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Halstead SK, Gourlay DS, Penderis J, Bianchi E, Dondi M, Wessmann A, Musteata M, Le Chevoir M, Martinez-Anton L, Bhatti SFM, Volk H, Mateo I, Tipold A, Ives E, Pakozdy A, Gutierrez-Quintana R, Brocal J, Whitehead Z, Granger N, Pazzi P, Harcourt-Brown T, José-López R, Rupp S, Schenk HC, Smith P, Gandini G, Menchetti M, Mortera-Balsa V, Rusbridge C, Tauro A, Cozzi F, Deutschland M, Tirrito F, Freeman P, Lowrie M, Jackson MR, Willison HJ, Rupp A. Serum anti-GM2 and anti-GalNAc-GD1a IgG antibodies are biomarkers for acute canine polyradiculoneuritis. J Small Anim Pract 2022; 63:104-112. [PMID: 34791652 DOI: 10.1111/jsap.13439] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 08/13/2021] [Accepted: 09/19/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVES A previous single-country pilot study indicated serum anti-GM2 and anti-GA1 anti-glycolipid antibodies as potential biomarkers for acute canine polyradiculoneuritis. This study aims to validate these findings in a large geographically heterogenous cohort. MATERIALS AND METHODS Sera from 175 dogs clinically diagnosed with acute canine polyradiculoneuritis, 112 dogs with other peripheral nerve, cranial nerve or neuromuscular disorders and 226 neurologically normal dogs were screened for anti-glycolipid antibodies against 11 common glycolipid targets to determine the immunoglobulin G anti-glycolipid antibodies with the highest combined sensitivity and specificity for acute canine polyradiculoneuritis. RESULTS Anti-GM2 anti-glycolipid antibodies reached the highest combined sensitivity and specificity (sensitivity: 65.1%, 95% confidence interval 57.6 to 72.2%; specificity: 90.2%, 95% confidence interval 83.1 to 95.0%), followed by anti-GalNAc-GD1a anti-glycolipid antibodies (sensitivity: 61.7%, 95% confidence interval 54.1 to 68.9%; specificity: 89.3%, 95% confidence interval 82.0 to 94.3%) and these anti-glycolipid antibodies were frequently present concomitantly. Anti-GA1 anti-glycolipid antibodies were detected in both acute canine polyradiculoneuritis and control animals. Both for anti-GM2 and anti-GalNAc-GD1a anti-glycolipid antibodies, sex was found a significantly associated factor with a female to male odds ratio of 2.55 (1.27 to 5.31) and 3.00 (1.22 to 7.89), respectively. Anti-GalNAc-GD1a anti-glycolipid antibodies were more commonly observed in dogs unable to walk (OR 4.56, 1.56 to 14.87). CLINICAL SIGNIFICANCE Anti-GM2 and anti-GalNAc-GD1a immunoglobulin G anti-glycolipid antibodies represent serum biomarkers for acute canine polyradiculoneuritis.
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Wolk K, Witte K, Witte E, Raftery M, Kokolakis G, Warszawska K, Schönrich G, Volk H, Sterry W, Sabat R. 439 Mechanisms underlying the different susceptibility to cutaneous viral infections in atopic dermatitis versus psoriasis. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.06.459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Witte E, Wolk K, Christou D, Witte K, Philipp S, Kokolakis G, Volk H, Sterry W, Sabat R. 424 Elements and effects of IL-17 pathway in psoriasis. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.06.444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Gonçalves R, Volk H, Smith PM, Penderis J, Garosi L, MacKillop E, de Stefani A, Cherubini G, McConnell JF. Corpus callosal abnormalities in dogs. J Vet Intern Med 2014; 28:1275-9. [PMID: 24839863 PMCID: PMC4857934 DOI: 10.1111/jvim.12371] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Revised: 02/25/2014] [Accepted: 04/08/2014] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Corpus callosal abnormalities (CCA) in dogs have been only sporadically reported and are poorly characterized. HYPOTHESIS/OBJECTIVES To describe the clinical presentation and magnetic resonance imaging (MRI) characteristics of dogs with CCA. ANIMALS Fifteen client-owned dogs. METHODS Retrospective study. Records of the contributing institutions were reviewed to identify dogs diagnosed with malformations affecting the corpus callosum (CC); cases in which the CCA was thought to be secondary were excluded. RESULTS The most represented breeds were Staffordshire Bull Terriers (5/15) and Miniature Schnauzers (3/15; n = 3, 20%) and the mean age at time of presentation of 19 months (range 3-81 months). The clinical signs most commonly reported were adipsia/hypodipsia with associated hypernatremia (12/15), tremors (6/15), and seizures (6/15). Review of the MR images revealed that 10 dogs had absence of the rostral CC and hypoplasia of the caudal portion, 4 dogs had a diffusely hypoplastic and dysplastic CC, and 1 dog had a diffusely hypoplastic CC. In 14 cases, there was abnormal cortical development with fusion of the ventral frontal lobes and part of the diencephalon, indicating lobar holoprosencephaly. CONCLUSIONS AND CLINICAL IMPORTANCE Previous literature has mainly associated CCA with adipsia and only 12 of 15 dogs in the current series demonstrated this abnormality. There are different degrees of the malformation but in 10 dogs the rostral portion of the CC is most severely affected. Fourteen dogs have simultaneous fusion of the midline structures rostral to the CC; this region has several structures involved in thirst regulation and might explain this derangement.
