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Koc I, Yildiz O, Babalik M, Ozgur RI, Ozmen SU, Zeytinoglu D, Nalci NS, Yapici I, Celikten H, Demirsoy S, Deniz O. Diagnosis of COVID-19 in Patients with Acute Pulmonary Embolism. TOHOKU J EXP MED 2023; 260:127-133. [PMID: 36990745 DOI: 10.1620/tjem.2023.j024] [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: 03/31/2023]
Affiliation(s)
- Ibrahim Koc
- Bursa City Hospital, Pulmonary Medicine Clinic
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Yildiz O, Schroth J, Tree T, Turner MR, Shaw PJ, Henson SM, Malaspina A. Senescent-like Blood Lymphocytes and Disease Progression in Amyotrophic Lateral Sclerosis. Neurol Neuroimmunol Neuroinflamm 2023; 10:e200042. [PMID: 36323511 PMCID: PMC9673751 DOI: 10.1212/nxi.0000000000200042] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 08/22/2022] [Indexed: 03/11/2023]
Abstract
BACKGROUND AND OBJECTIVES Aging is known to exacerbate neuroinflammation, and in the neurodegenerative disorder amyotrophic lateral sclerosis (ALS), an older age is associated with a worse prognosis. We have previously shown the activation of cell senescence pathways in the proteome of peripheral blood mononuclear cells and the increase of proinflammatory cytokines in blood from individuals living with ALS. In this single-center, retrospective study, we investigated the expression of senescent-like blood mononuclear cells in ALS. METHODS We first applied multidimensional cytometry by time-of-flight (CyTOF) to study the senescent immunophenotype of blood mononuclear cells from 21 patients with ALS and 10 healthy controls (HCs). We then used targeted flow cytometry (FC) to investigate frequencies of senescent blood lymphocytes in 40 patients with ALS and 20 HCs. Longitudinal analysis included 2 additional time points in 17 patients with ALS. Frequencies of senescent-like lymphocytes were analyzed in relation to survival. RESULTS Unsupervised clustering of CyTOF data showed higher frequencies of senescent CD4+CD27-CD57+ T cells in patients with ALS compared with those in HCs (p = 0.0017, false discovery (FDR)-adjusted p = 0.029). Moderate to strong negative correlations were identified between CD4 T central memory-cell frequencies and survival (R = -061, p = 0.01; FDR-adjusted p < 0.1) and between CD95 CD8 cells and ALS functional rating scale revised at baseline (R = -0.72, p = 0.001; FDR-adjusted p < 0.1).Targeted FC analysis showed higher memory T regulatory cells (p = 0.0052) and memory CD8+ T cell (M-Tc; p = 0.0006) in bulbar ALS (A-B) compared with those in limb ALS (A-L), while late memory B cells (LM-B) were also elevated in A-B and fast-progressing ALS (p = 0.0059). Higher M-Tc levels separated A-B from A-L (AUC: 0.887; p < 0.0001). A linear regression model with prespecified clinical independent variables and neurofilament light chain plasma concentration showed that higher frequencies of LM-B predicted a shorter survival (hazard ratio: 1.094, CI: 1.026-1.167; p = 0.006). DISCUSSION Our data suggest that a systemic elevation of senescent and late memory T and B lymphocytes is a feature of faster progressing ALS and of ALS individuals with bulbar involvement. Lymphocyte senescence and their memory state may be central to the immune dysregulation known to drive disease progression in ALS and a target for biomarkers and therapeutics discovery.
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Affiliation(s)
- Ozlem Yildiz
- From the Neuroscience and Trauma Centre (O.Y., A.M.), Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London; Queen Square Motor Neuron Disease Centre (A.M.), Neuromuscular Department, Institute of Neurology, University College London; Translational Medicine and Therapeutics (J.S., S.M.H.), William Harvey Research Institute, Barts and the London, Queen Mary University of London; Department of Immunobiology (T.T.), School of Immunology & Microbial Sciences, King's College London; Nuffield Department of Clinical Neurosciences (M.R.T.), University of Oxford; and Sheffield Institute for Translational Neuroscience (P.J.S.), University of Sheffield, UK
| | - Johannes Schroth
- From the Neuroscience and Trauma Centre (O.Y., A.M.), Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London; Queen Square Motor Neuron Disease Centre (A.M.), Neuromuscular Department, Institute of Neurology, University College London; Translational Medicine and Therapeutics (J.S., S.M.H.), William Harvey Research Institute, Barts and the London, Queen Mary University of London; Department of Immunobiology (T.T.), School of Immunology & Microbial Sciences, King's College London; Nuffield Department of Clinical Neurosciences (M.R.T.), University of Oxford; and Sheffield Institute for Translational Neuroscience (P.J.S.), University of Sheffield, UK
| | - Timothy Tree
- From the Neuroscience and Trauma Centre (O.Y., A.M.), Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London; Queen Square Motor Neuron Disease Centre (A.M.), Neuromuscular Department, Institute of Neurology, University College London; Translational Medicine and Therapeutics (J.S., S.M.H.), William Harvey Research Institute, Barts and the London, Queen Mary University of London; Department of Immunobiology (T.T.), School of Immunology & Microbial Sciences, King's College London; Nuffield Department of Clinical Neurosciences (M.R.T.), University of Oxford; and Sheffield Institute for Translational Neuroscience (P.J.S.), University of Sheffield, UK
| | - Martin R Turner
- From the Neuroscience and Trauma Centre (O.Y., A.M.), Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London; Queen Square Motor Neuron Disease Centre (A.M.), Neuromuscular Department, Institute of Neurology, University College London; Translational Medicine and Therapeutics (J.S., S.M.H.), William Harvey Research Institute, Barts and the London, Queen Mary University of London; Department of Immunobiology (T.T.), School of Immunology & Microbial Sciences, King's College London; Nuffield Department of Clinical Neurosciences (M.R.T.), University of Oxford; and Sheffield Institute for Translational Neuroscience (P.J.S.), University of Sheffield, UK
| | - Pamela J Shaw
- From the Neuroscience and Trauma Centre (O.Y., A.M.), Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London; Queen Square Motor Neuron Disease Centre (A.M.), Neuromuscular Department, Institute of Neurology, University College London; Translational Medicine and Therapeutics (J.S., S.M.H.), William Harvey Research Institute, Barts and the London, Queen Mary University of London; Department of Immunobiology (T.T.), School of Immunology & Microbial Sciences, King's College London; Nuffield Department of Clinical Neurosciences (M.R.T.), University of Oxford; and Sheffield Institute for Translational Neuroscience (P.J.S.), University of Sheffield, UK
| | - Sian M Henson
- From the Neuroscience and Trauma Centre (O.Y., A.M.), Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London; Queen Square Motor Neuron Disease Centre (A.M.), Neuromuscular Department, Institute of Neurology, University College London; Translational Medicine and Therapeutics (J.S., S.M.H.), William Harvey Research Institute, Barts and the London, Queen Mary University of London; Department of Immunobiology (T.T.), School of Immunology & Microbial Sciences, King's College London; Nuffield Department of Clinical Neurosciences (M.R.T.), University of Oxford; and Sheffield Institute for Translational Neuroscience (P.J.S.), University of Sheffield, UK
| | - Andrea Malaspina
- From the Neuroscience and Trauma Centre (O.Y., A.M.), Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London; Queen Square Motor Neuron Disease Centre (A.M.), Neuromuscular Department, Institute of Neurology, University College London; Translational Medicine and Therapeutics (J.S., S.M.H.), William Harvey Research Institute, Barts and the London, Queen Mary University of London; Department of Immunobiology (T.T.), School of Immunology & Microbial Sciences, King's College London; Nuffield Department of Clinical Neurosciences (M.R.T.), University of Oxford; and Sheffield Institute for Translational Neuroscience (P.J.S.), University of Sheffield, UK.
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Allen-Philbey K, Trane SD, Yildiz O, Adams A, Turner B, Marta M, Mathews J, Altmann D, Giovannoni G, Schmierer K. Personalised immunotherapy in active multiple sclerosis using injectable cladrib- ine: Follow-up of the BartsMS cohort. J Neurol Neurosurg Psychiatry 2022. [DOI: 10.1136/jnnp-2022-abn.6] [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] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
IntroductionCladribine tablets (Mavenclad®) are licensed for treating people with relapsing multiple sclerosis (pwRMS). We treated people with relapsing (pwRMS) and progressive MS (pwPMS) using sub- cutaneously administered cladribine (SCAC) since 2014. Here, we present up to five year follow-up on safety and efficacy.MethodsSCAC 10mg was given on 3–4 days during week 1. 0–3 doses were administered at week 5, according to week 4 lymphocyte count. A second cycle of SCAC was administered 11 months later. Follow-up included clinical outcome evaluation and pharmacovigilance. The proportion of pwMS with no evidence of (i) disease activity (NEDA) and (ii) progression or active disease (NEPAD) was calculated.Results211 pwMS received SCAC. 154/211 completed two treatment cycles. At baseline age was 44 (17–72) years, EDSS 1–8.5. Tolerability was good. One myocardial infarction and one breast cancer occurred. Two severely disabled pwMS died (one of influenza, one of encephalitis). Lymphopenia grade 3 was detected in <3%. At 2 years, 71% (CI 54%, 85%) of pwRMS had NEDA; 38% (CI 23%, 54%) of pwPMS had NEPAD.ConclusionsSCAC was well tolerated. Frequency of significant lymphopenia was low. Efficacy in pwRMS corresponds with trial data. NEPAD rates in pwPMS were similar to licensed DMT.k.allen-philbey@nhs.net
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Yildiz O, Schroth J, Lombardi V, Pucino V, Bobeva Y, Yip PK, Schmierer K, Mauro C, Tree T, Henson SM, Malaspina A. The Expression of Active CD11b Monocytes in Blood and Disease Progression in Amyotrophic Lateral Sclerosis. Int J Mol Sci 2022; 23:3370. [PMID: 35328793 PMCID: PMC8952310 DOI: 10.3390/ijms23063370] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 03/08/2022] [Accepted: 03/09/2022] [Indexed: 12/15/2022] Open
Abstract
Monocytes expressing the inflammation suppressing active CD11b, a beta2 integrin, may regulate neuroinflammation and modify clinical outcomes in amyotrophic lateral sclerosis (ALS). In this single site, retrospective study, peripheral blood mononuclear cells from 38 individuals living with ALS and 20 non-neurological controls (NNC) were investigated using flow cytometry to study active CD11b integrin classical (CM), intermediate (IM) and non-classical (NCM) monocytes during ALS progression. Seventeen ALS participants were sampled at the baseline (V1) and at two additional time points (V2 and V3) for longitudinal analysis. Active CD11b+ CM frequencies increased steeply between the baseline and V3 (ANOVA repeated measurement, p < 0.001), and the V2/V1 ratio negatively correlated with the disease progression rate, similar to higher frequencies of active CD11b+ NCM at the baseline (R = −0.6567; p = 0.0031 and R = 0.3862; p = 0.0168, respectively). CD11b NCM, clinical covariates and neurofilament light-chain plasma concentration at the baseline predicted shorter survival in a multivariable and univariate analysis (CD11b NCM—HR: 1.05, CI: 1.01−1.11, p = 0.013. Log rank: above median: 43 months and below median: 21.22 months; p = 0.0022). Blood samples with the highest frequencies of active CD11b+ IM and NCM contained the lowest concentrations of soluble CD11b. Our preliminary data suggest that the levels of active CD11b+ monocytes and NCM in the blood predict different clinical outcomes in ALS.
