Sebastian Saur

Dr. Sebastian Saur


Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

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

Representative Publications

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14 July 2021 in Current Rheumatology Reports
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Journal Article
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MSMaximilian Stelzer
Maximilian Stelzer
JHJörg Henes
Jörg Henes
SSSebastian Saur
Sebastian Saur
Purpose of the Review: Elevated levels of anti-phospholipid (aPL) antibodies are the most important criterion in the diagnosis of anti-phospholipid syndrome (APS) and are usually responsible for promoting the risk of thrombotic complications. Now, in the course of the global coronavirus disease 2019 (COVID-19) pandemic, measurable aPL antibodies have also been detected in a noticeable number of patients showing a variety ranging from studies with only isolated positive tests to cohorts with very high positivity. Thus, the question arises as to whether these two different clinical pictures may be linked. Recent Findings: The ambivalent results showed a frequent occurrence of the investigated aPL antibodies in COVID-19 patients to an individually varying degree. While some question a substantial correlation according to their results, a number of studies raise questions about the significance of a correlation of aPL antibodies in COVID-19 patients. Within the scope of this review, these have now been described and compared with each other. Summary: Ultimately, it is necessary to conduct further studies that specifically test aPL antibodies in a larger context in order to make subsequent important statements about the role of APS in COVID-19 and to further strengthen the significance of the described comparisons.

13 September 2022 in Journal of Clinical Medicine
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Journal Article
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Jörg C HenesJörg C Henes
Jörg C Henes
SSSebastian Saur
Sebastian Saur
DKDavid M Kofler
David M Kofler
CKClaudia Kedor
Claudia Kedor
CMChristoph Meisner
Christoph Meisner
EFEugen Feist
Eugen Feist
Background: The purpose of this trial was to evaluate the effectiveness and safety of the IL-6 receptor antibody Tocilizumab (TCZ) in the treatment of Familial Mediterranean Fever (FMF). Methods: This was a randomized, double-blinded, placebo-controlled phase II trial in adult patients with active FMF and an inadequate response or intolerance to colchicine (crFMF). The physician’s global assessment of disease activity (PGA), based on a five-point scale for six symptoms, was used as a clinical score, which had to be >2 at screening, together with elevated c-reactive protein (CRP) or erythrocyte sedimentation rate (ESR) and serum amyloid A (SAA) levels, to be eligible for inclusion. Patients were randomized 1:1 to either receive monthly TCZ or a placebo over a period of 24 weeks. The primary endpoint was the number of patients achieving an adequate response to treatment at week 16, defined as a PGA of ≤2 and normalized ESR or CRP and normalized SAA. Results: We randomized 25 patients with a median age of 31 years. At week 16, an adequate treatment response was achieved by two patients in the TCZ and none of the patients in the placebo arm (p = 0.089). SAA levels normalized with TCZ, but not with the placebo (p = 0.015). Conclusion: In this first randomized, placebo-controlled study in patients with active crFMF, more patients in the TCZ arm experienced a response to treatment in comparison to those receiving the placebo. As the prevention of amyloidosis is a major treatment goal in FMF, the normalization of SAA in TCZ-treated patients is essential. These findings have to be confirmed in a larger trial.

28 September 2021 in Rheumatology International
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Journal Article
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SSSebastian Saur
Sebastian Saur
ASAlexandra Schlögl
Alexandra Schlögl
TSTorsten Schmalen
Torsten Schmalen
SKSimon Krittian
Simon Krittian
APAnn-Christin Pecher
Ann-Christin Pecher
Jörg C HenesJörg C Henes
Jörg C Henes
Behçet’s disease (BD) can affect the genital system and is more common in Middle Eastern countries and Asia but also occurs in Caucasian people. Aim of this study was to evaluate the prevalence of sexual dysfunction (SD) and depression in patients with BD compared to a healthy control group (HCG). In addition, differences with regard to depression and patients’ origin were evaluated. This prospective, monocentric study included 106 consecutive patients from our specialized BD outpatient clinic. Patients were asked to fill out the paper based standardized and validated questionnaires International Index of Erectile Function (IIEF), the Female Sexual Function Index (FSFI) and the Beck Depression Inventory (BDI). In addition, 206 healthy controls were asked to fill out the questionnaires. 106 patients with BD were evaluated and 206 participants in the HCG. The mean age in BD group was 40.5 years as compared to 44.4 years in the HCG. Half of the patients had Middle Eastern and half Caucasian origin. SD was found in 24.5% of all subjects. Only 6.9% of male patients showed signs of SD, while half of the women’s group was suffering from SD. The prevalence for SD was significantly higher in women with Middle Eastern ethnic origin compared to women with Caucasian origin (75 vs. 33.3%, p = 0.024). Erectile Dysfunction occurred in 55% of all male patients which was not statistical different from the HCG. Genital ulcers affected 73.6% of all patients. Depression was found in 36.7% of all subjects as compared to 6.25% in the HCG (p < 0.001). Both, SD and depression correlated positively in males (p = 0.017) and females (p = 0.013). SD and depression are very common problems in BD and should be addressed by the treating physician. Both manifestations are intensifying each other. Depression especially is more prevalent compared to the healthy population.

