Ivermectin (IVM) is used as antiparasitic drug in veterinary medicine and it is also the only avermectin approved in humans in several parasitic infestations. We examined this substance because potential critical issues associated with the use were highlighted. Moreover, criticisms related to the ecological-environmental sphere, as well as food contamination arise. Nevertheless, current in vitro studies are lacking. This study aimed to investigate the direct impact of IVM on reproductive function using swine granulosa cells as reproductive cell model. The results show that progesterone, ATP and free radicals’ levels significantly increased (p < 0.05). Non-enzymatic defense systems as well as autophagy did not show significant differences. On the contrary, cell proliferation, estradiol levels, and enzymatic defense systems significantly decreased (p < 0.05) after IVM treatment. Since results show that the normal function of these cells is compromised by IVM the normal reproductive functions of the entire organism could be disrupted.
{"title":"Evaluation of the ivermectin effects on porcine granulosa cell function","authors":"Giuseppina Basini, Fausto Quintavalla, Simona Bussolati, Francesca Grasselli","doi":"10.1016/j.etap.2026.104960","DOIUrl":"10.1016/j.etap.2026.104960","url":null,"abstract":"<div><div>Ivermectin (IVM) is used as antiparasitic drug in veterinary medicine and it is also the only avermectin approved in humans in several parasitic infestations. We examined this substance because potential critical issues associated with the use were highlighted. Moreover, criticisms related to the ecological-environmental sphere, as well as food contamination arise. Nevertheless, current in vitro studies are lacking. This study aimed to investigate the direct impact of IVM on reproductive function using swine granulosa cells as reproductive cell model. The results show that progesterone, ATP and free radicals’ levels significantly increased (p < 0.05). Non-enzymatic defense systems as well as autophagy did not show significant differences. On the contrary, cell proliferation, estradiol levels, and enzymatic defense systems significantly decreased (p < 0.05) after IVM treatment. Since results show that the normal function of these cells is compromised by IVM the normal reproductive functions of the entire organism could be disrupted.</div></div>","PeriodicalId":11775,"journal":{"name":"Environmental toxicology and pharmacology","volume":"123 ","pages":"Article 104960"},"PeriodicalIF":4.2,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146146590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
As algae are the main route of selenium (Se) transport from water to other consumers in food webs, the effect of selenite on the total Se content, growth, and antioxidant status of the unicellular green alga Monoraphidium cf. contortum was determined. The basal Se content (<3 mg/kg DW) was lower compared to other green microalgae, but the species showed a high accumulation potential (284.1 mg/kg DW). Despite early Se accumulation and growth inhibition, a significant loss of chlorophylls and carotenoids was observed only after 72 h. The response of antioxidative enzymes corresponded to a lower intensity of lipid peroxidation, despite increased ROS content at lower selenite concentrations. Primarily, selenite increased the activities of ascorbate peroxidase (APX), glutathione reductase, glutathione peroxidase (GPX), and glutathione S-transferase (GST), and inhibited catalase (CAT) in almost all treatments. Higher GST and GPX activities, as well as selenite-induced non-enzymatic glutathione (GSH) oxidation indicated increased GSH depletion.
