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Oliveira INND, Macedo-Silva A, Coutinho-Cruz L, Sanchez-Almeida J, Tavares MPS, Majerowicz D. Effects of vitamin D supplementation on metabolic syndrome parameters in patients with obesity or diabetes in Brazil, Europe, and the United States: A systematic review and meta-analysis. J Steroid Biochem Mol Biol 2024; 243:106582. [PMID: 38992391 DOI: 10.1016/j.jsbmb.2024.106582] [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: 12/22/2023] [Revised: 07/05/2024] [Accepted: 07/09/2024] [Indexed: 07/13/2024]
Abstract
Plasma 25-dihydroxyvitamin D levels appear reduced in patients with obesity or type 2 diabetes, as reported in several observational studies. However, the association between these reduced hormone levels and metabolic parameters is unclear. In any case, vitamin D supplementation in patients with Metabolic Syndrome is standard. Still, the impacts of this supplementation on conditions such as glycemia, blood pressure, and lipidemia are debatable. Based on this question, we carried out a systematic review and meta-analysis of randomized clinical trials in Brazil, Europe, and the United States that analyzed the effects of vitamin D supplementation on Metabolic Syndrome parameters in patients with obesity or type 2 diabetes. Our search yielded 519 articles and included 12 randomized controlled trials in the meta-analysis. Vitamin D supplementation had no effect on any of the outcomes analyzed (fasting blood glucose and insulinemia, glycated hemoglobin, HOMA index, systolic and diastolic blood pressure, weight, waist circumference, total cholesterol, LDL and HDL, and triglycerides). However, subgroup analyses indicated that using vitamin D up to 2000 IU daily reduced participants' fasting blood glucose and glycated hemoglobin. Furthermore, the intervention reduced diastolic blood pressure only in participants with vitamin D deficiency. At least two studies showed a high risk of bias using the Rob2 protocol. According to the GRADE protocol, the evidence quality varied from moderate to very low. These results indicate that vitamin D supplementation does not improve patients' metabolic parameters and that the association between plasma 25-dihydroxyvitamin D levels and Metabolic Syndrome may not be causal but caused by other confounding characteristics. However, in any case, the quality of evidence is still low, and more randomized clinical trials are essential to clarify these relationships.
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Affiliation(s)
| | - Alessa Macedo-Silva
- Programa de Pós-Graduação em Biociências, Universidade do Estado do Rio de Janeiro, Brazil
| | | | | | | | - David Majerowicz
- Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Brazil; Programa de Pós-Graduação em Biociências, Universidade do Estado do Rio de Janeiro, Brazil.
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Lin X, Fang Y, Hu H, Ye Z. Efficacy and safety of transcutaneous auricular vagus nerve stimulation (ta-VNS) in the treatment of tinnitus: protocol for an updated systematic review and meta-analysis. BMJ Open 2024; 14:e082906. [PMID: 38772894 PMCID: PMC11110564 DOI: 10.1136/bmjopen-2023-082906] [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: 12/06/2023] [Accepted: 05/10/2024] [Indexed: 05/23/2024] Open
Abstract
INTRODUCTION With an increasing incidence and significant effects on patients, tinnitus has become a major disease burden. There is a dearth of therapies with established efficacy for tinnitus. Transcutaneous auricular vagus nerve stimulation (ta-VNS) is being investigated as a potential therapy for tinnitus, but the current body of evidence remains inconclusive due to conflicting results across different studies. As a result, this protocol aims to synthesise and update the evidence to clarify whether ta-VNS is effective and safe for alleviating tinnitus. METHODS AND ANALYSIS To identify relevant randomised controlled trials (RCTs), seven representative bibliographical databases will be searched from their inception to December 2023: PubMed, Embase (via OVID), Cochrane Library, Chinese National Knowledge Infrastructure, Wangfang Database, Chinese BioMedical Literature Database, and Chongqing VIP Chinese Science and Technology Periodical Database. Publications in English or Chinese will be considered for inclusion. RCTs comparing ta-VNS with active treatments, no intervention, waitlist control or sham ta-VNS in adult patients with subjective tinnitus will be included. Studies on objective tinnitus will be excluded. Primary outcome is tinnitus symptom severity measured by validated scales. With all eligible trials included, when applicable, quantitative analysis via meta-analyses will be performed using RevMan V.5.4.1 software. Otherwise, a qualitative analysis will be conducted. The methodological quality of the included RCTs will be assessed using the Risk of Bias 2.0 tool. Sensitivity analyses, subgroup analysis and publication bias evaluation will also be performed. The Grading of Recommendations, Assessment, Development, and Evaluation approach will be used to grade the certainty of the evidence. ETHICS AND DISSEMINATION Ethical approval is not required for this systematic review, as no primary data will be collected. The results will be reported and disseminated through publication in a peer-reviewed journal. PROSPERO REGISTRATION NUMBER CRD42022351917.
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Affiliation(s)
- Xiaoqi Lin
- Department of Acupuncture and Moxibustion, the Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
- The Third Clinical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Yiyan Fang
- The Third Clinical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Hantong Hu
- Department of Acupuncture and Moxibustion, the Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
- The Third Clinical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Ziyu Ye
- Clinical Medical College of Acupuncture Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China
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Papakonstantinou E, Zacharodimos N, Georgiopoulos G, Athanasaki C, Bothou DL, Tsitsou S, Lympaki F, Vitsou-Anastasiou S, Papadopoulou OS, Delialis D, Alexopoulos EC, Petsiou E, Keramida K, Doulgeraki AI, Patsopoulou IM, Nychas GJE, Tassou CC. Two-Month Consumption of Orange Juice Enriched with Vitamin D3 and Probiotics Decreases Body Weight, Insulin Resistance, Blood Lipids, and Arterial Blood Pressure in High-Cardiometabolic-Risk Patients on a Westernized Type Diet: Results from a Randomized Clinical Trial. Nutrients 2024; 16:1331. [PMID: 38732578 PMCID: PMC11085203 DOI: 10.3390/nu16091331] [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: 03/20/2024] [Revised: 04/20/2024] [Accepted: 04/26/2024] [Indexed: 05/13/2024] Open
Abstract
This study examined the effects of orange juice (OJ) supplemented with vitamin D3 (2000 IU) and probiotics (Lacticaseibacillus casei Shirota and Lacticaseibacillus rhamnosus GG, 108 cfu/mL) on cardiometabolic risk factors in overweight and obese adults following a Westernized-type diet. Fifty-three high-risk individuals were randomly assigned to one of two groups. Over 8 weeks, one group consumed a vitamin D3 and probiotic-enriched OJ and the other regular OJ (control). Diets remained unchanged and were documented through food diaries. Measures of metabolic and inflammatory markers and blood pressure were measured at the start and end of the study. Post-intervention, the enriched OJ group showed the following significant metabolic improvements (without changes in triglycerides, inflammation, or central blood pressure): reduced fasting insulin, peripheral blood pressure, body weight (-1.4 kg 95% CI: -2.4, -0.4), energy (-270 kcal 95% CI: -553.2, -13.7), macronutrient (dietary fat -238 kcal 95% CI: -11.9, -1.0; carbohydrates -155 kcal 95% CI: -282.4, -27.3; sugars -16.1 g 95% CI: -11.9, -1.0) intake, and better lipid profiles (total cholesterol -10.3 mg/dL 95% CI: -21.4, 0.9; LDL-C -7 mg/dL 95% CI: -13.5, -0.5). The enriched OJ led to weight loss, less energy/macronutrient consumption, improved lipid profiles, and increased insulin sensitivity after 8 weeks in those following a Westernized diet, thus indicating potential benefits for cardiometabolic risk. This study was a part of FunJuice-T2EDK-01922, which was funded by the EU Regional Development Fund and Greek National Resources.
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Affiliation(s)
- Emilia Papakonstantinou
- Laboratory of Dietetics and Quality of Life, Department of Food Science and Human Nutrition, School of Food and Nutritional Sciences, Agricultural University of Athens, 11855 Athens, Greece; (N.Z.); (C.A.); (D.-L.B.); (S.T.); (F.L.)
| | - Nikolaos Zacharodimos
- Laboratory of Dietetics and Quality of Life, Department of Food Science and Human Nutrition, School of Food and Nutritional Sciences, Agricultural University of Athens, 11855 Athens, Greece; (N.Z.); (C.A.); (D.-L.B.); (S.T.); (F.L.)
| | - Georgios Georgiopoulos
- Department of Clinical Therapeutics, Alexandra Hospital, National and Kapodistrian University of Athens, 80 Vasilissis Sophias Ave, 11528 Athens, Greece; (G.G.)
| | - Christina Athanasaki
- Laboratory of Dietetics and Quality of Life, Department of Food Science and Human Nutrition, School of Food and Nutritional Sciences, Agricultural University of Athens, 11855 Athens, Greece; (N.Z.); (C.A.); (D.-L.B.); (S.T.); (F.L.)
| | - Dionysia-Lydia Bothou
- Laboratory of Dietetics and Quality of Life, Department of Food Science and Human Nutrition, School of Food and Nutritional Sciences, Agricultural University of Athens, 11855 Athens, Greece; (N.Z.); (C.A.); (D.-L.B.); (S.T.); (F.L.)
| | - Sofia Tsitsou
- Laboratory of Dietetics and Quality of Life, Department of Food Science and Human Nutrition, School of Food and Nutritional Sciences, Agricultural University of Athens, 11855 Athens, Greece; (N.Z.); (C.A.); (D.-L.B.); (S.T.); (F.L.)
| | - Foteini Lympaki
- Laboratory of Dietetics and Quality of Life, Department of Food Science and Human Nutrition, School of Food and Nutritional Sciences, Agricultural University of Athens, 11855 Athens, Greece; (N.Z.); (C.A.); (D.-L.B.); (S.T.); (F.L.)
| | - Stamatia Vitsou-Anastasiou
- Institute of Technology of Agricultural Products, Hellenic Agricultural Organization “DIMITRA”, 1, S. Venizelou, Lykovrissi, 14123 Attiki, Greece; (S.V.-A.); (O.S.P.); (C.C.T.)
- Laboratory of Microbiology and Biotechnology of Foods, Department of Food Science and Human Nutrition, School of Food and Nutritional Sciences, Agricultural University of Athens, 75 Iera Odos, 11855 Athens, Greece;
| | - Olga S. Papadopoulou
- Institute of Technology of Agricultural Products, Hellenic Agricultural Organization “DIMITRA”, 1, S. Venizelou, Lykovrissi, 14123 Attiki, Greece; (S.V.-A.); (O.S.P.); (C.C.T.)
| | - Dimitrios Delialis
- Department of Clinical Therapeutics, Alexandra Hospital, National and Kapodistrian University of Athens, 80 Vasilissis Sophias Ave, 11528 Athens, Greece; (G.G.)
| | | | - Eleni Petsiou
- Henry Dunant Hospital, 107 Mesogeion Ave, 11526 Athens, Greece;
| | - Kalliopi Keramida
- Cardiology Department, General Anticancer Oncological Hospital Agios Savvas, 171 Alexandras Ave, 11522 Athens, Greece;
| | - Agapi I. Doulgeraki
- Laboratory of Food Microbiology and Hygiene, Department of Food Science and Technology, School of Agriculture, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Ismini-Maria Patsopoulou
- Institute of Technology of Agricultural Products, Hellenic Agricultural Organization “DIMITRA”, 1, S. Venizelou, Lykovrissi, 14123 Attiki, Greece; (S.V.-A.); (O.S.P.); (C.C.T.)
| | - George-John E. Nychas
- Laboratory of Microbiology and Biotechnology of Foods, Department of Food Science and Human Nutrition, School of Food and Nutritional Sciences, Agricultural University of Athens, 75 Iera Odos, 11855 Athens, Greece;
- Shandong Agricultural University, Tai’an 271002, China
| | - Chrysoula C. Tassou
- Institute of Technology of Agricultural Products, Hellenic Agricultural Organization “DIMITRA”, 1, S. Venizelou, Lykovrissi, 14123 Attiki, Greece; (S.V.-A.); (O.S.P.); (C.C.T.)
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Wang J, Zhang Y, Wu Q, Bian Z, Luo N, Sun J, Yu B, Fang J. The efficacy and safety of electroacupuncture for diabetic peripheral neuropathy: A protocol for a systematic review and meta-analysis. PLoS One 2024; 19:e0302228. [PMID: 38662762 PMCID: PMC11045088 DOI: 10.1371/journal.pone.0302228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Accepted: 03/28/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND Diabetic peripheral neuropathy (DPN) is a chronic complication of diabetes mellitus, which is the most common neuropathy worldwide. Owing to the inadequacies of existing treatment methods, managing DPN remains a significant challenge. Studies suggest that electroacupuncture (EA) could potentially serve as a beneficial alternative treatment for this condition. Nevertheless, there is still inadequate proof of its therapeutic effectiveness and safety. As a result, the goal of this protocol is to methodically compile the data pertaining to the effectiveness and security of EA in the management of DPN. METHODS To find appropriate randomized controlled trials (RCTs), nine reliable databases in the English and Chinese languages will be examined. RevMan5.3 will be used to combine the retrieved data and perform meta-analyses. The methodological quality of the included RCTs will be evaluated using the Cochrane Risk of Bias Assessment 2.0 tool. The Grades of Recommendations, Assessment, Development, and Evaluation (GRADE) system will be utilized to evaluate the degree of strength and certainty of the evidence. We will also perform publication bias, sensitivity and subgroup analyses. DISCUSSION This protocol describes the intended scope and approach for a forthcoming systematic review and meta-analysis that will inform therapeutic decision-making by offering current information on the efficacy and safety of EA in the treatment of DPN. The results of the study will help standardize strategies for EA in the treatment of DPN.
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Affiliation(s)
- Jiawei Wang
- The Third Clinical College of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Yajun Zhang
- The Third Clinical College of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Qiqi Wu
- Department of Acupuncture, Moxibustion and Massage, Wenzhou Central Hospital, Wenzhou, Zhejiang, China
| | - Zhiyuan Bian
- The Third Clinical College of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Ning Luo
- The Third Clinical College of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Jing Sun
- Department of Acupuncture and Moxibustion, The Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Binyan Yu
- Department of Acupuncture and Moxibustion, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Jianqiao Fang
- Department of Acupuncture and Moxibustion, The Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
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Daley DK, Myrie SB. Diabetes and vitamin D: The effect of insulin sensitivity and gut microbial health. ADVANCES IN FOOD AND NUTRITION RESEARCH 2024; 109:160-184. [PMID: 38777412 DOI: 10.1016/bs.afnr.2024.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Current global estimation suggests that about 10% of adults worldwide have diabetes, thus, various strategies are needed to address the issue, including dietary factors such as vitamin D. Various studies have suggested an inverse associations between vitamin D and the risks and pathogenesis of all forms of diabetes (type 1, type 2 and gestational diabetes). The underlying mechanism is not fully understood; however, the expression of vitamin D receptors in pancreatic beta cells suggests an important physiological role for vitamin D in beta cell function. Vitamin D deficiency may impair blood glucose control and decrease insulin sensitivity by reducing insulin secretion from beta cells. Many studies suggest that vitamin D intervention may be beneficial; however, there is inconclusive evidence of the effectiveness of vitamin D supplementation on reducing the risks or managing the pathogenesis of all forms of diabetes. Part of the pathogenesis of vitamin D for reducing diabetes is thought to be related to its impact on gut microbiota profile, via the suggested prebiotic properties of vitamin D.
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Affiliation(s)
- Denise K Daley
- Department of Biology, Mount Saint Vincent University, Halifax, NS, Canada; The College of Health Sciences, University of Technology, Kingston, Jamaica
| | - Semone B Myrie
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, MB, Canada; Richardson Centre for Food Technology and Research, University of Manitoba, Winnipeg, MB, Canada.
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Mavar M, Sorić T, Bagarić E, Sarić A, Matek Sarić M. The Power of Vitamin D: Is the Future in Precision Nutrition through Personalized Supplementation Plans? Nutrients 2024; 16:1176. [PMID: 38674867 PMCID: PMC11054101 DOI: 10.3390/nu16081176] [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: 03/11/2024] [Revised: 04/10/2024] [Accepted: 04/12/2024] [Indexed: 04/28/2024] Open
Abstract
In the last few decades, vitamin D has undeniably been one of the most studied nutrients. Despite our ability to produce vitamin D through sunlight exposure, its presence in several natural food sources and fortified foods, and its widespread availability as a dietary supplement, vitamin D deficiency is a serious public health problem, affecting nearly 50% of the global population. Low serum levels of vitamin D are being associated with increased susceptibility to numerous health conditions, including respiratory infections, mental health, autoimmune diseases, and different cancer types. Although the association between vitamin D status and health is well-established, the exact beneficial effects of vitamin D are still inconclusive and indefinite, especially when considering the prevention and treatment of different health conditions and the determination of an appropriate dosage to exert those beneficial effects in various population groups. Therefore, further research is needed. With constant improvements in our understanding of individual variations in vitamin D metabolism and requirements, in the future, precision nutrition and personalized supplementation plans could prove beneficial.
