1
|
Dittmar DJ, Pielmeier F, Strieder N, Fischer A, Herbst M, Stanewsky H, Wenzl N, Röseler E, Eder R, Gebhard C, Schwarzfischer-Pfeilschifter L, Albrecht C, Herr W, Edinger M, Hoffmann P, Rehli M. Donor regulatory T cells rapidly adapt to recipient tissues to control murine acute graft-versus-host disease. Nat Commun 2024; 15:3224. [PMID: 38622133 PMCID: PMC11018811 DOI: 10.1038/s41467-024-47575-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 04/02/2024] [Indexed: 04/17/2024] Open
Abstract
The adoptive transfer of regulatory T cells is a promising strategy to prevent graft-versus-host disease after allogeneic bone marrow transplantation. Here, we use a major histocompatibility complex-mismatched mouse model to follow the fate of in vitro expanded donor regulatory T cells upon migration to target organs. Employing comprehensive gene expression and repertoire profiling, we show that they retain their suppressive function and plasticity after transfer. Upon entering non-lymphoid tissues, donor regulatory T cells acquire organ-specific gene expression profiles resembling tissue-resident cells and activate hallmark suppressive and cytotoxic pathways, most evidently in the colon, when co-transplanted with graft-versus-host disease-inducing conventional T cells. Dominant T cell receptor clonotypes overlap between organs and across recipients and their relative abundance correlates with protection efficacy. Thus, this study reveals donor regulatory T cell selection and adaptation mechanisms in target organs and highlights protective features of Treg to guide the development of improved graft-versus-host disease prevention strategies.
Collapse
Affiliation(s)
- David J Dittmar
- Department of Internal Medicine III, University Hospital Regensburg, 93053, Regensburg, Germany
- BioNTech SE, 82061, Neuried, Germany
| | - Franziska Pielmeier
- Department of Internal Medicine III, University Hospital Regensburg, 93053, Regensburg, Germany
| | | | - Alexander Fischer
- Department of Internal Medicine III, University Hospital Regensburg, 93053, Regensburg, Germany
| | - Michael Herbst
- Department of Internal Medicine III, University Hospital Regensburg, 93053, Regensburg, Germany
- Institute of Experimental Immunology, Research Unit Tumorimmunology, University of Zurich, Zurich, Switzerland
| | - Hanna Stanewsky
- Department of Internal Medicine III, University Hospital Regensburg, 93053, Regensburg, Germany
| | - Niklas Wenzl
- Leibniz Institute for Immunotherapy, 93053, Regensburg, Germany
| | - Eveline Röseler
- Leibniz Institute for Immunotherapy, 93053, Regensburg, Germany
| | - Rüdiger Eder
- Department of Internal Medicine III, University Hospital Regensburg, 93053, Regensburg, Germany
| | - Claudia Gebhard
- Leibniz Institute for Immunotherapy, 93053, Regensburg, Germany
| | | | - Christin Albrecht
- Department of Internal Medicine III, University Hospital Regensburg, 93053, Regensburg, Germany
| | - Wolfgang Herr
- Department of Internal Medicine III, University Hospital Regensburg, 93053, Regensburg, Germany
| | - Matthias Edinger
- Department of Internal Medicine III, University Hospital Regensburg, 93053, Regensburg, Germany.
- Leibniz Institute for Immunotherapy, 93053, Regensburg, Germany.
| | - Petra Hoffmann
- Department of Internal Medicine III, University Hospital Regensburg, 93053, Regensburg, Germany.
- Leibniz Institute for Immunotherapy, 93053, Regensburg, Germany.
| | - Michael Rehli
- Department of Internal Medicine III, University Hospital Regensburg, 93053, Regensburg, Germany.
- Leibniz Institute for Immunotherapy, 93053, Regensburg, Germany.
| |
Collapse
|
2
|
Koerber SA, Höcht S, Aebersold D, Albrecht C, Boehmer D, Ganswindt U, Schmidt-Hegemann NS, Hölscher T, Mueller AC, Niehoff P, Peeken JC, Pinkawa M, Polat B, Spohn SKB, Wolf F, Zamboglou C, Zips D, Wiegel T. Prostate cancer and elective nodal radiation therapy for cN0 and pN0-a never ending story? : Recommendations from the prostate cancer expert panel of the German Society of Radiation Oncology (DEGRO). Strahlenther Onkol 2024; 200:181-187. [PMID: 38273135 PMCID: PMC10876748 DOI: 10.1007/s00066-023-02193-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 12/17/2023] [Indexed: 01/27/2024]
Abstract
For prostate cancer, the role of elective nodal irradiation (ENI) for cN0 or pN0 patients has been under discussion for years. Considering the recent publications of randomized controlled trials, the prostate cancer expert panel of the German Society of Radiation Oncology (DEGRO) aimed to discuss and summarize the current literature. Modern trials have been recently published for both treatment-naïve patients (POP-RT trial) and patients after surgery (SPPORT trial). Although there are more reliable data to date, we identified several limitations currently complicating the definitions of general recommendations. For patients with cN0 (conventional or PSMA-PET staging) undergoing definitive radiotherapy, only men with high-risk factors for nodal involvement (e.g., cT3a, GS ≥ 8, PSA ≥ 20 ng/ml) seem to benefit from ENI. For biochemical relapse in the postoperative situation (pN0) and no PSMA imaging, ENI may be added to patients with risk factors according to the SPPORT trial (e.g., GS ≥ 8; PSA > 0.7 ng/ml). If PSMA-PET/CT is negative, ENI may be offered for selected men with high-risk factors as an individual treatment approach.
Collapse
Affiliation(s)
- S A Koerber
- Department of Radiation Oncology, Barmherzige Brüder Hospital Regensburg, Prüfeninger Straße 86, 93049, Regensburg, Germany.
- Department of Radiation Oncology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.
| | - S Höcht
- Department of Radiation Oncology, Ernst von Bergmann Hospital Potsdam, Charlottenstraße 72, 14467, Potsdam, Germany
| | - D Aebersold
- Department of Radiation Oncology, Inselspital-Bern University Hospital, University of Bern, Freiburgstraße 4, 3010, Bern, Switzerland
| | - C Albrecht
- Nordstrahl Radiation Oncology Unit, Nürnberg North Hospital, Prof.-Ernst-Nathan-Str. 1, 90149, Nürnberg, Germany
| | - D Boehmer
- Department of Radiation Oncology, University Hospital Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - U Ganswindt
- Department of Radiation Oncology, University Hospital Innsbruck, Anichstraße 35, 6020, Innsbruck, Austria
| | - N-S Schmidt-Hegemann
- Department of Radiation Oncology, University Hospital, LMU Munich, Marchioninistraße 15, 81377, Munich, Germany
| | - T Hölscher
- Department of Radiotherapy and Radiation Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, TU Dresden, Fiedlerstraße 19, 01307, Dresden, Germany
| | - A-C Mueller
- Department of Radiation Oncology, RKH Hospital Ludwigsburg, Posilipostraße 4, 71640, Ludwigsburg, Germany
| | - P Niehoff
- Department of Radiation Oncology, Sana Hospital Offenbach, Starkenburgring 66, 63069, Offenbach, Germany
| | - J C Peeken
- Department of Radiation Oncology, Technische Universität München, Ismaninger Straße 22, 81675, Munich, Germany
| | - M Pinkawa
- Department of Radiation Oncology, Robert Janker Klinik, Villenstraße 8, 53129, Bonn, Germany
| | - B Polat
- Department of Radiation Oncology, University Hospital Würzburg, Josef-Schneider-Straße 11, 97080, Würzburg, Germany
| | - S K B Spohn
- Department of Radiation Oncology, University Hospital Freiburg, Robert-Koch-Straße 3, 79106, Freiburg, Germany
| | - F Wolf
- Department of Radiation Oncology, Paracelsus Medical University of Salzburg, Müllner Hauptstraße 48, 5020, Salzburg, Austria
| | - C Zamboglou
- Department of Radiation Oncology, University Hospital Freiburg, Robert-Koch-Straße 3, 79106, Freiburg, Germany
- German Oncology Center, 1, Nikis Avenue, Agios Athanasios, 4108, Limassol, Cyprus
| | - D Zips
- Department of Radiation Oncology, University Hospital Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - T Wiegel
- Department of Radiation Oncology, University Hospital Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| |
Collapse
|
3
|
Schreiber L, Ghimire S, Hiergeist A, Renner K, Althammer M, Babl N, Peuker A, Schoenhammer G, Hippe K, Gessner A, Albrecht C, Pielmeier F, Büttner-Herold M, Bruns H, Hoffmann P, Herr W, Holler E, Peter K, Kreutz M, Matos C. Strain specific differences in vitamin D3 response: impact on gut homeostasis. Front Immunol 2024; 15:1347835. [PMID: 38495883 PMCID: PMC10943696 DOI: 10.3389/fimmu.2024.1347835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 02/15/2024] [Indexed: 03/19/2024] Open
Abstract
Vitamin D3 regulates a variety of biological processes irrespective of its well-known importance for calcium metabolism. Epidemiological and animal studies indicate a role in immune regulation, intestinal barrier function and microbiome diversity. Here, we analyzed the impact of different vitamin D3- containing diets on C57BL/6 and BALB/c mice, with a particular focus on gut homeostasis and also investigated effects on immune cells in vitro. Weak regulatory effects were detected on murine T cells. By trend, the active vitamin D3 metabolite 1,25-dihydroxyvitamin D3 suppressed IFN, GM-CSF and IL-10 cytokine secretion in T cells of C57BL/6 but not BALB/c mice, respectively. Using different vitamin D3-fortified diets, we found a tissue-specific enrichment of mainly CD11b+ myeloid cells but not T cells in both mouse strains e.g. in spleen and Peyer's Patches. Mucin Reg3γ and Batf expression, as well as important proteins for gut homeostasis, were significantly suppressed in the small intestine of C57BL76 but not BALB/c mice fed with a high-vitamin D3 containing diet. Differences between both mouse stains were not completely explained by differences in vitamin D3 receptor expression which was strongly expressed in epithelial cells of both strains. Finally, we analyzed gut microbiome and again an impact of vitamin D3 was detected in C57BL76 but not BALB/c. Our data suggest strain-specific differences in vitamin D3 responsiveness under steady state conditions which may have important implications when choosing a murine disease model to study vitamin D3 effects.
