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Li X, Wu M, Xia M, Salama M, Sun H, Ding L, Huang X, Shu D, Cai Z. A promising food-grade protector for Retinyl acetate emulsions with fibrillated egg white. Food Chem 2024; 449:139158. [PMID: 38608602 DOI: 10.1016/j.foodchem.2024.139158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 03/23/2024] [Accepted: 03/25/2024] [Indexed: 04/14/2024]
Abstract
This work presents a novel use of fibrous egg white protein (FEWP) in food preservation and nutraceutical applications. In this study, food-grade FEWP was used as an encapsulating material, along with chitosan (CS), to stabilize emulsions. The emulsion system was then used as a delivery system to improve the stability of retinyl acetate (RA). The structural and functional properties, as well as the stability and rheological behavior of the FEWP/CS copolymer, was investigated. The stability of RA-enriched emulsions was also evaluated. FEWP and CS stabilized emulsions exhibited smaller particle size and enhanced stability against different ionic strengths and storage periods. Additionally, RA-encapsulated emulsions stabilized by FEWP:CS (25:1 w/w) effectively inhibited apple browning. This study provides a promising strategy for delivering antioxidant components, highlighting its potential in food preservation and nutraceutical applications.
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Affiliation(s)
- Xiaomeng Li
- Hubei Hongshan Laboratory, National Research and Development Centre for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Mengyao Wu
- Hubei Hongshan Laboratory, National Research and Development Centre for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Minquan Xia
- Hubei Hongshan Laboratory, National Research and Development Centre for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Mohamed Salama
- Hubei Hongshan Laboratory, National Research and Development Centre for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China; Dairy Department, National Research Centre, Giza 12566, Egypt
| | - Haoyang Sun
- Hubei Hongshan Laboratory, National Research and Development Centre for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Lixian Ding
- Hubei Hongshan Laboratory, National Research and Development Centre for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Xi Huang
- Hubei Hongshan Laboratory, National Research and Development Centre for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Dewei Shu
- Zaozhuang Key Laboratory of Egg Nutrition and Health, Zaozhuang Jensur Bio-pharmaceutical Co., Ltd, Shandong 277000, China
| | - Zhaoxia Cai
- Hubei Hongshan Laboratory, National Research and Development Centre for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China.
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Shebl N, Salama M. From metabolomics to proteomics: understanding the role of dopa decarboxylase in Parkinson's disease. Scientific commentary on: "Comprehensive proteomics of CSF, plasma, and urine identify DDC and other biomarkers of early Parkinson's disease". Acta Neuropathol 2024; 147:88. [PMID: 38761253 DOI: 10.1007/s00401-024-02739-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 05/04/2024] [Accepted: 05/05/2024] [Indexed: 05/20/2024]
Affiliation(s)
- Nourhan Shebl
- Institute of Global Health and Human Ecology, The American University in Cairo, Cairo, Egypt
| | - Mohamed Salama
- Institute of Global Health and Human Ecology, The American University in Cairo, Cairo, Egypt.
- Global Brain Health Institute (GBHI), Trinity College Dublin, Dublin 2, Ireland.
- Faculty of Medicine, Mansoura University, El Mansûra, Egypt.
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3
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Baxter MA, Denholm M, Kingdon SJ, Kathirgamakarthigeyan S, Parikh S, Shakir R, Johnson R, Martin H, Walton M, Yao W, Swan A, Samuelson C, Ren X, Cooper A, Gray HL, Clifton S, Ball J, Gullick G, Anderson M, Dodd L, Hayhurst H, Salama M, Shotton R, Britton F, Christodoulou T, Abdul-Hamid A, Eichholz A, Evans RM, Wallroth P, Gibson F, Poole K, Rowe M, Harris J. CAnceR IN PreGnancy (CARING) - a retrospective study of cancer diagnosed during pregnancy in the United Kingdom. Br J Cancer 2024; 130:1261-1268. [PMID: 38383704 PMCID: PMC11014900 DOI: 10.1038/s41416-024-02605-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 01/25/2024] [Accepted: 01/29/2024] [Indexed: 02/23/2024] Open
Abstract
BACKGROUND The incidence of cancer diagnosed during pregnancy is increasing. Data relating to investigation and management, as well as maternal and foetal outcomes is lacking in a United Kingdom (UK) population. METHODS In this retrospective study we report data from 119 patients diagnosed with cancer during pregnancy from 14 cancer centres in the UK across a five-year period (2016-2020). RESULTS Median age at diagnosis was 33 years, with breast, skin and haematological the most common primary sites. The majority of cases were new diagnoses (109 patients, 91.6%). Most patients were treated with radical intent (96 patients, 80.7%), however, gastrointestinal cancers were associated with a high rate of palliative intent treatment (63.6%). Intervention was commenced during pregnancy in 68 (57.1%) patients; 44 (37%) had surgery and 31 (26.1%) received chemotherapy. Live births occurred in 98 (81.7%) of the cases, with 54 (55.1%) of these delivered by caesarean section. Maternal mortality during the study period was 20.2%. CONCLUSIONS This is the first pan-tumour report of diagnosis, management and outcomes of cancer diagnosed during pregnancy in the UK. Our findings demonstrate proof of concept that data collection is feasible and highlight the need for further research in this cohort of patients.
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Affiliation(s)
- M A Baxter
- Division of Molecular and Clinical Medicine, Ninewells Hospital and Medical School, University of Dundee, Dundee, UK.
- Tayside Cancer Centre, Ninewells Hospital and Medical School, NHS Tayside, Dundee, UK.
| | - M Denholm
- Department of Oncology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
- Early Cancer Institute, Department of Oncology, University of Cambridge, Cambridge, UK
| | - S J Kingdon
- Exeter Oncology Centre, Royal Devon University Hospitals NHS Trust, Exeter, UK
| | | | - S Parikh
- Department of Oncology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - R Shakir
- Oncology Department, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - R Johnson
- Oncology Department, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - H Martin
- Department of Oncology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
- Early Cancer Institute, Department of Oncology, University of Cambridge, Cambridge, UK
- Cancer Research UK Cambridge Institute, Cambridge University, Cambridge, UK
| | - M Walton
- Department of Oncology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - W Yao
- Department of Oncology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - A Swan
- Edinburgh Cancer Centre, Western General Hospital, NHS Lothian, Edinburgh, UK
| | - C Samuelson
- Edinburgh Cancer Centre, Western General Hospital, NHS Lothian, Edinburgh, UK
| | - X Ren
- Edinburgh Cancer Centre, Western General Hospital, NHS Lothian, Edinburgh, UK
| | - A Cooper
- Edinburgh Cancer Centre, Western General Hospital, NHS Lothian, Edinburgh, UK
| | - H-L Gray
- Tayside Cancer Centre, Ninewells Hospital and Medical School, NHS Tayside, Dundee, UK
| | - S Clifton
- Bristol Haematology and Oncology Centre, Bristol, UK
| | - J Ball
- Bristol Haematology and Oncology Centre, Bristol, UK
| | - G Gullick
- Oncology Department, Royal United Hospitals NHS Foundation Trust, Bath, UK
| | - M Anderson
- Northern Centre for Cancer Care, The Newcastle Upon Tyne Hospitals NHS Foundation Trust, The Newcastle Upon Tyne, UK
| | - L Dodd
- Northern Centre for Cancer Care, The Newcastle Upon Tyne Hospitals NHS Foundation Trust, The Newcastle Upon Tyne, UK
| | - H Hayhurst
- Northern Centre for Cancer Care, The Newcastle Upon Tyne Hospitals NHS Foundation Trust, The Newcastle Upon Tyne, UK
| | - M Salama
- Department of Oncology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - R Shotton
- Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester, UK
| | - F Britton
- Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester, UK
| | - T Christodoulou
- Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester, UK
| | - A Abdul-Hamid
- Department of Oncology, Royal Surrey County Hospital NHS Trust, Surrey, UK
| | - A Eichholz
- Department of Oncology, Buckinghamshire Healthcare NHS Trust, Buckinghamshire, UK
| | - R M Evans
- South West Wales Cancer Centre, Swansea Bay NHS Trust, Swansea, UK
| | | | - F Gibson
- School of Health Sciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK
- Centre for Outcomes and Experience Research in Children's Health, Illness and Disability, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - K Poole
- The Institute of Cancer Research, Clinical Trials and Statistics Unit, Belmont, Sutton, Surrey, UK
| | - M Rowe
- Sunrise Oncology Centre, Royal Cornwall Hospitals NHS Trust, Truro, UK
| | - J Harris
- School of Health Sciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK
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4
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Badawy MT, Salama AA, Salama M. Novel Variants Linked to the Prodromal Stage of Parkinson's Disease (PD) Patients. Diagnostics (Basel) 2024; 14:929. [PMID: 38732343 PMCID: PMC11083733 DOI: 10.3390/diagnostics14090929] [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: 04/01/2024] [Revised: 04/24/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
BACKGROUND AND OBJECTIVE The symptoms of most neurodegenerative diseases, including Parkinson's disease (PD), usually do not occur until substantial neuronal loss occurs. This makes the process of early diagnosis very challenging. Hence, this research used variant call format (VCF) analysis to detect variants and novel genes that could be used as prognostic indicators in the early diagnosis of prodromal PD. MATERIALS AND METHODS Data were obtained from the Parkinson's Progression Markers Initiative (PPMI), and we analyzed prodromal patients with gVCF data collected in the 2021 cohort. A total of 304 participants were included, including 100 healthy controls, 146 prodromal genetic individuals, 21 prodromal hyposmia individuals, and 37 prodromal individuals with RBD. A pipeline was developed to process the samples from gVCF to reach variant annotation and pathway and disease association analysis. RESULTS Novel variant percentages were detected in the analyzed prodromal subgroups. The prodromal subgroup analysis revealed novel variations of 1.0%, 1.2%, 0.6%, 0.3%, 0.5%, and 0.4% for the genetic male, genetic female, hyposmia male, hyposmia female, RBD male, and RBD female groups, respectively. Interestingly, 12 potentially novel loci (MTF2, PIK3CA, ADD1, SYBU, IRS2, USP8, PIGL, FASN, MYLK2, USP25, EP300, and PPP6R2) that were recently detected in PD patients were detected in the prodromal stage of PD. CONCLUSIONS Genetic biomarkers are crucial for the early detection of Parkinson's disease and its prodromal stage. The novel PD genes detected in prodromal patients could aid in the use of gene biomarkers for early diagnosis of the prodromal stage without relying only on phenotypic traits.
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Affiliation(s)
- Marwa T. Badawy
- Biology Department, School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt;
| | - Aya A. Salama
- Applied Science, Windows and Web Experience, Microsoft, Cairo 11561, Egypt;
| | - Mohamed Salama
- Institute of Global Health and Human Ecology (IGHHE), The American University in Cairo, New Cairo 11835, Egypt
- Toxicology Department, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt
- Global Brain Health Institute, Trinity College Dublin, D02 X9W9 Dublin, Ireland
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5
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Ibanez A, Melloni L, Świeboda P, Hynes W, Ikiz B, Ayadi R, Thioye M, Walss-Bass C, Güntekin B, Mishra J, Salama M, Dunlop S, Duran-Aniotz C, Eyre HA. Neuroecological links of the exposome and One Health. Neuron 2024:S0896-6273(24)00277-0. [PMID: 38723637 DOI: 10.1016/j.neuron.2024.04.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 04/11/2024] [Accepted: 04/12/2024] [Indexed: 05/15/2024]
Abstract
This NeuroView assesses the interplay among exposome, One Health, and brain capital in health and disease. Physical and social exposomes affect brain health, and green brain skills are required for environmental health strategies. Ibanez et al. address current gaps and strategies needed in research, policy, and technology, offering a road map for stakeholders.
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Affiliation(s)
- Agustin Ibanez
- Latin American Brain Health Institute, Universidad Adolfo Ibañez, Santiago de Chile, Chile; Cognitive Neuroscience Center, Universidad de San Andrés, Buenos Aires, Argentina; Global Brain Health Institute (GBHI), University of California, San Francisco, San Francisco, USA; Trinity College Dublin, Dublin, Ireland.
| | - Lucia Melloni
- Department of Neurology, New York University Grossman School of Medicine, New York, USA; Neural Circuits, Consciousness, and Cognition Research Group, Max Planck Institute for Empirical Aesthetics, Frankfurt am Main, Germany
| | - Paweł Świeboda
- International Center for Future Generations (ICFG), Brussels, Belgium; Brain Capital Alliance, San Francisco, CA, USA
| | | | - Burcin Ikiz
- Neuro Climate Working Group, Global Consortium for Climate Health Education, Columbia University, New York, USA
| | - Rym Ayadi
- Euro-Mediterranean Economists Association, Barcelona, Spain
| | - Massamba Thioye
- UNFCCC secretariat, the UN Climate Change Global Innovation Hub, Bonn, Germany
| | - Consuelo Walss-Bass
- Translational Psychiatry Program, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
| | - Bahar Güntekin
- Research Institute for Health Sciences and Technologies (SABITA), Istanbul Medipol University, Istanbul, Turkey; Department of Biophysics, School of Medicine, Istanbul Medipol University, Istanbul, Turkey
| | - Jyoti Mishra
- NEATLabs, Department of Psychiatry, University of California, San Diego, La Jolla, CA, USA
| | - Mohamed Salama
- Institute of Global Health and Human Ecology (I-GHHE), School of Sciences & Engineering (SSE), The American University in Cairo (AUC), New Cairo, Egypt
| | - Sarah Dunlop
- Minderoo Foundation, Perth, WA, Australia; School of Biological Sciences, The University of Western Australia, Perth, WA, Australia
| | - Claudia Duran-Aniotz
- Latin American Brain Health Institute, Universidad Adolfo Ibañez, Santiago de Chile, Chile
| | - Harris A Eyre
- Brain Capital Alliance, San Francisco, CA, USA; Euro-Mediterranean Economists Association, Barcelona, Spain; Center for Health and Biosciences, The Baker Institute for Public Policy, Rice University, Houston, TX, USA; Meadows Mental Health Policy Institute, Dallas, TX, USA; Institute for Mental and Physical Health and Clinical Translation (IMPACT), Deakin University and Barwon Health, Geelong, VIC, Australia; Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston, TX, USA; Department of Psychiatry and Behavioral Sciences, University of Texas Health Sciences Center, Houston, TX, USA; Houston Methodist Behavioral Health, Houston Methodist Academic Institute, Houston, TX, USA; Department of Psychiatry and Behavioral Sciences, University of California, San Francisco, San Francisco, CA, USA
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6
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Outeiro TF, Kalia LV, Bezard E, Ferrario J, Lin CH, Salama M, Standaert DG, Taiwo L, Takahashi R, Vila M, Mollenhauer B, Svenningsson P. Basic Science in Movement Disorders: Fueling the Engine of Translation into Clinical Practice. Mov Disord 2024. [PMID: 38576081 DOI: 10.1002/mds.29802] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 03/11/2024] [Accepted: 03/15/2024] [Indexed: 04/06/2024] Open
Abstract
Basic Science is crucial for the advancement of clinical care for Movement Disorders. Here, we provide brief updates on how basic science is important for understanding disease mechanisms, disease prevention, disease diagnosis, development of novel therapies and to establish the basis for personalized medicine. We conclude the viewpoint by a call to action to further improve interactions between clinician and basic scientists. © 2024 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Tiago F Outeiro
- Department of Experimental Neurodegeneration, Center for Biostructural Imaging of Neurodegeneration, University Medical Center Göttingen, Göttingen, Germany
- Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
- Scientific employee with an honorary contract at Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Göttingen, Germany
| | - Lorraine V Kalia
- Krembil Research Institute, Toronto Western Hospital, University Health Network, Toronto, Canada
- Division of Neurology, Department of Medicine, University of Toronto, Toronto, Canada
- Tanz Centre for Research in Neurodegenerative Diseases, University of Toronto, Toronto, Canada
| | - Erwan Bezard
- Université de Bordeaux, Institut des Maladies Neurodégénératives, Bordeaux, France
- Centre National de la Recherche Scientifique Unité Mixte de Recherche 5293, Institut des Maladies Neurodégénératives, Bordeaux, France
| | - Juan Ferrario
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Instituto de Biociencias, Biotecnología y Biología traslacional (iB3) and CONICET, Buenos Aires, Argentina
| | - Chin-Hsien Lin
- Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
- Institute of Molecular Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
- Department of Biomedical Engineering, National Taiwan University, Taipei, Taiwan
| | - Mohamed Salama
- Institute of Global Health and Human Ecology, The American University in Cairo, Cairo, Egypt
- Faculty of Medicine, Mansoura University, Dakahleya, Egypt
| | - David G Standaert
- Department of Neurology, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Lolade Taiwo
- Department of Neurology, University College Hospital, Ibadan, Nigeria
| | - Ryosuke Takahashi
- Department of Neurology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Miquel Vila
- Neurodegenerative Diseases Research Group, Vall d'Hebron Research Institute (VHIR), Network Center for Biomedical Research in Neurodegenerative Diseases (CIBERNED), Autonomous University of Barcelona (UAB), Barcelona, Spain
- Catalan Institution for Research and Advanced Studies (ICREA), Barcelona, Spain
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, Maryland, USA
| | - Brit Mollenhauer
- Scientific employee with an honorary contract at Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Göttingen, Germany
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, Maryland, USA
- Paracelsus-Elena-Klinik, Kassel, Germany; University Medical Center Goettingen, Institute of Neurology, Goettingen, Germany
| | - Per Svenningsson
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, Maryland, USA
- Department of Clinical Neuroscience and Neurology, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
- Department of Basic and Clinical Neuroscience, King's College London, London, UK
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Shebl N, El-Jaafary S, Saeed AA, Elkafrawy P, El-Sayed A, Shamma S, Elnemr R, Mekky J, Mohamed LA, Kittaneh O, El-Fawal H, Rizig M, Salama M. Metabolomic profiling reveals altered phenylalanine metabolism in Parkinson's disease in an Egyptian cohort. Front Mol Biosci 2024; 11:1341950. [PMID: 38516193 PMCID: PMC10955577 DOI: 10.3389/fmolb.2024.1341950] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 01/18/2024] [Indexed: 03/23/2024] Open
Abstract
Introduction: Parkinson's disease (PD) is the most common motor neurodegenerative disease worldwide. Given the complexity of PD etiology and the different metabolic derangements correlated to the disease, metabolomics profiling of patients is a helpful tool to identify patho-mechanistic pathways for the disease development. Dopamine metabolism has been the target of several previous studies, of which some have reported lower phenylalanine and tyrosine levels in PD patients compared to controls. Methods: In this study, we have collected plasma from 27 PD patients, 18 reference controls, and 8 high-risk controls to perform a metabolomic study using liquid chromatography-electrospray ionization-tandem mass spectrometry (LC-ESI-MS/MS). Results: Our findings revealed higher intensities of trans-cinnamate, a phenylalanine metabolite, in patients compared to reference controls. Thus, we hypothesize that phenylalanine metabolism has been shifted to produce trans-cinnamate via L-phenylalanine ammonia lyase (PAL), instead of producing tyrosine, a dopamine precursor, via phenylalanine hydroxylase (PAH). Discussion: Given that these metabolites are precursors to several other metabolic pathways, the intensities of many metabolites such as dopamine, norepinephrine, and 3-hydroxyanthranilic acid, which connects phenylalanine metabolism to that of tryptophan, have been altered. Consequently, and in respect to Metabolic Control Analysis (MCA) theory, the levels of tryptophan metabolites have also been altered. Some of these metabolites are tryptamine, melatonin, and nicotinamide. Thus, we assume that these alterations could contribute to the dopaminergic, adrenergic, and serotonergic neurodegeneration that happen in the disease.
