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McClatchy J, Strogantsev R, Wolfe E, Lin HY, Mohammadhosseini M, Davis BA, Eden C, Goldman D, Fleming WH, Conley P, Wu G, Cimmino L, Mohammed H, Agarwal A. Clonal hematopoiesis related TET2 loss-of-function impedes IL1β-mediated epigenetic reprogramming in hematopoietic stem and progenitor cells. Nat Commun 2023; 14:8102. [PMID: 38062031 PMCID: PMC10703894 DOI: 10.1038/s41467-023-43697-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 11/16/2023] [Indexed: 12/18/2023] Open
Abstract
Clonal hematopoiesis (CH) is defined as a single hematopoietic stem/progenitor cell (HSPC) gaining selective advantage over a broader range of HSPCs. When linked to somatic mutations in myeloid malignancy-associated genes, such as TET2-mediated clonal hematopoiesis of indeterminate potential or CHIP, it represents increased risk for hematological malignancies and cardiovascular disease. IL1β is elevated in patients with CHIP, however, its effect is not well understood. Here we show that IL1β promotes expansion of pro-inflammatory monocytes/macrophages, coinciding with a failure in the demethylation of lymphoid and erythroid lineage associated enhancers and transcription factor binding sites, in a mouse model of CHIP with hematopoietic-cell-specific deletion of Tet2. DNA-methylation is significantly lost in wild type HSPCs upon IL1β administration, which is resisted by Tet2-deficient HSPCs, and thus IL1β enhances the self-renewing ability of Tet2-deficient HSPCs by upregulating genes associated with self-renewal and by resisting demethylation of transcription factor binding sites related to terminal differentiation. Using aged mouse models and human progenitors, we demonstrate that targeting IL1 signaling could represent an early intervention strategy in preleukemic disorders. In summary, our results show that Tet2 is an important mediator of an IL1β-promoted epigenetic program to maintain the fine balance between self-renewal and lineage differentiation during hematopoiesis.
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Affiliation(s)
- J McClatchy
- Division of Oncological Sciences, Oregon Health & Science University, Portland, OR, USA
- Department of Cell, Developmental, and Cancer Biology, Oregon Health & Science University, Portland, OR, USA
| | - R Strogantsev
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA
| | - E Wolfe
- Division of Oncological Sciences, Oregon Health & Science University, Portland, OR, USA
- Department of Cell, Developmental, and Cancer Biology, Oregon Health & Science University, Portland, OR, USA
| | - H Y Lin
- Division of Oncological Sciences, Oregon Health & Science University, Portland, OR, USA
- Department of Cell, Developmental, and Cancer Biology, Oregon Health & Science University, Portland, OR, USA
| | - M Mohammadhosseini
- Division of Oncological Sciences, Oregon Health & Science University, Portland, OR, USA
- Department of Cell, Developmental, and Cancer Biology, Oregon Health & Science University, Portland, OR, USA
| | - B A Davis
- Division of Oncological Sciences, Oregon Health & Science University, Portland, OR, USA
- Department of Cell, Developmental, and Cancer Biology, Oregon Health & Science University, Portland, OR, USA
| | - C Eden
- Division of Oncological Sciences, Oregon Health & Science University, Portland, OR, USA
- Department of Cell, Developmental, and Cancer Biology, Oregon Health & Science University, Portland, OR, USA
| | - D Goldman
- Division of Hematology & Medical Oncology, Oregon Health & Science University, Portland, OR, USA
- Division of Pediatric Hematology and Oncology, Oregon Health & Science University, Portland, OR, USA
| | - W H Fleming
- Division of Hematology & Medical Oncology, Oregon Health & Science University, Portland, OR, USA
- Division of Pediatric Hematology and Oncology, Oregon Health & Science University, Portland, OR, USA
| | - P Conley
- Department of Medical Informatics and Clinical Epidemiology, Oregon Health & Science University, Portland, OR, USA
| | - G Wu
- Department of Medical Informatics and Clinical Epidemiology, Oregon Health & Science University, Portland, OR, USA
| | - L Cimmino
- University of Miami, Department of Biochemistry and Molecular Biology, Sylvester Comprehensive Cancer Center, Miami, USA
| | - H Mohammed
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA
| | - A Agarwal
- Division of Oncological Sciences, Oregon Health & Science University, Portland, OR, USA.
- Department of Cell, Developmental, and Cancer Biology, Oregon Health & Science University, Portland, OR, USA.
- Cancer Early Detection Advanced Research Center, Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA.
- Division of Hematology & Medical Oncology, Oregon Health & Science University, Portland, OR, USA.
- Department of Molecular and Medical Genetics, Oregon Health & Science University, Portland, OR, USA.
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Richardson D, Pakianathan M, Ewens M, Mitchell H, Mohammed H, Evans A. The new 2023 BASHH sexually transmitted enteric infections guideline. Sex Transm Infect 2023; 99:363-364. [PMID: 37460136 DOI: 10.1136/sextrans-2023-055849] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023] Open
Affiliation(s)
- Daniel Richardson
- University Hospitals Sussex NHS Foundation Trust, Brighton, UK
- Brighton and Sussex Medical School, Brighton, UK
| | | | | | - Holly Mitchell
- United Kingdom Health Security Agency (UKHSA), London, UK
- National Institute for Health and Care Research Health Protection Research Unit (NIHR HPRU) in Blood Borne and Sexually Transmitted Infections, University College London, London, UK
| | - Hasan Mohammed
- Chelsea and Westminster Hospital NHS Foundation Trust, London, UK
| | - Amy Evans
- Leeds Teaching Hospitals NHS Trust, Leeds, UK
- Clinical Effectiveness Group, BASHH, UK
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Richardson D, Pakianathan M, Ewens M, Mitchell H, Mohammed H, Wiseman E, Tweed M, Nichols K, Rawdah W, Cooper R, Macrowan R, Irish M, Evans A, Godbole G. British Association of Sexual Health and HIV (BASHH) United Kingdom national guideline for the management of sexually transmitted enteric infections 2023. Int J STD AIDS 2023:9564624231168217. [PMID: 37247427 DOI: 10.1177/09564624231168217] [Citation(s) in RCA: 2] [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] [Indexed: 05/31/2023]
Abstract
This is the first British Association of Sexual Health and HIV (BASHH) national guideline for the management of sexually transmitted enteric infections (STEI). This guideline is primarily aimed for level 3 sexual health clinics; however, it may also be applicable to other settings such as primary care or other hospital departments where individuals with STEI may present. This guideline makes recommendations on testing, management, partner notification and public health control of STEI.
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Affiliation(s)
- Daniel Richardson
- University Hospitals Sussex NHS Foundation Trust, Brighton, UK
- Brighton & Sussex Medical School, Brighton, UK
| | | | | | | | | | | | | | | | - Waseem Rawdah
- University Hospitals Sussex NHS Foundation Trust, Brighton, UK
| | - Richard Cooper
- University Hospitals Sussex NHS Foundation Trust, Brighton, UK
| | | | | | - Amy Evans
- University Hospitals Sussex NHS Foundation Trust, Brighton, UK
- Leeds Teaching Hospitals NHS Trust, Leeds, UK
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Bran C, Fernandez-Roldan JA, Moreno JA, Fraile Rodríguez A, Del Real RP, Asenjo A, Saugar E, Marqués-Marchán J, Mohammed H, Foerster M, Aballe L, Kosel J, Vazquez M, Chubykalo-Fesenko O. Domain wall propagation and pinning induced by current pulses in cylindrical modulated nanowires. Nanoscale 2023; 15:8387-8394. [PMID: 37092798 DOI: 10.1039/d3nr00455d] [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] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The future developments in 3D magnetic nanotechnology require the control of domain wall dynamics by means of current pulses. While this has been extensively studied in 2D magnetic strips (planar nanowires), few reports on this exist in cylindrical geometry, where Bloch point domain walls are expected to have intriguing properties. Here, we report an investigation on cylindrical magnetic Ni nanowires with geometrical notches. An experimental work based on synchrotron X-ray magnetic circular dichroism (XMCD) combined with photoemission electron microscopy (PEEM) indicates that large current densities induce domain wall nucleation, while smaller currents move domain walls preferably antiparallel to the current direction. In the region where no pinning centers are present, we found a domain wall velocity of about 1 km s-1. Thermal modelling indicates that large current densities temporarily raise the temperature in the nanowire above the Curie temperature, leading to nucleation of domain walls during the system cooling. Micromagnetic modelling with a spin-torque effect shows that for intermediate current densities, Bloch point domain walls with chirality parallel to the Oersted field propagate antiparallel to the current direction. In other cases, domain walls can be bounced from the notches and/or get pinned outside their positions. We thus found that current is not only responsible for domain wall propagation, but also is a source of pinning due to the Oersted field action.
