Archive for the 'Endocrine Disruption' Category
23
Apr
(Beyond Pesticides, April 23, 2025) Recent reviews of scientific literature, in both Chemosphere and Reports in Public Health, associate Parkinson’s disease (PD), the second most prevalent neurodegenerative disease globally, with pesticide exposure. “Given the pervasive nature of pesticide residues in everyday food consumption and inadequate monitoring of their long-term toxicological impacts, the role of pesticide exposure as a modifiable risk factor for neurological disorders, including PD, warrants urgent attention,” the researchers state in the article in Chemosphere. In describing the history of Parkinson’s and previous research, the authors in Reports in Public Health note that while PD etiology is not fully understood, it is a multifactorial disease. “Hereditary factors are present in approximately 10% of diagnosed cases of Parkinson’s disease, presenting early onset; while the other 90% of cases are categorized as idiopathic or sporadic Parkinson’s disease, occurring in older individuals and may be associated with exposure to environmental agents,” the researchers say. This disease, first described by English physician James Parkinson, M.D. in 1817, involves neurochemical changes that present as “the appearance of cardinal motor symptoms, such as bradykinesia, rigidity, postural instability, and rest tremor, which are essential for the clinical diagnosis of the disease,” the researchers note. The […]
Posted in 2,4-D, Atrazine, behavioral and cognitive effects, Brain Effects, Chlorpyrifos, cypermethrin, Dichlorvos, Dieldrin, Environmental Protection Agency (EPA), Glyphosate, Malathion, mancozeb, Maneb, Nervous System Effects, Oxidative Stress, Paraquat, Parkinson's, Pesticide Mixtures, Rotenone | No Comments »
18
Apr
(Beyond Pesticides, April 18, 2025) A recent study published in Foods assesses the ability of the fungicide azoxystrobin (AZX) and naturally occurring toxins produced by certain fungi, known as mycotoxins, to display effects of cytotoxicity (cell damage). These effects were evaluated using three common mycotoxins found in food, including ochratoxin A (OTA), deoxynivalenol (DON), and T-2 toxin as mixtures with AZX within human hepatocarcinoma (HepG2) cell cultures. In analyzing combinations of these compounds at sublethal concentrations, the authors find modified toxicological behavior and synergistic effects that highlight the complexities of chemical mixtures, and potential threats to liver health through dietary exposure to both toxicants and toxins, that are not adequately regulated for their interactions. While fungicides, like azoxystrobin, are intended to prevent or control fungal diseases, resistance to these pesticides can increase the presence of fungi, and subsequent mycotoxins, on crops. This scenario allows for co-exposure of fungicides and mycotoxins within food products that present a risk to consumers. These chemicals can threaten human health individually, as the researchers confirm in their study, but present a greater threat in combination. The mixture of AZX with all three mycotoxins exhibits the highest toxicity, with synergistic effects at all tested concentration levels. […]
Posted in Agriculture, Azoxystrobin, Chemical Mixtures, European Union, Fungicides, Liver Damage, National Organic Standards Board/National Organic Program, NOSB National Organic Standards Board, Oxidative Stress, Pesticide Residues, synergistic effects | No Comments »
17
Apr
(Beyond Pesticides, April 17, 2025) A literature review in Reproductive Sciences finds glyphosate (GLY) and glyphosate-based herbicides (GBH) impact women’s reproductive health, adding to the long list of documented harm from this widely used weed killer. The authors note, “Considering the widespread use of GLY, the controversy regarding its endocrine-disrupting potential and reproductive toxicity, and the innumerable lawsuits filed against Bayer and Monsanto by consumers for morbidities related to Roundup™ exposure, the purpose of this review is to summarize the current literature on the potential adverse effects of GLY and GBHs on the female reproductive tract and discuss possible clinical implications on reproductive health outcomes, including polycystic ovarian syndrome (PCOS), endometriosis, and female fertility.” Glyphosate and aminomethylphosphonic acid (AMPA), the primary metabolite (breakdown product) of GLY, are found throughout the environment in soil and water, as well as in samples of blood, urine, seminal plasma, and breast milk. Studies have detected residues in farmworkers, as well as “in the urine of 60–80% of the general public in the USA, including pregnant women and children.” (See studies here, here, and here.) The ubiquitous use of GLY and GBH, and subsequent persistence, threatens the health and well-being of all. Previous studies have […]
