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Sökning: WFRF:(Ovesen H)

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2.
  • Sloot, Frea, et al. (författare)
  • Inventory of current EU paediatric vision and hearing screening programmes
  • 2015
  • Ingår i: Journal of Medical Screening. - : SAGE Publications. - 0969-1413 .- 1475-5793. ; 22:2, s. 55-64
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: To examine the diversity in paediatric vision and hearing screening programmes in Europe. Methods: Themes for comparison of screening programmes derived from literature were used to compile three questionnaires on vision, hearing, and public health screening. Tests used, professions involved, age, and frequency of testing seem to influence sensitivity, specificity, and costs most. Questionnaires were sent to ophthalmologists, orthoptists, otolaryngologists, and audiologists involved in paediatric screening in all EU full-member, candidate, and associate states. Answers were cross-checked. Results: Thirty-nine countries participated; 35 have a vision screening programme, 33 a nation-wide neonatal hearing screening programme. Visual acuity (VA) is measured in 35 countries, in 71% of these more than once. First measurement of VA varies from three to seven years of age, but is usually before age five. At age three and four, picture charts, including Lea Hyvarinen, are used most; in children over four, Tumbling-E and Snellen. As first hearing screening test, otoacoustic emission is used most in healthy neonates, and auditory brainstem response in premature newborns. The majority of hearing testing programmes are staged; children are referred after 1–4 abnormal tests. Vision screening is performed mostly by paediatricians, ophthalmologists, or nurses. Funding is mostly by health insurance or state. Coverage was reported as >95% in half of countries, but reporting was often not first-hand. Conclusion: Largest differences were found in VA charts used (12), professions involved in vision screening (10), number of hearing screening tests before referral (1–4), and funding sources (8).
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3.
  • Buunen, M, et al. (författare)
  • COLOR II. A randomized clinical trial comparing laparoscopic and open surgery for rectal cancer.
  • 2009
  • Ingår i: Danish medical bulletin. - 1603-9629 .- 0907-8916. ; 56:2, s. 89-91
  • Tidskriftsartikel (refereegranskat)abstract
    • INTRODUCTION: Laparoscopic resection of rectal cancer has been proven efficacious but morbidity and oncological outcome need to be investigated in a randomized clinical trial. Trial design: Non-inferiority randomized clinical trial. METHODS: The COLOR II trial is an ongoing international randomized clinical trial. Currently 27 hospitals from Europe, South Korea and Canada are including patients. The primary endpoint is loco-regional recurrence rate three years post-operatively. Secondary endpoints cover quality of life, overall and disease free survival, post-operative morbidity and health economy analysis. RESULTS: By July 2008, 27 hospitals from the Netherlands, Belgium, Germany, Sweden, Spain, Denmark, South Korea and Canada had included 739 patients. The intra-operative conversion rate in the laparoscopic group was 17%. Distribution of age, location of the tumor and radiotherapy were equal in both treatment groups. Most tumors are located in the mid-rectum (41%). CONCLUSION: Laparoscopic surgery in the treatment of rectal cancer is feasible. The results and safety of laparoscopic surgery in the treatment of rectal cancer remain unknown, but are subject of interim analysis within the COLOR II trial. Completion of inclusion is expected by the end of 2009. Trial registration: Clinicaltrials.gov, identifier: NCT00297791 (www.clinicaltrials.gov).
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4.
  • Glerup, S., et al. (författare)
  • SorCS2 is required for BDNF-dependent plasticity in the hippocampus
  • 2016
  • Ingår i: Molecular Psychiatry. - : Springer Science and Business Media LLC. - 1359-4184 .- 1476-5578. ; 21:12, s. 1740-1751
  • Tidskriftsartikel (refereegranskat)abstract
    • SorCS2 is a member of the Vps10p-domain receptor gene family receptors with critical roles in the control of neuronal viability and function. Several genetic studies have suggested SORCS2 to confer risk of bipolar disorder, schizophrenia and attention deficithyperactivity disorder. Here we report that hippocampal N-methyl-D-aspartate receptor-dependent synaptic plasticity is eliminated in SorCS2-deficient mice. This defect was traced to the ability of SorCS2 to form complexes with the neurotrophin receptor p75(NTR), required for pro-brain-derived neurotrophic factor (BDNF) to induce long-term depression, and with the BDNF receptor tyrosine kinase TrkB to elicit long-term potentiation. Although the interaction with p75(NTR) was static, SorCS2 bound to TrkB in an activitydependent manner to facilitate its translocation to postsynaptic densities for synaptic tagging and maintenance of synaptic potentiation. Neurons lacking SorCS2 failed to respond to BDNF by TrkB autophosphorylation, and activation of downstream signaling cascades, impacting neurite outgrowth and spine formation. Accordingly, Sorcs2(-/-) mice displayed impaired formation of long-term memory, increased risk taking and stimulus seeking behavior, enhanced susceptibility to stress and impaired prepulse inhibition. Our results identify SorCS2 as an indispensable coreceptor for p75(NTR) and TrkB in hippocampal neurons and suggest SORCS2 as the link between proBDNF/BDNF signaling and mental disorders.
