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Cho J, Jo S. Association of obstructive sleep apnea with risk of lung cancer: a nationwide cohort study in Korea. Sci Rep 2024; 14:12394. [PMID: 38811831 PMCID: PMC11137051 DOI: 10.1038/s41598-024-63238-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 05/27/2024] [Indexed: 05/31/2024] Open
Abstract
Current knowledge regarding the relationship between obstructive sleep apnea (OSA) and the risk of lung cancer is limited. This study aimed to evaluate associations between OSA and the incidence of lung cancer based on the Korean National Health Information Database. The study outcome was the incidence of newly diagnosed lung cancer, and a Cox proportional hazards model was used for analysis. A total of 181,070 adult patients newly diagnosed with OSA between 2011 and 2018 were matched with those without OSA by up to 1:5 propensity score matching based on age and sex. During follow-up over (mean ± standard deviation) 9.1 ± 2.0 years, 2614 incident cases of lung cancer were identified. The incidence rate was 39.51 per 100,000 person-years in the OSA group, and 24.93 per 100,000 person-years in the control group. After adjusting for income and the presence of comorbidities, the association remained significant (hazard ratio [HR] 1.95, 95% confidence interval [CI] 1.74-2.18, p-value < 0.001). The adjusted HR for incident lung cancer was 2.14 (95% CI 1.69-2.70) in female patients with OSA, and 1.90 (95% CI 1.67-2.16) in male patients with OSA. The risk of incident lung cancer increased with age, with a HR of 2.99 (95% CI 2.46-3.64) in those aged ≥ 65 years. This nationwide study showed an independent association between OSA and an increased risk of lung cancer in the Korean population.
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Affiliation(s)
- Jaeyoung Cho
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea.
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea.
| | - Soomin Jo
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Dongguk University Ilsan Hospital, Goyang, Republic of Korea
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Cao L, Zhou C, Zhang R, Zhou S, Sun X, Yan J. Relationship between obstructive sleep apnoea syndrome and gastrointestinal diseases: a systematic review and Meta-analysis. NPJ Prim Care Respir Med 2024; 34:12. [PMID: 38796510 PMCID: PMC11128016 DOI: 10.1038/s41533-024-00373-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 05/08/2024] [Indexed: 05/28/2024] Open
Abstract
Studies exploring the association between obstructive sleep apnoea syndrome (OSA) and gastrointestinal diseases (GID) are important for enhancing clinical outcomes. This study aimed to systematically assess the association between these two diseases. Adhering to PRISMA guidelines, a comprehensive literature search was conducted across databases including PubMed, Web of Science, Willey Library, Cochrane Library and Scopus. This search focused on English literature published up to January 2024. Literature screening, quality assessment (using the NOS scale) and data extraction were performed by two independent researchers. Statistical analyses were performed using the meta-package of the R.4.2.2 software. An initial screening of 2178 papers was conducted and 11 studies were included. Meta-analysis results showed a significant association between OSA and GID (p < 0.01). Subgroup analyses further indicated a stronger association between OSA and GID in Asian populations compared to Europe and the United States. In addition, both benign and malignant GID were significantly associated with OSA, with a pronounced association for malignant GID than for benign GID. The results of publication bias analysis revealed no significant bias (Begg's test p = 0.45, Egger's test p = 0.60). This study uncovers a notable association between OSA and GID, especially in Asian populations, suggesting that clinicians should consider the potential connection between these two diseases during diagnosis and treatment. However, due to the heterogeneity and limitations of the study, these conclusions need to be further validated through more comprehensive research.
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Affiliation(s)
- Liubin Cao
- Department of Forensic Medicine, Nantong University Medical College, Nantong, China
| | - Chengpei Zhou
- Department of Pathogenic Biology, Nantong University Medical College, Nantong, China
| | - Rupei Zhang
- Department of Forensic Medicine, Nantong University Medical College, Nantong, China
| | - Shan Zhou
- Department of Forensic Medicine, Nantong University Medical College, Nantong, China
| | - Xiaolei Sun
- Department of Pathogenic Biology, Nantong University Medical College, Nantong, China
| | - Jun Yan
- Department of Forensic Medicine, Nantong University Medical College, Nantong, China.
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Yuan F, Hu Y, Xu F, Feng X. A review of obstructive sleep apnea and lung cancer: epidemiology, pathogenesis, and therapeutic options. Front Immunol 2024; 15:1374236. [PMID: 38605948 PMCID: PMC11007033 DOI: 10.3389/fimmu.2024.1374236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Accepted: 03/12/2024] [Indexed: 04/13/2024] Open
Abstract
Despite undeniable advances in modern medicine, lung cancer still has high morbidity and mortality rates. Lung cancer is preventable and treatable, and it is important to identify new risk factors for lung cancer, especially those that can be treated or reversed. Obstructive sleep apnea (OSA) is a very common sleep-breathing disorder that is grossly underestimated in clinical practice. It can cause, exacerbate, and worsen adverse outcomes, including death and various diseases, but its relationship with lung cancer is unclear. A possible causal relationship between OSA and the onset and progression of lung cancer has been established biologically. The pathophysiological processes associated with OSA, such as sleep fragmentation, intermittent hypoxia, and increased sympathetic nervous excitation, may affect normal neuroendocrine regulation, impair immune function (especially innate and cellular immunity), and ultimately contribute to the occurrence of lung cancer, accelerate progression, and induce treatment resistance. OSA may be a contributor to but a preventable cause of the progression of lung cancer. However, whether this effect exists independently of other risk factors is unclear. Therefore, by reviewing the literature on the epidemiology, pathogenesis, and treatment of lung cancer and OSA, we hope to understand the relationships between the two and promote the interdisciplinary exchange of ideas between basic medicine, clinical medicine, respiratory medicine, sleep medicine, and oncology.
