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Plastic Waste in Latin America and the Caribbean (LAC): Impact on the Environment and Public Health-A Systematic Review. 拉丁美洲和加勒比地区(LAC)的塑料垃圾:对环境和公共健康的影响--系统回顾》。
IF 3.4
Journal of Toxicology Pub Date : 2024-09-30 eCollection Date: 2024-01-01 DOI: 10.1155/2024/5698516
Danladi Chiroma Husaini, Rodeli Kaylin Mendez, Michael Arzu, Lydia Harris-Thurton
{"title":"Plastic Waste in Latin America and the Caribbean (LAC): Impact on the Environment and Public Health-A Systematic Review.","authors":"Danladi Chiroma Husaini, Rodeli Kaylin Mendez, Michael Arzu, Lydia Harris-Thurton","doi":"10.1155/2024/5698516","DOIUrl":"https://doi.org/10.1155/2024/5698516","url":null,"abstract":"<p><strong>Background: </strong>The global spread and accumulation of plastics in freshwater, marine, and terrestrial settings are of great concern to public health and the environment, especially in developing countries with few resources. In the Caribbean and Latin America, nearly 17,000 tons of plastic waste are generated and trashed daily in open dumpsites with attendant consequences for the environment, the economy, aquatic life, the beauty of sea beaches, and public health. The increased use of plastics threatens public health and the ecosystem. <i>Main Body</i>. This systematic review assessed the impact of plastic waste on the environment, economy, and public health in LAC by searching relevant databases such as PubMed, HINARI, Google Scholar, and Scopus. PRISMA and Rayyan software were used to select and analyze research articles for the review.</p><p><strong>Conclusions: </strong>The review showed that plastic pollution significantly impacts the environment, aquatic life, economy, and human health in LAC. The review further indicated that countries in LAC are working assiduously to address the issues associated with plastic pollution. The use of biodegradable plastics, cleanup campaigns, and policies/programs to reduce or ban plastics are some current efforts in many LAC countries. More research on the impact of plastic waste needs to be conducted, especially in the Caribbean, to address and mitigate the challenges of plastic pollution.</p>","PeriodicalId":17421,"journal":{"name":"Journal of Toxicology","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11458288/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142391517","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}
引用次数: 0
In Vivo Exposure of Deltamethrin Dysregulates the NFAT Signalling Pathway and Induces Lung Damage. 体内暴露于溴氰菊酯会导致 NFAT 信号通路失调并诱发肺损伤。
IF 3.4
Journal of Toxicology Pub Date : 2024-08-29 eCollection Date: 2024-01-01 DOI: 10.1155/2024/5261994
Prakriti Sharma, R S Sethi
{"title":"<i>In Vivo</i> Exposure of Deltamethrin Dysregulates the NFAT Signalling Pathway and Induces Lung Damage.","authors":"Prakriti Sharma, R S Sethi","doi":"10.1155/2024/5261994","DOIUrl":"10.1155/2024/5261994","url":null,"abstract":"<p><p>Deltamethrin is an insecticide used to control harmful agricultural insects that otherwise damage crops and to control vector-borne diseases. Long-term exposure to deltamethrin results in the inflammation of the lungs. The present study elucidates the molecular mechanism underlying the deltamethrin-induced lung damage. The lung samples were extracted from the Swiss albino mice following the treatment of low (2.5 mg/kg) and high (5 mg/kg) doses of deltamethrin. The mRNA expression of TCR, IL-4, and IL-13 showed upregulation, while the expression of NFAT and FOS was downregulated following a low dose of deltamethrin. Moreover, the expression of TCR was downregulated with the exposure of a high dose of deltamethrin. Furthermore, the immunohistochemistry data confirmed the pattern of protein expression for TCR, FOS, IL-4, and IL-13 following a low dose of deltamethrin exposure. However, no change was seen in the TCR, NFAT, FOS, JUN, IL-4, and IL-13 immunopositive cells of the high-dose treatment group. Also, ELISA results showed increased expression of IL-13 in the BAL fluid of animals exposed to low doses of deltamethrin. Overall, the present study showed that deltamethrin exposure induces lung damage and immune dysregulation via dysregulating the NFAT signalling pathway.</p>","PeriodicalId":17421,"journal":{"name":"Journal of Toxicology","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11377118/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142140430","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}
