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Testone G, Fernandes M, Carpi M, Lupo C, Mercuri NB, Liguori C. Obstructive sleep apnea may induce sleep-wake cycle dysregulation: An actigraphic study. J Sleep Res 2024:e14273. [PMID: 38888001 DOI: 10.1111/jsr.14273] [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: 03/08/2024] [Revised: 05/03/2024] [Accepted: 05/06/2024] [Indexed: 06/20/2024]
Abstract
Obstructive sleep apnea (OSA) causes sleep fragmentation and excessive daytime sleepiness (EDS). OSA has been hypothesised to impair the circadian sleep-wake rhythm, and this dysregulation may in turn exacerbate OSA-related diurnal symptoms. Hence, this study aimed to assess the sleep-wake rhythm through actigraphy, and its relationship with EDS in patients with untreated OSA. Patients with moderate-severe OSA (apnea-hypopnea index ≥15/h) and healthy controls (HC) underwent a 7-day actigraphic recording to evaluate the sleep-wake rhythm. Participants underwent a sleep medicine visit and completed the self-report questionnaires assessing EDS (Epworth sleepiness scale, ESS), sleep quality (Pittsburgh sleep quality index, PSQI), and chronotype (morningness-eveningness questionnaire, MEQ). This study included 48 OSA patients (72.9% males; mean age 56.48 ± 9.53 years), and 22 HC (45.5% males; mean age 53.73 ± 18.20 years). After controlling for MEQ scores, actigraphic recording showed that the OSA patients present a lower sleep time (p = 0.011) and sleep efficiency (p = 0.013), as well as a higher sleep latency (p = 0.047), and sleep fragmentation (p = 0.029) than the HC. Regarding the sleep-wake rhythm actigraphic parameters, the OSA patients showed a lower average activity during the most active 10-hour period (p = 0.036) and a lower day/night activity ratio (p = 0.007) than the HC. Patients with OSA also reported higher ESS (p = 0.005) and PSQI scores (p < 0.001), and a chronotype less of morning type (p = 0.027) than the HC. In conclusion, this study documented a reduced diurnal motor activity and lower day/night activity ratio in OSA patients than in controls. These findings suggest a dysregulation of the circadian sleep-wake rhythm in OSA, possibly related to both EDS and reduced daytime motor activity.
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Affiliation(s)
- Greta Testone
- Department of Systems Medicine, University of Rome "Tor Vergata", Rome, Italy
| | - Mariana Fernandes
- Department of Systems Medicine, University of Rome "Tor Vergata", Rome, Italy
| | - Matteo Carpi
- Sleep Medicine Centre, Neurology Unit, University Hospital of Rome "Tor Vergata", Rome, Italy
| | - Clementina Lupo
- Department of Systems Medicine, University of Rome "Tor Vergata", Rome, Italy
| | - Nicola Biagio Mercuri
- Department of Systems Medicine, University of Rome "Tor Vergata", Rome, Italy
- Sleep Medicine Centre, Neurology Unit, University Hospital of Rome "Tor Vergata", Rome, Italy
| | - Claudio Liguori
- Department of Systems Medicine, University of Rome "Tor Vergata", Rome, Italy
- Sleep Medicine Centre, Neurology Unit, University Hospital of Rome "Tor Vergata", Rome, Italy
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Ottersbach J, Wetter TC, König N, Fierlbeck A, Weissert R, Popp RF. Prospective analyses of alertness, sleep, and fitness to drive one year after de novo multiple sclerosis diagnosis. Mult Scler Relat Disord 2023; 79:104930. [PMID: 37634469 DOI: 10.1016/j.msard.2023.104930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 07/18/2023] [Accepted: 08/04/2023] [Indexed: 08/29/2023]
Abstract
BACKGROUND The prevalence and functional burden of the chronic demyelinating disease multiple sclerosis (MS) are well documented; however, little is known about the initial clinical course of alertness, sleep, cognitive, and psychological symptoms. OBJECTIVES This exploratory, prospective, longitudinal study multidimensionally investigated the development and progression of alertness, sleep, fitness to drive, and psychological symptoms in the first year after de novo MS diagnosis. METHODS Twenty-five people with MS (pwMS) were assessed cognitively, psychologically, and using polysomnography soon after diagnosis and one year later, with outcomes compared to matched healthy controls. RESULTS In the early stage of the disease, psychological symptoms of pwMS were comparable with those of controls, and patient conditions did not deteriorate within the first disease year. A small percentage of pwMS experienced increased levels of anxiety and depression after diagnosis. Alertness, sustained attention, and fitness to drive were comparable between both groups, and fatigue levels remained low over the course of the year. CONCLUSIONS This study highlights patient experiences within the initial clinical course of MS in a small group of patients. Further research is needed to understand the progression of symptoms and impairments in MS over a longer period and in different stages of the disease.
