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Fkiri A, Sellami B, Selmi A, Khazri A, Saidani W, Imen B, Sheehan D, Hamouda B, Smiri LS. Gold Octahedra nanoparticles (Au_ 0.03 and Au_ 0.045): Synthesis and impact on marine clams Ruditapes decussatus. Aquat Toxicol 2018; 202:97-104. [PMID: 30014987 DOI: 10.1016/j.aquatox.2018.07.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 07/03/2018] [Accepted: 07/04/2018] [Indexed: 06/08/2023]
Abstract
The increased use of gold nanoparticles (AuNPs) in several applications has led to a rise in concerns about their potential toxicity to aquatic organisms. In addition, toxicity of nanoparticles to aquatic organisms is related to their physical and chemical properties. In the present study, we synthesize two forms of gold octahedra nanoparticles (Au_0.03 and Au_0.045) in 1.3-propandiol with polyvinyl-pyrrolidone K30 (PVPK30) as capping agent using polyol process. Shape, size and optical properties of the particles could be tuned by changing the molar ratio of PVP K30 to metal salts. The anisotropy in nanoparticles shape shows strong localized surface plasmon resonance (SPR) in the near infrared region of the electromagnetic spectrum. Environmental impact of Oct-AuNPs was determined in the marine bivalve, Ruditapes decussatus exposed to different concentrations of Au_0.03 and Au_0.045. The dynamic light scattering showed the stability and resistance of Au_0.03 and Au_0.045 in the natural seawater. No significant modification in vg-like proteins, MDA level and enzymatic activities were observed in treated clams with Au_0.03 even at high concentration. In contrast, Au_0.045 induced superoxide dismutase (SOD), catalase (CAT), glutathione transferase (GST) activities, in a concentration dependent manner indicating defense against oxidative stress. Enhanced lipid peroxidation represented by malondialdehyde content confirmed oxidative stress of Au_0.045 at high concentration. These results highlight the importance of the physical form of nanomaterials on their interactions with marine organisms and provide a useful guideline for future use of Oct-AuNPs. In addition, Vitellogenin is shown not to be an appropriate biomarker for Oct-AuNPs contamination even at high concentration. We further show that Oct-AuNPs exhibit an important antioxidant response without inducing estrogenic disruption.
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Affiliation(s)
- Anis Fkiri
- Unité de Recherche Synthèse et Structure de Nanomatériaux UR11ES30, Université de Carthage. Faculté des Sciences de Bizerte, 7021 Jarzouna, Bizerte, Tunisie
| | - Badreddine Sellami
- National Institute of Marine Sciences and Technologies, Tabarka, Tunisia.
| | - Aymen Selmi
- Laboratoire matériaux organisation et propriétés (LMOP), Universite´ de Tunis El Manar, Campus Universitaire, 2092 El Manar, Tunis, Tunisia
| | - Abdelhafidh Khazri
- Faculté des Sciences de Bizerte, Laboratoire de Biosurveillance de l'Environnement (LBE), Unité d'Ecotoxicologie et d'Ecologie Côtiere (GREEC), Zarzouna-Bizerte, Tunisia
| | - Wiem Saidani
- Faculté des Sciences de Bizerte, Laboratoire de Biosurveillance de l'Environnement (LBE), Unité d'Ecotoxicologie et d'Ecologie Côtiere (GREEC), Zarzouna-Bizerte, Tunisia
| | - Bouzidi Imen
- Faculté des Sciences de Bizerte, Laboratoire de Biosurveillance de l'Environnement (LBE), Unité d'Ecotoxicologie et d'Ecologie Côtiere (GREEC), Zarzouna-Bizerte, Tunisia
| | - David Sheehan
- Environmental Research Institute and Department of Biochemistry, University College Cork, Cork, Ireland; Department of Arts and Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Beyrem Hamouda
- Faculté des Sciences de Bizerte, Laboratoire de Biosurveillance de l'Environnement (LBE), Unité d'Ecotoxicologie et d'Ecologie Côtiere (GREEC), Zarzouna-Bizerte, Tunisia
| | - Leila Samia Smiri
- Unité de Recherche Synthèse et Structure de Nanomatériaux UR11ES30, Université de Carthage. Faculté des Sciences de Bizerte, 7021 Jarzouna, Bizerte, Tunisie
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Abdelhafidh K, Badreddine S, Mezni A, Mouhamed D, Wiem S, Imen B, David S, Mahmoudi E, Hamouda B. Triangular gold nanoparticles modify shell characteristics and increase antioxidant enzyme activities in the clam Ruditapes decussatus. Biomarkers 2018; 23:580-588. [DOI: 10.1080/1354750x.2018.1463565] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Khazri Abdelhafidh
