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van der Want GM, Peters H, Inklaar P. Synthesis of linear oligomers of ε-amino. Caproic acid: Synthesis of a tri-, tetra- and penta-ω-peptide. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19520711209] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Bamforth SD, Venkatesh D, Xu PX, Kist R, Peters H. 006 The pharyngeal endoderm in cardiovascular patterning. BRITISH HEART JOURNAL 2010. [DOI: 10.1136/hrt.2010.195941.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Liefeldt L, Rylski B, Walcher F, Manhart J, Kron S, Rosenke YW, Paul M, Neumayer HH, Amann K, Peters H. Effects of transgenic endothelin-2 overexpression on diabetic cardiomyopathy in rats. Eur J Clin Invest 2010; 40:203-10. [PMID: 20100233 DOI: 10.1111/j.1365-2362.2009.02251.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Transgenic overexpression of human endothelin-2 in rats was used to characterize the contribution of endothelin to diabetic cardiomyopathy. MATERIALS AND METHODS Diabetes mellitus was induced by streptozotocin in transgenic rats and transgene-negative controls. Nondiabetic animals were included as well to form a 4-group study design. Heart morphological and molecular alterations were analysed following 6 months of hyperglycaemia. RESULTS Plasma endothelin concentrations were significantly higher in both transgenic groups than in wild-type groups (nondiabetic: 3.5 +/- 0.4 vs. 2.1 +/- 0.2, P < 0.05; diabetic: 4.5 +/- 0.4 vs. 2.5 +/- 0.4 fmol mL(-1), P < 0.01). Diabetes induced cardiac hypertrophy in both wild-type and transgenic rats and showed the highest myocardial interstitial tissue volume density in diabetic transgenic rats (1.5 +/- 0.07%) as compared with nondiabetic transgenic (1.1 +/- 0.03%), nondiabetic wild-type (0.8 +/- 0.01%) and diabetic wild-type rats (1.1 +/- 0.03%; P < 0.01 for all comparisons). A similar pattern with the most severe changes in the enothelin-2 transgenic, diabetic animals was observed for hypertrophy of the large coronary arteries and the small intramyocardial arterioles respectively. Cardiac mRNA expression of endothelin-1, endothelin receptors type A and B were altered in some degree by diabetes or transgenic overexpression of endothelin-2, but not in a uniform manner. Blood pressure did not differ between any of the four groups. CONCLUSIONS Overexpression of the human endothelin-2 gene in rats aggravates diabetic cardiomyopathy by more severe coronary and intramyocardial vessel hypertrophy and myocardial interstitial fibrosis. This transgenic intervention provides further and independent support for a detrimental, blood pressure-independent role of endothelins in diabetic cardiac changes.
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Müller H, Witzenrath M, Hellwig K, Tschernig T, Schmiedl A, Gutbier B, Schmeck B, Hippenstiel S, Peters H, Suttorp N, Rosseau S. Simvastatin limitiert Beatmungsassoziierte Lungenschädigung im Mausmodell. Pneumologie 2010. [DOI: 10.1055/s-0030-1251437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Müller H, Witzenrath M, Hellwig K, Tschernig T, Schmiedl A, Gutbier B, Schmeck B, Hippenstiel S, Peters H, Suttorp N, Rosseau S. Simvastatin limitiert Beatmungsassoziierte Lungenschädigung im Mausmodell. Pneumologie 2010. [DOI: 10.1055/s-0030-1251086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Slowinski T, Lieker I, Sander M, Khadzhynov D, Morgera S, Neumayer H, Peters H. Recurrent early filter clotting in regional citrate anticoagulated continuous venovenous hemodialysis due to undetected antibodies to heparin-platelet factor 4 complexes. Crit Care 2010. [PMCID: PMC2934299 DOI: 10.1186/cc8749] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Becker R, Horn D, Knoll U, Stumm M, Wegner R, Peters H, Sarioglu N. First-Trimester Prenatal Diagnosis of Okihiro Syndrome. Fetal Diagn Ther 2010; 27:222-6. [DOI: 10.1159/000287252] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2009] [Accepted: 12/18/2009] [Indexed: 11/19/2022]