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Affiliation(s)
- Julia Ottersbach
- Department of Psychiatry and Psychotherapy, Center of Sleep Medicine, Medbo, University of Regensburg, Universitätsstraße 84, Regensburg D-93053, Germany; Department of Experimental Psychology, University of Regensburg, Regensburg, Germany
| | - Thomas C Wetter
- Department of Psychiatry and Psychotherapy, Center of Sleep Medicine, Medbo, University of Regensburg, Universitätsstraße 84, Regensburg D-93053, Germany
| | - Nicole König
- Department of Neurology, University of Regensburg Hospital, Regensburg, Germany
| | - Anna Fierlbeck
- Department of Psychiatry and Psychotherapy, Center of Sleep Medicine, Medbo, University of Regensburg, Universitätsstraße 84, Regensburg D-93053, Germany
| | - Robert Weissert
- Department of Neurology, University of Regensburg Hospital, Regensburg, Germany
| | - Roland Fj Popp
- Department of Psychiatry and Psychotherapy, Center of Sleep Medicine, Medbo, University of Regensburg, Universitätsstraße 84, Regensburg D-93053, Germany.
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Suri TM, Ghosh T, Mittal S, Hadda V, Madan K, Mohan A. Systematic review and meta-analysis of the prevalence of obstructive sleep apnea in Indian adults. Sleep Med Rev 2023; 71:101829. [PMID: 37517357 DOI: 10.1016/j.smrv.2023.101829] [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: 04/15/2023] [Revised: 07/18/2023] [Accepted: 07/18/2023] [Indexed: 08/01/2023]
Abstract
Obstructive sleep apnea (OSA) is a common sleep disorder associated with considerable morbidity. However, there is an underrepresentation of data from India and other developing countries in global reviews of OSA prevalence. This systematic review and meta-analysis examined the prevalence of OSA in India. The MEDLINE, Embase, and Scopus databases were searched for articles that reported the prevalence of OSA in the general Indian adult population using sleep studies. Eight studies were included comprising 11,009 subjects with mean age ranging from 35.5 to 47.8 years. On the Joanna Briggs Institute (JBI) checklist for prevalence studies, the study quality ranged from 3/9 to 9/9. Meta-analysis was performed using the random-effects model. The pooled prevalence of OSA (AHI ≥5 events/hour) was 11% overall (95% CI: 7%-15%; I2 = 98.0%, p<0.001), 13% in males (95% CI: 7%-18%; I2 = 96.0%, p<0.001), and 5% in females (95% CI: 3%-7%; I2 = 73.3%, p = 0.01). The pooled prevalence of moderate-to-severe OSA (AHI ≥15 events/hour) was 5% (95% CI: 2%-8%, I2 = 95.3%; p = 0.01). Based on these findings, approximately 104 million Indians of working age suffer from OSA, of whom 47 million have moderate-to-severe OSA. This represents a major public health problem in India with important implications for the global burden of the disease.
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Affiliation(s)
- Tejas Menon Suri
- Department of Pulmonary, Critical Care & Sleep Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Tamoghna Ghosh
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Saurabh Mittal
- Department of Pulmonary, Critical Care & Sleep Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Vijay Hadda
- Department of Pulmonary, Critical Care & Sleep Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Karan Madan
- Department of Pulmonary, Critical Care & Sleep Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Anant Mohan
- Department of Pulmonary, Critical Care & Sleep Medicine, All India Institute of Medical Sciences, New Delhi, India.
