BioMed Research International / 2018 / Article / Fig 1

Research Article

Matrix Metalloproteinase-9 Is a Predictive Factor for Systematic Hypertension and Heart Dysfunction in Patients with Obstructive Sleep Apnea Syndrome

Figure 1

Correlations between MMP-9 and sleep parameters in OSAS patients. (a) General view of polysomnographic parameters according to OSAS severity (Student’s t-test). The serum MMP-9 level was positively correlated with AHI (b) and ODI (c). Although no significant correlation was observed between MMP-9 and ESS (d), higher serum MMP-9 level (e) was associated with higher MAP according to Spearman correlation test. AHI: Apnea Hypopnea Index; ODI: Oxygen Desaturation Index; ESS: Epworth Sleepiness Scale; SpO2: blood oxygen saturation; L-SpO2: lowest SpO2 during sleep; M-SpO2: mean SpO2 during sleep; MAP: mean arterial pressure. compared with mild group.
(a)
(b)
(c)
(d)
(e)

We are committed to sharing findings related to COVID-19 as quickly and safely as possible. Any author submitting a COVID-19 paper should notify us at help@hindawi.com to ensure their research is fast-tracked and made available on a preprint server as soon as possible. We will be providing unlimited waivers of publication charges for accepted articles related to COVID-19. Sign up here as a reviewer to help fast-track new submissions.