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Mohater S, Qahtan S, Alrefaie Z, Alahmadi A. Vitamin D improves hepatic alterations in ACE1 and ACE2 expression in experimentally induced metabolic syndrome. Saudi Pharm J 2023; 31:101709. [PMID: 37559868 PMCID: PMC10407910 DOI: 10.1016/j.jsps.2023.101709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 07/20/2023] [Indexed: 08/11/2023] Open
Abstract
Metabolic Syndrome (MetS) is a term used to describe a cluster of pathophysiological, biochemical, and metabolic criteria; including high Blood Pressure (BP), high cholesterol, dyslipidaemia, central obesity and Insulin Resistance (IR). The Renin Angiotensin System (RAS) has a regulatory function in BP, hydroelectrolyte balance, and cardiovascular function. RAS is composed of angiotensinogen (AGT), (Ang I), (Ang II), (ACE1), (ACE2), (AT1R), (AT2R), and (Ang 1-7). Vitamin D had been proved to act as a protective factor against MetS. Therefore, the study is pursued to explore vitamin D supplementation roles on hepatic RAS in MetS experimental model. At first, 36 males Albino rats were separated into 4 groups and induced to MetS under controlled circumstances for 3 months. Then, data were collected from blood samples, whereas RNA extracted from liver were analyzed using biochemical and statistical analysis tests. As a result, the major finding was proving that vitamin D can balance the expression of ACE1 and ACE2. Also, confirming that it can improve MetS components by elevating HDL and insulin levels while reducing the levels of BP, cholesterol, LDL, TG, GLU, ALT, AST, and IR. These outcomes may give a new insight into the RAS pathways associated with MetS.
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Affiliation(s)
- Sara Mohater
- Department of Biological Sciences, College of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Samar Qahtan
- Department of Biological Sciences, College of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Zienab Alrefaie
- Medical Physiology Department, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
- Physiology Department, Faculty of Medicine, Cairo University, Egypt
| | - Ahlam Alahmadi
- Department of Biological Sciences, College of Science, King Abdulaziz University, Jeddah, Saudi Arabia
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2
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Liu J, Song Y, Wang Y, Hong H. Vitamin D/vitamin D receptor pathway in non-alcoholic fatty liver disease. Expert Opin Ther Targets 2023; 27:1145-1157. [PMID: 37861098 DOI: 10.1080/14728222.2023.2274099] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 10/18/2023] [Indexed: 10/21/2023]
Abstract
INTRODUCTION Non-alcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease worldwide, but underlying mechanisms are not fully understood. In recent years, a growing body of evidence has emphasized the therapeutic role of vitamin D in NAFLD, but the specific mechanism remains to be investigated. AREAS COVERED This review summarized the roles of vitamin D/VDR (vitamin D receptor) pathway in different types of liver cells (such as hepatocytes, hepatic stellate cells, liver macrophages, T lymphocytes, and other hepatic immune cells) in case of NAFLD. Meanwhile, the effects of pathways in the gut-liver axis, adipose tissue-liver axis, and skeletal muscle-liver axis on the development of NAFLD were further reviewed. Relevant literature was searched on PubMed for the writing of this review. EXPERT OPINION The precise regulation of regional vitamin D/VDR signaling pathway based on cell-specific or tissue-specific function will help clarify the potential mechanism of vitamin D in NAFLD, which may provide new therapeutic targets to improve the safety and efficacy of vitamin D based drugs.
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Affiliation(s)
- Jingqi Liu
- Fujian Key Laboratory of Vascular Aging, Department of Geriatrics, Fujian Institute of Geriatrics, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
- Xiamen Institute of Geriatric Rehabilitation, Department of Geriatrics, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, Fujian, China
| | - Yang Song
- Department of Gastroenterology, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, Fujian, China
| | - Ye Wang
- Xiamen Institute of Geriatric Rehabilitation, Department of Geriatrics, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, Fujian, China
| | - Huashan Hong
- Fujian Key Laboratory of Vascular Aging, Department of Geriatrics, Fujian Institute of Geriatrics, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
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3
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Obaid AA, Almasmoum H, Almaimani RA, El-Boshy M, Aslam A, Idris S, Ghaith MM, El-Readi MZ, Ahmad J, Farrash WF, Mujalli A, Eid SY, Elzubier ME, Refaat B. Vitamin D and calcium co-therapy mitigates pre-established cadmium nephropathy by regulating renal calcium homeostatic molecules and improving anti-oxidative and anti-inflammatory activities in rat. J Trace Elem Med Biol 2023; 79:127221. [PMID: 37244046 DOI: 10.1016/j.jtemb.2023.127221] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 05/21/2023] [Accepted: 05/22/2023] [Indexed: 05/29/2023]
Abstract
BACKGROUND Cadmium (Cd) is a major environmental pollutant and chronic toxicity could induce nephropathy by increasing renal oxidative stress and inflammation. Although vitamin D (VD) and calcium (Ca) prophylactic treatments attenuated Cd-induced cell injury, none of the prior studies measure their renoprotective effects against pre-established Cd-nephropathy. AIMS To measure the alleviating effects of VD and/or Ca single and dual therapies against pre-established nephrotoxicity induced by chronic Cd toxicity prior to treatment initiation. METHODS Forty male adult rats were allocated into: negative controls (NC), positive controls (PC), Ca, VD and VC groups. The study lasted for eight weeks and all animals, except the NC, received CdCl2 in drinking water (44 mg/L) throughout the study. Ca (100 mg/kg) and/or VD (350 IU/kg) were given (five times/week) during the last four weeks to the designated groups. Subsequently, the expression of transforming growth factor-β (TGF-β1), inducible nitric oxide synthase (iNOS), neutrophil gelatinase-associated lipocalin (NGAL), kidney injury molecule-1 (KIM-1), VD synthesising (Cyp27b1) and catabolizing (Cyp24a1) enzymes with VD receptor (VDR) and binding protein (VDBP) was measured in renal tissues. Similarly, renal expression of Ca voltage-dependent channels (CaV1.1/CaV3.1), store-operated channels (RyR1/ITPR1), and binding proteins (CAM/CAMKIIA/S100A1/S100B) were measured. Serum markers of renal function alongside several markers of oxidative stress (MDA/H2O2/GSH/GPx/CAT) and inflammation (IL-6/TNF-α/IL-10) together with renal cell apoptosis and expression of caspase-3 were also measured. RESULTS The PC group exhibited hypovitaminosis D, hypocalcaemia, hypercalciuria, proteinuria, reduced creatinine clearance, and increased renal apoptosis/necrosis with higher caspase-3 expression. Markers of renal tissue damage (TGF-β1/iNOS/NGAL/KIM-1), oxidative stress (MDA/H2O2), and inflammation (TNF-α/IL-1β/IL-6) increased, whilst the antioxidants (GSH/GPx/CAT) and IL-10 decreased, in the PC group. The PC renal tissues also showed abnormal expression of Cyp27b1, Cyp24a1, VDR, and VDBP, alongside Ca-membranous (CaV1.1/CaV3.1) and store-operated channels (RyR1/ITPR1) and cytosolic Ca-binding proteins (CAM/CAMKIIA/S100A1/S100B). Although VD was superior to Ca monotherapy, their combination revealed the best mitigation effects by attenuating serum and renal tissue Cd concentrations, inflammation and oxidative stress, alongside modulating the expression of VD/Ca-molecules. CONCLUSIONS This study is the first to show improved alleviations against Cd-nephropathy by co-supplementing VD and Ca, possibly by better regulation of Ca-dependent anti-oxidative and anti-inflammatory actions.
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Affiliation(s)
- Ahmad A Obaid
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al Abdeyah, PO Box 7607, Makkah, Saudi Arabia
| | - Hussain Almasmoum
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al Abdeyah, PO Box 7607, Makkah, Saudi Arabia
| | - Riyad A Almaimani
- Biochemistry Department, Faculty of Medicine, Umm Al-Qura University, Al Abdeyah, PO Box 7607, Makkah, Saudi Arabia
| | - Mohamed El-Boshy
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al Abdeyah, PO Box 7607, Makkah, Saudi Arabia; Clinical Pathology Department, Faculty of Veterinary Medicine, Mansoura University, Mansoura, Egypt
| | - Akhmed Aslam
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al Abdeyah, PO Box 7607, Makkah, Saudi Arabia
| | - Shakir Idris
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al Abdeyah, PO Box 7607, Makkah, Saudi Arabia
| | - Mazen M Ghaith
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al Abdeyah, PO Box 7607, Makkah, Saudi Arabia
| | - Mahmoud Z El-Readi
- Biochemistry Department, Faculty of Medicine, Umm Al-Qura University, Al Abdeyah, PO Box 7607, Makkah, Saudi Arabia; Biochemistry Department, Faculty of Pharmacy, Al-Azhar University, Assuit 71524, Egypt
| | - Jawwad Ahmad
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al Abdeyah, PO Box 7607, Makkah, Saudi Arabia
| | - Wesam F Farrash
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al Abdeyah, PO Box 7607, Makkah, Saudi Arabia
| | - Abdulrahman Mujalli
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al Abdeyah, PO Box 7607, Makkah, Saudi Arabia
| | - Safaa Y Eid
- Biochemistry Department, Faculty of Medicine, Umm Al-Qura University, Al Abdeyah, PO Box 7607, Makkah, Saudi Arabia
| | - Mohamed E Elzubier
- Biochemistry Department, Faculty of Medicine, Umm Al-Qura University, Al Abdeyah, PO Box 7607, Makkah, Saudi Arabia
| | - Bassem Refaat
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al Abdeyah, PO Box 7607, Makkah, Saudi Arabia.
