摘要:
Hyperacidified tumors having high .beta.-glucuronidase activity can be treated with glucuronides with aglycones toxic to the tumor cells with great safety toward the rest of the body by first administering an alkalinizing agent in an amount sufficient to maintain the pH level of non-tumor tissues at approximately 7.4 during the glucuronide treatment. This will cause inactivation of .beta.-glucuronidase activity in the rest of the body. Novel glucuronides are disclosed the aglycones of which exert a higher toxic effect in an acid environment or is water-soluble only in an alkaline environment. Such compounds have particular utility with the above process. By substituting radioisotopes into the aglycone, diagnosis and in situ radiation therapy may be accomplished. Bacterial cells having .beta.-glucuronidase activity may also be diagnosed and treated in accordance with the present invention. A urine test is disclosed to determine the amount of free glucuronic acid in the urine which is an indication of the presence of a tumor in the body having high .beta.-glucuronidase activity.
摘要:
A surgical cutting instrument including two coaxially arranged tubular members. The first tubular member has a cutting tip and is co-axially disposed within the second tubular member, which in turn has a cutting window to expose the cutting tip to tissue and bone through the cutting window. Movement of the tubular members with respect to each other debrides soft tissue and thin bone presented to the cutting window. The second (outer) tubular member has one or more features which contribute to reduced clogging of the cutting tip as a whole.
摘要:
A surgical tissue cutting instrument having an irrigation system comprises an elongate tubular outer member having a proximal end, a distal end and an opening at the distal end, an elongate inner member rotatably disposed within the outer member and having a proximal end, a distal end and a cutting element at the distal end exposed from the opening, a handpiece mounted to the proximal ends of the outer and inner members, and an irrigation system comprising an irrigation channel composed of a first irrigation passage within the handpiece and a second irrigation passage within the thickness of the annular wall of the outer member, and a sleeve having a rearward end disposed over a front end of the handpiece and a forward end disposed over the outer member adjacent an outlet opening of the second irrigation passage near the distal end of the outer member. The sleeve is disposed over the outer member with a snug fit while allowing communication through the outlet opening of the second irrigation passage, whereby the irrigation channel is enclosed and sealed between an inlet port of the first irrigation passage and the outlet opening of the second passage. The inlet port is connectible with a source of irrigation fluid for flow through the irrigation channel to be discharged from the outlet opening near the distal end of the outer member.
摘要:
A composition containing EPA and EHA, preferably derived from fish oil, in combination with at least one of oleuropein, allicin, and policosanol having anti-inflammatory, anti-thrombotic, immunomodulatory activity as well as activity to lower triglycerides and low density lipoprotein, to increase high density lipoprotein, and to lower both systolic and diastolic blood pressure.
摘要:
A system for cleaning air wherein the air to be cleaned is bubbled up through an aqueous phase and an organic phase. The air is bubbled upwardly through the liquid to take advantage of the weight of the liquid to compress the gas, thereby increasing the solubility of the gas in the liquid. Because of specific gravity, the aqueous phase is generally at the bottom of at least one cylinder or container, and the organic phase is generally on top of the aqueous phase. Gases are removed either continuously or periodically to ensure that there are adequate reagents in the aqueous and organic phases, so that the reagents therein can be replaced as needed. There is no limit to the number of cylinders that can be used, depending upon the impurity and thus the amount of reagents to be used in treating the air.
摘要:
A primarily cylindrical beverage cooling despiser (10), devised of two separate portions, by which collectively make up the exterior and interior. The upper portion consists of two separate chambers, one interior chamber (14) for containment of ice for cooling, and one exterior chamber (12) for containment of beverage. Both chambers though mutually exclusive of each other, once filled with their intended containment by virtue of their connective proximity to one another associate a thermal communication with one another resulting in the cooling of contained beverage. Additionally the upper portion includes a lid (56), comprised as a common two-in-one combination lid. The bottom portion of the exterior is represented as the base (16), which supports the upper portions contents and additionally supports a tap/faucet (18), and tap/faucet handle (20) arrangement for the controlled release of the contained beverage content.
摘要:
A system for machine- and human-mediated exchange of information, provided in response to receipt of an information query. The received query is first assigned to a selected category or classification, by a human classifier or through automatic parsing of the statement of the query by a computer. A search for a positive response to the query is performed automatically, using an information repository (including, but not limited to, one or more databases) that corresponds to the query classification. If the repository provides no positive response, the system allows a group of one or more human responders having relevant information to bid on providing a positive response to the query. A responder can also route the query to other responders. Optionally, a responder cost bid is compared with a user-supplied upper limit on cost. If a bid is accepted and the responder is selected, the responder provides a positive response to the query. Each positive response is provided for review by the source of the query, and the query source may modify the query in response to information received. Optionally, one or more time intervals may be specified for response to a query. Optionally, an information seeker can gain access to and use a query submitted by, and a pre-existing query response received by, a preceding information seeker and may engage in a chat session with one or more responders and with other information seekers.
摘要:
Tumor cells which have .beta.-glucuronidase and tyrosinase activity are selectively treated by administration of a conjugate of a cytotoxic compound which is a substrate for tyrosinase and glucuronic acid or a pharmaceutically acceptable salt or ester thereof particularly the methyl-triacetylated form of glucuronic acid. Among the cytotoxic phenolic compounds which are substrates for tyrosinase which can be used are 4-hydroxyanisole, butylated hydroxyanisole, L-3,4-dihydroxy-phenylalanine, dopamine (3,4-dihydroxyphenethylamine), terbutylcatechol, hydroquinone, resorcinol, 6-hydroxydopa (3,4,6-trihydeoxyphenylalanine) and methyl gallate.The efficacy of the treatment is enhanced by also administering a compound that inhibits the action of glutathione reductase.
摘要:
The metabolism of tumor cells which have .beta.-glucuronidase activity is inhibited by administering to a patient a conjugate of glucuronic acid and a thiocarbamate compound of the formula: ##STR1## wherein R.sup.1 and R.sup.2 are selected from the group consisting of C.sub.1 -C.sub.6 alkyl and C.sub.1 -C.sub.6 cycloaliphatic, and M is selected from the group consisting of hydrogen, an electropositive, ionically bonded metal, and the radical ##STR2## and R.sup.3 and R.sup.4 are selected from the group consisting of C.sub.1 -C.sub.6 alkyl and C.sub.1 -C.sub.6 cycloaliphatic groups.
摘要:
A composition for therapy of tumors having high tyrosinase activity contains the reaction product of penicillamine with a cytotoxic aldehyde, or pharmaceutically acceptable salts or esters thereof, and a pharmaceutically acceptable vehicle. The preferred compounds are 5,5-dimethyl-2-phenyl-4-thiazolidine carboxylic acid or 5,5-dimethyl-2-(2-hydroxyphenyl)-4-thiazolidine carboxylic acid, or pharmaceutically acceptable salts or esters thereof. Treatment preferably comprises an intra-arterial drip. Diagnosis of tumors suitable for treatment by means of these compositions may be accomplished by administering a radioactive copper salt and scanning for accumulations of radioactivity. This will indicate sites of high tyrosinase activity.