keyword
https://read.qxmd.com/read/38517100/exposure-of-male-farmers-and-nonfarmers-to-neonicotinoid-pesticides-in-the-south-west-and-littoral-regions-of-cameroon-a-comparative-study
#21
JOURNAL ARTICLE
Faustin Pascal Tsagué Manfo, Collins Nimako, Edouard Akono Nantia, Christian Fusi Suh, Shu Policap Chenwi, Fidelis Cho-Ngwa, Paul Fewou Moundipa, Shouta M M Nakayama, Mayumi Ishizuka, Yoshinori Ikenaka
Pesticides, especially the newly developed neonicotinoids, are increasingly used in many countries around the world, including Cameroon, to control pests involved in crop destruction or disease transmission. Unfortunately, the pesticides also pose tremendous environmental problems because a predominant amount of their residues enter environmental matrices to affect other nontargeted species including humans. This therefore calls for continuous biomonitoring of these insecticides in human populations. The present study sought to assess the neonicotinoid insecticide exposures in two agrarian regions of Cameroon, the South-West region and Littoral region...
March 22, 2024: Environmental Toxicology and Chemistry
https://read.qxmd.com/read/38513485/effect-of-vine-leaves-processing-on-azoxystrobin-fenazaquin-and-indoxacarb-residues-dissipation-processing-factors-and-consumer-safety-assessment
#22
JOURNAL ARTICLE
Liliane Majed, Salem Hayar, Sylvie Dousset, Britt Marianna Maestroni, Khaled El Omari
The effect of vine leaves processing techniques on Azoxystrobin, Fenazaquin, and Indoxacarb residues was investigated. Residue extraction following field application of pesticides and leaf processing was carried out using the QuEChERS method, with analysis conducted by LC-MS/MS. In dry conservation, Azoxystrobin's half-life was estimated to exceed a year, Fenazaquin's was 18 days, and Indoxacarb's was 142 days. Azoxystrobin had a half-life of 261 days, Fenazaquin had a half-life of 9 days, and Indoxacarb's half-life exceeded a year in brine conservation...
March 19, 2024: Food Chemistry
https://read.qxmd.com/read/38513093/cross-pollination-in-seed-blended-refuge-and-selection-for-vip3a-resistance-in-a-lepidopteran-pest-as-detected-by-genomic-monitoring
#23
JOURNAL ARTICLE
Daniela Pezzini, Katherine L Taylor, Dominic D Reisig, Megan L Fritz
The evolution of pest resistance to management tools reduces productivity and results in economic losses in agricultural systems. To slow its emergence and spread, monitoring and prevention practices are implemented in resistance management programs. Recent work suggests that genomic approaches can identify signs of emerging resistance to aid in resistance management. Here, we empirically examined the sensitivity of genomic monitoring for resistance management in transgenic Bt crops, a globally important agricultural innovation...
March 26, 2024: Proceedings of the National Academy of Sciences of the United States of America
https://read.qxmd.com/read/38508253/late-gestational-exposure-to-fenvalerate-impacts-ovarian-reserve-in-neonatal-mice-via-ythdf2-mediated-p-body-assembly
#24
JOURNAL ARTICLE
Fei He, Xinyi Mu, Yan Zhang, Yongheng Wang, Jianwei Geng, Yanqing Geng, Yidan Ma, Xin Yin, Rufei Gao, Xuemei Chen, Junlin He
Fenvalerate (FEN), a type II pyrethroid pesticide, finds extensive application in agriculture, graziery and public spaces for pest control, resulting in severe environmental pollution. As an environmental endocrine disruptor with estrogen-like activity, exposure to FEN exhibited adverse effects on ovarian functions. Additionally, the presence of the metabolite of FEN in women's urine shows a positive association with the risk of primary ovarian insufficiency (POI). In mammals, the primordial follicle pool established during the early life serves as a reservoir for storing all available oocytes throughout the female reproductive life...
March 18, 2024: Science of the Total Environment
https://read.qxmd.com/read/38508043/quantitative-differentiation-of-toxicity-contributions-and-predicted-global-risk-of-fipronil-and-its-transformation-products-to-aquatic-invertebrates
#25
JOURNAL ARTICLE
Fen Liu, Huizhen Li, Xiaolei Zhang, Hao Hu, Biyao Yuan, Jing You
Biotransformation often alters chemical toxicity, yet its impacts on risk assessment are hardly quantified due to the challenges in acquiring internal exposure-based thresholds for chemicals that are readily metabolizable. Here, we integrated toxic unit and toxicokinetics to quantitatively assess toxicity contributions and potential risk of both parent compound and transformation products (TPs) to aquatic organisms, using fipronil (FIP) as a representative toxicant. In aquatic invertebrates Chironomus dilutus and Hyalella azteca, approximately 90 % of FIP was transformed to fipronil sulfone (SUL)...