- Faculté des Sciences de Bizerte, Laboratoire de Biosurveillance de l'Environnement (LBE), Unité d'Ecotoxicologie et d'Ecologie Côtière (GREEC), Zarzouna–Bizerte, Tunisia
| | - Sellami Badreddine
- National Institute of Marine Sciences and Technologies, Tabarka, Tunisia
| | - Amine Mezni
- Department of Chemistry, Faculty of Sciences of Bizerte, Unit of Research 99/UR12-30, Jarzouna, Tunisia
- Department of Chemistry and Faculty of Science, Taif University, Taif, Saudi Arabia
| | - Dellali Mouhamed
- Department of Chemistry and Faculty of Science, Taif University, Taif, Saudi Arabia
| | - Saidani Wiem
- Faculté des Sciences de Bizerte, Laboratoire de Biosurveillance de l'Environnement (LBE), Unité d'Ecotoxicologie et d'Ecologie Côtière (GREEC), Zarzouna–Bizerte, Tunisia
| | - Bouzidi Imen
- Faculté des Sciences de Bizerte, Laboratoire de Biosurveillance de l'Environnement (LBE), Unité d'Ecotoxicologie et d'Ecologie Côtière (GREEC), Zarzouna–Bizerte, Tunisia
| | - Sheehan David
- Environmental Research Institute and Department of Biochemistry, University College Cork, Cork, Ireland
- Department of Arts and Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Ezzeddine Mahmoudi
- Faculté des Sciences de Bizerte, Laboratoire de Biosurveillance de l'Environnement (LBE), Unité d'Ecotoxicologie et d'Ecologie Côtière (GREEC), Zarzouna–Bizerte, Tunisia
| | - Beyrem Hamouda
- Faculté des Sciences de Bizerte, Laboratoire de Biosurveillance de l'Environnement (LBE), Unité d'Ecotoxicologie et d'Ecologie Côtière (GREEC), Zarzouna–Bizerte, Tunisia
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Abdelhafidh K, Ali M, Hassen K, Badreddine S, Jaume A, Sandra P, Ethel E, Damià B, Hamouda B, Ezzeddine M. Uptake and metabolism of carbamazepine (CBZ) by clam Ruditapes decussatus and its effects in biochemical responses. Xenobiotica 2017; 48:727-733. [DOI: 10.1080/00498254.2017.1354268] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Khazri Abdelhafidh
- Environmental Biomonitoring Laboratory (LBE), Faculty of Sciences of Bizerte, University of Carthage, Zarzouna, Tunisia,
| | - Mezni Ali
- Environmental Biomonitoring Laboratory (LBE), Faculty of Sciences of Bizerte, University of Carthage, Zarzouna, Tunisia,
| | - Khazri Hassen
- Laboratory of Methods and Techniques of Analysis (LMTA), National Institute of Research and Physico-chemical Analysis (INRAP) Technological Pole 2020, Sidi Thabet, Ariana, Tunisia,
| | - Sellami Badreddine
- Institut National des Sciences et Technologies de la Mer, Tabarka, Tunisia,
| | - Aceña Jaume
- Water and Soil Quality Research Group, Department of Environmental Chemistry, IDÆA-CSIC, Jordi, Girona, Barcelona, Spain, and
| | - Pérez Sandra
- Water and Soil Quality Research Group, Department of Environmental Chemistry, IDÆA-CSIC, Jordi, Girona, Barcelona, Spain, and
| | - Eljarrat Ethel
- Water and Soil Quality Research Group, Department of Environmental Chemistry, IDÆA-CSIC, Jordi, Girona, Barcelona, Spain, and
| | - Barceló Damià
- Water and Soil Quality Research Group, Department of Environmental Chemistry, IDÆA-CSIC, Jordi, Girona, Barcelona, Spain, and
- Catalan Institute for Water Research (ICRA), H2O Building, Scientific and Technological Park of the University of Girona, Girona, Spain
| | - Beyrem Hamouda
- Environmental Biomonitoring Laboratory (LBE), Faculty of Sciences of Bizerte, University of Carthage, Zarzouna, Tunisia,
| | - Mahmoudi Ezzeddine
- Environmental Biomonitoring Laboratory (LBE), Faculty of Sciences of Bizerte, University of Carthage, Zarzouna, Tunisia,
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Nasri A, Jouili S, Boufahja F, Hedfi A, Saidi I, Mahmoudi E, Aïssa P, Essid N, Hamouda B. Trophic restructuring (Wieser 1953) of free-living nematode in marine sediment experimentally enriched to increasing doses of pharmaceutical penicillin G. Ecotoxicology 2016; 25:1160-1169. [PMID: 27230096 DOI: 10.1007/s10646-016-1670-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/06/2016] [Indexed: 06/05/2023]
Abstract
Trophic structure of free living nematode from Bizerte lagoon was tested by a microcosmic study after 30 days of exposure with 5 increasing doses of pharmaceutical penicillin G (D1: 3 mg L(-1), D2: 30 mg L(-1), D3: 300 mg L(-1), D4: 600 mg L(-1), D5: 700 mg L(-1)). Results showed significant differences between nematode assemblages from undisturbed controls and those from penicillin G treatments. Selective deposit-feeders (1A) or nonselective deposit-feeders (1B), very abundant in the control microcosm, were significantly affected and their dominance declined significantly. Epistrate feeders (2A) were significantly gradual increase for all microcosms treated with penicillin G, appeared to be more tolerant to the antibiotic and to take advantage of the growing scarcity of other trophic groups. Compared to the control microcosms, omnivorous-carnivorous (2B) was found to be higher in all treated microcosms, with the exception of those treated with D5. Trophic index (Σθ(2)) was significantly reduced in all microcosms treated whereas trophic ratio 1B/2A appears to be insignificant.
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Affiliation(s)
- Ahmed Nasri
- Laboratory of Environment Biomonitoring, Faculty of Sciences of Bizerta (FSB), University of Carthage, 7021, Zarzouna, Bizerta, Tunisia.
| | - Soufiane Jouili
- Laboratory of Environment Biomonitoring, Faculty of Sciences of Bizerta (FSB), University of Carthage, 7021, Zarzouna, Bizerta, Tunisia
| | - Fehmi Boufahja
- Laboratory of Environment Biomonitoring, Faculty of Sciences of Bizerta (FSB), University of Carthage, 7021, Zarzouna, Bizerta, Tunisia
| | - Amor Hedfi
- Laboratory of Environment Biomonitoring, Faculty of Sciences of Bizerta (FSB), University of Carthage, 7021, Zarzouna, Bizerta, Tunisia
| | - Ibtihel Saidi
- Laboratory of Environment Biomonitoring, Faculty of Sciences of Bizerta (FSB), University of Carthage, 7021, Zarzouna, Bizerta, Tunisia
| | - Ezzeddine Mahmoudi
- Laboratory of Environment Biomonitoring, Faculty of Sciences of Bizerta (FSB), University of Carthage, 7021, Zarzouna, Bizerta, Tunisia
| | - Patricia Aïssa
- Laboratory of Environment Biomonitoring, Faculty of Sciences of Bizerta (FSB), University of Carthage, 7021, Zarzouna, Bizerta, Tunisia
| | - Naceur Essid
- Laboratory of Environment Biomonitoring, Faculty of Sciences of Bizerta (FSB), University of Carthage, 7021, Zarzouna, Bizerta, Tunisia
| | - Beyrem Hamouda
- Laboratory of Environment Biomonitoring, Faculty of Sciences of Bizerta (FSB), University of Carthage, 7021, Zarzouna, Bizerta, Tunisia
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Sellami B, Aouani I, Maalaoui A, Dellali M, Aïssa P, Touil S, Sheehan D, Mahmoudi E, Hamouda B. Effects of 2-(4-Methoxyphenyl)-5, 6-trimethylene-4H-1, 3, 2-oxathiaphosphorine-2-sulfide on biomarkers of Mediterranean clams Ruditapes decussatus. Ecotoxicol Environ Saf 2015; 120:263-269. [PMID: 26093108 DOI: 10.1016/j.ecoenv.2015.05.049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 01/22/2015] [Revised: 05/28/2015] [Accepted: 05/29/2015] [Indexed: 06/04/2023]
Abstract
The effects of exposure to a novel synthetic organophosphorus compound, 2-(4-Methoxyphenyl)-5, 6-trimethylene-4H-1, 3, 2-oxathiaphosphorine-2-sulfide (OMTOS) concentrations (Control=0, C1=0.01, C2=0.1, C3=1 and C4=10μg/L) were investigated in the clam Ruditapes decussatus. Vitellogenin (Vg)-like protein levels in haemolymph from males and females were investigated. Concentrations of 1μg/L and 10μg/L significantly decreased Vg levels in male haemolymph after 7 days, whereas significant variations were only found in females treated with 10μg/L. On the other hand, superoxide dismutase (SOD), catalase (CAT) and acetylcholinesterase activities (AChE) in whole soft tissue were measured after 2, 4 and 7 days of exposure to the same series of concentrations. After 2 days of exposure, 0.1, 1, and 10μg/L of OMTOS increased SOD activity significantly, but this decreased with 10μg/L after 4 and 7 days. No changes in CAT activity were observed after 2 days compared to controls. OMTOS significantly reduced AChE activity after 4 and 7 days in treated clams with the highest concentration 10μg/L, but it did not induce significant variations at the other concentrations tested. Our study demonstrates that OMTOS alters biochemical parameters in R. decussatus, even at low concentrations, and suggests differing modes of action of the contaminant. Using clams is a powerful tool to provide valuable insights into possible mechanisms of environmental toxicity of novel synthetic organic products both in non-target organisms and the marine ecosystem. Additionally, our results highlight that biomarker responses facilitate elucidation of putative mechanisms of action of OMTOS in non-target species.
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Affiliation(s)
- Badreddine Sellami
- Laboratory of Environment Biomonitoring, Coastal Ecology Unit, Faculty of Sciences of Bizerta, University of Carthage, 7021 Zarzouna, Tunisia
| | - Iyadh Aouani
- Laboratory of Heteroatom Organic Chemistry, Department of Chemistry, Faculty of Sciences of Bizerta, University of Carthage, 7021 Jarzouna, Tunisia.
| | - Aziza Maalaoui
- Laboratory of Environment Biomonitoring, Coastal Ecology Unit, Faculty of Sciences of Bizerta, University of Carthage, 7021 Zarzouna, Tunisia
| | - Mohamed Dellali
- Laboratory of Environment Biomonitoring, Coastal Ecology Unit, Faculty of Sciences of Bizerta, University of Carthage, 7021 Zarzouna, Tunisia
| | - Patricia Aïssa
- Laboratory of Environment Biomonitoring, Coastal Ecology Unit, Faculty of Sciences of Bizerta, University of Carthage, 7021 Zarzouna, Tunisia
| | - Soufiane Touil
- Laboratory of Heteroatom Organic Chemistry, Department of Chemistry, Faculty of Sciences of Bizerta, University of Carthage, 7021 Jarzouna, Tunisia
| | - David Sheehan
- Environmental Research Institute and School of Biochemistry and Cell Biology, University College Cork, Western Gateway Building, Western Road, Cork, Ireland
| | - Ezzeddine Mahmoudi
- Laboratory of Environment Biomonitoring, Coastal Ecology Unit, Faculty of Sciences of Bizerta, University of Carthage, 7021 Zarzouna, Tunisia
| | - Beyrem Hamouda
- Laboratory of Environment Biomonitoring, Coastal Ecology Unit, Faculty of Sciences of Bizerta, University of Carthage, 7021 Zarzouna, Tunisia
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Sellami B, Khazri A, Louati H, Dellali M, Driss MR, Aïssa P, Mahmoudi E, Hamouda B, Coelho AV, Sheehan D. Effects of anthracene on filtration rates, antioxidant defense system, and redox proteomics in the Mediterranean clam Ruditapes decussatus (Mollusca: Bivalvia). Environ Sci Pollut Res Int 2015; 22:10956-10968. [PMID: 25779113 DOI: 10.1007/s11356-015-4328-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Accepted: 03/05/2015] [Indexed: 06/04/2023]
Abstract
This study aimed at analyzing the impact of a toxic polyaromatic hydrocarbon (PAH), anthracene (ANT), on Ruditapes decussatus collected from a Tunisian coastal lagoon (Bizerte Lagoon). Filtration rates, several antioxidant enzymes--superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione reductase (GR), and glutathione transferase (GST)--as well as indices of protein oxidation status were determined in various tissues of this bivalve. Specimens were exposed to 100 μg/L of ANT for 2 days. ANT levels were evaluated using HPLC and were detected in the gill and digestive gland at different amounts. ANT exposure altered the behavior of bivalves by changing the siphon movement and decreasing filtration rate significantly. The enzymatic results indicated that ANT exposure affected the oxidative stress status of the gills of R. decussatus. In addition, modification of proteins was detected in the gills using redox proteomics after ANT treatment. Three protein spots were successfully identified by matrix-assisted laser desorption/ionization tandem time-of-flight mass spectrometry (MALDI-TOF-MS). These proteins can be roughly related to muscle contraction function. In contrast, no significant modification of enzymatic and protein responses was detected in the digestive gland after ANT treatment. These data demonstrate that combined behavioral and biochemical analyses are a powerful tool to provide valuable insights into possible mechanisms of toxicity of anthracene in R. decussatus. Additionally, the results highlight the potential of the gill as a valuable candidate for investigating PAH toxicity.
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Affiliation(s)
- Badreddine Sellami
- Laboratory of Environment Biomonitoring, Coastal Ecology Unit, Faculty of Sciences of Bizerta, University of Carthage, 7021, Zarzouna, Tunisia,
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Baizig Nehla M, Hamouda B, Asma K, Farhat BA, Abderahmen L, Omrane BH, Ahmed EM. [In situ hybridization in undifferentiated nasopharynx carcinoma in Tunisia. Report of 3 cases]. Tunis Med 2001; 79:544-7. [PMID: 11910697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
The undifferentiated carcinoma of nasopharyngeal type (UCNT) is highly prevalent in South East Asia countries and has intermediate incidence in Tunisia, where Epstein-Barr virus constitutes one of the key factors of oncogenesis. Our preliminary results, in 3 patients with UCNT, show an elevated rate of EBV antibodies and a latent infection (type II) (expression of LMP and absence of ZEBRA by immunohistochemical reaction) and a positive staining with EBERs probe by in situ hybridation (ISH) in all cases. These results confirm a close association between EBV and tunisian UCNT. Moreover, the use of HIS technique for detection of EBERs constitutes an additional and formal argument of this association.
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Chechia A, Koubâa A, Makhlouf T, Anis B, Terras K, Hamouda B, Mezni F. [Molar pregnancy. Retrospective study of 60 cases in Tunisia]. Tunis Med 2001; 79:441-6. [PMID: 11774786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
To identify the epidemiologic, clinical end therapeutic particularities of molar pregnancies in Tunisia. A retrospective study of 60 cases of molar pregnancy Diagnosis of MP was base on elevated urine HCG level and/or histologic examination of uterine revision done for all patients. The incidence of MP is 1/793(60/47624) pregnancies. The mean age of patients was 31.7 years and 16 patients had more than 35 years. The metrorragia is the main symptom (91.6%). Excessive uterine enlargement and lutein ovarian cysts were observed respectively in 57 and 6.6% of cases. Human chorionic gonadotropin level was upper than 50,000 UI/l in 91.4% of cases. Ultrasonography contributed to diagnosis in 82.8% of cases. Histological findings were complete molar in 33 cases and partial molar in 27 cases. 6 of 33 patients having complete molar developed persistent gestational trophoblastic tumor. Actinomycin D induced complete remission in all cases. Molar pregnancy is a relatively common disease in Tunisia. Careful and reliable human chorionic gonadotropin monitoring is essential for the early detection of post molar persistent gestational trophoblastic tumor.
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Affiliation(s)
- A Chechia
- Service de gynécologie obstétrique A Hôpital Charles Nicolle, Tunis
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Hamouda B, Jamila Z, Najet R, Slim T, Rafiaa N, Noureddine B, Ahmed EM, Mohamed F, Ridha KM, Abderrahman L. Topical 5-fluorouracil to treat multiple or unresectable facial squamous cell carcinomas in xeroderma pigmentosum. J Am Acad Dermatol 2001; 44:1054. [PMID: 11369927 DOI: 10.1067/mjd.2001.113476] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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