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Sökning: WFRF:(Andersson Sonia)

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  • Dillner, Lena, et al. (författare)
  • Randomized healthservices study of human papillomavirus-based management of low-grade cytological abnormalities.
  • 2011
  • Ingår i: International Journal of Cancer. - : John Wiley and Sons Inc.. - 0020-7136. ; 129:1, s. 151-159
  • Tidskriftsartikel (refereegranskat)abstract
    • Human Papillomavirus (HPV)-based management of women with borderline (ASCUS) or mildly abnormal (CINI) cervical cytology has been extensively studied in the research setting. We wished to assess safety and healthcare resource use of a real-life healthcare policy using HPV triaging.All 15 outpatient clinics involved in the organized population-based screening program in Stockholm, Sweden screening program were randomized to either continue with prior policy (colposcopy of all women with ASCUS/CINI) or to implement a policy with HPV triaging and colposcopy only of HPV-positive women. The trial enrolled the 3319 women that were diagnosed with ASCUS (n=1335) or CINI (n=1984) in Stockholm during 17(th) March 2003 to 16(th) January 2006. Detection of high-grade cervical lesions (CINII+) and health care cost consumption was studied by registry linkages.The proportion of histopathology-verified CINII+ was similar for the 2 policies (395/1752 women (22.5%; 95% Confidence interval (CI): 20,6-24,6%) had CINII+ diagnosed with HPV triaging policy, 318/1567 women (20.3%; 95%CI: 18,3-22,4%)) had CINII+ with colposcopy policy). 64% of women with ASCUS and 77% of women with CINI were HPV-positive. HPV-positivity was age-dependent, with 81% of women below 35 years of age and 44% of women above 45 years of age testing HPV-positive. HPV triaging was cost-effective only above 35 years of age.In conclusion, a real-life randomised healthservices study of HPV triaging of women with ASCUS/CINI demonstrated similar detection of CINII+ as colposcopy of all women.
  • Molander, Peter, et al. (författare)
  • Internet-based acceptance and commitment therapy for psychological distress experienced by people with hearing problems: a pilot randomized controlled trial
  • 2018
  • Ingår i: Cognitive Behaviour Therapy. - : Routledge. - 1650-6073 .- 1651-2316. ; 47, s. 169-184
  • Tidskriftsartikel (refereegranskat)abstract
    • © 2017 Swedish Association for Behaviour Therapy. Psychological distress is common among people with hearing problems, but treatments that specifically target this aspect have been almost non-existent. In this pilot randomized controlled trial, an eight-week long Internet-based treatment, informed by Acceptance and Commitment Therapy, was administered to explore the feasibility and efficacy of such a treatment. Included participants were randomized to either treatment (n = 31) or wait-list control (n = 30) condition. All participants were measured prior to randomization and immediately after treatment ended using standardized self-report instruments measuring hearing-related emotional and social adjustment (Hearing Handicap Inventory for the Elderly–S, HHIE-S), quality of life (Quality of Life Inventory, QOLI), and symptoms of depression and anxiety (Patient health Questionnaire, PHQ-9 and Generalized Anxiety Disorder scale, GAD-7). Linear mixed effects regression analysis using the full intention-to-treat sample demonstrated that the treatment had superior outcomes on the main outcome measure as compared with the control group, Cohen’s d = 0.93, 95% CI [0.24, 1.63]. The benefits of treatment over control were also evident in scores of depression, Cohen’s d = 0.61, 95% CI [0.04, 1.19], and quality of life, Cohen’s d = 0.88, 95% CI [0.14, 1.61]. The results provide preliminary support for Internet-delivered acceptance and commitment therapy as a potentially effective treatment of psychological symptoms associated with hearing problems.