March 12, 2024: Water Research
https://read.qxmd.com/read/38504322/organochlorine-pesticides-and-risk-of-papillary-thyroid-cancer-in-u-s-military-personnel-a-nested-case-control-study
#26
JOURNAL ARTICLE
Jennifer A Rusiecki, Jordan McAdam, Hristina Denic-Roberts, Andreas Sjodin, Mark Davis, Richard Jones, Thanh D Hoang, Mary H Ward, Shuangge Ma, Yawei Zhang
BACKGROUND: The effects of organochlorine pesticide (OCP) exposure on the development of human papillary thyroid cancer (PTC) are not well understood. A nested case-control study was conducted with data from the U.S. Department of Defense Serum Repository (DoDSR) cohort between 2000 and 2013 to assess associations of individual OCPs serum concentrations with PTC risk. METHODS: This study included 742 histologically confirmed PTC cases (341 females, 401 males) and 742 individually-matched controls with pre-diagnostic serum samples selected from the DoDSR...
March 19, 2024: Environmental Health
https://read.qxmd.com/read/38504311/effect-of-chlorpyrifos-exposure-on-the-expression-levels-of-cyp-genes-in-daphnia-magna-and-examination-of-a-possibility-that-an-up-regulated-clan-3-cyp-cyp360a8-reacts-with-pesticides
#27
JOURNAL ARTICLE
Shinpei Ohnuki, Shinichi Tokishita, Masaki Kojima, Shoko Fujiwara
Daphnia magna is a test organism used for ecological risk assessments of pesticides, but little is known about the expression levels of cytochrome P450s (CYP)s and their changes after pesticide exposure in the less than 24-h-olds used for ecotoxicity tests. In this study, D. magna juveniles were exposed to 0.2 μg/L of chlorpyrifos under the conditions for acute immobilization test as specified by the OECD test guideline for 24 h, and then the gene expression was compared between the control and chlorpyrifos-exposure groups by RNA-sequencing analysis, with a focus on CYP genes...
March 19, 2024: Environmental Toxicology
https://read.qxmd.com/read/38503707/-determination-of-nine-aromatic-amines-in-water-by-cloud-point-extraction-gas-chromatography-mass-spectrometry
#28
JOURNAL ARTICLE
Chao Yang, Jing-Long Liu, Xiao-Jian Xu, Li-Juan Wu, Ming-Ming Yin, Wei Dai, Qian Han
Aromatic amines are a class of compounds bearing amino groups on their benzene rings; these compounds are important raw materials for the industrial production of rubber chemicals, pesticides, dyes, pharmaceuticals, photosensitive chemicals, and agricultural chemicals. Research has revealed that some aromatic amines teratogenetic, carcinogenic, and mutagenic properties. Given the high toxicity and potential harm caused by aromatic amines, monitoring their levels in water sources is critical. Aromatic amines are among the 14 strategic environmental pollutants blacklisted in China, and assessing their exposure levels is essential for protecting human health and the environment...
March 8, 2024: Se Pu, Chinese Journal of Chromatography
https://read.qxmd.com/read/38503336/single-and-combined-exposure-to-bee-safe-pesticides-alter-behaviour-and-offspring-production-in-a-ground-nesting-solitary-bee-xenoglossa-pruinosa
#29
JOURNAL ARTICLE
Sabrina Rondeau, Nigel E Raine
Mounting evidence supporting the negative impacts of exposure to neonicotinoids on bees has prompted the registration of novel 'bee-friendly' insecticides for agricultural use. Flupyradifurone (FPF) is a butenolide insecticide that shares the same mode of action as neonicotinoids and has been assessed to be 'practically non-toxic to adult honeybees' using current risk assessment procedures. However, these assessments overlook some routes of exposure specific to wild bees, such as contact with residues in soil for ground-nesters...
March 27, 2024: Proceedings. Biological Sciences
https://read.qxmd.com/read/38501445/dissipation-and-risk-assessment-of-propaquizafop-in-ginseng-under-field-conditions
#30
JOURNAL ARTICLE
Zhijia Cheng, Yang Xiong, Tengda Ma, Qingyi Wang, Mingxia Song, Qinghui Zhao, Ning Zhang, Jingbo Guo, Yahe Wang, Zhiguang Hou, Zhongbin Lu
Propaquizafop is a highly efficient aryloxy phenoxy propionate chiral herbicide. However, the use of propaquizafop, including its safe use methods, residue patterns, dietary risk assessment, and maximum residue limits, for ginseng, a traditional Chinese medicinal plant, has not been studied. An analytical method was established for the simultaneous determination of propaquizafop and its four metabolites in ginseng soil, fresh ginseng, ginseng plant, and dried ginseng using HPLC-MS/MS. This approach showed good linearity ( R 2 ranging from 0...