Collapse
Affiliation(s)
- Laura Schreiber
- Department of Internal Medicine III, Hematology and Medical Oncology, University Hospital Regensburg, Regensburg, Germany
| | - Sakhila Ghimire
- Department of Internal Medicine III, Hematology and Medical Oncology, University Hospital Regensburg, Regensburg, Germany
| | - Andreas Hiergeist
- Institute of Clinical Microbiology and Hygiene, University Hospital Regensburg, Regensburg, Germany
| | - Kathrin Renner
- Department of Otorhinolaryngology, University Hospital Regensburg, Regensburg, Germany
| | - Michael Althammer
- Department of Internal Medicine III, Hematology and Medical Oncology, University Hospital Regensburg, Regensburg, Germany
| | - Nathalie Babl
- Department of Internal Medicine III, Hematology and Medical Oncology, University Hospital Regensburg, Regensburg, Germany
| | - Alice Peuker
- Department of Internal Medicine III, Hematology and Medical Oncology, University Hospital Regensburg, Regensburg, Germany
| | - Gabriele Schoenhammer
- Department of Internal Medicine III, Hematology and Medical Oncology, University Hospital Regensburg, Regensburg, Germany
| | - Katrin Hippe
- Department of Pathology, University of Regensburg, Regensburg, Germany
| | - Andre Gessner
- Institute of Clinical Microbiology and Hygiene, University Hospital Regensburg, Regensburg, Germany
| | | | | | - Maike Büttner-Herold
- Department of Nephropathology, Institute of Pathology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Heiko Bruns
- Department of Internal Medicine 5, Hematology and Oncology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Petra Hoffmann
- Leibniz Institute for Immunotherapy (LIT), Regensburg, Germany
| | - Wolfgang Herr
- Department of Internal Medicine III, Hematology and Medical Oncology, University Hospital Regensburg, Regensburg, Germany
| | - Ernst Holler
- Department of Internal Medicine III, Hematology and Medical Oncology, University Hospital Regensburg, Regensburg, Germany
| | - Katrin Peter
- Department of Internal Medicine III, Hematology and Medical Oncology, University Hospital Regensburg, Regensburg, Germany
| | - Marina Kreutz
- Department of Internal Medicine III, Hematology and Medical Oncology, University Hospital Regensburg, Regensburg, Germany
| | - Carina Matos
- Department of Internal Medicine III, Hematology and Medical Oncology, University Hospital Regensburg, Regensburg, Germany
| |
Collapse
|
4
|
Schneider L, Albrecht C, Grehn C, Gryc T, Knop S, Siegler G, Bott A, Rottmann M, Blos M, Linnemann U, Köhler J, Jakob J, Hohenberger P, Papadopoulos T, Meyer C, Mordstein V, B. Stein, Gazdag L, Reichert B, Augustin M. 1500P Radiochemotherapy with gemcitabine as a radiosensitizer in patients with soft tissue sarcomas. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
|
5
|
Rodríguez-Ruiz A, Mufari J, Albrecht C, Scilipoti J, Velez A. Hydroalcoholic extraction of bioactive compounds from expeller soybean meal under subcritical conditions. J Supercrit Fluids 2022. [DOI: 10.1016/j.supflu.2022.105558] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
6
|
Wilke L, Moustakis C, Blanck O, Albers D, Albrecht C, Avcu Y, Boucenna R, Buchauer K, Etzelstorfer T, Henkenberens C, Jeller D, Jurianz K, Kornhuber C, Kretschmer M, Lotze S, Meier K, Pemler P, Riegler A, Röser A, Schmidhalter D, Spruijt KH, Surber G, Vallet V, Wiehle R, Willner J, Winkler P, Wittig A, Guckenberger M, Tanadini-Lang S. Improving interinstitutional and intertechnology consistency of pulmonary SBRT by dose prescription to the mean internal target volume dose. Strahlenther Onkol 2021; 197:836-846. [PMID: 34196725 PMCID: PMC8397670 DOI: 10.1007/s00066-021-01799-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 05/10/2021] [Indexed: 11/16/2022]
Abstract
Purpose Dose, fractionation, normalization and the dose profile inside the target volume vary substantially in pulmonary stereotactic body radiotherapy (SBRT) between different institutions and SBRT technologies. Published planning studies have shown large variations of the mean dose in planning target volume (PTV) and gross tumor volume (GTV) or internal target volume (ITV) when dose prescription is performed to the PTV covering isodose. This planning study investigated whether dose prescription to the mean dose of the ITV improves consistency in pulmonary SBRT dose distributions. Materials and methods This was a multi-institutional planning study by the German Society of Radiation Oncology (DEGRO) working group Radiosurgery and Stereotactic Radiotherapy. CT images and structures of ITV, PTV and all relevant organs at risk (OAR) for two patients with early stage non-small cell lung cancer (NSCLC) were distributed to all participating institutions. Each institute created a treatment plan with the technique commonly used in the institute for lung SBRT. The specified dose fractionation was 3 × 21.5 Gy normalized to the mean ITV dose. Additional dose objectives for target volumes and OAR were provided. Results In all, 52 plans from 25 institutions were included in this analysis: 8 robotic radiosurgery (RRS), 34 intensity-modulated (MOD), and 10 3D-conformal (3D) radiation therapy plans. The distribution of the mean dose in the PTV did not differ significantly between the two patients (median 56.9 Gy vs 56.6 Gy). There was only a small difference between the techniques, with RRS having the lowest mean PTV dose with a median of 55.9 Gy followed by MOD plans with 56.7 Gy and 3D plans with 57.4 Gy having the highest. For the different organs at risk no significant difference between the techniques could be found. Conclusions This planning study pointed out that multiparameter dose prescription including normalization on the mean ITV dose in combination with detailed objectives for the PTV and ITV achieve consistent dose distributions for peripheral lung tumors in combination with an ITV concept between different delivery techniques and across institutions. Supplementary Information The online version of this article (10.1007/s00066-021-01799-w) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- L Wilke
- Klinik für Radio-Onkologie, Universitätsspital Zürich, Zürich, Switzerland.
| | - C Moustakis
- Klinik für Strahlentherapie, Universitätsklinikum Münster, Münster, Germany
| | - O Blanck
- Klinik für Strahlentherapie, Universitätsklinikum Schleswig-Holstein - Campus Kiel, Kiel, Germany
| | - D Albers
- Klinik für Strahlentherapie und Radioonkologie, Universtitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
| | - C Albrecht
- CyberKnife Centrum Süd, Schwarzwald-Baar Klinikum Villingen-Schwenningen, Villingen-Schwenningen, Germany
| | - Y Avcu
- Klinik für Strahlentherapie und Radioonkologie, Universitätsspital Basel, Basel, Switzerland
| | - R Boucenna
- Institut de radio-oncologie, Hislanden Lausanne, Lausanne, Switzerland
| | - K Buchauer
- Klinik für Radio-Onkologie, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - T Etzelstorfer
- Radio-Onkologie, Ordensklinikum Linz Barmherzige Schwestern, Linz, Austria
| | - C Henkenberens
- Klinik für Strahlentherapie und Spezielle Onkologie, Medizinische Hochschule Hannover, Hannover, Germany
| | - D Jeller
- Radio-Onkologie, Kantonsspital Luzern, Luzern, Switzerland
| | - K Jurianz
- MVZ Gamma-Knife Zentrum Krefeld, Krefeld, Germany
| | - C Kornhuber
- Klinik für Strahlentherapie, Universitätsklinikum Halle, Halle, Germany
| | | | - S Lotze
- Klinik für Radioonkologie und Strahlentherapie, Uniklinik RWTH Aachen, Aachen, Germany
| | - K Meier
- Strahlentherapie, Klinikum Wolfsburg, Wolfsburg, Germany
| | - P Pemler
- Klinik für Radioonkologie, Stadtspital Triemli, Zürich, Switzerland
| | - A Riegler
- Institut für Radioonkologie und Strahlentherapie, Landesklinikum Wiener Neustadt, Wiener Neustadt, Austria
| | - A Röser
- Strahlentherapie und Radio-Onkologie, Helios Universitätsklinikum Wuppertal, Wuppertal, Germany
| | - D Schmidhalter
- Division of Medical Radiation Physics and Department of Radiation Oncology, Inselspital, Bern, Switzerland.,University Hospital, and University of Bern, Bern, Switzerland
| | - K H Spruijt
- Institut de radio-oncologie, Clinique des Grangettes, Geneva, Switzerland
| | - G Surber
- Institut für Radiochirurgie und Präzisionsbestrahlung, CyberKnife Centrum Mitteldeutschland, Erfurt, Germany
| | - V Vallet
- Service de radio-oncologie, Centre hospitalier universitaire vaudois, Lausanne, Switzerland
| | - R Wiehle
- Klinik für Strahlenheilkunde, Universitätsklinikum Freiburg, Freiburg, Germany
| | - J Willner
- Klinik für Strahlentherapie, Klinikum Bayreuth, Bayreuth, Germany
| | - P Winkler
- Universitätsklinik für Strahlentherapie-Radioonkologie, LKH-Univ. Klinikum Graz, Graz, Austria
| | - A Wittig
- Departent of Radiotherapy and Radiation Oncology, University Hospital Jena, Friedrich-Schiller-University Jena, Jena, Germany
| | - M Guckenberger
- Klinik für Radio-Onkologie, Universitätsspital Zürich, Zürich, Switzerland
| | - S Tanadini-Lang
- Klinik für Radio-Onkologie, Universitätsspital Zürich, Zürich, Switzerland
| |
Collapse
|
7
|
Pirbhai M, Albrecht C, Tirrell C. A multispectral-sensor-based colorimetric reader for biological assays. Rev Sci Instrum 2021; 92:064103. [PMID: 34243509 DOI: 10.1063/5.0040602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 05/27/2021] [Indexed: 06/13/2023]
Abstract
Tests that depend on changes in color are commonly used in biosensing. Here, we report on a colorimetric reader for such applications. The device is simple to construct and operate, making it ideal for research laboratories with limited resources or skilled personnel. It consists of a commercial multispectral sensor interfaced with a Raspberry Pi and a touchscreen. Unlike camera-based readers, this instrument requires no calibration of wavelengths by the user or extensive image processing to obtain results. We demonstrate its potential for colorimetric biosensing by applying it to the birefringent enzyme-linked immunosorbent assay. It was able to prevent certain false positives that the assay is susceptible to and lowered its limit of detection for glucose by an order of magnitude.
