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Chebieb I, Medjati ND, Harek Y, Guermouche B, Dali-Sahi M, Kachekouche Y, Benosman C. Imbalance of Plasma Copper and Zinc Levels and the Association Between the Cu/Zn Ratio and Lipid Peroxidation in Algerian Bipolar Patients. Biol Trace Elem Res 2024; 202:2450-2456. [PMID: 37725315 DOI: 10.1007/s12011-023-03858-y] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 09/11/2023] [Indexed: 09/21/2023]
Abstract
Trace elements, through their interaction with biomolecules, can play an important role in the pathophysiology of bipolar disorder and protect against oxidative stress effects. The purpose of this study is to examine plasma concentration levels of zinc (Zn) and copper (Cu) of Algerian patients, diagnosed with bipolar disorder, and to compare these levels with those of healthy controls. The Cu/Zn ratio was calculated to explore a possible correlation between these elements and lipid peroxidation in the study groups. A total of 33 patients diagnosed with bipolar disorder and 38 healthy subjects participated in this study. Plasma copper and zinc concentrations were measured using a polarographic analyzer. The marker of plasma lipid peroxidation (Malondialdehyde: MDA) was determined by UV spectrophotometry. Plasma Cu concentrations were higher in patients compared to controls (p < 0.05), while the Zn level was significantly lower. Consequently, the Cu/Zn ratio was significantly different between patients and controls. Regarding MDA, no significant difference was noticed between the two study groups. However, in patients, a negative correlation was found between MDA and Cu/Zn ratio (r= -0.38, p= 0.027). These results suggested that an elevated Cu/Zn ratio is associated with attenuated lipid peroxidation in our bipolar patients.
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Affiliation(s)
- Ikram Chebieb
- Analytical Chemistry and Electrochemistry Laboratory, Department of Biology, University of Abou Bekr Belkaïd, 13,000, Tlemcen, Algeria.
| | - Nouria Dennouni Medjati
- Analytical Chemistry and Electrochemistry Laboratory, Department of Biology, University of Abou Bekr Belkaïd, 13,000, Tlemcen, Algeria
| | - Yahia Harek
- Analytical Chemistry and Electrochemistry Laboratory, Department of Chemistry, University of Abou Bekr Belkaïd, 13,000, Tlemcen, Algeria
| | - Baya Guermouche
- Physiology, Physiopathology and Biochemistry of Nutrition Laboratory, Department of Biology, University of Abou Bekr Belkaïd, 13,000, Tlemcen, Algeria
| | - Majda Dali-Sahi
- Analytical Chemistry and Electrochemistry Laboratory, Department of Biology, University of Abou Bekr Belkaïd, 13,000, Tlemcen, Algeria
| | - Youssouf Kachekouche
- Analytical Chemistry and Electrochemistry Laboratory, Department of Biology, University of Hassiba Benbouali, 02,000, Chlef, Algeria
| | - Cherifa Benosman
- Division of Adults, Hospital Center of Rouvray, 76,600, Rouen, France
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Benslama Y, Dennouni-Medjati N, Dali-Sahi M, Meziane FZ, Harek Y. Childhood type 1 diabetes mellitus and risk factor of interactions between dietary cow's milk intake and HLA-DR3/DR4 genotype. J Biomol Struct Dyn 2022; 40:10931-10939. [PMID: 34282715 DOI: 10.1080/07391102.2021.1953599] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Short-term breastfeeding and early exposure to dairy products into infant diets, may be critical factors for development of type 1 diabetes. In this study, we investigate whether cow's milk proteins are risk factors for type 1 diabetes in genetically susceptible individuals (HLA DR3/DR4) by using statistical analysis and in silico approach. In order to verify the potential risk of the early introduction of cow's milk, we conducted this study to validate the veracity of this hypothesis in our population. We included 121 subjects, 55 type 1 diabetics