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Blomstrand J, Kjellby Wendt G, Karlsson J, Wangdell J, Fagevik Olsén M. Pain, hand function, activity performance and apprehensiveness, in patients with surgically treated distal radius fractures. J Plast Surg Hand Surg 2023; 57:247-252. [PMID: 35510735 DOI: 10.1080/2000656x.2022.2060992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Distal radius fracture (DRF) is a common injury, affecting both function and activity performance. Postoperative rehabilitation is an essential part of the treatment of a surgically treated DRF. The study aims were to assess pain, hand function, activity performance and apprehensiveness and their association, during the first three months after a surgically treated DRF. Eighty-eight patients with a DRF were assessed for pain, hand function, activity performance and apprehensiveness three days and two, six and 12 weeks after surgery. The results indicated that pain, range of motion (ROM), grip strength, apprehensiveness, and activity performance (PRWE) improved significantly between follow-ups (p < .001-.01). Apprehensiveness correlated moderately with activity performance on all visits (0.40-0.47, p < .01), which implies a correlation between the variables, but the regression model showed that the differences in the PRWE at twelve weeks cannot be explained by the differences in apprehensiveness or range of motion at cast removal. At 12 weeks, the study participants had regained almost 70% of their grip strength and 74-96% of the ROM of the uninjured hand.The study shows that, during the study period, the participants improved in both pain, hand function and activity performance, and indicates that a simple question on apprehensiveness in terms of using the injured hand in daily life could be an important factor in distal radius fracture rehabilitation.
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Affiliation(s)
- J Blomstrand
- Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Occupational Therapy and Physiotherapy, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - G Kjellby Wendt
- Department of Occupational Therapy and Physiotherapy, Sahlgrenska University Hospital, Gothenburg, Sweden.,Department of Health and Rehabilitation - Physiotherapy, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - J Karlsson
- Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Orthopaedics, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - J Wangdell
- Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Centre of Advanced Reconstruction of Extremities (CARE), Sahlgrenska University Hospital, Gothenburg, Sweden
| | - M Fagevik Olsén
- Department of Occupational Therapy and Physiotherapy, Sahlgrenska University Hospital, Gothenburg, Sweden.,Department of Health and Rehabilitation - Physiotherapy, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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Hunter LR, Sellars JD, Karlsson J, Probert M. (Z)-4,4’-Stilbene dicarboxylic acid, the overlooked metal-organic framework linker. CrystEngComm 2023. [DOI: 10.1039/d3ce00138e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
Metal-organic frameworks exhibit a broad and diverse structural portfolio, with rational structural engineering of frameworks becoming increasingly desirable. Fine-tuning the metal-ligand combination offers a simple way to adjust a framework’s...
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Sah V, Karlsson J, Bucher V, Olofsson Bagge R, Ny L, Nilsson L, Nilsson J. Using patient-derived xenografts as sources of 3D tumor sphere cultures to study autologous tumor-infiltrating lymphocytes in metastatic uveal melanoma. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)00922-4] [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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Affiliation(s)
- J. Karlsson
- Department of Paediatric Peri‐operative Medicine and Intensive CareKarolinska University HospitalStockholmSweden,Department of Paediatric AnaesthesiaMontreal Children's HospitalQuebecCanada
| | - M. Johansen
- Department of Paediatric AnaesthesiaMontreal Children's HospitalQuebecCanada
| | - T. Engelhardt
- Department of Paediatric AnaesthesiaMontreal Children's HospitalQuebecCanada
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5
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Cerpentier FJR, Karlsson J, Lalrempuia R, Brandon MP, Sazanovich IV, Greetham GM, Gibson EA, Pryce MT. Ruthenium Assemblies for CO 2 Reduction and H 2 Generation: Time Resolved Infrared Spectroscopy, Spectroelectrochemistry and a Photocatalysis Study in Solution and on NiO. Front Chem 2022; 9:795877. [PMID: 35004612 PMCID: PMC8738169 DOI: 10.3389/fchem.2021.795877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 11/29/2021] [Indexed: 11/13/2022] Open
Abstract
Two novel supramolecular complexes RuRe ([Ru(dceb)2(bpt)Re(CO)3Cl](PF6)) and RuPt ([Ru(dceb)2(bpt)PtI(H2O)](PF6)2) [dceb = diethyl(2,2′-bipyridine)-4,4′-dicarboxylate, bpt = 3,5-di(pyridine-2-yl)-1,2,4-triazolate] were synthesized as new catalysts for photocatalytic CO2 reduction and H2 evolution, respectively. The influence of the catalytic metal for successful catalysis in solution and on a NiO semiconductor was examined. IR-active handles in the form of carbonyl groups on the peripheral ligand on the photosensitiser were used to study the excited states populated, as well as the one-electron reduced intermediate species using infrared and UV-Vis spectroelectrochemistry, and time resolved infrared spectroscopy. Inclusion of ethyl-ester moieties led to a reduction in the LUMO energies on the peripheral bipyridine ligand, resulting in localization of the 3MLCT excited state on these peripheral ligands following excitation. RuPt generated hydrogen in solution and when immobilized on NiO in a photoelectrochemical (PEC) cell. RuRe was inactive as a CO2 reduction catalyst in solution, and produced only trace amounts of CO when the photocatalyst was immobilized on NiO in a PEC cell saturated with CO2.
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Affiliation(s)
| | - Joshua Karlsson
- Energy Materials Laboratory, Department of Chemistry, School of Natural and Environmental Science, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Ralte Lalrempuia
- School of Chemical Sciences, Dublin City University, Dublin, Ireland.,Department of Chemistry, School of Physical Sciences, Mizoram University, Aizawl, India
| | - Michael P Brandon
- School of Chemical Sciences, Dublin City University, Dublin, Ireland
| | - Igor V Sazanovich
- Central Laser Facility, Science and Technology Facilities Council, Research Complex at Harwell, Rutherford Appleton Laboratory, Oxford, United Kingdom
| | - Gregory M Greetham
- Central Laser Facility, Science and Technology Facilities Council, Research Complex at Harwell, Rutherford Appleton Laboratory, Oxford, United Kingdom
| | - Elizabeth A Gibson
- Energy Materials Laboratory, Department of Chemistry, School of Natural and Environmental Science, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Mary T Pryce
- School of Chemical Sciences, Dublin City University, Dublin, Ireland
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Blomstrand J, Karlsson J, Fagevik Olsén M, Kjellby Wendt G. The Michigan Hand Outcomes Questionnaire (MHQ-Swe) in patients with distal radius fractures-cross-cultural adaptation to Swedish, validation and reliability. J Orthop Surg Res 2021; 16:442. [PMID: 34233700 PMCID: PMC8262064 DOI: 10.1186/s13018-021-02571-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 06/18/2021] [Indexed: 11/14/2022] Open
Abstract
Background The Michigan Hand Outcomes Questionnaire—MHQ—is a well-known self-assessment questionnaire, where patients’ own perception in terms of recovery, pain and the ability to return to activities of daily living is assessed. The purpose of the study was to translate and culturally adapt the Michigan Hand Outcomes Questionnaire to Swedish and to test the validity and reliability in patients with surgically treated distal radius fractures. Methods The cross-cultural adaptation and the translation process were conducted according to predefined guidelines. Seventy-eight patients with surgically treated distal radius fractures completed the translated version of the questionnaire on their six-week follow-up visit. Results The translation and cross-cultural adaptation process revealed no major linguistic or cultural issues. The internal consistency of the MHQ-Swe ranged from 0.77 to 0.94 at test 1 and from 0.81 to 0.96 at test 2 for all subscales, which indicates good internal consistency in the subscales. The hand function subscale revealed the lowest results and work performance the highest. The ICCs showed excellent test-retest reliability, ranging from 0.77 to 0.90 on all MHQ subscales and 0.92 on total score. The highest results for the ICC were seen in the satisfaction subscale (ICC = 0.90), while the lowest were seen in the aesthetic subscale (ICC = 0.77). The correlation analysis between the MHQ-Swe, PRWE and VAS showed a generally moderate to high correlation for all the subscales. Conclusions The Swedish version of the MHQ, the MHQ-Swe, showed good validity and reliability and it is therefore an appropriate and relevant questionnaire for use in patients with surgically treated distal radius fractures. Trial registration FoU i VGR, Projectnumber: 208491, registered December 9, 2015.
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Affiliation(s)
- J Blomstrand
- Department of Occupational Therapy and Physiotherapy, Sahlgrenska University Hospital, Göteborgsvägen 31, Mölndal, SE-431 80, Sweden. .,Institute of Clinical Sciences, Department of Orthopaedics, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
| | - J Karlsson
- Institute of Clinical Sciences, Department of Orthopaedics, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Orthopaedics, Sahlgrenska University Hospital, Göteborgsvägen 31, Mölndal, SE-431 80, Sweden
| | - M Fagevik Olsén
- Department of Occupational Therapy and Physiotherapy, Sahlgrenska University Hospital, Göteborgsvägen 31, Mölndal, SE-431 80, Sweden.,Institute of Neuroscience and Physiology, Department of Health and Rehabilitation - Physiotherapy, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - G Kjellby Wendt
- Department of Occupational Therapy and Physiotherapy, Sahlgrenska University Hospital, Göteborgsvägen 31, Mölndal, SE-431 80, Sweden.,Institute of Neuroscience and Physiology, Department of Health and Rehabilitation - Physiotherapy, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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Churakov M, Karlsson J, Edvardsson Rasmussen A, Holtenius K. Milk fatty acids as indicators of negative energy balance of dairy cows in early lactation. Animal 2021; 15:100253. [PMID: 34090089 DOI: 10.1016/j.animal.2021.100253] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 04/13/2021] [Accepted: 04/15/2021] [Indexed: 02/01/2023] Open
Abstract
Most dairy cows experience negative energy balance (NEB) in early lactation because energy demand for milk synthesis is not met by energy intake. Excessive NEB may lead to metabolic disorders and impaired fertility. To optimize herd management, it is useful to detect cows in NEB in early lactation, but direct calculation of NEB is not feasible in commercial herds. Alternative methods rely on fat-to-protein ratio in milk or on concentrations of non-esterified fatty acids (NEFA) and β-hydroxybutyrate (BHB) in blood. Here, we considered methods to assess energy balance (EB) of dairy cows based on the fatty acid (FA) composition in milk. Short- and medium-chain FAs (primarily, C14:0) are typically synthesized de novo in the mammary gland and their proportions in milk fat decrease during NEB. Long-chain FAs C18:0 and C18:1 cis-9 are typically released from body fat depots during NEB, and their proportions increase. In this study, these FAs were routinely determined by Fourier-transform infrared spectroscopy (FTIR) of individual milk samples. We performed an experiment on 85 dairy cows in early lactation, fed the same concentrate ration of up to 5 kg per day and forage ad libitum. Daily milk yield and feed intake were automatically recorded. During lactation weeks 2, 4, and 6 after calving, two milk samples were collected for FTIR spectroscopy, Tuesday evening and Wednesday morning, blood plasma samples were collected Thursday morning. Net energy content in feed and net energy required for maintenance and lactation were estimated to derive EB, which was used to compare alternative indicators of severe NEB. Linear univariate models for EB based on NEFA concentration (deviance explained = 0.13) and other metabolites in blood plasma were outperformed by models based on concentrations of metabolites in milk: fat (0.27), fat-to-protein ratio (0.18), BHB (0.20), and especially C18:0 (0.28) and C18:1 cis-9 (0.39). Analysis of generalized additive models (GAM) revealed that models based on milk variables performed better than those based on blood plasma (deviance explained 0.46 vs. 0.21). C18:0 and C18:1 cis-9 also performed better in severe NEB prediction for EB cut-off values ranging from -50 to 0 MJ NEL/d. Overall, concentrations of C18:0 and C18:1 cis-9 in milk, milk fat, and milk BHB were the best variables for early detection of cows in severe NEB. Thus, milk FA concentrations in whole milk can be useful to identify NEB in early-lactation cows.
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Affiliation(s)
- M Churakov
- Department of Animal Nutrition and Management, Swedish University of Agricultural Sciences (SLU), Box 7024, SE-750 07 Uppsala, Sweden; Beijer Laboratory for Animal Science, Swedish University of Agricultural Sciences (SLU), Box 7024, SE-750 07 Uppsala, Sweden.
| | - J Karlsson
- Department of Animal Nutrition and Management, Swedish University of Agricultural Sciences (SLU), Box 7024, SE-750 07 Uppsala, Sweden
| | - A Edvardsson Rasmussen
- Department of Animal Nutrition and Management, Swedish University of Agricultural Sciences (SLU), Box 7024, SE-750 07 Uppsala, Sweden
| | - K Holtenius
- Department of Animal Nutrition and Management, Swedish University of Agricultural Sciences (SLU), Box 7024, SE-750 07 Uppsala, Sweden
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Toupalas G, Karlsson J, Black FA, Masip-Sánchez A, López X, Ben M'Barek Y, Blanchard S, Proust A, Alves S, Chabera P, Clark IP, Pullerits T, Poblet JM, Gibson EA, Izzet G. Tuning Photoinduced Electron Transfer in POM-Bodipy Hybrids by Controlling the Environment: Experiment and Theory. Angew Chem Int Ed Engl 2021; 60:6518-6525. [PMID: 33350554 DOI: 10.1002/anie.202014677] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Indexed: 11/07/2022]
Abstract
The optical and electrochemical properties of a series of polyoxometalate (POM) oxoclusters decorated with two bodipy (boron-dipyrromethene) light-harvesting units were examined. Evaluated here in this polyanionic donor-acceptor system is the effect of the solvent and associated counterions on the intramolecular photoinduced electron transfer. The results show that both solvents and counterions have a major impact upon the energy of the charge-transfer state by modifying the solvation shell around the POMs. This modification leads to a significantly shorter charge separation time in the case of smaller counterion and slower charge recombination in a less polar solvent. These results were rationalized in terms of Marcus theory and show that solvent and counterion both affect the driving force for photoinduced electron transfer and the reorganization energy. This was corroborated with theoretical investigations combining DFT and molecular dynamics simulations.