Collapse
Affiliation(s)
- M Pirbhai
- Department of Physics, St. Lawrence University, 23 Romoda Dr., Canton, New York 13617, USA
| | - C Albrecht
- Department of Physics, University of Oregon, 1585 E 13th Ave., Eugene, Oregon 97403, USA
| | - C Tirrell
- Department of Physics, St. Lawrence University, 23 Romoda Dr., Canton, New York 13617, USA
| |
Collapse
|
8
|
Tischer T, Bebersdorf A, Albrecht C, Manhart J, Büttner A, Öner A, Safak E, Ince H, Ortak J, Caglayan E. Deactivation of cardiovascular implantable electronic devices in patients nearing end of life : Reality or only recommendation? Herz 2019; 45:123-129. [PMID: 31312871 DOI: 10.1007/s00059-019-4836-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 05/23/2019] [Accepted: 06/21/2019] [Indexed: 11/27/2022]
Abstract
BACKGROUND Current guidelines recommend considering deactivation of cardiac implantable electronic devices (CIEDs) in patients nearing death. We evaluated the implementation of this recommendation in unselected deceased individuals with CIEDs. METHODS Over a 7-month period in 2016, all deceased persons taken to the Rostock crematorium were prospectively screened for CIEDs and these were interrogated in situ. Pacing rate, pacing mode, and lead output were documented as well as patient data including location and time of death. In implantable cardioverter-defibrillators (ICDs), tachycardia therapy adjustment and occurrence of shocks 24 h prior to death were also recorded. RESULTS We examined 2297 subjects, of whom 154 (6.7%) had CIEDs. Of these subjects, 125 (100%) pacemakers (PMs) and 27 (96.4%) ICDs were eligible for analysis. Death in persons with ICDs occurred most frequently in hospital (55.6%), while this was less frequently the case for individuals with PMs (43.2%). Furthermore, 33.3% of subjects with ICDs and 18.5% with PMs died in palliative care units (PCU). Shock therapies were switched off in three (60%) individuals with ICDs who died in the PCU, whereas antibradycardia therapy was not withdrawn in any PM patient in the PCU. Therapy withdrawal occurred in two patients with PMs (1.3%) who died in hospital. Patients with PMs had high ventricular pacing rates at the last interrogation (69 ± 36.0%) and often suffered atrioventricular block (39.2%). Six (25%) of the 24 active ICDs presented shocks near the time of death. CONCLUSION Many CIED patients died in hospital; nonetheless, in practice, CIED deactivation near death is rarely performed and might be less feasible in subjects with PMs. However, there is still a need to consider deactivation, especially in individuals with ICDs, as one fourth of them received at least one shock within 24 h prior to death.
Collapse
Affiliation(s)
- T Tischer
- Department of Cardiology, University Hospital, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany.
| | - A Bebersdorf
- Department of Cardiology, University Hospital, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany
| | - C Albrecht
- Department of Cardiology, University Hospital, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany
| | - J Manhart
- Institute of Legal Medicine, Rostock University Medical Center, Rostock, Germany
| | - A Büttner
- Institute of Legal Medicine, Rostock University Medical Center, Rostock, Germany
| | - A Öner
- Department of Cardiology, University Hospital, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany
| | - E Safak
- Department of Cardiology, Vivantes Klinikum im Friedrichshain und Am Urban, Berlin, Germany
| | - H Ince
- Department of Cardiology, University Hospital, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany
| | - J Ortak
- Department of Cardiology, Vivantes Klinikum im Friedrichshain und Am Urban, Berlin, Germany
| | - E Caglayan
- Department of Cardiology, University Hospital, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany
| |
Collapse
|
9
|
Westerink R, Albrecht C, Sofranko A, Stahlmecke B, Breitenstein D, Pijnenburg D, Bokkers B, Schins R, Heusinkveld H. N3RvousSystem: A 3R systems biology strategy for human neurotoxicity hazard, risk and safety assessment. Toxicol Lett 2018. [DOI: 10.1016/j.toxlet.2018.06.1124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
10
|
Tischer T, Bebersdorf A, Albrecht C, Manhart J, Caglayan E, Öner A, Ince H, Ortak J, Büttner A, Safak E. Individual programming of current multiprogrammable pacemakers : Still unsatisfactory? Herz 2018; 45:572-579. [PMID: 30255303 DOI: 10.1007/s00059-018-4753-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 08/22/2018] [Accepted: 08/24/2018] [Indexed: 11/25/2022]
Abstract
BACKGROUND Pacemaker (PM) technology has developed tremendously in recent decades. We evaluated the extent of individual programming in current PMs. METHODS Over a 7-month period in 2016, all deceased persons taken to the Rostock crematorium were prospectively screened for cardiac implantable electronic devices (CIEDs) and these were interrogated in situ. Programming of patient data, leads, and study parameters including mode, lower rate, upper tracking or sensor rate (UTSR), ventricular refractory time, sleeping function, hysteresis, and PM-mediated tachycardia intervention were analyzed and compared with delivery settings. Alterations in atrial/ventricular capture management and atrial/ventricular sensing assurance as well as changes in sensitivity and lead output were evaluated. RESULTS We examined 2297 subjects, of whom 154 (6.7%) had CIEDs, with 125 (81.2%) being PMs. Finally, 72 (57.6%) PMs were eligible for analysis with an operation time of 31.0 ± 27.0 months. We excluded 28 (18.2%) implantable cardioverter defibrillators (ICDs), 51 (41%) PMs presenting elective replacement indicator (ERI), two (1.6%) PMs with programming to insufficient function prior to death, and the left ventricle parameter of one (1.4%) cardiac resynchronization therapy pacemaker (CRT-P); further one CIED (0.6%) was not contactable. PMs offered in mean 75.2% of study parameters thereof 88.0% were to adjust manually, whereof 49.3% stayed unchanged to delivery mode. Lead output, UTSR, lower rate, and mode were the most frequently changed parameters (>85.7%, 65.3%, 54.2%, and 52.8%, respectively) compared with unmodified ventricular refractory time and hysteresis (91.7% and. 85.4%, respectively); 2.8% of PMs had out-of-the-box settings. The most frequent personalized data were last (88.9%) and first name (73.6%), while atrial and ventricular serial lead numbers were rarely entered (18.2% and 23.4%, respectively). CONCLUSION The programming possibilities of PMs have advanced greatly. Nonetheless, improvements in individual PM programming are still needed as demonstrated by the findings in this study, e.g., PMs with manufacturer settings and lack of individual data.
Collapse
Affiliation(s)
- T Tischer
- Department of Cardiology, University Hospital Rostock, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany.
