34299-8
Estrone (E1)/Creatinine [Molar ratio] in Urine
Active
Part Descriptions
LP15560-3 Estrone
Estrone has low biological activity compared with estridiol. In humans the major source of E1 is the extraglandular conversion of androstenedione secreted by the adrenal gland. In women the sequence of events during the menstrual cycle depends on the stimulation of the ovary by gonadotropins and feedback by the estrogens on the hypothalamus and pituitary. Under normal circumstances the amount of E1 generated is small and does not play a significant role in feedback, but under abnormal conditions [e.g. obesity] the amount may become sufficient to interfere with normal feedback mechanisms and produce disturbances of the ovarian cycle. In men, E1 levels may be helpful in the diagnosis of gynecomastia or the detection of estrogen-producing tumors.
Source: Regenstrief Institute
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
- Estrone/Creatinine
- Property
- SRto
- Time
- Pt
- System
- Urine
- Scale
- Qn
- Method
Additional Names
- Short Name
- Estrone/Creat Ur-sRto
- Display Name
- E1/Creatinine (U) [Molar ratio]
- Consumer Name Alpha Get Info
- Estrone/Creatinine, Urine
Basic Attributes
- Class
- CHEM
- Type
- Laboratory
- First Released
- Version 2.10
- Last Updated
- Version 2.42
- Order vs. Observation
- Both
Language Variants Get Info
| Tag | Language | Translation |
|---|---|---|
| es-AR | Spanish (Argentina) | estrona/creatinina: |
| es-MX | Spanish (Mexico) | Estrona / Creatinina: |
| es-ES | Spanish (Spain) | Estrona/Creatinina: Synonyms: Cuantitativo |
| fr-CA | French (Canada) | Oestrone/Créatinine: |
| fr-FR | French (France) | Estrone/créatinine: |
| fr-BE | French (Belgium) | Oestrone/Créatinine: Synonyms: E1 |
| it-IT | Italian (Italy) | Estrone/Creatinina: Synonyms: Chimica Punto nel tempo (episodio) Rapporto di sostanza |
| ko-KR | Korean (Korea, Republic Of) | 에스트론/크레아티닌: |
| nl-NL | Dutch (Netherlands) | oestron/creatinine: Synonyms: kreatinine |
| pt-BR | Portuguese (Brazil) | Estrona/Creatinina: Synonyms: E1; |
| ru-RU | Russian (Russian Federation) | Эстрон/Креатинин: Synonyms: Количественный Мольная доля; |
| tr-TR | Turkish (Turkey) | Östron/Kreatinin: Synonyms: SubsOranı |
| zh-CN | Chinese (China) | 雌酮/肌酐: Synonyms: CR; |
Example Units
| Unit | Source |
|---|---|
| pmol/mol{creat} | Example UCUM Units |
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Copyright © 2024 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright