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Köck A, Kofler J, Lemmens L, Suntinger M, Gehringer M, Auer F, Linke K, Riegler B, Winckler C, Berger G, Egger-Danner C. Hind feet position score: A novel trait to genetically reduce lameness incidence. JDS Commun 2024; 5:38-41. [PMID: 38223376 PMCID: PMC10785266 DOI: 10.3168/jdsc.2023-0414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 06/28/2023] [Indexed: 01/16/2024]
Abstract
Lameness is an important health and welfare issue that causes considerable economic losses in dairy herds. The objective of this study was to investigate whether the hind feet position score (HFPS) can be used as an auxiliary trait for genetic evaluation of lameness. The HFPS is evaluated by visual scoring of the position of both the hind-digits to the mid-line of the cow's body. The higher the heel height of the lateral claw, the higher is the HFPS, and the higher is the risk for development of lameness. In total, 3,478 records from 1,064 Fleckvieh cows from 35 farms were obtained between September 1, 2021, and March 5, 2022. Data collection was carried out by the regional milk recording organizations. Hind feet position was scored visually by trained personnel during routine milk performance testing in the milking parlor using a 3-class scoring system: score 1 = 0° to <17° indicating a balanced heel height of both the medial and the lateral claw; score 2 = angle of 17° to 24°; score 3 = angle of >24°. After all cows had been milked, locomotion scoring was performed for each animal using a 5-class scoring system with locomotion scores ranging between 1 (normal) and 5 (severely lame). Using HFPS, sensitivity and specificity were 69.5% and 66.8%, respectively, for detecting lameness defined by locomotion score ≥2. For genetic analyses, a bivariate linear animal model was fitted with fixed effects of herd, parity, lactation stage, and classifier, and random effects of animal and permanent environment. Heritabilities for HFPS and locomotion score were 0.07 and 0.10, respectively, and the genetic correlation between the 2 traits studied was 0.80. These results suggest that the HFPS could be used for genetic evaluations to reduce lameness incidence in dairy cattle.
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Affiliation(s)
- A. Köck
- ZuchtData EDV-Dienstleistungen GmbH, Dresdner Str. 89/18, 1200 Vienna, Austria
| | - J. Kofler
- Department of Farm Animals and Veterinary Public Health, University Clinic for Ruminants, University of Veterinary Medicine Vienna, Veterinärplatz 1, 1210 Vienna, Austria
| | - L. Lemmens
- Department of Farm Animals and Veterinary Public Health, University Clinic for Ruminants, University of Veterinary Medicine Vienna, Veterinärplatz 1, 1210 Vienna, Austria
| | - M. Suntinger
- ZuchtData EDV-Dienstleistungen GmbH, Dresdner Str. 89/18, 1200 Vienna, Austria
| | - M. Gehringer
- LKV-Austria, Dresdner Str. 89, 1200 Vienna, Austria
| | - F.J. Auer
- LKV-Austria, Dresdner Str. 89, 1200 Vienna, Austria
| | - K. Linke
- ZuchtData EDV-Dienstleistungen GmbH, Dresdner Str. 89/18, 1200 Vienna, Austria
| | - B. Riegler
- Department of Sustainable Agricultural Systems, Institute of Livestock Sciences, University of Natural Resources and Life Sciences, Vienna, 1180 Vienna, Austria
| | - C. Winckler
- Department of Sustainable Agricultural Systems, Institute of Livestock Sciences, University of Natural Resources and Life Sciences, Vienna, 1180 Vienna, Austria
| | - G. Berger
- Rinderzucht Austria, Dresdner Str. 89, 1200 Vienna, Austria
| | - C. Egger-Danner
- ZuchtData EDV-Dienstleistungen GmbH, Dresdner Str. 89/18, 1200 Vienna, Austria
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Knabe C, Adel-Khattab D, Rezk M, Cheng J, Berger G, Gildenhaar R, Wilbig J, Günster J, Rack A, Heiland M, Knauf T, Stiller M. Osteogenic Effect of a Bioactive Calcium Alkali Phosphate Bone Substitute in Humans. Bioengineering (Basel) 2023; 10:1408. [PMID: 38135999 PMCID: PMC10741049 DOI: 10.3390/bioengineering10121408] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 11/29/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023] Open
Abstract
(1) Background: The desire to avoid autograft harvesting in implant dentistry has prompted an ever-increasing quest for bioceramic bone substitutes, which stimulate osteogenesis while resorbing in a timely fashion. Consequently, a highly bioactive silicon containing calcium alkali orthophosphate (Si-CAP) material was created, which previously was shown to induce greater bone cell maturation and bone neo-formation than β-tricalcium phosphate (β-TCP) in vivo as well as in vitro. Our study tested the hypothesis that the enhanced effect on bone cell function in vitro and in sheep in vivo would lead to more copious bone neoformation in patients following sinus floor augmentation (SFA) employing Si-CAP when compared to β-TCP. (2) Methods: The effects of Si-CAP on osteogenesis and Si-CAP resorbability were evaluated in biopsies harvested from 38 patients six months after SFA in comparison to β-TCP employing undecalcified histology, histomorphometry, and immunohistochemical analysis of osteogenic marker expression. (3) Results: Si-CAP as well as β-TCP supported matrix mineralization and bone formation. Apically furthest away from the original bone tissue, Si-CAP induced significantly higher bone formation, bone-bonding (bone-bioceramic contact), and granule resorption than β-TCP. This was in conjunction with a higher expression of osteogenic markers. (4) Conclusions: Si-CAP induced higher and more advanced bone formation and resorbability than β-TCP, while β-TCP's remarkable osteoconductivity has been widely demonstrated. Hence, Si-CAP constitutes a well-suited bioactive graft choice for SFA in the clinical arena.
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Affiliation(s)
- Christine Knabe
- Department of Experimental Orofacial Medicine, Philipps-University Marburg, 35039 Marburg, Germany (M.R.); (J.C.); (T.K.); (M.S.)
- Department of Oral and Maxillofacial Surgery, Charité University Medical Center Berlin (Charité-Universitätsmedizin Berlin), Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 13353 Berlin, Germany;
| | - Doaa Adel-Khattab
- Department of Experimental Orofacial Medicine, Philipps-University Marburg, 35039 Marburg, Germany (M.R.); (J.C.); (T.K.); (M.S.)
- Department of Oral Medicine, Periodontology and Diagnosis, Faculty of Dentistry Ain Shams University, Cairo 11566, Egypt
| | - Mohamed Rezk
- Department of Experimental Orofacial Medicine, Philipps-University Marburg, 35039 Marburg, Germany (M.R.); (J.C.); (T.K.); (M.S.)
- Department of Oral Medicine, Periodontology and Diagnosis, Faculty of Dentistry Ain Shams University, Cairo 11566, Egypt
| | - Jia Cheng
- Department of Experimental Orofacial Medicine, Philipps-University Marburg, 35039 Marburg, Germany (M.R.); (J.C.); (T.K.); (M.S.)
| | - Georg Berger
- Division “Advanced Multi-Materials Processing”, Federal Institute for Materials Research and Testing, 12203 Berlin, Germany (R.G.); (J.W.); (J.G.)
| | - Renate Gildenhaar
- Division “Advanced Multi-Materials Processing”, Federal Institute for Materials Research and Testing, 12203 Berlin, Germany (R.G.); (J.W.); (J.G.)
| | - Janka Wilbig
- Division “Advanced Multi-Materials Processing”, Federal Institute for Materials Research and Testing, 12203 Berlin, Germany (R.G.); (J.W.); (J.G.)
| | - Jens Günster
- Division “Advanced Multi-Materials Processing”, Federal Institute for Materials Research and Testing, 12203 Berlin, Germany (R.G.); (J.W.); (J.G.)
| | - Alexander Rack
- Structure of Materials Group, European Synchrotron Radiation Facility, 38043 Grenoble, France
| | - Max Heiland
- Department of Oral and Maxillofacial Surgery, Charité University Medical Center Berlin (Charité-Universitätsmedizin Berlin), Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 13353 Berlin, Germany;
| | - Tom Knauf
- Department of Experimental Orofacial Medicine, Philipps-University Marburg, 35039 Marburg, Germany (M.R.); (J.C.); (T.K.); (M.S.)
- Department of Traumatology, Philipps-University Marburg, 35043 Marburg, Germany
| | - Michael Stiller
- Department of Experimental Orofacial Medicine, Philipps-University Marburg, 35039 Marburg, Germany (M.R.); (J.C.); (T.K.); (M.S.)
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Knabe C, Stiller M, Kampschulte M, Wilbig J, Peleska B, Günster J, Gildenhaar R, Berger G, Rack A, Linow U, Heiland M, Rendenbach C, Koerdt S, Steffen C, Houshmand A, Xiang-Tischhauser L, Adel-Khattab D. A tissue engineered 3D printed calcium alkali phosphate bioceramic bone graft enables vascularization and regeneration of critical-size discontinuity bony defects in vivo. Front Bioeng Biotechnol 2023; 11:1221314. [PMID: 37397960 PMCID: PMC10311449 DOI: 10.3389/fbioe.2023.1221314] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 06/05/2023] [Indexed: 07/04/2023] Open
Abstract
Introduction: Recently, efforts towards the development of patient-specific 3D printed scaffolds for bone tissue engineering from bioactive ceramics have continuously intensified. For reconstruction of segmental defects after subtotal mandibulectomy a suitable tissue engineered bioceramic bone graft needs to be endowed with homogenously distributed osteoblasts in order to mimic the advantageous features of vascularized autologous fibula grafts, which represent the standard of care, contain osteogenic cells and are transplanted with the respective blood vessel. Consequently, inducing vascularization early on is pivotal for bone tissue engineering. The current study explored an advanced bone tissue engineering approach combining an advanced 3D printing technique for bioactive resorbable ceramic scaffolds with a perfusion cell culture technique for pre-colonization with mesenchymal stem cells, and with an intrinsic angiogenesis technique for regenerating critical size, segmental discontinuity defects in vivo applying a rat model. To this end, the effect of differing Si-CAOP (silica containing calcium alkali orthophosphate) scaffold microarchitecture arising from 3D powder bed printing (RP) or the Schwarzwalder Somers (SSM) replica fabrication technique on vascularization and bone regeneration was analyzed in vivo. In 80 rats 6-mm segmental discontinuity defects were created in the left femur. Methods: Embryonic mesenchymal stem cells were cultured on RP and SSM scaffolds for 7d under perfusion to create Si-CAOP grafts with terminally differentiated osteoblasts and mineralizing bone matrix. These scaffolds were implanted into the segmental defects in combination with an arteriovenous bundle (AVB). Native scaffolds without cells or AVB served as controls. After 3 and 6 months, femurs were processed for angio-µCT or hard tissue histology, histomorphometric and immunohistochemical analysis of angiogenic and osteogenic marker expression. Results: At 3 and 6 months, defects reconstructed with RP scaffolds, cells and AVB displayed a statistically significant higher bone area fraction, blood vessel volume%, blood vessel surface/volume, blood vessel thickness, density and linear density than defects treated with the other scaffold configurations. Discussion: Taken together, this study demonstrated that the AVB technique is well suited for inducing adequate vascularization of the tissue engineered scaffold graft in segmental defects after 3 and 6 months, and that our tissue engineering approach employing 3D powder bed printed scaffolds facilitated segmental defect repair.
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Affiliation(s)
- Christine Knabe
- Department of Experimental Orofacial Medicine, Philipps University Marburg, Marburg, Germany
| | - Michael Stiller
- Department of Experimental Orofacial Medicine, Philipps University Marburg, Marburg, Germany
- Department of Prosthodontics, Philipps University Marburg, Marburg, Germany
| | - Marian Kampschulte
- Department of Radiology, Justus Liebig University Giessen, Giessen, Germany
| | - Janka Wilbig
- Department of Biomaterials and Multimodal Processing, Federal Institute for Materials Research and Testing, Berlin, Germany
| | - Barbara Peleska
- Department of Prosthodontics, Philipps University Marburg, Marburg, Germany
| | - Jens Günster
- Department of Biomaterials and Multimodal Processing, Federal Institute for Materials Research and Testing, Berlin, Germany
| | - Renate Gildenhaar
- Department of Biomaterials and Multimodal Processing, Federal Institute for Materials Research and Testing, Berlin, Germany
| | - Georg Berger
- Department of Biomaterials and Multimodal Processing, Federal Institute for Materials Research and Testing, Berlin, Germany
| | - Alexander Rack
- Structure of Materials Group, ESRF (European Synchroton Radiation Facility), Grenoble, France
| | - Ulf Linow
- Department of Biomaterials and Multimodal Processing, Federal Institute for Materials Research and Testing, Berlin, Germany
| | - Max Heiland
- Department of Oral and Maxillofacial Surgery, Charité University Medical Center Berlin (Charité-Universitätsmedizin Berlin), Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Carsten Rendenbach
- Department of Oral and Maxillofacial Surgery, Charité University Medical Center Berlin (Charité-Universitätsmedizin Berlin), Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Steffen Koerdt
- Department of Oral and Maxillofacial Surgery, Charité University Medical Center Berlin (Charité-Universitätsmedizin Berlin), Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Claudius Steffen
- Department of Oral and Maxillofacial Surgery, Charité University Medical Center Berlin (Charité-Universitätsmedizin Berlin), Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Alireza Houshmand
- Department of Experimental Orofacial Medicine, Philipps University Marburg, Marburg, Germany
| | - Li Xiang-Tischhauser
- Department of Experimental Orofacial Medicine, Philipps University Marburg, Marburg, Germany
| | - Doaa Adel-Khattab
- Department of Experimental Orofacial Medicine, Philipps University Marburg, Marburg, Germany
- Department of Periodontology, Ain Shams University, Cairo, Egypt
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Jimenez-Macias J, Lee YC, Miller E, Finkelberg T, Zdioruk M, Berger G, Farquhar C, Nowicki M, Cho CF, Fedeles B, Loas A, Pentelute B, Lawler SE. A Pt(IV)-conjugated brain penetrant macrocyclic peptide shows pre-clinical efficacy in glioblastoma. J Control Release 2022; 352:623-636. [PMID: 36349615 PMCID: PMC9881056 DOI: 10.1016/j.jconrel.2022.10.051] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 09/29/2022] [Accepted: 10/25/2022] [Indexed: 11/06/2022]
Abstract
Glioblastoma (GBM) is the most aggressive primary malignant brain tumor, with a median survival of approximately 15 months. Treatment is limited by the blood-brain barrier (BBB) which restricts the passage of most drugs to the brain. We previously reported the design and synthesis of a BBB-penetrant macrocyclic cell-penetrating peptide conjugate (M13) covalently linked at the axial position of a Pt(IV) cisplatin prodrug. Here we show the Pt(IV)-M13 conjugate releases active cisplatin upon intracellular reduction and effects potent in vitro GBM cell killing. Pt(IV)-M13 significantly increased platinum uptake in an in vitro BBB spheroid model and intravenous administration of Pt(IV)-M13 in GBM tumor-bearing mice led to higher platinum levels in brain tissue and intratumorally compared with cisplatin. Pt(IV)-M13 administration was tolerated in naïve nude mice at higher dosage regimes than cisplatin and significantly extended survival above controls in a murine GBM xenograft model (median survival 33 days for Pt(IV)-M13 vs 24 days for Pt(IV) prodrug, 22.5 days for cisplatin and 22 days for control). Increased numbers of γH2AX nuclear foci, biomarkers of DNA damage, were observed in tumors of Pt(IV)-M13-treated mice, consistent with elevated platinum levels. The present work provides the first demonstration that systemic injection of a Pt(IV) complex conjugated to a brain-penetrant macrocyclic peptide can lead to increased platinum levels in the brain and extend survival in mouse GBM models, supporting further development of this approach and the utility of brain-penetrating macrocyclic peptide conjugates for delivering non-BBB penetrant drugs to the central nervous system.
