3 beta-hydroxysteroid dehydrogenase deficiency: Difference between revisions

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==Overview==
==Overview==
3 beta-hydroxysteroid dehydrogenase deficiency is a rare disease of congenital. It is characterized by impaired pathway biosynthesis of [[progestins]], [[mineralocorticoids]], [[glucocorticoids]], and [[androgens]]. As a result of [[cortisol]] absence, [[corticotropin]] ([[ACTH]]) secretion increases and leads to produce 3-hydroxy-delta-5-steroids pregnenolone, [[17-hydroxypregnenolone]], and [[dehydroepiandrosterone]] ([[DHEA]]), also their sulfates. In peripheral tissues the conversion of DHEA sulfate (DHEAS) to testosterone, is responsible for virilization in females. 3 beta-hydroxysteroid dehydrogenase deficiency is caused by a mutation in the HSD3B2 [[gene]]. Symptoms of 3 beta-hydroxysteroid dehydrogenase deficiency may include symptoms of both [[cortisol]] and [[aldosterone]] deficiency such as feeding difficulties, [[vomiting]], [[volume depletion]], [[undervirilization]] in newborn males, and mild [[virilization]] and [[clitoromegaly]] in newborn female. Diagnosis for 3 beta-hydroxysteroid dehydrogenase deficiency is based on delta-5-17-hydroxypregnenolone high levels. The mainstay of therapy for 3 beta-hydroxysteroid dehydrogenase deficiency is [[hydrocortisone]] and [[fludrocortisone acetate]]. The reconstruction surgery for [[ambiguous genitalia]] in genetically male patients may be applied.  
3 beta-hydroxysteroid dehydrogenase deficiency is a rare disease due to [[congenital adrenal hyperplasia]]. It is characterized by impaired biosynthesis pathway of [[progestins]], [[mineralocorticoids]], [[glucocorticoids]], and [[androgens]]. As a result of [[cortisol]] absence, [[corticotropin]] ([[ACTH]]) secretion increases and leads to produce 3-hydroxy-delta-5-steroids pregnenolone, [[17-hydroxypregnenolone]], and [[dehydroepiandrosterone]] ([[DHEA]]), also their sulfates. In peripheral tissues the conversion of [[DHEA sulfate]] ([[DHEAS]]) to [[testosterone]], is responsible for [[virilization]] in females. 3 beta-hydroxysteroid dehydrogenase deficiency is caused by a [[mutation]] in the HSD3B2 [[gene]]. Symptoms of 3 beta-hydroxysteroid dehydrogenase deficiency may include symptoms of both [[cortisol]] and [[aldosterone]] deficiency such as [[feeding difficulties]], [[vomiting]], [[volume depletion]], [[undervirilization]] in [[newborn]] [[males]], and mild [[virilization]] and [[clitoromegaly]] in [[newborn]] [[female]]. Diagnosis for 3 beta-hydroxysteroid dehydrogenase deficiency is based on [[17-hydroxypregnenolone|delta-5-17-hydroxypregnenolone]] high levels in serum laboratory tests. The mainstay of therapy for this disease is [[hydrocortisone]] and [[fludrocortisone acetate]]. The reconstruction surgery for [[ambiguous genitalia]] in genetically male patients may be applied.  
==Historical Perspective==
==Historical Perspective==
3 beta-hydroxysteroid dehydrogenase deficiency first time described in 1962, in a patient with [[ambiguous genitalia]] and salt wasting.<ref name="pmid13968789">{{cite journal |vauthors=BONGIOVANNI AM |title=The adrenogenital syndrome with deficiency of 3 beta-hydroxysteroid dehydrogenase |journal=J. Clin. Invest. |volume=41 |issue= |pages=2086–92 |year=1962 |pmid=13968789 |pmc=291138 |doi=10.1172/JCI104666 |url=}}</ref>  
3 beta-hydroxysteroid dehydrogenase deficiency was first time described in 1962, in a patient with [[ambiguous genitalia]] and salt wasting.<ref name="pmid13968789">{{cite journal |vauthors=BONGIOVANNI AM |title=The adrenogenital syndrome with deficiency of 3 beta-hydroxysteroid dehydrogenase |journal=J. Clin. Invest. |volume=41 |issue= |pages=2086–92 |year=1962 |pmid=13968789 |pmc=291138 |doi=10.1172/JCI104666 |url=}}</ref>  
==Classification==
==Classification==
There are two types of 3 beta-hydroxysteroid dehydrogenase deficiency: the salt-wasting, and non-salt-wasting type.
There are two types of 3 beta-hydroxysteroid dehydrogenase deficiency:  
* [[Salt]]-wasting  
* Non-salt-wasting  
 