| | - A Bebersdorf
- Department of Cardiology, University Hospital Rostock, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany
| | - C Albrecht
- Department of Cardiology, University Hospital Rostock, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany
| | - J Manhart
- Institute of Legal Medicine, Rostock University Medical Center, Rostock, Germany
| | - E Caglayan
- Department of Cardiology, University Hospital Rostock, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany
| | - A Öner
- Department of Cardiology, University Hospital Rostock, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany
| | - H Ince
- Department of Cardiology, University Hospital Rostock, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany
| | - J Ortak
- Department of Cardiology, Vivantes Klinikum im Friedrichshain und Am Urban, Berlin, Germany
| | - A Büttner
- Institute of Legal Medicine, Rostock University Medical Center, Rostock, Germany
| | - E Safak
- Department of Cardiology, Vivantes Klinikum im Friedrichshain und Am Urban, Berlin, Germany
| |
Collapse
|
11
|
Hanssen-Doose A, Albrecht C, Schmidt SCE, Woll A, Worth A. Quantitative und qualitative Merkmale des Schulsports in Deutschland im Zusammenhang mit der Gesundheit der Schülerinnen und Schüler. Ger J Exerc Sport Res 2018. [DOI: 10.1007/s12662-018-0542-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
12
|
Albrecht C, Cassee F, Schins RPF. Untersuchungen zur Wirkung von Umweltpartikeln auf das zentrale Nervensystem nach Inhalation in verschiedenen Nagermodellen. Pneumologie 2018. [DOI: 10.1055/s-0038-1660917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- C Albrecht
- IUF – Leibniz-Institut für umweltmedizinische Forschung Düsseldorf
| | - F Cassee
- National Institute for Public Health and the Environment, Bilthoven, The Netherlands
- Institute of Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - RPF Schins
- IUF – Leibniz-Institut für umweltmedizinische Forschung Düsseldorf
| |
Collapse
|
13
|
Wilke L, Blanck O, Albrecht C, Avcu Y, Boucenna R, Buchauer K, Etzelstorfer T, Henkenberens C, Jellner D, Jurianz K, Kornhuber C, Lotze S, Meier K, Pemler P, Riegler A, Röser A, Schmidhalter D, Spruijt K, Surber G, Vallet V, Wiehle R, Willner J, Winkler P, Wittig A, Moustakis C. OC-0416: Can a consistent dose to the target volume in SBRT be obtained by prescribing on the mean ITV dose? Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)30726-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
14
|
Miller M, Sahin U, Derhovanessian E, Kloke BP, Simon P, Bukur V, Albrecht C, Paruzynski A, Löwer M, Kuhn A, Schreeb K, Attig S, Brueck AK, Bolte S, Grabbe S, Höller C, Utikal J, Huber C, Loquai C, Türeci Ö. IVAC MUTANOME: A first-in-human phase I clinical trial targeting individual mutant neoantigens for the treatment of melanoma. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx712.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
15
|
|
16
|
Sarganas G, Schaffrath Rosario A, Albrecht C, Woll A, Neuhauser H. Tracking of blood pressure in children and adolescents in Germany in the context of risk factors for hypertension. Das Gesundheitswesen 2017. [DOI: 10.1055/s-0037-1605847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- G Sarganas
- Robert Koch-Institut, Abteilung Epidemiologie und Gesundheitsmonitoring, Berlin
- DZHK (German Center for Cardiovascular Research), partner site Berlin, Berlin
| | | | - C Albrecht
- Karlsruhe Institute of Technology, Department of Sports and Sports Science, Karlsruhe
| | - A Woll
- Karlsruhe Institute of Technology, Department of Sports and Sports Science, Karlsruhe
| | - H Neuhauser
- Robert Koch-Institut, Abteilung Epidemiologie und Gesundheitsmonitoring, Berlin
- DZHK (German Center for Cardiovascular Research), partner site Berlin, Berlin
| |
Collapse
|
17
|
Kirchhoff KN, Hauffe T, Stelbrink B, Albrecht C, Wilke T. Evolutionary bottlenecks in brackish water habitats drive the colonization of fresh water by stingrays. J Evol Biol 2017; 30:1576-1591. [DOI: 10.1111/jeb.13128] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 05/05/2017] [Accepted: 05/31/2017] [Indexed: 02/05/2023]
Affiliation(s)
- K. N. Kirchhoff
- Department of Animal Ecology and Systematics; Justus Liebig University Giessen; Giessen Germany
| | - T. Hauffe
- Department of Animal Ecology and Systematics; Justus Liebig University Giessen; Giessen Germany
| | - B. Stelbrink
- Department of Animal Ecology and Systematics; Justus Liebig University Giessen; Giessen Germany
| | - C. Albrecht
- Department of Animal Ecology and Systematics; Justus Liebig University Giessen; Giessen Germany
| | - T. Wilke
- Department of Animal Ecology and Systematics; Justus Liebig University Giessen; Giessen Germany
| |
Collapse
|
18
|
Gross JJ, Schwinn AC, Schmitz-Hsu F, Menzi F, Drögemüller C, Albrecht C, Bruckmaier RM. Rapid Communication: Cholesterol deficiency-associated APOB mutation impacts lipid metabolism in Holstein calves and breeding bulls. J Anim Sci 2017; 94:1761-6. [PMID: 27136033 DOI: 10.2527/jas.2016-0439] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
During the last months, the number of reports on Holstein calves suffering from incurable idiopathic diarrhea dramatically increased. Affected calves showed severe hypocholesterolemia and mostly died within days up to a few months after birth. This new autosomal monogenic recessive inherited fat metabolism disorder, termed cholesterol deficiency (CD), is caused by a loss of function mutation of the bovine gene. The objective of the present study was to investigate specific components of lipid metabolism in 6 homozygous for the mutation (CDS) and 6 normal Holstein calves with different genotypes. Independent of sex, CDS had significantly lower plasma concentrations of total cholesterol (TC), free cholesterol (FC), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), very-low-density lipoprotein cholesterol (VLDL-C), triacylglycerides (TAG), and phospholipids (PL) compared with homozygous wild-type calves ( < 0.05). Furthermore, we studied the effect of the genotype on cholesterol metabolism in adult Holstein breeding bulls of Swissgenetics. Among a total of 254 adult males, the homozygous mutant genotype was absent, 36 bulls were heterozygous carriers (CDC), and 218 bulls were homozygous wild-type (CDF). In CDC bulls, plasma concentrations of TC, FC, HDL-C, LDL-C, VLDL-C, TAG, and PL were lower compared with CDF bulls ( < 0.05). The ratios of FC:cholesteryl esters (CE) and FC:TC were higher in CDC bulls compared with CDF bulls, whereas the ratio of CE:TC was lower in CDC bulls compared with CDF bulls ( < 0.01). In conclusion, the CD-associated mutation was shown to affect lipid metabolism in affected Holstein calves and adult breeding bulls. Besides cholesterol, the concentrations of PL, TAG, and lipoproteins also were distinctly reduced in homozygous and heterozygous carriers of the mutation. Beyond malabsorption of dietary lipids, deleterious effects of apolipoprotein B deficiency on hepatic lipid metabolism, steroid biosynthesis, and cell membrane function can be expected, which may result in unspecific symptoms of reduced fertility, growth, and health.
Collapse
|
19
|
Mohaupt M, Klossner R, Scaife P, Eisele N, Kurlak L, Gennari-Moser C, Albrecht C, Mohaupt J, Mistry H. Cultured trophoblasts are salt-sensitive with Na+ and Cl- transporters differentially expressed in placenta and kidney of rats upon salt exposure. Geburtshilfe Frauenheilkd 2017. [DOI: 10.1055/s-0037-1600059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Affiliation(s)
- M Mohaupt
- Sonnenhof, Innere Medizin, Bern, Schweiz
| | - R Klossner
- Sonnenhof, Innere Medizin, Bern, Schweiz
| | - P Scaife
- Universität Nottingham, Kinderklinik, Geburtshilfe und Gynäkologie, Nottingham, Vereinigtes Königreich
| | - N Eisele
- Universität Bern, Abteilung Klinische Forschung, Bern, Schweiz
| | - L Kurlak
- Universität Nottingham, Kinderklinik, Geburtshilfe und Gynäkologie, Nottingham, Vereinigtes Königreich
| | - C Gennari-Moser
- Universität Bern, Abteilung Klinische Forschung, Bern, Schweiz
| | - C Albrecht
- Universität Bern, Institut für Biochemie und Molekulare Medizin, Bern, Schweiz
| | - J Mohaupt
- Universität Nottingham, Kinderklinik, Geburtshilfe und Gynäkologie, Nottingham, Vereinigtes Königreich
| | - H Mistry
- Universität Nottingham, Kinderklinik, Geburtshilfe und Gynäkologie, Nottingham, Vereinigtes Königreich
| |
Collapse
|
20
|
Miranda AR, Albrecht C, Soria EA. [Analysis of tissue bioavailability of total polyphenols by Folin Ciocalteu and Fast Blue BB techniques in organs of BALB/C/c mice]. Rev Fac Cien Med Univ Nac Cordoba 2017; 74:119-125. [PMID: 28657530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023] Open
Abstract
UNLABELLED Biomedical potential of polyphenols lies in their ability to modulate redox balance and the mechanisms involved in the development of chronic noncommunicable diseases. OBJECTIVE The aim of this study was to determine the concentration of total polyphenols in different murine organs by assaying analytical techniques of Folin Ciocalteu (FC) and Fast Blue BB (FBBB). METHOD Balb/c female mice (n≥3) received for 15 days 100 mg/kg/d of extract of Lantana grisebachii (LG), Aspidosperma quebracho-blanco (AQB) or Ilex paraguariensis (IP) and control group (treated with water without extract). Polyphenolic concentrations were measured in telencephalon, diencephalon, midbrain, brainstem, cerebellum, spleen, thymus and cardiopulmonary tissue by FC and FBBB methods. Results were compared by ANOVA followed by Tukey test (p<0.05). RESULTS FBBB method reported higher detections than FC (4.5 fold in telencephalon, 8.4 in midbrain, 5 in brainstem, 7.2 in spleen, 68.5 in thymus and 4 in cardiopulmonary tissue). Regarding the treatments, the group that received AQB showed to have increased polyphenolic bioavailability in brainstem (p<0.02). With FBBB, a decrease on thymic polyphenol content after treatment with IP was detected (p<0.005). In cerebellum of the groups treated with IP and telencephalon of the control group showed significant differences when these were analyzed with FC (p<0.05, p<0.0035 respectively). CONCLUSIONS FBBB method showed higher estimations of polyphenolic bioavailability than FC, and this could be related to higher specificity of the technique to react with phenolic compounds.
