The mapping of DA and visual pathologies demonstrate the pivot role of retinal DA in mediating visual functions and also indicate the “missing links”
in our understanding of the mechanisms underlying these BI 6727 in vitro relationships. (C) 2007 Elsevier Ltd. All rights reserved.”
“Background: Dysregulation of imprinted genes, which are expressed in a parent-of-origin-specific manner, plays an important role in various human diseases, such as cancer and behavioral disorder. To date, however, fewer than 100 imprinted genes have been identified in the human genome. The recent availability of high-throughput technology makes it possible to have large-scale prediction of imprinted genes. Here we propose a Bayesian model (dsPIG) to predict imprinted genes on the basis of allelic expression observed in mRNA-Seq data of independent human tissues.\n\nResults: Our model (dsPIG) was capable of identifying imprinted genes with high sensitivity and specificity and a low false discovery rate when
the number of sequenced tissue samples was fairly large, according to simulations. By applying dsPIG to the mRNA-Seq data, we predicted 94 imprinted genes in 20 cerebellum samples and 57 imprinted genes in 9 diverse tissue samples with expected low false discovery rates. We also assessed dsPIG using previously validated imprinted and non-imprinted genes. With simulations, we further analyzed how imbalanced www.selleckchem.com/products/Erlotinib-Hydrochloride.html allelic expression of non-imprinted genes or different minor allele frequencies affected the predictions of dsPIG. Interestingly, we found that, among biallelically expressed genes, at least 18 genes expressed significantly more transcripts from one allele than the other among different individuals and tissues.\n\nConclusion: With the prevalence of the mRNA-Seq technology, dsPIG has become a useful tool for analysis of allelic expression and large-scale prediction of imprinted genes. For ease of use, we have set up a web service NU7441 inhibitor and also provided an R package for dsPIG at http://www.shoudanliang.com/dsPIG/.”
“PURPOSE. To report on a patient with retinal astrocytic hamartoma, who developed a choroidal neovascularization
(CNV), effectively treated by intravitreal ranibizumab injections.\n\nMETHODS. A 74-year-old woman who, 12 years before, had been diagnosed with a yellow-gray lesion in the left eye (OS) presented in our department for OS decreased vision of recent onset.\n\nRESULTS. Upon a complete ophthalmologic examination including ultrasonography, fluorescein angiography (FA), and spectral domain optical coherence tomography (SD-OCT), the patient was diagnosed with retinal astrocytic hamartoma and coincident CNV on its foveal border Six months after 3 monthly intravitreal ranibizumab injections, FA and OCT revealed the CNV closure and absence of intraretinal and subretinal fluid on the fovea] border of the retinal astrocytic hamartoma.\n\nCONCLUSIONS. Associations between retinal astrocytic hamartoma and CNV have not been previously reported.