94 results on '"Alexandra Geusau"'
Search Results
2. Rifampicin Resistance Associated with rpoB Mutations in Neisseria gonorrhoeae Clinical Strains Isolated in Austria, 2016 to 2020
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Justine Schaeffer, Kathrin Lippert, Sonja Pleininger, Anna Stöger, Petra Hasenberger, Silke Stadlbauer, Florian Heger, Angelika Eigentler, Alexandra Geusau, Alexander Indra, Franz Allerberger, and Werner Ruppitsch
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Neisseria gonorrhoeae ,antibiotic resistance ,rifampicin ,whole-genome sequencing ,Microbiology ,QR1-502 - Abstract
ABSTRACT Due to increasing rates of antimicrobial resistance (AMR) in Neisseria gonorrhoeae, alternative treatments should be considered. To assess rifampicin’s potential as a gonorrhea treatment, we used rpoB mutations to estimate rifampicin resistance in Austrian N. gonorrhoeae isolates. We found 30% of resistant isolates clustering in three main phylogenomic branches. Rifampicin resistance was associated with resistance to other antibiotics. Therefore, rifampicin cannot be recommended as an alternative gonorrhea treatment in Austria, even in combination therapy. IMPORTANCE Gonorrhea, caused by Neisseria gonorrhoeae, is one of the most common bacterial sexually transmitted infections. It is treated with antibiotics, but an increasing number of N. gonorrhoeae strains are resistant to currently used treatments. In this study, we explored the potential of rifampicin, another antibiotic, as a treatment option for gonorrhea. However, around 30% of Austrian N. gonorrhoeae strains investigated were already resistant to rifampicin, which would limit its benefit as a gonorrhea treatment.
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- 2022
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3. Safety and tolerability of topically administered autologous, apoptotic PBMC secretome (APOSEC) in dermal wounds: a randomized Phase 1 trial (MARSYAS I )
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Elisabeth Simader, Denise Traxler, Mohammad Mahdi Kasiri, Helmut Hofbauer, Michael Wolzt, Christoph Glogner, Angela Storka, Michael Mildner, Ghazaleh Gouya, Alexandra Geusau, Carola Fuchs, Claudia Eder, Alexandra Graf, Michaela Schaden, Bahar Golabi, Marie-Bernadette Aretin, Susanne Suessner, Christian Gabriel, Walter Klepetko, Erwin Tschachler, and Hendrik Jan Ankersmit
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Medicine ,Science - Abstract
Abstract Developing effective therapies against chronic wound healing deficiencies is a global priority. Thus we evaluated the safety of two different doses of topically administered autologous APOSEC, the secretome of apoptotic peripheral blood mononuclear cells (PBMCs), in healthy male volunteers with artificial dermal wounds. Ten healthy men were enrolled in a single-center, randomized, double-blinded, placebo-controlled phase 1 trial. Two artificial wounds at the upper arm were generated using a 4-mm punch biopsy. Each participant was treated with both topically applied APOSEC and placebo in NuGel for 7 consecutive days. The volunteers were randomized into two groups: a low-dose group (A) receiving the supernatant of 12.5 × 106 PBMCs and a high-dose group (B) receiving an equivalent of 25 × 106 PBMCs resuspended in NuGel Hydrogel. Irradiated medium served as placebo. The primary outcome was the tolerability of the topical application of APOSEC. All adverse events were recorded until 17 days after the biopsy. Local tolerability assessment was measured on a 4-point scale. Secondary outcomes were wound closure and epithelization at day 7. No therapy-related serious adverse events occurred in any of the participants, and both low- and high-dose treatments were well tolerated. Wound closure was not affected by APOSEC therapy.
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- 2017
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4. Activation of Nrf2 in keratinocytes causes chloracne (MADISH)‐like skin disease in mice
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Matthias Schäfer, Ann‐Helen Willrodt, Svitlana Kurinna, Andrea S Link, Hany Farwanah, Alexandra Geusau, Florian Gruber, Olivier Sorg, Aaron J Huebner, Dennis R Roop, Konrad Sandhoff, Jean‐Hilaire Saurat, Erwin Tschachler, Marlon R Schneider, Lutz Langbein, Wilhelm Bloch, Hans‐Dietmar Beer, and Sabine Werner
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acne ,sebaceous gland ,Nrf2 ,oxidative stress ,skin ,Medicine (General) ,R5-920 ,Genetics ,QH426-470 - Abstract
Abstract The transcription factor Nrf2 is a key regulator of the cellular stress response, and pharmacological Nrf2 activation is a promising strategy for skin protection and cancer prevention. We show here that prolonged Nrf2 activation in keratinocytes causes sebaceous gland enlargement and seborrhea in mice due to upregulation of the growth factor epigen, which we identified as a novel Nrf2 target. This was accompanied by thickening and hyperkeratosis of hair follicle infundibula. These abnormalities caused dilatation of infundibula, hair loss, and cyst development upon aging. Upregulation of epigen, secretory leukocyte peptidase inhibitor (Slpi), and small proline‐rich protein 2d (Sprr2d) in hair follicles was identified as the likely cause of infundibular acanthosis, hyperkeratosis, and cyst formation. These alterations were highly reminiscent to the phenotype of chloracne/“metabolizing acquired dioxin‐induced skin hamartomas” (MADISH) patients. Indeed, SLPI, SPRR2, and epigen were strongly expressed in cysts of MADISH patients and upregulated by dioxin in human keratinocytes in an NRF2‐dependent manner. These results identify novel Nrf2 activities in the pilosebaceous unit and point to a role of NRF2 in MADISH pathogenesis.
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- 2014
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5. High Prevalence of Asymptomatic Sexually Transmitted Infections in Austrian Pre-Exposure Prophylaxis Users: A Prospective Observational Study
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David Chromy, Nikolaus Urban, Katharina Grabmeier-Pfistershammer, Veronique Touzeau-Roemer, Michael Skoll, Alexandra Geusau, Georg Stary, Thomas Reiberger, Robert Strassl, Birgit Willinger, Wolfgang Weninger, Armin Rieger, and Wolfgang Michael Bauer
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Infectious Diseases ,Public Health, Environmental and Occupational Health - Published
- 2023
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6. Identification of Genetic Risk Factors for Keratinocyte Cancer in Immunosuppressed Solid Organ Transplant Recipients: A Case-Control Study
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Wielscher, Raute Sunder-Plassmann, Alexandra Geusau, Georg Endler, Wolfgang Weninger, and Matthias
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keratinocyte cancer ,solid organ transplant recipients ,immunosuppression ,whole exome sequencing - Abstract
Because of long-term immunosuppression, solid organ transplant recipients are at increased risk for keratinocyte cancer. We matched solid organ transplant patients (n = 150), cases with keratinocyte cancers and tumor-free controls, considering the most important risk factors for keratinocyte cancer in solid organ transplant recipients. Using whole exome data of germline DNA from this patient cohort, we identified several genetic loci associated with the occurrence of multiple keratinocyte cancers. We found one genome-wide significant association of a common single nucleotide polymorphism located in EXOC3 (rs72698504). In addition, we found several variants with a p-value of less than 10−5 associated with the number of keratinocyte cancers. These variants were located in the genes CYB561, WASHC1, PITRM1-AS1, MUC8, ABI3BP, and THBS2-AS1. Using whole exome sequencing data, we performed groupwise tests for rare missense variants in our dataset and found robust associations (p < 10−6, Burden Zeggini test) between MC1R, EPHA8, EPO, MYCT1, ADGRG3, and MGME1 and keratinocyte cancer. Thus, overall, we detected genes involved in pigmentation/UV protection, tumor suppression, immunomodulation, intracellular traffic, and response to UV as genetic risk factors for multiple keratinocyte cancers in solid organ transplant recipients. We also grouped selected genes to pathways and found a selection of genes involved in the “cellular response to UV” to be significantly associated with multiple keratinocyte cancers.
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- 2023
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7. Immune Checkpoint Inhibitors in Solid Organ Transplant Recipients With Advanced Skin Cancers—Emerging Strategies for Clinical Management
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Carla Ferrándiz-Pulido, Ulrike Leiter, Catherine Harwood, Charlotte M. Proby, Martina Guthoff, Christina H. Scheel, Timm H. Westhoff, Jan Nico Bouwes Bavinck, Thomas Meyer, Mirjam C. Nägeli, Veronique del Marmol, Celeste Lebbé, and Alexandra Geusau
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Transplantation - Published
- 2023
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8. ESDR136 - Asymptomatic Sexually Transmitted Infections Are Commonly Detected in Austrian PrEP-Users
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Wolfgang Bauer, Armin Rieger, Wolfgang Weninger, Birgit Willinger, Georg Stary, Alexandra Geusau, Veronique Touzeau-Roemer, Katharina Grabmeier-Pfistershammer, Nikolaus Urban, and David Chromy
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- 2022
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9. Neurosyphilis und Psychose
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Alexandra Geusau, Fabian Friedrich, Nilufar Mossaheb, and Melanie Trimmel
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Gynecology ,medicine.medical_specialty ,business.industry ,medicine ,General Medicine ,business - Abstract
Epidemiologische Daten berichten stetig steigende Syphilis-Fallzahlen. Unbehandelt kann sich im Rahmen der Progression eine Neurosyphilis manifestieren. Ziel dieser Arbeit ist, eine Literaturubersicht uber die verschiedenen psychotischen Manifestationsformen der Neurosyphilis zu geben. Eine elektronische Literatursuche nach relevanten Publikationen von 1995 bis 2020 wurde durchgefuhrt. Die klinische Prasentation der Neurosyphilis ist mannigfaltig und umfasst ein weites Spektrum psychotischer Manifestationsformen. Angesichts der steigenden Syphilispravalenz und des variablen klinischen Erscheinungsbildes ist die differenzialdiagnostische Berucksichtigung der Neurosyphilis im psychiatrischen Bereich erforderlich und ein routinemasiges Syphilisscreening essenziell.
