K4687-100
K4687-100? Microplate coated with Prolactin MAb, 96 wells ? Prolactin Standard: (0.5 ml) (ready to use) ? Enzyme Conjugate (ready to use) ? Wash Concentrate (20X) ? TMB Substrate (ready to use) ? Stop Solution (ready to use) SerumProlactin (human) ELISA Kit: Rapid & convenient colorimetric assay for quantitative measurement of human Prolactin in serum. 100 assays. Prolactin (PRL) is secreted from the anterior pituitary gland in both men and woman. Women normally have slightly higher basal prolactin levels than men. During and following pregnancy, prolactin, in association with other hormones, stimulates breast development and milk production. Hypersecretion of prolactin can be caused by pituitary tumors, hypothalamic diseases, hypothyroidm, renal failure, acute exercise and several medications. Hyperprolactinemia inhibits hypogonadism in men and women with accompanying low FSH and LH levels. BioVision’s Prolactin kit is a solid phase direct sandwich ELISA Kit. The samples, and anti-Prolactin HRP conjugate are added to the wells coated with monoclonal antibody to Prolactin. Prolactin in the sample binds to anti-Prolactin Mab on the well and the anti-Prolactin HRP then binds to Prolactin. Unbound Protein and HRP conjugate is washed off by wash buffer. Upon the addition of the substrate, the intensity of color is proportional to the concentration of Prolactin in the samples. A standard curve is prepared relating color intensity to the concentration of the Prolactin.
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K4688-100
K4688-100? Microplate coated with Prolactin MAb, 96 wells ? Prolactin Standard: (0.5 ml) (ready to use) ? Biotinylated Antibody reagent (ready to use) ? Streptavidin Enzyme Conjugate (ready to use) ? Wash Concentrate (20X) ? TMB Substrate (ready to use) ? Stop Solution (ready to use) ? Serum & plasma Prolactin (mouse/rat) ELISA Kit: Rapid & convenient colorimetric assay for quantitative measurement of mouse/rat Prolactin in serum & plasma. 100 assays. Prolactin is secreted from the anterior pituitary gland. Plasma and pituitary PRL levels are significantly greater in adult female than in male rats. This difference is thought to be brought about by ovarian steroids. A similar sex difference was found in pituitary PRL content in normal mice from 30 days of age. During and following pregnancy, prolactin, in association with other hormones, stimulates breast development and milk production. Hypersecretion of prolactin can be caused by pituitary tumors, hypothalamic diseases, hypothyroidm, renal failure, acute exercise and several medications. BioVision’s Prolactin kit is a solid phase sandwich ELISA Kit. The samples and biotinylated anti-prolactin antibodies are added to the wells coated with polyclonal antibody to prolactin. Prolactin in samples binds to the anti-prolactin polyclonal antibody on the well and the biotinylated anti-prolactin antibody binds to prolactin. Unbound protein and biotin conjugate are washed off by wash buffer. Horseradish peroxidase conjugated streptavidin is added to each wells and the streptavidin is allowed to bind to the biotin in the complex. Unbound enzyme conjugate is washed off. Upon the addition of the substrate, the intensity of color is proportional to the concentration of prolactin in the samples. A standard curve is prepared relating color intensity to the concentration of the prolactin.
