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Hammareus F, Nilsson L, Ong KL, Kristenson M, Festin K, Lundberg A, Chung RWS, Swahn E, Alfredsson J, Holm Nielsen S, Jonasson L. Investigation of type 1 collagen a1 chain in plasma as a potential novel biomarker for prediction of coronary heart disease. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2297] [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
Remodeling of the extracellular matrix (ECM) plays a crucial role in development and progression of atherosclerosis. Collagens, in particular type I collagen, are the most abundant ECM proteins in an atherosclerotic plaque. Recently, type I collagen α1 chain (COL1α1) in plasma was identified as a potential predictor of coronary heart disease (CHD).
Aim
The aim was to further confirm the predictive value of COL1α1 and also to investigate its correlates in a population-based cohort as well as changes over time in patients with manifest CHD in Sweden.
Methods
In a total of 1007 well-characterized individuals (50% women), 86 CHD cases and 184 sex- and age-matched controls were identified at 13 years follow-up. CHD at follow-up was defined as first-time event of myocardial infarction (MI) or invasive coronary intervention. Plasma levels of COL1α1 was quantified by the Luminex assay while PRO-C1 and C1M, two markers of type I collagen synthesis and degradation, respectively, were quantified by ELISA. In Cox proportional hazard analysis, log2 values of biomarker levels were used. In addition, temporal change of COL1α1 levels was also examined in a cohort of 125 patients with acute MI followed for 6 months.
Results
COL1α1 levels were significantly associated with incident CHD, both unadjusted (HR = 0.69, 95% CI 0.56–0.87, p=0.001) and after multiple adjustment (HR = 0.55, 95% CI 0.41–0.75, p<0.001). PRO-C1 was similarly associated with CHD, unadjusted (HR = 0.62, 95% CI 0.47–0.82, p=0.001) as well as adjusted (HR = 0.61, 95% CI 0.43–0.86, p=0.005), while C1M was not. In patients with acute MI, COL1α1 levels remained stable over 6 months. COL1α1 was significantly correlated to PRO-C1 (r=0.73, p<0.001), while there were no correlations to C1M, markers of inflammation (C-reactive protein, interleukin-6, matrix metalloproteinase-9) or myocardial injury (troponin T).
Conclusions
Circulating COL1α1 in plasma was independently and inversely associated with incident CHD. Furthermore, COL1α1 levels appeared to be relatively stable after an acute MI. COL1α1 levels seem to reflect collagen synthesis rather than collagen degradation and inflammation. Future studies are needed to confirm whether COL1α1 is a clinically useful marker and/or predictor of CHD.
Funding Acknowledgement
Type of funding sources: Public Institution(s). Main funding source(s): This research was in part financed by a grant from the Region of Östergötland, Sweden, aimed towards scientists early in their career. We would like to thank the people behind this grant for contributing to this research.This research was also partly supported by Futurum - the academy for healthcare in Region Jönköping County.
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Affiliation(s)
- F Hammareus
- Department of Medical and Health Sciences Linkoping University , Linkoping , Sweden
| | - L Nilsson
- Linkoping University , Linkoping , Sweden
| | - K L Ong
- University of New South Wales Sydney , Sydney , Australia
| | | | - K Festin
- Linkoping University , Linkoping , Sweden
| | - A Lundberg
- Linkoping University , Linkoping , Sweden
| | | | - E Swahn
- Linkoping University , Linkoping , Sweden
| | | | - S Holm Nielsen
- Technical University of Denmark , Kongens Lyngby , Denmark
| | - L Jonasson
- Linkoping University , Linkoping , Sweden
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Savarese G, Hage C, Benson L, Schrage B, Thorvaldsen T, Lundberg A, Fudim M, Linde C, Dahlström U, Rosano GMC, Lund LH. Eligibility for sacubitril/valsartan in heart failure across the ejection fraction spectrum: real-world data from the Swedish Heart Failure Registry. J Intern Med 2021; 289:369-384. [PMID: 32776357 PMCID: PMC7984286 DOI: 10.1111/joim.13165] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/09/2020] [Accepted: 08/03/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Randomized controlled trials (RCT) generalizability may be limited due to strict patient selection. OBJECTIVE In a real-world heart failure (HF) population, we assessed eligibility for sacubitril/valsartan based on PARADIGM-HF (sacubitril/valsartan effective)/PARAGON-HF [sacubitril/valsartan effective in mildly reduced ejection fraction (EF)]. METHODS Outpatients from the Swedish HF Registry (SwedeHF) were analysed. In SwedeHF, EF is recorded as <30, 30-39, 40-49 and ≥50%. In PARAGON-HF, sacubitril/valsartan was effective with EF ≤ 57% (i.e. median). We defined reduced EF/PARADIGM-HF as EF < 40%, mildly reduced EF/PARAGON-HF ≤ median as EF 40-49%, and normal EF/PARAGON-HF > median as EF ≥ 50%. We assessed 2 scenarios: (i) criteria likely to influence treatment decisions (pragmatic scenario); (ii) all criteria (literal scenario). RESULTS Of 37 790 outpatients, 57% had EF < 40%, 24% EF 40-49% and 19% EF ≥ 50%. In the pragmatic scenario, 63% were eligible in EF < 50% (67% for EF < 40% and 52% for 40-49%) and 52% in EF ≥ 40% (52% for EF ≥ 50%). For the literal scenario, 32% were eligible in EF < 50% (38% of EF < 40%, 20% of EF 40-49%) and 22% in EF ≥ 40% (25% for EF ≥ 50%). Eligible vs. noneligible patients had more severe HF, more comorbidities and overall worse outcomes. CONCLUSION In a real-world HF outpatient cohort, 81% of patients had EF < 50%, with 63% eligible for sacubitril/valsartan based on pragmatic criteria and 32% eligible based on literal trial criteria. Similar eligibility was observed for EF 40-49% and ≥50%, suggesting that our estimates for EF < 50% may be reproduced whether or not a higher cut-off for EF is considered.
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Affiliation(s)
- G Savarese
- From the, Division of Cardiology, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| | - C Hage
- From the, Division of Cardiology, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| | - L Benson
- From the, Division of Cardiology, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| | - B Schrage
- From the, Division of Cardiology, Department of Medicine, Karolinska Institutet, Stockholm, Sweden.,Department of Cardiology, University Heart and Vascular Center Hamburg, Hamburg, Germany
| | - T Thorvaldsen
- From the, Division of Cardiology, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| | | | - M Fudim
- Duke University Medical Center, Durham, NC, USA
| | - C Linde
- From the, Division of Cardiology, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| | - U Dahlström
- Department of Cardiology and Department of Health, Medicine and Caring Sciences, Linkoping University, Linkoping, Sweden
| | - G M C Rosano
- Department of Medical Sciences, IRCCS San Raffaele, Rome, Italy.,Cardiology Clinical Academic Group, St George's Hospitals NHS Trust University of London, London, UK
| | - L H Lund
- From the, Division of Cardiology, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
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Mahmood Z, Lundberg A, Back M, Jonasson L. P2669Enhanced interleukin-6 expression and impaired cortisol response in patients with coronary artery disease. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2669] [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)
- Z Mahmood
- Linkoping University, Division of Cardiovascular Medicine, Department of Medical and Health Sciences, Linkoping, Sweden
| | - A Lundberg
- Linkoping University, Division of Cardiovascular Medicine, Department of Medical and Health Sciences, Linkoping, Sweden
| | - M Back
- Sahlgrenska University Hospital, Department of Occupational Therapy and Physiotherapy, Goteborg, Sweden
| | - L Jonasson
- Linkoping University, Division of Cardiovascular Medicine, Department of Medical and Health Sciences, Linkoping, Sweden
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Lundberg A, Jonson J, Hage C, Back M, Merkely B, Venkateshvaran A, Lund L, Manouras A, Nagy AI. P5616Left atrial strain improves estimation of filling pressures at rest and during exercise in heart failure. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- A Lundberg
- Karolinska Institute, Department of Medicine, Stockholm, Sweden
| | - J Jonson
- Karolinska University Hospital, Centre for Fetal Medicine Department of Obstetrics and Gynecology, Stockholm, Sweden
| | - C Hage
- Karolinska Institute, Department of Medicine, Stockholm, Sweden
| | - M Back
- Karolinska University Hospital, Theme of Heart and Vessels, Stockholm, Sweden
| | - B Merkely
- Semmelweis University, Heart Center, Budapest, Hungary
| | - A Venkateshvaran
- Karolinska University Hospital, Theme of Heart and Vessels, Stockholm, Sweden
| | - L Lund
- Karolinska Institute, Department of Medicine, Stockholm, Sweden
| | - A Manouras
- Karolinska University Hospital, Theme of Heart and Vessels, Stockholm, Sweden
| | - A I Nagy
- Semmelweis University, Heart Center, Budapest, Hungary
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Blache Y, Dumas R, Lundberg A, Begon M. Main component of soft tissue artifact of the upper-limbs with respect to different functional, daily life and sports movements. J Biomech 2017; 62:39-46. [DOI: 10.1016/j.jbiomech.2016.10.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 09/13/2016] [Accepted: 10/02/2016] [Indexed: 12/16/2022]
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Tobin NP, Lundberg A, Lindström LS, Harrell JC, Egyhazi Brage S, Frostvik Stolt M, Einbeigi Z, Loman N, Malmberg M, Perou CM, Bergh J, Hatschek T. Abstract P1-07-16: Multi-level gene expression signatures provide significant prognostic information in metastatic breast cancer patients. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p1-07-16] [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] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: We have previously demonstrated how transcriptional pathway activity and the molecular subtypes of breast cancer metastases significantly influence patient post-relapse survival. Here we extend our analysis to determine whether the prognostic information provided by gene expression signatures in primary breast tumours is also relevant in the metastatic setting. Specifically, we test the research versions of the Genomic Grade Index (GGI), Mammaprint, Recurrence score (RS) and PAM50 gene signatures along with our own cell-cycle based classifier (CCS).
Methods: 287 patients with morphologically confirmed loco-regional or distant breast cancer relapse were enrolled in the Swedish multicenter TEX trial from December 2002 until June 2007. Of these, sufficient tumour RNA for gene expression profiling was obtained from metastatic tissue by fine needle aspiration from 111 patients (totalling 120 relapse biopsies). Gene signatures were applied as described in the original research articles and their relationship to short (1.5 year) and long-term (5 year) post-relapse survival was assessed using likelihood ratio, Kaplan-Meier and Cox regression analysis.
Results: As anticipated from an aggressive metastatic cohort, the majority of samples (> 70%) were classified into intermediate or high risk groups by all signatures. In both short and long-term survival analysis only PAM50 provided statistically significant prognostic information (short: LRχ2 = 14.7, p = 0.005 and long: LRχ2 = 13.2, p = 0.010), with the cell cycle score signature displaying a prognostic trend in long-term survival only (LRχ2 = 5.2, p = 0.074). Kaplan-Meier curves and Cox regression analysis suggest that the strength of both signatures resides in their ability to select a group of low-risk patients with better long-term survival.