引用次数: 0
Ethanolic Extract of Mangifera indica Protects against CCl4-Induced Hepatotoxicity via Antioxidant Capabilities in Albino Rats. 芒果乙醇提取物通过抗氧化能力保护白化大鼠免受四氯化碳诱发的肝毒性损伤
IF 3.4
Journal of Toxicology Pub Date : 2024-08-27 eCollection Date: 2024-01-01 DOI: 10.1155/2024/5539386
Ahmed Saeed Kabbashi, Salwa Abdulla Eltawaty, Amar Mohamed Ismail, Ahmed Abdelhhafiz Elshikh, Ayat Ahmed Alrasheid, Rawan Ahmed Elmahi, Waleed S Koko, Elbadri Elamin Osman
{"title":"Ethanolic Extract of <i>Mangifera indica</i> Protects against CCl<sub>4</sub>-Induced Hepatotoxicity via Antioxidant Capabilities in Albino Rats.","authors":"Ahmed Saeed Kabbashi, Salwa Abdulla Eltawaty, Amar Mohamed Ismail, Ahmed Abdelhhafiz Elshikh, Ayat Ahmed Alrasheid, Rawan Ahmed Elmahi, Waleed S Koko, Elbadri Elamin Osman","doi":"10.1155/2024/5539386","DOIUrl":"10.1155/2024/5539386","url":null,"abstract":"<p><strong>Objective: </strong>To investigate the antioxidant and hepatoprotective effects of ethanolic <i>Mangifera indica</i> (<i>M. indica</i>) seed extract on carbon tetrachloride (CCl<sub>4</sub>)-induced hepatotoxicity in albino rats.</p><p><strong>Methods: </strong>Forty-eight albino rats weighing (100-150 g) were used for hepatoprotective and toxicity experiments. Antioxidant activity was determined using the 2, 2-diphenyl-1-picrylhydrazyl (DPPH) assay. The toxicity of <i>M. indica</i> seeds on the liver was evaluated by examining wellness parameters, body weight, and liver histological sections. The protective effects of 50 mg/kg and 100 mg/kg of seed extract on CCl<sub>4</sub>-induced hepatotoxicity were investigated by evaluating hematological, renal, and liver function parameters, body weight, and liver histological sections.</p><p><strong>Results: </strong>The antioxidant activity of the <i>M. indica</i> ethanolic extract was (92 ± 0.03 RSA %) compared with (91 ± 0.01 RSA %) of propyl gallate, and the IC<sub>50</sub> was (8.3 ± 0.01 <i>µ</i>g/ml) and (14.1 ± 0.01 <i>µ</i>g/ml). No changes were observed in the health indicators, body weights, and liver histological sections following oral administration of 50 mg/kg and 100 mg/kg of <i>M. indica</i> seed extracts. Treatment with <i>M. indica</i> seed extract significantly reduced alanine transaminase (ALT), aspartate transaminase (AST), alkaline phosphatase (ALP), blood sugar, and urea levels compared with those in the CCl<sub>4</sub>-treated group.</p><p><strong>Conclusion: </strong>The IC<sub>50</sub> of the <i>M. indica</i> ethanolic extract was 8.3 <i>µ</i>g/ml, and the <i>M. indica</i> extract is a potential source of natural antioxidants that protect against CCl<sub>4</sub>-induced hepatotoxicity.</p>","PeriodicalId":17421,"journal":{"name":"Journal of Toxicology","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11371441/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142126087","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}
引用次数: 0
Toxicity Evaluation of a Polyphenolic Extract from Flourensia cernua DC through Artemia Lethality Assay, Hemolytic Activity, and Acute Oral Test. 通过蒿鱼致死试验、溶血活性和急性口服试验评估从Flourensia cernua DC中提取的一种多酚提取物的毒性。
IF 3.4
Journal of Toxicology Pub Date : 2024-08-09 eCollection Date: 2024-01-01 DOI: 10.1155/2024/2970470
Yulma Lizbeth Aguirre-García, Ainara Castillo-Manzanares, Lissethe Palomo-Ligas, Juan Alberto Ascacio-Valdés, Lizeth Guadalupe Campos-Múzquiz, Sandra Cecilia Esparza-González, Raúl Rodríguez-Herrera, Sendar Daniel Nery-Flores
