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Calame DG, Wong JH, Panda P, Nguyen DT, Leong NC, Sangermano R, Patankar SG, Abdel-Hamid M, AlAbdi L, Safwat S, Flannery KP, Dardas Z, Fatih JM, Murali C, Kannan V, Lotze TE, Herman I, Ammouri F, Rezich B, Efthymiou S, Alavi S, Murphy D, Firoozfar Z, Nasab ME, Bahreini A, Ghasemi M, Haridy NA, Goldouzi HR, Eghbal F, Karimiani EG, Srinivasan VM, Gowda VK, Du H, Jhangiani SN, Coban-Akdemir Z, Marafi D, Rodan L, Isikay S, Rosenfeld JA, Ramanathan S, Staton M, Kerby C. Oberg, Clark RD, Wenman C, Loughlin S, Saad R, Ashraf T, Male A, Tadros S, Boostani R, Abdel-Salam GM, Zaki M, Abdalla E, Manzini MC, Pehlivan D, Posey JE, Gibbs RA, Houlden H, Alkuraya FS, Bujakowska K, Maroofian R, Lupski JR, Nguyen LN. Biallelic variation in the choline and ethanolamine transporter FLVCR1 underlies a pleiotropic disease spectrum from adult neurodegeneration to severe developmental disorders. medRxiv 2024:2024.02.09.24302464. [PMID: 38405817 PMCID: PMC10888986 DOI: 10.1101/2024.02.09.24302464] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
FLVCR1 encodes Feline leukemia virus subgroup C receptor 1 (FLVCR1), a solute carrier (SLC) transporter within the Major Facilitator Superfamily. FLVCR1 is a widely expressed transmembrane protein with plasma membrane and mitochondrial isoforms implicated in heme, choline, and ethanolamine transport. While Flvcr1 knockout mice die in utero with skeletal malformations and defective erythropoiesis reminiscent of Diamond-Blackfan anemia, rare biallelic pathogenic FLVCR1 variants are linked to childhood or adult-onset neurodegeneration of the retina, spinal cord, and peripheral nervous system. We ascertained from research and clinical exome sequencing 27 individuals from 20 unrelated families with biallelic ultra-rare missense and predicted loss-of-function (pLoF) FLVCR1 variant alleles. We characterize an expansive FLVCR1 phenotypic spectrum ranging from adult-onset retinitis pigmentosa to severe developmental disorders with microcephaly, reduced brain volume, epilepsy, spasticity, and premature death. The most severely affected individuals, including three individuals with homozygous pLoF variants, share traits with Flvcr1 knockout mice and Diamond-Blackfan anemia including macrocytic anemia and congenital skeletal malformations. Pathogenic FLVCR1 missense variants primarily lie within transmembrane domains and reduce choline and ethanolamine transport activity compared with wild-type FLVCR1 with minimal impact on FLVCR1 stability or subcellular localization. Several variants disrupt splicing in a mini-gene assay which may contribute to genotype-phenotype correlations. Taken together, these data support an allele-specific gene dosage model in which phenotypic severity reflects residual FLVCR1 activity. This study expands our understanding of Mendelian disorders of choline and ethanolamine transport and demonstrates the importance of choline and ethanolamine in neurodevelopment and neuronal homeostasis.
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Affiliation(s)
- Daniel G. Calame
- Section of Pediatric Neurology and Developmental Neuroscience, Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA
- Texas Children’s Hospital, Houston, TX, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Jovi Huixin Wong
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228
| | - Puravi Panda
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228
| | - Dat Tuan Nguyen
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228
| | - Nancy C.P. Leong
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228
| | - Riccardo Sangermano
- Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School, Boston, MA
| | - Sohil G. Patankar
- Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School, Boston, MA
| | - Mohamed Abdel-Hamid
- Medical Molecular Genetics Department, Human Genetics and Genome Research Institute, National Research Centre, Cairo, Egypt
| | - Lama AlAbdi
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
- Department of Translational Genomics, Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Sylvia Safwat
- Department of Genetics, Medical Research Institute, Alexandria University, Alexandria, Egypt
| | - Kyle P. Flannery
- Department of Neuroscience and Cell Biology, Rutgers-Robert Wood Johnson Medical School, Child Health Institute of New Jersey, NY, USA
| | - Zain Dardas
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Jawid M. Fatih
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Chaya Murali
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Varun Kannan
- Section of Pediatric Neurology and Developmental Neuroscience, Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA
| | - Timothy E. Lotze
- Section of Pediatric Neurology and Developmental Neuroscience, Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA
| | - Isabella Herman
- Section of Pediatric Neurology and Developmental Neuroscience, Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA
- Texas Children’s Hospital, Houston, TX, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
- Boys Town National Research Hospital, Boys Town, NE, USA
| | - Farah Ammouri
- Boys Town National Research Hospital, Boys Town, NE, USA
- The University of Kansas Health System, Westwood, KS, USA
| | - Brianna Rezich
- Munroe-Meyer Institute for Genetics and Rehabilitation, University of Nebraska Medical Center, Omaha, NE, USA
| | - Stephanie Efthymiou
- Department of Neuromuscular diseases, UCL Institute of Neurology, WC1N 3BG, London, UK
| | - Shahryar Alavi
- Department of Neuromuscular diseases, UCL Institute of Neurology, WC1N 3BG, London, UK
| | - David Murphy
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, United Kingdom
| | | | | | - Amir Bahreini
- KaryoGen, Isfahan, Iran
- Department of Human Genetics, University of Pittsburgh, PA, USA
| | - Majid Ghasemi
- Department of Neurology, Isfahan University of Medical Sciences, Isfahan, Iran
| | | | - Hamid Reza Goldouzi
- Department of Pediatrics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fatemeh Eghbal
- Department of Medical Genetics, Next Generation Genetic Polyclinic, Mashhad, Iran
| | - Ehsan Ghayoor Karimiani
- Molecular and Clinical Sciences Institute, St George’s, University of London, Cranmer Terrace London, London, UK
| | | | - Vykuntaraju K. Gowda
- Department of Pediatric Neurology, Indira Gandhi Institute of Child Health, Bangalore, India
| | - Haowei Du
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | | | - Zeynep Coban-Akdemir
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
- Human Genetics Center, Department of Epidemiology, Human Genetics, and Environmental Sciences, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Dana Marafi
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
- Department of Pediatrics, Faculty of Medicine, Kuwait University, Kuwait
| | - Lance Rodan
- Department of Neurology, Boston Children’s Hospital, Boston, Massachusetts, USA
- Division of Genetics and Genomics, Boston Children’s Hospital, Boston, Massachusetts, USA
| | - Sedat Isikay
- Gaziantep Islam Science and Technology University, Medical Faculty, Department of Pediatric Neurology, Gaziantep, Turkey
| | - Jill A. Rosenfeld
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
- Baylor Genetics Laboratories, Houston, TX, USA
| | - Subhadra Ramanathan
- Division of Genetics, Department of Pediatrics, Loma Linda University School of Medicine, Loma Linda, CA, USA
| | - Michael Staton
- Division of Genetics, Department of Pediatrics, Loma Linda University School of Medicine, Loma Linda, CA, USA
| | - Kerby C. Oberg
- Department of Pathology and Human Anatomy, Loma Linda University School of Medicine, Loma Linda, CA, USA
| | - Robin D. Clark
- Division of Genetics, Department of Pediatrics, Loma Linda University School of Medicine, Loma Linda, CA, USA
| | - Catharina Wenman
- Rare & Inherited Disease Laboratory, NHS North Thames Genomic Laboratory Hub, Great Ormond Street Hospital for Children NHS Foundation Trust, London, WC1N 3BH, UK
| | - Sam Loughlin
- Rare & Inherited Disease Laboratory, NHS North Thames Genomic Laboratory Hub, Great Ormond Street Hospital for Children NHS Foundation Trust, London, WC1N 3BH, UK
| | - Ramy Saad
- North East Thames Regional Genetic Service, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Tazeen Ashraf
- North East Thames Regional Genetic Service, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Alison Male
- North East Thames Regional Genetic Service, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Shereen Tadros
- North East Thames Regional Genetic Service, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Reza Boostani
- Department of Neurology, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ghada M.H. Abdel-Salam
- Department of Clinical Genetics, Human Genetics and Genome Research Division, National Research Centre, Cairo, Egypt
| | - Maha Zaki
- Department of Clinical Genetics, Human Genetics and Genome Research Division, National Research Centre, Cairo, Egypt
| | - Ebtesam Abdalla
- Department of Genetics, Medical Research Institute, Alexandria University, Alexandria, Egypt
| | - M. Chiara Manzini
- Department of Neuroscience and Cell Biology, Rutgers-Robert Wood Johnson Medical School, Child Health Institute of New Jersey, NY, USA
| | - Davut Pehlivan
- Section of Pediatric Neurology and Developmental Neuroscience, Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA
- Texas Children’s Hospital, Houston, TX, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Jennifer E. Posey
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Richard A. Gibbs
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
| | - Henry Houlden
- Department of Neuromuscular diseases, UCL Institute of Neurology, WC1N 3BG, London, UK
| | - Fowzan S. Alkuraya
- Department of Translational Genomics, Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
- Department of Pediatrics, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
| | - Kinga Bujakowska
- Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School, Boston, MA
| | - Reza Maroofian
- Department of Neuromuscular diseases, UCL Institute of Neurology, WC1N 3BG, London, UK
| | - James R. Lupski
- Texas Children’s Hospital, Houston, TX, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
- Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA
| | - Long Nam Nguyen
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228
- Immunology Program, Life Sciences Institute, National University of Singapore, Singapore 117456
- Singapore Lipidomics Incubator (SLING), Life Sciences Institute, National University of Singapore, Singapore 117456
- Cardiovascular Disease Research (CVD) Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117545
- Immunology Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117456
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Dharmadhikari AV, Abad MA, Khan S, Maroofian R, Sands TT, Ullah F, Samejima I, Wear MA, Moore KE, Kondakova E, Mitina N, Schaub T, Lee GK, Umandap CH, Berger SM, Iglesias AD, Popp B, Jamra RA, Gabriel H, Rentas S, Rippert AL, Izumi K, Conlin LK, Koboldt DC, Mosher TM, Hickey SE, Albert DVF, Norwood H, Lewanda AF, Dai H, Liu P, Mitani T, Marafi D, Pehlivan D, Posey JE, Lippa N, Vena N, Heinzen EL, Goldstein DB, Mignot C, de Sainte Agathe JM, Al-Sannaa NA, Zamani M, Sadeghian S, Azizimalamiri R, Seifia T, Zaki MS, Abdel-Salam GMH, Abdel-Hamid M, Alabdi L, Alkuraya FS, Dawoud H, Lofty A, Bauer P, Zifarelli G, Afzal E, Zafar F, Efthymiou S, Gossett D, Towne MC, Yeneabat R, Wontakal SN, Aggarwal VS, Rosenfeld JA, Tarabykin V, Ohta S, Lupski JR, Houlden H, Earnshaw WC, Davis EE, Jeyaprakash AA, Liao J. RNA methyltransferase SPOUT1/CENP-32 links mitotic spindle organization with the neurodevelopmental disorder SpADMiSS. medRxiv 2024:2024.01.09.23300329. [PMID: 38260255 PMCID: PMC10802637 DOI: 10.1101/2024.01.09.23300329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
SPOUT1/CENP-32 encodes a putative SPOUT RNA methyltransferase previously identified as a mitotic chromosome associated protein. SPOUT1/CENP-32 depletion leads to centrosome detachment from the spindle poles and chromosome misalignment. Aided by gene matching platforms, we identified 24 individuals with neurodevelopmental delays from 18 families with bi-allelic variants in SPOUT1/CENP-32 detected by exome/genome sequencing. Zebrafish spout1/cenp-32 mutants showed reduction in larval head size with concomitant apoptosis likely associated with altered cell cycle progression. In vivo complementation assays in zebrafish indicated that SPOUT1/CENP-32 missense variants identified in humans are pathogenic. Crystal structure analysis of SPOUT1/CENP-32 revealed that most disease-associated missense variants mapped to the catalytic domain. Additionally, SPOUT1/CENP-32 recurrent missense variants had reduced methyltransferase activity in vitro and compromised centrosome tethering to the spindle poles in human cells. Thus, SPOUT1/CENP-32 pathogenic variants cause an autosomal recessive neurodevelopmental disorder: SpADMiSS ( SPOUT1 Associated Development delay Microcephaly Seizures Short stature) underpinned by mitotic spindle organization defects and consequent chromosome segregation errors.
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Elaraby NM, Galal ER, Abdel-Hamid M, Elbendary HM, Elbadry M, Mekkawy MK, Ashaat NA, Mounir SM, Ashaat EA. First LIPA Mutational Analysis in Egyptian Patients Reveals One Novel Variant: Wolman Disease. J Mol Neurosci 2023; 73:598-607. [PMID: 37470904 PMCID: PMC10517033 DOI: 10.1007/s12031-023-02139-6] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 06/23/2023] [Indexed: 07/21/2023]
Abstract
Lysosomal acid lipase (LAL) is a necessary enzyme for the hydrolysis of both triglycerides (TGs) and cholesteryl esters (CEs) in the lysosome. Deficiency of this enzyme encoded by the lipase A (LIPA) gene leads to LAL deficiency (LAL-D). A severe disease subtype of LAL-D is known as Wolman disease (WD), present with diarrhea, hepatosplenomegaly, and adrenal calcification. Untreated patients do not survive more than a year. The aim of this study was to assess the clinical and molecular characterizations of WD patients in Egypt. A total of seven patients (from five unrelated Egyptian families) were screened by targeted next-generation sequencing (NGS), and the co-segregation of causative variants was analyzed using Sanger sequencing. Furthermore, multiple in silico analyses were performed to assess the pathogenicity of the candidate variants. Overall, we identified three diseases causing variants harbored in the LIPA gene. One of these variants is a novel missense variant (NM_000235.4: c.1122 T > G; p. His374Gln), which was classified as a likely pathogenic variant. All variants were predicted to be disease causing using in silico analyses. Our findings expand the spectrum of variants involved in WD which may help to investigate phenotype-genotype correlation and assist genetic counseling. To the best of our knowledge, this is the first clinico-genetic study carried out on Egyptian patients affected with WD.
