Dr. Bray Paul Bray, M.D.

Contact Dr. Bray

1015 Walnut Street
Suite 324
Philadelphia, PA 19107

(215) 955-8544
(215) 955-9170 fax

Research and Clinical Interests
Dr. Bray's laboratory studies the role of platelets in cardiovascular disease, and disorders of bleeding and excessive blood clotting. His major areas of investigation include: (1) The role of platelets in arterial thrombosis, with the identification and functional characterization of platelet risk factors and their impact on cardiovascular therapy. He studies how genetic variations in platelet adhesive molecules affect both the clinical and platelet phenotypes. (2) Identification of novel genes and gene products involved in platelet reactivity using genome scan and platelet RNA expression array approaches. (3) Studies on gender differences and hormonal effects on platelet function and thrombosis. (4) Pharmacogenetic studies: a) testing for interactions between candidate genes and hormone therapy using DNA samples from the participants in the Women's Health Initiative, and b) candidate gene and genome-wide scan approaches for determining genes that regulate the platelet response to aspirin.

Publications

Most recent Peer-reviewed Publications

  1. Platelets: Developmental biology, physiology, and translatable platforms for preclinical investigation and drug development
  2. Platelet genomics beats the catch-22
  3. Differences in responses of platelets to fluid shear stress in patients with peripheral artery disease (PAD) and coronary artery disease (CAD)
  4. Platelet reactivity and genetics down on the pharm.
  5. R93W mutation in Orai1 causes impaired calcium influx in platelets.
  6. Usefulness of Baseline Lipids and C-Reactive Protein in Women Receiving Menopausal Hormone Therapy as Predictors of Treatment-Related Coronary Events
  7. β3 integrin haplotype influences gene regulation and plasma von Willebrand factor activity
  8. Transdermal 17-β estradiol replacement therapy reduces megakaryocyte GPVI expression
  9. Human platelets differentially concentrate estradiol, estrone and testosterone [2]
  10. Peripheral arterial occlusive disease: Magnetic resonance imaging and the role of aggressive medical management
  11. Confronting disparities in diabetes care: The clinical effectiveness of redesigning care management for minority patients in rural primary care practices
  12. Feasibility and effectiveness of system redesign for diabetes care management in rural areas: The Eastern North Carolina experience
  13. Coagulation markers predicting cardiac transplant rejection
  14. Genetics of arterial prothrombotic risk states
  15. Human platelets contain a glycosylated estrogen receptor β
  16. Human megakaryocytes and platelets contain the estrogen receptor β and androgen receptor (AR): Testosterone regulates AR expression
  17. Platelet GP IIIa Pl(A) polymorphisms display different sensitivities to agonists
  18. The Pl(A2) polymorphism of integrin β3 enhances outside-in signaling and adhesive functions
  19. Higher prevalence of GPIIIa PI(A2) polymorphism in siblings of patients with premature coronary heart disease
  20. Ex vivo cultured megakaryocytes express functional glycoprotein IIb-IIIa receptors and are capable of adenovirus-mediated transgene expression

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