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Affiliation(s)
- J.L. Jimenez-Macias
- Harvey Cushing Neuro-Oncology Laboratories, Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA,Department of Pathology and Laboratory Medicine, Legorreta Cancer Center, Brown University, Providence, RI 02903, USA,Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Y.-C. Lee
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - E. Miller
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - T. Finkelberg
- Harvey Cushing Neuro-Oncology Laboratories, Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - M. Zdioruk
- Harvey Cushing Neuro-Oncology Laboratories, Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - G. Berger
- Harvey Cushing Neuro-Oncology Laboratories, Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA,Microbiology, Bioorganic and Macromolecular Chemistry, Faculty of Pharmacy, Université Libre de Bruxelles, Brussels 1050, Belgium
| | - C.E. Farquhar
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - M.O. Nowicki
- Harvey Cushing Neuro-Oncology Laboratories, Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - C.-F. Cho
- Harvey Cushing Neuro-Oncology Laboratories, Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA,Program in Neuroscience, Harvard Medical School, Boston, MA 02115, USA,Harvard Stem Cell Institute, Harvard University, Boston, MA 02115, USA,Broad Institute of MIT and Harvard, 415 Main Street, Cambridge, MA 02142, USA
| | - B.I. Fedeles
- Center for Environmental Health Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - A. Loas
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - B.L. Pentelute
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA,Center for Environmental Health Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA,The Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, 500 Main Street, Cambridge, MA 02142, USA,Broad Institute of MIT and Harvard, 415 Main Street, Cambridge, MA 02142, USA,Correspondence to: B.L. Pentelute, Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. (B.L. Pentelute)
| | - S. E. Lawler
- Harvey Cushing Neuro-Oncology Laboratories, Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA,Department of Pathology and Laboratory Medicine, Legorreta Cancer Center, Brown University, Providence, RI 02903, USA,Correspondence to: S.E. Lawler, Department of Pathology and Laboratory Medicine, Legorreta Cancer Center, Brown University, Providence, RI 02903, USA. (S.E. Lawler)
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Beal K, Million-Picallion L, Delaunay S, Berger G, Lefèvre G. Insights into the formation mechanism of hard sludge on the secondary side of PWR steam generators. Nuclear Materials and Energy 2022. [DOI: 10.1016/j.nme.2022.101197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Waters JE, Berger G, Peel AJ, García-Rodríguez R, Bond AD, Wright DS. Uncovering the Hidden Landscape of Tris(4-pyridyl) Ligands: Topological Complexity Derived from the Bridgehead. Chemistry 2021; 27:12036-12040. [PMID: 34128570 DOI: 10.1002/chem.202101291] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 04/11/2021] [Indexed: 11/09/2022]
Abstract
Supramolecular main group chemistry is a developing field which parallels the conventional domain of metallo-organic chemistry. Little explored building blocks in this area are main group metal-based ligands which have the appropriate donor symmetry to build desired molecular or extended arrangements. Tris(pyridyl) main group ligands (E(py)3 , E=main group metal) are potentially highly versatile building blocks since shifting the N-donor arms from the 2- to the 3-positions and 4-positions provides a very simple way of changing the ligand character from mononuclear/chelating to multidentate/metal-bridging. Here, the coordination behaviour of the first main group metal tris(4-pyridyl) ligands, E(4-py)3 (E=Sb, Bi, Ph-Sn) is explored, as well as their ability to build metal-organic frameworks (MOFs). The complicated topology of these MOFs shows a marked influence on the counter anion and on the ability of the E(4-py)3 ligands to switch coordination mode, depending on the steric and donor character of the bridgehead. This structure-directing influence of the bridgehead provides a potential building strategy for future molecular and MOF design in this area.
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Affiliation(s)
- Jessica E Waters
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Georg Berger
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK.,Anorganisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Andrew J Peel
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Raúl García-Rodríguez
- GIR MIOMeT, IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, E-47011, Valladolid, Spain
| | - Andrew D Bond
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Dominic S Wright
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
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Hütter C, Lanner M, Aigmüller T, Simon K, Hofmann P, Kratky M, Engelmann G, Mutz-Eckhart C, Blatt-Gunegger M, Klammer S, Berger G, Bermann C, Resetarits K, Huber A, Lang P, Lessiak V, Tamussino K. Implementierung der prophylaktischen bilateralen Salpingektomie (PBS) bei der minimal-invasiven Hysterektomie. Geburtshilfe Frauenheilkd 2020. [DOI: 10.1055/s-0040-1713204] [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: 10/24/2022] Open
Affiliation(s)
- C Hütter
- Universitätsklinik für Frauenheilkunde und Geburtshilfe der Med. Universität Graz
| | - M Lanner
- Universitätsklinik für Frauenheilkunde und Geburtshilfe der Med. Universität Graz
| | | | - K Simon
- LKH Hochsteiermark, Standort Leoben
| | - P Hofmann
- LKH Weststeiermark, Standort Deutschlandsberg
| | - M Kratky
- LKH Weststeiermark, Standort Deutschlandsberg
| | - G Engelmann
- LKH Murtal, Standort Judenburg
- LKH Rottenmann
| | | | | | | | | | | | | | | | - P Lang
- Krankenhaus der Barmherzigen Brüder Graz
| | - V Lessiak
- Krankenhaus der Barmherzigen Brüder Graz
| | - K Tamussino
- Universitätsklinik für Frauenheilkunde und Geburtshilfe der Med. Universität Graz
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Lasman N, Shalom M, Turpashvili N, Goldhaber G, Lifshitz Y, Leibowitz E, Berger G, Saltzman-Shenhav G, Brom A, Cohen D, Avaky C, Segal G. Baseline low ALT activity is associated with increased long-term mortality after COPD exacerbations. BMC Pulm Med 2020; 20:133. [PMID: 32393221 PMCID: PMC7216624 DOI: 10.1186/s12890-020-1169-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 11/12/2019] [Accepted: 04/28/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND COPD exacerbations have negative impact on patients' survival. Several risk factors for grave outcomes of such exacerbations have been descried. Muscle dysfunction and mass loss were shown to impact negatively on prognosis and survival. Low activity of the enzyme ALT (Alanine amino-transferase) in the blood is a known indicator for sarcopenia and frailty, however, no previous studies addressed the association of low ALT amongst patients hospitalized due to COPD exacerbation and long-term survival. METHODS This is a historic prospective cohort study of patients hospitalized due to acute COPD exacerbation. RESULTS Included were 232 consecutive COPD exacerbation patients. The median time of follow-up was 34.9 months (IQR 23.13-41.73 months). During this period 104 (44.8%) patients died. All patients were grouped to quartiles according to blood ALT levels (after exclusion of cases considered to have hepatic tissue damage (ALT > 40 IU)). The risk of long-term mortality increased, in a statistically significant manner, amongst patients with low ALT values: the median survival of patients with ALT < 11 IU was 18.5 months only while the median survival for the rest of the study group was not reached. For ALT < 11 IU; 12-16 IU; 17-20 IU and > 21 IU the mortality rates were 69%; 40.9%; 36.3 and 25% respectively (p < 0.001 for comparison of lower quartile with upper three quartiles). The crude hazard ratio for mortality amongst patients with ALT levels lower than 11 IU was 2.37 (95% CI; 1.6-3.5). This increased risk of mortality remained significant after adjustment for age, weight, creatinine, albumin concentration and cardiovascular diseases (HR = 1.83; 95% CI 1.08-3.1, p < 0.05). CONCLUSIONS Low ALT values, a biomarker of sarcopenia and frailty, are associated with poor long-term survival amongst patients hospitalized due to COPD exacerbation.
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Affiliation(s)
- N Lasman
- Internal medicine T, Chaim Sheba Medical Center, Tel-Hashomer, 2nd Sheba road, Ramat Gan, Israel.,Sackler faculty of medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - M Shalom
- Internal medicine T, Chaim Sheba Medical Center, Tel-Hashomer, 2nd Sheba road, Ramat Gan, Israel.,Sackler faculty of medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - N Turpashvili
- Internal medicine T, Chaim Sheba Medical Center, Tel-Hashomer, 2nd Sheba road, Ramat Gan, Israel.,Sackler faculty of medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - G Goldhaber
- Internal medicine T, Chaim Sheba Medical Center, Tel-Hashomer, 2nd Sheba road, Ramat Gan, Israel.,Sackler faculty of medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Y Lifshitz
- Internal medicine T, Chaim Sheba Medical Center, Tel-Hashomer, 2nd Sheba road, Ramat Gan, Israel.,Sackler faculty of medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - E Leibowitz
- Department of Internal Medicine "A", Yoseftal Hospital, Eilat, Israel
| | - G Berger
- Department of Internal Medicine "B", Rambam Health Care Campus, Haifa, Israel.,Rappaport's Faculty of Medicine, The Technion Institute, Haifa, Israel.,Division of Pulmonary Medicine, Rambam Health Care Campus, Haifa, Israel
| | - G Saltzman-Shenhav
- Internal medicine T, Chaim Sheba Medical Center, Tel-Hashomer, 2nd Sheba road, Ramat Gan, Israel.,Sackler faculty of medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - A Brom
- Internal medicine T, Chaim Sheba Medical Center, Tel-Hashomer, 2nd Sheba road, Ramat Gan, Israel.,Sackler faculty of medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - D Cohen
- Internal medicine T, Chaim Sheba Medical Center, Tel-Hashomer, 2nd Sheba road, Ramat Gan, Israel.,Sackler faculty of medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - C Avaky
- Internal medicine T, Chaim Sheba Medical Center, Tel-Hashomer, 2nd Sheba road, Ramat Gan, Israel.,Sackler faculty of medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - G Segal
- Internal medicine T, Chaim Sheba Medical Center, Tel-Hashomer, 2nd Sheba road, Ramat Gan, Israel. .,Sackler faculty of medicine, Tel-Aviv University, Tel-Aviv, Israel.
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Hütter C, Lanner M, Aigmüller T, Simon K, Hofmann P, Kratky M, Engelmann G, Mutz-Eckhart C, Blatt-Gunegger M, Klammer S, Berger G, Bermann C, Resetarits K, Huber A, Lang P, Lessiak V, Tamussino K. Implementierung der prophylaktischen bilateralen Salpingektomie (PBS) bei der minimal-invasiven Hysterektomie. Geburtshilfe Frauenheilkd 2020. [DOI: 10.1055/s-0039-3403389] [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: 10/24/2022] Open
Affiliation(s)
- C Hütter
- Universitätsklinik für Frauenheilkunde und Geburtshilfe der Med. Universität Graz
| | - M Lanner
- Universitätsklinik für Frauenheilkunde und Geburtshilfe der Med. Universität Graz
| | | | - K Simon
- LKH Hochsteiermark, Standort Leoben
| | - P Hofmann
- LKH Weststeiermark, Standort Deutschlandsberg
| | - M Kratky
- LKH Weststeiermark, Standort Deutschlandsberg
| | | | | | | | | | | | | | | | | | - P Lang
- Krankenhaus der Barmherzigen Brüder Graz
| | - V Lessiak
- Krankenhaus der Barmherzigen Brüder Graz
| | - K Tamussino
- Universitätsklinik für Frauenheilkunde und Geburtshilfe der Med. Universität Graz
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10
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Nelson B, Yuen HP, Amminger GP, Berger G, Chen EYH, de Haan L, Hartmann JA, Hickie IB, Lavoie S, Markulev C, Mossaheb N, Nieman DH, Nordentoft M, Polari A, Riecher-Rössler A, Schäfer MR, Schlögelhofer M, Smesny S, Tedja A, Thompson A, Verma S, Yung AR, McGorry PD. Distress related to attenuated psychotic symptoms: Static and dynamic association with transition to psychosis, non-remission and transdiagnostic symptomatology in clinical high-risk patients in an international intervention trial. ACTA ACUST UNITED AC 2020. [DOI: 10.1093/schizbullopen/sgaa006] [Citation(s) in RCA: 2] [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] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
This study examined whether distress in relation to attenuated psychotic symptoms (DAPS) is associated with clinical outcomes in an ultra-high-risk (UHR) for psychosis sample. We also investigated whether DAPS is associated with cognitive style (attributional style and cognitive biases) and whether amount of psychosocial treatment provided is associated with reduction in DAPS. The study was a secondary analysis of the ‘Neurapro’ clinical trial of omega-3 fatty acids. 304 UHR patients were recruited across ten early intervention services. Data from baseline assessment, regular assessments over 12 months and medium term follow up (mean=3.4 years) were used for analysis. Findings indicated: a positive association between DAPS assessed over time and transition to psychosis; a significant positive association between baseline and longitudinal DAPS and transdiagnostic clinical and functional outcomes; a significant positive association between baseline and longitudinal DAPS and non-remission of UHR status. There was no relationship between severity of DAPS and cognitive style. A greater amount of psychosocial treatment (cognitive-behavioural case management) was associated with an increase in DAPS scores. The study indicates that UHR patients who are more distressed by their attenuated psychotic symptoms are more likely to have a poorer clinical trajectory transdiagnostically. Assessment of DAPS may therefore function as a useful marker of risk for a range of poor outcomes. The findings underline the value of repeated assessment of variables and incorporation of dynamic change into predictive modelling. More research is required into mechanisms driving distress associated with symptoms and the possible bidirectional relationship between symptom severity and associated distress.
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Affiliation(s)
- B Nelson
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - H P Yuen
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - G P Amminger
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - G Berger
- Child and Adolescent Psychiatric Service of the Canton of Zurich, Zurich, Switzerland
| | - E Y H Chen
- Department of Psychiatry, University of Hong Kong, Hong Kong
| | - L de Haan
- Academic Medical Center, Amsterdam, the Netherlands
| | - J A Hartmann
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - I B Hickie
- Brain and Mind Research Institute, University of Sydney, Australia
| | - S Lavoie
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - C Markulev
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - N Mossaheb
- Department of Psychiatry and Psychotherapy, Clinical Division of Social Psychiatry, Medical University of Vienna, Austria
| | - D H Nieman
- Academic Medical Center, Amsterdam, the Netherlands
| | - M Nordentoft
- CORE-Copenhagen Research Centre for Mental Health, Mental Health Centre Copenhagen, Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - A Polari
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | | | - M R Schäfer
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - M Schlögelhofer
- Department of Child and Adolescent Psychiatry, Medical University Vienna, Austria
| | - S Smesny
- University Hospital Jena, Jena, Germany
| | - A Tedja
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - A Thompson
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - S Verma
- Institute of Mental Health, Singapore, Singapore
| | - A R Yung
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - P D McGorry
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, Australia
- Department of Psychology, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne
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11
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Youn S, Phillips LJ, Amminger GP, Berger G, Chen EYH, de Haan L, Hartmann JA, Hickie IB, Lavoie S, Markulev C, McGorry PD, Mossaheb N, Nieman DH, Nordentoft M, Riecher-Rössler A, Schäfer MR, Schlögelhofer M, Smesny S, Thompson A, Verma S, Yuen HP, Yung AR, Nelson B. Basic symptoms in young people at ultra-high risk of psychosis: Association with clinical characteristics and outcomes. Schizophr Res 2020; 216:255-261. [PMID: 31866077 DOI: 10.1016/j.schres.2019.11.047] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 09/06/2019] [Accepted: 11/25/2019] [Indexed: 12/30/2022]
Abstract
There has been limited research into the predictive value of basic symptoms and their relationship with other psychopathology in patients identified using the 'ultra high risk' (UHR) for psychosis approach. The current study investigated whether basic symptoms, specifically cognitive disturbances (COGDIS), were associated with a greater risk of transition to psychotic disorder and persistent attenuated psychotic symptoms (APS) at medium term follow-up (mean = 3.4 years) in UHR patients, as well as with general psychopathology at baseline. The sample included 304 UHR participants (mean age = 19.12 years) involved in an international multicenter trial of omega-3 fatty acids. UHR individuals who also met the COGDIS criteria (basic symptoms risk criteria) did not have a greater risk of transition than those who met the UHR criteria alone. However, meeting COGDIS risk criteria was associated with a greater likelihood of meeting the UHR attenuated psychotic symptoms risk group (i.e., having persistent attenuated psychotic symptoms) at 12-month follow-up (odds ratio = 1.85; 95% CI = 1.03, 3.32). Greater severity of cognitive basic symptoms was also independently associated with more severe general psychopathology at study entry. The findings do not support the notion that combined risk identification approaches (UHR and basic symptoms) aid in the identification of individuals at greatest risk of psychosis, although this interpretation is limited by the modest transition to psychosis rate (13%) and the time of follow up. However, the findings indicate that basic symptoms may be a clinically useful marker of more severe general psychopathology in UHR groups and risk for persistent attenuated psychotic symptoms.