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Affiliation(s)
- Nesma M Elaraby
- Medical Molecular Genetics Department, Human Genetics and Genome Research Institute, National Research Centre, Cairo, Egypt.
| | - Eman Reda Galal
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
| | - Mohamed Abdel-Hamid
- Medical Molecular Genetics Department, Human Genetics and Genome Research Institute, National Research Centre, Cairo, Egypt
| | - Hasnaa M Elbendary
- Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Centre, Cairo, Egypt
| | - Mohamed Elbadry
- Associate Professor of Endemic Medicine Department, Faculty of Medicine, Helwan University, Cairo, Egypt
| | - Mona K Mekkawy
- Human Cytogenetics Department, Human Genetics and Genome Research Institute, National Research Centre, Cairo, Egypt
| | - Neveen A Ashaat
- Professor of Genetics and Biotechnology, Ain Shams University, Cairo, Egypt
| | | | - Engy A Ashaat
- Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Centre, Cairo, Egypt
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Hoch V, Abdel-Hamid M, Fung C. 332 Point-of-Care Ultrasound Decreases Time to Intervention for Patients With Pericardial Effusions. Ann Emerg Med 2021. [DOI: 10.1016/j.annemergmed.2021.09.346] [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: 11/30/2022]
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Ahmed N, Abdel-Hamid M, Abd El-Razik MM, El-Dash KM. Impact of sustainable design in the construction sector on climate change. Ain Shams Engineering Journal 2021; 12:1375-1383. [DOI: 10.1016/j.asej.2020.11.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Mazen I, Mekkawy M, Kamel A, Essawi M, Hassan H, Abdel-Hamid M, Amr K, Soliman H, El-Ruby M, Torky A, El Gammal M, Elaidy A, Bashamboo A, McElreavey K. Advances in genomic diagnosis of a large cohort of Egyptian patients with disorders of sex development. Am J Med Genet A 2021; 185:1666-1677. [PMID: 33742552 DOI: 10.1002/ajmg.a.62129] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 01/28/2021] [Accepted: 01/30/2021] [Indexed: 12/15/2022]
Abstract
Disorders/differences of sex development (DSD) comprise a group of congenital disorders that affect the genitourinary tract and usually involve the endocrine and reproductive system. The aim of this work was to identify genetic variants responsible for disorders of human urogenital development in a cohort of Egyptian patients. This three-year study included 225 patients with various DSD forms, referred to the genetic DSD and endocrinology clinic, National Research Centre, Egypt. The patients underwent thorough clinical examination, hormonal and imaging studies, detailed cytogenetic and fluorescence in situ hybridization analysis, and molecular sequencing of genes known to commonly cause DSD including AR, SRD5A2, 17BHSD3, NR5A1, SRY, and WT1. Whole exome sequencing (WES) was carried out for 18 selected patients. The study revealed a high rate of sex chromosomal DSD (33%) with a wide array of cytogenetic abnormalities. Sanger sequencing identified pathogenic variants in 33.7% of 46,XY patients, while the detection rate of WES reached 66.7%. Our patients showed a different mutational profile compared with that reported in other populations with a predominance of heritable DSD causes. WES identified rare and novel pathogenic variants in NR5A1, WT1, HHAT, CYP19A1, AMH, AMHR2, and FANCA and in the X-linked genes ARX and KDM6A. In addition, digenic inheritance was observed in two of our patients and was suggested to be a cause of the phenotypic variability observed in DSD.
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Affiliation(s)
- Inas Mazen
- Department of Clinical Genetics, National Research Centre, Cairo, Egypt
| | - Mona Mekkawy
- Department of Human Cytogenetics, National Research Center, Cairo, Egypt
| | - Alaa Kamel
- Department of Human Cytogenetics, National Research Center, Cairo, Egypt
| | - Mona Essawi
- Department of Medical Molecular Genetics, National Research Centre, Cairo, Egypt
| | - Heba Hassan
- Department of Medical Molecular Genetics, National Research Centre, Cairo, Egypt
| | - Mohamed Abdel-Hamid
- Department of Medical Molecular Genetics, National Research Centre, Cairo, Egypt
| | - Khalda Amr
- Department of Medical Molecular Genetics, National Research Centre, Cairo, Egypt
| | - Hala Soliman
- Department of Medical Molecular Genetics, National Research Centre, Cairo, Egypt
| | - Mona El-Ruby
- Department of Clinical Genetics, National Research Centre, Cairo, Egypt
| | - Ahmed Torky
- Department of Clinical Genetics, National Research Centre, Cairo, Egypt
| | - Mona El Gammal
- Department of Clinical Genetics, National Research Centre, Cairo, Egypt
| | - Aya Elaidy
- Department of Clinical Genetics, National Research Centre, Cairo, Egypt
| | - Anu Bashamboo
- Developmental Genetics and Stem Cell Biology, Institut Pasteur, Paris, France
| | - Kenneth McElreavey
- Developmental Genetics and Stem Cell Biology, Institut Pasteur, Paris, France
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Abdel-Hamid M, Abdelhaleem HM. Project cost control using five dimensions building information modelling. International Journal of Construction Management 2021. [DOI: 10.1080/15623599.2021.1880313] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Mohamed Abdel-Hamid
- Civil Engineering Department, Faculty of Engineering at Shobra, Benha University, Benha, Egypt
| | - Hanaa Mohamed Abdelhaleem
- Civil Engineering Department, Delta Higher Institute for Engineering and Technology, Mansoura, Egypt
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Affiliation(s)
- Mohamed Sayed
- Civil Engineering Department, Faculty of Engineering at Shobra, Benha University, Egypt
| | - Mohamed Abdel-Hamid
- Civil Engineering Department, Faculty of Engineering at Shobra, Benha University, Egypt
| | - Karim El-Dash
- Civil Engineering Department, Faculty of Engineering at Shobra, Benha University, Egypt
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Abdel-Hamid M, Mohamed Abdelhaleem H. Impact of poor labor productivity on construction project cost. International Journal of Construction Management 2020. [DOI: 10.1080/15623599.2020.1788757] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Mohamed Abdel-Hamid
- Civil Engineering Department, Faculty of Engineering at Shobra, Benha University, Benha, Egypt
| | - Hanaa Mohamed Abdelhaleem
- Civil Engineering Department, Delta Higher Institute for Engineering and Technology, Mansoura, Egypt
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Christiansen H, Kis B, Hirsch O, Matthies S, Hebebrand J, Uekermann J, Abdel-Hamid M, Kraemer M, Wiltfang J, Graf E, Colla M, Sobanski E, Alm B, Rösler M, Jacob C, Jans T, Huss M, Schimmelmann B, Philipsen A. German validation of the Conners Adult ADHD Rating Scales (CAARS) II: Reliability, validity, diagnostic sensitivity and specificity. Eur Psychiatry 2020; 27:321-8. [DOI: 10.1016/j.eurpsy.2010.12.010] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2010] [Revised: 12/13/2010] [Accepted: 12/26/2010] [Indexed: 10/18/2022] Open
Abstract
AbstractBackgroundThe German version of the Conners Adult ADHD Rating Scales (CAARS) has proven to show very high model fit in confirmative factor analyses with the established factors inattention/memory problems, hyperactivity/restlessness, impulsivity/emotional lability, and problems with self-concept in both large healthy control and ADHD patient samples. This study now presents data on the psychometric properties of the German CAARS-self-report (CAARS-S) and observer-report (CAARS-O) questionnaires.MethodsCAARS-S/O and questions on sociodemographic variables were filled out by 466 patients with ADHD, 847 healthy control subjects that already participated in two prior studies, and a total of 896 observer data sets were available. Cronbach's-alpha was calculated to obtain internal reliability coefficients. Pearson correlations were performed to assess test-retest reliability, and concurrent, criterion, and discriminant validity. Receiver Operating Characteristics (ROC-analyses) were used to establish sensitivity and specificity for all subscales.ResultsCoefficient alphas ranged from .74 to .95, and test-retest reliability from .85 to .92 for the CAARS-S, and from .65 to .85 for the CAARS-O. All CAARS subscales, except problems with self-concept correlated significantly with the Barrett Impulsiveness Scale (BIS), but not with the Wender Utah Rating Scale (WURS). Criterion validity was established with ADHD subtype and diagnosis based on DSM-IV criteria. Sensitivity and specificity were high for all four subscales.ConclusionThe reported results confirm our previous study and show that the German CAARS-S/O do indeed represent a reliable and cross-culturally valid measure of current ADHD symptoms in adults.
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Abdel-Hamid M, Osman A, El-Hadary A, Romeih E, Sitohy M, Li L. Hepatoprotective action of papain-hydrolyzed buffalo milk protein on carbon tetrachloride oxidative stressed albino rats. J Dairy Sci 2019; 103:1884-1893. [PMID: 31837790 DOI: 10.3168/jds.2019-17355] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [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: 07/30/2019] [Accepted: 10/11/2019] [Indexed: 01/10/2023]
Abstract
Buffalo skim milk retentate was hydrolyzed with papain for 4 h (enzyme:substrate, 1:200), resulting in a retentate hydrolysate (RH) with a degree of hydrolysis of 23%. We then investigated the potential hepatoprotective activity of RH at 250 and 500 mg/kg of body weight per day on carbon tetrachloride (CCl4)-induced oxidative stress in albino rats. Liver biomarkers (alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase, and lactate dehydrogenase), kidney biomarkers (urea, creatinine), and serum lipid profile (total lipids and triglycerides) were measured, in addition to histopathological status. Injection of CCl4 significantly increased all liver and kidney biomarkers compared with the negative control. In contrast, CCl4 injection significantly reduced hepatic antioxidant enzyme activities; that is, glutathione peroxidase and superoxide dismutase. Oral administration of RH for 28 d effectively maintained a physiologically normal range of liver and kidney biomarkers compared with the positive control. Furthermore, RH administration significantly increased activities of glutathione peroxidase and superoxide dismutase. Histopathological sections of CCl4-stressed rats treated with RH were different from that of the positive control and were similar to those of the negative control, in a concentration-dependent manner. Our results demonstrated the antihepatotoxic activities of buffalo milk RH and demonstrated that the higher RH concentration (500 mg/kg of body weight per day) could maintain the healthy biological status of the CCl4-injected rats.
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Affiliation(s)
- M Abdel-Hamid
- Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning 530001, China; Dairy Science Department, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
| | - A Osman
- Biochemistry Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
| | - A El-Hadary
- Biochemistry Department, Faculty of Agriculture, Banha University, Banha 13736, Egypt
| | - E Romeih
- Dairy Science Department, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
| | - M Sitohy
- Biochemistry Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
| | - L Li
- Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning 530001, China.
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Elwan N, Assal F, Elfert A, AboAli L, Soliman S, Soliman S, Elkhalawany W, Badawy R, Effat L, Sayed K, Shalaby S, Shehab M, Abdel-Hamid M, Abd-Elsalam S. Genetic Susceptibility in Family Members of Egyptian Hepatitis C Virus Infected Patients: Role of Interleukin-12 B Gene Polymorphism. Infect Disord Drug Targets 2019; 19:81-87. [PMID: 29283074 DOI: 10.2174/1871526518666171227210541] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 07/14/2017] [Revised: 11/23/2017] [Accepted: 12/13/2017] [Indexed: 12/11/2022]
Abstract
AIM The research was conducted to study 1188 A\C polymorphism of Interleukin (IL)-12B gene for C/C, A/C and A/A genotypes in families of Hepatitis C virus (HCV) infected patients in Egypt. METHODS Three hundreds HCV patients, 860 family members and 100 healthy subjects were studied. All family members were screened for HCV antibodies by enzyme-linked immunosorbent assay (ELISA). Positive cases were examined using Real-Time polymerase chain reaction (PCR) to confirm the presence of HCV ribonucleic acid (RNA) and detect the viral load. Molecular study of IL-12B gene was carried out on all patients, family members and controls using PCR and restriction enzyme analysis. RESULTS HCV infection was confirmed in 10.6% of family members. The distribution of IL-12B gene polymorphism in patients was 2.3%, 45.7% and 52% for C/C, A/C and A/A genotypes respectively, in infected family members was 3.3%, 41.7%, 55%, in noninfected family members was 4.5%, 43.5% and 52% for C/C, A/C and A/A genotypes respectively and in control was 5%, 36% and 59% for C/C, A/C and A/A genotypes respectively. The frequency of the C/C, A/C and A/A genotype was not significantly different between the studied groups. CONCLUSION IL-12B gene polymorphism has no role in intrafamilial susceptibility of HCV transmission. The distribution of the functional 1188 A\C polymorphism of Interleukin (IL)-12B gene for C/C, A/C and A/A genotypes was not significantly different among the studied groups.