Posted in Agriculture, aminomethylphosphonic acid (AMPA), Bayer, DNA Damage, Endocrine Disruption, endometriosis, Glyphosate, Herbicides, Infertility, Monsanto, Oxidative Stress, PCOS, Reproductive Health, Women's Health | No Comments »
08
Apr
(Beyond Pesticides, April 8, 2025) A comprehensive literature review in Environment & Health analyzes evidence from human biomonitoring, epidemiological studies, and toxicological studies that link adverse effects on women’s reproductive health, specifically impacting the ovary, to pesticide exposure. In examining the scientific literature, consisting of over 200 studies performed in the last 25 years, the authors find pesticide exposure threatens women’s health through ovarian dysfunction. “Epidemiological studies have shown that pesticide exposures are associated with early/delayed menarche [first occurrence of menstruation], menstrual cycle disorders, early menopause, long time to pregnancy, polycystic ovary syndrome, primary ovarian insufficiency, infertility, and implantation failure in women,” the researchers state. They continue, “Both in vivo [in animals] and in vitro [in cells] studies have shown that exposure to pesticides disrupts the estrous cycle, reduces the follicle pool, alters hormone levels, and impairs oocyte [egg] maturation.” These reproductive implications are noted with many different classes of pesticides, such as insecticides, including organochlorine pesticides (OCPs), organophosphates (OPs), pyrethroids, and neonicotinoids, as well as herbicides and fungicides. The authors, however, comment on present research gaps: “Much of the available epidemiological evidence focuses on legacy insecticides, such as OCPs, and a subset of insecticides that are still in use […]
Posted in acetamiprid, Atrazine, Bifenthrin, Chlorpyrifos, cypermethrin, DDT, Deltamethrin, Diazinon, fenvalerate, Glyphosate, Imidacloprid, Infertility, lambda-cyhalothrin, Lindane, Malathion, mancozeb, Oxidative Stress, PCOS, Permethrin, Reproductive Health, Thiamethoxam, vinclozolin, Women's Health | No Comments »
03
Apr
(Beyond Pesticides, April 3, 2025) As highlighted by Beyond Pesticides in recent comments to the U.S. Environmental Protection Agency (EPA), chlorpyrifos (CPF) has been under scrutiny for decades due to associated adverse health effects, noted particularly in the extensive and consistent scientific evidence of neurotoxic dangers to children’s health. The latest research on CPF, published in Environmental Toxicology and Genes & Diseases, reveals additional threats to the immune system and male reproduction that are not captured in current EPA risk assessments of chlorpyrifos and raises serious health questions, given that residues are found throughout the food supply. CPF, a widely used organophosphate insecticide in agriculture, is a cholinesterase inhibitor that binds irreversibly to the active site of an essential enzyme for normal nerve impulse transmission, acetylcholine esterase (AChE), inactivating the enzyme. Many insecticides, including organophosphates and carbamates, target AChE, causing them to be highly toxic to both insects and mammals that have this enzyme as a crucial part of their nervous systems. The history of chlorpyrifos exemplifies the failure of pesticide law and policy, as this chemical, among many others, not only has direct adverse health effects but is contributing to the climate crisis, biodiversity collapse, and disproportionate levels of […]
Posted in Agriculture, Cancer, Chlorpyrifos, Developmental Disorders, DNA Damage, Environmental Protection Agency (EPA), Immunotoxicity, Infertility, men's health, Oxidative Stress, Reproductive Health | No Comments »
02
Apr
(Beyond Pesticides, April 2, 2025) In examining prenatal residential proximity of documented pesticide spraying in California to the menstrual cycle characteristics of 273 Latina adolescents, researchers report in the American Journal of Epidemiology a positive association between exposure to the insecticide methomyl and heavy bleeding. Other pesticides appear to influence menstrual symptoms as well. “Adolescents’ menstrual cycle characteristics can be â€vital signs’ of health and impact quality of life,” the authors share. They continue, “To our knowledge, this is the first study to examine the association between prenatal pesticide exposure and menstrual outcomes in adolescents of any demographic group.” Menstrual cycle characteristics, such as dysmenorrhea (painful or uncomfortable menstrual cramps), irregularity, and heavy menstrual bleeding, can also be indicators of underlying health conditions, including endometriosis, polycystic ovary syndrome (PCOS), thyroid dysfunction, and bleeding disorders. By associating the pesticide exposure of mothers during pregnancy to impacts on their children, the researchers highlight important health risks for women and young girls that are often disregarded. “The prenatal period is a critical period of reproductive development that may be particularly sensitive to endocrine disruption,” the researchers share. As previously reported by Beyond Pesticides, endocrine-disrupting chemicals are any synthetic or natural compounds that hinder […]
