Abstract
To find possible factors correlated with combined loss of heterozygosity (LOH) of 1p and 19q. The status of 1p and 19q of 138 glioma specimen from January 2009 to December 2009 was evaluated by Fluorescence in situ hybridization (FISH) method, and the frequencies of combining LOH of 1p/19q were compared between different pathologies, brain sub-regions, genders and ages. The frequencies of combined LOH of 1p and 19q of oligodendroglial (81.3%) and oligo astrocytic tumors (55.8%) were significantly higher than that of astrocytic tumor (22.2%) (P < 0.01), and the frequency of oligodendroglial tumor was significantly higher than that of oligo astrocytic tumor (P < 0.05). The frequency of combining LOH of 1p and 19q in frontal lobe (61.8%) was higher than that in temporal (31.8%) and insular lobes (34.6%) (P < 0.05). Combining LOH of 1p and 19q has significant correlation with the pathologies and brain sub-regions.
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