1
|
Mathold K, Nobin R, Brudin L, Carlsson M, Wanby P. Albumin-to-alkaline phosphatase ratio may be a better predictor of survival than sclerostin, dickkopf-1, osteopontin, osteoprotegerin and osteocalcin. Heliyon 2024; 10:e29639. [PMID: 38644839 PMCID: PMC11031828 DOI: 10.1016/j.heliyon.2024.e29639] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 08/18/2022] [Revised: 03/11/2024] [Accepted: 04/11/2024] [Indexed: 04/23/2024] Open
Abstract
Objectives The value of biochemical markers of bone turnover (BTMs) in predicting survival and disease remains unclear. In a prospective study we evaluated the novel biomarkers for bone turnover sclerostin, dickkopf-1 (DKK-1), osteopontin (OPN), osteoprotegerin (OPG) and osteocalcin (OC), as well as a traditional biomarker, alkaline phosphatase (ALP) in relation to risk of mortality, cardiovascular events and fractures. Participants and Methods:Routine blood tests and serum BTMs, including ALP, were analyzed in patients with hip fracture n = 97, stroke n = 71 and healthy volunteers n = 83 (mean age 86, 83 and 77, respectively), followed for 7 years. Hazard Ratios (HR) were calculated for mortality, cardiovascular events and fractures in relation to these biomarkers. After adding the albumin-to-ALP ratio (AAPR) a post hoc analysis was performed. Results 120 participants died during the study. In the entire group of patients and volunteers (n = 251) higher AAPR (HR 0.28, 95 % CI 0.14-0.59, p < 0.001) was associated with decreased mortality. OPN and OPG were associated with mortality risk only in the univariate statistical analysis. HR for high AAPR in relation to new cardiovascular events was borderline significant (HR 0.29, 95 % CI 0.08-1.06, p = 0.061). None of the examined biomarkers were associated with new fractures, nor with an increased risk of a new cardiovascular event. Conclusions AAPR may be a better predictor of mortality than the more novel BTMs, and higher AAPR could be associated with longer life expectancy. Further studies should determine the clinical usefulness of AAPR as a biomarker of mortality and cardiovascular disease.
Collapse
Affiliation(s)
- K. Mathold
- Department of Primary Care, Kalmar, Sweden
| | - R. Nobin
- Department of Orthopedics, Kalmar, Sweden
| | - L. Brudin
- Department of Clinical Physiology, Kalmar and Department of Medical and Health Sciences, University of Linköping, Sweden
| | - M. Carlsson
- Department of Clinical Chemistry, Kalmar and Department of Medicine and Optometry, Linnaeus University, Sweden
| | - P. Wanby
- Department of Internal Medicine, Section of Endocrinology, Kalmar, Department of Medical and Health Sciences, University of Linköping and Department of Medicine and Optometry, Linnaeus University, Sweden
| |
Collapse
|
2
|
Berg J, Jablonowski R, Nordlund D, Ryd D, Heiberg E, Carlsson M, Arheden H. Hypothermia yields favourable cardiac energetics in experimental ischemia/reperfusion – insights from non-invasive pressure-volume loops by CMR. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2911] [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/Introduction
In experimental studies, mild hypothermia (<35°C) has reduced infarct size [1], potentially through reduced reperfusion injury [2], but human trials have been ambiguous [3]. Furthermore, a pressure-volume (PV) loop framework is the gold standard for assessing cardiac performance, but the invasive approach limits its clinical use. Therefore, we used a porcine model of ischemia/reperfusion with cardiovascular magnetic resonance (CMR) imaging throughout one week to acquire non-invasive PV loops.
Purpose
To quantify the cardioprotective effects of hypothermia at reperfusion by serial CMR imaging in a perspective of cardiac energy and mechanics.
Methods
Normothermia and Hypothermia groups (n=7+7 pigs) were imaged with CMR at baseline and subjected to 40 minutes of normothermic ischemia by catheter intervention. Thereafter, the Hypothermia group was rapidly cooled (<35°C) for 5 minutes before reperfusion. Additional imaging at two hours, 24 hours, and seven days were used to assess ventricular volumes and ischemic injuries. Infarct size was determined by high-resolution ex-vivo T1-weighted images.
Results
Figure 1 shows that stroke volume (SV: p=0.029; Friedmans test) and ejection fraction (EF: p=0.068) were notably reduced post-reperfusion in the Normothermia group. In contrast, the decreases were ameliorated in the Hypothermia group (SV: p=0.77; EF: p=0.13). Mean arterial pressure (MAP) was stable in the Normothermia group (p=0.77) but dropped two hours post-reperfusion in hypothermic animals (p=0.007). Over one week, both groups experienced the same decrease and partial recovery pattern for stroke work, external power, and ventricular-arterial coupling. Still, the adverse effects from ischemia were generally attenuated in the Hypothermia group. Although not significant, ischemia/reperfusion caused smaller infarcts in the Hypothermia group (10±8% vs 15±8%; p=0.32). The change in PV loop variables from baseline to 24 hours was compared with infarct size for each group. Though statistical power was limited, the general trend in analyses of covariance indicated that hypothermia has cardioprotective properties incremental to reducing infarct sizes (Figure 2), such as higher external power (p=0.061) and lower arterial elastance (p=0.015).
Conclusion
Using non-invasive PV loops by CMR, we observed that mild hypothermia before reperfusion results in favourable cardiac energetics that alleviates the heart's work after an ischemia/reperfusion injury during the first week. This study suggests that hypothermia has cardioprotective properties, incremental to reducing infarct size. The primary cardioprotective mechanism was likely an afterload reduction unloading the injured left ventricle.
Funding Acknowledgement
Type of funding sources: Foundation. Main funding source(s): The Swedish Heart-Lung FoundationThe Medical Faculty of Lund University (ALF)
Collapse
Affiliation(s)
- J Berg
- Lund University, Department of Clinical Sciences Lund, Clinical Physiology , Lund , Sweden
| | - R Jablonowski
- Lund University, Department of Clinical Sciences Lund, Clinical Physiology , Lund , Sweden
| | - D Nordlund
- Lund University, Department of Clinical Sciences Lund, Clinical Physiology , Lund , Sweden
| | - D Ryd
- Lund University, Department of Clinical Sciences Lund, Clinical Physiology , Lund , Sweden
| | - E Heiberg
- Lund University, Department of Clinical Sciences Lund, Clinical Physiology , Lund , Sweden
| | - M Carlsson
- National Institute of Health (Home), Laboratory of Clinical Physiology, National Heart Lung and Blood Institute, Washington , DC , United States of America
| | - H Arheden
- Lund University, Department of Clinical Sciences Lund, Clinical Physiology , Lund , Sweden
| |
Collapse
|
3
|
Berg J, Jablonowski R, Mohammad M, Solem K, Borgquist R, Ostenfeld E, Arheden H, Carlsson M. Ventricular longitudinal shortening is an independent predictor of death in heart failure patients with reduced ejection fraction. Sci Rep 2021; 11:20280. [PMID: 34645886 PMCID: PMC8514526 DOI: 10.1038/s41598-021-99613-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 09/14/2021] [Indexed: 01/07/2023] Open
Abstract
Reduced ventricular longitudinal shortening measured by atrioventricular plane displacement (AVPD) and global longitudinal strain (GLS) are prognostic markers in heart disease. This study aims to determine if AVPD and GLS with cardiovascular magnetic resonance (CMR) are independent predictors of cardiovascular (CV) and all-cause death also in heart failure with reduced ejection fraction (HFrEF). Patients (n = 287) were examined with CMR and AVPD, GLS, ventricular volumes, myocardial fibrosis/scar were measured. Follow-up was 5 years with cause of death retrieved from a national registry. Forty CV and 60 all-cause deaths occurred and CV non-survivors had a lower AVPD (6.4 ± 2.0 vs 8.0 ± 2.4 mm, p < 0.001) and worse GLS (− 6.1 ± 2.2 vs − 7.7 ± 3.1%, p = 0.001). Kaplan–Meier analyses displayed increased survival for patients in the highest AVPD- and GLS-tertiles vs. the lowest tertiles (AVPD: p = 0.001, GLS: p = 0.013). AVPD and GLS showed in univariate analysis a hazard ratio (HR) of 1.30 (per-mm-decrease) and 1.19 (per-%-decrease) for CV death. Mean AVPD and GLS were independent predictors of all-cause death (HR = 1.24 per-mm-decrease and 1.15 per-%-decrease), but only AVPD showed incremental value over age, sex, body-mass-index, EF, etiology and fibrosis/scar for CV death (HR = 1.33 per-mm-decrease, p < 0.001). Ventricular longitudinal shortening remains independently prognostic for death in HFrEF even after adjusting for well-known clinical risk factors.
Collapse
Affiliation(s)
- J Berg
- Clinical Physiology, Department of Clinical Sciences Lund, Lund University, Skåne University Hospital, Lund, Sweden.,Syntach AB, Lund, Sweden
| | - R Jablonowski
- Clinical Physiology, Department of Clinical Sciences Lund, Lund University, Skåne University Hospital, Lund, Sweden
| | - M Mohammad
- Clinical Physiology, Department of Clinical Sciences Lund, Lund University, Skåne University Hospital, Lund, Sweden
| | | | - R Borgquist
- Cardiology, Department of Clinical Sciences Lund, Lund University, Skåne University Hospital, Lund, Sweden
| | - E Ostenfeld
- Clinical Physiology, Department of Clinical Sciences Lund, Lund University, Skåne University Hospital, Lund, Sweden
| | - H Arheden
- Clinical Physiology, Department of Clinical Sciences Lund, Lund University, Skåne University Hospital, Lund, Sweden
| | - M Carlsson
- Clinical Physiology, Department of Clinical Sciences Lund, Lund University, Skåne University Hospital, Lund, Sweden.
| |
Collapse
|
4
|
Lindholm A, Kjellstrom B, Seemann F, Carlsson M, Hesselstrand R, Radegran G, Arheden H, Ostenfeld E. Atrioventricular plane displacement and regional contribution to stroke volume to predict outcome in pulmonary arterial hypertension. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1965] [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
Patients with pulmonary arterial hypertension (PAH) exhibit high mortality, partially related to right heart failure. Right ventricular (RV) volumes and ejection fraction (EF) can be measured accurately with cardiac magnetic resonance (CMR), but EF is a crude measure of cardiac function. Additional methods for risk assessment and prognosis are of value. Stroke volume (SV) is generated by longitudinal, lateral and septal myocardial contraction. Longitudinal contribution to SV (SVlong%) generated from the atrioventricular displacement (AVPD) is the major contributor to SV in both the left ventricle (LV) and RV. AVPD in both sides and LVSVlong% are lower in patients with PAH compared to controls. However, it is unknown if altered AVPD or regional contributions to SV are prognostic in patients with PAH. The aim of this study was therefore to evaluate if AVPD, longitudinal, lateral or septal contribution to LVSV and RVSV are associated with death or lung transplantation in patients with PAH.
Purpose
To evaluate if biventricular AVPD, and regional contributions to SV are associated with outcome in patients with PAH.
Methods
Seventy-one patients with PAH and 20 sex and age-matched healthy controls underwent CMR. Endocardial and epicardial borders and RV insertion points were defined in end diastole and end systole in cine short-axis stacks to compute biventricular volumes, SVlat% and SVsept%. Eight atrioventricular points were defined in end diastole and end systole in 2-, 3- and 4-chamber cine long-axis views, for computation of AVPD and SVlong%. Cut-off values for survival analysis were defined as above or below mean ± 2 standard deviations from the healthy controls. Outcome was defined as death or lung-transplantation.
Results
Median follow-up time was 3.6 [IQR 3.7] years. AVPD, SVlong%, SVlat% in both ventricles and SVsept% were altered in PAH compared to controls. Transplantation-free survival was lower with values below cut-off for LV-AVPD (hazard ratio (HR)=2.1, 95% CI: 1.2–3.9, p=0.02) and RV-AVPD (HR=9.8, 95% CI: 4.6–21.1, p=0.005) (fig 1). In cox regression analysis, decreased LV-AVPD and RV-AVPD inferred lower transplantation-free survival (LV: HR=1.16 per mm decrease, p=0.007; RV: HR=1.11 per mm decrease, p=0.01) (table 1). LVEF, RVEF, LV-SVlong%, RV-SVlong%, LV-SVlat%, RV-SVlat% or SVsept% did not affect outcome (table 1).
Conclusions
Decreased left and right AVDP were associated with decreased transplantation-free survival in patients with PAH. There were no associations between ejection fraction, longitudinal, lateral or septal contribution to stroke volume.
Funding Acknowledgement
Type of funding sources: Public hospital(s). Main funding source(s): Skåne University Hospital, Region of Skåne Southern Healthcare Region of Sweden
Collapse
Affiliation(s)
| | | | - F Seemann
- Skane University Hospital, Lund, Sweden
| | | | | | | | - H Arheden
- Skane University Hospital, Lund, Sweden
| | | | | |
Collapse
|
5
|
|
6
|
Fleck B, Carlsson M, Khomenko E, Rempel M, Steiner O, Vigeesh G. Acoustic-gravity wave propagation characteristics in three-dimensional radiation hydrodynamic simulations of the solar atmosphere. Philos Trans A Math Phys Eng Sci 2021; 379:20200170. [PMID: 33342376 DOI: 10.1098/rsta.2020.0170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/09/2020] [Indexed: 06/12/2023]
Abstract
There has been tremendous progress in the degree of realism of three-dimensional radiation magneto-hydrodynamic simulations of the solar atmosphere in the past decades. Four of the most frequently used numerical codes are Bifrost, CO5BOLD, MANCHA3D and MURaM. Here we test and compare the wave propagation characteristics in model runs from these four codes by measuring the dispersion relation of acoustic-gravity waves at various heights. We find considerable differences between the various models. The height dependence of wave power, in particular of high-frequency waves, varies by up to two orders of magnitude between the models, and the phase difference spectra of several models show unexpected features, including ±180° phase jumps. This article is part of the Theo Murphy meeting issue 'High-resolution wave dynamics in the lower solar atmosphere'.
