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Endocrine Abstracts (2016) 41 EP891 | DOI: 10.1530/endoabs.41.EP891

ECE2016 Eposter Presentations Pituitary - Clinical (83 abstracts)

Non-alcoholic fatty liver disease in patients with biochemically cured Cushing’s disease and non-functioning pituitary adenomas: role of adrenal insufficiency and growth hormone deficiency

Matthias K Auer , Mareike R Stieg & Günter K Stalla

Max Planck Institute of Psychiatry, 80804 Munich, Germany.

Objective: Nonalcoholic fatty liver disease (NAFLD) is a hallmark of the metabolic syndrome and has been shown to be an independent predictor of cardiovascular mortality. Although glucocorticoids and growth hormone are known to be implicated in its pathophysiology, it has only rarely been investigated in the context of patients with pituitary insufficiency or former cortisol excess.

Design: Case-control study, including patients with biochemically controlled Cushing’s disease (CD) (N=33) and non-functioning pituitary adenomas (NFPA) (N=79).

Methods: NAFLD estimated by calculating the fatty liver index (FLI) including BMI, waist circumference, GGT and triglyceride levels.

Results: Although there was no difference in FLI between patients with NFPA and CD, we identified average daily hydrocortisone (HC) intake in those with adrenal insufficiency to be an independent predictor of FLI (β=1.124; P=0.017, even after adjusting from BMI and waist circumference. In line, those with a FLI > 60 were also taking in average significantly more HC per day than those with a score <60 (21.05 mg±5.9 vs. 17.9 mg ± 4.4; P=0.01). FLI was also the best independent predictor for HbA1c and fasting glucose levels (both P=0.001). Growth hormone deficiency and replacement therapy were not associated with FLI in either group.

Conclusion: While HC dosage affects FLI as an estimate of NFLD in patients with CD and NFPA, the benefit of GH replacement still needs to be determined. In contrast to reports in CD patients with active disease, NAFLD in those with biochemical control was not different from NFPA patients.

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