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Affiliation(s)
- Mladen Mavar
- Psychiatric Hospital Ugljan, Otočkih Dragovoljaca 42, 23275 Ugljan, Croatia;
| | - Tamara Sorić
- Psychiatric Hospital Ugljan, Otočkih Dragovoljaca 42, 23275 Ugljan, Croatia;
| | - Ena Bagarić
- Almagea Ltd., Ulica Julija Knifera 4, 10020 Zagreb, Croatia;
| | - Ana Sarić
- School of Medicine, Catholic University of Croatia, Ilica 242, 10000 Zagreb, Croatia;
| | - Marijana Matek Sarić
- Department of Health Studies, University of Zadar, Splitska 1, 23000 Zadar, Croatia;
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Chen X, Xu Y, Meng X, Geng R, Wang X, Zhang G, Bai L. RETRACTED: Analysis of the association between serum levels of 25(OH)D, retinol binding protein, and Cyclooxygenase-2 and the disease severity in patients with diabetic foot ulcers. Int Wound J 2024; 21:e14502. [PMID: 37973551 PMCID: PMC10898388 DOI: 10.1111/iwj.14502] [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: 10/18/2023] [Revised: 11/04/2023] [Accepted: 11/06/2023] [Indexed: 11/19/2023] Open
Abstract
Diabetic foot ulcers (DFUs) pose significant clinical challenges, representing severe complications in diabetes mellitus patients and contributing to non-traumatic amputations. Identifying reliable biomarkers can optimize early diagnosis and improve therapeutic outcomes. This study focused on evaluating the association between serum levels of 25-hydroxyvitamin D [25-(OH)D], Serum Retinol Binding Protein (RBP), and Cyclooxygenase-2 (COX-2) in elderly DFU patients. A retrospective study involving 240 participants, from March 2020 to March 2023. The participants were segmented into three cohorts: 80 with DFUs, 80 diabetic patients without DFUs, and 80 healthy controls. Serum concentrations of the three biomarkers were assayed using methods like enzyme-linked immunosorbent assay (ELISA), chemiluminescence immunoassay, and an automated biochemistry analyser. Comparisons were made both between groups and within the DFU group based on disease severity. Statistical analysis revealed significant differences in biomarker levels across the groups (p < 0.05). COX-2 and RBP concentrations were highest in the DFU group, followed by the non-DFU diabetic group, and lowest in the control group. Conversely, 25(OH)D levels were highest in the control group, followed by the non-DFU diabetic group, and lowest in the DFU group. Within the DFU group, RBP and COX-2 levels increased with disease severity, while 25(OH)D levels decreased. These variations were especially pronounced in patients with the most severe Wagner grading. A significant positive correlation was observed between disease severity and levels of RBP (r = 0.651, p < 0.05) and COX-2 (r = 0.356, p < 0.05). Conversely, a significant negative correlation was identified between disease severity and 25(OH)D levels (r = -0.658, p < 0.05). Assessing 25(OH)D, RBP, and COX-2 serum levels offers a promising tool for evaluating the severity and progression of DFUs. Monitoring these biomarkers can enrich our understanding of the metabolic and inflammatory pathways of the disease and potentially refine therapeutic strategies.
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Affiliation(s)
- Xuehui Chen
- Ward 1, The Department of EndocrinologyThe First Affiliated Hospital of Xinxiang Medical UniversityWeihuiChina
| | - Yun Xu
- Ward 1, The Department of EndocrinologyThe First Affiliated Hospital of Xinxiang Medical UniversityWeihuiChina
| | - Xiangyu Meng
- Ward 1, The Department of EndocrinologyThe First Affiliated Hospital of Xinxiang Medical UniversityWeihuiChina
| | - Ruina Geng
- Ward 1, The Department of EndocrinologyThe First Affiliated Hospital of Xinxiang Medical UniversityWeihuiChina
| | - Xu Wang
- Ward 1, The Department of EndocrinologyThe First Affiliated Hospital of Xinxiang Medical UniversityWeihuiChina
| | - Guanying Zhang
- Ward 2, The Department of UrologyThe First Affiliated Hospital of Xinxiang Medical UniversityWeihuiChina
| | - Liwei Bai
- Ward 1, The Department of EndocrinologyThe First Affiliated Hospital of Xinxiang Medical UniversityWeihuiChina
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Younes S. The role of micronutrients on the treatment of diabetes. HUMAN NUTRITION & METABOLISM 2024; 35:200238. [DOI: 10.1016/j.hnm.2023.200238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/05/2024]
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Elsheikh E, Alabdullah AI, Al-Harbi SS, Alagha AO, AlAhmed DH, Alalmaee MMA. The Relationship between Vitamin D Levels and Blood Glucose and Cholesterol Levels. Clin Pract 2024; 14:426-435. [PMID: 38525711 PMCID: PMC10961748 DOI: 10.3390/clinpract14020032] [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: 01/20/2024] [Revised: 02/23/2024] [Accepted: 02/26/2024] [Indexed: 03/26/2024] Open
Abstract
BACKGROUND Vitamin D deficiency has reached epidemic proportions globally. Observational data link low vitamin D status to diabetes, dyslipidemia, and metabolic syndrome, but interventional trials on the effects of supplementation are limited. OBJECTIVE We investigated associations between serum 25-hydroxyvitamin D (25(OH)D) levels and metabolic markers in Saudi adults. METHODS This retrospective cross-sectional study analyzed the clinical records of 476 patients from Saudi Arabia, aged 15-78 years. According to 25(OH)D levels, participants were stratified as vitamin D-sufficient (≥30 ng/mL), -insufficient (21-29 ng/mL), or -deficient (≤20 ng/mL). The outcomes were diabetic status (fasting glucose, HbA1c) and lipid panel results. RESULTS Higher diabetes prevalence was significantly associated with lower 25(OH)D levels (10.1% in the sufficient group, 11.6% in the insufficient group, and 18.3% in the deficient group). Similarly, worse lipid profiles were associated with more severe hypovitaminosis D, including a total cholesterol level of ≥240 mg/dL (5.3% in participants with normal vitamin D levels vs. 18.9% in those with deficient levels) and LDL ≥ 160 mg/dL (6.9% in participants with normal vitamin D levels vs. 13.2% in those with deficient levels). Vitamin D deficiency disproportionately affected women and adults > 45 years old. CONCLUSIONS Vitamin D deficiency is endemic in Saudi Arabia and strongly linked to worsened metabolic markers. Optimizing vitamin D status through screening and correcting the deficiency may provide a cost-effective approach to confronting the regional diabetes epidemic and reducing cardiovascular disease risk.
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Affiliation(s)
- Eman Elsheikh
- Internal Medicine Department, College of Medicine, King Faisal University, Alahsa 31982, Saudi Arabia
- Cardiovascular Department, College of Medicine, Tanta University Hospital, Tanta 31527, Egypt
| | | | - Sarah Saleh Al-Harbi
- Pharm.D., College of Pharmacy, Umm Al-Qura University, Makkah 21955, Saudi Arabia; (S.S.A.-H.); (A.O.A.)
| | - Amal Omar Alagha
- Pharm.D., College of Pharmacy, Umm Al-Qura University, Makkah 21955, Saudi Arabia; (S.S.A.-H.); (A.O.A.)
| | - Dhiyaa Hassan AlAhmed
- College of Medicine, King Faisal University, Alhasa 31982, Saudi Arabia; (A.I.A.); (D.H.A.); (M.M.A.A.)
| | - Mazen Moraya Ali Alalmaee
- College of Medicine, King Faisal University, Alhasa 31982, Saudi Arabia; (A.I.A.); (D.H.A.); (M.M.A.A.)
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Johri N, Vengat M, Kumar D, Nagar P, John D, Dutta S, Mittal P. A comprehensive review on the risks assessment and treatment options for Sarcopenia in people with diabetes. J Diabetes Metab Disord 2023; 22:995-1010. [PMID: 37975099 PMCID: PMC10638272 DOI: 10.1007/s40200-023-01262-w] [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: 03/24/2023] [Accepted: 07/03/2023] [Indexed: 11/19/2023]
Abstract
Objectives This comprehensive review aims to examine the reciprocal interplay between Type 2 diabetes mellitus (T2DM) and sarcopenia, identify prevailing research gaps, and discuss therapeutic approaches and measures to enhance healthcare practices within hospital settings. Methods A thorough literature review was conducted to gather relevant studies and articles on the relationship between T2DM and sarcopenia. Various databases were searched, including Google Scholar, PubMed, Scopus, and Science Direct databases. The search terms included T2DM, sarcopenia, inflammation, insulin resistance, advanced glycation end products, oxidative stress, muscle dimensions, muscle strength, muscle performance, aging, nutrition, hormone levels, and physical activity. The collected articles were critically analysed to extract key findings and identify gaps in current research. Results The prevalence and incidence of metabolic and musculoskeletal disorders, notably T2DM and sarcopenia, have surged in recent years. T2DM is marked by inflammation, insulin resistance, accumulation of advanced glycation end products, and oxidative stress, while sarcopenia involves a progressive decline in skeletal muscle mass and function. The review underscores the age-related correlation between sarcopenia and adverse outcomes like fractures, falls, and mortality. Research gaps regarding optimal nutritional interventions for individuals with T2DM and sarcopenia are identified, emphasizing the necessity for further investigation in this area. Conclusions The reciprocal interplay between T2DM and sarcopenia holds significant importance. Further research is warranted to address knowledge gaps, particularly in utilizing precise measurement tools during clinical trials. Lifestyle modifications appear beneficial for individuals with T2DM and sarcopenia. Additionally, practical nutritional interventions require investigation to optimize healthcare practices in hospital settings. Supplementary Information The online version contains supplementary material available at 10.1007/s40200-023-01262-w.
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Affiliation(s)
- Nishant Johri
- Department of Pharmacy Practice, Teerthanker Mahaveer College of Pharmacy, Moradabad, Uttar Pradesh India
| | | | - Deepanshu Kumar
- Department of Pharmacy Practice, Teerthanker Mahaveer College of Pharmacy, Moradabad, Uttar Pradesh India
| | - Priya Nagar
- Department of Pharmacy Practice, Teerthanker Mahaveer College of Pharmacy, Moradabad, Uttar Pradesh India
| | - Davis John
- Department of Pharmacy Practice, Teerthanker Mahaveer College of Pharmacy, Moradabad, Uttar Pradesh India
| | - Shubham Dutta
- Department of Pharmacy Practice, Teerthanker Mahaveer College of Pharmacy, Moradabad, Uttar Pradesh India
| | - Piyush Mittal
- Department of Pharmacy Practice, Teerthanker Mahaveer College of Pharmacy, Moradabad, Uttar Pradesh India
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Sharma JK, Khan S, Wilson T, Pilkey N, Kapuria S, Roy A, Adams MA, Holden RM. Are There Any Pleiotropic Benefits of Vitamin D in Patients With Diabetic Kidney Disease? A Systematic Review of Randomized Controlled Trials. Can J Kidney Health Dis 2023; 10:20543581231212039. [PMID: 38033482 PMCID: PMC10683388 DOI: 10.1177/20543581231212039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 10/03/2023] [Indexed: 12/02/2023] Open
Abstract
Background Type 2 diabetes (T2D) and kidney disease are risk factors for vitamin D deficiency. Native forms of vitamin D have a lower risk of hypercalcemia than calcitriol, the active hormone. The enzyme responsible for activating native vitamin D is now known to be expressed throughout the body; therefore, native vitamin D may have clinically relevant effects in many body systems. Objective The objective of this systematic review was to examine the effect of native vitamin D supplementation on clinical outcomes and surrogate laboratory measures in patients with T2D and diabetic kidney disease (DKD). Design Systematic review. Setting Randomized controlled trials (RCTs) conducted in any country. Patients Adults with T2D and DKD receiving supplementation with any form of native vitamin D (eg, ergocalciferol, cholecalciferol, calcifediol). Measurements Clinical outcomes and surrogate clinical and laboratory measures reported in each of the trials were included in this review. Methods The following databases were searched from inception to January 31, 2023: Embase, MEDLINE, Cochrane CENTRAL, Web of Science, ProQuest Dissertations and Theses, and medRxiv. Only RCTs examining supplementation with a native vitamin D form with a control or placebo comparison group were included. We excluded studies reporting only vitamin D status or mineral metabolism parameters, without any other outcomes of clinical relevance or surrogate laboratory measures. Study quality was evaluated using the Cochrane risk-of-bias tool (RoB2). Results were synthesized in summary tables for each type of outcome with the P values from the original studies displayed. Results Nine publications were included, corresponding to 5 separate RCTs (377 participants total). Mean age ranged from 40 to 63. All trials administered vitamin D3. Intervention groups experienced improvements in vitamin D status and a reduction in proteinuria in 4 of the 5 included RCTs. There was a decrease in low-density lipoprotein and total cholesterol in the 2 trials in which they were measured. Improvements in bone mass, flow-mediated dilation, and inflammation were also reported, but each was only measured in 1 RCT. Effects on glucose metabolism, high-density lipoprotein, triglycerides, blood pressure, oxidative stress, and kidney function were mixed. No serious adverse effects were reported. Limitations Limitations include the small number of RCTs and lack of information on the use of drugs that affect measured outcomes (eg, proteinuria-lowering renin-angiotensin-aldosterone system inhibitors and lipid-lowering medication) in most studies. Our study is also limited by the absence of a prestudy protocol and registration. Conclusions Native vitamin D is a safe treatment that improves vitamin D status in patients with DKD. Vitamin D may modify proteinuria and lipid metabolism in DKD, but further well-designed trials that include well-established treatments are necessary. Overall, there is limited evidence for beneficial pleiotropic effects of vitamin D in patients with DKD.
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Affiliation(s)
- Jaya K. Sharma
- Department of Biomedical and Molecular Sciences, Queen’s University, Kingston, ON, Canada
| | - Sono Khan
- Department of Biomedical and Molecular Sciences, Queen’s University, Kingston, ON, Canada
| | - Tristin Wilson
- Department of Biomedical and Molecular Sciences, Queen’s University, Kingston, ON, Canada
| | - Nathan Pilkey
- Department of Biomedical and Molecular Sciences, Queen’s University, Kingston, ON, Canada
| | - Sanjana Kapuria
- Department of Biomedical and Molecular Sciences, Queen’s University, Kingston, ON, Canada
| | - Angélique Roy
- Bracken Health Sciences Library, Queen’s University, Kingston, ON, Canada
| | - Michael A. Adams
- Department of Biomedical and Molecular Sciences, Queen’s University, Kingston, ON, Canada
| | - Rachel M. Holden
- Department of Biomedical and Molecular Sciences, Queen’s University, Kingston, ON, Canada
- Department of Medicine, Queen’s University, Kingston, ON, Canada
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Argano C, Mirarchi L, Amodeo S, Orlando V, Torres A, Corrao S. The Role of Vitamin D and Its Molecular Bases in Insulin Resistance, Diabetes, Metabolic Syndrome, and Cardiovascular Disease: State of the Art. Int J Mol Sci 2023; 24:15485. [PMID: 37895163 PMCID: PMC10607188 DOI: 10.3390/ijms242015485] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 10/11/2023] [Accepted: 10/18/2023] [Indexed: 10/29/2023] Open
Abstract
In the last decade, an increasing awareness was directed to the role of Vitamin D in non-skeletal and preventive roles for chronic diseases. Vitamin D is an essential hormone in regulating calcium/phosphorous balance and in the pathogenesis of inflammation, insulin resistance, and obesity. The main forms of vitamin D, Cholecalciferol (Vitamin D3) and Ergocalciferol (Vitamin D2) are converted into the active form (1,25-dihydroxyvitamin D) thanks to two hydroxylations in the liver, kidney, pancreas, and immune cells. Some anti-inflammatory cytokines are produced at higher levels by vitamin D, while some pro-inflammatory cytokines are released at lower levels. Toll-Like Receptor (TLR) expression is increased, and a pro-inflammatory state is also linked to low levels of vitamin D. Regardless of how it affects inflammation, various pathways suggest that vitamin D directly improves insulin sensitivity and secretion. The level of vitamin D in the body may change the ratio of pro- to anti-inflammatory cytokines, which would impact insulin action, lipid metabolism, and the development and function of adipose tissue. Many studies have demonstrated an inverse relationship between vitamin D concentrations and pro-inflammatory markers, insulin resistance, glucose intolerance, metabolic syndrome, obesity, and cardiovascular disease. It is interesting to note that several long-term studies also revealed an inverse correlation between vitamin D levels and the occurrence of diabetes mellitus. Vitamin D supplementation in people has controversial effects. While some studies demonstrated improvements in insulin sensitivity, glucose, and lipid metabolism, others revealed no significant effect on glycemic homeostasis and inflammation. This review aims to provide insight into the molecular basis of the relationship between vitamin D, insulin resistance, metabolic syndrome, type 1 and 2 diabetes, gestational diabetes, and cardiovascular diseases.
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Affiliation(s)
- Christiano Argano
- Department of Internal Medicine, National Relevance and High Specialization Hospital Trust ARNAS Civico Di Cristina Benfratelli, 90127 Palermo, Italy; (L.M.); (S.A.); (V.O.); (A.T.); (S.C.)
| | - Luigi Mirarchi
- Department of Internal Medicine, National Relevance and High Specialization Hospital Trust ARNAS Civico Di Cristina Benfratelli, 90127 Palermo, Italy; (L.M.); (S.A.); (V.O.); (A.T.); (S.C.)
| | - Simona Amodeo
- Department of Internal Medicine, National Relevance and High Specialization Hospital Trust ARNAS Civico Di Cristina Benfratelli, 90127 Palermo, Italy; (L.M.); (S.A.); (V.O.); (A.T.); (S.C.)
| | - Valentina Orlando
- Department of Internal Medicine, National Relevance and High Specialization Hospital Trust ARNAS Civico Di Cristina Benfratelli, 90127 Palermo, Italy; (L.M.); (S.A.); (V.O.); (A.T.); (S.C.)
| | - Alessandra Torres
- Department of Internal Medicine, National Relevance and High Specialization Hospital Trust ARNAS Civico Di Cristina Benfratelli, 90127 Palermo, Italy; (L.M.); (S.A.); (V.O.); (A.T.); (S.C.)
| | - Salvatore Corrao
- Department of Internal Medicine, National Relevance and High Specialization Hospital Trust ARNAS Civico Di Cristina Benfratelli, 90127 Palermo, Italy; (L.M.); (S.A.); (V.O.); (A.T.); (S.C.)
