title: Level, distribution and correlates of platelet-derived microparticles in healthy individuals with special reference to the metabolic syndrome.
abstract: Platelet-derived microparticles (PDMPs), a procoagulant factor, are reportedly elevated in type 2 diabetes mellitus and acute coronary syndrome. The metabolic syndrome (MS) is strongly associated with cardio- and cerebrovascular disease-related atherothrombotic events. To clarify the level, distribution and correlates of PDMPs with special reference to MS, we conducted a cross-sectional study of 467 healthy Japanese volunteers without signs, symptoms, or a history of cardio- or cerebrovascular disease. They were 211 men and 256 women (median age 39 and 35 years, respectively). Using an ELISA kit and monoclonal antibodies against CD42b and CD42a (glycoprotein Ib and IX) we assayed the PDMP levels. Total cholesterol, low-density and high-density lipoprotein cholesterol, remnant cholesterol, triglycerides, C-reactive protein, and traditional cardiovascular risk factors were also recorded. There was a significant difference in the level of PDMPs between men and women. The median value and the interquartile range of PDMPs was 8.3 IU/ml and 6.2-10.5 IU/ml and 6.8 IU/ml and 5.2-8.6 IU/ml, respectively, in men and women. PDMPs were significantly associated with MS criteria in men (p < 0.001) and women (p = 0.040). Logistic regression analysis revealed a significant odds ratio of 3.9 [95% confidence interval (CI): 1.4-10.5] in men and of 4.2 [95% CI: 1.6-10.7] in the entire study population. Our results suggest that PDMPs identified by glycoprotein CD42b and CD42a are positively associated with MS.
authors.affiliation: Department of Neurosurgery, Kishiwada City Hospital, Kishiwada, Japan. tueba@kuhp.kyoto-u.ac.jp
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Ueba
authors.forename: Takane
authors.initials: T
authors.lastname: Haze
authors.forename: Masaki
authors.initials: M
authors.lastname: Sugiyama
authors.forename: Mami
authors.initials: M
authors.lastname: Higuchi
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Asayama
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Karitani
authors.forename: Tomofumi
authors.initials: T
authors.lastname: Nishikawa
authors.forename: Kohsuke
authors.initials: K
authors.lastname: Yamashita
authors.forename: Shuhei
authors.initials: S
authors.lastname: Nagami
authors.forename: Takeo
authors.initials: T
authors.lastname: Nakayama
authors.forename: Kazushi
authors.initials: K
authors.lastname: Kanatani
authors.forename: Shosaku
authors.initials: S
authors.lastname: Nomura
mesh_terms: D000328:Adult; D000368:Aged; D044466:Asian People; D001777:Blood Coagulation / Q000502:physiology*; D001792:Blood Platelets / Q000166:cytology* / Q000378:metabolism*; D002097:C-Reactive Protein / Q000378:metabolism; D003430:Cross-Sectional Studies; D005260:Female; D005434:Flow Cytometry; D006801:Humans; D016015:Logistic Models; D008297:Male; D024821:Metabolic Syndrome / Q000097:blood* / Q000208:ethnology*; D008875:Middle Aged; D010316:Particle Size; D019038:Platelet Glycoprotein GPIb-IX Complex / Q000378:metabolism; D012307:Risk Factors
chemical_list: D019038:Platelet Glycoprotein GPIb-IX Complex; D002097:C-Reactive Protein