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Affiliation(s)
- S Youn
- Orygen, the National Centre of Excellence in Youth Mental Health, Melbourne, Australia; Centre for Youth Mental Health, University of Melbourne, Australia
| | - L J Phillips
- Department of Psychology, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Australia
| | - G P Amminger
- Orygen, the National Centre of Excellence in Youth Mental Health, Melbourne, Australia; Centre for Youth Mental Health, University of Melbourne, Australia
| | - G Berger
- Child and Adolescent Psychiatric Service of the Canton of Zurich, Zurich, Switzerland
| | - E Y H Chen
- Department of Psychiatry, University of Hong Kong, Hong Kong
| | - L de Haan
- Academic Medical Center, Amsterdam, the Netherlands
| | - J A Hartmann
- Orygen, the National Centre of Excellence in Youth Mental Health, Melbourne, Australia; Centre for Youth Mental Health, University of Melbourne, Australia
| | - I B Hickie
- Brain and Mind Research Institute, University of Sydney, Australia
| | - S Lavoie
- Orygen, the National Centre of Excellence in Youth Mental Health, Melbourne, Australia; Centre for Youth Mental Health, University of Melbourne, Australia
| | - C Markulev
- Orygen, the National Centre of Excellence in Youth Mental Health, Melbourne, Australia; Centre for Youth Mental Health, University of Melbourne, Australia
| | - P D McGorry
- Orygen, the National Centre of Excellence in Youth Mental Health, Melbourne, Australia; Centre for Youth Mental Health, University of Melbourne, Australia
| | - N Mossaheb
- Department of Psychiatry and Psychotherapy, Clinical Division of Social Psychiatry, Medical University of Vienna, Austria
| | - D H Nieman
- Academic Medical Center, Amsterdam, the Netherlands
| | - M Nordentoft
- Psychiatric Centre Bispebjerg, Copenhagen, Denmark
| | | | - M R Schäfer
- Orygen, the National Centre of Excellence in Youth Mental Health, Melbourne, Australia; Centre for Youth Mental Health, University of Melbourne, Australia
| | - M Schlögelhofer
- Department of Psychiatry, Medical University of Vienna, Austria
| | - S Smesny
- University Hospital Jena, Jena, Germany
| | - A Thompson
- Orygen, the National Centre of Excellence in Youth Mental Health, Melbourne, Australia; Centre for Youth Mental Health, University of Melbourne, Australia
| | - S Verma
- Institute of Mental Health, Singapore, Singapore
| | - H P Yuen
- Orygen, the National Centre of Excellence in Youth Mental Health, Melbourne, Australia; Centre for Youth Mental Health, University of Melbourne, Australia
| | - A R Yung
- Orygen, the National Centre of Excellence in Youth Mental Health, Melbourne, Australia; Centre for Youth Mental Health, University of Melbourne, Australia
| | - B Nelson
- Orygen, the National Centre of Excellence in Youth Mental Health, Melbourne, Australia; Centre for Youth Mental Health, University of Melbourne, Australia.
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12
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Engl PS, Häring AP, Berger F, Berger G, Pérez-Bitrián A, Ritter T. Addition to “C–N Cross-Couplings for Site-Selective Late-Stage Diversification via Aryl Sulfonium Salts”. J Am Chem Soc 2019; 141:16178. [DOI: 10.1021/jacs.9b09832] [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]
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13
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Engl PS, Häring AP, Berger F, Berger G, Pérez-Bitrián A, Ritter T. C-N Cross-Couplings for Site-Selective Late-Stage Diversification via Aryl Sulfonium Salts. J Am Chem Soc 2019; 141:13346-13351. [PMID: 31411869 DOI: 10.1021/jacs.9b07323] [Citation(s) in RCA: 114] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
We report diverse C-N cross-coupling reactions of aryl thianthrenium salts that are formed site-selectively by direct C-H functionalization. The scope of N-nucleophiles ranges from primary and secondary alkyl and aryl amines to various N-containing heterocycles, and the overall transformation is applicable to late-stage functionalization of complex, drug-like small molecules.
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Affiliation(s)
- Pascal S Engl
- Max-Planck-Institut für Kohlenforschung , Kaiser-Wilhelm Platz 1 , D-45470 Mülheim an der Ruhr , Germany
| | - Andreas P Häring
- Max-Planck-Institut für Kohlenforschung , Kaiser-Wilhelm Platz 1 , D-45470 Mülheim an der Ruhr , Germany
| | - Florian Berger
- Max-Planck-Institut für Kohlenforschung , Kaiser-Wilhelm Platz 1 , D-45470 Mülheim an der Ruhr , Germany
| | - Georg Berger
- Max-Planck-Institut für Kohlenforschung , Kaiser-Wilhelm Platz 1 , D-45470 Mülheim an der Ruhr , Germany
| | - Alberto Pérez-Bitrián
- Max-Planck-Institut für Kohlenforschung , Kaiser-Wilhelm Platz 1 , D-45470 Mülheim an der Ruhr , Germany
| | - Tobias Ritter
- Max-Planck-Institut für Kohlenforschung , Kaiser-Wilhelm Platz 1 , D-45470 Mülheim an der Ruhr , Germany
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14
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Yuen HP, Mackinnon A, Hartmann J, Amminger GP, Markulev C, Lavoie S, Schäfer MR, Polari A, Mossaheb N, Schlögelhofer M, Smesny S, Hickie IB, Berger G, Chen EYH, de Haan L, Nieman DH, Nordentoft M, Riecher-Rössler A, Verma S, Thompson A, Yung AR, McGorry PD, Nelson B. Dynamic prediction of transition to psychosis using joint modelling. Schizophr Res 2018; 202:333-340. [PMID: 30539771 DOI: 10.1016/j.schres.2018.07.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [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: 05/12/2018] [Revised: 07/01/2018] [Accepted: 07/01/2018] [Indexed: 10/28/2022]
Abstract
Considerable research has been conducted seeking risk factors and constructing prediction models for transition to psychosis in individuals at ultra-high risk (UHR). Nearly all such research has only employed baseline predictors, i.e. data collected at the baseline time point, even though longitudinal data on relevant measures such as psychopathology have often been collected at various time points. Dynamic prediction, which is the updating of prediction at a post-baseline assessment using baseline and longitudinal data accumulated up to that assessment, has not been utilized in the UHR context. This study explored the use of dynamic prediction and determined if it could enhance the prediction of frank psychosis onset in UHR individuals. An emerging statistical methodology called joint modelling was used to implement the dynamic prediction. Data from the NEURAPRO study (n = 304 UHR individuals), an intervention study with transition to psychosis study as the primary outcome, were used to investigate dynamic predictors. Compared with the conventional approach of using only baseline predictors, dynamic prediction using joint modelling showed significantly better sensitivity, specificity and likelihood ratios. As dynamic prediction can provide an up-to-date prediction for each individual at each new assessment post entry, it can be a useful tool to help clinicians adjust their prognostic judgements based on the unfolding clinical symptomatology of the patients. This study has shown that a dynamic approach to psychosis prediction using joint modelling has the potential to aid clinicians in making decisions about the provision of timely and personalized treatment to patients concerned.
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Affiliation(s)
- H P Yuen
- Orygen, The National Centre of Excellence in Youth Mental Health, Melbourne, Australia; Centre for Youth Mental Health, The University of Melbourne, Australia.
| | - A Mackinnon
- Centre for Mental Health, Melbourne School of Population and Global Health, The University of Melbourne, Australia; Black Dog Institute, New South Wales, Australia; University of New South Wales, New South Wales, Australia
| | - J Hartmann
- Orygen, The National Centre of Excellence in Youth Mental Health, Melbourne, Australia; Centre for Youth Mental Health, The University of Melbourne, Australia
| | - G P Amminger
- Orygen, The National Centre of Excellence in Youth Mental Health, Melbourne, Australia; Centre for Youth Mental Health, The University of Melbourne, Australia
| | - C Markulev
- Orygen, The National Centre of Excellence in Youth Mental Health, Melbourne, Australia; Centre for Youth Mental Health, The University of Melbourne, Australia
| | - S Lavoie
- Orygen, The National Centre of Excellence in Youth Mental Health, Melbourne, Australia; Centre for Youth Mental Health, The University of Melbourne, Australia
| | - M R Schäfer
- Orygen, The National Centre of Excellence in Youth Mental Health, Melbourne, Australia
| | - A Polari
- Orygen, The National Centre of Excellence in Youth Mental Health, Melbourne, Australia; Centre for Youth Mental Health, The University of Melbourne, Australia; Orygen Youth Health, Melbourne, Australia
| | - N Mossaheb
- Department of Psychiatry and Psychotherapy, Clinical Division of Social Psychiatry, Medical University of Vienna, Austria
| | - M Schlögelhofer
- Department of Child and Adolescent Psychiatry, Medical University of Vienna, Austria
| | - S Smesny
- University Hospital Jena, Germany
| | - I B Hickie
- Brain and Mind Centre, University of Sydney, Australia
| | - G Berger
- Child and Adolescent Psychiatric Service of the Canton of Zurich, Zurich, Switzerland
| | - E Y H Chen
- Department of Psychiatry, University of Hong Kong, Hong Kong
| | - L de Haan
- Academic Medical Center, Amsterdam, the Netherlands
| | - D H Nieman
- Academic Medical Center, Amsterdam, the Netherlands
| | - M Nordentoft
- Mental Health Centre Copenhagen, Mental Health Services in the Capital Region, Copenhagen University Hospital, Denmark
| | | | - S Verma
- Department of Psychosis, Institute of Mental Health, Singapore, Singapore
| | - A Thompson
- Orygen, The National Centre of Excellence in Youth Mental Health, Melbourne, Australia; Division of Mental Health and Wellbeing, Warwick Medical School, University of Warwick, Coventry, England, UK; North Warwickshire Early Intervention in Psychosis Service, Coventry and Warwickshire NHS Partnership Trust, England, UK
| | - A R Yung
- Orygen, The National Centre of Excellence in Youth Mental Health, Melbourne, Australia; Institute of Brain, Behaviour and Mental Health, University of Manchester, Manchester, UK; Greater Manchester West NHS Mental Health Foundation Trust, Manchester, England, UK
| | - P D McGorry
- Orygen, The National Centre of Excellence in Youth Mental Health, Melbourne, Australia; Centre for Youth Mental Health, The University of Melbourne, Australia
| | - B Nelson
- Orygen, The National Centre of Excellence in Youth Mental Health, Melbourne, Australia; Centre for Youth Mental Health, The University of Melbourne, Australia
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15
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Fasching M, Berger G, Friesenbichler W, Filz P, Helbich B. Robust Process Control for Rubber Injection Moulding with Use of Systematic Simulations and Improved Material Data. ACTA ACUST UNITED AC 2018. [DOI: 10.1177/0307174x1504200301] [Citation(s) in RCA: 4] [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: 11/17/2022]
Abstract
The heating phase is by far the most time-consuming part of rubber injection moulding. The determination of a suitable curing time is difficult despite extensive injection moulding trials, since in many cases the quality of a part, such as its degree of vulcanisation which is often visually detectable only where there is significant undercure (Figure 1a), cannot be assessed without closer examination (Figure 1b). Systematic injection moulding simulation with Varimos presents an effective solution because the Varimos methodology allows virtual detection of the impacts of process parameters and their interactions, as well as visualisation of e.g. impending undercure (Figure 1c). It therefore enables part, mould and process to be optimised automatically to the desired quality criteria. As a result, it is possible not only to save valuable machine time, which would otherwise be taken up for process development, but also to define the processing window more precisely and thus to improve the economic efficiency of the process while at the same time ensuring the necessary process stability. This was successfully investigated and demonstrated using a thick-walled test piece during the RubSim project at the Polymer Competence Center Leoben GmbH in collaboration with the Injection Moulding of Polymers Group of the University of Leoben and the industrial partners SKF Sealing Solutions Austria GmbH, Engel Austria GmbH, Simcon kunststofftechnische Software GmbH and Dr. Gierth Ingenieurgesellschaft mbH.
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Affiliation(s)
- M. Fasching
- Polymer Competence Center Leoben GmbH, Austria
| | | | | | - P. Filz
- Simcon kunststofftechnische Software GmbH, Würselen, Germany
| | - B. Helbich
- Simcon kunststofftechnische Software GmbH, Würselen, Germany
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16
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Lemay JF, Lanzinger S, Pacaud D, Plener PL, Fürst-Burger A, Biester T, Hilgard D, Lilienthal E, Galler A, Berger G, Holl RW. Metabolic control of type 1 diabetes in youth with autism spectrum disorder: A multicenter Diabetes-Patienten-Verlaufsdokumentation analysis based on 61 749 patients up to 20 years of age. Pediatr Diabetes 2018; 19:930-936. [PMID: 29582531 DOI: 10.1111/pedi.12676] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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: 02/15/2018] [Accepted: 03/14/2018] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND A paucity of reports in the literature exists concerning the co-existence between autism spectrum disorder (ASD) and type 1 diabetes (T1D). OBJECTIVE To compare clinical characteristics, diabetes management and metabolic control in youth with T1D and ASD (T1D-ASD) with youth without ASD (T1D-non ASD). METHODS Using the German/Austrian diabetes patient follow-up registry, this study analyzed aggregated data from the last available year of observation for each patient with T1D, ages 1-20 with consistent data on insulin regimen and glycated hemoglobin (A1C), between January, 2005 and March, 2017. RESULTS From 61 749 patients, 150 (0.24%) were identified as T1D-ASD. Non-adjusted comparisons showed similar results for mean age at onset and duration of diabetes, but not for gender (male: T1D-ASD: 85.3%; T1D-non ASD: 52.8%; P < .001). Unadjusted comparisons showed no difference for severe hypoglycemia, diabetic ketoacidosis, insulin doses, insulin pump therapy, and body mass index. A statistical difference was observed for A1C (P-value .01) and in the number of blood glucose (SMBG) tests/day (median [interquartile range]: T1D-ASD 6.0 [4.4-7.0]; T1D-non ASD 5.0 [4.4-7.0]; P-value < .001). After adjusting for age, gender, duration of diabetes, and year of observation, only SMBG remained significant (P-value .003). T1D-ASD used psycho-stimulants (15.3% vs 2.2%; P-value < .001), antipsychotics (10.7% vs 0.6%; P-value < .001), and antidepressive medications (3.6% vs 0.7%; P-value < .001) more frequently. CONCLUSION Metabolic control was similar in the T1D-ASD group compared to T1D-non ASD despite their comorbidity. Awareness of ASD remains important in T1D treatment, as both conditions require long-term multi-disciplinary medical follow-up for optimal outcomes.
