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Köferstein R, Arnold M, Robl C. Front Cover: Crystal Structure and Characterization of Two Layered Copper(II) Coordination Polymers with Anions of 3-Phosphonopropionic Acid and ( RS
)-2-Phosphonobutyric Acid (Z. Anorg. Allg. Chem. 4/2018). Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201870041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Köferstein R, Arnold M, Robl C. Crystal Structure and Characterization of Two Layered Copper(II) Coordination Polymers with Anions of 3-Phosphonopropionic Acid and ( RS
)-2-Phosphonobutyric Acid. Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201700453] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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De Marchis GM, Katan M, Barro C, Fladt J, Traenka C, Seiffge DJ, Hert L, Gensicke H, Disanto G, Sutter R, Peters N, Sarikaya H, Goeggel-Simonetti B, El-Koussy M, Engelter S, Lyrer PA, Christ-Crain M, Arnold M, Kuhle J, Bonati LH. Serum neurofilament light chain in patients with acute cerebrovascular events. Eur J Neurol 2018; 25:562-568. [PMID: 29281157 DOI: 10.1111/ene.13554] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 12/18/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND PURPOSE Serum neurofilaments are markers of axonal injury. We addressed their diagnostic and prognostic role in acute ischemic stroke (AIS) and transient ischemic attack (TIA). METHODS Nested within a prospective cohort study, we compared levels of serum neurofilament light chain (sNfL) drawn within 24 h from symptom onset in patients with AIS or TIA. Patients without magnetic resonance imaging on admission were excluded. We assessed whether sNfL was associated with: (i) clinical severity on admission, (ii) diagnosis of AIS vs. TIA, (iii) infarct size on admission magnetic resonance diffusion-weighted imaging (MR-DWI) and (iv) functional outcome at 3 months. RESULTS We analyzed 504 patients with AIS and 111 patients with TIA. On admission, higher National Institutes of Health Stroke Scale (NIHSS) scores were associated with higher sNfL: NIHSS score < 7, 13.1 pg/mL [interquartile range (IQR), 5.3-27.8]; NIHSS score 7-15, 16.7 pg/mL (IQR, 7.4-34.9); and NIHSS score > 15, 21.0 pg/mL (IQR, 9.3-40.4) (P = 0.01). Compared with AIS, patients with TIA had lower sNfL levels [9.0 pg/mL (95% confidence interval, 4.0-19.0) vs. 16.0 pg/mL (95% confidence interval, 7.3-34.4), P < 0.001], also after adjusting for age and NIHSS score (P = 0.006). Among patients with AIS, infarct size on admission MR-DWI was not associated with sNfL, either in univariate analysis (P = 0.15) or after adjusting for age and NIHSS score on admission (P = 0.56). Functional outcome 3 months after stroke was not associated with sNfL after adjusting for established predictors. CONCLUSIONS In conclusion, among patients admitted within 24 h of AIS or TIA onset, admission sNfL levels were associated with clinical severity on admission and TIA diagnosis, but not with infarct size on MR-DWI acquired on admission or functional outcome at 3 months.
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Nondela B, Arnold M, Cox S. Novel technique for endoscopic retrieval of a ring-shaped gastric foreign body. S AFR J SURG 2018. [DOI: 10.17159/2078-5151/2018/v56n3a2390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Trischler J, Lieb A, Arnold M, Schulze J, Rosewich M, Schubert R, Bottoli I, Zielen S. Omalizumab effectively protects against early and late allergic responses in asthma after 4 weeks. Allergy 2017; 72:1912-1915. [PMID: 28581121 DOI: 10.1111/all.13217] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/31/2017] [Indexed: 11/29/2022]
Abstract
BACKGROUND Omalizumab is licensed for therapy in severe allergic asthma with an effect demonstrated after 8 weeks or longer treatment. As new applications for omalizumab demand precise knowledge of the onset of effects, the objective of this study was to determine the time course of the early (EAR) and late allergic reaction (LAR). MATERIALS AND METHODS Ten patients (IgE>300 IU/mL and <700 IU/mL) with a significant response to allergen challenge were treated with omalizumab according to the approved dosing table. Bronchial allergen provocations (BAP) were repeated at weeks 1, 2, 4, and 8. RESULTS EAR was significantly reduced after 4 weeks (ΔFEV1 28% vs 11%; P<.001), eNO (86 vs 53 ppb; P<.05) and basophil activation after 2 weeks (CD63 expression 79% vs 32%, P<.05) and LAR already after 1 week (ΔFEV1 26% vs 13%, P<.05). CONCLUSION These results demonstrate the onset of protective effects earlier than previously determined, potentially improving seasonal utilization and combination with immunotherapy.
