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Li X, He J. The Association Between Serum/Plasma Leptin Levels and Obstructive Sleep Apnea Syndrome: A Meta-Analysis and Meta-Regression. Front Endocrinol (Lausanne) 2021; 12:696418. [PMID: 34671315 PMCID: PMC8522441 DOI: 10.3389/fendo.2021.696418] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 09/07/2021] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Obstructive sleep apnea syndrome (OSAS) is associated with various adipokines. Leptin, a common adipokine, has attracted considerable attention of many researchers in recent years. So far, there has been little agreement on whether blood leptin levels differ in patients with OSAS. Thus, this meta-analysis examined the relationship between serum/plasma leptin levels and the occurrence of OSAS. METHOD WanFang, Embase, CNKI, Medline, SinoMed, Web of Science, and PubMed were searched for articles before March 30, 2021, with no language limitations. STATA version 11.0 and R software version 3.6.1 were used to analyze the obtained data. The weighted mean difference and correlation coefficients were used as the main effect sizes with a random-effects model and a fixed-effects model, respectively. Trial sequential analysis was conducted using dedicated software. RESULT Screening of 34 publications identified 45 studies that met the inclusion criteria of this meta-analysis and meta-regression. Our results suggested that plasma/serum leptin levels were remarkably higher in individuals with OSAS than in healthy individuals. Subgroup analyses were performed based on OSAS severity, ethnicity, age, body mass index, assay type, and sample source. The serum and plasma leptin levels were increased in nearly all OSAS subgroups compared to those in the corresponding control groups. Meta-regression analysis indicated that age, BMI, severity, assay approaches, study design, PSG type and ethnicity did not have independent effect on leptin levels. Furthermore, a positive relationship between the serum/plasma leptin level and apnea-hypopnea index (AHI) was found in the meta-analysis. The results of the trial sequential analysis suggested that the enrolled studies surpassed the required information size, confirming that our study findings were reliable. CONCLUSION Our study results demonstrate that OSAS patients have higher leptin levels in serum/plasma compared to controls, and the serum/plasma leptin level is positively correlated with AHI, especially in adults.
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Affiliation(s)
- Xiaoyan Li
- Department of endocrinology, Clinical Medical College and The First Affiliated Hospital of Chengdu Medical College, Chengdu, China
| | - Jie He
- Department of Pulmonary and Critical Care Medicine, Clinical Medical College and The First Affiliated Hospital of Chengdu Medical College, Chengdu, China
- *Correspondence: Jie He,
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Brock JM, Billeter A, Müller-Stich BP, Herth F. Obesity and the Lung: What We Know Today. Respiration 2020; 99:856-866. [PMID: 33242862 DOI: 10.1159/000509735] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 06/23/2020] [Indexed: 11/19/2022] Open
Abstract
Obesity is becoming more and more prevalent especially in Western industrial nations. The understanding of adipose tissue as an endocrine organ as well as the detection of adipocytokines - hormones that are secreted from the adipose tissue - gave reason to examine the interactions between adipose tissue and target organs. These efforts have been intensified especially in the context of bariatric surgery as promising weight loss therapy. Interactions between the lung and adipose tissue have rarely been investigated and are not well understood. There are obvious mechanical effects of obesity on lung function explaining the associations between obesity and lung diseases, in particular obesity hypoventilation syndrome, obstructive sleep apnea syndrome, asthma, and chronic obstructive pulmonary disease. The rise in the prevalence of obesity affects the epidemiology of pulmonary diseases as well. The aim of this review is to summarize the current knowledge on interactions, associations, and consequences of obesity and weight loss on lung function and lung diseases. Based on these data, areas for future research are identified.