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Affiliation(s)
- Ozlem Yildiz
- Centre for Neuroscience, Surgery and Trauma, The Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AT, UK; (V.L.); (Y.B.); (P.K.Y.); (K.S.)
- Neuromuscular Department, Queen Square Motor Neuron Disease Centre, Institute of Neurology, University College London, London WC1N 3BG, UK
| | - Johannes Schroth
- Translational Medicine and Therapeutics, William Harvey Research Institute, Barts and the London, Queen Mary University of London, London EC1M 6BQ, UK; (J.S.); (S.M.H.)
| | - Vittoria Lombardi
- Centre for Neuroscience, Surgery and Trauma, The Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AT, UK; (V.L.); (Y.B.); (P.K.Y.); (K.S.)
- Neuromuscular Department, Queen Square Motor Neuron Disease Centre, Institute of Neurology, University College London, London WC1N 3BG, UK
| | - Valentina Pucino
- Institute of Inflammation and Aging, College of Medical and Dental Sciences, University of Birmingham, Queen Elizabeth Hospital, Birmingham B15 2TT, UK; (V.P.); (C.M.)
| | - Yoana Bobeva
- Centre for Neuroscience, Surgery and Trauma, The Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AT, UK; (V.L.); (Y.B.); (P.K.Y.); (K.S.)
- Neuromuscular Department, Queen Square Motor Neuron Disease Centre, Institute of Neurology, University College London, London WC1N 3BG, UK
| | - Ping Kei Yip
- Centre for Neuroscience, Surgery and Trauma, The Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AT, UK; (V.L.); (Y.B.); (P.K.Y.); (K.S.)
| | - Klaus Schmierer
- Centre for Neuroscience, Surgery and Trauma, The Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AT, UK; (V.L.); (Y.B.); (P.K.Y.); (K.S.)
- Clinical Board Medicine (Neuroscience), The Royal London Hospital, Barts Health NHS Trust, London E1 1BB, UK
| | - Claudio Mauro
- Institute of Inflammation and Aging, College of Medical and Dental Sciences, University of Birmingham, Queen Elizabeth Hospital, Birmingham B15 2TT, UK; (V.P.); (C.M.)
| | - Timothy Tree
- Department of Immunobiology, School of Immunology and Microbial Sciences, King’s College London, London WC2R 2LS, UK;
| | - Sian Mari Henson
- Translational Medicine and Therapeutics, William Harvey Research Institute, Barts and the London, Queen Mary University of London, London EC1M 6BQ, UK; (J.S.); (S.M.H.)
| | - Andrea Malaspina
- Centre for Neuroscience, Surgery and Trauma, The Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AT, UK; (V.L.); (Y.B.); (P.K.Y.); (K.S.)
- Neuromuscular Department, Queen Square Motor Neuron Disease Centre, Institute of Neurology, University College London, London WC1N 3BG, UK
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Thompson AG, Gray E, Verber N, Bobeva Y, Lombardi V, Shepheard SR, Yildiz O, Feneberg E, Farrimond L, Dharmadasa T, Gray P, Edmond EC, Scaber J, Gagliardi D, Kirby J, Jenkins TM, Fratta P, McDermott CJ, Manohar SG, Talbot K, Malaspina A, Shaw PJ, Turner MR. OUP accepted manuscript. Brain Commun 2022; 4:fcac029. [PMID: 35224491 PMCID: PMC8870425 DOI: 10.1093/braincomms/fcac029] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 11/25/2021] [Accepted: 02/07/2022] [Indexed: 11/13/2022] Open
Abstract
The routine clinical integration of individualized objective markers of disease activity in those diagnosed with the neurodegenerative disorder amyotrophic lateral sclerosis is a key requirement for therapeutic development. A large, multicentre, clinic-based, longitudinal cohort was used to systematically appraise the leading candidate biofluid biomarkers in the stratification and potential therapeutic assessment of those with amyotrophic lateral sclerosis. Incident patients diagnosed with amyotrophic lateral sclerosis (n = 258), other neurological diseases (n = 80) and healthy control participants (n = 101), were recruited and followed at intervals of 3–6 months for up to 30 months. Cerebrospinal fluid neurofilament light chain and chitotriosidase 1 and blood neurofilament light chain, creatine kinase, ferritin, complement C3 and C4 and C-reactive protein were measured. Blood neurofilament light chain, creatine kinase, serum ferritin, C3 and cerebrospinal fluid neurofilament light chain and chitotriosidase 1 were all significantly elevated in amyotrophic lateral sclerosis patients. First-visit plasma neurofilament light chain level was additionally strongly associated with survival (hazard ratio for one standard deviation increase in log10 plasma neurofilament light chain 2.99, 95% confidence interval 1.65–5.41, P = 0.016) and rate of disability progression, independent of other prognostic factors. A small increase in level was noted within the first 12 months after reported symptom onset (slope 0.031 log10 units per month, 95% confidence interval 0.012–0.049, P = 0.006). Modelling the inclusion of plasma neurofilament light chain as a therapeutic trial outcome measure demonstrated that a significant reduction in sample size and earlier detection of disease-slowing is possible, compared with using the revised Amyotrophic Lateral Sclerosis Functional Rating Scale. This study provides strong evidence that blood neurofilament light chain levels outperform conventional measures of disease activity at the group level. The application of blood neurofilament light chain has the potential to radically reduce the duration and cost of therapeutic trials. It might also offer a first step towards the goal of more personalized objective disease activity monitoring for those living with amyotrophic lateral sclerosis.
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Affiliation(s)
| | - Elizabeth Gray
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Nick Verber
- Sheffield Institute for Translational Neuroscience, University of Sheffield, Sheffield, UK
| | - Yoana Bobeva
- Blizard Institute, Queen Mary University of London, London, UK
| | | | - Stephanie R. Shepheard
- Sheffield Institute for Translational Neuroscience, University of Sheffield, Sheffield, UK
| | - Ozlem Yildiz
- Blizard Institute, Queen Mary University of London, London, UK
| | - Emily Feneberg
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Lucy Farrimond
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Thanuja Dharmadasa
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Pamela Gray
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Evan C. Edmond
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Jakub Scaber
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Delia Gagliardi
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Janine Kirby
- Sheffield Institute for Translational Neuroscience, University of Sheffield, Sheffield, UK
| | - Thomas M. Jenkins
- Sheffield Institute for Translational Neuroscience, University of Sheffield, Sheffield, UK
| | - Pietro Fratta
- Blizard Institute, Queen Mary University of London, London, UK
| | | | - Sanjay G. Manohar
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Kevin Talbot
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Andrea Malaspina
- Blizard Institute, Queen Mary University of London, London, UK
- Correspondence may also be addressed to: Prof Andrea Malaspina Blizard Institute 4 Newark St, Whitechapel London, E1 2AT, UK E-mail:
| | - Pamela J. Shaw
- Sheffield Institute for Translational Neuroscience, University of Sheffield, Sheffield, UK
- Correspondence may also be addressed to: Prof Dame Pamela Shaw Sheffield Institute for Translational Neuroscience (SITraN) University of Sheffield, 385a Glossop Rd Broomhall, Sheffield, S10 2HQ, UK E-mail:
| | - Martin R. Turner
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
- Correspondence to: Prof Martin Turner Nuffield Department of Clinical Neurosciences Level 6, West Wing, John Radcliffe Hospital Oxford, OX3 9DU, UK E-mail:
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Allen-Philbey K, De Trane S, Mao Z, Álvarez-González C, Mathews J, MacDougall A, Stennett A, Zhou X, Yildiz O, Adams A, Bianchi L, Blain C, Chapman C, Chung K, Constantinescu CS, Dalton C, Farrell RA, Fisniku L, Ford H, Gran B, Hobart J, Khaleeli Z, Mattoscio M, Pavitt S, Pearson O, Peruzzotti-Jametti L, Scalfari A, Sharrack B, Silber E, Tallantyre EC, Webb S, Turner BP, Marta M, Gnanapavan S, Juliusson G, Giovannoni G, Baker D, Schmierer K. Subcutaneous cladribine to treat multiple sclerosis: experience in 208 patients. Ther Adv Neurol Disord 2021; 14:17562864211057661. [PMID: 35173808 PMCID: PMC8842147 DOI: 10.1177/17562864211057661] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 10/15/2021] [Indexed: 01/13/2023] Open
Abstract
Objective: To report on safety and effectiveness of subcutaneous cladribine (Litak®) in multiple sclerosis (MS) patients. Methods: Litak® was offered to MS-patients irrespective of disease course. Litak® 10 mg was administered for 3–4 days during week 1. Based on lymphocyte count at week 4, patients received another 0–3 doses at week 5. A second course was administered 11 months later. Follow-up included adverse events, relapses, expanded disability status scale (EDSS), 9-hole-peg and Timed-25-foot-walking tests, no-evidence-of-disease-activity (NEDA), no-evidence-of-progression-or-active-disease (NEPAD), MRI, cerebrospinal fluid (CSF) neurofilament light chain (NfL), and lymphocyte counts. Results: In all, 208 patients received at least one course of treatment. Age at baseline was 44 (17–72) years and EDSS 0–8.5. Cladribine was generally well tolerated. One myocardial infarction, one breast cancer, and three severe skin reactions occurred without long-term sequelae. Two patients died (one pneumonia, one encephalitis). Lymphopenia grade 3 occurred in 5% and grade 4 in 0.5%. In 94 out of 116 pwMS with baseline and follow-up (BaFU) data after two treatment courses, EDSS remained stable or improved. At 18 months, 64% of patients with relapsing MS and BaFU data ( n = 39) had NEDA. At 19 months, 62% of patients with progressive MS and BaFU data ( n = 13) had NEPAD. Of n = 13 patients whose CSF-NfL at baseline was elevated, 77% were normalised within 12 months. Conclusions: Litak® was well tolerated. Effectiveness in relapsing MS appeared similar to cladribine tablets and was encouraging in progressive MS. Our data suggest cladribine may be safe and effective in MS-patients irrespective of their disease stage.
