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Nielsen J, Jensen R, Ørtenblad N. Assessments of individual fiber glycogen and mitochondrial volume percentages reveal a graded reduction in muscle oxidative power during prolonged exhaustive exercise. Scand J Med Sci Sports 2024; 34:e14571. [PMID: 38389143 DOI: 10.1111/sms.14571] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 12/21/2023] [Accepted: 01/17/2024] [Indexed: 02/24/2024]
Abstract
During submaximal exercise, there is a heterogeneous recruitment of skeletal muscle fibers, with an ensuing heterogeneous depletion of muscle glycogen both within and between fiber types. Here, we show that the mean (95% CI) mitochondrial volume as a percentage of fiber volume of non-glycogen-depleted fibers was 2 (-10:6), 5 (-21:11), and 12 (-21:-2)% lower than all the sampled fibers after continuing exercise for 1, 2 h, and until task failure, respectively. Therefore, a glycogen-dependent fatigue of individual fibers during submaximal exercise may reduce the muscular oxidative power. These findings suggest a relationship between glycogen and mitochondrial content in individual muscle fibers, which is important for understanding fatigue during prolonged exercise.
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Affiliation(s)
- Joachim Nielsen
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
| | - Rasmus Jensen
- Research Center for Applied Health Science, University College South Denmark, Odense, Denmark
| | - Niels Ørtenblad
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
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Belmouhand M, Rothenbuehler SP, Dabbah S, Bjerager J, Sander B, Hjelmborg JB, Dalgård C, Jensen R, Larsen M. Small hard drusen and associated factors in early seniority. PLoS One 2022; 17:e0279279. [PMID: 36548342 PMCID: PMC9778563 DOI: 10.1371/journal.pone.0279279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 12/02/2022] [Indexed: 12/24/2022] Open
Abstract
PURPOSE The purpose of this study was to examine the ocular and systemic risk profile of the fundus phenotype ≥ 20 small hard (macular) drusen (< 63 μm in diameter). METHODS This single-center, cross-sectional study of 176 same-sex twin pairs aged 30 to 80 (median 60) years was a component of a framework study of the transition from not having age-related macular degeneration to having early AMD. Drusen categories assessed using fundus photography and optical coherence tomography included small hard drusen (diameter < 63 μm), intermediate soft drusen (63-125 μm), and large soft drusen (> 125 μm), of which the soft drusen are compatible with a diagnosis of AMD. RESULTS Having ≥ 20 small hard drusen within or outside the macula was associated with increasing age, lower body mass index, shorter axial length, hyperopia, female sex, increasing high-density lipoprotein (HDL), high alcohol consumption, and with the presence of soft drusen. CONCLUSIONS Having ≥ 20 small hard drusen was associated with some AMD-related risk factors, but not with smoking, increasing body mass index, and higher blood pressure. Having ≥ 20 small hard drusen was also associated with soft drusen, in agreement with previous studies. These findings suggest that small hard drusen are not an early manifestation of AMD but the product of a distinct process of tissue alteration that promotes the development of AMD or some subtype thereof.
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Affiliation(s)
- Mohamed Belmouhand
- Department of Ophthalmology, Rigshospitalet, Copenhagen University Hospital, Glostrup, Denmark
- Faculty of Health and Medical Science, Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- * E-mail:
| | - Simon P. Rothenbuehler
- Department of Ophthalmology, Rigshospitalet, Copenhagen University Hospital, Glostrup, Denmark
- Department of Ophthalmology, University Hospital Basel, Basel, Switzerland
| | - Sami Dabbah
- Department of Ophthalmology, Rigshospitalet, Copenhagen University Hospital, Glostrup, Denmark
| | - Jakob Bjerager
- Department of Ophthalmology, Rigshospitalet, Copenhagen University Hospital, Glostrup, Denmark
| | - Birgit Sander
- Department of Ophthalmology, Rigshospitalet, Copenhagen University Hospital, Glostrup, Denmark
| | - Jacob B. Hjelmborg
- Epidemiology, Biostatistics and Biodemography, Department of Public Health, University of Southern Denmark, Odense, Denmark
- Danish Twin Research Center, University of Southern Denmark, Odense, Denmark
| | - Christine Dalgård
- Danish Twin Research Center, University of Southern Denmark, Odense, Denmark
- Clinical Pharmacology, Pharmacy and Environmental Medicine, Department of Public Health, University of Southern Denmark, Odense, Denmark
| | - Rasmus Jensen
- Epidemiology, Biostatistics and Biodemography, Department of Public Health, University of Southern Denmark, Odense, Denmark
- Department of Mathematics and Computer Science, University of Southern Denmark, Odense, Denmark
| | - Michael Larsen
- Department of Ophthalmology, Rigshospitalet, Copenhagen University Hospital, Glostrup, Denmark
- Faculty of Health and Medical Science, Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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Pedersen MH, Danø A, Gibbons C, Jensen R. Administration and patient-incurred costs associated with opioid agonist treatment in Norway. Curr Med Res Opin 2022; 38:1959-1965. [PMID: 36172758 DOI: 10.1080/03007995.2022.2129230] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
OBJECTIVES Opioid use disorder is associated with high rates of mortality and has become an escalating global health issue. Opioid agonist treatment (OAT) with oral methadone or daily sublingual buprenorphine hydrochloride, either administered separately or in combination with naloxone hydrochloride (SL-BPN, SL-BPN/NX), is supervised by a healthcare professional experienced in treating opioid use disorder to ensure proper dosing and prevent misuse. For that reason, there may be substantial direct and indirect costs associated with OAT. Recently, weekly and monthly subcutaneous depot formulations of buprenorphine (SC-BPN) have been approved. This study aimed to estimate management and patient-incurred costs associated with the most commonly used OATs compared to the cost of weekly and monthly SC-BPN. METHODS We conducted a cost-minimisation analysis comparing the monthly costs of OAT treatment with oral formulations, i.e. oral methadone, SL-BPN, SL-BPN/NX and SC-BPN. The analysis assessed treatment acquisition costs and costs associated with management, supervision and administration of therapy, patients' transportation costs and the indirect costs associated with patients' time-use. The model was set up to reflect the Norwegian medically assisted rehabilitation system and considered the costs of a stable maintenance OAT regimen given continuously to patients already initiated and titrated on the therapy. RESULTS OAT management with monthly formulation of SC-BPN was associated with a reduction in monthly costs of €605, €586, and €411 per month compared to SL-BPN, SL-BPN/NX and oral methadone, respectively. Similar results were estimated when comparing to the weekly formulation of SC-BPN. CONCLUSION The analysis showed that the monthly formulation of SC-BPN was the cost-minimising alternative, followed by the weekly formulation, when considering all cost components.
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Jensen R, Ørtenblad N, di Benedetto C, Qvortrup K, Nielsen J. Quantification of Subcellular Glycogen Distribution in Skeletal Muscle Fibers using Transmission Electron Microscopy. J Vis Exp 2022. [DOI: 10.3791/63347] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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Dumas M, Jensen R, Au J, Munidasa S, Woods J, Robinson P, Santyr G, Ratjen F. 536: Evaluation of volume of trapped gas by multiple-breath washout and functional MRI in children with cystic fibrosis. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01959-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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6
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Jensen R, Christensen AF, Hartlev LB, Thomsen JS, Boel L, Laursen M, Revald PH, Varnum C, Keller KK, Hauge EM. Calcified cartilage differs in patients with end-stage primary osteoarthritis and secondary osteoarthritis due to rheumatoid arthritis of the hip joint. Scand J Rheumatol 2021; 51:441-451. [PMID: 34514946 DOI: 10.1080/03009742.2021.1952754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Objectives: Despite distinct aetiologies, the end-stages of primary osteoarthritis (OA) and secondary OA are described by common radiological features. However, the morphology of the bone-cartilage unit may differ depending on the pathogenesis. In this cross-sectional study, we aimed to investigate the histological differences in the bone-cartilage unit of the femoral head between patients with primary OA and secondary OA due to rheumatoid arthritis (RA).Method: Femoral heads were obtained from 12 patients with primary OA, six patients with secondary OA due to RA, and 12 control subjects. The femoral heads were investigated using stereological methods to ensure unbiased quantification.Results: The volume (mean difference [95% confidence interval]) (2.1 [0.5;3.8] cm3, p = 0.016) and thickness (413 [78.9;747] µm, p = 0.029) of the articular cartilage and the thickness of the calcified cartilage (56.4 [0.4;113] µm, p = 0.017) were larger in patients with primary OA than in patients with secondary OA due to RA. Femoral head volume (1.2 [-3.6;6.1] cm3, p = 0.598), bone volume fraction (-1.1 [-2.8;5.1] cm3, p = 0.553), subchondral bone thickness (-2.5 [-212;207] µm, p = 0.980), and osteophyte area (25.3 [-53.6;104] cm2, p = 0.506) did not differ between patients.Conclusion: The thicker calcified cartilage in primary OA preceding the loss of articular cartilage can be attributed to endochondral ossification. Patients with secondary OA due to RA had severely thinner calcified cartilage as the pathogenesis is driven by inflammation and is characterized by a generalized and more severe loss of articular cartilage.
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Affiliation(s)
- R Jensen
- Department of Rheumatology, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - A F Christensen
- Department of Internal Medicine, Lillebaelt Hospital, Vejle, Denmark
| | - L B Hartlev
- Department of Rheumatology, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Randers Regional Hospital, Randers, Denmark
| | - J S Thomsen
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Lwt Boel
- Institute of Forensic Medicine, Aarhus University, Aarhus, Denmark
| | - M Laursen
- Orthopaedic Surgery Research Unit, Aalborg University Hospital, Aalborg, Denmark
| | - P H Revald
- Department of Orthopaedic Surgery, Lillebaelt Hospital, Vejle, Denmark
| | - C Varnum
- Department of Orthopaedic Surgery, Lillebaelt Hospital, Vejle, Denmark
| | - K K Keller
- Department of Rheumatology, Aarhus University Hospital, Aarhus, Denmark
| | - E-M Hauge
- Department of Rheumatology, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
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Gejl KD, Hvid LG, Andersson EP, Jensen R, Holmberg HC, Ørtenblad N. Contractile Properties of MHC I and II Fibers From Highly Trained Arm and Leg Muscles of Cross-Country Skiers. Front Physiol 2021; 12:682943. [PMID: 34220547 PMCID: PMC8242206 DOI: 10.3389/fphys.2021.682943] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 05/18/2021] [Indexed: 11/13/2022] Open
Abstract
Introduction Little is known about potential differences in contractile properties of muscle fibers of the same type in arms and legs. Accordingly, the present study was designed to compare the force-generating capacity and Ca2+ sensitivity of fibers from arm and leg muscles of highly trained cross-country skiers. Method Single muscle fibers of m. vastus lateralis and m. triceps brachii of eight highly trained cross-country skiers were analyzed with respect to maximal Ca2+-activated force, specific force and Ca2+ sensitivity. Result The maximal Ca2+-activated force was greater for myosin heavy chain (MHC) II than MHC I fibers in both the arm (+62%, P < 0.001) and leg muscle (+77%, P < 0.001), with no differences between limbs for each MHC isoform. In addition, the specific force of MHC II fibers was higher than that of MHC I fibers in both arms (+41%, P = 0.002) and legs (+95%, P < 0.001). The specific force of MHC II fibers was the same in both limbs, whereas MHC I fibers from the m. triceps brachii were, on average, 39% stronger than fibers of the same type from the m. vastus lateralis (P = 0.003). pCa50 was not different between MHC I and II fibers in neither arms nor legs, but the MHC I fibers of m. triceps brachii demonstrated higher Ca2+ sensitivity than fibers of the same type from m. vastus lateralis (P = 0.007). Conclusion Comparison of muscles in limbs equally well trained revealed that MHC I fibers in the arm muscle exhibited a higher specific force-generating capacity and greater Ca2+ sensitivity than the same type of fiber in the leg, with no such difference in the case of MHC II fibers. These distinct differences in the properties of fibers of the same type in equally well-trained muscles open new perspectives in muscle physiology.