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Affiliation(s)
- Nourhan Shebl
- Institute of Global Health and Human Ecology (I-GHHE), The American University in Cairo, Cairo, Egypt
| | - Shaimaa El-Jaafary
- Neurology Department, Faculty of Medicine, Cairo University, Giza, Egypt
- Global Brain Health Institute (GBHI), Trinity College Dublin, Dublin, Ireland
| | - Ayman A Saeed
- Applied Organic Chemistry Department, Chemical Industries Research Institute, National Research Centre (NRC), Giza, Egypt
| | - Passent Elkafrawy
- Technology and Energy Research Center, Effat University-College of Engineering-NSMTU, Jeddah, Saudi Arabia
| | - Amr El-Sayed
- Social Research Center, The American University in Cairo, Cairo, Egypt
| | - Samir Shamma
- Institute of Global Health and Human Ecology (I-GHHE), The American University in Cairo, Cairo, Egypt
| | - Rasha Elnemr
- Climate Change Information Center & Expert Systems (CCICES), Agriculture Research Center, Giza, Egypt
| | - Jaidaa Mekky
- Neurology Department, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Lobna A Mohamed
- Neurology Department, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Omar Kittaneh
- Technology and Energy Research Center, Effat University-College of Engineering-NSMTU, Jeddah, Saudi Arabia
| | - Hassan El-Fawal
- Institute of Global Health and Human Ecology (I-GHHE), The American University in Cairo, Cairo, Egypt
| | - Mie Rizig
- Queen Square, Institute of Neurology, University College London, London, United Kingdom
| | - Mohamed Salama
- Institute of Global Health and Human Ecology (I-GHHE), The American University in Cairo, Cairo, Egypt
- Global Brain Health Institute (GBHI), Trinity College Dublin, Dublin, Ireland
- Faculty of Medicine, Mansoura University, Mansoura, Egypt
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8
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Moustafa SA, Deif R, Gaballah N, Salama M. Cognitive Impairment and Non-Communicable Diseases in Egypt's Aging Population: Insights and Implications from the 2021-2022 Pilot of "A Longitudinal Study of Egyptian Healthy Aging" "AL-SEHA". Int J Environ Res Public Health 2024; 21:151. [PMID: 38397642 PMCID: PMC10888087 DOI: 10.3390/ijerph21020151] [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] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 12/12/2023] [Accepted: 12/29/2023] [Indexed: 02/25/2024]
Abstract
As the global population ages, the prevalence of cognitive impairment among older individuals has been steadily rising. Like many countries, Egypt is grappling with the challenges an aging demographic poses. The global network of longitudinal aging studies, modeled after the US Health and Retirement Study (HRS), includes over 40 countries but lacks representation from the Arab/North African region. The proposed 'A Longitudinal Study of Egyptian Healthy Aging' (AL-SEHA) will address this gap by providing data on aging in Egypt, the largest Arab/North African country, shedding light on the intricate relationship between cognitive impairment and non-communicable diseases (NCDs) in Egypt's aging population between 2021 and 2022. This study took place in five governments in Egypt and recruited 299 participants from a population of 50+. The results of the study are from the pilot stage of the original longitudinal study (AL-SEHA).
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Affiliation(s)
- Sara A. Moustafa
- Institute of Global Health and Human Ecology, The American University, New Cairo 11835, Egypt; (R.D.); (M.S.)
| | - Reem Deif
- Institute of Global Health and Human Ecology, The American University, New Cairo 11835, Egypt; (R.D.); (M.S.)
| | - Nada Gaballah
- Computer Science and Engineering Department, The American University, New Cairo 11835, Egypt;
| | - Mohamed Salama
- Institute of Global Health and Human Ecology, The American University, New Cairo 11835, Egypt; (R.D.); (M.S.)
- Toxicology Department, Faculty of Medicine, Mansoura University, Dakahlia 35516, Egypt
- Atlantic Senior Fellow of Equity in Brain Health at the Global Brain Health Institute (GBHI), Trinity College Dublin, D02 PN40 Dublin, Ireland
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9
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Hegazi MN, El-Jaafary S, Shebl N, El-Fawal H, Rizig M, Salama M. Remote Sensing Data as a Tool for Studying Environmental Aspects of Parkinson's Disease. J Parkinsons Dis 2024; 14:619-622. [PMID: 38393921 DOI: 10.3233/jpd-230382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/25/2024]
Affiliation(s)
- Mohamed N Hegazi
- Spatial Data Infrastructure, National Authority for Remote Sensing and Space Sciences, Cairo, Egypt
| | - Shaimaa El-Jaafary
- Department of Neurology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Nourhan Shebl
- Institute of Global Health and Human Ecology, the American University in Cairo, Cairo, Egypt
| | - Hassan El-Fawal
- Institute of Global Health and Human Ecology, the American University in Cairo, Cairo, Egypt
| | - Mie Rizig
- Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK
| | - Mohamed Salama
- Institute of Global Health and Human Ecology, the American University in Cairo, Cairo, Egypt
- Department of Toxicology, Faculty of Medicine, Mansoura University, Dakahleya, Egypt
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Elmorsy E, Al-Ghafari A, Al Doghaither H, Hashish S, Salama M, Mudyanselage AW, James L, Carter WG. Differential Effects of Paraquat, Rotenone, and MPTP on Cellular Bioenergetics of Undifferentiated and Differentiated Human Neuroblastoma Cells. Brain Sci 2023; 13:1717. [PMID: 38137165 PMCID: PMC10741680 DOI: 10.3390/brainsci13121717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 12/07/2023] [Accepted: 12/12/2023] [Indexed: 12/24/2023] Open
Abstract
Paraquat (PQ), rotenone (RO), and 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) are neurotoxicants that can damage human health. Exposure to these neurotoxicants has been linked to neurodegeneration, particularly Parkinson's disease. However, their mechanisms of action have not been fully elucidated, nor has the relative vulnerability of neuronal subtypes to their exposures. To address this, the current study investigated the cytotoxic effects of PQ, RO, and MPTP and their relative effects on cellular bioenergetics and oxidative stress on undifferentiated human neuroblastoma (SH-SY5Y) cells and those differentiated to dopaminergic (DA) or cholinergic (CH) phenotypes. The tested neurotoxicants were all cytotoxic to the three cell phenotypes that correlated with both concentration and exposure duration. At half-maximal effective concentrations (EC50s), there were significant reductions in cellular ATP levels and reduced activity of the mitochondrial complexes I and III, with a parallel increase in lactate production. PQ at 10 µM significantly decreased ATP production and mitochondrial complex III activity only in DA cells. RO was the most potent inhibitor of mitochondrial complex 1 and did not inhibit mitochondrial complex III even at concentrations that induced a 50% loss of cell viability. MPTP was the most potent toxicant in undifferentiated cells. All neurotoxicants significantly increased reactive oxygen species, lipid peroxidation, and nuclear expression of Nrf2, with a corresponding inhibition of the antioxidant enzymes catalase and superoxide dismutase. At a 10 µM exposure to PQ or RO, oxidative stress biomarkers were significant in DA cells. Collectively, this study underscores the importance of mitochondrial dysfunction and oxidative stress in PQ, RO, and MPTP-induced cytotoxicity and that neuronal phenotypes display differential vulnerability to these neurotoxicants.
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Affiliation(s)
- Ekramy Elmorsy
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt
- Pathology Department, Faculty of Medicine, Northern Border University, Arar 91431, Saudi Arabia
| | - Ayat Al-Ghafari
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (A.A.-G.); (H.A.D.)
- Experimental Biochemistry Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Huda Al Doghaither
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (A.A.-G.); (H.A.D.)
| | - Sara Hashish
- Institute of Global Health and Human Ecology, The American University in Cairo (AUC), Cairo 11385, Egypt; (S.H.); (M.S.)
| | - Mohamed Salama
- Institute of Global Health and Human Ecology, The American University in Cairo (AUC), Cairo 11385, Egypt; (S.H.); (M.S.)
| | - Anusha W. Mudyanselage
- Clinical Toxicology Research Group, School of Medicine, University of Nottingham, Royal Derby Hospital Centre, Derby DE22 3DT, UK; (A.W.M.); (L.J.)
- Faculty of Agricultural Sciences, Sabaragamuwa University of Sri Lanka, Belihuloya 70140, Sri Lanka
| | - Lipta James
- Clinical Toxicology Research Group, School of Medicine, University of Nottingham, Royal Derby Hospital Centre, Derby DE22 3DT, UK; (A.W.M.); (L.J.)
| | - Wayne G. Carter
- Clinical Toxicology Research Group, School of Medicine, University of Nottingham, Royal Derby Hospital Centre, Derby DE22 3DT, UK; (A.W.M.); (L.J.)
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Ali A, Salama M, Parkinson J. Improving weekdays to weekends handover at base-site hospitals at Northumbria Healthcare NHS Foundation Trust: a quality improvement project. Future Healthc J 2023; 10:128. [PMID: 38406678 PMCID: PMC10884633 DOI: 10.7861/fhj.10-3-s128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Affiliation(s)
- Ahmed Ali
- Northumbria Specialists Emergency Care Hospital, Northumbria, UK
- *lead author
| | - Mohamed Salama
- Northumbria Specialists Emergency Care Hospital, Northumbria, UK
| | - James Parkinson
- Northumbria Specialists Emergency Care Hospital, Northumbria, UK
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Tavabie OD, Abbott J, Abeysekera KWM, Balachandrakumar VK, Bennett K, Brennan P, Buchanan R, Dhaliwal A, Galanakis V, Hardy T, Harris R, Kronsten VT, Leighton J, Li W, Yin JL, Macken L, Marjot T, Maurice JB, McDowell H, Navaratnam J, Pohl K, Nayagam JS, Saunsbury E, Scott J, Sheth A, Sinharay R, Sheiybani G, Subhani M, Tavabie OD, Turner L, White H, Zakeri N, Balachandrakumar VK, Cook C, Hardy T, Harris R, Navaratnam J, Saunsbury E, Tavabie OD, Abbas N, Abbasi A, Abdul R, Abdulaziz M, Abduljabbar D, Abeysekera KWM, Adamson R, Adebayo D, Adhikarla AK, Adler M, Ahmad S, Ahmed S, Afifi M, Akram A, Al Radhi B, Al-Talib I, Alele J, Ali AM, Almusai S, Appleby V, Asmat H, Astbury S, Atkinson A, Badrulhisham F, Balachandrakumar VK, Ball A, Banfa M, Barn J, Begum S, Belfield K, Bendall O, Bhandari R, Bhatti P, Bradley M, Brennan P, Brown E, Bryce K, Burke L, Campbell R, Cargill T, Carroll G, Cartledge J, Chatterjee D, Chaundry R, Choudhry Z, Clare K, Cobbold J, Coburn R, Corvan F, Cox R, Craig D, Creamer J, Curran C, De Silva S, Dean L, Dillon J, Dunn R, Eckersley R, Eike G, Elagib A, Elkholi A, Elshaarawy O, Faloon S, Fan F, Fazili M, Fernandes D, Fox J, Foxton M, Gaba W, Gaikwad G, Gairola A, Galanakis V, Gallaher C, Gautam N, Germain L, Giles B, Gill C, Glover B, Glover J, Gomez D, Gomez M, Gordon V, Gormley S, Goulder J, Goyal S, Greenham O, Guthrie S, Hackett R, Haddadin Y, Hadjinicolaou A, Hall J, Haque T, Hardy T, Harris R, Hart C, Hasnain Nadir SM, Hassall J, Hasan S, Hawker-Bond G, Hawkyard J, Healey S, Hornby C, Hamza M, Humayun M, Hutchison J, Iftikhar Z, Ismail A, James J, Jopson L, Juthani D, Kaina P, Karim A, Karim SM, Kashyap V, Kassab M, Katarey D, Kenny L, Kerry G, Khan A, Khan A, Khan A, Khan MT, Khan T, Khatib A, Khattak MF, King JJ, Korani M, Kotha S, Kooner E, Lam WL, Lateef M, Leith D, Li W, Liaros A, Lourenco F, Lyles A, Mahenthiran M, Magee C, Maggs D, Mahalingam A, Mahmood R, Mandour MO, Manocha N, Mansour D, Marks D, Marjot T, Martin C, Martin H, Martin I, Martin K, Maruthan S, Masin R, Mason D, Matthews C, Mavrou A, Maxan E, Maxfield D, McAvoy E, McColl K, McCaughan H, McCorry R, McGoran J, McDonald S, McDowell H, McIlwane S, Meakin O, Mebarek L, Merrill H, Michail S, Modarres P, Mohamedali A, Mohammed Y, Mohammed Z, Mohan J, Monnier C, Moran E, Morrison G, Moroni F, Msaddi A, Mutar S, Navaratnam J, Neto-Pereira L, Nahed I, Ng J, Nwoguh C, O’Kane R, Omar S, Ososanya A, Parambil JV, Patel J, Pericleous M, Pervais Z, Phoolchund A, Pietrzycki J, Pillay L, Prabhu K, Putri YRF, Qazi U, Rafique KK, Raman K, Ranade V, Rastelli F, Ratcliffe E, Rattehalli D, Raza T, Razak A, Raghuraman A, Read G, Robins A, Rushbrook S, Salama M, St. Aimee L, Saravan R, Sarkar S, Saunsbury E, Serna S, Shahzad H, Shamsaldeen M, Sharip M, Shearer J, Sheikh A, Sheiybani G, Sheth A, Sherwin M, Shintre N, Singhal S, Sinha R, Sinharay R, Smith G, Smith R, Spicer J, Spoor J, Sreenivasan S, Srinivasa A, Srivastava A, Stagg G, Stanley J, Stevenson J, Stokes D, Stroud R, Subhani M, Suliman H, Sultana M, Summers N, Sutherland C, Swann R, Sykes L, Taha M, Tan KE, Tariq Z, Ming Tay JJ, Taylor A, Thakor A, Tsang J, Tyler Z, Unitt E, Volcek E, Wischhusen J, Watson I, Watters C, Wells G, Widlak M, Williams M, Woodland H, Wren L, Xyda S, Yeh J, Young A, Jie Yuan JS, Abbott J, Abeysekera KWM, Galanakis V, Li W, Sheth A, Sinharay R, Sheiybani G, Tavabie OD, Abbott J, Abeysekera KWM, Galanakis V, Li W, Sheth A, Sinharay R, Sheiybani G, Tavabie OD, Abeysekera KWM, Brennan P, Li W, Marjot T, Tavabie OD, Aithal G, Bernal W, Dillon J, Hogan B, McPherson S, Jones R, Rowe I, Snowdon V. Defining characteristics and outcomes for patients with non-alcoholic fatty liver disease admitted to hospital with decompensated cirrhosis. J Hepatol 2023; 79:e165-e167. [PMID: 37315808 DOI: 10.1016/j.jhep.2023.05.035] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 05/14/2023] [Indexed: 06/16/2023]
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Moustafa SA, Boersch-Supan A, Salama M. Aging in an Arab country: knowledge gaps in Egypt. Nat Aging 2023; 3:1042-1044. [PMID: 37605087 DOI: 10.1038/s43587-023-00484-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Affiliation(s)
- Sara A Moustafa
- Institute of Global Health and Human Ecology, The American University in Cairo, Cairo, Egypt
| | - Axel Boersch-Supan
- Munich Research Institute for the Economics of Aging and SHARE Analyses (MEA), Munich, Germany
- Survey of Health, Ageing and Retirement in Europe (SHARE), Munich, Germany
- Max Planck Institute for Social Law and Social Policy (MPISOC), Munich, Germany
| | - Mohamed Salama
- Institute of Global Health and Human Ecology, The American University in Cairo, Cairo, Egypt.
