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__NOTOC__
{{Autoimmune polyendocrine syndrome}}
{{CMG}}; {{AE}}{{Akshun}}
{{SK}} Polyglandular autoimmune syndrome; Polyendocrine autoimmune syndrome; Polyglandular autoimmune syndrome type 1; Multiple endocrine deficiency syndrome; Autoimmune polyendocrinopathy-candidiasis-ectodermal dystrophy syndrome; Schmidt syndrome; APS type 1; APS type 2; APS type 3
'''For patient information click [[{{PAGENAME}} (patient information)|here]]'''
'''For patient information click [[{{PAGENAME}} (patient information)|here]]'''
{{Infobox_Disease |
{{Infobox_Disease |
   Name          = Autoimmune polyendocrine syndrome |
   Name          = Autoimmune polyendocrine syndrome |
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   OMIM_mult      = {{OMIM2|269200}} |
   OMIM_mult      = {{OMIM2|269200}} |
   MedlinePlus    = |
   MedlinePlus    = |
  eMedicineSubj  = med |
  eMedicineTopic = 1867 |
  eMedicine_mult  = {{eMedicine2|med|1868}} |
   MeshID        = |
   MeshID        = |
}}
}}
{{SI}}
{{CMG}}


==Overview==
==[[Autoimmune polyendocrine syndrome overview|Overview]]==
'''Autoimmune polyendocrine syndromes''' are heterogeneous group of [[rare disease]]s characterized by [[autoimmune]] activity against more than one [[endocrine organ]]s, although non-endocrine organs can be affected.


There are three "autoimmune polyendocrine syndromes", and a number of other diseases which have endocrine autoimmunity as one of their features.
==[[Autoimmune polyendocrine syndrome historical perspective|Historical Perspective]]==


== The syndromes ==
==[[Autoimmune polyendocrine syndrome classification|Classification]]==
=== Type 1 ===
''Autoimmune polyendocrine syndrome, type 1'' is also known as the [[candidiasis]]-[[hypoparathyroidism]]-[[Addison's disease]]-syndrome after its main features:
* A mild [[immune deficiency]], leading to persistent mucosal and cutaneous infections with [[Candida (genus)|candida]] yeasts. There is also decreased function of the [[spleen]] (asplenism).
* Autoimmune dysfunction of the [[parathyroid gland]] (leading to [[hypocalcemia]]) and the [[adrenal gland]] (Addison's disease: [[hypoglycemia]], [[hypotension]] and severe reactions in disease).
* Other disease associations are:
** [[hypothyroidism]]
** [[hypogonadism]] and infertility
** [[diabetes mellitus]] (type 1)
** [[vitiligo]] (depigmentation of the skin)
** [[alopecia]] (baldness)
** [[malabsorption]]
** [[pernicious anemia]]
** [[hepatitis#autoimmune|chronic active (autoimmune) hepatitis]]


As opposed to type 2, this syndrome inherits in an [[autosomal recessive]] fashion and is due to a defect in ''[[Autoimmune regulator|AIRE]]'' ("''a''uto''i''mmune ''re''gulator"), a [[gene]] located on the 21st [[chromosome]]. Normal function of ''AIRE'', a [[transcription factor]], appears to be to confer [[immune tolerance]] for antigens from endocrine organs.
==[[Autoimmune polyendocrine syndrome pathophysiology|Pathophysiology]]==


A EU-funded consortium is currently doing translational research on this condition and has establised w webpage at [http://www.apeced.net EurAPS].
==[[Autoimmune polyendocrine syndrome causes|Causes]]==


=== Type 2 ===
==[[Autoimmune polyendocrine syndrome differential diagnosis|Differentiating Autoimmune polyendocrine syndrome from other Diseases]]==
''Autoimmune polyendocrine syndrome, type 2'' (also known as "Schmidt's syndrome") is more heterogeneous, occurs more often and has not been linked to one [[gene]]. Rather, patients are at a higher risk when they carry a particular [[HLA]] genotype (DQ2, DQ8 and DRB1*0404).


Features of this syndrome are:
==[[Autoimmune polyendocrine syndrome epidemiology and demographics|Epidemiology and Demographics]]==
* Addison's disease
* hypothyroidism
* diabetes mellitus (type 1)
* less common associations:
** hypogonadism
** vitiligo


Some researchers favour splitting this syndrome into three distinct syndromes (numbering 2, 3 and 4), but research evidence for these distinct combinations is not convincing.
==[[Autoimmune polyendocrine syndrome risk factors|Risk Factors]]==


=== XPID ===
==[[Autoimmune polyendocrine syndrome screening|Screening]]==
The most serious but rarest form is the ''X-linked polyendocrinopathy, immunodeficiency and [[diarrhea]]''-syndrome, also called [[IPEX]]. This is due to mutation of the ''[[FOXP3]]'' gene on the X chromosome. Most patients develop diabetes and diarrhea as neonates and many die due to autoimmune activity against many organs. Boys are affected, while girls are carriers and might suffer mild disease.


