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.

Author: Bakazahn Shakakinos
Country: Central African Republic
Language: English (Spanish)
Genre: History
Published (Last): 19 November 2018
Pages: 288
PDF File Size: 14.93 Mb
ePub File Size: 6.57 Mb
ISBN: 316-5-28617-535-9
Downloads: 35902
Price: Free* [*Free Regsitration Required]
Uploader: Yogrel

We can suggest these four species as a sources of new imtrinseca substances. Archivado desde el original el 16 de abril de Results for algal extracts in vai anticoagulant tests are in table 1. As anticoagulant time reference 6.

This fact makes the discovery of new anticoagulant substances a priority issue in research. Halimeda discoidea Chlorophyta con actividad semejante a la heparina. Journal of Applied Phycology Naito K, Fujikawa K Apr Caulerpa paspaloides Chlorophyta fue activa solamente en el tiempo de trombina.

Caulerpa paspaloides Chlorophyta was active only in the thrombin time test. This is the first report of anticoagulant activity in Anadyomene stellataLobophora variegata and Liagora farinosa. Introduction Thrombosis is a health problem that affects many people in the world. Highly sulfated dermatan sulfates from ascidians.

This last molecule is a sulfated glicosaminoglycan used in al therapy for anticoagulant disorders. Current views on blood coagulation and haemostatic mechanism. Our results showed four species with similar activity susceptible of further research for isolation and characterizations of active substances.

Forty 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. A simple method of studying the generation of thrombin in recalcificated plasma.


CASCADA DE COAGULACION by mitzy sabrina rodriguez anaya on Prezi

We considered that algal extracts have substances capable of inhibit clot formation in the last steps of the coagulation cascade. Revista de la Sociedad Mexicana de Historia Natural American Journal of Human Genetics 48 5: Thrombosis and Haemostasis 98 1: Comparative Biochemistry and Physiology B: Niveles elevados de factor XI han sido implicados en casos de trombosisaunque es incierto que es lo que determina estos niveles, y cuan severo puede ser el estado procoagulante.

Cryptogamie Algolologie 16 3: Bases de datos de enzimas. It is relevant to point out the dependence of anticoagulant potency due to the locality where algae grows, also the date of collection and thus, the climate season is other factor that could influence the synthesis of compounds, particularly in the brown alga Lobophora variegata we observed the double anticoagulant action in sample collected in May ofbut six months later Novembersame specie only was active in the prothrombin time test.

Propiedades anticoagulantes de extractos de algas marinas mexicanas: We considered an algal extract with anticoagulant activity similar to heparin when this impede the clot formation during 10 minutes or more. Thrombosis Research 55 3: We also detected a h 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 cupressoidesExtriseca.

The discovery of alternative anticoagulant molecules must be an important task for scientists. We can concluded that these species can be considered as potentially alternative source of anticoagulant molecules.

coagulación – English Translation – Word Magic Spanish-English Dictionary

The extract of L. Biological activity of extracts from some Mediterranean macrophytes. Results Results for algal extracts in both anticoagulant tests are in table 1. Introduction to Applied Phycology. Journal of Molecular Biology 2: Agardh Rhodophyta retarded the coagulation process of human plasma in both anticoagulant tests for less than two minutes period and more than one minute.


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.

Factor de coagulación XI

lla Cytogenetics and Cell Genetics 52 In Campeche state we colleted phycological material in: Similar results were detected in Caulerpa cupressoides extracts collected in three occasions, in this case even the total absence of activity was detected in one sample. Purification and characterization of two fibrinolytic enzymes from the marine green alga, Codium intricatum.

Seligsohn U Jul El factor IXa, por otro lado, activa al factor X. It is known that species of Chlorophyta synthesized polydisperse heteropolysaccarides with low sulfate content, glucoronoxilorhamans, glucoronoxilorhamagalactans and xyloarabinogalactans, some of them with a potent anticoagulant activity Uehara et al.

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.

Supporting the use of this method is the evidence that the results of Deacon et al. The results showed other algae with slightly inhibition of clot formation activity, 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.

Other seven species presented a slightly anticoagulant activity.