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Ruiz MG, Castro A, Herranz J, da Silva A, John P, Trampert A, Brandt O, Geelhaar L, Lähnemann J. Composition and optical properties of (In, Ga)As nanowires grown by group-III-assisted molecular beam epitaxy. Nanotechnology 2024; 35:265702. [PMID: 38527360 DOI: 10.1088/1361-6528/ad375b] [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] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 03/24/2024] [Indexed: 03/27/2024]
Abstract
(In, Ga) alloy droplets are used to catalyse the growth of (In, Ga)As nanowires by molecular beam epitaxy on Si(111) substrates. The composition, morphology and optical properties of these nanowires can be tuned by the employed elemental fluxes. To incorporate more than 10% of In, a high In/(In+Ga) flux ratio above 0.7 is required. We report a maximum In content of almost 30% in bulk (In, Ga)As nanowires for an In/(In+Ga) flux ratio of 0.8. However, with increasing In/(In+Ga) flux ratio, the nanowire length and diameter are notably reduced. Using photoluminescence and cathodoluminescence spectroscopy on nanowires covered by a passivating (In, Al)As shell, two luminescence bands are observed. A significant segment of the nanowires shows homogeneous emission, with a wavelength corresponding to the In content in this segment, while the consumption of the catalyst droplet leads to a spectrally-shifted emission band at the top of the nanowires. The (In,Ga)As nanowires studied in this work provide a new approach for the integration of infrared emitters on Si platforms.
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Affiliation(s)
- M Gómez Ruiz
- Paul-Drude-Institut für Festkörperelektronik, Leibniz-Institut im Forschungsverbund Berlin e.V., Hausvogteiplatz 5-7, D-10117 Berlin, Germany
| | - A Castro
- Paul-Drude-Institut für Festkörperelektronik, Leibniz-Institut im Forschungsverbund Berlin e.V., Hausvogteiplatz 5-7, D-10117 Berlin, Germany
| | - J Herranz
- Paul-Drude-Institut für Festkörperelektronik, Leibniz-Institut im Forschungsverbund Berlin e.V., Hausvogteiplatz 5-7, D-10117 Berlin, Germany
| | - A da Silva
- Paul-Drude-Institut für Festkörperelektronik, Leibniz-Institut im Forschungsverbund Berlin e.V., Hausvogteiplatz 5-7, D-10117 Berlin, Germany
| | - P John
- Paul-Drude-Institut für Festkörperelektronik, Leibniz-Institut im Forschungsverbund Berlin e.V., Hausvogteiplatz 5-7, D-10117 Berlin, Germany
| | - A Trampert
- Paul-Drude-Institut für Festkörperelektronik, Leibniz-Institut im Forschungsverbund Berlin e.V., Hausvogteiplatz 5-7, D-10117 Berlin, Germany
| | - O Brandt
- Paul-Drude-Institut für Festkörperelektronik, Leibniz-Institut im Forschungsverbund Berlin e.V., Hausvogteiplatz 5-7, D-10117 Berlin, Germany
| | - L Geelhaar
- Paul-Drude-Institut für Festkörperelektronik, Leibniz-Institut im Forschungsverbund Berlin e.V., Hausvogteiplatz 5-7, D-10117 Berlin, Germany
| | - J Lähnemann
- Paul-Drude-Institut für Festkörperelektronik, Leibniz-Institut im Forschungsverbund Berlin e.V., Hausvogteiplatz 5-7, D-10117 Berlin, Germany
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John P, Sudandiradoss C. A comprehensive integrated gene network construction to explore the essential role of Notch 1 in lung adenocarcinoma (LUAD). J Biomol Struct Dyn 2024:1-13. [PMID: 38282473 DOI: 10.1080/07391102.2024.2306501] [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: 08/16/2023] [Accepted: 01/10/2024] [Indexed: 01/30/2024]
Abstract
The heterogeneous biological landscape of non-small cell lung cancer (NSCLC) is largely attributed to the activation of Notch signalling pathway. Among the Notch family transmembrane proteins, neurogenic locus notch homolog protein1 (NOTCH1) is a putative oncogene in NSCLC which activates the pathway as negative prognostic factor. This study aims to explore integrated network approach in lung adenocarcinoma (LUAD) especially linked to the notch pathway and its receptors. Our gene set enrichment analysis reveals the key Notch pathway genes are predominantly down regulated in LUAD. There were 675 genes with a total of 6517 functional interactions and 6 densely connected clusters of 38 miRNAs, 84 transcription factors with 156 edges identified through network construction. Here we report five key genes namely NOTCH1, CDH1, ERBB2, GAPDH and COL1A1 significantly enriched in Notch pathway which are further validated through the KM plot, box plots, stage plots and TIMER analysis. In addition, the NOTCH1 receptor is strongly linked to the immune checkpoint inhibitor CD274 (PD-L1) and can be considered as prognostic marker and tumour suppressor gene in LUAD which surely provide the basis for early diagnosis and futuristic immunotherapeutic targets for LUAD.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Pearl John
- Department of Biotechnology, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - C Sudandiradoss
- Department of Biotechnology, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
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John P, Gómez Ruiz M, van Deurzen L, Lähnemann J, Trampert A, Geelhaar L, Brandt O, Auzelle T. Growth kinetics and substrate stability during high-temperature molecular beam epitaxy of AlN nanowires. Nanotechnology 2023; 34. [PMID: 37579739 DOI: 10.1088/1361-6528/acefd8] [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] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 08/13/2023] [Indexed: 08/16/2023]
Abstract
We study the molecular beam epitaxy of AlN nanowires between 950 °C and 1215 °C, well above the usual growth temperatures, to identify optimal growth conditions. The nanowires are grown by self-assembly on TiN(111) films sputtered onto Al2O3. Above 1100 °C, the TiN film is seen to undergo grain growth and its surface exhibits {111} facets where AlN nucleation preferentially occurs. Modeling of the nanowire elongation rate measured at different temperatures shows that the Al adatom diffusion length maximizes at 1150 °C, which appears to be the optimum growth temperature. However, analysis of the nanowire luminescence shows a steep increase in the deep-level signal already above 1050 °C, associated with O incorporation from the Al2O3substrate. Comparison with AlN nanowires grown on Si, MgO and SiC substrates suggests that heavy doping of Si and O by interdiffusion from the TiN/substrate interface increases the nanowire internal quantum efficiency, presumably due to the formation of a SiNxor AlOxpassivation shell. The outdiffusion of Si and O would also cause the formation of the inversion domains observed in the nanowires. It follows that for optoelectronic and piezoelectric applications, optimal AlN nanowire ensembles should be prepared at 1150 °C on TiN/SiC substrates and will require anex situsurface passivation.
