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Genetic spectrum of neonatal diabetes

   | 23 mar 2021
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Figure1

Normal insulin secretion process after glucose enters the β-cell is presented. KCNJ11 and ABCC8 gene mutations influence the ATP channel causing inability of insulin expulsion.
Normal insulin secretion process after glucose enters the β-cell is presented. KCNJ11 and ABCC8 gene mutations influence the ATP channel causing inability of insulin expulsion.

Mutations in syndromic neonatal diabetes mellitus.

MechanismGene MutationChromosome LocusInheritanceAdditional Features
Fanconi-Bickel syndromeSCL2A2 (GLUT2)3q26.1-26.3ARhypergalatosemia; liver dysfunction
Roger syndromeSCL19A21q23.3ARthiamine-sensorinueral responsive deafness megaloblastic anemia;
Abnormal development pancreaticRFX66q22.1ARintestinal atresia + bladder agenesis
GATA618q11-q11.2ADpancreatic biliary abnormalities agenesis; heart defects;
GATA48p23.1ADpancreatic agenesis + heart defects
GLIS39p24.3-p23ARcongenital hepatic fibrosis; hypothyridism; renal cysts glaucoma;
NEURG310q21.3ARmalabsorbtive diarrhea
NEUROD12q32ARcerebellar deafness hypoplasia; visual impairment;
PAX611.p13ARmicrophtalmia; brain malformations
MNX17q36.3ARdevelopmental imperforate anus delay; sacral agenesis;
MNX2-220p11.22ARdevelopmental deafness delay; hypotonia; short stature;
PTF110.p12.2ARpancreatic hypoplasia; cerebellar hypoplasia
Destruction of β-cells
Wolcott-Rallison syndromeEIF2AK32p11.2de novo or ADskeletal dysplasia; liver dysfunction
IER3IP118q21.2ARmicrocephaly; lisencephaly; enceph-alopathy
IPEX syndromeFOXP3Xp11.23-p13.3X-recessive linked;autoimmune autoimmune enteropathy; hypothyroidism; eczema
Wolfram (DIDMOAD)syndrome aWFS14p16.1ARoptic atrophy; DM; DI
WFS14p16.1ADcongenital cataracts; deafness

Gene mutations in transient neonatal diabetes mellitus.

Mechanism of β-Cell DysfunctionGene MutationChromosome LocusInheritanceAdditional FeaturesTherapy
Reduced β-cell developmentZAC (IPLAG1)/ HYMA16q24imprinting; ADmacroglossia; umbilical herniainsulin
ZEP576p22.1ARinsulin
HNF1B17q21.3ADpancreatic cysts hypoplasia; renal
Failure membrane to depolarizeKCNJ11a (Kir6.2)11p15.1AD; de novolow developmental birth weight; delay; DENDsulfonylurea
Failure channel to close KATPABCC8a (SUR1)11p15.1AD; AR; de novolow birth weightsulfonylurea
Abnormal β-cell functionINSa (proinsulin)11p15.5ARlow birth weightinsulin

Gene mutations in permanent neonatal diabetes mellitus.

Mechanism of β-Cell DysfunctionGene MutationChromosome LocusInheritanceAdditional FeaturesTherapy
Failure membrane to depolarizeKCNJ11 (Kir6.2)11p15.1AD; de novolow developmental birth weight; delay; DENDsulfonylurea
Failure KATP channel to closeABCC8 (SUR1)11p15.1de novo; AD; ARlow birth weightsulfonylurea
Abnormal function β-cellINS (proinsulin)11p15.5de novo; AD; ARlow birthweightinsulin
Abnormal sensing glucoseGCK7p15-13AR
Abnormal development pancreaticPDX113.q12.1ARpancreatic afenesis steatorrhea
eISSN:
1311-0160
Lingua:
Inglese
Frequenza di pubblicazione:
2 volte all'anno
Argomenti della rivista:
Medicine, Basic Medical Science, other