- Department of Health Promotion Sciences, Maternal and Infant Care, Internal Medicine and Medical Specialties, [PROMISE], University of Palermo, 90127 Palermo, Italy
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13
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Li X, Kou S, Chen G, Zhao B, Xue J, Ding R, Zhao X, Ye M, Yang Y, Yue R, Li F. The relationship between vitamin D deficiency and diabetic foot ulcer: A meta-analysis. Int Wound J 2023; 20:3015-3022. [PMID: 37194326 PMCID: PMC10502267 DOI: 10.1111/iwj.14177] [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: 03/16/2023] [Revised: 03/21/2023] [Accepted: 03/22/2023] [Indexed: 05/18/2023] Open
Abstract
A meta-analysis investigation to measure the relationship between vitamin D deficiency (VDD) and diabetic foot ulcer (DFU). A comprehensive literature inspection till February 2023 was applied and 1765 interrelated investigations were reviewed. The 15 chosen investigations enclosed 2648 individuals with diabetes mellitus in the chosen investigations' starting point, 1413 of them were with DFUs, and 1235 were without DFUs. Odds ratio (OR) in addition to 95% confidence intervals (CIs) were used to compute the value of the relationship between VDD and DFU by the dichotomous and continuous approaches and a fixed or random model. Individuals with DFUs had significantly lower vitamin D levels (VDL) (MD, -7.14; 95% CI, -8.83 to -5.44, P < 0.001) compared to those without DFU individuals. Individuals with DFUs had a significantly higher number of VDD individuals (OR, 2.27; 95% CI, 1.63-3.16, P < 0.001) compared to those without DFU individuals. Individuals with DFU had significantly lower VDL and a significantly higher number of VDD individuals compared to those without DFU individuals. However, caused of the small sample sizes of several chosen investigations for this meta-analysis, care must be exercised when dealing with its values.
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Affiliation(s)
- Xin Li
- Department of EndocrinologyHospital of Chengdu University of Traditional Chinese MedicineChengduChina
| | - Shaojie Kou
- Department of Liver DiseaseShaanxi Provincial Hospital of Traditional Chinese MedicineXi'anChina
| | - Guo Chen
- Department of Infectious DiseasesHospital of Chengdu University of Traditional Chinese MedicineChengduChina
| | - Bingjie Zhao
- Department of HaematologyHospital of Chengdu University of Traditional Chinese MedicineChengduChina
| | - Jingdong Xue
- Department of Liver DiseaseShaanxi Provincial Hospital of Traditional Chinese MedicineXi'anChina
| | - Rui Ding
- Department of EndocrinologyHospital of Chengdu University of Traditional Chinese MedicineChengduChina
| | - Xiaoyan Zhao
- Department of EndocrinologyHospital of Chengdu University of Traditional Chinese MedicineChengduChina
| | - Miaoqing Ye
- Department of Liver DiseaseShaanxi Provincial Hospital of Traditional Chinese MedicineXi'anChina
| | - Yueqing Yang
- Department of Liver DiseaseShaanxi Provincial Hospital of Traditional Chinese MedicineXi'anChina
| | - Rensong Yue
- Department of EndocrinologyHospital of Chengdu University of Traditional Chinese MedicineChengduChina
| | - Fenping Li
- Department of Liver DiseaseShaanxi Provincial Hospital of Traditional Chinese MedicineXi'anChina
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14
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Abi-Ayad M, Nedjar I, Chabni N. Association between 25-hydroxy vitamin D and lung function (FEV1, FVC, FEV1/FVC) in children and adults with asthma: A systematic review. Lung India 2023; 40:449-456. [PMID: 37787360 PMCID: PMC10553772 DOI: 10.4103/lungindia.lungindia_213_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 06/22/2023] [Accepted: 07/09/2023] [Indexed: 10/04/2023] Open
Abstract
Asthma is a chronic respiratory disease that poses significant individual, social, financial and healthcare burdens. Physicians and researchers have recommended 25-hydroxy vitamin D supplementation, in combination with prescribed medication, as a potential means of reducing asthma severity. This systematic review focuses on the association between 25-hydroxy vitamin D levels and lung function in both children and adults with asthma. We identified published work by searching MEDLINE via PubMed, using regular search terms related to 25-hydroxy vitamin D and asthma. Fourteen studies were screened out of 643 eligible citations from MEDLINE research that involved 65 children and 951 adults. A strong positive association was observed in four studies, whereas five showed a moderate association, and two had no correlation. The majority of studies found a negative correlation between 25-hydroxy vitamin D deficiency and mild, uncontrolled and partly controlled asthma. 25-hydroxy vitamin D 25 OH values were below 20 ng/ml in the majority of studies, and those with uncontrolled severe asthma showed the lowest values.
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Affiliation(s)
| | - Imane Nedjar
- First Cycle Department, Higher School of Applied Sciences of Tlemcen, Algeria
- Biomedical Engineering Laboratory, University of Tlemcen, Algeria
| | - Nafissa Chabni
- Epidemiology Department, University-Hospital of Tlemcen, Algeria
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15
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Halschou-Jensen PM, Sauer J, Bouchelouche P, Fabrin J, Brorson S, Ohrt-Nissen S. Improved Healing of Diabetic Foot Ulcers After High-dose Vitamin D: A Randomized Double-blinded Clinical Trial. INT J LOW EXTR WOUND 2023; 22:466-474. [PMID: 34213957 DOI: 10.1177/15347346211020268] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background. Chronic foot ulcers are a major cause of morbidity in people with diabetes with a lifetime risk of 25%. Treatment is challenging and the recurrence rates of foot ulcers are >50% after 3 years. Vitamin D deficiency is more common in people with diabetes with chronic foot ulcers, compared to both people without diabetes as well as people with diabetes but without foot ulcers. Purpose/aim of study. To assess the efficacy of high-dose compared to low-dose Cholecalciferol vitamin D3 on healing of chronic diabetic foot ulcers. Materials and methods. We included people with diabetes with one or more foot ulcers lasting for more than 6 weeks. Patients were randomly allocated to either a daily oral intake of high-dose (170 μg) or low-dose (20 μg) vitamin D3 (Cholecalciferol). We saw patients in the outpatient clinic after 4, 12, 24, 36, and 48 weeks. At each visit, we measured the ulcer with a specialized camera, and associated software and the area (cm2) was calculated. Patients and assessors were blinded to treatment allocation. We followed all patients for 48 weeks or until wound healing or surgical treatment. Findings/results. We included 48 patients in the analysis (24 in each group), with a total of 64 ulcers. Among them 41 ulcers were followed until healing or 48-week follow-up and 20 ulcers were surgically treated during the study period. Three patients were lost for follow-up. The intention-to-treat analysis showed a significantly higher rate of ulcer healing in the high-dose group with 21 of 30 (70%) healed ulcers compared to 12 of 34 (35%) in the low-dose group (P = .012). Median ulcer reduction at final follow-up was 100% (interquartile range [IQR]: 72-100) in the high-dose group and 57% (IQR: -28 to 100) in the low-dose group. Furthermore, we found a significant effect of high-dose vitamin D on ulcer reduction in the repeated measures analysis of variance. Conclusions. We found high-dose vitamin D3 to be efficient, compared to low-dose vitamin D3, in promoting healing in chronic diabetic foot ulcers.
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Affiliation(s)
| | - Jannie Sauer
- Zealand University Hospital, Køge, Sjælland, Denmark
| | | | - Jesper Fabrin
- Zealand University Hospital, Køge, Sjælland, Denmark
| | - Stig Brorson
- Zealand University Hospital, Køge, Sjælland, Denmark
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16
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Hsia DS, Nelson J, Vickery EM, Rasouli N, LeBlanc ES, Kim S, Brodsky I, Pratley R, Dawson-Hughes B, Pittas AG. Effect of vitamin D on regression to normal glucose regulation and individual glycemic measures: A secondary analysis among participants adherent to the trial protocol in the randomized clinical trial vitamin D and type 2 diabetes (D2d) study. Diabetes Res Clin Pract 2023; 202:110792. [PMID: 37343726 PMCID: PMC10491428 DOI: 10.1016/j.diabres.2023.110792] [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: 12/22/2022] [Revised: 05/31/2023] [Accepted: 06/14/2023] [Indexed: 06/23/2023]
Abstract
AIMS To examine the effect of vitamin D on regression to normal glucose regulation (NGR) and individual glycemic measures in the D2d study. METHODS In per-protocol analyses, we examined time to new-onset diabetes; time to new-onset NGR defined as first occurrence of: 2-or-3 glycemic criteria in the normal range (NGR-1) or fasting plasma glucose (FPG) and 2-hour post-load-glucose (2hPG) in the normal range (NGR-2); proportion meeting NGR at the last study visit; and change in FPG, 2hPG, and HbA1c. RESULTS Among 2423 participants, hazard ratio [HR] for diabetes was 0.84 [95%CI, 0.71, 0.99]). HR (95%CI) was 1.16 (0.99, 1.36) for new-onset NGR-1 and 1.06 (0.87, 1.30) for NGR-2. At the last visit, NGR-1 occurred in 12.4% vs. 9.5% participants in the vitamin D vs. placebo group (rate ratio for vitamin D 1.31 [1.02, 1.70]); whereas, NGR-2 occurred in 8.7% vs. 6.0% (rate ratio for vitamin D 1.45 [1.05, 2.00]). During follow-up, FPG, HbA1c, and 2hPG increased in both groups. Mean difference in FPG favored vitamin D (-0.80 mg/dL; 95%CI, -1.26, -0.33). CONCLUSIONS In secondary analyses among participants adherent to the trial protocol, vitamin D lowered risk of developing diabetes and increased likelihood of NGR at the end of the study.
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Affiliation(s)
- Daniel S Hsia
- Pennington Biomedical Research Center, Baton Rouge, LA, USA.
| | - Jason Nelson
- Tufts CTSI, BERD Center, Tufts Medical Center, Boston, MA, USA
| | - Ellen M Vickery
- Division of Endocrinology, Diabetes and Metabolism, Tufts Medical Center, Boston, MA, USA
| | - Neda Rasouli
- University of Colorado, School of Medicine and VA Eastern Colorado Health Care System, Aurora, CO, USA
| | - Erin S LeBlanc
- Center for Health Research, Kaiser Permanente NW, Portland, OR, USA
| | - Sun Kim
- Division of Endocrinology, Gerontology and Metabolism, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Irwin Brodsky
- Endocrinology and Diabetes Center, Maine Medical Center and Maine Medical Center Research Institute, Scarborough, ME, USA
| | - Richard Pratley
- AdventHealth Translational Research Institute for Metabolism and Diabetes, Orlando, FL, USA
| | - Bess Dawson-Hughes
- Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA, USA
| | - Anastassios G Pittas
- Division of Endocrinology, Diabetes and Metabolism, Tufts Medical Center, Boston, MA, USA
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17
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Lei X, Zhou Q, Wang Y, Fu S, Li Z, Chen Q. Serum and supplemental vitamin D levels and insulin resistance in T2DM populations: a meta-analysis and systematic review. Sci Rep 2023; 13:12343. [PMID: 37524765 PMCID: PMC10390579 DOI: 10.1038/s41598-023-39469-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 07/26/2023] [Indexed: 08/02/2023] Open
Abstract
Observational studies have shown a negative correlation between Vitamin D level and the likelihood of developing insulin resistance (IR) and/or diabetes over time, yet evidence remains inconsistent. In this meta-analysis and systematic review, we strive to define the potential association between serum or supplemental Vitamin D Levels and insulin resistance respectively, as well as the contribution of Vitamin D to type 2 diabetes, and to summarize the biologic plausibility of Vitamin D. Four databases (PubMed, Embase, Cochrane Library, and Web of Science) were searched for this Systematic Literature Review (SLR) to find appropriate observational studies and clinical trials published in English through to July 2022. EndNote (version X9) is used to manage the literature search results. We calculated Standard Mean Differences (SMDs) and Risk Ratios (RRs) with their 95% Confidence Intervals (CIs), separately, for continuous and dichotomous outcomes. The correlation coefficients were normalized to z values through Fisher's z-transformation to calculate the relevant statistics. Meta-analyses were carried out for all comparisons, based on a random-effects pooling model. Data analysis was performed using RevMan (version 5.3) and STATA (version 15.1). All statistical tests were two-sided, with P < 0.05 were regarded as significant. In our current meta-analysis, there are 18 RCTs and 20 observational studies including 1243 and 11,063 participants respectively. In the overall analysis, the diabetic with Vitamin D supplement treatment group showed significantly improve serum insulin (SMD = - 0.265, 95% CI - 0.394 to - 0.136, P < 0.05), glucose (SMD = - 0.17, 95% CI - 0.301to - 0.039, P < 0.05) and HOMA-IR (SMD = - 0.441, 95% CI - 0.582 to - 0.3, P < 0.05) compared with the routine treatment group. Correlation analysis results showed that all three outcomes were significantly correlated in a negative manner with raised Vitamin D (insulin: r = - 0.08 95% = - 0.12 to - 0.04; glucose: r = - 0.06 95% = - 0.11 to - 0.01; HOMA-IR: r = - 0.08 95% = - 0.09 to - 0.06). Results of overall analysis proved that vitamin D has shown significant effect on regulates insulin resistance, and there is a significant inverse association between serum Vitamin D level and IR. Vitamin D supplementation is expected to be integrated into conventional medical approaches to prevent type 2 diabetes and to mitigate the burden of diabetes for individuals and society.PROSPERO registration number: CRD42022348295.
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Affiliation(s)
- Xingxing Lei
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan, China
| | - Qian Zhou
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan, China
| | - Yanmei Wang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan, China
| | - Shunlian Fu
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan, China
| | - Zinan Li
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan, China
| | - Qiu Chen
- Hospital of Chengdu University of Traditional Chinese Medicine, Sichuan Province, No. 39, Shi-er-Qiao Road, Chengdu, 610072, People's Republic of China.
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18
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Mirghani HO. Vitamin D deficiency among outpatients and hospitalized patients with diabetic foot ulcers: A systematic review and meta-analysis. World J Meta-Anal 2023; 11:218-227. [DOI: 10.13105/wjma.v11.i5.218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 03/06/2023] [Accepted: 05/06/2023] [Indexed: 06/16/2023] Open
Abstract
BACKGROUND The definition of diabetic foot syndrome (DFS) varies depending on the location and resources. Few classifications are available according to the indication. DF ulcers and vitamin D deficiency are common diseases among patients with diabetes. Previous literature has shown an association between DF ulcer (DFU) and vitamin D deficiency. However, the available meta-0analysis was limited by substantial bias.
AIM To investigate the association between DFUs and vitamin D levels.
METHODS We searched PubMed, MEDLINE, and Cochrane Library, EBSCO, and Google Scholar for studies comparing vitamin D levels and DF. The keywords DFU, DFS, diabetic septic foot, vitamin D level, 25-hydroxy vitamin D, vitamin D status, and vitamin D deficiency were used. The search engine was set for articles published during the period from inception to October 2022. A predetermined table was used to collect the study information.
RESULTS Vitamin D level was lower among patients with DFU compared to their counterparts [odds ratio (OR): -5.77; 95% confidence interval (CI): -7.87 to -3.66; χ2 was 84.62, mean difference, 9; I2 for heterogeneity, 89%; P < 0.001 and P for overall effect < 0.001]. The results remained robust for hospitalized patients (OR: -6.32 95%CI: -11.66 to -0.97; χ2 was 19.39; mean difference, 2; I2 for heterogeneity, 90%; P = 0.02).
CONCLUSION Vitamin D was lower among outpatients and hospitalized patients with DFUs. Further larger randomized controlled trials are needed.
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Affiliation(s)
- Hyder Osman Mirghani
- Department of Internal Medicine, Faculty of Medicine, University of Tabuk, Saudi Arabia, Tabuk 3378, Saudi Arabia
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19
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Crafa A, Cannarella R, Barbagallo F, Leanza C, Palazzolo R, Flores HA, La Vignera S, Condorelli RA, Calogero AE. Mechanisms Suggesting a Relationship between Vitamin D and Erectile Dysfunction: An Overview. Biomolecules 2023; 13:930. [PMID: 37371510 DOI: 10.3390/biom13060930] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/28/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023] Open
Abstract
Vitamin D deficiency (VDD) and erectile dysfunction (ED) heavily burden the male population. The higher prevalence of both conditions in the elderly suggests a possible relationship between the two conditions. In addition, in vitro, animal, and human studies have revealed several mechanisms that may relate VDD to ED. The main mechanism by which vitamin D might exert its action on sexual function appears to be through the regulation of endothelial function. Indeed, VDD correlates with several markers of endothelial function. The action of vitamin D on the endothelium would be exercised both indirectly through its intervention in inflammatory processes and through the production of oxygen free radicals, and directly through the regulation of vascular stiffness, the production of nitric oxide, and the regulation of vessel permeability. Furthermore, the ubiquitous distribution of the vitamin D receptor in the human body means that this hormone can also exert a beneficial effect on erectile function by interfering with those comorbidities significantly associated with ED, such as hypertension, diabetes mellitus, hypercholesterolemia, chronic kidney disease, and hypogonadism. In this review, we thoroughly and carefully presented the evidence and mechanisms that would appear to relate vitamin D levels to erectile function. Furthermore, we have summarized the meta-analytic evidence for and against this association to provide a true representation of this topic. Data published to date suggest that low levels of vitamin D could contribute to worsening erectile function through several mechanisms. Therefore, vitamin D levels should be measured in patients with ED and maintained at adequate levels by specific supplementation in case of deficiency. However, the low quality and heterogeneity of clinical trials evaluating the effects of vitamin D administration on erectile function and ED-associated comorbidities do not allow for a univocal conclusion, and indicate the need for further studies to analyze these aspects.