- Faculty of Medicine, Mansoura University, Dakahleya, Egypt.
- Global Brain Health Institute (GBHI), Trinity College Dublin (TCD), Dublin, Ireland.
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Sedik AA, Salama M, Fathy K, Salama A. Cold plasma approach fortifies the topical application of thymoquinone intended for wound healing via up-regulating the levels of TGF-ß, VEGF, and α-SMA in rats. Int Immunopharmacol 2023; 122:110634. [PMID: 37451012 DOI: 10.1016/j.intimp.2023.110634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/25/2023] [Accepted: 07/08/2023] [Indexed: 07/18/2023]
Abstract
Wound healing is a series of coordinated events that involve tissue repair and regeneration. Cold atmospheric plasma approach sheds the light on the mechanism that initiates the inflammatory responses throughout the healing cascade. The present study was planned to assess the effect of thymoquinone treated with cold plasma (TQcp) on the rat wound model compared to thymoquinone (TQ). To assess the wound healing potential of TQcp, a full-thickness wound model was used. The induced wound was smeared, starting just after excision, twice daily with TQcp and TQ for 7 days. Our findings revealed that TQcp improved the skin healing potential by augmenting the skin regeneration indices as evidenced by enhancing the new production of hyaluronic acid and collagen type I. TQcp significantly reduced the skin content of tumor necrosis factor- α and inhibited the hypertrophic scarring by up-regulating the skin content of transforming growth factor-beta. Furthermore, TQcp enhanced the levels of interleukin-10, alpha smooth muscle actin and vascular endothelial growth factor, demonstrating a great potential for wound healing that also reflected in the histopathological and ultra-structural picture of the skin. Finally, our results demonstrated that TQcp revealed a significant potential for wound healing than TQ alone.
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Affiliation(s)
- Ahmed A Sedik
- Pharmacology Department, Medical Research and Clinical Studies Institute, National Research Centre, 12622, Egypt.
| | - Mohamed Salama
- Dairy Department, Food Industries and Nutrition Research Institute, National Research Centre, 12622, Egypt
| | - Khaled Fathy
- Electron Microscopy Unit, Mansoura University, El Mansoura, 35516, Egypt
| | - Abeer Salama
- Pharmacology Department, Medical Research and Clinical Studies Institute, National Research Centre, 12622, Egypt
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15
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Farid N, Chun S, Hassanain O, Salama M, Esam E, Adel F, Rashad I, El Ghoneimy AM. Cross-cultural adaptation and validation of a self-reporting tool to assess health-related quality of life for Egyptians with extremity bone sarcomas in childhood or adolescence. Health Qual Life Outcomes 2023; 21:81. [PMID: 37516838 PMCID: PMC10386605 DOI: 10.1186/s12955-023-02165-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 07/18/2023] [Indexed: 07/31/2023] Open
Abstract
BACKGROUND Validated self-reporting tools are required to evaluate the functional outcome and health-related quality of life (HRQOL) for those who had extremity bone sarcomas in their childhood or adolescence. Our study pursued cross-cultural adaptation and validation of the pediatric Toronto Extremity Salvage Score (pTESS) and Toronto Extremity Salvage Score (TESS) to assess the functional outcome for Egyptian children and adult survivors following surgeries of extremity bone sarcomas. In the modified versions of pTESS and TESS, mental domains were added to allow the evaluation of HRQOL using a specific instrument for childhood bone cancer. METHODS The internal consistency and test-retest reliability of the studied forms were assessed with Cronbach's alpha and Intra-class coefficients (ICC), respectively. For convergent validity, correlations between scores of the generic Pediatric Quality of Life Inventory (PedsQL 4.0) and pTESS /TESS scores were reported. Factor Analysis was feasible for pTESS-leg; due to the insufficient samples, only the average inter-item correlation coefficients were reported for the remaining versions. RESULTS Out of 233 participants, 134 responded to pTESS-leg, 53 to TESS-leg, 36 to pTESS-arm, and only 10 to TESS-arm. All versions showed excellent internal consistency (Cronbach's alpha >0.9), good test-retest reliability (ICC >0.8), moderate to strong correlations with PedsQL, and acceptable average inter-item correlation coefficients (≥0.3). Three factors were extracted for the pTESS-leg, in which all mental items were loaded on one separate factor with factor loadings exceeding 0.4. Active chemotherapy, less than one year from primary surgery, or tibial tumors were associated with significantly inferior pTESS/TESS scores in the lower extremity group. CONCLUSION The Egyptian pTESS and TESS are valid and reliable self-reporting tools for assessing the functional outcome following surgeries for extremity bone sarcomas. The modified pTESS and TESS versions, which include additional mental domains, enabled the assessment of the overall health status of our population. Future studies should include a larger sample size and evaluate the ability of pTESS/TESS to track progress over time.
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Affiliation(s)
- Nesma Farid
- Institute of Global Health and Human Ecology, American University in Cairo and Clinical Research Department, Children's Cancer Hospital Egypt (CCHE-57357), Cairo, Egypt.
| | - Sungsoo Chun
- Institute of Global Health and Human Ecology, American University in Cairo, Cairo, Egypt
| | - Omneya Hassanain
- Clinical Research Department, Children's Cancer Hospital Egypt (CCHE-57357), Cairo, Egypt
| | - Mohamed Salama
- Institute of Global Health and Human Ecology, American University in Cairo, Cairo, Egypt
| | - Elham Esam
- Nursing department, Children's Cancer Hospital Egypt (CCHE-57357), Cairo, Egypt
| | - Fatima Adel
- Clinical Research Department, Children's Cancer Hospital Egypt (CCHE-57357), Cairo, Egypt
| | - Ismail Rashad
- Department of Orthopedic Oncology, Cairo University and Children's Cancer Hospital Egypt (CCHE-57357), Cairo, Egypt
| | - Ahmed Mohamed El Ghoneimy
- Department of Orthopedic Oncology, Cairo University and Children's Cancer Hospital Egypt (CCHE-57357), Cairo, Egypt
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Müller-Nedebock AC, Dekker MCJ, Farrer MJ, Hattori N, Lim SY, Mellick GD, Rektorová I, Salama M, Schuh AFS, Stoessl AJ, Sue CM, Tan AH, Vidal RL, Klein C, Bardien S. Different pieces of the same puzzle: a multifaceted perspective on the complex biological basis of Parkinson's disease. NPJ Parkinsons Dis 2023; 9:110. [PMID: 37443150 DOI: 10.1038/s41531-023-00535-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 05/22/2023] [Indexed: 07/15/2023] Open
Abstract
The biological basis of the neurodegenerative movement disorder, Parkinson's disease (PD), is still unclear despite it being 'discovered' over 200 years ago in Western Medicine. Based on current PD knowledge, there are widely varying theories as to its pathobiology. The aim of this article was to explore some of these different theories by summarizing the viewpoints of laboratory and clinician scientists in the PD field, on the biological basis of the disease. To achieve this aim, we posed this question to thirteen "PD experts" from six continents (for global representation) and collated their personal opinions into this article. The views were varied, ranging from toxin exposure as a PD trigger, to LRRK2 as a potential root cause, to toxic alpha-synuclein being the most important etiological contributor. Notably, there was also growing recognition that the definition of PD as a single disease should be reconsidered, perhaps each with its own unique pathobiology and treatment regimen.
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Affiliation(s)
- Amica C Müller-Nedebock
- Division of Molecular Biology and Human Genetics, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
- South African Medical Research Council/Stellenbosch University Genomics of Brain Disorders Research Unit, Stellenbosch University, Cape Town, South Africa
| | - Marieke C J Dekker
- Department of Internal Medicine, Kilimanjaro Christian Medical Centre, Moshi, Tanzania
| | - Matthew J Farrer
- Norman Fixel Institute for Neurological Diseases, McKnight Brain Institute, University of Florida, Gainesville, FL, USA
| | - Nobutaka Hattori
- Research Institute of Disease of Old Age, Graduate School of Medicine, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
- Department of Neurology, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
- Neurodegenerative Disorders Collaborative Laboratory, RIKEN Center for Brain Science, 2-1 Hirosawa, Wako, Saitama, 351-0106, Japan
| | - Shen-Yang Lim
- Division of Neurology, Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
- The Mah Pooi Soo & Tan Chin Nam Centre for Parkinson's & Related Disorders, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - George D Mellick
- Griffith Institute of Drug Discovery (GRIDD), Griffith University, Brisbane, QLD, Australia
| | - Irena Rektorová
- First Department of Neurology and International Clinical Research Center, St. Anne's University Hospital and Faculty of Medicine, Masaryk University, Brno, Czech Republic
- Applied Neuroscience Research Group, CEITEC, Masaryk University, Brno, Czech Republic
| | - Mohamed Salama
- Institute of Global Health and Human Ecology (I-GHHE), The American University in Cairo (AUC), New Cairo, 11835, Egypt
- Faculty of Medicine, Mansoura University, Dakahleya, Egypt
- Atlantic Senior Fellow for Equity in Brain Health at the Global Brain Health Institute (GBHI), Trinity College Dublin (TCD), Dublin, Ireland
| | - Artur F S Schuh
- Departamento de Farmacologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Serviço de Neurologia, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - A Jon Stoessl
- Pacific Parkinson's Research Centre, Department of Medicine (Division of Neurology), Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, BC, Canada
| | - Carolyn M Sue
- Neuroscience Research Australia; Faculty of Medicine, University of New South Wales; Kinghorn Centre for Clinical Genomics, Garvan Institute of Medical Research, Darlinghurst; Department of Neurology, Prince of Wales Hospital, South Eastern Sydney Local Health District, Randwick, NSW, Australia
| | - Ai Huey Tan
- Division of Neurology, Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
- The Mah Pooi Soo & Tan Chin Nam Centre for Parkinson's & Related Disorders, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Rene L Vidal
- Instituto de Neurociencia Biomédica (BNI), Facultad de Medicina, Universidad de Chile, Santiago, Chile
- Centro FONDAP de Gerociencia, Salud Mental y Metabolismo (GERO), Santiago, Chile
- Centro de Biología Integrativa, Facultad de Ciencias, Universidad Mayor, Santiago, Chile
| | - Christine Klein
- Institute of Neurogenetics, University of Lübeck and University Hospital Schleswig-Holstein, Lübeck, Germany.
| | - Soraya Bardien
- Division of Molecular Biology and Human Genetics, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa.
- South African Medical Research Council/Stellenbosch University Genomics of Brain Disorders Research Unit, Stellenbosch University, Cape Town, South Africa.
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Salama M, Mohammed DM, Fahmy K, Al-Senosy NK, Ebeed NM, Farouk A. Evaluation of the cytotoxicity and genotoxicity potential of synthetic diacetyl food flavoring in silico, in vivo, and in vitro. Food Chem Toxicol 2023:113923. [PMID: 37399938 DOI: 10.1016/j.fct.2023.113923] [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: 04/20/2023] [Revised: 06/24/2023] [Accepted: 06/28/2023] [Indexed: 07/05/2023]
Abstract
Diacetyl is a common ingredient that creates a buttery flavor in baked goods and other food products. The cytotoxic impact of diacetyl on a normal human liver cell line (THLE2) indicated an IC50 value of 41.29 mg/ml through MTT assay and a cell cycle arrest in the G0/G1 phase relative to the control. Administration of diacetyl at two-time points (acute-chronic) led to a significant increase in DNA damage indicated by the increase in tail length, tail DNA%, and tail moment. The mRNA and protein expression levels of genes in the rats' livers were then measured using real-time PCR and western blotting. The results showed an activation of the apoptotic and necrosis mechanism, with an upregulation of p53, Caspase 3, and RIP1 and a downregulation of Bcl-2 at the mRNA level. The ingestion of diacetyl disrupted the liver's oxidant/antioxidant balance, as evidenced by alterations in levels of GSH, SOD, CAT, GPx, GR, MDA, NO, and peroxynitrite. Additionally, heightened levels of inflammatory cytokines were shown. Histopathological examinations revealed necrotic foci and congested portal areas in the rats' liver cells after treatment with diacetyl. Diacetyl may interact moderately with Caspase, RIP1, and p53 core domain through In-silico, possibly resulting in upregulated gene expression.
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Affiliation(s)
- Mohamed Salama
- Preventive Medicine Dept, Health Affairs Directorate, Ministry of Health, Ataba, 11511, Cairo, Egypt
| | - Dina Mostafa Mohammed
- Nutrition and Food Sciences Department, National Research Centre, Cairo, 12622, Egypt
| | - Khaled Fahmy
- Genetics Department, Faculty of Agriculture, Ain Shams University, Hadayek Shoubra, 11241, Cairo, Egypt
| | - Neima K Al-Senosy
- Genetics Department, Faculty of Agriculture, Ain Shams University, Hadayek Shoubra, 11241, Cairo, Egypt
| | - Naglaa M Ebeed
- Genetics Department, Faculty of Agriculture, Ain Shams University, Hadayek Shoubra, 11241, Cairo, Egypt
| | - Amr Farouk
- Flavour and Aroma Chemistry Department, National Research Centre, Cairo, 12622, Egypt.
