Decreased methylcobalamin

Symptom Information:

Symptom ID: HPO:0003223
Methylcobalamin deficiency [HPO:0003223]
Vitamin B12 deficiency [Orphanet:49780]
Cobalamin deficiency (disorder) [Orphanet:49780]
Vitamin B 12 Deficiency [Orphanet:49780]
Vitamin B12 deficiency [MedDRA:10047609]
Dietary B12 deficiency [MedDRA:10047609]
Vitamin B12 absorption decreased [MedDRA:10047609]
Cobalamin deficiency [MedDRA:10047609]
Decreased methylcobalamin (MeCbl) [OMIM:Decreased methylcobalamin (MeCbl)]
Vitamin B12 deficiency (in some patients) [OMIM:Vitamin B12 deficiency (in some patients)]
Vitamin B12 deficiency (uncommon) [OMIM:Vitamin B12 deficiency (uncommon)]
Cross references:
HPO:0100502 "Vitamin B12 deficiency" [Orphanet:49780]
Orphanet:49780 "Vitamin B12 deficiency" [Orphanet:49780]
OMIM: "Decreased methylcobalamin (MeCbl)" [OMIM:Decreased methylcobalamin (MeCbl)]
OMIM: "Vitamin B12 deficiency (in some patients)" [OMIM:Vitamin B12 deficiency (in some patients)]
OMIM: "Vitamin B12 deficiency (uncommon)" [OMIM:Vitamin B12 deficiency (uncommon)]
UMLS:C0042847 "Vitamin B 12 Deficiency" [Orphanet:49780]
Is a (Direct Parents):
HPO         Abnormality of vitamin B12 metabolism
Orphanet Abnormality of vitamin metabolism
MedDRA Water soluble vitamin deficiencies
Is a (Whole tree): HPO:
    Phenotypic abnormality(HPO:0000118)
       Abnormality of metabolism/homeostasis(HPO:0001939)
          Abnormality of vitamin metabolism(HPO:0100508)
             Abnormality of vitamin B metabolism(HPO:0004340)
                Abnormality of vitamin B12 metabolism(HPO:0004341)
                   Decreased methylcobalamin(HPO:0003223)
Metabolism and nutrition disorders(MedDRA:10027433)
    Vitamin related disorders(MedDRA:10047635)
       Water soluble vitamin deficiencies(MedDRA:10047842)
          Decreased methylcobalamin(HPO:0003223)
Database Frequency: 11 / 7739

All diseases associated with this symptom:

Chronic diarrhea due to guanylate cyclase 2C overactivity (Orphanet:314373)
Methylcobalamin deficiency type cblDv1 (Orphanet:308380)
Methylcobalamin deficiency type cblE (Orphanet:2169)
Methylcobalamin deficiency type cblG (Orphanet:2170)
Methylmalonic acidemia with homocystinuria (Orphanet:26)
Methylmalonic acidemia with homocystinuria, type cblC (Orphanet:79282)
Methylmalonic acidemia with homocystinuria, type cblD (Orphanet:79283)
Methylmalonic acidemia with homocystinuria, type cblF (Orphanet:79284)
Methylmalonic acidemia with homocystinuria, type cblJ (Orphanet:369955)
Vitamin B12-responsive methylmalonic acidemia, type cblDv2 (Orphanet:308442)