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https://www.readbyqxmd.com/read/29232641/effect-of-thiacloprid-on-early-life-stages-of-common-carp-cyprinus-carpio
#1
Josef Velisek, Alzbeta Stara
Toxicity of the neonicotinoid pesticide thiacloprid to embryos and larvae of common carp Cyprinus carpio was assessed under laboratory conditions. Carp embryos and larvae were exposed to thiacloprid at four concentrations: 4.5 (environmental concentration), 45, 225, and 450 μg/L for 35 days and compared to a non-treated control group. The effects on lipid peroxidation, antioxidant enzyme levels (superoxide dismutase, glutathione reductase, catalase, glutathione S-transferase, and reduced glutathione), mortality, growth, development, and histopathogenesis were assessed...
December 1, 2017: Chemosphere
https://www.readbyqxmd.com/read/29226121/facts-and-fallacies-in-the-debate-on-glyphosate-toxicity
#2
Robin Mesnage, Michael N Antoniou
The safety profile of the herbicide glyphosate and its commercial formulations is controversial. Reviews have been published by individuals who are consultants and employees of companies commercializing glyphosate-based herbicides in support of glyphosate's reapproval by regulatory agencies. These authors conclude that glyphosate is safe at levels below regulatory permissible limits. In contrast, reviews conducted by academic scientists independent of industry report toxic effects below regulatory limits, as well as shortcomings of the current regulatory evaluation of risks associated with glyphosate exposures...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/29225689/acute-myeloid-leukaemia-at-an-early-age-reviewing-the-interaction-between-pesticide-exposure-and-kmt2a-rerrangments
#3
REVIEW
Maria S Pombo-de-Oliveira, Francianne Gomes Andrade, Gisele Dallapicola Brisson, Filipe Vicente Dos Santos Bueno, Ingrid Sardou Cezar, Elda Pereira Noronha
Acute myeloid leukaemia (AML) in early childhood is characterised by a high frequency of recurrent genomic aberrations associated with distinct myeloid subtypes, clinical outcomes and pathogenesis. Genomic instability is the first step of pathogenic mechanism in early childhood AML. A sum of adverse events is necessary to the development of infant AML (i-AML), which includes latency of biochemical-molecular and cellular effects. Inherited genetic susceptibility associated with exposures to biotransformation substances can modulate the risk of DNA damage and it is a very important piece in the pathogenic puzzle...
2017: Ecancermedicalscience
https://www.readbyqxmd.com/read/29225470/plasma-cholinesterase-levels-of-nepalese-farmers-following-exposure-to-organophosphate-pesticides
#4
Dinesh Neupane, Erik Jørs, Lars Peter Andreas Brandt
Background: Farmers in developing countries use highly toxic organophosphate pesticides. Thus, the aim of this study was to compare plasma cholinesterase (PChE) enzyme activity before and after exposure to organophosphate pesticides in a real-life setting. Methods: This was a prospective study conducted on 25 farmers spraying organophosphate pesticide in their farm. The PChE level was measured and clinical signs and symptoms of toxicity were asked before and immediately after spraying...
2017: Environmental Health Insights
https://www.readbyqxmd.com/read/29225323/mancozeb-impairs-the-ultrastructure-of-mouse-granulosa-cells-in-a-dose-dependent-manner
#5
Maria Grazia Palmerini, Manuel Belli, Stefania Annarita Nottola, Selenia Miglietta, Serena Bianchi, Sara Bernardi, Sevastiani Antonouli, Sandra Cecconi, Giuseppe Familiari, Guido Macchiarelli
Mancozeb, an ethylene bis-dithiocarbamate, is widely used as a fungicide and exerts reproductive toxicity in vivo and in vitro in mouse oocytes by altering spindle morphology and impairing the ability to fertilize. Mancozeb also induces a premalignant status in mouse granulosa cells (GCs) cultured in vitro, as indicated by decreased p53 expression and tenuous oxidative stress. However, the presence and extent of ultrastructural alterations induced by mancozeb on GCs in vitro have not yet been reported. Using an in vitro model of reproductive toxicity, comprising parietal GCs from mouse antral follicles cultured with increasing concentrations of mancozeb (0...
