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Cristelo C, Sá AF, Lúcio M, Sarmento B, Gama FM. Vitamin D loaded into lipid nanoparticles shows insulinotropic effect in INS-1E cells. Eur J Pharm Sci 2024; 196:106758. [PMID: 38570054 DOI: 10.1016/j.ejps.2024.106758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 03/15/2024] [Accepted: 03/30/2024] [Indexed: 04/05/2024]
Abstract
Increasing evidence suggests a beneficial role of vitamin D (VitD) supplementation in addressing the widespread VitD deficiency, but currently used VitD3 formulations present low bioavailability and toxicity constrains. Hence, poly(L-lactide-co-glycolide) (PLGA) nanoparticles (NPs), solid-lipid nanoparticles (SLNs) and nanostructured lipid carriers (NLCs) were investigated to circumvent these issues. PLGA NPs prepared by emulsification or nanoprecipitation presented 74 or 200 nm, and association efficiency (AE) of 68 % and 17 %, respectively, and a rapid burst release of VitD3. Both SLN and NLCs presented higher polydispersity and larger NPs size, around 500 nm, which could be reduced to around 200 nm by use of hot high-pressure homogenization in the case of NLCs. VitD3 was efficiently loaded in both SLNs and NLCs with an AE of 82 and 99 %, respectively. While SLNs showed burst release, NLCs allowed a sustained release of VitD3 for nearly one month. Furthermore, NLCs showed high stability with maintenance of VitD3 loading for up to one month at 4 °C and no cytotoxic effects on INS-1E cells up to 72 h. A trending increase (around 30 %) on glucose-dependent insulin secretion was observed by INS-1E cells pre-treated with VitD3. This effect was consistently observed in the free form and after loading on NLCs. Overall, this work contributed to further elucidation on a suitable delivery system for VitD3 and on the effects of this metabolite on β cell function.
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Affiliation(s)
- Cecília Cristelo
- i3S, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; Centro de Engenharia Biológica, Universidade do Minho, Campus de Gualtar, Braga, Portugal; ICBAS, Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Ana Filipa Sá
- Centro de Engenharia Biológica, Universidade do Minho, Campus de Gualtar, Braga, Portugal
| | - Marlene Lúcio
- CF-UM-UP, Centro de Física das Universidades do Minho e Porto, Universidade do Minho, Campus de Gualtar, Braga, Portugal; CBMA, Centro de Biologia Molecular e Ambiental, Universidade do Minho, Campus de Gualtar, Braga, Portugal
| | - Bruno Sarmento
- i3S, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; IUCS-CESPU, Instituto Universitário de Ciências da Saúde, Gandra, Portugal
| | - Francisco Miguel Gama
- Centro de Engenharia Biológica, Universidade do Minho, Campus de Gualtar, Braga, Portugal.
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Schavinski AZ, Reis NG, Morgan HJN, Assis AP, Moro ML, Valentim RR, Seni-Silva AC, Ramos ES, Kettelhut IC, Navegantes LCC. Maternal Vitamin D Deficiency Impairs the Development of β Cells in Offspring Rats in a Sex-Dependent Manner. Int J Mol Sci 2024; 25:4136. [PMID: 38673723 PMCID: PMC11050228 DOI: 10.3390/ijms25084136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/03/2024] [Accepted: 04/04/2024] [Indexed: 04/28/2024] Open
Abstract
Recent studies have shown that maternal vitamin D deficiency (VDD) causes long-term metabolic changes in offspring. However, little is known about the impact of maternal VDD on offspring endocrine pancreas development and insulin secretion in the adult life of male and female animals. Female rats (Wistar Hannover) were fed either control (1000 IU Vitamin D3/kg), VDD (0 IU Vitamin D3/kg), or a Ca2+-enriched VDD diet (0 IU Vitamin D3/kg + Ca2+ and P/kg) for 6 weeks and during gestation and lactation. At weaning, VDD status was confirmed based on low serum calcidiol levels in dams and pups. Next, male and female offspring were randomly separated and fed a standard diet for up to 90 days. At this age, serum calcidiol levels were restored to normal levels in all groups, but serum insulin levels were decreased in VDD males without affecting glucagon levels, glycemia, or glucose tolerance. Islets isolated from VDD males showed lower insulin secretion in response to different glucose concentrations, but this effect was not observed in VDD females. Furthermore, VDD males, but not females, showed a smaller total pancreatic islet area and lower β cell mass, an effect that was accompanied by reduced gene expression of Ins1, Ins2, Pdx1, and SLC2A2. The decrease in Pdx1 expression was not related to the methylation profile of the promoter region of this gene. Most of these effects were observed in the male VDD+Ca2+ group, indicating that the effects were not due to alterations in Ca2+ metabolism. These data show that maternal VDD selectively impairs the morphology and function of β cells in adult male offspring rats and that female offspring are fully protected from these deleterious effects.
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Affiliation(s)
- Aline Z. Schavinski
- Department of Physiology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, SP, Brazil; (A.Z.S.); (N.G.R.); (H.J.N.M.); (M.L.M.); (R.R.V.)
| | - Natany G. Reis
- Department of Physiology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, SP, Brazil; (A.Z.S.); (N.G.R.); (H.J.N.M.); (M.L.M.); (R.R.V.)
| | - Henrique J. N. Morgan
- Department of Physiology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, SP, Brazil; (A.Z.S.); (N.G.R.); (H.J.N.M.); (M.L.M.); (R.R.V.)
| | - Ana Paula Assis
- Department of Biochemistry/Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, SP, Brazil; (A.P.A.); (I.C.K.)
| | - Matheus L. Moro
- Department of Physiology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, SP, Brazil; (A.Z.S.); (N.G.R.); (H.J.N.M.); (M.L.M.); (R.R.V.)
| | - Rafael R. Valentim
- Department of Physiology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, SP, Brazil; (A.Z.S.); (N.G.R.); (H.J.N.M.); (M.L.M.); (R.R.V.)
| | - Ana Carolina Seni-Silva
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, SP, Brazil; (A.C.S.-S.); (E.S.R.)
| | - Ester S. Ramos
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, SP, Brazil; (A.C.S.-S.); (E.S.R.)
| | - Isis C. Kettelhut
- Department of Biochemistry/Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, SP, Brazil; (A.P.A.); (I.C.K.)
| | - Luiz C. C. Navegantes
- Department of Physiology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, SP, Brazil; (A.Z.S.); (N.G.R.); (H.J.N.M.); (M.L.M.); (R.R.V.)
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de Luis D, Izaola O, Primo D, López Gómez JJ, Pacheco D. Role of rs2282679 in 25-hydroxyvitamin D levels and insulin resistance after a sleeve gastrectomy. Nutr Diabetes 2024; 14:12. [PMID: 38570479 PMCID: PMC10991311 DOI: 10.1038/s41387-024-00272-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 03/25/2024] [Accepted: 03/27/2024] [Indexed: 04/05/2024] Open
Abstract
BACKGROUND & AIMS Some studies have reported links between 25-hydroxyvitamin D levels and the presence of obesity and some genetic variants. The aim of our design was to evaluate the effects of rs2282679 genetic variant of CG gene on 25-hydroxyvitamin D levels, weight loss and metabolic parameters after a robotic sleeve gastrectomy in premenopausal females with obesity. METHODS 76 participants were enrolled. 25-hydroxyvitamin D levels, biochemical evaluation and anthropometric parameters were registered before surgery and after 3, 6 and 12 months follow up. Genotype of rs2282679 CG gene was evaluated. RESULTS The improvements in anthropometric parameters, blood pressure and lipid profile were similar in both genotypes (TT vs TG + GG). Basal insulin levels and HOMA-IR were greater in G allele carriers than non-carriers (Delta: 6.7 ± 1.2 mUI/L; p = 0.01) and (Delta: 1.3 ± 0.1 units; p = 0.02). 25-hydroxyvitamin D levels were lower in G allele carriers than non-carriers (Delta: 8.1 ± 1.1 ng/dl; p = 0.03). The levels of insulin and HOMA-IR remained greater in G allele carriers than non-carriers throughout all the visits. The levels of 25-hydroxyvitamin D remained lower in G allele carriers than non-G allele. The average level of 25-hydroxyvitamin D at 12 months in non-G allele carriers were above 30 ng/dl (36.0 ± 3.1 ng/dl) and the level in G allele carriers were below (24.9 ± 4.9 ng/dl). CONCLUSIONS rs 2282679 (GC) was related with low 25 hydroxyvitamin D levels and insulin resistance. In addition, the presence of G allele produced a decrease in the improvement of 25-hydroxyvitamin D levels and insulin resistance after weight loss during 12 months.
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Affiliation(s)
- Daniel de Luis
- Endocrinology and Nutrition Research Center, School of Medicine, Valladolid, Spain.
- Department of Endocrinology and Nutrition, Hospital Clinico Universitario, University of Valladolid, Valladolid, Spain.
| | - Olatz Izaola
- Endocrinology and Nutrition Research Center, School of Medicine, Valladolid, Spain
- Department of Endocrinology and Nutrition, Hospital Clinico Universitario, University of Valladolid, Valladolid, Spain
| | - David Primo
- Endocrinology and Nutrition Research Center, School of Medicine, Valladolid, Spain
- Department of Endocrinology and Nutrition, Hospital Clinico Universitario, University of Valladolid, Valladolid, Spain
| | - Juan José López Gómez
- Endocrinology and Nutrition Research Center, School of Medicine, Valladolid, Spain
- Department of Endocrinology and Nutrition, Hospital Clinico Universitario, University of Valladolid, Valladolid, Spain
| | - David Pacheco
- Endocrinology and Nutrition Research Center, School of Medicine, Valladolid, Spain
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Sivapiromrat AK, Hunt WR, Alvarez JA, Ziegler TR, Tangpricha V. Vitamin D for glycemic control following an acute pulmonary exacerbation: A secondary analysis of a multicenter, double-blind, randomized, placebo-controlled trial in adults with cystic fibrosis. medRxiv 2024:2024.01.04.24300862. [PMID: 38343807 PMCID: PMC10854353 DOI: 10.1101/2024.01.04.24300862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
Individuals with cystic fibrosis (CF) often incur damage to pancreatic tissue due to a dysfunctional cystic fibrosis transmembrane conductance regulator (CFTR) protein, leading to altered chloride transport on epithelial surfaces and subsequent development of cystic fibrosis-related diabetes (CFRD). Vitamin D deficiency has been associated with the development of CFRD. This was a secondary analysis of a multicenter, double-blind, randomized, placebo-controlled study in adults with CF hospitalized for an acute pulmonary exacerbation (APE), known as the Vitamin D for the Immune System in Cystic Fibrosis (DISC) trial (NCT01426256). This was a pre-planned secondary analysis to examine if a high-dose bolus of cholecalciferol (vitamin D3) can mitigate declined glucose tolerance commonly associated with an acute pulmonary exacerbation (APE). Glycemic control was assessed by hemoglobin A1c (HbA1c) and fasting blood glucose levels before and 12 months after the study intervention. Within 72 hours of hospital admission, participants were randomly assigned to a single dose of oral vitamin D3 (250,000 IU) or placebo, and subsequently, received 50,000 IU of vitamin D3 or placebo every other week, beginning at month 3 and ending on month 12. Forty-nine of the 91 participants in the parent study were eligible for the secondary analysis. There were no differences in 12-month changes in HbA1c or fasting blood glucose in participants randomized to vitamin D or placebo. A high-dose bolus of vitamin D3 followed by maintenance vitamin D3 supplementation did not improve glycemic control in patients with CF after an APE.
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Affiliation(s)
- Alisa K. Sivapiromrat
- Division of Endocrinology, Metabolism and Lipids, Department of Medicine, Emory University School of Medicine, Atlanta, GA, USA
| | - William R. Hunt
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, Emory University School of Medicine, Atlanta, GA, USA
| | - Jessica A. Alvarez
- Division of Endocrinology, Metabolism and Lipids, Department of Medicine, Emory University School of Medicine, Atlanta, GA, USA
| | - Thomas R. Ziegler
- Division of Endocrinology, Metabolism and Lipids, Department of Medicine, Emory University School of Medicine, Atlanta, GA, USA
- Atlanta VA Medical Center, Decatur, GA, USA
| | - Vin Tangpricha
- Division of Endocrinology, Metabolism and Lipids, Department of Medicine, Emory University School of Medicine, Atlanta, GA, USA
- Atlanta VA Medical Center, Decatur, GA, USA
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de Luis Román D, Izaola O, Primo Martín D, Gómez Hoyos E, Torres B, López JJ. Association between the genetic variant in the vitamin D pathway (rs2282679), circulating 25-hydroxyvitamin D levels, insulin resistance and metabolic syndrome criteria. NUTR HOSP 2023; 40:1176-1182. [PMID: 37929856 DOI: 10.20960/nh.04041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2023] Open
Abstract
Introduction Background and aims: some studies have reported links between 25-hydroxyvitamin D levels and the presence of metabolic syndrome. The aim of the present study was to evaluate whether an association exists among 25-hydroxyvitamin D, rs2282679 of the GC gene and metabolic syndrome (MS). Methods: the study involved a population of 134 postmenopausal obese females. Measurements of anthropometric parameters, blood pressure, bone turnover markers, fasting blood glucose, insulin resistance (HOMA-IR), lipid profile, C-reactive protein and prevalence of MS were recorded. Genotype of CG gene polymorphism (rs2282679) was evaluated. Results: insulin (delta: 4.6 ± 0.9 mUI/l; p = 0.02), triglycerides (delta: 21.6 ± 2.9 mg/dl; p = 0.04) and HOMA-IR (delta: 1.1 ± 0.9 unit; p = 0.02) were lower in TT subjects than TG + GG patients. The percentages of individuals who had MS (OR = 2.80, 95 % CI = 1.39-5.65; p = 0.02), hypertriglyceridemia (OR = 2.39, 95 % CI = 1.44-5.96; p = 0.01), and hyperglycemia (OR = 2.72, 95 % CI = 1.23-6.00; p = 0.43) were higher in G allele carriers. Logistic regression analysis showed an increased risk of MS in G allele carriers (OR = 2.36, 95 % CI = 1.11-5.91, p = 0.02) and an increased risk of 25-hydroxyvitamin D deficiency (< 20 ng/ml) (OR = 2.43, 95 % CI = 1.13-6.69, p = 0.02), too. Conclusions: a negative association among G allele and insulin resistance, hypertriglyceridemia, deficiency of 25 hydroxyvitamin D levels and MS was reported in this population.
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Affiliation(s)
- Daniel de Luis Román
- Centro de Investigación de Endocrinología y Nutrición Clínica de Valladolid (IENVA). Facultad de Medicina. Universidad de Valladolid
| | - Olatz Izaola
- Centro de Investigación de Endocrinología y Nutrición Clínica de Valladolid (IENVA). Facultad de Medicina. Universidad de Valladolid
| | - David Primo Martín
- Centro de Investigación de Endocrinología y Nutrición Clínica de Valladolid (IENVA). Facultad de Medicina. Universidad de Valladolid
| | - Emilia Gómez Hoyos
- Centro de Investigación de Endocrinología y Nutrición Clínica de Valladolid (IENVA). Facultad de Medicina. Universidad de Valladolid
| | - Beatriz Torres
- Centro de Investigación de Endocrinología y Nutrición Clínica de Valladolid (IENVA). Facultad de Medicina. Universidad de Valladolid
| | - Juan José López
- Centro de Investigación de Endocrinología y Nutrición Clínica de Valladolid (IENVA). Facultad de Medicina. Universidad de Valladolid
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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: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [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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Lee D, Kim S, Koo Y, Chae Y, Wang J, Kim S, Yun T, Yang MP, Kang BT, Kim H. Expression of vitamin D receptor, CYP24A1, and CYP27B1 in normal and inflamed canine pancreases. Front Vet Sci 2023; 10:1265203. [PMID: 37808100 PMCID: PMC10551448 DOI: 10.3389/fvets.2023.1265203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 09/05/2023] [Indexed: 10/10/2023] Open
Abstract
Vitamin D plays a role in anti-inflammatory processes, and the alteration of its metabolism is associated with the inflammatory processes of pancreatitis. This study was performed to evaluate the expression of the vitamin D receptor (VDR) and the two major enzymes that regulate vitamin D metabolism, 1α-hydroxylase (CYP27B1) and 24-hydroxylase (CYP24A1), in the canine pancreas and to compare their degrees of immunoreactivity between normal and inflamed pancreases. Five normal and inflamed pancreatic tissues each were obtained from six dogs. The expression of VDR, CYP24A1, and CYP27B1 were determined immunohistochemically, and the degree of immunostaining was assessed semiquantitatively. The VDR was expressed in the ducts, acini, and islets of Langerhans of normal pancreases and in the ducts and acini of inflamed ones. There was a significant difference in the immunoreactivity score for VDR in the islets of Langerhans between normal (median, 3 [interquartile range, 2-7.5] score) and inflamed pancreatic tissues (0 [0-0.5] score, p = 0.03). CYP24A1 was expressed in the ducts and islets of Langerhans in both normal and inflamed pancreases, whereas CYP27B1 was expressed in the ducts and acini in only some normal and inflamed pancreatic tissues. This study showed that VDR expression decreased in inflamed pancreases and demonstrated CYP24A1 and CYP27B1 expression in the canine pancreas for the first time. These findings indicate that the pancreas could regulate the metabolism and biological activity of vitamin D and suggest that a decrease in these might be related to the pathophysiology of pancreatitis.