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Tavabie OD, Abeysekera KWM, Brennan PN, Marjot T, Kronsten VT, Li W, Nayagam JS, Dhaliwal A, Hardy T, Maurice JB, Zakeri N, Abbas N, Abbasi A, Abbott J, Abdul R, Abdulaziz M, Abduljabbar D, Adamson R, Adebayo D, Adhikarla AK, Adler M, Afifi M, Ahmad S, Ahmed S, Aithal G, Akram A, Al Radhi B, Al-Talib I, Alele J, Ali AM, Almusai S, Appleby V, Asmat H, Astbury S, Atkinson A, Badrulhisham F, Balachandrakumar VK, Ball A, Banfa M, Barn J, Begum S, Belfield K, Bendall O, Bennett K, Bernal W, Bhandari R, Bhatti P, Bradley M, Brown E, Bryce K, Buchanan R, Burke L, Campbell R, Cargill T, Carroll G, Cartledge J, Chatterjee D, Chaundry R, Choudhry Z, Clare K, Cobbold J, Coburn R, Cook C, Corvan F, Cox R, Craig D, Creamer J, Curran C, De Silva S, Dean L, Dillon J, Dillon J, Dunn R, Eckersley R, Eike G, Elagib A, Elkholi A, Elshaarawy O, Faloon S, Fan F, Fazili M, Fernandes D, Fox J, Foxton M, Gaba W, Gaikwad G, Gairola A, Galanakis V, Gallaher C, Gautam N, Germain L, Giles B, Gill C, Glover B, Glover J, Gomez D, Gomez M, Gordon V, Gormley S, Goulder J, Goyal S, Greenham O, Guthrie S, Hackett R, Haddadin Y, Hadjinicolaou A, Hall J, Hamza M, Haque T, Harris R, Hart C, Hasan S, Hasnain Nadir SM, Hassall J, Hawker-Bond G, Hawkyard J, Healey S, Hogan B, Hornby C, Humayun MD, Hutchison J, Iftikhar Z, Ismail A, James J, Jones R, Jopson L, Juthani D, Kaina P, Karim A, Karim SM, Kashyap V, Kassab M, Katarey D, Kenny L, Kerry G, Khan A, Khan A, Khan A, Khan MT, Khan T, Khatib A, Khattak MF, King JJ, Kooner E, Korani M, Kotha S, Lam WL, Lateef M, Leighton J, Leith D, Liaros A, Liu Yin J, Lourenco F, Lyles A, Macken L, Magee C, Maggs D, Mahalingam A, Mahenthiran M, Mahmood R, Mandour MO, Manocha N, Mansour D, Marks D, Martin C, Martin H, Martin I, Martin K, Maruthan S, Masin R, Mason D, Matthews C, Mavrou A, Maxan E, Maxfield D, McAvoy E, McCaughan H, McColl K, McCorry R, McDonald S, McDowell H, McGoran J, McIlwane S, McPherson S, Meakin O, Mebarek L, Merrill H, Michail S, Modarres P, Mohamedali A, Mohammed Y, Mohammed Z, Mohan J, Monnier C, Moran E, Moroni F, Morrison G, Msaddi A, Mutar S, Nahed I, Navaratnam J, Neto-Pereira L, Ng J, Nwoguh C, O'Kane R, Omar S, Ososanya A, Parambil JV, Patel J, Pericleous M, Pervais Z, Phoolchund A, Pietrzycki J, Pillay L, Pohl K, Prabhu K, Putri YRF, Qazi U, Rafique KK, Raghuraman A, Raman K, Ranade V, Rastelli F, Ratcliffe E, Rattehalli D, Raza T, Razak A, Read G, Robins A, Rowe I, Rushbrook S, Salama M, Saravan R, Sarkar S, Saunsbury E, Scott J, Serna S, Shahzad H, Shamsaldeen M, Sharip M, Shearer J, Sheikh A, Sheiybani G, Sherwin M, Sheth A, Shintre N, Singhal S, Sinha R, Sinharay R, Smith G, Smith R, Snowdon V, Spicer J, Spoor J, Sreenivasan S, Srinivasa A, Srivastava A, St. Aimee L, Stagg G, Stanley J, Stevenson J, Stokes D, Stroud R, Subhani M, Suliman H, Sultana M, Summers N, Sutherland C, Swann R, Sykes L, Taha M, Tan KE, Tariq Z, Tay JJM, Taylor A, Thakor A, Tsang J, Turner L, Tyler Z, Unitt E, Volcek E, Watson I, Watters C, Wells G, White H, Widlak M, Williams M, Wischhusen J, Woodland H, Wren L, Xyda S, Yeh J, Young A, Yuan JSJ. Regional variation in characteristics of patients with decompensated cirrhosis admitted to hospitals in the UK. Lancet Gastroenterol Hepatol 2023; 8:604-606. [PMID: 37148900 DOI: 10.1016/s2468-1253(23)00114-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 04/17/2023] [Indexed: 05/08/2023]
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Abdelraheem O, Sami DG, Salama M. Online Health Communities: an alternative feasible data registry tool for developing countries. Health Res Policy Syst 2023; 21:28. [PMID: 37024909 PMCID: PMC10077652 DOI: 10.1186/s12961-023-00976-w] [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: 12/27/2022] [Accepted: 03/20/2023] [Indexed: 04/08/2023] Open
Abstract
Given the many challenges facing healthcare access in many developing countries and the added limitations observed in emergencies like COVID-19 pandemic, the authors here discuss an alternative and feasible approach to overcome all these limitations.
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Affiliation(s)
- Omnia Abdelraheem
- Institute of Global Health, and Human Ecology (I-GHHE), The American University in Cairo, Cairo, Egypt
| | - Diana G Sami
- Institute of Global Health, and Human Ecology (I-GHHE), The American University in Cairo, Cairo, Egypt
| | - Mohamed Salama
- Institute of Global Health, and Human Ecology (I-GHHE), The American University in Cairo, Cairo, Egypt.
- Faculty of Medicine, Mansoura University, Mansoura, Egypt.
- Global Brain Health Institute (GBHI), Trinity College Dublin, Dublin, Ireland.
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Salama M, Nahata L, Jayasinghe Y, Gomez-Lobo V, Laronda MM, Moravek MB, Meacham LR, Christianson MS, Lambertini M, Anazodo A, Quinn GP, Woodruff TK. Pediatric oncofertility care in limited versus optimum resource settings: results from 39 surveyed centers in Repro-Can-OPEN Study Part I & II. J Assist Reprod Genet 2023; 40:443-454. [PMID: 36542312 PMCID: PMC9768400 DOI: 10.1007/s10815-022-02679-7] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 12/02/2022] [Indexed: 12/24/2022] Open
Abstract
PURPOSE As a secondary report to elucidate the diverse spectrum of oncofertility practices for childhood cancer around the globe, we present and discuss the comparisons of oncofertility practices for childhood cancer in limited versus optimum resource settings based on data collected in the Repro-Can-OPEN Study Part I & II. METHODS We surveyed 39 oncofertility centers including 14 in limited resource settings from Africa, Asia, and Latin America (Repro-Can-OPEN Study Part I), and 25 in optimum resource settings from the USA, Europe, Australia, and Japan (Repro-Can-OPEN Study Part II). Survey questions covered the availability of fertility preservation and restoration options offered in case of childhood cancer as well as their degree of utilization. RESULTS In the Repro-Can-OPEN Study Part I & II, responses for childhood cancer and calculated oncofertility scores showed the following characteristics: (1) higher oncofertility scores in optimum resource settings than in limited resource settings for ovarian and testicular tissue cryopreservation; (2) frequent utilization of gonadal shielding, fractionation of anticancer therapy, oophoropexy, and GnRH analogs; (3) promising utilization of oocyte in vitro maturation (IVM); and (4) rare utilization of neoadjuvant cytoprotective pharmacotherapy, artificial ovary, in vitro spermatogenesis, and stem cells reproductive technology as they are still in preclinical or early clinical research settings. CONCLUSIONS Based on Repro-Can-OPEN Study Part I & II, we presented a plausible oncofertility best practice model to help optimize care for children with cancer in various resource settings. Special ethical concerns should be considered when offering advanced and innovative oncofertility options to children.
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Affiliation(s)
- M Salama
- grid.17088.360000 0001 2150 1785Oncofertility Consortium, Michigan State University, 965 Wilson Road, Room A626B, East Lansing, MI 48824-1316 USA
| | - L. Nahata
- grid.240344.50000 0004 0392 3476Endocrinology and Center for Biobehavioral Health, The Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH 43205 USA
- grid.261331.40000 0001 2285 7943Department of Pediatrics, The Ohio State University College of Medicine, Columbus, OH 43205 USA
| | - Y. Jayasinghe
- grid.416107.50000 0004 0614 0346Royal Children’s Hospital, Flemington Rd, Parkville, Melbourne, Vic 3054 Australia
| | - V. Gomez-Lobo
- grid.239560.b0000 0004 0482 1586Children’s National Hospital, 111 Michigan Avenue NW, Washington, DC 20010 USA
- grid.420089.70000 0000 9635 8082Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda MD, Annapolis, 20892 USA
| | - MM. Laronda
- grid.413808.60000 0004 0388 2248Ann & Robert H. Lurie Children’s Hospital of Chicago, 225 East Chicago Ave, Box 63, Chicago, IL 60611 USA
| | - MB. Moravek
- grid.412590.b0000 0000 9081 2336Center for Reproductive Medicine, Michigan Medicine, 475 Market Place, Building 1, Suite B, Ann Arbor, MI 48108 USA
| | - LR. Meacham
- grid.428158.20000 0004 0371 6071Aflac Cancer Center Children’s Healthcare of Atlanta, Atlanta, GA USA
- grid.189967.80000 0001 0941 6502Department of Pediatrics, Emory University, 2015 Uppergate Dr, Atlanta, GA 30322 USA
| | - MS. Christianson
- grid.21107.350000 0001 2171 9311Johns Hopkins Fertility Center, Division of Reproductive Endocrinology and Infertility, Johns Hopkins University School of Medicine, 10751 Falls Road, Suite 280, Lutherville, MD 21093 USA
| | - M. Lambertini
- grid.410345.70000 0004 1756 7871Department of Medical Oncology, UOC Clinica Di Oncologia Medica, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- grid.5606.50000 0001 2151 3065Department of Internal Medicine and Medical Specialties (DiMI), School of Medicine, University of Genova, Genoa, Italy
| | - A. Anazodo
- grid.414009.80000 0001 1282 788XKids Cancer Centre, Sydney Children’s Hospital, High Street Randwick, Sydney, Randwick 2031 Australia
| | - GP. Quinn
- grid.137628.90000 0004 1936 8753New York University, NYU Langone Fertility Center, 660 First Ave, 5Th Floor, New York, NY 10016 USA
| | - TK. Woodruff
- grid.17088.360000 0001 2150 1785Oncofertility Consortium, Michigan State University, 965 Wilson Road, Room A626B, East Lansing, MI 48824-1316 USA
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Tawfik SM, Elhosseiny AA, Galal AA, William MB, Qansuwa E, Elbaz RM, Salama M. Health inequity in genomic personalized medicine in underrepresented populations: a look at the current evidence. Funct Integr Genomics 2023; 23:54. [PMID: 36719510 DOI: 10.1007/s10142-023-00979-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 01/24/2023] [Accepted: 01/24/2023] [Indexed: 02/01/2023]
Abstract
Improvements in sequencing technology coupled with dramatic declines in the cost of genome sequencing have led to a proportional growth in the size and number of genetic datasets since the release of the human genetic sequence by The Human Genome Project (HGP) international consortium. The HGP was undeniably a significant scientific success, a turning point in human genetics and the beginning of human genomics. This burst of genetic information has led to a greater understanding of disease pathology and the potential of employing this data to deliver more precise patient care. Hence, the recognition of high-penetrance disease-causing mutations which encode drivers of disease has made the management of most diseases more specific. Nonetheless, while genetic scores are becoming more extensively used, their application in the real world is expected to be limited due to the lack of diversity in the data used to construct them. Underrepresented populations, such as racial and ethnic minorities, low-income individuals, and those living in rural areas, often experience greater health disparities and worse health outcomes compared to the general population. These disparities are often the result of systemic barriers, such as poverty, discrimination, and limited access to healthcare. Addressing health inequity in underrepresented populations requires addressing the underlying social determinants of health and implementing policies and programs which promoted health equity and reduce disparities. This can include expanding access to affordable healthcare, addressing poverty and unemployment, and promoting policies that combat discrimination and racism.
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Affiliation(s)
- Sherouk M Tawfik
- Institute of Global Health and Human Ecology, School of Sciences and Engineering, The American University in Cairo, Cairo, 11835, Egypt.,Department of Pharmacology and Biochemistry, Faculty of Pharmacy, The British University in Egypt (BUE), Cairo, 11837, Egypt
| | - Aliaa A Elhosseiny
- Institute of Global Health and Human Ecology, School of Sciences and Engineering, The American University in Cairo, Cairo, 11835, Egypt.,Department of Pharmacology and Biochemistry, Faculty of Pharmacy, The British University in Egypt (BUE), Cairo, 11837, Egypt
| | - Aya A Galal
- Institute of Global Health and Human Ecology, School of Sciences and Engineering, The American University in Cairo, Cairo, 11835, Egypt.,Systems Genomics Laboratory, The American University in Cairo, New Cairo, Egypt
| | - Martina B William
- Institute of Global Health and Human Ecology, School of Sciences and Engineering, The American University in Cairo, Cairo, 11835, Egypt.,Department of Clinical Pharmacy, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | - Esraa Qansuwa
- Institute of Global Health and Human Ecology, School of Sciences and Engineering, The American University in Cairo, Cairo, 11835, Egypt
| | - Rana M Elbaz
- Institute of Global Health and Human Ecology, School of Sciences and Engineering, The American University in Cairo, Cairo, 11835, Egypt
| | - Mohamed Salama
- Institute of Global Health and Human Ecology, School of Sciences and Engineering, The American University in Cairo, Cairo, 11835, Egypt. .,Faculty of Medicine, Mansoura University, Mansoura, Egypt. .,Global Brain Health Institute, Trinity College Dublin, Dublin, Ireland.
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El Sayed AEHI, Said MT, Mohsen O, Abozied AM, Salama M. Falls and associated risk factors in a sample of old age population in Egyptian community. Front Public Health 2023; 11:1068314. [PMID: 36778572 PMCID: PMC9909230 DOI: 10.3389/fpubh.2023.1068314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 01/11/2023] [Indexed: 01/27/2023] Open
Abstract
Introduction Falling is a major health problem among old age persons and are the sixth cause of mortality and morbidity among them. Assessing the prevalence of falls among elderly in an Egyptian community and investigating its associated risk factors using the Arabic translation of the SHARE-Questionnaire. Subjects and methods This cross-sectional analytic study was a part of the pilot for AL-SEHA project. It included 289 old age people (50+ years age) residing in the study areas. The main project data were collected using the Arabic translation of the SHARE (Survey of Health, Aging, and Retirement in Europe) questionnaire. The original project data were collected by investigators from five universities, then uploaded to the internet server domain of the American University in Cairo (AUC) Social Research Center. Results The prevalence of falls was 11.07% (95% CI: 7.95-15.21). Falls were significantly more among 70 years or older (p < 0.001), unemployed or housewives (p = 0.026), have a family caregiver (p = 0.022), and home facilities for disability (p = 0.015). They had significantly higher rates of ischemic heart disease, hypertension, dyslipidemia, stroke, and diabetes mellitus. The most frequently reported problems were the fear of fall and dizziness (62.5%). The multivariate analysis identified the history of stroke and diabetes mellitus, the fear of fall and dizziness, and the total number of health problems and the score of difficulty in performing physical activities as significant independent predictors of fall occurrence. The history of stroke was the strongest risk factor (OR 33.49, CI: 3.45-325.40). Discussion and recommendations The prevalence of falls among old age persons in the studied community is not alarmingly high. It is highest among stroke patients. Community interventions and rehabilitation programs are recommended to train and educate old age people, especially those at risk such as stroke and diabetic patients, and those with dizziness to improve their physical fitness and reduce the fear of fall among them.