Collapse
Affiliation(s)
- B Fleck
- ESA Science and Operations Department, c/o NASA/GSFC Code 671, Greenbelt, MD 20771, USA
| | - M Carlsson
- Rosseland Centre for Solar Physics, University of Oslo, Postboks 1029 Blindern, 0315 Oslo, Norway
- Institute of Theoretical Astrophysics, University of Oslo, Postboks 1029 Blindern, 0315 Oslo, Norway
| | - E Khomenko
- Instituto de Astrofísica de Canarias, La Laguna, 38205 Tenerife, Spain
- Departamento de Astrofísica, Universidad de La Laguna, La Laguna, 38205 Tenerife, Spain
| | - M Rempel
- High Altitude Observatory, NCAR, PO Box 3000, Boulder, CO 80307, USA
| | - O Steiner
- Leibniz-Institut für Sonnenphysik (KIS), Schöneckstrasse 6, 79104 Freiburg, Germany
- Istituto Ricerche Solari Locarno (IRSOL), Via Patocchi 57, 6605 Locarno-Monti, Switzerland
| | - G Vigeesh
- Leibniz-Institut für Sonnenphysik (KIS), Schöneckstrasse 6, 79104 Freiburg, Germany
| |
Collapse
|
7
|
Arvidsson P, Nelsson A, Magnusson M, Smith J, Carlsson M, Arheden H. Intraventricular hemodynamic forces do not differentiate between healthy controls and heart failure patients with preserved ejection fraction. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1018] [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
Background
Hemodynamic force analysis has been proposed as a noninvasive marker of cardiac function. In a recent study, longitudinal (apical-to-basal) hemodynamic forces were derived from anatomical MRI images and found decreased in heart failure with preserved ejection fraction (HFpEF) patients compared to controls, indicating a potential use for prognostication and testing of therapeutic response. This issue has not been investigated using the reference method of measurement.
Purpose
To investigate whether intraventricular hemodynamic forces computed using gold-standard cardiac magnetic resonance flow maps can reproducibly differentiate between healthy controls and HFpEF patients.
Methods
4D flow data were acquired in 59 subjects through cardiac magnetic resonance imaging using a 1.5T scanner (Siemens Healthcare, Erlangen, Germany). Hemodynamic forces within the LV were computed across the cardiac cycle using the Navier-Stokes equation to find the global pressure gradient, which was then integrated over the LV volume to produce the instantaneous hemodynamic force (unit: Newton) and subsequently normalized to ventricular volume, resulting in a force-volume index (N/l). Average longitudinal forces (root mean square, FRMS) were quantified over the entire cardiac cycle, with and without volume normalization.
Results
We studied 33 healthy subjects, 14 patients with HFpEF, 6 patients with HFmEF and 6 patients with HFrEF. Groups were similar with regards to sex, cardiac output, heart rate, systolic and diastolic blood pressure, and body surface area.
Volume-normalized FRMS did not differ between controls and HFpEF (0.86±0.19 vs. 0.75±0.19 N/l, p=0.08) while lower values were found in HFmEF (0.60±0.19 N/l, p=0.004) and HFrEF (0.38±0.15 N/l, p<0.0001) compared to controls (Figure 1A). There was a significant positive correlation between EF and FRMS, both for the entire population (R2 = 0.54, Figure 1B) and for patients (R2 = 0.67, p<0.0001 for both). Importantly, non-normalized FRMS did not differ between controls (Figure 1C, 0.10±0.03 N) and HFpEF (0.09±0.03 N, p=0.25), HFmEF (0.11±0.02 N, p=0.18) or HFrEF (0.09±0.02 N, p=0.67). Moreover, no correlation was seen between non-normalized FRMS and EF (Figure 1D).
Conclusions
Hemodynamic forces computed from reference standard 4D flow CMR data do not differentiate between healthy controls and HFpEF patients regardless of whether volume normalization is used or not. Our findings do not support a role for hemodynamic forces in HFpEF assessment.
Figure 1. (A) Volume-normalized hemodynamic forces over the entire cardiac cycle (lines: average values, shaded area: ±1SD for HFpEF), and (B) variation of volume-normalized average force, FRMS, with left ventricular ejection fraction (LVEF). (C), (D): When indexing to LV volume was not performed, the differences between groups was attenuated, and no correlation was seen between EF and FRMS.
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): Swedish Heart and Lung Foundation, Region of Scania
Collapse
Affiliation(s)
- P Arvidsson
- Lund University, Clinical Physiology, Lund, Sweden
| | - A Nelsson
- Lund University, Clinical Physiology, Lund, Sweden
| | - M Magnusson
- Lund University, Department of Cardiology, Lund, Sweden
| | - J.G Smith
- Lund University, Department of Cardiology, Lund, Sweden
| | - M Carlsson
- Lund University, Department of Cardiology, Lund, Sweden
| | - H Arheden
- Lund University, Clinical Physiology, Lund, Sweden
| |
Collapse
|
8
|
Wagg A, Gibson W, Carlsson M, Elsobky M. Subjective and objective response to treatment of overactive bladder: A pooled analysis of randomised controlled trials of fesoterodine in patients of >65 years. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33117-7] [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] Open
|
9
|
Berg J, Jablonowski R, Nordlund D, Kopic S, Bidhult S, Xanthis CG, Saeed M, Solem K, Arheden H, Carlsson M. Decreased atrioventricular plane displacement after acute myocardial infarction yields a concomitant decrease in stroke volume. J Appl Physiol (1985) 2019; 128:252-263. [PMID: 31854250 PMCID: PMC7052588 DOI: 10.1152/japplphysiol.00480.2019] [Citation(s) in RCA: 5] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Acute myocardial infarction (AMI) can progress to heart failure, which has a poor prognosis. Normally, 60% of stroke volume (SV) is attributed to the longitudinal ventricular shortening and lengthening evident in the atrioventricular plane displacement (AVPD) during the cardiac cycle, but there is no information on how the relationship changes between SV and AVPD before and after AMI. Therefore, the aim of this study was to determine how SV depends on AVPD before and after AMI in two swine models. Serial cardiac magnetic resonance imaging was carried out before and 1–2 h after AMI in a microembolization model (n = 12) and an ischemia-reperfusion model (n = 14). A subset of pigs (n = 7) were additionally imaged at 24 h and at 7 days. Cine and late gadolinium enhancement images were analyzed for cardiac function, AVPD measurements and infarct size estimation, respectively. AVPD decreased (P < 0.05) in all myocardial regions after AMI, with a concomitant SV decrease (P < 0.001). The ischemia-reperfusion model affected SV to a higher degree and had a larger AVPD decrease than the microembolization model (−29 ± 14% vs. −15 ± 18%; P < 0.05). Wall thickening decreased in infarcted areas (P < 0.001), and A-wave AVPD remained unchanged (P = 0.93) whereas E-wave AVPD decreased (P < 0.001) after AMI. We conclude that AVPD is coupled to SV independent of infarct type but likely to a greater degree in ischemia-reperfusion infarcts compared with microembolization infarcts. AMI reduces diastolic early filling AVPD but not AVPD from atrial contraction. These findings shed light on the physiological significance of atrioventricular plane motion when assessing acute and subacute myocardial infarction. NEW & NOTEWORTHY The link between cardiac longitudinal motion, measured as atrioventricular plane displacement (AVPD), and stroke volume (SV) is investigated in swine after acute myocardial infarction (AMI). This cardiac magnetic resonance study demonstrates a close coupling between AVPD and SV before and after AMI in an experimental setting and demonstrates that this connection is present in ischemia-reperfusion and microembolization infarcts, acutely and during the first week. Furthermore, AVPD is equally and persistently depressed in infarcted and remote myocardium after AMI.
Collapse
Affiliation(s)
- J Berg
- Lund University, Faculty of Medicine, Department of Clinical Sciences Lund, Clinical Physiology, Lund, Sweden
| | - R Jablonowski
- Lund University, Faculty of Medicine, Department of Clinical Sciences Lund, Clinical Physiology, Lund, Sweden
| | - D Nordlund
- Lund University, Faculty of Medicine, Department of Clinical Sciences Lund, Clinical Physiology, Lund, Sweden
| | - S Kopic
- Lund University, Faculty of Medicine, Department of Clinical Sciences Lund, Clinical Physiology, Lund, Sweden
| | - S Bidhult
- Lund University, Faculty of Medicine, Department of Clinical Sciences Lund, Clinical Physiology, Lund, Sweden
| | - C G Xanthis
- Lund University, Faculty of Medicine, Department of Clinical Sciences Lund, Clinical Physiology, Lund, Sweden
| | - M Saeed
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, California
| | | | - H Arheden
- Lund University, Faculty of Medicine, Department of Clinical Sciences Lund, Clinical Physiology, Lund, Sweden
| | - M Carlsson
- Lund University, Faculty of Medicine, Department of Clinical Sciences Lund, Clinical Physiology, Lund, Sweden.,Department of Radiology and Biomedical Imaging, University of California, San Francisco, California
| |
Collapse
|
10
|
Ögren M, Jha D, Dobberschütz S, Müter D, Carlsson M, Gulliksson M, Stipp SLS, Sørensen HO. Numerical simulations of NMR relaxation in chalk using local Robin boundary conditions. J Magn Reson 2019; 308:106597. [PMID: 31546178 DOI: 10.1016/j.jmr.2019.106597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 09/11/2019] [Accepted: 09/12/2019] [Indexed: 06/10/2023]
Abstract
The interpretation of nuclear magnetic resonance (NMR) data is of interest in a number of fields. In Ögren (2014) local boundary conditions for random walk simulations of NMR relaxation in digital domains were presented. Here, we have applied those boundary conditions to large, three-dimensional (3D) porous media samples. We compared the random walk results with known solutions and then applied them to highly structured 3D domains, from images derived using synchrotron radiation CT scanning of North Sea chalk samples. As expected, there were systematic errors caused by digitalization of the pore surfaces so we quantified those errors, and by using linear local boundary conditions, we were able to significantly improve the output. We also present a technique for treating numerical data prior to input into the ESPRIT algorithm for retrieving Laplace components of time series from NMR data (commonly called T-inversion).
Collapse
Affiliation(s)
- M Ögren
- Nano-Science Center, Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 København Ø, Denmark; School of Science and Technology, Örebro University, 701 82 Örebro, Sweden.
| | - D Jha
- Nano-Science Center, Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 København Ø, Denmark
| | - S Dobberschütz
- Nano-Science Center, Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 København Ø, Denmark
| | - D Müter
- Nano-Science Center, Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 København Ø, Denmark
| | - M Carlsson
- Center for Mathematical Sciences, Lund University, Box 118, 22100 Lund, Sweden
| | - M Gulliksson
- School of Science and Technology, Örebro University, 701 82 Örebro, Sweden
| | - S L S Stipp
- Nano-Science Center, Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 København Ø, Denmark
| | - H O Sørensen
- Nano-Science Center, Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 København Ø, Denmark
| |
Collapse
|
11
|
Morgan-Sagastume F, Jacobsson S, Olsson LE, Carlsson M, Gyllenhammar M, Sárvári Horváth I. Anaerobic treatment of oil-contaminated wastewater with methane production using anaerobic moving bed biofilm reactors. Water Res 2019; 163:114851. [PMID: 31323501 DOI: 10.1016/j.watres.2019.07.018] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 06/14/2019] [Accepted: 07/08/2019] [Indexed: 06/10/2023]
Abstract
Oil-contaminated wastewaters are generally treated by a combination of physico-chemical and biological methods. Interest in the anaerobic treatment of oily wastewaters has increased since it complements aerobic treatment and produces energy in the form of methane. The objectives of this study were to characterise the anaerobic process spontaneously occurring in a full-scale storage tank at a facility treating waste oil and oil-contaminated effluents, and to evaluate the applicability of an anaerobic moving bed biofilm reactor (AnMBBR) and an anaerobic contact reactor (ACR) for treating the oil contaminated wastewater feeding the storage tank. Three lab-scale reactors were operated in parallel over 465 days: one mesophilic and one thermophilic AnMBBR, and one thermophilic ACR. The wastewater had a high strength with an average chemical oxygen demand (COD) of 36 g/L with a soluble fraction of 80%. The BOD7/COD ratios varied between 0.1 and 0.5, indicating low aerobic degradability. However, biomethane potential tests indicated some level of anaerobic degradability with methane yields between 150 and 200 NmL/gCOD. The full-scale storage tank operated at low organic loading rates (0.35-0.43 kgCOD/m3d), and long hydraulic retention times (HRT = 83-104 d). In comparison, the AnMBBRs achieved similar COD reductions (60%) as the full-scale tank but at a much shorter HRT of 30 d. Similar efficiency could only be reached at longer HRTs (43 d) in the ACR due to low biomass levels resulting from poor sludge settleability. The methane yield was higher (210 NmLCH4/COD removed) in the AnMBBR operated at 37 °C, compared to the other reactors working at 50 °C (180 NmLCH4/COD removed). This reactor also maintained a higher COD removal (67%) at an increased OLR of 1.1 kgCOD/m3d than the AnMBBR at 50 °C. The microbial composition of the biomass from the full-scale tank and the laboratory reactors provided evidence for the conversion of oil-contaminated wastewater into methane with a relatively high abundance of hydrogenotrophic methanogens.
