Factor XI, or plasma thromboplastin antecedent, is the zymogen form of factor XIa, one of the enzymes involved in coagulation. Like many other coagulation factors, it is a serine protease.

Jun 20, 2022 · What is hemophilia C? Hemophilia C (also known as Factor XI Deficiency or Rosenthal syndrome) is a rare form of hemophilia. Hemophilia is a blood disorder that …

Apr 27, 2022 · Learn about Factor XI Deficiency, including symptoms, causes, and treatments. If you or a loved one is affected by this condition, visit NORD to find

Jul 21, 2022 · What Is Factor XI Deficiency? Factor XI deficiency is a rare, inherited bleeding disorder. XI means “eleven” in Roman numerals. If you have factor XI deficiency, your blood …

Factor XI (FXI) deficiency, also called hemophilia C, plasma thromboplastin antecedent deficiency and Rosenthal syndrome, was first recognized in 1953 in patients who experienced severe …

Factor XI (eleven) is a plasma glycoprotein that acts in the contact phase of blood coagulation (the intrinsic pathway). Unlike the other contact factors (high molecular weight kininogen …

Factor XI deficiency is a disorder that can cause abnormal bleeding due to a shortage (deficiency) of the factor XI protein, which is involved in blood clotting. Explore symptoms, inheritance, …

May 10, 2024 · Factor XI deficiency, also known as hemophilia C, is a rare bleeding disorder that affects the blood's ability to clot properly. It is caused by a deficiency or dysfunction of Factor …

The normal range for factor XI activity levels is 65 to 130 U/dL, or 65% to 130%. If your results are lower than normal, it means you may have factor XI deficiency.

Oct 15, 2021 · Factor XI (FXI) is the zymogen of a plasma protease, factor XIa (FXIa), that contributes to thrombin generation during blood coagulation by proteolytic activation of several …