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- 2020
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10. Resistance profiles of Neisseria gonorrhoeae isolates in Vienna, Austria: a phenotypic and genetic characterization from 2013 to 2020
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Alexandra Geusau, David Chromy, Daniela Heissenberger, Kathrin Lippert, Claudia Eder, Florian Heger, Alexander Indra, Birgit Willinger, and Sonja Pleininger
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Microbiology (medical) ,Infectious Diseases ,Pharmacology (medical) ,General Medicine - Abstract
International surveillance data show a constant rise in the number of Neisseria gonorrhoeae infections and an increase in drug resistance of N. gonorrhoeae. As recent N. gonorrhoeae surveillance data in Austria are scarce, this study investigated phenotypic and genotypic antimicrobial resistance in N. gonorrhoeae isolates.In total, 440 N. gonorrhoeae samples were collected at the Medical University of Vienna, and the minimal inhibitory concentrations (MICs) for a range of different antibiotics were determined. Sampling sites and treatments were recorded, and whole-genome sequencing of N. gonorrhoeae isolates was performed using allele libraries to determine genotypic resistance.The median MICs for ceftriaxone, cefixime, azithromycin, ciprofloxacin, tetracycline and penicillin were0.002 µg/mL,0.016 µg/mL, 0.25 µg/mL, 2.0 µg/mL, 1.5 µg/mL and 0.25 µg/mL, respectively. Annual comparison showed that MICs were generally stable for all antimicrobial agents except azithromycin, for which an increase in median MIC was observed from 2017 (0.25 µg/mL). There was no genetic resistance to ceftriaxone; 8% of samples displayed resistance mutations against cefixime, primarily located in the penA gene. Resistance to azithromycin increased from 2% in 2013 to 12% in 2020. MtrD mosaic had the highest impact on azithromycin susceptibility; 47% of the resistant isolates showed this mutation. The majority of cases of gonorrhoea were treated successfully with either ceftriaxone or a ceftriaxone/azithromycin regime. Two treatment failures occurred under monotherapy with doxycycline. Overall, genotypic resistance corresponded significantly to all respective MICs.The resistance rate of N. gonorrhoeae to antibiotics has remained stable in Vienna over the last decade, except for azithromycin. The strong correlation found between genetic and phenotypic patterns in this study holds promise for future diagnostics of N. gonorrhoeae resistance based on genotypes.
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- 2022
11. Syphilis
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Alexandra Geusau
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- 2022
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12. Melanoma
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Alexandra Geusau and Julia Maria Ressler
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- 2022
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13. Cumulative UV Exposure or a Modified SCINEXA™-Skin Aging Score Do Not Play a Substantial Role in Predicting the Risk of Developing Keratinocyte Cancers after Solid Organ Transplantation—A Case Control Study
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Liliane Borik-Heil, Georg Endler, Walther Parson, Andreas Zuckermann, Lisa Schnaller, Keziban Uyanik-Ünal, Peter Jaksch, Georg Böhmig, Daniel Cejka, Katharina Staufer, Elisabeth Hielle-Wittmann, Susanne Rasoul-Rockenschaub, Peter Wolf, Raute Sunder-Plassmann, and Alexandra Geusau
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Cancer Research ,immunosuppression ,Oncology ,keratinocyte cancer ,solid organ transplant recipients ,MC1R ,UV burden ,skin aging - Abstract
The risk of keratinocyte cancer is determined by intrinsic and extrinsic factors, which also influence skin aging. Few studies have linked skin aging and UV exposure with the incidence of non-melanoma skin cancer (NMSC). We evaluated signs of actinic skin damage and aging, individual UV burden, and melanocortin-1 receptor (MC1R) variants. A total of 194 organ transplant recipients (OTR) who suffered from NMSC were compared to 194 tumor-free controls matched for gender, age, type of transplanted organ, post-transplantation (TX) period, and immunosuppressive therapy. Compared with the cases, the controls scored higher in all skin aging scores and there were no differences in UV burden except for intentional whole-body UV exposure for specific UV scenarios and periods of life in favor of cases. The number of NMSCs correlated with all types of skin aging scores, the extent of intentional sun exposure, older age, longer post-TX period, shorter interval from TX to first NMSC, and specific MC1R risk groups. Multivariable models revealed a 7.5-fold risk of developing NMSC in individuals with actinic keratosis; 4.1- or 3.6-fold in those with green or blue eyes, respectively; and a 1.9-fold increased risk in the MC1R medium- + high-risk group. In the absence of skin aging contributing to NMSC development, certain MC1R risk types may identify OTR at risk for high tumor burden.
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- 2023
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14. Bacterial, Fungal, and Viral Skin Infections in Organ Transplant Recipients
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Alexandra Geusau
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medicine.medical_specialty ,business.industry ,Immunology ,medicine ,Skin infection ,business ,medicine.disease ,Organ transplantation - Published
- 2021
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15. Cutaneous squamous cell carcinoma (cSCC) and immunosurveillance – the impact of immunosuppression on frequency of cSCC
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J.N. Bouwes Bavinck, Michael Max Sachse, Christoffer Gebhardt, Alexandra Geusau, Elsemieke I. Plasmeijer, and Dermatology
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Oncology ,medicine.medical_specialty ,Skin Neoplasms ,medicine.medical_treatment ,Azathioprine ,Dermatology ,030207 dermatology & venereal diseases ,03 medical and health sciences ,0302 clinical medicine ,Monitoring, Immunologic ,Internal medicine ,medicine ,Carcinoma ,Humans ,Immunosuppression Therapy ,Everolimus ,business.industry ,Immunosuppression ,medicine.disease ,Tacrolimus ,Immunosurveillance ,Infectious Diseases ,030220 oncology & carcinogenesis ,Sirolimus ,Carcinoma, Squamous Cell ,Skin cancer ,business ,Immunosuppressive Agents ,medicine.drug - Abstract
Solid organ transplant recipients (OTR) are at extreme risk of developing cutaneous squamous cell carcinomas (cSCC) post-transplantation due to the immunosuppressive medication needed to retain the transplanted organ. The early classical immunosuppressive drugs, azathioprine and cyclosporine, have largely been replaced by modern immunosuppressants, namely mycophenolate mofetil and tacrolimus, as well as sirolimus and everolimus. Although still very high, the risk of cSCC in OTR seems to be decreasing which suggests that cSCC risk may be lower in OTR treated with these modern immunosuppressive drugs and that cSCC preventive measures may be effective. OTR should be closely monitored so that cSCC can be treated at an early stage. (Chemo)prevention of cSCC as well as changing immunosuppression to more favourable regimens will be important in future to reduce skin cancer incidence.
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- 2019
16. The spectrum of skin diseases in four different types of organ-transplant recipients: a comparative single-centre cohort study
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Angelika Geroldinger, Alexandra Geusau, Liliane Borik-Heil, and Daniela Dunkler
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Adult ,Male ,medicine.medical_specialty ,Time Factors ,medicine.medical_treatment ,Population ,Dermatology ,Skin infection ,Gastroenterology ,Skin Diseases ,Organ transplantation ,Cohort Studies ,Postoperative Complications ,Internal medicine ,medicine ,Humans ,Basal cell carcinoma ,education ,Acne ,Aged ,Retrospective Studies ,education.field_of_study ,business.industry ,Incidence (epidemiology) ,Incidence ,Immunosuppression ,Organ Transplantation ,Middle Aged ,medicine.disease ,Female ,Skin cancer ,business - Abstract
BACKGROUND Organ transplant recipients (OTR) are at marked increased risk of skin cancer and skin infections compared to the general population. OBJECTIVES The purpose of this study was to acquire long-term incidence data on commonly occurring skin diseases in four different transplant groups. MATERIALS & METHODS This retrospective single-centre cohort study included 621 OTR. By counting defined malignant, inflammatory, infectious or drug-related skin conditions per patient and visit, incidence rates (IR) for the different groups of OTR were calculated as cases per 1000-patient years and cumulative incidences of non-melanoma skin cancer (NMSC), respectively. RESULTS Overall, 2,309 non-malignant skin conditions and 340 NMSC were registered. Skin infections were most common (51.4%), followed by inflammatory skin conditions (35.6%) and sun-induced skin damage (32.9%). Kidney transplant recipients (KTR) had a 4.7-fold (95% CI: 2.7-8.0; p
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- 2021
17. Consensus-Based Recommendations on the Prevention of Squamous Cell Carcinoma in Solid Organ Transplant Recipients A Delphi Consensus Statement
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Nathalie C. Zeitouni, Thomas Stasko, Sara J. Li, Emőke Rácz, Syed N. Shah, Catherine A. Harwood, Seaver L. Soon, Stephen Shumack, Alvin H Chong, Justin J. Leitenberger, Chrysalyne D. Schmults, Allison Hanlon, Manisha J. Loss, Petter Gjersvik, Elisa Zavattaro, Begoña Escutia-Muñoz, R. Samuel Hopkins, Thuzar M. Shin, Matthew C. Fox, Faramarz H. Samie, Charlotte M. Proby, Sarah A. Myers, Jennifer A. Desimone, Carla Ferrándiz-Pulido, Katie Blasdale, Walmar R. P. Oliveira, Sarah T. Arron, José M. Mascaró, Jan Nico Bouwes Bavinck, Günther F.L. Hofbauer, Veronica Ruiz-Salas, Edit B. Olasz Harken, Travis W. Blalock, Sean R. Christensen, Elizabeth M. Billingsley, Bichchau Nguyen, Véronique Del Marmol, John A. Carucci, Maryam M. Asgari, Fiona O. Zwald, Christina L. Chung, Deniz Seçkin, Roel E. Genders, Clark C. Otley, Paul R. Massey, Emilie Ducroux, Bryan T. Carroll, Alexandra Geusau, and Anokhi Jambusaria-Pahlajani
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medicine.medical_specialty ,Skin Neoplasms ,Delphi Technique ,medicine.medical_treatment ,Concordance ,Delphi method ,MEDLINE ,NONMELANOMA SKIN-CANCER ,Cryotherapy ,Dermatology ,Article ,DOUBLE-BLIND ,medicine ,Humans ,MULTIPLE ACTINIC KERATOSES ,5-PERCENT IMIQUIMOD ,Stage (cooking) ,IMMUNOSUPPRESSION ,business.industry ,Actinic keratosis ,Organ Transplantation ,medicine.disease ,Transplant Recipients ,RANDOMIZED-TRIAL ,Clinical trial ,Keratosis, Actinic ,REDUCTION ,Family medicine ,Carcinoma, Squamous Cell ,Skin cancer ,TOPICAL PHOTODYNAMIC THERAPY ,BOWENS-DISEASE ,business ,CREAM - Abstract
IMPORTANCE There is a paucity of evidence to guide physicians regarding prevention strategies for cutaneous squamous cell carcinoma (CSCC) in solid organ transplant recipients (SOTRs). OBJECTIVE To examine the development and results of a Delphi process initiated to identify consensus-based medical management recommendations for prevention of CSCC in SOTRs. EVIDENCE REVIEW Dermatologists with more than 5 years' experience treating SOTRs were invited to participate. A novel actinic damage and skin cancer index (AD-SCI), consisting of 6 ordinal stages corresponding to an increasing burden of actinic damage and CSCC, was used to guide survey design. Three sequential web-based surveys were administered from January 1, 2019, to December 31, 2020. Pursuant to Delphi principles, respondents thoroughly reviewed all peer responses between rounds. Supplemental questions were also asked to better understand panelists' rationale for their responses. FINDINGS The Delphi panel comprised 48 dermatologists. Respondents represented 13 countries, with 27 (56%) from the US. Twenty-nine respondents (60%) were Mohs surgeons. Consensus was reached with 80% or higher concordance among respondents when presented with a statement, question, or management strategy pertaining to prevention of CSCC in SOTRs. A near-consensus category of 70% to less than 80% concordance was also defined. The AD-SCI stage-based recommendations were established if consensus or near-consensus was achieved. The panel was able to make recommendations for 5 of 6 AD-SCI stages. Key recommendations include the following: cryotherapy for scattered actinic keratosis (AK); field therapy for AK when grouped in 1 anatomical area, unless AKs are thick in which case field therapy and cryotherapy were recommended; combination lesion directed and field therapy with fluorouracil for field cancerized skin; and initiation of acitretin therapy and discussion of immunosuppression reduction or modification for patients who develop multiple skin cancers at a high rate (10 CSCCs per year) or develop high-risk CSCC (defined by a tumor with approximately >= 20% risk of nodal metastasis). No consensus recommendation was achieved for SOTRs with a first low risk CSCC. CONCLUSIONS AND RELEVANCE Physicians may consider implementation of panel recommendations for prevention of CSCC in SOTRs while awaiting high-level-of-evidence data. Additional clinical trials are needed in areas where consensus was not reached.
