Involving Glucose Or Galactose Patents (Class 435/14)
  • Patent number: 8372630
    Abstract: An optical glucose sensor chip includes a substrate, a pair of optical elements formed on a surface of the substrate for introducing light into the substrate and for emitting the light from the substrate, and a glucose sensing membrane formed on the surface of the substrate at a position between the optical elements. The sensing membrane includes a color reagent substrate, a first enzyme which oxidizes or reduces glucose, a second enzyme that generates a material which makes the color reagent substrate exhibit color by a reaction with a product obtained by oxidation or reduction of glucose, a nonionic cellulose derivative, and an ionic polymer into which a buffer is incorporated. At least one of the first and second enzymes is coated with the ionic polymer, and the color reagent substrate. The first and second enzymes, the buffer and the ionic polymer are supported by the nonionic cellulose derivative.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: February 12, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Ikuo Uematsu, Masaaki Hirakawa, Kayoko Oomiya
  • Publication number: 20130034872
    Abstract: A hand-held test meter and analytical test strip cartridge assembly combination includes a hand-held test meter with a test meter housing and an extractor with a test strip engagement feature, while the analytical test strip cartridge assembly includes a desiccant vial and an analytical test strip cartridge with a cartridge housing, a test strip presentation mechanism disposed within the cartridge housing, and a plurality of analytical test strips (each with at least one extractor engagement feature) disposed in the cartridge housing. The test meter housing is configured for operative engagement with the cartridge housing and the test strip presentation mechanism is configured to present a single analytical test strip from the plurality of analytical test strips for engagement with the extractor. Moreover, the analytical test strip cartridge is configured for operative disposition in the desiccant vial.
    Type: Application
    Filed: May 4, 2012
    Publication date: February 7, 2013
    Applicant: Cilag GmbH International
    Inventor: David MATZINGER
  • Publication number: 20130034870
    Abstract: A method for the transfer of a bodily fluid sample (such as a whole blood sample) during the determination of an analyte (e.g., glucose) in the bodily fluid sample includes applying the bodily fluid sample to a sample collection reservoir of an analytical test strip (for example, an electrochemical-based analytical test strip). During such application, the sample collection reservoir is isolated from fluid communication with a determination chamber of the analytical test strip. The analytical test strip is subsequently inserted into a test meter such that the sample collection reservoir is placed into fluid communication with the determination chamber and such that at least a portion of the bodily fluid sample is consequentially transferred from the sample collection reservoir to the determination chamber. The method further includes determining the analyte in the bodily fluid sample transferred to the determination chamber.
    Type: Application
    Filed: August 4, 2011
    Publication date: February 7, 2013
    Inventors: Khalid R. QURAISHI, David Matzinger
  • Publication number: 20130034871
    Abstract: A hand-held test meter and analytical test strip cartridge combination includes a hand-held test meter with a test meter housing and an extractor with a test strip engagement feature, while the analytical test strip cartridge includes a cartridge housing, a test strip presentation mechanism disposed within the cartridge housing, and a plurality of analytical test strips (each with at least one extractor engagement feature) disposed in the cartridge housing. Moreover, the test meter housing is configured for operative engagement with the cartridge housing, the test strip presentation mechanism is configured to present a single analytical test strip from the plurality of analytical test strips for engagement with the extractor, and the extractor and test meter housing are configured such that the extractor is operatively extendable from the test meter housing into the cartridge housing upon engagement of the meter housing with the cartridge housing.
    Type: Application
    Filed: August 4, 2011
    Publication date: February 7, 2013
    Applicant: Cilag GmbH International
    Inventors: David MATZINGER, Khalid R. Quraishi
  • Patent number: 8367359
    Abstract: Disclosed are small molecule metabolites useful as biomarkers for the evaluation and treatment of pre diabetes, diabetes and insulin resistance.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: February 5, 2013
    Assignees: The United States of America, as represented by the Secretary of Agriculture, The Regents of the University of California
    Inventors: Sean H. Adams, Oliver Fiehn
  • Patent number: 8367362
    Abstract: A method for the in vitro diagnosis of colorectal cancer by determining the presence of Aminoacylase 1 tumor marker in a biological sample taken from a patient suspected of having colorectal cancer. Said method can be used for early diagnosis, screening, therapeutic follow-up and prognosis, and also for relapse diagnosis in relation to colorectal cancer.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: February 5, 2013
    Assignee: Biomerieux
    Inventors: Jean-Philippe Charrier, Genevieve Choquet-Kastylevsky, Dominique Rolland
  • Patent number: 8367418
    Abstract: The invention provides a method for determining a suitable drug combination for the treatment of Type 2 diabetes by obtaining data from a Type 2 diabetes population in which all of the Type 2 diabetics are not taking any Type-2 diabetes drugs and obtaining reference levels of glucose supply and insulin demand parameters. Data from discrete samples of Type 2 diabetes populations in which all individuals are being treated with one or more Type 2 diabetes drugs at a therapeutic dose are also obtained, and the effects of the drugs on the glucose supply and insulin demand parameters are used to determine adjustment factors which represent the effect of each of the drugs at the therapeutic dosage, which are used to determined a ratio of a Glucose Supply Index (S) to an Insulin Demand Index (D). The ratio is further utilized in scoring cardiovascular risks for Type 2 diabetics and recommending therapeutic interventions.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: February 5, 2013
    Assignee: TheraSyn Sensors, Inc.