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Affiliation(s)
- Kimberley Allen-Philbey
- Neuroscience, Clinical Board Medicine, The Royal London Hospital, Barts Health NHS Trust, London, UK
- Neuroscience, Surgery and Trauma, The Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, UK
| | - Stefania De Trane
- Neuroscience, Surgery and Trauma, The Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, UK
| | - Zhifeng Mao
- Kingmed College of Laboratory Medicine, Guangzhou Medical University, Guangzhou, China
- Department of Clinical Medicine, Medical School, Xiangnan University, Chenzhou, China
| | - Cesar Álvarez-González
- Neurologic Clinic and Policlinic, Departments of Medicine, Biomedicine and Clinical Research, University Hospital Basel, Basel, Switzerland
- Research Center for Clinical Neuroimmunology and Neuroscience, University of Basel, Basel, Switzerland
| | - Joela Mathews
- Pharmacy Department, The Royal London Hospital, Barts Health NHS Trust, London, UK
| | - Amy MacDougall
- Department of Medical Statistics, London School of Hygiene and Tropical Medicine, London, UK
| | - Andrea Stennett
- Neuroscience, Clinical Board Medicine, The Royal London Hospital, Barts Health NHS Trust, London, UK
- Preventive Neurology Unit, Wolfson Institute of Preventive Medicine, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, UK
| | - Xia Zhou
- Neuroscience, Clinical Board Medicine, The Royal London Hospital, Barts Health NHS Trust, London, UK
| | - Ozlem Yildiz
- Neuroscience, Clinical Board Medicine, The Royal London Hospital, Barts Health NHS Trust, London, UK
- Neuroscience, Surgery and Trauma, The Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, UK
| | - Ashok Adams
- Neuroradiology Department, The Royal London Hospital, Barts Health NHS Trust, London, UK
| | - Lucia Bianchi
- Neuroscience, Surgery and Trauma, The Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, UK
| | - Camilla Blain
- St George’s University Hospitals NHS Foundation Trust, London, UK
| | - Christine Chapman
- Neuroscience, Surgery and Trauma, The Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, UK
| | - Karen Chung
- The National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, London, UK
| | - Cris S Constantinescu
- Department of Neurology, Nottingham University Hospitals NHS Trust, Nottingham, UK
- Mental Health and Clinical Neuroscience Academic Unit, School of Medicine, University of Nottingham, Nottingham, UK
| | - Catherine Dalton
- St George’s University Hospitals NHS Foundation Trust, London, UK
| | - Rachel A Farrell
- The National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, London, UK
- Department of Neuroinflammation, National Hospital for Neurology and Neurosurgery, London, UK
| | - Leonora Fisniku
- Brighton and Sussex University Hospitals NHS Trust, Brighton, UK; Brighton and Sussex Medical School, Brighton, UK
| | - Helen Ford
- Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - Bruno Gran
- Department of Neurology, Nottingham University Hospitals NHS Trust, Nottingham, UK
- Mental Health and Clinical Neuroscience Academic Unit, School of Medicine, University of Nottingham, Nottingham, UK
| | - Jeremy Hobart
- Plymouth University Peninsula Schools of Medicine and Dentistry, Plymouth, UK
| | - Zhaleh Khaleeli
- Department of Neuroinflammation, National Hospital for Neurology and Neurosurgery, London, UK
| | - Miriam Mattoscio
- Queen’s Hospital, Barking Havering and Redbridge Hospital NHS Trust, Romford, UK; Department of Brain Sciences, Faculty of Medicine, Imperial College London, London, UK
| | - Sue Pavitt
- Dental Translational and Clinical Research Unit, School of Dentistry, University of Leeds, Leeds, UK
| | - Owen Pearson
- Department of Neurology, Swansea Bay University Health Board, Port Talbot, UK
| | - Luca Peruzzotti-Jametti
- Department of Clinical Neurosciences and National Institute for Health Research (NIHR) Biomedical Research Centre, University of Cambridge, Cambridge, UK
| | - Antonio Scalfari
- Centre of Neuroscience, Department of Medicine Charing Cross Hospital, Imperial College London, London, UK
| | - Basil Sharrack
- Department of Neurology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
- Department of Neuroscience and NIHR Neurosciences Biomedical Research Centre, University of Sheffield, Sheffield, UK
| | - Eli Silber
- Department of Neurology, King’s College Hospital, London, UK
| | - Emma C Tallantyre
- Department of Neurology, University Hospital of Wales, Cardiff, UK
- Division of Psychological Medicine and Clinical Neuroscience, School of Medicine, Cardiff University, Cardiff, UK
| | - Stewart Webb
- Institute of Neuroscience, Department of Neurology, Queen Elizabeth University Hospital, Glasgow, UK
| | - Benjamin P Turner
- Neuroscience, Clinical Board Medicine, The Royal London Hospital, Barts Health NHS Trust, London, UK
- Neuroscience, Surgery and Trauma, The Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, UK
| | - Monica Marta
- Neuroscience, Clinical Board Medicine, The Royal London Hospital, Barts Health NHS Trust, London, UK
- Neuroscience, Surgery and Trauma, The Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, UK
| | - Sharmilee Gnanapavan
- Neuroscience, Clinical Board Medicine, The Royal London Hospital, Barts Health NHS Trust, London, UK
- Neuroscience, Surgery and Trauma, The Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, UK
| | - Gunnar Juliusson
- Department of Hematology, Skåne University Hospital, Lund, Sweden
- Stem Cell Centre, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | - Gavin Giovannoni
- Neuroscience, Clinical Board Medicine, The Royal London Hospital, Barts Health NHS Trust, London, UK
- Neuroscience, Surgery and Trauma, The Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, UK
| | - David Baker
- Neuroscience, Surgery and Trauma, The Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, UK
| | - Klaus Schmierer
- Neuroscience, Clinical Board Medicine, The Royal London Hospital, Barts Health NHS Trust, London, UK Neuroscience, Surgery and Trauma, The Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, 4 Newark Street, London E1 2AT, UK
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7
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Aydin S, Kutlu Y, Acikgoz O, Bilici A, Hamdard J, Olmez O, Yildiz O. P40.20 Real-Life Analysis of Immunotherapy as the Second or Later Lines Treatment in Patients With Metastatic Non-Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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8
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Puentes F, Lombardi V, Lu CH, Yildiz O, Fratta P, Isaacs A, Bobeva Y, Wuu J, Benatar M, Malaspina A. Humoral response to neurofilaments and dipeptide repeats in ALS progression. Ann Clin Transl Neurol 2021; 8:1831-1844. [PMID: 34318620 PMCID: PMC8419401 DOI: 10.1002/acn3.51428] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 06/24/2021] [Accepted: 06/25/2021] [Indexed: 12/16/2022] Open
Abstract
Objective To appraise the utility as biomarkers of blood antibodies and immune complexes to neurofilaments and dipeptide repeat proteins, the products of translation of the most common genetic mutation in amyotrophic lateral sclerosis (ALS). Methods Antibodies and immune complexes against neurofilament light, medium, heavy chains as well as poly‐(GP)‐(GR) dipeptide repeats were measured in blood samples from the ALS Biomarkers (n = 107) and the phenotype–genotype biomarker (n = 129) studies and in 140 healthy controls. Target analyte levels were studied longitudinally in 37 ALS cases. Participants were stratified according to the rate of disease progression estimated before and after baseline and C9orf72 genetic status. Survival and longitudinal analyses were undertaken with reference to matched neurofilament protein expression. Results Compared to healthy controls, total neurofilament proteins and antibodies, neurofilament light immune complexes (p < 0.0001), and neurofilament heavy antibodies (p = 0.0061) were significantly elevated in ALS, patients with faster progressing disease (p < 0.0001) and in ALS cases with a C9orf72 mutation (p < 0.0003). Blood neurofilament light protein discriminated better ALS from healthy controls (AUC: 0.92; p < 0.0001) and faster from slower progressing ALS (AUC: 0.86; p < 0.0001) compared to heavy‐chain antibodies and light‐chain immune complexes (AUC: 0.79; p < 0.0001 and AUC: 0.74; p < 0.0001). Lower neurofilament heavy antibodies were associated with longer survival (Log‐rank Chi‐square: 7.39; p = 0.0065). Increasing levels of antibodies and immune complexes between time points were observed in faster progressing ALS. Conclusions We report a distinctive humoral response characterized by raising antibodies against neurofilaments and dipeptide repeats in faster progressing and C9orf72 genetic mutation carriers ALS patients. We confirm the significance of plasma neurofilament proteins in the clinical stratification of ALS.
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Affiliation(s)
- Fabiola Puentes
- Neurodegeneration Group, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, E1 2AT, United Kingdom.,Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, University College London, London, WC1N 3BG, United Kingdom
| | - Vittoria Lombardi
- Neurodegeneration Group, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, E1 2AT, United Kingdom.,Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, University College London, London, WC1N 3BG, United Kingdom
| | - Ching-Hua Lu
- Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, University College London, London, WC1N 3BG, United Kingdom.,School of Medicine, China Medical University, 91 Xueshi Road, North District, Taichung City, 404, Taiwan
| | - Ozlem Yildiz
- Neurodegeneration Group, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, E1 2AT, United Kingdom.,Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, University College London, London, WC1N 3BG, United Kingdom
| | - Pietro Fratta
- Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, University College London, London, WC1N 3BG, United Kingdom
| | - Adrian Isaacs
- Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, University College London, London, WC1N 3BG, United Kingdom
| | - Yoana Bobeva
- Neurodegeneration Group, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, E1 2AT, United Kingdom.,Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, University College London, London, WC1N 3BG, United Kingdom
| | - Joanne Wuu
- Department of Neurology, University of Miami, Miami, Florida, USA
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- Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, University College London, London, WC1N 3BG, United Kingdom
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- Department of Neurology, University of Miami, Miami, Florida, USA
| | - Michael Benatar
- Department of Neurology, University of Miami, Miami, Florida, USA
| | - Andrea Malaspina
- Neurodegeneration Group, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, E1 2AT, United Kingdom.,Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, University College London, London, WC1N 3BG, United Kingdom
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9
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Mateo-Casas M, Reyes S, O'Toole EA, De Trane S, Yildiz O, Allen-Philbey K, Mathews J, Baker D, Giovannoni G, Schmierer K. Severe skin reactions associated with cladribine in people with multiple sclerosis. Mult Scler Relat Disord 2020; 43:102140. [PMID: 32454296 DOI: 10.1016/j.msard.2020.102140] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 04/16/2020] [Accepted: 04/18/2020] [Indexed: 12/16/2022]
Abstract
OBJECTIVE To report three cases of severe skin reactions in patients treated with cladribine for multiple sclerosis. METHODS Case study. RESULTS Patients developed severe rash 3-192 days after receiving cladribine. All were effectively treated with steroids and antihistamines. Additional doses of cladribine were administered after pretreatment with steroids and anti-histamines. One patient developed mild recurrence following re-exposure, which resolved within three days, whilst another patient tolerated re-exposure without further adverse reaction. CONCLUSION Severe skin reactions, well described in patients receiving cladribine for treatment of haematological conditions, may occur in patients treated with this compound for multiple sclerosis. Neurologists need to be aware of this rare, but significant adverse reaction. Re-exposure may be safe with standard pre-treatment against allergic reactions.
