Toxicology Reports最新文献

{"title":"Vitamin D supplementation: Biochemical and inflammatory effects in non-pathological Wistar rats","authors":"Silvia Muller de Moura Sarmento ,&nbsp;Elizandra Gomes Schmitt ,&nbsp;Laura Smolski dos Santos ,&nbsp;Gênifer Erminda Schreiner ,&nbsp;Rafael Tamborena Malheiros ,&nbsp;Clóvis Klock ,&nbsp;Charline Casanova Petry ,&nbsp;Itamar Luís Gonçalves ,&nbsp;Vanusa Manfredini","doi":"10.1016/j.toxrep.2025.101901","DOIUrl":"10.1016/j.toxrep.2025.101901","url":null,"abstract":"<div><div>Vitamin D₃ (VD₃) is shown to be a biochemical and physiological modulator of the body. Debates about route of administration, prescribed dosage and serum levels have arisen, and thus the interaction of VD₃ with the body in overdose. Using an experimental model of Wistar rats of both sexes, rats were subdivided into 5 groups, which represents a control group, and 4 groups with VD₃ treatments (2.500, 7.000, 14.000 and 21.000 IU/kg/week) for one month. Thereafter biochemical, hormonal, inflammatory and histological analyses were performed. Regarding the biochemical findings, there was an increase in the levels of the AST in comparison of the control group with the treatments with higher doses (14.000 IU and 21.000 IU). Furthermore, changes in the inflammatory cytokine profile were identified at doses of 14,000 IU and 21,000 IU, with an increase in inflammatory cytokines (IL-1β, IL-6, IL-8 and TNF-α) and a decrease in the anti-inflammatory IL-10. Histological evaluation of the liver tissue also revealed changes at the highest doses. Finally, in the evaluation of a murine physiological model, it showed that the supplementation of VD₃ in overdoses there was an inflammatory exacerbation in the body, suggesting that the VD₃ supplementation should be administered with caution, and takes into account physiological factors of the individual.</div></div>","PeriodicalId":23129,"journal":{"name":"Toxicology Reports","volume":"14 ","pages":"Article 101901"},"PeriodicalIF":0.0,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11786669/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143081112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum to “From prescription to pollution: The ecological consequences of NSAIDs in aquatic ecosystems” [Toxicol. Rep. 13 (2024) 101775]","authors":"Vijaya Geetha B,&nbsp;Divya Lakshmi S,&nbsp;Vibha Murali","doi":"10.1016/j.toxrep.2025.101892","DOIUrl":"10.1016/j.toxrep.2025.101892","url":null,"abstract":"","PeriodicalId":23129,"journal":{"name":"Toxicology Reports","volume":"14 ","pages":"Article 101892"},"PeriodicalIF":0.0,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11780146/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143068151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Neuronal effect of 0.3 % DMSO and the synergism between 0.3 % DMSO and loss function of UCH-L1 on Drosophila melanogaster model","authors":"Mai Thi Thu Trinh ,&nbsp;Truong Huynh Kim Thoa ,&nbsp;Dang Thi Phuong Thao","doi":"10.1016/j.toxrep.2025.101904","DOIUrl":"10.1016/j.toxrep.2025.101904","url":null,"abstract":"<div><div>Dimethyl sulfoxide (DMSO) is a polar aprotic solvent which is widely used in biological and medical studies and as a vehicle for pharmacological therapy. DMSO from 0.1 % to 0.5 %, particularly 0.3 % is commonly used as solvent to dissolve compounds when testing their effect on living cell, tissues including nerve cell. However, scientific data on the effects of DMSO on nervous system is limited. Here, we present our data of case study on investigation the effects of DMSO at 0.3 % concentration on nerve cell of <em>Drosophila melanogaster</em> model. We found that 0.3 % DMSO concentration had affected on the active zone and glutamate receptor. Notably, this study also revealed the synergistic effect of 0.3 % DMSO and loss function of dUCH (the homolog of Ubiquitin Carboxyl terminal Hydrolase -L1, UCH-L1 in <em>D. melanogaster</em>). This combination caused more serious abnormalities in synapse structure, particularly number of boutons on Neuromuscular Junction, NMJ. Furthermore, 0.3 % DMSO reduced the amount of ubiquitinylated protein aggregates in the indirect flight muscle of both normal and genectic defect fly model. Taken together, data in this sytudy indicated that 0.3 % DMSO caused the aberrant morphology of the synaptic structure and decreased the number of ubiquitinylated proteins in the indirect flight muscle of <em>Drosophila</em>. The data from the study contributed new evidence of the effects of DMSO on the nervous system. Signigicantly, this study revealed that DMSO affected on neuron cell at low concentration which widely used as pharmacological solvent.