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Affiliation(s)
- Fang Yuan
- Department of Respiratory, The First Hospital of Jiujiang City, Jiujiang, China
| | - Yanxia Hu
- Department of Respiratory, The First Hospital of Jiujiang City, Jiujiang, China
| | - Fei Xu
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Xujun Feng
- Department of Respiratory, The First Hospital of Jiujiang City, Jiujiang, China
- Department of Respiratory and Critical Care Medicine, Sleep Medicine Center, Mental Health Center, West China Hospital, Sichuan University, Chengdu, China
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Chen LD, Lin L, Chen JZ, Song Y, Zhang WL, Li HY, Luo JM, Zhang XB. Identification of key genes in chronic intermittent hypoxia-induced lung cancer progression based on transcriptome sequencing. BMC Cancer 2024; 24:41. [PMID: 38183079 PMCID: PMC10770984 DOI: 10.1186/s12885-023-11785-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 12/21/2023] [Indexed: 01/07/2024] Open
Abstract
BACKGROUND Obstructive sleep apnea (OSA) is associated with increased risk of lung cancer mortality. Nevertheless, little is known about the underlying molecular mechanisms. This research aimed to investigate differentially expressed genes (DEGs) and explore their function in Lewis lung carcinoma (LLC)-bearing mice exposed to chronic intermittent hypoxia (CIH) by transcriptome sequencing. METHODS Lung cancer tissues in LLC-bearing mice exposed to CIH or normoxia were subjected for transcriptome sequencing to examine DEGs. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway analyses were employed to explore the function of DEGs. To evaluate the prognostic value of DEGs, the Kaplan-Meier survival analysis in combination with Cox proportional hazard model were applied based on The Cancer Genome Atlas. RESULTS A total of 388 genes with 207 up-regulated and 181 down-regulated genes were differentially expressed between the CIH and normoxia control groups. Bioinformatics analysis revealed that the DEGs were related to various signaling pathways such as chemokine signaling pathway, IL-17 signaling pathway, TGF-β signaling pathway, transcriptional misregulation in cancer, natural killer cell mediated cytotoxicity, PPAR signaling pathway. In addition, the DEGs including APOL1, ETFB, KLK8, PPP1R3G, PRL, SPTA1, PLA2G3, PCP4L1, NINJ2, MIR186, and KLRG1 were proven to be significantly correlated with poorer overall survival in lung adenocarcinoma. CONCLUSIONS CIH caused a significant change of gene expression profiling in LLC-bearing mice. The DEGs were found to be involved in various physiological and pathological processes and correlated with poorer prognosis in lung cancer.
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Affiliation(s)
- Li-Da Chen
- Department of Respiratory and Critical Care Medicine, Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou, Fujian Province, China
| | - Li Lin
- Department of Respiratory and Critical Care Medicine, Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou, Fujian Province, China
| | - Ji-Zhi Chen
- Department of Emergency Medicine, Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou, Fujian Province, China
| | - Yang Song
- Ningde Food and Drug Inspection Testing Center, Ningde, Fujian Province, China
| | - Wei-Liang Zhang
- Department of Respiratory and Critical Care Medicine, Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou, Fujian Province, China
| | - Huang-Yu Li
- Department of Respiratory and Critical Care Medicine, Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou, Fujian Province, China
| | - Jia-Min Luo
- Department of Respiratory and Critical Care Medicine, Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou, Fujian Province, China
| | - Xiao-Bin Zhang
- The School of Clinical Medicine, Fujian Medical University, No. 1, Xuefu North Road, University New District, Fuzhou, Fujian Province, 350122, People's Republic of China.
- Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Xiamen University, Xiamen, Fujian Province, China.
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Gueye-Ndiaye S, Williamson AA, Redline S. Disparities in Sleep-Disordered Breathing: Upstream Risk Factors, Mechanisms, and Implications. Clin Chest Med 2023; 44:585-603. [PMID: 37517837 PMCID: PMC10513750 DOI: 10.1016/j.ccm.2023.03.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/01/2023]
Abstract
Sleep-disordered breathing (SDB) refers to a spectrum of disorders ranging from habitual snoring without frank episodes of obstructed breathing or desaturation during sleep to obstructive sleep apnea, where apneas and hypopneas repetitively occur with resultant intermittent hypoxia, arousal, and sleep disruption. Disparities in SDB reflect its overall high prevalence in children and adults from racially and ethnically minoritized or low socioeconomic status backgrounds coupled with high rates of underdiagnosis and suboptimal treatment.
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Affiliation(s)
- Seyni Gueye-Ndiaye
- Brigham and Women's Hospital and Harvard Medical School, 221 Longwood Avenue, Boston, MA 02115, USA
| | - Ariel A Williamson
- Children's Hospital of Philadelphia, 2716 South Street Boulevard, Philadelphia, PA 19104, USA; Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Susan Redline
- Brigham and Women's Hospital and Harvard Medical School, 221 Longwood Avenue, Boston, MA 02115, USA.
