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Mir A, Damany S, Tay HS. 68 A Full Audit Cycle: Documentation of Discharge Summaries and Functional Status in Electronic Discharge Letters. Age Ageing 2021. [DOI: 10.1093/ageing/afab030.29] [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
Electronic discharge letter is the most effective way to handover to General Practitioners for the continuity of care by providing the information about what happened during hospitalisation and what needs to happen after discharge. Well written discharge letters prevent miscommunication, missing information and medications errors as well as reduction of hospital workload. It also provides timely follow up to decrease the risk of re-hospitalisation.
The aim of this project is to analyse the documentation of discharge summaries and functional status after hospital admission in discharge letters. Discharge summary template was introduced and made compulsory in all Geriatric wards following first cycle of audit. We then compared data after introduction of discharge summary template.
Methods
Electronic discharge letters were reviewed for all patients discharged from Geriatric Department in July 2019 and results were compared with data from January 2019.
Results
162 patients were discharged in the second cycle of audit. Among these, 18 patients were deceased, and 4 patients had no discharge letters available. Therefore, total number of discharge letters analysed was 140. Please see Table 1 for comparative results on documentation of discharge summaries in discharge letters.
Conclusions
Introduction of the discharge summary template improved the documentation of summaries in discharge letters. Well-written discharge letter ensures the smooth transition for when patients leave the hospital. Therefore, it should be accurate, precise and relevant.
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Affiliation(s)
- A Mir
- Healthcare of Older People Department, Nottingham University Hospitals NHS Trust
| | - S Damany
- Healthcare of Older People Department, Nottingham University Hospitals NHS Trust
| | - H S Tay
- Healthcare of Older People Department, Nottingham University Hospitals NHS Trust
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Bashir S, Alsultan F, Iqbal M, Alabdulkarim N, Alammari K, Almousa A, Alsultan A, Almousa B, Albaradie R, Mir A, Al-Regaiey K, Habib SS, Abualait T. Healthcare workers' knowledge and attitudes towards COVID-19 in Saudi Arabia. Eur Rev Med Pharmacol Sci 2021; 25:1060-1069. [PMID: 33577062 DOI: 10.26355/eurrev_202101_24676] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The world is facing a devastating challenge in the COVID-19 (coronavirus disease 19) outbreak. Healthcare workers (HCWs) provide the first line of defense against any disease outbreak. Thus, the present study is designed to assess HCWs' attitudes towards, knowledge of, and awareness of COVID-19. MATERIALS AND METHODS A cross-sectional observational study was conducted using an online survey on social media; the participants were 597 adults. The study was conducted from March to April 2020. The questionnaire was randomly administered on Arabic-language social media applications; the 26-item survey assessed knowledge levels, attitudes, and practices. RESULTS The analysis includes 597 complete responses from HCWs; participants included physicians, nurses, medical students, and pharmacists. Most participants were females aged 18 to 25 years. Most participants agreed that the virus can spread via direct and indirect contact. Most participants indicated that they wash their hands; avoid touching their eyes, nose, or mouth; and avoid crowded places to protect themselves against infection. Most indicated that a bat was the original source of the virus. Most participating HCWs indicated that the symptoms of COVID-19 include fever, cough, and shortness of breath. Most of the participants also indicated that there is no specific treatment for patients infected with COVID-19. CONCLUSIONS The findings of this work can support the design of effective measures to prevent and control COVID-19 infections during the pandemic. The results also highlight where improvement is needed to HCWs' knowledge of and attitudes towards COVID-19; the findings also highlight the best healthcare practices regarding this illness.
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Affiliation(s)
- S Bashir
- Neuroscience Center, King Fahad Specialist Hospital, Dammam, Saudi Arabia.
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Refahi MS, Mir A, Nasiri JA. A novel fusion based on the evolutionary features for protein fold recognition using support vector machines. Sci Rep 2020; 10:14368. [PMID: 32873824 PMCID: PMC7463267 DOI: 10.1038/s41598-020-71172-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Accepted: 08/10/2020] [Indexed: 11/29/2022] Open
Abstract
Protein fold recognition plays a crucial role in discovering three-dimensional structure of proteins and protein functions. Several approaches have been employed for the prediction of protein folds. Some of these approaches are based on extracting features from protein sequences and using a strong classifier. Feature extraction techniques generally utilize syntactical-based information, evolutionary-based information and physicochemical-based information to extract features. In recent years, finding an efficient technique for integrating discriminate features have been received advancing attention. In this study, we integrate Auto-Cross-Covariance and Separated dimer evolutionary feature extraction methods. The results’ features are scored by Information gain to define and select several discriminated features. According to three benchmark datasets, DD, RDD ,and EDD, the results of the support vector machine show more than 6\documentclass[12pt]{minimal}
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\begin{document}$$\%$$\end{document}% improvement in accuracy on these benchmark datasets.
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Affiliation(s)
- Mohammad Saleh Refahi
- Department of Electrical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - A Mir
- Iranian Research Institute for Information Science and Technology (IranDoc), Tehran, Iran
| | - Jalal A Nasiri
- Iranian Research Institute for Information Science and Technology (IranDoc), Tehran, Iran.
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Saikal SL, Ge L, Mir A, Pace J, Abdulla H, Leong KF, Benelkahla M, Olabi B, Medialdea-Carrera R, Padovese V. Skin disease profile of Syrian refugees in Jordan: a field-mission assessment. J Eur Acad Dermatol Venereol 2019; 34:419-425. [PMID: 31498503 DOI: 10.1111/jdv.15909] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 07/08/2019] [Indexed: 11/30/2022]
Abstract
BACKGROUND Since the beginning of the Syrian war in 2011, the world has faced the most severe refugee crisis in history and 5.6 million Syrians have sought asylum in neighbouring countries or in Europe. According to recent estimates, more than 650 000 Syrian refugees are displaced in Jordan. OBJECTIVES This article aims to assess the demographic characteristics and skin disease profile of Syrian displaced people residing in Al Za'atari camp and in communities in Jordan. Furthermore, the authors discuss the barriers to healthcare provision experienced during field missions. METHODS This is a retrospective analysis of medical records collected during three medical missions in Jordan by an international dermatological team. Data on patient age, gender, country of origin and skin disease diagnoses were recorded both in Al Za'atari camp and Jordanian towns near the Syrian border. RESULTS A total of 1197 patients were assessed during the field missions, with 67.7% female and 37.1% under the age of 14 years. Dermatitis was the leading dermatological condition in both refugee camp and community healthcare clinics. Infectious diseases were the second most common; however, fungal presentations were more common in the community as opposed to viral in Al Za'atari. CONCLUSIONS High dermatitis presentations were likely secondary to the environment, living conditions and lack of access to emollients. Infectious diseases were postulated secondary to poor hygiene and sharing of overcrowded spaces. Barriers to health care included limited pharmacological formulary, difficulty in continuity of care and case referrals due to lack of specialized services. Better access to health care, improvement of living conditions and hygiene, and increased availability of medications including emollients and sunscreens are all interventions that should be carried out to reduce skin disease burden. Our findings should further urge the international community to uphold their commitments and uptake engagement in improving health care for Syrian displaced people.