Collapse
Affiliation(s)
- F Morgan-Sagastume
- AnoxKaldnes, Veolia Water Technologies AB, Klosterängsvägen 11a, 226 47, Lund, Sweden
| | - S Jacobsson
- AnoxKaldnes, Veolia Water Technologies AB, Klosterängsvägen 11a, 226 47, Lund, Sweden; Swedish Centre for Resource Recovery, University of Borås, 501 90, Borås, Sweden
| | - L E Olsson
- AnoxKaldnes, Veolia Water Technologies AB, Klosterängsvägen 11a, 226 47, Lund, Sweden
| | - M Carlsson
- AnoxKaldnes, Veolia Water Technologies AB, Klosterängsvägen 11a, 226 47, Lund, Sweden
| | - M Gyllenhammar
- Stena Recycling International AB, Box 4088, 400 40, Gothenburg, Sweden
| | - I Sárvári Horváth
- Swedish Centre for Resource Recovery, University of Borås, 501 90, Borås, Sweden.
| |
Collapse
|
12
|
Frieberg P, Liuba P, Alsafi Z, Johansson Ramgren J, Tran PK, Carlsson M. P141Same-day CMR and pre-operative predictive simulation of Fontan pulmonary blood flow. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez117.004] [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: 11/12/2022] Open
Affiliation(s)
- P Frieberg
- Lund University, Department of Clinical Sciences Lund, Clinical Physiology, Skåne University Hospital, Lund, Sweden
| | - P Liuba
- Lund University, Department of Clinical Sciences Lund, Pediatric heart center, Skåne University Hospital, Lund, Sweden
| | - Z Alsafi
- Lund University, Department of Clinical Sciences Lund, Pediatric heart center, Skåne University Hospital, Lund, Sweden
| | - J Johansson Ramgren
- Lund University, Department of Clinical Sciences Lund, Pediatric heart center, Skåne University Hospital, Lund, Sweden
| | - P-K Tran
- Lund University, Department of Clinical Sciences Lund, Pediatric heart center, Skåne University Hospital, Lund, Sweden
| | - M Carlsson
- Lund University, Department of Clinical Sciences Lund, Clinical Physiology, Skåne University Hospital, Lund, Sweden
| |
Collapse
|
13
|
Karlsson J, Solem K, Jablonowski R, Seeman F, Borgquist R, Heiberg E, Arheden H, Carlsson M. P157The relationship between longitudinal function and symptoms in patients with heart failure with reduced ejection fraction. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez117.020] [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: 11/14/2022] Open
Affiliation(s)
- J Karlsson
- Lund University, Department of Clinical Sciences Lund, Clinical Physiology, Lund, Sweden
| | | | - R Jablonowski
- Lund University, Department of Clinical Sciences Lund, Clinical Physiology, Lund, Sweden
| | - F Seeman
- Lund University, Department of Clinical Sciences Lund, Clinical Physiology, Lund, Sweden
| | - R Borgquist
- Lund University, Department of Clinical Sciences Lund, Cardiology, Sweden, Lund, Sweden
| | - E Heiberg
- Lund University, Department of Clinical Sciences Lund, Clinical Physiology, Lund, Sweden
| | - H Arheden
- Lund University, Department of Clinical Sciences Lund, Clinical Physiology, Lund, Sweden
| | - M Carlsson
- Lund University, Department of Clinical Sciences Lund, Clinical Physiology, Lund, Sweden
| |
Collapse
|
14
|
Stephensen SS, Ostenfeld E, Steding-Ehrenborg S, Kutty S, Arheden H, Thilen U, Carlsson M. P144Transcatheter closure of atrial septal defect in adults - time-course of atrial and ventricular remodeling and effects on exercise capacity. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez117.007] [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: 11/13/2022] Open
Affiliation(s)
| | - E Ostenfeld
- Lund University, Clinical Physiology, Lund, Sweden
| | | | - S Kutty
- Johns Hopkins University of Baltimore, Baltimore, United States of America
| | - H Arheden
- Lund University, Clinical Physiology, Lund, Sweden
| | - U Thilen
- Lund University, Cardiology, Lund, Sweden
| | - M Carlsson
- Lund University, Clinical Physiology, Lund, Sweden
| |
Collapse
|
15
|
Oestenson B, Ostenfeld E, Bakos Z, Kanski M, Heiberg E, Arheden H, Borgquist R, Carlsson M. P156Longitudinal ventricular function to determine the effect of cardiac resynchronization therapy in patients with heart failure. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez117.019] [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: 11/13/2022] Open
Affiliation(s)
- B Oestenson
- Skane University Hospital, Department of Clinical Physiology and Nuclear Medicine, Lund, Sweden
| | - E Ostenfeld
- Skane University Hospital, Department of Clinical Physiology and Nuclear Medicine, Lund, Sweden
| | - Z Bakos
- Skane University Hospital, Department of Arrhythmia, Lund, Sweden
| | - M Kanski
- Skane University Hospital, Department of Clinical Physiology and Nuclear Medicine, Lund, Sweden
| | - E Heiberg
- Skane University Hospital, Department of Clinical Physiology and Nuclear Medicine, Lund, Sweden
| | - H Arheden
- Skane University Hospital, Department of Clinical Physiology and Nuclear Medicine, Lund, Sweden
| | - R Borgquist
- Skane University Hospital, Department of Arrhythmia, Lund, Sweden
| | - M Carlsson
- Skane University Hospital, Department of Clinical Physiology and Nuclear Medicine, Lund, Sweden
| |
Collapse
|
16
|
Sjoberg P, Ostenfeld E, Carlsson M. 278Atrioventricular coupling before and after pulmonary valve replacement in patients with tetralogy of fallot. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez121.003] [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: 11/13/2022] Open
Affiliation(s)
- P Sjoberg
- Lund University, Department of Clinical Sciences, Clinical Physiology, Skåne University Hospital, Lund, Sweden
| | - E Ostenfeld
- Lund University, Department of Clinical Sciences, Clinical Physiology, Skåne University Hospital, Lund, Sweden
| | - M Carlsson
- Lund University, Department of Clinical Sciences, Clinical Physiology, Skåne University Hospital, Lund, Sweden
| |
Collapse
|
17
|
Mathold K, Wanby P, Brudin L, Von SP, Carlsson M. Alterations in bone turnover markers in patients with noncardio-embolic ischemic stroke. PLoS One 2018; 13:e0207348. [PMID: 30496210 PMCID: PMC6264871 DOI: 10.1371/journal.pone.0207348] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 10/30/2018] [Indexed: 02/06/2023] Open
Abstract
Background The major cause of ischemic stroke is unstable or thrombogenic atherosclerotic plaques. Vascular calcification, a process that appears crucial for plaque stability, shares common features with bone formation. Many bone turnover proteins exhibit metabolic properties, but the evidence is conflicting regarding their possible involvement in vascular disease. Antibodies against sclerostin and dickkopf-1 are currently being evaluated as potential therapy for treating bone disorders. It is important to carefully assess the cardiovascular and metabolic effects of these proteins. The aim of the present study was to explore serum levels of bone turnover markers in patients with acute noncardio-embolic ischemic stroke in comparison with healthy controls. Methods In a cross-sectional study, we compared 48 patients aged ≥75 years with noncardio-embolic ischemic stroke and 46 healthy controls. Serum levels of dickkopf-1, sclerostin, osteoprotegerin, osteopontin and osteocalcin were determined by Luminex technique. Results We found clearly increased serum levels of osteoprotegerin, sclerostin, dickkopf-1 and osteopontin in patients with stroke compared with healthy controls. No difference was seen in serum levels of osteocalcin between the two groups. Conclusion Our findings strengthen the hypothesis of bone turnover markers being involved in vascular disease. Whether these proteins can be used as candidate markers for increased stroke risk or prognostic biomarkers remains to be further elucidated.
Collapse
Affiliation(s)
- K. Mathold
- Department of Geriatric Medicine, County Hospital of Kalmar, Kalmar, Sweden
- * E-mail:
| | - P. Wanby
- Section of Endocrinology, Department of Internal Medicine, County Hospital of Kalmar, Kalmar, Sweden
| | - L. Brudin
- Department of Clinical Physiology, County Hospital of Kalmar, Kalmar, Sweden
| | - S. P. Von
- Department of Clinical Microbiology and Infectious Diseases, County Hospital of Kalmar, Kalmar, Sweden
| | - M. Carlsson
- Department of Clinical Chemistry, County Hospital of Kalmar, Kalmar, Sweden
- Department of Medicine and Optometry, Linnaeus University, Kalmar, Sweden
| |
Collapse
|
18
|
Abstract
In the lower solar atmosphere, the chromosphere is permeated by jets known as spicules, in which plasma is propelled at speeds of 50 to 150 kilometers per second into the corona. The origin of the spicules is poorly understood, although they are expected to play a role in heating the million-degree corona and are associated with Alfvénic waves that help drive the solar wind. We compare magnetohydrodynamic simulations of spicules with observations from the Interface Region Imaging Spectrograph and the Swedish 1-m Solar Telescope. Spicules are shown to occur when magnetic tension is amplified and transported upward through interactions between ions and neutrals or ambipolar diffusion. The tension is impulsively released to drive flows, heat plasma (through ambipolar diffusion), and generate Alfvénic waves.
Collapse
Affiliation(s)
- J Martínez-Sykora
- Bay Area Environmental Research Institute, Petaluma, CA 94952, USA. .,Lockheed Martin Solar and Astrophysics Laboratory (LMSAL), Palo Alto, CA 94304, USA
| | - B De Pontieu
- Lockheed Martin Solar and Astrophysics Laboratory (LMSAL), Palo Alto, CA 94304, USA.,Institute of Theoretical Astrophysics, University of Oslo, Post Office Box 1029, Blindern, N-0315 Oslo, Norway
| | - V H Hansteen
- Institute of Theoretical Astrophysics, University of Oslo, Post Office Box 1029, Blindern, N-0315 Oslo, Norway.,Lockheed Martin Solar and Astrophysics Laboratory (LMSAL), Palo Alto, CA 94304, USA
| | - L Rouppe van der Voort
- Institute of Theoretical Astrophysics, University of Oslo, Post Office Box 1029, Blindern, N-0315 Oslo, Norway
| | - M Carlsson
- Institute of Theoretical Astrophysics, University of Oslo, Post Office Box 1029, Blindern, N-0315 Oslo, Norway
| | - T M D Pereira
- Institute of Theoretical Astrophysics, University of Oslo, Post Office Box 1029, Blindern, N-0315 Oslo, Norway
| |
Collapse
|
19
|
Kopic S, Stephensen SS, Heiberg E, Arheden H, Bonhoeffer P, Ersbøll M, Vejlstrup N, Søndergaard L, Carlsson M. Isolated pulmonary regurgitation causes decreased right ventricular longitudinal function and compensatory increased septal pumping in a porcine model. Acta Physiol (Oxf) 2017; 221:163-173. [PMID: 28580611 PMCID: PMC5655773 DOI: 10.1111/apha.12904] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 05/16/2017] [Accepted: 05/31/2017] [Indexed: 01/18/2023]
Abstract
Aim Longitudinal ventricular contraction is a parameter of cardiac performance with predictive power. Right ventricular (RV) longitudinal function is impaired in patients with free pulmonary regurgitation (PR) following corrective surgery for Tetralogy of Fallot (TOF). It remains unclear whether this is a consequence of the surgical repair, or whether it is inherent to PR. The aim of this study was to assess the relationship between longitudinal, lateral and septal pumping in a porcine model of isolated PR. Methods Piglets were divided into a control (n = 8) group and a treatment (n = 12) group, which received a stent in the pulmonary valve orifice, inducing PR. After 2–3 months, animals were subjected to cardiac magnetic resonance imaging. A subset of animals (n = 6) then underwent percutaneous pulmonary valve replacement (PPVR) with follow‐up 1 month later. Longitudinal, lateral and septal contributions to stroke volume (SV) were quantified by measuring volumetric displacements from end‐diastole to end‐systole in the cardiac short axis and long axis. Results PR resulted in a lower longitudinal contribution to RV stroke volume, compared to controls (60.0 ± 2.6% vs. 73.6 ± 3.8%; P = 0.012). Furthermore, a compensatory increase in septal contribution to RVSV was observed (11.0 ± 1.6% vs. −3.1 ± 1.5%; P < 0.0001). The left ventricle (LV) showed counter‐regulation with an increased longitudinal LVSV. Changes in RV longitudinal function were reversed by PPVR. Conclusion These findings suggest that PR contributes to decreased RV longitudinal function in the absence of scarring from cardiac surgery. Measurement of longitudinal RVSV may aid risk stratification and timing for interventional correction of PR in TOF patients.
Collapse
Affiliation(s)
- S. Kopic
- Department of Clinical Sciences Lund; Clinical Physiology; Skåne University Hospital; Lund University; Lund Sweden
| | - S. S. Stephensen
- Department of Clinical Sciences Lund; Clinical Physiology; Skåne University Hospital; Lund University; Lund Sweden
| | - E. Heiberg
- Department of Clinical Sciences Lund; Clinical Physiology; Skåne University Hospital; Lund University; Lund Sweden
- Department of Biomedical Engineering; Faculty of Engineering; Lund University; Lund Sweden
| | - H. Arheden
- Department of Clinical Sciences Lund; Clinical Physiology; Skåne University Hospital; Lund University; Lund Sweden
| | | | - M. Ersbøll
- The Heart Centre; Rigshospitalet Copenhagen University Hospital; Copenhagen Denmark
| | - N. Vejlstrup
- The Heart Centre; Rigshospitalet Copenhagen University Hospital; Copenhagen Denmark
| | - L. Søndergaard
- The Heart Centre; Rigshospitalet Copenhagen University Hospital; Copenhagen Denmark
| | - M. Carlsson
- Department of Clinical Sciences Lund; Clinical Physiology; Skåne University Hospital; Lund University; Lund Sweden
| |
Collapse
|
20
|
Hommerstad A, Halvorsen S, Arheden H, Carlsson M, Engblom H, Jensen S, Erlinge D, Larsen A, Nordrehaug J, Fakhri Y, Sejersten M, Clemmensen P, Hallen J, Atar D, Hall T. P5346Worst lead residual ST-deviation 60 minutes after primary PCI for STEMI is associated with infarct size and myocardial salvage on cardiac magnetic resonance imaging. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p5346] [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
|
21
|
Arvidsson P, Toger J, Carlsson M, Pedrizzetti G, Borgquist R, Heiberg E, Arheden H. 3866Quantitative intraventricular hemodynamic forces: a sensitive and specific marker of left ventricular dyssynchrony. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.3866] [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
|
22
|
Goldstein I, Carlsson M, Stecher V. 170 Triad of Depression, Diabetes and CVD among Erectile Dysfunction Patients from DBPC Trials Beginning at Age 18 and Evaluating Change across 10 Year Intervals. J Sex Med 2017. [DOI: 10.1016/j.jsxm.2016.12.158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
23
|
Fernlund E, Gyllenhammar T, Jablonowski R, Carlsson M, Larsson A, Ärnlöv J, Liuba P. Serum Biomarkers of Myocardial Remodeling and Coronary Dysfunction in Early Stages of Hypertrophic Cardiomyopathy in the Young. Pediatr Cardiol 2017; 38:853-863. [PMID: 28361263 PMCID: PMC5388706 DOI: 10.1007/s00246-017-1593-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 02/21/2017] [Indexed: 12/21/2022]
Abstract
Hypertrophic cardiomyopathy (HCM) remains the leading cause of sudden cardiac death in the young. Early markers for HCM are important to identify individuals at risk. The aim of this study was to investigate novel serum biomarkers reflecting myocardial remodeling, microfibrosis, and vascular endotheliopathy in the early stages of familial HCM in young patients. Twenty-three HCM patients, 16 HCM-risk individuals, and 66 controls (median 15 years) underwent echocardiography and serum analysis for cathepsin S, endostatin, myostatin, type I collagen degradation marker (ICTP), matrix metalloproteinase (MMP)-9, vascular endothelial growth factor receptor (VEGFR)-1, and vascular and intercellular adhesion molecules (VCAM, ICAM). In a subset of the population, global myocardial perfusion was performed by magnetic resonance imaging. Cathepsin S (p = 0.0009), endostatin (p < 0.0001), MMP-9 (p = 0.008), and VCAM (p = 0.04) were increased in the HCM group and correlated to left ventricular mass index and mitral E/e' (p < 0.01). In the HCM-risk group, myostatin was decreased (p = 0.004), whereas ICAM was increased (p = 0.002). Global perfusion was decreased in the HCM group (p < 0.05) versus controls. Endostatin and mitral E/e' correlated inversely to myocardial perfusion (p ≤ 0.05). This is the first study demonstrating adverse changes in biomarkers reflecting myocardial matrix remodeling, microfibrosis, and vascular endotheliopathy in early stage of hypertrophic cardiomyopathy in the young.