Conclusions: Our findings demonstrate the prognostic utility of the multi-level PAM50 and to a lesser extent, cell cycle score signatures in predicting survival of patients with metastatic breast cancer. Simpler binary gene expression signatures (GGI and Mammaprint) do not appear to capture the same prognostic information and as such may have limited utility in a metastatic setting.
Short and long term survival Likehood Ratios for five gene expression signatures in metastatic breast cancer Short term survival (1.5 year)Long term survival (5 year)Gene SignatureLRχ2P-valueLRχ2P-valueGGI1.30.2510.50.500Mammaprint1.70.1900.60.427RS3.90.1434.40.110CCS2.80.2425.20.074PAM5014.70.00513.20.010GGI: Genomic grade index; RS: Recurrence score; CCS: Cell cycle score
Citation Format: Tobin NP, Lundberg A, Lindström LS, Harrell JC, Egyhazi Brage S, Frostvik Stolt M, Einbeigi Z, Loman N, Malmberg M, Perou CM, Bergh J, Hatschek T. Multi-level gene expression signatures provide significant prognostic information in metastatic breast cancer patients [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr P1-07-16.
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Affiliation(s)
- NP Tobin
- Karolinska Institutet and University Hospital, Stockholm, Sweden; Virginia Commonwealth University, Richmond; Sahlgrenska University Hospital, Gothenburg, Sweden; Skåne University Hospital, Lund, Sweden; Skåne University Hospital, Helsingborg, Sweden; Lineberger Comprehensive Cancer Center, University of North Carolina-Chapel Hill, Chapel Hill
| | - A Lundberg
- Karolinska Institutet and University Hospital, Stockholm, Sweden; Virginia Commonwealth University, Richmond; Sahlgrenska University Hospital, Gothenburg, Sweden; Skåne University Hospital, Lund, Sweden; Skåne University Hospital, Helsingborg, Sweden; Lineberger Comprehensive Cancer Center, University of North Carolina-Chapel Hill, Chapel Hill
| | - LS Lindström
- Karolinska Institutet and University Hospital, Stockholm, Sweden; Virginia Commonwealth University, Richmond; Sahlgrenska University Hospital, Gothenburg, Sweden; Skåne University Hospital, Lund, Sweden; Skåne University Hospital, Helsingborg, Sweden; Lineberger Comprehensive Cancer Center, University of North Carolina-Chapel Hill, Chapel Hill
| | - JC Harrell
- Karolinska Institutet and University Hospital, Stockholm, Sweden; Virginia Commonwealth University, Richmond; Sahlgrenska University Hospital, Gothenburg, Sweden; Skåne University Hospital, Lund, Sweden; Skåne University Hospital, Helsingborg, Sweden; Lineberger Comprehensive Cancer Center, University of North Carolina-Chapel Hill, Chapel Hill
| | - S Egyhazi Brage
- Karolinska Institutet and University Hospital, Stockholm, Sweden; Virginia Commonwealth University, Richmond; Sahlgrenska University Hospital, Gothenburg, Sweden; Skåne University Hospital, Lund, Sweden; Skåne University Hospital, Helsingborg, Sweden; Lineberger Comprehensive Cancer Center, University of North Carolina-Chapel Hill, Chapel Hill
| | - M Frostvik Stolt
- Karolinska Institutet and University Hospital, Stockholm, Sweden; Virginia Commonwealth University, Richmond; Sahlgrenska University Hospital, Gothenburg, Sweden; Skåne University Hospital, Lund, Sweden; Skåne University Hospital, Helsingborg, Sweden; Lineberger Comprehensive Cancer Center, University of North Carolina-Chapel Hill, Chapel Hill
| | - Z Einbeigi
- Karolinska Institutet and University Hospital, Stockholm, Sweden; Virginia Commonwealth University, Richmond; Sahlgrenska University Hospital, Gothenburg, Sweden; Skåne University Hospital, Lund, Sweden; Skåne University Hospital, Helsingborg, Sweden; Lineberger Comprehensive Cancer Center, University of North Carolina-Chapel Hill, Chapel Hill
| | - N Loman
- Karolinska Institutet and University Hospital, Stockholm, Sweden; Virginia Commonwealth University, Richmond; Sahlgrenska University Hospital, Gothenburg, Sweden; Skåne University Hospital, Lund, Sweden; Skåne University Hospital, Helsingborg, Sweden; Lineberger Comprehensive Cancer Center, University of North Carolina-Chapel Hill, Chapel Hill
| | - M Malmberg
- Karolinska Institutet and University Hospital, Stockholm, Sweden; Virginia Commonwealth University, Richmond; Sahlgrenska University Hospital, Gothenburg, Sweden; Skåne University Hospital, Lund, Sweden; Skåne University Hospital, Helsingborg, Sweden; Lineberger Comprehensive Cancer Center, University of North Carolina-Chapel Hill, Chapel Hill
| | - CM Perou
- Karolinska Institutet and University Hospital, Stockholm, Sweden; Virginia Commonwealth University, Richmond; Sahlgrenska University Hospital, Gothenburg, Sweden; Skåne University Hospital, Lund, Sweden; Skåne University Hospital, Helsingborg, Sweden; Lineberger Comprehensive Cancer Center, University of North Carolina-Chapel Hill, Chapel Hill
| | - J Bergh
- Karolinska Institutet and University Hospital, Stockholm, Sweden; Virginia Commonwealth University, Richmond; Sahlgrenska University Hospital, Gothenburg, Sweden; Skåne University Hospital, Lund, Sweden; Skåne University Hospital, Helsingborg, Sweden; Lineberger Comprehensive Cancer Center, University of North Carolina-Chapel Hill, Chapel Hill
| | - T Hatschek
- Karolinska Institutet and University Hospital, Stockholm, Sweden; Virginia Commonwealth University, Richmond; Sahlgrenska University Hospital, Gothenburg, Sweden; Skåne University Hospital, Lund, Sweden; Skåne University Hospital, Helsingborg, Sweden; Lineberger Comprehensive Cancer Center, University of North Carolina-Chapel Hill, Chapel Hill
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Lundberg A, Lindström LS, Falato C, Carlson JW, Foukakis T, Czene K, Bergh J, Tobin NP. Abstract P1-07-07: Gene expression signatures and immunohistochemical subtypes add prognostic value to each other. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p1-07-07] [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] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: We have previously demonstrated that gene expression signatures and Ki67 stratify the same breast tumour into opposing good/poor prognosis groups in approximately 20% of cases. Given this, we hypothesized that the combination of a clinically relevant gene signature and IHC markers may provide more prognostic information than either classifier alone. We tested this hypothesis in a large independent cohort of Swedish breast cancer patients with long-term follow-up data.
Methods: We assessed Ki67, ER, PR, HER2 and the research versions of the Genomic Grade Index (GGI), Mammaprint, cell-cycle score (CCS), Recurrence Score (RS) and PAM50 gene expression classifiers on matching TMA and microarray data in a Swedish breast cancer cohort of 623 patients. Change in likelihood-ratio (Δ LR-χ2) was used to first determine the additional prognostic information provided by gene expression signatures beyond that provided by 1) Ki67 alone and 2) Ki67 plus ER, PR and HER2, grouped to form the IHC molecular subtypes. Secondly and conversely, we then determined the additional prognostic information provided by Ki67/IHC subtypes beyond gene expression signatures.
Results: Representative images from Ki67/gene signature contrast groups show tumours with high levels of Ki67 expression that are classified as good prognosis by gene signatures and conversely, tumours with low Ki67 that are classified into poor prognosis groups by gene signatures. In all patients (n=623), the majority of signatures provided statistically significant information beyond that of Ki67 alone, however only RS and PAM50 remained significant in the presence of the IHC subtypes (Δ LR-χ2 RS= 11.7 and PAM50 = 15.4; P = 0.002 and 0.004, respectively). Conversely, IHC subtypes added prognostic information beyond gene signatures whilst Ki67 alone did not, a notable exception to this was PAM50.
Conclusions: In general, a combination of the IHC subtypes with gene signatures provides more prognostic information than either classifier alone when considering all breast cancer patients. Subsequent analyses will focus on patient subgroups including ER positive, node positive and ER positive, node negative groups, along with validation of our work in a second dataset of 253 patients.
Change in likelhood ratio with the addition of gene expression signatures to Ki67/IHC subgroups and vice-versa All Patients All PatientsSig. added to Ki67:Sig. Δ LRχ2P-valueSig. added to IHC subtypesSig. Δ LRχ2P-valueGGI6.00.014GGI2.50.108Mammaprint6.30.011Mammaprint1.10.279RS20.8< 0.001RS11.70.002CCS1.70.409CCS2.00.360PAM5025.0< 0.001PAM5015.40.004 Ki67 added to sig.:Ki67 Δ LRχ2P-valueIHC added to sig.:IHC Δ LRχ2P-valueGGI1.60.205GGI14.90.001Mammaprint1.60.199Mammaprint15.30.001RS0.50.477RS12.60.005CCS4.10.041CCS16.10.001PAM502.30.13PAM506.10.107Sig.: Gene expression signature; GGI: Genomic grade index; RS: Recurrence score; CCS: Cell cycle score.
Citation Format: Lundberg A, Lindström LS, Falato C, Carlson JW, Foukakis T, Czene K, Bergh J, Tobin NP. Gene expression signatures and immunohistochemical subtypes add prognostic value to each other [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr P1-07-07.