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Affiliation(s)
- S L Saikal
- Department of Dermatology, Liverpool Hospital, Sydney, NSW, Australia.,Faculty of Medicine and Public Health, University of New South Wales, Sydney, NSW, Australia
| | - L Ge
- Department of Dermatology, University College London Hospital, London, UK
| | - A Mir
- Department of Dermatology, New York Medical College, New York, NY, USA
| | - J Pace
- St James Capua Hospital, Sliema, Malta
| | - H Abdulla
- New York-Presbyterian/Columbia University Irving Medical Centre, New York, NY, USA
| | - K F Leong
- Department of Dermatology, Kuala Lumpur General Hospital, Kuala Lumpur, Malaysia
| | - M Benelkahla
- Department of Dermatology, Farhat Hached Hospital, Sousse, Tunisia.,Faculty of Medicine, Ibn Aljazar, Sousse, Tunisia
| | - B Olabi
- Department of Dermatology, Lauriston Building, Edinburgh, UK
| | - R Medialdea-Carrera
- Infectious Disease Control Unit, Health Promotion and Disease Prevention Directorate, Msida, Malta.,European Programme for Intervention Epidemiology Training (EPIET), European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden
| | - V Padovese
- Department of Dermatology and Venereology, Genitourinary Clinic, Mater Dei Hospital, Msida, Malta
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Bashir S, Mir A, Al-Bradie R. Assessment of motor cortex excitability in a child with hemispheric polymicrogyria and focal epilepsy by navigated transcranial magnetic stimulation: A case report. J Neurol Sci 2019. [DOI: 10.1016/j.jns.2019.10.1738] [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: 10/25/2022]
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Pesant M, Das A, Taylor S, Mir A, Mann I, Yasuyama N, Bostick M, Dunne J, Farmer A. PO-391 High-throughput single-cell T-cell receptor profiling by SMART technology. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.903] [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] Open
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Yeong T, MacNeal P, Mir A, Samateh L, Jaun J, Kommu S, Rimington P. Skills Acquisition Trend and Outcomes From Laparoscopic to Robotic Assisted Radical Cystectomy. Int J Surg 2017. [DOI: 10.1016/j.ijsu.2017.08.525] [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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El-Qutob D, Bartolome B, Cuesta J, Mir A, Alberola A, Pastor-Vargas C. Identification of a Lipid Transfer Protein as a New Allergen From Morus alba Pollen. J Investig Allergol Clin Immunol 2017; 27:263-265. [PMID: 28731414 DOI: 10.18176/jiaci.0162] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- D El-Qutob
- Unit of Allergy, University Hospital of La Plana, Vila-Real, Spain
| | | | - J Cuesta
- Allergy Service, Instituto de Investigaciones Sanitarias Fundación Jiménez Díaz, UAM, Madrid, Spain
| | - A Mir
- Department of Medicine of the Faculty of Medicine of the University of Valencia, Valencia, Spain
| | - A Alberola
- Department of Physiology of the Faculty of Medicine of the University of Valencia, Valencia, Spain
| | - C Pastor-Vargas
- Department of Immunology, Instituto de Investigaciones Sanitarias Fundación Jiménez Díaz, UAM, Madrid, Spain
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Hameed A, Mir A, Nasir M, Ajmal M. Bioinformatics evaluation of NPHS2 deletion mutation associated with congenital nephrotic syndrome in a consanguineous Pakistani family. Clin Genet 2014; 87:599-601. [PMID: 25143137 DOI: 10.1111/cge.12486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 08/18/2014] [Accepted: 08/18/2014] [Indexed: 11/30/2022]
Affiliation(s)
- A Hameed
- Institute of Biomedical and Genetic Engineering (IBGE), Islamabad, Pakistan
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Galmés J, Conesa MÀ, Díaz-Espejo A, Mir A, Perdomo JA, Niinemets U, Flexas J. Rubisco catalytic properties optimized for present and future climatic conditions. Plant Sci 2014; 226:61-70. [PMID: 25113451 DOI: 10.1016/j.plantsci.2014.01.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Revised: 12/06/2013] [Accepted: 01/20/2014] [Indexed: 05/19/2023]
Abstract
Because of its catalytic inefficiencies, Rubisco is the most obvious target for improvement to enhance the photosynthetic capacity of plants. Two hypotheses are tested in the present work: (1) existing Rubiscos have optimal kinetic properties to maximize photosynthetic carbon assimilation in existing higher plants; (2) current knowledge allows proposal of changes to kinetic properties to make Rubiscos more suited to changed conditions in chloroplasts that are likely to occur with climate change. The catalytic mechanism of Rubisco results in higher catalytic rates of carboxylation being associated with decreased affinity for CO2, so that selection for different environments involves a trade-off between these two properties. The simulations performed in this study confirm that the optimality of Rubisco kinetics depends on the species and the environmental conditions. In particular, environmental drivers affecting the CO2 availability for carboxylation (Cc) or directly shifting the photosynthetic limitations between Rubisco and RuBP regeneration determine to what extend Rubisco kinetics are optimally suited to maximize CO2 assimilation rate. In general, modeled values for optimal kinetic reflect the predominant environmental conditions currently encountered by the species in the field. Under future climatic conditions, photosynthetic CO2 assimilation will be limited by RuBP-regeneration, especially in the absence of water stress, the largest rise in [CO2] and the lowest increases in temperature. Under these conditions, the model predicts that optimal Rubisco should have high Sc/o and low kcat(c).
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Affiliation(s)
- J Galmés
- Research Group in Plant Biology under Mediterranean Conditions, Department of Biology, Universitat de les Illes Balears, Carretera de Valldemossa km 7.5, 07122 Palma, Illes Balears, Spain.