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Affiliation(s)
- Andrea Crafa
- Department of Clinical and Experimental Medicine, University of Catania, 95121 Catania, Italy
| | - Rossella Cannarella
- Department of Clinical and Experimental Medicine, University of Catania, 95121 Catania, Italy
- Glickman Urological & Kidney Institute, Cleveland Clinic Foundation, Cleveland, OH 44195, USA
| | - Federica Barbagallo
- Department of Clinical and Experimental Medicine, University of Catania, 95121 Catania, Italy
| | - Claudia Leanza
- Department of Clinical and Experimental Medicine, University of Catania, 95121 Catania, Italy
| | - Roberto Palazzolo
- Department of Clinical and Experimental Medicine, University of Catania, 95121 Catania, Italy
| | - Hunter Ausley Flores
- Scott Department of Urology, Baylor College of Medicine in Houston, Houston, TX 77030, USA
| | - Sandro La Vignera
- Department of Clinical and Experimental Medicine, University of Catania, 95121 Catania, Italy
| | - Rosita A Condorelli
- Department of Clinical and Experimental Medicine, University of Catania, 95121 Catania, Italy
| | - Aldo E Calogero
- Department of Clinical and Experimental Medicine, University of Catania, 95121 Catania, Italy
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Musazadeh V, Kavyani Z, Mirhosseini N, Dehghan P, Vajdi M. Effect of vitamin D supplementation on type 2 diabetes biomarkers: an umbrella of interventional meta-analyses. Diabetol Metab Syndr 2023; 15:76. [PMID: 37072813 PMCID: PMC10114333 DOI: 10.1186/s13098-023-01010-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Accepted: 02/26/2023] [Indexed: 04/19/2023] Open
Abstract
BACKGROUND Vitamin D supplementation exerts several supporting effects on improving glycemic status, however, results are inconclusive. Thus, in the present study, we aimed to conduct an umbrella of meta-analysis regarding the impact of vitamin D on type 2 diabetes (T2DM) biomarkers. METHODS The Scopus, PubMed, Web of Science, Embase, and Google Scholar online databases were searched up to March 2022. All meta-analyses evaluating the impact of vitamin D supplementation on T2DM biomarkers were considered eligible. Overall, 37 meta-analyses were included in this umbrella meta-analysis. RESULTS Our findings indicated that vitamin D supplementation significantly decreased fasting blood sugar (FBS) (WMD = - 3.08; 95% CI: - 3.97, - 2.19, p < 0.001, and SMD = - 0.26; 95% CI: - 0.38, - 0.14, p < 0.001), hemoglobin A1c (HbA1c) (WMD = - 0.05; 95% CI: - 0.10, - 0.01, p = 0.016, and SMD = - 0.16; 95% CI: - 0.27, - 0.05, p = 0.004), insulin concentrations (WMD = - 2.62; 95% CI: - 4.11, - 1.13; p < 0.001, and SMD = - 0.33; 95% CI: - 0.56, - 0.11, p = 0.004), and homeostatic model assessment for insulin resistance (HOMA-IR) (WMD = - 0.67; 95% CI: - 1.01, - 0.32, p < 0.001, and SMD = - 0.31; 95% CI: - 0.46, - 0.16, p < 0.001). CONCLUSION This umbrella meta-analysis proposed that vitamin D supplementation may improve T2DM biomarkers.
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Affiliation(s)
- Vali Musazadeh
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
- School of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Zeynab Kavyani
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
- School of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Parvin Dehghan
- Associate of Nutrition, School of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Mahdi Vajdi
- Student Research Committee, Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran.
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Aquino SLS, Cunha ATO, Sena-Evangelista KCM, Lima JG, Pedrosa LFC. Vitamin D 3 supplementation had no benefits in patients with metabolic syndrome and vitamin D deficiency: A pilot study. Clin Nutr ESPEN 2023; 54:300-303. [PMID: 36963877 DOI: 10.1016/j.clnesp.2023.02.002] [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: 09/26/2022] [Revised: 12/30/2022] [Accepted: 02/02/2023] [Indexed: 02/10/2023]
Abstract
BACKGROUND Vitamin D deficiency has been observed in individuals with metabolic syndrome (MetS). This study evaluated the effects of vitamin D supplementation in patients with MetS and vitamin D deficiency. METHODS Vitamin D3 supplementation was performed in patients with MetS and 25(OH)D levels ≤20 ng/mL arranged in two phases. The first phase corresponded to 50,000 IU/week for eight weeks, and the second phase was 7000 IU/week for twelve weeks. RESULTS The 20-week intervention resulted in an increment of 14.3 ng/mL of 25(OH)D. HbA1c showed a reduction of 0.69% (95% CI [-1.16, -0.21], p = 0.005); however, the triglycerides, HDL-cholesterol, fasting blood glucose, blood pressure, and waist circumference were not responsive to supplementation. CONCLUSION Vitamin D3 supplementation did not favor the MetS components.
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Affiliation(s)
- Séphora L S Aquino
- Postgraduate Program in Health Sciences, Federal University of Rio Grande do Norte, Brazil
| | - Aline T O Cunha
- Collaborative Researcher in Postgraduate Program in Nutrition, Federal University of Rio Grande do Norte, Brazil
| | | | - Josivan G Lima
- Department of Clinical Medicine, Endocrine Unit, Federal University of Rio Grande do Norte, Brazil
| | - Lucia F C Pedrosa
- Postgraduate Program in Health Sciences, Federal University of Rio Grande do Norte, Brazil; Department of Nutrition, Federal University of Rio Grande do Norte, Brazil.
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22
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Yari Z, Nikooyeh B, Neyestani TR. Circulating 25-hydroxyvitamin D is associated with metabolic phenotypes of obesity: National Food and Nutrition Surveillance. Nutr Res 2023; 110:14-22. [PMID: 36640580 DOI: 10.1016/j.nutres.2022.12.006] [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: 07/22/2022] [Revised: 12/15/2022] [Accepted: 12/18/2022] [Indexed: 12/24/2022]
Abstract
Different phenotypes of obesity are each related with different complications and comorbidities. We hypothesized that suboptimal vitamin D status is directly associated with an unhealthy metabolic status, especially if allied with obesity. This cross-sectional study was performed in the framework of the National Food and Nutrition Surveillance. Overall, 1098 men and women participated in this study. In addition to height and weight, serum concentrations of 25-hydroxyvitamin D (25(OH)D) and glycemic and lipidemic status were evaluated. Then participants were classified into 4 groups based on body mass index and lipidemic and glycemic profile status, as follows: hyperglycemic-dyslipidemic obese (HDO), hyperglycemic-dyslipidemic nonobese (HDNO), normoglycemic-normolipidemic obese (NNO), and normoglycemic-normolipidemic nonobese (NNNO). In this study, 31.6% of participants were classified as HDO, 7.5% as HDNO, 34.5% as NNO, and 26.4% as NNNO. The frequency of suboptimal vitamin D status was more prevalent in HDO (81.8%) than in other phenotypes (HDNO, 80%; NNO, 77.6%; NNNO, 73.8%; P = .015). In the multivariate model, suboptimal vitamin D status significantly increased the odds of being NNO (odds ratio [OR], 1.28; 95% CI, 0.84-1.95), HDNO (OR, 1.48; 95% CI, 0.77-2.83), and HDO (OR, 1.73; 95% CI, 1.11-2.7) compared with the NNNO group. Likewise, in multivariate model, per each unit (ng/mL) increment in 25(OH)D concentration, the odds of HDNO and HDO decreased significantly by 4% (OR, 0.96; 95% CI, 0.94-0.98) and 7% (OR, 0.93; 95% CI, 0.92-0.95), respectively. The results of the study showed a significant relationship between serum 25(OH)D concentrations and metabolic obesity phenotypes; these data confirm the association between suboptimal vitamin D status and metabolic complications, especially in obese individuals.
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Affiliation(s)
- Zahra Yari
- Department of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Bahareh Nikooyeh
- Department of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Tirang R Neyestani
- Department of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Farahmand MA, Daneshzad E, Fung TT, Zahidi F, Muhammadi M, Bellissimo N, Azadbakht L. What is the impact of vitamin D supplementation on glycemic control in people with type-2 diabetes: a systematic review and meta-analysis of randomized controlled trails. BMC Endocr Disord 2023; 23:15. [PMID: 36647067 PMCID: PMC9841647 DOI: 10.1186/s12902-022-01209-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 11/10/2022] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND There is conflicting evidence on the effect of vitamin D on glycemic control. Therefore, in the current meta-analyses, we aimed to assess the effect of vitamin D supplementation on the glycemic control of type 2 diabetes (T2D) patients. METHODS We conducted a comprehensive search in electronic databases including; PubMed/Medline, Web of Science, Scopus, Embase, Cochrane Central Register of Controlled Trials (CENTRAL), and NIH's Clinical Trials Registry, from the inception of each database up to January first, 2021. RESULTS A total of 46 randomized controlled trials (RCTs) consisting of 2164 intervention subjects and 2149 placebo controls were included in this meta-analysis. Pooled analyses for HbA1c showed a significant change between the intervention and placebo group, the weighted mean difference (WMD)(95% confidence interval(CI)) was -0.20%(-0.29, -0.11) with P < 0.001. Analyses for assessing changes in FPG found a significant reduction in the intervention group after vitamin D supplementation, the WMD (95%CI) was -5.02 mg/dl (-6.75,-3.28) with P < 0.001. The result of pooled analyses for HOMA-IR revealed a significant change between the intervention and control group, the WMD (95%CI) was -0.42(-0.76, -0.07) with P = 0.019. The subgroup analyses showed the most efficacy in a higher dose and short intervention period and in subjects with deficient vitamin D status. CONCLUSION Vitamin D supplementation might be beneficial for the reduction of FPG, HbA1c, and HOMA-IR in type 2 diabetes patients with deficient vitamin D status. This effect was especially prominent when vitamin D was given in large doses and for a short period of time albeit with substantial heterogeneity between studies and a probability of publication bias.
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Affiliation(s)
- Mohammad Ashraf Farahmand
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), PO BOX: 1416643931, Tehran, Iran
- Public Health Faculty, Kabul University of Medical Science (KUMS), Kabul, Afghanistan
| | - Elnaz Daneshzad
- Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Teresa T Fung
- Department of Nutrition, Harvard TH Chan School of Public Health, Boston, USA
- Department of Nutrition, Simmons University, Boston, MA, USA
| | - Fawzia Zahidi
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), PO BOX: 1416643931, Tehran, Iran
| | - Maryam Muhammadi
- Critical Nursing Care Department, Kabul University of Medical Science (KUMS), Kabul, Afghanistan
| | - Nick Bellissimo
- School of Nutrition, Toronto Metropolitan University, Toronto, ON, Canada
| | - Leila Azadbakht
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), PO BOX: 1416643931, Tehran, Iran.
- Diabetes Research Centre, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
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Wu Q, Wang J, Lin X, Han D, Hu H, Gao H. Determining the Efficacy and Safety of Acupuncture for the Preventive Treatment of Menstrual Migraine: A Protocol for a PRISMA-Compliant Systematic Review and Meta-Analysis. J Pain Res 2023; 16:101-109. [PMID: 36647433 PMCID: PMC9840396 DOI: 10.2147/jpr.s394446] [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: 10/24/2022] [Accepted: 12/17/2022] [Indexed: 01/11/2023] Open
Abstract
Background Menstrual migraine (MM), as a common type of headache related to women's menstrual cycle, currently available treatments do not produce sufficient effectiveness, making it remains difficult to manage. Although acupuncture may be an effective treatment for MM, there is a lack of convincing evidence to recommend acupuncture to patients with MM until more solid evidence is produced. Therefore, the purpose of our systematic review (SR) and meta-analysis protocol is to synthesize up-to-date evidence regarding the clinical efficacy and safety of acupuncture on MM. Methods To find qualifying RCTs, nine databases will be searched. RevMan 5.3 will be used to combine the retrieved data for meta-analyses. The Cochrane risk of bias instrument will be used to assess the methodological quality of each included trial. The strength and certainty of the evidence will be evaluated using the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) system. Additionally, we will undertake sensitivity analyses, publication bias, and subgroup analyses if available. Discussion Our SR and meta-analysis protocol will contribute to determining acupuncture's therapeutic effect and safety in the preventive treatment of MM. Based on the up-to-date evidence produced by the subsequent SR and meta-analysis, informed treatment decisions will be made by patients, physicians and policy makers.
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Affiliation(s)
- Qiqi Wu
- Department of Acupuncture, Moxibustion and Massage, Wenzhou Central Hospital, Wenzhou City, People’s Republic of China
| | - Jiawei Wang
- The Third School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou City, People’s Republic of China
| | - Xiaoqi Lin
- The Third School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou City, People’s Republic of China
| | - Dexiong Han
- Department of Acupuncture and Moxibustion, the Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou City, People’s Republic of China
| | - Hantong Hu
- Department of Acupuncture and Moxibustion, the Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou City, People’s Republic of China,Correspondence: Hantong Hu; Hong Gao, Department of Acupuncture and Moxibustion, the Third Affiliated Hospital of Zhejiang Chinese Medical University, No. 219 Moganshan Road, Xihu District, Hangzhou City, People’s Republic of China, Email ;
| | - Hong Gao
- Department of Acupuncture and Moxibustion, the Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou City, People’s Republic of China
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25
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Hu Z, Zhi X, Li J, Li B, Wang J, Zhu J, Zhang Z. Effects of long-term vitamin D supplementation on metabolic profile in middle-aged and elderly patients with type 2 diabetes. J Steroid Biochem Mol Biol 2023; 225:106198. [PMID: 36181990 DOI: 10.1016/j.jsbmb.2022.106198] [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: 06/28/2022] [Revised: 09/21/2022] [Accepted: 09/27/2022] [Indexed: 02/01/2023]
Abstract
To evaluate the effects of long-term vitamin D supplementation on metabolic profiles in middle-aged to elderly patients with type 2 diabetes (T2D), a randomized controlled trial was conducted among patients with T2D aged 50-70 years. A total of 270 patients underwent randomization with 135 being allocated to the vitamin D group and 135 to the control group, and participants in the vitamin D group received oral vitamin D3 (800 IU/day) for 30 months. Serum 25(OH)D and metabolic variables were measured at baseline, and after 6, 12, 18, and 30 months of intervention. After 30 months, the vitamin D group showed a greater increase in serum 25(OH)D than the control group (12.39 ± 6.99 vs 5.35 ± 5.29 ng/ml, P < 0.001). Meanwhile, changes in the levels of fasting insulin, HOMA-IR, non-high-density-lipoprotein cholesterol (non-HDL-C), high-sensitivity C-reactive protein (hs-CRP), and uric acid differed significantly between the two groups (all P < 0.05). Stratified analysis indicated that change in uric acid differed significantly between the two groups in subgroup with baseline 25(OH)D ≥ 20 ng/ml (P = 0.042) or subgroup with female patients (P = 0.034). And the change in fasting blood glucose (FBG) differed significantly between the vitamin D group (-0.30 ± 2.52 mmol/L) and the control group (0.49 ± 1.78 mmol/L, P = 0.049) among patients achieving 25(OH)D concentrations of 30 ng/ml at the end of this trial. A significant difference in the change of triglyceride was observed between the two groups among patients with obesity at baseline [0.05(-0.59, 0.23) vs 0.41(-0.01, 0.80) mmol/L, P = 0.023]. These findings suggested that long-term vitamin D supplementation significantly reduced fasting insulin, HOMA-IR, and serum concentrations of non-HDL-C, hs-CRP, and uric acid among middle-aged to elderly patients with T2D. And vitamin D status, gender, and baseline obesity may modify the effects of vitamin D supplementation.
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Affiliation(s)
- Zhiyong Hu
- School of Public Health and Management, Binzhou Medical University, 346 Guanhai Road, Yantai 264003, China; Department of Occupational and Environmental Health, School of Public Health, Medical College of Soochow University, 199 Renai Road, Suzhou 215123, China
| | - Xueyuan Zhi
- Department of Occupational and Environmental Health, School of Public Health, Medical College of Soochow University, 199 Renai Road, Suzhou 215123, China; Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Medical College of Soochow University, 199 Renai Road, Suzhou 215123, China
| | - Jiafu Li
- Department of Occupational and Environmental Health, School of Public Health, Medical College of Soochow University, 199 Renai Road, Suzhou 215123, China
| | - Bingyan Li
- Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Medical College of Soochow University, 199 Renai Road, Suzhou 215123, China; Department of Nutrition and Food Hygiene, School of Public Health, Medical College of Soochow University, 199 Renai Road, Suzhou 215123, China
| | - Jinxiu Wang
- School of Public Health and Management, Binzhou Medical University, 346 Guanhai Road, Yantai 264003, China
| | - Jianliang Zhu
- Lishui Center for Disease Control and Prevention, Lishui 323000, China
| | - Zengli Zhang
- Department of Occupational and Environmental Health, School of Public Health, Medical College of Soochow University, 199 Renai Road, Suzhou 215123, China; Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Medical College of Soochow University, 199 Renai Road, Suzhou 215123, China.