==Pathophysiology==
==Pathophysiology==
The pathogenesis of 3 beta-hydroxysteroid dehydrogenase deficiency is characterized by impaired pathway biosynthesis of [[progestins]], [[mineralocorticoids]], [[glucocorticoids]], and [[androgens]]. As a result of [[cortisol]] absence, [[corticotropin]] ([[ACTH]]) secretion increases and leads to produce 3-hydroxy-delta-5-steroids pregnenolone, [[17-hydroxypregnenolone]], and [[dehydroepiandrosterone]] ([[DHEA]]), also their sulfates. In peripheral tissues the conversion of DHEA sulfate (DHEAS) to testosterone, is responsible for virilization in females.<ref name="pmid13968789">{{cite journal |vauthors=BONGIOVANNI AM |title=The adrenogenital syndrome with deficiency of 3 beta-hydroxysteroid dehydrogenase |journal=J. Clin. Invest. |volume=41 |issue= |pages=2086–92 |year=1962 |pmid=13968789 |pmc=291138 |doi=10.1172/JCI104666 |url=}}</ref>
The pathogenesis of 3 beta-hydroxysteroid dehydrogenase deficiency is characterized by impaired pathway of biosynthesis of [[progestins]], [[mineralocorticoids]], [[glucocorticoids]], and [[androgens]]. As a result of [[cortisol]] absence, [[corticotropin]] ([[ACTH]]) secretion increases the production of 3-hydroxy-delta-5-steroids [[pregnenolone]], [[17-hydroxypregnenolone]], and [[dehydroepiandrosterone]] ([[DHEA]]). [[Adrenocorticotropic hormone|ACTH]] secretion also increases the production of their [[sulfates]]. In peripheral [[tissues]] the conversion of [[DHEA sulfate]] ([[DHEAS]]) to [[testosterone]] is responsible for [[virilization]] in [[females]].<ref name="pmid13968789">{{cite journal |vauthors=BONGIOVANNI AM |title=The adrenogenital syndrome with deficiency of 3 beta-hydroxysteroid dehydrogenase |journal=J. Clin. Invest. |volume=41 |issue= |pages=2086–92 |year=1962 |pmid=13968789 |pmc=291138 |doi=10.1172/JCI104666 |url=}}</ref>
==Causes==
==Causes==
3 beta-hydroxysteroid dehydrogenase deficiency is caused by a mutation in the HSD3B2 [[gene]].
3 beta-hydroxysteroid dehydrogenase deficiency is caused by a [[mutation]] in the HSD3B2 [[gene]].
==Differentiating 3 beta-hydroxysteroid dehydrogenase deficiency from other Diseases==
==Differentiating 3 Beta-hydroxysteroid Dehydrogenase Deficiency From Other Diseases==
3 beta-hydroxysteroid dehydrogenase deficiency must be differentiated from other diseases that cause [[ambiguous genitalia]] such as: [[21-hydroxylase deficiency]], [[11 beta hydroxylase deficiency|11-β hydroxylase deficiency]], [[17 alpha-hydroxylase deficiency]], gestational [[hyperandrogenism]] and P450-oxidoreductase deficiency.
 
=== Differentials of ambiguous genitalia ===
3 beta-hydroxysteroid dehydrogenase deficiency must be differentiated from diseases that cause [[ambiguous genitalia]]:<ref name="pmid17875484">{{cite journal |vauthors=Hughes IA, Nihoul-Fékété C, Thomas B, Cohen-Kettenis PT |title=Consequences of the ESPE/LWPES guidelines for diagnosis and treatment of disorders of sex development |journal=Best Pract. Res. Clin. Endocrinol. Metab. |volume=21 |issue=3 |pages=351–65 |year=2007 |pmid=17875484 |doi=10.1016/j.beem.2007.06.003 |url=}}</ref><ref name="pmid10857554">{{cite journal |vauthors=White PC, Speiser PW |title=Congenital adrenal hyperplasia due to 21-hydroxylase deficiency |journal=Endocr. Rev. |volume=21 |issue=3 |pages=245–91 |year=2000 |pmid=10857554 |doi=10.1210/edrv.21.3.0398 |url=}}</ref>
 