| | - M À Conesa
- Research Group in Plant Biology under Mediterranean Conditions, Department of Biology, Universitat de les Illes Balears, Carretera de Valldemossa km 7.5, 07122 Palma, Illes Balears, Spain
| | - A Díaz-Espejo
- Irrigation and Crop Ecophysiology Group, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS, CSIC), Avenida Reina Mercedes 10, 41012 Sevilla, Spain
| | - A Mir
- Computational Biology and Bioinformatics Research Group, Department of Mathematics and Computer Science, Universitat de les Illes Balears, Carretera de Valldemossa km 7.5, 07122 Palma, Illes Balears, Spain
| | - J A Perdomo
- Research Group in Plant Biology under Mediterranean Conditions, Department of Biology, Universitat de les Illes Balears, Carretera de Valldemossa km 7.5, 07122 Palma, Illes Balears, Spain
| | - U Niinemets
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51014, Estonia
| | - J Flexas
- Research Group in Plant Biology under Mediterranean Conditions, Department of Biology, Universitat de les Illes Balears, Carretera de Valldemossa km 7.5, 07122 Palma, Illes Balears, Spain
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Lashkari M, Mir A, Aghili M, Farhan F, Kazemian A, Jaberi R, Babaei M. The Effect of Neoadjuvant Intraluminal Brachytherapy and Chemotherapy After Conventional Neoadjuvant Chemoradiation on Pathologic Response in Patients With Locally Advanced Rectal Cancer: A Phase 2 Nonrandomized Clinical Trial. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1231] [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: 11/16/2022]
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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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Hussain A, Lababidi H, Mir A, AlHamoud A, Al Oheli A, Al Enezi A. Preliminary experience with airway pressure release ventilation on hemodynamics in patients with septic shock in a medical/surgical ICU. Crit Care 2013. [PMCID: PMC3642407 DOI: 10.1186/cc12053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Beaud ML, Rouiller E, Bloch J, Mir A, Schwab M, Wannier T, Schmidlin E. Invasion of lesion territory by regenerating fibers after spinal cord injury in adult macaque monkeys. Neuroscience 2012; 227:271-82. [DOI: 10.1016/j.neuroscience.2012.09.052] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2012] [Revised: 09/21/2012] [Accepted: 09/22/2012] [Indexed: 11/26/2022]
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Basiri A, Mir A, Khazaeli M, Nikkar M. VID-01.01 Laparoscopic Management of Symptomatic Paracalyceal Diverticulum. Urology 2011. [DOI: 10.1016/j.urology.2011.07.464] [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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Hamilton A, Harris G, Lee M, Pieprzyk M, Mir A, Livak K. BioMark dynamic arrays for single-cell gene expression analysis. J Stem Cells Regen Med 2010; 6:87. [PMID: 24693105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Affiliation(s)
- A Hamilton
- Fluidigm, Research & Development, South San Francisco , United States
| | - G Harris
- Fluidigm, Research & Development, South San Francisco , United States
| | - M Lee
- Fluidigm, South San Francisco , United States
| | - M Pieprzyk
- Fluidigm, South San Francisco , United States
| | - A Mir
- Fluidigm, Research & Development, South San Francisco , United States
| | - K Livak
- Fluidigm, Research & Development, South San Francisco , United States
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Pawlik B, Mir A, Iqbal H, Li Y, Nürnberg G, Becker C, Qamar R, Nürnberg P, Wollnik B. A Novel Familial BBS12 Mutation Associated with a Mild Phenotype: Implications for Clinical and Molecular Diagnostic Strategies. Mol Syndromol 2010; 1:27-34. [PMID: 20648243 DOI: 10.1159/000276763] [Citation(s) in RCA: 34] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2009] [Accepted: 11/20/2009] [Indexed: 01/24/2023] Open
Abstract
Bardet-Biedl syndrome (BBS) is an autosomal recessively inherited ciliopathy mainly characterized by rod-cone dystrophy, postaxial polydactyly, obesity, renal tract anomalies, and hypogonadism. To date, 14 BBS genes, BBS1 to BBS14, have been identified, accounting for over 75% of mutations in BBS families. In this study, we present a consanguineous family from Pakistan with postaxial polydactyly and late-onset retinal dysfunction. Adult affected individuals did not show any renal or genital anomalies, obesity, mental retardation or learning difficulties and did thus not fulfill the proposed clinical diagnostic criteria for BBS. We mapped the disease in this family to the BBS12 locus on chromosome 4q27 and identified the novel homozygous p.S701X nonsense mutation in BBS12 in all three affected individuals of this family. We conclude that BBS12 mutations might cause a very mild phenotype, which is clinically not diagnosed by the current diagnostic criteria for BBS. Consequently, we suggest the use of less strict diagnostic criteria in familial BBS families with mild phenotypic expression.
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Affiliation(s)
- B Pawlik
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
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Moreno I, Vicente R, Mir A, León I, Ramos F, Vicente JL, Barbera M. Effects of inhaled nitric oxide on primary graft dysfunction in lung transplantation. Transplant Proc 2010; 41:2210-2. [PMID: 19715875 DOI: 10.1016/j.transproceed.2009.05.019] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
INTRODUCTION AND OBJECTIVES Inhaled nitric oxide (iNO) is a gaseous drug with known properties of specific pulmonary vasodilation and improved oxygenation. In some clinical trials on lung transplantation (LT) in animals, it has been demonstrated to reduce primary graft dysfunction (PGD) by limiting neutrophil adhesion and the inflammatory cascade. Our objective was to assess whether iNO showed this immunomodulatory effect by determining interleukin (IL)-6, -8, and -10 levels in blood and bronchoalveolar lavage (BAL) in LT patients, and its relationship with PGD incidence. MATERIALS AND METHODS Forty-nine LT patients were recruited and included in the iNO or in the control group. Patients in the first group were given iNO (10 ppm) from the start of LT to 48 hours afterward. BAL and blood samples were taken preimplantation and at 12, 24, and 48 hours after graft reperfusion. RESULTS The iNO group displayed a significantly lower incidence (P < .035) of PGD (17.2%) than the control group (45%). Significant differences (P < .05) were also observed in the iNO group with lower levels of IL-6 (in blood at 12 hours), IL-8 (in blood and BAL at 12 and 24 hours), and IL-10 (in blood at 12 and 24 hours and BAL at 24 hours). CONCLUSIONS PGD is associated with the development of an inflammatory process that is reduced by giving iNO to lung recipients. In our series, the iNO group displayed significantly lower content of IL-6, IL-8, and IL-10 in the majority of samples at 12 and 24 hours compared with the control group.
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Affiliation(s)
- I Moreno
- Department of Anaesthesiology, Hospital Universitario La Fe, Valencia, Spain.
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Mir A, Hjelle B, Ye C, Panganiban A. P.009 Cap snatching revisited: viral storage of cellular 5′ mRNA caps in P bodies. J Clin Virol 2009. [DOI: 10.1016/s1386-6532(08)70072-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Rausch M, Tofts PS, Lervik P, Walmsley AR, Mir A, Schubart A, Seabrook T. Characterization of white matter damage in animal models of multiple sclerosis by magnetization transfer ratio and quantitative mapping of the apparent bound proton fraction f*. Mult Scler 2009; 15:16-27. [DOI: 10.1177/1352458508096006] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [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
Quantitative magnetization transfer magnetic resonance imaging (qMT-MRI) can be used to improve detection of white matter tissue damage in multiple sclerosis (MS) and animal models thereof. To study the correlation between MT parameters and tissue damage, the magnetization transfer ratio (MTR), the parameter f* (closely related to the bound proton fraction) and the bound proton transverse relaxation time T2B of lesions in a model of focal experimental autoimmune encephalomyelitis (EAE) were measured on a 7T animal scanner and data were compared with histological markers indicative for demyelination, axonal density, and tissue damage. A clear spatial correspondence was observed between reduced values of MTR and demyelination in this animal model. We observed two different levels of MTR and f* reduction for these lesions. One was characterized by a pronounced demyelination and the other corresponded to a more severe loss of the cellular matrix. Changes in f* were generally more pronounced than those of MTR in areas of demyelination. Moreover, a reduction of f* was already observed for tissue where MTR was virtually normal. No changes in T2B were observed for the lesions. We conclude that MTR and qMT mapping are efficient and reliable readouts for studying demyelination in animal models of MS, and that the analysis of regional f* might be even superior to the analysis of MTR values. Therefore, quantitative mapping of f* from human brains might also improve the detection of white matter damage in MS.