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Affiliation(s)
- M Mateo-Casas
- The Blizard Institute (Neuroscience, Surgery & Trauma), Barts and The London School of Medicine and Dentistry, Queen Mary University of London, UK; Department of Neurology, Hospital General Universitario de Castellón, Castellón de la Plana, Spain
| | - S Reyes
- The Blizard Institute (Neuroscience, Surgery & Trauma), Barts and The London School of Medicine and Dentistry, Queen Mary University of London, UK; Clinical Board Medicine (Neuroscience), The Royal London Hospital, Barts Health NHS Trust, London, UK
| | - E A O'Toole
- The Blizard Institute (Cell Biology & Cutaneous Research), Barts and The London School of Medicine and Dentistry, Queen Mary University of London, UK
| | - S De Trane
- The Blizard Institute (Neuroscience, Surgery & Trauma), Barts and The London School of Medicine and Dentistry, Queen Mary University of London, UK; Clinical Board Medicine (Neuroscience), The Royal London Hospital, Barts Health NHS Trust, London, UK
| | - O Yildiz
- The Blizard Institute (Neuroscience, Surgery & Trauma), Barts and The London School of Medicine and Dentistry, Queen Mary University of London, UK; Clinical Board Medicine (Neuroscience), The Royal London Hospital, Barts Health NHS Trust, London, UK
| | - K Allen-Philbey
- Clinical Board Medicine (Neuroscience), The Royal London Hospital, Barts Health NHS Trust, London, UK
| | - J Mathews
- Pathology and Pharmacy, The Royal London Hospital, Barts Health NHS Trust, London, UK
| | - D Baker
- The Blizard Institute (Neuroscience, Surgery & Trauma), Barts and The London School of Medicine and Dentistry, Queen Mary University of London, UK
| | - G Giovannoni
- The Blizard Institute (Neuroscience, Surgery & Trauma), Barts and The London School of Medicine and Dentistry, Queen Mary University of London, UK; Clinical Board Medicine (Neuroscience), The Royal London Hospital, Barts Health NHS Trust, London, UK
| | - K Schmierer
- The Blizard Institute (Neuroscience, Surgery & Trauma), Barts and The London School of Medicine and Dentistry, Queen Mary University of London, UK; Clinical Board Medicine (Neuroscience), The Royal London Hospital, Barts Health NHS Trust, London, UK.
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Bilici A, Cakan B, Demir T, Oven B, Acikgoz O, Hamdard J, Olmez O, Olmuscelik O, Seker M, Yildiz O. Platelet to lymphocyte ratio is associated with tumour localization and outcomes in patients with metastatic colorectal cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz421.042] [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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Bilici A, Olmez O, Gursoy P, Çubukçu E, Yildiz O, Sakin A, Korkmaz T, Cil I, Cakar B, Menekse S, Demir T, Acikgoz O, Hamdard J. P2.01-64 Systemic Inflammatory Markers as a Predictors of Response to Crizotinib in Patients with ALK-Positive Non-Small-Cell Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1407] [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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12
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Olmez O, Bilici A, Gursoy P, Çubukçu E, Yildiz O, Sakin A, Korkmaz T, Cil I, Cakar B, Menekse S, Demir T, Acikgoz O, Hamdard J. P1.14-01 Are Pretreatment Inflammation-Based Prognostic Scores Useful in Predicting the Outcomes of Patients with ALK-Positive NSCLC? J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1152] [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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13
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Mao Z, Álvarez-González C, Allen-Philbey K, De Trane S, Yildiz O, Campion T, Adams A, Turner BP, Marta M, Gnanapavan S, Espasandin M, Mathews J, Giovannoni G, Baker D, Schmierer K. Treating the ineligible: Disease modification in people with multiple sclerosis beyond NHS England commissioning policies. Mult Scler Relat Disord 2019; 27:247-253. [DOI: 10.1016/j.msard.2018.11.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 09/28/2018] [Accepted: 11/01/2018] [Indexed: 12/14/2022]
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14
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Zubiri I, Lombardi V, Bremang M, Mitra V, Nardo G, Adiutori R, Lu CH, Leoni E, Yip P, Yildiz O, Ward M, Greensmith L, Bendotti C, Pike I, Malaspina A. Tissue-enhanced plasma proteomic analysis for disease stratification in amyotrophic lateral sclerosis. Mol Neurodegener 2018; 13:60. [PMID: 30404656 PMCID: PMC6223075 DOI: 10.1186/s13024-018-0292-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 10/16/2018] [Indexed: 12/11/2022] Open
Abstract
Background It is unclear to what extent pre-clinical studies in genetically homogeneous animal models of amyotrophic lateral sclerosis (ALS), an invariably fatal neurodegenerative disorder, can be informative of human pathology. The disease modifying effects in animal models of most therapeutic compounds have not been reproduced in patients. To advance therapeutics in ALS, we need easily accessible disease biomarkers which can discriminate across the phenotypic variants observed in ALS patients and can bridge animal and human pathology. Peripheral blood mononuclear cells alterations reflect the rate of progression of the disease representing an ideal biological substrate for biomarkers discovery. Methods We have applied TMTcalibrator™, a novel tissue-enhanced bio fluid mass spectrometry technique, to study the plasma proteome in ALS, using peripheral blood mononuclear cells as tissue calibrator. We have tested slow and fast progressing SOD1G93A mouse models of ALS at a pre-symptomatic and symptomatic stage in parallel with fast and slow progressing ALS patients at an early and late stage of the disease. Immunoassays were used to retest the expression of relevant protein candidates. Results The biological features differentiating fast from slow progressing mouse model plasma proteomes were different from those identified in human pathology, with only processes encompassing membrane trafficking with translocation of GLUT4, innate immunity, acute phase response and cytoskeleton organization showing enrichment in both species. Biological processes associated with senescence, RNA processing, cell stress and metabolism, major histocompatibility complex-II linked immune-reactivity and apoptosis (early stage) were enriched specifically in fast progressing ALS patients. Immunodetection confirmed regulation of the immunosenescence markers Galectin-3, Integrin beta 3 and Transforming growth factor beta-1 in plasma from pre-symptomatic and symptomatic transgenic animals while Apolipoprotein E differential plasma expression provided a good separation between fast and slow progressing ALS patients. Conclusions These findings implicate immunosenescence and metabolism as novel targets for biomarkers and therapeutic discovery and suggest immunomodulation as an early intervention. The variance observed in the plasma proteomes may depend on different biological patterns of disease progression in human and animal model. Electronic supplementary material The online version of this article (10.1186/s13024-018-0292-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Irene Zubiri
- Neuroscience and Trauma Centre, Blizard Institute, Barts and The School of Medicine and Dentistry, Queen Mary University of London, 4 Newark Street, London, City of London, Greater London, E1 2AT, UK. .,Proteome Sciences plc, Hamilton House, Mabledon Place, London, UK.
| | - Vittoria Lombardi
- Neuroscience and Trauma Centre, Blizard Institute, Barts and The School of Medicine and Dentistry, Queen Mary University of London, 4 Newark Street, London, City of London, Greater London, E1 2AT, UK
| | - Michael Bremang
- Proteome Sciences plc, Hamilton House, Mabledon Place, London, UK
| | - Vikram Mitra
- Proteome Sciences plc, Hamilton House, Mabledon Place, London, UK
| | - Giovanni Nardo
- Laboratory of Molecular Neurobiology, Department of Neuroscience, IRCCS - Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy
| | - Rocco Adiutori
- Neuroscience and Trauma Centre, Blizard Institute, Barts and The School of Medicine and Dentistry, Queen Mary University of London, 4 Newark Street, London, City of London, Greater London, E1 2AT, UK
| | - Ching-Hua Lu
- Neuroscience and Trauma Centre, Blizard Institute, Barts and The School of Medicine and Dentistry, Queen Mary University of London, 4 Newark Street, London, City of London, Greater London, E1 2AT, UK.,Department of Neurology, China Medical University Hospital, Taichung City, Taiwan
| | - Emanuela Leoni
- Neuroscience and Trauma Centre, Blizard Institute, Barts and The School of Medicine and Dentistry, Queen Mary University of London, 4 Newark Street, London, City of London, Greater London, E1 2AT, UK.,Proteome Sciences plc, Hamilton House, Mabledon Place, London, UK
| | - Ping Yip
- Neuroscience and Trauma Centre, Blizard Institute, Barts and The School of Medicine and Dentistry, Queen Mary University of London, 4 Newark Street, London, City of London, Greater London, E1 2AT, UK
| | - Ozlem Yildiz
- Neuroscience and Trauma Centre, Blizard Institute, Barts and The School of Medicine and Dentistry, Queen Mary University of London, 4 Newark Street, London, City of London, Greater London, E1 2AT, UK
| | - Malcolm Ward
- Proteome Sciences plc, Hamilton House, Mabledon Place, London, UK
| | - Linda Greensmith
- Sobell Department of Motor Neuroscience and Movement Disorders, MRC Centre for Neuromuscular Disorders, UCL Institute of Neurology, University College London, London, UK
| | - Caterina Bendotti
- Laboratory of Molecular Neurobiology, Department of Neuroscience, IRCCS - Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy
| | - Ian Pike
- Proteome Sciences plc, Hamilton House, Mabledon Place, London, UK
| | - Andrea Malaspina
- Neuroscience and Trauma Centre, Blizard Institute, Barts and The School of Medicine and Dentistry, Queen Mary University of London, 4 Newark Street, London, City of London, Greater London, E1 2AT, UK.
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15
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Mao Z, Álvarez-Gonzalez C, De Trane S, Yildiz O, Albor C, Doctor G, Soon D, Pepper G, Turner BP, Marta M, Mathews J, Giovannoni G, Baker D, Schmierer K. Cladribine: Off-label disease modification for people with multiple sclerosis in resource-poor settings? Mult Scler J Exp Transl Clin 2018; 4:2055217318783767. [PMID: 30090639 PMCID: PMC6077935 DOI: 10.1177/2055217318783767] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 04/19/2018] [Accepted: 05/04/2018] [Indexed: 01/13/2023] Open
Abstract
Background A considerable number of people with multiple sclerosis (pwMS) live in low- and middle-income countries (LMIC), where lack of resource adversely affects access to effective disease-modifying treatment. Objective The objective of this commentary is to propose a useful cost-effective disease-modifying treatment option for pwMS in LMIC with potential high efficacy and high convenience to the pwMS and treating physician. Viewpoint: We propose using generic 2-chloro-2’-deoxyadenosine (cladribine), a small molecule licensed for treatment of people with hairy cell leukaemia, as a solution of this significant equity imbalance. Cladribine has been shown in phase II and III trials to be a highly effective disease-modifying treatment for pwMS, and its adverse effect profile is comparable with any DMT currently licensed in high-income economies where an oral preparation has recently been licensed by the European Medicines Agency. Conclusion Our viewpoint takes into account experience we have gathered over the past three years in the use of generic cladribine to treat pwMS. Whilst here we focus on MS, there is significant potential for use of cladribine in other conditions that could benefit from its mechanism of action.
