@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix nalt: <https://lod.nal.usda.gov/nalt/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix ns0: <https://lod.nal.usda.gov/naltv#> .

<https://lod.nal.usda.gov/naltv#marc001> rdfs:label "Field 001 in MARC Authority Format"@en .
nalt:47278_def
  a <https://lod.nal.usda.gov/naltv#Definition> ;
  rdf:value "A diverse group of metabolic diseases characterized by errors in the biosynthetic pathway of heme in the liver, the bone marrow, or both. They are classified by the deficiency of specific enzymes, the tissue site of enzyme defect, or the clinical features that include neurological (acute) or cutaneous (skin lesions). Porphyrias can be hereditary or acquired as a result of toxicity to the hepatic or erythropoietic marrow tissues."@en, "Grupo de trastornos caracterizados por la producción excesiva de porfirinas o sus precursores, que se produce por anormalidades en la vía porfirina-heme."@es ;
  dc:source "Medical Subject Headings 2012" .

<https://lod.nal.usda.gov/nalt>
  a skos:ConceptScheme ;
  rdfs:label "NALT Full"@en .

<https://lod.nal.usda.gov/naltv#Topic>
  a owl:Class ;
  rdfs:label "Topic"@en .

nalt:47278
  a <https://lod.nal.usda.gov/naltv#Topic>, skos:Concept ;
  dc:created "2006-01-19"^^xsd:date ;
  dc:modified "2012-11-30"^^xsd:date ;
  skos:broader nalt:2755, nalt:348 ;
  skos:definition nalt:47278_def ;
  skos:exactMatch <http://id.loc.gov/authorities/subjects/sh85105021> ;
  skos:inScheme <https://lod.nal.usda.gov/nalt> ;
  skos:prefLabel "porfiria"@es, "porphyria"@en ;
  skos:related nalt:25454 ;
  ns0:marc001 "29754" .

nalt:25454
  a ns0:Chemical, skos:Concept ;
  skos:prefLabel "porfirinas"@es, "porphyrins"@en ;
  skos:related nalt:47278 .

nalt:2755
  a ns0:Topic, skos:Concept ;
  skos:narrower nalt:47278 ;
  skos:prefLabel "inherited metabolic diseases"@en, "enfermedades metabólicas heredadas"@es .

nalt:348
  a ns0:Topic, skos:Concept ;
  skos:narrower nalt:47278 ;
  skos:prefLabel "enfermedades de la piel"@es, "skin diseases"@en .