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

HLA-DR,DQ nucleotide sequence polymorphisms in five Melanesian populations.

X Gao1, K Bhatia, R J Trent

  • 1Human Genetics Group, John Curtin School of Medical Research, Australian National University.

Tissue Antigens
|July 1, 1992
PubMed
Summary

This study reveals significant diversity in Human Leukocyte Antigen (HLA)-DRB1 alleles among Melanesian populations, identifying specific common alleles in coastal, island, and highland groups. These findings clarify previous observations of limited HLA-DR diversity, attributing it to earlier typing method limitations.

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

Maternal and neonatal outcomes in pregnant patients with Brugada Syndrome - a multicentre retrospective study (2014-2025).

International journal of obstetric anesthesia·2026
Same author

General anaesthesia for caesarean delivery in women with class 3 obesity: case series from nine hospitals across the north-west of England (2022-2023).

International journal of obstetric anesthesia·2025
Same author

Intrathecal bupivacaine dose in spinal anaesthesia for prevention of pain during caesarean delivery - the "white elephant" in the guidelines - in response to "Shedding more light on the management of intraoperative pain during cesarean delivery: a review of the American Society of Anesthesiologists statements."

International journal of obstetric anesthesia·2025
Same author

Is it time to standardise the definition of difficult intubation in obstetric anaesthesia? - In response to "Rate of difficult intubation during caesarean delivery: a single centre before/after standardised airway management implementation study".

International journal of obstetric anesthesia·2025
Same author

Anaesthesia for caesarean delivery in women with class 3 obesity: a retrospective cohort study from the north-west of England (2022-2023).

International journal of obstetric anesthesia·2025
Same author

Total intravenous anaesthesia for caesarean delivery: incidence, maternal and neonatal outcomes from a tertiary unit.

International journal of obstetric anesthesia·2023

Area of Science:

  • Human Genetics
  • Immunogenetics
  • Population Genetics

Background:

  • Human Leukocyte Antigen (HLA) complex plays a crucial role in immune response.
  • Previous studies suggested limited HLA-DR allele diversity in Melanesian populations.
  • Understanding HLA polymorphism is vital for population genetics and disease association studies.

Purpose of the Study:

  • To investigate Human Leukocyte Antigen (HLA)-DRB1 nucleotide sequence polymorphisms in diverse Melanesian populations.
  • To identify specific HLA-DRB1 alleles prevalent in coastal, island, and highland Melanesians.
  • To re-evaluate previous claims of restricted HLA-DR allelic diversity in Melanesians.

Main Methods:

  • Analysis of HLA-DRB1 nucleotide sequence polymorphisms in 304 Melanesians from Papua New Guinea, New Caledonia, and Fiji.

Related Experiment Videos

  • Utilized oligonucleotide hybridizations of exon 2 HLA-DRB1 polymerase chain reaction products.
  • Typing protocol designed to detect 42 officially-designated HLA-DRB1 alleles.

    • Main Results:

    • Detected 20 distinct HLA-DRB1 alleles across the studied Melanesian populations.
    • Identified DRB1*1502 and DRB1*1101 as common in coastal/island Melanesians; DRB1*1501, DRB1*1502, and DRB1*1408 predominated in highlanders.
    • Clarified previously undefined mixed lymphocyte reaction determinants, linking them to specific HLA-DRB1 alleles.
    • Unusual haplotypes, including DRB1*1502-DRB5*0101 and DRB1*0410-DQB1*0402, were identified.

    Conclusions:

    • Melanesian populations exhibit substantial HLA-DRB1 allelic diversity, contrary to earlier suggestions.
    • The observed diversity is attributed to the advanced typing methodology used in this study.
    • Findings provide a more accurate genetic landscape of HLA-DR alleles in Melanesia, important for future immunological and anthropological research.