Metformin reduces total microparticles and microparticles-expressing tissue factor in women with polycystic ovary syndrome.

Abstract:

PURPOSE:The objective of this study was to evaluate the levels of total microparticles (MPs) and microparticles-expressing tissue factor (TFMPs) in women with polycystic ovarian syndrome (PCOS) who use metformin comparing to those who do not take metformin. METHODS:We quantified total MPs and TFMPs in the plasma of 50 patients with PCOS-13 of these women used metformin (850 mg 2×/day during at least 6 months) and the other 37 did not. For this purpose, the microparticles (MPs) were purified by differential centrifugation of the plasma and, subsequently, by flow cytometry, using annexin-V and CD142 as markers. RESULTS:Total MPs levels were lower in treated patients (59.58 ± 28.43 MPs/µL) when compared to untreated group (97.32 ± 59.42; p = 0.033). Plasma levels of TFMPs were also significantly lower in the group of patients who used metformin (1.10 ± 0.94 MPs/µL) when compared to untreated patients (2.20 ± 1.42 MPs/µL) (p = 0.003). CONCLUSIONS:Considering that metformin reduced the levels of total MPs and TFMPs, our results suggest that this mechanism could be involved in the antithrombotic metformin effect, corroborating with the indication of this drug in the PCOS treatment.

journal_name

Arch Gynecol Obstet

authors

Carvalho LML,Ferreira CN,Candido AL,Reis FM,Sóter MO,Sales MF,Silva IFO,Nunes FFC,Gomes KB

doi

10.1007/s00404-017-4471-0

subject

Has Abstract

pub_date

2017-10-01 00:00:00

pages

617-621

issue

4

eissn

0932-0067

issn

1432-0711

pii

10.1007/s00404-017-4471-0

journal_volume

296

pub_type

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