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Septins are GTP-binding proteins that assemble into homo- and hetero-oligomers and filaments. Although they have key roles in various cellular processes, little is known concerning the structure of septin subunits or the organization and polarity of septin complexes. Here we present the structures of the human SEPT2 G domain and the heterotrimeric human(More)
Formins are involved in a variety of cellular processes that require the remodelling of the cytoskeleton. They contain formin homology domains FH1 and FH2, which initiate actin assembly. The Diaphanous-related formins form a subgroup that is characterized by an amino-terminal Rho GTPase-binding domain (GBD) and an FH3 domain, which bind somehow to the(More)
Ras of complex proteins (Roc) belongs to the superfamily of Ras-related small G-proteins that always occurs in tandem with the C-terminal of Roc (COR) domain. This Roc-COR tandem is found in the bacterial and eukaryotic world. Its most prominent member is the leucine-rich repeat kinase LRRK2, which is mutated and activated in Parkinson patients. Here, we(More)
OBJECTIVES This study assessed the rate of periprocedural embolic ischemic brain injury during transapical aortic valve replacement in 25 consecutive patients. BACKGROUND Transcatheter aortic valve implantation is rapidly being established as a new therapeutic approach for aortic valve stenosis. Although initial clinical results are promising, it is(More)
Impairment of splanchnic and peripheral tissue perfusion during cardiopulmonary bypass (CPB) may be responsible for endotoxin-mediated systemic inflammation and acute phase responses. We examined the effects of dopexamine on hemodynamic parameters, creatinine clearance, systemic and splanchnic oxygenation, gastric mucosal pH (pHi), and mixed and hepatic(More)
BACKGROUND Cell grafting has emerged as a novel approach to treat heart diseases refractory to conventional therapy. We hypothesize that survival and functional and electrical integration of grafts may be improved by engineering cardiac tissue constructs in vitro before grafting. METHODS AND RESULTS Engineered heart tissue (EHT) was reconstituted by(More)
INTRODUCTION Clinical variability associated with the common 22q11.2 microdeletion is well known, and has led to a broad application of FISH diagnostics with probes for loci TUPLE1 or D22S75 (N25), although, rarely reported atypical deletions associated with the same phenotypic spectrum would not be discovered by these probes. As most types of 22q11.2(More)
cAMP is an evolutionary conserved, prototypic second messenger regulating numerous cellular functions. In mammals, cAMP is synthesized by one of 10 homologous adenylyl cyclases (ACs): nine transmembrane enzymes and one soluble AC (sAC). Among these, only sAC is directly activated by bicarbonate (HCO3(-)); it thereby serves as a cellular sensor for HCO3(-),(More)
Univ.-Prof. Dr. med. Dr. h. c. G. Breithardt (&) Medizinische Klinik und Poliklinik C (Kardiologie und Angiologie) Universitätsklinikum Münster Albert-Schweitzer-Str. 33 48149 Münster, Germany Tel.: +49-251/834-7617 Fax: +49-251/834-7864 A.A. Schmaltz (Vorsitzender der Ad-hoc-Gruppe Leitlinien) U. Bauer H. Baumgartner R. Cesnjevar F. de Haan C. Franke H.(More)
Background: Recent efforts to develop procedures for fetoscopic fetal cardiac interventions have been prompted by the development of severe secondary damage to the fetal heart due to semilunar valvar obstructions and the poor outcome of therapy-refractory fetal arrhythmias. The purpose of our manuscript is to analyze and share our experience with the(More)