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Affiliation(s)
- M Rausch
- Novartis Institutes for Biomedical Research, Basel, Switzerland
| | - PS Tofts
- Clinical Imaging Sciences Centre, University of Sussex, Falmer, Brighton, BN1 9RR, UK
| | - P Lervik
- Novartis Institutes for Biomedical Research, Basel, Switzerland
| | - AR Walmsley
- Novartis Institutes for Biomedical Research, Basel, Switzerland
| | - A Mir
- Novartis Institutes for Biomedical Research, Basel, Switzerland
| | - A Schubart
- Novartis Institutes for Biomedical Research, Basel, Switzerland
| | - T Seabrook
- Novartis Institutes for Biomedical Research, Basel, Switzerland
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Malik FA, Ashraf S, Kayani MA, Jiang WG, Mir A, Ansar M, Baloch IA, Sadiq R. Contribution of BRCA1 germline mutation in patients with sporadic breast cancer. Int Semin Surg Oncol 2008; 5:21. [PMID: 18759965 PMCID: PMC2538523 DOI: 10.1186/1477-7800-5-21] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2008] [Accepted: 08/29/2008] [Indexed: 11/10/2022]
Abstract
Hereditary artifacts in BRCA1 gene have a significant contributory role in familial cases of breast cancer. However, its germline mutational penetrance in sporadic breast cancer cases with respect to Pakistani population has not yet been very well defined. This study was designed to assess the contributory role of germline mutations of this gene in sporadic cases of breast cancer. 150 cases of unilateral breast cancer patients, with no prior family history of breast cancer and no other disorders or diseases in general with age range 35–75 yrs, were included in this study. Mutational analysis for hot spots on Exon 2, 3 and 13 of BRCA1 was done by using Single Strand Conformational Polymorphism (SSCP). Sequence analysis revealed five variants (missense) and one novel splice site mutation at exon 13. No germline mutation was observed on the remaining exons with respect sporadic breast cancer cases in Pakistani population. A vast majority of breast cancer cases are sporadic; the present study may be helpful for designing a better genetic screening tool for germline BRCA mutations in sporadic breast cancer patients of Pakistani population. Further studies involving a screening of entire coding region of BRCA1 is required to explore the merits of genetic diagnosis and counseling in breast cancer patients.
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Affiliation(s)
- Fraz A Malik
- Cancer Genetics Lab; Department of Biosciences, COMSATS Institute of Information Technology, Islamabad, Pakistan.
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23
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Wannier-Morino P, Schmidlin E, Freund P, Belhaj-Saif A, Bloch J, Mir A, Schwab M, Rouiller E, Wannier T. Fate of rubrospinal neurons after unilateral section of the cervical spinal cord in adult macaque monkeys: Effects of an antibody treatment neutralizing Nogo-A. Brain Res 2008; 1217:96-109. [DOI: 10.1016/j.brainres.2007.11.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2007] [Accepted: 11/02/2007] [Indexed: 10/22/2022]
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24
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Pascual AM, Martínez-Bisbal MC, Boscá I, Valero C, Coret F, Martínez-Granados B, Marti-Bonmati L, Mir A, Celda B, Casanova B. Axonal loss is progressive and partly dissociated from lesion load in early multiple sclerosis. Neurology 2007; 69:63-7. [PMID: 17606882 DOI: 10.1212/01.wnl.0000265054.08610.12] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [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: 11/15/2022] Open
Abstract
OBJECTIVE To assess the relationship between the spectroscopically measured axonal damage in the normal-appearing white matter of the brainstem, the total brain T2-hyperintense lesion volume (T2LV), and disability in patients with early relapsing-remitting multiple sclerosis (RRMS). METHODS Forty-three RRMS patients and 10 sex- and age-matched healthy controls were prospectively studied for 2 years. T2-weighted magnetic resonance (MR) images and proton MR spectroscopy were acquired at the time of recruitment and at year 2. Brainstem was considered, where large tracts join together, as a suitable region to detect early axonal damage. The T2LV was calculated with a semiautomatic program; N-acetylaspartate (NAA), creatine (Cr), and choline (Cho) resonances areas were integrated with the jMRUI program, and the ratios were calculated for the sum of the volume elements represented at brainstem. RESULTS The basal NAA/Cho ratio was significantly decreased in patients compared with controls. After 2-year follow-up, there was a decrease in the NAA/Cho (-9%; p = 0.002) and NAA/Cr (-13%; p = 0.001) ratios, and an increase in the T2LV (19%; p = 0.043) in multiple sclerosis patients, whereas control subjects had no significant metabolic changes. Significant NAA/Cr ratio decreases were observed in both patients, with and without relapses, whereas T2LV only increased in patients with relapses. The final Expanded Disability Status Scale (EDSS) score correlated with T2LV at baseline, but no significant correlations were found between metabolic values, T2LV change, or EDSS score over the study period. CONCLUSIONS Our data reveal an early and progressive axonal damage in relapsing-remitting multiple sclerosis. Axonal loss and T2 lesion volume seem to be at least partly dissociated processes in early stages of the disease.
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Affiliation(s)
- A M Pascual
- Department of Neurology, Hospital Universitario La Fe, Avda. Campanar 21, at Valencia. E. 46009, Valencia, Spain.
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25
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Abstract
Strongyloides stercoralis infection is characterized by the production of IgE and eosinophils in peripheral blood. Experimental studies have demonstrated that eosinophils play an important role in protection against Strongyloides stercoralis, but the mechanisms regulating eosinophils are not known. In this study we have focused on analysing the molecules that selectively regulate eosinophil migration, namely eotaxin and interleukin-5 (IL-5), using an enzyme-linked immunosorbent assay in patients with strongyloidiasis. Serum expression of eotaxin and IL-5 were significantly increased in patients compared with the control group. This rise suggests that selective mediators of the eosinophil can have a role in immunity against S. stercoralis in human infection.
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Affiliation(s)
- A Mir
- Department of Medicine, University of Valencia, Spain.
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26
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Arilla MC, González-Rioja R, Ibarrola I, Mir A, Monteseirín J, Conde J, Martínez A, Asturias JA. A sensitive monoclonal antibody-based enzyme-linked immunosorbent assay to quantify Parietaria judaica major allergens, Par j 1 and Par j 2. Clin Exp Allergy 2006; 36:87-93. [PMID: 16393270 DOI: 10.1111/j.1365-2222.2006.02406.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Parietaria pollen is one of the most important causes of pollinosis in Mediterranean countries. Parietaria judaica pollen extract presents two major allergens, Par j 1 and Par j 2, that belong to the lipid transfer protein family. OBJECTIVE To develop an ELISA for quantification of both major allergens of P. judaica pollen extracts, and to assert correlation of these allergens content with the allergenic activity of extracts. METHODS Natural Par j 1-Par j 2 allergens were purified by gel filtration, ion exchange, and affinity chromatography and identified by mass spectrometry. Rabbit antisera were obtained using this protein preparation as antigen and used for immunoaffinity purification of nPar j 1-Par j 2. BALB/c mice were immunized with the immunopurified nPar j 1-Par j 2 and after fusion and screening by direct ELISA, 5D4 monoclonal antibody was selected as capture antibody to develop a quantitative two-site ELISA. Bound proteins were detected by a biotinylated Par j 1-Par j 2-specific polyclonal antibody. RESULTS The optimized ELISA was developed from 25 to 8000 pg/mL of purified Par j 1-Par j 2, and a linear portion of 200-1000 pg/mL. The intraassay and interassay coefficients of variation were lower than 7% and 14% respectively. The assay was very sensitive and specific as it had a detection limit of 25 pg/mL and did not detect reactivity with the same family plants, as Urtica. Par j 1-Par j 2 allergens content was measured in 14 P. judaica and two P. officinalis pollen extracts showing a significant correlation with their allergenic activity measured by enzyme allergosorbent test inhibition. CONCLUSIONS The results proved the usefulness of the two-sandwich ELISA for the standardization of Parietaria pollen extracts intended for clinical use, because of its good correlation with allergenic potency.