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Affiliation(s)
- Georgios Toupalas
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, 4 Place Jussieu, 75005, Paris, France
| | - Joshua Karlsson
- Energy Materials Laboratory, Chemistry, School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - Fiona A Black
- Energy Materials Laboratory, Chemistry, School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - Albert Masip-Sánchez
- Department de Química Física i Inorgànica, Universitat Rovira i Virgili, Marcel⋅lí Domingo 1, 43007, Tarragona, Spain
| | - Xavier López
- Department de Química Física i Inorgànica, Universitat Rovira i Virgili, Marcel⋅lí Domingo 1, 43007, Tarragona, Spain
| | - Youssef Ben M'Barek
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, 4 Place Jussieu, 75005, Paris, France
| | - Sébastien Blanchard
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, 4 Place Jussieu, 75005, Paris, France
| | - Anna Proust
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, 4 Place Jussieu, 75005, Paris, France
| | - Sandra Alves
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, 4 Place Jussieu, 75005, Paris, France
| | - Pavel Chabera
- Chemical Physics and NanoLund, Lund University, Box 124, 22241, Lund, Sweden
| | - Ian P Clark
- Central Laser Facility, Research Complex at Harwell, Science and Technology Facilities Council, Rutherford Appleton Laboratory, Harwell Campus, Didcot, Oxfordshire, OX11 0QX, UK
| | - Tönu Pullerits
- Chemical Physics and NanoLund, Lund University, Box 124, 22241, Lund, Sweden
| | - Josep M Poblet
- Department de Química Física i Inorgànica, Universitat Rovira i Virgili, Marcel⋅lí Domingo 1, 43007, Tarragona, Spain
| | - Elizabeth A Gibson
- Energy Materials Laboratory, Chemistry, School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - Guillaume Izzet
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, 4 Place Jussieu, 75005, Paris, France
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Toupalas G, Karlsson J, Black FA, Masip‐Sánchez A, López X, Ben M'Barek Y, Blanchard S, Proust A, Alves S, Chabera P, Clark IP, Pullerits T, Poblet JM, Gibson EA, Izzet G. Tuning Photoinduced Electron Transfer in POM‐Bodipy Hybrids by Controlling the Environment: Experiment and Theory. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014677] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Georgios Toupalas
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire IPCM 4 Place Jussieu 75005 Paris France
| | - Joshua Karlsson
- Energy Materials Laboratory Chemistry, School of Natural and Environmental Sciences Newcastle University Newcastle upon Tyne NE1 7RU UK
| | - Fiona A. Black
- Energy Materials Laboratory Chemistry, School of Natural and Environmental Sciences Newcastle University Newcastle upon Tyne NE1 7RU UK
| | - Albert Masip‐Sánchez
- Department de Química Física i Inorgànica Universitat Rovira i Virgili Marcel⋅lí Domingo 1 43007 Tarragona Spain
| | - Xavier López
- Department de Química Física i Inorgànica Universitat Rovira i Virgili Marcel⋅lí Domingo 1 43007 Tarragona Spain
| | - Youssef Ben M'Barek
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire IPCM 4 Place Jussieu 75005 Paris France
| | - Sébastien Blanchard
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire IPCM 4 Place Jussieu 75005 Paris France
| | - Anna Proust
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire IPCM 4 Place Jussieu 75005 Paris France
| | - Sandra Alves
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire IPCM 4 Place Jussieu 75005 Paris France
| | - Pavel Chabera
- Chemical Physics and NanoLund Lund University Box 124 22241 Lund Sweden
| | - Ian P. Clark
- Central Laser Facility Research Complex at Harwell Science and Technology Facilities Council Rutherford Appleton Laboratory Harwell Campus Didcot Oxfordshire OX11 0QX UK
| | - Tönu Pullerits
- Chemical Physics and NanoLund Lund University Box 124 22241 Lund Sweden
| | - Josep M. Poblet
- Department de Química Física i Inorgànica Universitat Rovira i Virgili Marcel⋅lí Domingo 1 43007 Tarragona Spain
| | - Elizabeth A. Gibson
- Energy Materials Laboratory Chemistry, School of Natural and Environmental Sciences Newcastle University Newcastle upon Tyne NE1 7RU UK
| | - Guillaume Izzet
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire IPCM 4 Place Jussieu 75005 Paris France
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Hellstrand S, Sundberg L, Karlsson J, Zügner R, Tranberg R, Hellstrand Tang U. Measuring sustainability in healthcare: an analysis of two systems providing insoles to patients with diabetes. Environ Dev Sustain 2021; 23:6987-7001. [PMID: 32863737 PMCID: PMC7445797 DOI: 10.1007/s10668-020-00901-z] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 07/21/2020] [Indexed: 05/04/2023]
Abstract
There is an increasing demand to quantify the footprints, ecological, economic and social, in terms of the effect of different interventions in healthcare. The aim of this study was to compare two systems providing patients with diabetes with insoles in terms of their ecological, economic and social footprints. Prefabricated insoles (PRI) were compared with custom-made insoles (CMI). Using a welfare-economic monetary approach, costs were estimated for (1) treatment, (2) travelling to and from the hospital in terms of both fuel and time consumed by the patients and (3) society through emissions contributing to climate change. The proportion of patients/year that could be supplied within the same budget, for each individual treatment, was calculated. The cost of the insoles was 825 SEK (PRI) and 1450 SEK (CMI), respectively. The cost, mean value/patient due to the consumption of patients' time at the department, was 754 SEK (PRI) and 1508 SEK (CMI), respectively. Emissions, in terms of CO2 equivalent, were 13.7 (PRI) and 27.4 (CMI), respectively. Using PRI, a total of 928 patients could be provided/year compared with 500 patients if CMI are used. By using PRI, the cost/treatment was reduced by 46%. The cost of treatment dominated and the cost of time consumed by patients were also substantial. The societal cost of contributing to climate change was of low importance. By using PRI, the needs of 86% more patients could be met within the same budget. Using these methods, the contribution of healthcare systems to the 17 Sustainable Development Goals approved by the UN can be quantified.
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Affiliation(s)
| | - L. Sundberg
- Gothenburg Diabetes Association, Mellangatan 1, 413 01 Göteborg, Sweden
| | - J. Karlsson
- The Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Göteborgsvägen 31, 43180 Mölndal, Sweden
| | - R. Zügner
- The Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Göteborgsvägen 31, 43180 Mölndal, Sweden
| | - R. Tranberg
- The Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Göteborgsvägen 31, 43180 Mölndal, Sweden
| | - Ulla Hellstrand Tang
- The Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Göteborgsvägen 31, 43180 Mölndal, Sweden
- The Department of Prosthetics and Orthotics, Sahlgrenska University Hospital, Falkenbergsgatan 3, 412 85 Göteborg, Sweden
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Benazzi E, Karlsson J, Ben M'Barek Y, Chabera P, Blanchard S, Alves S, Proust A, Pullerits T, Izzet G, Gibson EA. Acid-triggering of light-induced charge-separation in hybrid organic/inorganic molecular photoactive dyads for harnessing solar energy. Inorg Chem Front 2021. [DOI: 10.1039/d0qi01368d] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
H+ modulated charge-transfer in photoexcited covalently linked W and Mo Keggin-bodipy conjugates is demonstrated using transient absorption spectroscopy and photoluminescence. Adding acid switches on (W) or accelerates (Mo) charge separation.
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12
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Payandi-Rolland D, Shirokova LS, Tesfa M, Bénézeth P, Lim AG, Kuzmina D, Karlsson J, Giesler R, Pokrovsky OS. Dissolved organic matter biodegradation along a hydrological continuum in permafrost peatlands. Sci Total Environ 2020; 749:141463. [PMID: 32827830 DOI: 10.1016/j.scitotenv.2020.141463] [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: 06/16/2020] [Revised: 07/30/2020] [Accepted: 08/01/2020] [Indexed: 06/11/2023]
Abstract
Arctic regions contain large amounts of organic carbon (OC) trapped in soil and wetland permafrost. With climate warming, part of this OC is released to aquatic systems and degraded by microorganisms, thus resulting in positive feedback due to carbon (C) emission. In wetland areas, water bodies are spatially heterogenic and separated by landscape position and water residence time. This represents a hydrological continuum, from depressions, smaller water bodies and lakes to the receiving streams and rivers. Yet, the effect of this heterogeneity on the OC release from the soil and its processing in waters is largely unknown and not accounted for in C cycle models of Arctic regions. Here we investigated the dissolved OC (DOC) biodegradation of aquatic systems along a hydrological continuum located in two discontinuous permafrost sites: in western Siberia and northern Sweden. The biodegradable dissolved OC (BDOC15; % DOC lost relative to the initial DOC concentration after 15 days incubation at 20 °C) ranged from 0 to 20% for small water bodies located at the beginning of the continuum (soil solutions, small ponds, fen and lakes) and from 10 to 20% for streams and rivers. While the BDOC15 increased, the removal rate of DOC decreased along the hydrological continuum. The potential maximum CO2 production from DOC biodegradation was estimated to account for only a small part of in-situ CO2 emissions measured in peatland aquatic systems of northern Sweden and western Siberia. This suggests that other sources, such as sediment respiration and soil input, largely contribute to CO2 emissions from small surface waters of permafrost peatlands. Our results highlight the need to account for large heterogeneity of dissolved OC concentration and biodegradability in order to quantify C cycling in arctic water bodies susceptible to permafrost thaw.
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Affiliation(s)
- D Payandi-Rolland
- Geoscience and Environment Toulouse, GET-CNRS-IRD-OMP, University of Toulouse, 14, Avenue Edouard Belin, 31400 Toulouse, France.
| | - L S Shirokova
- Geoscience and Environment Toulouse, GET-CNRS-IRD-OMP, University of Toulouse, 14, Avenue Edouard Belin, 31400 Toulouse, France; N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, Arkhangelsk, Russia
| | - M Tesfa
- Geoscience and Environment Toulouse, GET-CNRS-IRD-OMP, University of Toulouse, 14, Avenue Edouard Belin, 31400 Toulouse, France
| | - P Bénézeth
- Geoscience and Environment Toulouse, GET-CNRS-IRD-OMP, University of Toulouse, 14, Avenue Edouard Belin, 31400 Toulouse, France
| | - A G Lim
- BIO-GEO-CLIM Laboratory, Tomsk State University, 35 Lenina Pr., Tomsk, Russia
| | - D Kuzmina
- BIO-GEO-CLIM Laboratory, Tomsk State University, 35 Lenina Pr., Tomsk, Russia
| | - J Karlsson
- Climate Impacts Research Centre (CIRC), Department of Ecology and Environmental Science, Umeå University, SE-981 07 Abisko, Sweden
| | - R Giesler
- Climate Impacts Research Centre (CIRC), Department of Ecology and Environmental Science, Umeå University, SE-981 07 Abisko, Sweden
| | - O S Pokrovsky
- Geoscience and Environment Toulouse, GET-CNRS-IRD-OMP, University of Toulouse, 14, Avenue Edouard Belin, 31400 Toulouse, France; N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, Arkhangelsk, Russia; BIO-GEO-CLIM Laboratory, Tomsk State University, 35 Lenina Pr., Tomsk, Russia
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13
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Carmont M, Brorsson A, Karlsson J, Nilsson-Helander K. No difference in Achilles Tendon Resting Angle, Patient-reported outcome or Heel-rise height Index between Non- and Early-weightbearing the First Year after an Achilles Tendon Rupture. Muscles Ligaments Tendons J 2020. [DOI: 10.32098/mltj.04.2020.13] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- M.R. Carmont
- Department of Trauma and Orthopaedic Surgery, Princess Royal Hospital, Shrewsbury and Telford Hospital NHS Trust, Shropshire, UK
- Department of Orthopaedics, Institute of Clinical Sciences at Sahlgrenska Academy, Gothenburg University, Sweden
| | - A. Brorsson
- Department of Orthopaedics, Institute of Clinical Sciences at Sahlgrenska Academy, Gothenburg University, Sweden
| | - J. Karlsson
- Department of Orthopaedics, Institute of Clinical Sciences at Sahlgrenska Academy, Gothenburg University, Sweden
| | - K. Nilsson-Helander
- Department of Orthopaedics, Institute of Clinical Sciences at Sahlgrenska Academy, Gothenburg University, Sweden
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14
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Cullen AA, Heintz K, O'Reilly L, Long C, Heise A, Murphy R, Karlsson J, Gibson E, Greetham GM, Towrie M, Pryce MT. A Time-Resolved Spectroscopic Investigation of a Novel BODIPY Copolymer and Its Potential Use as a Photosensitiser for Hydrogen Evolution. Front Chem 2020; 8:584060. [PMID: 33195076 PMCID: PMC7604388 DOI: 10.3389/fchem.2020.584060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 09/15/2020] [Indexed: 11/13/2022] Open
Abstract
A novel 4,4-difuoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) copolymer with diethynylbenzene has been synthesised, and its ability to act as a photosensitiser for the photocatalytic generation of hydrogen was investigated by time-resolved spectroscopic techniques spanning the ps- to ns-timescales. Both transient absorption and time-resolved infrared spectroscopy were used to probe the excited state dynamics of this photosensitising unit in a variety of solvents. These studies indicated how environmental factors can influence the photophysics of the BODIPY polymer. A homogeneous photocatalytic hydrogen evolution system has been developed using the BODIPY copolymer and cobaloxime which provides hydrogen evolution rates of 319 μmol h−1 g−1 after 24 h of visible irradiation.
