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Ayed-Boussema I, Rjiba K, M'nassri A, Hamdi H, Abid S. Subchronic exposure to fenpyroximate causes multiorgan toxicity in Wistar rats by disrupting lipid profile, inducing oxidative stress and DNA damage. Biomarkers 2024; 29:68-77. [PMID: 38299991 DOI: 10.1080/1354750x.2024.2313663] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 01/29/2024] [Indexed: 02/02/2024]
Abstract
BACKGROUND Fenpyroximate (FEN) is an acaricide that inhibits the complex I of the mitochondrial respiratory chain in mites. Data concerning mammalian toxicity of this acaricide are limited; thus the aim of this work was to explore FEN toxicity on Wistar rats, particularly on cardiac, pulmonary, and splenic tissues and in bone marrow cells. METHODS rats were treated orally with FEN at 1, 2, 4, and 8 mg/Kg bw for 28 days. After treatment, we analyzed lipid profile, oxidative stress and DNA damage in rat tissues. RESULTS FEN exposure increased creatinine phosphokinase (CPK) and lactate dehydrogenase (LDH) activities, elevated total cholesterol (T-CHOL), triglycerides (TG), and low-density lipoprotein cholesterol (LDL-C) concentrations, while decreasing high-density lipoprotein cholesterol (HDL-C). It inhibited acetylcholinesterase (AChE) activity, enhanced lipid peroxidation, protein oxidation, and modulated antioxidant enzymes activities (superoxide dismutase, catalase, glutathione peroxidase, and glutathione S-transferase). Comet assay indicated that FEN induced a dose-dependent DNA damage, contrasting with the micronucleus test showing no micronuclei formation. Nonetheless, FEN exhibited cytotoxicity to bone marrow cells, as evidenced by a reduction in the number of immature erythrocytes among total cells. CONCLUSION FEN appears to carry out its genotoxic and cytotoxic activities most likely through an indirect pathway that involves oxidative stress.
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Affiliation(s)
- Imen Ayed-Boussema
- Laboratory of Research on Biologically Compatible Compounds, LR01SE17, University of Monastir, Faculty of Dental Medicine, Monastir, Tunisia
- Faculty of Science of Gafsa, University of Gafsa, Gafsa, Tunisia
| | - Karima Rjiba
- Laboratory of Research on Biologically Compatible Compounds, LR01SE17, University of Monastir, Faculty of Dental Medicine, Monastir, Tunisia
- Faculty of Science of Gafsa, University of Gafsa, Gafsa, Tunisia
| | - Asma M'nassri
- Laboratory of Research on Biologically Compatible Compounds, LR01SE17, University of Monastir, Faculty of Dental Medicine, Monastir, Tunisia
- Faculty of Science of Gafsa, University of Gafsa, Gafsa, Tunisia
| | - Hiba Hamdi
- Laboratory of Research on Biologically Compatible Compounds, LR01SE17, University of Monastir, Faculty of Dental Medicine, Monastir, Tunisia
| | - Salwa Abid
- Laboratory of Research on Biologically Compatible Compounds, LR01SE17, University of Monastir, Faculty of Dental Medicine, Monastir, Tunisia
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Ayed-Boussema I, Rjiba-Touati K, Hamdi H, Chaabani H, Abid-Essefi S. Oxidative stress-mediated mitochondrial apoptosis induced by the acaricide, fenpyroximate, on cultured human colon cancer HCT 116 cells. Toxicol In Vitro 2023; 89:105587. [PMID: 36933581 DOI: 10.1016/j.tiv.2023.105587] [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: 01/16/2023] [Revised: 03/02/2023] [Accepted: 03/15/2023] [Indexed: 03/18/2023]
Abstract
Fenpyroximate (FEN) is an acaricide that inhibits mitochondrial electron transport at the NADH-coenzyme Q oxidoreductase (complex I). The present study was designed to investigate the molecular mechanisms underling FEN toxicity on cultured human colon carcinoma cells (HCT116). Our data showed that FEN induced HCT116 cell mortality in a concentration dependent manner. FEN arrested cell cycle in G0/G1 phase and increased DNA damage as assessed by comet assay. Induction of apoptosis was confirmed in HCT116 cells exposed to FEN by AO-EB staining and Annexin V-FITC/PI double staining assay. Moreover, FEN induced a loss in mitochondrial membrane potential (MMP), increased p53 and Bax mRNA expression and decreased bcl2 mRNA level. An increase in caspase 9 and caspase 3 activities was also detected. All toghether, these data suggest that FEN induce apoptosis in HCT116 cells via mitochondrial pathway. To check the implication of oxidative stress in FEN-induced cell toxicity, we examined the oxidative stress statue in HCT116 cells exposed to FEN and we tested the effect of a powerful antioxidant, N-acetylcystein (NAC), on FEN-caused toxicity. It was observed that FEN enhanced ROS generation and MDA levels and disturbed SOD and CAT activities. Besides, cell treatment with NAC significantly protected cells from mortality, DNA damage, loss of MMP, and caspase 3 activity induced by FEN. To the best of our knowledge, this is the first study showing that FEN induced mitochondrial apoptosis via ROS generation and oxidative stress.
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Affiliation(s)
- Imen Ayed-Boussema
- Laboratory of Research on Biologically Compatible Compounds, LR01SE17 University of Monastir, Faculty of Dental Medicine, 5019 Monastir, Tunisia; Faculty of Sciences of Gafsa, University of Gafsa, Tunisia.
| | - Karima Rjiba-Touati
- Laboratory of Research on Biologically Compatible Compounds, LR01SE17 University of Monastir, Faculty of Dental Medicine, 5019 Monastir, Tunisia; Faculty of Sciences of Gafsa, University of Gafsa, Tunisia
| | - Hiba Hamdi
- Laboratory of Research on Biologically Compatible Compounds, LR01SE17 University of Monastir, Faculty of Dental Medicine, 5019 Monastir, Tunisia
| | - Hanen Chaabani
- Laboratory of Research on Biologically Compatible Compounds, LR01SE17 University of Monastir, Faculty of Dental Medicine, 5019 Monastir, Tunisia
| | - Salwa Abid-Essefi
- Laboratory of Research on Biologically Compatible Compounds, LR01SE17 University of Monastir, Faculty of Dental Medicine, 5019 Monastir, Tunisia
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Merghni A, Hamdi H, Ben Abdallah M, Al-Hasawi ZM, Al-Quwaie DA, Abid-Essefi S. Detection of Methicillin-Resistant Staphylococcus aureus among Foodborne Pathogenic Strains and Assessment of Their Adhesion Ability and Cytotoxic Effects in HCT-116 Cells. Foods 2023; 12:foods12050974. [PMID: 36900491 PMCID: PMC10001405 DOI: 10.3390/foods12050974] [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: 01/25/2023] [Revised: 02/14/2023] [Accepted: 02/21/2023] [Indexed: 03/02/2023] Open
Abstract
Staphylococcus aureus is one of the high-threat pathogens equipped with a repertoire of virulence factors making it responsible for many infections in humans, including foodborne diseases. The present study aims to characterize antibiotic resistance and virulence factors in foodborne S. aureus isolates, and to investigate their cytotoxic effects in human intestinal cells (HCT-116). Our results revealed methicillin resistance phenotypes (MRSA) along with the detection of mecA gene (20%) among tested foodborne S. aureus strains. Furthermore, 40% of tested isolates showed a strong ability for adhesion and biofilm formation. A high rate of exoenzymes production by tested bacteria was also registered. Additionally, treatment with S. aureus extracts leads to a significant decrease in HCT-116 cell viability, accompanied by a reduction in the mitochondrial membrane potential (MMP), as a result of reactive oxygen species (ROS) generation. Thereby, S. aureus food poisoning remains daunting and needs particular concern to prevent foodborne illness.
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Affiliation(s)
- Abderrahmen Merghni
- Laboratory of Antimicrobial Resistance LR99ES09, Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis 1007, Tunisia
- Correspondence:
| | - Hiba Hamdi
- Laboratory for Research on Biologically Compatible Compounds, LR01SE17, Faculty of Dental Medicine, University of Monastir, Monastir 5000, Tunisia
| | - Marwa Ben Abdallah
- Laboratory of Transmissible Diseases and Biologically Active Substances, Faculty of Pharmacy, University of Monastir, Monastir 5000, Tunisia
| | - Zaki M. Al-Hasawi
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Biological Sciences Department, College of Science & Arts, King Abdulaziz University, Rabigh 21911, Saudi Arabia
| | - Diana A. Al-Quwaie
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Salwa Abid-Essefi
- Laboratory for Research on Biologically Compatible Compounds, LR01SE17, Faculty of Dental Medicine, University of Monastir, Monastir 5000, Tunisia
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Rjiba-Touati K, Ayed-Boussema I, Hamdi H, Azzebi A, Abid S. Bromuconazole fungicide induces cell cycle arrest and apoptotic cell death in cultured human colon carcinoma cells (HCT116) via oxidative stress process. Biomarkers 2022; 27:659-670. [PMID: 35968645 DOI: 10.1080/1354750x.2022.2098378] [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: 11/02/2022]
Abstract
BACKGROUND Bromuconazole, a fungicide belonging to the triazole family, is a plant protection product used to control, repel or destroy fungi that may develop on crops. We investigated the pro-apoptotic effect of bromuconazole and the role of oxidative stress in the death mechanism induced by this fungicide in this study. METHODS The human colon HCT116 cell line was treated with Bromuconazole (IC50/4, IC50/2, and IC50) for 24 h. Cells were collected and analysed for biomarkers of apoptotic cell death and oxidative stress as well as for the assessment of genotoxic damage. RESULTS Our study showed that bromuconazole caused a concentration-dependent increase in cell mortality with an IC50 of 180 µM. Bromuconazole induced cell cycle arrest in the G0/G1 phase and DNA synthesis inhibition. The Comet assay showed that bromuconazole caused DNA damage in a concentration-dependent manner. Bromuconazole-induced apoptosis was observed by, Annexin-V/FITC-PI and BET/AO staining, by mitochondrial membrane depolarisation, and by increased caspase-3 activity. In addition, bromuconazole induced a significant increase in ROS and lipid peroxidation levels and a disruption in SOD and CAT activities. N-acetylcysteine (NAC) strongly prevents cytotoxic and genotoxic damage caused by bromuconazole. CONCLUSION Bromuconazole toxicity was through the oxidative stress process, which causes DNA damage and mitochondrial dysfunction, leading to cell cycle arrest and apoptotic death of HCT116 cells.
