Articles tagged with Pesticides
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.
NYU researchers have engineered a protein that can detoxify organophosphates, commonly used in pesticides and warfare agents. The protein has increased stability and half-life, making it suitable for therapeutic applications, including preventing nerve damage from gas attacks or pesticide exposure.
Researchers found that currently used pesticides are not biomagnified in Arctic food chains. Instead, Arctic mammals metabolize these pesticides, preventing their accumulation in the ecosystem.
A large-scale study found that organic foods have higher antioxidant levels and lower pesticide residues compared to conventional counterparts. The research team analyzed 343 peer-reviewed publications on the topic and discovered significant nutritional benefits from organic farming.
Researchers will investigate a gut parasite that negatively impacts honey bees, analyze pesticide effects, and model ecosystem stability in response to extinctions and invasions.
The Yangambi km5 banana variety produces toxic metabolites that kill the nematode Radopholus similis, a major roundworm pest. This discovery could lead to the development of edible and pest-resistant banana varieties, as well as new pesticides against nematodes.
Scientists developed a wearable wristband that can detect and quantify a wide range of toxic substances, including pesticides and industrial chemicals. The silicone-based band can absorb over 1,000 chemicals, providing a valuable tool for determining individual exposure and risk.
The Review finds that the number of recognized chemical causes of neurodevelopmental disorders has doubled, and the list of unregulated chemicals has expanded. Stringent controls could generate billions in savings and improve childhood health outcomes.
A new study by UCLA researchers found that certain pesticides inhibit an enzyme called ALDH, which converts toxic aldehydes into less harmful agents, increasing the risk of Parkinson's disease. The study identified 11 pesticides that increase the risk, particularly in individuals with a common genetic variant of the ALDH2 gene.
Researchers found that pesticides inhibiting aldehyde dehydrogenase enzyme increase Parkinson's disease risk, especially in people with ALDH2 gene variant. Exposure to multiple pesticides at work and home also increases risk.
A Rutgers University study links pesticide exposure to increased Alzheimer's disease risk, particularly in those over 60. Higher levels of the DDT compound were found in late-onset Alzheimer's patients' blood compared to controls.
Researchers found significantly higher levels of DDE, a long-lasting metabolite of DDT, in Alzheimer's patients compared to healthy controls. Elevated DDE levels increased the risk of Alzheimer's by a factor of four.
A new study by Royal Holloway University of London found that prolonged exposure to a widely used pesticide causes smaller worker bees. The research revealed that the pesticide reduces the size of individual bees produced by a colony, potentially impacting colony success.
A new detection method and model enable determinations of pesticide residues' biodegradability. The study classifies residues into three types based on their release mechanisms, allowing for more accurate evaluation of pesticide environmental impact.
A Fred Hutchinson Cancer Center-led study has found a link between two organochlorine pesticides and an increased risk of endometriosis. Women with higher exposures to these pesticides had a 30- to 70-percent increase in endometriosis risk, according to the study.
A Stanford-led study of pesticide exposure and hypospadias in male infants found only weak evidence of an association. The researchers analyzed thousands of birth records and commercial pesticide application records for eight counties in California's Central Valley, identifying 15 chemicals with possible associations with the condition.
Research found that pesticides can subtly impact individual bees, leading to colony failure. The study provides an important breakthrough in understanding the causes of declining bee populations and offers insights for policymakers.
Researchers at the University of Missouri have developed a reliable method for detecting silver nanoparticles in fresh produce and other food products. The study found that smaller particles can penetrate skin and reach sensitive sites after digestion, posing a potential health risk to consumers.
A new Dartmouth study finds that many people fear low amounts of chemicals in their food, despite being inherently harmless and often beneficial. The study argues that regulators should focus on pathogens and bacteria rather than pesticides and synthetic chemicals.
New technology for creating pesticides and pest-resistant crops raises concerns about harm to desirable insects and ecological disruption. Researchers suggest designing chemicals that minimize impact on non-target species and evaluating real-life situations.
A new study emphasizes the importance of reducing pesticide reliance and adopting integrated pest management (IPM) strategies to minimize exposure in children. The research found pesticides in all homes studied, with traditional pesticides ineffective in controlling infestations.