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Affiliation(s)
- Aoibhín A Cullen
- School of Chemical Sciences, Dublin City University, Dublin, Ireland
| | - Katharina Heintz
- School of Chemical Sciences, Dublin City University, Dublin, Ireland
| | - Laura O'Reilly
- School of Chemical Sciences, Dublin City University, Dublin, Ireland
| | - Conor Long
- School of Chemical Sciences, Dublin City University, Dublin, Ireland
| | - Andreas Heise
- Department of Chemistry, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Robert Murphy
- Department of Chemistry, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Joshua Karlsson
- Energy Materials Laboratory, Department of Chemistry, School of Natural and Environmental Science, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Elizabeth Gibson
- Energy Materials Laboratory, Department of Chemistry, School of Natural and Environmental Science, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Gregory M Greetham
- Central Laser Facility, Science & Technology Facilities Council, Research Complex at Harwell, Rutherford Appleton Laboratory, Oxford, United Kingdom
| | - Michael Towrie
- Central Laser Facility, Science & Technology Facilities Council, Research Complex at Harwell, Rutherford Appleton Laboratory, Oxford, United Kingdom
| | - Mary T Pryce
- School of Chemical Sciences, Dublin City University, Dublin, Ireland
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15
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Shirokova LS, Payandi-Rolland D, Lim AG, Manasypov RM, Allen J, Rols JL, Bénézeth P, Karlsson J, Pokrovsky OS. Diel cycles of carbon, nutrient and metal in humic lakes of permafrost peatlands. Sci Total Environ 2020; 737:139671. [PMID: 32521361 DOI: 10.1016/j.scitotenv.2020.139671] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 05/21/2020] [Accepted: 05/22/2020] [Indexed: 06/11/2023]
Abstract
Despite the importance of surface waters of permafrost landscapes in carbon (C) emission and dissolved C and metal storage and export, the majority of available observations in high latitude aquatic systems deal with punctual or seasonal sampling without accounting for diurnal variations in temperature and primary productivity-respiration cycles. Towards providing comprehensive understanding of diel variations in CO2 emission, organic C and element concentrations in lakes of frozen peatlands, we monitored, each 2 h over 2 days, the water temperature, pH, CO2 fluxes, CO2, CH4, dissolved organic and inorganic carbon (DOC and DIC, respectively), nutrients, carboxylic acids, bacterial number, and major and trace elements in two acidic (pH = 3.6 and 4.0) and humic (DOC = 15 and 35 mg L-1) thermokarst lakes of discontinuous permafrost zone in Western Siberia. We discovered a factor of 2 to 3 higher CO2 concentrations and fluxes during the night compared to daytime in the high-DOC lake. The emission fluxes in the low-DOC lake increased from zero to negative values during the day to highly positive values during the end of night and early morning. The methane concentration varied within a factor of 5 without any link to the diurnal cycle. The bulk of dissolved (< 0.45 μm) hydrochemical parameters remained highly stable with ±10% variation in concentration over 2 days of observation (DOC, DIC, SUVA254nm, carboxylates (formate, oxalate, puryvate and glutarate), Mn, Fe, Al, other trace elements). Concentrations of Si, P, K, Cu varied within ±20% whereas those of Zn and Ni ranged by a factor of 2 to 4 without any link to diurnal pattern. Overall, the impact of diel cycle on CH4, DOC, nutrient and metal concentration was below 10%. However, neglecting night-time period may underestimate net CO2 emission by ca. 30 to 50% in small organic-rich thaw ponds and switch the CO2 exchange from uptake/zero to net emission in larger thermokarst lakes. Given the dominance of large lakes in permafrost regions, the global underestimation of the emission flux may be quite high. As such, monitoring CO2 concentrations and fluxes in thermokarst lakes during months of extended night time (August to October) is mandatory for assessing the net emissions from lentic waters of frozen peatlands.
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Affiliation(s)
- L S Shirokova
- Géosciences Environnement Toulouse, GET - CNRS - IRD - OMP - Université de Toulouse, 14, Avenue Edouard Belin, 31400 Toulouse, France; Institute of Ecological Problems of the North, Russian Academy of Science, 23, Naberezhnaya Sev. Dviny, Arkhangelsk, Russia
| | - D Payandi-Rolland
- Géosciences Environnement Toulouse, GET - CNRS - IRD - OMP - Université de Toulouse, 14, Avenue Edouard Belin, 31400 Toulouse, France
| | - A G Lim
- BIO-GEO-CLIM Laboratory, Tomsk State University, 36 Lenina Pr., Tomsk, Russia
| | - R M Manasypov
- BIO-GEO-CLIM Laboratory, Tomsk State University, 36 Lenina Pr., Tomsk, Russia
| | - J Allen
- EcoLab, Université de Toulouse, CNRS, Toulouse, France
| | - J-L Rols
- EcoLab, Université de Toulouse, CNRS, Toulouse, France
| | - P Bénézeth
- Géosciences Environnement Toulouse, GET - CNRS - IRD - OMP - Université de Toulouse, 14, Avenue Edouard Belin, 31400 Toulouse, France
| | - J Karlsson
- Climate Impacts Research Centre (CIRC), Department of Ecology and Environmental Science, Umeå University, SE-901 87 Umeå, Sweden
| | - O S Pokrovsky
- Géosciences Environnement Toulouse, GET - CNRS - IRD - OMP - Université de Toulouse, 14, Avenue Edouard Belin, 31400 Toulouse, France.
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16
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Magnusson P, Karlsson J, Wallhagen M, Mattsson G. P1152Health-related quality of life among implantable cardioverter defibrillator patients compared to age- and sex-matched norms. Europace 2020. [DOI: 10.1093/europace/euaa162.037] [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: 11/14/2022] Open
Abstract
Abstract
Background The decision to implant an ICD integrates presumed health-related quality of life (HRQL).
Purpose To assess HRQL in ICD patients using the questionnaire SF-36, and compare it to a Swedish age- and sex-matched population.
Methods SF-36 of ICD patients 2007-2017 (response rate 77.2%) were analysed using the Mann-Whitney U-test and effect size (ES).
Results In total, 223 patients (mean age 71.1 ±9.7 years) were included of whom 33.6% had a CRTD. A majority were men 82.1% (n = 183) and 60.1% (n = 134) had an ICD due to primary prevention. SF-36 score are summarized as Table 1. Mean age was similar between men and women (71.1 vs 70.9 years) and there were no significant difference score at any domain, including both component scores. Primary and secondary prevention patients (mean age 70.3 vs 72.3 years) scored similar except for worse GH in PP (p = 0.016, ES 0.35). A history of atrial fibrillation at baseline was associated with worse PF (ES 0.41) and PCS (ES 0.38). Neither appropriate therapy, inappropriate shock, nor complications requiring surgery, were associated with lower scores in any domain. In primary prevention due to ischemic vs non-ischemic cardiomyopathy no domain were significantly different. PCS decreased with higher age strata (p = 0.002) in contrast to MCS (p = 0.986).
Conclusion Patients with ICDs have lower physical and mental HRQL than age- and sex matched norms; however the effect sizes are small. HRQL is similar regardless of sex, primary vs secondary prevention indication, appropriate therapy, inappropriate shock or complications but decreases with age.
Table 1. SF-36 ICD patients(n = 223) Swedish Norms (n = 171) Mean (SD) Mean (SD) p-value Effect size Physical Functioning (PF) 65.1 (28.1) 75.5 (26.0) 0.0002 0.38 Role Physical (RP) 56.9 (44.1) 66.7 (40.4) 0.0466 0.23 Bodily Pain (BP) 71.9 (29.9) 71.0 (27.2) 0.6395 NS General Health (GH) 56.2 (21.7) 65.9 (25.3) ≤0.0001 0.41 Vitality (VT) 58.0 (24.8) 68.1 (27.2) ≤0.0001 0.39 Social Functioning (SF) 80.1 (24.4) 85.9 (22.9) 0.0025 0.25 Role Emotional (RE) 72.2 (39.9) 76.7 (35.7) 0.3730 NS Mental Health (MH) 76.2 (19.4) 83.8 (20.9) ≤0.0001 0.38 Physical Component Summary (PCS) 40.7 (12.3) 44.4 (11.6) 0.0052 0.31 Mental Component Summary (MCS) 48.6 (10.8) 51.9 (10.5) 0.0010 0.31 Health-related quality of life among ICD patients compared to age- and sex-matched Swedish norms.
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Affiliation(s)
| | - J Karlsson
- Orebro University, University Health Care Research Center, Faculty of Medicine and Health, Orebro, Sweden
| | - M Wallhagen
- University of Gävle, Department of Building, Energy and Sustainability Science, Gävle, Sweden
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17
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Giannoudis E, Benazzi E, Karlsson J, Copley G, Panagiotakis S, Landrou G, Angaridis P, Nikolaou V, Matthaiaki C, Charalambidis G, Gibson EA, Coutsolelos AG. Photosensitizers for H 2 Evolution Based on Charged or Neutral Zn and Sn Porphyrins. Inorg Chem 2020; 59:1611-1621. [PMID: 31940179 DOI: 10.1021/acs.inorgchem.9b01838] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report a comparison between a series of zinc and tin porphyrins as photosensitizers for photochemical hydrogen evolution using cobaloxime complexes as molecular catalysts. Among all the chromophores tested, only the positively charged zinc porphyrin, [ZnTMePyP4+]Cl4, and the neutral tin porphyrin derivatives, Sn(OH)2TPyP, Sn(Cl2)TPP-[COOMe]4, and Sn(Cl2)TPP-[PO(OEt)2]4, were photocatalytically active. Hydrogen evolution was strongly affected by the pH value as well as the different concentrations of both the sensitizer and the catalyst. A comprehensive photophysical and electrochemical investigation was conducted in order to examine the mechanism of photocatalysis. The results derived from this study establish fundamental criteria with respect to the design and synthesis of porphyrin derivatives for their application as photosensitizers in photoinduced hydrogen evolution.