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Affiliation(s)
- Nadia Elwan
- Departments of Tropical Medicine and Public Health, Faculty of Medicine, Tanta University, El- Giash Street 31111, Tanta, Egypt
| | - Fathia Assal
- Departments of Tropical Medicine and Public Health, Faculty of Medicine, Tanta University, El- Giash Street 31111, Tanta, Egypt
| | - Asem Elfert
- Departments of Tropical Medicine and Public Health, Faculty of Medicine, Tanta University, El- Giash Street 31111, Tanta, Egypt
| | - Lobna AboAli
- Departments of Tropical Medicine and Public Health, Faculty of Medicine, Tanta University, El- Giash Street 31111, Tanta, Egypt
| | - Shaimaa Soliman
- Department of Public Health and Community Medicine, Menoufia University, Menoufia, Egypt
| | - Samah Soliman
- Departments of Tropical Medicine and Public Health, Faculty of Medicine, Tanta University, El- Giash Street 31111, Tanta, Egypt
| | - Walaa Elkhalawany
- Departments of Tropical Medicine and Public Health, Faculty of Medicine, Tanta University, El- Giash Street 31111, Tanta, Egypt
| | - Rehab Badawy
- Departments of Tropical Medicine and Public Health, Faculty of Medicine, Tanta University, El- Giash Street 31111, Tanta, Egypt
| | - Laila Effat
- Departments of Medical Molecular Genetics and Cytogenetic, National Research Centre (NRC), El Behoosst, Dokki Cairo 11231, Egypt
| | - Khalda Sayed
- Departments of Medical Molecular Genetics and Cytogenetic, National Research Centre (NRC), El Behoosst, Dokki Cairo 11231, Egypt
| | - Safinaz Shalaby
- Departments of Tropical Medicine and Public Health, Faculty of Medicine, Tanta University, El- Giash Street 31111, Tanta, Egypt
| | - Marwa Shehab
- Departments of Medical Molecular Genetics and Cytogenetic, National Research Centre (NRC), El Behoosst, Dokki Cairo 11231, Egypt
| | - Mohamed Abdel-Hamid
- Departments of Medical Molecular Genetics and Cytogenetic, National Research Centre (NRC), El Behoosst, Dokki Cairo 11231, Egypt
| | - Sherief Abd-Elsalam
- Departments of Tropical Medicine and Public Health, Faculty of Medicine, Tanta University, El- Giash Street 31111, Tanta, Egypt
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El-Kafrawy SA, Jamjoom GA, Akbar HO, Fallatah HIB, El-Daly MM, Qari YA, Alghamdi AS, Babatin M, Alsaedi MA, Othman NA, Al-Subhi TL, Abdel-Hamid M, Azhar EI. Analysis of Hepatitis B virus (HBV) mutations in patients from Western Saudi Arabia with chronic disease. J Infect Dev Ctries 2018; 12:557-567. [PMID: 31954005 DOI: 10.3855/jidc.9534] [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: 07/08/2017] [Accepted: 02/03/2018] [Indexed: 10/31/2022] Open
Abstract
INTRODUCTION Extensive research has provided a link between HBV variants and the clinical complications of liver diseases. This study was performed to further investigate the relationship between HBV variants in preS, S and BCP/PC regions and disease progression in chronic hepatitis B (CHB) cases in Jeddah, Saudi Arabia. METHODOLOGY 182 CHB patients were recruited for this study. HBV DNA was amplified by PCR in the PreS, S, and BCP/PC regions. Sequences were generated from 31 and 26 treated cases in PreS and S regions respectively and from 72 cases in the BCP/PC region. RESULTS The majority of cases (86.7%) were genotype D. Mutations at preS1-A2922C, X-A1624C and PC-G1887A were detected only in cases with either a high fibrosis score or hepatocellular carcinoma (HCC), while mutations at positions PC-C1982A, PC-G1951T, X-C1628T and X-A1630G were detected more frequently in HCC cases, without reaching statistical significance. Seven deletions were detected in the PreS-region. No deletions were detected in the CCAAT box. The accumulation of mutations per sample in the preS1-2 and S regions were associated with elevated ALT (p < 0.001, 0.001 and 0.001; respectively) and increased fibrosis (p = 0.018, 0.02 and 0.013; respectively). The accumulation of mutations per sample in the BCP/PC region is associated with high viral load. Occult hepatitis B infection (OBI) was identified in 5 samples. CONCLUSION Our results add to the knowledge about HBV genotype-D variants. The accumulation of mutations per sample and OBI seem to play a role in the progression of HBV infection. G1896A was associated with the HBeAg negativity. The preS deletions did not play a role in liver disease progression.
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Abdel-Hamid M, Elshaer S, Darwish A. Association of MicroRNA related single nucleotide polymorphisms 196A-2 and 499 with the risk of hepatocellular carcinoma in Egyptian patients. Meta Gene 2018. [DOI: 10.1016/j.mgene.2018.02.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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16
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Esmat G, Elbaz T, El Raziky M, Gomaa A, Abouelkhair M, Gamal El Deen H, Sabry A, Ashour M, Allam N, Abdel-Hamid M, Nada O, Helmy S, Abdel-Maguid H, Colonno R, Brown N, Ruby E, Vig P, Waked I. Effectiveness of ravidasvir plus sofosbuvir in interferon-naïve and treated patients with chronic hepatitis C genotype-4. J Hepatol 2017; 68:S0168-8278(17)32286-9. [PMID: 28935432 DOI: 10.1016/j.jhep.2017.09.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 08/20/2017] [Accepted: 09/04/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND & AIMS Although treatment of hepatitis C virus (HCV) and HCV-genotype-4 (GT4) has become very effective, it remains very expensive, and affordable options are needed, especially in limited resource countries. The aim of this study was to assess the efficacy and safety of the combination of ravidasvir (an NS5A inhibitor) and sofosbuvir to treat patients with chronic HCV-GT4 infection. METHODS A total of 300 patients with HCV-GT4 infection were recruited in three groups: treatment-naïve patients with or without compensated Child-A cirrhosis (Group 1); interferon-experienced patients without cirrhosis (Group 2); and interferon-experienced patients with cirrhosis (Group 3). Groups 1 and 2 received ravidasvir 200 mg QD plus sofosbuvir 400 mg QD for 12 weeks and were randomized 1:1 to treatment with or without weight-based ribavirin. Group 3 patients received ravidasvir plus sofosbuvir with ribavirin and were randomized 1:1 to a treatment duration of 12 weeks or 16 weeks. The primary endpoint was sustained virologic response at 12 weeks post-treatment (SVR12). RESULTS A total of 298 patients were enrolled: 149 in Group 1, 79 in Group 2 and 70 in Group 3. SVR12 was achieved in 95.3% of all patients who started the study, including 98% of patients without cirrhosis and 91% of patients with cirrhosis, whether treatment-naïve or interferon-experienced. Ribavirin intake and history of previous interferon therapy did not affect SVR12 rates. No virologic breakthroughs were observed and the study treatment was well tolerated. CONCLUSIONS Treatment with ravidasvir plus sofosbuvir, with or without ribavirin, was well tolerated and associated with high sustained virologic response rate for HCV-GT4 infected patients with and without cirrhosis, regardless of previous interferon-based treatments. TRIAL REGISTRATION NUMBER ClinicalTrials.gov Identifier: NCT02371408. LAY SUMMARY This study evaluated efficacy and safety of the new oral hepatitis C drug ravidasvir in combination with the approved oral drug sofosbuvir in 298 patients infected with hepatitis C type 4. Our results showed that treatment with ravidasvir plus sofosbuvir, with or without ribavirin, was well tolerated and associated with high response rate in patients with and without cirrhosis.
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Affiliation(s)
- Gamal Esmat
- Endemic Medicine Department, Faculty of Medicine, Cairo University, Egypt
| | - Tamer Elbaz
- Endemic Medicine Department, Faculty of Medicine, Cairo University, Egypt.
| | - Maissa El Raziky
- Endemic Medicine Department, Faculty of Medicine, Cairo University, Egypt; Cairo Fatemic Hospital, Ministry of Health, Egypt
| | - Asmaa Gomaa
- National Liver Institute, Menoufiya University, Shebeen EL Kom, Egypt
| | - Mahmoud Abouelkhair
- Endemic Medicine Department, Faculty of Medicine, Cairo University, Egypt; Cairo Fatemic Hospital, Ministry of Health, Egypt
| | | | - Aliaa Sabry
- National Liver Institute, Menoufiya University, Shebeen EL Kom, Egypt
| | - Mohamed Ashour
- Endemic Medicine Department, Faculty of Medicine, Cairo University, Egypt; Cairo Fatemic Hospital, Ministry of Health, Egypt
| | - Naglaa Allam
- National Liver Institute, Menoufiya University, Shebeen EL Kom, Egypt
| | - Mohamed Abdel-Hamid
- Department of Microbiology, Faculty of Medicine, Minia University, El Minia, Egypt
| | - Ola Nada
- Pathology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | | | | | - Richard Colonno
- Presidio Pharmaceuticals, Inc., San Francisco, California, USA
| | - Nathaniel Brown
- Presidio Pharmaceuticals, Inc., San Francisco, California, USA
| | - Eric Ruby
- Presidio Pharmaceuticals, Inc., San Francisco, California, USA
| | - Pamela Vig
- Presidio Pharmaceuticals, Inc., San Francisco, California, USA
| | - Imam Waked
- National Liver Institute, Menoufiya University, Shebeen EL Kom, Egypt.
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Niklewski F, Abdel-Hamid M, Ntoulias G, Guberina N, Krämer M, Dziobek I, Wiltfang J, Kis B. Theory of mind deficits in adults with ADHD. PHARMACOPSYCHIATRY 2017. [DOI: 10.1055/s-0037-1606433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- F Niklewski
- University Medical Center, Department of Psychiatry and Psychotherapy, Essen, Germany
| | - M Abdel-Hamid
- University Medical Center, Department of Psychiatry and Psychotherapy, Göttingen, Germany
| | - G Ntoulias
- University Medical Center, Department of Psychiatry and Psychotherapy, Essen, Germany
| | - N Guberina
- University Medical Center, Department of Psychiatry and Psychotherapy, Essen, Germany
| | - M Krämer
- Alfried Krupp Hospital, Department of Neurology and Neurophysiology, Essen, Germany
| | - I Dziobek
- Humboldt-Universität zu Berlin, Berlin School of Mind and Brain and Institute of Psychology, Berlin, Germany
| | - J Wiltfang
- University Medical Center, Department of Psychiatry and Psychotherapy, Göttingen, Germany
| | - B Kis
- University Medical Center, Department of Psychiatry and Psychotherapy, Göttingen, Germany
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18
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Kotb DN, Esmail MA, Abdelwahab SF, Abdel-Hamid M. Correlation between hepatitis C viral load and hepatitis C Core antigenaemia among Egyptians. East Mediterr Health J 2017. [PMID: 28634978 DOI: 10.26719/2017.23.4.280] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Hepatitis C virus (HCV) infection is widespread in Egypt. This study compared HCV RNA with HCVcAg for the detection and quantification of viraemia among a sample of Egyptians. Sera from 80 suspected HCVpositive individuals were tested simultaneously for HCV-RNA load using real-time polymerase chain reaction (PCR) and HCVcAg level using ELISA. Of the 80 samples, 25% were HCV-RNA-negative. HCVcAg was detected in all samples: range 0.4-2462 ng/mL, mean 460 (SD 506) ng/mL. The sensitivity and specificity of HCVcAg were 96.7% and 90.9%, respectively. There was a significant correlation between serum HCV-RNA and HCVcAg levels (r = 0.4, P < 0.0001). HCV-RNA remains the gold standard for diagnosis of active HCV infection but HCVcAg can be used where PCR is not available.
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Affiliation(s)
- Dalia N Kotb
- Department of Microbiology and Immunology, Faculty of Medicine, Minia University, Minia, Egypt
| | - Mona A Esmail
- Department of Microbiology and Immunology, Faculty of Medicine, Minia University, Minia, Egypt
| | - Sayed F Abdelwahab
- Department of Microbiology and Immunology, Faculty of Medicine, Minia University, Minia, Egypt; Department of Microbiology, Faculty of Pharmacy, Taif University, Al-Haweiah, Taif, Saudi Arabia
| | - Mohamed Abdel-Hamid
- Department of Microbiology and Immunology, Faculty of Medicine, Minia University, Minia, Egypt
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19
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Kis B, Guberina N, Kraemer M, Niklewski F, Dziobek I, Wiltfang J, Abdel-Hamid M. Perception of emotional prosody in adults with attention deficit hyperactivity disorder. Acta Psychiatr Scand 2017; 135:506-514. [PMID: 28276052 DOI: 10.1111/acps.12719] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/14/2017] [Indexed: 11/27/2022]
Abstract
OBJECTIVE Attention deficit hyperactivity disorder (ADHD) is associated with social conflicts. The purpose of this study was to explore domains of social cognition in adult patients with ADHD. METHODS The assessment of social cognition was based on established neuropsychological tests: the Tübinger Affect Battery (TAB) for prosody and the Cambridge Behaviour Scale (CBS) for empathy. The performance of adults with ADHD (N = 28) was compared with the performance of a control group (N = 29) matched according to basic demographic variables. RESULTS Treatment-naïve adults with ADHD showed deficits in emotional prosody (P = 0.02) and in the ability to empathize (P < 0.02) independent of executive functioning. In particular, their ability to perceive angry feelings was found to be compromised (P = 0.04). When emotional prosody was considered in relation to facial expressions, patients and controls showed no impairments (P > 0.2). No gender differences concerning social cognitive skills were detected. CONCLUSIONS ADHD is associated with social cognition impairments involving both emotional prosody and empathy.
