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Aghasizadeh M, Ghanei M, Ghoflchi S, Asadian-Sohan P, Haghani M, Kazemi T, Esmaily H, Avan A, Ferns GA, Miri-Moghaddam E, Ghayour-Mobarhan M. Association of Genotypes of ANGPTL3 with Vitamin D and Calcium Concentration in Cardiovascular Disease. Biochem Genet 2024; 62:2482-2494. [PMID: 37955843 DOI: 10.1007/s10528-023-10533-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 09/18/2023] [Indexed: 11/14/2023]
Abstract
One of the leading causes of mortality worldwide is cardiovascular disease, which is influenced by some variables, including calcium and vitamin D. This study aimed to assess the relationship between Angiopoietin-Like 3 (ANGPTL3) gene polymorphisms with vitamin D and calcium levels in cardiovascular disease (CVD) patients. In this research, 1002 people participated. Participants' anthropometric parameters, and FBG, calcium, and vitamin D were assessed. Blood samples were used to extract DNA. Taqman®-based polymerase chain reaction (PCR) was used to conduct genetic analysis for the rs10789117 and rs17458195. Statistical analysis was applied to determine differences across subgroups and the relationship between polymorphisms and disease. Age, body mass index (BMI), fasting Blood Sugar (FBG), phenylalanine ammonia-lyase (PAL), and smoking history were significantly correlated with CVD. Vitamin D was statistically associated with rs10789117 and rs17458195 in non-CVD individuals. In the moderate group, individuals with the C allele in rs10789117 showed a tenfold increase in vitamin D deficiency compared to those with the A allele. However, in rs11207997, individuals with the T allele had 5 to 6 times higher vitamin D deficiency than those with the C allele in all groups. This research demonstrates the relationship between some ANGPTL3 gene polymorphisms and complement levels in CVD patients. It may be concluded that individuals carrying these variants would likely benefit from using vitamin D and calcium supplements to avoid CVD.
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Affiliation(s)
- Malihe Aghasizadeh
- International UNESCO Center for Health-Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahmoud Ghanei
- Medical Genetics and Molecular Medicine Department, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sahar Ghoflchi
- International UNESCO Center for Health-Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Parisa Asadian-Sohan
- International UNESCO Center for Health-Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Haghani
- International UNESCO Center for Health-Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Tooba Kazemi
- Cardiovascular Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran
- Razi Clinical Research Development Unit, Faculty of Medicine Birjand University of Medical Sciences, Birjand, Iran
| | - Habibollah Esmaily
- Social Determinants of Health Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Biostatistics, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amir Avan
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Gordon A Ferns
- Division of Medical Education, Brighton & Sussex Medical School, Falmer, Brighton, Sussex, BN19PH, UK
| | - Ebrahim Miri-Moghaddam
- Cardiovascular Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran.
| | - Majid Ghayour-Mobarhan
- International UNESCO Center for Health-Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran.
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Eilat-Adar S, Kassem E, Sindiani M, Ben-Zaken S. IGF1 Genetic Polymorphism and the Association between Vitamin D Status and BMI Percentiles in Children. CHILDREN (BASEL, SWITZERLAND) 2023; 10:1610. [PMID: 37892272 PMCID: PMC10605625 DOI: 10.3390/children10101610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 08/07/2023] [Accepted: 08/08/2023] [Indexed: 10/29/2023]
Abstract
Both the IGF1 axis and hypovitaminosis D play a role in childhood obesity, either as a cause or a causality. While some studies suggest an interrelation between vitamin D status, IGF1, and obesity, this mechanism remains obscure. The aim of this study, therefore, was to explore associations between four genetic polymorphisms in the IGF1 axis in hypovitaminosis D-related obesity. The study included 116 pre-pubertal Israeli Arab children (52 girls), mean age 9.4 ± 2.6. Serum 25(OH)D was measured and anthropometric measures were obtained. Genomic DNA was extracted from peripheral EDTA-treated anti-coagulated blood using a standard protocol. Genotypes were determined using the Taqman allelic discrimination assay. The IGF genetic score was computed according to the additive genetic score model. A moderate-to-high negative correlation (r = 0.580, p < 0.05) was seen between the vitamin D status and body mass index (BMI) percentile of participants with high GS. Yet, no correlations were seen between vitamin D status and BMI percentile for participants with a low-to-moderate genetic score (GS) (GS ≤ 2). These results suggest that IGF1 genetic scores associated with elevated circulating IGF1 may indicate a tendency toward developing hypovitaminosis D-associated obesity.
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Affiliation(s)
- Sigal Eilat-Adar
- Levinsky-Wingate Academic College, Wingate Campus, Netanya 4290200, Israel (S.B.-Z.)
| | - Eias Kassem
- Hillel-Yaffe Medical Center, Hadera 3810000, Israel;
| | - Mahmood Sindiani
- Levinsky-Wingate Academic College, Wingate Campus, Netanya 4290200, Israel (S.B.-Z.)
| | - Sigal Ben-Zaken
- Levinsky-Wingate Academic College, Wingate Campus, Netanya 4290200, Israel (S.B.-Z.)
