Eik Vettorazzi

Mr. Eik Vettorazzi

orcid

Research Focus & Metrics

Academic Career Length

19Years (2008-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 September 2018 in The Lancet
Verified
Journal Article
Closed access
FKFriedrich Koehler
Friedrich Koehler
KKKerstin Koehler
Kerstin Koehler
ODOliver Deckwart
Oliver Deckwart
SPSandra Prescher
Sandra Prescher
KWKarl Wegscheider
Karl Wegscheider
KSKarl Stangl
Karl Stangl

6 August 2016 in Viruses
Verified
Journal Article
Open access
PDF file
JHJohannes Hartl
Johannes Hartl
BOBenjamin Otto
Benjamin Otto
RMRichie Guy Madden
Richie Guy Madden
GWGlynn Webb
Glynn Webb
KWKathy Louise Woolson
Kathy Louise Woolson
Sven PischkeSven Pischke
Sven Pischke
There have been large numbers of studies on anti-HEV IgG seroprevalence in Europe, however, the results of these studies have produced high variability of seroprevalence rates, making interpretation increasingly problematic. Therefore, the aim of this study was to develop a clearer understanding of anti-HEV IgG seroprevalence in Europe and identify risk groups for HEV exposure by a meta-analysis of published studies. Methods: All European HEV-seroprevalence studies from 2003 to 2015 were reviewed. Data were stratified by assay, geographical location, and patient cohort (general population, patients with HIV, solid-organ transplant recipients, chronic liver disease patients, and individuals in contact with swine/wild animals). Data were pooled using a mixed-effects model. Results: Four hundred thirty-two studies were initially identified, of which 73 studies were included in the analysis. Seroprevalence estimates ranged from 0.6% to 52.5%, increased with age, but were unrelated to gender. General population seroprevalence varied depending on assays: Wantai (WT): 17%, Mikrogen (MG): 10%, MP-diagnostics (MP): 7%, DiaPro: 4%, Abbott 2%. The WT assay reported significantly higher seroprevalence rates across all cohorts (p < 0.001). Individuals in contact with swine/wild animals had significantly higher seroprevalence rates than the general population, irrespective of assay (p < 0.0001). There was no difference between any other cohorts. The highest seroprevalence was observed in France (WT: 32%, MP: 16%) the lowest in Italy (WT: 7.5%, MP 0.9%). Seroprevalence varied between and within countries. The observed heterogeneity was attributed to geographical region (23%), assay employed (23%) and study cohort (7%). Conclusion: Seroprevalcence rates primarily depend on the seroassy that is used, followed by the geographical region and study cohort. Seroprevalence is higher in individuals exposed to swine and/or wild animals, and increases with age.

31 July 2015 in BMC Cancer
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Journal Article
Open access
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ASAlexander Stein
Alexander Stein
DADirk Arnold
Dirk Arnold
JBJohn Bridgewater
John Bridgewater
DGDavid Goldstein
David Goldstein
LJLars Henrik Jensen
Lars Henrik Jensen
HWHenning Wege
Henning Wege
Despite complete resection, disease-free survival (DFS) of patients with cholangiocarcinoma (CCA) is less than 65 % after one year and not more than 35 % after three years. For muscle invasive gallbladder carcinoma (GBCA), prognosis is even worse, with an overall survival (OS) of only 30 % after three years. Thus, evaluation of adjuvant chemotherapy in biliary tract cancer in a large randomized trial is warranted. ACTICCA-1 is a randomized, multidisciplinary, multinational phase III investigator initiated trial. With respect to data obtained in the ABC-02 trial, we selected the combination of gemcitabine and cisplatin for 24 weeks as investigational treatment. Based on adjuvant trials in pancreatic cancer with comparable postoperative recovery time, inclusion of patients within a maximum interval of 16 weeks between surgery and start of chemotherapy was stipulated. Due to the different prognosis and treatment susceptibility of muscle invasive carcinoma, two separate cohorts (CCA and GBCA) were included to capture the potentially different treatment effects. Randomization is stratified for lymph node status for both cohorts and localization for CCA. The primary endpoint is DFS and secondary endpoints include OS, safety and tolerability of chemotherapy, quality of life, and patterns of disease recurrence. For CCA, adjuvant chemotherapy should increase DFS 24 months post-surgery from 40 to 55 % to be considered relevant. With a power of 80 % and a significance level of 5 %, 271 evaluable study patients have to be followed for 24–28 months to observe 166 events. For GBCA, chemotherapy should increase DFS 24 months post-surgery from 35 to 55 % to be of relevance; thus, 154 evaluable study patients have to be monitored for 24–28 months to observe 90 events. In both cohorts, randomization will be 1:1 with chemotherapy for 24 weeks and imaging every twelve weeks. In 2014, the study was initiated in Germany and in The Netherlands (funded by the Deutsche Krebshilfe, the Dutch Cancer Society, and supported by medac GmbH). Sites in Australia, Denmark, and the United Kingdom (funded by Cancer Research UK) are joining 2015. The study is registered with ClinicalTrials.gov ( NCT02170090 ) and the European Clinical Trials Database (2012-005078-70). Registration date is 06/18/2014.

