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Rodriguez KM, Vaught J, Dilley M, Ellsworth K, Heinen A, Abud EM, Zhang Y, Smith RJH, Sheets R, Geng B, Hoffman HM, Worthen HM, Dimmock D, Coufal NG. Rapid genome sequencing identifies novel variants in complement factor I. Cold Spring Harb Mol Case Stud 2022; 8:a006239. [PMID: 36577522 PMCID: PMC9808552 DOI: 10.1101/mcs.a006239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 10/05/2022] [Indexed: 12/30/2022] Open
Abstract
Complement factor I deficiency (CFID; OMIM #610984) is a rare immunodeficiency caused by deficiencies in the serine protease complement factor I (CFI). CFID is characterized by predisposition to severe pneumococcal infection, often in infancy. We report a previously healthy adolescent male who presented with respiratory failure secondary to pneumococcal pneumonia and severe systemic inflammatory response. Rapid genome sequencing (rGS) identified compound heterozygous variants in CFI in the proband, with a novel maternally inherited likely pathogenic variant, a single nucleotide deletion resulting in premature stop (c.1646del; p.Asn549ThrfsTer25) and a paternally inherited novel likely pathogenic deletion (Chr 4:110685580-110692197del).
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Affiliation(s)
- Katherine M Rodriguez
- Rady Children's Hospital, San Diego, California 92123, USA
- Division of Pediatric Critical Care, Department of Pediatrics, University of California at San Diego, San Diego, California 92123, USA
- Rady Children's Institute for Genomic Medicine, San Diego, California 92123, USA
| | - Jordan Vaught
- Rady Children's Hospital, San Diego, California 92123, USA
- Department of Pediatrics, Immunology, and Rheumatology, Department of Pediatrics, University of California at San Diego, San Diego, California 92161, USA
| | - Michelle Dilley
- Rady Children's Hospital, San Diego, California 92123, USA
- Division of Allergy, Immunology, and Rheumatology, Department of Pediatrics, University of California at San Diego, San Diego, California 92161, USA
| | - Kataryzna Ellsworth
- Rady Children's Institute for Genomic Medicine, San Diego, California 92123, USA
| | - Alaina Heinen
- Rady Children's Institute for Genomic Medicine, San Diego, California 92123, USA
| | - Edsel M Abud
- Division of Allergy, Immunology, and Rheumatology, Department of Pediatrics, University of California at San Diego, San Diego, California 92161, USA
- Division of Allergy, Asthma, and Immunology, Scripps Clinic, San Diego, California 92093, USA
| | - Yuzhou Zhang
- Molecular Otolaryngology and Renal Research Laboratories, University of Iowa, Iowa City, Iowa 52242, USA
| | - Richard J H Smith
- Molecular Otolaryngology and Renal Research Laboratories, University of Iowa, Iowa City, Iowa 52242, USA
| | - Robert Sheets
- Rady Children's Hospital, San Diego, California 92123, USA
- Division of Allergy, Immunology, and Rheumatology, Department of Pediatrics, University of California at San Diego, San Diego, California 92161, USA
| | - Bob Geng
- Rady Children's Hospital, San Diego, California 92123, USA
- Division of Allergy, Immunology, and Rheumatology, Department of Pediatrics, University of California at San Diego, San Diego, California 92161, USA
| | - Hal M Hoffman
- Rady Children's Hospital, San Diego, California 92123, USA
- Division of Allergy, Immunology, and Rheumatology, Department of Pediatrics, University of California at San Diego, San Diego, California 92161, USA
