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Yang Y, Jiang W, Guo H. Elimination of Chlorella using peracetic acid activated by dielectric barrier discharge plasma: Mechanism and cell deactivation process. Bioresour Technol 2024; 400:130651. [PMID: 38570100 DOI: 10.1016/j.biortech.2024.130651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/20/2024] [Accepted: 04/01/2024] [Indexed: 04/05/2024]
Abstract
Excessive proliferation of algae in water depletes dissolved oxygen, resulting in the demise of aquatic life and environmental damage. This study delves into the effectiveness of the dielectric barrier discharge (DBD) plasma activated peracetic acid (PAA) system in deactivating Chlorella. Within 15 min, the algae removal effectiveness reached 89 % under ideal trial conditions. DBD plasma activation of PAA augmented the concentration of reactive species such as ·OH, 1O2, and organic radicals (RO·) in the solution, which are involved in the process of cell inactivation. Reactive oxygen species (ROS) within Chlorella cells continued to rise as a result of treatment-induced damage to the morphological structure and cell membrane of the organism. DNA and chlorophyll-a (Chl-a), were oxidized and destroyed by these invasive active compounds. This study presents an efficient advanced oxidation method to destroy algal cells and adds an alternative strategy for algal control in areas where eutrophication occurs.
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Affiliation(s)
- Yexiang Yang
- College of Ecology and the Environment, Nanjing Forestry University, Nanjing 210037, PR China
| | - Wenxuan Jiang
- College of Ecology and the Environment, Nanjing Forestry University, Nanjing 210037, PR China
| | - He Guo
- College of Ecology and the Environment, Nanjing Forestry University, Nanjing 210037, PR China.
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2
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de Araujo GF, do Espírito Santo DG, Júnior SFS, Correia FV, Saggioro EM. Toxicological approaches as tool to assess the effects of a mixture of photocatalytic degradation products originated from the unregulated neonicotinoid acetamiprid employing a terrestrial organism (Eisenia andrei). Sci Total Environ 2024; 906:167271. [PMID: 37777123 DOI: 10.1016/j.scitotenv.2023.167271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 08/25/2023] [Accepted: 09/20/2023] [Indexed: 10/02/2023]
Abstract
Acetamiprid (ACT) has been detected in several water sources in Latin America. The presence of its degradation products in the environment is not negligible and transformation products (TPs) significantly contribute to environmental health risks. Although advanced oxidative processes are promising for the treatment of this neocotinoid, effects of these are still unknown. In this context, the effects of a mixture of photocatalytic degradation products resulting from an ACT treatment for 90 min employing TiO2/UV on cytotoxicity and oxidative stress parameters in Eisenia andrei earthworms in acute and chronic experiments using typical Latin American soil were assessed. Acute contact tests were performed (72 h) using a filter paper moistened with an ACT solution and a chronic test was performed using Oxisoil (200 g) moistened with an ACT solution for 45 days. Catalase (CAT) and glutathione-S-transferase (GST) activities, reduced glutathione (GSH) levels and cytotoxicity (cellular eleocyte and amoebocyte assessments) were investigated. Over 75 % of ACT was degraded within the first 15 min of treatment, with levels below the limit of detection after 60 min. The acute test revealed greater cytotoxic effects associated with the effluents treated for T0 and T15 min, with decreased cell density noted after 48 h of exposure, in addition to CAT induction (in all treatments) and GST induction following T0, T15 and T90 min exposures. Concerning the chronic assay, decreases in cell density (T0, T15, T60 and T90 min) and viability (T0, T60 and T90 min) were observed after 45 days, in addition to induced CAT activity following T0, T15 and T60 exposures and GST induction following the T60 min exposure. Reduced glutathione levels were unaltered, comprising the least sensitive biomarker among the investigated parameters to the treated effluent exposures. The mixture of ACT degradation products can cause toxic effects to non-target organisms, despite parent compound degradation, alerting for the need for ecotoxicological tests to prove decreased effluent toxicity, in addition to the improvement of degradation techniques.
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Affiliation(s)
- Gabriel Farias de Araujo
- Programa de Pós-Graduação em Saúde Pública e Meio Ambiente, Sergio Arouca National School of Public Health, Oswaldo Cruz Foundation, Av. Leopoldo Bulhões 1480, 21041-210 Rio de Janeiro, RJ, Brazil
| | - Danielli Gundes do Espírito Santo
- Programa de Pós-Graduação em Saúde Pública e Meio Ambiente, Sergio Arouca National School of Public Health, Oswaldo Cruz Foundation, Av. Leopoldo Bulhões 1480, 21041-210 Rio de Janeiro, RJ, Brazil
| | - Sidney Fernandes Sales Júnior
- Programa de Pós-Graduação em Saúde Pública e Meio Ambiente, Sergio Arouca National School of Public Health, Oswaldo Cruz Foundation, Av. Leopoldo Bulhões 1480, 21041-210 Rio de Janeiro, RJ, Brazil
| | - Fábio Veríssimo Correia
- Programa de Pós-Graduação em Saúde Pública e Meio Ambiente, Sergio Arouca National School of Public Health, Oswaldo Cruz Foundation, Av. Leopoldo Bulhões 1480, 21041-210 Rio de Janeiro, RJ, Brazil; UNIRIO, Departamento de Ciências Naturais, Av. Pasteur, 458, Urca, 22290-20 Rio de Janeiro, Brazil; Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av. Brasil, 4.365, Manguinhos, 21040-360 Rio de Janeiro, Brazil
| | - Enrico Mendes Saggioro
- Programa de Pós-Graduação em Saúde Pública e Meio Ambiente, Sergio Arouca National School of Public Health, Oswaldo Cruz Foundation, Av. Leopoldo Bulhões 1480, 21041-210 Rio de Janeiro, RJ, Brazil; Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av. Brasil, 4.365, Manguinhos, 21040-360 Rio de Janeiro, Brazil.
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Mansoor S, Mir MA, Karunathilake EMBM, Rasool A, Ştefănescu DM, Chung YS, Sun HJ. Strigolactones as promising biomolecule for oxidative stress management: A comprehensive review. Plant Physiol Biochem 2024; 206:108282. [PMID: 38147706 DOI: 10.1016/j.plaphy.2023.108282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/22/2023] [Accepted: 12/12/2023] [Indexed: 12/28/2023]
Abstract
Strigolactones, which are a group of plant hormones, have emerged as promising biomolecules for effectively managing oxidative stress in plants. Oxidative stress occurs when the production of reactive oxygen species (ROS) exceeds the plant's ability to detoxify or scavenge these harmful molecules. An elevation in reactive oxygen species (ROS) levels often occurs in response to a range of stressors in plants. These stressors encompass both biotic factors, such as fungal, viral, or nematode attacks, as well as abiotic challenges like intense light exposure, drought, salinity, and pathogenic assaults. This ROS surge can ultimately lead to cellular harm and damage. One of the key ways in which strigolactones help mitigate oxidative stress is by stimulating the synthesis and accumulation of antioxidants. These antioxidants act as scavengers of ROS, neutralizing their harmful effects. Additionally, strigolactones also regulate stomatal closure, which reduces water loss and helps alleviate oxidative stress during conditions of drought stress or water deficiencies. By understanding and harnessing the capabilities of strigolactones, it becomes possible to enhance crop productivity and enable plants to withstand environmental stresses in the face of a changing climate. This comprehensive review provides an in-depth exploration of the various roles of strigolactones in plant growth, development, and response to various stresses, with a specific emphasis on their involvement in managing oxidative stress. Strigolactones also play a critical role in detoxifying ROS while regulating the expression of genes related to antioxidant defense pathways, striking a balance between ROS detoxification and production.
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Affiliation(s)
- Sheikh Mansoor
- Department of Plant Resources and Environment, Jeju National University, Jeju, Republic of Korea
| | - Mudasir A Mir
- Division of Plant Biotechnology, Sher-e-Kashmir University of Agricultural Sciences and Technology Kashmir (SKUAST-K), Shalimar, Srinagar, J&K, 190025, India
| | - E M B M Karunathilake
- Department of Plant Resources and Environment, Jeju National University, Jeju, Republic of Korea
| | - Aatifa Rasool
- Department of Fruit Sciences, Sher-e-Kashmir University of Agricultural Sciences and Technology Kashmir (SKUAST-K), Shalimar, Srinagar, J&K, 190025, India
| | - Dragoş Mihail Ştefănescu
- Department of Biology and Environmental Engineering, University of Craiova, A.I.Cuza 13, 200585, Craiova, Romania
| | - Yong Suk Chung
- Department of Plant Resources and Environment, Jeju National University, Jeju, Republic of Korea
| | - Hyeon-Jin Sun
- Subtropical Horticulture Research Institute, Jeju National University, Jeju, 63243, Republic of Korea.
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Torres-Narváez JC, Pérez-Torres I, del Valle-Mondragón L, Castrejón-Tellez V, Guarner-Lans V, Sánchez-Aguilar M, Varela-López E, Vargas-González Á, Pastelín-Hernández G, Díaz-Juárez JA. Garlic prevents the oxidizing and inflammatory effects of sepsis induced by bacterial lipopolysaccharide at the systemic and aortic level in the rat. Role of trpv1. Heliyon 2023; 9:e21230. [PMID: 38045135 PMCID: PMC10692780 DOI: 10.1016/j.heliyon.2023.e21230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 09/18/2023] [Accepted: 10/18/2023] [Indexed: 12/05/2023] Open
Abstract
Garlic (Allium sativum) possesses healing properties for diseases like systemic arterial hypertension, cancer and diabetes, among others. Its main component, allicin, binds to the Transient Receptor Potential Vanilloid Type 1 (TRPV1). In this study, we investigated TRPV1's involvement in the regulation of various molecules at the systemic and aortic levels in Wistar rats treated with bacterial lipopolysaccharide (LPS) and garlic to activate the receptor. The experimental groups were as follows: 1) Control, 2) LPS, 3) Garlic, and 4) LPS + Garlic. Using Uv-visible spectrophotometry and capillary zone electrophoresis, we measured the levels of nitric oxide (NO), biopterins BH2 and BH4, total antioxidant capacity (TAC) and oxidizing capacity (OXCA). We also analyzed molecules related to vascular homeostasis such as angiotensin Ang 1-7 and Ang II, as well as endothelin ET-1. In addition, we assessed the inflammatory response by determining the levels of interleukin-6 (IL-6), tumor necrosis factor alpha (TNFα), and galectin-3 (GTN-3). For cell damage assessment, we measured levels of malondialdehyde (MDA), malonate (MTO) and 8-hydroxy-2-deoxyguanosine (8HO2dG). The results showed that LPS influenced the NO pathway at both systemic and aortic levels by increasing OXCA and reducing TAC. It also disrupted vascular homeostasis by increasing Ang-II and ET-1, while decreasing Ang1-7 levels. IL-6, TNFα, GTN-3, as well as MDA, MTO, and 8HO2dG were significantly elevated compared to the control group. The expression of iNOS was increased, but TRPV1 remained unaffected by LPS. However, garlic treatment effectively mitigated the effects of LPS and significantly increased TRPV1 expression. Furthermore, LPS caused a significant decrease in calcitonin gene-related peptide (CGRP) in the aorta, which was counteracted by garlic treatment. Overall, TRPV1 appears to play a crucial role in regulating oxidative stress and the molecules involved in damage and inflammation induced by LPS. Thus, studying TRPV1, CGRP, and allicin may offer a potential strategy for mitigating inflammatory and oxidative stress in sepsis.