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26
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Lin J, Mo X, Yang Y, Tang C, Chen J. Association between vitamin D deficiency and diabetic foot ulcer wound in diabetic subjects: A meta-analysis. Int Wound J 2023; 20:55-62. [PMID: 35567425 PMCID: PMC9797924 DOI: 10.1111/iwj.13836] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 04/21/2022] [Accepted: 04/24/2022] [Indexed: 01/07/2023] Open
Abstract
A meta-analysis was performed to evaluate the association between vitamin D deficiency and diabetic foot ulcer wounds in diabetic subjects. A systematic literature search up to March 2022 incorporated 7586 subjects with diabetes mellitus at the beginning of the study; 1565 were using diabetic subjects with foot ulcer wounds, and 6021 were non-ulcerated diabetic subjects. Statistical tools like the dichotomous and contentious method were used within a random or fixed-influence model to establish the odds ratio (OR) and mean difference (MD) with 95% confidence intervals (CIs) to evaluate the influence of vitamin D deficiency in managing diabetic foot ulcer wound. Diabetic subjects with foot ulcer wounds had significantly lower vitamin D levels (MD, -6.48; 95% CI, -10.84 to -2.11, P < .004), higher prevalence of vitamin D deficiency (<50 nmoL/L) (OR, 1.82; 95% CI, 1.32-2.52, P < .001), and higher prevalence of severe vitamin D deficiency (OR, 2.53; 95% CI, 1.65-3.89, P < .001) compared with non-ulcerated diabetic subjects. Diabetic subjects with foot ulcer wounds had significantly lower vitamin D levels, higher prevalence of vitamin D deficiency, and higher prevalence of severe vitamin D deficiency compared with non-ulcerated diabetic subjects. Further studies are required to validate these findings.
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Affiliation(s)
- Juan Lin
- Nursing School of Shaoyang UniversityHunanChina
| | - Xinxin Mo
- Nursing School of Shaoyang UniversityHunanChina
| | - Yejun Yang
- Department of PediatricShaoyang Central HospitalHunanChina
| | - Chao Tang
- Nursing School of Shaoyang UniversityHunanChina
| | - Jia Chen
- Xiangya School of Nursing School of Central South UniversityHunanChina
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27
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Study on the relationship between vitamin D level and macrophage typing in patients with type 2 diabetes mellitus. Int J Diabetes Dev Ctries 2022. [DOI: 10.1007/s13410-022-01150-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Abstract
Objective
Population studies have shown that vitamin D (VitD) deficiency is associated with an increased incidence of type 2 diabetes mellitus (T2DM), VitD deficiency is a potential risk factor for T2DM, and the proportion of M1-type macrophages and M2-type macrophages in T2DM patients is imbalanced. Another study reported that VitD can affect the differentiation of macrophages into M1 and M2 types. However, there is no definitive result about the correlation between plasma VitD levels and macrophage typing in patients with T2DM. Whether VitD affects the progression of T2DM by regulating the polarization type of macrophages and the specific regulatory mechanism is not very clear. Therefore, we carried out the following research.
Methods
We first used flow cytometry to detect the proportions of M1 and M2 macrophages in peripheral blood of T2DM patients with different VitD levels. Furthermore, we used ELISA to detect the inflammatory factors affecting macrophage differentiation in patients’ plasma, including IL-6 secreted by M1-type macrophages and TGF-β secreted by M2-type macrophages. Mononuclear cells were separated from human peripheral blood with immunomagnetic beads, cultured in vitro, and treated with different concentrations of VitD, and the ratio of differentiation into M1 and M2 macrophages was detected by flow cytometry.
Results
With the increase of serum 25(OH)D levels in patients with T2DM, the proportion of M1 and M2 macrophages in peripheral blood decreased, that is, the polarized phenotype of macrophages was more inclined to M2 type, while plasma IL-6 gradually decreased, and TGF-β gradually increased. In addition, VitD can promote the differentiation of CD14-positive monocytes cultured in vitro into M2 macrophages.
Conclusions
When the level of VitD in T2DM patients is low, there are more M1-type macrophages in peripheral blood, and when the level of VitD is increased, M2-type macrophages are increased. Changes in related inflammatory factors were also consistent. In vitro culture of monocytes further confirmed that VitD can promote the differentiation of macrophages to M2 type in T2DM patients.
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Daniel JB, de Farias Costa PR, Pereira M, Oliveira AM. Vitamin D deficiency and cardiometabolic risk factors in adolescents: systematic review and meta-analysis. Rev Endocr Metab Disord 2022; 23:995-1010. [PMID: 35713809 DOI: 10.1007/s11154-022-09736-7] [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] [Accepted: 05/11/2022] [Indexed: 10/18/2022]
Abstract
Vitamin D deficiency is associated with an increase in the occurrence of cardiometabolic events, but the evidence of this relationship in adolescence is still limited. Thus, we analyzed the association between vitamin D deficiency and cardiometabolic risk factors in adolescents. Observational studies were searching in PubMed/Medline, Embase, Scopus, Web of Science, Science Direct, Lilacs, and Google Scholar database. Random effects models were used to summarize standardized mean differences for as a summary measure. The certainty of the evidence was verified using the Cochrane recommendations. A total of 7537 studies were identified, of which 32 were included in the systematic review and 24 in the meta-analysis.Vitamin D deficiency was associated with increased systolic pressure (SMD = 0.22; 95%CI = 0.10; 0.34), diastolic pressure (SMD = 0.23; 95%CI = 0.10; 0.35), glycemia (SMD = 0.13; 95%CI = 0.05; 0.12), and insulin (SMD = 0.50; 95%CI = 0.15; 0.84), an increase in the HOMA index (SMD = 0.48; 95%CI = 0.36; 0.60), high triglyceride values (SMD = 0.30; 95%CI = 0.11; 0.49), and reduced HDL concentrations (SMD= -0.25; 95%CI = -0.46; -0.04). No statistically significant association was observed for glycated hemoglobin, LDL cholesterol, and total cholesterol. Most of the studies presented low and moderate risks of bias, respectively. The certainty of the evidence was very low for all the outcomes analyzed. Vitamin D deficiency was associated with increased exposure to the factors linked to the occurrence of cardiometabolic diseases in adolescents. Systematic Review Registration: PROSPERO (record number 42,018,086,298).
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Affiliation(s)
- Jonas Baltazar Daniel
- Institute of Collective Health, Federal University of Bahia, Rua Basílio da Gama, s/n, 40110-040, Salvador, Bahia, Brazil
| | | | - Marcos Pereira
- Institute of Collective Health, Federal University of Bahia, Rua Basílio da Gama, s/n, 40110-040, Salvador, Bahia, Brazil.
- Institute of Collective Health, Federal University of Bahia, R. Basílio da Gama, s/n - Canela, 40110-040, Salvador, Bahia, Brazil.
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Fan L, Gao Y, Zhou J, Hu H, Gao H. The Efficacy and Safety of Acupuncture for Tinnitus-Associated Insomnia: A Protocol for a Systematic Review and Meta-Analysis. J Pain Res 2022; 15:2957-2965. [PMID: 36171981 PMCID: PMC9511969 DOI: 10.2147/jpr.s383968] [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: 08/02/2022] [Accepted: 09/07/2022] [Indexed: 11/26/2022] Open
Abstract
Background Tinnitus accounts for a significant proportion of the factors that cause insomnia, and insomnia, in turn, aggravates tinnitus. Given that tinnitus and insomnia have a bidirectional relationship, tinnitus-associated insomnia is prevalent. Nonetheless, current treatments including medication and psychological therapies for tinnitus-associated insomnia do not yield satisfactory efficacy, thereby making it challenging to manage. Although acupuncture is a potentially effective treatment option, the current evidence on the efficacy and safety of acupuncture for tinnitus-associated insomnia remains inconclusive. Therefore, this systematic review and analysis protocol aims to investigate whether acupuncture is beneficial for tinnitus-associated insomnia with an acceptable safety profile. Methods Nine mainstream English-language and Chinese-language databases will be searched to include qualified RCTs and meta-analyses will be conducted by combining extracted data using RevMan 5.3. The risk of bias 2.0 tool recommended by Cochrane will be adopted to evaluate the methodological quality of the included RCTs. The Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) approach will be utilized to appraise the strength and certainty of evidence. Where available, we will also perform sensitivity analyses, publication bias and subgroup analysis. Discussion Expected results from our systematic review and meta-analysis will verify the efficacy and safety of acupuncture in tinnitus-associated insomnia. The evidence generated by this review will help patients and clinicians make informed treatment decisions.
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Affiliation(s)
- Lijuan Fan
- The Third Clinical College, Zhejiang Chinese Medical University, Hangzhou City, People's Republic of China
| | - Yiqi Gao
- Department of Traditional Therapy Centre, The Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou City, People's Republic of China
| | - Jie Zhou
- Department of Acupuncture and Moxibustion, The Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou City, People's Republic of China
| | - Hantong Hu
- Department of Acupuncture and Moxibustion, The Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou City, People's Republic of China
| | - Hong Gao
- Department of Acupuncture and Moxibustion, The Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou City, People's Republic of China
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Hu H, Li Z, Cheng Y, Gao H. The Efficacy and Safety of Acupuncture for Depression-Related Insomnia: Protocol for a Systematic Review and Meta-Analysis. J Pain Res 2022; 15:1939-1947. [PMID: 35860419 PMCID: PMC9289569 DOI: 10.2147/jpr.s370476] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 07/02/2022] [Indexed: 01/25/2023] Open
Abstract
Background There is a bidirectional relationship between depression and insomnia. Depression-related insomnia is common and remains a challenging medical condition. Although acupuncture might be a potential treatment option and increasing randomized controlled trials (RCTs) have emerged, currently available evidence regarding the effect and safety of acupuncture on depression-related insomnia remains inconclusive. Thus, this protocol aims to systematically synthesize the evidence about the efficacy and safety of acupuncture for depression-related insomnia. Methods and Analysis Eligible RCTs will be searched in nine representative databases and pooled in meta-analyses using RevMan 5.3. The methodological quality of included studies will be rated by Cochrane’s risk of bias 2.0 tool. The quality of evidence will be appraised using the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) approach. Subgroup analysis, sensitivity analyses, and publication bias will also be conducted. Discussion This protocol outlines the planned scope and methodology for an upcoming systematic review meta-analysis, which will critically synthesize the evidence about the efficacy and safety of acupuncture on depression-related insomnia. Findings will shed light on fulfilling evidence gaps and influence evidence-based treatment decisions for clinicians in the treatment of depression-related insomnia.
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Affiliation(s)
- Hantong Hu
- Department of Acupuncture and Moxibustion, The Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou City, People's Republic of China.,Department of Neurobiology and Acupuncture Research, the Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou City, People's Republic of China
| | - Zengtu Li
- Department of Massage, the Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou City, People's Republic of China
| | - Yingying Cheng
- Department of Acupuncture and Moxibustion, The Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou City, People's Republic of China.,Department of Neurobiology and Acupuncture Research, the Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou City, People's Republic of China
| | - Hong Gao
- Department of Acupuncture and Moxibustion, The Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou City, People's Republic of China.,Department of Neurobiology and Acupuncture Research, the Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou City, People's Republic of China
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Findeisen P, Leis M, Bendig G, Grimme J, Moser E, Vogl C, Christenson R. A multicenter performance evaluation of the new Elecsys Vitamin D total
III
assay versus reference isotope dilution liquid chromatography tandem mass spectrometry and commercially available comparators. J Clin Lab Anal 2022; 36:e24610. [PMID: 35852988 PMCID: PMC9459274 DOI: 10.1002/jcla.24610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 06/30/2022] [Accepted: 07/03/2022] [Indexed: 11/25/2022] Open
Abstract
Background Vitamin D deficiency/insufficiency and toxicity are worldwide issues; thus, accurate diagnostic assays are required to measure vitamin D. We evaluated the performance of the new Elecsys® Vitamin D total III assay (Roche Diagnostics International Ltd). Methods Repeatability and intermediate precision of the Elecsys Vitamin D total III assay (cobas e 601 analyzer) were evaluated at three sites using five human serum pools (HSPs) and two PreciControls (five‐day model, one reagent lot [CLSI‐EP05‐A3]) and compared against prespecified acceptance criteria. A serum verification panel, with reference isotope dilution liquid chromatography tandem mass spectrometry (ID‐LC–MS/MS) values, was used for comparator assay/concordance studies at two sites, assessed using unweighted Deming regression. Testing of serum vs. plasma on the Elecsys assay was conducted at one site using samples from healthy adults; assessed using Passing‐Bablok regression. Results Repeatability (HSP1 [16.8–18.4 ng/ml], SD 0.87–1.07; HSP5 [94.5–98.0 ng/ml], CV 1.58%–2.76%) and intermediate precision (HSP1, SD 1.14–1.77; HSP5, CV 2.00%–4.13%) met acceptance criteria across sites. Agreement was observed between the Elecsys assay and (i) the ID‐LC–MS/MS verification panel (slope, 0.936–1.01; Pearson's r, 0.960–0.986) and (ii) comparator assays (slope, 0.921–1.15; Pearson's r, 0.958–0.982). The Elecsys assay correctly assigned the highest combined percentage of samples to deficient (100%) and insufficient (89.5%) vitamin D categories vs. comparator assays and demonstrated comparable performance in serum and plasma (y = 0.103 + 0.984x). Conclusions The Elecsys Vitamin D total III assay demonstrated good analytical performance and compared favorably with other assays, supporting its use in clinical practice.
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Qorbani M, Zarei M, Moradi Y, Appannah G, Djalainia S, Pourrostami K, Ejtahed HS, Mahdavi-Gorabi A, Naderali EK, Khazdouz M. Effect of vitamin D supplementation on cardiac-metabolic risk factors in elderly: a systematic review and meta-analysis of clinical trials. Diabetol Metab Syndr 2022; 14:88. [PMID: 35752843 PMCID: PMC9233853 DOI: 10.1186/s13098-022-00859-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Accepted: 06/10/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND There has been a longstanding interest in the potential effect of vitamin D in preventing cardiac-metabolic diseases. However, there are divergent results regarding the impact of vitamin D supplementation (VDS) on managing cardiac-metabolic outcomes in the elderly population. MATERIAL AND METHOD We systematically searched electronic databases; Web of Science, PubMed, Scopus, EMBASE, Cochrane, and ProQuest. We included all trials that evaluated the effect of VDS on cardiac-metabolic risk factors in the elderly population, which were published until 30 September 2021. The effects of VDS on cardiac-metabolic outcomes were assessed using standardized mean difference (SMD). A random-effect model was used to pool the SMD and 95% confidence interval (CI). RESULT The literature search identified 4409 studies, of which 12 trials met inclusion criteria. Results of random effect meta-analysis indicated a significant reduction in total cholesterol (TC) (SMD: - 0.14 mg/dl; 95% CI: - 0.25, - 0.02) and triglyceride (TG) (SMD: - 0.45 mg/dl; 95% CI: - 0.86, - 0.04) with VDS compared to the placebo. The subgroup analyses revealed that the reduction of TG in patients with diabetes and vitamin D deficiency was significant. Furthermore, short-term intervention (≤ 6 months) induced a significantly lower level of TG and insulin in comparison to longer duration (> 6 months). CONCLUSION The study suggests that VDS could improve insulin concentration and dyslipidemia in the elderly population. The systematic review was registered in Alborz university of medical sciences with 2060-01-03-1397 number and the Ethics council IR.ABZUMS.REC.1397.207 number.
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Affiliation(s)
- Mostafa Qorbani
- Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Zarei
- Department of Nutrition Community, Deputy of Health affairs, Ministry of Health and Medical Education, Tehran, Iran
| | - Yousef Moradi
- Social Determinants of Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
- Department of Epidemiology and Biostatistics, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Geeta Appannah
- Department of Nutrition, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor Malaysia
| | - Shirin Djalainia
- Development of Research & Technology Center, Deputy of Research and Technology, Ministry of Health and Medical Education, Tehran, Iran
| | - Kumars Pourrostami
- Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Hanieh-Sadat Ejtahed
- Obesity and Eating Habits Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Armita Mahdavi-Gorabi
- Social Determinants of Health Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | | | - Maryam Khazdouz
- Growth and Development Research Center, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran
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Johny E, Jala A, Nath B, Alam MJ, Kuladhipati I, Das R, Borkar RM, Adela R. Vitamin D Supplementation Modulates Platelet-Mediated Inflammation in Subjects With Type 2 Diabetes: A Randomized, Double-Blind, Placebo-Controlled Trial. Front Immunol 2022; 13:869591. [PMID: 35720377 PMCID: PMC9205628 DOI: 10.3389/fimmu.2022.869591] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 04/27/2022] [Indexed: 11/13/2022] Open
Abstract
Background Recently, our group identified increased platelet-mediated inflammation in type 2 diabetes (T2DM) patients, and it is a well-established risk factor for diabetes complications, particularly for the development of cardiovascular diseases (CVD). Furthermore, vitamin D is reported to play an important role in the modulation of platelet hyperactivity and immune function, although the effect of vitamin D on platelet-mediated inflammation is not well studied. Hence, we aimed to investigate the effect of vitamin D supplementation on platelet-mediated inflammation in T2DM patients. Methods After screening a total of 201 subjects, our randomized, double-blind, placebo-controlled trial included 59 vitamin-D-deficient T2DM subjects, and the participants were randomly assigned to placebo (n = 29) or vitamin D3 (n = 30) for 6 months. Serum vitamin D metabolite levels, immunome profiling, platelet activation, and platelet-immune cell aggregate formation were measured at baseline and at the end of the study. Similarly, the serum levels of inflammatory cytokines/chemokines were assessed by a multiplex assay. Results Six months of vitamin D supplementation increases the serum vitamin D3 and total 25(OH)D levels from the baseline (p < 0.05). Vitamin D supplementation does not improve glycemic control, and no significant difference was observed in immune cells. However, platelet activation and platelet immune cell aggregates were altered after the vitamin D intervention (p < 0.05). Moreover, vitamin D reduces the serum levels of IL-18, TNF-α, IFN-γ, CXCL-10, CXCL-12, CCL-2, CCL-5, CCL-11, and PF-4 levels compared to the baseline levels (p < 0.05). Our ex vivo experiment confirms that a sufficient circulating level of vitamin D reduces platelet activation and platelet intracellular reactive oxygen species. Conclusion Our study results provide evidence that vitamin D supportive therapy may help to reduce or prevent the disease progression and cardiovascular risk in T2DM patients by suppressing oxidative stress and platelet-mediated inflammation. Clinical Trial Registration Clinical Trial Registry of India: CTRI/2019/01/016921.
