Toxicological & Environmental Chemistry最新文献_第3页

Impaired memory by hippocampal oxidative stress in rats exposed to 900 MHz electromagnetic fields is ameliorated by thymoquinone 百里醌可改善900 MHz电磁场下大鼠海马氧化应激引起的记忆损伤

Toxicological & Environmental Chemistry Pub Date : 2022-01-02 DOI: 10.1080/02772248.2022.2051509

S. Ustunova, Aysun Kılıç, H. Bulut, E. Gurel-Gurevin, A. H. Eriş, I. Meral

引用次数: 2

Mycorrhizal fungi, biochar, and selenium increase biomass of Vigna radiata and reduce arsenic uptake 菌根真菌、生物炭和硒增加辐射藤蔓的生物量，减少砷的吸收

Toxicological & Environmental Chemistry Pub Date : 2022-01-02 DOI: 10.1080/02772248.2022.2028790

M. Z. Alam, Md. Anamul Hoque, L. Carpenter-Boggs

引用次数: 2

Simulation of Cadmium and Lead Uptake into Saliva from Children's Pacifiers using the Joint Expert Speciation System 使用联合专家物种分类系统模拟儿童奶嘴对唾液中镉和铅的吸收

Toxicological & Environmental Chemistry Pub Date : 2022-01-02 DOI: 10.1080/02772248.2022.2028791

Boniphace E. Majinyali, Paul W. Jones

{"title":"Simulation of Cadmium and Lead Uptake into Saliva from Children's Pacifiers using the Joint Expert Speciation System","authors":"Boniphace E. Majinyali, Paul W. Jones","doi":"10.1080/02772248.2022.2028791","DOIUrl":"https://doi.org/10.1080/02772248.2022.2028791","url":null,"abstract":"Abstract The ingestion of certain trace metals has been a major concern of the world and there have been links to cancer, renal failure, anemia, cardiovascular and reproductive complications. Pacifiers are amongst the childcare objects that may expose children to potentially toxic metals through mouthing behaviors. Despite high levels of hazardous chemicals reported in some childcare products including pacifiers, there has been limited information on the chemical species formed in saliva and as a result their bioavailability levels. Using the Joint Expert Speciation System, this study determined chemical speciation and predicted bioavailability at a range of 18–92% for cadmium and 1–23% for lead of the total metal concentrations through the creation of simulated saliva models at low and high pH. The degree of predicted uptake using a net-neutral species approach was dependent on the total concentrations of lead and cadmium within a standard range of low molecular mass ligands and the pH of the saliva. These saliva models predicted cadmium to be more bioavailable than lead, indicating there may be an elevated risk from the mouthing action of pacifiers or similar items containing cadmium compared to lead. This study, therefore, offers regulatory bodies opportunities to strengthen safety compliance monitoring for materials used in pacifiers.","PeriodicalId":23210,"journal":{"name":"Toxicological & Environmental Chemistry","volume":"112 1","pages":"194 - 209"},"PeriodicalIF":0.0,"publicationDate":"2022-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79648076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Short-term interactive effects of copper and cadmium on barley growth, metal uptake, and oxidative damage 铜和镉对大麦生长、金属吸收和氧化损伤的短期交互作用

Toxicological & Environmental Chemistry Pub Date : 2022-01-02 DOI: 10.1080/02772248.2022.2057499

J. Žaltauskaitė, R. Dagiliūtė, G. Sujetovienė, A. Dikšaitytė

{"title":"Short-term interactive effects of copper and cadmium on barley growth, metal uptake, and oxidative damage","authors":"J. Žaltauskaitė, R. Dagiliūtė, G. Sujetovienė, A. Dikšaitytė","doi":"10.1080/02772248.2022.2057499","DOIUrl":"https://doi.org/10.1080/02772248.2022.2057499","url":null,"abstract":"Abstract The present study aimed at investigating the response of spring barley (Hordeum vulgare L.) across different endpoints (morphological, physiological, and biochemical) to short-term single and combined copper (Cu) and cadmium (Cd) exposure. Barley seedlings were exposed for 5 days to Cd and Cu (0.1–100 mg L−1) individually and in binary combinations. Binary mixture toxicity was evaluated using the concentration addition concept and toxic unit approach. Single metal treatment reduced barley height and biomass, altered the content of photosynthetic pigments, and induced lipid peroxidation. Plant growth (measured as plant height and biomass) and lipid peroxidation showed high sensitivity to combined Cu–Cd treatment and Cu–Cd mixture induced greater than additive effect on these endpoints. The uptake and accumulation of Cu and Cd were considerably influenced by the interaction among these metals. Cu reduced Cd accumulation in plants, while Cd had no influence on Cu accumulation in barley roots and shoots. Analysis of mixture effects across different endpoints revealed that mixture effects are endpoint dependent and different types of interactions were manifested. Overall, the present study shows that the same test design for single and mixture toxicity assessment for several endpoints cannot always be used to predict mixture effects and type of interaction.","PeriodicalId":23210,"journal":{"name":"Toxicological & Environmental Chemistry","volume":"48 1","pages":"103 - 119"},"PeriodicalIF":0.0,"publicationDate":"2022-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76228283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

(±)-Equol interferes with the secretion of gonadotropin-releasing hormone and the expression of neuromodulators in murine neurons (±)-雌马酚干扰小鼠神经元中促性腺激素释放激素的分泌和神经调节剂的表达

Toxicological & Environmental Chemistry Pub Date : 2022-01-02 DOI: 10.1080/02772248.2022.2055031