and 74 controls from the region of Tlemcen (Algeria). Thus, the in silico approach was performed to determine the molecular mimicry region between Bovine serum albumin and beta-lactoglobulin with self-Islet antigen 2 and glutamate decarboxylase 65 by determining their sequences and their 3D structures. The risk factors associated with type 1 diabetes in a genetically predisposed individual (HLA DR3/DR4) retained by the logistic model are: type 1 and type 2 diabetes inheritance, the early introduction of cow's milk before 6 months and breastfeeding less than 9 months. Besides, the epitopes of cow's milk proteins have the capacity to bind to predisposing HLA class II molecules (HLA DR3/DR4) and induce an immune reaction by the secretion of Interleukin 4 (Th2) and Interferon (Th1) which lead to the destruction of pancreatic beta cells. The early introduction of cow's milk proteins in susceptible individuals is considered as risk factors for the pathogenesis of T1DM. The in silico approach confirm that BSA and BLG share sequence and structure homology with IA2 and GAD65.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Yasmine Benslama
- Laboratory of Analytical Chemistry and Electrochemistry, Abou Bekr Belkaid University of Tlemcen, Tlemcen, Algeria
| | - Nouria Dennouni-Medjati
- Laboratory of Analytical Chemistry and Electrochemistry, Abou Bekr Belkaid University of Tlemcen, Tlemcen, Algeria
| | - Majda Dali-Sahi
- Laboratory of Analytical Chemistry and Electrochemistry, Abou Bekr Belkaid University of Tlemcen, Tlemcen, Algeria
| | - Fatima Zahra Meziane
- Laboratory of Analytical Chemistry and Electrochemistry, Abou Bekr Belkaid University of Tlemcen, Tlemcen, Algeria
| | - Yahia Harek
- Laboratory of Analytical Chemistry and Electrochemistry, Abou Bekr Belkaid University of Tlemcen, Tlemcen, Algeria
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Kazi Tani LS, Gourlan AT, Dennouni-Medjati N, Telouk P, Dali-Sahi M, Harek Y, Sun Q, Hackler J, Belhadj M, Schomburg L, Charlet L. Copper Isotopes and Copper to Zinc Ratio as Possible Biomarkers for Thyroid Cancer. Front Med (Lausanne) 2021; 8:698167. [PMID: 34568365 PMCID: PMC8455850 DOI: 10.3389/fmed.2021.698167] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 08/09/2021] [Indexed: 11/24/2022] Open
Abstract
Thyroid cancer is the most common endocrine cancer. There is no systematic screening for such cancer, and the current challenge is to find potential biomarkers to facilitate an early diagnosis. Copper (Cu) and zinc (Zn) are essential micronutrients involved in the proper functioning of the thyroid gland, and changes in their concentrations have been observed in the development of cancer. Previous studies have highlighted the potential 65Cu/63Cu ratio (δ65Cu) to be a cancer biomarker. This study tests its sensitivity on plasma samples (n = 46) of Algerian patients with papillary thyroid carcinoma and a set of corresponding biopsies (n = 11). The δ65Cu ratio in blood and tumor samples was determined using multi collector inductively coupled plasma-mass spectrometry (MC-ICP-MS), and their corresponding Cu and Zn plasma total concentrations using total reflection X-ray fluorescence (TXRF). Plasma concentrations of Cu were significantly higher (1346.1 ± 328.3 vs. 1060.5 ± 216.1 μg/L, p < 0.0001), and Zn significantly lower (942.1 ± 205.2 vs. 1027.9 ± 151.4 μg/L, p < 0.05) in thyroid cancer patients as compared to healthy controls (n = 50). Accordingly, the Cu/Zn ratio was significantly different between patients and controls (1.5 ± 0.4 vs. 1.0 ± 0.3, p < 0.0001). Furthermore, the δ65Cu plasma levels of patients were significantly lower than healthy controls (p < 0.0001), whereas thyroid tumor tissues presented high δ65Cu values. These results support the hypothesis that Cu isotopes and plasma trace elements may serve as suitable biomarkers of thyroid cancer diagnosis.
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Affiliation(s)
- Latifa Sarra Kazi Tani
- Analytical Chemistry and Electrochemistry Laboratory, University of Abou Bekr Belkaid, Tlemcen, Algeria.,ISTerre: Institut des Sciences de la Terre, Université Grenoble-Alpes, Université de Savoie Mont-Blanc, CNRS, IRD, IFSTTAR, Grenoble, France
| | - Alexandra T Gourlan
- ISTerre: Institut des Sciences de la Terre, Université Grenoble-Alpes, Université de Savoie Mont-Blanc, CNRS, IRD, IFSTTAR, Grenoble, France
| | - Nouria Dennouni-Medjati
- Analytical Chemistry and Electrochemistry Laboratory, University of Abou Bekr Belkaid, Tlemcen, Algeria
| | - Philippe Telouk
- Ecole Normale Superieure de Lyon, Centre National de la Recherche Scientifique, Université Claude Bernard Lyon 1, Lyon, France
| | - Majda Dali-Sahi
- Analytical Chemistry and Electrochemistry Laboratory, University of Abou Bekr Belkaid, Tlemcen, Algeria
| | - Yahia Harek
- Analytical Chemistry and Electrochemistry Laboratory, University of Abou Bekr Belkaid, Tlemcen, Algeria
| | - Qian Sun
- Institute for Experimental Endocrinology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Julian Hackler
- Institute for Experimental Endocrinology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Moussa Belhadj
- Analytical Chemistry and Electrochemistry Laboratory, University of Abou Bekr Belkaid, Tlemcen, Algeria
| | - Lutz Schomburg
- Institute for Experimental Endocrinology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Laurent Charlet
- ISTerre: Institut des Sciences de la Terre, Université Grenoble-Alpes, Université de Savoie Mont-Blanc, CNRS, IRD, IFSTTAR, Grenoble, France
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Belhadj M, Kazi Tani LS, Dennouni Medjati N, Harek Y, Dali Sahi M, Sun Q, Heller R, Behar A, Charlet L, Schomburg L. Se Status Prediction by Food Intake as Compared to Circulating Biomarkers in a West Algerian Population. Nutrients 2020; 12:nu12123599. [PMID: 33255224 PMCID: PMC7760749 DOI: 10.3390/nu12123599] [Citation(s) in RCA: 6] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 11/15/2020] [Accepted: 11/20/2020] [Indexed: 02/06/2023] Open
Abstract
Algeria is the largest country in Africa, located close to the Mediterranean coastal area, where nutrients consumption varies widely. Local data on selenium composition of foods are not available. We postulated a close correlation between selenium status predictions from food consumption analysis with a quantitative analysis of circulating biomarkers of selenium status. Population characteristics were recorded from 158 participants and dietary selenium intake was calculated by 24-h recall. The average total plasma selenium was 92.4 ± 18.5 µg/L and the mean of selenium intake was 62.7 µg/day. The selenoprotein P concentration was 5.5 ± 2.0 mg/L and glutathione peroxidase 3 activity was 247.3 ± 41.5 U/L. A direct comparison of the dietary-derived selenium status to the circulating selenium biomarkers showed no significant interrelation. Based on absolute intakes of meat, potato and eggs, a model was deduced that outperforms the intake composition-based prediction from all food components significantly (DeLong’s test, p = 0.029), yielding an area under the curve of 82%. Selenium status prediction from food intake remains a challenge. Imprecision of survey method or information on nutrient composition makes extrapolating selenium intake from food data providing incorrect insights into the nutritional status of a given population, and laboratory analyses are needed for reliable information.
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Affiliation(s)
- Moussa Belhadj
- Analytical Chemistry and Electrochemistry Laboratory, Abou Bekr Belkaid University of Tlemcen, BP 119, 13000 Tlemcen, Algeria; (L.S.K.T.); (N.D.M.); (Y.H.); (M.D.S.); (A.B.)
- Correspondence: (M.B.); (L.S.); Tel.: +21-367-539-7772 (M.B.); +49-30-450-524-289 (L.S.); Fax: +49-30-450-922 (L.S.)
| | - Latifa Sarra Kazi Tani
- Analytical Chemistry and Electrochemistry Laboratory, Abou Bekr Belkaid University of Tlemcen, BP 119, 13000 Tlemcen, Algeria; (L.S.K.T.); (N.D.M.); (Y.H.); (M.D.S.); (A.B.)
