Abstract: An object of the present invention is to provide a method for predicting the risk of acquiring influenza, which is characterized by low price, low invasiveness, and applicability to total automation. The present invention provides a method for predicting the risk of acquiring influenza, which comprises measuring the ratio of anti-influenza IgA to the total IgA in a specimen collected from a subject.

Abstract: A humoral testing apparatus in which a measuring light is irradiated to a reagent area forming a color as a result of a reaction and an optical density of the reagent area is detected by a detecting operation of light intensity of the reflected light. The humoral testing apparatus enables a humoral test to be performed accurately in cases where nonuniformity occurs with the reaction of a reagent with a humoral sample within the reagent area, or in cases where fine dust is present within each detecting spot in the reagent areas. The light reflected from the reagent areas is detected with a two-dimensional photodetector. The independent light intensity detecting operations are performed with respect to the subareas of the reagent area of a reagent layer. A photo detection signal S, which represents the intensity of the reflected light is statistically processed with a signal processing section 51.

Abstract: An optical measuring apparatus comprises: an illuminating section that illuminates a first object with a first light; a light changing section that changes an intensity of the first light illuminating the first object; a light receiving device that receives a second light transmitted through or reflected from the first object; and an output section that outputs a measurement result according to i) a state of the light changing section and ii) an amount of the second light received by the light receiving device. In addition, an optical measuring apparatus comprises: the illuminating section; the light receiving device; a light receiving time changing section that changes a light receiving time of the light receiving device; and an output section that outputs a measurement result according to i) the light receiving time and ii) an amount of the second light received by the light receiving device.

Abstract: A blood testing unit is provided with a closed vessel having an outer vessel body and an inner vessel body, and a reagent layer is accommodated in the closed vessel. Reagents which react with a blood sample are supported on the reagent layer. The closed vessel is comprised such that at least either one of the outer vessel body and the inner vessel body is provided with an aperture, through which air is capable of being introduced from the exterior to the interior of the one vessel body, and the one vessel body is provided with a sealing member for closing the aperture.

Abstract: A blood testing unit comprises a closed vessel having a blood introducing section formed at a certain area of the closed vessel. A blood constituent separating section is located within the closed vessel to separate plasma and/or serum from the blood sample introduced through the blood introducing section into the closed vessel. A reagent layer is located within the closed vessel, such that the reagent layer can be seen from the exterior. The reagent layer comprises a region for spreading the plasma and/or the serum, which has been separated by the blood constituent separating section from the blood sample, and a reagent supporte donor in the spreading region, the reagent undergoing a reaction with the plasma and/or the serum and forming a color as a result of the reaction.

Abstract: A plurality of different kinds of reagents are supported at different positions on a reagent layer. A humoral testing apparatus irradiates measuring light which has a wavelength adapted to one of the plurality of the reagent areas which forms a color, and detects the intensity of the light reflected from the reagent areas with the photodetector with respect to each of the reagents, and thus detects the optical densities of the reagent areas.

Abstract: A blood testing unit comprises a closed vessel having a blood introducing section formed at a certain area of the closed vessel. A blood constituent separating section is located within the closed vessel to separate plasma and/or serum from the blood sample introduced through the blood introducing section into the closed vessel. A reagent layer is located within the closed vessel, such that the reagent layer can be seen from the exterior. The reagent layer comprises a region for spreading the plasma and/or the serum, which has been separated by the blood constituent separating section from the blood sample, and a reagent supported on or in the spreading region, the reagent undergoing a reaction with the plasma and/or the serum and forming a color as a result of the reaction.

Abstract: A control serum for a dry process is provided that does not show misfit in measurement values by the dry process and a wet process. The above-mentioned control serum is obtained by freezing or freeze-drying a control serum without dialysis.

Abstract: An optical measuring apparatus comprises: an illuminating section that illuminates a first object with a first light; a light changing section that changes an intensity of the first light illuminating the first object; a light receiving device that receives a second light transmitted through or reflected from the first object; and an output section that outputs a measurement result according to i) a state of the light changing section and ii) an amount of the second light received by the light receiving device. In addition, an optical measuring apparatus comprises: the illuminating section; the light receiving device; a light receiving time changing section that changes a light receiving time of the light receiving device; and an output section that outputs a measurement result according to i) the light receiving time and ii) an amount of the second light received by the light receiving device.

Abstract: A control serum for a dry process is provided that dose not show misfit in measurement values by the dry process and a wet process. The above-mentioned control serum is obtained by freezing or freeze-drying a control serum without dialysis.

Abstract: A blood testing unit comprises a closed vessel having a blood introducing section formed at a certain area of the closed vessel. A blood constituent separating section is located within the closed vessel to separate plasma and/or serum from the blood sample introduced through the blood introducing section into the closed vessel. A reagent layer is located within the closed vessel, such that the reagent layer can be seen from the exterior. The reagent layer comprises a region for spreading the plasma and/or the serum, which has been separated by the blood constituent separating section from the blood sample, and a reagent supporte donor in the spreading region, the reagent undergoing a reaction with the plasma and/or the serum and forming a color as a result of the reaction.