20 January 2021 in Rheumatology Advances in Practice
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Journal Article
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SSSebastian Saur
Sebastian Saur
MHMarius Horger
Marius Horger
JHJörg Henes
Jörg Henes
Dear Editor, Takayasu arthritis is a systemic vasculitis affecting the large arteries [ 1], typically in young women. The first-line approach is the use of high-dose CSs, which can be combined with DMARDs, such as MTX, if needed. Other immunosuppressants, including biological agents targeting TNF-α or the IL6 receptor are used to treat patients with refractory Takayasu arthritis [ 2]. Given that there are still refractory patients, there is a need for new therapeutic options. In a genome-wide association study, an association between the onset of Takayasu arthritis and IL12B, in addition to the HLA-B gene region was found. IL12B encodes the IL12p40 subunit, which is a component of IL12 and IL23, and patients with Takayasu arthritis show elevated levels of serum IL12 [ 3].

1 August 2024 in The Journal of Rheumatology
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HHHenriette Haney
Henriette Haney
JKJens Klotsche
Jens Klotsche
MNMartina Niewerth
Martina Niewerth
SHSandra Hansmann
Sandra Hansmann
GEGabriele Erbis
Gabriele Erbis
KMKirsten Minden
Kirsten Minden
Objective: The aim of this study was to develop and psychometrically validate a self-report instrument to assess (1) competencies, (2) needs, and (3) satisfaction among youth transitioning from pediatric to adult rheumatology.Methods: The Transition-KompAZ was developed in several steps with conceptual and psychometric analyses. To test its psychometric properties, the instrument was administered to adolescents and young adults (AYAs; 16-25 years) with inflammatory rheumatic diseases before (group 1) or after (group 2) transfer to adult rheumatology. A 2-factor, higher-order confirmatory factor analysis (CFA) model was applied to test the hypothesized factor structure. Internal consistency was estimated using the approach of Raykov with the factor loadings and error variances estimated in the CFA. Spearman rank correlation coefficients were used to assess construct validity.Results: The Transition-KompAZ includes the following modules: (1) competencies in transition (knowledge, self-management), (2) needs (healthcare services, information), and (3) satisfaction (general, transitional care). A total of 173 AYAs (group 1: n = 86; group 2: n = 87) from 12 rheumatology sites completed the Transition-KompAZ. It showed good model fit (comparative fit index > 0.9; Tucker-Lewis index > 0.9; weighted root mean square residual < 0.9) with good internal consistency. The instrument demonstrated moderate-to-good construct validity and good test-retest reliability.Conclusion: The Transition-KompAZ appears to be a reliable tool for assessing important dimensions of transition. It may support a structured and individualized transition, as well as the evaluation of transition services. However, further studies are required to assess its predictive value in terms of transfer readiness and successful transition.

22 March 2025 in Rheumatology International
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Journal Article
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SSSebastian Saur
Sebastian Saur
BOBenedikt Obermaier
Benedikt Obermaier
RKReinhild Klein
Reinhild Klein
MHMatthias Hahn
Matthias Hahn
Falko FendFalko Fend
Falko Fend
APAnn-Christin Pecher
Ann-Christin Pecher
VEXAS (vacuoles, E1 enzyme, X-linked, autoinflammatory, somatic) syndrome is an autoinflammatory disorder characterized by somatic mutations in the UBA1 gene in hematopoietic stem cells and associated with diffuse inflammation and myelodysplastic changes amongst others. Due to unspecific symptoms the diagnosis is challenging, and there is an unmet need for clinical markers to select patients for genetic examination. Sera of 9 patients with confirmed VEXAS syndrome were analyzed for immunoglobulin (Ig)G4 levels. Disease parameters and clinical response to therapy were correlated with IgG4 levels. A histopathological examination was performed on the available samples to exclude IgG4-related autoimmune diseases. In this cohort, 44% of our patients showed markedly elevated serum IgG4 levels. We observed a general trend toward a positive correlation between IgG4 levels and inflammatory markers as well as a correlation with clinical response in one patient. Histopathological analysis showed no evidence of IgG4 related disease. IgG4 levels seem to be elevated in a relevant fraction of patients with VEXAS syndrome. In some cases, this might be misinterpreted as IgG4-related disease, a pitfall clinicians should be aware of. Furthermore, our results warrant the further evaluation of a potential correlation of IgG4 levels with disease activity and severity of inflammation. IgG4 serum levels might be useful in the evaluation of the disease course.