Collapse
Affiliation(s)
- A R Miranda
- Instituto de Investigaciones en Ciencias de la Salud, Universidad Nacional de Córdoba, CONICET, FCM (Enrique Barros, Ciudad Universitaria, CP 5014), Córdoba, Argentina
- Instituto Nacional del Cáncer, Ministerio de Salud de la Nación (Av. Julio A. Roca 781 10°, CABA), Buenos Aires, Argentina. Autor de correspondencia
| | - C Albrecht
- Instituto de Investigaciones en Ciencias de la Salud, Universidad Nacional de Córdoba, CONICET, FCM (Enrique Barros, Ciudad Universitaria, CP 5014), Córdoba, Argentina
- Instituto Nacional del Cáncer, Ministerio de Salud de la Nación (Av. Julio A. Roca 781 10°, CABA), Buenos Aires, Argentina. Autor de correspondencia
| | - E A Soria
- Instituto de Investigaciones en Ciencias de la Salud, Universidad Nacional de Córdoba, CONICET, FCM (Enrique Barros, Ciudad Universitaria, CP 5014), Córdoba, Argentina
| |
Collapse
|
21
|
Gross JJ, Schwinn AC, Schmitz-Hsu F, Menzi F, Drögemüller C, Albrecht C, Bruckmaier RM. 1084 Cholesterol deficiency associated APOB mutation affects lipid metabolism in Holstein cattle. J Anim Sci 2016. [DOI: 10.2527/jam2016-1084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
22
|
Albrecht C, Hanssen-Doose A, Oriwol D, Bös K, Worth A. Beeinflusst eine Veränderung des BMI die Entwicklung der motorischen Leistungsfähigkeit im Kindes- und Jugendalter? Ergebnisse der Motorik-Modul Studie (MoMo). B & G 2016. [DOI: 10.1055/s-0042-112632] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- C. Albrecht
- Pädagogische Hochschule Karlsruhe, Institut für Bewegungserziehung und Sport, Arbeitsbereich Bewegungsbildung, Diagnostik und Sport
| | - A. Hanssen-Doose
- Pädagogische Hochschule Karlsruhe, Institut für Bewegungserziehung und Sport, Arbeitsbereich Bewegungsbildung, Diagnostik und Sport
| | - D. Oriwol
- Pädagogische Hochschule Karlsruhe, Institut für Bewegungserziehung und Sport, Arbeitsbereich Bewegungsbildung, Diagnostik und Sport
| | - K. Bös
- Karlsruher Institut für Technologie, Institut für Sport und Sportwissenschaft
| | - A. Worth
- Pädagogische Hochschule Karlsruhe, Institut für Bewegungserziehung und Sport, Arbeitsbereich Bewegungsbildung, Diagnostik und Sport
| |
Collapse
|
23
|
Boots AW, Veith C, Berlo DV, Schooten FJV, Bast A, Rosenbruch M, Schins RPF, Albrecht C. Untersuchungen zum diätetischen Einsatz von Quercetin zur Beeinflussung der Redox-Imbalance im Bleomycin-indizierten murinen Fibrosemodell. Pneumologie 2016. [DOI: 10.1055/s-0036-1584380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
24
|
Albrecht C, Caniggia I, Clifton V, Göhner C, Harris L, Hemmings D, Jawerbaum A, Johnstone E, Jones H, Keelan J, Lewis R, Mitchell M, Murthi P, Powell T, Saffery R, Smith R, Vaillancourt C, Wadsack C, Salomon C. IFPA meeting 2015 workshop report III: nanomedicine applications and exosome biology, xenobiotics and endocrine disruptors and pregnancy, and lipid. Placenta 2016; 48 Suppl 1:S12-S16. [PMID: 27094788 DOI: 10.1016/j.placenta.2016.01.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 12/29/2015] [Accepted: 01/04/2016] [Indexed: 11/29/2022]
Abstract
Workshops are an important part of the IFPA annual meeting, as they allow for discussion of specialized topics. At the IFPA meeting 2015 there were twelve themed workshops, three of which are summarized in this report. These workshops were related to various aspects of placental biology but collectively covered areas of pregnancy pathologies and placental metabolism: 1) nanomedicine applications and exosome biology; 2) xenobiotics and endocrine disruptors and pregnancy; 3) lipid mediators and placental function.
Collapse
Affiliation(s)
- C Albrecht
- Institute of Biochemistry and Molecular Medicine, University of Bern, Switzerland
| | - I Caniggia
- Lunenfeld-Tanenbaum Research Institute, Toronto, Ontario, Canada
| | - V Clifton
- Mater Research, Matter Hospital, Brisbane, Australia
| | - C Göhner
- University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | | | - D Hemmings
- University of Alberta, Edmonton, Alberta, Canada
| | - A Jawerbaum
- University of Buenos Aires, Buenos Aires, Argentina
| | | | - H Jones
- Cincinnati Children's Hospital Medical Center, Cincinnati, USA
| | - J Keelan
- The University of Western Australia, Perth, WA, Australia
| | - R Lewis
- University of Southampton, UK
| | - M Mitchell
- UQ Centre for Clinical Research, The University of Queensland, Australia
| | - P Murthi
- Department of Medicine, Monash University, Clayton Victoria 3168, Australia
| | - T Powell
- University of Colorado Anschutz Medical Campus, Denver, CO, USA
| | - R Saffery
- Murdoch Childrens Research Institute, Department of Paediatrics, University of Melbourne, Australia
| | - R Smith
- The Mothers and Babies Research Centre, University of Newcastle, Australia
| | - C Vaillancourt
- INRS Institut Armand Frappier, Université du Québec, Canada
| | - C Wadsack
- Medical University of Graz, Graz, Austria
| | - C Salomon
- Exosome Biology Laboratory, Center for Clinical Diagnostics, UQ Centre for Clinical Research, Faculty of Medicine + Biomedical Sciences, The University of Queensland, Australia.
| |
Collapse
|
25
|
Saßmann H, Albrecht C, Busse-Widmann P, Hevelke LK, Kranz J, Markowitz JT, Marshall LF, Meurs S, de Soye IH, Lange K. Psychometric properties of the German version of the Diabetes Eating Problem Survey-Revised: additional benefit of disease-specific screening in adolescents with Type 1 diabetes. Diabet Med 2015; 32:1641-7. [PMID: 25919651 DOI: 10.1111/dme.12788] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/23/2015] [Indexed: 12/15/2022]
Abstract
AIM To examine the psychometric properties of the German version of the abbreviated 16-item Diabetes Eating Problem Survey-Revised in a sample of young people with Type 1 diabetes. METHODS A total of 246 young people, aged 11-19 years, with Type 1 diabetes from six pediatric diabetes centres in Germany were assessed using the Diabetes Eating Problem Survey-Revised. In addition, they underwent screening with two generic tools as well as the WHO five-question well-being index. A clinician's report was also obtained. RESULTS The Diabetes Eating Problem Survey-Revised was found to have good internal consistency (Cronbach's α = 0.84). The Diabetes Eating Problem Survey-Revised scores significantly correlated with those provided by the non-specific screening tools (r = 0.37, P ≤ 0.000 and r = 0.50, P ≤ 0.000 for boys and r = 0.62, P ≤ 0.000 and r = 0.79, P ≤ 0.000 for girls), indicating convergent validity. The mean (sd) total of the scores was 12.0 (9.6). Criterion validity was confirmed against HbA1c value, BMI standard deviation score and expert (clinician) report. Of the boys included in the study, 11 scored higher than the threshold score on the Diabetes Eating Problem Survey-Revised, of whom only three (27%) were classified as 'suspected to have a disordered eating behaviour' by their clinicians. CONCLUSIONS The Diabetes Eating Problem Survey-Revised delivered more specific information than generic screening instruments and identified more young people with eating disorders than did clinician report, especially regarding the detection of boys at risk. The results of this study support the utility of the German version of the Diabetes Eating Problem Survey-Revised to identify eating disorders in young people with Type 1 diabetes at an early stage. (German Clinical Trials Registry no.: DRKS00004699).
Collapse
Affiliation(s)
- H Saßmann
- Hannover Medical School, Medical Psychology, Hannover, Germany
| | - C Albrecht
- Clinical Centre Augsburg, Clinic for Children and Juveniles, Bunter Kreis GmbH, Team Diabetes, Augsburg, Germany
| | - P Busse-Widmann
- Dritter Orden Clinic Munich, Paediatric and Youth Medicine Clinic, Munich, Germany
| | - L K Hevelke
- Hannover Medical School, Medical Psychology, Hannover, Germany
| | - J Kranz
- University of Tübingen, Children's Hospital, Department III, Tübingen, Germany
| | - J T Markowitz
- Joslin Diabetes Center, Pediatric, Adolescent, and Young Adult Section, Boston, MA, USA
| | - L F Marshall
- University Medical Centre Schleswig Holstein Lübeck, Hospital for Child and Adolescent Medicine, Lübeck, Germany
| | - S Meurs
- Children's Hospital Passau Dritter Orden, Social Paediatric Centre, Passau, Germany
| | - I H de Soye
- Clinical Centre Nürnberg Süd, Children's Hospital, Nürnberg, Germany
| | - K Lange
- Hannover Medical School, Medical Psychology, Hannover, Germany
| |
Collapse
|
26
|
Baumann M, Marini C, Lüscher B, Jörger-Messerli M, Albrecht C, Huang X, Hediger M, Surbek D. Plazentares Glukose-Transportsystem bei normalen Schwangerschaften und Präeklampsie. Z Geburtshilfe Neonatol 2015. [DOI: 10.1055/s-0035-1566530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
27
|
Amylidi S, Baumann M, Albrecht C, Hediger M, Surbek D. Plazentarer Harnsäuretransport bei Präeklampsie. Z Geburtshilfe Neonatol 2015. [DOI: 10.1055/s-0034-1375745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
28
|
Hevelke LK, Albrecht C, Busse-Widmann P, Kranz J, Lange K, Markowitz JT, Marshall LF, Meurs S, de Soye IH, Saßmann H. Prävalenz gestörten Essverhaltens bei Jugendlichen mit Diabetes Typ 1 Erfassungsmöglichkeiten und Vergleich zu stoffwechselgesunden Jugendlichen – Ergebnisse einer multizentrischen Fragebogenstudie. DIABETOL STOFFWECHS 2015. [DOI: 10.1055/s-0035-1549644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
29
|
Schonfeld SJ, Winde F, Albrecht C, Kielkowski D, Liefferink M, Patel M, Sewram V, Stoch L, Whitaker C, Schüz J. Health effects in populations living around the uraniferous gold mine tailings in South Africa: gaps and opportunities for research. Cancer Epidemiol 2014; 38:628-32. [PMID: 25023081 DOI: 10.1016/j.canep.2014.06.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Revised: 06/17/2014] [Accepted: 06/17/2014] [Indexed: 10/25/2022]
Affiliation(s)
- S J Schonfeld
- International Agency for Research on Cancer (IARC), Section of Environment and Radiation, Lyon, France.
