Pseudohypoaldosteronism

Pseudohypoaldosteronism
In pseudohypoaldosteronism, aldosterone is elevated (hyperaldosteronism), but because the body fails to respond to it, it appears similar to hypoaldosteronism.
Classification and external resources
OMIM	177735 614495 614491 614496 614492 145260 264350 177735 614495 614491 614496 614492 145260
DiseasesDB	= [http://apps.who.int/classifications/icd10/browse/2015/en#/N25.8 N25.8.htm ICD10 = N25.8]
eMedicine	article/924100
MeSH	D011546

Pseudohypoaldosteronism (PHA) is a condition that mimics hypoaldosteronism.^[1] However, the condition is due to a failure of response to aldosterone, and levels of aldosterone are actually elevated, due to a lack of feedback inhibition.

This syndrome was first described by Cheek and Perry in 1958.^[2] Later pediatric endocrinologist Aaron Hanukoglu reported that there are two independent forms of PHA with different inheritance patterns: Renal form with autosomal dominant inheritance exhibiting salt loss mainly from the kidneys, and multi-system form with autosomal recessive form exhibiting salt loss from kidney, lung, and sweat and salivary glands.^[3] ^[4]

Treatment of severe forms of PHA requires relatively large amounts of sodium chloride.^[5] These conditions also involve hyperkalemia.^[6]

Types include:

Type	OMIM	Gene	Description
PHA1AD	177735	MLR	with sodium wasting
PHA1AR	264350	SCNN1A, SCNN1B, SCNN1G of the epithelial sodium channel	with sodium wasting
PHA2	145260	WNK4, WNK1	without sodium wasting. TRPV6 may be involved.^[7]

References

↑ "Pseudohypoaldosteronism: Overview - eMedicine Pediatrics: General Medicine". Retrieved 2009-03-06.
↑ Boyle WA, Nerbonne JM (Apr 1991). "A novel type of depolarization-activated K+ current in isolated adult rat atrial myocytes". The American Journal of Physiology 260 (4 Pt 2): H1236–47. doi:10.1136/adc.33.169.252. PMC 2012226. PMID 13545877.
↑ Hanukoglu A (Nov 1991). "Type I pseudohypoaldosteronism includes two clinically and genetically distinct entities with either renal or multiple target organ defects". The Journal of Clinical Endocrinology and Metabolism 73 (5): 936–44. doi:10.1210/jcem-73-5-936. PMID 1939532.
↑ Hanukoglu I, Hanukoglu A (Jan 2016). "Epithelial sodium channel (ENaC) family: Phylogeny, structure-function, tissue distribution, and associated inherited diseases.". Gene 579 (2): 95–132. doi:10.1016/j.gene.2015.12.061. PMID 26772908.
↑ Hanukoglu A, Hanukoglu I (2010). "Clinical improvement in patients with autosomal recessive pseudohypoaldosteronism and the necessity for salt supplementation.". Clinical and Experimental Nephrology 14 (5): 518–519. doi:10.1007/s10157-010-0326-8. PMID 20661616.
↑ Pseudohypoaldosteronism at the US National Library of Medicine Medical Subject Headings (MeSH)
↑ Yang SS, Hsu YJ, Chiga M, Rai T, Sasaki S, Uchida S, Lin SH (Apr 2010). "Mechanisms for hypercalciuria in pseudohypoaldosteronism type II-causing WNK4 knock-in mice". Endocrinology 151 (4): 1829–36. doi:10.1210/en.2009-0951. PMID 20181799.

External links

Hypofunction	Diabetes mellitus types: type 1 type 2 MODY 1 2 3 4 5 6 complications coma angiopathy ketoacidosis nephropathy neuropathy retinopathy cardiomyopathy insulin receptor (Rabson–Mendenhall syndrome) Insulin resistance

Hyperfunction	Hypoglycemia beta cell (Hyperinsulinism) G cell (Zollinger–Ellison syndrome)

Hypothalamic/
pituitary axes

Hypothalamus

gonadotropin
- Kallmann syndrome
- Adiposogenital dystrophy
CRH (Tertiary adrenal insufficiency)
vasopressin (Neurogenic diabetes insipidus)
general (Hypothalamic hamartoma)

Pituitary

Hyperpituitarism	anterior Acromegaly Hyperprolactinaemia Pituitary ACTH hypersecretion posterior (SIADH) general (Nelson's syndrome)