{| class="wikitable"
! rowspan="2" align="center" style="background:#4479BA; color: #FFFFFF;" + |Disease name
! colspan="2" align="center" style="background:#4479BA; color: #FFFFFF;" + |Steroid status
! rowspan="2" align="center" style="background:#4479BA; color: #FFFFFF;" + |Important clinical findings
|-
! align="center" style="background:#4479BA; color: #FFFFFF;" + |Increased
! align="center" style="background:#4479BA; color: #FFFFFF;" + |Decreased
|-
|3 beta-hydroxysteroid dehydrogenase deficiency
|
* [[Dehydroepiandrosterone]]
* [[17-hydroxypregnenolone]]
* [[Pregnenolone]]
|
* [[Cortisol]]
* [[Aldosterone]]
|
* [[Vomiting]], [[volume depletion]], [[hyponatremia]], and [[hyperkalemia]]
* 46-XY infants often show [[undervirilization]], due to a block in [[testosterone]] synthesis
|-
|[[21-hydroxylase deficiency|Classic type of 21-hydroxylase deficiency]]
|
* [[17-Hydroxyprogesterone|17-hydroxyprogesterone]]
* [[Progesterone]]
* [[Androstenedione]]
* [[DHEA]]
|
* [[Aldosterone]]
* [[Corticosterone]] (salt-wasting)
* [[Cortisol]] ([[virilization]])
|
* [[Ambiguous genitalia]] in female
* [[Virilization]] in female
* Salt-wasting
* [[Hypotension]] and [[hyperkalemia]]
|-
|[[11β-hydroxylase deficiency|11-β hydroxylase deficiency]]
|
* [[Deoxycorticosterone]]
* 11-Deoxy-[[cortisol]]
* [[17-Hydroxyprogesterone|17-hydroxyprogesterone]] (mild elevation)
|
* [[Cortisol]]
* [[Corticosterone]]
* [[Aldosterone]]
|
* [[Ambiguous genitalia]] in female
* [[Hypertension]] and [[hypokalemia]]
* [[Virilization]]
|-
|[[17 alpha-hydroxylase deficiency|17-α hydroxylase deficiency]]
|
* [[Deoxycorticosterone]]
* [[Corticosterone]]
* [[Progesterone]]
|
* [[Cortisol]]
* [[Aldosterone]]
|
* [[Ambiguous genitalia]] in male
* [[Hypertension]]
 
* [[Primary amenorrhea]]
 
* Absence of [[secondary sexual characteristics]]
 
* Minimal [[body hair]]
|-
| Gestational [[hyperandrogenism]]
| colspan="2" |
* Maternal serum [[androgen]] concentrations (usually [[testosterone]] and [[androstenedione]]) are high
* If [[virilization]] is caused by exogenous hormone administration, the values may be low because the offending hormone is usually a synthetic [[steroid]] not measured in assays for [[testosterone]] or other [[androgens]]
|
* [[Androgen]] excess in mother
* History of [[androgen]] containing [[medication]]  consumption during [[pregnancy]] in mother
* [[Virilization]] in a 46,XX individual with normal female internal anatomy
* Causes include maternal [[luteoma]] or theca-[[lutein]] [[cysts]], and [[placental]] [[aromatase]] enzyme deficiency
|}
 
=== Differentials based on virilization and hirsutism ===
3 beta-hydroxysteroid dehydrogenase deficiency must be differentiated from diseases that cause [[virilization]] and [[hirsutism]] in female:<ref name="pmid24830586">{{cite journal |vauthors=Hohl A, Ronsoni MF, Oliveira Md |title=Hirsutism: diagnosis and treatment |journal=Arq Bras Endocrinol Metabol |volume=58 |issue=2 |pages=97–107 |year=2014 |pmid=24830586 |doi= |url=}}</ref><ref name="pmid10857554">{{cite journal |vauthors=White PC, Speiser PW |title=Congenital adrenal hyperplasia due to 21-hydroxylase deficiency |journal=Endocr. Rev. |volume=21 |issue=3 |pages=245–91 |year=2000 |pmid=10857554 |doi=10.1210/edrv.21.3.0398 |url=}}</ref><ref name="ISBN:978-0323297387">{{cite book | last = Melmed | first = Shlomo | title = Williams textbook of endocrinology | publisher = Elsevier | location = Philadelphia, PA | year = 2016 | isbn = 978-0323297387 }}=</ref>
 