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Affiliation(s)
- Emmanouil Giannoudis
- Laboratory of Bioinorganic Chemistry, Department of Chemistry , University of Crete , Voutes Campus , 70013 Heraklion , Crete , Greece.,Laboratoire de Chimie et Biologie des Métaux , UMR 5249 Université Grenoble Alpes, CNRS, CEA , 17 rue des Martyrs , F-38054 Grenoble Cedex 9 , France
| | - Elisabetta Benazzi
- Chemistry-School of Natural and Environmental Sciences , Newcastle University , Newcastle upon Tyne , NE1 7RU United Kingdom
| | - Joshua Karlsson
- Chemistry-School of Natural and Environmental Sciences , Newcastle University , Newcastle upon Tyne , NE1 7RU United Kingdom
| | - Graeme Copley
- Chemistry-School of Natural and Environmental Sciences , Newcastle University , Newcastle upon Tyne , NE1 7RU United Kingdom
| | - Stylianos Panagiotakis
- Laboratory of Bioinorganic Chemistry, Department of Chemistry , University of Crete , Voutes Campus , 70013 Heraklion , Crete , Greece
| | - Georgios Landrou
- Laboratory of Bioinorganic Chemistry, Department of Chemistry , University of Crete , Voutes Campus , 70013 Heraklion , Crete , Greece
| | - Panagiotis Angaridis
- Department of Chemistry , Aristotle University of Thessaloniki , Thessaloniki 54124 , Greece
| | - Vasilis Nikolaou
- Laboratory of Bioinorganic Chemistry, Department of Chemistry , University of Crete , Voutes Campus , 70013 Heraklion , Crete , Greece
| | - Chrysanthi Matthaiaki
- Laboratory of Bioinorganic Chemistry, Department of Chemistry , University of Crete , Voutes Campus , 70013 Heraklion , Crete , Greece
| | - Georgios Charalambidis
- Laboratory of Bioinorganic Chemistry, Department of Chemistry , University of Crete , Voutes Campus , 70013 Heraklion , Crete , Greece
| | - Elizabeth A Gibson
- Chemistry-School of Natural and Environmental Sciences , Newcastle University , Newcastle upon Tyne , NE1 7RU United Kingdom
| | - Athanassios G Coutsolelos
- Laboratory of Bioinorganic Chemistry, Department of Chemistry , University of Crete , Voutes Campus , 70013 Heraklion , Crete , Greece
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18
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Dalmau-Pastor M, Malagelada F, Kerkhoffs GM, Karlsson J, Guelfi M, Vega J. Redefining anterior ankle arthroscopic anatomy: medial and lateral ankle collateral ligaments are visible through dorsiflexion and non-distraction anterior ankle arthroscopy. Knee Surg Sports Traumatol Arthrosc 2020; 28:18-23. [PMID: 31292688 DOI: 10.1007/s00167-019-05603-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 06/24/2019] [Indexed: 12/21/2022]
Abstract
PURPOSE A thorough understanding of the arthroscopic anatomy is important to recognise pathological conditions. Although some ankle ligaments have been described as intra-articular structures, no studies have assessed the full visibility of these structures. The purpose of this study was to assess arthroscopic visibility of medial and lateral ankle collateral ligaments. METHODS Arthroscopy was performed in 20 fresh frozen ankles. The arthroscope was introduced through the anteromedial portal and the anterior compartment was explored in ankle dorsiflexion without distraction. Intra-articular structures were tagged using a suture-passer introduced percutaneously and they were listed in a table according to the surgeon's identification. After the arthroscopic procedure, the ankles were dissected to identify the suture-tagged structures. RESULTS According to the suture-tagged structures, 100% correlation was found between arthroscopy and dissection. In the anterior compartment, the superior fascicle of the anterior talofibular ligament, the distal fascicle of the anterior tibiofibular ligament and the anterior tibiotalar ligament on the medial side were observed. The deep fascicle of the posterior tibiofibular ligament and the intermalleolar ligament were tagged at the posterior compartment. CONCLUSION Ankle dorsiflexion and non-distraction arthroscopic technique allows full visualisation of the medial and lateral ankle collateral ligaments: the superior fascicle of the anterior talofibular ligament, the distal fascicle of the anterior tibiofibular ligament and the anterior tibiotalar ligament. When using distraction, posterior structures as the deep fascicle of the posterior tibiofibular ligament and the intermalleolar ligament can be observed with anterior arthroscopy.
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Affiliation(s)
- Miki Dalmau-Pastor
- Human Anatomy and Embryology Unit, Department of Pathology and Experimental Therapeutics, University of Barcelona, Barcelona, Spain. .,GRECMIP-MIFAS (Groupe de Recherche et d'Étude en Chirurgie Mini-Invasive du Pied-Minimally Invasive Foot and Ankle Society), Merignac, France. .,Vilamèdic Medical Center, Santa Coloma de Gramanet, Barcelona, Spain.
| | - F Malagelada
- Human Anatomy and Embryology Unit, Department of Pathology and Experimental Therapeutics, University of Barcelona, Barcelona, Spain.,Department of Trauma and Orthopaedic Surgery, Royal London Hospital, Barts Health NHS Trust, London, UK
| | - G M Kerkhoffs
- Department of Orthopedic Surgery, Amsterdam University Medical Centers, Amsterdam Movement Sciences, Amsterdam, The Netherlands.,Academic Center for Evidence-based Sports medicine (ACES), Academic Medical Center, Amsterdam, The Netherlands.,Amsterdam Collaboration on Health and Safety in Sports (ACHSS), AMC/VUmc IOC Research Center, Amsterdam, The Netherlands
| | - J Karlsson
- Department of Orthopaedics, Sahlgrenska University Hospital, Sahlgrenska Academy, Gothenburg University, Göteborg, Sweden
| | - M Guelfi
- Foot and Ankle Unit, Clinica Montallegro, Genoa, Italy.,Human Anatomy and Embryology Unit, Department of Morphological Sciences, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - J Vega
- Human Anatomy and Embryology Unit, Department of Pathology and Experimental Therapeutics, University of Barcelona, Barcelona, Spain.,GRECMIP-MIFAS (Groupe de Recherche et d'Étude en Chirurgie Mini-Invasive du Pied-Minimally Invasive Foot and Ankle Society), Merignac, France.,Foot and Ankle Unit, iMove Tres Torres, Barcelona, Spain
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19
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Malagelada F, Vega J, Guelfi M, Kerkhoffs G, Karlsson J, Dalmau-Pastor M. Anatomic lectures on structures at risk prior to cadaveric courses reduce injury to the superficial peroneal nerve, the commonest complication in ankle arthroscopy. Knee Surg Sports Traumatol Arthrosc 2020; 28:79-85. [PMID: 30729253 DOI: 10.1007/s00167-019-05373-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 01/24/2019] [Indexed: 12/19/2022]
Abstract
PURPOSE To assess the effectiveness of cadaveric ankle arthroscopy courses in reducing iatrogenic injuries. METHODS A total of 60 novice surgeons enrolled in a basic cadaveric ankle arthroscopy course were divided into two groups. Group A (n = 32) was lectured on portal placement and use of the arthroscope, whereas group B (n = 28) was in addition lectured on specific portal-related complications. Following the performance of anterior ankle arthroscopy and hindfoot endoscopy, the specimens were dissected and carefully assessed for detection of any iatrogenic injuries. RESULTS The rate of injury to the superficial peroneal nerve (SPN) was reduced from 25 to 3.6%, in group A compared with B (p = 0.033). Injuries to the peroneus tertius or extensor digitorum longus, the flexor hallucis longus and the tibial nerve or the Achilles tendon were also reduced in group B. Overall, the number of uninjured specimens was 50% (n = 30) and higher in group B (57%) than group A (44%). Lesions to the plantaris tendon, the sural nerve or the posterior tibial artery were more common in group B, however, without reaching statistical significance. Overall, 25 (13.9%) anatomic structures were injured in anterior arthroscopy compared to 18 (5%) in hindfoot endoscopy, out of a potential total of 180 and 360, respectively (p = 0.001). CONCLUSION Dedicated lectures on portal-related complications have proven useful in reducing the risk of injury to the SPN, the commonest iatrogenic injury encountered in ankle arthroscopy. Hindfoot endoscopy is significantly safer than anterior ankle arthroscopy in terms of injury to anatomical structures.
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Affiliation(s)
- F Malagelada
- Human Anatomy and Embryology Unit, Department of Pathology and Experimental Therapeutics, University of Barcelona, Barcelona, Spain. .,Department of Trauma and Orthopaedic Surgery, Royal London Hospital, Barts Health NHS Trust, London, UK.
| | - J Vega
- Human Anatomy and Embryology Unit, Department of Pathology and Experimental Therapeutics, University of Barcelona, Barcelona, Spain.,GRECMIP (Groupe de Recherche et d'Etude en Chirurgie Mini-Invasive du Pied), Merignac, France.,Foot and Ankle Unit, Hospital Quirón and Clinica Tres Torres, Barcelona, Spain
| | - M Guelfi
- Foot and Ankle Unit, Clinica Montallegro, Genoa, Italy.,Human Anatomy and Embryology Unit, Department of Morphological Sciences, Universitad Autònoma de Barcelona, Barcelona, Spain
| | - G Kerkhoffs
- Department of Orthopedic Surgery, Amsterdam University Medical Centers, Amsterdam Movement Sciences, Amsterdam, The Netherlands.,Academic Center for Evidence-Based Sports medicine (ACES), Academic Medical Center, Amsterdam, The Netherlands.,Amsterdam Collaboration on Health and Safety in Sports (ACHSS), AMC/VUmc IOC Research Center, Amsterdam, The Netherlands
| | - J Karlsson
- Department of Orthopaedics, Sahlgrenska University Hospital, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden
| | - M Dalmau-Pastor
- Human Anatomy and Embryology Unit, Department of Pathology and Experimental Therapeutics, University of Barcelona, Barcelona, Spain.,GRECMIP (Groupe de Recherche et d'Etude en Chirurgie Mini-Invasive du Pied), Merignac, France
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20
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Vega J, Malagelada F, Karlsson J, Kerkhoffs GM, Guelfi M, Dalmau-Pastor M. A step-by-step arthroscopic examination of the anterior ankle compartment. Knee Surg Sports Traumatol Arthrosc 2020; 28:24-33. [PMID: 31667570 DOI: 10.1007/s00167-019-05756-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 10/07/2019] [Indexed: 10/25/2022]
Abstract
PURPOSE Despite the increased use of ankle dorsiflexion without distraction, no reports have specifically addressed the arthroscopic anatomy of the ankle in this position. The purpose of this study was to describe the normal arthroscopic anatomy of the ankle joint, when using the ankle dorsiflexion and the dynamic distraction technique, and to propose an arthroscopic examination system for the anterior ankle compartment. METHODS Ankle arthroscopy was performed in 20 fresh frozen specimens. Arthroscopic examination was performed with the arthroscope introduced through the anteromedial portal. The anterior compartment was examined in ankle dorsiflexion without distraction. The compartment was examined in four steps: (1) lateral area including the lateral gutter; (2) the central area of the anterior tibial rim; (3) the medial area including the medial gutter; (4) the talar neck. Next, distraction was applied to visualise the anterior compartment again and to examine the central and posterior ankle compartments. RESULTS Anatomic intra-articular structures were visualised in all specimens. Four intra-articular fat pads, one anteromedial, two syndesmotic and another posteromedial, were constantly observed. A description of the normal arthroscopic anatomy of the ankle using the ankle dorsiflexion and the dynamic distraction technique is detailed for the anterior, central and posterior compartments. CONCLUSION The ankle arthroscopic procedure without distraction allows constant visualisation of the ATFL's superior fascicle on the floor of the lateral gutter, the ATiFL's distal fascicle laterally and the most anterior margin of the deltoid ligament in the medial gutter (anterior tibiotalar ligament). However, ankle distraction is required to observe the central and posterior compartments, but it does not provide optimal visualisation of the anterior ankle compartment structures. LEVEL OF EVIDENCE V.
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Affiliation(s)
- J Vega
- Human Anatomy and Embryology Unit, Department of Pathology and Experimental Therapeutics, University of Barcelona, Barcelona, Spain. .,Foot and Ankle Unit, Orthopedic Department, iMove Tres Torres Barcelona 76, Dr Roux st, Barcelona, Spain. .,GRECMIP-MIFAS (Groupe de Recherche et d'Etude en Chirurgie Mini-Invasive du Pied-Minimally Invasive Foot and Ankle Society), Merignac, France.
| | - F Malagelada
- Human Anatomy and Embryology Unit, Department of Pathology and Experimental Therapeutics, University of Barcelona, Barcelona, Spain.,Department of Trauma and Orthopaedic Surgery, Royal London Hospital, Barts Health NHS Trust, London, UK
| | - J Karlsson
- Department of Orthopaedics, Sahlgrenska University Hospital, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden
| | - G M Kerkhoffs
- Department of Orthopedic Surgery, Amsterdam Movement Sciences, Amsterdam University Medical Centers, Amsterdam, The Netherlands.,Academic Center for Evidence-Based Sports Medicine (ACES), Academic Medical Center, Amsterdam, The Netherlands.,Amsterdam Collaboration On Health and Safety in Sports (ACHSS), AMC/VUmc IOC Research Center, Amsterdam, The Netherlands
| | - M Guelfi
- Foot and Ankle Unit, Clinica Montallegro, Genoa, Italy.,Human Anatomy and Embryology Unit, Department of Morphological Sciences, Universitad Autònoma de Barcelona, Barcelona, Spain
| | - M Dalmau-Pastor
- Human Anatomy and Embryology Unit, Department of Pathology and Experimental Therapeutics, University of Barcelona, Barcelona, Spain.,GRECMIP-MIFAS (Groupe de Recherche et d'Etude en Chirurgie Mini-Invasive du Pied-Minimally Invasive Foot and Ankle Society), Merignac, France
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21
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Dalmau-Pastor M, Malagelada F, Kerkhoffs GMMJ, Karlsson J, Manzanares MC, Vega J. The anterior tibiofibular ligament has a constant distal fascicle that contacts the anterolateral part of the talus. Knee Surg Sports Traumatol Arthrosc 2020; 28:48-54. [PMID: 30159737 DOI: 10.1007/s00167-018-5123-z] [Citation(s) in RCA: 8] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 08/22/2018] [Indexed: 12/26/2022]
Abstract
PURPOSE The anterior tibiofibular ligament (ATiFL) and its distal fascicle have been the subject of numerous studies, mainly due to the involvement of this ligament in anterolateral soft-tissue impingement of the ankle. There is currently no firm evidence related to the incidence of the distal fascicle or the frequency with which it is in contact with the talus, or whether this is a constant anatomic finding. In addition, the terminology used to refer to this structure is not accurate and varies widely in previous studies. The purpose of this study was to perform an anatomic study on a large number of specimens to clarify the anatomy of the anterior tibiofibular ligament, and specifically its distal fascicle, and its possible role in anterior ankle impingement syndrome. METHODS During a 7-year period (2010-2016), cadaveric ankle specimens dissected at our Anatomy Department were included in this study, accounting for a total of 154 ankles. The incidence of the distal fascicle and its contact with the talus were documented. RESULTS One hundred and seventeen ankles were included [78 men, 39 women, with a median age of 79.3 years (range 51-100 years)]. The ATiFL was found to have a distal fascicle in 100% of ankles, contacting the anterolateral part of the talus in all cases. The contact was increased in plantarflexion and reduced in dorsiflexion and finally disappeared completely in maximum dorsiflexion. CONCLUSIONS The ATiFL has a constant distal fascicle that is in contact with the talus in the neutral position and in plantar flexion. Contact disappears in maximum dorsiflexion.