Jingyuan Xiong, Minghui Wang, Ye Tian, Aru Ling, S. Shan, Li Zhao, G. Cheng

{"title":"(±)-Equol interferes with the secretion of gonadotropin-releasing hormone and the expression of neuromodulators in murine neurons","authors":"Jingyuan Xiong, Minghui Wang, Ye Tian, Aru Ling, S. Shan, Li Zhao, G. Cheng","doi":"10.1080/02772248.2022.2055031","DOIUrl":"https://doi.org/10.1080/02772248.2022.2055031","url":null,"abstract":"Abstract S-Equol is an intestinal bacterial metabolite of the isoflavone daidzein. Racemic (±)-equol is used as a dietary estrogen supplement in menopausal women and is suggested to affect the female reproductive function and development, primarily controlled by the hypothalamic-pituitary-gonadal axis and gonadotropin-releasing hormone release. In this study, murine neurons were utilized to evaluate the effect and mechanism of (±)-equol on the secretion of gonadotropin-releasing hormone. The cells were treated with up to 20 µmol/L of (±)-equol to determine the influence on cell viability. Enzyme-linked immunosorbent assay, real-time quantitative polymerase chain reaction, and Western-blotting analysis were used to investigate the impacts of (±)-equol on the secretion and transcription of gonadotropin-releasing hormone, and the transcription and translation of key neuromodulators. This study showed that (±)-equol could decrease cell viability, increase the ability to secrete gonadotropin-releasing hormone, and interfere with the expression of neurokinin B receptor, makorin ring finger protein 3, and silent information regulator 1.","PeriodicalId":23210,"journal":{"name":"Toxicological & Environmental Chemistry","volume":"1 1","pages":"129 - 140"},"PeriodicalIF":0.0,"publicationDate":"2022-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84999735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chemical agents protective against rotenone-induced neurotoxicity 防止鱼藤酮引起的神经毒性的化学制剂

Toxicological & Environmental Chemistry Pub Date : 2022-01-02 DOI: 10.1080/02772248.2022.2030341

Nahid Najafi, M. Ghasemzadeh Rahbardar, H. Hosseinzadeh, A. Hayes, G. Karimi

引用次数: 4

Tembotrione combinations on enzyme activities and arbuscular mycorrhiza in maize planted soil Tembotrione组合对玉米种植土壤酶活性和丛枝菌根的影响

Toxicological & Environmental Chemistry Pub Date : 2022-01-02 DOI: 10.1080/02772248.2022.2061489

Sri priyaa Goalla, J. P, R. A, K. R., M. S

引用次数: 1

Homogeneous hydrolysis of 4,4’-methylenediphenyl diisocyanate (MDI) in water 4,4 ' -亚甲基二苯二异氰酸酯(MDI)在水中的均相水解

Toxicological & Environmental Chemistry Pub Date : 2021-11-22 DOI: 10.1080/02772248.2021.2009480

M. Neuland, H. Allmendinger, H. Pirkl, R. West, P. M. Plehiers

{"title":"Homogeneous hydrolysis of 4,4’-methylenediphenyl diisocyanate (MDI) in water","authors":"M. Neuland, H. Allmendinger, H. Pirkl, R. West, P. M. Plehiers","doi":"10.1080/02772248.2021.2009480","DOIUrl":"https://doi.org/10.1080/02772248.2021.2009480","url":null,"abstract":"Abstract The environmental effects of 4,4’-methylenediphenyl diisocyanate (MDI) are linked with its potential hydrolytic conversion to 4,4’-methylenedianiline (MDA). Likewise, the reactions of MDI with biological macromolecules govern the absorption, distribution, metabolism, and excretion processes associated with sensitization and toxicological effects, and the hydrolytic formation of MDA in the body would be a source of additional concern. To obtain better insight into the influence of the reactive behavior of MDI on its potential health and environmental hazards, its hydrolysis in water was studied at very high dilution (120 nmol/L) under homogeneous conditions that minimized potential interference by solvents, buffers, and strong N- or S-centered nucleophiles. The reaction proceeds in two distinct steps, converting one isocyanate group at a time. Pseudo-first-order rate constants for the conversion of MDI were determined at 293 K and pH values between 4 and 9, and at temperatures between 283 and 303 K at pH 7. The half-life of MDI in water under neutral conditions and at 298 K was found to be 11 s. This newly-generated kinetic and mechanistic information provides a basis for refining the conceptual and quantitative models used to predict the environmental and toxicological effects of MDI and MDI-related substances.","PeriodicalId":23210,"journal":{"name":"Toxicological & Environmental Chemistry","volume":"80 1","pages":"55 - 66"},"PeriodicalIF":0.0,"publicationDate":"2021-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76395053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Chloroacetamide herbicide pretilachlor induces genotoxicity in the fresh water fish Clarias batrachus 氯乙酰胺除草剂苯甲草胺对淡水鱼的遗传毒性研究

Toxicological & Environmental Chemistry Pub Date : 2021-11-17 DOI: 10.1080/02772248.2021.2007921

S. Verma, Rakesh Soni, P. Gupta

引用次数: 3

Acetic acid-modified zinc oxide nanoparticles for solid phase extraction of Cu(II) and Cr(III) in water 醋酸修饰氧化锌纳米颗粒固相萃取水中Cu(II)和Cr(III

Toxicological & Environmental Chemistry Pub Date : 2021-11-17 DOI: 10.1080/02772248.2021.2007922

Asnakech Tesfaye, M. Amde, E. Teju, Deribachew Bekana, Negussie Megersa

引用次数: 2