{| class="wikitable"
! align="center" style="background:#4479BA; color: #FFFFFF;" + |Disease name
! align="center" style="background:#4479BA; color: #FFFFFF;" + |Steroid status
! align="center" style="background:#4479BA; color: #FFFFFF;" + |Other laboratory
! align="center" style="background:#4479BA; color: #FFFFFF;" + |Important clinical findings
|-
|3 beta-hydroxysteroid dehydrogenase deficiency
|Increased:
* [[DHEA]]
* [[17-hydroxypregnenolone]]
* [[Pregnenolone]]
Decreased:
* [[Cortisol]]
* [[Aldosterone]]
|
* Low [[testosterone]] levels
|
* Salt-wasting [[adrenal crisis]] in infancy
 
* Mild [[virilization]] of genetically female infants
* [[Undervirilization]] of genetically male infants, making it the only form of [[CAH]] which can cause [[ambiguous genitalia]] in both genetic sexes.  
|-
|Non-classic type of [[21-hydroxylase deficiency]]
|Increased:
* [[17-Hydroxyprogesterone|17-hydroxyprogesterone]]
* Exaggerated [[Androstenedione]], [[DHEA]], and [[17-Hydroxyprogesterone|17-hydroxyprogesterone]] in response to [[ACTH]]
|
* Low [[testosterone]] levels
|
* No symptoms in infancy and male
 
* [[Virilization]] in females
|-
|[[11β-hydroxylase deficiency|11-β hydroxylase deficiency]]
|Increased:
* DOC
* 11-Deoxy-[[Cortisol]]
Decreased:
* [[Cortisol]]
* [[Corticosterone]]
* [[Aldosterone]]
|
* Low [[testosterone]] levels
|
* [[Hypertension]] and [[hypokalemia]]
* [[Virilization]]
|-
|[[Polycystic ovary syndrome ]]
|
* High [[DHEAS]] and [[androstenedione]] levels
|
* Low [[testosterone]] levels
|
* [[Polycystic ovaries]] in sonography
* [[Obesity]]
* [[PCOS]] is the most common cause of [[hirsutism]] in women
* No evidence another diagnosis
|-
|[[Adrenal tumor|Adrenal tumors]]
|
* Variable levels depends on [[tumor]] type
|
* Low [[testosterone]] level
|
* Older age
* Rapidly progressive symptoms
|-
|[[Ovarian]] [[virilizing]] [[tumor]]
|
* Variable levels depends on [[tumor]] type
|
* [[Testosterone]] is high
|
* Older age
* Rapidly progressive symptoms
|-
|[[Cushing's syndrome]]
|
* Increase [[cortisol]] & [[metabolites]]
* Variable other [[steroids]]
|
* Variable [[mineralocorticoid]] excess
|
* [[Cushingoid appearance]]
|-
|[[Hyperprolactinemia]]
|
* Normal levels of most of [[steroids]]
|
* Increased [[prolactin]]
|
* [[Infertility]], [[galactorrhea]]
|}
 