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Affiliation(s)
- Miki Dalmau-Pastor
- Human Anatomy and Embryology Unit, Department of Pathology and Experimental Therapeutics, University of Barcelona, Barcelona, Spain. .,Manresa Health Science School, University of Vic-Central University of Catalonia, Barcelona, Vic, Spain. .,GRECMIP (Groupe de Recherche et d'Etude en Chirurgie Mini-Invasive du Pied), Mérignac, France.
| | - F Malagelada
- Human Anatomy and Embryology Unit, Department of Pathology and Experimental Therapeutics, University of Barcelona, Barcelona, Spain.,Department of Trauma and Orthopaedic Surgery, Royal London Hospital, Barts Health NHS Trust, London, UK
| | - G M M J Kerkhoffs
- Department of Orthopedic Surgery, Amsterdam University Medical Centers, Amsterdam Movement Sciences, Amsterdam, The Netherlands.,Academic Center for Evidence-based Sports Medicine (ACES), Academic Medical Center, Amsterdam, The Netherlands.,Amsterdam Collaboration on Health and Safety in Sports (ACHSS), AMC/VUmc IOC Research Center, Amsterdam, The Netherlands
| | - J Karlsson
- Department of Orthopaedics, Sahlgrenska University Hospital, Sahlgrenska Academy, Gothenburg University, Göthenburg, Sweden
| | - M C Manzanares
- Human Anatomy and Embryology Unit, Department of Pathology and Experimental Therapeutics, University of Barcelona, Barcelona, Spain
| | - J Vega
- Human Anatomy and Embryology Unit, Department of Pathology and Experimental Therapeutics, University of Barcelona, Barcelona, Spain.,GRECMIP (Groupe de Recherche et d'Etude en Chirurgie Mini-Invasive du Pied), Mérignac, France.,Foot and Ankle Unit, Hospital Quirón Barcelona, Barcelona, Spain
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22
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Vega J, Karlsson J, Kerkhoffs GMMJ, Dalmau-Pastor M. Ankle arthroscopy: the wave that's coming. Knee Surg Sports Traumatol Arthrosc 2020; 28:5-7. [PMID: 31784780 DOI: 10.1007/s00167-019-05813-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 11/19/2019] [Indexed: 12/18/2022]
Affiliation(s)
- J Vega
- Human Anatomy Unit, Department of Pathology and Experimental Therapeutics, School of Medicine, University of Barcelona, C/ Feixa Llarga, s/n, Hospitalet de Llobregat, 09806, Barcelona, Spain
- GRECMIP-MIFAS (Groupe de Recherche et d'Etude en Chirurgie Mini-Invasive du Pied-Minimally Invasive Foot and Ankle Society), Merignac, France
- Foot and Ankle Unit, iMove Tres Torres, Barcelona, Spain
| | - J Karlsson
- Department of Orthopaedics, Sahlgrenska University Hospital, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden
| | - G M M J Kerkhoffs
- Chair Department of Orthopedic Surgery, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
- Chair Academic Center for Evidence Based Sports Medicine (ACES), Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
- Co-Chair Amsterdam Collaboration for Health and Safety in Sports (ACHSS), AMC/VUmc IOC Research Center, Amsterdam, The Netherlands
| | - M Dalmau-Pastor
- Human Anatomy Unit, Department of Pathology and Experimental Therapeutics, School of Medicine, University of Barcelona, C/ Feixa Llarga, s/n, Hospitalet de Llobregat, 09806, Barcelona, Spain.
- GRECMIP-MIFAS (Groupe de Recherche et d'Etude en Chirurgie Mini-Invasive du Pied-Minimally Invasive Foot and Ankle Society), Merignac, France.
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23
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Johansson L, Svensson HK, Karlsson J, Olsson LE, Mellström D, Lorentzon M, Sundh D. Decreased physical health-related quality of life-a persisting state for older women with clinical vertebral fracture. Osteoporos Int 2019; 30:1961-1971. [PMID: 31227884 PMCID: PMC6795611 DOI: 10.1007/s00198-019-05044-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 06/03/2019] [Indexed: 11/03/2022]
Abstract
UNLABELLED In a population-based study of older Swedish women, we investigated if clinical vertebral fracture was associated with lower health-related quality of life (HRQoL) and determined whether the association remained over time. Clinical vertebral fracture was associated with lower HRQoL and the effect persisted for up to 18.9 years. INTRODUCTION Vertebral fractures are often associated with back pain and reduced physical function, which might result in isolation and depression. As a result, women with vertebral fractures often have lower health-related quality of life (HRQoL), but during what time frame the decrease lingers is unclear. Therefore, the aim of this study was to investigate if clinical vertebral fracture and hip fracture were associated with lower HRQoL and to determine whether the associations remained over time. METHODS Vertebral fracture assessments (VFA) were performed using dual-energy X-ray absorptiometry. Data regarding prior fractures, medications, medical history, and physical activity was collected using a questionnaire. Self-rated physical HRQoL was assessed using the 12-Item Short-Form Health Survey (SF-12). Women with clinical vertebral fractures were divided into tertiles according to time since fracture onset and their HRQoL was compared with non-fractured women. RESULTS In a population-based cross-sectional study of 3028 women aged 77.8 ± 1.63 (mean ± SD), a total of 130 (4.3%) women reported at least one clinical vertebral fracture. Women with a clinical vertebral fracture, divided into tertiles (T1-T3) depending on time since the fracture occurred, had lower HRQoL (T1: 36.3 ± 10.8; T2: 41.0 ± 9.94; and T3:41.6 ± 11.4) than women without fracture (46.2 ± 10.6; p < 0.001). Using linear regression analysis, clinical vertebral fracture was associated with reduced physical HRQoL for up to 18.9 years, independently of covariates (age, height, weight, smoking, prior stroke, mental HRQoL, grip strength, and lumbar spine BMD). CONCLUSIONS Clinical vertebral fracture was associated with lower self-rated physical HRQoL, for up to 18.9 years after time of fracture.
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Affiliation(s)
- L Johansson
- Geriatric Medicine, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Department of Orthopedics, Sahlgrenska University Hospital, Mölndal, Sweden
| | - H K Svensson
- Institute of Health and Care Sciences, Sahlgrenska Academy, University of Gothenburg, PO Box 457, SE 405 30, Gothenburg, Sweden
- Gothenburg Centre for Person-Centered Care (GPCC), University of Gothenburg, Gothenburg, Sweden
- Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - J Karlsson
- Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - L-E Olsson
- Institute of Health and Care Sciences, Sahlgrenska Academy, University of Gothenburg, PO Box 457, SE 405 30, Gothenburg, Sweden
- Gothenburg Centre for Person-Centered Care (GPCC), University of Gothenburg, Gothenburg, Sweden
- Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - D Mellström
- Geriatric Medicine, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Geriatric Medicine, Sahlgrenska University Hospital, Mölndal, Sweden
| | - M Lorentzon
- Geriatric Medicine, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Geriatric Medicine, Sahlgrenska University Hospital, Mölndal, Sweden
| | - D Sundh
- Geriatric Medicine, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden.
- Sahlgrenska University Hospital, Building K, 6th Floor, 431 80, Mölndal, Sweden.
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Affiliation(s)
- G M M J Kerkhoffs
- Department of Orthopedic Surgery, Amsterdam Movement Sciences, Amsterdam University Medical Centers, Amsterdam, The Netherlands.,Academic Center for Evidence Based Sports Medicine (ACES), Amsterdam, The Netherlands.,Amsterdam Collaboration for Health and Safety in Sports (ACHSS)AMC/VUmc IOC Research Center, Amsterdam, The Netherlands
| | - J Karlsson
- Department of Orthopaedics, Sahlgrenska University Hospital, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden.
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Karlsson J, Solem K, Jablonowski R, Seeman F, Borgquist R, Heiberg E, Arheden H, Carlsson M. P157The relationship between longitudinal function and symptoms in patients with heart failure with reduced ejection fraction. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez117.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- J Karlsson
- Lund University, Department of Clinical Sciences Lund, Clinical Physiology, Lund, Sweden
| | | | - R Jablonowski
- Lund University, Department of Clinical Sciences Lund, Clinical Physiology, Lund, Sweden
| | - F Seeman
- Lund University, Department of Clinical Sciences Lund, Clinical Physiology, Lund, Sweden
| | - R Borgquist
- Lund University, Department of Clinical Sciences Lund, Cardiology, Sweden, Lund, Sweden
| | - E Heiberg
- Lund University, Department of Clinical Sciences Lund, Clinical Physiology, Lund, Sweden
| | - H Arheden
- Lund University, Department of Clinical Sciences Lund, Clinical Physiology, Lund, Sweden
| | - M Carlsson
- Lund University, Department of Clinical Sciences Lund, Clinical Physiology, Lund, Sweden
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Serikova S, Pokrovsky OS, Laudon H, Krickov IV, Lim AG, Manasypov RM, Karlsson J. High carbon emissions from thermokarst lakes of Western Siberia. Nat Commun 2019; 10:1552. [PMID: 30948722 PMCID: PMC6449335 DOI: 10.1038/s41467-019-09592-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 03/20/2019] [Indexed: 11/09/2022] Open
Abstract
The Western Siberia Lowland (WSL), the world's largest permafrost peatland, is of importance for understanding the high-latitude carbon (C) cycle and its response to climate change. Warming temperatures increase permafrost thaw and production of greenhouse gases. Also, permafrost thaw leads to the formation of lakes which are hotspots for atmospheric C emissions. Although lakes occupy ~6% of WSL, lake C emissions from WSL remain poorly quantified. Here we show high C emissions from lakes across all permafrost zones of WSL. The C emissions were especially high in shoulder seasons and in colder permafrost-rich regions. The total C emission from permafrost-affected lakes of WSL equals ~12 ± 2.6 Tg C yr-1 and is 2-times greater than region's C export to the Arctic coast. The results show that C emission from WSL lakes is a significant component in the high-latitude C cycle, but also suggest that C emission may decrease with warming.
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Affiliation(s)
- S Serikova
- Climate Impacts Research Centre (CIRC), Department of Ecology and Environmental Science, Umeå University, Linnaeus väg 6, 901 87, Umeå, Sweden.
| | - O S Pokrovsky
- GET UMR 5563 CNRS, Geoscience and Environment, University of Toulouse, 14 Avenue Edouard Belin, 31400, Toulouse, France
| | - H Laudon
- Department of Forest Ecology and Management, The Swedish University of Agricultural Sciences, Skogsmarksgränd, 901 83, Umeå, Sweden
| | - I V Krickov
- BIO-GEO-CLIM Laboratory, Tomsk State University, Lenina 36, 634050, Tomsk, Russia
| | - A G Lim
- BIO-GEO-CLIM Laboratory, Tomsk State University, Lenina 36, 634050, Tomsk, Russia
| | - R M Manasypov
- BIO-GEO-CLIM Laboratory, Tomsk State University, Lenina 36, 634050, Tomsk, Russia.,N. Laverov Federal Center for Integrated Arctic Research, IEPS, Russian Academy of Sciences, Nab. Severnoi Dviny 23, Arkhangelsk, 163000, Russia
| | - J Karlsson
- Climate Impacts Research Centre (CIRC), Department of Ecology and Environmental Science, Umeå University, Linnaeus väg 6, 901 87, Umeå, Sweden.
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27
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Baresel C, Ek M, Ejhed H, Allard AS, Magnér J, Dahlgren L, Westling K, Wahlberg C, Fortkamp U, Söhr S, Harding M, Fång J, Karlsson J. Sustainable treatment systems for removal of pharmaceutical residues and other priority persistent substances. Water Sci Technol 2019; 79:537-543. [PMID: 30924808 DOI: 10.2166/wst.2019.080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Pharmaceutical residues and other emerging substances commonly summarised as micropollutants pass through wastewater treatment plants (WWTPs) and end up in the receiving waters and sludge. Many studies have investigated the removal efficiency of various techniques but a holistic evaluation of various relevant treatment alternatives regarding both the removal efficiency for various micropollutants, investment and operating costs, environmental impacts and future comprehensiveness is still lacking. This paper provides the results from a large 3-year project about the evaluation of sustainable treatment systems for removal of various micropollutants or disruptive effects at Swedish WWTPs and their environmental, economic and future sustainability. The presented results are based on our own pilot tests and related assessment and modelling efforts and provide a holistic view on advanced treatment of wastewater for removal of micropollutants.