    Inventors: Scott V. Monte, Frank Bright, Jerome Schentag
  • Patent number: 8367358
    Abstract: The present disclosure discloses a reagent for differentiating and counting leukocytes which includes: (1) cationic cyanine compounds selected from those having the following general formulae I and II; (2) cationic surfactants selected from those having the following general formulae III, IV and/or V; (3) at least one nonionic surfactant; and (4) optionally, at least one anionic compound selected from those having one or more carboxyl or sulphonyl groups; and optionally includes alcohol compounds. Also disclosed is a kit comprising the reagent for differentiating and counting leukocytes. Further disclosed is a method for differentiating and counting leukocytes using the reagent and kit. Use of the reagent, kit and method disclosed enables the identification of leukocytes in blood samples into five subtypes in a very short time, or at least achieves the differentiation and counting of four leukocyte groupings. Moreover, immature and abnormal cells can be identified.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: February 5, 2013
    Assignee: Shenzhen Mindray Bio-Medical Electronics Co., Ltd.
    Inventors: Lei Ting, Xu Bing, Kuang Yuji, Zhang Baohua, Shao Jianhui
  • Publication number: 20130029364
    Abstract: Provided are a method for increasing an amount of glucose oxidase to be immobilized on the self-assembled monolayer and a sensor which comprises glucose oxidase immobilized with the method. The method of the disclosed technology is characterized by that one molecule of an amino acid is interposed between the self-assembled monolayer and the molecule of the glucose oxidase.
    Type: Application
    Filed: September 26, 2012
    Publication date: January 31, 2013
    Applicant: Panasonic Corporation
    Inventor: Panasonic Corporation
  • Patent number: 8361705
    Abstract: The present disclosure provides methods for analyzing structure and/or composition of N-glycans. Such methods often involve digestion of N-glycans with multiple exoglycosidases. In some embodiments, N-glycans are digested with multiple exoglycosidases simultaneously. In some embodiments, N-glycans are digested with multiple exoglycosidases sequentially. In some embodiments, methods in accordance with the present disclosure involve comparison of cleavage products of N-glycans that have been digested with multiple exoglycosidases simultaneously to N-glycans that have been digested with multiple exoglycosidases sequentially.
    Type: Grant
    Filed: April 15, 2008
    Date of Patent: January 29, 2013
    Assignee: Momenta Pharmaceuticals, Inc.
    Inventors: Ian Christopher Parsons, Dorota A. Bulik, Carlos J. Bosques, Lakshmanan Thiruneelakantapillai, Brian Edward Collins
  • Publication number: 20130023000
    Abstract: A device is disclosed for conducting a non-invasive analysis of a bodily fluid to determine the presence and level of a certain constituent carried by the bodily fluid. An indicator formulation of the device changes color in response to exposure to the constituent to provide a visible indication of the presence and level of the constituent carried by the bodily fluid. A carrier substrate of the device is constructed of a material having voids providing a high void volume within the substrate. The device is made by applying a chromagen to the carrier substrate to create a chromagen-laden carrier member. Then, a selected reagent having a particular constituent-specific formulation is applied to the chromagen-laden member. The selected reagent then combines with the chromagen, thereby establishing the indicator formulation within the carrier substrate in place for reception of a sample of the bodily fluid.
    Type: Application
    Filed: September 7, 2012
    Publication date: January 24, 2013
    Applicant: POP TEST LLC
    Inventors: Randice Lisa Altschul, Myron Rapkin, Rebecca O'Brien
  • Publication number: 20130023474
    Abstract: The invention relates to variants and fusions of fibroblast growth factor 19 (FGF19), variants and fusions of fibroblast growth factor 21 (FGF21), fusions of fibroblast growth factor 19 (FGF19) and/or fibroblast growth factor 21 (FGF21), and variants or fusions of fibroblast growth factor 19 (FGF19) and/or fibroblast growth factor 21 (FGF21) proteins and peptide sequences (and peptidomimetics), having one or more activities, such as glucose lowering activity, and methods for and uses in treatment of hyperglycemia and other disorders.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 24, 2013
    Applicant: NGM Biopharmaceuticals, Inc.
