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Jiang Y, Ge S, Wang C, Jin C, Zhao Y, Liu Q. Causal Relationship Between Micronutrient and Sleep Disorder: A Mendelian Randomization Study. Nat Sci Sleep 2024; 16:1267-1277. [PMID: 39219617 PMCID: PMC11363938 DOI: 10.2147/nss.s475171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Accepted: 08/21/2024] [Indexed: 09/04/2024] Open
Abstract
Background Sleep played an important part in human health, and COVID-19 led to a continuous deterioration of sleep. However, the causal relationship between micronutrient and sleep disorder was not yet fully understood. Methods In this research, the genetic causal relationship between micronutrient and sleep disorder was analyzed utilizing a two-sample Mendelian randomization (MR). Single nucleotide polymorphisms (SNPs) were used as instrumental variables. The analyses were conducted using the MR-Egger, inverse variance weighted, weighted mode, weighted median, simple mode, Cochran's Q test and leave-one-out. Results Our results suggested that 8 genetically predicted micronutrients participated in sleep disorders, including liver iron (L-iron) and iron in sleeping too much, spleen iron (S-iron) in sleeplessness/insomnia, trouble falling or staying asleep, sleep duration (undersleepers) and nonorganic sleeping disorders, iron metabolism disorder (IMD) and vitamin B12 deficiency anaemia (VB12DA) in narcolepsy, urine sodium (uNa) in narcolepsy, sleep apnea syndrome and sleep disorder, vitamin D (VD) in sleep duration (oversleepers), 25-Hydroxyvitamin D (25(OH)D) in trouble falling or staying asleep. Conclusion Our study used Mendelian randomization methods at the SNP level to explore the potential causal relationship among L-iron, iron, S-iron, IMD, uNa, 25(OH)D, VD, VB12DA with certain sleep disorder subtypes. Our results uncovered a micronutrient-based strategy for alleviating sleep disorder symptoms.
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Affiliation(s)
- Yingying Jiang
- Department of Neuropharmacology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, People’s Republic of China
| | - Siqi Ge
- Department of Neuroepidemiology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, People’s Republic of China
| | - Chunyang Wang
- Department of Neuropharmacology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, People’s Republic of China
| | - Chen Jin
- Department of Neuropharmacology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, People’s Republic of China
| | - Yumei Zhao
- Department of Neuropharmacology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, People’s Republic of China
| | - Qingying Liu
- Department of Pain Medicine, the First Affiliated Hospital of Zhengzhou University, Henan, 450052, People’s Republic of China
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Tutan D, Ulfberg J. An analysis of YouTube videos about restless leg syndrome: Choosing the right guide. Medicine (Baltimore) 2023; 102:e35633. [PMID: 37861537 PMCID: PMC10589519 DOI: 10.1097/md.0000000000035633] [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: 09/01/2023] [Accepted: 09/22/2023] [Indexed: 10/21/2023] Open
Abstract
Individuals often resort to YouTube as a means of accessing insights into their medical conditions and potential avenues for treatment. Among prevalent and incapacitating afflictions within the general populace, restless leg syndrome assumes significance. The focal objective of this investigation is to scrutinize the caliber inherent in videos pertaining to restless leg syndrome disseminated via the YouTube platform. The sorting of videos was accomplished by gauging their pertinence subsequent to conducting a search for "restless leg syndrome" on YouTube, specifically on the 20th of August, 2023. The evaluation encompassed videos curated from the selection of the top 50 English language videos deemed most relevant. The review process entailed the comprehensive assessment of relevance and content by 2 distinct medical professionals operating independently. Furthermore, pertinent descriptive attributes of each video, such as upload date, view count, likes, dislikes, and comments, were meticulously documented within the dataset. To ascertain video quality, the DISCERN Score, global quality score, and Journal of the American Medical Association rating scales were employed as evaluative tools. Significant statistical disparities were observed in terms of DISCERN scores between videos uploaded by medical doctors and those uploaded by individuals without medical qualifications (P < .001). Correspondingly, upon comparing the 2 aforementioned groups, videos uploaded by healthcare professionals exhibited statistically superior quality scores in both the Journal of the American Medical Association and global quality score assessments (P < .001 for both comparisons). The informational quality regarding restless leg syndrome on YouTube presents a spectrum of variability. Notably, videos that offer valuable insights, as well as those that could potentially mislead viewers, do not display discernible variations in terms of their viewership and popularity. For patients seeking reliable information, a useful and safe approach involves favoring videos uploaded by medical professionals. It is imperative to prioritize the professional identity of the content uploader rather than being swayed by the video's popularity or the quantity of comments it has amassed.