December 11, 2017: Journal of Reproduction and Development
https://www.readbyqxmd.com/read/29224673/understanding-the-role-of-environmental-factors-in-the-development-of-systemic-lupus-erythematosus
#6
REVIEW
Christine G Parks, Aline de Souza Espindola Santos, Medha Barbhaiya, Karen H Costenbader
Systemic lupus erythematosus (SLE) is a multisystem disease with a complex etiology. Its risk is higher among women, racial and ethnic minorities, and individuals with a family history of SLE or related autoimmune diseases. It is believed that genetic factors interact with environmental exposures throughout the lifespan to influence susceptibility to developing SLE. The strongest epidemiologic evidence exists for increased risk of SLE associated with exposure to crystalline silica, current cigarette smoking, use of oral contraceptives, and postmenopausal hormone replacement therapy, while there is an inverse association with alcohol use...
June 2017: Best Practice & Research. Clinical Rheumatology
https://www.readbyqxmd.com/read/29223450/pesticide-degrading-natural-multidrug-resistance-bacterial-flora
#7
REVIEW
Kirubakaran Rangasamy, Murugan Athiappan, Natarajan Devarajan, Gopinath Samykannu, Javid A Parray, K N Aruljothi, Nowsheen Shameem, Abdulaziz A Alqarawi, Abeer Hashem, Elsayed Fathi Abd Allah
Multidrug-resistant (MDR) bacteria are a growing threat to humans across the world. Antibiotic resistance is a global problem that has developed through continuous antibiotic use, combinatorial antibiotic use, pesticide-antibiotic cross-resistance, and horizontal gene transfer, as well as various other modes. Pesticide-antibiotic cross-resistance and the subsequent expansion of drug-resistant bacteria are critically documented in this review, the primary focus of which is to assess the impact of indiscriminate pesticide use on the development of microbial communities with parallel pesticide and multidrug resistance...
December 6, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29220516/lethal-and-sub-lethal-effects-of-four-insecticides-on-the-aphidophagous-coccinellid-adalia-bipunctata-coleoptera-coccinellidae
#8
Laura Depalo, Alberto Lanzoni, Antonio Masetti, Edison Pasqualini, Giovanni Burgio
Conventional insecticide assays, which measure the effects of insecticide exposure on short-term mortality, overlook important traits, including persistence of toxicity or sub-lethal effects. Therefore, such approaches are especially inadequate for prediction of the overall impact of insecticides on beneficial arthropods. In this study, the side effects of four modern insecticides (chlorantraniliprole, emamectin benzoate, spinosad, and spirotetramat) on Adalia bipunctata (L.) (Coleoptera: Coccinellidae) were evaluated under laboratory conditions by exposition on treated potted plants...
December 5, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29209972/pbpk-pd-assessment-for-parkinson-s-disease-risk-posed-by-airborne-pesticide-paraquat-exposure
#9
Yi-Hsien Cheng, Wei-Chun Chou, Ying-Fei Yang, Chi-Wei Huang, Chun Ming How, Szu-Chieh Chen, Wei-Yu Chen, Nan-Hung Hsieh, Yi-Jun Lin, Shu-Han You, Chung-Min Liao
Exposure to several specific pesticides has led to an increase of Parkinson's disease (PD) risk. However, it is difficult to quantify the PD population risk related to certain pesticides in regions where environmental exposure data are scarce. Furthermore, the time trend of the prevalence and incidence of PD embedded in the background relationship between PD risk and pesticide exposures has not been well characterized. It has been convincingly identified that a key pesticide associated significantly with an increased risk trend of PD is paraquat (PQ)...
December 5, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29209969/children-s-environmental-chemical-exposures-in-the-usa-nhanes-2003-2012
#10
Michael Hendryx, Juhua Luo
Children are vulnerable to environmental chemical exposures, but little is known about the extent of multiple chemical exposures among children. We analyzed biomonitoring data from five cycles (2003-2012) of the National Health and Nutrition Examination Survey (NHANES) to describe multiple chemical exposures in US children, examine levels of chemical concentrations present over time, and examine differences in chemical exposures by selected demographic groups. We analyzed data for 36 chemical analytes across five chemical classes in a sample of 4299 children aged 6-18...
