Coagulation assays and reagents comprising tannin or propyl gall

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

435 13, 435 2, 436 69, C12Q 100, C12Q 156, G01N 3386

Patent

active

057006342

ABSTRACT:
Novel assays and reagents for determining coagulative properties of blood or plasma are disclosed, as are agents and methods for stemming bleeding. Novel ellagic acid-based activators consist essentially of aqueous solutions of ellagic acid, phenol and suitable metal ions and give defined values for a novel platelet assay also disclosed. Inventive coagulation reagents including propyl gallate or tannin are also disclosed, as are aPTT reagents having sensitivity to heparin and Factor deficiencies far superior to prior aPTT reagents. Disclosed heparin-sensitive reagents include dextran sulfate. Also disclosed is applicant's discovery that reagents including hydroxy-substituted compounds and metal ions, heretofore known to activate Hagemann Factor, also cause platelets to release Platelet Factor 3, and a series of platelet-sensitive tests found to be enabled by this discovery. These platelet-sensitive tests include assays for platelet activity, systemic lupus, platelet reserve, which can signify type II lipoprotein defects, and for Platelet Factor 4. Disclosed methods and materials for stemming bleeding center around applicant's discovery that bleeding from bleeding sites can be stopped up to six time faster by applying to the site a hemostatic agent including effective amounts of hydroxy-substituted aromatic compound and metal ion.