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Affiliation(s)
- Dohee Lee
- Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Sanggu Kim
- Laboratory of Veterinary Pathology and Platelet Signaling, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Yoonhoi Koo
- Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Yeon Chae
- Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Juwon Wang
- Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Soochong Kim
- Laboratory of Veterinary Pathology and Platelet Signaling, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Taesik Yun
- Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Mhan-Pyo Yang
- Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Byeong-Teck Kang
- Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Hakhyun Kim
- Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
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Majeed M, Siddiqui M, Lessan N. Vitamin D deficiency increases with age and adiposity in Emirati children and adolescents irrespective of type 1 diabetes mellitus: a case control study. BMC Endocr Disord 2023; 23:150. [PMID: 37452421 PMCID: PMC10347721 DOI: 10.1186/s12902-023-01405-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 07/06/2023] [Indexed: 07/18/2023] Open
Abstract
BACKGROUND Association of vitamin D (25(OH)D) deficiency with obesity and diabetes has been well-established in paediatric and adult populations. This study aims to report the association of 25(OH)D deficiency with body composition and prevalence of 25(OH)D deficiency in Emirati children and adolescents, who attended a diabetes centre in the United Arab Emirates. METHODS Using Abu Dhabi Diabetes and Obesity Study cohort, type 1 diabetes (T1D) and normoglycaemic (NG) participants between 4-19 years of age were selected. WHO criteria were used to define 25(OH)D cut-offs: deficient (< 30 nmol/L), insufficient (30-50 nmol/L) and sufficient (> 50 nmol/L). Based on CDC recommendations, BMI percentile was categorised as underweight, normal weight, overweight and obesity. RESULTS After age and sex matching, 148 T1D cases and 296 NG controls were identified. 25(OH)D deficiency was observed in 22.3% (n = 33) T1D and 40.5% (n = 120) NG participants. 25(OH)D levels were lower in adolescents (15 - 19 years) than children (4 - 7 years) in both T1D and NG groups (p = 0.018 vs p < 0.001). Females were more likely to be 25(OH)D deficient in both groups. Children and adolescents with BMI ≥ 95th percentile were more likely to be 25(OH)D deficient than those with normal weight (OR: 2.69; 95% CI: 1.56, 4.64). Adiposity measures and 25(OH)D levels correlated negatively in both groups (T1D p < 0.01, NG p < 0.001). CONCLUSION Vitamin D 25(OH)D deficiency is notably prevalent in Emirati children and adolescents despite adequate sunlight throughout the year. The prevalence was lower in those with T1D which may be indicative of treatment compliance in this population. This study also confirms important negative association of serum 25(OH)D levels with body mass and obesity in this population.
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Affiliation(s)
- Maria Majeed
- Imperial College London Diabetes Centre, Khaleej Al Arabi Street, PO Box 48338, Abu Dhabi, UAE
| | - Mohsin Siddiqui
- Imperial College London Diabetes Centre, Khaleej Al Arabi Street, PO Box 48338, Abu Dhabi, UAE
| | - Nader Lessan
- Imperial College London Diabetes Centre, Khaleej Al Arabi Street, PO Box 48338, Abu Dhabi, UAE.
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Ma S, Yin W, Wang P, Wang H, Zhang L, Tao R, Hu H, Jiang X, Zhang Y, Tao F, Zhu P. Effect of vitamin D supplementation on glucose control in mid-late gestation: A randomized controlled trial. Clin Nutr 2023; 42:929-936. [PMID: 37087832 DOI: 10.1016/j.clnu.2023.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 04/07/2023] [Accepted: 04/11/2023] [Indexed: 04/25/2023]
Abstract
BACKGROUND & AIMS It is unclear whether vitamin D supplementation contributes to gestational glucose control and whether the specific effects vary in individuals with diverse genetic and metabolic contexts. The study aimed to assess the effect of vitamin D supplementation during pregnancy on subsequent glucose levels and to identify factors modulating the response to vitamin D3 intake. METHODS We conducted a multicenter randomized controlled trial, 1720 pregnant women recruited from the three antenatal clinics of Hefei city, China, who were allocated to receive either 1600 IU/d vitamin D3 (n = 858) or 400 IU/d vitamin D3 (n = 862) for 2 months at 24-28 weeks' gestation. Outcomes were changes in serum 25-hydroxyvitamin D (25(OH)D) and fasting plasma glucose (FPG) levels from baseline, 32-36 weeks' gestation to delivery (37-41 weeks) quantified using a linear mixed model. RESULTS After 2 months, FPG levels of the control group significantly increased by 0.22 mmol/L (from 4.6 [0.4] mmol/L to 4.8 [1.2] mmol/L, P < 0.001) at delivery, but that of the intervention group had no significant variation (from 4.6 [0.4] mmol/L to 4.7 [1.1] mmol/L; between-group difference in changes, -0.2 mmol/L, 95% CI, -0.3 to -0.08, P = 0.015). And differences in FPG variation were found in participants with the ApaI SNP CC genotype, or BsmI-CC, TaqI-AA, FokI-AA, respectively. Pregnant women with basal 25(OH)D concentrations higher than 50 nmol/L subgroup showed the greatest decline in FPG levels (between-group difference, -0.3 mmol/L; 95% CI, -0.5 to -0.1, P < 0.001). Moreover, pregnant women with GDM, multiple pregnancies or who were overweight were more likely to have FPG decline from vitamin D treatment. CONCLUSIONS Vitamin D supplementation significantly protected glucose homeostasis in mid-late gestation, and glycemic response to vitamin D may be dependent on basal 25(OH)D status, VDR gene polymorphism or their metabolic profiles. TRIAL REGISTRATION NUMBER ChiCTR2100051914. URL OF REGISTRATION: http://www.chictr.org.cn/showproj.aspx?proj=134700.
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Affiliation(s)
- Shuangshuang Ma
- Department of Maternal, Child & Adolescent Health, School of Public Health, Anhui Medical University, No 81 Mei-Shan Road, Hefei, Anhui, 230032, China
| | - Wanjun Yin
- Department of Maternal, Child & Adolescent Health, School of Public Health, Anhui Medical University, No 81 Mei-Shan Road, Hefei, Anhui, 230032, China; MOE Key Laboratory of Population Health Across Life Cycle, Anhui Medical University, No 81 Mei-Shan Road, Hefei, Anhui, 230032, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, No 81 Mei-Shan Road, Hefei, Anhui, 230032, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, No 81 Mei-Shan Road, Hefei, Anhui, 230032, China
| | - Peng Wang
- Department of Maternal, Child & Adolescent Health, School of Public Health, Anhui Medical University, No 81 Mei-Shan Road, Hefei, Anhui, 230032, China; MOE Key Laboratory of Population Health Across Life Cycle, Anhui Medical University, No 81 Mei-Shan Road, Hefei, Anhui, 230032, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, No 81 Mei-Shan Road, Hefei, Anhui, 230032, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, No 81 Mei-Shan Road, Hefei, Anhui, 230032, China
| | - Haixia Wang
- Department of Maternal, Child & Adolescent Health, School of Public Health, Anhui Medical University, No 81 Mei-Shan Road, Hefei, Anhui, 230032, China; MOE Key Laboratory of Population Health Across Life Cycle, Anhui Medical University, No 81 Mei-Shan Road, Hefei, Anhui, 230032, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, No 81 Mei-Shan Road, Hefei, Anhui, 230032, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, No 81 Mei-Shan Road, Hefei, Anhui, 230032, China
| | - Lei Zhang
- Department of Maternal, Child & Adolescent Health, School of Public Health, Anhui Medical University, No 81 Mei-Shan Road, Hefei, Anhui, 230032, China; MOE Key Laboratory of Population Health Across Life Cycle, Anhui Medical University, No 81 Mei-Shan Road, Hefei, Anhui, 230032, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, No 81 Mei-Shan Road, Hefei, Anhui, 230032, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, No 81 Mei-Shan Road, Hefei, Anhui, 230032, China
| | - Ruixue Tao
- Department of Obstetrics and Gynecology, Hefei First People's Hospital, No 390 Huai-he Road, Hefei, 230031, Anhui, China
| | - Honglin Hu
- Department of Endocrinology, First Affiliated Hospital of Anhui Medical University, No 218 Ji-xi Road, Hefei, 230022, Anhui, China
| | - Xiaomin Jiang
- Department of Obstetrics and Gynecology, Anhui Women and Child Health Care Hospital, No 15 Yi-min Street, Hefei, 230001, Anhui, China
| | - Ying Zhang
- Department of Obstetrics and Gynecology, First Affiliated Hospital of Anhui Medical University, No 218 Ji-xi Road, Hefei, 230022, Anhui, China
| | - Fangbiao Tao
- Department of Maternal, Child & Adolescent Health, School of Public Health, Anhui Medical University, No 81 Mei-Shan Road, Hefei, Anhui, 230032, China; MOE Key Laboratory of Population Health Across Life Cycle, Anhui Medical University, No 81 Mei-Shan Road, Hefei, Anhui, 230032, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, No 81 Mei-Shan Road, Hefei, Anhui, 230032, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, No 81 Mei-Shan Road, Hefei, Anhui, 230032, China
| | - Peng Zhu
- Department of Maternal, Child & Adolescent Health, School of Public Health, Anhui Medical University, No 81 Mei-Shan Road, Hefei, Anhui, 230032, China; MOE Key Laboratory of Population Health Across Life Cycle, Anhui Medical University, No 81 Mei-Shan Road, Hefei, Anhui, 230032, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, No 81 Mei-Shan Road, Hefei, Anhui, 230032, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Anhui Medical University, No 81 Mei-Shan Road, Hefei, Anhui, 230032, China.
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10
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Mandal SK, Tare M, Deepa PR. COVID-19 infection and metabolic comorbidities: Mitigating role of nutritional sufficiency and drug - nutraceutical combinations of vitamin D. Hum Nutr Metab 2023; 31:200179. [PMID: 38620788 PMCID: PMC9762046 DOI: 10.1016/j.hnm.2022.200179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 12/12/2022] [Accepted: 12/14/2022] [Indexed: 12/24/2022]
Abstract
The vulnerability of human health is amplified in recent times with global increase in non-communicable diseases (due to lifestyle changes and environmental insults) and infectious diseases (caused by newer pathogens and drug-resistance strains). Clinical management of diseases is further complicated by disease severity caused by other comorbid factors. Drug-based therapy may not be the sole approach, particularly in scenarios like the COVID-19 pandemic, where there is no specific drug against SARS-CoV-2. Nutritional interventions are significant in armouring human populations in disease prevention, and as adjunctive therapy for disease alleviation. Amidst ongoing clinical trials to determine the efficacy of Vit. D against infections and associated complications, this review examines the pleiotropic benefits of nutritional adequacy of vitamin D (Vit. D) in combating viral infections (COVID-19), its severity and complications due to co-morbidities (obesity, diabetes, stroke and Kawasaki disease), based on research findings and clinical studies. Supplements of Vit. D in combination with other nutrients, and drugs, are suggested as promising preventive-health and adjunct-treatment strategies in the clinical management of viral infections with metabolic comorbidities.
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Affiliation(s)
- Sumit Kumar Mandal
- Department of Biological Sciences, Birla Institute of Technology and Science, Pilani, Pilani Campus, Rajasthan, India
| | - Meghana Tare
- Department of Biological Sciences, Birla Institute of Technology and Science, Pilani, Pilani Campus, Rajasthan, India
| | - P R Deepa
- Department of Biological Sciences, Birla Institute of Technology and Science, Pilani, Pilani Campus, Rajasthan, India
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Abstract
Vitamin D is a hormone involved in many physiological processes. Its active form, 1,25(OH)2D3, modulates serum calcium-phosphate homeostasis and skeletal homeostasis. A growing body of evidence has demonstrated the renoprotective effects of vitamin D. Vitamin D modulates endothelial function, is associated with podocyte preservation, regulates the renin-angiotensin-aldosterone system, and has anti-inflammatory effects. Diabetic kidney disease (DKD) is a leading cause of end-stage kidney disease worldwide. There are numerous studies supporting vitamin D as a renoprotector, potentially delaying the onset of DKD. This review summarizes the findings of current research on vitamin D and its role in DKD.
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Affiliation(s)
- Ho-Yin Huang
- Department of Pharmacy, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Ting-Wei Lin
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Zi-Xuan Hong
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Lee-Moay Lim
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Correspondence: ; Tel.: +886-7-3121101-7351; Fax: +886-7-3228721
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Alrefai AA, Elsalamony E, Fatani SH, Kasemy ZA, Fatani A, Mohamed Kamel HF, Aziz AUR. The Association between Vitamin D Hypovitaminosis and Cardiovascular Disease Risk in Saudi Diabetic Patients Type II. Biochem Res Int 2022; 2022:1-8. [PMID: 36193546 PMCID: PMC9525733 DOI: 10.1155/2022/6097864] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 08/14/2022] [Accepted: 09/05/2022] [Indexed: 11/17/2022] Open
Abstract
We evaluated the prevalence and association of Vitamin D deficiency with glycemic control and CVD risk in T2DM patients. Serum 25 (OH)D3, lipid profile, glucose panel, HbA1c, serum insulin, and HOMA-IR were assessed in 93 T2DM patients and 69 controls. 10 years and lifetime ASCVD risk scores were calculated. The levels of 25(OH)D3 were significantly low in T2DM patients compared to the control. T2DM patients with hypovitaminosis D displayed significantly increased FBG, insulin, and HOMA-IR compared to normovitaminosis. Their lifetime and 10-year ASCVD risk scores were significantly higher regardless of vitamin D deficiency levels (P=0.006; P=0.023) in comparison to patients with sufficient levels of vitamin D. Among patients, the lifetime and 10 years of ASCVD risk showed a significant negative correlation with serum 25(OH)D3 and HDLc (P=0.037; 0.018) (P=0.0001), respectively, and significant positive correlation with T2DM duration, serum insulin, and HOMA-IR (P=0.018; 0.0001) (P=0.002; 0.001) (P=0.005; 0.001), respectively. The 10-year ASCVD risk exhibited a significant positive correlation with FBG (P=0.003) and HbA1c (P=0.009). T2DM duration was a predictor of vitamin D deficiency among T2DM patients (β = 0.22; CI = 0.002–0.04). There is a considerable association between lifetime and 10 years of ASCVD risk with hypovitaminosis D in T2DM, regardless of the deficiency levels which could be predicted by the diabetes duration.
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13
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Khoshnaw M, Dizaye K. Beneficial effects of vitamin D in the management of untreated hyperlipidemia in diabetic patients in Erbil, Iraq. PHAR 2022. [DOI: 10.3897/pharmacia.69.e90908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Hyperlipidemia is highly prevalent among type 2 diabetes mellitus (T2DM) patients. As hyperlipidemia plays a major part in atherosclerosis development and progression, this occurrence is linked to a significantly raised risk of cardiovascular disease. This study aims to assess the effects of vitamin D supplementation on lipid parameters in T2DM patients with untreated hyperlipidemia. Thirty-five T2DM patients with hyperlipidemia and vitamin D deficiency were supplemented with vitamin D for three months. Serum 25-hydroxyvitamin D (25[OH]D), calcium, lipid parameters, atherogenic indices, glucose, and HbA1c were recorded before and after the intervention. After supplementation, there was a statistically significant reduction in VLDL-C and triglycerides. Triglycerides showed a significant negative correlation with 25(OH)D. Atherogenic indices and HDL-C also improved significantly. Vitamin D supplementation had beneficial effects on the lipid profile of T2DM patients with untreated hyperlipidemia and vitamin D deficiency. Thus, vitamin D could be a valuable adjuvant therapy for these patients.
