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1.
  • Bonnert, M., et al. (författare)
  • Internet-Delivered Cognitive Behavior Therapy for Adolescents With Irritable Bowel Syndrome: A Randomized Controlled Trial
  • 2017
  • Ingår i: Am J Gastroenterol. - Stockholm : Karolinska Institutet, Departement for clinical neuroscience. - 0002-9270. ; 112:1, s. 152-162
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVES: Few treatments have been able to effectively manage pediatric irritable bowel syndrome (IBS). Internet-delivered cognitive behavior therapy (Internet-CBT) based on exposure for abdominal symptoms is effective for adult IBS. The objective of this study was to evaluate the efficacy of Internet-CBT based on behavioral exposure for adolescents with IBS. METHODS: Adolescents with IBS fulfilling the Rome III criteria were randomized to either Internet-CBT or a wait-list control. The Internet-CBT was a 10-week intervention where the main component was exposure to IBS symptoms by reduction of avoidance of abdominal symptoms and instead stepwise provocation of symptoms. The primary outcome was total score on Gastrointestinal Symptoms Rating Scale for IBS (GSRS-IBS). Secondary outcomes included adolescent- and parent-rated quality of life and parent-rated gastrointestinal symptoms. Difference between groups was assessed from pretreatment to posttreatment and the Internet-CBT group was also evaluated at 6 months after treatment completion. RESULTS: A total of 101 adolescents with IBS (13-17 years of age) were included in this study. Dropout rates were low (6%) and all randomized patients were included in intent-to-treat analyses based on mixed effects models. Analyses showed a significant larger pretreatment to posttreatment change on the primary outcome GSRS-IBS (B=-6.42, P=0.006, effect size Cohen's d=0.45, 95% confidence interval (0.12, 0.77)) and on almost all secondary outcomes for the Internet-CBT group compared with the control group. After 6 months, the results were stable or significantly improved. CONCLUSIONS: Internet-CBT based on exposure exercises for adolescents with IBS can effectively improve gastrointestinal symptoms and quality of life.
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  • Hallan, Andreas, et al. (författare)
  • Risk factors on the development of new-onset gastroesophageal reflux symptoms. A population-based prospective cohort study: the HUNT study
  • 2015
  • Ingår i: American Journal of Gastroenterology. - Stockholm : Karolinska Institutet, Dept of Molecular Medicine and Surgery. - 0002-9270. ; 110:3, s. 393-400
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVES: Gastroesophageal reflux disease (GERD) is a highly prevalent disorder. This study assessed the risk factors of new-onset gastroesophageal reflux symptoms (GERS). METHODS: The study was based on the HUNT study, a prospective population-based cohort study conducted in 1995-1997 and 2006-2009 in Nord-Trondelag County, Norway. All inhabitants from 20 years of age were invited. Risk factors of new-onset heartburn or acid regurgitation were examined using logistic regression, providing odds ratios (OR) and 95% confidence intervals (CI). RESULTS: A total of 29,610 individuals were included (61% response rate). Participants reporting no GERS at baseline and severe GERS at follow-up (new-onset GERS; n=510) were compared with participants reporting no complaints at both times (n=14,406). Increasing age (OR 1.01 per year, 95% CI 1.00-1.02) was positively associated, whereas male sex (OR 0.81, 95% CI 0.66-0.98) and higher education (OR 0.69, 95% CI 0.56-0.86) were negatively associated with new-onset GERS. Gain in body mass index (BMI) was dose-dependently associated with new-onset GERS (OR 1.30 per unit increase in BMI, 95% CI 1.25-1.35), irrespective of baseline BMI. Previous and current tobacco smoking were associated with new-onset GERS (OR 1.37, 95% CI 1.07-1.76 and OR 1.29, 95% CI 1.00-1.67, respectively). Tobacco smoking cessation was associated with new-onset GERS among those with gain in BMI upon quitting (OR 2.03, 95% CI 1.31-3.16, with >3.5 BMI units increase). CONCLUSIONS: New-onset GERS were associated with increasing age, female sex, lower education, gain in BMI, and ever tobacco smoking. Tobacco smoking cessation was associated with new-onset GERS among those who gained weight upon quitting.
