MODY 4 - Wikipedia · Edge Rewrite

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MODY 4
Specialty	Endocrinology

MODY 4 or PDX1-MODY is a form of maturity onset diabetes of the young.

MODY 4 arises from mutations of the PDX1 homeobox gene on chromosome 13. Pdx-1 is a transcription factor vital to the development of the embryonic pancreas. Even in adults it continues to play a role in the regulation and expression of genes for insulin, GLUT2, glucokinase, and somatostatin.

MODY 4 is so rare that only a single family has been well-studied. A child born with pancreatic agenesis (absence of the pancreas) was found to be homozygous for Pdx-1 mutations. A number of older relatives who were heterozygous had mild hyperglycemia or diabetes. None were severely insulin-deficient and all were controlled with either diet or oral hypoglycemic agents.

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v t e Disease of the pancreas and glucose metabolism
Diabetes	Types type 1 type 2 gestational MODY 1 2 3 4 5 6 Complications See Template:Diabetes
Abnormal blood glucose levels	Hyperglycemia Oxyhyperglycemia Hypoglycemia Whipple's triad
Insulin disorders	Insulin resistance Hyperinsulinism Congenital hyperinsulinism Rabson–Mendenhall syndrome
Other pancreatic disorders and conditions	Pancreatic beta cell function Insulinoma Insulitis

Genetic disorders relating to deficiencies of transcription factor or coregulators

(1) Basic domains

1.2	Feingold syndrome Saethre–Chotzen syndrome
1.3	Tietz syndrome

(2) Zinc finger
DNA-binding domains

2.1	(Intracellular receptor): Thyroid hormone resistance Androgen insensitivity syndrome PAIS MAIS CAIS Kennedy's disease PHA1AD pseudohypoaldosteronism Estrogen insensitivity syndrome X-linked adrenal hypoplasia congenita MODY 1 Familial partial lipodystrophy 3 SF1 XY gonadal dysgenesis
2.2	Barakat syndrome Tricho–rhino–phalangeal syndrome
2.3	Greig cephalopolysyndactyly syndrome/Pallister–Hall syndrome Denys–Drash syndrome Duane-radial ray syndrome MODY 7 MRX 89 Townes–Brocks syndrome Acrocallosal syndrome Myotonic dystrophy 2
2.5	Autoimmune polyendocrine syndrome type 1

(3) Helix-turn-helix domains

3.1	ARX Ohtahara syndrome Lissencephaly X2 MNX1 Currarino syndrome HOXD13 SPD1 synpolydactyly PDX1 MODY 4 LMX1B Nail–patella syndrome MSX1 Tooth and nail syndrome OFC5 PITX2 Axenfeld syndrome 1 POU4F3 DFNA15 POU3F4 DFNX2 ZEB1 Posterior polymorphous corneal dystrophy Fuchs' dystrophy 3 ZEB2 Mowat–Wilson syndrome
3.2	PAX2 Papillorenal syndrome PAX3 Waardenburg syndrome 1&3 PAX4 MODY 9 PAX6 Gillespie syndrome Coloboma of optic nerve PAX8 Congenital hypothyroidism 2 PAX9 STHAG3
3.3	FOXC1 Axenfeld syndrome 3 Iridogoniodysgenesis, dominant type FOXC2 Lymphedema–distichiasis syndrome FOXE1 Bamforth–Lazarus syndrome FOXE3 Anterior segment mesenchymal dysgenesis FOXF1 ACD/MPV FOXI1 Enlarged vestibular aqueduct FOXL2 Premature ovarian failure 3 FOXP3 IPEX
3.5	IRF6 Van der Woude syndrome Popliteal pterygium syndrome

(4) β-Scaffold factors
with minor groove contacts

4.2	Hyperimmunoglobulin E syndrome
4.3	Holt–Oram syndrome Li–Fraumeni syndrome Ulnar–mammary syndrome
4.7	Campomelic dysplasia MODY 3 MODY 5 SF1 SRY XY gonadal dysgenesis Premature ovarian failure 7 SOX10 Waardenburg syndrome 4c Yemenite deaf-blind hypopigmentation syndrome
4.11	Cleidocranial dysostosis

(0) Other transcription factors

0.6	Kabuki syndrome

Ungrouped

Transcription coregulators

Coactivator:	CREBBP Rubinstein–Taybi syndrome
Corepressor:	HR (Atrichia with papular lesions)

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↑ Stoffers, Doris A.; Ferrer, Jorge; L. Clarke, William; Habener, Joel (1997). "Early-onset type-II diabetes mellitus (MODY4) linked to IPF1". Nature Genetics. 17: 138–139. doi:10.1038/ng1097-138.

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