Hypopituitarism	anterior Kallmann syndrome Growth hormone deficiency Hypoprolactinemia ACTH deficiency/Secondary adrenal insufficiency GnRH insensitivity FSH insensitivity LH/hCG insensitivity posterior (Neurogenic diabetes insipidus) general Empty sella syndrome Pituitary apoplexy Sheehan's syndrome Lymphocytic hypophysitis

Thyroid

Hypothyroidism	Iodine deficiency Cretinism Congenital hypothyroidism Myxedema Euthyroid sick syndrome

Hyperthyroidism	Hyperthyroxinemia Thyroid hormone resistance Familial dysalbuminemic hyperthyroxinemia Hashitoxicosis Thyrotoxicosis factitia Graves' disease

Thyroiditis	Acute infectious Subacute De Quervain's Subacute lymphocytic Autoimmune/chronic Hashimoto's Postpartum Riedel's

Goitre	Endemic goitre Toxic nodular goitre Toxic multinodular goiter Thyroid nodule

Parathyroid

Hypoparathyroidism	Hypoparathyroidism Pseudohypoparathyroidism Pseudopseudohypoparathyroidism

Hyperparathyroidism	Primary Secondary Tertiary Osteitis fibrosa cystica

Adrenal

Hyperfunction	aldosterone: Hyperaldosteronism/Primary aldosteronism Conn syndrome Bartter syndrome Glucocorticoid remediable aldosteronism AME Liddle's syndrome 17α CAH cortisol: Cushing's syndrome (Pseudo-Cushing's syndrome) sex hormones: 21α CAH 11β CAH

Hypofunction/ Adrenal insufficiency (Addison's, WF)	aldosterone: Hypoaldosteronism 21α CAH 11β CAH cortisol: CAH Lipoid 3β 11β 17α 21α sex hormones: 17α CAH

Gonads

general: Hypogonadism (Delayed puberty)
Hypergonadism
- Precocious puberty
Hypoandrogenism
Hypoestrogenism
Hyperandrogenism
Hyperestrogenism
Postorgasmic illness syndrome

Height

Multiple

Autoimmune polyendocrine syndrome multiple
- APS1
- APS2
Carcinoid syndrome
Multiple endocrine neoplasia
- 1
- 2A
- 2B
Progeria
Woodhouse-Sakati syndrome

Diseases of the urinary system (N00–N39, 580–599)

Kidney disease

Glomerules

Primarily
nephrotic

Non-proliferative	Minimal change Focal segmental Membranous

Proliferative	Mesangial proliferative Endocapillary proliferative Membranoproliferative/mesangiocapillary

By condition	Diabetic Amyloidosis

Primarily
nephritic,
RPG

Type I RPG/Type II hypersensitivity	Goodpasture's syndrome

Type II RPG/Type III hypersensitivity	Post-streptococcal Lupus DPGN IgA/Berger's

Type III RPG/Pauci-immune	Granulomatosis with polyangiitis Microscopic polyangiitis Churg–Strauss syndrome

General

Tubules

Interstitium

Interstitial nephritis
- Pyelonephritis
- Danubian endemic familial nephropathy

General

General syndromes	Nephritis Nephrosis) Renal failure Acute renal failure Chronic kidney disease Uremic pericarditis Uremia Diabetes insipidus Nephrogenic Renal papilla Renal papillary necrosis Major calyx/pelvis Hydronephrosis Pyonephrosis Reflux nephropathy

Vascular	Renal artery stenosis Renal ischemia Hypertensive nephropathy Renovascular hypertension Renal cortical necrosis

Other	Analgesic nephropathy Renal osteodystrophy Nephroptosis Abderhalden–Kaufmann–Lignac syndrome

Urinary tract

Ureter	Ureteritis Ureterocele Megaureter

Bladder	Cystitis Interstitial cystitis Hunner's ulcer Trigonitis Hemorrhagic cystitis Neurogenic bladder dysfunction Bladder sphincter dyssynergia Vesicointestinal fistula Vesicoureteral reflux

Urethra	Urethritis Non-gonococcal urethritis Urethral syndrome Urethral stricture/Meatal stenosis Urethral caruncle

Any/all	Obstructive uropathy Urinary tract infection Retroperitoneal fibrosis Urolithiasis Bladder stone Kidney stone Renal colic Malakoplakia Urinary incontinence Stress Urge Overflow

Genetic disorder, protein biosynthesis: Transcription factor/coregulator deficiencies

(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)

Diseases of ion channels

Calcium channel

Voltage-gated	CACNA1A Familial hemiplegic migraine 1 Episodic ataxia 2 Spinocerebellar ataxia type-6 CACNA1C Timothy syndrome Brugada syndrome 3 Long QT syndrome 8 CACNA1F Ocular albinism 2 CSNB2A CACNA1S Hypokalemic periodic paralysis 1 Thyrotoxic periodic paralysis 1 CACNB2 Brugada syndrome 4