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Hidalgo-Bravo A, Rivera-Paredez B, León-Reyes G, Patiño N, Castillejos-López M, Salmerón J, Velázquez-Cruz R. Unravelling the Contribution of the rs7041 and rs4588 Polymorphisms of the GC Gene and Serum VDBP Levels for Developing Metabolic Syndrome in the Mexican Population. Int J Mol Sci 2022; 23:ijms231810581. [PMID: 36142493 PMCID: PMC9503453 DOI: 10.3390/ijms231810581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 08/29/2022] [Accepted: 09/03/2022] [Indexed: 11/16/2022] Open
Abstract
Metabolic syndrome (MetS) is a multifactorial disorder integrated by a constellation of cardiovascular risk factors. The genetic and environmental determinants of MetS are not fully elucidated. This study investigated the association of two common single nucleotide polymorphisms (SNPs) on GC, rs7041 and rs4588, derived haplotypes, and serum vitamin D binding protein (VDBP) levels with the susceptibility to suffer MetS in Mexican adults. We included 1924 individuals; clinical and biochemical data were obtained through standard methods. Genotyping was performed through predesigned TaqMan assays. Logistic regression models were used to assess the associations of interest. Prevalence of MetS was 52.9% in the whole population, being more frequent in women. We observed that some association results differed between sexes. The GG genotype of the rs7041 was associated with increased odds of MetS in women. For the rs4588, the CA genotype had a protective effect against MetS in women. The haplotype GC2 was associated with reduced odds for MetS and some of its components in women. Our data suggest that VDBP serum levels were influenced by genotypes/haplotypes and this interplay seems to influence the risk of MetS. Our data provide reliable evidence regarding the association of GC polymorphisms with MetS risk in Mexican women.
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Affiliation(s)
- Alberto Hidalgo-Bravo
- Departamento de Genética, Instituto Nacional de Rehabilitación (INR), Mexico City 014389, Mexico
| | - Berenice Rivera-Paredez
- Centro de Investigación en Políticas, Población y Salud, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM), Mexico City 04510, Mexico
| | - Guadalupe León-Reyes
- Laboratorio de Genómica del Metabolismo Óseo, Instituto Nacional de Medicina Genómica (INMEGEN), Mexico City 14610, Mexico
| | - Nelly Patiño
- Instituto Nacional de Medicina Genómica (INMEGEN), Mexico City 14610, Mexico
| | - Manuel Castillejos-López
- Departamento de Epidemiología, Instituto Nacional de Enfermedades Respiratorias (INER), Mexico City 14080, Mexico
| | - Jorge Salmerón
- Centro de Investigación en Políticas, Población y Salud, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM), Mexico City 04510, Mexico
| | - Rafael Velázquez-Cruz
- Laboratorio de Genómica del Metabolismo Óseo, Instituto Nacional de Medicina Genómica (INMEGEN), Mexico City 14610, Mexico
- Correspondence: ; Tel.: +52-(55)-5350-1900; Fax: +52-(55)-5350-1999
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Rodrigues CZ, Cardoso MA, Maruyama JM, Neves PAR, Qi L, Lourenço BH. Vitamin D insufficiency, excessive weight gain, and insulin resistance during pregnancy. Nutr Metab Cardiovasc Dis 2022; 32:2121-2128. [PMID: 35843794 DOI: 10.1016/j.numecd.2022.05.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 04/28/2022] [Accepted: 05/16/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND AND AIMS Vitamin D insufficiency has been related to metabolic complications during pregnancy, including insulin resistance. There is evidence that excessive weight gain can negatively influence 25-hydroxyvitamin D (25(OH)D) concentrations. We aimed to investigate the association of vitamin D insufficiency during pregnancy (25(OH)D3 < 75 nmol/L in the second and third trimesters) with insulin resistance, and explore whether excessive gestational weight gain (GWG) could modify such relationship. METHODS AND RESULTS A prospective longitudinal analysis was conducted within the MINA-Brazil Study among 444 pregnant women enrolled in antenatal care and with complete data on 25(OH)D3, weight gain, insulin, and homeostatic model assessment of insulin resistance (HOMA-IR). Quantile and logistic regression models were conducted with adjustment for sociodemographic, obstetric, and lifestyle characteristics, as well as gestational age and seasonality at outcome assessment. Predicted probabilities for insulin resistance (HOMA-IR>2.71) were estimated according to excessive GWG. Persistent vitamin D insufficiency was associated with increasing insulin concentrations (p for trend = 0.04); pregnant women with vitamin D insufficiency in the second or third trimester had an odds ratio of 1.83 (95% confidence interval (95% CI) = 1.03, 3.27) for insulin resistance, with significant modification by GWG (p = 0.038). Among participants without excessive GWG, the predicted probability for insulin resistance was 0.345 (95% CI = 0.224, 0.467) for those with persistent vitamin D insufficiency, and 0.134 (95% CI = 0.046, 0.221) for those who were sufficient in vitamin D. Probabilities for insulin resistance did not vary according to vitamin D status among participants with excessive GWG. CONCLUSION Vitamin D insufficiency was associated with insulin resistance in the third trimester of pregnancy, dependent on excessive GWG.
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Affiliation(s)
- Caroline Z Rodrigues
- Public Health Nutrition Program, School of Public Health, University of São Paulo, Avenida Doutor Arnaldo 715, São Paulo, 01246-904, Brazil
| | - Marly A Cardoso
- Department of Nutrition, School of Public Health, University of São Paulo, Avenida Doutor Arnaldo 715, São Paulo, 01246-904, Brazil
| | - Jéssica M Maruyama
- Departamento de Medicina Preventiva, Faculdade de Medicina FMUSP, Universidade de São Paulo, Avenida Doutor Arnaldo 455, São Paulo, 01246-903, Brazil
| | - Paulo A R Neves
- Public Health Nutrition Program, School of Public Health, University of São Paulo, Avenida Doutor Arnaldo 715, São Paulo, 01246-904, Brazil; Postgraduate Program in Epidemiology, School of Medicine, Federal University of Pelotas, Rua Marechal Deodoro 1160, Pelotas, 96020-220, Brazil
| | - Lu Qi
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA, 70112, USA
| | - Bárbara H Lourenço
- Department of Nutrition, School of Public Health, University of São Paulo, Avenida Doutor Arnaldo 715, São Paulo, 01246-904, Brazil.
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Mendoza LC, Harreiter J, Desoye G, Simmons D, Adelantado JM, Kautzky-Willer A, Zawiejska A, Wender-Ozegowska E, Lapolla A, Dalfra MG, Bertolotto A, Devlieger R, Dunne F, Mathiesen ER, Damm P, Andersen LL, Jensen DM, Hill D, van Poppel MNM, Corcoy R. The Weak Relationship between Vitamin D Compounds and Glucose Homeostasis Measures in Pregnant Women with Obesity: An Exploratory Sub-Analysis of the DALI Study. Nutrients 2022; 14:nu14163256. [PMID: 36014761 PMCID: PMC9415540 DOI: 10.3390/nu14163256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/02/2022] [Accepted: 08/05/2022] [Indexed: 11/26/2022] Open
Abstract
Studies on the relationship between vitamin D (VitD) and glucose homeostasis usually consider either total VitD or 25OHD3 but not 25OHD2 and epimers. We aimed to evaluate the cross-sectional association of VitD compounds with glucose homeostasis measurements in pregnant women with overweight/obesity participating in the Vitamin D And Lifestyle Intervention for Gestational Diabetes Mellitus Prevention study. Methods: The analysis included 912 women. Inclusion criteria: <20 weeks gestation, body mass index ≥29 kg/m2 and information on exposure and outcome variables at baseline. Measurements: A 75 g OGTT at <20, 24−28 and 35−37 weeks gestation (except if previous diabetes diagnosis). Exposure variables: 25OHD2, 25OHD3 and C3-epimer. Outcome variables: fasting and post-challenge insulin sensitivity and secretion indices, corresponding disposition indices (DI), plasma glucose at fasting and 1 and 2 h, hyperglycemia in pregnancy (HiP). Statistics: Multivariate regression analyses with adjustment. Results: Baseline VitD sufficiency was 66.3%. Overall, VitD compounds did not show strong associations with any glucose homeostasis measures. 25OHD3 showed direct significant associations with: FPG at <20 and 24−28 weeks (standardized β coefficient (β) 0.124, p = 0.030 and 0.111, p = 0.026 respectively), 2 h plasma glucose at 24−28 weeks (β 0.120, p = 0.018), and insulin sensitivity (1/HOMA-IR, β 0.127, p = 0.027) at 35−37 weeks; it showed an inverse association with fasting DI (QUCKI*HOMA-β) at <20 and 24−28 weeks (β −0.124, p = 0.045 and β −0.148, p = 0.004 respectively). 25OHD2 showed direct associations with post-challenge insulin sensitivity (Matsuda, β 0.149, p = 0.048) at 24−28 weeks) and post-challenge DI (Matsuda*Stumvoll phase 1) at 24−28 and 35−37 weeks (β 0.168, p = 0.030, β 0.239, p = 0.006). No significant association with C3-epimer was observed at any time period. Conclusions: In these women with average baseline VitD in sufficiency range, VitD compounds did not show clear beneficial associations with glucose homeostasis measures.
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Affiliation(s)
- Lilian Cristina Mendoza
- Institut de Recerca de l’Hospital de la Santa Creu i Sant Pau, 08025 Barcelona, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain
| | - Jürgen Harreiter
- Clinical Division of Endocrinology and Metabolism, Department of Internal Medicine III, Gender Medicine Unit, Medical University of Vienna, Waehringer Guertel 18–20, 1090 Vienna, Austria
| | - Gernot Desoye
- Department of Obstetrics and Gynecology, Medical University of Graz, 8036 Graz, Austria
| | - David Simmons
- Macarthur Clinical School, School of Medicine, Western Sydney University, Campbelltown, NSE 2560, Australia
| | - Juan M. Adelantado
- Institut de Recerca de l’Hospital de la Santa Creu i Sant Pau, 08025 Barcelona, Spain
| | - Alexandra Kautzky-Willer
- Clinical Division of Endocrinology and Metabolism, Department of Internal Medicine III, Gender Medicine Unit, Medical University of Vienna, Waehringer Guertel 18–20, 1090 Vienna, Austria
| | - Agnieszka Zawiejska
- Department of Reproduction, Poznan University of Medical Sciences, 60-525 Poznan, Poland
| | - Ewa Wender-Ozegowska
- Department of Reproduction, Poznan University of Medical Sciences, 60-525 Poznan, Poland
| | | | - Maria G. Dalfra
- Department of Medicine, University of Padova, 35128 Padova, Italy
| | - Alessandra Bertolotto
- Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy
| | - Roland Devlieger
- Obstetrics and Gynecology, University Hospitals KU Leuven, 3000 Leuven, Belgium
| | - Fidelma Dunne
- College of Medicine, Nursing and Health Sciences, School of Medicine, National University of Ireland, H91 TK33 Galway, Ireland
| | - Elisabeth R. Mathiesen
- Center for Pregnant Women with Diabetes, Departments of Endocrinology and Obstetrics, Rigshospitalet, University of Copenhagen, DK-1165 Copenhagen, Denmark
| | - Peter Damm
- Center for Pregnant Women with Diabetes, Departments of Endocrinology and Obstetrics, Rigshospitalet, University of Copenhagen, DK-1165 Copenhagen, Denmark
| | - Lisse Lotte Andersen
- Department of Gynecology and Obstetrics, Odense University Hospital, 5000 Odense, Denmark
| | - Dorte Moller Jensen
- Department of Gynecology and Obstetrics, Odense University Hospital, 5000 Odense, Denmark
| | - David Hill
- Lawson Health Research Institute, St. Joseph Health Care, London, ON N6A 4V2, Canada
| | | | - Rosa Corcoy
- Institut de Recerca de l’Hospital de la Santa Creu i Sant Pau, 08025 Barcelona, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain
- Departament de Medicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
- Correspondence: ; Tel.: +34-93-556-56-61
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Hajipoor S, Hekmatdoost A, Pasdar Y, Mohammadi R, Alipour M, Rezaie M, Nachvak SM, Balthazar CF, Sobhiyeh MR, Mortazavian AM, Cruz AG. Consumption of probiotic yogurt and vitamin D‐fortified yogurt increases fasting level of GLP‐1 in obese adults undergoing low‐calorie diet: A double‐blind randomized controlled trial. Food Sci Nutr 2022; 10:3259-3271. [PMID: 36249978 PMCID: PMC9548356 DOI: 10.1002/fsn3.2816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 08/27/2021] [Accepted: 11/21/2021] [Indexed: 11/22/2022] Open
Abstract
Energy restriction and manipulation of macronutrient composition of the diet are the main approaches that are used by people who aim to lose weight. When such strategies are employed, appetite and endocrine regulators of satiety, such as gut peptides, all are deeply affected. The gut microbiota–brain axis controls energy homeostasis in humans by affecting central satiety and gut peptides. The purpose of this study was to evaluate if the synergistic effect of probiotics and vitamin D in yogurt matrix can modulate this effect. In the double‐blind, randomized, placebo‐controlled trial, 140 obese adults were randomly allocated into four groups: 1) regular yogurt plus low‐calorie diet; 2) PY plus low‐calorie diet; 3) vitamin D‐fortified yogurt plus low‐calorie diet, and 4) probiotic and vitamin D co‐fortified yogurt plus low‐calorie diet. All groups were encouraged to increase their physical activity. Glucagon‐like peptide‐1 (GLP‐1), peptide Tyrosin‐Tysrosin (PYY), ghrelin, anthropometric variables, insulin, fasting blood sugar (FBS), insulin resistance/sensitivity, 1,25(OH)2 D3, dietary intake, and physical activity were measured before and after 10 weeks. The difference between groups for GLP‐1 after 10 weeks was significant after adjusting for baseline GLP‐1 and protein intake as confounders. PY showed the largest effect size (ES) on GLP‐1 (p = 14.2) and FBS (p = 14) compared with others. Pairwise comparison of yogurts effect sizes on GLP‐1 showed a significant difference in group 1 vs. group 2 (p = .001), group 1 vs. group 3 (p = .003), and group 1 vs. group 4 (p = .048). Vitamin D‐fortified yogurt had the largest effect size on the serum level of vitamin D and it showed a significant difference with RY (p = .018) and PY (p = .002). Consumption of vitamin D‐fortified yogurt and PY could be regarded as a promising approach during calorie restriction.