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Affiliation(s)
- Duygu Tutan
- Erol Olçok Training and Research Hospital, Department of Internal Medicine, Çorum, Turkey
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Tutan D, Ulfberg J, Aydemir N, Eser B, Doğan İ. The Relationship between Serum Selenium Levels and Restless Leg Syndrome in Chronic Kidney Disease Patients. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1795. [PMID: 37893513 PMCID: PMC10608171 DOI: 10.3390/medicina59101795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 09/26/2023] [Accepted: 10/08/2023] [Indexed: 10/29/2023]
Abstract
Background and Objectives: Chronic kidney disease (CKD) is a global public health issue with rising incidence linked to substantial morbidity and mortality. Selenium, an antioxidant trace element, has been linked to low serum levels in end-stage renal disease. Restless Leg Syndrome (RLS), a sleep disorder, is prevalent in CKD patients and significantly impacts their quality of life. The objective of this study was to examine the correlation between serum selenium levels and the prevalence of restless leg syndrome in individuals with chronic kidney disease. Materials and Methods: Forty-six CKD patients undergoing serum selenium level assessments between 1 January 2020 and 28 February 2022, at the Hitit University Faculty of Medicine Department of Nephrology Outpatient Clinic or Hemodialysis Unit, were included. Patients over 18 years of age with no history of hematological or oncological diseases or acute or chronic inflammatory conditions were included in the study groups. Patients taking selenium supplements were excluded. Demographic data, comorbidities, and laboratory values were collected, and RLS presence and severity were evaluated. Statistical analyses include descriptive statistics, correlation analysis, the Mann-Whitney U test, Student's t test, and Chi-square test. Results: Among the 46 patients, 16 (34.78%) had RLS symptoms. The patient group included 34.78% predialysis, 34.78% peritoneal dialysis, and 30.44% hemodialysis patients, with a median age of 47.98 years. There was no difference in age, gender, and Charlson comorbidity between patients with or without RLS (p = 0.881, p = 0.702, p = 0.650). RLS prevalence varied across CKD subgroups, with hemodialysis patients having a higher prevalence (p = 0.036). Clinical parameters such as blood urea nitrogen, creatinine, calcium, phosphorus, platelet counts, and parathyroid hormone levels exhibited significant differences between patients with and without RLS (p < 0.05). Serum selenium levels were not significantly different between patients with and without RLS (p = 0.327). Conclusions: With an increased comorbidity burden, CKD poses a significant healthcare challenge. When accompanied by RLS, this burden can be debilitating. The difference in CKD stages between groups has shed light on a critical determinant of RLS in this population, emphasizing the role of the chronic kidney disease stage. In our study, serum selenium levels were not associated with the presence and severity of RLS. However, prospective studies with larger numbers of participants are needed to draw a definitive conclusion.
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Affiliation(s)
- Duygu Tutan
- Department of Internal Medicine, Erol Olçok Training and Research Hospital, 19040 Çorum, Turkey
| | | | - Nihal Aydemir
- Department of Nephrology, Hitit University Faculty of Medicine, 19030 Çorum, Turkey; (N.A.); (B.E.); (İ.D.)
| | - Barış Eser
- Department of Nephrology, Hitit University Faculty of Medicine, 19030 Çorum, Turkey; (N.A.); (B.E.); (İ.D.)
| | - İbrahim Doğan
- Department of Nephrology, Hitit University Faculty of Medicine, 19030 Çorum, Turkey; (N.A.); (B.E.); (İ.D.)
