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Part Description

LP201653-5   S-beta aminoisobutyrate
Beta aminoisobutyric acid (BAIB) is a nonprotein amino acid that is an end product of pyrimidine metabolism. The R and S enantiomers (previously named D-(minus)-BAIB and L-plus-BAIB) are produced from thymine and L-valine, respectively. Under normal circumstances, urine contains predominantly R-BAIB (from thymine) because it is eliminated by filtration and tubular secretion, while plasma contains about 80% S-BAIB (from valine), which is reabsorbed in the kidneys. In patients with dihydropyrimidine dehydrogenase deficiency, thymine catabolism is decreased, which results in moderately decreased CSF concentration and markedly decreased plasma concentration of BAIB. On the other hand, urine BAIB is elevated despite decreased breakdown of thymine, which indicates that there must be cross-over in the thymine and valine degradation pathways. PMID: 14705962 Deficiency of D-beta-aminoisobutyrate:pyruvate aminotransferase (EC 2.6.1.40) , an enzyme that is involved in the catabolism R-BAIB, also results in elevated urine BAIB and is associated with hyperuricemia. [OMIM: 210100] Source: Regenstrief LOINC, PMID: 14705962

LOINC Names Get Info

Fully-Specified Name
S-beta aminoisobutyrate:SCnc:Pt:Ser/Plas:Qn:
Long Common Name
S-beta aminoisobutyrate [Moles/volume] in Serum or Plasma
Short Name
S-B-AIB SerPl-sCnc
Display Name
S-beta aminoisobutyrate [Moles/Vol]
Consumer Name Alpha Get Info
S-beta aminoisobutyrate, Blood

Part Model Get Info

  • Component
    S-beta aminoisobutyrate
    LP201653-5
    • Analyte
      S-beta aminoisobutyrate
      LP201653-5
      • Component Numerator
        S-beta aminoisobutyrate
        LP201653-5
        • Component Numerator Core
          S-beta aminoisobutyrate
          LP201653-5
        • Component Numerator Core Suffix
          NULL
           
      • Component Denominator
        NULL
         
        • Component Denominator Core
          NULL
           
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      NULL
       
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    SCnc
    LP6860-3
  • Time
    Pt
    LP6960-1
  • System
    Ser/Plas
    LP7576-4
    • System Core
      Ser/Plas
      LP7576-4
    • Super System
      NULL
       
  • Scale
    Qn
    LP7753-9
  • Method
    NULL
     

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 2.54
Last Updated
Version 2.56 (MIN)
Change Reason
Changed Class from CHEM.ESOTERIC to CHEM and added Esoteric tag for more flexibility
Order vs. Observation
Observation

Member of these Panels

LOINCLong Common Name
79583-1R- and S-beta aminoisobutyrate and D- and L-serine panel - Serum or Plasma

Language Variants Get Info

TagLanguageTranslation
cs-CZCzech (Czechia)S-beta-aminoizobutyrát:Látková koncentrace:Časový bod:Sérum/plazma:Kvantitativní:
el-GRGreek (Greece)S-β-αμινοϊσοβουτυρικό:SCnc:Pt:Ορός/Πλάσμα:Qn:
Synonyms: CHEM Pt Qn S SCnc S-β-αμινοϊσοβουτυρικό β-αμινοϊσοβουτυρικό Ορός Ορός/Πλάσμα Πλάσμα
es-ESSpanish (Spain)S-beta aminoisobutirato:Concentración de sustancia:Punto temporal:Suero o Plasma:Qn:
Synonyms: Cuantitativo
es-MXSpanish (Mexico)S-beta aminoisobutirato:Concentración de sustancias:Punto temporal:Suero o Plasma:Cuantitativo:
fr-FRFrench (France)S-bêta aminoisobutyrate:Moles/Volume:Ponctuel:Sérum/Plasma:Numérique:
it-ITItalian (Italy)S-Beta aminoisobutirrato:SCnc:Pt:Siero/Plasma:Qn:
Synonyms: Chimica Concentrazione di Sostanza Plasma Punto nel tempo (episodio) Siero Siero o Plasma
nl-NLDutch (Netherlands)S-bèta-aminoisobutyraat:mol/volume:moment:serum of plasma:kwantitatief:
pl-PLPolish (Poland)S-beta aminoizomaślan:stężenie molowe:punkt w czasie:surowica lub osocze:ilościowy:
tr-TRTurkish (Turkey)S-beta aminoizobütirat:SubKons:Zmlı:Ser/Plaz:Kant:
zh-CNChinese (China)S-beta 氨基异丁酸:物质的量浓度:时间点:血清/血浆:定量型:
Synonyms: 3-氨基异丁酸;B-AIB;Beta-氨基异丁酸;β氨基异丁酸;β-氨基异丁酸 B S 型 S-β氨基异丁酸;S-β-氨基异丁酸;S-B-AIB β 克分子浓度;克分子浓度(单位体积);摩尔浓度;摩尔浓度(单位体积);物质的量浓度(单位体积) 化学;化学检验项目;化学检验项目类;化学类;化学试验;非刺激耐受型化学检验项目;非刺激耐受型化学检验项目类;非刺激耐受型化学试验;非刺激耐受型化学试验类 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 时刻;随机;随意;瞬间 血清或血浆 贝塔

Example Units

UnitSource
umol/LExample UCUM Units

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

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=79604-5