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Articles 8611 - 8640 of 8642

Full-Text Articles in Medicine and Health Sciences

Testing The Integrity Of Liquid Containing Hermetically Sealed Containers By The Use Of Radioactive Markers, Patrick P. Deluca, L. David Butler May 1981

Testing The Integrity Of Liquid Containing Hermetically Sealed Containers By The Use Of Radioactive Markers, Patrick P. Deluca, L. David Butler

Pharmaceutical Sciences Faculty Patents

A method for detecting leaky ampules filled with a liquid such as a parenteral solution. The ampules to be tested are immersed in a solution containing a short-lived radionuclide, and a pressure differential is imposed between the solution containing the radionuclide and the parenteral solution or other liquid contained in the ampules. The ampules are then removed from solution, decontaminated to remove any solution adhering to the outer surface and pores thereof, dried, and finally examined for electromagnetic radiation, preferably gamma radiation, emanating from the interior of the ampules which would indicate a leaky condition thereof.


Synthesis And Use Of Diagnostic Radio-Pharmaceuticals Comprising Radioactive Isotopes Of Bromine With Dyes, John W. Triplett, Randall B. Smith Mar 1981

Synthesis And Use Of Diagnostic Radio-Pharmaceuticals Comprising Radioactive Isotopes Of Bromine With Dyes, John W. Triplett, Randall B. Smith

Pharmaceutical Sciences Faculty Patents

A process for preparing bromine-containing dyes labelled with gamma-emitting isotopes of bromine, and the product thereof which is useful as an imaging agent for the hepato-biliary system, particularly in dynamic imaging methods. The dyes prepared are from the class of triarylmethane dyes, and also from the phthalein subclass of the class of xanthene dyes, and the labelling thereof is effected with 76Br, 77 Br or 82 Br. The process for preparing these dyes involves reacting the non-brominated dye precursor with either 76 Br2, 77 Br2 or 82 Br2. This is a substitution type of …


Drugs And The Performance Horse, Thomas Tobin Jan 1981

Drugs And The Performance Horse, Thomas Tobin

Veterinary Science Books

This book presents an unprecedented account of the actions, effects and consequences of drug use in performance horses. Written for horsemen by a veterinarian and world authority on equine drugs, it deals with all classes, types, and uses of drugs. Professor Tobin describes how the drugs act, how they influence performance, and the problems they may cause. He explains the drug testing process and presents the best information available on the clearance times for drugs in horses. The text is written in plain language and with a touch of humor.


Derivative Of Aspirin, Anwar A. Hussain, James E. Truelove, Harry B. Kostenbauder Dec 1980

Derivative Of Aspirin, Anwar A. Hussain, James E. Truelove, Harry B. Kostenbauder

Pharmaceutical Sciences Faculty Patents

There is provided a novel derivative of 2-acetoxybenzoic acid, i.e., 1-O-(2'-acetoxy)benzoyl-α-D-2-deoxyglucopyranose, which is suitable for the attainment of high 2-acetoxybenzoic acid blood levels without irritation of the gastrointestinal lining.


Derivatives Of Aspirin, Anwar A. Hussain, James E. Truelove, Harry B. Kostenbauder Dec 1980

Derivatives Of Aspirin, Anwar A. Hussain, James E. Truelove, Harry B. Kostenbauder

Pharmaceutical Sciences Faculty Patents

There are provided novel derivatives of 2-acetoxybenzoic acid, which are substituted 1-0-(2'acetoxy)benzoyl-α-D-2-deoxyglucopyranose derivatives and are suitable for the attainment of high 2-acetoxybenzoic acid blood levels without irritation of the gastrointestinal lining.


Tobacco Smoke Filter Material, George A. Digenis, Manvendra B. Shambhu May 1980

Tobacco Smoke Filter Material, George A. Digenis, Manvendra B. Shambhu

Pharmaceutical Sciences Faculty Patents

A tobacco smoke filter comprising a imidazole-containing polymer, the imidazole groups being chemically bound to said polymer.


