Identification of ADRA2A polymorphisms related to shear-mediated platelet function

Mariko Yabe, Yumiko Matsubara, Shinichi Takahashi, Hiroaki Ishihara, Toshiro Shibano, Koichi Miyaki, Kazuyuki Omae, Gentaro Watanabe, Mitsuru Murata, Yasuo Ikeda

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

α2A adrenergic receptor (ADRA2A) on platelets interacts with epinephrine, which has a key role in regulating platelet functions. There is familial clustering of inter-individual variations in the epinephrine-induced platelet aggregation, the molecular basis of which, however, has not been fully understood. In this study, we screened the sequence variations in the transcriptional region of ADRA2A gene and analyzed the relationship between the two common polymorphisms and platelet function using epinephrine/collagen cartridge in the platelet function analyzer-100 system®, in a healthy Japanese male population (n = 211). Among the identified 16 sequence variations including five novel variations, 1780GG genotype was associated with longer closure time which represents low platelet function under high shear-stress conditions (p = 0.0478). We also observed enhanced effect of the combination of 1780GG and 2372AA genotypes on longer closure time (p = 0.0319). These findings suggest that 1780A/G and 2372A/G polymorphisms are associated with platelet function in interactions with collagen/epinephrine.

Original languageEnglish
Pages (from-to)1001-1005
Number of pages5
JournalBiochemical and Biophysical Research Communications
Volume347
Issue number4
DOIs
Publication statusPublished - 2006 Sep 8

Fingerprint

Platelets
Polymorphism
Blood Platelets
Epinephrine
Collagen
Genotype
Platelet Aggregation
Adrenergic Receptors
Cluster Analysis
Shear stress
Agglomeration
Genes
Population

Keywords

  • α2A adrenergic receptor
  • Platelet
  • Polymorphism

ASJC Scopus subject areas

  • Biochemistry
  • Biophysics
  • Molecular Biology

Cite this

Yabe, M., Matsubara, Y., Takahashi, S., Ishihara, H., Shibano, T., Miyaki, K., ... Ikeda, Y. (2006). Identification of ADRA2A polymorphisms related to shear-mediated platelet function. Biochemical and Biophysical Research Communications, 347(4), 1001-1005. https://doi.org/10.1016/j.bbrc.2006.06.180

Identification of ADRA2A polymorphisms related to shear-mediated platelet function. / Yabe, Mariko; Matsubara, Yumiko; Takahashi, Shinichi; Ishihara, Hiroaki; Shibano, Toshiro; Miyaki, Koichi; Omae, Kazuyuki; Watanabe, Gentaro; Murata, Mitsuru; Ikeda, Yasuo.

In: Biochemical and Biophysical Research Communications, Vol. 347, No. 4, 08.09.2006, p. 1001-1005.

Research output: Contribution to journalArticle

Yabe, M, Matsubara, Y, Takahashi, S, Ishihara, H, Shibano, T, Miyaki, K, Omae, K, Watanabe, G, Murata, M & Ikeda, Y 2006, 'Identification of ADRA2A polymorphisms related to shear-mediated platelet function', Biochemical and Biophysical Research Communications, vol. 347, no. 4, pp. 1001-1005. https://doi.org/10.1016/j.bbrc.2006.06.180
Yabe, Mariko ; Matsubara, Yumiko ; Takahashi, Shinichi ; Ishihara, Hiroaki ; Shibano, Toshiro ; Miyaki, Koichi ; Omae, Kazuyuki ; Watanabe, Gentaro ; Murata, Mitsuru ; Ikeda, Yasuo. / Identification of ADRA2A polymorphisms related to shear-mediated platelet function. In: Biochemical and Biophysical Research Communications. 2006 ; Vol. 347, No. 4. pp. 1001-1005.
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