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Seiler C, Rueda G, Miranda P, Nardelli A, Borojevic R, Schuppan D, Moayyedi P, Verdu E, Collins S, Pinto-Sanchez MI, Bercik P. A19 INVESTIGATING MECHANISMS THAT DRIVE SYMPTOMS IN IRRITABLE BOWEL SYNDROME PATIENTS WITH PERCEIVED GLUTEN SENSITIVITY. J Can Assoc Gastroenterol 2023. [PMCID: PMC9991165 DOI: 10.1093/jcag/gwac036.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/09/2023] Open
Abstract
Background Patients with irritable bowel syndrome (IBS) often report gastrointestinal symptoms after consuming wheat and gluten-containing foods. It is, however, unclear whether gluten is the main driver of symptoms, as other immunogenic peptides, such as amylase trypsin inhibitors (ATI), poorly digestible fiber (inulin, part of FODMAP) or even the nocebo effect may contribute to symptom generation. Purpose To evaluate whether whole wheat containing ATIs and/or purified gluten trigger gastrointestinal symptoms compared to nocebo in patients with IBS adopting a gluten-free diet (GFD). Method We conducted a double-blind, randomized, nocebo-controlled crossover study in adult IBS patients (Rome IV criteria) who previously perceived improvement of symptoms while on a GFD. The study was approved by the Hamilton Research Ethics Board (HiREB #4367). Participants were challenged for 7 days with whole wheat, purified gluten, and nocebo (gluten-free flour) added to low FODMAP cereal bars. Each challenge was followed by a 2-week washout. Patients remained on a GFD throughout the study, diet adherence was assessed by a dietitian and stool gluten immunogenic peptides (GIP; Biomedal). Gastrointestinal symptoms were assessed by IBS Symptom Severity Score (IBS-SSS); increases >50 points were considered a significant worsening. Blood samples were collected to assess immune markers and celiac (HLA DQ2, DQ8 and DQ7) genotype. Statistical comparisons used Friedman rank sum tests and paired Wilcoxon signed rank tests. Result(s) Twenty-nine IBS patients (27 female, mean age=42, SD=14.4 years) were enrolled in the study; 1 dropped. Similar proportions of patients reacted symptomatically to wheat (11/28, 39.3%), gluten (10/28, 35.7%) and nocebo (8/28, 28.6%). However, there was an overall significant increase in IBS symptoms after wheat (+39.5 on IBS-SSS; p=0.030) but not after gluten (+27.5; p=0.051) or nocebo (+5.5; p=0.236) challenges (Figure 1). Ten participants experienced IBS-SSS symptoms >175 during baseline and did not worsen further during the challenges. TNF-α trended from 1.35 pg/mL after nocebo, 1.47 pg/mL after gluten, to 1.57 pg/mL after wheat; however, this was not significant. Baseline adherence to a GFD was rated excellent in 19 (68%), good in 6 (21%), and fair in 3 (11%) participants. Median GIP levels were 0.584 µg/g after wheat, 0.432 µg/g after gluten, and 0.095 µg/g after nocebo; p<0.0001. Celiac predisposition genes were present in 19/24 participants (10/24 had DQ2, 2/24 had DQ8, and 9/24 had DQ7). Image ![]()
Conclusion(s) IBS patients self-reporting wheat or gluten sensitivity had worse symptoms after whole wheat, but not purified gluten or nocebo challenge. However, similar proportions of IBS patients reacted to each intervention, suggesting that central mechanisms play an important role in symptom genesis. Furthermore, one third of patients had high symptoms during a GFD and did not react to wheat or gluten challenges, suggesting that other mechanisms are driving their IBS symptoms. Please acknowledge all funding agencies by checking the applicable boxes below CIHR, Other Please indicate your source of funding; Society for the Study of Celiac Disease (Nestle); Canadian Digestive Health Foundation Disclosure of Interest None Declared
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Affiliation(s)
- C Seiler
- Farncombe Institute, McMaster University, Hamilton, Canada
| | - G Rueda
- Farncombe Institute, McMaster University, Hamilton, Canada
| | - P Miranda
- Farncombe Institute, McMaster University, Hamilton, Canada
| | - A Nardelli
- Farncombe Institute, McMaster University, Hamilton, Canada
| | - R Borojevic
- Farncombe Institute, McMaster University, Hamilton, Canada
| | - D Schuppan
- Johannes-Gutenberg-University, Mainz, Germany,Beth Israel Deaconess Medical Center, Boston, United States
| | - P Moayyedi
- Farncombe Institute, McMaster University, Hamilton, Canada
| | - E Verdu
- Farncombe Institute, McMaster University, Hamilton, Canada
| | - S Collins
- Farncombe Institute, McMaster University, Hamilton, Canada
| | | | - P Bercik
- Farncombe Institute, McMaster University, Hamilton, Canada
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Miranda PM, Rueda GH, Seiler C, Pinto-Sanchez MI, Bercik P. A34 GLUTEN-FREE DIET IMPROVES DYSPEPTIC SYMPTOMS IN PATIENTS WITH TYPE 1 DIABETES IN WHOM CELIAC DISEASE WAS EXCLUDED. J Can Assoc Gastroenterol 2022. [PMCID: PMC8859200 DOI: 10.1093/jcag/gwab049.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Background Patients with type 1 Diabetes Mellitus (T1DM) often suffer from dyspeptic symptoms, such as abdominal pain, bloating, early satiety, nausea and vomiting. T1DM shares genetic risk factors (HLA-DQ2 and DQ8) with celiac disease, an autoimmune disorder caused by an immune reaction to gluten. Patients with concomitant T1DM and celiac disease benefit from a gluten-free diet (GFD), as it improves their symptoms, gastric emptying and small intestinal inflammation. However, it is unknown whether GFD has any benefit in patients with T1DM without celiac disease, who present with symptoms of dyspepsia or gastroparesis. Aims To investigate the role of a GFD in the management of moderate to severe dyspeptic symptoms in non-celiac patients with T1DM. Methods We enrolled 13 adult T1DM patients, in whom celiac disease was ruled out, suffering from two or more upper GI symptoms. The patients were instructed to adhere to a strict GFD for a period of 1 month, under the supervision of a dietitian. Glycemic levels were monitored by a continuous glucose monitoring device (CGM) for 2 weeks before, and at the end of the GFD period. Standardized questionnaires were used to assess upper GI symptoms (Gastroparesis Cardinal Symptoms Index, Short Form Leeds Dyspepsia questionnaire), general quality of life (Patient Assessment of Upper GI Disorders Quality of Life), and anxiety and depression (Hospital Anxiety Depression scale). Blood samples were collected to assess glycaemia (Hb1Ac) and immune markers. Scintigraphy and videofluoroscopy were used to assess gastric emptying. Results After one month on a GFD, T1DM patients reported a significant improvement in nausea (p<0.05), sensation of fullness (p<0.001) and bloating (p<0.0001). Overall dyspepsia symptoms also improved (p<0.01), with 92% of patients reporting decreased dyspepsia scores. Moreover, there was an improvement in the quality of life (p<0.01), and decreased scores of anxiety and depression (p<0.01 and p<0.05, respectively). There were no changes in gastric emptying or glycemic management metrics, such as mean glucose level, time in target, glucose variance or HbA1c levels. Interestingly, one year after the end of the study, 63.6% of participants continued to follow a GFD. The most common reason to remain on a GFD reported by these patients was “because it improved GI symptoms”. Questionnaire data collected at the follow-up demonstrated that the improvement of dyspeptic symptoms persisted after 1 year on GFD (p<0.001). Conclusions GFD improves dyspeptic symptoms in T1D patients without concomitant celiac disease, without affecting their glycemic levels or gastric emptying. Although these results need to be validated in a larger study, our data suggest that GFD could be used as a therapeutical tool for T1DM patients grappling with burdensome upper GI symptoms. ![]()
Gluten-Free diet improves dyspepsia symptoms in Type 1 Diabetes patients, after 1 month and 1 year Funding Agencies CIHR
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Affiliation(s)
- P M Miranda
- Farncombe Institute, McMaster University, Hamilton, ON, Canada
| | - G H Rueda
- Medicine, McMaster University, Hamilton, ON, Canada
| | - C Seiler
- Medical Sciences, McMaster University, Oakville, ON, Canada
| | | | - P Bercik
- Medicine, McMaster University, Hamilton, ON, Canada
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3
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Bigler MR, Buffle E, Stoller M, Grossenbacher R, Tschannen C, Seiler C. Extracardiac coronary steal induced by upper limb hyperemia: a feature of internal mammary artery arteriogenesis. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Function of naturally existing internal mammary artery (IMA)-to-coronary artery anastomoses has been shown by augmented blood supply to the coronary collateral circulation in response to IMA occlusion. Theoretically, this functional connection is invertible and can cause coronary steal, the verification of whose hypothesis would provide alternate proof to the mentioned functional evidence.
Method
This was a prospective observational study including 40 patients with chronic coronary syndrome and IMA occlusion, and 40 propensity score matched controls (placebo group) without IMA occlusion. Primary study endpoint was the inter-group difference in coronary collateral function (i.e., collateral flow index, CFI) as obtained at 30, 45 and 60 seconds following a proximal coronary artery balloon occlusion. CFI is the ratio between simultaneous mean coronary occlusive pressure divided by mean aortic pressure both subtracted by central venous pressure. To provoke a steal phenomenon, upper limb hyperemia was induced by upper arm blood pressure cuff deflation following a 5-minute supra-systolic inflation ipsilateral to the sensor-wired coronary artery with release immediately after the first CFI measurement.
Results
Between the first and the second CFI-measurement, CFI change (i.e., CFI@45s minus CFI@30s) was absent in the verum group while there was CFI recruitment in the placebo group: 0.000±0.023 and +0.009±0.013, respectively; p=0.032.
Conclusion
Among patients with artificial IMA occlusion, induction of ipsilateral upper limb hyperemia provokes extracardiac coronary steal as expressed by temporarily absent collateral recruitment as it normally takes place without upper limb hyperemia.
Funding Acknowledgement
Type of funding sources: Public Institution(s). Main funding source(s): Swiss National Sciences Foundation
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Affiliation(s)
- M R Bigler
- Bern University Hospital, Inselspital, Bern, Switzerland
| | - E Buffle
- Bern University Hospital, Inselspital, Bern, Switzerland
| | - M Stoller
- Bern University Hospital, Inselspital, Bern, Switzerland
| | | | - C Tschannen
- Bern University Hospital, Inselspital, Bern, Switzerland
| | - C Seiler
- Bern University Hospital, Inselspital, Bern, Switzerland
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Abstract
Abstract
Introduction
The electrocardiogram (ECG) is a valuable tool for the diagnosis of myocardial ischemia as it presents distinctive ischemic patterns. Deep learning methods such as convolutional neural networks (CNN) are employed to extract data-derived features and to recognize natural patterns. This study aimed to determine the optimal ischemic parameter as obtained from the highly susceptible intracoronary ECG (icECG) using pre-trained CNN.
Method
This was a retrospective observational study in 228 patients with chronic coronary syndrome. Each patient had participated in clinical trials with icECG recording and ST-segment shift measurement at the beginning (i.e.,non-ischemic) and the end (i.e.,ischemic) of a one-minute proximal coronary artery balloon occlusion establishing the reference. Using these data (893icECGs in total), two pre-trained, open-access CNN (GoogLeNet/ResNet101) were trained to recognize ischemia. The best performing CNN during training were compared with the icECG ST-segment shift for diagnostic accuracy in the detection of artificially induced myocardial ischemia.
Results
Using coronary patency or occlusion as reference for absent or present myocardial ischemia, receiver-operating-characteristics (ROC)-analysis of manually obtained icECG ST-segment shift (mV) showed an area under the ROC-curve (AUC) of 0.903±0.043 (p<0.0001, sensitivity 80%, specificity 92% at a cut-off of 0.279mV). The best performing CNN showed an AUC of 0.924 (sensitivity 93%, specificity 92%). DeLong-Test of the ROC-curves showed no significant difference between the AUCs. The underlying morphology responsible for the network prediction differed between the trained networks but was focused on the ST-segment and the T-wave for myocardial ischemia detection.
Conclusions
When tested in an experimental setting with artificially induced coronary artery occlusion, quantitative icECG ST-segment shift and CNN using pathophysiologic prediction criteria detect myocardial ischemia with similarly high accuracy.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- M R Bigler
- Bern University Hospital, Inselspital, Bern, Switzerland
| | - C Seiler
- Bern University Hospital, Inselspital, Bern, Switzerland
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Déjardin T, Carollo PS, Sipieter F, Davidson PM, Seiler C, Cuvelier D, Cadot B, Sykes C, Gomes ER, Borghi N. Nesprins are mechanotransducers that discriminate epithelial-mesenchymal transition programs. J Cell Biol 2021; 219:152020. [PMID: 32790861 PMCID: PMC7659719 DOI: 10.1083/jcb.201908036] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [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: 08/03/2019] [Revised: 04/23/2020] [Accepted: 07/21/2020] [Indexed: 01/15/2023] Open
Abstract
LINC complexes are transmembrane protein assemblies that physically connect the nucleoskeleton and cytoskeleton through the nuclear envelope. Dysfunctions of LINC complexes are associated with pathologies such as cancer and muscular disorders. The mechanical roles of LINC complexes are poorly understood. To address this, we used genetically encoded FRET biosensors of molecular tension in a nesprin protein of the LINC complex of fibroblastic and epithelial cells in culture. We exposed cells to mechanical, genetic, and pharmacological perturbations, mimicking a range of physiological and pathological situations. We show that nesprin experiences tension generated by the cytoskeleton and acts as a mechanical sensor of cell packing. Moreover, nesprin discriminates between inductions of partial and complete epithelial–mesenchymal transitions. We identify the implicated mechanisms, which involve α-catenin capture at the nuclear envelope by nesprin upon its relaxation, thereby regulating β-catenin transcription. Our data thus implicate LINC complex proteins as mechanotransducers that fine-tune β-catenin signaling in a manner dependent on the epithelial–mesenchymal transition program.