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- 2021
18. Polymerase chain reaction for the diagnosis of herpesvirus infections in dermatology : Analysis of clinical data
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Verena Schremser, Alexandra Geusau, Erwin Tschachler, and Lukasz Antoniewicz
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Male ,Herpes simplex ,medicine.medical_treatment ,viruses ,030231 tropical medicine ,Context (language use) ,Dermatology ,medicine.disease_cause ,Polymerase Chain Reaction ,Virus ,law.invention ,Lesion ,03 medical and health sciences ,0302 clinical medicine ,law ,Virology ,medicine ,Humans ,Medical history ,030212 general & internal medicine ,Herpetic skin manifestations ,Polymerase chain reaction ,Retrospective Studies ,business.industry ,Varicella zoster virus ,Infant, Newborn ,virus diseases ,Immunosuppression ,Cytomegalovirus ,General Medicine ,Herpesviridae Infections ,DNA, Viral ,Female ,Original Article ,medicine.symptom ,business - Abstract
Summary Background Rapid identification of human herpesviruses from lesion swabs is necessary for timely initiation of antiviral treatment, especially with infections involving neonates and immunocompromised individuals. The aim of the study was to investigate the results of an in-house polymerase chain reaction (PCR) test for herpesviruses in patients with symptoms suggestive for a herpesvirus infection. Patients and methods In this single center retrospective study the results of 3677 lesion swab specimens tested for human herpes simplex virus 1 and 2 (HSV 1 and 2) and varicella zoster virus (VZV) were analyzed in the context of data sheets giving details of the suspected diagnosis, medical history as well as the demographic data of the patients. The PCR procedures for cytomegalovirus (CMV), Epstein-Barr virus (EBV) and human herpes virus 8 (HHV-8) were applied on special occasions. Results Of the samples 3369 (91.6%) were swabs and a minority were tissue or blood samples. Of the 3015 samples tested for HSV‑1, HSV‑2 and VZV concomitantly, 52.3% were positive for at least one of these viruses. Clinically distinct conditions, such as herpes zoster and varicella had a high rate of positive PCR results, ranging from 81% to 88%, respectively. Among HSV‑2 positive samples, 23.7% derived from human immunodeficiency virus (HIV) positive patients, in contrast to the 10.8% originating from immunocompetent patients, the difference being statistically significant (p Conclusion Distinct clinical diagnoses have a high correlation rate with positive PCR results. A significantly higher number of HSV‑2 positive results were found in HIV positive patients and in women.
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- 2019
19. Peptidase inhibitor 3 and chemokine ligand 27 may serve as biomarkers for actinic keratoses in organ transplant recipients
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Alexandra, Geusau, Stanislava, Tzaneva, Peter, Petzelbauer, Robert, Müllegger, Patrick M, Brunner, Liliane, Borik, and Michael, Mildner
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Male ,Imiquimod ,Administration, Topical ,Chemokine CCL27 ,Aminolevulinic Acid ,Middle Aged ,Severity of Illness Index ,Transplant Recipients ,Elafin ,Keratosis, Actinic ,Treatment Outcome ,Gene Expression Regulation ,Photochemotherapy ,Reference Values ,Humans ,Female ,Prospective Studies ,RNA, Messenger ,Biomarkers ,Aged ,Follow-Up Studies - Abstract
Molecular profiling of tissue samples in organ transplant recipients (OTRs) may allow early and minimally invasive identification of actinic keratosis (AK). The aim of this study was to compare mRNA expression profiles of 13 genes, as putative genetic biomarkers of AK, before and after treatment using two different field therapies, and to correlate the results with histological and clinical parameters. For this single-centre prospective randomized intra-patient-controlled study, 10 OTRs with AKs were recruited for field therapy with two cycles of methyl-5-aminolevulinate 16% cream-photodynamic therapy (PDT) at one site and imiquimod 5% cream for four weeks at another site. AKs in the PDT area were reduced significantly at one, two, and six months after completion of the treatment (p 0.001). The effect of imiquimod was weaker but still significant when evaluated during the same intervals (p 0.001). By comparing the mRNA expression profiles of various genetic markers before, during, and three months after therapy, we observed specific patterns of expression for skin-derived peptidase inhibitor 3 (PI3) and chemokine ligand 27 (CCL27) in all groups, regardless of the treatment modality. Compared to healthy skin, the expression of PI3 was strongly decreased and that of CCL27 increased in AK lesions before therapy. The expression level of both genes showed a significant convergence to values observed in healthy skin in both groups after therapy. The pattern and level of specific gene expression in actinic keratoses could serve as a biomarker.
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- 2019
20. Syphilis
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Alexandra Geusau
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- 2018
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21. Gonococcal infections in Austria: a long-term observation of prevalence and resistance profiles from 1999 to 2014
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Angelika Stary, Alexandra Geusau, Claudia Heller-Vitouch, Reinhard Hoepfl, Maria Haller, P. Komericki, Michael Binder, Georg Stary, and Klemens Rappersberger
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biology ,business.industry ,Gonorrhea ,Dermatology ,medicine.disease_cause ,medicine.disease ,biology.organism_classification ,Azithromycin ,Microbiology ,Agar dilution ,Penicillin ,medicine ,Neisseria gonorrhoeae ,Ceftriaxone ,Neisseria ,business ,Cefixime ,medicine.drug - Abstract
Summary Background and objectives The increase in minimum inhibitory concentrations (MICs) of cephalosporins for Neisseria gonorrhoeae has given rise to concerns regarding potentially untreatable gonococcal infections. The goal was to ascertain the prevalence of gonorrhea in a Viennese patient group and determine resistance patterns. Another objective was to evaluate resistance profiles and MIC values of gonococcal isolates in an Austria-wide surveillance project. Patients and methods From 1999 to 2014, 350,000 individuals were tested for gonococci at the Viennese Outpatient Clinic. In addition, from 2010 to 2014, the MICs of recommended antibiotics was determined in 3,584 gonococcal isolates, initially by agar dilution and breakpoint determination, and, from 2012 onwards, by Etest®. Results During the observation period, the prevalence of gonorrhea increased eightfold, with a significantly greater number of quinolone, penicillin, and tetracycline- resistant strains. In gonococcal strains isolated from across Austria, there was an increase in cefixime and ceftriaxone MICs toward breakpoints. Twenty-one isolates showed cefixime resistance, and while there was an increase in azithromycin resistance from 0.9 % (2013) to 3.2 % (2014), no resistance to ceftriaxone was observed. Conclusion Currently, there is no imminent risk of untreatable gonorrhea in Austria. However, continuing the use of gonococcal cultures as a diagnostic tool for establishing resistance profiles is essential in order to monitor trends in the development of Neisseria (N.) gonorrhoeae resistance.
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- 2015
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22. Die Gonokokkeninfektion in Österreich: Eine Langzeitbeobachtung der Prävalenz und Resistenzentwicklung von 1999 bis 2014
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Michael Binder, Angelika Stary, Claudia Heller-Vitouch, Klemens Rappersberger, Alexandra Geusau, Reinhard Hoepfl, Georg Stary, P. Komericki, and Maria Haller
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Gynecology ,medicine.medical_specialty ,biology ,business.industry ,Gonorrhea ,Dermatology ,medicine.disease ,Azithromycin ,medicine.disease_cause ,biology.organism_classification ,Agar dilution ,Penicillin ,Immunology ,medicine ,Ceftriaxone ,Neisseria gonorrhoeae ,Neisseria ,business ,Cefixime ,medicine.drug - Abstract
Zusammenfassung Hintergrund und Ziel: Die Zunahme der minimalen Hemmkonzentration (MHK) auf Cephalosporine bei Neisseria gonorrhoeae geben Anlass zur Besorgnis einer unbehandelbaren Gonokokkeninfektion. Ziel war die Erhebung der Pravalenz der Gonorrhoe in einem Wiener Patientenkollektiv und Bestimmung des Resistenzmusters sowie die Evaluierung des Resistenzprofils und der MHK-Werte bei Gonokokkenisolaten im Rahmen eines osterreichweiten Surveillance-Projektes. Patienten und Methodik: Von 1999 bis 2014 wurden 350 000 Patienten im Wiener Ambulatorium auf das Vorliegen einer Gonokokkeninfektion untersucht. Zusatzlich erfolgte von 2010 bis 2014 bei 3 584 Gonokokkenisolaten eine MHK-Bestimmung der empfohlenen Antibiotika zunachst mittels Agardilution und Breakpoint-Bestimmung, ab 2012 mittels E-Test. Ergebnisse: Im Beobachtungszeitraum hat sich die Zahl der Gonokokkeninfektionen im Wiener Patientenkollektiv verachtfacht und die Resistenz auf Chinolone, Penicillin und Tetrazykline dramatisch erhoht. Bei den osterreichweit isolierten Gonokokkenstammen war ein Anstieg der MHK von Cefixim und Ceftriaxon in Richtung Breakpoint feststellbar. Eine Cefixim-Resistenz war bei 21 Isolaten zu beobachten, ebenso eine Zunahme der Azithromycin-Resistenz von 0,9 % (2013) auf 3,2 % (2014), nicht jedoch eine Resistenz auf Ceftriaxon. Schlussfolgerungen: Derzeit besteht in Osterreich noch keine unmittelbare Gefahr einer nicht behandelbaren Gonorrhoe. Das Beibehalten der Gonokokkenkultur fur die Erstellung des Resistenzprofils ist jedoch fur die weitere Beobachtung der Resistenzentwicklung von Neisseria (N.) gonorrhoeae essentiell. Summary Background and objectives: The increase in minimum inhibitory concentrations (MICs) of cephalosporins for Neisseria gonorrhoeae has given rise to concerns regarding potentially untreatable gonococcal infections. The goal was to ascertain the prevalence of gonorrhea in a Viennese patient group and determine resistance patterns. Another objective was to evaluate resistance profiles and MIC values of gonococcal isolates in an Austria-wide surveillance project. Patients and methods: From 1999 to 2014, 350 000 individuals were tested for gonococci at the Viennese Outpatient Clinic. In addition, from 2010 to 2014, the MICs of recommended antibiotics was determined in 3584 gonococcal isolates, initially by agar dilution and breakpoint determination, and, from 2012 onwards, by Etest®. Results: During the observation period, the prevalence of gonorrhea increased eightfold, with a significantly greater number of quinolone, penicillin, and tetracycline-resistant strains. In gonococcal strains isolated from across Austria, there was an increase in cefixime and ceftriaxone MICs toward breakpoints. Twenty-one isolates showed cefixime resistance, and while there was an increase in azithromycin resistance from 0.9 % (2013) to 3.2 % (2014), no resistance to ceftriaxone was observed. Conclusion: Currently, there is no imminent risk of untreatable gonorrhea in Austria. However, continuing the use of gonococcal cultures as a diagnostic tool for establishing resistance profiles is essential in order to monitor trends in the development of Neisseria (N.) gonorrhoeae resistance.