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Affiliation(s)
- Karima Rjiba-Touati
- Faculty of Dentistry, Laboratory of Research on Biologically Compatible Compounds, Monastir, Tunisia.,Faculty of Sciences of Gafsa, University Campus, Gafsa, Tunisia
| | - Imen Ayed-Boussema
- Faculty of Dentistry, Laboratory of Research on Biologically Compatible Compounds, Monastir, Tunisia.,Faculty of Sciences of Gafsa, University Campus, Gafsa, Tunisia
| | - Hiba Hamdi
- Faculty of Dentistry, Laboratory of Research on Biologically Compatible Compounds, Monastir, Tunisia
| | - Awatef Azzebi
- Department of Nephrology, Dialysis, and Transplant, University Hospital of Sahloul, Sousse, Tunisia
| | - Salwa Abid
- Faculty of Dentistry, Laboratory of Research on Biologically Compatible Compounds, Monastir, Tunisia
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Ayed-Boussema I, Rjiba K, Hamdi H, M'nassri A, Azzebi A, Mokni M, Abid S. Evaluation of hepatotoxicity and nephrotoxicity induced by Fenpyroximate in subchronic-orally exposed Wistar rats. Biomarkers 2022; 27:648-658. [PMID: 35775504 DOI: 10.1080/1354750x.2022.2096928] [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: 11/02/2022]
Abstract
Backgrounds. Fenpyroximate (FEN) is an acaricide that inhibits the complex I of the mitochondrial respiratory chain. The aim of this work was to explore the hepatotoxic and nephrotoxic effects of FEN on Wistar rats. Methods. The study involved five groups: a control group and four groups treated with FEN at 1, 2, 4, and 8 mg/Kg bw for 28 consecutive days. Histological examination and biochemical analysis of hepatic and renal biomarkers were performed. The malondialdehyde (MDA), protein carbonyl levels, and antioxidant enzymes activities were measured. Comet assay was conducted to explore FEN genotoxicity. Results. FEN induced a disturbance of the hepatic and renal functions as evidenced by an increase in AST, ALT, ALP, creatinine, and uric acid levels and histopathological modifications in the two examined tissues. FEN increased hepatic and renal lipid peroxidation and protein oxidation. The activities of liver and kidney SOD, CAT, GPX, and GST are increased significantly in FEN-treated rats at doses of 2 and 4 mg/kg bw. However, with the dose of 8 mg/kg bw of FEN, these activities are decreased. Moreover, FEN increased DNA damage in a dose-dependent manner. Conclusion. FEN was hepatotoxic and nephrotoxic very likely through induction of oxidative stress.
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Affiliation(s)
- Imen Ayed-Boussema
- Laboratory of Research on Biologically Compatible Compounds, LR01SE17. University of Monastir, Faculty of Dental Medicine, 5019, Monastir, Tunisia.,Faculty of Sciences of Gafsa. University of Gafsa
| | - Karima Rjiba
- Laboratory of Research on Biologically Compatible Compounds, LR01SE17. University of Monastir, Faculty of Dental Medicine, 5019, Monastir, Tunisia.,Faculty of Sciences of Gafsa. University of Gafsa
| | - Hiba Hamdi
- Laboratory of Research on Biologically Compatible Compounds, LR01SE17. University of Monastir, Faculty of Dental Medicine, 5019, Monastir, Tunisia
| | - Asma M'nassri
- Laboratory of Research on Biologically Compatible Compounds, LR01SE17. University of Monastir, Faculty of Dental Medicine, 5019, Monastir, Tunisia.,Faculty of Sciences of Gafsa. University of Gafsa
| | - Awatef Azzebi
- Department of Nephrology, Dialysis, and Transplant, University Hospital of Sahloul, Sousse, Tunisia
| | - Moncef Mokni
- Department of Anatomic Pathology and Histology, Hospital of Hached, Sousse, Tunisia
| | - Salwa Abid
- Laboratory of Research on Biologically Compatible Compounds, LR01SE17. University of Monastir, Faculty of Dental Medicine, 5019, Monastir, Tunisia
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Rjiba-Touati K, Hamdi H, M'nassri A, Rich S, Mokni M, Abid S. Brain injury, genotoxic damage and oxidative stress induced by Bromuconazole in male Wistar rats and in SH-SY5Y cell line. Biomarkers 2022; 27:599-607. [PMID: 35726374 DOI: 10.1080/1354750x.2022.2087002] [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: 11/02/2022]
Abstract
BACKGROUND Bromuconazole is a widely used triazole against various fungi disease. It's employment provokes harmful effects on the environment and human health. In the present study, we explored bromuconazole toxic effects in both rat brain tissue and SH-SY5Y cell line. METHODS Male Wistar rats were administrated orally with Bromuconazole (NOEL/4, NOEL o and NOEL ×2) daily for consecutive 28 days. In addition, neuronal SH-SY5Y cell line was used. The rat brains and SH-SY5Y cells were collected and analysed for AChE activity, oxidative stress biomarkers, genotoxicity and histopathological alterations. RESULTS Our results showed that rat exposure to bromuconazole at doses corresponding to NOEL/4, NOEL and NOEL ×2 caused brain histopathological alteration and decrease in acetylcholine esterase (AChE) activity. In SH-SY5Y cell line, bromuconazole strongly induced cell mortality with an IC50 about 250 µM. Bromuconazole induced also DNA damage as assessed by comet assay in both rat brain tissue and SH-SY5Y cell. Moreover, bromuconazole increased ROS production, malondialdehyde (MDA) and protein carbonyl (PC) levels and enhanced the enzymatic activities of catalase (CAT), superoxide dismutase (SOD), Glutathione-S-transferase (GST) and peroxidase (GPx) in the two studied systems. CONCLUSION Therefore, we can deduce that bromuconazole-caused neurotoxicity may be related to oxidative statue disturbance.HIGHLIGHTSBromuconzole causes oxidative stress in the brain tissue of male Wistar rats.Bromuconazole enhances MDA, PC levels and induces DNA damage in rat brain.Bromuconazole provokes disturbance of the neuronal antioxidant system.Bromuconazole induces histopathological alterations in rat brain.Bromuconazole exposure induced cytotoxic effects and DNA damage in SH-SY5Y cells.Bromuconazole exposure induced oxidative stress in SH-SY5Ycells.
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Affiliation(s)
- Karima Rjiba-Touati
- Faculty of Dentistry, Laboratory of Research on Biologically Compatible Compounds, Monastir, Tunisia.,Facutly of Science of Gafsa, University of Gafsa, Gafsa, Tunisia
| | - Hiba Hamdi
- Faculty of Dentistry, Laboratory of Research on Biologically Compatible Compounds, Monastir, Tunisia
| | - Asma M'nassri
- Faculty of Dentistry, Laboratory of Research on Biologically Compatible Compounds, Monastir, Tunisia
| | - Siwar Rich
- Faculty of Dentistry, Laboratory of Research on Biologically Compatible Compounds, Monastir, Tunisia
| | - Moncef Mokni
- Department of Anatomic Pathology and Histology, Hospital of Hached, Sousse, Tunisia
| | - Salwa Abid
- Faculty of Dentistry, Laboratory of Research on Biologically Compatible Compounds, Monastir, Tunisia
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Ayed-Boussema I, Hamdi H, Chaabani H, M’nassri A, Mokni M, Abid S. Fenpyroximate induced cytotoxicity and genotoxicity in Wistar rat brain and in human neuroblastoma (SH-SY5Y) cells: involvement of oxidative stress and apoptosis. Neurotoxicology 2022; 91:177-187. [DOI: 10.1016/j.neuro.2022.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 04/21/2022] [Accepted: 05/11/2022] [Indexed: 11/16/2022]
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Hamdi H, Ben Othmene Y, Khlifi A, Hallara E, Houas Z, Najjar MF, Abid-Essefi S. Subchronic exposure to Epoxiconazole induced-heart damage in male Wistar rats. Pestic Biochem Physiol 2022; 182:105034. [PMID: 35249655 DOI: 10.1016/j.pestbp.2022.105034] [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: 12/04/2021] [Revised: 12/24/2021] [Accepted: 01/03/2022] [Indexed: 06/14/2023]
Abstract
Epoxiconazole is a worldwide fungicide used to control fungal diseases. Although to its hazardous effects in non-target species, little information is available in the literature to show the cardiotoxic effects of EPX in male rats. Thus, our investigation aimed to assess the outcomes of EPX exposure on some biochemical parameters, the generation of oxidative stress, DNA fragmentation and histopathological alterations in the heart tissue. EPX was administered orally at doses of 8, 24, 40 and 56 mg/kg body weight, representing, respectively NOEL (No observed effect level), NOEL× 3, NOEL× 5 and NOEL× 7 for 28 consecutive days in male Wistar rats. Our results show that EPX induced a significant decrease of cardiac acetylcholinesterase, an increase of biochemical markers, such as creatinine phosphokinase (CPK) and a perturbation of the lipid profile. Furthermore, EPX caused diverse histological modifications in the myocardium, including congestion of cardiac blood vessels, cytoplasmic vacuolization, leucocytic infiltration and hemorrhage. Indeed, we have shown that EPX induces increase of lipid peroxidation, protein oxidation levels and DNA damage. On the other hand, we have found an increase of the antioxidant enzymes activity such as catalase (CAT) and superoxide dismutase (SOD) activities. The glutathione peroxidase and glutathione S tranferase initially enhanced at the doses of 8, 24, and 40 mg/kg b.w. and then decreased at the dose of 56 mg/kg b.w. In conclusion, our work has shown that EPX causes cardiotoxic effects by altering redox status and damaging heart tissue.
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Affiliation(s)
- Hiba Hamdi
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, University of Monastir, Avicenne Street, 5019 Monastir, Tunisia
| | - Yosra Ben Othmene
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, University of Monastir, Avicenne Street, 5019 Monastir, Tunisia
| | - Aida Khlifi
- Research Laboratory "Bioressources: Integrative Biology & Valorisation, University of Monastir, Tunisia
| | - Elhem Hallara
- Laboratory of Biochemistry and Toxicology, Fattouma Bourguiba University, Hospital of Monastir, Monastir, Tunisia
| | - Zohra Houas
- Laboratory of Histology and Cytogenetic (Research Unit of Genetic, Genotoxicity and Childhood Illness UR12ES10), Faculty of Medicine, University of Monastir, Street Avicenne, Monastir 5019, Tunisia
| | - Mohamed Fadhel Najjar
- Laboratory of Biochemistry and Toxicology, Fattouma Bourguiba University, Hospital of Monastir, Monastir, Tunisia
| | - Salwa Abid-Essefi
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, University of Monastir, Avicenne Street, 5019 Monastir, Tunisia.
