Now showing items 861-880 of 1059

    • Does an activity based remuneration system attract young doctors to general practice? 

      Abelsen, Birgit; Olsen, Jan Abel (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      The use of increasingly complex payment schemes in primary care may represent a barrier to recruiting general practitioners (GP). The existing Norwegian remuneration system is fully activity based - 2/3 fee-for-service and 1/3 capitation. Given that the system has been designed and revised in close collaborations with the medical association, it is likely to correspond - at least to some degree - ...
    • Prevalence of hepatitis B & hepatitis C virus infections in potential blood donors in rural Vietnam 

      Le, Viet; Nguyen, Thi Ngoc Lan; Ty, Phung Xuan; Bjørkvoll, Bjørn; Hoel, Hedda B; Gutteberg, Tore Jarl; Husebekk, Anne; Larsen, Stig; Skjerve, Eystein; Husum, Hans (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Safe blood and blood products should be offered to all patients in need for blood transfusion. The objectives of the present study were to establish prevalence estimates for hepatitis B and hepatitis C virus infections as a foundation for safe blood transfusion in rural Vietnam, and to check the accuracy of the laboratory analysis used for hepatitis testing of blood donors in Vietnam. A cross-sectional ...
    • The Red flag! risk assessment among medical homeopaths in Norway: a qualitative study 

      Stub, Trine; Alræk, Terje; Salamonsen, Anita (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Homeopathy is widely used, and many European physicians practice homeopathy in addition to conventional medicine. Adverse effects in homeopathy are not expected by homeopaths due to the negligible quantities of active substances in a remedy. However, we questioned if homeopathic aggravation, which is described as a temporary worsening of existing symptoms following a correct homeopathic remedy, ...
    • Validation of sick leave measures: self-reported sick leave and sickness benefit data from a Danish national register compared to multiple workplace-registered sick leave spells in a Danish municipality 

      Stapelfeldt, Christina Malmose; Jensen, Chris; Andersen, Niels Trolle; Fleten, Nils; Nielsen, Claus Vinther (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Previous validation studies of sick leave measures have focused on self-reports. Register-based sick leave data are considered to be valid; however methodological problems may be associated with such data. A Danish national register on sickness benefit (DREAM) has been widely used in sick leave research. On the basis of sick leave records from 3,554 and 2,311 eldercare workers in 14 different ...
    • Agreement between diagnoses of childhood lymphoma assigned in Uganda and by an international reference laboratory 

      Orem, J; Sandin, S; Weibull, CE; Odida, M; Wabinga, H; Mbidde, EK; Wabwire-Mangen, F; Meijer, CJ; Middeldorp, JM; Weiderpass, Elisabete (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Correct diagnosis is key to appropriate treatment of cancer in children. However, diagnostic challenges are common in low-income and middle-income countries. The objective of the present study was to assess the agreement between a clinical diagnosis of childhood non-Hodgkin lymphoma (NHL) assigned in Uganda, a pathological diagnosis assigned in Uganda, and a pathological diagnosis assigned in The ...
    • Improving response rate and quality of survey data with a scratch lottery ticket incentive 

      Olsen, Frank; Abelsen, Birgit; Olsen, Jan Abel (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      The quality of data collected in survey research is usually indicated by the response rate; the representativeness of the sample, and; the rate of completed questions (item-response). In attempting to improve a generally declining response rate in surveys considerable efforts are being made through follow-up mailings and various types of incentives. This study examines effects of including a scratch ...
    • Polyphyletic origin of the genus Physarum (Physarales, Myxomycetes) revealed by nuclear rDNA mini-chromosomal analysis and group I intron synapomorphy 

      Nandipati, Satish C R; Haugli, Kari B.; Coucheron, Dag-Hugo; Haskins, Edward F.; Johansen, Steinar (Journal article; Tidsskriftartikkel; Peer reviewed, 2012-08-31)
      Physarales represents the largest taxonomic order among the plasmodial slime molds (myxomycetes). Physarales is of particular interest since the two best-studied myxomycete species, Physarum polycephalum and Didymium iridis, belong to this order and are currently subjected to whole genome and transcriptome analyses. Here we report molecular phylogeny based on ribosomal DNA (rDNA) sequences that ...
    • Borrelia burgdorferi sensu lato in Ixodes ricinus ticks from Norway: evaluation of a PCR test targeting the chromosomal flaB gene 