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Affiliation(s)
- Kasper Degn Gejl
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
| | - Lars G Hvid
- Department of Public Health, Exercise Biology, Aarhus University, Aarhus, Denmark
| | - Erik P Andersson
- Swedish Winter Sports Research Centre, Department of Health Sciences, Mid Sweden University, Östersund, Sweden.,School of Sport Sciences, Faculty of Health Sciences, UiT The Arctic University of Norway, Tromsö, Norway
| | - Rasmus Jensen
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
| | - Hans-Christer Holmberg
- Swedish Winter Sports Research Centre, Department of Health Sciences, Mid Sweden University, Östersund, Sweden.,Department of Health Sciences, Luleå University of Technology, Luleå, Sweden.,Department of Physiology and Pharmacology, Karolinska Institute, Stockholm, Sweden
| | - Niels Ørtenblad
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
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Jensen R, Ørtenblad N, Stausholm MLH, Skjaerbaek MC, Larsen DN, Hansen M, Holmberg HC, Plomgaard P, Nielsen J. Glycogen supercompensation is due to increased number, not size, of glycogen particles in human skeletal muscle. Exp Physiol 2021; 106:1272-1284. [PMID: 33675088 DOI: 10.1113/ep089317] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 12/02/2020] [Accepted: 03/01/2021] [Indexed: 01/10/2023]
Abstract
NEW FINDINGS What is the central question of this study? Glycogen supercompensation after glycogen-depleting exercise can be achieved by consuming a carbohydrate-enriched diet, but the associated effects on the size, number and localization of intramuscular glycogen particles are unknown. What is the main finding and its importance? Using transmission electron microscopy to inspect individual glycogen particles visually, we show that glycogen supercompensation is achieved by increasing the number of particles while keeping them at submaximal sizes. This might be a strategy to ensure that glycogen particles can be used fast, because particles that are too large might impair utilization rate. ABSTRACT Glycogen supercompensation after glycogen-depleting exercise can be achieved by consuming a carbohydrate-enriched diet, but the associated effects on the size, number and localization of intramuscular glycogen particles are unknown. We investigated how a glycogen-loading protocol affects fibre type-specific glycogen volume density, particle diameter and numerical density in three subcellular pools: between (intermyofibrillar) or within (intramyofibrillar) the myofibrils or beneath the sarcolemma (subsarcolemmal). Resting muscle biopsies from 11 physically active men were analysed using transmission electron microscopy after mixed (MIX), LOW or HIGH carbohydrate consumption separated by glycogen-lowering cycling at 75% of maximal oxygen consumption until exhaustion. After HIGH, the total volumetric glycogen content was 40% [95% confidence interval 16, 68] higher than after MIX in type I fibres (P < 0.001), with little to no difference in type II fibres (9% [95% confidence interval -9, 27]). Median particle diameter was 22.5 (interquartile range 20.8-24.7) nm across glycogen pools and fibre types, and the numerical density was 61% [25, 107] and 40% [9, 80] higher in the subsarcolemmal (P < 0.001) and intermyofibrillar (P < 0.01) pools of type I fibres, respectively, with little to no difference in the intramyofibrillar pool (3% [-20, 32]). In LOW, total glycogen was in the range of 21-23% lower, relative to MIX, in both fibre types, reflected in a 21-46% lower numerical density across pools. In comparison to MIX, particle diameter was unaffected by other diets ([-1.4, 1.3] nm). In conclusion, glycogen supercompensation after prolonged cycling is exclusive to type I fibres, predominantly in the subsarcolemmal pool, and involves an increase in the numerical density rather than the size of existing glycogen particles.
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Affiliation(s)
- Rasmus Jensen
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
| | - Niels Ørtenblad
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
| | - Marie-Louise H Stausholm
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
| | - Mette C Skjaerbaek
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
| | - Daniel N Larsen
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
| | - Mette Hansen
- Department of Public Health, Aarhus University, Aarhus, Denmark
| | - Hans-Christer Holmberg
- Department of Physiology and Pharmacology, Biomedicum C5, Karolinska Institutet, Stockholm, Sweden
| | - Peter Plomgaard
- Department of Clinical Biochemistry, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Joachim Nielsen
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
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Klein AB, Nicolaisen TS, Ørtenblad N, Gejl KD, Jensen R, Fritzen AM, Larsen EL, Karstoft K, Poulsen HE, Morville T, Sahl RE, Helge JW, Lund J, Falk S, Lyngbæk M, Ellingsgaard H, Pedersen BK, Lu W, Finan B, Jørgensen SB, Seeley RJ, Kleinert M, Kiens B, Richter EA, Clemmensen C. Pharmacological but not physiological GDF15 suppresses feeding and the motivation to exercise. Nat Commun 2021; 12:1041. [PMID: 33589633 PMCID: PMC7884842 DOI: 10.1038/s41467-021-21309-x] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [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] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 01/22/2021] [Indexed: 12/11/2022] Open
Abstract
Growing evidence supports that pharmacological application of growth differentiation factor 15 (GDF15) suppresses appetite but also promotes sickness-like behaviors in rodents via GDNF family receptor α-like (GFRAL)-dependent mechanisms. Conversely, the endogenous regulation of GDF15 and its physiological effects on energy homeostasis and behavior remain elusive. Here we show, in four independent human studies that prolonged endurance exercise increases circulating GDF15 to levels otherwise only observed in pathophysiological conditions. This exercise-induced increase can be recapitulated in mice and is accompanied by increased Gdf15 expression in the liver, skeletal muscle, and heart muscle. However, whereas pharmacological GDF15 inhibits appetite and suppresses voluntary running activity via GFRAL, the physiological induction of GDF15 by exercise does not. In summary, exercise-induced circulating GDF15 correlates with the duration of endurance exercise. Yet, higher GDF15 levels after exercise are not sufficient to evoke canonical pharmacological GDF15 effects on appetite or responsible for diminishing exercise motivation.
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Affiliation(s)
- Anders B Klein
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Trine S Nicolaisen
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Section of Molecular Physiology, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Niels Ørtenblad
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
| | - Kasper D Gejl
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
| | - Rasmus Jensen
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
| | - Andreas M Fritzen
- Section of Molecular Physiology, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Emil L Larsen
- Department of Clinical Pharmacology, Bispebjerg-Frederiksberg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Kristian Karstoft
- Department of Clinical Pharmacology, Bispebjerg-Frederiksberg Hospital, University of Copenhagen, Copenhagen, Denmark
- Centre of Inflammation and Metabolism, Centre for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Henrik E Poulsen
- Department of Clinical Pharmacology, Bispebjerg-Frederiksberg Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Thomas Morville
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Ronni E Sahl
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Xlab, Center for Healthy Aging, Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jørn W Helge
- Xlab, Center for Healthy Aging, Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jens Lund
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Sarah Falk
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Mark Lyngbæk
- Centre of Inflammation and Metabolism, Centre for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Helga Ellingsgaard
- Centre of Inflammation and Metabolism, Centre for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Bente K Pedersen
- Centre of Inflammation and Metabolism, Centre for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Wei Lu
- Novo Nordisk Research Center Indianapolis, Indianapolis, IN, USA
| | - Brian Finan
- Novo Nordisk Research Center Indianapolis, Indianapolis, IN, USA
| | | | - Randy J Seeley
- Department of Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Maximilian Kleinert
- Section of Molecular Physiology, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
- Institute for Diabetes and Obesity, Helmholtz Diabetes Center at Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Bente Kiens
- Section of Molecular Physiology, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Erik A Richter
- Section of Molecular Physiology, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Christoffer Clemmensen
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
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Steiner TJ, Stovner LJ, Jensen R, Uluduz D, Katsarava Z. Migraine remains second among the world's causes of disability, and first among young women: findings from GBD2019. J Headache Pain 2020; 21:137. [PMID: 33267788 PMCID: PMC7708887 DOI: 10.1186/s10194-020-01208-0] [Citation(s) in RCA: 320] [Impact Index Per Article: 80.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Affiliation(s)
- T J Steiner
- Department of Neuromedicine and Movement Science, NTNU Norwegian University of Science and Technology, Edvard Griegs gate, Trondheim, Norway. .,Division of Brain Sciences, Imperial College London, London, UK.