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Affiliation(s)
- Abd El Hamied Ibrahim El Sayed
- Department of Occupational Therapy, National Institute of Longevity Elderly Sciences NILES, Beni-Suef University, Beni Suef, Egypt
| | - Mohamed T. Said
- Physical Therapy for Elderly, National Institute for Longevity Elderly Sciences, Beni-Suef University, Beni Suef, Egypt
| | - Omnia Mohsen
- Medical Anthropology, National Institute of Longevity Elderly Sciences NILES, Beni-Suef University, Beni Suef, Egypt
| | - Aziza M. Abozied
- Community Health Nursing, Beni-Suef University, Beni Suef, Egypt
| | - Mohamed Salama
- Institute of Global Health and Human Ecology (IGHHE), The American University in Cairo, Cairo, Egypt,Faculty of Medicine, Mansoura University, Dakahleya, Egypt,Atlantic Senior Fellow for Equity in Brain Health at the Global Brain Health Institute (GBHI), Trinity College Dublin (TCD), Dublin, Ireland,*Correspondence: Mohamed Salama ✉ ; ✉
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Heikal SA, Salama M, Barsoum G. Investigating the feasibility of creating a disease registry in Egypt: a case study of dementia. Alzheimers Dement 2022. [DOI: 10.1002/alz.069171] [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: 12/24/2022]
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Saleh H, Salama M, Hussein RM. Polyethylene glycol capped gold nanoparticles ameliorate renal ischemia-reperfusion injury in diabetic mice through AMPK-Nrf2 signaling pathway. Environ Sci Pollut Res Int 2022; 29:77884-77907. [PMID: 35688972 PMCID: PMC9581836 DOI: 10.1007/s11356-022-21235-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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] [Received: 03/18/2022] [Accepted: 05/29/2022] [Indexed: 05/09/2023]
Abstract
The aim of this study is to investigate the protective effect of polyethylene glycol capped gold nanoparticles (PEG-AuNPs) on renal ischemia-reperfusion injury (I/R)-induced acute kidney injury (AKI) in diabetic mice via the activation of adenosine 5' monophosphate-activated protein kinase-nuclear factor erythroid-2-related factor-2 (AMPK-Nrf2) pathway. Diabetes was induced in male mice (12/group) by streptozotocin (50 mg/kg) for 5 consecutive days. After 4 weeks, the mice have intravenously received doses of PEG-AuNPs (40, 150, and 400 µg/kg body weight) for 3 consecutive days, and then animals were subjected to 30 min ischemia and 48 h reperfusion. Following the treatment with three different doses of PEG-AuNPs, the levels of blood urea nitrogen (BUN) and creatinine were reduced. Obvious reduction in renal tubular atrophy, glomerular damage, mitochondrial damage, and necrotic area were ultra-structurally detected, and renal interstitial inflammation and apoptosis were diminished. Moreover, PEG-AuNPs increased the recovering of damaged renal cells, suppressed significantly levels of malondialdehyde (MDA), downregulated significantly the level of inflammatory cytokines (TNF-α and IL-1β), and upregulated the AMPK-Nrf2 pathway. PEG-AuNPs exhibited a promising alternative therapeutic target for diabetic renal I/R-induced AKI through upregulation of AMPK/PI3K/AKT path which additionally stimulated Nrf2-regulated antioxidant enzymes in a dose-dependent manner.
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Affiliation(s)
- Hanan Saleh
- Department of Zoology, Faculty of Science, Cairo University, P.O. Box 12613, Giza, Egypt
| | - Mohamed Salama
- Textile Research and and Technology Institute, National Research Centre, El Buhouth street Dokki, P.O. Box 12622, Giza, Egypt
| | - Rehab Mohamed Hussein
- Department of Zoology, Faculty of Science, Cairo University, P.O. Box 12613, Giza, Egypt
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Salama M, Abdo A, Mousa A, Shaheen A, Elsayed A, Soliman A. Morus Alba Leaf Extract-Based Biogenic Production of Silver Nanoparticles: Characterization, Antibacterial, and Antiviral Evaluation. Egypt J Chem 2022. [DOI: 10.21608/ejchem.2022.153506.6682] [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: 11/06/2022]
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Elghzaly AA, Sun C, Looger LL, Hirose M, Salama M, Khalil NM, Behiry ME, Hegazy MT, Hussein MA, Salem MN, Eltoraby E, Tawhid Z, Alwasefy M, Allam W, El-Shiekh I, Elserafy M, Abdelnaser A, Hashish S, Shebl N, Shahba AA, Elgirby A, Hassab A, Refay K, El-Touchy HM, Youssef A, Shabacy F, Hashim AA, Abdelzaher A, Alshebini E, Fayez D, El-Bakry SA, Elzohri MH, Abdelsalam EN, El-Khamisy SF, Ibrahim S, Ragab G, Nath SK. Genome-wide association study for systemic lupus erythematosus in an egyptian population. Front Genet 2022; 13:948505. [PMID: 36324510 PMCID: PMC9619055 DOI: 10.3389/fgene.2022.948505] [Citation(s) in RCA: 4] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 09/30/2022] [Indexed: 04/11/2024] Open
Abstract
Systemic lupus erythematosus (SLE) susceptibility has a strong genetic component. Genome-wide association studies (GWAS) across trans-ancestral populations show both common and distinct genetic variants of susceptibility across European and Asian ancestries, while many other ethnic populations remain underexplored. We conducted the first SLE GWAS on Egyptians-an admixed North African/Middle Eastern population-using 537 patients and 883 controls. To identify novel susceptibility loci and replicate previously known loci, we performed imputation-based association analysis with 6,382,276 SNPs while accounting for individual admixture. We validated the association analysis using adaptive permutation tests (n = 109). We identified a novel genome-wide significant locus near IRS1/miR-5702 (Pcorrected = 1.98 × 10-8) and eight novel suggestive loci (Pcorrected < 1.0 × 10-5). We also replicated (Pperm < 0.01) 97 previously known loci with at least one associated nearby SNP, with ITGAM, DEF6-PPARD and IRF5 the top three replicated loci. SNPs correlated (r 2 > 0.8) with lead SNPs from four suggestive loci (ARMC9, DIAPH3, IFLDT1, and ENTPD3) were associated with differential gene expression (3.5 × 10-95 < p < 1.0 × 10-2) across diverse tissues. These loci are involved in cellular proliferation and invasion-pathways prominent in lupus and nephritis. Our study highlights the utility of GWAS in an admixed Egyptian population for delineating new genetic associations and for understanding SLE pathogenesis.
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Affiliation(s)
- Ashraf A. Elghzaly
- Department of Clinical Pathology, Faculty of Medicine, Mansoura University, El-Mansoura, Egypt
| | - Celi Sun
- Arthritis and Clinical Immunology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, United States
| | - Loren L. Looger
- Department of Neurosciences, Howard Hughes Medical Institute, University of California, San Diego, San Diego, CA, United States
| | - Misa Hirose
- Division of Genetics, Lübeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany
| | - Mohamed Salama
- Institute of Global Health and Human Ecology, The American University in Cairo, New Cairo, Egypt
| | - Noha M. Khalil
- Rheumatology and Clinical Immunology Unit, Department of Internal Medicine, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Mervat Essam Behiry
- Rheumatology and Clinical Immunology Unit, Department of Internal Medicine, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Mohamed Tharwat Hegazy
- Rheumatology and Clinical Immunology Unit, Department of Internal Medicine, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Mohamed Ahmed Hussein
- Rheumatology and Clinical Immunology Unit, Department of Internal Medicine, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Mohamad Nabil Salem
- Department of Internal Medicine, Faculty of Medicine, Beni-Suef University, Beni Suef, Egypt
| | - Ehab Eltoraby
- Department of Internal Medicine, Faculty of Medicine, Mansoura University, El-Mansoura, Egypt
| | - Ziyad Tawhid
- Department of Clinical Pathology, Faculty of Medicine, Mansoura University, El-Mansoura, Egypt
| | - Mona Alwasefy
- Department of Clinical Pathology, Faculty of Medicine, Mansoura University, El-Mansoura, Egypt
| | - Walaa Allam
- Center for Genomics, Helmy Institute for Medical Sciences, Zewail City of Science and Technology, Giza, Egypt
| | - Iman El-Shiekh
- Center for Genomics, Helmy Institute for Medical Sciences, Zewail City of Science and Technology, Giza, Egypt
| | - Menattallah Elserafy
- Center for Genomics, Helmy Institute for Medical Sciences, Zewail City of Science and Technology, Giza, Egypt
| | - Anwar Abdelnaser
- Institute of Global Health and Human Ecology, The American University in Cairo, New Cairo, Egypt
| | - Sara Hashish
- Institute of Global Health and Human Ecology, The American University in Cairo, New Cairo, Egypt
| | - Nourhan Shebl
- Institute of Global Health and Human Ecology, The American University in Cairo, New Cairo, Egypt
| | | | - Amira Elgirby
- Department of Internal Medicine, Faculty of Medicine, Alexandria University, Bab Sharqi, Egypt
| | - Amina Hassab
- Department of Clinical Pathology, Faculty of Medicine, Alexandria University, Bab Sharqi, Egypt
| | - Khalida Refay
- Department of Internal Medicine, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | | | - Ali Youssef
- Department of Rheumatology and Immunology, Faculty of Medicine, Benha University Hospital, Benha, Egypt
| | - Fatma Shabacy
- Department of Rheumatology and Immunology, Faculty of Medicine, Benha University Hospital, Benha, Egypt
| | | | - Asmaa Abdelzaher
- Department of Clinical Pathology, Faculty of Medicine, South Valley University, Qena, Egypt
| | - Emad Alshebini
- Department of Internal Medicine, Faculty of Medicine, Menoufia University, Al Minufiyah, Egypt
| | - Dalia Fayez
- Rheumatology and Clinical Immunology Unit, Department of Internal Medicine, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Samah A. El-Bakry
- Rheumatology and Clinical Immunology Unit, Department of Internal Medicine, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Mona H. Elzohri
- Department of Internal Medicine, Faculty of Medicine, Assiut University, Asyut, Egypt
| | | | - Sherif F. El-Khamisy
- Center for Genomics, Helmy Institute for Medical Sciences, Zewail City of Science and Technology, Giza, Egypt
- The Healthy Lifespan Institute, University of Sheffield, Sheffield, United Kingdom
- The Institute of Cancer Therapeutics, University of Bradford, Bradford, United Kingdom
| | - Saleh Ibrahim
- Division of Genetics, Lübeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany
| | - Gaafar Ragab
- Rheumatology and Clinical Immunology Unit, Department of Internal Medicine, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Swapan K. Nath
- Arthritis and Clinical Immunology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, United States
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Nabhan A, Salama M, Elsayed M, Nawara M, Kamel M, Abuelnaga Y, Ghonim M, Elshafeey F, Abdelhadi R, Gebril S, Mahdy S, Sarhan D, Mburu G, Kiarie J. Indicators of infertility and fertility care: a systematic scoping review. Hum Reprod Open 2022; 2022:hoac047. [PMID: 36339250 PMCID: PMC9632452 DOI: 10.1093/hropen/hoac047] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 10/06/2022] [Indexed: 12/26/2022] Open
Abstract
STUDY QUESTION What is the scope of literature regarding infertility and fertility care indicators in terms of types and dimensions of these indicators? SUMMARY ANSWER Most available infertility and fertility care indicators are outcomes indicators of effectiveness and efficiency dimensions. WHAT IS KNOWN ALREADY The use of appropriate, relevant and valid indicators of infertility and fertility care is critical for monitoring access, equity and utilization. STUDY DESIGN SIZE DURATION A systematic scoping review was conducted. We searched MEDLINE, Pubmed, JSTOR, CINAHL, Web of Science and Scopus electronic databases from inception to May 2022 without imposing language or date restrictions. We searched gray literature and online libraries of relevant organizations. We hand-searched the list of relevant references. PARTICIPANTS/MATERIALS SETTING METHODS This scoping systematic review followed the framework of Arksey and O'Malley and the Joanna Briggs Institute guidelines. Records identified by the search were independently screened and data were extracted. We performed conceptual synthesis by grouping the reported indicators by typology and dimensions. Structured tabulation and graphical synthesis were used along with narrative commentary. MAIN RESULTS AND THE ROLE OF CHANCE We included 46 reports from 88 countries. The reporting of infertility and fertility care indicators was voluntary in 63 countries (72%) and compulsory in 25 countries (28%). Reporting for cycles or deliveries was based on individual cycles in 56 countries (64%) and on cumulative cycles in 32 countries (36%). Most indicators were utilized as outcome indicators with fewer being process indicators or structural indicators. For the dimension of indicators, most indicators were utilized as effectiveness and efficiency indicators with fewer utilized as indicators of safety, patient-centeredness, equity and timeliness. LIMITATIONS REASONS FOR CAUTION Most indicators fall into the domain of assisted reproductive technology and are reported by fertility clinics. Indicators of safety, patient-centeredness, equity and timeliness as well as non-clinical indicators are almost invisible. WIDER IMPLICATIONS OF THE FINDINGS A wide range of indicators of infertility and fertility care exist in literature. Most indicators were effectiveness and efficiency indicators, while indicators of safety, patient-centeredness, equity and timeliness remain almost invisible. The scope of the current indicators indicates a predominant focus on clinical metrics, with substantial invisibility of non-clinical indicators and indicators outside the ART domain. These gaps need to be considered in further work of identifying a core set of indicators. STUDY FUNDING/COMPETING INTERESTS This work received funding from the UNDP-UNFPA-UNICEF-WHO-World Bank Special Programme of Research, Development and Research Training in Human Reproduction (HRP), a cosponsored program executed by the World Health Organization (WHO). The authors had no competing interests. TRIAL REGISTRATION NUMBER Open Science Framework vsu42.
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Affiliation(s)
- Ashraf Nabhan
- Correspondence address. Department of Obstetrics and Gynecology, Faculty of Medicine, Ain Shams University, El-Khalifa El-Maamoun Street, Cairo 11341, Egypt. E-mail:
| | - Mohamed Salama
- Department of Obstetrics and Gynecology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Mortada Elsayed
- Department of Obstetrics and Gynecology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Maii Nawara
- Department of Obstetrics and Gynecology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Menna Kamel
- Egyptian Center for Evidence Based Medicine, Cairo, Egypt
| | | | - Mohanad Ghonim
- Egyptian Center for Evidence Based Medicine, Cairo, Egypt
| | | | - Rana Abdelhadi
- Egyptian Center for Evidence Based Medicine, Cairo, Egypt
| | - Sara Gebril
- Egyptian Center for Evidence Based Medicine, Cairo, Egypt
| | - Shahd Mahdy
- Egyptian Center for Evidence Based Medicine, Cairo, Egypt
| | - Dana Sarhan
- Egyptian Center for Evidence Based Medicine, Cairo, Egypt
| | | | - James Kiarie
- The UNDP/UNFPA/UNICEF/WHO/World Bank Special Programme of Research, Development and Research Training in Human Reproduction (HRP Research), Geneva, Switzerland
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Salama M, Barakat D, Ibrahim ED. Effectiveness and Persistence of Some Synthetic Insecticides and their Nanoformulation Against Whitefly (Bemisia tabaci) and Aphids (Aphis craccivora) on Fennel Plants and Soil. Egypt J Chem 2022. [DOI: 10.21608/ejchem.2022.155631.6717] [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: 10/14/2022]
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El shalakany W, Abd-Elkader A, Salama M, Oraby S. Mitigation negative effects of salt stress on common bean (Phaseolus vulgaris) using seaweed extracts. Egypt J Chem 2022. [DOI: 10.21608/ejchem.2022.143061.6254] [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: 10/14/2022]
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Zaki MO, El-Desouky S, Elsherbiny DA, Salama M, Azab SS. Glimepiride mitigates tauopathy and neuroinflammation in P301S transgenic mice: role of AKT/GSK3β signaling. Inflammopharmacology 2022; 30:1871-1890. [PMID: 35922737 PMCID: PMC9499917 DOI: 10.1007/s10787-022-01023-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 06/20/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND OBJECTIVE Tauopathy is a group of neurodegenerative diseases in which the pathogenesis processes are related to tau protein. The imbalances between the activities of kinases and phosphatases of tau protein lead to tau hyperphosphorylation and subsequent neurodegeneration. Numerous studies suggest a strong linkage between type 2 diabetes mellitus (T2D) and neurodegenerative diseases. Therefore, finding a drug with a dual therapeutic activity against T2D and neuroprotective will be a promising idea. Hence, the potential neuroprotective effect of Glimepiride (GPD) against tauopathy was evaluated in the current study. METHODS P301S mice model was employed for tauopathy and C57BL/6 wild type mice (WT) was used as control. Phosphorylated and acetylated tau protein levels was assessed in cortex and hippocampus by western blot. Effect of GPD on tauopathy related enzymes, neuroinflammation, apoptotic markers were evaluated. Furthermore, the neuroprotective effects against anxiety like behavior and motor impairment was analyzed using Parallel rod floor and Open field tests. RESULTS GPD significantly ameliorates motor impairment, anxiety like behavior and neurodegeneration in P301S mice. Phosphorylated tau and acetylated tau were significantly decreased in both cortex and hippocampus of P301S mice via decreasing GSK3β, increasing ratio of phosphorylated-AKT to total-AKT, increasing PP2A and normalization of CDK5 levels. Furthermore, GPD treatment also decreased neuroinflammation and apoptosis by reducing NF-kB, TNF-α and caspase 3 levels. CONCLUSION The current data suggests that GPD exerts a protective effect against tauopathy, behavioural consequences, neurodegeneration, neuroinflammation and apoptosis. GPD is therefore a promising agent for the treatment of neurodegenerative diseases associated with tauopathy.