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Affiliation(s)
- Théophile Déjardin
- Université de Paris, Centre National de la Recherche Scientifique, Institut Jacques Monod, Paris, France
| | - Pietro Salvatore Carollo
- Université de Paris, Centre National de la Recherche Scientifique, Institut Jacques Monod, Paris, France
| | - François Sipieter
- Université de Paris, Centre National de la Recherche Scientifique, Institut Jacques Monod, Paris, France
| | - Patricia M Davidson
- Laboratoire Physico-Chimie Curie, Institut Curie, Centre National de la Recherche Scientifique Unité Mixte de Recherche 168, Sorbonne Universités, Université Paris Sciences et Lettres, Paris, France
| | - Cynthia Seiler
- Université de Paris, Centre National de la Recherche Scientifique, Institut Jacques Monod, Paris, France
| | - Damien Cuvelier
- Institut Curie and Institut Pierre Gilles de Gennes, Université Paris Sciences et Lettres, Centre National de la Recherche Scientifique Unité Mixte de Rercherche 144, Paris, France
| | - Bruno Cadot
- Center for Research in Myology, Institut National de la Santé et de la Recherche Médicale Unité Mixte de Recherche 974, Sorbonne Universités, Paris, France
| | - Cecile Sykes
- Laboratoire Physico-Chimie Curie, Institut Curie, Centre National de la Recherche Scientifique Unité Mixte de Recherche 168, Sorbonne Universités, Université Paris Sciences et Lettres, Paris, France
| | - Edgar R Gomes
- Center for Research in Myology, Institut National de la Santé et de la Recherche Médicale Unité Mixte de Recherche 974, Sorbonne Universités, Paris, France.,Instituto de Medecina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.,Instituto de Histologia e Biologia do Desenvolvimento, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Nicolas Borghi
- Université de Paris, Centre National de la Recherche Scientifique, Institut Jacques Monod, Paris, France
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Kassar M, Brugger N, Seiler C, Windecker S, Praz F. Doppler echocardiographic predictors of low mitral valve area after implantation of one MitraClip: time for a paradigm shift? Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
During edge-to-edge therapy using MitraClip (MC) for severe mitral regurgitation (MR) the interventional cardiologists usually rely on the mean transmitral gradient to decide if they “go for” a second clip in case of suboptimal MR reduction or to stabilise the first MC in the context of prolapse or flail leaflet. The value of this parameter to detect low mitral valve area (MVA) is unknown.
Method
During each intervention of the last two years, high quality volumes focused on the MV were acquired. Using a dedicated 3-D analysis software and a new planimetry method, we measured the MVA before and after the implantation of one MC (each orifice was evaluate independently on the most optimal plane). The usual transmitral CW-Doppler parameters (mean gradient (MG), VTI, PHT) were evaluated.
Results
We included 120 patients, 69 primary (PMR) and 51 secondary (SMR) mitral regurgitation. For all the parameters, the best model for the curve fitting was y = a + b / x and the two parameters who best correlated with the MVA after MC were PHT (R2 0.67, p=0.0001) and MG (R2 0.28, p. 0001). Looking at SMR, the correlation with PHT was even better but there was no correlation with MG. In PMR, the correlation with MG was good but still lower than with PHT (Figure 1). The ROC analysis for PHT showed an AUC of 0.948 and defined an optimal cut-off of 127ms with sensibility and specificity 91% to detect a MVA <2 cm2 after one MC.
Conclusion
The transmitral MG appears as a poor parameter to predict low MVA after the implantation of one MC, especially in SMR probably because in this population the MG depends more on the flow than on the MVA. In the contrary PHT appears as a robust parameter.
Figure 1
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- M Kassar
- Bern University Hospital, Department of Cardiology, Bern, Switzerland
| | - N Brugger
- Bern University Hospital, Department of Cardiology, Bern, Switzerland
| | - C Seiler
- Bern University Hospital, Department of Cardiology, Bern, Switzerland
| | - S Windecker
- Bern University Hospital, Department of Cardiology, Bern, Switzerland
| | - F Praz
- Bern University Hospital, Department of Cardiology, Bern, Switzerland
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7
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Bigler M, Praz F, Siontis G, Stoller M, Grossenbacher R, Tschannen C, Seiler C. Functional assessment of myocardial ischemia by intracoronary electrocardiogram. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
In patients with chronic coronary syndrome (CCS), percutaneous coronary intervention (PCI) targets hemodynamically significant stenoses, i.e., those thought to cause ischemia. The hemodynamic severity of a coronary stenosis increases with its tightness and with the myocardial mass of viable myocardium downstream of the stenosis. Besides the structural angiographic approach, assessment of functional relevance by pressure measurements (fractional flow reserve, FFR; instantaneous wave-free ratio, iFR) is recommended. However, visual angiographic assessment continues to dominate the treatment decisions for intermediate coronary lesions. Conversely, intracoronary ECG (icECG) potentially provides an inexpensive, sensitive and direct measure of myocardial ischemia.
Purpose
The goal of this study was to test the accuracy of intracoronary ECG during pharmacologic inotropic stress to determine coronary lesion severity in comparison to established physiologic indices (FFR/iFR) as well as with quantitatively determined percent diameter stenosis (%S) using biplane coronary angiography.
Method
This was a prospective, open-label study in patients with CCS. The primary study end point was the maximal change in icECG ST-segment shift during pharmacologic inotropic stress induced by dobutamine plus atropine obtained within 1 minute after the point of maximal heart rate (estimated by the formula 220 - age). IcECG was acquired by attaching an alligator clamp to the angioplasty guidewire positioned downstream of a stenosis. For the pressure-derived ratios, i.e. FFR and iFR, the coronary perfusion pressure downstream of a lesion as well as the aortic pressure were continuously recorded.
Results
One hundred patients were included in the study. Pearson-Correlation coefficient was significant between icECG and all three comparators (%S p<0.001, iFR p<0.001, FFR p<0.001). Using the FFR threshold of 0.80 defining coronary hemodynamic significance, ROC-analysis of the absolute icECG ST-segment shift showed an area under the curve (AUC) of 0.708±0.053 (p=0.0001, n=100, FFR<0.80 n=41). AUC for iFR was 0.919±0.030 (p<0.0001), for percent diameter stenosis it was 0.867±0.036 (p<0.0001).
Conclusions
During pharmacologic inotropic stress, intracoronary ECG ST-segment shift provides specific evidence for regional myocardial ischemia irrespective of the etiology and thus, provides an additional (patho-)physiologic information for decision making in borderline coronary lesions.
Funding Acknowledgement
Type of funding source: Foundation. Main funding source(s): Swiss Heart Foundation
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Affiliation(s)
- M.R Bigler
- Bern University Hospital, Cardiology, Bern, Switzerland
| | - F Praz
- Bern University Hospital, Cardiology, Bern, Switzerland
| | - G.C.M Siontis
- Bern University Hospital, Cardiology, Bern, Switzerland
| | - M Stoller
- Bern University Hospital, Cardiology, Bern, Switzerland
| | | | - C Tschannen
- Bern University Hospital, Cardiology, Bern, Switzerland
| | - C Seiler
- Bern University Hospital, Cardiology, Bern, Switzerland
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Seiler C, Kiflen M, Stefanolo JP, Bai J, Bercik P, Kelly C, Verdu E, Moayyedi P, Pinto-Sanchez MI. A108 PROBIOTICS FOR CELIAC DISEASE: A SYSTEMATIC REVIEW AND META-ANALYSIS OF RANDOMIZED CONTROLLED TRIALS. J Can Assoc Gastroenterol 2020. [DOI: 10.1093/jcag/gwz047.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Celiac disease is a chronic autoimmune disorder triggered by dietary gluten. The only available treatment for celiac disease is strict compliance to the gluten-free diet. Despite adherence to a gluten-free diet, many celiac patients still experience symptoms which may be mediated by the gut microbiota. Different studies have assessed the use of probiotics as an adjuvant treatment for celiac disease.
Aims
We performed a systematic review and meta-analysis to evaluate the efficacy of probiotics in improving gastrointestinal symptoms and quality of life in patients with celiac disease.
Methods
We searched MEDLINE (1966 to February 2019), EMBASE (1974 to February 2019), CINAHL, Web of Science, CENTRAL, DARE, and Sigle up to February 2019 for randomized controlled trials (RCTs) assessing the effects of probiotics on celiac disease. We collected data on gastrointestinal symptoms, quality of life, adverse events, serum tumor necrosis factor α (TNF-α), intestinal permeability, and microbiota composition.
Results
Out of 2831 records screened, 7 articles from 6 RCTs with a total of 279 participants were eligible for quantitative analysis. Probiotic supplementation for a minimum of 2 weeks improved gastrointestinal symptoms when assessed by the Gastrointestinal Symptoms Rating Scale (GSRS) (2 studies; 131 participants; mean difference (MD) symptom reduction: -28.7%; 95% CI -43.96 to -13.52; P=0.0002). No differences in gastrointestinal symptoms after probiotics were observed when pooling data from the GSRS, Celiac Symptoms Index (CSI), and the Celiac Disease Questionnaire (CDQ) (4 studies; 197 participants; standardized mean difference (SMD) symptom reduction: -0.48; 95% CI -1.21 to +0.25; P=0.20). TNF-α levels did not change after probiotics (SMD: -0.52; 95% CI -1.08 to +0.04; P=0.07). Levels of Bifidobacteria species increased (MD: increase by 0.85 log CFU/g; 95% CI +0.38 to +1.32 log CFU/g; P=0.0003) but there was no difference in Lactobacilli species (MD: change of 1.13 log CFU/g; 95% CI -0.67 to +2.93 log CFU/g; P=0.22) after probiotic supplementation. No difference in quality of life or adverse events was observed after probiotics. There was insufficient evidence to assess the effects of probiotics on intestinal permeability. The overall quality of the evidence ranged from very low to low.
Conclusions
Probiotics may improve gastrointestinal symptoms in patients with celiac disease; however, our confidence in these results is limited by the low quality of the evidence. Further large clinical trials with a more rigorous design are needed to improve the quality of the evidence.
Funding Agencies
None
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Affiliation(s)
- C Seiler
- McMaster University, Hamilton, ON, Canada
| | - M Kiflen
- McMaster University, Hamilton, ON, Canada
| | - J P Stefanolo
- Hospital de Gastroenterologia Dr C B Udaondo, Buenos Aires, Argentina
| | - J Bai
- Hospital de Gastroenterologia Dr C B Udaondo, Buenos Aires, Argentina
| | - P Bercik
- McMaster University, Hamilton, ON, Canada
| | - C Kelly
- Harvard Medical School, Boston, MA
| | - E Verdu
- McMaster University, Hamilton, ON, Canada
| | - P Moayyedi
- McMaster University, Hamilton, ON, Canada
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9
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Miranda PM, Rueda GH, Calo N, Seiler C, Punthakee Z, Pinto-Sanchez MI, Bercik P. A193 GLUTEN-FREE DIET IMPROVES DYSPEPSIA-LIKE SYMPTOMS IN A PILOT STUDY OF PATIENTS WITH TYPE 1 DIABETES MELLITUS. J Can Assoc Gastroenterol 2020. [DOI: 10.1093/jcag/gwz047.192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background
Patients with type 1 Diabetes Mellitus (T1DM) often suffer with gastrointestinal (GI) symptoms, such as abdominal pain, bloating, early satiety, nausea and vomiting. T1DM patients are at a higher risk to develop celiac disease, and those patient with both disorders benefit from a gluten-free diet (GFD). However, it is unknown whether GFD has any benefit in patients with T1DM without celiac disease who present with upper GI symptoms.
Aims
To investigate the role of GFD in the management of moderate to severe dyspeptic symptoms in non-celiac patients with T1DM.
Methods
We enrolled adult T1DM patients, in whom celiac disease was ruled out by serology and/or endoscopy, suffering with two or more of upper GI symptoms. The patients were instructed to undergo a strict GFD for a period of 1 month, under supervision of a dietitian. Glycemic levels were monitored by a continuous glucose monitoring device (CGM) for 2 weeks before, and for 2 weeks at the end of the GFD period. Upper GI symptoms, general quality of life, anxiety and depression were assessed using standardized questionnaires. Blood samples were collected to assess glycaemia (Hb1Ac) and lipid profiles. Scintigraphy and videofluoroscopy were used to assess gastric emptying.