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Affiliation(s)
- Ebin Johny
- Department of Pharmacy Practice, National Institute of Pharmaceutical Education and Research, Guwahati, India
| | - Aishwarya Jala
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research, Guwahati, India
| | - Bishamber Nath
- Department of Pharmacy Practice, National Institute of Pharmaceutical Education and Research, Guwahati, India
| | - Md Jahangir Alam
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, Guwahati, India
| | | | | | - Roshan M Borkar
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research, Guwahati, India
| | - Ramu Adela
- Department of Pharmacy Practice, National Institute of Pharmaceutical Education and Research, Guwahati, India
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Wang F, Zhou L, Zhu D, Yang C. A Retrospective Analysis of the Relationship Between 25-OH-Vitamin D and Diabetic Foot Ulcer. Diabetes Metab Syndr Obes 2022; 15:1347-1355. [PMID: 35535217 PMCID: PMC9078343 DOI: 10.2147/dmso.s358170] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 04/27/2022] [Indexed: 11/23/2022] Open
Abstract
Background The fat-soluble molecule vitamin D has attracted much attention since its pleiotropism was discovered. Its effectiveness can be attributed to the presence of vitamin D receptors in most of the body's tissues. Based on the classical role of vitamin D in regulating calcium and phosphorus metabolism and maintaining bone health, the role of vitamin D in immunity, type 2 diabetes mellitus (T2DM), tumor and cardiovascular diseases has been further discovered. Some experiments have shown that vitamin D can restore the production of antimicrobial peptides (AMP) in primary diabetic foot ulcer (DFU) cells, which can improve in vitro wound healing, indicating its potential therapeutic use in DFU therapy. In addition, vitamin D can also inhibit the secretion of T-helper type 1 (Th1) cytokines IFN-Y and IL-2 while stimulating the production of Th2 cytokines, thereby promoting wound healing. Objective To investigate the relationship between 25-OH-vitamin D level and DFU in diabetes mellitus (DM) patients, and to provide a theoretical basis for the early prevention and treatment of DFU. Methods The clinical data of 429 hospitalized patients with DM were retrospectively analyzed in this case-control study. The patients were divided into the DFU group (n = 242) and non-DFU group (n = 187). Fasting venous blood was drawn from all subjects to detect serum 25-OH-vitamin D levels and blood biochemical parameters, the difference of parameters between DFU group and non-DFU group were analyzed, and the risk factors of DFU were analyzed by logistic regression. Results The difference between the two groups in age, DM duration, gender, diastolic blood pressure, serum creatinine, total cholesterol, triglyceride, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, alanine aminotransferase, aspartate aminotransferase, albumin, white blood cell count, hemoglobin, hematocrit, 25-OH-vitamin D was statistically significant (p < 0.05). Multivariate logistic regression analysis showed that 25-OH-vitamin D is an independent protective factor for DFU [OR 95%, CI 0.984 (0.969, 0.998), p < 0.05]. 25-OH-vitamin D nutrition status distribution was different between non-DFU group and DFU group (P < 0.05). Vitamin D deficiency (< 50 nmol/L) accounted for 86.78% of all DFU patients, which was only 74.33% in non-DFU patients. The 25-OH-vitamin D levels of DFU patients from Wagner Grades 1 to 5 showed a downward trend (p < 0.01). Conclusion In conclusion, our study confirms that 25-OH-vitamin D is closely correlated with DFU and that 25-OH-vitamin D is an independent protective factor for DFU. Therefore, vitamin D screening or supplementation might be beneficial to prevent DFU and improve the prognosis of DM patients.
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Affiliation(s)
- Fenglin Wang
- Hebei North University, Zhangjiakou, Hebei, 075000, People’s Republic of China
- Department of Endocrinology, Air Force Medical Center, Beijing, 100142, People’s Republic of China
| | - Luyao Zhou
- Hebei North University, Zhangjiakou, Hebei, 075000, People’s Republic of China
| | - Di Zhu
- Department of Endocrinology, Air Force Medical Center, Beijing, 100142, People’s Republic of China
| | - Caizhe Yang
- Department of Endocrinology, Air Force Medical Center, Beijing, 100142, People’s Republic of China
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Chen S, Zheng C, Chen T, Huang D, Pan Y, Chen S. Relationship Between Plasma Vitamin C and COVID-19 Susceptibility and Severity: A Two-Sample Mendelian Randomization Study. Front Med (Lausanne) 2022; 9:844228. [PMID: 35355592 PMCID: PMC8959865 DOI: 10.3389/fmed.2022.844228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 02/04/2022] [Indexed: 01/08/2023] Open
Abstract
Background Considering the antioxidant function of Vitamin C, also called ascorbic acid, it is widely used against viral infections such as coronavirus disease (COVID-19) based on in vitro, observational, and ecological studies. Many confounding factors that can affect Vitamin C levels. Thus, the association described to date may not be causal. To determine the causal relationship between genetically predicted plasma Vitamin C and COVID-19 susceptibility and severity, we performed two-sample Mendelian randomization (MR) based on large samples. Methods The summary-level data for Vitamin C was obtained from a GWAS meta-analysis, which included 52,018 individuals from four studies of European ancestry. Data for COVID-19 HGI results were obtained from the meta-analysis of 35 GWASs with more than 1,000,000 subjects of European ancestry, including 32,494 cases with COVID-19 susceptibility and 1,316,207 controls, 9,986 cases with COVID-19 hospitalization and 1,877,672 controls, and 5,101 cases with COVID-19 severe disease and 1,383,241 controls. Mendelian randomization (MR) analysis was conducted to examine the effect of selected single nucleotide polymorphisms and COVID-19 susceptibility, hospitalization, disease severity. Several sensitivity analyses were performed with inverse-variance weighted (random-effect model), inverse variance weighted (fixed-effect model), weighted median, and maximum likelihood methods for estimating the causal effects. Results In this MR study, genetic predisposition to the levels of plasma Vitamin C was not associated with COVID-19 susceptibility (OR: 0.99, 95% CI: 0.84–1.17, P = 0.91), hospitalization (OR: 1.10, 95% CI: 0.71–1.71, P = 0.67) and severity (OR: 0.83, 95% CI: 0.43–1.59, P = 0.58). The association was consistent in complementary analyses. No potential heterogeneities and directional pleiotropies were observed for the analysis results. Conclusion According to our study, no correlation was observed between plasma Vitamin C levels and COVID-19 susceptibility and severity. Further studies in different ethnics are necessary to explore the potential role and mechanisms of circulating serum Vitamin C levels on COVID-19.
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Affiliation(s)
- Song Chen
- Department of Orthopedics, Fuzhou Second Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Changhua Zheng
- Department of Cardiology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Tianlai Chen
- The Third Department of Clinical Medicine, Fujian Medical University, Fuzhou, China
| | - Dianhua Huang
- Department of Orthopedics, Fuzhou Second Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Yuancheng Pan
- Department of Orthopedics, Fuzhou Second Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Shunyou Chen
- Department of Orthopedics, Fuzhou Second Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
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The Effect of Diet and Lifestyle on the Course of Diabetic Retinopathy-A Review of the Literature. Nutrients 2022; 14:nu14061252. [PMID: 35334909 PMCID: PMC8955064 DOI: 10.3390/nu14061252] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/10/2022] [Accepted: 03/14/2022] [Indexed: 12/23/2022] Open
Abstract
Diabetes is a major social problem. As shown by epidemiological studies, the world incidence of diabetes is increasing and so is the number of people suffering from its complications. Therefore, it is important to determine possible preventive tools. In the prevention of diabetic retinopathy, it is essential to control glycemia, lipid profile and blood pressure. This can be done not only by pharmacological treatment, but first of all by promoting a healthy lifestyle, changing dietary habits and increasing physical activity. In our work, we present a review of the literature to show that physical exercise and an adequate diet can significantly reduce the risk of diabetes and diabetic retinopathy.
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Herrera MT, Juárez E, Guzmán-Beltrán S, Torres M, Luna-Morales VA, Villalana-Alvarez LD, González Y. High Vitamin D Concentrations Restore the Ability to Express LL37 by M. tuberculosis-Infected Human Macrophages. Biomolecules 2022; 12:biom12020268. [PMID: 35204769 PMCID: PMC8961537 DOI: 10.3390/biom12020268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/27/2022] [Accepted: 01/30/2022] [Indexed: 11/16/2022] Open
Abstract
Vitamin D has an immunomodulatory function and is involved in eliminating pathogens. Vitamin D deficiencies reported in Type 2 diabetes mellitus (T2DM) patients make them more susceptible to developing tuberculosis (TB). The macrophages are the immune cells that control intracellular pathogens by producing the antimicrobial peptide cathelicidin-LL37. This pathway involves TLR activation by pathogens, vitamin D receptor (VDR) ligation, and the enzyme 1α-hydroxylase Cytochrome P450 Family 27 Subfamily B Member 1 (CYP27B1). However, it is not clear whether the biological actions of vitamin D are affected by high glucose concentrations. This study aimed to evaluate the vitamin D contribution in the expression of VDR and CYP27B1, involved in the conversion of an inactive to an active form of vitamin D in the infected macrophages using M. tuberculosis as an infection model. The expression of LL37 and the nucleus translocation of VDR were evaluated as the readout of the response of vitamin D and determined if those processes are affected by glucose concentrations. Macrophages from healthy donors were cultured under glucose concentrations of 5.5, 15, or 30 mM, stimulated with vitamin D in inactive (25(OH)D3) or active (1,25(OH)2D3) forms, and infected with M. tuberculosis. The vitamin D-dependent induction of LL37 and the expression of VDR and CYP27B1 genes were analyzed by qPCR, and VDR translocation was analyzed in nuclear protein extracts by ELISA. M. tuberculosis downregulated the expression of LL37 regardless of the glucose concentration, whereas VDR and CYP27B1 upregulated it regardless of the glucose concentration. After evaluating two concentrations of vitamin D, 1 nM or 1 μM, the high concentration (1 μM) was necessary to restore the induction of LL37 expression in M. tuberculosis-infected macrophages. High concentrations of the inactive form of vitamin D restore the infected macrophages’ ability to express LL37 regardless of the glucose concentration. This finding supports the idea that vitamin D administration in patients with T2DM could benefit TB control and prevention.
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Affiliation(s)
- María Teresa Herrera
- Department of Microbiology Research, National Institute for Respiratory Diseases, Ismael Cosío Villegas, Mexico City 14080, Mexico; (M.T.H.); (E.J.); (S.G.-B.)
| | - Esmeralda Juárez
- Department of Microbiology Research, National Institute for Respiratory Diseases, Ismael Cosío Villegas, Mexico City 14080, Mexico; (M.T.H.); (E.J.); (S.G.-B.)
| | - Silvia Guzmán-Beltrán
- Department of Microbiology Research, National Institute for Respiratory Diseases, Ismael Cosío Villegas, Mexico City 14080, Mexico; (M.T.H.); (E.J.); (S.G.-B.)
| | - Martha Torres
- Biomedical Research Sub Direction, National Institute for Respiratory Diseases, Ismael Cosío Villegas, Mexico City 14080, Mexico;
| | - Victor Adrián Luna-Morales
- Facultad de Ciencias, Universidad Nacional Autónoma de México, Mexico City 14080, Mexico; (V.A.L.-M.); (L.D.V.-A.)
| | | | - Yolanda González
- Department of Microbiology Research, National Institute for Respiratory Diseases, Ismael Cosío Villegas, Mexico City 14080, Mexico; (M.T.H.); (E.J.); (S.G.-B.)
- Correspondence: ; Tel.: +(52)-55-5487-1734; Fax: +(52)-55-5487-1700 (ext. 5117)
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Patel DG, Kurian SJ, Miraj SS, Rashid M, Thomas L, Rodrigues GS, Banerjee M, Khandelwal B, Saravu K, Rao M. Effect of Vitamin D Supplementation in Type 2 Diabetes Patients with Tuberculosis: A Systematic Review. Curr Diabetes Rev 2022; 18:e020921196096. [PMID: 34473618 DOI: 10.2174/1573399817666210902144539] [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: 02/27/2021] [Revised: 07/12/2021] [Accepted: 07/13/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Diabetes mellitus (DM) and tuberculosis (TB) have been recognized as reemerging epidemics, especially in developing countries. Among all the risk factors, diabetes causes immunosuppression, increasing the risk of active TB three times. Vitamin D has been found as a link between DM-TB co-morbidity. OBJECTIVE Vitamin D affects the immune response, suppresses Mycobacterium tuberculosis (Mtb) growth, and affects insulin secretion. The present systematic review determines the effect of vitamin D supplementation on clinical and therapeutic outcomes of DM-TB patients. METHOD A comprehensive literature search was carried out in PubMed, Cochrane, Web of Science, and Scopus database to determine eligible studies from inception to January 2021. Out of the 639 articles retrieved, three randomized controlled trials (RCTs) were included in the systematic review. RESULT The effect of vitamin D3 or oral cholecalciferol supplementation was assessed on outcomes, such as duration to sputum smear conversion, TB scores improvement, change in glycemic parameters, including HbA1c, FBS, and PLBS, and laboratory parameters, such as Hb, ESR, and CRP. Duration of sputum smear conversion was decreased by two weeks in the vitamin D3 supplemented group in two studies. TB score improvement and changes in glycemic parameters were inclined towards supplemented group; however, they were not significant. CONCLUSION The overall effect of vitamin D3 supplementation on TB patients with DM was not significant. Further studies are required in the future examining the effect of supplementation on outcomes in this population.