      Jenkins, Andrew; Hvidsten, Dag; Matussek, Andreas; Lindgren, Per-Eric; Stuen, Snorre; Kristiansen, Bjørn-Erik (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      A consensus TaqMan real-time PCR test targeting the chromosomal flaB gene of Borrelia burgdorferi sensu lato was constructed. The test was compared with a recently published generic Light Upon eXtension (LUX) 16S rRNA real-time PCR test (Wilhelmsson et al. in J Clin Microbiol 48:4169–4176, 2010) on material consisting of 242 Ixodes ricinus ticks collected from dogs and cats in Northern Norway (n = ...
    • Mass-spectrometric studies of new 6-nitroquipazines-serotonin transporter inhibitors 

      Witowska-Jarosz, Janina; Jaronczyk, Malgorzata; Mazurek, Aleksander P; Sylte, Ingebrigt; Bojarski, Andrezej J; Chilmonczyk, Zdzislaw; Jarosz, Maciej (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Six synthesized 6-nitroquipazine derivatives were examined by electron ionization (EI) and electrospray ionization (ESI) mass spectrometry in positive and negative ion mode. The compounds exhibit high affinity for the serotonin transporter (SERT) and belong to a new class of SERT inhibitors. The EI mass spectra registered in negative ion mode showed prominent molecular ions for all the compounds ...
    • Quiescence and gamma H2AX in neuroblastoma are regulated by ouabain/Na,K-ATPase 

      Hiyoshi, H; Abdelhady, S; Segerström, L; Sveinbjørnsson, Baldur; Nuriya, M; Lundgren, T; Desfrere, L; Miyakawa, A; Yasui, M.; Kogner, P; Johnsen, JI; Andang, M; Uhlén, P (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Cellular quiescence is a state of reversible proliferation arrest that is induced by anti-mitogenic signals. The endogenous cardiac glycoside ouabain is a specific ligand of the ubiquitous sodium pump, Na,K-ATPase, also known to regulate cell growth through unknown signalling pathways. To investigate the role of ouabain/Na,K-ATPase in uncontrolled neuroblastoma growth we used xenografts, flow ...
    • The proteoglycan repertoire of lymphoid cells 

      Fadnes, Bodil Irene; Husebekk, Anne; Svineng, Gunbjørg; Rekdal, Øystein; Yanagishita, Masaki; Kolset, Svein Olav; Uhlin-Hansen, Lars (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Proteoglycans have been studied to a limited extent in lymphoid cells. In this study we have investigated the expression of proteoglycans in B-cells, CD4+ T-cells, CD8+ T-cells, natural killer cells, as well as in nine different cell lines established from patients with lymphoid malignancies. Serglycin was the major proteoglycan expressed at mRNA level by the primary lymphocytes. None of the syndecans ...
    • Occurrence and levels of organochlorine compounds in human breast milk in Bangladesh 

      Bergkvist, Charlotte; Aune, Marie; Nilsson, Ingrid; Sandanger, Torkjel Manning; Hamadani, Jena Derakhshani; Tofail, Fahmida; Odland, Jon Øyvind; Kabir, Iqbal; Vahter, Marie (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      In low-income countries, the use of some organochlorine pesticides is still common in order to increase food production. Monitoring the chemical exposure is an important step in risk-reducing strategies. This is the first study to report concentrations of organochlorines in breast milk of women from Bangladesh where farming is the main income source. Organochlorines such as p,p′-DDT, o,p′-DDT, ...
    • Influence of common genetic variation on lung cancer risk: meta-analysis of 14 900 cases and 29 485 controls 