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Rjiba-Touati K, Hamdi H, M'nassri A, Guedri Y, Mokni M, Abid S. Bromuconazole caused genotoxicity and hepatic and renal damage via oxidative stress process in Wistar rats. Environ Sci Pollut Res Int 2022; 29:14111-14120. [PMID: 34601692 DOI: 10.1007/s11356-021-16091-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 04/16/2021] [Accepted: 08/15/2021] [Indexed: 06/13/2023]
Abstract
Bromuconazole is a triazole pesticide used to protect vegetables and fruits against diverse fungi pathologies. However, its utilization may be accompanied by diverse tissue injuries. In this study, we evaluated the biochemical and histopathological modifications, and we analyzed genotoxic and oxidative stress, in the aim to examine bromuconazole effects in the liver and kidney. We subdivided animals into four groups, each one contains six adult male Wistar rats. Untreated rats received daily a corn oil (vehicle) orally. Three oral bromuconazole doses were tested (1, 5, and 10 % of LD50) daily for 28 days. Bromuconazole increased the plasma activities of alkaline phosphatase, lactate dehydrogenase, and transaminases. It also increased the plasma levels of creatinine and uric acid. Histopathological check showed that bromuconazole caused organ damage. This study makes known that bromuconazole caused conspicuous DNA damage either in hepatic or kidney tissues, with a significant increase in the levels of malondialdehyde and protein carbonyl followed by an enhancement in catalase and superoxide dismutase enzymatic activities, and these increases are in a dose-dependent manner. In other side, we found that Glutathione-S-transferase and peroxidase activities raised. Our outcomes highlight that bromuconazole exposure induced genotoxic damage and organ damage which may be caused by the disturbances of oxidative stress statue in the liver and kidney.
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Affiliation(s)
- Karima Rjiba-Touati
- Laboratory of Research on Biologically Compatible Compounds, Faculty of Dentistry, University of Monastir, Street Avicenne, 5000, Monastir, Tunisia.
| | - Hiba Hamdi
- Laboratory of Research on Biologically Compatible Compounds, Faculty of Dentistry, University of Monastir, Street Avicenne, 5000, Monastir, Tunisia
| | - Asma M'nassri
- Laboratory of Research on Biologically Compatible Compounds, Faculty of Dentistry, University of Monastir, Street Avicenne, 5000, Monastir, Tunisia
| | - Yosra Guedri
- Department of Nephrology, Dialysis, and Transplant, University Hospital of Sahloul, Sousse, Tunisia
| | - Moncef Mokni
- Department of Anatomic Pathology and Histology, Hospital of Hached, Sousse, Tunisia
| | - Salwa Abid
- Laboratory of Research on Biologically Compatible Compounds, Faculty of Dentistry, University of Monastir, Street Avicenne, 5000, Monastir, Tunisia
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Hamdi H, Graiet I, Abid-Essefi S, Eyer J. Epoxiconazole profoundly alters rat brain and properties of neural stem cells. Chemosphere 2022; 288:132640. [PMID: 34695486 DOI: 10.1016/j.chemosphere.2021.132640] [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: 05/28/2021] [Revised: 10/09/2021] [Accepted: 10/19/2021] [Indexed: 06/13/2023]
Abstract
Epoxiconazole (EPX), a widely used fungicide for domestic, medical, and industrial applications, could cause neurodegenerative diseases. However, the underling mechanism of neurotoxicity is not well understood. This study aimed to investigate the possible toxic outcomes of Epoxiconzole, a triazole fungicide, on the brain of adult rats in vivo, and in vitro on neural stem cells derived from the subventricular zone of newborn Wistar rats. Our results revealed that oral exposure to EPX at these concentrations (8, 24, 40, 56 mg/kg bw representing respectively NOEL (no observed effect level), NOEL × 3, NOEL × 5, and NOEL × 7) for 28 days caused a considerable generation of oxidative stress in adult rat brain tissue. Furthermore, a significant augmentation in lipid peroxidation and protein oxidation has been found. Moreover, it induced an elevation of DNA fragmentation as assessed by the Comet assay. Indeed, EPX administration impaired activities of antioxidant enzymes and inhibited AChE activity. Concomitantly, this pesticide produced histological alterations in the brain of adult rats. Regarding the embryonic neural stem cells, we demonstrated that the treatment by EPX reduced the viability of cells with an IC50 of 10 μM. It also provoked the reduction of cell proliferation, and EPX triggered arrest in G1/S phase. The neurosphere formation and self-renewal capacity was reduced and associated with decreased differentiation. Moreover, EPX induced cytoskeleton disruption as evidenced by immunocytochemical analysis. Our findings also showed that EPX induced apoptosis as evidenced by a loss of mitochondrial transmembrane potential (ΔΨm) and an activation of caspase-3. In addition, EPX promoted ROS production in neural stem cells. Interestingly, the pretreatment of neural stem cells with the N-acetylcysteine (ROS scavenger) attenuated EPX-induced cell death, disruption of neural stem cells properties, ROS generation and apoptosis. Thus, the use of this hazardous material should be restricted and carefully regulated.
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Affiliation(s)
- Hiba Hamdi
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, University of Monastir, Avicenne Street, 5019, Monastir, Tunisia; Higher Institute of Biotechnology, University of Monastir, Tunisia
| | - Imen Graiet
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, University of Monastir, Avicenne Street, 5019, Monastir, Tunisia
| | - Salwa Abid-Essefi
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, University of Monastir, Avicenne Street, 5019, Monastir, Tunisia
| | - Joel Eyer
- Laboratoire Micro et Nanomédecines Translationnelles (MINT), Inserm 1066, CNRS 6021, Institut de Biologie de La Santé, Centre Hospitalier Universitaire, 49033, Angers, France.
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Abu-Zaid AA, Al-Barty A, Morsy K, Hamdi H. In vitro study of antimicrobial activity of some plant seeds against bacterial strains causing food poisoning diseases. BRAZ J BIOL 2021; 82:e256409. [PMID: 34852157 DOI: 10.1590/1519-6984.256409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 10/08/2021] [Indexed: 11/22/2022] Open
Abstract
In this research, some plant seeds powder was evaluated to find their potential effect to rule diseases of food poisoning. Antimicrobial effect of five plant seeds was examined contra Bacillus cereus, Staphylococcus aureus, Escherichia coli, Klebsiella. pneumonia and Candida albicans by using well diffusion method. Antimicrobial activity studies revealed high potential activity of plant seeds powder of Nigella sativa L., cucurbita pepo, Sesamum radiatum, Trigonella foenum-graecum, Linum usitatissimum with variable efficiency contra tested microbial strains with concentration of 100 mg/ml, except Sesamum radiatum scored no effect. The T. foenum and N. sativa seed powder showed the largest inhibition zone (24-20 mm) contra K. pneumonia, followed by S. aureus (20-18 mm) and C. albicans (15mm) respectively. The five plant seeds powder exhibited bacteriostatic and bactericidal effects with MIC's 20 and MBC 40 mg/ml against K. pneumonia, and MIC's 40 and MBC 60 mg/ml against S. aureus. The results of this study indicated that plants seeds powder have promising antimicrobial activities and their potential applications in food process. It could be utilized as a natural medicinal alternative instead of chemical substance.
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Affiliation(s)
- A A Abu-Zaid
- Taif University, Alkhurmah University College, Department of Biology, Taif, Saudi Arabia
| | - A Al-Barty
- Taif University, College of Science, Department of Biology, Taif, Saudi Arabia
| | - K Morsy
- Cairo University, Faculty of Science, Zoology Department, Cairo, Egypt.,King Khalid University, College of Science, Biology Department, Abha, Saudi Arabia
| | - H Hamdi
- Taif University, College of Science, Department of Biology, Taif, Saudi Arabia
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Morsy K, Al-Malki J, Dajem S, Hamdi H, Ali A, Adel A. Morphology and molecular phylogeny of Heterobothrium lamothei (Monogenea: Diclidophoridae), a gill parasite infecting the tiger puffer fish Lagocephalus sceleratus (Tetraodontidae). ARQ BRAS MED VET ZOO 2021. [DOI: 10.1590/1678-4162-12303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
ABSTRACT Members of the family Diclidophoridae are potentially dangerous species for the puffer fish aquaculture worldwide. They are parasitic polyopisthocotyleans, with a posterior haptor equipped with clamps for attachment to the host's surface, allowing the worm to resist the flow of water to maintain its position on gills. The anterior body of the worm is deformable, allows the worm to feed on blood sucked from fish gills. The present study is the first description of a Heterobothrium species from the gills of the tiger puffer Lagocephalus sceleratus (Tetraodontidae) from the coasts of the Arabian Gulf at Jubail, Saudi Arabia morphologically by light microscopy as well as by molecular analysis of the parasite partial 28S rRNA through multiple sequence alignments and phylogeny by maximum likelihood analysis which is provided for the first time for the described species. Seventeen tiger puffer fish were captured alive from marine water off Saudi Arabia; gills were separated and further examined for parasitic infection. Nine fish were found infected with a monogenean parasite which was robust, equipped by two buccal organs at the tapered anterior end; the posterior haptor was rectangular with four symmetrically arranged clamps, with no isthmus. Marginal hooks absent. Ovary elongated, U-shaped, testes numerous, irregularly shaped and extended from the posterior part of the ovary to the anterior margin of the haptor. Copulatory organ muscular, as a spherical cup armed with 12 to 15 genital hooks. The molecular analysis of the parasite 28s rRNA and phylogeny revealed a percentage of identities between 87.47-89.09%, with Diclidophoridae species within the monophyletic clade of Mazocraeidea where a maximum percentage of 89.09% were obtained for the morphologically different sister taxon H. okamotoi. The results obtained from molecular analysis are consistent with the conclusions drawn from morphological classification where that the parasite recorded was morphologically similar to H. lamothei which was not characterized by molecular analysis before. The recovered sequences were deposited into the GeneBank under accession number MT322610.
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Affiliation(s)
- K. Morsy
- King Khalid University, Saudi Arabia; Cairo University, Egypt
| | | | | | | | | | - A. Adel
- South Valley University, Egypt
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Othmène YB, Salem IB, Hamdi H, Annabi E, Abid-Essefi S. Tebuconazole induced cytotoxic and genotoxic effects in HCT116 cells through ROS generation. Pestic Biochem Physiol 2021; 174:104797. [PMID: 33838701 DOI: 10.1016/j.pestbp.2021.104797] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [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: 09/08/2020] [Revised: 12/24/2020] [Accepted: 02/01/2021] [Indexed: 06/12/2023]
Abstract
Tebuconazole (TEB) is a common triazole fungicide that has been widely used for the control of plant pathogenic fungi, suggesting that mammal exposure occurs regularly. Several studies demonstrated that TEB exposure has been linked to a variety of toxic effects, including neurotoxicity, immunotoxicity, reprotoxicity and carcinogenicity. However, there is a few available data regarding the molecular mechanism involved in TEB-induced toxicity. The current study was undertaken to investigate the toxic effects of TEB in HCT116 cells. Our results showed that TEB caused cytotoxicity by inhibiting cell viability as assessed by the MTT assay. Furthermore, we have demonstrated that TEB induced a significant increase in the reactive oxygen species (ROS) production leading to the induction of lipid peroxidation and DNA fragmentation and increased superoxide dismutase (SOD) and catalase (CAT) activities. Moreover, TEB exposure induced mitochondrial membrane potential loss and caspase-9/-3 activation. Treatment with general caspases inhibitor (Z-VAD-fmk) significantly prevented the TEB-induced cell death, indicating that TEB induced caspases-dependent cell death. These findings suggest the involvement of oxidative stress and apoptosis in TEB-induced toxicity in HCT116.
