scholarly journals The Effect of the Severity of Obstructive Sleep Apnea on Leukocyte Telomere Length, 25 Hydroxy Vitamin D, and Parathyroid Hormonal Concentrations in Asian Indians

2021 ◽  
Vol 12 ◽  
Author(s):  
Surya Prakash Bhatt ◽  
Randeep Guleria ◽  
Naval K. Vikram

Background: Obstructive sleep apnea (OSA) is a common disorder in which breathing repeatedly stops during sleep. Leukocyte telomere length (LTL) and OSA are linked with an increased risk of oxidative stress and inflammation. The possible link between LTL and OSA in Asian Indians has not been evaluated. Thus, the present study aims to compare the link between LTL and OSA in Asian Indians.Methods: In this study, 300 subjects (120 obese with OSA, 110 obese without OSA, and 70 non-obese without OSA) were included after overnight polysomnography and a fasting blood sample. Clinical, anthropometry, metabolic markers, insulin, 25-hydroxyvitamin D [25(OH) D], and parathyroid hormones (PTH) levels were investigated. LTL was investigated by a QPCR. Univariate and stepwise multivariate linear regression analyses adjusting for age, gender, BMI, and % body fat were conducted while treating LTL as a dependent variable in relation to AHI and other covariates.Results: Obese subjects with OSA had significantly decreased 25(OH)D and increased PTH levels. The mean telomere length (T/S) ratio was significantly shorter in patients with OSA. The adjusted correlation analysis showed that shortening of telomere length correlated with increasing age, apnea-hypopnea index (AHI), oxygen desaturation index, and RDI. Univariate analysis showed that LTL revealed a trend toward a negative correlation with a mean age (β + SE, −0.015 + 0.0006; p = 0.01) and positive correlation with AHI [β +slandered error (SE), 0.042 + 0.017; p = 0.008]. In the multiple regression analysis, LTL was positively associated with AHI (β + SE, 0.281 + 0.04; p = 0.001) after adjusting for age, sex, BMI, and % body fat. Even when adjusted for confounding factors, 25(OH)D, and PTH levels, LTL still was related to AHI (β + SE, 0.446 + 0.02; p = 0.05).Conclusion: Our study indicates the presence of an association between LTL and OSA and a significant impact of OSA severity and telomeres shortening in Asian Indians.

SLEEP ◽  
2019 ◽  
Vol 42 (7) ◽  
Author(s):  
Judith E Carroll ◽  
Michael R Irwin ◽  
Teresa E Seeman ◽  
Ana V Diez-Roux ◽  
Aric A Prather ◽  
...  

AbstractStudy ObjectivesSleep disturbances and sleep apnea are associated with increased vulnerability to age-related disease, altering molecular pathways affecting biological aging. Telomere length captures one component of biological aging. We evaluated whether objectively assessed sleep and sleep apnea relate to leukocyte telomere length (LTL) in the Multi-Ethnic Study of Atherosclerosis (MESA).MethodsMen and women aged 44–84 years (n = 672) from the MESA Stress and MESA Sleep studies underwent polysomnography and 7 day actigraphy (at Exam 5) and assessment of LTL (at baseline [Exam 1] and about 10 years later [Exam 5]).ResultsGeneral linear models adjusting for age, sex, race/ethnicity, BMI, physical activity, and smoking found that severe obstructive sleep apnea (OSA; apnea–hypopnea index > 30) was cross-sectionally associated with shorter LTL (p = 0.007). Modest associations of shorter LTL with less rapid eye movement sleep, more stage 1 sleep, wake after sleep onset >30 min, and long sleep duration were found, but these effects were diminished after adjusting for lifestyle and OSA. Exploratory analyses found that higher arousal index at Exam 5 was associated with greater LTL decline over the prior 10 years (p = 0.004).ConclusionsOSA was associated with shorter LTL. Individuals with high-arousal frequency had greater leukocyte telomere attrition over the prior decade. These findings suggest that sleep apnea and sleep fragmentation are associated with accelerated biological aging.


CHEST Journal ◽  
2010 ◽  
Vol 138 (1) ◽  
pp. 91-99 ◽  
Author(s):  
Jinkwan Kim ◽  
Seungkwan Lee ◽  
Rakesh Bhattacharjee ◽  
Abdelnaby Khalyfa ◽  
Leila Kheirandish-Gozal ◽  
...  

2020 ◽  
Vol 57 (7) ◽  
pp. 808-818
Author(s):  
Alfred Lee ◽  
Brian L. Chang ◽  
Cynthia Solot ◽  
Terrence B. Crowley ◽  
Vamsee Vemulapalli ◽  
...  