      Timofeeva, MN; Hung, RJ; Rafnar, T; Christiani, DC; Field, JK; Bickeboller, H; Risch, A; McKay, JD; Wang, Y; Dai, J; Gaborieau, V; McLaughlin, J; Brenner, D; Narod, SA; Caporaso, NE.; Albanes, D; Thun, M; Eisen, T; Wichmann, HE; Rosenberger, A; Han, Y; Chen, W; Zhu, D; Spitz, M; Wu, X; Pande, M; Zhao, Y; Zaridze, D; Szeszenia-Dabrowska, N; Lissowska, J; Rudnai, P; Fabianova, E; Mates, D; Bencko, V; Foretova, L; Janout, V; Krokan, Hans Einar; Gabrielsen, Maiken Elvestad; Skorpen, Frank; Vatten, Lars Johan; Njølstad, Inger; Chen, C; Goodman, G; Lathrop, M; Benhamou, S; Vooder, T; Valk, K; Nelis, M; Metspalu, Andres; Raji, O; Chen, Y; Gosney, J; Liloglou, T; Muley, T; Dienemann, H; Thorleifsson, G; Shen, H.; Stefansson, Kari; Brennan, Paul; Amos, CI; Houlston, Richard; Landi, MT (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Recent genome-wide association studies (GWASs) have identified common genetic variants at 5p15.33, 6p21–6p22 and 15q25.1 associated with lung cancer risk. Several other genetic regions including variants of CHEK2 (22q12), TP53BP1 (15q15) and RAD52 (12p13) have been demonstrated to influence lung cancer risk in candidate- or pathway-based analyses. To identify novel risk variants for lung cancer, we ...
    • The Relationship between Fenestrations, Sieve Plates and Rafts in Liver Sinusoidal Endothelial Cells 

      Svistounov, Dmitri; Warren, Alessandra; McNerney, Gregory P; Owen, Dylan M.; Zencak, Dusan; Zykova, Svetlana N; Crane, Harry; Huser, Thomas; Quinn, Ronald J.; Smedsrød, Bård; Le Couteur, David G; Cogger, Victoria C (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Fenestrations are transcellular pores in endothelial cells that facilitate transfer of substrates between blood and the extravascular compartment. In order to understand the regulation and formation of fenestrations, the relationship between membrane rafts and fenestrations was investigated in liver sinusoidal endothelial cells where fenestrations are grouped into sieve plates. Three dimensional ...
    • Staphylococcus aureus nasal carriage is associated with serum 25-hydroxyvitamin D levels, gender and smoking status. The Tromso Staph and Skin Study 

      Olsen, Karina; Falch, Birgit Margrethe; Danielsen, Kjersti; Johannessen, Mona; Sollid, Johanna U Ericson; Thune, Inger; Grimnes, Guri; Jorde, Rolf; Simonsen, Gunnar Skov; Furberg, Anne-Sofie (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Vitamin D induces the expression of antimicrobial peptides with activity against Staphylococcus aureus. Thus, we studied the association between serum 25-hydroxyvitamin D (25(OH)D) and S. aureus nasal colonization and carriage. Nasal swabs, blood samples and clinical data from 2,115 women and 1,674 men, aged 30–87 years, were collected in the Tromsø Staph and Skin Study 2007–08, as part of the ...
    • Multi-Locus variable number of tandem repeat analysis for rapid and accurate typing of virulent multidrug resistant escherichia coli clones 

      Naseer, Mohammed Umaer; Olsson-Liljequist, Barbro; Woodford, Neil; Dhanji, Hiran; Canton, Rafael; Sundsfjord, Arnfinn; Lindstedt, Bjørn Arne (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      One hundred E. coli isolates from Norway (n = 37), Sweden (n = 24), UK (n = 20) and Spain (n = 19), producing CTX-M-type - (n = 84), or SHV-12 (n = 4) extended spectrum β-lactamases, or the plasmid mediated AmpC, CMY-2 (n = 12), were typed using multi-locus sequence typing (MLST) and multi-locus variable number of tandem repeat analysis (MLVA). Isolates clustered into 33 Sequence Types (STs) and 14 ...
    • Bone Turnover and Metabolism in Patients with Early Multiple Sclerosis and Prevalent Bone Mass Deficit: A Population-Based Case-Control Study 

      Moen, Stine Marit; Celius, Elisabeth Gulowsen; Sandvik, Leiv; Brustad, Magritt; Nordsletten, Lars; Eriksen, Erik Fink; Holmøy, Trygve (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Low bone mass is prevalent in ambulatory multiple sclerosis (MS) patients even shortly after clinical onset. The mechanism is not known, but could involve shared etiological risk factors between MS and low bone mass such as hypovitaminosis D operating before disease onset, or increased bone loss after disease onset. The aim of this study was to explore the mechanism of the low bone mass in early-stage ...
    • Body mass index and mortality in elderly men and women: the Tromso and HUNT studies 