    Inventors: LEI LING, DARRIN A. LINDHOUT
  • Patent number: 8357276
    Abstract: The present disclosure provides small volume analyte sensors having large sample fill ports, supported analyte sensors, analyte sensors having supported tip protrusions and methods of making and using same.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: January 22, 2013
    Assignee: Abbott Diabetes Care Inc.
    Inventors: Yi Wang, Shridhara Alva Karinka, Benjamin J. Feldman
  • Patent number: 8357487
    Abstract: A method of degumming jute fibres with complex enzyme, wherein said complex enzyme comprises pectinase and laccase, wherein comprising the steps of: a. soaking the jute fibres in the water solution of said complex enzyme made from pectinase and laccase, wherein the weight proportion of said complex enzyme water solution and jute fibres ranges from 12:1 to 40:1; b. adjusting the PH value of said complex enzyme water solution to more than 5.0, but no more than 6.5, and adjusting the temperature of said complex enzyme water solution to 35° C.-65° C., then keeping said complex enzyme water solution with such temperature value for 20-120 minutes; c. adjusting the PH value of said complex enzyme water solution to 7.5-9.5, and adjusting the temperature of said complex enzyme water solution to 40° C.-70° C.; then, keeping said complex enzyme water solution with such temperature value for 20-120 minutes; d. conducting enzyme deactivation of the jute fibres processed with said complex enzyme.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: January 22, 2013
    Assignee: Jiangsu Redbud Textile Technology
    Inventors: Guozhong Liu, Zhenhua Zhang
  • Patent number: 8349612
    Abstract: A guided structured testing kit which may include a test strip container, a test strip meter, a testing protocol advisor, and at least one of diagnostic test strip is presented. The diagnostic test strip includes a support element, a glucose reagent provided on the support element, and a glycemic context code provided on the support element. The glycemic context code can be machine-readable. The glycemic context code signals a glycemic context to a test strip meter, either upon insertion of the diagnostic test strip or by a user manually inputting the glycemic context into the test strip meter. A method for performing a guided structured test is also provided.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: January 8, 2013
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Christopher Wiegel, Colleen Csavas, Ulrich Porsch
  • Patent number: 8349553
    Abstract: The present invention provides compositions comprising compounds that selectively bind to hexokinases thereby promoting dissociation of these enzymes from mitochondria, and methods of use of such compounds and compositions to induce cell death in diseases and disorders characterized by the high levels of mitochondrial bound hexokinase. The present invention further discloses methods and assays for detecting and identifying molecules having these activities.
    Type: Grant
    Filed: March 16, 2008
    Date of Patent: January 8, 2013
    Assignees: Ramot at Tel Aviv University Ltd., Sepal Pharma S.A.
    Inventors: Eliezer Flescher, Natalia Goldin, Max Herzberg
  • Patent number: 8343331
    Abstract: Disclosed herein is a method of correcting erroneous measurement results in a biosensor. The method includes the steps of: (a) applying a first voltage from a voltage generator 12 to a test strip 10 when a blood sample is applied on the test strip 10, and measuring an electric current generated from the test strip within one second of applying the first voltage by a microcontroller unit (MCU), and then calculating a hematocrit value of the blood sample using the measured electric current value! (b) applying a second voltage from the voltage generator to the test strip after calculating the hematocrit value of the blood sample, and measuring an electric current generated from the test strip within a predetermined time of applying the second voltage, and then calculating a glucose level using the measured electric current value; and (c) correcting the glucose level in (b) by using the calculated hematocrit value in (a).
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: January 1, 2013
    Assignee: Philosys Co., Ltd.
    Inventor: In Hwan Choi
  • Publication number: 20120329083
    Abstract: A test unit cartridge for holding a plurality of test units includes a first test unit that contains a first analyte sensor and a second test unit that contains a second analyte sensor. The first and second analyte sensors use first and second reagents to detect first and second analytes, respectively. The first analyte is different from the second analyte and the first and second test units are functionally non-fungible. The plurality of test units can also include a third test unit that contains two analyte sensors having two reagents for detecting two different analytes using one fluid sample. A method of using the test unit cartridge is also described, which comprises loading the cartridge into an analyte testing device and cocking an actuator of the device that is configured to (i) expose an analyte sensor of a test unit, (ii) ready a lancet, and (iii) advance a lancet cartridge.