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Affiliation(s)
- Juan Carlos Torres-Narváez
- Departamento de Farmacología Dr. Rafael Méndez Martínez, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano No. 1, Col. Sección XVI, 14080, Tlalpan, Ciudad de México, Mexico
| | - Israel Pérez-Torres
- Departamento de Biomedicina Cardiovascular, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano No. 1, Col. Sección XVI, 14080, Tlalpan, Ciudad de México, Mexico
| | - Leonardo del Valle-Mondragón
- Departamento de Farmacología Dr. Rafael Méndez Martínez, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano No. 1, Col. Sección XVI, 14080, Tlalpan, Ciudad de México, Mexico
| | - Vicente Castrejón-Tellez
- Departamento de Fisiología, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano No. 1, Col. Sección XVI, 14080, Tlalpan, Ciudad de México, Mexico
| | - Verónica Guarner-Lans
- Departamento de Fisiología, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano No. 1, Col. Sección XVI, 14080, Tlalpan, Ciudad de México, Mexico
| | - María Sánchez-Aguilar
- Departamento de Farmacología Dr. Rafael Méndez Martínez, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano No. 1, Col. Sección XVI, 14080, Tlalpan, Ciudad de México, Mexico
| | - Elvira Varela-López
- Laboratorio de Cardiología Translacional, Unidad de Investigación en Medicina Translacional UNAM/INCAR, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano No. 1, Col. Sección XVI, 14080, Tlalpan, Ciudad de México, Mexico
| | - Álvaro Vargas-González
- Departamento de Fisiología, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano No. 1, Col. Sección XVI, 14080, Tlalpan, Ciudad de México, Mexico
| | - Gustavo Pastelín-Hernández
- Departamento de Farmacología Dr. Rafael Méndez Martínez, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano No. 1, Col. Sección XVI, 14080, Tlalpan, Ciudad de México, Mexico
| | - Julieta Anabell Díaz-Juárez
- Departamento de Farmacología Dr. Rafael Méndez Martínez, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano No. 1, Col. Sección XVI, 14080, Tlalpan, Ciudad de México, Mexico
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Andrade M, Soares AMVM, Solé M, Pereira E, Freitas R. Assessing the impact of terbium on Mytilus galloprovincialis: Metabolic and oxidative stress responses. Chemosphere 2023:139299. [PMID: 37353169 DOI: 10.1016/j.chemosphere.2023.139299] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 06/19/2023] [Accepted: 06/20/2023] [Indexed: 06/25/2023]
Abstract
The increasing demand for electric and electronic equipment has led to a rise in potentially hazardous electronic waste, including rare-earth elements (REEs), such as terbium (Tb), which have been already detected in aquatic systems. This study investigated the biochemical effects of anthropogenic Tb on mussels over a 28-day period. The mussels were exposed to different concentrations of Tb (0, 5, 10, 20, 40 μg/L), and biomarkers related to metabolism, oxidative stress, cellular damage, and neurotoxicity were evaluated. Bioaccumulation of Tb in the mussels' tissue increased with exposure concentrations, but the bioconcentration factor remained similar between treatments. Exposure to Tb enhanced glycogen consumption and decreased metabolic capacity which could be seen as a physiological adaptation to limit Tb accumulation. Antioxidant defenses and glutathione S-transferases showed a more complex dose-response, with enzymatic responses increasing until 10 μg/L but then returning to control levels at 20 μg/L. At 40 μg/L, enzymatic responses were also enhanced but to a lower extent than at 10 μg/L. The presence of Tb had clearly an inhibitory effect on biotransformation enzymes such as carboxylesterases in a dose-dependent manner. Likely, thanks to biochemical and physiological adaptations, no cellular damage or neurotoxicity was observed in any treatments, confirming the mussels' ability to tolerate Tb exposure. Nevertheless, prolonged exposure to these concentrations could lead to harmful consequences when facing other environmental stressors, such as misallocating energy resources for growth, reproduction, and defense mechanisms.
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Affiliation(s)
- Madalena Andrade
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Amadeu M V M Soares
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Montserrat Solé
- Departamento de Recursos Marinos Renovables, Instituto de Ciencias Del Mar ICM-CSIC, Barcelona, Spain
| | - Eduarda Pereira
- Departamento de Química & LAQV-REQUIMTE, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Rosa Freitas
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193, Aveiro, Portugal.
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Tamagno WA, Alves C, Pompermaier A, Veneral AL, Duarte Lampugnani JA, Reolon GK, Gil Barcellos LJ. Transfluthrin- and prallethrin-based insecticides elicit specific enzymatic antioxidant responses in different tissue of zebrafish. Environ Pollut 2023; 327:121530. [PMID: 37004863 DOI: 10.1016/j.envpol.2023.121530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 02/22/2023] [Accepted: 03/27/2023] [Indexed: 06/19/2023]
Abstract
Pyrethroids prallethrin (P-BI) and transfluthrin (T-BI) are among the most commonly used molecules with insecticide action. These molecules comprise different formulations of insecticides largely used in household, agricultural, and animal production fields. However, the increased use of these molecules has led to concerns regarding their safety in animals and humans. Oxidative stress (OS) is believed to be easily established by xenobiotic contacts, such as pyrethroids. We aimed to evaluate and understand the impact of two household insecticides and two doses applied to different tissues of the antioxidant system of zebrafish (Danio rerio). We observed that the effect on the antioxidant system differed between tissues. The muscle was the most affected tissue in the body, the antioxidant enzymes were activated, and a mechanism of non-enzymatic antioxidants was activated; however, it could still cause cellular damage. The observed effect on muscle may be related to the progression of neurodegenerative conditions. In addition, in the brain, these compounds can inactivate the first line of enzymatic antioxidant defense, which is compensated for by the second line, avoiding cellular damage. Ultimately, the gill tissue did not appear to suffer lipid damage, but heme group formation was largely affected by the compounds.
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Affiliation(s)
- Wagner Antonio Tamagno
- Graduate Program in Pharmacology, Universidade Federal de Santa Maria Roraima, 1000, Cidade Universitária, Camobi, Santa Maria, RS, 97105-900, Brazil; Biochemistry and Molecular Biology Laboratory, Rosilene Rodrigues Kaizer, Federal Institute of Education, Science and Technology of Rio Grande do Sul, Campus Sertão, ERS 135, km 25, Eng. English, RS, 99170-000, Brazil.
| | - Carla Alves
- Biochemistry and Molecular Biology Laboratory, Rosilene Rodrigues Kaizer, Federal Institute of Education, Science and Technology of Rio Grande do Sul, Campus Sertão, ERS 135, km 25, Eng. English, RS, 99170-000, Brazil.
| | - Aline Pompermaier
- Graduate Program in Bioexperimentation Universidade de Passo Fundo, BR 285, São José, Passo Fundo, RS, 99052-900, Brazil.
| | - André Luis Veneral
- Graduate Program in Bioexperimentation Universidade de Passo Fundo, BR 285, São José, Passo Fundo, RS, 99052-900, Brazil.
| | - João Antônio Duarte Lampugnani
- Graduate Program in Bioexperimentation Universidade de Passo Fundo, BR 285, São José, Passo Fundo, RS, 99052-900, Brazil.
| | - Gustavo Kellermann Reolon
- Biochemistry and Molecular Biology Laboratory, Rosilene Rodrigues Kaizer, Federal Institute of Education, Science and Technology of Rio Grande do Sul, Campus Sertão, ERS 135, km 25, Eng. English, RS, 99170-000, Brazil.
| | - Leonardo José Gil Barcellos
- Graduate Program in Pharmacology, Universidade Federal de Santa Maria Roraima, 1000, Cidade Universitária, Camobi, Santa Maria, RS, 97105-900, Brazil; Graduate Program in Bioexperimentation Universidade de Passo Fundo, BR 285, São José, Passo Fundo, RS, 99052-900, Brazil.
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Nithiyanandam S, Evan Prince S. Caesalpinia bonducella mitigates oxidative damage by paracetamol intoxication in the kidney and intestine via modulating pro/anti-inflammatory and apoptotic signaling: an In vivo mechanistic insight. 3 Biotech 2023; 13:176. [PMID: 37188289 PMCID: PMC10175523 DOI: 10.1007/s13205-023-03601-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 04/29/2023] [Indexed: 05/17/2023] Open
Abstract
Protracted use of paracetamol at therapeutic/toxic doses readily induces major organ toxicity and poor clinical efficacy. Caesalpinia bonducella seeds possess a diverse range of biological and therapeutic activities. Thus, our study aimed to scrutinize the toxic effects of paracetamol and the potential renal and intestinal protective effects of Caesalpinia bonducella seed extract (CBSE). To Wistar rats, CBSE was administered for 8 days (300 mg/kg, p.o.) with or without paracetamol (2000 mg/kg, p.o.) on the 8th day. Pertinent toxicity assessments in the kidney and intestine were analyzed at the end of the study. The CBASE's phytochemical components were examined using gas chromatography-mass spectrometry (GC-MS). After the study period, study findings evidenced that paracetamol intoxication induced elevation of renal enzyme indicators, oxidative damage, imbalance with the pro/anti-inflammatory production and pro/anti-apoptotic mediators, and tissue injury; all repercussions were alleviated by pre-treatment with CBASE. CBASE considerably reduced (P < 0.05) paracetamol-induced kidney and intestine injury by limiting caspase-8/3 signaling and amplification of inflammation in renal and intestinal tissue by significantly reducing pro-inflammatory cytokine production. As per the GC-MS report, three main bioactive components-Piperine, Isocaryophyllene, and Tetradec-13-en-11-yn-1-ol were predominant and have protective activities. Our study ascertains that CBSE pre-treatment exerts potent renal and intestine protection against paracetamol intoxication. Thus, CBSE could be a prospective therapeutic candidate for protecting the kidney and intestine from the severity of paracetamol intoxication.
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Affiliation(s)
- Sangeetha Nithiyanandam
- School of Biosciences and Technology, Vellore Institute of Technology, Vellore, 632014 Tamil Nadu India
| | - Sabina Evan Prince
- School of Biosciences and Technology, Vellore Institute of Technology, Vellore, 632014 Tamil Nadu India
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Paesa M, Remirez de Ganuza C, Alejo T, Yus C, Irusta S, Arruebo M, Sebastian V, Mendoza G. Elucidating the mechanisms of action of antibiotic-like ionic gold and biogenic gold nanoparticles against bacteria. J Colloid Interface Sci 2023; 633:786-799. [PMID: 36493743 DOI: 10.1016/j.jcis.2022.11.138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 11/17/2022] [Accepted: 11/27/2022] [Indexed: 11/30/2022]
Abstract
The antimicrobial action of gold depends on different factors including its oxidation state in the intra- and extracellular medium, the redox potential, its ability to produce reactive oxygen species (ROS), the medium components, the properties of the targeted bacteria wall, its penetration in the bacterial cytosol, the cell membrane potential, and its interaction with intracellular components. We demonstrate that different gold species are able to induce bacterial wall damage as a result of their electrostatic interaction with the cell membrane, the promotion of ROS generation, and the consequent DNA damage. In-depth genomic and proteomic studies on Escherichia coli confirmed the superior toxicity of Au (III) vs Au (I) based on the different molecular mechanisms analyzed including oxidative stress, bacterial energetic metabolism, biosynthetic processes, and cell transport. At equivalent bactericidal doses of Au (III) and Au (I) eukaryotic cells were not as affected as bacteria did, maintaining unaffected cell viability, morphology, and focal adhesions; however, increased ROS generation and disruption in the mitochondrial membrane potential were also observed. Herein, we shed light on the antimicrobial mechanisms of ionic and biogenic gold nanoparticles against bacteria. Under selected conditions antibiotic-like ionic gold can exert a strong antimicrobial activity while being harmless to human cells.
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Affiliation(s)
- Monica Paesa
- Department of Chemical Engineering, University of Zaragoza, Campus Río Ebro-Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain; Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain
| | - Cristina Remirez de Ganuza
- Department of Chemical Engineering, University of Zaragoza, Campus Río Ebro-Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain; Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain
| | - Teresa Alejo
- Department of Chemical Engineering, University of Zaragoza, Campus Río Ebro-Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain; Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain; Aragon Health Research Institute (IIS Aragon), 50009-Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029-Madrid, Spain
| | - Cristina Yus
- Department of Chemical Engineering, University of Zaragoza, Campus Río Ebro-Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain
| | - Silvia Irusta
- Department of Chemical Engineering, University of Zaragoza, Campus Río Ebro-Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain; Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain; Aragon Health Research Institute (IIS Aragon), 50009-Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029-Madrid, Spain
| | - Manuel Arruebo
- Department of Chemical Engineering, University of Zaragoza, Campus Río Ebro-Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain; Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain; Aragon Health Research Institute (IIS Aragon), 50009-Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029-Madrid, Spain.
| | - Víctor Sebastian
- Department of Chemical Engineering, University of Zaragoza, Campus Río Ebro-Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain; Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain; Aragon Health Research Institute (IIS Aragon), 50009-Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029-Madrid, Spain.
| | - Gracia Mendoza
- Aragon Health Research Institute (IIS Aragon), 50009-Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029-Madrid, Spain
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Whitehall JC, Smith ALM, Greaves LC. Mitochondrial DNA Mutations and Ageing. Subcell Biochem 2023; 102:77-98. [PMID: 36600130 DOI: 10.1007/978-3-031-21410-3_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Mitochondria are subcellular organelles present in most eukaryotic cells which play a significant role in numerous aspects of cell biology. These include carbohydrate and fatty acid metabolism to generate cellular energy through oxidative phosphorylation, apoptosis, cell signalling, haem biosynthesis and reactive oxygen species production. Mitochondrial dysfunction is a feature of many human ageing tissues, and since the discovery that mitochondrial DNA mutations were a major underlying cause of changes in oxidative phosphorylation capacity, it has been proposed that they have a role in human ageing. However, there is still much debate on whether mitochondrial DNA mutations play a causal role in ageing or are simply a consequence of the ageing process. This chapter describes the structure of mammalian mitochondria, and the unique features of mitochondrial genetics, and reviews the current evidence surrounding the role of mitochondrial DNA mutations in the ageing process. It then focusses on more recent discoveries regarding the role of mitochondrial dysfunction in stem cell ageing and age-related inflammation.