Posted in Acephate, California, Children, Chlorpyrifos, Diazinon, Dimethoate, Endocrine Disruption, endometriosis, Environmental Protection Agency (EPA), Glyphosate, Imidacloprid, Malathion, mancozeb, Maneb, Methomyl, Oxidative Stress, PCOS, Permethrin, Reproductive Health, Women's Health | No Comments »
27
Mar
(Beyond Pesticides, March 27, 2025) In Ecotoxicology, results of a study on Nile tilapia (Oreochromis niloticus) exposed to florpyrauxifen-benzyl (FPX) suggest the new herbicide causes oxidative stress (imbalances affecting the body’s detoxification abilities that lead to cell and tissue damage), with specific genotoxic (damage to genetic material) and hepatotoxic (damage to the liver) effects on nontarget species. The authors state: “According to the available literature, no data exist on the toxicity of FPX in fish. Therefore, this study aims to investigate, for the first time, the potential toxicity and associated mechanistic effects of the pyridine-carboxylic acid herbicide (FPX) on the non-target species, Nile tilapia.” According to the Wisconsin Department of Natural Resources, “Florpyrauxifen-benzyl is a systemic herbicide (i.e., it moves throughout the plant tissue). It is a WSSA Group 4 herbicide, meaning that the mechanism of action is by mimicking the plant growth hormone auxin and causing excessive elongation of plant cells, ultimately killing the plant.” The researchers, from Menoufia University, the Agricultural Research Center, and Cairo University in Egypt, focus on FPX as it is the active ingredient in Divixton 2.5% EC, a newly released herbicide used in rice fields and applied directly to freshwater aquatic bodies for emergent […]
Posted in Aquatic Organisms, Biodiversity, florpyrauxifen-benzyl, Herbicides, Liver Damage, Oxidative Stress, Water | No Comments »
25
Mar
(Beyond Pesticides, March 25, 2025) An editorial in Expert Review of Cardiovascular Therapy finds that triazole fungicides pose a significant risk of cardiotoxicity with “growing concerns regarding their safety for human health, especially in long-term exposure,” the authors share. After analyzing the known mechanisms of cardiotoxicity of triazole pesticides in mammals, they conclude that “the most effective approach to mitigating triazole-induced cardiotoxicity lies in prevention.” Triazoles, a class of fungicides, target fungi by inhibiting the biosynthesis of ergosterol, an essential component of their cell membranes. As the researchers share, “Compounds such as tebuconazole, propiconazole, and difenoconazole are among the most used triazoles in agriculture.” Triazoles are utilized as antifungal medications, despite the rise of resistant infections, in addition to their use as systemic pesticides on many fruit and vegetable crops, including grapes, wheat, corn, and soybeans.  As Beyond Pesticides’ previous coverage indicates, many triazole fungicides in the U.S. are registered for use despite evidence of endocrine disruption established over a decade ago in a U.S. Geological Survey report. These pesticides exhibit common mechanisms of toxicity often disregarded in U.S. Environmental Protection Agency (EPA) risk assessments, with a multitude of studies showcasing the myriads of health threats that the agency does […]
Posted in Cardiovascular Disease, difenoconazole, Endocrine Disruption, Fungicides, Oxidative Stress, Propiconazole, tebuconazole | No Comments »
14
Mar
(Beyond Pesticides, March 14, 2025) Beyond Pesticides celebrates the life and legacy of Joan Dye Gussow, EdD, a leader in the organic and local food movements for decades. Dr. Gussow passed away at 96 years young on Friday, March 6, at her home in Rockland County, New York. As the matriarch of the “eat locally, think globally” movement (New York Times), Dr. Gussow embodied what it means to practice what you preach with decades of experience in pesticide-free, regenerative organic gardening, where she grew seasonal produce for her own consumption. In her book, The Feeding Web, Gussow explains why gardening matters: “Food comes from the land. We have forgotten that. If we do not learn it again, we will die….Are we not, in fact, more helpless than any people before us, less able to fend for ourselves, more cut off from sources of nourishment? What would we do if we could not get to the supermarket?” Dr. Gussow represents the values of community- and people-first organic principles in food and land management systems. By 1971, the year after she published her first book on the relationship between nutrition and children’s performance in school, Dr. Gussow was invited to testify before […]
