Abstract: An object of the present invention is to provide, in order to quantify a detection target substance contained in a specimen, a specimen diluent capable of reducing an influence of contaminants, that is, noise with respect to a quantitative value of a detection target to obtain favorable signal sensitivity, a method for preparing a sample, a sample, and a sandwich method. A specimen diluent of the present invention is a specimen diluent used in a sandwich method, the specimen diluent containing 10 mM to 500 mM of a compound having a structure represented by formula (I) and 10 mM to 500 mM of a compound having a thiol group.

Abstract: A liquid delivery system according to the present invention is a liquid delivery system for supplying liquid to an inspection chip formed of a well main body for accommodating the liquid and a side wall member arranged on a side surface of the well main body or recovering the liquid present in the inspection chip via a liquid delivery tool, the system including a conveyance unit which conveys the liquid delivery tool, and a control unit which controls such that the liquid delivery tool does not pass through a region on a side on which the side wall member is arranged of the inspection chip.

Abstract: A work vehicle includes: a wheel support member configured to support a pair of left and right traveling wheels; a link mechanism configured to support the wheel support member such that the wheel support member can be raised and lowered, the link mechanism being provided spanning between a vehicle body and the wheel support member; a suspension mechanism configured to elastically support the wheel support member, the suspension mechanism being provided spanning between a suspension support portion, which is formed on the vehicle body, and the wheel support member; and a lateral link configured to restrict leftward and rightward movement of the wheel support member, the lateral link being joined to a vehicle body-side support portion, which is formed on the vehicle body, and to a wheel-side support portion, which is formed on the wheel support member, wherein the link mechanism has: an upper link with an front end portion supported so as to be able to pivot up and down around an upper pivot axis by a link sup

Abstract: A first frame having a first through-hole is arranged on a support so that one opening of the first through-hole is closed. A liquid containing a capturer for capturing a substance to be detected is fed into the first through-hole, and the capturer is immobilized on the support exposed in the first through-hole. After removing the liquid from the support, a second frame having the second through-hole is arranged on the support in the first through-hole so that one opening of the second through-hole is closed.

Abstract: The present invention provides a sandwich assay for quantifying a glycoprotein, which is a substance to be detected, in a sample using a labeled lectin, wherein the effect attributed to a contaminant, namely noise on the quantified value of the substance to be detected, is suppressed by introduction of a simple treatment. The sandwich assay includes a treatment for inhibiting the binding of the labeled lectin to a sugar chain carried by the contaminant non-specifically adsorbed to the measurement region, which contaminant is contained in the sample and which sugar chain is the same as that of the substance to be detected.

Abstract: A first frame having a first through-hole is arranged on a support so that one opening of the first through-hole is closed. A liquid containing a capturer is fed into the first through-hole, and a capturer is immobilized on the support exposed in the first through-hole. After removing the liquid from the support, a second frame having the second through-hole is arranged on the support in the first through-hole so that one opening of the second through-hole is closed.

Abstract: An antigen detection method detects an antigen having a specific sugar chain in a sample with a lectin that binds to plural kinds of sugar chains including the specific sugar chain. The detection method includes: a first step of bringing the lectin into contact with the sample; a second step of bringing a glycohydrolase capable of cleaving at least one kind of sugar chain to which the lectin can bind into contact with the sample, the at least one kind of sugar chain excluding the specific sugar chain among the plural kinds of sugar chains; and a step of detecting the antigen bound with the lectin after the first and second steps.

Abstract: The present invention provides methods that are for acquiring various types of supplementary information used for diagnosis or treatment of prostate cancer, and that can be implemented in a less-invasive manner at a low cost. Provided are, by measuring the content of prostate specific antigen (PSA) having a ?-N-acetylgalactosamine residue at a non-reducing terminal of a sugar chain in a specimen, and comparing the measured value with a threshold value, (1) a method for estimating whether a Gleason score (primary pattern and secondary pattern) is not less than or less than a prescribed value, (2) a method for estimating whether the pathological stage (pT) is not less than or less than a prescribed value, and (3) a method for acquiring information for assessment indicating diagnosis or treatment should be actively conducted because a GS at gross total removal is expected to be higher than a GS at biopsy.

Abstract: The present invention relates to a method for acquiring auxiliary information for diagnosis and treatment (medical care) of prostate cancer. A method for acquiring medical care auxiliary information for estimating a risk of prostate cancer recurrence with a specimen of prostate tissue, wherein an at least three-stage evaluation score is used to express a quantity of biological material in a tumor site of the specimen, the biological material having a ?-N-acetylgalactosamine residue at a nonreducing terminal of a sugar chain.