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Affiliation(s)
- M C Arilla
- Research and Development Department, Bial-Arístegui, Bilbao, Spain
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27
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Arilla MC, Ibarrola I, Mir A, Monteseirín J, Conde J, Martínez A, Asturias JA. Development of a Sandwich-Type ELISA for Measuring Pla a 1, the Major Allergen of Platanus acerifolia Pollen. Int Arch Allergy Immunol 2005; 138:127-33. [PMID: 16179793 DOI: 10.1159/000088434] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2005] [Accepted: 06/06/2005] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Platanus acerifolia is an important cause of pollinosis in Western European cities. Pla a 1, a nonglycosylated 18-kDa protein with a prevalence of 80%, is a major allergen in P. acerifolia pollen extracts. Our aim was to develop a Pla a 1-specific ELISA to quantify this protein in allergenic extracts and preparations for clinical use. METHODS Pla a 1 was purified by cation exchange at pH 7.0, gel filtration, and anion exchange chromatography at pH 10.0. Monoclonal (mAb) and polyclonal antibodies were obtained by immunizing mice and rabbits with nPla a 1. One (5C1) of the 13 mAb obtained was used as capture antibody at 5 mug/ml and biotin-labeled specific polyclonal antiserum at 0.63 microg/ml served for detection. RESULTS The prevalence of Pla a 1-specific IgE to purified Pla a 1 among 47 P. acerifolia-allergic patients was 79%. The Pla a 1-ELISA developed has a linear range of 3-25 ng/ml, high sensitivity with a detection limit of 0.5 ng/ml and is highly specific as none of the 24 pollen, mite, mold, and plant food extracts tested gave positive results. The assay could quantify Pla a 1-like proteins in other planetree pollen extracts. A good correlation was obtained between Pla a 1 content of 11 P. acerifolia pollen extracts (average content 0.69% of the total protein) and their IgE-binding activity. CONCLUSIONS The described two-site sandwich ELISA to measure Pla a 1 is useful for standardization of planetree pollen extracts intended for clinical use.
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Affiliation(s)
- M C Arilla
- Research and Development Department, Bial-Arístegui, Bilbao, Spain
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28
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Roca B, Mir A, Ibañez M. Air apple-core-like narrowing of the dilated transverse colon. JBR-BTR 2004; 87:318. [PMID: 15679035] [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] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Affiliation(s)
- B Roca
- Medicine and Surgery Departments, Hospital General of Castellon, Castellon, Spain
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29
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Ibarrola I, Sanz ML, Gamboa PM, Mir A, Benahmed D, Ferrer A, Arilla MC, Martínez A, Asturias JA. Biological characterization of glutaraldehyde-modified Parietaria judaica pollen extracts. Clin Exp Allergy 2004; 34:303-9. [PMID: 14987312 DOI: 10.1111/j.1365-2222.2004.01859.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [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
BACKGROUND Allergoids are widely used in specific immunotherapy (SIT) for the treatment of IgE-mediated allergic diseases, but all techniques for standardization of conventional allergic extracts may not be appropriate for standardization of a glutaraldehyde (GA)-modified extract because of the unique characteristics of these extracts. OBJECTIVE To assess an accurate methodology for standardization of chemically modified extracts. METHODS GA-modified extracts from Parietaria judaica pollen were purified by diafiltration. Biochemical properties were investigated by determination of amino groups, chromatography, and SDS-PAGE. The IgE-binding activity was determined by skin prick test, enzyme allergosorbent test inhibition, basophil activation, and histamine release tests. Peripheral blood mononuclear cells (PBMCs) from P. judaica pollen-allergic subjects were stimulated with either native or allergoid extracts, and proliferation was measured. RESULTS Biochemical data indicated a high degree of allergen polymerization resulting in extract components higher than 100 kDa. IgE-binding activity, both in vivo and in vitro, was reduced by more than 99.8%. Both allergen and allergoid induced PBMC proliferation and synthesis of blocking IgG antibodies at similar rates. Moreover, no evidence of introduction of new determinants by chemical modification was found. CONCLUSIONS The preparation of GA-modified extracts by diafiltration is faster and more reliable than previous chromatographic methods. These modified extracts have drastically reduced their allergenicity while maintaining their immunogenicity, and therefore they can be used in safer and shortened schedules of SIT.
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Affiliation(s)
- I Ibarrola
- Departamento de Investigación y Desarrollo, Bial-Arístegui, Bilbao, Spain
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Ahanger AG, Shabir S, Dar AM, Lone GN, Bhatt MA, Mir A, Wani RA. Early operative mortality after surgical treatment of bronchogenic carcinoma. Indian J Thorac Cardiovasc Surg 2003. [DOI: 10.1007/s12055-003-0013-4] [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] Open
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31
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Zaidi A, Gainer JL, Carta G, Mrani A, Kadiri T, Belarbi Y, Mir A. Esterification of fatty acids using nylon-immobilized lipase in n-hexane: kinetic parameters and chain-length effects. J Biotechnol 2002; 93:209-16. [PMID: 11755985 DOI: 10.1016/s0168-1656(01)00401-1] [Citation(s) in RCA: 114] [Impact Index Per Article: 5.2] [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: 11/15/2022]
Abstract
The esterification of long-chain fatty acids in n-hexane catalyzed by nylon-immobilized lipase from Candida rugosa has been investigated. Butyl oleate (22 carbon atoms), oleyl butyrate (22 carbon atoms) and oleyl oleate (36 carbon atoms) were produced at maximum reaction rates of approximately equal to 60 mmol h(-1) g(-1) immobilized enzyme when the substrates were present in equimolar proportions at an initial concentration of 0.6 mol l(-1). The observed kinetic behavior of all the esterification reactions is found to follow a ping-pong bi-bi mechanism with competitive inhibition by both substrates. The effect of the chain-length of the fatty acids and the alcohols could be correlated to some mechanistic models, in accordance with the calculated kinetic parameters.
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Affiliation(s)
- A Zaidi
- Department of Chemical Engineering, Center for Bioprocess Development, University of Virginia, Charlottesville, VA 22903-2442, USA.
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Ramirez-Tortosa MC, Urbano G, López-Jurado M, Nestares T, Gomez MC, Mir A, Ros E, Mataix J, Gil A. Extra-virgin olive oil increases the resistance of LDL to oxidation more than refined olive oil in free-living men with peripheral vascular disease. J Nutr 1999; 129:2177-83. [PMID: 10573546 DOI: 10.1093/jn/129.12.2177] [Citation(s) in RCA: 108] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Patients with peripheral vascular disease (Fontaine stage II) are characterized by ischemia of the lower extremities, atherosclerosis and alteration of blood coagulation and fibrinolysis. A randomized, two-period, crossover design was used to compare the effects of extra-virgin (VO) and refined olive (RO) oils on plasma lipids and lipoprotein composition and LDL oxidation susceptibility in free-living men with peripheral vascular disease. The oils differed in their antioxidant profile (alpha-tocopherol: 300 vs. 200 mg/kg; phenolic compounds 800 vs. 60) and concentration but not in their fatty acid composition. Subjects were randomly assigned to two groups. The first group (n = 12) received VO with which to freely cook all meals for 3 mo, followed by a 3-mo wash-out period; they then received RO for the final 3 mo. The second group (n = 12) consumed the oils in the opposite order. Energy, fat, polyunsaturated fatty acids (PUFA) and alpha-tocopherol intakes were not different when patients consumed the two oils. Profiles of the major fatty acids in plasma and LDL were not different after consumption of VO and RO. The slope of the line for LDL oxidation vs. the line for copper concentration was significantly higher after the intake of RO than after the intake of VO. Total LDL taken up by macrophages was significantly greater when the men consumed RO rather than VO. We suggest that antioxidants present in VO may protect LDL against oxidation more than does RO in men with peripheral vascular disease.