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Affiliation(s)
- Yosra Ben Othmène
- University of Monastir, Faculty of Dental Medicine, Laboratory for Research on Biologically Compatible Compounds, LR01SE17, Avicenne Street, 5000 Monastir, Tunisia; Higher Institute of Biotechnology, University of Monastir, Taher Haddad Street, 5000, Monastie, Tunisia
| | - Intidhar Ben Salem
- University of Monastir, Faculty of Dental Medicine, Laboratory for Research on Biologically Compatible Compounds, LR01SE17, Avicenne Street, 5000 Monastir, Tunisia; Higher Institute of Biotechnology, University of Monastir, Taher Haddad Street, 5000, Monastie, Tunisia; University of Sousse, Faculty of Medicine of Sousse, 4000, Tunisia
| | - Hiba Hamdi
- University of Monastir, Faculty of Dental Medicine, Laboratory for Research on Biologically Compatible Compounds, LR01SE17, Avicenne Street, 5000 Monastir, Tunisia; Higher Institute of Biotechnology, University of Monastir, Taher Haddad Street, 5000, Monastie, Tunisia
| | - Emna Annabi
- University of Monastir, Faculty of Dental Medicine, Laboratory for Research on Biologically Compatible Compounds, LR01SE17, Avicenne Street, 5000 Monastir, Tunisia; Higher Institute of Biotechnology, University of Monastir, Taher Haddad Street, 5000, Monastie, Tunisia
| | - Salwa Abid-Essefi
- University of Monastir, Faculty of Dental Medicine, Laboratory for Research on Biologically Compatible Compounds, LR01SE17, Avicenne Street, 5000 Monastir, Tunisia; Higher Institute of Biotechnology, University of Monastir, Taher Haddad Street, 5000, Monastie, Tunisia.
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Hamdi H, Abid-Essefi S, Eyer J. Neuroprotective effects of Myricetin on Epoxiconazole-induced toxicity in F98 cells. Free Radic Biol Med 2021; 164:154-163. [PMID: 33429020 DOI: 10.1016/j.freeradbiomed.2020.12.451] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 09/08/2020] [Revised: 12/26/2020] [Accepted: 12/29/2020] [Indexed: 01/08/2023]
Abstract
Epoxiconazole is one of the most commonly used fungicides in the world. The exposition of humans to pesticides is mainly attributed to its residue in food or occupational exposure in agricultural production. Because of its lipophilic character, Epoxiconazole can accumulate in the brain Heusinkveld et al. (2013) [1]. Consequently, it is urgent to explore efficient strategies to prevent or treat Epoxiconazole-related brain damages. The use of natural molecules commonly found in our diet represents a promising avenue. Flavonoids belong to a major sub-group compounds possessing powerful antioxidant activities based on their different structural and sterical properties [2]. We choose to evaluate Myricetin, a flavonoid with a wide spectrum of pharmacological effects, for its possible protective functions against Epoxiconazole-induced toxicities. The cytotoxicity induced by this fungicide was evaluated by the cell viability, cell cycle arrest, ROS generation, antioxidant enzyme activities, and Malondialdehyde production, as previously described in Hamdi et al., 2019 [3]. The apoptosis was assessed through the evaluation of the mitochondrial transmembrane potential (ΔΨm), caspases activation, DNA fragmentation, cytoskeleton disruption, nuclear condensation, appearance of sub-G0/G1 peak (fragmentation of the nucleus) and externalization of Phosphatidylserine. This study indicates that pre-treatment of F98 cells with Myricetin during 2 h before Epoxiconazole exposure significantly increased the survival of cells, restored DNA synthesis of the S phase, abrogated the ROS generation, regulated the activities of Catalase (CAT) and Superoxide Dismutase (SOD), and reduced the MDA level. The loss of mitochondrial membrane potential, DNA fragmentation, cytoskeleton disruption, chromatin condensation, Phosphatidylserine externalization, and Caspases activation were also reduced by Myricetin. Together, these findings indicate that Myricetin is a powerful natural product able to protect cells from Epoxiconazole-induced cytotoxicity and apoptosis.
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Affiliation(s)
- Hiba Hamdi
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, University of Monastir, Avicenne Street, 5019, Monastir, Tunisia; Higher Institute of Biotechnology, University of Monastir, Tunisia
| | - Salwa Abid-Essefi
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, University of Monastir, Avicenne Street, 5019, Monastir, Tunisia
| | - Joel Eyer
- Laboratoire Micro et NanomédecinesTranslationnelles (MINT), Inserm 1066, CNRS 6021, Institut de Biologie de La Santé, Centre Hospitalier Universitaire, 49033, Angers, France.
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Farrag FA, Morsy K, Hamdi H, Kassab M, Hassan A, Abdelmohdy F, Shukry M, Abumandour MMA, Fayed M. Morphology of the lips, cheeks, and the hard palate of the Egyptian water buffalo ( Bubalus bubalis): a focus on histological, histochemical, and ultrastructural aspects. Iran J Vet Res 2021; 22:298-309. [PMID: 35126537 PMCID: PMC8806174 DOI: 10.22099/ijvr.2021.40728.5898] [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] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 09/29/2021] [Accepted: 10/17/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND The available data is scanty about Egyptian water buffalo lips, cheeks, and palate. AIMS The current investigation was focused on describing the morphology of the lip, cheek, and palate. METHODS Our study included the gross, light, and electron microscopic examinations of ten heads of the Egyptian water buffalos. RESULTS The nasolabial plate surface carried numerous scales of keratinized epithelium. Internal labial surface and labial mucocutaneous junctions were covered with stratified squamous keratinized epithelium. Two types of hair follicles in the dermis included ordinary and cavernous types characterized by cavernous space. The conical papillae on the internal aspect of the oral commissure were projected from the mucous membrane. Seromucous glands were occasionally observed under the oral mucous membrane of the commissure and gave positive PAS and AB. Conical papillae density on the inner cheek surface had some variations: the rostral part had large papillae, while the dorsal part had numerous papillae than the ventral part, the caudal part had a smaller number of papillae, while the middle part was devoid of papillae. Parotid duct opening in the buccal vestibule was without papillae. Conical papillae had two surfaces; the rostral surface was highly keratinized than the caudal one. The buccal gland was a compound tubuloacinar mixed (mucoserous) gland and mucus acini only reacted to PAS and AB. The oral surface of palatine rugae was covered with highly keratinized epithelium than the aboral surface. Palatine glands showed PAS and AB positive. CONCLUSION The result describes the relationship between the available food particles, environmental conditions and the lip, cheek, and palate appearance, and structure.
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Affiliation(s)
- F. A. Farrag
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Kafrelsheikh University, 33511 Kafrelsheikh, Egypt
| | - K. Morsy
- Biology Department, College of Science, King Khalid University, Abha, Saudi Arabia, and Zoology Department, Faculty of Science, Cairo University, Cairo, Egypt
| | - H. Hamdi
- Biology Department, College of Science, Taif University, Taif, Saudi Arabia
| | - M. Kassab
- Department of Cytology and Histology, Faculty of Veterinary Medicine, Kafrelsheikh University, 33511 Kafrelsheikh, Egypt
| | - A. Hassan
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Kafrelsheikh University, 33511 Kafrelsheikh, Egypt
| | - F. Abdelmohdy
- Department of Cytology and Histology, Faculty of Veterinary Medicine, Kafrelsheikh University, 33511 Kafrelsheikh, Egypt
| | - M. Shukry
- Department of Physiology, Faculty of Veterinary Medicine, Kafrelsheikh University, 33511 Kafrelsheikh, Egypt
| | - M. M. A. Abumandour
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt (current address)
| | - M. Fayed
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Kafrelsheikh University, 33511 Kafrelsheikh, Egypt
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Othmène YB, Hamdi H, Amara I, Abid-Essefi S. Tebuconazole induced oxidative stress and histopathological alterations in adult rat heart. Pestic Biochem Physiol 2020; 170:104671. [PMID: 32980069 DOI: 10.1016/j.pestbp.2020.104671] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [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: 04/18/2020] [Revised: 07/21/2020] [Accepted: 07/25/2020] [Indexed: 06/11/2023]
Abstract
TEB belongs to the family of triazole fungicides and it is used to protect agricultural crop plants from fungal pathogens. The information regarding its cardiotoxic effects through different pathways particularly by perturbing the oxidative balance and causing damage to the myocardium is still limited. In the present study, oxidative and histopathologic damages caused by TEB in the cardiac tissue of male adult rats, were evaluated. Rats were exposed orally to TEB at 0.9, 9, 27 and 45 mg/kg b.w. for 28 days. Results showed that following TEB treatment malondialdehyde (MDA), protein carbonyl (PC), advanced oxidation protein product (AOPP), antioxidant enzyme activities (GPx and GR) and GSSG levels increased, while GSH levels and thus the GSH/GSSG ratio decreased. Superoxide dismutase (SOD) and catalase (CAT) initially increased at the doses of 0.9, 9 and 27 mg/kg b.w. and then decreased at the dose of 45 mg/kg b.w. Moreover, western blot analysis showed that TEB increased SOD1, CAT and HSP70 protein levels after 24 h. Furthermore, TEB induced various histological changes in the myocardium, including leucocytic infiltration, hemorrhage congestion of cardiac blood vessels and cytoplasmic vacuolization. Therefore, our investigation revealed, that TEB exhibits cardiotoxic effects by changing oxidative balance and damaging the cardiac tissue.
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Affiliation(s)
- Yosra Ben Othmène
- University of Monastir, Faculty of Dental Medicine of Monastir, Laboratory for Research on Biologically Compatible Compounds, LR01SE17, Rue Avicenne, 5000 Monastir, Tunisia
| | - Hiba Hamdi
- University of Monastir, Faculty of Dental Medicine of Monastir, Laboratory for Research on Biologically Compatible Compounds, LR01SE17, Rue Avicenne, 5000 Monastir, Tunisia
| | - Ines Amara
- University of Monastir, Faculty of Dental Medicine of Monastir, Laboratory for Research on Biologically Compatible Compounds, LR01SE17, Rue Avicenne, 5000 Monastir, Tunisia
| | - Salwa Abid-Essefi
- University of Monastir, Faculty of Dental Medicine of Monastir, Laboratory for Research on Biologically Compatible Compounds, LR01SE17, Rue Avicenne, 5000 Monastir, Tunisia..