24 October 2013 in Multiple Sclerosis Journal
Verified
Journal Article
Closed access
PDF file
SBS Briken
S Briken
SGSm Gold
Sm Gold
SPS Patra
S Patra
EVEik Vettorazzi
Eik Vettorazzi
DHD Harbs
D Harbs
CHC Heesen
C Heesen
Background: Exercise may have beneficial effects on both well-being and walking ability in multiple sclerosis (MS). Exercise is shown to be neuroprotective in rodents and may also enhance cognitive function in humans. It may, therefore, be particularly useful for MS patients with pronounced neurodegeneration. Objective: To investigate the potential of standardized exercise as a therapeutic intervention for progressive MS, in a randomized-controlled pilot trial. Methods: Patients with progressive MS and moderate disability (Expanded Disability Status Scale (EDSS) of 4–6) were randomized to one of three exercise interventions (arm ergometry, rowing, bicycle ergometry) for 8–10 weeks or a waitlist control group. We analyzed the drop-out rate as a measure of feasibility. The primary endpoint of the study was aerobic fitness. Secondary endpoints were walking ability, cognitive function as measured by a neuropsychological test battery, depression and fatigue. Results: A total of 42 patients completed the trial (10.6% drop-out rate). Significant improvements were seen in aerobic fitness. In addition, exercise improved walking ability, depressive symptoms, fatigue and several domains of cognitive function. Conclusion: This study indicated that aerobic training is feasible and could be beneficial for patients with progressive MS. Larger exercise studies are needed to confirm the effect on cognition. Trial Registration: ISRCTN (trial number 76467492) http://isrctn.org

10 July 2013 in Science Translational Medicine
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Journal Article
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BBBjörn Busse
Björn Busse
HBHrishikesh A. Bale
Hrishikesh A. Bale
EZElizabeth A. Zimmermann
Elizabeth A. Zimmermann
BPBrian Panganiban
Brian Panganiban
HBHolly D. Barth
Holly D. Barth
RRRobert O. Ritchie
Robert O. Ritchie
In addition to decreasing bone mass, vitamin D deficiency causes early aging of the remaining mineralized bone and leads to severe losses in fracture resistance.

12 June 2008 in International Journal of Cancer
Verified
Journal Article
Open access
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DFDieter Flesch‐Janys
Dieter Flesch‐Janys
TSTracy Slanger
Tracy Slanger
EMElke Mutschelknauss
Elke Mutschelknauss
SKSilke Kropp
Silke Kropp
NONadia Obi
Nadia Obi
JCJenny Chang‐Claude
Jenny Chang‐Claude
In a large population‐based case–control study in Germany, including 3,464 breast cancer cases aged 50–74 at diagnosis and 6,657 population based and frequency matched controls, we investigated the effects of menopausal hormone therapy (HT) by type, regimen, timing and progestagenic constituent on postmenopausal breast cancer risk overall and according to histological type. Data were collected by face‐to‐face interviews. Logistic and polytomous logistic regression analysis were used to estimate odds ratios (OR) and 95%‐confidence intervals (95% CI). Risk of invasive breast cancer was significantly elevated in current users (OR, 1.73, 95% CI, 1.55–1.94) and heterogeneous by histological type (p < 0.01), being more than 2‐fold higher for lobular and tubular than for ductal cancer. Risks for current users varied significantly by type and regimen of HT, with ORs per year of use of 1.05 (95% CI, 1.04–1.06) for continuous combined estrogen–progestagen, 1.03 (95% CI, 1.02–1.04) for cyclical EP and 1.01 (95% CI, 1.00–1.03) for estrogen‐only therapy. No statistically significant increase in risk was observed after 5 years of cessation of HT use for any histological type. Analyses of progestagenic content by regimen revealed a significantly higher risk for continuously administered norethisterone‐ or levonorgestrel‐derived progestagens than for continuously administered progesterone‐derived progestagens (OR, 2.27, 95% CI, 1.98–2.62 vs. 1.47, 95% CI, 1.12–1.93, respectively, p = 0.003), which may be explained by dose rather than type of progestagen. These data suggest that the risks associated with menopausal HT differ by type and regimen of HT and histological type of breast cancer and may vary by progestagenic component, depending on the effective dose.