| | - L J Stovner
- Department of Neuromedicine and Movement Science, NTNU Norwegian University of Science and Technology, Edvard Griegs gate, Trondheim, Norway.,Norwegian Advisory Unit on Headache, Department of Neurology and Clinical Neurophysiology, St Olavs University Hospital, Trondheim, Norway
| | - R Jensen
- Danish Headache Centre, Department of Neurology, University of Copenhagen, Rigshospitalet Glostrup, Glostrup, Denmark
| | - D Uluduz
- Neurology Department, Cerrahpaşa School of Medicine, Istanbul University, Istanbul, Turkey
| | - Z Katsarava
- Evangelical Hospital Unna, Unna, Germany.,Department of Neurology, University of Duisburg-Essen, Essen, Germany.,EVEX Medical Corporation, Tbilisi, Georgia.,IM Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russian Federation
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Jensen R, Ørtenblad N, Stausholm MLH, Skjaerbaek MC, Larsen DN, Hansen M, Holmberg HC, Plomgaard P, Nielsen J. Heterogeneity in subcellular muscle glycogen utilisation during exercise impacts endurance capacity in men. J Physiol 2020; 598:4271-4292. [PMID: 32686845 DOI: 10.1113/jp280247] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [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: 06/02/2020] [Accepted: 07/17/2020] [Indexed: 02/06/2023] Open
Abstract
KEY POINTS When muscle biopsies first began to be used routinely in research on exercise physiology five decades ago, it soon become clear that the muscle content of glycogen is an important determinant of exercise performance. Glycogen particles are stored in distinct pools within the muscles, but the role of each pool during exercise and how this is affected by diet is unknown. Here, the effects of diet and exercise on these pools, as well as their relation to endurance during prolonged cycling were examined. We demonstrate here that an improved endurance capacity with high carbohydrate loading is associated with a temporal shift in the utilisation of the distinct stores of glycogen pools and is closely linked to the content of the glycogen pool closest to actin and myosin (intramyofibrillar glycogen). These findings highlight the functional importance of distinguishing between different subcellular microcompartments of glycogen in individual muscle fibres. ABSTRACT In muscle cells, glycogen is stored in three distinct subcellular pools: between or within myofibrils (inter- and intramyofibrillar glycogen, respectively) or beneath the sarcolemma (subsarcolemmal glycogen) and these pools may well have different functions. Here, we investigated the effect of diet and exercise on the content of these distinct pools and their relation to endurance capacity in type 1 and 2 muscle fibres. Following consumption of three different diets (normal, mixed diet = MIX, high in carbohydrate = HIGH, or low in carbohydrate = LOW) for 72 h, 11 men cycled at 75% of V ̇ O 2 max until exhaustion. The volumetric content of the glycogen pools in muscle biopsies obtained before, during, and after exercise were quantified by transmission electron micrographs. The mean (SD) time to exhaustion was 150 (30), 112 (22), and 69 (18) minutes in the HIGH, MIX and LOW trials, respectively (P < 0.001). As shown by multiple regression analyses, the intramyofibrillar glycogen content in type 1 fibres, particularly after 60 min of exercise, correlated most strongly with time to exhaustion. In the HIGH trial, intramyofibrillar glycogen was spared during the initial 60 min of exercise, which was associated with levels and utilisation of subsarcolemmal glycogen above normal. In all trials, utilisation of subsarcolemmal and intramyofibrillar glycogen was more pronounced than that of intermyofibrillar glycogen in relative terms. In conclusion, the muscle pool of intramyofibrillar glycogen appears to be the most important for endurance capacity in humans. In addition, a local abundance of subsarcolemmal glycogen reduces the utilisation of intramyofibrillar glycogen during exercise.
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Affiliation(s)
- Rasmus Jensen
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Denmark
| | - Niels Ørtenblad
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Denmark
| | | | - Mette Carina Skjaerbaek
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Denmark
| | - Daniel Nykvist Larsen
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Denmark
| | - Mette Hansen
- Department of Public Health, Aarhus University, Denmark
| | - Hans-Christer Holmberg
- Department of Health Sciences, Mid Sweden University, Sweden.,Department of Physiology and Pharmacology, Biomedicum C5, Karolinska Institutet, Stockholm, Sweden
| | - Peter Plomgaard
- Department of Clinical Biochemistry, Rigshospitalet, Copenhagen University Hospital, Denmark.,Department of Clinical Medicine, University of Copenhagen, Denmark
| | - Joachim Nielsen
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Denmark
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12
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Geng G, Jensen R, Liang Y, Qiu J, Niels O, Joachim N. Relationship Between Content Of Mitochondria And Z-disk Or Fiber Types. Med Sci Sports Exerc 2020. [DOI: 10.1249/01.mss.0000685548.98146.56] [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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13
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Liang Y, Jensen R, Geng G, Qiu J, Ortenblad N, Nielsen J. The Associations Of Mitochondrial Content And Maximal Oxygen Uptake. Med Sci Sports Exerc 2020. [DOI: 10.1249/01.mss.0000675160.59459.7f] [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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14
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Austin SF, Jansen JE, Petersen CJ, Jensen R, Simonsen E. Mobile App Integration Into Dialectical Behavior Therapy for Persons With Borderline Personality Disorder: Qualitative and Quantitative Study. JMIR Ment Health 2020; 7:e14913. [PMID: 32525488 PMCID: PMC7317633 DOI: 10.2196/14913] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 10/18/2019] [Accepted: 03/19/2020] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND The advancement of and access to technology such as smartphones has implications for psychotherapeutic health care and how interventions for a range of mental health disorders are provided. OBJECTIVE The objective of this study was to describe the experiences of participants while using a mobile phone app that was designed to enhance and support dialectical behavior therapy for personality disorders. METHODS A combination of in-depth interviews and questionnaires were used to capture the experiences of participants who used the app while undergoing dialectical behavior therapy treatment. A mixed methods approach was used; qualitative data from the interviews were analyzed using thematic analysis and were combined with quantitative data from the questionnaires. RESULTS Participants (N=24) who were receiving dialectical behavior therapy used the trial app. Participants (n=20) completed an evaluation questionnaire and a subset of this group (n=8) participated in semistructured interviews. Major themes that were identified from the interviews were (1) an overall positive experience of using the app-participants perceived that the app facilitated access and implementation of dialectical behavior therapy strategies (to regulate mood and behavior in challenging situations)-and (2) that the app provided a common source of information for patient and therapist interactions-app-based interactions were perceived to facilitate therapeutic alliance. Qualitative themes from the interviews were largely congruent with the quantitative responses from the questionnaires. CONCLUSIONS Participants welcomed the integration of technology as a supplement to clinical treatment. The app was perceived to facilitate and support many of the therapeutic techniques associated with dialectical behavior therapy treatment. The incorporation of technology into psychotherapeutic interventions may facilitate the transfer of knowledge and strategies that are learned in therapy to use in real-world settings thereby promoting recovery from mental health problems.
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Affiliation(s)
- Stephen F Austin
- Department of Psychiatric Research, Region Zealand Psychiatry, Slagelse, Denmark
| | | | | | - Rasmus Jensen
- Psychiatry West, Region Zealand Psychiatry, Holbaek, Denmark
| | - Erik Simonsen
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.,Department of Psychiatric Research, Region Zealand Psychiatry, Slagelse, Denmark
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15
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Diener HC, Antonaci F, Braschinsky M, Evers S, Jensen R, Lainez M, Kristoffersen ES, Tassorelli C, Ryliskiene K, Petersen JA. European Academy of Neurology guideline on the management of medication‐overuse headache. Eur J Neurol 2020; 27:1102-1116. [DOI: 10.1111/ene.14268] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 04/06/2020] [Accepted: 04/09/2020] [Indexed: 11/30/2022]
Affiliation(s)
- H. C. Diener
- Institute for Medical Informatics, Biometry and Epidemiology Faculty of Medicine University Duisburg‐Essen Essen Germany
| | - F. Antonaci
- IRCCS C. Mondino Foundation Pavia Italy
- Department of Brain and Behavioral Sciences University of Pavia Pavia Italy
| | - M. Braschinsky
- Headache Clinic Neurology Clinic Tartu University Hospital Tartu Estonia
| | - S. Evers
- Faculty of Medicine University of Münster MünsterGermany
- Krankenhaus Lindenbrunn Coppenbrügge Germany
| | - R. Jensen
- Danish Headache Center Neurological Clinic Rigshospitalet‐Glostrup University of Copenhagen Copenhagen Denmark
| | - M. Lainez
- Department of Neurology Hospital Clínico Universitario ValenciaSpain
- Department of Neurology Universidad Católica de Valencia Valencia Spain
| | - E. S. Kristoffersen
- Department of Neurology Akershus University Hospital OsloNorway
- Department of General Practice University of Oslo Oslo Norway
| | - C. Tassorelli
- IRCCS C. Mondino Foundation Pavia Italy
- Department of Brain and Behavioral Sciences University of Pavia Pavia Italy
| | - K. Ryliskiene
- Department of Neurology Institute of Clinical Medicine Faculty of Medicine Vilnius University Vilnius Lithuania
| | - J. A. Petersen
- Department Of Neurology University Hospital Zurich Zurich Switzerland
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16
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Jensen R, Nielsen J, Ørtenblad N. Inhibition of glycogenolysis prolongs action potential repriming period and impairs muscle function in rat skeletal muscle. J Physiol 2020; 598:789-803. [PMID: 31823376 DOI: 10.1113/jp278543] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 12/06/2019] [Indexed: 12/22/2022] Open
Abstract
KEY POINTS Muscle glycogen content is associated with muscle function, but the physiological link between the two is poorly understood. This study investigated the effects of inhibiting glycogenolysis, while maintaining high overall energy status, on different aspects of muscle function. We demonstrate here that Na+ ,K+ -ATPase activity depends on glycogenolytically derived ATP regardless of high global ATP, with a decrease in activity leading to reduced force production and accelerated fatigue development. The results support the concept of compartmentalized energy transfer with glycogen metabolism playing a crucial role in intramuscular ATP resynthesis and ion regulation. This study gives specific insights into muscular function and may help towards a better understanding of glycogen storage diseases and muscle fatigue. ABSTRACT Skeletal muscle glycogen content is associated with muscle function and fatigability. However, little is known about the physiological link between glycogen content and muscle function. Here we aimed to investigate the importance of glycogenolytically derived ATP per se on muscle force and action potential (AP) repriming period, i.e. the time before a second AP can be produced (indicative of Na+ ,K+ -ATPase activity). Single fibres from rat extensor digitorum longus muscles were isolated and mechanically skinned in order to investigate force production and the AP repriming period while global ATP and PCr concentrations were kept high. The importance of glycogenolytically derived ATP was studied by inhibition of glycogen phosphorylase (1,4-dideoxy-1,4-imino-d-arabinitol (DAB; 2 mm) or CP-316,819 (CP; 10 µm)) or glycogen removal (amyloglucosidase, 20 U ml-1 ). Tetanic force decreased by (mean (SD)) 21 (15)% (P < 0.001) and 76 (28)% (DAB) or 94 (6)% (CP, P < 0.001) in well-polarized and partially depolarized fibres, respectively. In depolarized fibres, twitch force decreased by 16 (10)% and 55 (26)% with DAB and CP, respectively, with no effect in well-polarized fibres (84 (10)%, P = 0.14). There was no effect of glycogen phosphorylase inhibition on repriming period in well-polarized fibres (median (25th, 75th percentile): 5 (4, 5) vs. 4 (4, 5) ms, P = 0.26), while the repriming period was prolonged from 6 (5, 7) to 8 (7, 10) ms (P = 0.01) in partially depolarized fibres. In line with this, glycogen removal increased repriming period from 5 (5, 6) to 6 (5, 7) ms (P = 0.003) in depolarized fibres. Together, these data strongly indicate that blocking glycogenolysis attenuates Na+ ,K+ -ATPase activity, which in turn increases the repriming period and reduces force, demonstrating a functional link between glycogenolytically derived ATP and force production.
