OBSTRUCTIVE SLEEP APNEA PREDISPOSES TO NONALCOHOLIC FATTY LIVER DISEASE in PATIENTS WITH POLYCYSTIC OVARY SYNDROME

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Data
2014-03-01
Autores
Tock, Luciana [UNIFESP]
Carneiro, Glaucia [UNIFESP]
Togeiro, Sonia Maria [UNIFESP]
Hachul, Helena [UNIFESP]
Pereira, Andrea Z. [UNIFESP]
Tufik, Sergio [UNIFESP]
Zanella, Maria Teresa [UNIFESP]
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Objective: Some studies have shown a higher prevalence of nonalcoholic fatty liver disease (NAFLD) and obstructive sleep apnea (OSA) in patients with polycystic ovary syndrome (PCOS). the objective of this study was to assess NAFLD in PCOS women with and without OSA. A possible role of high serum androgen levels in the development of OSA in PCOS women was also investigated.Methods: Biochemical, hormonal, and polysomnography parameters were determined in 38 premenopausal PCOS patients. NAFLD was evaluated by ultrasound. Testosterone was measured by an immunoassay.Results: Serum androgen levels and the prevalence of NAFLD (83.3% vs. 26.9%; P<.001) were higher in patients with OSA than those without OSA. the mean apnea-hypopnea index (AHI) was higher in patients with NAFLD than in those without NAFLD (16.87 events [ev]/h vs. 1.57 ev/h; P<.002). On multivariate logistic regression, where body mass index >= 30 kg/m(2), homeostasis model assessment for insulin resistance >= 2.7, and OSA (AHI >= 5 ev/h) were independent variables, only OSA was an independent predictor of NAFLD (odds ratio [OR], 7.63; P = .044). Free testosterone levels >= 1.07 ng/dL were also independently associated with OSA (OR, 8.18; P = .023).Conclusion: in PCOS women, the occurrence of OSA strongly predisposes them to development of NAFLD and a worse metabolic profile; hence, treatment of OSA might be beneficial for NAFLD.
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Endocrine Practice. Jacksonville: Amer Assoc Clinical Endocrinologists, v. 20, n. 3, p. 244-251, 2014.
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