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Congenital diarrhea 7 with exudative enteropathy(DIAR7)

MedGen UID:
862953
Concept ID:
C4014516
Disease or Syndrome
Synonym: Diarrhea 7
Modes of inheritance:
Autosomal recessive inheritance
MedGen UID:
141025
Concept ID:
C0441748
Intellectual Product
Source: Orphanet
A mode of inheritance that is observed for traits related to a gene encoded on one of the autosomes (i.e., the human chromosomes 1-22) in which a trait manifests in individuals with two pathogenic alleles, either homozygotes (two copies of the same mutant allele) or compound heterozygotes (whereby each copy of a gene has a distinct mutant allele).
 
Gene (location): DGAT1 (8q24.3)
 
Monarch Initiative: MONDO:0014375
OMIM®: 615863
Orphanet: ORPHA329242

Definition

Diarrhea-7 (DIAR7) is a protein-losing enteropathy characterized by early-onset nonbloody watery diarrhea and unresponsiveness to soy-based or elemental formulas. Patients experience failure to thrive, hypogammaglobulinemia with recurrent infections, and require albumin infusions and parenteral nutrition. Hypertriglyceridemia and digital clubbing have been observed (Stephen et al., 2016). The malabsorption can result in severe deficiency of vitamin D and other nutrients (Gupta et al., 2020). For a discussion of genetic heterogeneity of diarrhea, see DIAR1 (214700). [from OMIM]

Clinical features

From HPO
Abdominal colic
MedGen UID:
68563
Concept ID:
C0232488
Finding
A type of abdominal pain that comes and goes in waves, most often starting and ending suddenly and being of severe intensity.
Failure to thrive
MedGen UID:
746019
Concept ID:
C2315100
Disease or Syndrome
Failure to thrive (FTT) refers to a child whose physical growth is substantially below the norm.
Diarrhea
MedGen UID:
8360
Concept ID:
C0011991
Sign or Symptom
Abnormally increased frequency (usually defined as three or more) loose or watery bowel movements a day.
Protein-losing enteropathy
MedGen UID:
19522
Concept ID:
C0033680
Disease or Syndrome
Complement hyperactivation, angiopathic thrombosis, and protein-losing enteropathy (CHAPLE) is characterized by abdominal pain and diarrhea, primary intestinal lymphangiectasia, hypoproteinemic edema, and malabsorption. Some patients also exhibit bowel inflammation, recurrent infections associated with hypogammaglobulinemia, and/or angiopathic thromboembolic disease. Patient T lymphocytes show increased complement activation, causing surface deposition of complement and generating soluble C5a (Ozen et al., 2017).
Vomiting
MedGen UID:
12124
Concept ID:
C0042963
Sign or Symptom
Forceful ejection of the contents of the stomach through the mouth by means of a series of involuntary spasmic contractions.
Villous atrophy
MedGen UID:
154306
Concept ID:
C0554101
Finding
The enteric villi are atrophic or absent.
Hypercholesterolemia
MedGen UID:
5687
Concept ID:
C0020443
Disease or Syndrome
An increased concentration of cholesterol in the blood.
Hyperlipidemia
MedGen UID:
5692
Concept ID:
C0020473
Disease or Syndrome
An elevated lipid concentration in the blood.
Hypoalbuminemia
MedGen UID:
68694
Concept ID:
C0239981
Finding
Reduction in the concentration of albumin in the blood.

Term Hierarchy

CClinical test,  RResearch test,  OOMIM,  GGeneReviews,  VClinVar  
  • CROGVCongenital diarrhea 7 with exudative enteropathy

Recent clinical studies

Etiology

Wu J, Huang Z, Ji M, Jiang Z, Wang Y, Tang Z, Huang Y
Rev Esp Enferm Dig 2021 Nov;113(11):765-769. doi: 10.17235/reed.2021.7682/2020. PMID: 33733798

Diagnosis

Wu J, Huang Z, Ji M, Jiang Z, Wang Y, Tang Z, Huang Y
Rev Esp Enferm Dig 2021 Nov;113(11):765-769. doi: 10.17235/reed.2021.7682/2020. PMID: 33733798
van Rijn JM, Ardy RC, Kuloğlu Z, Härter B, van Haaften-Visser DY, van der Doef HPJ, van Hoesel M, Kansu A, van Vugt AHM, Thian M, Kokke FTM, Krolo A, Başaran MK, Kaya NG, Aksu AÜ, Dalgıç B, Ozcay F, Baris Z, Kain R, Stigter ECA, Lichtenbelt KD, Massink MPG, Duran KJ, Verheij JBGM, Lugtenberg D, Nikkels PGJ, Brouwer HGF, Verkade HJ, Scheenstra R, Spee B, Nieuwenhuis EES, Coffer PJ, Janecke AR, van Haaften G, Houwen RHJ, Müller T, Middendorp S, Boztug K
Gastroenterology 2018 Jul;155(1):130-143.e15. Epub 2018 Mar 29 doi: 10.1053/j.gastro.2018.03.040. PMID: 29604290Free PMC Article

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