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de Carvalho WC, de Sousa TL, de Jesus ACL, Souza LA, Dos Santos LC, da Silva SVS, Santos DCMB, de Freitas Santos Júnior A, Korn MDGA. Effect of losartan potassium, metformin hydrochloride, and simvastatin on in vitro bioaccessibility of Cu, Fe, Mn, and Zn in oat flour from Brazil. J Trace Elem Med Biol 2022; 73:127032. [PMID: 35797925 DOI: 10.1016/j.jtemb.2022.127032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 06/23/2022] [Accepted: 06/29/2022] [Indexed: 10/17/2022]
Abstract
BACKGROUND The simultaneous administration of drugs with food can compromise the bioaccessibility and absorption of nutrients. The objective of this study was to evaluate the influence of the use of losartan potassium (LP), metformin hydrochloride (MH), and simvastatin (S) on the in vitro bioaccessibility of micronutrients (Cu, Fe, Mn, and Zn) in oat flour from Bahia, Brazil. METHODS The experimental procedure consisted of the in vitro extraction of the bioaccessible fraction of Cu, Fe, Mn, and Zn in oat flour-with and without LP (50 mg), MH (500 mg), and S (20 mg)-using the unified bioaccessibility method (UBM), simulating the conditions of the gastrointestinal tract. For decomposition of the samples (oat flour and residue), a digester block with a closed system was used. To determine the total content (flour and residual fraction) and bioaccessible micronutrients, inductively coupled plasma optical emission spectrometry (ICP OES) was used. RESULTS The bioaccessible contents (µg g-1) without the addition of drugs were: Cu 5.86 ± 0.21, Fe 32.80 ± 1.32, Mn 87.90 ± 1.90, and Zn 30.33 ± 2.05, with bioaccessibility ranging from 31.5 % for Fe to 99 % for Mn. The in vitro extraction method was validated by mass balance with recovery values from 89.78 % for Cu to 101.94 % for Mn. The range of bioaccessible contents (µg g-1) were: Cu (<4.14), Fe (32.10 ± 0.20-54.10 ± 2.03), Mn (81.40 ± 0.93-93.22 ± 0.80), and Zn (<10.80-29.11 ± 2.20). The estimation of the bioaccessibility of Cu, Mn, and Zn in oat flour were compromised in the presence of LP, MH, and S (p < 0.05). CONCLUSION Chemical interactions can occur between drugs and micronutrients. Taken together, our results highlight that LP, MH, and S can interfere with the bioaccessibility of Cu, Fe, Mn, and Zn in oat flour in patients who use these drugs, suggesting its rational use in further investigations.
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Affiliation(s)
- Wellington Correia de Carvalho
- Chemistry Institute, Universidade Federal da Bahia, Salvador, Bahia 40170-115, Brazil; Instituto Federal de Educação, Ciência e Tecnologia da Bahia (IFBA), Campus Porto Seguro, Porto Seguro, Bahia 45810-000, Brazil
| | - Thaís Luz de Sousa
- Chemistry Institute, Universidade Federal da Bahia, Salvador, Bahia 40170-115, Brazil
| | | | - Laís Araújo Souza
- Chemistry Institute, Universidade Federal da Bahia, Salvador, Bahia 40170-115, Brazil
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Jeon B, Luyster FS, Sereika SM, DiNardo MM, Callan JA, Chasens ER. Comorbid obstructive sleep apnea and insomnia and its associations with mood and diabetes-related distress in type 2 diabetes mellitus. J Clin Sleep Med 2021; 18:1103-1111. [PMID: 34879902 DOI: 10.5664/jcsm.9812] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
STUDY OBJECTIVES Previous research suggests that obstructive sleep apnea (OSA) and insomnia frequently co-exist and are prevalent in persons with type 2 diabetes mellitus (T2DM). This study compared mood and diabetes-related distress among OSA, insomnia, and comorbid OSA and insomnia (OSA+I) groups in persons with T2DM. METHODS A secondary analysis was conducted with baseline data from two independent randomized controlled trials evaluating the efficacy of OSA and insomnia treatment. The pooled sample (N=224) included participants with OSA only (n=68 [30.4%]), insomnia only (n=107 [47.8%]), and OSA and insomnia (OSA+I; n=49 [21.9%]). OSA was defined as an apnea-hypopnea index ≥ 15 events per hour; insomnia defined as an Insomnia Severity Index score ≥ 15. Mood was measured by the Profile of Mood States total and subscale scores; diabetes-related distress was assessed by the Problem Areas in Diabetes. One-way analysis of covariance and multivariate analysis of covariance were conducted, controlling for demographic characteristics and restless leg syndrome. RESULTS The insomnia group had on average significantly higher scores for total mood disturbance (insomnia vs. OSA= 45.32 vs. 32.15, p=.049), tension-anxiety (insomnia vs. OSA= 12.64 vs. 9.47, p=.008), and confusion-bewilderment (insomnia vs. OSA= 9.45 vs. 7.46, p=.036) than OSA group. The OSA+I group had on average significantly greater diabetes-related distress than OSA group (OSA+I vs. OSA= 40.61 vs. 30.97, p=.036). CONCLUSIONS Insomnia may have greater impact on mood disturbance and diabetes-related distress than OSA in persons with T2DM. In particular, comorbid insomnia may contribute to greater diabetes-related distress in persons with T2DM and OSA.
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Affiliation(s)
- Bomin Jeon
- University of Pittsburgh School of Nursing, Pittsburgh, PA
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