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Affiliation(s)
- A Lundberg
- Karolinska Institutet and University Hospital, Stockholm, Sweden
| | - LS Lindström
- Karolinska Institutet and University Hospital, Stockholm, Sweden
| | - C Falato
- Karolinska Institutet and University Hospital, Stockholm, Sweden
| | - JW Carlson
- Karolinska Institutet and University Hospital, Stockholm, Sweden
| | - T Foukakis
- Karolinska Institutet and University Hospital, Stockholm, Sweden
| | - K Czene
- Karolinska Institutet and University Hospital, Stockholm, Sweden
| | - J Bergh
- Karolinska Institutet and University Hospital, Stockholm, Sweden
| | - NP Tobin
- Karolinska Institutet and University Hospital, Stockholm, Sweden
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Ulfsdotter L, Lundberg A, Andersson M. Rehoming of pet rabbits (Oryctolagus cuniculus) in Sweden: an investigation of national advertisement. Anim Welf 2016. [DOI: 10.7120/09627286.25.3.303] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Michaud B, Jackson M, Arndt A, Lundberg A, Begon M. Determining in vivo sternoclavicular, acromioclavicular and glenohumeral joint centre locations from skin markers, CT-scans and intracortical pins: A comparison study. Med Eng Phys 2016; 38:290-6. [DOI: 10.1016/j.medengphy.2015.12.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Revised: 11/06/2015] [Accepted: 12/06/2015] [Indexed: 10/22/2022]
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Siergieiev D, Widerlund A, Ingri J, Lundberg A, Öhlander B. Flow regulation effects on the hydrogeochemistry of the hyporheic zone in boreal rivers. Sci Total Environ 2014; 499:424-436. [PMID: 25022722 DOI: 10.1016/j.scitotenv.2014.06.112] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2014] [Revised: 06/23/2014] [Accepted: 06/24/2014] [Indexed: 06/03/2023]
Abstract
River-aquifer interfaces are essential for ecosystem functioning in terms of nutrient exchange and biological habitat, but are greatly threatened world-wide. This study examined geochemical aspects of river-aquifer interaction in one regulated and one unregulated boreal river in Northern Sweden to determine whether the geochemical functioning of the hyporheic zone is affected by hydrological alterations, e.g. regulated river discharge and river-aquifer connectivity. In the unregulated Kalix River, the hyporheic pore water was well-oxygenated with orthogonal fluxes (≈0.6-0.7 m d(-1)) and acted as a sink for Fe, Mn, Al, NH4, and Ca, with fractional losses of 95%, 92%, 45%, 31%, and 15%, respectively. A corresponding elevation in the concentrations of these elements in the hyporheic sediment was observed, with higher saturation indices of Fe-, Mn-, and Al-bearing secondary minerals in hyporheic waters. In the regulated Lule River, hydraulic connectivity at the river-aquifer interface was altered by the presence of a clogging layer (0.04 m d(-1)). In addition, the river discharge oscillated daily, severely reducing exchange flows across the riverbed (<0.01 m d(-1)). As a result, the hyporheic pore water was suboxic, with elevated concentrations of filtered Fe and Mn (fractional increases of ≈3700% and ≈2500%, respectively) and other solutes (NH4, Si, S, Ca). A conceptual model revealed functional differences between geochemical features of the hyporheic zone of regulated and unregulated rivers. Overall, the results showed that hyporheic processes are altered along regulated rivers, with resulting impacts on the geochemistry of riverine, riparian and related marine ecosystems.
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Affiliation(s)
- D Siergieiev
- Dep. Civ. Env. and Nat. Res. Eng., Lulea University of Technology, SE-971 87 Lulea, Sweden.
| | - A Widerlund
- Dep. Civ. Env. and Nat. Res. Eng., Lulea University of Technology, SE-971 87 Lulea, Sweden
| | - J Ingri
- Dep. Civ. Env. and Nat. Res. Eng., Lulea University of Technology, SE-971 87 Lulea, Sweden
| | - A Lundberg
- Dep. Civ. Env. and Nat. Res. Eng., Lulea University of Technology, SE-971 87 Lulea, Sweden
| | - B Öhlander
- Dep. Civ. Env. and Nat. Res. Eng., Lulea University of Technology, SE-971 87 Lulea, Sweden
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Zhang X, Johansson M, Lundberg A, Levin M, Yuan X, Folkersen L, Eriksson P, Hedin U, Boren J, Hansson G, Yan Z. The role of innate immune receptor nod2 in atherosclerosis. Atherosclerosis 2014. [DOI: 10.1016/j.atherosclerosis.2014.05.027] [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: 11/28/2022]
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Vorkapic E, Lundberg A, Wågsäter D, Eriksson P. Trif deficiency reduces the inflammatory response of angiotensin ii-induced abdominal aortic aneurysm. Atherosclerosis 2014. [DOI: 10.1016/j.atherosclerosis.2014.05.185] [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: 10/25/2022]
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Bergström I, Lundberg A, Backteman K, Ernerudh J, Jonasson L. CD8+CD56+ T cells that accumulate in patients with coronary artery disease are characterized by a pro-inflammatory cytokine profile. Atherosclerosis 2014. [DOI: 10.1016/j.atherosclerosis.2014.05.225] [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: 10/25/2022]
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Grotzinger JP, Sumner DY, Kah LC, Stack K, Gupta S, Edgar L, Rubin D, Lewis K, Schieber J, Mangold N, Milliken R, Conrad PG, DesMarais D, Farmer J, Siebach K, Calef F, Hurowitz J, McLennan SM, Ming D, Vaniman D, Crisp J, Vasavada A, Edgett KS, Malin M, Blake D, Gellert R, Mahaffy P, Wiens RC, Maurice S, Grant JA, Wilson S, Anderson RC, Beegle L, Arvidson R, Hallet B, Sletten RS, Rice M, Bell J, Griffes J, Ehlmann B, Anderson RB, Bristow TF, Dietrich WE, Dromart G, Eigenbrode J, Fraeman A, Hardgrove C, Herkenhoff K, Jandura L, Kocurek G, Lee S, Leshin LA, Leveille R, Limonadi D, Maki J, McCloskey S, Meyer M, Minitti M, Newsom H, Oehler D, Okon A, Palucis M, Parker T, Rowland S, Schmidt M, Squyres S, Steele A, Stolper E, Summons R, Treiman A, Williams R, Yingst A, Team MS, Kemppinen O, Bridges N, Johnson JR, Cremers D, Godber A, Wadhwa M, Wellington D, McEwan I, Newman C, Richardson M, Charpentier A, Peret L, King P, Blank J, Weigle G, Li S, Robertson K, Sun V, Baker M, Edwards C, Farley K, Miller H, Newcombe M, Pilorget C, Brunet C, Hipkin V, Leveille R, Marchand G, Sanchez PS, Favot L, Cody G, Fluckiger L, Lees D, Nefian A, Martin M, Gailhanou M, Westall F, Israel G, Agard C, Baroukh J, Donny C, Gaboriaud A, Guillemot P, Lafaille V, Lorigny E, Paillet A, Perez R, Saccoccio M, Yana C, Armiens-Aparicio C, Rodriguez JC, Blazquez IC, Gomez FG, Gomez-Elvira J, Hettrich S, Malvitte AL, Jimenez MM, Martinez-Frias J, Martin-Soler J, Martin-Torres FJ, Jurado AM, Mora-Sotomayor L, Caro GM, Lopez SN, Peinado-Gonzalez V, Pla-Garcia J, Manfredi JAR, Romeral-Planello JJ, Fuentes SAS, Martinez ES, Redondo JT, Urqui-O'Callaghan R, Mier MPZ, Chipera S, Lacour JL, Mauchien P, Sirven JB, Manning H, Fairen A, Hayes A, Joseph J, Sullivan R, Thomas P, Dupont A, Lundberg A, Melikechi N, Mezzacappa A, DeMarines J, Grinspoon D, Reitz G, Prats B, Atlaskin E, Genzer M, Harri AM, Haukka H, Kahanpaa H, Kauhanen J, Paton M, Polkko J, Schmidt W, Siili T, Fabre C, Wray J, Wilhelm MB, Poitrasson F, Patel K, Gorevan S, Indyk S, Paulsen G, Bish D, Gondet B, Langevin Y, Geffroy C, Baratoux D, Berger G, Cros A, d'Uston C, Forni O, Gasnault O, Lasue J, Lee QM, Meslin PY, Pallier E, Parot Y, Pinet P, Schroder S, Toplis M, Lewin E, Brunner W, Heydari E, Achilles C, Sutter B, Cabane M, Coscia D, Szopa C, Robert F, Sautter V, Le Mouelic S, Nachon M, Buch A, Stalport F, Coll P, Francois P, Raulin F, Teinturier S, Cameron J, Clegg S, Cousin A, DeLapp D, Dingler R, Jackson RS, Johnstone S, Lanza N, Little C, Nelson T, Williams RB, Jones A, Kirkland L, Baker B, Cantor B, Caplinger M, Davis S, Duston B, Fay D, Harker D, Herrera P, Jensen E, Kennedy MR, Krezoski G, Krysak D, Lipkaman L, McCartney E, McNair S, Nixon B, Posiolova L, Ravine M, Salamon A, Saper L, Stoiber K, Supulver K, Van Beek J, Van Beek T, Zimdar R, French KL, Iagnemma K, Miller K, Goesmann F, Goetz W, Hviid S, Johnson M, Lefavor M, Lyness E, Breves E, Dyar MD, Fassett C, Edwards L, Haberle R, Hoehler T, Hollingsworth J, Kahre M, Keely L, McKay C, Bleacher L, Brinckerhoff W, Choi D, Dworkin JP, Floyd M, Freissinet C, Garvin J, Glavin D, Harpold D, Martin DK, McAdam A, Pavlov A, Raaen E, Smith MD, Stern J, Tan F, Trainer M, Posner A, Voytek M, Aubrey A, Behar A, Blaney D, Brinza D, Christensen L, DeFlores L, Feldman J, Feldman S, Flesch G, Jun I, Keymeulen D, Mischna M, Morookian JM, Pavri B, Schoppers M, Sengstacken A, Simmonds JJ, Spanovich N, Juarez MDLT, Webster CR, Yen A, Archer PD, Cucinotta F, Jones JH, Morris RV, Niles P, Rampe E, Nolan T, Fisk M, Radziemski L, Barraclough B, Bender S, Berman D, Dobrea EN, Tokar R, Cleghorn T, Huntress W, Manhes G, Hudgins J, Olson T, Stewart N, Sarrazin P, Vicenzi E, Bullock M, Ehresmann B, Hamilton V, Hassler D, Peterson J, Rafkin S, Zeitlin C, Fedosov F, Golovin D, Karpushkina N, Kozyrev A, Litvak M, Malakhov A, Mitrofanov I, Mokrousov M, Nikiforov S, Prokhorov V, Sanin A, Tretyakov V, Varenikov A, Vostrukhin A, Kuzmin R, Clark B, Wolff M, Botta O, Drake D, Bean K, Lemmon M, Schwenzer SP, Lee EM, Sucharski R, Hernandez MADP, Avalos JJB, Ramos M, Kim MH, Malespin C, Plante I, Muller JP, Navarro-Gonzalez R, Ewing R, Boynton W, Downs R, Fitzgibbon M, Harshman K, Morrison S, Kortmann O, Williams A, Lugmair G, Wilson MA, Jakosky B, Balic-Zunic T, Frydenvang J, Jensen JK, Kinch K, Koefoed A, Madsen MB, Stipp SLS, Boyd N, Campbell JL, Perrett G, Pradler I, VanBommel S, Jacob S, Owen T, Savijarvi H, Boehm E, Bottcher S, Burmeister S, Guo J, Kohler J, Garcia CM, Mueller-Mellin R, Wimmer-Schweingruber R, Bridges JC, McConnochie T, Benna M, Franz H, Bower H, Brunner A, Blau H, Boucher T, Carmosino M, Atreya S, Elliott H, Halleaux D, Renno N, Wong M, Pepin R, Elliott B, Spray J, Thompson L, Gordon S, Ollila A, Williams J, Vasconcelos P, Bentz J, Nealson K, Popa R, Moersch J, Tate C, Day M, Francis R, McCullough E, Cloutis E, ten Kate IL, Scholes D, Slavney S, Stein T, Ward J, Berger J, Moores JE. A Habitable Fluvio-Lacustrine Environment at Yellowknife Bay, Gale Crater, Mars. Science 2013; 343:1242777. [DOI: 10.1126/science.1242777] [Citation(s) in RCA: 578] [Impact Index Per Article: 52.