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K7432-100
K7432-100? Microwells coated with f-PSA MAb ? f-PSA Standard ? Anti-f-PSA Conjugate Reagent ? Wash Buffer (20X) ? TMB Substrate ? Stop Solution Serum Prostate Specific Antigen (Free, human) ELISA Kit: Rapid & convenient colorimetric assay for quantitative measurement of human free Prostate Specific Antigen. Sensitivity: 0.1 ng/ml. 100 assays. Human Prostate Specific Antigen (PSA) is a 33 kD serine proteinase which, in human serum, is predominantly bound to alpha 1-antichymotrypsin (PSA-ACT) and alpha 2-macroglobulin (PSAAMG). Trace amounts of alpha 1-antitrypsin and inter-alpha trypsin inhibitor bound to PSA can also be found. Any remaining PSA is in the free form (f-PSA). 1-3 Current methods of screening men for prostate cancer utilize the detection of the major PSA-ACT form. Levels of 4.0 ng/ml or higher are strong indicators of the possibility of prostatic cancer.4 However, elevated serum PSA levels have also been attributed to benign prostatic hyperplasia and prostatitis, leading to a large percentage of false positive screening results.5 A potential solution to this problem involves the determination of free PSA levels.6-17 Preliminary studies have suggested that the percentage of free PSA is lower in patients with prostate cancer than those with benign prostatic hyperplasia.2 Thus, the measurement of free serum PSA in conjunction with total PSA, can improve specificity of prostate cancer screening in selected men with elevated total serum PSA levels, which would subsequently reduce unnecessary prostate biopsies with minimal effects on cancer detection rates. BioVision’s free-PSA kit is a solid phase direct sandwich ELISA method. The samples and diluted anti-f-PSA-HRP conjugate are added to the wells coated with MAb to f-PSA. The f-PSA molecules present in the standard solution or sera are "sandwiched" between the two antibodies. Following the formation of the coated antibody-antigen-antibody-enzyme complex, the unbound protein and HRP-conjugate are washed off by wash buffer. Upon the addition of the substrate, the intensity of color is proportional to the concentration of f-PSA. Sensitivity: 0.1 ng/ml
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K7431-100
K7431-100? Microwells coated with Streptavidin ? PSA Standard* ? Anti-PSA Conjugate Reagent ? Wash Buffer (20X) ? TMB Substrate ? Stop Solution Serum Prostate Specific Antigen (Total, human) ELISA Kit: Rapid & convenient colorimetric assay for quantitative measurement of human total Prostate Specific Antigen. Sensitivity: 0.0144 ng/ml. 100 assays. Prostate Specific Antigen (PSA) is useful in the management of patients with prostate cancer. It is a single chain glycoprotein produced by epithelial cells of the prostate gland. The measurement of serum PSA has become the most accepted test to indicate men who are at risk of having prostate cancer and who should be examined by other tests. Using a cut-off of 4 ng/ml, 92% of men over 50 years of age with malignant prostatic tissues, 8% of healthy men and 28% of men with benign prostate hyperplasia (BPH) test positive for PSA. Three major forms of PSA exist in the serum: free PSA, bound PSA and complex PSA. Bound PSA is found in higher concentrations in patients with prostate cancer; whereas, free PSA is detected in higher concentrations in patients with BPH. If the free PSA to total PSA ratio is >25%, it is unlikely that the patient has prostate cancer; whereas, if free PSA is <16% then prostate cancer is likely to be the cause. Serial measurement of PSA concentration in the serum is an important tool in monitoring patients with prostatic cancer and determining the potential and actual effectiveness of surgery or other therapies, or may allow for earlier discovery of residual or recurrent carcinoma after radical prostatectomy or radiotherapy. BioVision’s PSA ELISA kit is a solid phase assay based on a streptavidin-biotin principle. The standards, samples and a reagent mixture of Anti-PSA Enzyme and Biotin conjugates (conjugate reagent) are added into the wells, coated with Streptavidin. PSA in the serum sample forms a sandwich between two highly specific Anti-PSA antibodies, labeled with Biotin and HRP. Simultaneously, the biotinylated antibody is immobilized onto the well through a high affinity Streptavidin-Biotin interaction. Unbound protein and excess biotin/enzyme conjugated reagent are washed off, by washing buffer. Upon the addition of the substrate, the intensity of color developed is directly proportional to the concentration of PSA in the samples. A standard curve is prepared relating color intensity to the concentration of the PSA.
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K4771-100