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- 2015
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23. Safety and tolerability of topically administered autologous, apoptotic PBMC secretome (APOSEC) in dermal wounds: a randomized Phase 1 trial (MARSYAS I )
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Denise Traxler, Walter Klepetko, Ghazaleh Gouya, Michael Mildner, Mohammad Mahdi Kasiri, Erwin Tschachler, Helmut Hofbauer, Angela Storka, Hendrik Jan Ankersmit, Michaela Schaden, Carola Fuchs, Claudia Eder, Christoph Glogner, Elisabeth Simader, Alexandra Geusau, Alexandra Graf, Susanne Suessner, Christian Gabriel, Bahar Golabi, Michael Wolzt, and Marie-Bernadette Aretin
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Adult ,Male ,0301 basic medicine ,Chronic wound ,medicine.medical_specialty ,Science ,Administration, Topical ,Apoptosis ,030204 cardiovascular system & hematology ,Placebo ,Peripheral blood mononuclear cell ,Article ,law.invention ,03 medical and health sciences ,0302 clinical medicine ,Double-Blind Method ,Randomized controlled trial ,law ,Biopsy ,Humans ,Medicine ,Adverse effect ,Skin ,Skin, Artificial ,Wound Healing ,Multidisciplinary ,medicine.diagnostic_test ,business.industry ,Hydrogels ,Blood Proteins ,Healthy Volunteers ,Surgery ,Clinical trial ,030104 developmental biology ,Tolerability ,Culture Media, Conditioned ,Anesthesia ,Leukocytes, Mononuclear ,medicine.symptom ,business - Abstract
Developing effective therapies against chronic wound healing deficiencies is a global priority. Thus we evaluated the safety of two different doses of topically administered autologous APOSEC, the secretome of apoptotic peripheral blood mononuclear cells (PBMCs), in healthy male volunteers with artificial dermal wounds. Ten healthy men were enrolled in a single-center, randomized, double-blinded, placebo-controlled phase 1 trial. Two artificial wounds at the upper arm were generated using a 4-mm punch biopsy. Each participant was treated with both topically applied APOSEC and placebo in NuGel for 7 consecutive days. The volunteers were randomized into two groups: a low-dose group (A) receiving the supernatant of 12.5 × 106 PBMCs and a high-dose group (B) receiving an equivalent of 25 × 106 PBMCs resuspended in NuGel Hydrogel. Irradiated medium served as placebo. The primary outcome was the tolerability of the topical application of APOSEC. All adverse events were recorded until 17 days after the biopsy. Local tolerability assessment was measured on a 4-point scale. Secondary outcomes were wound closure and epithelization at day 7. No therapy-related serious adverse events occurred in any of the participants, and both low- and high-dose treatments were well tolerated. Wound closure was not affected by APOSEC therapy.
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- 2017
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24. Painful skin lesions and squamous cell carcinoma predict overall mortality risk in organ transplant recipients: a cohort study
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Catherine A. Harwood, Marie-Jeanne P. Gerritsen, Günther F.L. Hofbauer, Anna Belloni Fortina, Edit Olasz, Deniz Seçkin, J. Ricar, K. Jahn-Bassler, J.N. Bouwes Bavinck, Charlotte M. Proby, A. T. Güleç, Daniel D. Mosel, Alexandra Geusau, C.C. Oh, L. Mitchell, Beata Imko-Walczuk, P. Cetkovská, Stefano Piaserico, Alicja Dębska-Ślizień, and Andreas L. Serra
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Adult ,Male ,medicine.medical_specialty ,Skin Neoplasms ,Pain ,Kaplan-Meier Estimate ,Dermatology ,Organ transplantation ,Lesion ,03 medical and health sciences ,Cancer development and immune defence Radboud Institute for Health Sciences [Radboudumc 2] ,Postoperative Complications ,KIDNEY ,0302 clinical medicine ,Risk Factors ,Internal medicine ,Epidemiology ,medicine ,Carcinoma ,Humans ,030212 general & internal medicine ,Survival analysis ,Aged ,MALIGNANCY ,business.industry ,Mortality rate ,Hazard ratio ,Pain Perception ,Middle Aged ,medicine.disease ,CANCER ,Transplant Recipients ,Surgery ,Europe ,Keratoacanthoma ,030220 oncology & carcinogenesis ,North America ,Carcinoma, Squamous Cell ,Female ,medicine.symptom ,business ,Cohort study - Abstract
Item does not contain fulltext BACKGROUND: Organ transplant recipients (OTRs) have a highly increased risk of cutaneous squamous cell carcinomas (SCCs). Sensation of pain in cutaneous tumours is a powerful patient-reported warning signal for invasive SCCs in OTRs. OBJECTIVES: To investigate the impact of painful vs. painless skin lesions and SCC vs. other skin lesions on the overall mortality risk in OTRs. METHODS: We followed 410 OTRs from 10 different centres across Europe and North America between 2008 and 2015. These patients had been enrolled in an earlier study to define clinically meaningful patient-reported warning signals predicting the presence of SCC, and had been included if they had a lesion requiring histological diagnosis. Cumulative incidences of overall mortality were calculated using Kaplan-Meier survival analysis, and risk factors were analysed with Cox proportional hazard analysis. RESULTS: There was an increased overall mortality risk in OTRs who reported painful vs. painless skin lesions, with a hazard ratio (HR) of 1.6 [95% confidence interval (CI) 0.97-2.7], adjusted for age, sex and other relevant factors. There was also an increased overall mortality risk in OTRs diagnosed with SCC compared with other skin lesions, with an adjusted HR of 1.7 (95% CI 1.0-2.8). Mortality due to internal malignancies and systemic infections appeared to prevail in OTRs with SCC. CONCLUSIONS: We suggest that OTRs have an increased overall mortality risk if they develop painful skin lesions or are diagnosed with cutaneous SCC.
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- 2017
25. Syphilis
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Alexandra Geusau
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- 2017
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26. In Vitro Susceptibility of Candida Isolates from Organ Transplant Recipients to Newer Antifungals
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Birgit Willinger, Christine Poitschek, Lukasz Antoniewicz, Alexandra Geusau, and Elisabeth Presterl
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Male ,medicine.medical_specialty ,Posaconazole ,Antifungal Agents ,Itraconazole ,Veterinary (miscellaneous) ,Microbial Sensitivity Tests ,Biology ,Applied Microbiology and Biotechnology ,Microbiology ,Postoperative Complications ,Medical microbiology ,medicine ,Humans ,Candida ,Voriconazole ,Broth microdilution ,Candidiasis ,Organ Transplantation ,bacterial infections and mycoses ,Transplant Recipients ,Corpus albicans ,Case-Control Studies ,Anidulafungin ,Female ,Agronomy and Crop Science ,Fluconazole ,medicine.drug - Abstract
Organ transplant recipients (OTR) are at higher risk of developing life-threatening infections. In this study, we tested 527 Candida isolates obtained from the oral and genital mucosa from OTR and healthy controls in order to monitor antifungal susceptibility patterns in this particular risk group. Testing was carried out in parallel for already marketed azoles and anidulafungin. Minimal inhibitory concentrations (MICs) were determined using the E-test® for azoles and CLSI broth microdilution for anidulafungin. Overall, there was no difference in the distribution of Candida spp. for both groups, C. albicans being the most frequently isolated Candida sp. followed by C. glabrata. Also, there were only minor differences in the susceptibility patterns to all antifungal agents. All C. albicans isolates were fully susceptible to fluconazole and voriconazole. In C. glabrata, 2.2 % (n = 1) were resistant to fluconazole, and 82.6 % (n = 38) to itraconazole, and in C. krusei, 66.7 % (n = 2) were resistant in itraconazole. All strains were susceptible to voriconazole. Only fluconazole showed a higher rate of resistant C. glabrata isolates for OTR (3.7 %), whereas the control group showed only intermediate susceptible and no resistant isolates. As there are no breakpoints established for posaconazole by CLSI, breakpoints determined by EUCAST were used. A total of 87.9 % of C. albicans, 81.3 % of C. parapsilosis and 66.7 % of C. tropicalis were considered susceptible. C. glabrata and C. krusei showed higher MIC values and thus lesser susceptibility than the other Candida species. There were no differences observed between OTR and control groups. For anidulafungin, 99.8 % of C. albicans isolates were susceptible, 0.2 % were intermediate, whereas for C. glabrata, only 95.3 % were susceptible, 0.2 % were resistant and 4.5 % were interpreted as intermediate. Interestingly, the two resistant isolates were found in the control group. Also, the controls showed a marginally higher percentage of intermediate strains compared to the transplant patients. All in all, resistant isolates were only observed for C. glabrata of the control group.
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- 2014
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27. Prevalence of NSF following intravenous gadolinium-contrast media administration in dialysis patients with endstage renal disease
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Alexandra Geusau, M. Haumer, Michael Weber, Bruno Watschinger, Anita Neruda, Andreas Vychytil, and Gertraud Heinz-Peer
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Male ,medicine.medical_specialty ,Biopsy ,medicine.medical_treatment ,Urology ,Contrast Media ,Gadolinium ,Statistics, Nonparametric ,Nephrogenic Fibrosing Dermopathy ,Peritoneal dialysis ,Nephropathy ,Renal Dialysis ,Risk Factors ,Prevalence ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Dialysis ,Aged ,Retrospective Studies ,medicine.diagnostic_test ,business.industry ,Cumulative dose ,General Medicine ,Middle Aged ,medicine.disease ,Magnetic Resonance Imaging ,Surgery ,Nephrogenic systemic fibrosis ,Injections, Intravenous ,Skin biopsy ,Kidney Failure, Chronic ,Female ,Hemodialysis ,business ,Kidney disease - Abstract
To evaluate the prevalence of nephrogenic systemic fibrosis (NSF) in a patient population being at highest risk for developing this disease and to evaluate possible risk factors.The radiological records of 552 patients with ESRD being on hemodialysis (HD) or peritoneal dialysis (PD) were retrospectively reviewed to identify whether the patients underwent MR-examinations with or without intravenous administration of GBCA. In case of exposure to GBCA, the number of contrast injections, the benchmark and the cumulative doses of GBCA, and possible cofactors regarding pathogenesis of NSF were recorded. Diagnosis of NSF was confirmed either by deep skin biopsy or by review of medical and histopathological records. Data of NSF patients were compared with data of dialysis patients who did not develop NSF after MR-examinations.146 dialysis patients underwent MRI without i.v.-administration of GBCA. No case of NSF was observed in this patient population. 195/552 patients proved to have a total number of 325 well-documented exposures to GBCA. Seven different types of GBCA were used during these MR-examinations. NSF prevalence rate was 1.6%. One patient died of NSF. Three different types of GBCA were involved in 6 NSF cases. 4/6 proved to be confounded cases. The cumulative dose of GBCA, history of thrombosis, recent surgery, and the combination of HD and PD proved to be significant cofactors for the development of NSF (p.05). No significant difference regarding residual renal clearance (p=.898) and residual urine volume (p=.083) was found between NSF and non-NSF patients.The prevalence of NSF proved to be much lower in this high risk patient group being exposed to GBCA compared to the literature. NSF was not observed in ESRD patients undergoing MRI without administration of GBCA. Our data support a positive association between cumulative dose of GBCA and development of NSF. No positive association was found between residual renal clearance and residual urine volume and NSF.