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Affiliation(s)
- J-F Lemay
- Department of Paediatrics, Alberta Children's Hospital/Cumming School of Medicine (University of Calgary), Calgary, Canada
| | - S Lanzinger
- University of Ulm, Institute of Epidemiology and Medical Biometry, Central Institute for Biomedical Technology, Ulm, Germany.,German Centre for Diabetes Research (DZD), Munich, Germany
| | - D Pacaud
- Department of Paediatrics, Alberta Children's Hospital/Cumming School of Medicine (University of Calgary), Calgary, Canada
| | - P L Plener
- Department of Child and Adolescent Psychiatry and Psychotherapy, University of Ulm, Ulm, Germany
| | | | - T Biester
- AUF DER BULT, Diabetes Centre for Children and Adolescents, Hannover, Germany
| | - D Hilgard
- Department of Paediatrics, Gemeinschaftskrankenhaus Herdecke, Herdecke, Germany
| | | | - A Galler
- Charité - University Medicine of Berlin, Pediatric Endocrinology and Diabetology, Berlin, Germany
| | - G Berger
- Medical University Vienna, Dept. of Pediatric and Adolescent Medicine, Vienna, Austria
| | - R W Holl
- University of Ulm, Institute of Epidemiology and Medical Biometry, Central Institute for Biomedical Technology, Ulm, Germany.,German Centre for Diabetes Research (DZD), Munich, Germany
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17
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Nelson B, Amminger GP, Yuen HP, Markulev C, Lavoie S, Schäfer MR, Hartmann JA, Mossaheb N, Schlögelhofer M, Smesny S, Hickie IB, Berger G, Chen EYH, de Haan L, Nieman DH, Nordentoft M, Riecher-Rössler A, Verma S, Thompson A, Yung AR, McGorry PD. NEURAPRO: a multi-centre RCT of omega-3 polyunsaturated fatty acids versus placebo in young people at ultra-high risk of psychotic disorders-medium-term follow-up and clinical course. NPJ Schizophr 2018; 4:11. [PMID: 29941938 PMCID: PMC6018097 DOI: 10.1038/s41537-018-0052-x] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 05/04/2018] [Accepted: 05/11/2018] [Indexed: 11/09/2022]
Abstract
This study reports a medium-term follow-up of a randomised, double-blind, placebo-controlled trial of omega-3 polyunsaturated fatty acids (PUFA) in ultra-high risk for psychosis (UHR) patients. Primary outcomes of interest were transition to psychosis and symptomatic and functional outcome. A secondary aim was to investigate clinical predictors of medium-term outcome. Three hundred four UHR participants were recruited across 10 specialised early psychosis services in Australia, Asia, and Europe. The intervention consisted of 1.4 g/daily of omega-3 PUFA or placebo, plus up to 20 sessions of cognitive-behavioural case management (CBCM), over the 6-month study period, with participants receiving further CBCM sessions on basis of need between months 6-12. Mean time to follow-up was 3.4 (median = 3.3; SD = 0.9) years. There was a modest increase in transitions between 12-month and medium-term follow-up (11-13%) and substantial improvement in symptoms and functioning between baseline and follow-up, with no differences between the treatment groups. Most improvement had been achieved by end of the intervention. 55% of the sample received mental health treatment between end of intervention and follow-up. Omega-3 PUFA did not provide additional benefits to good quality psychosocial intervention over the medium term. Although most improvement had been achieved by end of intervention the substantial rates of post-intervention mental health service use indicate longer-term clinical need in UHR patients. The post-intervention phase treatment or the longer-term effect of CBCM, or a combination of the two, may have contributed to maintaining the gains achieved during the intervention phase and prevented significant deterioration after this time.
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Affiliation(s)
- B Nelson
- Orygen, the National Centre of Excellence in Youth Mental Health, Melbourne, Australia. .,Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia.
| | - G P Amminger
- Orygen, the National Centre of Excellence in Youth Mental Health, Melbourne, Australia.,Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia.,Department of Psychiatry, Medical University of Vienna, Vienna, Austria
| | - H P Yuen
- Orygen, the National Centre of Excellence in Youth Mental Health, Melbourne, Australia.,Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | - C Markulev
- Orygen, the National Centre of Excellence in Youth Mental Health, Melbourne, Australia.,Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | - S Lavoie
- Orygen, the National Centre of Excellence in Youth Mental Health, Melbourne, Australia.,Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | - M R Schäfer
- Orygen, the National Centre of Excellence in Youth Mental Health, Melbourne, Australia.,Department of Psychiatry, Medical University of Vienna, Vienna, Austria
| | - J A Hartmann
- Orygen, the National Centre of Excellence in Youth Mental Health, Melbourne, Australia.,Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | - N Mossaheb
- Department of Psychiatry and Psychotherapy, Clinical Division of Social Psychiatry, Medical University of Vienna, Vienna, Austria
| | - M Schlögelhofer
- Department of Psychiatry, Medical University of Vienna, Vienna, Austria
| | - S Smesny
- University Hospital Jena, Jena, Germany
| | - I B Hickie
- Brain and Mind Research Institute, University of Sydney, Sydney, Australia
| | - G Berger
- Child and Adolescent Psychiatric Service of the Canton of Zurich, Zurich, Switzerland
| | - E Y H Chen
- Department of Psychiatry, University of Hong Kong, Pokfulam, Hong Kong
| | - L de Haan
- Academic Medical Center, Amsterdam, The Netherlands
| | - D H Nieman
- Academic Medical Center, Amsterdam, The Netherlands
| | - M Nordentoft
- Psychiatric Centre Bispebjerg, Copenhagen, Denmark
| | | | - S Verma
- Institute of Mental Health, Singapore, Singapore
| | - A Thompson
- Orygen, the National Centre of Excellence in Youth Mental Health, Melbourne, Australia.,Division of Mental Health and Wellbeing, Warwick Medical School, University of Warwick, Coventry, UK.,North Warwickshire Early Intervention in Psychosis Service, Coventry and Warwickshire NHS Partnership Trust, Coventry, UK
| | - A R Yung
- Orygen, the National Centre of Excellence in Youth Mental Health, Melbourne, Australia.,Division of Psychology and Mental Health, University of Manchester, Manchester, UK.,Greater Manchester Mental Health NHS Foundation Trust, Manchester, UK
| | - P D McGorry
- Orygen, the National Centre of Excellence in Youth Mental Health, Melbourne, Australia.,Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
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18
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Winkler T, Hoenig E, Huber G, Janssen R, Fritsch D, Gildenhaar R, Berger G, Morlock MM, Schilling AF. Osteoclastic Bioresorption of Biomaterials: Two- and Three-Dimensional Imaging and Quantification. Int J Artif Organs 2018. [DOI: 10.1177/039139881003300404] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Purpose Bioresorbable materials have been developed in the hope that the body will replace them with newly formed tissue. The first step of this remodeling process in bone is the bioresorption of the material by osteoclasts. The aim of this study was to analyze osteoclastic resorption of biomaterials in vitro using the commonly used two-dimensional methods of light-microscopy (LM) and scanning electron microscopy (SEM) in comparison with infinite focus microscopy (IFM), a recently developed imaging method allowing for three-dimensional surface analysis. Methods Human hematopoietic stem cells were cultivated in the presence of the cytokines M-CSF and RANK-L for 4 weeks directly on dentin and a calcium phosphate cement. Osteoclast development was surveyed with standard techniques. After removal of the cells, resorption was characterized and quantified by LM, SEM and IFM. Results Osteoclast cultures on the biomaterials presented the typical osteoclast-specific markers. On dentin samples LM, SEM as well as IFM allowed for discrimination of resorption. Quantification of the resorbed area showed a linear correlation between the results (LM vs. SEM: r=0.996, p=0.004; SEM vs. IFM: r=0.989, p=0.011; IFM vs. LM: r=0.995). It was not possible to demarcate resorption pits on GB14 using LM or SEM. With IFM, resorption on GB14 could be visualized and quantified two- and three-dimensionally. Conclusions In this paper we introduce IFM as a technology for three-dimensional visualization and quantification of resorption of biomaterials. Better understanding of the bioresorption of biomaterials may help in the design of better materials and might therefore constitute an important step on the avenue to the development of artificial bone.
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Affiliation(s)
- Thomas Winkler
- Biomechanics Section, Hamburg University of Technology, Hamburg - Germany
| | - Elisa Hoenig
- Biomechanics Section, Hamburg University of Technology, Hamburg - Germany
| | - Gerd Huber
- Biomechanics Section, Hamburg University of Technology, Hamburg - Germany
| | - Rolf Janssen
- Institute Advanced Ceramics, Hamburg University of Technology, Hamburg - Germany
| | - Daniel Fritsch
- Institute Advanced Ceramics, Hamburg University of Technology, Hamburg - Germany
| | - Renate Gildenhaar
- Federal Institute for Materials Research and Testing, Berlin - Germany
| | - Georg Berger
- Federal Institute for Materials Research and Testing, Berlin - Germany
| | - Michael M. Morlock
- Biomechanics Section, Hamburg University of Technology, Hamburg - Germany
| | - Arndt F. Schilling
- Biomechanics Section, Hamburg University of Technology, Hamburg - Germany
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19
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Adel-Khattab D, Giacomini F, Gildenhaar R, Berger G, Gomes C, Linow U, Hardt M, Peleska B, Günster J, Stiller M, Houshmand A, Ghaffar KA, Gamal A, El-Mofty M, Knabe C. Development of a synthetic tissue engineered three-dimensional printed bioceramic-based bone graft with homogenously distributed osteoblasts and mineralizing bone matrix in vitro. J Tissue Eng Regen Med 2017; 12:44-58. [PMID: 27860335 DOI: 10.1002/term.2362] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [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: 04/01/2016] [Revised: 08/11/2016] [Accepted: 11/09/2016] [Indexed: 11/11/2022]
Abstract
Over the last decade there have been increasing efforts to develop three-dimensional (3D) scaffolds for bone tissue engineering from bioactive ceramics with 3D printing emerging as a promising technology. The overall objective of the present study was to generate a tissue engineered synthetic bone graft with homogenously distributed osteoblasts and mineralizing bone matrix in vitro, thereby mimicking the advantageous properties of autogenous bone grafts and facilitating usage for reconstructing segmental discontinuity defects in vivo. To this end, 3D scaffolds were developed from a silica-containing calcium alkali orthophosphate, using, first, a replica technique - the Schwartzwalder-Somers method - and, second, 3D printing, (i.e. rapid prototyping). The mechanical and physical scaffold properties and their potential to facilitate homogenous colonization by osteogenic cells and extracellular bone matrix formation throughout the porous scaffold architecture were examined. Osteoblastic cells were dynamically cultured for 7 days on both scaffold types with two different concentrations of 1.5 and 3 × 109 cells/l. The amount of cells and bone matrix formed and osteogenic marker expression were evaluated using hard tissue histology, immunohistochemical and histomorphometric analysis. 3D-printed scaffolds (RPS) exhibited more micropores, greater compressive strength and silica release. RPS seeded with 3 × 109 cells/l displayed greatest cell and extracellular matrix formation, mineralization and osteocalcin expression. In conclusion, RPS displayed superior mechanical and biological properties and facilitated generating a tissue engineered synthetic bone graft in vitro, which mimics the advantageous properties of autogenous bone grafts, by containing homogenously distributed terminally differentiated osteoblasts and mineralizing bone matrix and therefore is suitable for subsequent in vivo implantation for regenerating segmental discontinuity bone defects. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Doaa Adel-Khattab
- Department of Experimental Orofacial Medicine, School of Dental Medicine, Philipps University, Marburg, Germany.,Department of Oral Periodontology, School of Dentistry, Ain Shams University, Egypt
| | - Francesca Giacomini
- Department of Experimental Orofacial Medicine, School of Dental Medicine, Philipps University, Marburg, Germany
| | - Renate Gildenhaar
- BAM Federal Institute for Materials Research and Testing, Berlin, Germany
| | - Georg Berger
- BAM Federal Institute for Materials Research and Testing, Berlin, Germany
| | - Cynthia Gomes
- BAM Federal Institute for Materials Research and Testing, Berlin, Germany
| | - Ulf Linow
- BAM Federal Institute for Materials Research and Testing, Berlin, Germany
| | - Martin Hardt
- Imaging Facility, Medical School, Justus Liebig University of Giessen
| | - Barbara Peleska
- Department of Prosthodontics, School of Dentistry, Philipps University, Marburg, Germany
| | - Jens Günster
- BAM Federal Institute for Materials Research and Testing, Berlin, Germany
| | - Michael Stiller
- Department of Experimental Orofacial Medicine, School of Dental Medicine, Philipps University, Marburg, Germany
| | - Alireza Houshmand
- Department of Experimental Orofacial Medicine, School of Dental Medicine, Philipps University, Marburg, Germany
| | - Khaled Abdel Ghaffar
- Department of Oral Periodontology, School of Dentistry, Ain Shams University, Egypt
| | - Ahmed Gamal
- Department of Oral Periodontology, School of Dentistry, Ain Shams University, Egypt
| | - Mohamed El-Mofty
- Department of Oral Periodontology, School of Dentistry, Ain Shams University, Egypt
| | - Christine Knabe
- Department of Experimental Orofacial Medicine, School of Dental Medicine, Philipps University, Marburg, Germany
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20
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Cajita M, Baumgartner E, Berben L, Denhaerynck K, Helmy R, Schönfeld S, Berger G, Vetter C, Dobbels F, Russell C, De Geest S, O. The BRIGHT Study Team. Do Heart Transplant Centers Have a Multidisciplinary Team as Indicated by ISHLT Guidelines? Findings from the International BRIGHT Study. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.1005] [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] Open
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21
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Lei P, Ayton S, Appukuttan AT, Moon S, Duce JA, Volitakis I, Cherny R, Wood SJ, Greenough M, Berger G, Pantelis C, McGorry P, Yung A, Finkelstein DI, Bush AI. Lithium suppression of tau induces brain iron accumulation and neurodegeneration. Mol Psychiatry 2017; 22:396-406. [PMID: 27400857 DOI: 10.1038/mp.2016.96] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [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: 01/08/2016] [Revised: 04/25/2016] [Accepted: 05/09/2016] [Indexed: 02/05/2023]
Abstract
Lithium is a first-line therapy for bipolar affective disorder. However, various adverse effects, including a Parkinson-like hand tremor, often limit its use. The understanding of the neurobiological basis of these side effects is still very limited. Nigral iron elevation is also a feature of Parkinsonian degeneration that may be related to soluble tau reduction. We found that magnetic resonance imaging T2 relaxation time changes in subjects commenced on lithium therapy were consistent with iron elevation. In mice, lithium treatment lowers brain tau levels and increases nigral and cortical iron elevation that is closely associated with neurodegeneration, cognitive loss and parkinsonian features. In neuronal cultures lithium attenuates iron efflux by lowering tau protein that traffics amyloid precursor protein to facilitate iron efflux. Thus, tau- and amyloid protein precursor-knockout mice were protected against lithium-induced iron elevation and neurotoxicity. These findings challenge the appropriateness of lithium as a potential treatment for disorders where brain iron is elevated (for example, Alzheimer's disease), and may explain lithium-associated motor symptoms in susceptible patients.