K4771-100? RANTES Microplate (Item A) coated with anti-mouse RANTES, 96 wells ? Wash Buffer Concentrate (20x) (Item B) ? Standards (Item C) (recombinant mouse RANTES) ? Assay Diluent A (Item D) for Standard/Sample (serum/plasma) diluent (0.09% sodium azide as preservative) ? Assay Diluent C (Item L) for Standard/Sample (cell culture medium) diluent ? Assay Diluent B (Item E) for Detection Antibody & HRP-Streptavidin diluent. (5x concentrated) ? Detection Antibody RANTES (Item F), biotinylated anti-mouse RANTES (each vial enough for half plate) ? HRP-Streptavidin Concentrate (Item G), 200x concentrated ? TMB One-Step Substrate Reagent (Item H) 3,3’,5,5’-tetramethylbenzidine (TMB) in buffer solution ? Stop Solution (Item I), 0.2 M sulfuric acid ? Serum & plasma ? Cell culture supernatants RANTES (mouse) ELISA Kit: Colorimetric Assay for Quantitative measurement of mouse RANTES in Serum, Plasma & Cell culture supernatants. Detection Range: 1 pg/ml - 200 pg/ml. 100 assays. BioVision’s Mouse RANTES (Regulated upon activation, Normal T cell Expressed and presumably Secreted) ELISA (Enzyme-Linked Immunosorbent Assay) kit is an in vitro enzyme-linked immunosorbent assay for the quantitative measurement of mouse RANTES. This assay employs an antibody specific for mouse RANTES coated on a 96-well plate. Standards and samples are pipetted into the wells and RANTES present in a sample is bound to the wells by the immobilized antibody. The wells are washed and biotinylated anti-mouse RANTES antibody is added. After washing away unbound biotinylated antibody, HRP-conjugated streptavidin is pipetted to the wells. The wells are again washed, a TMB substrate solution is added to the wells and color develops in proportion to the amount of RANTES bound. The Stop Solution changes the color from blue to yellow, and the intensity of the color is measured at 450 nm. This ELISA kit shows no cross-reactivity with the following cytokines tested: Mouse CD30, L CD30, T CD40, CRG-2, CTACK, CXCL16, Eotaxin , Eotaxin-2, Fas Ligand, Fractalkine, GCSF, GM-CFS, IFN- γ, IGFBP-3, IGFBP-5, IGFBP-6, IL-1 α, IL-1β, IL-2, IL-3, IL-3 Rb, IL-4, IL-5, IL-9, IL-10, IL-12 p40/p70, IL-12 p70, IL-13, IL-17, KC, Leptin R, LEPTIN(OB), LIX, L-Selectin, Lymphotactin, MCP-1, MCP-5, M-CSF, MIG, MIP-1α, MIP-1γ, MIP-2, MIP-3β, MIP-3α, PF-4, P-Selectin, SCF, SDF-1α, TARC, TCA-3, TECK, TIMP-1, TNF-α, TNF RI, TNF RII, TPO, VCAM-1, VEGF. The minimum detectable dose of RANTES is typically less than 1 pg/ml. Detection Range: 1 pg/ml - 200 pg/ml. The intra-Assay reproducibility is CV<10% & inter-Assay is CV<12%.
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K4911-100
K4911-100? Pre-coated Microtiter Plate ? Wash Buffer (10X) ? Diluent (5X) ? Detection Antibody ? Detector 100X (Hrp conjugated anti-IgG) ? Human RBP4 Standard (lyophilized, 5 μg) ? Human RBP4 QC Sample (lyophilized) ? Substrate Solution I (TMB) ? Substrate Solution II (Peroxidase) ? Stop Solution ? Plate Sealers Serum, urine, or cell culture supernatantRBP4 (human) Competitive ELISA Kit: Colorimetric Assay for in vitro Quantitative Determination of human RBP4 in Serum, Plasma, Urine and Cell Culture Supernatant. Assay Range 0.001 – 5 μg RBP4/ml and detection limit 1 ng/ml. 100 Assays.Retinol binding protein (RBP) 4 is the only specific transport protein for vitamin A in the circulation whose function is to deliver vitamin to target tissues. In obesity and type 2 diabetes, the expression of Glut4 is significantly impaired in adipocytes. Glucose transport via Glut4 is the rate-limiting step for glucose use by muscle and adipose tissue. Adipocyte-specific deletion of Gluts leads to notable elevation of mouse RBP4 causing systemic insulin resistance, and that reduction of RBP4 improves insulin resistance. This identified a novel role of RBP4 in regulating insulin action and RBP4 is recorded as an adipocyte-derived hormone. The RBP4 (human) ELISA Kit is to be used for the in vitro quantitative determination of human RBP4 in serum, urine and cell culture supernatant. This assay is a competitive ELISA which utilizies a 96-well microtiter plate which was pre-coated with a human RBP4. A purified polyclonal which recognizing native human RBP4 reacts with a series of predetermined recombinant human RBP4 standard proteins or the test samples under competition in the human RBP4-coated plate. Their relative reactivity is plotted with that of the standard proteins. This ELISA is specific for the measurement of natural and recombinant human RBP4. It does not cross-react with mouse RBP4, rat RBP4, human adiponectin, rat adiponectin, human resistin, human vaspin, human clusterin, human leptin, human IL-23, human IL-33, human GPX3, human Nampt, human ANG1, human ANG2, human ANGPTL3, human ANGPTL4, human ANGPTL6, human FABP4, human RELM-β, rat RELM-α, mouse Nampt, human PAI-1. The assay range is 0.001 – 5 μg RBP4/ml and a detection limit of 1 ng/ml (based on adding two standard deviations to the mean value of the (50) zero standards).