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Affiliation(s)
- B Kis
- Department of Psychiatry and Psychotherapy, University Medical Center Göttingen (UMG), Göttingen, Germany
| | - N Guberina
- LVR Hospital Essen, Department of Psychiatry and Psychotherapy, Faculty of Medicine, University of Duisburg-Essen, Essen, Germany.,Institute of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Essen, Germany
| | - M Kraemer
- Department of Neurology, Alfried Krupp von Bohlen and Halbach Hospital, Essen, Germany
| | - F Niklewski
- LVR Hospital Essen, Department of Psychiatry and Psychotherapy, Faculty of Medicine, University of Duisburg-Essen, Essen, Germany
| | - I Dziobek
- Berlin School of Mind and Brain, Humboldt University, Berlin, Germany
| | - J Wiltfang
- Department of Psychiatry and Psychotherapy, University Medical Center Göttingen (UMG), Göttingen, Germany
| | - M Abdel-Hamid
- Department of Psychiatry and Psychotherapy, University Medical Center Göttingen (UMG), Göttingen, Germany
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Ezzeldin N, El-Lebedy D, Darwish A, El-Bastawisy A, Hassan M, Abd El-Aziz S, Abdel-Hamid M, Saad-Hussein A. Genetic polymorphisms of human cytochrome P450 CYP1A1 in an Egyptian population and tobacco-induced lung cancer. Genes Environ 2017; 39:7. [PMID: 28074113 PMCID: PMC5219678 DOI: 10.1186/s41021-016-0066-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 12/08/2016] [Indexed: 01/20/2023] Open
Abstract
Background Cytochrome P450 CYP1A1 helps detoxify the potential carcinogens in tobacco smoke, it was reported that polymorphisms in the coding gene result in variation in the expression and activity levels which alter metabolism and clearance of carcinogens and therefore modify cancer risk. In this work, we aimed to identify CYP1A1 gene polymorphisms associated with lung cancer in Egyptian population and to examine the interaction effect with Tobacco smoking in modulating disease risk. Methods A case–control study was conducted on 150 unrelated lung cancer patients and 150 unrelated control subjects. Genomic DNA was extracted and sequencing analysis of CYP1A1 gene was performed on ABI PRISM 3100 genetic analyzer. Results Three variants in CYP1A1 gene were identified in heterozygous forms in lung cancer patients I462V, T461N and I286T. A combined variant T461N/ I462V associated with lung cancer and those who carried this variant were 2-times more likely to develop lung cancer (OR = 2.03, 95% CI = 1.81-2.29, P = 0.04), specially the non-small cell type (NSCLC) (OR = 2.20, 95% CI = 1.93–2.50, P = 0.02). Wild type was more frequent among smoker controls (83.3%) compared to smoker lung cancer patients (54.8%), P = 0.03. Association studies to examine the interaction effect of identified variants with Tobacco smoking in modulating disease risk showed no significant associations. Identified polymorphisms showed no significant implication on the stage or the prognosis of the disease. Conclusion Our findings support that CYP1A1 polymorphisms play a role in the pathogenesis of lung cancer. In Egyptian population, CYP1A1 I462V, T461N and I286T variants were identified among lung cancer patients and combined T461N/ I462V was a risk variant for NSCLC in non smokers.
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Affiliation(s)
- Nada Ezzeldin
- Chest Diseases, National Research Center, Cairo, Egypt
| | - Dalia El-Lebedy
- Department of Clinical and Chemical Pathology, National Research Center, Cairo, Egypt
| | - Amira Darwish
- Medical Oncology, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Ahmed El-Bastawisy
- Medical Oncology, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Mirhane Hassan
- Department of Clinical and Chemical Pathology, National Research Center, Cairo, Egypt
| | - Shereen Abd El-Aziz
- Department of Clinical and Chemical Pathology, National Research Center, Cairo, Egypt
| | | | - Amal Saad-Hussein
- Department of Environmental Health and Preventive Medicine, National Research Center, Cairo, Egypt
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Mahmoud F, Al-Ozairi E, Haines D, Novotny L, Dashti A, Ibrahim B, Abdel-Hamid M. Effect of Diabetea tea ™ consumption on inflammatory cytokines and metabolic biomarkers in type 2 diabetes patients. J Ethnopharmacol 2016; 194:1069-1077. [PMID: 27989874 DOI: 10.1016/j.jep.2016.10.073] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 09/04/2016] [Accepted: 10/25/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Diabetea tea™ (DT) is an anti-diabetic alternative medicine in some Asian countries. The main constituent of DT is black tea originating from Camellia sinensis that is supplemented by 12 other medicinal plants. Black tea contains a large amount of the flavonoids catechins especially epigallocatechin gallate (EGCG) which has anti-inflammatory and antioxidative capacity. This study was undertaken to evaluate the possible effects of DT intake on inflammatory cytokines, regulatory T cells (Tregs) and metabolic biomarkers in T2DM. MATERIALS AND METHODS The study included 50 patients with T2DM. The patients had received 3 cups (600ml) of DT extract or placebo (PL) extract per day during a period of 12 weeks. Intracellular cytokine expression in peripheral blood mononuclear cell (PBMC) as well as the glycemic and lipid profiles were measured at baseline and after the treatment period. The active constituents of the medicinal plants included in DT were investigated by gas chromatography-mass spectrometry (GC/MS). RESULTS Ingestion of DT suppressed CD4+ T cell expression of IL-1β and Il-8 (p<0.05) and up-regulated the expression of IL-10 and the Treg/IL-17 ratio (p<0.05) which was not shown in PL. A significant decrease in HbA1c and LDL was observed at the end of the study period (p<0.05) in DT. The GC/MS analyses of DT indicated the presence of lupeol, β-Amyrin and β-sitosterol. Also analyses of individual herbs showed the presence of higher levels of lupeol and β-Amyrin in Nuga Ficus bengalensis and β-sitosterol in the Attikka Ficus racemosa, indicating that the active ingredients of DT are concentrated in these two herbs. CONCLUSION The present study provides evidence that DT has hypoglycemic and antihyperlipidemic properties. Interestingly, DT has anti-inflammatory effects. These properties are attributed to the flavonoids, triterpenes and phytosterol contents of the tea. We suggest that DT protects against diabetes complications in the long term.
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Affiliation(s)
- Fadia Mahmoud
- Department of Medical Laboratory Sciences, Faculty of Allied Health Sciences, Kuwait University, Kuwait.
| | - Ebaa Al-Ozairi
- Department of Medicine, Faculty of Medicine, Kuwait University, Kuwait.
| | - David Haines
- Summative Synergy Pharmaceutical Group (SSPG) LLC, San Diego California, USA.
| | - Ladislav Novotny
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Kuwait University, Kuwait.
| | - Ali Dashti
- Department of Medical Laboratory Sciences, Faculty of Allied Health Sciences, Kuwait University, Kuwait.
| | - Basel Ibrahim
- Department of Medical Laboratory Sciences, Faculty of Allied Health Sciences, Kuwait University, Kuwait.
| | - Mohamed Abdel-Hamid
- Faculty of Pharmacy, Department of Pharmacology, University of Debrecen, Debrecen, Hungary.
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Shimakawa Y, Bonnard P, El Kassas M, Abdel-Hamid M, Esmat G, Fontanet A. Diagnostic accuracy of the γ-glutamyl transpeptidase to platelet ratio to predict liver fibrosis in Egyptian patients with HCV genotype 4. Gut 2016; 65:1577-8. [PMID: 27390304 DOI: 10.1136/gutjnl-2016-312326] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Accepted: 06/20/2016] [Indexed: 12/08/2022]
Affiliation(s)
- Yusuke Shimakawa
- Unité d'Épidémiologie des Maladies Émergentes, Institut Pasteur, Paris, France
| | | | - Mohamed El Kassas
- Endemic Medicine Department, Faculty of Medicine, Helwan University, Cairo, Egypt
| | - Mohamed Abdel-Hamid
- Department of Microbiology, Faculty of Medicine, Minia University, El Minia, Egypt Viral Hepatitis Research Laboratory, National Hepatology and Tropical Medicine Research Institute, Cairo, Egypt
| | - Gamal Esmat
- Endemic Medicine Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Arnaud Fontanet
- Unité d'Épidémiologie des Maladies Émergentes, Institut Pasteur, Paris, France Département d'Infection et Epidémiologie, Conservatoire National des Arts et Métiers, Paris, France
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Ezzat S, Rashed WM, Salem S, Dorak MT, El-Daly M, Abdel-Hamid M, Sidhom I, El-Hadad A, Loffredo C. Environmental, maternal, and reproductive risk factors for childhood acute lymphoblastic leukemia in Egypt: a case-control study. BMC Cancer 2016; 16:662. [PMID: 27544685 PMCID: PMC4992254 DOI: 10.1186/s12885-016-2689-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 08/08/2016] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Acute lymphocytic leukemia (ALL) is the most common pediatric cancer. The exact cause is not known in most cases, but past epidemiological research has suggested a number of potential risk factors. This study evaluated associations between environmental and parental factors and the risk for ALL in Egyptian children to gain insight into risk factors in this developing country. METHODS We conducted a case-control design from May 2009 to February 2012. Cases were recruited from Children's Cancer Hospital, Egypt (CCHE). Healthy controls were randomly selected from the general population to frequency-match the cumulative group of cases by sex, age groups (<1; 1 - 5; >5 - 10; >10 years) and region of residence (Cairo metropolitan region, Nile Delta region (North), and Upper Egypt (South)). Mothers provided answers to an administered questionnaire about their environmental exposures and health history including those of the father. Odds ratios (ORs) and 95 % confidence intervals (CI) were calculated using logistic regression with adjustment for covariates. RESULTS Two hundred ninety nine ALL cases and 351 population-based controls frequency-matched for age group, gender and location were recruited. The risk of ALL was increased with the mother's use of medications for ovulation induction (ORadj = 2.5, 95 % CI =1.2 -5.1) and to a lesser extend with her age (ORadj = 1.8, 95 % CI = 1.1 - 2.8, for mothers ≥ 30 years old). Delivering the child by Cesarean section, was also associated with increased risk (ORadj = 2.01, 95 % CI =1.24-2.81). CONCLUSIONS In Egypt, the risk for childhood ALL appears to be associated with older maternal age, and certain maternal reproductive factors.
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Affiliation(s)
- Sameera Ezzat
- National Liver Institute, Menoufia University, Shibin El Kom, Egypt
| | - Wafaa M. Rashed
- Children’s Cancer Hospital 57357, El Sayeda Zeinab, Cairo, 11441 Egypt
| | - Sherin Salem
- Children’s Cancer Hospital 57357, El Sayeda Zeinab, Cairo, 11441 Egypt
- National Cancer Institute, Cairo University, Cairo, Egypt
| | - M. Tevfik Dorak
- School of Health Sciences, Liverpool Hope University, Liverpool, UK
| | - Mai El-Daly
- National Liver Institute, Menoufia University, Shibin El Kom, Egypt
| | | | - Iman Sidhom
- Children’s Cancer Hospital 57357, El Sayeda Zeinab, Cairo, 11441 Egypt
- National Cancer Institute, Cairo University, Cairo, Egypt
| | - Alaa El-Hadad
- Children’s Cancer Hospital 57357, El Sayeda Zeinab, Cairo, 11441 Egypt
- National Cancer Institute, Cairo University, Cairo, Egypt
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Abdelrahim SS, Khairy R, Esmail MAM, Ragab M, Abdel-Hamid M, Abdelwahab SF. Occult hepatitis C virus infection among Egyptian hemodialysis patients. J Med Virol 2016; 88:1388-93. [PMID: 26743014 DOI: 10.1002/jmv.24467] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [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] [Accepted: 01/05/2016] [Indexed: 02/05/2023]
Abstract
Occult hepatitis C virus (HCV) infection (OCI) was reported in an apparently disease-free state in the absence of liver disease, anti-HCV and HCV-RNA in the serum. The existing data examining the clinical significance of OCI and its potential as a source of HCV infection among hemodialysis patients are very limited. We examined the presence of OCI among patients on maintenance hemodialysis at Minia Governorate, Egypt; an HCV endemic country. A total of 81 subjects with negative markers for HCV were enrolled. HCV-RNA was tested in PBMCs by real-time PCR. For the 81 subjects, the average dialysis duration was 32.7 ± 21.7 months and the average ALT level (±SD) was 26 ± 12 U/L while that of AST was 29 ± 16 U/L. Out of the 81 subjects, three (3.7%) were HCV-RNA positive in PBMCs in the absence of serum anti-HCV and HCV-RNA indicating OCI. The viral load of the OCI subjects ranged from 172 to 4150 IU/ml. History of liver disease was positive in one of the three positive patients. These results highlight the potential risk of HCV transmission from patients within hemodialysis units in Egypt. J. Med. Virol. 88:1388-1393, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Soha S Abdelrahim
- Department of Microbiology and Immunology, Faculty of Medicine, Minia University, Minia, Egypt
| | - Rasha Khairy
- Department of Microbiology and Immunology, Faculty of Medicine, Minia University, Minia, Egypt
| | - Mona Abdel-Monem Esmail
- Department of Microbiology and Immunology, Faculty of Medicine, Minia University, Minia, Egypt
| | - Mahmoud Ragab
- Department of Internal Medicine, Faculty of Medicine, Minia University, Minia, Egypt
| | - Mohamed Abdel-Hamid
- Department of Microbiology and Immunology, Faculty of Medicine, Minia University, Minia, Egypt
| | - Sayed F Abdelwahab
- Department of Microbiology and Immunology, Faculty of Medicine, Minia University, Minia, Egypt
- Department of Microbiology, Taif Faculty of Pharmacy, Al-Haweiah, Taif, Kingdom of Saudi Arabia
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25
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Mostafa A, Shimakawa Y, Medhat A, Mikhail NN, Chesnais CB, Arafa N, Bakr I, El Hoseiny M, El-Daly M, Esmat G, Abdel-Hamid M, Mohamed MK, Fontanet A. Excess mortality rate associated with hepatitis C virus infection: A community-based cohort study in rural Egypt. J Hepatol 2016; 64:1240-6. [PMID: 26921686 DOI: 10.1016/j.jhep.2016.02.033] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Revised: 02/12/2016] [Accepted: 02/16/2016] [Indexed: 12/28/2022]
Abstract
BACKGROUND & AIMS >80% of people chronically infected with hepatitis C virus (HCV) live in resource-limited countries, yet the excess mortality associated with HCV infection in these settings is poorly documented. METHODS Individuals were recruited from three villages in rural Egypt in 1997-2003 and their vital status was determined in 2008-2009. Mortality rates across the cohorts were compared according to HCV status: chronic HCV infection (anti-HCV antibody positive and HCV RNA positive), cleared HCV infection (anti-HCV antibody positive and HCV RNA negative) and never infected (anti-HCV antibody negative). Data related to cause of death was collected from a death registry in one village. RESULTS Among 18,111 survey participants enrolled in 1997-2003, 9.1% had chronic HCV infection, 5.5% had cleared HCV infection, and 85.4% had never been infected. After a mean time to follow-up of 8.6years, vital status was obtained for 16,282 (89.9%) participants. When compared to those who had never been infected with HCV in the same age groups, mortality rate ratios (MRR) of males with chronic HCV infection aged <35, 35-44, and 45-54years were 2.35 (95% CI 1.00-5.49), 2.87 (1.46-5.63), and 2.22 (1.29-3.81), respectively. No difference in mortality rate was seen in older males or in females. The all-cause mortality rate attributable to chronic HCV infection was 5.7% (95% CI: 1.0-10.1%), while liver-related mortality was 45.5% (11.3-66.4%). CONCLUSIONS Use of a highly potent new antiviral agent to treat all villagers with positive HCV RNA may reduce all-cause mortality rate by up to 5% and hepatic mortality by up to 40% in rural Egypt.
