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Angelino S, Longo M, Caruso P, Scappaticcio L, Di Martino N, Di Lorenzo C, Forestiere D, Amoresano Paglionico V, Bellastella G, Ida Maiorino M, Esposito K. Sleep quality and glucose control in adults with type 1 diabetes during the seasonal daylight saving time shifts. Diabetes Res Clin Pract 2024; 217:111859. [PMID: 39299392 DOI: 10.1016/j.diabres.2024.111859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2024] [Revised: 08/26/2024] [Accepted: 09/13/2024] [Indexed: 09/22/2024]
Abstract
AIM There is a bidirectional relationship between glucose control of and sleep quality and timing in type 1 diabetes (T1D). The aim was to investigate the sleep quality and the glucose metrics in people with T1D at the seasonal clock adjustment. METHODS This observational study retrospectively compared the continuous glucose monitoring (CGM) derived metrics and sleep quality observed before (Time 0) and after (Time 1) transition in autumn and before (Time 2) and after (Time 3) transition in spring. We included adults with T1D, treated with CGM systems, who completed the Pittsburgh Sleep Quality Index questionnaire. The main outcome measure was the change in glucose monitoring indicator (GMI), time in range (TIR), time above range (TAR) and time below range. RESULTS Sixty-two participants showed no changes in sleep quality at time transitions. GMI values increased during both time transitions and the percentage of TIR decreased from Time 0 to Time 1 and from Time 2 to Time 3. The percentage of level 2 TAR increased during the observation. CONCLUSIONS At similar level of sleep quality, adults with T1D underwent the worsening of most of CGM-derived glucose control metrics during the transition time.
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Affiliation(s)
- Silvia Angelino
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, Naples, Italy; Unit of Endocrinology and Metabolic Diseases, University Hospital Luigi Vanvitelli, Naples, Italy; PhD Program in Translational Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Miriam Longo
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, Naples, Italy; PhD Program in Translational Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Paola Caruso
- Unit of Endocrinology and Metabolic Diseases, University Hospital Luigi Vanvitelli, Naples, Italy
| | - Lorenzo Scappaticcio
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Nicole Di Martino
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, Naples, Italy; PhD Program in Translational Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Concetta Di Lorenzo
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, Naples, Italy; PhD Program in Translational Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Daniela Forestiere
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, Naples, Italy; PhD Program in Translational Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Vanda Amoresano Paglionico
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, Naples, Italy; Unit of Endocrinology and Metabolic Diseases, University Hospital Luigi Vanvitelli, Naples, Italy
| | - Giuseppe Bellastella
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, Naples, Italy; Unit of Endocrinology and Metabolic Diseases, University Hospital Luigi Vanvitelli, Naples, Italy
| | - Maria Ida Maiorino
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, Naples, Italy; Unit of Endocrinology and Metabolic Diseases, University Hospital Luigi Vanvitelli, Naples, Italy.
| | - Katherine Esposito
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, Naples, Italy; Unit of Endocrinology and Metabolic Diseases, University Hospital Luigi Vanvitelli, Naples, Italy; PhD Program in Translational Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
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Seneff S, Kyriakopoulos AM, Nigh G. Is autism a PIN1 deficiency syndrome? A proposed etiological role for glyphosate. J Neurochem 2024; 168:2124-2146. [PMID: 38808598 DOI: 10.1111/jnc.16140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 05/13/2024] [Accepted: 05/14/2024] [Indexed: 05/30/2024]
Abstract
Autism is a neurodevelopmental disorder, the prevalence of which has increased dramatically in the United States over the past two decades. It is characterized by stereotyped behaviors and impairments in social interaction and communication. In this paper, we present evidence that autism can be viewed as a PIN1 deficiency syndrome. Peptidyl-prolyl cis/trans isomerase, NIMA-Interacting 1 (PIN1) is a peptidyl-prolyl cis/trans isomerase, and it has widespread influences in biological organisms. Broadly speaking, PIN1 deficiency is linked to many neurodegenerative diseases, whereas PIN1 over-expression is linked to cancer. Death-associated protein kinase 1 (DAPK1) strongly inhibits PIN1, and the hormone melatonin inhibits DAPK1. Melatonin deficiency is strongly linked to autism. It has recently been shown that glyphosate exposure to rats inhibits melatonin synthesis as a result of increased glutamate release from glial cells and increased expression of metabotropic glutamate receptors. Glyphosate's inhibition of melatonin leads to a reduction in PIN1 availability in neurons. In this paper, we show that PIN1 deficiency can explain many of the unique morphological features of autism, including increased dendritic spine density, missing or thin corpus callosum, and reduced bone density. We show how PIN1 deficiency disrupts the functioning of powerful high-level signaling molecules, such as nuclear factor erythroid 2-related factor 2 (NRF2) and p53. Dysregulation of both of these proteins has been linked to autism. Severe depletion of glutathione in the brain resulting from chronic exposure to oxidative stressors and extracellular glutamate leads to oxidation of the cysteine residue in PIN1, inactivating the protein and further contributing to PIN1 deficiency. Impaired autophagy leads to increased sensitivity of neurons to ferroptosis. It is imperative that further research be conducted to experimentally validate whether the mechanisms described here take place in response to chronic glyphosate exposure and whether this ultimately leads to autism.
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Affiliation(s)
- Stephanie Seneff
- Computer Science and Artificial Intelligence Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | | | - Greg Nigh
- Immersion Health, Portland, Oregon, USA
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Wang X, Yao X, Sun Z, Jin Y, Yan Z, Jiang H, Ouyang Y, Yuan WE, Wang C, Fan C. An extracellular matrix mimicking alginate hydrogel scaffold manipulates an inflammatory microenvironment and improves peripheral nerve regeneration by controlled melatonin release. J Mater Chem B 2023; 11:11552-11561. [PMID: 37982207 DOI: 10.1039/d3tb01727c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2023]
Abstract
Low efficiency of nerve growth and unstable release of loaded drugs have become a major problem in repairing peripheral nerve injury. Many intervention strategies were focused on simple drug loading, but have still been less effective. The key challenge is to establish a controlled release microenvironment to enable adequate nerve regeneration. In this study, we fabricate a multilayered compound nerve scaffold by electrospinning: with an anti-adhesive outer layer of polycaprolactone and an ECM-like inner layer consisting of a melatonin-loaded alginate hydrogel. We characterized the scaffold, and the loaded melatonin can be found to undergo controlled release. We applied them to a 15 mm rat model of sciatic nerve injury. After 16 weeks, the animals in each group were evaluated and compared for recovery of motor function, electrophysiology, target organ atrophy status, regenerative nerve morphology and relative protein expression levels of neural markers, inflammatory oxidative stress, and angiogenesis. We identify that the scaffold can improve functional ability evidenced by an increased sciatic functional index and nerve electrical conduction level. The antioxidant melatonin loaded in the scaffold reduces inflammation and oxidative stress in the reinnervated nerves, confirmed by increased HO-1 and decreased TNF-α levels in regenerating nerves. The relative expression of fast-type myosin was elevated in the target gastrocnemius muscle. An improvement in angiogenesis facilitates neurite extension and axonal sprouting. This scaffold can effectively restore the ECM-like microenvironment and improve the quality of nerve regeneration by controlled melatonin release, thus enlightening the design criteria on nerve scaffolds for peripheral nerve injury in the future.
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Affiliation(s)
- Xu Wang
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
- Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai, China
- Youth Science and Technology Innovation Studio of Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiangyun Yao
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
- Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai, China
- Youth Science and Technology Innovation Studio of Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ziyang Sun
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
- Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai, China
- Youth Science and Technology Innovation Studio of Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yi Jin
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, and School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China.
| | - Zhiwen Yan
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
- Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai, China
- Youth Science and Technology Innovation Studio of Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Huiquan Jiang
- College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Yuanming Ouyang
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
- Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai, China
- Youth Science and Technology Innovation Studio of Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wei-En Yuan
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, and School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China.
| | - Chunyang Wang
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Cunyi Fan
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
- Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai, China
- Youth Science and Technology Innovation Studio of Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Aluwong T, Sumanu VO, Abdulsalam RA, Emmanuel DS, Ezekiel NG, Aliyu MB, Ayo JO, Ukwenu JO, Yaro JD, Ogbuagu NE. Melatonin and probiotic administration ameliorated hyperglycaemia, oxidative stress, and enhanced cytoprotective effect on beta-cells of diabetic rats. J Diabetes Metab Disord 2023; 22:1537-1549. [PMID: 37975141 PMCID: PMC10638259 DOI: 10.1007/s40200-023-01284-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 08/16/2023] [Indexed: 11/19/2023]
Abstract
Objective The study aimed at investigating the effects of administering melatonin and a probiotic to streptozotocin-induced diabetic rats on hyperglycaemia, oxidative stress biomarkers and beta-cells. Design Type 1 diabetes was induced in 5 months-old male Wistar rats by single intraperitoneal (i.p.) administration of freshly-prepared STZ (60 mg/kg body weight). Six groups of 10 rats were used and treated once daily for six weeks; (1) Healthy control: normal saline only; (2) Pre-treated with Melatonin (MEL); (3) Diabetic control; (4) Diabetic + Treated with MEL; (5) Diabetic + Treated with Probiotic (Prob); (6) Diabetic + Treated with MEL + Prob. Blood glucose, body weight, activities of antioxidant enzymes and malondialdehyde concentration in serum and tissues, reduced glutathione and immunohistochemical assay. Data obtained were expressed as mean ± standard error of the mean (Mean ± SEM) and subjected to ANOVA followed by Tukey's post hoc test. Results Melatonin + Probiotic significantly decreased blood glucose concentrations in diabetic treated rats, compared to the diabetic control rats. MEL + Probiotic increased (p < 0.05) superoxide dismutase activity in serum and liver of diabetic rats. MEL + Probiotic reduced (p < 0.05) malondialdehyde concentration in the serum, liver and kidneys, respectively. MEL + Probiotic treated diabetic rats displayed islets with much greater content of insulin. Conclusion Melatonin + Probiotic combination was more effective in mitigating hyperglycaemia, oxidative stress, and exerted cytoprotective effect on the beta-cells.
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Affiliation(s)
- Tagang Aluwong
- Department of Physiology, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria, Nigeria
| | - Victory Osirimade Sumanu
- Department of Physiology, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria, Nigeria
| | | | - David Smith Emmanuel
- Department of Physiology, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria, Nigeria
| | - Nanyil Gunshin Ezekiel
- Department of Physiology, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria, Nigeria
| | - Muhammad Bello Aliyu
- Department of Physiology, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria, Nigeria
| | - Joseph Olusegun Ayo
- Department of Physiology, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria, Nigeria
| | | | - Jigo Dangude Yaro
- Department of Pathology, Ahmadu Bello University Teaching Hospital, Zaria, Nigeria
| | - Ngozi Ejum Ogbuagu
- Department of Physiology, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria, Nigeria
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Xu Q, Cheung RTF. Melatonin mitigates type 1 diabetes-aggravated cerebral ischemia-reperfusion injury through anti-inflammatory and anti-apoptotic effects. Brain Behav 2023; 13:e3118. [PMID: 37327371 PMCID: PMC10498092 DOI: 10.1002/brb3.3118] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 05/15/2023] [Accepted: 05/31/2023] [Indexed: 06/18/2023] Open
Abstract
INTRODUCTION Cerebral ischemia and diabetes mellitus (DM) are common diseases that often coexist and interact with each other. DM doubles the risk of ischemic stroke, and cerebral ischemia causes stress-induced hyperglycemia. Most experimental stroke studies used healthy animals. Melatonin is neuroprotective against cerebral ischemia-reperfusion injury (CIRI) in non-DM, normoglycemic animals through anti-oxidant effect, anti-inflammation, and anti-apoptosis. Previous studies have also reported a negative correlation between hyperglycemia and urinary melatonin metabolite. OBJECTIVES The present study investigated the effects of type 1 DM (T1DM) on CIRI in rats and the role of melatonin against CIRI in T1DM animals. RESULTS Our results revealed that T1DM aggravated CIRI, leading to greater weight loss, increased infarct volume, and worse neurological deficit. T1DM aggravated the post-CIRI activation of nuclear factor kappa B (NF-κB) pathway and increase in pro-apoptotic markers. A single intraperitoneal injection of melatonin at 10 mg/kg given 30 min before ischemia onset attenuated CIRI in T1DM rats, resulting in less weight loss, decreased infarct volume, and milder neurological deficit when compared with the vehicle group. Melatonin treatment achieved anti-inflammatory and anti-apoptotic effects with reduced NF-κB pathway activation, reduced mitochondrial cytochrome C release, decreased calpain-mediated spectrin breakdown product (SBDP), and decreased caspase-3-mediated SBDP. The treatment also led to fewer iNOS+ cells, milder CD-68+ macrophage/microglia infiltration, decreased TUNEL+ apoptotic cells, and better neuronal survival. CONCLUSIONS T1DM aggravates CIRI. Melatonin treatment is neuroprotective against CIRI in T1DM rats via anti-inflammatory and anti-apoptotic effects.
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Affiliation(s)
- Qian Xu
- Department of Medicine, School of Clinical Medicine, Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong
| | - Raymond Tak Fai Cheung
- Department of Medicine, School of Clinical Medicine, Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong
- Research Centre of Heart, Brain, Hormone & Healthy Aging, Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong
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Wilson JB, Epstein M, Lopez B, Brown AK, Lutfy K, Friedman TC. The role of Neurochemicals, Stress Hormones and Immune System in the Positive Feedback Loops between Diabetes, Obesity and Depression. Front Endocrinol (Lausanne) 2023; 14:1224612. [PMID: 37664841 PMCID: PMC10470111 DOI: 10.3389/fendo.2023.1224612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 07/25/2023] [Indexed: 09/05/2023] Open
Abstract
Type 2 diabetes mellitus (T2DM) and depression are significant public health and socioeconomic issues. They commonly co-occur, with T2DM occurring in 11.3% of the US population, while depression has a prevalence of about 9%, with higher rates among youths. Approximately 31% of patients with T2DM suffer from depressive symptoms, with 11.4% having major depressive disorders, which is twice as high as the prevalence of depression in patients without T2DM. Additionally, over 80% of people with T2DM are overweight or obese. This review describes how T2DM and depression can enhance one another, using the same molecular pathways, by synergistically altering the brain's structure and function and reducing the reward obtained from eating. In this article, we reviewed the evidence that eating, especially high-caloric foods, stimulates the limbic system, initiating Reward Deficiency Syndrome. Analogous to other addictive behaviors, neurochemical changes in those with depression and/or T2DM are thought to cause individuals to increase their food intake to obtain the same reward leading to binge eating, weight gain and obesity. Treating the symptoms of T2DM, such as lowering HbA1c, without addressing the underlying pathways has little chance of eliminating the disease. Targeting the immune system, stress circuit, melatonin, and other alterations may be more effective.