Infant girls exposed to high levels of DDT while pregnant are three times more likely to develop hypertension as adults. Hypertension is a major risk factor for heart disease, which claims millions of lives worldwide.
Researchers found that contaminated water used to dilute pesticides can carry human noroviruses, potentially contaminating the food chain. The study suggests that pesticide application may be a microbiological risk factor for public health.
Researchers found that benomyl exposure can trigger a cascade of cellular events leading to Parkinson's disease, even in individuals without prior pesticide exposure. The study suggests developing new drugs to protect ALDH activity may slow disease progression.
A recent study published by the American College of Allergy, Asthma and Immunology suggests that pesticides used for water purification can lead to food allergies. The research found a correlation between high levels of dichlorophenol-containing pesticides and weakened food tolerance in individuals.
Research found that chronic exposure to two pesticides impaired natural foraging behaviour and increased worker mortality in bumblebee colonies. This led to significant reductions in colony success and increased rates of colony failure.
Children exposed to piperonyl butoxide (PBO) in the womb have a heightened risk of noninfectious cough at ages 5 and 6. The study suggests that toxic exposures during pregnancy can damage the respiratory system, leading to symptoms like childhood cough.
The Stanford study analyzed 237 studies comparing organic and conventional foods, finding no significant difference in health benefits or nutrient content. Organic produce had a lower risk of pesticide contamination, but pesticide levels were generally within safe limits.
A Stanford University study analyzing existing research on organic and conventional foods found limited evidence of health benefits for organic food. The review did show that consumption of organic foods can reduce pesticide exposure, but also noted that the differences were not clinically significant.
A new analysis found that over two-thirds of recently approved pesticide active ingredients have roots in natural substances. Scientists have discovered that biological and natural products-based pesticides are a rich source of new active ingredients.
A study by UC San Diego biologists found that a small dose of imidacloprid, a commonly used crop pesticide, makes honey bees more selective and less willing to feed on low-sugar nectar. This can lead to reduced food stores and communication among the colony.
Professor Eamonn Keogh's wireless bug sensor technology uses a text message system to alert farmers about harmful insects, reducing pesticide costs and increasing profits. The Vodafone Americas Foundation Wireless Innovation Project award recognizes innovative solutions for social good.
A new study from Harvard School of Public Health finds a link between imidacloprid and Colony Collapse Disorder (CCD) in honeybees. The researchers discovered that even low levels of the pesticide can cause hive collapse, highlighting the potential impact on agriculture.
Purdue University researchers discovered that chemical additives in pesticides can form smaller 'satellite' droplets that drift into unwanted areas. By carefully modulating the strength or ratio of surfactants to polymeric additives, these unwanted satellite droplets can be mitigated or eliminated.
Researchers at the University of Missouri are studying the molecular structure of a controversial pesticide to determine if it can be made more efficient and safer. They found that the active ingredient, methyl iodide, can be slowed down in its release, reducing the need for large amounts of pesticide.
A recent study by Mehmet Isleyen and colleagues found that grafted watermelon plants accumulate pesticide levels up to 140 times higher than non-grafted watermelons. The researchers advise commercial farmers to exercise caution when using this grafting practice to minimize exposure to pesticides.
Researchers from the University of Guam and Japan are collaborating on a new method for controlling sweet potato weevil pests using Integrated Pest Management (IPM) techniques. The team has successfully developed traps containing fungal spores, which have shown high effectiveness in reducing weevil populations.
Researchers sequence the two-spotted spider mite's genome, revealing genes capable of detoxifying pesticides and plant toxins. This breakthrough sheds light on how these pests counteract plant defenses and provides new insights for developing targeted pesticides.
A $7.5 million NIH grant will fund a Center of Excellence at Ohio State University to develop novel enzyme-based antidotes for nerve agents and pesticides. The team aims to create efficient enzymes that can neutralize multiple toxic agents, paving the way for new treatments and preventive measures.
Researchers discovered that a widely used bee antibiotic increases susceptibility to pesticides, contributing to colony collapse disorder. The study suggests that oxytetracycline interacts with specific proteins in the bees, rendering them more vulnerable to toxic chemicals.
A study published in PNAS found a strong association between high levels of pesticides, polycyclic aromatic hydrocarbons (PAHs), and an increased risk of spina bifida and anencephaly in newborns. The researchers collected placentas from 80 fetuses with birth defects and found high concentrations of endosulfan, lindane, and PAHs.