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K4912-100
K4912-100? Pre-coated Microtiter Plate ? Wash Buffer (10X) ? Diluent (5X) ? Detection Antibody ? Detector 100X (Hrp conjugated anti-IgG) ? Human RBP4 Standard (lyophilized, 50 ng) ? Human RBP4 QC Sample (lyophilized) ? Substrate Solution I (TMB) ? Substrate Solution II (Peroxidase) ? Stop Solution ? Plate Sealers Cell and tissue culture supernatants, urine, plasma, serum, as well as many other biological fluidsRBP4 (human) ELISA Kit: Colorimetric Assay for in vitro Quantitative Determination of Human RBP4 in Serum, Plasma, Urine and Cell Culture Supernatant. Assay Range 0.39 – 25 ng RBP4/ml and Detection limit 380 pg/ml. 100 Assays. Retinol binding protein (RBP) 4 is the only specific transport protein for vitamin A in the circulation whose function is to deliver vitamin to target tissues. In obesity and type 2 diabetes, expression of Glut4 is significantly impaired in adipocytes. Glucose transport via Glut4 is the rate-limiting step for glucose use by muscle and adipose tissue. Adipocyte-specific deletion of Gluts leads to notable elevation of RBP4 causing systemic insulin resistance, and that reduction of RBP4 improves insulin resistance. This identified a novel role of RBP4 in regulating insulin action and RBP4 is recorded as an adipocyte-derived hormone. The RBP4 (human) ELISA Kit is to be used for the in vitro quantitative determination of human RBP4 in biological fluids. This assay is a sandwich ELISA which utilizies a 96-well microtiter plate which was pre-coated with a monoclonal antibody and a purified polyclonal detection antibody. A HRP-conjugated anti-IgG, peroxidase and TMB (3,3’,5,5’-tetramethylbenzidine) is added to generate a color intensity directly proportional to the concentration of RBP4 in the samples. This ELISA is specific for the measurement of natural and recombinant human RBP4. It does not cross-react with mouse RBP4, rat RBP4, human adiponectin, human resistin, human vaspin, human clusterin, human leptin, human IL-33, human GPX3, human progranulin, human FABP4, human ANGPTL3, human ANGPTL4, human ANG1, human ANG2, human Nampt, mouse Nampt. The assay range is 0.39 – 25 ng RBP4/ml and a detection limit of 380 pg/ml (based on adding two standard deviations to the mean value of the (50) zero standards).
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K4913-100
K4913-100? Pre-coated Microtiter Plate ? Wash Buffer (10X) ? Diluent (5X) ? Detection Antibody ? Detector 100X (Hrp conjugated anti-IgG) ? Mouse RBP4 Standard (lyophilized, 24 ng) ? Mouse RBP4 QC Sample (lyophilized) ? Substrate Solution I (TMB) ? Substrate Solution II (Peroxidase) ? Stop Solution ? Plate Sealers Serum, urine, or cell culture supernatantRBP4 (mouse/rat) ELISA Kit: Colorimetric Assay for in vitro Quantitative Determination of Mouse or Rat RBP4 in Serum, Plasma, Urine and Cell Culture Supernatant. Assay Range 0.188 – 12 ng RBP4/ml and Detection limit 60 pg/ml. 100 Assays.Retinol binding protein (RBP) 4 is the only specific transport protein for vitamin A in the circulation whose function is to deliver vitamin to target tissues. In obesity and type 2 diabetes, expression of Glut4 is significantly impaired in adipocytes. Glucose transport via Glut4 is the rate-limiting step for glucose use by muscle and adipose tissue. Adipocyte-specific deletion of Gluts leads to notable elevation of mouse RBP4 causing systemic insulin resistance, and that reduction of RBP4 improves insulin resistance. This identified a novel role of RBP4 in regulating insulin action and RBP4 is recorded as an adipocyte-derived hormone. The RBP4 (mouse/rat) ELISA Kit is to be used for the in vitro quantitative determination of mouse or rat RBP4 in serum, urine and cell culture supernatant. This assay is a sandwich ELISA which utilizies a 96-well microtiter plate which was pre-coated with a monoclonal antibody and a purified polyclonal detection antibody. A HRP-conjugated anti-IgG, peroxidase and TMB (3,3’,5,5’-tetramethylbenzidine) is added to generate a color intensity directly proportional to the concentration of RBP4 in the samples. This ELISA is specific for the measurement of natural and recombinant mouse and rat RBP4. It does not cross-react with human RBP4, mouse adiponectin, mouse resistin, mouse Nampt, rat adiponectin, rat resistin, rat Nampt, mouse RELM-α, mouse RELM-β, human leptin, rat RELM-α, mouse 41BBL, mouse CD137, mouse Tim3, human TNF-α. The assay range is 0.188 – 12 ng RBP4/ml and a detection limit of 60 pg/ml (based on adding two standard deviations to the mean value of the (50) zero standards).