Results
Seven patients finished the study so far. They reported a significant improvement in nausea (p<0.05), sensation of fullness (p<0.01), bloating (p<0.01), feeling of excessive fullness after meals (p<0.01) and having stomach visibly larger after meals (p<0.01). 5 out of the 7 patients reported an improvement in general quality of life, based on PAGI-QOL (Patient Assessment of Upper Gastrointestinal Disorders – Quality of Life), and decreased anxiety levels (HADS, Hospital Anxiety and Depression Score). There was no significant change in mean glucose level, time in target, glucose variance and HbA1c levels after GFD. However, there was a trend for less time spent in hypoglycemia, namely in those patients who experienced frequent hypoglycemia prior to GFD. Overall, there was no change in serum lipid profile or gastric emptying.
Conclusions
One month of GFD improved dyspepsia-like symptoms, general quality of life and anxiety levels in T1D patients without concomitant celiac disease. GFD also improved the blood glucose management of patients with frequent hypoglycemia. Thus, this dietary intervention appears to improve upper GI symptoms in T1D patients but the results need to be replicated in a larger patient cohort.
Funding Agencies
CIHR
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Affiliation(s)
- P M Miranda
- Farncombe Institute, McMaster University, Hamilton, ON, Canada
| | - G H Rueda
- Medicine, McMaster University, Hamilton, ON, Canada
| | - N Calo
- Farncombe Institute, McMaster University, Hamilton, ON, Canada
| | - C Seiler
- Medical Sciences, McMaster University, Oakville, ON, Canada
| | - Z Punthakee
- Farncombe Institute, McMaster University, Hamilton, ON, Canada
| | | | - P Bercik
- Medicine, McMaster University, Hamilton, ON, Canada
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10
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Bigler MR, Stoller M, Tschannen C, Grossenbacher R, Seiler C. P4583Effect of permanent right internal mammary artery occlusion on right coronary artery collateral function. a randomized controlled trial. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background
Extracardiac coronary artery supply via the pericardiophrenic branch of the internal mammary arteries (IMA) has been well documented anatomically. Recently, a proof-of-concept study has found functional relevance of these anastomoses in patients with coronary artery disease (CAD) during a brief right coronary artery (RCA) occlusion.
Purpose
The aim of the present randomized controlled, single-blind trial was to investigate the effect of permanent right IMA (RIMA) occlusion on RCA collateral flow index (CFI) and on the occurrence of angina pectoris. We hypothesized that the change in RCA CFI from baseline to follow-up examination is higher in the group of patients with than without permanent RIMA occlusion.
Methods
One hundred patients with CAD were randomly allocated (1:1) to permanent RIMA device occlusion at baseline or to no RIMA occlusion (sham control group). The primary study endpoint was CFI change in the RCA from baseline to the 6-week follow-up examination. CFI is the ratio between mean coronary occlusive and aortic pressure both subtracted by central venous pressure as obtained during a 1-minute proximal RCA balloon occlusion. RCA CFI was measured at baseline before RIMA occlusion or the sham procedure and at the follow-up invasive exam. At the end of the same occlusion, occurrence of angina pectoris was assessed. Percutaneous coronary intervention (PCI) of the RCA was deferred until after follow-up RCA CFI measurement.
Results
There were 51 patients in the RIMA occlusion (verum) group and 49 patients in the sham control group. PCI in the left coronary territory was performed at baseline for clinical reasons in 27 patients of the verum group and in 25 patients of the sham control group. There were no differences in clinical characteristics at baseline between the groups (age 68±12 years, 88 men). RCA CFI change during the 6 weeks of follow-up was equal to +0.028±0.077 in the verum group and −0.026±0.079 in the sham control group (p=0.0017). Angina pectoris during CFI measurement had disappeared at follow-up exam in 30% of the verum group and in 2% of the sham control group (p=0.0013).
Conclusions
Right coronary collateral function is augmented 6 weeks after permanent RIMA occlusion when compared to sham treatment. This manifests as less frequent angina pectoris during myocardial ischemia among patients with RIMA occlusion.
Acknowledgement/Funding
This study was supported by a grant from the Swiss National Science Foundation for Research (grant #32003B_163256/1 to CS).
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Affiliation(s)
- M R Bigler
- Bern University Hospital, Cardiology, Bern, Switzerland
| | - M Stoller
- Bern University Hospital, Cardiology, Bern, Switzerland
| | - C Tschannen
- Bern University Hospital, Cardiology, Bern, Switzerland
| | | | - C Seiler
- Bern University Hospital, Cardiology, Bern, Switzerland
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11
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Zhang M, Rough SL, Ward R, Seiler C, Wilson DI. Non-aqueous formulations for ram and screen extrusion-spheronisation. Int J Pharm 2019; 560:394-405. [PMID: 30763682 DOI: 10.1016/j.ijpharm.2019.01.075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 11/28/2018] [Revised: 01/28/2019] [Accepted: 01/31/2019] [Indexed: 10/27/2022]
Abstract
The use of non-aqueous cellulose-based formulations for extrusion-spheronisation (E-S) is investigated. A 10 wt% hydroxypropyl cellulose/isopropyl alcohol solution (HPC/IPA) was identified as a suitable sticky liquid binder for preparing non-aqueous pastes. Preliminary tests were performed on a series of pastes using a ram as well as a laboratory roller screen extruder, since the former is commonly used in batch testing and the latter replicates the shear range in a manufacturing screen extruder. Pellets with acceptable size and shape distributions were obtained with Avicel® HFE-102 NF/HPC/IPA for ram E-S, and with Avicel® RC-591/HPC/IPA for screen E-S. Further investigation was performed with calcium carbonate added as a model active pharmaceutical ingredient. Both formulations were able to generate pellets with acceptable size and shape characteristics at up to 50 wt% carbonate loading: further work is required to optimise yields.
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Affiliation(s)
- M Zhang
- University of Cambridge, Department of Chemical Engineering and Biotechnology, West Cambridge Site, Philippa Fawcett Drive, Cambridge CB3 0AS, UK
| | - S L Rough
- University of Cambridge, Department of Chemical Engineering and Biotechnology, West Cambridge Site, Philippa Fawcett Drive, Cambridge CB3 0AS, UK.
| | - R Ward
- MSD (Devlab), Hertford Rd, Hoddesdon EN11 9BU, UK
| | - C Seiler
- MSD (Devlab), Hertford Rd, Hoddesdon EN11 9BU, UK
| | - D I Wilson
- University of Cambridge, Department of Chemical Engineering and Biotechnology, West Cambridge Site, Philippa Fawcett Drive, Cambridge CB3 0AS, UK
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12
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Bigler MR, Grossenbacher R, Stoller M, Tschannen C, Seiler C. P5499Functional assessment of myocardial ischemia by intracoronary electrocardiogram. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5499] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- M R Bigler
- Bern University Hospital, Cardiology, Bern, Switzerland
| | | | - M Stoller
- Bern University Hospital, Cardiology, Bern, Switzerland
| | - C Tschannen
- Bern University Hospital, Cardiology, Bern, Switzerland
| | - C Seiler
- Bern University Hospital, Cardiology, Bern, Switzerland
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13
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Seiler C, Avila C, Khana R, Springer E, James C, Armstrong D, Marshall J, Collins SM, Pinto-Sanchez MI, Bercik P. A67 RAPID REDUCTION IN ANXIETY SCORES IN IBD PATIENTS AFTER INFLIXIMAB INFUSION IS ASSOCIATED WITH CHANGES IN KYNURENINE/TRYPTOPHAN METABOLISM. J Can Assoc Gastroenterol 2018. [DOI: 10.1093/jcag/gwy009.067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- C Seiler
- McMaster University, Hamilton, ON, Canada
| | - C Avila
- McMaster University, Hamilton, ON, Canada
| | - R Khana
- McMaster University, Hamilton, ON, Canada
| | - E Springer
- McMaster University, Hamilton, ON, Canada
| | - C James
- McMaster University, Hamilton, ON, Canada
| | | | - J Marshall
- McMaster University Medical Centre, Hamilton, ON, Canada
| | | | | | - P Bercik
- McMaster University, Hamilton, ON, Canada
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14
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Gayrard C, Bernaudin C, Déjardin T, Seiler C, Borghi N. Src- and confinement-dependent FAK activation causes E-cadherin relaxation and β-catenin activity. J Cell Biol 2018; 217:1063-1077. [PMID: 29311227 PMCID: PMC5839785 DOI: 10.1083/jcb.201706013] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 09/20/2017] [Accepted: 12/04/2017] [Indexed: 01/22/2023] Open
Abstract
β-Catenin is a transcription cofactor proposed to be released from E-cadherin upon mechanically induced phosphorylation. However, evidence for this mechanism is lacking. Gayrard et al. show instead that during epithelial-to-mesenchymal transition, Src- and multicellular confinement–dependent FAK-induced cytoskeleton remodeling causes E-cadherin tension relaxation and phosphorylation-independent β-catenin nuclear translocation from the membrane. In epithelia, E-cadherin cytoplasmic tail is under cytoskeleton-generated tension via a link that contains β-catenin. A cotranscription factor, β-catenin, is also active in morphogenetic processes associated with epithelial-to-mesenchymal transition. β-Catenin signaling appears mechanically inducible and was proposed to follow phosphorylation-induced β-catenin release from E-cadherin. Evidence for this mechanism is lacking, and whether E-cadherin tension is involved is unknown. To test this, we combined quantitative fluorescence microscopies with genetic and pharmacological perturbations of epithelial-to-mesenchymal transition–induced cells in culture. We showed that β-catenin nuclear activity follows a substantial release from the membrane specific to migrating cells and requires multicellular deconfinement and Src activity. Selective nuclear translocation occurs downstream of focal adhesion kinase activation, which targets E-cadherin tension relaxation through actomyosin remodeling. In contrast, phosphorylations of the cadherin/catenin complex are not substantially required. These data demonstrate that E-cadherin acts as a sensor of intracellular mechanics in a crosstalk with cell-substrate adhesions that target β-catenin signaling.
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Affiliation(s)
- Charlène Gayrard
- Institut Jacques Monod, Unité Mixte de Recherche 7592, Centre National de la Recherche Scientifique, Université Paris-Diderot, Paris, France
| | - Clément Bernaudin
- Institut Jacques Monod, Unité Mixte de Recherche 7592, Centre National de la Recherche Scientifique, Université Paris-Diderot, Paris, France
| | - Théophile Déjardin
- Institut Jacques Monod, Unité Mixte de Recherche 7592, Centre National de la Recherche Scientifique, Université Paris-Diderot, Paris, France
| | - Cynthia Seiler
- Institut Jacques Monod, Unité Mixte de Recherche 7592, Centre National de la Recherche Scientifique, Université Paris-Diderot, Paris, France
| | - Nicolas Borghi
- Institut Jacques Monod, Unité Mixte de Recherche 7592, Centre National de la Recherche Scientifique, Université Paris-Diderot, Paris, France
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15
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Suen KM, Lin CC, Seiler C, George R, Poncet-Montange G, Biter AB, Ahmed Z, Arold ST, Ladbury JE. Phosphorylation of threonine residues on Shc promotes ligand binding and mediates crosstalk between MAPK and Akt pathways in breast cancer cells. Int J Biochem Cell Biol 2018; 94:89-97. [PMID: 29208567 DOI: 10.1016/j.biocel.2017.11.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 11/16/2017] [Accepted: 11/30/2017] [Indexed: 01/14/2023]
Abstract
Scaffold proteins play important roles in regulating signalling network fidelity, the absence of which is often the basis for diseases such as cancer. In the present work, we show that the prototypical scaffold protein Shc is phosphorylated by the extracellular signal-regulated kinase, Erk. In addition, Shc threonine phosphorylation is specifically up-regulated in two selected triple-negative breast cancer (TNBC) cell lines. To explore how Erk-mediated threonine phosphorylation on Shc might play a role in the dysregulation of signalling events, we investigated how Shc affects pathways downstream of EGF receptor. Using an in vitro model and biophysical analysis, we show that Shc threonine phosphorylation is responsible for elevated Akt and Erk signalling, potentially through the recruitment of the 14-3-3 ζ and Pin-1 proteins.
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Affiliation(s)
- K M Suen
- Department of Biochemistry and Molecular Biology, The University of Texas MD Anderson Cancer Center, Unit 1954, 1515 Holcombe Blvd, Houston, TX 77030, USA; Graduate School of Biological Sciences, The University of Texas MD Anderson Cancer Center, Unit 1954, 1515 Holcombe Blvd, Houston, TX 77030, USA
| | - C C Lin
- School of Molecular and Cellular Biology, University of Leeds, LC Miall Building, Leeds, LS2 9JT, UK
| | - C Seiler
- School of Molecular and Cellular Biology, University of Leeds, LC Miall Building, Leeds, LS2 9JT, UK
| | - R George
- Structural Biology STP, The Francis Crick Institute, Lincolns Inn Fields Laboratory, 44 Lincolns Inn Fields, Holborn, London, WC2A 3LY, UK
| | - G Poncet-Montange
- Orthogon Therapeutics, 960 Turnpike Street, Unit 10, Canton, MA 02021, USA
| | - A B Biter
- Sabin Vaccine Institute and Texas Children's Hospital Center for Vaccine Development, 1102 Bates Avenue, Houston, TX 77030, USA
| | - Z Ahmed
- Department of Biochemistry and Molecular Biology, The University of Texas MD Anderson Cancer Center, Unit 1954, 1515 Holcombe Blvd, Houston, TX 77030, USA
| | - S T Arold
- Division of Biological and Environmental Sciences and Engineering, CBRC, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - J E Ladbury
- School of Molecular and Cellular Biology, University of Leeds, LC Miall Building, Leeds, LS2 9JT, UK.