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Affiliation(s)
- Rasmus Jensen
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark
| | - Joachim Nielsen
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark
| | - Niels Ørtenblad
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark
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17
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Steiner TJ, Jensen R, Katsarava Z, Linde M, MacGregor EA, Osipova V, Paemeleire K, Olesen J, Peters M, Martelletti P. Aids to management of headache disorders in primary care (2nd edition) : on behalf of the European Headache Federation and Lifting The Burden: the Global Campaign against Headache. J Headache Pain 2019; 20:57. [PMID: 31113373 PMCID: PMC6734476 DOI: 10.1186/s10194-018-0899-2] [Citation(s) in RCA: 144] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Accepted: 07/31/2018] [Indexed: 12/03/2022] Open
Abstract
The Aids to Management are a product of the Global Campaign against Headache, a worldwide programme of action conducted in official relations with the World Health Organization. Developed in partnership with the European Headache Federation, they update the first edition published 11 years ago.The common headache disorders (migraine, tension-type headache and medication-overuse headache) are major causes of ill health. They should be managed in primary care, firstly because their management is generally not difficult, and secondly because they are so common. These Aids to Management, with the European principles of management of headache disorders in primary care as the core of their content, combine educational materials with practical management aids. They are supplemented by translation protocols, to ensure that translations are unchanged in meaning from the English-language originals.The Aids to Management may be individually downloaded and, as is the case for all products of the Global Campaign against Headache, are available without restriction for non-commercial use.
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Affiliation(s)
- T. J. Steiner
- Department of Neuromedicine and Movement Science, NTNU Norwegian University of Science and Technology, Edvard Griegs Gate, Trondheim, Norway
- Division of Brain Sciences, Imperial College London, London, UK
| | - R. Jensen
- Danish Headache Centre, Department of Neurology, University of Copenhagen, Rigshospitalet Glostrup, Glostrup, Denmark
| | - Z. Katsarava
- Department of Neurology, Evangelical Hospital Unna, Unna, Germany
- Medical Faculty, University of Duisburg-Essen, Essen, Germany
| | - M. Linde
- Department of Neuromedicine and Movement Science, NTNU Norwegian University of Science and Technology, Edvard Griegs Gate, Trondheim, Norway
- Norwegian Advisory Unit on Headache, St. Olavs Hospital, Trondheim, Norway
| | - E. A. MacGregor
- Centre for Neuroscience and Trauma, Blizard Institute of Cell and Molecular Science, Barts and the London School of Medicine and Dentistry, London, UK
| | - V. Osipova
- Research Department of Neurology, First “I. Sechenov” Moscow State Medical University, Moscow, Russian Federation
- Research Center for Neuropsychiatry, Moscow, Russian Federation
| | - K. Paemeleire
- Department of Neurology, Ghent University Hospital, Ghent, Belgium
| | - J. Olesen
- Danish Headache Centre, Department of Neurology, University of Copenhagen, Rigshospitalet Glostrup, Glostrup, Denmark
| | - M. Peters
- Health Services Research Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - P. Martelletti
- Department of Clinical and Molecular Medicine, Sapienza University, Rome, Italy
- Regional Referral Headache Centre, Sant’Andrea Hospital, Rome, Italy
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18
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Steiner TJ, Göbel H, Jensen R, Lampl C, Paemeleire K, Linde M, Braschinsky M, Mitsikostas D, Gil-Gouveia R, Katsarava Z. Headache service quality: the role of specialized headache centres within structured headache services, and suggested standards and criteria as centres of excellence. J Headache Pain 2019; 20:24. [PMID: 30832585 PMCID: PMC6734362 DOI: 10.1186/s10194-019-0970-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 02/11/2019] [Indexed: 01/11/2023] Open
Abstract
In joint initiatives, the European Headache Federation and Lifting The Burden have described a model of structured headache services (with their basis in primary care), defined service quality in this context, and developed practical methods for its evaluation.Here, in a continuation of the service quality evaluation programme, we set out ten suggested role- and performance-defining standards for specialized headache centres operating as an integral component of these services. Verifiable criteria for evaluation accompany each standard. The purposes are five-fold: (i) to inspire and promote, or stimulate the establishment of, specialized headache centres as centres of excellence; (ii) to define the role of such centres within optimally structured and organized national headache services; (iii) to set out criteria by which such centres may be recognized as exemplary in their fulfilment of this role; (iv) to provide the basis for, and to initiate and motivate, collaboration and networking between such centres both nationally and internationally; (v) ultimately to improve the delivery and quality of health care for headache.
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Affiliation(s)
- T. J. Steiner
- Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology, Edvard Griegs Gate, Trondheim, Norway
- Division of Brain Sciences, Imperial College London, London, UK
| | - H. Göbel
- Kiel Headache Centre, Kiel Neurological Pain and Headache Centre, Kiel, Germany
| | - R. Jensen
- Danish Headache Centre, Department of Neurology, University of Copenhagen, Rigshospitalet-Glostrup Hospital, Glostrup, Denmark
| | - C. Lampl
- Headache Medical Centre, Ordensklinikum Linz Barmherzige Schwestern, Linz, Austria
| | - K. Paemeleire
- Department of Neurology, Ghent University Hospital, Ghent, Belgium
| | - M. Linde
- Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology, Edvard Griegs Gate, Trondheim, Norway
| | - M. Braschinsky
- Headache Clinic, Neurology Clinic, Tartu University Clinics, Tartu, Estonia
| | - D. Mitsikostas
- Neurology Department A, Aeginition Hospital, National & Kapodistrian University of Athens, Athens, Greece
| | | | - Z. Katsarava
- Evangelical Hospital Unna, Unna, Germany
- Department of Neurology, University of Duisburg-Essen, Essen, Germany
- EVEX Medical Corporation, Tbilisi, Georgia
- IM Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russian Federation
| | - on behalf of the European Headache Federation and Lifting The Burden: the Global Campaign against Headache
- Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology, Edvard Griegs Gate, Trondheim, Norway
- Division of Brain Sciences, Imperial College London, London, UK
- Kiel Headache Centre, Kiel Neurological Pain and Headache Centre, Kiel, Germany
- Danish Headache Centre, Department of Neurology, University of Copenhagen, Rigshospitalet-Glostrup Hospital, Glostrup, Denmark
- Headache Medical Centre, Ordensklinikum Linz Barmherzige Schwestern, Linz, Austria
- Department of Neurology, Ghent University Hospital, Ghent, Belgium
- Headache Clinic, Neurology Clinic, Tartu University Clinics, Tartu, Estonia
- Neurology Department A, Aeginition Hospital, National & Kapodistrian University of Athens, Athens, Greece
- Hospital da Luz Headache Center, Lisbon, Portugal
- Evangelical Hospital Unna, Unna, Germany
- Department of Neurology, University of Duisburg-Essen, Essen, Germany
- EVEX Medical Corporation, Tbilisi, Georgia
- IM Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russian Federation
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Taylor-Cousar J, Tullis E, Derichs N, Davies J, Nazareth D, Downey D, Rosenbluth D, Fajac I, Malfroot A, Saunders C, Short C, Jensen R, Solomon G, Vermeulen F, Willmann S, Saleh S, Langer S, Kaiser A, Hoffmann A, Rowe S, Ratjen F. P028 Riociguat for the treatment of adult Phe508del homozygous cystic fibrosis: efficacy data from the Phase II Rio-CF study. J Cyst Fibros 2018. [DOI: 10.1016/s1569-1993(18)30325-4] [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: 10/14/2022]
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20
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Zhang H, Zhu B, Park S, Doerr C, Aydinlik M, Geyer J, Pfau T, Pendock G, Aroca R, Liu F, Rasmussen C, Mikkelsen B, Borel PI, Geisler T, Jensen R, Peckham DW, Lingle R, Vaidya D, Yan MF, Wisk PW, DiGiovanni DJ. Real-time transmission of 16 Tb/s over 1020km using 200Gb/s CFP2-DCO. Opt Express 2018; 26:6943-6948. [PMID: 29609380 DOI: 10.1364/oe.26.006943] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 03/01/2018] [Indexed: 06/08/2023]
Abstract
We demonstrate real-time transmission of 16 Tb/s (80x200Gb/s) over 1020km TeraWave ULL fiber with 170km span length using the world's first 200Gb/s CFP2-DCO module with a record low power consumption less than 0.1W/Gbps.
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21
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Steiner TJ, Stovner LJ, Vos T, Jensen R, Katsarava Z. Migraine is first cause of disability in under 50s: will health politicians now take notice? J Headache Pain 2018; 19:17. [PMID: 29468450 PMCID: PMC5821623 DOI: 10.1186/s10194-018-0846-2] [Citation(s) in RCA: 337] [Impact Index Per Article: 56.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Accepted: 02/14/2018] [Indexed: 12/12/2022] Open
Affiliation(s)
- Timothy J Steiner
- Department of Neuromedicine and Movement Science, NTNU Norwegian University of Science and Technology, Edvard Griegs Gate, Trondheim, Norway.