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17
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Othmène YB, Hamdi H, Salem IB, Annabi E, Amara I, Neffati F, Najjar MF, Abid-Essefi S. Oxidative stress, DNA damage and apoptosis induced by tebuconazole in the kidney of male Wistar rat. Chem Biol Interact 2020; 330:109114. [PMID: 32735800 DOI: 10.1016/j.cbi.2020.109114] [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: 08/21/2019] [Revised: 04/03/2020] [Accepted: 04/22/2020] [Indexed: 12/18/2022]
Abstract
Tebuconazole (TEB) is a broad-spectrum conazole fungicide that has been used in agriculture in the control of foliar and soil-borne diseases of many crops. The present study has investigated the adverse effects of subchronic exposure to TEB on the kidney of male rats. Animals were divided into four equal groups and treated with TEB at increasing doses 0.9, 9 and 27 mg/kg body weight for 28 consecutive days. The results showed that TEB induced oxidative stress in the kidney demonstrated by an increase in malondialdehyde (MDA), protein carbonyl (PC), advanced oxidation protein product (AOPP) levels and DNA damage, as compared to the controls. Furthermore, superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx) activities were increased in the renal tissue of treated rats. Moreover, significant decrease in reduced glutathione (GSH) content in TEB-treated rats was observed, while oxidized glutathione (GSSG) levels were increased, thus a marked fall in GSH/GSSG ratio was registered in the kidney. Glutathione reductase (GR) activity showed a significant increase after TEB exposure. Moreover, TEB down-regulated the expression of Bcl2 and up-regulated the expression of Bax and caspase 3, which triggered apoptosis via the Bax/Bcl2 and caspase pathway. Also, TEB administration resulted in altered biochemical indicators of renal function and varying lesions in the overall histo-architecture of renal tissues. Taken together, our findings brought into light the renal toxicity induced by TEB, which was found to be significant at low doses.
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Affiliation(s)
- Yosra Ben Othmène
- University of Monastir, Faculty of Dental Medicine of Monastir, Laboratory for Research on Biologically Compatible Compounds, LR01SE17, Rue Avicenne, 5000, Monastir, Tunisia
| | - Hiba Hamdi
- University of Monastir, Faculty of Dental Medicine of Monastir, Laboratory for Research on Biologically Compatible Compounds, LR01SE17, Rue Avicenne, 5000, Monastir, Tunisia
| | - Intidhar Ben Salem
- University of Monastir, Faculty of Dental Medicine of Monastir, Laboratory for Research on Biologically Compatible Compounds, LR01SE17, Rue Avicenne, 5000, Monastir, Tunisia; University of Sousse, Faculty of Medicine of Sousse, Rue Mohamed Karoui, 4000, Tunisia
| | - Emna Annabi
- University of Monastir, Faculty of Dental Medicine of Monastir, Laboratory for Research on Biologically Compatible Compounds, LR01SE17, Rue Avicenne, 5000, Monastir, Tunisia
| | - Ines Amara
- University of Monastir, Faculty of Dental Medicine of Monastir, Laboratory for Research on Biologically Compatible Compounds, LR01SE17, Rue Avicenne, 5000, Monastir, Tunisia
| | - Fadwa Neffati
- Fattouma Bourguiba University Hospital, Laboratory of Biochemistry-Toxicology, Avenue 1 Juin 1955, 5000, Monastir, Tunisia
| | - Mohamed Fadhel Najjar
- Fattouma Bourguiba University Hospital, Laboratory of Biochemistry-Toxicology, Avenue 1 Juin 1955, 5000, Monastir, Tunisia
| | - Salwa Abid-Essefi
- University of Monastir, Faculty of Dental Medicine of Monastir, Laboratory for Research on Biologically Compatible Compounds, LR01SE17, Rue Avicenne, 5000, Monastir, Tunisia.
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Rabaoui B, Hamdi H, Braiek NB, Rodrigues M. A reconfigurable PID fault tolerant tracking controller design for LPV systems. ISA Trans 2020; 98:173-185. [PMID: 31495591 DOI: 10.1016/j.isatra.2019.08.049] [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: 09/08/2018] [Revised: 08/24/2019] [Accepted: 08/28/2019] [Indexed: 06/10/2023]
Abstract
This paper considers the design of a reconfigurable PID Fault Tolerant Tracking Controller (PID-FTTC) for Linear Parameter Varying (LPV) systems affected by actuator faults with the presence of disturbance. The LPV systems are represented through a polytopic LPV description with measurable gain scheduling functions. A new PID-FTTC scheme with a model reference, an adaptive PID controller and an Adaptive Polytopic Observer (APO), is developed. The main idea is to improve and to compare performances with this developed PID-FTTC versus previous similar FTC techniques especially about the settling time, the overshoot and integral error indices. By the way, this paper can reduce the conservatism of previous methods with more parameters design so as to avoid their disadvantages and to give better control loop performances especially in terms of accuracy and speed of trajectory tracking even when a fault occurs. So, in order to establish the stability of the reconfigured PID-FTTC, a new theoretical study is developed through the use of Linear Matrix Inequality (LMI). This new method is illustrated through a two-tank process where the results compared to previous ones, underline the improvements.
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Affiliation(s)
- B Rabaoui
- Advanced Systems Laboratory, Tunisian Polytechnic School, La Marsa 2078, Tunisia.
| | - H Hamdi
- Advanced Systems Laboratory, Tunisian Polytechnic School, La Marsa 2078, Tunisia.
| | - N BenHadj Braiek
- Advanced Systems Laboratory, Tunisian Polytechnic School, La Marsa 2078, Tunisia.
| | - M Rodrigues
- Automation and Process Engineering Laboratory, University of Lyon, Villeurbanne, F-69622, France.
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Ben Othmène Y, Hamdi H, Annabi E, Amara I, Ben Salem I, Neffati F, Najjar MF, Abid-Essefi S. Tebuconazole induced cardiotoxicity in male adult rat. Food Chem Toxicol 2020; 137:111134. [DOI: 10.1016/j.fct.2020.111134] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 12/22/2019] [Accepted: 01/14/2020] [Indexed: 01/04/2023]
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Hamdi H, Abid-Essefi S, Eyer J. Cytotoxic and genotoxic effects of epoxiconazole on F98 glioma cells. Chemosphere 2019; 229:314-323. [PMID: 31078888 DOI: 10.1016/j.chemosphere.2019.05.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 11/30/2018] [Revised: 04/25/2019] [Accepted: 05/02/2019] [Indexed: 06/09/2023]
Abstract
Epoxiconazole (EPX) is a very effective fungicide of the triazole family. Given its wide spectrum of use, the increased application of this pesticide may represent a serious risk on human health. Previous studies have found that EPX is cytotoxic to cells, although the exact mechanism remains elusive. In particular, the effect on the nervous system is poorly elucidated. Here we evaluated the implication of oxidative stress in the neurotoxicity and studied its apoptotic mechanism of action. We demonstrated that the treatment by EPX reduces the viability of cells in a dose dependent manner with an IC50 of 50 μM. It also provokes the reduction of cell proliferation. EPX could trigger arrest in G1/S phase of cell cycle with low doses, however with IC50, it induced an accumulation of F98 cells in G2/M phase. Moreover, EPX induced cytoskeleton disruption as evidenced by immunocytochemical analysis. It provoked also DNA fragmentation in a concentration dependent manner. The EPX induced apoptosis, which was observed by morphological changes and by positive Annexin V FITC-PI staining concurrent with a depolarization of mitochondria. Furthermore, the cell mortality provoked by EPX was significantly reduced by pretreatment with Z-VAD-FMK, a caspase inhibitor. Moreover, N-acetylcysteine (NAC) strongly restores cell viability that has been inhibited by EPX. The results of these findings highlight the implication of ROS generation in the neurotoxicity induced by EPX, indicating that the production of ROS is the main cause of the induction of apoptosis probably via the mitochondrial pathway.
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Affiliation(s)
- Hiba Hamdi
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, University of Monastir, Avicenne Street, Monastir, 5019, Tunisia; Higher Institute of Biotechnology, University of Monastir, Tunisia
| | - Salwa Abid-Essefi
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, University of Monastir, Avicenne Street, Monastir, 5019, Tunisia
| | - Joel Eyer
- Laboratoire Micro et Nanomédecines Translationnelles (MINT), Inserm 1066, CNRS 6021, Institut de Biologie de la Santé, Centre Hospitalier Universitaire, Angers, 49033, France.
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Hamdi H, Othmène YB, Ammar O, Klifi A, Hallara E, Ghali FB, Houas Z, Najjar MF, Abid-Essefi S. Oxidative stress, genotoxicity, biochemical and histopathological modifications induced by epoxiconazole in liver and kidney of Wistar rats. Environ Sci Pollut Res Int 2019; 26:17535-17547. [PMID: 31025280 DOI: 10.1007/s11356-019-05022-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [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: 01/10/2019] [Accepted: 03/27/2019] [Indexed: 06/09/2023]
Abstract
Epoxiconazole (EPX) is a triazole fungicide commonly used in agriculture and for domestic purposes around the world. The excessive application of this pesticide may result in a variety of adverse effects on non-target organisms, including humans. Since, the liver and kidneys are the target organs of this fungicide, potential hepatotoxic and nephrotoxic effects are of high relevance. Thus, our study aimed to investigate the toxic effects of EPX on the liver and kidney of Wistar rats. The exposure of rats to EPX at these concentrations (8, 24, 40, 56 mg/kg bw representing, respectively, NOEL (no observed effect level), NOEL × 3, NOEL × 5, and NOEL × 7) for 28 days significantly enhances hepatic and renal lipid peroxidation which is accompanied by an increase in the level of protein oxidation. Furthermore, the results of the present study clearly indicated that EPX administration induces an increase in the levels of DNA damage in a dose-dependent manner. In addition, the activities of liver and kidney antioxidant enzymes such as superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), and glutathione S-transferase (GST) are increased significantly in EPX-treated rats at concentrations of 8, 24, and 40 mg/kg bw. However, with the dose NOEL × 7 (56 mg/kg bw of EPX), the activities of CAT, GPx, and GST are decreased. Indeed, EPX-intoxicated rats revealed a significant reduction in acetylcholinesterase (AChE) activity in both liver and kidney compared with the control group. Also, our results demonstrated that the EPX administration leads to a disruption of the hepatic (aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP), and lactate dehydrogenase (LDH)) and renal (uric acid and creatinine) functions. The biochemical perturbations obtained in the present study are corroborated with the histopathological modifications. Since EPX treatment caused severe damage in the overall histo-architecture of liver and kidney tissues, these results suggest that administration of EPX induced a marked deregulation of liver and kidney functions. Graphical abstract.