{"title":"Toxicity Evaluation of a Polyphenolic Extract from <i>Flourensia cernua</i> DC through <i>Artemia</i> Lethality Assay, Hemolytic Activity, and Acute Oral Test.","authors":"Yulma Lizbeth Aguirre-García, Ainara Castillo-Manzanares, Lissethe Palomo-Ligas, Juan Alberto Ascacio-Valdés, Lizeth Guadalupe Campos-Múzquiz, Sandra Cecilia Esparza-González, Raúl Rodríguez-Herrera, Sendar Daniel Nery-Flores","doi":"10.1155/2024/2970470","DOIUrl":"10.1155/2024/2970470","url":null,"abstract":"<p><p><i>Flourensia cernua</i> DC, commonly known as hojasen or tarbush, is a medicinal plant used in arid regions due to its therapeutic properties, especially in the treatment of gastrointestinal disorders. This study aimed to assess the toxicity of a polyphenolic extract obtained from <i>F. cernua</i>. This research involved both <i>in vitro</i> (hemolytic and brine shrimp assay) and <i>in vivo</i> tests (acute oral toxicity) to determine the safety profile of this extract. The extract was obtained through a novel ultrasound-microwave extraction and purified by ion-exchange chromatography. Analysis of the polyphenolic extract revealed a rich composition of flavonoids and hydroxycinnamic acids, mainly apigenin glycosides. In toxicity tests, the polyphenols did not exhibit toxicity towards <i>Artemia salina</i> at a concentration of 1 mg/ml. Furthermore, incubation at 500 <i>μ</i>g/ml for 4 hours showed a slight toxic effect on erythrocytes. In the acute oral toxicity test in mice, doses of 300 mg/kg and 2000 mg/kg did not result in animal mortality, indicating that the LD<sub>50</sub> exceeds 2000 mg/kg. However, the higher dose induced signs of toxicity, including lethargy, drowsiness, piloerection, and a significant decrease in weight during the initial two days postadministration of the polyphenolic extract. In addition, histological analysis suggested potential kidney damage at the 2000 mg/kg dose. According to OECD guidelines, while the extract can be classified as category 5 (low acute toxicity) due to the absence of mortality at 2000 mg/kg, the observed signs of toxicity should be considered in the overall risk assessment. These findings highlight the potential of <i>F. cernua</i> in pharmaceutical and nutraceutical applications due to its high polyphenolic content. However, further investigations are necessary to explore the specific effects of the compounds present in the extract. In addition, continuous evaluation of its long-term toxicity is essential to fully understand the extract's safety profile and efficacy.</p>","PeriodicalId":17421,"journal":{"name":"Journal of Toxicology","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11329308/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142000294","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}
引用次数: 0
Evaluation of the Psychiatric Disorders among Amphetamine Addicts in Rehabilitation Centers: A Cross-Sectional Analysis. 评估康复中心苯丙胺成瘾者的精神障碍:横断面分析
IF 3.4
Journal of Toxicology Pub Date : 2024-08-06 eCollection Date: 2024-01-01 DOI: 10.1155/2024/1643693
Saud D AlOtaibi, Hossam A Elsisi, Mohammed J AlShammary, Saud A AlQader, Hejab A AlHarbi, Bayan R AlOlaiyan, Ahmad O Alanazi, Firas S AlMendeel, Yazeed N AlHarbi, Ibrahim AlKhalaf, Ahmad H Alhowail, Abdelhamid Mohamed Elwy, Ashraf M Emara
{"title":"Evaluation of the Psychiatric Disorders among Amphetamine Addicts in Rehabilitation Centers: A Cross-Sectional Analysis.","authors":"Saud D AlOtaibi, Hossam A Elsisi, Mohammed J AlShammary, Saud A AlQader, Hejab A AlHarbi, Bayan R AlOlaiyan, Ahmad O Alanazi, Firas S AlMendeel, Yazeed N AlHarbi, Ibrahim AlKhalaf, Ahmad H Alhowail, Abdelhamid Mohamed Elwy, Ashraf M Emara","doi":"10.1155/2024/1643693","DOIUrl":"10.1155/2024/1643693","url":null,"abstract":"<p><strong>Background: </strong>People who are addicted to amphetamines have a much greater chance of developing psychosis compared to those who are not. It is essential to study the behavioral and psychological effects of amphetamines. Therefore, this research aimed to examine conditions such as depression, anxiety, mood, cognitive abilities at the workplace, and social responsibilities by using sociodemographic factors as useful tools in determining effective strategies for preventing, managing, and treating amphetamine addiction.