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Dorranipour D, Pourjafari F, Malekpour-Afshar R, Basiri M, Hosseini M. Assessment of melatonin's therapeutic effectiveness against hepatic steatosis induced by a high-carbohydrate high-fat diet in rats. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024; 397:2971-2985. [PMID: 37864588 DOI: 10.1007/s00210-023-02784-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 10/11/2023] [Indexed: 10/23/2023]
Abstract
Several studies have demonstrated the protective effects of melatonin against metabolic diseases, such as liver steatosis. However, its therapeutic effects have received less scrutiny. The present study aimed to explore melatonin's therapeutic effectiveness in treating non-alcoholic fatty liver disease (NAFLD) induced by a high-carbohydrate high-fat (HCHF) diet in rats. The NAFLD was developed in male Wistar rats using an HCHF diet for 8 weeks. Afterward, they were given melatonin orally for four weeks at doses of 5 mg/kg, 10 mg/kg, and 30 mg/kg, along with the HCHF diet. In addition, six age-matched healthy rats received the highest dose of melatonin (30 mg/kg) for the same duration. Rats on the HCHF diet exhibited obesity, dyslipidemia, hyperglycemia, glucose intolerance, insulin resistance, inflammation, oxidative stress, and liver injury (steatosis). Melatonin treatment at 10 mg/kg and 30 mg/kg reduced body weight, adiposity index, oxidative damage, and inflammation but did not affect impaired glucose metabolism induced by the HCHF diet. Meanwhile, the highest dose of melatonin (30 mg/kg) reduced the liver steatosis index in HCHF rats but caused mild liver damage in healthy rats. In conclusion, using melatonin demonstrated positive outcomes in treating NAFLD induced by the HCHF diet in rats, with no noteworthy effects observed in healthy rats. A moderate dosage of 10 mg/kg of melatonin proved to be a safer and more efficient method for reducing HCHF diet-induced NAFLD in rats. Higher melatonin doses should be cautiously administered due to potential disruptions in lipid metabolism and the risk of liver complications.
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Affiliation(s)
- Davood Dorranipour
- Department of Anatomical Sciences, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Fahimeh Pourjafari
- Department of Anatomical Sciences, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Reza Malekpour-Afshar
- Pathology and Stem Cells Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohsen Basiri
- Department of Anatomical Sciences, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran.
- Neuroscience Research Center, Neuropharmacology Institute, Kerman University of Medical Sciences, Kerman, Iran.
| | - Mehran Hosseini
- Department of Anatomical Sciences, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran.
- Cellular and Molecular Research Center, Birjand University of Medical Sciences, Birjand, Iran.
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Smorodin E, Chuzmarov V, Veidebaum T. The Potential of Integrative Cancer Treatment Using Melatonin and the Challenge of Heterogeneity in Population-Based Studies: A Case Report of Colon Cancer and a Literature Review. Curr Oncol 2024; 31:1994-2023. [PMID: 38668052 PMCID: PMC11049198 DOI: 10.3390/curroncol31040149] [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: 01/28/2024] [Revised: 03/19/2024] [Accepted: 03/27/2024] [Indexed: 04/28/2024] Open
Abstract
Melatonin is a multifunctional hormone regulator that maintains homeostasis through circadian rhythms, and desynchronization of these rhythms can lead to gastrointestinal disorders and increase the risk of cancer. Preliminary clinical studies have shown that exogenous melatonin alleviates the harmful effects of anticancer therapy and improves quality of life, but the results are still inconclusive due to the heterogeneity of the studies. A personalized approach to testing clinical parameters and response to integrative treatment with nontoxic and bioavailable melatonin in patient-centered N-of-1 studies deserves greater attention. This clinical case of colon cancer analyzes and discusses the tumor pathology, the adverse effects of chemotherapy, and the dynamics of markers of inflammation (NLR, LMR, and PLR ratios), tumors (CEA, CA 19-9, and PSA), and hemostasis (D-dimer and activated partial thromboplastin time). The patient took melatonin during and after chemotherapy, nutrients (zinc, selenium, vitamin D, green tea, and taxifolin), and aspirin after chemotherapy. The patient's PSA levels decreased during CT combined with melatonin (19 mg/day), and melatonin normalized inflammatory markers and alleviated symptoms of polyneuropathy but did not help with thrombocytopenia. The results are analyzed and discussed in the context of the literature on oncostatic and systemic effects, alleviating therapy-mediated adverse effects, association with survival, and N-of-1 studies.
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Affiliation(s)
- Eugeniy Smorodin
- Department of Chronic Diseases, National Institute for Health Development, Paldiski mnt 80, 10617 Tallinn, Estonia;
| | - Valentin Chuzmarov
- 2nd Surgery Department, General Surgery and Oncology Surgery Centre, North Estonia Medical Centre, J. Sütiste Str. 19, 13419 Tallinn, Estonia
| | - Toomas Veidebaum
- Department of Chronic Diseases, National Institute for Health Development, Paldiski mnt 80, 10617 Tallinn, Estonia;
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Şentürk E, Yıldız M, Şentürk M, Varol E, Yildirim MS, Yilmaz DA, Atay ME. Investigation of the effect of Ramadan fasting on serum levels of melatonin, cortisol, and serotonin: the case of Turkey. Ir J Med Sci 2024; 193:1073-1077. [PMID: 37737915 DOI: 10.1007/s11845-023-03532-1] [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: 09/01/2023] [Accepted: 09/15/2023] [Indexed: 09/23/2023]
Abstract
INTRODUCTION The aim of this study is to examine the effects of Ramadan fasting on melatonin, cortisol, and serotonin levels. METHODS In this study, the blood of 19 healthy male individuals between the ages of 26 and 51, registered in Agri (Turkey) Family Health Center and fasting during Ramadan, was studied. The study was carried out in 2021-2022. The SPSS-22 package program was used in the analysis of the data. Wilcoxon analysis was used in the study. RESULTS It was determined that the pre-test-post-test melatonin and cortisol levels of the individuals were not statistically significant (p>0.05). It was determined that the pre-test-post-test serotonin difference of the individuals was statistically significant (p<0.05). CONCLUSION It has been determined that Ramadan fasting increases the serotonin level of individuals but does not change the levels of melatonin and cortisol. It was determined that the level of happiness of individuals increased after Ramadan fasting. Longitudinal studies on the effects of Ramadan fasting are recommended.
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Affiliation(s)
- Esra Şentürk
- Faculty of Medicine, Agri Ibrahim Cecen University, Agri, Turkey
| | - Metin Yıldız
- Department of Nursing, Sakarya University, Sakarya, Turkey.
| | - Murat Şentürk
- Faculty of Medicine, Agri Ibrahim Cecen University, Agri, Turkey
| | - Ela Varol
- Department of Nursing, Agri Ibrahim Cecen University School of Health, Agri, Turkey
| | - Mehmet Salih Yildirim
- Vocational School of Health Services, Agri Ibrahim Cecen University School of Health, Agri, Turkey
| | | | - Mehmet Emin Atay
- Vocational School of Health Services, Agri Ibrahim Cecen University School of Health, Agri, Turkey
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Wang JJ, Zhang XY, Zeng Y, Liu QC, Feng XL, Yan JM, Li MH, Reiter RJ, Shen W. Melatonin alleviates the toxic effect of di(2-ethylhexyl) phthalate on oocyte quality resulting from CEBPB suppression during primordial follicle formation. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:132997. [PMID: 38008054 DOI: 10.1016/j.jhazmat.2023.132997] [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: 08/07/2023] [Revised: 10/31/2023] [Accepted: 11/11/2023] [Indexed: 11/28/2023]
Abstract
Presently, the exposure of plasticizers to humans and animals occurs daily, which pose a potential threat to reproductive health. In the present study, a pregnant mouse model exposed to di(2-ethylhexyl) phthalate (DEHP, one of the most common plasticizers) and melatonin was established, and the single-cell transcriptome technology was applied to investigate the effects of melatonin in ovarian cells against DEHP. Results showed that DEHP markedly altered the gene expression pattern of ovarian cells, and severely weakened the histone methylation modification of oocytes. The administration of melatonin recovered the expression of LHX8 and SOHLH1 proteins that essential for primordial follicle formation, and increased the expression of CEBPB, as well as key genes of histone methylation modification (such as Smyd3 and Kdm5a). In addition, the ovarian damage caused by DEHP was also relieved after the overexpression of CEBPB, which suggested melatonin could improve primordial follicle formation progress via enhancing CEBPB expression in mice. Besides, the apoptosis of ovarian cells induced by DEHP also was diminished by melatonin. The study provides evidence of melatonin preventing the damage mediated by plasticizers on the reproductive system in females and CEBPB may serve as a downstream target factor of melatonin in the process.
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Affiliation(s)
- Jun-Jie Wang
- College of Life Sciences, Key Laboratory of Animal Reproduction and Biotechnology in Universities of Shandong, Qingdao Agricultural University, Qingdao 266109, China
| | - Xiao-Yuan Zhang
- College of Life Sciences, Key Laboratory of Animal Reproduction and Biotechnology in Universities of Shandong, Qingdao Agricultural University, Qingdao 266109, China
| | - Yue Zeng
- College of Life Sciences, Key Laboratory of Animal Reproduction and Biotechnology in Universities of Shandong, Qingdao Agricultural University, Qingdao 266109, China
| | - Qing-Chun Liu
- College of Life Sciences, Key Laboratory of Animal Reproduction and Biotechnology in Universities of Shandong, Qingdao Agricultural University, Qingdao 266109, China
| | - Xin-Lei Feng
- Animal Products Quality and Safety Center, Shandong Animal Husbandry and Veterinary Bureau, Jinan 250100, China
| | - Jia-Mao Yan
- College of Life Sciences, Key Laboratory of Animal Reproduction and Biotechnology in Universities of Shandong, Qingdao Agricultural University, Qingdao 266109, China
| | - Ming-Hao Li
- College of Life Sciences, Key Laboratory of Animal Reproduction and Biotechnology in Universities of Shandong, Qingdao Agricultural University, Qingdao 266109, China
| | - Russel J Reiter
- Department of Cell Systems and Anatomy, Long School of Medicine, UT Health, San Antonio, TX 78229, USA
| | - Wei Shen
- College of Life Sciences, Key Laboratory of Animal Reproduction and Biotechnology in Universities of Shandong, Qingdao Agricultural University, Qingdao 266109, China.
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Kamfar WW, Khraiwesh HM, Ibrahim MO, Qadhi AH, Azhar WF, Ghafouri KJ, Alhussain MH, Aldairi AF, AlShahrani AM, Alghannam AF, Abdulal RH, Al-Slaihat AH, Qutob MS, Elrggal ME, Ghaith MM, Azzeh FS. Comprehensive review of melatonin as a promising nutritional and nutraceutical supplement. Heliyon 2024; 10:e24266. [PMID: 38293391 PMCID: PMC10825492 DOI: 10.1016/j.heliyon.2024.e24266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 10/05/2023] [Accepted: 01/05/2024] [Indexed: 02/01/2024] Open
Abstract
Background Melatonin is an indoleamine hormone secreted by the pineal gland at night and has an essential role in regulating human circadian rhythms (the internal 24-h clock) and sleep-wake patterns. However, it has recently gained considerable attention for its demonstrated ability in disease management. This review discusses the major biological activities of melatonin, its metabolites as nutritional supplements, and its bioavailability in food sources. Methods The information acquisition process involved conducting a comprehensive search across academic databases including PubMed, Scopus, Wiley, Embase, and Springer using relevant keywords. Only the most recent, peer-reviewed articles published in the English language were considered for inclusion. Results The molecular mechanisms by which melatonin induces its therapeutic effects have been the subject of various studies. Conclusion While melatonin was initially understood to only regulate circadian rhythms, recent studies indicate that it has a far-reaching effect on various organs and physiological systems, such as immunity, cardiovascular function, antioxidant defense, and lipid hemostasis. As a potent antioxidant, anti-cancer, anti-inflammatory, and immunoregulatory agent, multiple therapeutic applications have been proposed for melatonin.