| | - H Michael Worthen
- Rady Children's Hospital, San Diego, California 92123, USA
- Division of Pediatric Critical Care, Department of Pediatrics, University of California at San Diego, San Diego, California 92123, USA
| | - David Dimmock
- Rady Children's Institute for Genomic Medicine, San Diego, California 92123, USA
| | - Nicole G Coufal
- Rady Children's Hospital, San Diego, California 92123, USA
- Division of Pediatric Critical Care, Department of Pediatrics, University of California at San Diego, San Diego, California 92123, USA
- Rady Children's Institute for Genomic Medicine, San Diego, California 92123, USA
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Lujan JV, Lengerke-Diaz PA, Jacobs C, Moreno-Cortes EF, Ramirez-Segura CA, Choi MY, McCarthy C, Heinen A, Kipps TJ, Castro JE. Ibrutinib reduces obinutuzumab infusion-related reactions in patients with chronic lymphocytic leukemia and is associated with changes in plasma cytokine levels. Haematologica 2019; 105:e22-e25. [PMID: 31048356 DOI: 10.3324/haematol.2018.212597] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
| | | | - Chaja Jacobs
- UC San Diego Moores Cancer Center, San Diego, CA
| | | | | | | | | | | | | | - Januario E Castro
- UC San Diego Moores Cancer Center, San Diego, CA .,Mayo Clinic, Scottsdale, AZ, USA
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Heinen A, Hossmann V, Fuchs M, McDonald F, Kreuzer J, Höpp H, Hombach V, Hirche H, Arnold G. Hemorheologic and hemodynamic problems to investigate protective intracoronary perfusion through the dilation catheter (DC) during percutaneous transluminal coronary angioplasty (PCTA)1. Clin Hemorheol Microcirc 2016. [DOI: 10.3233/ch-1985-5519] [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: 11/15/2022]
Affiliation(s)
- A. Heinen
- Medizinische Klinik II, der Universität zu Köln, Josef-Stelzmann-Str. 9, D-5000 Köln 41, F.R. Germany
| | - V. Hossmann
- Medizinische Klinik II, der Universität zu Köln, Josef-Stelzmann-Str. 9, D-5000 Köln 41, F.R. Germany
| | - M. Fuchs
- Medizinische Klinik III, der Universität zu Köln, Josef-Stelzmann-Str. 9, D-5000 Köln 41, F.R. Germany
| | - F.M. McDonald
- Lehrstuhl für Angewandte Physiologie, der Universität zu Köln, Josef-Stelzmann-Str. 9, D-5000 Köln 41, F.R. Germany
| | - J. Kreuzer
- Lehrstuhl für Angewandte Physiologie, der Universität zu Köln, Josef-Stelzmann-Str. 9, D-5000 Köln 41, F.R. Germany
| | - H.W. Höpp
- Medizinische Klinik III, der Universität zu Köln, Josef-Stelzmann-Str. 9, D-5000 Köln 41, F.R. Germany
| | - V. Hombach
- Medizinische Klinik III, der Universität zu Köln, Josef-Stelzmann-Str. 9, D-5000 Köln 41, F.R. Germany
| | - H. Hirche
- Lehrstuhl für Angewandte Physiologie, der Universität zu Köln, Josef-Stelzmann-Str. 9, D-5000 Köln 41, F.R. Germany
| | - G. Arnold
- Pathologisches Institut, der Universität zu Köln, Josef-Stelzmann-Str. 9, D-5000 Köln 41, F.R. Germany
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Heinen A, Brunner R, Hossmann V. Hemorheological effects of different solutions of dextran, albumin, gelatine and hydroxyethyl starch. Clin Hemorheol Microcirc 2016. [DOI: 10.3233/ch-1986-6211] [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: 11/15/2022]
Affiliation(s)
- A. Heinen
- Medizinische Klinik II (Dir. Prof. Dr. med W. Kaufmann), der Univesität zu Köln, Josef-Stelzmann-Str. 9, D-5000 Köln 41
| | - R. Brunner