</div></div>","PeriodicalId":23129,"journal":{"name":"Toxicology Reports","volume":"14 ","pages":"Article 101904"},"PeriodicalIF":0.0,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11783005/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143080991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimization of HPLC method for metanephrine and normetanephrine detection in urine: Enhancing diagnostic precision for pheochromocytoma","authors":"Hafiza Monaza Batool ,&nbsp;Madeeha Batool","doi":"10.1016/j.toxrep.2025.101903","DOIUrl":"10.1016/j.toxrep.2025.101903","url":null,"abstract":"<div><div>Catecholamines and their metabolites play critical physiological roles in the human body. Paragangliomas and pheochromocytomas are rare adrenal tumors that significantly alter catecholamine metabolism, particularly the concentrations of metanephrine (MN) and normetanephrine (NMN). This study presents the development and validation of a rapid and straightforward analytical method using reverse-phase high-performance liquid chromatography (RP-HPLC) coupled with a photodiode array (PDA) detector for quantifying MN and NMN in 24-h urine samples. Sample preparation involved adding 1 mL of urine to a tube containing the internal standard 3-methoxy-4-hydroxy benzylamine hydrochloride (MHBA) and a 2 g/L solution of 2-aminoethyl-diphenylborinate. After vortex mixing and centrifugation, ethyl acetate was used for extraction, and the organic layer was dried under nitrogen at 50–60 °C before reconstitution in the mobile phase. Chromatographic separation was achieved on an RP C-18 column with an isocratic flow of the mobile phase (sodium dihydrogen phosphate, citric acid monohydrate, acetonitrile, and sodium octyl sulfate). Detection was performed at 347 nm, with peak identification based on standard retention times. The method was validated for linearity (10–2000 ng/mL), recovery, sensitivity, precision, accuracy, selectivity, carryover, stability, and dilution effects. It showed a strong correlation coefficient (&gt;0.99) and accuracy within ± 15 %. Inter- and intra-day precision confirmed the method reliability. This validated technique is suitable for clinical and research applications involving catecholamine metabolite screening.</div></div>","PeriodicalId":23129,"journal":{"name":"Toxicology Reports","volume":"14 ","pages":"Article 101903"},"PeriodicalIF":0.0,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11783001/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143080993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Anticholinergic syndrome due to mydriatic drops intoxication in a child: A case report","authors":"J. Serralabós-Ferré ,&nbsp;I. Barceló-Carceller","doi":"10.1016/j.toxrep.2024.101889","DOIUrl":"10.1016/j.toxrep.2024.101889","url":null,"abstract":"<div><div>Anticholinergic syndrome consists of neurological and systemic symptoms, including agitation, mydriasis and dryness that can be an adverse reaction to a number of medications, some of them as seemly harmless as cycloplegic mydriatic drops. We present the case of a 7-year-old previously healthy female child who presented to the emergency room with impaired neurological status, inability to recognize family members and incoherent speech, as well as facial flushing, mucosal dryness and bilateral mydriasis after having mistakenly received a high dose of mydriatic drops. She made a complete recovery without need for treatment and had no sequelae. It has been described that anticholinergic syndrome can be related to a number of mydriatic drops (such as cyclopentolate) as well as other medications, in adults, children and neonates. It is a clinical diagnosis and requires no etiological testing. Depending on the severity at presentation, it may be required to administer the antidote physostigmine.</div></div>","PeriodicalId":23129,"journal":{"name":"Toxicology Reports","volume":"14 ","pages":"Article 101889"},"PeriodicalIF":0.0,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143103504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"α-ketoglutarate ameliorates colitis through modulation of inflammation, ER stress, and apoptosis","authors":"Ankita Mandal ,&nbsp;Sharmistha Banerjee ,&nbsp;Sumit Ghosh ,&nbsp;Sima Biswas ,&nbsp;Angshuman Bagchi ,&nbsp;Parames C. Sil","doi":"10.1016/j.toxrep.2025.101897","DOIUrl":"10.1016/j.toxrep.2025.101897","url":null,"abstract":"<div><div>Colitis is an inflammatory disorder of the gastrointestinal tract. A widely consumed dietary nutrient, α-ketoglutarate (α-KG) is known to play a crucial role in cellular metabolism and provide protection to intestinal epithelium under various pathophysiological conditions. In this study, 2,4,6-trinitrobenzenesulfonic acid (TNBS) was used to induce colitis in Wistar rats. After 36 hours of TNBS administration, the rats were orally treated with a solution of α-KG at 1 g/kg body weight for 5 days. Development of colitis was confirmed by observable physical symptoms of repeated loose blood-mixed stool, apathy for food and weight loss. Macroscopic inspection revealed an inflamed colonic surface with ulcerations. Histopathological observations included alterations in crypts-structure and disruption in both epithelial and mucosal layers of colon in colitis induced rats. Colitis resulted in elevated levels of pro-inflammatory cytokines, ER stress-mediated cell death and intrinsic apoptosis pathway. The ameliorative effects of α-KG against TNBS-mediated toxicity were confirmed through molecular technics and docking analysis. Additionally, there were no instances of toxicity of α-KG. Therefore, α-KG can be considered as a valuable therapeutic agent for further comprehensive research.