Ligand gated	RYR1 Malignant hyperthermia Central core disease RYR2 CPVT1 ARVD2

Sodium channel

Voltage-gated	SCN1A Familial hemiplegic migraine 3 GEFS+ 2 Febrile seizure 3A SCN1B Brugada syndrome 6 GEFS+ 1 SCN4A Hypokalemic periodic paralysis 2 Hyperkalemic periodic paralysis Paramyotonia congenita Potassium-aggravated myotonia SCN4B Long QT syndrome 10 SCN5A Brugada syndrome 1 Long QT syndrome 3 SCN9A Erythromelalgia Febrile seizure 3B Paroxysmal extreme pain disorder Congenital insensitivity to pain

Constitutively active	SCNN1B/SCNN1G Liddle's syndrome SCNN1A/SCNN1B/SCNN1G Pseudohypoaldosteronism 1AR

Potassium channel

Voltage-gated	KCNA1 Episodic ataxia 1 KCNA5 Familial atrial fibrillation 7 KCNC3 Spinocerebellar ataxia type-13 KCNE1 Jervell and Lange-Nielsen syndrome Long QT syndrome 5 KCNE2 Long QT syndrome 6 KCNE3 Brugada syndrome 5 KCNH2 Short QT syndrome KCNQ1 Jervell and Lange-Nielsen syndrome Romano–Ward syndrome Short QT syndrome Long QT syndrome 1 Familial atrial fibrillation 3 KCNQ2 BFNS1

Inward-rectifier	KCNJ1 Bartter syndrome 2 KCNJ2 Andersen–Tawil syndrome Long QT syndrome 7 Short QT syndrome) KCNJ11 TNDM3 KCNJ18 Thyrotoxic periodic paralysis 2

Chloride channel

TRP channel

TRPC6
- FSGS2
TRPML1
- Mucolipidosis type IV

Connexin

Porin

AQP2
- Nephrogenic diabetes insipidus 2

See also: ion channels

Deficiencies of intracellular signaling peptides and proteins

GTP-binding protein regulators

GTPase-activating protein	Neurofibromatosis type I Watson syndrome Tuberous sclerosis

Guanine nucleotide exchange factor	Marinesco–Sjögren syndrome Aarskog–Scott syndrome Juvenile primary lateral sclerosis X-Linked mental retardation 1

G protein

Heterotrimeic	cAMP/GNAS1: Pseudopseudohypoparathyroidism Progressive osseous heteroplasia Pseudohypoparathyroidism Albright's hereditary osteodystrophy McCune–Albright syndrome CGL 2

Monomeric	RAS: HRAS Costello syndrome KRAS Noonan syndrome 3 KRAS Cardiofaciocutaneous syndrome RAB: RAB7 Charcot–Marie–Tooth disease RAB23 Carpenter syndrome RAB27 Griscelli syndrome type 2 RHO: RAC2 Neutrophil immunodeficiency syndrome ARF: SAR1B Chylomicron retention disease ARL13B Joubert syndrome 8 ARL6 Bardet–Biedl syndrome 3

MAP kinase

Cardiofaciocutaneous syndrome

Other kinase/phosphatase

Tyrosine kinase	BTK X-linked agammaglobulinemia ZAP70 ZAP70 deficiency

Serine/threonine kinase	RPS6KA3 Coffin-Lowry syndrome CHEK2 Li-Fraumeni syndrome 2 IKBKG Incontinentia pigmenti STK11 Peutz–Jeghers syndrome DMPK Myotonic dystrophy 1 ATR Seckel syndrome 1 GRK1 Oguchi disease 2 WNK4/WNK1 Pseudohypoaldosteronism 2

Tyrosine phosphatase	PTEN Bannayan–Riley–Ruvalcaba syndrome Lhermitte–Duclos disease Cowden syndrome Proteus-like syndrome MTM1 X-linked myotubular myopathy PTPN11 Noonan syndrome 1 LEOPARD syndrome Metachondromatosis

Signal transducing adaptor proteins

Other

NF2
- Neurofibromatosis type II
NOTCH3
- CADASIL
PRKAR1A
- Carney complex
PRKAG2
- Wolff–Parkinson–White syndrome
PRKCSH
- PRKCSH Polycystic liver disease
XIAP
- XIAP2

See also intracellular signaling peptides and proteins

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