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Vaniman DT, Bish DL, Ming DW, Bristow TF, Morris RV, Blake DF, Chipera SJ, Morrison SM, Treiman AH, Rampe EB, Rice M, Achilles CN, Grotzinger JP, McLennan SM, Williams J, Bell JF, Newsom HE, Downs RT, Maurice S, Sarrazin P, Yen AS, Morookian JM, Farmer JD, Stack K, Milliken RE, Ehlmann BL, Sumner DY, Berger G, Crisp JA, Hurowitz JA, Anderson R, Des Marais DJ, Stolper EM, Edgett KS, Gupta S, Spanovich N, Agard C, Alves Verdasca JA, Anderson R, Archer D, Armiens-Aparicio C, Arvidson R, Atlaskin E, Atreya S, Aubrey A, Baker B, Baker M, Balic-Zunic T, Baratoux D, Baroukh J, Barraclough B, Bean K, Beegle L, Behar A, Bender S, Benna M, Bentz J, Berger J, Berman D, Blanco Avalos JJ, Blaney D, Blank J, Blau H, Bleacher L, Boehm E, Botta O, Bottcher S, Boucher T, Bower H, Boyd N, Boynton B, Breves E, Bridges J, Bridges N, Brinckerhoff W, Brinza D, Brunet C, Brunner A, Brunner W, Buch A, Bullock M, Burmeister S, Cabane M, Calef F, Cameron J, Campbell JI, Cantor B, Caplinger M, Caride Rodriguez J, Carmosino M, Carrasco Blazquez I, Charpentier A, Choi D, Clark B, Clegg S, Cleghorn T, Cloutis E, Cody G, Coll P, Conrad P, Coscia D, Cousin A, Cremers D, Cros A, Cucinotta F, d'Uston C, Davis S, Day MK, de la Torre Juarez M, DeFlores L, DeLapp D, DeMarines J, Dietrich W, Dingler R, Donny C, Drake D, Dromart G, Dupont A, Duston B, Dworkin J, Dyar MD, Edgar L, Edwards C, Edwards L, Ehresmann B, Eigenbrode J, Elliott B, Elliott H, Ewing R, Fabre C, Fairen A, Farley K, Fassett C, Favot L, Fay D, Fedosov F, Feldman J, Feldman S, Fisk M, Fitzgibbon M, Flesch G, Floyd M, Fluckiger L, Forni O, Fraeman A, Francis R, Francois P, Franz H, Freissinet C, French KL, Frydenvang J, Gaboriaud A, Gailhanou M, Garvin J, Gasnault O, Geffroy C, Gellert R, Genzer M, Glavin D, Godber A, Goesmann F, Goetz W, Golovin D, Gomez Gomez F, Gomez-Elvira J, Gondet B, Gordon S, Gorevan S, Grant J, Griffes J, Grinspoon D, Guillemot P, Guo J, Guzewich S, Haberle R, Halleaux D, Hallet B, Hamilton V, Hardgrove C, Harker D, Harpold D, Harri AM, Harshman K, Hassler D, Haukka H, Hayes A, Herkenhoff K, Herrera P, Hettrich S, Heydari E, Hipkin V, Hoehler T, Hollingsworth J, Hudgins J, Huntress W, Hviid S, Iagnemma K, Indyk S, Israel G, Jackson R, Jacob S, Jakosky B, Jensen E, Jensen JK, Johnson J, Johnson M, Johnstone S, Jones A, Jones J, Joseph J, Jun I, Kah L, Kahanpaa H, Kahre M, Karpushkina N, Kasprzak W, Kauhanen J, Keely L, Kemppinen O, Keymeulen D, Kim MH, Kinch K, King P, Kirkland L, Kocurek G, Koefoed A, Kohler J, Kortmann O, Kozyrev A, Krezoski J, Krysak D, Kuzmin R, Lacour JL, Lafaille V, Langevin Y, Lanza N, Lasue J, Le Mouelic S, Lee EM, Lee QM, Lees D, Lefavor M, Lemmon M, Malvitte AL, Leshin L, Leveille R, Lewin-Carpintier E, Lewis K, Li S, Lipkaman L, Little C, Litvak M, Lorigny E, Lugmair G, Lundberg A, Lyness E, Madsen M, Mahaffy P, Maki J, Malakhov A, Malespin C, Malin M, Mangold N, Manhes G, Manning H, Marchand G, Marin Jimenez M, Martin Garcia C, Martin D, Martin M, Martinez-Frias J, Martin-Soler J, Martin-Torres FJ, Mauchien P, McAdam A, McCartney E, McConnochie T, McCullough E, McEwan I, McKay C, McNair S, Melikechi N, Meslin PY, Meyer M, Mezzacappa A, Miller H, Miller K, Minitti M, Mischna M, Mitrofanov I, Moersch J, Mokrousov M, Molina Jurado A, Moores J, Mora-Sotomayor L, Mueller-Mellin R, Muller JP, Munoz Caro G, Nachon M, Navarro Lopez S, Navarro-Gonzalez R, Nealson K, Nefian A, Nelson T, Newcombe M, Newman C, Nikiforov S, Niles P, Nixon B, Noe Dobrea E, Nolan T, Oehler D, Ollila A, Olson T, Owen T, de Pablo Hernandez MA, Paillet A, Pallier E, Palucis M, Parker T, Parot Y, Patel K, Paton M, Paulsen G, Pavlov A, Pavri B, Peinado-Gonzalez V, Pepin R, Peret L, Perez R, Perrett G, Peterson J, Pilorget C, Pinet P, Pla-Garcia J, Plante I, Poitrasson F, Polkko J, Popa R, Posiolova L, Posner A, Pradler I, Prats B, Prokhorov V, Purdy SW, Raaen E, Radziemski L, Rafkin S, Ramos M, Raulin F, Ravine M, Reitz G, Renno N, Richardson M, Robert F, Robertson K, Rodriguez Manfredi JA, Romeral-Planello JJ, Rowland S, Rubin D, Saccoccio M, Salamon A, Sandoval J, Sanin A, Sans Fuentes SA, Saper L, Sautter V, Savijarvi H, Schieber J, Schmidt M, Schmidt W, Scholes DD, Schoppers M, Schroder S, Schwenzer S, Sebastian Martinez E, Sengstacken A, Shterts R, Siebach K, Siili T, Simmonds J, Sirven JB, Slavney S, Sletten R, Smith M, Sobron Sanchez P, Spray J, Squyres S, Stalport F, Steele A, Stein T, Stern J, Stewart N, Stipp SLS, Stoiber K, Sucharski B, Sullivan R, Summons R, Sun V, Supulver K, Sutter B, Szopa C, Tan F, Tate C, Teinturier S, ten Kate I, Thomas P, Thompson L, Tokar R, Toplis M, Torres Redondo J, Trainer M, Tretyakov V, Urqui-O'Callaghan R, Van Beek J, Van Beek T, VanBommel S, Varenikov A, Vasavada A, Vasconcelos P, Vicenzi E, Vostrukhin A, Voytek M, Wadhwa M, Ward J, Webster C, Weigle E, Wellington D, Westall F, Wiens RC, Wilhelm MB, Williams A, Williams R, Williams RBM, Wilson M, Wimmer-Schweingruber R, Wolff M, Wong M, Wray J, Wu M, Yana C, Yingst A, Zeitlin C, Zimdar R, Zorzano Mier MP. Mineralogy of a Mudstone at Yellowknife Bay, Gale Crater, Mars. Science 2013; 343:1243480. [DOI: 10.1126/science.1243480] [Citation(s) in RCA: 433] [Impact Index Per Article: 39.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Leshin LA, Mahaffy PR, Webster CR, Cabane M, Coll P, Conrad PG, Archer PD, Atreya SK, Brunner AE, Buch A, Eigenbrode JL, Flesch GJ, Franz HB, Freissinet C, Glavin DP, McAdam AC, Miller KE, Ming DW, Morris RV, Navarro-Gonzalez R, Niles PB, Owen T, Pepin RO, Squyres S, Steele A, Stern JC, Summons RE, Sumner DY, Sutter B, Szopa C, Teinturier S, Trainer MG, Wray JJ, Grotzinger JP, Kemppinen O, Bridges N, Johnson JR, Minitti M, Cremers D, Bell JF, Edgar L, Farmer J, Godber A, Wadhwa M, Wellington D, McEwan I, Newman C, Richardson M, Charpentier A, Peret L, King P, Blank J, Weigle G, Schmidt M, Li S, Milliken R, Robertson K, Sun V, Baker M, Edwards C, Ehlmann B, Farley K, Griffes J, Miller H, Newcombe M, Pilorget C, Rice M, Siebach K, Stack K, Stolper E, Brunet C, Hipkin V, Leveille R, Marchand G, Sanchez PS, Favot L, Cody G, Fluckiger L, Lees D, Nefian A, Martin M, Gailhanou M, Westall F, Israel G, Agard C, Baroukh J, Donny C, Gaboriaud A, Guillemot P, Lafaille V, Lorigny E, Paillet A, Perez R, Saccoccio M, Yana C, Armiens-Aparicio C, Rodriguez JC, Blazquez IC, Gomez FG, Gomez-Elvira J, Hettrich S, Malvitte AL, Jimenez MM, Martinez-Frias J, Martin-Soler J, Martin-Torres FJ, Jurado AM, Mora-Sotomayor L, Caro GM, Lopez SN, Peinado-Gonzalez V, Pla-Garcia J, Manfredi JAR, Romeral-Planello JJ, Fuentes SAS, Martinez ES, Redondo JT, Urqui-O'Callaghan R, Mier MPZ, Chipera S, Lacour JL, Mauchien P, Sirven JB, Manning H, Fairen A, Hayes A, Joseph J, Sullivan R, Thomas P, Dupont A, Lundberg A, Melikechi N, Mezzacappa A, DeMarines J, Grinspoon D, Reitz G, Prats B, Atlaskin E, Genzer M, Harri AM, Haukka H, Kahanpaa H, Kauhanen J, Kemppinen O, Paton M, Polkko J, Schmidt W, Siili T, Fabre C, Wilhelm MB, Poitrasson F, Patel K, Gorevan S, Indyk S, Paulsen G, Gupta S, Bish D, Schieber J, Gondet B, Langevin Y, Geffroy C, Baratoux D, Berger G, Cros A, d'Uston C, Forni O, Gasnault O, Lasue J, Lee QM, Maurice S, Meslin PY, Pallier E, Parot Y, Pinet P, Schroder S, Toplis M, Lewin E, Brunner W, Heydari E, Achilles C, Oehler D, Coscia D, Israel G, Dromart G, Robert F, Sautter V, Le Mouelic S, Mangold N, Nachon M, Stalport F, Francois P, Raulin F, Cameron J, Clegg S, Cousin A, DeLapp D, Dingler R, Jackson RS, Johnstone S, Lanza N, Little C, Nelson T, Wiens RC, Williams RB, Jones A, Kirkland L, Treiman A, Baker B, Cantor B, Caplinger M, Davis S, Duston B, Edgett K, Fay D, Hardgrove C, Harker D, Herrera P, Jensen E, Kennedy MR, Krezoski G, Krysak D, Lipkaman L, Malin M, McCartney E, McNair S, Nixon B, Posiolova L, Ravine M, Salamon A, Saper L, Stoiber K, Supulver K, Van Beek J, Van Beek T, Zimdar R, French KL, Iagnemma K, Goesmann F, Goetz W, Hviid S, Johnson M, Lefavor M, Lyness E, Breves E, Dyar MD, Fassett C, Blake DF, Bristow T, DesMarais D, Edwards L, Haberle R, Hoehler T, Hollingsworth J, Kahre M, Keely L, McKay C, Wilhelm MB, Bleacher L, Brinckerhoff W, Choi