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Affiliation(s)
- Hiba Hamdi
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, University of Monastir, Rue Avicenne, 5000, Monastir, Tunisia
| | - Yosra Ben Othmène
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, University of Monastir, Rue Avicenne, 5000, Monastir, Tunisia
| | - Oumaima Ammar
- Laboratory of Histology and Cytogenetic (Research Unit of Genetic, Genotoxicity and Childhood Illness UR12ES10), Faculty of Medicine, University of Monastir, Street Avicenne, 5019, Monastir, Tunisia
| | - Aida Klifi
- Research Laboratory "Bioressources: Integrative Biology & Valorisation", University of Monastir, Street Avicenne, 5019, Monastir, Tunisia
| | - Elhem Hallara
- Laboratory of Biochemistry and Toxicology, Hospital of Monastir, Fattouma Bourguiba University, Monastir, Tunisia
| | - Faten Ben Ghali
- Laboratory of Biochemistry and Toxicology, Hospital of Monastir, Fattouma Bourguiba University, Monastir, Tunisia
| | - Zohra Houas
- Laboratory of Histology and Cytogenetic (Research Unit of Genetic, Genotoxicity and Childhood Illness UR12ES10), Faculty of Medicine, University of Monastir, Street Avicenne, 5019, Monastir, Tunisia
| | - Mohamec Fadhel Najjar
- Laboratory of Biochemistry and Toxicology, Hospital of Monastir, Fattouma Bourguiba University, Monastir, Tunisia
| | - Salwa Abid-Essefi
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, University of Monastir, Rue Avicenne, 5000, Monastir, Tunisia.
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Hamdi H, Ben Salem I, Ben Othmène Y, Annabi E, Abid-Essefi S. The involvement of ROS generation on Epoxiconazole-induced toxicity in HCT116 cells. Pestic Biochem Physiol 2018; 148:62-67. [PMID: 29891378 DOI: 10.1016/j.pestbp.2018.03.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 03/24/2018] [Accepted: 03/25/2018] [Indexed: 06/08/2023]
Affiliation(s)
- Hiba Hamdi
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, Avicenne Street, 5019 Monastir, Tunisia
| | - Intidhar Ben Salem
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, Avicenne Street, 5019 Monastir, Tunisia; Faculty of Medicine of Sousse, University of Sousse, Tunisia
| | - Yosra Ben Othmène
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, Avicenne Street, 5019 Monastir, Tunisia
| | - Emna Annabi
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, Avicenne Street, 5019 Monastir, Tunisia
| | - Salwa Abid-Essefi
- Laboratory for Research on Biologically Compatible Compounds, Faculty of Dental Medicine, Avicenne Street, 5019 Monastir, Tunisia.
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Kleib AS, Salihy SM, Hamdi H, Carron R, Soumaré O. A rare cause of thoracic spinal cord compression by multiple large Tarlov cysts. Neurochirurgie 2018. [DOI: 10.1016/j.neuchi.2018.05.066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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El bèze Rimasson D, Bouvet C, Hamdi H. La gestion des émotions et ses déficits, chez les personnes atteintes de douleur chronique : une revue systématisée des études relatives à l’alexithymie, à l’intelligence émotionnelle, à la régulation émotionnelle et au coping. Psychologie Française 2018. [DOI: 10.1016/j.psfr.2017.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Hamdi H, Majdoub-Mathlouthi L, Durand D, Thomas A, Kraiem K. Effects of olive-cake supplementation on fatty acid composition, antioxidant status and lipid and meat-colour stability of Barbarine lambs reared on improved rangeland plus concentrates or indoors with oat hay plus concentrates. Anim Prod Sci 2018. [DOI: 10.1071/an16352] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The effects of feeding system (indoor vs rangeland) and olive-cake (OC) supplementation (control vs supplemented) on fatty acid (FA) composition, lipid oxidation status and meat-colour stability were studied. Lambs were fed indoor with hay (OH) or reared on improved rangeland (RL). All lambs received concentrate at a rate of 400 g/head.day. Twenty-four 6-month-old Barbarine lambs with an average weight of 24.3 ± 1.1 kg were assigned into the following four groups: OH without OC, OH with OC, RL without OC and RL with OC. Supplemented groups received 280 g/day of OC. Lambs were reared for ~3 months and then slaughtered at 33 kg. Feeding lambs on rangeland increased proportions of polyunsaturated fatty acids (PUFA, P < 0.05), n-3 PUFA (P < 0.01) and long-chain n-3 PUFA (P < 0.01) and decreased those of C16:0 and monounsaturated fatty acids (P = 0.052). Higher PUFA : saturated FA (SFA) (P < 0.001) and lower n-6 : n-3 PUFA (P < 0.01) ratios were found for RL lambs. The peroxidisability index was higher (P = 0.024) for RL lambs. Whereas, a lower malondialdehyde concentration (P < 0.001) was found for meat of RL group after 5-day storage, because of a higher vitamin E concentration (P < 0.001) and catalase activity (P = 0.002). Moreover, colour was more stable for meat of RL lamb. OC supplementation reduced only superoxide dismutase activity (P = 0.033) and did not have any effect on lipid peroxidation and colour stability. No interactions were noted between the feeding system and olive-cake supplementation. Meat lambs produced on rangeland had a healthier fatty acid composition. Lipids were more stable to oxidation than was meat produced indoor with hay and concentrate.
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Hamdi H, Majdoub-Mathlouthi L, Picard B, Listrat A, Durand D, Znaïdi I, Kraiem K. Carcass traits, contractile muscle properties and meat quality of grazing and feedlot Barbarine lamb receiving or not olive cake. Small Rumin Res 2016. [DOI: 10.1016/j.smallrumres.2016.10.028] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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El-Bakry AM, Hamdi H. Fine structure of the dorsal lingual epithelium in Tarentola annularis and Crocodylus niloticus. Folia Morphol (Warsz) 2016; 75:162-172. [DOI: 10.5603/fm.a2015.0091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 07/21/2015] [Accepted: 08/18/2015] [Indexed: 11/25/2022]
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Ricordel C, Lespagnol A, Kerjouan M, Fievet A, De Tayrac M, Aliouat A, Hamdi H, Mosser J, Léna H. Mutation du gène DDR2 dans les carcinomes épidermoïdes bronchiques primitifs : analyse d’une cohorte rétrospective monocentrique. Rev Mal Respir 2016. [DOI: 10.1016/j.rmr.2015.10.678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Bertrand P, Grieten L, Smeets C, Verbrugge F, Mullens W, Vrolix M, Rivero-Ayerza M, Verhaert D, Vandervoort P, Tong L, Ramalli A, Tortoli P, D'hoge J, Bajraktari G, Lindqvist P, Henein M, Obremska M, Boratynska M, Kurcz J, Zysko D, Baran T, Klinger M, Darahim K, Mueller H, Carballo D, Popova N, Vallee JP, Floria M, Chistol R, Tinica G, Grecu M, Rodriguez Serrano M, Osa-Saez A, Rueda-Soriano J, Buendia-Fuentes F, Domingo-Valero D, Igual-Munoz B, Alonso-Fernandez P, Quesada-Carmona A, Miro-Palau V, Palencia-Perez M, Bech-Hanssen O, Polte C, Lagerstrand K, Janulewicz M, Gao S, Erdogan E, Akkaya M, Bacaksiz A, Tasal A, Sonmez O, Turfan M, Kul S, Vatankulu M, Uyarel H, Goktekin O, Mincu R, Magda L, Mihaila S, Florescu M, Mihalcea D, Enescu O, Chiru A, Popescu B, Tiu C, Vinereanu D, Broch K, Kunszt G, Massey R, De Marchi S, Aakhus S, Gullestad L, Urheim S, Yuan L, Feng J, Jin X, Bombardini T, Casartelli M, Simon D, Gaspari M, Procaccio F, Hasselberg N, Haugaa K, Brunet A, Kongsgaard E, Donal E, Edvardsen T, Sahin T, Yurdakul S, Cengiz B, Bozkurt A, Aytekin S, Cesana F, Spano' F, Santambrogio G, Alloni M, Vallerio P, Salvetti M, Carerj S, Gaibazzi N, Rigo F, Moreo A, Wdowiak-Okrojek K, Michalski B, Kasprzak J, Shim A, Lipiec P, Generati G, Pellegrino M, Bandera F, Donghi V, Alfonzetti E, Guazzi M, Marcun R, Stankovic I, Farkas J, Vlahovic-Stipac A, Putnikovic B, Kadivec S, Kosnik M, Neskovic A, Lainscak M, Iliuta L, Szymanski P, Lipczynska M, Klisiewicz A, Sobieszczanska-Malek M, Zielinski T, Hoffman P, Gjerdalen GF, Hisdal J, Solberg E, Andersen T, Radunovic Z, Steine K, Svanadze A, Poteshkina N, Krylova N, Mogutova P, Shim A, Kasprzak J, Szymczyk E, Wdowiak-Okrojek K, Michalski B, Stefanczyk L, Lipiec P, Benedek T, Matei C, Jako B, Suciu Z, Benedek I, Yaroshchuk NA, Kochmasheva VV, Dityatev VP, Kerbikov OB, Przewlocka-Kosmala M, Orda A, Karolko B, Mysiak