Pseudohypoparathyroidism, Type Ia; Php1a

Description

Pseudohypoparathyroidism is a term applied to a heterogeneous group of disorders whose common feature is end-organ resistance to parathyroid hormone (PTH ). In addition to PTH resistance, PHP Ia is characterized by resistance to other hormones, including thyroid-stimulating hormone (TSH; see TSHB, {188540}) and gonadotropins. PHP Ia is associated with a constellation of clinical features referred to as Albright hereditary osteodystrophy (AHO), which includes short stature, obesity, round facies, subcutaneous ossifications, brachydactyly, and other skeletal anomalies. Some patients have mental retardation (Mantovani and Spada, 2006).In contrast, pseudopseudohypoparathyroidism (PPHP ) is characterized by the physical findings of AHO but without hormone resistance (Kinard et al., 1979; Fitch, 1982; Mantovani and Spada, 2006).PHP1A occurs only after maternal inheritance of the molecular defect, whereas PPHP occurs only after paternal inheritance of the molecular defect (Davies and Hughes, 1993; Wilson et al., 1994). This is an example of imprinting, with differential gene expression depending on the parent of origin of the allele. See INHERITANCE and PATHOGENESIS sections.

Clinical Features

Top most frequent phenotypes and symptoms related to Pseudohypoparathyroidism, Type Ia; Php1a

  • Intellectual disability
  • Seizures
  • Short stature
  • Nystagmus
  • Strabismus
  • Sensorineural hearing impairment
  • Cataract
  • Cognitive impairment
  • Depressed nasal bridge
  • Hypertension

And another 73 symptoms. If you need more information about this disease we can help you.

Click here to know more about Mendelian.

Incidence and onset information

— Currently we don't have prevalence information about this disease (Not enough data available about incidence and published cases.)
No data available about the known clinical features onset.

Alternative names

Pseudohypoparathyroidism, Type Ia; Php1a Is also known as albright hereditary osteodystrophy with multiple hormone resistance, php ia.

Researches and researchers

Currently, we don't have any information about doctors, researches or researchers related to this disease. Please contact us if you would like to appear here.


Mendelian

Accelerate your rare disease diagnosis with us

Learn more

Pseudohypoparathyroidism, Type Ia; Php1a Recommended genes panels

Panel Name, Specifity and genes Tested/covered
Pseudohypoparathyroidism Type 1B.

By Johns Hopkins DNA Diagnostic Laboratory Johns Hopkins Hospital (United States).

GNAS
Specificity
100 %
Genes
100 %
Pseudohypoparathyroidism Type 1A.

By Johns Hopkins DNA Diagnostic Laboratory Johns Hopkins Hospital (United States).

GNAS
Specificity
100 %
Genes
100 %
Albright Hereditary Osteodystrophy (GNAS).

By Center for Genetics at Saint Francis Saint Francis Hospital (United States).

GNAS
Specificity
100 %
Genes
100 %
Platelet Disorders.

By Knight Diagnostic Laboratories - Molecular Diagnostic Center Oregon Health & Science University (United States).

RUNX1, STIM1, TBXA2R, TBXAS1, USF1, VPS33B, VWF, WAS, GP6, HPS3, HPS4, CD36, HPS5, DTNBP1, P2RY12, HPS6, MASTL, LYST, VIPAS39, FERMT3 , (...)

View the complete list with 34 more genes
Specificity
2 %
Genes
100 %
MyeloidDx by NGS.

By Molecular Genetics Diagnostic Laboratory Detroit Medical Center University Laboratories (United States).

RUNX1, SF3B1, SRSF2, BRAF, SMC1A, STAG2, TP53, U2AF1, KDM6A, WT1, IKZF1, CALR, CBL, CBLB, SETBP1, FBXW7, CDKN2A, PHF6, ASXL1, CEBPA , (...)

View the complete list with 32 more genes
Specificity
2 %
Genes
100 %
MyeloidDx by NGS.

By Molecular Genetics Diagnostic Laboratory Detroit Medical Center University Laboratories (United States).

RUNX1, SF3B1, SRSF2, BRAF, SMC1A, STAG2, TP53, U2AF1, KDM6A, WT1, IKZF1, CALR, CBL, CBLB, SETBP1, CBLC, FBXW7, CDKN2A, PHF6, CEBPA , (...)

View the complete list with 31 more genes
Specificity
2 %
Genes
100 %
Monogenic Obesity Sequencing Panel.

By Genetic Services Laboratory University of Chicago (United States).

SDCCAG8, SIM1, UCP3, ARL6, TRIM32, AFF4, PHF6, SETD2, BBS7, TTC8, IFT74, VPS13B, CUL4B, PRMT7, BBS10, BBS12, WDPCP, CEP290, KIDINS220, BBS9 , (...)

View the complete list with 18 more genes
Specificity
3 %
Genes
100 %
Hypoparathyroidism Deletion/Duplication Panel.

By Genetic Services Laboratory University of Chicago (United States).

STX16, TBCE, TBX1, CASR, CHD7, FAM111A, CYP24A1, AIRE, GATA3, GCM2, GNA11, GNAS, HADHA, HADHB, PDE4D, PRKAR1A, PTH
Specificity
6 %
Genes
100 %

We have 116 more panels available in our App

Get the app

Sources and references

You can check the following sources for additional information.

OMIM ORPHANET Rare Disease Search Engine

If you liked this article maybe you will also find interesting the following in-depth articles about other rare diseases, like ULLRICH CONGENITAL MUSCULAR DYSTROPHY 1; UCMD1

Need help with a diagnosis?

Learn more about how to achieve it with Mendelian


Learn more