- Division of Brain Sciences, Imperial College London, London, UK.
| | - Lars J Stovner
- Department of Neuromedicine and Movement Science, NTNU Norwegian University of Science and Technology, Edvard Griegs Gate, Trondheim, Norway
- Norwegian Advisory Unit on Headache, Department of Neurology and Clinical Neurophysiology, St Olavs University Hospital, Trondheim, Norway
| | - Theo Vos
- Institute for Health Metrics and Evaluation (IHME), University of Washington, Seattle, WA, USA
| | - R Jensen
- Danish Headache Centre, Department of Neurology, University of Copenhagen, Rigshospitalet Glostrup, Glostrup, Denmark
| | - Z Katsarava
- Department of Neurology, Evangelical Hospital Unna, Unna, Germany
- Medical Faculty, University of Duisburg-Essen, Essen, Germany
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22
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Ashina S, Lipton RB, Bendtsen L, Hajiyeva N, Buse DC, Lyngberg AC, Jensen R. Increased pain sensitivity in migraine and tension-type headache coexistent with low back pain: A cross-sectional population study. Eur J Pain 2018; 22:904-914. [PMID: 29349847 DOI: 10.1002/ejp.1176] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/09/2017] [Indexed: 01/03/2023]
Abstract
BACKGROUND Low back pain is common in the general population and in individuals with primary headaches. We assessed the relative frequency of self-reported back pain in persons with and without primary headaches and examined pain sensitivity. METHOD A population of 796 individuals completed a headache interview based on ICHD criteria and provided data of interest in a self-administered questionnaire. Headache cases were classified into chronic (≥15) (CH) or episodic (<15 headache days/month) (EH). A total of 495 had a pericranial total tenderness score (TTS), and 494 had cephalic and extracephalic pressure pain thresholds (PPTs) assessed. RESULTS Adjusted for age, gender, education and poor self-rated health, 1-year relative frequency of back pain was higher in individuals with CH (82.5%) and EH (80.1%) compared to no headache group (65.7%). In persons with back pain, TTS was higher in CH, (26.3 ± 12.1) than in EH, (18.5 ± 10.0; p < 0.001) and higher in both groups than in those with no headache, 10.8 ± 8.5 (p < 0.001 and p < 0.001, respectively). In persons with back pain, temporalis PPT were lower in CH, 169.3 ± 57.8, than in EH, 225.2 ± 98.1, and in no headache group, 244.3 ± 105.4 (p = 0.02 and p = 0.01, respectively). In persons with back pain, finger PPT were lower in CH, 237.1 ± 106.7, than in EH, 291.3 ± 141.3, or in no headache group, 304.3 ± 137.4 (p = 0.02 and p < 0.001, respectively). CONCLUSION Back pain is highly frequent in individuals with CH, followed by EH and no headache. In persons with CH, back pain is associated with lower cephalic and extracephalic PPTs suggesting central sensitization may be a substrate or consequence of comorbidity. SIGNIFICANCE We found that back pain has high relative frequency in individuals with CH followed EH and no headache. Back pain is associated with low cephalic and extracephalic PPTs in individuals with CH. Central sensitization may be a substrate or consequence of this comorbidity of back pain and CH.
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Affiliation(s)
- S Ashina
- Department of Neurology, NYU Langone Medical Center, New York University School of Medicine, New York, NY, USA.,Danish Headache Center and Department of Neurology, University of Copenhagen, Rigshospitalet Glostrup, Glostrup, Denmark
| | - R B Lipton
- Department of Neurology, Albert Einstein College of Medicine, Bronx, NY, USA.,Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA.,Montefiore Headache Center, Bronx, NY, USA
| | - L Bendtsen
- Danish Headache Center and Department of Neurology, University of Copenhagen, Rigshospitalet Glostrup, Glostrup, Denmark
| | - N Hajiyeva
- Danish Headache Center and Department of Neurology, University of Copenhagen, Rigshospitalet Glostrup, Glostrup, Denmark
| | - D C Buse
- Department of Neurology, Albert Einstein College of Medicine, Bronx, NY, USA.,Montefiore Headache Center, Bronx, NY, USA
| | - A C Lyngberg
- Unit for Quality and Patient Safety, Capital Region of Denmark, Copenhagen, Denmark
| | - R Jensen
- Danish Headache Center and Department of Neurology, University of Copenhagen, Rigshospitalet Glostrup, Glostrup, Denmark
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Ashina S, Bendtsen L, Buse DC, Lyngberg AC, Lipton RB, Jensen R. Neuroticism, depression and pain perception in migraine and tension-type headache. Acta Neurol Scand 2017; 136:470-476. [PMID: 28261782 DOI: 10.1111/ane.12751] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/06/2017] [Indexed: 01/03/2023]
Abstract
OBJECTIVES People with migraine and tension-type headache (TTH) have psychiatric comorbidities. We aimed to test differences in mental health constructs by type and frequency of primary headache and associated pain sensitivity. MATERIALS AND METHODS Data on headache features, neuroticism (Eysenck Personality Questionnaire) and depression (Major Depression Inventory) were obtained from 547 individuals classified into chronic (≥15) or episodic (<15 headache days/month) and into pure migraine (n=43), pure tension type headache (TTH, n=97), migraine and TTH (n=83) and no headache diagnosis (controls, n=324) groups. A pericranial total tenderness score (TTS) and pressure pain thresholds (PPTs) were measured. Differences in mental health constructs were examined by headache frequency and type using generalized linear mixed models adjusting for sociodemographic covariates. RESULTS Depression scores were highest among people with chronic headache, lower in those with episodic headache, and lowest in controls. The chronic and episodic headache groups had higher neuroticism scores than controls. Mental health construct scores were highest for the migraine and TTH group and lowest in the control group. TTS and cephalic PPTs were correlated with neuroticism and depression and were higher in the chronic headache group compared to the no headache group even when adjusted for neuroticism and depression. CONCLUSIONS Neuroticism and depression scores are associated with headache frequency (chronic vs episodic) and are highest for migraine and TTH followed by pure TTH then migraine. Mental health constructs were correlated with but did not influence differences in TTS and PPTs between headache groups.
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Affiliation(s)
- S. Ashina
- Department of Neurology; New York University School of Medicine; NYU Langone Medical Center and NYU Lutheran Headache Center; New York NY USA
- Danish Headache Center; Department of Neurology; University of Copenhagen; Rigshospitalet Glostrup; Glostrup Denmark
| | - L. Bendtsen
- Danish Headache Center; Department of Neurology; University of Copenhagen; Rigshospitalet Glostrup; Glostrup Denmark
| | - D. C. Buse
- Department of Neurology; Albert Einstein College of Medicine and Montefiore Headache Center; Bronx NY USA
| | - A. C. Lyngberg
- Unit for Quality and Patient Safety; Capital Region of Denmark; Copenhagen Denmark
| | - R. B. Lipton
- Department of Neurology; Albert Einstein College of Medicine and Montefiore Headache Center; Bronx NY USA
| | - R. Jensen
- Danish Headache Center; Department of Neurology; University of Copenhagen; Rigshospitalet Glostrup; Glostrup Denmark
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Scotton W, Botfield H, Maria U, Westgate C, Mitchell J, Nightingale P, Jensen R, Sinclair A. Topiramate is as effective as acetazolamide at lowering intracranial pressure in healthy rodents. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Shah M, Jensen R, Yau C, Straehley I, Berry DA, DeMichele A, Buxton MB, Hylton NM, Perlmutter J, Symmans WF, Tripathy D, Yee D, Wallace A, Kaplan HG, Clark A, Chien AJ, Esserman LJ, Melisko ME. Abstract P5-11-18: Trajectory of patient (Pt) reported physical function (PF) during and after neoadjuvant chemotherapy in the I-SPY 2 trial. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p5-11-18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background
Patients (pts) receiving chemotherapy for breast cancer experience toxicities impacting short and long-term quality of life (QOL). Within I-SPY 2, a trial adaptively randomizing stage II/III breast cancer pts to neoadjuvant chemotherapy +/- an investigational agent, we are collecting pt reported outcome (PRO) data to understand the impact of investigational agents on QOL. This PRO sub-study provides a unique opportunity to study QOL longitudinally and explore how pt and tumor characteristics, exposure to investigational therapies, and surgical outcome impact QOL.
Methods
Pts enrolled in this trial receive paclitaxel (T) +/- an investigational agent for 12 weeks followed by 4 cycles of doxorubicin and cyclophosphamide (AC). Surveys include the EORTC QLQ-C30 and BR-23, and PROMIS measures for QOL metrics including but not limited to physical function (PF), anxiety, and depression. Surveys are administered pre-chemotherapy to 2 years post-surgery. PF data from the EORTC and PROMIS instruments was analyzed for 238 pts at 5 sites (UCSF, UCSD, U of Pennsylvania, U of Minnesota, and Swedish Cancer Center). 48 pts completed baseline, inter-regimen (between T and AC), pre-operative and post-surgery surveys. Of the 48 pts 32 completed a 6-month follow up (FUP) and 31 completed a 1-year FUP survey. A linear mixed effect model, adjusting for HER2 status and treatment type was used to evaluate changes in PF over time. Sample size is small and statistics are descriptive rather than inferential.
Results
Median age of pts in this analysis was 50 (range 27-72).
Table 1 shows PROMIS & EORTC PF scores in this cohort.Time Point PROMISEORTC nMeanSEMeanSEPre-TreatmentAll4852.51.092.02.0 HER2+1553.51.594.12.2 HER2-3352.11.391.12.8Inter-RegimenAll4845.51.282.22.7 HER2+1548.62.384.44.2 HER2-3344.11.381.23.4Pre-SurgeryAll4843.91.179.42.3 HER2+1545.12.275.34.1 HER2-3343.41.381.32.86-Month FUPAll3248.11.487.41.9 HER2+1247.52.285.03.3 HER2-2048.41.888.92.41 Year FUPAll3148.91.488.43.1 HER2+949.12.988.95.4 HER2-2248.81.788.33.8
At baseline, mean PROMIS PF scores were higher than the US average (mean = 50) but declined as expected throughout treatment. HER2+ patients experienced a similar degree of recovery as HER2- pts post-surgery despite adjuvant treatment with Herceptin. Analysis of post-operative PROMIS PF indicated an average score within the U.S. general population (mean =50) but did not return to higher functioning seen at baseline levels (mean 52.5, p-value < 0.05). Analysis of the EORTC PF sub-scale demonstrated a similar trend; however, the baseline and post-operative difference was not significant (p-value=0.15 for both FUP). Finding supports PROMIS PF ability to measure high functioning cancer patients.
Conclusions: Among a subset of pts who completed all surveys in the I-SPY 2 QOL substudy, PF did not return to baseline at 6-12 months post-operatively. Through transition to an electronic platform of data collection we hope to improve compliance with survey completion. We continue to analyze other QOL measures and plan to correlate QOL data with treatment arm, adverse events, comorbidities, and response to neoadjuvant treatment.
Citation Format: Shah M, Jensen R, Yau C, Straehley I, Berry DA, DeMichele A, Buxton MB, Hylton NM, Perlmutter J, Symmans WF, Tripathy D, Yee D, Wallace A, Kaplan HG, Clark A, Chien AJ, I-SPY 2 Investigators, Esserman LJ, Melisko ME. Trajectory of patient (Pt) reported physical function (PF) during and after neoadjuvant chemotherapy in the I-SPY 2 trial [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr P5-11-18.