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Affiliation(s)
- Aya Mostafa
- Department of Community, Environmental and Occupational Medicine, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Yusuke Shimakawa
- Unité d'Épidémiologie des Maladies Émergentes, Institut Pasteur, Paris, France
| | - Ahmed Medhat
- Department of Gastroenterology & Tropical Medicine, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Nabiel N Mikhail
- Department of Biostatistics and Cancer Epidemiology, South Egypt Cancer Institute, Assiut University, Assiut, Egypt
| | - Cédric B Chesnais
- Unité d'Épidémiologie des Maladies Émergentes, Institut Pasteur, Paris, France; UMI 233, Institut de Recherche pour le Développement (IRD), Montpellier, France
| | - Naglaa Arafa
- Department of Community, Environmental and Occupational Medicine, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Iman Bakr
- Department of Community, Environmental and Occupational Medicine, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Mostafa El Hoseiny
- Department of Community, Environmental and Occupational Medicine, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Mai El-Daly
- Viral Hepatitis Research Laboratory, National Hepatology and Tropical Medicine Research Institute, Cairo, Egypt; National Liver Institute, Menoufia University, Menoufia, Egypt
| | - Gamal Esmat
- Endemic Medicine Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Mohamed Abdel-Hamid
- Viral Hepatitis Research Laboratory, National Hepatology and Tropical Medicine Research Institute, Cairo, Egypt; Department of Microbiology and Immunology, Faculty of Medicine, Minia University, Minia, Egypt
| | - Mostafa K Mohamed
- Department of Community, Environmental and Occupational Medicine, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Arnaud Fontanet
- Unité d'Épidémiologie des Maladies Émergentes, Institut Pasteur, Paris, France; Département d'Infection et Épidémiologie, Conservatoire National des Arts et Métiers, Paris, France.
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26
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Mazen I, Abdel-Hamid M, Mekkawy M, Bignon-Topalovic J, Boudjenah R, El Gammal M, Essawi M, Bashamboo A, McElreavey K. Identification of NR5A1 Mutations and Possible Digenic Inheritance in 46,XY Gonadal Dysgenesis. Sex Dev 2016; 10:147-51. [PMID: 27169744 DOI: 10.1159/000445983] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Indexed: 11/19/2022] Open
Abstract
The phenotypic spectrum of patients carrying NR5A1 mutations ranges from 46,XY gonadal dysgenesis to male infertility. Phenotypic variability could be due to digenic or oligogenic inheritance of pathogenic variants in other testis-determining genes. Here, exome sequencing identified 2 pathogenic de novo NR5A1 mutations in 2 patients with 46,XY gonadal dysgenesis, p.Q206Tfs*20 and p.Arg313Cys. The latter patient also carried a missense mutation in MAP3K1. Our data extend the number of NR5A1 gene mutations associated with gonadal dysgenesis. The combination of an NR5A1 mutation with a MAP3K1 variant may explain the phenotypic variability associated with NR5A1 mutations.
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Affiliation(s)
- Inas Mazen
- Department of Clinical Genetics, National Research Center, Cairo, Egypt
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27
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Abdel-Hamid M, Tretbar K, Grabemann M, Meyer-Rötz S, Scherbaum N, Jens W, Kis B. Mental health and hearing impairment - A German survey. Eur Psychiatry 2016. [DOI: 10.1016/j.eurpsy.2016.01.1388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
IntroductionOnly few international studies have focused on mental diseases among the hearing-impaired population. However, Fellinger et al. (2012) underline the high discrepancy between the current and future demand of mental treatment and the simultaneous impeded access to health care.AimsThe aim of this multicenter project is to conduct the first analysis of mental diseases among the hearing-impaired population in Germany in order to quantify and qualify the specific demands of treatment.ObjectivesIn order to achieve this aim, we compiled an extensive questionnaire battery.MethodsThis questionnaire battery measured sociodemographic data, non-verbal intelligence, quality of life, perception and suffering from stress, psychosomatic symptoms as well as personality traits.ResultsOur three samples consisted of 21 hearing-impaired patients with a history of mental diseases (EG-HI), 21 hearing-impaired subjects without mental diseases (CG-HI) and 21 hearing participants without any psychological disease (CG-H). Compared to the two control groups, the EG-HI shows significantly higher rates in different fields, i.e. participants perceive a lower quality of life, suffer from more psychosomatic symptoms and show more pronounced personality traits. The two control groups did not differ significantly from each other.ConclusionsCertain psychological characteristics among hearing-impaired patients can be detected which need to be accounted for in treatment. Furthermore, a hearing impairment is not inevitably linked to a reduced quality of life or even mental disorders. Therefore, future research should focus on risk factors and protective factors which could prevent mental diseases among the hearing-impaired population.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Esmail MA, Hassuna NA, Amr KS, Ghazawy ER, Abdel-Hamid M. Polymorphisms at IL28B gene as predictors of viral relapse in genotype 4 Egyptian hepatitis C patients. J Med Virol 2016; 88:481-6. [PMID: 26280154 DOI: 10.1002/jmv.24354] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/07/2015] [Indexed: 12/23/2022]
Abstract
Chronic HCV is one of the commonest causes of chronic liver disease worldwide with about 15% of population infected in Egypt. Certain single nucleotide polymorphisms (SNPs) lying near the IL28B gene were found to affect the spontaneous clearance as well as treatment outcome of HCV. To examine the association between different IL28B variants and the relapse of HCV infection after combined therapy with ribavirin and pegylated interferon (pegIFN). Hundered HCV genotype four patients received 1.5 mg/kg/week peginterferon alfa-2b plus 800-1400 mg/d ribavirin (weight-adjusted) for 48 weeks. IL28B polymorphisms (rs12980275, rs12979860, and 1 rs8099917) were studied in responders and relapsers at week 72. Out of 69 patients receiving treatment, 13 (18.8%) were relapsers. By stratifying patients on the basis of the IL-28/60 genotype (CC vs. CT/TT), CC patients showed lower relapse rates (2.3%) compared with CT/TT patients (46.2%) (P < 0.001). On the basis of the IL-28/75 genotype (GG vs. GA/AA), the GG patients achieved higher relapse rates (62.5%) compared with GA/AA patients (13.1%) (P = 0.004). Moreover, no statistical significant difference was observed between the TT patients compared with GG/GT patients on the basis of the IL-28/17 genotype. SNPs at IL-28/60 and IL-28/75 are possible predictors of relapse in patients receiving dual treatment.
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Affiliation(s)
| | - Noha A Hassuna
- Microbiology and Immunology Department, Faculty of Medicine, Minia University, Egypt
| | | | | | - Mohamed Abdel-Hamid
- Microbiology and Immunology Department, Faculty of Medicine, Minia University, Egypt
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Pedergnana V, Abdel-Hamid M, Guergnon J, Theodorou I, Fontanet A, Abel L, Cobat A. Refined association of melanoma differentiation-associated gene 5 variants with spontaneous hepatitis C virus clearance in Egypt. Hepatology 2016; 63:1059-61. [PMID: 26105514 DOI: 10.1002/hep.27951] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Affiliation(s)
- Vincent Pedergnana
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch Institut National de la Santé et de la Recherche Médicale U1163, Paris, France.,Paris Descartes University, Imagine Institute, Paris, France.,Wellcome Trust Center for Human Genetics, University of Oxford, Oxford, United Kingdom
| | - Mohamed Abdel-Hamid
- Viral Hepatitis Research Laboratory, National Hepatology and Tropical Medicine Research Institute, Cairo, Egypt.,Department of Microbiology, Minia Faculty of Medicine, Minia, Egypt
| | - Julien Guergnon
- Laboratory of Immunity and Infection, Institut National de la Santé et de la Recherche Médicale UMR-S 945, UPMC University Paris 6, Groupe Hospitalier Pitié-Salpêtrière AP-HP, Paris, France
| | - Ioannis Theodorou
- Laboratory of Immunity and Infection, Institut National de la Santé et de la Recherche Médicale UMR-S 945, UPMC University Paris 6, Groupe Hospitalier Pitié-Salpêtrière AP-HP, Paris, France
| | - Arnaud Fontanet
- Institut Pasteur, Unité d'Epidémiologie des Maladies Emergentes, Paris, France.,Conservatoire National des Arts et Métiers, Chaire Santé et Développement, Paris, France
| | - Laurent Abel
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch Institut National de la Santé et de la Recherche Médicale U1163, Paris, France.,Paris Descartes University, Imagine Institute, Paris, France.,St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY
| | - Aurélie Cobat
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch Institut National de la Santé et de la Recherche Médicale U1163, Paris, France.,Paris Descartes University, Imagine Institute, Paris, France
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Mohlman MK, Saleh DA, Ezzat S, Abdel-Hamid M, Korba B, Shetty K, Amr S, Loffredo CA. Viral transmission risk factors in an Egyptian population with high hepatitis C prevalence. BMC Public Health 2015; 15:1030. [PMID: 26446713 PMCID: PMC4596377 DOI: 10.1186/s12889-015-2369-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Accepted: 09/29/2015] [Indexed: 12/13/2022] Open
Abstract
Background Egypt has the world’s highest prevalence of infection with hepatitis C virus (HCV), which is a major cause of hepatocellular carcinoma. The high HCV prevalence is largely attributed to the parenteral antischistosomal therapy (PAT) campaigns conducted from the 1950s through the 1980s; however, the primary modes of transmission in the post-PAT period are not well known. In this study we examined the associations between HCV prevalence and exposures to risk factors, including PAT, in a high HCV prevalence population. Methods Using a cross-sectional design, we examined the associations between demographic characteristics and risk factors for HCV transmission and HCV positivity prevalence among a sample of Egyptian residents. Data were collected through an interview-administered survey, and the association estimates were determined using χ2 and logistic regression. Results The highest HCV positivity prevalence was observed in cohorts born before 1960, and declined precipitously thereafter; whereas the proportion of subjects reporting PAT remained relatively stable. Being male, having a rural residence, and having received PAT were all associated with HCV positivity; however, PAT alone could not account for the high prevalence of HCV. Conclusions In Egypt, PAT and other transmission factors yet to be identified, as well as cohorts born before the 1960s and infected with HCV, are most likely the main contributors to the current HCV endemic.
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Affiliation(s)
- Mary Kate Mohlman
- Lombardi Cancer Center, Georgetown University, 3970 Reservoir Rd, Washington, DC, 20057, USA.
| | | | | | | | - Brent Korba
- Lombardi Cancer Center, Georgetown University, 3970 Reservoir Rd, Washington, DC, 20057, USA.
| | - Kirti Shetty
- Lombardi Cancer Center, Georgetown University, 3970 Reservoir Rd, Washington, DC, 20057, USA.
| | - Sania Amr
- University of Maryland School of Medicine, Baltimore, MD, USA.
| | - Christopher A Loffredo
- Lombardi Cancer Center, Georgetown University, 3970 Reservoir Rd, Washington, DC, 20057, USA.
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31
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Ali-El-Dein B, Laymon M, Zakaria M, Abdel-Raouf R, El-Naggar H, El-Tabey N, El-Hefnawy A, Barakat TS, El-Halwagy S, Abdel-Rahim MA, Abdel-Hamid M, Lotfy Z, Ibrahiem EHI, Shaaban AA. PD23-05 CIRCULATING TUMOR CELLS IN BLADDER CANCER: OPTIMIZATION OF DETECTION AND INVESTIGATION OF THEIR DIAGNOSTIC AND PROGNOSTIC ROLES. J Urol 2015. [DOI: 10.1016/j.juro.2015.02.1421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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32
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Bonnard P, Elsharkawy A, Zalata K, Delarocque-Astagneau E, Biard L, Le Fouler L, Hassan AB, Abdel-Hamid M, El-Daly M, Gamal ME, El Kassas M, Bedossa P, Carrat F, Fontanet A, Esmat G. Comparison of liver biopsy and noninvasive techniques for liver fibrosis assessment in patients infected with HCV-genotype 4 in Egypt. J Viral Hepat 2015; 22:245-53. [PMID: 25073725 DOI: 10.1111/jvh.12285] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2014] [Accepted: 05/22/2014] [Indexed: 12/19/2022]
Abstract
In Egypt, as elsewhere, liver biopsy (LB) remains the gold standard to assess liver fibrosis in chronic hepatitis C (CHC) and is required to decide whether a treatment should be proposed. Many of its disadvantages have led to develop noninvasive methods to replace LB. These new methods should be evaluated in Egypt, where circulating virus genotype 4 (G4), increased body mass index and co-infection with schistosomiasis may interfere with liver fibrosis assessment. Egyptian CHC-infected patients with G4 underwent a LB, an elastometry measurement (Fibroscan(©)), and serum markers (APRI, Fib4 and Fibrotest(©)). Patients had to have a LB ≥15 mm length or ≥10 portal tracts with two pathologists blinded readings to be included in the analysis. Patients with hepatitis B virus co-infection were excluded. Three hundred and twelve patients are reported. The performance of each technique for distinguishing F0F1 vs F2F3F4 was compared. The area under receiver operating characteristic curves was 0.70, 0.76, 0.71 and 0.75 for APRI, Fib-4, Fibrotest© and Fibroscan©, respectively (no influence of schistosomiasis was noticed). An algorithm using the Fib4 for identifying patients with F2 stage or more reduced by nearly 90% the number of liver biopsies. Our results demonstrated that noninvasive techniques were feasible in Egypt, for CHC G4-infected patients. Because of its validity and its easiness to perform, we believe that Fib4 may be used to assess the F2 threshold, which decides whether treatment should be proposed or delayed.