- Augenklinik (Dir. Prof. Dr. med. H. Neubaur), der Univesität zu Köln, Josef-Stelzmann-Str. 9, D-5000 Köln 41
| | - V. Hossmann
- Medizinische Klinik II (Dir. Prof. Dr. med W. Kaufmann), der Univesität zu Köln, Josef-Stelzmann-Str. 9, D-5000 Köln 41
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Heinen A, Brunner R, Hossmann V, Konen W, Roll K, Wawer T. Different types of therapy having haemorheological effects in patients with impairment of blood supply to the retina. Clin Hemorheol Microcirc 2016. [DOI: 10.3233/ch-1986-6108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- A. Heinen
- Medical Clinic II of the University of Cologne (Director Prof.Dr.W.Kaufmann)
- Eye Clinic of the University of Cologne (Director Prof.Dr.H.Neubauer)
| | - R. Brunner
- Medical Clinic II of the University of Cologne (Director Prof.Dr.W.Kaufmann)
- Eye Clinic of the University of Cologne (Director Prof.Dr.H.Neubauer)
| | - V. Hossmann
- Medical Clinic II of the University of Cologne (Director Prof.Dr.W.Kaufmann)
- Eye Clinic of the University of Cologne (Director Prof.Dr.H.Neubauer)
| | - W. Konen
- Medical Clinic II of the University of Cologne (Director Prof.Dr.W.Kaufmann)
- Eye Clinic of the University of Cologne (Director Prof.Dr.H.Neubauer)
| | - K. Roll
- Medical Clinic II of the University of Cologne (Director Prof.Dr.W.Kaufmann)
- Eye Clinic of the University of Cologne (Director Prof.Dr.H.Neubauer)
| | - Th. Wawer
- Medical Clinic II of the University of Cologne (Director Prof.Dr.W.Kaufmann)
- Eye Clinic of the University of Cologne (Director Prof.Dr.H.Neubauer)
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Herminghaus A, Barthel F, Heinen A, Beck C, Vollmer C, Bauer I, Weidinger A, Kozlov A, Picker O. Severity of polymicrobial sepsis modulates mitochondrial function in rat liver. Mitochondrion 2015; 24:122-8. [DOI: 10.1016/j.mito.2015.08.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Revised: 08/05/2015] [Accepted: 08/10/2015] [Indexed: 01/14/2023]
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Emde B, Heinen A, Gödecke A, Bottermann K. Wheat germ agglutinin staining as a suitable method for detection and quantification of fibrosis in cardiac tissue after myocardial infarction. Eur J Histochem 2014; 58:2448. [PMID: 25578975 PMCID: PMC4289847 DOI: 10.4081/ejh.2014.2448] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 11/19/2014] [Accepted: 12/01/2014] [Indexed: 11/30/2022] Open
Abstract
The quantification of fibrotic tissue is an important task in the analysis of cardiac remodeling. The use of established fibrosis staining techniques is limited on frozen cardiac tissue sections due to a reduced color contrast compared to paraffin embedded sections. We therefore used FITC-labeled wheat germ agglutinin (WGA), which marks fibrotic tissue in comparable quality as the established picrosirius red (SR) staining, for the staining of post myocardial infarction scar tissue. The fibrosis amount was quantified in a histogram-based approach using the non-commercial image processing program ImageJ. Our results clearly demonstrate that WGA-FITC is a suitable marker for cardiac fibrosis in frozen tissue sections. In combination with the histogram-based analysis, this new quantification approach is i) easy and fast to perform; ii) suitable for raw frozen tissue sections; and iii) allows the use of additional antibodies in co-immunostaining.
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Affiliation(s)
- B Emde
- Heinrich-Heine University Düsseldorf.
