title: High levels of inflammation and insulin resistance in obstructive sleep apnea patients with hypertension.
abstract: Hypertension induced by obstructive sleep apnea (OSA) may be multifactorial in origin, and systemic inflammation is one of the major factors. However, OSA patients do not always have the identical probability with hypertension even in patients with the same history and degree of OSA. The aim of this study was to compare the levels of inflammation and insulin resistance in two groups of patients who had the same degree as well as the same long history of OSA, but with/without hypertension. OSA patients (Apnea Hyponea Index, AHI ≥ 40/h, n = 70) were examined by polysomnography and blood analysis for the measurements of fasting plasma glucose, serum insulin (FINS), high-sensitivity C-reactive protein (CRP), peptide C,TNF-α, IL-6, and IL-10. Patients with hypertension (n = 40) had higher level of LDL-C and lower HDL-C levels than patients without hypertension. Almost half (16/40) of OSA patients with hypertension had family history of hypertension. Moreover in OSA patients with hypertension, the levels of TNF-α, IL-6, and CRP were higher, but IL-10 was lower than those without hypertension. FINS, peptide C, HOMA-IR, and HOMA-islet were also higher in OSA patients with hypertension. OSA patients with hypertension have higher level of inflammation and insulin resistance. Systemic inflammation and insulin resistance are both important factors for the development of hypertension in OSA patients.
authors.affiliation: Department of Geriatric Respiratory Disease, General Hospital of People's Liberation Army, No. 28 Fu Xing Road, Beijing, People's Republic of China, 100853. qianxs@yahoo.com
authors.forename: Xiaoshun
authors.initials: X
authors.lastname: Qian
authors.forename: Tong
authors.initials: T
authors.lastname: Yin
authors.forename: Tianzhi
authors.initials: T
authors.lastname: Li
authors.forename: Chunyan
authors.initials: C
authors.lastname: Kang
authors.forename: Ruibiao
authors.initials: R
authors.lastname: Guo
authors.forename: Baojun
authors.initials: B
authors.lastname: Sun
authors.forename: Changting
authors.initials: C
authors.lastname: Liu
mesh_terms: D001786:Blood Glucose / Q000032:analysis; D015992:Body Mass Index; D002097:C-Reactive Protein / Q000032:analysis; D002681:China; D008076:Cholesterol, HDL / Q000097:blood; D008078:Cholesterol, LDL / Q000097:blood; D006801:Humans; D006973:Hypertension / Q000097:blood / Q000150:complications* / Q000378:metabolism; D007249:Inflammation / Q000097:blood / Q000150:complications* / Q000378:metabolism; D007328:Insulin / Q000097:blood; D007333:Insulin Resistance; D016753:Interleukin-10 / Q000097:blood; D015850:Interleukin-6 / Q000097:blood; D008297:Male; D010455:Peptides / Q000097:blood; D020181:Sleep Apnea, Obstructive / Q000097:blood / Q000150:complications* / Q000378:metabolism; D014409:Tumor Necrosis Factor-alpha / Q000097:blood
chemical_list: D001786:Blood Glucose; D008076:Cholesterol, HDL; D008078:Cholesterol, LDL; D007328:Insulin; D015850:Interleukin-6; D010455:Peptides; D014409:Tumor Necrosis Factor-alpha; C050632:polypeptide C; D016753:Interleukin-10; D002097:C-Reactive Protein