Claudia Mellenthin

Dr. Claudia Mellenthin

University of Fribourg, Fribourg, Switzerland
+2
orcid

Research Focus & Metrics

Academic Career Length

24Years (2003-Present)

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

Representative Publications

View All Publications
1 March 2003 in Journal of Hepatology
Verified
Journal Article
Closed access
AEAndreas Erhardt
Andreas Erhardt
AMAndrea Maschner-Olberg
Andrea Maschner-Olberg
Claudia MellenthinClaudia Mellenthin
Claudia Mellenthin
GKGünther Kappert
Günther Kappert
OAOrtwin Adams
Ortwin Adams
DHDieter Häussinger
Dieter Häussinger

26 September 2022 in Cancers
Verified
Journal Article
Open access
PDF file
Claudia MellenthinClaudia Mellenthin
Claudia Mellenthin
Daniel Vasile BalabanDaniel Vasile Balaban
Daniel Vasile Balaban
ADAna Dugic
Ana Dugic
SCStéphane Cullati
Stéphane Cullati
(1) Background: Patients with new-onset diabetes (NOD) are at risk of pancreatic ductal adenocarcinoma (PDAC), but the most relevant additional risk factors and clinical characteristics are not well established. (2) Objectives: To compare the risk for PDAC in NOD patients to persons without diabetes. Identify risk factors of PDAC among NOD patients. (3) Methods: Medline, Embase, and Google Scholar were last searched in June 2022 for observational studies on NOD patients and assessing risk factors for developing PDAC. Data were extracted, and Meta-Analysis was performed. Pooled effect sizes with 95% confidence intervals (CI) were estimated with DerSimonian & Laird random effects models. (4) Findings: Twenty-two studies were included, and 576,210 patients with NOD contributed to the analysis, of which 3560 had PDAC. PDAC cases were older than controls by 6.14 years (CI 3.64–8.65, 11 studies). The highest risk of PDAC involved a family history of PDAC (3.78, CI 2.03–7.05, 4 studies), pancreatitis (5.66, CI 2.75–11.66, 9 studies), cholecystitis (2.5, CI 1.4–4.45, 4 studies), weight loss (2.49, CI 1.47–4.22, 4 studies), and high/rapidly increasing glycemia (2.33, CI 1.85–2.95, 4 studies) leading to more insulin use (4.91, CI 1.62–14.86, 5 studies). Smoking (ES 1.20, CI 1.03–1.41, 9 studies) and alcohol (ES 1.23, CI 1.09–1.38, 9 studies) have a smaller effect. (5) Conclusion: Important risk factors for PDAC among NOD patients are age, family history, and gallstones/pancreatitis. Symptoms are weight loss and rapid increase in glycemia. The identified risk factors could be used to develop a diagnostic model to screen NOD patients.

17 June 2021 in PLOS ONE
Verified
Journal Article
Open access
PDF file
SPSarah Peisl
Sarah Peisl
Claudia MellenthinClaudia Mellenthin
Claudia Mellenthin
LVLucie Vignot
Lucie Vignot
CGCarmen Gonelle-Gispert
Carmen Gonelle-Gispert
LBLeo Bühler
Leo Bühler
BEBernhard Egger
Bernhard Egger
Background/Objectives: Pancreatic ductal adenocarcinoma is a highly lethal disease with increasing incidence. Due to high resistance, chemo/radiotherapy has limited success in pancreatic cancer and only marginally prolongs patient survival. Therefore, novel biomarkers and therapeutic targets are needed. In the present review, we performed a comprehensive summary of therapeutic approaches targeting the GP130/JAK/STAT3 pathway. Methods: We systematically reviewed the PubMed and Embase databases for preclinical and clinical studies, from inception to October 4, 2020, on drugs targeting the GP130/JAK/STAT3 pathway. Bias assessments and qualitative analyses were performed. Results: Twenty-five preclinical and nine clinical trials were included in the review. All preclinical studies reported a favorable outcome in terms of pancreatic ductal adenocarcinoma progression. Futhermore, drugs targeting the GP130/JAK/STAT3 pathway were shown to be efficient chemosensitizers. However, high publication bias was assumed. In the clinical setting, bazedoxifene and itacitinib improved patient outcomes. Conclusion: Preclinical studies strongly suggest significant efficacy of drugs targeting GP130/JAK/STAT3 in the treatment of pancreatic ductal adenocarcinoma and that these molecules are effective chemosensitizers. Though only a few trials have shown the efficacy in a clinical setting, the STAT3 pathway remains a promising drug target for future treatment of pancreatic ductal adenocarcinoma and may help overcome chemotherapy resistance.