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The association between obstructive sleep apnea and lung nodule, carcinoembryonic antigen. Eur Arch Otorhinolaryngol 2023; 280:2025-2032. [PMID: 36481978 DOI: 10.1007/s00405-022-07776-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 12/01/2022] [Indexed: 12/13/2022]
Abstract
PURPOSE The association between obstructive sleep apnea (OSA) and cancer risks gaining more and more attention. Data on the association between OSA and lung cancer risk are limited. This study is to investigate whether a link exists between low-dose computed tomography (LDCT) scanning of the chest findings, carcinoembryonic antigen (CEA) and OSA in patients suspected of OSA. METHODS The cross-sectional study included patients aged 18 years or older who underwent continuous nocturnal polysomnography at our sleep center between February 2019 and November 2020. All subjects underwent chest LDCT and CEA. Patients with an apnea-hypopnea index (AHI) of ≥ 15/h were classified as clinically significant OSA group, whereas patients with an AHI < 15/h were classified as control group. RESULTS A total of 277 patients were enrolled in the study. 176 patients were categorized into the OSA group, while 101 patients were categorized into the control group. There is no relationship between any OSA-related parameter and presence of lung nodule or presence of ≥ 6 mm lung nodule in the binary logistic regression analysis. OSA group demonstrated a significant higher value of CEA than control group. Stepwise multiple linear regression analysis showed that lowest O2 saturation (β = - 0.256, p < 0.001), smoking status (β = 0.156, p = 0.007) and age (β = 0.153, p = 0.008) were independent predictors of elevated CEA. CONCLUSIONS OSA was independently related to the elevated of serum CEA level, but not with presence of pulmonary nodule or ≥ 6 mm pulmonary nodule in LDCT. Further well-designed longitudinal studies with pathology available are needed to identify the association between OSA and risk of lung cancer.
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Liu Y, Tabung FK, Stampfer MJ, Redline S, Huang T. Overall diet quality and proinflammatory diet in relation to risk of obstructive sleep apnea in 3 prospective US cohorts. Am J Clin Nutr 2022; 116:1738-1747. [PMID: 36124650 PMCID: PMC9761761 DOI: 10.1093/ajcn/nqac257] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 09/09/2022] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Inflammation-related mechanisms may be important in the development of obstructive sleep apnea (OSA), and diet plays a crucial role in modulating inflammation. Current epidemiologic evidence for the associations between dietary patterns and OSA risk is limited to cross-sectional studies. OBJECTIVES We investigated prospectively the associations of overall diet quality and proinflammatory diet with OSA risk. METHODS We followed 145,801 participants in the Nurses' Health Study (NHS) (2002-2012), NHS II (1995-2013), and Health Professionals Follow-up Study (1996-2012). Alternative Healthy Eating Index 2010 (AHEI) and Empirical Dietary Inflammatory Pattern (EDIP) scores were calculated based on validated FFQs administered every 4 y. Cox models were used to estimate HRs and 95% CIs. RESULTS We documented 8856 incident OSA cases during follow-up. In pooled analyses adjusted for potential confounders, higher diet quality (higher AHEI scores) was associated with lower OSA risk (HR comparing the highest with the lowest quintile of AHEI: 0.76; 95% CI: 0.71, 0.82; P-trend < 0.001), and higher dietary inflammatory potential (higher EDIP scores) was associated with significantly increased risk (HR comparing the highest with the lowest quintile of EDIP: 1.94; 95% CI: 1.81, 2.08; P-trend < 0.001). Additional adjustment for metabolic factors attenuated both associations. The association with AHEI score was no longer statistically significant (comparable HR: 0.98; 95% CI: 0.91, 1.05; P-trend = 0.54), whereas the association with EDIP score remained statistically significant (comparable HR: 1.31; 95% CI: 1.22, 1.41; P-trend < 0.001). CONCLUSIONS A healthier diet, particularly one with anti-inflammatory potential, was associated with lower OSA risk.
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Affiliation(s)
- Yue Liu
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
- Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Fred K Tabung
- James Cancer Hospital and Solove Research Institute, The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
- Division of Medical Oncology, Department of Internal Medicine, College of Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, USA
- Division of Epidemiology, College of Public Health, The Ohio State University, Columbus, OH, USA
- Department of Nutrition, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Meir J Stampfer
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
- Department of Nutrition, Harvard TH Chan School of Public Health, Boston, MA, USA
- Department of Epidemiology, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Susan Redline
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Tianyi Huang
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA
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Teo YH, Tan BKJ, Tan NKW, Yap DWT, Chai YX, Teo YN, Sia CH, Sundar R, Tan E, See A, Toh ST. Obstructive sleep apnea and the incidence and mortality of gastrointestinal cancers: a systematic review and meta-analysis of 5,120,837 participants. J Gastrointest Oncol 2022; 13:2789-2798. [PMID: 36636076 PMCID: PMC9830329 DOI: 10.21037/jgo-22-153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 08/12/2022] [Indexed: 12/29/2022] Open
Abstract
Background Emerging evidence has shown higher overall cancer incidence in patients with obstructive sleep apnea. Gastrointestinal cancers, including esophageal, stomach, liver, pancreas, and colorectal cancers account for 26% of incident cancers. However, the link between gastrointestinal cancers and obstructive sleep apnea is still unclear. We performed a systematic review and meta-analysis (registered PROSPERO CRD42021220836) to investigate the association between obstructive sleep apnea and incidence of gastrointestinal cancer. Methods We searched four electronic databases (PubMed, Embase, Cochrane Library, Scopus) and included studies published from inception till 15th November 2020 reporting the association of obstructive sleep apnea with gastrointestinal cancer incidence. Extracted data was meta-analyzed in a random-effects model. Results A total of seven studies were included, forming a combined cohort of 5,120,837 patients. Studies which adjusted for demographics and comorbidities were included in meta-analysis. Among four studies with 7-11 years of median follow-up, patients with obstructive sleep apnea experienced increased incidence of colorectal cancer (HR 1.70, 95% CI: 1.48-1.96, I2=22%). Pancreatic cancer incidence was nominally increased in three studies (HR 1.36, 95% CI: 0.88-2.09, I2=96), though this was not statistically significant. There was no association between obstructive sleep apnea and liver cancer incidence among three studies (HR 0.99, 95% CI: 0.81-1.22, I2=84). However, the lack of a statistically significant relationship between obstructive sleep apnea and pancreatic cancer in our meta-analysis does not necessarily imply the true absence of an association. Conclusions An increased risk of colorectal cancer was seen in patients with obstructive sleep apnea among studies with long-term follow-up. Further research is required to explore the utility of incorporating obstructive sleep apnea screening into colorectal cancer screening guidelines to identify high-risk individuals and to confirm a possible association of obstructive sleep apnea with pancreatic cancer. PROSPERO Registration CRD42021220836.
