2515-5
Kynurenate [Mass/volume] in Urine
Discouraged
Status Information
- Status
- DISCOURAGED
- Comment
- This analyte is usually reported as substance, not mass
| Map-To | Long Common Name | Mapping Guidance |
|---|---|---|
| 53101-2 | Kynurenate [Moles/volume] in Urine |
Part Description
LP15684-1 Kynurenate
Kynurenic acid (KYNA) is a product of the normal metabolism of amino acid L-tryptophan. It has been shown that kynurenic acid possesses neuroactive activity. It acts as an antiexcitotoxic and anticonvulsant, most likely through acting as an antagonist at excitatory amino acid receptors. Because of this activity, it may influence important neurophysiologic and neuropathologic processes. As a result, kynurenic acid has been considered for use in therapy in certain neurobiological disorders. Conversely, increased levels of kynurenic acid have also been linked to certain pathological conditions.
High levels of kynurenic acid have been identified in patients suffering from tick-borne encephalitis, schizophrenia and HIV-related illnesses. In all these situations increased levels were associated with confusion and psychotic symptoms. Kynurenic acid acts in the brain as a glycine-site NMDAr antagonist, key in glutamatergic neurotransmission system, which is thought to be involved in the pathophysiology and pathogenesis of schizophrenia.
A kynurenic acid hypothesis of schizophrenia has been proposed in 2007, based on its action on midbrain dopamine activity and NMDArs, thus linking dopamine hypothesis of schizophrenia with the glutamate hypothesis of the disease.
High levels of kynurenic acid have been identified in human urine in certain metabolic disorders, such as marked pyridoxine deficiency and deficiency/absence of kynureninase.
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Source: Wikipedia,
Kynurenic acid
LOINC Names Get Info
- Fully-Specified Name
- Kynurenate:
MCnc: Pt: Urine: Qn: - Long Common Name
- Kynurenate [Mass/volume] in Urine
- Short Name
- KYN Ur-mCnc
- Display Name
- Kynurenate (U) [Mass/Vol]
- Consumer Name Alpha Get Info
- Kynurenate, Urine
Part Model Get Info
Basic Attributes
- Class
- CHEM
- Type
- Laboratory
- First Released
- Version 1.0
- Last Updated
- Version 2.75 (MIN)
- Order vs. Observation
- Both
Member of these Groups Get Info
| LOINC Group | Group Name |
|---|---|
| LG48918-3 | Kynurenate| |
Language Variants Get Info
| Tag | Language | Translation |
|---|---|---|
| cs-CZ | Czech (Czechia) | Kynurenát: |
| el-GR | Greek (Greece) | Κυνουρενάτη: Synonyms: CHEM MCnc Pt Qn Κυνουρενάτη Ούρα |
| es-AR | Spanish (Argentina) | quinurenato: |
| es-ES | Spanish (Spain) | Quinurenato: Synonyms: Cuantitativo |
| es-MX | Spanish (Mexico) | Quinurenato: |
| fr-CA | French (Canada) | Kynurénate: |
| fr-BE | French (Belgium) | Kynurénate: |
| fr-FR | French (France) | Cynurénate: |
| it-IT | Italian (Italy) | Chinurenato: Synonyms: Chimica Concentrazione di Massa Punto nel tempo (episodio) |
| ko-KR | Korean (Korea, Republic Of) | Kynurenate: |
| nl-NL | Dutch (Netherlands) | kynurenaat: |
| pt-BR | Portuguese (Brazil) | Kinurenate: Synonyms: ; |
| ru-RU | Russian (Russian Federation) | Кинуренат: Synonyms: Количественный Массовая концентрация Точка во времени; |
| tr-TR | Turkish (Turkey) | Kinirenat: |
| zh-CN | Chinese (China) | 犬尿氨酸: Synonyms: KYN; |
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