26 June 2022 in Biomedicines
Verified
Journal Article
Open access
PDF file
ADAna Dugic
Ana Dugic
CGCristina Verdejo Gil
Cristina Verdejo Gil
Claudia MellenthinClaudia Mellenthin
Claudia Mellenthin
MVMiroslav Vujasinovic
Miroslav Vujasinovic
MLMatthias Löhr
Matthias Löhr
SMSteffen Mühldorfer
Steffen Mühldorfer
Autoimmune pancreatitis (AIP) is a rare etiological type of chronic pancreatitis. The clinical and radiological presentation of AIP often resembles that of pancreatic cancer. Identifying non-invasive markers for their early distinction is of utmost importance to avoid unnecessary surgery or a delay in steroid therapy. Thus, this systematic review was conducted to revisit all current evidence on the clinical utility of different serum biomarkers in diagnosing AIP, distinguishing AIP from pancreatic cancer, and predicting disease course, steroid therapy response, and relapse. A systematic review was performed for articles published up to August 2021 by searching electronic databases such as MEDLINE, Web of Science, and EMBASE. Among 5123 identified records, 92 studies were included in the qualitative synthesis. Apart from immunoglobulin (Ig) G4, which was by far the most studied biomarker, we identified autoantibodies against the following: lactoferrin, carboanhydrase II, plasminogen-binding protein, amylase-α2A, cationic (PRSS1) and anionic (PRSS2) trypsinogens, pancreatic secretory trypsin inhibitor (PSTI/SPINK1), and type IV collagen. The identified novel autoantigens were laminin 511, annexin A11, HSP-10, and prohibitin. Other biomarkers included cytokines, decreased complement levels, circulating immune complexes, N-glycan profile changes, aberrant miRNAs expression, decreased IgA and IgM levels, increased IgE levels and/or peripheral eosinophil count, and changes in apolipoprotein isoforms levels. To our knowledge, this is the first systematic review that addresses biomarkers in AIP. Evolving research has recognized numerous biomarkers that could help elucidate the pathophysiological mechanisms of AIP, bringing us closer to AIP diagnosis and its preoperative distinction from pancreatic cancer.

1 January 2022 in SSRN Electronic Journal
Verified
Preprint
Open access
PDF file
Claudia MellenthinClaudia Mellenthin
Claudia Mellenthin
Daniel Vasile BalabanDaniel Vasile Balaban
Daniel Vasile Balaban
ADAna Dugic
Ana Dugic
SCStéphane Cullati
Stéphane Cullati
Background: Patients with new-onset diabetes (NOD) are at risk of pancreatic adenocarcinoma (PDAC), but the most relevant additional risk factors and clinical characteristics are not well established. Objectives: Examine the risk for PDAC in NOD patients compared with persons without diabetes. Identify risk factors of PDAC among NOD patients. Methods: Medline, Embase, and Google Scholar were last searched in December 2021 for observational studies on NOD patients and assessing risk factors for developing PDAC. Pooled effects sizes with 95% confidence intervals (CI) were estimated with DerSimonian & Laird random effects models. Results: Nineteen studies were included. The overall percentage of PDAC in NOD patients was 0.39% (CI 0.32–0.48, 12 studies). The pooled odds ratio for PDAC in NOD patients versus patients with no diabetes was 3.35 (CI 2.75–4.09). Cases were older than controls by 5.79 years (CI 3.87–7.72, 9 studies). The highest risk of PDAC were with family history of PDAC (3.78, CI 2.03–7.05, 4 studies), pancreatitis (4.53, CI 2.00–10.25, 7 studies), gallstones (2.08, CI 1.14–3.79 3 studies), weight loss (2.49, CI 1.47–4.22, 4 studies), and high/rapidly increasing glycemia (2.33, CI 1.85–2.95 4 studies) leading to more insulin use (4.91, CI 1.62–14.86, 5 studies). Conclusions: New-onset diabetes is associated with PDAC. Important risk factors for PDAC among NOD patients are age, family history, and gallstones/pancreatitis. Symptoms are weight loss and rapid increase in glycemia. The identified risk factors could be used to develop a diagnostic model to screen NOD patients.

18 February 2022
Verified
Report
Closed access
Claudia MellenthinClaudia Mellenthin
Claudia Mellenthin
UFUniversity of Fribourg
University of Fribourg
VBVasile Balaban
Vasile Balaban
ADAna Dugic
Ana Dugic
SCStephane Cullati
Stephane Cullati
BEBernhard Egger
Bernhard Egger
Review question / Objective: Which additional risk factors raise the incidence of pancreatic cancer in the population of new onset diabetics? Condition being studied: Pancreatic cancer, new onset diabetes. Eligibility criteria: Inclusion criteria are:• English abstract available• The population of newly onset diabetics is examined, at least as a subgroup. Newly diagnosed is defined as onset of maximal 3 years ago.• Information on other risk factors of patients is available in the study.