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De Decker S, De Risio L, Lowrie M, Mauler D, Beltran E, Giedja A, Kenny P, Gielen I, Garosi L, Volk H. Cervical Vertebral Stenosis Associated with a Vertebral Arch Anomaly in the Basset Hound. J Vet Intern Med 2012; 26:1374-82. [DOI: 10.1111/j.1939-1676.2012.00990.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2012] [Revised: 06/17/2012] [Accepted: 07/11/2012] [Indexed: 11/28/2022] Open
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Fischer L, Korfel A, Pfeiffer S, Kiewe P, Volk H, Cakiroglu H, Widmann T, Thiel E. CXCL13 and CXCL12 in central nervous system (CNS) lymphoma patients. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.2071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
2071 Background: Homing of malignant lymphocytes to the CNS may play a role in the pathogenesis of CNS lymphoma. Recently, the expression of the chemokine receptors CXCR4 and CXCR5 as well as their chemokine ligands CXCL12 and CXCL13 by tumor cells in primary CNS lymphoma (PCNSL) has been demonstrated. In this study, we evaluated CXCL12 and CXCL13 in cerebrospinal fluid (CSF) and serum of patients with CNS lymphoma. Methods: Samples from 30 patients with CNS lymphoma (23 with PCNSL and seven with secondary CNS lymphoma) and 40 controls (10 patients with other CNS malignancies and 30 without a malignant CNS disease) were examined. CXCL12 and CXCL13 concentrations were measured using enzyme-linked immunosorbent assays. The grade of blood brain barrier (BBB) disruption was estimated by the CSF/serum albumin ratio. Results: CNS lymphoma patients and controls did not differ in CXCL12 serum and CSF levels. Serum levels of CXCL13 were generally low. CXCL13 CSF levels, however, were high only in CNS lymphoma patients but not in controls (p < 0.0001). Chemokine levels in CSF and serum did not correlate. In CNS lymphoma CXCL13 concentration in CSF correlated with BBB disruption (R = 0.66, p = 0.003). Elevated CSF levels of CXCL12 and CXCL13 measured in seven CNS lymphoma patients decreased in five patients which responded to chemotherapy, and increased in two with lymphoma progression. Conclusions: Our results suggest a production of CXCL13 within the CNS of CNS lymphoma patients which decreases with response to therapy. Thus, CXCL13 may represent a marker for further diagnostic and prognostic studies. No significant financial relationships to disclose.
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Boedecker F, Volk H. Zur Kenntnis ungesättigter Gallensäuren, III. Abhandlung: Über die Beziehungen der Apo-cholsäure, Dioxy-cholensäure (Schmp. 260°) und Cholsäure zur Desoxy-cholsäure. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/cber.19220550810] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Bödecker F, Volk H. Zur Kenntnis ungesättigter Gallensäuren. II. Abhandlung: Über ein Isomeres der Apo-cholsäure. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/cber.19210540937] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Schefold J, Corsepius M, Pohle C, Volk H, Reinke P. Crit Care 2006; 10:P288. [DOI: 10.1186/cc4635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Häusler K, Schmidt W, Föhring F, Meisel C, Jungehülsing J, Volk H, Villringer A. Charakteristika der Immunantwort nach akuter zerebraler Ischämie. AKTUELLE NEUROLOGIE 2005. [DOI: 10.1055/s-2005-919412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Harms H, Hartmann A, Haas W, Arnold G, Meisel C, Volk H, Halle E, Prass K, Dirnagl U, Meisel A. Antibakterielle Prävention beim Schlaganfall: Hintergrund, Design und erste Ergebnisse der PANTHERIS-Studie. AKTUELLE NEUROLOGIE 2005. [DOI: 10.1055/s-2005-919470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Klemm W, Li Klemm, Hohmann E, Volk H, Orlamünder E, Klein HA. Das Verhalten der Elemente der III. Gruppe zueinander und zu den Elementen der IV. Gruppe. ACTA ACUST UNITED AC 2004. [DOI: 10.1002/zaac.19482560404] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Fritz G, Neutzner J, Volk H. Bildung siliciumorganischer Verbindungen. 91. Über die Bildung cyclischer Carbosilane durch Umsetzung mit AlBr3. Z Anorg Allg Chem 2004. [DOI: 10.1002/zaac.19834970204] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Fritz G, Volk H, Peters K, Peters EM, v. Schnering HG. Bildung siliciumorganischer Verbindungen. 