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Affiliation(s)
- Mennatallah O Zaki
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Horus University, New Damietta, Egypt
| | - S El-Desouky
- Medical Experimental Research Center (MERC), Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Doaa A Elsherbiny
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo, 11566, Egypt
| | - Mohamed Salama
- Medical Experimental Research Center (MERC), Faculty of Medicine, Mansoura University, Mansoura, Egypt.,Institute of Global Health and Human Ecology, The American University in Cairo, Cairo, Egypt
| | - Samar S Azab
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo, 11566, Egypt.
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Elmorsy E, Al-Ghafari A, Al Doghaither H, Salama M, Carter WG. An Investigation of the Neurotoxic Effects of Malathion, Chlorpyrifos, and Paraquat to Different Brain Regions. Brain Sci 2022; 12:brainsci12080975. [PMID: 35892416 PMCID: PMC9394375 DOI: 10.3390/brainsci12080975] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 06/16/2022] [Revised: 07/16/2022] [Accepted: 07/21/2022] [Indexed: 02/04/2023] Open
Abstract
Acute or chronic exposures to pesticides have been linked to neurotoxicity and the potential development of neurodegenerative diseases (NDDs). This study aimed to consider the neurotoxicity of three widely utilized pesticides: malathion, chlorpyrifos, and paraquat within the hippocampus (HC), corpus striatum (CS), cerebellum (CER), and cerebral cortex (CC). Neurotoxicity was evaluated at relatively low, medium, and high pesticide dosages. All pesticides inhibited acetylcholinesterase (AChE) and neuropathy target esterase (NTE) in each of the brain regions, but esterase inhibition was greatest in the HC and CS. Each of the pesticides also induced greater disruption to cellular bioenergetics within the HC and CS, and this was monitored via inhibition of mitochondrial complex enzymes I and II, reduced ATP levels, and increased lactate production. Similarly, the HC and CS were more vulnerable to redox stress, with greater inhibition of the antioxidant enzymes catalase and superoxide dismutase and increased lipid peroxidation. All pesticides induced the production of nuclear Nrf2 in a dose-dependent manner. Collectively, these results show that pesticides disrupt cellular bioenergetics and that the HC and CS are more susceptible to pesticide effects than the CER and CC.
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Affiliation(s)
- Ekramy Elmorsy
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt; (E.E.); (M.S.)
- Pathology Department, Faculty of Medicine, Northern Border University, Arar 91431, Saudi Arabia
- School of Medicine, University of Nottingham, Royal Derby Hospital Centre, Derby DE22 3DT, UK
| | - Ayat Al-Ghafari
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (A.A.-G.); (H.A.D.)
- Scientific Research Center, Dar Al-Hekma University, Jeddah 22246, Saudi Arabia
| | - Huda Al Doghaither
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (A.A.-G.); (H.A.D.)
- Cancer and Mutagenesis Unit, King Fahd Medical Research Centre, King Abdulaziz University, Jeddah 22252, Saudi Arabia
| | - Mohamed Salama
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt; (E.E.); (M.S.)
- Institute of Global Health and Human Ecology, The American University in Cairo (AUC), Cairo 11385, Egypt
| | - Wayne G. Carter
- School of Medicine, University of Nottingham, Royal Derby Hospital Centre, Derby DE22 3DT, UK
- Correspondence: ; Tel.: +44-132-724-738
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Schumacher-Schuh AF, Bieger A, Okunoye O, Mok KY, Lim SY, Bardien S, Ahmad-Annuar A, Santos-Lobato BL, Strelow MZ, Salama M, Rao SC, Zewde YZ, Dindayal S, Azar J, Prashanth LK, Rajan R, Noyce AJ, Okubadejo N, Rizig M, Lesage S, Mata IF. Underrepresented Populations in Parkinson's Genetics Research: Current Landscape and Future Directions. Mov Disord 2022; 37:1593-1604. [PMID: 35867623 PMCID: PMC10360137 DOI: 10.1002/mds.29126] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 04/18/2022] [Accepted: 05/30/2022] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND Human genetics research lacks diversity; over 80% of genome-wide association studies have been conducted on individuals of European ancestry. In addition to limiting insights regarding disease mechanisms, disproportionate representation can create disparities preventing equitable implementation of personalized medicine. OBJECTIVE This systematic review provides an overview of research involving Parkinson's disease (PD) genetics in underrepresented populations (URP) and sets a baseline to measure the future impact of current efforts in those populations. METHODS We searched PubMed and EMBASE until October 2021 using search strings for "PD," "genetics," the main "URP," and and the countries in Latin America, Caribbean, Africa, Asia, and Oceania (excluding Australia and New Zealand). Inclusion criteria were original studies, written in English, reporting genetic results on PD from non-European populations. Two levels of independent reviewers identified and extracted information. RESULTS We observed imbalances in PD genetic studies among URPs. Asian participants from Greater China were described in the majority of the articles published (57%), but other populations were less well studied; for example, Blacks were represented in just 4.0% of the publications. Also, although idiopathic PD was more studied than monogenic forms of the disease, most studies analyzed a limited number of genetic variants. We identified just nine studies using a genome-wide approach published up to 2021, including URPs. CONCLUSION This review provides insight into the significant lack of population diversity in PD research highlighting the immediate need for better representation. The Global Parkinson's Genetics Program (GP2) and similar initiatives aim to impact research in URPs, and the early metrics presented here can be used to measure progress in the field of PD genetics in the future. © 2022 International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Artur Francisco Schumacher-Schuh
- Departamento de Farmacologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Serviço de Neurologia, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Andrei Bieger
- Graduate Program in Biological Sciences: Biochemistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Olaitan Okunoye
- Department of Clinical and Movement Neurosciences, Queen Square Institute of Neurology, University College London, United Kingdom
| | - Kin Ying Mok
- Department of Neurodegenerative Disease and UK Dementia Research Institute, University College of London, London, United Kingdom.,Division of Life Sciences, Hong Kong University of Science and Technology, Hong Kong, China
| | - Shen-Yang Lim
- Division of Neurology, Department of Medicine, and the Mah Pooi Soo & Tan Chin Nam Centre for Parkinson's & Related Disorders, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Soraya Bardien
- Division of Molecular Biology and Human Genetics, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Azlina Ahmad-Annuar
- Department of Biomedical Science, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | | | - Matheus Zschornack Strelow
- Graduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Mohamed Salama
- Institute of Global Health and Human Ecology, The American University in Cairo, Cairo, Egypt
| | - Shilpa C Rao
- Genomic Medicine Institute, Lerner Research Institute, Genomic Medicine, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Yared Zenebe Zewde
- Department of Neurology, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Saiesha Dindayal
- Division of Neurology, Department of Neurosciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Jihan Azar
- Institute of Global Health and Human Ecology, The American University in Cairo, Cairo, Egypt
| | | | - Roopa Rajan
- Department of Neurology, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Alastair J Noyce
- Preventive Neurology Unit, Centre for Prevention, Detection and Diagnosis, Wolfson Institute of Population Health, Queen Mary University of London, London, United Kingdom
| | - Njideka Okubadejo
- Department of Medicine, College of Medicine, University of Lagos, Lagos State, Nigeria
| | - Mie Rizig
- Institute of Neurology, University College of London, London, United Kingdom
| | - Suzanne Lesage
- Sorbonne Université, Institut du Cerveau-Paris Brain Institute-ICM, INSERM, CNRS, Assistance Publique Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, CIC Neurosciences, Paris, France
| | - Ignacio Fernandez Mata
- Genomic Medicine Institute, Lerner Research Institute, Genomic Medicine, Cleveland Clinic Foundation, Cleveland, Ohio, USA
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Darici E, Salama M, Bokor A, Oral E, Dauser B, Hudelist G. Different segmental resection techniques and postoperative complications in patients with colorectal endometriosis: A systematic review. Acta Obstet Gynecol Scand 2022; 101:705-718. [PMID: 35661342 DOI: 10.1111/aogs.14379] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 03/13/2022] [Accepted: 04/01/2022] [Indexed: 12/01/2022]
Abstract
INTRODUCTION The aim of this study was to analyze the available literature by conducting a systematic review to assess the possible effects of nerve-sparing segmental resection and conventional bowel resection on postoperative complications for the treatment of colorectal endometriosis. MATERIAL AND METHODS Pubmed, Clinical Trials.gov, Cochrane Library, and Web of Science were comprehensively searched from 1997 to 2021 in order to perform a systematic review. Studies including patients undergoing segmental resection for colorectal endometriosis including adequate follow-up, data on postoperative complications and postoperative sequelae were enrolled in this review. Selected articles were evaluated and divided in two groups: Nerve-sparing resection (NSR), and conventional segmental resection not otherwise specified (SRNOS). Within the NSRs, studies mentioning preservation of the rectal artery supply (artery and nerve-sparing SR - ANSR) and not reporting preservation of the artery supply (NSR not otherwise specified - NSRNOS) were further analyzed. PROSPERO ID CRD42021250974. RESULTS A total of 7549 patients from 63 studies were included in the data analysis. Forty-three of these publications did not mention the preservation or the removal of the hypogastric nerve plexus, or main rectal artery supply and were summarized as SRNOS. The remaining 22 studies were listed under the NSR group. The mean size of the resected deep endometriosis lesions and patients' body mass index were comparable between SRNOS and NSR. A mean of 3.6% (0-16.6) and 2.3% (0-10.5%) of rectovaginal fistula development was reported in patients who underwent SRNOS and NSR, respectively. Anastomotic leakage rates varied from 0% to 8.6% (mean 1.7 ± 2%) in SRNOS compared with 0% to 8% (mean 1.7 ± 2%) in patients undergoing NSR. Urinary retention (4.5% and 4.9%) and long-term bladder catheterization (4.9% and 5.6%) were frequently reported in SRNOS and NSR. There was insufficient information about pain or the recurrence rates for women undergoing SRNOS and NSR. CONCLUSIONS Current data describe the outcomes of different segmental resection techniques. However, the data are inhomogeneous and not sufficient to reach a conclusion regarding a possible advantage of one technique over the other.
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Affiliation(s)
- Ezgi Darici
- Department of Obstetrics and Gynecology, University of Health Sciences Turkey, Zeynep Kâmil Women and Children's Diseases Training and Research Hospital, Istanbul, Turkey.,European Endometriosis League, Bordeaux, France
| | - Mohamed Salama
- Department of Thoracic Surgery, Nord Hospital, Vienna, Austria
| | - Attila Bokor
- European Endometriosis League, Bordeaux, France.,Department of Obstetrics and Gynecology, Semmelweis University, Budapest, Hungary
| | - Engin Oral
- European Endometriosis League, Bordeaux, France.,Department of Obstetrics and Gynecology, Bezmialem Vakif University, Istanbul, Turkey
| | - Bernhard Dauser
- Department of General Surgery, Center for Endometriosis, Hospital St. John of God, Vienna, Austria
| | - Gernot Hudelist
- European Endometriosis League, Bordeaux, France.,Center for Endometriosis, Department of Gynecology, Hospital St. John of God, Vienna, Austria
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Kassem J, Abbas H, Salama M, Abd Elhamid L. MILK BIOACTIVE LIPIDS AS POTENTIAL HEALTHY FRACTIONS: A REVIEW. Egypt J Chem 2022. [DOI: 10.21608/ejchem.2022.135048.5943] [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: 10/18/2022]
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Gomaa S, Barakat E, Salama M, Elgohary E. Antibacterial Effect of Emerging Queen Honeybee Induced by The Bacterium Paenibacillus Larvae Subsp. Against Multidrug-Resistant Bacteria. Egyptian Academic Journal of Biological Sciences A, Entomology 2022. [DOI: 10.21608/eajbsa.2022.225819] [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: 10/18/2022] Open
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Li X, Tang C, Salama M, Xia M, Huang X, Sheng L, Cai Z. Encapsulation efficiency and oral delivery stability of chitosan–liposome‐encapsulated immunoglobulin Y. J Food Sci 2022; 87:1708-1720. [DOI: 10.1111/1750-3841.16116] [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] [Received: 12/03/2021] [Revised: 02/17/2022] [Accepted: 02/18/2022] [Indexed: 11/30/2022]
Affiliation(s)
- Xiaomeng Li
- Key Laboratory of Environment Correlative Dietology, National Research and Development Centre for Egg Processing, Hubei Hongshan Laboratory, College of Food Science and Technology Huazhong Agricultural University Wuhan China
| | - Chaoqing Tang
- Key Laboratory of Environment Correlative Dietology, National Research and Development Centre for Egg Processing, Hubei Hongshan Laboratory, College of Food Science and Technology Huazhong Agricultural University Wuhan China
| | - Mohamed Salama
- Key Laboratory of Environment Correlative Dietology, National Research and Development Centre for Egg Processing, Hubei Hongshan Laboratory, College of Food Science and Technology Huazhong Agricultural University Wuhan China
- Dairy Department National Research Centre Giza Egypt
| | - Minquan Xia
- Key Laboratory of Environment Correlative Dietology, National Research and Development Centre for Egg Processing, Hubei Hongshan Laboratory, College of Food Science and Technology Huazhong Agricultural University Wuhan China
| | - Xi Huang
- Key Laboratory of Environment Correlative Dietology, National Research and Development Centre for Egg Processing, Hubei Hongshan Laboratory, College of Food Science and Technology Huazhong Agricultural University Wuhan China
| | - Long Sheng
- Key Laboratory of Environment Correlative Dietology, National Research and Development Centre for Egg Processing, Hubei Hongshan Laboratory, College of Food Science and Technology Huazhong Agricultural University Wuhan China
| | - Zhaoxia Cai
- Key Laboratory of Environment Correlative Dietology, National Research and Development Centre for Egg Processing, Hubei Hongshan Laboratory, College of Food Science and Technology Huazhong Agricultural University Wuhan China
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Heikal SA, Salama M, Richard Y, Moustafa AA, Lawlor B. The Impact of Disease Registries on Advancing Knowledge and Understanding of Dementia Globally. Front Aging Neurosci 2022; 14:774005. [PMID: 35197840 PMCID: PMC8859161 DOI: 10.3389/fnagi.2022.774005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 01/14/2022] [Indexed: 12/01/2022] Open
Abstract
To help address the increasing challenges related to the provision of dementia care, dementia registries have emerged around the world as important tools to gain insights and a better understanding of the disease process. Dementia registries provide a valuable source of standardized data collected from a large number of patients. This review explores the published research relating to different dementia registries around the world and discusses how these registries have improved our knowledge and understanding of the incidence, prevalence, risk factors, mortality, diagnosis, and management of dementia. A number of the best-known dementia registries with high research output including SveDem, NACC, ReDeGi, CREDOS and PRODEM were selected to study the publication output based on their data, investigate the key findings of these registry-based studies. Registries data contributed to understanding many aspects of the disease including disease prevalence in specific areas, patient characteristics and how they differ in populations, mortality risks, as well as the disease risk factors. Registries data impacted the quality of patients’ lives through determining the best treatment strategy for a patient based on previous patient outcomes. In conclusion, registries have significantly advanced scientific knowledge and understanding of dementia and impacted policy, clinical practice care delivery.