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Affiliation(s)
- M C Ramirez-Tortosa
- Institute of Nutrition and Food Technology, Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, University of Granada, Spain
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Abstract
Peripheral T-lymphocytes were analyzed in three groups of people: (1) individuals with current liver hydatid disease (hydatid patients, n = 20), (2) persons who had undergone surgical cyst removal at least 2 years previously (recovered patients, n = 9), and (3) a control group of healthy volunteers (uninfected controls, n = 13). Group 1 was subdivided according to cyst status, relapse of disease, and the presence or absence of symptoms. Percentages of lymphocytes expressing CD3, CD4, CD8, CD56, CD25, CD45RA, CD45RO, and HLA-DR were determined. Symptomatic patients had proportionally fewer CD3+ CD8 + lymphocytes than the control group (P=0.038). Hydatid patients with active cysts had proportionally more natural killer cells (CD56 + CD8-) than the control group (P = 0.028).
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Affiliation(s)
- A Hernández
- Unidad Central de Investigación, Facultad de Medicina, Universitat de Valencia, Hospital Clínico Universitario, Spain
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Ramírez-Tortosa MC, Urbano G, López-Jurado M, Nestares T, Gomez MC, González J, Mir A, Ros E, Mataix J, Gil A. Lifestyle changes in free-living patients with peripheral vascular disease (Fontaine stage II) related to plasma and LDL lipid composition: a 15 month follow-up study. Clin Nutr 1999; 18:281-9. [PMID: 10601535 DOI: 10.1016/s0261-5614(98)80025-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Peripheral vascular disease (PVD) is characterized by arteriosclerosis and lower extremity ischemia which cause intermittent claudication. Patients grouped in the Fontaine stage II have more than 75% organic stenosis in their large coronary arteries and exhibit a number of alterations in blood coagulation and plasma lipids. The aim of this study was to evaluate an intervention program of lifestyle habits including dietary recommendations, moderate exercise and decreased smoking in a population of patients with PVD for a period of 15 months, with respect to plasma-lipid and lipoprotein composition as well as LDL susceptibility to peroxidation. These parameters are well known risk indicators of arteriosclerosis and coronary heart disease. A total 13 subjects diagnosed with PVD (Fontaine stage II) were selected, while a healthy age-matched group (n=20) was used as a reference. This study design was an uncontrolled trial of lifestyle interventions. The group of patients was examined at 0, 3, 6, 9, 12 and 15 months. Patients smoking one or more packets of cigarettes per day at the beginning of the study (54.2%) decreased smoking by as much as 7.7% 15 months later. In addition, physical activity intensified significantly (walking > 1 km: 13.1-77%) and treadmill running increased over the study period while the energy intake decreased by 10%. The percentage of saturated fat in the diet decreased by 10% while the intake of polyunsaturated fat rose, and monounsaturated-fat intake showed a parallel trend to increase; the average intake of cholesterol also fell by 10% and plasma triglycerides and HDL-cholesterol showed a trend to decrease and increase, respectively. No permanent changes in LDL lipid fractions for patients were detected during the follow-up period and no differences between patients and the age-matched reference group were found. The macrophage uptake of plasma-oxidized LDL was significantly higher in patients than in the reference group and no differences due to the intervention period were detected. In conclusion, the education in lifestyle and nutritional habits of patients with PVD led to reduced energy intake parallel with augmented physical activity as well to a fall in plasma triglycerides and a rise in HDL-cholesterol, which are good indicators of a reduced risk of vascular and myocardial complications.
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Ramírez-Tortosa MC, Suárez A, Gómez MC, Mir A, Ros E, Mataix J, Gil A. Effect of extra-virgin olive oil and fish-oil supplementation on plasma lipids and susceptibility of low-density lipoprotein to oxidative alteration in free-living spanish male patients with peripheral vascular disease. Clin Nutr 1999; 18:167-74. [PMID: 10451477 DOI: 10.1016/s0261-5614(99)80007-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [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: 10/26/2022]
Abstract
The aim of this study was to analyse the in vivo effect of a diet rich in extra-virgin olive oil and a fish-oil supplement on plasma and lipoprotein fatty-acid composition and on LDL susceptibility to oxidative modification in free-living Spanish male patients with peripheral vascular disease. A total of 12 patients were included in the experimental group which received extra virgin olive oil and a fish oil supplement (group OF). On the other hand, 13 patients which had refined olive oil as the main visible fat were considered as Control group. Plasma triglycerides decreased significantly after three months of dietary intervention. The LDL and plasma fatty-acid pattern in the group OF was characterized by a significant increase in n-3 polyunsaturated fatty acids, mainly 20:5 n-3 and 22:6 n-3. The slopes of LDL oxidative susceptibility were similar between baseline and endpoint values in both groups. However, the uptake of oxidized LDL by macrophages was significantly reduced in OF patients in comparison with the Control group. In conclusion, the daily intake of about 40 g/d of extra-virgin olive oil in combination with a daily supplement of 16 g of fish oil for 3 months in patients with peripheral vascular disease leads to a plasma-lipid profile less atherogenic than in patients having refined olive oil as the main visible food fat. The simultaneous consumption of alpha-tocopherol and natural antioxidants provided by extra-virgin olive oil seems to have a protective effect on the LDL susceptibility to oxidative modifications in spite of a higher proportion of n-3 polyunsaturated fatty acids.
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Affiliation(s)
- M C Ramírez-Tortosa
- Institute of Nutrition and Food Technology, University of Granada, Granada, Spain
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Lanuza MD, Carbajal JA, Villar J, Mir A, Borrás R. Soluble-protein and antigenic heterogeneity in axenic Blastocystis hominis isolates: pathogenic implications. Parasitol Res 1999; 85:93-7. [PMID: 9934956 DOI: 10.1007/s004360050515] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [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: 12/20/2022]
Abstract
The protein profile and the antigenic cross-reactivity of 18 axenic isolates of Blastocystis hominis obtained from symptomatic patients with chronic diarrhea (14 isolates) showing no evidence of parasitic etiology and from patients with acute diarrhea attributable in 2 cases to Salmonella spp. were analyzed. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis of soluble proteins showed the existence of a common profile composed of 31 bands, with molecular weights ranging between 24 and >200 kDa, and minor differences in the proteins of 149, 118, 106, 50, 48, 47, and 30 kDa. These differences allowed us to classify the strains into three related patterns (I-III). In an indirect immunofluorescence assay, all strains were serologically identical, but two related antigenic groups (1 and 2) were found in double-immunodiffusion and Western-blot studies. The isolates of protein patterns I and II belonging to antigenic group 1 were isolated from patients with chronic diarrhea, whereas the four isolates from patients with acute diarrhea were clustered in protein pattern III and in antigenic group 2. These results confirm the protein and antigenic heterogeneity of B. hominis and the existence of demes with different pathogenic roles.
