76
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Schatlo B, Fung C, Stienen M, Fathi A, Fandino J, Smoll N, Tok S, Daniel R, Zumofen D, Burkhard J, Dan-Ura H, Röthlisberger M, Reinert M, Winkler K, Ahlborn P, Mendes-Pereira V, D́Alonzo D, Seule M, Kerkeni H, Bervini D, Sailer M, Kuhlen D, Remonda L, Rohde V, Mostaguir K, Marbacher S, Valsecchi D, Corniola M, Schöni D, Woernle C, Regli L, Levivier M, Hildebrandt G, Mariani L, Beck J, Guzman R, Raabe A, Bijlenga P, Keller E, Schaller K. Incidence, Therapy, and Outcome of Aneurysmal Subarachnoid Hemorrhage. The Swiss Study on Aneurysmal Subarachnoid Hemorrhage (Swiss SOS). J Neurol Surg A Cent Eur Neurosurg 2015. [DOI: 10.1055/s-0035-1564496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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77
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Fung C, Murek M, Gautschi O, Gralla J, Schaller K, Raabe A, Beck J. Effect of Decompressive Craniectomy on Perihematomal Edema in Patients with Intracerebral Hemorrhage. J Neurol Surg A Cent Eur Neurosurg 2015. [DOI: 10.1055/s-0035-1564531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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78
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Ryan NS, Biessels GJ, Kim L, Nicholas JM, Barber PA, Walsh P, Gami P, Morris HR, Bastos-Leite AJ, Schott JM, Beck J, Mead S, Chavez-Gutierrez L, de Strooper B, Rossor MN, Revesz T, Lashley T, Fox NC. Genetic determinants of white matter hyperintensities and amyloid angiopathy in familial Alzheimer's disease. Neurobiol Aging 2015; 36:3140-3151. [PMID: 26410308 DOI: 10.1016/j.neurobiolaging.2015.08.026] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 08/24/2015] [Accepted: 08/26/2015] [Indexed: 12/28/2022]
Abstract
Familial Alzheimer's disease (FAD) treatment trials raise interest in the variable occurrence of cerebral amyloid angiopathy (CAA); an emerging important factor in amyloid-modifying therapy. Previous pathological studies reported particularly severe CAA with postcodon 200 PSEN1 mutations and amyloid beta coding domain APP mutations. As CAA may manifest as white matter hyperintensities (WMH) on magnetic resonance imaging, particularly posteriorly, we investigated WMH in 52 symptomatic FAD patients for associations with mutation position. WMH were visually rated in 39 PSEN1 (18 precodon 200); 13 APP mutation carriers and 25 healthy controls. Ten PSEN1 mutation carriers (5 precodon 200) had postmortem examination. Increased WMH were observed in the PSEN1 postcodon 200 group and in the single APP patient with an amyloid beta coding domain (p.Ala692Gly, Flemish) mutation. WMH burden on MRI correlated with severity of CAA and cotton wool plaques in several areas. The precodon 200 group had younger ages at onset, decreased axonal density and/or integrity, and a greater T-lymphocytic response in occipital deep white matter. Mutation site contributes to the phenotypic and pathological heterogeneity witnessed in FAD.
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79
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Mikoteit T, Beck J, Hemmeter U, Brand S, Bischof R, Delini-Stula A, Holsboer-Trachsler E, Eckert A. Assessment of serum levels of mature brain-derived neurotrophic factor (mBDNF) is not superior to total (tot)BDNF in prediction of antidepressant treatment outcome. PHARMACOPSYCHIATRY 2015. [DOI: 10.1055/s-0035-1557977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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80
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Fratta P, Polke JM, Newcombe J, Mizielinska S, Lashley T, Poulter M, Beck J, Preza E, Devoy A, Sidle K, Howard R, Malaspina A, Orrell RW, Clarke J, Lu CH, Mok K, Collins T, Shoaii M, Nanji T, Wray S, Adamson G, Pittman A, Renton AE, Traynor BJ, Sweeney MG, Revesz T, Houlden H, Mead S, Isaacs AM, Fisher EMC. Screening a UK amyotrophic lateral sclerosis cohort provides evidence of multiple origins of the C9orf72 expansion. Neurobiol Aging 2015; 36:546.e1-7. [PMID: 25179228 PMCID: PMC4270445 DOI: 10.1016/j.neurobiolaging.2014.07.037] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Accepted: 07/27/2014] [Indexed: 12/13/2022]
Abstract
An expanded hexanucleotide repeat in the C9orf72 gene is the most common genetic cause of amyotrophic lateral sclerosis and frontotemporal dementia (C9ALS/FTD). Although 0-30 hexanucleotide repeats are present in the general population, expansions >500 repeats are associated with C9ALS/FTD. Large C9ALS/FTD expansions share a common haplotype and whether these expansions derive from a single founder or occur more frequently on a predisposing haplotype is yet to be determined and is relevant to disease pathomechanisms. Furthermore, although cases carrying 50-200 repeats have been described, their role and the pathogenic threshold of the expansions remain to be identified and carry importance for diagnostics and genetic counseling. We present clinical and genetic data from a UK ALS cohort and report the detailed molecular study of an atypical somatically unstable expansion of 90 repeats. Our results across different tissues provide evidence for the pathogenicity of this repeat number by showing they can somatically expand in the central nervous system to the well characterized pathogenic range. Our results support the occurrence of multiple expansion events for C9ALS/FTD.