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16
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Déjardin T, Davidson P, Seiler C, Girard P, Cuvelier D, Sykes C, Gomes E, Bruno C, Borghi N. Mechanotransduction at the Nuclear Envelope. Biophys J 2017. [DOI: 10.1016/j.bpj.2016.11.2453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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17
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Fleming J, Wood GC, Seiler C, Cook A, Lent MR, Still CD, Benotti PN, Irving BA. Electronically captured, patient-reported physical function: an important vital sign in obesity medicine. Obes Sci Pract 2016; 2:399-406. [PMID: 28090345 PMCID: PMC5192538 DOI: 10.1002/osp4.67] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 08/26/2016] [Accepted: 08/30/2016] [Indexed: 01/28/2023] Open
Abstract
OBJECTIVES Impaired physical function (i.e., inability to walk 200 feet, climb a flight of stairs or perform activities of daily living) predicts poor clinical outcomes and adversely impacts medical and surgical weight management. However, routine assessment physical function is seldom performed clinically. The PROMIS Physical Function Short Form 20a (SF-20a) is a validated questionnaire for assessing patient reported physical function, which includes published T-score percentiles adjusted for gender, age and education. However, the effect that increasing levels of obesity has on these percentiles is unclear. We hypothesized that physical function would decline with increasing level of obesity independent of gender, age, education and comorbidity. MATERIALS AND METHODS This study included 1,627 consecutive weight management patients [(mean ± SEM), 44.7 ± 0.3 years and 45.1 ± 0.2 kg/m2] that completed the PROMIS SF-20a during their initial consultation. We evaluated the association between obesity level and PROMIS T-score percentiles using multiple linear regression adjusting for gender, age, education and Charlson Comorbidity Index (CCI). RESULTS Multiple linear regression T-score percentiles were lower in obesity class 2 (-12.4%tile, p < 0.0001), class 3 (-17.0%tile, p < 0.0001) and super obesity (-25.1%tile, p < 0.0001) compared to class 1 obesity. CONCLUSION In patients referred for weight management, patient reported physical function was progressively lower in a dose-dependent fashion with increasing levels of obesity, independent of gender, age, education and CCI.
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Affiliation(s)
- J. Fleming
- Obesity InstituteGeisinger Health SystemDanvillePAUSA
| | - G. C. Wood
- Obesity InstituteGeisinger Health SystemDanvillePAUSA
| | - C. Seiler
- Obesity InstituteGeisinger Health SystemDanvillePAUSA
| | - A. Cook
- Obesity InstituteGeisinger Health SystemDanvillePAUSA
| | - M. R. Lent
- Obesity InstituteGeisinger Health SystemDanvillePAUSA
| | - C. D. Still
- Obesity InstituteGeisinger Health SystemDanvillePAUSA
| | - P. N. Benotti
- Obesity InstituteGeisinger Health SystemDanvillePAUSA
| | - B. A. Irving
- Obesity InstituteGeisinger Health SystemDanvillePAUSA
- School of KinesiologyLouisiana State UniversityBaton RougeLAUSA
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18
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Affiliation(s)
- F. Kaplan
- Institute of Nanotechnology, Karlsruhe Institute of Technology, Campus North, D-76344 Karlsruhe, Germany
| | - M. E. Harding
- Institute of Nanotechnology, Karlsruhe Institute of Technology, Campus North, D-76344 Karlsruhe, Germany
| | - C. Seiler
- Institute
of Theoretical Physics, University of Regensburg, D-93040 Regensburg, Germany
| | - F. Weigend
- Institute
of Theoretical Physics, University of Regensburg, D-93040 Regensburg, Germany
- Institute
of Physical Chemistry, Karlsruhe Institute of Technology, Campus
South, D-76021 Karlsruhe, Germany
| | - F. Evers
- Institute
of Theoretical Physics, University of Regensburg, D-93040 Regensburg, Germany
| | - M. J. van Setten
- Nanoscopic
Physics, Institute of Condensed Matter and Nanosciences, Université Catholique de Louvain, 1348 Louvain-la-Neuve, Belgium
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19
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Seiler C. The “Profiles” profile: “a change in the [medical] teaching and learning paradigm” hopefully scrutinised in the future. Swiss Med Wkly 2016; 146:w14288. [DOI: 10.4414/smw.2016.14288] [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: 11/19/2022] Open
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20
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Valverde Perez I, Maresca D, Zuercher F, Villemain O, Gomez G, Suarez-Mejias C, Hosseinpour AR, Gonzalez-Calle A, Hazekamp M, Vazquez-Jimenez VJ, El-Rassi I, Hussain T, Gomez-Cia T, Correia M, Villemain O, Ghaleh B, Tanter M, Pernot M, Brugger N, Jahren S, De Marchi SF, Seiler C, Kwiecinski W, Bel A, Robin J, Bruneval P, Arnal B, Tanter M, Pernot M, Messas E. Young Investigator Award session – Basic Science3433D printed models for surgical planning in complex congenital heart disease344Ultrafast doppler imaging of intramyocardial coronary arteries345Quantification of mitral regurgitation with multiple jets: in vitro comparison of two-dimensional PISA techniques346Non-invasive ultrasonic chordal cutting. Eur Heart J Cardiovasc Imaging 2015. [DOI: 10.1093/ehjci/jev258] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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21
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Martins Fernandes S, Badano L, Garcia Campos A, Erdei T, Mehdipoor G, Hanboly N, Michalski BW, Vriz O, Mo VY, Le TT, Ribeiro JM, Ternacle J, Yurdakul SELEN, Shetye A, Stoebe S, Lisowska A, Chinali M, Orabona M, Contaldi C, De La Chica JA, Codolosa JN, Trzcinski P, Prado Diaz S, Morales Portano JD, Ha SJ, Valente F, Joseph G, Valente F, Scali MC, Cordeiro F, Duchateau N, Fabris E, Costantino MF, Cho IJ, Goublaire C, Lam W, Galli E, Kim KH, Mariani M, Malev E, Zuercher F, Tang Z, Cimino S, Mahia P, De La Chica JA, Petrovic J, Ciobotaru V, Remsey- Semmelweiss E, Kogoj P, Guerreiro S, Saxena A, Mozenska O, Pontone G, Macaya Ten F, Caballero L, Avegliano G, Halmai L, Reis L, Trifunovic D, Gospodinova M, Makavos G, D'ascenzi F, Dantas Tavares De Melo M, Bonapace S, Kulkarni A, Cameli M, Ingvarsson A, Driessen MMP, Tufekcioglu O, Radulescu D, Barac A, Cioffi G, Almeida Morais L, Ledakowicz-Polak A, Portugal G, Naksuk N, Parato VM, Kovalova S, Cherubini A, Corrado G, Malev E, Wierzbowska-Drabik K, Lesevic H, Laredj N, Pieles GE, Generati G, Van Zalen JJ, Aquila I, Cheng HL, Lanzoni L, Asmarats Serra L, Kadrabulatova S, Ranjbar S, Szczesniak-Stanczyk D, Sharka I, Di Salvo G, Ben Kahla S, Li L, Hadeed HA, Habeeb HA, Toscano A, Granata F, Djikic D, Wdowiak-Okrojek K, Girgis HYA, Sharma A, Soro C, Gallego Page JC, Corneli M, Teixeira R, Roussin I, Lynch M, Muraru D, Romeo G, Ermacora D, Marotta C, Aruta P, Cucchini U, Iliceto S, Martin-Fernandez M, De La Hera Galarza JM, Corros-Vicente C, Colunga Blanco S, Velasco-Alonso E, Leon-Aguero V, Rodriguez-Suarez ML, Moris De La Tassa C, Edwards J, Braim D, Price C, Fraser AG, Salmani F, Arjmand Shabestari A, Szymczyk E, Kupczynska K, Peczek L, Nawrot B, Lipiec P, Kasprzak JD, Driussi C, Ferrara F, Brosolo G, Antonini-Canterin F, Magne J, Aboyans V, Bossone E, Bellucci BM, Fisher JM, Balekian AA, Idapalapati S, Huang F, Wong JI, Tan RS, Teixeira R, Madeira M, Almeida I, Reis L, Siserman A, Dinis P, Dias L, Ramos AP, Goncalves L, Wan FW, Sawaki DS, Dubois-Rande JLDR, Adnot SA, Czibik GC, Derumeaux GD, Ercan G, Tekkesin ILKER, Sahin ST, Cengiz B, Celik G, Demircan S, Aytekin SAIDE, Razvi NA, Nazir SA, Price N, Khan JN, Kanagala P, Singh A, Squire I, Mccann GP, Langel M, Pfeiffer D, Hagendorff A, Ptaszynska-Kopczynska K, Marcinkiewicz-Siemion M, Knapp M, Witkowski M, Musial WJ, Kaminski K, Natali B, D' Anna C, Leonardi B, Secinaro A, Pongiglione G, Rinelli G, Renard S, Michel N, Mancini J, Haentjens J, Sitbon O, Habib G, Imbriaco M, Alcidi G, Santoro C, Buonauro A, Lo Iudice F, Lembo M, Cuocolo A, Trimarco B, Galderisi M, Mora Robles J, Roldan Jimenez MA, Mancisidor MA, De Mora MA, Alnabelsi T, Goykhman I, Koshkelashvili N, Romero-Corral A, Pressman GS, Michalski BW, Kupczynska K, Miskowiec D, Lipiec P, Kasprzak JD, Montoro Lopez N, Refoyo Salicio E, Valbuena Lopez SC, Gonzalez O, Alvarez C, Moreno Yanguela M, Bartha Rasero JL, De La Calle M, Guzman Martinez G, Suarez-Cuenca JA, Merino JA, Gomez Alvarez EB, Delgado LG, Woo YM, Bang WD, Sohn GH, Cheong SS, Yoo SY, Rodriguez Palomares JF, Gutierrez L, Maldonado G, Pineda V, Galian L, Teixido G, Gonzalez Allujas MT, Evangelista A, Garcia Dorado D, Zaremba T, Ekeloef S, Heiberg E, Engblom H, Jensen SE, Sogaard P, Rodriguez Palomares JF, Gutierrez L, Garcia G, Pineda V, Galian L, Teixido G, Gonzalez Allujas MT, Evangelista A, Garcia Dorado D, Dini FL, Galli F, Lattanzi F, Picano E, Marzilli M, Leao S, Moz M, Magalhaes P, Trigo J, Mateus PS, Ferreira A, Moreira JI, De Craene M, Legallois D, Labombarda F, Pellissier A, Sermesant M, Saloux E, Merlo M, Moretti M, Barbati G, Stolfo D, Gigli M, Pinamonti B, Sinagra G, Dores E, Matera A, Innelli P, Innelli P, Lopizzo A, Violini R, Fiorilli R, Cappabianca G, Picano E, Tarsia G, Seo J, Chang HJ, Heo R, Kim IC, Shim CY, Hong GR, Chung N, Melissopoulou MM, Nguyen V, Brochet E, Cimadevilla C, Codogno I, Vahanian A, Messika-Zeitoun D, Pontana F, Vassiliou V, Prasad S, Leclercq C, Samset E, Donal E, Lim DS, Bianchi G, Rossi F, Gianetti J, Marchi F, Cerone E, Nardelli A, Terrazzi M, Solinas M, Maffei S, Pshepiy A, Vasina L, Timofeev E, Reeva S, Zemtsovsky E, Brugger N, Jahren S, De Marchi SF, Seiler C, Jin CN, Tang H, Fan K, Kam K, Yan BP, Yu CM, Lee PW, Reali M, Silvetti E, Salatino T, Mancone M, Pennacchi M, Giordano A, Sardella G, Agati L, Tirado G, Nogales-Romo MT, Marcos-Alberca P, De Agustin A, Almeria C, Rodrigo JL, Garcia Fernandez MA, Macaya C, Perez De Isla L, Mancisidor M, Lara Garcia C, Vivancos R, De Mora M, Petrovic M, Vujisic-Tesic B, Trifunovic D, Boricic-Kostic M, Petrovic I, Draganic G, Petrovic O, Tomic-Dragovic M, Furlan T, Ambrozic J, Mohorko Pleskovic PN, Bunc M, Ribeiras R, Abecasis J, Andrade MJ, Mendes M, Ramakrishnan S, Gupta SK, Juneja R, Kothari SS, Zaleska M, Segiet A, Chwesiuk S, Kroc A, Kosior DA, Andreini D, Solbiati A, Guglielmo M, Mushtaq S, Baggiano A, Beltrama V, Rota C, Guaricci AI, Pepi M, Pons Llinares J, Asmarats Serra L, Pericas Ramis P, Caldes Llull O, Grau Sepulveda A, Frontera G, Vaquer Segui A, Noris M, Bethencourt Gonzalez A, Climent Paya V, Martinez Moreno M, Saura D, Oliva MJ, Sanchez Quinones J, Garcia Honrubia A, Valdes M, De La Morena G, Terricabras M, Costabel JP, Ronderos R, Evangelista A, Venturini C, Galve E, Nemes A, Neubauer S, Rahman Haley S, Banner N, Teixeira R, Caetano F, Almeida I, Trigo J, Botelho A, Silva J, Nascimento J, Goncalves L, Tesic M, Jovanovic I, Petrovic O, Boricic-Kostic M, Dragovic M, Petrovic M, Stepanovic J, Banovic M, Vujisic-Tesic B, Guergelcheva V, Chamova T, Sarafov S, Tournev I, Denchev S, Ikonomidis I, Psarogiannakopoulos P, Tsirigotis P, Paraskevaidis I, Lekakis J, Pelliccia A, Natali BM, Cameli M, Focardi M, Bonifazi M, Mondillo S, Lima C, Assed L, Kalil Filho R, Mady C, Bochi EA, Salemi VMC, Targher G, Valbusa F, Rossi A, Lanzoni L, Lipari P, Zenari L, Molon G, Canali G, Barbieri E, Li L, Craft M, Nanda M, Lorenzo JM, Kutty S, Bombardini T, Sparla S, Di Tommaso C, Losito M, Incampo E, Maccherini M, Mondillo S, Werther Evaldsson A, Radegran G, Stagmo M, Waktare J, Roijer A, Meurling CJ, Hui W, Meijboom FJ, Bijnens B, Dragulescu A, Mertens L, Friedberg MK, Sensoy B, Suleymanoglu M, Akin Y, Sahan E, Sasmaz H, Pasca L, Buzdugan E, Chis B, Stoicescu L, Lynce FC, Smith KL, Mete M, Isaacs C, Viapiana O, Di Nora C, Ognibeni F, Fracassi E, Giollo A, Mazzone C, Faganello G, Di Lenarda A, Rossini M, Galrinho A, Branco L, Timoteo AT, Rodrigues I, Daniel P, Rosa S, Ferreira L, Ferreira R, Polak L, Krauza G, Stokfisz K, Zielinska M, Branco LM, Galrinho A, Mota Carmo M, Teresa Timoteo A, Aguiar Rosa S, Abreu J, Pinto Teixeira P, Viveiros Monteiro A, Cruz Ferreira R, Peeraphatdit T, Chaiteerakij R, Klarich KW, Masia S, Necas J, Nistri S, Negri F, Barbati G, Cioffi G, Russo G, Mazzone C, Faganello G, Pandullo C, Di Lenarda A, Durante A, Rovelli E, Genchi V, Trabattoni L, Zerboni SC, Cattaneo L, Butti E, Ferrari G, Luneva E, Mitrofanova L, Uspensky V, Zemtsovsky 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Nabil MN, Elebrashy IN, Chinali M, Albanese S, Carotti A, Iacobelli R, Esposito C, Secinaro A, Moscogiuri G, Pasquini L, Malvezzi Caracciolo M, Bianchi RM, Caso P, Arenga F, Riegler L, Scarafile R, D'andrea A, Russo MG, Calabro' P, Simic DS, Peric VP, Mujovic NM, Marinkovic MM, Jankovic NJ, Shim A, Wejner-Mik P, Kasprzak JD, Lipiec P, Jain N, Kharwar R, Saran RK, Narain VS, Dwivedi SK, Sethi R, Chandra S, Pradhan A, Safal S, Marchetti MF, Cacace C, Congia M, Nissardi V, Ruscazio M, Meloni L, Montisci R, Gallego Sanchez G, Calero S, Portero JJ, Tercero A, Garcia JC, Barambio M, Martinez Lazaro R, Meretta AH, Perea GO, Belcastro F, Aguirre E, De Luca I, Henquin R, Masoli