Genotyping patients with recent blood transfusions

Michelle Ng Gong, Yang Sai, Wei Zhou, B. Taylor Thompson, Li Lian Xu, David C. Christiani

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Background: Many studies have used polymerase chain reaction amplification (PCR) to genotype for common polymorphisms in intensive-care units (ICUs) where blood transfusions are common. Evidence that donor leukocytes in transfused blood can be detected by PCR of the recipient blood suggests that this minor population of donor white cells (microchimerism) can interfere with genotyping of allelic polymorphisms in critically ill transfused patients. To investigate this possibility, we assayed DNA extracted from the blood and buccal cells of ICU patients for 2 common polymorphisms in the TNF-β gene and the surfactant protein-B (SP-B) gene. Methods: Study subjects were ICU patients from the Massachusetts General Hospital (Boston, MA) enrolled into a study on the molecular epidemiology of acute respiratory distress syndrome between January 1999 and October 2000. Blood and buccal cells were collected and DNA was extracted from 145 patients. Genotyping was performed by enzyme digestion and pyrosequencing. Results: The Kappa statistics comparing the genotype results from blood and buccal cells were 0.98 (95% confidence interval [CI] = 0.94-1.01) for TNFB and 0.95 (CI = 0.87-1.02) for SP-B. When the analysis was restricted only to the 107 patients who were transfused, the Kappa statistic remained high at 0.97 (CI = 0.93-1.01) for TNFB and 0.93 (CI = 0.84-1.03) for SP-B. Conclusion: We conclude that microchimerism from allogeneic blood transfusion is unlikely to have major effects on the genotype results of common polymorphisms in large molecular epidemiology studies conducted in the critical care setting if DNA is collected within a day after transfusions.

Original languageEnglish (US)
Pages (from-to)744-747
Number of pages4
JournalEpidemiology
Volume14
Issue number6
DOIs
StatePublished - Nov 2003
Externally publishedYes

Fingerprint

Blood Transfusion
Cheek
Confidence Intervals
Intensive Care Units
Blood Cells
Chimerism
Molecular Epidemiology
Genotype
DNA
Tissue Donors
Polymerase Chain Reaction
Adult Respiratory Distress Syndrome
Critical Care
Critical Illness
Surface-Active Agents
General Hospitals
Digestion
Leukocytes
Enzymes
Population

Keywords

  • Blood transfusion
  • Intensive-care unit
  • Polymerase chain reaction
  • Polymorphism (genetics)

ASJC Scopus subject areas

  • Epidemiology

Cite this

Gong, M. N., Sai, Y., Zhou, W., Thompson, B. T., Xu, L. L., & Christiani, D. C. (2003). Genotyping patients with recent blood transfusions. Epidemiology, 14(6), 744-747. https://doi.org/10.1097/01.ede.0000091680.23304.21

Genotyping patients with recent blood transfusions. / Gong, Michelle Ng; Sai, Yang; Zhou, Wei; Thompson, B. Taylor; Xu, Li Lian; Christiani, David C.

In: Epidemiology, Vol. 14, No. 6, 11.2003, p. 744-747.

Research output: Contribution to journalArticle

Gong, MN, Sai, Y, Zhou, W, Thompson, BT, Xu, LL & Christiani, DC 2003, 'Genotyping patients with recent blood transfusions', Epidemiology, vol. 14, no. 6, pp. 744-747. https://doi.org/10.1097/01.ede.0000091680.23304.21
Gong MN, Sai Y, Zhou W, Thompson BT, Xu LL, Christiani DC. Genotyping patients with recent blood transfusions. Epidemiology. 2003 Nov;14(6):744-747. https://doi.org/10.1097/01.ede.0000091680.23304.21
Gong, Michelle Ng ; Sai, Yang ; Zhou, Wei ; Thompson, B. Taylor ; Xu, Li Lian ; Christiani, David C. / Genotyping patients with recent blood transfusions. In: Epidemiology. 2003 ; Vol. 14, No. 6. pp. 744-747.
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