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Marwan M, Mekkhala N, Göller M, Röther J, Bittner D, Schuhbaeck A, Hell M, Muschiol G, Kolwelter J, Feyrer R, Schlundt C, Achenbach S, Arnold M. Leaflet thrombosis following transcatheter aortic valve implantation. J Cardiovasc Comput Tomogr 2017; 12:8-13. [PMID: 29195844 DOI: 10.1016/j.jcct.2017.11.002] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Revised: 10/29/2017] [Accepted: 11/07/2017] [Indexed: 10/18/2022]
Abstract
BACKGROUND Transcatheter aortic valve implantation (TAVI) is increasingly being offered to high-risk patients with symptomatic aortic valve stenosis. Recent reports have suggested a high incidence of subclinical leaflet thrombosis following bioprosthestic aortic valve replacement. We report the frequency and clinical presentation of leaflet thrombosis identified by cardiac CT in patients referred for follow-up contrast enhanced CT angiography following TAVI. METHODS 91 consecutive patients referred for follow-up contrast-enhanced CT angiography following TAVI were screened for inclusion in this analysis. Out of these, 13 patients were excluded. All CT examinations were performed using a 2nd or a 3rd generation dual-source system (Somatom Definition Flash/Force, Forchheim, Germany). In all patients, retrospectively ECG-gated spiral acquisition with tube modulation was performed to allow for assessment of leaflet motion. All prostheses were analyzed for presence of leaflet thrombosis defined as hypo-attenuated leaflet thickening with or without leaflet restriction. Post-procedural antithrombotic regimen as well as symptom status was documented in all patients. RESULTS 78 consecutive patients (35 males, 81 ± 4 years) were analyzed. TAVI had been performed in all patients (76 transfemoral access, 2 transapical access) with either balloon-expandable prostheses (4 Sapien XT, 64 Sapien 3) or self-expandable prostheses (5 SJM Portico, 5 Symetis Acurate). Follow-up CT angiography was performed at a median of 4 months following index procedure (Interquartile range 1 month). Leaflet thrombosis was detected in 18 patients (23%, 14 Sapien 3, 1 Sapien XT, 2 SJM Portico, 1 Symetis Acurate). In patients with leaflet thickening on CT, only 11% were on either oral anticoagulation or new oral anticoagulants versus 50% for patients with no leaflet thickening (p 0.002). In patients with leaflet thrombosis, 3 leaflets were affected in 5 patients, 2 leaflets in 5 patients and in 8 patient only 1 leaflet was affected. Clinical symptoms (angina, dyspnea or both) were reported in 2/18 patients with leaflet thrombosis (11%) and in both patients a significant increase of the mean echocardiographic gradient over the prosthesis was documented. The peak and mean echocardiographic gradients obtained at the day of CT examination was significantly higher in symptomatic patients versus asymptomatic patients (peak 46 ± 7 vs. 23 ± 11 mmHg, mean 29 ± 7 vs. 12 ± 6 mmHg, p = 0.01 and 0.002, respectively). Follow-up CT was available for 4 patients with complete resolution of the hypo-attenuated leaflet thickening following treatment. CONCLUSION Leaflet thrombosis following TAVI is a relatively frequent finding in patients referred for contrast enhanced CT angiography following TAVI. In the majority of patients it follows a subclinical course and is substantially more frequent in individuals who are not on oral anticoagulation. However, in patients with relevant increase in prosthetic gradients, symptomatic presentations are possible.