| | - F Winde
- Mine Water Re-search Group, North West University, Vaal Campus, South Africa
| | - C Albrecht
- Cancer Association of South Africa, Cape Town, South Africa
| | - D Kielkowski
- National Cancer Registry, National Institute of Occupational Health, Johannesburg, South Africa
| | - M Liefferink
- Federation for a Sustainable Environment, Johannesburg, South Africa
| | - M Patel
- Chris Hani Baragwanath Academic Hospital, Department of Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - V Sewram
- African Cancer Institute, Cape Town, South Africa; Cancer Research Initiative of South Africa, Durban, South Africa
| | - L Stoch
- Mine Water Re-search Group, North West University, Vaal Campus, South Africa
| | - C Whitaker
- Cancer Research Initiative of South Africa, Durban, South Africa
| | - J Schüz
- International Agency for Research on Cancer (IARC), Section of Environment and Radiation, Lyon, France
| |
Collapse
|
30
|
Dumusc SD, Ontsouka EC, Schnyder M, Hartnack S, Albrecht C, Bruckmaier RM, Burgener IA. Cyclooxygenase-2 and 5-lipoxygenase in dogs with chronic enteropathies. J Vet Intern Med 2014; 28:1684-91. [PMID: 25269796 PMCID: PMC4895633 DOI: 10.1111/jvim.12463] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2013] [Revised: 05/12/2014] [Accepted: 08/25/2014] [Indexed: 01/20/2023] Open
Abstract
Background Cyclooxygenase‐2 (COX‐2) is a key enzyme in the synthesis of pro‐inflammatory prostaglandins and 5‐lipoxygenase (5‐LO) is the major source of leukotrienes. Their role in IBD has been demonstrated in humans and animal models, but not in dogs with chronic enteropathies (CCE). Hypothesis COX‐2 and 5‐LO are upregulated in dogs with CCE. Animals Fifteen healthy control dogs (HCD), 10 dogs with inflammatory bowel disease (IBD), and 15 dogs with food‐responsive diarrhea (FRD). Methods Prospective study. mRNA expression of COX‐2, 5‐LO, IL‐1b, IL‐4, IL‐6, TNF, IL‐10 and TFG‐β was evaluated by quantitative real‐time RT‐PCR in duodenal and colonic biopsies before and after treatment. Results COX‐2 expression in the colon was significantly higher in IBD and FRD before and after treatment (all P < .01). IL‐1b was higher in FRD in the duodenum after treatment (P = .021). TGF‐β expression was significantly higher in the duodenum of HCD compared to FRD/IBD before treatment (both P < .001) and IBD after treatment (P = .012). There were no significant differences among groups and within groups before and after treatment for IL‐4, IL‐6, TNF, and IL‐10. There was a significant correlation between COX‐2 and IL‐1b in duodenum and colon before treatment in FRD and IBD, whereas 5‐LO correlated better with IL‐6 and TNF. IL‐10 and TGF‐β usually were correlated. Conclusions and Clinical Importance COX‐2 is upregulated in IBD and FRD, whereas IL‐1b and TGF‐β seem to be important pro‐ and anti‐inflammatory cytokines, respectively. The use of dual COX/5‐LO inhibitors could be an interesting alternative in the treatment of CCE.
Collapse
Affiliation(s)
- S D Dumusc
- Division of Small Animal Internal Medicine, University of Bern, Bern, Switzerland
| | | | | | | | | | | | | |
Collapse
|
31
|
Canalis AM, Cittadini MC, Albrecht C, Soria EA. In vivo redox effects of Aspidosperma quebracho-blanco Schltdl., Lantana grisebachii Stuck and Ilex paraguariensis A. St.-Hil. on blood, thymus and spleen of mice. Indian J Exp Biol 2014; 52:882-889. [PMID: 25241588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Argentinian native plants Aspidosperma quebracho-blanco, Lantana grisebachii and Ilex paraguariensis are known to have antiinflammatory and antioxidant properties. We demonstrated it in vivo by the redox changes in murine hemolymphatic tissues after infusive extract intake of these plants as revealed in organic trophism, tissue phenolics, hydroperoxides, superoxide, nitrites and gamma-glutamyltranspeptidase in thymus, blood and spleen. A. quebracho-blanco reduced hydroperoxidation in blood and spleen of both sexes, with gamma-glutamyltranspeptidase negativization in lymphatic organs and thymic nitrosative up-regulation. Males have shown increased phenolic content in blood after treatment. L. grisebachii and I. paraguariensis treatment exhibited incomplete antioxidation and oxidative induction in the studied tissues. Different results according to sex were found in redox response to phenolics and their kinetics, with males showing antioxidant effects, whereas females showed oxidative susceptibility. A. quebracho-blanco exhibited protection of murine tissues against oxidation in both sexes and modulation of their trophism, supporting its therapeutic uses in inflammatory diseases. Also, gender had significant influence in phenolic biodistribution and redox response.
Collapse
|
32
|
Kessler EC, Gross JJ, Bruckmaier RM, Albrecht C. Cholesterol metabolism, transport, and hepatic regulation in dairy cows during transition and early lactation. J Dairy Sci 2014; 97:5481-90. [PMID: 24952770 DOI: 10.3168/jds.2014-7926] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Accepted: 05/07/2014] [Indexed: 11/19/2022]
Abstract
The transition from the nonlactating to the lactating state represents a critical period for dairy cow lipid metabolism because body reserves have to be mobilized to meet the increasing energy requirements for the initiation of milk production. The purpose of this study was to provide a comprehensive overview on cholesterol homeostasis in transition dairy cows by assessing in parallel plasma, milk, and hepatic tissue for key factors of cholesterol metabolism, transport, and regulation. Blood samples and liver biopsies were taken from 50 multiparous Holstein dairy cows in wk 3 antepartum (a.p.), wk 1 postpartum (p.p.), wk 4 p.p., and wk 14 p.p. Milk sampling was performed in wk 1, 4, and 14 p.p. Blood and milk lipid concentrations [triglycerides (TG), cholesterol, and lipoproteins], enzyme activities (phospholipid transfer protein and lecithin:cholesterol acyltransferase) were analyzed using enzymatic assays. Hepatic gene expression patterns of 3-hydroxy-3-methylglutaryl-coenzyme A (HMGC) synthase 1 (HMGCS1) and HMGC reductase (HMGCR), sterol regulatory element-binding factor (SREBF)-1 and -2, microsomal triglyceride transfer protein (MTTP), ATP-binding cassette transporter (ABC) A1 and ABCG1, liver X receptor (LXR) α and peroxisome proliferator activated receptor (PPAR) α and γ were measured using quantitative RT-PCR. Plasma TG, cholesterol, and lipoprotein concentrations decreased from wk 3 a.p. to a minimum in wk 1 p.p., and then gradually increased until wk 14 p.p. Compared with wk 4 p.p., phospholipid transfer protein activity was increased in wk 1 p.p., whereas lecithin:cholesterol acyltransferase activity was lowest at this period. Total cholesterol concentration and mass, and cholesterol concentration in the milk fat fraction decreased from wk 1 p.p. to wk 4 p.p. Both total and milk fat cholesterol concentration were decreased in wk 4 p.p. compared with wk 1 and 14 p.p. The mRNA abundance of genes involved in cholesterol synthesis (SREBF-2, HMGCS1, and HMGCR) markedly increased from wk 3 a.p. to wk 1 p.p., whereas SREBF-1 was downregulated. The expression of ABCA1 increased from wk 3 a.p. to wk 1 p.p., whereas ABCG1 was increased in wk 14 p.p. compared with other time points. In conclusion, hepatic expression of genes involved in the biosynthesis of cholesterol as well as the ABCA1 transporter were upregulated at the onset of lactation, whereas plasma concentrations of total cholesterol, phospholipids, lipoprotein-cholesterol, and TG were at a minimum. Thus, at the gene expression level, the liver seems to react to the increased demand for cholesterol after parturition. Whether the low plasma cholesterol and TG levels are due to impaired hepatic export mechanisms or reflect an enhanced transfer of these compounds into the milk to provide essential nutrients for the newborn remains to be elucidated.
Collapse
Affiliation(s)
- E C Kessler
- Veterinary Physiology, Vetsuisse Faculty, University of Bern, CH-3012 Bern, Switzerland
| | - J J Gross
- Veterinary Physiology, Vetsuisse Faculty, University of Bern, CH-3012 Bern, Switzerland
| | - R M Bruckmaier
- Veterinary Physiology, Vetsuisse Faculty, University of Bern, CH-3012 Bern, Switzerland
| | - C Albrecht
- Institute of Biochemistry and Molecular Medicine, University of Bern, CH-3012 Bern, Switzerland; Swiss National Center of Competence in Research (NCCR) TransCure, University of Bern, CH-3012 Bern, Switzerland.