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Affiliation(s)
- Shima Hajipoor
- Student Research Committee Department of Nutritional Sciences School of Nutritional Sciences and Food Technology Kermanshah University of Medical Sciences Kermanshah Iran
| | - Azita Hekmatdoost
- Department of Nutrition and Food Science Beheshti University of Medical Science Tehran Iran
| | - Yahya Pasdar
- Department of Nutritional Sciences School of Nutritional Sciences and Food Technology Kermanshah University of Medical Sciences Kermanshah Iran
| | - Reza Mohammadi
- Department of Food Science and Technology, School of Nutrition Sciences and Food Technology Kermanshah University of Medical Sciences Kermanshah Iran
| | - Meysam Alipour
- Department of Nutrition Shoushtar Faculty of Medical Sciences Shoushtar Iran
| | - Mansour Rezaie
- Research Centre for Environmental Determinacies of HealthHealth InstituteSchool of Public HealthKermanshah University of Medical Sciences Kermanshah Iran
| | - Seyed Mostafa Nachvak
- Department of Nutritional Sciences School of Nutritional Sciences and Food Technology Kermanshah University of Medical Sciences Kermanshah Iran
| | - Celso Fasura Balthazar
- Department of Food Technology Veterinary CollegeFederal Fluminense University Rio de Janeiro Brazil
| | - Mohammad Reza Sobhiyeh
- Vascular and Endovascular Surgeon Department of Surgery Imam Reza HospitalKermanshah University of Medical Science Kermanshah Iran
| | - Amir Mohammad Mortazavian
- Department of Food Science and Technology National Nutrition and Food Technology Research InstituteFaculty of Nutrition SciencesFood Science and TechnologyShahid Beheshti University of Medical Sciences Tehran Iran
| | - Adriano G. Cruz
- Instituto Federal de EducaçãoCiência e Tecnologia do Rio de Janeiro (IFRJ)Departamento de Alimentos Rio de Janeiro Brazil
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Kawahara T, Suzuki G, Mizuno S, Inazu T, Kasagi F, Kawahara C, Okada Y, Tanaka Y. Effect of active vitamin D treatment on development of type 2 diabetes: DPVD randomised controlled trial in Japanese population. BMJ 2022; 377:e066222. [PMID: 35613725 PMCID: PMC9131780 DOI: 10.1136/bmj-2021-066222] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To assess whether eldecalcitol, an active vitamin D analogue2, can reduce the development of type 2 diabetes among adults with impaired glucose tolerance. DESIGN Double blinded, multicentre, randomised, placebo controlled trial. SETTING Three hospitals in Japan, between June 2013 and August 2019. PARTICIPANTS People aged 30 years and older who had impaired glucose tolerance defined by using a 75 g oral glucose tolerance test and glycated haemoglobin level. INTERVENTIONS Participants were randomised to receive active vitamin D (eldecalcitol 0.75 μg per day; n=630) or matching placebo (n=626) for three years. MAIN OUTCOMES The primary endpoint was incidence of diabetes. Prespecified secondary endpoints were regression to normoglycaemia and incidence of type 2 diabetes after adjustment for confounding factors at baseline. In addition, bone densities and bone and glucose metabolism markers were assessed. RESULTS Of the 1256 participants, 571 (45.5%) were women and 742 (59.1%) had a family history of type 2 diabetes. The mean age of participants was 61.3 years. The mean serum 25-hydroxyvitamin D concentration at baseline was 20.9 ng/mL (52.2 nmol/L); 548 (43.6%) participants had concentrations below 20 ng/mL (50 nmol/L). During a median follow-up of 2.9 years, 79 (12.5%) of 630 participants in the eldecalcitol group and 89 (14.2%) of 626 in the placebo group developed type 2 diabetes (hazard ratio 0.87, 95% confidence interval 0.67 to 1.17; P=0.39). Regression to normoglycaemia was achieved in 145 (23.0%) of 630 participants in the eldecalcitol group and 126 (20.1%) of 626 in the placebo group (hazard ratio 1.15, 0.93 to 1.41; P=0.21). After adjustment for confounding factors by multivariable fractional polynomial Cox regression analysis, eldecalcitol significantly lowered the development of diabetes (hazard ratio 0.69, 0.51 to 0.95; P=0.020). In addition, eldecalcitol showed its beneficial effect among the participants with the lower level of basal insulin secretion (hazard ratio 0.41, 0.23 to 0.71; P=0.001). During follow-up, bone mineral densities of the lumbar spine and femoral neck and serum osteocalcin concentrations significantly increased with eldecalcitol compared with placebo (all P<0.001). No significant difference in serious adverse events was observed. CONCLUSIONS Although treatment with eldecalcitol did not significantly reduce the incidence of diabetes among people with pre-diabetes, the results suggested the potential for a beneficial effect of eldecalcitol on people with insufficient insulin secretion. TRIAL REGISTRATION UMIN Clinical Trials Registry UMIN000010758.
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Affiliation(s)
- Tetsuya Kawahara
- University of Occupational and Environmental Health, Kitakyushu, Japan
- Shin Komonji Hospital, Kitakyushu, Japan
| | - Gen Suzuki
- International University Health and Welfare Clinic, Ohtawara, Japan
| | | | | | | | - Chie Kawahara
- University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Yosuke Okada
- University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Yoshiya Tanaka
- University of Occupational and Environmental Health, Kitakyushu, Japan
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Sheikholeslami-Vatani D, Rostamzadeh N. Changes in Appetite-Dependent Hormones and Body Composition After 8 Weeks of High-Intensity Interval Training and Vitamin D Supplementation in Sedentary Overweight Men. Front Nutr 2022; 9:827630. [PMID: 35198590 PMCID: PMC8860169 DOI: 10.3389/fnut.2022.827630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 01/14/2022] [Indexed: 11/13/2022] Open
Abstract
Exercise and diet are important factors for energy balance and appetite regulation. The aim of this study was to investigate the effect of 8 weeks High Intensity Interval Training (HIIT) and vitamin D3 supplementation in sedentary overweight men. Forty-eight participants were randomly assigned to one of the following four groups (n = 12): HIIT + VitD, HIIT + placebo (3 sessions per week, 10 × 1 min interval cycling at 90-100% VO2peak separated by 1 min active recovery at 15% VO2peakfor 8 weeks), Vit D and control groups. Participants received 2,000 IU/day 25 (OH) D3 or placebo. Measurements were taken pre and post training after 10 h overnight fasting. Insulin, weight, BMI and body fat percentage were significantly decreased, but PYY was significantly increased in the HIIT + Vit D and HIIT + placebo groups (p = 0.001 and p = 0.001, respectively) after 8 weeks of HIIT. Insulin (p = 0.009, p = 0.001), weight, BMI and body fat percentage (p = 0.001, p = 0.001) were significantly lower in the HIIT + Vit D and HIIT + placebo groups compared to the Vit D and control groups. However, PYY was significantly higher in the HIIT + Vit D group compared to the Vit D (p = 0.025) and control groups (p = 0.007) and also in the HIIT + placebo group compared to the Vit D (p = 0.037) and control groups (p = 0.032) after 8 weeks of HIIT. The combination of regular HIIT with vitamin D supplementation has a effect on appetite control and body composition.
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Affiliation(s)
| | - Naser Rostamzadeh
- Department of Physical Education and Sport Sciences, University of Kurdistan, Sanandaj, Iran
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20
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Al Ghadeer HA, AlRamadan MS, Al Amer MM, Alshawaf MJ, Alali FJ, Bubshait AA, Alramadhan MA, Almurayhil Z, Aldandan NS, AlKhamis MA, AlHaddad HA, AlOmair A. Vitamin D Serum Levels in Type 2 Diabetic Patients: A Cross-Sectional Study. Cureus 2022; 14:e22558. [PMID: 35345711 PMCID: PMC8957286 DOI: 10.7759/cureus.22558] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/23/2022] [Indexed: 11/25/2022] Open
Abstract
Background and objective Type 2 diabetes mellitus (T2DM) is a chronic metabolic disorder characterized by hyperglycemia. It is linked with an increase in morbidity (e.g., blindness, kidney failure, stroke, cardiovascular diseases, limb amputations), premature mortality, high healthcare costs, and is quickly becoming a global epidemic disorder. Several studies have shown that vitamin D supplements reduce insulin resistance in T2DM and improve insulin secretion and sensitivity. In this study, we aimed to determine the prevalence of vitamin D deficiency in T2DM patients in Saudi Arabia. Methods This was a retrospective cross-sectional study conducted at the King Faisal University Health Centre in Saudi Arabia. The study used patient data during the period from October 2014 to January 2021. After obtaining approval from the King Faisal University Polyclinic Administration, we collected patient data from the King Faisal University Health Centre. The Ethics and Research Committee at the College of Medicine of King Faisal University granted ethical approval with the approval number (2020-11-82). The relevant patient data were collected, including age, gender, nationality, and blood test findings (vitamin D and HbA1c levels). Results A total of 191 T2DM patients participated in this study. The mean age of the patients was 56.1 ± 11.4 years (range: 21-85 years); 107 (56%) patients were females, and 137 (71.7%) were Saudis. There were 134 (70.2%) patients with vitamin D deficiency, 53 (27.7%) with vitamin D insufficiency, and only four (2.1%) with normal vitamin D levels. Conclusion Based on our findings, the prevalence of vitamin D deficiency among T2DM patients is highly associated with poor diabetic control.
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21
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Ganmaa D, Enkhmaa D, Nasantogtokh E, Sukhbaatar S, Tumur-Ochir KE, Manson JE. Vitamin D, respiratory infections, and chronic disease: Review of meta-analyses and randomized clinical trials. J Intern Med 2022; 291:141-164. [PMID: 34537990 DOI: 10.1111/joim.13399] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Observational studies have suggested associations of vitamin D deficiency (VDD) with respiratory tract infections, impaired bone health, and myriad chronic diseases. OBJECTIVE To assess potential causal relationships between vitamin D supplementation and a reduced risk of these conditions, a review of the evidence across available meta-analyses of randomized control trials (RCTs) and RCTs was performed. METHOD PubMed, Embase, Cochrane Library, and Web of Science were searched from their inception to March 2021. We included only RCTs and meta-analyses of RCTs focusing on the association between vitamin D and respiratory disease, bone health, cardiovascular disease (CVD), diabetes mellitus, and cancer. RESULTS A total of 107 RCTs and 62 meta-analysis of RCTs were included. Although most RCTs did not support benefits of vitamin D supplementation, suggestive evidence for benefit was found in populations at greater risk of VDD and for acute respiratory infections, fractures in institutionalized older adults, type 2 diabetes among patients with prediabetes, and cancer mortality. In contrast, no compelling evidence for benefit was found for other respiratory conditions, fractures in community-dwelling adults, falls, cancer incidence, or CVD. CONCLUSIONS Current evidence from RCTs and meta-analyses of RCTs is inconsistent regarding the effects of vitamin D supplementation on respiratory infections and chronic diseases. Individuals most likely to benefit are those with baseline VDD or with selected high-risk conditions. Public health initiatives are needed to eliminate VDD globally, and future research will be enhanced by a 'precision prevention' approach to identify those most likely to benefit from vitamin D supplementation.
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Affiliation(s)
- Davaasambuu Ganmaa
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA.,Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | | | | | | | | | - J E Manson
- Division of Preventive Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA.,Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
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22
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Janjusevic M, Gagno G, Fluca AL, Padoan L, Beltrami AP, Sinagra G, Moretti R, Aleksova A. The peculiar role of vitamin D in the pathophysiology of cardiovascular and neurodegenerative diseases. Life Sci 2022; 289:120193. [PMID: 34864062 DOI: 10.1016/j.lfs.2021.120193] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 11/24/2021] [Accepted: 11/29/2021] [Indexed: 02/07/2023]
Abstract
Vitamin D is a hormone with both genomic and non-genomic actions. It exerts its activity by binding vitamin D receptor (VDR), which belongs to the superfamily of nuclear receptors and ligand-activated transcription factors. Since VDR has been found in various tissues, it has been estimated that it regulates approximately 3% of the human genome. Several recent studies have shown pleiotropic effects of vitamin D in various processes such as cellular proliferation, differentiation, DNA repair and apoptosis and its involvement in different pathophysiological conditions as inflammation, diabetes mellitus, and anemia. It has been suggested that vitamin D could play an important role in neurodegenerative and cardiovascular disorders. Moderate to strong associations between lower serum vitamin D concentrations and stroke and cardiovascular events have been identified in different analytic approaches, even after controlling for traditional demographic and lifestyle covariates. The mechanisms behind the associations between vitamin D and cerebrovascular and cardiologic profiles have been widely examined both in animal and human studies. Optimization of vitamin D levels in human subjects may improve insulin sensitivity and beta-cell function and lower levels of inflammatory markers. Moreover, it has been demonstrated that altered gene expression of VDR and 1,25D3-membrane-associated rapid response steroid-binding (1,25D3-MARRS) receptor influences the role of vitamin D within neurons and allows them to be more prone to degeneration. This review summarizes the current understanding of the molecular mechanisms underlying vitamin D signaling and the consequences of vitamin D deficiency in neurodegenerative and cardiovascular disorders.
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Affiliation(s)
- Milijana Janjusevic
- Cardiothoracovascular Department, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI) and Department of Medical Surgical and Health Science, University of Trieste, 34149 Trieste, Italy
| | - Giulia Gagno
- Cardiothoracovascular Department, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI) and Department of Medical Surgical and Health Science, University of Trieste, 34149 Trieste, Italy
| | - Alessandra Lucia Fluca
- Cardiothoracovascular Department, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI) and Department of Medical Surgical and Health Science, University of Trieste, 34149 Trieste, Italy
| | - Laura Padoan
- Cardiology and Cardiovascular Physiopathology, Azienda Ospedaliero-Universitaria S. Maria della Misericordia, 06156 Perugia, Italy
| | - Antonio Paolo Beltrami
- Clinical Pathology Department, Azienda Sanitaria Universitaria Friuli Centrale (ASUFC) and Department of Medicine (DAME), University of Udine, 33100 Udine, Italy
| | - Gianfranco Sinagra
- Cardiothoracovascular Department, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI) and Department of Medical Surgical and Health Science, University of Trieste, 34149 Trieste, Italy
| | - Rita Moretti
- Department of Internal Medicine and Neurology, Neurological Clinic, Complex Case Section, Trieste, Italy
| | - Aneta Aleksova
- Cardiothoracovascular Department, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI) and Department of Medical Surgical and Health Science, University of Trieste, 34149 Trieste, Italy.
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Nasr MH, Hassan BAR, Othman N, Karuppannan M, Abdulaziz NB, Mohammed AH, Alsarani MA, Eskembaji MH, Aman AM, Othman G. Prevalence of Vitamin D Deficiency Between Type 2 Diabetes Mellitus Patients and Non-Diabetics in the Arab Gulf. Diabetes Metab Syndr Obes 2022; 15:647-657. [PMID: 35250286 PMCID: PMC8896538 DOI: 10.2147/dmso.s350626] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Accepted: 02/15/2022] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND The link between the risk of type 2 diabetes mellitus (T2DM) and vitamin D deficiency has perplexed the medical society due to the controversy in the data available. Saudi Arabia (SA) is a sunny region; however, ample amount of data reported the increased prevalence of vitamin D deficiency along with T2DM. Thus, this study aimed to compare vitamin D deficiency between healthy and T2DM patients in SA, alongside with the risk factors associated with that. METHODS A cross-sectional study was conducted in the Medical Unit, Taibah University in Al-Madinah Al-Munawarah, SA, from November 2017 to May 2018. The involved participants were non-diabetics and T2DM men. Measuring vitamin D for T2DM and non-diabetics group was done by trained technicians. Data analysis was done via SPSS. RESULTS Sixty-four participants (T2DM group = 32; non-diabetics group = 32) were recruited, and the mean age of T2DM patients was 48.6 ± 10.4, while that of the non-diabetics was 42.4 ± 6.5. The mean of vitamin D level was found higher in the non-diabetic participants than in diabetic patients. There was statistically significant association between vitamin D deficiency and T2DM (P = 0.001). Besides, duration of diabetes was the only factor, found to be positively correlated with vitamin D deficiency in T2DM patients. CONCLUSION Early screening for vitamin D serum-level is recommended for T2DM patients in Saudi Arabia. Therefore, early correction of vitamin D levels should be considered, and medical and scientific societies, along with other sectors such as the media, should highlight and increase the awareness of the importance of vitamin D and the seriousness of its deficiency.
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Affiliation(s)
- Muhammed Hassan Nasr
- Clinical Pharmacy Department, Faculty of Health Sciences and Nursing, Al-Rayan Colleges, Al-Madinah Al-Munawarah, Saudi Arabia
| | | | - Noordin Othman
- Quality Use of Medicines in Umrah and Hajj Pilgrimage Research Group, Department of Clinical and Hospital Pharmacy, Faculty of Pharmacy, Taibah University, Al-Madinah Al-Munawarah, Saudi Arabia
| | - Mahmathi Karuppannan
- Department of Pharmacy Practice, Faculty of Pharmacy, Universiti Teknologi MARA, Puncak Alam Campus, Bandar Puncak Alam, 42300, Selangor, Malaysia
| | - Noorizan binti Abdulaziz
- Clinical Pharmacy Department, Faculty of Pharmacy, Management and Science University, Shah Alam, Malaysia
| | - Ali Haider Mohammed
- Department of Pharmacy, Al Rafidain University College, Baghdad, 10001, Iraq
- School of Pharmacy, Monash University Malaysia, Bandar Sunway, 47500, Selangor, Malaysia
| | - Mohammed Ahmed Alsarani
- Laboratory Department, Medical Care Unit, Taibah University, Al-Madinah Al-Munawarah, Saudi Arabia
| | | | - Abdelmannan Mohamed Aman
- Family Medicine Department, Medical Care Unit, Taibah University, Al-Madinah Al-Munawarah, Saudi Arabia
| | - Gamil Othman
- Department of Clinical Pharmacy and Pharmacy Practice, Faculty of Pharmacy, University of Science and Technology, Sana’a, Yemen
- Correspondence: Gamil Othman, Email
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Mohd Ghozali N, Giribabu N, Salleh N. Mechanisms Linking Vitamin D Deficiency to Impaired Metabolism: An Overview. Int J Endocrinol 2022; 2022:6453882. [PMID: 35859985 PMCID: PMC9293580 DOI: 10.1155/2022/6453882] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 05/19/2022] [Accepted: 06/13/2022] [Indexed: 12/12/2022] Open
Abstract
Vitamin D deficiency is a common health problem worldwide. Despite its known skeletal effects, studies have begun to explore its extra-skeletal effects, that is, in preventing metabolic diseases such as obesity, hyperlipidemia, and diabetes mellitus. The mechanisms by which vitamin D deficiency led to these unfavorable metabolic consequences have been explored. Current evidence indicates that the deficiency of vitamin D could impair the pancreatic β-cell functions, thus compromising its insulin secretion. Besides, vitamin D deficiency could also exacerbate inflammation, oxidative stress, and apoptosis in the pancreas and many organs, which leads to insulin resistance. Together, these will contribute to impairment in glucose homeostasis. This review summarizes the reported metabolic effects of vitamin D, in order to identify its potential use to prevent and overcome metabolic diseases.