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- 2010
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28. Sirolimus in renal transplant recipients with tuberous sclerosis complex: clinical effectiveness and implications for innate immunity
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Marcus D. Säemann, Gerhard J. Zlabinger, Afschin Soleiman, Manfred Hecking, Marko Poglitsch, Thomas Weichhart, Michael Haidinger, Wolfgang Enkner, Rainer Oberbauer, Alexandra Geusau, Walter H. Hörl, Daniela Prayer, and Karin Vonbank
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congenital, hereditary, and neonatal diseases and abnormalities ,Transplantation ,business.industry ,medicine.medical_treatment ,Immunosuppression ,medicine.disease ,nervous system diseases ,Calcineurin ,Tuberous sclerosis ,surgical procedures, operative ,Immune system ,Sirolimus ,Immunology ,Lymphangioleiomyomatosis ,medicine ,Cancer research ,business ,neoplasms ,Kidney transplantation ,medicine.drug - Abstract
Tuberous sclerosis complex (TSC) is caused by constitutively activated mammalian target of rapamycin (mTOR) resulting in nonmalignant tumours of several organs and consequently renal failure. Recent reports suggest a possible beneficial role of the mTOR-inhibitor (mTOR-I) sirolimus for TSC; however, safety and efficiency of sirolimus in TSC patients after renal transplantation, both as primary immunosuppressant as well as anti-proliferative agent, are still undefined. Moreover, it is currently unknown whether the TSC mutation affects the primary immune response in these patients. In this article, we report on three TSC patients after renal transplantation who have been converted from a calcineurin-inhibitor (CNI)-based immunosuppression to sirolimus. During 2 years of follow-up, renal allograft function was stable or even improved, and no significant sirolimus-associated side-effects were noted. Beneficial effects of sirolimus against TSC were detected in the skin, along with improved spirometric measurements and an arrest of astrocytoma progression. We show that the inflammatory immune response was significantly altered in TSC patients as compared with controls and sirolimus potently affected both inflammatory cytokine production and vascular endothelial growth factor levels in these patients. Larger studies are warranted to further examine the relationship between clinical parameters and the molecular response to mTOR-inhibition in TSC patients after renal transplantation.
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- 2010
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29. Methotrexate-induced primary cutaneous diffuse large B-cell lymphoma with an âangiocentricâ histological morphology
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Ulrich Jäger, Georg Stingl, K Pfistershammer, P Mastan, Andreas Chott, Peter Petzelbauer, Alexandra Geusau, and Cathrin Skrabs
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CD20 ,Pathology ,medicine.medical_specialty ,Lymphomatoid granulomatosis ,CD30 ,biology ,business.industry ,Pityriasis lichenoides ,Dermatology ,medicine.disease ,Lymphoma ,hemic and lymphatic diseases ,Primary Cutaneous Diffuse Large B-Cell Lymphoma ,biology.protein ,Medicine ,Fibrinoid necrosis ,business ,Diffuse large B-cell lymphoma - Abstract
A patient with a 25-year history of rheumatoid arthritis and a 3-year history of methotrexate treatment developed a generalized papular rash. The papules rapidly became necrotic and then resolved, leaving a depressed scar. The rapid course of lesion development and regression was reminiscent of pityriasis lichenoides. Histology revealed a nodular infiltrate composed of a mixture of pleomorphic large B cells positive for CD20, CD30 and CD79a, and of small T cells positive for CD3 and CD4. The T cells had a striking angiocentric distribution, with some of the vessels exhibiting fibrinoid necrosis of the vessel wall reminiscent of lymphomatoid granulomatosis. However, B cells were consistently negative for Epstein-Barr virus (EBV) antigen expression. A thorough examination excluded involvement of organs other than the skin. Thus, this patient was classified as having a rare form of an EBV-negative primary cutaneous T-cell-rich B-cell lymphoma in association with methotrexate treatment.
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- 2010
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30. Mucosal Candida infection and colonisation as well as associated risk factors in solid organ transplant recipients
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Alexandra Geusau, D. Relijc, C. Poitschek, L. Antoniewicz, and Elisabeth Presterl
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Adult ,Male ,Microbiology (medical) ,medicine.medical_specialty ,Transplants ,Biology ,Organ transplantation ,Immunocompromised Host ,Medical microbiology ,Risk Factors ,medicine ,Humans ,Prospective Studies ,Oral mucosa ,Risk factor ,Mycosis ,Aged ,Candida ,Mucous Membrane ,Candidiasis ,Case-control study ,General Medicine ,Middle Aged ,medicine.disease ,Tacrolimus ,Transplantation ,Infectious Diseases ,medicine.anatomical_structure ,Case-Control Studies ,Carrier State ,Immunology ,Female - Abstract
More detailed information on Candida colonisation and infection of the mucous membranes in organ transplant recipients (OTR) is of particular interest. Therefore, this issue was prospectively evaluated in 400 different OTR in different posttransplantation periods as well as in 405 healthy age- and sex-matched controls. In addition, possible risk factors and the clinical condition in the OTR were evaluated. Independent of the transplanted organ there is a statistically significant decrease in the number of positive culture results, of symptomatic candidiasis and an increase of isolated non-albicans Candida species corresponding to length of the posttransplantation period. No significant differences could be observed in the OTR in association with different immunosuppressive regimen; however, higher dosages of corticosteroids and tacrolimus correlated with symptomatic candidiasis. As Candida spp. may also cause systemic infection and dissemination, additional knowledge about cofactors and associated strains may have an impact on therapeutic decisions.
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- 2009
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31. New Chlamydia trachomatis L2 Strains Identified in a Recent Outbreak of Lymphogranuloma Venereum in Vienna, Austria
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Bernd Gmeinhart, Thomas Meyer, Christine Bangert, Armin Rieger, Christian Jantschitsch, Reinhard Kirnbauer, Norbert Kohrgruber, Alexandra Geusau, Angelika Stary, and Georg Stary
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Adult ,Male ,Microbiology (medical) ,Sexually transmitted disease ,Genotype ,Biovar ,Molecular Sequence Data ,Chlamydia trachomatis ,Dermatology ,urologic and male genital diseases ,medicine.disease_cause ,Disease Outbreaks ,Men who have sex with men ,Microbiology ,medicine ,Humans ,Chlamydiaceae ,Homosexuality, Male ,Base Sequence ,biology ,business.industry ,Lymphogranuloma venereum ,Public Health, Environmental and Occupational Health ,Outbreak ,Sequence Analysis, DNA ,Middle Aged ,medicine.disease ,biology.organism_classification ,Virology ,Infectious Diseases ,Austria ,Lymphogranuloma Venereum ,Coinfection ,business ,Bacterial Outer Membrane Proteins - Abstract
Background: Since 2003, an ongoing outbreak of lymphogranuloma venereum (LGV), caused by Chlamydia trachomatis biovar L2b, has been reported among men who have sex with men. Methods: Twenty-four samples positive for C. trachomatis were analyzed for specific biovars and genovariants by genotyping of the variable segment (VS) 4, VS2 and VS1 regions of the outer membrane protein (omp) A. In addition we assessed the patients’ sociodemographic background and clinical signs and symptoms. Results: Twenty-four men who have sex with men presented with either anorectal or inguinal symptoms and tested positive for C. trachomatis DNA. Of these, the L2 genotype accounted for 15 patients, with a high coinfection rate with HIV (73.3%) and other sexually transmitted infections (53.4%). Analysis of the VS1, VS2, and VS4 regions of the ompA gene revealed the variant L2b in 8 patients. In 4 patients, 3 new L2 sequences were identified with nucleotide changes in the VS1, VS2, and VS4 region, respectively, defining new strains designated L2c, d, e. Conclusions: This outbreak of LGV represents the further spread of C. trachomatis L2 infection. Sequence analysis of ompA regions shows heterogeneity of L2 variants, suggesting more than 1 source of the LGV infections diagnosed in Vienna.
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- 2008
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32. Gonococcal infections in Austria: a long-term observation of prevalence and resistance profiles from 1999 to 2014
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Angelika, Stary, Claudia, Heller-Vitouch, Michael, Binder, Alexandra, Geusau, Georg, Stary, Klemens, Rappersberger, Peter, Komericki, Reinhard, Hoepfl, and Maria, Haller
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Adult ,Aged, 80 and over ,Male ,Adolescent ,Middle Aged ,Anti-Bacterial Agents ,Disease Outbreaks ,Gonorrhea ,Young Adult ,Age Distribution ,Treatment Outcome ,Risk Factors ,Austria ,Population Surveillance ,Drug Resistance, Bacterial ,Prevalence ,Humans ,Female ,Longitudinal Studies ,Sex Distribution ,Aged - Abstract
The increase in minimum inhibitory concentrations (MICs) of cephalosporins for Neisseria gonorrhoeae has given rise to concerns regarding potentially untreatable gonococcal infections. The goal was to ascertain the prevalence of gonorrhea in a Viennese patient group and determine resistance patterns. Another objective was to evaluate resistance profiles and MIC values of gonococcal isolates in an Austria-wide surveillance project.From 1999 to 2014, 350,000 individuals were tested for gonococci at the Viennese Outpatient Clinic. In addition, from 2010 to 2014, the MICs of recommended antibiotics was determined in 3,584 gonococcal isolates, initially by agar dilution and breakpoint determination, and, from 2012 onwards, by Etest®.During the observation period, the prevalence of gonorrhea increased eightfold, with a significantly greater number of quinolone, penicillin, and tetracycline- resistant strains. In gonococcal strains isolated from across Austria, there was an increase in cefixime and ceftriaxone MICs toward breakpoints. Twenty-one isolates showed cefixime resistance, and while there was an increase in azithromycin resistance from 0.9 % (2013) to 3.2 % (2014), no resistance to ceftriaxone was observed.Currently, there is no imminent risk of untreatable gonorrhea in Austria. However, continuing the use of gonococcal cultures as a diagnostic tool for establishing resistance profiles is essential in order to monitor trends in the development of Neisseria (N.) gonorrhoeae resistance.
