Pinkert-Leetsch, Diana

[["dc.bibliographiccitation.artnumber","andr.13292"],["dc.bibliographiccitation.firstpage","1660"],["dc.bibliographiccitation.issue","8"],["dc.bibliographiccitation.journal","Andrology"],["dc.bibliographiccitation.lastpage","1672"],["dc.bibliographiccitation.volume","10"],["dc.contributor.affiliation","Pinkert‐Leetsch, Diana; 1\r\nDepartment of Diagnostic and Interventional Radiology\r\nUniversity Medical Center Goettingen\r\nGoettingen Germany"],["dc.contributor.affiliation","Rost, John Uwe; 1\r\nDepartment of Diagnostic and Interventional Radiology\r\nUniversity Medical Center Goettingen\r\nGoettingen Germany"],["dc.contributor.affiliation","Schmiedeknecht, Max Ulrich Heiner; 3\r\nDepartment of Neuropathology\r\nUniversity Medical Center Goettingen\r\nGoettingen Germany"],["dc.contributor.affiliation","Stadelmann, Christine; 3\r\nDepartment of Neuropathology\r\nUniversity Medical Center Goettingen\r\nGoettingen Germany"],["dc.contributor.affiliation","Alves, Frauke; 1\r\nDepartment of Diagnostic and Interventional Radiology\r\nUniversity Medical Center Goettingen\r\nGoettingen Germany"],["dc.contributor.author","Pinkert‐Leetsch, Diana"],["dc.contributor.author","Rost, John Uwe"],["dc.contributor.author","Schmiedeknecht, Max Ulrich Heiner"],["dc.contributor.author","Stadelmann, Christine"],["dc.contributor.author","Alves, Frauke"],["dc.contributor.author","Missbach‐Guentner, Jeannine"],["dc.date.accessioned","2022-11-28T08:48:04Z"],["dc.date.available","2022-11-28T08:48:04Z"],["dc.date.issued","2022-09-15"],["dc.date.updated","2022-11-27T10:10:46Z"],["dc.description.abstract","Abstract\r\n\r\nBackground\r\nThe unique anatomy of the male reproductive organ reflects its complex function from sperm maturation to their storage for months until emission. Since light microscopy in two dimensions (2d) cannot sufficiently demonstrate its complex morphology, a comprehensive visualization is required to identify pathologic alterations in its entire anatomical context.\r\n\r\n\r\nObjectives\r\nAim of this study was to use three‐dimensional (3d) light sheet fluorescence microscopy (LSFM) to visualize entire murine testes in 3d, label‐free and at subcellular resolution, and to assign local autofluorescence to testicular and deferent structures.\r\n\r\n\r\nMaterials and methods\r\nMurine testes were fixed with four different fixatives and subsequently cleared with benzoic acid/benzyl benzoate. Hereafter, complete murine testes were scanned with LSFM with different fluorescence filter sets and subsequently embedded in paraffin for further conventional planar histology.\r\n\r\n\r\nResults\r\nAutofluorescence signals of the murine reproductive organ allowed the unambiguous identification of the testicular anatomy from the seminiferous tubules to the vas deferens with their specific stratification independent of the used fixative. Blood vessels were visualized from the pampiniform plexus to the small capillaries of single tubules. Moreover, due to the specific intrinsic fluorescence properties of the efferent ducts and the epididymis, luminal caliber, the epithelial stratification and retronuclear cytoplasmic inclusions gave a unique insight into the interface of both morphological structures. Subsequent 2d histology confirmed the identified morphological structures.\r\n\r\n\r\nDiscussion\r\nLSFM analysis of the murine reproductive organ allows due to its intrinsic fluorescence a simple, label‐free 3d assessment of its entire duct morphology, the epithelial composition, and the associated blood supply in its anatomical relation.\r\n\r\n\r\nConclusion\r\nLSFM provides the technical basis for comprehensive analyses of pathologically altered murine testes in its entirety by depicting specific autofluorescence. Thereby it facilitates mouse studies of testicular disease or their drug‐related alterations in more detail potentially for clinical translation assessing human testicular biopsies."],["dc.description.sponsorship","Bundesministerium fuer Bildung und Forschung, Deutschland"],["dc.description.sponsorship","Deutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/501100001659"],["dc.identifier.doi","10.1111/andr.13292"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/117280"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-600"],["dc.relation.eissn","2047-2927"],["dc.relation.issn","2047-2919"],["dc.rights","This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made."],["dc.title","The murine male reproductive organ at a glance: Three‐dimensional insights and virtual histology using label‐free light sheet microcopy"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","1407"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Scientific