Objective: To determine pre- and postoperative prevalence of obstructive sleep apnea (OSA) in patients with 22q11.2 deletion syndrome (DS) undergoing wide posterior pharyngeal flap (PPF) surgery for velopharyngeal dysfunction (VPD). Design: Retrospective study using pre- and postoperative polysomnography (PSG) to determine prevalence of OSA. Medical records were reviewed for patients’ medical comorbidities. Parents were surveyed about snoring. Setting: Academic tertiary care pediatric hospital. Patients: Forty patients with laboratory confirmed 22q11.2DS followed over a 6-year period. Interventions: Pre- and postoperative PSG, speech evaluation, and parent surveys. Main Outcome Measure: Severity and prevalence of OSA, defined by obstructive apnea hypopnea index (OAHI), before and after PPF surgery to determine whether PPF is associated with increased risk of OSA. Results: Mean OAHI did not change significantly after PPF surgery (1.1/h vs 2.1/h, P = .330). Prevalence of clinically significant OSA (OAHI ≥ 5) was identical pre- and postoperatively (2 of 40), with both cases having severe-range OSA requiring positive airway pressure therapy. All other patients had mild-range OSA. Nasal resonance was graded as severe preoperatively in 85% of patients. None were graded as severe postoperatively. No single patient factor or parent-reported concern predicted risk of OSA (OAHI ≥ 1.5). Conclusions: Patients with 22q11.2DS are medically complex and are at increased risk of OSA at baseline. Wide PPF surgery for severe VPD does not significantly increase risk of OSA. Careful perioperative planning is essential to optimize both speech and sleep outcomes.


2018 ◽  
Vol 23 (3) ◽  
pp. 1397-1405 ◽  
Author(s):  
Ching-Chi Lin ◽  
Huey-Yuan Wang ◽  
Shwu-Fang Liaw ◽  
Chung-Hsin Chiu ◽  
Mei-Wei Lin

2019 ◽  
Vol 7 (1) ◽  
pp. e000737 ◽  
Author(s):  
Xiao Wang ◽  
Jingyao Fan ◽  
Yunhui Du ◽  
Changsheng Ma ◽  
Xinliang Ma ◽  
...  

ObjectiveThe prognostic significance of obstructive sleep apnea (OSA) in patients with acute coronary syndrome (ACS) according to diabetes mellitus (DM) status remains unclear. We aimed to elucidate the association of OSA with subsequent cardiovascular events in patients with ACS with or without DM.Research design and methodsIn this prospective cohort study, consecutive eligible patients with ACS underwent cardiorespiratory polygraphy between June 2015 and May 2017. OSA was defined as an Apnea Hypopnea Index ≥15 events/hour. The primary end point was major adverse cardiovascular and cerebrovascular events (MACCEs), including cardiovascular death, myocardial infarction, stroke, ischemia-driven revascularization, or hospitalization for unstable angina or heart failure.ResultsAmong 804 patients, 248 (30.8%) had DM and 403 (50.1%) had OSA. OSA was associated with 2.5 times the risk of 1 year MACCE in patients with DM (22.3% vs 7.1% in the non-OSA group; adjusted HR (HR)=2.49, 95% CI 1.16 to 5.35, p=0.019), but not in patients without DM (8.5% vs 7.7% in the non-OSA group, adjusted HR=0.94, 95% CI 0.51 to 1.75, p=0.85). Patients with DM without OSA had a similar 1 year MACCE rate as patients without DM. The increased risk of events was predominately isolated to patients with OSA with baseline glucose or hemoglobin A1c levels above the median. Combined OSA and longer hypoxia duration (time with arterial oxygen saturation <90%>22 min) further increased the MACCE rate to 31.0% in patients with DM.ConclusionsOSA was associated with increased risk of 1 year MACCE following ACS in patients with DM, but not in non-DM patients. Further trials exploring the efficacy of OSA treatment in high-risk patients with ACS and DM are warranted.


Author(s):  
Abdulmohsen Alterki ◽  
Shibu Joseph ◽  
Thangavel Alphonse Thanaraj ◽  
Irina Al-Khairi ◽  
Preethi Cherian ◽  
...  

Background: Obstructive sleep apnea (OSA) is caused by partial or complete obstruction of the upper airways. Corrective surgeries aim at removing obstructions in the nasopharynx, oropharynx, and hypopharynx. OSA is associated with increased risk of various metabolic diseases. Our objective was to evaluate the effect of surgery on the plasma metabolome. Methods: This study included 39 OSA patients who underwent Multilevel Sleep Surgery (MLS). Clinical and anthropometric measures were taken at baseline and 5 months after surgery. Results: The mean Apnea Hypopnea Index (AHI) significantly dropped from 22.0 &plusmn; 18.5 events/hour to 8.97 &plusmn; 9.57 events/hour (p-Value &lt;0.001). The Epworth&rsquo;s sleepiness Score (ESS) dropped from 12.8 &plusmn; 6.23 to 2.95 &plusmn; 2.40 (p-Value &lt;0.001) indicating success of the surgery in treating OSA. Plasma levels of metabolites, phosphocholines (PC) PC.41.5, PC.42.3, ceremide (Cer) Cer.44.0, and triglyceride (TG) TG.53.6, TG.55.6 and TG.56.8 were decreased (p-Value&lt;0.05) whereas lysophosphatidylcholines (LPC) 20.0 and PC.39.3 were increased (p-Value&lt;0.05) after surgery. Conclusion: This study highlights the success of MLS in treating OSA. Treatment of OSA resulted in improvement in metabolic status that was characterized by decreased TG, PCs and Cer metabolites post-surgery indicating that the success of the surgery positively impacted the metabolic status of these patients.