Collapse
Affiliation(s)
- E. Fernlund
- Pediatric Heart Center, Skane University Hospital, Lund University, Lund, Sweden ,Department of Paediatrics, Linköping University Hospital, Linköping University, Linköping, Sweden
| | - T. Gyllenhammar
- Department of Clinical Sciences, Lund University Hospital, Lund University, Lund, Sweden
| | - R. Jablonowski
- Department of Clinical Sciences, Lund University Hospital, Lund University, Lund, Sweden
| | - M. Carlsson
- Department of Clinical Sciences, Lund University Hospital, Lund University, Lund, Sweden
| | - A. Larsson
- grid.8993.bDepartment of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - J. Ärnlöv
- grid.8993.bDepartment of Medical Sciences, Cardiovascular Epidemiology, Uppsala University, Uppsala, Sweden ,grid.4714.6Department of Neurobiology, Division of Family Medicine and Primary Care, Care Science and Society, Karolinska Institutet, Huddinge, Sweden
| | - P. Liuba
- Pediatric Heart Center, Skane University Hospital, Lund University, Lund, Sweden
| |
Collapse
|
24
|
Wanby P, Berglund J, Brudin L, Hedberg D, Carlsson M. Increased ferritin levels in patients with anorexia nervosa: impact of weight gain. Eat Weight Disord 2016; 21:411-417. [PMID: 26830429 DOI: 10.1007/s40519-015-0246-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 11/12/2015] [Indexed: 01/12/2023] Open
Abstract
PURPOSE A few recent studies have found elevated ferritin levels in patients with anorexia nervosa (AN), indicating ferritin as a potential biomarker of disease severity. The purpose of this study was to study how body mass index (BMI) and changes in BMI affect plasma ferritin concentrations in Swedish patients with eating disorders. MATERIALS AND METHODS In a retrospective computer search from 2009 to 2014, 662 patients with an eating disorder were identified from more than 200,000 individuals with electronic medical records. Three hundred and eighty-nine patients (374 females and 15 males) were found to have at least one p-ferritin value with a corresponding BMI value. Patients with AN were compared to a combined group consisting of patients with bulimia nervosa (BN) and patients with an eating disorder not otherwise specified (EDNOS). RESULTS Patients with AN had lower BMI compared to the combined group of patients with other eating disorders (BMI = 16.5 ± 1.5, n = 77 vs. 21.0 ± 4.7, n = 312, p < 0.001). Patients with AN also had higher plasma ferritin levels (median 42 μg/L (range 3.3-310) vs. 31 μg/L (range 2.8-280); p < 0.001). As BMI increased in patients with AN, ferritin levels decreased (from a median of 40 μg/L (7-400) to 26 (4-170), n = 47; p < 0.001). DISCUSSION Measuring ferritin in patients with AN could be valuable in monitoring improvements of nutritional status, but the full clinical value of following ferritin in individual patients has yet to be determined. The study also shows how research can benefit from electronically captured clinical data using electronic health records.
Collapse
Affiliation(s)
- P Wanby
- Department of Internal Medicine, Section of Endocrinology, County Hospital of Kalmar, 391 85, Kalmar, Sweden.
| | - J Berglund
- University Hospital of Linköping, Linköping, Sweden
| | - L Brudin
- Department of Clinical Physiology, County Hospital of Kalmar, Kalmar, Sweden
| | - D Hedberg
- Department of IT-Administration, County Council of Kalmar, Kalmar, Sweden
| | - M Carlsson
- Department of Clinical Chemistry, County Hospital of Sweden, Kalmar, Sweden
| |
Collapse
|
25
|
Wanby P, Nobin R, Von SP, Brudin L, Carlsson M. Serum levels of the bone turnover markers dickkopf-1, sclerostin, osteoprotegerin, osteopontin, osteocalcin and 25-hydroxyvitamin D in Swedish geriatric patients aged 75 years or older with a fresh hip fracture and in healthy controls. J Endocrinol Invest 2016; 39:855-63. [PMID: 26850415 DOI: 10.1007/s40618-015-0421-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 12/07/2015] [Indexed: 11/25/2022]
Abstract
BACKGROUND Bone turnover markers have a potential clinical use in describing bone remodeling and in predicting fractures. AIMS In an elderly population ≥75 years with a fresh hip fracture, and in healthy controls, investigate bone turnover markers and their relation to each other, to vitamin D status and to bone mineral density (BMD). METHODS In a cross-sectional study serum levels of dickkopf-1 (DKK-1), sclerostin (SOST), osteoprotegerin (OPG), osteopontin (OPN), osteocalcin, 25-hydroxyvitamin D (25(OH)D) were analyzed in 89 Swedish patients with a fresh hip fracture and in 82 healthy volunteers. Serum levels of bone markers were determined by Luminex technique. RESULTS S-25-hydroxyvitamin D (S-25(OH)D) was decreased in patients compared to controls (48 ± 21 vs. 76 ± 25 nmol/L, p < 0.001). SOST, but none of the other bone turnover markers correlated with BMD (r = 0.50, p < 0.001). Compared with controls, higher levels of OPG (488 ± 1.4 vs. 191 ± 1.4 ng/L, p < 0.001), OPN (69 ± 1.7 vs. 19 ± 1.4 µg/L, p < 0.001), DKK-1 (273 ± 1.7 vs. 168 ± 1.7 ng/L, p < 0.001), and lower levels of osteocalcin (5.8 ± 3.5 vs. 9.5 ± 3.6 µg/L, p < 0.001), were found in the fracture group. Levels of OPG, DKK-1 and SOST in both groups were positively associated. S-25(OH)D concentration was not found to be strongly associated with any of the bone markers. CONCLUSIONS In contrast to findings in other studies, we found no strong correlation between 25(OH)D and the investigated bone markers. Both in patients with a fresh hip fracture and in healthy elderly, DKK-1, SOST and OPG appear to be associated. This suggests a relevance in these relationships meriting further investigation.
Collapse
Affiliation(s)
- P Wanby
- Section of Endocrinology, Department of Internal Medicine, County Hospital of Kalmar, 391 85, Kalmar, Sweden.
| | - R Nobin
- Department of Orthopedics, County Hospital of Kalmar, Kalmar, Sweden
| | - S-P Von
- Department of Clinical Chemistry, County Hospital of Kalmar, Kalmar, Sweden
| | - L Brudin
- Department of Clinical Physiology, County Hospital of Kalmar, Kalmar, Sweden
| | - M Carlsson
- Department of Clinical Chemistry, County Hospital of Kalmar, Kalmar, Sweden
| |
Collapse
|
26
|
Steidley D, Schumacher J, Carlsson M, Ong ML, Maurer M. Myocardial Contraction Fraction: A Volumetric Index for Predicting Mortality in Transthyretin Cardiomyopathy. J Card Fail 2016. [DOI: 10.1016/j.cardfail.2016.06.144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
27
|
Mihalca AD, Fictum P, Skoric M, Sloboda M, Kärvemo S, Ghira I, Carlsson M, Modry D. Severe Granulomatous Lesions in Several Organs from Eustrongylides Larvae in a Free-ranging Dice Snake, Natrix tessellata. Vet Pathol 2016; 44:103-5. [PMID: 17197633 DOI: 10.1354/vp.44-1-103] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
During an extensive study regarding the epidemiology of larval Eustrongylides infestation in a free-ranging endangered population of dice snakes ( Natrix tessellata) from Histria, Romania, an adult female was euthanized to evaluate pathologic changes. Parasites appeared as nodules at various locations: in subcutaneous connective tissues, on the serosae of the intestines and liver. Histologic sections revealed nematode larvae surrounded by a capsule, forming a parasitic granuloma with 3 layers: macrophage layer, lymphocyte layer, and fibrous capsule. Differences between newly formed and mature granulomas consisted mainly in the eosinophilic infiltration. Other types of parasitic granulomas of reptiles are discussed in comparison with our findings.
Collapse
Affiliation(s)
- A D Mihalca
- Faculty of Veterinary Medicine, Department of Parasitology and Parasitic Diseases, Calea Manastur 3-5, Cluj-Napoca, Romania.
| | | | | | | | | | | | | | | |
Collapse
|
28
|
Steding-Ehrenborg K, Arvidsson PM, Töger J, Rydberg M, Heiberg E, Carlsson M, Arheden H. Determinants of kinetic energy of blood flow in the four-chambered heart in athletes and sedentary controls. Am J Physiol Heart Circ Physiol 2016; 310:H113-22. [DOI: 10.1152/ajpheart.00544.2015] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 10/19/2015] [Indexed: 11/22/2022]
Abstract
The kinetic energy (KE) of intracardiac blood may play an important role in cardiac function. The aims of the present study were to 1) quantify and investigate the determinants of KE, 2) compare the KE expenditure of intracardiac blood between athletes and control subjects, and 3) quantify the amount of KE inside and outside the diastolic vortex. Fourteen athletes and fourteen volunteers underwent cardiac MRI, including four-dimensional phase-contrast sequences. KE was quantified in four chambers, and energy expenditure was calculated by determining the mean KE/cardiac index. Left ventricular (LV) mass was an independent predictor of diastolic LVKE ( R2= 0.66, P < 0.001), whereas right ventricular (RV) end-diastolic volume was important for diastolic RVKE ( R2= 0.76, P < 0.001). The mean KE/cardiac index did not differ between groups (control subjects: 0.53 ± 0.14 mJ·l−1·min·m2and athletes: 0.56 ± 0.21 mJ·l−1·min·m2, P = 0.98). Mean LV diastolic vortex KE made up 70 ± 1% and 73 ± 2% of total LV diastolic KE in athletes and control subjects ( P = 0.18). In conclusion, the characteristics of the LV as a pressure pump and the RV as a volume pump are demonstrated as an association between LVKE and LV mass and between RVKE and end-diastolic volume. This also suggests different filling mechanisms where the LV is dependent on diastolic suction, whereas the RV fills with a basal movement of the atrioventricular plane over “stationary” blood. Both groups had similar energy expenditure for intracardiac blood flow, indicating similar pumping efficiency, likely explained by the lower heart rate that cancels the higher KE per heart beat in athletes. The majority of LVKE is found within the LV diastolic vortex, in contrast to earlier findings.