Reports"],["dc.bibliographiccitation.volume","8"],["dc.contributor.author","Missbach-Guentner, Jeannine"],["dc.contributor.author","Pinkert-Leetsch, Diana"],["dc.contributor.author","Dullin, Christian"],["dc.contributor.author","Ufartes, Roser"],["dc.contributor.author","Hornung, Daniel"],["dc.contributor.author","Tampe, Bjoern"],["dc.contributor.author","Zeisberg, Michael"],["dc.contributor.author","Alves, Frauke"],["dc.date.accessioned","2019-07-09T11:45:05Z"],["dc.date.available","2019-07-09T11:45:05Z"],["dc.date.issued","2018"],["dc.description.abstract","The increasing number of patients with end stage chronic kidney disease not only calls for novel therapeutics but also for pioneering research using convincing preclinical disease models and innovative analytical techniques. The aim of this study was to introduce a virtual histology approach using micro computed tomography (µCT) for the entire murine kidney in order to close the gap between single slice planar histology and a 3D high resolution dataset. An ex vivo staining protocol based on phosphotungstic acid diffusion was adapted to enhance renal soft tissue x-ray attenuation. Subsequent CT scans allowed (i) the detection of the renal cortex, medulla and pelvis in greater detail, (ii) the analysis of morphological alterations, (iii) the quantification of the volume as well as the radio-opacity of these portions and (iv) the quantification of renal fibrotic remodeling based on altered radio-opacity using the unilateral ureteral obstruction model. Thus, virtual histology based on PTA contrast enhanced CT will in future help to refine the outcome of preclinical research on kidney associated murine disease models."],["dc.identifier.doi","10.1038/s41598-018-19773-5"],["dc.identifier.pmid","29362427"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/15031"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/59157"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.issn","2045-2322"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.subject.ddc","610"],["dc.title","3D virtual histology of murine kidneys -high resolution visualization of pathological alterations by micro computed tomography."],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","e0170597"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","PLoS ONE"],["dc.bibliographiccitation.volume","12"],["dc.contributor.author","Dullin, Christian"],["dc.contributor.author","Ufartes, Roser"],["dc.contributor.author","Larsson, Emanuel"],["dc.contributor.author","Martin, Sabine"],["dc.contributor.author","Lazzarini, Marcio"],["dc.contributor.author","Tromba, Giuliana"],["dc.contributor.author","Missbach-Guentner, Jeannine"],["dc.contributor.author","Pinkert-Leetsch, Diana"],["dc.contributor.author","Katschinski, Doerthe Magdalena"],["dc.contributor.author","Alves, Frauke"],["dc.date.accessioned","2018-11-07T10:27:31Z"],["dc.date.available","2018-11-07T10:27:31Z"],["dc.date.issued","2017"],["dc.description.abstract","The small size of the adult and developing mouse heart poses a great challenge for imaging in preclinical research. The aim of the study was to establish a phosphotungstic acid (PTA) ex-vivo staining approach that efficiently enhances the x-ray attenuation of soft-tissue to allow high resolution 3D visualization of mouse hearts by synchrotron radiation based pCT (SRpCT) and classical pCT. We demonstrate that SRpCT of PTA stained mouse hearts ex vivo allows imaging of the cardiac atrium, ventricles, myocardium especially its fibre structure and vessel walls in great detail and furthermore enables the depiction of growth and anatomical changes during distinct developmental stages of hearts in mouse embryos. Our x-ray based virtual histology approach is not limited to SRpCT as it does not require monochromatic and/or coherent x-ray sources and even more importantly can be combined with conventional histological procedures. Furthermore, it permits volumetric measurements as we show for the assessment of the plaque volumes in the aortic valve region of mice from an ApoE-/- mouse model. Subsequent, Masson-Goldner trichrome staining of paraffin sections of PTA stained samples revealed intact collagen and muscle fibres and positive staining of CD31 on endothelial cells by immunohistochemistry illustrates that our approach does not prevent immunochemistry analysis. The feasibility to scan hearts already embedded in paraffin ensured a 100% correlation between virtual cut sections of the CT data sets and histological heart sections of the same sample and may allow in future guiding the cutting process to specific regions of interest. In summary, since our CT based virtual histology approach is a powerful tool for the 3D depiction of morphological alterations in hearts and embryos in high resolution and can be combined with classical histological analysis it may be used in preclinical research to unravel structural alterations of various heart diseases."],["dc.description.sponsorship","Open-Access-Publikationsfonds 2017"],["dc.identifier.doi","10.1371/journal.pone.0170597"],["dc.identifier.isi","000393712500011"],["dc.identifier.pmid","28178293"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/14241"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/43247"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","PUB_WoS_Import"],["dc.publisher","Public