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Affiliation(s)
- Divya Girishbhai Patel
- Department of Pharmacy Practice, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka-576104, India
| | - Shilia Jacob Kurian
- Department of Pharmacy Practice, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka-576104, India
- Manipal Center for Infectious Diseases, Prasanna School of Public Health, Manipal Academy of Higher Education, Karnataka-576104, India
| | - Sonal Sekhar Miraj
- Department of Pharmacy Practice, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka-576104, India
- Manipal Center for Infectious Diseases, Prasanna School of Public Health, Manipal Academy of Higher Education, Karnataka-576104, India
| | - Muhammed Rashid
- Department of Pharmacy Practice, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka-576104, India
| | - Levin Thomas
- Department of Pharmacy Practice, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka-576104, India
| | - Gabriel Sunil Rodrigues
- Department of Surgery, Kasturba Medical College and Hospital, Manipal Academy of Higher Education, Manipal, Karnataka-576104, India
| | - Mithu Banerjee
- Department of Biochemistry, All India Institute of Medical Sciences Jodhpur, Rajasthan-342005, India
| | - Bidita Khandelwal
- Department of Medicine, Sikkim Manipal Institute of Medical Sciences, Sikkim Manipal University, Gangtok, Sikkim-737102, India
| | - Kavitha Saravu
- Manipal Center for Infectious Diseases, Prasanna School of Public Health, Manipal Academy of Higher Education, Karnataka-576104, India
- Department of Infectious Diseases, Kasturba Medical College and Hospital, Manipal Academy of Higher Education, Manipal, Karnataka- 576104, India
| | - Mahadev Rao
- Department of Pharmacy Practice, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka-576104, India
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Zou Y, Guo B, Yu S, Wang D, Qiu L, Jiang Y. Effect of vitamin D supplementation on glycose homeostasis and islet function in vitamin D deficient or insufficient diabetes and prediabetes: a systematic review and meta-analysis. J Clin Biochem Nutr 2021; 69:229-237. [PMID: 34857984 PMCID: PMC8611361 DOI: 10.3164/jcbn.20-165] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Accepted: 10/25/2020] [Indexed: 11/25/2022] Open
Abstract
Objective of the present study was to evaluate the effect of vitamin D supplementation on glycose homeostasis, islet function, and diabetes progress. Literatures were searched via electronic databases, websites, and previous reviews from the earliest available time to the end of May 2020. Randomized controlled trials initially designed for diabetes and prediabetes with 25-dihydroxyvitamin D [25(OH)D]<30 ng/ml were included. All data were analyzed and presented based on the Cochrane guidelines and PRISMA guidelines. In total, 27 articles (n = 1,932) were enrolled in this study. Vitamin D supplementation significantly improved fasting blood glucose, postprandial blood glucose, and quantitative insulin sensitivity check index in diabetes and prediabetes with baseline 25(OH)D<30 ng/ml. Higher percentages regressing from prediabetes to normal glucose status [1.60 (1.19, 2.17), p = 0.002, n = 564] and lower percentage progressing from prediabetes to diabetes [0.68 (0.36, 1.27), p = 0.23, n = 569] were found in the supplementation group. The positive effects of vitamin D supplementation on body mass index, waist, HDL-C, LDL-C, and CRP were also demonstrated. In conclusion, modest improvements in vitamin D supplementation on short-term glycose homeostasis, insulin sensitivity, and disease development in diabetes and prediabetes with 25(OH)D<30 ng/ml were demonstrated, but more research needs to be conducted in the future to support the clinical application. (Register ID: CRD42020186004)
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Affiliation(s)
- Yutong Zou
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No. 1 Shuaifu Yuan, Dongcheng District, Beijing 100730, China
| | - Bo Guo
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No. 1 Shuaifu Yuan, Dongcheng District, Beijing 100730, China
| | - Songlin Yu
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No. 1 Shuaifu Yuan, Dongcheng District, Beijing 100730, China
| | - Danchen Wang
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No. 1 Shuaifu Yuan, Dongcheng District, Beijing 100730, China
| | - Ling Qiu
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No. 1 Shuaifu Yuan, Dongcheng District, Beijing 100730, China
| | - Yu Jiang
- Department of Epidemiology and Biostatistics, School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 9 Dongdan Santiao, Dongcheng District, Beijing 100730, China
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Kim YA, Yoon JW, Lee Y, Choi HJ, Yun JW, Bae E, Kwon SH, Ahn SE, Do AR, Jin H, Won S, Park DJ, Shin CS, Seo JH. Unveiling Genetic Variants Underlying Vitamin D Deficiency in Multiple Korean Cohorts by a Genome-Wide Association Study. Endocrinol Metab (Seoul) 2021; 36:1189-1200. [PMID: 34852423 PMCID: PMC8743587 DOI: 10.3803/enm.2021.1241] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 10/19/2021] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Epidemiological data have shown that vitamin D deficiency is highly prevalent in Korea. Genetic factors influencing vitamin D deficiency in humans have been studied in Europe but are less known in East Asian countries, including Korea. We aimed to investigate the genetic factors related to vitamin D levels in Korean people using a genome-wide association study (GWAS). METHODS We included 12,642 subjects from three different genetic cohorts consisting of Korean participants. The GWAS was performed on 7,590 individuals using linear or logistic regression meta- and mega-analyses. After identifying significant single nucleotide polymorphisms (SNPs), we calculated heritability and performed replication and rare variant analyses. In addition, expression quantitative trait locus (eQTL) analysis for significant SNPs was performed. RESULTS rs12803256, in the actin epsilon 1, pseudogene (ACTE1P) gene, was identified as a novel polymorphism associated with vitamin D deficiency. SNPs, such as rs11723621 and rs7041, in the group-specific component gene (GC) and rs11023332 in the phosphodiesterase 3B (PDE3B) gene were significantly associated with vitamin D deficiency in both meta- and mega-analyses. The SNP heritability of the vitamin D concentration was estimated to be 7.23%. eQTL analysis for rs12803256 for the genes related to vitamin D metabolism, including glutamine-dependent NAD(+) synthetase (NADSYN1) and 7-dehydrocholesterol reductase (DHCR7), showed significantly different expression according to alleles. CONCLUSION The genetic factors underlying vitamin D deficiency in Korea included polymorphisms in the GC, PDE3B, NADSYN1, and ACTE1P genes. The biological mechanism of a non-coding SNP (rs12803256) for DHCR7/NADSYN1 on vitamin D concentrations is unclear, warranting further investigations.
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Affiliation(s)
- Ye An Kim
- Division of Endocrinology, Department of Internal Medicine, Veterans Health Service Medical Center, Seoul,
Korea
| | - Ji Won Yoon
- Healthcare System Gangnam Center, Seoul National University Hospital, Seoul,
Korea
| | - Young Lee
- Veterans Medical Research Institute, Veterans Health Service Medical Center, Seoul,
Korea
| | - Hyuk Jin Choi
- Healthcare System Gangnam Center, Seoul National University Hospital, Seoul,
Korea
| | - Jae Won Yun
- Veterans Medical Research Institute, Veterans Health Service Medical Center, Seoul,
Korea
| | - Eunsin Bae
- Veterans Medical Research Institute, Veterans Health Service Medical Center, Seoul,
Korea
| | - Seung-Hyun Kwon
- Veterans Medical Research Institute, Veterans Health Service Medical Center, Seoul,
Korea
| | - So Eun Ahn
- Department of Public Health Science, Seoul National University, Seoul,
Korea
| | - Ah-Ra Do
- Department of Public Health Science, Seoul National University, Seoul,
Korea
| | - Heejin Jin
- Institute of Health and Environment, Seoul National University, Seoul,
Korea
| | - Sungho Won
- Department of Public Health Science, Seoul National University, Seoul,
Korea
- Institute of Health and Environment, Seoul National University, Seoul,
Korea
- RexSoft, Inc.,
Korea
| | - Do Joon Park
- Department of Internal Medicine, Seoul National University, Seoul,
Korea
| | - Chan Soo Shin
- Department of Internal Medicine, Seoul National University, Seoul,
Korea
| | - Je Hyun Seo
- Veterans Medical Research Institute, Veterans Health Service Medical Center, Seoul,
Korea
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Girard E, Nacher M, Bukasa-Kakamba J, Fahrasmane A, Adenis A, Massicard M, Drak Alsibai K, De Toffol B, Bekima R, Thelusme L, Okambabelle D, Demar M, Aurelus JM, Sabbah N. Vitamin D Deficiency in Patients with Diabetes in French Guiana: Epidemiology and Relation with Microvascular and Macrovascular Complications. Nutrients 2021; 13:nu13124302. [PMID: 34959854 PMCID: PMC8707589 DOI: 10.3390/nu13124302] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 11/24/2021] [Accepted: 11/25/2021] [Indexed: 01/12/2023] Open
Abstract
Vitamin D (VD) insufficiency is common among patients with diabetes in French Guiana. The study aimed to evaluate the prevalence of VD deficiency in the different type of diabetes encountered and to analyze the relationship between VD deficiency and diabetes complications. Methods: An observational study was conducted between May 2019 and May 2020 in French Guiana, based on data from the CODIAM study (Diabetes Cohort in French Amazonia), describing the characteristics of patients with diabetes mellitus. Among 600 patients enrolled with diabetes, 361 had an available VD assay. Results: The mean 25(OH)VD (hydroxycalciferol) level was 27.9 ng/mL. The level of VD was inversely proportional to the HbA1c (glycated hemoglobin) level. Patients with angina pectoris had a greater proportion of deficiencies VD < 20 ng/mL than those without angina. By contrast, patients with retinopathy had higher vitamin D concentrations than those without retinopathy. There was no association between vitamin D and arteriopathy, stroke, nephropathy and polyneuropathy. VD deficiency was more frequent in women, and in patients with a high school education. Conclusion: The prevalence of VD deficiency was high in patients with diabetes in French Guiana, emphasizing the importance of VD supplementation.
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Affiliation(s)
- Elise Girard
- Cayenne Hospital Center, Department of Endocrinology and Metabolic Diseases, 97306 Cayenne, French Guiana; (E.G.); (J.B.-K.); (M.M.); (R.B.); (L.T.); (D.O.); (J.M.A.)
| | - Mathieu Nacher
- Clinical Investigation Center Antilles French Guiana (CIC INSERM 1424), Cayenne Hospital Center, 97306 Cayenne, French Guiana; (M.N.); (A.F.); (A.A.)
| | - John Bukasa-Kakamba
- Cayenne Hospital Center, Department of Endocrinology and Metabolic Diseases, 97306 Cayenne, French Guiana; (E.G.); (J.B.-K.); (M.M.); (R.B.); (L.T.); (D.O.); (J.M.A.)
| | - Aniza Fahrasmane
- Clinical Investigation Center Antilles French Guiana (CIC INSERM 1424), Cayenne Hospital Center, 97306 Cayenne, French Guiana; (M.N.); (A.F.); (A.A.)
| | - Antoine Adenis
- Clinical Investigation Center Antilles French Guiana (CIC INSERM 1424), Cayenne Hospital Center, 97306 Cayenne, French Guiana; (M.N.); (A.F.); (A.A.)
| | - Mickael Massicard
- Cayenne Hospital Center, Department of Endocrinology and Metabolic Diseases, 97306 Cayenne, French Guiana; (E.G.); (J.B.-K.); (M.M.); (R.B.); (L.T.); (D.O.); (J.M.A.)
| | - Kinan Drak Alsibai
- Department of Pathology and Center of Biological Resources (CRB Amazonie), Cayenne Hospital Center, 97306 Cayenne, French Guiana;
| | - Bertrand De Toffol
- Department of Neurology Cayenne Hospital Center, 97306 Cayenne, French Guiana;
| | - Raissa Bekima
- Cayenne Hospital Center, Department of Endocrinology and Metabolic Diseases, 97306 Cayenne, French Guiana; (E.G.); (J.B.-K.); (M.M.); (R.B.); (L.T.); (D.O.); (J.M.A.)
| | - Liliane Thelusme
- Cayenne Hospital Center, Department of Endocrinology and Metabolic Diseases, 97306 Cayenne, French Guiana; (E.G.); (J.B.-K.); (M.M.); (R.B.); (L.T.); (D.O.); (J.M.A.)
| | - Diana Okambabelle
- Cayenne Hospital Center, Department of Endocrinology and Metabolic Diseases, 97306 Cayenne, French Guiana; (E.G.); (J.B.-K.); (M.M.); (R.B.); (L.T.); (D.O.); (J.M.A.)
| | - Magalie Demar
- Laboratory of Parasitology-Mycology (LHUPM), Cayenne Hospital Center, 97306 Cayenne, French Guiana;
- EA3593, Amazon Ecosystems and Tropical Diseases, University of Guiana, 97300 Cayenne, French Guiana
| | - Jean M. Aurelus
- Cayenne Hospital Center, Department of Endocrinology and Metabolic Diseases, 97306 Cayenne, French Guiana; (E.G.); (J.B.-K.); (M.M.); (R.B.); (L.T.); (D.O.); (J.M.A.)
| | - Nadia Sabbah
- Cayenne Hospital Center, Department of Endocrinology and Metabolic Diseases, 97306 Cayenne, French Guiana; (E.G.); (J.B.-K.); (M.M.); (R.B.); (L.T.); (D.O.); (J.M.A.)
- Clinical Investigation Center Antilles French Guiana (CIC INSERM 1424), Cayenne Hospital Center, 97306 Cayenne, French Guiana; (M.N.); (A.F.); (A.A.)
- Correspondence: ; Tel.: +594-594395276; Fax: +594-594394805
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Barham A, Mohammad B, Hasoun L, Awwad S, Mosleh I, Aljaberi A, Abu-Samak M. The combination of omega-3 fatty acids with high doses of vitamin D3 elevate A1c levels: A randomized Clinical Trial in people with vitamin D deficiency. Int J Clin Pract 2021; 75:e14779. [PMID: 34482574 DOI: 10.1111/ijcp.14779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Accepted: 08/30/2021] [Indexed: 11/30/2022] Open
Abstract
PURPOSE This randomised clinical trial (RCT) was created to assess the influence of 1,25-dihydroxyvitamin D (VD3 ), omega-3 fatty acids (n-3FA) and their combination (D+) on glycated haemoglobin (A1c) levels in Jordanian peoples with vitamin D deficiency (VDD). PARTICIPANTS AND METHODS This RCT was designed to examine the follow-up (2 months) effect of either 50 000 IU VD3 , 300 mg n-3FA, or the combination of the two supplements on glycated Haemoglobin (A1c) levels in 146 Jordanian women and men with VDD, aged from 25 to 55 years. The eligible participants were randomised into four groups: Control (C); VD3 supplementation (50 000 IU of VD3 was taken weekly) (D3 ); n-3FA supplementation (300 mg of omega-3FA was taken daily) (n-3FA); VD3 and omega-3 supplementation group (D+) with the same protocol as the previous two groups. RESULTS The combination therapy (n-3FA plus VD3) for 8 weeks significantly increased A1c levels (5.79 ± 0.34 vs 5.41 ± 0.33, P < .001). Tukey test for post hoc comparisons of A1c at follow-up showed that the A1c mean levels were remarkably higher in the D+ study group comparing to the control group (5.78 vs 5.38). CONCLUSION The intervention of n-3FA alone or in combination with high doses of VD3 may lead to negative effects on glycaemic control or accelerate the insulin resistance's development in susceptible people for diabetes mellitus (type 2).
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Affiliation(s)
- Abeer Barham
- Department of Clinical Pharmacy and Therapeutics, Applied Science Private University, Amman, Jordan
| | - Beisan Mohammad
- Pharmaceutical Sciences Department, Fakeeh College for Medical Sciences, Jeddah, Kingdom of Saudi Arabia
| | - Luai Hasoun
- Department of Clinical Pharmacy and Therapeutics, Applied Science Private University, Amman, Jordan
| | - Shady Awwad
- Department of Pharmaceutical Chemistry & Pharmacognosy, Applied Science Private University, Amman, Jordan
| | - Ibrahim Mosleh
- Department of Clinical Laboratory Sciences, University of Jordan, Amman, Jordan
| | - Ahmad Aljaberi
- Department of Pharmaceutical Sciences and Pharmaceutics, Applied Science Private University, Amman, Jordan
| | - Mahmoud Abu-Samak
- Department of Clinical Pharmacy and Therapeutics, Applied Science Private University, Amman, Jordan
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Yoon BW, Shin HT, Seo J. Risk Allele Frequency Analysis of Single-Nucleotide Polymorphisms for Vitamin D Concentrations in Different Ethnic Group. Genes (Basel) 2021; 12:genes12101530. [PMID: 34680925 PMCID: PMC8536051 DOI: 10.3390/genes12101530] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 09/24/2021] [Accepted: 09/24/2021] [Indexed: 01/08/2023] Open
Abstract
The prevalence of vitamin D deficiency varies from 20.8% to 61.6% among populations of different ethnicities, suggesting the existence of a genetic component. The purpose of this study was to provide insights into the genetic causes of vitamin D concentration differences among individuals of diverse ancestry. We collected 320 single-nucleotide polymorphisms (SNPs) associated with vitamin D concentrations from a genome-wide association studies catalog. Their population-level allele frequencies were derived based on the 1000 Genomes Project and Korean Reference Genome Database. We used Fisher's exact tests to assess the significance of the enrichment or depletion of the effect allele at a given SNP in the database. In addition, we calculated the SNP-based genetic risk score (GRS) and performed correlation analysis with vitamin D concentration that included latitude. European, American, and South Asian populations showed similar heatmap patterns, whereas African, East Asian, and Korean populations had distinct ones. The GRS calculated from allele frequencies of vitamin D concentration was highest among Europeans, followed by East Asians and Africans. In addition, the difference in vitamin D concentration was highly correlated with genetic factors rather than latitude effects.
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Affiliation(s)
- Byung-Woo Yoon
- Division of Oncology, Department of Internal Medicine, Inje University Seoul Paik Hospital, Seoul 04551, Korea;
| | - Hyun-Tae Shin
- Department of Dermatology, Inha University School of Medicine, Incheon 22212, Korea;
| | - Jehyun Seo
- Veterans Medical Research Institute, Veterans Health Service Medical Center, Seoul 05368, Korea
- Correspondence: ; Tel.: +82-2-2225-1445; Fax: +82-2-2225-3950
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Thomas C, Minty M, Vinel A, Canceill T, Loubières P, Burcelin R, Kaddech M, Blasco-Baque V, Laurencin-Dalicieux S. Oral Microbiota: A Major Player in the Diagnosis of Systemic Diseases. Diagnostics (Basel) 2021; 11:1376. [PMID: 34441309 PMCID: PMC8391932 DOI: 10.3390/diagnostics11081376] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 07/28/2021] [Accepted: 07/28/2021] [Indexed: 02/06/2023] Open
Abstract
The oral cavity is host to a complex and diverse microbiota community which plays an important role in health and disease. Major oral infections, i.e., caries and periodontal diseases, are both responsible for and induced by oral microbiota dysbiosis. This dysbiosis is known to have an impact on other chronic systemic diseases, whether triggering or aggravating them, making the oral microbiota a novel target in diagnosing, following, and treating systemic diseases. In this review, we summarize the major roles that oral microbiota can play in systemic disease development and aggravation and also how novel tools can help investigate this complex ecosystem. Finally, we describe new therapeutic approaches based on oral bacterial recolonization or host modulation therapies. Collaboration in diagnosis and treatment between oral specialists and general health specialists is of key importance in bridging oral and systemic health and disease and improving patients' wellbeing.
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Affiliation(s)
- Charlotte Thomas
- INSERM UMR 1297 Inserm, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Avenue Jean Poulhès 1, CEDEX 4, 31432 Toulouse, France; (A.V.); (P.L.); (R.B.); (V.B.-B.)
- Faculté de Chirurgie Dentaire, Université Paul Sabatier III (UPS), 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France; (T.C.); (M.K.); (S.L.-D.)
- Service d’Odontologie Rangueil, CHU de Toulouse, 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France
| | - Matthieu Minty
- INSERM UMR 1297 Inserm, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Avenue Jean Poulhès 1, CEDEX 4, 31432 Toulouse, France; (A.V.); (P.L.); (R.B.); (V.B.-B.)