Posted in Alternatives/Organics, Announcements, Regenerative, Uncategorized, Women's Health | No Comments »
11
Mar
(Beyond Pesticides, March 11, 2025) A study in Toxics analyzes ipconazole, a triazole fungicide often used as a coating on treated seeds and as a foliar treatment on the leaves of plants. “Triazole pesticides are widely used throughout the world, but their abuse causes toxic effects in non-targeted organisms,” the researchers state. In the current study, unintended reproductive effects are noted in male sheep (ram) and pigs (also known as porcine or swine). This research focuses on the impact of ipconazole exposure on spermatozoa (sperm) in two mammal species and finds spermiotoxicity through significantly reduced sperm viability, as well as alterations in enzyme and gene expression related to fertility. “To our knowledge, this is the first study to evaluate the cytotoxic effect of the triazole ipconazole on mammalian spermatozoa,” the authors share. This analysis utilizes semen samples from the Reproductive Biotechnology Laboratory of the Major National University of San Marcos in Lima, Peru, the university where six of the nine researchers are Faculty of Veterinary Medicine.  “The sperm were exposed to ipconazole concentrations of 1, 5, 10, 50 and 100 µM, and to a control without ipconazole,” they say. Similar concentrations have been used in previous cytotoxicity studies with ipconazole. […]
Posted in difenoconazole, Endocrine Disruption, Epigenetic, Infertility, Ipconazole, Livestock, men's health, Oxidative Stress, Peru, Reproductive Health, tebuconazole | No Comments »
10
Mar
(Beyond Pesticides, March 10, 2025) Following International Women’s Day, celebrated on March 8, 2025, the poignant findings on women, gender, and hazardous substances in a United Nations report raise critical issues of concern and cause for urgent action to phase out petrochemicals. The Report of the Special Rapporteur on the implications for human rights of the environmentally sound management and disposal of hazardous substances and wastes, by Marcos Orellana, was delivered to the 79th Session of the United Nations General Assembly in July 2024. Excerpts from the report follow: “Women make up roughly 60 to 70 per cent of the agricultural labour force in developing countries where pesticides and pesticide handling are especially poorly regulated. In Zambia, for example, two thirds of the labour force is engaged in agriculture, and 78 per cent are women farmers and peasants. Women there play a significant role in pesticide application, often without any or adequate personal protective equipment, especially during activities such as weeding, harvesting, and washing pesticide-laden clothes.” “In higher-income countries, women who do agricultural work are often poor and/or migrants; pesticides are one of many dimensions of marginalization and damage to their well-being. The European agriculture sector uses many seasonal and […]
Posted in Agriculture, Alternatives/Organics, Breast Cancer, Cancer, Endocrine Disruption, Environmental Justice, Environmental Protection Agency (EPA), Farmworkers, Take Action, Uncategorized | No Comments »
07
Mar
(Beyond Pesticides, March 7, 2025) In honor of International Women’s Day on Saturday, March 8, 2025, Beyond Pesticides sheds light on the disproportionate risks to women from toxic chemicals that are often unaccounted for and even dismissed throughout pesticide regulatory review and the underlying statutes. In a roundup of Daily News coverage in 2024, as well as the most recent scientific studies in 2025, on the scientific links between pesticide exposure and adverse effects in women, this article highlights the growing inequities in pesticide threats to women’s health. Women farmers and farmworkers are particularly excluded when assessing pesticide risks. As previously reported by Beyond Pesticides, a study published in Occupational and Environmental Medicine finds that pesticide exposure, especially during puberty, can play a role in ovarian cancer development among female farmers. Although there are many studies that evaluate the risk for cancers among farmers, very few scientific articles cover the risk of ovarian cancer from pesticide exposure. Additionally, this study suggests the role of hormones in ovarian cancer prognosis and development, highlighting an association with endocrine disruption. Endocrine disruption can lead to numerous health problems in multiple organ systems, including hormone-related cancer development (e.g., thyroid, breast, ovarian, prostate, testicular), reproductive […]