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Heinen A, Hofmann M, Heinen A. Multi sensorial perception of music incorporation with a vibrating rhythmic mat. Eur J Integr Med 2010. [DOI: 10.1016/j.eujim.2010.09.187] [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: 10/18/2022]
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Boot B, Heinen A. Follow-up measurements with voice frequency analysis (VFA) and a symptom score 1–2 years after treatment of pollen allergy with Multi-Integrative Kinesiology Activity (MIKA). Eur J Integr Med 2010. [DOI: 10.1016/j.eujim.2010.09.159] [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: 11/15/2022]
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Huhn R, Heinen A, Hollmann MW, Schlack W, Preckel B, Weber NC. Cyclosporine A administered during reperfusion fails to restore cardioprotection in prediabetic Zucker obese rats in vivo. Nutr Metab Cardiovasc Dis 2010; 20:706-712. [PMID: 19819119 DOI: 10.1016/j.numecd.2009.06.010] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2009] [Revised: 06/03/2009] [Accepted: 06/23/2009] [Indexed: 11/21/2022]
Abstract
BACKGROUND AND AIMS Hyperglycaemia blocks sevoflurane-induced postconditioning, and cardioprotection in hyperglycaemic myocardium can be restored by inhibition of the mitochondrial permeability transition pore (mPTP). We investigated whether sevoflurane-induced postconditioning is also blocked in the prediabetic heart and if so, whether cardioprotection could be restored by inhibiting mPTP. METHODS AND RESULTS Zucker lean (ZL) and Zucker obese (ZO) rats were assigned to one of seven groups. Animals underwent 25 min of ischaemia and 120 min of reperfusion. Control (ZL-/ZO Con) animals were not further treated. postconditioning groups (ZL-/ZO Sevo-post) received sevoflurane for 5 min starting 1min prior to the onset of reperfusion. The mPTP inhibitor cyclosporine A (CsA) was administered intravenously in a concentration of 5 (ZO CsA and ZO CsA+Sevo-post) or 10 mg/kg (ZO CsA10+Sevo-post) 5 min before the onset of reperfusion. At the end of reperfusion, infarct sizes were measured by TTC staining. Blood samples were collected to measure plasma levels of insulin, cholesterol and triglycerides. Sevoflurane postconditioning reduced infarct size in ZL rats to 35±12% (p<0.05 vs. ZL Con: 60±6%). In ZO rats sevoflurane postconditioning was abolished (ZO Sevo-post: 59±12%, n.s. vs. ZO Con: 58±6%). 5 mg and 10 mg CsA could not restore cardioprotection (ZO CsA+Sevo-post: 59±7%, ZO CsA10+Sevo-post: 57±14%; n.s. vs. ZO Con). In ZO rats insulin, cholesterol and triglyceride levels were significant higher than in ZL rats (all p<0.05). CONCLUSION Inhibition of mPTP with CsA failed to restore cardioprotection in the prediabetic but normoglycaemic heart of Zucker obese rats in vivo.
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Affiliation(s)
- R Huhn
- Department of Anaesthesiology, Academic Medical Centre (AMC), University of Amsterdam, Amsterdam, The Netherlands
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Huhn R, Heinen A, Weber NC, Schlack W, Preckel B, Hollmann MW. Ischaemic and morphine-induced post-conditioning: impact of mK(Ca) channels. Br J Anaesth 2010; 105:589-95. [PMID: 20693178 DOI: 10.1093/bja/aeq213] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Mitochondrial calcium-sensitive potassium (mK(Ca)) channels are involved in cardiac preconditioning. In the present study, we investigated whether also ischaemic-, morphine-induced post-conditioning, or both is mediated by the activation of mK(Ca) channels in the rat heart in vitro. METHODS Animals were treated in compliance with institutional and national guidelines. Male Wistar rats were randomly assigned to one of seven groups (each n = 7). Control animals were not further treated. Post-conditioning was induced either by 3 × 30 s of ischaemia/reperfusion (I-PostC) or by administration of morphine (M-PostC, 1 µM) for 15 min at the onset of reperfusion. The mK(Ca)-channel inhibitor paxilline (1 µM) was given with and without post-conditioning interventions (M-PostC+Pax, I-PostC+Pax, and Pax). As a positive control, we determined whether direct activation of mK(Ca) channels with NS1619 (10 µM) induced cardiac post-conditioning (NS1619). Isolated hearts underwent 35 min ischaemia followed by 120 min reperfusion. At the end of reperfusion, infarct sizes were measured by triphenyltetrazolium chloride staining. RESULTS In the control group, infarct size was 53 (5)% of the area at risk. Morphine- and ischaemic post-conditioning reduced infarct size in the same range [M-PostC: 37 (4)%, I-PostC: 35 (5)%; each P<0.05 vs control]. The mK(Ca)-channel inhibitor paxilline completely blocked post-conditioning [M-PostC+Pax: 47 (7)%, I-PostC+Pax: 51 (3)%; each P<0.05 vs M-PostC and I-PostC, respectively]. Paxilline itself had no effect on infarct size (NS vs control). NS1619 reduced infarct size to 33 (4)% (P < 0.05 vs control). CONCLUSIONS Ischaemic- and morphine-induced post-conditioning is mediated by the activation of mK(Ca) channels.