An Avoidance Response Bioassay For Aquatic Pollutants, Jeffrey A. Black, Wesley J. Birge Apr 1980

An Avoidance Response Bioassay For Aquatic Pollutants, Jeffrey A. Black, Wesley J. Birge

KWRRI Research Reports

Avoidance response bioassays were conducted with eight aquatic contaminants, including cadmium, copper, mercury, zinc, chloroform, dioctyl phthalate (DOP), trisodium nitrilotriacetic acid (NTA), and phenol. Tests were performed in a dual-channel fluviarium system, and the toxicant injection procedure used provided good regulation of exposure concentrations. Juvenile stages of largemouth bass (Micropterus salmoides), bluegill sunfish (Lepomis macrochirus), and rainbow trout (Salmo gairdneri), and tadpoles of the American toad (Bufo americanus) proved to be suitable animals for evaluating avoidance or attraction responses. The trout was the most sensitive species tested.

Avoidance was significant in tests …


Effects Of Organic Compounds On Amphibian Reproduction, Wesley J. Birge, Jeffrey A. Black, Robert A. Kuehne Jan 1980

Effects Of Organic Compounds On Amphibian Reproduction, Wesley J. Birge, Jeffrey A. Black, Robert A. Kuehne

KWRRI Research Reports

Aquatic toxicity tests were conducted with atrazine, carbon tetrachloride, chloroform, methylene chloride, trisodium nitrilotriacetic acid (NTA), and phenol. Each compound was administered to developmental stages of three to five amphibian species. Exposure was initiated at fertilization and maintained through 4 days posthatching. Test responses included lethality and teratogenesis. Different amphibian species exhibited varying degrees of tolerance to the selected compounds. Greatest tolerance usually was observed for the more broadly adapted semi-aquatic and terrestrial species (e.g., Bufo americanus, Bufo fowleri). The more sensitive amphibians usually included those species which normally are restricted to aquatic or moist habitats (e.g., Rana …


Role Of A Nonimmunoglobulin Cell Surface Determinant In The Activation Of B Lymphocytes By Thymus-Independent Antigens*, Subbarao Bondada, Donald E. Mosier, Aftab Ahmed, James J. Mond, Irwin Scher, William E. Paul Jan 1979

Role Of A Nonimmunoglobulin Cell Surface Determinant In The Activation Of B Lymphocytes By Thymus-Independent Antigens*, Subbarao Bondada, Donald E. Mosier, Aftab Ahmed, James J. Mond, Irwin Scher, William E. Paul

Microbiology, Immunology, and Molecular Genetics Faculty Publications

Lyb 5 is a B-cell alloantigen which is expressed on 50-60% of B cells. It was defined originally on the basis of cytotoxicity. We have described a new reactivity within the anti-Lyb 5 serum on the basis of selective inhibition of antibody responses in vitro by this antiserum in the absence of complement. This inhibitory activity of anti-Lyb 5.1 serum appears to be due to recognition of antigenic determinants different from the prototype antigens detected in the cytotoxicity assay. Anti-Lyb 5 serum incorporated into spleen cell cultures selectively inhibits antibody responses to a class of thymus-independent antigens (TI-2) previously characterized …


Tritium (3h) Radiolabeling Of Protein A And Antibody To High Specific Activity: Application To Cell Surface Antigen Radioimmunoassays, Ronald L. Wilder, Catherine C. Yuen, Subbarao Bondada, Virgil L. Woods, Cornelius B. Alexander, Rose G. Mage Jan 1979

Tritium (3h) Radiolabeling Of Protein A And Antibody To High Specific Activity: Application To Cell Surface Antigen Radioimmunoassays, Ronald L. Wilder, Catherine C. Yuen, Subbarao Bondada, Virgil L. Woods, Cornelius B. Alexander, Rose G. Mage

Microbiology, Immunology, and Molecular Genetics Faculty Publications

Staphylococcal protein A and several different immunoglobulins have been radio-labeled to high specific activities (> 106 cpm/pg) by reductive methylation with tritiated (3H) sodium borohydride. The proteins retain excellent functional and antigenic properties. The utility of these reagents in a variety of assays for cell surface antigens is illustrated. The results indicate that this radiolabeling procedure may become the method of choice for many cell surface and solution immunoassays.


