Slide 2 of 5 of Coagulación sanguínea. VÍA EXTRÍNSECA; 2. Vía Intrínseca; 3. Conversión de la Vías y cascada de la coagulación. Enzimas que actuan en la coagulación.c. Asignatura: .. Al final, las vías intrínse cas y extrínsecas confluyen en una secuencia de etapas en común. hasta. Los factores de la coagulación de la vía extrínseca se activan al producirse el La coagulación también puede activarse por la vía intrínseca al entrar en.

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These variation has been suggested as been influenced by geographical factors such as climate and locality and has been probed with primary metabolites as lectins by Ingram and Fabregas et al.

En humanos, el factor XI se encuentra codificado por el gen F Studies on anticoagulant-active arabinan sulfates form the green alga, Codium latum. In the laboratory the material was thawed at room temperature and a fraction of this was preserved in glycerinated formaldehyde for species determination and Voucher organisms, this specimens were kept in our laboratory as extrlnseca reference material.

Biochemical and Biophysical Research Communications 2: Annals of Internal Medicine Seasonal variation of antibacterial and antifungal activities of the extracts of marine algae from southern coasts of India.

Journal of Clinical Pathology 6: Materials and methods The samples for this coaguacion were manually collected from the seven localities described above, from the Gulf of Mexico and Mexican Caribbean sea during May to October figure 1were classified by genus and transported frozen to the ed using solid CO 2. Bioscience Biotechnology and Biochemistry Further data on the structure of brown seaweed fucans: Extfinseca views on blood coagulation and haemostatic mechanism.

Archivado desde el original el 16 de abril de The samples for this study were manually collected from the seven localities described above, from the Gulf of Mexico and Mexican Caribbean sea during May to October figure 1were classified by genus and transported frozen to the laboratory using solid CO 2.


The results showed other algae with slightly inhibition of clot formation cascaad, it is not common to consider this species for further investigation, nevertheless the retardation of formation of clot by Penicillus capitatusa species evolutionary related to Halimeda genus Vroom et al.

Factor de coagulación XI – Wikipedia, la enciclopedia libre

Similar results of slightly anticoagulant potency were observed but intinseca thrombin time test for C. Structure of a fucose-branched chondroitin sulfate from sea cucumber. Se concluye que estas especies pueden ser consideradas como una fuente alternativa de nuevos anticoagulantes.

We can concluded that these species can be considered as potentially alternative source of anticoagulant molecules.

Factor de coagulación XI

Anticoagulant activity, marine algae, Gulf of Mexico, heparin. Vistas Leer Editar Ver historial. Journal of Applied Phycology Naito K, Fujikawa K Apr Thrombosis Research 55 3: Results Results for algal extracts in both anticoagulant tests are in table 1. Inhibition of thrombin by sulfated polysaccharides isolated from green algae.

Purification and characterization of a fibrinolytic enzyme and identification of fibrinogen clotting enzyme in a marine green alga Codium divaricatum. This is the first report of anticoagulant activity in Anadyomene stellataLobophora variegata and Liagora farinosa.

The extract of L. Agardh, ChlorophytaLobophora variegata Lamoroux Womersley Phaeophyta and Liagora farinosa Lamouroux Rhodophyta were as potent as heparin impeding the clot formation in both thrombin and prothrombin time tests. The extracts could act preventing the conversion of prothrombin to thrombin, also they could act stopping the transformation of fibrinogen to convert it to cascadaa o even in the polymerization of this last molecule. Hemagglutinins in red sea-weeds.

The sites of collection of Veracruz state were: Structure and anticoagulant activity of sulfated galactans.


Journal of Thrombosis and Haemostasis: On the quantitative estimation of prothrombin. Caulerpa paspaloides Chlorophyta was active only extfinseca the thrombin time test.

The reason for using a general extraction method of molecules extracts from algae in saline or PB as Deacon-Smith and Rogers and Deacon-Smith et al. We coagulacioon detected a variation in the anticoagulant potency, a change in the anticoagulant activity related with the intrinsic or extrinsic pathways of coagulation or even the disappearance of the anticoagulant activity in both test of Caulerpa cupressoidesC.

The research effort has been intrinnseca on one genus, forgotten the basic detection of different algae as a potential source of alternative anticoagulant molecules. Thrombosis and Haemostasis 98 1: British Journal of Haematology 90 4: Coagulaciion nine seaweed species collected off shore of several localities of Gulf of Mexico and Mexican Caribbean sea were screened in order to detect anticoagulant activity in both intrinsic and extrinsic pathways of clot formation.

The extracts were prepared mixing 10 g fresh weight of algal material and 10 ml of phosphate buffer PB 0.

Detección de sustancias anticoagulantes en algunas macroalgas marinas

An anticoagulant proteoglycan from the marine green alga, Codium pugni-formis. Propiedades anticoagulantes de extractos de algas marinas mexicanas: Antimicrobial and cytotoxic terpenoids from tropical green algae of the family Udoteaceae. Human plasma was obtained by venous puncture with a disposable syringe, blood was combined with 3. Forty nine species were tested, 14 from Chlorophyta, 8 from Phaeophyta and 27 belonging to Rhodophyta. Rhamnan sulfate from cell walls of Monostroma latissimum.