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Affiliation(s)
- P Lei
- Department of Neurology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Sichuan, China.,Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville, VIC, Australia
| | - S Ayton
- Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville, VIC, Australia
| | - A T Appukuttan
- Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville, VIC, Australia
| | - S Moon
- Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville, VIC, Australia
| | - J A Duce
- Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville, VIC, Australia.,Faculty of Biological Sciences, School of Biomedical Sciences, University of Leeds, West Yorkshire, UK
| | - I Volitakis
- Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville, VIC, Australia
| | - R Cherny
- Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville, VIC, Australia
| | - S J Wood
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, University of Melbourne and Melbourne Health, Parkville, VIC, Australia.,School of Psychology, University of Birmingham, Birmingham, UK
| | - M Greenough
- Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville, VIC, Australia
| | - G Berger
- ORYGEN Research Centre, University of Melbourne and Melbourne Health, Parkville, VIC, Australia.,Department of Child and Adolescent Psychiatry, University of Zürich, Zurich, Switzerland
| | - C Pantelis
- Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville, VIC, Australia.,Melbourne Neuropsychiatry Centre, Department of Psychiatry, University of Melbourne and Melbourne Health, Parkville, VIC, Australia.,Centre for Neural Engineering, Department of Electrical and Electronic Engineering, University of Melbourne, Parkville, VIC, Australia
| | - P McGorry
- ORYGEN Research Centre, University of Melbourne and Melbourne Health, Parkville, VIC, Australia
| | - A Yung
- Institute of Brain, Behaviour and Mental Health, University of Manchester and Greater Manchester West NHS Mental Health Trust, Manchester, UK
| | - D I Finkelstein
- Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville, VIC, Australia
| | - A I Bush
- Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville, VIC, Australia
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22
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23
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Chikh Alard I, Soubhye J, Berger G, Gelbcke M, Spassov S, Amighi K, Goole J, Meyer F. Triple-stimuli responsive polymers with fine tuneable magnetic responses. Polym Chem 2017. [DOI: 10.1039/c7py00218a] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The formation of multi-stimuli responsive polymers exhibiting magnetic, pH and light sensitivity is reported.
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Affiliation(s)
- I. Chikh Alard
- Laboratory of Pharmaceutics and Biopharmaceutics
- Faculty of Pharmacy
- Université Libre de Bruxelles
- 1050 Brussels
- Belgium
| | - J. Soubhye
- Laboratory of Therapeutic Chemistry
- Faculty of Pharmacy
- Université Libre de Bruxelles
- 1050 Brussels
- Belgium
| | - G. Berger
- Laboratory of Therapeutic Chemistry
- Faculty of Pharmacy
- Université Libre de Bruxelles
- 1050 Brussels
- Belgium
| | - M. Gelbcke
- Laboratory of Therapeutic Chemistry
- Faculty of Pharmacy
- Université Libre de Bruxelles
- 1050 Brussels
- Belgium
| | - S. Spassov
- Institut Royal Météorologique
- Centre de Physique du Globe
- 5670 Dourbes (Viroinval)
- Belgium
| | - K. Amighi
- Laboratory of Pharmaceutics and Biopharmaceutics
- Faculty of Pharmacy
- Université Libre de Bruxelles
- 1050 Brussels
- Belgium
| | - J. Goole
- Laboratory of Pharmaceutics and Biopharmaceutics
- Faculty of Pharmacy
- Université Libre de Bruxelles
- 1050 Brussels
- Belgium
| | - F. Meyer
- Laboratory of Biopolymers and Supramolecular Nanomaterials
- Faculty of Pharmacy
- Université Libre de Bruxelles
- 1050 Brussels
- Belgium
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24
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Berger G, Robeyns K, Soubhye J, Wintjens R, Meyer F. Halogen bonding in a multi-connected 1,2,2-triiodo-alkene involving geminal and/or vicinal iodines: a crystallographic and DFT study. CrystEngComm 2016. [DOI: 10.1039/c5ce02230d] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Four halogen-bonded organizations of a 1,2,2-triiodo-alkene involving geminal and/or vicinal iodine atoms were studied both by X-ray diffraction and density functional theory (DFT).
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Affiliation(s)
- G. Berger
- Chimie Pharmaceutique Organique
- Faculty of Pharmacy
- Université Libre de Bruxelles (ULB)
- 1050 Bruxelles, Belgium
- Department of Chemistry
| | - K. Robeyns
- Institute of Condensed Matter and Nanosciences (IMCN)
- Université Catholique de Louvain (UCL)
- 1348 Louvain-la-Neuve, Belgium
| | - J. Soubhye
- Chimie Pharmaceutique Organique
- Faculty of Pharmacy
- Université Libre de Bruxelles (ULB)
- 1050 Bruxelles, Belgium
| | - R. Wintjens
- Laboratory of Biopolymers and Supramolecular Nanomaterials
- Faculty of Pharmacy
- Université Libre de Bruxelles (ULB)
- 1050 Bruxelles, Belgium
| | - F. Meyer
- Laboratory of Biopolymers and Supramolecular Nanomaterials
- Faculty of Pharmacy
- Université Libre de Bruxelles (ULB)
- 1050 Bruxelles, Belgium
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25
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Korthuis PM, Berger G, Bakker B, Rozenveld-Geugien M, Jaques J, de Haan G, Schuringa JJ, Vellenga E, Schepers H. CITED2-mediated human hematopoietic stem cell maintenance is critical for acute myeloid leukemia. Leukemia 2015; 29:625-35. [PMID: 25184385 DOI: 10.1038/leu.2014.259] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Revised: 08/01/2014] [Accepted: 08/22/2014] [Indexed: 02/07/2023]
Abstract
As the transcriptional coactivator CITED2 (CBP/p300-interacting-transactivator-with-an ED-rich-tail 2) can be overexpressed in acute myeloid leukemia (AML) cells, we analyzed the consequences of high CITED2 expression in normal and AML cells. CITED2 overexpression in normal CD34(+) cells resulted in enhanced hematopoietic stem and progenitor cell (HSPC) output in vitro, as well as in better hematopoietic stem cell (HSC) engraftability in NSG (NOD.Cg-Prkdcscid Il2rgtm1Wjl/SzJ) mice. This was because of an enhanced quiescence and maintenance of CD34(+)CD38(-) HSCs, due in part to an increased expression of the cyclin-dependent kinase inhibitor CDKN1A. We demonstrated that PU.1 is a critical regulator of CITED2, as PU.1 repressed CITED2 expression in a DNA methyltransferase 3A/B (DNMT3A/B)-dependent manner in normal CD34(+) cells. CD34(+) cells from a subset of AML patients displayed higher expression levels of CITED2 as compared with normal CD34(+) HSPCs, and knockdown of CITED2 in AML CD34(+) cells led to a loss of long-term expansion, both in vitro and in vivo. The higher CITED2 expression resulted from reduced PU.1 activity and/or dysfunction of mutated DNMT3A/B. Collectively, our data demonstrate that increased CITED2 expression results in better HSC maintenance. In concert with low PU.1 levels, this could result in a perturbed myeloid differentiation program that contributes to leukemia maintenance.
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MESH Headings
- Animals
- Antigens, CD34/genetics
- Antigens, CD34/metabolism
- Cell Proliferation
- Cyclin-Dependent Kinase Inhibitor p21/genetics
- Cyclin-Dependent Kinase Inhibitor p21/metabolism
- DNA (Cytosine-5-)-Methyltransferases/genetics
- DNA (Cytosine-5-)-Methyltransferases/metabolism
- DNA Methyltransferase 3A
- Female
- Gene Expression Regulation, Leukemic
- Graft Survival
- Hematopoietic Stem Cell Transplantation
- Hematopoietic Stem Cells/metabolism
- Hematopoietic Stem Cells/pathology
- Humans
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/metabolism
- Leukemia, Myeloid, Acute/pathology
- Mice
- Mice, Inbred NOD
- Mutation
- Proto-Oncogene Proteins/genetics
- Proto-Oncogene Proteins/metabolism
- Repressor Proteins/genetics
- Repressor Proteins/metabolism
- Signal Transduction
- Trans-Activators/genetics
- Trans-Activators/metabolism
- Transplantation, Heterologous
- DNA Methyltransferase 3B
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Affiliation(s)
- P M Korthuis
- Department of Experimental Hematology, Cancer Research Center Groningen, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - G Berger
- Department of Experimental Hematology, Cancer Research Center Groningen, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - B Bakker
- Department of Experimental Hematology, Cancer Research Center Groningen, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - M Rozenveld-Geugien
- Department of Experimental Hematology, Cancer Research Center Groningen, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - J Jaques
- Department of Experimental Hematology, Cancer Research Center Groningen, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - G de Haan
- Department of Stem Cell Biology, European Research Institute for the Biology of Aging (ERIBA), University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - J J Schuringa
- Department of Experimental Hematology, Cancer Research Center Groningen, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - E Vellenga
- Department of Experimental Hematology, Cancer Research Center Groningen, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - H Schepers
- Department of Experimental Hematology, Cancer Research Center Groningen, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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26
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Bridges JC, Schwenzer SP, Leveille R, Westall F, Wiens RC, Mangold N, Bristow T, Edwards P, Berger G. Diagenesis and clay mineral formation at Gale Crater, Mars. J Geophys Res Planets 2015; 120:1-19. [PMID: 26213668 PMCID: PMC4508961 DOI: 10.1002/2014je004757] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Revised: 12/05/2014] [Accepted: 12/09/2014] [Indexed: 05/22/2023]
Abstract
The Mars Science Laboratory rover Curiosity found host rocks of basaltic composition and alteration assemblages containing clay minerals at Yellowknife Bay, Gale Crater. On the basis of the observed host rock and alteration minerals, we present results of equilibrium thermochemical modeling of the Sheepbed mudstones of Yellowknife Bay in order to constrain the formation conditions of its secondary mineral assemblage. Building on conclusions from sedimentary observations by the Mars Science Laboratory team, we assume diagenetic, in situ alteration. The modeling shows that the mineral assemblage formed by the reaction of a CO2-poor and oxidizing, dilute aqueous solution (Gale Portage Water) in an open system with the Fe-rich basaltic-composition sedimentary rocks at 10-50°C and water/rock ratio (mass of rock reacted with the starting fluid) of 100-1000, pH of ∽7.5-12. Model alteration assemblages predominantly contain phyllosilicates (Fe-smectite, chlorite), the bulk composition of a mixture of which is close to that of saponite inferred from Chemistry and Mineralogy data and to that of saponite observed in the nakhlite Martian meteorites and terrestrial analogues. To match the observed clay mineral chemistry, inhomogeneous dissolution dominated by the amorphous phase and olivine is required. We therefore deduce a dissolving composition of approximately 70% amorphous material, with 20% olivine, and 10% whole rock component.
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Affiliation(s)
- J C Bridges
- Space Research Centre, Department of Physics and Astronomy, University of LeicesterLeicester, UK
- Correspondence to: J. C. Bridges,,
| | - S P Schwenzer
- Department of Physical Sciences, Open UniversityMilton Keynes, UK
| | - R Leveille
- Department of Earth and Planetary Science, McGill UniversityMontreal, Quebec, Canada
| | - F Westall
- Centre de Biophysique Moléculaire, CNRSOrléans CEDEX2, France
| | - R C Wiens
- Space Remote Sensing, Los Alamos National LaboratoryLos Alamos, New Mexico, USA
| | - N Mangold
- Laboratoire Planétologie et Géodynamique de Nantes, LPGN/CNRS UMR6112 and Université de NantesNantes, France
| | - T Bristow
- Exobiology Branch, NASA Ames Research CenterMoffett Field, California, USA
| | - P Edwards
- Space Research Centre, Department of Physics and Astronomy, University of LeicesterLeicester, UK
| | - G Berger
- IRAP (CNRS-Univ. P. Sabatier)Toulouse, France
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27
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Abstract
Die Größe des Hämocyanin-Moleküls und seiner Spaltprodukte wurde elektronenoptisch vermessen. Die erste Dissoziationsstufe besteht in einer Längsspaltung, die entstehenden halben Moleküle sind stäbchenförmig mit einer Länge von 40 mμ und einem Durchmesser von 12 mμ. Die weitere Dissoziation erfolgt wahrscheinlich durch Querspaltung dieser Stäbchen in je vier annähernd kugelförmige Untereinheiten.
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Affiliation(s)
- Gerhard Schramm
- Aus dem Max-Planck-Institut für Biochemie, Abt. Virusforschung, Tübingen
| | - Georg Berger
- Aus dem Max-Planck-Institut für Biochemie, Abt. Virusforschung, Tübingen
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28
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Berger G, Rami-Merhar B, Waldhör T, Barrientos I, Sonnenstatter S, Kunkel D, Schober E, Karwautz A, Wagner G. Heimliche Über- und/oder Unterdosierung von Insulin bei Jugendlichen mit Typ 1 Diabetes als Hinweis auf internalisierende psychiatrische Komorbidität. DIABETOL STOFFWECHS 2014. [DOI: 10.1055/s-0034-1374862] [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]
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29
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Rami-Merhar B, Wagner G, Brunmayr F, Muehlehner M, Karwautz A, Berger G. Intervention with motivational Interviewing and cognitive behavioral elements in DMT1-adolescents with suboptimal metabolic control. DIABETOL STOFFWECHS 2014. [DOI: 10.1055/s-0034-1375115] [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]
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30
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Vaniman DT, Bish DL, Ming DW, Bristow TF, Morris RV, Blake DF, Chipera SJ, Morrison SM, Treiman AH, Rampe EB, Rice M, Achilles CN, Grotzinger JP, McLennan SM, Williams J, Bell JF, Newsom HE, Downs RT, Maurice S, Sarrazin P, Yen AS, Morookian JM, Farmer JD, Stack K, Milliken RE, Ehlmann BL, Sumner DY, Berger G, Crisp JA, Hurowitz JA, Anderson R, Des Marais DJ, Stolper EM, Edgett KS, Gupta S, Spanovich N. Mineralogy of a mudstone at Yellowknife Bay, Gale crater, Mars. Science 2014. [PMID: 24324271 DOI: 10.1126/science1243480] [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: 05/10/2023]
Abstract
Sedimentary rocks at Yellowknife Bay (Gale crater) on Mars include mudstone sampled by the Curiosity rover. The samples, John Klein and Cumberland, contain detrital basaltic minerals, calcium sulfates, iron oxide or hydroxides, iron sulfides, amorphous material, and trioctahedral smectites. The John Klein smectite has basal spacing of ~10 angstroms, indicating little interlayer hydration. The Cumberland smectite has basal spacing at both ~13.2 and ~10 angstroms. The larger spacing suggests a partially chloritized interlayer or interlayer magnesium or calcium facilitating H2O retention. Basaltic minerals in the mudstone are similar to those in nearby eolian deposits. However, the mudstone has far less Fe-forsterite, possibly lost with formation of smectite plus magnetite. Late Noachian/Early Hesperian or younger age indicates that clay mineral formation on Mars extended beyond Noachian time.