    Type: Application
    Filed: July 20, 2011
    Publication date: December 27, 2012
    Applicant: GADLIGHT, INC.
    Inventors: Gad Shaanan, Marc Goldman
  • Patent number: 8338184
    Abstract: The invention provides enzymatic methods for direct determination of percentage of glycated hemoglobin in blood samples without the need of a separated measurement of total hemoglobin content in blood samples. The methods utilizes one or two different types of oxidizing agents which selectively oxidize low-molecular weight reducing substances and high-molecular weight (mainly hemoglobin) reducing substances in blood samples, coupled with enzymatic reactions catalyzed by proteases, fructosyl amino acid oxidase. The amount of hydrogen peroxide generated in the reaction is measured for determination of percentage of glycated hemoglobin in blood samples. The invention provides kits for performing the methods of the invention.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: December 25, 2012
    Assignee: General Atomics
    Inventors: Chong-Sheng Yuan, Abhijit Datta, Limin Liu
  • Patent number: 8338118
    Abstract: The invention relates to processes and devices for detecting an analyte in a sample by fluorescence measurement of a fluorophore, wherein the detection medium which contains a fluorophore or a precursor of the fluorophore is admixed with an absorber whose absorbance spectrum superimposes the fluorescence excitation range of the fluorophore. The system consisting of the fluorophore and the absorber, which is produced in the detection medium, has an altered effective fluorescence excitation range with an altered fluorescence excitation maximum. Illumination with fluorescence excitation light can take place within the range of this altered excitation maximum. The measured signal obtained from determining fluorescence emission exhibits only low dependence on the wavelength of the excitation light.
    Type: Grant
    Filed: February 9, 2009
    Date of Patent: December 25, 2012
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Wolfgang Petrich, Claudia Gaessler-Dietsche, Carina Horn, Kari Hebestreit, Jean-Michel Asfour, Klemens Bardelang, Gerrit Kocherscheidt
  • Patent number: 8333874
    Abstract: The present invention generally relates to a system and method that co-locates in a small flexible, configurable system and multi-level substrate sampling, rapid analysis, bio-sample storage and delivery functions to be performed on living tissues or matter obtained from living organisms. The types of the sampling may include chemical, biochemical, biological, thermal, mechanical, electrical, magnetic and optical sampling. In general, the analysis performed at the point of sampling measures the sample taken and records its value. The bio-sample storage function encapsulates a small sample of analyte and preserves it for subsequent examination or analysis, either on the organism by the system or at a remote location by an independent analysis system. Once stored, the sample can provide a record of a biological state at the precise time of sampling. The delivery at the point of sampling can include chemical, biochemical, biological, thermal, mechanical, electrical, magnetic and optical stimuli.
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: December 18, 2012
    Assignee: Flexible Medical Systems, LLC
    Inventor: John Frederick Currie
  • Patent number: 8334109
    Abstract: A reagent for blood analysis includes: (1) a compound having the general formula I; and (2) at least one surfactant selected from cationic surfactants and nonionic surfactants. In another aspect a method for differentiating and counting blood cells is provided, the method includes the following steps: (a) mixing a blood sample with the reagent for blood analysis according to the present disclosure to form a cell suspension; (b) detecting scattered light signals and fluorescence signals of cells in the blood sample; and (c) differentiating and counting the cells in the blood sample based upon the scattered light signals and fluorescence signals. The reagent for blood analysis may be effective for identifying and counting erythroblasts and/or basophils in a blood sample to be detected, and meanwhile counting leukocytes therein.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: December 18, 2012
    Assignee: Shenzhen Mindray Bio-Medical Electronics Co., Ltd.
    Inventors: Zhang Baohua, Xu Bing, Kuang Yuji, Lei Ting, Shao Jianhui, Bao Dequan
  • Patent number: 8334140
    Abstract: A sensor comprises respective acceptor and donor compounds immobilised in or on a matrix including a glucose-binding boronate and a cationic species, whereby the spacing between the acceptor and donor compounds is reduced in the presence of glucose. For example a holographic sensor comprises a glucose-binding boronate and a cationic species held within the sensor.
