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Emmerich P, Müller N, Heinemann P, Rother E, Jakupi X, Günther S, Cadar D, Schmidt-Chanasit J. Human Dobrava-Belgrade hantavirus infection, Kosovo. J Clin Virol 2014; 61:439-41. [PMID: 25441062 DOI: 10.1016/j.jcv.2014.09.013] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Revised: 09/20/2014] [Accepted: 09/22/2014] [Indexed: 11/18/2022]
Abstract
Here we describe an acute Dobrava-Belgrade virus (DOBV) infection that presented as severe hemorrhagic fever with renal syndrome (HFRS) in an active-duty U.S. soldier. The infection was acquired in northern Kosovo in spring 2013. Amplification of DOBV genome segments directly from the patient's serum sample was successfully performed. Phylogenetic analysis demonstrated that the strain belong to DOBV genotype Dobrava and is closely related to strains circulating in Southeast Europe and Slovakia. Thus, our case confirms that DOBV genotype Dobrava is able to cause a severe form of HFRS, especially when compared to the other less pathogenic DOBV genotypes.
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Affiliation(s)
- Petra Emmerich
- Bernhard Nocht Institute for Tropical Medicine, WHO Collaborating Centre for Arbovirus and Hemorrhagic Fever Reference and Research, Hamburg, Germany
| | - Nicole Müller
- Department of Internal Medicine, German Armed Forces Medical Centre, Hamburg, Germany
| | - Patrick Heinemann
- Bernhard Nocht Institute for Tropical Medicine, WHO Collaborating Centre for Arbovirus and Hemorrhagic Fever Reference and Research, Hamburg, Germany; Institute of Medical Virology, Charite Medical School, Berlin, Germany
| | - Enno Rother
- Department of Internal Medicine, German Armed Forces Medical Centre, Ulm, Germany
| | - Xhevat Jakupi
- National Institute of Public Health of Kosovo, Pristina, Kosovo, Serbia
| | - Stephan Günther
- Bernhard Nocht Institute for Tropical Medicine, WHO Collaborating Centre for Arbovirus and Hemorrhagic Fever Reference and Research, Hamburg, Germany
| | - Daniel Cadar
- Bernhard Nocht Institute for Tropical Medicine, WHO Collaborating Centre for Arbovirus and Hemorrhagic Fever Reference and Research, Hamburg, Germany
| | - Jonas Schmidt-Chanasit
- Bernhard Nocht Institute for Tropical Medicine, WHO Collaborating Centre for Arbovirus and Hemorrhagic Fever Reference and Research, Hamburg, Germany; German Centre for Infection Research (DZIF), partner site Hamburg-Luebeck-Borstel, Hamburg, Germany.
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Appel S, Turnwald EM, Alejandre-Alcazar MA, Ankerne J, Rother E, Janoschek R, Wohlfarth M, Vohlen C, Schnare M, Meißner U, Dötsch J. Leptin does not induce an inflammatory response in the murine placenta. Horm Metab Res 2014; 46:384-9. [PMID: 24591047 DOI: 10.1055/s-0034-1368710] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Leptin is described as a pro-inflammatory signal in fat tissue, which is released from adipocytes and in turn activates immune cells. Also, leptin levels are known to be increased in pregnancies complicated with enhanced inflammatory processes in the placenta. Hence, we assumed that increased leptin amounts might contribute to inducing an inflammatory response in the placenta. To test this hypothesis, pregnant mice were continuously infused with recombinant murine leptin s. c. from day g13 to g16, resulting in a 3-fold increase of maternal circulating serum leptin levels. Dissected placentas were examined for the expression of pro-inflammatory cytokines IL-6 and TNF-alpha and the anti-inflammatory cytokine IL-10 using qPCR analysis. No changes were found except for TNF-alpha, which was slightly elevated upon leptin stimulation. However, TNF-alpha protein levels were not significantly higher in placentas from leptin treated mice. Also, leukocyte infiltration in the labyrinth section of placentas was not increased. In summary, our data demonstrate for the first time that elevated leptin levels alone do not induce an inflammatory response in the placenta.