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Affiliation(s)
- M Shah
- University of California, San Francisco, San Francisco, CA; Georgetown Lombardi Comprehensive Cancer Center, Washington, DC; Berry Consultants, Austin, TX; University of Pennsylvania, Philadelphia, PA; Gemini Group, Ann Arbor, MI; MD Anderson Cancer Center, Houston, TX; University of Minnesota, Minneapolis, MN; University of California, San Diego, San Diego, CA; Swedish Meidcal Center, Seattle, WA; QuantumLeap Healthcare Collaborative, San Francisco, CA
| | - R Jensen
- University of California, San Francisco, San Francisco, CA; Georgetown Lombardi Comprehensive Cancer Center, Washington, DC; Berry Consultants, Austin, TX; University of Pennsylvania, Philadelphia, PA; Gemini Group, Ann Arbor, MI; MD Anderson Cancer Center, Houston, TX; University of Minnesota, Minneapolis, MN; University of California, San Diego, San Diego, CA; Swedish Meidcal Center, Seattle, WA; QuantumLeap Healthcare Collaborative, San Francisco, CA
| | - C Yau
- University of California, San Francisco, San Francisco, CA; Georgetown Lombardi Comprehensive Cancer Center, Washington, DC; Berry Consultants, Austin, TX; University of Pennsylvania, Philadelphia, PA; Gemini Group, Ann Arbor, MI; MD Anderson Cancer Center, Houston, TX; University of Minnesota, Minneapolis, MN; University of California, San Diego, San Diego, CA; Swedish Meidcal Center, Seattle, WA; QuantumLeap Healthcare Collaborative, San Francisco, CA
| | - I Straehley
- University of California, San Francisco, San Francisco, CA; Georgetown Lombardi Comprehensive Cancer Center, Washington, DC; Berry Consultants, Austin, TX; University of Pennsylvania, Philadelphia, PA; Gemini Group, Ann Arbor, MI; MD Anderson Cancer Center, Houston, TX; University of Minnesota, Minneapolis, MN; University of California, San Diego, San Diego, CA; Swedish Meidcal Center, Seattle, WA; QuantumLeap Healthcare Collaborative, San Francisco, CA
| | - DA Berry
- University of California, San Francisco, San Francisco, CA; Georgetown Lombardi Comprehensive Cancer Center, Washington, DC; Berry Consultants, Austin, TX; University of Pennsylvania, Philadelphia, PA; Gemini Group, Ann Arbor, MI; MD Anderson Cancer Center, Houston, TX; University of Minnesota, Minneapolis, MN; University of California, San Diego, San Diego, CA; Swedish Meidcal Center, Seattle, WA; QuantumLeap Healthcare Collaborative, San Francisco, CA
| | - A DeMichele
- University of California, San Francisco, San Francisco, CA; Georgetown Lombardi Comprehensive Cancer Center, Washington, DC; Berry Consultants, Austin, TX; University of Pennsylvania, Philadelphia, PA; Gemini Group, Ann Arbor, MI; MD Anderson Cancer Center, Houston, TX; University of Minnesota, Minneapolis, MN; University of California, San Diego, San Diego, CA; Swedish Meidcal Center, Seattle, WA; QuantumLeap Healthcare Collaborative, San Francisco, CA
| | - MB Buxton
- University of California, San Francisco, San Francisco, CA; Georgetown Lombardi Comprehensive Cancer Center, Washington, DC; Berry Consultants, Austin, TX; University of Pennsylvania, Philadelphia, PA; Gemini Group, Ann Arbor, MI; MD Anderson Cancer Center, Houston, TX; University of Minnesota, Minneapolis, MN; University of California, San Diego, San Diego, CA; Swedish Meidcal Center, Seattle, WA; QuantumLeap Healthcare Collaborative, San Francisco, CA
| | - NM Hylton
- University of California, San Francisco, San Francisco, CA; Georgetown Lombardi Comprehensive Cancer Center, Washington, DC; Berry Consultants, Austin, TX; University of Pennsylvania, Philadelphia, PA; Gemini Group, Ann Arbor, MI; MD Anderson Cancer Center, Houston, TX; University of Minnesota, Minneapolis, MN; University of California, San Diego, San Diego, CA; Swedish Meidcal Center, Seattle, WA; QuantumLeap Healthcare Collaborative, San Francisco, CA
| | - J Perlmutter
- University of California, San Francisco, San Francisco, CA; Georgetown Lombardi Comprehensive Cancer Center, Washington, DC; Berry Consultants, Austin, TX; University of Pennsylvania, Philadelphia, PA; Gemini Group, Ann Arbor, MI; MD Anderson Cancer Center, Houston, TX; University of Minnesota, Minneapolis, MN; University of California, San Diego, San Diego, CA; Swedish Meidcal Center, Seattle, WA; QuantumLeap Healthcare Collaborative, San Francisco, CA
| | - WF Symmans
- University of California, San Francisco, San Francisco, CA; Georgetown Lombardi Comprehensive Cancer Center, Washington, DC; Berry Consultants, Austin, TX; University of Pennsylvania, Philadelphia, PA; Gemini Group, Ann Arbor, MI; MD Anderson Cancer Center, Houston, TX; University of Minnesota, Minneapolis, MN; University of California, San Diego, San Diego, CA; Swedish Meidcal Center, Seattle, WA; QuantumLeap Healthcare Collaborative, San Francisco, CA
| | - D Tripathy
- University of California, San Francisco, San Francisco, CA; Georgetown Lombardi Comprehensive Cancer Center, Washington, DC; Berry Consultants, Austin, TX; University of Pennsylvania, Philadelphia, PA; Gemini Group, Ann Arbor, MI; MD Anderson Cancer Center, Houston, TX; University of Minnesota, Minneapolis, MN; University of California, San Diego, San Diego, CA; Swedish Meidcal Center, Seattle, WA; QuantumLeap Healthcare Collaborative, San Francisco, CA
| | - D Yee
- University of California, San Francisco, San Francisco, CA; Georgetown Lombardi Comprehensive Cancer Center, Washington, DC; Berry Consultants, Austin, TX; University of Pennsylvania, Philadelphia, PA; Gemini Group, Ann Arbor, MI; MD Anderson Cancer Center, Houston, TX; University of Minnesota, Minneapolis, MN; University of California, San Diego, San Diego, CA; Swedish Meidcal Center, Seattle, WA; QuantumLeap Healthcare Collaborative, San Francisco, CA
| | - A Wallace
- University of California, San Francisco, San Francisco, CA; Georgetown Lombardi Comprehensive Cancer Center, Washington, DC; Berry Consultants, Austin, TX; University of Pennsylvania, Philadelphia, PA; Gemini Group, Ann Arbor, MI; MD Anderson Cancer Center, Houston, TX; University of Minnesota, Minneapolis, MN; University of California, San Diego, San Diego, CA; Swedish Meidcal Center, Seattle, WA; QuantumLeap Healthcare Collaborative, San Francisco, CA
| | - HG Kaplan
- University of California, San Francisco, San Francisco, CA; Georgetown Lombardi Comprehensive Cancer Center, Washington, DC; Berry Consultants, Austin, TX; University of Pennsylvania, Philadelphia, PA; Gemini Group, Ann Arbor, MI; MD Anderson Cancer Center, Houston, TX; University of Minnesota, Minneapolis, MN; University of California, San Diego, San Diego, CA; Swedish Meidcal Center, Seattle, WA; QuantumLeap Healthcare Collaborative, San Francisco, CA
| | - A Clark
- University of California, San Francisco, San Francisco, CA; Georgetown Lombardi Comprehensive Cancer Center, Washington, DC; Berry Consultants, Austin, TX; University of Pennsylvania, Philadelphia, PA; Gemini Group, Ann Arbor, MI; MD Anderson Cancer Center, Houston, TX; University of Minnesota, Minneapolis, MN; University of California, San Diego, San Diego, CA; Swedish Meidcal Center, Seattle, WA; QuantumLeap Healthcare Collaborative, San Francisco, CA
| | - AJ Chien
- University of California, San Francisco, San Francisco, CA; Georgetown Lombardi Comprehensive Cancer Center, Washington, DC; Berry Consultants, Austin, TX; University of Pennsylvania, Philadelphia, PA; Gemini Group, Ann Arbor, MI; MD Anderson Cancer Center, Houston, TX; University of Minnesota, Minneapolis, MN; University of California, San Diego, San Diego, CA; Swedish Meidcal Center, Seattle, WA; QuantumLeap Healthcare Collaborative, San Francisco, CA
| | - LJ Esserman
- University of California, San Francisco, San Francisco, CA; Georgetown Lombardi Comprehensive Cancer Center, Washington, DC; Berry Consultants, Austin, TX; University of Pennsylvania, Philadelphia, PA; Gemini Group, Ann Arbor, MI; MD Anderson Cancer Center, Houston, TX; University of Minnesota, Minneapolis, MN; University of California, San Diego, San Diego, CA; Swedish Meidcal Center, Seattle, WA; QuantumLeap Healthcare Collaborative, San Francisco, CA
| | - ME Melisko
- University of California, San Francisco, San Francisco, CA; Georgetown Lombardi Comprehensive Cancer Center, Washington, DC; Berry Consultants, Austin, TX; University of Pennsylvania, Philadelphia, PA; Gemini Group, Ann Arbor, MI; MD Anderson Cancer Center, Houston, TX; University of Minnesota, Minneapolis, MN; University of California, San Diego, San Diego, CA; Swedish Meidcal Center, Seattle, WA; QuantumLeap Healthcare Collaborative, San Francisco, CA
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Einarson TR, Bereza BG, Acs A, Jensen R. Systematic literature review of the health economic implications of early detection by screening populations at risk for type 2 diabetes. Curr Med Res Opin 2017; 33:331-358. [PMID: 27819150 DOI: 10.1080/03007995.2016.1257977] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
BACKGROUND Undetected/uncontrolled diabetes is associated with substantial morbidity and mortality and consequent costs. Early detection through screening identifies patients at risk, allowing for earlier treatment initiation. OBJECTIVES To determine the economic impact of screening for type 2 diabetes (T2DM). DATA SOURCES We systematically reviewed health economic analyses of screening programs for T2DM/pre-diabetes. STUDY ELIGIBILITY CRITERIA Published between 2000 and 2015 in any language. Articles must have reported costs of screening, test/patient outcomes and cost-effectiveness. PARTICIPANTS AND INTERVENTIONS Any type of screening (universal, targeted, opportunistic) was accepted. METHODS Data were extracted from Scopus/Medline/Embase, then tabulated. RESULTS There were 137 studies identified, 108 rejected; 29 were analyzed. Screening types included 18 universal, 8 targeted and 8 opportunistic. One study screened for pre-diabetes, 16 for T2DM and 12 examined both. Fourteen (48%) reported costs of screening only, 9 (31%) costs of screening combined with interventions and 6 (21%) presented all costs separately. Screening was compared to no screening in 13 studies (45%); screening was cost-effective in 8 (62%), not cost-effective in 4 (31%) and neither in 1 (8%). When comparing different screening methods, 6 found targeted screening was cost-effective compared with universal screening (none found the opposite), 2 found opportunistic superior to universal. Sensitivity analyses generally confirmed primary findings. Cost drivers included prevalence of T2DM/pre-diabetes, type of blood test used and uptake of testing. For optimal cost-effectiveness, screening for both T2DM and pre-diabetes should be initiated around age 45-50, with repeated testing every 5 years. CONCLUSIONS/IMPLICATIONS Targeted screening appears to be cost-effective compared to universal screening.