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: December 18, 2012
    Assignees: Smart Holograms Limited, Cambridge Enterprise Limited
    Inventors: Satyamoorthy Kabilan, Mei-Ching Lee, Adrian Martin Horgan, Kathryn Elizabeth Sorrell Medlock, Christopher Robin Lowe, Jeffrey Blyth
  • Patent number: 8329439
    Abstract: A modified pyrroloquinoline quinone glucose dehydrogenase that exhibits a high selectivity for glucose is provided. A modified pyrroloquinoline quinone glucose dehydrogenase is disclosed in which the amino acid residue G at Position 99 of a pyrroloquinoline quinone glucose dehydrogenase (PQQGDH) represented by SEQ ID NO: 1, or the amino acid residue G at Position 100 of the pyrroloquinoline quinone glucose dehydrogenase (PQQGDH) represented by SEQ ID NO: 3, is substituted by the amino acid sequence TGZN (where Z is SX, S, or N and X is any amino acid residue). The modified PQQGDH of the present invention may additionally comprise one or more mutations selected from the group consisting of Q192G, Q192A, or Q192S; L193X; E277X; A318X; Y367A, Y367F, or Y367W; G451C; and N452X (where X is any amino acid residue).
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: December 11, 2012
    Assignees: ARKRAY, Inc., Ultizyme International Ltd.
    Inventor: Koji Sode
  • Patent number: 8329426
    Abstract: According to the invention, there is provided a high throughput method for measuring total fermentables using a small amount of plant tissue. A high throughput screening tool for gene discovery aiming for increasing total fermentables is further provided.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: December 11, 2012
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Lan Zhou, Xiaoming Bao
  • Publication number: 20120309030
    Abstract: A method of determining risk of diabetes is provided. In one embodiment, the method comprises: a) measuring the levels of a plurality of biomarkers in a blood samples obtained from a patient, wherein the plurality of biomarkers comprises at least five of the following biomarkers: glucose, adiponectin, CRP, IL2RA, ferritin, insulin and HbAIc; b) calculating a diabetes risk score for the patients using the levels and, optionally, patient age and/or gender. Results obtained from performing the assay on a reference population are similar or identical to those obtained using Formula I.
    Type: Application
    Filed: October 28, 2010
    Publication date: December 6, 2012
    Applicant: TETHYS BIOSCIENCE, INC.
    Inventors: Michael P. McKenna, Michael Rowe, Edward J. Moler, JR., Robert W. Gerwien
  • Publication number: 20120301908
    Abstract: The present invention pertains to the field of measuring the concentration of a substance in whole blood and relates to a method for determining the reliability of a device for measuring the concentration of a substance in whole blood, and to a method for treating whole blood, wherein a cell-free blood fraction enriched with said substance and a suspension of blood cells are stored separately from each other. The invention also relates to a container and to a kit.
    Type: Application
    Filed: January 20, 2011
    Publication date: November 29, 2012
    Applicant: EUROTROL B.V.
    Inventors: Bart Johan Jungerius, Carolina Johanna Huizing, Bartholomeus Henricus Antonius Maas
  • Patent number: 8318501
    Abstract: The invention provides enzymatic methods for direct determination of percentage of glycated hemoglobin in blood samples without the need of a separated measurement of total hemoglobin content in blood samples. The methods utilizes one or two different types of oxidizing agents which selectively oxidize low-molecular weight reducing substances and high-molecular weight (mainly hemoglobin) reducing substances in blood samples, coupled with enzymatic reactions catalyzed by proteases, fructosyl amino acid oxidase, and peroxidase. The invention provides kits for performing the methods of the invention.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: November 27, 2012
    Assignee: General Atomics
    Inventors: Chong-Sheng Yuan, Abhijit Datta, Limin Liu
  • Publication number: 20120297500
    Abstract: The present invention relates to a new plant breeding process. The process improves the agronomic performance of crop plants by using genetic material that is also used in classical breeding. Instead of sexually recombining entire genomes at random, as is done in classical breeding, specific genetic elements are rearranged in vitro and inserted back into individual plant cells. Plants obtained through this new plant breeding process do not contain foreign nucleic acid but only contain nucleic acid from the plant species selected for transformation or plants that are sexually compatible with the selected plant species. Plants developed through this new plant breeding process are provided. In particular, potato plants displaying improved tuber storage and health characteristics are provided.
    Type: Application
    Filed: May 25, 2012
    Publication date: November 22, 2012
    Inventor: Caius Rommens
  • Patent number: 8313911
    Abstract: Methods for the production of omega-3 and/or omega-6 fatty acids in oleaginous yeasts grown on a fermentable carbon source selected from the group consisting of invert sucrose, glucose, fructose and combinations of these, provided that glucose is used in combination with invert sucrose and/or fructose. Specifically, methods are provided for production of linoleic acid, eicosadienoic acid, gamma-linolenic acid, dihomo-gamma-linolenic acid, arachidonic acid, n-6 docosapentaenoic acid, ?-linolenic acid, stearidonic acid, eicosatrienoic acid, eicosatetraenoic acid, eicosapentaenoic acid, docosapentaenoic acid and docosahexaenoic acid.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: November 20, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Ethel Noland Jackson, David Richard Short, Dongming Xie, Zhixiong Xue, Quinn Qun Zhu
  • Publication number: 20120276566
    Abstract: A method for distinguishing among a first group of microorganisms, belonging to a first taxon of yeasts that is resistant to an antifungal; a second group of microorganisms, belonging to a second taxon of yeasts that is different than the first taxon of yeasts, and that exhibits the mechanism of resistance to the antifungal exhibited by the first group; and a third group that is not resistant to the antifungal.