  • Andersson, Agneta, et al. (författare)
  • Influence of allochthonous dissolved organic matter on pelagic basal production in a northerly estuary
  • 2018
  • Ingår i: Estuarine, Coastal and Shelf Science. - : Elsevier. - 0272-7714 .- 1096-0015. ; 204, s. 225-235
  • Tidskriftsartikel (refereegranskat)abstract
    • Phytoplankton and heterotrophic bacteria are key groups at the base of aquatic food webs. In estuaries receiving riverine water with a high content of coloured allochthonous dissolved organic matter (ADOM), phytoplankton primary production may be reduced, while bacterial production is favoured. We tested this hypothesis by performing a field study in a northerly estuary receiving nutrient-poor, ADOM-rich riverine water, and analyzing results using multivariate statistics. Throughout the productive season, and especially during the spring river flush, the production and growth rate of heterotrophic bacteria were stimulated by the riverine inflow of dissolved organic carbon (DOC). In contrast, primary production and photosynthetic efficiency (i.e. phytoplankton growth rate) were negatively affected by DOC. Primary production related positively to phosphorus, which is the limiting nutrient in the area. In the upper estuary where DOC concentrations were the highest, the heterotrophic bacterial production constituted almost 100% of the basal production (sum of primary and bacterial production) during spring, while during summer the primary and bacterial production were approximately equal. Our study shows that riverine DOC had a strong negative influence on coastal phytoplankton production, likely due to light attenuation. On the other hand DOC showed a positive influence on bacterial production since it represents a supplementary food source. Thus, in boreal regions where climate change will cause increased river inflow to coastal waters, the balance between phytoplankton and bacterial production is likely to be changed, favouring bacteria. The pelagic food web structure and overall productivity will in turn be altered.
  • Andersson, Sonia, et al. (författare)
  • Acceptance of Self-Sampling Among Long-Term Cervical Screening Non-Attenders with HPV-Positive Results : Promising Opportunity for Specific Cancer Education
  • 2019
  • Ingår i: Journal of Cancer Education. - : Springer. - 0885-8195 .- 1543-0154.
  • Tidskriftsartikel (refereegranskat)abstract
    • This study aims to investigate acceptance of vaginal self-sampling for high-risk human papilloma virus (HPV) among long-term screening non-attenders at increased cervical cancer risk and to identify leverage points to promote screening adherence among these women. Forty-three long-term screening non-attenders performed home vaginal self-sampling for HPV, had positive HPV results, and subsequently attended gynecologic examination. Sixteen (37.2%) had high-grade cervical intraepithelial neoplasia (CIN2 or 3), and two had invasive cervical cancer. Forty-one of these women completed a questionnaire concerning Specific Knowledge about HPV, CIN, and cervical cancer, potential barriers to screening and views about self-sampling. Results were compared with 479 women treated for CIN2+ who attended gynecologic follow-up and also performed self-sampling. Significant multivariate predictors of long-term non-attender status compared with referents were low Specific Knowledge, high confidence in self-sampling, and potential barriers-refraining from activity to attend gynecologic examination, needing another's help to attend, and long travel time. Non-attenders citing fear/refraining from gynecologic examination as why they preferred self-sampling significantly more often had lowest Specific Knowledge compared with other non-attenders. All non-attenders could envision themselves doing self-sampling again while only 74% of referents endorsed this statement (p = 0.0003). We conclude that HPV self-sampling is an acceptable option for women at increased cervical cancer risk who have been long-term screening non-attenders. Educational outreach to enhance Specific Knowledge about HPV, CIN and cervical cancer is critical. Those non-attenders who explicitly avoid gynecologic examinations need special attention. Trial Registry: Clinicaltrials.gov NCT02750124.
