نتایج جستجو برای: immunohistochemistry ihc
تعداد نتایج: 46518 فیلتر نتایج به سال:
BACKGROUND The U.S. Food and Drug Administration-approved method for detecting EML4-ALK rearrangement is fluorescence in situ hybridization (FISH); however, data supporting the use of immunohistochemistry (IHC) for that purpose are accumulating. Previous studies that compared FISH and IHC considered FISH the gold standard, but none compared data with the results of next-generation sequencing (N...
Two techniques performed on skin biopsy samples (ear notches), immunohistochemistry (IHC) and antigen-capture ELISA (AgELISA), were compared for detection of bovine viral diarrhea virus (BVDV) persistent infection (PI) in 559 Angus calves between the ages of 1 and 5 months. The calves also were tested for BVDV infection using virus isolation (VI) and reverse transcription (RT)-PCR on buffy coat...
BACKGROUND In esophageal adenocarcinoma (EAC), concordance and prognostic significance of human epidermal growth factor 2 (HER-2) protein overexpression and gene amplification are equivocal, which led us to reevaluate this by immunohistochemistry (IHC) and in situ hybridization. METHODS One hundred and fifty-four patients were included in a tissue micro array (TMA). HER-2 gene amplification w...
AIMS To investigate the effect of different fixation and processing regimens on the assessment of oestrogen receptor (ER) by immunohistochemistry (IHC). METHODS The ER results for 420 patients from seven different hospitals in which antigen retrieval and IHC were performed centrally were compared. The intensity of ER positivity was assessed semiquantitatively using the Quick score (range 0-7)...
Pancreatic neuroendocrine tumor (PanNET) is a neoplastic entity in which few prognostic factors are well-known. Here, we aimed to evaluate the prognostic significance of N-myc downstream-regulated gen-1 (NDRG-1), O6-methylguanine DNA methyltransferase (MGMT) and Pleckstrin homology-like domain family A member 3 (PHLDA-3) by immunohistochemistry (IHC) and methylation analysis in 92 patients with...
Background: Identifying Lynch syndrome (LS) in patients with colorectal cancer (CRC) and monitoring their relatives can increase the life expectancy of these patients. Objectives: The aim this study was to analyze cost-effectiveness 5 molecular testing strategies screen LS among newly diagnosed CRC conduct preventive surveillance first-degree relatives. Methods: A decision tree model designed i...
BACKGROUND Hereditary non-polyposis colorectal cancer (HNPCC) is a common hereditary cancer predisposing syndrome has molecular and clinicopathological features still have remained ambiguous within Iranian populations. We discuss in this article some molecular and clinicopathological features of the condition. METHODS The study was a descriptive retrospective and designed on 1659 colorectal c...
After a long period of therapeutic stagnation, significant breakthrough in the treatment adenocarcinomas gastroesophageal junction (GEJ) and stomach (GC) is now becoming evident with implementation Her2neu-based targeted therapies (trastuzumab trastuzumab-deruxtecan) use PDL1 checkpoint inhibitors (nivolumab, pembrolizumab).The required companion diagnostics regarding Her2neu overamplification ...
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