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Affiliation(s)
- P John
- Paul-Drude-Institut für Festkörperelektronik, Leibniz-Institut im Forschungsverbund Berlin e.V., Hausvogteiplatz 5-7, D-10117 Berlin, Germany
| | - M Gómez Ruiz
- Paul-Drude-Institut für Festkörperelektronik, Leibniz-Institut im Forschungsverbund Berlin e.V., Hausvogteiplatz 5-7, D-10117 Berlin, Germany
| | - L van Deurzen
- School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853, United States of America
| | - J Lähnemann
- Paul-Drude-Institut für Festkörperelektronik, Leibniz-Institut im Forschungsverbund Berlin e.V., Hausvogteiplatz 5-7, D-10117 Berlin, Germany
| | - A Trampert
- Paul-Drude-Institut für Festkörperelektronik, Leibniz-Institut im Forschungsverbund Berlin e.V., Hausvogteiplatz 5-7, D-10117 Berlin, Germany
| | - L Geelhaar
- Paul-Drude-Institut für Festkörperelektronik, Leibniz-Institut im Forschungsverbund Berlin e.V., Hausvogteiplatz 5-7, D-10117 Berlin, Germany
| | - O Brandt
- Paul-Drude-Institut für Festkörperelektronik, Leibniz-Institut im Forschungsverbund Berlin e.V., Hausvogteiplatz 5-7, D-10117 Berlin, Germany
| | - T Auzelle
- Paul-Drude-Institut für Festkörperelektronik, Leibniz-Institut im Forschungsverbund Berlin e.V., Hausvogteiplatz 5-7, D-10117 Berlin, Germany
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Kumar S, Shah U, Ravipati S, Rahulan V, Kamath A, Kumar P, Panda S, Kori S, John P, Nagaraju M, Arora S, Dutta P, Attawar S. Airway Complications After Lung Transplant for Post Coronaviral Disease (COVID-19) Acute Respiratory Distress Syndrome (ARDS) Related End Stage Lung Disease: Single Centre Experience. J Heart Lung Transplant 2022. [PMCID: PMC8988571 DOI: 10.1016/j.healun.2022.01.311] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Purpose Severe COVID-19 ARDS related end stage lung fibrosis with irreversible changes is a newer indication for lung transplantation with acceptable survival rate. Airway complication post lung transplant is a major source of morbidity and mortality with incidence as high as 25 to 49 percent. Patients with end stage COVID-19 fibrosis are likely to be clinically deconditioned with long duration of extracorporeal oxygenator (ECMO) support, high burden of sepsis and prolonged respiratory support which may affect the airways post lung transplantation. Methods This is a retrospective observational study after obtaining institutional ethical clearance. We reviewed electronic medical data of patients who underwent lung transplantation for post COVID-19 ARDS related fibrosis. We evaluated the incidence and type of airway complications and the various therapeutic interventions applied for its management. Results Between May 2020 and September 2021 our centre performed 23 bilateral lung transplants for end stage COVID-19 ARDS related fibrosis. 22 patients were on ECMO support with mean duration of 50.9 days before transplantation. All patients underwent lung transplantation with central Veno-Arterial ECMO support with mean organ ischaemia time of 360±154 minutes. The incidence of airway complication in our study group was 56%. We observed anastomotic narrowing in 3(13%), distal airway narrowing in 4(17%) and sloughing/coating of anastomotic site in 5(22%) patients. Nonspecific inflammatory polypi around the bronchial anastomotic site were noticed in 4(17%) and mild airway anastomotic dehiscence in 2 subjects. 8(34%) patients required serial bronchoscopy and balloon dilatation; 2 among them mandated additional cautery usage. 2 cases underwent polypectomy, further 4 subjects needed bronchial stent placement. 5 (21%) recipients were discharged with Tracheostomy while rest were successfully decannulated in the ward. Conclusion We observed a high incidence of airway complications in post lung transplant for COVID-19 ARDS related fibrosis. Early detection, timely management and serial follow up is of paramount importance in this subset of patients.
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Mani J, Kloft J, Jones J, John P, Khoder W, Mahmud W, Vallo S. [Awareness of clinical relevance of malignant testicular cancer among university students : The value of prevention campaigns]. Urologe A 2019; 58:790-794. [PMID: 31028422 DOI: 10.1007/s00120-019-0936-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
BACKGROUND Early detection of localized testicular cancer is associated with a significantly better prognosis compared to advanced tumor stages. Testicular cancer prevention campaigns like "Hodencheck.de" launched by the German Society of Urology or the international campaign "Movember Foundation" want to inform and raise awareness about testicular cancer and other male cancers. This study aimed to evaluate to which extent public prevention campaigns may influence the behavior of young men and women in Germany. OBJECTIVES Questionnaires were used to ask students at the University of Frankfurt, Germany, whether they are familiar with the currently most widespread testicular cancer prevention campaigns and whether testicular examinations for cancer screening were performed by themselves, a partner or a physician. RESULTS Only a minority of the students were aware of the testicular cancer prevention campaigns "Hodencheck.de" and/or "Movember Foundation"; 79.9% of the male and 83.6% of female students had not heard of the two mentioned prevention campaigns. Significantly more male (35.2%) compared to female students (28.9%) knew that testicular cancer is the most common cancer in young men. Of the men, 48.9% had already palpated their testicles, while only 12.4% of the women had already palpated the partner's testicles for cancer screening. Students knowing about the testicular cancer prevention campaigns performed significantly more testicular examinations for screening purposes. CONCLUSIONS Our study demonstrates that current testicular cancer prevention campaigns are little known amongst German university students. However, the knowledge of testicular cancer prevention campaigns resulted in an increased awareness and an increased willingness for testicular (self-) examinations.
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Affiliation(s)
- J Mani
- , Frankfurt am Main, Deutschland
| | - J Kloft
- Universität Frankfurt, Frankfurt am Main, Deutschland
| | - J Jones
- Klinik für Urologie, Hochtaunus-Kliniken, Zeppelinstraße 20, 61352, Bad Homburg vor der Höhe, Deutschland
| | - P John
- Klinik für Urologie, Universitätsklinikum Köln, Köln, Deutschland
| | - W Khoder
- Klinik für Urologie, Universitätsklinikum Freiburg, Freiburg, Deutschland
| | - W Mahmud
- Klinik für Urologie, Hochtaunus-Kliniken, Zeppelinstraße 20, 61352, Bad Homburg vor der Höhe, Deutschland
| | - S Vallo
- Klinik für Urologie, Hochtaunus-Kliniken, Zeppelinstraße 20, 61352, Bad Homburg vor der Höhe, Deutschland.
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Mukherjee A, Chacon M, Mendez N, Shahnawaz M, Soto C, John P, Kathrine G. Amyloid oligomers prevent protein folding. FASEB J 2018. [DOI: 10.1096/fasebj.2018.32.1_supplement.793.14] [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: 11/11/2022]
Affiliation(s)
- Abhisek Mukherjee
- NeurologyMitchell Center for Alzheimer's Disease and Related Brain Disorders
| | - Marcelo Chacon
- NeurologyMitchell Center for Alzheimer's Disease and Related Brain Disorders
| | - Nicolas Mendez
- NeurologyMitchell Center for Alzheimer's Disease and Related Brain Disorders
| | - Mohammad Shahnawaz
- NeurologyMitchell Center for Alzheimer's Disease and Related Brain Disorders
| | - Claudio Soto
- NeurologyMitchell Center for Alzheimer's Disease and Related Brain Disorders
| | - P John
- McGovern Medical SchoolUniversity of Texas Medical SchoolHoustonTX
| | - G Kathrine
- McGovern Medical SchoolUniversity of Texas Medical SchoolHoustonTX
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Griffith L, Gilsing A, van den Heuvel E, Nazmul S, John P, Raina P. MULTIPLE CHRONIC CONDITIONS IN RELATION TO DISABILITY AND SOCIAL PARTICIPATION: DATA FROM THE CLSA. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.2642] [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: 11/13/2022] Open
Affiliation(s)
- L. Griffith
- McMaster University, Hamilton, Ontario, Canada,
| | - A. Gilsing
- McMaster University, Hamilton, Ontario, Canada,
| | | | - S. Nazmul
- McMaster University, Hamilton, Ontario, Canada,
| | - P. John
- University of Manitoba, Winnipeg, Manitoba, Canada
| | - P. Raina
- McMaster University, Hamilton, Ontario, Canada,
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Kulanthayan S, Karmegam K, John P, Puspa W, Amin I, Ramesh A, Anita A. 938 A journey from pedestrian safety intervention to first international safe school initiative attempt. Inj Prev 2016. [DOI: 10.1136/injuryprev-2016-042156.938] [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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Zia A, Wang X, Bhatti A, Demirci FY, Zhao W, Rasheed A, Samuel M, Kiani AK, Ismail M, Zafar J, John P, Saleheen D, Kamboh MI. A replication study of 49 Type 2 diabetes risk variants in a Punjabi Pakistani population. Diabet Med 2016; 33:1112-7. [PMID: 26499911 DOI: 10.1111/dme.13012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 08/03/2015] [Accepted: 10/21/2015] [Indexed: 12/28/2022]
Abstract
AIM The burden of Type 2 diabetes is alarmingly high in South Asia, a region that has many genetically diverse ethnic populations. Genome-wide association studies (GWAS) conducted largely in European populations have identified a number of loci predisposing to Type 2 diabetes risk, however, the relevance of such genetic loci in many South Asian sub-ethnicities remains elusive. The aim of this study was to replicate 49 single nucleotide polymorphisms (SNPs) previously identified through GWAS in Punjabis living in Pakistan. METHODS We examined the association of 49 SNPs in 853 Type 2 diabetes cases and 1945 controls using additive logistic regression models after adjusting for age and gender. RESULTS Of the 49 SNPs investigated, eight showed a nominal association (P < 0.05) that also remained significant after controlling for the false discovery rate. The most significant association was found for rs7903146 at the TCF7L2 locus. For a per unit increase in the risk score comprising of all the 49 SNPs, the odds ratio in association with Type 2 diabetes risk was 1.16 (95% CI 1.13-1.19, P < 2.0E-16). CONCLUSION These results suggest that some Type 2 diabetes susceptibility loci are shared between Europeans and Punjabis living in Pakistan.