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K4919-100
K4919-100? 1 plate coated with human Resistin Antibody ? 1 bottle Wash Buffer 10X ? 1 bottle Diluent 5X ? 1 bottle Detection Antibody ? 1 vial Detector 100X (HRP Labeled Streptavidin) ? 1 vial human Resistin Standard (lyophilized) ? 1 vial human Resistin QC sample (lyophilized) ? 1 bottle Substrate Solution I (TMB) ? 1 bottle Substrate Solution II (Peroxidase) ? 1 bottle Stop SolutionCell and tissue culture supernatants, urine, plasma, serum, as well as many other biological fluidsResistin (human) Serum ELISA Kit: Colorimetric Assay for in vitro Quantitative Determination of Human Resistin in Serum, Plasma or Cell Culture Supernatant. Assay Range 0.125–8 ng/ml and Detection limit 100 pg/ml.100 Assays. Obesity is a well-known risk factor of type 2 diabetes mellitus and is strongly associated with insulin resistance. Resistin (also called FIZZ3/ADSF) is an adipocyte-derived peptide first identified during a search for targets of thiazolidinediones. Serum concentrations of resistin are markedly increased in obese mice and are decreased by treatment with thiazolidinediones. It was also found that administration of an anti-resistin antibody increases insulin-stimulated glucose uptake in obese mice and that treatment of normal mice with recombinant resistin impairs insulin action. Thus, resistin might link obesity with insulin resistance and diabetes in mice models. However, subsequent studies in rodent models have produced disparate findings on the role of resistin in obesity and insulin resistance. In humans, while the expression of resistin in human adipocytes is very low compared with that seen in rodents and does not differ between normal, insulin-resistant or type 2 diabetic individuals, a more recent study using a large size of case suggests that the plasma resistin levels are increased in type 2 diabetes. Therefore determination of the plasma resistin levels may be important for understanding onsets of metabolic diseases such as type 2 diabetes or obesity. This assay is a sandwich Enzyme Linked-Immunosorbent Assay (ELISA) for quantitative determination of human resistin in biological fluids. A monoclonal antibody specific for resistin has been precoated onto the 96-well microtiter plate. Standards and samples are pipetted into the wells for binding to the coated antibody. After extensive washing to remove unbound compounds, resistin is recognized by the addition of a biotinylated polyclonal antibody specific for resistin (Detection Antibody). After removal of excess biotinylated antibody, HRP labeled streptavidin (Detector) is added. Following a final washing, peroxidase activity is quantified using the substrate 3,3’,5,5’-tetramethylbenzidine (TMB). The intensity of the color reaction is measured at 450 nm after acidification and is directly proportional to the concentration of resistin in the samples. The assay range is 0.125–8 ng/ml resistin/ml. The lowest level of resistin that can be detected by this assay is 100 pg/ml.
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K4767-100
K4767-100? Resistin Microplate (Item A) coated with secondary antibody, 96 wells ? Wash Buffer Concentrate (20x) (Item B) ? Standard Resistin Peptide (Item C) (10 μl/vial) ? Anti-Resistin polyclonal antibody (item N) (5 μl/vial) ? Assay Diluent A (Item D) for Standard/Sample (serum/plasma) diluent (0.09% sodium azide as preservative) ? Assay Diluent B (Item E) for Standard/Sample (cell culture medium or other sample) diluent. (5x concentrated) ? Biotinylated Resistin peptide (Item F), (20 μl/vial) ? HRP-Streptavidin Concentrate (Item G), 160x concentrated ? Positive Control (Item M) (100 μl) ? TMB One-Step Substrate Reagent (Item H) 3,3’,5,5’-tetramethylbenzidine (TMB) in buffer solution ? Stop Solution (Item I), 0.2 M sulfuric acid ? Serum & plasma ? Culture supernatants & cell lysates Resistin (human/mouse/rat) ELIA Kit: Colorimetric Assay for Quantitative Determination of human/mouse/rat Resistin in Serum, Plasma, Cell lysates & Cell culture supernatants. Detection Range: 0.1-1,000 ng/ml. 100 assays. BioVision’s Resistin [XCP-1 (CEBPE regulated myeloid-specific secreted cysteine-rich protein precursor 1), FIZZ3 (found in inflammatory zone 3), or ADSF (adipocyte-specific secretory factor)] Enzyme Immunoassay (EIA) Kit is an in vitro quantitative assay for detecting Resistin peptide based on the principle of Competitive Enzyme Immunoassay. The microplate in the kit is pre-coated with anti-rabbit secondary antibody. After a blocking step and incubation of the plate with anti-Resistin antibody, both biotinylated Resistin peptide and peptide standard or targeted peptide in samples interacts competitively with the Resistin antibody. Uncompeted (bound) biotinylated Resistin peptide then interacts with Streptavidin-horseradish peroxidase (SAHRP), which catalyzes a color development reaction. The intensity of colorimetric signal is directly proportional to the amount of biotinylated peptide-SA-HRP complex and inversely proportional to the amount of Resistin peptide in the standard or samples. This is due to the competitive binding to Resistin antibody between biotinylated Resistin peptide and peptides in standard or samples. A standard curve of known concentration of Resistin peptide can be established and the concentration of Resistin peptide in the samples can be calculated accordingly. The minimum detectable concentration of Resistin is 446 pg/ml. The detection range for the kit is 0.1-1,000 ng/ml. The intra-Assay reproducibility is CV<10% & inter-Assay is CV<15%. This EIA kit detects Resistin (90 aa). No other active isoforms have been reported. This kit shows no cross-reactivity with the following cytokines tested: e.g., Ghrelin, Nesfatin, Angiotensin II, NPY and APC.