</div></div>","PeriodicalId":23129,"journal":{"name":"Toxicology Reports","volume":"14 ","pages":"Article 101897"},"PeriodicalIF":0.0,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11780160/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143068231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Transplacental and genotoxicity effects of thallium(I) during organogenesis in mice","authors":"Lucila Álvarez-Barrera ,&nbsp;Rodrigo Aníbal Mateos-Nava ,&nbsp;Keyla Nahomi Hernández-Córdova ,&nbsp;Eduardo Lezama-Sánchez ,&nbsp;Víctor Alan Alcántara-Mejía ,&nbsp;Juan José Rodríguez-Mercado","doi":"10.1016/j.toxrep.2025.101896","DOIUrl":"10.1016/j.toxrep.2025.101896","url":null,"abstract":"<div><div>The increased concentration of thallium (Tl) in the environment is a cause for concern because the entire population, including pregnant women, is exposed, and this metal crosses the placenta and reaches the conceptus during development. In biological models such as mice, some abnormalities and delays in ossification occur in the fetuses of mice administered Tl on day 7 of gestation, but exposure to environmental Tl is constant during fetal development; therefore, in this study, the effects of several administrations of TI during organogenesis on the external morphology, skeletal development and genotoxicity of fetuses were evaluated. Four groups of 10 pregnant mice were administered 5.28, 6.16, 7.4 or 9.25 mg/kg body weight Tl(I) acetate intraperitoneally during fetal organogenesis. Additionally, samples were taken from fetuses from pregnant mice treated with 5.28 and 6.16 mg/kg body weight to evaluate the transplacental genotoxicity. The results revealed that the 9.25 mg/kg body weight dose produced maternal and fetal toxicity, and all of the treatment groups presented relatively high percentages of fetuses with external abnormalities, reduced bone ossification, and an increased percentage of liver cells with structural chromosomal aberrations (SCAs) and micronuclei (MNs) in blood cells. These results show that Tl(I) acetate administered during organogenesis produces abnormalities, including a delay in ossification and transplacental genotoxicity, in mouse fetuses. These findings are important because Tl has negative effects on development and may affect the health of offspring in the future because it can damage genetic material.</div></div>","PeriodicalId":23129,"journal":{"name":"Toxicology Reports","volume":"14 ","pages":"Article 101896"},"PeriodicalIF":0.0,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11783430/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143081025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Feasibility assessment of a pharmaco-kinetic behavior based yield model of salivary cotinine among tobacco users","authors":"E.C. Hensel ,&nbsp;R.J. Robinson","doi":"10.1016/j.toxrep.2025.101898","DOIUrl":"10.1016/j.toxrep.2025.101898","url":null,"abstract":"<div><h3>Methods</h3><div>A secondary analysis was conducted using puff topography and salivary cotinine biomarker data from a prior two arm, two period cross-over study conducted in the natural environment over 17 days which enrolled 55 Juul electronic cigarette users. The study expands upon a previously validated behavior-based yield (BBY) which quantified aerosol emissions from a Juul ecig as a function of user behavior. A Pharmacokinetic Behavior-Based Yield (PkBBY) model is introduced which models the uptake of nicotine into the body and its subsequent metabolic decay into cotinine. A subset of the available participant data was used to train the PkBBY model and identify three parameters: a gain reflecting the conversion of nicotine into salivary cotinine concentration, and the half-lives of nicotine and salivary cotinine in the body. A separate subset of the available data was used for assessing performance of the PkBBY model against salivary cotinine biomarkers of exposure.</div></div><div><h3>Results</h3><div>Model training demonstrated the PkBBY model was able to predict the bedtime salivary cotinine of participants within + /- 220 ng/mL 95 % confidence interval on the regression, based on their observed puff topography. The training algorithm estimated the conversion from nicotine ingested into the concentration of salivary cotinine as 28.8 [(ng/mL cotinine)/(mg nicotine ingested)], and the half-lives of nicotine and cotinine to be 4.4 and 49 [hours], respectively. The one-to-one intraclass correlation coefficient of the model applied to the assessment data set was 0.6, indicating moderate agreement between the predictions and the observed biomarkers, Limitations of the model associated with the data available for secondary analysis are discussed.