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Affiliation(s)
- D T Vaniman
- Planetary Science Institute, Tucson, AZ 85719, USA
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Grotzinger JP, Sumner DY, Kah LC, Stack K, Gupta S, Edgar L, Rubin D, Lewis K, Schieber J, Mangold N, Milliken R, Conrad PG, DesMarais D, Farmer J, Siebach K, Calef F, Hurowitz J, McLennan SM, Ming D, Vaniman D, Crisp J, Vasavada A, Edgett KS, Malin M, Blake D, Gellert R, Mahaffy P, Wiens RC, Maurice S, Grant JA, Wilson S, Anderson RC, Beegle L, Arvidson R, Hallet B, Sletten RS, Rice M, Bell J, Griffes J, Ehlmann B, Anderson RB, Bristow TF, Dietrich WE, Dromart G, Eigenbrode J, Fraeman A, Hardgrove C, Herkenhoff K, Jandura L, Kocurek G, Lee S, Leshin LA, Leveille R, Limonadi D, Maki J, McCloskey S, Meyer M, Minitti M, Newsom H, Oehler D, Okon A, Palucis M, Parker T, Rowland S, Schmidt M, Squyres S, Steele A, Stolper E, Summons R, Treiman A, Williams R, Yingst A, Team MS, Kemppinen O, Bridges N, Johnson JR, Cremers D, Godber A, Wadhwa M, Wellington D, McEwan I, Newman C, Richardson M, Charpentier A, Peret L, King P, Blank J, Weigle G, Li S, Robertson K, Sun V, Baker M, Edwards C, Farley K, Miller H, Newcombe M, Pilorget C, Brunet C, Hipkin V, Leveille R, Marchand G, Sanchez PS, Favot L, Cody G, Fluckiger L, Lees D, Nefian A, Martin M, Gailhanou M, Westall F, Israel G, Agard C, Baroukh J, Donny C, Gaboriaud A, Guillemot P, Lafaille V, Lorigny E, Paillet A, Perez R, Saccoccio M, Yana C, Armiens-Aparicio C, Rodriguez JC, Blazquez IC, Gomez FG, Gomez-Elvira J, Hettrich S, Malvitte AL, Jimenez MM, Martinez-Frias J, Martin-Soler J, Martin-Torres FJ, Jurado AM, Mora-Sotomayor L, Caro GM, Lopez SN, Peinado-Gonzalez V, Pla-Garcia J, Manfredi JAR, Romeral-Planello JJ, Fuentes SAS, Martinez ES, Redondo JT, Urqui-O'Callaghan R, Mier MPZ, Chipera S, Lacour JL, Mauchien P, Sirven JB, Manning H, Fairen A, Hayes A, Joseph J, Sullivan R, Thomas P, Dupont A, Lundberg A, Melikechi N, Mezzacappa A, DeMarines J, Grinspoon D, Reitz G, Prats B, Atlaskin E, Genzer M, Harri AM, Haukka H, Kahanpaa H, Kauhanen J, Paton M, Polkko J, Schmidt W, Siili T, Fabre C, Wray J, Wilhelm MB, Poitrasson F, Patel K, Gorevan S, Indyk S, Paulsen G, Bish D, Gondet B, Langevin Y, Geffroy C, Baratoux D, Berger G, Cros A, d'Uston C, Forni O, Gasnault O, Lasue J, Lee QM, Meslin PY, Pallier E, Parot Y, Pinet P, Schroder S, Toplis M, Lewin E, Brunner W, Heydari E, Achilles C, Sutter B, Cabane M, Coscia D, Szopa C, Robert F, Sautter V, Le Mouelic S, Nachon M, Buch A, Stalport F, Coll P, Francois P, Raulin F, Teinturier S, Cameron J, Clegg S, Cousin A, DeLapp D, Dingler R, Jackson RS, Johnstone S, Lanza N, Little C, Nelson T, Williams RB, Jones A, Kirkland L, Baker B, Cantor B, Caplinger M, Davis S, Duston B, Fay D, Harker D, Herrera P, Jensen E, Kennedy MR, Krezoski G, Krysak D, Lipkaman L, McCartney E, McNair S, Nixon B, Posiolova L, Ravine M, Salamon A, Saper L, Stoiber K, Supulver K, Van Beek J, Van Beek T, Zimdar R, French KL, Iagnemma K, Miller K, Goesmann F, Goetz W, Hviid S, Johnson M, Lefavor M, Lyness E, Breves E, Dyar MD, Fassett C, Edwards L, Haberle R, Hoehler T, Hollingsworth J, Kahre M, Keely L, McKay C, Bleacher L, Brinckerhoff W, Choi D, Dworkin JP, Floyd M, Freissinet C, Garvin J, Glavin D, Harpold D, Martin DK, McAdam A, Pavlov A, Raaen E, Smith MD, Stern J, Tan F, Trainer M, Posner A, Voytek M, Aubrey A, Behar A, Blaney D, Brinza D, Christensen L, DeFlores L, Feldman J, Feldman S, Flesch G, Jun I, Keymeulen D, Mischna M, Morookian JM, Pavri B, Schoppers M, Sengstacken A, Simmonds JJ, Spanovich N, Juarez MDLT, Webster CR, Yen A, Archer PD, Cucinotta F, Jones JH, Morris RV, Niles P, Rampe E, Nolan T, Fisk M, Radziemski L, Barraclough B, Bender S, Berman D, Dobrea EN, Tokar R, Cleghorn T, Huntress W, Manhes G, Hudgins J, Olson T, Stewart N, Sarrazin P, Vicenzi E, Bullock M, Ehresmann B, Hamilton V, Hassler D, Peterson J, Rafkin S, Zeitlin C, Fedosov F, Golovin D, Karpushkina N, Kozyrev A, Litvak M, Malakhov A, Mitrofanov I, Mokrousov M, Nikiforov S, Prokhorov V, Sanin A, Tretyakov V, Varenikov A, Vostrukhin A, Kuzmin R, Clark B, Wolff M, Botta O, Drake D, Bean K, Lemmon M, Schwenzer SP, Lee EM, Sucharski R, Hernandez MADP, Avalos JJB, Ramos M, Kim MH, Malespin C, Plante I, Muller JP, Navarro-Gonzalez R, Ewing R, Boynton W, Downs R, Fitzgibbon M, Harshman K, Morrison S, Kortmann O, Williams A, Lugmair G, Wilson MA, Jakosky B, Balic-Zunic T, Frydenvang J, Jensen JK, Kinch K, Koefoed A, Madsen MB, Stipp SLS, Boyd N, Campbell JL, Perrett G, Pradler I, VanBommel S, Jacob S, Owen T, Savijarvi H, Boehm E, Bottcher S, Burmeister S, Guo J, Kohler J, Garcia CM, Mueller-Mellin R, Wimmer-Schweingruber R, Bridges JC, McConnochie T, Benna M, Franz H, Bower H, Brunner A, Blau H, Boucher T, Carmosino M, Atreya S, Elliott H, Halleaux D, Renno N, Wong M, Pepin R, Elliott B, Spray J, Thompson L, Gordon S, Ollila A, Williams J, Vasconcelos P, Bentz J, Nealson K, Popa R, Moersch J, Tate C, Day M, Francis R, McCullough E, Cloutis E, ten Kate IL, Scholes D, Slavney S, Stein T, Ward J, Berger J, Moores JE. A Habitable Fluvio-Lacustrine Environment at Yellowknife Bay, Gale Crater, Mars. Science 2013; 343:1242777. [DOI: 10.1126/science.1242777] [Citation(s) in RCA: 578] [Impact Index Per Article: 52.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Vaniman DT, Bish DL, Ming DW, Bristow TF, Morris RV, Blake DF, Chipera SJ, Morrison SM, Treiman AH, Rampe EB, Rice M, Achilles CN, Grotzinger JP, McLennan SM, Williams J, Bell JF, Newsom HE, Downs RT, Maurice S, Sarrazin P, Yen AS, Morookian JM, Farmer JD, Stack K, Milliken RE, Ehlmann BL, Sumner DY, Berger G, Crisp JA, Hurowitz JA, Anderson R, Des Marais DJ, Stolper EM, Edgett KS, Gupta S, Spanovich N, Agard C, Alves Verdasca JA, Anderson R, Archer D, Armiens-Aparicio C, Arvidson R, Atlaskin E, Atreya S, Aubrey A, Baker B, Baker M, Balic-Zunic T, Baratoux D, Baroukh J, Barraclough B, Bean K, Beegle L, Behar A, Bender S, Benna M, Bentz J, Berger J, Berman D, Blanco Avalos JJ, Blaney D, Blank J, Blau H, Bleacher L, Boehm E, Botta O, Bottcher S, Boucher T, Bower H, Boyd N, Boynton B, Breves E, Bridges J, Bridges N, Brinckerhoff W, Brinza D, Brunet C, Brunner A, Brunner W, Buch A, Bullock M, Burmeister S, Cabane M, Calef F, Cameron J, Campbell JI, Cantor B, Caplinger M, Caride Rodriguez J, Carmosino M, Carrasco Blazquez I, Charpentier A, Choi D, Clark B, Clegg S, Cleghorn T, Cloutis E, Cody G, Coll P, Conrad P, Coscia D, Cousin A, Cremers D, Cros A, Cucinotta F, d'Uston C, Davis S, Day MK, de la Torre Juarez M, DeFlores L, DeLapp D, DeMarines J, Dietrich W, Dingler R, Donny C, Drake D, Dromart G, Dupont A, Duston B, Dworkin J, Dyar MD, Edgar L, Edwards C, Edwards L, Ehresmann B, Eigenbrode J, Elliott B, Elliott H, Ewing R, Fabre C, Fairen A, Farley K, Fassett C, Favot L, Fay D, Fedosov F, Feldman J, Feldman S, Fisk M, Fitzgibbon M, Flesch G, Floyd M, Fluckiger L, Forni O, Fraeman A, Francis R, Francois P, Franz H, Freissinet C, French KL, Frydenvang J, Gaboriaud A, Gailhanou M, Garvin J, Gasnault O, Geffroy C, Gellert R, Genzer M, Glavin D, Godber A, Goesmann F, Goetz W, Golovin D, Gomez Gomez F, Gomez-Elvira J, Gondet B, Gordon S, Gorevan S, Grant J, Griffes J, Grinspoon D, Guillemot P, Guo J, Guzewich S, Haberle R, Halleaux D, Hallet B, Hamilton V, Hardgrove C, Harker D, Harpold D, Harri AM, Harshman K, Hassler D, Haukka H, Hayes A, Herkenhoff K, Herrera P, Hettrich S, Heydari E, Hipkin V, Hoehler T, Hollingsworth J, Hudgins J, Huntress W, Hviid S, Iagnemma K, Indyk S, Israel G, Jackson R, Jacob S, Jakosky B, Jensen E, Jensen JK, Johnson J, Johnson M, Johnstone S, Jones A, Jones J, Joseph J, Jun I, Kah L, Kahanpaa H, Kahre M, Karpushkina N, Kasprzak W, Kauhanen J, Keely L, Kemppinen O, Keymeulen D, Kim MH, Kinch K, King P, Kirkland L, Kocurek G, Koefoed A, Kohler J, Kortmann O, Kozyrev A, Krezoski J, Krysak D, Kuzmin R, Lacour JL, Lafaille V, Langevin Y, Lanza N, Lasue J, Le Mouelic S, Lee EM, Lee QM, Lees D, Lefavor M, Lemmon M, Malvitte AL, Leshin L, Leveille R, Lewin-Carpintier E, Lewis K, Li S, Lipkaman L, Little C, Litvak M, Lorigny E, Lugmair G, Lundberg A, Lyness E, Madsen M, Mahaffy P, Maki J, Malakhov A, Malespin C, Malin M, Mangold N, Manhes G, Manning H, Marchand G, Marin Jimenez M, Martin Garcia C, Martin D, Martin M, Martinez-Frias J, Martin-Soler J, Martin-Torres FJ, Mauchien P, McAdam A, McCartney E, McConnochie T, McCullough E, McEwan I, McKay C, McNair S, Melikechi N, Meslin PY, Meyer M, Mezzacappa A, Miller H, Miller K, Minitti M, Mischna M, Mitrofanov I, Moersch J, Mokrousov M, Molina Jurado A, Moores J, Mora-Sotomayor L, Mueller-Mellin R, Muller JP, Munoz Caro G, Nachon M, Navarro Lopez S, Navarro-Gonzalez R, Nealson K, Nefian A, Nelson T, Newcombe M, Newman C, Nikiforov S, Niles P, Nixon B, Noe Dobrea E, Nolan T, Oehler D, Ollila A, Olson T, Owen T, de Pablo Hernandez MA, Paillet A, Pallier E, Palucis M, Parker T, Parot Y, Patel K, Paton M, Paulsen G, Pavlov A, Pavri B, Peinado-Gonzalez V, Pepin R, Peret L, Perez R, Perrett G, Peterson J, Pilorget C, Pinet P, Pla-Garcia J, Plante I, Poitrasson F, Polkko J, Popa R, Posiolova L, Posner A, Pradler I, Prats B, Prokhorov V, Purdy SW, Raaen E, Radziemski L, Rafkin S, Ramos M, Raulin F, Ravine M, Reitz G, Renno N, Richardson M, Robert F, Robertson K, Rodriguez Manfredi JA, Romeral-Planello JJ, Rowland S, Rubin D, Saccoccio M, Salamon A, Sandoval J, Sanin A, Sans Fuentes SA, Saper L, Sautter V, Savijarvi H, Schieber J, Schmidt M, Schmidt W, Scholes DD, Schoppers M, Schroder S, Schwenzer S, Sebastian Martinez E, Sengstacken A, Shterts R, Siebach K, Siili T, Simmonds J, Sirven JB, Slavney S, Sletten R, Smith M, Sobron Sanchez P, Spray J, Squyres S, Stalport F, Steele A, Stein T, Stern J, Stewart N, Stipp SLS, Stoiber K, Sucharski B, Sullivan R, Summons R, Sun V, Supulver K, Sutter B, Szopa C, Tan F, Tate C, Teinturier S, ten Kate I, Thomas P, Thompson L, Tokar R, Toplis M, Torres Redondo J, Trainer M, Tretyakov V, Urqui-O'Callaghan R, Van Beek J, Van Beek T, VanBommel S, Varenikov A, Vasavada A, Vasconcelos P, Vicenzi E, Vostrukhin A, Voytek M, Wadhwa M, Ward J, Webster C, Weigle E, Wellington D, Westall F, Wiens RC, Wilhelm MB, Williams A, Williams R, Williams RBM, Wilson M, Wimmer-Schweingruber R, Wolff M, Wong M, Wray J, Wu M, Yana C, Yingst A, Zeitlin C, Zimdar R, Zorzano Mier MP. Mineralogy of a Mudstone at Yellowknife Bay, Gale Crater, Mars. Science 2013; 343:1243480. [DOI: 10.1126/science.1243480] [Citation(s) in RCA: 433] [Impact Index Per Article: 39.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Meslin PY, Gasnault O, Forni O, Schröder S, Cousin A, Berger G, Clegg SM, Lasue J, Maurice S, Sautter V, Le Mouélic S, Wiens RC, Fabre C, Goetz W, Bish D, Mangold N, Ehlmann B, Lanza N, Harri AM, Anderson R, Rampe E, McConnochie TH, Pinet P, Blaney D, Léveillé R, Archer D, Barraclough B, Bender S, Blake D, Blank JG, Bridges N, Clark BC, DeFlores L, Delapp D, Dromart G, Dyar MD, Fisk M, Gondet B, Grotzinger J, Herkenhoff K, Johnson J, Lacour JL, Langevin Y, Leshin L, Lewin E, Madsen MB, Melikechi N, Mezzacappa A, Mischna MA, Moores JE, Newsom H, Ollila A, Perez R, Renno N, Sirven JB, Tokar R, de la Torre M, d'Uston L, Vaniman D, Yingst A. Soil diversity and hydration as observed by ChemCam at Gale crater, Mars. Science 2013; 341:1238670. [PMID: 24072924 DOI: 10.1126/science.1238670] [Citation(s) in RCA: 190] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The ChemCam instrument, which provides insight into martian soil chemistry at the submillimeter scale, identified two principal soil types along the Curiosity rover traverse: a fine-grained mafic type and a locally derived, coarse-grained felsic type. The mafic soil component is representative of widespread martian soils and is similar in composition to the martian dust. It possesses a ubiquitous hydrogen signature in ChemCam spectra, corresponding to the hydration of the amorphous phases found in the soil by the CheMin instrument. This hydration likely accounts for an important fraction of the global hydration of the surface seen by previous orbital measurements. ChemCam analyses did not reveal any significant exchange of water vapor between the regolith and the atmosphere. These observations provide constraints on the nature of the amorphous phases and their hydration.
