Abstract:
UNLABELLED:Aldosterone synthase (P450c11AS) deficiency is a rare autosomal recessive disorder, presenting with severe salt-losing in early infancy. It is caused by inactivating mutations of the CYP11B2 gene. Here, we describe three unrelated Asian patients who have clinical and hormonal features compatible with aldosterone synthase deficiency and identify their CYP11B2 mutations. Patient 1 was a Thai female infant. Patient 2 was an Indian boy, and patient 3 was a Thai male infant. All subjects presented at the age of 1-2 months with diarrhea, failure to thrive, and severe dehydration. Their plasma electrolytes showed hyponatremia, hyperkalemia, and acidosis. All patients had normal cortisol response and had elevated plasma renin activity with low aldosterone levels. The entire coding regions of the CYP11B2 gene were amplified by polymerase chain reaction and sequenced. Patient 1 was homozygous for a previously described mutation, p.T318M. Patient 2 was homozygous for a novel c.666delC mutation inherited from both parents resulting in p.223F>Sfsx295. No CYP11B2 mutation was detected in patient 3. CONCLUSIONS:We report the first CYP11B2 defects in Southeast Asian families responsible for aldosterone synthase deficiency and identified a novel CYP11B2 mutation. However, the affected gene(s) responsible for primary hypoaldosteronism other than CYP11B2 remain to be determined.
journal_name
Eur J Pediatrjournal_title
European journal of pediatricsauthors
Klomchan T,Supornsilchai V,Wacharasindhu S,Shotelersuk V,Sahakitrungruang Tdoi
10.1007/s00431-012-1792-7subject
Has Abstractpub_date
2012-10-01 00:00:00pages
1559-62issue
10eissn
0340-6199issn
1432-1076journal_volume
171pub_type
杂志文章abstract::The United Nations Convention of Children's Rights (UNCRC) introduced in 1989 has generated a global movement for the protection of children's rights and has brought about a paradigm change in how children are perceived. Pediatric healthcare professionals are interacting with children and therefore with children's rig...
journal_title:European journal of pediatrics
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abstract:UNLABELLED:Infection is a well recognised cause of spontaneous early preterm labour. Preterm labour of infective aetiology is refractory to the use of tocolytic agents and affected women have a higher risk of subsequent chorio-amnionitis and neonatal infection. Antibiotics used prophylactically for the prevention of pr...
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journal_title:European journal of pediatrics
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journal_title:European journal of pediatrics
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journal_title:European journal of pediatrics
pub_type: 杂志文章
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journal_title:European journal of pediatrics
pub_type: 杂志文章
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journal_title:European journal of pediatrics
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journal_title:European journal of pediatrics
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journal_title:European journal of pediatrics
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journal_title:European journal of pediatrics
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journal_title:European journal of pediatrics
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journal_title:European journal of pediatrics
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journal_title:European journal of pediatrics
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