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Affiliation(s)
- Waad W. Kamfar
- Department of Clinical Nutrition, Faculty of Applied Medical Sciences, UmmAl-Qura University, P.O. Box: 7067, Makkah, Saudi Arabia
- Medical Nutrition and Food Services Department, Almana Hospitals, Aziziah, Dammam, Saudi Arabia
| | - Husam M. Khraiwesh
- Department of Nutrition and Food Processing, Faculty of Agricultural Technology, Al-Balqa’ Applied University, Salt, Jordan
| | - Mohammed O. Ibrahim
- Department of Nutrition and Food Technology, Faculty of Agriculture, Mu'tah University, Karak, Jordan
| | - Alaa H. Qadhi
- Department of Clinical Nutrition, Faculty of Applied Medical Sciences, UmmAl-Qura University, P.O. Box: 7067, Makkah, Saudi Arabia
| | - Wedad F. Azhar
- Department of Clinical Nutrition, Faculty of Applied Medical Sciences, UmmAl-Qura University, P.O. Box: 7067, Makkah, Saudi Arabia
| | - Khloud J. Ghafouri
- Department of Clinical Nutrition, Faculty of Applied Medical Sciences, UmmAl-Qura University, P.O. Box: 7067, Makkah, Saudi Arabia
| | - Maha H. Alhussain
- Department of Food Science and Nutrition, College of Food and Agriculture Sciences, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Abdullah F. Aldairi
- Faculty of Applied Medical Sciences, Department of Clinical Laboratory Sciences, Umm Al-Qura University, Al Abdeyah, Makkah, 7607, Saudi Arabia
| | - Abdullah M. AlShahrani
- Department of Basic Medical Sciences, College of Applied Medical Sciences, Khamis Mushayt, King Khalid University, Abha, 62561, Saudi Arabia
| | - Abdullah F. Alghannam
- Lifestyle and Health Research Center, Health Sciences Research Center, Princess Nourah Bint Abdulrahman University, Riyadh, 84428, Saudi Arabia
| | - Rwaa H. Abdulal
- Vaccines and Immunotherapy Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
- Department of Biology, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Abed H. Al-Slaihat
- Department of Nutrition and Food Technology, School of Agriculture, The University of Jordan, Amman, Jordan
| | - Maysoun S. Qutob
- Clinical Nutrition and Dietetics Department, Faculty of Allied Medical Sciences, Applied Science Private University, Amman, Jordan
| | | | - Mazen M. Ghaith
- Faculty of Applied Medical Sciences, Department of Clinical Laboratory Sciences, Umm Al-Qura University, Al Abdeyah, Makkah, 7607, Saudi Arabia
| | - Firas S. Azzeh
- Department of Clinical Nutrition, Faculty of Applied Medical Sciences, UmmAl-Qura University, P.O. Box: 7067, Makkah, Saudi Arabia
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Komlao P, Kraiwattanapirom N, Promyo K, Hein ZM, Chetsawang B. Melatonin enhances the restoration of neurological impairments and cognitive deficits during drug withdrawal in methamphetamine-induced toxicity and endoplasmic reticulum stress in rats. Neurotoxicology 2023; 99:305-312. [PMID: 37979660 DOI: 10.1016/j.neuro.2023.11.006] [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: 07/18/2023] [Revised: 11/04/2023] [Accepted: 11/12/2023] [Indexed: 11/20/2023]
Abstract
Methamphetamine (METH) is a psychostimulant with a very high addiction rate. Prolonged use of METH has been observed as one of the root causes of neurotoxicity. Melatonin (Mel) has been found to have a significant role in METH-induced neurotoxicity. This study aimed to investigate the restorative effect of Mel on behavioral flexibility in METH-induced cognitive deficits. Male Sprague-Dawley rats were randomly assigned to be intraperitoneally injected with saline (control) or Meth at 5 mg/kg for 7 consecutive days. Then, METH injection was withdrawn and rats in each group were subcutaneously injected with saline or Mel at 10 mg/kg for 14 consecutive days. The stereotypic behavioral test and attentional set-shifting task (ASST) were used to evaluate neurological functions and cognitive flexibility, respectively. Rats developed abnormal features of stereotyped behaviors and deficits in cognitive flexibility after 7 days of METH administration. However, post-treatment with Mel for 14 days after METH withdrawal dramatically ameliorated the neurological and cognitive deficits in METH-treated rats. Blood biomarkers indicated METH-induced systemic low-grade inflammation. Moreover, METH-induced endoplasmic reticulum (ER) stress in the prefrontal cortex was diminished by melatonin supplementation. These findings might reveal the therapeutic potential of Mel in METH toxicity-induced neurological and cognitive deficits.
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Affiliation(s)
- Pongphat Komlao
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, PO Box 616, 6200 MD Maastricht, Netherlands
| | - Natcharee Kraiwattanapirom
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Nakhonpathom 73170, Thailand
| | - Kitipong Promyo
- School of Food Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
| | - Zaw Myo Hein
- Basic Medical Sciences Department, College of Medicine and Center of Medical and Bio-Allied Health Sciences Research, Ajman University, Ajman P.O. Box 346, United Arab Emirates
| | - Banthit Chetsawang
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Nakhonpathom 73170, Thailand.
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Zhu Y, Yang Y, Ni G, Li S, Liu W, Gao Z, Zhang X, Zhang Q, Wang C, Zhou J. On-demand electrically controlled melatonin release from PEDOT/SNP composite improves quality of chronic neural recording. Front Bioeng Biotechnol 2023; 11:1284927. [PMID: 38033812 PMCID: PMC10684936 DOI: 10.3389/fbioe.2023.1284927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 11/06/2023] [Indexed: 12/02/2023] Open
Abstract
Long-time and high-quality signal acquisition performance from implantable electrodes is the key to establish stable and efficient brain-computer interface (BCI) connections. The chronic performance of implantable electrodes is hindered by the inflammatory response of brain tissue. In order to solve the material limitation of biological interface electrodes, we designed sulfonated silica nanoparticles (SNPs) as the dopant of Poly (3,4-ethylenedioxythiophene) (PEDOT) to modify the implantable electrodes. In this work, melatonin (MT) loaded SNPs were incorporated in PEDOT via electrochemical deposition on nickel-chromium (Ni-Cr) alloy electrode and carbon nanotube (CNT) fiber electrodes, without affecting the acute neural signal recording capacity. After coating with PEDOT/SNP-MT, the charge storage capacity of both electrodes was significantly increased, and the electrochemical impedance at 1 kHz of the Ni-Cr alloy electrodes was significantly reduced, while that of the CNT electrodes was significantly increased. In addition, this study inspected the effect of electrically triggered MT release every other day on the quality and longevity of neural recording from implanted neural electrodes in rat hippocampus for 1 month. Both MT modified Ni-Cr alloy electrodes and CNT electrodes showed significantly higher spike amplitude after 26-day recording. Significantly, the histological studies showed that the number of astrocytes around the implanted Ni-Cr alloy electrodes was significantly reduced after MT release. These results demonstrate the potent outcome of PEDOT/SNP-MT treatment in improving the chronic neural recording quality possibly through its anti-inflammatory property.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Changyong Wang
- Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Jin Zhou
- Beijing Institute of Basic Medical Sciences, Beijing, China
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Taha AM, Mahmoud AM, Ghonaim MM, Kamran A, AlSamhori JF, AlBarakat MM, Shrestha AB, Jaiswal V, Reiter RJ. Melatonin as a potential treatment for septic cardiomyopathy. Biomed Pharmacother 2023; 166:115305. [PMID: 37619482 DOI: 10.1016/j.biopha.2023.115305] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 08/02/2023] [Accepted: 08/07/2023] [Indexed: 08/26/2023] Open
Abstract
Septic cardiomyopathy (SCM) is a common complication of sepsis contributing to high mortality rates. Its pathophysiology involves complex factors, including inflammatory cytokines, mitochondrial dysfunction, oxidative stress, and immune dysregulation. Despite extensive research, no effective pharmacological agent has been established for sepsis-induced cardiomyopathy. Melatonin, a hormone with diverse functions in the body, has emerged as a potential agent for SCM through its anti-oxidant, anti-inflammatory, anti-apoptotic, and cardioprotective roles. Through various molecular levels of its mechanism of action, it counterattacks the adverse event of sepsis. Experimental studies have mentioned that melatonin protects against many cardiovascular diseases and exerts preventive effects on SCM. Moreover, melatonin has been investigated in combination with other drugs such as antibiotics, resveratrol, and anti-oxidants showing synergistic effects in reducing inflammation, anti-oxidant, and improving cardiac function. While preclinical studies have demonstrated positive results, clinical trials are required to establish the optimal dosage, route of administration, and treatment duration for melatonin in SCM. Its safety profile, low toxicity, and natural occurrence in the human body provide a favorable basis for its clinical use. This review aims to provide an overview of the current evidence of the use of melatonin in sepsis-induced cardiomyopathy (SICM). Melatonin appears to be promising as a possible treatment for sepsis-induced cardiomyopathy and demands further investigation.
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Affiliation(s)
- Amira Mohamed Taha
- Faculty of Medicine, Fayoum University, Fayoum, Egypt; Medical Research Group of Egypt (MRGE), Negida Academy, Arlington, MA, USA
| | | | | | - Ateeba Kamran
- Bachelor of Medicine, Bachelor of Surgery, Karachi Medical and Dental College, Karachi, Pakistan
| | | | - Majd M AlBarakat
- Faculty of Medicine, Jordan University of Science and Technology, Irbid, Jordan
| | - Abhigan Babu Shrestha
- Department of Internal Medicine, M Abdur Rahim Medical College, Dinajpur, Bangladesh.
| | | | - Russel J Reiter
- Department of Cell Systems and Anatomy, UT Health San Antonio, San Antonio, TX, USA
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Tran CTD, Paragomi P, Tran MT, Nguyen MVT, Tuong TTV, Tran QH, Le LC, Pham HTT, Ha HTT, Bui NC, Vu HH, Ta PQ, Shrubsole MJ, Cai Q, Ye F, Le SH, Van Vu K, Tran HTT, Van Tran T, Boffetta P, Shu XO, Luu HN. Association between Sleep Duration and Colorectal Adenomas: Findings from a Case-Control Study in Vietnam. Cancer Epidemiol Biomarkers Prev 2023; 32:1160-1168. [PMID: 37314746 PMCID: PMC10527343 DOI: 10.1158/1055-9965.epi-23-0056] [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: 01/17/2023] [Revised: 04/12/2023] [Accepted: 06/12/2023] [Indexed: 06/15/2023] Open
Abstract
BACKGROUND Colorectal cancer is one of the leading cancers worldwide and in Vietnam. Adenomas are important precursors of colorectal cancer. Study on the association between sleep duration and development of colorectal adenoma (CRA) is limited, particularly among Vietnamese population. METHODS We conducted an individually matched case-control study of 870 CRA cases and 870 controls in a large-scale colorectal screening program involving 103,542 individuals ages ≥40 years old in Hanoi, Vietnam. Sleep duration was categorized in three groups: short: ≤6 hours/day, normal: 7 to 8 hours/day, and long: >8 hours/day. Conditional logistic regression was used to evaluate the association between sleep duration and adenomas risk after controlling for potential confounders. RESULTS Overall, short-sleep duration was associated with increased risk of having CRA compared with normal duration [OR, 1.48; 95% confidence interval (CI), 1.12-1.97]. This pattern was present in both females (OR, 1.58; 95% CI, 1.14-2.18) and males (OR, 1.45; 95% CI, 1.08-1.93), with advanced adenomas (OR, 1.61; 95% CI, 1.09-2.38) and non-advanced adenomas (OR, 1.66; 95% CI, 1.19-2.32). Furthermore, the association between CRA development and short-sleep duration was more apparent among females who were nondrinker, nonobese, physically active, with proximal or both sided adenomas and with cardiometabolic disorder. Among males, the short-sleep duration was associated with CRA risk among never-smoking, cardiometabolic disorders, and obese. CONCLUSIONS Short-sleep duration was associated with increased prevalence of both advanced and non-advanced CRAs among Vietnamese population. IMPACT Findings from this study showed that maintaining an adequate sleep duration may have an important implication for colorectal adenoma prevention and control.
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Affiliation(s)
- Chi Thi-Du Tran
- Vietnam Colorectal Cancer and Polyps Research Program, Vinmec Healthcare System, Hanoi, Vietnam
- College of Health Sciences, VinUniversity (VinUni), Hanoi, Vietnam
- Center of Applied Sciences, Regenerative Medicine and Advanced Technologies, Vinmec Healthcare System, Hanoi, Vietnam
| | - Pedram Paragomi
- UPMC Hillman Cancer Center, University of Pittsburgh Medical Center (UPMC), 5150 Centre Avenue, Suite 4C, Pittsburgh, PA, 15232
| | - Mo Thi Tran
- Vietnam Colorectal Cancer and Polyps Research Program, Vinmec Healthcare System, Hanoi, Vietnam
| | - Mai Vu-Tuyet Nguyen
- Vietnam Colorectal Cancer and Polyps Research Program, Vinmec Healthcare System, Hanoi, Vietnam
| | - Thuy Thi-Van Tuong
- Vietnam Colorectal Cancer and Polyps Research Program, Vinmec Healthcare System, Hanoi, Vietnam
| | - Quang Hong Tran
- Vietnam Colorectal Cancer and Polyps Research Program, Vinmec Healthcare System, Hanoi, Vietnam
| | - Linh Cu Le
- College of Health Sciences, VinUniversity (VinUni), Hanoi, Vietnam
| | - Huong Thi-Thu Pham
- Department of Gastroenterology, Vinmec International Hospital at Times city, Vinmec Healthcare system, Hanoi, Vietnam
| | - Hien Thi-Thu Ha
- Department of Histopathology, Vinmec International Hospital at Times city, Vinmec Healthcare system, Hanoi, Vietnam
| | - Nam Chi Bui
- Department of Gastroenterology, Vinmec International Hospital at Times city, Vinmec Healthcare system, Hanoi, Vietnam
| | - Hien Huy Vu
- Department of Gastroenterology, Vinmec International Hospital at Times city, Vinmec Healthcare system, Hanoi, Vietnam
| | - Phuong Que Ta
- Department of Gastroenterology, Vinmec International Hospital at Times city, Vinmec Healthcare system, Hanoi, Vietnam
| | - Martha J. Shrubsole
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center and Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Qiuyin Cai
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center and Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Fei Ye
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center and Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Song Huu Le
- Center of Molecular and Genetic Research, 108 Hospital, Hanoi, Vietnam
| | - Khien Van Vu
- Department of Gastroenterology, 108 Hospital, Hanoi, Vietnam
| | - Huong Thi-Thanh Tran
- Vietnam National Cancer Institute, Vietnam National Cancer Hospital, Hanoi, Vietnam
- Department of Ethics and Medical Psychology, Hanoi Medical University, Hanoi, Vietnam
| | - Thuan Van Tran
- Vietnam National Cancer Institute, Vietnam National Cancer Hospital, Hanoi, Vietnam
- Vietnam Ministry of Health, Hanoi, Vietnam
| | - Paolo Boffetta
- Stony Brook Cancer Center, Stony Brook University, Stony Brook, NY, USA
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Xiao-Ou Shu
- Department of Histopathology, Vinmec International Hospital at Times city, Vinmec Healthcare system, Hanoi, Vietnam
| | - Hung N. Luu
- UPMC Hillman Cancer Center, University of Pittsburgh Medical Center (UPMC), 5150 Centre Avenue, Suite 4C, Pittsburgh, PA, 15232
- Department of Epidemiology, School of Public Health, University of Pittsburgh, 130 De Soto St, Pittsburgh, PA 15261
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Melatonin Activates Anti-Inflammatory Features in Microglia in a Multicellular Context: Evidence from Organotypic Brain Slices and HMC3 Cells. Biomolecules 2023; 13:biom13020373. [PMID: 36830742 PMCID: PMC9952958 DOI: 10.3390/biom13020373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/13/2023] [Accepted: 02/14/2023] [Indexed: 02/18/2023] Open
Abstract
Melatonin (MEL) is a neurohormone endowed with neuroprotective activity, exerted both directly on neuronal cells and indirectly through modulation of responsive glial cells. In particular, MEL's effects on microglia are receptor-mediated and in part dependent on SIRT1 activation. In the present study, we exploited the highly preserved cytoarchitecture of organotypic brain cultures (OC) to explore the effects of MEL on hippocampal microglia in a 3D context as compared to a single cell type context represented by the human HMC3 cell line. We first evaluated the expression of MEL receptor MT1 and SIRT1 and then investigated MEL action against an inflammatory stimulation with LPS: OCs were cultured for a total of 2 weeks and during this time exposed to 0.1 μg/mL of LPS for 24 h either on day 1 (LPS 1°) or on day 11 (LPS 11°). MEL was added immediately after plating and kept for the entire experiment. Under these conditions, both MEL and LPS induced amoeboid microglia. However, the same round phenotype matched different polarization features. LPS increased the number of nuclear-NF-kB+ round cells and MEL alone or in combination with LPS increased BDNF+ round microglia. In addition, MEL contrasted LPS effects on NF-kB expression. Data from HMC3 microglia confirmed MEL's anti-inflammatory effects against LPS in terms of CASP1 induction and BDNF release, identifying SIRT1 as a mediator. However, no effects were evident for MEL alone on HMC3 microglia. Overall, our results point to the importance of the multicellular context for full MEL activity, especially in a preventive view, and support the use of OCs as a favorable model to explore inflammatory responses.
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11
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Menéndez-Velázquez A, García-Delgado AB, Morales D. Human-Centric Lighting: Rare-Earth-Free Photoluminescent Materials for Correlated Color Temperature Tunable White LEDs. Int J Mol Sci 2023; 24:3602. [PMID: 36835013 PMCID: PMC9962010 DOI: 10.3390/ijms24043602] [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: 01/12/2023] [Revised: 01/29/2023] [Accepted: 02/02/2023] [Indexed: 02/15/2023] Open
Abstract
Artificial lighting is ubiquitous in modern society, with detrimental effects on sleep and health. The reason for this is that light is responsible not only for vision but also for non-visual functions, such as the regulation of the circadian system. To avoid circadian disruption, artificial lighting should be dynamic, changing throughout the day in a manner comparable to natural light in terms of both light intensity and associated color temperature. This is one of the main goals of human-centric lighting. Regarding the type of materials, the majority of white light-emitting diodes (WLEDs) make use of rare-earth photoluminescent materials; therefore, WLED development is at serious risk due to the explosive growth in demand for these materials and a monopoly on sources of supply. Photoluminescent organic compounds are a considerable and promising alternative. In this article, we present several WLEDs that were manufactured using a blue LED chip as the excitation source and two photoluminescent organic dyes (Coumarin 6 and Nile Red) embedded in flexible layers, which function as spectral converters in a multilayer remote phosphor arrangement. The correlated color temperature (CCT) values range from 2975 K to 6261 K, while light quality is preserved with chromatic reproduction index (CRI) values superior to 80. Our findings illustrate for the first time the enormous potential of organic materials for supporting human-centric lighting.
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12
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Gong YQ, Hou FT, Xiang CL, Li CL, Hu GH, Chen CW. The mechanisms and roles of melatonin in gastrointestinal cancer. Front Oncol 2022; 12:1066698. [PMID: 36591447 PMCID: PMC9798083 DOI: 10.3389/fonc.2022.1066698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 11/29/2022] [Indexed: 12/23/2022] Open
Abstract
Gastrointestinal (GI) cancer is a global health problem with wide lesions and numerous cases. The increased morbidity and mortality of GI cancer is a socio-economic challenge for decades to come. Melatonin, a nature indolamine, exerts a crucial role in molecular interactions involved in multiple functional and physiological processes. Increasing evidence indicates that melatonin can modulate GI tract, decrease the occurrence of GI cancer, and enhance the sensitivity to chemoradiotherapy. However, little is known about the exact role of melatonin in anti-carcinogenesis. In this review, we discuss the action of the beneficial effects of melatonin in GI carcinogenesis. Furthermore, we compile the understanding of the role of melatonin in GI cancer, including esophageal cancer (EC), gastric cancer (GC), hepatocellular carcinoma (HCC), colorectal cancer (CRC), and pancreatic cancer (PC). In addition, the potential therapeutic application and clinical evaluation of melatonin in GI cancer are also discussed.
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Affiliation(s)
- Yong-Qiang Gong
- Department of Gastrointestinal Surgery, Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, China
| | - Fu-Tao Hou
- Department of Gastrointestinal Surgery, Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, China
| | - Cai-Ling Xiang
- Department of Gastrointestinal Surgery, Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, China
| | - Cheng-Long Li
- Department of Gastrointestinal Surgery, Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, China
| | - Guo-Huang Hu
- Department of General Surgery, Institute of Digestive Surgery of Changsha, Affiliated Changsha Hospital of Hunan Normal University, Changsha, Hunan, China,*Correspondence: Guo-Huang Hu, ; Chao-Wu Chen,
| | - Chao-Wu Chen
- Department of Gastrointestinal Surgery, Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, China,*Correspondence: Guo-Huang Hu, ; Chao-Wu Chen,
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13
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Association between genetic polymorphisms in the melatonin receptor type 1 A gene and sleep bruxism. Arch Oral Biol 2022; 144:105565. [DOI: 10.1016/j.archoralbio.2022.105565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 09/09/2022] [Accepted: 09/20/2022] [Indexed: 11/22/2022]
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14
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Fan R, Bu X, Yang S, Tan Y, Wang T, Chen H, Li X. Effect of melatonin on quality of life and symptoms in patients with cancer: a systematic review and meta-analysis of randomised controlled trials. BMJ Open 2022; 12:e060912. [PMID: 36104141 PMCID: PMC9476160 DOI: 10.1136/bmjopen-2022-060912] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE This study systematically reviewed the effect of melatonin (MLT) on quality of life (QoL) and symptoms among patients with cancer. DESIGN Systematic review and meta-analysis. DATA SOURCES Cochrane Library, PubMed, Embase, Web of Science, Medline, CINAHL, Scopus, ClinicalTrials.gov, China Biology Medicine (CBM), ProQuest and Open Grey were searched from inception to November 2021. ELIGIBILITY CRITERIA We included randomised controlled trials (RCTs) assessing the effects of MLT on QoL, sleep quality, fatigue, depression, pain, stomatitis rate and stomatitis severity in adult patients with cancer, without language restrictions. Studies that reported the effects of MLT along with other interventions and had incomplete or absent outcome data were excluded. DATA EXTRACTION AND SYNTHESIS Two independent reviewers extracted data, and another two reviewers assessed the risk of bias. The risk of bias for each eligible study was assessed using the Cochrane assessment tool. The mean difference or standard mean difference (SMD) with 95% CIs was used in the computation of continuous variables to synthesise data. The relative risk was used for dichotomous outcomes. Heterogeneity was assessed and quantified (I2 statistic). RESULTS A total of 19 qualified studies that included 2101 patients with cancer (MLT: 1078, control: 1023) were included in the meta-analysis. The results indicated that MLT had no significant effect on QoL (SMD=-0.01, 95% CI (-0.14 to 0.11), p=0.83), sleep quality (SMD=-0.18, 95% CI (-0.62 to 0.26), p=0.42), fatigue (SMD=-0.34, 95% CI (-0.73 to 0.06), p=0.10), pain (SMD=-0.34, 95% CI (-0.7 to 0.02), p=0.06) or stomatitis severity (RR=0.78, 95% CI (0.47 to 1.30), p=0.35). MLT reduced stomatitis rate among patients with cancer (RR=0.47, 95% CI (0.26 to 0.88), p=0.02), except those with head and neck cancer (RR=1.09, 95% CI (0.92 to 1.29), p=0.35). MLT eased depression in patients who received administration for more than 14 days (SMD=-0.14, 95% CI (-0.27 to -0.01), p=0.03) and those who underwent surgery (SMD=-0.17, 95% CI (-0.32 to -0.03), p=0.02). CONCLUSION The findings showed that MLT did not improve the QoL, sleep quality, fatigue, pain or stomatitis severity among patients with cancer. It had a limited effect on decreasing the stomatitis rate and easing depression. Different treatments, durations and cancer types were the main sources of heterogeneity. Further large-scale RCTs are urgently needed. In addition, the effects of different combinations of MLT dosage and duration, administration types and joint measures are worthy of further study. PROSPERO REGISTRATION NUMBER CRD42021292855.
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Affiliation(s)
- Rongrong Fan
- Department of Nursing Teaching and Research, Hunan Cancer Hospital/Affiliated Cancer Hospital of Xiangya nursing school of Central South University, Changsha, China/Xiangya Center for Evidence-Based Practice & Healthcare Innovation: A Joanna Briggs Institute Affiliated Group, Changsha, China
| | - Xiaofan Bu
- Xiangya Nursing school of Central South University, Changsha, China/Xiangya Center for Evidence-Based Practice & Healthcare Innovation: A Joanna Briggs Institute Affiliated Group, Changsha, China
| | - Siyu Yang
- Department of Nursing Teaching and Research, Hunan Cancer Hospital/Affiliated Cancer Hospital of Xiangya nursing school of Central South University, Changsha, China
| | - Yan Tan
- Department of Gastrointestinal Surgery, Hunan Cancer Hospital/Affiliated Cancer Hospital of Xiangya nursing school of Central South University, Changsha, China
| | - Tongyu Wang
- Department of Nursing Teaching and Research, Hunan Cancer Hospital/Affiliated Cancer Hospital of Xiangya nursing school of Central South University, Changsha, China
| | - Hongyun Chen
- Department of Nursing Teaching and Research, Hunan Cancer Hospital/Affiliated Cancer Hospital of Xiangya nursing school of Central South University, Changsha, China
| | - Xuying Li
- Department of Nursing, Hunan Cancer Hospital/Affiliated Cancer Hospital of Xiangya nursing school of Central South University, Changsha, China/Xiangya Center for Evidence-Based Practice & Healthcare Innovation: A Joanna Briggs Institute Affiliated Group, Changsha, China
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15
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Borges VG, Gabriel JE. Assessment of melatonin-alpha adrenergic receptor complexes by molecular docking analysis. BRAZ J BIOL 2022; 82:e261624. [PMID: 35920463 DOI: 10.1590/1519-6984.261624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 07/23/2022] [Indexed: 11/21/2022] Open
Abstract
The pineal melatonin (N-acetyl-5-methoxytryptamine) is a molecule associated in a way or another with probably all physiological systems, aiming to fulfil its functional integrative roles in central nervous system activity, sleep and wakefulness cycles, energy metabolism and thermoregulation, immune, reproductive, endocrine, cardiovascular, respiratory and excretory systems. Within this context, the present study aimed to assess in silico the formation of complexes between ligand melatonin and other potential receptor proteins by molecular docking analyses. The main steps established in this experimental procedure were: a) search and selection of the 3D structure of the melatonin from DrugBank; b) search and selection of 3D structures of other target receptor proteins using STRING, protein BLAST and database PDB; and c) formation of the complexes between melatonin and receptors selected using AutoDock4.0 server by molecular docking analyses. High reliability score and significant similarity were only identified between type 1B melatonin and alpha-2A adrenergic receptor. Thus, molecular docking assays were carried out using ligand melatonin and crystallographic structures of the alpha-2A adrenergic receptor coupled to an antagonist (ID PDB 6kux) and a partial agonist (ID PDB 6kuy) available in the database PDB. Binding energy values of -6.79 and -6.98 kcal/mol and structural stability by non-covalent intermolecular interactions were predicted during the formation of complexes between melatonin and alpha-2A adrenergic receptor 6kux and 6kuy, respectively. In this way, the findings described in current study may indicate strong interactions between melatonin and adrenoceptors, suggesting its possible partial agonist effect on the activation of the alfa-2A adrenergic receptor.
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Affiliation(s)
- V G Borges
- Universidade Federal de São Carlos - UFSCar, Curso de Graduação de Bacharelado em Biotecnologia, São Carlos, SP, Brasil
| | - J E Gabriel
- Universidade Federal de São Carlos - UFSCar, Centro de Ciências da Saúde e Biológicas - CCBS, Departamento de Hidrobiologia, São Carlos, SP, Brasil
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Bajpai R. Methodological issues in designing and reporting of systematic reviews in assessing association between vitamin D supplementation and COVID-19 severity. QJM 2022; 116:406-407. [PMID: 35861421 PMCID: PMC9384517 DOI: 10.1093/qjmed/hcac179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 07/09/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- Ram Bajpai
- Corresponding author: Ram Bajpai, School of Medicine, Keele University, Staffordshire, UK ST5 BG,
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Anghel L, Baroiu L, Popazu CR, Pătraș D, Fotea S, Nechifor A, Ciubara A, Nechita L, Mușat CL, Stefanopol IA, Tatu AL, Ciubara AB. Benefits and adverse events of melatonin use in the elderly (Review). Exp Ther Med 2022; 23:219. [PMID: 35126722 PMCID: PMC8796282 DOI: 10.3892/etm.2022.11142] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 10/05/2021] [Indexed: 12/11/2022] Open
Abstract
Melatonin is a hormone secreted by the pineal gland in accordance with the circadian rhythm when the light level decreases. Reduction of melatonin secretion with age may be associated with physiological aging in neurodegenerative diseases by affecting the suprachiasmatic nucleus or of the neuronal pathways of transmission to the pineal gland. A significant decrease in melatonin synthesis has been reported in various disorders and diseases, including cardiovascular diseases, metabolic disorders (particularly diabetes type 2), cancer and endocrine diseases. In addition to the fact, that melatonin is a sleep inducer, it also exerts cytoprotective properties as an antioxidant and free radical scavenger. The therapeutic role of melatonin has been demonstrated in sleep disorders, eye damage and cardiovascular disease. The association between melatonin and β-blockers has had a positive impact on sleep disorders in clinical trials. Previous studies have reported the anti-inflammatory effect of melatonin by adjusting levels of pro-inflammatory cytokines, including interleukin (IL)-6, IL-1β and tumor necrosis factor-α. Melatonin treatment has been demonstrated to decrease IL-6 and IL-10 expression levels and efficiently attenuate T-cell proliferation. Currently, there is an inconsistency of scientific data regarding the lowest optimal dose and safety of melatonin for long-term use. The aim of the present review was to summarize the evidence on the role of melatonin in various clinical conditions and highlight the future research in this area.
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Affiliation(s)
- Lucreția Anghel
- Clinical Medical Department, Faculty of Medicine and Pharmacy, 'Dunărea de Jos' University, 800008 Galați, Romania
| | - Liliana Baroiu
- Clinical Medical Department, Faculty of Medicine and Pharmacy, 'Dunărea de Jos' University, 800008 Galați, Romania
| | - Corina Rișcă Popazu
- Clinical Medical Department, Faculty of Medicine and Pharmacy, 'Dunărea de Jos' University, 800008 Galați, Romania
| | - Diana Pătraș
- Internal Medicine Department, St. Andrew The Apostle Clinical Emergency County Hospital, 800578 Galați, Romania
| | - Silvia Fotea
- Clinical Medical Department, Faculty of Medicine and Pharmacy, 'Dunărea de Jos' University, 800008 Galați, Romania
| | - Alexandru Nechifor
- Clinical Medical Department, Faculty of Medicine and Pharmacy, 'Dunărea de Jos' University, 800008 Galați, Romania.,Multidisciplinary Integrated Center of Dermatological Interface Research, 'Dunărea de Jos' University, 800008 Galați, Romania
| | - Anamaria Ciubara
- Clinical Medical Department, Faculty of Medicine and Pharmacy, 'Dunărea de Jos' University, 800008 Galați, Romania
| | - Luiza Nechita
- Clinical Medical Department, Faculty of Medicine and Pharmacy, 'Dunărea de Jos' University, 800008 Galați, Romania
| | - Carmina Liana Mușat
- Department of Morphological and Functional Sciences, Faculty of Medicine and Pharmacy, 'Dunărea de Jos' University, 800008 Galați, Romania
| | - Ioana Anca Stefanopol
- Department of Morphological and Functional Sciences, Faculty of Medicine and Pharmacy, 'Dunărea de Jos' University, 800008 Galați, Romania
| | - Alin Laurențiu Tatu
- Clinical Medical Department, Faculty of Medicine and Pharmacy, 'Dunărea de Jos' University, 800008 Galați, Romania.,Multidisciplinary Integrated Center of Dermatological Interface Research, 'Dunărea de Jos' University, 800008 Galați, Romania.,Research Center in The Field of Medical and Pharmaceutical Sciences, 'Dunărea de Jos' University, 800008 Galați, Romania
| | - Alexandru Bogdan Ciubara
- Department of Morphological and Functional Sciences, Faculty of Medicine and Pharmacy, 'Dunărea de Jos' University, 800008 Galați, Romania
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18
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Menéndez-Velázquez A, Morales D, García-Delgado AB. Light Pollution and Circadian Misalignment: A Healthy, Blue-Free, White Light-Emitting Diode to Avoid Chronodisruption. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:1849. [PMID: 35162871 PMCID: PMC8835293 DOI: 10.3390/ijerph19031849] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 02/01/2022] [Accepted: 02/03/2022] [Indexed: 02/07/2023]
Abstract
Sunlight has participated in the development of all life forms on Earth. The micro-world and the daily rhythms of plants and animals are strongly regulated by the light-dark rhythm. Human beings have followed this pattern for thousands of years. The discovery and development of artificial light sources eliminated the workings of this physiological clock. The world's current external environment is full of light pollution. In many electrical light bulbs used today and considered "environmentally friendly," such as LED devices, electrical energy is converted into short-wavelength illumination that we have not experienced in the past. Such illumination effectively becomes "biological light pollution" and disrupts our pineal melatonin production. The suppression of melatonin at night alters our circadian rhythms (biological rhythms with a periodicity of 24 h). This alteration is known as chronodisruption and is associated with numerous diseases. In this article, we present a blue-free WLED (white light-emitting diode) that can avoid chronodisruption and preserve circadian rhythms. This WLED also maintains the spectral quality of light measured through parameters such as CRI (color reproduction index).
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Affiliation(s)
| | - Dolores Morales
- Photoactive Materials Research Unit, IDONIAL Technology Center, 33417 Avilés, Spain
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19
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Kimble R, Keane KM, Lodge JK, Cheung W, Haskell-Ramsay CF, Howatson G. Polyphenol-rich tart cherries ( Prunus Cerasus, cv Montmorency) improve sustained attention, feelings of alertness and mental fatigue and influence the plasma metabolome in middle-aged adults: a randomised, placebo-controlled trial. Br J Nutr 2022; 128:1-12. [PMID: 35109960 PMCID: PMC9723490 DOI: 10.1017/s0007114522000460] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 12/21/2021] [Accepted: 01/31/2022] [Indexed: 12/14/2022]
Abstract
Tart Montmorency cherries (MC) are a particularly rich source of anthocyanins and other polyphenols that have been shown to elicit antioxidant, anti-inflammatory and vasomodulatory actions. The current study aimed to determine the influence of chronic MC supplementation on cognitive function and mood. In a 3-month double-blinded, placebo-controlled parallel study, middle-aged adults (mean ± sd: 48 ± 6 years) were randomly assigned to either 30 ml twice daily of MC (n 25) or the same amount of an isoenergetic placebo (n 25). Cognitive function and mood were assessed before and after supplementation using a computerised cognitive task battery and visual analogue scales. Cerebral blood flow was also monitored by near-infrared spectroscopy during the task battery, and questionnaires were administered to determine subjective sleep and health status and plasma metabolomics were analysed before and after supplementation. After 3 months, the MC resulted in higher accuracy in digit vigilance (mean difference: 3·3, 95 % CI: 0·2, 6·4 %) with lower number of false alarms (mean difference: -1·2, 95 % CI: -2·0, -0·4) compared with the placebo. There was also a treatment effect for higher alertness (mean difference: 5·9, 95 % CI: 1·3, 10·5 %) and lower mental fatigue ratings (mean difference -9·5, 95 % CI: -16·5, -2·5 %) with MC. Plasma metabolomics revealed an increase in a number of amino acids in response to MC intake, but not placebo. These data suggest an anti-fatiguing effect of MC supplementation as well as the ability to improve sustained attention during times of high cognitive demand, this could be related to changes in amino acid metabolism.
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Affiliation(s)
- Rachel Kimble
- Faculty of Health and Life Sciences, Northumbria University, Newcastle-upon-Tyne, UK
- Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Karen M. Keane
- School of Science and Computing, Galway-Mayo Institute of Technology, Galway, Ireland
| | - John K. Lodge
- Faculty of Health and Life Sciences, Northumbria University, Newcastle-upon-Tyne, UK
| | - William Cheung
- Faculty of Health and Life Sciences, Northumbria University, Newcastle-upon-Tyne, UK
| | | | - Glyn Howatson
- Faculty of Health and Life Sciences, Northumbria University, Newcastle-upon-Tyne, UK
- Water Research Group, School of Environmental Sciences and Development, Northwest University, Potchefstroom, South Africa
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20
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Gao Y, Chen X, Zhou Q, Song J, Zhang X, Sun Y, Yu M, Li Y. Effects of Melatonin Treatment on Perioperative Sleep Quality: A Systematic Review and Meta-Analysis with Trial Sequential Analysis of Randomized Controlled Trials. Nat Sci Sleep 2022; 14:1721-1736. [PMID: 36187327 PMCID: PMC9519126 DOI: 10.2147/nss.s381918] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 09/14/2022] [Indexed: 11/29/2022] Open
Abstract
PURPOSE Perioperative sleep disorders have attracted much attention due to their high prevalence and severe harm, and the current treatment methods are insufficient. Some randomized controlled trials (RCTs) have produced controversial results on whether melatonin can improve perioperative sleep quality. This review aimed to evaluate the effects of melatonin treatment on perioperative sleep quality. PATIENTS AND METHODS A systematic search of six databases was performed to identify RCTs investigating melatonin and perioperative sleep. The outcomes analyzed were subjective sleep quality, sleep latency (SL), total sleep time (TST), sleep efficiency (SE), the behavior of awakenings and daily naps, and the incidence of poor sleep quality. RevMan 5.4 and Stata 16 software was used for the meta-analysis and sensitivity analysis, and trial sequential analysis was conducted using TSA 0.9.5.10 Beta software. This study was registered in PROSPERO (registration number: CRD42022311378). RESULTS 10 studies containing 725 participants were included. Melatonin improved postoperative subjective sleep quality (SMD: -0.30; 95% CI: [-0.47, -0.14]; P = 0.0004) but not preoperative sleep quality (MD: -2.76; 95% CI: [-10.44, 4.91]; P = 0.48). In the postoperative period, 6mg dose had the best efficacy (SMD: -0.31; 95% CI: [-0.57, -0.04]; P = 0.02). Melatonin increased postoperative TST (P = 0.02) and SE (P = 0.002) and decreased the incidence of postoperative poor sleep quality (P = 0.002) but had no effect on SL (P = 0.11), the number and duration of awakenings (P = 0.28; P=0.55), and the number and duration of daily naps (P = 0.26; P = 0.38). The trial sequential analysis showed that the accumulated Z value crossed both the traditional boundary value and the TSA boundary value, further confirming the stability of the result of the meta-analysis. CONCLUSION Melatonin treatment can improve postoperative sleep quality. A 6mg daily dose of melatonin may have a better beneficial effect, which needs further exploration. This study supports the application of melatonin for improving postoperative sleep quality.
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Affiliation(s)
- Yi Gao
- Chifeng Clinical Medical College of Inner Mongolia Medical University, Chifeng, People's Republic of China
| | - Xuezhao Chen
- First Hospital of Shanxi Medical University, Taiyuan, People's Republic of China
| | - Qi Zhou
- Chifeng Clinical Medical College of Inner Mongolia Medical University, Chifeng, People's Republic of China.,Department of Anesthesiology, Chifeng Municipal Hospital, Chifeng, People's Republic of China
| | - Jiannan Song
- Chifeng Clinical Medical College of Inner Mongolia Medical University, Chifeng, People's Republic of China.,Department of Anesthesiology, Chifeng Municipal Hospital, Chifeng, People's Republic of China
| | - Xizhe Zhang
- Chifeng Clinical Medical College of Inner Mongolia Medical University, Chifeng, People's Republic of China.,Department of Anesthesiology, Chifeng Municipal Hospital, Chifeng, People's Republic of China
| | - Yi Sun
- Chifeng Clinical Medical College of Inner Mongolia Medical University, Chifeng, People's Republic of China.,Department of Anesthesiology, Chifeng Municipal Hospital, Chifeng, People's Republic of China
| | - Miao Yu
- Chifeng Clinical Medical College of Inner Mongolia Medical University, Chifeng, People's Republic of China.,Department of Anesthesiology, Chifeng Municipal Hospital, Chifeng, People's Republic of China
| | - Yun Li
- Chifeng Clinical Medical College of Inner Mongolia Medical University, Chifeng, People's Republic of China.,Department of Anesthesiology, Chifeng Municipal Hospital, Chifeng, People's Republic of China
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21
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Nozawa S, Urushihata K, Machida R, Hanaoka M. Sleep architecture of short sleep time in patients with obstructive sleep apnea: a retrospective single-facility study. Sleep Breath 2021; 26:1633-1640. [PMID: 34807406 DOI: 10.1007/s11325-021-02533-7] [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: 06/11/2021] [Revised: 11/14/2021] [Accepted: 11/18/2021] [Indexed: 11/28/2022]
Abstract
PURPOSE Sleep architecture consists of rapid eye movement (REM) sleep and non-REM sleep time. Non-REM sleep time is further classified into three stages by depth (stage N1-N3). Some studies have reported that short sleep time predicts all-cause mortality. Short sleep time can have characteristics of sleep architecture which contribute to poor prognosis. Obstructive sleep apnea (OSA) is a disease which causes cessation or decline of ventilation during sleep due to upper airway stenosis and affects sleep architecture. Few studies have reported on the sleep architecture of short sleep time in patients with OSA. Therefore, we aimed to observe this phenomenon. METHODS From May 2008 to September 2021, patients diagnosed with OSA at our facility were assessed for clinical history and underwent full-night polysomnography (PSG). These patients were classified into two groups: total sleep time (TST) recorded on PSG consisting of a short TST (< 7 h) group and a not short TST (≥ 7 h) group. RESULTS Of 266 patients with OSA, compared to the not short TST group (n = 131), the short TST group (n = 135) had a lower REM sleep time (%) and a higher stage N1 sleep time (%). There was a significant difference in age between the two groups, so sub-analyses classified the patients by age: non-elderly patients (< 65 years) and elderly patients (≥ 65 years) to adjust for age. Both sub-analyses showed similar results to the analysis for the combined ages regarding sleep architecture. CONCLUSION Patients with OSA who had short sleep time had disordered sleep architecture with a lower REM sleep time (%) and more stage N1 sleep time.
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Affiliation(s)
- Shuhei Nozawa
- First Department of Internal Medicine, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Japan.
| | - Kazuhisa Urushihata
- First Department of Internal Medicine, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Japan
| | - Ryosuke Machida
- First Department of Internal Medicine, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Japan
| | - Masayuki Hanaoka
- First Department of Internal Medicine, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Japan
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Liu X, Wang L, Wang Z, Dong Y, Chen Y, Cao J. Mel1b and Mel1c melatonin receptors mediate green light-induced secretion of growth hormone in chick adenohypophysis cells via the AC/PKA and ERK1/2 signalling pathways. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2021; 225:112322. [PMID: 34736066 DOI: 10.1016/j.jphotobiol.2021.112322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 09/09/2021] [Accepted: 09/20/2021] [Indexed: 10/20/2022]
Abstract
A previous study showed that melatonin (MEL) membrane receptors 1b (Mel1b) and Mel1c promoted the secretion of growth hormone (GH) in chick adenohypophysis cells under monochromatic green light. However, the intracellular signalling pathways of these two receptors are unclear. Therefore, cultured adenohypophysis cells derived from chickens exposed to monochromatic green light were treated with MEL, Mel1b- and Mel1c-specific blockers, protein kinase A (PKA) inhibitors and adenylate cyclase (AC), or AC activator in vitro to explore the signal transduction mechanism that promote the secretion of GH. The results showed that Mel1b and Mel1c participate in MEL-mediated green light-induced secretion of GH in chick adenohypophysis cells. However, MEL increased cyclic adenosine monophosphate (cAMP) levels, and p-PKA protein levels were blocked by a Mel1b-specific antagonist but not a Mel1c-specific antagonist, which indicated that Mel1b affected the secretion of GH via the AC/cAMP/PKA signalling pathway. Moreover, Mel1b and Mel1c both activated ERK1/2 to regulate the secretion of GH. In addition, intracellular and extracellular Ca2+ channels were also involved in secretion of GH in chick adenohypophysis cells. These results demonstrate that the MEL mediated green light-induced secretion of GH in chick adenohypophysis via the Mel1b/AC/PKA/ERK1/2, Mel1c/ERK1/2, and intracellular and extracellular Ca2+ channel signalling pathways.
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Affiliation(s)
- Xinfeng Liu
- Laboratory of Anatomy of Domestic Animal, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Lu Wang
- Laboratory of Anatomy of Domestic Animal, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Zixu Wang
- Laboratory of Anatomy of Domestic Animal, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Yulan Dong
- Laboratory of Anatomy of Domestic Animal, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Yaoxing Chen
- Laboratory of Anatomy of Domestic Animal, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Jing Cao
- Laboratory of Anatomy of Domestic Animal, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
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de Almondes KM, Marín Agudelo HA, Jiménez-Correa U. Impact of Sleep Deprivation on Emotional Regulation and the Immune System of Healthcare Workers as a Risk Factor for COVID 19: Practical Recommendations From a Task Force of the Latin American Association of Sleep Psychology. Front Psychol 2021; 12:564227. [PMID: 34093295 PMCID: PMC8172768 DOI: 10.3389/fpsyg.2021.564227] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 04/13/2021] [Indexed: 01/14/2023] Open
Abstract
Healthcare workers who are on the front line of coronavirus disease 2019 (COVID-19) and are also undergoing shift schedules face long work hours with few pauses, experience desynchronization of their circadian rhythm, and an imbalance between work hours effort and reward in saving lives, resulting in an impact on work capacity, aggravated by the lack of personal protective equipment (PPE), few resources and precarious infrastructure, and fear of contracting the virus and contaminating family members. Some consequences are sleep deprivation, chronic insomnia, stress-related sleep disorders, and post-traumatic stress disorder. These sleep alterations critically affect mental health, precipitating or perpetuating anxiety, stress, and depression, resulting in the inability to regulate positive and negative emotions. Pre-existing sleep disorders are an important risk factor for the development and maintenance of PSTD when individuals are exposed to an important stressor such as a COVID-19 pandemic. At the same time, how an individual regulates the emotion associated with worries during daytime functioning impacts nighttime sleep, precipitating and perpetuating difficulties in sleeping. All of these changes in sleep and emotional regulation also alter the immune system. Sleep deprivation is commonly associated with chronic inflammatory diseases, due to the desynchronizations in circadian rhythms, causing possible psychophysiological disorders and impaired neuroimmune-endocrine homeostasis. From this perspective, we clarify in this article how sleep disorders affect the immune system and emotional regulation, explaining their phenomenological and neurobiological mechanisms, and discussing elements of cognitive and behavioral coping for health professionals to adopt and manage a healthier sleep pattern in the COVID-19 outbreak.
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Affiliation(s)
- Katie Moraes de Almondes
- AMBSONO Sleep Clinic, Department of Psychology and Postgraduate Program in Psychobiology, Federal University of Rio Grande do Norte, Natal, Brazil
| | | | - Ulises Jiménez-Correa
- Sleep Disorders Clinic, Research Division, Medicine Faculty, National Autonomous University of Mexico, Mexico City, Mexico
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24
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Fock EM, Parnova RG. Protective Effect of Mitochondria-Targeted Antioxidants against Inflammatory Response to Lipopolysaccharide Challenge: A Review. Pharmaceutics 2021; 13:pharmaceutics13020144. [PMID: 33499252 PMCID: PMC7910823 DOI: 10.3390/pharmaceutics13020144] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/15/2021] [Accepted: 01/17/2021] [Indexed: 12/16/2022] Open
Abstract
Lipopolysaccharide (LPS), the major component of the outer membrane of Gram-negative bacteria, is the most abundant proinflammatory agent. Considerable evidence indicates that LPS challenge inescapably causes oxidative stress and mitochondrial dysfunction, leading to cell and tissue damage. Increased mitochondrial reactive oxygen species (mtROS) generation triggered by LPS is known to play a key role in the progression of the inflammatory response. mtROS at excessive levels impair electron transport chain functioning, reduce the mitochondrial membrane potential, and initiate lipid peroxidation and oxidative damage of mitochondrial proteins and mtDNA. Over the past 20 years, a large number of mitochondria-targeted antioxidants (mito-AOX) of different structures that can accumulate inside mitochondria and scavenge free radicals have been synthesized. Their protective role based on the prevention of oxidative stress and the restoration of mitochondrial function has been demonstrated in a variety of common diseases and pathological states. This paper reviews the current data on the beneficial application of different mito-AOX in animal endotoxemia models, in either in vivo or in vitro experiments. The results presented in our review demonstrate the promising potential of approaches based on mito-AOX in the development of new treatment strategies against Gram-negative infections and LPS per se.
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25
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Mentis AFA, Dardiotis E, Efthymiou V, Chrousos GP. Non-genetic risk and protective factors and biomarkers for neurological disorders: a meta-umbrella systematic review of umbrella reviews. BMC Med 2021; 19:6. [PMID: 33435977 PMCID: PMC7805241 DOI: 10.1186/s12916-020-01873-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Accepted: 11/26/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND The etiologies of chronic neurological diseases, which heavily contribute to global disease burden, remain far from elucidated. Despite available umbrella reviews on single contributing factors or diseases, no study has systematically captured non-purely genetic risk and/or protective factors for chronic neurological diseases. METHODS We performed a systematic analysis of umbrella reviews (meta-umbrella) published until September 20th, 2018, using broad search terms in MEDLINE, SCOPUS, Web of Science, Cochrane Database of Systematic Reviews, Cumulative Index to Nursing and Allied Health Literature, ProQuest Dissertations & Theses, JBI Database of Systematic Reviews and Implementation Reports, DARE, and PROSPERO. The PRISMA guidelines were followed for this study. Reference lists of the identified umbrella reviews were also screened, and the methodological details were assessed using the AMSTAR tool. For each non-purely genetic factor association, random effects summary effect size, 95% confidence and prediction intervals, and significance and heterogeneity levels facilitated the assessment of the credibility of the epidemiological evidence identified. RESULTS We identified 2797 potentially relevant reviews, and 14 umbrella reviews (203 unique meta-analyses) were eligible. The median number of primary studies per meta-analysis was 7 (interquartile range (IQR) 7) and that of participants was 8873 (IQR 36,394). The search yielded 115 distinctly named non-genetic risk and protective factors with a significant association, with various strengths of evidence. Mediterranean diet was associated with lower risk of dementia, Alzheimer disease (AD), cognitive impairment, stroke, and neurodegenerative diseases in general. In Parkinson disease (PD) and AD/dementia, coffee consumption, and physical activity were protective factors. Low serum uric acid levels were associated with increased risk of PD. Smoking was associated with elevated risk of multiple sclerosis and dementia but lower risk of PD, while hypertension was associated with lower risk of PD but higher risk of dementia. Chronic occupational exposure to lead was associated with higher risk of amyotrophic lateral sclerosis. Late-life depression was associated with higher risk of AD and any form of dementia. CONCLUSIONS We identified several non-genetic risk and protective factors for various neurological diseases relevant to preventive clinical neurology, health policy, and lifestyle counseling. Our findings could offer new perspectives in secondary research (meta-research).
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Affiliation(s)
- Alexios-Fotios A Mentis
- Public Health Laboratories, Hellenic Pasteur Institute, Athens, Greece; and, Department of Neurology, University Hospital of Larissa, University of Thessaly, Larissa, Greece.
| | - Efthimios Dardiotis
- Department of Neurology, University Hospital of Larissa, University of Thessaly, Larissa, Greece
| | - Vasiliki Efthymiou
- University Research Institute of Maternal and Child Health and Precision Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - George P Chrousos
- University Research Institute of Maternal and Child Health and Precision Medicine, and UNESCO Chair on Adolescent Health Care, National and Kapodistrian University of Athens, Athens, Greece
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Ramirez AVG, Filho DR, de Sá LBPC. Melatonin and its Relationships with Diabetes and Obesity: A Literature Review. Curr Diabetes Rev 2021; 17:e072620184137. [PMID: 32718296 DOI: 10.2174/1573399816666200727102357] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 07/13/2020] [Accepted: 07/15/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Obesity is an important clinical entity, causing many public health issues. Around two billion people in the world are overweight and obese. Almost 40% of American adults are obese and Brazil has about 18 million obese people. Nowadays, 415 million people have diabetes, around 1 in every 11 adults. These numbers will rise to 650 million people within 20 years. Melatonin shows a positive profile on the regulation of the metabolism of the human body. OBJECTIVE This study aimed to carry out a broad narrative review of the metabolic profile and associations between melatonin, diabetes and obesity. METHODS Article reviews, systematic reviews, prospective studies, retrospective studies, randomized, double-blind, and placebo-controlled trials in humans recently published were selected and analyzed. A total of 368 articles were collated and submitted to the eligibility analysis. Subsequently, 215 studies were selected to compose the content part of the paper, and 153 studies composed the narrative review. RESULTS Studies suggest a possible role of melatonin in metabolic diseases such as obesity, T2DM and metabolic syndrome. Intervention studies using this hormone in metabolic diseases are still unclear regarding the possible benefit of it. There is so far no consensus about the possible role of melatonin as an adjuvant in the treatment of metabolic diseases. More studies are necessary to define possible risks and benefits of melatonin as a therapeutic agent.
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Affiliation(s)
- Ana V G Ramirez
- Clinic Ana Valeria (CAV)- Clinic of Nutrition and Health Science, Street Antônio José Martins Filho, 300, Sao Jose do Rio Preto SP, 15092-230, Brazil
| | - Durval R Filho
- Associacao Brasileira de Nutrologia (ABRAN)/Brazilian Association of Nutrology, Catanduva/SP, Rua Belo Horizonte, 909 - Centro, Catanduva SP, Brazil
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27
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Vaiserman A, Koliada A, Lushchak O, Castillo MJ. Repurposing drugs to fight aging: The difficult path from bench to bedside. Med Res Rev 2020; 41:1676-1700. [PMID: 33314257 DOI: 10.1002/med.21773] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 11/15/2020] [Accepted: 12/02/2020] [Indexed: 12/23/2022]
Abstract
The steady rise in life expectancy occurred across all developed countries during the last century. This demographic trend is, however, not accompanied by the same healthspan extension. This is since aging is the main risk factor for all age-associated pathological conditions. Therefore, slowing the rate of aging is suggested to be more efficient in preventing or delaying age-related diseases than treat them one by one, which is the common approach in a current pharmacological disease-oriented paradigm. To date, a variety of medications designed to treat particular pathological conditions have been shown to exhibit pro-longevity effects in different experimental models. Among them, there are many commonly used prescription and over-the-counter pharmaceuticals such as metformin, rapamycin, aspirin, statins, melatonin, vitamin antioxidants, etc. All of them are being increasingly investigated in preclinical and clinical trials with the aim of determine whether they have potential for extension of human healthspan. The results from these trials are frequently inconclusive and fall short of initial expectations, suggesting that innovative research ideas and additional translational steps are required to overcome obstacles for implementation of such approaches in clinical practice. In this review, recent advances and challenges in the field of repurposing widely used conventional pharmaceuticals to target the aging process are summarized and discussed.
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Affiliation(s)
| | | | - Oleh Lushchak
- Department of Biochemistry and Biotechnology, Vasyl Stefanyk Precarpathian National University, Ivano-Frankivsk, Ukraine
| | - Manuel J Castillo
- Department of Medical Physiology, School of Medicine, University of Granada, Granada, Spain
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28
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Boudewijns EA, Vermond D, van der Kleij RMJJ, Chavannes NH, van Schayck OCP, Kirenga B, Brakema EA. Factors critical to implementation success of cleaner cooking interventions in low-income and middle-income countries: protocol for an umbrella review. BMJ Open 2020; 10:e041821. [PMID: 33293323 PMCID: PMC7722821 DOI: 10.1136/bmjopen-2020-041821] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
INTRODUCTION Over a third of the world's population relies on solid fuels as their primary energy source. These fuels have damaging effects on health, air quality and forest resources. Interventions to promote access to cleaner solid fuel cookstoves and clean fuels have existed for decades. However, the adoption by local communities has largely failed, which led to a waste of resources and suboptimal outcomes. Therefore, the objective of this umbrella review is to identify factors that determine implementation success for cleaner cooking interventions in low-resource settings and weigh their level of confidence in the evidence. METHODS AND ANALYSIS We identified systematic and narrative reviews examining factors that influence the acquisition, initial adoption or sustained use of cleaner solid fuel cookstoves and clean fuels at any scale by a literature search in PubMed, Embase, Global Health Database, Cochrane, PsycINFO, Emcare, Web of Science and CINAHL, without date or language restrictions. The search was conducted on 23 October 2017 and updated on 10 July 2019. Reviews based on qualitative, quantitative or mixed-methods studies were included and will be appraised using the Meta Quality Appraisal Tool combined with the Assessment of Multiple Systematic Reviews. Data will be extracted and factors affecting implementation will be coded using the Consolidated Framework for Implementation Research. The Grading of Recommendations Assessment, Development and Evaluation-Confidence in the Evidence from Reviews of Qualitative Research tool will be used to determine the level of confidence in the coded factors. Two researchers will independently conduct these steps. ETHICS AND DISSEMINATION This umbrella review does not require the approval of an ethical review board. Study results will be published in an international peer-reviewed journal. The outcomes will be converted into two practical tools: one for cleaner solid fuel cookstoves and one for clean fuels. These tools can guide the development of evidence-based implementation strategies for cleaner cooking interventions in low-income and middle-income countries to improve implementation success. These tools should be pilot-tested and promoted among regional and global initiatives. PROSPERO REGISTRATION NUMBER CRD42018088687.
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Affiliation(s)
- Esther A Boudewijns
- Department of Family Medicine, Care and Public Health Research Institute (CAPHRI), Maastricht University, Maastricht, The Netherlands
| | - Debbie Vermond
- Department of Public Health and Primary Care, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Niels H Chavannes
- Department of Public Health and Primary Care, Leiden University Medical Center, Leiden, The Netherlands
| | - Onno C P van Schayck
- Department of Family Medicine, Care and Public Health Research Institute (CAPHRI), Maastricht University, Maastricht, The Netherlands
| | - Bruce Kirenga
- Department of Medicine and Makerere Lung Institute, Makerere University, Kampala, Uganda
| | - Evelyn A Brakema
- Department of Public Health and Primary Care, Leiden University Medical Center, Leiden, The Netherlands
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Posadzki P, Pieper D, Bajpai R, Makaruk H, Könsgen N, Neuhaus AL, Semwal M. Exercise/physical activity and health outcomes: an overview of Cochrane systematic reviews. BMC Public Health 2020; 20:1724. [PMID: 33198717 PMCID: PMC7670795 DOI: 10.1186/s12889-020-09855-3] [Citation(s) in RCA: 125] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 11/08/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Sedentary lifestyle is a major risk factor for noncommunicable diseases such as cardiovascular diseases, cancer and diabetes. It has been estimated that approximately 3.2 million deaths each year are attributable to insufficient levels of physical activity. We evaluated the available evidence from Cochrane systematic reviews (CSRs) on the effectiveness of exercise/physical activity for various health outcomes. METHODS Overview and meta-analysis. The Cochrane Library was searched from 01.01.2000 to issue 1, 2019. No language restrictions were imposed. Only CSRs of randomised controlled trials (RCTs) were included. Both healthy individuals, those at risk of a disease, and medically compromised patients of any age and gender were eligible. We evaluated any type of exercise or physical activity interventions; against any types of controls; and measuring any type of health-related outcome measures. The AMSTAR-2 tool for assessing the methodological quality of the included studies was utilised. RESULTS Hundred and fifty CSRs met the inclusion criteria. There were 54 different conditions. Majority of CSRs were of high methodological quality. Hundred and thirty CSRs employed meta-analytic techniques and 20 did not. Limitations for studies were the most common reasons for downgrading the quality of the evidence. Based on 10 CSRs and 187 RCTs with 27,671 participants, there was a 13% reduction in mortality rates risk ratio (RR) 0.87 [95% confidence intervals (CI) 0.78 to 0.96]; I2 = 26.6%, [prediction interval (PI) 0.70, 1.07], median effect size (MES) = 0.93 [interquartile range (IQR) 0.81, 1.00]. Data from 15 CSRs and 408 RCTs with 32,984 participants showed a small improvement in quality of life (QOL) standardised mean difference (SMD) 0.18 [95% CI 0.08, 0.28]; I2 = 74.3%; PI -0.18, 0.53], MES = 0.20 [IQR 0.07, 0.39]. Subgroup analyses by the type of condition showed that the magnitude of effect size was the largest among patients with mental health conditions. CONCLUSION There is a plethora of CSRs evaluating the effectiveness of physical activity/exercise. The evidence suggests that physical activity/exercise reduces mortality rates and improves QOL with minimal or no safety concerns. TRIAL REGISTRATION Registered in PROSPERO ( CRD42019120295 ) on 10th January 2019.
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Affiliation(s)
- Pawel Posadzki
- Kleijnen Systematic Reviews Ltd., York, UK
- Nanyang Technological University, Singapore, Singapore
| | - Dawid Pieper
- Institute for Research in Operative Medicine, Witten/Herdecke University, Witten, Germany.
| | - Ram Bajpai
- School of Medicine, Keele University, Staffordshire, UK
| | - Hubert Makaruk
- Jozef Pilsudski University of Physical Education in Warsaw, Faculty Physical Education and Health, Biala Podlaska, Poland
| | - Nadja Könsgen
- Institute for Research in Operative Medicine, Witten/Herdecke University, Witten, Germany
| | - Annika Lena Neuhaus
- Institute for Research in Operative Medicine, Witten/Herdecke University, Witten, Germany
| | - Monika Semwal
- Health Outcomes Division, University of Texas at Austin College of Pharmacy, Austin, USA
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Venugopal V, Roberts AC, Kwok KW, Christopoulos GI, Soh CK. Employee experiences in underground workplaces: a qualitative investigation. ERGONOMICS 2020; 63:1337-1349. [PMID: 32515298 DOI: 10.1080/00140139.2020.1780306] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 05/21/2020] [Indexed: 06/11/2023]
Abstract
Underground workplaces (UWS) are increasingly being recognised as a sustainable solution to concerns regarding lack of space facing megacities. UWS can multiply available space by reducing urban sprawl thereby improving quality of life in cities. However, developing workplaces that respond to the needs and preferences of occupants will be a crucial factor in determining the success of this concept. We examine the experiences of existing full-time employees of a large underground facility in North America and analyse how these are related to company policies and other organisational factors. From in-depth interviews of 73 participants, three predominant themes emerged from the analyses: environmental effects (e.g. lack of sunlight), design (e.g. the unique working environment), and organisational factors and social dynamics (e.g. policies regarding breaks). We discuss these themes in relation with interventions that may improve employee comfort and retention and suggest that many factors are within organisational control. Practitioner Summary: Underground workplaces are a sustainable solution to lack of urban space. However, developing effective workplaces is crucial to their success. We examine the experiences of existing employees of an underground facility in North America. We suggest that most negative attitudes towards underground spaces can be mitigated through simple organisational interventions. Abbreviations: UWS: underground workplaces; IRB: institutional review board.
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Affiliation(s)
- Vinita Venugopal
- Civil and Environmental Engineering, Nanyang Technological University, Singapore, Singapore
| | - Adam Charles Roberts
- Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, Singapore
| | - Kian-Woon Kwok
- School of Social Sciences, Nanyang Technological University, Singapore, Singapore
| | | | - Chee-Kiong Soh
- Civil and Environmental Engineering, Nanyang Technological University, Singapore, Singapore
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Liu K, Song J, Yan Y, Zou K, Che Y, Wang B, Li Z, Yu W, Guo W, Zou L, Deng W, Sun X. Melatonin increases the chemosensitivity of diffuse large B-cell lymphoma cells to epirubicin by inhibiting P-glycoprotein expression via the NF-κB pathway. Transl Oncol 2020; 14:100876. [PMID: 33007707 PMCID: PMC7527585 DOI: 10.1016/j.tranon.2020.100876] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 07/06/2020] [Accepted: 07/09/2020] [Indexed: 12/31/2022] Open
Abstract
Background Epirubicin is a first-line chemotherapeutic drug for the clinical treatment of diffuse large B cell lymphoma (DLBCL), but the overexpression of multidrug resistance (MDR) transporter proteins, especially P-glycoprotein (P-gp), renders epirubicin ineffective. Some studies reveal the potential role of melatonin in chemotherapeutic synergy and MDR. Methods The cell viability and apoptosis were determined by CCK-8 assay and acridine orange/ethidium bromide (AO/EB) fluorescence staining assay. Immunofluorescence and immunohistochemical staining were used to detect the expression of P-gp in DLBCL cells and tissues. Rhodamine-123 accumulation assay was used to evaluate the pump function of P-gp. The possible mechanisms of melatonin sensitize DLBCL cells to epirubicin were explored by western blotting, cytochrome C release, and pulldown assay. Results Melatonin significantly enhanced the epirubicin-induced cell proliferation suppression, epirubicin-induced apoptosis, and reduced the IC50 value of epirubicin. Further, melatonin synergized with epirubicin to promote the activation of the mitochondria-mediated apoptosis pathway and increased the accumulation of epirubicin in DLBCL cells by inhibiting the expression and function of P-gp. Immunohistochemical staining studies revealed that P-gp expression was positively correlated with P65 expression. Epirubicin was subsequently discovered to upregulate the expression of P-gp by activating the NF-κB pathway in the DLBCL cells. Melatonin reduced the amount of P65 protein in the nucleus and abrogated the ability of P65 to bind to the ABCB1 promoter, decisively suppressing P-gp expression. Conclusions Our results demonstrated that melatonin inactivates the NF-κB pathway and downregulates the expression of P-gp, ultimately sensitizing DLBCL cells to the epirubicin that suppresses their growth.
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Affiliation(s)
- Kaili Liu
- The Second Affiliated Hospital & Institute of Cancer Stem Cells, Dalian Medical University, Dalian, China
| | - Jincheng Song
- The Second Affiliated Hospital & Institute of Cancer Stem Cells, Dalian Medical University, Dalian, China
| | - Yue Yan
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, China.
| | - Kun Zou
- The First Affiliated Hospital & Institute of Cancer Stem Cells, Dalian Medical University, Dalian, China
| | - Yuxuan Che
- The Second Affiliated Hospital & Institute of Cancer Stem Cells, Dalian Medical University, Dalian, China
| | - Beichen Wang
- The Second Affiliated Hospital & Institute of Cancer Stem Cells, Dalian Medical University, Dalian, China
| | - Zongjuan Li
- The Second Affiliated Hospital & Institute of Cancer Stem Cells, Dalian Medical University, Dalian, China
| | - Wendan Yu
- The Second Affiliated Hospital & Institute of Cancer Stem Cells, Dalian Medical University, Dalian, China.
| | - Wei Guo
- The Second Affiliated Hospital & Institute of Cancer Stem Cells, Dalian Medical University, Dalian, China.
| | - Lijuan Zou
- The Second Affiliated Hospital & Institute of Cancer Stem Cells, Dalian Medical University, Dalian, China.
| | - Wuguo Deng
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, China.
| | - Xiuhua Sun
- The Second Affiliated Hospital & Institute of Cancer Stem Cells, Dalian Medical University, Dalian, China.
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Goggs R. Therapeutic Strategies for Treatment of Immune-Mediated Hemolytic Anemia. Vet Clin North Am Small Anim Pract 2020; 50:1327-1349. [PMID: 32814628 DOI: 10.1016/j.cvsm.2020.07.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Immune-mediated hemolytic anemia is a common hematologic disorder in dogs. Disease management involves immunosuppression using glucocorticoids, potentially in combination with other medications such as azathioprine, cyclosporine, or mycophenolate mofetil. Therapeutic drug monitoring may enhance the utility and maximize the safety of cyclosporine and mycophenolate mofetil. The disease is proinflammatory and prothrombotic. Antithrombotic drug administration is therefore essential, and anticoagulant therapy should be initiated at the time of diagnosis. Additional therapies include red blood cell transfusion to support blood oxygen content. Future therapies may include therapeutic plasma exchange, anti-CD20 monoclonal antibodies, and complement inhibitors.
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Affiliation(s)
- Robert Goggs
- Emergency and Critical Care, Department of Clinical Sciences, Cornell University College of Veterinary Medicine, 930 Campus Road, Ithaca, NY 14853, USA.
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Razali S, Bose A, Chong PW, Benetti C, Colombo P, Wong TW. Design of multi-particulate "Dome matrix" with sustained-release melatonin and delayed-release caffeine for jet lag treatment. Int J Pharm 2020; 587:119618. [PMID: 32673769 DOI: 10.1016/j.ijpharm.2020.119618] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 06/14/2020] [Accepted: 07/01/2020] [Indexed: 02/06/2023]
Abstract
Multi-particulate Dome matrix with sustained-release melatonin and delayed-release caffeine was designed to restore jet lag sleep-wake cycle. The polymeric pellets were produced using extrusion-spheronization technique and fluid-bed coated when applicable. The compact and Dome module were produced by compressing pellets with cushioning agent. Dome matrix was assembly of modules with pre-determined compact formulation and drug release characteristics. The physicochemical and in vivo pharmacokinetics of delivery systems were examined. Melatonin loaded alginate/chitosan-less matrix exhibited full drug release within 8 h gastrointestinal transit with low viscosity hydroxypropymethylcellulose as cushioning agent. The cushioning agent reduced burst drug release and omission of alginate-chitosan enabled full drug release. Delayed-release alginate-chitosan caffeine matrix was not attainable through polymer coating due to premature coat detachment. Admixing of cushioning agent high viscosity hydroxypropylmethylcellulose and high viscosity ethylcellulose (9:1 wt ratio) with coat-free caffeine loaded particulates introduced delayed-release response via hydroxypropylmethylcellulose swelled in early dissolution phase and ethylcellulose sustained matrix hydrophobicity at prolonged phase. The caffeine was released substantially in colonic fluid in response to matrix polymers being degraded by rat colonic content. Dome matrix with dual drug release kinetics and modulated pharmacokinetics is produced to introduce melatonin-induced sleep phase then caffeine-stimulated wake phase.
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Affiliation(s)
- Sharipah Razali
- Non-Destructive Biomedical and Pharmaceutical Research Centre, iPROMISE, Universiti Teknologi MARA Selangor, 42300 Puncak Alam, Selangor, Malaysia; Particle Design Research Group, Faculty of Pharmacy, Universiti Teknologi MARA Selangor, 42300 Puncak Alam, Selangor, Malaysia
| | - Anirbandeep Bose
- Taab Biostudy Services, Jadavpur University, Jadavpur, Kolkata 32, India
| | - Pee Win Chong
- InQpharm Group Sdn Bhd, Plaza Mont Kiara, 2, Jalan Kiara, 50480 Kuala Lumpur, Malaysia
| | - Camillo Benetti
- Non-Destructive Biomedical and Pharmaceutical Research Centre, iPROMISE, Universiti Teknologi MARA Selangor, 42300 Puncak Alam, Selangor, Malaysia; Dipartimento di Farmacia, Università degli Studi di Parma, Parma, Italy
| | - Paolo Colombo
- Dipartimento di Farmacia, Università degli Studi di Parma, Parma, Italy
| | - Tin Wui Wong
- Non-Destructive Biomedical and Pharmaceutical Research Centre, iPROMISE, Universiti Teknologi MARA Selangor, 42300 Puncak Alam, Selangor, Malaysia; Particle Design Research Group, Faculty of Pharmacy, Universiti Teknologi MARA Selangor, 42300 Puncak Alam, Selangor, Malaysia.
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Adenosine-Related Mechanisms in Non-Adenosine Receptor Drugs. Cells 2020; 9:cells9040956. [PMID: 32295065 PMCID: PMC7226956 DOI: 10.3390/cells9040956] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 04/08/2020] [Accepted: 04/10/2020] [Indexed: 12/21/2022] Open
Abstract
Many ligands directly target adenosine receptors (ARs). Here we review the effects of noncanonical AR drugs on adenosinergic signaling. Non-AR mechanisms include raising adenosine levels by inhibiting adenosine transport (e.g., ticagrelor, ethanol, and cannabidiol), affecting intracellular metabolic pathways (e.g., methotrexate, nicotinamide riboside, salicylate, and 5-aminoimidazole-4-carboxamide riboside), or undetermined means (e.g., acupuncture). However, other compounds bind ARs in addition to their canonical ‘on-target’ activity (e.g., mefloquine). The strength of experimental support for an adenosine-related role in a drug’s effects varies widely. AR knockout mice are the ‘gold standard’ method for investigating an AR role, but few drugs have been tested on these mice. Given the interest in AR modulation for treatment of cancer, CNS, immune, metabolic, cardiovascular, and musculoskeletal conditions, it is informative to consider AR and non-AR adenosinergic effects of approved drugs and conventional treatments.
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Colunga Biancatelli RML, Berrill M, Mohammed YH, Marik PE. Melatonin for the treatment of sepsis: the scientific rationale. J Thorac Dis 2020; 12:S54-S65. [PMID: 32148926 DOI: 10.21037/jtd.2019.12.85] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Sepsis affects 30 million people worldwide, leading to 6 million deaths every year (WHO), and despite decades of research, novel initiatives are drastically needed. According to the current literature, oxidative imbalance and mitochondrial dysfunction are common features of septic patients that can cause multiorgan failure and death. Melatonin, alongside its traditionally accepted role as the master hormonal regulator of the circadian rhythm, is a promising adjunctive drug for sepsis through its anti-inflammatory, antiapoptotic and powerful antioxidant properties. Several animal models of sepsis have demonstrated that melatonin can prevent multiorgan dysfunction and improve survival through restoring mitochondrial electron transport chain (ETC) function, inhibiting nitric oxide synthesis and reducing cytokine production. The purpose of this article is to review the current evidence for the role of melatonin in sepsis, review its pharmacokinetic profile and virtual absence of side effects. While clinical data is limited, we propose the adjunctive use of melatonin is patients with severe sepsis and septic shock.
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Affiliation(s)
- Ruben Manuel Luciano Colunga Biancatelli
- Division of Pulmonary and Critical Care Medicine, Eastern Virginia Medical School, Norfolk, VA, USA.,Policlinico Umberto I, La Sapienza University of Rome, Rome, Italy
| | - Max Berrill
- Division of Pulmonary and Critical Care Medicine, Eastern Virginia Medical School, Norfolk, VA, USA.,St. Peter's Hospital, Department of Respiratory Medicine, London, UK
| | - Yassen H Mohammed
- Department of Internal Medicine, Eastern Virginia Medical School, Norfolk, VA, USA
| | - Paul E Marik
- Division of Pulmonary and Critical Care Medicine, Eastern Virginia Medical School, Norfolk, VA, USA
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Abstract
Introduction: Neonatal sepsis (NS) is a very severe condition that causes significant morbidity and mortality.Areas covered: To overcome the limits of antibiotic therapy and improve NS outcomes, measures chosen among those theoretically able to improve host defenses or positively interfere with deleterious immune responses could be suggested. This paper discusses the mechanisms of action of these measures, whether their efficacy in prophylaxis justifies use in NS therapy and their impact.Expert opinion: NS remains a relevant problem despite the availability of antibiotics effective against the most common agents and the introduction of effective preventive measures such as group B Streptococcus prenatal screening and intrapartum antibiotic prophylaxis. This explains why attempts to introduce new prophylactic and therapeutic measures have been made. Unfortunately, none of the measures suggested and tested to date can be considered a definitive advance. It is highly likely that in the future, new measures will be proposed according to the increase in the knowledge of the characteristics of immune system function in preterm infants and the methods to modulate unproper immune responses.
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Affiliation(s)
- Susanna Esposito
- Pediatric Clinic, Pietro Barilla Children's Hospital, Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Nicola Principi
- Professor Emeritus of Pediatrics, Università degli Studi di Milano, Milan, Italy
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Adverse Events Associated with Melatonin for the Treatment of Primary or Secondary Sleep Disorders: A Systematic Review. CNS Drugs 2019; 33:1167-1186. [PMID: 31722088 DOI: 10.1007/s40263-019-00680-w] [Citation(s) in RCA: 84] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Melatonin is widely available either on prescription for the treatment of sleep disorders or as an over-the-counter dietary supplement. Melatonin has also recently been licensed in the UK for the short-term treatment of jetlag. Little is known about the potential for adverse events (AEs), in particular AEs resulting from long-term use. Concern has been raised over the possible risks of exposure in certain populations including pre-adolescent children and patients with epilepsy or asthma. OBJECTIVES The aim of this systematic review was to assess the evidence for AEs associated with short-term and longer-term melatonin treatment for sleep disorders. METHODS A literature search of the PubMed/Medline database and Google Scholar was conducted to identify randomised, placebo-controlled trials (RCTs) of exogenous melatonin administered for primary or secondary sleep disorders. Studies were included if they reported on both the types and frequencies of AEs. Studies of pre-term infants, studies of < 1 week in duration or involving single doses of melatonin and studies in languages other than English were excluded. Findings from open-label studies that raised concerns relating to AE reports in patients were also examined. Studies were assessed for quality of reporting against the Consolidated Standards of Reporting Trials (CONSORT) checklist and for risk of bias against the Cochrane Collaboration risk-of-bias criteria. RESULTS 37 RCTs met criteria for inclusion. Daily melatonin doses ranged from 0.15 mg to 12 mg. Subjects were monitored for up to 29 weeks, but most studies were of much shorter duration (4 weeks or less). The most frequently reported AEs were daytime sleepiness (1.66%), headache (0.74%), other sleep-related AEs (0.74%), dizziness (0.74%) and hypothermia (0.62%). Very few AEs considered to be serious or of clinical significance were reported. These included agitation, fatigue, mood swings, nightmares, skin irritation and palpitations. Most AEs either resolved spontaneously within a few days with no adjustment in melatonin, or immediately upon withdrawal of treatment. Melatonin was generally regarded as safe and well tolerated. Many studies predated publication of the CONSORT checklist and consequently did not conform closely to the guidelines. Similarly, only eight studies were judged 'good' overall with respect to the Cochrane risk-of-bias criteria. Of the remaining papers, 16 were considered 'fair' and 13 'poor' but publication of almost half of the papers preceded that of the earliest version of the guidelines. CONCLUSION Few, generally mild to moderate, AEs were associated with exogenous melatonin. No AEs that were life threatening or of major clinical significance were identified. The scarcity of evidence from long-term RCTs, however, limits the conclusions regarding the safety of continuous melatonin therapy over extended periods. There are insufficient robust data to allow a meaningful appraisal of concerns that melatonin may result in more clinically significant adverse effects in potentially at-risk populations. Future studies should be designed to comply with appropriate quality standards for RCTs, which most past studies have not.
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Should Melatonin Be Used as a Sleeping Aid for Elderly People? Can J Hosp Pharm 2019; 72:327-329. [PMID: 31452545 PMCID: PMC6699865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
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Yurova MN, Tyndyk ML, Popovich IG, Golubev AG, Anisimov VN. Gender Specificity of the Effect of Neonatal Melatonin Administration on Lifespan and Age-Associated Pathology in 129/Sv Mice. ADVANCES IN GERONTOLOGY 2019. [DOI: 10.1134/s2079057019030184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Jafari‐Vayghan H, Saleh‐Ghadimi S, Maleki V, Moludi J, Alizadeh M. The effects of melatonin on neurohormonal regulation in cardiac cachexia: A mechanistic review. J Cell Biochem 2019; 120:16340-16351. [DOI: 10.1002/jcb.29151] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 05/15/2019] [Accepted: 05/20/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Hamed Jafari‐Vayghan
- Department of Clinical Nutrition, Faculty of Nutrition and Food Science Tabriz University of Medical Sciences Tabriz Iran
- Nutrition Research Center, Faculty of Nutrition and Food Sciences Tabriz University of Medical Sciences Tabriz Iran
- Student Research Committee Tabriz University of Medical Sciences Tabriz Iran
| | - Sevda Saleh‐Ghadimi
- Student Research Committee Tabriz University of Medical Sciences Tabriz Iran
| | - Vahid Maleki
- Student Research Committee Tabriz University of Medical Sciences Tabriz Iran
| | - Jalal Moludi
- Department of Nutrition, Faculty of Nutrition Sciences and Food Technology Kermanshah University of Medical Sciences Kermanshah Iran
| | - Mohammad Alizadeh
- Department of Clinical Nutrition, Faculty of Nutrition and Food Science Tabriz University of Medical Sciences Tabriz Iran
- Nutrition Research Center, Faculty of Nutrition and Food Sciences Tabriz University of Medical Sciences Tabriz Iran
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Kim LB, Putyatina AN, Russkikh GS, Tsypysheva OB. Melatonin and the Aging Process in Men in the European Part of the Arctic Zone of Russia. ADVANCES IN GERONTOLOGY 2019. [DOI: 10.1134/s2079057019010090] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Gil-Martín E, Egea J, Reiter RJ, Romero A. The emergence of melatonin in oncology: Focus on colorectal cancer. Med Res Rev 2019; 39:2239-2285. [PMID: 30950095 DOI: 10.1002/med.21582] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 03/04/2019] [Accepted: 03/16/2019] [Indexed: 12/17/2022]
Abstract
Within the last few decades, melatonin has increasingly emerged in clinical oncology as a naturally occurring bioactive molecule with substantial anticancer properties and a pharmacological profile optimal for joining the currently available pharmacopeia. In addition, extensive experimental data shows that this chronobiotic agent exerts oncostatic effects throughout all stages of tumor growth, from initial cell transformation to mitigation of malignant progression and metastasis; additionally, melatonin alleviates the side effects and improves the welfare of radio/chemotherapy-treated patients. Thus, the support of clinicians and oncologists for the use of melatonin in both the treatment and proactive prevention of cancer is gaining strength. Because of its epidemiological importance and symptomatic debut in advanced stages of difficult clinical management, colorectal cancer (CRC) is a preferential target for testing new therapies. In this regard, the development of effective forms of clinical intervention for the improvement of CRC outcome, specifically metastatic CRC, is urgent. At the same time, the need to reduce the costs of conventional anti-CRC therapy results is also imperative. In light of this status quo, the therapeutic potential of melatonin, and the direct and indirect critical processes of CRC malignancy it modulates, have aroused much interest. To illuminate the imminent future on CRC research, we focused our attention on the molecular mechanisms underlying the multiple oncostatic actions displayed by melatonin in the onset and evolution of CRC and summarized epidemiological evidence, as well as in vitro, in vivo and clinical findings that support the broadly protective potential demonstrated by melatonin.
