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Part Description

LP173717-2   Desmosterol
Desmosterol is an intermediate in the synthesis of cholesterol. Desmosterolosis is a rare autosomal recessive inborn errors of cholesterol synthesis that is caused by defective activity of desmosterol reductase which results in an accumulation of demosterol (DHCR24, EC 1.3.1.72), combines a severe osteosclerotic skeletal dysplasia and includes 2-3 toe syndactyly with Smith-Lemli-Opitz syndrome (SLOS; the biochemical block in SLOS results in decreased cholesterol levels and increased 7-dehydrocholesterol levels). Desmosterolosis is caused by mutation of the 24-dehydrocholesterol reductase gene (DHCR24). Many of the malformations in SLOS and desmosterolosis are consistent with impaired hedgehog function. The hedgehog proteins include Sonic hedgehog (SHH), which plays a major role in midline patterning and limb development. Desmosterolosis, caused by defective activity of desmosterol reductase, combines a severe osteosclerotic skeletal dysplasia. 7-dehydrocholesterol reductase (DHCR7, EC 1.3.1.21) reduces the C7-C8 double bond in the sterol B ring to form cholesterol or desmosterol depending upon the precursor. Desmosterol can be converted to cholesterol by DHCR24. Therefore, SLOS and Desmosterolosis patients invariably have elevated levels of cholesterol precursor's 7-dehydrocholesterol (and its spontaneous isomer 8-dehydrocholesterol) and absent desmosterol. PMID: 14631207, PMID: 16207203. 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, HMDB: 02719

LOINC Names Get Info

Fully-Specified Name
Desmosterol:MCnc:Pt:Ser/Plas:Qn:
Long Common Name
Desmosterol [Mass/volume] in Serum or Plasma
Short Name
Desmosterol SerPl-mCnc
Display Name
Desmosterol [Mass/Vol]
Consumer Name Alpha Get Info
Desmosterol, Blood

Part Model Get Info

  • Component
    Desmosterol
    LP173717-2
    • Analyte
      Desmosterol
      LP173717-2
      • Component Numerator
        Desmosterol
        LP173717-2
        • Component Numerator Core
          Desmosterol
          LP173717-2
        • Component Numerator Core Suffix
          NULL
           
      • Component Denominator
        NULL
         
        • Component Denominator Core
          NULL
           
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      NULL
       
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    MCnc
    LP6827-2
  • Time
    Pt
    LP6960-1
  • System
    Ser/Plas
    LP7576-4
    • System Core
      Ser/Plas
      LP7576-4
    • Super System
      NULL
       
  • Scale
    Qn
    LP7753-9
  • Method
    NULL
     

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 2.50
Last Updated
Version 2.73 (MIN)
Order vs. Observation
Both
Common Test Rank Get Info
17551

Member of these Panels

LOINCLong Common Name
75858-1Sterols panel [Mass/volume] - Serum or Plasma

Member of these Groups Get Info

LOINC GroupGroup Name
LG43385-0Desmosterol|Pt|Ser/Plas|384.648 g/mole

Language Variants Get Info

TagLanguageTranslation
cs-CZCzech (Czechia)Desmosterol:Hmotnostní koncentrace:Časový bod:Sérum/plazma:Kvantitativní:
el-GRGreek (Greece)Δεσμοστερόλη:MCnc:Pt:Ορός/Πλάσμα:Qn:
Synonyms: CHEM MCnc Pt Qn Δεσμοστερόλη Ορός Ορός/Πλάσμα Πλάσμα
es-ESSpanish (Spain)Desmosterol:Concentración de masa:Punto temporal:Suero o Plasma:Qn:
Synonyms: Cuantitativo
es-MXSpanish (Mexico)Desmosterol:Concentración de masa:Punto temporal:Suero o Plasma:Cuantitativo:
fr-CAFrench (Canada)Desmostérol:Concentration de masse:Temps ponctuel:Sérum/Plasma:Quantitatif:
fr-FRFrench (France)Desmostérol:Masse/Volume:Ponctuel:Sérum/Plasma:Numérique:
it-ITItalian (Italy)Desmosterolo:MCnc:Pt:Siero/Plasma:Qn:
Synonyms: Chimica Concentrazione di Massa Plasma Punto nel tempo (episodio) Siero Siero o Plasma
nl-NLDutch (Netherlands)desmosterol:massa/volume:moment:serum of plasma:kwantitatief:
ru-RURussian (Russian Federation)Десмостерол:МассКонц:ТчкВрм:Сыв/Плаз:Колич:
Synonyms: Количественный Массовая концентрация Плазма Сыворотка Сыворотка или Плазма Точка во времени;Момент
tr-TRTurkish (Turkey)Dezmosterol:KütlKons:Zmlı:Ser/Plaz:Kant:
zh-CNChinese (China)链甾醇:质量浓度:时间点:血清/血浆:定量型:
Synonyms: 24-脱氢胆固醇;24-去氢胆固醇 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 时刻;随机;随意;瞬间 水平;浓度;质量浓度(单位体积) 血清或血浆

Example Units

UnitSource
mg/LExample UCUM Units

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

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=75739-3