Results 211 to 220 of about 9,310 (270)

Total Synthesis of the Ristocetin Aglycon

Journal of the American Chemical Society, 2004
The first total synthesis of the ristocetin aglycon is described employing a modular and highly convergent strategy. An effective 12-step (12% overall) synthesis of the ABCD ring system 3 from its amino acid subunits sequentially features an intramolecular aromatic nucleophilic substitution reaction for formation of the diaryl ether and closure of the ...
Dale L Boger
exaly   +3 more sources

Ristocetin and Ristocetin-Neomycin for Preoperative Preparation of the Colon

Archives of Surgery, 1958
Interest in antibacterial agents for preoperative preparation of the bowel has stimulated us to evaluate new agents by standardized techniques which permit comparisons of different agents.1,2,7Ristocetin, isolated from the actinomycete Nocardia lurida recovered from a Colorado soil sample, has been reported to be particularly effective against ...
I, COHN, A B, LONGACRE
openaire   +2 more sources

On the interaction between ristocetin and the ristocetin cofactor (RCOF)

Thrombosis Research, 1977
Abstract The induction of platelet aggregation by the antibiotic ristocet in requires the participation of a plasma factor, Ristocetin CoFactor (RCoF), which is deficient in patients with vonWillebrand's disease. Although it has been shown that ristocetin precipitates fibrinogen, its interaction with RCoF remains obscure.
M, Floyd, W, Burns, D, Green
openaire   +2 more sources

Evaluation of Ristocetin–Willebrand Factor Assay and Ristocetin-induced Platelet Aggregation

American Journal of Clinical Pathology, 1975
Normal subjects, patients with various bleeding disorders, and patients with von Willebrand's disease were studied. All patients with von Willebrand's disease had decreased levels of ristocetin-Willebrand factor (range, 0 to 41%) as compared with all other subjects (range, 79 to 202%). Ristocetin-induced platelet aggregation of platelet-rich plasma was
J D, Olson   +4 more
openaire   +2 more sources

Actions of ristocetin on platelets

American Journal of Hematology, 1976
AbstractThe absence of ristocetin‐induced platelet aggregation appears to correlate with the platelet defect in von Willebrand's disease, suggesting that this reaction mimics a physiological process. The effect of ristocetin on plasma and on the residual levels of the von Willebrand factor (vWF), Factor VIII procoagulant activity, and Factor VIII ...
J, Koutts, L, Stott, B G, Firkin
openaire   +2 more sources

Ristocetin-induced aggregation of canine platelets

Thrombosis Research, 1980
Abstract Both canine plasma and canine platelets have been reported to be unreactive in the ristocetin-induced platelet aggregation reaction that is commonly used to study the platelet-von Willebrand factor interaction. Because canine plasma was recently found to have ristocetin cofactor (RCF) activity with human platelets, we studied the RCF ...
L A, Leis   +3 more
openaire   +2 more sources

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