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Affiliation(s)
- Zhifeng Mao
- Department of Neurology, The Third Affiliated Hospital, Sun Yat-Sen University, China.,BartsMS, Blizard Institute, Queen Mary University of London, United Kingdom
| | - César Álvarez-Gonzalez
- BartsMS, Blizard Institute, Queen Mary University of London, United Kingdom.,Emergency Care & Acute Medicine Clinical Academic Group Neuroscience, The Royal London Hospital, Barts Health NHS Trust, United Kingdom
| | - Stefania De Trane
- BartsMS, Blizard Institute, Queen Mary University of London, United Kingdom.,Emergency Care & Acute Medicine Clinical Academic Group Neuroscience, The Royal London Hospital, Barts Health NHS Trust, United Kingdom
| | - Ozlem Yildiz
- BartsMS, Blizard Institute, Queen Mary University of London, United Kingdom.,Emergency Care & Acute Medicine Clinical Academic Group Neuroscience, The Royal London Hospital, Barts Health NHS Trust, United Kingdom
| | - Christo Albor
- BartsMS, Blizard Institute, Queen Mary University of London, United Kingdom
| | - Gabriel Doctor
- BartsMS, Blizard Institute, Queen Mary University of London, United Kingdom
| | - Derek Soon
- Division of Neurology, National University Hospital, Singapore
| | | | - Benjamin P Turner
- BartsMS, Blizard Institute, Queen Mary University of London, United Kingdom.,Emergency Care & Acute Medicine Clinical Academic Group Neuroscience, The Royal London Hospital, Barts Health NHS Trust, United Kingdom
| | - Monica Marta
- BartsMS, Blizard Institute, Queen Mary University of London, United Kingdom.,Emergency Care & Acute Medicine Clinical Academic Group Neuroscience, The Royal London Hospital, Barts Health NHS Trust, United Kingdom
| | - Joela Mathews
- Barts Health NHS Trust, Pharmacy, The Royal London Hospital, United Kingdom
| | - Gavin Giovannoni
- BartsMS, Blizard Institute, Queen Mary University of London, United Kingdom.,Clinical Board:Medicine (Neuroscience), The Royal London Hospital, Barts Health NHS Trust, United Kingdom
| | - David Baker
- BartsMS, Blizard Institute, Queen Mary University of London, United Kingdom
| | - Klaus Schmierer
- BartsMS, Blizard Institute, Queen Mary University of London, United Kingdom.,Clinical Board:Medicine (Neuroscience), The Royal London Hospital, Barts Health NHS Trust, United Kingdom
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16
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Yildiz O, Mao Z, Adams A, Dubuisson N, Allen-Philbey K, Giovannoni G, Malaspina A, Baker D, Gnanapavan S, Schmierer K. Disease activity in progressive multiple sclerosis can be effectively reduced by cladribine. Mult Scler Relat Disord 2018; 24:20-27. [PMID: 29860198 DOI: 10.1016/j.msard.2018.05.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 04/18/2018] [Accepted: 05/11/2018] [Indexed: 01/29/2023]
Abstract
BACKGROUND Evidence suggests people with non-relapsing deteriorating ("progressive") multiple sclerosis (pwPMS) may benefit from disease-modifying immune therapy (DMT). However, only one such treatment (ocrelizumab) has been licensed and is highly restricted to pwPMS suffering from the primary progressive phenotype. The difficulties assessing treatment outcome in pwPMS is one important reason for the lack of respective DMT. The concentration of neurofilaments in the cerebrospinal fluid (CSF) provides a biomarker of neuro-axonal damage, and both neurofilament light (NfL) and heavy chain (NfH) levels have been used as outcome indices and to guide treatment choices. METHODS We report on two pwPMS, who were treated with subcutaneous cladribine undergoing CSF NfL testing, alongside MRI and clinical follow-up, before and after treatment. RESULTS Cladribine treatment was well tolerated without any side effects. CSF NfL after treatment revealed significant reduction (by 73% and 80%, respectively) corroborating the MRI detectable drop in disease activity. Disability mildly progressed in one, and remained stable in the other pwPMS. CONCLUSIONS pwPMS with detectable disease activity (MRI, elevated NfL) should be considered for DMT. NfL appears to be a sensitive index of treatment effect in pwPMS, and may be a useful outcome in clinical trials targeting this patient group. Over and above its licensed indication (relapsing MS), cladribine may be an effective treatment option for pwPMS.
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Affiliation(s)
- O Yildiz
- The Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, United Kingdom; Clinical Board: Medicine (Neuroscience), The Royal London Hospital, Barts Health NHS Trust, London, United Kingdom
| | - Z Mao
- The Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, United Kingdom; Department of Neurology, Shenzhen University General Hospital, Shenzhen University, Shenzhen, China; Shenzhen University Clinical Medical Academy, Shenzhen University, Shenzhen, China
| | - A Adams
- Department of Neuroradiology, The Royal London Hospital, Barts Health NHS Trust, London, United Kingdom
| | - N Dubuisson
- The Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, United Kingdom
| | - K Allen-Philbey
- Clinical Board: Medicine (Neuroscience), The Royal London Hospital, Barts Health NHS Trust, London, United Kingdom
| | - G Giovannoni
- The Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, United Kingdom; Clinical Board: Medicine (Neuroscience), The Royal London Hospital, Barts Health NHS Trust, London, United Kingdom
| | - A Malaspina
- The Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, United Kingdom; Clinical Board: Medicine (Neuroscience), The Royal London Hospital, Barts Health NHS Trust, London, United Kingdom
| | - D Baker
- The Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, United Kingdom
| | - S Gnanapavan
- The Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, United Kingdom; Clinical Board: Medicine (Neuroscience), The Royal London Hospital, Barts Health NHS Trust, London, United Kingdom
| | - K Schmierer
- The Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, United Kingdom; Clinical Board: Medicine (Neuroscience), The Royal London Hospital, Barts Health NHS Trust, London, United Kingdom.
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17
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Kilic S, Ozdemir O, Silan F, Isik S, Yildiz O, Karaagacli D, Silan C, Ogretmen Z. Possible association between germline methylenetetrahydrofolate reductase gene polymorphisms and psoriasis risk in a Turkish population. Clin Exp Dermatol 2018; 42:8-13. [PMID: 28028860 DOI: 10.1111/ced.12909] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/19/2015] [Indexed: 01/10/2023]
Abstract
BACKGROUND Psoriasis is a common chronic inflammatory skin disease caused by genetic and epigenetic factors. There are conflicting results in the literature about the association between psoriasis and the methylenetetrahydrofolate reductase gene (MTHFR), ranging from strong linkage to no association. AIM To investigate the association between the germline MTHFR polymorphisms C677T and A1298C with psoriasis risk in a Turkish population. METHODS The study enrolled 84 patients with psoriasis and 212 healthy controls (HCs) without any history of psoriasis. DNA was extracted from peripheral blood samples of patients and HCs, and real-time PCR was used for genotyping. Results were compared by Pearson χ² test and multiple logistic regression models. RESULTS The frequency of both the MTHFR 677TT and A1298C (homozygous) genotypes was statistically significantly different from HCs. Point mutations were detected in all patients with early-onset psoriasis (before the age of 20 years). The T allele of MTHFR 677 and the C allele of MTHFR 1298 increased psoriasis risk by 12.4- and 17.0-fold, respectively, in patients compared with HCs. CONCLUSION A possible association was detected betweengermline MTHFR 677 C>T and 1298 A>C genotypes and psoriasis risk in a Turkish population. These results need to be confirmed in further studies with larger sample sizes.
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Affiliation(s)
- S Kilic
- Department of Dermatology, Faculty of Medicine, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - O Ozdemir
- Department of Medical Genetics, Faculty of Medicine, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - F Silan
- Department of Medical Genetics, Faculty of Medicine, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - S Isik
- Department of Dermatology, Faculty of Medicine, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - O Yildiz
- Department of Medical Genetics, Faculty of Medicine, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - D Karaagacli
- Department of Medical Genetics, Faculty of Medicine, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - C Silan
- Department of Pharmacology, Faculty of Medicine, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - Z Ogretmen
- Department of Dermatology, Faculty of Medicine, Canakkale Onsekiz Mart University, Canakkale, Turkey
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Bilici A, Selcukbiricik F, Rzazade R, Olmez O, Caglar H, Yildiz O. P2.01-063 Outcomes of Patients with Oligometastatic Non-Small Cell Lung Cancer Who Were Treated with Radical Treatment. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1165] [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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Bozkurt M, Yalçin S, Koçer B, Tüzün AE, Akşit H, Özkan S, Uygun M, Ege G, Güven G, Yildiz O. Effects of enhancing vitamin D status by 25-hydroxycholecalciferol supplementation, alone or in combination with calcium and phosphorus, on sternum mineralisation and breast meat quality in broilers. Br Poult Sci 2017; 58:452-461. [DOI: 10.1080/00071668.2017.1327703] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- M. Bozkurt
- Department of Nutrition, Erbeyli Poultry Research Institute, Aydın, Turkey
| | - S. Yalçin
- Department of Animal Science, Faculty of Agriculture, Ege University, İzmir, Turkey
| | - B. Koçer
- Department of Nutrition, Erbeyli Poultry Research Institute, Aydın, Turkey
| | - A. E. Tüzün
- Adnan Menderes University, Koçarlı Vocational Scholl, Aydın, Turkey
| | - H. Akşit
- Department of Biochemistry, Faculty of Veterinary, Balıkesir University, Balıkesir, Turkey
| | - S. Özkan
- Department of Animal Science, Faculty of Agriculture, Ege University, İzmir, Turkey
| | - M. Uygun
- Chemistry Department, Adnan Menderes University, Aydın, Turkey
| | - G. Ege
- Department of Nutrition, Erbeyli Poultry Research Institute, Aydın, Turkey
| | - G. Güven
- Chemistry Department, Adnan Menderes University, Aydın, Turkey
| | - O. Yildiz
- Department of Biochemistry, Faculty of Veterinary, Balıkesir University, Balıkesir, Turkey
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Yavas G, Gultekin M, Yildiz O, Seyrek M, Demirkol S, Toy H, Sargon MF, Ozkayar O, Uner A, Yildiz F, Akyol F. Assessment of concomitant versus sequential trastuzumab on radiation-induced cardiovascular toxicity. Hum Exp Toxicol 2016; 36:1121-1130. [PMID: 27932539 DOI: 10.1177/0960327116680276] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
There are limited data regarding effect of trastuzumab on radiation-induced cardiovascular toxicity when used sequentially or concomitantly. This experimental study aims to investigate effect of trastuzumab on radiation-induced cardiovascular toxicity with respect to the treatment sequence. One hundred and eight female Wistar albino rats were divided into six groups (G): G1 was control, G2 was trastuzumab, and G3 was radiotherapy (RT); G4 and G6 were sequential RT and trastuzumab; and G5 was concomitant RT and trastuzumab groups, respectively. Rats were killed at 6th h, 21st and 70th days after RT; thoracic aorta and heart samples were obtained. Transthoracic echocardiography and functional studies evaluating relaxation of thoracic aorta were performed. Subendothelial edema scores of thoracic aorta samples at 21st and 70th days were higher in RT groups (G3, G4, G5, and G6) ( p < 0.001). There was a deterioration of relaxation responses of thoracic aorta samples in RT groups ( p < 0.001). Cardiac fibrosis (CF) scores revealed detrimental effect of RT beginning from 6th h and trastuzumab from 21st day. RT groups showed further deterioration of CF at 70th day. Ejection fraction, left ventricular mass, and fractional shortening were significantly decreased in G4, G5, and G6. Trastuzumab may increase pathological damage in cardiovascular structures when used with RT regardless of timing.