- Institute of Earth Science, University of Grenoble-Alpes and CNRS, BP 53, CEDEX 9, 38041 Grenoble, France;
| | - Nouria Dennouni Medjati
- Analytical Chemistry and Electrochemistry Laboratory, Abou Bekr Belkaid University of Tlemcen, BP 119, 13000 Tlemcen, Algeria; (L.S.K.T.); (N.D.M.); (Y.H.); (M.D.S.); (A.B.)
| | - Yahia Harek
- Analytical Chemistry and Electrochemistry Laboratory, Abou Bekr Belkaid University of Tlemcen, BP 119, 13000 Tlemcen, Algeria; (L.S.K.T.); (N.D.M.); (Y.H.); (M.D.S.); (A.B.)
| | - Majda Dali Sahi
- Analytical Chemistry and Electrochemistry Laboratory, Abou Bekr Belkaid University of Tlemcen, BP 119, 13000 Tlemcen, Algeria; (L.S.K.T.); (N.D.M.); (Y.H.); (M.D.S.); (A.B.)
| | - Qian Sun
- Institute for Experimental Endocrinology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Augustenburger Platz 1, CVK, D-13353 Berlin, Germany; (Q.S.); (R.H.)
| | - Raban Heller
- Institute for Experimental Endocrinology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Augustenburger Platz 1, CVK, D-13353 Berlin, Germany; (Q.S.); (R.H.)
| | - Ammaria Behar
- Analytical Chemistry and Electrochemistry Laboratory, Abou Bekr Belkaid University of Tlemcen, BP 119, 13000 Tlemcen, Algeria; (L.S.K.T.); (N.D.M.); (Y.H.); (M.D.S.); (A.B.)
| | - Laurent Charlet
- Institute of Earth Science, University of Grenoble-Alpes and CNRS, BP 53, CEDEX 9, 38041 Grenoble, France;
| | - Lutz Schomburg
- Institute for Experimental Endocrinology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Augustenburger Platz 1, CVK, D-13353 Berlin, Germany; (Q.S.); (R.H.)
- Correspondence: (M.B.); (L.S.); Tel.: +21-367-539-7772 (M.B.); +49-30-450-524-289 (L.S.); Fax: +49-30-450-922 (L.S.)
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Meziane FZ, Dali-Sahi M, Dennouni-Medjati N, Boulenouar H, Kachekouche Y, Benslama Y, Harek Y. Molecular mimicry between varicella, measles virus and Hsp60 in type 1 diabetes associated HLA-DR3/DR4 molecules. Diabetes Metab Syndr 2020; 14:1783-1789. [PMID: 32947109 DOI: 10.1016/j.dsx.2020.08.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 10/23/2019] [Revised: 08/05/2020] [Accepted: 08/11/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND AIMS Type 1 diabetes (T1D) is a multifactorial autoimmune disease that combines genetics and environmental factors. The aim of this study is to determine the environmental risk factors and to investigate how virals infections are risks factors for type 1 diabetics whom have HLA DR3/DR4 predisposition in our population. METHODS This study includes 233 subjects, 145 diabetics and 88 controls from regions of the extreme western of Algeria. All the informations related to the disease were collected using predesigned questionnaire. Using in silico approach, we attempt to improve the understanding of this analytical result by molecular mimicry, which is associated with the breakdown of several autoimmune pathologies. RESULTS The statistical study showed that history of varicella and measles infection and T1D related inheritance and type 2 diabetes are risk factors for T1D in the population of Tlemcen. We have determined the homologous antigenic regions between the glycoprotein "gE" of the varicella virus, the "hemagglutinin" of measles and the human protein "HSP60" at the level of their sequence and 3D structure. These cross-reactive epitopes bind to MHC class II molecules (HLA DR3/DR4) that predispose to T1D but not to MHC class II molecules (HLA DR2) that protect against T1D. This epitopes induce Th2 cells but only "hemagglutinin" and "Hsp60" can activate Th1 differentiation. This indicates their potential to destroy pancreatic cells β. CONCLUSION Our study can allow us to adapt biological markers to genetically predisposed T1D and to establish a preventive strategy for healthy genetic predisposed individuals in Tlemcen population.