      Kvamme, Jan-Magnus; Holmen, Jostein; Wilsgaard, Tom; Florholmen, Jon; Midthjell, Kristian; Jacobsen, Bjarne Koster (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      The impact of body mass index (BMI; kg/m2) and waist circumference (WC) on mortality in elderly individuals is controversial and previous research has largely focused on obesity. With special attention to the lower BMI categories, associations between BMI and both total and cause-specific mortality were explored in 7604 men and 9107 women aged ≥65 years who participated in the Tromsø Study (1994–1995) ...
    • Ovarian cancer and smoking: individual participant meta-analysis including 28 114 women with ovarian cancer from 51 epidemiological studies 

      Gaitskell, K; Hermon, C; Moser, K; Reeves, G; Peto, R; Brinton, L; Marchbanks, P; Negri, E; Ness, R; Peeters, PHM; Vessey, M; Calle, EE; Gapstur, SM; Patel, AV; Dal Maso, L; Talamini, R; Chetrit, A; Hirsh-Yechezkel, G; Lubin, F; Sadetzki, S; Banks, E; Beral, V; Bull, D; Callaghan, K; Crossley, B; Goodill, A; Green, J; Key, T; Sitas, F; Collins, R; Doll, R; Gonzalez, A; Lee, N; Ory, HW; Peterson, HB; Wingo, PA; Martin, N; Pardthaisong, T; Silpisornkosol, S; Theetranont, C; Boosiri, B; Chutivongse, S; Jimakorn, P; Virutamasen, P; Wongsrichanalai, C; Tjonneland, A; Titus-Ernstoff, L; Byers, T; Rohan, T; Mosgaard, BJ; Yeates, D; Freudenheim, JL; Chang-Claude, J; Kaaks, R; Anderson, KE; Folsom, A; Robien, K; Hampton, J; Newcomb, PA; Rossing, MA; Thomas, DB; Weiss, NS; Riboli, E; Clavel-Chapelon, F; Cramer, D; Hankinson, SE; Tworoger, SS; Franceschi, S; La Vecchia, C; Adami, HO; Magnusson, C; Riman, T; Weiderpass, Elisabete; Wolk, A; Schouten, LJ; van den Brandt, PA; Chantarakul, N; Koetsawang, S; Rachawat, D; Palli, D; Black, A; Brinton, LA; Freedman, DM; Hartge, P; Hsing, AW; Lacey, JV; Hoover, RN; Schairer, C; Urban, M; Graff-Iversen, Sidsel; Selmer, Randi; Bain, CJ; Green, AC; Purdie, DM; Siskind, V; Webb, PM; Moysich, K; McCann, SE; Hannaford, P; Kay, C; Binns, CW; Lee, AH; Zhang, M; Ness, RB; Nasca, P; Coogan, PF; Palmer, JR; Rosenberg, L; Kelsey, J; Paffenbarger, R; Whittemore, A; Katsouyanni, K; Trichopoulou, A; Trichopoulos, D; Tzonou, A; Dabancens, A; Martinez, L; Molina, R; Salas, O; Goodman, MT; Lurie, G; Carney, ME; Wilkens, LR; Hartman, L; Manjer, J; Olsson, H; Grisso, JA; Morgan, M; Wheeler, JE; Bunker, CH; Edwards, RP; Modugno, F; Casagrande, J; Pike, MC; Ross, RK; Wu, AH; Miller, AB; Kumle, Merethe; Gram, Inger Torhild; Lund, Eiliv; McGowan, L; Shu, XO; Zheng, W; Farley, TMM; Holck, S; Meirik, O; Risch, HA (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Smoking has been linked to mucinous ovarian cancer, but its effects on other ovarian cancer subtypes and on overall ovarian cancer risk are unclear, and the findings from most studies with relevant data are unpublished. To assess these associations, we review the published and unpublished evidence. Eligible epidemiological studies were identified by electronic searches, review articles, and discussions ...
    • Derecruitment Test and Surfactant Therapy in Patients with Acute Lung Injury. 

      Smetkin, Alexey Anatolievich; Kuzkov, Vsevolod; Gaidukov, Konstantin M; Bjertnæs, Lars J.; Kirov, Mikhail (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      A recruitment maneuver (RM) may improve gas exchange in acute lung injury (ALI). The aim of our study was to assess the predictive value of a derecruitment test in relation to RM and to evaluate the efficacy of RM combined with surfactant instillation in patients with ALI. Materials and Methods. Thirteen adult mechanically ventilated patients with ALI were enrolled into a prospective pilot study. ...