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Affiliation(s)
- C Bran
- Instituto de Ciencia de Materiales de Madrid, CSIC, Madrid, 28049, Spain.
| | - J A Fernandez-Roldan
- Helmholtz-Zentrum Dresden-Rossendorf e.V., Institute of Ion Beam Physics and Materials Research, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - J A Moreno
- King Abdullah University of Science and Technology, Computer Electrical and Mathematical Science and Engineering, Thuwal 23955-6900, Saudi Arabia
| | - A Fraile Rodríguez
- Departament de Física de la Matèria Condensada, Universitat de Barcelona, Barcelona, 08028, Spain
- Institut de Nanociencia i Nanotecnologia (IN2UB), Universitat de Barcelona, Barcelona, 08028, Spain
| | - R P Del Real
- Instituto de Ciencia de Materiales de Madrid, CSIC, Madrid, 28049, Spain.
| | - A Asenjo
- Instituto de Ciencia de Materiales de Madrid, CSIC, Madrid, 28049, Spain.
| | - E Saugar
- Instituto de Ciencia de Materiales de Madrid, CSIC, Madrid, 28049, Spain.
| | - J Marqués-Marchán
- Instituto de Ciencia de Materiales de Madrid, CSIC, Madrid, 28049, Spain.
| | - H Mohammed
- King Abdullah University of Science and Technology, Computer Electrical and Mathematical Science and Engineering, Thuwal 23955-6900, Saudi Arabia
| | - M Foerster
- ALBA Synchrotron Light Facility, CELLS, Barcelona, 08290, Spain
| | - L Aballe
- ALBA Synchrotron Light Facility, CELLS, Barcelona, 08290, Spain
| | - J Kosel
- King Abdullah University of Science and Technology, Computer Electrical and Mathematical Science and Engineering, Thuwal 23955-6900, Saudi Arabia
- Silicon Austria Labs, Villach 9524, Austria
| | - M Vazquez
- Instituto de Ciencia de Materiales de Madrid, CSIC, Madrid, 28049, Spain.
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Sahar YJ, Mohammed H, Al-Abady ZN. Synthesis and characterization of new metal complexes containing azo-indole moiety and anti-leukemia human (HL-60) study of its palladium (II) complex. Results in Chemistry 2023. [DOI: 10.1016/j.rechem.2023.100847] [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: 02/13/2023] Open
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Solomon D, Gibbs J, Burns F, Mohammed H, Migchelsen SJ, Sabin CA. Sexual health inequalities among women aged 16-24. Eur J Public Health 2022. [DOI: 10.1093/eurpub/ckac129.158] [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: 11/14/2022] Open
Abstract
Abstract
Introduction
Gonorrhoea is the second most commonly diagnosed sexually transmitted infection in England, and diagnoses among young women increased 31% between 2018 and 2019. Understanding the patterns of testing and diagnosis among young women is likely to aid prevention among the most vulnerable segments of this population.
Methods
Data on gonorrhoea diagnoses at sexual health services among women aged 16-24 in England were obtained using the GUMCAD STI Surveillance System. We investigated the relationship between two exposure variables (deprivation and ethnicity), and two outcome variables (number of gonorrhoea tests and number of gonorrhoea diagnoses). Poisson regression was used to calculate rate ratios for the relationship between the exposure and outcome variables. The testing analysis was offset for the size of the population, and the diagnosis analysis was offset for the number of tests within the population.
Results
Between 2012 and 2019, gonorrhoea testing and diagnosis rates were highest among women living in the most deprived areas. The rate of testing in the least deprived 10% of neighbourhoods was significantly lower than that seen in the most deprived 10% of neighbourhoods (rate ratio (RR) 0.79; 95% confidence interval 0.79 - 0.80), and the rate of diagnosis in the least deprived 10% of neighbourhoods was around a third of that seen in the most deprived 10% of neighbourhoods (0.35; 0.33 - 0.36). When compared to White British women, the rate of gonorrhoea diagnosis was lower among Bangladeshi (RR 0.89; 0.75 - 1.05), Indian (0.76; 0.68 - 0.84), Pakistani (0.87; 0.77 - 1.00) and Chinese women (0.60; 0.51 - 0.71) and was highest among Black Caribbean (2.26; 2.18 - 2.33) and Black African (1.40; 1.34 - 1.45) women.
Conclusions
This analysis found inequalities in the distribution of gonorrhoea among young women in England that may indicate structural barriers to STI prevention that are affecting Black women and those living within the most deprived populations.
Key messages
• Gonorrhoea testing rates among young women in England are highest among women from deprived areas and Black women.
• Gonorrhoea diagnosis rates among young women in England are highest among women from deprived areas and Black women.
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Affiliation(s)
- D Solomon
- Institute for Global Health, University College London , London, UK
- NIHR Health Protection Research Unit, University College London , London, UK
| | - J Gibbs
- Institute for Global Health, University College London , London, UK
| | - F Burns
- Institute for Global Health, University College London , London, UK
- Royal Free London NHS Foundation Trust , London, UK
| | - H Mohammed
- NIHR Health Protection Research Unit, University College London , London, UK
- UK Health Security Agency , London, UK
| | | | - CA Sabin
- Institute for Global Health, University College London , London, UK
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Karegi I, Maina B, Mohammed H, Kwallah A, Onyambu F, Kariuki D, Kamau J. Antimicrobial Resistance Profile and Characterization of ESBLs in Escherichia coli from Camels in Northern Kenya. Int J Infect Dis 2022. [DOI: 10.1016/j.ijid.2021.12.018] [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: 11/27/2022] Open
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Mohammed H, Plicht B, Farah A, Ohlow M, El Garhy M, Hesham A, Ilse J, Schols W, Buck T. Transcatheter mitral valve repair (TMVR) using MitraClip in patients younger than 65 years: a multicenter analysis of 2-years outcomes. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2208] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
Abstract
Background
TMVR using MitraClip became a well-established interventional therapy for severe MR. However, TMVR has been almost only applied to old aged patients rejected from surgical therapy.
Objective
To present 2-years outcomes of 36 patients younger than 65 years with no surgical options treated by TMVR.
Methods
A retrospective clinical and TEE study was conducted to evaluate 36 patients younger than 65 years treated by TMVR in 3 heart centers.
Results
Mean age of the 36 study patients was 56.3±6.6 years, male gender was 72.2%. High operative risk was estimated by STS score (mean = 8.73±2.97) and EuroSCORE (mean = 24.71±12.79). All patients were refused for surgery by heart team decision, therefore admitted to TMVR. Baseline severity of MR was assessed by 3D-TEE based biplane vena contracta width (mean = 8.35±1.87 mm). Baseline transmitral mean pressure gradient was 1.81±0.78 mmHg. 21 patients showed mitral annular dilatation as the main cause of MR, 8 patients had leaflet prolapse, 4 patients exhibited papillary muscle displacement leading to leaflet tethering and 3 patients showed mitral leaflet thickening and/or retraction due to fibrosis. Procedural success was achieved in all patients with 1/2/3 clips implanted in 52.8%/44.4%/2.8% of cases with a mean of 1.5 clip per case. Two grades or more reduction in severity of MR (MR grade ≤ II/IV) was accomplished in 88.9% of patients. Mean postprocedural MPG was 3.78±1.96 mmHg. Average follow-up (FU) period was 25,8 months and the median was 20 months (25th–75th percentile: 12–36 months). During 2-years FU, statistically significant difference (p value <0.002) was detected for NT-proBNP levels compared to baseline (mean = 9870±10819, median = 7748, 25th–75th percentile: 2702–14237 pg/ml) and at follow up visits (mean = 7645±11292, median = 3263, 25th-75th percentile: 883–8078 pg/ml). Furthermore, persistent symptomatic improvement during FU, defined as NYHA functional class improvement by 2 or more Grades, was achieved in 69% of patient in parallel with efficient reduction of MR in 34 patients so that a second intervention by reclipping was required in 2 patients to correct recurrent significant MR. Only two patients experienced procedure-related complications by large puncture site hematoma. No procedure-related mortality during the first 30 days was detected. However, mortality was recorded in 2 patients during the first month and was attributed to severe advanced heart failure in one case and septicemia after exclusion of infective endocarditis in another case. Over 2 years FU, other 5 patients passed away, 3 cases owing to advanced heart failure, one case due to multi-organ failure and one because of tumor disease.
Conclusion
TMVR in patients younger than 65 years refused from surgical repair provides satisfactory clinical and echocardiography outcomes at 2 years. Future studies should evaluate the outcomes of MitraClip in this population in a larger cohort.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Hassan M.H. Mohammed received a scholarship grant from the Egyptian ministry of higher education and Minia University, Egypt.
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Affiliation(s)
- H Mohammed
- El-Minya University Hospital, El-Minya, Egypt
| | - B Plicht
- Westfalen Hospital Dortmund, Cardiology department, Dortmund, Germany
| | - A Farah
- Westfalen Hospital Dortmund, Cardiology department, Dortmund, Germany
| | - M Ohlow
- Central Clinic Bad Berka, Cardiology department, Bad Berka, Germany
| | - M El Garhy
- Central Clinic Bad Berka, Cardiology department, Bad Berka, Germany
| | - A Hesham
- Heart Center Duisburg, Cardiology department, Duisburg, Germany
| | - J Ilse
- Heart Center Duisburg, Cardiology department, Duisburg, Germany
| | - W Schols
- Heart Center Duisburg, Cardiology department, Duisburg, Germany
| | - T Buck
- Westfalen Hospital Dortmund, Cardiology department, Dortmund, Germany
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Khalihena Groune A, Med Lemine B, Adnane E, Mohammed H. Lipids study of Caranx rhonchus in Mauritanian Atlantic. Food Res 2021. [DOI: 10.26656/fr.2017.5(5).430] [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: 11/12/2022] Open
Abstract
In order to assess the quantity and quality of lipids in the Caranx rhonchus in Mauritanian
Atlantic, we carried out analytical studies (FTIR-ATR analysis and chromatographic
analysis) of lipids and fatty acids. The results revealed that the studied samples are
generally rich in lipids: 11, 39 and 31, 49%. The fatty acids of the lipids of the samples
studied are subdivided into three essential groups: polyunsaturated fatty acids,
monounsaturated fatty acids and saturated fatty acids. The results showed that the Caranx
rhonchus in Mauritanian Atlantic is very rich in monounsaturated fatty acids (oleic acid,
palmitoleic acid and vaccenic acid) in comparison with the polyunsaturated
(eicosapentaenoic acid and docosahexaenoic acid) and saturated fatty acids.