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Grant WB, Al Anouti F, Boucher BJ, Fakhoury HMA, Moukayed M, Pilz S, Al-Daghri NM. Evidence That Increasing Serum 25(OH)D Concentrations to 30 ng/mL in the Kingdom of Saudi Arabia and the United Arab Emirates Could Greatly Improve Health Outcomes. Biomedicines 2023; 11:994. [PMID: 37189612 PMCID: PMC10136066 DOI: 10.3390/biomedicines11040994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/17/2023] [Accepted: 03/21/2023] [Indexed: 03/30/2023] Open
Abstract
Accumulating evidence supports the potential protective effects of vitamin D against chronic diseases such as Alzheimer's disease, autoimmune diseases, cancers, cardiovascular disease (ischaemic heart disease and stroke), type 2 diabetes, hypertension, chronic kidney disease, stroke, and infectious diseases such as acute respiratory tract diseases, COVID-19, influenza, and pneumonia, as well as adverse pregnancy outcomes. The respective evidence is based on ecological and observational studies, randomized controlled trials, mechanistic studies, and Mendelian randomization studies. However, randomized controlled trials on vitamin D supplementation have largely failed to show benefits, probably due to poor design and analysis. In this work, we aim to use the best available evidence on the potential beneficial effects of vitamin D to estimate the expected reduction in incidence and mortality rates of vitamin D-related diseases in the Kingdom of Saudi Arabia and the United Arab Emirates if minimum serum 25(OH)D concentrations were to be raised to 30 ng/mL. Estimated reductions by 25% for myocardial infarction incidence, 35% for stroke incidence, 20 to 35% for cardiovascular disease mortality, and 35% for cancer mortality rates depicted a promising potential for raising serum 25(OH)D. Methods to increase serum 25(OH)D concentrations at the population level could include food fortification with vitamin D3, vitamin D supplementation, improved dietary vitamin D intake, and sensible sun exposure.
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Affiliation(s)
- William B. Grant
- Sunlight, Nutrition, and Health Research Center, P.O. Box 641603, San Francisco, CA 94164-1603, USA
| | - Fatme Al Anouti
- Department of Health Sciences, College of Natural and Health Sciences, Zayed University, Abu Dhabi P.O. Box 144534, United Arab Emirates
| | - Barbara J. Boucher
- The Blizard Institute, Barts & The London School of Medicine & Dentistry, Queen Mary University of London, London E12AT, UK
| | - Hana M. A. Fakhoury
- Department of Biochemistry and Molecular Medicine, College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia
| | - Meis Moukayed
- School of Arts and Sciences, American University in Dubai, Dubai P.O. Box 28282, United Arab Emirates
| | - Stefan Pilz
- Division of Endocrinology and Diabetology, Department of Internal Medicine, Medical University of Graz, 8036 Graz, Austria
| | - Nasser M. Al-Daghri
- Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
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Sundari LPR, Purnawati S, Tunas IK, Weta IW. Low 25 Hydroxyvitamin D and High Leptin Level as Risk Factors of Metabolic Syndrome in Obese Women. CURRENT RESEARCH IN NUTRITION AND FOOD SCIENCE JOURNAL 2022. [DOI: 10.12944/crnfsj.10.3.29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Obesity is associated with low vitamin D levels and high leptin levels. The aim of this study is to see if low vitamin D levels and high leptin levels are risk factors for metabolic syndrome in obese women.This study use case control study to observe the difference of leptin and vitamin D plasma level as risk factor of metabolic syndrome on obesity women. There are 34 obese women as the sample of study. Subject is divided randomly into 2 groups, where each of groups consists of 17 obese with syndrome metabolic case and 17 obese women as control. Each group was tested for its vitamin D and leptin level. The relationship between vitamin D and leptin levels and metabolic syndrome was then investigated using the Chi Square test, and logistic regression was taken to discover odds ratio (OR). The result is p=0.031 (p<0.05), and OR=5.25; CI 95% which means the group with low vitamin D has risk factors for metabolic syndrome by 5 times than the control group high vitamin D. It was obtained p=0.001 (p<0.05), and OR= 256; CI 95% means that the case group with high leptin is the risk factors of the occurred metabolic syndrome by 256 times than low level of leptin in control group. It is concluded that in this study there is a link between low vitamin D levels and high leptin levels as risk factors of metabolic syndrome found in obesity.
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Affiliation(s)
| | - Susy Purnawati
- 1Department of Physiology, Faculty of Medicine, Udayana University, Bali, Indonesia
| | - I Ketut Tunas
- 2Department of Health Information Management, Faculty of Health Sciences, Bali International University, Bali. Indonesia
| | - I Wayan Weta
- 3Department of Clinical Nutrition Science, Faculty of Medicine, Udayana University, Bali
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Cordeiro A, Pereira SE, Saboya CJ, Ramalho A. Vitamin D Supplementation and Its Relationship with Loss of Visceral Adiposity. Obes Surg 2022; 32:3419-3425. [PMID: 35953634 DOI: 10.1007/s11695-022-06239-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 07/29/2022] [Accepted: 08/04/2022] [Indexed: 11/26/2022]
Abstract
PURPOSE An inverse relationship between vitamin D (VD) nutritional status and obesity is frequent, and the distribution of body fat is an important aspect to assess the risks of obesity-related metabolic dysfunction. The purpose of the study was to evaluate the relationship between serum VD concentrations and body fat reduction after 12 months of bariatric surgery, using two different vitamin D3 (VD3) supplementation protocols. MATERIAL AND METHODS A randomized controlled trial consisted of 41 patients divided into G1 (800 IU/day) and G2 (1800 IU/day) according to the VD3 supplementation. At baseline (T0) and follow-up (T1), 25(OH)D, waist circumference (WC), visceral adiposity index (VAI), body adiposity index (BAI), and waist/height ratio (WHtR) were evaluated. RESULTS In T0, the mean of 25(OH)D was lower in G2 compared to that in G1 (22.6 vs 23.6 ng/mL; p = 0.000). At T1, it had a significant increase in G2 (32.1 vs 29.9 ng/mL; p = 0.000), with 60% sufficiency. A significant negative correlation was observed between VAI, BAI, and WHtR with 25(OH)D in G2 (r = - 0.746, p = 0.024; r = - 0.411, p = 0.036; r = - 0.441, p = 0.032) after surgery. Higher mean changes from baseline of visceral fat loss, represented by VAI, were observed in G2 (176.2 ± 149.0-75.5 ± 55.0, p = 0.000). CONCLUSION Patients submitted to the 1800 IU/day protocol, 12 months after the surgical procedure, had a higher percentage of sufficient vitamin D levels compared to those submitted to the 800 IU/day protocol. Additionally, higher dose supplementation promoted a significant improvement in VAI.
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Affiliation(s)
- Adryana Cordeiro
- Center for Research On Micronutrients, Federal University of Rio de Janeiro (NPqM/UFRJ), Rio de Janeiro, 21941-902, Brazil.
| | - Silvia Elaine Pereira
- Center for Research On Micronutrients, Federal University of Rio de Janeiro (NPqM/UFRJ), Rio de Janeiro, 21941-902, Brazil
- Multidisciplinary Center for Bariatric and Metabolic Surgery, Rio de Janeiro, 22280-020, Brazil
| | - Carlos José Saboya
- Multidisciplinary Center for Bariatric and Metabolic Surgery, Rio de Janeiro, 22280-020, Brazil
| | - Andrea Ramalho
- Center for Research On Micronutrients, Federal University of Rio de Janeiro (NPqM/UFRJ), Rio de Janeiro, 21941-902, Brazil
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Zaromytidou E, Koufakis T, Dimakopoulos G, Drivakou D, Konstantinidou S, Antonopoulou V, Grammatiki M, Manthou E, Iakovou I, Gotzamani-Psarrakou A, Kotsa K. The effect of vitamin D supplementation on glycemic status of elderly people with prediabetes: a 12-month open-label, randomized-controlled study. Expert Rev Clin Pharmacol 2022; 15:89-97. [PMID: 35167764 DOI: 10.1080/17512433.2022.2043153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Data on the efficacy of vitamin D in improving the glycemic status of elderly people with prediabetes are scarce. This open-label, randomized-controlled trial investigated the effect of vitamin D supplementation on glycemic markers of Greek people with prediabetes aged 60 years or above, over 12 months. RESEARCH DESIGN AND METHODS Participants were randomized to a weekly vitamin D3 dose of 25,000 IU (n = 45) or nothing (n = 45), on top of lifestyle measures. Anthropometric and glycemic markers were assessed at baseline, 3, 6, and 12 months. RESULTS Supplemented participants demonstrated a significant increase in 25(OH)D concentrations at 3, 6, and 12 months compared to baseline . In the intervention group, fasting glucose was decreased at 6 months compared to baseline (96.12 ± 5.51 vs 103.40 ± 12.05 mg/dl, p < 0.01) and glycated hemoglobin was significantly lower at 6 and 12 months compared to baseline [5.82 ± 0.21% vs 5.87 ± 0.21%, p = 0.004 and 5.80 ± 0.23% vs 5.87 ± 0.21%, p < 0.001, respectively]. CONCLUSIONS Vitamin D could be complementary to lifestyle change strategy for the management of prediabetes in the elderly. CLINICAL TRIAL REGISTRATION ISRCTN51643592.