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Affiliation(s)
- S Appel
- Department of Paediatrics and Adolescent Medicine, University of Cologne, Cologne, Germany
| | - E-M Turnwald
- Department of Paediatrics and Adolescent Medicine, University of Cologne, Cologne, Germany
| | - M A Alejandre-Alcazar
- Department of Paediatrics and Adolescent Medicine, University of Cologne, Cologne, Germany
| | - J Ankerne
- Department of Paediatrics and Adolescent Medicine, University of Cologne, Cologne, Germany
| | - E Rother
- Department of Paediatrics and Adolescent Medicine, University of Cologne, Cologne, Germany
| | - R Janoschek
- Department of Paediatrics and Adolescent Medicine, University of Cologne, Cologne, Germany
| | - M Wohlfarth
- Department of Paediatrics and Adolescent Medicine, University of Cologne, Cologne, Germany
| | - C Vohlen
- Department of Paediatrics and Adolescent Medicine, University of Cologne, Cologne, Germany
| | - M Schnare
- Institute for Immunology, University of Marburg, Marburg, Germany
| | | | - J Dötsch
- Department of Paediatrics and Adolescent Medicine, University of Cologne, Cologne, Germany
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Lopez-Navas K, Rother E, Wenkebach U. Comparison of six models of the respiratory system based on parametric estimates from three identification models. BIOMED ENG-BIOMED TE 2012; 57 Suppl 1:/j/bmte.2012.57.issue-s1-O/bmt-2012-4011/bmt-2012-4011.xml. [DOI: 10.1515/bmt-2012-4011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Affiliation(s)
- E Rother
- Institut für Genetik und Zentrum für Molekulare Medizin Köln, Abteilung für Mausgenetik und Metabolismus, Universität zu Köln
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Rother E, Cornel P. Potentials and limits of a pre-denitrification/ nitrification biofilter configuration for advanced municipal wastewater treatment. Water Sci Technol 2007; 55:115-23. [PMID: 17546977 DOI: 10.2166/wst.2007.249] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Pre-denitrification in biofilters is limited by the amount of easily degradable organic substrate, resulting in relatively high requirements for external carbon. The combination of pre-DN, N and post-DN filters is much more advisable for most municipal wastewaters, because the recycle rate can be reduced and external carbon can be saved. For minimum use of external carbon, 100-150% recycle rate should not be exceeded. Then, approximately 50-60% of the total NO3-N can be depleted in the pre-DN stage. On average, 10 g total (t) COD/g NO3-N were required in the pre-DN stage for denitrification in the pilot and full-scale plant and 0.4-0.5 kg NO3-N/(m(3)DN d) can be reached without external carbon. As only 40-70% of the COD load is eliminated in the pre-DN, the remaining COD load is removed in the nitrification stage. 1 kg COD/(m(3) d) suppresses nitrification rates by approximately 0.1 kg NH4-N/(m(3) d). For nitrification rates, > 0.5 kg NH4N/(m(3) d) at 12 degrees C not more than 2 kg COD/(m(3) d) may be eliminated in the nitrification.
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Affiliation(s)
- E Rother
- Degussa AG, Bio- and Environmental Process Technology, Rodenbacher Chaussee 4, 63457 Hanau-Wolfgang, Germany.