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Affiliation(s)
- Yao Hao Teo
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Benjamin Kye Jyn Tan
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Nicole Kye Wen Tan
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Dominic Wei Ting Yap
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Yi Xuen Chai
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Yao Neng Teo
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Ching-Hui Sia
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore;,Department of Cardiology, National University Health System, Singapore, Singapore
| | - Raghav Sundar
- Department of Haematology-Oncology, National University Cancer Institute, Singapore, Singapore
| | - Emile Tan
- Department of Colorectal Surgery, Singapore General Hospital, Singapore, Singapore
| | - Anna See
- Department of Otorhinolaryngology-Head & Neck Surgery, Singapore General Hospital, Singapore, Singapore;,Surgery Academic Clinical Program, SingHealth, Singapore, Singapore
| | - Song Tar Toh
- Department of Otorhinolaryngology-Head & Neck Surgery, Singapore General Hospital, Singapore, Singapore;,Surgery Academic Clinical Program, SingHealth, Singapore, Singapore;,Duke-NUS Sleep Centre, SingHealth, Singapore, Singapore
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Tan BKJ, Tan NKW, Teo YH, Yap DWT, Raghupathy J, Gao EY, Toh ST, See A. Association of obstructive sleep apnea with thyroid cancer incidence: a systematic review and meta-analysis. Eur Arch Otorhinolaryngol 2022; 279:5407-5414. [PMID: 35708764 DOI: 10.1007/s00405-022-07457-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 05/16/2022] [Indexed: 11/03/2022]
Abstract
PURPOSE Obstructive sleep apnea (OSA) is a postulated carcinogen based on epidemiological associations with all-cancer incidence and non-thyroid biological models. However, associations with thyroid carcinoma are unclear. METHODS We included observational/randomized studies of associations of OSA with thyroid carcinoma incidence/mortality in adults, from four databases. Random-effects meta-analyses and the population attributable fraction (PAF; from published global OSA prevalence estimates) were computed. RESULTS We included four observational studies (N = 2,839,325), all with moderate/low risk of bias. OSA diagnosis was associated with twofold incidence of thyroid carcinoma (pooled HR 2.32, 95% CI 1.35-3.98, I2 = 95%), after multi-adjustment for demographics, BMI, smoking, alcohol, and comorbidities. Subgroup analysis of studies with at least 5 years of follow-up showed a stronger association of OSA with thyroid cancer incidence (pooled HR 3.27, 95% CI 2.80-3.82, I2 = 0%). Up to 14.5% (95% CI 4.29-27.6%) of incident thyroid carcinomas globally may be associated with OSA. Thyroid carcinoma mortality data was unavailable. CONCLUSIONS OSA is associated with higher thyroid carcinoma incidence, though this does not prove causation. Biological/clinical studies should investigate OSA severity in relation to thyroid carcinoma progression and mortality, stratified by tumor histology.
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Affiliation(s)
- Benjamin Kye Jyn Tan
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Nicole Kye Wen Tan
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Yao Hao Teo
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Dominic Wei Ting Yap
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Jaivikash Raghupathy
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Esther Yanxin Gao
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Song Tar Toh
- Department of Otorhinolaryngology-Head and Neck Surgery, Singapore General Hospital (SGH), Outram Road, Singapore, 169608, Singapore.,Surgery Academic Clinical Program, SingHealth, Singapore, Singapore
| | - Anna See
- Department of Otorhinolaryngology-Head and Neck Surgery, Singapore General Hospital (SGH), Outram Road, Singapore, 169608, Singapore. .,Surgery Academic Clinical Program, SingHealth, Singapore, Singapore.