== Other diseases ==
==[[Autoimmune polyendocrine syndrome natural history, complications and prognosis|Natural History, Complications and Prognosis]]==
Other diseases featuring polyendocrine autoimmunity:
* Chromosomal abnormalities ([[Down's syndrome]]) increase the risk of endocrine autoimmunity
* POEMS syndrome - the ''E'' is for endocrinopathy; the cause is a [[paraprotein]] excreted by a plasmacytoma or [[multiple myeloma]]; other features are [[polyneuropathy]], organomegaly ([[hepatomegaly]] and [[splenomegaly]]), M-protein (paraprotein) and skin changes.
* Several very [[rare disease]]s.


== Management ==
==Diagnosis==
In principle, the component diseases are managed as usual. The challenge is to detect the possibility of any of the above syndromes, and to anticipate other manifestations. For example, in a patient with known Type 2 autoimmune polyendocrine syndrome but no features of [[Addison's disease]], regular screening for [[antibody|antibodies]] against 21-hydroxylase (a feature of Addison's) may prompt early intervention and [[hydrocortisone]] replacement to prevent characteristic crises.
[[Autoimmune polyendocrine syndrome history and symptoms| History and Symptoms]] | [[Autoimmune polyendocrine syndrome physical examination | Physical Examination]] | [[Autoimmune polyendocrine syndrome laboratory findings|Laboratory Findings]] | [[Autoimmune polyendocrine syndrome electrocardiogram|Electrocardiogram]] | [[Autoimmune polyendocrine syndrome x ray|X Ray]] | [[Autoimmune polyendocrine syndrome CT|CT]] | [[Autoimmune polyendocrine syndrome MRI|MRI]] | [[Autoimmune polyendocrine syndrome echocardiography or ultrasound|Ultrasound]] | [[Autoimmune polyendocrine syndrome other imaging findings|Other Imaging Findings]] | [[Autoimmune polyendocrine syndrome other diagnostic studies|Other Diagnostic Studies]]


== Sources ==
==Treatment==
* Eisenbarth GS, Gottlieb PA. Autoimmune polyendocrine syndromes. [[New England Journal of Medicine|N Engl J Med]] 2004;350:2068-79. PMID 15141045.
[[Autoimmune polyendocrine syndrome medical therapy|Medical Therapy]] | [[Autoimmune polyendocrine syndrome surgery|Surgery]] | [[Autoimmune polyendocrine syndrome primary prevention|Primary Prevention]] | [[Autoimmune polyendocrine syndrome secondary prevention|Secondary Prevention]] | [[Autoimmune polyendocrine syndrome cost-effectiveness of therapy|Cost-Effectiveness of Therapy]] | [[Autoimmune polyendocrine syndrome future or investigational therapies|Future or Investigational Therapies]]


==External links==
==Case Studies==
[[Autoimmune polyendocrine syndrome case study one|Case #1]]
 
==References==
{{reflist|2}}


{{Endocrine pathology}}
{{Endocrine pathology}}
{{SIB}}
 
[[Category:Endocrinology]]
[[Category:Endocrinology]]
[[Category:Autoimmune diseases]]
[[Category:Disease]]
[[Mature chapter]]


[[De:Polyendokrine Autoimmunerkrankungen]]
[[De:Polyendokrine Autoimmunerkrankungen]]

Latest revision as of 13:02, 10 October 2017

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Akshun Kalia M.B.B.S.[2]

Synonyms and keywords: Polyglandular autoimmune syndrome; Polyendocrine autoimmune syndrome; Polyglandular autoimmune syndrome type 1; Multiple endocrine deficiency syndrome; Autoimmune polyendocrinopathy-candidiasis-ectodermal dystrophy syndrome; Schmidt syndrome; APS type 1; APS type 2; APS type 3

For patient information click here

Autoimmune polyendocrine syndrome
ICD-10 E31.0
OMIM 240300 269200
DiseasesDB 29212 Template:DiseasesDB2

Overview

Historical Perspective

Classification

Pathophysiology

Causes

Differentiating Autoimmune polyendocrine syndrome from other Diseases

Epidemiology and Demographics

Risk Factors

Screening

Natural History, Complications and Prognosis

Diagnosis

History and Symptoms | Physical Examination | Laboratory Findings | Electrocardiogram | X Ray | CT | MRI | Ultrasound | Other Imaging Findings | Other Diagnostic Studies

Treatment

Medical Therapy | Surgery | Primary Prevention | Secondary Prevention | Cost-Effectiveness of Therapy | Future or Investigational Therapies

Case Studies

Case #1

References

De:Polyendokrine Autoimmunerkrankungen


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