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- Eiermann, W, et al.
(författare)
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Triple negative breast cancer: Proposals for a pragmatic definition and implications for patient management and trial design.
- 2012
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Ingår i: Breast. - : Elsevier BV. - 1532-3080. ; 21:1, s. 20-6
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Tidskriftsartikel (refereegranskat)abstract
- In trials in triple negative breast cancer (TNBC), oestrogen and progesterone receptor negativity should be defined as<1% positive cells. Negativity is a ratio of <2 between Her2 gene copy number and centromere of chromosome 17 or a copy number of 4 or less. In routine practice, immunohistochemistry is acceptable given stringent quality assurance. Triple negativity emerging after neoadjuvant treatment differs from primary TN and such patients should not enter TNBC trials. Patients relapsing with TN metastases should be eligible even if their primary was positive. Rare TN subtypes such as apocrine, adenoid-cystic and low-grade metaplastic tumours should be excluded. TN and basal-like (BL) signatures overlap but are not equivalent. Since the significance of basal cytokeratin or EGFR overexpression is not known and we lack validated assays, these features should not be used to subclassify TN tumours. Tissue collection in trials is mandatory so the effect on outcome of different tumour phenotypes and BRCA mutation can be explored. No prospective studies have established that TN tumours have particular sensitivity or resistance to any specific chemotherapy agent or radiation. TNBC patients should be treated according to tumour and clinical characteristics.
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- Malfatti, Edoardo, et al.
(författare)
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A New Muscle Glycogen Storage Disease Associated with Glycogenin-1 Deficiency
- 2014
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Ingår i: Annals of Neurology. - : Wiley. - 0364-5134. ; 76:6, s. 891-898
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Tidskriftsartikel (refereegranskat)abstract
- We describe a slowly progressive myopathy in 7 unrelated adult patients with storage of polyglucosan in muscle fibers. Genetic investigation revealed homozygous or compound heterozygous deleterious variants in the glycogenin-1 gene (GYG1). Most patients showed depletion of glycogenin-1 in skeletal muscle, whereas 1 showed presence of glycogenin-1 lacking the C-terminal that normally binds glycogen synthase. Our results indicate that either depletion of glycogenin-1 or impaired interaction with glycogen synthase underlies this new form of glycogen storage disease that differs from a previously reported patient with GYG1 mutations who showed profound glycogen depletion in skeletal muscle and accumulation of glycogenin-1. Ann Neurol 2014;76:891-898
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- Wolters, Tineke, et al.
(författare)
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The effect of study arm on prostate cancer treatment in the large screening trial ERSPC.
- 2010
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Ingår i: International journal of cancer. Journal international du cancer. - : Wiley. - 1097-0215. ; 126:10, s. 2387-93
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Tidskriftsartikel (refereegranskat)abstract
- Prostate cancer (PC) mortality is the most valid end-point in screening trials, but could be influenced by the choice of initial treatment if treatment has an effect on mortality. In this study, PC treatment was compared between the screening and control arms in a screening trial. Data were collected from the European Randomized Study of Screening for Prostate Cancer (ERSPC). The characteristics and initial treatment of PC cases detected in the screening and the control arm were compared. Polytomous logistic regression analysis was used to assess the influence of study arm on treatment, adjusting for potential confounders and with statistical imputation of missing values. A total of 8,389 PC cases were detected, 5,422 in the screening arm and 3,145 in the control arm. Polytomous regression showed that trial arm was associated with treatment choice after correction for missing values, especially in men with high-risk PC. A control subject with high-risk PC was more likely than a screen subject to receive radiotherapy (OR: 1.43, 95% CI: 1.01-2.05, p = 0.047), expectant management (OR: 2.92, 95% CI: 1.33-6.42, p = 0.007) or hormonal treatment (OR: 1.77, 95% CI: 1.07-2.94, p = 0.026) instead of radical prostatectomy. However, trial arm had only a minor role in treatment choice compared to other variables. In conclusion, a small effect of trial arm on treatment choice was seen, particularly in men with high-risk PC. Therefore, differences in treatment between arms are unlikely to play a major role in the interpretation of the results of the ERSPC.
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