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81
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Fukuhara S, DeRoo S, Beck J, Takayama H. Facilitation of bilateral selective antegrade cerebral perfusion with axillary cannulation and retrograde coronary sinus catheter. Perfusion 2014; 30:495-8. [PMID: 25526731 DOI: 10.1177/0267659114565707] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Over the past several decades, techniques for surgery of the aortic arch have undergone significant evolution. In addition, there have been refinements in the mechanism of cerebral protection utilized intraoperatively. However, significant practice variations in the strategy of antegrade selective cerebral perfusion continue to persist. Here, we describe a simple and easily reproducible technique for selective antegrade cerebral perfusion, utilizing axillary cannulation and retrograde coronary sinus balloon catheters.
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82
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Beck J, Ulrich CT, Gralla J, Fichtner J, Fung C, Z'Graggen W, Raabe A. EHMTI-0386. Chronic subdural hematoma and spinal cerebrospinal fluid leak and in non-geriatric patients. J Headache Pain 2014. [PMCID: PMC4182192 DOI: 10.1186/1129-2377-15-s1-j16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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83
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Owen J, Beck J, Campbell T, Adamson G, Gorham M, Thompson A, Smithson S, Rosser E, Rudge P, Collinge J, Mead S. Predictive testing for inherited prion disease: report of 22 years experience. Eur J Hum Genet 2014; 22:1351-6. [PMID: 24713662 PMCID: PMC4091984 DOI: 10.1038/ejhg.2014.42] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Revised: 11/29/2013] [Accepted: 12/18/2013] [Indexed: 11/08/2022] Open
Abstract
The inherited prion diseases (IPD) are a group of untreatable neurodegenerative diseases that segregate as autosomal dominant traits. Mutations in the prion protein gene (PRNP) were first found to be causal of IPD in 1989, before the molecular genetic characterisation of any other neurodegenerative disease. Predictive testing for IPD has subsequently been carried out at a single UK clinical and research centre for 22 years. We have analysed the uptake, consequences and factors influencing the decision for predictive testing over this period. In all, 104 predictive tests were done on individuals at 50% risk, compared with 135 positive diagnostic tests. Using genealogies from clinical records, we estimated that 23% of those at 50% risk have completed testing. There was no gender bias, and unsurprisingly, there was a slight excess of normal results because some patients were already partly through the risk period because of their age. An unexpectedly large number of patients developed symptoms shortly after predictive testing, suggesting that undisclosed early symptoms of disease may prompt some patients to come forward for predictive testing. Fifteen per cent of predictive tests were done >10 years after molecular diagnosis in a proband. A strong determinant of the timing of testing in these patients was a second diagnosis in the family. IPD may generate infectious prions that might be transmitted by surgical procedures; however, we found no evidence that public health information influenced decisions about predictive testing.