Collapse
Affiliation(s)
- K. Steding-Ehrenborg
- Department of Clinical Physiology, Lund University, Lund University Hospital Lund, Lund, Sweden
| | - P. M. Arvidsson
- Department of Clinical Physiology, Lund University, Lund University Hospital Lund, Lund, Sweden
| | - J. Töger
- Department of Clinical Physiology, Lund University, Lund University Hospital Lund, Lund, Sweden
| | - M. Rydberg
- Department of Clinical Physiology, Lund University, Lund University Hospital Lund, Lund, Sweden
| | - E. Heiberg
- Department of Clinical Physiology, Lund University, Lund University Hospital Lund, Lund, Sweden
| | - M. Carlsson
- Department of Clinical Physiology, Lund University, Lund University Hospital Lund, Lund, Sweden
| | - H. Arheden
- Department of Clinical Physiology, Lund University, Lund University Hospital Lund, Lund, Sweden
| |
Collapse
|
29
|
Hofstra LM, Sauvageot N, Albert J, Alexiev I, Garcia F, Struck D, Van de Vijver DAMC, Åsjö B, Beshkov D, Coughlan S, Descamps D, Griskevicius A, Hamouda O, Horban A, Van Kasteren M, Kolupajeva T, Kostrikis LG, Liitsola K, Linka M, Mor O, Nielsen C, Otelea D, Paraskevis D, Paredes R, Poljak M, Puchhammer-Stöckl E, Sönnerborg A, Staneková D, Stanojevic M, Van Laethem K, Zazzi M, Zidovec Lepej S, Boucher CAB, Schmit JC, Wensing AMJ, Puchhammer-Stockl E, Sarcletti M, Schmied B, Geit M, Balluch G, Vandamme AM, Vercauteren J, Derdelinckx I, Sasse A, Bogaert M, Ceunen H, De Roo A, De Wit S, Echahidi F, Fransen K, Goffard JC, Goubau P, Goudeseune E, Yombi JC, Lacor P, Liesnard C, Moutschen M, Pierard D, Rens R, Schrooten Y, Vaira D, Vandekerckhove LPR, Van den Heuvel A, Van Der Gucht B, Van Ranst M, Van Wijngaerden E, Vandercam B, Vekemans M, Verhofstede C, Clumeck N, Van Laethem K, Beshkov D, Alexiev I, Lepej SZ, Begovac J, Kostrikis L, Demetriades I, Kousiappa I, Demetriou V, Hezka J, Linka M, Maly M, Machala L, Nielsen C, Jørgensen LB, Gerstoft J, Mathiesen L, Pedersen C, Nielsen H, Laursen A, Kvinesdal B, Liitsola K, Ristola M, Suni J, Sutinen J, Descamps D, Assoumou L, Castor G, Grude M, Flandre P, Storto A, Hamouda O, Kücherer C, Berg T, Braun P, Poggensee G, Däumer M, Eberle J, Heiken H, Kaiser R, Knechten H, Korn K, Müller H, Neifer S, Schmidt B, Walter H, Gunsenheimer-Bartmeyer B, Harrer T, Paraskevis D, Hatzakis A, Zavitsanou A, Vassilakis A, Lazanas M, Chini M, Lioni A, Sakka V, Kourkounti S, Paparizos V, Antoniadou A, Papadopoulos A, Poulakou G, Katsarolis I, Protopapas K, Chryssos G, Drimis S, Gargalianos P, Xylomenos G, Lourida G, Psichogiou M, Daikos GL, Sipsas NV, Kontos A, Gamaletsou MN, Koratzanis G, Sambatakou H, Mariolis H, Skoutelis A, Papastamopoulos V, Georgiou O, Panagopoulos P, Maltezos E, Coughlan S, De Gascun C, Byrne C, Duffy M, Bergin C, Reidy D, Farrell G, Lambert J, O'Connor E, Rochford A, Low J, Coakely P, O'Dea S, Hall W, Mor O, Levi I, Chemtob D, Grossman Z, Zazzi M, de Luca A, Balotta C, Riva C, Mussini C, Caramma I, Capetti A, Colombo MC, Rossi C, Prati F, Tramuto F, Vitale F, Ciccozzi M, Angarano G, Rezza G, Kolupajeva T, Vasins O, Griskevicius A, Lipnickiene V, Schmit JC, Struck D, Sauvageot N, Hemmer R, Arendt V, Michaux C, Staub T, Sequin-Devaux C, Wensing AMJ, Boucher CAB, van de Vijver DAMC, van Kessel A, van Bentum PHM, Brinkman K, Connell BJ, van der Ende ME, Hoepelman IM, van Kasteren M, Kuipers M, Langebeek N, Richter C, Santegoets RMWJ, Schrijnders-Gudde L, Schuurman R, van de Ven BJM, Åsjö B, Kran AMB, Ormaasen V, Aavitsland P, Horban A, Stanczak JJ, Stanczak GP, Firlag-Burkacka E, Wiercinska-Drapalo A, Jablonowska E, Maolepsza E, Leszczyszyn-Pynka M, Szata W, Camacho R, Palma C, Borges F, Paixão T, Duque V, Araújo F, Otelea D, Paraschiv S, Tudor AM, Cernat R, Chiriac C, Dumitrescu F, Prisecariu LJ, Stanojevic M, Jevtovic D, Salemovic D, Stanekova D, Habekova M, Chabadová Z, Drobkova T, Bukovinova P, Shunnar A, Truska P, Poljak M, Lunar M, Babic D, Tomazic J, Vidmar L, Vovko T, Karner P, Garcia F, Paredes R, Monge S, Moreno S, Del Amo J, Asensi V, Sirvent JL, de Mendoza C, Delgado R, Gutiérrez F, Berenguer J, Garcia-Bujalance S, Stella N, de Los Santos I, Blanco JR, Dalmau D, Rivero M, Segura F, Elías MJP, Alvarez M, Chueca N, Rodríguez-Martín C, Vidal C, Palomares JC, Viciana I, Viciana P, Cordoba J, Aguilera A, Domingo P, Galindo MJ, Miralles C, Del Pozo MA, Ribera E, Iribarren JA, Ruiz L, de la Torre J, Vidal F, Clotet B, Albert J, Heidarian A, Aperia-Peipke K, Axelsson M, Mild M, Karlsson A, Sönnerborg A, Thalme A, Navér L, Bratt G, Karlsson A, Blaxhult A, Gisslén M, Svennerholm B, Bergbrant I, Björkman P, Säll C, Mellgren Å, Lindholm A, Kuylenstierna N, Montelius R, Azimi F, Johansson B, Carlsson M, Johansson E, Ljungberg B, Ekvall H, Strand A, Mäkitalo S, Öberg S, Holmblad P, Höfer M, Holmberg H, Josefson P, Ryding U. Transmission of HIV Drug Resistance and the Predicted Effect on Current First-line Regimens in Europe. Clin Infect Dis 2015; 62:655-663. [PMID: 26620652 PMCID: PMC4741360 DOI: 10.1093/cid/civ963] [Citation(s) in RCA: 118] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Accepted: 11/06/2015] [Indexed: 11/13/2022] Open
Abstract
Transmitted human immunodeficiency virus drug resistance in Europe is stable at around 8%. The impact of baseline mutation patterns on susceptibility to antiretroviral drugs should be addressed using clinical guidelines. The impact on baseline susceptibility is largest for nonnucleoside reverse transcriptase inhibitors. Background. Numerous studies have shown that baseline drug resistance patterns may influence the outcome of antiretroviral therapy. Therefore, guidelines recommend drug resistance testing to guide the choice of initial regimen. In addition to optimizing individual patient management, these baseline resistance data enable transmitted drug resistance (TDR) to be surveyed for public health purposes. The SPREAD program systematically collects data to gain insight into TDR occurring in Europe since 2001. Methods. Demographic, clinical, and virological data from 4140 antiretroviral-naive human immunodeficiency virus (HIV)–infected individuals from 26 countries who were newly diagnosed between 2008 and 2010 were analyzed. Evidence of TDR was defined using the WHO list for surveillance of drug resistance mutations. Prevalence of TDR was assessed over time by comparing the results to SPREAD data from 2002 to 2007. Baseline susceptibility to antiretroviral drugs was predicted using the Stanford HIVdb program version 7.0. Results. The overall prevalence of TDR did not change significantly over time and was 8.3% (95% confidence interval, 7.2%–9.5%) in 2008–2010. The most frequent indicators of TDR were nucleoside reverse transcriptase inhibitor (NRTI) mutations (4.5%), followed by nonnucleoside reverse transcriptase inhibitor (NNRTI) mutations (2.9%) and protease inhibitor mutations (2.0%). Baseline mutations were most predictive of reduced susceptibility to initial NNRTI-based regimens: 4.5% and 6.5% of patient isolates were predicted to have resistance to regimens containing efavirenz or rilpivirine, respectively, independent of current NRTI backbones. Conclusions. Although TDR was highest for NRTIs, the impact of baseline drug resistance patterns on susceptibility was largest for NNRTIs. The prevalence of TDR assessed by epidemiological surveys does not clearly indicate to what degree susceptibility to different drug classes is affected.
Collapse
Affiliation(s)
- L Marije Hofstra
- Luxembourg Institute of Health, Luxembourg.,Department of Virology, University Medical Center Utrecht, The Netherlands
| | | | - Jan Albert
- Karolinska Institute, Solna.,Karolinska University Hospital, Stockholm, Sweden
| | - Ivailo Alexiev
- National Center of Infectious and Parasitic Diseases, Sofia, Bulgaria
| | - Federico Garcia
- Complejo Hospitalario Universitario de Granada, Instituto de Investigación IBS Granada; on behalf of Cohorte de Adultos de la Red de Investigación en SIDA, Spain
| | | | | | | | - Danail Beshkov
- National Center of Infectious and Parasitic Diseases, Sofia, Bulgaria
| | | | - Diane Descamps
- AP-HP Groupe hospitalier Bichat-Claude Bernard, IAME INSERM UMR 1137, Université Paris Diderot Sorbonne Paris Cité, Paris, France
| | | | | | | | | | | | | | - Kirsi Liitsola
- Department of Infectious Diseases, National Institute for Health and Welfare, Helsinki, Finland
| | - Marek Linka
- National Reference Laboratory for HIV/AIDS, National Institute of Public Health, Prague, Czech Republic
| | - Orna Mor
- National HIV Reference Laboratory, Chaim Sheba Medical Center, Tel-Hashomer, Israel
| | | | - Dan Otelea
- National Institute for Infectious Diseases "Prof. dr. Matei Bals", Bucharest, Romania
| | | | | | - Mario Poljak
- Faculty of Medicine, Slovenian HIV/AIDS Reference Centre, University of Ljubljana, Slovenia
| | | | - Anders Sönnerborg
- Karolinska Institute, Solna.,Karolinska University Hospital, Stockholm, Sweden
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
30
|
|
31
|
Ohl D, Carlsson M, Stecher V, Rippon G. Efficacy and safety of sildenafil in men with erectile dysfunction (ED) and spinal cord injury (SCI). Fertil Steril 2015. [DOI: 10.1016/j.fertnstert.2015.07.204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
32
|
Carlsson M, Thorell L, Sjölander A, Larsson-Faria S. Variability of total and free IgE levels and IgE receptor expression in allergic subjects in and out of pollen season. Scand J Immunol 2015; 81:240-8. [PMID: 25620574 DOI: 10.1111/sji.12270] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Accepted: 01/03/2015] [Indexed: 11/26/2022]
Abstract
The inter- and intra-individual variability and seasonal variation of IgE, and high (FcεRI)- and low-affinity (CD23) IgE receptor expression in blood of seasonal allergic rhinitis (SAR) subjects, is not well studied. Thirty-two otherwise healthy subjects with a history of SAR to birch pollen and a positive skin prick test to birch pollen were sampled three times out of the pollen season and three times during the pollen season. FcεRI and CD23 expressions were analysed using flow cytometry. Total IgE was analysed using ImmunoCAP(®) and free IgE was analysed with a novel customised research assay using an IgG-FcεRI-chimera protein coupled to ImmunoCAP as capture reagent, ImmunoCAP-specific IgE conjugate and ImmunoCAP IgE calibrators. The performance of the free IgE assay was compared well with the reference ImmunoCAP total IgE assay. The working range of the assay was 0.35-200 kU/l IgE. FcεRI expression on basophils and CD23 expression on B cells showed low intrasubject variability both in and out of the pollen season (<10% CV). There was a small seasonal difference with lower total IgE levels (120 versus 128 kU/l; P = 0.004) and FcεRI expression (283 versus 325 mean fluorescence intensity (MFI); P < 0.001) during the pollen season. IgE, FcεRI expression and CD23 expression fulfilled biomarker and assay requirements of variability, and allergen exposure affected the biomarkers only to a minor degree. The free IgE assay may be used for measurement of free IgE levels in patients after anti-IgE antibody treatment.
Collapse
Affiliation(s)
- M Carlsson
- AstraZeneca R&D Mölndal, Mölndal, Sweden
| | | | | | | |
Collapse
|
33
|
Burman M, Säätelä S, Carlsson M, Olofsson B, Gustafson Y, Hörnsten C. Body mass index, Mini Nutritional Assessment, and their association with five-year mortality in very old people. J Nutr Health Aging 2015; 19:461-7. [PMID: 25809811 DOI: 10.1007/s12603-015-0443-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES to investigate the prevalence of malnutrition and the association between Body Mass Index (BMI), Mini Nutritional Assessment (MNA) and five-year mortality in a representative population of very old (>85 years) people. DESIGN A prospective cohort study. SETTING A population-based study of very old people in northern Sweden and western Finland, living in institutional care or in the community. PARTICIPANTS Out of 1195 potential participants, 832 were included (mean age 90.2±4.6 years). MEASUREMENTS Nutritional status was assessed using BMI and MNA and the association of those two variables with five-year mortality was analyzed. RESULTS The mean BMI value for the whole population was 25.1±4.5 kg/m2, with no difference between genders (P=0.938). The mean MNA score was 22.5±4.6 for the whole sample, and it was lower for women than for men (P<0.001). Thirteen percent were malnourished (MNA<17) and 40.3% at risk of malnutrition (MNA 17-23.5) according to MNA. Also, 34.8% of those with a MNA score <17 still had a BMI value ≥22.2 kg/m2. A BMI value <22.2 kg/m2 and a MNA score<17 were associated with lower survival. The association with mortality seemed to be J-shaped for BMI, and linear for MNA. CONCLUSIONS Malnutrition according to MNA was common, but a substantial portion of those with a low MNA score still had a high BMI value, and vice versa. The association with mortality appeared to be J-shaped for BMI, and linear for MNA. The MNA seems to be a good measurement of malnutrition in very old people, and BMI might be misleading and could underestimate the prevalence of malnutrition, especially in women.
Collapse
Affiliation(s)
- M Burman
- M. Burman, Geriatric Medicine, Department of Community Medicine and Rehabilitation, Umea Universitet, Umea, Sweden SE-90187,
| | | | | | | | | | | |
Collapse
|
34
|
Sadiya A, Ahmed SM, Carlsson M, Tesfa Y, George M, Ali SH, Siddieg HH, Abusnana S. Vitamin D supplementation in obese type 2 diabetes subjects in Ajman, UAE: a randomized controlled double-blinded clinical trial. Eur J Clin Nutr 2014; 69:707-11. [PMID: 25406966 PMCID: PMC4458894 DOI: 10.1038/ejcn.2014.251] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [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: 05/26/2014] [Revised: 09/16/2014] [Accepted: 09/22/2014] [Indexed: 11/09/2022]
Abstract
OBJECTIVES To study the effect of Vitamin D3 supplementation on metabolic control in an obese type 2 diabetes Emirati population. METHODS This randomized double-blind clinical trial was conducted with 87 vitamin D-deficient obese, type 2 diabetic participants. The vitamin D-group (n=45) and the placebo group (n=42) were matched for gender, age, HbA1c and 25-hydroxy vitamin D (25(OH) D) at the baseline. The study was divided into two phases of 3 months each; in phase 1, the vitamin D-group received 6000 IU vitamin D3/day followed by 3000 IU vitamin D3/day in phase 2, whereas the placebo group (n=42) received matching placebo. RESULTS After supplementation, serum 25(OH) D peaked in the vitamin D-group in phase 1 (77.2±30.1 nmol/l, P=0.003) followed by a decrease in the phase 2 (61.4±18.8 nmol/l, P=0.006), although this was higher compared with baseline. In the placebo group, no difference was observed in the serum 25(OH) D levels throughout the intervention. Relative to baseline serum, parathyroid hormone decreased 24% (P=0.003) in the vitamin D-group in phase 2, but remained unchanged in the placebo group. No significant changes were observed in blood pressure, fasting blood glucose, HbA1c, C-peptide, creatinine, phosphorous, alkaline phosphatase, lipids, C-reactive protein or thyroid stimulating hormone concentrations compared with baseline in either group. CONCLUSIONS Six months of vitamin D3 supplementation to vitamin D-deficient obese type 2 diabetes patients in the UAE normalized the vitamin D status and reduced the incidence of eucalcemic parathyroid hormone elevation but showed no effect on the metabolic control.