    Type: Application
    Filed: June 29, 2012
    Publication date: November 1, 2012
    Applicant: BIOMERIEUX
    Inventors: Sylvain ORENGA, Celine ROGER-DALBERT, John PERRY, Vanessa CHANTEPERDRIX, Gilles ZAMBARDI, Nathalie BAL
  • Publication number: 20120276565
    Abstract: Methods for stabilizing an enzyme by storing the enzyme in the presence of a stabilized coenzyme are disclosed. In addition, an enzyme stabilized with a stabilized coenzyme as well as the use thereof in test elements for detecting analytes are also disclosed. Other aspects include unique compositions, methods, techniques, systems and devices involving enzyme stabilization.
    Type: Application
    Filed: February 20, 2012
    Publication date: November 1, 2012
    Inventors: Wolfgang Roedel, Carina Horn, Nelli Steinke, Nadine Bucci, Thomas Meier, Rainer Schmuck, Rolf Nagel, Dieter Heindl
  • Publication number: 20120270235
    Abstract: The present invention relates to a membrane sensor having a multi-hole film attached thereto and a method for measuring immunological reactions or enzymatic reactions using the same. More specifically, the present invention relates to a membrane sensor in which a multi-hole film is joined to the top of a membrane on which receptors are immobilized, and a method for measuring immunological reactions or enzymatic reactions using the same. The present invention makes it possible to adjust the sensitivity of membrane biosensors by adjusting the hole size in the multi-hole film and so makes it possible to measure analytes with a high degree of sensitivity using just a small amount of sample, and makes it possible to simultaneously measure diverse types of analyte by attaching various types of receptor on the membrane sensor.
    Type: Application
    Filed: November 24, 2010
    Publication date: October 25, 2012
    Applicants: KOREA RESEARCH INSTITUTE OF BIOSCIENCE AND BIOTECHNOLOGY, INFOPIA CO., LTD.
    Inventors: Min Gon Kim, Yong Beom Shin, Young Kyeng O, Hyo Arm Joung
  • Publication number: 20120270248
    Abstract: A method for detecting bacteria in biological fluids is provided, the method comprising placing a biological fluid possibly containing bacteria in a container, the container including a detergent for reducing the respiration of blood cells, and a bacterial growth promoter, and measuring and/or detecting the level of glucose in the biological fluid in the container, over a period of time. A system for carrying out the method is also provided.
    Type: Application
    Filed: April 21, 2011
    Publication date: October 25, 2012
    Applicant: PALL CORPORATION
    Inventor: Cyndi Leslie Chen Kwan
  • Publication number: 20120270249
    Abstract: A method for distinguishing among a first group of microorganisms, belonging to a first taxon of bacteria that is vancomycin resistant; a second group of microorganisms, belonging to a second taxon of vancomycin resistant bacteria that is different than said first taxon; and a third group of microorganisms that is not resistant or has a natural resistance to vancomycin.
    Type: Application
    Filed: June 29, 2012
    Publication date: October 25, 2012
    Applicant: BIOMERIEUX
    Inventors: Sylvain ORENGA, Céline ROGER-DALBERT, John PERRY, Vanessa CHANTEPERDRIX, Gilles ZAMBARDI, Nathalie BAL
  • Patent number: 8293539
    Abstract: An analysis system for detecting at least one analyte in a sample is proposed, in particular for detecting glucose in a bodily fluid. The analysis system is designed to detect the analyte using at least one test element. The test element has at least one analysis zone for detecting the analyte. The test element includes at least one coding with at least one test element specific item of information and/or at least one position specific item of information. The analysis system includes a detector and furthermore at least one transfer device which is designed to afford the detector the possibility of acquiring the analysis zone in at least a first position and to afford the detector the possibility of acquiring the coding in at least a second position which differs from the first position.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: October 23, 2012
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Wolfgang Petrich, Stefan Kalveram, Markus Serr
  • Patent number: 8287717
    Abstract: The present invention relates to systems, methods, and devices for determining the concentration of an analyte in a sample. The use of linear, cyclic, or acyclic voltammetric scans and/or semi-integral, derivative, or semi-derivative data treatment may provide for increased accuracy when determining the concentration of an analyte in a sample. Hematocrit compensation in combination with the data treatments may reduce the hematocrit effect with regard to a glucose analysis in whole blood. In another aspect, fast scan rates may reduce the hematocrit effect.