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K4920-100
K4920-100? 1 plate coated with mouse Resistin Antibody ? 1 bottle Wash Buffer 10X ? 1 bottle Diluent 5X ? 1 bottle Detection Antibody ? 1 vial Detector 100X (HRP Labeled Streptavidin) ? 1 vial mouse Resistin Standard (lyophilized) ? 1 vial mouse Resistin QC sample (lyophilized) ? 1 bottle Substrate Solution I (TMB) ? 1 bottle Substrate Solution II (Peroxidase) ? 1 bottle Stop SolutionCell and tissue culture supernatants, urine, plasma, serum, as well as many other biological fluidsResistin (mouse) Serum ELISA Kit: Colorimetric Assay for in vitro Quantitative Determination of Mouse Resistin in Serum, Plasma or Cell Culture Supernatant. Assay Range 0.47 – 30 ng/ml and Detection limit 100 pg/ml. 100 Assays. Obesity is a well-known risk factor of type 2 diabetes mellitus and is strongly associated with insulin resistance. Resistin (also called FIZZ3/ADSF) is an adipocyte-derived peptide first identified during a search for targets of thiazolidinediones. Serum concentrations of resistin are markedly increased in obese mice and are decreased by treatment with thiazolidinediones. It was also found that administration of an anti-resistin antibody increases insulin-stimulated glucose uptake in obese mice and that treatment of normal mice with recombinant resistin impairs insulin action. Thus, resistin might link obesity with insulin resistance and diabetes in mice models. However, subsequent studies in rodent models have produced disparate findings on the role of resistin in obesity and insulin resistance. In humans, while the expression of resistin in human adipocytes is very low compared with that seen in rodents and does not differ between normal, insulin-resistant or type 2 diabetic individuals, a more recent study using a large size of case suggests that the plasma resistin levels are increased in type 2 diabetes. Therefore determination of the plasma resistin levels may be important for understanding onsets of metabolic diseases such as type 2 diabetes or obesity. This assay is a sandwich Enzyme Linked-Immunosorbent Assay (ELISA) for quantitative determination of mouse resistin in biological fluids. A monoclonal antibody specific for resistin has been precoated onto the 96-well microtiter plate. Standards and samples are pipetted into the wells for binding to the coated antibody. After extensive washing to remove unbound compounds, resistin is recognized by the addition of a biotinylated polyclonal antibody specific for resistin (Detection Antibody). After removal of excess biotinylated antibody, HRP labeled streptavidin (Detector) is added. Following a final washing, peroxidase activity is quantified using the substrate 3,3’,5,5’-tetramethylbenzidine (TMB). The intensity of the color reaction is measured at 450 nm after acidification and is directly proportional to the concentration of resistin in the samples. The assay range is 0.47 – 30 ng/ml resistin/ml. The lowest level of resistin that can be detected by this assay is 100 pg/ml.