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Affiliation(s)
- Fatima Zohra Meziane
- Department of Biology, Laboratory of Analytical Chemistry and Electrochemistry, Unviversity of Tlemcen, Algeria.
| | - Majda Dali-Sahi
- Department of Biology, Laboratory of Analytical Chemistry and Electrochemistry, Unviversity of Tlemcen, Algeria
| | - Nouria Dennouni-Medjati
- Department of Biology, Laboratory of Analytical Chemistry and Electrochemistry, Unviversity of Tlemcen, Algeria
| | | | - Youssouf Kachekouche
- Department of Biology, Laboratory of Analytical Chemistry and Electrochemistry, Unviversity of Tlemcen, Algeria
| | - Yasmine Benslama
- Department of Biology, Laboratory of Analytical Chemistry and Electrochemistry, Unviversity of Tlemcen, Algeria
| | - Yahia Harek
- Department of Biology, Laboratory of Analytical Chemistry and Electrochemistry, Unviversity of Tlemcen, Algeria
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Behar A, Dennouni-Medjati N, Harek Y, Dali-Sahi M, Belhadj M, Meziane FZ. Selenium overexposure induces insulin resistance: In silico study. Diabetes Metab Syndr 2020; 14:1651-1657. [PMID: 32898742 DOI: 10.1016/j.dsx.2020.08.005] [Citation(s) in RCA: 6] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 08/04/2020] [Accepted: 08/05/2020] [Indexed: 11/21/2022]
Abstract
BACKGROUND AND AIMS Several studies raise concerns about the possible association of high selenium exposure with insulin resistance and type 2 diabetes. This in silico study proposes a possible mechanism of insulin resistance in the case of overexposure to selenium. METHOD A study was carried out using molecular modeling, where cysteines of the insulin-receptor are replaced by selenocysteines. Calculation of the interaction energy of the receptor was performed in both cases with Auto Dock Tools and Vina 4.2 software to predict whether the substitution of amino acid could lead to destabilization of the protein-ligand complex and therefore possibly insulin resistance. Finally, the docked complex was analyzed by using BIOVIA Discovery Studio Visualizer to show the type of interactions between the ligands and insulin-receptor, and to determine the distance of the ligands from the binding site on insulin-receptor. RESULTS The results show that the substitution of cysteine by selenocysteine in the insulin receptor does not lead to stabilization of the complex receptor/insulin, but to its disruption.In addition, the types and the number of bonds between insulin and its receptor in the two cases are different, where 7 strong bonds between insulin and its receptor were found in the case of the cysteine complex compared to 6 weak bonds in the second case. CONCLUSION Findings of this study suggest that misincorporation of selenocysteines in insulin receptor could lead to destabilization of the insulin-receptor complex and therefore may possibly cause an insulin resistance.
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Affiliation(s)
- Ammaria Behar
- Aboubekr Belkaid University of Tlemcen, Analytical Chemistry and Electrochemistry Laboratory, Tlemcen 13000, Algeria.
| | - Nouria Dennouni-Medjati
- Aboubekr Belkaid University of Tlemcen, Analytical Chemistry and Electrochemistry Laboratory, Tlemcen 13000, Algeria.
| | - Yahia Harek
- Aboubekr Belkaid University of Tlemcen, Analytical Chemistry and Electrochemistry Laboratory, Tlemcen 13000, Algeria.
| | - Majda Dali-Sahi
- Aboubekr Belkaid University of Tlemcen, Analytical Chemistry and Electrochemistry Laboratory, Tlemcen 13000, Algeria.
| | - Moussa Belhadj
- Aboubekr Belkaid University of Tlemcen, Analytical Chemistry and Electrochemistry Laboratory, Tlemcen 13000, Algeria.
| | - Fatima Zahra Meziane
- Aboubekr Belkaid University of Tlemcen, Analytical Chemistry and Electrochemistry Laboratory, Tlemcen 13000, Algeria.
