Endocrine Abstracts

Microsomal glucose-6-phosphatase (G6Pase) and glucose-6-phosphate transporter (G6PT) are key enzymes in regulation of blood glucose concentration. Deficiency of G6Pase gives rise to glycogen storage disease type Ia (GSDIa) whilst mutations in G6PT cause GSDIb. Both are characterized by growth retardation, hypoglycemia, hepatomegaly, nephromegaly. G6Pase shares its substrate (G6P) with hexose-6-phosphate-dehydrogenase (H6PDH), an ER enzyme functionally coupled with, and which c...

Non-alcoholic fatty liver disease (NAFLD) is the hepatic manifestation of the metabolic syndrome. The role of glucocorticoids (GC) in its pathogenesis, is highlighted in patients with GC excess, Cushing’s syndrome, who develop central adiposity, insulin resistance and in 20% of cases, NAFLD. Although circulating cortisol levels are normal in patients with NAFLD, hepatic cortisol availability is controlled by enzymes that regenerate cortisol from inactive cortisone (11&#94...