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K4923-100
K4923-100? Pre-coated Microtiter Plate ? Wash Buffer (10X) ? Diluent (5X) ? Lysis Buffer (10X) ? Detection Antibody ? Detector 100X (Hrp conjugated anti-IgG) ? Human Sirtuin 1 Standard (lyophilized, 4 ng) ? Human Sirtuin 1 QC Sample (lyophilized) ? TMB Substrate Solution ? Stop Solution ? Plate SealersCell lysatesSirtuin 1 (human intracellular) ELISA Kit: Colorimetric Assay for in vitro Quantitative Determination of Human Sirtuin 1 in cells. Assay Range 0.031 – 2 ng/ml and Detection limit 30 pg/ml.100 Assays. Sirtuin 1 is the human ortholog for the yeast Sir2 (silent information regulator 2) protein regulating epigenetic gene silencing as a possible antiaging effect. Sirtuin 1 is an NAD(+)-dependent histone deacetylase, which deacetylate lysines 9 and 14 of histone H3 and lysine-16 of histone H4, involved in various cellular functions such as transcription, energy sensing, and differentiation. Sirtuin1 plays an important role in regulating adipogenesis via repression of PPAR and the gluconeogenic/glycolytic pathways in liver in response to fasting signals through the transcriptional coactivator PGC1A deacetylated at specific lysine residues in an NAD(+)-dependent manner. This assay is a sandwich Enzyme Linked-Immunosorbent Assay (ELISA) for quantitative determination of human Sirtuin 1 in cells. A monoclonal antibody specific for Sirtuin 1 has been precoated onto the 96-well microtiter plate. Standards and samples are pipetted into the wells for binding to the coated antibody. After extensive washing to remove unbound compounds, Sirtuin 1 is recognized by the addition of a purified polyclonal antibody specific for Sirtuin 1 (Detection Antibody). After removal of excess polyclonal antibody, HRP conjugated anti-rabbit IgG (Detector) is added. Following a final washing, peroxidase activity is quantified using the substrate 3,3’,5,5’-tetramethylbenzidine (TMB). The intensity of the color reaction is measured at 450 nm after acidification and is directly proportional to the concentration of Sirtuin 1 in the samples. This ELISA is specific for the measurement of natural and recombinant human Sirtuin 1. It does not cross-react with human Sirtuin 2, human Sirtuin 5, human Sirtuin 6, human adiponectin, human resistin, human RBP4, human vaspin, human progranulin, human GPX3, human FTO, human Nampt, human leptin, mouse FTO, mouse Nampt. The assay range is 0.031 – 2 ng Sirtuin 1/ml and a detection limit of 30 pg/ml (based on adding two standard deviations to the mean value of the (50) zero standards).
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K4924-100
K4924-100? Pre-coated Microtiter Plate ? Wash Buffer (10X) ? Diluent (5X) ? Lysis Buffer (10X) ? Detection Antibody ? Detector 100X (Hrp conjugated anti-IgG) ? Human Sirtuin 2 Standard (lyophilized, 16 ng) ? Human Sirtuin 2 QC Sample (lyophilized) ? TMB Substrate Solution ? Stop Solution ? Plate SealersCell lysatesSirtuin 2 (human intracellular) ELISA Kit: Colorimetric Assay for in vitro Quantitative Determination of Human Sirtuin 2 in cells. Assay Range 0.125 – 8 ng/ml and Detection limit 80 pg/ml.100 Assays. Sirtuin 2 is a NAD-dependent histone deacetylase (39.5 kD) largely localized at the cytoplasm where it is physically associated with microtubules. SIRT2 was found to deacetylate lys40 of alpha-tubulin both in vitro and in vivo and colocalized and interacted in vivo with HDAC6, another tubulin deacetylase. It has been also shown that Sirtuin 2 is a regulator of mitotic progression that acts downstream from CDC14B in a pathway regulating mitotic exit or subsequent cytokinesis. This assay is a sandwich Enzyme Linked-Immunosorbent Assay (ELISA) for quantitative determination of human Sirtuin 2 in cells. A monoclonal antibody specific for Sirtuin 2 has been precoated onto the 96-well microtiter plate. Standards and samples are pipetted into the wells for binding to the coated antibody. After extensive washing to remove unbound compounds, Sirtuin 2 is recognized by the addition of a purified polyclonal antibody specific for Sirtuin 2 (Detection Antibody). After removal of excess polyclonal antibody, HRP conjugated anti-rabbit IgG (Detector) is added. Following a final washing, peroxidase activity is quantified using the substrate 3,3’,5,5’-tetramethylbenzidine (TMB). The intensity of the color reaction is measured at 450 nm after acidification and is directly proportional to the concentration of Sirtuin 2 in the samples. This ELISA is specific for the measurement of natural and recombinant human Sirtuin 2. It does not cross-react with human Sirtuin 1, human Sirtuin 5, human Sirtuin 6, human adiponectin, human resistin, human RBP4, human vaspin, human progranulin, human GPX3, human FTO, human Nampt, human leptin, mouse FTO, mouse Nampt. The assay range is 0.125 – 8 ng Sirtuin 2/ml and a detection limit of 80 pg/ml (based on adding two standard deviations to the mean value of the (50) zero standards).