Posted in Breast Cancer, Cancer, Endocrine Disruption, Farmworkers, Holidays, Occupational Health, Reproductive Health, Women's Health | 1 Comment »
25
Feb
(Beyond Pesticides, February 25, 2025) A literature review of over 90 scientific articles in Agriculture documents microplastics’ (MPs) increase in the bioavailability, persistence, and toxicity of pesticides used in agriculture. The interactions between MPs and pesticides enhance the threat of pesticide exposure to nontarget organisms, perpetuates the cycle of toxic chemical use, and decreases soil health that is vital for productivity. “The increasing presence of MPs in agricultural ecosystems has raised concerns about their impact on pesticide bioavailability, efficacy, and environmental behavior,” says study author Kuok Ho Daniel Tang, PhD, a global professor in the Department of Environmental Science at the University of Arizona. He continues, “These synthetic particles interact with pesticides through adsorption and desorption processes, altering their distribution, persistence, toxicity, and uptake by plants and other organisms.” Microplastics in the Environment As Beyond Pesticides has previously reported, microplastics are ubiquitous and threaten not only human health but all wildlife in both aquatic and terrestrial ecosystems. The universal distribution of plastics means that they cannot be avoided. Humans and other organisms take up plastics in the form of microparticles and nanoparticles by inhalation, ingestion, and skin contact every day. Microplastics are about the width of a human hair; nanoplastics […]
Posted in Agriculture, Alternatives/Organics, Atrazine, Azoxystrobin, Biosolids, Carbendazim, Chlorpyrifos, Imidacloprid, Metolachlor, Myclobutanil, National Organic Standards Board/National Organic Program, neonicotinoids, Oxidative Stress, Persistence, Pesticide Efficacy, Plastic, pyraclostrobin, simazine, soil health, synergistic effects, tebuconazole | 1 Comment »
14
Feb
(Beyond Pesticides, February 14, 2025) A study in the European Journal of Preventive Cardiology finds that organic food consumption lowers the risk of developing atherosclerotic cardiovascular disease (ASCVD). Heart health is important not just on Valentine’s Day, but every day. While celebrating with friends and family, consider spreading love in ways that promote long-term health and wellness with an organic meal paired with organic flowers and chocolates. Eliminating exposure to petrochemical pesticides and synthetic fertilizers, such as with an organic diet, mitigates disease risks including brain and nervous system disorders, cancer, endocrine disruption, and cardiovascular disease (CVD). In this latest study, the scientists and doctors analyze registered diagnoses of ASCVD from the Danish National Patient Register in comparison with the diets of a cohort of middle-aged women and men from the Danish Diet, Cancer and Health study. The eligible study participants, including 41,407 men and women of which 5,365 developed ASCVD, filled in a detailed 192-item food frequency questionnaire and a lifestyle questionnaire on their consumption of organic vegetables, fruit, dairy products, eggs, meat, and bread and cereal products. The authors report that the results show overall organic food consumption is associated with a 6% lower incidence rate of ASCVD. […]
Posted in Alternatives/Organics, Cardiovascular Disease, Holidays, men's health, Oxidative Stress, Pesticide Residues, Women's Health | No Comments »
11
Feb
(Beyond Pesticides, February 11, 2025) In a Science of The Total Environment study, scientists test over 100 blue tit (Cyanistes caeruleus) and great tit (Parus major) birds’ nests for pesticide residues in comparison with the number of dead offspring and unhatched eggs within the nest. Fur-lined nests, from animals treated with ectoparasitic chemicals, expose birds to compounds that can impact reproductive success. The authors found fipronil, a phenyl pyrazole insecticide, in all nests, with the majority also containing the neonicotinoid insecticide imidacloprid and synthetic pyrethroid insecticide permethrin. The data shows higher insecticide levels are linked to increased offspring mortality and threaten biodiversity. This study highlights an important exposure route that is overlooked. “Although not all bird species use fur for nest building, a substantial number do, especially cavity-nesting species,” the researchers share. “Previous research found that 74% of studied woodland bird species in central Europe incorporated fur into their nests.” Many bird species in the U.S. also line their nests with fur, such as black-capped chickadees, tufted titmice, and chipping sparrows. While there is a wide body of science showing reproductive effects from pesticides, the researchers highlight the study’s novel design, saying, “To the best of our knowledge, no previous […]