REFERENCES:
patent: 3486981 (1969-12-01), Speck
patent: 4455377 (1984-06-01), Finnerty et al.
patent: 4582807 (1986-04-01), Veeraraghavan
patent: 4614730 (1986-09-01), Hansen et al.
patent: 4666831 (1987-05-01), Janoff et al.
patent: 4732860 (1988-03-01), Bartl et al.
patent: 4985354 (1991-01-01), Toyomaki et al.
patent: 5039617 (1991-08-01), McDonald et al.
patent: 5041558 (1991-08-01), Anraku
patent: 5055412 (1991-10-01), Proksch
patent: 5091304 (1992-02-01), La Duca et al.
patent: 5159069 (1992-10-01), Hirayama et al.
patent: 5362494 (1994-11-01), Zysman et al.
A. Girolami et al., "Failure of Ellagic Acid to Affect Platelet Aggregation in Normal and in Facot XII Deficient Plasma", Blut, 31, 1975, pp. 107-112.
R. E. Speck, "Accurate Assays for Platelet Factor 3", American Clinical Laboratory, 12(9), 1993, pp. 16-18.
M. H. Kroll et al., "Biochemical Mechanisms of Platelet Activation", Blood, 74(4), 1989, pp. 1181-1195.
E.W. Salzman et al., "Effect of Heparin and Heparin Fractions on Platelet Aggregation", Journal of Clinical Investigations, 65, 1980, pp. 64-73.
J.D. Sweeney et al., "The Effect of the Platelet Count on the Aggregation Response and Adenosine Triphosphate Release in an Impedance Lumi-Aggregometer", American Journal of Clinical Pathology, 89, 1988, pp. 655-659.
J.D. Sweeney et al., "Ristocetin-Induced Platelet Aggregate Formation and Adherence to the Probe of an Impedance Aggregometer", American Journal of Clinical Pathology, 93, 1990, pp. 548-551.
C.E. Isenhart, "Platelet Aggregation Studies for the Diagnosis of Heparin-Induced Thrombocytopenia", American Journal of Clinical Pathology, 1993, pp. 324-330.
Y.S. Arkel, "Evaluation of Platelet Aggregation in Disorders of Hemostasis", Medical Clinics of North America, 60, 1976, pp. 881-911.
R.M. Hardisty et al., "The Kaolin Clotting Time of Platelet Rich Plasma: A Test of Platelet Factor 3 Availability", British Journal of Haematology, 11, 1965, pp. 258-268.
E.J. Bowie, "Standardization of Platelets in the Thromboplastin Generation Test", The American Journal of Clinical Pathology, 44, 1965, pp. 673-677.
R.M. Hardisty et al., "Platelet Aggregation and the Availability of Platelet Factor 3", British Journal of Haematology, 12, 1966, pp. 764-776.
H. Sandberg et al., "A Highly Sensitive Assay of Platelet Factor 3 Using a Chromogenic Substrate", Thrombosis Research, 14, 1979, pp. 113-124.
P. E. Bock et al., "Activation of Instinsic Blood Coagulation by Ellagic Acid: Insoluble Ellagic Acid-Metal Ion Complexes Are the Activating Species", Biochemistry, 20, 1981, pp. 7258-7266.
O.D. Ratnoff et al., "Activation of Hageman Factor by Solutions of Ellagic Acid", The Journal of Laboratory and Clinical Medicine, 63, 1964, pp. 359-377.
V. Dayton et al., "Laboratory Diagnosis of Lupus Anticoagulant: Comparison of Three Methods of Antibody Neutralization", Laboratory Medicine, Jan. 1990, pp. 30-32.
T. Exner et al., "A Sensitive Test Demonstrating Lups Anticoagulant and its Behavorial Patterns", British Journal of Haematology, 40, 1978, pp. 143-151.
D.A. Triplett et al., "Laboratory Diagnosis of Lupus Inhibitors: A Comarison of the Tissue Thromboplastin Inhibition Procedure with a New Platelet Neutralization Procedure", American Journal of Clinical Pathology, 79, 1983, pp. 678-682.
J. Aznar et al., "Effect of Contact Factor (Factor XII+Factor XI) on Aggregation of Platelets", Haemostasis, 3, 1974, pp. 20-30.
G. Rouser et al., "Phospholipid Structure and Thromboplastic Activity", Biochimica Et Biophysica Acta, 28, 1958, pp. 71-80.
R.G. Mason et al., "Some Effects of a Microcrystalline Collagen Preparation on Blood", haemostasis, 3, 1974, pp. 31-45.
A. P. Bode et al., "Analysis of Platelet Factor 3 in Platelet Concentrates Stored for Transfusion", Vox Sanguinis, 51, 1986, pp. 299-305.
H.D. Reuter et al., "Untersuchengen zum Einifluss eines Wirkstoffgemisches aus Kalium-, Magnesium, Kupfer-Mangan-und Kobaltsalzen der Asparaginsaure auf die Plattchenfaktor-3-Verfugbarkeit.sup.1 ", Arzeneim-Forsch/Drug Research, 30(12), 1980, pp. 2106-2108 (Translation not provided/Abstract Only).
M. Boxer et al., "The Lupus Antecoagulant", Arthritis and Rheumatism, 19(6), 1976, pp. 1244-1246.
J. Ramanathan et al., "Correlation Between Bleeding Times and Platelet Counts in Women with Preeclampsia Undergoing Cesarean Section", Anesthesiology, 71, 1989, pp. 188-191.
D.A. Triplett, College of American Pathologists Today, 3, 1989, p. 61.
M.A. Scleider et al., "A Clinical Study of the Lupus Anticoagulant", Blood, 48, 1976, pp. 449-509.
Physician's Desk Reference, "Avitene", pp. 588-589.
G.V.R. Born et al., "The Aggregation of Blood Platelets", Journal of Physiology, 168, 1983, pp. 178-194.
J.R.A. Mitchell et al., "Platelet Clumping in Vitro", British Journal of Haematology, 10, 1964, pp. 78-93.
N.G. Ardlie et al., "Adenosine Diphosphate-induced Platelet Aggregation in Suspension of Washed Rabbit Platelets", British Journal Of Haematology, 19, 1970, pp. 7-17.
K.M. Brinkhous et al., "Macroscopic Studies of Platelet Agglutination; Nature of Thrombocyte Agglutinating Activity of Plasma", The Proceedings of Society for Experimental Biology, 98, 1958, pp. 379-383.
M.A. Packham et al., "Effect of Adenine Compounds on Platelet Aggregation", American Journal of Physiology, 217(4), 1969, pp. 1009-1017.
G.V.R. Born et al., "Effects of Inorganic Ions and of Plasma Proteins on the Aggregation of Blood Platelets by Adenosine Diphosphate", Journal of Physiology, 170, 1964, 397-414.
R.G. Mason et al., "Platelet Response to Six Agglutinating Agents: Species Similarities and Differences", Experimental and Molecular Pathology, 6, 1967, 370-381.
S. Budavari et al., The Merck Index, 11th edition, 1989, "Ellagic Acid", p. 3512.
R. Speck et al., "A Comparison of a Slide Platelet Aggregation Procedure with the Bleeding Time Test", American Clinical Laboratory, 13(1), 1994, pp. 12-13.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Coagulation assays and reagents comprising tannin or propyl gall does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Coagulation assays and reagents comprising tannin or propyl gall, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coagulation assays and reagents comprising tannin or propyl gall will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1801692

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.