141 research outputs found
Deletion 18p11.32p11.31 in a Child with Global Developmental Delay and Atypical, Drug-Resistant Absence Seizures
Extrachromosomal genes: a powerful tool in gene targeting approaches
Several studies, some of which have been updated during the recent workshop entitled Genome Medicine: Gene Therapy for the Millennium (Rome, 30 September-3 October 2001), have highlighted the usefulness of extrachromosomal or episomal genes in gene targeting strategies. Due to the selectable nature of antibiotic resistance and reporter genes, targeted correction of mutated versions of these extrachromosomal genes allows an accurate quantification of correction frequency. In addition, these model systems facilitate and speed up the optimization of critical parameters for the successful application of gene targeting approaches. In fact, type of cell line, gene delivery system, molar ratio of episomal target/therapeutic constructs, nature and design of therapeutic complexes and different recombinative proteins may be critical for the actual feasibility of each method. Although virus-based approaches are now being investigated as well, this article is focusing on the targeted correction of extrachromosomal genes by the use of small DNA fragments (SDF), chimeric RNA/DNA oligonucleotides (RDO) and triplex-forming oligonucleotides (TFO)
Different approaches in the molecular analysis of the SHOX gene dysfunctions
Deficit of the short stature homeobox containing gene (SHOX) accounts for 2.15% of cases of idiopathic short stature (ISS) and 50-100% of cases of Leri-Weill dyschondrosteosis (LWD). It has been demonstrated that patients with SHOX deficit show a good response to treatment with GH. Thus, the early identification of SHOX alterations is a crucial point in order to choose the best treatment for ISS and LWD patients. In this study, we analyze the most commonly used molecular techniques for the detection of SHOX gene alterations. multiple ligation-dependent probe amplification analysis appears to represent the gold standard for the detection of deletion involving the SHOX gene or the enhancer region, being able to show both alterations in a single assay
[Analysis of the nonhistone chromosomal proteins during ontogenesis. I. NHCP of the leg muscle in Gallus gallus].
Complex translocation involving Ph chromosome in a patient with typical chronic myelogenous leukemia.
[Chromosomal proteins during ontogenesis of Gallus gallus. III. Non-histone proteins in the heart].
De novo 9q33 microdeletion identified by array-comparative genomic hybridization in a foetus with sex reversal and congenital heart defects.
[No abstract available
16p13.3 microduplication syndrome: A new characteristic case without intellectual disability
A Mosaic Ring Chromosome 21 in a Patient with Mild Intellectual Disability not Evidenced by Array-Cgh
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