Biomaterial Database

Platelet aggregation abnormalities in arterial occlusive diseases (AOD). 1984

K U Benner, and M Geeren, and V Burstedde, and B Everts

Ex vivo and in vitro studies of blood platelets were performed on a total of 70 clinically healthy donors of different age and sex and compared with the results observed in 86 patients suffering from venous thrombotic or arterial occlusive diseases (AOD) of the lower limb using several techniques. Significant thrombocytic hyperfunction present was found both nephelometrically and with the Wu and Hoak method in AOD. The nephelometrical data could be substantiated with the platelet-count-ratio (PCR) technique. The present studies demonstrate that all techniques available have serious limitations. Both the Wu and Hoak and the Born methods are incapable to reveal latent and abortive platelet dysfunctions. Pilot studies suggest that the resolution power of the nephelometric device can be augmented when platelet reactivity is increased by a "physiological" maneuver, namely by maximal body exercise of the subject to be examined, immediately before the aggregation test. It is emphasized that adherence to constant experimental conditions is a "conditio sine qua non" for comparative studies on platelet function.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D009391	Nephelometry and Turbidimetry	Chemical analysis based on the phenomenon whereby light, passing through a medium with dispersed particles of a different refractive index from that of the medium, is attenuated in intensity by scattering. In turbidimetry, the intensity of light transmitted through the medium, the unscattered light, is measured. In nephelometry, the intensity of the scattered light is measured, usually, but not necessarily, at right angles to the incident light beam.	Turbidimetry,Nephelometry,Turbidimetry and Nephelometry
D010974	Platelet Aggregation	The attachment of PLATELETS to one another. This clumping together can be induced by a number of agents (e.g., THROMBIN; COLLAGEN) and is part of the mechanism leading to the formation of a THROMBUS.	Aggregation, Platelet
D010976	Platelet Count	The number of PLATELETS per unit volume in a sample of venous BLOOD.	Blood Platelet Count,Blood Platelet Number,Platelet Number,Blood Platelet Counts,Blood Platelet Numbers,Count, Blood Platelet,Count, Platelet,Counts, Blood Platelet,Counts, Platelet,Number, Blood Platelet,Number, Platelet,Numbers, Blood Platelet,Numbers, Platelet,Platelet Count, Blood,Platelet Counts,Platelet Counts, Blood,Platelet Number, Blood,Platelet Numbers,Platelet Numbers, Blood
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000244	Adenosine Diphosphate	Adenosine 5'-(trihydrogen diphosphate). An adenine nucleotide containing two phosphate groups esterified to the sugar moiety at the 5'-position.	ADP,Adenosine Pyrophosphate,Magnesium ADP,MgADP,Adenosine 5'-Pyrophosphate,5'-Pyrophosphate, Adenosine,ADP, Magnesium,Adenosine 5' Pyrophosphate,Diphosphate, Adenosine,Pyrophosphate, Adenosine
D001157	Arterial Occlusive Diseases	Pathological processes which result in the partial or complete obstruction of ARTERIES. They are characterized by greatly reduced or absence of blood flow through these vessels. They are also known as arterial insufficiency.	Arterial Obstructive Diseases,Arterial Occlusion,Arterial Obstructive Disease,Arterial Occlusions,Arterial Occlusive Disease,Disease, Arterial Obstructive,Disease, Arterial Occlusive,Obstructive Disease, Arterial,Occlusion, Arterial,Occlusive Disease, Arterial
D013924	Thrombophlebitis	Inflammation of a vein associated with a blood clot (THROMBUS).	Phlegmasia Alba Dolens,Dolens, Phlegmasia Alba,Thrombophlebitides