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Müller HC, Witzenrath M, Hellwig K, Tschernig T, Schmiedel A, Gutbier B, Schmeck B, Hippenstiel S, Peters H, Suttorp N, Rosseau S. Simvastatin attenuates ventilator-induced lung injury in mice. Pneumologie 2010. [DOI: 10.1055/s-0029-1247937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Slowinski T, Lieker I, Khadzhynov D, Sander M, Morgera S, Neumayer H, Peters H. Pilot study on a regional citrate anticoagulated continuous venovenous hemodiafiltration protocol with variable treatment dose. Crit Care 2010. [PMCID: PMC2934547 DOI: 10.1186/cc8750] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Brix M, Peters H, Lebeau J. Le chérubisme. ACTA ACUST UNITED AC 2009; 110:293-8. [DOI: 10.1016/j.stomax.2009.09.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2009] [Accepted: 06/22/2009] [Indexed: 10/20/2022]
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Knobloch J, Peters H, Jungck D, Muller K, Strauch J, Koch A. TNF -induced GM-CSF release from human airway smooth muscle cells depends on activation of an ET-1 autoregulatory positive feedback mechanism. Thorax 2009; 64:1044-52. [DOI: 10.1136/thx.2008.111047] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Bogner U, Badenhoop K, Peters H, Schmieg D, Mayr WR, Usadel KH, Schleusener H. Hla-Dr/Dq Gene Variation in Nongoitrous Autoimmune Thyroiditis at the Serological and Molecular Level. Autoimmunity 2009; 14:155-8. [PMID: 1363895 DOI: 10.3109/08916939209083135] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The etiology of autoimmune diseases is multifactorial with genetic factors being an important prerequisite. There are two clinical manifestations of autoimmune thyroiditis: the goitrous form (Hashimoto's thyroiditis) and the atrophic variant, which is characterized by hypothyroidism (primary myxoedema). Different genetic markers were assumed to be predisposing factors for the distinct clinical presentation. In the present study, we determined HLA A,B,C,DR,DQ alloantigens serologically and HLA-DQ by gene analysis in patients with nongoitrous autoimmune thyroiditis and randomly chosen controls. To verify the exact classifications, thyroid volume (median 5.85 ml) was measured by ultrasonography. HLA-DR5 was found in 16 of 36 (44%) patients with nongoitrous autoimmune thyroiditis and in only 26 of 175 controls (15%) (Pc = 0.0018). There was a tendency towards a lower frequency of HLA-DR7 with 6% positivity in patients vs. 29% in controls (Pc = 0.052). Regarding HLA-DQ, DQ7 was found in 17 of 35 patients (48%) vs. 21 of 98 controls (21%) (Pc = 0.028) (relative risk 3.5). No other association was found with HLA-A,B,C and HLA-DR and -DQ. Our data indicate that the genetic susceptibility to autoimmune nongoitrous thyroiditis is closely associated to HLA-DR5 and DQ7 and not distinct from goitrous disease. We conclude that factors other than genetic ones explain the different immunological and clinical manifestation of chronic lymphocytic thyroiditis.
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Scheiber C, Hirschfelder A, Gräbel S, Peters H, Olze H. Bilateral cochlear implantation in children with Noonan syndrome. Int J Pediatr Otorhinolaryngol 2009; 73:889-94. [PMID: 19303148 DOI: 10.1016/j.ijporl.2009.02.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2008] [Revised: 02/16/2009] [Accepted: 02/18/2009] [Indexed: 11/19/2022]
Abstract
Noonan syndrome is a mostly autosomal dominant inherited disorder, which can be accompanied by hearing disorders or deafness, coagulation disorders, combined heart defects and developmental disorders. We are reporting on two children with an established Noonan syndrome with a severe bilateral hearing loss of respectively 95 and 100 dB and proper findings in the CT/MRI of the petrous bone. After complete otologic and radiologic diagnostics, both children underwent bilateral cochlear implantation successfully. According to the authors' knowledge, this is the first time that cochlear implant therapy is discussed in patients with Noonan syndrome.