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Mohammed H. Synthesis, Identification, and Biological Study for Some Complexes of Azo Dye Having Theophylline. ScientificWorldJournal 2021; 2021:9943763. [PMID: 34335115 PMCID: PMC8321766 DOI: 10.1155/2021/9943763] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 06/19/2021] [Accepted: 07/09/2021] [Indexed: 11/29/2022] Open
Abstract
This article includes the synthesis of heterocyclic azo dye of theophylline by coupling diazonium salt of 4-chloroaniline with theophylline which is, namely, 8-(1-(4-chlorophenyl)azo)theophylline (CPAT). The complexes of cobalt and nickel were prepared by reacting their ions with CPAT ligand in ethanol under 1 : 2 ratio metal-ligand. The CPAT ligand and its complexes were characterized by elemental analysis, infrared spectrometry, electronic absorption spectroscopy, molar conductivity, and magnetic moment. The cobalt and nickel complexes show octahedral geometry having general formula [M(CPAT)2Cl2]. This article addresses the properties of CPAT dye such as photochromic properties. The CPAT dye exhibited obvious and desired changes under irradiation with visible light (405 nm), high sensitive for pH changes which refer to its ability to be analysis indicator. CPAT dye exhibited solvatochromic properties presenting red shift with polar solvent. The CPAT and its complexes show interesting antibiological activities towards Staph. aureus and E. coli bacteria and Aspergillus fungi.
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Affiliation(s)
- Hasan Mohammed
- Chemistry Department, Science College, University of Al-Qadisiyah, Al Diwaniyah, Iraq
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Brook G, Church H, Evans C, Jenkinson N, McClean H, Mohammed H, Munro H, Nambia K, Saunders J, Walton L, Sullivan A. 2019 UK National Guideline for consultations requiring sexual history taking : Clinical Effectiveness Group British Association for Sexual Health and HIV. Int J STD AIDS 2020; 31:920-938. [PMID: 32718268 DOI: 10.1177/0956462420941708] [Citation(s) in RCA: 9] [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] [Indexed: 11/17/2022]
Abstract
This guideline is an update of a previous version published in 2013. In this new version, we have reflected changes in the way sexual health services are now provided by assuming an integrated Sexual Health/Sexual and Reproductive Healthcare service. There are new recommendations for online testing, female genital mutilation (FGM), chemsex and considerations for transgender (and non-binary) individuals. Previous versions rather assumed a cis-gender clientele and so we have taken a more mechanistic approach to sex and risk without assuming gender identification. We have updated our gender terminology in line with the British Association for Sexual Health and HIV 'sexual health standards for trans, including non-binary, people' although have retained the terminology of 'men' and 'women' in a few cases where it related to other guidelines, e.g. human papillomavirus vaccination and FGM.
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Affiliation(s)
- G Brook
- GUM/HIV, Central Middlesex Hospital, London, UK
| | - H Church
- GUM, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - C Evans
- 10 Hammersmith Broadway Sexual Health Clinic, London, UK
| | | | - H McClean
- GUM/HIV, Wilberforce Health Centre, City Health Care Partnership CIC, Hull, UK
| | - H Mohammed
- HIV and STI Department, National Infection Service, Public Health England, London, UK
| | - H Munro
- CSRH Hywel Dda HB, Wales, UK
| | - K Nambia
- Sexual Health & HIV Medicine, Brighton and Sussex University Hospitals NHS Trust, Brighton, UK
| | - J Saunders
- National Chlamydia Screening Programme, Public Health England, London, UK
| | - L Walton
- The Jefferiss Wing Centre for Sexual Health and HIV, Imperial College Healthcare NHS Trust, London, UK
| | - A Sullivan
- Chelsea and Westminster NHS Foundation Trust, London, UK
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Mohammed H, Oyebode I, Oyefeso BD. Operational evaluation of Obafemi Awolowo University main gate – Ede Road intersection. Nig J Tech 2020. [DOI: 10.4314/njt.v39i2.3] [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: 11/17/2022] Open
Abstract
Vehicular traffic at Obafemi Awolowo University has increased over the years, resulting in delay at The Main Gate – Ede Road Intersection. This paper evaluated its present level of service with a view to addressing this situation. Geometric survey of the intersection was carried out. Peak hour traffic studies were conducted for a week and the traffic characteristics and volume were determined using standard procedure. The level of service (LOS) of the intersection was thereafter obtained. The geometrics of the intersection showed that, two lanes exist on the East Bound (EB) and West Bound (WB) approaches, as well as a dual lane on the North Bound (NB) and South Bound (SB) approaches. The traffic volume count was 1378, 931, 1168 and 1123 veh/h for the NB, SB, EB and WB respectively. The level of service at the intersection is B, thus implying that it exhibits a slight delay.
Keywords: Level of Service, Road intersection, Road geometry, Traffic delay
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Patini R, Staderini E, Lajolo C, Lopetuso L, Mohammed H, Rimondini L, Rocchetti V, Franceschi F, Cordaro M, Gallenzi P. Relationship between oral microbiota and periodontal disease: a systematic review. Eur Rev Med Pharmacol Sci 2019; 22:5775-5788. [PMID: 30280756 DOI: 10.26355/eurrev_201809_15903] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE In recent years metagenomic analysis has become more accessible for the characterization of biological specimens. There has been an important increase of studies using this technique for subgingival human samples. To date, there are no updated systematic reviews on the relationship between oral microbiota and periodontal disease. The aim of the present systematic review was to update data about studies concerning the influences of changes in oral microbiota composition on the periodontal status in human subjects. MATERIALS AND METHODS An electronic search was conducted in four databases (MEDLINE, Scopus, CENTRAL and Web of Science) for articles published in English from January 2014 to April 2018. In vitro or animal studies, case reports, case series, retrospective studies, review articles, abstracts and discussions were excluded. Also, studies that evaluated less than 5 microbial species, only viruses or already known periodontal pathogens were excluded. Two independent researches selected the studies and extracted the data. The quality of evidence was assessed as high, moderate or low for each microorganism. RESULTS Eight studies and three additional publications recovered from the bibliography search of the selected articles were included in the review. The Bacteria domain was the main detected among the others and it included 53 species. The review confirmed the presence of recognized periodontal pathogens such as the members of the red complex but also identified, with high weight of evidence, the presence of new pathogens. CONCLUSIONS The results of this systematic review support high evidence for the association of 3 new species/genera with the etiology of periodontitis. Future investigations on the actual role of these new pathogens in the onset and progression of the disease are needed.
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Affiliation(s)
- R Patini
- Institute of Dentistry and Maxillofacial Surgery, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Università Cattolica del Sacro Cuore.
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Adrichem ME, Bus SR, Wieske L, Mohammed H, Verhamme C, Hadden R, van Schaik IN, Eftimov F. Combined intravenous immunoglobulin and methylprednisolone as induction treatment in chronic inflammatory demyelinating polyneuropathy (OPTIC protocol): a prospective pilot study. Eur J Neurol 2019; 27:506-513. [PMID: 31571349 PMCID: PMC7028131 DOI: 10.1111/ene.14096] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [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: 05/16/2019] [Accepted: 09/27/2019] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND PURPOSE We hypothesized that combining intravenous immunoglobulin (IVIg) and intravenous methylprednisolone (IVMP) leads to more frequent remission compared with IVIg alone while maintaining the fast efficacy of IVIg. In this uncontrolled pilot study, we evaluated remission, rate of improvement and safety in patients with chronic inflammatory demyelinating polyradiculoneuropathy receiving induction treatment with combined IVIg and IVMP. METHODS Consecutive treatment-naive patients with chronic inflammatory demyelinating polyradiculoneuropathy were treated with IVIg infusions, consisting of a 2 g/kg loading dose and 1 g/kg maintenance treatment every 3 weeks, combined with 3-weekly 1-g IVMP infusions, for a total of 18 weeks. The cumulative steroid dose was 7 g. Primary outcome was remission at 1 year in patients who completed the treatment schedule. Remission was defined as improvement at 18 weeks without the need for further immune treatment between end of the treatment schedule and 1-year follow-up. Improvement was defined as a minimal clinically important difference on the Inflammatory Rasch-Built Overall Disability Scale and/or an increase of ≥8 kPa in grip strength between baseline and week 18. RESULTS A total of 20 patients were included; 17 completed the treatment schedule. A total of 13 (76%) of these patients improved at 18 weeks after start of treatment and 10 (59%) patients were in remission at 1 year. Serious adverse events were found in four patients. CONCLUSIONS Short-term combined induction treatment with IVIg and IVMP induced remission in almost 60% of patients who completed the treatment schedule. Combined induction therapy was generally well tolerated. A randomized controlled trial is currently running to confirm efficacy and safety of IVMP as add-on treatment to IVIg.
