Acute myeloid leukemia represents the most prevalent type of acute leukemia in adults. Mutations in the tumor protein (TP53) gene have been found in more than half of all human cancers. This study was done to investigate the relationship between TP53 gene expression and the appearance and progression of acute myeloid leukemia in Iraq. This study included 100 subjects, divided into 60 patients suffering from pre-diagnostic acute myeloid leukemia and 40 healthy individuals. The difference in TP53 gene expression between acute myeloid leukemia patients and healthy individuals has been investigated, and the gene expression of TP53 has been measured after extraction of total RNA at concentrations (15–83 ng/µl) and purity (1.76-2). Gene expression has involved calculating the double ΔCt value to assess TP53 expression in the presence of the GAPDH gene as a reference gene. Results showed that gene expression folding (2-∆∆Ct) reflects significant differences in TP53 gene expression. There was overexpression (up-regulation) of the TP53 gene in acute myeloid leukemia patients (mean ± SD: 2.29±2.12) compared with controls (1 ± 0.43), with a p=0.04.
Summary:
OBJECTIVE Many associations have been found between specific HLA antigens and increased susceptibility to various diseases . So we tried to associate class I and class II antigens with acute lymphoblastic leukemia . We also demonstrate the presence of antibodies in serum of acute lymphoblastic leukemic patients against HLA class I.
DESIGN: Prospective study.
SETTING: Tissue typing and histocompatibility center at Al- Karamah Teaching Hospital. PATIENTS AND METHOD: 70 acute lymphoblastic leukemia patients from pediatric hospitals. HLA ( human leukocyte antigens) typing done for them by serological method and cross matching and blood grouping were also done for them.
RESULTS: there was significant difference between pa
Background :Chronic lymphocytic leukemia (CLL) is a low-grade B-lineage lymphoid malignancy. Both Ki-67 which is a large nuclear protein associated with cell proliferation and Bcl-2 which is an anti-apoptotic protein which is associated with dysregulation of the intrinsic apoptotic pathway , were thoroughly investigated in many cancer patients particularly in hemopoietic malignancies .
Patients, materials and methods: This retrospective study was conducted from November 2009 to May 2010 , on fifty formaline fixed paraffin embedded blocks of CLL cases retrieved from Medical City Teaching Hospital ; their age range was 39-75 years along with twenty control cases with benign r
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Most of the patient's ages
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... Show MoreThe study aimed to assess the expression of CD49d and CD26 in newly diagnosed CLL patients and find their correlation with clinical Binet stage, and other clinical parameters. This study was conducted on 51 newly diagnosed CLL patients based on lymphocyte count > 5×109/L and immunophenotyping. The expression of CD49d, and CD26 were investigated using eight-color flow cytometer. The expression of CD49d and CD26 were detected in 56.9 %, 68.8 % of CLL patients, respectively. The correlation between CD49d expression and CD26 expression was statistically significant (p < 0.001) with high concordance rate between them. The positive expression of both CD49d and CD26 had statistically significant association with clinical Binet staging (p < 0.001,
... Show MorePseudomonas aeruginosa is an opportunistic pathogen responsible for serious infections. At least three different exopolysaccharides, alginate, polysaccharide synthesis locus (Psl), and pellicle exopolysaccharide (Pel) make up the biofilm matrix in P. aeruginosa . The effect of temperature on the biofilm formation and gene expression was examined by microtiter plate and real-time quantitative polymerase chain reaction (qRT-PCR). To be able to determine the effect of temperature on biofilm formation and gene expression of P. aeruginosa, 303 clinical and environmental samples were collected. Pseudomonas aeruginosa was isolated from 61 (20.1%) and 48 (15.8%) of the clinical and e
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