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Affiliation(s)
- P Bonnard
- Infectious Diseases, Hôpital Tenon (AP-HP), Paris, France; Unité INSERM U707, UPMC, Paris, France
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Amr S, Dawson R, Saleh DA, Magder LS, St George DM, El-Daly M, Squibb K, Mikhail NN, Abdel-Hamid M, Khaled H, Loffredo CA. Pesticides, gene polymorphisms, and bladder cancer among Egyptian agricultural workers. Arch Environ Occup Health 2015; 70:19-26. [PMID: 24219772 PMCID: PMC4018465 DOI: 10.1080/19338244.2013.853646] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
UNLABELLED This study examined the associations between pesticide exposure, genetic polymorphisms for NAD(P)H quinone oxidoreductase I (NQO1) and superoxide dismutase 2 (SOD2), and urinary bladder cancer risk among male agricultural workers in Egypt. Logistic regression was used to analyze data from a multicenter case-control study and estimate adjusted odds ratio (OR) and 95% confidence interval (CI). Exposure to pesticides was associated with increased bladder cancer risk (odds ratio (95% confidence interval): 1.68 (1.23-2.29)) in a dose-dependent manner. The association was slightly stronger for urothelial (1.79 (1.25-2.56)) than for squamous cell (1.55 (1.03-2.31)), and among participants with combined genotypes for low NQO1 and high SOD2 (2.14 (1.19-3.85)) activities as compared with those with high NQO1 and low SOD2 genotypes (1.53 (0.73-3.25)). In conclusion, among male agricultural workers in Egypt, pesticide exposure is associated with bladder cancer risk and possibly modulated by genetic polymorphism.
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Affiliation(s)
- Sania Amr
- a Department of Epidemiology and Public Health , University of Maryland School of Medicine , Baltimore , Maryland , USA
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Mohsen A, Bernier A, LeFouler L, Delarocque-Astagneau E, El-Daly M, El-Kafrawy S, El-Mango S, Abdel-Hamid M, Gadallah M, Esmat G, Mohamed MK, Fontanet A. Hepatitis C virus acquisition among Egyptians: analysis of a 10-year surveillance of acute hepatitis C. Trop Med Int Health 2014; 20:89-97. [PMID: 25336067 DOI: 10.1111/tmi.12410] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [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: 12/28/2022]
Abstract
OBJECTIVE To identify current risk factors for hepatitis C virus (HCV) acquisition among Egyptians. METHODS Patients with acute HCV were identified through a surveillance system of acute hepatitis in four fever hospitals in Egypt between 2002 and 2012. Case-control analysis was conducted, cases being incident acute symptomatic HCV and controls being acute hepatitis A identified at the same hospitals. The questionnaire covered iatrogenic, community and household exposures to HCV in the 1-6 months prior to onset of symptoms. Multivariate models were built to identify risk factors associated with HCV acquisition among non-drug users and drug users separately. RESULTS Among non-drug users, hospital admission was independently associated with acute HCV infection (OR = 4.2, 95% CI = 1.7-10.5). Several iatrogenic procedures, for example admission in a surgery unit, sutures, IV injections and IV infusions, highly correlated with hospital admission, were also associated with acute HCV infection and could have been used in the final model instead of hospital admission. Among drug users, identified risk factors were multiple sexual relations (OR = 4.0, 95% CI = 1.1-14.7), intravenous drug use (OR = 3.9, 95% CI = 1.2-13.0) and shaving at the barbershops (OR = 8.7, 95% CI = 2.4-31.4). Illiteracy and marriage were significant risk factors in both groups. CONCLUSION Invasive medical procedures are still a major risk for acquiring new HCV infections in Egypt, as is illicit drug use in spreading HCV infection.
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Affiliation(s)
- Amira Mohsen
- Community Medicine Department, National Research Center, Cairo, Egypt
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35
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Laird ME, Mohsen A, Duffy D, Mamdouh R, LeFouler L, Casrouge A, El-Daly M, Rafik M, Abdel-Hamid M, Soulier A, Pawlotsky JM, Hézode C, Rosa I, Renard P, Mohamed MK, Bonnard P, Izopet J, Mallet V, Pol S, Albert ML, Fontanet A. Apolipoprotein H expression is associated with IL28B genotype and viral clearance in hepatitis C virus infection. J Hepatol 2014; 61:770-6. [PMID: 24905490 DOI: 10.1016/j.jhep.2014.05.040] [Citation(s) in RCA: 10] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Revised: 05/05/2014] [Accepted: 05/25/2014] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS HCV requires host lipid metabolism for replication, and apolipoproteins have been implicated in the response to treatment. METHODS We examined plasma apolipoprotein concentrations in three cohorts of patients: mono-infected patients with symptomatic acute hepatitis C (aHCV); those undergoing treatment for chronic hepatitis C (cHCV); and HIV/HCV co-infected patients being treated for their chronic hepatitis C. We also evaluated associations between apolipoproteins and IL28B polymorphisms, a defined genetic determinant of viral clearance. RESULTS Plasma apolipoprotein H (ApoH) levels were significantly higher in patients who achieved spontaneous clearance or responded to pegylated-interferon/ribavirin therapy. Strikingly, patients carrying the IL28B rs12979860 CC SNP correlated with the plasma concentration of ApoH in all three cohorts. Both ApoH and IL28B CC SNP were associated with HCV clearance in univariate analysis. Additional multivariate analysis revealed that the association between IL28B and HCV clearance was closely linked to that of Apo H and HCV clearance, suggesting that both belong to the same biological pathway to clearance. The association between IL28B CC SNP and ApoH was not observed in healthy individuals, suggesting that early post-infection events trigger differential ApoH expression in an IL28B allele dependent manner. CONCLUSIONS This relationship identifies ApoH as the first induced protein quantitative trait associated with IL28B, and characterises a novel host factor implicated in HCV clearance.
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Affiliation(s)
- Melissa E Laird
- Laboratory of Dendritic Cell Immunobiology, Institut Pasteur, Paris, France; INSERM U818, Paris, France
| | - Amira Mohsen
- Community Medicine Department, National Research Center, Cairo, Egypt
| | - Darragh Duffy
- Laboratory of Dendritic Cell Immunobiology, Institut Pasteur, Paris, France; INSERM U818, Paris, France
| | - Rasha Mamdouh
- Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Lenaig LeFouler
- Emerging Disease Epidemiology Unit, Institut Pasteur, Paris, France
| | - Armanda Casrouge
- Laboratory of Dendritic Cell Immunobiology, Institut Pasteur, Paris, France; INSERM U818, Paris, France
| | - Mai El-Daly
- Liver Disease Research Unit, National Hepatology & Tropical Medicine Research Institute, Cairo, Egypt
| | - Mona Rafik
- Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Mohamed Abdel-Hamid
- Liver Disease Research Unit, National Hepatology & Tropical Medicine Research Institute, Cairo, Egypt; Faculty of Medicine, Minia University, Egypt
| | - Alexandre Soulier
- National Reference Center for Viral Hepatitis B, C, and D, Department of Virology, Hôpital Henri Mondor, Université Paris-Est, Créteil, France; INSERM U955, Créteil, France
| | - Jean-Michel Pawlotsky
- National Reference Center for Viral Hepatitis B, C, and D, Department of Virology, Hôpital Henri Mondor, Université Paris-Est, Créteil, France; INSERM U955, Créteil, France
| | - Christophe Hézode
- INSERM U955, Créteil, France; Department of Hepatology and Gastroenterology, Hôpital Henri Mondor, Université Paris-Est, Créteil, France
| | - Isabelle Rosa
- INSERM U955, Créteil, France; Department of Hepatology and Gastroenterology, Hôpital Henri Mondor, Université Paris-Est, Créteil, France
| | - Philippe Renard
- Department of Gastroenterology and Hepatology, Hôpital Victor Dupouy, Argenteuil, France
| | - Mostafa K Mohamed
- Liver Disease Research Unit, National Hepatology & Tropical Medicine Research Institute, Cairo, Egypt
| | - Philippe Bonnard
- Maladies Infectieuses et Tropicales, Hôpital Tenon (APHP), Paris, France; INSERM U-707, UPMC, Paris, France
| | - Jacques Izopet
- Department of Virology, CHU Toulouse, Toulouse, France; INSERM U1043, IFR-BMT, Toulouse, France
| | - Vincent Mallet
- Université Paris Descartes, Paris, France; Institut Cochin, INSERM (IMR-S1016), CNRS (UMR 8104), Paris, France; Assistance Publique - Hôpitaux de Paris (APHP), Groupe Hospitalier Cochin Saint-Vincent de Paul, Unité d'Hepatologie, Paris, France
| | - Stanislas Pol
- Université Paris Descartes, Paris, France; Institut Cochin, INSERM (IMR-S1016), CNRS (UMR 8104), Paris, France; Assistance Publique - Hôpitaux de Paris (APHP), Groupe Hospitalier Cochin Saint-Vincent de Paul, Unité d'Hepatologie, Paris, France
| | - Matthew L Albert
- Laboratory of Dendritic Cell Immunobiology, Institut Pasteur, Paris, France; INSERM U818, Paris, France; Assistance Publique - Hôpitaux de Paris (APHP), Groupe Hospitalier Cochin Saint-Vincent de Paul, Unité d'Hepatologie, Paris, France.
| | - Arnaud Fontanet
- Emerging Disease Epidemiology Unit, Institut Pasteur, Paris, France; Conservatoire National des Arts et Métiers, Paris, France.
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Mazen I, Ismail S, Amr K, El Gammal M, Abdel-Hamid M. Hereditary 1,25-dihydroxyvitamin D-resistant rickets with alopecia in four Egyptian families: report of three novel mutations in the vitamin D receptor gene. J Pediatr Endocrinol Metab 2014; 27:873-8. [PMID: 24859502 DOI: 10.1515/jpem-2013-0443] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Accepted: 04/01/2014] [Indexed: 11/15/2022]
Abstract
OBJECTIVE To study the vitamin D receptor (VDR) gene in five Egyptian patients with severe rickets and the clinical features of hereditary vitamin D-resistant rickets, including hypocalcemia, hypophosphatemia, total alopecia, and elevated serum levels of 1,25-dihydroxyvitamin D. STUDY DESIGN We amplified and sequenced DNA samples from blood from the patients, their parents, and available family members. RESULTS DNA sequence analyses of the VDR gene showed three novel mutations (p.Y295X, p.R343C, and p.R391H) and a previously reported one (p.R30X) in four patients, whereas no mutation was found in one patient. Mutations cosegregated perfectly with affected individuals in all families, and did not exist in unaffected family members or 200 ethnically matched chromosomes. CONCLUSION Three novel deleterious mutations in the VDR ligand-binding domain were identified, which are expected to render the VDR nonfunctional. Successful treatment with frequent high doses of oral calcium and calcidol was evident in all patients; however, hair growth occurred only in one patient.
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Breban R, Arafa N, Leroy S, Mostafa A, Bakr I, Tondeur L, Abdel-Hamid M, Doss W, Esmat G, Mohamed MK, Fontanet A. Effect of preventive and curative interventions on hepatitis C virus transmission in Egypt (ANRS 1211): a modelling study. Lancet Glob Health 2014; 2:e541-e549. [PMID: 25304421 DOI: 10.1016/s2214-109x(14)70188-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Most hepatitis C virus (HCV) transmission in Egypt is related to medical injections and procedures. To control the spread of HCV, the Egyptian Ministry of Health initiated awareness and education campaigns, strengthened infection control in health-care facilities, and subsidised anti-HCV treatment. We aimed to investigate the effect of these interventions on the spread of HCV by mathematical modelling. METHODS We developed a mathematical model of HCV transmission in Zawyat Razin, a typical rural community. Our model assumes that each individual has two distinct types of medical procedures: injections and more invasive medical procedures. To quantify the severity of the spread of HCV, we used the notion of the basic reproduction number R0, a standard threshold parameter signalling whether transmission of an infectious disease is self-sustained and maintains an epidemic. If R0 is greater than 1, HCV is self-sustained; if R0 is 1 or less, HCV transmission is not self-sustained. We investigated whether heterogeneity in the rate of injection or invasive medical procedures is the determinant factor for HCV transmission and whether most iatrogenic transmission is caused by a small group of individuals who receive health-care interventions frequently. We then assessed whether interventions targeted at this group could reduce the spread of HCV. FINDINGS The R0 of the spread of HCV without treatment was 3·54 (95% CI 1·28-6·18), suggesting a self-sustained spread. Furthermore, the present national treatment programme only decreased R0 from 3·54 to 3·03 (95% CI 1·10-5·25). Individuals with high rates of medical injections seem to be responsible for the spread of HCV in Egypt; the R0 of the spread of HCV without treatment would be 0·64 (95% CI 0·41-0·93) if everybody followed the average behaviour. The effect of treatment on HCV transmission is greatly enhanced if treatment is provided a mean of 2·5 years (95% CI 0·1-9·2) after chronic infection and with drug regimens with more than 80% efficacy. With these treatment parameters, preventive and curative interventions targeting individuals with high rates of medical injections might decrease R0 below 1 for treatment coverage lower than 5%. INTERPRETATION Targeting preventive and curative interventions to individuals with high rates of medical injections in Egypt would result in a greater reduction the spread of HCV than would untargeted allocation. Such an approach might prove beneficial in other resource-limited countries with health-care-driven epidemics. FUNDING Agence Nationale de Recherche sur le SIDA et les Hépatites Virales (ANRS 1211), ANR grant Labex Integrative Biology of Emerging Infectious Diseases.