==Epidemiology and Demographics==
==Epidemiology and Demographics==
The [[prevalence]] of 3 beta-hydroxysteroid dehydrogenase deficiency is unknown. At least 60 affected individuals have been reported.<ref name="url3-beta-hydroxysteroid dehydrogenase deficiency - Genetics Home Reference">{{cite web |url=https://ghr.nlm.nih.gov/condition/3-beta-hydroxysteroid-dehydrogenase-deficiency#statistics |title=3-beta-hydroxysteroid dehydrogenase deficiency - Genetics Home Reference |format= |work= |accessdate=}}</ref>
The [[prevalence]] of 3 beta-hydroxysteroid dehydrogenase deficiency is unknown. At least 60 affected individuals have been reported.<ref name="url3-beta-hydroxysteroid dehydrogenase deficiency - Genetics Home Reference">{{cite web |url=https://ghr.nlm.nih.gov/condition/3-beta-hydroxysteroid-dehydrogenase-deficiency#statistics |title=3-beta-hydroxysteroid dehydrogenase deficiency - Genetics Home Reference |format= |work= |accessdate=}}</ref>
==Risk Factors==
==Risk Factors==
Common risk factors in the development of 3 beta-hydroxysteroid dehydrogenase deficiency is [[family history]] of this disease.
Common [[risk factors]] in the development of 3 beta-hydroxysteroid dehydrogenase deficiency is [[family history]] of this disease.
== Diagnosis ==
== Diagnosis ==
=== Symptoms ===
=== Symptoms ===
Symptoms of 3 beta-hydroxysteroid dehydrogenase deficiency may include symptoms of both [[cortisol]] and [[aldosterone]] deficiency such as feeding difficulties, [[vomiting]], [[volume depletion]], [[muscle weakness]]; [[undervirilization]] in newborn males, and mild [[virilization]] and [[clitoromegaly]] in newborn female. <ref name="pmid7626445">{{cite journal |vauthors=Simard J, Rheaume E, Mebarki F, Sanchez R, New MI, Morel Y, Labrie F |title=Molecular basis of human 3 beta-hydroxysteroid dehydrogenase deficiency |journal=J. Steroid Biochem. Mol. Biol. |volume=53 |issue=1-6 |pages=127–38 |year=1995 |pmid=7626445 |doi= |url=}}</ref>
Symptoms of 3 beta-hydroxysteroid dehydrogenase deficiency may include symptoms of both [[cortisol]] and [[aldosterone]] deficiency such as [[feeding difficulties]], [[vomiting]], [[volume depletion]], [[muscle weakness]], [[undervirilization]] in male newborns, and mild [[virilization]] and [[clitoromegaly]] in newborn female. <ref name="pmid7626445">{{cite journal |vauthors=Simard J, Rheaume E, Mebarki F, Sanchez R, New MI, Morel Y, Labrie F |title=Molecular basis of human 3 beta-hydroxysteroid dehydrogenase deficiency |journal=J. Steroid Biochem. Mol. Biol. |volume=53 |issue=1-6 |pages=127–38 |year=1995 |pmid=7626445 |doi= |url=}}</ref>
=== Physical Examination ===
=== Physical Examination ===
Physical examination may be remarkable for: [[undervirilization]] in newborn males and mild [[virilization]] and [[clitoromegaly]] in newborn female.
Physical examination may be remarkable for:
* [[Undervirilization]] in [[newborn]] [[males]]
* Mild [[virilization]] and [[clitoromegaly]] in [[newborn]] [[female]].
 
=== Laboratory Findings ===
=== Laboratory Findings ===
Diagnosis for 3 beta-hydroxysteroid dehydrogenase deficiency is based on delta-5-17-hydroxypregnenolone high levels. <ref name="pmid12050224">{{cite journal |vauthors=Lutfallah C, Wang W, Mason JI, Chang YT, Haider A, Rich B, Castro-Magana M, Copeland KC, David R, Pang S |title=Newly proposed hormonal criteria via genotypic proof for type II 3beta-hydroxysteroid dehydrogenase deficiency |journal=J. Clin. Endocrinol. Metab. |volume=87 |issue=6 |pages=2611–22 |year=2002 |pmid=12050224 |doi=10.1210/jcem.87.6.8615 |url=}}</ref> Other laboratory findings include: hyponatremia, hyperkalemia.
Diagnosis for 3 beta-hydroxysteroid dehydrogenase deficiency is based on high levels of delta-5-17-hydroxypregnenolone. <ref name="pmid12050224">{{cite journal |vauthors=Lutfallah C, Wang W, Mason JI, Chang YT, Haider A, Rich B, Castro-Magana M, Copeland KC, David R, Pang S |title=Newly proposed hormonal criteria via genotypic proof for type II 3beta-hydroxysteroid dehydrogenase deficiency |journal=J. Clin. Endocrinol. Metab. |volume=87 |issue=6 |pages=2611–22 |year=2002 |pmid=12050224 |doi=10.1210/jcem.87.6.8615 |url=}}</ref> Other laboratory findings incliude, [[hyponatremia]] and [[hyperkalemia]].
 