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Affiliation(s)
- M E Adrichem
- Department of Neurology, Amsterdam Neuroscience, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - S R Bus
- Department of Neurology, Amsterdam Neuroscience, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - L Wieske
- Department of Neurology, Amsterdam Neuroscience, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - H Mohammed
- Department of Neurology, Maidstone Hospital, Maidstone, Kent, UK
| | - C Verhamme
- Department of Neurology, Amsterdam Neuroscience, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - R Hadden
- Department of Neurology, Maidstone Hospital, Maidstone, Kent, UK
| | - I N van Schaik
- Department of Neurology, Amsterdam Neuroscience, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - F Eftimov
- Department of Neurology, Amsterdam Neuroscience, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
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Mohamedhussein N, Busuttil-Naudi A, Mohammed H, UlHaq A. Association of obesity with the eruption of first and second permanent molars in children: a systematic review. Eur Arch Paediatr Dent 2019; 21:13-23. [PMID: 31144286 DOI: 10.1007/s40368-019-00452-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 05/17/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Eruption timing of permanent teeth, particularly first and second molars, is of great importance due to its influence on occlusion, caries risk and timing of preventive and orthodontic intervention. AIM To evaluate the evidence assessing the correlation between obesity and eruption time of first and second permanent molars in children under 16 years of age as compared to normal-weight children. A secondary aim was to assess the total number of erupted teeth in both groups. METHODS A systematic search of databases including PubMed, MEDLINE, EMBASE, Scopus and Web of Science was conducted. Studies that assessed the effect of body mass index (BMI), adjusted BMI or z scores on dental eruption were included. National Institute of Health 'Quality Assessment Tool for Observational Cohort and Cross-sectional Studies' was used to assess the quality of included papers. A random-effects model with its 95% confidence intervals (CIs) was considered for meta-analysis. RESULTS A total of 381 papers were screened following duplicate removal. Twenty-six papers were read in full text, of which 19 were excluded. Seven studies were included in this review; one was longitudinal, and six were cross-sectional in design. A positive association of dental eruption with obesity was noted in six studies. Two studies were included in the explorative meta-analysis, the results of which indicated that obese, 12-year-olds are likely to have one more erupted tooth than their counterparts with a mean difference (MD) of (0.99, 95% CI 0.628-1.352). CONCLUSION There appears to be a positive correlation between obesity and dental eruption including the eruption timing of first and second permanent molars. Main risk of bias arises from the cross-sectional nature of included studies and lack of control of potential confounders. Further high-quality evidence is required to elucidate this association. Registration PROSPERO (CRD42017084368). REGISTRATION PROSPERO (CRD42017084368).
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Affiliation(s)
- N Mohamedhussein
- Paediatric Department, Edinburgh Dental Institute/The University of Edinburgh, Edinburgh, UK.
| | - A Busuttil-Naudi
- Paediatric Department, Edinburgh Dental Institute/The University of Edinburgh, Edinburgh, UK
| | - H Mohammed
- The University of Edinburgh, Edinburgh, UK
| | - A UlHaq
- Orthodontic Department, Edinburgh Dental Institute/The University of Edinburgh, Edinburgh, UK
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16
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Williams D, Reicher I, Mohammed H, Richardson D. Secondary adrenal insufficiency from steroid use and co-prescribing of cytochrome p450 3A4 inhibitors. HIV Med 2019; 20:e10-e11. [PMID: 30924569 DOI: 10.1111/hiv.12723] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- D Williams
- Brighton & Sussex University Hospitals NHS Trust, Brighton, UK
| | - I Reicher
- Brighton & Sussex Medical School, Brighton, UK
| | - H Mohammed
- Chelsea and Westminster NHS Trust, London, UK
| | - D Richardson
- Brighton & Sussex University Hospitals NHS Trust, Brighton, UK.,Brighton & Sussex Medical School, Brighton, UK
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17
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Mohammed H, Elufowoju E, Mgboh V, Ajibade M. Maintenance strategy in pavement performance evaluations using deflection model and site reconnaissance methods. Nig J Tech 2018. [DOI: 10.4314/njt.v37i4.1] [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: 11/17/2022] Open
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18
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Zhao H, Fuller A, Thongda W, Mohammed H, Abernathy J, Beck B, Peatman E. SNP panel development for genetic management of wild and domesticated white bass (Morone chrysops). Anim Genet 2018; 50:92-96. [PMID: 30426519 DOI: 10.1111/age.12747] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/12/2018] [Indexed: 02/03/2023]
Abstract
White bass (Morone chrysops), striped bass and their interspecific hybrid are important game fishes, whereas the hybrid striped bass is an important aquaculture species in the US. Numerous state, federal and private hatcheries, therefore, rear these species for stocking purposes as well as for food fish. Although striped bass populations (both wild and domesticated) have been extensively evaluated, relatively little effort has been directed toward the study and improvement of white bass. In this study, we developed SNP resources to examine the genetic relationships among a long-term domesticated white bass line and five potential founder stocks for selective breeding collected from drainages in Arkansas, Texas and Alabama. Using genotyping-by-sequencing, we generated 13 872 genome-wide SNP loci across the six populations. Stringent filtering of SNP-calling parameters identified 426 informative SNP loci. Population genetic and structure analyses using these loci revealed only moderate genetic differentiation between populations (global Fst = 0.083) and indicated two major genetic clusters. A final 57-SNP assay was successfully designed and validated using the MassARRAY system. The developed SNP panel assigned 96 additional genotyped individuals to their population of origin with 100% accuracy. The SNP resources developed in this study should facilitate ongoing efforts in selective breeding and conservation of white bass.
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Affiliation(s)
- H Zhao
- School of Fisheries, Aquaculture, and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - A Fuller
- United States Department of Agriculture, Agricultural Research Service, Harry K. Dupree Stuttgart National Aquaculture Research Center, Stuttgart, AR, 72160, USA
| | - W Thongda
- School of Fisheries, Aquaculture, and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - H Mohammed
- School of Fisheries, Aquaculture, and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA.,Faculty of Veterinary Medicine, Department of Aquatic Animals Medicine and Management, Assiut University, Assiut, 71526, Egypt
| | - J Abernathy
- United States Department of Agriculture, Agricultural Research Service, Harry K. Dupree Stuttgart National Aquaculture Research Center, Stuttgart, AR, 72160, USA
| | - B Beck
- United States Department of Agriculture, Agricultural Research Service, Aquatic Animal Health Research Unit, Auburn, AL, 36832, USA
| | - E Peatman
- School of Fisheries, Aquaculture, and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
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Hussein W, Mohammed H, Browne L, Plant L, Stack A. Prevalence and Correlates of Central Venous Catheter Use Among Haemodialysis Patients in the Irish Health System - A National Study. J Vasc Surg Venous Lymphat Disord 2018. [DOI: 10.1016/j.jvsv.2018.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Gayathripriya N, Alasmar N, Omar M, Khalid K, Saleh H, Mohammed H, Rajeswari K, Sumathi G. Menopause Awareness, Symptoms Assessment and Menqol Among Bahrain Women. ACTA ACUST UNITED AC 2018. [DOI: 10.18502/kls.v4i6.3091] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Abstract
OBJECTIVE This review aims to describe trigeminal neuralgia and the molecular basis contributing to the pathophysiology of this condition by focusing on the state of the art. PATIENTS AND METHODS An electronic search of PubMed was performed using the following keywords: "trigeminal neuralgia" AND "classification", "pathophysiology," "molecular basis" and "mitochondrial role." RESULTS Mitochondrial abnormality, whether functional or morphological, can contribute to neurological disorders. Additionally, one recent finding showed that gain-of-function mutation in the voltage-gated sodium channel NaV1.6 contributes to the pathophysiology of trigeminal neuralgia by increasing the excitability of trigeminal nerve ganglion neurons. It also exacerbates the pathophysiology of vascular compression. Healing of the trigeminal nerve is controlled by many molecular signaling pathways, including extracellular-signal-regulated kinase, c-Jun, p38, Notch, and mitogen-activated protein kinases. CONCLUSIONS More investigations regarding the gain-of-function mutation of NaV1.6 sodium channels are essential for the diagnosis and treatment of trigeminal nerve disorders, regardless of whether these are associated with vascular compression or not.
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Affiliation(s)
- H Mohammed
- Department of Health Sciences, Università del Piemonte Orientale UPO, Novara (NO), Italy.
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Serandour AA, Mohammed H, Miremadi A, Mulder KW, Carroll JS. TRPS1 regulates oestrogen receptor binding and histone acetylation at enhancers. Oncogene 2018; 37:5281-5291. [PMID: 29895970 PMCID: PMC6169732 DOI: 10.1038/s41388-018-0312-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 03/26/2018] [Accepted: 04/16/2018] [Indexed: 12/21/2022]
Abstract
The chromatin state is finely tuned to regulate function and specificity for transcription factors such as oestrogen receptor alpha (ER), which contributes to cell growth in breast cancer. ER transcriptional potential is mediated, in large part, by the specific associated proteins and co-factors that interact with it. Despite the identification and characterisation of several ER coregulators, a complete and systematic view of ER-regulating chromatin modifiers is lacking. By exploiting a focused siRNA screen that investigated the requirement for a library of 330 chromatin regulators in ER-mediated cell growth, we find that the NuRD and coREST histone deacetylation complexes are critical for breast cancer cell proliferation. Further, by proteomic and genomics approaches, we discover the transcription factor TRPS1 to be a key interactor of the NuRD and coREST complexes. Interestingly, TRPS1 gene amplification occurs in 28% of human breast tumours and is associated with poor prognosis. We propose that TRPS1 is required to repress spurious binding of ER, where it contributes to the removal of histone acetylation. Our data suggest that TRPS1 is an important ER-associated transcriptional repressor that regulates cell proliferation, chromatin acetylation and ER binding at the chromatin of cis-regulatory elements.