March 19, 2024: Journal of Agricultural and Food Chemistry
https://read.qxmd.com/read/38499550/in-vitro-and-in-vivo-investigation-of-a-thyroid-hormone-system-specific-interaction-with-triazoles
#31
JOURNAL ARTICLE
Asya Kadic, Patricia Oles, Benjamin Christian Fischer, Anne Elisabeth Reetz, Boubacar Sidiki Sylla, Katreece Feiertag, Vera Ritz, Tanja Heise, Philip Marx-Stoelting, Tewes Tralau, Kostja Renko, Marize de Lourdes Marzo Solano
Alterations in thyroid hormones (TH) and thyroid-stimulating hormone levels are frequently found following exposure to chemicals of concern. Dysregulation of TH levels can severely perturb physiological growth, metabolism, differentiation, homeostasis in the adult and developmental processes in utero. A frequently identified mode of action for this interaction is the induction of hepatic detoxification mechanisms (e.g. SULTs and UGTs), which lead to TH conjugation and elimination and therefore interfere with hormonal homeostasis, fulfilling the endocrine disruptors (EDs) definition...
March 18, 2024: Scientific Reports
https://read.qxmd.com/read/38496207/physical-rehabilitation-crucial-in-motor-axonal-neuropathy-following-organophosphorus-poisoning-a-case-study
#32
Alfiza Khan, Nikita H Seth, H V Sharath
In India, organophosphorus (OP) chemicals known as anticholinesterases cause a considerable amount of disease and mortality. While precise figures are unavailable, data from hospitals indicates that about 50% of acute poisoning episodes are attributed to organophosphates. Anticholinesterases, when accidentally or suicidally exposed, cause three different neurological disorders. The first is an acute cholinergic crisis that can be fatal and necessitates administration in an intensive care unit; the second is an intermediate syndrome that frequently results in cranial nerve palsies, proximal and respiratory muscle weakness, and respiratory support for patients; and the third is a delayed organophosphate-induced polyneuropathy...
February 2024: Curēus
https://read.qxmd.com/read/38496188/experiment-to-demonstrate-pesticide-induced-antimicrobial-resistance-amr-an-emerging-health-threat
#33
JOURNAL ARTICLE
Rahil Pasha S A, Namitha B N, Warisha Ismail, Repati Gowri, Arvind Natarajan
Background Pesticides, including insecticides, herbicides, and fungicides, are essential for global food production, boosting crop yields, and preventing disease transmission. However, their excessive and improper use raises concerns about potential long-term consequences, affecting microbial ecosystems and fostering antimicrobial resistance. Materials and methods The objective of the study was to identify the effect of the pesticide compound (Imidacloprid 17.1% w/w) on the ATCC  Escherichia coli ...
February 2024: Curēus
https://read.qxmd.com/read/38494060/an-update-on-pediatric-environmental-health-specialty-units-activities-and-impacts-2015-2019
#34
JOURNAL ARTICLE
Alan D Woolf, J Elizabeth Jackson, Peter Corcoran, Meredith K Fritz, Stephani S Kim, Tanya M Maslak, Manthan Shah, Linda Hansen
INTRODUCTION: Pediatric Environmental Health Specialty Units (PEHSUs) address health concerns impacting children and their families related to environmental hazards by providing consultation and education to families, communities, and healthcare professionals. This analysis evaluated productivity of the national PEHSU program. METHODS: PEHSUs reported data on services provided to U.S. communities between October 1, 2014 and September 30, 2019. Descriptive statistics and qualitative analysis are presented...
March 15, 2024: Academic Pediatrics
https://read.qxmd.com/read/38494025/exposure-to-the-environmental-pollutant-chlorpyrifos-induces-hepatic-toxicity-through-activation-of-the-jak-stat-and-mapk-pathways
#35
JOURNAL ARTICLE
Huiyang Fu, Yao Ge, Xiyuan Liu, Siwei Deng, Jun Li, Peng Tan, Ying Yang, Zhenlong Wu
Chlorpyrifos (CHP) is an inexpensive highly effective organophosphate insecticide used worldwide. The unguided and excessive use of CHP by farmers has led to its significant accumulation in crops as well as contamination of water sources, causing health problems for humans and animals. Therefore, this study evaluated the toxicological effects of exposure to the environmental pollutant CHP at low, medium, and high (2.5, 5, and 10 mg·kg-1 BW) levels on rat liver by examining antioxidant levels, inflammation, and apoptosis based on the no observed adverse effect levels (NOAEL) (1 mg·kg-1 BW) and the CHP dose that does not cause any visual symptoms (5 mg·kg-1 BW)...