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Zhao L, Wang W, Wang X, Zhang D, Li X, Zhao Y, Zhang Y, Xu D, Cheng J, Wang J, Li W, Lin C, Wu W, Zhang X, Zheng W. Identification of SNPs and expression patterns of ALB, AHSG and GC genes and their association with growth traits in Hu sheep. Gene 2023; 853:147100. [PMID: 36470483 DOI: 10.1016/j.gene.2022.147100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 10/20/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022]
Abstract
Growth traits are economically important traits in sheep breeding. This study was conducted to evaluate the polymorphisms of ALB, AHSG and GC genes and their association with growth traits in Hu sheep. We measured and recorded the body weight (BW), body height (BH), body length (BL) and feed conversion ratio (FCR) of 1418 male Hu sheep raised in the same environment from 80 to 180 days of age. The total of four SNPs in the ALB, AHSG and GC genes were identified by direct sequencing technology. The results of association analysis showed that two loci (g.8699 A>T and g.13458 T>C) of ALB gene significantly affect average daily gain (ADG; P < 0.05). The genotypes of SNP g.2454 T>C in AHSG gene were significantly associated with ADG and FCR (P < 0.05). There were significant associations between GC g.19484 A>C and BW, BH and BL (P < 0.05). The results of qRT-PCR showed that ALB, AHSG, and GC genes were extremely significantly higher in H_BW sheep compared with those in the L_BW sheep (P < 0.01). These results revealed that ALB-1 g.8699 A>T, ALB-2 g.13458 T>C, AHSG g.2454 T>C and GC g.19484 A>C loci are potential molecular markers for Hu sheep breeding.
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Affiliation(s)
- Liming Zhao
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Weimin Wang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China; The State Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou Gansu 730020, China
| | - Xiaojuan Wang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Deyin Zhang
- The State Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou Gansu 730020, China
| | - Xiaolong Li
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Yuan Zhao
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Yukun Zhang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Dan Xu
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Jiangbo Cheng
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Jianghui Wang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Wenxin Li
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Changchun Lin
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Weiwei Wu
- Institute of Animal Science, Xinjiang Academy of Animal Sciences, Urumqi, Xinjiang 830000, China
| | - Xiaoxue Zhang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China.
| | - Wenxin Zheng
- Institute of Animal Husbandry Quality Standards, Xinjiang Academy of Animal Sciences, Urumqi, Xinjiang 830000, China.
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Luo LM, Wu N, Zhang J, Yang D. Maternal vitamin D levels correlate with fetal weight and bone metabolism during pregnancy: a materno-neonatal analysis of bone metabolism parameters. J Perinat Med 2022; 51:538-545. [PMID: 36435526 DOI: 10.1515/jpm-2022-0068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 10/01/2022] [Indexed: 11/28/2022]
Abstract
OBJECTIVES Vitamin D plays an essential role in neonatal skeletal development and maternal weight gain during pregnancy. We aim to study the association between vitamin D status, maternal weight, and materno-neonatal bone metabolism parameters. METHODS From January to June 2017, we conducted this cross-sectional study among 103 pregnant women (21-42 years old) and their singletons. The levels of serum 25-(OH)D, PTH, P1NP, OC, and CTX were measured for mothers and neonates (cord blood). Serum vitamin D and OC were measured using chemiluminescence and two-site immunoradiometric assay, respectively. Meanwhile, P1NP, CTX, and PTH were measured by ELISA. RESULTS The average serum vitamin D levels from mothers were 15.1 ng/mL during pregnancy and 16.2 ng/mL in the umbilical cord. At baseline, vitamin D deficient mothers were more likely to have higher PTH (36.4 vs. 18 pg/mL; p=0.029) and lower P1NP levels (90 vs. 92.5 ng/mL; p=0.026). Also, vitamin D deficient status was associated with lower fetal weight (3,293 vs. 3,358 g; p=0.019). Maternal weight was significantly correlated with P1NP (65.86 vs. 109.35; p=0.001) and OC (14.52 vs. 18.24; p=0.038), as well as cord vitamin D level (13.31 vs. 18.46; p=0.039) among normal vs. overweight women. No significant differences were found for the correlation between maternal weight and fetal parameters except for fetal weight which significantly increased with the increase in maternal weight (overweight vs. obese women=3,280 vs. 3,560; p=0.06). CONCLUSIONS Maternal vitamin D status is associated with maternal and neonatal bone metabolism parameters as well as maternal and neonatal weight.
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Affiliation(s)
- Lian-Mei Luo
- Department of Obstetrics and Gynecology, Beijing Anzhen Hospital, Capital Medical University, Beijing, P. R. China
| | - Nan Wu
- Xuan Wu Hospital, Capital Medical University, Beijing, P. R. China
| | - Jun Zhang
- Department of Obstetrics and Gynecology, Beijing Anzhen Hospital, Capital Medical University, Beijing, P. R. China
| | - Dong Yang
- Department of Obstetrics and Gynecology, Beijing Anzhen Hospital, Capital Medical University, Beijing, P. R. China
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A High Dose, Not Low Dose, of Vitamin D Ameliorates Insulin Resistance in Saudi Women. J Clin Med 2022; 11:jcm11216577. [DOI: 10.3390/jcm11216577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 11/03/2022] [Accepted: 11/04/2022] [Indexed: 11/09/2022] Open
Abstract
Vitamin D has been traditionally seen to be mainly involved in the regulation of bone homeostasis. However, vitamin D has also been clinically linked to various diseases, including metabolic syndrome. The aim of this study was to examine the effect of low and high doses of a vitamin D supplement on the serum levels of 25(OH)D3 and insulin resistance. A total of 120 females were recruited in this study and supplemented weekly with 25,000 IU vitamin D or 50,000 IU vitamin D for three months. Anthropometric measurements were taken at the beginning of the study. Blood samples were collected at the beginning of the study to determine the baseline of the clinical variables and collected again after three months. Insulin resistance was measured using Homeostatic Model Assessment for Insulin Resistance (HOMA-IR). After vitamin D supplementation, a non-significant increase was observed in the serum levels of 25(OH)D3 in the group treated with a low dose of vitamin D (LDVD) and a highly significant increase was seen in the group treated with a high dose of vitamin D (HDVD). In the group treated with a higher dose (HDVD), a significant improvement in insulin sensitivity was observed. The high dose of vitamin D (50,000 IU) supplementation was more effective in both correcting the blood levels of vitamin D and improving the sensitivity of insulin.