| |
Collapse
|
33
|
Albrecht C, Boots AW, Hullmann M, Berlo DV, Schooten FJV, Bast A, Schins RPF. Pulmonale Effekte von Kohlenstoff-Nanoröhrchen in Mäusen mit fehlendem Antioxidanz-regulierendem Transkriptionsfaktor Nrf2. Pneumologie 2014. [DOI: 10.1055/s-0034-1376380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
34
|
Cittadini MC, Canalis AM, Albrecht C, Soria EA. Effects of oral phytoextract intake on phenolic concentration and redox homeostasis in murine encephalic regions. Nutr Neurosci 2014; 18:316-22. [DOI: 10.1179/1476830514y.0000000130] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
35
|
Amylidi SK, Baumann M, Albrecht C, Hediger M, Surbek D. Plazentarer Harnsäuretransport bei Präeklampsie. Z Geburtshilfe Neonatol 2013. [DOI: 10.1055/s-0033-1361247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
36
|
Pellarín MG, Albrecht C, Rojas MJ, Aguilar JJ, Konigheim BS, Paraje MG, Albesa I, Eraso AJ. Inhibition of cytotoxicity of Shiga toxin of Escherichia coli O157:H7 on vero cells by Prosopis alba Griseb (Fabaceae) and Ziziphus mistol Griseb (Rhamnaceae) extracts. J Food Prot 2013; 76:1733-9. [PMID: 24112573 DOI: 10.4315/0362-028x.jfp-13-087] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The capacity of Prosopis alba Griseb. and Ziziphus mistol Griseb. fruit extracts to inhibit the toxic action of Shiga toxin (Stx) was investigated. Purification of Stx from Escherichia coli O157:H7 was performed by saline precipitation and affinity chromatography using a column with globotriaosylceramide, while the fruits were subjected to ethanolic or aqueous extractions. The protective action of both fruits was determined by pre-, co-, and postincubation of one 50% cytotoxic dose per ml of Stx with different concentrations of ethanolic and aqueous extracts in confluent monolayers of Vero cells for 72 h at 37°C (5% CO2). The inhibition of the cytotoxic effect of Stx by fruit extracts was determined by the neutral red vital staining technique. The extraction of the polyphenols and flavonoids was effective, and more polyphenols per milligram of dissolved solids were obtained from P. alba than from Z. mistol. However, there were more flavonoids in Z. mistol than in P. alba. Components of both fruits increased the viability of cells treated with Stx when the extracts were preincubated with Stx for 1 h before being applied to the cell cultures, with the ethanolic extract of P. alba showing 95% cell viability at a concentration of 2.45 mg/ml. The extracts were less effective in protecting cells when Stx, extracts, and cells were coincubated together without a previous incubation of Stx; only the concentrations of 19.46 mg/ml for the P. alba aqueous extract and 3.75 mg/ml for the Z. mistol ethanolic extract resulted in the inhibition of cytotoxicity, with 52 and 56% cell viability occurring, respectively. Investigation into this difference in the protection of cells indicated that the protein molecule of Stx suffered degradation to advanced oxidative protein products during preincubation with extracts, principally with P. alba, which exhibited a greater amount of nonflavonoid polyphenols than Z. mistol. The prooxidant action on Stx favored the cells and enhanced the protective action of both fruits.
Collapse
Affiliation(s)
- M G Pellarín
- Escuela de Nutrición, Facultad de Ciencias Médicas, Universidad Nacional de Córdoba, Enrique Barros s/n, Ciudad Universitaria, Córdoba, Argentina;,
| | | | | | | | | | | | | | | |
Collapse
|
37
|
Marini C, Lüscher B, Surbek D, Albrecht C, Hediger M, Baumann M. Regulation der Expression von receptor potential vanilloid 6 (TRPV6) in der Präeklampsie. Geburtshilfe Frauenheilkd 2013. [DOI: 10.1055/s-0033-1347731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
|
38
|
Götte M, Kesting S, Albrecht C, Worth A, Bös K, Boos J. MOON-test - determination of motor performance in the pediatric oncology. Klin Padiatr 2013; 225:133-7. [PMID: 23599231 DOI: 10.1055/s-0033-1343411] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
BACKGROUND Pediatric cancer patients suffer from various negative consequences due to the disease, the medical therapy and the inactivity during the intensive treatment. Only few studies have systematically identified the adverse effects of cancer on motor performance in childhood. METHODS To determine the motor performance of pediatric cancer patients, a motor performance test was developed which is applicable for this specific patient group. Eight test items with reference values for healthy children were merged to the MOON-test (test for motor performance in the oncology). RESULTS MOON was tested for feasibility and acceptance in 33 patients aged 4-18 years. Feasibility was confirmed for children with different types of cancer (hematological malignancies and solid tumors) and with amputation, endoprosthesis, during aplasia as well as reduced general condition. Furthermore the patients showed a broad acceptance. CONCLUSION Based on the study findings, the use of MOON-test as a standardized motor performance diagnostic tool in clinical routine of oncological acute clinics as well as rehabilitation clinics can be recommended.·
Collapse
Affiliation(s)
- M Götte
- Department of Pediatric Hematology and Oncology, University Hospital of Muenster, Germany
| | | | | | | | | | | |
Collapse
|
39
|
Nürnberger S, Meyer C, Ponomarev I, Barnewitz D, Resinger C, Klepal W, Albrecht C, Marlovits S. Equine articular chondrocytes on MACT scaffolds for cartilage defect treatment. Anat Histol Embryol 2013; 42:332-43. [PMID: 23323689 DOI: 10.1111/ahe.12018] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2012] [Accepted: 10/12/2012] [Indexed: 11/29/2022]
Abstract
Treatment of cartilage defects poses challenging problems in human and veterinary medicine, especially in horses. This study examines the suitability of applying scaffold materials similar to those used for human cartilage regeneration on equine chondrocytes. Chondrocytes gained from biopsies of the talocrural joint of three horses were propagated in 2D culture and grown on two different scaffold materials, hyaluronan (HYAFF®) and collagen (BioGide®), and evaluated by light and electron microscopy. The equine chondrocytes developed well in both types of materials. They were vital and physiologically highly active. On the surface of the scaffolds, they formed cell multilayers. Inside the hyaluronan web, the chondrocytes were regularly distributed and spanned the large scaffold fibre distances by producing their own matrix sheath. Half-circle-like depressions occasionally found in the cell membrane were probably related to movement on the flexible matrix sheath. Inside the dense collagen scaffold, only single cells were found. They passed through the scaffold strands by cell shape adaptation. This study showed that the examined scaffold materials can be used for equine chondrocyte cultivation. Chondrocytes tend to form multilayers on the surface of both, very dense and very porous scaffolds, and have strategies to span between and move in large gaps.
Collapse
Affiliation(s)
- S Nürnberger
- Department of Traumatology, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria; Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in AUVA Research Center, Donaueschingenstrasse 13, 1200, Vienna, Austria; Austrian Cluster for Tissue Regeneration, Donaueschingenstrasse 13, 1200, Vienna, Austria
| | | | | | | | | | | | | | | |
Collapse
|
40
|
van Berlo D, Clift MJD, Albrecht C, Schins RPF. Carbon nanotubes: an insight into the mechanisms of their potential genotoxicity. Swiss Med Wkly 2012; 142:w13698. [PMID: 23444280 DOI: 10.4414/smw.2012.13698] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
After the health catastrophe resulting from the widespread use of asbestos which was once hailed as a new miracle material, the increasing use of carbon nanotubes (CNTs) has spawned major concern due to their similarities in terms of size, shape and poor solubility. Assessment of genotoxicity has shown that CNTs can damage DNA in vitro and in vivo. The genotoxic potential of different CNT samples varies considerably, however, with negative findings reported in a number of studies, probably due to the enormous heterogeneity of CNTs. The observed spectrum of genotoxic effects shows similarities with those reported for asbestos fibres. Mutagenicity has been found in vivo but in bacterial assays both asbestos and CNTs have mostly tested negative. An overview of key experimental observations on CNT-induced genotoxicity is presented in the first half of this review. In the second part, the potential mechanisms of CNT-elicited genotoxicity are discussed. Whereas CNTs possess intrinsic ROS-scavenging properties they are capable of generating intracellular ROS upon interaction with cellular components, and can cause antioxidant depletion. These effects have been attributed to their Fenton-reactive metals content. In addition, CNTs can impair the functionality of the mitotic apparatus. A noteworthy feature is that frustrated phagocytosis, which is involved in asbestos-induced pathology, has been observed for specific CNTs as well. The involvement of other mechanisms generally implicated in particle toxicity, such as phagocyte activation and impairment of DNA repair, is largely unknown at present and needs further investigation.
Collapse
Affiliation(s)
- D van Berlo
- IUF - Leibniz Research Institute for Environmental Medicine, Germany.
| | | | | | | |
Collapse
|
41
|
Eisele N, Gennari-Moser C, Albrecht C, Baumann M, Surbek D, Mohaupt MG. PP010. Does aldosterone participate in placental angiogenesis via PLGF? Pregnancy Hypertens 2012; 2:245. [PMID: 26105333 DOI: 10.1016/j.preghy.2012.04.121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
INTRODUCTION Angiogenic signals are a vital signal of placental integrity. Aldosterone has recently been shown to enhance placental growth factor (PlGF) expression in the peripheral vasculature [1] and to promote trophoblast growth [2]. The plgf gene possesses a functional mineralocorticoid receptor responsive element in the promoter region. OBJECTIVES Thus, we hypothesized that aldosterone adapts placental angiogenesis to trophoblast growth by secreting PlGF. METHODS The human choriocarcinoma cell line BeWo and first and third trimester human primary trophoblasts cells were subjected to several syncytialization signals. Upon visual confirmation, the cultured cells were subjected to either control conditions, the known stimulator forskolin, and increasing amounts of aldosterone (10(-9) to 10(-6)M) with and without the competitive aldosterone receptor blocker spironolactone. After 6 and 24h of incubation, RNA and protein were extracted. PlGF transcripts were quantified by Taqman PCR normalized to several housekeeping genes. Protein expression was quantified by ELISA. RESULTS PlGF mRNA expression increased 3-fold with forskolin in BeWo cells. In this cell line, aldosterone could slightly stimulate PlGF production. In non-syncytialized primary human first trimester trophoblasts, aldosterone did not exert a specific effect. In contrast, the term primary human trophoblasts did respond with a 2.5-fold increase after incubation with aldosterone (10(-7)M) in the presence of forskolin to allow forming a syncytial layer. PlGF protein was already slightly upregulated following 6h of incubation with aldosterone. CONCLUSION We concluded that aldosterone does regulate PlGF expression in specified conditions during pregnancy. Inappropriately low aldosterone levels such as in preeclampsia might such not only compromise plasma volume and trophoblast growth but also placental vascularization and systemic PlGF availability. These observations merit further investigation.