A, Kosmala W, Rechcinski T, Wierzbowska-Drabik K, Lipiec P, Chmiela M, Kasprzak J, Aziz A, Hooper J, Rayasamudra S, Uppal H, Asghar O, Potluri R, Zaroui A, Mourali M, Rezine Z, Mbarki S, Jemaa M, Aloui H, Mechmeche R, Farhati A, Gripari P, Maffessanti F, Tamborini G, Muratori M, Fusini L, Vignati C, Bartorelli A, Alamanni F, Agostoni P, Pepi M, Ruiz Ortiz M, Mesa D, Delgado M, Seoane T, Carrasco F, Martin M, Mazuelos F, Suarez De Lezo Herreros De Tejada J, Romero M, Suarez De Lezo J, Brili S, Stamatopoulos I, Misailidou M, Chrisochoou C, Christoforatou E, Stefanadis C, Ruiz Ortiz M, Mesa D, Delgado M, Martin M, Seoane T, Carrasco F, Ojeda S, Segura J, Pan M, Suarez De Lezo J, Cammalleri V, Ussia G, Muscoli S, Marchei M, Sergi D, Mazzotta E, Romeo F, Igual Munoz B, Bel Minguez A, Perez Guillen M, Maceira Gonzalez A, Monmeneu Menadas J, Hernandez Acuna C, Estornell Erill J, Lopez Lereu P, Francisco Jose Valera Martinez F, Montero Argudo A, Sunbul M, Akhundova A, Sari I, Erdogan O, Mutlu B, Cacicedo A, Velasco Del Castillo S, Anton Ladislao A, Aguirre Larracoechea U, Rodriguez Sanchez I, Subinas Elorriaga A, Oria Gonzalez G, Onaindia Gandarias J, Laraudogoitia Zaldumbide E, Lekuona Goya I, Ding W, Zhao Y, Lindqvist P, Nilson J, Winter R, Holmgren A, Ruck A, Henein M, Attenhofer Jost CH, Soyka R, Oxenius A, Kretschmar O, Valsangiacomo Buechel E, Greutmann M, Weber R, Keramida K, Kouris N, Kostopoulos V, Karidas V, Damaskos D, Makavos G, Paraskevopoulos K, Olympios C, Eskesen K, Olsen N, Fritz-Hansen T, Sogaard P, Cameli M, Lisi M, Righini F, Curci V, Massoni A, Natali B, Maccherini M, Chiavarelli M, Massetti M, Mondillo S, Mabrouk Salem Omar A, Ahmed Abdel-Rahman M, Khorshid H, Rifaie O, Santoro C, Santoro A, Ippolito R, De Palma D, De Stefano F, Muscariiello R, Galderisi M, Squeri A, Censi S, Baldelli M, Grattoni C, Cremonesi A, Bosi S, Saura Espin D, Gonzalez Canovas C, Gonzalez Carrillo J, Oliva Sandoval M, Caballero Jimenez L, Espinosa Garcia M, Garcia Navarro M, Valdes Chavarri M, De La Morena Valenzuela G, Ryu S, Shin D, Son J, Choi J, Goh C, Choi J, Park J, Hong G, Sklyanna O, Yuan L, Yuan L, Planinc I, Bagadur G, Ljubas J, Baricevic Z, Skoric B, Velagic V, Bijnens B, Milicic D, Cikes M, Gospodinova M, Chamova T, Guergueltcheva V, Ivanova R, Tournev I, Denchev S, Ancona R, Comenale Pinto S, Caso P, Arenga F, Coppola M, Calabro R, Neametalla H, Boitard S, Hamdi H, Planat-Benard V, Casteilla L, Li Z, Hagege A, Mericskay M, Menasche P, Agbulut O, Merlo M, Stolfo D, Anzini M, Negri F, Pinamonti B, Barbati G, Di Lenarda A, Sinagra G, Stolfo D, Merlo M, Pinamonti B, Gigli M, Poli S, Porto A, Di Nora C, Barbati G, Di Lenarda A, Sinagra G, Coppola C, Piscopo G, Cipresso C, Rea D, Maurea C, Esposito E, Arra C, Maurea N, Nemes A, Kalapos A, Domsik P, Forster T, Voilliot D, Huttin O, Vaugrenard T, Schwartz J, Sellal JM, Aliot E, Juilliere Y, Selton-Suty C, Sanchez Millan PJ, Cabeza Lainez P, Castillo Ortiz J, Chueca Gonzalez E, Gheorghe L, Fernandez Garcia P, Herruzo Rojas M, Del Pozo Contreras R, Fernandez Garcia M, Vazquez Garcia R, Rosca M, Popescu B, Botezatu D, Calin A, Beladan C, Gurzun M, Enache R, Ginghina C, Farouk H, Al-Maimoony T, Alhadad A, El Serafi M, Abdel Ghany M, Poorzand H, Mirfeizi S, Javanbakht A, Tellatin S, Famoso G, Dassie F, Martini C, Osto E, Maffei P, Iliceto S, Tona F, Radunovic Z, Steine K, Jedrzejewska I, Braksator W, Krol W, Swiatowiec A, Sawicki J, Kostarska-Srokosz E, Dluzniewski M, Maceira Gonzalez AM, Cosin-Sales J, Diago J, Aguilar J, Ruvira J, Monmeneu J, Igual B, Lopez-Lereu M, Estornell J, Olszanecka A, Dragan A, Kawecka-Jaszcz K, Czarnecka D, Scholz F, Gaudron P, Hu K, Liu D, Florescu C, Herrmann S, Bijnens B, Ertl G, Stoerk S, Weidemann F, Krestjyaninov M, Razin V, Gimaev R, Bogdanovic Z, Burazor I, Deljanin Ilic M, Peluso D, Muraru D, Cucchini U, Mihaila S, Casablanca S, Pigatto E, Cozzi F, Punzi L, Badano L, Iliceto S, Zhdanova E, Rameev V, Safarova A, Moisseyev S, Kobalava Z, Magnino C, Omede' P, Avenatti E, Presutti D, Losano I, Moretti C, Bucca C, Gaita F, Veglio F, Milan A, Bellsham-Revell H, Bell A, Miller O, Simpson J, Hwang Y, Kim G, Jung M, Woo G, Driessen M, Leiner T, Schoof P, Breur J, Sieswerda G, Meijboom F, Bellsham-Revell H, Hayes N, Anderson D, Austin B, Razavi R, Greil G, Simpson J, Bell A, Zhao X, Xu X, Qin Y, Szmigielski CA, Styczynski G, Sobczynska M, Placha G, Kuch-Wocial A, Ikonomidis I, Voumbourakis A, Triantafyllidi H, Pavlidis G, Varoudi M, Papadakis I, Trivilou P, Paraskevaidis I, Anastasiou-Nana M, Lekakis I, Kong W, Yip J, Ling L, Milan A, Tosello F, Leone D, Bruno G, Losano I, Avenatti E, Sabia L, Veglio F, Zaborska B, Baran J, Pilichowska-Paszkiet E, Sikora-Frac M, Michalowska I, Kulakowski P, Budaj A, Mega S, Bono M, De Francesco V, Castiglione I, Ranocchi F, Casacalenda A, Goffredo C, Patti G, Di Sciascio G, Musumeci F, Kennedy M, Waterhouse D, Sheahan R, Foley D, Mcadam B, Ancona R, Comenale Pinto S, Caso P, Arenga F, Coppola M, Calabro R, Remme EW, Smedsrud MK, Hasselberg NE, Smiseth OA, Edvardsen T, Halmai L, Nemes A, Kardos A, Neubauer S, Degiovanni A, Baduena L, Dell'era G, Occhetta E, Marino P, Hotchi J, Yamada H, Nishio S, Bando M, Hayashi S, Hirata Y, Amano R, Soeki T, Wakatsuki T, Sata M, Lamia B, Molano L, Viacroze C, Cuvelier A, Muir J, Lipczynska M, Piotr Szymanski P, Anna Klisiewicz A, Lukasz Mazurkiewicz L, Piotr Hoffman P, Van 'T Sant J, Wijers S, Ter Horst I, Leenders G, Cramer M, Doevendans P, Meine M, Hatam N, Goetzenich A, Aljalloud A, Mischke K, Hoffmann R, Autschbach R, Sikora-Frac M, Zaborska B, Maciejewski P, Bednarz B, Budaj A, Evangelista A, Torromeo C, Pandian N, Nardinocchi P, Varano V, Schiariti M, Teresi L, Puddu P, Storve S, Dalen H, Snare S, Haugen B, Torp H, Fehri W, Mahfoudhi H, Mezni F, Annabi M, Taamallah K, Dahmani R, Haggui A, Hajlaoui N, Lahidheb D, Haouala H, Colombo A, Carminati M, Maffessanti F, Gripari P, Pepi M, Lang R, Caiani E, Walker J, Abadi S, Agmon Y, Carasso S, Aronson D, Mutlak D, Lessick J, Saxena A, Ramakrishnan S, Juneja R, Ljubas J, Reskovic Luksic V, Matasic R, Pezo Nikolic B, Lovric D, Separovic Hanzevacki J, Quattrone A, Zito C, Alongi G, Vizzari G, Bitto A, De Caridi G, Greco M, Tripodi R, Pizzino G, Carerj S, Ibrahimi P, Jashari F, Johansson E, Gronlund C, Bajraktari G, Wester P, Henein M, Kosmala W, Marwick T, Souza JRM, Zacharias LGT, Geloneze B, Pareja JC, Chaim A, Nadruz WJ, Coelho OR, Apostolovic S, Stanojevic D, Jankovic-Tomasevic R, Salinger-Martinovic S, Djordjevic-Radojkovic D, Pavlovic M, Tahirovic E, Musial-Bright L, Lainscak M, Duengen H, Filipiak D, Kasprzak J, Lipiec P. Poster session Wednesday 11 December all day display: 11/12/2013, 09:30-16:00 * Location: Poster area. Eur Heart J Cardiovasc Imaging 2013. [DOI: 10.1093/ehjci/jet202] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Khadra A, Pinelli E, Lacroix MZ, Bousquet-Melou A, Hamdi H, Merlina G, Guiresse M, Hafidi M. Assessment of the genotoxicity of quinolone and fluoroquinolones contaminated soil with the Vicia faba micronucleus test. Ecotoxicol Environ Saf 2012; 76:187-192. [PMID: 22047769 DOI: 10.1016/j.ecoenv.2011.10.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2011] [Revised: 10/07/2011] [Accepted: 10/08/2011] [Indexed: 05/31/2023]
Abstract
The genotoxicity of quinolone and fluroquinolones was assessed using the micronucleus (MN) test on Vicia faba roots by direct contact exposure to a solid matrix. Plants were exposed to quinolones (nalidixic acid) and fluoroquinolones (ciprofloxacin and enrofloxacin) alone or mixed with artificially contaminated soils. Four different concentrations of each of these antibiotics were tested (0.01, 0.1, 1 and 10 mg/Kg) for nalidixic acid and (0.005, 0.05, 0.5 and 5 mg/Kg) for ciprofloxacin and enrofloxacin. These antibiotics were also used in mixture. Exposure of Vicia faba plants to each antibiotic at the highest two concentrations showed significant MN induction. The lowest two concentrations had no significant genotoxic effect. The mixture of the three compounds induced a significant MN induction whatever the mixture tested, from 0.02 to 20 mg/Kg. The results indicated that a similar genotoxic effect was obtained with the mixture at 0.2 mg/Kg in comparison with each molecule alone at 5-10 mg/Kg. Data revealed a clear synergism of these molecules on Vicia faba genotoxicity.