O. Poster session 2THE IMAGING EXAMINATIONP536Appropriate use criteria of transthoracic echocardiography and its clinical impact: a continuous challengeP537Implementation of proprietary plug-ins in the DICOM-based computerized echo reporting system fuels the use of 3D echo and deformation imaging in the clinical routine of a multivendor laboratoryP538Exercise stress echocardiography appropriate use criteria: real-life cases classification ease and agreement among cardiologistsANATOMY AND PHYSIOLOGY OF THE HEART AND GREAT VESSELSP539Functional capacity in older people with normal ejection fraction correlates with left ventricular functional reserve and carotid-femoral pulse wave velocity but not with E/e and augmentation indexP540Survey of competency of practitioners for diagnosis of acute cardiopulmonary diseases manifest on chest x-rayASSESSMENT OF DIAMETERS, VOLUMES AND MASSP541Left atrium remodeling in dialysis patients with normal ejection fractionP542The prediction of postinfarction left ventricular remodeling and the role of of leptin and MCP-1 in regard to the presence of metabolic syndromeP543Ascending aorta and common carotid artery: diameters and stiffness in a group of 584 healthy subjectsAssessments of haemodynamicsP544Alternate echo parameters in patients without estimable RVSPAssessment of systolic functionP545Reduced contractile performance in heart failure with preserved ejection fraction: determination using novel preload-adjusted maximal left ventricular ejection forceP546Left ventricular dimensions and prognosis in acute coronary syndromesP547Time course of myocardial alterations in a murine model of high fat diet: A strain rate imaging studyP548Subclinical left ventricular systolic dysfunction in patients with premature ventricular contractionsP549Global myocardial strain by CMR-based feature tracking (FT) and tagging to predict development of severe left ventricular systolic dysfunction after acute st-elevation myocardial infarctionP550Echocardiographic analysis of left and right ventricular function in patients after mitral valve reconstructionP551The role of regional longitudinal strain assessment in predicting response to cardiac resynchronization therapy in patients with left ventricular systolic dysfunction and left bundle branch blockP552Speckle tracking automatic border detection improves echocardiographic evaluation of right ventricular systolic function in repaired tetralogy of fallot patients: comparison with MRI findingsP553Echocardiography: a reproducible and relevant tool in pah? intermediate results of the multicentric efort echogardiographic substudy (evaluation of prognostic factors and therapeutic targets in pah)Assessment of diastolic functionP554Relationship between left ventricular filling pressures and myocardial fibrosis in patients with uncomplicated arterial hypertensionP555Cardiac rehabilitation improves echocardiographic parameters of diastolic function in patients with ischemic heart diseaseP556Diastolic parameters in the calcified mitral annulusP557Biomarkers and echocardiography - combined weapon to diagnose and prognose heart failure with and without preserved ejection fractionP558Diastolic function changes of the maternal heart in twin and singleton pregnancyIschemic heart diseaseP559Syntax score as predictor for the correlation between epicardial adipose tissue and the severity of coronary lesions in patients with significant coronary diseaseP560Impact of strain analysis in ergonovine stress echocardiography for diagnosis vasospastic anginaP561Cardiac magnetic resonance tissue tracking: a novel method to predict infarct transmurality in acute myocardial infarctionP562Infarct size is correlated to global longitudinal strain but not left ventricular ejection fraction in the early stage of acute myocardial infarctionP563Magnetic resonance myocardial deformation assessment with tissue tracking and risk stratification in acute myocardial infarction patientsP564Increase in regional end-diastolic wall thickness by transthoracic echocardiography as a biomarker of successful reperfusion in anterior ST elevation acute myocardial infarctionP565Mitral regurgitation is associated with worse long-term prognosis in ST-segment elevation myocardial infarction treated with primary percutaneous coronary interventionP566Statistical significance of 3D motion and deformation indexes for the analysis of LAD infarctionHeart valve DiseasesP567Paradoxical low gradient aortic stenosis: echocardiographic progression from moderate to severe diseaseP568The beneficial effects of TAVI in mitral insufficiencyP569Impact of thoracic aortic calcification on the left ventricular hypertrophy and its regression after aortic valve replacement in patients with severe aortic stenosisP570Additional value of exercise-stress echocardiography in asymptomatic patients with aortic valve stenosisP571Valvulo-arterial impedance in severe aortic stenosis: a dual imaging modalities studyP572Left ventricular mechanics: novel tools to evaluate left ventricular performance in patients with aortic stenosisP573Comparison of long-term outcome after percutaneous mitral valvuloplasty versus mitral valve replacement in moderate to severe mitral stenosis with left ventricular dysfunctionP574Incidence of de novo left ventricular dysfunction in patient treated with aortic valve replacement for severe aortic regurgitationP575Transforming growth factor-beta dependant progression of the mitral valve prolapseP576Quantification of mitral regurgitation with multiple jets: in vitro validation of three-dimensional PISA techniqueP577Impaired pre-systolic contraction and saddle-shape deepening of mitral annulus contributes to atrial functional regurgitation: a three-dimensional echocardiographic studyP578Incidence and determinants of left ventricular (lv) reverse remodeling after MitraClip implantation in patients with moderate-to severe or severe mitral regurgitation and reduced lv ejection fractionP579Severe functional tricuspid regurgitation in rheumatic heart valve disease. New insights from 3D transthoracic echocardiographyP58015 years of evolution of the etiologic profile for prosthetic heart valve replacement through an echocardiography laboratoryP581The role of echocardiography in the differential diagnosis of prolonged fever of unknown originP582Predictive value for paravalvular regurgitation of 3-dimensional anatomic aortic annulus shape assessed by multidetector computed tomography post-transcatheter aortic valve replacementP583The significance and advantages of echo and CT imaging & measurement at transcatherter aortic valve implantation through the left common carotid accessP584Comparison of the self-expandable Medtronic CoreValve versus the balloon-expandable Edwards SAPIEN bioprostheses in high-risk patients undergoing transfemoral aortic valve implantationP585The impact of transcatheter aortic valve implantation on mitral regurgitation severityP586Echocardiographic follow up of children with valvular lesions secondary to rheumatic heart disease: Data from a prospective registryP587Valvular heart disease and different circadian blood pressure profilesCardiomyopathiesP588Comparison of transthoracic echocardiography versus cardiac magnetic for implantable cardioverter defibrillator therapy in primary prevention strategy dilated cardiomyopathy patientsP589Incidence and prognostic significance of left ventricle reverse remodeling in a cohort of patients with idiopathic dilated cardiomyopathyP590Early evaluation of diastolic function in fabry diseaseP591Echocardiographic predictors of atrial fibrillation development in hypertrophic cardiomyopathyP592Altered Torsion mechanics in patients with hypertrophic cardiomyopathy: LVOT-obstruction is the topdog?P593Prevention of sudden cardiac death in hypertrophic cardiomyopathy: what has changed in the guidelines?P594Coronary microcirculatory function as determinator of longitudinal systolic left ventricular function in hypertrophic cardiomyopathyP595Detection of subclinical myocardial dysfunction by tissue Doppler ehocardiography in patients with muscular dystrophiesP596Speckle tracking myocardial deformation analysis and three dimensional echocardiography for early detection of chemotherapy induced cardiac dysfunction in bone marrow transplantation patientsP597Left ventricular non compaction or hypertrabeculation: distinguishing between physiology and pathology in top-level athletesP598Role of multi modality imaging in familiar screening of Danon diseaseP599Early impairment of global longitudinal left ventricular systolic function independently predicts incident atrial fibrillation in type 2 diabetes mellitusP600Fetal cardiovascular programming in maternal diabetes mellitus and obesity: insights from deformation imagingP601Longitudinal strain stress echo evaluation of aged marginal donor hearts: feasibility in the Adonhers project.P602Echocardiographic evaluation of left ventricular size and function following heart transplantation - Gender mattersSystemic diseases and other conditionsP603The impact of septal kinetics on adverse ventricular-ventricular interactions in pulmonary stenosis and pulmonary arterial hypertensionP604Improvement in right ventricular mechanics after inhalation of iloprost in pulmonary hypertensionP605Does the treatment of patients with metabolic syndrome correct the right ventricular diastolic dysfunction?P606Predictors of altered cardiac function in breast cancer survivors who were treated with anthracycline-based therapyP607Prevalence and factors related to left ventricular systolic dysfunction in asymptomatic patients with rheumatoid arthritis: a prospective tissue-doppler echocardiography studyP608Diastolic and systolic left ventricle dysfunction presenting different prognostic implications in cardiac amyloidosisP609Diagnostic accuracy of Bedside Lung Ultrasonography in Emergency (BLUE) protocol for the diagnosis of pulmonary embolismP610Right ventricular systolic dysfunction and its incidence in breast cancer patients submitted to anthracycline therapyP611Right ventricular dysfunction is an independent predictor of survival among cirrhotic patients undergoing liver transplantCongenital heart diseaseP612Hypoplasia or absence of posterior leaflet: a rare congenital anomaly of the mitral valveP613ECHO screening for Barlow disease in proband's relativesDiseases of the aortaP614Aortic size distribution and prognosis in an unselected population of patients referred for standard transthoracic echocardiographyP615Abdominal aorta aneurysm ultrasonographic screening in a large cohort of asympromatic volounteers in an Italian urban settingP616Thoracic aortic aneurysm and left ventricular systolic functionStress echocardiographyP617Wall motion score index, systolic mitral annulus velocity and left ventricular mass predicted global longitudinal systolic strain in 238 patients examined by stress echocardiographyP618Prognostic parameters of exercise-induced severe mitral valve regurgitation and exercise-induced systolic pulmonary hypertensionP619Risk stratification after myocardial infarction: prognostic value of dobutamine stress echocardiographyP620relationship between LV and RV myocardial contractile reserve and metabolic parameters during incremental exercise and recovery in healthy children using 2-D strain analysisP621Increased peripheral extraction as a mechanism compensatory to reduced cardiac output in high risk heart failure patients with group 2 pulmonary hypertension and exercise oscillatory ventilationP622Can exercise induced changes in cardiac synchrony predict response to CRT?Transesophageal echocardiographyP623Fully-automated software for mitral valve assessment in chronic mitral regurgitation by three-dimensional transesophageal echocardiographyP624Real-time 3D transesophageal echocardiography provides more accurate orifice measurement in percutaneous transcatheter left atrial appendage closureP625Percutaneous closure of left atrial appendage: experience of 36 casesReal-time three-dimensional TEEP626Real-time three-dimensional transesophageal echocardiography during pulmonary vein cryoballoon ablation for atrial fibrilationP627Three dimensional ultrasound anatomy of intact mitral valve and in the case of type 2 disfunctionTissue Doppler and speckle trackingP629Left ventricle wall motion tracking from echocardiographic images by a non-rigid image registrationP630The first experience with the new prototype of a robotic system for remote echocardiographyP631Non-invasive PCWP influence on a loop diuretics regimen monitoring model in ADHF patients.P632Normal range of left ventricular strain, dimensions and ejection fraction using three-dimensional speckle-tracking echocardiography in neonatesP633Circumferential ascending aortic strain: new parameter in the assessment of arterial stiffness in systemic hypertensionP634Aortic vascular properties in pediatric osteogenesis imperfecta: a two-dimensional echocardiography derived aortic strain studyP635Assessment of cardiac functions in children with sickle cell anemia: doppler tissue imaging studyP636Assessment of left ventricular function in type 1 diabetes mellitus patients by