25348-4
Beta aminoisobutyrate [Moles/time] in 24 hour Urine
Active
Part Descriptions
LP15432-5 Beta aminoisobutyrate
3-Aminoisobutyric acid is a product formed by the catabolism of thymine.
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Source: Wikipedia, Wikipedia
LP15432-5 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
Fully-Specified Name
- Component
- Beta aminoisobutyrate
- Property
- SRat
- Time
- 24H
- System
- Urine
- Scale
- Qn
- Method
Additional Names
- Short Name
- B-AIB 24h Ur-sRate
- Display Name
- Beta aminoisobutyrate (24H U) [Moles/Time]
- Consumer Name Alpha Get Info
- Beta aminoisobutyrate, Urine
Basic Attributes
- Class
- CHEM
- Type
- Laboratory
- First Released
- Version 2.00
- Last Updated
- Version 2.73
- Order vs. Observation
- Observation
- Common Test Rank Get Info
- 13284
Member of these Panels
| LOINC | Long Common Name |
|---|---|
| 35509-9 | Amino acids panel [Moles/time] - 24 hour Urine |
Language Variants Get Info
| Tag | Language | Translation |
|---|---|---|
| de-AT | German (Austria) | Synonyms: Beta-Aminoisobutyrat /24hU |
| de-DE | German (Germany) | Beta-Aminoisobutyrat: |
| es-AR | Spanish (Argentina) | beta aminoisobutirato: |
| es-ES | Spanish (Spain) | Beta aminoisobutirato: Synonyms: Cuantitativo |
| es-MX | Spanish (Mexico) | Beta aminoisobutirato: |
| et-EE | Estonian (Estonia) | Beetaaminoisobutüraat: Synonyms: Aine määr Kvantitatiivne Uriin |
| fr-CA | French (Canada) | Bêta-aminoisobutyrate: |
| fr-FR | French (France) | Bêta aminoisobutyrate: |
| fr-BE | French (Belgium) | Béta-aminoisobutyrate: |
| it-IT | Italian (Italy) | Beta aminoisobutirrato: Synonyms: 24 Ore Chimica Tasso di sostanza |
| ko-KR | Korean (Korea, Republic Of) | 베타 아미노이소뷰티레이트: |
| nl-NL | Dutch (Netherlands) | bèta-amino-isobutyraat: Synonyms: 24U |
| pt-BR | Portuguese (Brazil) | Beta aminoisobutirato: Synonyms: ; |
| ru-RU | Russian (Russian Federation) | Бета аминоизобутират: Synonyms: Бета-аминоизобутират Количественный Молярная скорость; |
| tr-TR | Turkish (Turkey) | Beta aminoizobütirat: |
| zh-CN | Chinese (China) | Beta 氨基异丁酸: Synonyms: 1天; |
Example Units
| Unit | Source |
|---|---|
| umol/(24.h) | Example UCUM Units |
LOINC Terminology Service (API) using HL7® FHIR® Get Info
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- CodeSystem lookup
- https:
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