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Affiliation(s)
- Julia C Whitehall
- Wellcome Centre for Mitochondrial Research, Biosciences Institute, Newcastle University, Newcastle Upon Tyne, UK
| | - Anna L M Smith
- Wellcome Centre for Mitochondrial Research, Biosciences Institute, Newcastle University, Newcastle Upon Tyne, UK
| | - Laura C Greaves
- Wellcome Centre for Mitochondrial Research, Biosciences Institute, Newcastle University, Newcastle Upon Tyne, UK.
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Figueiredo C, Grilo TF, Oliveira R, Ferreira IJ, Gil F, Lopes C, Brito P, Ré P, Caetano M, Diniz M, Raimundo J. Single and combined ecotoxicological effects of ocean warming, acidification and lanthanum exposure on the surf clam (Spisula solida). Chemosphere 2022; 302:134850. [PMID: 35551939 DOI: 10.1016/j.chemosphere.2022.134850] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/28/2022] [Accepted: 05/02/2022] [Indexed: 06/15/2023]
Abstract
Lanthanum (La) is one of the most abundant emergent rare earth elements. Its release into the environment is enhanced by its use in various industrial applications. In the aquatic environment, emerging contaminants are one of the stressors with the ability to compromise the fitness of its inhabitants. Warming and acidification can also affect their resilience and are another consequence of the growing human footprint on the planet. However, from information gathered in the literature, a study on the effects of ocean warming, acidification, and their interaction with La was never carried out. To diminish this gap of knowledge, we explored the effects, combined and as single stressors, of ocean warming, acidification, and La (15 μg L-1) accumulation and elimination on the surf clam (Spisula solida). Specimens were exposed for 7 days and depurated for an additional 7-day period. Furthermore, a robust set of membrane-associated, protein, and antioxidant enzymes and non-enzymatic biomarkers (LPO, HSP, Ub, SOD, CAT, GPx, GST, TAC) were quantified. Lanthanum was bioaccumulated after just one day of exposure, in both control and climate change scenarios. A 7-day depuration phase was insufficient to achieve control values and in a warming scenario, La elimination was more efficient. Biochemical response was triggered, as highlighted by enhanced SOD, CAT, GST, and TAC levels, however as lipoperoxidation was observed it was insufficient to detoxify La and avoid damage. The HSP was largely inhibited in La treatments combined with warming and acidification. Concomitantly, lipoperoxidation was highest in clams exposed to La, warming, and acidification combined. The results highlight the toxic effects of La on this bivalve species and its enhanced potential in a changing world.
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Affiliation(s)
- Cátia Figueiredo
- MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal; Division of Oceanography and Marine Environment, IPMA - Portuguese Institute for Sea and Atmosphere, Av. Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal; Associate Laboratory i4HB - Institute for Health and Bioeconomy, School of Science and Technology, NOVA University Lisbon, 2819-516, Caparica, Portugal.
| | - Tiago F Grilo
- MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal
| | - Rui Oliveira
- Division of Oceanography and Marine Environment, IPMA - Portuguese Institute for Sea and Atmosphere, Av. Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal
| | - Inês João Ferreira
- LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology, 2829-516, Caparica, Portugal
| | - Fátima Gil
- Aquário Vasco da Gama, Rua Direita Do Dafundo, 1495-718, Cruz Quebrada, Portugal
| | - Clara Lopes
- Division of Oceanography and Marine Environment, IPMA - Portuguese Institute for Sea and Atmosphere, Av. Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal; CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, Avenida General Norton de Matos S/N, 4450-208, Matosinhos, Portugal
| | - Pedro Brito
- Division of Oceanography and Marine Environment, IPMA - Portuguese Institute for Sea and Atmosphere, Av. Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal; CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, Avenida General Norton de Matos S/N, 4450-208, Matosinhos, Portugal
| | - Pedro Ré
- MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal
| | - Miguel Caetano
- Division of Oceanography and Marine Environment, IPMA - Portuguese Institute for Sea and Atmosphere, Av. Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal; CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, Avenida General Norton de Matos S/N, 4450-208, Matosinhos, Portugal
| | - Mário Diniz
- Associate Laboratory i4HB - Institute for Health and Bioeconomy, School of Science and Technology, NOVA University Lisbon, 2819-516, Caparica, Portugal; UCIBIO - Applied Molecular Biosciences Unit, Department of Chemistry / Department of Life Sciences, School of Science and Technology, NOVA University Lisbon, 2819-516, Caparica, Portugal
| | - Joana Raimundo
- Division of Oceanography and Marine Environment, IPMA - Portuguese Institute for Sea and Atmosphere, Av. Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal; CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, Avenida General Norton de Matos S/N, 4450-208, Matosinhos, Portugal
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Farjallah MA, Graja A, Mahmoud LB, Ghattassi K, Boudaya M, Driss T, Jamoussi K, Sahnoun Z, Souissi N, Hammouda O. Effects of melatonin ingestion on physical performance and biochemical responses following exhaustive running exercise in soccer players. Biol Sport 2022; 39:473-9. [PMID: 35309526 DOI: 10.5114/biolsport.2022.106385] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 03/15/2021] [Accepted: 05/15/2021] [Indexed: 12/30/2022] Open
Abstract
Antioxidant supplementation has become a common practice among athletes to boost sport achievement. Likewise, melatonin (MEL) has been ingested as an ergogenic aid to improve physical performance. To date, no study has checked whether the multiple beneficial effects of MEL have an outcome during a maximum running exercise until exhaustion. Therefore, the present study aimed to evaluate the effect of MEL ingestion on physical performance and biochemical responses (i.e., oxidative stress) during exhaustive exercise. In a double blind randomized study, thirteen professional soccer players [age: 17.5 ± 0.8 years, body mass: 70.3 ± 3.9 kg, body height: 1.80 ± 0.08 m; maximal aerobic speed (MAS): 16.85 ± 0.63 km/h; mean ± standard deviation], members of a first league squad, performed a running exercise until exhaustion at 100% of MAS, after either MEL or placebo ingestion. Physical performance was assessed, and blood samples were obtained at rest and following the exercise. Compared to placebo, MEL intake prevented the increase in oxidative stress markers (i.e., malondialdehyde), alleviated the alteration of antioxidant status (i.e., glutathione peroxidase, uric acid and total bilirubin) and decreased post-exercise biomarkers of muscle damage (i.e., creatine kinase and lactate dehydrogenase) (p < 0.05). However, physical performance was not affected by MEL ingestion (p > 0.05). In conclusion, acute MEL intake before a maximal running exercise protected athletes from oxidative stress and cellular damage but without an effect on physical performance.
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Andrade M, Soares AMVM, Solé M, Pereira E, Freitas R. Will climate changes enhance the impacts of e-waste in aquatic systems? Chemosphere 2022; 288:132264. [PMID: 34624793 DOI: 10.1016/j.chemosphere.2021.132264] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 09/07/2021] [Accepted: 09/14/2021] [Indexed: 06/13/2023]
Abstract
The increase of the worlds' population is being accompanied by the exponential growth in waste of electrical and electronic equipment (e-waste) generation as a result of the rapid technological implementations. The inappropriate processing and disposal of this e-waste, containing rare-earth elements (REEs) such as gadolinium (Gd), may enhance its occurrence in the environment. In particular, the presence of Gd in marine systems may lead to environmental risks which are still unknown, especially considering foreseen climate modifications such as water salinity shifts due to extreme weather events. Within this context, the present study intended to assess the combined effects of Gd at variable salinities. For that, biochemical modifications were assessed in mussels, Mytilus galloprovincialis, exposed to Gd (0 and 10 μg/L) and different salinity levels (20, 30 and 40), acting individually and in combination. A decrease in salinity, induced an array of biochemical effects associated to hypotonic stress in non-contaminated and contaminated mussels, including metabolism, antioxidant and biotransformation defenses activation. Moreover, in Gd-contaminated organisms, the increase in salinity was responsible for a significant reduction of metabolic and defense mechanisms, possibly associated with a mussels' physiological response to the stress caused by the combination of both factors. In particular, Gd caused cellular damage at all salinities, but mussels adopted different strategies under each salinity to limit the extent of oxidative stress. That is, an increase in metabolism was associated to hypotonic stress and Gd exposure, an activation of defense enzymes was revealed at the control salinity (30) and a decrease in metabolism and non-activation of defenses, associated with a possible physiological defense trait, was evidenced at the highest salinity. The different strategies adopted highlight the need to investigate the risk of emerging contaminants such as REEs at present and forecasted climate change scenarios, thus providing a more realistic environmental risk assessment.
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Affiliation(s)
- Madalena Andrade
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Amadeu M V M Soares
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Montserrat Solé
- Instituto de Ciencias del Mar ICM-CSIC, E-08003, Barcelona, Spain
| | - Eduarda Pereira
- Departamento de Química & CESAM/LAQV-REQUIMTE, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Rosa Freitas
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193, Aveiro, Portugal.
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Xiong W, Wang R, Mao W, Wu Y, Wang D, Hu Y, Liu J. Icariin and its phosphorylated derivatives reduce duck hepatitis A virus serotype 1-induced oxidative stress and inflammatory damage in duck embryonic hepatocytes through mitochondrial regulation. Res Vet Sci 2021; 139:133-9. [PMID: 34298287 DOI: 10.1016/j.rvsc.2021.07.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 07/03/2021] [Accepted: 07/13/2021] [Indexed: 11/20/2022]
Abstract
Duck hepatitis A virus serotype 1 (DHAV-1) causes acute inflammatory injury with a very high mortality rate in ducklings, leading to severe economic losses worldwide, especially in mainland China. There is an urgent need to find new treatments to prevent and control infection with DHAV-1. Not only is there a shortage of commercial anti-DHAV-1 drugs, but there are also gaps in the use and protection rates of existing commercial vaccines. We previously found that icariin (ICA), an extract of Epimedium, can reduce the mortality rate of ducklings after DHAV-1 infection, and the effect of ICA after phosphorylation modification (pICA) is more evident. In this study, we used duck embryo hepatocytes (DEHs) to investigate the mechanism of the alleviation of DHAV-1-induced inflammation and oxidative stress by ICA and pICA, and to further study their effects on hepatocyte mitochondrial function, apoptosis and cell cycle. It was found that ICA and pICA can inhibit the negative effects of DHAV-1 on apoptosis and cell cycle progression by stabilizing mitochondrial function, thereby reducing inflammation and ultimately protecting liver cells. The effects of pICA are more beneficial than those of ICA. The results of this study may be useful in the development of a new prophylactic and therapeutic strategy against DHAV-1 and other acute inflammatory diseases.
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Oğul Y, Gür F, Cengiz M, Gür B, Sarı RA, Kızıltunç A. Evaluation of oxidant and intracellular anti-oxidant activity in rheumatoid arthritis patients: In vivo and in silico studies. Int Immunopharmacol 2021; 97:107654. [PMID: 33895477 DOI: 10.1016/j.intimp.2021.107654] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 03/20/2021] [Accepted: 04/03/2021] [Indexed: 11/24/2022]
Abstract
Rheumatoid Arthritis (RA) is the most prevalent cause of the systematic inflammatory arthritis that destroys the joints. While the pathogenesis of RA remains to be clarified, the imbalance in the oxidant and anti-oxidant defense system plays a crucial role. This study aims to evaluate oxidant and anti-oxidant levels of RA patients and their impacts on the activity of the disease via in silico studies. 28 patients who had not previously received any treatment for RA and 20 healthy controls were included. Their oxidative stress markers, antioxidant markers, and inflammatory factors were investigated via in silico studies. Compared to the Control Group, serum CRP levels, MDA levels, and XO activities were higher in RA Group. Cu/ZnSOD and GPx activities decreased while CAT activities remained unchanged. Besides, there was a positive correlation between MDA-serum CRP levels but a negative correlation between MDA levels-Cu/ZnSOD activities. Furthermore, we observed a negative correlation between CRP levels and Cu/ZnSOD activities. Based on these results, it was concluded that oxidative stress had increased, the defense system had weakened, and ROS production had increased. Finally, our study results with SOD and CAT activity were confirmed by molecular docking studies.