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Affiliation(s)
- A Zia
- Atta-Ur-Rahman School of Applied Biosciences (ASAB), National University of Science and Technology (NUST), Islamabad, Pakistan
| | - X Wang
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, USA
| | - A Bhatti
- Atta-Ur-Rahman School of Applied Biosciences (ASAB), National University of Science and Technology (NUST), Islamabad, Pakistan
| | - F Y Demirci
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, USA
| | - W Zhao
- Institute of Translational Medicine and Human Genetics, Department of Medicine, University of Pennsylvania, Philadelphia, USA
| | - A Rasheed
- Center for Non-Communicable Diseases, Karachi, Pakistan
| | - M Samuel
- Center for Non-Communicable Diseases, Karachi, Pakistan
| | - A K Kiani
- Atta-Ur-Rahman School of Applied Biosciences (ASAB), National University of Science and Technology (NUST), Islamabad, Pakistan
| | - M Ismail
- Institute of Biomedical and Genetic Engineering (IBGE), Islamabad, Pakistan
| | - J Zafar
- Pakistan Institute of Medical Sciences (PIMS), Islamabad, Pakistan
| | - P John
- Atta-Ur-Rahman School of Applied Biosciences (ASAB), National University of Science and Technology (NUST), Islamabad, Pakistan
| | - D Saleheen
- Institute of Translational Medicine and Human Genetics, Department of Medicine, University of Pennsylvania, Philadelphia, USA
- Department of Biostatistics and Epidemiology, University of Pennsylvania, Philadelphia, USA
| | - M I Kamboh
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, USA
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Abstract
Local economic development policy networks in four cities in Britain and France (Leeds, Southampton, Lille, and Rennes) are compared by means of the technique of sociometric network analysis. The author's objective was to find out if, in an age of internationalisation and urban competition, networks still conform to the structure suggested by the classic Franco-British comparative studies, or whether they resemble the more open and interorganisational pattern characteristic of the new urban governance. After setting out the methods and the sociometric approach, the author identifies actors who have the ten highest centrality scores in the four cities, The author concludes that, in spite of continuing contrasts in the national institutional structures and differences in the politics and cultures of the four cities, there is a surprising similarity in the key actors involved in urban economic development; these actors include individuals from the locally elected authorities, central government bodies, and businesses. The new urban governance is based on the range of agencies responsible for economic development and upon the growing importance of business in policy formulation and implementation.
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Affiliation(s)
- P John
- Department of Politics, University of Southampton, Highfield, Southampton SO17 1BJ, England
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Ullah A, Kalsoom UE, Umair M, John P, Ansar M, Basit S, Ahmad W. Exome sequencing revealed a novel splice site variant in the ALX1 gene underlying frontonasal dysplasia. Clin Genet 2016; 91:494-498. [PMID: 27324866 DOI: 10.1111/cge.12822] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2016] [Revised: 06/11/2016] [Accepted: 06/13/2016] [Indexed: 12/19/2022]
Abstract
Frontonasal dysplasia (FND) is a heterogeneous group of disorders characterized by hypertelorism, telecanthus, broad nasal root, wide prominent nasal bridge, short and wide nasal ridge, broad columella and smooth philtrum. To date one X-linked and three autosomal recessive forms of FND have been reported in different ethnic groups. We sought to identify the gene responsible for FND in a consanguineous Pakistani family segregating the disorder in autosomal recessive pattern. Genome-wide homozygosity mapping using 250KNsp array revealed five homozygous regions in the selected affected individuals. Exome sequencing found a novel splice acceptor site variant (c.661-1G>C: NM_006982.2) in ALX1. Sanger sequencing confirmed the correct segregation of the pathogenic variant in the whole family. Our study concludes that the splice site variant identified in the ALX1 gene causes mild form of FND.
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Affiliation(s)
- A Ullah
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - U-E Kalsoom
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - M Umair
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - P John
- Department of Healthcare Biotechnology, Atta-ur-Rehman School of Applied Biosciences (ASAB), National University of Science & Technology (NUST), Islamabad, Pakistan
| | - M Ansar
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - S Basit
- Center for Genetics and Inherited Diseases, Taibah University, Al Madinah Al Munawarah, Saudi Arabia
| | - W Ahmad
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
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Abstract
Different morphology of carbon fibres have been synthesised on diamond films by hydrogen plasma etching in the presence of silicon.
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Affiliation(s)
- I. Villalpando
- School of Engineering and Physical Sciences
- Heriot-Watt University
- Edinburgh
- UK
| | - P. John
- School of Engineering and Physical Sciences
- Heriot-Watt University
- Edinburgh
- UK
| | - S. Porro
- School of Engineering and Physical Sciences
- Heriot-Watt University
- Edinburgh
- UK
| | - J. I. B. Wilson
- School of Engineering and Physical Sciences
- Heriot-Watt University
- Edinburgh
- UK
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Soumelidou K, Morris D, Battey N, Barnett J, John P. Auxin transport capacity in relation to the dwarfing effect of apple rootstocks. ACTA ACUST UNITED AC 2015. [DOI: 10.1080/14620316.1994.11516505] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Moya-Leon MA, John P. Activity of 1-aminocyclopropane-l-carboxylate (ACC) oxidase (ethylene-forming enzyme) in the pulp and peel of ripening bananas. ACTA ACUST UNITED AC 2015. [DOI: 10.1080/14620316.1994.11516451] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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15
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Woodley-Cook J, Simons M, Amaral J, John P. Interventional radiology management of pediatric vascular anomalies. J Vasc Interv Radiol 2015. [DOI: 10.1016/j.jvir.2014.12.550] [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: 11/15/2022] Open
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John P, Azeem W, Ashfaq M, U. Khan I, N. Razzaq S, Ud-Din Khan S. Stability-indicating RP-HPLC method for simultaneous determination of methoxsalen and p-aminobenzoic acid in binary combination. B CHEM SOC ETHIOPIA 2015. [DOI: 10.4314/bcse.v29i1.3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [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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Sreedharan N, Vinitha M, John P, Girish T, Vijayanarayana K, Gabriel R. Utilization Of Total Parenteral Nutrition In A South Indian Tertiary Care Hospital. Value Health 2014; 17:A370. [PMID: 27200786 DOI: 10.1016/j.jval.2014.08.840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
| | | | - P John
- Manipal University, Manipal, India
| | - T Girish
- Manipal University, Manipal, India
| | | | - R Gabriel
- New Medical Center Specality Hospital, Madinat Zayed, United Arab Emirates
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Wang F, Roy A, Badkul R, John P, Kumar P, Staecker H. MS-27 * THE IMPACT OF HYPOFRACTIONATED LINAC-BASED STEREOTACTIC RADIOSURGERY UPON EARLY AUDITORY FUNCTIONS IN THE TREATMENT OF VESTIBULAR SCHWANNOMAS. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou260.26] [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: 11/13/2022] Open