</p><p><strong>Methods: </strong>A cross-sectional study among addicts hospitalized at two rehabilitation centers across Saudi Arabia between May and October 2023. A validated questionnaire consisting of psychiatric disorders assessment tools was distributed to healthcare professionals to start an interview with addicts to assess the abnormalities. The results were compared with healthy people (control). The assessment tools used are Hamilton Anxiety and Depression Rating Scale, Young Mania Rating Scale, and Work and Social Adjustment Scale. The data were analyzed using SPSS version 22.0. Pearson correlation coefficients (<i>r</i>) were employed.</p><p><strong>Results: </strong>A total of 60 subjects participated in this study. The participants were divided into two groups (<i>n</i> = 60): group I was control (<i>n</i> = 25) healthy volunteers and group II was amphetamine abusers (<i>n</i> = 35), who were hospitalized for detoxification. The ages ranged from 18 to 60 years old with mean ages of 38.68 (±8.14) and 37.77 (±10.95) years in the control and amphetamine groups, respectively. Among the addicts, the mean severity dependence scale value was 10.46 (±1.82), which denotes high dependency on the illicit drug. The prevalence of high levels of anxiety, depression, and bipolar disorder was significantly higher among addicts when they were compared to healthy people (control). The assessment of the Work and Social Adjustment Scale (WSAS) reflected a higher impairment that minimized their ability to perform the work requirements, home management, social leisure, and relationships.</p><p><strong>Conclusions: </strong>The addiction to amphetamines was associated with high impairment of work performance and social obligations and a negative impact on the addict's mental health. The risk of suffering anxiety, depression, and bipolar is higher than in nonaddict people. These effects are attributed to brain damage, neurotoxicity, and neuronal inflammation, particularly when these substances are abused over extended periods and at higher doses.</p>","PeriodicalId":17421,"journal":{"name":"Journal of Toxicology","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11321892/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141976018","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}
引用次数: 0
Association of IL-8 and CXCR2 with AST/ALT Ratio in Liver Abnormalities Screening during Oxidative Stress Injury Caused by VCM. IL-8 和 CXCR2 与 VCM 引起的氧化应激损伤中肝脏异常筛查的 AST/ALT 比率的关系
IF 3.4
Journal of Toxicology Pub Date : 2024-07-30 eCollection Date: 2024-01-01 DOI: 10.1155/2024/1951046
Yiwen Dong, Xingang Wang, Weijiang Hu, Xin Wang, Hongying Bian, Wencui Zhang, Feng Han, Ning Kang, Lin Zhang, Meng Ye
{"title":"Association of IL-8 and CXCR2 with AST/ALT Ratio in Liver Abnormalities Screening during Oxidative Stress Injury Caused by VCM.","authors":"Yiwen Dong, Xingang Wang, Weijiang Hu, Xin Wang, Hongying Bian, Wencui Zhang, Feng Han, Ning Kang, Lin Zhang, Meng Ye","doi":"10.1155/2024/1951046","DOIUrl":"10.1155/2024/1951046","url":null,"abstract":"<p><p>Liver impairment caused by VCM has been linked to irreversible damage such as fibrosis, necrosis, hepatocellular carcinoma, and liver angiosarcoma. However, the ability to detect abnormalities during initial phase have not been achieved so far. Thus, this study aimed to investigate the effect of interleukin 8 (IL-8) and C-X-C chemokines 2 (CXCR2) on screening for a VCM-exposed group (<i>n</i> = 227) from a PVC manufacturing factory compared to a control group (<i>n</i> = 110) in Tianjin City in 2020 with influence factors evaluation. Ambient concentrations of VCM and health archives from 2012 to 2018 were collected for establishing the dose-effect trend. A cross-sectional survey in 2020 was performed to measure TDGA, IL-8, CXCR2, 8-OHdG, SOD, GPX, CAT, MDA, and ROS levels. Results indicated a continuous increased incidence on liver abnormalities despite a fluctuated downward trend in cumulative time-weighted average (C<sub>TWA</sub>) VCM