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6
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Abuhijleh H, Alkhatib D, Ganji V. Hypovitaminosis D and Metabolic Syndrome in Postmenopausal Women. Healthcare (Basel) 2022; 10:healthcare10102026. [PMID: 36292473 PMCID: PMC9602081 DOI: 10.3390/healthcare10102026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 09/20/2022] [Accepted: 09/29/2022] [Indexed: 11/04/2022] Open
Abstract
Metabolic syndrome (MetSyn) is a precursor for several cardiometabolic diseases. The prevalence of MetSyn is higher in postmenopausal women compared to premenopausal women. The role of vitamin D in postmenopausal women is not clearly understood. Hypovitaminosis D is more prevalent in postmenopausal women compared to premenopausal women. For this review, Pubmed, Cochrane, SCOPUS, Embase, and Google Scholar databases were searched up to August 2022. Findings from one randomized controlled trial (RCT) and ten cross-sectional studies were included in this review. Several cross-sectional studies (8 out of 10 reviewed) unequivocally demonstrated an inverse association between serum 25-hydroxyvitamin D concentrations and MetSyn. However, RCTs are severely lacking in the effect of vitamin D intake on the biomarkers of MetSyn and the prevalence of MetSyn. Therefore, caution should be used in recommending mega doses of vitamin D supplements for postmenopausal women because of the potential adverse effects associated with this vitamer.
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da Silva TBP, Luiz MM, Delinocente MLB, Steptoe A, de Oliveira C, Alexandre TDS. Is Abdominal Obesity a Risk Factor for the Incidence of Vitamin D Insufficiency and Deficiency in Older Adults? Evidence from the ELSA Study. Nutrients 2022; 14:nu14194164. [PMID: 36235815 PMCID: PMC9572900 DOI: 10.3390/nu14194164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 09/29/2022] [Accepted: 10/05/2022] [Indexed: 11/06/2022] Open
Abstract
Cross-sectional studies have demonstrated an association between abdominal obesity, determined by waist circumference (WC), and vitamin D (25(OH)D) deficiency in older adults. However, longitudinal evidence is based only on general obesity determined using body mass index (BMI). We investigated whether abdominal obesity is associated with the incidence of 25(OH)D insufficiency (>30 and ≤50 nmol/L) and deficiency (≤30 nmol/L), and whether vitamin D supplementation modifies these associations. We included 2459 participants aged ≥50 years from the English Longitudinal Study of Ageing (ELSA) with 25(OH)D sufficiency (>50 nmol/L) at baseline. Abdominal obesity was defined as >88 cm for women and >102 cm for men. After 4 years, 25(OH)D concentrations were reassessed. Multinomial logistic regression models controlled by covariates were performed. Abdominal obesity increased the risk of the incidence of 25(OH)D insufficiency (RRR = 1.36; 95% CI: 1.01−1.83) and deficiency (RRR = 1.64; 95% CI: 1.05−2.58). These risks were maintained when excluding individuals who took vitamin D supplementation (RRR = 1.38; 95% CI: 1.02−1.88) and (RRR = 1.62; 95% CI: 1.02−2.56). Abdominal obesity is associated with the risk of incidence of low 25(OH)D concentrations. WC seems to be an adequate tool for screening individuals with obesity and at potential risk of developing these conditions.