Posted in Birds, cypermethrin, Death, dinotefuron, Ecosystem Services, Fipronil, Imidacloprid, neonicotinoids, Permethrin, Pesticide Residues, Pets, pyrethroids, Reproductive Health, Synthetic Pyrethroid, Wildlife/Endangered Sp. | No Comments »
30
Jan
(Beyond Pesticides, January 30, 2025) A research article in Biology Letters, published by The Royal Society, finds that the neonicotinoid insecticide imidacloprid disrupts survival and reproductive patterns in Bombus impatiens bumblebees. The study adds to the wide body of science highlighting how exposure to pesticides “can result in immediate mortality or cause long-term detrimental effects on pollinators‘ health, lifespan and reproductive success,” the authors state. The researchers performed two experiments to assess the effects of various concentrations of imidacloprid, one of which focuses on bees during diapause, a period of dormancy. “Wild bees, which provide the majority of pollination services worldwide, undergo an annual life cycle that includes a winter diapause, that can span over 75% of their life cycle and during which their metabolism, growth and development are halted,” the authors note. They continue: “The time spent in diapause can have lasting effects on pollinator fitness and their ability to establish nests or colonies in the following spring. This period is especially critical for social bee colonies, which are founded by a single queen after diapause and play a vital role in large-scale pollination.” Exposure to pesticides during diapause can occur while bee species overwinter in contaminated soils. In […]
Posted in Beneficials, Biodiversity, Ecosystem Services, Environmental Protection Agency (EPA), Imidacloprid, neonicotinoids, Pollinators, Reproductive Health | No Comments »
16
Jan
(Beyond Pesticides, January 16, 2025) In Ecotoxicology and Environmental Safety, researchers highlight a multitude of studies on endocrine disrupting chemicals (EDCs) and endocrine disrupting pesticides (EDPs) showing epigenetic effects from exposure. These EDCs imitate the action of endocrine hormones and lead to gene damage and multigenerational adverse effects to health. “These chemicals can interfere with the normal functioning of target tissues by altering their response to hormonal signals, thereby affecting various physiological processes including reproduction, development, the nervous system, the immune system, and even the process of carcinogenesis [causing cancer],” according to the authors from Hebei Agricultural University and Chinese Academy of Agricultural Sciences.  In causing epigenetic modifications, the authors describe that EDCs can create changes “at the nuclear and mitochondrial DNA (nDNA and mtDNA) or RNA levels, without changing the underlying DNA sequence. These alterations modify the structure or conformation of DNA, influencing gene expression and, consequently, cellular function.” They continue, “The mechanisms of epigenetics include changes in DNA methylation, chromatin modifications and the involvement of certain noncoding RNAs.” In reviewing over 80 studies on EDCs, predominantly fluorinated compounds such as per- and polyfluoroalkyl substances (PFAS), the researchers provide a summary of linkages between pesticide exposure and the […]
Posted in Body Burden, Cyfluthrin, DDT, Endocrine Disruption, Endosulfan, Epigenetic, Fipronil, Glyphosate, hexachlorobenzene (HCB), Imidacloprid, Metolachlor, PFAS, Sulfoxaflor, Trifluralin | No Comments »
14
Jan
(Beyond Pesticides, January 14, 2025) Women with occupational pesticide exposure have elevated rates of breast cancer, according to a study in Immunopharmacology and Immunotoxicology. Based on an analysis of clinicopathological data from 188 affected women, the study authors demonstrate “that occupational exposure to pesticides modifies the clinical presentation of disease in breast cancer patients, depending on their age at disease onset, affecting cytokine production, especially in those exhibiting early age at diagnosis.”  “Breast cancer (BC) is the most common malignant neoplasm affecting women worldwide and the second leading cause of cancer-related death in this population,” the researchers report. They continue: “Aging is the primary risk factor associated with breast cancer development and mortality, resulting in a cumulative lifetime risk of 1 in 8 women developing the disease. Disease onset significantly impacts patient prognosis. While most cases are of late onset and occur in women over 50 years of age, early-onset BC is prevalent in certain populations and is associated with a poor prognosis and aggressive tumor behavior.” Data was collected and analyzed from May 2015 to December 2022, with the study population in Brazil spanning “27 municipalities in the southwest of Paraná, a region characterized by extensive pesticide use, predominantly […]