concentrations over the years. ALT, AST, and AST/ALT ratio all contributed to liver abnormalities that contained fatty liver, liver calcification, and liver cysts, IL-8 and CXCR2 correlated with each other strongly and showed significant associations with oxidative stress markers, even AST/ALT ratio. IL-8 (>1547 <i>µ</i>g/m<sup>3</sup>) or CXCR2 (<139 <i>µ</i>g/m<sup>3</sup>) influenced the AST/ALT ratio through reciprocal interactions under oxidative stress injury, CXCR2 (>222 <i>µ</i>g/m<sup>3</sup>), working years of 21 to 30 (a) and 11 to 20 (a), TDGA (>1.52 mg/L), alcohol consumption, smoking habit, and a less sleeping duration of <4 h per day would also be potential factors affecting the AST/ALT ratio. In conclusion (1) even with decreased VCM concentrations in PVC manufacturing factories liver abnormalities that contained fatty liver, liver calcification, and liver cysts could still occur due to oxidative stress injury with involvement of IL-8 and CXCR2. The status of protective measure and appropriate mask types also play a role; (2) the AST/ALT ratio could be a specific indicator for detecting abnormalities when combined with liver <i>B</i> ultrasonography results before impairment altered from bad to worse; and (3) factors such as definite medication history, fully broken protective facilities, alcohol consumption, less sleeping duration, inappropriate mask types, and longer working years could also influence AST/ALT ratio alterations through complex interactions.</p>","PeriodicalId":17421,"journal":{"name":"Journal of Toxicology","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11303046/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141897715","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}
引用次数: 0
Assessment of Histopathological Alterations and Oxidative Stress in the Liver and Kidney of Male Rats following Exposure to Aluminum Chloride. 评估雄性大鼠暴露于氯化铝后肝脏和肾脏的组织病理学变化和氧化应激。
IF 3.4
Journal of Toxicology Pub Date : 2024-07-12 eCollection Date: 2024-01-01 DOI: 10.1155/2024/3997463
Anfal Kadhim, Ahlem Ben Slima, Ghusoon Alneamah, Mohamed Makni
{"title":"Assessment of Histopathological Alterations and Oxidative Stress in the Liver and Kidney of Male Rats following Exposure to Aluminum Chloride.","authors":"Anfal Kadhim, Ahlem Ben Slima, Ghusoon Alneamah, Mohamed Makni","doi":"10.1155/2024/3997463","DOIUrl":"10.1155/2024/3997463","url":null,"abstract":"<p><p>The study aims to investigate the residual and histopathological effects of chronic aluminum chloride (AlCl<sub>3</sub>) toxicity in the kidney and liver of male rats. After 30-, 60-, and 90-day exposure period, analyses were conducted to assess the toxicity in the kidney and liver. The results showed that the concentration of AlCl<sub>3</sub> in the kidney and liver increased significantly in 30-, 60-, and 90-day periods. The effects of oxidative stress on the kidneys and liver were dose- and time-dependent. Levels of malondialdehyde (MDA) significantly increased when exposed to AlCl<sub>3</sub> groups. Conversely, the activity of antioxidant parameters, including reduced glutathione (GSH), catalase (CAT), and superoxide dismutase (SOD), significantly decreased in the AlCl<sub>3</sub> exposed groups, indicating compromised oxidant mechanisms. Both the kidney and liver exhibited severe tissue damage, including necrosis, fibrosis, and inflammatory cell infiltration, in rats exposed to AlCl<sub>3</sub>. Kidney sections showed hyperplasia of the epithelial cells lining the renal tubules, resembling finger-like structures. Liver sections displayed severe lobular hyperplasia and an increase in mitotic figures. Our study suggests that AlCl<sub>3</sub> has a detrimental impact on these vital organs and emphasizes the importance of monitoring and mitigating aluminum exposure, particularly where it is present in high concentration.</p>","PeriodicalId":17421,"journal":{"name":"Journal of Toxicology","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11259504/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141734481","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}