2016 ◽  
Vol 36 (suppl_1) ◽  
Author(s):  
Phillip Camp ◽  
Abinash Achrekar ◽  
Umar Malik ◽  
Warren Laskey

Introduction: It is well known that obstructive sleep apnea (OSA) prevalence increases as body mass index (BMI) increases. Lesser known is patent foramen ovale (PFO) is found in 12 to 35 percent of adults. Patients with OSA experience nocturnal apnea which result in hypoxemia, elevation of right atrial pressure, and an increase in right to left shunting and a theoretical increased risk of stroke. A few studies have suggested an association between the severity of OSA and a PFO. As such, OSA diagnosis and therapy may be tailored to address right-to-left shunting in these patients. If the prevalence of PFO in OSA patients is increased, it may be appropriate to include transthoracic echocardiography (TTE) testing as a component of routine evaluation of patients with OSA. Hypothesis: We hypothesize that patients with hypoxemia related to OSA are more likely to have a PFO with right-to-left shunting than those with less dramatic hypoxemia. We hope to determine the prevalence and clinical relevance of intra-cardiac shunting in patients with OSA by prospectively analyzing and correlating polysomnography and TTE findings. Methods: 80 patients with OSA were referred for TTE by the UNM Sleep Center. All patients underwent saline contrast TTE in the UNM echo lab. The prevalence of PFO in the general UNM echo population was calculated over the last year for comparison. Results: Of 80 patients with varying degrees of OSA, 12.5% had right to left shunting. PFO was not statistically associated with DI (Desaturation Index), nor any AHI (Apnea Hypopnea Index). The only statistically significant association was between OSA and BMI (p=0.013). BMI associated with DI and AHI was statistically significant (p=0.003 and p=0.005, respectively). Over the last year, 216 PFO’s were found from 1858 echo studies with contrast injection performed at UNM with a prevalence rate of 11.6%. Conclusions: In contrast to previous studies, there was no association between OSA of any severity and PFO in our study population. There was a statistically significant association between BMI and OSA, which is well established. Our study prevalence was found to be similar to the UNM general echo population as well, indicating that OSA patients within our study group were not as likely to have an associated PFO.


2017 ◽  
Vol 21 (3) ◽  
pp. 751-757 ◽  
Author(s):  
Pia Riestra ◽  
Samson Y Gebreab ◽  
Ruihua Xu ◽  
Rumana J Khan ◽  
Rakale Quarels ◽  
...  

Metabolites ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 358
Author(s):  
Abdulmohsen Alterki ◽  
Shibu Joseph ◽  
Thangavel Alphonse Thanaraj ◽  
Irina Al-Khairi ◽  
Preethi Cherian ◽  
...  

Background: Obstructive sleep apnea (OSA) is caused by partial or complete obstruction of the upper airways. Corrective surgeries aim at removing obstructions in the nasopharynx, oropharynx, and hypopharynx. OSA is associated with an increased risk of various metabolic diseases. Our objective was to evaluate the effect of surgery on the plasma metabolome. Methods: This study included 39 OSA patients who underwent Multilevel Sleep Surgery (MLS). Clinical and anthropometric measures were taken at baseline and five months after surgery. Results: The mean Apnea-Hypopnea Index (AHI) significantly dropped from 22.0 ± 18.5 events/hour to 8.97 ± 9.57 events/hour (p-Value < 0.001). Epworth’s sleepiness Score (ESS) dropped from 12.8 ± 6.23 to 2.95 ± 2.40 (p-Value < 0.001), indicating the success of the surgery in treating OSA. Plasma levels of metabolites, phosphocholines (PC) PC.41.5, PC.42.3, ceremide (Cer) Cer.44.0, and triglyceride (TG) TG.53.6, TG.55.6 and TG.56.8 were decreased (p-Value < 0.05), whereas lysophosphatidylcholines (LPC) 20.0 and PC.39.3 were increased (p-Value < 0.05) after surgery. Conclusion: This study highlights the success of MLS in treating OSA. Treatment of OSA resulted in an improvement of the metabolic status that was characterized by decreased TG, PCs, and Cer metabolites after surgery, indicating that the success of the surgery positively impacted the metabolic status of these patients.


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