نتایج جستجو برای: peripheral blood specimens
تعداد نتایج: 885098 فیلتر نتایج به سال:
Background and Objectives: Antimicrobial susceptibility pattern of bacterial agents isolated from clinical samples in different parts of the country provides essential information regarding the selection of antibiotics for all patients living in different areas. Unfortunately data about the frequency and also antimicrobial resistance pattern of phathogen agents in clinical samples is rare in ...
Background and Objective: The pyocyanine pigment in Pseudomonas aeruginosa stimulates blood cells to secrete IL-2. IL-2 cytokine is an activator of cytotoxic T cells and natural killer cells. These cells destroy the target cells of patients with cancer. This study aimed to evaluate the effects of pyocyanine on the IL-2 secretion from peripheral blood mononuclear cells (PBMCs) in patients with b...
BACKGROUND Occult hepatitis C virus (HCV) infection is a new entity described by the presence of HCV-RNA in liver biopsy and/or peripheral blood mononuclear cell (PBMC) specimens, and undetectable levels or absence of HCV-RNA and in the absence or presence of anti HCV antibodies in plasma by current laboratory methods. OBJECTIVES To evaluate the detection of HCV-RNA in PBMC specimens of the l...
Background: The appendix is considered as part of the gut-associated lymphoid tissue; however, lymphocyte subsets in this tissue are not fully defined. Objective: To investigate and compare the function and phenotype of lymphocyte subsets in peripheral blood and appendix of patients with normal and inflamed appendix tissues. Methods: Peripheral blood samples and appendiceal mononuclear cells we...
Background and purpose: Some patients need to repeat certain tests. However, despite a peripheral vein catheter in the patients usually phlebotomy is done. This study examined the biochemical and hematological test results of the two methods of usual blood sampling and blood sampling through peripheral vein catheter. Materials and methods: A case-control study was carried out in 96 patients ...
AIMS To compare the nested polymerase chain reaction (PCR) assay for the detection of cytomegalovirus (CMV) DNA in peripheral blood leucocytes and plasma obtained from heparinised blood; to determine the efficiency of various DNA extraction methods to minimise inhibition of plasma PCR and their effect on the sensitivity of plasma PCR; to determine the inhibitory effect of heparin, dextran, and ...
BACKGROUND/AIMS Alpha-fetoprotein (AFP) mRNA-expressing cells are candidates for circulating tumor cells in hepatocellular carcinoma. We analyzed portal vein blood, peripheral blood, and peritoneal lavage samples to detect the presence of AFP mRNA-expressing cells, and explored their relationship with metastasis. METHODS We measured the AFP mRNA expression in 112 sets of portal vein and perip...
Twenty-one out of 32 apparently healthy blood donors aged 21 to 65 years yielded positive complement fixation tests with a cytomegalovirus antigen, at titres ranging from 1:8 to 1:64. Virus was present in leucocyte cultures of fresh peripheral blood of two seropositive subjects from a total of 35 donors examined. Plasma and 48-hour stored blood specimens failed to disclose virus in culture. Vir...
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