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Affiliation(s)
- R Huhn
- Department of Anaesthesiology, University Hospital Duesseldorf, University Hospital Duesseldorf
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Huhn R, Heinen A, Weber N, Hieber S, Hollmann M, Schlack W, Preckel B. Helium-induced late preconditioning in the rat heart in vivo †. Br J Anaesth 2009; 102:614-9. [DOI: 10.1093/bja/aep042] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
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Huhn R, Heinen A, Weber NC, Kerindongo RP, Oei GTML, Hollmann MW, Schlack W, Preckel B. Helium-Induced Early Preconditioning and Postconditioning Are Abolished in Obese Zucker Rats in Vivo. J Pharmacol Exp Ther 2009; 329:600-7. [DOI: 10.1124/jpet.108.149971] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Huhn R, Heinen A, Weber NC, Hollmann MW, Schlack W, Preckel B. Hyperglycaemia blocks sevoflurane-induced postconditioning in the rat heart in vivo: cardioprotection can be restored by blocking the mitochondrial permeability transition pore. Br J Anaesth 2008; 100:465-71. [PMID: 18305078 DOI: 10.1093/bja/aen022] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Recent studies showed that hyperglycaemia (HG) blocks anaesthetic-induced preconditioning. The influence of HG on anaesthetic-induced postconditioning (post) has not yet been determined. We investigated whether sevoflurane (Sevo)-induced postconditioning is blocked by HG and whether the blockade could be reversed by inhibiting the mitochondrial permeability transition pore (mPTP) with cyclosporine A (CsA). METHODS Chloralose-anaesthetized rats (n=7-11 per group) were subjected to 25 min coronary artery occlusion followed by 120 min reperfusion. Postconditioning was achieved by administration of 1 or 2 MAC sevoflurane for the first 5 min of early reperfusion. HG was induced by infusion of glucose 50% (G 50) for 35 min, starting 5 min before ischaemia up to 5 min of reperfusion. CsA (5 or 10 mg kg(-1)) was administered i.v. 5 min before the onset of reperfusion. At the end of the experiments, hearts were excised for infarct size measurements. RESULTS Infarct size (% of area at risk) was reduced from 51.4 (5.0)% [mean (sd)] in controls to 32.7 (12.8)% after sevoflurane postconditioning (Sevo-post) (P<0.05). This infarct size reduction was completely abolished by HG [51.1 (13.2)%, P<0.05 vs Sevo-post], but was restored by administration of sevoflurane with CsA [35.2 (5.2)%, P<0.05 vs HG+Sevo-post]. Increased concentrations of sevoflurane or CsA alone could not restore cardioprotection in a state of HG [Sevo-post2, 54.1 (12.6)%, P>0.05 vs HG+Sevo-post; CsA10, 58.8 (11.3)%, P>0.05 vs HG+CsA]. CONCLUSIONS Sevoflurane-induced postconditioning is blocked by HG. Inhibition of the mPTP with CsA is able to reverse this loss of cardioprotection.