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Affiliation(s)
- A Khadra
- Laboratoire d'Ecologie et Environnement-Unité Associée au CNRST, URAC 32, Unité Associée au CNERS, Département de Biologie, Faculté des Sciences Semlalia, Université Cadi Ayyad, BP 2390, Marrakech, Maroc
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Khadhar S, Higashi T, Hamdi H, Matsuyama S, Charef A. Distribution of 16 EPA-priority polycyclic aromatic hydrocarbons (PAHs) in sludges collected from nine Tunisian wastewater treatment plants. J Hazard Mater 2010; 183:98-102. [PMID: 20674166 DOI: 10.1016/j.jhazmat.2010.06.112] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2010] [Revised: 06/25/2010] [Accepted: 06/28/2010] [Indexed: 05/29/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are organic compounds which may be present as contaminants in wastewater sewage sludge. Due to their toxicity and persistence in the solid phase, information should be gathered relating to their presence in sewage sludge in order to determine their contamination risks after land application. In this study, sewage sludge samples from nine Tunisian wastewater treatment plants (WWTPs) were characterized for the total content in 16 EPA-priority PAHs using an optimized extraction protocol. These WWTPs differ in the type of applied treatment and the wastewater source. Through this first assessment of PAHs in Tunisian sludges, their total concentration varied from 96 to the highest level of 7718 ng g(-1). Regardless of the source of wastewater, the highest PAH content was found in sludges deriving from untreated wastewater (natural lagooning). In addition, some correlation was found between the distribution patterns of each PAH, the type of applied treatment on one hand and the wastewater source on other hand.
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Affiliation(s)
- S Khadhar
- Water Research and Technology Center, Borj Cédria Technopark, PO Box 273, Soliman 8020, Tunisia.
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Hamdi H, Abderrahim R, Meganem F. Spectroscopic studies of inclusion complex of beta-cyclodextrin and benzidine diammonium dipicrate. Spectrochim Acta A Mol Biomol Spectrosc 2010; 75:32-36. [PMID: 19879800 DOI: 10.1016/j.saa.2009.09.018] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2009] [Revised: 08/13/2009] [Accepted: 09/12/2009] [Indexed: 05/28/2023]
Abstract
Formation of inclusion complex between benzidine diammonium dipicrate and beta-cyclodextrin with stoichiometry 1:2 (guest-host) has been established by UV, (1)H NMR, (13)C NMR, IR spectra and powder X-ray diffractometry. (1)H NMR studies are used to confirm the inclusion and to provide information on the geometry of dipicrate inside the cavity of beta-cyclodextrin.
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Affiliation(s)
- H Hamdi
- Department of Chemistry, Faculty of Science of Bizerte, 7021 Jarzouna, Bizerte, Tunisie
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El Hajjouji H, Ait Baddi G, Yaacoubi A, Hamdi H, Winterton P, Revel JC, Hafidi M. Optimisation of biodegradation conditions for the treatment of olive mill wastewater. Bioresour Technol 2008; 99:5505-5510. [PMID: 18083025 DOI: 10.1016/j.biortech.2007.11.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2007] [Revised: 10/28/2007] [Accepted: 11/01/2007] [Indexed: 05/25/2023]
Abstract
The aim of the present paper was to optimise the conditions of aerobic treatment of olive mill wastewater. To do so, the waste was treated following the experimental optimal design methodology studying the set of factors susceptible to influence the treatment (pH, C/N ratio, aeration and temperature). The results of a first series of experiments showed a strong correlation between the reduction in the levels of polyphenols and three of the parameters studied, i.e. the C/N ratio, aeration and temperature. Optimised conditions led to a 94% drop in polyphenols. Then, for a finer study of the conditions, just two parameters were varied, the pH and the C/N ratio. The results showed that the conditions of pH modification (addition of lime or sodium hydroxide) and the C/N ratio (urea or ammonium nitrate) allowed the microbiological activity to be very significantly improved. This led to polyphenol reductions of 51% and 76%.
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Affiliation(s)
- H El Hajjouji
- Equipe d'Ecologie Végétale, Sol et Environnement, Département de Biologie, Faculté des Sciences Semlalia, Université Cadi Ayyad, BP 2390, Marrakech, Morocco
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Amir S, Hafidi M, Merlina G, Hamdi H, Revel JC. Fate of polycyclic aromatic hydrocarbons during composting of lagooning sewage sludge. Chemosphere 2005; 58:449-58. [PMID: 15620736 DOI: 10.1016/j.chemosphere.2004.09.039] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2004] [Revised: 09/13/2004] [Accepted: 09/21/2004] [Indexed: 05/23/2023]
Abstract
The fate of 16 polycyclic aromatic hydrocarbons (PAHs), targeted by the USEPA agency, has been investigated during composting of lagooning sludge. Composting shows efficient decrease of the content and the bioavailability of each PAH. Biodegradation and sorption are suggested as the main mechanisms contributing to this decrease. During the stabilization phase of composting, extensive microbial degradation of PAHs, mainly those with a low number of aromatic rings, was achieved following development of intense thermophilic communities. However, partial sorption of PAH to non-accessible sites temporarily limits the mobility mainly of PAHs with a high number of aromatic rings plus acenaphthene and acenaphthylene, and allows them to escape microbial attack. During the maturation phase, the development of a mesophilic population could play an important role in the degradation of the remaining PAH. During this phase of composting, PAH sequestration and binding of their oxidative metabolites within new-formed humic substances might also explain PAH decrease at the end of composting. The tendency of change of content or bioavailability of various PAH compounds during composting is found to be strongly related to the number of their aromatic rings, their molecular weight and structure.
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Affiliation(s)
- S Amir
- Unité Sol et Environnement (Lab. Eco. Végét.), Dépt. de Biologie. Faculté des Sciences Semlalia, BP/2390, Marrakech, Morocco
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Hamdi H, Nishio H, Zielinski R, Dugaiczyk A. Origin and phylogenetic distribution of Alu DNA repeats: irreversible events in the evolution of primates. J Mol Biol 1999; 289:861-71. [PMID: 10369767 DOI: 10.1006/jmbi.1999.2797] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Over the past 60 million years, or so, approximately one million copies of Alu DNA repeats have accumulated in the genome of primates, in what appears to be an ongoing process. We determined the phylogenetic distribution of specific Alu (and other) DNA repeats in the genome of several primates: human, chimpanzee, gorilla, orangutan, baboon, rhesus, and macaque. At the population level studied, the majority of the repeats was found to be fixed in the primate species. Our data suggest that new Alu elements arise in unique, irreversible events, in a mechanism that seems to preclude precise excision and loss. The same insertions did not arise independently in two species. Once inserted and genetically fixed, the DNA elements are retained in all descendant lineages. The irreversible expansion of Alu s introduces a vector of time into the evolutionary process, and provides realistic (rather than statistical) answers to questions on phylogenies. In contrast to point mutations, the present distribution of individual Alu s is congruent with just one phylogeny. We submit that only irreversible and taxonomically relevant events are at the molecular basis of evolution. Most point mutations do not belong to this category.
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Affiliation(s)
- H Hamdi
- Department of Biochemistry, University of California, Riverside, CA, 92521, USA
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Abstract
Our goal was to determine if the major endogenous vitreous matrix metalloproteinase (MMP-2) could digest known collagenous components of the vitreous body. Matrix metalloproteinase-2 and its associated inhibitors were isolated from porcine vitreous by affinity column chromatography. The inhibitors were inactivated by chemical modification with dithiothreitol and iodoacetamide. The latent MMP-2 was then activated with the organomercurial, p-aminophenyl mercuric acetate (APMA). Bovine vitreous fibrillar collagens (types II, V/XI and IX) were isolated by pepsin extraction and differential salt precipitation. Intact type IX collagen was purified by selective salt precipitation followed by ion exchange and size exclusion chromatography. These isolated collagens were incubated for 6 to 24 h with different concentrations of activated MMP-2, and the extent of collagen degradation was analyzed. Activated MMP-2 was also introduced into freshly isolated vitreous gels and the degree of liquefaction was determined. Our results showed that the activated MMP-2 has no apparent effect upon type II collagen but can degrade type V/XI collagen and type IX collagen fragments (COL2 and COL2 + COL3). In addition, when the type IX collagen was in the intact helical form, MMP-2 appeared to selectively digest alpha 3 (IX) chains. This suggested that vitreous MMP-2 preferentially cleaved certain vitreous collagen chains into large fragments rather than small peptides. MMP-2 also disrupted the vitreous gel in vitro, releasing proteins but not hexuronic acid or sulfated glycosaminoglycans into the liquefied supernatant. We conclude that MMP-2 activity should be considered as a potential mechanism of vitreous liquefaction that is seen in aging and various pathological states.
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Affiliation(s)
- D J Brown
- Department of Surgery, Cedars-Sinai Research Institute, Cedars-Sinai Medical Center, University of California at Los Angeles Medical School Affiliate 90048, USA
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Abstract
The vitreous is a gel-like connective tissue that undergoes liquefaction during aging and pathological processes. We isolated and characterized a degradative enzyme from the vitreous of different species and identified it to be matrix metalloproteinase-2 (MMP-2). This enzyme was found in a latent form and may be associated with endogenous inhibitors. Vitreous isolated from both non-diabetic and diabetic patients contained MMP-2 in the same concentrations. However, the diabetic samples had an additional gelatinase activity at 92 kDa which may be associated with a compromised vasculature. These results suggest that the normal human vitreous contains an endogenous MMP and the appearance of an additional activity is associated with pathologic conditions.
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Affiliation(s)
- D Brown
- Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, CA 90048
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Tabbane C, Orain-Belhassine MC, Kharrat H, Lakhoua R, Hamdi H, Bousnina S, Ben Ammar B. [Our dietetic protocol in the treatment of major forms of protein-calorie malnutrition in Tunisian children]. Tunis Med 1985; 63:555-8. [PMID: 3938580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Deneuville A, Bruyère J, Mini A, Hamdi H, Kahil H. Cellules solaires : quelques aspects des structures « Schottky » à base de silicium amorphe hydrogéné. ACTA ACUST UNITED AC 1980. [DOI: 10.1051/rphysap:01980001502023300] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Hamdi H, Üge KS. Suprascapuläre branchiogene ventriculoide Cyste. Virchows Arch 1935. [DOI: 10.1007/bf01889296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Hamdi H. Subepidermales Sarkoid. Virchows Arch 1935. [DOI: 10.1007/bf01889295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Hamdi H. Über den sog. Pflanzenkrebs und seine Metastasen und ihre Vergleichung mit den Tiergewächsen. Virchows Arch 1932. [DOI: 10.1007/bf01893038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Hamdi H. Endothelioma peritheliale Bulbi Pilorum. J Cancer Res Clin Oncol 1930. [DOI: 10.1007/bf01636848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Hamdi H, Reschad H. Über die Beziehungen der Acanthosis nigricans zu anderswertigen Epithelveränderungen und Teilnahme der Hautdrüsen bei dieser Krankheit. Virchows Arch 1927. [DOI: 10.1007/bf01889498] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Hamdi H, Halil T. Sarcoma idiopathicum multiplex pigmentosum (Kaposi) hämorrhagicum (Köbner) besser Perithelioma multiplex nodulosum cavernosum lymphangiectoides cutaneum. Virchows Arch 1927. [DOI: 10.1007/bf01889497] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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