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Sleep-disordered breathing and risk of lung cancer: a meta-analysis longitudinal follow-up studies. Eur J Cancer Prev 2022; 31:245-252. [PMID: 34519691 DOI: 10.1097/cej.0000000000000707] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Consensus remains lack regarding whether sleep-disordered breathing (SDB) is an independent risk factor for lung cancer. We therefore conducted a meta-analysis to clarify the relationship of SDB and lung cancer. Longitudinal follow-up studies investigating the association between SDB and incidence of lung cancer were included by search of electronic databases including PubMed, Embase, and Cochrane's Library. A random-effects model was adopted to combine the results. Seven studies were included. Pooled results showed that presence of SDB was independently associated with higher incidence of lung cancer [adjusted risk ratio (RR): 1.28; 95% confidence interval (CI), 1.11-1.47; P < 0.001; I2 = 37%]. Sensitivity analysis limited to studies with adjustment of smoking showed consistent results (three studies, RR: 1.34; 95% CI, 1.22-1.48; P < 0.001; I2 = 8%). Subgroup analysis suggested that the association between SDB and higher risk of lung cancer was not significantly affected by study characteristics such as study design, source of population, sample size, evaluation methods for SDB, follow-up duration, methods for validation of lung cancer, or score of study quality (P values for subgroup difference all >0.05). No significant publication bias was observed (P for Egger's regression test = 0.258). These results suggested that SDB may be an independent risk factor of lung cancer in adult population. Intensive screening and prevention of lung cancer in subjects with SDB should be considered.
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Tan BKJ, Teo YH, Tan NKW, Yap DWT, Sundar R, Lee CH, See A, Toh ST. Association of obstructive sleep apnea and nocturnal hypoxemia with all-cancer incidence and mortality: a systematic review and meta-analysis. J Clin Sleep Med 2022; 18:1427-1440. [PMID: 34755597 PMCID: PMC9059590 DOI: 10.5664/jcsm.9772] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
STUDY OBJECTIVES Biological models suggest that obstructive sleep apnea (OSA) is potentially carcinogenic. We aimed to clarify the inconsistent epidemiological literature by considering various traditional and novel OSA severity indices. METHODS We systematically searched PubMed, Embase, Scopus, and the Cochrane Library for observational or randomized studies of associations of OSA, measured by diagnostic codes or any index, each with all-cancer incidence or mortality in adults, compared with participants with no/mild OSA. Two reviewers independently selected studies, extracted data, and evaluated study bias using the Newcastle-Ottawa scale and quality of evidence using GRADE (Grading of Recommendations Assessment, Development, and Evaluation). We performed inverse variance-weighted, random-effects meta-analyses and sensitivity analyses. RESULTS We included 20 observational studies (5,340,965 participants), all with moderate/low bias, from 1,698 records. Based on T90 (sleep duration with oxygen saturation < 90%), patients with OSA who had moderate (T90 > 1.2%, hazard ratio [HR] = 1.28, 95% confidence interval [CI] = 1.07-1.54) and severe nocturnal hypoxemia (T90 > 12%, HR = 1.43, 95% CI = 1.16-1.76) experienced 30%-40% higher pooled all-cancer risk than normoxemic patients, after multiple adjustment for covariates including obesity. Furthermore, severe nocturnal hypoxemia nearly tripled all-cancer mortality (HR = 2.66, 95% CI = 1.21-5.85). Patients with apnea-hypopnea index-defined severe OSA, but not moderate OSA, had higher all-cancer risk (HR = 1.18, 95% CI = 1.03-1.35) but similar all-cancer mortality as patients without OSA. An OSA diagnosis was not associated with all-cancer risk. Evidence quality ranged from low to moderate. Insufficient evidence was available on the oxygen desaturation index, lowest/median saturation, and arousal index. CONCLUSIONS In patients with OSA, nocturnal hypoxemia is independently associated with all-cancer risk and mortality. Future studies should explore if risk differs by cancer type, and whether cancer screening and OSA treatment are beneficial. SYSTEMATIC REVIEW REGISTRATION Registry: PROSPERO; URL: https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=220836; Identifier: CRD42021220836. CITATION Tan BKJ, Teo YH, Tan NKW, et al. Association of obstructive sleep apnea and nocturnal hypoxemia with all-cancer incidence and mortality: a systematic review and meta-analysis. J Clin Sleep Med. 2022;18(5):1427-1440.