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Affiliation(s)
- A A Serandour
- Cambridge Institute, Cancer Research UK, University of Cambridge, Robinson Way, Cambridge, CB2 0RE, UK
- CRCINA, INSERM, CNRS, Université d'Angers, Université de Nantes; Ecole Centrale de Nantes, Nantes, France
| | - H Mohammed
- Cambridge Institute, Cancer Research UK, University of Cambridge, Robinson Way, Cambridge, CB2 0RE, UK
- Knight Cancer Early Detection Advanced Research Center, Oregon Health and Science University, Portland, Oregon, USA
| | - A Miremadi
- Cambridge Institute, Cancer Research UK, University of Cambridge, Robinson Way, Cambridge, CB2 0RE, UK
| | - K W Mulder
- Cambridge Institute, Cancer Research UK, University of Cambridge, Robinson Way, Cambridge, CB2 0RE, UK.
- Faculty of Science, Radboud Institute for Molecular Life Sciences, Department of Molecular Developmental Biology, Radboud University, Nijmegen, The Netherlands.
| | - J S Carroll
- Cambridge Institute, Cancer Research UK, University of Cambridge, Robinson Way, Cambridge, CB2 0RE, UK.
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23
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Gao X, Liu ZZ, Mohammed H, Braun D, Zhuge Z, Liu M, Lai EY, Jansson L, Carlström M, Patzak A, Persson AEG. Extravasal albumin concentration modulates contractile responses of renal afferent arterioles. Acta Physiol (Oxf) 2018; 222. [PMID: 28748582 DOI: 10.1111/apha.12925] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 01/17/2017] [Accepted: 07/20/2017] [Indexed: 11/30/2022]
Abstract
AIM Afferent arterioles (AA) hold a key position in the regulation of renal blood flow and glomerular filtration rate. Being the effector site of tubuloglomerular feedback, the afferent arteriole contributes to the renal handling of sodium and fluid. Dehydration goes along with increased renal interstitial protein concentration. Here, the hypothesis was tested that extravasal protein concentration directly modulates afferent arteriolar tone, a mechanism which may contribute to body fluid volume control. METHOD The effect of increased extravasal albumin concentration on the vascular reactivity was investigated in renal AA and interlobar arteries of mice, in rat renal AA and in pancreatic islet arterioles. RESULTS Albumin (2 and 4% in the bath solution) significantly potentiated the contractile response of renal afferent arterioles induced by angiotensin II and adenosine, as well as their combination, compared to the control situation (0.1% albumin). Albumin did not influence the contractility of larger renal vessels or pancreatic islet arterioles. Mimicking the increase in the osmolality induced by 4% albumin by applying mannitol to the bath solution also increased the response of renal arterioles to Ang II. However, the effect was smaller compared to that of albumin. The nitric oxide bioavailability, measured by DAF-FM fluorescence, was reduced in afferent arterioles exposed to 4% albumin. CONCLUSION The protein-induced modulation of AA tone is mediated by the increased osmolality as well as by NO scavenging. The results suggest a possible contribution of these mechanisms to the control of extracellular fluid volume via adjustment of renal blood flow and glomerular filtration rate.
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Affiliation(s)
- X. Gao
- Department of Medical Cell Biology; University of Uppsala; Uppsala Sweden
| | - Z. Z. Liu
- Institute of Vegetative Physiology; Charite-Universitätsmedizin Berlin; Berlin Germany
| | - H. Mohammed
- Institute of Vegetative Physiology; Charite-Universitätsmedizin Berlin; Berlin Germany
| | - D. Braun
- Institute of Vegetative Physiology; Charite-Universitätsmedizin Berlin; Berlin Germany
| | - Z. Zhuge
- Department of Physiology and Pharmacology; Karolinska Institutet; Stockholm Sweden
| | - M. Liu
- Department of Physiology and Pharmacology; Karolinska Institutet; Stockholm Sweden
| | - E. Y. Lai
- Department of Physiology; Zhejiang University; Hangzhou China
| | - L. Jansson
- Department of Medical Cell Biology; University of Uppsala; Uppsala Sweden
| | - M. Carlström
- Department of Physiology and Pharmacology; Karolinska Institutet; Stockholm Sweden
| | - A. Patzak
- Institute of Vegetative Physiology; Charite-Universitätsmedizin Berlin; Berlin Germany
| | - A. E. G. Persson
- Department of Medical Cell Biology; University of Uppsala; Uppsala Sweden
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Mohammed H, Coates M, Masterson L, Nassif R. Indications for transnasal flexible laryngooesophagoscopy in a head and neck clinic, our experience in one hundred and ninety-four patients. Clin Otolaryngol 2018; 43:924-928. [PMID: 29316307 DOI: 10.1111/coa.13061] [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] [Accepted: 12/22/2017] [Indexed: 11/27/2022]
Affiliation(s)
- H Mohammed
- Department of Otolaryngology-Head and Neck Surgery, Norfolk and Norwich University Hospital, Norwich, UK
| | - M Coates
- Department of Otolaryngology-Head and Neck Surgery, Norfolk and Norwich University Hospital, Norwich, UK
| | - L Masterson
- Department of Otolaryngology-Head and Neck Surgery, Norfolk and Norwich University Hospital, Norwich, UK
| | - R Nassif
- Department of Otolaryngology-Head and Neck Surgery, Norfolk and Norwich University Hospital, Norwich, UK
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Mohammed H, Rizk MZ, Wafaie K, Almuzian M. Effectiveness of nickel-titanium springs vs elastomeric chains in orthodontic space closure: A systematic review and meta-analysis. Orthod Craniofac Res 2017; 21:12-19. [PMID: 29265578 DOI: 10.1111/ocr.12210] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/19/2017] [Indexed: 11/29/2022]
Abstract
The aim of this study is to explore the effectiveness of nickel titanium closing springs (NiTi-CS) and elastomeric power chains (EPC) in orthodontic space closure and to assess the adverse periodontal effects, cost efficiency and patient-centred outcomes between both of these methods. METHODS An electronic search of online databases (Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, EMBASE, Scopus, LILACS and Web of Science), reference lists and grey literature as well as hand search were conducted without language restriction up to November/2017. Two authors blindly and in duplicate were involved in study selection, quality assessment and the extraction of data. Only randomized clinical trials (RCTs) were included. The quality of the studies was assessed using the Cochrane Collaboration's risk of bias tool. 95% confidence intervals and mean difference for continuous data were calculated. A meta-analysis that generated a random-effect model for the comparable outcomes was conducted, and heterogeneity was measured using I2 statistic. RESULTS Of 187 records, 4 RCTs met the criteria and were included in the quantitative synthesis featuring 290 test quadrants. Faster space closure with NiTi-CS was observed with a mean difference of (0.20 mm/month, 95% CI: 0.12 to 0.28). Loss of anchorage appears to be similar within both groups when synthesized qualitatively. With exception to anchorage loss, secondary outcomes could not be investigated in the included trials. CONCLUSIONS There is a moderate quality of evidence suggesting a faster orthodontic space closure with the NiTi-CS when compared to EPC. A comparable amount of anchorage loss was observed regardless of the utilized method of space closure. Further high-quality RCTs with parallel-groups, reporting on the adverse effects and patient-centred values, are recommended.