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- 2015
33. Neurosyphilis is Unlikely in Patients with Late Latent Syphilis and a Negative Blood VDRL-Test
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Stefan Wöhrl and Alexandra Geusau
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Adult ,Male ,medicine.medical_specialty ,Pediatrics ,Dermatology ,Sensitivity and Specificity ,Spinal Puncture ,Serology ,Neurosyphilis ,Syphilis Serodiagnosis ,HIV Seropositivity ,medicine ,Humans ,Latent Syphilis ,Aged ,Cerebrospinal Fluid ,medicine.diagnostic_test ,Lumbar puncture ,business.industry ,General Medicine ,Middle Aged ,medicine.disease ,Surgery ,Female ,Syphilis ,business ,Treponematosis - Abstract
Patients with latent syphilis or syphilis of unknown duration should be evaluated for tertiary disease and neurosyphilis. The aim of this retrospective study was to determine relevant serological parameters for the identification of those individuals with syphilis who are most likely to have neurosyphilis and who therefore require lumbar puncture. After excluding repeated estimates and patients whose blood syphilis serology had either been negative or not been determined within 3 months of lumbar puncture, 265 out of 710 cerebrospinal fluids from 1988 to 2004 were analysed. In each of those patients the earliest available pairs of serum and cerebrospinal fluid samples were evaluated. The diagnosis of neurosyphilis was based on criteria according to established guidelines. Forty-three of 265 patients (16.2%; 5 women, 38 men; mean age 47+/-16 years) had neurosyphilis. Seven of 72 (9.7%) of those testing HIV-positive, fulfilled the criteria of neurosyphilis. Not a single patient with neurosyphilis tested Venereal Disease Research Laboratory test (VDRL)-negative in peripheral blood, an effect which was highly significant (p < 0.01, chi2-test). The median blood-VDRL titre was significantly higher in patients with neurosyphilis than in those without (1:32 vs. 1:0; p < 0.01, t-test, two-sided). Hence, neurosyphilis is very unlikely in patients with a negative blood-VDRL. Therefore, lumbar puncture is not recommended in these patients.
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- 2006
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34. Specialty Clinics for the Dermatologic Care of Solid-Organ Transplant Recipients
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John A. Carucci, Carlos Ferrándiz, Thomas Stasko, Christine Brown, James C. Shaw, Alexandra Geusau, Sylvie Euvrard, Claas Ulrich, I. D. A. Orengo, Clark C. Otley, Leslie J. Christenson, Theresa R. Pacheco, Eggert Stockfleth, and Daniel Berg
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Patient Care Team ,medicine.medical_specialty ,Outpatient Clinics, Hospital ,Skin Neoplasms ,business.industry ,MEDLINE ,Specialty ,Organ Transplantation ,Dermatology ,General Medicine ,medicine.disease ,Subspecialty ,Organ transplantation ,Patient Care Management ,Transplantation ,Intervention (counseling) ,medicine ,Humans ,Outpatient clinic ,Surgery ,Patient Care ,Skin cancer ,business ,Intensive care medicine - Abstract
Background. Solid-organ transplant recipients constitute a complex patient population that experiences numerous and aggressive skin cancers. Proactive, comprehensive, ongoing, and effective dermatologic care of these patients is a necessity. Objective. The objective of this study was to emphasize the need for organized dermatologic care for transplant recipients and to collect and present various proactive paradigms established in and designed for different practice settings to manage organ transplant recipients at high risk for skin cancer. Methods. Information about practice setting, patient demographics, and the care model used was obtained through questionnaires sent to a selection of 12 physicians known to care for transplant recipients in various practice settings. Results. All 12 physicians completed the questionnaire. The organized dermatologic care of transplant recipients occurs in three basic clinic settings: multidisciplinary transplant clinics, designated dermatology transplant subspecialty clinics, and integration of transplant recipient care within existing dermatology clinics. Conclusions. Various practice settings offer both advantages and disadvantages in providing preventive and therapeutic care of organ transplant recipients at risk for skin cancer. Regardless of the clinic design used, an organized and firmly established clinic model to allow proactive and ongoing care for these patients is important for education, prevention, and early intervention.
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- 2004
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35. Universal antenatal screening for syphilis: is it still justified economically?
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Peter Husslein, Herbert Kiss, Alexander Widhalm, and Alexandra Geusau
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Sexually transmitted disease ,medicine.medical_specialty ,Pediatrics ,medicine.diagnostic_test ,business.industry ,Incidence (epidemiology) ,Obstetrics and Gynecology ,Fluorescent treponemal antibody absorption test ,medicine.disease ,humanities ,Congenital syphilis ,Reproductive Medicine ,Epidemiology ,Medicine ,Seroprevalence ,Syphilis ,business ,Treponematosis - Abstract
Objective : Because universal prenatal screening for syphilis has recently been called into question, we documented the development of syphilis in Austria and analysed the effectiveness of current antenatal syphilis screening practices. Methods : The development of syphilis in Austria and Vienna was determined based on the data published by the Austrian Bureau of National Statistics (Statistik Austria) and the Vienna Health Authority (Gesundheitsamt Wien, MA15), respectively. The data obtained for Vienna were then compared with those for the remaining eight federal provinces. Also, we retrospectively analysed a total of 34,312 sera obtained between 1988 and 1999 from women screened for syphilis at delivery at the laboratory of the Department of Dermatology, University of Vienna. Serological screening was done with both the Veneral Disease Research Laboratory (VDRL) and the Treponema pallidum haemagglutination (TPHA) assays. Finally, we determined the number of cases of congenital syphilis diagnosed in Vienna between 1988 and 1999. Results : In the past 10 years, the annual number of reported syphilis cases has remained fairly constant. In 1999 and 2000, there were 8.1 and 11.0 notifications of syphilis per 100,000 inhabitants in the capital Vienna, compared with 0.7 and 0.9 in the remaining provinces with a mainly rural character. At delivery, there were 96 cases of maternal syphilis that were both TPHA- and fluorescent treponemal absorption (FTA-ABS)-reactive, corresponding to a seroprevalence of 2.8 per 1000 births. Only 24 of the TPHA-reactive sera were VDRL-reactive. In Vienna, there were three stillbirth deliveries due to congenital syphilis and six cases of confirmed congenitally syphilis between 1988 and 1999. Conclusion : Universal syphilis screening may no longer be justified economically. The usefulness of VDRL-based syphilis screening should be reassessed. The screening focus should shift to regions with a high seroprevalence of syphilis. Universal syphilis screening does not appear warranted.
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- 2004
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36. Pemphigoid gestationis: treatment with immunoapheresis. Pemphigoid gestationis: Behandlung durch Immunapherese
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Georg Stingl, Franz Karlhofer, Kurt Derfler, D. Zillikens, Alexandra Geusau, and Stefan Wöhrl
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Pemphigoid ,medicine.medical_specialty ,integumentary system ,medicine.drug_class ,business.industry ,medicine.medical_treatment ,Autoantibody ,Dermatology ,medicine.disease ,eye diseases ,Bullous Pemphigoid Antigen ,Pemphigoid Gestationis ,medicine ,Corticosteroid ,Plasmapheresis ,Bullous pemphigoid ,skin and connective tissue diseases ,business ,Blistering disease - Abstract
Summary Background: Pemphigoid (herpes) gestationis is a rare blistering disease of pregnancy. Topical and systemic corticosteroids and antihistamines are usually sufficient for treatment. Case report: A patient suffering from severe, therapy-resistant pemphigoid gestationis was successfully treated with the additional use of six sessions of immunoapheresis. Systemic corticosteroids could be tapered and serum autoantibody levels to bullous pemphigoid antigen 2 (BPAG2 = BP180) significantly dropped during this treatment. Conclusion: Immunoapheresis represents a helpful therapeutic option with few side effects for severe cases of pemphigoid gestationis, unresponsive to conventional treatment. Zusammenfassung Hintergrund: Pemphigoid (Herpes) gestationis ist eine seltene, blasenbildende Schwangerschaftsdermatose. Topische und systemische Kortikosteroide und Antihistaminika sind im Normalfall zur Therapie ausreichend. Fallbericht: Eine Patientin litt unter einer schweren, therapieresistenten Form eines Pemphigoid gestationis. Unter einer Zusatztherapie mit 6maliger Immunapherese heilten die Hautlasionen vollig ab und orales Kortison konnte ausgeschlichen werden. Die Titer der Autoantikorper gegen das bullose Pemphigoid Antigen 2 (BPAG2 = BP 180) fielen unter dieser Therapie deutlich ab. Schlusfolgerung: Immunapherese ist eine rationale, nebenwirkungsarme Therapieoption in Fallen von schwerem, therapieresistenten Pemphigoid gestationis.