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84
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Beck J, Fichtner J, Ulrich CT, Fung C, Schucht P, Jilch A, Raabe A. EHMTI-0385. Dynamic ultrasound of the optic nerve sheath diameter in patients with orthostatic headaches: a new diagnostic tool in patients with spontaneous intracranial hypotension. J Headache Pain 2014. [PMCID: PMC4182276 DOI: 10.1186/1129-2377-15-s1-j4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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85
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Beck J, Ulrich CT, Gralla J, Fung C, Fichtner J, Z'Graggen W, Raabe A. EHMTI-0383. Spontaneous intracranial hypotension due to calcified micro-spurs perforating the dura – a case series. J Headache Pain 2014. [PMCID: PMC4182041 DOI: 10.1186/1129-2377-15-s1-j17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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86
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Floren C, Wiedemann I, Brenig B, Schütz E, Beck J. Species identification and quantification in meat and meat products using droplet digital PCR (ddPCR). Food Chem 2014; 173:1054-8. [PMID: 25466124 DOI: 10.1016/j.foodchem.2014.10.138] [Citation(s) in RCA: 115] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 10/24/2014] [Accepted: 10/25/2014] [Indexed: 11/29/2022]
Abstract
Species fraud and product mislabelling in processed food, albeit not being a direct health issue, often results in consumer distrust. Therefore methods for quantification of undeclared species are needed. Targeting mitochondrial DNA, e.g. CYTB gene, for species quantification is unsuitable, due to a fivefold inter-tissue variation in mtDNA content per cell resulting in either an under- (-70%) or overestimation (+160%) of species DNA contents. Here, we describe a reliable two-step droplet digital PCR (ddPCR) assay targeting the nuclear F2 gene for precise quantification of cattle, horse, and pig in processed meat products. The ddPCR assay is advantageous over qPCR showing a limit of quantification (LOQ) and detection (LOD) in different meat products of 0.01% and 0.001%, respectively. The specificity was verified in 14 different species. Hence, determining F2 in food by ddPCR can be recommended for quality assurance and control in production systems.
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87
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Giesen U, Beck J. New measurements of W-values for protons and alpha particles. RADIATION PROTECTION DOSIMETRY 2014; 161:23-26. [PMID: 24262925 DOI: 10.1093/rpd/nct282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The increasing importance of ion beams in cancer therapy and the lack of experimental data for W-values for protons and heavy ions in air require new measurements. A new experimental set-up was developed at PTB and consistent measurements of W-values in argon, nitrogen and air for protons and alpha particles with energies from 0.7 to 3.5 MeV u(-1) at PTB, and for carbon ions between 3.6 and 7.0 MeV u(-1) at GSI were carried out. This publication concentrates on the measurements with protons and alpha particles at PTB. The experimental methods and the determination of corrections for recombination effects, beam-induced background radiation and additional effects are presented.
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88
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Knecht U, Slotboom J, Ochsenbein A, Beck J, Pica A, Wiest R. P16.19 * THE EFFECTS OF BEVACIZUMAB ON MR-IMAGING AND 1H-MR-SPECTROSCOPY (MRS) IN PATIENTS WITH HIGH GRADE GLIOMAS. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou174.315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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89
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Hensman Moss D, Poulter M, Beck J, Polke J, Campbell T, Adamson G, Hehir J, Mudanohwo E, McColgan P, Wild E, Haworth A, Sweeney M, Houlden H, Mead S, Tabrizi S. K11 C9orf72 Expansions Are The Most Common Genetic Cause Of Huntington's Disease Phenocopy Presentations In A Uk Cohort. J Neurol Psychiatry 2014. [DOI: 10.1136/jnnp-2014-309032.235] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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90
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Weinberg A, Miko B, Beck J, Bacchetta M, Mongero L. Is it safe to leave an ECMO circuit primed? Perfusion 2014; 30:47-9. [DOI: 10.1177/0267659114546945] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Extracorporeal membrane oxygenation (ECMO) is a means of life support for failing patients who require extreme life-saving measures due to failure of their heart, lungs or both organs. In a patient suffering cardiac arrest, the faster circulation via cardiopulmonary resuscitation (CPR) can be instituted the better the outcome is. If an ECMO circuit needs to be built and primed it may add significant minutes to the response time. The purpose of this study is to test for any growth in primed ECMO circuits at given time intervals to prove the safety of leaving an ECMO circuit primed. This, in turn, may lead to decreased response time, with an arrest and the placement of the arresting patient on ECMO. Five ECMO circuits were set up, primed and sampled for bacterial growth at 0, 24, 48 and 72 hours and then at one-week intervals, with an end point of four weeks. No bacterial growth was found at any point during the sampling process.
