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Pancreatic Neoplasms: HELP
Articles by Eugene H. J. M. Jansen
Based on 2 articles published since 2010
(Why 2 articles?)

Between 2010 and 2020, E. Jansen wrote the following 2 articles about Pancreatic Neoplasms.
+ Citations + Abstracts
1 Article Plasma carotenoids, vitamin C, retinol and tocopherols levels and pancreatic cancer risk within the European Prospective Investigation into Cancer and Nutrition: a nested case-control study: plasma micronutrients and pancreatic cancer risk. 2015

Jeurnink, Suzanne M / Ros, Martine M / Leenders, Max / van Duijnhoven, Franzel J B / Siersema, Peter D / Jansen, Eugene H J M / van Gils, Carla H / Bakker, Marije F / Overvad, Kim / Roswall, Nina / Tjønneland, Anne / Boutron-Ruault, Marie-Christine / Racine, Antoine / Cadeau, Claire / Grote, Verena / Kaaks, Rudolf / Aleksandrova, Krasimira / Boeing, Heiner / Trichopoulou, Antonia / Benetou, Vasiliki / Valanou, Elisavet / Palli, Domenico / Krogh, Vittorio / Vineis, Paolo / Tumino, Rosario / Mattiello, Amalia / Weiderpass, Elisabete / Skeie, Guri / Castaño, José María Huerta / Duell, Eric J / Barricarte, Aurelio / Molina-Montes, Esther / Argüelles, Marcial / Dorronsoro, Mire / Johansen, Dorthe / Lindkvist, Björn / Sund, Malin / Crowe, Francesca L / Khaw, Kay-Tee / Jenab, Mazda / Fedirko, Veronika / Riboli, E / Bueno-de-Mesquita, H B. ·Department of Gastroenterology and Hepatology, University Medical Center Utrecht, the Netherlands; National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands. ·Int J Cancer · Pubmed #25175624.

ABSTRACT: Evidence of a protective effect of several antioxidants and other nutrients on pancreatic cancer risk is inconsistent. The aim of this study was to investigate the association for prediagnostic plasma levels of carotenoids, vitamin C, retinol and tocopherols with risk of pancreatic cancer in a case-control study nested within the European Prospective Investigation into Cancer and Nutrition (EPIC). 446 incident exocrine pancreatic cancer cases were matched to 446 controls by age at blood collection, study center, sex, date and time of blood collection, fasting status and hormone use. Plasma carotenoids (α- and β-carotene, lycopene, β-cryptoxanthin, canthaxanthin, zeaxanthin and lutein), α- and γ-tocopherol and retinol were measured by reverse phase high-performance liquid chromatography and plasma vitamin C by a colorimetric assay. Incidence rate ratios (IRRs) with 95% confidence intervals (95%CIs) for pancreatic cancer risk were estimated using a conditional logistic regression analysis, adjusted for smoking status, smoking duration and intensity, waist circumference, cotinine levels and diabetes status. Inverse associations with pancreatic cancer risk were found for plasma β-carotene (IRR highest vs. lowest quartile 0.52, 95%CI 0.31-0.88, p for trend = 0.02), zeaxanthin (IRR highest vs. lowest quartile 0.53, 95%CI 0.30-0.94, p for trend = 0.06) and α-tocopherol (IRR highest vs. lowest quartile 0.62, 95%CI 0.39-0.99, p for trend = 0.08. For α- and β-carotene, lutein, sum of carotenoids and γ-tocopherol, heterogeneity between geographical regions was observed. In conclusion, our results show that higher plasma concentrations of β-carotene, zeaxanthin and α-tocopherol may be inversely associated with risk of pancreatic cancer, but further studies are warranted.

2 Article European proficiency study with control serum for the tumor marker CA 19-9 measured on different test systems. 2013

Bertsch, T / Aschenneller, C / Bewarder, N / Beyrau, R / Herrmann, B L / Jansen, E / Klapdor, R / Klemm, M / Meissner, J / Pfeiffer, S / Schauer, I / Stratmann, M M / Theimer, C / van de Loo, H M / Wildbredt, D A / Wolff, C / Wollenberg, P. ·Klinikum Nürnberg, Institut für Klinische Chemie, Labormedizin und Transfusionsmedizin, Nürnberg, Germany. thomas.bertsch@klinikum-nuernberg.de ·Clin Lab · Pubmed #23505925.

ABSTRACT: BACKGROUND: Reliable and precise CA 19-9 testing is required for the long-term follow-up of patients with pancreatic carcinoma during therapy. The aim of this longitudinal proficiency study was to evaluate the comparability, linearity, and precision of CA 19-9 determinations performed in different laboratories using currently available test systems under routine conditions. METHODS: During the one year study period, 15 laboratories applied 7 different tests and included a liquid BIOREF control serum with pancreatic carcinoma derived CA 19-9 in their routine testing and quality control procedures. The results were collected centrally and evaluated statistically. RESULTS: The comparability of CA 19-9 results is limited especially when different tests are used, albeit, some tests show a good correlation: The CA 19-9 values obtained by different laboratories using different test systems vary up to a factor of 2. The precision of CA 19-9 determinations was acceptable in most laboratories with coefficients of variation ranging between very low 3.2% and high 17.8%. The imprecision was slightly increased when automatic dilution procedures of the analysers were used. CONCLUSIONS: The comparability of CA 19-9 test results must be improved. The precision is acceptable in most cases. In order to monitor key performance parameters, every laboratory should participate in external quality assessment schemes and should perform a routine internal quality control with a control serum independent from the test kit manufacturer.