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- 2003
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37. Syphilis: the Great Mimicker
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Anton Stift, Georg Stary, Claus Kölblinger, Friedrich Wrba, Alexandra Geusau, and Andreas Wibmer
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medicine.medical_specialty ,business.industry ,medicine ,Syphilis ,Dermatology ,medicine.disease ,business - Published
- 2012
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38. Severe 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) intoxication: Insights into the measurement of hepatic cytochrome P450 1A2 induction*
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Klaus Abraham, Yalcin Tosun, Steffen Bauer, Jürgen Brockmöller, Alexandra Geusau, and Hans Helge
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Adult ,Male ,medicine.medical_specialty ,Polychlorinated Dibenzodioxins ,Urinary system ,Metabolite ,010501 environmental sciences ,Methylation ,01 natural sciences ,03 medical and health sciences ,chemistry.chemical_compound ,Theophylline ,Cytochrome P-450 CYP1A2 ,In vivo ,Caffeine ,Internal medicine ,medicine ,Humans ,Pharmacology (medical) ,Enzyme inducer ,Uracil ,030304 developmental biology ,0105 earth and related environmental sciences ,Paraxanthine ,Pharmacology ,Breath test ,0303 health sciences ,medicine.diagnostic_test ,biology ,Chemistry ,Smoking ,CYP1A2 ,Uric Acid ,3. Good health ,Teratogens ,Endocrinology ,Breath Tests ,Liver ,Biochemistry ,Case-Control Studies ,Enzyme Induction ,Xanthines ,biology.protein ,Environmental Pollutants ,Female - Abstract
Objective The correct in vivo quantification of aryl hydrocarbon receptor-mediated induction of cytochrome P450 1A2 (CYP1A2) in humans is a long-standing question. We compared the performance of several modifications of the caffeine test for measurement of CYP1A2 activity in subjects with exceptionally high, low, or absent enzyme induction. Methods CYP1A2 activity was measured in 2 women highly exposed to 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), in 1 man moderately exposed, and in 50 control subjects (30 nonsmokers and 20 heavy smokers). After the application of a test dose, caffeine demethylation was detected with the carbon 13 breath test, the total clearance, and several serum and urinary metabolite ratios. Results In the highly TCDD-exposed persons, results of the breath test (cumulative 15-minute dose), the total caffeine clearance, the serum metabolic ratio paraxanthine/caffeine (30 and 120 minutes after application), and the urinary metabolic ratio sum of5-acetylamino-6-formylamino-3-methyluracil (AFMU), 1-methyluric acid (1U), and 1-methylxanthine (1X) over 1,7-dimethyluric acid (17U) showed a CYP1A2 activity 8 to 10 times higher than the mean of nonsmokers. In contrast, two caffeine urinary metabolic ratios with the parent substance in the denominator did not reflect the CYP1A2 enzyme induction. These ratios strongly depended on urine flow. For the breath test, only results evaluated for ashort sampling period (eg, 15 minutes after application) revealed the high induction. Compared with nonsmokers, higher mean values (maximally 1.8 times) were observed in smokers with all tests. Conclusion After high TCDD exposure, hepatic CYP1A2 activity is inducible at least 10 times in humans. Moderate TCDD exposure (up to 1000 ppt in blood fat) does not cause a CYP1A2 induction that can be measured to differentiate from background exposure individually. Therefore direct quantification of such toxins is more specific and sensitive. Clinical Pharmacology & Therapeutics (2002) 72, 163–174; doi: 10.1067/mcp.2002.126408
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- 2002
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39. Successful treatment of an aciclovir-resistant herpes simplex type 2 infection with cidofovir in an AIDS patient
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Armin Rieger, T. Kopp, Alexandra Geusau, and Georg Stingl
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Adult ,Ganciclovir ,medicine.medical_specialty ,medicine.drug_class ,Herpesvirus 2, Human ,viruses ,Organophosphonates ,Acyclovir ,Dermatology ,medicine.disease_cause ,Antiviral Agents ,Gastroenterology ,Herpesviridae ,Cytosine ,chemistry.chemical_compound ,Organophosphorus Compounds ,Internal medicine ,Drug Resistance, Viral ,medicine ,Humans ,Aciclovir ,Pneumonitis ,AIDS-Related Opportunistic Infections ,business.industry ,virus diseases ,Herpes Simplex ,medicine.disease ,Virology ,Valaciclovir ,Herpes simplex virus ,chemistry ,Female ,Fissure in Ano ,Antiviral drug ,business ,Cidofovir ,medicine.drug - Abstract
Summary Management of the increasing frequency of aciclovir-resistant herpes simplex virus (HSV) infections among immunocompromised human immunodeficiency virus-infected people demands additional treatment options. We report the case of a 38-year-old patient with acquired immune deficiency syndrome who suffered from a perianal butterfly ulcer, which was HSV-2 positive by polymerase chain reaction (PCR) analysis. The ulcer appeared during treatment of a cytomegalovirus (CMV) pneumonitis with ganciclovir. Despite additional valaciclovir therapy the lesion gradually progressed in size. Investigations including histology, PCR analysis and in situ hybridization of a biopsy from the growing ulcer margin confirmed the presence of HSV-2 infection. Importantly, HSV isolates from this specimen were resistant to aciclovir. Based on a report about the successful treatment of aciclovir-resistant HSV infection with cidofovir, our patient received this drug intravenously at a dose of 5 mg kg−1 body weight once weekly for a total of 3 weeks. Concomitant oral probenecid and prehydration were administered to minimize nephrotoxicity. Within 30 days of treatment the ulcer had almost (> 95%) completely healed. We conclude that cidofovir is a potent antiviral drug with a potential usefulness in the treatment of aciclovir-resistant HSV-2 infection. It deserves further investigation in clinical trials.
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- 2002
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40. Pain identifies squamous cell carcinoma in organ transplant recipients: the SCOPE-ITSCC PAIN study
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Andreas L. Serra, K. Jahn, Hermina C. Wisgerhof, Beata Imko-Walczuk, Laurence Feldmeyer, Günther F.L. Hofbauer, Elsemieke I. Plasmeijer, P. Cetkovská, Daniel D. Mosel, K. Baumann Conzett, Roel E. Genders, Marie-Jeanne P. Gerritsen, M. S. Pokorney, Edit Olasz, L. Mitchell, J. Ricar, Alexandra Geusau, J.N. Bouwes Bavinck, Charlotte M. Proby, Stefano Piaserico, A. Belloni Fortina, A. T. Güleç, Catherine A. Harwood, Deniz Seçkin, University of Zurich, and Bouwes Bavinck, J N
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squamous cell carcinoma ,Adult ,Male ,medicine.medical_specialty ,Skin Neoplasms ,2747 Transplantation ,Visual analogue scale ,Pain ,610 Medicine & health ,Physical examination ,Adverse effect ,Organ transplantation ,Cancer development and immune defence Radboud Institute for Health Sciences [Radboudumc 2] ,Aged ,Carcinoma, Squamous Cell ,Female ,Follow-Up Studies ,Humans ,Middle Aged ,Organ Transplantation ,Prognosis ,Risk Factors ,Surveys and Questionnaires ,Internal medicine ,2736 Pharmacology (medical) ,Immunology and Allergy ,Medicine ,10035 Clinic for Nephrology ,Pharmacology (medical) ,Basal cell ,Medical diagnosis ,Transplantation ,medicine.diagnostic_test ,business.industry ,Carcinoma ,10177 Dermatology Clinic ,Odds ratio ,Confidence interval ,Surgery ,stomatognathic diseases ,Squamous Cell ,2723 Immunology and Allergy ,business - Abstract
Item does not contain fulltext Organ transplant recipients (OTR) are at high risk for cutaneous squamous cell carcinomas (SCC). We aimed to define clinically meaningful patient-reported warning signals predicting the presence of invasive SCC.Patient-reported signs and symptoms of 812 consecutively biopsied skin lesions from 410 OTR were determined by questionnaire and physical examination and related to the subsequent biopsy-proven diagnoses. Receiver-operating characteristic (ROC) curve analyses were used as a measure of distinction between the predictive values of patient-reported warning signals and the occurrence of SCC. Pain was an independent predictive patient-reported warning signal for a biopsy-proven invasive SCC. The odds ratio from the fully adjusted model predicting SCC was 4.4(95% confidence interval: 2.4-8.2). Higher scores on the visual analog scale (VAS) for pain were associated witha greater likelihood for the presence of SCC compared to none or mild pain. The for scores on the VAS from 1to 3, 4 to 6 and 7 to 10 were 4.9 (2.2-10.5), 2.3 (0.96-5.5)and 16.5 (3.6-75.8), respectively. Pain is the most powerful patient-reported warning signal for invasive cutaneous SCC in OTR. Empowerment of patients by education could accelerate diagnosis and treatment of cutaneous SCC.
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- 2014
41. Activation of Nrf2 in keratinocytes causes chloracne (MADISH)-like skin disease in mice
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Svitlana Kurinna, Sabine Werner, Aaron J. Huebner, Florian Gruber, Andrea S. Link, Lutz Langbein, Dennis R. Roop, Hans-Dietmar Beer, Konrad Sandhoff, Hany Farwanah, Olivier Sorg, Erwin Tschachler, Jean-Hilaire Saurat, Alexandra Geusau, Ann-Helen Willrodt, Matthias Schäfer, Marlon R. Schneider, Wilhelm Bloch, University of Zurich, and Schäfer, Matthias
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Sebaceous gland ,Pathology ,medicine.medical_specialty ,Hyperkeratosis ,610 Medicine & health ,Mice, Transgenic ,Biology ,digestive system ,environment and public health ,NF-E2-Related Factor 2/genetics/metabolism ,03 medical and health sciences ,Mice ,0302 clinical medicine ,Keratinocytes/metabolism ,Downregulation and upregulation ,medicine ,Animals ,Humans ,ddc:576 ,Cells, Cultured ,030304 developmental biology ,Secretory Leukocyte Peptidase Inhibitor/genetics/metabolism ,0303 health sciences ,integumentary system ,10177 Dermatology Clinic ,Acne ,Nrf2 ,Oxidative stress ,Skin ,Hair Follicle/metabolism ,respiratory system ,medicine.disease ,Hair follicle ,Chloracne/genetics/metabolism ,3. Good health ,Chloracne ,Disease Models, Animal ,medicine.anatomical_structure ,Hair loss ,Epigen ,1313 Molecular Medicine ,Molecular Medicine ,030217 neurology & neurosurgery ,SLPI ,Epigen/genetics/metabolism - Abstract
The transcription factor Nrf2 is a key regulator of the cellular stress response, and pharmacological Nrf2 activation is a promising strategy for skin protection and cancer prevention. We show here that prolonged Nrf2 activation in keratinocytes causes sebaceous gland enlargement and seborrhea in mice due to upregulation of the growth factor epigen, which we identified as a novel Nrf2 target. This was accompanied by thickening and hyperkeratosis of hair follicle infundibula. These abnormalities caused dilatation of infundibula, hair loss, and cyst development upon aging. Upregulation of epigen, secretory leukocyte peptidase inhibitor (Slpi), and small proline‐rich protein 2d (Sprr2d) in hair follicles was identified as the likely cause of infundibular acanthosis, hyperkeratosis, and cyst formation. These alterations were highly reminiscent to the phenotype of chloracne/“metabolizing acquired dioxin‐induced skin hamartomas” (MADISH) patients. Indeed, SLPI, SPRR2, and epigen were strongly expressed in cysts of MADISH patients and upregulated by dioxin in human keratinocytes in an NRF2‐dependent manner. These results identify novel Nrf2 activities in the pilosebaceous unit and point to a role of NRF2 in MADISH pathogenesis. ISSN:1757-4676 ISSN:1757-4684
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- 2014
42. Severe 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) intoxication: clinical and laboratory effects
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Michael O. Sator, Alexandra Geusau, Klaus Geissler, Georg Stingl, Klaus Abraham, and Erwin Tschachler
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Adult ,Male ,Sucrose ,medicine.medical_specialty ,Polychlorinated Dibenzodioxins ,Gastrointestinal Diseases ,Health, Toxicology and Mutagenesis ,Bioinformatics ,Retinoids ,Acneiform Eruptions ,Occupational Exposure ,Internal medicine ,medicine ,Humans ,heterocyclic compounds ,Fat Substitutes ,Amenorrhea ,reproductive and urinary physiology ,Clinical Laboratory Techniques ,business.industry ,Fatty Acids ,Public Health, Environmental and Occupational Health ,Tetrachlorodibenzo-p-dioxin ,stomatognathic diseases ,Endocrinology ,Austria ,Textile Industry ,Environmental Pollutants ,Female ,Dermatologic Agents ,business ,Research Article - Abstract
A variety of health effects have been attributed to 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), but little information is available on the course of a verified high-level TCDD intoxication. In this paper we describe two cases of heavy intoxication with TCDD and present a 2-year follow-up including clinical, biochemical, hematologic, endocrine, and immunologic parameters monitored in two women, 30 and 27 years of age, who suffered from chloracne due to TCDD intoxication of unknown origin. Patient 1, who had the highest TCDD level ever recorded in an individual (144,000 pg/g blood fat), developed severe generalized chloracne, whereas in the second patient, despite heavy intoxication (26,000 pg/g blood fat), only mild facial acne lesions occurred. Both patients initially experienced nonspecific gastrointestinal symptoms. In Patient 1 we observed a moderate elevation of blood lipids, leukocytosis, anemia, and secondary amenorrhoea. The laboratory parameters in Patient 2 were all normal. Despite the high TCDD levels, apart from chloracne, only few clinical and biochemical health effects were observed within the first 2 years after TCDD intoxication.