    Type: Grant
    Filed: May 16, 2005
    Date of Patent: October 16, 2012
    Assignee: Bayer HealthCare LLC
    Inventor: Huan-Ping Wu
  • Publication number: 20120258467
    Abstract: The invention provides transdermal optical analysis systems, test sensors, methods, and kits for determining the presence and/or concentration of at least one analyte in a fluid sample. The system includes a transdermal test sensor including an aqueous material including at least one analyte selective reagent and at least one optically active moiety. The optical system preferably uses fluorescent spectroscopy to correlate fluorescent emission or adsorption from a dye with the analyte concentration of the sample. An optical light source and/or detector may be housed with the aqueous material in a housing or external to the housing of the aqueous material.
    Type: Application
    Filed: December 16, 2010
    Publication date: October 11, 2012
    Applicant: Bayer HealthCare LLC
    Inventors: Swetha Chinnayelka, Paul Ripley
  • Publication number: 20120252045
    Abstract: A method for assessing islet function comprising determining an oxygen consumption rate (OCR) of the islets; determining an islet index (II) of the islets; and determining an OCR/II ratio, wherein a high OCR/II ratio correlates with increased islet function. The methods may be performed on islets in vitro. In some embodiments, the methods may be performed on islets to be used for transplantation after they are harvested from a donor pancreas and prior to transplanting the islets into a recipient.
    Type: Application
    Filed: September 3, 2010
    Publication date: October 4, 2012
    Inventor: Andrew Pepper
  • Publication number: 20120252046
    Abstract: A transdermal test sensor includes a test chamber including a liquid, a reagent system in contact with the liquid, a housing containing the liquid, and a semipermeable membrane. The housing includes an opening, the semipermeable membrane is connected to the housing and covers the opening, and the housing and the semipermeable membrane enclose the liquid and the reagent system. The transdermal test sensor also includes an analyzer in communication with the liquid. When porated tissue is contacted with the semipermeable membrane and sufficient time is allowed for a fluid sample to traverse the porated tissue and for an analyte in the fluid sample to enter the liquid in the transdermal sensor through the semipermeable membrane, a change in at least one optical property or at least one electrical property of the liquid is detected. The change detected is then correlated with the analyte concentration in the fluid sample.
    Type: Application
    Filed: December 16, 2010
    Publication date: October 4, 2012
    Applicant: Bayer HealthCare LLC
    Inventors: Jiangfeng Fei, Narasinha Parasnis, Swetha Chinnayelka
  • Patent number: 8277636
    Abstract: The present invention relates to a glucose sensor (2) including an electrode (32) which includes a conductive component and glucose dehydrogenase immobilized to the conductive component. As the glucose dehydrogenase, use is made of a protein complex including a catalytic activity subunit which has glucose dehydrogenase activity, and an electron mediator subunit for supplying an electron donated from the catalytic activity subunit to the conductive component. Preferably, the glucose sensor (2) is designed to continuously measure the glucose level or successively measure the glucose level a plurality of times.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: October 2, 2012
    Inventor: Koji Sode
  • Publication number: 20120244565
    Abstract: An object is to provide a novel enzyme that exhibits glucose dehydrogenase activity. Furthermore, another object is to provide a novel method pertaining to enzyme modification.
    Type: Application
    Filed: November 22, 2010
    Publication date: September 27, 2012
    Applicant: Amano Enzyme Inc.
    Inventors: Kyoichi Nishio, Satoshi Koikeda
  • Publication number: 20120237937
    Abstract: Some embodiments of the invention include methods for detecting the presence of cancer in animal tissue in an animal that was administered a labeled molecule. Some of the methods disclosed comprise obtaining an NMR spectrum, an MS spectrum, or both. In some instances, spectra can be taken of a cancer cell extract of the tissue and of a non-cancer cell extract of the tissue. In some embodiments, the amounts of at least one resultant labeled molecule (e.g., a molecule resulting from transformation of the administered labeled molecule) from each extract can be compared to detect the presence of cancer.
    Type: Application
    Filed: June 11, 2010
    Publication date: September 20, 2012
    Applicant: UNIVERSITY OF LOUISVILLE RESEARCH FOUNDATION, INC.