Radiodiagnostic Agent, George A. Digenis, Manvendra B. Shambhu, Michael C. Theodorakis Sep 1978

Radiodiagnostic Agent, George A. Digenis, Manvendra B. Shambhu, Michael C. Theodorakis

Pharmaceutical Sciences Faculty Patents

A radiodiagnostic agent comprising a solid, insoluble nontoxic synthetic resin, such as polystyrene, bearing a detectable amount of technetium 99m thereon. This agent is useful for analyzing the gastrointestinal tract, for example, for gastric emptying time, by means of a gamma camera.


Inactivated Equine Rhinopneumonitis Virus Vaccine And Use Thereof, John T. Bryans Apr 1978

Inactivated Equine Rhinopneumonitis Virus Vaccine And Use Thereof, John T. Bryans

Veterinary Science Faculty Patents

An inactivated viral vaccine for protecting horses against disease caused by equine rhinopneumonitis virus is prepared by propagating an equine rhinopneumonitis virus in a susceptible, cloned, diploid equine cell line, harvesting the resulting virus in a serum-free medium, inactivating the virus and neutralizing the inactivating agent, concentrating the virus, and adding an immunological adjuvant thereto. A vaccination program to protect horses against the equine rhinopneumonitis virus is also disclosed.


Inactivation Of Brain Hexokinase By An Adenosine 5'-Triphosphate Analog, Subbarao Bondada, Umakant W. Kenkare Jan 1977

Inactivation Of Brain Hexokinase By An Adenosine 5'-Triphosphate Analog, Subbarao Bondada, Umakant W. Kenkare

Microbiology, Immunology, and Molecular Genetics Faculty Publications

An analog of ATP, 6-mercapto-9+nribofuranosylpurine 5’-triphosphate (SH-TP), functions as a phosphoryl donor for the reaction catalyzed by hexokinase. Incubation of the enzyme with millimolar concentrations of this reagent led to its rapid inactivation. However, the corresponding monophosphate derivative of this reagent was much less effective. A plot of the initial rate of inactivation versus the concentration of SH-TP exhibited saturation, suggesting the formation of a reversible complex between the enzyme and SH-TP prior to the inactivation reaction. The dissociation constant of this enzyme-inhibitor complex was the same as the K, of this reagent with respect to hexokinase in the phosphoryl …


Reaction Of Brain Hexokinase With Tetranitromethane: Oxidation Of Essential Thiol Groups, Subbarao Bondada, Umakant W. Kenkare Jan 1977

Reaction Of Brain Hexokinase With Tetranitromethane: Oxidation Of Essential Thiol Groups, Subbarao Bondada, Umakant W. Kenkare

Microbiology, Immunology, and Molecular Genetics Faculty Publications

Treatment of bovine brain mitochondrial hexokinase with a fivefold molar excess of tetranitromethane (TNM) at pH 8.0 results in a complete loss of activity of the enzyme. Spectral measurements and amino acid analysis showed that only cysteinyl residues were modified by TNM under these conditions. The products of the reaction of TNM with the enzyme were cysteic acid and disulfides as found by amino acid analysis of the carboxymethylated hexokinase. Failure of 2-mercaptoethanol to reverse the effect of TNM suggested that the thiol group that is oxidized to cysteic acid is the one essential for enzyme activity. Substrates glucose and …


Some Of The Effects Of Domestic Sewage Discharged Into Hickman And Jessamine Creeks In Jessamine County, Kentucky, Henry H. Howell, Mike W. Jones, Robert A. Kuehne Feb 1976

Some Of The Effects Of Domestic Sewage Discharged Into Hickman And Jessamine Creeks In Jessamine County, Kentucky, Henry H. Howell, Mike W. Jones, Robert A. Kuehne

KWRRI Research Reports

A 6-week study was made in the summer of 1971 as an initial effort to determine the extent of pollution that the three sewage disposal plants in Jessamine County, Kentucky, are contributing to its streams. With the rapid population increase in Lexington and nearby municipalities, this study should furnish a basis of comparison for future investigations. Eighteen collecting stations were established in riffle areas of Hickman and Jessamine Creeks, and coliform bacteria, macro-invertebrate populations, fish populations and chemical water quality of each riffle area were studied.

