نتایج جستجو برای: سیگنال pcg

تعداد نتایج: 7011  

2017
María T García-Antón Juan J Salazar Rosa de Hoz Blanca Rojas Ana I Ramírez Alberto Triviño José-Daniel Aroca-Aguilar Julián García-Feijoo Julio Escribano José M Ramírez

Mutations in the CYP1B1 gene are currently the main known genetic cause of primary congenital glaucoma (PCG), a leading cause of blindness in children. Here, we analyze for the first time the CYP1B1 genotype activity and the microscopic and clinical phenotypes in human PCG. Surgical pieces from trabeculectomy from patients with PCG (n = 5) and sclerocorneal rims (n = 3) from cadaver donors were...

2012
Nicole E. Follmer Ajazul H. Wani Nicole J. Francis

Epigenetic regulation of gene expression, including by Polycomb Group (PcG) proteins, may depend on heritable chromatin states, but how these states can be propagated through mitosis is unclear. Using immunofluorescence and biochemical fractionation, we find PcG proteins associated with mitotic chromosomes in Drosophila S2 cells. Genome-wide sequencing of chromatin immunoprecipitations (ChIP-SE...

2008
Taeyoung PARK

Among the computationally intensive methods for fitting complex multilevel models, the Gibbs sampler is especially popular owing to its simplicity and power to effectively generate samples from a high-dimensional probability distribution. The Gibbs sampler, however, is often justifiably criticized for its sometimes slow convergence, especially when it is used to fit highly structured complex mo...

Journal: :Mechanisms of Development 2015
Divya Tej Sowpati Senthilkumar Ramamoorthy Rakesh K. Mishra

Polycomb group (PcG) proteins regulate and maintain expression pattern of genes set early during development. Although originally isolated as regulators of homeotic genes, PcG members play a key role in epigenetic mechanisms that maintain the expression state of a large number of genes. All members of the two polycomb repressive complexes (PRC1 and PRC2) are conserved during evolution and while...

2011
Khaled K. Abu-Amero Essam A. Osman Ahmed Mousa Joshua Wheeler Benjamin Whigham R. Rand Allingham Michael A. Hauser Saleh A. Al-Obeidan

PURPOSE Primary congenital glaucoma (PCG) is a severe form of glaucoma that presents early in life. PCG is a clinical and genetic entity that is distinct from juvenile forms of glaucoma. Inheritance is usually autosomal recessive and therefore the disease might be more common in societies where consanguinity is high. We studied the prevalence of cytochrome P450, family 1, subfamily B, polypepti...

Journal: :Cell cycle 2006
Olga P Berezovska Anna B Glinskii Zhijian Yang Xiao-Ming Li Robert M Hoffman Gennadi V Glinsky

The Polycomb group (PcG) gene BMI1 is required for the proliferation and self-renewal of normal and leukemic stem cells. Overexpression of Bmi1 oncogene causes neoplastic transformation of lymphocytes and plays essential role in pathogenesis of myeloid leukemia. Another PcG protein, Ezh2, was implicated in metastatic prostate and breast cancers, suggesting that PcG pathway activation is relevan...

2013
Burhan Ergen

This paper focuses on the denoising of phonocardiogram (PCG) signals by means of discrete wavelet transform (DWT) using different wavelets and noise level estimation methods. The signal obtained by denoising from PCG signal contaminated white noise and the original PCG signal is compared to determine the appropriate parameters for denoising. The comparison is evaluated in terms of signal to noi...

Journal: :Frontiers in Cell and Developmental Biology 2021

Polycomb group (PcG) and trithorax (trxG) proteins are evolutionary conserved factors that contribute to cell fate determination maintenance of cellular identities during development multicellular organisms. The PcG maintains heritable patterns gene silencing while trxG acts as anti-silencing by conserving activation type specific genes. Genetic molecular analysis has revealed extensive details...

This paper is concerned with a synthesis study of the fast Fourier transform (FFT), the short time Fourier transform (STFT and the Wigner distribution (WD) in analysing the phonocardiogram signal (PCG) or heart cardiac sounds.     The FFT (Fast Fourier Transform) can provide a basic understanding of the frequency contents of the heart sounds. The STFT is obtained by calculating the Fourier tran...

Journal: :Sustainability 2023

With respect to a two-echelon supply chain comprised of retailer and capital-constrained supplier, this paper investigates the effect guarantee on accounts receivable financing with consideration retailer’s default risk three scenarios: no guarantee, third-party offers partial credit (PCG), management company (SCMC) repurchase guarantee. By Stackelberg game model, study finds that: when offer P...

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