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Affiliation(s)
| | - Yao Hao Teo
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Nicole Kye Wen Tan
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | | | - Raghav Sundar
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore,Department of Hematology-Oncology, National University Cancer Institute, National University Hospital, Singapore,Cancer and Stem Cell Biology Program, Duke-National University of Singapore Medical School, Singapore,The N.1 Institute for Health, National University of Singapore, Singapore,Singapore Gastric Cancer Consortium
| | - Chi Hang Lee
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore,Department of Cardiology, National University Health System, Singapore
| | - Anna See
- Department of Otorhinolaryngology–Head and Neck Surgery, Singapore General Hospital, Singapore,Surgery Academic Clinical Program, SingHealth, Singapore,Address correspondence to: Song Tar Toh, MBBS, MMed (ORL), MMed (Sleep Medicine), FAMS (ORL), Department of Otorhinolaryngology–Head and Neck Surgery, Singapore General Hospital, Outram Road, Singapore 169608; Tel: +65 6222 3322; ; and Anna See, MBBS, MMed (ORL), Department of Otorhinolaryngology–Head and Neck Surgery, Singapore General Hospital, Outram Road, Singapore 169608; Tel: +65 6222 3322;
| | - Song Tar Toh
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore,Department of Otorhinolaryngology–Head and Neck Surgery, Singapore General Hospital, Singapore,Surgery Academic Clinical Program, SingHealth, Singapore,SingHealth Duke-NUS Sleep Centre, SingHealth, Singapore,Address correspondence to: Song Tar Toh, MBBS, MMed (ORL), MMed (Sleep Medicine), FAMS (ORL), Department of Otorhinolaryngology–Head and Neck Surgery, Singapore General Hospital, Outram Road, Singapore 169608; Tel: +65 6222 3322; ; and Anna See, MBBS, MMed (ORL), Department of Otorhinolaryngology–Head and Neck Surgery, Singapore General Hospital, Outram Road, Singapore 169608; Tel: +65 6222 3322;
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12
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Liu Y, Yang L, Stampfer MJ, Redline S, Tworoger SS, Huang T. Physical activity, sedentary behaviour and incidence of obstructive sleep apnoea in three prospective US cohorts. Eur Respir J 2022; 59:13993003.00606-2021. [PMID: 34289976 PMCID: PMC8933852 DOI: 10.1183/13993003.00606-2021] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 06/10/2021] [Indexed: 02/05/2023]
Abstract
BACKGROUND Reduced physical activity and increased sedentary behaviour may independently contribute to the development of obstructive sleep apnoea (OSA) through increased adiposity, inflammation, insulin resistance and body fluid retention. However, epidemiological evidence remains sparse and is primarily limited to cross-sectional studies. METHODS We prospectively followed 50 332 women from the Nurses' Health Study (2002-2012), 68 265 women from the Nurses' Health Study II (1995-2013) and 19 320 men from the Health Professionals Follow-up Study (1996-2012). Recreational physical activity (quantified by metabolic equivalent of task (MET)-h per week) and sitting time spent watching TV and at work/away from home were assessed by questionnaires every 2-4 years. Physician-diagnosed OSA was identified by validated self-report. Cox models were used to estimate hazard ratios (HRs) and 95% confidence intervals for OSA incidence associated with physical activity and sedentary behaviour. RESULTS During 2 004 663 person-years of follow-up, we documented 8733 incident OSA cases. After adjusting for potential confounders, the pooled HR for OSA comparing participants with ≥36.0 versus <6.0 MET-h per week of physical activity was 0.46 (95% CI 0.43-0.50; ptrend<0.001). Compared with participants spending <4.0 h per week sitting watching TV, the multivariable-adjusted HR was 1.78 (95% CI 1.60-1.98) for participants spending ≥28.0 h per week (ptrend<0.001). The comparable HR was 1.49 (95% CI 1.38-1.62) for sitting hours at work/away from home (ptrend<0.001). With additional adjustment for several metabolic factors, including body mass index and waist circumference, the associations with physical activity and sitting hours at work/away from home were attenuated but remained significant (ptrend<0.001), whereas the association with sitting hours watching TV was no longer statistically significant (ptrend=0.18). CONCLUSIONS Higher levels of physical activity and fewer sedentary hours were associated with lower OSA incidence. The potential mediating role of metabolic factors in the association between sedentary behaviour and OSA incidence may depend on the type of sedentary behaviour. Our results suggest that promoting an active lifestyle may reduce OSA incidence.
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Affiliation(s)
- Yue Liu
- Channing Division of Network Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA,Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Lin Yang
- Department of Cancer Epidemiology and Prevention Research, Cancer Care Alberta, Alberta Health Services, Calgary, Canada,Department of Oncology, Cumming School of Medicine, University of Calgary, Calgary, Canada,Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Meir J. Stampfer
- Channing Division of Network Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA,Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA,Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Susan Redline
- Division of Sleep Medicine, Harvard Medical School, Boston, Massachusetts, USA,Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Shelley S. Tworoger
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA,Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida, USA
| | - Tianyi Huang
- Channing Division of Network Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA,Division of Sleep Medicine, Harvard Medical School, Boston, Massachusetts, USA
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13
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Yap DWT, Tan NKW, Tan BKJ, Teo YH, Tan VKM, See A, Toh ST. The Association of Obstructive Sleep Apnea With Breast Cancer Incidence and Mortality: A Systematic Review and Meta-analysis. J Breast Cancer 2022; 25:149-163. [PMID: 35380020 PMCID: PMC9250875 DOI: 10.4048/jbc.2022.25.e11] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 01/08/2022] [Accepted: 02/21/2022] [Indexed: 11/30/2022] Open
Abstract
Purpose Emerging evidence from animal models suggests that intermittent hypoxia due to obstructive sleep apnea (OSA) is a risk factor for breast cancer. Despite their biological plausibility, human epidemiological studies have reported conflicting results. Therefore, we conducted a meta-analysis to delineate this relationship. Methods We searched the PubMed, Embase, Scopus, and Cochrane Library databases for eligible studies from inception until June 6, 2021. Two reviewers selected randomized trials or observational studies reporting the association between OSA and breast cancer incidence compared with those without OSA. Two reviewers extracted relevant data and assessed the quality of evidence using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) framework and Newcastle-Ottawa Scale (NOS). We pooled the maximally covariate-adjusted hazard ratios (HRs) using a random-effects inverse variance-weighted meta-analysis and performed pre-specified subgroup analyses. Results We included six studies out of 1,707 records, comprising a combined cohort of 5,165,200 patients. All studies used the International Classification of Diseases codes to classify OSA and breast cancer. OSA patients had a 36% increased breast cancer risk (HR, 1.36; 95% confidence interval [CI], 1.03–1.80; N = 6, I2 = 96%) compared to those without OSA. Most studies adjusted for confounders, such as age, sex, obesity, diabetes mellitus, alcohol use, and hypertension. Subgroup analyses for studies with (1) multivariate adjustment and (2) at least five years of follow-up yielded HRs of 1.35 (95% CI, 0.98–1.87; N = 5, I2 = 96%) and 1.57 (95% CI, 1.14–2.18; N = 4; I2 = 90%), respectively. One Mendelian randomization study suggested a causal relationship, with a two-fold increase in the odds of breast cancer in patients with OSA. Conclusion This meta-analysis suggested that OSA is a risk factor for breast cancer. Future studies should explore the dose-response relationship between OSA and breast cancer, and whether treatment may mitigate breast cancer risk or progression.