two-dimensional speckle tracking echocardiography: relation to duration and control of diabetesP637A study of left ventricular torsion in l-loop ventricles using speckle-tracking echocardiographyP638Despite No-Reflow, global and regional longitudinal strains assessed by two-dimensional speckle tracking echocardiography are predictive indexes of left ventricular remodeling in patients with STEMIP639The function of reservoir of the left atrium in patients with medicaly treated arterial hypertensionP640The usefulness of speckle tracking analysis for predicting the recovery of regional systolic function after myocardial infarctionP641Two dimensional speckle tracking echocardiography in assessment of left ventricular systolic function in patients with rheumatic severe mitral regurgitation and normal ejection fractionP642The prediction of left-main and tripple vessel coronary artery disease by tissue doppler based longitudinal strain and strain rate imagingP643Role of speckle tracking in predicting arrhythmic risk and occurrence of appropriate implantable defibrillator Intervention in patients with ischemic and non-ischemic cardiomyopathyComputed Tomography & Nuclear CardiologyP644Cardiac adrenergic activity in patients with nonischemic dilated cardiomyopathy. Correlation with echocardiographyP645Different vascular territories and myocardial ischemia, there is a gradient of association? Eur Heart J Cardiovasc Imaging 2015. [DOI: 10.1093/ehjci/jev278] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Magalhaes P, Cruz I, Marmelo B, Reis L, Picarra B, Faria R, Azevedo O, Gimaev RH, Melnikova MA, Olezov NV, Ruzov VI, Goncalves P, Almeida MS, Branco P, Carvalho MS, Dores H, Gaspar MA, Sousa H, Andrade MJ, Mendes M, Makavos G, Varoudi M, Papadavid E, Andreadou I, Gravanis K, Liarakos N, Pavlidis G, Rigopoulos D, Lekakis J, Deluyker D, Bito V, Pigatto E, Romeo G, Muraru D, Cozzi F, Punzi L, Iliceto S, Badano LP, Pigatto E, Romeo G, Muraru D, Cozzi F, Iliceto S, Badano LP, Neilan T, Coen K, Gannon S, Bennet K, Clarke JG, Solari M, Cameli M, Focardi M, Corrado D, Bonifazi M, Henein M, Mondillo S, Gomez-Escalonilla C, De Agustin A, Egido J, Islas F, Simal P, Gomez De Diego JJ, Luaces M, Macaya C, Perez De Isla L, Zancanella M, Rusconi C, Musca F, Santambrogio G, De Chiara B, Vallerio P, Cairoli R, Giannattasio G, Moreo A, Alvarez Ortega C, Mori Junco R, Caro Codon J, Meras Colunga P, Ponz De Antonio I, Lopez Fernandez T, Valbuena Lopez S, Moreno Yanguela M, Lopez-Sendon JL, Surkova E, Bonanad-Lozano C, Lopez-Lereu MP, Monmeneu-Menadas JV, Gavara J, De Dios E, Paya-Chaume A, Escribano-Alarcon D, Chorro-Gasco FJ, Bodi-Peris V, Michalski BW, Miskowiec D, Kasprzak JD, Lipiec P, Morgado G, Caldeira D, Cruz I, Joao I, Almeida AR, Lopes L, Fazendas P, Cotrim C, Pereira H, De Block C, Buys D, Salgado R, Vrints C, Van Gaal L, Mctear C, Irwin RB, Dragulescu A, Friedberg M, Mertens L, Dragulescu A, Friedberg M, Mertens L, Carbone F, Generati G, Pellegrino M, Labate V, Alfonzetti E, Guazzi M, Krinochkin DV, Yaroslavskaya EI, Zaharova EH, Pushkarev GS, Sugihara C, Patel NR, Sulke AN, Lloyd GW, Piatkowski R, Scislo P, Grabowski M, Marchel M, Opolski G, Roland H, Hamadanchi A, Otto S, Jung C, Lauten A, Figulla HC, Poerner TC, Sampaio F, Fonseca P, Fontes-Carvalho R, Pinho M, Campos AS, Castro P, Fonseca C, Ribeiro J, Gama V, Heck R, Hamdanchi A, Otto S, Jung C, Lauten A, Figulla HR, Poerner TC, Ranjbar S, Ghaffaripour Jahromi M, Ranjbar S, Hinojar R, Fernandez Golfin C, Esteban A, Pascual-Izco M, Garcia-Martin A, Casas Rojo E, Jimenez-Nacher JJ, Zamorano JL, Gecmen C, Cap M, Izci S, Erdogan E, Onal C, Acar R, Bakal RB, Kaymaz C, Ozdemir N, Karvandi M, Ghaffaripour Jahromi M, Galand V, Schnell F, Matelot D, Martins R, Leclercq C, Carre F, Suran BC, Margulescu AD, Rimbas RC, Siliste C, Vinereanu D, Nocerino P, Urso AC, Borrino A, Carbone C, Follero P, Ciardiello C, Prato L, Salzano G, Marino F, Ruspetti A, Sparla S, Di Tommaso C, Loiacono F, Focardi M, D'ascenzi F, Henein M, Mondillo S, Porter J, Walker M, Lo Iudice F, Esposito R, Santoro C, Cocozza S, Izzo R, De Luca N, De Simone G, Trimarco B, Galderisi M, Gervasi F, Patti G, Mega S, Bono M, Di Sciascio G, Buture A, Badea R, Platon P, Ghiorghiu I, Jurcut R, Coman IM, Popescu BA, Ginghina C, Lunetta M, Spoto MS, Lo Vi AM, Pensabene G, Meschisi MC, Carita P, Coppola G, Novo S, Assennato P, Shim A, Wejner-Mik P, Kasprzak JD, Lipiec P, Havasi K, Domsik P, Kalapos A, Forster T, Piros GA, Domsik P, Kalapos A, Lengyel C, Orosz A, Forster T, Bulbul Z, Issa Z, Al Sehly A, Pergola V, Oufi S, Conde Y, Cimino E, Rinaldi E, Ashurov R, Ricci S, Pergolini M, Vitarelli A, Lujan Valencia JE, Chaparro M, Garcia-Guerrero A, Cristo Ropero MJ, Izquierdo Bajo A, Madrona L, Recio-Mayoral A, Monmeneu JV, Igual B, Lopez Lereu P, Garcia MP, Selmi W, Jalal Z, Thambo JB, Kosuta D, Fras Z. Poster session 5The imaging examinationP1097Correlation between visual and quantitative assessment of left ventricle: intra- and inter-observer agreementP1099Incremental prognostic value of late gadolinium-enhanced by cardiac magnetic resonance in patients with heart failureAnatomy and physiology of the heart and great vesselsP1100Left ventricular geometry and diastolic performance in erectile dysfunction patients; a topic of differential arterial stiffness influenceAssessment of diameters, volumes and massP1101Impact of the percutaneous closure of atrial septal defect on the right heart "remodeling"P1102Left Ventricular Mass Indexation in Infants, Children and Adolescents: a Simplified Approach for the Identification of Left Ventricular Hypertrophy in Clinical PracticeP1103Impact of trabecules while quantifying cardiac magnetic resonance exams in patients with systemic right ventricleP1104Detection of subclinical atherosclerosis by carotid intima-media thickness: correlation with leukocytes telomere shorteningAssessments of haemodynamicsP1105Flow redirection towards the left ventricular outflow tract: vortex formation is not affected by variations in atrio-ventricular delayAssessment of systolic functionP1106Reproducibility and feasibility of cardiac MRI feature tracking in Fabry diseaseP1107Normal left ventricular strain values by two-dimensional strain echocardiography; result of normal (normal echocardiographic dimensions and functions in korean people) studyP1108Test-retest repeatability of global strain following st-elevation myocardial infarction - a comparison of tagging and feature trackingP1109Cardiotoxicity induced by tyrosine kinase inhibitors in patients with gastrointestinal stromal tumors (GIST)P1110Finite strain ellipses for the analysis of left ventricular principal strain directions using 3d speckle tracking echocardiographyP1111Antihypertensive therapy reduces time to peak longitudinal strainP1112Right ventricular systolic function as a marker of prognosis after inferior myocardial infarction - 5-year follow-upP1113Is artery pulmonary dilatation related with right but also early left ventricle dysfunction in pulmonary artery hypertension?P1114Right ventricular mechanics changes according to pressure overload increasing, a 2D-speckle tracking echocardiographic evaluationAssessment of diastolic functionP1115Paired comparison of left atrial strain from P-wave to P-wave and R-wave to R-waveP1116Diagnostic role of Tissue Doppler Imaging echocardiographic criteria in obese heart failure with preserved ejection fraction patientsP1117Evaluation of diastolic function of right ventricle in idiopathic pulmonary arterial hypertensionP1118Severity and predictors of diastolic dysfunction in a non-hypertensive non-ischemic cohort of Egyptian patients with documented systemic autoimmune disease; pilot reportP1119correlation between ST segment shift and cardiac diastolic function in patients with acute myocardial infarctionIschemic heart diseaseP1120Computed tomography coronary angiography verSus sTRess cArdiac magneTic rEsonance for the manaGement of sYmptomatic revascularized patients: a cost effectiveness study (STRATEGY study)P1121Utility of transmural myocardial mechanic for early infarct size prediction after primary percutaneous coronary intervention in STEMI patientsP1122Progressive Improvements of the echocardiographic deformation parameters in ST Elevation Myocardial Infarction after five years follow-upP1123Long-term prognostic value of left ventricular dyssynchrony as assessed by cardiac magnetic resonance feature-tracking imaging after a first st-segment elevation myocardial infarctionP1124Differences in mitral annulus remodeling in acute anterior ST elevation and acute inferior ST elevation myocardial infarctionP1125Reduction of microvascular injury using a novel theragnostic ultrasound strategy: a first in men feasibility and safety studyP1126Impact of focused echocardiography in clinical decision of patient presented with st elevation myocardial infarction underwent primary angioplastyHeart valve DiseasesP1127Aortic valve area calculation in aortic stenosis: a comparison among conventional and 3D-transesophageal echocardiography and computed tomographyP1128Myocardial fibrosis and microRNA-21 expression in patients with severe aortic valve stenosis and preserved ejection fraction: a 2D speckle tracking echocardiography, tissutal and plasmatic studyP1129Quantification of calcium amount in a new experimental model: a comparison between calibrated integrated backscatter of ultrasound and computed tomographyP1130Altered diffusion capacity in aortic stenosis: role of the right heartP1131Osteoprotegerin predicts all-cause mortality in calcific aortic stenosis patients with preserved left ventricle ejection fraction in long term observationP1132Mitral regurgitation as a risk factor for pulmonary hypertension in patients with aortic stenosisP1133The relationship between the level of plasma B-type natriuretic peptide and mitral stenosisP1134Aortic regurgitation, left ventricle mechanics and vascular load: a single centre 2d derived-speckle tracking studyP1135Feasibility and reproducibility issues limit the usefulness of quantitative colour Doppler parameters in the assessment of chronic aortic and mitral regurgitation severityP1136Predictors of postoperative outcome in degenerative mitral regurgitationP1137Left ventricular mechanical dyssynchrony in patients with severe mitral regurgitation of rheumatic etiology; three dimensional echocardiography studyP1138Functional mitral regurgitation and left atrial dysfunction concur in determining pulmonary hypertension and functional status in subjects with left ventricular systolic dysfunctionP11393D echocardiography allows more effective quantitative assessment of the severity of functional tricuspid regurgitation than conventional 2D/Doppler echocardiographyP1140Prosthetic valve thrombosis: still a severe disease? 10-years experience in a university hospitalP1141Validity of echocardiography in the hospital course of patients with feverP1142Do baseline 3DTEE characteristics of mitral valve apparatus predict long term result in patients undergoing percutaneous valve repair for degenerative regurgitation?P1143Influence of baseline aortic regurgitation on mitral regurgitation change after transcatheter aortic valve replacement for aortic stenosisP1144Prevalence of echocardiography detected significant valvular regurge in subclinical rheumatic carditis in assiut childrenCardiomyopathiesP1145Can we early detect left ventricular systolic dysfunction in patients with Duchenne muscular dystrophy using global longitudinal strain assessment?P1146Prevalence of isolated papillary muscle hypertrophy in young competitive athletesP1147Troponin release after exercise in patients with hypertrophic cardiomyopathy: associations with clinical and mr imaging characteristicsP1148Atrial fibrillation in hypertrophic cardiomyopathy: can we score the risk?P1149Impact of hypertrophy on multiple layer longitudinal deformation in hypertrophy cardiomyopathy and cardiac amyloidosis compared to controlsP1150Functional evaluation in hypertrophic cardiomyopathy combining cardiopulmonary exercise testing combined with exercise-echocardiographyP1151Refinement of the old diagnostic criteria of left ventricular noncompaction cardiomyopathy (LVNC) based on cardiac magnetic resonance (CMR)P1152Differences of clinical characteristics and outcomes between acute myocarditis with preserved and reduced left ventricular systolic functionP1153Value of longitudinal strain for distinguishing left ventricular non-compaction from idiopathic dilated cardiomyopathyP1154Speed of recovery of left ventricular function is not related to the prognosis of Takotsubo cardiomyopathy. A Portuguese multicentre studyP1155Predictors of in-hospital left ventricular systolic function recovery after admission with takotsubo cardiomyopathy. Portuguese multicentre studyP1156Mid-ventricular takotsubo detected by initial echocardiogram associates with recurrence of takotsubo cardiomyopathy - a portuguese multicentre studySystemic diseases and other conditionsP1157Relations between left ventricle remodelling and expression of angiotensin 2 AT2R1 geneP1158Impact of renal denervation on long-term blood pressure variability and surrogate markers