Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Beta-thalassemia in Bulgaria.

G H Petkov1, G D Efremov, D G Efremov

  • 1Department of Pediatrics, Higher Medical Institute, Stara Zagora, Bulgaria.

Hemoglobin
|January 1, 1990
PubMed
Summary

Researchers identified 13 beta-thalassemia mutations in Bulgarian patients using DNA analysis. Common mutations like codon 39 and IVS-I-110 were found, alongside others, complicating prenatal diagnosis.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Qualitative and Quantitative Aspects of Discrepancies between Various Methods for Microsatellite Instability Detection.

Balkan journal of medical genetics : BJMG·2025
Same author

Endothelial ENaC as a repressor of oxidative stress and a guardian of lung capillary barrier function in bacterial and viral pneumonia.

Frontiers in physiology·2025
Same author

<i>CREBBP</i> is a Major Prognostic Biomarker for Relapse in Childhood B-cell Acute Lymphoblastic Leukemia: A National Study of Unselected Cohort.

Balkan journal of medical genetics : BJMG·2025
Same author

The clinical spectrum of HbSC sickle cell disease-not a benign condition.

British journal of haematology·2024
Same author

Association Between the Polymorphism of Angiotensin-Converting Enzyme Gene and Interleukin-1 Beta Gene and the Response to Erythropoietin Therapy in Dialysis Patients with Anemia.

Balkan journal of medical genetics : BJMG·2024
Same author

Co-Existence of <i>CYP2C19</i>*1/*2 and <i>ABCB1c</i>.3435 CT Genotype has a Potential Impact on Clinical Outcome in CAD Patients Treated with Clopidogrel.

Balkan journal of medical genetics : BJMG·2024

Area of Science:

  • Medical Genetics
  • Molecular Biology
  • Hematology

Background:

  • Beta-thalassemia is a severe inherited blood disorder.
  • Genetic mutations in the beta-globin gene cause beta-thalassemia.
  • Understanding mutation spectrum is crucial for genetic counseling and diagnosis.

Purpose of the Study:

  • To identify and characterize beta-thalassemia mutations in a Bulgarian patient cohort.
  • To assess the frequency of different beta-thalassemia alleles in this population.
  • To evaluate the implications for prenatal diagnosis and genetic screening.

Main Methods:

  • DNA analysis of 64 thalassemia major patients.
  • Hybridization technique using amplified DNA.
  • Radiolabeled synthetic oligonucleotide probes for mutation detection.

Related Experiment Videos

Main Results:

  • Identified 13 distinct beta-thalassemia mutations.
  • Codon 39 (C-T) and IVS-I-110 (G-A) were the most frequent mutations.
  • Seven additional mutations found at frequencies between 3.9% and 10.2%.
  • Promoter mutations were rare; mild mutations (IVS-I-6, poly A) had low frequencies.
  • Four frameshift mutations (codons 5, 6, 8, 8/9) occurred at high frequencies (4.7-5.5%), potentially population-specific.

Conclusions:

  • The broad spectrum of beta-thalassemia alleles presents challenges for prenatal diagnosis in Bulgaria.
  • The high frequency of certain frameshift mutations may be characteristic of the Bulgarian population.
  • Beta-thalassemia appears to be a severe disease in this population due to the prevalence of severe mutations.