Posted in Breast Cancer, Cancer, Farmworkers, Occupational Health, Oxidative Stress, Women's Health | No Comments »
09
Jan
(Beyond Pesticides, January 9, 2025) In a Frontiers in Public Health review article, researchers report on the wide body of science connecting adverse effects to female reproductive system, such as infertility, with exposure to endocrine-disrupting chemicals (EDCs). The authors call these effects a significant concern for public health, as there has been growing evidence of EDCs with risk factors for decreased fertility.  Infertility “affects a substantial proportion of the world’s population with approximately one in six people affected,” the researchers note. They continue: “Over the last 70 years, global fertility has been constantly in decline due to behavioral and societal changes… [E]merging evidence has shown that infertility incidence is linked to exposure to environmental factors such as tobacco, alcohol, and a wide range of endocrine-disrupting chemicals (EDCs) including pesticides (chlorpyrifos, glyphosate, dichlorodiphenyltrichloroethane [DDT] and methoxychlor), phthalates, polychlorinated biphenyls (PCB), dioxins, and bisphenols.” In this review, over 100 studies are summarized to showcase the link between EDC exposure and reproductive effects in women, including infertility and related diseases such as endometriosis, premature ovarian insufficiency (POI), and endocrine axis dysregulation. The studies included investigating the “mechanisms by which EDCs cause ovarian aging, folliculogenesis, decrease of oocyte quality, ovulation disorders, development and receptivity […]
Posted in Atrazine, Children, Chlorpyrifos, DDT, endometriosis, Endosulfan, Glyphosate, Infertility, Reproductive Health, Women's Health | No Comments »
17
Dec
(Beyond Pesticides, December 17, 2024) A systematic review of studies on pesticides as endocrine-disrupting chemicals (EDCs) on body weight, published in Biomedicines, evaluates 36 clinical and preclinical studies and links their agricultural use to obesity. The authors, with the lead researchers from the School of Medicine and Health Sciences at Catholic University of Valencia San Vincente, Valencia, Spain, assess studies on a range of pesticides, including organophosphates, pyrethroids, neonicotinoids, and others. In addition to concluding that the EDCs promote obesity, they report that the chemicals cause “other anthropometric changes by altering lipid and glucose metabolism, modifying genes, or altering hormone levels such as leptin.” Endocrine disruption and obesity are public health concerns, and there is a wide body of science linking pesticide exposure to these effects (see more here). “Obesity is considered to be a worldwide pandemic that leads to an increase in medical costs and thus becomes a public health problem,” the researchers share. They continue, “[Obesity] is also associated with the increased production of environmental chemicals, also called environmental obesogens, used mainly in agriculture, as disease vector control, helping to prevent harmful effects caused by fungi, bacteria, or even pests, using pesticides, insecticides, and herbicides, or endocrine disruptors […]
Posted in 2,4-D, acetamiprid, Benomyl, Bifenthrin, Carbamates, Carbendazim, Chlorpyrifos, Clothianidin, cypermethrin, Dicamba, Diuron, Endocrine Disruption, Fenoxycarb, Fipronil, Fungicides, Glyphosate, Imidacloprid, Isoxafutole, Malathion, mancozeb, Maneb, neonicotinoids, Obesity, organophosphate, Permethrin, Synthetic Pyrethroid, Thiamethoxam | No Comments »
16
Dec