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Affiliation(s)
- Thaís Barros Pereira da Silva
- Department of Gerontology, Federal University of São Carlos, Rodovia Washington Luís, Km 235, SP-310, São Carlos 13565-905, São Paulo, Brazil
| | - Mariane Marques Luiz
- Postgraduate Program in Physical Therapy, Federal University of São Carlos, Rodovia Washington Luís, Km 235, SP-310, São Carlos 13565-905, São Paulo, Brazil
| | - Maicon Luís Bicigo Delinocente
- Postgraduate Program in Gerontology, Federal University of São Carlos, Rodovia Washington Luís, Km 235, SP-310, São Carlos 13565-905, São Paulo, Brazil
| | - Andrew Steptoe
- Department of Epidemiology and Public Health, University College London, Gower Street, London WC1E 6BT, UK
| | - Cesar de Oliveira
- Department of Epidemiology and Public Health, University College London, Gower Street, London WC1E 6BT, UK
| | - Tiago da Silva Alexandre
- Department of Gerontology, Federal University of São Carlos, Rodovia Washington Luís, Km 235, SP-310, São Carlos 13565-905, São Paulo, Brazil
- Postgraduate Program in Physical Therapy, Federal University of São Carlos, Rodovia Washington Luís, Km 235, SP-310, São Carlos 13565-905, São Paulo, Brazil
- Postgraduate Program in Gerontology, Federal University of São Carlos, Rodovia Washington Luís, Km 235, SP-310, São Carlos 13565-905, São Paulo, Brazil
- Department of Epidemiology and Public Health, University College London, Gower Street, London WC1E 6BT, UK
- Correspondence: or ; Tel.: +55-16-3306-6671
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Effects of Vitamin D Supplementation on Adipose Tissue Inflammation and NF-κB/AMPK Activation in Obese Mice Fed a High-Fat Diet. Int J Mol Sci 2022; 23:ijms231810915. [PMID: 36142842 PMCID: PMC9506068 DOI: 10.3390/ijms231810915] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/14/2022] [Accepted: 09/16/2022] [Indexed: 11/20/2022] Open
Abstract
Adipose tissue expansion is strongly associated with increased adipose macrophage infiltration and adipocyte-derived pro-inflammatory cytokines, contributing to obesity-associated low-grade inflammation. Individuals with vitamin D deficiency have an increased prevalence of obesity and increased circulating inflammatory cytokines. However, the effect of vitamin D supplementation on obesity-induced inflammation remains controversial. Male C57BL/6J mice received a low-fat (10% fat) or high-fat (HF, 60% fat diet) containing 1000 IU vitamin D/kg diet, or HF supplemented with 10,000 IU vitamin D/kg diet for 16 weeks (n = 9/group). Vitamin D supplementation did not decrease HF-increased body weight but attenuated obesity-induced adipose hypertrophy and macrophage recruitment as demonstrated by the number of crown-like structures. Vitamin D supplementation significantly reduced the mRNA expression of CD11c, CD68, and iNOS, specific for inflammatory M1-like macrophages, and decreased serum levels of NO. In addition, significant reductions in pro-inflammatory gene expression of IL-6, MCP-1, and TNFα and mRNA levels of ASC-1, CASP1, and IL-1β involved in NLRP3 inflammasome were found in obese mice supplemented with vitamin D. Vitamin D supplementation significantly increased obesity-decreased AMPK activity and suppressed HF-increased NF-κB phosphorylation in adipose tissue from obese mice. These observed beneficial effects of vitamin D supplementation on adipose tissue expansion, macrophage recruitment, and inflammation might be related to AMPK/NF-κB signaling.
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Zhao L, Zhang D, Li X, Zhang Y, Zhao Y, Xu D, Cheng J, Wang J, Li W, Lin C, Yang X, Ma Z, Cui P, Zhang X, Wang W. Comparative proteomics reveals genetic mechanisms of body weight in Hu sheep and Dorper sheep. J Proteomics 2022; 267:104699. [PMID: 35995385 DOI: 10.1016/j.jprot.2022.104699] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 08/06/2022] [Accepted: 08/08/2022] [Indexed: 10/15/2022]
Abstract
Body weight (BW) is a critical economic trait for meat production in sheep, and it is a complex trait affected by numerous elements. The aim of this study was to investigate the genetic mechanisms of sheep BW by a label-free proteomics approach. The result showed, a total of 27, 14, 61, and 65 differentially abundant proteins (DAPs) were identified in the Hu_HBW vs. Hu_LBW, DP_HBW vs. DP_LBW, Hu_HBW vs. DP_HBW, and Hu_LBW vs. DP_LBW comparisons, respectively. Five proteins (including ILK, AHCYL2, MLIP, CYB5A, and SMTNL1) related to fat synthesis and muscle development were detected in the Hu sheep group. In the Dorper sheep group, the screened DAPs strictly related to muscle development and fat synthesis were significantly enriched in MAP kinase activity (MAPK12), Arachidonic acid metabolism, and Steroid hormone biosynthesis (PGFS, LOC101107119) pathways. Several DAPs related to immune responses (SERPINA1, FGG, SERPINC1, and LOC101108131), fat deposition (APOH, GC, AHSG, SKP1, ACSL1, ACAT1, and ACADS), and muscle development (LMOD3 and LRRC39) were detected in the Hu vs. Dorper sheep comparison. These analyses indicated that the BW of sheep is regulated via a variety of pathways, and these DAPs can be further investigated as candidate markers for predicting the BW of sheep. SIGNIFICANCE: Body weight is one of the key traits in sheep and involves multiple coordinated regulatory mechanisms, but the genetic mechanism of BW is still unclear in sheep. In the current study, the label-free method was used to identify the proteins and pathways related to BW using LT muscle of Hu sheep and Dorper sheep with different BW. These findings will provide new candidate proteins and vital pathways into the molecular mechanisms involved growth traits in sheep.
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Affiliation(s)
- Liming Zhao
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Deyin Zhang
- The State Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, Gansu 730020, China
| | - Xiaolong Li
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Yukun Zhang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Yuan Zhao
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Dan Xu
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Jiangbo Cheng
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Jianghui Wang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Wenxin Li
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Changchun Lin
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Xiaobin Yang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Zongwu Ma
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Panpan Cui
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Xiaoxue Zhang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China.
| | - Weimin Wang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China; The State Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, Gansu 730020, China.