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Affiliation(s)
- Nurulmuna Mohd Ghozali
- Department of Physiology, Faculty of Medicine, University of Malaya, Lembah Pantai, Kuala Lumpur 59100, Malaysia
| | - Nelli Giribabu
- Department of Physiology, Faculty of Medicine, University of Malaya, Lembah Pantai, Kuala Lumpur 59100, Malaysia
| | - Naguib Salleh
- Department of Physiology, Faculty of Medicine, University of Malaya, Lembah Pantai, Kuala Lumpur 59100, Malaysia
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Holt R, Petersen JH, Dinsdale E, Knop FK, Juul A, Jørgensen N, Blomberg Jensen M. Vitamin D Supplementation Improves Fasting Insulin Levels and HDL Cholesterol in Infertile Men. J Clin Endocrinol Metab 2022; 107:98-108. [PMID: 34508607 DOI: 10.1210/clinem/dgab667] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Indexed: 11/19/2022]
Abstract
CONTEXT Vitamin D has been linked with glucose and lipid metabolism. Men with impaired gonadal function have a higher risk of metabolic syndrome and mortality, and vitamin D status may be a reversible modulator. OBJECTIVE This work aimed to determine the effect of daily vitamin D and calcium supplementation for 150 days on glucose and lipid homeostasis in infertile men. METHODS A single-center, double-blinded, randomized clinical trial (NCT01304927) was conducted. A total of 307 infertile men were randomly assigned (1:1) to a single dose of 300 000 IU cholecalciferol followed by 1400 IU cholecalciferol + 500 mg of calcium daily (n = 151) or placebo (n = 156) for 150 days. Reported metabolic parameters including fasting plasma glucose, glycated hemoglobin A1c, fasting serum insulin, homeostatic model assessment of insulin resistance (HOMA-IR), fasting plasma cholesterols, and triglycerides were secondary end points. The primary end point semen quality has previously been reported. RESULTS Men receiving vitamin D supplementation improved their vitamin D status, whereas vitamin D status was aggravated in the placebo group characterized by higher serum parathyroid hormone. At the end of the trial, men receiving vitamin D supplementation had 13% lower fasting serum insulin concentrations compared with the placebo-treated group (65 vs 74 pmol/L, P = .018) and 19% lower HOMA-IR (2.2 vs 2.7, P = .025). Moreover, men in the vitamin D group had higher high-density lipoprotein (HDL) cholesterol levels (1.38 vs 1.32 mmol/L, P = .008) compared with the placebo group. CONCLUSION High-dose vitamin D supplementation has beneficial effects on glucose homeostasis and HDL cholesterol levels in infertile men.
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Affiliation(s)
- Rune Holt
- Group of Skeletal, Mineral and Gonadal Endocrinology, Department of Growth and Reproduction, Rigshospitalet, Copenhagen, 2100, Denmark
| | - Jørgen Holm Petersen
- Department of Growth and Reproduction and International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital - Rigshospitalet, Copenhagen, 2100, Denmark
- Section of Biostatistics, Faculty of Health Sciences, University of Copenhagen, 1014, Denmark
| | - Elsa Dinsdale
- Group of Skeletal, Mineral and Gonadal Endocrinology, Department of Growth and Reproduction, Rigshospitalet, Copenhagen, 2100, Denmark
| | - Filip Krag Knop
- Center for Clinical Metabolic Research, Gentofte Hospital, University of Copenhagen, Hellerup, 2900, Denmark
- Steno Diabetes Center Copenhagen, Gentofte, 2820, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, 2200, Denmark
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, 2200, Denmark
| | - Anders Juul
- Department of Growth and Reproduction and International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital - Rigshospitalet, Copenhagen, 2100, Denmark
| | - Niels Jørgensen
- Department of Growth and Reproduction and International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital - Rigshospitalet, Copenhagen, 2100, Denmark
| | - Martin Blomberg Jensen
- Group of Skeletal, Mineral and Gonadal Endocrinology, Department of Growth and Reproduction, Rigshospitalet, Copenhagen, 2100, Denmark
- Division of Bone and Mineral Research, Harvard School of Dental Medicine/Harvard Medical School, Harvard University, Boston, Massachusetts 02115, USA
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26
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Wood C, Hasan S, Darukhanavala A, Tangpricha V. A Clinician’s guide to vitamin D supplementation for patients with cystic fibrosis. J Clin Transl Endocrinol 2021; 26:100273. [PMID: 34815946 PMCID: PMC8593649 DOI: 10.1016/j.jcte.2021.100273] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 10/14/2021] [Accepted: 10/26/2021] [Indexed: 11/20/2022] Open
Abstract
Vitamin D deficiency is multifactorial in the cystic fibrosis population. Vitamin D deficiency can adversely affect multiple organ systems in the cystic fibrosis population. In the cystic fibrosis population in the United States, we aim to treat to serum 25-hydroxyvitamin D levels over 30 ng/ml. Cholecalciferol is used in preference to ergocalciferol. Daily or once weekly dosing regimens are chosen according to patient preference and compliance.
Vitamin D deficiency is common in the general population, and even more so in patients with cystic fibrosis. Deficiency is exacerbated in cystic fibrosis patients because of a myriad of causes including malabsorption, decreased fat mass, reduced 25-hydroxylation of vitamin D, reduced exposure to sunlight, decreased vitamin D binding protein, and exposure to drugs that increase catabolism. In turn, vitamin D deficiency can contribute to poor bone health. Additionally, it may contribute to pulmonary decline in the form of worsening pulmonary function, increased colonization with pathogens, and increased pulmonary exacerbation. Because vitamin D deficiency is correlated with negative clinical effects in multiple organ systems of patients with cystic fibrosis, it is important to screen for and treat deficiency in these patients. The Cystic Fibrosis Foundation has issued guidelines for the treatment of vitamin D deficiency, targeting serum levels of 25-hydroxyvitamin D of at least 30 ng/ml. The guidelines offer age-specific escalating dose regimens depending on serum vitamin D levels, with monitoring at 12- week intervals after changing therapy. They address the literature on alternative vitamin D sources, such as UV lamps, ideal formulations (cholecalciferol in preference to ergocalciferol), and optimal vehicles of administration. Despite these detailed recommendations, most centers are still unable to achieve in-target serum vitamin D levels for many of their patients. Future research examining ideal treatment regimens to achieve serum targets and maximize clinical effects are needed. Moreover, it is unknown whether vitamin D sufficiency will be easier to achieve on new triple therapy cystic fibrosis drug combinations, and how these drugs will contribute to vitamin D-related clinical outcomes.
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Hussain T, Eimal Latif AH, Malik S, Raza S, Saeed T, Salman Zahid A, Nazary K, Arshad MM, Khan R, Walizada K, Wahab A. Vitamin D Deficiency and Associated Risk Factors in Muslim Housewives of Quetta, Pakistan: A Cross-Sectional Study. Cureus 2021; 13:e17643. [PMID: 34646691 PMCID: PMC8485963 DOI: 10.7759/cureus.17643] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/30/2021] [Indexed: 01/08/2023] Open
Abstract
Background Vitamin D (Vit-D) plays a central role in calcium homeostasis and maintains skeletal integrity. Housewives in Quetta, Pakistan are at increased risk of vitamin D deficiency (VDD). They spend a greater part of their day in cleaning, washing, cooking, managing daily groceries, and other household chores. Thus, little time is left for self-care and outdoor activities. They wear hijab and have very little exposure to sunlight. In addition, their diet is deficient in Vit-D-rich food items, rendering them at high risk of VDD. Fear of getting tanned, melasma, and preference for a fair complexion further limit their sun exposure. This study evaluates the prevalence of VDD in housewives and determines its various risk factors to recommend screening guidelines for VDD. Methods A cross-sectional study was performed between November 2020 and April 2021 and recruited housewives aged >18 from the outpatient department of a tertiary care hospital in Quetta. Informed consent was obtained from all participants. VDD was defined as a serum 25(OH)-D level <20 ng/mL (50 nmol/L). Sociodemographic variables and information about the dietary habits, perception, attitudes towards sunlight, and daily duration of sunlight exposure were collected. Mean and standard deviation (SD) were calculated for continuous variables and counts, and proportions were calculated for categorical variables like education, age. Univariate and multivariate logistic regression analyses were performed to determine the risk factors and associations of VDD. Data were analyzed by SAS/STAT software (version 9.4). Results Among 151 housewives, 58.9% of housewives had VDD. VDD group had a higher proportion of females aged 18-30 years and a lower proportion of graduates. The reported use of Vit-D supplements was much lower in the VDD group compared with the non-deficient group, 38.2% versus 71.0 %, P-value <0.001. History of fragility fractures was reported by 10.1% of housewives in the VDD group compared to 4.8% in the non-deficient group, P-value: 0.03. Around 77.5% of housewives in the VDD group spent 15 minutes or less outdoors versus 51.6% in the non-deficient group; 55.1% of housewives in the VDD group reported that they never consumed milk versus 17.7 % in the non-deficient group, P-value <0.00001. In the univariate logistic regression model, housewives with an 11-12th grade of education had 4.80-fold higher odds of VDD compared to those who had undergraduate or graduate degrees (OR: 4.80, 95 % CI: 1.07-21.45). Housewives who never consumed milk had 9.72-fold (95 % CI: 3.69-25.58) higher odds of VDD compared to those who consumed milk on daily basis. Odds of VDD were 3.61-fold (95% CI: 1.06-12.31) higher in those who never consumed fish as compared to those who ate fish at least 1-2 days/week. In multivariate logistic regression, age group 18-30 (OR: 17.07, 95% CI: 1.18-246.86), and never consuming milk (OR: 7.33, 95 % CI: 1.99-26.89) were independently associated with VDD. Conclusion VDD is highly prevalent (58.9%) in housewives of Quetta. It is the need of time to increase awareness regarding the health benefits, sources, and deficiency symptoms of Vit-D. Our study revealed VDD in housewives irrespective of education and income. Dietary supplementations were greater predictors of VDD. Daily sun exposure should be encouraged, and food items should be fortified with Vit-D. Recommendations for Vitamin D screening would be a good step, especially in Muslim housewives.
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Affiliation(s)
- Taimoor Hussain
- Neurology/General Medicine, Bolan Medical College, Quetta, PAK
| | | | - Sheza Malik
- Medicine, Army Medical College Rawalpindi, Rawalpindi, PAK
| | - Sami Raza
- Orthopedics, Shaheed Mohtarma Benazir Bhutto Government Hospital Quetta, Quetta, PAK
| | - Tooba Saeed
- Medicine and Surgery, Kabul University of Medical Sciences, Kabul, AFG
| | | | | | | | - Rajeswari Khan
- Medicine and Surgery, Hospital College of Medicine and Sagore Dutta Hospital, Kolkata, IND
| | - Khalida Walizada
- Neurological Surgery, Ali Abad Teaching Hospital Karte Sakhi Kabul Afghanistan, Kabul, AFG
| | - Ahsan Wahab
- Internal Medicine Department, Baptist Medical Center South, Montgomery, USA
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Contreras-Bolívar V, García-Fontana B, García-Fontana C, Muñoz-Torres M. Mechanisms Involved in the Relationship between Vitamin D and Insulin Resistance: Impact on Clinical Practice. Nutrients 2021; 13:3491. [PMID: 34684492 DOI: 10.3390/nu13103491] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/25/2021] [Accepted: 09/29/2021] [Indexed: 12/29/2022] Open
Abstract
Recent evidence has revealed anti-inflammatory properties of vitamin D as well as extra-skeletal activity. In this context, vitamin D seems to be involved in infections, autoimmune diseases, cardiometabolic diseases, and cancer development. In recent years, the relationship between vitamin D and insulin resistance has been a topic of growing interest. Low 25-hydroxyvitamin D (25(OH)D) levels appear to be associated with most of the insulin resistance disorders described to date. In fact, vitamin D deficiency may be one of the factors accelerating the development of insulin resistance. Vitamin D deficiency is a common problem in the population and may be associated with the pathogenesis of diseases related to insulin resistance, such as obesity, diabetes, metabolic syndrome (MS) and polycystic ovary syndrome (PCOS). An important question is the identification of 25(OH)D levels capable of generating an effect on insulin resistance, glucose metabolism and to decrease the risk of developing insulin resistance related disorders. The benefits of 25(OH)D supplementation/repletion on bone health are well known, and although there is a biological plausibility linking the status of vitamin D and insulin resistance supported by basic and clinical research findings, well-designed randomized clinical trials as well as basic research are necessary to know the molecular pathways involved in this association.
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Chang Villacreses MM, Karnchanasorn R, Panjawatanan P, Ou HY, Chiu KC. Conundrum of vitamin D on glucose and fuel homeostasis. World J Diabetes 2021; 12:1363-1385. [PMID: 34630895 PMCID: PMC8472505 DOI: 10.4239/wjd.v12.i9.1363] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 05/10/2021] [Accepted: 08/05/2021] [Indexed: 02/06/2023] Open
Abstract
As an endocrine hormone, vitamin D plays an important role in bone health and calcium homeostasis. Over the past two decades, the non-calcemic effects of vitamin D were extensively examined. Although the effect of vitamin D on beta cell function were known for some time, the effect of vitamin D on glucose and fuel homeostasis has attracted new interest among researchers. Yet, to date, studies remain inconclusive and controversial, in part, due to a lack of understanding of the threshold effects of vitamin D. In this review, a critical examination of interventional trials of vitamin D in prevention of diabetes is provided. Like use of vitamin D for bone loss, the benefits of vitamin D supplementation in diabetes prevention were observed in vitamin D-deficient subjects with serum 25-hydroxyvitamin D < 50 nmol/L (20 ng/mL). The beneficial effect from vitamin D supplementation was not apparent in subjects with serum 25-hydroxyvitamin D > 75 nmol/L (30 ng/mL). Furthermore, no benefit was noted in subjects that achieved serum 25-hydroxyvitamin D > 100 nmol/L (40 ng/mL). Further studies are required to confirm these observations.
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Affiliation(s)
- Maria Mercedes Chang Villacreses
- Department of Clinical Diabetes, Endocrinology, and Metabolism, City of Hope National Medical Center, Duarte, CA 91010, United States
- Division of Endocrinology, Metabolism and Nutrition, Department of Internal Medicine, Harbor-UCLA Medical Center, Torrance, CA 90509, United States
| | - Rudruidee Karnchanasorn
- Division of Endocrinology, Department of Medicine, University of Kansas Medical Center, Kansas City, KS 66160, United States
| | - Panadeekarn Panjawatanan
- Department of Clinical Diabetes, Endocrinology, and Metabolism, City of Hope National Medical Center, Duarte, CA 91010, United States
- Department of Internal Medicine, Bassett Medical Center, Cooperstown, NY 13326, United States
| | - Horng-Yih Ou
- Department of Internal Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan 700, Taiwan
| | - Ken C Chiu
- Department of Clinical Diabetes, Endocrinology, and Metabolism, City of Hope National Medical Center, Duarte, CA 91010, United States
- Division of Endocrinology, Metabolism and Nutrition, Department of Internal Medicine, Harbor-UCLA Medical Center, Torrance, CA 90509, United States
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Aludwan M, Kobyliak N, Abenavoli L, Kyriienko D, Fagoonee S, Pellicano R, Komisarenko I. Vitamin D3 deficiency is associated with more severe insulin resistance and metformin use in patients with type 2 diabetes. MINERVA ENDOCRINOL 2021; 45:172-180. [PMID: 33000618 DOI: 10.23736/s0391-1977.20.03161-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Vitamin D3 (vit. D3) deficiency is considered as one of the main factors involved in the development of type 2 diabetes (T2D). We assessed insulin resistance (IR), β-cell functional activity and metabolic profile according to 25(OH) vit. D3 status in patients with T2D. METHODS The study included 109 patients with T2D, divided in 3 groups: group 1 (N.=11) with normal levels of vit. D3 (>30 ng/mL); group 2 (N.=38) with vit. D3 insufficiency (21-29 ng/mL); and group 3 (N.=60) with vit. D3 deficiency (<20 ng/mL). IR and β-cell functional activity were assessed as change in C-peptide concentration and homeostasis model assessment-estimated (HOMA) β-cell function which was calculated using HOMA2 calculator. RESULTS Patients with vit. D3 deficiency presented significantly higher C-peptide concentration compared to other groups. HOMA2 (3.29±1.89 vs. 2.12±0.71; P=0.049) and hemoglobin (H8b)A1c (9.11±1.63 vs. 7.75±1.06; P=0.016) levels changed significantly only in patients with vit. D3 deficiency compared to diabetics with normal vit. D3 levels. Furthermore, in univariate Pearson's correlation analysis, we observed significant association between vit. D3 levels and C-peptide, insulin sensitivity, HOMA2, triglyceride-glucose index, HbA1c and Body Mass Index, only in the vit. D3 deficiency group. In multivariate logistic regression analysis, poor glycemic control, as defined by HbA1c levels, was independent from metformin use while high density lipoprotein-cholesterol levels were associated with vit. D3 deficiency. CONCLUSIONS Our study demonstrated that vit. D3 deficiency in patients with T2D was associated with more severe IR, poor glycemic control and obesity compared to normal status or vit. D3 insufficiency.