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Plum L, Ma X, Hampel B, Münzberg H, Shanabrough M, Rother E, Koch L, Janoschek R, Alber J, Belgardt BF, Krone W, Horvath TL, Ashcroft FM, Brüning JC. Enhanced PIP3 signaling in POMC neurons causes diet-sensitive obesity as the consequence of neuronal silencing via KATP channel activation. DIABETOL STOFFWECHS 2006. [DOI: 10.1055/s-2006-943791] [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: 10/19/2022]
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Rother E, Buch T, Brüning JC. Selective ablation of hypothalamic POMC-expressing neurons leads to hyperphagia and weight gain. DIABETOL STOFFWECHS 2006. [DOI: 10.1055/s-2006-943787] [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]
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Penz S, Reininger AJ, Brandl R, Goyal P, Rabie T, Bernlochner I, Rother E, Goetz C, Engelmann B, Smethurst PA, Ouwehand WH, Farndale R, Nieswandt B, Siess W. Human atheromatous plaques stimulate thrombus formation by activating platelet glycoprotein VI. FASEB J 2005; 19:898-909. [PMID: 15923400 DOI: 10.1096/fj.04-2748com] [Citation(s) in RCA: 109] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Lipid-rich atherosclerotic plaques are vulnerable, and their rupture can cause the formation of a platelet- and fibrin-rich thrombus leading to myocardial infarction and ischemic stroke. Although the role of plaque-based tissue factor as stimulator of blood coagulation has been recognized, it is not known whether plaques can cause thrombus formation through direct activation of platelets. We isolated lipid-rich atheromatous plaques from 60 patients with carotid stenosis and identified morphologically diverse collagen type I- and type III-positive structures in the plaques that directly stimulated adhesion, dense granule secretion, and aggregation of platelets in buffer, plasma, and blood. This material also elicited platelet-monocyte aggregation and platelet-dependent blood coagulation. Plaques exposed to flowing blood at arterial wall shear rate induced platelets to adhere to and spread on the collagenous structures, triggering subsequent thrombus formation. Plaque-induced platelet thrombus formation was observed in fully anticoagulated blood (i.e., in the absence of tissue factor-mediated coagulation). Mice platelets lacking glycoprotein VI (GPVI) were unable to adhere to atheromatous plaque or form thrombi. Human platelet thrombus formation onto plaques in flowing blood was completely blocked by GPVI inhibition with the antibody 10B12 but not affected by integrin alpha2beta1 inhibition with 6F1 mAb. Moreover, the initial platelet response, shape change, induced by plaque was blocked by GPVI inhibition but not with alpha2beta1 antagonists (6F1 mAb or GFOGER-GPP peptide). Pretreatment of plaques with collagenase or anti-collagen type I and anti-collagen type III antibodies abolished plaque-induced platelet activation. Our results indicate that morphologically diverse collagen type I- and collagen type III-containing structures in lipid-rich atherosclerotic plaques stimulate thrombus formation by activating platelet GPVI. This platelet collagen receptor, essential for plaque-induced thrombus formation, presents a promising new anti-thrombotic target for the prevention of ischemic cardiovascular diseases.
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Affiliation(s)
- Sandra Penz
- Institute for Prevention of Cardiovascular Diseases, University of Munich, Munich, Germany
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Rother E, Cornel P. Optimising design, operation and energy consumption of biological aerated filters (BAF) for nitrogen removal of municipal wastewater. Water Sci Technol 2004; 50:131-139. [PMID: 15537000] [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] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The Biofiltration process in wastewater treatment combines filtration and biological processes in one reactor. In Europe it is meanwhile an accepted technology in advanced wastewater treatment, whenever space is scarce and a virtually suspended solids-free effluent is demanded. Although more than 500 plants are in operation world-wide there is still a lack of published operational experiences to help planners and operators to identify potentials for optimisation, e.g. energy consumption or the vulnerability against peakloads. Examples from pilot trials are given how the nitrification and denitrification can be optimised. Nitrification can be quickly increased by adjusting DO content of the water. Furthermore carrier materials like zeolites can store surplus ammonia during peak loads and release afterwards. Pre-denitrification in biofilters is normally limited by the amount of easily degradable organic substrate, resulting in relatively high requirements for external carbon. The combination of pre-DN, N and post-DN filters is much more advisable for most municipal wastewaters, because the recycle rate can be reduced and external carbon can be saved. Exemplarily it is shown for a full scale preanoxic-DN/N/postanoxic-DN plant of 130,000 p.e. how 15% energy could be saved by optimising internal recycling and some control strategies.