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Affiliation(s)
- Yasemin Oğul
- Department of Medicinal Biochemistry, Regional Training and Research Hospital, Health Sciences University, 25240 Erzurum, Turkey.
| | - Fatma Gür
- Department of Medical Services and Techniques, Health Services Vocational School, Ataturk University, 25240 Erzurum, Turkey
| | - Mustafa Cengiz
- Department of Elementary Education, Faculty of Education, Siirt University, 56100 Siirt, Turkey
| | - Bahri Gür
- Department of Biochemistry, Faculty of Sciences and Arts, Iğdır University, 76000 Iğdır, Turkey
| | - Refik Ali Sarı
- Department of Internal Diseases, Faculty of Medicine, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - Ahmet Kızıltunç
- Department of Biochemistry, Faculty of Medicine, Ataturk University, 25240 Erzurum, Turkey
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Figueiredo C, Raimundo J, Lopes AR, Lopes C, Rosa N, Brito P, Diniz M, Caetano M, Grilo TF. Warming enhances lanthanum accumulation and toxicity promoting cellular damage in glass eels (Anguilla anguilla). Environ Res 2020; 191:110051. [PMID: 32818498 DOI: 10.1016/j.envres.2020.110051] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/19/2020] [Accepted: 08/05/2020] [Indexed: 06/11/2023]
Abstract
Cumulative and continuing human emissions of greenhouse gases to the atmosphere are causing ocean warming. Rising temperature is a major threat to aquatic organisms and may affect physiological responses, such as acid-base balance, often compromising species fitness and survival. It is also expected that warming may influence the availability and toxicological effects of pollutants, including Rare Earth Elements. These are contaminants of environmental emerging concern with great economic interest. This group comprises yttrium, scandium and lanthanides, being Lanthanum (La) one of the most common. The European eel (Anguilla anguilla) is critically endangered and constitutes a delicacy in South East Asia and Europe, being subject to an increasing demand on a global scale. Considering the vulnerability of early life stages to contaminants, we exposed glass eels to 1.5 μg L-1 of La for five days, plus five days of depuration, under a present-day temperature and warming scenarios (△T = +4 °C). The aim of this study was to assess the bioaccumulation, elimination and specific biochemical enzymatic endpoints in glass eels (Anguilla anguilla) tissues, under warming and La. Overall, our results showed that the accumulation and toxicity of La were enhanced with increasing temperature. The accumulation was higher in the viscera, followed by the head, and ultimately the body. Elimination was less effective under warming. Exposure to La did not impact acetylcholinesterase activity. Moreover, lipid peroxidation peaked after five days under the combined exposure of La and warming. The expression of heat shock proteins was majorly suppressed in glass eels exposed to La, at both tested temperatures. This result suggests that, when exposed to La, glass eels were unable to efficiently prevent cellular damage, with a particularly dramatic setup in a near-future scenario. Further studies are needed towards a better understanding of the effects of lanthanum in a changing world.
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Affiliation(s)
- Cátia Figueiredo
- MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal; Division of Oceanography and Marine Environment, IPMA - Portuguese Institute for Sea and Atmosphere, Av. Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal; UCIBIO, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516, Caparica, Portugal.
| | - Joana Raimundo
- MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal; CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, Avenida General Norton de Matos S/N, 4450-208, Matosinhos, Portugal
| | - Ana Rita Lopes
- MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal; MARE - Marine and Environmental Science Centre, ISPA - Instituto Universitário, R. Jardim Do Tabaco 34, 1100-304, Lisboa, Portugal
| | - Clara Lopes
- Division of Oceanography and Marine Environment, IPMA - Portuguese Institute for Sea and Atmosphere, Av. Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal; CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, Avenida General Norton de Matos S/N, 4450-208, Matosinhos, Portugal
| | - Nuno Rosa
- Division of Oceanography and Marine Environment, IPMA - Portuguese Institute for Sea and Atmosphere, Av. Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal
| | - Pedro Brito
- Division of Oceanography and Marine Environment, IPMA - Portuguese Institute for Sea and Atmosphere, Av. Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal
| | - Mário Diniz
- UCIBIO, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516, Caparica, Portugal
| | - Miguel Caetano
- Division of Oceanography and Marine Environment, IPMA - Portuguese Institute for Sea and Atmosphere, Av. Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal; CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, Avenida General Norton de Matos S/N, 4450-208, Matosinhos, Portugal
| | - Tiago F Grilo
- MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal
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Taroncher M, Rodríguez-Carrasco Y, Ruiz MJ. T-2 toxin and its metabolites: Characterization, cytotoxic mechanisms and adaptive cellular response in human hepatocarcinoma (HepG2) cells. Food Chem Toxicol 2020; 145:111654. [PMID: 32777337 DOI: 10.1016/j.fct.2020.111654] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 07/25/2020] [Accepted: 07/28/2020] [Indexed: 01/19/2023]
Abstract
The T-2 toxin (T-2) is a type A trichothecene produced by Fusarium species, and the most cytotoxic mycotoxin of the group. A study was made to determine T-2 cytotoxicity in human hepatocarcinoma (HepG2) cells; evaluate whether there is an adaptive response of HepG2 cells exposed to low concentrations of T-2; identify the T-2 metabolites by LC-Q-TOF MS; and determine whether T-2 disrupts cell proliferation in HepG2 cells. The IC50 values obtained ranged from 61.9 ± 2.4 nM to 70.7 ± 7.4 nM. No adaptive response was observed. There was no evidence of extra- or intracellular accumulation of T-2 after 24 h of exposure as determined by LC-Q-TOF MS. However, some T-2 metabolites such as HT-2 toxin, neosolaniol and T-2 triol showed important (>75%) intracellular accumulation. Cell distribution was significantly increased in SubG0/G1 phase (11.8-fold higher) and decreased (12%) in G2/M phase at 60 nM T-2, versus the control. Simultaneously, increased necrosis (238%) and apoptosis/necrosis (up to 35.5%) were observed in HepG2 cells exposed to T-2. In conclusion, the results show that T-2 leads to loss of cell viability without an adaptive response, and that the metabolites generated play an important role in T-2 cytotoxicity, increasing HepG2 cell damage.
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Affiliation(s)
- Mercedes Taroncher
- Laboratory of Food Chemistry and Toxicology, Faculty of Pharmacy, University of Valencia, Av. Vicent Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain.
| | - Yelko Rodríguez-Carrasco
- Laboratory of Food Chemistry and Toxicology, Faculty of Pharmacy, University of Valencia, Av. Vicent Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain
| | - María-José Ruiz
- Laboratory of Food Chemistry and Toxicology, Faculty of Pharmacy, University of Valencia, Av. Vicent Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain
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Balderrama-Carmona AP, Valenzuela-Rincón M, Zamora-Álvarez LA, Adan-Bante NP, Leyva-Soto LA, Silva-Beltrán NP, Morán-Palacio EF. Herbicide biomonitoring in agricultural workers in Valle del Mayo, Sonora Mexico. Environ Sci Pollut Res Int 2020; 27:28480-28489. [PMID: 31832947 DOI: 10.1007/s11356-019-07087-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 11/18/2019] [Indexed: 06/10/2023]
Abstract
Valle del Mayo is an important agricultural area at the northwest of Mexico where up to 20,000 L of a mix composed of glyphosate and tordon is used in drains and canals. This study was carried out in order to evaluate the cellular damage caused by glyphosate, aminomethylphosphonic acid (AMPA), and picloram in agricultural workers. Biomonitoring was performed through the quantification of herbicides in urine using HPLC (high-performance liquid chromatography) to then evaluate the cellular damage in exposed people by means of an evaluation of micronuclei and cellular proliferation in lymphocyte cultures. The urine samples (n = 30) have shown a concentration of up to 10.25 μg/L of picloram and 2.23 μg/L of AMPA; no positive samples for glyphosate were reported. The calculation of the external dose reveals that agricultural workers ingest up to 146 mg/kg/day; however, this concentration does not surpass the limits that are allowed internationally. As for the results for the micronuclei test, 53% of the workers showed cellular damage, and the nuclear division index test reported that there was a significant difference (P < 0.05) between the exposed and the control population, which indicated that the exposure time to pesticides in the people of Valle del Mayo can induce alterations which can cause chronic damage.
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Affiliation(s)
- Ana Paola Balderrama-Carmona
- Departamento de Ciencias Químico-Biológicas y Agropecuarias, Universidad de Sonora, Unidad Regional Sur, Blvd. Lázaro Cárdenas 100, Colonia Francisco Villa, 85880, Navojoa, Sonora, Mexico.
| | - Melissa Valenzuela-Rincón
- Departamento de Ciencias Químico-Biológicas y Agropecuarias, Universidad de Sonora, Unidad Regional Sur, Blvd. Lázaro Cárdenas 100, Colonia Francisco Villa, 85880, Navojoa, Sonora, Mexico
| | - Luis Alberto Zamora-Álvarez
- Departamento de Ciencias Químico-Biológicas y Agropecuarias, Universidad de Sonora, Unidad Regional Sur, Blvd. Lázaro Cárdenas 100, Colonia Francisco Villa, 85880, Navojoa, Sonora, Mexico
| | - Norma Patricia Adan-Bante
- Departamento de Ciencias Químico-Biológicas y Agropecuarias, Universidad de Sonora, Unidad Regional Sur, Blvd. Lázaro Cárdenas 100, Colonia Francisco Villa, 85880, Navojoa, Sonora, Mexico
| | - Luis Alonso Leyva-Soto
- Departamento de Biotecnología y Ciencias Alimentarias, Instituto Tecnológico de Sonora, 5 de febrero 818 Sur, Colonia Centro, 85000, Obregon, Sonora, Mexico
| | - Norma Patricia Silva-Beltrán
- Departamento de Ciencias de la Salud, Universidad de Sonora, Unidad Cajeme, Blvd. Bordo Nuevo S/N, Ejido Providencia, 85199, Obregon, Sonora, Mexico
| | - Edgar Felipe Morán-Palacio
- Departamento de Ciencias Químico-Biológicas y Agropecuarias, Universidad de Sonora, Unidad Regional Sur, Blvd. Lázaro Cárdenas 100, Colonia Francisco Villa, 85880, Navojoa, Sonora, Mexico
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Cabrera F, Ortega M, Velarde F, Parra E, Gallardo S, Barba D, Soto L, Peña G, Pedroza LA, Jorgensen C, Khoury M, Caicedo A. Primary allogeneic mitochondrial mix (PAMM) transfer/transplant by MitoCeption to address damage in PBMCs caused by ultraviolet radiation. BMC Biotechnol 2019; 19:42. [PMID: 31253149 PMCID: PMC6599354 DOI: 10.1186/s12896-019-0534-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 06/14/2019] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Artificial Mitochondrial Transfer or Transplant (AMT/T) can be used to reduce the stress and loss of viability of damaged cells. In MitoCeption, a type of AMT/T, the isolated mitochondria and recipient cells are centrifuged together at 4 °C and then co-incubated at 37 °C in normal culture conditions, inducing the transfer. Ultraviolet radiation (UVR) can affect mitochondria and other cell structures, resulting in tissue stress, aging, and immunosuppression. AMT/T could be used to repair UVR cellular and mitochondrial damage. We studied if a mitochondrial mix from different donors (Primary Allogeneic Mitochondrial Mix, PAMM) can repair UVR damage and promote cell survival. RESULTS Using a simplified adaption of the MitoCeption protocol, we used peripheral blood mononuclear cells (PBMCs) as the recipient cell model of the PAMM in order to determine if this protocol could repair UVR damage. Our results showed that when PBMCs are exposed to UVR, there is a decrease in metabolic activity, mitochondrial mass, and mtDNA sequence stability as well as an increase in p53 expression and the percentage of dead cells. When PAMM MitoCeption was used on UVR-damaged cells, it successfully transferred mitochondria from different donors to distinct PBMCs populations and repaired the observed UVR damage. CONCLUSION Our results represent an advancement in the applications of MitoCeption and other AMT/T. We showed that PBMCs could be used as a PAMM source of mitochondria. We also showed that these mitochondria can be transferred in a mix from different donors (PAMM) to UVR-damaged, non-adherent primary cells. Additionally, we decreased the duration of the MitoCeption protocol.
