title: Effects of propylene glycol mannate sulfate on thrombosis in abdominal aorta in rabbits.
abstract: OBJECTIVE
  To study the effects of propylene glycol mannate sulfate (PGMS) on platelet adhesion, aggregation and thrombosis in abdominal aorta in rabbits.
  
  
  METHODS
  Platelet adhesion assay was performed with a platelet-adhesion-meter. The platelet concentration was determined with an electronic particle counter, and the total radio-activity was determined with Clinigamma-1272.
  
  
  RESULTS
  PGMS inhibited washed platelet aggregation induced by thrombin in vitro. The value of IC50 was 0.9 mg.L(-1). (95% confidence limit = 4.1-13.7 mg.L(-1). At 10, 30, and 60 min after i.v. PGMS 75 mg.kg(-1), the inhibition rates of platelet adhesion were 90.4%, 41.8%, and 26.3% and the inhibition rates of platelet aggregation induced by thrombin were 99%, 122%, and 110%, respectively. It did not exhibit any noticeable effect on platelet aggregation induced by ADP and collagen at this dosage. After 1.5 h of i.v. PGMS 75 mg.kg-1 and total autologous 111In-platelets 3.3 x 10(9) the radioactivity and dry weight of the injured and uninjured segments were determined. The PGMS group showed a significantly lower radioactivity (1.1 +/- 0.6 MBq), 111In-platelets (8.3 +/- s 3.3 x 10(8)) as well as the radioactivity deposited.g(-1) out of the total radioactivity infused % (0.24 +/- 0.21) compared with the control group (3.7 +/- 0.5 MBq, 24.6 +/- 3.5 x 10(8), and 0.86 +/- 0.25, respectively).
  
  
  CONCLUSIONS
  PGMS prevented the platelet adhesion and aggregation at the injured arterial wall.
authors.affiliation: Division of Hematology, Peking Union Medical College Hospital, Beijing, China.
authors.forename: X M
authors.initials: XM
authors.lastname: Chen
authors.forename: J Q
authors.initials: JQ
authors.lastname: Pan
authors.forename: Z N
authors.initials: ZN
authors.lastname: Zhang
mesh_terms: D000818:Animals; D001012:Aorta, Abdominal; D005260:Female; D010973:Platelet Adhesiveness / Q000187:drug effects; D010974:Platelet Aggregation / Q000187:drug effects*; D010975:Platelet Aggregation Inhibitors / Q000494:pharmacology*; D019946:Propylene Glycol; D011409:Propylene Glycols / Q000494:pharmacology*; D011817:Rabbits; D013927:Thrombosis / Q000517:prevention & control*
chemical_list: D010975:Platelet Aggregation Inhibitors; D011409:Propylene Glycols; D019946:Propylene Glycol