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Sökning: WFRF:(Krogh Rasmussen Åse)

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1.
  • Bengtsson, D., et al. (författare)
  • Long-Term Outcome and MGMT as a Predictive Marker in 24 Patients With Atypical Pituitary Adenomas and Pituitary Carcinomas Given Treatment With Temozolomide
  • 2015
  • Ingår i: Journal of Clinical Endocrinology & Metabolism. - : Oxford University Press. - 0021-972X .- 1945-7197. ; 100:4, s. 1689-1698
  • Tidskriftsartikel (refereegranskat)abstract
    • Context/Objective: Locally aggressive pituitary tumors (LAPT) and pituitary carcinomas respond poorly to conventional therapy and cytotoxic drugs. Temozolomide (TMZ) is an oral alkylating drug with good tolerability, approved for treatment of malignant gliomas. The experience of its use in pituitary tumors is limited. Design and Setting: We report on 24 patients with aggressive pituitary tumors (16 LAPTs, 8 carcinomas) treated with TMZ for a median of 6 months (range 1-23). Follow-up ranged from 4 to 91 months with a median of 32.5 months. 19/24 tumors were hormone secreting (PRL 9, ACTH 4, GH 4, GH/PRL 2). Ki-67 was 2-50% in LAPTs, and 5-80% in carcinomas. Main Outcome: Response to TMZ and the association with tumor expression of O6-methylguanine DNA methyltransferase (MGMT), MLH1, MSH2, and MSH6, examined by immunohistochemistry. Results: Complete tumor regression occurred in two carcinomas and persisted at follow-up after 48 and 91 months, respectively. Partial regress of tumor mass ranging from 35% to 80% occurred in 5 LAPTs and 2 carcinomas. Another patient with LAPT had a 71% decrease in prolactin levels without change in tumor volume. Three LAPTs could not be evaluated. Median MGMT staining was 9% (5-20%) in responders vs 93% (50-100%) in nonresponders. Loss of MSH2 and MSH 6 was observed in a single patient who had a rapid development of resistance to TMZ. Conclusions: This study shows that TMZ is a valuable treatment option for patients with uncontrolled pituitary tumors. The data suggest that tumoral MGMT staining below 50% is associated with a high likelihood of treatment response.
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2.
  • Toogood, Andy, et al. (författare)
  • Similar Clinical Features Among Patients With Severe Adult Growth Hormone Deficiency Diagnosed With Insulin Tolerance Test Or Arginine Or Glucagon Stimulation Tests
  • 2012
  • Ingår i: ; 18:3, s. 325-334
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: To determine whether the ITT, arginine (AST) and glucagon stimulation tests (GST) identify patients who have similar features of GH deficiency using a diagnostic threshold of 3 μg/l.Patients and Methods: 5453 tests were available from 4,867 patients registered in the KIMS database (49.9% females, ITT = 3111, AST = 1390, GST = 952). Comparisons were made for GH peak, BMI, lipids, waist circumference, waist:hip ratio and quality of life (QoL-AGHDA questionnaire).Results.There were significant (p<0.0001) intra-individual correlations between the GH peaks for the ITT vs AST (r = 0.655), ITT vs GST (r = 0.445) and AST vs GST (r = 0.632). GH peaks in response to all tests were negatively correlated to the number of additional pituitary hormone deficiencies, and positively correlated to IGF-I SDS. BMI had a negative influence on all three tests.Comparing GHD patients according to the diagnostic test used, most clinical variables did not differ between the groups. The only exceptions showing any difference were BMI being slightly higher in the AST and GST groups, triglyceride levels increased in the GST group, and IGF-I SDS was lower in the ITT and AST than in the GST group. Waist circumference was larger and quality of life was worse in the GST group than in the other groups.Conclusions.This study demonstrates that the ITT, AST and GST produce similar GH peaks, are influenced by similar clinical factors and identify patients with similar features of GH deficiency at a diagnostic threshold of 3 μg/L.
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