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Affiliation(s)
| | - Theocharis Koufakis
- Division of Endocrinology and Metabolism, First Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, Ahepa University Hospital, Thessaloniki, Greece
| | - Georgios Dimakopoulos
- Medical Statistics, Epirus Science and Technology Park Campus of the University of Ioannina, Ioannina, Greece
| | - Despina Drivakou
- Division of Endocrinology and Metabolism, First Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, Ahepa University Hospital, Thessaloniki, Greece
| | | | - Vasiliki Antonopoulou
- Division of Endocrinology and Metabolism, First Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, Ahepa University Hospital, Thessaloniki, Greece
| | - Maria Grammatiki
- Division of Endocrinology and Metabolism, First Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, Ahepa University Hospital, Thessaloniki, Greece
| | - Eleni Manthou
- Division of Endocrinology and Metabolism, First Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, Ahepa University Hospital, Thessaloniki, Greece
| | - Ioannis Iakovou
- Second Academic Nuclear Medicine Department, Academic General Hospital of Thessaloniki "AHEPA" Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | - Kalliopi Kotsa
- Division of Endocrinology and Metabolism, First Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, Ahepa University Hospital, Thessaloniki, Greece
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Grant WB, Al Anouti F, Boucher BJ, Dursun E, Gezen-Ak D, Jude EB, Karonova T, Pludowski P. A Narrative Review of the Evidence for Variations in Serum 25-Hydroxyvitamin D Concentration Thresholds for Optimal Health. Nutrients 2022; 14:639. [PMID: 35276999 PMCID: PMC8838864 DOI: 10.3390/nu14030639] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 01/25/2022] [Accepted: 01/28/2022] [Indexed: 12/18/2022] Open
Abstract
Vitamin D3 has many important health benefits. Unfortunately, these benefits are not widely known among health care personnel and the general public. As a result, most of the world's population has serum 25-hydroxyvitamin D (25(OH)D) concentrations far below optimal values. This narrative review examines the evidence for the major causes of death including cardiovascular disease, hypertension, cancer, type 2 diabetes mellitus, and COVID-19 with regard to sub-optimal 25(OH)D concentrations. Evidence for the beneficial effects comes from a variety of approaches including ecological and observational studies, studies of mechanisms, and Mendelian randomization studies. Although randomized controlled trials (RCTs) are generally considered the strongest form of evidence for pharmaceutical drugs, the study designs and the conduct of RCTs performed for vitamin D have mostly been flawed for the following reasons: they have been based on vitamin D dose rather than on baseline and achieved 25(OH)D concentrations; they have involved participants with 25(OH)D concentrations above the population mean; they have given low vitamin D doses; and they have permitted other sources of vitamin D. Thus, the strongest evidence generally comes from the other types of studies. The general finding is that optimal 25(OH)D concentrations to support health and wellbeing are above 30 ng/mL (75 nmol/L) for cardiovascular disease and all-cause mortality rate, whereas the thresholds for several other outcomes appear to range up to 40 or 50 ng/mL. The most efficient way to achieve these concentrations is through vitamin D supplementation. Although additional studies are warranted, raising serum 25(OH)D concentrations to optimal concentrations will result in a significant reduction in preventable illness and death.
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Affiliation(s)
- William B. Grant
- Sunlight, Nutrition, and Health Research Center, P.O. Box 641603, San Francisco, CA 94164-1603, USA
| | - Fatme Al Anouti
- Department of Health Sciences, College of Natural and Health Sciences, Zayed University, Abu Dhabi 144534, United Arab Emirates;
| | - Barbara J. Boucher
- The Blizard Institute, Barts & The London School of Medicine & Dentistry, Queen Mary University of London, London E12AT, UK;
| | - Erdinç Dursun
- Department of Neuroscience, Institute of Neurological Sciences, Istanbul University-Cerrahpasa, Istanbul 34098, Turkey; (E.D.); (D.G.-A.)
| | - Duygu Gezen-Ak
- Department of Neuroscience, Institute of Neurological Sciences, Istanbul University-Cerrahpasa, Istanbul 34098, Turkey; (E.D.); (D.G.-A.)
| | - Edward B. Jude
- Tameside and Glossop Integrated Care NHS Foundation Trust, Fountain Street, Ashton-under-Lyne OL6 9RW, UK;
- The University of Manchester, Oxford Road, Manchester M13 9PL, UK
- Manchester Metropolitan University, All Saints Building, Manchester M15 6BH, UK
| | - Tatiana Karonova
- Clinical Endocrinology Laboratory, Department of Endocrinology, Almazov National Medical Research Centre, 194021 Saint-Petersburg, Russia;
| | - Pawel Pludowski
- Department of Biochemistry, Radioimmunology and Experimental Medicine, The Children’s Memorial Health Institute, 04730 Warsaw, Poland;
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WANG G, ZHANG J, ZHANG K, ZHAO Q, ZHOU F, XU J, XUE W, ZHANG C, FU C. Possible action mechanisms of vitamin D supplementation in combating obesity and obesity-related issues of bone health: a mini review. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.114621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Guiqing WANG
- the Sixth Hospital affiliated to Guangzhou Medical University, China
| | - Jie ZHANG
- Beijing Zhongwei Research Center of Biological and Translational Medicine, China
| | - Kailong ZHANG
- Beijing Zhongwei Research Center of Biological and Translational Medicine, China
| | - Qingqing ZHAO
- Beijing Zhongwei Research Center of Biological and Translational Medicine, China
| | - Fang ZHOU
- National University of Singapore (Suzhou) Research Institude, China
| | - Jie XU
- National University of Singapore (Suzhou) Research Institude, China
| | - Wenshuang XUE
- National University of Singapore (Suzhou) Research Institude, China
| | - Chunye ZHANG
- Beijing Zhongwei Research Center of Biological and Translational Medicine, China
| | - Caili FU
- National University of Singapore (Suzhou) Research Institude, China
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Li A, Yi B, Han H, Yang S, Hu Z, Zheng L, Wang J, Liao Q, Zhang H. Vitamin D-VDR (vitamin D receptor) regulates defective autophagy in renal tubular epithelial cell in streptozotocin-induced diabetic mice via the AMPK pathway. Autophagy 2021; 18:877-890. [PMID: 34432556 PMCID: PMC9037529 DOI: 10.1080/15548627.2021.1962681] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Diabetic nephropathy (DN) has become a major cause of end-stage renal disease, and autophagy disorder is implicated in the pathogenesis of DN. Our previous studies found that vitamin D (VD) and VDR (vitamin D receptor) played a renoprotective role by inhibiting inflammation and fibrosis. However, whether VD-VDR regulates autophagy disorders in DN remains unclear. In this study, we established a streptozotocin (STZ)-induced diabetic model in vdr knockout (vdr-KO) mice and VDR specifically overexpressed in renal proximal tubular epithelial cells (Vdr-OE) mice. Our results showed that paricalcitol (an activated vitamin D analog) or Vdr-OE could alleviate STZ-induced ALB (albumin) excretion, renal tubule injury and inflammation, while these were worsened in vdr-KO mice. Defective autophagy was observed in the kidneys of STZ mice, which was more pronounced in vdr-KO mice and could be partially restored by paricalcitol or Vdr-OE. In high glucose-induced HK-2 cells, defective autophagy and decreased PRKAA1/AMPK phosphorylation was observed, which could be partially restored by paricalcitol in a VDR-dependent manner. AMPK inhibitor abolished paricalcitol-induced autophagy activation, and AMPK activator restored the defective autophagy in high glucose-induced HK-2 cells. Furthermore, paricalcitol-mediated AMPK activation was abrogated by CAMKK2/CaMKKβ inhibition, but not by STK11/LKB1 knockout. Meanwhile, paricalcitol rescued the decreased Ca2+ concentration induced by high glucose. In conclusion, VD-VDR can restore defective autophagy in the kidney of STZ-induced diabetic mice, which could be attributed to the activation of the Ca2+-CAMKK2-AMPK pathway in renal tubular epithelial cells. Abbreviations: ACTB/β-actin: actin beta;AGE: advanced glycation end-products;AMPK: AMP-activated protein kinase;CAMKK2/CaMKKβ: calcium-calmodulin dependent protein kinase kinase 2;CQ: chloroquine;DN: diabetic nephropathy;HG: high levels of glucose;KO: knockout;LG: low levels of glucose;MAP1LC3/LC3: microtubule associated protein 1 light chain 3;NOD2: nucleotide binding oligomerization domain containing 2;OE: overexpression;PAS: periodic acid Schiff; Pari: paricalcitol;PTECs: proximal renal tubule epithelial cells;RT: room temperature;SQSTM1/p62: sequestosome 1;STK11/LKB1: serine/threonine kinase 11;STZ: streptozotocin;TEM: transmission electron microscopy;VD: vitamin D;VDR: vitamin D receptor;WT: wild-type