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Affiliation(s)
- Francisco Cabrera
- Colegio de Ciencias de la Salud, Escuela de Medicina Veterinaria, Universidad San Francisco de Quito, 17-12-841, Quito, Ecuador.,IRMB CHU Saint Eloi, University of Montpellier, France, 80 rue Augustin Fliche, 34295, Montpellier, cedex 5, France.,Instituto de Investigaciones en Biomedicina, Universidad San Francisco de Quito, 17-12-841, Quito, Ecuador.,Mito-Act Research Consortium, Quito, Ecuador
| | - Mayra Ortega
- Colegio de Ciencias Biológicas y Ambientales, Escuela de Biotecnología, Universidad San Francisco de Quito, 17-12-841, Quito, Ecuador.,Instituto de Investigaciones en Biomedicina, Universidad San Francisco de Quito, 17-12-841, Quito, Ecuador.,Mito-Act Research Consortium, Quito, Ecuador
| | - Francesca Velarde
- Instituto de Investigaciones en Biomedicina, Universidad San Francisco de Quito, 17-12-841, Quito, Ecuador.,Mito-Act Research Consortium, Quito, Ecuador
| | - Eliseo Parra
- Laboratory of Nano-Regenerative Medicine, Faculty of Medicine, Universidad de Los Andes, Santiago, Chile.,Consorcio Regenero, Chilean Consortium for Regenerative Medicine, Santiago, Chile.,Cells for Cells, Santiago, Chile
| | - Stephany Gallardo
- Colegio de Ciencias Biológicas y Ambientales, Escuela de Biotecnología, Universidad San Francisco de Quito, 17-12-841, Quito, Ecuador
| | - Diego Barba
- Colegio de Ciencias de la Salud, Escuela de Medicina, Universidad San Francisco de Quito, 17-12-841, Quito, Ecuador
| | - Lina Soto
- Colegio de Ciencias de la Salud, Escuela de Medicina, Universidad San Francisco de Quito, 17-12-841, Quito, Ecuador
| | - Gabriela Peña
- Colegio de Ciencias de la Salud, Escuela de Medicina, Universidad San Francisco de Quito, 17-12-841, Quito, Ecuador
| | - Luis Alberto Pedroza
- Colegio de Ciencias de la Salud, Escuela de Medicina, Universidad San Francisco de Quito, 17-12-841, Quito, Ecuador.,Baylor College of Medicine: Department of Pediatrics, Section of Immunology, Allergy, and Rheumatology, Baylor College of Medicine, Houston, TX, USA
| | - Christian Jorgensen
- IRMB CHU Saint Eloi, University of Montpellier, France, 80 rue Augustin Fliche, 34295, Montpellier, cedex 5, France.,Mito-Act Research Consortium, Quito, Ecuador
| | - Maroun Khoury
- Laboratory of Nano-Regenerative Medicine, Faculty of Medicine, Universidad de Los Andes, Santiago, Chile.,Consorcio Regenero, Chilean Consortium for Regenerative Medicine, Santiago, Chile.,Cells for Cells, Santiago, Chile.,Mito-Act Research Consortium, Quito, Ecuador
| | - Andrés Caicedo
- Colegio de Ciencias de la Salud, Escuela de Medicina, Universidad San Francisco de Quito, 17-12-841, Quito, Ecuador. .,Instituto de Investigaciones en Biomedicina, Universidad San Francisco de Quito, 17-12-841, Quito, Ecuador. .,Mito-Act Research Consortium, Quito, Ecuador. .,Sistemas Médicos, SIME, Universidad San Francisco de Quito, 17-12-841, Quito, Ecuador.
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19
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Shahid M, Khan MS. Fungicide tolerant Bradyrhizobium japonicum mitigate toxicity and enhance greengram production under hexaconazole stress. J Environ Sci (China) 2019; 78:92-108. [PMID: 30665660 DOI: 10.1016/j.jes.2018.07.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 06/24/2018] [Accepted: 07/18/2018] [Indexed: 05/28/2023]
Abstract
Bacterial strain RV9 recovered from greengram nodules tolerated 2400μg/mL of hexaconazole and was identified by 16S rDNA sequence analysis as Bradyrhizobium japonicum (KY940048). Strain RV9 produced IAA (61.6μg/mL), ACC deaminase (51.7mg/(protein·hr)), solubilized TCP (105μg/mL), secreted 337.6μg/mL EPS, and produced SA (52.2μg/mL) and 2,3-DHBA (28.3μg/mL). Exopolysaccharides produced by strain RV9 was quantified and characterized by SEM, AFM, EDX and FTIR. Beyond tolerance limit, hexaconazole caused cellular impairment and reduced the viability of strain RV9 revealed by SEM and CLSM. Hexaconazole distorted the root tips and altered nodule structure leading thereby to reduction in the performance of greengram. Also, the level of antioxidant enzymes, proline, TBARS, ROS and cell death was increased in hexaconazole treated plants. CLSM images revealed a concentration dependent increase in the characteristic green and blue fluorescence of hexaconazole treated roots. The application of B. japonicum strain RV9 alleviated the fungicide toxicity and improved the measured plant characteristics. Also, rhizobial cells were localized inside tissues as revealed by CLSM. Colonization of B. japonicum strain RV9 decreased the levels of CAT, POD, APX, GPX and TBARS by 80%, 5%, 13%, 13% and 19%, respectively over plants grown at 80μg/(hexaconazole·kg) soil. The ability to detoxify hexaconazole, colonize plant tissues, secrete PGP bioactive molecules even under fungicide pressure and its unique ability to diminish oxidative stress make B. japonicum an attractive choice for remediation of fungicide polluted soils and to concurrently enhance greengram production under stressed environment.
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Affiliation(s)
- Mohammad Shahid
- Department of Agricultural Microbiology, Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India.
| | - Mohd Saghir Khan
- Department of Agricultural Microbiology, Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India
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20
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Monteiro R, Costa S, Coppola F, Freitas R, Vale C, Pereira E. Evidences of metabolic alterations and cellular damage in mussels after short pulses of Ti contamination. Sci Total Environ 2019; 650:987-995. [PMID: 30308873 DOI: 10.1016/j.scitotenv.2018.08.314] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 08/22/2018] [Accepted: 08/23/2018] [Indexed: 06/08/2023]
Abstract
Mytilus galloprovincialis mussels were exposed to seawater contaminated with Ti. Initial concentrations were 4.1, 32, and 66 μg L-1 that declined during the first 24 h of the experiments, and after 48 h values were <2 μg L-1. Experiments were run in triplicate, under constant salinity and temperature. Mussels were fed every two days, and water renewed every seven days and Ti concentrations re-stabilized. During the first 28 days of experimental period, mussels were exposed to four short pulses of contamination, followed by few days of low Ti concentration between weekly contamination renewals. Then mussels were exposed to additional 14-day exposure to Ti uncontaminated seawater. Only residual Ti concentrations were measured in mussels' whole soft tissue after the four pulses of Ti contamination, indicating low Ti accumulation by the organisms. Nevertheless, the biomarkers related to mussels' metabolic capacity (electron transport system activity, ETS), oxidative damage (lipid peroxidation, LPO and reduced glutathione content, GSH), and defense mechanisms (antioxidant and biotransformation enzymes) evidenced the impact of Ti during the 28 days of experimental period. The biomarkers that better indicated the recovery of mussels' biochemical performance were the ETS, LPO, GSH, and the antioxidant enzyme glutathione peroxidase (GPx). LPO was the prime indicator among the analyzed biochemical responses. Organisms appear to hold coping mechanisms to lower the damage induced by Ti, and to recover, albeit the 14 days period of exposure to uncontaminated seawater following the four Ti pulses were not enough for full recovery, as evidenced by results on LPO levels and GSH concentrations. Despite the low solubility of Ti in seawater, the toxicity of this element to a model marine organism was demonstrated.
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Affiliation(s)
- Rui Monteiro
- Departamento de Química & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal; CIIMAR, Universidade do Porto, 4050-123 Porto, Portugal
| | - Silvana Costa
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Francesca Coppola
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Rosa Freitas
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
| | - Carlos Vale
- CIIMAR, Universidade do Porto, 4050-123 Porto, Portugal
| | - Eduarda Pereira
- Departamento de Química & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal
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21
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Monteiro R, Costa S, Coppola F, Freitas R, Vale C, Pereira E. Toxicity beyond accumulation of Titanium after exposure of Mytilus galloprovincialis to spiked seawater. Environ Pollut 2019; 244:845-854. [PMID: 30390458 DOI: 10.1016/j.envpol.2018.10.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 10/02/2018] [Accepted: 10/05/2018] [Indexed: 05/06/2023]
Abstract
Mytilus galloprovincialis was exposed to seawater spiked with 5, 50 and 100 μg L-1 of Titanium (Ti) for 14 days. Seawater was renewed after 96 h and new addition of Ti was done. A parallel experiment conducted in the absence of mussels showed that during the first 24 h after spiking, Ti concentrations in seawater rapidly decreased to values below 2 μg L-1. For this reason, along the entire experimental period (14 days) mussels were exposed to Ti during two short periods, in the beginning of the experiment and after seawater renewal. At 96 h, mussels exhibited low Ti concentrations (<2.5 μg g-1), close or not significantly different from a control condition (1.6 μg g-1 in the absence of Ti). Despite the low accumulated Ti in mussels' tissues after both experimental periods (96 h and 14 days), biochemical markers indicated that mussels developed two main strategies: reduction of their metabolic capacity to avoid the uptake of Ti, and antioxidant and biotransformation defense mechanisms, such as the activation of SOD, CAT, GPx and GSTs enzymes that were triggered to prevent cellular damages. Nevertheless, oxidative stress occurred after 96 h or 14 days. The current study highlights that alterations of biological activity of M. galloprovincialis exposed to Ti goes beyond its accumulation in tissues.
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Affiliation(s)
- Rui Monteiro
- Departamento de Química & CESAM, Universidade de Aveiro, 3810-193, Aveiro, Portugal; CIIMAR, Universidade do Porto, 4450-208, Matosinhos, Portugal
| | - Silvana Costa
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Francesca Coppola
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Rosa Freitas
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193, Aveiro, Portugal.
| | - Carlos Vale
- CIIMAR, Universidade do Porto, 4450-208, Matosinhos, Portugal
| | - Eduarda Pereira
- Departamento de Química & CESAM, Universidade de Aveiro, 3810-193, Aveiro, Portugal
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22
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Dżugan M, Trybus W, Lis M, Wesołowska M, Trybus E, Kopacz-Bednarska A, Król T. Cadmium-induced ultrastructural changes in primary target organs of developing chicken embryos (Gallus domesticus). J Trace Elem Med Biol 2018; 50:167-174. [PMID: 30262276 DOI: 10.1016/j.jtemb.2018.06.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 05/08/2018] [Accepted: 06/18/2018] [Indexed: 11/18/2022]
Abstract
The aim of this study was to evaluate ultrastructural changes in kidney and liver tissue of chicken embryos exposed in ovo to cadmium. Embryonated eggs were injected on the 4th day of incubation with cadmium at the dose of 0, 2, 4 and 8 μg/egg (80 eggs/group). The samples of kidney and liver tissues were collected from embryos at the 14th and 18th day of incubation (E14 and E18) and at hatching day (D1). The tissue structure was evaluated by transmission electron microscopy (Tecnai G2 Spirit). The results indicate that hepatocytes responded to damage caused by toxic cadmium activity with a significant disturbance in the structure of mitochondria and a considerable expansion of the lysososmal system, while glomerular cells additionally reacted with an increased proliferation of peroxisomes. The range of changes observed on the subcellular level was dependent on the dose of cadmium, embryogenesis stage and cell type.