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Affiliation(s)
- Dominic Wei Ting Yap
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| | - Nicole Kye Wen Tan
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| | - Benjamin Kye Jyn Tan
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| | - Yao Hao Teo
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| | - Veronique Kiak Mien Tan
- Department of Breast Surgery, Singapore General Hospital (SGH), Singapore
- Division of Surgery & Surgical Oncology, National Cancer Centre Singapore
- SingHealth Duke-NUS Breast Centre, SingHealth, Singapore
| | - Anna See
- Department of Otorhinolaryngology–Head & Neck Surgery, Singapore General Hospital (SGH), Singapore
| | - Song Tar Toh
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
- Department of Otorhinolaryngology–Head & Neck Surgery, Singapore General Hospital (SGH), Singapore
- SingHealth Duke-NUS Sleep Centre, SingHealth, Singapore
- Duke-NUS Medical School, Singapore
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14
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Obstructive Sleep Apnea and Lung Cancer: A Systematic Review and Meta-analysis of 4,885,518 Participants. Ann Am Thorac Soc 2021; 19:469-475. [PMID: 34792438 DOI: 10.1513/annalsats.202108-960oc] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
RATIONALE In 2020, lung cancer was the leading cause of cancer deaths, and was the most common cancer in men. Though obstructive sleep apnea (OSA) has been postulated to be carcinogenic, epidemiological studies are inconclusive. OBJECTIVES We conducted this systematic review and meta-analysis to investigate the associations between OSA and the incidence and mortality of lung cancer. METHODS Four electronic databases (PubMed, Embase, Cochrane Library, and Scopus) were searched from inception till 6 June 2021 for randomized controlled trials and observational studies examining the association between sleep apnea and incident lung cancer. Two reviewers selected studies, extracted data, graded the risk of bias using the Newcastle-Ottawa scale and the quality of evidence using GRADE. Random-effects models were used to meta-analyze the maximally covariate-adjusted associations. RESULTS Seven studies were included in our systematic review; among which four were suitable for meta-analysis, comprising a combined cohort of 4,885,518 patients. Risk of bias was low to moderate. OSA was associated with a higher incidence of lung cancer (HR 1.25, 95%CI 1.02 to 1.53), with substantial heterogeneity (I²=97%). Heterogeneity was eliminated, with a stable pooled effect size, when including the three studies with at least 5 years of median follow-up (HR 1.32, 95%CI 1.27 to 1.37, I²=0%). CONCLUSIONS In this meta-analysis of 4,885,518 patients from four observational studies, patients with OSA had approximately 30% higher risk of lung cancer, compared to those without OSA. We suggest more clinical studies with longer follow-up as well as biological models of lung cancer be performed to further elucidate this relationship.
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15
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Wei L, Han N, Sun S, Ma X, Zhang Y. Sleep-disordered breathing and risk of the breast cancer: A meta-analysis of cohort studies. Int J Clin Pract 2021; 75:e14793. [PMID: 34482589 DOI: 10.1111/ijcp.14793] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/31/2021] [Accepted: 09/02/2021] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Sleep-disordered breathing (SDB) has been related to a higher risk of breast cancer whereas the results of previous studies are inconsistent. We, therefore, performed a meta-analysis to evaluate the association between SDB and subsequent risk of breast cancer in women. METHODS Cohort studies that investigated the temporal relationship between SDB and breast cancer incidence were obtained via search of PubMed, Embase and Web of Science from inception to 30 January 2021. Only studies with multivariate analyses were included. A fixed or a randomised effect model was applied according to the heterogeneity. RESULTS Eight cohort studies with 1 398 113 women were included. Pooled results with a randomised-effect model showed that compared with women without SDB at baseline, women with SDB had a significantly increased risk of breast cancer (risk ratio [RR]: 1.36, 95% confidence interval [CI]: 1.08 to 1.71, P = .01) with significant heterogeneity (P for Cochrane's Q test < .001, I2 = 95%). Subgroup analyses showed that SDB seemed to confer a more remarkably increased risk of breast cancer in elderly women (RR: 3.00, 95% CI: 1.33 to 6.76, P = .008) than that in non-elderly women (RR: 1.15, 95% CI: 1.02 to 1.29, P = .02; P for subgroup difference = .04). However, the association was not significantly affected by country of the study, study design, diagnostic strategy for SDB or adjustment of obesity (P for subgroup analyses all > .05). CONCLUSIONS SDB may be an independent risk factor for breast cancer in women, particularly in elderly females.