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10
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No Association between Vitamin D and Weight Gain: A Prospective, Population-Based Study. Nutrients 2022; 14:nu14153185. [PMID: 35956360 PMCID: PMC9370694 DOI: 10.3390/nu14153185] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 07/21/2022] [Accepted: 07/29/2022] [Indexed: 01/27/2023] Open
Abstract
Background: The association between vitamin D and weight gain remains controversial due to important limitations in the studies. We investigated the relationship between vitamin D levels and 5 and 10 years of weight and waist circumference change in a population-based prospective cohort study. Methods: Prospective study including participants aged between 35 and 75 years living in the city of Lausanne, Switzerland. Weight and waist change at 5- and 10-year follow-up were assessed according to baseline vitamin D status (normal, insufficiency and deficiency). Results: A total of 3638 participants (47.9 % women, mean age 51.6 ± 10.4 years) were included for the 5-year follow-up. No association was found between vitamin D categories and weight change, multivariate-adjusted average ± standard error: 1.6 ± 0.3, 1.5 ± 0.2 and 1.2 ± 0.1 kg for normal, insufficiency and deficiency, respectively, p = 0.159. For waist change, the corresponding values were 3.3 ± 0.4, 3.3 ± 0.2 and 3.4 ± 0.2 cm, p = 0.792. For the 10-year follow-up, data from 2999 participants (45.8% women, mean age 50.8 ± 10.3 years) were used. No association was found for weight 2.3 ± 0.4, 2.3 ± 0.2 and 2.0 ± 0.2 kg, p = 0.588, or for waist 3.7 ± 0.4, 3.6 ± 0.3 and 4.2 ± 0.2 cm for normal, insufficiency and deficiency, respectively, p = 0.259. Conclusion: No association between vitamin D status and weight or waist gain at 5- and 10-year follow-up was found.
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11
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Akter R, Afrose A, Sharmin S, Rezwan R, Rahman MR, Neelotpol S. A comprehensive look into the association of vitamin D levels and vitamin D receptor gene polymorphism with obesity in children. Biomed Pharmacother 2022; 153:113285. [PMID: 35728355 DOI: 10.1016/j.biopha.2022.113285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/27/2022] [Accepted: 06/09/2022] [Indexed: 11/02/2022] Open
Abstract
Childhood obesity accounts for several psychosocial and clinical consequences. Psychosocial consequences include lower self-esteem, social isolation, poor academic achievement, peer problems, and depression, whereas clinical consequences are cardiovascular diseases, type 2 diabetes, dyslipidemia, cancer, autoimmune diseases, girls early polycystic ovarian syndrome (PCOS), asthma, bone deformities, etc. A growing number of studies have uncovered the association of childhood obesity and its consequences with vitamin-D (vit-D) deficiency and vitamin-D receptor (VDR) gene polymorphisms such as single nucleotide polymorphisms (SNPs), e.g., TaqI, BsmI, ApaI, FokI, and Cdx2. Considering the impact of vit-D deficiency and VDR gene polymorphisms, identifying associated factors and risk groups linked to lower serum vit-D levels and prevention of obesity-related syndromes in children is of utmost importance. Previously published review articles mainly focused on the association of vit-D deficiency with obesity or other non-communicable diseases in children. The nature of the correlation between vit-D deficiency and VDR gene polymorphisms with obesity in children is yet to be clarified. Therefore, this review attempts to delineate the association of obesity with these two factors by identifying the molecular mechanism of the relationship.
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Affiliation(s)
- Raushanara Akter
- School of Pharmacy, Brac University, 66 Mohakhali, Dhaka, Bangladesh
| | - Afrina Afrose
- School of Pharmacy, Brac University, 66 Mohakhali, Dhaka, Bangladesh
| | - Shahana Sharmin
- School of Pharmacy, Brac University, 66 Mohakhali, Dhaka, Bangladesh
| | - Rifat Rezwan
- School of Pharmacy, Brac University, 66 Mohakhali, Dhaka, Bangladesh
| | - Md Rashidur Rahman
- Department of Pharmacy, Jashore University of Science and Technology, Jashore 7408, Bangladesh
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12
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Bennour I, Haroun N, Sicard F, Mounien L, Landrier JF. Vitamin D and Obesity/Adiposity—A Brief Overview of Recent Studies. Nutrients 2022; 14:nu14102049. [PMID: 35631190 PMCID: PMC9143180 DOI: 10.3390/nu14102049] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 05/10/2022] [Accepted: 05/11/2022] [Indexed: 12/12/2022] Open
Abstract
Observational studies classically find an inverse relationship between human plasma 25-hydroxyvitamin D concentration and obesity. However, interventional and genetic studies have failed to provide clear conclusions on the causal effect of vitamin D on obesity/adiposity. Likewise, vitamin D supplementation in obese rodents has mostly failed to improve obesity parameters, whereas several lines of evidence in rodents and prospective studies in humans point to a preventive effect of vitamin D supplementation on the onset of obesity. Recent studies investigating the impact of maternal vitamin D deficiency in women and in rodent models on adipose tissue biology programming in offspring further support a preventive metabolically driven effect of vitamin D sufficiency. The aim of this review is to summarize the state of the knowledge on the relationship between vitamin D and obesity/adiposity in humans and in rodents and the impact of maternal vitamin D deficiency on the metabolic trajectory of the offspring.