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Affiliation(s)
- Aimei Li
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Bin Yi
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hailong Han
- Centre For Medical Genetics And Hunan Key Laboratory of Medical Genetics, School Of Life Sciences, Central South University, Changsha, Hunan, China.,Department of Neuroscience, Postdoctoral Station For Basic Medicine, Hengyang School of Medicine, University of South China, Hengyang, Hunan, China
| | - Shikun Yang
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhaoxin Hu
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Li Zheng
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jianwen Wang
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qin Liao
- Department of Anesthesiology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hao Zhang
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
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11
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Resveratrol Ameliorates High-Fat-Diet-Induced Abnormalities in Hepatic Glucose Metabolism in Mice via the AMP-Activated Protein Kinase Pathway. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:6616906. [PMID: 34257688 PMCID: PMC8253624 DOI: 10.1155/2021/6616906] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Revised: 05/09/2021] [Accepted: 06/02/2021] [Indexed: 12/14/2022]
Abstract
Diabetes mellitus is highly prevalent worldwide. High-fat-diet (HFD) consumption can lead to liver fat accumulation, impair hepatic glycometabolism, and cause insulin resistance and the development of diabetes. Resveratrol has been shown to improve the blood glucose concentration of diabetic mice, but its effect on the abnormal hepatic glycometabolism induced by HFD-feeding and the mechanism involved are unknown. In this study, we determined the effects of resveratrol on the insulin resistance of high-fat-diet-fed mice and a hepatocyte model by measuring serum biochemical indexes, key indicators of glycometabolism, glucose uptake, and glycogen synthesis in hepatocytes. We found that resveratrol treatment significantly ameliorated the HFD-induced abnormalities in glucose metabolism in mice, increased glucose absorption and glycogen synthesis, downregulated protein phosphatase 2A (PP2A) and activated Ca2+/CaM-dependent protein kinase kinase β (CaMKKβ), and increased the phosphorylation of AMP-activated protein kinase (AMPK). In insulin-resistant HepG2 cells, the administration of a PP2A activator or CaMKKβ inhibitor attenuated the effects of resveratrol, but the administration of an AMPK inhibitor abolished the effects of resveratrol. Resveratrol significantly ameliorates abnormalities in glycometabolism induced by HFD-feeding and increases glucose uptake and glycogen synthesis in hepatocytes. These effects are mediated through the activation of AMPK by PP2A and CaMKKβ.
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12
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Dose-response relationship between serum 25-hydroxyvitamin D and the risk of metabolic syndrome. Clin Nutr 2021; 40:1530-1536. [PMID: 33743288 DOI: 10.1016/j.clnu.2021.02.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 02/09/2021] [Accepted: 02/13/2021] [Indexed: 11/23/2022]
Abstract
BACKGROUND & AIMS There are conflicting results for the association of 25-hydroxyvitamin D [25(OH)D] with metabolic syndrome (MetS). The aim of this study was to investigate the relationship between serum 25(OH)D concentration and MetS and its components in a Chinese adult population. METHODS A cross-sectional study of 25,691 men and 22,146 women from China was performed in 2017. MetS was defined according to National Cholesterol Education Program Adult Treatment Panel Ш. Logistic and restricted cubic spline regression analyses were used to assess the association between 25(OH)D and MetS. RESULTS Of the 43,837 participants aged 18-96 years, the prevalence of MetS was 21.0%. The adjusted odds ratios (ORs) for MetS decreased gradually with increasing 25(OH)D concentrations (P for trend < 0.001). Compared with the lowest 25(OH)D quartile, the adjusted ORs (95% CIs) for MetS from second to the highest quartile were 0.95 (0.88-1.02), 0.82 (0.76-0.88), and 0.70 (0.65-0.75), respectively. We observed a linear dose-response relationship between 25(OH)D concentrations and MetS risk (P for nonlinear trend = 0.35); the risk of MetS decreased by 20% (OR = 0.80, 95%CI: 0.77-0.82) for each 10 ng/ml increment in 25(OH)D concentration. The inverse association was more evident in men and participants with eGFR <60 ml/min/1.73 m2 or AST ≥40 U/L (all P for interaction < 0.05). Moreover, significant inverse relationships were observed between 25(OH)D and elevated triglycerides, reduced high-density lipoprotein cholesterol and elevated blood pressure. CONCLUSIONS These findings suggested that higher 25(OH)D concentrations were independently associated with a dose-response decreased risk of MetS among Chinese adults.
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Aslam A, Ahmad J, Baghdadi MA, Idris S, Almaimani R, Alsaegh A, Alhadrami M, Refaat B. Chemopreventive effects of vitamin D 3 and its analogue, paricalcitol, in combination with 5-fluorouracil against colorectal cancer: The role of calcium signalling molecules. Biochim Biophys Acta Mol Basis Dis 2020; 1867:166040. [PMID: 33338596 DOI: 10.1016/j.bbadis.2020.166040] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 11/07/2020] [Accepted: 12/09/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND Although vitamin D (VD) is chemoprotective and enhances 5-fluorouracil (5-FU) cytotoxicity against colorectal cancer (CRC), little is known about its potential calcium (Ca2+)-mediated anti-tumorigenic actions. Therefore, this study compared between VD and its non-calcaemic analogue, Paricalcitol (Pcal), ± 5-FU in relation to chemoprevention and Ca2+-mediated apoptosis in vivo and in vitro. METHODS Seventy male mice were distributed to: negative controls, positive controls (PC), VD, Pcal, 5-FU, VD + 5-FU and Pcal+5-FU groups. All groups, except negative, received two consecutive azoxymethane (AOM)-injections (10 mg/Kg/week) for CRC induction. VD3 (1000 IU/kg; three times/week) and Pcal (1.25 μg/kg; three times/week) injections started week-16 post-AOM and for 10 weeks. Three successive 5-FU cycles began at week-21 (50 mg/Kg/week). Similar protocols with VD3, Pcal and/or 5-FU were applied in the HT29 colon cancer cells. RESULTS The PC group had abundant malignant tumours, markedly elevated proliferation markers (survivin/CCND1) and declines in cyclin-dependent kinase-inhibitor-1A, pro-apoptotic molecules (p53/BAX/cytochrome_C/caspase-3), tissue Ca2+ concentrations and Ca2+-dependent proteins (CaSR/CAM/CAMKIIA). All monotherapies equally reduced tumour numbers and proliferation markers whilst promoting the anti-tumorigenic molecules. VD and/or 5-FU, but not Pcal monotherapy, enhanced Ca2+ levels and Ca2+-related molecules (CaSR/CAM/CAMKIIA/BAX/cytochrome_C) in vivo and in vitro. However, VD + 5-FU co-therapy showed the lowest tumour numbers, the highest cell numbers in sub-G1 phase of cell cycle, alongside the most effective modulations of oncogenes, tumour suppressors and Ca2+-related molecules at the gene and protein levels in vivo and in vitro. CONCLUSIONS VD3 was superior than Paricalcitol in potentiating 5-FU cytotoxicity, possibly by upregulating several Ca2+-related molecules involved in tumour suppression.
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Affiliation(s)
- Akhmed Aslam
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al Abdeyah, PO Box 7607, Makkah, Saudi Arabia
| | - Jawwad Ahmad
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al Abdeyah, PO Box 7607, Makkah, Saudi Arabia
| | | | - Shakir Idris
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al Abdeyah, PO Box 7607, Makkah, Saudi Arabia
| | - Riyad Almaimani
- Department of Biochemistry, Faculty of Medicine, Umm Al-Qura University, Al Abdeyah, Makkah, Saudi Arabia
| | - Aiman Alsaegh
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al Abdeyah, PO Box 7607, Makkah, Saudi Arabia
| | - Mai Alhadrami
- Department of Pathology, Faculty of Medicine, Umm Al-Qura University, Al Abdeyah, Makkah, Saudi Arabia
| | - Bassem Refaat
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al Abdeyah, PO Box 7607, Makkah, Saudi Arabia.