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Vincent J, Jamil T, Rafiq M, Anwar Z, Ayaz M, Hameed A, Nasr T, Naeem F, Khattak N, Carter M, Ahmed I, John P, Wiame E, Andrade D, Schaftingen E, Mir A, Ayub M. Phosphoserine phosphatase (PSPH) gene mutation in an intellectual disability family from Pakistan. Clin Genet 2014; 87:296-8. [DOI: 10.1111/cge.12445] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Revised: 06/08/2014] [Accepted: 06/16/2014] [Indexed: 11/29/2022]
Affiliation(s)
- J.B. Vincent
- Molecular Neuropsychiatry and Development (MiND) Laboratory, The Campbell Family Brain Research Institute; The Centre for Addiction and Mental Health (CAMH); Toronto ON Canada
- Department of Psychiatry; University of Toronto; Toronto ON Canada
- Institute of Medical Science; University of Toronto; Toronto ON Canada
| | - T. Jamil
- Human Molecular Genetics Laboratory, Department of Bioinformatics and Biotechnology, FBAS; International Islamic University; Islamabad Pakistan
| | - M.A. Rafiq
- Molecular Neuropsychiatry and Development (MiND) Laboratory, The Campbell Family Brain Research Institute; The Centre for Addiction and Mental Health (CAMH); Toronto ON Canada
| | - Z. Anwar
- Human Molecular Genetics Laboratory, Department of Bioinformatics and Biotechnology, FBAS; International Islamic University; Islamabad Pakistan
| | - M. Ayaz
- Lahore Institute of Research and Development; Lahore Pakistan
| | - A. Hameed
- Institute of Biomedical and Genetic Engineering; Islamabad Pakistan
| | - T. Nasr
- Mayo Hospital, Lahore and Chaudry Hospital; Gujranwala Pakistan
| | - F. Naeem
- Lahore Institute of Research and Development; Lahore Pakistan
- Department of Psychiatry; Queen's University; Kingston ON Canada
| | - N.A. Khattak
- Department of Biochemistry; PMAS-Arid Agriculture University; Rawalpindi Pakistan
| | - M. Carter
- Department of Pediatrics, Division of Clinical and Metabolic Genetics; The Hospital for Sick Children; Toronto ON Canada
| | - I. Ahmed
- Molecular Neuropsychiatry and Development (MiND) Laboratory, The Campbell Family Brain Research Institute; The Centre for Addiction and Mental Health (CAMH); Toronto ON Canada
- Atta-ur-Rehman School of Applied Biosciences (ASAB); National University of Sciences and Technology (NUST); Islamabad Pakistan
| | - P. John
- Krembil Neuroscience Centre; Toronto Western Research Institute; Toronto Canada
| | - E. Wiame
- Laboratory of Physiological Chemistry, de Duve Institute; Université Catholique de Louvain; B-1200 Brussels Belgium
| | - D.M. Andrade
- Krembil Neuroscience Centre; Toronto Western Research Institute; Toronto Canada
- Division of Neurology, Department of Medicine; University or Toronto; Toronto ON Canada
| | - E.V. Schaftingen
- Laboratory of Physiological Chemistry, de Duve Institute; Université Catholique de Louvain; B-1200 Brussels Belgium
| | - A. Mir
- Human Molecular Genetics Laboratory, Department of Bioinformatics and Biotechnology, FBAS; International Islamic University; Islamabad Pakistan
| | - M. Ayub
- Lahore Institute of Research and Development; Lahore Pakistan
- Department of Psychiatry; Queen's University; Kingston ON Canada
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Sivalingam PN, Satheesh V, John P, Chandramohan S, Malathi VG. Complete genome sequence of an isolate of Clerodendron yellow mosaic virus--a new begomovirus from India. Acta Virol 2012; 55:357-60. [PMID: 22149502 DOI: 10.4149/av_2011_04_357] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Clerodendron inerme, a common hedge plant grown in India, is affected by a yellow mosaic disease caused by a begomovirus. In the present study, the complete genome (DNA A) of this virus was cloned and sequenced. The total size of DNA A is 2760 nucleotides. The genome of this virus contains six open reading frames and a non-coding intergenic region of 293 nucleotides. Nucleotide sequence comparison analysis revealed maximum sequence identity with Papaya leaf curl virus-Pakistan [Pakistan:Cotton:2002] (73.9%). As this virus had less than 89% identity with other begomoviruses, it was identified as a new begomovirus species and tentatively, named as Clerodendron yellow mosaic virus-[India:New Delhi:2007] (ClYMV-[IN:ND:07]).
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Affiliation(s)
- P N Sivalingam
- Plant Virology Unit, Indian Agricultural Research Institute, New Delhi, India
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21
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Abstract
Opisthotonus is known to occur in tetanus, rabies, cerebral malaria, neurosyphilis, acute cerebral injury and other medical conditions. Opisthotonus, so far, has not been reported in any major psychiatric disorder. Authors report a case of recurrent opisthotonus presenting concurrently with other catatonic signs which showed dramatic response to combination of lorazepam and electroconvulsive therapy (ECT). Clinicians should consider the possibility of catatonia in the differential diagnosis of opisthotonus since catatonia can be treated easily with benzodiazepines and ECT.
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Affiliation(s)
- Narayana Manjunatha
- Department of Psychiatry, National Institute of Mental Health and Neurosciences (NIMHANS), Bangalore, India.
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Sorensen AM, Rouse DT, Clements MA, John P, Perotti E. Description of a fertilization-independent obligate apomictic species: Corunastylis apostasioides Fitzg. ACTA ACUST UNITED AC 2009; 22:153-65. [DOI: 10.1007/s00497-009-0100-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2008] [Accepted: 05/15/2009] [Indexed: 11/30/2022]
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23
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Kamran-ul-Hassan Naqvi S, Raza S, Naveed A, John P, Ahmad W. A novel deletion mutation in the phospholipase H (LIPH) gene in a consanguineous Pakistani family with autosomal recessive hypotrichosis (LAH2). Br J Dermatol 2009; 160:194-6. [DOI: 10.1111/j.1365-2133.2008.08822.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Traill W, Arnoult M, Chambers S, Deaville E, Gordon M, John P, Jones P, Kliem K, Mortimer S, Tiffin J. The potential for competitive and healthy food chains of benefit to the countryside. Trends Food Sci Technol 2008. [DOI: 10.1016/j.tifs.2008.01.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Wali A, Chishti MS, Ayub M, Yasinzai M, Ali G, John P, Ahmad W. Localization of a novel autosomal recessive hypotrichosis locus (LAH3) to chromosome 13q14.11-q21.32. Clin Genet 2007; 72:23-9. [PMID: 17594396 DOI: 10.1111/j.1399-0004.2007.00818.x] [Citation(s) in RCA: 17] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Autosomal recessive hypotrichosis is a rare form of alopecia characterized by sparse hair on scalp, sparse to absent eyebrows and eyelashes, and sparse auxiliary and body hair. Previously, for this form of hypotrichosis, two loci LAH (localized hereditary hypotrichosis) and AH (autosomal recessive hereditary hypotrichosis) have been mapped on chromosome 18q12.1 and 3q27.2, respectively. In the study presented here, we report the localization of a third locus for autosomal recessive form of hypotrichosis in two large Pakistani families. The patients in the two families exhibited typical features of the hereditary hypotrichosis. Genome scan using polymorphic microsatellite markers mapped the gene on chromosome 13q14.11-q21.32. A maximum combined two-point logarithm of odds (LOD) score of 4.79 at theta= 0.0 was obtained for several markers. Multipoint linkage analysis resulted in a maximum LOD score of 5.9, which further supports the linkage. Haplotype analysis defined the linkage interval of 17.35 cM flanked by markers D13S325 and D13S1231 according to the Rutgers combined linkage-physical map. This region contains 24.41 Mb according to the build 36 of the human genome sequence-based physical map.