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Arnold M, Zhao S, Ma S, Giuliani F, Hansen U, Cobb JP, Abel RL, Boughton O. Microindentation - a tool for measuring cortical bone stiffness? A systematic review. Bone Joint Res 2017; 6:542-549. [PMID: 28924020 PMCID: PMC5631024 DOI: 10.1302/2046-3758.69.bjr-2016-0317.r2] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 07/07/2017] [Indexed: 01/26/2023] Open
Abstract
Objectives Microindentation has the potential to measure the stiffness of an individual patient’s bone. Bone stiffness plays a crucial role in the press-fit stability of orthopaedic implants. Arming surgeons with accurate bone stiffness information may reduce surgical complications including periprosthetic fractures. The question addressed with this systematic review is whether microindentation can accurately measure cortical bone stiffness. Methods A systematic review of all English language articles using a keyword search was undertaken using Medline, Embase, PubMed, Scopus and Cochrane databases. Studies that only used nanoindentation, cancellous bone or animal tissue were excluded. Results A total of 1094 abstracts were retrieved and 32 papers were included in the analysis, 20 of which used reference point indentation, and 12 of which used traditional depth-sensing indentation. There are several factors that must be considered when using microindentation, such as tip size, depth and method of analysis. Only two studies validated microindentation against traditional mechanical testing techniques. Both studies used reference point indentation (RPI), with one showing that RPI parameters correlate well with mechanical testing, but the other suggested that they do not. Conclusion Microindentation has been used in various studies to assess bone stiffness, but only two studies with conflicting results compared microindentation with traditional mechanical testing techniques. Further research, including more studies comparing microindentation with other mechanical testing methods, is needed before microindentation can be used reliably to calculate cortical bone stiffness. Cite this article: M. Arnold, S. Zhao, S. Ma, F. Giuliani, U. Hansen, J. P. Cobb, R. L. Abel, O. Boughton. Microindentation – a tool for measuring cortical bone stiffness? A systematic review. Bone Joint Res 2017;6:542–549. DOI: 10.1302/2046-3758.69.BJR-2016-0317.R2.
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Jarvis M, Arnold M, Ott J, Pant K, Prabhakarpandian B, Mitragotri S. Microfluidic co-culture devices to assess penetration of nanoparticles into cancer cell mass. Bioeng Transl Med 2017; 2:268-277. [PMID: 29313036 PMCID: PMC5689499 DOI: 10.1002/btm2.10079] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Revised: 08/09/2017] [Accepted: 08/21/2017] [Indexed: 01/18/2023] Open
Abstract
In vitro and in vivo assessment of safety and efficacy are the essential first steps in developing nanoparticle-based therapeutic systems. However, it is often challenging to use the knowledge gained from in vitro studies to predict the outcome of in vivo studies since the complexity of the in vivo environment, including the existence of flow and a multicellular environment, is often lacking in traditional in vitro models. Here, we describe a microfluidic co-culture model comprising 4T1 breast cancer cells and EA.hy926 endothelial cells under physiological flow conditions and its utilization to assess the penetration of therapeutic nanoparticles from the vascular compartment into a cancerous cell mass. Camptothecin nanocrystals (∼310 nm in length), surface-functionalized with PEG or folic acid, were used as a test nanocarrier. Camptothecin nanocrystals exhibited only superficial penetration into the cancerous cell mass under fluidic conditions, but exhibited cytotoxicity throughout the cancerous cell mass. This likely suggests that superficially penetrated nanocrystals dissolve at the periphery and lead to diffusion of molecular camptothecin deep into the cancerous cell mass. The results indicate the potential of microfluidic co-culture devices to assess nanoparticle-cancerous cell interactions, which are otherwise difficult to study using standard in vitro cultures.