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Doan TNK, Vo DK, Kim H, Balla A, Lee Y, Yoon IS, Maeng HJ. Differential Effects of 1α,25-Dihydroxyvitamin D 3 on the Expressions and Functions of Hepatic CYP and UGT Enzymes and Its Pharmacokinetic Consequences In Vivo. Pharmaceutics 2020; 12:pharmaceutics12111129. [PMID: 33238436 PMCID: PMC7700423 DOI: 10.3390/pharmaceutics12111129] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 11/19/2020] [Accepted: 11/21/2020] [Indexed: 12/17/2022] Open
Abstract
The compound 1α,25-Dihydroxyvitamin D3 (1,25(OH)2D3) is the active form of vitamin D3 and a representative ligand of the vitamin D receptor (VDR). Previous studies have described the impacts of 1,25(OH)2D3 on a small number of cytochrome P450 (CYP) and uridine diphosphate-glucuronyltransferase (UGT) enzymes, but comparatively little is known about interactions between several important CYP and UGT isoforms and 1,25(OH)2D3 in vitro and/or in vivo. Thus, we investigated the effects of 1,25(OH)2D3 on the gene and protein expressions and functional activities of selected CYPs and UGTs and their impacts on drug pharmacokinetics in rats. The mRNA/protein expressions of Cyp2b1 and Cyp2c11 were downregulated in rat liver by 1,25(OH)2D3. Consistently, the in vitro metabolic kinetics (Vmax and CLint) of BUP (bupropion; a Cyp2b1 substrate) and TOL (tolbutamide; a Cyp2c11 substrate) were significantly changed by 1,25(OH)2D3 treatment in liver microsomes, but the kinetics of acetaminophen (an Ugt1a6/1a7/1a8 substrate) remained unaffected, consistent with Western blotting data for Ugt1a6. In rat pharmacokinetic studies, the total body clearance (CL) and nonrenal clearance (CLNR) of BUP were significantly reduced by 1,25(OH)2D3, but unexpectedly, the total area under the plasma concentration versus time curve from time zero to infinity (AUC) of hydroxybupropion (HBUP) was increased probably due to a marked reduction in the renal clearance (CLR) of HBUP. Additionally, the AUC, CL, and CLNR for TOL and the AUC for 4-hydroxytolbutamide (HTOL) were unaffected by 1,25(OH)2D3 in vivo. Discrepancies between observed in vitro metabolic activity and in vivo pharmacokinetics of TOL were possibly due to a greater apparent distribution volume at the steady-state (Vss) and lower plasma protein binding in 1,25(OH)2D3-treated rats. Our results suggest possible drug-drug and drug-nutrient interactions and provide additional information concerning safe drug combinations and dosing regimens for patients taking VDR ligand drugs including 1,25(OH)2D3.
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Affiliation(s)
- Trang Nguyen Kieu Doan
- Department of Pharmacy, College of Pharmacy, Gachon University, Incheon 21936, Korea; (T.N.K.D.); (D.-K.V.); (A.B.)
| | - Dang-Khoa Vo
- Department of Pharmacy, College of Pharmacy, Gachon University, Incheon 21936, Korea; (T.N.K.D.); (D.-K.V.); (A.B.)
| | - Hyojung Kim
- Department of Pharmacology, Sungkyunkwan University School of Medicine, Suwon 16419, Korea; (H.K.); (Y.L.)
| | - Anusha Balla
- Department of Pharmacy, College of Pharmacy, Gachon University, Incheon 21936, Korea; (T.N.K.D.); (D.-K.V.); (A.B.)
| | - Yunjong Lee
- Department of Pharmacology, Sungkyunkwan University School of Medicine, Suwon 16419, Korea; (H.K.); (Y.L.)
| | - In-Soo Yoon
- Department of Manufacturing Pharmacy, College of Pharmacy, Pusan National University, Busan 46241, Korea
- Correspondence: (I.-S.Y.); (H.-J.M.); Tel.: +82-51-510-2806 (I.-S.Y.); +82-32-820-4935 (H.-J.M.)
| | - Han-Joo Maeng
- Department of Pharmacy, College of Pharmacy, Gachon University, Incheon 21936, Korea; (T.N.K.D.); (D.-K.V.); (A.B.)
- Correspondence: (I.-S.Y.); (H.-J.M.); Tel.: +82-51-510-2806 (I.-S.Y.); +82-32-820-4935 (H.-J.M.)
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15
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Boucher BJ. Why do so many trials of vitamin D supplementation fail? Endocr Connect 2020; 9:R195-R206. [PMID: 33052876 PMCID: PMC7487184 DOI: 10.1530/ec-20-0274] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 08/11/2020] [Indexed: 12/12/2022]
Abstract
Our knowledge of vitamin D has come a long way since the 100 years it took for doctors to accept, between 1860 and 1890, that both sunlight and cod liver oil (a well-known folk remedy) cured and prevented rickets. Vitamins D2/D3 were discovered exactly a hundred years ago, and over the last 50 years vitamin D has been found to have many effects on virtually all human tissues and not just on bone health, while mechanisms affecting the actions of vitamin D at the cellular level are increasingly understood, but deficiency persists globally. Observational studies in humans have shown that better provision of vitamin D is strongly associated, dose-wise, with reductions in current and future health risks in line with the known actions of vitamin D. Randomised controlled trials, commonly accepted as providing a 'gold standard' for assessing the efficacy of new forms of treatment, have frequently failed to provide supportive evidence for the expected health benefits of supplementation. Such RCTs, however, have used designs evolved for testing drugs while vitamin D is a nutrient; the appreciation of this difference is critical to identifying health benefits from existing RCT data and for improving future RCT design. This report aims, therefore, to provide a brief overview of the evidence for a range of non-bony health benefits of vitamin D repletion; to discuss specific aspects of vitamin D biology that can confound RCT design and how to allow for them.
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Affiliation(s)
- Barbara J Boucher
- Blizard Institute, Barts & The London school of Medicine & Dentistry, Queen Mary University of London, London, UK
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16
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Leung PS. Does vitamin D supplementation reduce type 2 diabetes risk? ANNALS OF TRANSLATIONAL MEDICINE 2020; 7:614. [PMID: 31930015 DOI: 10.21037/atm.2019.10.94] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Po Sing Leung
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
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17
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El-Boshy M, Refaat B, Almaimani RA, Abdelghany AH, Ahmad J, Idris S, Almasmoum H, Mahbub AA, Ghaith MM, BaSalamah MA. Vitamin D 3 and calcium cosupplementation alleviates cadmium hepatotoxicity in the rat: Enhanced antioxidative and anti-inflammatory actions by remodeling cellular calcium pathways. J Biochem Mol Toxicol 2020; 34:e22440. [PMID: 31926057 DOI: 10.1002/jbt.22440] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 12/10/2019] [Accepted: 12/17/2019] [Indexed: 12/13/2022]
Abstract
Although vitamin D (VD) and calcium (Ca) attenuate cadmium (Cd) metabolism, their combined antioxidant and anti-inflammatory actions against Cd toxicity have not been previously explored. Hence, this study measured the protective effects of VD ± Ca supplements against Cd hepatotoxicity. Forty adult male rats were distributed to: negative controls (NCs), positive controls (PCs), VD, Ca, and VD3 and Ca (VDC) groups. All groups, except NC, received CdCl2 in drinking water (44 mg/L) for 4 weeks individually or concurrently with intramuscular VD3 (600 IU/kg; three times per week) and/or oral Ca (100 mg/kg; five times per week). The PC group showed abnormal hepatic biochemical parameters and increase in cellular cytochrome C, caspase-9, and caspase-3 alongside the apoptotic/necrotic cell numbers by terminal deoxynucleotidyl transferase dUTP nick end labeling technique. The PC hepatic tissue also had substantially elevated pro-oxidants (malondialdehyde [MDA]/H2 O2 /protein carbonyls) and inflammatory cytokines (interleukin 1β [IL-1β]/IL-6/IL17A/tumor necrosis factor-α), whereas the anti-inflammatory (IL-10/IL-22) and antioxidants (glutathione [GSH]/GPx/catalase enzyme [CAT]) markers declined. Hypovitaminosis D, low hepatic tissue Ca, aberrant hepatic expression of VD-metabolizing enzymes (Cyp2R1/Cyp27a1/cyp24a1), receptor and binding protein alongside Ca-membrane (CaV 1.1/CaV 3.1), and store-operated (RyR1/ITPR1) channels, and Ca-binding proteins (CAM/CAMKIIA/S100A1/S100B) were observed in the PC group. Both monotherapies decreased serum, but not tissue Cd levels, restored the targeted hepatic VD/Ca molecules' expression. However, these effects were more prominent in the VD group than the Ca group. The VDC group, contrariwise, disclosed the greatest alleviations on serum and tissue Cd, inflammatory and oxidative markers, the VD/Ca molecules and tissue integrity. In conclusion, this report is the first to reveal boosted protection for cosupplementing VD and Ca against Cd hepatotoxicity that could be due to enhanced antioxidative, anti-inflammatory, and modulation of the Ca pathways.