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Affiliation(s)
- Judith Maria Brock
- Department of Pneumology and Critical Care Medicine, Thoraxklinik and Translational Lung Research Center Heidelberg (TLRCH), University of Heidelberg, Heidelberg, Germany,
| | - Adrian Billeter
- Department of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany
| | - Beat Peter Müller-Stich
- Department of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany
| | - Felix Herth
- Department of Pneumology and Critical Care Medicine, Thoraxklinik and Translational Lung Research Center Heidelberg (TLRCH), University of Heidelberg, Heidelberg, Germany
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Pamuk AE, Süslü AE, Yalçınkaya A, Öztaş YE, Pamuk G, Özer S, Önerci M. The serum leptin level in non-obese patients with obstructive sleep apnea. Auris Nasus Larynx 2017; 45:796-800. [PMID: 29174427 DOI: 10.1016/j.anl.2017.11.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 10/14/2017] [Accepted: 11/14/2017] [Indexed: 10/18/2022]
Abstract
OBJECTIVE This study aimed to determine the association between the severity of obstructive sleep apnea (OSA) and the serum leptin level in non-obese OSA patients. METHODS This prospective case-control study included non-obese OSA patients that presented with sleep-related disturbances and underwent polysomnography (PSG) between April 2015 and June 2016. The serum leptin level was measured and its relationship to PSG parameters was investigated. RESULTS The study included 73 OSA patients (20 female and 53 male) with a mean age of 41.1±11.5 years and mean body-mass index (BMI) of 26.4±2.7kgm-2. The serum leptin level in 44 patients with moderate/severe OSA (AHI ≥15) was 3.4±2.6ngmL-1, versus 4.5±3.8ngmL-1 in 29 patients with snoring/mild OSA (AHI <15) (P=0.20). There were not any correlations between any of the PSG parameters and the serum leptin level, but there was a significant correlation between the leptin level and BMI (r=0.345, P<0.01). CONCLUSION The serum leptin level does not differ significantly between non-obese OSA patients with moderate/severe and snoring/mild OSA. Obesity is the primary factor associated with the serum leptin level.
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Affiliation(s)
- Ahmet Erim Pamuk
- Akyurt State Hospital, Department of Otorhinolaryngology, 06750 Akyurt, Ankara, Turkey.
| | - Ahmet Emre Süslü
- Hacettepe University, Faculty of Medicine, Department of Otorhinolaryngology, 06100 Sıhhiye, Ankara, Turkey
| | - Ahmet Yalçınkaya
- Hacettepe University, Faculty of Medicine, Department of Biochemistry, 06100 Sıhhiye, Ankara, Turkey
| | - Yeşim Er Öztaş
- Hacettepe University, Faculty of Medicine, Department of Biochemistry, 06100 Sıhhiye, Ankara, Turkey
| | - Gözde Pamuk
- Hacettepe University, Faculty of Medicine, Department of Otorhinolaryngology, 06100 Sıhhiye, Ankara, Turkey
| | - Serdar Özer
- Hacettepe University, Faculty of Medicine, Department of Otorhinolaryngology, 06100 Sıhhiye, Ankara, Turkey
| | - Metin Önerci
- Hacettepe University, Faculty of Medicine, Department of Otorhinolaryngology, 06100 Sıhhiye, Ankara, Turkey
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Sabour H, Latifi S, Soltani Z, Shakeri H, Norouzi Javidan A, Ghodsi SM, Hadian MR, Emami Razavi SH. C-reactive protein as an available biomarker determining mental component of health-related quality of life among individuals with spinal cord injury. J Spinal Cord Med 2017; 40:329-337. [PMID: 26914649 PMCID: PMC5472021 DOI: 10.1080/10790268.2016.1139771] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
OBJECTIVES C-reactive protein (CRP) has been shown to correlate with health-related quality of life (HRQL) in some chronic medical conditions. However, these associations have not yet described in spinal cord injury (SCI). In this study, we tried to identify biomarkers associated with HRQL in SCI. DESIGN Cross-sectional. SETTING Tertiary rehabilitation center. PARTICIPANTS Referred patients to Brain and Spinal Cord Injury Research Center between November 2010 and April 2013. OUTCOME MEASURE Blood samples were taken to measure circulatory CRP, leptin, adiponectin, ferritin, parathyroid hormone, calcitonin, thyroid hormones, fasting plasma glucose and lipid profile. All the analyses were performed with adjustment for injury-related confounders (level of injury, injury completeness and time since injury) and demographic characteristics. HRQL was measured with Short Form health survey (SF-36). RESULTS The initial inverse association between CRP and total score of SF-36 (P: 0.006, r = -0.28) was lost after adjustment for confounders. However, the negative correlation between CRP and Mental Component Summary (MCS) remained significant (P: 0.0005, r = -0.38). Leptin level was inversely correlated with Physical Component Summary (PCS) (P: 0.02, r = -0.30). CONCLUSION Although CRP and leptin levels were not related with total scores of SF-36 questionnaire, CRP can be more useful in determining mental component of HRQL whereas leptin can be a determinant of physical component. The combined consideration of these two biomarkers may help to predict HRQL in individuals with SCI.