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Affiliation(s)
- M D Lanuza
- Departamento de Microbiología, Facultad de Medicina, Valencia, Spain
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Turrión M, Alonso-Vante N, Tributsch H, Mir A, Salvador P. The scanning microscope for semiconductor characterization (SMSC): electrolyte electroreflectance and photovoltage imaging study of the electrochemical activation of RuS 2 photoelectrodes for oxygen evolution. J Electroanal Chem (Lausanne) 1998. [DOI: 10.1016/s0022-0728(98)00317-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Beckmann N, Bruttel K, Schuurman H, Mir A. Effects of Sandimmune neoral on collagen-induced arthritis in DA rats: characterization by high resolution three-dimensional magnetic resonance imaging and by histology. J Magn Reson 1998; 131:8-16. [PMID: 9533900 DOI: 10.1006/jmre.1997.1316] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
In the present work the time course of collagen-induced arthritis and the effect of Sandimmune Neoral in this model of arthritis were followed in the rat over an extended period of time (70 days) using high resolution three-dimensional (3D) magnetic resonance imaging (MRI). High resolution 3D gradient-echo (TR = 100 ms; TE = 3.8 ms) images with a voxel size of 94 x 81 x 60 micron3 were acquired from the hind paw of DA rats (n = 21) at various time points after injection of type II bovine collagen into the tail. Eleven rats were treated with Neoral (15 mg/kg/day p.o. together with vehicle) for 42 days starting at day 14 after collagen injection. The remaining controls received vehicle. Pathomorphological changes associated with the collagen-induced arthritic process, e.g., increase of joint space and cartilage and bone erosion, could be observed in vivo in the control group. In contrast, no changes in the joint architecture were detected in Neoral-treated animals. Indeed, Neoral showed strong anti-inflammatory effects and marked protection against cartilage and bone destruction in this model. Qualitative information derived from the MR images correlated significantly with histological findings.
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Affiliation(s)
- N Beckmann
- Core Technologies, Novartis Pharma Inc., Basel, CH-4002, Switzerland
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Buttini M, Mir A, Appel K, Wiederhold KH, Limonta S, Gebicke-Haerter PJ, Boddeke HW. Lipopolysaccharide induces expression of tumour necrosis factor alpha in rat brain: inhibition by methylprednisolone and by rolipram. Br J Pharmacol 1997; 122:1483-9. [PMID: 9421299 PMCID: PMC1565066 DOI: 10.1038/sj.bjp.0701502] [Citation(s) in RCA: 79] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
1. We have investigated the effects of the phosphodiesterase (PDE) type IV inhibitor rolipram and of the glucocorticoid methylprednisolone on the induction of tumour necrosis factor alpha (TNF-alpha) mRNA and protein in brains of rats after peripheral administration of lipopolysaccharide (LPS). 2. After intravenous administration of LPS, a similar time-dependent induction of both TNF-alpha mRNA and protein was observed in rat brain. Peak mRNA and protein levels were found 7 h after administration of LPS. 3. In situ hybridization experiments with a specific antisense TNF-alpha riboprobe suggested that the cells responsible for TNF-alpha production in the brain were microglia. 4. Intraperitoneal administration of methylprednisolone inhibited the induction of TNF-alpha protein in a dose-dependent manner. A maximal inhibition of TNF-alpha protein production by 42.9+/-10.2% was observed at a dose regimen consisting of two injections of each 30 mg kg(-1) methylprednisolone. 5. Intraperitoneal administration of rolipram also inhibited the induction of TNF-alpha protein in a dose-dependent manner. The maximal inhibition of TNF-alpha protein production was 96.1+/-12.2% and was observed at a dose regimen of three separate injections of each 3 mg kg(-1) rolipram. 6. In situ hybridization experiments showed that the level of TNF-alpha mRNA induced in rat brain by LPS challenge was reduced by intraperitoneal administration of methylprednisolone (2 x 15 mg kg(-1)) and of rolipram (3 x 3 mg kg(-1)). 7. We suggest that peripheral administration of LPS induces a time-dependent expression of TNF-alpha in rat brain, presumably in microglial cells, and that methylprednisolone and rolipram inhibit LPS-induced expression of TNF-alpha in these cells via a decrease of TNF-alpha mRNA stability and/or TNF-alpha gene transcription.
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Affiliation(s)
- M Buttini
- Novartis Ltd, Preclinical Research, Basel
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Mir A, Gillet M, Portmann L. [Solitary nodule of the thyroid: diagnostic tests and surgical treatment]. Rev Med Suisse Romande 1997; 117:353-5. [PMID: 9281036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Chaparro A, Salvador P, Mir A. The scanning microscope for semiconductor characterization: photocurrent, photovoltage and electrolyte electroreflectance imaging at the n-MoSe2/I− interface. J Electroanal Chem (Lausanne) 1997. [DOI: 10.1016/s0022-0728(96)04903-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Chaparro A, Salvador P, Mir A. The scanning microscope for semiconductor characterization (SMSC): Comparative study of the influence of surface defects on the photoelectrochemical behavior of n-WSe2 and n-MoSe2 layered compounds. J Electroanal Chem (Lausanne) 1996. [DOI: 10.1016/0022-0728(96)04571-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Salvador P, Chaparro AM, Mir A. Digital Imaging of the Effect of Photoetching on the Photoresponse of n-Type Tungsten Diselenide and Molybdenum Diselenide Single Crystal Electrodes. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp952001x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- P. Salvador
- Instituto de Catálisis y Petroleoquímica, CSIC, Camino de Valdelatas s/n. Cantoblanco, 28049 Madrid, Spain
| | - A. M. Chaparro
- Instituto de Catálisis y Petroleoquímica, CSIC, Camino de Valdelatas s/n. Cantoblanco, 28049 Madrid, Spain
| | - A. Mir
- Dept. de Matemàtiques i Informàtica, UIB, 07071 Palma (Balears), Spain
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Thompson GR, Maher VM, Matthews S, Kitano Y, Neuwirth C, Shortt MB, Davies G, Rees A, Mir A, Prescott RJ. Familial Hypercholesterolaemia Regression Study: a randomised trial of low-density-lipoprotein apheresis. Lancet 1995; 345:811-6. [PMID: 7898227 DOI: 10.1016/s0140-6736(95)92961-4] [Citation(s) in RCA: 192] [Impact Index Per Article: 6.6] [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: 01/27/2023]
Abstract
Low-density-lipoprotein (LDL) apheresis has the theoretical advantage over anion-exchange resins and hydroxymethylglutaryl coenzyme A inhibitors of decreasing lipoprotein(a) as well as LDL. To confirm this advantage, patients with heterozygous familial hypercholesterolaemia and coronary artery disease were randomised to receive LDL apheresis fortnightly (with disposable dextran sulphate/cellulose columns) plus simvastatin 40 mg daily, or colestipol 20 g plus simvastatin 40 mg daily. Quantitative coronary angiography was repeated after a mean of 2.1 years in 20 patients undergoing apheresis and in 19 on combination drug therapy. Changes in serum lipoproteins were similar in both groups apart from greater lowering by apheresis of LDL cholesterol (3.2 vs 3.4 mmol/L in drug group, p = 0.03) and lipoprotein(a) (geometric means 14 vs 21 mg/dL, p = 0.03). There were no significant differences in primary angiographic endpoints per patient but lesion-based and segment-based secondary endpoints were biased in favour of the drug group (change in minimum lumen diameter of lesions 0.07 vs -0.004 mm, p = 0.046; change in mean lumen diameter of segments 0.02 vs -0.06 mm, p = 0.01). None of the angiographic changes correlated with lipoprotein(a) concentrations. Per patient changes in % diameter stenosis and minimum lumen diameter in the two groups were as or more favourable than those observed in five published trials that assessed lipid-lowering drug therapy by quantitative coronary angiography. Although LDL apheresis combined with simvastatin was more effective than colestipol plus simvastatin in reducing LDL cholesterol and lipoprotein(a), it was less beneficial in influencing coronary atherosclerosis and should be reserved for patients unresponsive to drugs. Decreasing lipoprotein(a) seems to be unnecessary if LDL cholesterol is reduced to 3.4 mmol/L or less.
