82453-2

Zo Ab [Presence] in Serum by Line blot

Active

Term Description

This term was created for, but is not limited in use to, the submitter's test strip, a membrane strip pre-coated with a specific set of antigens in parallel lines. If antibodies to any of those antigens are present in the patient's serum, they will bind to the specific antigen. The bound patient antibodies are then detected using labelled anti-human antibodies. Various manufacturers classify this method as an immunoblot technique. LOINC uses the immunoblot (IB) method to mean that some electrophoretic/chromatographic separation occurs such that position (size) of the band is part of the assessment (as in Western blot). Because this assay does not involve a separation step but rather uses strips with pre-fixed antigens, the LOINC Method is Line blot.

Part Description

LP220359-6   Zo
Aminoacyl-tRNA synthetases (ARS) are enzymes that link amino acids to tRNA molecules and therefore play a key role in protein synthesis. Each ARS is specific for a single amino acid. [NCBI Books: NBK22356] Autoantibodies to ARS are a hallmark of connective tissue diseases including anti-synthetase syndrome (ASS) and idiopathic inflammatory myopathies such as polymyositis (PM) and dermatomyositis (DM). ASS, PM and DM have overlapping features, including myositis, arthralgia, skin manifestations and interstitial lung disease. Antibodies to several specific ARS enzymes have been identified, including anti-histidyl (anti-Jo-1), anti-threonyl (anti-PL-7), anti-alanyl (anti-PL-12), anti-glycyl (anti-Ej), anti-isoleucyl (anti-Oj), anti-asparaginyl (anti-Ks), anti-phenylalanyl (anti-Zo), and anti-tyrosyl (anti-Ha). Different antibodies or patterns of antibodies have been associated with specific clinical features. Anti-Jo-1, anti-Ej, and anti-PL-7 antibodies are associated with myositis, including classic DM, clinically amyopathic DM (CADM) and PM. Anti-PL-12 alone is associated with CADM or interstitial lung disease (ILD). Anti-Ej and anti-PL-12 together are associated with CADM. Anti-Ks and anti-Oj are associated with ILD alone. PMID: 23573256 Anti-Ha and anti-Zo antibodies are the most recent autoantibodies to be identified in patients with symptoms of ASS. PMID: 17392287 Identifying the particular anti-ARS antibodies associated with an individual patient's disease may help guide treatment and predict clinical outcomes. Source: Regenstrief LOINC, PMID: 23573256

LOINC Names Get Info

Fully-Specified Name

Zo ab:PrThr:Pt:Ser:Ord:Line blot

Long Common Name

Zo Ab [Presence] in Serum by Line blot

Short Name

Zo Ab Ser Ql Line blot

Display Name

Zo Ab Line blot Ql (S)

Consumer Name Alpha Get Info

Zo antibody, Blood

Part Model Get Info

• Component

  Zo Ab
  LP220360-4

  • Analyte

    Zo Ab
    LP220360-4

    • Component Numerator

      Zo Ab
      LP220360-4

      • Component Numerator Core

        Zo
        LP220359-6

      • Component Numerator Core Suffix

        Ab
        LP20667-9

    • Component Denominator

      NULL
       

      • Component Denominator Core

        NULL
         

      • Component Denominator Core Suffix

        NULL
         

  • Challenge

    NULL
     

  • Adjustment

    NULL
     

  • Count

    NULL
     

• Property

  PrThr
  LP217195-9

• Time

  Pt
  LP6960-1

  • Time Core

    Pt
    LP6960-1

  • Time Modifier

    NULL
     

• System

  Ser
  LP7567-3

  • System Core

    Ser
    LP7567-3

  • Super System

    NULL
     

• Scale

  Ord
  LP7751-3

• Method

  Line blot
  LP266806-1

Example Answer List: LL360-9

Basic Attributes

Class

SERO

Type

Laboratory

First Released

Version 2.58

Last Updated

Version 2.66 (MIN)

Change Reason

This term was created for an assay that uses a membrane strip pre-coated with a specific set of antigens in parallel lines. Because the antigens are seperated by electrophoresis/chromatographic separation during manufacturing, not during the test procedure itself, this test was assigned a LOINC Method of Immunoassay (IA) and not Immunoblot (IB). However, upon further review of IA, IB, and Immunoblot strip methodologies and regulatory distinctions between these, we changed the Method from IA to Line blot so that users can distinguish between these three Methods. The meaning of the term has not changed since it was created for an IB strip assay as described in the term description.

Order vs. Observation

Both

Language Variants Get Info

Related Names

• ABS
• Aby
• Antby
• Anti
• Antibodies
• Antibody
• Autoantibodies
• Autoantibody
• Ordinal
• Phenylalanyl tRNA Synthetase
• Point in time
• PR
• QL
• Qual
• Qualitative
• Random
• Screen
• Serology
• Serum
• SR

LOINC Terminology Service (API) using HL7^® FHIR^® Get Info

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CodeSystem lookup

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=82453-2

Third Party Copyright

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LOINC Copyright

Copyright © Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.