A method of inhibiting thrombus formation in a mammalian subject. The method involves administering to the subject a therapeutically effective dose of a calix(n)arene compound derivatized, at its ring positions meta to the bridge attachments to the ring, with polar substituents having terminal sulfonate groups, including esters and amides which are cleavable in vivo.
This application is a Continuation-in-Part of U.S. patent application for "Anticoagulant Properties of Macrocyclic Compounds and Method of Treatment" Ser. No. 07/792,135, filed Nov. 13, 1991, now abandoned, which is a Continuation-in-Part of U.S. patent applications for "Macrocyclic Anti-Viral Compound and Method" Ser. No 07/647,720, filed Jan. 29, 1991, now U.S. Pat. No. 5,196,452, and for "Method of Treating Herpes Simplex Virus Infection", Ser. No. 647,469 (Allowed), filed Jan. 29, 1991.
A method for assaying biological specimens for substances contained in the components of each specimen by the use of one or more kinds of calixarenes; and a reagent comprising one or more kinds of calixarenes. The method utilizes complexes formed by calixarenes and the components of biological specimens, and makes it possible to assay biological specimens for substances contained in the components of each specimen, for example, for cholesterol contained in high-density lipoprotein (HDL), without preliminary separation from the other components of the biological specimen. The method can be conducted by easy and simple operations and lessen measurement errors or problems caused by man, and permits continuous measurement with general-purpose automatic analyzing apparatuses and multi-channel measurement together with other test items.
The present invention relates to heparin-binding calixarene compounds of general Formula (I) in which R, R.sub.1, L and n have the meanings indicated in the description and their use in the biomedical field.
The synthesis of thiophene based conducting polymer molecular actuators, exhibiting electrically triggered molecular conformational transitions is reported. Actuation is believed to be the result of conformational rearrangement of the polymer backbone at the molecular level, not simply ion intercalation in the bulk polymer chain upon electrochemical activation. Molecular actuation results from .pi.--.pi. stacking of thiophene oligomers upon oxidation, producing a reversible molecular displacement that leads to surprising material properties, such as electrically controllable porosity and large strains. The existence of active molecular conformational changes is supported by in situ electrochemical data. Single molecule techniques have been used to characterize the molecular actuators.
The anti-angiogenic functions of a polysulfated, cyclic compound, ST104P, were investigated. ST104P exhibited excellent water solubility and low cytotoxicity to endothelial cells. ST104P potently inhibited the secretion of matrix metalloproteinase (MMPs) by endothelial cells. Moreover, ST104 also perturbed the migration and tube formation of endothelial cells. Application of ST104P abolished the neovascularization in chicken choroiallantoic membrane (CAM) in a dose-dependent manner. Besides, repeated administration of ST104P into Lewis lung carcinoma resulted in delayed tumor growth and prolonged the life span of tumor-bearing mice. These results indicated that ST104P inhibited angiogenesis and may hold promises for treatment of cancer and diseases or conditions caused by excessive angiogenesis.
Provided are compositions and methods for accurate determination of the concentration of anticoagulant in a sample such as a blood or plasma sample. The compositions can contain a Factor X compound and Factor V compound, and additional components as well. Methods for performing the assay include one-step methods in which a sample is added to a coagulation assay composition, and time is monitored from the point of adding the sample and coagulation assay composition to an endpoint, such as clot formation.