Collapse
Affiliation(s)
- A Sadiya
- Rashid Center for Diabetes and Research, Ajman, UAE
| | - S M Ahmed
- Rashid Center for Diabetes and Research, Ajman, UAE
| | | | - Y Tesfa
- Rashid Center for Diabetes and Research, Ajman, UAE
| | - M George
- Rashid Center for Diabetes and Research, Ajman, UAE
| | - S H Ali
- Rashid Center for Diabetes and Research, Ajman, UAE
| | - H H Siddieg
- Rashid Center for Diabetes and Research, Ajman, UAE
| | - S Abusnana
- Rashid Center for Diabetes and Research, Ajman, UAE
| |
Collapse
|
35
|
Tian H, DeLuca EE, Cranmer SR, De Pontieu B, Peter H, Martínez-Sykora J, Golub L, McKillop S, Reeves KK, Miralles MP, McCauley P, Saar S, Testa P, Weber M, Murphy N, Lemen J, Title A, Boerner P, Hurlburt N, Tarbell TD, Wuelser JP, Kleint L, Kankelborg C, Jaeggli S, Carlsson M, Hansteen V, McIntosh SW. Prevalence of small-scale jets from the networks of the solar transition region and chromosphere. Science 2014; 346:1255711. [PMID: 25324395 DOI: 10.1126/science.1255711] [Citation(s) in RCA: 196] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
As the interface between the Sun's photosphere and corona, the chromosphere and transition region play a key role in the formation and acceleration of the solar wind. Observations from the Interface Region Imaging Spectrograph reveal the prevalence of intermittent small-scale jets with speeds of 80 to 250 kilometers per second from the narrow bright network lanes of this interface region. These jets have lifetimes of 20 to 80 seconds and widths of ≤300 kilometers. They originate from small-scale bright regions, often preceded by footpoint brightenings and accompanied by transverse waves with amplitudes of ~20 kilometers per second. Many jets reach temperatures of at least ~10(5) kelvin and constitute an important element of the transition region structures. They are likely an intermittent but persistent source of mass and energy for the solar wind.
Collapse
Affiliation(s)
- H Tian
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA.
| | - E E DeLuca
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - S R Cranmer
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - B De Pontieu
- Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Organization A021S, Building 252, Palo Alto, CA 94304, USA
| | - H Peter
- Max Planck Institute for Solar System Research, Justus-von-Liebig-Weg 3, 37077 Göttingen, Germany
| | - J Martínez-Sykora
- Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Organization A021S, Building 252, Palo Alto, CA 94304, USA. Bay Area Environmental Research Institute, 596 1st Street West, Sonoma, CA 95476, USA
| | - L Golub
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - S McKillop
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - K K Reeves
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - M P Miralles
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - P McCauley
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - S Saar
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - P Testa
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - M Weber
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - N Murphy
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - J Lemen
- Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Organization A021S, Building 252, Palo Alto, CA 94304, USA
| | - A Title
- Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Organization A021S, Building 252, Palo Alto, CA 94304, USA
| | - P Boerner
- Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Organization A021S, Building 252, Palo Alto, CA 94304, USA
| | - N Hurlburt
- Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Organization A021S, Building 252, Palo Alto, CA 94304, USA
| | - T D Tarbell
- Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Organization A021S, Building 252, Palo Alto, CA 94304, USA
| | - J P Wuelser
- Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Organization A021S, Building 252, Palo Alto, CA 94304, USA
| | - L Kleint
- Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Organization A021S, Building 252, Palo Alto, CA 94304, USA. Bay Area Environmental Research Institute, 596 1st Street West, Sonoma, CA 95476, USA
| | - C Kankelborg
- Department of Physics, Montana State University, Post Office Box 173840, Bozeman, MT 59717, USA
| | - S Jaeggli
- Department of Physics, Montana State University, Post Office Box 173840, Bozeman, MT 59717, USA
| | - M Carlsson
- Institute of Theoretical Astrophysics, University of Oslo, Post Office Box 1029, Blindern, 0315 Oslo, Norway
| | - V Hansteen
- Institute of Theoretical Astrophysics, University of Oslo, Post Office Box 1029, Blindern, 0315 Oslo, Norway
| | - S W McIntosh
- High Altitude Observatory, National Center for Atmospheric Research, Post Office Box 3000, Boulder, CO 80307, USA
| |
Collapse
|
36
|
Testa P, De Pontieu B, Allred J, Carlsson M, Reale F, Daw A, Hansteen V, Martinez-Sykora J, Liu W, DeLuca EE, Golub L, McKillop S, Reeves K, Saar S, Tian H, Lemen J, Title A, Boerner P, Hurlburt N, Tarbell TD, Wuelser JP, Kleint L, Kankelborg C, Jaeggli S. Evidence of nonthermal particles in coronal loops heated impulsively by nanoflares. Science 2014; 346:1255724. [PMID: 25324396 DOI: 10.1126/science.1255724] [Citation(s) in RCA: 126] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The physical processes causing energy exchange between the Sun's hot corona and its cool lower atmosphere remain poorly understood. The chromosphere and transition region (TR) form an interface region between the surface and the corona that is highly sensitive to the coronal heating mechanism. High-resolution observations with the Interface Region Imaging Spectrograph (IRIS) reveal rapid variability (~20 to 60 seconds) of intensity and velocity on small spatial scales (≲500 kilometers) at the footpoints of hot and dynamic coronal loops. The observations are consistent with numerical simulations of heating by beams of nonthermal electrons, which are generated in small impulsive (≲30 seconds) heating events called "coronal nanoflares." The accelerated electrons deposit a sizable fraction of their energy (≲10(25) erg) in the chromosphere and TR. Our analysis provides tight constraints on the properties of such electron beams and new diagnostics for their presence in the nonflaring corona.
Collapse
Affiliation(s)
- P Testa
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA.
| | - B De Pontieu
- Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Org. A021S, Building 252, Palo Alto, CA 94304, USA. Institute of Theoretical Astrophysics, University of Oslo, Post Office Box 1029, Blindern, N-0315, Oslo, Norway
| | - J Allred
- NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA
| | - M Carlsson
- Institute of Theoretical Astrophysics, University of Oslo, Post Office Box 1029, Blindern, N-0315, Oslo, Norway
| | - F Reale
- Dipartimento di Fisica e Chimica, Universita' di Palermo and Istituto Nazionale di Astrofisica (INAF)/Osservatorio Astronomico di Palermo, Piazza del Parlamento 1, 90134 Palermo, Italy
| | - A Daw
- NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA
| | - V Hansteen
- Institute of Theoretical Astrophysics, University of Oslo, Post Office Box 1029, Blindern, N-0315, Oslo, Norway
| | - J Martinez-Sykora
- Bay Area Environmental Research Institute 596 1st Street West, Sonoma, CA 95476, USA
| | - W Liu
- Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Org. A021S, Building 252, Palo Alto, CA 94304, USA. W. W. Hansen Experimental Physics Laboratory, Stanford University, Stanford, CA 94305, USA
| | - E E DeLuca
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - L Golub
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - S McKillop
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - K Reeves
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - S Saar
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - H Tian
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - J Lemen
- Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Org. A021S, Building 252, Palo Alto, CA 94304, USA
| | - A Title
- Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Org. A021S, Building 252, Palo Alto, CA 94304, USA
| | - P Boerner
- Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Org. A021S, Building 252, Palo Alto, CA 94304, USA
| | - N Hurlburt
- Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Org. A021S, Building 252, Palo Alto, CA 94304, USA
| | - T D Tarbell
- Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Org. A021S, Building 252, Palo Alto, CA 94304, USA
| | - J P Wuelser
- Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Org. A021S, Building 252, Palo Alto, CA 94304, USA
| | - L Kleint
- Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Org. A021S, Building 252, Palo Alto, CA 94304, USA. Bay Area Environmental Research Institute 596 1st Street West, Sonoma, CA 95476, USA
| | - C Kankelborg
- Department of Physics, Montana State University, Bozeman, Post Office Box 173840, Bozeman, MT 59717, USA
| | - S Jaeggli
- Department of Physics, Montana State University, Bozeman, Post Office Box 173840, Bozeman, MT 59717, USA
| |
Collapse
|
37
|
Hansteen V, De Pontieu B, Carlsson M, Lemen J, Title A, Boerner P, Hurlburt N, Tarbell TD, Wuelser JP, Pereira TMD, De Luca EE, Golub L, McKillop S, Reeves K, Saar S, Testa P, Tian H, Kankelborg C, Jaeggli S, Kleint L, Martínez-Sykora J. The unresolved fine structure resolved: IRIS observations of the solar transition region. Science 2014; 346:1255757. [PMID: 25324399 DOI: 10.1126/science.1255757] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The heating of the outer solar atmospheric layers, i.e., the transition region and corona, to high temperatures is a long-standing problem in solar (and stellar) physics. Solutions have been hampered by an incomplete understanding of the magnetically controlled structure of these regions. The high spatial and temporal resolution observations with the Interface Region Imaging Spectrograph (IRIS) at the solar limb reveal a plethora of short, low-lying loops or loop segments at transition-region temperatures that vary rapidly, on the time scales of minutes. We argue that the existence of these loops solves a long-standing observational mystery. At the same time, based on comparison with numerical models, this detection sheds light on a critical piece of the coronal heating puzzle.
Collapse
Affiliation(s)
- V Hansteen
- Institute of Theoretical Astrophysics, University of Oslo, Post Office Box 1029, Blindern, NO-0315, Oslo, Norway.
| | - B De Pontieu
- Institute of Theoretical Astrophysics, University of Oslo, Post Office Box 1029, Blindern, NO-0315, Oslo, Norway. Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Org. A021S, Building 252, Palo Alto, CA 94304, USA
| | - M Carlsson
- Institute of Theoretical Astrophysics, University of Oslo, Post Office Box 1029, Blindern, NO-0315, Oslo, Norway
| | - J Lemen
- Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Org. A021S, Building 252, Palo Alto, CA 94304, USA
| | - A Title
- Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Org. A021S, Building 252, Palo Alto, CA 94304, USA
| | - P Boerner
- Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Org. A021S, Building 252, Palo Alto, CA 94304, USA
| | - N Hurlburt
- Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Org. A021S, Building 252, Palo Alto, CA 94304, USA
| | - T D Tarbell
- Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Org. A021S, Building 252, Palo Alto, CA 94304, USA
| | - J P Wuelser
- Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Org. A021S, Building 252, Palo Alto, CA 94304, USA
| | - T M D Pereira
- Institute of Theoretical Astrophysics, University of Oslo, Post Office Box 1029, Blindern, NO-0315, Oslo, Norway
| | - E E De Luca
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - L Golub
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - S McKillop
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - K Reeves
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - S Saar
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - P Testa
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - H Tian
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - C Kankelborg
- Department of Physics, Montana State University, Bozeman, Post Office Box 173840, Bozeman, MT 59717, USA
| | - S Jaeggli
- Department of Physics, Montana State University, Bozeman, Post Office Box 173840, Bozeman, MT 59717, USA
| | - L Kleint
- Bay Area Environmental Research Institute, 596 1st Street West, Sonoma, CA 95476, USA. Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Org. A021S, Building 252, Palo Alto, CA 94304, USA
| | - J Martínez-Sykora
- Bay Area Environmental Research Institute, 596 1st Street West, Sonoma, CA 95476, USA. Lockheed Martin Solar and Astrophysics Laboratory, 3251 Hanover Street, Org. A021S, Building 252, Palo Alto, CA 94304, USA
| |
Collapse
|
38
|
De Pontieu B, van der Voort LR, McIntosh SW, Pereira TMD, Carlsson M, Hansteen V, Skogsrud H, Lemen J, Title A, Boerner P, Hurlburt N, Tarbell TD, Wuelser JP, De Luca EE, Golub L, McKillop S, Reeves K, Saar S, Testa P, Tian H, Kankelborg C, Jaeggli S, Kleint L, Martinez-Sykora J. On the prevalence of small-scale twist in the solar chromosphere and transition region. Science 2014; 346:1255732. [PMID: 25324398 DOI: 10.1126/science.1255732] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The solar chromosphere and transition region (TR) form an interface between the Sun's surface and its hot outer atmosphere. There, most of the nonthermal energy that powers the solar atmosphere is transformed into heat, although the detailed mechanism remains elusive. High-resolution (0.33-arc second) observations with NASA's Interface Region Imaging Spectrograph (IRIS) reveal a chromosphere and TR that are replete with twist or torsional motions on sub-arc second scales, occurring in active regions, quiet Sun regions, and coronal holes alike. We coordinated observations with the Swedish 1-meter Solar Telescope (SST) to quantify these twisting motions and their association with rapid heating to at least TR temperatures. This view of the interface region provides insight into what heats the low solar atmosphere.
Collapse
Affiliation(s)
- B De Pontieu
- Lockheed Martin Solar and Astrophysics Laboratory (LMSAL), 3251 Hanover Street, Organization A021S, Building 252, Palo Alto, CA 94304, USA. Institute of Theoretical Astrophysics, University of Oslo, Post Office Box 1029, Blindern, N-0315 Oslo, Norway.
| | - L Rouppe van der Voort
- Institute of Theoretical Astrophysics, University of Oslo, Post Office Box 1029, Blindern, N-0315 Oslo, Norway
| | - S W McIntosh
- High Altitude Observatory, National Center for Atmospheric Research, Post Office Box 3000, Boulder, CO 80307, USA
| | - T M D Pereira
- Institute of Theoretical Astrophysics, University of Oslo, Post Office Box 1029, Blindern, N-0315 Oslo, Norway
| | - M Carlsson
- Institute of Theoretical Astrophysics, University of Oslo, Post Office Box 1029, Blindern, N-0315 Oslo, Norway
| | - V Hansteen
- Institute of Theoretical Astrophysics, University of Oslo, Post Office Box 1029, Blindern, N-0315 Oslo, Norway
| | - H Skogsrud
- Institute of Theoretical Astrophysics, University of Oslo, Post Office Box 1029, Blindern, N-0315 Oslo, Norway
| | - J Lemen
- Lockheed Martin Solar and Astrophysics Laboratory (LMSAL), 3251 Hanover Street, Organization A021S, Building 252, Palo Alto, CA 94304, USA
| | - A Title
- Lockheed Martin Solar and Astrophysics Laboratory (LMSAL), 3251 Hanover Street, Organization A021S, Building 252, Palo Alto, CA 94304, USA
| | - P Boerner
- Lockheed Martin Solar and Astrophysics Laboratory (LMSAL), 3251 Hanover Street, Organization A021S, Building 252, Palo Alto, CA 94304, USA
| | - N Hurlburt
- Lockheed Martin Solar and Astrophysics Laboratory (LMSAL), 3251 Hanover Street, Organization A021S, Building 252, Palo Alto, CA 94304, USA
| | - T D Tarbell
- Lockheed Martin Solar and Astrophysics Laboratory (LMSAL), 3251 Hanover Street, Organization A021S, Building 252, Palo Alto, CA 94304, USA
| | - J P Wuelser
- Lockheed Martin Solar and Astrophysics Laboratory (LMSAL), 3251 Hanover Street, Organization A021S, Building 252, Palo Alto, CA 94304, USA
| | - E E De Luca
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - L Golub
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - S McKillop
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - K Reeves
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - S Saar
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - P Testa
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - H Tian
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - C Kankelborg
- Department of Physics, Montana State University, Bozeman, Post Office Box 173840, Bozeman, MT 59717, USA
| | - S Jaeggli
- Department of Physics, Montana State University, Bozeman, Post Office Box 173840, Bozeman, MT 59717, USA
| | - L Kleint
- Bay Area Environmental Research Institute, 596 1st Street West, Sonoma, CA 95476, USA
| | - J Martinez-Sykora
- Bay Area Environmental Research Institute, 596 1st Street West, Sonoma, CA 95476, USA
| |
Collapse
|
39
|
Peter H, Tian H, Curdt W, Schmit D, Innes D, De Pontieu B, Lemen J, Title A, Boerner P, Hurlburt N, Tarbell TD, Wuelser JP, Martínez-Sykora J, Kleint L, Golub L, McKillop S, Reeves KK, Saar S, Testa P, Kankelborg C, Jaeggli S, Carlsson M, Hansteen V. Hot explosions in the cool atmosphere of the Sun. Science 2014; 346:1255726. [PMID: 25324397 DOI: 10.1126/science.1255726] [Citation(s) in RCA: 203] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The solar atmosphere was traditionally represented with a simple one-dimensional model. Over the past few decades, this paradigm shifted for the chromosphere and corona that constitute the outer atmosphere, which is now considered a dynamic structured envelope. Recent observations by the Interface Region Imaging Spectrograph (IRIS) reveal that it is difficult to determine what is up and down, even in the cool 6000-kelvin photosphere just above the solar surface: This region hosts pockets of hot plasma transiently heated to almost 100,000 kelvin. The energy to heat and accelerate the plasma requires a considerable fraction of the energy from flares, the largest solar disruptions. These IRIS observations not only confirm that the photosphere is more complex than conventionally thought, but also provide insight into the energy conversion in the process of magnetic reconnection.
Collapse
Affiliation(s)
- H Peter
- Max Planck Institute for Solar System Research, 37077 Göttingen, Germany.
| | - H Tian
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - W Curdt
- Max Planck Institute for Solar System Research, 37077 Göttingen, Germany
| | - D Schmit
- Max Planck Institute for Solar System Research, 37077 Göttingen, Germany
| | - D Innes
- Max Planck Institute for Solar System Research, 37077 Göttingen, Germany
| | - B De Pontieu
- Lockheed Martin Solar and Astrophysics Laboratory (LMSAL), 3251 Hanover Street, Building 252, Palo Alto, CA 94304, USA. Institute of Theoretical Astrophysics, University of Oslo, Post Office Box 1029, Blindern, NO-0315 Oslo, Norway
| | - J Lemen
- Lockheed Martin Solar and Astrophysics Laboratory (LMSAL), 3251 Hanover Street, Building 252, Palo Alto, CA 94304, USA
| | - A Title
- Lockheed Martin Solar and Astrophysics Laboratory (LMSAL), 3251 Hanover Street, Building 252, Palo Alto, CA 94304, USA
| | - P Boerner
- Lockheed Martin Solar and Astrophysics Laboratory (LMSAL), 3251 Hanover Street, Building 252, Palo Alto, CA 94304, USA
| | - N Hurlburt
- Lockheed Martin Solar and Astrophysics Laboratory (LMSAL), 3251 Hanover Street, Building 252, Palo Alto, CA 94304, USA
| | - T D Tarbell
- Lockheed Martin Solar and Astrophysics Laboratory (LMSAL), 3251 Hanover Street, Building 252, Palo Alto, CA 94304, USA
| | - J P Wuelser
- Lockheed Martin Solar and Astrophysics Laboratory (LMSAL), 3251 Hanover Street, Building 252, Palo Alto, CA 94304, USA
| | - Juan Martínez-Sykora
- Lockheed Martin Solar and Astrophysics Laboratory (LMSAL), 3251 Hanover Street, Building 252, Palo Alto, CA 94304, USA. Bay Area Environmental Research Institute, 596 1st Street West, Sonoma, CA 95476, USA
| | - L Kleint
- Lockheed Martin Solar and Astrophysics Laboratory (LMSAL), 3251 Hanover Street, Building 252, Palo Alto, CA 94304, USA. Bay Area Environmental Research Institute, 596 1st Street West, Sonoma, CA 95476, USA. NASA Ames Research Center, Moffett Field, CA 94305, USA
| | - L Golub
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - S McKillop
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - K K Reeves
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - S Saar
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - P Testa
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - C Kankelborg
- Department of Physics, Montana State University, Bozeman, Post Office Box 173840, Bozeman, MT 59717, USA
| | - S Jaeggli
- Department of Physics, Montana State University, Bozeman, Post Office Box 173840, Bozeman, MT 59717, USA
| | - M Carlsson
- Institute of Theoretical Astrophysics, University of Oslo, Post Office Box 1029, Blindern, NO-0315 Oslo, Norway
| | - V Hansteen
- Institute of Theoretical Astrophysics, University of Oslo, Post Office Box 1029, Blindern, NO-0315 Oslo, Norway
| |
Collapse
|
40
|
Kaplan SA, Cardozo L, Herschorn S, Grenabo L, Carlsson M, Arumi D, Crook TJ, Whelan L, Scholfield D, Ntanios F. Efficacy and safety of fesoterodine 8 mg in subjects with overactive bladder after a suboptimal response to tolterodine ER. Int J Clin Pract 2014; 68:1065-73. [PMID: 24898471 PMCID: PMC4265241 DOI: 10.1111/ijcp.12464] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Accepted: 04/11/2014] [Indexed: 11/28/2022] Open
Abstract
AIMS To assess fesoterodine 8 mg efficacy over time and vs. placebo in subjects with overactive bladder (OAB) who responded suboptimally to tolterodine extended release (ER) 4 mg. METHODS In a 12-week, double-blind trial, subjects with self-reported OAB symptoms for ≥ 6 months, mean of ≥ 8 micturitions and ≥ 2 to < 15 urgency urinary incontinence (UUI) episodes/24 h, and suboptimal response to tolterodine ER 4 mg (defined as ≤ 50% reduction in UUI episodes during 2-week run-in) were randomised to fesoterodine (4 mg for 1 week, 8 mg for 11 weeks) or placebo once daily. Change from baseline to week 12 in UUI episodes (primary end-point) was analysed in step-wise fashion: first, baseline vs. week 12 for fesoterodine; if significant, then change from baseline to week 12 for fesoterodine vs. placebo. RESULTS By week 12, subjects receiving fesoterodine 8 mg had significantly greater improvement from baseline vs. placebo in UUI episodes, urgency episodes and scores on the Patient Perception of Bladder Control, Urgency Perception Scale and OAB Questionnaire Symptom Bother and Health-Related Quality of Life scales and domains (all p < 0.05). 50% and 70% UUI responder rates were also significantly higher with fesoterodine 8 mg vs. placebo at week 12 (p < 0.05). Dry mouth (placebo, 4%, 12/301; fesoterodine, 16.6%, 51/308) and constipation (placebo, 1.3%, 4/301; fesoterodine, 3.9%, 12/308) were the most frequent adverse events. CONCLUSIONS Subjects who responded suboptimally to tolterodine ER 4 mg showed significant improvements in UUI and other OAB symptoms and patient-reported outcomes, with good tolerability, during treatment with fesoterodine 8 mg vs. placebo.
Collapse
Affiliation(s)
- S A Kaplan
- Weill Cornell Medical College, Cornell University, New York, NY, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Gyllenhammar T, Fernlund E, Jablonowski R, Jogi J, Engblom H, Liuba P, Arheden H, Carlsson M. Young patients with hypertrophic cardiomyopathy, but not subjects at risk, show decreased myocardial perfusion reserve quantified with CMR. Eur Heart J Cardiovasc Imaging 2014; 15:1350-7. [DOI: 10.1093/ehjci/jeu137] [Citation(s) in RCA: 17] [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: 11/14/2022] Open
|
42
|
Bakos Z, Ostenfeld E, Markstad H, Werther-Evaldsson A, Roijer A, Arheden H, Carlsson M, Borgquist R. A comparison between radial strain evaluation by speckle-tracking echocardiography and cardiac magnetic resonance imaging, for assessment of suitable segments for left ventricular lead placement in cardiac resynchronization therapy. Europace 2014; 16:1779-86. [DOI: 10.1093/europace/euu167] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
43
|
Lindberg U, Carlsson M, Hellmark T, Segelmark M. 118 BPI-ANCA and Pseudomonas serology in Swedish CF patients – a comparison. J Cyst Fibros 2014. [DOI: 10.1016/s1569-1993(14)60254-x] [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: 11/29/2022]
|
44
|
Grins E, Algotsson L, Engblom H, Carlsson M, Arheden H, Jovinge S. Tissue-aggressive inflammatory response defines the tissue aggressiveness of the post-infarction milieu. Crit Care 2014. [PMCID: PMC4068387 DOI: 10.1186/cc13381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|
45
|
Caiani E, Pellegrini A, Carminati M, Lang R, Auricchio A, Vaida P, Obase K, Sakakura T, Komeda M, Okura H, Yoshida K, Zeppellini R, Noni M, Rigo T, Erente G, Carasi M, Costa A, Ramondo B, Thorell L, Akesson-Lindow T, Shahgaldi K, Germanakis I, Fotaki A, Peppes S, Sifakis S, Parthenakis F, Makrigiannakis A, Richter U, Sveric K, Forkmann M, Wunderlich C, Strasser R, Djikic D, Potpara T, Polovina M, Marcetic Z, Peric V, Ostenfeld E, Werther-Evaldsson A, Engblom H, Ingvarsson A, Roijer A, Meurling C, Holm J, Radegran G, Carlsson M, Tabuchi H, Yamanaka T, Katahira Y, Tanaka M, Kurokawa T, Nakajima H, Ohtsuki S, Saijo Y, Yambe T, D'alto M, Romeo E, Argiento P, D'andrea A, Vanderpool R, Correra A, Sarubbi B, Calabro' R, Russo M, Naeije R, Saha SK, Warsame TA, Caelian AG, Malicse M, Kiotsekoglou A, Omran AS, Sharif D, Sharif-Rasslan A, Shahla C, Khalil A, Rosenschein U, Erturk M, Oner E, Kalkan A, Pusuroglu H, Ozyilmaz S, Akgul O, Aksu H, Akturk F, Celik O, Uslu N, Bandera F, Pellegrino M, Generati G, Donghi V, Alfonzetti E, Guazzi M, Rangel I, Goncalves A, Sousa C, Correia A, Martins E, Silva-Cardoso J, Macedo F, Maciel M, Lee S, Kim W, Yun H, Jung L, Kim E, Ko J, Enescu O, Florescu M, Rimbas R, Cinteza M, Vinereanu D, Kosmala W, Rojek A, Cielecka-Prynda M, Laczmanski L, Mysiak A, Przewlocka-Kosmala M, Liu D, Hu K, Niemann M, Herrmann S, Cikes M, Gaudron P, Knop S, Ertl G, Bijnens B, Weidemann F, Saravi M, Tamadoni A, Jalalian R, Hojati M, Ramezani S, Yildiz A, Inci U, Bilik M, Yuksel M, Oyumlu M, Kayan F, Ozaydogdu N, Aydin M, Akil M, Tekbas E, Shang Q, Zhang Q, Fang F, Wang S, Li R, Lee AP, Yu C, Mornos C, Ionac A, Cozma D, Popescu I, Ionescu G, Dan R, Petrescu L, Sawant A, Srivatsa S, Adhikari P, Mills P, Srivatsa S, Boshchenko A, Vrublevsky A, Karpov R, Trifunovic D, Stankovic S, Vujisic-Tesic B, Petrovic M, Nedeljkovic I, Banovic M, Tesic M, Petrovic M, Dragovic M, Ostojic M, Zencirci E, Esen Zencirci A, Degirmencioglu A, Karakus G, Ekmekci A, Erdem A, Ozden K, Erer H, Akyol A, Eren M, Zamfir D, Tautu O, Onciul S, Marinescu C, Onut R, Comanescu I, Oprescu N, Iancovici S, Dorobantu M, Melao F, Pereira M, Ribeiro V, Oliveira S, Araujo C, Subirana I, Marrugat J, Dias P, Azevedo A, Grillo MT, Piamonti B, Abate E, Porto A, Dell'angela L, Gatti G, Poletti A, Pappalardo A, Sinagra G, Pinto-Teixeira P, Galrinho A, Branco L, Fiarresga A, Sousa L, Cacela D, Portugal G, Rio P, Abreu J, Ferreira R, Fadel B, Abdullah N, Al-Admawi M, Pergola V, Bech-Hanssen O, Di Salvo G, Tigen MK, Pala S, Karaahmet T, Dundar C, Bulut M, Izgi A, Esen AM, Kirma C, Boerlage-Van Dijk K, Yamawaki M, Wiegerinck E, Meregalli P, Bindraban N, Vis M, Koch K, Piek J, Bouma B, Baan J, Mizia M, Sikora-Puz A, Gieszczyk-Strozik K, Lasota B, Chmiel A, Chudek J, Jasinski M, Deja M, Mizia-Stec K, Silva Fazendas Adame PR, Caldeira D, Stuart B, Almeida S, Cruz I, Ferreira A, Lopes L, Joao I, Cotrim C, Pereira H, Unger P, Dedobbeleer C, Stoupel E, Preumont N, Argacha J, Berkenboom G, Van Camp G, Malev E, Reeva S, Vasina L, Pshepiy A, Korshunova A, Timofeev E, Zemtsovsky E, Jorgensen PG, Jensen J, Fritz-Hansen T, Biering-Sorensen T, Jons C, Olsen N, Henri C, Magne J, Dulgheru R, Laaraibi S, Voilliot D, Kou S, Pierard L, Lancellotti P, Tayyareci Y, Dworakowski R, Kogoj P, Reiken J, Kenny C, Maccarthy P, Wendler O, Monaghan M, Song J, Ha T, Jung Y, Seo M, Choi S, Kim Y, Sun B, Kim D, Kang D, Song J, Le Tourneau T, Topilsky Y, Inamo J, Mahoney D, Suri R, Schaff H, Enriquez-Sarano M, Bonaque Gonzalez J, Sanchez Espino A, Merchan Ortega G, Bolivar Herrera N, Ikuta I, Macancela Quinonez J, Munoz Troyano S, Ferrer Lopez R, Gomez Recio M, Dreyfus J, Cimadevilla C, Brochet E, Himbert D, Iung B, Vahanian A, Messika-Zeitoun D, Izumo M, Takeuchi M, Seo Y, Yamashita E, Suzuki K, Ishizu T, Sato K, Aonuma K, Otsuji Y, Akashi Y, Muraru D, Addetia K, Veronesi F, Corsi C, Mor-Avi V, Yamat M, Weinert L, Lang R, Badano L, Minamisawa M, Koyama J, Kozuka A, Motoki H, Izawa A, Tomita T, Miyashita Y, Ikeda U, Florescu C, Niemann M, Liu D, Hu K, Herrmann S, Gaudron P, Scholz F, Stoerk S, Ertl G, Weidemann F, Marchel M, Serafin A, Kochanowski J, Piatkowski R, Madej-Pilarczyk A, Filipiak K, Hausmanowa-Petrusewicz I, Opolski G, Meimoun P, M'barek D, Clerc J, Neikova A, Elmkies F, Tzvetkov B, Luycx-Bore A, Cardoso C, Zemir H, Mansencal N, Arslan M, El Mahmoud R, Pilliere