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Affiliation(s)
- H Mohammed
- Department of Orthodontics, School of Dentistry, University of Dundee, Dundee, UK
| | - M Z Rizk
- Department of Orthodontics, School of Dentistry, University of Dundee, Dundee, UK
| | - K Wafaie
- Department of Orthodontics, School of Dentistry, University of Dundee, Dundee, UK
| | - M Almuzian
- Glasgow Dental Academy, Edinburgh, UK.,Department of Orthodontics, University of Sydney, Sydney, NSW, Australia
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El-Shebly A, El Fahar M, Mohammed H, Bahaa Eldin A. Outcomes of repair of the lacerated A2 pulley with extensor retinaculum during primary flexor tendon repair. J Hand Surg Eur Vol 2017; 42:903-908. [PMID: 28604156 DOI: 10.1177/1753193417711596] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
UNLABELLED We report outcomes of repairing the lacerated A2 pulley with extensor retinaculum graft in ten patients (ten fingers) during primary flexor tendon repair in zone 2. Complete A2 pulley lacerations were found in eight fingers and partial A2 pulley laceration in two. We extended the laceration in the sheath to the middle of the A4 or A1 pulley to allow tendon repair with a four-strand core suture. The A2 pulley was reconstructed with an extensor retinaculum graft. All patients followed the early controlled active mobilization protocol and recovered active range of motion at the interphalangeal joints without major extension deficits. Using the Strickland and Glogovac criteria, there were four excellent, five good and one fair result. One finger was graded excellent, eight good, and one fair according to Tang's criteria. No clinical bowstringing was observed. We conclude that extensive pulley lacerations reconstructed with extensor retinaculum primarily ensure functional recovery after tendon repair. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- A El-Shebly
- 1 Plastic & Reconstructive Surgery Department, Mansoura University, Mansoura, Egypt
| | - M El Fahar
- 1 Plastic & Reconstructive Surgery Department, Mansoura University, Mansoura, Egypt
| | - H Mohammed
- 2 General Surgery Department, Mansoura University, Mansoura, Egypt
| | - A Bahaa Eldin
- 1 Plastic & Reconstructive Surgery Department, Mansoura University, Mansoura, Egypt
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Furegato M, Mitchell H, Ogaz D, Woodhall S, Connor N, Hughes G, Nardone A, Mohammed H. The role of frequent HIV testing in diagnosing HIV in men who have sex with men. HIV Med 2017; 19:118-122. [PMID: 28984407 DOI: 10.1111/hiv.12558] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/26/2017] [Indexed: 11/28/2022]
Abstract
OBJECTIVES In the UK, quarterly HIV testing is recommended for high-risk men who have sex with men (MSM). In this manuscript we determined the risk of being newly diagnosed with HIV in MSM by their HIV testing history, considering both the frequency and periodicity of testing. METHODS Data on HIV incidence in MSM attending a sexual health clinic (SHC) in England in 2013-2014 with testing history (previous 2 years) were obtained from GUMCAD, the national sexually transmitted infection (STI) surveillance system in England. HIV testing patterns among MSM were defined using the frequency and periodicity of testing, based on 3 month intervals, in the year preceding the first attendance during the study period. Cox proportional hazards regression was used to determine the association between HIV testing pattern and time to HIV diagnosis with and without adjustment for demographic confounders. Analyses were stratified by risk stratum, with 'high risk' defined as a history of a bacterial STI in the past year. Adjusted hazard ratios (aHRs) with 95% confidence intervals (CIs) are reported. RESULTS Among the 37 702 HIV-negative MSM attending an SHC in 2013-2014, 1105 (3%) were diagnosed with HIV infection within 1 year of their first attendance. The probability of HIV diagnosis was highest in MSM who were tested quarterly compared with those who were not tested in the past year (aHR 2.51; 95% CI 1.33-4.74); this increased 1.8-fold among high-risk MSM (aHR 4.48; 95% CI 0.97-21.17). CONCLUSIONS The probability of subsequent HIV diagnosis was greatest in high-risk MSM who were tested most frequently. Quarterly HIV testing increased the likelihood of identifying undiagnosed HIV infection and should remain a continued recommendation for high-risk MSM.
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Affiliation(s)
- M Furegato
- National Infection Service, Public Health England, London, UK
| | - H Mitchell
- National Infection Service, Public Health England, London, UK
| | - D Ogaz
- National Infection Service, Public Health England, London, UK
| | - S Woodhall
- National Infection Service, Public Health England, London, UK
| | - N Connor
- National Infection Service, Public Health England, London, UK
| | - G Hughes
- National Infection Service, Public Health England, London, UK
| | - A Nardone
- National Infection Service, Public Health England, London, UK
| | - H Mohammed
- National Infection Service, Public Health England, London, UK
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Abstract
Plant interspecific periclinal chimeras are a mosaic formed by tissues from two species. They are manipulated here as an efficient plant breeding tool for cassava root yields. In this study, plants synthesized from two chimeras, designated as chimera 2 and chimera 4, were characterized morphologically and cytologically to unravel the origin of their tissue layers (L2 and L3). Root yield of the two chimeras was also evaluated. Chimera 2 that was developed from graft union between Manihot fortalezensis (F) as scion and M. esculenta (E) as rootstock and the same in chimera 4 was developed from grafting triploid cassava cultivar (2n = 54) (C) as scion and M. pohlii (P) (2n = 36) as rootstock. A new method of inducing interspecific chimeras without using hormones was also tested in this study. Five combinations between four cassava cultivars on one side and M. fortalezensis and an interspecific hybrid (M. glaziovii x M. esculenta) on the other side were experimented to determine compatibility between the parents. Wild species always gave L2 and L3, independent of being used as rootstock or scion. L3 is responsible for producing pericycle. Thus, its performance was different in each chimera due to specific epigenetic interaction. Of 48 grafts, it was obtained one chimera giving a percentage of 2.1% that is little lower than using hormones but much efficient to use. Chimera induction efficiency in this investigation was the same when using hormones. Thus, our new, less labor, and more cost-effective technique is as much efficient as hormones and is much potential to employ as an effective plant breeding method boosting cassava root yield.
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Affiliation(s)
| | | | - D Moreti
- Empresa Matogrossense de Pesquisa, Assistência e Extensão Rural, , Brasil
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Mohammed H, Chrastek D, Masterson L, Nassif R. Coding proforma in TNFLO clinic from a UK centre, an audit of 85 procedures. Clin Otolaryngol 2017. [PMID: 28637097 DOI: 10.1111/coa.12927] [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: 11/30/2022]
Affiliation(s)
- H Mohammed
- Department of Otolaryngology-Head and Neck Surgery, Norfolk and Norwich University Hospital, Norwich, UK
| | - D Chrastek
- Department of Otolaryngology-Head and Neck Surgery, Norfolk and Norwich University Hospital, Norwich, UK
| | - L Masterson
- Department of Otolaryngology-Head and Neck Surgery, Norfolk and Norwich University Hospital, Norwich, UK
| | - R Nassif
- Department of Otolaryngology-Head and Neck Surgery, Norfolk and Norwich University Hospital, Norwich, UK
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Mohammed H, Coates M, Masterson L, Chan W, Hassan Y, Nassif R. Role of transnasal flexible laryngo-oesophagoscopy (TNFLO) in investigating patients with globus symptoms. Clin Otolaryngol 2017; 42:1311-1318. [DOI: 10.1111/coa.12872] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/14/2017] [Indexed: 12/11/2022]
Affiliation(s)
- H. Mohammed
- Department of Otolaryngology-Head and Neck Surgery; Norfolk and Norwich University Hospital; Norwich UK
| | - M. Coates
- Department of Otolaryngology-Head and Neck Surgery; Norfolk and Norwich University Hospital; Norwich UK
| | - L. Masterson
- Department of Otolaryngology-Head and Neck Surgery; Norfolk and Norwich University Hospital; Norwich UK
| | - W.Y. Chan
- Department of Otolaryngology-Head and Neck Surgery; Norfolk and Norwich University Hospital; Norwich UK
| | - Y. Hassan
- Department of Otolaryngology-Head and Neck Surgery; Norfolk and Norwich University Hospital; Norwich UK
| | - R. Nassif
- Department of Otolaryngology-Head and Neck Surgery; Norfolk and Norwich University Hospital; Norwich UK
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O’connor C, Pereboom M, Walsh A, Mohammed H, Dunning J. The risk of sustained sexual transmission of Zika virus infection in England, United Kingdom. Int J Infect Dis 2016. [DOI: 10.1016/j.ijid.2016.11.219] [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] Open
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Mohammed H, Jin X, Masterson L, Wickstead M. Ambulant management of acute tonsillitis in adult patients, a study on 330 patients. Clin Otolaryngol 2016; 42:897-901. [PMID: 27662600 DOI: 10.1111/coa.12753] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/19/2016] [Indexed: 11/29/2022]
Affiliation(s)
- H Mohammed
- Department of Otolaryngology-Head and Neck Surgery, Norfolk and Norwich University Hospital, Norwich, UK
| | - X Jin
- Department of Otolaryngology-Head and Neck Surgery, Norfolk and Norwich University Hospital, Norwich, UK
| | - L Masterson
- Department of Otolaryngology-Head and Neck Surgery, Norfolk and Norwich University Hospital, Norwich, UK
| | - M Wickstead
- Department of Otolaryngology-Head and Neck Surgery, Norfolk and Norwich University Hospital, Norwich, UK
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Moussa A, Mohammed H, Abd-Bary A, Gaber A, El-Dessouky A, Masoud, A. 875 Evaluation of tamsulosin therapy in the treatment of indwelling double–J stent related discomfort. European Urology Supplements 2016; 15:e875. [DOI: 10.1016/s1569-9056(16)60877-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Mohammed H, Masterson L, Gendy S, Nassif R. Outpatient-based injection laryngoplasty for the management of unilateral vocal fold paralysis - clinical outcomes from a UK centre. Clin Otolaryngol 2016; 41:341-6. [DOI: 10.1111/coa.12516] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/29/2015] [Indexed: 12/01/2022]
Affiliation(s)
- H. Mohammed
- Department of Otolaryngology-Head and Neck Surgery; Norfolk and Norwich University Hospital; Norwich UK
| | - L. Masterson
- Department of Otolaryngology-Head and Neck Surgery; Norfolk and Norwich University Hospital; Norwich UK
| | - S. Gendy
- Department of Otolaryngology-Head and Neck Surgery; Norfolk and Norwich University Hospital; Norwich UK
| | - R. Nassif
- Department of Otolaryngology-Head and Neck Surgery; Norfolk and Norwich University Hospital; Norwich UK
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Mohammed H, Furegato M, Nardone A, Hughes G. P17.05 Hiv test refusals among black africans attending sexually transmitted infection clinics in england, 2013. Br J Vener Dis 2015. [DOI: 10.1136/sextrans-2015-052270.583] [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: 11/03/2022]
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Malek R, Mitchell H, Furegato M, Simms I, Mohammed H, Nardone A, Hughes G. Contribution of transmission in HIV-positive men who have sex with men to evolving epidemics of sexually transmitted infections in England: an analysis using multiple data sources, 2009-2013. ACTA ACUST UNITED AC 2015; 20. [PMID: 25953130 DOI: 10.2807/1560-7917.es2015.20.15.21093] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
HIV seroadaptive behaviours may have contributed to greater sexually transmitted infection (STI) transmission in HIV-positive men who have sex with men(MSM) and to the global increase in STIs. Using multiple national surveillance data sources and population survey data, we estimated the risk of STIs in HIV-positive MSM and assessed whether transmission in HIV-positive MSM has contributed to recent STI epidemics in England. Since 2009, an increasing proportion of STIs has been diagnosed in HIV-positive MSM, and currently, the population rate of acute bacterial STIs is up to four times that of HIV-negative or undiagnosed MSM. Almost one in five of all diagnosed HIV-positive MSM in England had an acute STI diagnosed in 2013. From 2009 to 2013, the odds of being diagnosed with syphilis increased from 2.71 (95% confidence interval (CI) 2.41–3.05, p<0.001) to 4.05 (95%CI 3.70-4.45, p<0.001) in HIV-positive relative to HIV negative/undiagnosed MSM. Similar trends were seen for gonorrhoea and chlamydia. Bacterial STI re-infection rates were considerably higher in HIV-positive MSM over a five-year follow-up period, indicative of rapid transmission in more dense sexual networks.These findings strongly suggest that the sexual health of HIV-positive MSM in England is worsening, which merits augmented public health interventions and continued monitoring.