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Affiliation(s)
- Małgorzata Dżugan
- Department of Chemistry and Food Toxicology, Faculty of Biology and Agriculture, University of Rzeszów, ul. Ćwiklińskiej 1, 35-601 Rzeszów, Poland.
| | - Wojciech Trybus
- Department of Cell Biology and Electronic Microscopy, Institute of Biology, The Jan Kochanowski University, ul. Świętokrzyska 15, 25-406 Kielce, Poland
| | - Marcin Lis
- Department of Veterinary and Animal Reproduction and Welfare, University of Agriculture, Aleja Mickiewicza 24/28, 30-059 Krakow, Poland
| | - Monika Wesołowska
- Department of Chemistry and Food Toxicology, Faculty of Biology and Agriculture, University of Rzeszów, ul. Ćwiklińskiej 1, 35-601 Rzeszów, Poland
| | - Ewa Trybus
- Department of Cell Biology and Electronic Microscopy, Institute of Biology, The Jan Kochanowski University, ul. Świętokrzyska 15, 25-406 Kielce, Poland
| | - Anna Kopacz-Bednarska
- Department of Cell Biology and Electronic Microscopy, Institute of Biology, The Jan Kochanowski University, ul. Świętokrzyska 15, 25-406 Kielce, Poland
| | - Teodora Król
- Department of Cell Biology and Electronic Microscopy, Institute of Biology, The Jan Kochanowski University, ul. Świętokrzyska 15, 25-406 Kielce, Poland
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23
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Hashimoto-Torii K, Sasaki M, Chang YW, Hwang H, Waxman SG, Kocsis JD, Rakic P, Torii M. Detection of local and remote cellular damage caused by spinal cord and peripheral nerve injury using a heat shock signaling reporter system. IBRO Rep 2018; 5:91-98. [PMID: 30480161 PMCID: PMC6240805 DOI: 10.1016/j.ibror.2018.11.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 11/05/2018] [Indexed: 12/14/2022] Open
Abstract
Spinal cord and peripheral nerve injury results in extensive damage to the locally injured cells as well as distant cells that are functionally connected to them. Both primary and secondary damage can cause a broad range of clinical abnormalities, including neuropathic pain and cognitive and memory dysfunction. However, the mechanisms underlying these abnormalities remain unclear, awaiting new methods to identify affected cells to enable examination of their molecular, cellular and physiological characteristics. Here, we report that both primary and secondary damage to cells in mouse models of spinal cord and peripheral nerve injury can be detected in vivo using a novel fluorescent reporter system based on the immediate stress response via activation of Heat Shock Factor 1. We also provide evidence for altered electrophysiological properties of reporter-positive secondarily-injured neurons. The comprehensive identification of injured, but surviving cells located both close and at distant locations from the injury site in vivo will provide a way to study their pathophysiology and possibly prevention of their further deterioration.
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Key Words
- Cellular damage
- DRG, dorsal root ganglion
- FG, Fluoro-Gold
- HRP, horseradish peroxidase
- HSE, heat shock-response element
- HSF1, heat shock factor 1
- HSP, heat shock protein
- Heat shock signaling
- IL-6, interleukin 6
- M1, primary motor cortex
- M2, secondary motor cortex
- MPtA, medial parietal association cortex
- PBS, phosphate buffered saline
- PCR, polymerase chain reaction
- RFP, red fluorescent protein
- Reporter mouse
- SCI, spinal cord injury
- SNI, sciatic nerve injury
- Sciatic nerve injury
- Spinal cord injury
- WDR, wide-dynamic range
- WGA, wheat germ agglutinin
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Affiliation(s)
- Kazue Hashimoto-Torii
- Center for Neuroscience Research, Children’s Research Institute, Children’s National Medical Center, Washington, DC 20010, USA
- Department of Pediatrics, School of Medicine and Health Sciences, The George Washington University, Washington, DC 20052, USA
- Department of Neurobiology and Kavli Institute for Neuroscience, School of Medicine, Yale University, New Haven, CT 06510, USA
| | - Masanori Sasaki
- Department of Neurology, Yale University School of Medicine, New Haven, Connecticut, 06510, USA
- Center for Neuroscience and Regeneration Research, VA Connecticut Healthcare System, West Haven, Connecticut, 06516, USA
- Department of Neural Regenerative Medicine, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Hokkaido, 060-8556, Japan
| | - Yu-Wen Chang
- Department of Neurology, Yale University School of Medicine, New Haven, Connecticut, 06510, USA
- Center for Neuroscience and Regeneration Research, VA Connecticut Healthcare System, West Haven, Connecticut, 06516, USA
| | - Hye Hwang
- Center for Neuroscience Research, Children’s Research Institute, Children’s National Medical Center, Washington, DC 20010, USA
- Institute of Biomedical Sciences, School of Medicine and Health Sciences, The George Washington University, Washington, DC 20052, USA
| | - Stephen G. Waxman
- Department of Neurology, Yale University School of Medicine, New Haven, Connecticut, 06510, USA
- Center for Neuroscience and Regeneration Research, VA Connecticut Healthcare System, West Haven, Connecticut, 06516, USA
| | - Jeffery D. Kocsis
- Department of Neurology, Yale University School of Medicine, New Haven, Connecticut, 06510, USA
- Center for Neuroscience and Regeneration Research, VA Connecticut Healthcare System, West Haven, Connecticut, 06516, USA
| | - Pasko Rakic
- Department of Neurobiology and Kavli Institute for Neuroscience, School of Medicine, Yale University, New Haven, CT 06510, USA
| | - Masaaki Torii
- Center for Neuroscience Research, Children’s Research Institute, Children’s National Medical Center, Washington, DC 20010, USA
- Department of Pediatrics, School of Medicine and Health Sciences, The George Washington University, Washington, DC 20052, USA
- Department of Neurobiology and Kavli Institute for Neuroscience, School of Medicine, Yale University, New Haven, CT 06510, USA
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24
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Abstract
Cancer and ageing can be regarded as two different manifestations of the same underlying process-accumulation of cellular damage-and therefore both are closely linked. Nowadays, the ageing of populations worldwide is leading to an unprecedented increase in cancer cases and fatalities, and therefore the understanding of links between cancer and ageing is more important than ever. Spalax is considered an excellent model for ageing and, additionally, for cancer research, due to not show clear age-related phenotypic changes and not develop spontaneous tumours, despite its relatively long lifespan (∼20 years in captivity). Thereby, the purpose of this review is to summarize the recent knowledge on Spalax, with a particular emphasis on the molecular mechanisms associated with their longevity and cancer resistance.
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Affiliation(s)
- Francisco Alejandro Lagunas-Rangel
- Department of Genetics and Molecular Biology, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV), Av. Instituto Politécnico Nacional No. 2508, San Pedro Zacatenco, Gustavo A. Madero, 07360, Mexico City, Mexico.
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25
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Coppola F, Almeida Â, Henriques B, Soares AMVM, Figueira E, Pereira E, Freitas R. Biochemical impacts of Hg in Mytilus galloprovincialis under present and predicted warming scenarios. Sci Total Environ 2017; 601-602:1129-1138. [PMID: 28599369 DOI: 10.1016/j.scitotenv.2017.05.201] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 05/21/2017] [Accepted: 05/22/2017] [Indexed: 06/07/2023]
Abstract
The interest in the consequences of climate change on the physiological and biochemical functioning of marine organisms is increasing, but the indirect and interactive effects resulting from warming on bioconcentration and responsiveness to pollutants are still poorly explored, particularly in terms of cellular responses. The present study investigated the impacts of Hg in Mytilus galloprovincialis under control (17°C) and warming (21°C) conditions, assessing mussels Hg bioconcentration capacity, metabolic and oxidative status after 14 and 28days of exposure. Results obtained showed greater impacts in mussels exposed for 28days in comparison to 14days of exposure. Furthermore, our findings revealed that the increase in temperature from 17 to 21°C reduced the bioconcentration of Hg by M. galloprovincialis, which may explain higher mortality rates at 17°C in comparison to 21°C. Lower Hg concentration at 21°C in mussels tissue may result from valves closure for longer periods, identified by reduced energy reserves consumption at higher temperature, which in turn might also contributed to higher oxidative stress in organisms exposed to this condition. The highest LPO levels observed in mussels exposed to higher temperatures alone indicate that warming conditions will greatly affect M. galloprovincialis. Furthermore, the present study showed that the impacts induced by the combination of Hg and warming were similar to the ones caused by increased temperature acting alone, mainly due to increased antioxidant defenses in organisms under combined effects of Hg and warming, suggesting that warming was the factor that mostly contributed to oxidative stress in mussels. Although higher mortality was observed in individuals exposed to 17°C and Hg compared to organisms exposed to Hg at 21°C, the oxidative stress induced at higher temperature may generate negative consequences on mussels reproductive and feeding capacity, growth and, consequently, on population maintenance and dynamics.
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Affiliation(s)
- Francesca Coppola
- Biology Department & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Ângela Almeida
- Biology Department & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Bruno Henriques
- Chemistry Department & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal; CIIMAR, Interdisciplinary Centre of Marine and Environmental Research , Rua dos Bragas 289, 4050-123 Porto, Portugal
| | | | - Etelvina Figueira
- Biology Department & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Eduarda Pereira
- Chemistry Department & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Rosa Freitas
- Biology Department & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal.
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26
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Seke M, Markelic M, Morina A, Jovic D, Korac A, Milicic D, Djordjevic A. Synergistic mitotoxicity of chloromethanes and fullerene C 60 nanoaggregates in Daphnia magna midgut epithelial cells. Protoplasma 2017; 254:1607-1616. [PMID: 27913906 DOI: 10.1007/s00709-016-1049-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Accepted: 11/16/2016] [Indexed: 06/06/2023]
Abstract
Adsorption of non-polar compounds by suspended fullerene nanoaggregates (nC60) may enhance their toxicity and affect the fate, transformation, and transport of non-polar compounds in the environment. The potential of stable fullerene nanoaggregates as contaminant carriers in aqueous systems and the influence of chloromethanes (trichloromethane and dichloromethane) were studied on the midgut epithelial cells of Daphnia magna by light and electron microscopy. The size and shape of fullerene nanoaggregates were observed and measured using dynamic light scattering, transmission electron microscopy, and low vacuum scanning electron microscopy. The nC60 in suspension appeared as a bulk of aggregates of irregular shape with a surface consisting of small clumps 20-30 nm in diameter. The presence of nC60 aggregates was confirmed in midgut lumen and epithelial cells of D. magna. After in vivo acute exposure to chloromethane, light and electron microscopy revealed an extensive cytoplasmic vacuolization with disruption and loss of specific structures of D. magna midgut epithelium (mitochondria, endoplasmic reticulum, microvilli, peritrophic membrane) and increased appearance of necrotic cells. The degree of observed changes depended on the type of treatment: trichloromethane (TCM) induced the most notable changes, whereas fullerene nanoaggregates alone had no negative effects. Transmission electron microscopy also indicated increased lysosomal degradation and severe peroxidative damages of enterocyte mitochondria following combined exposure to chloromethane and fullerene nanoaggregates. In conclusion, the adsorption of chloromethane by fullerene nanoaggregates enhances their toxicity and induces peroxidative mitochondrial damage in midgut enterocytes.
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Affiliation(s)
- Mariana Seke
- University of Belgrade, Institute of Nuclear Sciences "Vinca", Laboratory for Radiobiology and Molecular Genetics, Belgrade, Republic of Serbia
| | - Milica Markelic
- University of Belgrade, Faculty of Biology, Centre for Electron Microscopy, Belgrade, Republic of Serbia
| | - Arian Morina
- University of Belgrade, Faculty of Biology, Belgrade, Republic of Serbia
| | - Danica Jovic
- University of Novi Sad, Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, Novi Sad, Republic of Serbia
| | - Aleksandra Korac
- University of Belgrade, Faculty of Biology, Centre for Electron Microscopy, Belgrade, Republic of Serbia
| | - Dragana Milicic
- University of Belgrade, Faculty of Biology, Belgrade, Republic of Serbia.
| | - Aleksandar Djordjevic
- University of Novi Sad, Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, Novi Sad, Republic of Serbia
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27
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Perin G, Fávero JF, Severo DRT, Silva AD, Machado G, Araújo HL, Lilenbaum W, Morsch VM, Schetinger MRC, Jordão RS, Stefani LM, Bottari NB, Da Silva AS. Occurrence of oxidative stress in dairy cows seropositives for Brucella abortus. Microb Pathog 2017; 110:196-201. [PMID: 28669636 DOI: 10.1016/j.micpath.2017.06.043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 06/21/2017] [Accepted: 06/28/2017] [Indexed: 12/19/2022]
Abstract
Bovine brucellosis is an important zoonotic disease caused by the bacterium Brucella abortus that leads to economic losses due to animal discard and commercial restrictions. Since positive animals for brucellosis are culled, little is known about the pathogenesis of this disease. Therefore, the aims of this study were to evaluate possible changes in the activity of deaminase adenosine (ADA) and the oxidative stress in cows seropositives for brucellosis (Experiment I), and to evaluate the seroprevalence of B. abortus in dairy cows from the Western state of Santa Catarina, Southern Brazil (Experiment II). The Experiment I evaluated 20 pregnant cows: ten seropositives for B. abortus and ten seronegatives that were used as controls. The ADA activity and markers of oxidative stress (TBARS, catalase (CAT) and superoxide dismutase (SOD)) were evaluated in these animals. A reduction in the activity of ADA and catalase enzymes in seropositive animals was observed (p < 0.001). Conversely, there was an increase in TBARS levels and superoxide dismutase activity in cows infected by B. abortus (p < 0.001). The presence of oxidative stress and a reduction of ADA might be related to the modulation of the inflammatory response. The experiment II was performed due to a high number of herds with restrictions imposed by cases of brucellosis in the state of Santa Catarina in the last two years, and thus, the seroprevalence for B. abortus was evaluated in 1242 serum samples of cows of 69 herds. The serodiagnosis was performed using two tests: buffered acidified antigen and 2-mercaptoethanol. However, none of the serum samples were positive for B. abortus. Although we did not find seropositive animals for brucellosis in our study, the disease still requires continued surveillance, due to its economic impact, and to the oxidative stress caused by it, which may have contributed to cases of abortion in three seropositive cows (Experiment I) in the final third of the gestation.