A study analyzing 500 organic substances in four major European rivers reveals that 38% are present in concentrations potentially affecting organisms. Most pesticides, not currently on the EU's list, pose a risk to aquatic ecosystems.
Researchers at UC Davis have developed a self-cleaning cotton fabric that can kill bacteria and break down toxic chemicals like pesticide residues when exposed to light. The new fabric uses 2-AQC, a chemical that bonds strongly to cellulose in cotton, producing reactive oxygen species that kill bacteria and break down toxins.
A Baylor University study investigated links between Gulf War Illness (GWI) and veterans' locations during the war. GWI was most prevalent in forward areas of Iraq and Kuwait, where it was strongly associated with use of a medication given to troops to protect them from nerve agent effects.
Low-income populations may be deprived of essential nutrients due to unfounded fears about pesticide residues on fruits and vegetables. Bruce N. Ames explains that most pesticides are naturally present in plants to protect them, and at low doses, they are not a concern for human health.
University of Guam scientist Dr. Gadi V.P. Reddy is developing an integrated control strategy to manage sweetpotato weevil populations using pheromone traps and lethal fungi, eliminating toxic pesticides.
Researchers have identified three cytochrome P450s in honey bee midguts that detoxify tau-fluvalinate and coumaphos, potentially allowing bees to coexist with these pesticides. This discovery may lead to the development of less toxic mite control methods.
Scientists with the U.S. Department of Agriculture (USDA) are identifying factors that influence pesticide levels in the Chesapeake Bay airshed. The study found that nearly all air samples contained lindane and chlordane products, with highest concentrations at dieldrin and DDE.
Researchers discovered a molecular link between pesticides and Parkinson's disease, shedding light on the oxidative stress that contributes to the neurodegenerative disorder. The study provides evidence that exposure to environmental toxins may be a primary cause of Parkinson's, with potential implications for prevention and treatment.
Researchers analyzed data collection methods to examine pesticide use's environmental impact. They found that flow velocities of soil water and residence time of pesticides in the soil affect sorption parameters.
The PhenologyMMS software predicts plant growth stages based on weather reports and soil moisture, providing farmers with a decision-making tool to optimize crop management. The program covers multiple crops, including corn, wheat, barley, and millet varieties, and can be used independently or integrated into existing models.
Research found that prenatal exposure to organophosphates negatively impacts perceptual reasoning and nonverbal problem-solving skills in early childhood. Mothers with a specific genotype associated with less efficient PON1 enzyme metabolization were particularly at risk.
Researchers in China have developed a genetically modified form of E. coli that can extract toxic pesticides like parathion and methyl parathion from the air with high efficiency. The biofilter system has shown average removal efficiencies of up to 95.2% for parathion and 98.6% for methyl parathion.
A new study reveals that American kestrels and other raptorial birds are more sensitive to the rodenticide diphacinone than previously thought. Birds ingesting high doses can die within days, while those consuming lower amounts survive with minimal harm.
Researchers discovered a strong link between the use of pesticides rotenone and paraquat and an increased risk of developing Parkinson's disease. The study found that people who used these pesticides developed the disease around 2.5 times more often than non-users.
A study evaluated four turfgrass management approaches to determine their aesthetic and economic impacts. Organic alternatives were found to be effective in improving lawn quality without increasing costs.
A study of 614 vineyard workers in South West France found a link between long-term pesticide exposure and declining cognitive abilities, including lower scores on memory and recall tests. The researchers suggest that higher risks of dementia may be associated with pesticide exposure.
Researchers at Arizona State University have successfully produced plant-derived human butyrylcholinesterase, a bioscavenger that can neutralize organophosphate toxins. This breakthrough holds promise for protecting the nervous system from pesticide and nerve agent poisoning, as well as treating related diseases such as Alzheimer's.
Scientists from Oregon State University and the European Union outline six regulatory issues for nanoparticles in pesticides, including disclosure and testing methods. The researchers aim to design safer nanoparticles that maximize benefits while preventing risks.
Researchers at MIT have developed a new method for attaching phosphorus to organic compounds using ultraviolet light, eliminating the need for hazardous chlorine. The breakthrough could lead to more sustainable production of industrial chemicals and materials.