Collapse
Affiliation(s)
- N Eisele
- Klinik für Nephrologie/Hypertonie, Universität Bern, Switzerland
| | - C Gennari-Moser
- Klinik für Nephrologie/Hypertonie, Universität Bern, Switzerland
| | - C Albrecht
- Institute of Biochemistry and Molecular Medicine, Switzerland
| | - M Baumann
- Division of Obstetrics, University Women's Hospital Bern, Switzerland
| | - D Surbek
- Division of Obstetrics, University Women's Hospital Bern, Switzerland
| | - M G Mohaupt
- Klinik für Nephrologie/Hypertonie, Inselspital, Universität Bern, Bern, Switzerland
| |
Collapse
|
42
|
Albrecht C, Boots AW, Wilhelmi V, Kolling J, Hullmann M, Hellack B, van Berlo D, Bast A, Schins RPF. Pulmonale und systemische Effekte von Kohlenstoff-Nanoröhrchen nach pharyngealer Aspiration in die Mauslunge. Pneumologie 2012. [DOI: 10.1055/s-0032-1313581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
43
|
Räber C, Kolling C, Albrecht C, Born R, Schwyzer HK, Marks M. Objektive und subjektive Kurzzeitergebnisse von Patienten nach Schulterarthroplastik. physioscience 2012. [DOI: 10.1055/s-0032-1312735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- C. Räber
- Abt. für Physiotherapie, Fachbereich Obere Extremitäten, Schulthess Klinik, Zürich, Schweiz
| | - C. Kolling
- Abt. für Forschung und Entwicklung, Schulthess Klinik, Zürich, Schweiz
| | - C. Albrecht
- Abt. für Physiotherapie, Fachbereich Obere Extremitäten, Schulthess Klinik, Zürich, Schweiz
| | - R. Born
- Abt. für Physiotherapie, Fachbereich Obere Extremitäten, Schulthess Klinik, Zürich, Schweiz
| | - H.-K. Schwyzer
- Abt. Obere Extremitäten, Schulthess Klinik, Zürich, Schweiz
| | - M. Marks
- Abt. für Forschung und Entwicklung, Schulthess Klinik, Zürich, Schweiz
| |
Collapse
|
44
|
Baumann M, Lüscher B, Messerli M, Tschopp F, Albrecht C, Hediger M, Müller M, Surbek D. Glukosetransporter-9-Expression in plazentarem Gewebe. Z Geburtshilfe Neonatol 2012. [DOI: 10.1055/s-0032-1309124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
45
|
Acharya G, Albrecht C, Benton SJ, Cotechini T, Dechend R, Dilworth MR, Duttaroy AK, Grotmol T, Heazell AE, Jansson T, Johnstone ED, Jones HN, Jones RL, Lager S, Laine K, Nagirnaja L, Nystad M, Powell T, Redman C, Sadovsky Y, Sibley C, Troisi R, Wadsack C, Westwood M, Lash GE. IFPA Meeting 2011 workshop report I: Placenta: Predicting future health; roles of lipids in the growth and development of feto-placental unit; placental nutrient sensing; placental research to solve clinical problems--a translational approach. Placenta 2011; 33 Suppl:S4-8. [PMID: 22154691 DOI: 10.1016/j.placenta.2011.11.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2011] [Revised: 11/17/2011] [Accepted: 11/18/2011] [Indexed: 10/14/2022]
Abstract
Workshops are an important part of the IFPA annual meeting as they allow for discussion of specialized topics. At IFPA meeting 2011 there were twelve themed workshops, four of which are summarized in this report. These workshops related to both basic science and clinical research into placental growth and nutrient sensing and were divided into 1) placenta: predicting future health; 2) roles of lipids in the growth and development of feto-placental unit; 3) placental nutrient sensing; 4) placental research to solve clinical problems: a translational approach.
Collapse
Affiliation(s)
- G Acharya
- Women's Health & Perinatology Research Group, Department of Clinical Medicine, Faculty of Health Sciences, University of Tromsø, Tromsø, Norway
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
46
|
Baumann MU, Messerli M, Tschopp F, Albrecht C, Hediger M, Surbek DV. Glukosetransporter–9-Expression in plazentarem Gewebe. Z Geburtshilfe Neonatol 2011. [DOI: 10.1055/s-0031-1293339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
|
47
|
Albrecht C, Tichy B, Nürnberger S, Hosiner S, Zak L, Aldrian S, Marlovits S. Gene expression and cell differentiation in matrix-associated chondrocyte transplantation grafts: a comparative study. Osteoarthritis Cartilage 2011; 19:1219-27. [PMID: 21820068 DOI: 10.1016/j.joca.2011.07.004] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2011] [Revised: 06/29/2011] [Accepted: 07/05/2011] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Although scaffold composition and architecture are considered to be important parameters for tissue engineering, their influence on gene expression and cell differentiation is rarely investigated in scaffolds used for matrix-associated autologous chondrocyte transplantation (MACT). In this study we have therefore comparatively analyzed the gene expression of important chondrogenic markers in four clinical applied cell-graft systems with very different scaffold characteristics. METHODS Residuals (n=165) of four different transplant types (MACI®, Hyalograft®C, CaReS® and Novocart®3D) were collected during surgery and analyzed for Col1, Col2, aggrecan, versican, melanoma inhibitory activity (MIA) and IL-1β by real-time PCR. Scaffold and cell morphology were evaluated by histology and electron microscopy. RESULTS Despite the cultivation on 3D scaffolds, the cell differentiation on all transplant types didn't reach the levels of native cartilage. Gene expression highly differed between the transplant types. The highest differentiation of cells (Col2/Col1 ratio) was found in CaReS®, followed by Novocart®3D, Hyalograft®C and MACI®. IL-1β expression also exhibited high differences between the scaffolds showing low expression levels in Novocart®3D and CaReS® and higher expression levels in MACI® and Hyalograft®C. CONCLUSIONS Our data indicate that scaffold characteristics as well as culture conditions highly influence gene expression in cartilage transplants and that these parameters may have profound impact on the tissue regeneration after MACT.
Collapse
Affiliation(s)
- C Albrecht
- Medical University of Vienna, Department of Traumatology, Center for Joint and Cartilage, Vienna, Austria.
| | | | | | | | | | | | | |
Collapse
|
48
|
Albrecht C, Nikitina L, Wenger F, Baumann M, Surbek D, Körner M. ABCA1 and placental cholesterol efflux: A reply. Placenta 2011; 32:710-711. [PMID: 30011749 DOI: 10.1016/j.placenta.2011.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2011] [Accepted: 06/10/2011] [Indexed: 10/18/2022]
Affiliation(s)
- C Albrecht
- Institute of Biochemistry and Molecular Medicine, University of Bern, Bühlstr. 28, CH-3012 Bern, Switzerland.
| | - L Nikitina
- Institute of Biochemistry and Molecular Medicine, University of Bern, Bühlstr. 28, CH-3012 Bern, Switzerland
| | - F Wenger
- Institute of Biochemistry and Molecular Medicine, University of Bern, Bühlstr. 28, CH-3012 Bern, Switzerland
| | - M Baumann
- Department of Obstetrics and Gynecology, University Hospital, University of Bern, Bern, Switzerland
| | - D Surbek
- Department of Obstetrics and Gynecology, University Hospital, University of Bern, Bern, Switzerland
| | - M Körner
- Institute of Pathology, University of Bern, Bern, Switzerland
| |
Collapse
|
49
|
Baumann MU, Messerli M, Tschopp F, Albrecht C, Hediger M, Sager R, Surbek DV. Glukosetransporter-9-Expression in der Plazenta. Geburtshilfe Frauenheilkd 2011. [DOI: 10.1055/s-0031-1286414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
|
50
|
Mani O, Körner M, Ontsouka CE, Sorensen MT, Sejrsen K, Bruckmaier RM, Albrecht C. Identification of ABCA1 and ABCG1 in milk fat globules and mammary cells--implications for milk cholesterol secretion. J Dairy Sci 2011; 94:1265-76. [PMID: 21338792 DOI: 10.3168/jds.2010-3521] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2010] [Accepted: 11/01/2010] [Indexed: 11/19/2022]
Abstract
The ATP-binding cassette (ABC) transporters ABCA1 and ABCG1 play an important role in cellular cholesterol homeostasis, but their function in mammary gland (MG) tissue remains elusive. A bovine MG model that allows repeated MG sampling in identical animals at different functional stages was used to test whether 1) ABCA1 and ABCG1 protein expression and subcellular localization in mammary epithelial cells (MEC) change during the pregnancy-lactation cycle, and 2) these 2 proteins were present in milk fat globules (MFG). Expression and localization in MEC were investigated in bovine MG tissues at the end of lactation, during the dry period (DP), and early lactation using immunohistochemical and immunofluorescence approaches. The presence of ABCA1 and ABCG1 in MFG isolated from fresh milk was determined by immunofluorescence. The ABCA1 protein expression in MEC, expressed as arbitrary units, was higher during the end of lactation (12.2±0.24) and the DP (12.5±0.22) as compared with during early lactation (10.2±0.65). In contrast, no significant change in ABCG1 expression existed between the stages. Throughout the cycle, ABCA1 and ABCG1 were detected in the apical (41.9±24.8 and 49.0±4.96% of cows, respectively), basal (56.2±28.1 and 54.6±7.78% of cows, respectively), or entire cytoplasm (56.8±13.4 and 61.6±14.4% of cows, respectively) of MEC, or showed combined localization. Unlike ABCG1, ABCA1 was absent at the apical aspect of MEC during early lactation. Immunolabeling experiments revealed the presence of ABCA1 and ABCG1 in MFG membranes. Findings suggest a differential, functional stage-dependent role of ABCA1 and ABCG1 in cholesterol homeostasis of the MG epithelium. The presence of ABCA1 and ABCG1 in MFG membranes suggests that these proteins are involved in cholesterol exchange between MEC and alveolar milk.
Collapse
Affiliation(s)
- O Mani
- Institute of Biochemistry and Molecular Medicine, University of Bern, CH-3012 Bern, Switzerland
| | | | | | | | | | | | | |
Collapse
|