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5.
  • Ovesen, C., et al. (författare)
  • Feasibility of endovascular and surface cooling strategies in acute stroke
  • 2013
  • Ingår i: Acta Neurologica Scandinavica. - : Hindawi Limited. - 1600-0404 .- 0001-6314. ; 127:6, s. 399-405
  • Tidskriftsartikel (refereegranskat)abstract
    • Background Therapeutic hypothermia (TH) is a promising treatment of stroke, but limited data are available regarding the safety and effectiveness of cooling methodology. We investigated the safety of TH and compared the cooling capacity of two widely used cooling strategies endovascular and surface cooling. Methods COOLAID Oresund is a bicentre randomized trial in Copenhagen (Denmark) and Malmo (Sweden). Patients were randomized to either TH (33 degrees C for 24h) in a general intensive care unit (ICU) or standardized stroke unit care (control). Cooling was induced by a surface or endovascular-based strategy. Results Thirty-one patients were randomized. Seven were cooled using endovascular and 10 using surface-based cooling methods and 14 patients received standard care (controls). 14 (45%) patients received thrombolysis. Pneumonia was recorded in 6 (35%) TH patients and in 1 (7%) control. 4 TH patients and 1 control developed massive infarction. 1 TH patient and 2 control suffered asymptomatic haemorrhagic transformation. Mortality was comparable with 2 (12%) in the TH group and 1 (7%) among controls. Mean (SD) duration of hospital stay was 25.0days (24, 9) in TH and 22.5days (20.6) in control patients (P=0.767). Mean (SD) induction period (cooling onset to target temperature) was 126.3min (80.6) with endovascular cooling and 196.3min (76.3) with surface cooling (P=0.025). Conclusions Therapeutic hypothermia with general anaesthesia is feasible in stroke patients. We noticed increased rates of pneumonia, while the length of hospital stay remained comparable. The endovascular cooling strategy provides a faster induction period than surface cooling.
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6.
  • Ovesen, Rikke G., et al. (författare)
  • A liquid chromatography-electrospray ionization-mass spectrometry method for quantification of cyclotides in plants avoiding sorption during sample preparation
  • 2011
  • Ingår i: Journal of Chromatography A. - : Elsevier BV. - 0021-9673 .- 1873-3778. ; 1218:44, s. 7964-7970
  • Tidskriftsartikel (refereegranskat)abstract
    • Cyclotides are plant-produced, bioactive, cyclic mini-proteins with interesting pharmaceutical and agricultural applications. A reverse phase liquid chromatography electrospray ionization mass spectrometry (RP-LC-ESI-MS) method for analysis of cyclotides in plant materials with a minimum of sample pretreatment is presented. Three exemplary cyclotides (kalata B1, kalata B2 and cycloviolacin 02) were used as reference substances for the method development. Linearity (r(2) > 0.99) was achieved in the concentration range 0.05-10 mg/L and the limit of detection was 1.7-4.0 mu g/L. The present study is the first to demonstrate that cyclotides dissolved in water sorb to glass vials, but the addition of 15% of acetonitrile or 40 mg/L of bovine serum albumin is sufficient to keep the cyclotides in solution. Cyclotides were extracted from candied violets, violet tea, and the plants Oldenlandia affinis and Viola odorata using 70% methanol containing 0.1% formic acid (v/v). The plant content was determined to be 23.5-14,200 mu g/g (dry weight). The highest content of cyclotide was found in wild Danish V. odorata, and it is the highest content of cyclotide in a plant reported hitherto. Candied violets contained 0.00-8.66 mu g/g (dry weight), while no cyclotides were detected in commercial violet tea.
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7.
  • Silvola, Juha T., et al. (författare)
  • The status of Eustachian tube balloon dilations in Nordic countries
  • 2019
  • Ingår i: World Journal of Otorhinolaryngology - Head and Neck Surgery. - : KeAi. - 2589-1081 .- 2095-8811. ; 5:3, s. 148-151
  • Tidskriftsartikel (refereegranskat)abstract
    • There is no unanimous consensus for indications of eustachian tube balloon dilation (ETBD). Nordic countries have relatively similar hospital organizations and treatment guidelines. Therefore, it was logical to organize a consensus meeting of ETBD. The symposium: Nordic Experiences on Eustachian Tube Balloon Dilation, in Copenhagen, 30-31 March, 2017. The panellists from Denmark, Finland, Norway and Sweden and the attendees of the meeting agreed a consensus on the following issues: Candidates, Definition of Eustachian Tube Dysfunction, Diagnostic Work up, Differential Diagnosis, Contraindications, ETBD Procedure, Complications, Follow-up, and Outcomes. The article also presents the status for ETBD in each of these countries. Thereafter the consensus statement has been discussed in the national societies and meetings for ear surgeons in each of these countries. It can be assumed that surgeons in the hospitals of these Nordic countries generally follow the recommendations from the consensus meeting.
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