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Affiliation(s)
- Imene Bennour
- Aix-Marseille Université, C2VN, INRAE, INSERM, 13000 Marseille, France; (I.B.); (N.H.); (F.S.); (L.M.)
| | - Nicole Haroun
- Aix-Marseille Université, C2VN, INRAE, INSERM, 13000 Marseille, France; (I.B.); (N.H.); (F.S.); (L.M.)
| | - Flavie Sicard
- Aix-Marseille Université, C2VN, INRAE, INSERM, 13000 Marseille, France; (I.B.); (N.H.); (F.S.); (L.M.)
- PhenoMARS Aix-Marseille Technology Platform, CriBiom, 13000 Marseille, France
| | - Lourdes Mounien
- Aix-Marseille Université, C2VN, INRAE, INSERM, 13000 Marseille, France; (I.B.); (N.H.); (F.S.); (L.M.)
- PhenoMARS Aix-Marseille Technology Platform, CriBiom, 13000 Marseille, France
| | - Jean-François Landrier
- Aix-Marseille Université, C2VN, INRAE, INSERM, 13000 Marseille, France; (I.B.); (N.H.); (F.S.); (L.M.)
- PhenoMARS Aix-Marseille Technology Platform, CriBiom, 13000 Marseille, France
- Correspondence: ; Tel.: +33-4-9129-4275
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13
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Tucker LA. Serum, Dietary, and Supplemental Vitamin D Levels and Insulin Resistance in 6294 Randomly Selected, Non-Diabetic U.S. Adults. Nutrients 2022; 14:nu14091844. [PMID: 35565811 PMCID: PMC9100608 DOI: 10.3390/nu14091844] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/23/2022] [Accepted: 04/25/2022] [Indexed: 12/21/2022] Open
Abstract
The primary aim of this study was to determine the associations between serum, dietary, and supplemental vitamin D levels and insulin resistance in 6294 non-diabetic U.S. adults. A total of 8 years of data from the 2011−2018 National Health and Nutrition Examination Survey (NHANES) and a cross-sectional design were utilized to answer the research questions. Serum vitamin D levels were quantified using high-performance liquid chromatography−tandem mass spectrometry. Dietary and supplemental vitamin D intakes were assessed using the average of two 24 h dietary recalls taken 3−10 days apart. The homeostatic model assessment (HOMA), based on fasting glucose and fasting insulin levels, was employed to index insulin resistance. Demographic covariates were age, sex, race, and year of assessment. Differences in physical activity, body mass index (BMI), cigarette smoking, body weight, season, and energy intake were also controlled statistically. Serum levels of vitamin D differed significantly, and in a dose−response order, across quartiles of HOMA-IR, after adjusting for year, age, sex, and race (F = 30.3, p < 0.0001) and with all the covariates controlled (F = 5.4, p = 0.0029). Dietary vitamin D levels differed similarly across HOMA-IR quartiles, but to a lesser extent, respectively (F = 8.1, p = 0.0001; F = 2.9, p = 0.0437). Likewise, supplemental vitamin D levels also differed across the HOMA-IR quartiles, respectively (F = 3.5, p = 0.0205; F = 3.3, p = 0.0272). With all the covariates controlled, the odds of having insulin resistance were significantly greater for those in the lowest quartile of serum and supplemental vitamin D intake compared to the other quartiles combined. In conclusion, in this nationally representative sample, serum, dietary, and supplemental vitamin D were each predictive of insulin resistance, especially in those with low serum levels and those with no supplemental intake of vitamin D.
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Affiliation(s)
- Larry A Tucker
- College of Life Sciences, Brigham Young University, Provo, UT 84602, USA
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14
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Hypothesized pathways for the association of vitamin D status and insulin sensitivity with resting energy expenditure: a cross sectional mediation analysis in Australian adults of European ancestry. Eur J Clin Nutr 2022; 76:1457-1463. [PMID: 35365764 PMCID: PMC9550620 DOI: 10.1038/s41430-022-01123-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 03/06/2022] [Accepted: 03/11/2022] [Indexed: 11/29/2022]
Abstract
Background The role of vitamin D in human energy expenditure requires confirmation. We explored whether insulin sensitivity (IS)/insulin resistance (IR) mediated the association of vitamin D status (25OHD) on resting energy expenditure (REE). Methods REE, body composition (by DEXA) and clinical biochemistry of 155 Australian men and women were collated. A hypothesized mediation pathway through IS/IR on the direct association between 25OHD and REE was modeled, using three surrogate indices of IS/IR: McAuley’s insulin sensitivity index (McA), Quantitative insulin sensitivity check index (QUICKI) and triglyceride to glucose ratio (TYG). The modeling was performed on PROCESS SPSS Macro (version 4.0) based on 5000 bootstrapped samples, with and without the adjustment for covariates. Results Unadjusted models indicated a sizeable negative mediation by all IS/IR indices but no significant direct effect of 25OHD on REE. On adjustment for covariates, a negative indirect mediation effect of McA [β coefficient (SE) −2.1(0.821); bootstrapped 95% CI:−3.934, −0.703; p < 0.05] and a similar negative mediation of TYG [−1.935 (0.780); bootstrapped 95% CI: (−3.679, −0.622; p < 0.05] was observed. These models also showed a positive direct effect of 25OHD on REE. In contrast, QUICKI made a smaller contribution to the total effect though in the same direction as the other two measures [−0.783 (0.534); bootstrapped 95% CI: (−1.939, 0.134; P > 0.05]. Conclusions A sizeable, partial, negative mediation of IS/IR on the direct relationship between 25OHD and REE, dampened the total effect of vitamin D on REE. Validation of the proposed causal framework would clarify vitamin D’s role in human energy metabolism.