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Affiliation(s)
- Romulus Breban
- Institut Pasteur, Emerging Diseases Epidemiology Unit, Paris, France.
| | | | - Sandrine Leroy
- Institut Pasteur, Emerging Diseases Epidemiology Unit, Paris, France
| | | | | | - Laura Tondeur
- Institut Pasteur, Emerging Diseases Epidemiology Unit, Paris, France
| | - Mohamed Abdel-Hamid
- National Hepatology and Tropical Medicine Research Institute, Cairo, Egypt; Minia University, Minia, Egypt
| | | | | | | | - Arnaud Fontanet
- Institut Pasteur, Emerging Diseases Epidemiology Unit, Paris, France; Conservatoire National des Arts et Métiers, Paris, France
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Zaki ME, Amr KS, Abdel-Hamid M. Evaluating the association of APOA2 polymorphism with insulin resistance in adolescents. Meta Gene 2014; 2:366-73. [PMID: 25606421 PMCID: PMC4287816 DOI: 10.1016/j.mgene.2014.04.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Revised: 04/21/2014] [Accepted: 04/22/2014] [Indexed: 12/26/2022] Open
Abstract
Background 265T>C SNP in the APOA-II gene promoter may be associated with obesity risk and insulin resistance (IR). This study aims to analyze the association between the APOA2 − 265T>C SNP and risk for obesity and IR in adolescents. Material and methods The study was conducted on 500 adolescents. They were 240 obese and 260 non-obese individuals, aged 16–21 years old. Their mean age was 18.25 ± 2.54 years. Variables examined body weight, height, waist circumference (WC), systolic and diastolic blood pressure (BP), body fat percentage (BF%), and abdominal visceral fat layer. Homeostasis Model Assessment of Insulin Resistance (HOMA-IR) was used as a biomarker for IR. BF% was assessed by body composition analyzer and abdominal visceral fat thickness was determined by ultrasonography. The APOA2 − 265T>C polymorphism genotype was analyzed by PCR amplification of a 273-bp fragment. Results Genotype frequencies were in Hardy–Weinberg equilibrium. The frequency of the mutant C allele was significantly higher in obese cases than non-obese cases. After multivariate adjustment, waist, BF%, visceral adipose layer and HOMA-IR were significantly higher in homozygous allele CC carriers than TT + TC carriers. Homozygous individuals for the CC allele had statistically higher values of energy intake, total fat (g/day) and saturated fat (SATFAT) than carriers of the T allele. Conclusions Homozygous individuals for the C allele had higher obesity risk than carriers of the T allele and had elevated levels of visceral adipose tissue. Moreover, the present study shows that the CC polymorphism is associated with the development of IR [OR 1.89 (1.35–2.91), P = .012] and remains significant after adjusting for gender, age and body mass index.
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Affiliation(s)
- Moushira Erfan Zaki
- Biological Anthropology Department, Medical Research Division, National Research Centre, Egypt
| | - Khalda Sayed Amr
- Medical Molecular Genetics Department, Human Genetics and Genome Research Division, National Research Centre, Egypt
| | - Mohamed Abdel-Hamid
- Medical Molecular Genetics Department, Human Genetics and Genome Research Division, National Research Centre, Egypt
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Duffy D, Mamdouh R, Laird M, Soneson C, Le Fouler L, El-Daly M, Casrouge A, Decalf J, Abbas A, Eldin NS, Fontes M, Abdel-Hamid M, Mohamed MK, Rafik M, Fontanet A, Albert ML. The ABCs of viral hepatitis that define biomarker signatures of acute viral hepatitis. Hepatology 2014; 59:1273-82. [PMID: 24500966 DOI: 10.1002/hep.26901] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Accepted: 10/11/2013] [Indexed: 12/13/2022]
Abstract
UNLABELLED Viral hepatitis is the leading cause of liver disease worldwide and can be caused by several agents, including hepatitis A (HAV), B (HBV), and C (HCV) virus. We employed multiplexed protein immune assays to identify biomarker signatures of viral hepatitis in order to define unique and common responses for three different acute viral infections of the liver. We performed multianalyte profiling, measuring the concentrations of 182 serum proteins obtained from acute HAV- (18), HBV- (18), and HCV-infected (28) individuals, recruited as part of a hospital-based surveillance program in Cairo, Egypt. Virus-specific biomarker signatures were identified and validation was performed using a unique patient population. A core signature of 46 plasma proteins was commonly modulated in all three infections, as compared to healthy controls. Principle component analysis (PCA) revealed a host response based upon 34 proteins, which could distinguish HCV patients from HAV- and HBV-infected individuals or healthy controls. When HAV and HBV groups were compared directly, 34 differentially expressed serum proteins allowed the separation of these two patient groups. A validation study was performed on an additional 111 patients, confirming the relevance of our initial findings, and defining the 17 analytes that reproducibly segregated the patient populations. CONCLUSIONS This combined discovery and biomarker validation approach revealed a previously unrecognized virus-specific induction of host proteins. The identification of hepatitis virus specific signatures provides a foundation for functional studies and the identification of potential correlates of viral clearance.
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Affiliation(s)
- Darragh Duffy
- Laboratory of Dendritic Cells Immunobiology, Institut Pasteur, Paris, France; INSERM U818, Paris, France
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Zepf FD, Sánchez CL, Biskup CS, Kötting WF, Bubenzer S, Helmbold K, Eisert A, Gaber TJ, Landgraf M, Dahmen B, Poustka F, Wöckel L, Stadler C, Grabemann M, Mette C, Heinrich V, Uekermann J, Abdel-Hamid M, Kis B, Zimmermann M, Wiltfang J, Kuhn CM. Acute tryptophan depletion - converging evidence for decreasing central nervous serotonin synthesis in rodents and humans. Acta Psychiatr Scand 2014; 129:157-9. [PMID: 24237607 DOI: 10.1111/acps.12215] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- F D Zepf
- Clinic for Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, RWTH Aachen University, Aachen, Germany; JARA Translational Brain Medicine, Aachen, Jülich, Germany; Institute for Neuroscience and Medicine, Jülich Research Centre, Jülich, Germany.
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Féray C, Bouscaillou J, Falissard B, Mohamed MK, Arafa N, Bakr I, El-Hoseiny M, Daly ME, El-Kafrawy S, Plancoulaine S, Abdel-Hamid M, Thiers V, Fontanet A. A novel method to identify routes of hepatitis C virus transmission. PLoS One 2014; 9:e86098. [PMID: 24465895 PMCID: PMC3900465 DOI: 10.1371/journal.pone.0086098] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Accepted: 12/04/2013] [Indexed: 01/18/2023] Open
Abstract
Background We propose a new approach based on genetic distances among viral strains to infer about risk exposures and location of transmission at population level. Methods We re-analysed 133 viral sequences obtained during a cross-sectional survey of 4020 subjects living in a hepatitis C virus (HCV) endemic area in 2002. A permutation test was used to analyze the correlation between matrices of genetic distances in the NS5b region of all pairwise combinations of the 133 viral strains and exposure status (jointly exposed or not) to several potential HCV risk factors. Results Compared to subjects who did not share the same characteristics or iatrogenic exposures, the median Kimura genetic distances of viral strains were significantly smaller between brothers and sisters (0.031 versus 0.102, P<0.001), mother and child (0.044 versus 0.102, P<0.001), father and child (0.045 versus 0.102, P<0.001), or subjects exposed to periodontal treatment (0.084 versus 0.102, P = 0.02). Conversely, viral strains were more divergent between subjects exposed to blood transfusions (0.216 versus 0.102, P = 0.04) or tooth filling or extraction (0.108, versus 0.097, P = 0.05), suggesting acquisition of the virus outside of the village. Conclusion This method provided insights on where infection took place (household, village) for several socio-demographic characteristics or iatrogenic procedures, information of great relevance for targeting prevention interventions. This method may have interesting applications for virologists and epidemiologists studying transmission networks in health-care facilities or among intravenous drug users.
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Affiliation(s)
- Cyrille Féray
- Inserm 955, Hopital Henri Mondor, Créteil, France
- * E-mail:
| | - Julie Bouscaillou
- Institut Pasteur, Unité d’Epidémiologie des Maladies Emergentes, Paris, France
| | | | - Mostafa K. Mohamed
- Department of Community, Environmental and Occupational Medicine, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Naglaa Arafa
- Department of Community, Environmental and Occupational Medicine, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Iman Bakr
- Department of Community, Environmental and Occupational Medicine, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Mostafa El-Hoseiny
- Department of Community, Environmental and Occupational Medicine, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Mai El Daly
- National Liver Institute, Menoufia University, Shebeen El-Kom, Menufia, Egypt
- Viral Hepatitis Research Laboratory, National Hepatology and Tropical Medicine Research Institute, Cairo, Egypt
| | - Sherif El-Kafrawy
- National Liver Institute, Menoufia University, Shebeen El-Kom, Menufia, Egypt
- Viral Hepatitis Research Laboratory, National Hepatology and Tropical Medicine Research Institute, Cairo, Egypt
| | | | - Mohamed Abdel-Hamid
- Viral Hepatitis Research Laboratory, National Hepatology and Tropical Medicine Research Institute, Cairo, Egypt
- Department of Microbiology, Faculty of Medicine, Minia University, Minya, Egypt
| | - Valérie Thiers
- Unité INSERM 785, Centre Hépato-Biliaire, Villejuif, France
| | - Arnaud Fontanet
- Institut Pasteur, Unité d’Epidémiologie des Maladies Emergentes, Paris, France
- Conservatoire National des Arts et Métiers, Chaire Santé et Développement, Paris, France
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Goerlitz D, Amr S, Dash C, Saleh DA, El Daly M, Abdel-Hamid M, El Kafrawy S, Hifnawy T, Ezzat S, Abdel-Aziz MA, Khaled H, Zheng YL, Mikhail N, Loffredo CA. Genetic polymorphisms in NQO1 and SOD2: interactions with smoking, schistosoma infection, and bladder cancer risk in Egypt. Urol Oncol 2014; 32:47.e15-20. [PMID: 24035474 PMCID: PMC3885358 DOI: 10.1016/j.urolonc.2013.06.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2013] [Revised: 06/27/2013] [Accepted: 06/27/2013] [Indexed: 11/21/2022]
Abstract
BACKGROUND Bladder cancer is the most prevalent form of cancer in men among Egyptians, for whom tobacco smoke exposure and Schistosoma haematobium (SH) infection are the major risk factors. We hypothesized that functional polymorphisms in NAD(P)H quinone oxidoreductase 1 (NQO1) and superoxide dismutase 2 (SOD2), modulators of the effects of reactive oxidative species, can influence an individual's susceptibility to these carcinogenic exposures and hence the risk of bladder cancer. METHODS We assessed the effects of potential interactions between functional polymorphisms in the NQO1 and SOD2 genes and exposure to smoking and SH infection on bladder cancer risk among 902 cases and 804 population-based controls in Egypt. We used unconditional logistic regression to estimate the odds ratios (OR) and confidence intervals (CI) 95%. RESULTS Water pipe and cigarette smoking were more strongly associated with cancer risk among individuals with the TT genotype for SOD2 (OR [CI 95%] = 4.41 [1.86-10.42]) as compared with those with the CC genotype (OR [CI 95%] = 2.26 [0.97-6.74]). Conversely, the risk associated with SH infection was higher among the latter (OR [CI 95%] = 3.59 [2.21-5.84]) than among the former (OR [CI 95%] = 1.86 [1.33-2.60]). Polymorphisms in NQO1 genotype showed a similar pattern, but to a much lesser extent. The highest odds for having bladder cancer following SH infection were observed among individuals with the CC genotypes for both NQO1 and SOD2 (OR [CI 95%] = 4.41 [2.32-8.38]). CONCLUSION Our findings suggest that genetic polymorphisms in NQO1 and SOD2 play important roles in the etiology of bladder cancer by modulating the effects of known contributing factors such as smoking and SH infection.
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Affiliation(s)
- David Goerlitz
- Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC
| | - Sania Amr
- Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD
| | - Chiranjeev Dash
- Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC
| | - Doa'a A Saleh
- Department of Public Health, Cairo University, Cairo, Egypt
| | - Mai El Daly
- Department of Microbiology, National Hepatology and Tropical Medicine Research Institute, Cairo, Egypt; National Liver Institute, Menoufiya University, Shibin El Kom, Egypt
| | - Mohamed Abdel-Hamid
- Department of Microbiology, National Hepatology and Tropical Medicine Research Institute, Cairo, Egypt; Department of Microbiology, Minia University, Minia, Egypt
| | - Sherif El Kafrawy
- Department of Microbiology, National Hepatology and Tropical Medicine Research Institute, Cairo, Egypt; National Liver Institute, Menoufiya University, Shibin El Kom, Egypt; King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Tamer Hifnawy
- Public Health Department, Beni Suif University, Beni Suif, Egypt
| | - Sameera Ezzat
- National Liver Institute, Menoufiya University, Shibin El Kom, Egypt
| | | | - Hussein Khaled
- Department of Medical Oncology, National Cancer Institute, Cairo, Egypt
| | - Yun-Ling Zheng
- Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC
| | - Nabiel Mikhail
- Department of Microbiology, National Hepatology and Tropical Medicine Research Institute, Cairo, Egypt; Department of Urology, Assiut University, Assiut, Egypt
| | - Christopher A Loffredo
- Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC.