  • Andersson, Sonia, et al. (författare)
  • Results of cytology and high-risk human papillomavirus testing in females with cervical adenocarcinoma in situ
  • 2013
  • Ingår i: Oncology Letters. - 1792-1074 .- 1792-1082. ; 6:1, s. 215-219
  • Tidskriftsartikel (refereegranskat)abstract
    • The incidence rates of cervical adenocarcinoma have been increasing over the last two decades, contrary to those of squamous cell carcinoma. This trend is particularly evident among females aged <40 years and has occurred despite extensive cytology-based screening programs. The aim of the present retrospective database study was to investigate adenocarcinoma in situ (AIS) with respect to previous cytological results, high-risk (HR) human papillomavirus (HPV) infections and histological results from AIS-adjacent squamous mucosa. Databases were used to identify 32 female patients with AIS treated for various conditions between 2009 and 2012 at the Department of Gynecology, Uppsala University Hospital (Uppsala, Sweden) and previous cytological, HPV and histological results. Of the individuals in the study, 64.3% had a previously recorded cytological result showing squamous cell abnormalities; five had glandular cell abnormalities (18%) and two had AIS (7.1%). Among the patients with available HPV results, 95% were HR-HPV-positive; HPV18/45 predominated (77%), followed by HPV16 (27%). The patients with multiple HPV infections were aged <= 32 years, while patients aged >= 38 years were only infected with HPV18/45. All but three patients had cervical intraepithelial neoplasia (CIN) in the AIS-adjacent squamous mucosa, 79% of which was CIN2 or worse. The present retrospective database study suggests that AIS is detected at screening mainly due to simultaneous squamous precursor lesions and that HPV18/45 infection is an increasing co-factor for AIS in older patients. HPV analyses of glandular precursor lesions aid in the identification of female individuals at risk of progression to invasive disease, and thus have a favorable effect on adenocarcinoma prevention, together with vaccination.
  • Cui, Baoxia, et al. (författare)
  • Mutation of PIK3CA : possible risk factor for cervical carcinogenesis in older women
  • 2009
  • Ingår i: International Journal of Oncology. - 1019-6439. ; 34:2, s. 409-416
  • Tidskriftsartikel (refereegranskat)abstract
    • PIK3CA encodes the p110alpha catalytic subunit of PI 3-kinase, which regulates signaling pathways important for neoplasia, cell proliferation and apoptosis. Somatic mutations in this gene have been detected in several solid human tumors. We investigated these mutations in cervical carcinoma and its precursors, and their association with HPV infection and patient clinical data. The mutations were analyzed using post-PCR direct genomic DNA sequencing. Samples included 9 cervical cancer cell lines, 184 invasive cervical carcinomas, and 30 cervical neoplasias. Missense mutations of PIK3CA were identified in 15/184 (8.15%) invasive cervical carcinomas. One novel mutation G1638C (Q546H) was found. Three mutations were identified in the cervical cancer lines. No mutations were found in the precursors. The difference in mutation frequency between invasive and pre-invasive lesions was not significant (p=0.1372). In relation to age and HPV, the mutation rate was significantly higher in patients>or=60 years (p=0.001), while the rate of HPV infection was higher in patients
  • Dahlström, Lisen Arnheim, et al. (författare)
  • Prospective study of human papillomavirus and risk of cervical adenocarcinoma.