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Affiliation(s)
- P-Y Meslin
- Université de Toulouse, UPS-OMP, IRAP, 31028 Toulouse, France.
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Leshin LA, Mahaffy PR, Webster CR, Cabane M, Coll P, Conrad PG, Archer PD, Atreya SK, Brunner AE, Buch A, Eigenbrode JL, Flesch GJ, Franz HB, Freissinet C, Glavin DP, McAdam AC, Miller KE, Ming DW, Morris RV, Navarro-Gonzalez R, Niles PB, Owen T, Pepin RO, Squyres S, Steele A, Stern JC, Summons RE, Sumner DY, Sutter B, Szopa C, Teinturier S, Trainer MG, Wray JJ, Grotzinger JP, Kemppinen O, Bridges N, Johnson JR, Minitti M, Cremers D, Bell JF, Edgar L, Farmer J, Godber A, Wadhwa M, Wellington D, McEwan I, Newman C, Richardson M, Charpentier A, Peret L, King P, Blank J, Weigle G, Schmidt M, Li S, Milliken R, Robertson K, Sun V, Baker M, Edwards C, Ehlmann B, Farley K, Griffes J, Miller H, Newcombe M, Pilorget C, Rice M, Siebach K, Stack K, Stolper E, Brunet C, Hipkin V, Leveille R, Marchand G, Sanchez PS, Favot L, Cody G, Fluckiger L, Lees D, Nefian A, Martin M, Gailhanou M, Westall F, Israel G, Agard C, Baroukh J, Donny C, Gaboriaud A, Guillemot P, Lafaille V, Lorigny E, Paillet A, Perez R, Saccoccio M, Yana C, Armiens-Aparicio C, Rodriguez JC, Blazquez IC, Gomez FG, Gomez-Elvira J, Hettrich S, Malvitte AL, Jimenez MM, Martinez-Frias J, Martin-Soler J, Martin-Torres FJ, Jurado AM, Mora-Sotomayor L, Caro GM, Lopez SN, Peinado-Gonzalez V, Pla-Garcia J, Manfredi JAR, Romeral-Planello JJ, Fuentes SAS, Martinez ES, Redondo JT, Urqui-O'Callaghan R, Mier MPZ, Chipera S, Lacour JL, Mauchien P, Sirven JB, Manning H, Fairen A, Hayes A, Joseph J, Sullivan R, Thomas P, Dupont A, Lundberg A, Melikechi N, Mezzacappa A, DeMarines J, Grinspoon D, Reitz G, Prats B, Atlaskin E, Genzer M, Harri AM, Haukka H, Kahanpaa H, Kauhanen J, Kemppinen O, Paton M, Polkko J, Schmidt W, Siili T, Fabre C, Wilhelm MB, Poitrasson F, Patel K, Gorevan S, Indyk S, Paulsen G, Gupta S, Bish D, Schieber J, Gondet B, Langevin Y, Geffroy C, Baratoux D, Berger G, Cros A, d'Uston C, Forni O, Gasnault O, Lasue J, Lee QM, Maurice S, Meslin PY, Pallier E, Parot Y, Pinet P, Schroder S, Toplis M, Lewin E, Brunner W, Heydari E, Achilles C, Oehler D, Coscia D, Israel G, Dromart G, Robert F, Sautter V, Le Mouelic S, Mangold N, Nachon M, Stalport F, Francois P, Raulin F, Cameron J, Clegg S, Cousin A, DeLapp D, Dingler R, Jackson RS, Johnstone S, Lanza N, Little C, Nelson T, Wiens RC, Williams RB, Jones A, Kirkland L, Treiman A, Baker B, Cantor B, Caplinger M, Davis S, Duston B, Edgett K, Fay D, Hardgrove C, Harker D, Herrera P, Jensen E, Kennedy MR, Krezoski G, Krysak D, Lipkaman L, Malin M, McCartney E, McNair S, Nixon B, Posiolova L, Ravine M, Salamon A, Saper L, Stoiber K, Supulver K, Van Beek J, Van Beek T, Zimdar R, French KL, Iagnemma K, Goesmann F, Goetz W, Hviid S, Johnson M, Lefavor M, Lyness E, Breves E, Dyar MD, Fassett C, Blake DF, Bristow T, DesMarais D, Edwards L, Haberle R, Hoehler T, Hollingsworth J, Kahre M, Keely L, McKay C, Wilhelm MB, Bleacher L, Brinckerhoff W, Choi D, Dworkin JP, Floyd M, Garvin J, Harpold D, Jones A, Martin DK, Pavlov A, Raaen E, Smith MD, Tan F, Meyer M, Posner A, Voytek M, Anderson RC, Aubrey A, Beegle LW, Behar A, Blaney D, Brinza D, Calef F, Christensen L, Crisp JA, DeFlores L, Ehlmann B, Feldman J, Feldman S, Hurowitz J, Jun I, Keymeulen D, Maki J, Mischna M, Morookian JM, Parker T, Pavri B, Schoppers M, Sengstacken A, Simmonds JJ, Spanovich N, Juarez MDLT, Vasavada AR, Yen A, Cucinotta F, Jones JH, Rampe E, Nolan T, Fisk M, Radziemski L, Barraclough B, Bender S, Berman D, Dobrea EN, Tokar R, Vaniman D, Williams RME, Yingst A, Lewis K, Cleghorn T, Huntress W, Manhes G, Hudgins J, Olson T, Stewart N, Sarrazin P, Grant J, Vicenzi E, Wilson SA, Bullock M, Ehresmann B, Hamilton V, Hassler D, Peterson J, Rafkin S, Zeitlin C, Fedosov F, Golovin D, Karpushkina N, Kozyrev A, Litvak M, Malakhov A, Mitrofanov I, Mokrousov M, Nikiforov S, Prokhorov V, Sanin A, Tretyakov V, Varenikov A, Vostrukhin A, Kuzmin R, Clark B, Wolff M, McLennan S, Botta O, Drake D, Bean K, Lemmon M, Schwenzer SP, Anderson RB, Herkenhoff K, Lee EM, Sucharski R, Hernandez MADP, Avalos JJB, Ramos M, Kim MH, Malespin C, Plante I, Muller JP, Ewing R, Boynton W, Downs R, Fitzgibbon M, Harshman K, Morrison S, Dietrich W, Kortmann O, Palucis M, Williams A, Lugmair G, Wilson MA, Rubin D, Jakosky B, Balic-Zunic T, Frydenvang J, Jensen JK, Kinch K, Koefoed A, Madsen MB, Stipp SLS, Boyd N, Campbell JL, Gellert R, Perrett G, Pradler I, VanBommel S, Jacob S, Rowland S, Atlaskin E, Savijarvi H, Boehm E, Bottcher S, Burmeister S, Guo J, Kohler J, Garcia CM, Mueller-Mellin R, Wimmer-Schweingruber R, Bridges JC, McConnochie T, Benna M, Bower H, Blau H, Boucher T, Carmosino M, Elliott H, Halleaux D, Renno N, Wong M, Elliott B, Spray J, Thompson L, Gordon S, Newsom H, Ollila A, Williams J, Vasconcelos P, Bentz J, Nealson K, Popa R, Kah LC, Moersch J, Tate C, Day M, Kocurek G, Hallet B, Sletten R, Francis R, McCullough E, Cloutis E, ten Kate IL, Kuzmin R, Arvidson R, Fraeman A, Scholes D, Slavney S, Stein T, Ward J, Berger J, Moores JE. Volatile, Isotope, and Organic Analysis of Martian Fines with the Mars Curiosity Rover. Science 2013; 341:1238937. [DOI: 10.1126/science.1238937] [Citation(s) in RCA: 327] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Mahaffy PR, Webster CR, Atreya SK, Franz H, Wong M, Conrad PG, Harpold D, Jones JJ, Leshin LA, Manning H, Owen T, Pepin RO, Squyres S, Trainer M, Kemppinen O, Bridges N, Johnson JR, Minitti M, Cremers D, Bell JF, Edgar L, Farmer J, Godber A, Wadhwa M, Wellington D, McEwan I, Newman C, Richardson M, Charpentier A, Peret L, King P, Blank J, Weigle G, Schmidt M, Li S, Milliken R, Robertson K, Sun V, Baker M, Edwards C, Ehlmann B, Farley K, Griffes J, Grotzinger J, Miller H, Newcombe M, Pilorget C, Rice M, Siebach K, Stack K, Stolper E, Brunet C, Hipkin V, Leveille R, Marchand G, Sanchez PS, Favot L, Cody G, Steele A, Fluckiger L, Lees D, Nefian A, Martin M, Gailhanou M, Westall F, Israel G, Agard C, Baroukh J, Donny C, Gaboriaud A, Guillemot P, Lafaille V, Lorigny E, Paillet A, Perez R, Saccoccio M, Yana C, Armiens-Aparicio C, Rodriguez JC, Blazquez IC, Gomez FG, Gomez-Elvira J, Hettrich S, Malvitte AL, Jimenez MM, Martinez-Frias J, Martin-Soler J, Martin-Torres FJ, Jurado AM, Mora-Sotomayor L, Caro GM, Lopez SN, Peinado-Gonzalez V, Pla-Garcia J, Manfredi JAR, Romeral-Planello JJ, Fuentes SAS, Martinez ES, Redondo JT, Urqui-O'Callaghan R, Mier MPZ, Chipera S, Lacour JL, Mauchien P, Sirven JB, Fairen A, Hayes A, Joseph J, Sullivan R, Thomas P, Dupont A, Lundberg A, Melikechi N, Mezzacappa A, DeMarines J, Grinspoon D, Reitz G, Prats B, Atlaskin E, Genzer M, Harri AM, Haukka H, Kahanpaa H, Kauhanen J, Kemppinen O, Paton M, Polkko J, Schmidt W, Siili T, Fabre C, Wray J, Wilhelm MB, Poitrasson F, Patel K, Gorevan S, Indyk S, Paulsen G, Gupta S, Bish D, Schieber J, Gondet B, Langevin Y, Geffroy C, Baratoux D, Berger G, Cros A, d'Uston C, Forni O, Gasnault O, Lasue J, Lee QM, Maurice S, Meslin PY, Pallier E, Parot Y, Pinet P, Schroder S, Toplis M, Lewin E, Brunner W, Heydari E, Achilles C, Oehler D, Sutter B, Cabane M, Coscia D, Israel G, Szopa C, Dromart G, Robert F, Sautter V, Le Mouelic S, Mangold N, Nachon M, Buch A, Stalport F, Coll P, Francois P, Raulin F, Teinturier S, Cameron J, Clegg S, Cousin A, DeLapp D, Dingler R, Jackson RS, Johnstone S, Lanza N, Little C, Nelson T, Wiens RC, Williams RB, Jones A, Kirkland L, Treiman A, Baker B, Cantor B, Caplinger M, Davis S, Duston B, Edgett K, Fay D, Hardgrove C, Harker D, Herrera P, Jensen E, Kennedy MR, Krezoski G, Krysak D, Lipkaman L, Malin M, McCartney E, McNair S, Nixon B, Posiolova L, Ravine M, Salamon A, Saper L, Stoiber K, Supulver K, Van Beek J, Van Beek T, Zimdar R, French KL, Iagnemma K, Miller K, Summons R, Goesmann F, Goetz W, Hviid S, Johnson M, Lefavor M, Lyness E, Breves E, Dyar MD, Fassett C, Blake DF, Bristow T, DesMarais D, Edwards L, Haberle R, Hoehler T, Hollingsworth J, Kahre M, Keely L, McKay C, Wilhelm MB, Bleacher L, Brinckerhoff W, Choi D, Dworkin JP, Eigenbrode J, Floyd M, Freissinet C, Garvin J, Glavin D, Jones A, Martin DK, McAdam A, Pavlov A, Raaen E, Smith MD, Stern J, Tan F, Meyer M, Posner A, Voytek M, Anderson RC, Aubrey A, Beegle LW, Behar A, Blaney D, Brinza D, Calef F, Christensen L, Crisp JA, DeFlores L, Ehlmann B, Feldman J, Feldman S, Flesch G, Hurowitz J, Jun I, Keymeulen D, Maki J, Mischna M, Morookian JM, Parker T, Pavri B, Schoppers M, Sengstacken A, Simmonds JJ, Spanovich N, Juarez MDLT, Vasavada AR, Yen A, Archer PD, Cucinotta F, Ming D, Morris RV, Niles P, Rampe E, Nolan T, Fisk M, Radziemski L, Barraclough B, Bender S, Berman D, Dobrea EN, Tokar R, Vaniman D, Williams RME, Yingst A, Lewis K, Cleghorn T, Huntress W, Manhes G, Hudgins J, Olson T, Stewart N, Sarrazin P, Grant J, Vicenzi E, Wilson SA, Bullock M, Ehresmann B, Hamilton V, Hassler D, Peterson J, Rafkin S, Zeitlin C, Fedosov F, Golovin D, Karpushkina N, Kozyrev A, Litvak M, Malakhov A, Mitrofanov I, Mokrousov M, Nikiforov S, Prokhorov V, Sanin A, Tretyakov V, Varenikov A, Vostrukhin A, Kuzmin R, Clark B, Wolff M, McLennan S, Botta O, Drake D, Bean K, Lemmon M, Schwenzer SP, Anderson RB, Herkenhoff K, Lee EM, Sucharski R, Hernandez MADP, Avalos JJB, Ramos M, Kim MH, Malespin C, Plante I, Muller JP, Navarro-Gonzalez R, Ewing R, Boynton W, Downs R, Fitzgibbon M, Harshman K, Morrison S, Dietrich W, Kortmann O, Palucis M, Sumner DY, Williams A, Lugmair G, Wilson MA, Rubin D, Jakosky B, Balic-Zunic T, Frydenvang J, Jensen JK, Kinch K, Koefoed A, Madsen MB, Stipp SLS, Boyd N, Campbell JL, Gellert R, Perrett G, Pradler I, VanBommel S, Jacob S, Rowland S, Atlaskin E, Savijarvi H, Boehm E, Bottcher S, Burmeister S, Guo J, Kohler J, Garcia CM, Mueller-Mellin R, Wimmer-Schweingruber R, Bridges JC, McConnochie T, Benna M, Bower H, Brunner A, Blau H, Boucher T, Carmosino M, Elliott H, Halleaux D, Renno N, Elliott B, Spray J, Thompson L, Gordon S, Newsom H, Ollila A, Williams J, Vasconcelos P, Bentz J, Nealson K, Popa R, Kah LC, Moersch J, Tate C, Day M, Kocurek G, Hallet B, Sletten R, Francis R, McCullough E, Cloutis E, ten Kate IL, Kuzmin R, Arvidson R, Fraeman A, Scholes D, Slavney S, Stein T, Ward J, Berger J, Moores JE. Abundance and Isotopic Composition of Gases in the Martian Atmosphere from the Curiosity Rover. Science 2013; 341:263-6. [PMID: 23869014 DOI: 10.1126/science.1237966] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Hoefer J, Streif W, Kilo J, Grimm M, Berger G, Velik-Salchner C. Surgery of a cyanotic heart defect in an 11-year-old boy with thrombocytopenic thrombocytopathy and severe anemia due to a GATA-1 defect: hemostatic therapy. Klin Padiatr 2012; 224:382-5. [PMID: 22915449 DOI: 10.1055/s-0032-1321875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
A child was admitted to our hospital for repair of a ventricular septal defect (VSD) characterized by a predominantly right-to-left shunt and a severe stenosis of the right ventricular outflow tract (Tetralogy of Fallot). Severe congenital anemia (hemoglobin 72 g/L), thrombocytopenia (42×G/L) and profound platelet dysfunction led a stem cell defect to be suspected. X-linked thrombocytopenia (GATA-1 mutation) was diagnosed. GATA-1 defect may complicate medical interventions due to excessive bleeding and partial or complete bone marrow failure. Maintaining a platelet count of 100 G/L and a maximal clot firmness (EXTEM-MCF) >50 mm allowed repair of the congenital heart defect without bleeding or hematological complications. Anemia and thrombocytopenia persisted after cardiac surgery, while the spontaneous bleeding tendency improved.