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Affiliation(s)
- G Yavas
- 1 Department of Radiation Oncology, Selcuk University, Konya, Turkey
| | - M Gultekin
- 2 Department of Radiation Oncology, Hacettepe University, Ankara, Turkey
| | - O Yildiz
- 3 Department of Pharmacology, Gulhane Military Medical Academy, Ankara, Turkey
| | - M Seyrek
- 3 Department of Pharmacology, Gulhane Military Medical Academy, Ankara, Turkey
| | - S Demirkol
- 4 Department of Cardiology, Gulhane Military Medical Academy, Ankara, Turkey
| | - H Toy
- 5 Department of Pathology, Necmettin Erbakan University, Konya, Turkey
| | - M F Sargon
- 6 Department of Anatomy, Hacettepe University, Ankara, Turkey
| | - O Ozkayar
- 7 Department of Pathology, Hacettepe University, Ankara, Turkey
| | - A Uner
- 7 Department of Pathology, Hacettepe University, Ankara, Turkey
| | - F Yildiz
- 2 Department of Radiation Oncology, Hacettepe University, Ankara, Turkey
| | - F Akyol
- 2 Department of Radiation Oncology, Hacettepe University, Ankara, Turkey
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Yildiz O, Terzi M, Tugcu B, Alptekin O, Temel Y, Kocabicak E. EP 35. Deep brain stimulation for multiple sclerosis related tremor: Clinical reports. Clin Neurophysiol 2016. [DOI: 10.1016/j.clinph.2016.05.228] [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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Kocabicak E, Aygun D, Yildiz O, Taskin O, Alptekin O, Temel Y. EP 34. Effects of deep brain stimulation of the globus pallidus interna on Huntington’s disease at 1 year. Clin Neurophysiol 2016. [DOI: 10.1016/j.clinph.2016.05.227] [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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Paksoy B, Silan F, Yildiz O, Ozdemir O, Tas ZT. Meirer-Gorlin Syndrome: A Primordial Dwarfic Rare Case with Growth and Mental Retardation in Normal Karyotype. Genet Couns 2016; 27:159-163. [PMID: 29485260] [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: 06/08/2023]
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Yildiz O, Bulut B. Optimisation of gluten-free tulumba dessert with buckwheat flour and potato starch. Quality Assurance and Safety of Crops & Foods 2016. [DOI: 10.3920/qas2015.0597] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- O. Yildiz
- Department of Food Engineering, Faculty of Engineering, Iğdιr University, 76000 Iğdιr, Turkey
| | - B. Bulut
- Department of Food Engineering, Faculty of Engineering, Iğdιr University, 76000 Iğdιr, Turkey
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Emer E, Yildiz O, Seyrek M, Demirkol S, Topal T, Kurt B, Sayal A. High-dose testosterone and dehydroepiandrosterone induce cardiotoxicity in rats. Hum Exp Toxicol 2015. [DOI: 10.1177/0960327115595706] [Citation(s) in RCA: 4] [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] [Indexed: 11/15/2022]
Abstract
The aim of this study is to assess cardiotoxic effect of testosterone (TES) and dehydroepiandrosterone (DHEA) in Sprague Dawley rats. We compared the impact of subacute (14 days) and subchronic (90 days) administration of suprapharmacologic doses of TES and DHEA on body weight, locomotor activity, muscle strength, echocardiographic parameters, heart histopathology, and oxidative stress markers with the control group. Testosterone (10, 30, and 100 mg/100 g body weight) and DHEA (10 mg/100 g body weight) administration decreased the body weights and locomotor activity ( p < 0.05), and the combination of both increased muscle strength ( p < 0.05) in rats. In our histopathological evaluation, misshapen cell nuclei, disorganized myocardial fibers, and leukocytic infiltrates were observed in high-dose TES (100 mg/100 g)-treated rats, especially on day 14. On day 90, mild changes such as misshapen cell nuclei, disorganized myocardial fibers, and leukocytic infiltrates were observed in TES and DHEA-treated groups. According to our echocardiographic study on day 14 and day 90, TES, especially at high doses, induced increase in left ventricular posterior wall diameter and ejection fraction ( p < 0.05). In this study, blood oxidative stress marker malondialdehyde was increased slightly but not significantly in TES and DHEA groups. On the other hand, antioxidant enzymes such as SOD and glutathione peroxidase (GSH-Px) levels were slightly but not significantly increased in TES and DHEA groups. These data demonstrate that the potential risk to cardiac health due to exogenous androgen use may be related to oxidative stress in rats.
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Affiliation(s)
- E Emer
- Institute of Forensic Sciences, Ankara University, Dikimevi-Ankara, Turkey
| | - O Yildiz
- Department of Pharmacology, Gülhane Faculty of Medicine, Ankara, Turkey
| | - M Seyrek
- Department of Pharmacology, Gülhane Faculty of Medicine, Ankara, Turkey
| | - S Demirkol
- Department of Cardiology, Gülhane Faculty of Medicine, Ankara, Turkey
| | - T Topal
- Department of Physiology, Gülhane Faculty of Medicine, Ankara, Turkey
| | - B Kurt
- Department of Pathology, Gülhane Faculty of Medicine, Ankara, Turkey
| | - A Sayal
- Center of Pharmaceutical Sciences, Gülhane Medical Academy, Ankara, Turkey
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Karabacak K, Kaya E, Ulusoy KG, Seyrek M, Kurtoglu M, Doganci S, Yildirim V, Yildiz O, Demirkilic U. Effects of taurine on contractions of human internal mammary artery: a potassium channel opening action. Eur Rev Med Pharmacol Sci 2015; 19:1498-1504. [PMID: 25967726] [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] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE Taurine is an abundant amino acid that is widely distributed in human and animal tissues. Pharmacodynamic studies show that taurine has hypotensive and myocardial protective effects. Studies in isolated tissue baths show that taurine relaxes precontracted arteries. This study aimed to show the effects of taurine on human internal mammary artery (IMA) in vitro and to explain the mechanisms of its effects. METHODS The response in the IMA was recorded isometrically by a force displacement transducer in isolated organ baths. Taurine (20, 40, 80 mM) was added to organ baths after precontraction with KCl (45 mM) or serotonin (5-HT, 30 µM). Taurine-induced relaxations were also tested in the presence of the cyclooxygenase inhibitor indomethacin (10 µM), the nitric oxide synthase inhibitor L-NAME (100 µM), the large conductance Ca2+-activated K+ channel inhibitor tetraethylammonium (TEA, 1 mM), the ATP-sensitive K+ channel inhibitor glibenclamide (GLI, 10 µM), the voltage-sensitive K+ channel inhibitor 4-aminopyridine (4-AP, 1 mM) and the inward rectifier K+ channel inhibitor barium chloride (BaCl2, 30 µM). RESULTS Taurine did not affect the resting tone of IMA. However, it produced relaxation in the 5-HT and KCl -precontracted preparations. The relaxation to IMA was not affected by GLI, 4-AP, BaCl2, indomethacin and L-NAME. But, TEA inhibited taurine -induced relaxations significantly (p < 0.05). CONCLUSIONS The preincubation of IMA with taurine antagonized KCl and 5-HT induced contractions in a concentration dependent manner, while it did not affect the resting tone. The relaxations to taurine were significantly antagonized by pretreatment with TEA. These results suggest that mechanism of vasodilator effect of taurine in IMA may be the activation of large conductance Ca2+-activated K+ channels.
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Affiliation(s)
- K Karabacak
- Department of Cardiovascular Surgery, Gulhane Faculty of Medicine, Ankara, Turkey.
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Demir N, Yildiz O, Alpaslan M, Hayaloglu A. Evaluation of volatiles, phenolic compounds and antioxidant activities of rose hip (Rosa L.) fruits in Turkey. Lebensm Wiss Technol 2014. [DOI: 10.1016/j.lwt.2013.12.038] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [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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Aydin O, Celik GE, Onen ZP, Yilmaz I, Ozdemir SK, Yildiz O, Mungan D, Demirel YS. How do patients with asthma and COPD behave during fasting? Allergol Immunopathol (Madr) 2014; 42:115-9. [PMID: 23265268 DOI: 10.1016/j.aller.2012.07.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Accepted: 07/22/2012] [Indexed: 11/28/2022]
Abstract
BACKGROUND-OBJECTIVE Several factors might affect the adherence to treatment in patients with asthma and COPD. Among these factors, the effect of religious beliefs and behaviours has been less studied so far. In this study, the effect of fasting on drug use behaviours of patients with asthma and COPD were comparatively analysed. METHODS A total of 150 adult patients with asthma and 150 adult patients with COPD were consecutively enrolled into this cross-sectional study. The patients were asked whether they fast during Ramadan and if the answer was yes, they were kindly asked to respond to further questions related to use of inhaled medications during that particular time. RESULTS The majority of the cases from both groups [98 (65.3%) of asthma patients and 139 (92.6%) of COPD] were fasting during Ramadan. The majority of the patients with COPD (n=126; 90.6%) reported that they quitted their regular therapy basis during Ramadan. On the other hand, the majority of asthma patients used their controller inhaled medications during Ramadan and preferred to use them on iftar and sahur times (n=81, 82.6%). CONCLUSION Our results showed that in a Muslim population, the patients with asthma and COPD do not feel their diseases to be an inhibitory factor for fasting during Ramadan. However, fasting seems to be an important determining factor in medication compliance by modifying the drug use behaviours in each group in a different way. Therefore, the patients should be informed about the effects of fasting on their disease and the allowed drugs during fasting.
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Affiliation(s)
- O Aydin
- Ankara University School of Medicine, Department of Chest Diseases, Division of Immunology and Allergy, Ankara, Turkey.
| | - G E Celik
- Ankara University School of Medicine, Department of Chest Diseases, Division of Immunology and Allergy, Ankara, Turkey
| | - Z P Onen
- Ankara University School of Medicine, Department of Chest Diseases, Ankara, Turkey
| | - I Yilmaz
- Ankara University School of Medicine, Department of Chest Diseases, Division of Immunology and Allergy, Ankara, Turkey
| | - S K Ozdemir
- Ankara University School of Medicine, Department of Chest Diseases, Division of Immunology and Allergy, Ankara, Turkey
| | - O Yildiz
- Ankara University School of Medicine, Department of Chest Diseases, Ankara, Turkey
| | - D Mungan
- Ankara University School of Medicine, Department of Chest Diseases, Division of Immunology and Allergy, Ankara, Turkey
| | - Y S Demirel
- Ankara University School of Medicine, Department of Chest Diseases, Division of Immunology and Allergy, Ankara, Turkey
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Abstract
Monoamine oxidase (MAO) inhibitors are generally used in the treatment of depressive disorders and some neurodegenerative illnesses, such as Parkinson's disease and Alzheimer's disease. The aim of this preliminary study was to investigate the MAO [MAO (E.C.1.4.3.4)] inhibiting effect of various apitherapeutic products, such as chestnut honey, pollen and propolis. Extracts' MAO inhibition was measured using peroxidase-linked spectrophotometric assay in enzyme isolated from rat liver microsomes, and the values are expressed as the inhibition concentration (IC50) causing 50% inhibition of MAO. The antioxidant activity of the bee products was also determined in terms of total phenolic content (TPC) and ferric reducing/antioxidant power in aquatic extracts. All samples exhibited substantial inhibition of MAO, propolis having the highest. Inhibition was related to samples' TPCs and antioxidant capacities. These results show that bee products possess a sedative effect and may be effective in protecting humans against depression and similar diseases.
