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Heart diseases are the most common causes of morbidity and death in humans. Using cardiac-specific RNAi-silencing in Drosophila, we knocked down 7061 evolutionarily conserved genes under conditions of stress. We present a first global roadmap of pathways potentially playing conserved roles in the cardiovascular system. One critical pathway identified was(More)
Drosophila neuroblasts (NBs) have emerged as a model for stem cell biology that is ideal for genetic analysis but is limited by the lack of cell-type-specific gene expression data. Here, we describe a method for isolating large numbers of pure NBs and differentiating neurons that retain both cell-cycle and lineage characteristics. We determine(More)
We compared type I collagen degradation using serum cross-linking C-terminal telopeptide (ICTP) in 18 patients with rapidly destructive osteoarthrosis and in 20 patients with slowly progressive osteoarthrosis of the hip. The diagnosis was established by clinical examination and radiographic evaluation. Total hip arthroplasty was performed in all patients.(More)
The aim of this study was to evaluate bone metabolism in patients with bone marrow edema syndrome of the hip. In 37 consecutive patients undergoing core decompression of the femoral head, biochemical markers of bone metabolism were measured in aspirates from cancellous bone and in samples obtained simultaneously from peripheral blood. The diagnosis was made(More)
A replication fork barrier (RFB) at the 3' end of eukaryotic ribosomal RNA genes blocks bidirectional fork progression and limits DNA replication to the same direction as transcription. We have reproduced the RFB in vitro in HeLa cell extracts using 3' terminal murine rDNA fused to an SV40 origin-based vector. The RFB is polar and modularly organized,(More)
There is controversy whether bone marrow edema syndrome represents a distinct transient disease or reflects an early reversible phase of spontaneous osteonecrosis of the hip. Hypofibrinolysis on the basis of elevated plasma levels of plasminogen activator inhibitor or lipoprotein(a) or both has been reported to favor the development of bone marrow edema(More)
Elegant tools are available for the genetic analysis of neural stem cell lineages in Drosophila, but a methodology for purifying stem cells and their differentiated progeny for transcriptome analysis is currently missing. Previous attempts to overcome this problem either involved using RNA isolated from whole larval brain tissue or co-transcriptional in(More)
PURPOSE We report on 24 cases of transient bone marrow edema syndrome in 18 patients who underwent core decompression of the knee. METHODS Diagnosis was made with the use of radiographs, magnetic resonance imaging (MRI), and core biopsy testing. Arthroscopic surgery and core decompression were carried out in all patients, and MRI was performed again, 5(More)
The developing Drosophila brain is a well-studied model system for neurogenesis and stem cell biology. In the Drosophila central brain, around 200 neural stem cells called neuroblasts undergo repeated rounds of asymmetric cell division. These divisions typically generate a larger self-renewing neuroblast and a smaller ganglion mother cell that undergoes one(More)
Painful pathological fractures of the femoral neck and the subtrochanteric region of the femur are reported in two women originating from India. After exclusion of renal or intestinal causes, laboratory data on bone metabolism, scintigraphic and radiographic examinations were characteristic for the presence of secondary hyperparathyroidism. Based on vitamin(More)