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Peters H. Hochkalorische parenterale Ernährung mit einer Komplettlösung in der postoperativen Phase. Transfus Med Hemother 2009. [DOI: 10.1159/000221307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Langer S, Peters H. Beeinflussung der Immunglobuline durch kombinierte perorale und parenterale Ernährung bei Kolitis, Ileitis und Rektumkarzinom. Transfus Med Hemother 2009. [DOI: 10.1159/000219787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Schubert R, Peters H. Das Magen- und Zwölffingerdarmgeschwür in seinen Beziehungen zum Altern. Dtsch Med Wochenschr 2009. [DOI: 10.1055/s-0028-1115087] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Jungck D, Peters H, Urban K, Strauch J, Knobloch J, Koch A. Die TNFα-induzierte Freisetzung von GM-CSF aus humanen Atemwegsmuskelzellen basiert auf der Aktivierung eines autoregulatorischen positiven Rückkopplungs-mechanismus der Endothelin-1 Expression – Effekt von Bosentan. Pneumologie 2009. [DOI: 10.1055/s-0029-1214058] [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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Jungck D, Peters H, Urban K, Strauch J, Knobloch J, Koch A. Die TNFα-induzierte Freisetzung von GM-CSF aus humanen Atemwegsmuskelzellen basiert auf der Aktivierung eines autoregulatorischen positiven Rückkopplungsmechanismus der Endothelin-1 Genexpression – Effekt von Bosentan. Pneumologie 2009. [DOI: 10.1055/s-0029-1202441] [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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Riad A, Westermann D, Van Linthout S, Mohr Z, Uyulmaz S, Becher PM, Rütten H, Wohlfart P, Peters H, Schultheiss HP, Tschöpe C. Enhancement of endothelial nitric oxide synthase production reverses vascular dysfunction and inflammation in the hindlimbs of a rat model of diabetes. Diabetologia 2008; 51:2325-32. [PMID: 18825362 DOI: 10.1007/s00125-008-1159-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2008] [Accepted: 07/21/2008] [Indexed: 01/28/2023]
Abstract
AIMS/HYPOTHESIS Reduced bioavailability of nitric oxide (NO) is a hallmark of diabetes mellitus-induced vascular complications. In the present study we investigated whether a pharmacological increase of endothelial NO synthase (eNOS) production can restore the impaired hindlimb flow in a rat model of severe diabetes. METHODS A model of diabetes mellitus was induced in male Sprague-Dawley rats by a single injection of streptozotozin. Rats were treated chronically with the eNOS transcription enhancer AVE3085 (10 mg [kg body weight](-1) day(-1); p.o.) or vehicle for 48 days and compared with controls. Endothelial function and arterial BP were investigated in vivo using an autoperfused hindlimb model and TIP-catheter measurement, respectively. Protein production of eNOS, total and phosphorylated vasodilator-stimulated phosphoprotein (VASP) were assessed in their quadriceps muscle tissue, whereas cyclic GMP (cGMP) concentrations were assessed in blood plasma. RNA levels of intracellular and vascular cell adhesion molecules (ICAM-1 and VCAM-1) were measured by real-time PCR. RESULTS Untreated diabetic rats showed significantly reduced quadriceps muscle contents of eNOS (-64%) and phosphorylated VASP (-26%) protein associated with impaired vascular function (maximum vasodilatation: -30%, p < 0.05) and enhanced production of ICAM-1 (+121%) and VCAM-1 (+156%). Chronic treatment with AVE3085 did not alter arterial BP or severe hyperglycaemia, but did lead to significantly increased production of eNOS (+95%), cGMP (+128%) and VASP phosphorylation (+65%) as well as to improved vascular function (+36%) associated with reduced production of ICAM-1 (-36%) and VCAM-1 (-58%). CONCLUSIONS/INTERPRETATION In a rat model of severe diabetes, pharmacological enhancement of impaired eNOS production and NO-cGMP signalling by AVE3085 restores altered hindlimb blood flow and prevents vascular inflammation.