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Affiliation(s)
- O Yildiz
- Maçka Vocational High School, Karadeniz Technical University , Trabzon , Turkey and
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Tural D, Ozturk M, Selcukbiricik F, Yildiz O, Elicin O, Turna H, Guney S, Ozguroglu M. Preoperative chemoradiotherapy improves local recurrence free survival in locally advanced rectal cancer. J BUON 2013; 18:385-390. [PMID: 23818350] [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] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
PURPOSE Preoperative chemoradiotherapy (pre-CRT) followed by total mesorectal excision (TME) is the recommended therapy for patients with locally advanced rectal cancer (LARC). The primary aim of this study was to compare the rates of local and distant recurrence and overall survival (OS) in LARC patients who received pre-CRT vs postoperative (post) CRT. METHODS The medical records of 158 rectal cancer patients with clinical stage T3, T4 or N positive disease who received either pre-CRT or post-CRT between 2000-2009 were retrospectively analysed. Pre-CRT employed protracted 5-fluorouracil (5FU) infusion, whereas post-CRT included bolus 5FU and leucovorin concurrently with radiation therapy (RT). Radiation dose was 50.4 Gy in 82% and 45 Gy in 18% of the patients. RESULTS 158 patients (65 females, 93 males) were analysed. Median age was 56.5 years (range 19-78). Fifty-three (34%) patients received pre-CRT and 105 (66%) post-CRT. Median follow-up was 43.3 months (range 8-182) and 47.6 months (range 9-194) in pre-CRT and post-CRT patients, respectively. After pre-CRT, significant downstaging was achieved. However, the type of surgical resection was not influenced by the administration of pre-CRT in tumors ≥5 cm distant from the anal verge (p=0.3). Pathologic complete response was achieved in 20% of the patients in the pre-CRT group. Local recurrence free survival (LRFS) at 5-years was 89.2% in the pre-CRT and 74.8% in the post-CRT group (p=0.04). Distant recurrence free survival (DRFS) at 5-years was 81.7% and 68.5 % in pre-CRT and post-CRT groups, respectively (p=0.1). OS was similar in the two groups (71.4 vs 64.4%, p=0.9). CONCLUSION Treatment of LARC with pre-CRT followed by surgery improved LRFS as compared to surgery followed by post-CRT, but failed to improve DRFS or OS in our patient population.
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Affiliation(s)
- D Tural
- 1Department of Internal Medicine, Division of Medical Oncology, Istanbul University, Cerrahpasa Medical Faculty, Istanbul, Turkey
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Turna ZS, Öztürk M, Tural D, Biricik F, Yildiz O, Ozguroglu M, Demirelli F, Mandel N, Buyukunal E, Serdengecti S. 5046 POSTER Tumour Characteristics Determining Response to Neoadjuvant Chemotherapy in Locally Advanced Breast Cancer. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)71488-5] [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: 11/24/2022]
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Selcukbiricik F, Yildiz O, Tural D, Ozturk M, Demir G, Ozguroglu M, Erdamar S, Buyukunal E, Mandel N, Serdengecti S. 6020 POSTER KRas and Braf: Is a Predictor in Metastatic Colorectal Cancer Patients for Bevacizumab? Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)71665-3] [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: 11/26/2022]
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Turhal D, Ozturk M, Yildiz O, Selcukbiricik F, Elicin O, Erguney S, Ozguroglu M. 6037 POSTER Preoperative Chemoradiotherapy Improves Local Recurrence Free Survival in Locally Advanced Rectal Cancer. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)71682-3] [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: 11/28/2022]
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Yildiz O, Selcukbiricik F, Tural D, Turna H, Mandel N, Ekmekcioglu O, Halac M, Serdengecti S. 2104 POSTER Role of FDG-PET/CT in the Evaluation of Bone Marrow Involvement of Solid Tumours. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)71033-4] [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: 10/17/2022]
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Yildiz O, Kabatas S, Yilmaz C, Altinors N, Agaoglu B. Cerebellar mutism syndrome and its relation to cerebellar cognitive and affective function: Review of the literature. Ann Indian Acad Neurol 2011; 13:23-7. [PMID: 20436742 PMCID: PMC2859583 DOI: 10.4103/0972-2327.61272] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2009] [Revised: 09/16/2009] [Accepted: 11/19/2009] [Indexed: 11/13/2022] Open
Abstract
Tumors of the cerebellum and brainstem account for half of all brain tumors in children. The realization that cerebellar lesions produce clinically relevant intellectual disability makes it important to determine whether neuropsychological abnormalities occur in long-term survivors of pediatric cerebellar tumors. Little is known about the neurobehavioral sequale resulting specifically from the resection of these tumors in this population. We therefore reviewed neuropsychological findings associated with postoperative cerebellar mutism syndrome and discuss the further implications for cerebellar cognitive function.
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Affiliation(s)
- Ozlem Yildiz
- Department of Child and Adolescent Psychiatry, Kocaeli University, Faculty of Medicine, Kocaeli, Turkey
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Yildiz O, Sismanlar SG, Memik NC, Karakaya I, Agaoglu B. Atomoxetine and methylphenidate treatment in children with ADHD: the efficacy, tolerability and effects on executive functions. Child Psychiatry Hum Dev 2011; 42:257-69. [PMID: 21165694 DOI: 10.1007/s10578-010-0212-3] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Abstract
The aim of this study was to compare the safety, efficacy, tolerability, and the effects of atomoxetine and OROS-MPH on executive functions in children with ADHD. This study was an open-label study that only included two medication groups. Children were randomized to open-label atomoxetine or OROS-MPH for 12 weeks. Primary efficacy measures were T-DSM-IV-S, CGI-I and neuropsychological tests battery. Safety assessments included electrocardiogram, adverse events checklist and laboratory tests. According to the endpoint improvement scores of CGI and parents T-DSM-IV-S, treatment responses were not significantly different between the two study groups. OROS-MPH led to a significantly greater reduction in teacher T-DSM-IV-S scale scores. OROS-MPH was more effective than atomoxetine on Stroop-5 time and number of corrections. Significant decrease in the percentage of perseverative errors on WCST in the OROS-MPH group was seen (p = 0.005). The most frequently reported adverse events in the atomoxetine group were anorexia, nausea, nervousness, weight loss, abdominal pain, and somnolence. In the OROS-MPH group, patients most frequently reported anorexia, nervousness, insomnia, headache, nausea, and weight loss. When all these results are considered, although both drugs can be considered effective in ADHD treatment, more remarkable improvement is provided by OROS-MPH based on the rates across informant (i.e., teachers, clinicians) and neuropsychological evaluation.
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Affiliation(s)
- Ozlem Yildiz
- Department of Child and Adolescent Psychiatry, Kocaeli University, İzmit, Turkey
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Sucheston L, Witonsky DB, Hastings D, Yildiz O, Clark VJ, Di Rienzo A, Onel K. Natural selection and functional genetic variation in the p53 pathway. Hum Mol Genet 2011; 20:1502-8. [PMID: 21266458 DOI: 10.1093/hmg/ddr028] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
The allele frequencies of two functional single-nucleotide polymorphisms (SNPs) in the p53 pathway, the MDM2 SNP309 and TP53 Arg72Pro, vary dramatically among populations. That the frequencies of the TP53 SNP follow a clinal distribution may suggest that selective pressure from environmental variables correlated with latitude contributed to these observed population differences. Recently, winter temperature and UV radiation were found to be significantly correlated with the TP53 and the MDM2 SNPs, respectively, in East Asians; whether these correlations are more extreme than expected based upon nonselective factors such as patterns of human migration remains unclear. Here, we genotyped these two SNPs in 971 unrelated individuals from 52 unique populations worldwide and tested for correlations with both latitude and a number of climate-related environmental variables on a global scale, controlling for these neutral processes. The TP53 SNP was associated with a significant selection signal for a few climate variables, such as short-wave radiation flux in the winter, but these signals were no longer significant after correction for multiple tests. The MDM2 SNP did not exhibit a significant signal with any climate variable. Therefore, these SNPs are unlikely to be under selective pressure driven by these variables. Thus, these data underscore the need to incorporate population history when assessing signatures of selection.
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Affiliation(s)
- Lara Sucheston
- Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Buffalo, NY 14203, USA
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Cakin Memik N, Sismanlar SG, Yildiz O, Karakaya I, Isik C, Agaoglu B. Social anxiety level in Turkish adolescents. Eur Child Adolesc Psychiatry 2010; 19:765-72. [PMID: 20614147 DOI: 10.1007/s00787-010-0119-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2010] [Accepted: 06/23/2010] [Indexed: 10/19/2022]
Abstract
Social phobia is a mental disorder characterized by extreme and consistent fear of meeting new people, scrutiny in a variety of performance and/or interactional situations. The aim of this study was to investigate the level of self-reported social anxiety in a community sample of Turkish adolescents and the relationship between social anxiety and some sociodemographic parameters. This study was a school-based cross-sectional study. Students in grades 6-8 (aged 10-16) from 12 schools in Kocaeli/Turkey were screened by the Social Anxiety Scale for Adolescents (SAS-A). The correlations of sociodemographic parameters with the SAS-A scores were examined. Data from a sample of 1,713 students (865 boys 50.4% and 848 girls 49.5%) were analyzed. A significant gender difference in the SAS-A points was found. Boys reported higher SAS-A total and subscale scores (except social avoidance and distress-general subscale score) than did girls. A significant negative correlation was found between socioeconomic status and social anxiety level. SAS-A scores were higher in those with a low socioeconomic level, and who were going to rural schools. The result of this study showed that social phobic symptoms among Turkish adolescents were more severe in boys. Some factors such as low socioeconomic level, and going to a rural school had impact on the SAS-A scores. As the impairment in the school-domain was reported to be quite high, professionals and teachers need to recognize social anxiety in adolescents, so that help can be offered to overcome the difficulties social phobia causes.
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Sahin H, Aliyazicioglu R, Yildiz O, Kolayli S, Innocenti A, Supuran CT. Honey, polen, and propolis extracts show potent inhibitory activity against the zinc metalloenzyme carbonic anhydrase. J Enzyme Inhib Med Chem 2010; 26:440-4. [DOI: 10.3109/14756366.2010.503610] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Affiliation(s)
- H. Sahin
- Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, Trabzon, Turkey
| | - R. Aliyazicioglu
- Faculty of Pharmacy, Karadeniz Technical University, Trabzon, Turkey
| | - O. Yildiz
- Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, Trabzon, Turkey
| | - S. Kolayli
- Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, Trabzon, Turkey
| | - A. Innocenti
- Polo Scientifico, Laboratorio di Chimica Bioinorganica, Rm. 188, Università degli Studi di Firenze, Via della Lastruccia 3 Sesto Fiorentino, Florence, Italy
| | - C. T. Supuran
- Polo Scientifico, Laboratorio di Chimica Bioinorganica, Rm. 188, Università degli Studi di Firenze, Via della Lastruccia 3 Sesto Fiorentino, Florence, Italy
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Cakin-Memik N, Yildiz O, Sişmanlar SG, Karakaya I, Ağaoğlu B. Priapism associated with methylphenidate: a case report. Turk J Pediatr 2010; 52:430-434. [PMID: 21043394] [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: 05/30/2023]
Abstract
Priapism is a persistent unwanted erection that is not associated with sexual desire or sexual stimulation. Immediate diagnosis and treatment are essential for priapism; otherwise, it causes ischemia of cavernous tissues, which will result in erectile dysfunction. In this paper, we report a 14-year-old male patient who presented with priapism after administration of immediate-release methylphenidate. When the usage of immediate-release methylphenidate was terminated, priapism spontaneously disappeared. To our knowledge, this is the first report in the literature of priapism associated with immediate-release methylphenidate use. This issue is significant because in the case of immediate-release methylphenidate prescription to adolescent male patients, the probability of the development of priapism should not be ignored.