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Hribar M, Benedik E, Gregorič M, Blaznik U, Kukec A, Hristov H, Žmitek K, Pravst I. A Systematic Review of Vitamin D Status and Dietary Intake in Various Slovenian Populations. Zdr Varst 2022; 61:55-72. [PMID: 35111267 PMCID: PMC8776289 DOI: 10.2478/sjph-2022-0009] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 11/05/2021] [Indexed: 12/26/2022] Open
Abstract
AIM Vitamin D (VitD) is involved in calcium and phosphate homeostasis, bone health, and normal functioning of the immune system. VitD status is monitored using serum 25-hydroxy-vitamin D (25(OH)D) as a biomarker. Serum 25(OH)D concentrations below 30 nmol/L indicate VitD deficiency and below 50 nmol/L indicate insufficiency. VitD can be synthesised endogenously in human skin when exposed to ultraviolet B (UVB) radiation. In the absence of sufficient UVB-light exposure, VitD intake becomes the main source of VitD, with a recommended daily intake of 20 μg. The aim of this study was to conduct a review and meta-analysis on the abovementioned topics, focusing on scientific studies in various Slovenian populations. METHODS We conducted a systematic review and meta-analysis of published scientific papers, academic theses, or conference contributions reporting serum 25(OH)D status and VitD intake across various Slovenian populations. A search was carried out using Web of Science, Scopus, Medline, and the Slovenian library database. RESULTS We identified 43 pertinent studies that addressed 25(OH)D status and 16 that addressed VitD intake. Serum 25(OH)D status was generally low across all populations, and notable seasonal variability was observed. VitD intakes were below 5 μg in all studies. CONCLUSIONS A general observation is that various population groups across Slovenia are at high risk of vitamin D insufficiency and deficiency, particularly during wintertime. Regarding vitamin D intake, all included studies reported daily intakes below the recommended level. We also identified key research gaps that need to be addressed to support further public health decision-making.
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Affiliation(s)
- Maša Hribar
- Nutrition Institute, Tržaška cesta 40, 1000Ljubljana, Slovenia
- University of Ljubljana, Biotechnical Faculty, Jamnikarjeva 101, 1000Ljubljana, Slovenia
| | - Evgen Benedik
- University of Ljubljana, Biotechnical Faculty, Jamnikarjeva 101, 1000Ljubljana, Slovenia
- University Medical Centre Ljubljana, Zaloška cesta 2, 1000Ljubljana, Slovenia
| | - Matej Gregorič
- National Institute of Public Health, Trubarjeva 2, 1000Ljubljana, Slovenia
| | - Urška Blaznik
- National Institute of Public Health, Trubarjeva 2, 1000Ljubljana, Slovenia
| | - Andreja Kukec
- University of Ljubljana, Faculty of Medicine, Vrazov trg 2, 1000Ljubljana, Slovenia
| | - Hristo Hristov
- Nutrition Institute, Tržaška cesta 40, 1000Ljubljana, Slovenia
| | - Katja Žmitek
- Nutrition Institute, Tržaška cesta 40, 1000Ljubljana, Slovenia
- VIST–Faculty of Applied Sciences, Gerbičeva cesta 53, 1000Ljubljana, Slovenia
| | - Igor Pravst
- Nutrition Institute, Tržaška cesta 40, 1000Ljubljana, Slovenia
- University of Ljubljana, Biotechnical Faculty, Jamnikarjeva 101, 1000Ljubljana, Slovenia
- VIST–Faculty of Applied Sciences, Gerbičeva cesta 53, 1000Ljubljana, Slovenia
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16
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Szymczak-Pajor I, Miazek K, Selmi A, Balcerczyk A, Śliwińska A. The Action of Vitamin D in Adipose Tissue: Is There the Link between Vitamin D Deficiency and Adipose Tissue-Related Metabolic Disorders? Int J Mol Sci 2022; 23:956. [PMID: 35055140 PMCID: PMC8779075 DOI: 10.3390/ijms23020956] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 01/09/2022] [Accepted: 01/10/2022] [Indexed: 12/11/2022] Open
Abstract
Adipose tissue plays an important role in systemic metabolism via the secretion of adipocytokines and storing and releasing energy. In obesity, adipose tissue becomes dysfunctional and characterized by hypertrophied adipocytes, increased inflammation, hypoxia, and decreased angiogenesis. Although adipose tissue is one of the major stores of vitamin D, its deficiency is detective in obese subjects. In the presented review, we show how vitamin D regulates numerous processes in adipose tissue and how their dysregulation leads to metabolic disorders. The molecular response to vitamin D in adipose tissue affects not only energy metabolism and adipokine and anti-inflammatory cytokine production via the regulation of gene expression but also genes participating in antioxidant defense, adipocytes differentiation, and apoptosis. Thus, its deficiency disturbs adipocytokines secretion, metabolism, lipid storage, adipogenesis, thermogenesis, the regulation of inflammation, and oxidative stress balance. Restoring the proper functionality of adipose tissue in overweight or obese subjects is of particular importance in order to reduce the risk of developing obesity-related complications, such as cardiovascular diseases and diabetes. Taking into account the results of experimental studies, it seemed that vitamin D may be a remedy for adipose tissue dysfunction, but the results of the clinical trials are not consistent, as some of them show improvement and others no effect of this vitamin on metabolic and insulin resistance parameters. Therefore, further studies are required to evaluate the beneficial effects of vitamin D, especially in overweight and obese subjects, due to the presence of a volumetric dilution of this vitamin among them.