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Affiliation(s)
- R Huhn
- Laboratory of Experimental Intensive Care and Anaesthesiology, Academic Medical Center, Department of Anaesthesiology, University of Amsterdam, Meibergdreef 9, 1100 DD Amsterdam, The Netherlands
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Spornraft-Ragaller P, Bär M, Bauer A, Meurer M, Eben R, Walk R, Summer B, Maier S, Przybilla B, Thomas P, Meno K, Bøg A, Giselsson A, Grosch K, Nordskov Hansen G, Jimeno L, Polo F, Wolf H, Ipsen H, Weßbecher R, Paschke A, Zick C, Schrägle J, Hinsch K, Sander I, Fleischer C, Meurer U, Brüning T, Raulf-Heimsoth M, Heinen A, Scherf H, Scherf HP, Esser P, Weber V, Martin S, Heßelmann M, Ruëff F, Lee HH, Ernst D, Zuberbier T, Worm M, Mertens M, Brehler R, Braren I, Greunke K, Bredehorst R, Grunwald T, Spillner E. Diagnostik. Allergo J 2007. [DOI: 10.1007/bf03370609] [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: 10/21/2022]
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Heinen A, Brüss M, Bönisch H, Göthert M, Molderings GJ. Pharmacological characteristics of the specific transporter for the endogenous cell growth inhibitor agmatine in six tumor cell lines. Int J Colorectal Dis 2003; 18:314-9. [PMID: 12774246 DOI: 10.1007/s00384-002-0466-8] [Citation(s) in RCA: 10] [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] [Accepted: 11/12/2002] [Indexed: 02/04/2023]
Abstract
BACKGROUND AND AIMS This study examined agmatine transport into six human intestinal tumor cell lines and compared the pharmacological properties of this transporter with those of the agmatine carrier previously characterized in human glioblastoma cells. METHODS Carrier-mediated uptake was determined as specific accumulation of [(14)C]agmatine in the cells. The changes in intracellular agmatine concentration in the tumor cells after 24 h incubation with 1 mM agmatine was analyzed by high-performance liquid chromatography. RESULTS Specific [(14)C]agmatine accumulation was found in the six human intestinal tumor cell lines Caco2, Cx1, Colo320, HT29, Colo205E, and SW480. Specific [(14)C]agmatine accumulation was inhibited by phentolamine, putrescine, spermine, clonidine, and decynium-22 but not by corticosterone, O-methylisoprenaline, or l-carnitine. Incubation with exogenous agmatine for 24 h increased intracellular agmatine content in all cell lines by a multiple of the basal endogenous content. Transfection of HEK293 cells with cDNA encoding either hOCT1, hOCT2, or hOCT3 did not enhance [(14)C]agmatine accumulation compared to nontransfected cells. CONCLUSION All intestinal tumor cell lines investigated express a functional specific agmatine transporter which exhibit pharmacological characteristics similar to those of the agmatine transporter in glioblastoma cells. This agmatine carrier is not identical with any so far known organic cation transport system.
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Affiliation(s)
- A Heinen
- Institute of Pharmacology and Toxicology, University of Bonn, Reuterstrasse 2b, 53113, Bonn, Germany
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Müllenheim J, Schlack W, Frässdorf J, Heinen A, Preckel B, Thämer V. Additive protective effects of late and early ischaemic preconditioning are mediated by the opening of KATP channels in vivo. Pflugers Arch 2001; 442:178-87. [PMID: 11417211 DOI: 10.1007/s004240100514] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [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: 10/27/2022]
Abstract
We investigated whether a combination of ischaemic late preconditioning (LPC) and ischaemic early preconditioning (EPC) induces additive myocardial protection in vivo, and the role of ATP-sensitive K (KATP) channels in ischaemic LPC and in LPC + EPC. Sixty rabbits were divided into seven groups. Anaesthetized animals were subjected to 30 min of coronary artery occlusion and 120 min of reperfusion (I/R). Controls (CON, n = 9) were not preconditioned. LPC (n = 10) was induced in conscious rabbits by a 5-min period of myocardial ischaemia 24 h before I/R. The KATP channel blocker 5-hydroxydecanoate (5-HD, 5 mg/kg) was given 10 min before I/R with (LPC + 5-HD, n = 9) or without LPC (5-HD, n = 8). EPC (n = 8) was induced by a 5-min period of myocardial ischaemia 10 min before I/R. Animals received LPC and EPC without (LPC + EPC, n = 8) or with 5-HD (LPC + EPC + 5-HD, n = 8). LPC reduced infarct size (IS, triphenyltetrazolium staining) from 57 +/- 11% (MW +/- SD, CON) of the area at risk to 31 +/- 19% (LPC, P = 0.004). 5-HD did not affect IS (5-HD: 60 +/- 12%, P = 0.002 versus LPC), but abolished the cardioprotective effects of LPC (LPC + 5-HD: 62 +/- 18%, P = 0.001 versus LPC). EPC reduced IS to 18 +/- 8%. Additional LPC led to a further reduction to 8 +/- 4% (LPC + EPC, n = 8; P = 0.005 versus EPC; P = 0.004 versus LPC). 5-HD abolished this additional cardioprotective effect of LPC + EPC (LPC + EPC + 5-HD, n = 8; 46 +/- 11%, P < or = 0.001 versus LPC + EPC). We conclude that the combination of ischaemic LPC and EPC induces additive cardioprotection. KATP channel opening mediates the cardioprotective effects of ischaemic LPC and LPC + EPC.
