Hans Haubruck

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We investigated the presence of autoantibodies to baculovirus-expressed human recombinant 65- and 67-kD isoforms of glutamate decarboxylase (GAD65 and GAD67) in insulin-dependent diabetes mellitus (IDDM). In the immunoprecipitation test using [35S]methionine-labeled GADs antibodies to GAD65 were detected in 13/15 (87%) islet cell antibody (ICA)-positive and(More)
The effects of emopamil on postischemic energy metabolism and electroencephalographic (EEG) recovery were investigated in the isolated rat brain perfused at either constant pressure or, alternatively, at constant flow rate. Flow rate and perfusion pressure were monitored continuously. The brains were perfused with a fluorocarbon emulsion for 30 min, and(More)
The cDNAs coding for human full-length and soluble thyroid peroxidase (TPO) were constructed, cloned into a baculovirus transfer vector and used for infection of Spodoptera frugiperda (Sf9) cells. The soluble TPO lacking 87 amino acids of the C-terminal transmembrane and intracisternal domains was designed as a fusion protein with a histidine-hexapeptide as(More)
Autoantibodies (AAb) to glutamate decarboxylase (GAD) occur with a high prevalence in sera of newly diagnosed type I (insulin-dependent) diabetic patients. The aim of this study was to establish a GAD-AAb radioimmunoassay using 125I-labelled GAD65 and to evaluate this assay in a cross-sectional study with newly diagnosed type I diabetic patients (diabetes(More)
The enzyme glutamate decarboxylase (GAD) is considered one of the major Beta cell antigens in Type 1 diabetes mellitus. The GAD autoantibody (GAD-AAb) prevalence in newly diagnosed Type 1 diabetic patients has been described up to 80%, depending on the detection method used. The aim of this study was to evaluate a simple, specific, and sensitive(More)
Recombinant production of human autoantigens and new assay methodologies have created new opportunities for the detection of autoantibodies in autoimmune disease situations. However, the standardization of test results remains unsatisfactory which can be traced to supply and batch variation problems of the patient sera used as standard materials. Human(More)
The reliability and accuracy of ELISAs for the detection of circulating ANA in children with rheumatic diseases has recently been questioned. In this study we evaluated an allegedly superior ELISA method using recombinant antigens in a paediatric population with various rheumatic conditions and compared it to a conventional Hep-2 IFA assay. Sera from 123(More)
In vitro incubation of mouse epidermis homogenate with arachidonJc acid shows the production of small amounts of 8-HETE and 12-HETE by 8and 12-1ipoxygenase, r~tively. To investigate the tissue levels of monohyckoxylated products of linoleic acid (18:2) and arachidonic acid (20:4) in normal, hyperplastic and neoplastic mouse epidermis an assay was developed(More)
Mutational changes in the p53 tumor suppressor gene are the most frequent genetic alterations in human malignant tumors. Studies have shown a correlation of p53 expression in breast cancer with tumor prognosis. In contrast to mutational activation of ras and GSP in thyroid tumors, little is known about the role of p53 in thyroid tumor development. Therefore(More)
cDNAs coding for the full-length human 65 and 67 kDa glutamic acid decarboxylases (GAD65 and GAD67) were amplified from pancreas and hippocampus cDNA libraries by polymerase chain reaction, respectively. Both cDNAs were inserted into a baculovirus vector which mediated highly efficient expression of the human GAD65 and GAD67 with histidine-hexapeptides as(More)
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