Version 2.78

Part Descriptions

LP14976-2   Cystine
Cystine is an oxidized dimeric form of cysteine. It is formed by linking two cysteine residues via a disulfide bond (cys-S-S-cys) between the -SH groups. Cystine was discovered in 1810 but was not recognized as a component of proteins until it was isolated from the horn of a cow in 1899.1 Cystine is found in high concentrations in the cells of the immune system, skeletal and connective tissues, skin, digestive enzymes, and in hair. Hair and skin are 10-14% cystine. 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, Cystine (Wikipedia)

LP14976-2   Cystine
Union of two cysteine molecules Source: Regenstrief Institute

LP14976-2   Cystine
A covalently linked dimeric nonessential amino acid formed by the oxidation of CYSTEINE. Two molecules of cysteine are joined together by a disulfide bridge to form cystine. Source: National Library of Medicine, MeSH 2006

LP14976-2   Cystine
Cystinuria is an inherited amino acid transport problem resulting in large amounts of cystine being excreted in the urine. Cystinuria often causes the formation of staghorn calculi or multiple large, bilateral stones. Urinary tract obstruction, infection, and renal failure are common, especially in men, due to the size and shape of the stones. Recurrence of cystine stones is common following surgical treatment. Therapy includes reducing excretion and increasing solubility of cystine.

Cystine is a hydrophilic amino acid with uncharged polar groups. Cystines' sulfhydryl group is functional in the activity of many enzymes. Increased in cystinuria which is caused by mutations in the SLC3A1 and SLC7A9 genes. (Information from ARUP Laboratories 9/14/06) 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
Cystine/Creatinine
Property
MRto
Time
24H
System
Urine
Scale
Qn
Method

Additional Names

Short Name
Cystine/Creat 24h Ur
Display Name
Cystine/Creatinine (24H U) [Mass ratio]
Consumer Name Alpha Get Info
Cystine/Creatinine, Urine

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 2.17
Last Updated
Version 2.44
Order vs. Observation
Both

Member of these Groups Get Info

LOINC Group Group Name
LG34574-0 Cystine/Creatinine|MRto|Urine

Language Variants Get Info

Tag Language Translation
es-MX Spanish (Mexico) Cistina / Creatinina:Relación de masa:24H:Orina:Cuantitativo:
es-ES Spanish (Spain) Cistina/Creatinina:Relacion de Masa:24 horas:Orina:Qn:
Synonyms: Cuantitativo
et-EE Estonian (Estonia) Tsüstiin/kreatiniin:MRto:24 tunni:U:Qn:
Synonyms: Kvantitatiivne Uriin
fr-CA French (Canada) Cystine/Créatinine:Ratio de masse:24 h:Urine:Quantitatif:
fr-FR French (France) Cystine/créatinine:Masse ratio:24H:Urine:Numérique:
fr-BE French (Belgium) Cystine/Créatinine:Ratio de masse:24 h:Urine:Quantitatif:
Synonyms: Rapport de masse
it-IT Italian (Italy) Cistina/Creatinina:MRto:24h:Urine:Qn:
Synonyms: 24 Ore Chimica Rapporto di Massa
nl-NL Dutch (Netherlands) cystine/creatinine:massaverhouding:24 uur:urine:kwantitatief:
Synonyms: 24U kreatinine
pt-BR Portuguese (Brazil) Cistina/Creatinina:MCrto:24H:Urina:Qn:
Synonyms: Cys-Cys; Dicysteine; Creat; CR; mRto; Mass concentration ratio; 1 day; 24 hours; 24HR; Ur; UR; Urn; UA; Quantitative; QNT; Quant; Quan; Chemistry; UCr
ru-RU Russian (Russian Federation) Цистин/Креатинин:МассОтн:24 часа:Моча:Колич:
Synonyms: Количественный Масс отношение
tr-TR Turkish (Turkey) Sistin/Kreatinin:KütlOr:24Sa:İdrar:Kant:
zh-CN Chinese (China) 胱氨酸/肌酐:质量比率:24小时:尿液:定量型:
Synonyms: 1天;1日;24.0小时;一天;一日;二十四个小时;二十四小时 CR;Creat;肌氨酸酐;肌酸内酰胺;肌酸酐 Cys-Cys;双巯丙氨酸 UCr 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 尿;小便;下泉 尿液肌酐 尿液肌酸酐 尿肌酸酐 来自于同一体系的两种分析物的质量之比;质量比 肌酸内酰胺

Example Units

Unit Source
mg/g{creat} Example UCUM Units

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

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=44312-7