D, Dworkin JP, Floyd M, Garvin J, Harpold D, Jones A, Martin DK, Pavlov A, Raaen E, Smith MD, Tan F, Meyer M, Posner A, Voytek M, Anderson RC, Aubrey A, Beegle LW, Behar A, Blaney D, Brinza D, Calef F, Christensen L, Crisp JA, DeFlores L, Ehlmann B, Feldman J, Feldman S, Hurowitz J, Jun I, Keymeulen D, Maki J, Mischna M, Morookian JM, Parker T, Pavri B, Schoppers M, Sengstacken A, Simmonds JJ, Spanovich N, Juarez MDLT, Vasavada AR, Yen A, Cucinotta F, Jones JH, Rampe E, Nolan T, Fisk M, Radziemski L, Barraclough B, Bender S, Berman D, Dobrea EN, Tokar R, Vaniman D, Williams RME, Yingst A, Lewis K, Cleghorn T, Huntress W, Manhes G, Hudgins J, Olson T, Stewart N, Sarrazin P, Grant J, Vicenzi E, Wilson SA, Bullock M, Ehresmann B, Hamilton V, Hassler D, Peterson J, Rafkin S, Zeitlin C, Fedosov F, Golovin D, Karpushkina N, Kozyrev A, Litvak M, Malakhov A, Mitrofanov I, Mokrousov M, Nikiforov S, Prokhorov V, Sanin A, Tretyakov V, Varenikov A, Vostrukhin A, Kuzmin R, Clark B, Wolff M, McLennan S, Botta O, Drake D, Bean K, Lemmon M, Schwenzer SP, Anderson RB, Herkenhoff K, Lee EM, Sucharski R, Hernandez MADP, Avalos JJB, Ramos M, Kim MH, Malespin C, Plante I, Muller JP, Ewing R, Boynton W, Downs R, Fitzgibbon M, Harshman K, Morrison S, Dietrich W, Kortmann O, Palucis M, Williams A, Lugmair G, Wilson MA, Rubin D, Jakosky B, Balic-Zunic T, Frydenvang J, Jensen JK, Kinch K, Koefoed A, Madsen MB, Stipp SLS, Boyd N, Campbell JL, Gellert R, Perrett G, Pradler I, VanBommel S, Jacob S, Rowland S, Atlaskin E, Savijarvi H, Boehm E, Bottcher S, Burmeister S, Guo J, Kohler J, Garcia CM, Mueller-Mellin R, Wimmer-Schweingruber R, Bridges JC, McConnochie T, Benna M, Bower H, Blau H, Boucher T, Carmosino M, Elliott H, Halleaux D, Renno N, Wong M, Elliott B, Spray J, Thompson L, Gordon S, Newsom H, Ollila A, Williams J, Vasconcelos P, Bentz J, Nealson K, Popa R, Kah LC, Moersch J, Tate C, Day M, Kocurek G, Hallet B, Sletten R, Francis R, McCullough E, Cloutis E, ten Kate IL, Kuzmin R, Arvidson R, Fraeman A, Scholes D, Slavney S, Stein T, Ward J, Berger J, Moores JE. Volatile, Isotope, and Organic Analysis of Martian Fines with the Mars Curiosity Rover. Science 2013; 341:1238937. [DOI: 10.1126/science.1238937] [Citation(s) in RCA: 327] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Mahaffy PR, Webster CR, Atreya SK, Franz H, Wong M, Conrad PG, Harpold D, Jones JJ, Leshin LA, Manning H, Owen T, Pepin RO, Squyres S, Trainer M, Kemppinen O, Bridges N, Johnson JR, Minitti M, Cremers D, Bell JF, Edgar L, Farmer J, Godber A, Wadhwa M, Wellington D, McEwan I, Newman C, Richardson M, Charpentier A, Peret L, King P, Blank J, Weigle G, Schmidt M, Li S, Milliken R, Robertson K, Sun V, Baker M, Edwards C, Ehlmann B, Farley K, Griffes J, Grotzinger J, Miller H, Newcombe M, Pilorget C, Rice M, Siebach K, Stack K, Stolper E, Brunet C, Hipkin V, Leveille R, Marchand G, Sanchez PS, Favot L, Cody G, Steele A, Fluckiger L, Lees D, Nefian A, Martin M, Gailhanou M, Westall F, Israel G, Agard C, Baroukh J, Donny C, Gaboriaud A, Guillemot P, Lafaille V, Lorigny E, Paillet A, Perez R, Saccoccio M, Yana C, Armiens-Aparicio C, Rodriguez JC, Blazquez IC, Gomez FG, Gomez-Elvira J, Hettrich S, Malvitte AL, Jimenez MM, Martinez-Frias J, Martin-Soler J, Martin-Torres FJ, Jurado AM, Mora-Sotomayor L, Caro GM, Lopez SN, Peinado-Gonzalez V, Pla-Garcia J, Manfredi JAR, Romeral-Planello JJ, Fuentes SAS, Martinez ES, Redondo JT, Urqui-O'Callaghan R, Mier MPZ, Chipera S, Lacour JL, Mauchien P, Sirven JB, Fairen A, Hayes A, Joseph J, Sullivan R, Thomas P, Dupont A, Lundberg A, Melikechi N, Mezzacappa A, DeMarines J, Grinspoon D, Reitz G, Prats B, Atlaskin E, Genzer M, Harri AM, Haukka H, Kahanpaa H, Kauhanen J, Kemppinen O, Paton M, Polkko J, Schmidt W, Siili T, Fabre C, Wray J, Wilhelm MB, Poitrasson F, Patel K, Gorevan S, Indyk S, Paulsen G, Gupta S, Bish D, Schieber J, Gondet B, Langevin Y, Geffroy C, Baratoux D, Berger G, Cros A, d'Uston C, Forni O, Gasnault O, Lasue J, Lee QM, Maurice S, Meslin PY, Pallier E, Parot Y, Pinet P, Schroder S, Toplis M, Lewin E, Brunner W, Heydari E, Achilles C, Oehler D, Sutter B, Cabane M, Coscia D, Israel G, Szopa C, Dromart G, Robert F, Sautter V, Le Mouelic S, Mangold N, Nachon M, Buch A, Stalport F, Coll P, Francois P, Raulin F, Teinturier S, Cameron J, Clegg S, Cousin A, DeLapp D, Dingler R, Jackson RS, Johnstone S, Lanza N, Little C, Nelson T, Wiens RC, Williams RB, Jones A, Kirkland L, Treiman A, Baker B, Cantor B, Caplinger M, Davis S, Duston B, Edgett K, Fay D, Hardgrove C, Harker D, Herrera P, Jensen E, Kennedy MR, Krezoski G, Krysak D, Lipkaman L, Malin M, McCartney E, McNair S, Nixon B, Posiolova L, Ravine M, Salamon A, Saper L, Stoiber K, Supulver K, Van Beek J, Van Beek T, Zimdar R, French KL, Iagnemma K, Miller K, Summons R, Goesmann F, Goetz W, Hviid S, Johnson M, Lefavor M, Lyness E, Breves E, Dyar MD, Fassett C, Blake DF, Bristow T, DesMarais D, Edwards L, Haberle R, Hoehler T, Hollingsworth J, Kahre M, Keely L, McKay C, Wilhelm MB, Bleacher L, Brinckerhoff W, Choi D, Dworkin JP, Eigenbrode J, Floyd M, Freissinet C, Garvin J, Glavin D, Jones A, Martin DK, McAdam A, Pavlov A, Raaen E, Smith MD, Stern J, Tan F, Meyer M, Posner A, Voytek M, Anderson RC, Aubrey A, Beegle LW, Behar A, Blaney D, Brinza D, Calef F, Christensen L, Crisp JA, DeFlores L, Ehlmann B, Feldman J, Feldman S, Flesch G, Hurowitz J, Jun I, Keymeulen D, Maki J, Mischna M, Morookian JM, Parker T, Pavri B, Schoppers M, Sengstacken A, Simmonds JJ, Spanovich N, Juarez MDLT, Vasavada AR, Yen A, Archer PD, Cucinotta F, Ming D, Morris RV, Niles P, Rampe E, Nolan T, Fisk M, Radziemski L, Barraclough B, Bender S, Berman D, Dobrea EN, Tokar R, Vaniman D, Williams RME, Yingst A, Lewis K, Cleghorn T, Huntress W, Manhes G, Hudgins J, Olson T, Stewart N, Sarrazin P, Grant J, Vicenzi E, Wilson SA, Bullock M, Ehresmann B, Hamilton V, Hassler D, Peterson J, Rafkin S, Zeitlin C, Fedosov F, Golovin D, Karpushkina N, Kozyrev A, Litvak M, Malakhov A, Mitrofanov I, Mokrousov M, Nikiforov S, Prokhorov V, Sanin A, Tretyakov V, Varenikov A, Vostrukhin A, Kuzmin R, Clark B, Wolff M, McLennan S, Botta O, Drake D, Bean K, Lemmon M, Schwenzer SP, Anderson RB, Herkenhoff K, Lee EM, Sucharski R, Hernandez MADP, Avalos JJB, Ramos M, Kim MH, Malespin C, Plante I, Muller JP, Navarro-Gonzalez R, Ewing R, Boynton W, Downs R, Fitzgibbon M, Harshman K, Morrison S, Dietrich W, Kortmann O, Palucis M, Sumner DY, Williams A, Lugmair G, Wilson MA, Rubin D, Jakosky B, Balic-Zunic T, Frydenvang J, Jensen JK, Kinch K, Koefoed A, Madsen MB, Stipp SLS, Boyd N, Campbell JL, Gellert R, Perrett G, Pradler I, VanBommel S, Jacob S, Rowland S, Atlaskin E, Savijarvi H, Boehm E, Bottcher S, Burmeister S, Guo J, Kohler J, Garcia CM, Mueller-Mellin R, Wimmer-Schweingruber R, Bridges JC, McConnochie T, Benna M, Bower H, Brunner A, Blau H, Boucher T, Carmosino M, Elliott H, Halleaux D, Renno N, Elliott B, Spray J, Thompson L, Gordon S, Newsom H, Ollila A, Williams J, Vasconcelos P, Bentz J, Nealson K, Popa R, Kah LC, Moersch J, Tate C, Day M, Kocurek G, Hallet B, Sletten R, Francis R, McCullough E, Cloutis E, ten Kate IL, Kuzmin R, Arvidson R, Fraeman A, Scholes D, Slavney S, Stein T, Ward J, Berger J, Moores JE. Abundance and Isotopic Composition of Gases in the Martian Atmosphere from the Curiosity Rover. Science 2013; 341:263-6. [PMID: 23869014 DOI: 10.1126/science.1237966] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Lundberg A, Dahlquist L. Unaccompanied Children Seeking Asylum in Sweden: Living Conditions from a Child-Centred Perspective. Refugee Survey Quarterly 2012. [DOI: 10.1093/rsq/hds003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Sköldenberg OG, Salemyr MO, Bodén HS, Lundberg A, Ahl TE, Adolphson PY. A new uncemented hydroxyapatite-coated femoral component for the treatment of femoral neck fractures. ACTA ACUST UNITED AC 2011; 93:665-77. [DOI: 10.1302/0301-620x.93b5.25374] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Our aim in this pilot study was to evaluate the fixation of, the bone remodelling around, and the clinical outcome after surgery of a new, uncemented, fully hydroxyapatite-coated, collared and tapered femoral component, designed specifically for elderly patients with a fracture of the femoral neck. We enrolled 50 patients, of at least 70 years of age, with an acute displaced fracture of the femoral neck in this prospective single-series study. They received a total hip replacement using the new component and were followed up regularly for two years. Fixation was evaluated by radiostereometric analysis and bone remodelling by dual-energy x-ray absorptiometry. Hip function and the health-related quality of life were assessed using the Harris hip score and the EuroQol-5D. Up to six weeks post-operatively there was a mean subsidence of 0.2 mm (−2.1 to +0.5) and a retroversion of a mean of 1.2° (−8.2° to +1.5°). No component migrated after three months. The patients had a continuous loss of peri-prosthetic bone which amounted to a mean of 16% (−49% to +10%) at two years. The mean Harris hip score was 82 (51 to 100) after two years. The two-year results from this pilot study indicate that this new, uncemented femoral component can be used for elderly patients with osteoporotic fractures of the femoral neck.
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Affiliation(s)
- O. G. Sköldenberg
- Department of Clinical Sciences, Division of Orthopaedics, Karolinska Institute at Danderyd Hospital, S-18288 Stockholm, Sweden
| | - M. O. Salemyr
- Department of Clinical Sciences, Division of Orthopaedics, Karolinska Institute at Danderyd Hospital, S-18288 Stockholm, Sweden
| | - H. S. Bodén
- Department of Clinical Sciences, Division of Orthopaedics, Karolinska Institute at Danderyd Hospital, S-18288 Stockholm, Sweden
| | - A. Lundberg
- Department of Clinical Science, Intervention and Technology, Karolinska Institute, S-17177, Stockholm, Sweden
| | - T. E. Ahl
- Department of Clinical Sciences, Division of Orthopaedics, Karolinska Institute at Danderyd Hospital, S-18288 Stockholm, Sweden
| | - P. Y. Adolphson
- Department of Clinical Sciences, Division of Orthopaedics, Karolinska Institute at Danderyd Hospital, S-18288 Stockholm, Sweden
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Potthast W, Brüggemann GP, Lundberg A, Arndt A. Relative movements between the tibia and femur induced by external plantar shocks are controlled by muscle forces in vivo. J Biomech 2011; 44:1144-8. [PMID: 21310419 DOI: 10.1016/j.jbiomech.2011.01.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2010] [Revised: 01/18/2011] [Accepted: 01/20/2011] [Indexed: 11/18/2022]
Abstract
The purpose of this study was to investigate the role of muscle activation on the relative motion between tibia and femur. Impacts were initiated under the heels of four volunteers in three different activation levels of muscles crossing the extended knee joint: 0%, 30% and 60% of previously performed maximal voluntary isometric contractions. Impact forces were measured and tibial and femoral accelerations and displacements were determined by means of accelerometry. The accelerometers were mounted on the protruding ends of intracortical pins, inserted into the distal aspect of the femur and proximal aspect of the tibia. Under the 0%-condition the impact force (475±64N) led to 2.3±1.2mm knee compression and to 2.4±1.9mm medio-lateral and 4.4±1.1mm antero-posterior shear. The impact forces increased significantly with higher activation levels (619±33N (30%), 643±147N (60%)), while the knee compression (1.5±1.2, 1.4±1.3mm) and both medio-lateral shear (1.8±1.4, 1.5±1.1mm) and antero-posterior shear (2.6±1.3, 1.5±1.1mm) were significantly reduced. This study indicated that muscles are effective in controlling the relative motion between tibia and femur when the knee is subjected to external forces.
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Affiliation(s)
- W Potthast
- German Sport University Cologne, Institute of Biomechanics and Orthopaedics, 50933 Cologne, Germany.
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Sjögren YM, Tomicic S, Lundberg A, Böttcher MF, Björkstén B, Sverremark-Ekström E, Jenmalm MC. Influence of early gut microbiota on the maturation of childhood mucosal and systemic immune responses. Clin Exp Allergy 2009; 39:1842-51. [PMID: 19735274 DOI: 10.1111/j.1365-2222.2009.03326.x] [Citation(s) in RCA: 228] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
INTRODUCTION Among sensitized infants, those with high, as compared with low levels, of salivary secretory IgA (SIgA) are less likely to develop allergic symptoms. Also, early colonization with certain gut microbiota, e.g. Lactobacilli and Bifidobacterium species, might be associated with less allergy development. Although animal and in vitro studies emphasize the role of the commensal gut microbiota in the development of the immune system, the influence of the gut microbiota on immune development in infants is unclear. OBJECTIVE To assess whether early colonization with certain gut microbiota species associates with mucosal and systemic immune responses i.e. salivary SIgA and the spontaneous Toll-like receptor (TLR) 2 and TLR4 mRNA expression and lipopolysaccharide (LPS)-induced cytokine/chemokine responses in peripheral blood mononuclear cells (PBMCs). METHODS Fecal samples were collected at 1 week, 1 month and 2 months after birth from 64 Swedish infants, followed prospectively up to 5 years of age. Bacterial DNA was analysed with real-time PCR using primers binding to Clostridium difficile, four species of bifidobacteria, two lactobacilli groups and Bacteroides fragilis. Saliva was collected at age 6 and 12 months and at 2 and 5 years and SIgA was measured with ELISA. The PBMCs, collected 12 months after birth, were analysed for TLR2 and TLR4 mRNA expression with real-time PCR. Further, the PBMCs were stimulated with LPS, and cytokine/chemokine responses were measured with Luminex. RESULTS The number of Bifidobacterium species in the early fecal samples correlated significantly with the total levels of salivary SIgA at 6 months. Early colonization with Bifidobacterium species, lactobacilli groups or C. difficile did not influence TLR2 and TLR4 expression in PBMCs. However, PBMCs from infants colonized early with high amounts of Bacteroides fragilis expressed lower levels of TLR4 mRNA spontaneously. Furthermore, LPS-induced production of inflammatory cytokines and chemokines, e.g. IL-6 and CCL4 (MIP-1 beta), was inversely correlated to the relative amounts of Bacteroides fragilis in the early fecal samples. CONCLUSION Bifidobacterial diversity may enhance the maturation of the mucosal SIgA system and early intense colonization with Bacteroides fragilis might down-regulate LPS responsiveness in infancy.
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Affiliation(s)
- Y M Sjögren
- Department of Immunology, Wenner-Gren Institute, Stockholm University, Stockholm, Sweden.
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Lundberg A, Gerdes N, Yang H, Tracey K, Hansson G. Abstract: P677 INHIBITION OF HMGB1 PROMOTES EXPERIMENTAL ATHEROSCLEROSIS. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)70845-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Lundin F, Tisell A, Leinhard O, Lundberg A, Tullberg M, Wikkelsö C, Leijon G. O.051 Magnetic Resonance Spectroscopy of INPH-metabolism in the frontal deep white matter and in thalamus. Clin Neurol Neurosurg 2008. [DOI: 10.1016/s0303-8467(08)70056-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Lundgren P, Nester C, Liu A, Arndt A, Jones R, Stacoff A, Wolf P, Lundberg A. Invasive in vivo measurement of rear-, mid- and forefoot motion during walking. Gait Posture 2008; 28:93-100. [PMID: 18096389 DOI: 10.1016/j.gaitpost.2007.10.009] [Citation(s) in RCA: 193] [Impact Index Per Article: 12.1] [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: 04/27/2007] [Revised: 10/12/2007] [Accepted: 10/22/2007] [Indexed: 02/02/2023]
Abstract
The aim of this work was to use bone anchored external markers to describe the kinematics of the tibia, fibula, talus, calcaneus, navicular, cuboid, medial cuneiform, first and fifth metatarsals during gait. Data were collected from six subjects. There was motion at all the joints studied. Movement between the talus and the tibia showed the expected predominance of sagittal plane motion, but the talocalcaneal joint displayed greater variability than expected in its motion. Movement at the talonavicular joint was greater than at the talocalcaneal joint and motion between the medial cuneiform and navicular was far greater than expected. Motion between the first metatarsal and the medial cuneiform was less than motion between the fifth metatarsal and cuboid. Overall the data demonstrated the complexity of the foot and the importance of the joints distal to the rearfoot in its overall dynamic function.
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Affiliation(s)
- P Lundgren
- Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
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Abstract
The early designs of hip resurfacing implants suffered high rates of early failure, making it impossible to obtain valuable mid-term radiostereophotogrammetric (RSA) results. The metal-on-metal Birmingham Hip Resurfacing arthroplasty has shown promising mid-term results and we present here the first mid-term RSA analysis of a hip resurfacing implant. The analysis was performed in 19 hips at five years post-operatively. The mean acetabular component translation and rotation, and femoral component translation were compared with the previous RSA measurements at two and six months, and one and two years. There was no statistical significance (t-test, p < or = 0.05) between these consecutive movements, indicating the mid-term stability of the implant.
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Affiliation(s)
- R Itayem
- Karolinska Institute, Karolinska, University Hospital, 14186 Stockholm, Sweden.
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Arndt A, Wolf P, Liu A, Nester C, Stacoff A, Jones R, Lundgren P, Lundberg A. Intrinsic foot kinematics measured in vivo during the stance phase of slow running. J Biomech 2007; 40:2672-8. [PMID: 17368465 DOI: 10.1016/j.jbiomech.2006.12.009] [Citation(s) in RCA: 102] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2006] [Accepted: 12/18/2006] [Indexed: 11/21/2022]
Abstract
An accurate kinematic description of the intrinsic articulations of the foot during running has not previously been presented, primarily due to methodological limitations. An invasive method based upon reflective marker arrays mounted on intracortical pins drilled into the bones was used in this study. Four male volunteers participated as subjects. Pins (1.6mm diameter) were inserted under local anaesthetic in the tibia, fibula, calcaneus, talus, navicular, cuboid, medial cuneiform and metatarsals I and V. A 10 camera motion analysis system was used for kinematic data capture and the ground reaction force was simultaneously measured. Segment motion relative to adjacent proximal segments was determined using helical axes projected into the coordinate system of the proximal segment. Coefficients of multiple correlation calculated to determine the strength of association between running style with and without the pins inserted indicated that the subjects had little restriction due to the inserted pins. Individual and mean results were presented for rotations defined in the planes of the proximal segment's coordinate system and showed frontal plane rotation of the talocrural joint (12.2+/-7.1 degrees ), which exceeded that of the subtalar joint (8.9+/-3.2 degrees ). Considerable mobility of the talonavicular joint was found (6.5+/-2.9 degrees , 13.5+/-4.1 degrees and 8.7+/-1.4 degrees in the sagittal, frontal and transverse planes, respectively). Furthermore, little, but non-negligible motion between the fibula and tibia was found (3.3+/-2.4 degrees in the sagittal plane). The presented data are of interest as input for future biomechanical modelling and clinical decision making in particular, concerning joint fusion.
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Affiliation(s)
- A Arndt
- Department of Orthopedic Surgery, Karolinska University Hospital/Huddinge, Stockholm, Sweden.
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Nester C, Jones RK, Liu A, Howard D, Lundberg A, Arndt A, Lundgren P, Stacoff A, Wolf P. Foot kinematics during walking measured using bone and surface mounted markers. J Biomech 2007; 40:3412-23. [PMID: 17631298 DOI: 10.1016/j.jbiomech.2007.05.019] [Citation(s) in RCA: 154] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2007] [Revised: 05/04/2007] [Accepted: 05/15/2007] [Indexed: 10/23/2022]
Abstract
The aim was to compare kinematic data from an experimental foot model comprising four segments ((i) heel, (ii) navicular/cuboid (iii) medial forefoot, (iv) lateral forefoot), to the kinematics of the individual bones comprising each segment. The foot model was represented using two different marker attachment protocols: (a) markers attached directly to the skin; (b) markers attached to rigid plates mounted on the skin. Bone data were collected for the tibia, talus, calcaneus, navicular, cuboid, medial cuneiform and first and fifth metatarsals (n=6). Based on the mean differences between the three data sets during stance, the differences between any two of the three kinematic protocols (i.e. bone vs skin, bone vs plate, skin vs plate) were >3 degrees in only 35% of the data and >5 degrees in only 3.5% of the data. However, the maximum difference between any two of the three protocols during stance was >3 degrees in 100% of the data, >5 degrees in 73% of the data and >8 degrees in 23% of the data. Differences were greatest for motion of the combined navicular/cuboid relative to the calcaneus and the medial forefoot segment relative to the navicular/cuboid. The differences between the data from the skin and plate protocols were consistently smaller than differences between either protocol and the kinematic data for each bone comprising the segment. The pattern of differences between skin and plate protocols and the actual bone motion showed no systematic pattern. It is unlikely that one rigid body foot model and marker attachment approach is always preferable over another.
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Affiliation(s)
- C Nester
- Centre for Rehabilitation and Human Performance Research, Brian Blatchford Building, University of Salford, M66PU, UK.
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Nester C, Jones RK, Liu A, Howard D, Lundberg A, Arndt A, Lundgren P, Stacoff A, Wolf P. FOOT KINEMATICS DURING WALKING MEASURED USING BONE AND SURFACE MOUNTED MARKERS. J Biomech 2007. [DOI: 10.1016/s0021-9290(07)70092-1] [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: 11/27/2022]
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Arndt A, Wolf P, Liu A, Nester C, Stacoff A, Jones R, Lundgren P, Lundberg A. DIFFERENCES IN RANGES OF MOTION IN INTRINSIC FOOT JOINTS DURING WALKING AND RUNNING. J Biomech 2007. [DOI: 10.1016/s0021-9290(07)70091-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: 10/23/2022]
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Stacoff A, Wolf P, Arndt A, Liu A, Nester C, Jones R, Lundgren P, Stüssi E, Lundberg A. POSSIBLE FUNCTIONAL UNITS OF THE HUMAN FOOT. J Biomech 2007. [DOI: 10.1016/s0021-9290(07)70093-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Allen SL, Kolitz JE, Lundberg A, Champagne M, Devost S, Dubon R, Drouin M, Boss MA, Grieshaber CK, Budman DR. Phase I study of amonafide + cytosine arabinoside (AraC) in patients with poor risk acute myeloid leukemia (AML). J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.6602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- S. L. Allen
- North Shore Univ Hosp - NYU Sch of Medicine, Manhasset, NY; Xanthus Life Sciences, Cambridge, MA
| | - J. E. Kolitz
- North Shore Univ Hosp - NYU Sch of Medicine, Manhasset, NY; Xanthus Life Sciences, Cambridge, MA
| | - A. Lundberg
- North Shore Univ Hosp - NYU Sch of Medicine, Manhasset, NY; Xanthus Life Sciences, Cambridge, MA
| | - M. Champagne
- North Shore Univ Hosp - NYU Sch of Medicine, Manhasset, NY; Xanthus Life Sciences, Cambridge, MA
| | - S. Devost
- North Shore Univ Hosp - NYU Sch of Medicine, Manhasset, NY; Xanthus Life Sciences, Cambridge, MA
| | - R. Dubon
- North Shore Univ Hosp - NYU Sch of Medicine, Manhasset, NY; Xanthus Life Sciences, Cambridge, MA
| | - M. Drouin
- North Shore Univ Hosp - NYU Sch of Medicine, Manhasset, NY; Xanthus Life Sciences, Cambridge, MA
| | - M. A. Boss
- North Shore Univ Hosp - NYU Sch of Medicine, Manhasset, NY; Xanthus Life Sciences, Cambridge, MA
| | - C. K. Grieshaber
- North Shore Univ Hosp - NYU Sch of Medicine, Manhasset, NY; Xanthus Life Sciences, Cambridge, MA
| | - D. R. Budman
- North Shore Univ Hosp - NYU Sch of Medicine, Manhasset, NY; Xanthus Life Sciences, Cambridge, MA
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Abstract
The Birmingham hip resurfacing metal-on-metal arthroplasty was introduced in 1997 and has shown promising short- to mid-term results. We used radiostereophotogrammetric analysis (RSA) to study the stability of 20 resurfacing arthroplasties over a follow-up period of 24 months. Radiological examinations for RSA were performed immediately after surgery and at two, six, 12 and 24 months after operation. Precision and detection of migration thresholds (non-zero movement) were calculated. All the results corresponded well to those found in similar experimental arrangements with standard hip prostheses. Migration of the cup and vertical and mediolateral migration of the head were calculated. The values were low at two years compared with those of earlier studies of cemented femoral components in conventional total hip replacements indicating that there was no evidence of excessive early migration or loosening of the components.
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Affiliation(s)
- R Itayem
- Karolinska Institute, Stockholm, Sweden.
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Abstract
The introduction of the M90 boot with a more flexible outer sole to military recruits in Sweden was accompanied by an increase in second metatarsal stress fractures. This study compared the new boot with the previous, stiffer model. A combination of external plantar pressure measurement (two subjects) and an in vivo measurement of dorsal metatarsal strain (six subjects) using strain gauge instrumented staples was implemented. Walking in both boot models resulted in increased plantar pressure under the heads of the lesser metatarsals and generally decreased loading under the remainder of the foot. Dorsal metatarsal tension increased for subjects wearing the new boot throughout a walking protocol.
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Affiliation(s)
- A Arndt
- Biomechanics Laboratory, Karolinska Institute, Department of Orthopaedic Surgery, Huddinge University Hospital, 14186 Huddinge, Sweden.
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Abstract
We analysed the axis of movement in the normal elbow during flexion in vivo using radiostereometric analysis (RSA). The results show an intraindividual variation in the inclination of the axis ranging from 2.1 degrees to 14.3 degrees in the frontal and from 1.6 degrees to 9.8 degrees in the horizontal plane analysed at 30 degrees increments. The inclination of the mean axis of rotation varied within a range of 12.7 degrees in the frontal and 4.6 degrees in the horizontal plane. In both planes, the mean axes were located close to a line joining the centres of the trochlea and capitellum. The intra- and interindividual variations of the axes of flexion of the elbow were greater than previously reported. These factors should be considered in the development of elbow prostheses.
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Affiliation(s)
- A Ericson
- Department of Orthopaedics, Karolinska Institute, Karolinska Hospital, Stockholm, Sweden
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38
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Feldmann M, Andreakos E, Smith C, Bondeson J, Yoshimura S, Kiriakidis S, Monaco C, Gasparini C, Sacre S, Lundberg A, Paleolog E, Horwood NJ, Brennan FM, Foxwell BMJ. Is NF-kappaB a useful therapeutic target in rheumatoid arthritis? Ann Rheum Dis 2002; 61 Suppl 2:ii13-8. [PMID: 12379614 PMCID: PMC1766706 DOI: 10.1136/ard.61.suppl_2.ii13] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.7] [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: 01/13/2023]
Abstract
There is increasing evidence that NF-kappaB is a major, if not the major transcription factor regulating inflammation and immunity. While this implies that blocking NF-kappaB might be therapeutically beneficial, it raises clear questions regarding the balance between efficacy and safety. In this brief review we discuss the effects of NF-kappaB blockade in rheumatoid arthritis, inflammation and immunity, and consider possible therapeutic targets within the NF-kappaB family.
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Affiliation(s)
- M Feldmann
- Kennedy Institute of Rheumatology Division, Faculty of Medicine, Charing Cross Hospital Campus, Arthritis Research Campaign Building, 1 Aspenlea Road, London W6 8LH, UK.
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39
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Abstract
This in vivo study presents information to assist in the understanding of metatarsal stress fracture etiology. The aims were (a) to provide a fundamental description of loading patterns of the second metatarsal (MTII) during barefoot walking, and (b) to investigate the hypothesis that MTII dorsal strain increases with fatigue and external carrying load. Dorsal MTII strain was measured in vivo under local anaesthetic with an instrumented staple in eight subjects. Experimental conditions were external loading with a 20 kg backpack and pre- and post-fatigue. M. flexor digitorum longus electromyography tentatively indicated fatigue after an extended walking treatment. A reproducible, cyclic temporal pattern of dorsal MTII surface deformation was described. Mean peak compression and tension strains in unloaded barefoot walking were -1534 +/- 636 and 363 +/- 359 muepsilon, respectively. Mean peak compression strain rate (SR) was -4165 +/- 1233 muepsilon/s. Compression strain increased significantly (alpha=0.05) both with the addition of the backpack and post-fatigue while maximum tension decreased significantly post-fatigue. SR increased significantly with the addition of the backpack. The highest plantar force time integrals were recorded underneath the heads of metatarsals II-V for all conditions (1561Ns pre-fatigue, without backpack; 2123Ns post, with). EMG and plantar pressure data presented a comprehensive description of biomechanical parameters influencing dorsal MTII deformation and alterations in strain following two experimental conditions were suggested as contributing factors in the pathogenesis of metatarsal stress fractures.