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Affiliation(s)
- C Baresel
- IVL Swedish Environmental Research Institute, Stockholm, Sweden E-mail:
| | - M Ek
- IVL Swedish Environmental Research Institute, Stockholm, Sweden E-mail:
| | - H Ejhed
- IVL Swedish Environmental Research Institute, Stockholm, Sweden E-mail:
| | - A-S Allard
- IVL Swedish Environmental Research Institute, Stockholm, Sweden E-mail:
| | - J Magnér
- IVL Swedish Environmental Research Institute, Stockholm, Sweden E-mail:
| | - L Dahlgren
- IVL Swedish Environmental Research Institute, Stockholm, Sweden E-mail:
| | - K Westling
- IVL Swedish Environmental Research Institute, Stockholm, Sweden E-mail:
| | - C Wahlberg
- Stockholm Vatten och Avfall, Stockholm, Sweden
| | - U Fortkamp
- IVL Swedish Environmental Research Institute, Stockholm, Sweden E-mail:
| | - S Söhr
- Sydvästra Stockholmsregionens VA-verksaktiebolag - SYVAB, Grödinge, Sweden
| | - M Harding
- IVL Swedish Environmental Research Institute, Stockholm, Sweden E-mail:
| | - J Fång
- IVL Swedish Environmental Research Institute, Stockholm, Sweden E-mail:
| | - J Karlsson
- IVL Swedish Environmental Research Institute, Stockholm, Sweden E-mail:
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Deininger A, Jonsson A, Karlsson J, Bergström AK. Pelagic food webs of humic lakes show low short-term response to forest harvesting. Ecol Appl 2019; 29:e01813. [PMID: 30312509 DOI: 10.1002/eap.1813] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 08/04/2018] [Accepted: 09/05/2018] [Indexed: 06/08/2023]
Abstract
Forest harvest in the boreal zone can increase the input of terrestrial materials such as dissolved organic carbon (DOC) and nitrate (NO3- ) into nearby aquatic ecosystems, with potential effects on phytoplankton growth through enhanced nutrient (i.e., positive) or reduced light availability (i.e., negative), which may affect ecosystem productivity and consumer resource use. Here, we conducted forest clear-cutting experiments in the catchments of four small, humic, and nitrogen-limited unproductive boreal lakes (two controls and two clear-cut, 18% and 44% of area cut) with one reference and two impact years. Our aim was to assess the effects of forest clear-cutting on pelagic biomass production and consumer resource use. We found that pelagic biomass production did not change after two years of forest clear-cutting: Pelagic primary and bacterial production (PP, BP), PP:BP ratio, chl a, and seston carbon (seston C) were unaffected by clear-cutting; neither did tree harvest affect seston stoichiometry (i.e., N:phosphorus [P], C:P) nor induce changes in zooplankton resource use, biomass, or community composition. In conclusion, our findings suggest that pelagic food webs of humic lakes (DOC > 15 mg/L) might be resilient to a moderate form of forest clear-cutting, at least two years after tree removal, before mechanical site preparation (e.g., mounding, plowing) and when leaving buffer strips along lakes and incoming streams. Thus, pelagic food web responses to forest clear-cutting might not be universal, but could depend on factors such as the time scale, share of catchment logged, and the forest practices involved, including the application of buffer strips and site preparation.
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Affiliation(s)
- A Deininger
- Department of Ecology and Environmental Science, Umeå University, Umeå, Sweden
- Norwegian Institute for Water Research (NIVA), Oslo, Norway
- Department of Natural Sciences, University of Agder, Kristiansand, Norway
| | - A Jonsson
- Department of Ecology and Environmental Science, Umeå University, Umeå, Sweden
| | - J Karlsson
- Department of Ecology and Environmental Science, Umeå University, Umeå, Sweden
| | - A-K Bergström
- Department of Ecology and Environmental Science, Umeå University, Umeå, Sweden
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Karlsson J, Wallin M, Hallbäck M, Lönnqvist PA. Capnodynamic determination of cardiac output in hypoxia-induced pulmonary hypertension in pigs. Br J Anaesth 2018; 122:335-341. [PMID: 30770051 DOI: 10.1016/j.bja.2018.10.064] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 10/22/2018] [Accepted: 10/23/2018] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND Effective pulmonary blood flow (COEPBF) has recently been validated for its ability to measure cardiac output (CO) in children and animals. This study compared COEPBF with the Fick method (COFick) and CO measurements using an invasive pulmonary artery flow probe (COTS). The aim of the study was to validate COEPBF against these reference methods in a porcine model of hypoxia-induced selective pulmonary hypertension. METHODS Ten anaesthetised mechanically ventilated piglets (median weight 23.9 kg) were exposed to a hypoxic gas mixture inducing selective pulmonary hypertension. Pulmonary hypertension was subsequently reversed with inhaled nitric oxide. Simultaneous recordings of COEPBF, COFick, and COTS were performed throughout the protocol and examined for agreement and trending ability. RESULTS Overall bias (Bland-Altman) between COEPBF and COTS was 0.2 L min-1 (limits of agreement -0.5 and +0.9 L min-1) with a mean percentage error of 25%. Overall bias between COEPBF and COFick was -0.1 L min-1 (limits of agreement -0.9 and +0.6 L min-1) and a mean percentage error of 25%. The concordance rate was 86% for COEPBF when compared with COTS using a 10% exclusion zone. CONCLUSIONS Estimation of CO with COEPBF results in values very close to the gold standard reference methods COFick and COTS. COEPBF appears to be an accurate tool for monitoring absolute values and changes in CO during hypoxia-induced pulmonary hypertension and inhaled nitric oxide treatment.
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Affiliation(s)
- J Karlsson
- Department of Physiology and Pharmacology (FYFA), C3, Eriksson I Lars Group, Section of Anesthesiology and Intensive Care, Karolinska Institute, Stockholm, Sweden; Pediatric Perioperative Medicine and Intensive Care, Karolinska University Hospital, Stockholm, Sweden.
| | - M Wallin
- Department of Physiology and Pharmacology (FYFA), C3, Eriksson I Lars Group, Section of Anesthesiology and Intensive Care, Karolinska Institute, Stockholm, Sweden; Maquet Critical Care AB, Solna, Sweden
| | | | - P A Lönnqvist
- Department of Physiology and Pharmacology (FYFA), C3, Eriksson I Lars Group, Section of Anesthesiology and Intensive Care, Karolinska Institute, Stockholm, Sweden; Pediatric Perioperative Medicine and Intensive Care, Karolinska University Hospital, Stockholm, Sweden
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30
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Li D, Jin H, Chernogubova E, Pelisek J, Karlsson J, Sennblad B, Liu S. H19 Induces AAA Development and Progression. J Vasc Surg 2018. [DOI: 10.1016/j.jvs.2018.07.015] [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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Galli S, Stocchero M, Andersson M, Karlsson J, He W, Lilin T, Wennerberg A, Jimbo R. Correction to: The effect of magnesium on early osseointegration in osteoporotic bone: a histological and gene expression investigation. Osteoporos Int 2018; 29:1931. [PMID: 29971456 PMCID: PMC6828404 DOI: 10.1007/s00198-018-4497-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
This article was originally published under a CC BY-NC-ND 4.0 license, but has now been made available under a CC BY 4.0 license. The PDF and HTML versions of the paper have been modified accordingly.
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Affiliation(s)
- S Galli
- Department of Prosthodontics, Faculty of Odontology, Malmö University, Malmö, Sweden.
| | - M Stocchero
- Department of Prosthodontics, Faculty of Odontology, Malmö University, Malmö, Sweden
- Department of Oral and Maxillofacial Surgery and Oral Medicine, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - M Andersson
- Department of Chemistry and Chemical Engineering, Applied Chemistry, Chalmers University of Technology, Gothenburg, Sweden
| | - J Karlsson
- Department of Chemistry and Chemical Engineering, Applied Chemistry, Chalmers University of Technology, Gothenburg, Sweden
| | - W He
- Department of Chemistry and Chemical Engineering, Applied Chemistry, Chalmers University of Technology, Gothenburg, Sweden
| | - T Lilin
- Center for Biomedical Research, ECole Nationale Vétérinaire d'Alfort, Maisons Alfort, France
| | - A Wennerberg
- Department of Prosthodontics, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - R Jimbo
- Department of Oral and Maxillofacial Surgery and Oral Medicine, Faculty of Odontology, Malmö University, Malmö, Sweden
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32
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Karlsson J, Winberg P, Scarr B, Lönnqvist PA, Neovius E, Wallin M, Hallbäck M. Validation of capnodynamic determination of cardiac output by measuring effective pulmonary blood flow: a study in anaesthetised children and piglets. Br J Anaesth 2018; 121:550-558. [PMID: 30115252 DOI: 10.1016/j.bja.2018.02.034] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 02/27/2018] [Accepted: 03/03/2018] [Indexed: 10/17/2022] Open
Abstract
BACKGROUND Effective pulmonary blood flow (COEPBF) has recently been validated as a technique for determining cardiac output (CO) in animals of varying sizes. The primary aim of our study was to investigate this new technique in paediatric surgical patients, compared with suprasternal two-dimensional Doppler (COSSD). METHODS A total of 15 children undergoing cleft lip/palate surgery were investigated. Before the start of surgery, manoeuvres that were anticipated to reduce (increase in PEEP from 3 to 10 cm H2O) and increase (atropine) CO were undertaken. A study in mechanically ventilated piglets was also undertaken under general anaesthesia, measuring COEPBF and pulmonary artery (COTS) flow by ultrasonic probe as the comparator. Bias (Bland-Altman plots) and limits of agreement were assessed for effective pulmonary blood flow and COSSD or COTS. RESULTS In paediatric patients (median age 8.5 months), overall bias was -8.1 (limits of agreement -82 to +66) ml kg-1 min-1, with a mean percentage error of 48% and a concordance rate of 64%. In the piglet model, overall bias was -1 (-36 to +38) ml kg-1 min-1, with a mean percentage error of 31% and a concordance rate of 95%. CONCLUSIONS Under controlled experimental conditions, COEPBF is associated with excellent agreement and good trending ability when compared with the gold standard COTS. In the paediatric clinical setting, COEPBF performs well; by contrast, COSSD, an operator- and anatomy-dependent technology, appears less reliable than COEPBF.
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Affiliation(s)
- J Karlsson
- Karolinska Institute Department of Physiology and Pharmacology, Section of Anesthesiology and Intensive Care, Stockholm, Sweden; Pediatric Perioperative Medicine and Intensive Care, Karolinska University Hospital, Stockholm, Sweden.
| | - P Winberg
- Department of Pediatric Cardiology, Karolinska University Hospital, Stockholm, Sweden
| | - B Scarr
- Pediatric Perioperative Medicine and Intensive Care, Karolinska University Hospital, Stockholm, Sweden
| | - P A Lönnqvist
- Karolinska Institute Department of Physiology and Pharmacology, Section of Anesthesiology and Intensive Care, Stockholm, Sweden; Pediatric Perioperative Medicine and Intensive Care, Karolinska University Hospital, Stockholm, Sweden
| | - E Neovius
- Reconstructive Plastic Surgery, Karolinska University Hospital, Stockholm, Sweden
| | - M Wallin
- Karolinska Institute Department of Physiology and Pharmacology, Section of Anesthesiology and Intensive Care, Stockholm, Sweden; Maquet Critical Care, Solna, Sweden
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Musahl V, Zaffagnini S, LaPrade R, Hirschmann MT, Karlsson J. Erratum to: The challenge of treating complex knee instability. Knee Surg Sports Traumatol Arthrosc 2017; 25:3987. [PMID: 27535676 DOI: 10.1007/s00167-016-4267-y] [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: 11/26/2022]
Affiliation(s)
- V Musahl
- University of Pittsburgh Medical Center, Pittsburgh, PA, USA.
