Impaired ketogenesis in fructose-1,6-bisphosphatase deficiency: a pitfall in the investigation of hypoglycaemia.
Intermediary metabolite concentrations were measured in blood during fasting in two patients with fructose-1,6-bisphosphatase deficiency. Hypoglycaemia was accompanied by markedly raised levels of plasma free fatty acids, without the expected degree of ketosis. This suggests that there is secondary impairment of ketogenesis in this condition, and could lead to diagnostic confusion.
Morris
A A
AA
Department of Child Health, Medical School, University of Newcastle upon Tyne, UK.
Deshphande
S
S
Ward-Platt
M P
MP
Whitfield
A E
AE
Aynsley-Green
A
A
Leonard
J V
JV
Pourfarzam
M
M
Bartlett
K
K
D020155:3-Hydroxybutyric Acid; D005230:Fatty Acids, Nonesterified / Q000097:blood; D005260:Female; D015319:Fructose-1,6-Diphosphatase Deficiency / Q000235:genetics* / Q000378:metabolism*; D005943:Gluconeogenesis / Q000235:genetics; D006801:Humans; D006885:Hydroxybutyrates / Q000097:blood; D007003:Hypoglycemia / Q000175:diagnosis / Q000235:genetics* / Q000378:metabolism*; D007223:Infant; D007231:Infant, Newborn; D007662:Ketosis / Q000175:diagnosis / Q000235:genetics* / Q000378:metabolism*
D005230:Fatty Acids, Nonesterified; D006885:Hydroxybutyrates; D020155:3-Hydroxybutyric Acid