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Affiliation(s)
- G R Thompson
- Department of Cardiology, Hammersmith Hospital, London
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Beckmann N, Bruttel K, Mir A, Rudin M. Noninvasive 3D MR microscopy as a tool in pharmacological research: application to a model of rheumatoid arthritis. Magn Reson Imaging 1995; 13:1013-7. [PMID: 8583865 DOI: 10.1016/0730-725x(95)00050-q] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [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: 01/31/2023]
Abstract
Magnetic resonance microscopy (MRM) was applied to noninvasively image skeletal structures in the hindpaw of the live rat to characterize the progression of a heterologous type II collagen-induced arthritic process. Using a resonator, with optimized filling factor, three-dimensional (3D) gradient-echo images with voxel dimensions of 94 x 81 x 60 micron3 were acquired in 54.6 min. Three-dimensional MRM reduces the slice positioning problem, which is critical in longitudinal studies. Moreover, due to the much smaller slice thickness of images derived from 3D data sets, partial volume effects are less pronounced than in corresponding 2D images. Distinct pathomorphological changes associated with the collagen-induced arthritic process (e.g., increase of metatarsophalangeal joint space, and bone and cartilage erosion) could thus be analyzed under in vivo conditions.
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Affiliation(s)
- N Beckmann
- Biophysics Unit, Sandoz Pharma Ltd, Basle, Switzerland
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Mosimann F, Schneider R, Mir A, Gillet M. Erosion of the duodenum by a biliary T-tube: an unusual complication of liver transplantation. Transplant Proc 1994; 26:3550-1. [PMID: 7998272] [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: 01/28/2023]
Affiliation(s)
- F Mosimann
- Department of Surgery, University Hospital, Lausanne, Switzerland
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Bayonove JF, Mir A, Burg M. Effects of long duration space flight on rice seed (or embryo) radiation sensitivity and element microlocalizations. Adv Space Res 1994; 14:109-113. [PMID: 11539942 DOI: 10.1016/0273-1177(94)90458-8] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
In long duration space experiments Rice caryopses and embryos, which are able to remain alive 10 years (or more) and tolerate extreme physical conditions (temperature, few water content) during irradiation and post-irradiation storage, were used (8, 40, 201 and 457 days on board of Salyut 7, 2107 days on LDEF). In certain experiments (Salyut 7), samples were irradiated either before or after the flight. Effects of the flight and radiosensitivity were observed in Rice seedlings cultivated in in vitro conditions. Statistical results indicate an increase in radiosensitivity when irradiations occur before the flight. Microanalyses were made in different parts of one caryopsis and of one embryo, and the results compared with those of control samples. With caryopses and embryos of the same Rice varieties, but from LDEF, we made the same kinds of experiments to compare results.
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Affiliation(s)
- J F Bayonove
- Biologie Vegetale, Universite Montpellier II, France
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Pellicer A, Ballester MJ, Serrano MD, Mir A, Serra-Serra V, Remohi J, Bonilla-Musoles FM. Aetiological factors involved in the low response to gonadotrophins in infertile women with normal basal serum follicle stimulating hormone levels. Hum Reprod 1994; 9:806-11. [PMID: 7929726 DOI: 10.1093/oxfordjournals.humrep.a138600] [Citation(s) in RCA: 51] [Impact Index Per Article: 1.7] [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: 01/27/2023] Open
Abstract
This study was designed to investigate possible aetiological factors involved in the low response to gonadotrophins in women with normal basal serum follicle stimulating hormone (FSH) concentrations, stimulated for assisted reproduction. Nine of these patients with normal basal serum FSH and 22 normal controls (five of whom had had a normal response to previous gonadotrophin stimulation) were prospectively subjected to: (i) transvaginal pulsed colour Doppler ultrasound evaluation of the vessels surrounding the dominant follicle for blood flow impedance analysis, (ii) the clonidine test to explore the ability of the pituitary to release growth hormone, and (iii) detection of anti-granulosa cell auto-antibodies in blood using an enzyme-linked immunosorbent assay (ELISA). The pulsatility and resistance indices (PI, RI) were significantly (P < 0.01) higher in the women with low responses as compared to the controls on days -1 and 0 (day 0 = ovulation). Seven out of the nine low responders were out of the range calculated for normal values after evaluation of the controls. A significant (P < 0.05) decrease in the secretion of growth hormone 60-90 min after clonidine ingestion was observed in the low responders as compared to five controls with previous normal response to ovarian stimulation. Six out of the nine low responders showed a negative clonidine test. No increase in anti-granulosa cell auto-antibodies was observed in the low responders as compared to the controls, including normal responders. In conclusion, an abnormal follicular blood flow impedance in the natural cycle may be related to low responses to gonadotrophins in patients with normal serum FSH concentrations.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- A Pellicer
- Instituto Valenciano de Infertilidad, Valencia University School of Medicine, Spain
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Mir A, Balsalobre B. Inhibition of complement-dependent phagocytosis by autoantibodies against C3b-receptor (CR1) in a case of systemic lupus erythematosus. J Intern Med 1994; 235:284-5. [PMID: 8120529 DOI: 10.1111/j.1365-2796.1994.tb01076.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Balsalobre B, Enguidanos MJ, Hernández-Godoy J, Planelles D, Mir A. Changes in total serum IgE concentrations after splenectomy. J Investig Allergol Clin Immunol 1993; 3:268-70. [PMID: 8298752] [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: 01/29/2023] Open
Abstract
In addition to allergic diseases, there are other disorders that can be accompanied by increased levels of total serum IgE. It has been demonstrated that splenectomy can alter the serum concentrations of other immunoglobulins. The aim of this study was to examine the concentrations of total IgE in the serum of patients splenectomized as a result of abdominal trauma but with no associated disease. Our results show that the average concentrations in the serum of patients were significantly higher that in the control group. Furthermore, in a large number of patients, the concentrations were above the normal limit set for the nonatopic Spanish population. These results suggest that splenectomy can alter the regulation of IgE concentrations. Since total IgE is usually determined for diagnostic purposes, it is useful to be aware of this anomaly when dealing with splenectomized patients in order to interpret correctly the laboratory analyses.
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Affiliation(s)
- B Balsalobre
- Department of Microbiology, University of Valencia, Spain
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