| | - S Zaffagnini
- Istituto Ortopedico Rizzoli, Laboratorio di Biomeccanica e Innovazione Tecnologica, Bologna, BO, Italy
- Dipartimento Scienze Biomediche e Neuromotorie, Università di Bologna, Bologna, BO, Italy
| | - R LaPrade
- University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - M T Hirschmann
- University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - J Karlsson
- University of Pittsburgh Medical Center, Pittsburgh, PA, USA
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Karlsson J. Artificial Photosynthesis: Faraday Discussion. Johnson Matthey Technology Review 2017. [DOI: 10.1595/205651317x696234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Svensson HK, Olsson LE, Hansson T, Karlsson J, Hansson-Olofsson E. The effects of person-centered or other supportive interventions in older women with osteoporotic vertebral compression fractures-a systematic review of the literature. Osteoporos Int 2017; 28:2521-2540. [PMID: 28585054 PMCID: PMC5550548 DOI: 10.1007/s00198-017-4099-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Accepted: 05/16/2017] [Indexed: 01/25/2023]
Abstract
Vertebral compression fracture (VCF) is a common fragility fracture and the starting point of a lasting, painful, disabling condition. The aim was to summarize evidence of person-centered/non-medical interventions supporting women with VCF. Results show small numbers of studies with only probable effect on function, pain, QoL, fear of falling, and psychological symptoms. The vertebral compression fracture (VCF) caused by osteoporosis is the third most common fragility fracture worldwide. Previously, it was believed that the pain caused by VCF was self-subsiding within weeks or a few months post-fracture. However, this positive prognosis has been refuted by studies showing that, for the great majority of patients, the VCF was the starting point of a long-lasting, severely painful, and disabling condition. The low number of studies focusing on the experience of the natural course of VCF, and what support is available and how it is perceived by those affected, calls for further investigation. Strengthening older patients' sense of security and increasing confidence in their own abilities are of great importance for successful rehabilitation following VCF. More research is needed to identify resources, possibilities, and strategies that can assist older patients to reach their goals to improve well-being. The purpose of this systematic review was to identify and summarize the current evidence of person-centered or other structured non-medical/non-surgical interventions supporting older women after experiencing an osteoporotic VCF. A systematic literature search was conducted on the MeSH terms encompassing osteoporosis and vertebral compression fractures in the PubMed-MEDLINE and Cumulative Index for Nursing and Allied Health Literature (CINAHL) databases during March through June 2015. The initial search identified 8789 articles, but only seven articles (six randomized controlled trials and one observational study with a control group) met the inclusion criteria. It became evident from the current study that the availability of evidence on the effects of non-medical interventions aiming to support older women with VCF is limited, to say the least. The trials included in this review have few limitations and were mainly considered to be of moderate quality. This systematic literature review suggests that non-medical interventions aiming to support older women with VCF might decrease levels of pain and use of analgesic as well as promote improved physical mobility and function. These interventions would probably result in an improved difference in experiences of fear of falling and perceived psychological symptoms, but would only slightly improve quality of life. However, given the nature of the seven studies, potential biases in patient selection, issues around precision with small cohorts, and failure to control for confounders, makes it difficult to draw a definitive conclusion about the significant effects of non-medical interventions. Incurring a VCF is a complex and diverse event, necessitating equally complex interventions to identify new ways forward. However, to date, interventions struggle with a risk of selection bias in that only the needs of the healthiest of the population are addressed and the voices of the remaining majority of the people affected by VCF are unheard.
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Affiliation(s)
- H K Svensson
- Institute of Health and Care Sciences, Sahlgrenska Academy, University of Gothenburg, PO Box 457, SE-405 30, Gothenburg, Sweden.
- Gothenburg Centre for Person-Centered Care (GPCC), University of Gothenburg, Gothenburg, Sweden.
- Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
| | - L-E Olsson
- Institute of Health and Care Sciences, Sahlgrenska Academy, University of Gothenburg, PO Box 457, SE-405 30, Gothenburg, Sweden
- Gothenburg Centre for Person-Centered Care (GPCC), University of Gothenburg, Gothenburg, Sweden
- Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - T Hansson
- Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - J Karlsson
- Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - E Hansson-Olofsson
- Institute of Health and Care Sciences, Sahlgrenska Academy, University of Gothenburg, PO Box 457, SE-405 30, Gothenburg, Sweden
- Gothenburg Centre for Person-Centered Care (GPCC), University of Gothenburg, Gothenburg, Sweden
- Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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Galli S, Stocchero M, Andersson M, Karlsson J, He W, Lilin T, Wennerberg A, Jimbo R. The effect of magnesium on early osseointegration in osteoporotic bone: a histological and gene expression investigation. Osteoporos Int 2017; 28:2195-2205. [PMID: 28349251 PMCID: PMC5486930 DOI: 10.1007/s00198-017-4004-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Accepted: 03/08/2017] [Indexed: 12/27/2022]
Abstract
UNLABELLED Magnesium has a key role in osteoporosis and could enhance implant osseointegration in osteoporotic patients. Titanium implants impregnated with Mg ions were installed in the tibia of ovariectomized rats. The release of Mg induced a significant increase of bone formation and the expression of anabolic markers in the peri-implant bone. INTRODUCTION The success of endosseous implants is highly predictable in patients possessing normal bone status, but it may be impaired in patients with osteoporosis. Thus, the application of strategies that adjuvate implant healing in compromized sites is of great interest. Magnesium has a key role in osteoporosis prevention and it is an interesting candidate for this purpose. In this study, the cellular and molecular effects of magnesium release from implants were investigated at the early healing stages of implant integration. METHODS Osteoporosis was induced in 24 female rats by means of ovariectomy and low-calcium diet. Titanium mini-screws were coated with mesoporous titania films and were loaded with magnesium (test group) or left as native (control group). The implants were inserted in the tibia and femur of the rats. One, 2 and 7 days after implantation, the implants were retrieved and histologically examined. In addition, expression of genes was evaluated in the peri-implant bone tissue at day 7 by means of quantitative polymerase chain reactions with pathway-oriented arrays. RESULTS The histological evaluation revealed that new bone formation started already during the first week of healing for both groups. However, around the test implants, new bone was significantly more abundant and spread along a larger surface of the implants. In addition, the release of magnesium induced a significantly higher expression of BMP6. CONCLUSIONS These results provide evidence that the release of magnesium promoted rapid bone formation and the activation of osteogenic signals in the vicinity of implants placed in osteoporotic bone.
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Affiliation(s)
- S Galli
- Department of Prosthodontics, Faculty of Odontology, Malmö University, 205 06, Malmö, Sweden.
| | - M Stocchero
- Department of Prosthodontics, Faculty of Odontology, Malmö University, 205 06, Malmö, Sweden
- Department of Oral and Maxillofacial Surgery and Oral Medicine, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - M Andersson
- Department of Chemistry and Chemical Engineering, Applied Chemistry, Chalmers University of Technology, 412 96, Gothenburg, Sweden
| | - J Karlsson
- Department of Chemistry and Chemical Engineering, Applied Chemistry, Chalmers University of Technology, 412 96, Gothenburg, Sweden
| | - W He
- Department of Chemistry and Chemical Engineering, Applied Chemistry, Chalmers University of Technology, 412 96, Gothenburg, Sweden
| | - T Lilin
- Center for Biomedical Research, ECole Nationale Vétérinaire d'Alfort, 94700, Maisons Alfort, France
| | - A Wennerberg
- Department of Prosthodontics, Faculty of Odontology, Malmö University, 205 06, Malmö, Sweden
| | - R Jimbo
- Department of Oral and Maxillofacial Surgery and Oral Medicine, Faculty of Odontology, Malmö University, Malmö, Sweden
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Emgård-Mattson M, Karlsson J, Nakao N, Brundin P. Addition of Lateral Ganglionic Eminence to Rat Mesencephalic Grafts Affects Fiber Outgrowth but Does not Enhance Function. Cell Transplant 2017; 6:277-86. [PMID: 9171160 DOI: 10.1177/096368979700600310] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [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: 11/16/2022] Open
Abstract
Addition of embryonic striatal tissue, usually as a combination of the lateral and medial ganglionic eminences, to intrastriatal mesencephalic grafts has previously been reported to enhance recovery of drug-induced rotational behavior in the host and to modify axonal fiber outgrowth from the grafted dopaminergic neurons. This study investigated the effects of adding (cografting) either lateral or medial ganglionic eminence tissue to embryonic mesencephalic grafts implanted intrastriatally, in rats with unilateral 6-hydroxydopamine lesions. The cografts did not exhibit increased survival or cell size of dopaminergic neurons when compared to transplants of mesencephalic tissue alone. Neither did recipients of cografts exhibit any enhancement of graft-induced recovery of function, when tested for drug-induced rotational behavior or forelimb function in the staircase test. However, cografts containing lateral ganglionic eminence displayed patches of dense tyrosine hydroxylase-immunoreactive fibers within the graft tissue. These patches largely coincided with patches in adjacent stained sections, which were rich in immunostaining for the striatal-specific marker dopamine- and cyclic AMP-regulated phosphoprotein-32 (DARPP-32). Such patches were not present in rats receiving cografts containing medial ganglionic eminence or mesencephalic tissue alone. Thus, it seems that the grafted dopaminergic neurons preferentially grow into the areas of the transplants containing lateral ganglionic eminence tissue. In summary, the results suggest that embryonic lateral ganglionic eminence exerts trophic effects on the outgrowth of dopaminergic axons, but does not enhance the behavioral effects of grafted dopaminergic neurons.
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Affiliation(s)
- M Emgård-Mattson
- Department of Physiology and Neuroscience, University of Lund, Sweden
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Kumagai H, Hammarström L, Whang DR, Shinohara Y, Martinez J, Karlsson J, Summers P, Windle CD, Kodera M, Cogdell R, Tolod KR, Apaydin DH, Fujita E, Kibler A, Fan F, Gibson EA, Usami H, Iwase A, Inoue H, Kudo A, Gust D, Domen K, Cassiola F, Takagi K, Kang SO, Yamakata A, Li C, Sun L, Park H, Kang YS, Li R, Di Fonzo F, Setoyama T, Ishitani O. Inorganic assembly catalysts for artificial photosynthesis: general discussion. Faraday Discuss 2017; 198:481-507. [PMID: 28530749 DOI: 10.1039/c7fd90018j] [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: 11/21/2022]
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Affiliation(s)
- J. Karlsson
- Chalmers University of Technology, Department of Reactor Physics S-412 96 Göteborg, Sweden
| | - I. Pázsit
- Chalmers University of Technology, Department of Reactor Physics S-412 96 Göteborg, Sweden
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Artero V, Hammarström L, Fan F, Whang DR, Martinez J, Harriman A, Noguchi T, Karlsson J, Summers P, Itoh S, Cogdell R, Kibler A, Ehrmaier J, Tamiaki H, Fujita E, Shima S, Yoshino S, Inoue H, Wasielewski M, Corry T, Gust D, Cassiola F, Ishida H, Takagi K, Kang SO, Li C, Sun L, Park H, Hashimoto H, Amao Y, Son EJ, Kamiya N, Shen JR, Yamaguchi K. Biological approaches to artificial photosynthesis, fundamental processes and theoretical approaches: general discussion. Faraday Discuss 2017; 198:147-168. [DOI: 10.1039/c7fd90016c] [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: 11/21/2022]
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Wang M, Artero V, Hammarström L, Martinez J, Karlsson J, Gust D, Summers P, Machan C, Brueggeller P, Windle CD, Kageshima Y, Cogdell R, Tolod KR, Kibler A, Apaydin DH, Fujita E, Ehrmaier J, Shima S, Gibson E, Karadas F, Harriman A, Inoue H, Kudo A, Takayama T, Wasielewski M, Cassiola F, Yagi M, Ishida H, Franco F, Kang SO, Nocera D, Li C, Di Fonzo F, Park H, Sun L, Setoyama T, Kang YS, Ishitani O, Shen JR, Son HJ, Masaoka S. Molecular catalysts for artificial photosynthesis: general discussion. Faraday Discuss 2017; 198:353-395. [DOI: 10.1039/c7fd90017a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Andersson JK, Axelsson P, Strömberg J, Karlsson J, Fridén J. Patients with triangular fibrocartilage complex injuries and distal radioulnar joint instability have reduced rotational torque in the forearm. J Hand Surg Eur Vol 2016; 41:732-8. [PMID: 26701974 DOI: 10.1177/1753193415622342] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 11/17/2015] [Indexed: 02/03/2023]
Abstract
UNLABELLED A total of 20 patients scheduled for wrist arthroscopy, all with clinical signs of rupture to the triangular fibrocartilage complex and distal radioulnar joint instability, were tested pre-operatively by an independent observer for strength of forearm rotation. During surgery, the intra-articular pathology was documented by photography and also subsequently individually analysed by another independent hand surgeon. Arthroscopy revealed a type 1-B injury to the triangular fibrocartilage complex in 18 of 20 patients. Inter-rater reliability between the operating surgeon and the independent reviewer showed absolute agreement in all but one patient (95%) in terms of the injury to the triangular fibrocartilage complex and its classification. The average pre-operative torque strength was 71% of the strength of the non-injured contralateral side in pronation and supination. Distal radioulnar joint instability with an arthroscopically verified injury to the triangular fibrocartilage complex is associated with a significant loss of both pronation and supination torque. LEVEL OF EVIDENCE Case series, Level IV.