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Affiliation(s)
- Shimaa A. Heikal
- Institute of Global Health and Human Ecology (IGHHE), The American University in Cairo (AUC), New Cairo, Egypt
- *Correspondence: Shimaa A. Heikal,
| | - Mohamed Salama
- Institute of Global Health and Human Ecology (IGHHE), The American University in Cairo (AUC), New Cairo, Egypt
- Medical Experimental Research Center (MERC), Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Yuliya Richard
- Blue Horizon Counseling Services, Sydney, NSW, Australia
| | - Ahmed A. Moustafa
- School of Psychology, Faculty of Society and Design, Bond University, Gold Coast, QLD, Australia
- Department of Human Anatomy and Physiology, The Faculty of Health Sciences, University of Johannesburg, Johannesburg, South Africa
| | - Brian Lawlor
- Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin, Ireland
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Helmy A, Hamid E, Salama M, Gaber A, El-Belkimy M, Shalash A. Baseline predictors of progression of Parkinson's disease in a sample of Egyptian patients: clinical and biochemical. Egypt J Neurol Psychiatr Neurosurg 2022; 58:9. [PMID: 35068922 PMCID: PMC8760567 DOI: 10.1186/s41983-022-00445-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 01/01/2022] [Indexed: 01/21/2023] Open
Abstract
Background Clinical progression of Parkinson’s disease (PD) is highly heterogeneous, and its predictors are generally lacking. Identifying predictors of early disease progression is important for patients’ management and follow-up. The current study aims to identify clinical, neuroimaging and biochemical baseline predictors of motor progression in patients with PD. Forty-five PD patients were assessed at baseline, 6 months and 1 year using MDS-UPDRS total and subscores, Hoehn and Yahr (H&Y), Schwab and England (S&E), International Physical Activity Questionnaire (IPAQ). Baseline New Freezing of Gait Questionnaire (NFOG-Q), Berg Balance Scale (BBS), Ten-Meter Walking Test (10-MWT), and Time Up and Go Test (TUG), Non-Motor Symptoms Scale (NMSS), Beck Depression Inventory (BDI), PD questionnaire 39 (PDQ-39), MRI brain, uric acid, lipid profile and glycated hemoglobin were performed. Results Significant worsening of MDS-UPDRS total, part III scores, H&Y, S&E and IPAQ (p < 0.001) was detected. One-year progression of H&Y and S&E were significantly correlated to disease duration (p = 0.014, p = 0.025, respectively). Progression of H&Y was correlated to baseline TUG (p = 0.035). S&E progression was correlated to baseline MDS-UPDRS total score (rho = 0.478, p = 0.001) and part III (rho = 0.350, p = 0.020), H&Y (rho = 0.401, p = 0.007), PIGD (rho = 0.591, p < 0.001), NFOG-Q (rho = 0.498, p = 0.001), and TUG (rho = 0.565, p = 0.001). Using linear regression, there was no predictors of clinical progression among the used baseline variables. Conclusion Despite the significant motor and physical activity progression over 1 year that was correlated to baseline motor and gait severity, but without predictive value, further similar and longitudinal studies are warranted to detect predictors of early progression and confirm findings. Supplementary Information The online version contains supplementary material available at 10.1186/s41983-022-00445-1.
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Affiliation(s)
- Asmaa Helmy
- Department of Neurology, Faculty of Medicine, Ain Shams University, 168 Elnozha St, Saint Fatima Square, Heliopolis, Cairo, Egypt
| | - Eman Hamid
- Department of Neurology, Faculty of Medicine, Ain Shams University, 168 Elnozha St, Saint Fatima Square, Heliopolis, Cairo, Egypt
| | - Mohamed Salama
- Institute of Global Health and Human Ecology (I-GHHE), The American University in Cairo, Cairo, Egypt.,Faculty of Medicine, Al-Mansoura University, Mansoura, Egypt
| | - Ahmed Gaber
- Department of Neurology, Faculty of Medicine, Ain Shams University, 168 Elnozha St, Saint Fatima Square, Heliopolis, Cairo, Egypt
| | - Mahmoud El-Belkimy
- Department of Neurology, Faculty of Medicine, Ain Shams University, 168 Elnozha St, Saint Fatima Square, Heliopolis, Cairo, Egypt
| | - Ali Shalash
- Department of Neurology, Faculty of Medicine, Ain Shams University, 168 Elnozha St, Saint Fatima Square, Heliopolis, Cairo, Egypt
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Salama M, Mostafa A, Salama N, Alabrak M, Abdalaleem S, Hanafy A. Renal AML Surgically Treated 33 Cases. Open Access Maced J Med Sci 2022. [DOI: 10.3889/oamjms.2022.7300] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND: Renal angiomyolipoma (RAML) is a rare benign neoplasm with a prevalence varying between 0.2% and 0.6% and a strong female predilection. They occur as sporadic, isolated entities in 80% of cases. The remaining 20% of angiomyolipomas (AMLs) develop in association with tuberous sclerosis complex or pulmonary lymphangioleiomyomatosis.
AIM: We describe our 10-year experience with AML and discuss the treatment strategies employed at our center.
METHODS: The medical records of all 33 patients with pathologically confirmed RAML treated either by nephrectomy or nephron-sparing surgery at our center over 10 years were reviewed for patient age and sex, tumor location and size, association with TBS.
RESULTS: There were 28 females (84.8%) and 5 males (15.2%) with a median age that was 52 (range 22–74) years at the time of surgery. Thirty patients (90.9%) had sporadic isolated AML, and 3 patients (9.1%) had AML with TBS. The tumor was in the right kidney in 15 (45.5%) patients, in the left kidney in 17 (51.5%) patients, and bilateral in only 1 patient (3%) who was diagnosed with TBS. At presentation, flank pain was the main symptom in 23 patients (69.7%).
CONCLUSIONS: Surgical resection of RAML provides short-term symptomatic relieve and long-term survival.
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Salama M, Khater A, Adel I, Selim M. National Cancer Institute Experience in Micro-invasive Breast Carcinoma Treatment and Outcome. Open Access Maced J Med Sci 2022. [DOI: 10.3889/oamjms.2022.7613] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
AbstractBackground: Significant relationship between breast cancer immunophenotype and risk of recurrence either local and/or distant may help determine which patients might benefit more from axillary staging and whether axillary staging is warranted in all cases or not. Patients with microinvasive carcinoma can present with axillary LN. metastasis, with incidence ranges from 0% to 20% . Thus, sentinel node biopsies are considered for patients with microinvasive carcinoma. The role of axillary staging in MIBC is not well defined, with the rate of axillary L.N. metastases ranging 0–11 %. Current studies focus on the clinical characteristics of MIBC. However, only a few studies have evaluated the survival and treatment, especially adjuvant chemotherapy after surgery, for patients with MIBC.Methods: This is a retrospective study of 139 cases diagnosed with microinvasive breast carcinoma from 2011 to 2015 who were identified in the National Cancer Institute, Cairo University. The pathologic database of our hospital was searched to identify patients with a pathologic diagnosis of MIBC on surgical specimens. The clinical features, sonographic and mammographic images and pathology records were reviewed.Results: There is increased incidence of MIBC over the past decade. Patients with MIBC were managed surgically with BCS. MIBC have the good prognosis. However, patients who are negative hormonal receptors have relatively substantial risk of relapse within the first 5 years after surgical operation. Adjuvant chemotherapy can only improve the outcomes of patients with negative hormonal receptors. Further studies with prolonged follow-up of large cohort are warranted to assess the prognostic significance and treatment of this lesion.Keywords: MIBC, CIS, DCIS, BC
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Yousef MH, Salama M, El-Fawal HAN, Abdelnaser A. Selective GSK3β Inhibition Mediates an Nrf2-Independent Anti-inflammatory Microglial Response. Mol Neurobiol 2022; 59:5591-5611. [PMID: 35739410 PMCID: PMC9395457 DOI: 10.1007/s12035-022-02923-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Accepted: 06/10/2022] [Indexed: 12/15/2022]
Abstract
Glycogen synthase kinase 3 (GSK3) is associated with the proinflammatory phenotype of microglia and has been shown to act in concert with nuclear factor kappa B (NF-κB). GSK3 is also a suppressor of nuclear factor erythroid 2-related factor 2 (Nrf2), the principal regulator of redox homeostasis. Agreeing with the oxidative paradigm of aging, Nrf2 is often deregulated in parainflammatory and neurodegenerative diseases. In this study, we aimed to explore a multimodal disease-modifying utility of GSK3 inhibition, beyond neuronal proteopathologies. Furthermore, we aimed to underscore the difference in therapeutic value between the two GSK3 paralogs by isoform-selective chemical inhibition. The anti-inflammatory effects of paralog-selective GSK3 inhibitors were evaluated as a function of the reductive capacity of each to mitigate LPS-induced activation of SIM-A9 microglia. The Griess method was employed to detect the nitrate-lowering capacity of selective GSK3 inhibition. Real-time PCR was used to assess post-treatment expression levels of pro-inflammatory markers and antioxidant genes; pro-inflammatory cytokines were assayed by ELISA. Nuclear lysates of treated cells were examined for Nrf2 and NF-κB accumulation by immunoblotting. Finally, to infer whether the counter-inflammatory activity of GSK3 inhibition was Nrf2-dependent, DsiRNA-mediated knockdown of Nrf2 was attempted. Results from our experiments reveal a superior anti-inflammatory and anti-oxidative efficacy for GSK3β-selective inhibition, compared to GSK3α-selective and non-selective pan-inhibition; hence, use of selective GSK3β inhibitors is likely to be more propitious than non-selective dual inhibitors administered at comparable doses. Moreover, our results suggest that the anti-inflammatory effects of GSK3 inhibition are not Nrf2 dependent.
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Affiliation(s)
- Mohamed H Yousef
- School of Sciences and Engineering, Biotechnology Graduate Program, The American University in Cairo, P.O. Box: 74, Cairo, Egypt
| | - Mohamed Salama
- Institute of Global Health and Human Ecology, School of Sciences and Engineering, The American University in Cairo, P.O. Box: 74, Cairo, Egypt
| | - Hassan A N El-Fawal
- Institute of Global Health and Human Ecology, School of Sciences and Engineering, The American University in Cairo, P.O. Box: 74, Cairo, Egypt
| | - Anwar Abdelnaser
- Institute of Global Health and Human Ecology, School of Sciences and Engineering, The American University in Cairo, P.O. Box: 74, Cairo, Egypt.
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Salama M, Hassanein O, Shaalan O, Yassen A. Clinical effectiveness of high definition fluorescence camera in detection of initial occlusal caries. J Clin Exp Dent 2022; 14:e177-e184. [PMID: 35173901 PMCID: PMC8842291 DOI: 10.4317/jced.59185] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 01/24/2022] [Indexed: 11/30/2022] Open
Abstract
Background Although visual inspection is the preferred route in everyday clinical practise for detecting early caries lesions, novel technologies like light fluorescence-based devices (Vista Proof iX HD smart) have been developed to enhance early caries detection.
Material and Methods Occlusal surface of 45 molar and 49 premolar teeth from 34 adult participants who fulfilled the eligibility criteria were examined by two observers using three diagnostic methods. Examination was performed visually using the International Caries Detection and Assessment System (ICDAS-II) followed by Vista Proof. Fissurotomy was applied for histological validation. Intra- and inter-observer agreement were measured for ICDAS-II and light-induced fluorescence camera using Kappa test. The overall diagnostic accuracy parameters, area under the receiver operating characteristic curve (AUC-ROC) and 95% confidence interval (95% CI) of the (AUC) for caries detection by Vista Poof were evaluated.
Results For ICDAS-II and Vista Proof methods, there was almost perfect intra- and inter-observer agreement. Based on ICDAS-II as a reference standard 1, Vista Proof showed a low level of agreement in enamel carious lesion detection with low sensitivity value of 48%, high specificity of 100%, and AUC was 0.112, while a high level of agreement in dentin carious lesion detection with high sensitivity value of 100%, low specificity of 48% and AUC was 0.888. Based on fissurotomy as reference standard 2, Vista Proof showed a high level of agreement in dentin carious lesion detection with high sensitivity value of 95% and 0% specificity and AUC was 0.814.
Conclusions Quantitative light-induced fluorescence camera with reference to ICDAS-II is considered as an accurate diagnostic modality for detection of early occlusal caries. Histological findings validate the diagnostic accuracy of the camera in dentin. Key words:Histological validation, Initial caries, ICDAS, Light induced fluorescence, Vista Cam.
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Haidar MA, Ibeh S, Shakkour Z, Reslan MA, Nwaiwu J, Moqidem YA, Sader G, Nickles RG, Babale I, Jaffa AA, Salama M, Shaito A, Kobeissy F. Crosstalk between Microglia and Neurons in Neurotrauma: An Overview of the Underlying Mechanisms. Curr Neuropharmacol 2022; 20:2050-2065. [PMID: 34856905 PMCID: PMC9886840 DOI: 10.2174/1570159x19666211202123322] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 11/12/2021] [Accepted: 11/18/2021] [Indexed: 11/22/2022] Open
Abstract
Microglia are the resident immune cells of the brain and play a crucial role in housekeeping and maintaining homeostasis of the brain microenvironment. Upon injury or disease, microglial cells become activated, at least partly, via signals initiated by injured neurons. Activated microglia, thereby, contribute to both neuroprotection and neuroinflammation. However, sustained microglial activation initiates a chronic neuroinflammatory response which can disturb neuronal health and disrupt communications between neurons and microglia. Thus, microglia-neuron crosstalk is critical in a healthy brain as well as during states of injury or disease. As most studies focus on how neurons and microglia act in isolation during neurotrauma, there is a need to understand the interplay between these cells in brain pathophysiology. This review highlights how neurons and microglia reciprocally communicate under physiological conditions and during brain injury and disease. Furthermore, the modes of microglia-neuron communication are exposed, focusing on cell-contact dependent signaling and communication by the secretion of soluble factors like cytokines and growth factors. In addition, it has been discussed that how microglia-neuron interactions could exert either beneficial neurotrophic effects or pathologic proinflammatory responses. We further explore how aberrations in microglia-neuron crosstalk may be involved in central nervous system (CNS) anomalies, namely traumatic brain injury (TBI), neurodegeneration, and ischemic stroke. A clear understanding of how the microglia-neuron crosstalk contributes to the pathogenesis of brain pathologies may offer novel therapeutic avenues of brain trauma treatment.
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Affiliation(s)
- Muhammad Ali Haidar
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Stanley Ibeh
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Zaynab Shakkour
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Mohammad Amine Reslan
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Judith Nwaiwu
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Yomna Adel Moqidem
- Biotechnology Program, School of Science and Engineering, The American University in Cairo, Cairo, Egypt
| | - Georgio Sader
- Faculty of Medicine, University of Balamand, Balamand, Lebanon
| | - Rachel G. Nickles
- Program for Neurotrauma, Neuroproteomics & Biomarkers Research, Departments of Emergency Medicine, University of Florida, Gainesville, FL 32611, USA
| | - Ismail Babale
- Department of Biomedical Engineering, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Aneese A. Jaffa
- Department of Biology, Faculty of Arts and Sciences, American University of Beirut, Beirut, Lebanon
| | - Mohamed Salama
- Institute of Global Health and Human Ecology (I-GHHE), The American University in Cairo, New Cairo 11835, Egypt
- Global Brain Health Institute (GBHI), Trinity College Dublin, Dublin, Ireland
| | - Abdullah Shaito
- Biomedical Research Center, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Firas Kobeissy
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
- Department of Biomedical Engineering, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
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Salama M, Salama M, shabaz C, Yadav H. P102 FEMORAL NERVE PALSY POST OPEN INGUINAL HERNIA REPAIR - CASE REPORT AND LITERATURE REVIEW. Br J Surg 2021. [DOI: 10.1093/bjs/znab395.095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Aim and Introduction
“Inguinal hernia repair is one of the most common surgical procedures performed worldwide. Postoperative pain control is very important and recently nerve block has gained popularity as an alternative to opioid use. Transient femoral nerve palsy (TNFP) is a potential complication of ilioinguinal nerve block, but it is extremely rare with only a few cases reported. We discuss a case of TNFP post-left inguinal hernia repair to highlight this rare complication.”
Material and Methods
“Case Report: A 17-year-old male with clinically and radiologically confirmed left inguinal hernia underwent open mesh repair (Lichtenstein repair). At the end of the procedure, he had ilioinguinal and iliohypogastric nerve block (10ml, 0.5% bupivacaine). In the recovery room, he developed numbness of his anteromedial aspect of his left thigh with weakness of hip flexion and paralysis of quadriceps with an inability to extend his knee. He was reviewed by the anaesthetic team and was admitted overnight. His symptoms resolved spontaneously within 18 hours. He was subsequently discharged and followed up in the surgical OPD 2 weeks, 6 weeks and 6 months later and there were no residual neurological symptoms.”
