Frequency of Human Leukocyte Antigens, Plasminogen Activator Inhibitor-1 and Methylenetetrahydrofolate Reductase Gene Polymorphisms in Obstructive Sleep Apnea-Hypopnea Syndrome with or without Pulmonary Artery Hypertension

¹Department of Rehabilitation, Unit Care Respiratory, ASL/Lecce, Italy

²Laboratory of Human Anatomy and Neuroscience, Department of Biological and Environmental Sciences and Technologies, University of Salento, Italy

³Laboratory of Genetic, “Vito Fazzi”, ASL Lecce, Italy

⁴Division of Cardiovascular disease, City of Lecce Hospital, Lecce, Italy

⁵ISBEM Research Institute, Medical School of University of Pisa, Pisa, Italy