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3.
  • Wang, Qiao-Li, et al. (författare)
  • Association between metformin use and risk of esophageal squamous cell carcinoma in a population-based cohort study
  • 2020
  • Ingår i: American Journal of Gastroenterology. - Stockholm : Karolinska Institutet, Dept of Molecular Medicine and Surgery. - 0002-9270. ; 115:1, s. 73-78
  • Tidskriftsartikel (refereegranskat)abstract
    • Objectives: Esophageal cancer is a highly fatal malignant neoplasm, with two etiologically different histological types. A large prospective study is expected to elucidate the specific risk of the 90% subtype of esophageal cancer, esophageal squamous cell carcinoma, with metformin therapy. This study aims to determine the association between metformin use and incident esophageal squamous cell carcinoma risk. Methods: This was a nationwide population-based prospective cohort study conducted in Sweden in 2005-2015. Among 8.4 million participants identified in the cohort, 411,603 (5%) were metformin users. The users were compared with 10 times as many frequency-matched non-users of metformin (n=4,116,030) by age and sex. Metformin use was treated as a time-varying variate and multivariable cause-specific proportional hazards model was used to calculate hazard ratios (HR) with 95% confidence intervals (CI) for esophageal squamous cell carcinoma, adjusted for age, sex, calendar year, residence area, tobacco smoking, alcohol overconsumption, and use of non-steroidal anti-inflammatory drugs or statins. Results: The incidence rates of esophageal squamous cell carcinoma were 3.5 per 100,000 person-years among the metformin users and 5.3 per 100,000 person-years in the non-users. Metformin users overall were at a decreased risk of esophageal squamous cell carcinoma compared with non-users (HR 0.68, 95% CI 0.54-0.85). The decrease in risk was more pronounced in new metformin users (HR 0.44, 95% CI 0.28-0.64) and participants aged 60-69 years (HR 0.45, 95% CI 0.31-0.66). Conclusions: Metformin use decreases the risk of developing esophageal squamous cell carcinoma.
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6.
  • Zhang, Hong, 1957-, et al. (författare)
  • Overexpression of cyclooxygenase-2 correlates with advanced stages of colorectal cancer
  • 2002
  • Ingår i: American Journal of Gastroenterology. - 0002-9270 .- 1572-0241. ; 97:4, s. 1037-1041
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: We aimed to investigate the associations of cyclooxygenase-2 (COX-2) with pathological features and survival in patients with colorectal cancer. METHODS: The expression of COX-2 was examined by immunohistochemistry in 112 primary colorectal cancers, with 64 samples from the corresponding normal mucosa and 16 metastases in the regional lymph nodes of patients with colorectal cancer. The associations of COX-2 expression with clinico-pathological features, including survival, were analyzed. RESULTS: The frequency and intensity of COX-2 staining were remarkably increased from the normal samples (17%) to the primary tumors (72%) and to the metastases (100%). Expressions of COX-2 were 25%, 74%, 78%, and 67% in Dukes' A, B, C, and D tumors, respectively (p = 0.005), and positively related to proliferative activity (p = 0.003). COX-2 expressions were 80% in colonic tumors and 60% in rectal tumors (p = 0.03). The expression of COX-2 was positively related to the better differentiated tumors in the colon (p = 0.04). We were unable to find any relationship of COX-2 with patient age, sex, tumor growth pattern, apoptosis, and patient survival (p > 0.05). CONCLUSION: We found that the expression of COX-2 was upregulated from normal cells to primary tumors and to metastases, and related to proliferative activity, tumor location, Dukes' stage, and differentiation. These results further support the evidence that COX-2 may be involved in tumorigenesis and development of colorectal cancer. ⌐ 2002 by Am. Coll. of Gastroenterology.
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10.
  • Agreus, L (författare)
  • Rome? Manning? Who cares?
  • 2000
  • Ingår i: The American journal of gastroenterology. - 0002-9270. ; 95:10, s. 2679-2681
  • Tidskriftsartikel (övrigt vetenskapligt)
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