Hickman Creek's flow was augmented by approximately 3,100,000 gallons/day (11,735 -m3/day) from …


Effects Of A Marathon Group On Self-Actualization And Attitudes Toward Women, Peter R. Kilmann, Diane R. Follingstad, M. Gail Price, Kay F. Rowland, Elizabeth A. Robinson Jan 1976

Effects Of A Marathon Group On Self-Actualization And Attitudes Toward Women, Peter R. Kilmann, Diane R. Follingstad, M. Gail Price, Kay F. Rowland, Elizabeth A. Robinson

CRVAW Faculty Journal Articles

No abstract provided.


A Review Of The Pharmacology, Pharmacokinetics And Behavioral Effects Of Procaine In Thoroughbred Horses, Thomas Tobin, J. W. Blake Jan 1976

A Review Of The Pharmacology, Pharmacokinetics And Behavioral Effects Of Procaine In Thoroughbred Horses, Thomas Tobin, J. W. Blake

Maxwell H. Gluck Equine Research Center Faculty Publications

Since procaine has both local anaesthetic and central stimulant actions its presence in the blood or urine of racing horses is forbidden. After rapid intravenous injection of procaine HC1 (2.5 mg/Kg) in thoroughbred mares plasma levels of this drug fell rapidly (t 1/2 alpha = 5 min) and then more slowly (t 1/2 beta = 50.2 min). These kinetics were well fitted by a two compartment open model (Model I). This model gave an apparent Vdbeta for procaine in the horse of about 3,500 litres. Since procaine was about 45% bound to equine plasma protein this gives a true Vdbeta …


The Gas-Liquid Chromatograph And The Electron Capture Detection In Equine Drug Testing., J. W. Blake, Thomas Tobin Jan 1976

The Gas-Liquid Chromatograph And The Electron Capture Detection In Equine Drug Testing., J. W. Blake, Thomas Tobin

Maxwell H. Gluck Equine Research Center Faculty Publications

Three gas-liquid chromatographic (G.L.C.) procedures discussed have been designed around the four "esses" of detection tests--speed, sensitivity, simplicity, and specificity. These techniques are admirably applicable to the very low plasma drug levels encountered in blood testing under pre-race conditions. The methods are equally applicable to post-race testing procedures, where both blood and urine samples are tested. Drugs can only rarely be detected by the electron capture detector (E.C.D.) without a prior derivatization step, which conveys to the drug(s) high electron affinity. Because of broad applicability, two derivatizing agents, heptafluorobutyric (HFBA) and pentafluorpropionic (PFPA) anhydrides are employed. The three techniques, allowing …


A Study Of Naturally Occurring Algicides Produced By Freshwater Algae, Denny O. Harris, Harry D. Caldwell Dec 1974

A Study Of Naturally Occurring Algicides Produced By Freshwater Algae, Denny O. Harris, Harry D. Caldwell

KWRRI Research Reports

The mode of action of the algicide produced by Pandorina morum was examined by exposing Volvox globator and isolates spinach chloroplasts to a partially purified algicide preparation. Oxygen evolution of Volvox, whole chloroplasts and broken chloroplasts (minus the Calvin cycle),was reduced indicating that the algicide inhibits the light reactions of photosynthesis. Oxygen evolution studies of other Volvocaceae confirmed the observation that Pandorina morum is not significantly influenced by its own inhibitor. Molecular weight approximation by gel filtration established that the inhibitor has a low molecular weight (probably below 100 mw). Field studies indicate that this algicide has tremendous potential as …


Metabolic Capabilities Of Sulfur Oxidizing Bacteria And Their Role In Water Pollution, M. I. H. Aleem Sep 1974

Metabolic Capabilities Of Sulfur Oxidizing Bacteria And Their Role In Water Pollution, M. I. H. Aleem

KWRRI Research Reports

This report describes investigations into the physiology of microorganisms that are commonly involved in the oxidation of inorganic sulfur compounds. The metabolic activities of these bacteria play a potent role in several fields of economic importance such as strip mining operations, water pollution, corrosion, metallurgy, petroleum technology and soil fertility processes.