    Inventors: Teresa Whei-Mei Fan, Andrew Nicholas Lane, Michael Bousamra, Donald M. Miller, Richard M. Higashi
  • Publication number: 20120233714
    Abstract: The present invention provides a non-human mammalian animal model for type 2 diabetes, which spontaneously develops a pathological condition similar to human type 2 diabetes of a non-obese type popular for the Japanese people. The non-human mammalian animal model for type 2 diabetes according to the present invention is deficient in a function of Cdkal1 gene on the chromosome of the ? cell of the pancreas.
    Type: Application
    Filed: November 10, 2010
    Publication date: September 13, 2012
    Inventors: Kazuhito Tomizawa, Fanyan Wei
  • Patent number: 8263328
    Abstract: A device is disclosed for conducting a non-invasive analysis of a bodily fluid to determine the presence and level of a certain constituent carried by the bodily fluid. An indicator formulation of the device changes color in response to exposure to the constituent to provide a visible indication of the presence and level of the constituent carried by the bodily fluid. A carrier substrate of the device is constructed of a material having voids providing a high void volume within the substrate. The device is made by applying a chromagen to the carrier substrate to create a chromagen-laden carrier member. Then, a selected reagent having a particular constituent-specific formulation is applied to the chromagen-laden member. The selected reagent then combines with the chromagen, thereby establishing the indicator formulation within the carrier substrate in place for reception of a sample of the bodily fluid.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: September 11, 2012
    Assignee: Pop Test LLC
    Inventors: Randice Lisa Altschul, Myron Rapkin, Rebecca O'Brien
  • Patent number: 8257940
    Abstract: A diagnostic chewing gum for identifying a risk for diabetes includes a mixture of an enzyme, a conjugated protein of the glucose enzyme, a substrate, and a gum base. The enzyme and the conjugated protein facilitate a conversion of the substrate to produce a detectable signal in the presence of glucose to produce a detectable change in the gum. In use, the gum is chewed, the resulting change in the gum is compared against a chart, and the risk for diabetes is determined from the chart.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: September 4, 2012
    Inventors: Charlie Chandsawangbhuwana, Jonathan T W Kuo
  • Publication number: 20120219530
    Abstract: The invention provides therapeutic compositions comprising reprogrammed adipocyte cells for use as disease models, therapeutic compositions comprising reprogrammed adipocyte cells for the treatment of conditions characterized by a reduction in cell number or tissue mass, and methods of generating such cells.
    Type: Application
    Filed: September 26, 2011
    Publication date: August 30, 2012
    Applicant: The General Hospital Corporation
    Inventors: David H. Lum, Tim D. Ahfeldt, Chad Cowan
  • Patent number: 8252235
    Abstract: A liquid sample is aspirated using an aspirating tube provided with a flow path extending lengthwise in the interior of the tube, and an aspiration orifice for aspirating the liquid sample formed near the tip of the tube. The aspiration of the liquid sample to the aspirating tube is monitored during aspiration. Liquid sample is aspirated by the aspirating tube, and the collected material in the aspirating tube in the region at the tip side from the region containing the liquid sample to be used for measurement is delivered to a detecting part provided externally to the aspirating tube, and whether or not liquid sample is contained in the collected material is detected in the detecting part.
    Type: Grant
    Filed: August 28, 2006
    Date of Patent: August 28, 2012
    Assignee: Sysmex Corporation
    Inventors: Masaharu Shibata, Yoichi Nakamura
  • Patent number: 8252523
    Abstract: A reagent composition for a biosensor sensor strip is disclosed that provides for rapid rehydration after drying. The composition includes porous particles and is preferably formed as a colloidal suspension. The dried reagent composition including porous particles may provide analytically useful output from the sensor strip in a shorter time period than observed from dried reagent compositions using solid particles. The output signal from the porous particle compositions may be correlated to the analyte concentration of a sample within about two seconds. In this manner, an accurate concentration determination of an analyte concentration in a sample may be obtained in less time than from sensor strips including conventional compositions. The reagent composition including the porous particles also may allow for the redox reaction between the reagents and the analyte to reach a maximum kinetic performance in a shorter time period than observed from conventional sensor strips.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: August 28, 2012
    Assignee: Bayer HealthCare LLC
    Inventor: Boru Zhu
  • Publication number: 20120215460
    Abstract: A biosensor system determines analyte concentration from an output signal generated by an oxidation/reduction reaction of the analyte. The biosensor system adjusts a correlation for determining analyte concentrations from output signals at one temperature to determining analyte concentrations from output signals at other temperatures. The temperature-adjusted correlation between analyte concentrations and output signals at a reference temperature may be used to determine analyte concentrations from output signals at a sample temperature.
    Type: Application
    Filed: March 6, 2012
    Publication date: August 23, 2012
    Applicant: BAYER HEALTHCARE LLC.
    Inventors: Huan-Ping Wu, Christine D. Nelson