Cholate-CoA ligase （,EEL） and bile acid-CoA： amino acid N-acyltransferase （BAAT） sequentially mediate bile-acid amidation. Defects can cause intrahepatic cholestasis. Distinction has required gene sequencing. We ...Cholate-CoA ligase （,EEL） and bile acid-CoA： amino acid N-acyltransferase （BAAT） sequentially mediate bile-acid amidation. Defects can cause intrahepatic cholestasis. Distinction has required gene sequencing. We assessed potential clinical utility of immunostaining of liver for CCL and BAAT. Using commercially available antibodies against BAAT and CCL, we immunostained liver from an infant with jaundice, deficiency of amidated bile acids, and transcription-terminating mutation in BAAT. CCL was normally expressed. BAAT expression was not de- tected. Immunostaining may facilitate diagnosis in bile- acid amidation defects.展开更多
基金Supported by Great Ormond Street Hospital Children’s Charity, to Clayton PTNational Institutes of HealthGrant R01 DK58214, to Bull LN
文摘Cholate-CoA ligase （,EEL） and bile acid-CoA： amino acid N-acyltransferase （BAAT） sequentially mediate bile-acid amidation. Defects can cause intrahepatic cholestasis. Distinction has required gene sequencing. We assessed potential clinical utility of immunostaining of liver for CCL and BAAT. Using commercially available antibodies against BAAT and CCL, we immunostained liver from an infant with jaundice, deficiency of amidated bile acids, and transcription-terminating mutation in BAAT. CCL was normally expressed. BAAT expression was not de- tected. Immunostaining may facilitate diagnosis in bile- acid amidation defects.
