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Title: Hemostatic status and fibrinolytic response potential at different phases of the menstrual cycle
Authors: Koh, S.C.L. 
Prasad, R.N.V. 
Fong, Y.F. 
Keywords: Hemostasis
Menstrual cycle
Issue Date: Jul-2005
Citation: Koh, S.C.L., Prasad, R.N.V., Fong, Y.F. (2005-07). Hemostatic status and fibrinolytic response potential at different phases of the menstrual cycle. Clinical and Applied Thrombosis/Hemostasis 11 (3) : 295-301. ScholarBank@NUS Repository.
Abstract: Coagulation and fibrinolytic variables including platelet function and endogenous fibrinolytic response were determined in 30 normal healthy women volunteers not on any known medication during the period of study. They were between 18 years and 38 years old and had normal menstrual cycles of between 28 days and 30 days. Blood samples were obtained within one menstrual cycle and after having fasted overnight within days 1 to 3 (menstruation), 5 to 9 (follicular), 10 to 14 (mid-cycle), and 21 to 26 (luteal) of the menstrual cycle. Analysis of variance (ANOVA) showed no significant differences in the hemostatic parameters studied between the phases of the menstrual cycle except for a reduced D-dimer level at mid-cycle. Significant fibrinolytic response was seen after venous occlusion but they were not significantly different between the phases of the menstrual cycle. The women were then divided into either normal weight (n=22) or overweight (n=8) according to World Health Organization (WHO) classification and the data reanalyzed. Elevated tissue plasminogen activator antigen and plasminogen activator inhibitor-1 levels except at menstruation and total protein S except at follicular phase were observed in overweight women together with increased plasminogen level only at luteal phase. Significant endogenous fibrinolytic response seen during the menstrual cycle was not different between normal and overweight women. The study demonstrated that systemic coagulation, fibrinolysis, and platelet function were probably not influenced by natural hormonal changes occurring during the menstrual cycle except for an associated reduced fibrinolytic state at mid-cycle. The hemostatic system in this small group of healthy overweight women studied appeared to be physiologically compromised. ©2005 Westminster Publications, Inc.
Source Title: Clinical and Applied Thrombosis/Hemostasis
ISSN: 10760296
DOI: 10.1177/107602960501100308
Appears in Collections:Staff Publications

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