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Wang Y, Fan H, Ren Z, Liu X, Niu X. Sleep disorder, Mediterranean diet, and all-cause and cause-specific mortality: a prospective cohort study. BMC Public Health 2023; 23:904. [PMID: 37202744 DOI: 10.1186/s12889-023-15870-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 05/10/2023] [Indexed: 05/20/2023] Open
Abstract
BACKGROUND There is a bidirectional effect between sleep disorders and Mediterranean diet (MED), but the joint effect of MED and sleep disorders on mortality is unclear. The aim of this study was to investigate whether there is a synergistic effect of adherence to MED and sleep disorders on all-cause and cause-specific mortality. METHODS The study included 23,212 individuals in the National Health and Nutrition Examination Survey (NHANES) from 2005 to 2014. A 9-point evaluation score, alternative Mediterranean diet (aMED) index was used to assess adherence to MED. Sleep disorder and hours of sleep were assessed by structured questionnaires. Cox regression models were used to assess the relationship between sleep disorders, aMED and all-cause mortality, cause-specific mortality (cardiovascular-related death, cancer-related death). The interaction effect of sleep disorders with aMED on mortality was further assessed. RESULTS Results showed that participants with lower aMED and presence of sleep disorders had significantly higher risk of all-cause mortality and cardiovascular-related mortality (HR, 2.16, 95% CI, 1.49-3.13, P < 0.0001; HR, 2.68, 95% CI, 1.58-4.54, P = 0.0003). A significant interaction effect was found between aMED and sleep disorders on cardiovascular mortality (p for interaction = 0.033). No significant interaction existed between aMED and sleep disorders on all-cause mortality (p for interaction = 0.184) and cancer-related mortality (p for interaction = 0.955). CONCLUSIONS Poorer adherence to MED and sleep disorders synergistically increased long-term all-cause mortality and cardiovascular mortality in NHANES population.
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Affiliation(s)
- Yongle Wang
- Department of Neurology, First Hospital of Shanxi Medical University, No. 85, Jiefangnan Street, Yingze District, Taiyuan City, 030001, Shanxi Province, China
- Clinical college, Shanxi Medical University, No. 58, Xinjiannan Street, Yingze District, Taiyuan City, Shanxi Province, China
| | - Hongxuan Fan
- Clinical college, Shanxi Medical University, No. 58, Xinjiannan Street, Yingze District, Taiyuan City, Shanxi Province, China
- Department of Cardiology, Second Hospital of Shanxi Medical University, Taiyuan City, Shanxi Province, China
| | - Zhaoyu Ren
- Clinical college, Shanxi Medical University, No. 58, Xinjiannan Street, Yingze District, Taiyuan City, Shanxi Province, China
- Department of Cardiology, Second Hospital of Shanxi Medical University, Taiyuan City, Shanxi Province, China
| | - Xuchang Liu
- Clinical college, Shanxi Medical University, No. 58, Xinjiannan Street, Yingze District, Taiyuan City, Shanxi Province, China
| | - Xiaoyuan Niu
- Department of Neurology, First Hospital of Shanxi Medical University, No. 85, Jiefangnan Street, Yingze District, Taiyuan City, 030001, Shanxi Province, China.
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Kawada T. Comment on "Evaluation of Serum Selenium Level, Quality of Sleep, and Life in Pregnant Women with Restless Legs Syndrome". Biol Trace Elem Res 2022:10.1007/s12011-022-03535-6. [PMID: 36536235 DOI: 10.1007/s12011-022-03535-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 12/14/2022] [Indexed: 12/24/2022]
Affiliation(s)
- Tomoyuki Kawada
- Department of Hygiene and Public Health, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-Ku, Tokyo, 113-8602, Japan.
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