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Affiliation(s)
- A Arndt
- Biomechanics Laboratory, Department of Orthopedic Surgery K54, Karolinska Institute, Huddinge University Hospital, 14186 Huddinge, Sweden.
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40
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Lundberg A. [20th century medical debate over venereal disease and prostitution]. Sven Med Tidskr 2002; 5:29-44. [PMID: 11817395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
In the early twentieth century a wider debate took place about how Swedish society was to fight the spread of contagious venereal diseases and in 1910 a government committee had written a law proposal that would dramatically reform these measures previously, Swedish physicians had been united against any measures against these diseases that did not involve the regulation of prostitutes, but this consensus was slowly withering away in the early parts of the century. Female doctors and a younger generation of venereologists was drawing the conclusion that mandatory checks of only one out of two sexes was insufficient. This article reviews the debate regarding the regulation of prostitution that took place between conservative and liberal members in the Swedish Medical Association in 1911. It depicts a fierce discussion between members that still clung to nineteenth-century ideas of women as being prone to prostitution if left idle and unemployed, and liberal members that believed social injustices such as low wages laid behind women's decisions. The study gives an insight into the complexities of building the Swedish welfare state.
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41
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Svenungsson B, Lundberg A. Clostridium difficile cytotoxin B in adults with diarrhea: a comparison of patients treated or not treated with antibiotics prior to infection. Clin Microbiol Infect 2001; 7:447-50. [PMID: 11591210 DOI: 10.1046/j.1469-0691.2001.00314.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [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: 11/20/2022]
Abstract
OBJECTIVE To study the detection rate of Clostridium difficile cytotoxin B in stool specimens from adults with diarrhea as related to previous antimicrobial treatment. METHODS Stool specimens from 802 adult patients with diarrhea and 203 healthy controls were tested for C. difficile cytotoxin B using a cell cytotoxicity assay. Antibiotic susceptibility testing of C. difficile was performed with the E test. RESULTS Of 173 patients treated with antimicrobial medication within 5 weeks of onset of diarrhea, 60 (35%) were positive for C. difficile cytotoxin B (group A) compared to only 41 (7%) of 629 untreated patients (group B) and two of the 203 (1%) healthy controls. Compared to patients in group A, patients in group B possessed characteristics not usually connected with C. difficile disease. They were generally younger (median age 40 years vs. 73 years), had been hospitalized less frequently (10% vs. 67%), had more often travelled abroad within the previous 2 weeks (46% vs. 1%), and more often had multiple enteropathogens (41% vs. 3%). Minimal inhibitory concentrations for vancomycin, metronidazole and fucidic acid to C. difficile isolates ranged from 0.5 to 4 mg/L, from 0.125 to 256 mg/L and 0.25 to 4 mg/L, respectively. CONCLUSIONS The detection rate of C. difficile cytotoxin B in patients with diarrhea, not associated with antibiotic treatment, is comparable to that in healthy control subjects. It probably merely reflects a carrier state without clinical significance.
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Affiliation(s)
- B Svenungsson
- Division of Infectious Diseases, Department of Medicine and Immunology, Karolinska Institute, Huddinge University Hospital, Huddinge, Sweden.
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42
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Blagovechtchenski E, Pettersson LG, Perfiliev S, Krasnochokova E, Lundberg A. Erratum to “Control of digits via C3–C4 propriospinal neurones in cats; recovery after lesions”. Neurosci Res 2001. [DOI: 10.1016/s0168-0102(01)00238-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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43
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Stone M, Davis EP, Douglas AS, NessAiver M, Gullapalli R, Levine WS, Lundberg A. Modeling the motion of the internal tongue from tagged cine-MRI images. J Acoust Soc Am 2001; 109:2974-2982. [PMID: 11425139 DOI: 10.1121/1.1344163] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A new technique, tagged Cine-Magnetic Resonance Imaging (tMRI), was used to develop a mechanical model that represented local, homogeneous, internal tongue deformation during speech. The goal was to infer muscle activity within the tongue from tissue deformations seen on tMRI. Measurements were made in three sagittal slices (left, middle, right) during production of the syllable /ka/. Each slice was superimposed with a grid of tag lines, and the approximately 40 tag line intersections were tracked at 7 time-phases during the syllable. A local model, similar to a finite element analysis, represented planar stretch and shear between the consonant and vowel at 110 probed locations within the tongue. Principal strains were calculated at these locations and revealed internal compression and extension patterns from which inferences could be drawn about the activities of the Verticalis, Hyoglossus, and Superior Longitudinal muscles, among others.
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Affiliation(s)
- M Stone
- Division of Otolaryngology, University of Maryland School of Medicine, Baltimore 21201, USA.
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44
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Stacoff A, Reinschmidt C, Nigg BM, Van Den Bogert AJ, Lundberg A, Denoth J, Stüssi E. Effects of shoe sole construction on skeletal motion during running. Med Sci Sports Exerc 2001; 33:311-9. [PMID: 11224823 DOI: 10.1097/00005768-200102000-00022] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.1] [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: 10/26/2022]
Abstract
PURPOSE The purpose of this study was to quantify effects of shoe sole modification on skeletal kinematics of the calcaneus and tibia during the stance phase of running. METHODS Intracortical bone pins with reflective marker triads were inserted under standard local anesthetic into the calcaneus and tibia of five healthy male subjects. The three-dimensional tibiocalcaneal rotations were determined using a joint coordinate system approach. Three shoe sole modifications were tested with different sole geometry: a lateral heel flare of 25 degrees (flared), no flare 0 degrees (straight), and a rounded sole. RESULTS The results showed that these shoe sole modifications did not change tibiocalcaneal rotations substantially. The shoe sole effects at the bone level were small and unsystematic (mean effects being less than 1 degrees ) compared with the differences between the subjects (up to 7 degrees ). Shoe eversion measured simultaneously with shoe markers showed no systematic shoe sole effects. A comparison of shoe and bone results showed the total shoe eversion and maximum shoe eversion velocity to be approximately twice as large as the respective measurements based on bone markers (correlations being r = 0.79 for maximum eversion velocity; r = 0.88 for total eversion), indicating that there may be a relationship or coupling effect between the shoes and the bone. CONCLUSIONS It is concluded that the tibiocalcaneal kinematics of running may be individually unique and that shoe sole modifications may not be able to change them substantially.
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Affiliation(s)
- A Stacoff
- Human Performance Laboratory, The University of Calgary, Canada.
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45
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Lundberg A. ["I'm not going to jail, am I?" A study of Lex Veneris, its creation, practice, and effect on the lives of individuals, 1919-45]. Hist Tidskr 2001:631-648. [PMID: 18163282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
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46
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Abstract
Barefoot running kinematics has been described to vary considerably from shod running. However, previous investigations were typically based on externally mounted shoe and/or skin markers, which have been shown to overestimate skeletal movements. Thus, the purpose of this study was to compare calcaneal and tibial movements of barefoot versus shod running using skeletal markers. Intracortical bone pins with reflective marker triads were inserted under standard local anesthetic into the calcaneus and tibia of five healthy male subjects. The subjects ran barefoot, with a normal shoe, with three shoe soles and two orthotic modifications. The three-dimensional tibiocalcaneal rotations were determined using a joint coordinate system approach. Test variables were defined for eversion and tibial rotation. The results showed that the differences in bone movements between barefoot and shod running were small and unsystematic (mean effects being less than 2 degrees ) compared with the differences between the subjects (up to 10 degrees ). However, differences may occur during midstance when extreme shoe modifications (i.e. posterior orthosis) are used. It is concluded that calcaneal and tibial movement patterns do not differ substantially between barefoot and shod running, and that the effects of these interventions are subject specific. The result of this in vivo study contrasts with previous investigations using skin and shoe mounted markers and suggests that these discrepancies may be the result of the overestimation with externally mounted markers.
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Affiliation(s)
- A Stacoff
- Human Performance Laboratory, The University of Calgary, Canada.
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47
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Lundberg A. [Both children and adults suffered of syphilis]. Lakartidningen 2000; 97:4611. [PMID: 11107751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Affiliation(s)
- A Lundberg
- Institutionen för historiska studier/historisk demografi, Umeå universitet
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48
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Blagovechtchenski E, Pettersson LG, Perfiliev S, Krasnochokova E, Lundberg A. Control of digits via C3-C4 propriospinal neurones in cats; recovery after lesions. Neurosci Res 2000; 38:103-7. [PMID: 10997583 DOI: 10.1016/s0168-0102(00)00147-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [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
C3-C4 propriospinal neurones (C3-C4 PNs) transmit the command for forelimb target-reaching in cats, while the command for food-taking is mediated by interneurones in the forelimb segments. The ability of the C3-C4 PNs to control digits has now been reinvestigated with combined lesions in dorsal C5 (transecting the cortico- and rubrospinal tracts) and ventral C2 (transecting reticulospinal tracts) leaving the C3-C4 PNs in sole control of the forelimb. Components of food-taking like flexion in the proximal interphalangeal joints were found in half of the cats. Supination and terminal flexion of the metacarpophalangeal joints by which normal cats bring the morsel of food to the mouth were lacking in all cats.
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49
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Pettersson LG, Blagovechtchenski E, Perfiliev S, Krasnochokova E, Lundberg A. Recovery of food-taking in cats after lesions of the corticospinal (complete) and rubrospinal (complete and incomplete) tracts. Neurosci Res 2000; 38:109-12. [PMID: 10997584 DOI: 10.1016/s0168-0102(00)00143-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [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: 10/18/2022]
Abstract
The food-taking movement by which a cat grasps a morsel of food and brings it to the mouth is governed by interneurones in the forelimb segments (C6-Th1) and is normally controlled by the cortico- and rubrospinal tracts. It disappears reversibly when these tracts are transected in C5. The reappearance after some time is at least in part due to a reticulospinal take-over of the command. We have compared the recovery after total transection of both tracts with that after lesions giving subtotal transection of the rubrospinal tract but total transection of the corticospinal tract. With 4-6% of the rubrospinal fibres left, the recovery of food-taking was clearly faster than after total transection.
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50
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Abstract
The purpose of this study was to quantify movement coupling at the ankle during the stance phase of running using bone-mounted markers. Intracortical bone pins with reflective marker triads were inserted under standard local anaesthesia into the calcaneus and the tibia of five healthy male subjects. The three-dimensional rotations were determined using a joint coordinate system approach. Movement coupling was observed in all test subjects and occurred in phases with considerable individual differences. Between the shoe and the calcaneus coupling increased after midstance which suggested that the test shoes provided more coupling for inversion than for eversion. Movement coupling between calcaneus and tibia was higher in the first phase (from heel strike to midstance) compared with the second phase (from midstance to take-off). This finding is in contrast to previous in-vitro studies but may be explained by the higher vertical loads of the present in-vivo study. Thus, movement coupling measured at the bone level changed throughout the stance phase of running and was found to be far more complex than a simple mitered joint or universal joint model.
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Affiliation(s)
- A Stacoff
- Human Performance Laboratory, The University of Calgary, Canada.
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