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Murphy G, McCormack V, Abedi-Ardekani B, Arnold M, Camargo MC, Dar NA, Dawsey SM, Etemadi A, Fitzgerald RC, Fleischer DE, Freedman ND, Goldstein AM, Gopal S, Hashemian M, Hu N, Hyland PL, Kaimila B, Kamangar F, Malekzadeh R, Mathew CG, Menya D, Mulima G, Mwachiro MM, Mwasamwaja A, Pritchett N, Qiao YL, Ribeiro-Pinto LF, Ricciardone M, Schüz J, Sitas F, Taylor PR, Van Loon K, Wang SM, Wei WQ, Wild CP, Wu C, Abnet CC, Chanock SJ, Brennan P. International cancer seminars: a focus on esophageal squamous cell carcinoma. Ann Oncol 2017; 28:2086-2093. [PMID: 28911061 PMCID: PMC5834011 DOI: 10.1093/annonc/mdx279] [Citation(s) in RCA: 133] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The International Agency for Research on Cancer (IARC) and the US National Cancer Institute (NCI) have initiated a series of cancer-focused seminars [Scelo G, Hofmann JN, Banks RE et al. International cancer seminars: a focus on kidney cancer. Ann Oncol 2016; 27(8): 1382-1385]. In this, the second seminar, IARC and NCI convened a workshop in order to examine the state of the current science on esophageal squamous cell carcinoma etiology, genetics, early detection, treatment, and palliation, was reviewed to identify the most critical open research questions. The results of these discussions were summarized by formulating a series of 'difficult questions', which should inform and prioritize future research efforts.
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Marwan M, Bittner D, Hell M, Gitsioudis G, Roether J, Schuhbaeck A, Feyrer R, Arnold M, Achenbach S. P4329CT-derived left ventricular global strain in aortic stenosis patients referred for transcatheter aortic valve replacement: a comparative study pre and post intervention. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p4329] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Bullock KD, Crites BR, Burris WR, Lehmkuhler J, Anderson L, Arnold M, Laurent K, Knight B, Thompson B, Prater P. 258 Effectiveness of a certification program to facilitate practice change in cattle handling and care. J Anim Sci 2017. [DOI: 10.2527/asasann.2017.258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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McKinley R, Häni L, Gralla J, El-Koussy M, Bauer S, Arnold M, Fischer U, Jung S, Mattmann K, Reyes M, Wiest R. Fully automated stroke tissue estimation using random forest classifiers (FASTER). J Cereb Blood Flow Metab 2017; 37:2728-2741. [PMID: 27798267 PMCID: PMC5536784 DOI: 10.1177/0271678x16674221] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Several clinical trials have recently proven the efficacy of mechanical thrombectomy for treating ischemic stroke, within a six-hour window for therapy. To move beyond treatment windows and toward personalized risk assessment, it is essential to accurately identify the extent of tissue-at-risk ("penumbra"). We introduce a fully automated method to estimate the penumbra volume using multimodal MRI (diffusion-weighted imaging, a T2w- and T1w contrast-enhanced sequence, and dynamic susceptibility contrast perfusion MRI). The method estimates tissue-at-risk by predicting tissue damage in the case of both persistent occlusion and of complete recanalization. When applied to 19 test cases with a thrombolysis in cerebral infarction grading of 1-2a, mean overestimation of final lesion volume was 30 ml, compared with 121 ml for manually corrected thresholding. Predicted tissue-at-risk volume was positively correlated with final lesion volume ( p < 0.05). We conclude that prediction of tissue damage in the event of either persistent occlusion or immediate and complete recanalization, from spatial features derived from MRI, provides a substantial improvement beyond predefined thresholds. It may serve as an alternative method for identifying tissue-at-risk that may aid in treatment selection in ischemic stroke.
