title: Synthetic Hormones and Clot Formation.
abstract: Combined oral contraceptives (COCs), colloquially referred to as "the pill," have been regarded as a medical breakthrough, as they have improved the lives of countless women, from simplifying family planning to the treatment of acne, endometriosis, polycystic ovarian syndrome, and dysmenorrhea. Unfortunately, COC usage has been associated with an increased occurrence of venous thrombosis and therefore a systemic hypercoagulable state in susceptible females. Here we discuss the health risks of COC usage and use viscoelastic and morphological techniques to investigate the effect of different COC constituents on clot formation, particularly fibrin network packaging and whole blood viscoelasticity. Viscoelastic properties of whole blood showed gender-specific changes while morphological alterations were person-specific, regardless of gender. Using scanning electron microscopy and thromboelastography provides great insight regarding fibrin packaging and the development of a hypercoagulable state in high-risk individuals. We proposed a three-step approach where (1) an individual's coagulation profile baseline is determined, after which (2) the "ideal" combination of constituents is prescribed, and (3) the coagulation profile of the individual is monitored to assess possible risk of thrombosis. Only in following such an individualized patient-oriented approach will we be able to avoid the many health issues due to COC usage in susceptible females.
authors: Department of Physiology,School of Medicine, Faculty of Health Sciences,University of Pretoria,Private Bag x323,Pretoria, Arcadia0007,South Africa.
authors: Albe C
authors: AC
authors: Swanepoel
authors: Department of Physiology,School of Medicine, Faculty of Health Sciences,University of Pretoria,Private Bag x323,Pretoria, Arcadia0007,South Africa.
authors: Amcois
authors: A
authors: Visagie
authors: Department of Physiology,School of Medicine, Faculty of Health Sciences,University of Pretoria,Private Bag x323,Pretoria, Arcadia0007,South Africa.
authors: Etheresia
authors: E
authors: Pretorius
mesh_terms: D001777:Blood Coagulation / Q000187:drug effects*; D003277:Contraceptives, Oral, Combined / Q000009:adverse effects* / Q000494:pharmacology*; D005260:Female; D006801:Humans; D057285:Precision Medicine; D012307:Risk Factors; D012737:Sex Factors; D013916:Thrombelastography; D013927:Thrombosis / Q000139:chemically induced* / Q000517:prevention & control
chemical_list: D003277:Contraceptives, Oral, Combined
keywords: combined oral contraceptives; hypercoagulability; morphology; venous thrombosis; viscoelasticity