wide range of environments.

SourceCSIRO Australia·DateSep 13, 2006

Study confirms ammunition as main source of lead poisoning in condors

A study led by University of California, Santa Cruz researchers has confirmed that bullet fragments and shotgun pellets are the principal sources of lead poisoning in California condors. The study found that 77% of birds tested had lead levels linked to ammunition, highlighting the need for action to reduce lead exposure.

SourceUniversity of California - Santa Cruz·JournalEnvironmental Science & Technology·DateAug 30, 2006
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.

Chronic alcohol exposure can affect brain protein expression

Researchers found five proteins overexpressed and three underexpressed in response to chronic alcohol exposure, affecting programmed cell death, cholesterol balance, and signal transduction. The study suggests a progressive increase in behavior disruption with prolonged exposure, highlighting the potential for new therapeutic targets.

SourceUniversity at Buffalo·JournalEuropean Journal of Pharmacology·DateAug 29, 2006

Sydney harbor's seaweed a deadly diet for sea creatures

A new study found that Sydney harbor's seaweeds contain high levels of toxic heavy metals, harming small animals that eat them. Up to three-quarters of juvenile crustaceans are killed when exposed to copper, highlighting the potential consequences for marine food chains.

SourceUniversity of New South Wales·JournalEnvironmental Toxicology and Chemistry·DateAug 20, 2006

Drivers on cell phones are as bad as drunks

A recent study published by University of Utah psychologists found that drivers using handheld or hands-free cellular phones are as impaired as drunken drivers. The study's lead author, David Strayer, suggests that legislators should consider outlawing cell phone use while driving to address driver distraction.

SourceUniversity of Utah·DateJun 29, 2006
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.

Meechan receives IADR Research Award in Pharmacology

Dr. Meechan has received the IADR Pharmacology, Therapeutics, & Toxicology Research Award for his contributions to dental care management and medically compromised patients. The award recognizes his research interests in local anesthesia and pain control.

SourceInternational Association for Dental, Oral, and Craniofacial Research·DateJun 28, 2006

U. of Colorado team solves mystery of carcinogenic mothballs

The research team showed that naphthalene can block enzymes that initiate programmed cell death, leading to unchecked cellular proliferation and cancer. The study used a common worm known as C. elegans to develop a systematic way to screen potential cancer-causing chemicals in humans.

SourceUniversity of Colorado at Boulder·JournalNature Chemical Biology·DateJun 20, 2006

Dartmouth heart researchers discover new defect in artery growth

Researchers found that an intracellular protein called synectin is a key regulator of arterial growth, impairing development when disrupted. This discovery could lead to new therapeutic approaches for coronary artery disease and vascular biology research.

SourceThe Geisel School of Medicine at Dartmouth·JournalDevelopmental Cell·DateJun 5, 2006
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.

Alveolar type I cells

Researchers have identified alveolar type I cells as potential diagnostic markers for acute lung injury. The study's findings suggest that these cells may play a crucial role in the development of pulmonary diseases.

SourceBlackwell Publishing Ltd.·JournalThe Journal of Physiology·DateMay 5, 2006

DARPA grant supports research toward realizing tissue regeneration

Researchers are studying salamanders and MRL mice to identify the types of cells, molecular signals, genes, and cellular scaffolding required for regenerative cell growth. They hope to develop a blueprint for regenerative growth, which could help overcome the formation of scar tissue in humans.

SourceUniversity of Pittsburgh Medical Center·DateMay 2, 2006

Contaminants linked to sturgeon decline in Columbia river

Researchers found high levels of toxic contaminants in white sturgeon from areas above Bonneville Dam, leading to reduced growth and reproductive fitness. The contamination is thought to be accumulating behind dams, posing a threat to the fish's survival and ecosystem balance.

SourceOregon State University·JournalEnvironmental Health Perspectives·DateApr 7, 2006
Celestron NexStar 8SE Computerized Telescope

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

One gene provides fruit fly both antenna and color vision

A recent study reveals that a single gene, spineless, controls the development of both the fruit fly's antenna and its color vision. The research, led by Claude Desplan and Ian Duncan, uses Drosophila fruit flies to demonstrate how this gene regulates the retina's structure and function.

SourceWashington University in St. Louis·JournalNature·DateApr 4, 2006

Sodas and energy drinks can supply a surprising caffeine jolt

A recent study found that many sodas and energy drinks contain high levels of caffeine, posing health risks for certain individuals. The FDA recommends a maximum of 65 milligrams per serving, but some energy drinks have up to 141 milligrams, more than double the limit.

SourceUniversity of Florida·JournalJournal of Analytical Toxicology·DateMar 14, 2006

Michigan State research sheds new light on health dangers of nanoparticles

Research by Michigan State University reveals that combustion-derived nanoparticles can cause nasal airway inflammation, rhinitis, and epithelial cell injury. The study's findings suggest that the nose is a potential target organ for nanoparticle toxicity, highlighting the need for better occupational and environmental exposure limits.

SourceMichigan State University·DateFeb 17, 2006