92 [1]. Bildung und Struktur des Oktamethyl-hexasila-hexascaphans. Z Anorg Allg Chem 2004. [DOI: 10.1002/zaac.19834970211] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Volk H, George S, Boreham C, Kempton R. GEOCHEMICAL AND COMPOUND SPECIFIC CARBON ISOTOPIC CHARACTERISATION OF FLUID INCLUSION OILS FROM THE OFFSHORE PERTH BASIN,WESTERN AUSTRALIA: IMPLICATIONS FOR RECOGNISING EFFECTIVE OIL SOURCE ROCKS. ACTA ACUST UNITED AC 2004. [DOI: 10.1071/aj03008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The molecular composition of fluid inclusion (FI) oils from Leander Reef–1, Houtman–1 and Gage Roads–2 provide evidence of the origin of palaeo-oil accumulations in the offshore Perth Basin. These data are complemented by compound specific isotope (CSI) profiles of n-alkanes for the Leander Reef–1 and Houtman–1 samples, which were acquired on purified n-alkane fractions gained by micro-fractionation of lean FI oil samples, showing the technical feasibility of this technique. The Leander Reef–1 FI oil from the top Carynginia Formation shares many biomarker similarities with oils from the Dongara and Yardarino oilfields, which have been correlated with the Early Triassic Kockatea Shale. The heavier isotopic values for the C15-C25 n-alkanes in the Leander Reef–1 FI oil indicate, however, that it is a mixture, and suggest that the main part of this oil (~90%) was sourced from the more terrestrial and isotopically heavier Early Permian Carynginia Formation or Irwin River Coal Measures. This insight would have been precluded when looking at molecular evidence alone. The Houtman–1 FI oil from the top Cattamarra Coal Measures (Middle Jurassic) was sourced from a clay-rich, low sulphur source rock with a significant input of terrestrial organic matter, deposited under oxic to sub-oxic conditions. Biomarkers suggest sourcing from a more prokaryotic-dominated facies than for the other FI oils, possibly a saline lagoon. The Houtman–1 FI oil δ13C CSI n-alkane data are similar to those acquired on the Walyering–2 oil. Possible lacustrine sources may exist in the Early Jurassic Eneabba Formation and are present in the Late Jurassic Yarragadee Formation. The low maturity Gage Roads–2 FI oil from the Carnac Formation (Early Cretaceous) was derived from a strongly terrestrial, non-marine source rock containing a high proportion of Araucariacean-type conifer organic matter. It has some geochemical differences to the presently reservoired oil in Gage Roads–1, and was probably sourced from the Early Cretaceous Parmelia Formation.
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Filatenkov A, Tullius S, Schmidt H, Selke A, Volk H. Arthritis Res Ther 2003; 5:106. [DOI: 10.1186/ar907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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George S, Volk H, Ruble T, Brincat M. EVIDENCE FOR A NEW OIL FAMILY IN THE NANCAR TROUGH AREA, TIMOR SEA. ACTA ACUST UNITED AC 2002. [DOI: 10.1071/aj01021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Geochemical evidence is presented for a previously unrecognised oil generative source rock in the Nancar Trough area. This source rock supplements the middle to late Jurassic source rocks, which have previously been shown to have generated most of the oils in the northern Bonaparte Basin and the Vulcan Sub-basin. Fluids with a strong contribution from this new source rock, defined here as the Nancar oil family, have an unusually high abundance of mid-chain substituted monomethylalkanes. In comparison, oils from the Vulcan Sub-basin contain mostly terminally substituted monomethylalkanes and the overall abundance is much lower. Oils from the Laminaria High and some from the northern Vulcan Sub-Basin show intermediate characteristics and may be co-sourced. Evidence from the analysis of fluid inclusion oils was important in establishing the presence of the new oil family because interference from drilling mud contaminants could be excluded. The detailed geochemistry of Ludmilla–1 fluid inclusion oil suggests the source rock for the Nancar oil family was deposited in a marine environment under sub-oxic conditions with limited sulphur content, a low contribution of terrestrial organic matter and a high contribution of organic matter from bacterial activity. Since monomethylalkanes are typical biomarkers of cyanobacteria, the source rock that gave rise to the new oil family may be rich in cyanobacterial organic matter. Further studies on sediment extracts are needed to establish an explicit oil-source rock correlation and to identify the stratigraphic location/palaeo-environment of the source rock. Such information will be valuable in determining the prospectivity of the large and relatively unexplored province draining the Nancar Trough kitchen.