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Affiliation(s)
| | - Basil G Bereza
- a Leslie Dan Faculty of Pharmacy , University of Toronto , Canada
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Tapia J, Jensen R, Barros A, Millan M, Donoso M. Laparoscopic Radical Histerectomy for Cervical Cancer: San Bernardo Parroquial Hospital (Chile) Experience. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.764] [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: 11/25/2022]
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Zhu B, Borel PI, Geisler T, Jensen R, Leng L, Jiang X, Peckham DW, Lingle RL, Vaidya D, Yan MF, Wisk PW, DiGiovanni DJ. 800Gb/s (8x128Gb/s) unrepeatered transmission over 515-km large-area ultra-low-loss fiber using 2nd-order Raman pumping. Opt Express 2016; 24:25291-25297. [PMID: 27828467 DOI: 10.1364/oe.24.025291] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We demonstrate unrepeatered transmission of 8x128Gb/s PDM-QPSK signals over a 515k-m fiber link. This ultra-long distance of 800 Gb/s unrepeatered transmission in a single fiber configuration is achieved by employing enabling techniques such as large-effective-area ultra-low-attenuation fibers, co-propagating and counter-propagating 2nd-order-pumped distributed Raman amplification, and remote optically pumped amplifier (ROPA). The ROPA itself is also counter-propagating 2nd-order Raman pumped. The designs and characteristics of the ROPA and 2nd-order pumped distributed Raman amplification are described, and optimization of the transmission performance of this ultra-long reach 800Gb/s unrepeatered transmission fiber link is discussed in this paper.
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Wille-Jørgensen P, Borris L, Jørgensen LN, Hauch O, Lassen MR, Nehen AM, Kjær L, Jensen R. Phlebography as the Gold Standard in Thromboprophylactic Studies? Acta Radiol 2016. [DOI: 10.1177/028418519203300105] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
In 241 patients with total hip arthroplasty and entering a study on thrombosis prophylaxis, phlebography was adequately performed in 451 legs 7 to 11 days after surgery. The phlebograms were primary evaluated by 4 independent observers, and finally a consensus of the images in which disagreement primarily occurred was obtained. The diagnosis of thrombosis in the 4 primary observations varied between 65% and 83% (mean 70%) and the agreement on a negative diagnosis between 97% and 99% (mean 98%). Taking into account agreement by chance, kappa-values varied from 0.60 to 0.83 when the 6 different pairs of observations were compared. When comparing the primary evaluations with the final consensus, agreements on positive diagnosis varied between 70% and 90% (mean 80%) and on negative diagnosis between 97% and 99% (mean 98%). Kappa-values varied from 0.68 to 0.90. The factor of uncertainty in evaluation of phlebography may have to be considered when studies on postsurgical thromboprophylaxis are planned.
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Ohlsén H, Albrechtsson U, Billström Å, Calissendorff B, Gustavsson S, Jensen R, Johnsson K, Nyberg P, Strindberg L. Comparison of Iopromide versus Iohexol in Aortobifemoral Arteriography. Acta Radiol 2016. [DOI: 10.1177/028418519103200208] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A double-blind randomized, clinical trial was conducted in 9 hospitals comparing the use of non-ionic contrast media (CM) iopromide 300 (Ultravist) and iohexol 300 (Omnipaque) during peripheral arteriography in a total of 446 patients. After premedication with morphine-scopolamine each patient was given two consecutive injections of 50 ml CM at a rate of 12 ml/s above the aortic bifurcation. Both CM were well tolerated. There were no differences between the two substances as far as general tolerance, pulse rate, blood pressure, sensation of heat or pain after CM injection were concerned.
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Mørk H, Ashina M, Bendtsen L, Olesen J, Jensen R. Possible Mechanisms of Pain Perception in Patients with Episodic Tension-Type Headache. A New Experimental Model of Myofascial Pain. Cephalalgia 2016; 24:466-75. [PMID: 15154856 DOI: 10.1111/j.1468-2982.2004.00709.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A new experimental human model of myofascial pain using intramuscular infusion of a combination of bradykinin, serotonin (5-hydroxytryptamine), histamine, and prostaglandin E2 was applied to patients with episodic tension-type headache (ETTH) in order to examine pain perception. Fifteen patients with ETTH and 15 healthy controls completed the randomized, balanced, double-blinded, placebo-controlled study. Pain intensity, punctate hyperalgesia and allodynia, and pain quality were recorded. The combination induced a moderate and prolonged pain in both patients (median 51 min) ( P = 0.001) and controls (median 22 min) ( P = 0.001). Patients reported more pain than controls both after the combination ( P = 0.045) and after placebo ( P < 0.001). The McGill pain score [PRI(R)] was significantly higher in patients ( P = 0.002) and in controls ( P = 0.001), whereas pain quality and hyperalgesia were similar after the combination compared with placebo in the two groups. Due to side-effects nine subjects did not complete the study. The increased pain response, but similar qualitative pain perception, in ETTH patients may be explained by sensitization of peripheral nociceptors even though central mechanisms may also be involved.
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Affiliation(s)
- H Mørk
- Copenhagen Headache Centre, University of Copenhagen, Department of Neurology, Glostrup Hospital, Glostrup, Copenhagen, Denmark.
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Buchgreitz L, Lyngberg AC, Bendtsen L, Jensen R. Increased Prevalence of Tension-Type Headache Over a 12-Year Period is Related to Increased Pain Sensitivity. A Population Study. Cephalalgia 2016; 27:145-52. [PMID: 17257235 DOI: 10.1111/j.1468-2982.2006.01248.x] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We recently reported an increase in prevalence and frequency of tension-type headache (TTH) over a 12-year period in the young Danish population. The aim of the present study was to analyse whether this increase was related to increased pain sensitivity. The study was a cross-sectional replicate of a large Danish population study. It compared 113 subjects aged 25-36 years in 2001, with 221 comparable subjects in 1989. Tenderness was considerably higher in 2001 than in 1989. When stratified according to presence of headache, the increase in tenderness was clinically and statistically significant only in women with frequent TTH. The pressure pain threshold was significantly lower in 2001 compared with 1989 in women with frequent TTH. The increase in tenderness in the population may predict an even higher prevalence of TTH in future. The changes support the hypothesis of central sensitization in TTH.
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Affiliation(s)
- L Buchgreitz
- Danish Headache Centre, Department of Neurology, Glostrup Hospital, University of Copenhagen, Copenhagen, Denmark.
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Abstract
The aim of the present study was to investigate the impact of static contraction of the shoulder and neck muscles on muscle tenderness and headache in patients with tension-type headache. Twenty patients with frequent episodic tension-type headache and 20 healthy age- and sex-matched controls were examined using a placebo-controlled cross-over design. The subjects performed static contraction of the trapezius muscles (active procedure) or the anterior tibial muscles (placebo procedure) with 10% of maximal force for 30 min. Total tenderness score, local tenderness score and headache intensity were evaluated before and after the static work. Changes in headache intensity were followed for 24 h. Pericranial tenderness increased significantly more in patients than in controls after the active procedure ( P = 0.04). The increase in pericranial tenderness tended to be higher after the active procedure than after the placebo procedure in patients ( P = 0.08) and in controls ( P = 0.07). Sixty per cent of the patients and 20% of the healthy controls developed headache after the active procedure. Fifty per cent of the patients and none of the controls developed headache after the placebo procedure. There was no significant difference in headache development between the active and the placebo procedure in patients or controls. These findings demonstrate that tension-type headache patients are more liable to develop shoulder and neck pain in response to static exercise than healthy controls.
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Affiliation(s)
- M B Christensen
- Danish Headache Centre and Department of Neurology, Glostrup Hospital, University of Copenhagen, Denmark.
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Abstract
The role of non-pharmacological therapies in the preventive treatment of tension-type headache (TTH) is still an object of debate. The primary aim of this study was therefore to investigate the therapeutic effect of physiotherapy in properly classified patients with TTH in a controlled trial. Fifty patients with TTH, 26 with episodic, frequent (ETTH) and 24 with chronic TTH (CTTH) fulfilling the International Headache Society classification criteria were included in the study. After a 4-week run-in period, they were randomized to either an 8-week period of standardized physiotherapy (group 1) or to an 8-week observation period followed by an identical course of physiotherapy (group 2); after the physiotherapy all patients were followed for a 12-week follow-up period. We then evaluated the number of days with headache, severity and duration of the headache attacks, and drug consumption for symptomatic treatment before and after the course of physiotherapy. Forty-eight patients completed the study. The average number of days with headache per 4-week period was reduced from 16.3 days at baseline to 12.3 days in the last 4 weeks of treatment [from 14.5 days to 10.5 days ( P < 0.001) in group 1 and from 18.1 days to 14.1 days ( P < 0.001) in group 2]. Severity and duration of headache as well as drug consumption were unchanged throughout the study. Analysing the response to treatment separately in the various subgroups, we found that the number of responders was significantly higher among patients with CTTH vs. patients with ETTH ( P < 0.002) and in females vs. males ( P < 0.02). No differences were found between patients with and without disorder of pericranial muscles. We conclude that a standardized physiotherapy programme has a good therapeutic effect, albeit on a restricted group of patients.
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Affiliation(s)
- P Torelli
- Headache Centre, Unit of Neurology, Department of Neuroscience, University of Parma, Strada del Quartiere 4, 43100 Parma, Italy.
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Abstract
Despite the high prevalence of headaches, multidisciplinary headache clinics are few and their efficacy still needs validation. We set out to describe the procedures, characterize the patients and evaluate the treatment results in Danish Headache Centre. All clinical records for patients discharged in 2002 were systematically reviewed. Diagnoses were classified in accordance with ICHD-II. Outcome results were analysed with respect to headache diagnoses, frequency, intensity, absence from work and medication use. Five hundred and five patients were included and 336 were eligible for the study. Mean age was 46 years and male/female ratio 1 : 2.4. For patients without medication overuse headache (MOH) a reduction in headache frequency (P < 0.01) and intensity ( P < 0.05) was seen for frequent episodic and chronic tension-type headache (TTH), migraine, cluster and other headaches. No reduction was seen in post-traumatic headache. Absence from work decreased significantly for migraine ( P < 0.001) and frequent episodic TTH (P < 0.05). For patients with MOH a reduction in headache frequency was seen for TTH and migraine ( P < 0.001). A specialized headache centre is valuable in treatment of patients with complex headache disorders.