R, Dubourg O, Ikonomidis I, Lambadiari V, Pavlidis G, Koukoulis C, Kousathana F, Varoudi M, Tritakis V, Triantafyllidi H, Dimitriadis G, Lekakis I, Kovacs A, Kosztin A, Solymossy K, Celeng C, Apor A, Faludi M, Berta K, Szeplaki G, Foldes G, Merkely B, Kimura K, Daimon M, Nakajima T, Motoyoshi Y, Komori T, Nakao T, Kawata T, Uno K, Takenaka K, Komuro I, Gabric ID, Vazdar L, Pintaric H, Planinc D, Vinter O, Trbusic M, Bulj N, Nobre Menezes M, Silva Marques J, Magalhaes R, Carvalho V, Costa P, Brito D, Almeida A, Nunes-Diogo A, Davidsen ES, Bergerot C, Ernande L, Barthelet M, Thivolet S, Decker-Bellaton A, Altman M, Thibault H, Moulin P, Derumeaux G, Huttin O, Voilliot D, Frikha Z, Aliot E, Venner C, Juilliere Y, Selton-Suty C, Yamada T, Ooshima M, Hayashi H, Okabe S, Johno H, Murata H, Charalampopoulos A, Tzoulaki I, Howard L, Davies R, Gin-Sing W, Grapsa J, Wilkins M, Gibbs J, Castillo J, Bandeira A, Albuquerque E, Silveira C, Pyankov V, Chuyasova Y, Lichodziejewska B, Goliszek S, Kurnicka K, Dzikowska Diduch O, Kostrubiec M, Krupa M, Grudzka K, Ciurzynski M, Palczewski P, Pruszczyk P, Arana X, Oria G, Onaindia J, Rodriguez I, Velasco S, Cacicedo A, Palomar S, Subinas A, Zumalde J, Laraudogoitia E, Saeed S, Kokorina M, Fromm A, Oeygarden H, Waje-Andreassen U, Gerdts E, Gomez E, Vallejo N, Pedro-Botet L, Mateu L, Nunyez R, Llobera L, Bayes A, Sabria M, Antonini-Canterin F, Mateescu A, La Carrubba S, Vriz O, Di Bello V, Carerj S, Zito C, Ginghina C, Popescu B, Nicolosi G, Mateescu A, La Carrubba S, Vriz O, Di Bello V, Carerj S, Zito C, Ginghina C, Popescu B, Nicolosi G, Antonini-Canterin F, Pudil R, Praus R, Vasatova M, Vojacek J, Palicka V, Hulek P, Pradel S, Mohty D, Damy T, Echahidi N, Lavergne D, Virot P, Aboyans V, Jaccard A, Mateescu A, La Carrubba S, Vriz O, Di Bello V, Carerj S, Zito C, Ginghina C, Popescu B, Nicolosi G, Antonini-Canterin F, Doulaptsis C, Symons R, Matos A, Florian A, Masci P, Dymarkowski S, Janssens S, Bogaert J, Lestuzzi C, Moreo A, Celik S, Lafaras C, Dequanter D, Tomkowski W, De Biasio M, Cervesato E, Massa L, Imazio M, Watanabe N, Kijima Y, Akagi T, Toh N, Oe H, Nakagawa K, Tanabe Y, Ikeda M, Okada K, Ito H, Milanesi O, Biffanti R, Varotto E, Cerutti A, Reffo E, Castaldi B, Maschietto N, Vida V, Padalino M, Stellin G, Bejiqi R, Retkoceri R, Bejiqi H, Retkoceri A, Surdulli S, Massoure P, Cautela J, Roche N, Chenilleau M, Gil J, Fourcade L, Akhundova A, Cincin A, Sunbul M, Sari I, Tigen M, Basaran Y, Suermeci G, Butz T, Schilling I, Sasko B, Liebeton J, Van Bracht M, Tzikas S, Prull M, Wennemann R, Trappe H, Attenhofer Jost CH, Pfyffer M, Scharf C, Seifert B, Faeh-Gunz A, Naegeli B, Candinas R, Medeiros-Domingo A, Wierzbowska-Drabik K, Roszczyk N, Sobczak M, Plewka M, Krecki R, Kasprzak J, Ikonomidis I, Varoudi M, Papadavid E, Theodoropoulos K, Papadakis I, Pavlidis G, Triantafyllidi H, Anastasiou - Nana M, Rigopoulos D, Lekakis J, Tereshina O, Surkova E, Vachev A, Merchan Ortega G, Bonaque Gonzalez J, Sanchez Espino A, Bolivar Herrera N, Bravo Bustos D, Ikuta I, Aguado Martin M, Navarro Garcia F, Ruiz Lopez F, Gomez Recio M, Merchan Ortega G, Bonaque Gonzalez J, Bravo Bustos D, Sanchez Espino A, Bolivar Herrera N, Bonaque Gonzalez J, Navarro Garcia F, Aguado Martin M, Ruiz Lopez M, Gomez Recio M, Eguchi H, Maruo T, Endo K, Nakamura K, Yokota K, Fuku Y, Yamamoto H, Komiya T, Kadota K, Mitsudo K, Nagy AI, Manouras A, Gunyeli E, Shahgaldi K, Winter R, Hoffmann R, Barletta G, Von Bardeleben S, Kasprzak J, Greis C, Vanoverschelde J, Becher H, Hu K, Liu D, Niemann M, Herrmann S, Cikes M, Gaudron P, Knop S, Ertl G, Bijnens B, Weidemann F, Di Salvo G, Al Bulbul Z, Issa Z, Khan A, Faiz A, Rahmatullah S, Fadel B, Siblini G, Al Fayyadh M, Menting ME, Van Den Bosch A, Mcghie J, Cuypers J, Witsenburg M, Van Dalen B, Geleijnse M, Roos-Hesselink J, Olsen F, Jorgensen P, Mogelvang R, Jensen J, Fritz-Hansen T, Bech J, Biering-Sorensen T, Agoston G, Pap R, Saghy L, Forster T, Varga A, Scandura S, Capodanno D, Dipasqua F, Mangiafico S, Caggegi AM, Grasso C, Pistritto AM, Imme' S, Ministeri M, Tamburino C, Cameli M, Lisi M, D'ascenzi F, Cameli P, Losito M, Sparla S, Lunghetti S, Favilli R, Fineschi M, Mondillo S, Ojaghihaghighi Z, Javani B, Haghjoo M, Moladoust H, Shahrzad S, Ghadrdoust B, Altman M, Aussoleil A, Bergerot C, Bonnefoy-Cudraz E, Derumeaux GA, Thibault H, Shkolnik E, Vasyuk Y, Nesvetov V, Shkolnik L, Varlan G, Gronkova N, Kinova E, Borizanova A, Goudev A, Saracoglu E, Ural D, Sahin T, Al N, Cakmak H, Akbulut T, Akay K, Ural E, Mushtaq S, Andreini D, Pontone G, Bertella E, Conte E, Baggiano A, Annoni A, Formenti A, Fiorentini C, Pepi M, Cosgrove C, Carr L, Chao C, Dahiya A, Prasad S, Younger J, Biering-Sorensen T, Christensen L, Krieger D, Mogelvang R, Jensen J, Hojberg S, Host N, Karlsen F, Christensen H, Medressova A, Abikeyeva L, Dzhetybayeva S, Andossova S, Kuatbayev Y, Bekbossynova M, Bekbossynov S, Pya Y, Farsalinos K, Tsiapras D, Kyrzopoulos S, Spyrou A, Stefopoulos C, Romagna G, Tsimopoulou K, Tsakalou M, Voudris V, Cacicedo A, Velasco Del Castillo S, Anton Ladislao A, Aguirre Larracoechea U, Onaindia Gandarias J, Romero Pereiro A, Arana Achaga X, Zugazabeitia Irazabal G, Laraudogoitia Zaldumbide E, Lekuona Goya I, Varela A, Kotsovilis S, Salagianni M, Andreakos V, Davos C, Merchan Ortega G, Bonaque Gonzalez J, Sanchez Espino A, Bolivar Herrera N, Macancela Quinones J, Ikuta I, Ferrer Lopez R, Munoz Troyano S, Bravo Bustos D, Gomez Recio M. Poster session Friday 13 December - PM: 13/12/2013, 14:00-18:00 * Location: Poster area. Eur Heart J Cardiovasc Imaging 2013. [DOI: 10.1093/ehjci/jet206] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
46
|
Stinson SE, Amrani Y, Carlsson M, Brightling C. S20 CRTH2 is expressed by the bronchial epithelium and its activation drives epithelial differentiation. Thorax 2013. [DOI: 10.1136/thoraxjnl-2013-204457.27] [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: 11/04/2022]
|
47
|
Bakos Z, Markstad H, Ostenfeld E, Carlsson M, Roijer A, Borgquist R. Combined preoperative information using a bullseye plot from speckle tracking echocardiography, cardiac CT scan, and MRI scan: targeted left ventricular lead implantation in patients receiving cardiac resynchronization therapy. Eur Heart J Cardiovasc Imaging 2013; 15:523-31. [DOI: 10.1093/ehjci/jet233] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
48
|
Skogar Ö, Borg A, Larsson B, Robertsson L, Andersson L, Andersson L, Backstrom P, Fall PA, Hallgren G, Bringer B, Carlsson M, Lennartsson U, Sandbjork H, Lökk J, Törnhage CJ. “Effects of Tactile Touch on pain, sleep and health related quality of life in Parkinson's disease with chronic pain”: A randomized, controlled and prospective study. Eur J Integr Med 2013. [DOI: 10.1016/j.eujim.2012.10.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
49
|
Aanaes K, Rasmussen N, Pressler T, Segelmark M, Johansen HK, Lindberg U, Høiby N, Carlsson M, Wieslander J, Buchwald C. Extensive endoscopic image-guided sinus surgery decreases BPI-ANCA in patients with cystic fibrosis. Scand J Immunol 2013; 76:573-9. [PMID: 22946777 DOI: 10.1111/j.1365-3083.2012.02775.x] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Antineutrophil cytoplasm autoantibodies (ANCA) directed against bactericidal/permeability-increasing protein (BPI) are common in patients with cystic fibrosis (CF), and serum levels are correlated with lung colonization by Pseudomonas aeruginosa and the severity of lung damage. The production of BPI-ANCA may be due to the costimulation of BPI when mounting an immune response against P. aeruginosa. The effect of surgery aiming to eradicate bacteria and infected tissue on BPI-ANCA levels is sparsely described. A cohort of patients with CF were included: 53 patients having extensive image-guided sinus surgery (EIGSS) with topical postoperative antibiotic treatment, 131 non-operated controls and 36 who had double lung transplantation (LTX). In all 219 patients, serum samples before and after surgery or at similar intervals were analysed for IgG and IgA BPI-ANCA. The EIGSS group showed a highly significant decrease in both IgA and IgG BPI-ANCA levels compared with their own preoperative values and control group values (P < 0.001-0.02). The LTX patients also showed a highly significant decrease in both IgA and IgG BPI-ANCA levels (P < 0.001). EIGSS and LTX decrease IgA and IgG BPI-ANCA levels in patients with CF, indicating that extensive removal of infected tissue influences the pathogenic process of autoantibody production. The results shown herein are in favour of applying EIGSS in selected patients with CF and for using BPI-ANCA as a surrogate marker for guiding further therapeutic interventions.
Collapse
Affiliation(s)
- K Aanaes
- Department of Otolaryngology-Head & Neck Surgery, Rigshospitalet, Copenhagen, Denmark.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
50
|
Carlsson M, Håglin L, Rosendahl E, Gustafson Y. Poor nutritional status is associated with urinary tract infection among older people living in residential care facilities. J Nutr Health Aging 2013; 17:186-91. [PMID: 23364500 DOI: 10.1007/s12603-012-0087-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIM To investigate factors associated with poor nutritional status in older people living in residential care facilities. METHODS 188 residents (136 women, 52 men) with physical and cognitive impairments participated. Mean age was 84.7 y (range 65-100). The Mini Nutritional Assessment (MNA), Barthel ADL Index, Mini Mental State Examination (MMSE), and Geriatric Depression Scale were used to evaluate nutritional status, activities of daily living, cognitive status and depressive symptoms. Medical conditions, clinical characteristics and prescribed drugs were recorded. Univariate and multivariate regressions were used to investigate associations with MNA scores. RESULTS The mean MNA score was 20.5 ± 3.7 (range 5.5-27) and the median was 21 (interquartile range (IQR) 18.8-23.0). Fifteen per cent of participants were classified as malnourished and 66% at risk of malnutrition. Lower MNA scores were independently associated with urinary tract infection (UTI) during the preceding year (β = - 0.21, P = 0.006), lower MMSE scores (β = 0.16, P = 0.030), and dependent in feeding (β = - 0.14, P = 0.040). CONCLUSION The majority of participants were at risk of or suffering from malnutrition. Urinary tract infection during the preceding year was independently associated with poor nutritional status. Dependence in feeding was also associated with poor nutritional status as were low MMSE scores for women. Prospective observations and randomized controlled trials are necessary to gain an understanding of a causal association between malnutrition and UTI.
Collapse
Affiliation(s)
- M Carlsson
- Department of Community Medicine and Rehabilitation, Geriatric Medicine, Umeå University, Umeå, Sweden.
| | | | | | | |
Collapse
|