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      MicroVue Serum PYD EIA
      貨號:8019
      品牌:?QuidelOrtho
      規格:96 Test
      目錄價:詢價
      商品詳情 相關下載

      For Research Use Only in the United States.
      Not for use in diagnostic procedures.

      MicroVue Serum PYD provides a quantitative measure of the excretion of pyridinoline cross-link (Pyd) in serum. Pyridinoline cross-links are an indicator of type I collagen resorption, especially bone collagen.

      In humans, the total pool of urinary Pyd is approximately 45% free while the remaining fraction is bound to oligopeptides ranging from small linear peptides to very large cross-linked structures in excess of 10,000 Da. The proportion of free to total cross-links appears to be constant in healthy individuals and those with metabolic bone diseases or arthritis conditions, thus providing the rationale for measuring free Pyd.

      Performance Characteristics

      Method: Competitive
      Analyte: Pyridinoline
      Specimen: Serum
      Specimen Volume: 25 μL post-filtration
      LOD*: 0.4 nmol/L
      LLOQ*: 0.75 nmol/L
      HLOQ*: 12 nmol/L
      Precision CVs within-run: 6-15%
      Precision CVs between-run: 9-12%
      Incubation Time: 20-26 Hours
      Cross-reactivity: Free PYD 100% Free DPD 0% PYD/DPD peptides < 2.5% L-arginine 0.0004% (see Package Insert)

      *LOD = Limit of Detection, LLOQ = Lower Limit of Quantification, HLOQ = Higher Limit of Quantification

      About the Assay

      Format

      96 well microtiter plate, with reagents sufficient to test 40 samples in duplicate

      Antibody Specificity

      Free pyridinoline cross-links, some cross-reactivity to glutamine and arginine (0.5 nmol/L signal)

      Species Reactivity

      Baboon, Cat, Cow, Dog, Guinea Pig, Horse, Human, Rhesus Macaque, Mouse, Rat 
      No reactivity detected with Rabbit

      Assay Steps

      Spin serum in Spinfilters (included) for 30 minutes
      Add 50 μL Reagent 1 to plate
      Add 25 μL serum, diluted Standards, diluted Controls
      Add 75 μL cold Pyridinoline Antibody
      Incubate overnight at 2°C to 8°C
      Wash 3 times with 1x Wash Buffer
      Add 150 μL Enzyme Conjugate
      Incubate 1 hour at room temperature
      Wash 3 times with 1x Wash Buffer
      Add 150 μL working Substrate Solution
      Incubate 40 +/– 5 minutes at room temperature
      Add 100 μL Stop Solution
      Read at 405 nm
      Data Reduction: 4 Parameter

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