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Affiliation(s)
- A Wali
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
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26
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Abstract
Ectodermal dysplasias (ED) are developmental disorders affecting tissues of ectodermal origin including hair, nail, teeth and sweat glands. To date, four different types of ectodermal dysplasias involving only hair and nails have been described. In an effort to understand the molecular basis of ED of hair and nails, a Pakistani family with multiple affected individuals was studied. Linkage analysis was carried out by genotyping eight members of the family (five normal and three affected) using microsatellite markers linked to the related phenotype. The diseased phenotype was mapped to chromosome 12p11.1-q21.1 (Zmax=3.1). DNA sequence analysis of the coding exons and splice sites of six hair keratin genes, located in the linkage interval, failed to detect any pathogenic mutation in the affected individuals of the family. Failure to detect a mutation in the epithelial keratin genes suggests that the mutation lies either in the regulatory region of one of the keratin genes or in another unknown gene, located in the linkage interval, with a possible role in the development of ectodermal appendages.
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Affiliation(s)
- M Naeem
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
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Naeem M, Jelani M, Lee K, Ali G, Chishti MS, Wali A, Gul A, John P, Hassan MJ, Leal SM, Ahmad W. Ectodermal dysplasia of hair and nail type: mapping of a novel locus to chromosome 17p12-q21.2. Br J Dermatol 2007; 155:1184-90. [PMID: 17107387 PMCID: PMC6155468 DOI: 10.1111/j.1365-2133.2006.07509.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND Ectodermal dysplasias (EDs) describe a large and complex group of disorders characterized by abnormal development of the skin and appendages (hair, nails, teeth and sweat glands). Of the approximately 200 different EDs, about 30 have been studied at the molecular level. In an effort to understand the molecular bases of ED of hair and nail type, we studied a Pakistani consanguineous family with multiple affected individuals. OBJECTIVES To localize the gene responsible for the autosomal recessive form of ED of hair and nail type. METHODS Genotyping of nine members of the family, including five affected and four normal individuals was performed using microsatellite markers mapping to candidate regions, harbouring genes involved in related phenotypes. Five epithelial keratin genes located in the candidate region were sequenced to identify the pathogenic mutation. RESULTS We mapped the disease locus to a 24.2-cM interval flanked by markers D17S839 and D17S1299 on chromosome 17p12-q21.2 (Z(max) = 4.4). DNA sequencing of five epithelial keratin candidate genes, present in the disease locus, did not reveal any pathogenic mutation in the affected individuals. CONCLUSIONS The gene for ED of hair and nail type has been mapped to chromosome 17p12-q21.2 in a Pakistani consanguineous family. Failure to detect mutations in epithelial keratin genes suggests that the mutation may lie either in regulatory regions of one of the epithelial keratin genes or in another unknown gene, located in the linkage interval, with a possible role in the development of ectodermal appendages.
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Affiliation(s)
- M Naeem
- Department of Biological Sciences, Quaid-I-Azam University, Islamabad, Pakistan
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Abstract
Alopecia with mental retardation syndrome (APMR) is a rare autosomal recessive disorder characterized by total or partial absence of hair from the scalp and other parts of the body and associated with mental retardation. Previously, we have reported the mapping of two alopecia and mental retardation genes (APMR1 and APMR2) on human chromosome 3. In the present study, after excluding both of these loci through linkage analysis, a whole genome scan was performed by genotyping 396 polymorphic microsatellite markers located on 22 autosomes and the X and Y chromosomes. A disease locus was mapped to a 10.9 cM region, flanked by markers D18S866 and D18S811, on chromosome 18q11.2-q12.2. A maximum two-point LOD score of 3.03 at theta= 0.0 was obtained with marker D18S1102. Multipoint linkage analysis resulted in maximum LOD scores of 4.03 with several markers in the candidate region. According to the Rutgers combined linkage-physical map of the human genome (build 36) this region covers 12.17 Mb. DNA sequence analysis of nine candidate genes including DSC3, DSC1, DSG1, DSG4, DSG3, ZNF397, ZNF271, ZNF24 and ZNF396 did not reveal any sequence variants in the affected individuals of the family presented here.
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Affiliation(s)
- A. Wali
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - G. Ali
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - P. John
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - K. Lee
- Department of Molecular and Human Genetics, Baylor College of Medicine, One Baylor Plaza, Alkek Building, N1619.01, TX 77030 USA
| | - M. S. Chishti
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - S. M. Leal
- Department of Molecular and Human Genetics, Baylor College of Medicine, One Baylor Plaza, Alkek Building, N1619.01, TX 77030 USA
| | - W. Ahmad
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
- Corresponding author: Wasim Ahmad PhD, Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan. Tel: 92-51-90643003; Fax: 92-51-9205753.
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Rakhimov RK, Ermakov VP, John P, Zaitsev DB, Shkarin NY, Timonin AS. Conveyor and cabinet drying of materials using a functional ceramic. Chem Petrol Eng 2007. [DOI: 10.1007/s10556-007-0038-4] [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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Venkatesan T, Sen N, Korula PJ, Surendrababu NRS, Raj JP, John P, Christopher S. Blind placements of peripherally inserted antecubital central catheters: initial catheter tip position in relation to carina. Br J Anaesth 2007; 98:83-8. [PMID: 17124185 DOI: 10.1093/bja/ael316] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND We investigated how often blind placement of peripherally inserted central catheters (PICCs) through the antecubital veins results in a correct tip location in relation to carina and evaluated the inter-observer agreement in locating the tip of PICCs in plain radiography with digital imaging. METHODS In this study, 202 suitable chest radiographs with PICCs out of 803 patients were identified. An initial audit on the tip of these catheters in relation to carina was done by a consultant anaesthetist and was recorded as the first observer. The same sets of CXRs were examined by a consultant radiologist and the tips were identified and recorded as the second observer. Inter-observer agreement was assessed. RESULTS In 75 of 202 (37%), PICCs had a central tip location in relation to the carina. Fifty-five of 131 (42%) right-sided catheters had a central location compared with 20 of 71 (28%) of the left-sided catheters. The tip position for right-sided catheters was most frequently centrally located whereas the tip for left-sided catheters was most commonly positioned in the ipsilateral innominate vein. There was excellent agreement between the observers in reporting the tip of PICCs at all positions (kappa=0.87) including central locations (kappa=0.83). CONCLUSIONS Right antecubital PICCs are more likely to be placed in the central location in relation to the carina. PICCs inserted through the left antecubital veins need to be pushed further down to aim for a central location. Inter-observer variability in identifying the tip of PICCs is least with the introduction of digital imaging.
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Affiliation(s)
- T Venkatesan
- Department of Anaesthesia, Christian Medical College Hospital, Vellore, Tamil Nadu, India.
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Wali A, John P, Gul A, Lee K, Chishti MS, Ali G, Hassan MJ, Leal SM, Ahmad W. A novel locus for alopecia with mental retardation syndrome (APMR2) maps to chromosome 3q26.2-q26.31. Clin Genet 2006; 70:233-9. [PMID: 16922726 PMCID: PMC6155482 DOI: 10.1111/j.1399-0004.2006.00661.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Congenital alopecia may occur either alone or in association with ectodermal and other abnormalities. On the bases of such associations, several different syndromes featuring congenital alopecia can be distinguished. Alopecia with mental retardation syndrome (APMR) is a rare autosomal recessive disorder, clinically characterized by total or partial hair loss and mental retardation. In the present study, a five-generation Pakistani family with multiple affected individuals with APMR was ascertained. Patients in this family exhibited typical features of APMR syndrome. The disease locus was mapped to chromosome 3q26.2-q26.31 by carrying out a genome scan followed by fine mapping. A maximum two-point logarithm of odds (LOD) score of 2.93 at theta=0.0 was obtained at markers D3S3053 and D3S2309. Multipoint linkage analysis resulted in a maximum LOD score of 4.57 with several markers, which supports the linkage. The disease locus was flanked by markers D3S1564 and D3S2427, which corresponds to 9.6-cM region according to the Rutgers combined linkage-physical map of the human genome (build 35) and contains 5.6 Mb. The linkage interval of the APMR locus identified here does not overlap with the one described previously; therefore, this locus has been designated as APMR2.