Results and Conclusion
“TNFP post open hernia repair is very rare. Mechanisms of femoral nerve injury include suturing, stapling, scar tissue entrapment or direct compression. Careful attention is needed to the technique of local anaesthesia post-operatively (avoid deep infiltration, lowest volume and concentration used, ultrasound use) to avoid potential morbidity if this complication is not recognised.”
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Affiliation(s)
- Mohamed Salama
- Our Lady of Lourdes Hospital Drogheda, Drogheda, Ireland
| | - Mahmoud Salama
- Trinity College, The University of Dublin, School of Medicine, Dublin, Ireland
| | - c. shabaz
- Our Lady of Lourdes Hospital, Drogheda, Ireland
| | - Himanshu Yadav
- Our Lady of Lourdes Hospital, General Surgery, Drogheda, Ireland
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Salama M, Salama M, Nasr A, Yadav H, Sami B. P125 MANAGEMENT OF PERICAECAL HERNIA CAUSING SMALL BOWEL OBSTRUCTION IN THE EVOLVING ERA OF LAPAROSCOPY. A CASE REPORT AND LITERATURE REVIEW. Br J Surg 2021. [DOI: 10.1093/bjs/znab395.118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Introduction
“Internal hernias are an unusual cause of intestinal obstruction. Pericaecal hernias are an exceptionally rare type of internal hernia.
Laparoscopy for small bowel obstruction was previously considered inappropriate. We present a case of Pericaecal hernia causing small bowel obstruction treated successfully with a laparoscopic approach.”
Case-Report
“64 year old man presented with abdominal pain, vomiting and constipation for 3 days, no previous surgery. Small bowel obstruction confirmed on PFA and CT. He was treated conservatively for 10 days without settling. A an exploratory laparoscopy revealed a Pericaecal hernia. This was reduced with gentle manoeuvre and the peritoneal folds were divided to prevent recurrence. Recovery was uneventful.”
Discussion
“Perioperative diagnosis of internal hernia is extremely difficult. Pericaecal hernia is an uncommon type of internal hernia. CT diagnosis of internal hernia remains difficult. Laparoscopy is a valuable tool for diagnosis and treatment with the advantage of minimal invasiveness. However, the laparoscopic manipulation of distended bowel loops remain controversial because of high risk of perforation, reduced space to work in the peritoneal cavity and requirement of advanced laparoscopic skills. Laparoscopic treatment of Pericaecal hernia was reported about 17 years ago but has since been reported more frequently and in recent years there is a move towards laparoscopic diagnosis and management of Pericaecal hernias.”
Conclusions
“CT diagnosis of internal hernia remains difficult. With the advent of minimal access surgery, diagnostic laparoscopy may be a safe and feasible modality to diagnose and deliver definitive treatment of small bowel obstruction secondary to Pericaecal hernia.”
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Affiliation(s)
- Mohamed Salama
- Our Lady of Lourdes Hospital Drogheda, Drogheda, Ireland
| | - Mahmoud Salama
- Trinity College, The University of Dublin, School of Medicine, Dublin, Ireland
| | - Abdulrahman Nasr
- Our Lady of Lourdes Hospital, Rcsi Group, General Surgery, Drogheda, Ireland
| | - Himanshu Yadav
- Our Lady of Lourdes Hospital, General Surgery, Drogheda, Ireland
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Salem AE, Zaki YH, El-Hussieny G, ElNoueam KI, Shaaban AM, Koppula BR, Bustoros M, Salama M, Elsayes KM, Morton K, Covington MF. An Overview of Selected Rare B-Cell Lymphoproliferative Disorders: Imaging, Histopathologic, and Clinical Features. Cancers (Basel) 2021; 13:cancers13225853. [PMID: 34831006 PMCID: PMC8616256 DOI: 10.3390/cancers13225853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/18/2021] [Accepted: 11/18/2021] [Indexed: 11/16/2022] Open
Abstract
Lymphoproliferative disorders (LPD) are conditions characterized by the uncontrolled proliferation of B or T-cell lines. They encompass a wide spectrum of abnormalities, which may be broadly classified as reactive processes or malignant diseases, such as lymphoma, based on their cellular clonality and clinical behavior. While some of these disorders are rare, they may be encountered sporadically in clinical practice, causing diagnostic dilemmas owing to overlap in their clinical and imaging features with more common disorders. The updated 4th edition WHO classification of lymphoid neoplasms was released in 2016 to incorporate the rapid clinical, pathological, molecular biology and cytogenetic advances of some of these disorders. Despite these updates, very little information is presented in the literature from the radiology perspective. The aim of this article is to familiarize radiologists and other physicians with certain rare variants of B-cell lymphoproliferative disorders with a focus on imaging features of these disorders, as well as to provide an overview of some important updates contained within the new WHO classification of lymphoid neoplasms.
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Affiliation(s)
- Ahmed Ebada Salem
- Department of Radiology and Imaging Sciences, Utah University School of Medicine, Salt Lake City, UT 84123, USA; (A.E.S.); (A.M.S.); (B.R.K.); (K.M.); (M.F.C.)
- Department of Radiodiagnosis and Intervention, Faculty of Medicine, Alexandria University, Alexandria 21566, Egypt; (Y.H.Z.); (K.I.E.)
| | - Yehia H. Zaki
- Department of Radiodiagnosis and Intervention, Faculty of Medicine, Alexandria University, Alexandria 21566, Egypt; (Y.H.Z.); (K.I.E.)
| | - Gamal El-Hussieny
- Department of Medical Oncology and Nuclear Medicine, Faculty of Medicine, Alexandria University, Alexandria 21566, Egypt;
| | - Khaled I. ElNoueam
- Department of Radiodiagnosis and Intervention, Faculty of Medicine, Alexandria University, Alexandria 21566, Egypt; (Y.H.Z.); (K.I.E.)
| | - Akram M. Shaaban
- Department of Radiology and Imaging Sciences, Utah University School of Medicine, Salt Lake City, UT 84123, USA; (A.E.S.); (A.M.S.); (B.R.K.); (K.M.); (M.F.C.)
| | - Bhasker Rao Koppula
- Department of Radiology and Imaging Sciences, Utah University School of Medicine, Salt Lake City, UT 84123, USA; (A.E.S.); (A.M.S.); (B.R.K.); (K.M.); (M.F.C.)
| | - Mark Bustoros
- Division of Hematology and Medical Oncology, Weil Cornell Medicine, Cornell University, New York, NY 10021, USA;
| | - Mohamed Salama
- Department of Pathology, Mayo Clinic, Rochester, MN 55901, USA;
| | - Khaled M. Elsayes
- Department of Diagnostic Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
- Correspondence: ; Tel.: +1-713-745-3025
| | - Kathryn Morton
- Department of Radiology and Imaging Sciences, Utah University School of Medicine, Salt Lake City, UT 84123, USA; (A.E.S.); (A.M.S.); (B.R.K.); (K.M.); (M.F.C.)
| | - Matthew F. Covington
- Department of Radiology and Imaging Sciences, Utah University School of Medicine, Salt Lake City, UT 84123, USA; (A.E.S.); (A.M.S.); (B.R.K.); (K.M.); (M.F.C.)
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Salem AE, Zaki YH, El-Hussieny G, ElNoueam KI, Shaaban AM, Koppula BR, Yang M, Salama M, Elsayes KM, Covington MF. Uncommon Variants of Mature T-Cell Lymphomas (MTCLs): Imaging and Histopathologic and Clinical Features with Updates from the Fourth Edition of the World Health Organization (WHO) Classification of Lymphoid Neoplasms. Cancers (Basel) 2021; 13:cancers13205217. [PMID: 34680362 PMCID: PMC8534015 DOI: 10.3390/cancers13205217] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/12/2021] [Accepted: 10/13/2021] [Indexed: 12/23/2022] Open
Abstract
Simple Summary Familiarity with the updated fourth edition WHO classification of lymphoid malignancies released in 2016, and the new terminology introduced, is crucial for oncologists, pathologists and radiologists. It is mandatory to be aware of rare variants of T-cell lymphomas, specifically mature T-cell lymphomas, including clinicopathologic keys and the most common imaging features and sites of involvement for each subtype. Even though some of these disorders may have perceptible clinical and imaging features, they may overlap with more common disorders, causing delay in diagnosis and treatment. Understanding the appropriate clinical setting and imaging findings will help radiologists to include these disorders in their differential diagnosis. Imaging plays a pivotal role in subclassifying these subtypes of MTCLs, affecting prognosis and treatment implications. Many of these disorders if diagnosed early can be potentially treatable, and early, aggressive intervention may be lifesaving. Abstract Understanding the pathogenesis and molecular biology of malignant lymphomas is challenging, given the complex nature and incongruity of these disorders. The classification of lymphoma is continually evolving to account for advances in clinical, pathological, molecular biology and cytogenetic aspects, which impact our understanding of these disorders. The latest fourth edition of the WHO classification of lymphoid malignancies was released in 2016 to account for these changes. Additionally, unlike B-cell lymphomas (BCL), T-cell lymphomas (TCL) are uncommon, and may be sporadically experienced in clinical practice. These disorders are rare, thus early diagnosis is challenging for both physicians and radiologists, owing to the overlap in clinical and imaging features with other, more common disorders. We aim to discuss some rare variants of T-cell lymphomas, including clinicopathologic and imaging features, as well as to give a glimpse of the updates contained within the new 2016 WHO classification.
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Affiliation(s)
- Ahmed Ebada Salem
- Department of Radiology and Imaging Sciences, Utah University School of Medicine, Salt Lake City, UT 84132, USA; (A.E.S.); (A.M.S.); (B.R.K.); (M.F.C.)
- Department of Radio Diagnosis, Faculty of Medicine, Alexandria University, Alexandria 21526, Egypt; (Y.H.Z.); (K.I.E.)
| | - Yehia H. Zaki
- Department of Radio Diagnosis, Faculty of Medicine, Alexandria University, Alexandria 21526, Egypt; (Y.H.Z.); (K.I.E.)
| | - Gamal El-Hussieny
- Department of Medical Oncology and Nuclear Medicine, Faculty of Medicine, Alexandria University, Alexandria 21526, Egypt;
| | - Khaled I. ElNoueam
- Department of Radio Diagnosis, Faculty of Medicine, Alexandria University, Alexandria 21526, Egypt; (Y.H.Z.); (K.I.E.)
| | - Akram M. Shaaban
- Department of Radiology and Imaging Sciences, Utah University School of Medicine, Salt Lake City, UT 84132, USA; (A.E.S.); (A.M.S.); (B.R.K.); (M.F.C.)
| | - Bhasker Rao Koppula
- Department of Radiology and Imaging Sciences, Utah University School of Medicine, Salt Lake City, UT 84132, USA; (A.E.S.); (A.M.S.); (B.R.K.); (M.F.C.)
| | - Ming Yang
- Division of Radiology, Mayo Clinic, Phoenix, AZ 85054, USA;
| | - Mohamed Salama
- Department of Pathology, Mayo Clinic, Rochester, MN 55905, USA;
| | - Khaled M. Elsayes
- Department of Diagnostic Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
- Correspondence: ; Tel.: +1-713-745-3025
| | - Matthew F. Covington
- Department of Radiology and Imaging Sciences, Utah University School of Medicine, Salt Lake City, UT 84132, USA; (A.E.S.); (A.M.S.); (B.R.K.); (M.F.C.)
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Moustafa SA, Mohamed S, Dawood A, Azar J, Elmorsy E, Rizk NAM, Salama M. Gut brain axis: an insight into microbiota role in Parkinson's disease. Metab Brain Dis 2021; 36:1545-1557. [PMID: 34370175 DOI: 10.1007/s11011-021-00808-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 07/22/2021] [Indexed: 12/24/2022]
Abstract
Parkinson's disease (PD) is one of the most common progressive neurodegenerative diseases. It is characterized neuropathologically by the presence of alpha-synuclein containing Lewy Bodies in the substantia nigra of the brain with loss of dopaminergic neurons in the pars compacta of the substantia nigra. The presence of alpha-synuclein aggregates in the substantia nigra and the enteric nervous system (ENS) drew attention to the possibility of a correlation between the gut microbiota and Parkinson's disease. The gut-brain axis is a two-way communication system, which explains how through the vagus nerve, the gut microbiota can affect the central nervous system (CNS), including brain functions related to the ENS, as well as how CNS can alter various gut secretions and immune responses. As a result, this dysbiosis or alteration in gut microbiota can be an early sign of PD with reported changes in short chain fatty acids, bile acids, and lipids. This gave rise to the use of probiotics and faecal microbiota transplantation as alternative approaches to improve the symptoms of patients with PD. The aim of this review is to discuss investigations that have been done to explore the gastrointestinal involvement in Parkinson's disease, the effect of dysbiosis, and potential therapeutic strategies for PD.
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Affiliation(s)
- Sara Ayman Moustafa
- Institute of Global Health and Human Ecology (IGHHE) Graduate Program, The American University in Cairo, New Cairo, 11835, Egypt
| | - Shrouk Mohamed
- Nanotechnology Graduate Program, The American University in Cairo, New Cairo, 11835, Egypt
| | - Abdelhameed Dawood
- Biotechnology Graduate Program, The American University in Cairo, New Cairo, 11835, Egypt
| | - Jihan Azar
- Institute of Global Health and Human Ecology (IGHHE) Graduate Program, The American University in Cairo, New Cairo, 11835, Egypt
| | - Ekramy Elmorsy
- Toxicology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
- Pathology Department, Faculty of Medicine, Northern Border University-ARAR, North Region, Arar, Saudi Arabia
| | - Noura A M Rizk
- Molecular, Genetic and Population Health Sciences, College of Medicine and Veterinary Medicine, The University of Edinburgh, Edinburgh, UK
| | - Mohamed Salama
- Institute of Global Health and Human Ecology (IGHHE) Graduate Program, The American University in Cairo, New Cairo, 11835, Egypt.
- Toxicology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt.
- Global Brain Health Institute, Trinity College Dublin, Dublin, Ireland.
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Lotfy A, Ali NS, Abdelgawad M, Salama M. Mesenchymal stem cells as a treatment for multiple sclerosis: a focus on experimental animal studies. Rev Neurosci 2021; 31:161-179. [PMID: 31605598 DOI: 10.1515/revneuro-2019-0040] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Accepted: 06/14/2019] [Indexed: 12/18/2022]
Abstract
Multiple sclerosis (MS) is a progressive and debilitating neurological condition in which the immune system abnormally attacks the myelin sheath insulating the nerves. Mesenchymal stem cells (MSCs) are found in most adult tissues and play a significant systemic role in self-repair. MSCs have promising therapeutic effects in many diseases, such as autoimmune diseases, including MS. MSCs have been tested in MS animal models, such as experimental autoimmune encephalomyelitis. Other studies have combined other agents with MSCs, genetically modified MSCs, or used culture medium from MSCs. In this review, we will summarize these studies and compare the main factors in each study, such as the source of MSCs, the type of animal model, the route of injection, the number of injected cells, and the mechanism of action.
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Affiliation(s)
- Ahmed Lotfy
- Biotechnology and Life Sciences Department, Faculty of Postgraduate Studies for Advanced Sciences (PSAS), Beni-Suef University, Beni-Suef 62511, Egypt, e-mail:
| | - Nourhan S Ali
- Biotechnology and Life Sciences Department, Faculty of Postgraduate Studies for Advanced Sciences (PSAS), Beni-Suef University, Beni-Suef 62511, Egypt
| | - Mai Abdelgawad
- Biotechnology and Life Sciences Department, Faculty of Postgraduate Studies for Advanced Sciences (PSAS), Beni-Suef University, Beni-Suef 62511, Egypt
| | - Mohamed Salama
- Medical Experimental Research Center (MERC), Faculty of Medicine, Mansoura University, Mansourah, Ad Daqahliyah, Egypt.,Institute of Global Health and Human Ecology (IGHHE), American University in Cairo (AUC), Cairo, Egypt
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Abd-Elkader AM, Salama M, Oraby SY. Effect of adding heat-stressed tomato juice on some buffalo milk properties. Egypt J Chem 2021. [DOI: 10.21608/ejchem.2021.89961.4301] [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: 10/20/2022]
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