  • 2010
  • Ingår i: International journal of cancer. Journal international du cancer. - : John Wiley and Sons Inc.. - 1097-0215 .- 0020-7136. ; 127:8, s. 1923-1930
  • Tidskriftsartikel (refereegranskat)abstract
    • Human papillomaviruses (HPV) are established as a major cause of cervical carcinoma. However, causality inference is dependent on prospective evidence showing that exposure predicts risk for future disease. Such evidence is available for squamous cell carcinoma, but not for cervical adenocarcinoma. We followed a population-based cohort of 994,120 women who participated in cytological screening in Sweden for a median of 6.7 years. Baseline smears from women who developed adenocarcinoma during follow-up (118 women with in situ disease and 164 with invasive disease) and their individually matched controls (1,434 smears) were analyzed for HPV using PCR. Conditional logistic regression was used to estimate odds ratios (OR) of future adenocarcinoma with 95% confidence intervals (CI). Being positive for HPV 16 in the first cytologically normal smear was associated with increased risks for both future adenocarcinoma in situ (OR: 11.0, 95% CI: 2.6-46.8) and invasive adenocarcinoma (OR: 16.0, 95% CI: 3.8-66.7), compared to being negative for HPV 16. Similarly, an HPV 18 positive smear was associated with increased risks for adenocarcinoma in situ (OR: 26.0, 95% CI: 3.5-192) and invasive adenocarcinoma (OR: 28.0, 95% CI: 3.8-206), compared to an HPV 18 negative smear. Being positive for HPV 16/18 in 2 subsequent smears was associated with an infinite risk of both in situ and invasive adenocarcinoma. In conclusion, infections with HPV 16 and 18 are detectable up to at least 14 years before diagnosis of cervical adenocarcinoma. Our data provide prospective evidence that the association of HPV 16/18 with cervical adenocarcinoma is strong and causal.
  • Hellman, Kristina, et al. (författare)
  • Differential tissue-specific protein markers of vaginal carcinoma
  • 2009
  • Ingår i: British Journal of Cancer. - : Cancer Research UK. - 0007-0920 .- 1532-1827. ; 100:8, s. 1303-1314
  • Forskningsöversikt (refereegranskat)abstract
    • The objective was to identify proteins differentially expressed in vaginal cancer to elucidate relevant cancer-related proteins. A total of 16 fresh-frozen tissue biopsies, consisting of 5 biopsies from normal vaginal epithelium, 6 from primary vaginal carcinomas and 5 from primary cervical carcinomas, were analysed using two-dimensional gel electrophoresis (2-DE) and MALDI-TOF mass spectrometry. Of the 43 proteins identified with significant alterations in protein expression between non-tumourous and tumourous tissue, 26 were upregulated and 17 were downregulated. Some were similarly altered in vaginal and cervical carcinoma, including cytoskeletal proteins, tumour suppressor proteins, oncoproteins implicated in apoptosis and proteins in the ubiquitin-proteasome pathway. Three proteins were uniquely altered in vaginal carcinoma (DDX48, erbB3-binding protein and biliverdin reductase) and five in cervical carcinoma (peroxiredoxin 2, annexin A2, sarcomeric tropomyosin kappa, human ribonuclease inhibitor and prolyl-4-hydrolase beta). The identified proteins imply involvement of multiple different cellular pathways in the carcinogenesis of vaginal carcinoma. Similar protein alterations were found between vaginal and cervical carcinoma suggesting common tumourigenesis. However, the expression level of some of these proteins markedly differs among the three tissue specimens indicating that they might be useful molecular markers.
  • Molander, Peter, et al. (författare)
  • Internet-based acceptance and commitment therapy for psychological distress experienced by people with hearing problems: Study protocol for a randomized controlled trial
  • 2015
  • Ingår i: American Journal of Audiology. - : American Speech-Language-Hearing Association. - 1059-0889 .- 1558-9137. ; 24, s. 307-310
  • Tidskriftsartikel (refereegranskat)abstract
    • © 2015 American Speech-Language-Hearing Association. Purpose: Psychological distress and psychiatric symptoms are prevalent among people with hearing loss or other audiological conditions, but psychological interventions for these groups are rare. This article describes the study protocol for a randomized controlled trial for evaluating the effect of a psychological treatment delivered over the Internet for individuals with hearing problems and concurrent psychological distress. Method: Participants who are significantly distressed will be randomized to either an 8-week Internet-delivered acceptance-based cognitive behavioral therapy (i.e., acceptance and commitment therapy [ACT]), or wait-list control. We aim to include measures of distress associated with hearing difficulties, anxiety, and depression. In addition, we aim to measure acceptance associated with hearing difficulties as well as quality of life. Conclusion: The results of the trial may further our understanding of how to best treat people who present problems with both psychological distress and hearing in using the Internet.
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