نتایج جستجو برای: paraffin embedded tissue blocks
تعداد نتایج: 1085470 فیلتر نتایج به سال:
Background and Objective: Tuberculosis is still a major health problem, involving about 1/3 of the world ́s population. Diagnosis is difficult when we only use Ziehl-Neelson staining. Many cases may be missed. A more rapid and sensitive diagnostic method is necessary. PCR may be helpful. The aim of this study is to compare PCR, Zieh-Neelsen staining and histopathologic findings in diagnosis of t...
This study aimed to extract the paraffin component from paraffin-embedded oral cancer tissue spectra using three multivariate analysis (MVA) methods; Independent Component Analysis (ICA), Partial Least Squares (PLS) and Independent Component - Partial Least Square (IC-PLS). The estimated paraffin components were used for removing the contribution of paraffin from the tissue spectra. These three...
Background and purpose: BCL-2 marker has an important role in mechanisms of apoptosis and dysplastic changes, malignancies, and the pathogenicity mechanisms in oral lichen planus (OLP). Current study aimed at investigating the expression levels of BCL-2 in epithelial and connective tissue adjacent in oral lichen planus. Materials and methods: In this case-control study, investigation of BCL-2 ...
In this cross-sectional study, mycobacteria specimens from 189 tuberculosis (TB) patients living in an urban area in Brazil were characterised from 2008-2010 using phenotypic and molecular speciation methods (pncA gene and oxyR pseudogene analysis). Of these samples, 174 isolates simultaneously grew on Löwenstein-Jensen (LJ) and Stonebrink (SB)-containing media and presented phenotypic and mole...
Analysis of RNA isolated from fixed and paraffin-embedded tissues is widely used in biomedical research and molecular pathological diagnostics. We have performed a comprehensive and systematic investigation of the impact of factors in the pre-analytical workflow, such as different fixatives, fixation time, RNA extraction method and storage of tissues in paraffin blocks, on several downstream re...
This study aimed to investigate the presence of human papillomavirus and Epstein-Barr virus in male lichen sclerosus patients. We extracted DNA from formalin-fixed paraffin-embedded foreskin tissue blocks of 47 male LS patients and 30 healthy men and performed real-time PCR test to detect HPV and EBV. None of the 47 LS patients and 30 healthy men had detectable HPV infection. EBV was detected i...
Aim: Androgens are hormones that essential for the differentiation and development of male genital organs, preserving their structural features maintaining functions. These exert effects on target tissues mainly through androgen receptors (AR). The aim this study was to determine AR immunoexpression pattern in mice. Materials Methods: A total 6 BALB/c mice were anesthetized with ether, tissues,...
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