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- 2001
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43. Cutaneous Dendritic Cells Are Main Targets in Acute HIV-1-Infection
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Wolfgang Jurecka, Ingrid Simonitsch, Andreas Chott, and Alexandra Geusau
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Adult ,Keratinocytes ,Male ,Pathology ,medicine.medical_specialty ,HIV Antigens ,Mucocutaneous zone ,HIV Infections ,HIV Antibodies ,Antiviral Agents ,Pathology and Forensic Medicine ,Antigen ,HIV Seropositivity ,medicine ,Humans ,Cytotoxic T cell ,Homosexuality, Male ,Histiocyte ,biology ,medicine.diagnostic_test ,Reverse Transcriptase Polymerase Chain Reaction ,CD68 ,Exanthema ,Immunohistochemistry ,Granzyme ,Langerhans Cells ,Acute Disease ,Immunology ,Skin biopsy ,HIV-1 ,biology.protein ,Drug Therapy, Combination ,CD8 - Abstract
Acute human immunodeficiency virus (HIV) infection is a transient illness that typically presents with mucocutaneous and constitutional symptoms. It is soon followed by seroconversion with the detection of anti-HIV antibodies in the peripheral blood. To better understand the pathogenetic events leading to this clinical picture, we sought to investigate the (immuno)histologic features of the skin rash occurring in an acutely infected person. A skin biopsy of an acutely infected person was investigated histologically and immunohistologically using paraffin-embedded tissue sections. Interface dermatitis with pronounced vacuolization of the basal keratinocytes was a prominent histological finding. The inflammatory infiltrate was composed of CD3+/CD8+ T cells with coexpression of Granzyme B7 and TIA-1, and CD68+ histiocytes/dendritic cells. CD1a+ intraepidermal Langerhans cells (LC) were significantly decreased and individual LC co-expressed HIV-p24 antigens as evidenced in double labeling experiments. HIV-infected LC were demonstrated in close apposition to cytotoxic T cells. This study provides the first definitive evidence for infection of LC at extramucosal sites in this very early stage of disease. Our findings emphasize the critical role of dendritic cells as a virus reservoir and the skin as a major site of HIV replication during the course of the disease.
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- 2000
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44. Keratinocytes Express the CD146 (Muc18/S-Endo) Antigen in Tissue Culture and During Inflammatory Skin Diseases11This work was supported by a grant from the Austrian Science Foundation (Grant P01437-MED)
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Michael Mildner, Jozef Ban, Gottfried Bayer, Adrian Tanew, Christoph Mayer, Michael Rendl, Alexandra Geusau, Erwin Tschachler, Wolfgang Weninger, and Otto Majdic
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Pathology ,medicine.medical_specialty ,skin cancer ,Cell adhesion molecule ,psoriasis ,Cell Biology ,Dermatology ,Biology ,Biochemistry ,Molecular biology ,adhesion ,HaCaT ,Tissue culture ,Interleukin 20 ,medicine.anatomical_structure ,inflammation ,Cell culture ,medicine ,Immunoglobulin superfamily ,CD146 ,Keratinocyte ,Molecular Biology - Abstract
The CD146 (or MUC18/MEL-CAM) antigen is a cell adhesion molecule of the immunoglobulin superfamily. Besides in melanoma, expression of CD146 antigen has been demonstrated in breast epithelia and hair follicles. We studied its expression by human keratinocytes in culture as well as in neoplastic and inflammatory skin diseases. Staining of primary cultured keratinocytes revealed expression of CD146 on the cell membrane, preferentially on cell–cell contact sites. Western blot analysis of keratinocytes detected a band of ≈113 kDa, corresponding to the CD146 protein. In contrast to primary keratinocytes, neither CD146 protein nor mRNA expression was found in the keratinocyte-derived cell lines A431 and HaCaT. Treatment of keratinocytes with the proinflammatory cytokines interleukin-1 and interleukin-6, tumor necrosis factor-α, and interferon-γ, resulted in no change of CD146 expression and incubation with phorbol 12-myristate 13-acetate led to a reduction of CD146 on keratinocytes. By contrast, when culturing keratinocytes in medium devoid of growth supplements, a distinct upregulation was observed as compared with culture in fully supplemented medium. In normal human epidermis expression of the CD146 antigen was not detectable. It was strongly upregulated, however, on suprabasal keratinocytes in psoriasis, in lichen planus, in the epidermis overlying skin neoplasms, and in viral warts. In squamous cell carcinomas and basal cell carcinomas only a minority of tumor cells expressed CD146. Our findings suggest that the CD146 antigen represents an activation marker of keratinocytes and may be involved in cutaneous inflammatory tissue reaction.
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- 2000
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45. Cryptococcal cellulitis in a lung-transplant recipient
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Kathrin Tintelnot, E. Messeritsch, Elisabeth Presterl, N. Sandor, P. Jaksch, and Alexandra Geusau
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medicine.medical_specialty ,business.industry ,Cellulitis ,medicine ,Lung transplant recipient ,Dermatology ,Intensive care medicine ,medicine.disease ,business - Published
- 2005
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46. Enhanced therapy for primary and secondary syphilis: a longitudinal retrospective analysis of cure rates and associated factors
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Alexandra Geusau, Julia Tittes, Lukasz Antoniewicz, and Maximilian C. Aichelburg
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Adult ,Male ,medicine.medical_specialty ,Dose ,medicine.drug_class ,Antibiotics ,Dermatology ,Secondary syphilis ,Disease ,Drug Administration Schedule ,Serology ,Age Distribution ,Internal medicine ,HIV Seronegativity ,Benzathine penicillin g ,HIV Seropositivity ,medicine ,Humans ,Pharmacology (medical) ,Longitudinal Studies ,Syphilis ,Treponema pallidum ,Retrospective Studies ,Bacterial disease ,Dose-Response Relationship, Drug ,business.industry ,Public Health, Environmental and Occupational Health ,medicine.disease ,Anti-Bacterial Agents ,Syphilis Serodiagnosis ,Infectious Diseases ,Treatment Outcome ,Immunology ,HIV-1 ,Penicillin G Benzathine ,Female ,business - Abstract
For the treatment of early infectious syphilis, enhanced therapy with three dosages of benzathine penicillin G has been under consideration, particularly in the human immunodeficiency virus type 1 infected population (HIV-1). The serological outcome of 249 patients with primary and secondary syphilis treated with standard or enhanced therapy was analyzed retrospectively; 98% (139/142) achieved serological cure with a single dosage and 92% with enhanced therapy ( P = 0.033). In HIV-1 infected individuals, cure rates were 88% after a single dosage compared to 97% after three dosages ( P = 0.18). A fourfold decrease of Venereal Disease Research Laboratory (VDRL) titres was achieved within a median of 102 days after treatment initiation (SD = 2; 95% CI = 98–106). Patients aged over 40 years were 5.5 times (OR = 5.52; 95% CI = 1.43–21.32; P = 0.013) and patients with low baseline VDRL titres (≤1 : 32) were 4 times (OR = 4.25; 95% CI = 1.21–14.87; P = 0.024) more likely to experience serological failure.
- Published
- 2013
47. Primary Cutaneous Posttransplant Lymphoproliferative Disorders in Solid Organ Transplant Recipients: A Multicenter European Case Series
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Emmanuel Laffitte, Sylvie Euvrard, Catherine A. Harwood, Stéphane Barete, Carlos Ferrándiz, Camille Francès, G. M. Murphy, S. Cooper, Deniz Seçkin, A. T. Güleç, Céleste Lebbé, Mauro Alaibac, V. Del Marmol, Günther F.L. Hofbauer, J.N. Bouwes Bavinck, E. Durukan, C. Mørk, Alexandra Geusau, Werner Kempf, P. Cetkovská, I. Ali, Charlotte M. Proby, and Jean Kanitakis
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Male ,Pathology ,medicine.medical_specialty ,Lymphomatoid granulomatosis ,Skin Neoplasms ,CD30 ,Population ,immunosuppressant therapy ,Lymphoproliferative disorders ,Gastroenterology ,Mycosis Fungoides ,Postoperative Complications ,Risk Factors ,hemic and lymphatic diseases ,Internal medicine ,medicine ,Immunology and Allergy ,Humans ,Pharmacology (medical) ,education ,Retrospective Studies ,Transplantation ,education.field_of_study ,Mycosis fungoides ,B cell ,skin cancer ,business.industry ,organ transplantation ,International Agencies ,Middle Aged ,medicine.disease ,Prognosis ,posttransplant lymphoproliferative disorder ,Lymphoproliferative Disorders ,Lymphoma, T-Cell, Cutaneous ,CD30 positive lymphoma ,Survival Rate ,posttransplant lymphoma ,Female ,business ,Diffuse large B-cell lymphoma ,Plasmablastic lymphoma ,Follow-Up Studies - Abstract
Primary cutaneous posttransplant lymphoproliferative disorders (PTLD) are rare. This retrospective, multicenter study of 35 cases aimed to better describe this entity. Cases were (re)-classified according to the WHO-EORTC or the WHO 2008 classifications of lymphomas. Median interval between first transplantation and diagnosis was 85 months. Fifty-seven percent of patients had a kidney transplant. Twenty-four cases (68.6%) were classified as primary cutaneous T cell lymphoma (CTCL) and 11 (31.4%) as primary cutaneous B cell PTLD. Mycosis fungoides (MF) was the most common (50%) CTCL subtype. Ten (90.9%) cutaneous B cell PTLD cases were classified as EBV-associated B cell lymphoproliferations (including one plasmablastic lymphoma and one lymphomatoid granulomatosis) and one as diffuse large B cell lymphoma, other, that was EBV-negative. Sixteen (45.7%) patients died after a median follow-up of 19.5 months (11 [68.8%] with CTCL [6 of whom had CD30(+) lymphoproliferative disorders (LPD)] and 5 [31.2%] with cutaneous B cell PTLD. Median survival times for all patients, CTCL and cutaneous B cell PTLD subgroups were 93, 93, and 112 months, respectively. Survival rates for MF were higher than those for CD30(+) LPD. The spectrum of primary CTCL in organ transplant recipients (OTR) is similar to that in the general population. The prognosis of posttransplant primary cutaneous CD30(+) LPD is worse than posttransplant MF and than its counterpart in the immunocompetent population. EBV-associated cutaneous B cell LPD predominates in OTR.
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- 2013
48. Sexuell übertragene Infektionen (STI)
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Stefan Esser, Helmut Schöfer, Alexander Kreuter, Gerd Gauglitz, and Alexandra Geusau
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business.industry ,Medicine ,business - Published
- 2013
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49. 19 Sexuell übertragbare Erkrankungen
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Georg Stary and Alexandra Geusau
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- 2012
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50. Syphilis
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Alexandra Geusau
- Published
- 2012
- Full Text
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