引用次数: 0
Level of Heavy Metals and Potential Ecological Risks in Irrigated Horticultural Farms in the Vicinity of Lake Ziway, Central Ethiopian Rift Valley Region 埃塞俄比亚中部裂谷地区齐韦湖附近灌溉园艺农场的重金属含量和潜在生态风险
IF 2.9
Journal of Toxicology Pub Date : 2024-05-14 DOI: 10.1155/2024/4724097
GirmaTilahun Yimer
{"title":"Level of Heavy Metals and Potential Ecological Risks in Irrigated Horticultural Farms in the Vicinity of Lake Ziway, Central Ethiopian Rift Valley Region","authors":"GirmaTilahun Yimer","doi":"10.1155/2024/4724097","DOIUrl":"https://doi.org/10.1155/2024/4724097","url":null,"abstract":"Research on heavy metal pollution in horticultural farms located around lakes in the Central Ethiopian Rift Valley Region has focused on measuring the levels of heavy metals and their health implications. However, the ecological risks of horticultural farms contaminated with heavy metals in this region have not been studied. The current study addresses this gap by providing information on the degree of heavy metal contamination and the ecological risk associated with horticultural farms around Lake Ziway, using various pollution indices. An inductively coupled plasma optical emission spectrometer (ICP-OES) was used to measure the concentrations of nine heavy metals (As, Cd, Co, Cu, Cr, Ni, Pb, Hg, and Zn) in a total of 30 composite soil and irrigation water samples, each consisting of a mix of six subsamples. The results indicated that the mean concentrations of Hg, Cd, Pb, and Zn in soils collected from all the sampling sites exceeded the FAO/WHO maximum permissible limit (MPL). The values of both the contamination factor (CF) and contamination degree (Cd) of the heavy metals ranged from 0.04 to 2.66 and 2.81 to 6.14, respectively, indicating a low to medium level of contamination for both indices. The pollution load index (PLI) values of 0.451, 0.449, and 0.157 for sites 2, 1, and 3, respectively, indicate “unpolluted” to “moderately polluted” levels of heavy metal pollution. However, the ecological risk indices (ERIs) at sites 2 and 1 (158.92 and 141, respectively) showed a potentially high ecological risk due to soil pollution. Therefore, close monitoring and early intervention mechanisms must be in place to control pollution in the study area.","PeriodicalId":17421,"journal":{"name":"Journal of Toxicology","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140978278","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
Adverse Health Effects of the Long-Term Simultaneous Exposure to Arsenic and Particulate Matter in a Murine Model. 在小鼠模型中长期同时暴露于砷和微粒物质对健康的不良影响。
IF 2.9
Journal of Toxicology Pub Date : 2024-05-09 eCollection Date: 2024-01-01 DOI: 10.1155/2024/5391316
Cesar Rivas-Santiago, Maria Gallegos-Bañuelos, Irving Trejo-Ramos, Nancy Solís-Torres, Raúl Quintana-Belmares, Noé Macías-Segura, Héctor Gutiérrez-Bañuelos, Lorena Troncoso-Vazquez, Bruno Rivas-Santiago, Irma Gonzalez-Curiel
{"title":"Adverse Health Effects of the Long-Term Simultaneous Exposure to Arsenic and Particulate Matter in a Murine Model.","authors":"Cesar Rivas-Santiago, Maria Gallegos-Bañuelos, Irving Trejo-Ramos, Nancy Solís-Torres, Raúl Quintana-Belmares, Noé Macías-Segura, Héctor Gutiérrez-Bañuelos, Lorena Troncoso-Vazquez, Bruno Rivas-Santiago, Irma Gonzalez-Curiel","doi":"10.1155/2024/5391316","DOIUrl":"https://doi.org/10.1155/2024/5391316","url":null,"abstract":"<p><p>PM<sub>2.5</sub> and arsenic are two of the most hazardous substances for humans that coexist worldwide. Independently, they might cause multiple organ damage. However, the combined effect of PM<sub>2.5</sub> and arsenic has not been studied. Here, we used an animal model of simultaneous exposure to arsenic and PM<sub>2.5</sub>. Adult Wistar rats were exposed to PM<sub>2.5</sub>, As, or PM<sub>2.5</sub> + As and their corresponding control groups. After 7, 14, and 28 days of exposure, the animals were euthanized and serum, lungs, kidneys, and hearts were collected. Analysis performed showed high levels of lung inflammation in all