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Bruno DL, Ganesamoorthy D, Schoumans J, Bankier A, Coman D, Delatycki M, Gardner RJM, Hunter M, James PA, Kannu P, McGillivray G, Pachter N, Peters H, Rieubland C, Savarirayan R, Scheffer IE, Sheffield L, Tan T, White SM, Yeung A, Bowman Z, Ngo C, Choy KW, Cacheux V, Wong L, Amor DJ, Slater HR. Detection of cryptic pathogenic copy number variations and constitutional loss of heterozygosity using high resolution SNP microarray analysis in 117 patients referred for cytogenetic analysis and impact on clinical practice. J Med Genet 2008; 46:123-31. [PMID: 19015223 DOI: 10.1136/jmg.2008.062604] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Microarray genome analysis is realising its promise for improving detection of genetic abnormalities in individuals with mental retardation and congenital abnormality. Copy number variations (CNVs) are now readily detectable using a variety of platforms and a major challenge is the distinction of pathogenic from ubiquitous, benign polymorphic CNVs. The aim of this study was to investigate replacement of time consuming, locus specific testing for specific microdeletion and microduplication syndromes with microarray analysis, which theoretically should detect all known syndromes with CNV aetiologies as well as new ones. METHODS Genome wide copy number analysis was performed on 117 patients using Affymetrix 250K microarrays. RESULTS 434 CNVs (195 losses and 239 gains) were found, including 18 pathogenic CNVs and 9 identified as "potentially pathogenic". Almost all pathogenic CNVs were larger than 500 kb, significantly larger than the median size of all CNVs detected. Segmental regions of loss of heterozygosity larger than 5 Mb were found in 5 patients. CONCLUSIONS Genome microarray analysis has improved diagnostic success in this group of patients. Several examples of recently discovered "new syndromes" were found suggesting they are more common than previously suspected and collectively are likely to be a major cause of mental retardation. The findings have several implications for clinical practice. The study revealed the potential to make genetic diagnoses that were not evident in the clinical presentation, with implications for pretest counselling and the consent process. The importance of contributing novel CNVs to high quality databases for genotype-phenotype analysis and review of guidelines for selection of individuals for microarray analysis is emphasised.
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Neßelhut T, Neßelhut J, Marx D, Matthes C, Lorenzen D, Peters H. Dendritische Zelltherapie bei metastasiertem Mammakarzinom. Geburtshilfe Frauenheilkd 2008. [DOI: 10.1055/s-0028-1089145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Peters H. Professor John Savill, vice principal and head of the College of Medicine and Veterinary Medicine, University of Edinburgh. Assoc Med J 2008. [DOI: 10.1136/bmj.39457.694757.ce] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Peters H. Professor Robert Lechler, vice principal, health, and dean, School of Medicine and Dental Institute at Guy’s, King’s, and St Thomas’ Hospitals, King’s College London. Assoc Med J 2008. [DOI: 10.1136/bmj.39462.484479.ce] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Peters H, Chlud K, Berner G, Wagener H, Staab R, Melchiar E, Zimmermann P. Zur perkutanen Kinetik von Ibuprofen*. AKTUEL RHEUMATOL 2008. [DOI: 10.1055/s-2008-1047929] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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75
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Vögtle-Junkert U, Peters H, Berner G, Wagener H. Spezielle Untersuchungen zur perkutanen Kinetik von Ibuprofen. AKTUEL RHEUMATOL 2008. [DOI: 10.1055/s-2008-1047428] [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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