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K7417-100
K7417-100? Microplate coated with Mouse Anti-Testosterone, 96 wells ? Standard: (0.5 ml) (ready to use) ? Assay Diluent ? Enzyme Conjugate (20X) ? Wash Buffer (20X) ? TMB Substrate (ready to use) ? Stop Solution (ready to use) Serum or plasma Testosterone (human) ELISA Kit: Rapid & convenient colorimetric assay for quantitative measurement of human Testosterone in serum or plasma. 100 assays. Testosterone is the most important androgen secreted into the blood. In males, testosterone is secreted primarily by the Leydig cells of the testes; in females ca. 50% of circulating testosterone is derived from peripheral conversion of androstenedione, ca. 25% from the ovary and ca. 25% from the adrenal glands. In women, high levels of testosterone are generally found in hirsutism and virilization, polycystic ovaries, ovarian tumors, adrenal tumors and adrenal hyperplasia. In men, high levels of testosterone are associated to the hypothalamic pituitary unit diseases, testicular tumors, congenital adrenal hyperplasia and prostate cancer. Low levels of testosterone can be found in patients with the following diseases: Hypopituitarism, Klinefelter’s syndrome, Testicular feminization, or chidectomy and Cryptorchidism, enzymatic defects and some autoimmune diseases. BioVision’s Testosterone EIA kit is based on the principle of competitive binding between Testosterone in the test specimen and Testosterone-HRP conjugate for a constant amount of mouse anti-Testosterone. In the incubation, mouse anti-Testosterone coated wells are incubated with 25 μl of Testosterone standards, controls, samples & 100 μl Testosterone-HRP conjugate reagent at room temperature for 60 min. During the incubation, a fixed amount of HRP-labeled Testosterone competes with the endogenous Testosterone in the standard, sample, or quality control serum for a fixed number of binding sites of the specific Testosterone antibody. Thus, the amount of Testosterone peroxidase conjugate immunologically bound to the well progressively decreases as the concentration of Testosterone in the specimen increases. Unbound Testosterone peroxidase conjugate is then removed and the wells are washed. Next, a solution of TMB Reagent is then added and incubated at room temperature for 15 min., resulting in the development of blue color. The color development is stopped with the addition of stop solution, and the absorbance is measured spectrophotometrically at 450nm.
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K7418-100
K7418-100? Microplate coated with Goat Anti-Rabbit IgG, 96 wells ? Standard: (0.5 ml) (ready to use) ? Rabbit Anti-Testosterone Reagent ? Assay Diluent ? Enzyme Conjugate (20X) ? Wash Buffer (20X) ? TMB Substrate (ready to use) ? Stop Solution (ready to use) Serum or plasma Testosterone (mouse/rat) ELISA Kit: Rapid & convenient colorimetric assay for quantitative measurement of mouse/rat Testosterone in serum or plasma. 100 assays. Testosterone is the most important androgen secreted into the blood. In males, testosterone is secreted primarily by the Leydig cells of the testes; in females ca. 50% of circulating testosterone is derived from peripheral conversion of androstenedione, ca. 25% from the ovary and ca. 25% from the adrenal glands. In women, high levels of testosterone are generally found in hirsutism and virilization, polycystic ovaries, ovarian tumors, adrenal tumors and adrenal hyperplasia. In men, high levels of testosterone are associated to the hypothalamic pituitary unit diseases, testicular tumors, congenital adrenal hyperplasia and prostate cancer. Low levels of testosterone can be found in patients with the following diseases: Hypopituitarism, Klinefelter’s syndrome, Testicular feminization, or chidectomy and Cryptorchidism, enzymatic defects and some autoimmune diseases. BioVision’s Testosterone EIA kit is based on the principle of competitive binding between Testosterone in the test specimen and Testosterone-HRP conjugate for a constant amount of rabbit anti-Testosterone. In the incubation, goat anti-rabbit IgG-coated wells are incubated with 25 μl of Testosterone standards, controls, samples, 100 μl Testosterone-HRP conjugate reagent and 50 μl rabbit anti-testosterone reagent at room temperature for 60 min. During the incubation, a fixed amount of HRP-labeled Testosterone competes with the endogenous Testosterone in the standard, sample, or quality control serum for a fixed number of binding sites of the specific Testosterone antibody. Thus, the amount of Testosterone peroxidase conjugate immunologically bound to the well progressively decreases as the concentration of Testosterone in the specimen increases. Unbound Testosterone peroxidase conjugate is then removed and the wells are washed. Next, a solution of TMB Reagent is then added and incubated at room temperature for 15 min., resulting in the development of blue color. The color development is stopped with the addition of stop solution, and the absorbance is measured spectrophotometrically at 450nm.
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