Abstract: In accordance with the present invention a method of preserving organs using a perfusate or storage solution containing a specific synthetic hydroxyethyl starch in place of human serum albumin is disclosed. A suitable composition is provided. Disclosed is a cold-storage solution and perfusate that has provided 72 hour preservation for the pancreas, 48 hour storage for the kidney and at least 24 hour preservation for the liver.
Abstract: The present invention relates to new compositions for the preservation of organs prior to implantation comprising hydroxyethyl starch substantially free of ethylene glycol, ethylene chlorohydrin and acetone in a pharmaceutically acceptable organ perfusate.
Abstract: The invention provides a process for preparing optically-active 2,2'-dihydroxy-1,1'-binaphthyl by subjecting esters of (+) 2,2'-dihydroxy-1,1'-binaphthyl to the enantioselective hydrolytic enzymatic action of microorganisms of the orders Moniliales and Mucorales.
Abstract: This invention is directed to new 24-homo-vitamin D compounds, to methods for preparing the same and novel intermediate compounds.The compounds are characterized by vitamin D-like activity of the order of 1.alpha.,25-dihydroxyvitamin D.sub.3, the recognized circulating hormonal form of vitamin D, or various of its derivatives and by greater antineoplastic activity than such compounds but without their attendant calcemic activity. The compounds are useful in the treatment of disease states characterized by calcium-phosphorous imbalances and where antineoplastic activity is indicated.
Type:
Grant
Filed:
February 28, 1986
Date of Patent:
August 15, 1989
Assignee:
Wisconsin Alumni Research Foundation
Inventors:
Hector F. DeLuca, Nobuo Ikekawa, Yoko Tanaka
Abstract: This invention is directed to new 26-homo-vitamin D compounds, to methods for preparing the same and novel intermediate compounds.The compounds are characterized by vitamin D-like activity of the order of 1.alpha.,25-dihydroxyvitamin D.sub.3, the recognized circulating hormonal form of vitamin D, or various of its derivatives and by greater antineoplastic activity than such compounds but without their attendant calcemic activity. The compounds are useful in the treatment of disease states characterized by calcium-phosphorous imbalances and where antineoplastic activity is indicated.
Type:
Grant
Filed:
March 3, 1986
Date of Patent:
July 25, 1989
Assignee:
Wisconsin Alumni Research Foundation
Inventors:
Hector F. DeLuca, Nobuo Ikekawa, Yoko Tanaka
Abstract: The invention provides a method for inducing the differentiation of malignant cells utilizing certain seco-sterol compounds, such as the differentiation of leukemia cells to normal macrophages and thereby affords a method for treating leukemic disorders.
Type:
Grant
Filed:
April 30, 1987
Date of Patent:
January 24, 1989
Assignee:
Wisconsin Alumni Research Foundation
Inventors:
Hector F. DeLuca, Heinrich K. Schnoes, Wan F. Lau
Abstract: The present invention relates to new compositions for the preservation of organs prior to implantation comprising hydroxyethyl starch substantially free of ethylene glycol, ethylene chlorohydrin and acetone in a pharmaceutically acceptable organ perfusate.
Abstract: The invention is directed to the preparation of hydroxylated compounds of the vitamin D.sub.2 series and specifically to a process for synthesizing 1.alpha.,25-dihydroxyvitamin D.sub.2, 1.beta.,25-dihydroxyvitamin D.sub.2, their corresponding 5,6-trans isomers and the C-24 epimers of these compounds.The hydroxylated vitamin D.sub.2 compounds obtained exhibit vitamin D-like activity and can be substituted for vitamin D.sub.3 or various of its known metabolites where such compounds are applied.
Type:
Grant
Filed:
November 7, 1983
Date of Patent:
September 6, 1988
Assignee:
Wisconsin Alumni Research Foundation
Inventors:
Hector F. DeLuca, Heinrich K. Schnoes, Rafal R. Sicinski, Yoko Tanaka
Abstract: The invention relates to new coenzyme A and N-hydroxysuccinimidyl esters of all-trans- and 13-cis-retinoic acid and to methods for preparing the same. A new method for preparing all-trans-retinoic acid anhydride is also disclosed.
Type:
Grant
Filed:
June 2, 1986
Date of Patent:
July 12, 1988
Assignee:
Wisconsin Alumni Research Foundation
Inventors:
Hector F. DeLuca, Andrzej Kutner, Heinrich K. Schnoes
Abstract: The invention provides a method for enhancing the degradation of the side chain of sterols possessing branched chains at C-24 utilizing microbiological means by including an exogenous source of bicarbonate ion (HCO.sub.3 --) in the medium in which the degradation is being carried out.
Abstract: The invention relates to ring A-diol units suitable for synthesizing 1.alpha.-hydroxyvitamin D compounds by subsequent condensation with appropriate .sup.C /.sub.D -ring fragments and to methods for preparing such ring A-diol units.
