28608-8
Tryptophan/Creatinine [Ratio] in Urine
Active
Part Descriptions
LP15931-6 Tryptophan
Tryptophan is an amino acid and essential in human nutrition. It is one of the 20 amino acids in the genetic code (codon UGG). Only the L-stereoisomer appears in mammalian protein, however the D-stereoisomer is occasionally found in natural materials (for example, the marine venom peptide contryphan).
Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See http://creativecommons.org/licenses/by-sa/3.0/ for details.
Source: Wikipedia, Tryptophan (Wikipedia)
LP15931-6 Tryptophan
An essential amino acid that is necessary for normal growth in infants and for NITROGEN balance in adults. It is a precursor of INDOLE ALKALOIDS in plants. It is a precursor of SEROTONIN (hence its use as an antidepressant and sleep aid). It can be a precursor to NIACIN, albeit inefficiently, in mammals.
Source: National Library of Medicine, MeSH 2006
LP15931-6 Tryptophan
Tryptophoan (or L-tryptophan) is an amino acid, a protein building block that can be found in many plant and animal proteins. L-tryptophan is called an "essential" amino acid because the body can't make it. It must be acquired from food. L-tryptophan is used for insomnia, sleep apnea, depression, anxiety, facial pain, a severe form of premenstrual syndrome called premenstrual dysphoric disorder (PMDD), smoking cessation, grinding teeth during sleep (bruxism), attention deficit-hyperactivity disorder (ADHD), Tourette's syndrome, and to improve athletic performance. L-tryptophan is naturally found in animal and plant proteins. L-tryptophan is considered an essential amino acid because our bodies can't make it. It is important for the development and functioning of many organs in the body. After absorbing L-tryptophan from food, our bodies convert it to 5-HTP (5-hyrdoxytryptophan), and then to serotonin. Serotonin is a hormone that transmits signals between nerve cells. It also causes blood vessels to narrow. Changes in the level of serotonin in the brain can alter mood.
Source: Medline Plus, MedlinePlus: L-tryptophan
LP32035-5 Creatinine
Creatinine or creatine anhydride, is a breakdown product of creatine phosphate in muscle. The loss of water molecule from creatine results in the formation of creatinine. It is transferred to the kidneys by blood plasma, whereupon it is eliminated by glomular filtration and partial tubular excretion. Creatinine is usually produced at a fairly constant rate and measuring its serum level is a simple test. A rise in blood creatinine levels is observed only with marked damage to functioning nephrons; therefore this test is not suitable for detecting early kidney disease. Creatine and creatinine are metabolized in the kidneys, muscle, liver and pancreas.
Copyright Copyright ©2005-2009 Genome Alberta (Reference to original publication: Wishart DS, Knox C, Guo AC, et al. HMDB: a knowledgebase for the human metabolome. Nucleic Acids Res. 2009 37(Database issue):D603-610.)
Source: Human Metabolome Database, Creatinine
Fully-Specified Name
- Component
- Tryptophan/Creatinine
- Property
- Ratio
- Time
- Pt
- System
- Urine
- Scale
- Qn
- Method
Additional Names
- Short Name
- Tryptophan/Creat Ur-Rto
- Display Name
- Tryptophan/Creatinine (U) [Ratio]
- Consumer Name Alpha Get Info
- Tryptophan/Creatinine, 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
- 6390
Member of these Panels
| LOINC | Long Common Name |
|---|---|
| 35087-6 | Amino acids panel - Urine |
Member of these Groups Get Info
| LOINC Group | Group Name |
|---|---|
| LG35674-7 | Tryptophan/Creatinine| |
Language Variants Get Info
| Tag | Language | Translation |
|---|---|---|
| de-DE | German (Germany) | Tryptophan/Creatinin: |
| de-AT | German (Austria) | Synonyms: Tryptophan/Kreatinin-Ratio /U |
| es-MX | Spanish (Mexico) | Triptófano / Creatinina: |
| es-ES | Spanish (Spain) | Triptófano/Creatinina: Synonyms: Cuantitativo |
| es-AR | Spanish (Argentina) | triptófano/creatinina: |
| et-EE | Estonian (Estonia) | Trüptopfaan/kreatiniin: Synonyms: Juhuslik Kvantitatiivne Uriin |
| fr-CA | French (Canada) | Tryptophane/Créatinine: |
| fr-FR | French (France) | Tryptophane/créatinine: |
| fr-BE | French (Belgium) | Tryptophane/Créatinine: |
| it-IT | Italian (Italy) | Triptofano/Creatinina: Synonyms: Chimica Punto nel tempo (episodio) |
| ko-KR | Korean (Korea, Republic Of) | 트립토판/크레아티닌: |
| nl-NL | Dutch (Netherlands) | tryptofaan/creatinine: Synonyms: kreatinine |
| pt-BR | Portuguese (Brazil) | Triptofano/Creatinina: Synonyms: c244; |
| ru-RU | Russian (Russian Federation) | Триптофан/Креатинин: Synonyms: Количественный Коэффициент; |
| tr-TR | Turkish (Turkey) | Triptofan/Kreatinin: |
| uk-UA | Ukrainian (Ukraine) | Триптофан/креатинін: Synonyms: c244; |
| zh-CN | Chinese (China) | 色氨酸/肌酐: Synonyms: B 吲哚基丙氨酸; |
Example Units
| Unit | Source |
|---|---|
| umol/g{creat} | Example UCUM Units |
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