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Affiliation(s)
- Linlin Wei
- Department of Radiotherapy, Cancer Hospital of China Medical University, Shenyang, China
| | - Ning Han
- Department of Radiotherapy, Cancer Hospital of China Medical University, Shenyang, China
| | - Shichen Sun
- Department of Radiotherapy, Cancer Hospital of China Medical University, Shenyang, China
| | - Xinchi Ma
- Department of Radiotherapy, Cancer Hospital of China Medical University, Shenyang, China
| | - Yaotian Zhang
- Department of Radiotherapy, Cancer Hospital of China Medical University, Shenyang, China
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Wang W, He L, Ouyang C, Chen C, Xu X, Ye X. Key Common Genes in Obstructive Sleep Apnea and Lung Cancer are Associated with Prognosis of Lung Cancer Patients. Int J Gen Med 2021; 14:5381-5396. [PMID: 34526807 PMCID: PMC8435481 DOI: 10.2147/ijgm.s330681] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 08/30/2021] [Indexed: 12/29/2022] Open
Abstract
Background Obstructive sleep apnea (OSA) is associated with an increased risk of lung cancer. This study aimed to identify key common genes in OSA and lung cancer and explore their prognostic value in lung cancer. Materials and Methods Transcriptome data of OSA and lung cancer were obtained from the Gene Expression Omnibus (GEO) and The Cancer Genome Atlas (TCGA) database, respectively. Genes associated with OSA and lung cancer were screened by weighted gene co-expression network analysis (WGCNA). Univariate and multivariate Cox regression algorithms were applied to identify key genes and construct the risk score model. Receiver operating characteristic (ROC) curves and a nomogram were performed to evaluate the prognostic value of the risk score. The screened key genes and their roles in prognosis were validated by GEO (GSE30219) analysis. Results A total of 104 common genes were screened in OSA and lung cancer by WGCNA. Modulator of apoptosis 1 (MOAP1), chromobox 7 (CBX7), platelet-derived growth factor subunit B (PDGFB), and mitogen-activated protein kinase 3 (MAP2K3) were identified as key genes by univariate and then multivariate Cox regression analyses. The risk score model was constructed on the basis of four gene signatures. ROC curves and the nomogram showed that the risk score had a high accuracy in predicting the survival of patients with lung cancer. In addition, the result of multivariate Cox regression analysis indicated that the risk score was an independent prognostic factor in lung cancer. Conclusion This study constructed a unique model for predicting the prognosis of lung cancer patients on the basis of four genes common to OSA and lung cancer. These genes may also serve as candidate genes to improve our knowledge about the underlying mechanism of OSA that leads to an increased risk of lung cancer at the genetic level.
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Affiliation(s)
- Wenjun Wang
- Department of Respiratory Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Lirong He
- Department of Respiratory Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Chao Ouyang
- Department of Respiratory Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Chong Chen
- Department of Respiratory Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Xiaofeng Xu
- Department of Respiratory Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Xiaoqun Ye
- Department of Respiratory Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, People's Republic of China
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Gozal D, Almendros I, Phipps AI, Campos-Rodriguez F, Martínez-García MA, Farré R. Sleep Apnoea Adverse Effects on Cancer: True, False, or Too Many Confounders? Int J Mol Sci 2020; 21:ijms21228779. [PMID: 33233617 PMCID: PMC7699730 DOI: 10.3390/ijms21228779] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/18/2020] [Accepted: 11/19/2020] [Indexed: 02/07/2023] Open
Abstract
Obstructive sleep apnoea (OSA) is a prevalent disorder associated with increased cardiovascular, metabolic and neurocognitive morbidity. Recently, an increasing number of basic, clinical and epidemiological reports have suggested that OSA may also increase the risk of cancer, and adversely impact cancer progression and outcomes. This hypothesis is convincingly supported by biological evidence linking certain solid tumours and hypoxia, as well as by experimental studies involving cell and animal models testing the effects of intermittent hypoxia and sleep fragmentation that characterize OSA. However, the clinical and epidemiological studies do not conclusively confirm that OSA adversely affects cancer, even if they hold true for specific cancers such as melanoma. It is likely that the inconclusive studies reflect that they were not specifically designed to test the hypothesis or because of the heterogeneity of the relationship of OSA with different cancer types or even sub-types. This review critically focusses on the extant basic, clinical, and epidemiological evidence while formulating proposed directions on how the field may move forward.
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Affiliation(s)
- David Gozal
- Department of Child Health, The University of Missouri School of Medicine, Columbia, MO 65201, USA
- Correspondence: (D.G.); (R.F.)
| | - Isaac Almendros
- Unitat de Biofísica i Bioenginyeria, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, 08036 Barcelona, Spain;
- CIBER de Enfermedades Respiratorias, 28029 Madrid, Spain;
- Institut d’Investigacions Biomediques August Pi Sunyer, 08036 Barcelona, Spain
| | - Amanda I. Phipps
- Department of Epidemiology, University of Washington School of Public Health, Seattle, WA 98195, USA;
- Epidemiology Program, Fred Hutchinson Research Cancer Research Center, Seattle, WA 98109, USA
| | - Francisco Campos-Rodriguez
- CIBER de Enfermedades Respiratorias, 28029 Madrid, Spain;
- Respiratory Department, Hospital Valme (Seville, Spain), Institute of Biomedicine of Seville (IBiS), 41014 Seville, Spain
| | - Miguel A. Martínez-García
- Pneumology Department, Sleep-Disordered Breathing and Research Unit, Polytechnic and University La Fe Hospital, 46026 Valencia, Spain;
| | - Ramon Farré
- Unitat de Biofísica i Bioenginyeria, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, 08036 Barcelona, Spain;
- CIBER de Enfermedades Respiratorias, 28029 Madrid, Spain;
- Institut d’Investigacions Biomediques August Pi Sunyer, 08036 Barcelona, Spain
- Correspondence: (D.G.); (R.F.)
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