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Affiliation(s)
- Nursu Cakin-Memik
- Department of Child and Adolescent Psychiatry, Kocaeli University Faculty of Medicine, Kocaeli, Turkey
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Seyrek M, Vural IM, Tunca YM, Aydin C, Ulku C, Demirkaya K, Inal A, Yildiz O. The vasodilatory effect of a synthetic polymer-based root canal material on thoracic aorta. Int Endod J 2010; 43:590-9. [DOI: 10.1111/j.1365-2591.2010.01732.x] [Citation(s) in RCA: 4] [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: 11/27/2022]
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Metan G, Alp E, Yildiz O, Percin D, Aygen B, Sumerkan B. Clinical Experience with Tigecycline in the Treatment of Carbapenem-Resistant AcinetobacterInfections. J Chemother 2010; 22:110-114. [DOI: 10.1179/joc.2010.22.2.110] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
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43
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Celik S, Oktenli C, Terekeci HM, Ipcioglu O, Sanisoglu YS, Sayan O, Yesilova Z, Yildiz O, Tunca Y, Nalbant S. Blood Oxidative Stress Biomarkers in Patients with Familial Mediterranean Fever (FMF). AKTUEL RHEUMATOL 2009. [DOI: 10.1055/s-0029-1242797] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Kanat M, Serin E, Tunckale A, Yildiz O, Sahin S, Bolayirli M, Arinc H, Dirican A, Karagoz Y, Altuntas Y, Celebi H, Oguz A. A multi-center, open label, crossover designed prospective study evaluating the effects of lipid lowering treatment on steroid synthesis in patients with Type 2 diabetes (MODEST Study). J Endocrinol Invest 2009; 32:852-6. [PMID: 19783896 DOI: 10.1007/bf03345757] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [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: 01/02/2023]
Abstract
OBJECTIVE It has been suggested that lipid-lowering treatment with the use of statins adversely affects the steroid hormones. However, the safety of lipid lowering treatment targeting very low levels of LDL with respect to the steroid hormones has not been established. RESEARCH DESIGN AND METHODS A prospective, randomized, multicenter trial was conducted involving 98 patients. The patients were randomized into 2 groups: group-I received 10 mg of atorvastatin plus 10 mg of ezetimibe and group-II 80 mg of atorvastatin for the first 3 months. After crossover, the first group received 80 mg of atorvastatin and the second group 10 mg of atorvastatin plus 10 mg of ezetimibe for the following 3 months. Cortisol, DHEAS, testosterone, and estradiol levels were measured at the enrollment and at the end of the 1st, 2nd, 3rd, and 6th months. RESULTS Along with a decrease in LDL level, the levels of DHEAS, testosterone, and estradiol decreased in both groups (p<0.001). While cortisol levels were maintained in the group given 10 mg of atorvastatin plus 10 mg of ezetimibe, it decreased significantly after the crossover to 80 mg of atorvastatin (p<0.001). The group initially given 80 mg of atorvastatin measured a lower level of cortisol for the first 3 months and it returned to normal levels after switching to 10 mg of atorvastatin plus 10 mg of ezetimibe. CONCLUSION Eighty milligrams of atorvastatin decreased all adrenal and gonadal steroids, whereas 10 mg of ezetimibe combined with 10 mg of atorvastatin had at least no impact on cortisol levels.
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Affiliation(s)
- M Kanat
- Department of Internal Medicine, Izzet Baysal Medical School, Abant Izzet Baysal University, TR14280-Golkoy, Bolu, Turkey.
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45
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Metan G, Altinbas A, Zarakolu P, Yildiz O, Cetinkaya Sardan Y, Sumerkan B, Hascelik G. Predictors of Mortality in Patients with Bacteremia of Unknown Source Due to Extended Spectrum Beta-Lactamase Producing Escherichia coli. J Chemother 2009; 21:448-451. [DOI: 10.1179/joc.2009.21.4.448] [Citation(s) in RCA: 5] [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: 08/30/2023]
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46
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Ozcetin A, Ataoglu S, Kocer E, Yazici S, Yildiz O, Ataoglul A, Icmeli C. Effects of depression and anxiety on quality of life of patients with rheumatoid arthritis, knee osteoarthritis and fibromyalgia syndrome. W INDIAN MED J 2007; 56:122-9. [PMID: 17910141 DOI: 10.1590/s0043-31442007000200004] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [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: 11/22/2022]
Abstract
OBJECTIVE To measure the effects of depression and anxiety on quality of life (QoL) in patients with rheumatoid arthritis (RA), knee osteoarthritis (OA) and fibromyalgia syndrome (FMS). METHODS One hundred and fifty-four patients with RA, knee OA, and FMS who presented to the physical medicine and rehabilitation department were studied. For evaluation of the patients, Beck depression scale, Beck anxiety scale, and Short Form-36 were used. RESULTS Twenty-two per cent of patients (n = 34) were diagnosed with of RA, 52.6% (n = 81) knee OA and 25.3% (n = 39) FMS. Except for the subscales, of physical and emotional role, there were statistically significant differences among diagnostic groups in the rest of the SF-36 subscales. In the physical functioning subscale, the highest score was obtained in the fibromyalgia group and the lowest in the RA group (p < 0.001). However, in the bodily pain subscale, the lowest score was recorded in the fibromyalgia group (p = 0.019). In all diagnostic groups, the scores of SF-36 subscales were significantly low in patients who scored above the threshold value of Beck depression scale (p < 0. 001). A strong negative correlation was detected between scores of Beck anxiety scale and the scores of all SF36 subscales in patients with RA and knee OA. On the other hand, in patients with FMS, anxiety scores correlated negatively with only physical and somatic function scores of SF-36. CONCLUSION Quality of life is significantly low in patients with RA, knee OA and FMS, whose depression and/or anxiety scores are high. Therefore, these patients should be managed using a multidisciplinary approach including psychiatric support.
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Affiliation(s)
- A Ozcetin
- Department of Psychiatry, Duzce Faculty of Medicine, Abant Izzet Baysal University Duzce, Turkey.
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Yildiz O, Alp E, Yucel S, Kiran B, Tucer B, Ok E, Aygen B. R2267 Repeated prevalence surveys of surgical site infections in a Turkish university hospital. Int J Antimicrob Agents 2007. [DOI: 10.1016/s0924-8579(07)72106-4] [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: 11/16/2022]
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Abstract
The increased incidence of cardiovascular disease in man compared with premenopausal women suggests an unfavourable effect of male sex hormone testosterone on the cardiovascular system. However, numerous clinical and epidemiological studies reported a controversial relationship between testosterone and cardiovascular disease. Furthermore, an increasing amount of evidence indicate that testosterone can exert acute vasorelaxing effects, VIA non-genomic mechanisms. These effects involve primarily the vascular smooth muscle, without requiring the presence of endothelium, although an endothelial contribution is apparent in some studies. To date, the mechanism behind the vasodilatory action of testosterone is still under debate and might be through either activation of K (+) channels or blockade of Ca (2+) channels in vascular muscle cells. The purpose of this article is to review the evidence regarding the vasodilating effect of testosterone as well as its mechanism of action.
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Affiliation(s)
- O Yildiz
- Department of Pharmacology, Gulhane School of Medicine, Ankara, Turkey.
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Ateser G, Yildiz O, Leblebici C, Mandel NM, Unal F, Turna H, Arikan I, Colcaki D. Metastatic primitive neuroectodermal tumor of the ovary in pregnancy. Int J Gynecol Cancer 2007; 17:266-9. [PMID: 17291265 DOI: 10.1111/j.1525-1438.2006.00761.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: 11/29/2022] Open
Abstract
Primitive neuroectodermal tumor (PNET) is a small round tumor belonging to the PNET/Ewing's sarcoma family. We hereby report a case of PNET of the ovary, which was detected at the second trimester of pregnancy. Chemotherapy was administered and a healthy baby was delivered by cesarean section. After the pregnancy, the mother was found to have metastatic disease. Chemotherapy was continued, but she died due to progressive disease 13 months after the initial diagnosis. In this case report, we discuss chemotherapy options during pregnancy and the importance of multidisciplinary approach to unusual presentations of rare tumors
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Affiliation(s)
- G Ateser
- Department of Obstetrics and Gynecology, Istanbul Teaching and Research Hospital, Istanbul, Turkey
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Karaduman M, Oktenli C, Musabak U, Sengul A, Yesilova Z, Cingoz F, Olgun A, Sanisoglu SY, Baysan O, Yildiz O, Taslipinar A, Tatar H, Kutlu M, Ozata M. Leptin, soluble interleukin-6 receptor, C-reactive protein and soluble vascular cell adhesion molecule-1 levels in human coronary atherosclerotic plaque. Clin Exp Immunol 2006; 143:452-7. [PMID: 16487244 PMCID: PMC1809610 DOI: 10.1111/j.1365-2249.2006.03025.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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The aim of the present study was to explore the relationship between tissue levels of leptin, soluble interleukin-6 receptor (sIL-6R), high-sensitive-C-reactive protein (hs-CRP) and soluble vascular cell adhesion molecule-1 (sVCAM-1) in atherosclerotic plaques, and traditional risk factors. Coronary artery specimens were obtained from 35 consecutive patients (26 men and nine women) who underwent coronary artery bypass grafting procedure. The mean tissue levels of leptin, hs-CRP and sIL-6R were significantly higher in patients with diabetes mellitus than without diabetes mellitus. When patients were classified according to the smoking status, the mean tissue levels of leptin, hs-CRP and sIL-6R were significantly higher in current smokers than both former smokers and non-smokers. In addition, the mean tissue levels of leptin and sIL-6R were significantly higher in former smokers than non-smokers. There was a positive association between leptin and hs-CRP, sIL-6R and plasma glucose in all patients. Plasma HDL levels were associated negatively with atherosclerotic tissue levels of leptin. Tissue levels of sIL-6R were associated significantly in a positive manner with leptin, hs-CRP and plasma glucose, while tissue levels of hs-CRP were associated with both leptin and sIL-6R. In conclusion, it is attractive to speculate that hs-CRP, sIL-6R and leptin could act synergistically in course of local inflammatory activity and those molecules may not be just markers of inflammation and cardiovascular risk but are also likely to play a pathogenic role in atheromatous plaque. In addition, atherosclerotic tissue levels of CRP, sIL-6R and leptin were significantly higher in current smokers and patients with diabetes.
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Affiliation(s)
- M Karaduman
- Department of Internal Medicine, Gulhane School of Medicine, TR-06018 Etlik-Ankara, Turkey
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