</div></div><div><h3>Conclusions</h3><div>The PkBBY model was internally validated and shows promise as a tool for establishing a causal relationship between puffing behavior and an established biomarker of nicotine exposure. Further work is needed to develop personalized PkBBY model parameters to account for variations in participant metabolism factors.</div></div>","PeriodicalId":23129,"journal":{"name":"Toxicology Reports","volume":"14 ","pages":"Article 101898"},"PeriodicalIF":0.0,"publicationDate":"2025-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11787490/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143080919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Toxic natural pollution at Ijen crater volcano: Environmental characteristics and health risk assessment","authors":"Septian Hadi Susetyo ,&nbsp;Azham Umar Abidin ,&nbsp;Kyosuke Sano ,&nbsp;Minoru Yoneda ,&nbsp;Yasuto Matsui","doi":"10.1016/j.toxrep.2025.101899","DOIUrl":"10.1016/j.toxrep.2025.101899","url":null,"abstract":"<div><div>The Ijen crater volcano (ICV) is one of the active volcanoes with unique environmental conditions; it is the largest lake in the world with the most extreme acidity and a blue fire phenomenon and releases toxic volcanic gases, including dangerous sulfur dioxide (SO₂). It has an impact on the environment and ecosystem. This research aimed to investigate the blue fire phenomena and toxic gas SO₂ and characterize the environmental conditions and health effects of the ICV. The method used in this research involved carrying out an SO₂ concentration using an impinger in 32-point sampling around the Inje crater volcano. The environment was characterized based on self-observation, station observation, interviews, and reliable literature data. The health effect was measured based on the threshold level value based on local and global regulations. This research shows that the characteristics of the ICV include a crater lake with a depth of up to 200 m and a diameter of ± 900 m with pH values less than 1. Then, the source of SO₂ comes from the reaction of magma with volcanic gas. the blue fire phenomenon, which occurs in certain situations, frequently adds to the natural wonder of the ICV. In addition, the distribution of SO₂ concentrations ranges from 480 to 6960 ppb. Next, almost the Hazard Quotion (HQ) &gt; 1 every point sampling. This means that the SO₂ concentration and HQ exceed the threshold value affecting human activities.</div></div>","PeriodicalId":23129,"journal":{"name":"Toxicology Reports","volume":"14 ","pages":"Article 101899"},"PeriodicalIF":0.0,"publicationDate":"2025-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11780170/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143068226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of acute plant toxicity, antioxidant activity, molecular docking and bioactive compounds of lemongrass oil isolated from Omani cultivar","authors":"Haneen Al Weshahi ,&nbsp;Mohammad Sohail Akhtar ,&nbsp;Salem Said Al Tobi ,&nbsp;Amzad Hossain ,&nbsp;Shah Alam Khan ,&nbsp;Alia Bushra Akhtar ,&nbsp;Sadri Abdullah Said","doi":"10.1016/j.toxrep.2024.101888","DOIUrl":"10.1016/j.toxrep.2024.101888","url":null,"abstract":"<div><div>Lemongrass (Poaceae) is one of the aromatic plants with strong odors. Traditionally, lemon grass oil has been used for the treatment of many diseases such as gastrointestinal cramps, high blood pressure, high body temperatures, and fatigue, and is also considered an antibacterial and anti-diarrheal agent. Therefore, this study aims to investigate volatile active constituents and a few important biological activities of the volatile oil of lemongrass (Cymbopogon citratus) grown in Oman. To support the results of experimental studies, and to find out the main active constituents responsible for exhibiting biological activities molecular docking studies have also been performed. A sufficient amount of essential oil was obtained using steam distillation from fresh leaves of lemongrass. Volatile constituents were identified with the GC-MS analysis. Lemon grass oil exhibited a very good <em>in vitro</em> antioxidant activity (65.08–90.48 % inhibition of DPPH) with increasing concentration (31.25–1000 µg/mL) of oil. Isolated oil also exhibited good cytotoxic activity against the brine shrimps (100 % mortality at 1000 mcg/mL). Furthermore, molecular docking studies confirmed that beta citral is the monoterpene compound responsible for antioxidant and cytotoxic activity.</div></div>","PeriodicalId":23129,"journal":{"name":"Toxicology Reports","volume":"14 ","pages":"Article 101888"},"PeriodicalIF":0.0,"publicationDate":"2025-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11772142/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143060826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}