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Affiliation(s)
- J Hoefer
- Innsbruck Medical University, Anesthesiology and Intensive Care Medicine, Innsbruck, Austria
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Albrecht T, Wirsching J, Berger G. Sequentielle nicht-selektive, nicht-okklusive TACE weit fortgeschrittener HCC mit degradierbaren Stärkemikrosphären, Carboplatin und Docetaxel - Verträglichkeit und Langzeitergebnisse. ROFO-FORTSCHR RONTG 2012. [DOI: 10.1055/s-0032-1311210] [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]
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Quillard S, Paris M, Deniard P, Gildenhaar R, Berger G, Obadia L, Bouler JM. Structural and spectroscopic characterization of a series of potassium- and/or sodium-substituted β-tricalcium phosphate. Acta Biomater 2011; 7:1844-52. [PMID: 21185410 DOI: 10.1016/j.actbio.2010.12.016] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2010] [Revised: 12/10/2010] [Accepted: 12/17/2010] [Indexed: 10/18/2022]
Abstract
In this paper, we report X-ray diffraction investigations as well as Raman and solid-state (31)P and (23)Na magic angle spinning nuclear magnetic resonance (NMR) characterization of three series of calcium orthophosphates. The general formulae of the studied compounds are Ca(10.5-x/2)M(x)(PO(4))(7), where M=K or Na and x=0, 0.25, 0.50, 0.75, 1.0; and Ca(10)K(x)Na(1-x)(PO(4))(7), where x=0, 0.25, 0.5, 0.75, 1.0. These calcium orthophosphates are found to be isostructural with β-tricalcium phosphate (β-TCP, Ca(3)(PO(4))(2)) with the substitution of some calcium sites by potassium and/or sodium cations. The unit cell parameters vary continuously with the level of substitution, a characteristic of these solid solutions. The Raman spectra show the different vibrational bands of the phosphate groups PO(4), while the NMR chemical shifts are sensitive to the non-equivalent phosphorus and sodium ions present in these substituted samples. As both Raman and NMR spectroscopies are local probes, they offer tools to distinguish between these different phosphorus and phosphate groups, according to their structural site and local environment, especially the type of cation substituent. A convenient decomposition of the Raman and NMR spectra into Gaussian-Lorentzian components leads us to propose an assignment of the main observed bands of these substituted β-TCPs.
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Abstract
Omega-3 fatty acid supplementation studies are inconclusive. We performed two intervention studies. The first study (Berger et al 2007) was a double blind, placebo-controlled randomized trial comparing 2 g Ethyl-eicosapentaenoic acid (EPA) versus placebo in addition to antipsychotic medication in 79 first episode psychosis patients. Mixed model analysis suggests that EPA augmented first episode psychosis patients respond quicker compared to placebo for time to response (p = 0.06). Post hoc analysis for cumulative response rates confirm a higher response rate at week 6 (42.9% versus 17.6% for all subjects, p = .036; 54,2% versus 17.2% for non-affective psychosis, p = .008) that was not significant anymore at week 12 (potential ceiling effect). In the second study (Amminger et al, 2010) using 840 mg EPA and 700 mg docosahexaenoic acid per day as sole treatment in 81 prodromal adolescents only 1 of 38 UHR adolescents (2.6%) in the EPA/DHA group compared to 8 of 38 (21.1%) prodromal adolescents in the placebo group met exit criteria for psychotic disorder (Chi-square Fisher's exact test =6.2, df = 1, p = 0.028; OR = 9.9). The change from baseline on the PANSS total symptom score (p = 0.006), and the GAF score (p = 0.025) were also significant between the treatment groups showing a clinically relevant advantage of EPA/DHA over placebo. Stage of illness may be more relevant for the use of the benign treatments such as omega-3 fatty acids in emerging psychosis and explain previous inconclusive findings. Research designs for future omega-3 fatty acid intervention trials and potential pitfalls will be discussed.
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Smesny S, Milleit B, Schäfer M, Milleit C, Otto M, Hipler UC, Berger G, Sauer H, Amminger P. N-3 Fatty Acid Supplementation Influences Membrane Fatty Acids and Phospholipase A 2 Activity in Patients at Risk to Develop Psychosis. Eur Psychiatry 2011. [DOI: 10.1016/s0924-9338(11)72834-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
IntroductionDecreased levels of polyunsaturated membrane fatty acids (PUFA) and increased activity of cytosolic phospholipase A2 (PLA2) enzymes (key regulating enzymes of membrane remodelling and PUFA availability) are supporting pillars of the “membrane phospholipids concept of schizophrenia”. Assuming that membrane PUFA profile and PLA2 activity are altered during the at risk phase of disorder and influenced by fatty acid supplementation, we investigated PUFA profiles and PLA2 activity simultaneously in ultra high-risk (UHR) subjects before and after (n-3) fatty acids supplementation.MethodIn 81 UHR patients (aged between 13 and 25 years) PUFA levels were assessed in erythrocyte membranes using gas chromatography, and cytosolic PLA2 activity was measured in blood serum using a fluorometric HPTLC-based assay. Measurements were performed before and after a 6 month interval of placebo-controlled supplementation with n-3 fatty acids.ResultsAt baseline significant associations were found between (n-9) and (n-6)-PUFA levels and psychopathology (especially in negative symptoms) assessed by the PANSS according to PACE criteria. (n-3)-PUFA supplementation caused significant changes in (n-3)- and (n-6)-PUFA levels and a significant decrease of PLA2 activity.ConclusionOur results support associations between membrane biochemistry and psychopathology (especially negative symptoms) in people at risk to develop psychosis. Supplementation of n-3 PUFA increases PUFA availability at membrane level and modulates membrane repair and remodelling processes. Assuming that PLA2 activity reflects neuronal damage, PUFA supplementation might unfold neuroprotective effects.
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Radetzki F, Wohlrab D, Zeh A, Delank KS, Mendel T, Berger G, Syrowatka F, Mayr O, Bernstein A. Cellular compatibility of highly degradable bioactive ceramics for coating of metal implants. Biomed Mater Eng 2011; 21:307-21. [PMID: 22561250 DOI: 10.3233/bme-2012-0678] [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: 11/15/2022]
Abstract
Resorbable ceramics can promote the bony integration of implants. Their rate of degradation should ideally be synchronized with bone regeneration. This study examined the effect of rapidly resorbable calcium phosphate ceramics 602020, GB14, 305020 on adherence, proliferation and morphology of human bone-derived cells (HBDC) in comparison to β-TCP. The in vitro cytotoxicity was determined by the microculture tetrazolium (MTT) assay. HBDC were grown on the materials for 3, 7, 11, 15 and 19 days and counted. Cell morphology, cell attachment, cell spreading and the cytoskeletal organization of HBDC cultivated on the substrates were investigated using laser scanning microscopy and environmental scanning electron microscopy. All substrates supported sufficient cellular growth for 19 days and showed no cytotoxicity. On each material an identical cell colonisation of well communicating, polygonal, vital cells with strong focal contacts was verified. HBDC showed numerous well defined stress fibres which give proof of well spread and strongly anchored cells. Porous surfaces encouraged the attachment and spreading of HBDC. Further investigations regarding long term biomaterial/cell interactions in vitro and in vivo are required to confirm the utility of the new biomaterials.
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Affiliation(s)
- F Radetzki
- Department of Orthopedic Surgery, Martin Luther University Halle-Wittenberg, Saale, Germany.
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Pohlen U, Reszka R, Buhr HJ, Berger G. Hepatic arterial infusion in the treatment of liver metastases with PEG liposomes in combination with degradable starch microspheres (DSM) increases tumor 5-FU concentration. an animal study in CC-531 liver tumor-bearing rats. Anticancer Res 2011; 31:147-152. [PMID: 21273592] [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: 05/30/2023]
Abstract
UNLABELLED The regional application of cytostatics in liver metastases leads to increased concentrations in the tumor tissue. The effect of flow retardation by temporary occlusion and drug targeting with liposome encapsulation (PEG liposomes) on tumor 5-fluorouracil (5-FU) concentrations was investigated. MATERIALS AND METHODS Tumor-bearing rats were submitted to i.v. or intraarterial (i.a.) therapy with liposome-encapsulated or non-encapsulated 5-FU. The i.a. groups were additionally treated with or without Spherex® degradable starch microspheres (DSM). The tumor 5-FU concentrations were determined by high-performance liquid chromatography (HPLC) as area under the curve (AUC). RESULTS A comparison with i.v. in administered 5-FU yielded the following increases tumor concentrations: 5-FU-PEG liposomes i.v. 27-fold, 5-FU i.a. 19-fold, 5-FU i.a. + DSM 1760-fold, 5-FU-PEG liposomes i.a. 110-fold, 5-FU-PEG liposomes i.a. + DSM 7665-fold. CONCLUSION Liver intratumoral 5-FU concentration increases to >7,500 times that following i.v. administration by a combination of regional administration via the hepatic artery with temporary embolization by DSM and drug targeting by liposome-encapsulated 5-FU.
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Affiliation(s)
- U Pohlen
- Charité-Universitätsmedizin Berlin, Chirurgische Klinik, Campus Benjamin Franklin, Berlin, Germany.
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Pohlen U, Buhr HJ, Berger G. Improvement of biodistribution with PEGylated liposomes containing docetaxel with degradable starch microspheres for hepatic arterial infusion in the treatment of liver metastases: a study in CC-531 liver tumor-bearing WAG RIJ rats. Anticancer Res 2011; 31:153-159. [PMID: 21273593] [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: 05/30/2023]
Abstract
AIM To improve the drug concentration in liver metastases, docetaxel was encapsulated in polyethyleneglycol-liposomes and administered regionally with degradable starch microspheres (DSM). MATERIALS AND METHODS A rodent model of solitary metastasis (CC-531 adenocarcinoma) was studied. The animals were randomized into six groups and treated with 15 ng/kg docetaxel: I: intravenous (i.v.). II: PEG-liposomes i.v.; III: intraartial (i.a.) via the hepatica artery; IV: i.a.) + DSM; V: PEG-liposomes i.a.; and VI: PEG-liposomes i.a. + DSM. The docetaxel concentration in the serum, liver and liver tumor at defined times (5, 15, 30, 60,120 240 min and 24 h) was measured using HPLC. RESULTS The area under the concentration (AUC) versus time curves showed an 11-fold higher concentration in the tumor tissue when comparing the docetaxel-PEG-liposomes i.a. + DSM group to the i.v. group (p<0.01). CONCLUSION Compared to intravenous therapy, i.a. therapy with docetaxel-PEG-liposomes + DSM results in higher tumor tissue concentrations.
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Affiliation(s)
- U Pohlen
- Department of Surgery, Charité Universitaetsmedizin Berlin, Benjamin Franklin Campus, Berlin, Germany.
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Mansour C, Berger G, Fédoroff M, Lefèvre G, Pages A, Pavageau E, Catalette H, Zanna S. Influence of temperature and reducing conditions on the sorption of sulfate on magnetite. J Colloid Interface Sci 2010; 352:476-82. [DOI: 10.1016/j.jcis.2010.08.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2010] [Revised: 08/01/2010] [Accepted: 08/03/2010] [Indexed: 11/28/2022]
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Winkler T, Hoenig E, Gildenhaar R, Berger G, Fritsch D, Janssen R, Morlock M, Schilling A. Volumetric analysis of osteoclastic bioresorption of calcium phosphate ceramics with different solubilities. Acta Biomater 2010; 6:4127-35. [PMID: 20451677 DOI: 10.1016/j.actbio.2010.04.015] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2009] [Revised: 03/18/2010] [Accepted: 04/20/2010] [Indexed: 10/19/2022]
Abstract
Commonly, to determine osteoclastic resorption of biomaterials only the resorbed area is measured. The depth of the resorption pit, however, may also be important for the performance of a material. To generate such data we used two calcium phosphate ceramics (Ca(10) and Ca(2)). The solubility of the materials was determined according to DIN EN ISO 10993-14. They were scanned three-dimensionally using infinite focus microscopy and subsequently cultivated for 4 weeks in simulated body fluid without (control) or with human osteoclasts. After this cultivation period osteoclasts number was determined and surface changes were evaluated two- and three-dimensionally. Ca(10) and Ca(2) showed solubilities of 11.0+/-0.5 and 23.0+/-2.2 mgg(-1), respectively. Both materials induced a significant increase in osteoclast number. While Ca(10) did not show osteoclastic resorption, Ca(2) showed an increased pit area and pit volume due to osteoclastic action. This was caused by an increased average pit depth and an increased number of pits, while the average area of single pits did not change significantly. The deduced volumetric osteoclastic resorption rate (vORR) of Ca(2) (0.01-0.02 microm(3)microm(-2)day(-1)) was lower than the remodelling speed observed in vivo (0.08 microm(3)microm(-2)day(-1)), which is in line with the observation that implanted resorbable materials remain in the body longer than originally expected. Determination of volumetric indices of osteoclastic resorption might be valuable in obtaining additional information about cellular resorption of bone substitute materials. This may help facilitate the development of novel materials for bone substitution.
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Berger G. Molekuelgestalt und Kohaesion: I. Intramolekulare Absättigung der Kohäsionskräfte bei langen fadenförmigen Molekülen. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19370560613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Olivier SCJ, Berger G. La Saponification des Éthers-sels Dérivés D'acides Forts Est-Elle Accélérée par L'Ion D'hydrogène? A propos d'une critique de M. Skrabal. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19250440709] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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