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Abdel-Hamid M, Grabemann M, Kownatka M, Zwarg T, Esselmann H, Zimmermann M, Mette C, Wiltfang J, Kis B. “The Star Trek Universe”: The change in perception of mental disease and its treatment during the last five decades. Pharmacopsychiatry 2013. [DOI: 10.1055/s-0033-1353358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Zimmermann M, Mette C, Grabemann M, Abdel-Hamid M, Zepf F, Wiltfang J, Kis B. The impact of 5-HT on neuropsychological trajectories of adult ADHD. Pharmacopsychiatry 2013. [DOI: 10.1055/s-0033-1353324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Zaki M, Amr K, Abdel-Hamid M. PP118-SUN ASSOCIATION BETWEEN APOLIPOPROTEIN A-II (APOA2) POLYMORPHISM AND INSULIN RESISTANCE IN OBESE ADOLESCENTS. Clin Nutr 2013. [DOI: 10.1016/s0261-5614(13)60163-6] [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: 10/26/2022]
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Grabemann M, Mette C, Zimmermann M, Heinrich V, Uekermann J, Wiltfang J, Abdel-Hamid M, Zepf FD, Kis B. No clear effects of acute tryptophan depletion on processing affective prosody in male adults with ADHD. Acta Psychiatr Scand 2013; 128:142-8. [PMID: 23581825 DOI: 10.1111/acps.12130] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/26/2013] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Adults with attention deficit hyperactivity disorder (ADHD) have difficulties processing affective prosody, and research evidence demonstrates the importance of brain serotonin (5-HT) in the neurobiology of ADHD. This study aimed to investigate whether diminished brain 5-HT synthesis, as achieved by acute tryptophan depletion (ATD), can impair the processing of affective prosody in adults with ADHD. METHOD Twenty male patients with ADHD and twenty male healthy controls received ATD and a tryptophan-balanced control condition on separate days in a double-blind within-subject repeated measures crossover design. In both conditions, the Tübingen Affect Battery was administered in which subjects had to name the affective prosody of sentences with neutral, congruent, or incongruent semantic content. RESULTS Participants in the group of patients with ADHD perceived affective prosody less accurately than controls. Participants with ADHD showed compromised processing of sentences, committing more errors than healthy controls when identifying affect in instances of incongruent semantic content (P = 0.031). ATD did not contribute to this effect (all P > 0.5). CONCLUSION The difficulties male adults with ADHD have in accurately processing affective prosody may result from impairments in their ability to inhibit unwanted stimuli and impulses. No clear evidence implicates 5-HT as a cause of these impairments.
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Affiliation(s)
- M Grabemann
- Department of Psychiatry and Psychotherapy, University of Duisburg-Essen, LVR Clinics Essen, Essen, Germany.
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Mette C, Zimmermann M, Grabemann M, Abdel-Hamid M, Uekermann J, Biskup CS, Wiltfang J, Zepf FD, Kis B. The impact of acute tryptophan depletion on attentional performance in adult patients with ADHD. Acta Psychiatr Scand 2013; 128:124-32. [PMID: 23419004 DOI: 10.1111/acps.12090] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/03/2013] [Indexed: 12/30/2022]
Abstract
OBJECTIVE To date, the impact of the neurotransmitter serotonin (5-HT) on different neuropsychological functions in adults with attention deficit hyperactivity disorder (ADHD) is underinvestigated. We aimed to examine the effects of acute tryptophan depletion (ATD) and the resulting reduction in central nervous 5-HT synthesis on target/non-target discrimination ability and sustained attention in adults with ADHD using an AX-Continuous Performance Test (AX-CPT). METHOD Twenty male patients with ADHD (age: M = 30.25 SD = 9.37) and twenty male healthy controls (age: M = 27.90 SD = 6.01) received ATD on one day and a tryptophan-balanced control condition (BAL) on another day in a double-blind within-subject crossover design. A continuous performance test (AX-CPT) with three conditions (AX, AY, and BX) was administered on both days under depleted and sham-depleted conditions. RESULTS In patients omissions increased after ATD when compared with BAL. Patient's reaction time decreased after ATD when compared with BAL, which was contrasted by opposite effects in controls. Patients showed fewer correct responses (AX condition) and showed a higher rate of errors (condition AXE ) independent of ATD or BAL intake. CONCLUSION The present preliminary results are indicative of the contribution of serotonergic neurotransmission to attentional processes in adults with ADHD.
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Affiliation(s)
- C Mette
- Department of Psychiatry and Psychotherapy, LVR Clinics Essen, University of Duisburg-Essen, Essen, Germany.
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Munier A, Marzouk D, Abravanel F, El-Daly M, Taylor S, Mamdouh R, Eldin WS, El-Arab HE, Sos DG, Momen M, Okasha O, Le Fouler L, El-Hosini M, Izopet J, Rafik M, Albert M, Abdel-Hamid M, Mohamed MK, Delarocque-Astagneau E, Fontanet A. Frequent transient hepatitis C viremia without seroconversion among healthcare workers in Cairo, Egypt. PLoS One 2013; 8:e57835. [PMID: 23469082 PMCID: PMC3585182 DOI: 10.1371/journal.pone.0057835] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2012] [Accepted: 01/26/2013] [Indexed: 02/06/2023] Open
Abstract
Backgrounds With 10% of the general population aged 15–59 years chronically infected with hepatitis C virus (HCV), Egypt is the country with the highest HCV prevalence worldwide. Healthcare workers (HCWs) are therefore at particularly high risk of HCV infection. Our aim was to study HCV infection risk after occupational blood exposure among HCWs in Cairo. Methodology/Principal Findings The study was conducted in 2008–2010 at Ain Shams University Hospital, Cairo. HCWs reporting an occupational blood exposure at screening, having neither anti-HCV antibodies (anti-HCV) nor HCV RNA, and exposed to a HCV RNA positive patient, were enrolled in a 6-month prospective cohort with follow-up visits at weeks 2, 4, 8, 12 and 24. During follow-up, anti-HCV, HCV RNA and ALT were tested. Among 597 HCWs who reported a blood exposure, anti-HCV prevalence at screening was 7.2%, not different from that of the general population of Cairo after age-standardization (11.6% and 10.4% respectively, p = 0.62). The proportion of HCV viremia among index patients was 37%. Of 73 HCWs exposed to HCV RNA from index patients, nine (12.3%; 95%CI, 5.8–22.1%) presented transient viremia, the majority of which occurred within the first two weeks after exposure. None of the workers presented seroconversion or elevation of ALT. Conclusions/Significance HCWs of a general University hospital in Cairo were exposed to a highly viremic patient population. They experienced frequent occupational blood exposures, particularly in early stages of training. These exposures resulted in transient viremic episodes without established infection. These findings call for further investigation of potential immune protection against HCV persistence in this high risk group.
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Affiliation(s)
- Aline Munier
- Emerging Diseases Epidemiology Unit, Institut Pasteur, Paris, France.
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Duggal P, Thio CL, Wojcik GL, Goedert JJ, Mangia A, Latanich R, Kim AY, Lauer GM, Chung RT, Peters MG, Kirk GD, Mehta SH, Cox AL, Khakoo SI, Alric L, Cramp ME, Donfield SM, Edlin BR, Tobler LH, Busch MP, Alexander G, Rosen HR, Gao X, Abdel-Hamid M, Apps R, Carrington M, Thomas DL. Genome-wide association study of spontaneous resolution of hepatitis C virus infection: data from multiple cohorts. Ann Intern Med 2013; 158:235-45. [PMID: 23420232 PMCID: PMC3638215 DOI: 10.7326/0003-4819-158-4-201302190-00003] [Citation(s) in RCA: 159] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
UNLABELLED Chinese translation BACKGROUND Hepatitis C virus (HCV) infections occur worldwide and either spontaneously resolve or persist and markedly increase the person's lifetime risk for cirrhosis and hepatocellular carcinoma. Although HCV persistence occurs more often in persons of African ancestry and persons with genetic variants near interleukin-28B (IL-28B), the genetic basis is not well-understood. OBJECTIVE To evaluate the host genetic basis for spontaneous resolution of HCV infection. DESIGN 2-stage, genome-wide association study. SETTING 13 international multicenter study sites. PATIENTS 919 persons with serum HCV antibodies but no HCV RNA (spontaneous resolution) and 1482 persons with serum HCV antibodies and HCV RNA (persistence). MEASUREMENTS Frequencies of 792 721 single nucleotide polymorphisms (SNPs). RESULTS Differences in allele frequencies between persons with spontaneous resolution and persistence were identified on chromosomes 19q13.13 and 6p21.32. On chromosome 19, allele frequency differences localized near IL-28B and included rs12979860 (overall per-allele OR, 0.45; P = 2.17 × 10-30) and 10 additional SNPs spanning 55 000 base pairs. On chromosome 6, allele frequency differences localized near genes for HLA class II and included rs4273729 (overall per-allele OR, 0.59; P = 1.71 × 10-16) near DQB1*03:01 and an additional 116 SNPs spanning 1 090 000 base pairs. The associations in chromosomes 19 and 6 were independent and additive and explain an estimated 14.9% (95% CI, 8.5% to 22.6%) and 15.8% (CI, 4.4% to 31.0%) of the variation in HCV resolution in persons of European and African ancestry, respectively. Replication of the chromosome 6 SNP, rs4272729, in an additional 745 persons confirmed the findings (P = 0.015). LIMITATION Epigenetic effects were not studied. CONCLUSION IL-28B and HLA class II are independently associated with spontaneous resolution of HCV infection, and SNPs marking IL-28B and DQB1*03:01 may explain approximately 15% of spontaneous resolution of HCV infection.
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Affiliation(s)
- Priya Duggal
- Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Chloe L. Thio
- Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Genevieve L. Wojcik
- Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - James J. Goedert
- Infections and Immunoepidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland, USA
| | - Alessandra Mangia
- Liver Unit IRCCS “Casa Sollievo della Sofferenza”, 71013 San Giovanni Rotondo, Italy
| | - Rachel Latanich
- Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Arthur Y. Kim
- Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Warren 1019A, 55 Fruit Street, Boston MA, USA
- Ragon Institute of Harvard, Boston, MA, USA
| | - Georg M. Lauer
- Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Warren 1019A, 55 Fruit Street, Boston MA, USA
- Ragon Institute of Harvard, Boston, MA, USA
| | - Raymond T. Chung
- Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Warren 1019A, 55 Fruit Street, Boston MA, USA
- Ragon Institute of Harvard, Boston, MA, USA
| | - Marion G. Peters
- University of California San Francisco, 513 Parnassus Ave S357, San Francisco, CA, USA
| | - Greg D. Kirk
- Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Shruti H. Mehta
- Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Andrea L. Cox
- Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Salim I. Khakoo
- University of Southampton, Mailpoint 811, Level E South Academic Block, Southampton General Hospital, Tremona Road, Southampton, UK
| | | | | | | | | | - Leslie H Tobler
- Viral Reference Laboratory and Repository Core, Blood Systems Research Institute, San Francisco, CA, USA
| | - Michael P. Busch
- Viral Reference Laboratory and Repository Core, Blood Systems Research Institute, San Francisco, CA, USA
| | - Graeme Alexander
- Division of Gastroenetrology & Hepatology, University Department of Medicine, Cambridge University Hospitals NHS Foundation Trust, Addenbrooke’s Hospital, Hill’s Road, Cambridge,, CB2 0QQ, United Kingdom
| | - Hugo R. Rosen
- Department of Medicine, University of Colorado, Denver, Colorado, USA
| | - Xiaojiang Gao
- Cancer and Inflammation Program, Laboratory of Experimental Immunology, SAIC-Frederick, Inc., Frederick National Laboratory for Cancer Research, Frederick, MD
| | - Mohamed Abdel-Hamid
- Department of Microbiology and Immunology, Faculty of Medicine, Minia University and Director, Viral Hepatitis Research Lab National Hepatology and Tropical Disease Research Institute
| | - Richard Apps
- Cancer and Inflammation Program, Laboratory of Experimental Immunology, SAIC-Frederick, Inc., Frederick National Laboratory for Cancer Research, Frederick, MD
| | - Mary Carrington
- Cancer and Inflammation Program, Laboratory of Experimental Immunology, SAIC-Frederick, Inc., Frederick National Laboratory for Cancer Research, Frederick, MD
| | - David L. Thomas
- Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
- Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Habil FE, Mahdi WKM, Abdelwahab SF, Abdel-Hamid M. Hepatitis B virus genotype D predominates HBsAg-positive egyptian blood donors and is mainly associated with a negative HBeAg serostatus. Intervirology 2013; 56:278-83. [PMID: 23887183 DOI: 10.1159/000353105] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Accepted: 04/30/2013] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVES Hepatitis B virus (HBV) infection is a global health burden. In this regard, Egypt has an intermediate HBV seroprevalence. HBV is classified into ten different genotypes (A-J) with different geographic distributions. Genotype D is the most prevalent in the Middle East. Limited data are available about HBV genotyping among Egyptian blood donors, particularly in Upper Egypt. We examined the seroprevalence of HBV among 12,000 blood donors attending the blood transfusion services center in Minia Governorate, Upper Egypt. METHODS HBsAg and HBeAg were examined by ELISA while HBV-DNA was examined by PCR. HBV genotyping was conducted by restriction fragment length polymorphism. RESULTS HBsAg was detected in 237 donors (1.98%). The HBV-DNA of 50 donors with the highest HBsAg OD was examined for the HBV genotype. All 50 DNA-positive samples were of genotype D. 82% of the DNA-positive donors were males, coinciding with their representation in the cohort. ALT levels were normal in 88% of genotyped subjects, while 84% of them were HBeAg negative. CONCLUSION Taken together, these data indicate that HBV genotype D is the predominant genotype among HBsAg-positive blood donors in Upper Egypt and was in >80% of the subjects associated with a negative HBeAg serostatus.
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