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91
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Slattery C, Beck J, Harper L, Adamson G, Abdi Z, Uphill J, Campbell T, Druyeh R, Mahoney C, Rohrer J, Kenny J, Lowe J, Leung K, Barnes J, Clegg S, Blair M, Nicholas J, Guerreiro R, Rowe J, Ponto C, Zerr I, Kretzschmar H, Gambetti P, Crutch S, Warren J, Rossor M, Fox N, Collinge J, Schott J, Mead S. TREM2 VARIANTS INCREASE RISK OF TYPICAL EARLY-ONSET ALZHEIMER'S DISEASE BUT NOT OF PRION OR FRONTOTEMPORAL DEMENTIA. Journal of Neurology, Neurosurgery and Psychiatry 2014. [DOI: 10.1136/jnnp-2014-308883.7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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92
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Bredel M, Ferrarese R, Harsh GR, Yadav AK, Bug E, Maticzka D, Reichardt W, Masilamani AP, Dai F, Kim H, Hadler M, Scholtens DM, Yu ILY, Beck J, Srinivasasainagendra V, Costa F, Baxan N, Pfeifer D, Elverfeldt DV, Backofen R, Weyerbrock A, Duarte CW, He X, Prinz M, Chandler JP, Vogel H, Chakravarti A, Rich JN, Carro MS. ABERRANT SPLICING OF A BRAIN-ENRICHED ALTERNATIVE EXON ELIMINATES TUMOR SUPPRESSOR FUNCTION AND PROMOTES ONCOGENE FUNCTION DURING BRAIN TUMORIGENESIS. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou206.71] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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93
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Beck J, Fung C, Ulrich C, Fichtner J, Schucht P, Z'Graggen W, Raabe A. Spinal Cerebrospinal Fluid Leak as the Cause of Chronic Subdural Hematomas in Young Patients. J Neurol Surg A Cent Eur Neurosurg 2014. [DOI: 10.1055/s-0034-1383773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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94
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Ulrich C, Fung C, Fichtner J, Schucht P, Z´Graggen W, Raabe A, Beck J. Occult, Dura-Perforating Disc Spurs as a Treatable Cause in ‘Spontaneous’ Intracranial Hypotension. J Neurol Surg A Cent Eur Neurosurg 2014. [DOI: 10.1055/s-0034-1383807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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95
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Fung C, Murek M, Balmer M, Abu Isa J, Z'Graggen W, Ozdoba C, Gralla J, Jakob S, Takala J, Beck J, Raabe A. Reconsidering the Logic of WFNS Grading in Patients with Severe Subarachnoid Hemorrhage. J Neurol Surg A Cent Eur Neurosurg 2014. [DOI: 10.1055/s-0034-1383785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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96
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Schucht P, Seidel K, Murek M, Stieglitz L, Urwyler N, Wiest R, Steinlin M, Leibundgut K, Raabe A, Beck J. Low Threshold Monopolar Motor Mapping for Resection of Motor-eloquent Brain Lesions in Children and Adolescents. J Neurol Surg A Cent Eur Neurosurg 2014. [DOI: 10.1055/s-0034-1383753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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97
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Stieglitz L, Fung C, Murek M, Fichtner J, Schucht P, Beck J. Long-term Outcome after Reimplantation of Autologous Bone Flaps in a Consecutive Series of 100 Patients. J Neurol Surg A Cent Eur Neurosurg 2014. [DOI: 10.1055/s-0034-1383768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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98
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Porz N, Bauer S, Pica A, Schucht P, Beck J, Kumar Verma R, Slotboom J, Reyes M, Wiest R. Multi-modal Glioblastoma Segmentation: Man versus Machine. J Neurol Surg A Cent Eur Neurosurg 2014. [DOI: 10.1055/s-0034-1383771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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99
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Schär R, Fiechter M, Z'Graggen W, Raabe A, Beck J. Is Fast Track Management after Elective Cranial Surgery Safe and can it Replace Routine Early Postoperative Computed Tomography? J Neurol Surg A Cent Eur Neurosurg 2014. [DOI: 10.1055/s-0034-1383769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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100
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Fichtner J, Jilch A, Ulrich C, Fung C, Schucht P, Raabe A, Beck J. Dynamic Ultrasound of the Optic Nerve Sheath Diameter in Spontaneous Intracranial Hypotension. J Neurol Surg A Cent Eur Neurosurg 2014. [DOI: 10.1055/s-0034-1383762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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