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Affiliation(s)
- Géssica Perin
- Graduate Program of Animal Science, Universidade do Estado de Santa Catarina (UDESC), Chapecó, SC, Brazil
| | - Juscivete F Fávero
- Graduate Program of Animal Science, Universidade do Estado de Santa Catarina (UDESC), Chapecó, SC, Brazil
| | - Diego R T Severo
- Companhia Integrada de Desenvolvimento Agropecuário de Santa Catarina (CIDASC), Xanxerê, SC, Brazil
| | - Anielen D Silva
- Graduate Program in Toxicological Biochemical, Department of Biochemistry and Molecular Biology, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Gustavo Machado
- Department of Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota, USA
| | - Hugo L Araújo
- Laboratory of Veterinary Bacteriology, Universidade Federal Fluminense (UFF), Niterói, RJ, Brazil
| | - Walter Lilenbaum
- Laboratory of Veterinary Bacteriology, Universidade Federal Fluminense (UFF), Niterói, RJ, Brazil
| | - Vera M Morsch
- Graduate Program in Toxicological Biochemical, Department of Biochemistry and Molecular Biology, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Maria Rosa C Schetinger
- Graduate Program in Toxicological Biochemical, Department of Biochemistry and Molecular Biology, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Ricardo S Jordão
- Instituto Biologico, Secretaria da Agricultura e Abastecimento, São Paulo, SP, Brazil
| | - Lenita M Stefani
- Graduate Program of Animal Science, Universidade do Estado de Santa Catarina (UDESC), Chapecó, SC, Brazil
| | - Nathieli B Bottari
- Graduate Program in Toxicological Biochemical, Department of Biochemistry and Molecular Biology, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Aleksandro S Da Silva
- Graduate Program of Animal Science, Universidade do Estado de Santa Catarina (UDESC), Chapecó, SC, Brazil; Graduate Program in Toxicological Biochemical, Department of Biochemistry and Molecular Biology, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil.
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Chowra U, Yanase E, Koyama H, Panda SK. Aluminium-induced excessive ROS causes cellular damage and metabolic shifts in black gram Vigna mungo (L.) Hepper. Protoplasma 2017; 254:293-302. [PMID: 26769708 DOI: 10.1007/s00709-016-0943-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Accepted: 01/06/2016] [Indexed: 05/08/2023]
Abstract
Aluminium-induced oxidative damage caused by excessive ROS production was evaluated in black gram pulse crop. Black gram plants were treated with different aluminium (Al3+) concentrations (10, 50 and 100 μM with pH 4.7) and further the effects of Al3+ were characterised by means of root growth inhibition, histochemical assay, ROS content analysis, protein carbonylation quantification and 1H-NMR analysis. The results showed that aluminium induces excessive ROS production which leads to cellular damage, root injury, stunt root growth and other metabolic shifts. In black gram, Al3+ induces cellular damage at the earliest stage of stress which was characterised from histochemical analysis. From this study, it was observed that prolonged stress can activate certain aluminium detoxification defence mechanism. Probably excessive ROS triggers such defence mechanism in black gram. Al3+ can induce excessive ROS initially in the root region then transported to other parts of the plant. As much as the Al3+ concentration increases, the rate of cellular injury and ROS production also increases. But after 72 h of stress, plants showed a lowered ROS level and cellular damage which indicates the upregulation of defensive mechanisms. Metabolic shift analysis also showed that the black gram plant under stress has less metabolic content after 24 h of treatment, but gradually, it was increased after 72 h of treatment. It was assumed that ROS played the most important role as a signalling molecule for aluminium stress in black gram.
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Affiliation(s)
- Umakanta Chowra
- Plant Molecular Biotechnology Laboratory, Department of Life Science and Bioinformatics, Assam University, Silchar, 788011, India.
| | - Emiko Yanase
- United Graduate School of Agricultural Science, Faculty of Applied Biological Science, Gifu University, Gifu, Japan
| | - Hiroyuki Koyama
- United Graduate School of Agricultural Science, Faculty of Applied Biological Science, Gifu University, Gifu, Japan
| | - Sanjib Kumar Panda
- Plant Molecular Biotechnology Laboratory, Department of Life Science and Bioinformatics, Assam University, Silchar, 788011, India
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Siddiqui MH, Alamri SA, Al-Khaishany MYY, Al-Qutami MA, Ali HM, Al-Whaibi MH, Al-Wahibi MS, Alharby HF. Mitigation of adverse effects of heat stress on Vicia faba by exogenous application of magnesium. Saudi J Biol Sci 2016; 25:1393-1401. [PMID: 30505187 PMCID: PMC6251988 DOI: 10.1016/j.sjbs.2016.09.022] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 08/30/2016] [Accepted: 09/25/2016] [Indexed: 01/24/2023] Open
Abstract
The effects of magnesium (Mg) supplementation on the growth performance, oxidative damage, DNA damage, and photosynthetic pigment synthesis, as well as on the activity level of carbonic anhydrase (CA), ribulose-1,5-bisphosphate carboxylase (Rubisco), and antioxidant enzymes were studied in Vicia faba L. plants exposed to heat stress (HS) and non-heat-stress (non-HS) conditions. Seeds were grown in pots containing a 1:1 mixture of sand and peat, with Mg treatments. The treatments consisted of (i) 0 Mg and non-HS (ambient temperature; control); (ii) 50 mM Mg; (iii) HS (38 °C); and (iv) 50 mM Mg and HS (38 °C). HS was imposed by placing potted plants in an incubator at 38 °C for 48 h. Growth attributes, total chlorophyll (Total Chl), and CA, and Rubisco activity decreased in plants subjected to HS, whereas accumulation of organic solutes [proline (Pro) and glycine betaine (GB)]; superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) activity; DNA damage; electrolyte leakage (EL); and malondialdehyde (MDA) and hydrogen peroxide (H2O2) content all increased. Application of Mg, however, significantly enhanced further proline (Pro), glycinebetaine (GB), SOD, POD, and CAT activity, and decreased DNA damage, EL, and MDA and H2O2 concentrations. These results suggest that adequate supply of Mg is not only essential for plant growth and development, but also improves plant tolerance to HS by suppressing cellular damage induced by reactive oxygen species through the enhancement of the accumulation of Pro and GB, and the actions of antioxidant enzymes.
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Affiliation(s)
- Manzer H Siddiqui
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 2455, Saudi Arabia
| | - Saud A Alamri
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 2455, Saudi Arabia
| | - Mutahhar Y Y Al-Khaishany
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 2455, Saudi Arabia
| | - Mohammed A Al-Qutami
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 2455, Saudi Arabia
| | - Hayssam M Ali
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 2455, Saudi Arabia
| | - Mohamed H Al-Whaibi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 2455, Saudi Arabia
| | - Mona S Al-Wahibi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 2455, Saudi Arabia
| | - Hesham F Alharby
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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Klanjscek T, Muller EB, Nisbet RM. Feedbacks and tipping points in organismal response to oxidative stress. J Theor Biol 2016; 404:361-374. [PMID: 27245109 DOI: 10.1016/j.jtbi.2016.05.034] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 05/23/2016] [Accepted: 05/25/2016] [Indexed: 01/01/2023]
Abstract
Biological feedbacks play a crucial role in determining effects of toxicants, radiation, and other environmental stressors on organisms. Focusing on reactive oxygen species (ROS) that are increasingly recognized as a crucial mediator of many stressor effects, we investigate how feedback strength affects the ability of organisms to control negative effects of exposure. We do this by developing a general theoretical framework for describing effects of a wide range of stressors and species. The framework accounts for positive and negative feedbacks representing cellular processes: (i) production of ROS due to metabolism and the stressor, (ii) ROS reactions with cellular compounds that cause damage, and (iii) cellular control of both ROS and damage. We suggest functional forms that capture generic properties of cellular control mechanisms constituting the feedbacks, assess stability of equilibrium states in the resulting models, and investigate tipping points at which cellular control breaks down causing unregulated increase of ROS and damage. Depending on the chosen functional forms, the models can have zero, one, or two positive steady states; except in one singular case, the steady state with lowest values of ROS and damage is locally stable. We found two types of tipping points: those induced by changes in the parameters (including the stressor intensity), and those induced by the history of exposure, i.e. ROS and damage levels. The relatively simple models effectively describe several patterns of cellular responses to stress, such as the covariation of ROS and damage, the break-down of cellular control leading to explosion of ROS and/or damage, increase in damage even when ROS is (near)-constant, and the effects of exposure history on the ability of the cell to handle additional stress. The models quantify dynamics of cellular control, and could therefore be used to estimate the metabolic costs of stress and help integrate them into models that use energetic considerations to model organism's response to the environment. Although developed with unicellular organisms in mind, our models can be applied to all multicellular organisms that utilize similar feedbacks when dealing with stress.
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Affiliation(s)
- Tin Klanjscek
- University of California Santa Barbara, Santa Barbara, CA, USA; Ruder Boskovic Institute, Zagreb, Croatia.
| | - Erik B Muller
- University of California Santa Barbara, Santa Barbara, CA, USA
| | - Roger M Nisbet
- University of California Santa Barbara, Santa Barbara, CA, USA
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Mathur MB, Epel E, Kind S, Desai M, Parks CG, Sandler DP, Khazeni N. Perceived stress and telomere length: A systematic review, meta-analysis, and methodologic considerations for advancing the field. Brain Behav Immun 2016; 54:158-169. [PMID: 26853993 PMCID: PMC5590630 DOI: 10.1016/j.bbi.2016.02.002] [Citation(s) in RCA: 169] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2015] [Revised: 01/23/2016] [Accepted: 02/03/2016] [Indexed: 02/06/2023] Open
Abstract
IMPORTANCE Psychological stress contributes to numerous diseases and may do so in part through damage to telomeres, protective non-coding segments on the ends of chromosomes. OBJECTIVE We conducted a systematic review and meta-analysis to determine the association between self-reported, perceived psychological stress (PS) and telomere length (TL). DATA SOURCES We searched 3 databases (PubMed, PsycInfo, and Scopus), completed manual searches of published and unpublished studies, and contacted all study authors to obtain potentially relevant data. STUDY SELECTION Two independent reviewers assessed studies for original research measuring (but not necessarily reporting the correlation between) PS and TL in human subjects. 23 studies met inclusion criteria; 22 (totaling 8948 subjects) could be meta-analyzed. DATA EXTRACTION AND SYNTHESIS We assessed study quality using modified MINORS criteria. Since not all included studies reported PS-TL correlations, we obtained them via direct calculation from author-provided data (7 studies), contact with authors (14 studies), or extraction from the published article (1 study). MAIN OUTCOMES AND MEASURES We conducted random-effects meta-analysis on our primary outcome, the age-adjusted PS-TL correlation. We investigated potential confounders and moderators (sex, life stress exposure, and PS measure validation) via post hoc subset analyses and meta-regression. RESULTS Increased PS was associated with a very small decrease in TL (n=8724 total; r=-0.06; 95% CI: -0.10, -0.008; p=0.01; α=0.025), adjusting for age. This relationship was similar between sexes and within studies using validated measures of PS, and marginally (nonsignificantly) stronger among samples recruited for stress exposure (r=-0.13; vs. general samples: b=-0.11; 95% CI: -0.27, 0.01; p=0.05; α=0.013). Publication bias may exist; correcting for its effects attenuated the relationship. CONCLUSIONS AND RELEVANCE Our analysis finds a very small, statistically significant relationship between increased PS (as measured over the past month) and decreased TL that may reflect publication bias, although fully parsing the effects of publication bias from other sample-size correlates is challenging, as discussed. The association may be stronger with known major stressors and is similar in magnitude to that noted between obesity and TL. All included studies used single measures of short-term stress; the literature suggests long-term chronic stress may have a larger cumulative effect. Future research should assess for potential confounders and use longitudinal, multidimensional models of stress.