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Affiliation(s)
- R Malek
- Public Health England, London, United Kingdom
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Devic S, Mohammed H, Aldelaijan S, Tomic N, Seuntjens J, DeBlois F, Lehnert S, Faria S. PO-0773: FDG based glycolytic biological target volume: Warburg effect vs. hypoxia. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)40765-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Eccleston D, Cehic D, Mohammed H, Cross D. Genesis of clinical quality activities within a national echocardiography database: observations from the Heartcare group registry. Heart Lung Circ 2015. [DOI: 10.1016/j.hlc.2015.06.539] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Savage EJ, Mohammed H, Leong G, Duffell S, Hughes G. Improving surveillance of sexually transmitted infections using mandatory electronic clinical reporting: the genitourinary medicine clinic activity dataset, England, 2009 to 2013. ACTA ACUST UNITED AC 2014; 19:20981. [PMID: 25496573 DOI: 10.2807/1560-7917.es2014.19.48.20981] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A new electronic surveillance system for sexually transmitted infections (STIs) was introduced in England in 2009. The genitourinary medicine clinic activity dataset (GUMCAD) is a mandatory, disaggregated, pseudo-anonymised data return submitted by all STI clinics across England. The dataset includes information on all STI diagnoses made and services provided alongside demographic characteristics for every patient attendance at a clinic. The new system enables the timely analysis and publication of routine STI data, detailed analyses of risk groups and longitudinal analyses of clinic attendees. The system offers flexibility so new codes can be introduced to help monitor outbreaks or unusual STI activity. From January 2009 to December 2013 inclusive, over twenty-five million records from a total of 6,668,648 patients of STI clinics have been submitted. This article describes the successful implementation of this new surveillance system and the types of epidemiological outputs and analyses that GUMCAD enables. The challenges faced are discussed and forthcoming developments in STI surveillance in England are described.
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Affiliation(s)
- E J Savage
- HIV/STI department, Centre for Infectious Disease Surveillance and Control, Public Health England, London, United Kingdom
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Pandey AD, Mohammed H, Pissurlenkar RRS, Karnik AV. Size-Induced Chiral Discrimination Switching by (S)-(−)-2(α-Hydroxyethyl)Benzimidazole-Derived Azacrowns. Chempluschem 2014; 80:475-479. [DOI: 10.1002/cplu.201402141] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2014] [Revised: 10/02/2014] [Indexed: 11/07/2022]
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Yassine O, Gooneratne CP, Abu Smara D, Li F, Mohammed H, Merzaban J, Kosel J. Isolation of cells for selective treatment and analysis using a magnetic microfluidic chip. Biomicrofluidics 2014; 8:034114. [PMID: 25379074 PMCID: PMC4162427 DOI: 10.1063/1.4883855] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Accepted: 06/05/2014] [Indexed: 05/15/2023]
Abstract
This study describes the development and testing of a magnetic microfluidic chip (MMC) for trapping and isolating cells tagged with superparamagnetic beads (SPBs) in a microfluidic environment for selective treatment and analysis. The trapping and isolation are done in two separate steps; first, the trapping of the tagged cells in a main channel is achieved by soft ferromagnetic disks and second, the transportation of the cells into side chambers for isolation is executed by tapered conductive paths made of Gold (Au). Numerical simulations were performed to analyze the magnetic flux and force distributions of the disks and conducting paths, for trapping and transporting SPBs. The MMC was fabricated using standard microfabrication processes. Experiments were performed with E. coli (K12 strand) tagged with 2.8 μm SPBs. The results showed that E. coli can be separated from a sample solution by trapping them at the disk sites, and then isolated into chambers by transporting them along the tapered conducting paths. Once the E. coli was trapped inside the side chambers, two selective treatments were performed. In one chamber, a solution with minimal nutrition content was added and, in another chamber, a solution with essential nutrition was added. The results showed that the growth of bacteria cultured in the second chamber containing nutrient was significantly higher, demonstrating that the E. coli was not affected by the magnetically driven transportation and the feasibility of performing different treatments on selectively isolated cells on a single microfluidic platform.
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Affiliation(s)
- O Yassine
- Computer, Electrical and Mathematical Sciences & Engineering division, 4700 King Abdullah University of Science and Technology , Thuwal, Makkah 23955, Kingdom of Saudi Arabia
| | - C P Gooneratne
- Computer, Electrical and Mathematical Sciences & Engineering division, 4700 King Abdullah University of Science and Technology , Thuwal, Makkah 23955, Kingdom of Saudi Arabia
| | - D Abu Smara
- Biological and Environmental Sciences & Engineering division, 4700 King Abdullah University of Science and Technology , Thuwal, Makkah 23955, Kingdom of Saudi Arabia
| | - F Li
- Computer, Electrical and Mathematical Sciences & Engineering division, 4700 King Abdullah University of Science and Technology , Thuwal, Makkah 23955, Kingdom of Saudi Arabia
| | - H Mohammed
- Computer, Electrical and Mathematical Sciences & Engineering division, 4700 King Abdullah University of Science and Technology , Thuwal, Makkah 23955, Kingdom of Saudi Arabia
| | - J Merzaban
- Biological and Environmental Sciences & Engineering division, 4700 King Abdullah University of Science and Technology , Thuwal, Makkah 23955, Kingdom of Saudi Arabia
| | - J Kosel
- Computer, Electrical and Mathematical Sciences & Engineering division, 4700 King Abdullah University of Science and Technology , Thuwal, Makkah 23955, Kingdom of Saudi Arabia
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Mohammed H, Obi C, Bignell C, Dean G, Hay P, Robinson A, Ross JDC, Chisholm S, Ison C, Hughes G. P3.284 Factors Associated with Variations in Culture Confirmation For Neisseria Gonorrhoea: A Study of Patients Attending Five Genitourinary Medicine Clinics in England. Br J Vener Dis 2013. [DOI: 10.1136/sextrans-2013-051184.0740] [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: 11/03/2022]
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Maharaj R, Alexander C, Bridglal CH, Edwards A, Mohammed H, Rampaul T, Sanchez S, Tanwing G, Thomas K. Somatoform disorders among patients attending walk-in clinics in Trinidad: prevalence and association with depression and anxiety. Ment Health Fam Med 2013; 10:81-88. [PMID: 24427174 PMCID: PMC3822639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/31/2013] [Accepted: 06/20/2013] [Indexed: 06/03/2023]
Abstract
Objectives Somatoform disorders are common in international primary care settings, but have been little studied in the developing world. The objective of this study was to determine the prevalence of severe undifferentiated somatoform disorder, and its relationship to depression and anxiety, among patients attending walk-in clinics in Trinidad. Methods The study participants, who were all aged 18 years or older and attending walk-in clinics at 16 randomly selected health centres, were surveyed between May and August 2007 using the PRIME-MD questionnaire. Results There were 594 participants (the response rate was 92%), of whom 72.7% were female. Their ages ranged from 18 to 93 years, and 54.5% were over 50 years of age. In total, 37.2% were married and 25.9% were single. Indo-Trinidadians represented 43.1% and Afro-Trinidadians represented 36% of the study sample; 56.5% of the participants reported that their income was less than US$ 400 per month, and 65.7% were unemployed. At walk-in clinics in Trinidad, the estimated prevalence of severe undifferentiated somatoform disorder was 10.3% (95% CI: 7.86-12.74), that of hypochondriasis was 28.5% (95% CI: 24.9-32.1), and that of body dysmorphic disorder was 15.8% (95% CI: 11.9-18.7). Severe undifferentiated somatoform disorder was statistically significantly associated with gender and ethnicity but not with age, level of education, employment status or income. Chi-square testing found significant associations between the presence of severe undifferentiated somatoform disorder and both depression and anxiety (P < 0.05), between hypochondriasis and both anxiety and depression (P < 0.05), and between body dysmorphic disorder and depression (P < 0.05) but not anxiety. Regression analysis suggested that the demographic features that predicted severe undifferentiated somatoform disorder were being female or Indo-Trinidadian. Conclusions Walk-in clinics in Trinidad that serve older patients on a lower income have a high proportion of patients with somatoform disorders as measured by the PRIME-MD scale. These patients exhibit many features of anxiety and depression. These findings have implications for medical training and service delivery.
