Publications by authors named "Sirma S"

Background: Tranexamic acid (TXA) has been shown to reduce intraoperative bleeding and the need for post-operative allogenic blood transfusion requirement in surgery. In our randomized controlled study, we aimed to evaluate the effect of pre-operative 15 mg/kg intravenous TXA on total blood loss (TBL), hidden blood loss (HBL), and transfusion requirement in elderly patient group with intertrochanteric femoral fracture (ITFF) and treated with proximal femoral nailing (PFN).

Methods: Patients diagnosed with ITFFs (AO types 31-A1 and 31-A2) and treated using closed reduction and PFN was divided into two groups in our prospective randomized study.

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The aim of the present study is to evaluate the frequency of C609T polymorphism in the NQO1 (NAD(P)H) quinon oxydoreductase) gene and its relation to cytogenetic abnormalities in patients with Myelodysplastic Syndrome (MDS). The study group consisted of 80 patients MDS with 13 of them in the pediatric age group. The frequency of the NQO1 gene polymorphism was compared with a healthy control group involving 423 individuals.

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Background: This study compared the effectiveness of joint mobilization combined with stretching exercises (JM&Str) vs steroid injection (SI) in the treatment of plantar fasciitis (PF).

Methods: A total of 43 patients (mean age, 45.5 ± 8.

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Introduction: Different mechanisms for the expression of pendrin which is an apical iodide transporter have been reported in nodular thyroid tissues compared to normal thyroid. The aim of the present study was to determine the alterations of pendrin expression in nodular and surrounding non-nodular thyroid tissues and clarify the role of pendrin in the functional behaviour of nodular lesions.

Material And Methods: Twenty-six nodular and paired non-nodular normal thyroid tissues were collected at the same centre.

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Background: The fibrotic plaques of Peyronie/s disease and other localized fibrotic conditions have been considered to be the result of an abnormal wound healing process. The potential role of regulatory disorders of apoptosis in abnormal wound healing may also play a role in the development of Peyronie's disease.

Objectives: To examine the phenomenon of apoptosis in Peyronie's disease, authors quantified differential levels of gene expression of apoptotic proteins, Fas, Fas Ligand, Bcl-2, p53, Caspase 3 and 8 in Peyronie's plaque and tunica albuginea.

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One application of next-generation sequencing (NGS) is the targeted resequencing of interested genes which has not been used in viral integration site analysis of gene therapy applications. Here, we combined targeted sequence capture array and next generation sequencing to address the whole genome profiling of viral integration sites. Human 293T and K562 cells were transduced with a HIV-1 derived vector.

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Background & Aims: The exocrine portion of the pancreas functions in digestion and preserves pancreatic homeostasis. Learning how this tissue forms during embryogenesis could improve our understanding of human pancreatic diseases. Expression of the homeobox gene Prox1 in the exocrine pancreas changes throughout development in mice.

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We aimed to compare the cytogenetic and molecular analyses in the assessment of imatinib mesylate response in patients suffering the chronic phase of chronic myelocytic leukemia who were refractory to alpha-interferon treatment. A total of 117 patients in the chronic phase of chronic myelocytic leukemia were included. The patients were treated with 400 mg/day imatinib mesylate.

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Monitoring minimal residual disease has become increasingly important in clinical practice of ALL management. Break-point fusion regions of leukaemia related chromosomal aberrations and rearranged immunoglobulin (Ig) and T cell-receptor (TCR) genes, which can be detected by polymerase chain reaction (PCR), are used as leukaemia specific markers in genetic studies of MRD. A total of 31 consecutive patients with newly diagnosed ALL were screened for eligibility criteria.

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The diagnosis of leukemia-specific mRNAs by polymerase chain reaction (PCR) and reverse transcription-PCR (RT-PCR) require well-known positive standard controls. In general, the positive controls are obtained from cell lines and leukemia patients who have been diagnosed at the molecular level by RT-PCR. These are expensive and restricted sources for standard positive controls.

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The gene encoding the transcriptional co-activator MN1 is the target of the reciprocal chromosome translocation (12;22)(p13;q12) in some patients with acute myeloid leukemia (AML). In addition, expression array analysis showed that MN1 was overexpressed in AML specified by inv(16), in some AML overexpressing ecotropic viral integration 1 site (EVI1) and in some AML without karyotypic abnormalities. Here we describe that mice receiving transplants of bone marrow (BM) overexpressing MN1 rapidly developed myeloproliferative disease (MPD).