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Affiliation(s)
- A Wali
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
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Affiliation(s)
- P. John
- a Department of Chemistry , Heriot-Watt University , Riccarton, Currie, Edinburgh EH14 4AS, Scotland
| | - B. C. Cowie
- a Department of Chemistry , Heriot-Watt University , Riccarton, Currie, Edinburgh EH14 4AS, Scotland
| | - I. M. Odeh
- a Department of Chemistry , Heriot-Watt University , Riccarton, Currie, Edinburgh EH14 4AS, Scotland
- b Department of Physics , Yarmouk University , Irbid , Jordan
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John P, Odeh IM, Thomas MJK, Tricker MJ, Riddoch F, Wilson JIB. Studies of the mechanism of the decomposition of hydrogenated a-Si films. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/01418638008224033] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- P. John
- a Heriot-Watt University , Riccarton, Currie, Edinburgh , EH14 4AS , Scotland
- b Department of Chemistry
| | - I. M. Odeh
- a Heriot-Watt University , Riccarton, Currie, Edinburgh , EH14 4AS , Scotland
- b Department of Chemistry
| | - M. J. K. Thomas
- a Heriot-Watt University , Riccarton, Currie, Edinburgh , EH14 4AS , Scotland
- b Department of Chemistry
| | - M. J. Tricker
- a Heriot-Watt University , Riccarton, Currie, Edinburgh , EH14 4AS , Scotland
- b Department of Chemistry
| | - F. Riddoch
- a Heriot-Watt University , Riccarton, Currie, Edinburgh , EH14 4AS , Scotland
- c Department of Physics
| | - J. I. B. Wilson
- a Heriot-Watt University , Riccarton, Currie, Edinburgh , EH14 4AS , Scotland
- c Department of Physics
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Ali G, Santos RLP, John P, Wambangco MAL, Lee K, Ahmad W, Leal S. The mapping of DFNB62, a new locus for autosomal recessive non-syndromic hearing impairment, to chromosome 12p13.2-p11.23. Clin Genet 2006; 69:429-33. [PMID: 16650082 PMCID: PMC2909107 DOI: 10.1111/j.1399-0004.2006.00611.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Autosomal recessive non-syndromic hearing impairment (ARNSHI) is the most common form of prelingual inherited hearing impairment (HI). Here is described the mapping of a novel ARNSHI locus in a consanguineous Pakistani family with profound congenital HI. Two-point and multipoint linkage analyses were performed for the genome scan and fine mapping markers. Haplotypes were constructed to determine the region of homozygosity. At theta = 0, the maximum two-point LOD score of 4.0 was obtained at marker AAC040. A maximum multipoint LOD score of 5.3 was derived at marker D12S320, with the three-unit support interval demarcated by D12S89 and D12S1042. The region of homozygosity is flanked by markers D12S358 and D12S1042, which corresponds to 22.4 cM according to the Rutgers combined linkage-physical map of the human genome and spans 15.0 Mb on the sequence-based physical map. A novel ARNSHI locus DFNB62 was mapped to chromosome 12p13.2-p11.23. DFNB62 represents the second ARNSHI locus to map to chromosome 12.
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Affiliation(s)
- G Ali
- Department of Biological Sciences, Quaid-I-Azam University, Islamabad, Pakistan
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Rodrigues AF, van Mourik IDM, Sharif K, Barron DJ, de Giovanni JV, Bennett J, Bromley P, Protheroe S, John P, de Ville de Goyet J, Beath SV. Management of end-stage central venous access in children referred for possible small bowel transplantation. J Pediatr Gastroenterol Nutr 2006; 42:427-33. [PMID: 16641582 DOI: 10.1097/01.mpg.0000215311.71040.89] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
UNLABELLED The 3-year survival after small bowel transplantation (SBTx) has improved to between 73% and 88%. Impaired venous access for parenteral nutrition can be an indication for SBTx in children with chronic intestinal failure. AIM To report our experience in management of children with extreme end-stage venous access. SUBJECTS The study consisted of 6 children (all boys), median age of assessment 27 months (range, 13-52 months), diagnosed with total intestinal aganglionosis (1), protracted diarrhea (1), and short bowel syndrome (4), of which gastroschisis (2) and malrotation with midgut volvulus (2) were the causes. All had a documented history of more than 10 central venous catheter insertions previously. All had venograms, and 1 child additionally had a magnetic resonance angiogram to evaluate venous access. Five of 6 presented with thrombosis of the superior vena cava (SVC) and/or inferior vena cava. METHODS Venous access was reestablished as follows: transhepatic venous catheters (5), direct intra-atrial catheter via midline sternotomy (4), azygous venous catheters (2), dilatation of left subclavian vein after passage of a guide wire and then placing a catheter to reach the right atrium (1), radiological recanalization of the SVC and placement of a central venous catheter in situ (1), and direct puncture of SVC stump(1). Complications included serous pleural effusion after direct intra-atrial line insertion, which resolved after chest drain insertion (1), displacement of transhepatic catheter needing repositioning (2), and SVC stent narrowing requiring repeated balloon dilatation. OUTCOME Four children with permanent intestinal failure on assessment were offered SBTx, 3 of which were transplanted and were established on full enteral nutrition; the family of 1 child declined the procedure. In the remaining 2 children in whom bowel adaptation was still a possibility, attempts were made to provide adequate central venous access as feeds and drug manipulations were undertaken. One of them received liver and SBTx nearly 3 years after presenting with end-stage central venous access, because attempts to achieve independence from parenteral nutrition had failed. The other child died immediately after a transhepatic venous catheter placement, possibly from a nutritional depletion syndrome as no physical cause of death was found. Direct intra-atrial catheters in transplanted children proved to be adequate for the management of uncomplicated transplantation, although the usual infusion protocol had to be modified considerably, and the lack of access would have been critical if massive blood transfusion had been required during the transplant procedure. CONCLUSION It was possible to reestablish central venous access in all cases. However, this was time consuming and difficult to assemble a skilled team consisting of one of more: surgeon, cardiologist, interventional radiologist, and transplant anesthetist. Small bowel transplantation is easier and safer with adequate central venous access, and we advocate liaison with an SBTx center at an early stage.
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Hofman A, John P, Schaffarich MP, Sinzinger H, Staudenherz A. Statins as a new therapeutic approach in dedifferentiated thyroid cancer? Nuklearmedizin 2006; 45:N28-30. [PMID: 16755692] [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: 05/10/2023]
Affiliation(s)
- A Hofman
- University Clinic of Nuclear Medicine, Medical University of Vienna, Austria
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Abstract
The reduction of water-insoluble indigo by the recently isolated moderate thermophile, Clostridium isatidis, has been studied with the aim of developing a sustainable technology for industrial indigo reduction. The ability to reduce indigo was not shared with C. aurantibutyricum, C. celatum and C. papyrosolvens, but C. papyrosolvens could reduce indigo carmine (5,5'-indigosulfonic acid), a soluble indigo derivative. The supernatant from cultures of C. isatidis, but not from cultures of the other bacteria tested, decreased indigo particle size to one-tenth diameter. Addition of madder powder, anthraquinone-2,6-disulfonic acid, and humic acid all stimulated indigo reduction by C. isatidis. Redox potentials of cultures of C. isatidis were about 100 mV more negative than those of C. aurantibutyricum, C. celatum and C. papyrosolvens, and reached -600 mV versus the SCE in the presence of indigo, but potentials were not consistently affected by the addition of the quinone compounds, which probably act by modifying the surface of the bacteria or indigo particles. It is concluded that C. isatidis can reduce indigo because (1) it produces an extracellular factor that decreases indigo particle size, and (2) it generates a sufficiently reducing potential.