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Mueller L, Pult F, Meisterernst J, Heldner MR, Mono ML, Kurmann R, Buehlmann M, Fischer U, Mattle HP, Arnold M, Mordasini P, Gralla J, Schroth G, El-Koussy M, Jung S. Impact of intravenous thrombolysis on recanalization rates in patients with stroke treated with bridging therapy. Eur J Neurol 2017. [DOI: 10.1111/ene.13330] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Anneken L, Bal Z, Achenbach S, Arnold M. P857Comparison of pulmonary vein isolation using a laser balloon and using an open irrigated mapping and ablation catheter (nMARQ). Europace 2017. [DOI: 10.1093/ehjci/eux151.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Slezak A, Kurmann R, Oppliger L, Broeg-Morvay A, Gralla J, Schroth G, Mattle HP, Arnold M, Fischer U, Jung S, Greif R, Neff F, Mordasini P, Mono ML. Impact of Anesthesia on the Outcome of Acute Ischemic Stroke after Endovascular Treatment with the Solitaire Stent Retriever. AJNR Am J Neuroradiol 2017; 38:1362-1367. [PMID: 28473340 DOI: 10.3174/ajnr.a5183] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 02/14/2017] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE General anesthesia during endovascular treatment of acute ischemic stroke may have an adverse effect on outcome compared with conscious sedation. The aim of this study was to examine the impact of the type of anesthesia on the outcome of patients with acute ischemic stroke treated with the Solitaire stent retriever, accounting for confounding factors. MATERIALS AND METHODS Four-hundred one patients with consecutive acute anterior circulation stroke treated with a Solitaire stent retriever were included in this prospective analysis. Outcome was assessed after 3 months by the modified Rankin Scale. RESULTS One-hundred thirty-five patients (31%) underwent endovascular treatment with conscious sedation, and 266 patients (69%), with general anesthesia. Patients under general anesthesia had higher NIHSS scores on admission (17 versus 13, P < .001) and more internal carotid artery occlusions (44.6% versus 14.8%, P < .001) than patients under conscious sedation. Other baseline characteristics such as time from symptom onset to the start of endovascular treatment did not differ. Favorable outcome (mRS 0-2) was more frequent with conscious sedation (47.4% versus 32%; OR, 0.773; 95% CI, 0.646-0.925; P = .002) in univariable but not multivariable logistic regression analysis (P = .629). Mortality did not differ (P = .077). Independent predictors of outcome were age (OR, 0.95; 95% CI, 0.933-0.969; P < .001), NIHSS score (OR, 0.894; 95% CI, 0.855-0.933; P < .001), time from symptom onset to the start of endovascular treatment (OR, 0.998; 95% CI, 0.996-0.999; P = .011), diabetes mellitus (OR, 0.544; 95% CI, 0.305-0.927; P = .04), and symptomatic intracerebral hemorrhage (OR, 0.109; 95% CI, 0.028-0.428; P = .002). CONCLUSIONS In this single-center study, the anesthetic management during stent retriever thrombectomy with general anesthesia or conscious sedation had no impact on the outcome of patients with large-vessel occlusion in the anterior circulation.
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Gruber S, Bozsaky E, Arnold M, Pfaffinger S, Hetzendorfer S, Gernedl V, Rohorzka A, Kowald L, Morava S, Mayer J, Kuess P, Dörr W. OC-0119: Dermatan sulfate mitigates radiation-induced oral mucositis (mouse) – biological mechanisms. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)30563-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Huibers A, Hendrikse J, Brown M, Pegge S, Arnold M, Moll F, Kapelle L, de Borst G. Upper Extremity Blood Pressure Difference in Patients Undergoing Carotid Revascularisation. Eur J Vasc Endovasc Surg 2017; 53:153-157. [DOI: 10.1016/j.ejvs.2016.11.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Accepted: 11/23/2016] [Indexed: 10/20/2022]
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Arnold M, Adamkin D, Radmacher P. Improving fortification with weekly analysis of human milk for VLBW infants. J Perinatol 2017; 37:194-196. [PMID: 27684418 DOI: 10.1038/jp.2016.170] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 08/29/2016] [Accepted: 08/31/2016] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To track individual mother's macronutrient variability in preterm human milk (HM) over 6 weeks of lactation. STUDY DESIGN This was a prospective, observational study of mother's own milk from women who delivered a very low birth weight infant (<1500 g). A single, random maternal breast milk sample was collected and analyzed weekly for 6 consecutive weeks. Analysis was by mid-infrared spectroscopy. RESULTS Twenty women consented to provide at least one milk sample. Fat, protein and energy content varied widely among mothers and by week of lactation. Energy content ranged from 9.5 to 30.4 kcal oz-1 across the study period. Twenty-five percent of all samples had an energy content <17 kcal oz-1. Protein content ranged from 1.1 to 2.8 g dl-1 in the first week. Sixty-three percent of all samples had a protein content <1.5 g dl-1. Fat and energy showed trends of increasing concentrations, whereas protein showed the expected decline over time. Lactose showed little variability by woman or by week of lactation. CONCLUSION HM fat and protein content varied widely by individual woman over time. Week-to-week variability in fat and protein can impact growth. The ability to analyze HM is helpful to improve fortification of HM.
