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2.
Ann Clin Biochem ; 47(Pt 3): 271-4, 2010 May.
Article in English | MEDLINE | ID: mdl-20400497

ABSTRACT

We present the case of an eight-year-old boy with advanced isosexual precocity associated with an elevated serum total-beta human chorionic gonadotrophin (HCG) and markedly elevated serum total testosterone. Radiological investigation discovered a lesion in the left thalamus and no peripheral tumour. Serum:cerebrospinal fluid (CSF) HCG ratio was approximately 1:1, consistent with a central nervous system source of HCG, with thalamic germinoma strongly suspected. Consent was not obtained for biopsy of the lesion. The patient underwent multiagent chemotherapy with return of serum HCG to normal. We discuss mechanisms of HCG-mediated sexual precocity in both boys and girls and the importance of CSF HCG.


Subject(s)
Central Nervous System/metabolism , Chorionic Gonadotropin/metabolism , Gonadotropins/metabolism , Puberty, Precocious/diagnosis , Puberty, Precocious/etiology , Child , Humans , Male , Puberty, Precocious/metabolism
3.
J Inherit Metab Dis ; 19(3): 296-300, 1996.
Article in English | MEDLINE | ID: mdl-8803771

ABSTRACT

Succinyl-CoA:3-ketoacid CoA-transferase deficiency leads to a severe ketoacidosis presenting in infancy. We describe two siblings of African ancestry who presented with repeated episodes of ketoacidosis. Both had a positive test for salicylate in the absence of salicylate ingestion. Analysis of urine for organic acids revealed the presence of acetoacetate and 3-hydroxybutyrate. Succinyl-CoA:3-ketoacid CoA-transferase activities in cultured fibroblasts were 11% and 18% of control values.


Subject(s)
Acidosis/genetics , Coenzyme A-Transferases/deficiency , Ketone Bodies/metabolism , Cells, Cultured , Child , Child, Preschool , Female , Humans , Male
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