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Volk H, Asadullah K, Gallagher G, Sabat R, Grutz G. IL-10 and its homologs: important immune mediators and emerging immunotherapeutic targets. Trends Immunol 2001; 22:414-7. [PMID: 11523525 DOI: 10.1016/s1471-4906(01)01985-8] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Tullius SG, Reutzel-Selke A, Nieminen-Kelhä M, Jonas S, Pratschke J, Bechstein WO, Neuhaus P, Volk H. Tolerance induction by the graft itself. Transplant Proc 2001; 33:2317-8. [PMID: 11377544 DOI: 10.1016/s0041-1345(01)02006-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Sabat R, Kolleck I, Witt W, Volk H, Sinha P, Rüstow B. Immunological dysregulation of lung cells in response to vitamin E deficiency. Free Radic Biol Med 2001; 30:1145-53. [PMID: 11369505 DOI: 10.1016/s0891-5849(01)00523-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Vitamin E supplementation exhibits anti-inflammatory properties. In the lung, the beneficial effects of vitamin E supplementation on inflammation and infections are well documented, but potential consequences of alimentary vitamin E deficiency to the immunological status of lung cells are not known. It is unclear if temporary vitamin E deficiency exhibits deleterious consequences or can be compensated for by other cellular antioxidants. To address this question, the alimentary vitamin E supply to rats was modified. We then investigated the effects on major histocompatibility molecule (MHC) class II, cell adhesion molecules, interleukin (IL)10, tumor necrosis factor (TNF)alpha in various lung cells. The constitutive expression of MHC class II, intercellular adhesion molecule (ICAM)-1, L-selectin, alpha5-integrin, and CD 166, was demonstrated by flow cytometry on type II pneumocytes, alveolar macrophages, and on co-isolated lymphocytes. Vitamin E depletion increased ICAM-1 and CD166 on type II cells and macrophages, whereas the expression of L-selectin increased only on macrophages. Furthermore, the vitamin E depletion increased the cellular content and secretion of IL10 in type II cells, but decreased the content and secretion of TNFalpha. Vitamin E depletion decreased the cellular vitamin E content, but did not change the activity of antioxidant enzymes (catalase, superoxide dismutase) and the glutathion (GSH)/oxidized glutathion (GSSG) ratio in alveolar type II cells. The shift of protein kinase C (PKC) from the cytosol to membranes indicates that a PKC-dependent signaling pathway may be involved in the change of the immunological status of type II cells. All these effects were reversed by vitamin E repletion. In summary, these results are clearly compatible with the view that a temporary vitamin E deficiency induces a reversible immunological dysregulation in alveolar type II cells and lung macrophages. This deficiency might predispose the lung to develop acute or chronic inflammation.
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Reutzel-Selke A, Tullius SG, Zschockelt T, Nieminen-Kelhä M, Bachmann U, Jonas S, Pratschke J, Schmidbauer G, Bechstein WO, Volk H, Neuhaus P. Donor pretreatment of grafts from marginal donors improves long-term graft outcome. Transplant Proc 2001; 33:970-1. [PMID: 11267150 DOI: 10.1016/s0041-1345(00)02290-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Risch K, Strebel HP, Joshi RK, Lutz J, Brock J, Asadullah K, Volk H, Lehmann M. Methyl hydrogen fumarate inhibits acute and chronic rejection in rat kidney transplantation models. Transplant Proc 2001; 33:545-6. [PMID: 11266950 DOI: 10.1016/s0041-1345(00)02134-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Tullius SG, Nieminen-Kelhä M, Bachmann U, Reutzel-Selke A, Jonas S, Pratschke J, Bechstein WO, Reinke P, Buelow R, Neuhaus P, Volk H. Induction of heme-oxygenase-1 prevents ischemia/reperfusion injury and improves long-term graft outcome in rat renal allografts. Transplant Proc 2001; 33:1286-7. [PMID: 11267294 DOI: 10.1016/s0041-1345(00)02480-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Tullius SG, Nieminen-Kelhä M, Reutzel-Selke A, Bachmann U, Jonas S, Pratschke J, Bechstein WO, Volk H, Buelow R, Neuhaus P, Reinke P. Improvement of long-term function in renal allografts from 'marginal donors' following the induction of heme-oxygenase-1. Transplant Proc 2001; 33:1160-1. [PMID: 11267237 DOI: 10.1016/s0041-1345(00)02442-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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