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Affiliation(s)
- Mahmoud Aludwan
- Department of Endocrinology, Bogomolets National Medical University, Kyiv, Ukraine
| | - Nazarii Kobyliak
- Department of Endocrinology, Bogomolets National Medical University, Kyiv, Ukraine -
| | - Ludovico Abenavoli
- Department of Health Sciences, Magna Graecia University of Catanzaro, Italy
| | - Dmytro Kyriienko
- Department of Endocrinology, Bogomolets National Medical University, Kyiv, Ukraine.,Department of General Endocrine Pathology, Kyiv City Clinical Endocrinology Center, Kyiv, Ukraine
| | - Sharmila Fagoonee
- Institute of Biostructure and Bioimaging, National Research Council, Molecular Biotechnology Center, Turin, Italy
| | - Rinaldo Pellicano
- Unit of Gastroenterology, Molinette Hospital, Città della Salute e della Scienza, Turin, Italy
| | - Iuliia Komisarenko
- Department of Endocrinology, Bogomolets National Medical University, Kyiv, Ukraine
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Lee J, Lee YJ, Kim Y. A high prevalence of prediabetes and vitamin D deficiency are more closely associated in women: results of a cross-sectional study. J Int Med Res 2021; 49:3000605211033384. [PMID: 34334004 PMCID: PMC8326633 DOI: 10.1177/03000605211033384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 06/15/2021] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVE Many studies have shown that vitamin D deficiency is associated with insulin resistance and metabolic syndrome. However, few studies have shown independent associations between vitamin D deficiency and the metabolic characteristics of prediabetes. We aimed to evaluate the relationship between serum vitamin D concentration and metabolic risk factors in adults with prediabetes. METHODS We enrolled 161 patients aged 25 to 75 years in a cross-sectional study and collected clinical and biochemical data, including 25-hydroxyvitamin D (25[OH]D) status and fasting glucose concentration. Vitamin D status was defined as follows: deficiency (25[OH]D <49.9 ng/mL), insufficiency (49.9 to 74.9 nmol/L) or sufficiency (>74.9 nmol/L). Prediabetes was defined using fasting plasma glucose concentrations of 5.55 to 6.49 mmol/L. RESULTS The prevalences of vitamin D deficiency and insufficiency were 49.7% and 24.8%, respectively. Participants with vitamin D deficiency had a higher prevalence of prediabetes than those without (53.8% vs. 32.1%), and there was a significant relationship between female sex and vitamin D status (odds ratio: 1.382; 95% confidence interval: 0.335-5.693). CONCLUSION Vitamin D deficiency is more closely associated with a high prevalence of prediabetes in women than in men. Further studies are needed to elucidate the explanation for this association.
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Affiliation(s)
- Jeonghun Lee
- Department of Internal Medicine, Ye Hospital, Anyang, Korea
| | - Young Joo Lee
- Department of Obstetrics and Gynecology, Kyung Hee University Medical Center, Kyung Hee University Medical Center, Kyung Hee University College of Medicine, Seoul, Korea
| | - Youngsun Kim
- Department of Obstetrics and Gynecology, Kyung Hee University Medical Center, Kyung Hee University Medical Center, Kyung Hee University College of Medicine, Seoul, Korea
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32
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Mahluji S, Jalili M, Ostadrahimi A, Hallajzadeh J, Ebrahimzadeh-Attari V, Saghafi-Asl M. Nutritional management of diabetes mellitus during the pandemic of COVID-19: a comprehensive narrative review. J Diabetes Metab Disord 2021; 20:963-972. [PMID: 33842400 PMCID: PMC8021300 DOI: 10.1007/s40200-021-00784-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Accepted: 03/20/2021] [Indexed: 01/08/2023]
Abstract
Objectives According to the recent epidemiological studies, patients with diabetes mellitus (DM) may be at higher risk of hospitalization due to COVID-19. Regarding the important role of nutrition on the immunity, the present review article aimed to outline nutritional support of DM during the outbreak of COVID-19 with a mechanistic insight. Methods Searches were performed in PubMed/MEDLINE, ScienceDirect, Scopus, and Google Scholar databases from 2000 until December 2020 using the following keywords. All relevant clinical and experimental studies published in English were included. Results Evidences revealed that hyperglycemia is a significant predictor of some viral infections including COVID-19 which can exacerbate the complications of DM. According to the literature review, adequate intake of dietary protein, fiber, essential fatty acids and some micronutrients especially vitamins D, C, B12, folate, zinc and selenium has beneficial effects on the prevention and treatment of COVID-19 in diabetic patients through modulation of innate and adaptive immune responses or direct effects on virus enzymes or the rate of cell entrance. Conclusions It is well understood that malnutrition may increase susceptibility to viral infections and disease progression. Therefore, considering nutritional status of diabetic patients and reasonable supplementation of the above mentioned nutrients can ameliorate the symptoms of COVID-19 in DM. However, further well-designed clinical trials are needed to determine their therapeutic dose.
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Affiliation(s)
- Sepideh Mahluji
- Nutrition Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahsa Jalili
- Department of Biology, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Alireza Ostadrahimi
- Nutrition Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Clinical Nutrition, Faculty of Nutrition & Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Jamal Hallajzadeh
- Department of Biochemistry, Maragheh University of Medical Sciences, Maragheh, Iran
| | | | - Maryam Saghafi-Asl
- Nutrition Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Clinical Nutrition, Faculty of Nutrition & Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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Xiong K, Wang J, Ma A. Adjunctive vitamin A and D for the glycaemic control in patients with concurrent type 2 diabetes and tuberculosis: a randomised controlled trial. Br J Nutr 2021;:1-7. [PMID: 33820572 DOI: 10.1017/S0007114521001185] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The objective of this study is to investigate the effects of vitamin A, D and their interaction on the glycaemic control in patients with both diabetes and tuberculosis. Tuberculosis infection and its treatment induce hyperglycaemia and complicate the glycaemic control in patients with diabetes. A randomised controlled trial with a 2 × 2 factorial design was conducted in a tuberculosis-specialised hospital in Qingdao, China. A total of 279 patients who have both diabetes and tuberculosis were included in this analysis. The patients received standard anti-tuberculosis treatment alone (control group), or together with a dose of vitamin A (600 μg RAE/d) or vitamin D (10 μg/d) or a combination of vitamin A (600 μg RAE/d) and vitamin D (10 μg/d) for 2 months. The effects of the intervention on fasting plasma glucose and 2-h postprandial blood glucose were investigated by ANCOVA. The analysis was adjusted for baseline values, age, sex, smoking, drinking and antidiabetic treatment as covariates. No significant effect was observed for vitamin A and D supplementation on fasting plasma glucose, 2-h postprandial blood glucose, BMI and related blood parameters. No interaction was observed between vitamin A and D supplementation for these endpoints. Vitamin A and D supplementation showed a null effect on the glycaemic control for patients with concurrent diabetes and tuberculosis. Future work should evaluate the effect of vitamin A and D supplementation on insulin-related indices for these patients and investigate the effect of vitamin D receptor genotypes.
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Quach K, Abdelmasih M, Chen PX, Li Y, Famure O, Nash M, Prasad R, Perkins BA, Yip PM, Kim SJ. Vitamin D Levels and the Risk of Posttransplant Diabetes Mellitus After Kidney Transplantation. Prog Transplant 2021; 31:133-141. [PMID: 33789542 PMCID: PMC8182337 DOI: 10.1177/15269248211002796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Introduction: Given the burden of posttransplant diabetes mellitus and the high prevalence
of low vitamin D levels in kidney transplant recipients, it is reasonable to
consider vitamin D as a novel and potentially modifiable risk factor in this
patient population. Research question: To determine the association between 25- hydroxyvitamin D (25(OH)D) level and
posttransplant diabetes among kidney transplant recipients. Design: In a
multi-center cohort study of 442 patients who received a kidney transplant
between January 1, 2005 and December 31, 2010, serum samples within one-year
before transplant were analyzed for 25(OH)D levels. The association between
25(OH)D and posttransplant diabetes were examined in Cox proportional hazard
models. Results: The median 25(OH)D level was 66 nmol/L. The cumulative probability of
diabetes at 12-months by quartiles of 25(OH)D (< 42, 42 to 64.9, 65 to
94.9, and > 95 nmol/L) were 23.4%, 26.9%, 21.4%, and 15.6%, respectively.
Compared to the highest 25(OH)D quartile, hazard ratios (95% CI) for the
risk were 1.85 (1.03, 3.32), 2.01 (1.12, 3.60), 1.77 (0.96, 3.25) across the
first to third quartiles, respectively. The associations were accentuated in
a model restricted to patients on tacrolimus. When modeled as a continuous
variable, 25(OH)D levels were significantly associated with a higher risk of
diabetes (hazard ratio 1.06, 95% CI: 1.01, 1.13 per 10 nmol/L decrease). Discussion: Serum 25(OH)D was an independent predictor of posttransplant diabetes in
kidney transplant recipients. These results may inform the design of trials
using vitamin D to reduce the risk in kidney transplant recipients.
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Affiliation(s)
- Kevin Quach
- Division of Nephrology and the Kidney Transplant Program, 7989University Health Network, Toronto, Ontario, Canada
| | - Monica Abdelmasih
- Division of Nephrology and the Kidney Transplant Program, 7989University Health Network, Toronto, Ontario, Canada
| | - Pei Xuan Chen
- Division of Nephrology and the Kidney Transplant Program, 7989University Health Network, Toronto, Ontario, Canada
| | - Yanhong Li
- Division of Nephrology and the Kidney Transplant Program, 7989University Health Network, Toronto, Ontario, Canada
| | - Olusegun Famure
- Division of Nephrology and the Kidney Transplant Program, 7989University Health Network, Toronto, Ontario, Canada
| | - Michelle Nash
- Division of Nephrology, St. Michael's Hospital and 7938University of Toronto, Toronto, Ontario, Canada
| | - Ramesh Prasad
- Division of Nephrology, St. Michael's Hospital and 7938University of Toronto, Toronto, Ontario, Canada
| | - Bruce A Perkins
- Division of Endocrinology, Universal Health Network and 7938University of Toronto, Toronto, Ontario, Canada.,Institute of Health Policy, Management and Evaluation, 7938University of Toronto, Toronto, Ontario, Canada
| | - Paul M Yip
- Laboratory Medicine and Pathobiology, University Health Network and 7938University of Toronto, Toronto, Ontario, Canada.,Division of Clinical Biochemistry, 7938University of Toronto, Toronto, Ontario, Canada
| | - S Joseph Kim
- Division of Nephrology and the Kidney Transplant Program, 7989University Health Network, Toronto, Ontario, Canada.,Division of Nephrology, St. Michael's Hospital and 7938University of Toronto, Toronto, Ontario, Canada.,Institute of Health Policy, Management and Evaluation, 7938University of Toronto, Toronto, Ontario, Canada
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Pinheiro MM, Pinheiro FMM, Diniz SN, Fabbri A, Infante M. Combination of vitamin D and dipeptidyl peptidase-4 inhibitors (VIDPP-4i) as an immunomodulation therapy for autoimmune diabetes. Int Immunopharmacol 2021; 95:107518. [PMID: 33756226 DOI: 10.1016/j.intimp.2021.107518] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/15/2021] [Accepted: 02/16/2021] [Indexed: 12/18/2022]
Abstract
Type 1 diabetes (T1D) and latent autoimmune diabetes in adults (LADA) represent the most common types of autoimmune diabetes and are characterized by different age of onset, degrees of immune-mediated destruction of pancreatic beta cells and rates of disease progression towards insulin dependence. Several immunotherapies aimed to counteract autoimmune responses against beta cells and preserve beta-cell function are currently being investigated, particularly in T1D. Preliminary findings suggest a potential role of combination therapy with vitamin D and dipeptidyl peptidase-4 (DPP-4) inhibitors (VIDPP-4i) in preserving beta-cell function in autoimmune diabetes. This manuscript aims to provide a comprehensive overview of the immunomodulatory properties of vitamin D and DPP-4 inhibitors, as well as the rationale for investigation of their combined use as an immunomodulation therapy for autoimmune diabetes.
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Affiliation(s)
- Marcelo Maia Pinheiro
- UNIVAG, University Center, Dom Orlando Chaves Ave, 2655 - Cristo Rei, Várzea Grande, 78118-000 Mato Grosso, Brazil; Universidade Anhanguera de São Paulo - SP, 3305, Raimundo Pereira de Magalhães Ave., Pirituba, São Paulo, 05145-200 São Paulo, Brazil.
| | - Felipe Moura Maia Pinheiro
- Hospital de Base, Faculdade de Medicina de São José do Rio Preto FAMERP - SP, 5546, Brigadeiro Faria Lima Ave, Vila São Pedro, São José do Rio Preto, 15015-500 São Paulo, Brazil
| | - Susana Nogueira Diniz
- Universidade Anhanguera de São Paulo - SP, 3305, Raimundo Pereira de Magalhães Ave., Pirituba, São Paulo, 05145-200 São Paulo, Brazil
| | - Andrea Fabbri
- Diabetes Research Institute Federation (DRIF), Division of Endocrinology and Diabetes, CTO Andrea Alesini Hospital, ASL Roma 2, Department of Systems Medicine, University of Rome Tor Vergata, Via San Nemesio 21, 00145 Rome, Italy
| | - Marco Infante
- Diabetes Research Institute Federation (DRIF), Division of Endocrinology and Diabetes, CTO Andrea Alesini Hospital, ASL Roma 2, Department of Systems Medicine, University of Rome Tor Vergata, Via San Nemesio 21, 00145 Rome, Italy; UniCamillus, Saint Camillus International University of Health Sciences, Via di Sant'Alessandro, 8, 00131 Rome, Italy; Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Via San Nemesio 21, 00145 Rome, Italy.
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36
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Viloria K, Hewison M, Hodson DJ. Vitamin D binding protein/GC-globulin: a novel regulator of alpha cell function and glucagon secretion. J Physiol 2021; 600:1119-1133. [PMID: 33719063 DOI: 10.1113/jp280890] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 03/05/2021] [Indexed: 12/24/2022] Open
Abstract
The contribution of glucagon to type 1 and type 2 diabetes has long been known, but the underlying defects in alpha cell function are not well-described. During both disease states, alpha cells respond inappropriately to stimuli, leading to dysregulated glucagon secretion, impaired glucose tolerance and hypoglycaemia. The mechanisms involved in this dysfunction are complex, but possibly include changes in alpha cell glucose-sensing, alpha cell de-differentiation, paracrine feedback, as well as alpha cell mass. However, the molecular underpinnings of alpha cell failure are still poorly understood. Recent transcriptomic analyses have identified vitamin D binding protein (DBP), encoded by GC/Gc, as an alpha cell signature gene. DBP is highly localized to the liver and alpha cells and is virtually absent from other tissues and cell types under non-pathological conditions. While the vitamin D transportation role of DBP is well characterized in the liver and circulation, its function in alpha cells remains more enigmatic. Recent work reveals that loss of DBP leads to smaller and hyperplastic alpha cells, which secrete less glucagon in response to low glucose concentration, despite vitamin D sufficiency. Alpha cells lacking DBP display impaired Ca2+ fluxes and Na+ conductance, as well as changes in glucagon granule distribution. Underlying these defects is an increase in the ratio of cytoskeletal F-actin to G-actin, highlighting a novel intracellular actin scavenging role for DBP in islets.