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Affiliation(s)
- P Zeeberg
- Danish Headache Centre, Department of Neurology, University of Copenhagen, Glostrup Hospital, Glostrup, Denmark.
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Abstract
The level of agreement between headache information, attained by clinical interview and headache diary, was evaluated in subjects who frequently suffered from headache and were participating in an epidemiological study of headache. One hundred and six subjects were interviewed and asked to complete a diary for a period of 4–8 weeks; 46% completed the study. For migraine the diary and clinical diagnoses demonstrated agreement in 82%, κ value 0.57, sensitivity 90% and specificity 64%. For tension-type headache they demonstrated agreement in 87%, κ value 0.39, sensitivity 97%, specificity 29% and a good agreement of frequency of tension-type headache was also obtained. In migraine, but not in tension-type headache, accompanying symptoms tended to be overestimated in the interview. The diary was not useful for the diagnosis of migraine with aura, but proved valuable in distinguishing between migraine and tension-type headache, and in the identification of coexisting headache disorders. Combined use of a diagnostic diary and clinical interview is recommended.
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Affiliation(s)
- D Phillip
- Danish Headache Centre, Department of Neurology, Copenhagen University Hospital, Glostrup, Denmark.
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Modzelewska K, Picard D, Boer E, Miles R, Jensen R, Pysher T, Schiffman J, Jette C, Huang A, Stewart R. PM-12 * USING A ZEBRAFISH PEDIATRIC BRAIN TUMOR MODEL FOR PRE-CLINICAL DRUG SCREENING. Neuro Oncol 2015. [DOI: 10.1093/neuonc/nov061.134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Gejl KD, Hvid LG, Willis SJ, Andersson E, Holmberg HC, Jensen R, Frandsen U, Hansen J, Plomgaard P, Ørtenblad N. Repeated high-intensity exercise modulates Ca2+sensitivity of human skeletal muscle fibers. Scand J Med Sci Sports 2015; 26:488-97. [DOI: 10.1111/sms.12483] [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: 03/26/2015] [Indexed: 12/17/2022]
Affiliation(s)
- K. D. Gejl
- Department of Sports Science and Clinical Biomechanics; SDU Muscle Research Cluster; University of Southern Denmark; Odense Denmark
| | - L. G. Hvid
- Department of Sports Science and Clinical Biomechanics; SDU Muscle Research Cluster; University of Southern Denmark; Odense Denmark
| | - S. J. Willis
- Department of Health Sciences; Swedish Winter Sports Research Centre; Mid Sweden University; Östersund Sweden
| | - E. Andersson
- Department of Health Sciences; Swedish Winter Sports Research Centre; Mid Sweden University; Östersund Sweden
| | - H.-C. Holmberg
- Department of Health Sciences; Swedish Winter Sports Research Centre; Mid Sweden University; Östersund Sweden
- Swedish Olympic Committee; Stockholm Sweden
| | - R. Jensen
- Department of Sports Science and Clinical Biomechanics; SDU Muscle Research Cluster; University of Southern Denmark; Odense Denmark
| | - U. Frandsen
- Department of Sports Science and Clinical Biomechanics; SDU Muscle Research Cluster; University of Southern Denmark; Odense Denmark
| | - J. Hansen
- Department of Infectious Diseases and CMRC; The Centre of Inflammation and Metabolism; Rigshospitalet; Copenhagen Denmark
- Department of Clinical Biochemistry; Rigshospitalet; Copenhagen Denmark
| | - P. Plomgaard
- Department of Infectious Diseases and CMRC; The Centre of Inflammation and Metabolism; Rigshospitalet; Copenhagen Denmark
- Department of Clinical Biochemistry; Rigshospitalet; Copenhagen Denmark
| | - N. Ørtenblad
- Department of Sports Science and Clinical Biomechanics; SDU Muscle Research Cluster; University of Southern Denmark; Odense Denmark
- Department of Health Sciences; Swedish Winter Sports Research Centre; Mid Sweden University; Östersund Sweden
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Tibaek S, Gard G, Dehlendorff C, Iversen H, Erdal J, Biering-Soerensen F, Dorey G, Jensen R. The effect of pelvic floor muscle training on sexual function in men with lower urinary tract symptoms after stroke. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.1504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Tibaek S, Gard G, Dehlendorff C, Iversen HK, Erdal J, Biering-Sørensen F, Dorey G, Jensen R. The effect of pelvic floor muscle training on sexual function in men with lower urinary tract symptoms after stroke. Top Stroke Rehabil 2015; 22:185-93. [PMID: 25779892 DOI: 10.1179/1074935714z.0000000019] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
BACKGROUND Erectile dysfunction and lower urinary tract symptoms (LUTS) are common sequelae in men after stroke. OBJECTIVE The objective of this study was to evaluate the effect of pelvic floor muscle training (PFMT) on measured erectile function as an indicator of sexuality in men with LUTS after stroke. METHOD A sample of 516 men with stroke was invited to participate in this single-blinded, randomized controlled trial according to in- and exclusion criteria. This resulted in 31 participants who were randomized to either a Treatment Group (n = 16) or a Control Group (n = 15). The intervention included 12♣weeks of PFMT. The effect was measured on the International Index of Erectile Function (IIEF-5) questionnaire. RESULTS Thirty participants (median age: 68 years; interquartile range: 60-74 years) completed the study, 15 in each group. The results of the IIEF-5 sum score showed a significant improvement (P < 0.04) from pre-test to post-test in the Treatment Group, but not in the Control Group. Within pre-test and 6-month follow-up, the median sum score decreased in both groups, worsened in the Control Group [Treatment Group, 3 (17%) versus Control Group, 5 (31%)]. There were differences between the groups at post-test and at follow-up, but they were not statistically significant. CONCLUSION The results showed that, as measured by erectile function in men with LUTS after stroke, PFMT may have short-term and long-term effect, although no statistically significant effect was demonstrated between the groups.
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Barloese M, Lund N, Petersen A, Rasmussen M, Jennum P, Jensen R. Sleep and chronobiology in cluster headache. Cephalalgia 2015; 35:969-78. [PMID: 25573893 DOI: 10.1177/0333102414564892] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [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: 09/05/2014] [Accepted: 11/10/2014] [Indexed: 11/15/2022]
Abstract
BACKGROUND AND AIM Cluster headache (CH) is the headache disorder with the strongest chronobiological traits. The severe attacks of pain occur with diurnal and annual rhythmicity but the precise rhythm and involvement of potential zeitgebers is unknown. Patients complain of poor sleep quality yet this has never been studied. We investigated triggers, rhythms, sleep quality and chronotypes in CH. METHODS Patients and controls completed questionnaires and structured interviews composed of new and previously validated parts including the Pittsburgh Sleep Quality Index (PSQI) and Morningness-Eveningness Questionnaire (MEQ). Patients were characterized by a CH index, a unified measure of headache burden. RESULTS A total of 275 CH patients and 145 matched controls were included. The most common trigger was sleep (80%) and a relationship between clusters and daylight was identified. Of the patients, 82.2% reported diurnal and 56% annual rhythmicity. Patients reported impaired sleep quality (PSQI) (p < 0.0001) and an inverse relationship between time passed since last attack and sleep quality was identified (p < 0.0001). The CH index was positively related to the PSQI (p < 0.0001). CONCLUSION Diurnally, CH exhibits a relationship with night-time and annually with daylight hours. Patients' sleep quality is reduced compared with controls. Results suggest a complex relationship as sleep quality improves between clusters, but remains pathological.
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Affiliation(s)
- M Barloese
- Danish Headache Center, Dept. of Neurology
| | - N Lund
- Danish Headache Center, Dept. of Neurology
| | - A Petersen
- Danish Headache Center, Dept. of Neurology
| | | | - P Jennum
- Danish Center for Sleep Medicine, Dept. of Neurophysiology, Glostrup Hospital, University of Copenhagen, Denmark
| | - R Jensen
- Danish Headache Center, Dept. of Neurology
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Yri H, Munksgaard S, Bendtsen L, Jensen R. EHMTI-0156. Quantitative sensory testing in patients with headache attributed by idiopathic intracranial hypertension – a case-control study. J Headache Pain 2014. [PMCID: PMC4181458 DOI: 10.1186/1129-2377-15-s1-c65] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Barloese M, Jennum P, Lund N, Knudsen S, Gammeltoft S, Jensen R. EHMTI-0149. Low CSF hypocretin-1 levels are associated with cluster headache. J Headache Pain 2014. [PMCID: PMC4182208 DOI: 10.1186/1129-2377-15-s1-e14] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Yri H, Rönnbäck C, Wegener M, Hamann S, Jensen R. EHMTI-0155. The course of headache in idiopathic intracranial hypertension: a 12 month prospective follow-up study. J Headache Pain 2014. [PMCID: PMC4180467 DOI: 10.1186/1129-2377-15-s1-c64] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Ashina S, Lyngberg AC, Bendtsen L, Buse D, Lipton RB, Jensen R. EHMTI-0291. Chronic headache is associated with mental vulnerability, depression, and neuroticism and poor mental health-related quality of life: a cross-sectional population study. J Headache Pain 2014. [PMCID: PMC4180862 DOI: 10.1186/1129-2377-15-s1-b2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Uldall M, Bhatt D, Kruuse C, Juhler M, Jansen-Olesen I, Jensen R. EHMTI-0077. Obesity-related intracranial hypertension in the rat – a possible idiopathic intracranial hypertension (IIH) model? J Headache Pain 2014. [PMCID: PMC4181892 DOI: 10.1186/1129-2377-15-s1-f29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Lund N, Westergaard M, Barloese M, Glümer C, Jensen R. EHMTI-0164. Concurrent headache and sleep problems: findings from the Danish national health survey. J Headache Pain 2014. [PMCID: PMC4181457 DOI: 10.1186/1129-2377-15-s1-b19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Tornøe B, Andersen LL, Skotte JH, Jensen R, Jensen C, Madsen BK, Gard G, Skov L, Hallström I. EHMTI-0157. Specific strength training compared with interdisciplinary counselling for girls with tension-type headache – a randomised controlled trial. J Headache Pain 2014. [PMCID: PMC4182249 DOI: 10.1186/1129-2377-15-s1-e37] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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