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Affiliation(s)
- J Müllenheim
- Klinik für Anaesthesiologie, Heinrich-Heine-Universität, Postfach 10 10 07, 40001 Düsseldorf, Germany.
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Mösges R, Heinen A, Höfener J. [Semi-automatic TNM classification of malignant tumors with the ESTER system exemplified by the larynx]. HNO 1991; 39:396-400. [PMID: 1748573] [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: 12/28/2022]
Abstract
Classification of tumours according to the TNM scheme has been accepted worldwide. However, vague baseline assessments and borderline cases render a comparison of the outcome on the basis of TNM classification impossible. Therefore we integrated the TNM rules as a new algorithm into an existing expert system for determining therapy. Thus, every tumour documented with the ESTHER system is automatically classified according to current TNM rules. The program is designed to cope with future changes of the TNM system: raw data are used for classification so that only the algorithms need to be modified.
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Affiliation(s)
- R Mösges
- Klinik für Hals-, Nasen-, Ohren-Heikunde und Plastische Kopf- und Halschirurgie der RWTH Aachen
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McDonald FM, Fuchs M, Kreuzer J, Höpp HW, Heinen A, Arnold G, Heymans L, Hirche H, Hombach V. Haemodynamic and antiarrhythmic protective effects of intracoronary perfusion during percutaneous transluminal coronary angioplasty. Eur Heart J 1985; 6:284-93. [PMID: 2411562 DOI: 10.1093/oxfordjournals.eurheartj.a061855] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
In 17 anaesthetized open-chest pigs, experiments were performed to determine if a myocardial protective effect can be obtained by intracoronary perfusion through the dilatation catheter during balloon inflation for percutaneous transluminal coronary angioplasty. Placement of the catheter such that the balloon lay in the middle third of the left anterior descending coronary artery caused a significant deterioration in haemodynamic status prior to balloon inflation, and on 5 occasions led to the development of ventricular fibrillation (VF). Balloon inflation without perfusion for periods of up to 5 min produced further haemodynamic deterioration, and culminated in VF in 4/14 cases. Simultaneous perfusion during balloon inflation (proximal perfusion pressure 900-1200 mmHg), with flow rates of 14.5 ml min-1 for arterial whole blood and 21 +/- 7 ml min-1 for blood diluted with 0.90% NaCl (haematocrit approx. 25%), not only prevented the haemodynamic deterioration but resulted in an improvement compared with values obtained with the catheter in position prior to balloon inflation. In no case did VF occur during 5 min of balloon inflation plus perfusion. The use of diluted blood as the perfusate was not associated with intracatheter thrombus formation, which was sometimes seen as a complication of whole blood perfusion.
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Heinen A, Brunner R, Hossmann V, Konen W, Roll K, Wawer T. [Changes in hemorheologic and physiologic coagulation parameters in different methods of therapy of retinal vascular disorders--a randomized double-blind study]. Fortschr Ophthalmol 1984; 81:444-448. [PMID: 6389282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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Hossman V, Heinen A, Auel H, FitzGerald GA. A randomized, placebo controlled trial of prostacyclin (PGI2) in peripheral arterial disease. Thromb Res 1981; 22:481-90. [PMID: 7027528 DOI: 10.1016/0049-3848(81)90109-2] [Citation(s) in RCA: 35] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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