Frequency of Pro475Ser polymorphism of ADAMTS13 gene and its association with ADAMTS-13 activity in the Korean population.

Yonsei Med J

Department of Internal Medicine, College of Medicine, Pochon CHA University, 351 Yatap-dong, Bundang-gu, Sungnam 463-712, Korea.

Published: June 2008

Purpose: The in vitro study suggested that proline to serine polymorphism in codon 475 (C1423T) of the A Disintegrin and Metalloprotease with ThromboSpondin type 1 repeats-13 (ADAMTS-13) gene is related to reduced activity of ADAMTS-13. In this study, the frequency of the Pro475Ser polymorphism in Koreans was studied and plasma ADAMTS-13 activity was measured to find out whether this polymorphism contributes to decreased ADAMTS-13 activity in Koreans.

Patients And Methods: The frequency of the C1423T allele of the ADAMTS13 gene was studied along with measuring plasma ADAMTS-13 activity in 250 healthy Korean individuals.

Results: The allele frequency of C1423T polymorphism was 4%, and the median activity of CT type was 107 (69-143)%, which was lower than in controls with the CC genotype [118 (48-197)%, (p=0.021)].

Conclusion: Therefore, the Pro475Ser polymorphism seems to be popular in the Korean population, and attenuates ADAMTS-13 plasma activity.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2615352PMC
http://dx.doi.org/10.3349/ymj.2008.49.3.405DOI Listing

Publication Analysis

Top Keywords

adamts-13 activity
16
pro475ser polymorphism
12
frequency pro475ser
8
adamts13 gene
8
korean population
8
plasma adamts-13
8
frequency c1423t
8
adamts-13
7
activity
7
polymorphism
6

Similar Publications

There are two main classifications for thrombotic thrombocytopenic purpura (TTP): immune and hereditary. The majority of TTP cases are immune in nature and are due to inhibitor autoantibodies against ADAMTS13. Hereditary TTP is caused by biallelic pathogenic variants in the ADAMTS13 gene.

View Article and Find Full Text PDF

Introduction: The TECHNOSCREEN ADAMTS-13 assay (ADSC) is a new lateral flow test which is simple and quick to perform, with a high negative predictive value (NPV); it may improve the diagnostic workflow for TTP. LabPlus in Auckland, New Zealand, performs all ADAMTS13 tests in the Auckland and Northland regions. The ADSC was used at LabPlus between 2022 and 2023 as part of a protocol where results of 0 IU/mL and 0.

View Article and Find Full Text PDF
Article Synopsis
  • The report discusses a unique case of atypical hemolytic uremic syndrome (aHUS) that involved multiple body systems, notably resulting in unilateral blindness and a stroke.
  • This condition is rarely reported with unilateral blindness, typically linked to central retinal artery obstruction (CRAO).
  • This is the first documented instance of aHUS leading to unilateral blindness due to severe (grade four) hypertensive retinopathy.
View Article and Find Full Text PDF
Article Synopsis
  • TTP is a serious condition linked to low activity of the ADAMTS-13 enzyme, with traditional testing methods being slow and labor-intensive.
  • A new automated chemiluminescent enzyme immunoassay (CLEIA) has been developed, which is sensitive and quick, allowing results in just 17 minutes.
  • The CLEIA showed excellent agreement with conventional assays in accurately measuring ADAMTS-13 activity and detecting inhibitory antibodies, making it a reliable option for diagnosing and monitoring TTP in hospitals.
View Article and Find Full Text PDF
Article Synopsis
  • Antibody-mediated inhibition of ADAMTS-13, a protein critical for blood clotting, leads to immune thrombotic thrombocytopenic purpura (iTTP), but the impact of multiple antibodies on this process is not fully understood.
  • The study examines how different antibodies interact with ADAMTS-13 and finds that while both stimulatory and inhibitory antibodies can bind simultaneously, the inhibition prevails when both are present.
  • Results suggest that these antibodies modify ADAMTS-13's catalytic activity through allosteric changes, indicating potential pathways for developing new diagnostic and therapeutic strategies for managing iTTP.
View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!