December 5, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29209747/an-adverse-outcome-pathway-for-parkinsonian-motor-deficits-associated-with-mitochondrial-complex-i-inhibition
#11
REVIEW
Andrea Terron, Anna Bal-Price, Alicia Paini, Florianne Monnet-Tschudi, Susanne Hougaard Bennekou, Marcel Leist, Stefan Schildknecht
Epidemiological studies have observed an association between pesticide exposure and the development of Parkinson's disease, but have not established causality. The concept of an adverse outcome pathway (AOP) has been developed as a framework for the organization of available information linking the modulation of a molecular target [molecular initiating event (MIE)], via a sequence of essential biological key events (KEs), with an adverse outcome (AO). Here, we present an AOP covering the toxicological pathways that link the binding of an inhibitor to mitochondrial complex I (i...
December 5, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/29207697/effects-of-organophosphorus-pesticides-on-cardiorespiratory-parameters-among-the-farmers
#12
Udayakumar Karthika Priyadharshini, Radhakrishnan Latha, Ukkirapandian Kavitha, Natarajan Nirmala
Introduction: Indiscriminate use and improper handling of synthetic pesticides in agriculture have resulted in serious problems such as asthma, wheeze and chronic bronchitis among the farmers. Though number of studies have been done on pesticide exposure and its effect on cardiorespiratory parameters in Northern India, only few studies were done in Southern India, thus this study was chosen. Aim: To find the cardiorespiratory changes in farm workers exposed to organophosphorus pesticides...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29207507/zinc-ameliorate-oxidative-stress-and-hormonal-disturbance-induced-by-methomyl-abamectin-and-their-mixture-in-male-rats
#13
Sameeh A Mansour, Mostafa A Abbassy, Hassan A Shaldam
Exposure to mixtures of toxicants (e.g., pesticides) is common in real life and a subject of current concern. The present investigation was undertaken to assess some toxicological effects in male rats following exposure to methomyl (MET), abamectin (ABM), and their combination (MET+ABM), and to evaluate the ameliorative effect of zinc co-administration. Three groups of rats were designated for MET, ABM, and the mixture treatments. Three other groups were designated for zinc in conjunction with the pesticides...
December 3, 2017: Toxics
https://www.readbyqxmd.com/read/29204935/neuroprotective-potential-of-crocin-against-malathion-induced-motor-deficit-and-neurochemical-alterations-in-rats
#14
Leila Mohammadzadeh, Hossein Hosseinzadeh, Khalil Abnous, Bibi Marjan Razavi
In several epidemiological studies, an association between pesticide exposure and the incidence of Parkinson's disease (PD) has been reported. Increasing evidence showed that oxidative stress plays an important role in the pathogenesis of PD. The present study investigated the preventive effect of crocin, saffron active components, on malathion (an organophosphate pesticide (OP))-induced Parkinson-like behaviors in rat. Rats were divided into eight groups: control (normal saline), malathion (100 mg/kg/day, i...
December 4, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29203293/association-between-prenatal-exposure-to-organochlorine-pesticides-and-the-mental-and-psychomotor-development-of-infants-at-ages-6-and-18-months-the-hokkaido-study-on-environment-and-children-s-health
#15
Keiko Yamazaki, Atsuko Araki, Sonomi Nakajima, Chihiro Miyashita, Tamiko Ikeno, Sachiko Itoh, Machiko Minatoya, Sumitaka Kobayashi, Futoshi Mizutani, Yoichi Chisaki, Reiko Kishi
Organochlorine pesticides (OCPs) are environmental contaminants that persist in the environment and bioaccumulate through the food chain in humans and animals. Although previous studies have shown an association between prenatal OCP exposure and subsequent neurodevelopment, the levels of OCPs included in these studies were inconsistent. A hospital-based prospective birth cohort study was conducted to examine the associations between prenatal exposure to relatively low levels of OCPs and neurodevelopment in infants at 6 (n=164) and 18 (n=115)months of age...
December 1, 2017: Neurotoxicology
https://www.readbyqxmd.com/read/29202434/cypermethrin-induced-toxicities-in-fish-and-adverse-health-outcomes-its-prevention-and-control-measure-adaptation
#16
REVIEW
Sana Ullah, Amina Zuberi, Mahmoud Alagawany, Mayada Ragab Farag, Maryam Dadar, Kumaragurubaran Karthik, Ruchi Tiwari, Kuldeep Dhama, Hafiz M N Iqbal
Pesticides are being widely employed in the modern agriculture, though in different quantities, across the globe. Although it is useful for crops yield enhancement, however, there are the serious environment, health and safety related concerns for aquatic and terrestrial living biomes that include humans, animals, and plants. Various in practice and emerging pesticides adversely affect the survival, development and biological systems stability. Several research efforts have been made to highlight the bio-safety and toxicological features of toxicants through risk assessment studies using different animal models, e...