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Affiliation(s)
- Katrina Viloria
- Institute of Metabolism and Systems Research (IMSR), University of Birmingham, Birmingham, B15 2TT, UK.,Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, B15 2TT, UK.,Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK
| | - Martin Hewison
- Institute of Metabolism and Systems Research (IMSR), University of Birmingham, Birmingham, B15 2TT, UK.,Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, B15 2TT, UK
| | - David J Hodson
- Institute of Metabolism and Systems Research (IMSR), University of Birmingham, Birmingham, B15 2TT, UK.,Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, B15 2TT, UK.,Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham, Birmingham, UK
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Li Y, Wang J, Yang J, Chen J, Zhou W, Qiao C, Shen S, Bi Y. The correlation between vitamin D, glucose homeostasis and androgen level among polycystic ovary syndrome patients: a cross-sectional study. Gynecol Endocrinol 2021; 37:235-239. [PMID: 33576294 DOI: 10.1080/09513590.2020.1810228] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
MATERIAL AND METHODS A total of 290 women with PCOS participated in this cross-sectional study. Glucose homeostasis was assessed by a 75-g oral glucose tolerance test and the concentration of serum 25-hydroxy vitamin D was determined among all subjects. The homeostasis model assessment of insulin resistance (HOMA-IR) was taken as the indicator of insulin resistance. Beta cell function was estimated using the insulinogenic index and the disposition index. Free androgen index (FAI) was used to represent the androgen level. RESULTS In our study, 7.2% of the patients had Vit D severe deficiency, 75.2% had Vit D deficiency and 15.5% had vit D insufficiency. The level of serum 25(OH)D showed a significant positive association with insulinogenic index (r = 0.147, p < .05), disposition index (r = 0.280, p < .05), and SHBG (r = 0.178, p < .05) but exhibited a negative association with HOMA-IR (r = -0.198, p < .05), FAI (r = -0.178, p < .05). Adjusted age and BMI, 25(OH)D would be the dependent variable on disposition index [B = 0.259, 95%CI(0.041,0.477)] and FAI [B = -0.125, 95%CI(-0.232, -0.017)]. CONCLUSIONS According to our results, the low levels of serum 25(OH)D were common in women with PCOS, which was speculated to be associated with glucose homeostasis and the androgen level.
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Affiliation(s)
- Yikun Li
- Department of Endocrinology, Nanjing Drum Tower Hospital affiliated to Nanjing University Medical School, Nanjing, China
| | - Jing Wang
- Health Manager Center, Nanjing Drum Tower Hospital affiliated to Nanjing University Medical School, Nanjing, China
| | - Jiamiao Yang
- Department of Endocrinology, Nanjing Drum Tower Hospital affiliated to Nanjing University Medical School, Nanjing, China
| | - Jian Chen
- Department of Endocrinology, Nanjing Drum Tower Hospital affiliated to Nanjing University Medical School, Nanjing, China
| | - Wenting Zhou
- Department of Endocrinology, Nanjing Drum Tower Hospital affiliated to Nanjing University Medical School, Nanjing, China
| | - Chengcheng Qiao
- Department of Endocrinology, Nanjing Drum Tower Hospital affiliated to Nanjing University Medical School, Nanjing, China
| | - Shanmei Shen
- Department of Endocrinology, Nanjing Drum Tower Hospital affiliated to Nanjing University Medical School, Nanjing, China
| | - Yan Bi
- Department of Endocrinology, Nanjing Drum Tower Hospital affiliated to Nanjing University Medical School, Nanjing, China
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Mendoza-Garcés L, Velázquez-Alva MC, Cabrer-Rosales MF, Arrieta-Cruz I, Gutiérrez-Juárez R, Irigoyen-Camacho ME. Vitamin D Deficiency is Associated with Handgrip Strength, Nutritional Status and T2DM in Community-Dwelling Older Mexican Women: A Cross-Sectional Study. Nutrients 2021; 13:736. [PMID: 33652581 PMCID: PMC7996586 DOI: 10.3390/nu13030736] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/22/2021] [Accepted: 02/22/2021] [Indexed: 12/15/2022] Open
Abstract
The aim of this study was to evaluate the association between handgrip strength, nutritional status and vitamin D deficiency in Mexican community-dwelling older women. A cross sectional study in women ≥ 60 years-old was performed. Plasma 25-hydroxyvitamin D (25(OH)D) concentrations were measured by a quantitative immunoassay technique. Handgrip strength was assessed using a dynamometer, while nutritional status was assessed through the Full Mini Nutritional Assessment (Full-MNA). A total of 116 women participated in the study, their mean age was 70.3 ± 5.8 years; 49.1% of the study group had plasma 25(OH)D levels lower than 40 nmol/L [16 ng/mL]. Meanwhile, 28.45% of participants had low handgrip strength (<16 kg), and 23.1% were identified at risk of malnutrition/malnourished according with Full-MNA score. Women with 25(OH)D deficiency (<40 nmol/L [16 ng/mL]) were more likely to have low handgrip strength (OR = 2.64, p = 0.025) compared with those with higher 25(OH)D values. Additionally, being malnourished or at risk of malnutrition (OR = 2.53, p = 0.045) or having type 2 diabetes mellitus (T2DM) (OR = 2.92, p = 0.044) was also associated with low 25(OH)D. The prevalence of low plasma 25(OH)D concentrations was high among Mexican active older women. Low handgrip strength, being at risk of malnutrition/malnourished, or diagnosed with T2DM was also associated with Vitamin D deficiency.
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Affiliation(s)
| | - María Consuelo Velázquez-Alva
- Health Care Department, Metropolitan Autonomous University, Unit Xochimilco, Mexico City 04960, Mexico; (M.C.V.-A.); (M.F.C.-R.)
| | - María Fernanda Cabrer-Rosales
- Health Care Department, Metropolitan Autonomous University, Unit Xochimilco, Mexico City 04960, Mexico; (M.C.V.-A.); (M.F.C.-R.)
| | - Isabel Arrieta-Cruz
- National Institute of Geriatrics, Ministry of Health, Mexico City 10200, Mexico;
| | - Roger Gutiérrez-Juárez
- Department of Biomedical Sciences, School of Medicine, Faculty of Higher Studies Zaragoza, National Autonomous University of Mexico, Mexico City 09230, Mexico;
| | - María Esther Irigoyen-Camacho
- Health Care Department, Metropolitan Autonomous University, Unit Xochimilco, Mexico City 04960, Mexico; (M.C.V.-A.); (M.F.C.-R.)
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Zakaria WNA, Mohd Yunus N, Yaacob NM, Omar J, Wan Mohamed WMI, Sirajudeen KNS, Tuan Ismail TS. Association between Vitamin D Receptor Polymorphisms (BsmI and FokI) and Glycemic Control among Patients with Type 2 Diabetes. Int J Environ Res Public Health 2021; 18:1595. [PMID: 33567588 PMCID: PMC7914454 DOI: 10.3390/ijerph18041595] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 01/27/2021] [Accepted: 02/02/2021] [Indexed: 02/05/2023]
Abstract
(1) Background: Several studies have suggested that the vitamin D receptor (VDR) gene plays a role in type 2 diabetes mellitus (T2DM) susceptibility. Nonetheless, the association between T2DM and VDR polymorphisms remains inconclusive. We determined the genotype of VDR rs1544410 (BsmI) and rs2228570 (FokI) polymorphisms among Malaysian patients with T2DM and their association with glycemic control factors (vitamin D levels, calcium, magnesium, and phosphate). (2) Methods: A total of 189 participants comprising 126 patients with T2DM (63 with good glycemic control and 63 with poor glycemic control) and 63 healthy controls were enrolled in this case-control study. All biochemical assays were measured using spectrophotometric analysis. VDR gene FokI and BsmI polymorphisms were analyzed using polymerase chain reaction and endonuclease digestion. (3) Results: Our findings revealed no significant differences in VDR FokI and BsmI genotypes between participants with T2DM and healthy controls. Moreover, no significant association was observed between both single nucleotide polymorphisms and glycemic control factors. Participants with poor glycemic control had significantly lower serum magnesium levels and significantly higher HOMA-IR compared to the other groups. (4) Conclusions: The present study revealed that VDR gene BsmI and FokI polymorphisms were not significantly associated with T2DM.
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Affiliation(s)
- Wan Nur Amalina Zakaria
- Human Genome Centre, School of Medical Sciences, Universiti Sains Malaysia Health Campus, Kota Bharu 16150, Malaysia; (W.N.A.Z.); (N.M.Y.)
| | - Nazihah Mohd Yunus
- Human Genome Centre, School of Medical Sciences, Universiti Sains Malaysia Health Campus, Kota Bharu 16150, Malaysia; (W.N.A.Z.); (N.M.Y.)
| | - Najib Majdi Yaacob
- Unit of Biostatistics and Research Methodology, School of Medical Sciences, Universiti Sains Malaysia Health Campus, Kota Bharu 16150, Malaysia;
| | - Julia Omar
- Department of Chemical Pathology, School of Medical Sciences, Universiti Sains Malaysia Health Campus, Kota Bharu 16150, Malaysia;
| | - Wan Mohd Izani Wan Mohamed
- Department of Medicine, School of Medical Sciences, Universiti Sains Malaysia Health Campus, Kota Bharu 16150, Malaysia;
| | - K. N. S. Sirajudeen
- Department of Basic Medical Sciences, Kuliyyah of Medicine, International Islamic University Malaysia, Bandar Indera Mahkota, Kuantan 25200, Malaysia;
| | - Tuan Salwani Tuan Ismail
- Department of Chemical Pathology, School of Medical Sciences, Universiti Sains Malaysia Health Campus, Kota Bharu 16150, Malaysia;
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Hong SH, Kim YB, Choi HS, Jeong TD, Kim JT, Sung YA. Association of Vitamin D Deficiency with Diabetic Nephropathy. Endocrinol Metab (Seoul) 2021; 36:106-113. [PMID: 33677932 PMCID: PMC7937857 DOI: 10.3803/enm.2020.826] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 12/10/2020] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Low 25-hydroxyvitamin D (25OHD) levels are associated with the incidence of type 2 diabetes mellitus (T2DM). However, the association between 25OHD and metabolic health status or diabetic complications is inconclusive. We evaluated this relationship between vitamin D status and metabolic parameters and complications of T2DM. METHODS This study included 1,392 patients with T2DM who visited Eulji and Ewha Diabetes Center between January 2011 and August 2016. Anthropometric parameters and laboratory tests including glycated hemoglobin (HbA1c), lipid profile, liver and kidney function, and urinary albumin-to-creatinine ratio (UACR) were evaluated. Diabetic macro- and microvascular complications were determined through a medical record review. Serum 25OHD concentrations were measured by chemiluminescent immunoassay. RESULTS The mean 25OHD level was 16.8±9.6 ng/mL. Vitamin D deficiency (<20 ng/mL) and severe deficiency (<10 ng/mL) were observed in 990 (71.1%) and 351 (25.2%) participants, respectively. 25OHD level was positively correlated with age and highdensity lipoprotein cholesterol (HDL-C) level and negatively correlated with HbA1c, triglyceride level, and UACR. HDL-C and UACR were significantly associated with 25OHD after adjusting for other variables. Vitamin D deficiency was independently related to nephropathy after adjusting for confounding variables. CONCLUSION Vitamin D deficiency was common among Korean T2DM patients; it was independently associated with microalbuminuria and HDL level, and positively related to diabetic nephropathy.
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Affiliation(s)
- So-hyeon Hong
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Ewha Womans University School of Medicine, Seoul, Korea
| | - Young Bin Kim
- Department of Internal Medicine, Nowon Eulji Medical Center, Eulji University School of Medicine, Seoul, Korea
| | - Hoon Sung Choi
- Department of Internal Medicine, Kangwon National University School of Medicine, Chuncheon, Korea
| | - Tae-Dong Jeong
- Department of Laboratory Medicine, Ewha Womans University School of Medicine, Seoul, Korea
| | - Jin Taek Kim
- Department of Internal Medicine, Nowon Eulji Medical Center, Eulji University School of Medicine, Seoul, Korea
| | - Yeon Ah Sung
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Ewha Womans University School of Medicine, Seoul, Korea
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Abstract
Type 1 diabetes has an increasingly greater incidence and prevalence with no cure available. Vitamin D supplementation is well documented to reduce the risk of developing type 1 diabetes. Being involved in the modulation of cathelicidin expression, the question whether cathelicidin may be one of the underlying cause arises. Cathelicidin has been implicated in both the development and the protection against type 1 diabetes by mediating the interplay between the gut microbiome, the immune system and β cell function. While its potential on type 1 diabetes treatment seems high, the understanding of its effects is still limited. This review aims to contribute to a more comprehensive understanding of the potential of vitamin D and cathelicidin as adjuvants in type 1 diabetes therapy.
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Affiliation(s)
- Cecília Cristelo
- i3S – Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- CEB – Centro de Engenharia Biológica, Universidade do Minho, Braga, Portugal
| | - Alexandra Machado
- CEB – Centro de Engenharia Biológica, Universidade do Minho, Braga, Portugal
| | - Bruno Sarmento
- i3S – Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde & Instituto Universitário de Ciências da Saúde, Gandra, Portugal
| | - Francisco Miguel Gama
- CEB – Centro de Engenharia Biológica, Universidade do Minho, Braga, Portugal
- Correspondence should be addressed to F M Gama:
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de Albuquerque Borborema ME, Oliveira DC, de Azevêdo Silva J. Down regulation of VDR gene expression in metabolic syndrome and atherosclerosis' patients: Cause or consequence? Gene 2020; 771:145341. [PMID: 33333229 DOI: 10.1016/j.gene.2020.145341] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 10/28/2020] [Accepted: 12/01/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND Metabolic syndrome (MS) features a set of clinical manifestations with an increased risk of atherosclerosis development. Vitamin D3 (VD3) pathway influences upon clinical features in MS as well in the formation of atherosclerotic plaque. VD3 acts through the vitamin D receptor (VDR), regulating the transcription of several genes involved in the immune response, growth and homeostasis. AIM To evaluate whether VDR mRNA levels vary in MS patients according clinical features and atherosclerosis severity. METHODS We included eighty individuals distributed into four groups: 1 group with MS (n = 20), 2 groups with atherosclerosis based on the report from the angiography (severe lesions - SL and primary lesions - PL) and 1 group enclosing healthy individuals (HC). The expression assays of VDR gene was performed using Real Time qPCR, with specific Taqman probes. We applied the Shapiro-Wilk, Chi-Squared and Student's T-tests for statistical analyses considering as statistically significant p < 0.05. RESULTS Patients with MS as well with coronary stenosis present a down-regulation of VDR gene expression (-9.01 FC, p = 2.497 × 10-13; -13.62 FC, p = 7.489 × 10-13, respectively) when compared to control group. We also evaluated the VDR gene expression according to atherosclerosis severity, SL and PL patients present a downregulation of -31.51 FC and -8.48 FC, respectively, when compared with healthy controls group (p = 1.369 × 10-11; p = 1.647 × 10-11). When compared different degrees of atherosclerosis severity (SL versus PL) SL present a downregulation of -3.71 FC, when compared to PL group (p = 0.006). CONCLUSION VDR is downregulated in patients with MS and according atherosclerosis severity. The differential expression of this gene is related to this hormone functions being an ex-vivo gene target for assessment in MS and atherosclerosis.
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Affiliation(s)
- Maria Eduarda de Albuquerque Borborema
- Laboratório de Genética e Biologia Molecular Humana, Departamento de Genética, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil; Laboratório de Imunopatologia Keizo Asami (LIKA), Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | - Dinaldo C Oliveira
- Divisão de Cardiologia, Departamento de Clínica Médica, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | - Jaqueline de Azevêdo Silva
- Laboratório de Genética e Biologia Molecular Humana, Departamento de Genética, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil; Laboratório de Imunopatologia Keizo Asami (LIKA), Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil.
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Pittas AG, Jorde R, Kawahara T, Dawson-Hughes B. Vitamin D Supplementation for Prevention of Type 2 Diabetes Mellitus: To D or Not to D? J Clin Endocrinol Metab 2020; 105:5897217. [PMID: 32844212 PMCID: PMC7571449 DOI: 10.1210/clinem/dgaa594] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 08/24/2020] [Indexed: 12/16/2022]
Abstract
CONTEXT Over the last decade, vitamin D has emerged as a risk determinant for type 2 diabetes and vitamin D supplementation has been hypothesized as a potential intervention to lower diabetes risk. Recently, several trials have reported on the effect of vitamin D supplementation on diabetes prevention in people with prediabetes. EVIDENCE ACQUISITION A comprehensive literature review was performed using PubMed, Embase, and ClinicalTrials.gov to identify: (1) recent meta-analyses of longitudinal observational studies that report on the association between blood 25-hydroxyvitamin D (25[OH]D) level and incident diabetes, and (2) clinical trials of adults with prediabetes that have reported on the effect of vitamin D supplementation on incident diabetes. EVIDENCE SYNTHESIS Longitudinal observational studies report highly consistent associations between higher blood 25(OH)D levels and a lower risk of incident diabetes in diverse populations, including populations with prediabetes. Trials in persons with prediabetes show risk reduction in incident diabetes with vitamin D supplementation. In the 3 large trials that were specifically designed and conducted for the prevention of diabetes, vitamin D supplementation, when compared with placebo, reduced the risk of developing diabetes by 10% to 13% in persons with prediabetes not selected for vitamin D deficiency. CONCLUSIONS Results from recent trials are congruent with a large body of evidence from observational studies indicating that vitamin D has a role in modulating diabetes risk. Participant-level meta-analysis of the 3 largest trials should provide a more refined estimate of risk reduction and identify patient populations that are likely to benefit the most from vitamin D supplementation.