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Affiliation(s)
- S K Nicholson
- Plant Science Laboratories, School of Plant Sciences, The University of Reading, Reading, RG6 6AS, UK
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Udo EE, Al-Sweih N, John P, Jacob LE, Mohanakrishnan S. Characterization of high-level aminoglycoside-resistant enterococci in Kuwait hospitals. Microb Drug Resist 2004; 10:139-45. [PMID: 15256029 DOI: 10.1089/1076629041310037] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
This study investigated the distribution of genes for aminoglycoside-modifying enzymes (AME) and the genetic relatedness of high-level aminoglycoside-resistant enterococci isolated in Kuwait hospitals. A total of 117 enterococci, consisting of 109 Enterococcus faecalis, seven Enterococcus faecium, and one Enterococcus casseliflavus were studied. The MICs of gentamicin, kanamycin, amikacin, tobramycin, and streptomycin were determined by agar dilution and the genes encoding the AAC(6')- APH(2"), ANT(4'), APH(3'), APH (2")-Ib, APH (2")-Ic, APH (2")-Id, and ANT(6) enzymes were amplified by PCR. They were typed by pulsed-field gel electrophoresis (PFGE). Filter mating was used to transfer gentamicin resistance determinants. They were all resistant to kanamycin (MIC 2000 mg/L). Fifty-five isolates were resistant to gentamicin (MIC 500 mg/L), 72 were resistant to tobramycin (MIC 64 mg/L), 115 were resistant to amikacin (MIC 64 mg/L), and 97 were resistant to streptomycin (MIC 1000 mg/L). The aac(6')-Ie-aph(2")-Ia was detected in all isolates with gentamicin MIC 500 mg/L and in 15 isolates with gentamicin MIC 256 mg/L. The aph(3')-IIIa gene was detected in 101 isolates, whereas the ant(6')-Ia gene was detected in 85 of the 97 streptomycin-resistant isolates with MIC 1000 mg/L. The aac(6')-Ii gene was detected only in the seven E. faecium isolates. None of them contained ant(4')-Ia, aph(2")-Ib, aph(2")-Ic and aph(2")-Id. PFGE revealed heterogeneous patterns with no dominant clone. The results demonstrated that AME are common in aminoglycoside-resistant enterococci isolated in Kuwait. However, the absence of a dominant clone suggests that they acquired high-level aminoglycoside independently.
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Affiliation(s)
- E E Udo
- Department of Microbiology, Faculty of Medicine, Kuwait University, Safat 13110, Kuwait.
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Abstract
Intra-renal pseudo-aneurysms after penetrating renal trauma have not been reported in children. We report a case of a 9-year-old girl who presented with gross haematuria 2 weeks following renal exploration for a penetrating injury. The diagnosis of intra-renal pseudoaneurysm was made by Doppler ultrasound and was successfully treated by selective arterial embolisation.
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Affiliation(s)
- B More
- Department of Paediatric Urology, Birmingham Children's Hospital, Steelhouse Lane, Birmingham B4 6NH, UK
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Affiliation(s)
- H Wang
- Department of Biochemistry, University of Saskatchewan, Saskatoon SK, Canada S7N 5E5
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Preitfellner J, Pirich C, John P, Ofluoglu S, Sinzinger H, Havlik E. [Radiation doses deriving from patients treated with (166)Ho-ferric hydroxide]. Nuklearmedizin 2003; 42:251-4. [PMID: 14668958] [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: 04/27/2023]
Abstract
AIM To estimate radiation doses deriving from patients treated with (166)Ho ferric hydroxide. METHODS For radiation synoviorthesis about 900 +/- 100 MBq (166)Ho ferric hydroxide was injected into the knee joint of 16 patients. To estimate the radiation exposure of persons in the neighbourhood of the patients measurements of the dose rates were performed at 0.5 m, 1 m and 2 m distance of the treated joint 10 min after tracer injection. Measurements were carried out with and without radiation protection devices of the syringe. RESULTS The initial values of the dose rate were 11.9 micro Sv/h at 0.5 m, 3.5 micro Sv/h at 1 m and 1 micro Sv/h at 2 m distance, respectively. The whole body doses were 2.9 micro Sv for the physician and 4.6 micro Sv for the technologist. The finger doses for the technologist and the physician were ranging from 65 to 111 micro Sv. After discharge at home other persons might receive 118 micro Sv. CONCLUSION Our results, under very strict assumptions, clearly demonstrate that the calculated radiation exposure to medical and non medical personnel is well below the maximum annual dose limit. The use of any additional radiation protection device as syringe shielding does not significantly lower radiation exposure.
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Affiliation(s)
- J Preitfellner
- Universitätsklinik für Nuklearmedizin, AKH Wien, Währinger Gürtel 18-20, A-1090 Wien, Osterreich.
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Gehrke I, John P, Blundell J, Pearson L, Williams A, de Ville de Goyet J. Meso-portal bypass in children with portal vein thrombosis: rapid increase of the intrahepatic portal venous flow after direct portal hepatic reperfusion. J Pediatr Surg 2003; 38:1137-40. [PMID: 12891481 DOI: 10.1016/s0022-3468(03)00257-4] [Citation(s) in RCA: 21] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
BACKGROUND/PURPOSE In children with portal vein (PV) thrombosis, hepatopetal portal flow can be restored by an innovative surgical procedure, the meso-portal-bypass (MPB), if the umbilical portion of the intrahepatic left PV and the superior mesenteric vein are patent. This is associated with resolution of symptoms related to extrahepatic portal hypertension (EHPH). However, no data are available yet on intrahepatic hemodynamic changes after MPB. The aim of this study was to evaluate morphologic adaptation and flow characteristics of the intrahepatic PV branches (ihPVb) after MPB. METHODS Prospective follow-up Doppler scans of the ihPVb were performed at 0.5 to 1, 3 to 6 and 12 months after MPB in 13 consecutive patients (2000-2002) and compared with preoperative findings. RESULTS Only small ihPVb were detected preoperatively on Doppler in 8 of 13 cases. Postoperatively (median follow up 12; range, 6 to 24 months), all 13 patients had patent MPB with hepatopetal flow, and ihPVb were easy to detect with satisfactory vessel diameters and flow velocities. CONCLUSIONS The preoperatively small ihPVb increase rapidly in diameter and hepatopetal flow velocity in patients benefiting from MPB. This correlates well with progressive resolution of their symptoms related to EHPH and reflects rapid adaptation of ihPVb.
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Affiliation(s)
- I Gehrke
- Liver Unit, Birmingham Children Hospital, Birmingham, England UK
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Lyall TW, Ellis RH, John P, Hedley CL, Wang TL. Mutant alleles at the rugosus loci in pea affect seed moisture sorption isotherms and the relations between seed longevity and moisture content. J Exp Bot 2003. [PMID: 12493872 DOI: 10.1093/oxfordjournals.aob.a087961] [Citation(s) in RCA: 20] [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] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Pea (Pisum sativum L.) mutant near-isogenic lines (RRrbrb, rrRbRb, rrrbrb) with lower starch but higher lipid contents, brought about by lesions in the starch biosynthetic pathway, had seed moisture sorption isotherms displaced below that of the wild type (RRRbRb). The negative logarithmic relationship between seed longevity and seed storage moisture content (%, f.wt basis), determined in hermetic storage at 65 degrees C, also differed: longevity in the mutant near-isogenic lines was poorer and less sensitive to moisture content than in the wild type (i.e. C(W) was lower). The low-moisture-content limit (m(c)) to this relation also differed, being lower in the mutant near-isogenic lines (5.4-5.9%) than in the wild type (6.1%). In contrast, all four near-isogenic lines showed no difference (P >0.25) in the negative semi-logarithmic relationship between equilibrium relative humidity (ERH) and seed longevity. It is concluded that the effect of these alleles at the r and rb loci on seed longevity was largely indirect; a consequence of their effect on seed composition and hence on moisture sorption isotherms. However, this explanation could not be invoked at moisture contents below m(c) where differences in longevity remained substantial (RRRbRb double that of rrrbrb). Hence, these mutant alleles affected seed longevity directly at very low moisture contents.