== Treatment ==
== Treatment ==
=== Medical Therapy ===
=== Medical Therapy ===
The mainstay of therapy for 3 beta-hydroxysteroid dehydrogenase deficiency is [[hydrocortisone]] and [[fludrocortisone acetate]]. Gender-appropriate replacement of [[androgens]] or [[estrogens]] with [[progestins]] is necessary at the [[puberty]] time.
The mainstay of therapy for 3 beta-hydroxysteroid dehydrogenase deficiency is [[hydrocortisone]] and [[fludrocortisone acetate]] adiminstration. Gender-appropriate replacement of [[androgens]] or [[estrogens]] with [[progestins]] is necessary at the [[puberty]] time.
The goal of therapy includes the following: <ref name="pmid28576284">{{cite journal |vauthors=El-Maouche D, Arlt W, Merke DP |title=Congenital adrenal hyperplasia |journal=Lancet |volume= |issue= |pages= |year=2017 |pmid=28576284 |doi=10.1016/S0140-6736(17)31431-9 |url=}}</ref><ref name="pmid24622419">{{cite journal |vauthors=Merke DP, Poppas DP |title=Management of adolescents with congenital adrenal hyperplasia |journal=Lancet Diabetes Endocrinol |volume=1 |issue=4 |pages=341–52 |year=2013 |pmid=24622419 |pmc=4163910 |doi=10.1016/S2213-8587(13)70138-4 |url=}}</ref><ref name="pmid3060026">{{cite journal| author=Hughes IA| title=Management of congenital adrenal hyperplasia. | journal=Arch Dis Child | year= 1988 | volume= 63 | issue= 11 | pages= 1399-404 | pmid=3060026 | doi= | pmc=1779155 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=3060026  }}</ref>
 
* Correct the effects of [[mineralocorticoid excess]]
* Prevent [[glucocorticoid]] deficiency
* Restore desired secondary [[sexual characteristics]]
 
*Treatment for 3 beta-hydroxysteroid dehydrogenase deficiency is by the use of [[glucocorticoids]] such as:
** Preferred regimen (1): [[Hydrocortisone]] 10 to 25 mg/m2 body surface area/day PO.
** Preferred regimen (2): [[Prednisolone]] 0.1 mg/kg/day PO.
** Preferred regimen (3): [[Dexamethasone]] up to 0.5 mg/day PO.
 
=== Surgery ===
=== Surgery ===
The reconstruction surgery for [[ambiguous genitalia]] in genetically male patients may be applied.  
The reconstruction surgery for [[ambiguous genitalia]] in genetically male patients may be applied.<ref name="pmid11344932">{{cite journal |vauthors=Schnitzer JJ, Donahoe PK |title=Surgical treatment of congenital adrenal hyperplasia |journal=Endocrinol. Metab. Clin. North Am. |volume=30 |issue=1 |pages=137–54 |year=2001 |pmid=11344932 |doi= |url=}}</ref>
 
==References==
==References==
{{Reflist|2}}
{{Reflist|2}}
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Latest revision as of 15:32, 6 November 2017


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

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Overview

3 beta-hydroxysteroid dehydrogenase deficiency is a rare disease due to congenital adrenal hyperplasia. It is characterized by impaired biosynthesis pathway of progestins, mineralocorticoids, glucocorticoids, and androgens. As a result of cortisol absence, corticotropin (ACTH) secretion increases and leads to produce 3-hydroxy-delta-5-steroids pregnenolone, 17-hydroxypregnenolone, and dehydroepiandrosterone (DHEA), also their sulfates. In peripheral tissues the conversion of DHEA sulfate (DHEAS) to testosterone, is responsible for virilization in females. 3 beta-hydroxysteroid dehydrogenase deficiency is caused by a mutation in the HSD3B2 gene. Symptoms of 3 beta-hydroxysteroid dehydrogenase deficiency may include symptoms of both cortisol and aldosterone deficiency such as feeding difficulties, vomiting, volume depletion, undervirilization in newborn males, and mild virilization and clitoromegaly in newborn female. Diagnosis for 3 beta-hydroxysteroid dehydrogenase deficiency is based on delta-5-17-hydroxypregnenolone high levels in serum laboratory tests. The mainstay of therapy for this disease is hydrocortisone and fludrocortisone acetate. The reconstruction surgery for ambiguous genitalia in genetically male patients may be applied.

