Human Phenotype Ontology 
Grandparent Node:
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Abnormality of the intrinsic pathway (HP:0010989)help
Parent Node:
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Abnormal factor VIII activity (HP:0030976)help
..Starting node
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Reduced factor VIII activity (HP:0003125)help
Term ID: 3125
Name: Reduced factor VIII activity
Synonym: Factor VIII deficiency
Definition: Reduced activity of coagulation factor VIII. Factor VIII (fVIII) is a cofactor in the intrinsic clotting cascade that is activated to fVIIIa in the presence of minute quantities of thrombin. fVIIIa acts as a receptor, for factors IXa and X.
Comments:
Reference: HP:0003125
Genes and Diseases:
 
       Child Nodes:

 Sister Nodes: 
..expandIncreased factor VIII activity (HP:0030977) help
InputHPO IDHPO termDistanceGeneGene id entrezHGNC IDDiseaseIdDiseaseNameFrequencyOnsetHGMD variantsClinVar variants
 
HPO disease - gene - phenotype typical associations:
 
HPO disease - gene - phenotype less frequent non-typical associations:
HP:0003125HP:0003125Reduced factor VIII activity0F8 CL E G H21573546ORPHA:177926Bleeding disorder in hemophilia A carriers without FVIII deficiencyHP:0040281 - Very frequent303
HP:0003125HP:0003125Reduced factor VIII activity0F8 CL E G H21573546OMIM:306700Hemophilia A.303
HP:0003125HP:0003125Reduced factor VIII activity0F8 CL E G H21573546ORPHA:169805Moderate hemophilia AHP:0040281 - Very frequent303
HP:0003125HP:0003125Reduced factor VIII activity0F8 CL E G H21573546ORPHA:169802Severe hemophilia AHP:0040281 - Very frequent303
HP:0003125HP:0003125Reduced factor VIII activity0LMAN1 CL E G H39986631ORPHA:35909Combined deficiency of factor V and factor VIIIHP:0040281 - Very frequent56
HP:0003125HP:0003125Reduced factor VIII activity0LMAN1 CL E G H39986631OMIM:227300Factor V and factor VIII, combined deficiency of.56
HP:0003125HP:0003125Reduced factor VIII activity0MCFD2 CL E G H9041118451ORPHA:35909Combined deficiency of factor V and factor VIIIHP:0040281 - Very frequent77
HP:0003125HP:0003125Reduced factor VIII activity0MCFD2 CL E G H9041118451OMIM:613625Factor V and factor VIII, combined deficiency of77
HP:0003125HP:0003125Reduced factor VIII activity0SOS1 CL E G H665411187OMIM:610733Noonan syndrome 4315
HP:0003125HP:0003125Reduced factor VIII activity0VWF CL E G H745012726OMIM:193400Von willebrand disease, type 1.533
HP:0003125HP:0003125Reduced factor VIII activity0VWF CL E G H745012726OMIM:277480Von willebrand disease, type 3.533


Genes (5) :F8 LMAN1 MCFD2 SOS1 VWF

Diseases (10) :ORPHA:177926 OMIM:306700 ORPHA:169805 ORPHA:169802 ORPHA:35909 OMIM:227300 OMIM:613625 OMIM:610733 OMIM:193400 OMIM:277480
 

Human Phenotype Ontology(HPO) is developed by the Human Phenotype Ontology Consortium. The version used here is December 15 2022 release.