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Affiliation(s)
- Julian B. Wilson
- Department of Internal Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA, United States
| | - Ma’ayan Epstein
- Department of Internal Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA, United States
- Psychiatric Emergency Room, Olive View – University of California, Los Angeles (UCLA) Medical Center, Sylmar, CA, United States
| | - Briana Lopez
- Department of Internal Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA, United States
- Friends Research Institute, Cerritos, CA, United States
| | - Amira K. Brown
- Department of Internal Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA, United States
| | - Kabirullah Lutfy
- Department of Internal Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA, United States
- College of Pharmacy, Western University of Health Sciences, Pomona, CA, United States
| | - Theodore C. Friedman
- Department of Internal Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA, United States
- Friends Research Institute, Cerritos, CA, United States
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Rastmanesh R, Krishnia L, Kashyap MK. The Influence of COVID-19 in Endocrine Research: Critical Overview, Methodological Implications and a Guideline for Future Designs. Clin Med Insights Endocrinol Diabetes 2023; 16:11795514231189073. [PMID: 37529301 PMCID: PMC10387761 DOI: 10.1177/11795514231189073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 06/14/2023] [Indexed: 08/03/2023] Open
Abstract
The COVID-19 pandemic has changed many aspects of people's lives, including not only individual social behavior, healthcare procedures, and altered physiological and pathophysiological responses. As a result, some medical studies may be influenced by one or more hidden factors brought about by the COVID-19 pandemic. Using the literature review method, we are briefly discussing the studies that are confounded by COVID-19 and facemask-induced partiality and how these factors can be further complicated with other confounding variables. Facemask wearing has been reported to produce partiality in studies of ophthalmology (particularly dry eye and related ocular diseases), sleep studies, cognitive studies (such as emotion-recognition accuracy research, etc.), and gender-influenced studies, to mention a few. There is a possibility that some other COVID-19 related influences remain unrecognized in medical research. To account for heterogeneity, current and future studies need to consider the severity of the initial illness (such as diabetes, other endocrine disorders), and COVID-19 infection, the timing of analysis, or the presence of a control group. Face mask-induced influences may confound the results of diabetes studies in many ways.
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Affiliation(s)
| | - Lucky Krishnia
- Amity Centre of Nanotechnology, Amity University Haryana, Panchgaon, Haryana, India
| | - Manoj Kumar Kashyap
- Amity Medical School, Amity Stem Cell Institute, Amity University Haryana, Panchgaon, Haryana, India
- Clinical Biosamples & Research Services (CBRS), Noida, Uttar Pradesh, India
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Griggs S, Irani E, Strohl KP, Al-Kindi S, Rajagopalan S, Crawford SL, Margevicius S, Hickman RL. Sleep health dimensions are associated with next-day symptoms in young adults with type 1 diabetes. Sleep Health 2023; 9:339-345. [PMID: 36567195 PMCID: PMC10287843 DOI: 10.1016/j.sleh.2022.11.002] [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: 05/06/2022] [Revised: 10/06/2022] [Accepted: 11/07/2022] [Indexed: 12/24/2022]
Abstract
OBJECTIVE We investigated intra-individual reciprocal associations between sleep health dimensions (individual and composite) and symptoms among young adults with type 1 diabetes (T1D). DESIGN AND MEASUREMENTS Cross-lagged multilevel models were used to analyze electronic diary-reported sleep and symptom patterns over 7 days at waketime in 42 young adults with T1D. Sleep health dimensions included regularity, satisfaction, alertness, timing, efficiency (percentage of time spent asleep), and duration (total sleep time) and symptoms included mood, fatigue, and pain. Covariates included biological sex and age. SETTING AND PARTICIPANTS We recruited young adults (mean age 21.5 ± 2.1 years, HbA1c 6.8%, 85% female, 10% gender minority) with T1D for at least 6 months and no other major medical or psychiatric comorbidity from social media platforms, the College Diabetes Network, and ResearchMatch. RESULTS On days with a better sleep health composite, participants reported lower next-day symptoms (higher mood, lower fatigue, and lower pain) and on days when participants reported lower symptoms, participants reported better sleep health (as a composite). Several individual sleep health dimensions led to lower next-day symptoms (eg, higher satisfaction, alertness, and efficiency and higher mood); however, symptoms were no longer predictive of next-day sleep when controlling for prior day sleep. CONCLUSIONS Optimal sleep health is an antecedent of fewer next day symptoms. Sleep health dimensions likely have positive additive effects on lower symptoms as some of the individual sleep health dimensions were not significantly associated with some symptoms among young adults with T1D.
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Affiliation(s)
- Stephanie Griggs
- Case Western Reserve University, Frances Payne Bolton School of Nursing, Cleveland, Ohio, USA.
| | - Elliane Irani
- Case Western Reserve University, Frances Payne Bolton School of Nursing, Cleveland, Ohio, USA
| | - Kingman P Strohl
- Case Western Reserve University, School of Medicine, Cleveland, Ohio, USA
| | - Sadeer Al-Kindi
- Center for Vascular Metabolic Disease, School of Medicine, Cleveland, Ohio, USA; Cardiovascular Research Institute, Case Western Reserve University, School of Medicine, Cleveland, Ohio, USA
| | - Sanjay Rajagopalan
- Cardiovascular Research Institute, Case Western Reserve University, School of Medicine, Cleveland, Ohio, USA
| | - Sybil L Crawford
- UMass Chan Medical School, Tan Chingfen Graduate School of Nursing, Worcester, Massachusetts, USA
| | - Seunghee Margevicius
- Department of Population and Quantitative Health Sciences, Case Western Reserve University, Case Comprehensive Cancer Center, School of Medicine, Cleveland, Ohio, USA
| | - Ronald L Hickman
- Case Western Reserve University, Frances Payne Bolton School of Nursing, Cleveland, Ohio, USA
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França DCH, França EL, Sobrevia L, Barbosa AMP, Honorio-França AC, Rudge MVC. Integration of nutrigenomics, melatonin, serotonin and inflammatory cytokines in the pathophysiology of pregnancy-specific urinary incontinence in women with gestational diabetes mellitus. Biochim Biophys Acta Mol Basis Dis 2023; 1869:166737. [PMID: 37146917 DOI: 10.1016/j.bbadis.2023.166737] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/12/2023] [Accepted: 04/27/2023] [Indexed: 05/07/2023]
Abstract
Gestational diabetes mellitus is an important public health problem and has been associated with the development of pregnancy-specific urinary incontinence. The interaction is related to hyperglycemia, and inflammatory and hormonal patterns, which favor functional alterations in different organs and systems. Several genes associated with human diseases have been identified and partially characterized. Most of these genes are known to cause monogenic diseases. However, about 3 % of diseases do not fit the monogenic theory due to the complex interactions between multiple genes and environmental factors, as in chronic metabolic diseases such as diabetes. The nutritional, immunological, and hormonal patterns associated with changes in maternal metabolism may influence and contribute to greater susceptibility to urinary tract disorders. However, early systematic reviews have not yielded consistent findings for these associations. This literature review summarizes important new findings from integrating nutrigenomics, hormones, and cytokines in women with Gestational diabetes mellitus and pregnancy-specific urinary incontinence. Changes in maternal metabolism due to hyperglycemia can generate an inflammatory environment with increased inflammatory cytokines. This environment modulated by inflammation can alter tryptophan uptake through food and thus influence the production of serotonin and melatonin. As these hormones seem to have protective effects against smooth muscle dysfunction and to restore the impaired contractility of the detrusor muscle, it is assumed that these changes may favor the onset of urinary incontinence specific to pregnancy.
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Affiliation(s)
- Danielle Cristina Honorio França
- Department of Gynecology and Obstetrics, Botucatu Medical School (FMB), São Paulo State University (UNESP), Botucatu 18618-687, Brazil.
| | - Eduardo Luzía França
- Institute of Biological and Health Science, Federal University of Mato Grosso (UFMT), Barra do Garças 78605-091, Brazil.
| | - Luis Sobrevia
- Department of Gynecology and Obstetrics, Botucatu Medical School (FMB), São Paulo State University (UNESP), Botucatu 18618-687, Brazil; Cellular and Molecular Physiology Laboratory (CMPL), Department of Obstetrics, Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago 8330024, Chile; Department of Physiology, Faculty of Pharmacy, Universidad de Sevilla, E-41012 Seville, Spain; Faculty of Medicine and Biomedical Sciences, University of Queensland, Herston, QLD 4029, Australia; Department of Pathology and Medical Biology, University of Groningen, 9713GZ Groningen, the Netherlands; Tecnologico de Monterrey, Eutra, The Institute for Obesity Research (IOR), School of Medicine and Health Sciences, Monterrey 64710, Mexico.
| | - Angélica Mércia Pascon Barbosa
- Department of Gynecology and Obstetrics, Botucatu Medical School (FMB), São Paulo State University (UNESP), Botucatu 18618-687, Brazil; Department of Physiotherapy and Occupational Therapy, School of Philosophy and Sciences, São Paulo State University (UNESP), Marilia 17525-900, Brazil
| | | | - Marilza Vieira Cunha Rudge
- Department of Gynecology and Obstetrics, Botucatu Medical School (FMB), São Paulo State University (UNESP), Botucatu 18618-687, Brazil.
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Griggs S, Hernandez E, Bolton PJ, Strohl KP, Grey M, Kashyap SR, Li CSR, Hickman RL. Cognitive Behavioral Sleep Self-Management Intervention for Young Adults With Type 1 Diabetes (NCT04975230). Clin Nurs Res 2023; 32:560-570. [PMID: 36788436 PMCID: PMC10249334 DOI: 10.1177/10547738231154133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
The purpose of this study was to explore perceptions of the first dose of a cognitive behavioral sleep self-management intervention (CB-sleep) among young adults aged 18 to 25 years with type 1 diabetes (T1D). We used a qualitative descriptive approach to conduct in-depth semi-structured focused interviews with a purposive sample of 16 young adults with T1D, transitioning from adolescence to early adulthood. Interviews were audio-recorded, transcribed verbatim, and analyzed using qualitative content analysis. Participants described their sleep knowledge (previous, new, and additional), sleep health goals, along with barriers and facilitators of the CB-sleep intervention. Based on these results, we suggest CB-sleep is a useful modality with the potential to support sleep self-management in young adults with T1D during this complex life transition. Furthermore, CB-sleep could be incorporated into an existing diabetes self-management education and support program after pilot testing and determining efficacy to improve sleep and glycemic health.
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Type I Diabetes Pathoetiology and Pathophysiology: Roles of the Gut Microbiome, Pancreatic Cellular Interactions, and the 'Bystander' Activation of Memory CD8 + T Cells. Int J Mol Sci 2023; 24:ijms24043300. [PMID: 36834709 PMCID: PMC9964837 DOI: 10.3390/ijms24043300] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/27/2023] [Accepted: 01/29/2023] [Indexed: 02/10/2023] Open
Abstract
Type 1 diabetes mellitus (T1DM) arises from the failure of pancreatic β-cells to produce adequate insulin, usually as a consequence of extensive pancreatic β-cell destruction. T1DM is classed as an immune-mediated condition. However, the processes that drive pancreatic β-cell apoptosis remain to be determined, resulting in a failure to prevent ongoing cellular destruction. Alteration in mitochondrial function is clearly the major pathophysiological process underpinning pancreatic β-cell loss in T1DM. As with many medical conditions, there is a growing interest in T1DM as to the role of the gut microbiome, including the interactions of gut bacteria with Candida albicans fungal infection. Gut dysbiosis and gut permeability are intimately associated with raised levels of circulating lipopolysaccharide and suppressed butyrate levels, which can act to dysregulate immune responses and systemic mitochondrial function. This manuscript reviews broad bodies of data on T1DM pathophysiology, highlighting the importance of alterations in the mitochondrial melatonergic pathway of pancreatic β-cells in driving mitochondrial dysfunction. The suppression of mitochondrial melatonin makes pancreatic β-cells susceptible to oxidative stress and dysfunctional mitophagy, partly mediated by the loss of melatonin's induction of PTEN-induced kinase 1 (PINK1), thereby suppressing mitophagy and increasing autoimmune associated major histocompatibility complex (MHC)-1. The immediate precursor to melatonin, N-acetylserotonin (NAS), is a brain-derived neurotrophic factor (BDNF) mimic, via the activation of the BDNF receptor, TrkB. As both the full-length and truncated TrkB play powerful roles in pancreatic β-cell function and survival, NAS is another important aspect of the melatonergic pathway relevant to pancreatic β-cell destruction in T1DM. The incorporation of the mitochondrial melatonergic pathway in T1DM pathophysiology integrates wide bodies of previously disparate data on pancreatic intercellular processes. The suppression of Akkermansia muciniphila, Lactobacillus johnsonii, butyrate, and the shikimate pathway-including by bacteriophages-contributes to not only pancreatic β-cell apoptosis, but also to the bystander activation of CD8+ T cells, which increases their effector function and prevents their deselection in the thymus. The gut microbiome is therefore a significant determinant of the mitochondrial dysfunction driving pancreatic β-cell loss as well as 'autoimmune' effects derived from cytotoxic CD8+ T cells. This has significant future research and treatment implications.
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12
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Farid A, Moussa P, Youssef M, Haytham M, Shamy A, Safwat G. Melatonin relieves diabetic complications and regenerates pancreatic beta cells by the reduction in NF-kB expression in streptozotocin induced diabetic rats. Saudi J Biol Sci 2022; 29:103313. [PMID: 35707823 PMCID: PMC9189213 DOI: 10.1016/j.sjbs.2022.103313] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 04/18/2022] [Accepted: 05/18/2022] [Indexed: 12/25/2022] Open
Abstract
Melatonin, a pleiotropic hormone, has many regulatory effects on the circadian and seasonal rhythms, sleep and body immune system. It is used in the treatment of blind circadian rhythm sleep disorders, delayed sleep phase and insomnia. It is a potent antioxidant, anti-inflammatory, free radical scavenger, helpful in fighting infectious disease and cancer treatment. Decreased level of circulating melatonin was associated with an increased blood glucose level, losing the anti-oxidant protection and anti-inflammatory responses. We aimed to evaluate the effect of melatonin administration, in streptozotocin (STZ) induced diabetic rats, on blood glucose level and pancreatic beta (β) cells. Diabetes mellitus was induced in Sprague dawley male rats by the intravenous (i.v) injection of 65 mg/kg of STZ. Diabetic rats received melatonin at a dose of 10 mg/kg daily for 8 weeks by oral routes. The results showed, after 8 weeks of melatonin administration, a reduction in: 1- fasting blood glucose (FBG) and fructosamine (FTA) levels, 2- kidney and liver function parameters, 3- levels of serum triglycerides, cholesterol and LDL-C, 4- malondialdehyde (MDA), 5- NF-κB expression in treated group, 6- pro-inflammatory cytokines (IL-1β and IL-12) and immunoglobulins (IgA, IgE and IgG). Furthermore, an elevation in insulin secretion was noticed in melatonin treated group that indicated β cells regeneration. Therefore, melatonin administration, in STZ induced diabetic rats; reduced hyperglycemia, hyperlipidemia and oxidative stress. Melatonin acted as an anti-inflammatory agent that reduced pro-inflammatory cytokines (IL-1β and IL-12) and oxidative stress biomarkers (MDA). Melatonin succeeded in protecting β cells under severe inflammatory situations, which was apparent by the regeneration of islets of Langerhans in treated diabetic rats. Moreover, these results can open a gate for diabetes management and treatment.
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Affiliation(s)
- Alyaa Farid
- Zoology Dep., Faculty of Science, Cairo University, Giza, Egypt
| | - Passant Moussa
- Faculty of Biotechnology, October University for Modern Sciences and Arts (MSA), Giza, Egypt
| | - Manar Youssef
- Faculty of Biotechnology, October University for Modern Sciences and Arts (MSA), Giza, Egypt
| | - Merna Haytham
- Faculty of Biotechnology, October University for Modern Sciences and Arts (MSA), Giza, Egypt
| | - Ali Shamy
- Faculty of Biotechnology, October University for Modern Sciences and Arts (MSA), Giza, Egypt
| | - Gehan Safwat
- Faculty of Biotechnology, October University for Modern Sciences and Arts (MSA), Giza, Egypt
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13
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Bisio A, Gonder-Frederick L, McFadden R, Cherñavvsky D, Voelmle M, Pajewski M, Yu P, Bonner H, Brown SA. The Impact of a Recently Approved Automated Insulin Delivery System on Glycemic, Sleep, and Psychosocial Outcomes in Older Adults With Type 1 Diabetes: A Pilot Study. J Diabetes Sci Technol 2022; 16:663-669. [PMID: 33451264 PMCID: PMC9294584 DOI: 10.1177/1932296820986879] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
BACKGROUND Older adults with type 1 diabetes (≥65 years) are often under-represented in clinical trials of automated insulin delivery (AID) systems. We sought to test the efficacy of a recently FDA-approved AID system in this population. METHODS Participants with type 1 diabetes used sensor-augmented pump (SAP) therapy for four weeks and then used an AID system (Control-IQ) for four weeks. In addition to glucose control variables, patient-reported outcomes (PRO) were assessed with questionnaires and sleep parameters were assessed by actigraphy. RESULTS Fifteen older adults (mean age 68.7 ± 3.3, HbA1c of 7.0 ± 0.8) completed the pilot trial. Glycemic outcomes improved during AID compared to SAP. During AID use, mean glucose was 146.0 mg/dL; mean percent time in range (TIR, 70-180 mg/dL) was 79.6%; median time below 70 mg/dL was 1.1%. The AID system was in use 92.6% ± 7.0% of the time. Compared to SAP, while participants were on AID the TIR increased significantly (+10%, P = .002) accompanied by a reduction in both time above 180 mg/dL (-6.9%, P = .005) and below 70 mg/dl (-0.4%, P = .053). Diabetes-related distress decreased significantly while using AID (P = .028), but sleep parameters remained unchanged. CONCLUSIONS Use of this AID system in older adults improved glycemic control with high scores in ease of use, trust, and usability. Participants reported an improvement in diabetes distress with AID use. There were no significant changes in sleep.
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Affiliation(s)
- Alessandro Bisio
- Center for Diabetes Technology,
University of Virginia, Charlottesville, VA, USA
| | - Linda Gonder-Frederick
- Center for Diabetes Technology,
University of Virginia, Charlottesville, VA, USA
- Department of Psychiatry, University of
Virginia, Charlottesville, VA, USA
| | - Ryan McFadden
- Center for Diabetes Technology,
University of Virginia, Charlottesville, VA, USA
| | - Daniel Cherñavvsky
- Center for Diabetes Technology,
University of Virginia, Charlottesville, VA, USA
| | - Mary Voelmle
- Center for Diabetes Technology,
University of Virginia, Charlottesville, VA, USA
- Department of Medicine, Division of
Endocrinology and Metabolism, University of Virginia, Charlottesville, VA, USA
| | - Michael Pajewski
- Center for Diabetes Technology,
University of Virginia, Charlottesville, VA, USA
| | - Pearl Yu
- Department of Pediatrics, University of
Virginia, Charlottesville, VA, USA
| | - Heather Bonner
- Department of Pediatrics, University of
Virginia, Charlottesville, VA, USA
| | - Sue A. Brown
- Center for Diabetes Technology,
University of Virginia, Charlottesville, VA, USA
- Department of Medicine, Division of
Endocrinology and Metabolism, University of Virginia, Charlottesville, VA, USA
- Sue A. Brown, MD, Center for Diabetes
Technology, University of Virginia, P.O. Box 400888, Charlottesville, VA 22908,
USA.
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Valias GR, Gomes PRL, Amaral FG, Alnuaimi S, Monteiro D, O'Sullivan S, Zangaro R, Cipolla-Neto J, Acuna J, Baltatu OC, Campos LA. Urinary Angiotensinogen-Melatonin Ratio in Gestational Diabetes and Preeclampsia. Front Mol Biosci 2022; 9:800638. [PMID: 35309508 PMCID: PMC8924406 DOI: 10.3389/fmolb.2022.800638] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Accepted: 02/04/2022] [Indexed: 12/25/2022] Open
Abstract
Background: A large research portfolio indicates that an activated renal renin-angiotensin system or a deficit on melatonin is associated with several cardiovascular pathologies. In this observational clinical study, we hypothesized that alterations in urinary melatonin or angiotensinogen levels may be altered in two common conditions, preeclampsia and gestational diabetes. Our study’s primary objective was to assess melatonin and angiotensinogen as novel disease biomarkers detectable and quantifiable in the urine of pregnant women with or without pregnancy complications. Methods: This was a concurrent cohort study of pregnant women with selected obstetric pathologies (gestational diabetes, preeclampsia, hypertension and obesity with hypertension). A group of healthy controls was also included. Urinary 6-sulfatoxymelatonin and angiotensinogen were measured by sensitive and specific ELISAs in first morning void urine samples. The patients were included in the cohort consecutively, and the diagnosis was blinded at the level of urine collection. Urinary 6-sulfatoxymelatonin and angiotensinogen levels were investigated in the patients included in the cohort. Results: Urinary levels of angiotensinogen were significantly higher in the gestational diabetes [angiotensinogen/creatinine ratio median (25th, 75th): 0.11 (0.07, 0.18)] and preeclampsia [0.08 (0.06, 0.18)] groups than in those with healthy pregnancy [0.05(0.04, 0.06]; 6-sulfatoxymelatonin levels were significantly lower in the gestational diabetes [ug/h: median (25th, 75th): 0.12(0.08, 0.17)] and preeclampsia [0.12 (0.09, 0.15)] groups than in those with healthy pregnancy [0.20 (0.15, 0.27]. Neither morning void protein/creatinine ratio nor 24-h urine protein estimate were significantly different between the study groups. Conclusion: These results suggest that urinary angiotensinogen levels may indicate an intrarenal RAS activation while melatonin production appears to be defective in gestational diabetes or hypertension. An angiotensinogen/melatonin ratio is suggested as an early biomarker for identification of gestational diabetes or hypertension. This report provides a basis for the potential use of melatonin for the treatment of preeclampsia. A prospective study in a larger number of patients to determine the operative characteristics of these markers as potential diagnostic tests is justified.
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Affiliation(s)
- Gabriela Ribeiro Valias
- Center of Innovation, Technology and Education (CITE) at Anhembi Morumbi University–Anima Institute, Sao Jose dos Campos Technology Park, Sao Jose dos Campos, Brazil
| | | | - Fernanda G. Amaral
- Department of Physiology, Federal University of São Paulo, São Paulo, Brazil
| | - Saif Alnuaimi
- Department of Public Health and Epidemiology, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Daniela Monteiro
- Center of Innovation, Technology and Education (CITE) at Anhembi Morumbi University–Anima Institute, Sao Jose dos Campos Technology Park, Sao Jose dos Campos, Brazil
| | - Siobhán O'Sullivan
- Department of Molecular Biology and Genetics, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Renato Zangaro
- Center of Innovation, Technology and Education (CITE) at Anhembi Morumbi University–Anima Institute, Sao Jose dos Campos Technology Park, Sao Jose dos Campos, Brazil
| | - José Cipolla-Neto
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Juan Acuna
- Department of Public Health and Epidemiology, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Ovidiu Constantin Baltatu
- Center of Innovation, Technology and Education (CITE) at Anhembi Morumbi University–Anima Institute, Sao Jose dos Campos Technology Park, Sao Jose dos Campos, Brazil
- Department of Public Health and Epidemiology, Khalifa University, Abu Dhabi, United Arab Emirates
- *Correspondence: Ovidiu Constantin Baltatu, ; Luciana Aparecida Campos,
| | - Luciana Aparecida Campos
- Center of Innovation, Technology and Education (CITE) at Anhembi Morumbi University–Anima Institute, Sao Jose dos Campos Technology Park, Sao Jose dos Campos, Brazil
- Department of Public Health and Epidemiology, Khalifa University, Abu Dhabi, United Arab Emirates
- *Correspondence: Ovidiu Constantin Baltatu, ; Luciana Aparecida Campos,
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15
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de Souza CAP, Nishino FA, do Amaral FG, Cipolla-Neto J. Pineal Microdialysis. Methods Mol Biol 2022; 2550:63-74. [PMID: 36180678 DOI: 10.1007/978-1-0716-2593-4_9] [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] [Indexed: 06/16/2023]
Abstract
Pineal microdialysis is characterized by the real-time monitoring of melatonin, neurotransmitters, metabolites, and other compounds released by the pineal gland throughout 24 h. It is a technique with great advantages that allows in vivo study of the ongoing pineal gland metabolism. In this chapter, we describe the entire process of pineal microdialysis that includes probe manufacturing, surgical procedure for its implantation, and the sample collection process.
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Affiliation(s)
| | - Fernanda Akane Nishino
- Pineal Neurobiology Lab, Department of Physiology, Federal University of São Paulo, São Paulo, SP, Brazil
| | - Fernanda Gaspar do Amaral
- Pineal Neurobiology Lab, Department of Physiology, Federal University of São Paulo, São Paulo, SP, Brazil.
| | - José Cipolla-Neto
- Laboratory of Neurobiology, Department of Physiology and Biophysics, São Paulo, SP, Brazil
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16
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do Amaral FG, Cipolla-Neto J, Afeche SC. Melatonin Synthesis Enzymes Activity: Radiometric Assays for AANAT, ASMT, and TPH. Methods Mol Biol 2022; 2550:33-43. [PMID: 36180675 DOI: 10.1007/978-1-0716-2593-4_6] [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] [Indexed: 06/16/2023]
Abstract
Melatonin is synthesized and secreted by the pineal gland in mammals. Its synthesis is triggered at night by norepinephrine released in the interstices of the gland. This nocturnal production is dependent on the transcription, translation, and/or activation of the enzymes arylalkylamine-N-acetyltransferase (AANAT), acetylserotonin O-methyltransferase (ASMT), and tryptophan hydroxylase (TPH). In this chapter, the methodology for the analysis of AANAT, ASMT, and TPH activities by radiometric assays will be presented. Several papers were published by our group utilizing these methodologies, evaluating the enzymes modulation by voltage-gated calcium channels, angiotensin II, insulin, anhydroecgonine methyl ester (AEME, crack-cocaine product), ethanol, monosodium glutamate (MSG), signaling pathways such as NFkB, and pathophysiological conditions such as diabetes.
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Affiliation(s)
- Fernanda Gaspar do Amaral
- Pineal Neurobiology Lab, Department of Physiology, Federal University of São Paulo, São Paulo, SP, Brazil
| | - José Cipolla-Neto
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
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17
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Afeche SC, de Piazza Pimentel D, Ferro LF, Cipolla-Neto J. Pineal Cells Dissociation and Culture: Isolated Pinealocytes, Isolated Astrocytes, and Co-culture. Methods Mol Biol 2022; 2550:85-94. [PMID: 36180680 DOI: 10.1007/978-1-0716-2593-4_11] [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] [Indexed: 06/16/2023]
Abstract
Mammalian pineal glands are composed mostly of pinealocytes, which are the melatonin secretory cells, and also importantly of glial cells in special astrocytes. With the aim of studying the interactions between pinealocytes and astrocytes, the methodologies for obtaining and maintaining isolated pinealocytes and astrocytes in culture were standardized, in addition to the co-culture of both cell types. Some works of our group were published on the interactions between isolated astrocytes and pinealocytes from the pineal gland of Wistar rats, considering the modulatory role of glutamate and angiotensin on the synthesis of melatonin. In this chapter, the methodologies for obtaining and maintaining astrocytes and pinealocytes culture as well as co-culture of these two cell types will be presented.
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Affiliation(s)
| | | | - Luís Felipe Ferro
- Department of Occupational Therapy, Federal University of Parana, Curitiba, PR, Brazil
| | - José Cipolla-Neto
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, Sao Paulo, SP, Brazil
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18
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Oliveira-Abreu K, Cipolla-Neto J, Leal-Cardoso JH. Effects of Melatonin on Diabetic Neuropathy and Retinopathy. Int J Mol Sci 2021; 23:100. [PMID: 35008523 PMCID: PMC8744787 DOI: 10.3390/ijms23010100] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/14/2021] [Accepted: 12/16/2021] [Indexed: 12/18/2022] Open
Abstract
Diabetes mellitus (DM) leads to complications, the majority of which are nephropathy, retinopathy, and neuropathy. Redox imbalance and inflammation are important components of the pathophysiology of these complications. Many studies have been conducted to find a specific treatment for these neural complications, and some of them have investigated the therapeutic potential of melatonin (MEL), an anti-inflammatory agent and powerful antioxidant. In the present article, we review studies published over the past 21 years on the therapeutic efficacy of MEL in the treatment of DM-induced neural complications. Reports suggest that there is a real prospect of using MEL as an adjuvant treatment for hypoglycemic agents. However, analysis shows that there is a wide range of approaches regarding the doses used, duration of treatment, and treatment times in relation to the temporal course of DM. This wide range hinders an objective analysis of advances and prospective vision of the paths to be followed for the unequivocal establishment of parameters to be used in an eventual therapeutic validation of MEL in neural complications of DM.
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Affiliation(s)
- Klausen Oliveira-Abreu
- Laboratório de Eletrofisiologia, Instituto Superior de Ciências Biomédicas, Universidade Estadual do Ceará, Fortaleza 60714-903, CE, Brazil;
| | - José Cipolla-Neto
- Laboratório de Neurobiologia, Instituto de Ciências Biomédicas 1, Universidade de São Paulo, Sao Paulo 05508-000, SP, Brazil;
| | - Jose Henrique Leal-Cardoso
- Laboratório de Eletrofisiologia, Instituto Superior de Ciências Biomédicas, Universidade Estadual do Ceará, Fortaleza 60714-903, CE, Brazil;
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19
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Liu L, Cao Q, Gao W, Li BY, Zeng C, Xia Z, Zhao B. Melatonin ameliorates cerebral ischemia-reperfusion injury in diabetic mice by enhancing autophagy via the SIRT1-BMAL1 pathway. FASEB J 2021; 35:e22040. [PMID: 34800293 DOI: 10.1096/fj.202002718rr] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 10/25/2021] [Accepted: 10/29/2021] [Indexed: 12/12/2022]
Abstract
Diabetic brains are more vulnerable to ischemia-reperfusion injury. Previous studies have proved that melatonin could protect against cerebral ischemia-reperfusion (CIR) injury in non-diabetic stroke models; however, its roles and the underlying mechanisms against CIR injury in diabetic mice remain unknown. Streptozotocin-induced diabetic mice and high-glucose-cultured HT22 cells were exposed to melatonin, with or without administration of the autophagy inhibitor 3-methyladenine (3-MA) and the specifically silent information regulator 1 (SIRT1) inhibitor EX527, and then subjected to CIR or oxygen-glucose deprivation/reperfusion operation. We found that diabetic mice showed aggravated brain damage, increased apoptosis and oxidative stress, and deficient autophagy following CIR compared with non-diabetic counterparts. Melatonin treatment exhibited improved histological damage, neurological outcomes, and cerebral infarct size. Intriguingly, melatonin markedly increased cell survival, anti-oxidative and anti-apoptosis effects, and significantly enhanced autophagy. However, these effects were largely attenuated by 3-MA or EX527. Additionally, our cellular experiments demonstrated that melatonin increased the SIRT1-BMAL1 pathway-related proteins' expression in a dose-dependent manner. In conclusion, these results indicate that melatonin treatment can protect against CIR-induced brain damage in diabetic mice, which may be achieved by the autophagy enhancement mediated by the SIRT1-BMAL1 pathway.
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Affiliation(s)
- Lian Liu
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Quan Cao
- Department of Ultrasound Imaging, Renmin Hospital of Wuhan University, Wuhan, China
| | - Wenwei Gao
- Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, China
| | - Bing-Yu Li
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Cheng Zeng
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Zhongyuan Xia
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Bo Zhao
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
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20
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Han T, Jiang W, Wu H, Wei W, Lu J, Lu H, Xu J, Gu W, Guo X, Wang Y, Ruan J, Li Y, Wang Y, Jiang X, Zhao S, Li Y, Sun C. Fetal malnutrition is associated with impairment of endogenous melatonin synthesis in pineal via hypermethylation of promoters of protein kinase C alpha and cAMP response element-binding. J Pineal Res 2021; 71:e12764. [PMID: 34486775 DOI: 10.1111/jpi.12764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 07/26/2021] [Accepted: 08/20/2021] [Indexed: 11/29/2022]
Abstract
This study investigated whether and how fetal malnutrition would influence endogenous melatonin synthesis, and whether such effect of fetal malnutrition would transmit to the next generation. We enrolled 2466 participants and 1313 of their offspring. The urine 6-hydroxymelatonin sulfate and serum melatonin rhythm were measured. Methylation microarray detection and bioinformatics analysis were performed to identify hub methylated sites. Additionally, rat experiment was performed to elucidate mechanisms. The participants with fetal malnutrition had lower 6-hydroxymelatonin sulfate (16.59 ± 10.12 μg/24 hours vs 24.29 ± 11.99 μg/24 hours, P < .001) and arear under curve of melatonin rhythm (67.11 ± 8.16 pg/mL vs 77.11 ± 8.04 pg/mL, P < .001). We identified 961 differentially methylated sites, in which the hub methylated sites were locating on protein kinase C alpha (PRKCA) and cAMP response element-binding protein (CREB1) promoters, mediating the association of fetal malnutrition with impaired melatonin secretion. However, such effects were not observed in the offspring (all P > .05). Impaired histomorphology of pineal, decreased melatonin in serum, pineal, and pinealocyte were also found in the in vivo and in vitro experiments (P < .05 for the differences of the indicators). Hypermethylation of 10 CpG sites on the PRKCA promoter and 8 CpG sites on the CREB1 promoter were identified (all P < .05), which down-regulated PRKCA and CREB1 expressions, leading to decreased expression of AANAT, and then resulting in the impaired melatonin synthesis. Collectively, fetal malnutrition can impair melatonin synthesis through hypermethylation of PRKCA and CREB1 promoters, and such effects cannot be transmitted to the next generation.
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Affiliation(s)
- Tianshu Han
- Department of Nutrition and Food Hygiene, School of Public Health, National Key Discipline, Harbin Medical University, Harbin, China
| | - Wenbo Jiang
- Department of Nutrition and Food Hygiene, School of Public Health, National Key Discipline, Harbin Medical University, Harbin, China
| | - Huanyu Wu
- Department of Nutrition and Food Hygiene, School of Public Health, National Key Discipline, Harbin Medical University, Harbin, China
| | - Wei Wei
- Department of Nutrition and Food Hygiene, School of Public Health, National Key Discipline, Harbin Medical University, Harbin, China
| | - Jiang Lu
- National Center for Food Safety Risk Assessment, Beijing, China
| | - Huimin Lu
- Department of Nutrition and Food Hygiene, School of Public Health, National Key Discipline, Harbin Medical University, Harbin, China
| | - Jiaxu Xu
- Department of Nutrition and Food Hygiene, School of Public Health, National Key Discipline, Harbin Medical University, Harbin, China
| | - Wenbo Gu
- Department of Nutrition and Food Hygiene, School of Public Health, National Key Discipline, Harbin Medical University, Harbin, China
| | - Xiaoyu Guo
- Department of Nutrition and Food Hygiene, School of Public Health, National Key Discipline, Harbin Medical University, Harbin, China
| | - Yu Wang
- Department of Nutrition and Food Hygiene, School of Public Health, National Key Discipline, Harbin Medical University, Harbin, China
| | - Jingqi Ruan
- Department of Nutrition and Food Hygiene, School of Public Health, National Key Discipline, Harbin Medical University, Harbin, China
| | - Yunong Li
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yuxin Wang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xitao Jiang
- College of Engineering, IT and Environment, Charles Darwin University, Darwin, NT, Australia
| | - Shengnan Zhao
- Department of Nutrition and Food Hygiene, School of Public Health, National Key Discipline, Harbin Medical University, Harbin, China
| | - Ying Li
- Department of Nutrition and Food Hygiene, School of Public Health, National Key Discipline, Harbin Medical University, Harbin, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Harbin Medical University, Harbin, China
- NHC Key Laboratory of Cell Translation, Harbin Medical University, Harbin, China
| | - Changhao Sun
- Department of Nutrition and Food Hygiene, School of Public Health, National Key Discipline, Harbin Medical University, Harbin, China
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21
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Salah NY, Abido AY, Rashed HR. Relationship of glycaemic derangement using continuous glucose monitoring system with sleep pattern among children with type 1 diabetes. Diabetes Metab Res Rev 2021; 37:e3407. [PMID: 32935448 DOI: 10.1002/dmrr.3407] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 07/25/2020] [Accepted: 08/24/2020] [Indexed: 12/23/2022]
Abstract
BACKGROUND Glycaemic derangement has been linked to sleep disruption. However, the impact of glycaemic derangement on sleep pattern among children with type 1 diabetes (C-T1D) remains unraveled. AIM To assess the effect of nocturnal hyperglycaemia and clinically significant (CS) hypoglycaemia on sleep pattern among C-T1D. METHODOLOGY Thirty C-T1D were compared to 30 age and sex matched healthy siblings. Patients having other organ disease that might cause sleep disorders or on medications causing sleep disturbance were excluded. History included diabetes-duration, type and dose of insulin therapy, chronic diabetic-complications, and manifestations of sleep disorders. Epworth Sleepiness Scale-Child Adolescent was used. Continuous glucose monitoring system (CGMS) and overnight polysomnography were done and analysed. RESULTS C-T1D had significantly lower sleep efficiency and significantly higher arousal index (AI), periodic limb movement index and apnoea-hypopnoea index compared to controls. Moreover, they had significantly longer sleep-onset latency, light sleep percentage, and shorter rapid eye movement percentage than controls. According to nocturnal CGMS readings, 15 C-T1D had nocturnal hyperglycaemia (50%), six experienced CS hypoglycaemia (20%), two had level-1 hypoglycaemia (6.7%), and seven were within the normoglycaemic range (23.3%). C-T1D experiencing nocturnal CS hypoglycaemia had significantly higher stage 3 sleep (P = 0.004) than controls. On the other hand, C- T1D experiencing nocturnal hyperglycaemia had significantly higher sleep onset latency (P = 0.013), light sleep percentage (P < 0.001), and AI (P < 0.001) than controls. Nocturnal CS hypoglycaemia was positively correlated to deep sleep duration, while hyperglycaemia was correlated to number of awakenings, sleep-onset latency, and light sleep duration. CONCLUSION In children with T1D CS hypoglycaemia is associated with sleep deepening, while hyperglycaemia is associated with increased light sleep, sleep onset latency.
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Affiliation(s)
- Nouran Y Salah
- Department of Pediatrics, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Amal Y Abido
- General Practitioner, Health Insurance Hospital, Giza, Egypt
| | - Hebatallah R Rashed
- Department of Neurology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
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22
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Dial AG, Monaco CMF, Grafham GK, Patel TP, Tarnopolsky MA, Hawke TJ. Impaired Function and Altered Morphology in the Skeletal Muscles of Adult Men and Women With Type 1 Diabetes. J Clin Endocrinol Metab 2021; 106:2405-2422. [PMID: 33890059 DOI: 10.1210/clinem/dgab261] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Indexed: 12/14/2022]
Abstract
CONTEXT Previous investigations on skeletal muscle health in type 1 diabetes (T1D) have generally focused on later stages of disease progression where comorbidities are present and are posited as a primary mechanism of muscle dysfunction. OBJECTIVE To investigate skeletal muscle function and morphology across the adult lifespan in those with and without T1D. DESIGN Participants underwent maximal contraction (MVC) testing, resting muscle biopsy, and venous blood sampling. SETTING Procedures in this study were undertaken at the McMaster University Medical Centre. PARTICIPANTS Sixty-five healthy adult (18-78 years old) men/males and women/females (T1D = 34; control = 31) matched for age/biological sex/body mass index; self-reported physical activity levels were included. MAIN OUTCOME MEASURES Our primary measure in this study was MVC, with supporting histological/immunofluorescent measures. RESULTS After 35 years of age ("older adults"), MVC declined quicker in T1D subjects compared to controls. Loss of strength in T1D was accompanied by morphological changes associated with accelerated aging. Type 1 myofiber grouping was higher in T1D, and the groups were larger and more numerous than in controls. Older T1D females exhibited more myofibers expressing multiple myosin heavy chain isoforms (hybrid fibers) than controls, another feature of accelerated aging. Conversely, T1D males exhibited a shift toward type 2 fibers, with less evidence of myofiber grouping or hybrid fibers. CONCLUSIONS These data suggest impairments to skeletal muscle function and morphology exist in T1D. The decline in strength with T1D is accelerated after 35 years of age and may be responsible for the earlier onset of frailty, which characterizes those with diabetes.
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Affiliation(s)
- Athan G Dial
- Dept of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
| | - Cynthia M F Monaco
- Dept of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
| | - Grace K Grafham
- Dept of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
| | - Tirth P Patel
- Dept of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
| | | | - Thomas J Hawke
- Dept of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
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23
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Griggs S, Strohl KP, Grey M, Barbato E, Margevicius S, Hickman RL. Circadian characteristics of the rest-activity rhythm, executive function, and glucose fluctuations in young adults with type 1 diabetes. Chronobiol Int 2021; 38:1477-1487. [PMID: 34128443 DOI: 10.1080/07420528.2021.1932987] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Circadian alignment is an important element in individual health, and one behavioral marker, rest-activity rhythm, could influence self-management in young adults with type 1 diabetes (T1D). Little is known about the rest-activity rhythms, executive function, and glycemia among young adults with type 1 diabetes (T1D). The purpose of this study was to evaluate parametric and nonparametric circadian characteristics of the rest-activity rhythm and the associations between these variables, sleep-wake behavior, executive function, and glycemia among young adults with T1D. Young adults with T1D, recruited from diabetes clinics, wore wrist actigraphs and a continuous glucose monitor (CGM) concurrently for 6-14 days. Participants completed a 3-minute Trail Making Test on paper and electronic questionnaires - 8-item PROMIS v1.0 Emotional Distress Scale, 17-item Diabetes Distress Scale, including twice-daily Pittsburgh sleep diaries. Cosinor and nonparametric analyses were used to compute the rest-activity rhythm parameters, and linear regression modeling procedures were performed to determine the associations among the study variables. The sample included 46 young adults (mean age 22.3 ± 3.2; 32.6% male; 84.8% non-Hispanic White, HbA1c mean 7.2 ± 1.1%, BMI mean 27.0 ± 4.4 kg/m2). A number of parametric associations were observed between a stronger rhythm, better objective sleep-wake characteristics, and less daytime sleepiness. Nonparametric circadian parameters were significantly associated with several outcomes: a stronger rhythm adherence (higher inter-daily stability) with better objective sleep-wake characteristics, better executive function, lower diabetes distress, less hyperglycemia risk, and more time spent in hypoglycemia/hypoglycemia risk; and a more robust rhythm (higher relative amplitude) with better objective sleep-wake characteristics and more time spent in hypoglycemia/higher hypoglycemia risk. Future work should be directed at designs that test causality, such as interventions directed at the strength and stability of rest-activity rhythms, for the potential to improve glucoregulation and other diabetes outcomes.
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Affiliation(s)
- Stephanie Griggs
- Frances Payne Bolton School of Nursing, Case Western Reserve University, Cleveland, Ohio, USA
| | - Kingman P Strohl
- Department of Physiology and Biophysics, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
| | - Margaret Grey
- School of Nursing and School of Medicine, Yale University, West Haven, Connecticut, USA
| | - Eric Barbato
- Department of Genetics and Genome Sciences, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
| | - Seunghee Margevicius
- Department of Population and Quantitative Health Sciences, School of Medicine, Cleveland, Ohio, USA
| | - Ronald L Hickman
- Frances Payne Bolton School of Nursing, Case Western Reserve University, Cleveland, Ohio, USA
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24
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Bisio A, Brown SA, McFadden R, Pajewski M, Yu PL, DeBoer M, Schoelwer MJ, Bonner HG, Wakeman CA, Cherñavvsky DR, Gonder-Frederick L. Sleep and diabetes-specific psycho-behavioral outcomes of a new automated insulin delivery system in young children with type 1 diabetes and their parents. Pediatr Diabetes 2021; 22:495-502. [PMID: 33289242 DOI: 10.1111/pedi.13164] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 11/03/2020] [Accepted: 11/11/2020] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND Data on the use of Control-IQ, the latest FDA-approved automated insulin delivery (AID) system for people with T1D 6 years of age or older is still scarce, particularly regarding nonglycemic outcomes. Children with T1D and their parents are at higher risk for sleep disturbances. This study assesses sleep, psycho-behavioral and glycemic outcomes of AID compared to sensor-augmented pump therapy (SAP) therapy in young children with T1D and their parents. METHODS Thirteen parents and their young children (ages 7-10) on insulin pump therapy were enrolled. Children completed an initial 4-week study with SAP using their own pump and a study CGM followed by a 4-week phase of AID. Sleep outcomes for parents and children were evaluated through actigraphy watches. Several questionnaires were administered at baseline and at the end of each study phase. CGM data were used to assess glycemic outcomes. RESULTS Actigraphy data did not show any significant change from SAP to AID, except a reduction of number of parental awakenings during the night (p = 0.036). Parents reported statistically significant improvements in Pittsburgh Sleep Quality Index total score (p = 0.009), Hypoglycemia Fear Survey total score (p = 0.011), diabetes-related distress (p = 0.032), and depression (p = 0.023). While on AID, time in range (70-180 mg/dL) significantly increased compared to SAP (p < 0.001), accompanied by a reduction in hyperglycemia (p = 0.001). CONCLUSIONS These results suggest that use of AID has a positive impact on glycemic outcomes in young children as well as sleep and diabetes-specific quality of life outcomes in their parents.
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Affiliation(s)
- Alessandro Bisio
- Center for Diabetes Technology, University of Virginia, Charlottesville, Virginia, USA
| | - Sue A Brown
- Center for Diabetes Technology, University of Virginia, Charlottesville, Virginia, USA.,Department of Medicine, Division of Endocrinology and Metabolism, University of Virginia, Charlottesville, Virginia, USA
| | - Ryan McFadden
- Center for Diabetes Technology, University of Virginia, Charlottesville, Virginia, USA
| | - Michael Pajewski
- Center for Diabetes Technology, University of Virginia, Charlottesville, Virginia, USA
| | - Pearl L Yu
- Department of Pediatrics, University of Virginia, Charlottesville, Virginia, USA.,Sleep Disorder Center, University of Virginia, Charlottesville, Virginia, USA
| | - Mark DeBoer
- Center for Diabetes Technology, University of Virginia, Charlottesville, Virginia, USA.,Department of Pediatrics, University of Virginia, Charlottesville, Virginia, USA
| | - Melissa J Schoelwer
- Center for Diabetes Technology, University of Virginia, Charlottesville, Virginia, USA.,Department of Pediatrics, University of Virginia, Charlottesville, Virginia, USA
| | - Heather G Bonner
- Sleep Disorder Center, University of Virginia, Charlottesville, Virginia, USA
| | - Christian A Wakeman
- Center for Diabetes Technology, University of Virginia, Charlottesville, Virginia, USA
| | - Daniel R Cherñavvsky
- Center for Diabetes Technology, University of Virginia, Charlottesville, Virginia, USA.,Department of Psychiatry, University of Virginia, Charlottesville, Virginia, USA
| | - Linda Gonder-Frederick
- Center for Diabetes Technology, University of Virginia, Charlottesville, Virginia, USA.,Department of Psychiatry, University of Virginia, Charlottesville, Virginia, USA
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25
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Bleak TC, Calaf GM. Breast and prostate glands affected by environmental substances (Review). Oncol Rep 2021; 45:20. [PMID: 33649835 PMCID: PMC7879422 DOI: 10.3892/or.2021.7971] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 01/08/2021] [Indexed: 12/17/2022] Open
Abstract
Environmental endocrine disruptor chemicals are substances that can alter the homeostasis of the endocrine system in living organisms. They can be released from several products used in daily activities. Once in the organism, they can disrupt the endocrine function by mimicking or blocking naturally occurring hormones due to their similar chemical structure. This endocrine disruption is the most important cause of the well‑known hormone‑associate types of cancer. Additionally, it is decisive to determine the susceptibility of each organ to these compounds. Therefore, the present review aimed to summarize the effect of different environmental substances such as bisphenol A, dichlorodiphenyltrichloroethane and polychlorinated biphenyls in both the mammary and the prostate tissues. These organs were chosen due to their association with the hormonal system and their common features in carcinogenic mechanisms. Outcomes derived from the present review may provide evidence that should be considered in future debates regarding the effects of endocrine disruptors on carcinogenesis.
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Affiliation(s)
- Tammy C. Bleak
- Instituto de Alta Investigación, Universidad de Tarapacá, Arica, Arica 1000000, Chile
| | - Gloria M. Calaf
- Instituto de Alta Investigación, Universidad de Tarapacá, Arica, Arica 1000000, Chile
- Center for Radiological Research, Columbia University Medical Center, New York, NY 10032, USA
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26
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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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Tanaka K, Okada Y, Maiko H, Mori H, Tanaka Y. Associations between urinary 6-sulfatoxymelatonin excretion and diabetic vascular complications or arteriosclerosis in patients with type 2 diabetes. J Diabetes Investig 2020; 12:601-609. [PMID: 33460308 PMCID: PMC8015816 DOI: 10.1111/jdi.13374] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 07/14/2020] [Accepted: 07/16/2020] [Indexed: 11/29/2022] Open
Abstract
AIMS/INTRODUCTION There are limited reports on the association between melatonin levels and vascular complications in patients with type 2 diabetes. The aim of this study was to determine the association between urinary 6-sulfatoxymelatonin, which is a urinary metabolite of melatonin, and diabetic vascular complications or arteriosclerosis in patients with type 2 diabetes. MATERIALS AND METHODS This retrospective study included patients (167 patients with type 2 diabetes and 27 patients without diabetes adjusted for age and sex) admitted to the hospital who underwent measurement of urinary 6-sulfatoxymelatonin. The urinary 6-sulfatoxymelatonin/creatinine ratio (6-SMT) was calculated. RESULTS The natural logarithmically scaled 6-SMT level (Ln 6-SMT) was significantly lower in type 2 diabetes patients (1.9 ± 1.1) compared with patients without diabetes (2.8 ± 1.0, P < 0.001). Multivariate linear regression analysis identified duration of diabetes, smoking status, urinary albumin-to-creatinine ratio, retinopathy and coronary heart disease as factors that could influence Ln 6-SMT levels in type 2 diabetes patients (R2 = 0.232, P < 0.001). Ln 6-SMT was associated with decreased odds of diabetic retinopathy, even after adjustment for various confounding factors (odds ratio 0.559, 95% confidence interval 0.369-0.846, P = 0.006). Similarly, Ln 6-SMT was associated with decreased odds of coronary heart disease (odds ratio 0.442, P = 0.030). CONCLUSIONS Our results showed the presence of low levels of Ln 6-SMT in type 2 diabetes patients relative to patients without diabetes. Furthermore, Ln 6-SMT is an independent risk factor of diabetic retinopathy and coronary heart diseases. These findings suggest that 6-SMT could be a useful biomarker for the prediction of micro- and macrovasculopathies in patients with type 2 diabetes.
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Affiliation(s)
- Kenichi Tanaka
- First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Yosuke Okada
- First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Hajime Maiko
- First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Hiroko Mori
- First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Yoshiya Tanaka
- First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
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28
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Afsar B, Elsurer Afsar R, Sag AA, Kanbay A, Korkmaz H, Cipolla-Neto J, Covic A, Ortiz A, Kanbay M. Sweet dreams: therapeutic insights, targeting imaging and physiologic evidence linking sleep, melatonin and diabetic nephropathy. Clin Kidney J 2020; 13:522-530. [PMID: 32905249 PMCID: PMC7467577 DOI: 10.1093/ckj/sfz198] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 12/16/2019] [Indexed: 12/25/2022] Open
Abstract
Melatonin is the main biochronologic molecular mediator of circadian rhythm and sleep. It is also a powerful antioxidant and has roles in other physiologic pathways. Melatonin deficiency is associated with metabolic derangements including glucose and cholesterol dysregulation, hypertension, disordered sleep and even cancer, likely due to altered immunity. Diabetic nephropathy (DN) is a key microvascular complication of both type 1 and 2 diabetes. DN is the end result of a complex combination of metabolic, haemodynamic, oxidative and inflammatory factors. Interestingly, these same factors have been linked to melatonin deficiency. This report will collate in a clinician-oriented fashion the mechanistic link between melatonin deficiency and factors contributing to DN.
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Affiliation(s)
- Baris Afsar
- Division of Nephrology, Department of Medicine, Suleyman Demirel University School of Medicine, Isparta, Turkey
| | - Rengin Elsurer Afsar
- Division of Nephrology, Department of Medicine, Suleyman Demirel University School of Medicine, Isparta, Turkey
| | - Alan A Sag
- Division of Vascular and Interventional Radiology, Department of Radiology, Duke University Medical Center, Durham, NC, USA
| | - Asiye Kanbay
- Department of Pulmonary Medicine, Istanbul Medeniyet University School of Medicine, Istanbul, Turkey
| | - Hakan Korkmaz
- Division of Endocrinology, Department of Medicine, Suleyman Demirel University School of Medicine, Isparta, Turkey
| | - José Cipolla-Neto
- Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Adrian Covic
- Dialysis Unit, School of Medicine, IIS-Fundacion Jimenez Diaz, Universidad Autónoma de Madrid, Madrid, Spain
| | - Alberto Ortiz
- Nephrology Clinic, Dialysis and Renal Transplant Center, ‘C.I. PARHON’ University Hospital and ‘Grigore T. Popa’ University of Medicine, Iasi, Romania
| | - Mehmet Kanbay
- Division of Nephrology, Department of Medicine, Koç University School of Medicine, Istanbul, Turkey
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29
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Barone MTU, Ngongo B, Menna-Barreto L. Sleep-wake cycle impairment adding on the risk for COVID-19 severity in people with diabetes. Sleep Sci 2020; 13:191-194. [PMID: 33381286 PMCID: PMC7755262 DOI: 10.5935/1984-0063.20200038] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 07/14/2020] [Indexed: 01/16/2023] Open
Abstract
In the present article, we explore the risks of circadian disruptions and impact on the sleep-wake cycle of individuals with diabetes during COVID-19 pandemic. The association between the duration and quality of sleep and the stability of glucose levels is well-established. Therefore, during the pandemic with changes and limitations in the exposure to cyclic cues that entrain the circadian rhythms, such as light-dark and social interactions, we hypothesize that the power and stability of circadian rhythms decrease if measures are not taken to intentionally create a routine that includes zeitgebers. Knowing that sleep-wake cycle disruptions impair melatonin production, immune system response and glucose metabolism, and that individuals with diabetes are at higher risk for poor prognosis when infected by SARS-CoV-2 (especially if their blood glucose is out of target), we recommend monitoring and advising these individuals towards strategies to maintain adequate sleep quality and duration as part of their preventive and protective measures during the new pandemic routine.
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Affiliation(s)
- Mark Thomaz Ugliara Barone
- International Diabetes Federation (IDF), Board of Directors - Brussels - Brussels - Belgium
- ADJ Diabetes Brasil, Research and Education - Sao Paulo - SP - Brazil
- Fórum Intersetorial para Combate às DCNTs no Brasil (FórumDCNTs), General Management - Sao Paulo - SP - Brazil
- Sociedade Brasileira de Diabetes (SBD), Education - Sao Paulo - SP - Brazil
| | - Belinda Ngongo
- Pan African Women in Health (PAWH), Founder - Johannesburg - Gauteng - South Africa
| | - Luiz Menna-Barreto
- Escola de Artes, Ciências e Humanidades - Universidade de Sao Paulo (EACH-USP), Grupo Multidisciplinar de Desenvolvimento e Ritmos Biológicos (GMDRB) - Sao Paulo - SP - Brazil
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30
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Nefs GM, Bazelmans E, Donga E, Tack CJ, de Galan BE. Sweet dreams or bitter nightmare: a narrative review of 25 years of research on the role of sleep in diabetes and the contributions of behavioural science. Diabet Med 2020; 37:418-426. [PMID: 31833083 DOI: 10.1111/dme.14211] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/10/2019] [Indexed: 12/12/2022]
Abstract
The aim of this review was to provide an overview of developments, clinical implications and gaps in knowledge regarding the relationship between diabetes and sleep over the past 25 years, with special focus on contributions from the behavioural sciences. Multiple prospective observational and experimental studies have shown a link between suboptimal sleep and impaired glucose tolerance, decreased insulin sensitivity and the development of type 2 diabetes. While prevalence rates of suboptimal sleep vary widely according to definition, assessment and sample, suboptimal subjective sleep quality appears to be a common reality for one-third of people with type 1 diabetes and over half of people with type 2 diabetes. Both physiological and psychosocial factors may impair sleep in these groups. In turn, suboptimal sleep can negatively affect glycaemic outcomes directly or indirectly via suboptimal daytime functioning (energy, mood, cognition) and self-care behaviours. Technological devices supporting diabetes self-care may have both negative and positive effects. Diabetes and its treatment also affect the sleep of significant others. Research on the merits of interventions aimed at improving sleep for people with diabetes is in its infancy. Diabetes and sleep appear to be reciprocally related. Discussion of sleep deserves a central place in regular diabetes care. Multi-day, multi-method studies may shed more light on the complex relationship between sleep and diabetes at an individual level. Intervention studies are warranted to examine the potential of sleep interventions in improving outcomes for people with diabetes.
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MESH Headings
- Behavioral Sciences/history
- Behavioral Sciences/methods
- Behavioral Sciences/trends
- Blood Glucose/physiology
- Diabetes Mellitus/blood
- Diabetes Mellitus/etiology
- Diabetes Mellitus/physiopathology
- Diabetes Mellitus/psychology
- Diabetes Mellitus, Type 1/blood
- Diabetes Mellitus, Type 1/complications
- Diabetes Mellitus, Type 1/epidemiology
- Diabetes Mellitus, Type 1/physiopathology
- Diabetes Mellitus, Type 2/blood
- Diabetes Mellitus, Type 2/complications
- Diabetes Mellitus, Type 2/epidemiology
- Diabetes Mellitus, Type 2/physiopathology
- History, 20th Century
- History, 21st Century
- Humans
- Prevalence
- Sleep/physiology
- Sleep Wake Disorders/complications
- Sleep Wake Disorders/epidemiology
- Time Factors
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Affiliation(s)
- G M Nefs
- Department of Medical Psychology, Radboud Institute for Health Sciences, Radboud University Medical Centre, Nijmegen, The Netherlands
- Department of Medical and Clinical Psychology, Tilburg University, Centre of Research on Psychological and Somatic Disorders (CoRPS), Tilburg, The Netherlands
- Diabeter, National Treatment and Research Centre for Children, Adolescents and Young Adults with Type 1 Diabetes, Rotterdam, The Netherlands
| | - E Bazelmans
- Department of Medical Psychology, Radboud Institute for Health Sciences, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - E Donga
- Elisabeth-TweeSteden Hospital, Tilburg, The Netherlands
| | - C J Tack
- Department of Internal Medicine, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - B E de Galan
- Department of Internal Medicine, Radboud University Medical Centre, Nijmegen, The Netherlands
- Department of Internal Medicine, Maastricht UMC+, Maastricht, The Netherlands
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31
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Kamsrijai U, Wongchitrat P, Nopparat C, Satayavivad J, Govitrapong P. Melatonin attenuates streptozotocin-induced Alzheimer-like features in hyperglycemic rats. Neurochem Int 2020; 132:104601. [DOI: 10.1016/j.neuint.2019.104601] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 10/17/2019] [Accepted: 11/11/2019] [Indexed: 12/15/2022]
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32
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Mok JX, Ooi JH, Ng KY, Koh RY, Chye SM. A new prospective on the role of melatonin in diabetes and its complications. Horm Mol Biol Clin Investig 2019; 40:/j/hmbci.ahead-of-print/hmbci-2019-0036/hmbci-2019-0036.xml. [PMID: 31693492 DOI: 10.1515/hmbci-2019-0036] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 10/01/2019] [Indexed: 01/01/2023]
Abstract
Melatonin is a hormone secreted by the pineal gland under the control of the circadian rhythm, and is released in the dark and suppressed during the day. In the past decades, melatonin has been considered to be used in the treatment for diabetes mellitus (DM). This is due to a functional inter-relationship between melatonin and insulin. Elevated oxidative stress is a feature found in DM associated with diabetic neuropathy (DN), retinopathy (DR), nephropathy and cardiovascular disease. Reactive oxygen species (ROS) and nitrogen oxidative species (NOS) are usually produced in massive amounts via glucose and lipid peroxidation, and this leads to diabetic complications. At the molecular level, ROS causes damage to the biomolecules and triggers apoptosis. Melatonin, as an antioxidant and a free radical scavenger, ameliorates oxidative stress caused by ROS and NOS. Besides that, melatonin administration is proven to bring other anti-DM effects such as reducing cellular apoptosis and promoting the production of antioxidants.
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Affiliation(s)
- Jia Xin Mok
- School of Medical Laboratory Science, University of Otago, Dunedin 9054, New Zealand.,University of Otago, Dunedin School of Medicine, Department of Pathology, Medical Laboratory Science, Dunedin 9016, New Zealand
| | - Jack Hau Ooi
- International Medical University, School of Health Science, Kuala Lumpur 57000, Malaysia
| | - Khuen Yen Ng
- Monash University Malaysia, School of Pharmacy, Selangor 47500, Malaysia
| | - Rhun Yian Koh
- International Medical University, School of Health Science, Kuala Lumpur 57000, Malaysia
| | - Soi Moi Chye
- International Medical University, School of Health Science, Kuala Lumpur 57000, Malaysia.,School of Health Science, Division of Biomedical Science and Biotechnology, International Medical University, No. 126, Jalan Jalil Perkasa 19, Bukit Jalil, 57000 Kuala Lumpur, Malaysia, Phone: +60-3-27317220, Fax: +06-3-86567229
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de Souza CAP, Gallo CC, de Camargo LS, de Carvalho PVV, Olesçuck IF, Macedo F, da Cunha FM, Cipolla-Neto J, do Amaral FG. Melatonin multiple effects on brown adipose tissue molecular machinery. J Pineal Res 2019; 66:e12549. [PMID: 30597601 DOI: 10.1111/jpi.12549] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 12/18/2018] [Accepted: 12/18/2018] [Indexed: 12/20/2022]
Abstract
Brown adipose tissue (BAT) influences energy balance through nonshivering thermogenesis, and its metabolism daily and seasonal variations are regulated by melatonin through partially known mechanisms. We evaluated the role of melatonin in BAT molecular machinery of male Control, pinealectomized (PINX), and melatonin-treated pinealectomized (PINX/Mel) adult rats. BAT was collected either every 3 hours over 24 hours or after cold or high-fat diet (HFD) acute exposure. HFD PINX animals presented decreased Dio2 expression, while HFD PINX/Mel animals showed increased Dio2, Ucp1, and Cidea expression. Cold-exposed PINX rats showed decreased Dio2 and Lhs expression, and melatonin treatment augmented Adrβ3, Dio2, Ucp1, and Cidea expression. Daily profiles analyses showed altered Dio2, Lhs, Ucp1, Pgc1α, and Cidea gene and UCP1 protein expression in PINX animals, leading to altered rhythmicity under sub-thermoneutral conditions, which was partially restored by melatonin treatment. The same was observed for mitochondrial complexes I, II, and IV protein expression and enzyme activity. Melatonin absence seems to impair BAT responses to metabolic challenges, and melatonin replacement reverses this effect, with additional increase in the expression of crucial genes, suggesting that melatonin plays an important role in several key points of the thermogenic activation pathway, influencing both the rhythmic profile of the tissue and its ability to respond to metabolic challenges, which is crucial for the organism homeostasis.
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Affiliation(s)
- Caroline A P de Souza
- Pineal Neurobiology Lab, Department of Physiology, Federal University of São Paulo, São Paulo, Brazil
| | - Camila Congentino Gallo
- Pineal Neurobiology Lab, Department of Physiology, Federal University of São Paulo, São Paulo, Brazil
| | | | | | - Ingrid Fernandes Olesçuck
- Pineal Neurobiology Lab, Department of Physiology, Federal University of São Paulo, São Paulo, Brazil
| | - Felipe Macedo
- Department of Biochemistry, Federal University of São Paulo, São Paulo, Brazil
| | | | - José Cipolla-Neto
- Laboratory of Neurobiology, Department of Physiology and Biophysics, University of São Paulo, São Paulo, Brazil
| | - Fernanda G do Amaral
- Pineal Neurobiology Lab, Department of Physiology, Federal University of São Paulo, São Paulo, Brazil
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Olukole SG, Lanipekun DO, Ola-Davies EO, Oke BO. Melatonin attenuates bisphenol A-induced toxicity of the adrenal gland of Wistar rats. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:5971-5982. [PMID: 30613877 DOI: 10.1007/s11356-018-4024-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 12/17/2018] [Indexed: 06/09/2023]
Abstract
This study investigated the role of melatonin (MLT) on adrenal gland toxicity induced by bisphenol A (BPA). Adult male rats were divided into four groups of seven animals each: Group I (control) received oral 0.2 ml canola oil; group II received intra-peritoneal 10 mg/kg BW/day MLT; and group III received oral BPA (10 mg/kg BW/day). Group IV rats were treated with same dose of BPA as group III with a concomitant intra-peritoneal 10 mg/kg BW/day MLT. All treatments lasted for 14 days. BPA significantly increased (P < 0.05) adrenal index, circulating levels of corticosterone and adrenocorticotropic hormone (ACTH) in the rats. BPA caused marked vascular congestion, hyperplasia, cellular distortion, increased lipid peroxidation, decreased antioxidant enzymes, and decreased expression of αSmooth muscle actin as well as vimentin proteins. The concomitant treatment with MLT ameliorated these BPA-induced alterations. It is likely that melatonin attenuates BPA-induced alterations of the adrenal gland of rats through the antioxidant defense mechanism.
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Amaral FGD, Cipolla-Neto J. A brief review about melatonin, a pineal hormone. ARCHIVES OF ENDOCRINOLOGY AND METABOLISM 2018; 62:472-479. [PMID: 30304113 PMCID: PMC10118741 DOI: 10.20945/2359-3997000000066] [Citation(s) in RCA: 190] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 08/31/2018] [Indexed: 11/23/2022]
Abstract
Melatonin is a ubiquitous molecule in nature, being locally synthesized in several cells and tissues, besides being a hormone that is centrally produced in the pineal gland of vertebrates, particularly in mammals. Its pineal synthesis is timed by the suprachiasmatic nucleus, that is synchronized to the light-dark cycle via the retinohypothalamic tract, placing melatonin synthesis at night, provided its dark. This unique trait turns melatonin into an internal synchronizer that adequately times the organism's physiology to the daily and seasonal demands. Besides being amphiphilic, melatonin presents specific mechanisms and ways of action devoted to its role as a time-giving agent, being widely spread in the organism. The present review aims to focus on melatonin as a pineal hormone with specific mechanisms and ways of action, besides presenting the clinical syndromes related to its synthesis and/or function disruptions.
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Affiliation(s)
| | - José Cipolla-Neto
- Departamento de Fisiologia e Biofísica, Instituto de Ciências Biomédicas, Universidade de São Paulo (USP), São Paulo, SP, Brasil
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Characterization of abnormal sleep patterns in patients with obesity, type 2 diabetes, or combined. ALEXANDRIA JOURNAL OF MEDICINE 2018. [DOI: 10.1016/j.ajme.2017.10.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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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: 328] [Impact Index Per Article: 54.7] [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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Qian Y, Han Q, Zhao X, Song J, Cheng Y, Fang Z, Ouyang Y, Yuan WE, Fan C. 3D melatonin nerve scaffold reduces oxidative stress and inflammation and increases autophagy in peripheral nerve regeneration. J Pineal Res 2018; 65:e12516. [PMID: 29935084 DOI: 10.1111/jpi.12516] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 06/13/2018] [Accepted: 06/15/2018] [Indexed: 12/15/2022]
Abstract
Peripheral nerve defect is a common and severe kind of injury in traumatic accidents. Melatonin can improve peripheral nerve recovery by inhibiting oxidative stress and inflammation after traumatic insults. In addition, it triggers autophagy pathways to increase regenerated nerve proliferation and to reduce apoptosis. In this study, we fabricated a melatonin-controlled-release scaffold to cure long-range nerve defects for the first time. 3D manufacture of melatonin/polycaprolactone nerve guide conduit increased Schwann cell proliferation and neural expression in vitro and promoted functional, electrophysiological and morphological nerve regeneration in vivo. Melatonin nerve guide conduit ameliorated immune milieu by reducing oxidative stress, inflammation and mitochondrial dysfunction. In addition, it activated autophagy to restore ideal microenvironment, to provide energy for nerves and to reduce nerve cell apoptosis, thus facilitating nerve debris clearance and neural proliferation. This innovative scaffold will have huge significance in the nerve engineering.
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Affiliation(s)
- Yun Qian
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Qixin Han
- Center for Reproductive Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China
| | - Xiaotian Zhao
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Jialin Song
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yuan Cheng
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Zhiwei Fang
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Yuanming Ouyang
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
- Shanghai Sixth People's Hospital East Affiliated to Shanghai University of Medicine & Health Sciences, Shanghai, China
| | - Wei-En Yuan
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Cunyi Fan
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
- Shanghai Sixth People's Hospital East Affiliated to Shanghai University of Medicine & Health Sciences, Shanghai, China
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Lewczuk B, Prusik M, Ziółkowska N, Dąbrowski M, Martniuk K, Hanuszewska M, Zielonka Ł. Effects of Streptozotocin-Induced Diabetes on the Pineal Gland in the Domestic Pig. Int J Mol Sci 2018; 19:ijms19103077. [PMID: 30304775 PMCID: PMC6213590 DOI: 10.3390/ijms19103077] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 09/11/2018] [Accepted: 10/05/2018] [Indexed: 02/07/2023] Open
Abstract
Several observations from experiments in rodents and human patients suggest that diabetes affects pineal gland function, including melatonin secretion; however, the accumulated data are not consistent. The aim of the present study was to determine the effects of streptozotocin-induced diabetes on the pineal gland in the domestic pig, a species widely used as a model in various biomedical studies. The study was performed on 10 juvenile pigs, which were divided into two groups: control and diabetic. Diabetes was evoked by administration of streptozotocin (150 mg/kg of body weight). After six weeks, the animals were euthanized between 12.00 and 14.00, and the pineal glands were removed and divided into two equal parts, which were used for biochemical analyses and for preparation of explants for the superfusion culture. The pineal contents (per 100 μg protein) of serotonin, 5-hydroxyindole acetic acid, 5-hydroxytryptophol, 5-methoxyindole acetic acid, 5-methoxytryptophol, and 5-methoxytryptamine were significantly lower in diabetic pigs than in control pigs. In contrast, the level of N-acetylserotonin was significantly higher in diabetic animals. No significant differences were found in the level of melatonin between control and experimental pigs. The amounts of 3,4-dihydroxyphenylalanine, dopamine, norepinephrine, and 3,4-dihydroxyphenylacetic acid were significantly lower in the pineal glands of diabetic animals. The level of vanillylmandelic acid was higher in diabetic pigs. No differences were observed in the level of basal and NE-stimulated release of N-acetylserotonin or melatonin between the pineal explants prepared from control and experimental animals. In vitro treatment with insulin was ineffective. In conclusion, streptozotocin-induced diabetes affects both indole metabolism and adrenergic neurotransmission in the pig pineal gland.
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Affiliation(s)
- Bogdan Lewczuk
- Department of Histology and Embryology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-719 Olsztyn, Poland.
| | - Magdalena Prusik
- Department of Histology and Embryology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-719 Olsztyn, Poland.
| | - Natalia Ziółkowska
- Department of Histology and Embryology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-719 Olsztyn, Poland.
| | - Michał Dąbrowski
- Department of Veterinary Prevention and Feed Hygiene, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-719 Olsztyn, Poland.
| | - Kamila Martniuk
- Department of Histology and Embryology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-719 Olsztyn, Poland.
| | - Maria Hanuszewska
- Department of Histology and Embryology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-719 Olsztyn, Poland.
| | - Łukasz Zielonka
- Department of Veterinary Prevention and Feed Hygiene, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-719 Olsztyn, Poland.
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Olukole SG, Ajani SO, Ola-Davies EO, Lanipekun DO, Aina OO, Oyeyemi MO, Oke BO. Melatonin ameliorates bisphenol A-induced perturbations of the prostate gland of adult Wistar rats. Biomed Pharmacother 2018; 105:73-82. [PMID: 29843047 DOI: 10.1016/j.biopha.2018.05.125] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 05/22/2018] [Accepted: 05/23/2018] [Indexed: 02/04/2023] Open
Abstract
Bisphenol A (BPA) is an endocrine disrupting chemical (EDC) that has been demonstrated to induce alterations in reproductive organs while melatonin (ML), an antioxidant, present in plants and animals, is capable of protecting against EDC-induced alterations. Adult male Wistar rats (average weight, 240 + 10 g) were divided into four groups of ten animals each: Rats in group I (control) received oral 0.2 ml 1% dimethyl sulfoxide (DMSO)/99% canola oil as vehicle; group II received intra-peritoneal 10 mg/kg BW/day ML. Group III received oral BPA dissolved in DMSO and solubilized in canola oil at 10 mg/kg BW/day. Group IV were treated with same dose of BPA as group III with a concomitant intra-peritoneal 10 mg/kg BW/day ML. All treatments lasted for 14 days. BPA significantly increased the prostatic index of the rats while ML ameliorated it. BPA significantly increased serum levels of estrogen as well as prostate-specific antigen but decreased serum testosterone in the rats while concomitant treatment with ML ameliorated these alterations. Also, BPA caused vascular congestion, hyperplasia (functional, reactive and atypical) of prostatic epithelium as well as tubular atrophy the rats while ML attenuated the observed lesions. Decreased localization of αSmooth muscle actin, vimentin and S100 proteins were observed in the BPA-treated rats while these decreases were ameliorated by ML. The present study has shown that sub-acute oral administration of BPA induced alterations in prostatic index, serum hormone levels, down-regulated protein localization and induced morphological lesions of the prostate gland in rats while concomitant treatment with intra-peritoneal ML ameliorated these conditions. Hence, low dose of ML can protect against BPA-induced toxicity of the prostate gland of rats.
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Affiliation(s)
- Samuel Gbadebo Olukole
- Department of Veterinary Anatomy, Faculty of Veterinary Medicine, University of Ibadan, Nigeria.
| | - Samuel Olumide Ajani
- Department of Theriogenology, Faculty of Veterinary Medicine, University of Ibadan, Nigeria
| | - Eunice Olufunke Ola-Davies
- Department of Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Ibadan, Nigeria
| | | | | | | | - Bankole Olusiji Oke
- Department of Veterinary Anatomy, Faculty of Veterinary Medicine, University of Ibadan, Nigeria
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Oliveira-Abreu K, Ferreira-da-Silva FW, Silva-Alves KSD, Silva-Dos-Santos NM, Cardoso-Teixeira AC, Amaral FGD, Cipolla-Neto J, Leal-Cardoso JH. Melatonin decreases neuronal excitability in a sub-population of dorsal root ganglion neurons. Brain Res 2018; 1692:1-8. [PMID: 29702086 DOI: 10.1016/j.brainres.2018.04.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 04/10/2018] [Accepted: 04/23/2018] [Indexed: 12/29/2022]
Abstract
Melatonin, a powerful antioxidant, participates in the regulation of important physiological and pathological processes. We investigated the actions of melatonin on neuronal excitability of intact dorsal root ganglions (DRG) from rats using intracellular recording techniques in current clamps. Melatonin blocked the generation of action potentials in a concentration-dependent manner. Bath applied melatonin (1.0-1000.0 nM) hyperpolarized the resting membrane potential, and increased the input resistance and rheobase. Melatonin also altered the active electrophysiological properties of the action potential, amplitude and maximum descendant inclination, in a statistically significant way. In order to provide evidence on the mechanism of action of melatonin in the DRG, quantitative PCR (qPCR) was performed. Analyses were performed for melatonin membrane receptors, MT1 and MT2, and it was observed that the DRG expresses MT1 receptors. In addition, we noted that the melatonin-induced effects were blocked in the presence of luzindole, a melatonin receptor antagonist. The minimal effective concentrations of melatonin (10.0 nM) and the blockade of effects caused by luzindole suggest that the effects of melatonin are hormonal, and are induced when it binds to MT1 receptors.
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Affiliation(s)
- Klausen Oliveira-Abreu
- Laboratório de Eletrofisiologia, Instituto Superior de Ciências Biomédicas, Universidade Estadual do Ceará, Fortaleza, CE, Brazil
| | | | - Kerly Shamyra da Silva-Alves
- Laboratório de Eletrofisiologia, Instituto Superior de Ciências Biomédicas, Universidade Estadual do Ceará, Fortaleza, CE, Brazil
| | - Nathalia Maria Silva-Dos-Santos
- Laboratório de Eletrofisiologia, Instituto Superior de Ciências Biomédicas, Universidade Estadual do Ceará, Fortaleza, CE, Brazil
| | - Ana Carolina Cardoso-Teixeira
- Laboratório de Eletrofisiologia, Instituto Superior de Ciências Biomédicas, Universidade Estadual do Ceará, Fortaleza, CE, Brazil
| | - Fernanda Gaspar do Amaral
- Laboratório de Neurobiologia, Instituto de Ciências Biomédicas 1, Universidade de São Paulo, São Paulo, SP, Brazil
| | - José Cipolla-Neto
- Laboratório de Neurobiologia, Instituto de Ciências Biomédicas 1, Universidade de São Paulo, São Paulo, SP, Brazil
| | - José Henrique Leal-Cardoso
- Laboratório de Eletrofisiologia, Instituto Superior de Ciências Biomédicas, Universidade Estadual do Ceará, Fortaleza, CE, Brazil.
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Chen D, Li YP, Yu YX, Zhou T, Liu C, Fei EK, Gao F, Mu CC, Ren HG, Wang GH. Dendritic cell nuclear protein-1 regulates melatonin biosynthesis by binding to BMAL1 and inhibiting the transcription of N-acetyltransferase in C6 cells. Acta Pharmacol Sin 2018; 39:597-606. [PMID: 29219947 PMCID: PMC5888688 DOI: 10.1038/aps.2017.163] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Accepted: 09/12/2017] [Indexed: 02/07/2023] Open
Abstract
Dendritic cell nuclear protein-1 (DCNP1) is a protein associated with major depression. In the brains of depression patients, DCNP1 is up-regulated. However, how DCNP1 participates in the pathogenesis of major depression remains unknown. In this study, we first transfected HEK293 cells with EGFP-DCNP1 and demonstrated that the full-length DCNP1 protein was localized in the nucleus, and RRK (the residues 117-119) composed its nuclear localization signal (NLS). An RRK-deletion form of DCNP1 (DCNP1ΔRRK) and truncated form (DCNP11-116), each lacking the RRK residues, did not show the specific nuclear localization like full-length DCNP1 in the cells. A rat glioma cell line C6 can synthesize melatonin, a hormone that plays important roles in both sleep and depression. We then revealed that transfection of C6 cells with full-length DCNP1 but not DCNP1ΔRRK or DCNP11-116 significantly decreased the levels of melatonin. Furthermore, overexpression of full-length DCNP1, but not DCNP1ΔRRK or DCNP11-116, in C6 cells significantly decreased both the mRNA and protein levels of N-acetyltransferase (NAT), a key enzyme in melatonin synthesis. Full-length DCNP1 but not DCNP1ΔRRK or DCNP11-116 was detected to interact with the Nat promoter and inhibited its activity through its E-box motif. Furthermore, full-length DCNP1 but not the mutants interacted with and repressed the transcriptional activity of BMAL1, a transcription factor that transactivates Nat through the E-box motif. In conclusion, we have shown that RRK (the residues 117-119) are the NLS responsible for DCNP1 nuclear localization. Nuclear DCNP1 represses NAT expression and melatonin biosynthesis by interacting with BMAL1 and repressing its transcriptional activity. Our study reveals a connection between the major depression candidate protein DCNP1, circadian system and melatonin biosynthesis, which may contribute to the pathogenesis of depression.
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Affiliation(s)
- Dong Chen
- Laboratory of Molecular Neuropathology, Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Yi-pei Li
- Laboratory of Molecular Neuropathology, Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Yan-xia Yu
- Department of Pharmacy, Suzhou Hospital Affiliated with Nanjing Medical University, Suzhou 215002, China
| | - Tian Zhou
- Medical School of Nanchang University, Nanchang 330031, China
| | - Chao Liu
- Department of Histology and Embryology, School of Basic Medical Science, Anhui Medical University, Hefei 230032, China
| | - Er-kang Fei
- Laboratory of Synapse Development and Plasticity, Institute of Life Science, Nanchang University, Nanchang 330031, China
| | - Feng Gao
- Laboratory of Molecular Neuropathology, Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Chen-chen Mu
- Laboratory of Molecular Neuropathology, Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Hai-gang Ren
- Laboratory of Molecular Neuropathology, Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Guang-hui Wang
- Laboratory of Molecular Neuropathology, Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
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Combined treatment with melatonin and insulin improves glycemic control, white adipose tissue metabolism and reproductive axis of diabetic male rats. Life Sci 2018; 199:158-166. [PMID: 29501522 DOI: 10.1016/j.lfs.2018.02.040] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 02/14/2018] [Accepted: 02/26/2018] [Indexed: 01/27/2023]
Abstract
AIMS Melatonin treatment has been reported to be capable of ameliorating metabolic diabetes-related abnormalities but also to cause hypogonadism in rats. We investigated whether the combined treatment with melatonin and insulin can improve insulin resistance and other metabolic disorders in rats with streptozotocin-induced diabetes during neonatal period and the repercussion of this treatment on the hypothalamic-pituitary-gonadal axis. MAIN METHODS At the fourth week of age, diabetic animals started an 8-wk treatment with only melatonin (0.2 mg/kg body weight) added to drinking water at night or associated with insulin (NHP, 1.5 U/100 g/day) or only insulin. Animals were then euthanized, and the subcutaneous (SC), epididymal (EP), and retroperitoneal (RP) fat pads were excised, weighed and processed for adipocyte isolation for morphometric analysis as well as for measuring glucose uptake, oxidation, and incorporation of glucose into lipids. Hypothalamus was collected for gene expression and blood samples were collected for biochemical assays. KEY FINDINGS The treatment with melatonin plus insulin (MI) was capable of maintaining glycemic control. In epididymal (EP) and subcutaneous (SC) adipocytes, the melatonin plus insulin (MI) treatment group recovered the insulin responsiveness. In the hypothalamus, melatonin treatment alone promoted a significant reduction in kisspeptin-1, neurokinin B and androgen receptor mRNA levels, in relation to control group. SIGNIFICANCE Combined treatment with melatonin and insulin promoted a better glycemic control, improving insulin sensitivity in white adipose tissue (WAT). Indeed, melatonin treatment reduced hypothalamic genes related to reproductive function.
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Effects of Melatonin on Glucose Homeostasis, Antioxidant Ability, and Adipokine Secretion in ICR Mice with NA/STZ-Induced Hyperglycemia. Nutrients 2017; 9:nu9111187. [PMID: 29109369 PMCID: PMC5707659 DOI: 10.3390/nu9111187] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 10/04/2017] [Accepted: 10/26/2017] [Indexed: 01/04/2023] Open
Abstract
Diabetes is often associated with decreased melatonin level. The aim was to investigate the effects of different dosage of melatonin on glucose hemostasis, antioxidant ability and adipokines secretion in diabetic institute for cancer research (ICR) mice. Forty animals were randomly divided into five groups including control (C), diabetic (D), low-dosage (L), medium-dosage (M), and high-dosage (H) groups. Groups L, M, and H, respectively, received oral melatonin at 10, 20, and 50 mg/kg of BW (body weight) daily after inducing hyperglycemia by nicotinamide (NA)/ streptozotocin (STZ). After the six-week intervention, results showed that melatonin administration increased insulin level and performed lower area under the curve (AUC) in H group (p < 0.05). Melatonin could lower hepatic Malondialdehyde (MDA) level in all melatonin-treated groups and increase superoxide dismutase activity in H group (p < 0.05). Melatonin-treated groups revealed significant higher adiponectin in L group, and lower leptin/adiponectin ratio and leptin in M and H groups (p < 0.05). Melatonin could lower cholesterol and triglyceride in liver and decrease plasma cholesterol and low-density lipoprotein-cholesterol (LDL-C) in L group, and increase plasma high-density lipoprotein-cholesterol (HDL-C) in H group (p < 0.05). Above all, melatonin could decrease oxidative stress, increase the adiponectin level and improve dyslipidemia, especially in H group. These data support melatonin possibly being a helpful aid for treating hyperglycemia-related symptoms.
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Yap TWC, Leow AHR, Azmi AN, Callahan DL, Perez-Perez GI, Loke MF, Goh KL, Vadivelu J. Global Fecal and Plasma Metabolic Dynamics Related to Helicobacter pylori Eradication. Front Microbiol 2017; 8:536. [PMID: 28424674 PMCID: PMC5371670 DOI: 10.3389/fmicb.2017.00536] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Accepted: 03/14/2017] [Indexed: 12/20/2022] Open
Abstract
Background:Helicobacter pylori colonizes the gastric mucosa of more than half of the world's population. There is increasing evidence H. pylori protects against the development of obesity and childhood asthma/allergies in which the development of these diseases coincide with transient dysbiosis. However, the mechanism underlying the association of H. pylori eradication with human metabolic and immunological disorders is not well-established. In this study, we aimed to investigate the local and systemic effects of H. pylori eradication through untargeted fecal lipidomics and plasma metabolomics approaches by liquid chromatography mass spectrometry (LC-MS). Results: Our study revealed that eradication of H. pylori eradication (i.e., loss of H. pylori and/or H. pylori eradication therapy) changed many global metabolite/lipid features, with the majority being down-regulated. Our findings primarily show that H. pylori eradication affects the host energy and lipid metabolism which may eventually lead to the development of metabolic disorders. Conclusion: These predictive metabolic signatures of metabolic and immunological disorders following H. pylori eradication can provide insights into dynamic local and systemic metabolism related to H. pylori eradication in modulating human health.
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Affiliation(s)
- Theresa Wan-Chen Yap
- Department of Medical Microbiology, Faculty of Medicine, University of MalayaKuala Lumpur, Malaysia
| | - Alex Hwong-Ruey Leow
- Department of Medicine, Faculty of Medicine, University of MalayaKuala Lumpur, Malaysia
| | - Ahmad Najib Azmi
- Department of Medicine, Faculty of Medicine, University of MalayaKuala Lumpur, Malaysia.,Faculty of Medicine and Health Sciences, Universiti Sains Islam MalaysiaKuala Lumpur, Malaysia
| | - Damien L Callahan
- Centre for Chemistry and Biotechnology, School of Life and Environmental Sciences, Deakin UniversityGeelong, VIC, Australia
| | - Guillermo I Perez-Perez
- Department of Medicine, New York University School of MedicineNew York, NY, USA.,Department of Microbiology, New York University School of MedicineNew York, NY, USA
| | - Mun-Fai Loke
- Department of Medical Microbiology, Faculty of Medicine, University of MalayaKuala Lumpur, Malaysia.,Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of SingaporeSingapore, Singapore
| | - Khean-Lee Goh
- Department of Medicine, Faculty of Medicine, University of MalayaKuala Lumpur, Malaysia
| | - Jamuna Vadivelu
- Department of Medical Microbiology, Faculty of Medicine, University of MalayaKuala Lumpur, Malaysia
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Balci Yuce H, Akbulut N, Ocakli S, Kayir O, Elmastas M. The effect of commercial conjugated linoleic acid products on experimental periodontitis and diabetes mellitus in Wistar rats. Acta Odontol Scand 2017; 75:21-29. [PMID: 27897090 DOI: 10.1080/00016357.2016.1244355] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
OBJECTIVE The aim of present study was to determine the effects of conjugated linoleic acid enriched milk on alveolar bone loss, hyperglycaemia, oxidative stress and apoptosis in ligature-induced periodontal disease in diabetic rat model. METHODS Wistar rats were divided into six experimental groups: 1; non-ligated (NL, n = 6) group, 2; ligature only (LO, n = 6) group, 3; streptozotocin only (STZ, n = 8) group, 4; STZ and ligature (STZ + L, n = 8) group, 5; ligature and conjugated linoleic acid (CLA) (L + CLA, n = 8) group, 6; STZ, ligature and CLA group (STZ + L + CLA, n = 8) group. Diabetes mellitus was induced by 60 mg/kg streptozotocin. Rats were fed with CLA enriched milk for four weeks. Silk ligatures were placed at the gingival margin of lower first molars of mandibular quadrant. The study duration was four weeks after diabetes induction and the animals were sacrificed at the end of this period. Changes in alveolar bone levels were clinically measured and tissues were histopathologically examined. Inducible nitric oxide synthase (iNOS) and Bax protein expressions, serum interleukin-1β (IL-1β), low-density lipoprotein (LDL), high-density lipoprotein (HDL) and triglyceride levels and tartrate resistant acid phosphatase (TRAP)+ osteoclast numbers were also evaluated. RESULTS At the end of four weeks, alveolar bone loss was significantly higher in the STZ + LO group compared to the other groups (p < .05). CLA decreased alveolar bone loss in L + CLA and STZ + L + CLA groups. CLA significantly decreased TRAP + osteoclast numbers and increased osteoblastic activity compared to the STZ + L group (p < .05). Diabetes and CLA increased Bax protein levels (p < .05) however CLA had no effect on iNOS expression (p > .05). CONCLUSION Within the limits of this study, commercial CLA product administration in addition to diet significantly reduced alveolar bone loss, increased osteoblastic activity and decreased osteoclastic activity in the diabetic Wistar rats.
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Sun B, Zhao H, Liu X, Lu Q, Zhao X, Pu J, Xu J. Elevated hemoglobin A1c Is Associated with Carotid Plaque Vulnerability: Novel Findings from Magnetic Resonance Imaging Study in Hypertensive Stroke Patients. Sci Rep 2016; 6:33246. [PMID: 27629481 PMCID: PMC5024110 DOI: 10.1038/srep33246] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 08/22/2016] [Indexed: 11/09/2022] Open
Abstract
The association between hemoglobin A1c (HbA1c) level and carotid plaque vulnerability has been rarely studied by magnetic resonance imaging (MRI). The present study of MRI-identified carotid atherosclerotic lesions in hypertensive patients with acute stroke therefore sought to determine the associations between HbA1c level and plaque morphological and compositional characteristics and acute cerebral infarction (ACI) severity. Eighty hypertensive patients with acute stroke were enrolled; stratified into high (≥6.5%) and low (<6.5%) HbA1c groups; and underwent carotid and brain MRI to assess carotid plaque features and ACI volume in the region supplied by the internal carotid artery (ICA) in the symptomatic side. Plaque burden [percent wall volume (PWV), max wall thickness (max-WT)] and lipid-rich necrotic core (LRNC) were larger in the high as compared to the low HbA1c group. High HbA1c was an independent risk factor for the presence of plaque (odds ratio [OR] = 3.71) and LRNC plaque (OR = 7.08). HbA1c independently correlated with ACI severity among patients with ICA region cerebral infarction and carotid plaque. Our study suggested that an elevated HbA1c may have an adverse effect on carotid plaque vulnerability especially those with larger LRNC volumes in hypertensive stroke patients, which might exacerbate the severity of ACIs.
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Affiliation(s)
- Beibei Sun
- Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 Pujian Road, Shanghai, China
| | - Huilin Zhao
- Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 Pujian Road, Shanghai, China
| | - Xiaosheng Liu
- Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 Pujian Road, Shanghai, China
| | - Qing Lu
- Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 Pujian Road, Shanghai, China
| | - Xihai Zhao
- Center for Biomedical Imaging Research, Department of Biomedical Engineering, Tsinghua University School of Medicine, Beijing, China
| | - Jun Pu
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 Pujian Road, Shanghai, China
| | - Jianrong Xu
- Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 Pujian Road, Shanghai, China
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Jiang Tang Xiao Ke Granule, a Classic Chinese Herbal Formula, Improves the Effect of Metformin on Lipid and Glucose Metabolism in Diabetic Mice. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 2016:1592731. [PMID: 27418937 PMCID: PMC4932160 DOI: 10.1155/2016/1592731] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Revised: 04/30/2016] [Accepted: 05/24/2016] [Indexed: 12/19/2022]
Abstract
In the present study, the hypoglycemic, hypolipidemic, and antioxidative effects of metformin (MET) combined with Jiang Tang Xiao Ke (JTXK) granule derived from the “Di Huang Tang” were evaluated in mice with type 2 diabetes mellitus (DM) induced by high-fat diet/streptozotocin. DM mice were orally treated with MET (0.19 g/kg) either alone or combined with different doses (1.75, 3.5, or 7 g/kg) of JTXK for 4 weeks. Results showed that the serum and hepatic glucose, lipids, and oxidative stress levels were elevated in DM mice, when compared with the normal mice. MET treatment decreased FBG and serum glucagon levels of DM mice. Combination treatment with MET and JTXK 3.5 g/kg increased the hypoglycemia and insulin sensitivity at 4 weeks when compared with the DM mice treated with MET alone. However, neither MET nor MET/JTXK treatment could completely reverse the hyperglycemia in DM mice. JTXK enhanced the serum triglyceride (TG) and hepatic lipid-lowering effect of MET in a dose-dependent manner in DM mice. JTXK 1.75 and 3.5 g/kg improved the hepatoprotective effect of MET in DM mice. Synergistic effect of combination treatment with MET and JTXK on antioxidant stress was also found in DM mice compared with MET alone.
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Rath MF, Coon SL, Amaral FG, Weller JL, Møller M, Klein DC. Melatonin Synthesis: Acetylserotonin O-Methyltransferase (ASMT) Is Strongly Expressed in a Subpopulation of Pinealocytes in the Male Rat Pineal Gland. Endocrinology 2016; 157:2028-40. [PMID: 26950199 PMCID: PMC4870883 DOI: 10.1210/en.2015-1888] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The rat pineal gland has been extensively used in studies of melatonin synthesis. However, the cellular localization of melatonin synthesis in this species has not been investigated. Here we focus on the localization of melatonin synthesis using immunohistochemical methods to detect the last enzyme in melatonin synthesis, acetylserotonin O-methyltransferase (ASMT), and in situ hybridization techniques to study transcripts encoding ASMT and two other enzymes in melatonin synthesis, tryptophan hydroxylase (TPH)-1 and aralkylamine N-acetyltransferase. In sections of the rat pineal gland, marked cell-to-cell differences were found in ASMT immunostaining intensity and in the abundance of Tph1, Aanat, and Asmt transcripts. ASMT immunoreactivity was localized to the cytoplasm in pinealocytes in the parenchyma of the superficial pineal gland, and immunopositive pinealocytes were also detected in the pineal stalk and in the deep pineal gland. ASMT was found to inconsistently colocalize with S-antigen, a widely used pinealocyte marker; this colocalization was seen in cells throughout the pineal complex and also in displaced pinealocyte-like cells of the medial habenular nucleus. Inconsistent colocalization between ASMT and TPH protein was also detected in the pineal gland. ASMT protein was not detected in extraepithalamic parts of the central nervous system or in peripheral tissues. The findings in this report are of special interest because they provide reason to suspect that melatonin synthesis varies significantly among individual pinealocytes.
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Affiliation(s)
- Martin F Rath
- Department of Neuroscience and Pharmacology (M.F.R., M.M.), Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark; and Section on Neuroendocrinology (M.F.R., S.L.C., F.G.A., J.L.W., D.C.K.), Program in Developmental Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892
| | - Steven L Coon
- Department of Neuroscience and Pharmacology (M.F.R., M.M.), Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark; and Section on Neuroendocrinology (M.F.R., S.L.C., F.G.A., J.L.W., D.C.K.), Program in Developmental Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892
| | - Fernanda G Amaral
- Department of Neuroscience and Pharmacology (M.F.R., M.M.), Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark; and Section on Neuroendocrinology (M.F.R., S.L.C., F.G.A., J.L.W., D.C.K.), Program in Developmental Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892
| | - Joan L Weller
- Department of Neuroscience and Pharmacology (M.F.R., M.M.), Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark; and Section on Neuroendocrinology (M.F.R., S.L.C., F.G.A., J.L.W., D.C.K.), Program in Developmental Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892
| | - Morten Møller
- Department of Neuroscience and Pharmacology (M.F.R., M.M.), Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark; and Section on Neuroendocrinology (M.F.R., S.L.C., F.G.A., J.L.W., D.C.K.), Program in Developmental Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892
| | - David C Klein
- Department of Neuroscience and Pharmacology (M.F.R., M.M.), Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark; and Section on Neuroendocrinology (M.F.R., S.L.C., F.G.A., J.L.W., D.C.K.), Program in Developmental Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892
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Abstract
IN BRIEF In people with type 1 diabetes, sleep may be disrupted as a result of both behavioral and physiological aspects of diabetes and its management. This sleep disruption may negatively affect disease progression and development of complications. This review highlights key research findings regarding sleep in people with type 1 diabetes.
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Affiliation(s)
- Sarah S Farabi
- Center for Narcolepsy, Sleep and Health Research, University of Illinois, Chicago, IL
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