{"title":"Selenium modulates the antioxidative response in green microalga Monoraphidium cf. contortum","authors":"Dubravka Špoljarić Maronić , Ivna Štolfa Čamagajevac , Tanja Žuna Pfeiffer , Ana Pilipović , Nikolina Sabo , Nikolina Bek , Filip Stević , Ivana Maksimović , Anita Galir , Zdenko Lončarić","doi":"10.1016/j.etap.2026.104958","DOIUrl":"10.1016/j.etap.2026.104958","url":null,"abstract":"<div><div>As algae are the main route of selenium (Se) transport from water to other consumers in food webs, the effect of selenite on the total Se content, growth, and antioxidant status of the unicellular green alga <em>Monoraphidium</em> cf. <em>contortum</em> was determined. The basal Se content (<3 mg/kg DW) was lower compared to other green microalgae, but the species showed a high accumulation potential (284.1 mg/kg DW). Despite early Se accumulation and growth inhibition, a significant loss of chlorophylls and carotenoids was observed only after 72 h. The response of antioxidative enzymes corresponded to a lower intensity of lipid peroxidation, despite increased ROS content at lower selenite concentrations. Primarily, selenite increased the activities of ascorbate peroxidase (APX), glutathione reductase, glutathione peroxidase (GPX), and glutathione S-transferase (GST), and inhibited catalase (CAT) in almost all treatments. Higher GST and GPX activities, as well as selenite-induced non-enzymatic glutathione (GSH) oxidation indicated increased GSH depletion.</div></div>","PeriodicalId":11775,"journal":{"name":"Environmental toxicology and pharmacology","volume":"123 ","pages":"Article 104958"},"PeriodicalIF":4.2,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146146592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-04-01Epub Date: 2026-02-09DOI: 10.1016/j.etap.2026.104959
A K M Munzurul Hasan , Som Niyogi , Douglas P. Chivers
Bisphenol S (BPS), increasingly used as a substitute for Bisphenol A, has raised toxicological concern due to its environmental persistence and widespread exposure. Zebrafish (Danio rerio) provides a valuable model for assessing BPS toxicity because of conserved endocrine and neural pathways, rapid development, and well-established behavioural assays. This review synthesizes current evidence on the effects of BPS exposure in zebrafish. Available studies indicate that BPS is associated with alterations in multiple endocrine axes, including the hypothalamic-pituitary-gonadal, thyroid, and interrenal axes, with consequences for reproduction, thyroid hormone signaling, and stress regulation. Neurobehavioural alterations are frequently reported and are linked to oxidative stress, apoptosis, neurotransmitter imbalance, and isotocinergic or vasotocinergic dysregulation. Additional evidence associates BPS exposure with metabolic, cardiovascular, and immune alterations, including hepatic lipid accumulation, glucose dysregulation, vascular dysfunction, impaired myelopoiesis, inflammatory signaling, and gut microbial imbalance. Finally, this review highlights key knowledge gaps for future research.
{"title":"Bisphenol S toxicity in zebrafish: Endocrine, neurobehavioural, and metabolic disruptions","authors":"A K M Munzurul Hasan , Som Niyogi , Douglas P. Chivers","doi":"10.1016/j.etap.2026.104959","DOIUrl":"10.1016/j.etap.2026.104959","url":null,"abstract":"<div><div>Bisphenol S (BPS), increasingly used as a substitute for Bisphenol A, has raised toxicological concern due to its environmental persistence and widespread exposure. Zebrafish (<em>Danio rerio</em>) provides a valuable model for assessing BPS toxicity because of conserved endocrine and neural pathways, rapid development, and well-established behavioural assays. This review synthesizes current evidence on the effects of BPS exposure in zebrafish. Available studies indicate that BPS is associated with alterations in multiple endocrine axes, including the hypothalamic-pituitary-gonadal, thyroid, and interrenal axes, with consequences for reproduction, thyroid hormone signaling, and stress regulation. Neurobehavioural alterations are frequently reported and are linked to oxidative stress, apoptosis, neurotransmitter imbalance, and isotocinergic or vasotocinergic dysregulation. Additional evidence associates BPS exposure with metabolic, cardiovascular, and immune alterations, including hepatic lipid accumulation, glucose dysregulation, vascular dysfunction, impaired myelopoiesis, inflammatory signaling, and gut microbial imbalance. Finally, this review highlights key knowledge gaps for future research.</div></div>","PeriodicalId":11775,"journal":{"name":"Environmental toxicology and pharmacology","volume":"123 ","pages":"Article 104959"},"PeriodicalIF":4.2,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146146591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-03-21DOI: 10.1016/j.etap.2026.104996
Octavio Ispanixtlahuatl-Meraz, Alejandro Déciga-Alcaraz, Marisela Uribe-Ramírez, Josefina Poblano-Bata, Andrea De Vizcaya-Ruiz, Omar Amador-Muñoz, Yolanda I. Chirino
{"title":"Nuclear and cytoskeletal structural alterations in human alveolar epithelial cells by solvent-extracted organic matter from PM2.5","authors":"Octavio Ispanixtlahuatl-Meraz, Alejandro Déciga-Alcaraz, Marisela Uribe-Ramírez, Josefina Poblano-Bata, Andrea De Vizcaya-Ruiz, Omar Amador-Muñoz, Yolanda I. Chirino","doi":"10.1016/j.etap.2026.104996","DOIUrl":"https://doi.org/10.1016/j.etap.2026.104996","url":null,"abstract":"","PeriodicalId":11775,"journal":{"name":"Environmental toxicology and pharmacology","volume":"10 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2026-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147495993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-03-21DOI: 10.1016/j.etap.2026.105005
Ítalo B.L Andrade, Lílian C Pereira, Carla Quintaneiro, Amadeu M.V.M Soares, Marta S Monteiro
{"title":"Metabolic pathway modulation and oxidative imbalance triggered by decamethylcyclopentasiloxane (D5) in zebrafish embryo","authors":"Ítalo B.L Andrade, Lílian C Pereira, Carla Quintaneiro, Amadeu M.V.M Soares, Marta S Monteiro","doi":"10.1016/j.etap.2026.105005","DOIUrl":"https://doi.org/10.1016/j.etap.2026.105005","url":null,"abstract":"","PeriodicalId":11775,"journal":{"name":"Environmental toxicology and pharmacology","volume":"7 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2026-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147495990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-03-20DOI: 10.1016/j.etap.2026.105001
Eliška Beranová, Silvie Dostálková, Marek Petřivalský, Per Kryger, Jiří Danihlík
Varroa destructor is the most significant pest of honey bees worldwide, and oxalic acid (OA) is widely used for its control. However, its effects on brood physiology remain unclear. We examined the impact of oxalic acid-glycerine (OA-G) strips and chalkbrood (Ascosphaera apis) infection on gene expression in Apis mellifera prepupae. Twelve colonies were assigned to control, OA-G, A. apis, and combined OA-G + A. apis groups. Gene expression of antimicrobial peptides (AmPs), vitellogenin (Vg), and Vg-like B was analyzed seven days post-treatment using RT-qPCR. OA-G treatment significantly upregulated defensin1 and hymenoptaecin in both healthy and infected brood, indicating strong immune activation. In contrast, abaecin was downregulated, while apidaecin increased only under infection. Vitellogenin was consistently suppressed across all treatments, whereas Vg-like B remained unchanged. These results demonstrate differential immune and nutritional trade-offs in brood following OA exposure and infection, underscoring the complex physiological consequences of varroosis management.
瓦螨是世界范围内危害蜜蜂最严重的害虫,草酸被广泛用于其防治。然而,其对雏鸟生理的影响尚不清楚。研究草酸甘油(OA-G)条和白垩菌(Ascosphaera apis)感染对蜜蜂预蛹基因表达的影响。12个菌落分为对照组、OA-G组、a - g组和OA-G + a - api组合组。使用RT-qPCR分析治疗后7天抗菌肽(AmPs)、卵黄蛋白原(Vg)和卵黄蛋白样B的基因表达。OA-G处理显著上调了健康和感染雏鸟的防御素1和膜蜂素,表明有很强的免疫激活作用。相比之下,abaecin被下调,而apidaecin仅在感染下升高。在所有处理中,卵黄原蛋白一直受到抑制,而vg样B保持不变。这些结果表明,在OA暴露和感染后,雏鸟的免疫和营养权衡存在差异,强调了静脉曲张管理的复杂生理后果。
{"title":"Gene expression signatures of honey bee brood reveal immune stimulation and nutritional trade-offs under oxalic acid treatment and chalkbrood disease","authors":"Eliška Beranová, Silvie Dostálková, Marek Petřivalský, Per Kryger, Jiří Danihlík","doi":"10.1016/j.etap.2026.105001","DOIUrl":"https://doi.org/10.1016/j.etap.2026.105001","url":null,"abstract":"Varroa destructor is the most significant pest of honey bees worldwide, and oxalic acid (OA) is widely used for its control. However, its effects on brood physiology remain unclear. We examined the impact of oxalic acid-glycerine (OA-G) strips and chalkbrood (Ascosphaera apis) infection on gene expression in Apis mellifera prepupae. Twelve colonies were assigned to control, OA-G, A. apis, and combined OA-G + A. apis groups. Gene expression of antimicrobial peptides (AmPs), vitellogenin (Vg), and Vg-like B was