Publications by authors named "Milena Velizarova"

Background: Copper (Cu) is a physiologically important trace element during pregnancy. The study aim is to assess the altered level of serum Cu and its association with some metabolic indexes in Gestational Diabetes Mellitus (GDM).

Methods: A total of 108 pregnant women (aged 18 - 40, second trimester) are included in the study and divided into two groups (GDM n = 54; pregnant with normal glucose tolerance (NGT), n = 54) after performing a 2-hour 75-g oral glucose tolerance test (OGTT).

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Article Synopsis
  • The study focuses on the genetic variations of CYP2C9 and VKORC1 in the Bulgarian population to predict bleeding risks and optimize anticoagulant therapy following cardiac surgery with heart-lung machines.
  • Researchers analyzed DNA samples from 200 cardiac surgery patients, finding a high prevalence of certain CYP2C9 genotypes, particularly CYP2C9*1, and noted that VKORC1 G/A was the most common genotype.
  • The findings suggest that identifying VKORC1 homozygous carriers could help in personalizing anticoagulant treatment, while CYP2C9*2 and *3 variants were rare, indicating a lesser impact on treatment adjustments.
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Background: DYMIND DH76 (DYMIND BIOTECH, China) is a new automated hematology system designed to provide CBC count, including a 5-part WBC differential count, and its analytical performance should be assessed before adoption for clinical use.

Methods: The analyzer was evaluated according to the International Council for Standardization in Haematology guideline. The purposes of this study were to assess its analytical performance in comparison to SYSMEX XN 1000 hematology analyzer currently used in our laboratory, as well as to compare the automated and manual WBC differential.

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Background: Hepcidin is a 25-aminoacid cysteine-rich iron regulating peptide. Hepcidin quantification in human serum provides new insights for the pathogenesis of disorders of iron homeostasis. This study describes an ELISA immunoassay for hepcidin quantification in human serum and reference ranges for Bulgarian population.

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Objective: Treatment of acute lymphoblastic leukemia (ALL) in adults focuses on the initial assessment of the prognostic relevant cytogenetic features as well as a response-guided therapy based on molecular data. We examined the importance of molecular-cytogenetic abnormalities for complete remission (CR) rates and the overall survival (OS) in adult ALLs.

Methods: Conventional cytogenetics and fluorescence in situ hybridization were performed on bone marrow cells from 33 newly-diagnosed ALL adults.

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Objective: The majority of adults diagnosed with acute myeloid leukemia (AML) display acquired cytogenetic aberrations at presentation. In this article, we present the major cytogenetic findings regarding AML and review their clinical significance for achievement of the first complete remission.

Methods: We studied 71 adult patients with de novo AML, without previous myelodysplasia or alkylating therapy.

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B-cell acute lymphoblastic leukemia (B-ALL) accounts for 20-30% of acute leukemias in adults. Combined application of data from immunophenotyping, karyotyping and molecular analyses allows a better understanding of this heterogeneous disease. We studied 30 adult patients with newly diagnosed B-ALL by conventional cytogenetics, fluorescent in situ hybridization (FISH) and immunophenotyping analyses.

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