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Affiliation(s)
- J K Andersson
- Department of Hand Surgery, Sahlgrenska University Hospital, Göteborg, Sweden Department of Orthopaedics, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
| | - P Axelsson
- Department of Hand Surgery, Sahlgrenska University Hospital, Göteborg, Sweden Department of Orthopaedics, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
| | - J Strömberg
- Department of Hand Surgery, Sahlgrenska University Hospital, Göteborg, Sweden Department of Orthopaedics, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden Centre for Advanced Reconstruction of Extremities, Sahlgrenska University Hospital, Mölndal, Sweden
| | - J Karlsson
- Department of Orthopaedics, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden Department of Orthopaedics, Sahlgrenska University Hospital, Mölndal, Sweden
| | - J Fridén
- Department of Hand Surgery, Sahlgrenska University Hospital, Göteborg, Sweden Centre for Advanced Reconstruction of Extremities, Sahlgrenska University Hospital, Mölndal, Sweden
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Svensson HK, Olofsson EH, Karlsson J, Hansson T, Olsson LE. A painful, never ending story: older women's experiences of living with an osteoporotic vertebral compression fracture. Osteoporos Int 2016; 27:1729-36. [PMID: 26659067 PMCID: PMC4839051 DOI: 10.1007/s00198-015-3445-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Accepted: 11/30/2015] [Indexed: 01/19/2023]
Abstract
UNLABELLED Vertebral compression fractures (VCF) cause pain and decreased physical ability, with no known well-established treatment. The aim of this study was to illuminate the experience of living with a VCF. The results show that fear and concerns are a major part of daily life. The women's initial contact with health-care providers should focus on making them feel acknowledged by offering person-centered and tailored support. INTRODUCTION In the past decade, osteoporotic-related fractures have become an increasingly common and costly public health problem worldwide. Vertebral compression fracture (VCF) is the second most common osteoporotic fracture, and patients with VCF describe an abrupt descent into disability, with a subsequent desire to regain independence in everyday life; however, little is known of their situation. The aim of this study was to illuminate the lived experience of women with an osteoporotic VCF. METHODS Ten women were interviewed during 2012-2013, starting with an open-ended question: could you tell me what it is like to live with a vertebral compression fracture? The verbatim transcribed interviews were analyzed using a phenomenological hermeneutical approach. RESULTS The narrative provided descriptions of living in turmoil and chaos, unable to find stability in their life with little improvement regarding pain and physical function. Shifts from periods of constant pain to periods of fear of constant pain created a loss of confidence and an increased sense of confinement. The structural analysis revealed fear and concerns as the most prominent experience building on five themes: struggling to understand a deceiving body, breakthrough pain fueling fear, fearing a trajectory into isolation, concerns of dependency, and fearing an uncertain future. CONCLUSIONS Until researchers find a successful prevention or medical/surgical treatment for osteoporotic VCFs, health-care providers and society abandon these women to remain in a painful and never ending story.
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Affiliation(s)
- H K Svensson
- Institute of Health and Care Sciences, Sahlgrenska Academy, University of Gothenburg, PO Box 457, SE 405 30, Gothenburg, Sweden.
- Gothenburg Centre for Person-Centred Care (GPCC), University of Gothenburg, Gothenburg, Sweden.
| | - E H Olofsson
- Institute of Health and Care Sciences, Sahlgrenska Academy, University of Gothenburg, PO Box 457, SE 405 30, Gothenburg, Sweden
- Gothenburg Centre for Person-Centred Care (GPCC), University of Gothenburg, Gothenburg, Sweden
| | - J Karlsson
- Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - T Hansson
- Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - L-E Olsson
- Institute of Health and Care Sciences, Sahlgrenska Academy, University of Gothenburg, PO Box 457, SE 405 30, Gothenburg, Sweden
- Gothenburg Centre for Person-Centred Care (GPCC), University of Gothenburg, Gothenburg, Sweden
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Dalmau-Pastor M, Yasui Y, Calder JD, Karlsson J, Kerkhoffs GMMJ, Kennedy JG. Anatomy of the inferior extensor retinaculum and its role in lateral ankle ligament reconstruction: a pictorial essay. Knee Surg Sports Traumatol Arthrosc 2016; 24:957-62. [PMID: 27023098 DOI: 10.1007/s00167-016-4082-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The inferior extensor retinaculum (IER) is an aponeurotic structure, which is in continuation with the anterior part of the sural fascia. The IER has often been used to augment the reconstruction of the lateral ankle ligaments, for instance in the Broström-Gould procedure, with good outcomes reported. However, its anatomy has not been described in detail and only a few studies are available on this structure. The presence of a non-constant oblique supero-lateral band appears to be important. This structure defines whether the augmentation of the lateral ankle ligaments reconstruction is performed using true IER or only the anterior part of the sural fascia. It is concluded that the use of this structure will have an impact on the resulting ankle stability.
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Affiliation(s)
- M Dalmau-Pastor
- Laboratory of Arthroscopic and Surgical Anatomy, Human and Embryologic Anatomy Unit, Department of Pathology and Experimental Therapeutics, School of Medicine, University of Barcelona, Barcelona, Spain. .,Faculty of Health Sciences at Manresa, University of Vic - Central University of Catalonia, Manresa, Barcelona, Spain.
| | - Y Yasui
- Teikyo University Department of Orthopaedic Surgery, Tokyo, Japan.,Hospital for Special Surgery, New York, NY, USA
| | - J D Calder
- Fortius Clinic, London, UK.,Imperial College, London, UK
| | - J Karlsson
- Department of Orthopaedics, Sahlgrenska University Hospital, Sahlgrenska Academy, Gothenburg University, Göthenburg, Sweden
| | - G M M J Kerkhoffs
- Department of Orthopedic Surgery, Academic Medical Center, University of Amsterdam, 1105 AZ, Amsterdam, The Netherlands.,Academic Center of Evidence Based Sports Medicine (ACES), Amsterdam Collaboration for Health and Safety in Sports (ACHSS), AMC/VUmc IOC Research Center, Amsterdam, The Netherlands
| | - J G Kennedy
- Hospital for Special Surgery, New York, NY, USA
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Affiliation(s)
- G M M J Kerkhoffs
- Department of Orthopedic Surgery, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands. .,Academic Center for Evidence Based Sports Medicine (ACES), Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands. .,Amsterdam Collaboration for Health and Safety in Sports (ACHSS), AMC/VUmc IOC Research Center, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
| | - J G Kennedy
- Hospital for Special Surgery, New York, NY, USA.,Weil Cornell University, New York, NY, USA
| | - J D F Calder
- Fortius Clinic, London, UK.,Imperial College, London, UK
| | - J Karlsson
- Department of Orthopaedics, Sahlgrenska University Hospital, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden
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Sansone M, Ahldén M, Jónasson P, Thomeé C, Swärd L, Öhlin A, Baranto A, Karlsson J, Thomeé R. Outcome after hip arthroscopy for femoroacetabular impingement in 289 patients with minimum 2-year follow-up. Scand J Med Sci Sports 2016; 27:230-235. [DOI: 10.1111/sms.12641] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/19/2015] [Indexed: 01/09/2023]
Affiliation(s)
- M. Sansone
- Department of Orthopaedics; Institute of Clinical Sciences; Sahlgrenska Academy; Gothenburg University; Gothenburg Sweden
- Orthocenter/IFK-Kliniken; Gothenburg Sweden
| | - M. Ahldén
- Department of Orthopaedics; Institute of Clinical Sciences; Sahlgrenska Academy; Gothenburg University; Gothenburg Sweden
- Orthocenter/IFK-Kliniken; Gothenburg Sweden
| | - P. Jónasson
- Department of Orthopaedics; Institute of Clinical Sciences; Sahlgrenska Academy; Gothenburg University; Gothenburg Sweden
| | - C. Thomeé
- Department of Orthopaedics; Institute of Clinical Sciences; Sahlgrenska Academy; Gothenburg University; Gothenburg Sweden
| | - L. Swärd
- Orthocenter/IFK-Kliniken; Gothenburg Sweden
| | - A. Öhlin
- Department of Orthopaedics; Institute of Clinical Sciences; Sahlgrenska Academy; Gothenburg University; Gothenburg Sweden
| | - A. Baranto
- Department of Orthopaedics; Institute of Clinical Sciences; Sahlgrenska Academy; Gothenburg University; Gothenburg Sweden
| | - J. Karlsson
- Department of Orthopaedics; Institute of Clinical Sciences; Sahlgrenska Academy; Gothenburg University; Gothenburg Sweden
| | - R. Thomeé
- Section of Physiotherapy; Department of Clinical Neuroscience and Rehabilitation; Institute of Neuroscience and Physiology; Sahlgrenska Academy; Gothenburg University; Gothenburg Sweden
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Musahl V, Zaffagnini S, LaPrade R, Hirschmann MT, Karlsson J. The challenge of treating complex knee instability. Knee Surg Sports Traumatol Arthrosc 2015; 23:2769-70. [PMID: 26037547 DOI: 10.1007/s00167-015-3665-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 05/27/2015] [Indexed: 11/29/2022]
Affiliation(s)
- V Musahl
- Istituto Ortopedico Rizzoli, Laboratorio di Biomeccanica e Innovazione Tecnologica, Bologna (BO), Italy.
| | - S Zaffagnini
- Università di Bologna, Dipartimento Scienze Biomediche e Neuromotorie, Bologna (BO), Italy
| | - R LaPrade
- Università di Bologna, Dipartimento Scienze Biomediche e Neuromotorie, Bologna (BO), Italy
| | - M T Hirschmann
- Università di Bologna, Dipartimento Scienze Biomediche e Neuromotorie, Bologna (BO), Italy
| | - J Karlsson
- Università di Bologna, Dipartimento Scienze Biomediche e Neuromotorie, Bologna (BO), Italy
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Brorsson A, Olsson N, Nilsson-Helander K, Karlsson J, Eriksson BI, Silbernagel KG. Recovery of calf muscle endurance 3 months after an Achilles tendon rupture. Scand J Med Sci Sports 2015; 26:844-53. [DOI: 10.1111/sms.12533] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/04/2015] [Indexed: 01/26/2023]
Affiliation(s)
- A. Brorsson
- Department of Orthopaedics; Institute of Clinical Sciences at Sahlgrenska Academy; University of Gothenburg; Gothenburg Sweden
- IFK Kliniken Rehab; Gothenburg Sweden
| | - N. Olsson
- Department of Orthopaedics; Institute of Clinical Sciences at Sahlgrenska Academy; University of Gothenburg; Gothenburg Sweden
- Orthocenter IFK-Kliniken; Gothenburg Sweden
- Sahlgrenska University Hospital; Mölndal Sweden
| | - K. Nilsson-Helander
- Department of Orthopaedics; Institute of Clinical Sciences at Sahlgrenska Academy; University of Gothenburg; Gothenburg Sweden
- Hallands sjukhus; Kungsbacka Sweden
| | - J. Karlsson
- Department of Orthopaedics; Institute of Clinical Sciences at Sahlgrenska Academy; University of Gothenburg; Gothenburg Sweden
- Sahlgrenska University Hospital; Mölndal Sweden
| | - B. I. Eriksson
- Department of Orthopaedics; Institute of Clinical Sciences at Sahlgrenska Academy; University of Gothenburg; Gothenburg Sweden
- Sahlgrenska University Hospital; Mölndal Sweden
| | - K. G. Silbernagel
- Department of Orthopaedics; Institute of Clinical Sciences at Sahlgrenska Academy; University of Gothenburg; Gothenburg Sweden
- Department of Physical Therapy; University of Delaware; Newark Delaware USA
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Zanto TP, Clapp WC, Rubens MT, Karlsson J, Gazzaley A. Expectations of Task Demands Dissociate Working Memory and Long-Term Memory Systems. Cereb Cortex 2015; 26:1176-86. [PMID: 25577575 DOI: 10.1093/cercor/bhu307] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Many aspects of the complex relationship between working memory (WM) and long-term memory (LTM) remain unclear. Here, we manipulated task demands on a brief delayed-recognition paradigm to reveal behavioral and neural dissociations between these systems. Variations from a Baseline task included 3 challenges: increased delay duration, distraction during maintenance, and more closely matched memory probes, which were presented in behavioral experiments and during functional magnetic resonance imaging. Each of the challenges resulted in a significant decline in WM accuracy, and interestingly, a concurrent improvement in incidental LTM. Neural data revealed that, in task blocks, when participants anticipated, and then experienced, increased demands, they engaged medial temporal lobe (MTL) regions more during both the encoding and delay periods. Overall, these results indicate that distinct memory systems are recruited based on anticipated demands of a memory task, and MTL involvement underlies the observed dissociation between WM and LTM performance.
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Affiliation(s)
- T P Zanto
- Department of Neurology, Physiology and Psychiatry, Center for Integrative Neuroscience, University of California, San Francisco, CA, USA
| | - W C Clapp
- Department of Neurology, Physiology and Psychiatry, Center for Integrative Neuroscience, University of California, San Francisco, CA, USA
| | - M T Rubens
- Department of Neurology, Physiology and Psychiatry, Center for Integrative Neuroscience, University of California, San Francisco, CA, USA
| | - J Karlsson
- Department of Neurology, Physiology and Psychiatry, Center for Integrative Neuroscience, University of California, San Francisco, CA, USA
| | - A Gazzaley
- Department of Neurology, Physiology and Psychiatry, Center for Integrative Neuroscience, University of California, San Francisco, CA, USA
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