The oxidation of inorganic sulfur compounds was studied in the chemolithotrophs Thiobacillus denitrificans, Thiobacillus A2, Thiobacillus neapolitanus, and a photolithotroph Rhodopseudomonas palustris. Cell suspensions from all of the thiobacilli catalyzed completely the oxidation of sulfide, thiosulfate, and sulfite to sulfate. The oxidation of thiosulfate in R. palustris …


A Study Of Water-Soluble Inhibitory Compounds (Algicides) Produced By Fresh-Water Algae, Denny O. Harris, Manhar C. Parekh Nov 1973

A Study Of Water-Soluble Inhibitory Compounds (Algicides) Produced By Fresh-Water Algae, Denny O. Harris, Manhar C. Parekh

KWRRI Research Reports

A complex system of growth inhibitors was observed in the green algae (Volvocaceae). Inhibitors were found in the culture filtrates of some genera which limit their own growth (autoinhibitors) while others in the family produce substances which check the growth of other genera (heteroinhibitors). These inhibitors were destroyed by autoclaving. It was decided that Pandorina morum, which produced the strongest inhibitor and Volvox tertius, the most sensitive to the inhibitor would make an excellent model system for a study of the chemical and physical properties of these naturally occurring algicides. The algicide could be removed from actively growing cultures about …


Pneumotachograph, Louis Diamond, William T. Lipscomb Feb 1973

Pneumotachograph, Louis Diamond, William T. Lipscomb

Pharmacology and Nutritional Sciences Faculty Patents

A pneumotachograph suitable for measuring flow rates of respiratory gases in small animals and comprising essentially a flow-resisting element which can be placed in series with a subject''s airway. The pressure drop across the resistive element is proportional to the rate of airflow and is linear over the range of flows which one normally would expect to encounter in small animals (0-2 liters/min.).


Carbon And Nitrogen As Regulators Of Algal Growth In Treated Sewage, Edward G. Foree, Charles Reece Scroggin Mar 1972

Carbon And Nitrogen As Regulators Of Algal Growth In Treated Sewage, Edward G. Foree, Charles Reece Scroggin

KWRRI Research Reports

Continuous flow algal cultures were grown under three different growth conditions using secondary sewage treatment plant effluent as the growth medium. The only variable within each run was the hydraulic residence time. The concentrations of growth regulating nutrients were varied between the runs so comparisons of the algal mass, composition, nutrient uptake, and genera could be made. The importance of CO2 availability for algal growth was also studied. A kinetic theory which based algal growth on cellular nutrient concentration was verified. The second phase of the study was a batch culture study in which the same growth medium was …


Factors Regulating The Growth Of Algae In Continuous Culture In Diluted Secondary Sewage Treatment Plant Effluent And Subsequent Biodegradability, Edward G. Foree, Caroline P. Wade Jan 1972

Factors Regulating The Growth Of Algae In Continuous Culture In Diluted Secondary Sewage Treatment Plant Effluent And Subsequent Biodegradability, Edward G. Foree, Caroline P. Wade

KWRRI Research Reports

Heterogeneous algal cultures were grown in laboratory continuous culture in continuous flow, completely mixed chemostats in secondary sewage treatment plant effluent diluted to give an ammonia nitrogen concentration of 10 mg/1. Variables were lighting, pH, carbon dioxide availability, and hydraulic residence time.

Optimum growth occurred under pH 7.0, excess CO2, and continuous lighting conditions. The availability of artificially supplied excess CO2 greatly increased the mass (standing crop) at steady-state over that produced under otherwise identical conditions for all residence times studied. For the case of excess CO2 availability, the nitrogen concentration in the algal cells regulated …


Metabolic Role Of Sulfates And Sulfides Producing Bacteria In Pollution Of Waters, M. I. H. Aleem Dec 1971

Metabolic Role Of Sulfates And Sulfides Producing Bacteria In Pollution Of Waters, M. I. H. Aleem