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Affiliation(s)
- Mohamed El-Boshy
- Faculty of Applied Medical Sciences, Department of Laboratory Medicine, Umm Al-Qura University, Makkah, Saudi Arabia.,Faculty of Veterinary Medicine, Department of Clinical Pathology, Mansoura University, Mansoura, Egypt
| | - Bassem Refaat
- Faculty of Applied Medical Sciences, Department of Laboratory Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Riyad A Almaimani
- Faculty of Medicine, Department of Biochemistry, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Abdelghany H Abdelghany
- Faculty of Applied Medical Sciences, Department of Laboratory Medicine, Umm Al-Qura University, Makkah, Saudi Arabia.,Faculty of Medicine, Department of Anatomy, Alexandria University, Alexandria, Egypt
| | - Jawwad Ahmad
- Faculty of Applied Medical Sciences, Department of Laboratory Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Shakir Idris
- Faculty of Applied Medical Sciences, Department of Laboratory Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Hussain Almasmoum
- Faculty of Applied Medical Sciences, Department of Laboratory Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Amani A Mahbub
- Faculty of Applied Medical Sciences, Department of Laboratory Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Mazen M Ghaith
- Faculty of Applied Medical Sciences, Department of Laboratory Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Mohammad A BaSalamah
- Faculty of Medicine, Department of Pathology, Umm Al-Qura University, Makkah, Saudi Arabia
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18
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Mutt SJ, Raza GS, Mäkinen MJ, Keinänen‐Kiukaanniemi S, Järvelin M, Herzig K. Vitamin D Deficiency Induces Insulin Resistance and Re‐Supplementation Attenuates Hepatic Glucose Output via the PI3K‐AKT‐FOXO1 Mediated Pathway. Mol Nutr Food Res 2020; 64:e1900728. [DOI: 10.1002/mnfr.201900728] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 10/11/2019] [Indexed: 02/06/2023]
Affiliation(s)
- Shivaprakash Jagalur Mutt
- Institute of Biomedicine, Department of PhysiologyUniversity of Oulu 90014 Oulu Finland
- Biocenter of OuluUniversity of Oulu 90014 Oulu Finland
- Medical Research CenterUniversity of Oulu and Oulu University Hospital 90014 Oulu Finland
| | - Ghulam Shere Raza
- Institute of Biomedicine, Department of PhysiologyUniversity of Oulu 90014 Oulu Finland
- Biocenter of OuluUniversity of Oulu 90014 Oulu Finland
| | - Markus J Mäkinen
- Medical Research CenterUniversity of Oulu and Oulu University Hospital 90014 Oulu Finland
- Cancer and Translational Research Unit, Department of PathologyUniversity of Oulu 90014 Oulu Finland
| | - Sirkka Keinänen‐Kiukaanniemi
- Center for Life Course Health Research, Faculty of MedicineUniversity of Oulu 90014 Oulu Finland
- Unit of General Practice and Primary CareOulu University Hospital 90220 Oulu Finland
- Institute of Health SciencesUniversity of Oulu 90014 Oulu Finland
| | - Marjo‐Riitta Järvelin
- Biocenter of OuluUniversity of Oulu 90014 Oulu Finland
- Center for Life Course Health Research, Faculty of MedicineUniversity of Oulu 90014 Oulu Finland
- Institute of Health SciencesUniversity of Oulu 90014 Oulu Finland
- Unit of General Practice and Primary CareOulu University Hospital 90220 Oulu Finland
- Department of Children, Young People and FamiliesNational Institute for Health and Welfare 90101 Oulu Finland
| | - Karl‐Heinz Herzig
- Institute of Biomedicine, Department of PhysiologyUniversity of Oulu 90014 Oulu Finland
- Biocenter of OuluUniversity of Oulu 90014 Oulu Finland
- Medical Research CenterUniversity of Oulu and Oulu University Hospital 90014 Oulu Finland
- Department of Gastroenterology and MetabolismPoznan University of Medical Sciences 61–701 Poznan Poland
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Jian T, Lü H, Ding X, Wu Y, Zuo Y, Li J, Chen J, Gu H. Polyphenol-rich Trapa quadrispinosa pericarp extract ameliorates high-fat diet induced non-alcoholic fatty liver disease by regulating lipid metabolism and insulin resistance in mice. PeerJ 2019; 7:e8165. [PMID: 31803542 PMCID: PMC6886490 DOI: 10.7717/peerj.8165] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Accepted: 11/05/2019] [Indexed: 02/06/2023] Open
Abstract
In China, Trapa quadrispinosa (also called water caltrop) has long been used as a function food and folk medicine to treat diabetes mellitus for years. In the present study, the extract of T. quadrispinosa pericarp (TQPE) which mainly contains hydrolysable tannins was prepared to investigate the potential therapeutic action in non-alcoholic fatty liver disease (NAFLD) mice induced by high fat-diet (HFD). After the administration of TQPE (15, 30 mg/kg/day) for 8 weeks, the increased weight of body and liver were significantly suppressed. TQPE also ameliorated liver lipid deposition and reduced lipids parameters of blood in mice. Moreover, TQPE attenuated oxidative stress and showed a hepatoprotective effect in mice. TQPE was also found to decrease the value of homeostatic model assessment for insulin resistance. In addition, TQPE administration increased the phosphorylation of AMP-activated protein kinase (AMPK) and Acetyl-CoA carboxylase (ACC) and inhibited sterol regulatory element-binding protein (SREBP) in the liver tissue. Meanwhile, TQPE elevated insulin receptor substrate-1 (IRs-1) and protein kinase B (Akt) phosphorylation. These results reflected that, as a nature product, TQPE is a potential agent for suppressing the process of NAFLD via regulation of the AMPK/SREBP/ACC and IRs-1/Akt pathways.
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Affiliation(s)
- Tunyu Jian
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Han Lü
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Xiaoqin Ding
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Yuexian Wu
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Yuanyuan Zuo
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Jiawei Li
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Jian Chen
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China.,Department of Food Science and Technology, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing, China
| | - Hong Gu
- Department of Colorectal Surgery, Jiangyin Hospital of Traditional Chinese Medicine, Jiangyin, China
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Kusu H, Yoshida H, Kudo M, Okuyama M, Harada N, Tsuji‐Naito K, Akagawa M. Tomatidine Reduces Palmitate‐Induced Lipid Accumulation by Activating AMPK via Vitamin D Receptor‐Mediated Signaling in Human HepG2 Hepatocytes. Mol Nutr Food Res 2019; 63:e1801377. [DOI: 10.1002/mnfr.201801377] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Hikari Kusu
- Division of Applied Life SciencesGraduate School of Life and Environmental SciencesOsaka Prefecture University Sakai 599‐8531 Japan
| | - Hiroki Yoshida
- Division of Applied Life SciencesGraduate School of Life and Environmental SciencesOsaka Prefecture University Sakai 599‐8531 Japan
| | - Michiko Kudo
- DHC Corporation LaboratoriesDivision 2, 2‐42 Hamada Mihama‐ku Chiba 261‐0025 Japan
| | - Mai Okuyama
- Division of Applied Life SciencesGraduate School of Life and Environmental SciencesOsaka Prefecture University Sakai 599‐8531 Japan
| | - Naoki Harada
- Division of Applied Life SciencesGraduate School of Life and Environmental SciencesOsaka Prefecture University Sakai 599‐8531 Japan
| | - Kentaro Tsuji‐Naito
- DHC Corporation LaboratoriesDivision 2, 2‐42 Hamada Mihama‐ku Chiba 261‐0025 Japan
| | - Mitsugu Akagawa
- Division of Applied Life SciencesGraduate School of Life and Environmental SciencesOsaka Prefecture University Sakai 599‐8531 Japan
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21
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Moukayed M, Grant WB. Linking the metabolic syndrome and obesity with vitamin D status: risks and opportunities for improving cardiometabolic health and well-being. Diabetes Metab Syndr Obes 2019; 12:1437-1447. [PMID: 31496777 PMCID: PMC6701609 DOI: 10.2147/dmso.s176933] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 07/16/2019] [Indexed: 12/11/2022] Open
Abstract
The global death toll from noncommunicable diseases is exceptionally high, reported to cause 71% of global deaths worldwide. Metabolic syndrome risk factors, especially excessive adiposity and obesity, are at the heart of the problem resulting in increased co-morbidities such as cardiometabolic diseases and cancer, increased health costs, poorer quality of life, and shortened survival. Vitamin D3 can positively reverse many of these adverse effects and outcomes through blocking signaling mechanisms that predispose to cardiometabolic and metastatic disease. As an affordable natural agent, vitamin D3 can be used to counteract obesity-induced inflammation, block early adipogenesis, enhance glucose uptake, counteract hyperleptinemia, ameliorate insulin resistance, and reduce hypertension. This is supported by data from in vitro, in vivo and epidemiological studies and clinical trials. We propose that everyone in general and obese patients in particular consider raising 25-hydroxyvitamin D levels through UVB exposure and/or supplemental vitamin D3 intake to reduce cardiometabolic and metastatic disease and increase longevity.
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Affiliation(s)
- Meis Moukayed
- School of Arts and Sciences, American University in Dubai, Dubai, UAE
| | - William B Grant
- Sunlight, Nutrition, and Health Research Center, San Francisco, CA94164-1603, USA
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22
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Leung PS. The Modulatory Action of Vitamin D on the Renin-Angiotensin System and the Determination of Hepatic Insulin Resistance. Molecules 2019; 24:molecules24132479. [PMID: 31284538 PMCID: PMC6651371 DOI: 10.3390/molecules24132479] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 07/02/2019] [Accepted: 07/03/2019] [Indexed: 11/16/2022] Open
Abstract
Vitamin D deficiency or hypovitaminosis D is associated with increased risks of insulin resistance, type 2 diabetes mellitus (T2DM) and its related non-alcoholic fatty liver disease (NAFLD). Meanwhile, inappropriate over-activation of the renin–angiotensin system (RAS) in the liver leads to the hepatic dysfunction and increased risk of T2DM, such as abnormalities in lipid and glucose metabolism. Our previous findings have shown that calcitriol, an active metabolite of vitamin D, reduces hepatic triglyceride accumulation and glucose output in diabetic db/db mice and human hepatocellular cell HepG2 cells under insulin-resistant conditions. Notwithstanding the existence of this evidence, the protective action of vitamin D in the modulation of overexpressed RAS-induced metabolic abnormalities in the liver under insulin resistance remains to be elusive and investigated. Herein, we have reported the potential interaction between vitamin D and RAS; and its beneficial effects on the expression and function of the RAS components in HepG2 cells and primary hepatocytes under insulin-resistance states. Our study findings suggest that hormonal vitamin D (calcitriol) has modulatory action on the inappropriate upregulation of the hepatic RAS under insulin-resistant conditions. If confirmed, vitamin D supplementation might provide a nutraceutical potential as a cost-effective approach for the management of hepatic metabolic dysfunction as observed in T2DM and related NAFLD.
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Affiliation(s)
- Po Sing Leung
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.
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23
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Enhanced remedial effects for vitamin D3 and calcium co-supplementation against pre-existing lead nephrotoxicity in mice: The roles of renal calcium homeostatic molecules. Biochim Biophys Acta Mol Basis Dis 2019; 1865:512-524. [DOI: 10.1016/j.bbadis.2018.11.023] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 11/09/2018] [Accepted: 11/24/2018] [Indexed: 12/31/2022]
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Wang CM, Chang CS, Chang YF, Wu SJ, Chiu CJ, Hou MT, Chen CY, Liu PY, Wu CH. Inverse Relationship between Metabolic Syndrome and 25-Hydroxyvitamin D Concentration in Elderly People without Vitamin D deficiency. Sci Rep 2018; 8:17052. [PMID: 30451913 PMCID: PMC6242887 DOI: 10.1038/s41598-018-35229-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 11/01/2018] [Indexed: 02/07/2023] Open
Abstract
Vitamin D status is inversely associated with the prevalence of metabolic syndrome (MetS). Whether this is true in the elderly without vitamin D deficiency is rarely investigated. Our data source is a cross-sectional survey of 1,966 community-dwelling elderly Taiwanese in 2012. An overnight fasting blood were obtained for biochemistry variables. Vitamin D deficiency was defined as serum 25-hydroxyvitamin D3 [25(OH)D] concentration <20 ng/mL. MetS is defined using modified ATP-III criteria. Of 523 participants without vitamin D deficiency (Men/Women = 269/254, age = 76.0 ± 6.2 years old [65–102 years old]), mean 25(OH)D was 44.0 ± 11.1 ng/mL, and the MetS prevalence of MS was 46.5%. Serum 25(OH)D was negatively associated with osteocalcin, the homeostatic model assessment insulin resistance (HOMA-IR) index, body mass index (BMI), and glycated hemoglobin A1c. Participants with more MetS features have lower serum 25(OH)D and osteocalcin. Binary logistic regression models showed that 25(OH)D, physical activity, and osteocalcin were negatively independent MetS factors, but that the HOMA-IR index, BMI, and being female were positively independent factors. The risk of MetS was progressively lower along with the increased 25(OH)D concentration, even above 60 ng/mL. In conclusion, a low 25(OH)D concentration is an independent risk factor for MetS in elderly people without vitamin D deficiency.
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Affiliation(s)
- Chun-Min Wang
- Department of Neurology, National Cheng Kung University Hospital and College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chin-Sung Chang
- Department of Family Medicine, National Cheng Kung University Hospital and College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yin-Fan Chang
- Department of Family Medicine, National Cheng Kung University Hospital and College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Shin-Jiuan Wu
- Department of Food Nutrition, Chung Hwa University Medical Technology, Tainan, Taiwan
| | - Ching-Ju Chiu
- Institute of Gerontology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Meng-Tzu Hou
- Department of Physical Therapy and Assistive Technology, National Yang-Ming University, Taipei, Taiwan
| | - Chuan-Yu Chen
- Department of Family Medicine, National Cheng Kung University Hospital and College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Ping-Yen Liu
- Department of Internal Medicine, Division of Cardiology, National Cheng Kung University Hospital and College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chih-Hsing Wu
- Department of Family Medicine, National Cheng Kung University Hospital and College of Medicine, National Cheng Kung University, Tainan, Taiwan. .,Department of Food Nutrition, Chung Hwa University Medical Technology, Tainan, Taiwan.
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25
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Yan Z, Shyr ZA, Fortunato M, Welscher A, Alisio M, Martino M, Finck BN, Conway H, Remedi MS. High-fat-diet-induced remission of diabetes in a subset of K ATP -GOF insulin-secretory-deficient mice. Diabetes Obes Metab 2018; 20:2574-2584. [PMID: 29896801 PMCID: PMC6407888 DOI: 10.1111/dom.13423] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 06/04/2018] [Accepted: 06/09/2018] [Indexed: 02/06/2023]
Abstract
AIMS To examine the effects of a high-fat-diet (HFD) on monogenic neonatal diabetes, without the confounding effects of compensatory hyperinsulinaemia. METHODS Mice expressing KATP channel gain-of-function (KATP -GOF) mutations, which models human neonatal diabetes, were fed an HFD. RESULTS Surprisingly, KATP -GOF mice exhibited resistance to HFD-induced obesity, accompanied by markedly divergent blood glucose control, with some KATP -GOF mice showing persistent diabetes (KATP -GOF-non-remitter [NR] mice) and others showing remission of diabetes (KATP -GOF-remitter [R] mice). Compared with the severely diabetic and insulin-resistant KATP -GOF-NR mice, HFD-fed KATP -GOF-R mice had lower blood glucose, improved insulin sensitivity, and increased circulating plasma insulin and glucagon-like peptide-1 concentrations. Strikingly, while HFD-fed KATP -GOF-NR mice showed increased food intake and decreased physical activity, reduced whole body fat mass and increased plasma lipids, KATP -GOF-R mice showed similar features to those of control littermates. Importantly, KATP -GOF-R mice had restored insulin content and β-cell mass compared with the marked loss observed in both HFD-fed KATP -GOF-NR and chow-fed KATP -GOF mice. CONCLUSION Together, our results suggest that restriction of dietary carbohydrates and caloric replacement by fat can induce metabolic changes that are beneficial in reducing glucotoxicity and secondary consequences of diabetes in a mouse model of insulin-secretory deficiency.