- Faculté de Chirurgie Dentaire, Université Paul Sabatier III (UPS), 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France; (T.C.); (M.K.); (S.L.-D.)
- Service d’Odontologie Rangueil, CHU de Toulouse, 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France
| | - Alexia Vinel
- INSERM UMR 1297 Inserm, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Avenue Jean Poulhès 1, CEDEX 4, 31432 Toulouse, France; (A.V.); (P.L.); (R.B.); (V.B.-B.)
- Faculté de Chirurgie Dentaire, Université Paul Sabatier III (UPS), 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France; (T.C.); (M.K.); (S.L.-D.)
- Service d’Odontologie Rangueil, CHU de Toulouse, 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France
| | - Thibault Canceill
- Faculté de Chirurgie Dentaire, Université Paul Sabatier III (UPS), 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France; (T.C.); (M.K.); (S.L.-D.)
- Service d’Odontologie Rangueil, CHU de Toulouse, 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France
- UMR CNRS 5085, Centre Interuniversitaire de Recherche et d’Ingénierie des Matériaux (CIRIMAT), Université Paul Sabatier, 35 Chemin des Maraichers, CEDEX 9, 31062 Toulouse, France
| | - Pascale Loubières
- INSERM UMR 1297 Inserm, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Avenue Jean Poulhès 1, CEDEX 4, 31432 Toulouse, France; (A.V.); (P.L.); (R.B.); (V.B.-B.)
- Faculté de Chirurgie Dentaire, Université Paul Sabatier III (UPS), 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France; (T.C.); (M.K.); (S.L.-D.)
| | - Remy Burcelin
- INSERM UMR 1297 Inserm, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Avenue Jean Poulhès 1, CEDEX 4, 31432 Toulouse, France; (A.V.); (P.L.); (R.B.); (V.B.-B.)
- Faculté de Chirurgie Dentaire, Université Paul Sabatier III (UPS), 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France; (T.C.); (M.K.); (S.L.-D.)
| | - Myriam Kaddech
- Faculté de Chirurgie Dentaire, Université Paul Sabatier III (UPS), 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France; (T.C.); (M.K.); (S.L.-D.)
- Service d’Odontologie Rangueil, CHU de Toulouse, 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France
| | - Vincent Blasco-Baque
- INSERM UMR 1297 Inserm, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Avenue Jean Poulhès 1, CEDEX 4, 31432 Toulouse, France; (A.V.); (P.L.); (R.B.); (V.B.-B.)
- Faculté de Chirurgie Dentaire, Université Paul Sabatier III (UPS), 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France; (T.C.); (M.K.); (S.L.-D.)
- Service d’Odontologie Rangueil, CHU de Toulouse, 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France
| | - Sara Laurencin-Dalicieux
- Faculté de Chirurgie Dentaire, Université Paul Sabatier III (UPS), 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France; (T.C.); (M.K.); (S.L.-D.)
- Service d’Odontologie Rangueil, CHU de Toulouse, 3 Chemin des Maraîchers, CEDEX 9, 31062 Toulouse, France
- INSERM UMR 1295, Centre d’Epidémiologie et de Recherche en Santé des Populations de Toulouse (CERPOP), Epidémiologie et Analyse en Santé Publique, Risques, Maladies Chroniques et Handicaps, 37 Allées Jules Guesdes, 31000 Toulouse, France
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Yahaya TO, Yusuf AB, Danjuma JK, Usman BM, Ishiaku YM. Mechanistic links between vitamin deficiencies and diabetes mellitus: a review. EGYPTIAN JOURNAL OF BASIC AND APPLIED SCIENCES 2021. [DOI: 10.1080/2314808x.2021.1945395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Tajudeen O. Yahaya
- Department of Biology, Federal University Birnin Kebbi, Birnin Kebbi, Nigeria
| | - AbdulRahman B. Yusuf
- Department of Biochemistry and Molecular Biology, Federal University Birnin Kebbi, Birnin Kebbi, Nigeria
| | - Jamilu K. Danjuma
- Department of Biology, Federal University Birnin Kebbi, Birnin Kebbi Nigeria
| | - Bello M. Usman
- Department of Biology, Federal University Birnin Kebbi, Birnin Kebbi Nigeria
| | - Yahaya M. Ishiaku
- Department of Biochemistry and Molecular Biology, Federal University Dutsinma, Katsina, Nigeria
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Xu B, Fu J, Qiao Y, Cao J, Deehan EC, Li Z, Jin M, Wang X, Wang Y. Higher intake of microbiota-accessible carbohydrates and improved cardiometabolic risk factors: a meta-analysis and umbrella review of dietary management in patients with type 2 diabetes. Am J Clin Nutr 2021; 113:1515-1530. [PMID: 33693499 DOI: 10.1093/ajcn/nqaa435] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 12/17/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Microbiota-accessible carbohydrates (MACs) are critical substrates for intestinal microbes; the subsequent production of SCFAs may have some potential benefits for patients with type 2 diabetes mellitus (T2DM). OBJECTIVES We conducted a meta-analysis of randomized controlled trials (RCTs) to assess the effects of higher compared with lower MAC intakes on cardiovascular risk factors in T2DM patients and performed an umbrella review of RCTs to evaluate the evidence quality concerning existing dietary T2DM interventions. METHODS Publications were identified by searching MEDLINE, EMBASE, and CINAHL. In the meta-analysis, random-effects models were used to calculate pooled estimates, and sensitivity analyses, meta-regression, subgroup analyses, and Egger's test were performed. For the umbrella review, we summarized pooled estimates, 95% CIs, heterogeneity, and publication bias. The Grading of Recommendations Assessment, Development and Evaluation (GRADE) and modified NutriGrade were used to assess the quality of evidence in the meta-analysis and umbrella review, respectively. RESULTS Forty-five RCTs with 1995 participants were included in the meta-analysis. High MAC intake significantly reduced glycated hemoglobin (HbA1c) (weighted mean difference [WMD] -0.436% [-0.556, -0.315]), fasting glucose (WMD -0.835 mmol/L [-1.048, -0.622]), total cholesterol (WMD -0.293 mmol/L [-0.397, -0.190]), triglycerides (WMD -0.118 mmol/L [-0.308, -0.058]), BMI (WMD -0.476 [-0.641, -0.312]), and systolic blood pressure (WMD -3.066 mmHg [-5.653, -0.478]), with a moderate-to-high quality of evidence, compared with low intake. Region, dose, and MAC type were key variables. The umbrella review of all dietary interventions for cardiovascular risk factors in patients with T2DM included 26 meta-analyses with 158 pooled estimates. The evidence quality of MACs, dietary fiber, high-protein diet, ω-3 (n-3), viscous fiber, vitamin D, and vitamin E intake was moderate to high. CONCLUSIONS When compared with lower intake, increased MAC intake improved glycemic control, blood lipid, body weight, and inflammatory markers for people with T2DM. This trial was registered at PROSPERO (https://www.crd.york.ac.uk/PROSPERO/#recordDetails) as CRD42019120531.
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Affiliation(s)
- Bocheng Xu
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Jie Fu
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Yanxiang Qiao
- Institute of Metabolic Diseases, the 5th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, Guangdong, China
| | - Jinping Cao
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Edward C Deehan
- Department of Agricultural, Food & Nutritional Science, University of Alberta, Edmonton, Canada
| | - Zhi Li
- College of Life Sciences, Hebei Normal University, Shijiazhuang, China
| | - Mingliang Jin
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Xinxia Wang
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Yizhen Wang
- College of Animal Sciences, Zhejiang University, Hangzhou, China
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47
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The role of vitamin D deficiency and thyroid dysfunction on blood glucose regulation in patients with type 2 diabetes mellitus: A retrospective cohort study. JOURNAL OF SURGERY AND MEDICINE 2021. [DOI: 10.28982/josam.911291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Barale M, Rossetto Giaccherino R, Ghigo E, Procopio M. Effect of 1-year oral cholecalciferol on a metabolic profile and blood pressure in poor-controlled type 2 diabetes mellitus: an open-label randomized controlled pilot study. J Endocrinol Invest 2021; 44:791-802. [PMID: 32804345 DOI: 10.1007/s40618-020-01373-8] [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: 05/25/2020] [Accepted: 07/23/2020] [Indexed: 10/23/2022]
Abstract
PURPOSE Hypovitaminosis D has been associated with many cardio-metabolic disorders, although their pathogenetic link still remains unclear. Our aim was to evaluate whether 1-year vitamin D (D) supplementation could improve glycemic control, lipid profile, systolic (SBP) and diastolic (DBP) blood pressure levels and body composition. METHODS In an open-label randomized-controlled pilot study, thirty poor-controlled (HbA1c > 59 mmol/mol) type 2 diabetic patients (age 71.5 ± 3.2 years, M/F 21/9, BMI 29.8 ± 3.6 kg/m2) with hypovitaminosis D (25OHD 22.0 ± 11.3 nmol/l) were randomized to cholecalciferol supplementation (500 UI/kg p.o. weekly, + D) or observation (- D) for one year. Changes in parameters of glucose, lipid and blood pressure control at 3, 6, 9 and 12 months vs. baseline were assessed. RESULTS One-year D supplementation restored D status and had a beneficial effect on fasting glucose (FG, mean percentage changes ± SD, - 1.8% ± 23.1 vs. + 18.8% ± 30.0), glycosylated haemoglobin (HbA1c, - 13.7% ± 14.5 vs. - 4.2% ± 14.1), SBP (- 13.4% ± 8.5 vs. - 2.4% ± 12.6) and HDL-cholesterol levels (- 2.1% ± 14.0 vs. - 10.9% ± 12.9; p < 0.05 for all comparisons) in + D vs. - D patients, respectively. In the former, a reduction in HBA1c, SBP and DBP levels, BMI, fat mass index (FMI) and ratio (FMR) was observed after 1 year (p < 0.05 for all comparisons vs. baseline). We noticed a relationship between 1-year mean percentage changes of serum 25OHD and SBP levels (R = - 0.36, p < 0.05). CONCLUSION One-year cholecalciferol supplementation, able to restore D status, significantly improves FG, HbA1c, SBP and HDL-cholesterol levels in patients with poor-controlled type 2 diabetes mellitus and D deficiency.
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Affiliation(s)
- M Barale
- Department of General and Specialty Medicine, Division of Endocrinology, Diabetology and Metabolic Diseases, Molinette Hospital, University of Turin - Cso Dogliotti, 14-10126, Turin, Italy.
| | - R Rossetto Giaccherino
- Department of General and Specialty Medicine, Division of Endocrinology, Diabetology and Metabolic Diseases, Molinette Hospital, University of Turin - Cso Dogliotti, 14-10126, Turin, Italy
| | - E Ghigo
- Department of General and Specialty Medicine, Division of Endocrinology, Diabetology and Metabolic Diseases, Molinette Hospital, University of Turin - Cso Dogliotti, 14-10126, Turin, Italy
| | - M Procopio
- Department of General and Specialty Medicine, Division of Endocrinology, Diabetology and Metabolic Diseases, Molinette Hospital, University of Turin - Cso Dogliotti, 14-10126, Turin, Italy
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Zhao X, Huo L, Yu X, Zhang X. Association of Bone Metabolism Indices and Bone Mineral Density with Diabetic Retinopathy in Elderly Patients with Type 2 Diabetes Mellitus: A Cross-Sectional Inpatient Study in China. J Diabetes Res 2021; 2021:8853622. [PMID: 33506053 PMCID: PMC7815418 DOI: 10.1155/2021/8853622] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 12/28/2020] [Accepted: 01/04/2021] [Indexed: 01/24/2023] Open
Abstract
OBJECTIVE This study is aimed at analyzing the association between bone metabolism indices and diabetic retinopathy (DR) in elderly patients with type 2 diabetes mellitus. METHODS Data of 352 men and 284 postmenopausal women, aged more than 50 years, with type 2 diabetes mellitus were retrospectively analyzed. Patients were divided into three groups based on the degree of DR: nondiabetic retinopathy (NDR) group, background diabetic retinopathy (BDR) group, and proliferative diabetic retinopathy (PDR) group. RESULTS (1) The diabetic duration and urinary albumin to creatinine ratio (UACR) were significantly higher in the PDR and BDR groups than in the NDR group (P < 0.05). The level of beta-C-terminal telopeptide (β-CTX) in male patients was lower in the PDR and BDR groups than in the NDR group (P < 0.05). In addition, the level of procollagen 1 intact N-terminal (P1NP) in female patients was higher in the PDR and BDR groups than in the NDR group (P < 0.05). (2) For men and postmenopausal women, the proportion of vitamin deficiency was higher in the PDR and BDR groups than in the NDR group (P < 0.05). (3) The logistic regression analysis in men and postmenopausal women showed that the diabetic duration and lower levels of UACR and 25(OH)D were independent risk factors for DR (P < 0.05). (4) The diabetic duration was also an independent risk factor for PDR (P < 0.05); however, no independent correlation was found between the level of 25(OH)D and PDR (P > 0.05). CONCLUSIONS A close association was observed between 25(OH)D level and DR in the elderly male patients and postmenopausal women with type 2 diabetes mellitus. P1NP and β-CTX levels might be closely related to DR in elderly male patients and postmenopausal women with type 2 diabetes mellitus.
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Affiliation(s)
- Xin Zhao
- Endocrinology Department, Peking University International Hospital, Beijing, China
| | - Lili Huo
- Endocrinology Department, Beijing Jishuitan Hospital, Beijing, China
| | - Xiaofeng Yu
- Endocrinology Department, Peking University International Hospital, Beijing, China
| | - Xiaomei Zhang
- Endocrinology Department, Peking University International Hospital, Beijing, China
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50
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Barrea L, Frias-Toral E, Pugliese G, Garcia-Velasquez E, DE Los Angeles Carignano M, Savastano S, Colao A, Muscogiuri G. Vitamin D in obesity and obesity-related diseases: an overview. Minerva Endocrinol (Torino) 2020; 46:177-192. [PMID: 33213116 DOI: 10.23736/s2724-6507.20.03299-x] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Hypovitaminosis D and obesity represent two pandemic conditions sometimes associated with each other. Although it is known that there is a close relationship between these two health problems, the underlying pathophysiological mechanism has not yet been fully clarified. In fact, on the one hand, obesity per se seems to involve low circulating levels of vitamin D due to low sun exposure, physical activity, and intake of foods rich in vitamin D, volumetric dilution and sequestration in the adipose tissue. Conversely, since preadipocytes and adipocytes express the receptors and are involved in the metabolism of vitamin D it would seem that low levels of this vitamin may be involved in adipogenesis and therefore in the development of obesity. This connection is extremely important when considering obesity-related diseases. In fact, low vitamin D levels and severe obesity are significantly associated with some cardio-metabolic risk factors, including high Body Mass Index, waist circumference, blood pressure, impaired lipid and glycemic profile and insulin resistance, as they would seem associated with worse cardiovascular outcomes and higher cancer incidence and mortality. Therefore, the purpose of this review was to examine the recent evidence linking low vitamin D status, obesity and obesity-related diseases, highlighting the scientific achievements and the gaps to be filled with further investigations.
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Affiliation(s)
- Luigi Barrea
- Unit of Endocrinology, Department of Clinical Medicine and Surgery, Collaborating Centers for Obesity Management (COM) of The European Association for the Study of Obesity (EASO), Federico II University Medical School of Naples, Naples, Italy - .,Unit of Endocrinology, Department of Clinical Medicine and Surgery, Centro Italiano per la Cura e il Benessere del Paziente con Obesità (C.I.B.O), University Medical School of Naples, Naples, Italy -
| | - Evelyn Frias-Toral
- SOLCA Hospital, Guayaquil, Ecuador.,Santiago de Guayaquil Catholic University, Guayaquil, Ecuador
| | - Gabriella Pugliese
- Unit of Endocrinology, Department of Clinical Medicine and Surgery, Collaborating Centers for Obesity Management (COM) of The European Association for the Study of Obesity (EASO), Federico II University Medical School of Naples, Naples, Italy.,Unit of Endocrinology, Department of Clinical Medicine and Surgery, Centro Italiano per la Cura e il Benessere del Paziente con Obesità (C.I.B.O), University Medical School of Naples, Naples, Italy
| | | | | | - Silvia Savastano
- Unit of Endocrinology, Department of Clinical Medicine and Surgery, Collaborating Centers for Obesity Management (COM) of The European Association for the Study of Obesity (EASO), Federico II University Medical School of Naples, Naples, Italy.,Unit of Endocrinology, Department of Clinical Medicine and Surgery, Centro Italiano per la Cura e il Benessere del Paziente con Obesità (C.I.B.O), University Medical School of Naples, Naples, Italy
| | - Annamaria Colao
- Unit of Endocrinology, Department of Clinical Medicine and Surgery, Collaborating Centers for Obesity Management (COM) of The European Association for the Study of Obesity (EASO), Federico II University Medical School of Naples, Naples, Italy.,Unit of Endocrinology, Department of Clinical Medicine and Surgery, Centro Italiano per la Cura e il Benessere del Paziente con Obesità (C.I.B.O), University Medical School of Naples, Naples, Italy.,Federico II University, Naples, Italy
| | - Giovanna Muscogiuri
- Unit of Endocrinology, Department of Clinical Medicine and Surgery, Collaborating Centers for Obesity Management (COM) of The European Association for the Study of Obesity (EASO), Federico II University Medical School of Naples, Naples, Italy.,Unit of Endocrinology, Department of Clinical Medicine and Surgery, Centro Italiano per la Cura e il Benessere del Paziente con Obesità (C.I.B.O), University Medical School of Naples, Naples, Italy
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