KWRRI Research Reports

Cytochrome transport particles from Nitrobacter catalyzed nitrite, ascorbate as well as NADH oxidation with concomitant phosphate esterification yielding P/0 ratios of 1.0, 0.6 and 2.0 respectively. Phosphorylation coupled to nitrite oxidation was not effected by rotenone, amytal or antimycin while 50 and 70% inhibition of the NADH-linked phosphorylation was observed in the presence of HOQNO and rotenone respectively. Cell-free extracts from Nitrobacter also catalyzed an energy-dependent reduction of NAD+ by nitrite. The reduction of cytochrome c by NŌ2 was energy-dependent which involved the reversal of electrons from cytochrome a1. The subsequent energy-linked reduction of the flavoproteins …


Process Of Producing Equine Viral Arteritis Vaccine And Product Thereof, John T. Bryans, William H. Mccollum, James C. Wilson, Elvis R. Doll Jun 1971

Process Of Producing Equine Viral Arteritis Vaccine And Product Thereof, John T. Bryans, William H. Mccollum, James C. Wilson, Elvis R. Doll

Veterinary Science Faculty Patents

A process is disclosed for producing an avirulent attenuated live virus vaccine for use in immunizing horses against equine viral arteritis and for simultaneously obviating the transmission of the disease from a vaccinated horse to a non-vaccinated horse. The invention also includes the product derived from practice of the process and typical examples of the efficacy of the product are disclosed.


Procedures For Trace Analysis Of Dissolved Inorganic And Organic Constituents In Water, Gary D. Christian, Charles E. Matkovich, W. Lynn Schertz Jan 1971

Procedures For Trace Analysis Of Dissolved Inorganic And Organic Constituents In Water, Gary D. Christian, Charles E. Matkovich, W. Lynn Schertz

KWRRI Research Reports

A study of different solvent systems for the atomic absorption determination of cobalt revealed that acetone results in best sensitivity. Acetone is the solvent of choice for the sensitive measurement of several metals. Hence, methods were investigated for the separation of acetone from water by salting out so that possible solvent extraction of metal chelates into this solvent could be performed. About two-thirds saturated calcium chloride proved to be the best system for salting out of the acetone. It is essentially a neutral salt and is in general a weakly complexing salt, resulting in minimum interference in solvent extractions. Solvent …


Algal Growth And Decomposition: Effects On Water Quality, Phase Ii, Edward G. Foree, Ronald L. Barrow Oct 1970

Algal Growth And Decomposition: Effects On Water Quality, Phase Ii, Edward G. Foree, Ronald L. Barrow

KWRRI Research Reports

The decomposition and associated nutrient regeneration of three unialgal cultures and one mixed culture containing an indigenous population of bacteria and microscopic animals were studied under dark, constant temperature laboratory conditions. After periods of nutrient-deficient growth ranging from O to 30 days, these cultures were inoculated with decomposer populations and subjected to anaerobic and aerobic environments for the decomposition studies. The extend of decomposition was determined from the percentage volatile suspended solids and percentage particulate COD remaining after 200 days of decomposition. The average extent of decomposition was greater for aerobic than for anaerobic conditions. However, significant portions of the …


Algal Growth And Decomposition: Effects On Water Quality, Edward G. Foree, John S. Tapp Jr. Mar 1970

Algal Growth And Decomposition: Effects On Water Quality, Edward G. Foree, John S. Tapp Jr.

KWRRI Research Reports

The chemical composition of algae grown in batch culture depends mainly on environmental conditions, nutrient availability, presence of predators, cell age, and species. The effects of nutrient availability and cell age on the composition of three unialgal cultures (algae + bacteria) and one hetergeneous culture (algae + bacteria + microscopic animals) were evaluated. The cultures were grown in batch culture under both nutrient-abundant and nutrient deficient conditions and the changes in compositions were observed. Luxurious uptake where nutrients are incorporated into cellular protoplasm at levels greater than those necessary for growth, and super-luxurious uptake, where some nutrients are stored rather …


Bone Fractures And Their Prognosis, Robert Tuby Jan 1970

Bone Fractures And Their Prognosis, Robert Tuby

Kentucky Law Journal

No abstract provided.