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A TEST SYSTEM FOR RAPID SCREENING OF PATIENTS PRIOR TO INITIATION OF THROMBOLYTIC THERAPY WILL BE DEVELOPED. THIS SYSTEM WILL BE BASED ON A NOVEL DRY REAGENT ASSAY TECHNOLOGY WHICH RECENTLY HAS BEEN APPLIED SUCCESSFULLY TO PT AND ACTIVATED PTT TESTS. INTRODUCTION OF A RAPID CONVENIENT TEST OF PATIENT (OR CLOT) LYTIC POTENTIAL FOR USE ON A DECENTRALIZED BASIS COULD PROVIDE EARLY INDICATION OF LIKEL ...

USE OF NUCLEOSIDE PHOSPHATES AS ANTITUMOR AND ANTIVIRAL AGENTS HAS BEEN LIMITED BY THEIR INABILITY TO PENETRATE CELL MEMBRANES AS WELL AS THEIR HIGH SUSCEPTIBILITY TO ENZYMES SUCH AS PHOSPHATASES, NUCLEOTIDASES, ETC. MODIFICATION OF THE PHOSPHATE GROUP (BY REPLACING ONE OF THE NONBRIDGING OXYGENS WITH A BORANE GROUP) MAY PROVIDE BOTH THE MEMBRANE PERMEABILITY TO THESE COMPOUNDS AND THE STABILITY ( ...

NEUTRON CAPTURE THERAPY IS A VERY PROMISING THERAPY FOR CERTAIN TUMORS, SUCH AS GLIOMAS AND MELANOMAS. SEVERAL NUCLEI HAVE HIGH CROSS SECTIONS FOR THERMAL NEUTRONS, OF WHICH BORON-10 ((10)B) AND GADOLINIUM-157 ((157)GD) HAVE BEEN SHOWN TO BE VERY PROMISING. (10)B HAS A HIGH CROSS SECTION FOR THERMAL NEUTRONS AND A VERY VERSATILE CHEMISTRY. (157)GD HAS THE HIGHEST CROSS SECTION FOR THERMAL NEUTRONS ...

The main objective of the research is to develop a new class of topoisomerase II (Topo II) inhibitors as antineoplastic agents. In preliminary studies, heterocyclic amine-carboxyboranes have been shown to possess cytotoxic activity against a number of murine and human tumor tissue culture lines, e. g. P388, L1210, Tmolt3, HeLa-S3, lung bronchogenic, KB nasopharynx, glioma, and osteosarcoma. These ...

We will design and synthesize novel nucleic acid base derivatives containing cyanoborane group attached to a pyridine-type nitrogen atom of the purine or the pyrimidine cycle. The cyanoboronated bases may be designed to be more membrane soluble than the respective 2'- deoxyribonucleosides of known cytotoxic activities. In living organisms, these base derivatives may be converted to the 5'-nucleoti ...

A major problem with the use of nucleoside phosphates as antiviral and antitumor drugs has been their inability to penetrate cell membranes. Additionally, nucleoside phosphates are susceptible to phosphatases and nucleases, which reduce their in vivo life time. Replacement of the charged phosphate group with uncharged boron containing moieties should not only enhance their cell permeability, but t ...

A new approach to signal detection and classification is applied to the problem of ASW and torpedo defense for shallow-water environments. The approach is particularly appropriate for applications where the statistics of the signal and the noise are unknown and highly variable. The primary goal is a significant improvement in the detection capability of sonar for ASW in coastal shallow water envir ...