Blood clotting activation during normal pregnancy. 1996

P Comeglio, and S Fedi, and A A Liotta, and A P Cellai, and E Chiarantini, and D Prisco, and F Mecacci, and E Parretti, and G Mello, and R Abbate
Istituto di Clinica Medica Generale e Cardiologia, University of Florence, Italy.

Pregnancy is considered as a hypercoagulable state and an increased incidence of thromboembolic phenomena has been reported in pregnant women. Relevant changes in the hemostatic mechanism have been reported during physiological pregnancy: briefly, increased levels of coagulation factors, enhanced thrombin generation and suppression of fibrinolysis are commonly found in women with uncomplicated pregnancy. We recently described progressive increases in fibrinogen and D-dimer plasma levels during normal pregnancy. The increase in D-dimer levels makes difficult their interpretation for the exclusion of thromboembolic phenomena in pregnancy. The behavior of prothrombin fragment 1+2 (F1+2) levels during physiological pregnancy is scarcely known. The aim of this preliminary study was to establish range values of F1+2 plasma levels for different periods of normal pregnancy.

UI MeSH Term Description Entries
D011247 Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH. Gestation,Pregnancies
D011516 Prothrombin A plasma protein that is the inactive precursor of thrombin. It is converted to thrombin by a prothrombin activator complex consisting of factor Xa, factor V, phospholipid, and calcium ions. Deficiency of prothrombin leads to hypoprothrombinemia. Coagulation Factor II,Factor II,Blood Coagulation Factor II,Differentiation Reversal Factor,Factor II, Coagulation,Factor, Differentiation Reversal,II, Coagulation Factor
D001777 Blood Coagulation The process of the interaction of BLOOD COAGULATION FACTORS that results in an insoluble FIBRIN clot. Blood Clotting,Coagulation, Blood,Blood Clottings,Clotting, Blood
D001780 Blood Coagulation Tests Laboratory tests for evaluating the individual's clotting mechanism. Coagulation Tests, Blood,Tests, Blood Coagulation,Blood Coagulation Test,Coagulation Test, Blood,Test, Blood Coagulation
D005260 Female Females
D005340 Fibrinogen Plasma glycoprotein clotted by thrombin, composed of a dimer of three non-identical pairs of polypeptide chains (alpha, beta, gamma) held together by disulfide bonds. Fibrinogen clotting is a sol-gel change involving complex molecular arrangements: whereas fibrinogen is cleaved by thrombin to form polypeptides A and B, the proteolytic action of other enzymes yields different fibrinogen degradation products. Coagulation Factor I,Factor I,Blood Coagulation Factor I,gamma-Fibrinogen,Factor I, Coagulation,gamma Fibrinogen
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults

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