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- Lindström, Sara, et al.
(författare)
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Comprehensive genetic evaluation of common E-cadherin sequence variants and prostate cancer risk : strong confirmation of functional promoter SNP
- 2005
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Ingår i: Human Genetics. - Umea Univ, Dept Radiat Sci, S-90187 Umea, Sweden. Karolinska Inst, Dept Med Epidemiol & Biostat, Stockholm, Sweden. Karolinska Inst, Ctr Genom & Bioinformat, Stockholm, Sweden. Univ Leicester, Dept Genet, Leicester LE1 7RH, Leics, England. Wake Forest Univ, Sch Med, Ctr Human Genom, Winston Salem, NC USA. Johns Hopkins Med Inst, Dept Urol, Baltimore, MD USA. CLINTECH, Karolinska Inst, Ctr Oncol, Stockholm, Sweden. : SPRINGER. - 0340-6717 .- 1432-1203. ; 118:3-4, s. 339-347
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Tidskriftsartikel (refereegranskat)abstract
- The E-cadherin gene (CDH1) has been proposed as a prostate cancer (PC) susceptibility gene in several studies. Aberrant protein expression has been related to prognosis and progression in PC. In addition, a functional promoter SNP (rsl6260) has been found to associate with PC risk. We performed a comprehensive genetic analysis of CDH1 by using the method of haplotype tagged SNPs in a large Swedish population-based case-control study consisting of 801 controls and 1,636 cases. In addition, Swedish PC families comprising a total of 157 cases sampled for DNA were analyzed for selected SNPs. Seven SNPs, including the promoter SNP rsl6260, that captured over 96% of CDH1 haplotype variation were selected as haplotype tagging SNPs and analyzed for associated PC risk. We observed significant confirmation of rsl6260 (P=0.003) for cases with a positive family history of PC (FH+) both in an independent case-control population and in PC families. In addition, a common haplotype (HapB, 25%) including the variant allele of rsl6260 was associated (P=0.004) with PC risk among FH+ cases. The promoter SNP rsl6260 as well as HapB were significantly transmitted to affected offspring in PC families. We report strong confirmation of the association between PC risk in FH+ cases and a functional CDH1 promoter SNP in an independent population. In conjunction with the biological importance of CDH1 our findings encourage further evaluation of genetic variation in CDH1 in relation to PC etiology. Due to the difficulties in replication of genetic association studies. this finding is unusual and novel.
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- Adolfsson, L. E., et al.
(författare)
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Short-term safety and tolerability of double-dose salmeterol/fluticasone propionate in adult asthmatic patients
- 2005
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Ingår i: Clin Drug Investig. - 1173-2563. ; 25:4, s. 231-41
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Tidskriftsartikel (refereegranskat)abstract
- INTRODUCTION: The incidence of asthma exacerbations in patients receiving salmeterol/fluticasone propionate (Seretidetrade mark or Advair((R))) is low. However, when asthma control deteriorates, clinicians may instruct patients to double the dose of their inhaled corticosteroid medication for a short period. The purpose of this study was to demonstrate that doubling the dose of Seretidetrade mark for a period of 2 weeks in subjects with persistent asthma is safe and well tolerated. METHODS: This randomised, double-blind, parallel-group study was conducted in primary-care centres. Adults with a post-bronchodilator forced expiratory volume in 1 second (FEV(1)) of >/=70% predicted were stratified to receive a single dose of Seretidetrade mark 50mug/100mug, 50mug/250mug or 50mug/500mug twice daily from a Diskustrade mark inhaler for a 4-week run-in period, dependent on the dose of inhaled corticosteroid on entry. Subjects were then randomised to receive either an extra inhalation of the same dose of Seretidetrade mark received during the run-in (double dose) or an inhalation of matching placebo (single dose) for 14 days in a 2 : 1 ratio. Subjects were asked to record any adverse events, morning and evening heart rate (HR), peak flow and relief medication use in daily record cards. The primary endpoint was tremor as perceived by the subject. Clinic evaluations included HR, 12-lead ECG, and potassium and glucose levels. RESULTS: 110 and 208 subjects received single- and double-dose Seretidetrade mark, respectively. Only one subject experienced tremor. This was classified as mild and occurred in a subject receiving double-dose Seretidetrade mark (50mug/100mug). There was no difference between the treatment groups in the incidence of tremor (difference <1%; 95% CI -6, 8). Other salmeterol-related adverse events (palpitations, muscle cramps and headache) and fluticasone propionate-related events (oral candidiasis and hoarseness) occurred in a similar percentage of subjects in each treatment group. The treatment differences for morning and evening HR measurements showed small differences between the two groups (<2 beats/min). The adjusted mean treatment difference (double dose - single dose) in morning HR was 1.1 beats/min (95% CI 0.2, 2.0) and evening HR was 0.9 beats/min (95% CI 0.1, 1.7). Seven percent of subjects receiving single-dose Seretidetrade mark and 8% receiving double-dose Seretidetrade mark had a QTc change from baseline in the interval 30-59 msec. No increases above 59 msec were seen in either group. There were no clinically significant changes from baseline for potassium levels. Two percent of subjects in the single dose and <1% in the double-dose group had a change from a non-clinically significant baseline blood glucose assessment to a clinically significant abnormality at the end of treatment. CONCLUSION: In circumstances in which a physician may be considering doubling the dose of Seretidetrade mark for a short period of time in adult asthmatics, this study demonstrates that doubling the dose for a period of 2 weeks is safe and well tolerated.
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- Al-Abany, M., et al.
(författare)
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Reliability of assessment of urgency and other symptoms indicating anal sphincter, large bowel or urinary dysfunction
- 2006
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Ingår i: Scand J Urol Nephrol. - 0036-5599. ; 40:5, s. 397-408
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: The Radiumhemmets Scale of Disease-Specific Symptom Assessment-Prostate Cancer has been used in several studies. However, no test-retest reliability study of it has been conducted concerning the assessment of urinary, anal sphincter or large bowel function. The aim of this study was to evaluate the reliability of items assessing these functions. MATERIAL AND METHODS: We investigated 89 prostate cancer patients randomly selected from a group of patients diagnosed in Stockholm. The patients answered 24 questions assessing anal sphincter, large bowel and urinary function twice, with a 3-week interval in-between, to assess reliability. RESULTS: Most of the questions assessing bowel and urinary symptoms showed substantial or near-perfect agreement. The kappa value for bowel symptom items was > or = 0.60 for all items, except for defecation urgency (0.40-0.55). The kappa value for urinary symptom items varied between 0.43 and 1.0, except for urinary urgency (0.30-0.39). CONCLUSIONS: When comparing the impact of different symptoms of anal sphincter, large bowel or urinary tract dysfunction, it may be important to consider that defecation urgency and urinary urgency have the highest measuring error (low reliability). This error dilutes assessed associations with, for example, decreased quality of life. Nevertheless, the test-retest reliability for anal sphincter, large bowel and urinary symptoms indicates that surveys yield meaningful information.
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