of target organ damage in individuals with drug-resistant arterial hypertensionP1159Greater improvement of coronary artery function, left ventricular deformation and twisting by IL12/23 compared to TNF-a inhibition in psoriasisP1160Advanced glycation end products play a role in adverse LV remodeling following MIP1161Incidence of subclinical myocardial dysfunction in patients with systemic sclerosis and normal left ventricular systolic and diastolic functionP1162Left atrial remodeling and dysfunction occur early in patients with systemic sclerosis and normal left ventricular functionP1163Intrinsic vortex formation : a unique performance indicatorP1164P-wave morphology is unaffected by training-induced biatrial dilatation: a prospective, longitudinal study in healthy athletesP1165Usefulness of transthoracic echocardiography in diagnosis of young patients with ischemic strokeP1166Primary cardiac lymphoma: role of echocardiography in the clinical managementP1167Abnormal echocardiographic findings in cancer patients before chemotherapyMasses, tumors and sources of embolismP1168Three-dimensional transesophageal echocardiography of the left atrial appendage reduces rate of postpone electrical cardioversionP1169Detection of ventricular thrombus by cmr after reperfused st-segment elevation myocardial infarction correlated with echocardiographyP1170Clinical and transthoracic echocardiographic predictors of left atrial appendage thrombus in patients with atrial fibrillationStress echocardiographyP1171Pharmacological stress echocardiography complications: a 4-year single center experienceP1172Myocardial functional and perfusion reserve in type I diabetesP1173Feasibility of incorporating 3D Dobutamine stress echocardiography into routine clinical practiceP1174Right ventricular isovolumic acceleration at rest and during exercise in children after heart transplantP1175Right ventricular systolic and diastolic response to exercise in children after heart transplant -a bicycle exercise studyP1176Determinants of functional capacity in heart failure patients with reduced ejection fractionP1177Handgrip stress echocardiography with emotional component compared to conventional isometric exercise in coronary artery disease diagnosisP1178The relationship between resting transthoracic echocardiography and exercise capacity in patients with paroxysmal atrial fibrillationP1179Correlation between NT-proBNP and selected echocardiography parameters at rest and after exercise in patients with functional ischemic mitral regurgitation qualified for cardiosurgical treatmentReal-time three-dimensional TEEP1180Vena contracta area for severity grading in functional and degenerative mitral regurgitation: A study based on transesophageal 3D colour Doppler in 419 patientsP1181Proximal flow convergence by 3D echocardiography in the evaluation of mitral valve area in rheumatic mitral stenosisP1182Quantification of valve dimensions by transesophageal 3D echocardiography in patients with functional and degenerative mitral regurgitationTissue Doppler and speckle trackingP1183Automatic calculation of left ventricular volume changes over a cardiac cycle from echocardiography images by nonlinear dimensionality reductionP1184Effect of the mitral valve repairs on the left ventricular blood flow formationP1185Quantification of left atrial strain using cardiovascular magnetic resonance. a comparison between hypertrophic cardiomyopathy and healthy controlsP1186The role of early systolic lengthening in patients with non-ST elevation acute coronary syndrome and its relation to syntax scoreP1187Different standard two dimensional strain methods to quantity left ventricular mechanicsP1188Atrial function and electrocardiography caracteristics in sportsmen with or without paroxysmal atrial fibrillationP1189Right ventricular outflow premature contractions induce regional left ventricular dysfunctionP1190Ultrasound guided venous access for pacemaker and defibrillators. Randomized TrialP1191Atrial function analysis correlates with symptoms and quality of life of heart failure patientsP1192The use of tissue doppler echocardiography in myocardial iron overload in patients with thalassaemia majorP1193Independent association between pulse pressure and left ventricular global longitudinal strainP1194Global and regional longitudinal strain identifies the presence of coronary artery disease in patients with suspected reduction of coronary flow reserve and absence of wall motion abnormalitiesP1195Prognostic value of invasive and noninvasive parameters of right ventricular function in patients with pulmonary arterial hypertension receiving specific vasodilator therapyP1196Myocardial deformation analysis to improve arrhythmic risk stratificationP1197Quantitative assessment of regional systolic and diastolic function parameters for detecting prior transient ischemia in normokinetic segmentsP1198Left atrial function in patients with corrected tetralogy of Fallot - a three-dimensional speckle-tracking echocardiographic studyP1199Left atrial ejection force correlates with left atrial strain and volume-based functional properties as assessed by three-dimensional speckle tracking echocardiographyP1200Acute angulation of the aortic arch late after the arterial switch operation for transposition of the great arteries: impact on cardiac mechanicsP1201Circumferential deformation of the ascending thoracic aorta in hypertensive patients by three-dimensional speckle tracking echocardiographyCardiac Magnetic ResonanceP1202The incremental value of cardiac magnetic resonance on diagnosis myocardial infarction and non-obstructed coronary arteriesP1204Reference ranges of global and regional myocardial T1 values derived from MOLLI and shMOLLI at 3TComputed Tomography & Nuclear CardiologyP1205Deformation of the left atrial appendage after percutaneous closure with the Amplatzer cardiac plugP1206Prognostic impact of non-obstructive coronary artery disease on coronary computed tomographic angiography: A single-center study. Eur Heart J Cardiovasc Imaging 2015. [DOI: 10.1093/ehjci/jev275] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Ott S, Rimoldi S, Rexhaj E, Arx RV, di Marchi S, Brenner R, Scherrer U, Meier B, Gugger M, Allemann Y, Seiler C. Effect of patent foramen ovale closure on obstructive sleep apnea. Pneumologie 2015. [DOI: 10.1055/s-0035-1551923] [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: 10/23/2022]
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Pluhar L, Goulart M, Seiler C, Olin M. PM-16 * IMMUNOSUPPRESSIVE FACTORS, MDSC AND ARGINASE, ARE ELEVATED IN DOGS WITH MALIGNANT GLIOMA. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou268.16] [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: 11/14/2022] Open
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Abstract
Electrical and thermal transport properties of C60 molecules are investigated with density-functional-theory based calculations. These calculations suggest that the optimum contact geometry for an electrode terminated with a single-Au atom is through binding to one or two C-atoms of C60 with a tendency to promote the sp(2)-hybridization into an sp(3)-type one. Transport in these junctions is primarily through an unoccupied molecular orbital that is partly hybridized with the Au, which results in splitting the degeneracy of the lowest unoccupied molecular orbital triplet. The transmission through these junctions, however, cannot be modeled by a single Lorentzian resonance, as our results show evidence of quantum interference between an occupied and an unoccupied orbital. The interference results in a suppression of conductance around the Fermi energy. Our numerical findings are readily analyzed analytically within a simple two-level model.
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Affiliation(s)
- G Géranton
- Institute of Nanotechnology, Karlsruhe Institute of Technology, Campus North, D-76128 Karlsruhe, Germany
| | - C Seiler
- Institute of Nanotechnology, Karlsruhe Institute of Technology, Campus North, D-76128 Karlsruhe, Germany
| | - A Bagrets
- Institute of Nanotechnology, Karlsruhe Institute of Technology, Campus North, D-76128 Karlsruhe, Germany
| | - L Venkataraman
- Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027, USA
| | - F Evers
- Institute of Nanotechnology, Karlsruhe Institute of Technology, Campus North, D-76128 Karlsruhe, Germany
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Cikes M, Sutherland G, Jakus N, Haemers P, D'hooge J, Claus P, Sorensen LL, Bedja D, Shah P, Abraham T, Abraham M, Gabrielson K, Brugger N, De Marchi S, Steck H, Zumstein D, Seiler C. Young Investigator Award session - Basic Science: 11/12/2013, 12:45-13:45 * Location: Manisa. Eur Heart J Cardiovasc Imaging 2013. [DOI: 10.1093/ehjci/jet227] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Ben Abda A, Hachulla E, Polge A, Richardson M, Duva Penthia A, De Groote P, Montaigne D, Lamblin N, Lamer M, Cinotti R, Delater A, Asehnoune K, Blanloeil Y, Le Tourneau T, Rozec B, Piriou N, Moon J, Kim T, Ahn T, Chung W, Chimura M, Oonishi T, Tukishiro Y, Yamada S, Taniguchi Y, Yasaka Y, Kawai T, Elmissiri A, Andres Lahuerta A, Alonso Fernandez P, Igual Munoz B, Osca Asensi J, Cano Perez O, Jimenez Carreno R, Sancho-Tello De Carranza M, Olague De Ros J, Salvador Sanz A, Atas H, Samadov F, Kepez A, Sunbul M, Cincin A, Direskeneli H, Tigen K, Yildiz A, Karakas M, Cimen T, Tuncez A, Korkmaz A, Uygur B, Isleyen A, Tufekcioglu O, Melao F, Paiva M, Goncalves A, Pinho T, Madureira A, Martins E, Macedo F, Maciel M, Guvenc T, Erer H, Kul S, Oz D, Koroglu B, Kaya Y, Koc S, Sayar N, Degirmencioglu A, Eren M, Stapor M, Condemi F, Bapat V, Gianstefani S, Catibog N, Monaghan MJ, Carro A, Pijuan A, Dos L, Huguet F, Abad C, Gonzalez N, Miranda B, Galian L, Casaldaliga J, Evangelista A, Gurzun MM, Ionescu A, Kahraman E, Sen T, Guven S, Keskin G, Topaloglu S, Korkmaz S, Moatemri F, Mahdhaoui A, Bouraoui H, Jeridi G, Ernez S, Basaran O, Gozubuyuk G, Dundar C, Tasar O, Bulut M, Karaahmet T, Pala S, Tigen K, Izgi A, Kirma C, Baronaite-Dudoniene K, Urbaite L, Smalinskas V, Veisaite R, Vasylius T, Vaskelyte J, Puodziukynas A, Carro A, Teixido-Tura G, Rodriguez-Palomares J, Cuellar H, Pineda V, Gruosso D, Gutierrez L, Moral S, Gonzalez-Alujas M, Evangelista A, Oprescu N, Micheu M, Calmac L, Pitic D, Dorobantu M, Brugger N, Huerzeler M, Wustmann K, Wahl A, Steck H, Seiler C, Ismail H, Linde J, Kofoed K, Dixen U, Soergaard M, Hove J, Willis J, Oxborough D, Augustine D, Knight D, Coghlan G, Shah R, Easaw J, Verseckaite R, Pilkauskaite G, Lapinskas T, Miliauskas S, Sakalauskas R, Jurkevicius R, Ozeke O, Turak O, Ozcan F, Cay S, Topaloglu S, Aras D, Tufekcioglu O, Golbasi Z, Aydogdu S. Club 35 Poster session Friday 13 December: 13/12/2013, 08:30-18:00 * Location: Poster area. Eur Heart J Cardiovasc Imaging 2013. [DOI: 10.1093/ehjci/jet229] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Zhang M, Mascia S, Rough S, Ward R, Seiler C, Wilson D. A novel lab-scale screen extruder for studying extrusion-spheronisation. Int J Pharm 2013; 455:285-97. [DOI: 10.1016/j.ijpharm.2013.07.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Revised: 06/15/2013] [Accepted: 07/08/2013] [Indexed: 11/15/2022]
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Zhang M, Wilson DI, Ward R, Seiler C, Rough SL. A comparison of screen and ram extrusion-spheronisation of simple pharmaceutical pastes based on microcrystalline cellulose. Int J Pharm 2013; 456:489-98. [PMID: 23999221 DOI: 10.1016/j.ijpharm.2013.08.030] [Citation(s) in RCA: 11] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Revised: 08/09/2013] [Accepted: 08/14/2013] [Indexed: 12/01/2022]
Abstract
The performance of two laboratory-scale extrusion apparatuses used to approximate the action of an industrial screen extruder, namely a multi-holed die ram extruder and a roller screen extruder, were compared. Both devices featured short dies (ram 2mm, screen 1mm) with die diameter 1mm and hole area fraction approaching 0.25. A series of water/microcrystalline cellulose (MCC) pastes with water contents varying from 45 to 60 wt% were extruded and pellets obtained from subsequent spheronisation of the extrudates characterised in terms of size and shape. Each device exhibited a different range of processing windows for acceptable spheronised products, with the ram apparatus being able to extrude a wider range of paste water contents than the screen device. The pellets obtained from extrusion-spheronisation (E-S) of the pastes via the screen device were in general smaller, with a wider size distribution, than those from ram E-S. These results are attributed to the different mechanical histories experienced by the pastes in the two types of extruder, which lead to different extrudate densities being achieved. MCC/water/calcium carbonate pastes were also tested, where the latter component represented a 'hard' (non-deformable) active pharmaceutical ingredient. Addition of calcium carbonate increased the stiffness of the paste, which could be countered by adjusting the water content of the deformable MCC/water matrix within the extrudability limits of the latter material.