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Affiliation(s)
- Anastassios G Pittas
- Division of Endocrinology, Diabetes and Metabolism, Tufts Medical Center, Boston, Massachusetts
- Correspondence and Reprint Requests: Anastassios G. Pittas, MD, MS, Division of Endocrinology, Diabetes and Metabolism, Tufts Medical Center, 800 Washington Street, Box 268, Boston, MA 02111, USA. E-mail:
| | - Rolf Jorde
- Institute of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway
| | - Tetsuya Kawahara
- Division of Internal Medicine, Kokura Medical Association Health Testing Center, Kitakyushu, Japan
| | - Bess Dawson-Hughes
- Division of Endocrinology, Diabetes and Metabolism, Tufts Medical Center, Boston, Massachusetts
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Al-Shafei AI, Rayis DA, Mohieldein AH, El-Gendy OA, Adam I. Maternal early pregnancy serum level of 25-Hydroxyvitamin D and risk of gestational diabetes mellitus. Int J Gynaecol Obstet 2020; 152:382-385. [PMID: 32976628 DOI: 10.1002/ijgo.13389] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 07/15/2020] [Accepted: 09/18/2020] [Indexed: 12/17/2022]
Abstract
OBJECTIVE To assess if early pregnancy (≤14 weeks of gestation) 25-hydroxyvitamin D (25(OH)D) level is associated with risk of gestational diabetes mellitus (GDM). METHODS A nested case-control study (60 women in each arm) was conducted at Saad Abualila Hospital (Khartoum, Sudan) during the period of January to November 2017. Clinical and obstetrical data were gathered, 25(OH)D concentration was measured at the first prenatal visit, and a 75-g oral glucose tolerance test was performed at 24-28 weeks of gestation. RESULTS Compared with women without GDM, in women with GDM, the median of the 25(OH)D level was significantly lower (7.3 [interquartile range 5.7-8.8] ng/mL versus 8.4 [interquartile range 6.6-11.9] ng/mL, P=0.001). All women in the study (with and without GDM) had vitamin D deficiency (25(OH)D<20 ng/mL). The results of the logistic regression showed that a low 25(OH)D level was the only factor associated with GDM (odds ratio [OR] 0.83, 95% confidence interval [CI] 0.73-0.95, P=0.010). Women with 25(OH)D less than 6.0 ng/mL were at a higher risk of GDM (OR 3.2, 95% CI 1.29-8.12, P=0.012). CONCLUSION A low 25(OH)D level in early pregnancy was associated with increased risk of GDM. This finding might be useful in predicting GDM.
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Affiliation(s)
- Ahmad I Al-Shafei
- Unaizah College of Medicine and Medical Sciences, Qassim University, Unaizah, Kingdom of Saudi Arabia
| | - Duria A Rayis
- Faculty of Medicine, University of Khartoum, Khartoum, Sudan
| | | | - Ola A El-Gendy
- Unaizah College of Medicine and Medical Sciences, Qassim University, Unaizah, Kingdom of Saudi Arabia
| | - Ishag Adam
- Department of Obstetrics and Gynecology, Unaizah College of Medicine and Medical Sciences, Qassim University, Unaizah, Saudi Arabia
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Prabhakar O, Bhuvaneswari M. Role of diet and lifestyle modification in the management of nonalcoholic fatty liver disease and type 2 diabetes. Tzu Chi Med J 2020; 33:135-145. [PMID: 33912410 PMCID: PMC8059462 DOI: 10.4103/tcmj.tcmj_86_20] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/11/2020] [Accepted: 06/08/2020] [Indexed: 12/15/2022] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is considered as the hepatic evidence of insulin resistance which is the hallmark of type 2 diabetes. NAFLD is considered as the risk factor for developing type 2 diabetes and has a high frequency of occurrence in those with existing type 2 diabetes. Compared with patients with only NAFLD or type 2 diabetes, these patients show a poor metabolic profile and increase mortality. Hence, effective treatment strategies are necessary. Here, we review the role of diet and lifestyle modification in the management of NAFLD and type 2 diabetes. Based on the available studies, it has been shown that the addition of any kind of physical activity or exercise is beneficial for patients with both NAFLD and type 2 diabetes. Proper dietary management leads to weight loss are also effective in improving metabolic parameters in patients with both NAFLD and type 2 diabetes. In conclusion, it is clear that increasing physical activity or exercise is effective in improving metabolic parameters in patients who are suffering with both NAFLD and type 2 diabetes.
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Affiliation(s)
- Orsu Prabhakar
- Department of Pharmacology, GITAM Institute of Pharmacy, Visakhapatnam, Andhra Pradesh, India
| | - Mylipilli Bhuvaneswari
- Department of Pharmacology, GITAM Institute of Pharmacy, Visakhapatnam, Andhra Pradesh, India
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Szymczak-Pajor I, Drzewoski J, Śliwińska A. The Molecular Mechanisms by Which Vitamin D Prevents Insulin Resistance and Associated Disorders. Int J Mol Sci 2020; 21:E6644. [PMID: 32932777 DOI: 10.3390/ijms21186644] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 09/07/2020] [Accepted: 09/09/2020] [Indexed: 02/06/2023] Open
Abstract
Numerous studies have shown that vitamin D deficiency is very common in modern societies and is perceived as an important risk factor in the development of insulin resistance and related diseases such as obesity and type 2 diabetes (T2DM). While it is generally accepted that vitamin D is a regulator of bone homeostasis, its ability to counteract insulin resistance is subject to debate. The goal of this communication is to review the molecular mechanism by which vitamin D reduces insulin resistance and related complications. The university library, PUBMED, and Google Scholar were searched to find relevant studies to be summarized in this review article. Insulin resistance is accompanied by chronic hyperglycaemia and inflammation. Recent studies have shown that vitamin D exhibits indirect antioxidative properties and participates in the maintenance of normal resting ROS level. Appealingly, vitamin D reduces inflammation and regulates Ca2+ level in many cell types. Therefore, the beneficial actions of vitamin D include diminished insulin resistance which is observed as an improvement of glucose and lipid metabolism in insulin-sensitive tissues.
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Totonchi H, Rezaei R, Noori S, Azarpira N, Mokarram P, Imani D. Vitamin D Receptor Gene Polymorphisms and the Risk of Metabolic Syndrome (MetS): A Meta-Analysis. Endocr Metab Immune Disord Drug Targets 2020; 21:943-955. [PMID: 32767922 DOI: 10.2174/1871530320666200805101302] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 05/09/2020] [Accepted: 06/24/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Several studies have assessed the association between the vitamin D receptor (VDR) polymorphism and the risk of metabolic syndrome (MetS). However, the results were inconsistent and inconclusive. Therefore, we conducted a meta-analysis to clarify the exact association between the vitamin D receptor (VDR) polymorphisms and the risk of MetS. METHODS All accessible studies reporting the association between the FokI (rs2228570) or/and TaqI (rs731236) or/and BsmI (rs1544410) or/and ApaI (rs7975232 polymorphisms of the Vitamin D Receptor and susceptibility to MetS published prior to February 2019 were systematically searched in Web of Science, Scopus, and PubMed. After that, Odds ratios (ORs) and their corresponding 95% confidence intervals (CIs) were estimated to evaluate the strength of the association in five genetic models. RESULTS A total of 9 articles based on four gene variations, and comprising 3348 participants with 1779 metabolic syndrome patients were included. The overall results suggested a significant association between BsmI (rs1544410) polymorphism and MetS susceptibility in recessive model (OR, 0.72, 95% CI, 0.55-0.95, fixed effect model), allelic model (OR, 0.83, 95% CI, 0.72-0.95, fixed effect model), and bb vs BB (OR, 0.65, 95% CI, 0.46-0.93, fixed effect). However, no significant association was identified between TaqI (rs731236) polymorphism, ApaI (rs7975232) polymorphism, and FokI (rs2228570) polymorphism and MetS. CONCLUSION This meta-analysis suggested an association between the BsmI (rs1544410) polymorphism and MetS. Indeed, BsmI (rs1544410) acts as a protective factor in the MetS. As a result, the VDR gene could be regarded as a promising pharmacological and physiological target in the prevention or treatment of the MetS.
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Affiliation(s)
- Hamidreza Totonchi
- Department of Clinical Biochemistry, School of Medicine, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Ramazan Rezaei
- Department of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shokoofe Noori
- Department of Clinical Biochemistry, School of Medicine, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Negar Azarpira
- Shiraz Transplant Research Center, Namazi Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Pooneh Mokarram
- Autophagy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Danyal Imani
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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El Hajj C, Walrand S, Helou M, Yammine K. Effect of Vitamin D Supplementation on Inflammatory Markers in Non-Obese Lebanese Patients with Type 2 Diabetes: A Randomized Controlled Trial. Nutrients 2020; 12:E2033. [PMID: 32659891 DOI: 10.3390/nu12072033] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 07/03/2020] [Accepted: 07/07/2020] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND A low serum 25-hydroxyvitamin D (25(OH) D) concentration has been associated with a higher risk of type 2 diabetes mellitus (T2DM), especially in older people. Our aim in this randomized controlled trial was to evaluate the effect of vitamin D treatment on inflammatory markers in non-obese Lebanese patients with T2DM, living in Beirut, Lebanon. METHODS Non-Obese patients with T2DM (n = 88), deficient/insufficient in vitamin D, were randomly assigned into one of two groups-a treatment group receiving 30,000 IU cholecalciferol/week for a period of six months, and a placebo group. Serum concentrations of TNF-α, high-sensitivity C-reactive protein (hs-CRP), and Interleukin-6 (IL-6) were the primary outcomes. A homeostatic model of insulin resistance (HOMA-IR) was assessed, in addition to serum concentrations of fasting blood glucose (FBG), HbA1C, (25(OH) D), and PTH. RESULTS The vitamin D group showed higher blood levels of (25(OH) D) (p < 0.0001), and a significant reduction in hs-CRP and TNF-α concentrations (p < 0.0001) compared to placebo. The decrease perceived in IL-6 concentrations was not significant (p = 0.1). No significant changes were seen in FBG (p = 0.9) and HbA1c levels (p = 0.85). CONCLUSION Six months of vitamin D supplementation led to a decrease in some inflammatory markers in patients with T2DM. Additional studies with a larger sample and a longer period are advised in this regard. This trial was registered at ClinicalTrial.gov; Identifier number: NCT03782805.
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Sonuga AA, Sonuga OO. Hypovitaminosis D Is Associated with Some Metabolic Indices in Gestational Diabetes Mellitus. Biomed Hub 2020; 5:1177-1190. [PMID: 32884931 DOI: 10.1159/000508207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 04/25/2020] [Indexed: 12/16/2022] Open
Abstract
Background Gestational diabetes mellitus (GDM), a pregnancy complication, is defined as any degree of glucose intolerance with onset or first recognition during pregnancy. Vitamin D deficiency and insufficiency has recently been recognized as a contributing factor to the pathogenesis of GDM, and this link might be associated with hyperglycemia, insulin resistance, and inflammation, which are implicated in GDM. Objectives This study aims at investigating the relationship between vitamin D, fasting plasma glucose (FPG), insulin, zinc, ferritin, and high-sensitivity C-reactive protein (CRP) in GDM. Method A case-control study in which 80 women attending the antenatal clinic of University College Hospital (UCH), Ibadan, Nigeria, were recruited; the women were grouped into controls (40 nondiabetic pregnant women) and cases (40 pregnant women with GDM). Blood samples were taken at the second trimester, and metabolites were quantified by standard laboratory methods. Student's t test and Pearson correlation were used to compare variables and determine the relationship between variables, respectively. Results Results showed significant (p < 0.05) low levels of serum vitamin D and zinc, and significant (p < 0.05) higher levels of FPG and serum insulin, ferritin, and CRP in the GDM group compared to the control group. In the GDM group, a positive weak relationship was observed between vitamin D and zinc (r = 0.18, p < 0.05), while vitamin D was inversely correlated with FPG, serum insulin, ferritin, and CRP (r = -0.23, -0.21, -0.20, -0.46, respectively, p < 0.05). Conclusion This study suggests that hypovitaminosis D might be associated with glucose intolerance, insulin insensitivity, and inflammation, which are factors implicated in the development and progression of GDM.
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Affiliation(s)
- Ayobola Abimbola Sonuga
- Department of Biochemistry, Lead City University, Ibadan, Nigeria.,Chemical Pathology Department, University College Hospital, Ibadan, Nigeria
| | - Oyebola Oluwagbemiga Sonuga
- Department of Biochemistry, Lead City University, Ibadan, Nigeria.,Chemical Pathology Department, University College Hospital, Ibadan, Nigeria
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50
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Zhang Y, Tan H, Tang J, Li J, Chong W, Hai Y, Feng Y, Lunsford LD, Xu P, Jia D, Fang F. Effects of Vitamin D Supplementation on Prevention of Type 2 Diabetes in Patients With Prediabetes: A Systematic Review and Meta-analysis. Diabetes Care 2020; 43:1650-1658. [PMID: 33534730 DOI: 10.2337/dc19-1708] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Accepted: 02/19/2020] [Indexed: 02/05/2023]
Abstract
BACKGROUND While observational studies have shown an association between vitamin D insufficiency and diabetes, it is unclear whether intervention with vitamin D supplements can lower the risk of type 2 diabetes mellitus (T2DM). PURPOSE To assess whether vitamin D supplementation reduces the risk of T2DM in people with prediabetes. DATA SOURCES We searched MEDLINE, Embase, and Cochrane Central Register of Controlled Trials (CENTRAL) from inception to 5 July 2019. STUDY SELECTION We included randomized controlled trials assessing vitamin D supplementation versus placebo in relation to new-onset T2DM in people with prediabetes. DATA EXTRACTION We screened studies and extracted data from published trials independently. DATA SYNTHESIS We identified eight eligible trials with a total of 4,896 subjects. Vitamin D supplementation significantly reduced the risk of T2DM (risk ratio [RR] 0.89 [95% CI 0.80-0.99]; I 2 = 0%). Benefit was found in nonobese subjects (RR 0.73 [95% CI 0.57-0.92]) but not in obese subjects (RR 0.95 [95% CI 0.84-1.08]) (P interaction = 0.048). The reversion of prediabetes to normoglycemia occurred in 116 of 548 (21.2%) participants in the vitamin D group and 75 of 532 (14.1%) in the control group. Vitamin D supplementation increased reversion rate of prediabetes to normoglycemia (RR 1.48 [95% CI 1.14-1.92]; I 2 = 0%.) LIMITATIONS: Definitions of prediabetes and new-onset diabetes in eligible studies were different, and long-term data on outcomes of T2DM prevention were lacking. CONCLUSIONS In persons with prediabetes, vitamin D supplementation reduces the risk of T2DM and increases the reversion rate of prediabetes to normoglycemia. The benefit of the prevention of T2DM could be limited to nonobese subjects. Individual participant data meta-analyses are needed to confirm these findings.
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Affiliation(s)
- Yu Zhang
- West China Hospital, Sichuan University, Chengdu, Sichuan, China.,Affiliated Hospital of Chengdu University, Chengdu, Sichuan, China
| | - Huiwen Tan
- West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Jingjing Tang
- Chinese University of Hong Kong, Shenzhen, Guangdong, China
| | - Jing Li
- West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Weelic Chong
- Department of Medical Oncology, Thomas Jefferson University, Philadelphia, PA
| | - Yang Hai
- Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA
| | - Yuning Feng
- Affiliated Hospital of Chengdu University, Chengdu, Sichuan, China
| | - L Dade Lunsford
- University of Pittsburgh Medical Center, University of Pittsburgh, Pittsburgh, PA
| | - Ping Xu
- Sichuan University Library, Sichuan University, Chengdu, Sichuan, China
| | - Desheng Jia
- West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Fang Fang
- West China Hospital, Sichuan University, Chengdu, Sichuan, China
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