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Affiliation(s)
- T W Lyall
- Department of Agriculture, The University of Reading, Earley Gate, PO Box 237, RG6 6AR, UK
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Lyall TW, Ellis RH, John P, Hedley CL, Wang TL. Mutant alleles at the rugosus loci in pea affect seed moisture sorption isotherms and the relations between seed longevity and moisture content. J Exp Bot 2003; 54:445-50. [PMID: 12493872 DOI: 10.1093/jxb/erg059] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Pea (Pisum sativum L.) mutant near-isogenic lines (RRrbrb, rrRbRb, rrrbrb) with lower starch but higher lipid contents, brought about by lesions in the starch biosynthetic pathway, had seed moisture sorption isotherms displaced below that of the wild type (RRRbRb). The negative logarithmic relationship between seed longevity and seed storage moisture content (%, f.wt basis), determined in hermetic storage at 65 degrees C, also differed: longevity in the mutant near-isogenic lines was poorer and less sensitive to moisture content than in the wild type (i.e. C(W) was lower). The low-moisture-content limit (m(c)) to this relation also differed, being lower in the mutant near-isogenic lines (5.4-5.9%) than in the wild type (6.1%). In contrast, all four near-isogenic lines showed no difference (P >0.25) in the negative semi-logarithmic relationship between equilibrium relative humidity (ERH) and seed longevity. It is concluded that the effect of these alleles at the r and rb loci on seed longevity was largely indirect; a consequence of their effect on seed composition and hence on moisture sorption isotherms. However, this explanation could not be invoked at moisture contents below m(c) where differences in longevity remained substantial (RRRbRb double that of rrrbrb). Hence, these mutant alleles affected seed longevity directly at very low moisture contents.
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Affiliation(s)
- T W Lyall
- Department of Agriculture, The University of Reading, Earley Gate, PO Box 237, RG6 6AR, UK
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Pirich C, John P, Ofluoglu S, Sinzinger H, Havlik E, Preitfellner J. Radiation doses deriving from patients treated with 166Ho-ferric hydroxide. Nuklearmedizin 2003. [DOI: 10.1055/s-0038-1625736] [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: 10/17/2022]
Abstract
Summary
Aim: To estimate radiation doses deriving from patients treated with 166Ho ferric hydroxide. Methods: For radiation synoviorthesis about 900 ± 100 MBq 166Ho ferric hydroxide was injected into the knee joint of 16 patients. To estimate the radiation exposure of persons in the neighbourhood of the patients measurements of the dose rates were performed at 0.5 m, 1 m and 2 m distance of the treated joint 10 min after tracer injection. Measurements were carried out with and without radiation protection devices of the syringe. Results: The initial values of the dose rate were 11.9 μSv/h at 0.5 m, 3.5 μSv/h at 1 m and 1 μSv/h at 2 m distance, respectively. The whole body doses were 2.9 μSv for the physician and 4.6 μSv for the technologist. The finger doses for the technologist and the physician were ranging from 65 to 111 μSv. After discharge at home other persons might receive 118 μSv. Conclusion: Our results, under very strict assumptions, clearly demonstrate that the calculated radiation exposure to medical and non medical personnel is well below the maximum annual dose limit. The use of any additional radiation protection device as syringe shielding does not significantly lower radiation exposure.
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Bachmann T, Vonau W, John P. Study of the structure of passivated vanadium-titanium alloys and their semiconductor properties. Anal Bioanal Chem 2002; 374:715-9. [PMID: 12397500 DOI: 10.1007/s00216-002-1317-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2001] [Revised: 04/11/2002] [Accepted: 04/12/2002] [Indexed: 11/30/2022]
Abstract
The possibility of investigating the photocurrent behavior and structure of electrochemically prepared passive films on metallic titanium and on binary vanadium-titanium alloys has been demonstrated. The semiconductor properties were characterized by measuring the dependence of the photocurrent on the wavelength of the incident light and on the electrode potential. The results showed the oxide layers to be n-type semiconductors with a bandgap between 2.6 and 3.3 eV and a flatband potential of approximately -300 to +400 mV (relative to the SCE). The results were interpreted in terms of the corrosion characteristics of the materials. XPS measurements on pure vanadium and some alloys are presented. Several properties were used to characterize the passive surface of these materials. The V(2)O(5) and TiO(2) content decreases with increasing depth.
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Affiliation(s)
- T Bachmann
- Kurt-Schwabe-Institut für Mess- und Sensortechnik e V Meinsberg, Fabrikstrasse 69, 04720 Ziegra-Knobelsdorf, Germany
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Sharif K, Pimpalwar AP, John P, Johnson K, Donnell S, De Ville De Goyet J. Benefits of early diagnosis and preemptive treatment of biliary tract complications after major blunt liver trauma in children. J Pediatr Surg 2002; 37:1287-92. [PMID: 12194118 DOI: 10.1053/jpsu.2002.34984] [Citation(s) in RCA: 22] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND/PURPOSE Nonoperative management of blunt liver trauma may delay diagnosis of related biliary complications leading to delayed surgical intervention and related morbidity. The aim of this study was to see whether technetium (tc) 99 trimethylbromo-im-indolacetic acid (TBIDA) nuclear scan would allow noninvasive early diagnosis of bile leak and pre-emptive management. METHODS Retrospective analysis of the patient records and radiologic investigations of 7 patients admitted between April 1998 and December 2000 with "major" blunt liver trauma (parenchymal fracture of less than 4 cm on computed tomography [CT] scan or involving porta hepatis) and various types of biliary complications. Patients with or without early TBIDA diagnosis were compared. RESULTS There were 7 patients. The first 2 patients were treated conventionally without TBIDA, and late diagnosis was associated with further related problems (sepsis, life-threatening hemorrhage in both cases) and prolonged hospital stay. The subsequent 5 consecutive patients benefited from early diagnosis (TBIDA scan, 2 to 4 days after trauma), and preemptive management was done (tailored to each case). There was no further or related morbidity. All 7 patients currently are alive and well. CONCLUSIONS A TBIDA nuclear medicine scan was efficient in providing an early diagnosis of biliary leakage, thus, allowing adequate preemptive management. In turn, this may have helped avoid related added morbidity compared with cases of late diagnosis. Early TBIDA scan should be performed routinely when the initial CT scan confirms liver trauma graded as "major."
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Affiliation(s)
- K Sharif
- Paediatric Liver Unit and Departments of Radiology and General Paediatric Surgery, Birmingham Children's Hospital, Birmingham, England
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Abstract
Enterococci isolated in a teaching hospital were studied for their resistance to different antibiotics. Minimum inhibitory concentrations to high-level aminoglycosides and glycopeptide antibiotics were determined by agar dilution and E-test methods respectively. Genes encoding aminoglycoside-modifying enzymes were detected by the polymerase chain reaction (PCR). 195 enterococci were isolated from urines (54.3%), wounds (16.4%), blood (10.2%), and miscellaneous sources (18.9%). They consisted of E. faecalis (88.7%), E. faecium (9.2%), E. casseliflavus (1.5%) and E. bovis (0.5%). None of the enterococci produced penicillinase but 3.5% of them were resistant to ampicillin. They were also resistant to high-level gentamicin (15.9%), kanamycin (22.0%), streptomycin (21.0%), tetracycline (65.1%), erythromycin (62.6%), ciprofloxacin (36.1%), chloramphenicol (26.1%), vancomycin (3.0%) and teicoplanin (2.0%). Most of the high-level aminoglycoside-resistant isolates contained genes coding the bifunctional aminoglycoside modifying enzymes AAC(6')-APH(2"), APH(3') and ANT(6') but not the ANT(4') enzyme. The results demonstrated a low prevalence of vancomycin resistance among Enterococci in this hospital.
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Affiliation(s)
- E E Udo
- Department of Microbiology, Faculty of Medicine, Kuwait University, Safat, Kuwait.
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Sharif K, de Ville de Goyet J, Beath SV, Protheroe S, John P. Transhepatic hickman line placement: improving line stability by surgically assisted radiologic placement. J Pediatr Gastroenterol Nutr 2002; 34:561-3. [PMID: 12050586 DOI: 10.1097/00005176-200205000-00017] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- K Sharif
- Pediatric Liver Unit, Birmingham Children's Hospital, Birmingham, United Kingdom
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