December 1, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/29202382/pesticide-exposure-tobacco-use-poor-self-perceived-health-and-presence-of-chronic-disease-are-determinants-of-depressive-symptoms-among-coffee-growers-from-southeast-brazil
#17
Catarine Lima Conti, Wagner Miranda Barbosa, João Batista Pavesi Simão, Adriana Madeira Álvares-da-Silva
The lifestyle and other factors associated with the appearance of several health conditions that affect quality of life in rural zone is an issue that has been increasingly explored. Brazil is the largest coffee-producing nation in the world and has been a considerable consumer of pesticides since 2008. The aim of the present study was to investigate factors that could be contributing to the appearance of depressive symptoms in rural workers. Two hundred twenty male volunteers from nine cities in Southeast Brazil completed the Beck Depression Inventory-II (BDI-II) questionnaire about depressive symptoms and provided other information about socio-demographic characteristics and additional confounding factors...
December 1, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/29201133/risk-of-lymphoma-subtypes-by-occupational-exposure-in-southern-italy
#18
Giovanni Maria Ferri, Giorgina Specchia, Patrizio Mazza, Giuseppe Ingravallo, Graziana Intranuovo, Chiara Monica Guastadisegno, Maria Luisa Congedo, Gianfranco Lagioia, Maria Cristina Loparco, Annamaria Giordano, Tommasina Perrone, Francesco Guadio, Caterina Spinosa, Carla Minoia, Lucia D'Onghia, Michela Strusi, Vincenzo Corrado, Domenica Cavone, Luigi Vimercati, Nunzia Schiavulli, Pierluigi Cocco
Background: Occupational exposure is known to play a role in the aetiology of lymphomas. The aim of the present work was to explore the occupational risk of the major B-cell lymphoma subtypes using a case-control study design. Methods: From 2009 to 2014, we recruited 158 lymphoma cases and 76 controls in the provinces of Bari and Taranto (Apulia, Southern Italy). A retrospective assessment of occupational exposure based on complete work histories and the Carcinogen Exposure (CAREX) job-exposure matrix was performed...
2017: Journal of Occupational Medicine and Toxicology
https://www.readbyqxmd.com/read/29201050/the-role-of-ache-in-swimming-behavior-of-daphnia-magna-correlation-analysis-of-both-parameters-affected-by-deltamethrin-and-methomyl-exposure
#19
Qing Ren, Ruibin Zhao, Cheng Wang, Shangge Li, Tingting Zhang, Zongming Ren, Meiyi Yang, Hongwei Pan, Shiguo Xu, Jianping Zhu, Xun Wang
The unpredictable toxicity of insecticides may cause behavior disorder of biological organisms. In order to assess the role of acetylcholinesterase (AChE) in swimming behavior of Daphnia magna, a correlation analysis of both parameters in 24 h exposure of deltamethrin (DM) and methomyl (MT) was investigated. The behavior responses of D. magna in DM (13.36 μg/L and 33.40 μg/L) and MT (19.66 μg/L and 49.15 μg/L) suggested that recovery behavior in the adjustment phase was crucial, and behavior homeostasis provided them with an optimal way to achieve a wider tolerance against environmental stress...
2017: Journal of Toxicology
https://www.readbyqxmd.com/read/29199264/organophosphorus-pesticide-exposure-in-agriculture-effects-of-temperature-ultraviolet-light-and-abrasion-on-pvc-gloves
#20
Ismaniza Ismail, Sharyn Gaskin, Dino Pisaniello, John W Edwards
Elbow length PVC gloves are often recommended for protection against organophosphorus pesticide (OP) exposure in agriculture. However, performance may be reduced due to high temperature, UV exposure and abrasion. We sought to assess these impacts for two OPs under normal use and reasonable worst-case scenarios. Glove permeation tests were conducted using ASTM cells with two PVC glove brands at 23°C and 45°C for up to 8 hours. Technical grade dichlorvos and formulated diazinon were used undiluted and at application strength...
December 2, 2017: Industrial Health
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