Type:
Grant
Filed:
June 10, 1985
Date of Patent:
July 5, 1988
Assignee:
Wisconsin Alumni Research Foundation
Inventors:
Hector F. DeLuca, Heinrich K. Schnoes, Seok H. Lee
Abstract: This invention relates to a process for resolving DL-carnitine by contacting a racemic mixture of DL-carnitine with a microorganism which preferentially metabolizes D-carnitine and permits accumulation of L-carnitine in the reaction medium and to novel strains of such microorganisms and mutants of such strain.
Abstract: Novel 1-hydroxylated vitamin D compounds containing a 22, 23-cis double bond in the side chain are provided. The compounds are characterized by an unexpectedly high binding affinity for the protein receptor forecasting their ready applicability as substitutes for vitamin D or various of its metabolites in their various known applications and in the treatment of various metabolic bone diseases.
Type:
Grant
Filed:
November 4, 1985
Date of Patent:
January 12, 1988
Assignee:
Wisconsin Alumini Research Foundation
Inventors:
Hector F. DeLuca, Heinrich K. Schnoes, Rafal R. Sicinski, Yoko Tanaka
Abstract: The invention provides, as novel vitamin D derivatives, analogs of vitamin D.sub.2 compounds which lack the 24-methyl substituent and are identified as 1.alpha.-hydroxy-28-norvitamin D.sub.2 and 1.alpha.,25-dihydroxy-28-norvitamin D.sub.2.The compounds of the invention are characterized by unexpectedly high vitamin D-like activity as well as a novel activity pattern. Because of such activity they would find ready application as substitutes for vitamin D or various of the known vitamin D metabolites in their various application for the treatment of calcium disorders.
Type:
Grant
Filed:
October 3, 1985
Date of Patent:
January 12, 1988
Assignee:
Wisconsin Alumni Research Foundation
Inventors:
Hector F. DeLuca, Heinrich K. Schnoes, Rafal R. Sicinski, Yoko Tanaka
Abstract: This invention relates to a method for enhancing cell differentiation in malignant cells by exposing the cells to a 1.alpha.-hydroxylated vitamin D derivative characterized by a 17-side chain greater in length than the cholesterol or ergosterol side chains.The method finds application in the treatment of neoplastic diseases including leukemoid diseases and, specifically, leukemia.
Type:
Grant
Filed:
May 30, 1985
Date of Patent:
January 5, 1988
Assignee:
Howard W. Bremer
Inventors:
Hector F. DeLuca, Heinrich K. Schnoes, Nobuo Ikekawa, Voula Ostrem
Abstract: The invention provides a novel vitamin D derivative, 1.alpha.,25-dihydroxy-22Z-dehydrovitamin D.sub.2.The compound is characterized by unexpectedly high ability to raise serum calcium levels. The compound could therefore, find ready application as a substitute for vitamin D or its metabolites in the treatment of metabolic bone diseases or in other of their known applications.
Type:
Grant
Filed:
November 4, 1985
Date of Patent:
August 25, 1987
Assignee:
Wisconsin Alumni Research Foundation
Inventors:
Hector F. DeLuca, Heinrich K. Schnoes, Rafal R. Sicinski, Yoko Tanaka
Abstract: Patterned structures of submicron dimension formed of supported or unsupported amorphous metals having submicron feature sizes characterized by etching behavior sufficient to allow delineation of sharp edges and smooth flat flanks, resistance to time-dependent dimensional changes caused by creep, flow, in-diffusion of unwanted impurities, out-diffusion of constituent atoms, void formation, grain growth or phase separation and resistance to phase transformations or compound formation.
Abstract: The invention provides a new derivative of vitamin D.sub.3, 26,26,26,27,27-pentafluoro-1.alpha.-hydroxy-27-methoxy-cholecalciferol and a process for preparing the same.The compound is characterized by some vitamin D-like activity except that it exhibits negligible activity in mobilizing bone. This characteristic indicates that the compound would find ready application in the treatment of disease or physiological states which evince loss of bone mass and application in other situations where metabolic calcium imbalances are found.
Type:
Grant
Filed:
September 16, 1985
Date of Patent:
October 28, 1986
Assignee:
Wisconsin Alumni Research Foundation
Inventors:
Hector F. DeLuca, Nobuo Ikekawa, Yoshiro Kobayashi, Yoko Tanaka
Abstract: The invention provides new derivatives of vitamin D.sub.3, 2.alpha.-fluorovitamin D.sub.3 and the acylates thereof.The compounds are characterized by vitamin D-like activity in their ability to increase intestinal calcium transport and serum calcium indicating their ready application as substitutes for vitamin D.
Type:
Grant
Filed:
March 20, 1985
Date of Patent:
June 10, 1986
Assignee:
Wisconsin Alumni Research Foundation
Inventors:
Hector F. DeLuca, Yoko Tanaka, Nobuo Ikekawa, Yoshiro Kobayashi