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Affiliation(s)
- Rg Maharaj
- Senior Lecturer, Unit of Public Health and Primary Care, Faculty of Medical Sciences, The University of the West Indies, St Augustine, Trinidad
| | | | | | - A Edwards
- House Officers, Trinidad healthcare system
| | - H Mohammed
- House Officers, Trinidad healthcare system
| | - Ta Rampaul
- House Officers, Trinidad healthcare system
| | - S Sanchez
- House Officers, Trinidad healthcare system
| | - Gp Tanwing
- House Officers, Trinidad healthcare system
| | - K Thomas
- House Officers, Trinidad healthcare system
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Bullard SA, Mohammed H, Arias CR. First record of the fish pathogen Flavobacterium columnare genomovar II from bluegill, Lepomis macrochirus (Rafinesque), with observations on associated lesions. J Fish Dis 2013; 36:447-451. [PMID: 23126340 DOI: 10.1111/jfd.12005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Revised: 07/31/2012] [Accepted: 08/08/2012] [Indexed: 06/01/2023]
Affiliation(s)
- S A Bullard
- Department of Fisheries and Allied Aquacultures, Auburn University, Auburn, Alabama 36849, USA.
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Dinoko TS, Orce JN, Sharpey-Schafer JF, Wiedeking M, Bark RA, Bvumbi SP, Jones P, Khaleel EAMA, Lawrie EA, Lawrie JJ, Majola SNT, Masiteng PL, Mohammed H, Ntshangase SS, Papka P, Shirinda O, Stankiewicz M, Zhou EN. Spin-parity assignments and extension of the 0 2+band in 158Er. EPJ Web of Conferences 2013. [DOI: 10.1051/epjconf/20136301005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Tramm T, Mohammed H, Myhre S, Alsner J, Børresen-Dale AL, Sørlie T, Frigessi A, Overgaard J. Abstract P3-04-03: A seven-gene profile predicting benefit of postmastectomy radiotherapy independently of nodal status in high risk breast cancer. Cancer Res 2012. [DOI: 10.1158/0008-5472.sabcs12-p3-04-03] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Recommendations for postmastectomy radiotherapy (PMRT) are well established in patients estimated to have a high risk of loco-regional recurrence (LR) (e.g. tumor size > 5 cm or ≥ 4 positive lymph nodes). International recommendations for patients with 1–3 positive lymph nodes suggest that PMRT should be restricted to younger patients and patients with other poor prognostic features. However, large randomized trials, including the DBCG82 trials (Danish Breast Cancer Cooperative Group), have previously shown a substantial overall survival benefit after PMRT in patients with low risk of LR, and shown that the largest translation of LR reduction into breast cancer mortality reduction occurs within the most favorable prognosis group. Our hypothesis is that a more refined partitioning of patients likely to benefit from PMRT can be established through identification of genes whose transcription interacts with PMRT to modify the hazard of LR.
Material and methods: The DBCG82bc cohort constitutes high risk patients (tumor size > 5 cm and/or positive nodes and/or invasion in skin or pectoral fascia) diagnosed between 1983–89, treated with mastectomy and partial axillary lymph nodes dissection and randomized to +/− PMRT. From 267 DBCG82bc patients, frozen tumor samples were available. Whole genome arrays (Applied Biosystem Human Genome Survey Microarray v2.0®, Applied Biosystem, Foster City, USA) were successful in 195 samples. Genes, whose expression levels interacted with PMRT on the association with LR, were identified through a two step Cox Proportional Hazard model with lasso penalty. 11 node negative patients were excluded from the subsequent analysis of 184 node positive patients (1–3 pos. nodes: 102 pts, ≥ 4 pos. nodes: 82 pts).
Results: Seven genes were identified whose expression interact with the effect of PMRT, and a specialized index was generated based on the expression levels of these genes. Patients were ranked according to the size of the index, and divided into quartiles with 25% of the patients designated as having a “high index” and 75% a “low index”. Among patients not receiving PMRT, a low index was in both nodal groups (1–3 vs. ≥ 4 positive nodes) associated with a significantly higher risk of LR compared to patients with a high index. In both nodal groups, PMRT significantly reduced the risk of LR in patients with a low index; equalizing the risk to patients with a high index, who showed no additional LR reduction by PMRT. In the group of 1–3 positive nodes, PMRT raised the local control rate (LCR) after 10 years from 47.5 % to 91.8% in the low index group (p = 0.0001), whereas the change in the high index group was non-significant (92.3% vs. 100.0%). In the group of patients with ≥ 4 positive nodes, PMRT raised LCR from 16.6% to 80.0% in the low index group (p = 0.0001), and no effect on LCR was seen in the high index group (83.3% vs. 87.5%, n.s.).
Conclusion: A seven gene-profile attaining prognostic and predictive impact, irrespective of number of positive nodes, was identified. The profile allowed the identification of 25% of the patients not showing any additional benefit from PMRT in terms of LR. The gene-profile may provide a method to identify patients expected to benefit from PMRT.
Citation Information: Cancer Res 2012;72(24 Suppl):Abstract nr P3-04-03.
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Affiliation(s)
- T Tramm
- Aarhus University Hospital, Aarhus, Denmark; Oslo University Hospital, Radiumhospitalet, Oslo, Norway; University Oslo, Norway
| | - H Mohammed
- Aarhus University Hospital, Aarhus, Denmark; Oslo University Hospital, Radiumhospitalet, Oslo, Norway; University Oslo, Norway
| | - S Myhre
- Aarhus University Hospital, Aarhus, Denmark; Oslo University Hospital, Radiumhospitalet, Oslo, Norway; University Oslo, Norway
| | - J Alsner
- Aarhus University Hospital, Aarhus, Denmark; Oslo University Hospital, Radiumhospitalet, Oslo, Norway; University Oslo, Norway
| | - A-L Børresen-Dale
- Aarhus University Hospital, Aarhus, Denmark; Oslo University Hospital, Radiumhospitalet, Oslo, Norway; University Oslo, Norway
| | - T Sørlie
- Aarhus University Hospital, Aarhus, Denmark; Oslo University Hospital, Radiumhospitalet, Oslo, Norway; University Oslo, Norway
| | - A Frigessi
- Aarhus University Hospital, Aarhus, Denmark; Oslo University Hospital, Radiumhospitalet, Oslo, Norway; University Oslo, Norway
| | - J Overgaard
- Aarhus University Hospital, Aarhus, Denmark; Oslo University Hospital, Radiumhospitalet, Oslo, Norway; University Oslo, Norway
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Mohammed H, Ameh C. W393 NATIONAL FACILITY BASED MATERNAL DEATH REVIEW: THE KENYAN EXPERIENCE. Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)62115-8] [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: 10/27/2022]
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Mohammed H, Vuvor F. Prevalence of childhood overweight/obesity in basic school in Accra. Ghana Med J 2012; 46:124-127. [PMID: 23661824 PMCID: PMC3645158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023] Open
Abstract
BACKGROUND This study intends to determine the prevalence of obesity among children in the University Primary School, Legon. It also intends to determine relationship between the prevalence of obesity in children and socio-economic status of their parents and the most endemic age group. METHOD The study was conducted using 270 students sampled at random in the basic school. Children's height, weight and skin fold measurement were taken. Children's parent's socio-economic status was assessed using close and open-ended questionnaires administered to parents. Data obtained was then analyzed using SPSS software. RESULTS Prevalence of obesity in the university primary school was found to be 10.9% with higher prevalence in girls (15.0%) than in boys (7.2%) (P-value=0.001). There was higher prevalence among children from high socioeconomic background (21 - 23%) with least prevalence in those from low socio-economic homes (10 - 20%) though this was not significant (p-value=0.23). Girls showed a higher body fat composition between 10 - 12years, whiles boys showed higher body fat stores between 8 - 10 years old. Increasing mother educational level reduced prevalence of child obesity (p-value=0.043) but this was not seen in increasing fathers' educational level (p-value=0.261). CONCLUSIONS The prevalence of obesity in children in University primary school was very high and worrying. The prevalence increased with socio-economic status and it is more common in females than males. It was recommended that similar study should be expanded nationwide.
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Affiliation(s)
- H Mohammed
- Nutrition and Food Science Department, University of Ghana, Legon, Ghana.
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Al Obaidi L, Alansari N, Yaseen N, Mohammed H, Tobal K. 550 p53 Mutations Are Common in Iraqi Children With Medulloblastomas and Ependymomas – Indication of a Different Disease Etiology and Prognosis. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)71209-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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