experimental groups, with an additive effect in the coexposed group. Besides, we observed cartilaginous metaplasia in the hearts of all exposed animals. The levels of creatine kinase, CK-MB, and lactate dehydrogenase increased in experimental groups. Tissue alterations might be related to oxidative stress through increased GPx and NADPH oxidase activity. The findings of this study suggest that exposure to arsenic, PM<sub>2.5</sub>, or coexposure induces high levels of oxidative stress, which might be associated with lung inflammation and heart damage. These findings highlight the importance of reducing exposure to these pollutants to protect human health.</p>","PeriodicalId":17421,"journal":{"name":"Journal of Toxicology","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2024-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11098611/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140958171","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}
引用次数: 0
Potential Toxic Metal Concentration and Risk Assessment in Agricultural Soil and Lentil Crop (Lens culinaris Medik) in Dawunt Woreda, Northwest Wollo, Ethiopia 埃塞俄比亚沃洛西北部 Dawunt Woreda 农业土壤和扁豆作物(Lens culinaris Medik)中的潜在有毒金属浓度和风险评估
IF 2.9
Journal of Toxicology Pub Date : 2024-04-12 DOI: 10.1155/2024/8985402
Baynesagn Biyazen Belay, Asamene Embiale Taye
{"title":"Potential Toxic Metal Concentration and Risk Assessment in Agricultural Soil and Lentil Crop (Lens culinaris Medik) in Dawunt Woreda, Northwest Wollo, Ethiopia","authors":"Baynesagn Biyazen Belay, Asamene Embiale Taye","doi":"10.1155/2024/8985402","DOIUrl":"https://doi.org/10.1155/2024/8985402","url":null,"abstract":"Health implications for the population due to consuming contaminated crops have been a great concern worldwide. This study aimed to measure the levels of potential toxic elements in lentils and their growing soil in Dawunt Woreda, Ethiopia. Accordingly, 15 soil samples along with the lentil samples were collected to measure the level of potential toxic elements, including chromium (Cr), manganese (Mn), iron (Fe), lead (Pb), cadmium (Cd), copper (Cu), and cobalt (Co), by using an inductively coupled plasma optical emission spectrometer and for assessing the potential ecological and human health risk. The wet digestion method using aqua regia (HCl/HNO3 3 : 1) was employed for soil and lentil sample preparation. The mean concentrations of Fe, Mn, Co, Cu, Cd, Pb, and Cr in the lentil sample were 60.4, 9.68, 0.75, 5.7, 0.25, 0.9, and 1.15 mg/kg, respectively. In soil, the mean concentrations of Fe, Mn, Co, Cu, Cd, Pb, and Cr were 649, 19.9, 3.32, 40.0, 15.2, 1.83, and 69.1 mg/kg, respectively. All of the potential toxic metals in agricultural soil and lentil samples were found to be below the reference level set by the World Health Organization, except Cd, in the soil samples. Five single metal and three cumulative pollution index parameters were employed for the data and results showed that Fe, Cu, and Cr moderately pollute the soil and are highly contaminated by Cd. The cumulative pollution indices also confirmed that the extent of soil pollution varied from highly contaminated to moderate contamination. The possible health risks at various exposure routes have also been estimated. The single-metal and cumulative-metals health risks (cancer and noncancer) of adults and children due to chronic exposure to soil and consumption of lentils were estimated using the health quotient and health index values as per the United States Environmental Protection Agency guidelines. Thus, the results revealed no significant adverse health risks (cancer and noncancer) for adults and children. Therefore, the inhabitants in the study area have no significant health impacts due to either the consumption of lentil crops or exposure to agricultural soil particles.","PeriodicalId":17421,"journal":{"name":"Journal of Toxicology","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140710368","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
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