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Affiliation(s)
- Hadis Sabour
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran,Correspondence to: Hadis Sabour, Brain and Spinal Cord Injury Research Center, Imam Khomeini Hospital, PO Box: 6114185 Gharib Street, Keshavarz Boulevard, Tehran, Iran. or
| | - Sahar Latifi
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Soltani
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Hania Shakeri
- Department of Pathology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abbas Norouzi Javidan
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed-Mohammad Ghodsi
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Hadian
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed-Hassan Emami Razavi
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
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Lacedonia D, Nigro E, Matera MG, Scudiero O, Monaco ML, Polito R, Carpagnano GE, Foschino Barbaro MP, Mazzarella G, Bianco A, Daniele A. Evaluation of adiponectin profile in Italian patients affected by obstructive sleep apnea syndrome. Pulm Pharmacol Ther 2016; 40:104-8. [DOI: 10.1016/j.pupt.2016.07.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Revised: 07/18/2016] [Accepted: 07/22/2016] [Indexed: 12/17/2022]
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Messina A, De Fusco C, Monda V, Esposito M, Moscatelli F, Valenzano A, Carotenuto M, Viggiano E, Chieffi S, De Luca V, Cibelli G, Monda M, Messina G. Role of the Orexin System on the Hypothalamus-Pituitary-Thyroid Axis. Front Neural Circuits 2016; 10:66. [PMID: 27610076 PMCID: PMC4997012 DOI: 10.3389/fncir.2016.00066] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2016] [Accepted: 08/08/2016] [Indexed: 12/25/2022] Open
Abstract
Hypocretin/orexin (ORX) are two hypothalamic neuropeptides discovered in 1998. Since their discovery, they have been one of the most studied neuropeptide systems because of their projecting fields innervating various brain areas. The orexinergic system is tied to sleep-wakefulness cycle, and narcolepsy is a consequence of their system hypofunction. Orexinergic system is also involved in many other autonomic functions such as feeding, thermoregulation, cardiovascular and neuroendocrine regulation. The main aim of this mini review article is to investigate the relationship between ORX and thyroid system regulation. Although knowledge about the ORX system is evolving, its putative effects on hypothalamic-pituitary-thyroid (HPT) axis still appear unclear. We analyzed some studies about ORX control of HPT axis to know better the relationship between them. The studies that were analyzed suggest Hypocretin/ORX to modulate the thyroid regulation, but the nature (excitatory or inhibitory) of this possible interaction remains actually unclear and needs to be confirmed.
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Affiliation(s)
- Antonietta Messina
- Department of Experimental Medicine, Section of Human Physiology and Unit of Dietetic and Sport Medicine, Second University of Naples Naples, Italy
| | - Carolina De Fusco
- Department of Experimental Medicine, Section of Human Physiology and Unit of Dietetic and Sport Medicine, Second University of Naples Naples, Italy
| | - Vincenzo Monda
- Department of Experimental Medicine, Section of Human Physiology and Unit of Dietetic and Sport Medicine, Second University of Naples Naples, Italy
| | - Maria Esposito
- Neapolitan Brain Group (NBG), Clinic of Child and Adolescent Neuropsychiatry, Department of Mental, Physical Health and Preventive Medicine, Second University of Naples Naples, Italy
| | - Fiorenzo Moscatelli
- Department of Clinical and Experimental Medicine, University of Foggia Foggia, Italy
| | - Anna Valenzano
- Department of Clinical and Experimental Medicine, University of Foggia Foggia, Italy
| | - Marco Carotenuto
- Neapolitan Brain Group (NBG), Clinic of Child and Adolescent Neuropsychiatry, Department of Mental, Physical Health and Preventive Medicine, Second University of Naples Naples, Italy
| | - Emanuela Viggiano
- Department of Experimental Medicine, Section of Human Physiology and Unit of Dietetic and Sport Medicine, Second University of Naples Naples, Italy
| | - Sergio Chieffi
- Department of Experimental Medicine, Section of Human Physiology and Unit of Dietetic and Sport Medicine, Second University of Naples Naples, Italy
| | - Vincenzo De Luca
- Department of Psychiatry, University of Toronto Toronto, ON, Canada
| | - Giuseppe Cibelli
- Department of Clinical and Experimental Medicine, University of Foggia Foggia, Italy
| | - Marcellino Monda
- Department of Experimental Medicine, Section of Human Physiology and Unit of Dietetic and Sport Medicine, Second University of Naples Naples, Italy
| | - Giovanni Messina
- Department of Experimental Medicine, Section of Human Physiology and Unit of Dietetic and Sport Medicine, Second University of NaplesNaples, Italy; Department of Clinical and Experimental Medicine, University of FoggiaFoggia, Italy
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