Abstract: A humoral testing apparatus in which a measuring light is irradiated to a reagent area forming a color as a result of a reaction and an optical density of the reagent area is detected by a detecting operation of light intensity of the reflected light. The humoral testing apparatus enables a humoral test to be performed accurately in cases where nonuniformity occurs with the reaction of a reagent with a humoral sample within the reagent area, or in cases where fine dust is present within each detecting spot in the reagent areas.

Abstract: With a humoral testing apparatus for use with a humoral testing unit in which a plurality of different kinds of reagents are supported at different positions of a reagent layer, a measuring light is irradiated to the reagent areas which has formed a color, and the intensities of the light reflected from the reagent areas are detected with a photodetector through distributed index lenses. The detecting of the intensity of the light having been reflected from each of the reagent areas is performed from the side of one surface of the reagent layer opposite to the other surface of the reagent layer, on which other surface a bodily fluid has been supplied to the reagent areas.

Abstract: A blood testing unit is provided with a closed vessel having an outer vessel body and an inner vessel body, and a reagent layer is accommodated in the closed vessel. Reagents which react with a blood sample are supported on the reagent layer. The closed vessel is comprised such that at least either one of the outer vessel body and the inner vessel body is provided with an aperture, through which air is capable of being introduced from the exterior to the interior of the one vessel body, and the one vessel body is provided with a sealing member for closing the aperture.

Abstract: A plurality of different kinds of reagents are supported at different positions on a reagent layer. A humoral testing apparatus irradiates measuring light which has a wavelength adapted to one of the plurality of the reagent areas which forms a color, and detects the intensity of the light reflected from the reagent areas with the photodetector with respect to each of the reagents, and thus detects the optical densities of the reagent areas.

Abstract: A blood constituent separating membrane constituted substantially of polysulfone membrane separates blood plasma and/or blood serum from a blood sample. Reagents which are supported on the reagent layer have a portion for spreading the blood plasma and/or the blood serum separated from the blood sample, and when the reagent layer comes into contact with the blood constituent separating membrane, the blood plasma and/or the blood serum spreads over the reagent layer. The reagent forms a color as a result of a reaction with the blood plasma and/or the blood serum.

Abstract: A control serum for a dry process is provided that dose not show misfit in measurement values by the dry process and a wet process. The above-mentioned control serum is obtained by freezing or freeze-drying a control serum without dialysis.

Abstract: A dry analytical element for quantitatively analyzing creatine kinase MB isozyme is composed of a support and a creatine kinase MB isozyme-detecting agent layer. The detecting layer contains an antibody which specifically inhibits activity of M sub-unit of creatine kinase, creatine phosphate and adenosine diphosphate which react with each other to give adenosine triphosphate in the presence of creatine kinase MB isozyme, a buffer compound which keeps the layer in the range of pH 5.5 to pH 8.5 for the formation of adenosine triphosphate, and an indicator composition which reacts with the formed adenosine triphosphate to give a spectroscopically detectable compound, said indicator composition having hexokinase, nicotinamide-adenine dinucleotide or its phosphate in an oxidized form, and glucose-6-phosphate dehydrogenase but not containing glucose in such amount as to give the spectroscopically detectable compound.

Abstract: A dynamic circuit that prevents a malfunction, even when the operating temperature is high, including a pre-charging circuit connected between a power source node and a signal wiring, a plurality of discharging circuits being connected between a power source node and a signal wiring, a plurality f discharging circuit connected between the signal wiring and a ground potential respectively and for being selectively turn-ON/OFF controlled, a leakage current detecting circuit for detecting a current corresponding to a leakage current generated between the signal wiring and the ground potential in the turn-OFF state of each discharging circuit, and a leakage current correcting circuit connected between the power source node and the signal wiring and for continuously supplying to the signal wiring a leakage correction current equivalent to a leakage current of the signal wiring corresponding to a detected current of the leakage current detecting circuit during a leakage current correction period.

Abstract: A dry analytical element for quantitatively analyzing creatine kinase is composed of a support and a creatine kinase-detecting agent layer. The creatine kinase-detecting agent layer contains creatine phosphate and adenosine diphosphate which react with each other to give adenosine triphosphate in the presence of creatine kinase, a buffer compound having a sulfonic acid group which keeps the layer in the range of pH 5.5 to pH 8.5 for the formation of adenosine triphosphate, and an indicator composition which reacts with the formed adenosine triphosphate to give a spectroscopically detectable compound. An analytical element for analysis of creatine kinase MB isozyme further contains in the layer an antibody which specifically inhibits activity of M sub-unit of creatine kinase.