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The human ETS family gene TEL2/ETV7 is highly homologous to TEL1/ETV6, a frequent target of chromosome translocations in human leukemia and specific solid tumors. Here we report that TEL2 augments the proliferation and survival of normal mouse B cells and dramatically accelerates lymphoma development in Emu-Myc transgenic mice. Nonetheless, inactivation of the p53 pathway was a hallmark of all TEL2/Emu-Myc lymphomas, indicating that TEL2 expression alone is insufficient to bypass this apoptotic checkpoint.

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Background: NAD(P)H:quinone oxidoreductase1 (NQO1) is a two-electron reductase that detoxifies quinones derived from the oxidation of phenolic metabolites of benzene. Exposure to benzene metabolites increases the risk of hematotoxicity and leukemia. NQO1 enzyme activity protects the cells against metabolites of benzene.

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Among several newly identified oncogenes, dek and af4 are attractive targets for researchers interested with leukemia. In this study quantitative Real-Time RT-PCR technique was used to define alterations in expression of dek and af4 genes associated with acute promyelocytic leukaemia (APL) t (15; 17). RNA samples obtained from bone marrow aspirates of fourteen APL patients, cDNA portions were labelled with Syber Green 1 dye and LightCycler analysis have been performed.

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The presence of the t(12,21) is associated with good response to therapy in acute lymphoblastic leukemia (ALL) but molecular background of this pathology is not clear. FLI1 gene plays important roles in normal regulation of myeloid hematopoiesis and leukemogenesis. The chemokine receptor CXCR4 gene may play a role in the homing of hematopoietic stem cells.

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All-trans retinoic acid (ATRA) treatment of the acute promyelocytic leukemia (APL) have subsequently resulted in cell apoptosis, but the molecular mechanism of this effect remains elusive. In order to understand a possible involvement of genes regulating apoptotic signal pathways, expression levels of bcl2, bax, dapk1, myc, bad, wt1, and mcl genes were analyzed during ATRA treatment in five APL patients with t (15;17) using Real- time PCR (LightCycler). Two samples from each patient were compared to each other: primary diagnostic sample and a sample taken at remission.

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CXCR4 is the receptor of CXC chemokine SDF-1 and may play a role in the homing of hematopoietic stem cells. We have investigated the CXCR4 gene expression during ATRA treatment in acute promyelocytic leukaemia (APL) patients. APL is a characteristic disorder with a specific translocation between PML and RAR alpha genes on chromosome 15 and 17.

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Purpose: The t(12;21) translocation is the most common reciprocal chromosomal rearrangement in pediatric acute lymphoblastic leukemia (ALL). This translocation fuses two genes, TEL and AML1, and results in the production of the TEL-AML1 fusion protein. The authors investigated the incidence and prognostic significance of the TEL-AML1 fusion gene in patients with ALL in Turkey.

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Purpose: The purpose is to develop a real-time multiplex reverse transcription-PCR assay for detection and quantification of leukemia-specific chimeric transcripts that identify the genetic subgroups of acute lymphoblastic leukemias (ALLs) proposed by the WHO classification.

Experimental Design: Real-time multiplex assay for t(12;21), t(4;11), and t(1;19) with hypoxanthine phosphoribosyltransferase as internal standard used in tandem with a new real time quantitative-RT-PCR assay for the t(9;22). This new strategy was designed to yield an amplicon from each translocation with a distinct melting peak allowing dependable identification using only Sybr green I, without any need for expensive hybridization probes.

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BCR/ABL expression, which is the molecular equivalent of the Philadelphia chromosome, is an independent poor risk factor in acute lymphoblastic leukemia (ALL). We used a two-step (nested) reverse transcriptase polimerase chain reaction (RT-PCR) assay to examine BCR/ABL expression in the diagnostic bone marrow specimen of children with ALL, prospectively. Among 75 de novo ALL patients, 4 (%5.

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Purpose: Factor V Leiden mutation is a common genetic defect associated with a tendency to venous thrombosis. The aim of this study was to evaluate the prevalence of factor V Leiden in patients with retinal vein occlusion (RVO).

Methods: Blood samples were obtained from fifty RVO patients and were tested for factor V Leiden using DNA analysis.

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