Historical Perspective

3 beta-hydroxysteroid dehydrogenase deficiency was first time described in 1962, in a patient with ambiguous genitalia and salt wasting.[1]

Classification

There are two types of 3 beta-hydroxysteroid dehydrogenase deficiency:

  • Salt-wasting
  • Non-salt-wasting

Pathophysiology

The pathogenesis of 3 beta-hydroxysteroid dehydrogenase deficiency is characterized by impaired pathway of biosynthesis of progestins, mineralocorticoids, glucocorticoids, and androgens. As a result of cortisol absence, corticotropin (ACTH) secretion increases the production of 3-hydroxy-delta-5-steroids pregnenolone, 17-hydroxypregnenolone, and dehydroepiandrosterone (DHEA). ACTH secretion also increases the production of their sulfates. In peripheral tissues the conversion of DHEA sulfate (DHEAS) to testosterone is responsible for virilization in females.[1]

Causes

3 beta-hydroxysteroid dehydrogenase deficiency is caused by a mutation in the HSD3B2 gene.

Differentiating 3 Beta-hydroxysteroid Dehydrogenase Deficiency From Other Diseases

Differentials of ambiguous genitalia

3 beta-hydroxysteroid dehydrogenase deficiency must be differentiated from diseases that cause ambiguous genitalia:[2][3]

Disease name Steroid status Important clinical findings
Increased Decreased
3 beta-hydroxysteroid dehydrogenase deficiency
Classic type of 21-hydroxylase deficiency
11-β hydroxylase deficiency
17-α hydroxylase deficiency
Gestational hyperandrogenism

Differentials based on virilization and hirsutism

3 beta-hydroxysteroid dehydrogenase deficiency must be differentiated from diseases that cause virilization and hirsutism in female:[4][3][5]

Disease name Steroid status Other laboratory Important clinical findings
3 beta-hydroxysteroid dehydrogenase deficiency Increased:

Decreased:

Non-classic type of 21-hydroxylase deficiency Increased:
  • No symptoms in infancy and male
11-β hydroxylase deficiency Increased:

Decreased:

Polycystic ovary syndrome
Adrenal tumors
  • Variable levels depends on tumor type
  • Older age
  • Rapidly progressive symptoms
Ovarian virilizing tumor
  • Variable levels depends on tumor type
  • Older age
  • Rapidly progressive symptoms
Cushing's syndrome
Hyperprolactinemia

Epidemiology and Demographics

The prevalence of 3 beta-hydroxysteroid dehydrogenase deficiency is unknown. At least 60 affected individuals have been reported.[6]

Risk Factors

Common risk factors in the development of 3 beta-hydroxysteroid dehydrogenase deficiency is family history of this disease.

Diagnosis

Symptoms

Symptoms of 3 beta-hydroxysteroid dehydrogenase deficiency may include symptoms of both cortisol and aldosterone deficiency such as feeding difficulties, vomiting, volume depletion, muscle weakness, undervirilization in male newborns, and mild virilization and clitoromegaly in newborn female. [7]

Physical Examination

Physical examination may be remarkable for:

Laboratory Findings

Diagnosis for 3 beta-hydroxysteroid dehydrogenase deficiency is based on high levels of delta-5-17-hydroxypregnenolone. [8] Other laboratory findings incliude, hyponatremia and hyperkalemia.

Treatment

Medical Therapy

The mainstay of therapy for 3 beta-hydroxysteroid dehydrogenase deficiency is hydrocortisone and fludrocortisone acetate adiminstration. Gender-appropriate replacement of androgens or estrogens with progestins is necessary at the puberty time. The goal of therapy includes the following: [9][10][11]

  • Treatment for 3 beta-hydroxysteroid dehydrogenase deficiency is by the use of glucocorticoids such as:

Surgery

The reconstruction surgery for ambiguous genitalia in genetically male patients may be applied.[12]

References

  1. 1.0 1.1 BONGIOVANNI AM (1962). "The adrenogenital syndrome with deficiency of 3 beta-hydroxysteroid dehydrogenase". J. Clin. Invest. 41: 2086–92. doi:10.1172/JCI104666. PMC 291138. PMID 13968789.
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