analyzed seven days post-treatment using RT-qPCR. OA-G treatment significantly upregulated defensin1 and hymenoptaecin in both healthy and infected brood, indicating strong immune activation. In contrast, abaecin was downregulated, while apidaecin increased only under infection. Vitellogenin was consistently suppressed across all treatments, whereas Vg-like B remained unchanged. These results demonstrate differential immune and nutritional trade-offs in brood following OA exposure and infection, underscoring the complex physiological consequences of varroosis management.","PeriodicalId":11775,"journal":{"name":"Environmental toxicology and pharmacology","volume":"16 1","pages":"105001"},"PeriodicalIF":4.3,"publicationDate":"2026-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147496538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-03-14DOI: 10.1016/j.etap.2026.104995
Sofie Juul Fulton, Jonas Christian Lunen, Stinna Skaaby, Poul Frost
Danish solid-waste incineration workers may be exposed to dust, containing metals including lead. While negative implications of higher levels of lead and dust exposure are well established, the health effects of contemporary low-level exposure remain unclear. This cross-sectional biomonitoring study among 55 male incineration workers compared blood lead levels and FEV₁ between 31 dusty-task workers and 24 controls using multivariable regression. None of the participants had blood lead exceeding the Danish upper reference value (<0.53 µmol/L). Workers exposed to dusty tasks (n=31) had higher blood lead and a 2.1-fold higher prevalence of blood lead ≥0.1 µmol/L compared to controls. FEV₁ was lower in exposed workers (3.5L; 90% predicted) compared to controls (4.2L; 102% predicted), but this difference was non-significant after adjustment for confounders. Findings indicate persistent low-level lead exposure in Danish solid-waste incineration settings, underscoring the need for continued exposure controls and proper use of personal protective equipment.
{"title":"Blood lead and lung function in Danish solid-waste incineration workers: A cross-sectional study","authors":"Sofie Juul Fulton, Jonas Christian Lunen, Stinna Skaaby, Poul Frost","doi":"10.1016/j.etap.2026.104995","DOIUrl":"https://doi.org/10.1016/j.etap.2026.104995","url":null,"abstract":"Danish solid-waste incineration workers may be exposed to dust, containing metals including lead. While negative implications of higher levels of lead and dust exposure are well established, the health effects of contemporary low-level exposure remain unclear. This cross-sectional biomonitoring study among 55 male incineration workers compared blood lead levels and FEV₁ between 31 dusty-task workers and 24 controls using multivariable regression. None of the participants had blood lead exceeding the Danish upper reference value (<0.53 µmol/L). Workers exposed to dusty tasks (n=31) had higher blood lead and a 2.1-fold higher prevalence of blood lead ≥0.1 µmol/L compared to controls. FEV₁ was lower in exposed workers (3.5<ce:hsp sp=\"0.25\"></ce:hsp>L; 90% predicted) compared to controls (4.2<ce:hsp sp=\"0.25\"></ce:hsp>L; 102% predicted), but this difference was non-significant after adjustment for confounders. Findings indicate persistent low-level lead exposure in Danish solid-waste incineration settings, underscoring the need for continued exposure controls and proper use of personal protective equipment.","PeriodicalId":11775,"journal":{"name":"Environmental toxicology and pharmacology","volume":"100 1","pages":"104995"},"PeriodicalIF":4.3,"publicationDate":"2026-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147464773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-03-13DOI: 10.1016/j.etap.2026.104994
Ardie Barry Sailis, Muhamad Alfakri Mat Noh, Leo Bey Fen, Farid Nazer Faruqu, Anne Yee, Sim Maw Shin
{"title":"MicroRNA-mediated disruption of testosterone signaling associated with e-cigarette exposure","authors":"Ardie Barry Sailis, Muhamad Alfakri Mat Noh, Leo Bey Fen, Farid Nazer Faruqu, Anne Yee, Sim Maw Shin","doi":"10.1016/j.etap.2026.104994","DOIUrl":"https://doi.org/10.1016/j.etap.2026.104994","url":null,"abstract":"","PeriodicalId":11775,"journal":{"name":"Environmental toxicology and pharmacology","volume":"60 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2026-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147448007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}