Jürgen Harmut Fischer

Learn More
A simple method for orthotopic liver transplantation in the rat is described in detail. A cuff technique was applied to all anastomoses of the supra- and infrahepatic venae cavae and the portal vein. It simplified and shortened the implantation of the graft as well as eliminating the need for microvascular suture technique. In the last series of 20(More)
AIMS In clinical studies on cell therapy for acute myocardial infarction (MI), cells are usually applied by intracoronary infusion with balloon (IC/B). To test the utility of balloon occlusion, mononuclear bone marrow cell (MNC) retention after intracoronary infusion without balloon (IC/noB) was compared with IC/B and intramyocardial (IM) injection. (More)
The authors recently reported the increased oral clearance of labetalol in pregnant women. To elucidate the mechanism of the elevated oral clearance, it was hypothesized that female hormones, at the high concentrations attainable during pregnancy, enhance hepatic metabolism of labetalol. Labetalol glucuronidation, which is the major elimination pathway of(More)
The changes in the status of the adenylic acid-creatine phosphate system and in glycogen, glucose, and lactate were investigated in canine kidneys during preservation in anaerobic and aerobic ischemia at normo- and hypothermia. For anaerobic ischemia, the kidneys were stored without additional measures; for aerobic ischemia, the ischemic kidneys were(More)
PURPOSE Acute ischemic injury is a strong inductor of cardiac remodelling, resulting in structural changes of the extracellular matrix (ECM) and basement membrane (BM). In a large animal model of ischemia-reperfusion (I/R) we investigated the post-ischemic liberation of the collagen-IV-fragments Tumstatin (TUM; 28 kDa-fragment of collagen-IV-alpha-3),(More)
BACKGROUND Although renal tubular epithelium has a great capacity for repair it has been suggested that the administration of mesenchymal stem cells may accelerate the recovery following severe ischemic injury. METHODS Here we analyzed the survival rate and organ distribution of transplanted mesenchymal stem cells as well as their contribution to kidney(More)
Energy-producing pathways, adenine nucleotide levels, oxidative stress response and Ca(2+) homeostasis were investigated in cybrid cells incorporating two pathogenic mitochondrial DNA point mutations, 3243A>G and 3302A>G in tRNA(Leu(UUR)), as well as Rho(0) cells and compared to their parental 143B osteosarcoma cell line. All cells suffering from a severe(More)
We have used HeLa cells without mitochondrial DNA (rho0-cells) and transient rho0-phenocopies, obtained from wild-type cells by short-term treatment with ethidium bromide, to analyze how the absence of a functional mitochondrial respiratory chain slows down proliferation. We ruled out an energetic problem (ATP/ADP content) as well as defective synthesis of(More)