(Beyond Pesticides, December 16, 2024) The fact that three-quarters of all U.S. fruits and nuts and one-third of all U.S. vegetables are grown in California means that all U.S. food eaters have a stake in how food is grown there. California is proposing the continued use of the fumigant 1,3-dichloropropene (1,3-D, also known as Telone), which can cause deadly effects to farmworkers and endocrine disrupting effects to communities of people exposed through nontarget chemical drift from farmland. So, it is with deep concern that Beyond Pesticides is urging the state of California, where the chemical is undergoing review, to ban the toxicant. Endocrine disruption, an adverse effect for which the U.S. Environmental Protection Agency (EPA) has never completed a pesticide testing protocol, adversely affects the functioning of glands and hormones and is linked to major life-threatening diseases in most organ systems in the body—contributing to attention deficit hyperactivity disorder (ADHD), Parkinson’s, Alzheimer’s, diabetes, cardiovascular disease, obesity, early puberty, infertility and other reproductive disorders, and childhood and adult cancers. In a recently released draft regulation, the California Department of Pesticide Regulation (CDPR) will allow highly elevated exposure to 1,3-D, ignoring the scientific literature and advice of the state’s own toxicologists at […]
Posted in 1, 3-dichloropropene, 1-3D, ADHD, Agriculture, Alzheimers's, Cancer, Diabetes, Endocrine Disruption, Obesity, Parkinson's, Telone, Uncategorized | 3 Comments »
12
Dec
(Beyond Pesticides, December 12, 2024) A literature review of 161 articles in Discover Toxicology finds that pesticides with different mechanisms of action cause memory and learning impairments. These effects are noted in nontarget species including humans. Pesticide “[e]xposure during development, as well as chronic environmental and occupational exposure, can contribute to decreased cognitive performance,” the researchers say. With a focus on organophosphate pesticides, synthetic pyrethroids, and neonicotinoid insecticides, the authors highlight neurological impacts. Both learning and memory are crucial for the survival of many species. “Considering the importance of learning and memory for human and non-human animal behavior and the growing association between pesticide exposure and cognitive impairment, the aim of this review was to describe the studies showing the impact of pesticide exposure on memory and learning abilities in nontarget species, providing evidence of the impact of pesticides in central nervous system function,” the researchers state. The 161 articles included in the review were identified through database searches in PubMed/Medline and Scielo. The authors note, “Inclusion criteria for article selection included all articles published in English between 2015 and 2024 containing original studies in animals or humans with single or multiple pesticides exposure.” The articles consist of 132 preclinical […]
Posted in behavioral and cognitive effects, Bifenthrin, Brain Effects, Carbamates, Children, Chlorpyrifos, Clothianidin, Cyfluthrin, cypermethrin, Deltamethrin, Diazinon, Farmworkers, Flumethrin, Glyphosate, Imidacloprid, Learning Disabilities, Malathion, mancozeb, neonicotinoids, organophosphate, Oxidative Stress, Permethrin, Pollinators, pyrethroids, Synthetic Pyrethroid, thiacloprid, Thiamethoxam | No Comments »
13
Nov
(Beyond Pesticides, November 13, 2024) A study in Chemosphere, conducted by researchers from the Institute of Biochemistry and Molecular Biology in Germany, reveals the varied lethal and sublethal effects of different glyphosate mixtures through tests on the South African clawed frog, Xenopus laevis (X. laevis). After exposing embryos to four glyphosate formulations, mortality, morphological defects, altered heartbeat rate, and impaired heart-specific gene expression are observed. Glyphosate, an herbicide and popular weed killer in many Roundup® products, is one of the most commonly detected pesticides in waterbodies worldwide, threatening aquatic organisms and overall biodiversity. This study investigates the effects of Glyphosat TF, Durano TF, Helosate 450 TF, and Kyleo, four formulations containing glyphosate, as compared to the effects of pure glyphosate on embryonic development in amphibians. The formulations consist of varying concentrations of the active ingredient glyphosate, as well as other active and inert ingredients. The authors share that, “Glyphosat TF contains 34% glyphosate and 10–20% d-glucopyranose, while Durano contains 39–44% glyphosate and 1–5% N–N-dimethyl-C12-C14-(even numbered)-alkyl-1-amines. In Helosate most of the ingredients are listed – 50–70% glyphosate, 1–10% isopropylamine, 1–3% lauryl dimethyl betaine, 0.25–1% dodecyl dimethylamine. Kyleo only lists the active ingredients glyphosate (27.9%) and 2,4-D (32%).” 2-cell stage embryos (early […]
Posted in 2,4-D, Aquatic Organisms, Biodiversity, Chemical Mixtures, Death, Developmental Disorders, DNA Damage, Endocrine Disruption, Environmental Protection Agency (EPA), Epigenetic, Glyphosate, Herbicides, Pesticide Mixtures, synergistic effects | No Comments »