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Affiliation(s)
- E Rother
- Technische Universität Darmstadt, Institute WAR (Water Supply and Groundwater Protection, Wastewater Technology, Waste Management, Industrial Material Cycles, Environmental Planning), Section Wastewater Technology, 64287 Darmstadt, Germany
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Rother E, Brandl R, Baker DL, Goyal P, Gebhard H, Tigyi G, Siess W. Subtype-selective antagonists of lysophosphatidic Acid receptors inhibit platelet activation triggered by the lipid core of atherosclerotic plaques. Circulation 2003; 108:741-7. [PMID: 12885756 DOI: 10.1161/01.cir.0000083715.37658.c4] [Citation(s) in RCA: 131] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Lysophosphatidic acid (LPA) is a platelet-activating component of mildly oxidized LDL (mox-LDL) and lipids isolated from human atherosclerotic plaques. Specific antagonists of platelet LPA receptors could be useful inhibitors of thrombus formation in patients with cardiovascular disease. METHODS AND RESULTS Short-chain analogs of phosphatidic acid (PA) were examined for their effect on two initial platelet responses, platelet shape change and Ca2+ mobilization. Dioctylglycerol pyrophosphate [DGPP(8:0)] and dioctylphosphatidic acid [PA(8:0)], recently described selective antagonists of the LPA1 and LPA3 receptors, inhibited platelet activation evoked by LPA but not by other platelet stimuli. DGPP(8:0) was more potent than PA(8:0). DGPP(8:0) also inhibited platelet shape change induced by mox-LDL and lipid extracts from human atherosclerotic plaques. Notably, we demonstrate for the first time that the lipid-rich core isolated from soft plaques was able to directly induce shape change. This effect was completely abrogated by prior incubation of platelets with DGPP(8:0). Moreover, coapplication of the lipid-rich core or LPA together with subthreshold concentrations of ADP or epinephrine synergistically induced platelet aggregation; this effect was inhibited by DGPP(8:0). Analysis by liquid chromatography-mass spectrometry revealed the presence of LPA alkyl- and acyl-molecular species with high platelet-activating potency (16:0-alkyl-LPA, 20:4-acyl-LPA). CONCLUSIONS LPA molecules present in the core region of atherosclerotic plaques trigger rapid platelet activation through the stimulation of LPA1 and LPA3 receptors. Antagonists of platelet LPA receptors might provide a new strategy to prevent thrombus formation in patients with cardiovascular diseases.
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Affiliation(s)
- Enno Rother
- Institute for Prevention of Cardiovascular Diseases, Medical Faculty, University Munich, Germany
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Rother E, Cornel P, Ante A, Kleinert P, Brambach R. Comparison of combined and separated biological aerated filter (BAF) performance for pre-denitrification/nitrification of municipal wastewater. Water Sci Technol 2002; 46:149-156. [PMID: 12361003] [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] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The performance of two systems of semi-industrial up-flow biological aerated filters (BAF) with pre-denitrification followed by nitrification was studied and compared under various operating and loading conditions. The first system consisted of two separate reactors for the denitrification and the nitrification step, whereas in the second system the aerobic nitrification zone was packed on top of the anoxic denitrification zone in one reactor. The second system potentially offers substantial savings in investment costs and space requirements for a large scale treatment plant. Regarding the elimination of carbonaceous pollution and denitrification the systems did not show significant differences. However, nitrification in the combined system suffered from the mixing of different biocenosis by daily backwashing and was reduced to 50-70% of the separated system's performance. Factors such as oxygen concentration, raw water composition and loading rates affected both systems' nitrification rates in similar ways. Since it is impossible to optimise the nitrification and denitrification processes separately, the combined system should only be considered for large scale applications if space is very scarce and if a stable raw water composition can be expected. If strict limit values for nitrate have to be met in the effluent, a combination of pre- and post-denitrification is advantageous and advisable.
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Affiliation(s)
- E Rother
- Darmstadt University of Technology, Institute WAR, Section Wastewater Technology, Germany
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Rother E, Jander G. Die kontinuierliche Kontrolle des Salzgehaltes von Kesselspeisewasser mittels visuell durchgeführter Leitfähigkeitsmessungen. Angew Chem Int Ed Engl 1931. [DOI: 10.1002/ange.19310441706] [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: 11/07/2022]
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Rother E, Jander G. Die kontinuierliche Kontrolle des Salzgehaltes von Kesselspeisewasser Mittels visuell durchgeführter Leitfähigkeitsmessungen. Angew Chem Int Ed Engl 1930. [DOI: 10.1002/ange.19300434305] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [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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Rother E, Jander G. Die maßanalytische Bestimmung einiger seltenerer Metalle mittels der visuellen Leitfähigkeitstitration. Angew Chem Int Ed Engl 1930. [DOI: 10.1002/ange.19300434206] [Citation(s) in RCA: 6] [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: 11/05/2022]
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