March 15, 2024: Science of the Total Environment
https://read.qxmd.com/read/38493848/an-anti-inflammatory-response-of-an-organic-food-intervention-by-reducing-pesticide-exposures-in-children-of-cyprus-a-cluster-randomized-crossover-trial
#36
JOURNAL ARTICLE
Samuel Abimbola, Corina Konstantinou, Christina Xeni, Pantelis Charisiadis, Konstantinos C Makris
Organic food consumption in children has been shown to reduce the body burden of chemical pesticides. However, there is little evidence of potential health benefits associated with the consumption of organic foods. The objectives were to i) determine the effectiveness of an organic food intervention in reducing the magnitude of an inflammation biomarker (CRP) in children (10-12 years) and ii) assess the association between the biomarkers of exposure to pesticides and CRP. This was part of the ORGANIKO cluster-randomized cross-over trial entailing a 40-day organic food treatment in healthy children...
March 15, 2024: Environmental Research
https://read.qxmd.com/read/38493632/inhalation-bioaccessibility-of-imidacloprid-in-particulate-matter-implications-for-risk-assessment-during-spraying
#37
JOURNAL ARTICLE
Yuying Liu, Fengxiang Lin, Xingyu Yue, Sai Zhang, Han Wang, Jinjing Xiao, Haiqun Cao, Yanhong Shi
Adverse health outcomes due to the inhalation of pesticide residues in atmospheric particulate matter (PM) are gaining global attention. Quantitative health risk assessments of pesticide inhalation exposure highlight the need to understand the bioaccessibility of pesticide residues. Herein, the inhalation bioaccessibility of imidacloprid in PM was determined using three commonly used in vitro lung modeling methods (Artificial Lysosomal Fluid, Gamble Solution, and Simulated Lung Fluid). To validate its feasibility and effectiveness, we evaluated the bioavailability of imidacloprid using a mouse nasal instillation assay...
March 7, 2024: Journal of Hazardous Materials
https://read.qxmd.com/read/38493253/modeling-pesticides-and-ecotoxicological-risk-assessment-in-an-intermittent-river-using-swat
#38
JOURNAL ARTICLE
Marco Centanni, Giovanni Francesco Ricci, Anna Maria De Girolamo, Francesco Gentile
The present work aimed to predict the fate of two pesticides, copper (Cu) and glyphosate in a Mediterranean basin with an intermittent river and to assess the ecotoxicological risk related to their presence in water bodies coupling field measurements of streamflow and pesticide concentrations, and an eco-hydrological model. The Soil and Water Assessment Tool (SWAT) model was calibrated and, subsequently used to assess predicted environmental concentrations of pesticides in surface waters. The ecotoxicological risk related to the presence of Cu and glyphosate in surface water was assessed at the reach scale by using the Toxicity to Exposure Ratio approach (TER)...
March 16, 2024: Scientific Reports
https://read.qxmd.com/read/38492742/-climate-and-environmental-crisis-impacts-on-women-s-health-what-specificities-what-can-be-done
#39
JOURNAL ARTICLE
Catherine Azoulay
OBJECTIVE: Pollution is one of the world's largest risk factors for disease and premature death. In Europe, it is responsible for approximately 20% of mortality. Chemicals exposure can occur by inhalation, ingestion or skin contact and begins in utero. Pollutants can be divided into three categories: endocrine disruptors (pesticides, PFAS, plastics, dioxins, etc.), heavy metals (cadmium, mercury and lead...) and nanomaterials. Climate change and air pollution are other main health threats...
March 14, 2024: Gynecologie, Obstetrique, Fertilite & Senologie
https://read.qxmd.com/read/38492485/dissipation-behaviours-residues-and-health-risk-of-six-herbicides-in-sugar-beets-under-field-conditions
#40
JOURNAL ARTICLE
Zhijia Cheng, Hemin Gao, Yang Xiong, Liping Wei, Tengda Ma, Liran Wang, Shanshan Gao, Xilong Jiang, Jianan Li, Yahe Wang, Zhiguang Hou, Zhongbin Lu
This study established a residue detection method based on the QuEChERS pre-treatment method and combined it with high-performance liquid chromatography-tandem mass spectrometry to test six herbicides (metamitron, clopyralid, desmedipham, phenmedipham, ethofumesate, and haloxyfop-p-methyl) in sugar beet plants, soil, and roots. The degradation dynamics and terminal residues of each herbicide in sugar beets were analysed. Finally, the dietary risks of various herbicides in sugar beets were evaluated based on the dietary structure of Chinese people, and the risk quotient values were below 100%...
March 15, 2024: Ecotoxicology and Environmental Safety
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