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Köferstein R, Arnold M, Robl C. Synthesis, Crystal Structure, and Characterization of Two Novel One- and Two-Dimensionally Polymeric Copper(II) Phosphonoacetates. Z Anorg Allg Chem 2017. [DOI: 10.1002/zaac.201600457] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Köferstein R, Arnold M, Robl C. Cover Picture: Synthesis, Crystal Structure, and Characterization of Two Novel One- and Two-Dimensionally Polymeric Copper(II) Phosphonoacetates (Z. Anorg. Allg. Chem. 3/2017). Z Anorg Allg Chem 2017. [DOI: 10.1002/zaac.201770031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Ringelstein E, Dittrich R, Sitzer M, Arnold M, Haring HP, Frese A. Spontane Dissektionen der extra- und intrakraniellen hirnversorgenden Arterien. AKTUELLE NEUROLOGIE 2016. [DOI: 10.1055/s-0042-114742] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Köferstein R, Arnold M, Robl C. A Novel Three-Dimensional Copper(II) 1,2-Ethylenediphosphonate Framework with Channel-like Voids. Z Anorg Allg Chem 2016. [DOI: 10.1002/zaac.201600248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Lövblad KO, Kiefer C, Oswald H, Arnold M, Nedeltchev K, Mattle H, Schroth G. Imaging the Ischemic Penumbra. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/197140090301600534] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Nedeltchev K, Arnold M, Schwerzmann M, Nirkko A, Lagger F, Mattle HP, Sturzenegger M. Cerebrovascular Response to Repetitive Visual Stimulation in Interictal Migraine with Aura. Cephalalgia 2016; 24:700-6. [PMID: 15315525 DOI: 10.1111/j.1468-2982.2004.00740.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Cortical hypersensitivity and absent habituation to different stimuli have been observed in migraine patients. These features might also be transmitted to the cerebral vasoreactivity, but results are conflicting so far. Transcranial Doppler ultrasound (TCD) was used to assess cerebral blood flow velocity (CBFV) changes in the middle (MCA) and posterior cerebral arteries (PCA) in relation to repetitive checkerboard visual stimulation. Stimulation consisted of 10 consecutive cycles, each comprising 10 s stimulation and 10 s rest. TCD recordings were analysed using stimulus-related averaging algorithm. Data of 19 interictal migraineurs with aura were compared to those of 19 headache-free healthy volunteers. The CBFV increase in PCA and in MCA during visual stimulation was significantly larger and steeper in migraineurs than in controls ( P = 0.017 and P = 0.005). The response in PCA remained stable over the 10 stimulation cycles, both in migraineurs and in controls. The response in MCA was stable only in migraineurs. In controls it decreased over the last 5 stimulation cycles compared with the first 5 cycles ( P = 0.04). Migraineurs with aura exhibit a larger cerebrovascular response to repetitive visual stimulation compared to headache-free subjects. A reduced adaptation to environmental stimuli in migraine is suggested, since there was no habituation in migraineurs in contrast to healthy controls.
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Gruber S, Bozsaky E, Frings K, Arnold M, Gernedl V, Hetzendorfer S, Mayer J, Morava S, Pfaffinger S, Kuess P, Dörr W. EP-2046: Modulation of radiation-induced oral mucositis (mouse) by dermatan sulfate. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)33297-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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