Library Science"],["dc.relation.issn","1932-6203"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","mu CT of ex-vivo stained mouse hearts and embryos enables a precise match between 3D virtual histology, classical histology and immunochemistry"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1707"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Journal of Synchrotron Radiation"],["dc.bibliographiccitation.lastpage","1719"],["dc.bibliographiccitation.volume","27"],["dc.contributor.affiliation","Frohn, Jasper; 1Institute for X-ray Physics, Universität Göttingen, Friedrich-Hund-Platz 1, 37077Göttingen, Germany"],["dc.contributor.affiliation","Pinkert-Leetsch, Diana; 2Institute of Diagnostic and Interventional Radiology, University Medical Center Göttingen, Robert Koch Strasse 40, 37075Göttingen, Germany"],["dc.contributor.affiliation","Missbach-Güntner, Jeannine; 2Institute of Diagnostic and Interventional Radiology, University Medical Center Göttingen, Robert Koch Strasse 40, 37075Göttingen, Germany"],["dc.contributor.affiliation","Reichardt, Marius; 1Institute for X-ray Physics, Universität Göttingen, Friedrich-Hund-Platz 1, 37077Göttingen, Germany"],["dc.contributor.affiliation","Osterhoff, Markus; 1Institute for X-ray Physics, Universität Göttingen, Friedrich-Hund-Platz 1, 37077Göttingen, Germany"],["dc.contributor.affiliation","Alves, Frauke; 2Institute of Diagnostic and Interventional Radiology, University Medical Center Göttingen, Robert Koch Strasse 40, 37075Göttingen, Germany"],["dc.contributor.author","Frohn, Jasper"],["dc.contributor.author","Reichardt, Marius"],["dc.contributor.author","Osterhoff, Markus"],["dc.contributor.author","Salditt, Tim"],["dc.contributor.author","Pinkert-Leetsch, Diana"],["dc.contributor.author","Missbach-Güntner, Jeannine"],["dc.contributor.author","Alves, Frauke"],["dc.date.accessioned","2020-12-03T08:19:06Z"],["dc.date.available","2020-12-03T08:19:06Z"],["dc.date.issued","2020-10-26"],["dc.date.updated","2022-02-09T13:21:33Z"],["dc.description.abstract","A multiscale three-dimensional (3D) virtual histology approach is presented, based on two configurations of propagation phase-contrast X-ray tomography, which have been implemented in close proximity at the GINIX endstation at the beamline P10/PETRA III (DESY, Hamburg, Germany). This enables the 3D reconstruction of characteristic morphological features of human pancreatic normal and tumor tissue, as obtained from cancer surgery, first in the form of a large-scale overview by parallel-beam illumination, followed by a zoom into a region-of-interest based on zoom tomography using a Kirkpatrick-Baez mirror with additional waveguide optics. To this end 1 mm punch biopsies of the tissue were taken. In the parallel tomography, a volumetric throughput on the order of 0.01 mm3 s-1 was achieved, while maintaining the ability to segment isolated cells. With a continuous rotation during the scan, a total acquisition time of less than 2 min was required for a full tomographic scan. Using the combination of both setups, islets of Langerhans, a three-dimensional cluster of cells in the endocrine part of the pancreas, could be located. Cells in such an islet were segmented and visualized in 3D. Further, morphological alterations of tumorous tissue of the pancreas were characterized. To this end, the anisotropy parameter Ω, based on intensity gradients, was used in order to quantify the presence of collagen fibers within the entire biopsy specimen. This proof-of-concept experiment of the multiscale approach on human pancreatic tissue paves the way for future 3D virtual pathology."],["dc.description.abstract","This paper presents propagation‐based phase‐contrast tomography in two configurations at the beamline endstation GINIX, demonstrated on the application of 1 mm human pancreatic tumor tissue biopsies. image"],["dc.identifier.doi","10.1107/S1600577520011327"],["dc.identifier.pmid","33147198"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/69419"],["dc.identifier.url","https://mbexc.uni-goettingen.de/literature/publications/85"],["dc.language.iso","en"],["dc.notes.intern","DeepGreen Import"],["dc.publisher","International Union of Crystallography"],["dc.relation","EXC 2067: Multiscale Bioimaging"],["dc.relation.issn","1600-5775"],["dc.relation.orgunit","Institut für Röntgenphysik"],["dc.relation.workinggroup","RG Salditt (Structure of Biomolecular Assemblies and X-Ray Physics)"],["dc.relation.workinggroup","RG Alves (Translationale Molekulare Bildgebung)"],["dc.rights","This is an open access article under the terms of the Creative Commons Attribution License, which permits use,\r\n distribution and reproduction in any medium, provided the original work is properly cited."],["dc.subject.gro","biomedical tomography"],["dc.title","3D virtual histology of human pancreatic tissue by multiscale phase-contrast X-ray tomography"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]