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Affiliation(s)
- Maya B. Mathur
- Quantitative Sciences Unit, Stanford University, Palo Alto, CA, USA,To whom correspondence should be addressed: Maya B. Mathur, Quantitative Sciences Unit, c/o Inna Sayfer, Stanford University, 1070 Arastradero Rd., Palo Alto, CA, 94305, t: 650-863-2384;
| | - Elissa Epel
- Department of Psychiatry, University of California, San Francisco, CA, USA
| | - Shelley Kind
- Department of Psychological and Brain Sciences, Boston University, Boston, MA, USA
| | - Manisha Desai
- Quantitative Sciences Unit, Stanford University, Palo Alto, CA, USA
| | - Christine G. Parks
- Epidemiology Branch, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC, USA
| | - Dale P. Sandler
- Epidemiology Branch, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC, USA
| | - Nayer Khazeni
- Division of Pulmonary and Critical Care Medicine, Stanford University, Stanford, CA, USA,Center for Health Policy and Center for Primary Care and Outcomes Research, Stanford University, Stanford, CA
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Penttilä AK, Rouhiainen A, Kylänpää L, Mustonen H, Puolakkainen P, Rauvala H, Repo H. Circulating nucleosomes as predictive markers of severe acute pancreatitis. J Intensive Care 2016; 4:14. [PMID: 26893906 PMCID: PMC4758106 DOI: 10.1186/s40560-016-0135-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2015] [Accepted: 02/03/2016] [Indexed: 01/26/2023] Open
Abstract
Background The components of nucleosomes, which contain DNA and histones, are released into the circulation from damaged cells and can promote inflammation. We studied whether the on-admission levels of circulating nucleosomes predict the development of severe acute pancreatitis (AP), in particular among the patients who present without clinical signs of organ dysfunction. Methods This is a prospective study of 74 AP patients admitted to Helsinki University Hospital from 2003 to 2007. Twenty-three patients had mild, 27 moderately severe, and 24 severe AP as defined by the revised Atlanta criteria. 14/24 severe AP patients had no sign of organ dysfunction on admission (modified marshall score <2). Blood samples were obtained on admission and the plasma levels of nucleosomes were measured using enzyme-linked immunosorbent assay. Results The on-admission levels of nucleosomes were significantly higher in severe AP than in mild or moderately severe AP (p < 0.001 for all), higher in non-survivors (n = 8) than in survivors (p = 0.019), and correlated with the on-admission levels of C-reactive protein (p < 0.001) and creatinine (p < 0.001). Among the AP patients who presented without organ dysfunction, the on-admission nucleosome level was an independent predictor of severe AP (p = 0.038, gender-adjusted forward-stepping logistic regression). Conclusions Circulating nucleosome levels may be helpful in identifying, on admission to hospital, the AP patients who present without clinical signs of organ dysfunction, and, yet, are bound to develop organ dysfunction during hospitalization.
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Affiliation(s)
- Anne K Penttilä
- Department of Surgery, Helsinki University Hospital, P.O. Box 340, 00029 HUS Helsinki, Finland
| | - Ari Rouhiainen
- Neuroscience Center, University of Helsinki, P.O. Box 56, 00014 Helsinki, Finland.,Department of Biosciences, University of Helsinki, P.O. Box 65, 00014 Helsinki, Finland
| | - Leena Kylänpää
- Department of Surgery, Helsinki University Hospital, P.O. Box 340, 00029 HUS Helsinki, Finland
| | - Harri Mustonen
- Department of Surgery, Helsinki University Hospital, P.O. Box 340, 00029 HUS Helsinki, Finland
| | - Pauli Puolakkainen
- Department of Surgery, Helsinki University Hospital, P.O. Box 340, 00029 HUS Helsinki, Finland.,Institute of Clinical Medicine, University of Helsinki, P.O. Box 340, 00029 HUS Helsinki, Finland
| | - Heikki Rauvala
- Neuroscience Center, University of Helsinki, P.O. Box 56, 00014 Helsinki, Finland
| | - Heikki Repo
- Department of Bacteriology and Immunology, University of Helsinki, The Haartman Institute, P.O. Box 21, 00014 Helsinki, Finland
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Miyayama T, Matsuoka M. Involvement of lysosomal dysfunction in silver nanoparticle-induced cellular damage in A549 human lung alveolar epithelial cells. J Occup Med Toxicol 2016; 11:1. [PMID: 26759602 PMCID: PMC4709927 DOI: 10.1186/s12995-016-0090-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 01/06/2016] [Indexed: 11/18/2022] Open
Abstract
Background While silver nanoparticles (AgNPs) are widely used in consumer and medical products, the mechanism by which AgNPs cause pulmonary cytotoxicity is not clear. AgNP agglomerates are found in endo-lysosomal structures within the cytoplasm of treated cells. In this study, the functional role of lysosomes in AgNP-induced cellular damage was examined in A549 human lung alveolar epithelial cells. We evaluated the intracellular distribution of AgNPs, lysosomal pH, cellular viability, Ag dissolution, and metallothionein (MT) mRNA levels in AgNP-exposed A549 cells that were treated with bafilomycin A1, the lysosomal acidification inhibitor. Findings Exposure of A549 cells to citrate-coated AgNPs (20 nm diameter) for 24 h induced cellular damage and cell death at 100 and 200 μg Ag/ml, respectively. Confocal laser microscopic examination of LysoTracker-stained cells showed that AgNPs colocalized with lysosomes and their agglomeration increased in a dose-dependent manner (50–200 μg Ag/ml). In addition, the fluorescence signals of LysoTracker were reduced following exposure to AgNPs, suggesting the elevation of lysosomal pH. Treatment of A549 cells with 200 nM bafilomycin A1 and AgNPs (50 μg Ag/ml) further reduced the fluorescence signals of LysoTracker. AgNP-induced cell death was also increased by bafilomycin A1 treatment. Finally, treatment with bafilomycin A1 suppressed the dissolution of Ag and decreased the mRNA expression levels of MT-I and MT-II following exposure to AgNPs. Conclusions The perturbation of lysosomal pH by AgNP exposure may play a role in AgNP agglomeration and subsequent cellular damage in A549 cells.
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Affiliation(s)
- Takamitsu Miyayama
- Department of Hygiene and Public Health I, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo 162-8666 Japan
| | - Masato Matsuoka
- Department of Hygiene and Public Health I, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo 162-8666 Japan
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Honorato Júnior J, Zambolim L, Aucique-Pérez CE, Resende RS, Rodrigues FA. Photosynthetic and antioxidative alterations in coffee leaves caused by epoxiconazole and pyraclostrobin sprays and Hemileia vastatrix infection. Pestic Biochem Physiol 2015; 123:31-39. [PMID: 26267050 DOI: 10.1016/j.pestbp.2015.01.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Revised: 01/27/2015] [Accepted: 01/28/2015] [Indexed: 06/04/2023]
Abstract
Coffee leaf rust (CLR), caused by Hemileia vastatrix, is a major disease affecting coffee production worldwide. In this study, an in-depth analysis of the photosynthetic performance of coffee leaves challenged or not with H. vastatrix and sprayed with either epoxiconazole (EPO) or pyraclostrobin (PYR) was performed by combining chlorophyll a fluorescence images, photosynthetic pigment pools and the activities of chitinase (CHI), β-1,3-glucanase (GLU), peroxidase (POX) and catalase (CAT). The CLR severity was higher in the control plants, but reduced in plants sprayed with both PYR and EPO. Also, the CLR severity was reduced in plants sprayed with PYR compared with plants sprayed with EPO. Plants sprayed with either EPO or PYR showed maximal photosystem II quantum efficiency (Fv/Fm) values ranging from 0.78 to 0.80, which were quite similar to those obtained with inoculated plants (values ranging from 0.74 to 0.77). The decreases in the Fv/Fm ratio values and parallel increases in the F0 values in the inoculated plants, which were not observed in the control plants (sprayed with water) and were confirmed by images of the initial fluorescence (F0) and Fv/Fm parameters in the regions of the leaf tissue containing pustules and in the asymptomatic leaf tissue, indicated that photosynthesis was negatively impacted. When effective photosystem II quantum yield (Y(II)) values approached zero with a high photosynthetic photon flux density, high values of quantum yield of regulated energy dissipation (Y(NPQ)) in association with a high carotenoid concentration were noted in the inoculated plants sprayed either with PYR or EPO. The increased CLR severity in inoculated plants in contrast to inoculated plants sprayed with either PYR or EPO was associated with greater POX activity and a reduced photosynthetic pigment concentration. POX and CAT activities were increased in inoculated plants sprayed with either EPO or PYR when compared with control plants. CHI and GLU activities were maintained at high levels in the leaves of inoculated plants, regardless of the fungicide sprayed, indicating that CHI and GLU are less important for coffee resistance against CLR. The results of the present study clearly demonstrated that plants sprayed with either EPO or PYR showed milder CLR symptoms with adequate photosynthetic performance and optimal conditioning of their antioxidant systems.
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Affiliation(s)
- J Honorato Júnior
- Departamento de Fitopatologia, Universidade Federal de Viçosa, Viçosa, Minas Gerais State 36570-900, Brazil
| | - L Zambolim
- Departamento de Fitopatologia, Universidade Federal de Viçosa, Viçosa, Minas Gerais State 36570-900, Brazil.
| | - C E Aucique-Pérez
- Departamento de Fitopatologia, Universidade Federal de Viçosa, Viçosa, Minas Gerais State 36570-900, Brazil
| | - R S Resende
- Departamento de Fitopatologia, Universidade Federal de Viçosa, Viçosa, Minas Gerais State 36570-900, Brazil
| | - F A Rodrigues
- Departamento de Fitopatologia, Universidade Federal de Viçosa, Viçosa, Minas Gerais State 36570-900, Brazil.
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Joya X, Salat-Batlle J, Velezmoro-Jáuregui G, Clavé S, Garcia-Algar O, Vall O. Prenatal ethanol exposure and placental hCG and IGF2 expression. Placenta 2015; 36:854-62. [PMID: 26031386 DOI: 10.1016/j.placenta.2015.05.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 04/16/2015] [Accepted: 05/11/2015] [Indexed: 11/20/2022]
Abstract
INTRODUCTION Fetal alcohol spectrum disorder (FASD) is the main cause of preventable non-genetic mental retardation. Diagnosis of prenatal exposure to ethanol (PEE) is based on questionnaires and biomarkers in perinatal matrices. Early diagnosis of FASD is important to mitigate secondary disabilities that will arise later in life. It is important to identify biomarkers related to cellular damage caused by PEE. The main objective was to identify novel candidate biomarkers from placental tissue using an in vitro model of exposure to ethanol and to support it in placental tissue obtained from pregnancies with PEE assessed by fatty acid esters in meconium samples. METHODS First, hormone production was examined using two different human trophoblast cell lines, JEG3 and BeWo. Viable cell count by exclusion method was analyzed and human chorionic gonadotrophin (hCG) and insulin-like growth factor 2 (IGF2) were quantified by Western blot and ELISA. Second, these techniques were used in protein lysates from human placentas from pregnancies with and without exposure to ethanol. RESULTS Both trophoblast cell lines showed a decrease in cell viability accompanied with apoptosis activation after a chronic ethanol treatment. Moreover, we showed an increase in the secretion of hCG and IGF2 in a dose-dependent manner. Interestingly, this increase was also observed in a set of human placenta tissue from fetuses exposed prenatally to ethanol. DISCUSSION Ethanol exposure during pregnancy causes placenta cell damage, so altering its normal function. The specific hCG and IGF2 release pattern is a candidate surrogated biomarker of the damage due to PEE.
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