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Affiliation(s)
- Zihan Yan
- Department of Medicine, Division of Endocrinology, Metabolism and Lipid Research, Washington University School of Medicine, 660 South Euclid Avenue, St. Louis, Missouri 63110, USA
| | - Zeenat A. Shyr
- Department of Medicine, Division of Endocrinology, Metabolism and Lipid Research, Washington University School of Medicine, 660 South Euclid Avenue, St. Louis, Missouri 63110, USA
| | - Manuela Fortunato
- Department of Medicine, Division of Endocrinology, Metabolism and Lipid Research, Washington University School of Medicine, 660 South Euclid Avenue, St. Louis, Missouri 63110, USA
| | - Alecia Welscher
- Department of Medicine, Division of Endocrinology, Metabolism and Lipid Research, Washington University School of Medicine, 660 South Euclid Avenue, St. Louis, Missouri 63110, USA
| | - Mariana Alisio
- Department of Medicine, Division of Endocrinology, Metabolism and Lipid Research, Washington University School of Medicine, 660 South Euclid Avenue, St. Louis, Missouri 63110, USA
| | - Michael Martino
- Department of Medicine, Division of Geriatrics and Nutritional Science, Washington University School of Medicine, 660 South Euclid Avenue, St. Louis, Missouri 63110, USA
| | - Brian N. Finck
- Department of Medicine, Division of Geriatrics and Nutritional Science, Washington University School of Medicine, 660 South Euclid Avenue, St. Louis, Missouri 63110, USA
| | - Hannah Conway
- Department of Medicine, Division of Endocrinology, Metabolism and Lipid Research, Washington University School of Medicine, 660 South Euclid Avenue, St. Louis, Missouri 63110, USA
| | - Maria S. Remedi
- Department of Medicine, Division of Endocrinology, Metabolism and Lipid Research, Washington University School of Medicine, 660 South Euclid Avenue, St. Louis, Missouri 63110, USA
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Sun X, Cao ZB, Tanisawa K, Oshima S, Higuchi M. Serum 25-Hydroxyvitamin D Concentrations Are Inversely Correlated with Hepatic Lipid Content in Male Collegiate Football Athletes. Nutrients 2018; 10:nu10070942. [PMID: 30037116 PMCID: PMC6073760 DOI: 10.3390/nu10070942] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 07/19/2018] [Accepted: 07/20/2018] [Indexed: 12/19/2022] Open
Abstract
Lower serum 25-hydroxyvitamin D (25(OH)D) concentrations are associated with more weight and fat mass gain in adults in the general population, but it is unknown whether this is the case in collegiate football athletes with greater body weight. This study aimed to investigate associations of serum 25(OH)D concentrations with body fat and ectopic fat accumulation, and to determine which fat indicators are closely related to serum 25(OH)D in male collegiate football athletes. Thirty-four collegiate athletes aged 21 years were recruited. Serum 25(OH)D concentrations and the levels of visceral fat area (VFA), vastus lateralis intramyocellular lipid (IMCL), extramyocellular lipid (EMCL), and intrahepatic lipid (IHCL) were measured. Serum 25(OH)D concentrations were negatively associated with the IHCL values (r = −0.372, p = 0.030), and the relationship remained after adjustment for several factors (r = −0.378, p = 0.047). Additionally, multiple stepwise regression analysis of IHCL content as the dependent variable indicated that 25(OH)D concentrations were a stronger predictor of IHCL content (β = −0.363, p = 0.030) than % body fat and VO2peakFFM. Higher serum 25(OH)D concentrations are more closely related to lower IHCL content rather than any other fat indicators, suggesting that increasing serum 25(OH)D concentrations may have some effect that inhibits lipid accumulation in hepatic tissue, especially in heavy athletes.
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Affiliation(s)
- Xiaomin Sun
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China.
- Global Health Institute, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China.
- Faculty of Sport Sciences, Waseda University, Tokorozawa, Saitama 359-1192, Japan.
| | - Zhen-Bo Cao
- School of Kinesiology, Shanghai University of Sport, 399 Chang Hai Road, Shanghai 200438, China.
| | - Kumpei Tanisawa
- Faculty of Sport Sciences, Waseda University, Tokorozawa, Saitama 359-1192, Japan.
- Department of Physical Activity Research, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo 162-8636, Japan.
| | - Satomi Oshima
- Faculty of Sport Sciences, Waseda University, Tokorozawa, Saitama 359-1192, Japan.
| | - Mitsuru Higuchi
- Faculty of Sport Sciences, Waseda University, Tokorozawa, Saitama 359-1192, Japan.
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27
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Hyppönen E, Boucher BJ. Adiposity, vitamin D requirements, and clinical implications for obesity-related metabolic abnormalities. Nutr Rev 2018; 76:678-692. [DOI: 10.1093/nutrit/nuy034] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Affiliation(s)
- Elina Hyppönen
- Australian Centre for Population Health Research, Sansom Institute for Health Research, University of South Australia, South Australian Health & Medical Research Institute, Adelaide, Australia
| | - Barbara J Boucher
- Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
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28
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Abdel-Rehim WM, El-Tahan RA, El-Tarawy MA, Shehata RR, Kamel MA. The possible antidiabetic effects of vitamin D receptors agonist in rat model of type 2 diabetes. Mol Cell Biochem 2018; 450:105-112. [DOI: 10.1007/s11010-018-3377-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2017] [Accepted: 06/11/2018] [Indexed: 01/23/2023]
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29
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Genetic and non-genetic effects of increased sun and vitamin D exposure: role in the observed healthy changes in cardiometabolic risk factors in Iranian children. Public Health Nutr 2018; 21:3125-3128. [PMID: 29871711 DOI: 10.1017/s1368980018001180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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30
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Wang M, Li S, Wang F, Zou J, Zhang Y. Aerobic exercise regulates blood lipid and insulin resistance via the toll‑like receptor 4‑mediated extracellular signal‑regulated kinases/AMP‑activated protein kinases signaling pathway. Mol Med Rep 2018; 17:8339-8348. [PMID: 29658605 DOI: 10.3892/mmr.2018.8863] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 08/09/2017] [Indexed: 11/06/2022] Open
Abstract
Diabetes mellitus is a complicated metabolic disease with symptoms of hyperglycemia, insulin resistance, chronic damage and dysfunction of tissues, and metabolic syndrome for insufficient insulin production. Evidence has indicated that exercise treatments are essential in the progression of type‑ІІ diabetes mellitus, and affect insulin resistance and activity of islet β‑cells. In the present study, the efficacy and signaling mechanism of aerobic exercise on blood lipids and insulin resistance were investigated in the progression of type‑ІІ diabetes mellitus. Body weight, glucose metabolism and insulin serum levels were investigated in mouse models of type‑ІІ diabetes mellitus following experienced aerobic exercise. Expression levels of inflammatory factors, interleukin (IL)‑6, high‑sensitivity C‑reactive protein, tumor necrosis factor‑α and leucocyte differentiation antigens, soluble CD40 ligand in the serum were analyzed in the experimental mice. In addition, expression levels of toll‑like receptor 4 (TLR‑4) were analyzed in the liver cells of experimental mice. Changes of oxidative stress indicators, including reactive oxygen species, superoxide dismutase, glutathione and catalase were examined in the liver cells of experimental mice treated by aerobic exercise. Expression levels and activity of extracellular signal‑regulated kinases (ERK) and AMP‑activated protein kinase (AMPK) signaling pathways were investigated in the liver cells of mouse models of type‑ІІ diabetes mellitus after undergoing aerobic exercise. Aerobic exercise decreased the expression levels of inflammatory factors in the serum of mouse models of type‑ІІ diabetes mellitus. The results indicated that aerobic exercise downregulated oxidative stress indicators in liver cells from mouse models of type‑ІІ diabetes mellitus. In addition, the ERK and AMPK signaling pathways were inactivated by aerobic exercise in liver cells in mouse models of type‑ІІ diabetes mellitus. The activity of ERK and AMPK, and the function of islet β‑cells were observed to be improved in experimental mice treated with aerobic exercise. Furthermore, blood lipid metabolism and insulin resistance were improved by treatment with aerobic exercise. Body weight and glucose concentration of serology was markedly improved in mouse models of type‑ІІ diabetes mellitus. Furthermore, TLR‑4 inhibition markedly promoted ERK and AMPK expression levels and activity. Thus, these results indicate that aerobic exercise may improve blood lipid metabolism, insulin resistance and glucose plasma concentration in mouse models of type‑ІІ diabetes mellitus. Thus indicating aerobic exercise is beneficial for improvement of blood lipid and insulin resistance via the TLR‑4‑mediated ERK/AMPK signaling pathway in the progression of type‑ІІ diabetes mellitus.
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Affiliation(s)
- Mei Wang
- State General Administration of Sports, Sports Science Institute, Mass Sports Research Center, Beijing 100061, P.R. China
| | - Sen Li
- Jiangsu Institute of Sports Science, Nanjing, Jiangsu 210033, P.R. China
| | - Fubaihui Wang
- State General Administration of Sports, Sports Science Institute, Mass Sports Research Center, Beijing 100061, P.R. China
| | - Jinhui Zou
- Guangxi Institute of Sports Science Mass Sports Research, Nanning, Guangxi 210014, P.R. China
| | - Yanfeng Zhang
- State General Administration of Sports, Sports Science Institute, Mass Sports Research Center, Beijing 100061, P.R. China
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Boucher BJ, Leung PS. "Maternal High-Fat-Diet Programs Rat Offspring Liver Fatty Acid Metabolism": Might Reduced Vitamin D Availability Due to Increases in Maternal Body Fat Contribute to This Effect? Lipids 2015. [PMID: 26224605 DOI: 10.1007/s11745-015-4048-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Barbara J Boucher
- The Blizard Institute of Cell and Molecular Medicine, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK,
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