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Affiliation(s)
- Emilio Gil-Martín
- Department of Biochemistry, Genetics and Immunology, Biomedical Research Center (CINBIO, 'Centro Singular de Investigación de Galicia'), University of Vigo, Vigo, Spain
| | - Javier Egea
- Molecular Neuroinflammation and Neuronal Plasticity Laboratory, Research Unit, Hospital Universitario Santa Cristina, Madrid, Spain.,Servicio de Farmacología Clínica, Instituto de Investigación Sanitaria, Hospital Universitario de la Princesa, Madrid, Spain.,Departamento de Farmacología y Terapéutica, Instituto-Fundación Teófilo Hernando, Universidad Autónoma de Madrid, Madrid, Spain
| | - Russel J Reiter
- Department of Cellular and Structural Biology, UT Health Science Center, San Antonio, Texas, USA
| | - Alejandro Romero
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Complutense University of Madrid, Madrid, Spain
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Basic and applied science interactions in fatigue understanding and risk mitigation. PROGRESS IN BRAIN RESEARCH 2019; 246:177-204. [DOI: 10.1016/bs.pbr.2019.03.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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45
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Paul MA, Love RJ, Jetly R, Richardson JD, Lanius RA, Miller JC, MacDonald M, Rhind SG. Blunted Nocturnal Salivary Melatonin Secretion Profiles in Military-Related Posttraumatic Stress Disorder. Front Psychiatry 2019; 10:882. [PMID: 31866882 PMCID: PMC6910089 DOI: 10.3389/fpsyt.2019.00882] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 11/08/2019] [Indexed: 12/16/2022] Open
Abstract
Background: Sleep disturbances are a hallmark of posttraumatic stress disorder (PTSD), yet few studies have evaluated the role of dysregulated endogenous melatonin secretion in this condition. Methods: This study compared the sleep quality and nocturnal salivary melatonin profiles of Canadian Armed Forces (CAF) personnel diagnosed with PTSD, using the Clinician Administered PTSD Scale (CAPS score ≥50), with two healthy CAF control groups; comprising, a "light control" (LC) group with standardized evening light exposure and "normal control" (NC) group without light restriction. Participants were monitored for 1-week using wrist actigraphy to assess sleep quality, and 24-h salivary melatonin levels were measured (every 2h) by immunoassay on the penultimate day in a dim-light (< 5 lux) laboratory environment. Results: A repeated measures design showed that mean nocturnal melatonin concentrations for LC were higher than both NC (p = .03) and PTSD (p = .003) with no difference between PTSD and NC. Relative to PTSD, NC had significantly higher melatonin levels over a 4-h period (01 to 05 h), whereas the LC group had higher melatonin levels over an 8-h period (23 to 07 h). Actigraphic sleep quality parameters were not different between healthy controls and PTSD patients, likely due to the use of prescription sleep medications in the PTSD group. Conclusions: These results indicate that PTSD is associated with blunted nocturnal melatonin secretion, which is consistent with previous findings showing lower melatonin after exposure to trauma and suggestive of severe chronodisruption. Future studies targeting the melatonergic system for therapeutic intervention may be beneficial for treatment-resistant PTSD.
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Affiliation(s)
- Michel A Paul
- Defence Research & Development Canada, Toronto Research Centre, Operational Health and Performance Section, Toronto, ON, Canada
| | - Ryan J Love
- Defence Research & Development Canada, Toronto Research Centre, Operational Health and Performance Section, Toronto, ON, Canada
| | - Rakesh Jetly
- Directorate of Mental Health, Canadian Forces Health Services, Ottawa, ON, Canada
| | - J Donald Richardson
- Department of Psychiatry, Western University, London, ON, Canada.,Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada.,Operational Stress Injury Clinic, Parkwood Institute, London, ON, Canada.,MacDonald Franklin Operational Stress Injury Research Centre, Lawson Research Institute, London, ON, Canada
| | - Ruth A Lanius
- Department of Psychiatry, Western University, London, ON, Canada.,Department of Neuroscience, Western University, London, ON, Canada
| | - James C Miller
- Department of Life Sciences, Texas A&M University Corpus Christi, Corpus Christi, TX, United States
| | - Michael MacDonald
- Directorate of Mental Health, Canadian Forces Health Services, Ottawa, ON, Canada
| | - Shawn G Rhind
- Defence Research & Development Canada, Toronto Research Centre, Operational Health and Performance Section, Toronto, ON, Canada
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Abstract
Last year melatonin was 60 years old, or at least its discovery was 60 years ago. The molecule itself may well be almost as old as life itself. So it is time to take yet another perspective on our understanding of its functions, effects and clinical uses. This is not a formal review-there is already a multitude of systematic reviews, narrative reviews, meta-analyses and even reviews of reviews. In view of the extraordinary variety of effects attributed to melatonin in the last 25 years, it is more of an attempt to sort out some areas where a consensus opinion exists, and where placebo controlled, randomized, clinical trials have confirmed early observations on therapeutic uses. The current upsurge of concern about the multiple health problems associated with disturbed circadian rhythms has generated interest in related therapeutic interventions, of which melatonin is one. The present text will consider the physiological role of endogenous melatonin, and the mostly pharmacological effects of exogenous treatment, on the assumption that normal circulating concentrations represent endogenous pineal production. It will concentrate mainly on the most researched, and accepted area of therapeutic use and potential use of melatonin-its undoubted ability to realign circadian rhythms and sleep-since this is the author's bias. It will touch briefly upon some other systems with prominent rhythmic attributes including certain cancers, the cardiovascular system, the entero-insular axis and metabolism together with the use of melatonin to assess circadian status. Many of the ills of the developed world relate to deranged rhythms-and everything is rhythmic unless proved otherwise.
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Affiliation(s)
| | | | - Angela Polanco
- National Cancer Research Institute Childhood Cancer and Leukaemia Clinical Studies Group, London, UK
| | - Bob Phillips
- Centre for Reviews and Dissemination, University of York, York, UK
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48
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Bojková B, Kubatka P, Qaradakhi T, Zulli A, Kajo K. Melatonin May Increase Anticancer Potential of Pleiotropic Drugs. Int J Mol Sci 2018; 19:E3910. [PMID: 30563247 PMCID: PMC6320927 DOI: 10.3390/ijms19123910] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 11/27/2018] [Accepted: 12/03/2018] [Indexed: 12/14/2022] Open
Abstract
Melatonin (N-acetyl-5-methoxytryptamine) is not only a pineal hormone, but also an ubiquitary molecule present in plants and part of our diet. Numerous preclinical and some clinical reports pointed to its multiple beneficial effects including oncostatic properties, and as such, it has become one of the most aspiring goals in cancer prevention/therapy. A link between cancer and inflammation and/or metabolic disorders has been well established and the therapy of these conditions with so-called pleiotropic drugs, which include non-steroidal anti-inflammatory drugs, statins and peroral antidiabetics, modulates a cancer risk too. Adjuvant therapy with melatonin may improve the oncostatic potential of these drugs. Results from preclinical studies are limited though support this hypothesis, which, however, remains to be verified by further research.
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Affiliation(s)
- Bianka Bojková
- Department of Animal Physiology, Institute of Biology and Ecology, Faculty of Science, Pavol Jozef Šafárik University in Košice, Šrobárová 2, 041 54 Košice, Slovak Republic.
| | - Peter Kubatka
- Department of Medical Biology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Malá Hora 4, 036 01 Martin, Slovak Republic.
- Department of Experimental Carcinogenesis, Division of Oncology, Biomedical Center Martin, Jessenius Faculty of Medicine, Comenius University in Bratislava, Malá Hora 4C, 036 01 Martin, Slovak Republic.
| | - Tawar Qaradakhi
- Institute for Health and Sport (IHES), Victoria University, Melbourne, VIC 3011, Australia.
| | - Anthony Zulli
- Institute for Health and Sport (IHES), Victoria University, Melbourne, VIC 3011, Australia.
| | - Karol Kajo
- St. Elisabeth Oncology Institute, Heydukova 10, 811 08 Bratislava, Slovak Republic.
- Biomedical Research Center, Slovak Academy of Sciences, Dúbravská cesta 9, 845 05 Bratislava, Slovak Republic.
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49
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Cipolla-Neto J, Amaral FGD. Melatonin as a Hormone: New Physiological and Clinical Insights. Endocr Rev 2018; 39:990-1028. [PMID: 30215696 DOI: 10.1210/er.2018-00084] [Citation(s) in RCA: 318] [Impact Index Per Article: 53.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 06/21/2018] [Indexed: 02/07/2023]
Abstract
Melatonin is a ubiquitous molecule present in almost every live being from bacteria to humans. In vertebrates, besides being produced in peripheral tissues and acting as an autocrine and paracrine signal, melatonin is centrally synthetized by a neuroendocrine organ, the pineal gland. Independently of the considered species, pineal hormone melatonin is always produced during the night and its production and secretory episode duration are directly dependent on the length of the night. As its production is tightly linked to the light/dark cycle, melatonin main hormonal systemic integrative action is to coordinate behavioral and physiological adaptations to the environmental geophysical day and season. The circadian signal is dependent on its daily production regularity, on the contrast between day and night concentrations, and on specially developed ways of action. During its daily secretory episode, melatonin coordinates the night adaptive physiology through immediate effects and primes the day adaptive responses through prospective effects that will only appear at daytime, when melatonin is absent. Similarly, the annual history of the daily melatonin secretory episode duration primes the central nervous/endocrine system to the seasons to come. Remarkably, maternal melatonin programs the fetuses' behavior and physiology to cope with the environmental light/dark cycle and season after birth. These unique ways of action turn melatonin into a biological time-domain-acting molecule. The present review focuses on the above considerations, proposes a putative classification of clinical melatonin dysfunctions, and discusses general guidelines to the therapeutic use of melatonin.
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Affiliation(s)
- José Cipolla-Neto
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
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50
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Favero G, Moretti E, Bonomini F, Reiter RJ, Rodella LF, Rezzani R. Promising Antineoplastic Actions of Melatonin. Front Pharmacol 2018; 9:1086. [PMID: 30386235 PMCID: PMC6198052 DOI: 10.3389/fphar.2018.01086] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 09/06/2018] [Indexed: 12/19/2022] Open
Abstract
Melatonin is an endogenous indoleamine with an incredible variety of properties and activities. In recent years, an increasing number of studies have investigated this indoleamine’s interaction with cancerous cells. In particular, it seems that melatonin not only has the ability to improve the efficacy of many drugs used in chemotherapy but also has a direct inhibitory action on neoplastic cells. Many publications underlined the ability of melatonin to suppress the proliferation of various cancer cells or to modulate the expression of membrane receptors on these cells, thereby reducing tumor aggressiveness to metastasize. In addition, while melatonin has antiapoptotic actions in normal cells, in many cancer cells it has proapoptotic effects; these dichotomous actions have gained the interest of researchers. The increasing focus on melatonin in the field of oncology and the growing number of studies on this topic require a deep understanding of what we already know about the antineoplastic actions of melatonin. This information would be of value for potential use of melatonin against neoplastic diseases.
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Affiliation(s)
- Gaia Favero
- Anatomy and Physiopathology Division, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Enrico Moretti
- Anatomy and Physiopathology Division, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Francesca Bonomini
- Anatomy and Physiopathology Division, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy.,Interdipartimental University Center of Research "Adaption and Regeneration of Tissues and Organs," University of Brescia, Brescia, Italy
| | - Russel J Reiter
- Department of Cell Systems and Anatomy, UT Health Science Center, San Antonio, TX, United States
| | - Luigi Fabrizio Rodella
- Anatomy and Physiopathology Division, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy.,Interdipartimental University Center of Research "Adaption and Regeneration of Tissues and Organs," University of Brescia, Brescia, Italy
| | - Rita Rezzani
- Anatomy and Physiopathology Division, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy.,Interdipartimental University Center of Research "Adaption and Regeneration of Tissues and Organs," University of Brescia, Brescia, Italy
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