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Affiliation(s)
- M Zhang
- Department of Chemical Engineering and Biotechnology, New Museums Site, Pembroke Street, Cambridge CB2 3RA, UK
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Seiler C, Engler R, Berner L, Stoller M, Meier P, Steck H, Traupe T. Prognostic relevance of coronary collateral function: confounded or causal relationship? Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.p3113] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Wilhelm M, Rimensberger C, Carlen F, Brugger N, Krause R, Seiler C. Cardiac adaptations in non-elite ultra-endurance athletes: Focus on the right ventricle and arrhythmias. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht308.1786] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Brugger N, Krause R, Carlen F, Rimensberger C, Hille R, Steck H, Wilhelm M, Seiler C. Effect of lifetime endurance training on left atrial mechanical function and on the risk of atrial fibrillation. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht308.1907] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Traupe T, Gloekler S, Stoller M, Steck H, Khattab AA, Vogel R, Seiler C. Effect of heart rate reduction by ivabradine on collateral function in patients with chronic stable coronary artery disease. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.p3114] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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van der Hoeven NW, Teunissen PF, Werner GS, Delewi R, Schirmer SH, Traupe T, van der Laan AM, Tijssen JG, Piek JJ, Seiler C, van Royen N. Clinical parameters associated with collateral development in patients with chronic total coronary occlusion. Heart 2013; 99:1100-5. [DOI: 10.1136/heartjnl-2013-304006] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Rutz T, de Marchi SF, Roelli P, Gloekler S, Traupe T, Steck H, Eshtehardi P, Cook S, Vogel R, Mohacsi P, Seiler C. Quantitative myocardial contrast echocardiography: a new method for the non-invasive detection of chronic heart transplant rejection. Eur Heart J Cardiovasc Imaging 2013; 14:1187-94. [DOI: 10.1093/ehjci/jet066] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Wilhelm M, Zueger T, De Marchi S, Rimoldi SF, Brugger N, Steiner R, Stettler C, Nuoffer JM, Seiler C, Ith M. Inflammation and atrial remodeling after a mountain marathon. Scand J Med Sci Sports 2012; 24:519-25. [PMID: 23253265 DOI: 10.1111/sms.12030] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/12/2012] [Indexed: 12/01/2022]
Abstract
Endurance athletes have an increased risk of atrial fibrillation. We performed a longitudinal study on elite runners of the 2010 Jungfrau Marathon, a Swiss mountain marathon, to determine acute effects of long-distance running on the atrial myocardium. Ten healthy male athletes were included and examined 9 to 1 week prior to the race, immediately after, and 1, 5, and 8 days after the race. Mean age was 34.9 ± 4.2 years, and maximum oxygen consumption was 66.8 ± 5.8 mL/kg*min. Mean race time was 243.9 ± 17.7 min. Electrocardiographic-determined signal-averaged P-wave duration (SAPWD) increased significantly after the race and returned to baseline levels during follow-up (128.7 ± 10.9 vs. 137.6 ± 9.8 vs. 131.5 ± 8.6 ms; P < 0.001). Left and right atrial volumes showed no significant differences over time, and there were no correlations of atrial volumes and SAPWD. Prolongation of the SAPWD was accompanied by a transient increase in levels of high-sensitivity C-reactive protein, proinflammatory cytokines, total leucocytes, neutrophil granulocytes, pro atrial natriuretic peptide and high-sensitivity troponin. In conclusion, marathon running was associated with a transient conduction delay in the atria, acute inflammation and increased atrial wall tension. This may reflect exercise-induced atrial myocardial edema and may contribute to atrial remodeling over time, generating a substrate for atrial arrhythmias.
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Affiliation(s)
- M Wilhelm
- University Clinic for Cardiology, University Hospital and University of Bern, Bern, Switzerland
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37
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Saam T, Schwarz F, Karpinska A, Poppert H, Opherk C, Cyran C, Nikolaou K, Seiler C, Reiser MF, Clevert DA, Dichgans M. Carotid Plaque Imaging in Acute Stroke (CAPIAS): Eine multizentrische Studie (www.clinicaltrials.gov NCT01284933). ROFO-FORTSCHR RONTG 2012. [DOI: 10.1055/s-0032-1311228] [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: 10/28/2022]
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38
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Cook S, Eshtehardi P, Kalesan B, Raber L, Wenaweser P, Togni M, Moschovitis A, Vogel R, Seiler C, Eberli FR, Luscher T, Meier B, Juni P, Windecker S. Impact of incomplete stent apposition on long-term clinical outcome after drug-eluting stent implantation. Eur Heart J 2012; 33:1334-43. [DOI: 10.1093/eurheartj/ehr484] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
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39
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Bittner S, Göbel K, Seiler C, Wiendl H, Meuth S. Evoked potential abnormalities in RRMS patients are improved under natalizumab therapy. KLIN NEUROPHYSIOL 2011. [DOI: 10.1055/s-0031-1272711] [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: 10/18/2022]
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40
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41
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Rutz T, Gloekler S, de Marchi SF, Traupe T, Meier P, Eshtehardi P, Cook S, Vogel R, Mohacsi P, Seiler C. Coronary collateral function in the transplanted heart: propensity score matching with coronary artery disease. Heart 2011; 97:557-63. [DOI: 10.1136/hrt.2010.215137] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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42
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Fujita M, Kohanbash G, McDonald HA, Delamarre L, Decker SA, Ohlfest JR, Okada H, Okada H, Kalinski P, Ueda R, Hoji A, Kohanbash G, Donegan TE, Mintz AH, Engh JA, Bartlett DL, Brown CK, Zeh H, Holtzman MP, Reinhart TA, Whiteside TL, Butterfield LH, Hamilton RL, Potter DM, Pollack IF, Salazar AM, Lieberman FS, Olin MR, Andersen BM, Grogan PT, Hunt M, Popescu FE, Xiong ZL, Seiler C, Forster CL, SantaCruz KS, Chen W, Blazar BR, Ohlfest JR, Hu J, Wheeler CJ, Phuphanich S, Rudnick J, Nuno M, Serrano N, Dantis J, Richardson J, Mazer M, Wang HQ, Chu R, Black KL, Yu J, Li YM, Vallera DA, Hall WA, Rudnick JD, Wheeler CJ, Phuphanich S, Chu RM, Mazer M, Wang H, Serrano N, Nuno M, Richardson J, Hu J, Black KL, Yu JS, Yang I, Han S, Tihan T, Wrensch M, Parsa AT, Li YM, Vallera DA, Hall WA, Andersen BM, Hunt MA, Gallardo JL, Seiler C, Pluhar GE, Ohlfest JR, Brown CE, Starr R, Martinez C, Bading J, Ressler JA, Badie B, Jensen MC, Glick RP, Ksendzovsky A, Zengou R, Polak P, Simonini V, Lichtor T, Feinstein D, Chow KK, Ahmed N, Salsman VS, Kew Y, Powell S, Grossman R, Heslop HE, Gottschalk S, Barnett FH, Marchetti V, Wang M, Johnson A, Scheppke L, Jacobson R, Nemerow G, Friedlander M, Ahmed N, Salsman V, Kew Y, Leen AM, Bollard CM, Powell S, Grossman R, Rooney C, Heslop HE, Gottschalk S, New PZ, Bollard CM, Salvoldo B, Heslop H. Immunotherapy. Neuro Oncol 2010. [DOI: 10.1093/neuonc/noq116.s5] [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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43
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Davuluri G, Seiler C, Abrams J, Soriano AJ, Pack M. Differential effects of thin and thick filament disruption on zebrafish smooth muscle regulatory proteins. Neurogastroenterol Motil 2010; 22:1100-e285. [PMID: 20591105 PMCID: PMC3902778 DOI: 10.1111/j.1365-2982.2010.01545.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
BACKGROUND The smooth muscle actin binding proteins Caldesmon and Tropomyosin (Tm) promote thin filament assembly by stabilizing actin polymerization, however, whether filament assembly affects either the stability or activation of these and other smooth muscle regulatory proteins is not known. METHODS Measurement of smooth muscle regulatory protein levels in wild type zebrafish larvae following antisense knockdown of smooth muscle actin (Acta2) and myosin heavy chain (Myh11) proteins, and in colourless mutants that lack enteric nerves. Comparison of intestinal peristalsis in wild type and colourless larvae. KEY RESULTS Knockdown of Acta2 led to reduced levels of phospho-Caldesmon and Tm. Total Caldesmon and phospho-myosin light chain (p-Mlc) levels were unaffected. Knockdown of Myh11 had no effect on the levels of either of these proteins. Phospho-Caldesmon and p-Mlc levels were markedly reduced in colourless mutants that have intestinal motility comparable with wild type larvae. CONCLUSIONS & INFERENCES These in vivo findings provide new information regarding the activation and stability of smooth muscle regulatory proteins in zebrafish larvae and their role in intestinal peristalsis in this model organism.
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Affiliation(s)
- G. Davuluri
- Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - C. Seiler
- Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - J. Abrams
- Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - A. J. Soriano
- Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - M. Pack
- Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA, USA,Department of Cell and Developmental Biology, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
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Brenner H, Chang-Claude J, Seiler C, Rickert A, Hoffmeister M. Protection from colorectal cancer after colonoscopy: Population-based case-control study. Gesundheitswesen 2010. [DOI: 10.1055/s-0030-1266163] [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: 10/19/2022]
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Rutz T, de Marchi SF, Schwerzmann M, Vogel R, Seiler C. Right ventricular absolute myocardial blood flow in complex congenital heart disease. Heart 2010; 96:1056-62. [DOI: 10.1136/hrt.2009.191718] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Gloekler S, Meier P, de Marchi SF, Rutz T, Traupe T, Rimoldi SF, Wustmann K, Steck H, Cook S, Vogel R, Togni M, Seiler C. Coronary collateral growth by external counterpulsation: a randomised controlled trial. Heart 2009; 96:202-7. [DOI: 10.1136/hrt.2009.184507] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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47
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Skoetz N, Arenz D, Ganzera S, Kaulhausen T, Siewe J, Oh JS, Zarghooni K, Sauerland S, Seiler C, Cornely OA. [The curriculum for rotation physicians within the CHIR-Net]. Chirurg 2009; 80:466, 468-72. [PMID: 19387560 DOI: 10.1007/s00104-009-1714-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
INTRODUCTION CHIR-Net is a German national surgical network for clinical trials. It is supported by the Federal Ministry for Education and Research (BMBF 01GH0605) to establish infrastructure and expertise in the conduct of clinical trials within the surgical disciplines. An important aspect of this network is a qualified advanced training for physicians deployed at the CHIR-Net as part of a job rotation. METHODS A catalog of activities for the time of rotation within the network has been developed in cooperation with the CHIR-Net, the deployed physicians and cooperating regional clinical trials centers (ZKS/KKS). RESULT The focal points of the physicians' rotation in the CHIR-Net are outlined in a curriculum that has been established and evaluated in the network since January 2008. CONCLUSION After the rotation time at the CHIR-Net the skilled physicians act as multipliers of specialized knowledge on clinical research. In this way the acquired expertise will be transferred into clinical practice and treatment of patients within research projects will benefit directly.
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Affiliation(s)
- N Skoetz
- Regionalzentrum Witten-Herdecke/Köln des CHIR-Net, Köln, Deutschland
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Meier P, Antonov J, Zbinden R, Kuhn A, Zbinden S, Gloekler S, Delorenzi M, Jaggi R, Seiler C. Non-invasive gene-expression-based detection of well-developed collateral function in individuals with and without coronary artery disease. Heart 2008; 95:900-8. [DOI: 10.1136/hrt.2008.145383] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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49
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Vogel R, Indermuhle A, Meier P, Seiler C. Quantitative stress echocardiography in coronary artery disease using contrast-based myocardial blood flow measurements: prospective comparison with coronary angiography. Heart 2008; 95:377-84. [DOI: 10.1136/hrt.2007.134577] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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50
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Engel K, Reuter J, Seiler C, Mönting JS, Jakob T, Schempp CM. Anti-inflammatory effect of pimecrolimus in the sodium lauryl sulphate test. J Eur Acad Dermatol Venereol 2008; 22:447-50. [DOI: 10.1111/j.1468-3083.2007.02477.x] [Citation(s) in RCA: 22] [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: 11/26/2022]
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