Abstract: The present invention provides a method by which lung squamous cell carcinoma can be detected in a simple and prompt manner with high detection performance; and the like. The method according to the present invention detects lung squamous cell carcinoma by an assessment including the steps of: (1) performing measurement of the desmoglein 3 content in a blood sample collected from a subject; and (2) comparing the desmoglein 3 content determined by the measurement with the desmoglein 3 content in a blood sample collected from a healthy individual so as to estimate the presence of lung squamous cell carcinoma in the subject when the desmoglein 3 content is higher in the blood sample collected from the subject.

Abstract: An inspection chip according to the present invention is an inspection chip for stirring liquid by a circular movement of a bottom surface end, including a well main body for accommodating the liquid and a side wall member arranged on a side surface of the well main body. The bottom surface end has a bottom surface structure in contact with a rotating member for allowing the bottom surface end to perform the circular movement in a position leaning from a center line of the well main body toward the side wall member.

Abstract: A method of analyzing diagnostic information for estimating which of a benign prostate disease and prostate cancer is affecting a subject to be diagnosed combines two methods of analyzing diagnostic information. The first method includes measuring a concentration of a mucin-1 (Tn-MUC1), reactive with a lectin that recognizes and binds to an N-acetyl-D-galactosamine->serine(threonine) residue, in a subject blood sample, comparing the measured value with a threshold value, and estimating that a disease affecting the subject is benign prostate disease when the measured value is greater than the threshold value.

Abstract: The present invention relates to variant SH2 domains for binding a phosphotyrosine (pTyr)-containing peptide. The variant SH2 domains of the present invention include a parent SH2 domain having at least one amino acid substitution in a pre-defined region of 15 amino acid positions of the parent SR2 domain, wherein said at least one amino acid substitution increases the affinity of the variant SH2 domain for the pTyr-containing peptide relative to the parent SH2 domain. The present application relates also to methods of using the variant SH2 domains in the treatment of protein kinase-associated disorders, or the diagnosis or prognosis of protein kinase-associated disorders, for isolating and measuring the concentration of pTyr-containing molecules, and as reagents in research.

Abstract: A method of analyzing diagnostic information, the method including: measuring a concentration of a mucin-1 (Tn-MUC1), which is reactive with a lectin that recognizes and binds to an N-acetyl-D-galactosamine?serine (threonine) residue, in a blood sample originated from a subject to be diagnosed; comparing the measured value with a threshold value; and estimating that a disease affecting the subject to be diagnosed is not prostate cancer but a benign prostate disease when the measured value of the concentration of Tn-MUC1 is greater than the threshold value.

Abstract: The present invention relates to variant SH2 domains for binding a phosphotyrosine (pTyr)-containing peptide. The variant SH2 domains of the present invention include a parent SH2 domain having at least one amino acid substitution in a pre-defined region of 15 amino acid positions of the parent SR2 domain, wherein said at least one amino acid substitution increases the affinity of the variant SH2 domain for the pTyr-containing peptide relative to the parent SH2 domain. The present application relates also to methods of using the variant SH2 domains in the treatment of protein kinase-associated disorders, or the diagnosis or prognosis of protein kinase-associated disorders, for isolating and measuring the concentration of pTyr-containing molecules, and as reagents in research.

Abstract: A method of analyzing diagnostic information, the method including: measuring the concentration of all mucin-1s (total MUC1) in a blood sample originated from a subject to be diagnosed; comparing the measured value with a threshold value; and estimating that a disease affecting the subject to be diagnosed is not prostate cancer but a benign prostate disease when the measured value of the concentration of total MUC1 is greater than the threshold value.

Abstract: Provided is a method of obtaining an index value used for pathological tissue diagnosis of prostate cancer, which method has low invasiveness and can be performed at a low cost. The method is a method of estimating a Gleason score that represents the malignancy of prostate cancer, which method includes: measuring the content of a prostate-specific antigen having an N-acetylgalactosamine residue at a non-reducing terminal of a sugar chain in a sample; and estimating that the Gleason score is 7 or higher when the thus measured value is larger than a threshold value, or estimating that the Gleason score is 6 or lower when the measured value is smaller than a threshold value. The prostate-specific antigen is preferably quantified by a method including the step of binding a molecule having an affinity for ?-N-acetylgalactosamine residue, such as Wisteria floribunda lectin, soybean agglutinin, Vicia Villosa lectin or an anti-?-N-acetylgalactosamine antibody, to the prostate-specific antigen.