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Behar A, Dennouni-Medjati N, Dali-Sahi M, Harek Y, Belhadj M, Benslama Y, Kachecouche Y. Dietary selenium intake and risk of type 2 diabetes in a female population of western Algeria. NUTR CLIN METAB 2020. [DOI: 10.1016/j.nupar.2020.04.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Ichchou I, Larabi L, Rouabhi H, Harek Y, Fellah A. Electrochemical evaluation and DFT calculations of aromatic sulfonohydrazides as corrosion inhibitors for XC38 carbon steel in acidic media. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.126898] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Ammaria B, dennouni N, Dali-Sahi M, benslama Y, belhadj M, kachecouche Y, Harek Y. Apport alimentaire du sélénium chez des diabètiques de type 1 de la ville de Tlemcen (extrême ouest Algérien). NUTR CLIN METAB 2019. [DOI: 10.1016/j.nupar.2019.01.321] [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: 11/26/2022]
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Nabbou N, Belhachemi M, Boumelik M, Merzougui T, Lahcene D, Harek Y, Zorpas AA, Jeguirim M. Removal of fluoride from groundwater using natural clay (kaolinite): Optimization of adsorption conditions. CR CHIM 2019. [DOI: 10.1016/j.crci.2018.09.010] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Ahmed YB, Merzouk H, Harek Y, Medjdoub A, Cherrak S, Larabi L, Narce M. In vitro effects of nickel (II) and copper (II) complexes with 2,5-bis(2-pyridyl)-1,3,4-thiadiazole on T lymphocyte proliferation and intracellular redox status. Med Chem Res 2014. [DOI: 10.1007/s00044-014-1115-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [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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Attar T, Harek Y, Larabi L. Determination of Ultra Trace Levels of Copper in Whole Blood by Adsorptive Stripping Voltammetry. Journal of the Korean Chemical Society 2013. [DOI: 10.5012/jkcs.2013.57.5.568] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Ouici HB, Benali O, Harek Y, Larabi L, Hammouti B, Guendouzi A. The effect of some triazole derivatives as inhibitors for the corrosion of mild steel in 5 % hydrochloric acid. Res Chem Intermed 2012. [DOI: 10.1007/s11164-012-0821-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Dennouni-Medjati N, Harek Y, Tarik A, Lahcene L. Whole blood selenium levels in healthy adults from the west of Algeria. Biol Trace Elem Res 2012; 147:44-8. [PMID: 22144017 DOI: 10.1007/s12011-011-9287-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2011] [Accepted: 11/22/2011] [Indexed: 11/26/2022]
Abstract
The purpose of this study was to assess whole blood selenium levels of 300 healthy adults living in four selected areas of the west of Algeria. Selenium was measured using differential pulse cathodic stripping voltammetry with a detection limit of 29.20 μg/L. The mean of whole blood selenium concentrations was 85.65 ± 21.60 μg/L ranging between 30.90 and 144.04 μg/L. This concentration did not vary significantly (P > 0.05) in relation to the gender of the subject, with concentrations of 87.75 ± 21.30 μg/L in men and 83.95 ± 21.60 μg/L in women group. Individuals older than 60 years had a whole blood selenium concentration significantly lower than the rest of the population. However, the measured selenium concentrations in the residential areas were not statistically different (P > 0.05). A total of 32 (10.70%) individuals exhibited whole blood selenium level below 60 μg/L. These results are similar to those of some European countries but are much lower than data observed in USA or seleniferous regions.
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Affiliation(s)
- Nouria Dennouni-Medjati
- Laboratoire Antibiotiques, Antifongiques, Physico-chimie, Synthèse et Activité biologique, Département de Biologie, Université Abou Bekr Belkaid, Tlemcen, Algeria
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Benali O, Larabi L, Harek Y. Inhibiting effects of 2-mercapto-1-methylimidazole on copper corrosion in 0.5M sulfuric acid. Journal of Saudi Chemical Society 2010. [DOI: 10.1016/j.jscs.2010.02.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Benali O, Larabi L, Harek Y. Adsorption and inhibitive corrosion properties of thiourea derivatives on cold rolled steel in 1 M HClO4 solutions. J APPL ELECTROCHEM 2008. [DOI: 10.1007/s10800-008-9717-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Reguig A, Mostafa M, Larabi L, Harek Y. Nickel(II) Complexes with Sulphonylhydrazone Derivatives: Spectroscopic and Electrochemical Studies. ACTA ACUST UNITED AC 2008. [DOI: 10.3923/jas.2008.3191.3198] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Larabi L, Harek Y, Traisnel M, Mansri A. Synergistic Influence of Poly(4-Vinylpyridine) and Potassium Iodide on Inhibition of Corrosion of Mild Steel in 1M HCl. J APPL ELECTROCHEM 2004. [DOI: 10.1023/b:jach.0000035609.09564.e6] [Citation(s) in RCA: 176] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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