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Affiliation(s)
- Izabela Szymczak-Pajor
- Department of Nucleic Acid Biochemistry, Medical University of Lodz, 251 Pomorska Str., 92-213 Lodz, Poland;
| | - Krystian Miazek
- Institute of Applied Radiation Chemistry, Faculty of Chemistry, Lodz University of Technology, 15 Wroblewskiego, 93-590 Lodz, Poland;
| | - Anna Selmi
- Department of Molecular Biophysics, University of Lodz, 141/143 Pomorska, 90-236 Lodz, Poland; (A.S.); (A.B.)
| | - Aneta Balcerczyk
- Department of Molecular Biophysics, University of Lodz, 141/143 Pomorska, 90-236 Lodz, Poland; (A.S.); (A.B.)
| | - Agnieszka Śliwińska
- Department of Nucleic Acid Biochemistry, Medical University of Lodz, 251 Pomorska Str., 92-213 Lodz, Poland;
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17
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Rajabi S, Aghamohammadi V, Moradpour G, Amini M, Hosseini SV, Sobhani Z, Medhati P, Hosseini E, Hosseini B, Haghighat N, Vafa L, Moeinvaziri N. Vitamin D Status in Patients with Morbid Obesity Following Bariatric Surgery in Shiraz, Iran: A Retrospective Observational Study. Bariatr Surg Pract Patient Care 2021. [DOI: 10.1089/bari.2020.0121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Affiliation(s)
- Shirin Rajabi
- Laparascopy Research Center, Department of Surgery, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Gholamreza Moradpour
- Laparascopy Research Center, Department of Surgery, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Masoud Amini
- Laparascopy Research Center, Department of Surgery, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Seyed Vahid Hosseini
- Laparascopy Research Center, Department of Surgery, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
- Colorectal Research Center, Department of Surgery, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Sobhani
- Laparascopy Research Center, Department of Surgery, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Pourya Medhati
- Laparascopy Research Center, Department of Surgery, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Elahe Hosseini
- Laparascopy Research Center, Department of Surgery, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Babak Hosseini
- Laparascopy Research Center, Department of Surgery, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Neda Haghighat
- Laparascopy Research Center, Department of Surgery, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Leila Vafa
- Laparascopy Research Center, Department of Surgery, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Nader Moeinvaziri
- Laparascopy Research Center, Department of Surgery, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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18
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Mechanisms Involved in the Relationship between Vitamin D and Insulin Resistance: Impact on Clinical Practice. Nutrients 2021; 13:nu13103491. [PMID: 34684492 PMCID: PMC8539968 DOI: 10.3390/nu13103491] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [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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19
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Lorenzon F, Gregorio T, Niebisch F, Stolte RCK, Dos Santos GJ, Rafacho A, Lima FB. Maternal vitamin D administration attenuates metabolic disturbances induced by prenatal exposure to dexamethasone in a sex-dependent manner. J Steroid Biochem Mol Biol 2021; 212:105941. [PMID: 34147644 DOI: 10.1016/j.jsbmb.2021.105941] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 05/25/2021] [Accepted: 06/10/2021] [Indexed: 12/17/2022]
Abstract
PURPOSE The overexposure to synthetic glucocorticoids (GC) during pregnancy can predispose to metabolic diseases during adulthood. Vitamin D is not only crucial for fetal development, but also exerts direct effects on the GC sensitivity and down-regulates GC receptors. Given the vitamin D effects on glucocorticoid-related parameters, we aimed to investigate a possible protective role of maternal vitamin D administration on the glucose homeostasis of rats exposed to dexamethasone in utero. METHODS Pregnant rats received dexamethasone (0.1 mg/kg, Dex) daily between the 14th and 19th days of pregnancy. A subgroup of dexamethasone-treated dams received oral administration of vitamin D (500UI, DexVD) during the whole gestation. The corresponding control groups of dams were included (CTL and VD groups, respectively). Male and female offspring were evaluated at 3, 6 and 12 months of age. RESULTS Prenatal exposure to dexamethasone caused metabolic disruption in an age and sex-dependent manner being the older male offspring more susceptible to insulin resistance, fatty liver and beta-cell mass expansion than females. Furthermore, we demonstrated that prenatal GC led to glucose intolerance in male and female offspring in an age-dependent manner. Maternal vitamin D administration did not influence glucose intolerance but attenuated the insulin resistance, liver lipid accumulation and prevented the beta-cell mass expansion caused by prenatal dexamethasone in the male offspring. CONCLUSION Maternal vitamin D administration mitigates metabolic disturbances that occur later in life in male rats exposed to GC in utero. Moreover, our data suggest vitamin D as an important nutritional supplement for pregnant overexposed to GC during gestation.
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Affiliation(s)
- Flaviano Lorenzon
- Departamento de Ciências Fisiológicas, Campus Trindade, 88040-900, Florianópolis, SC, Brazil; Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina - UFSC, Campus Trindade, 88040-900, Florianópolis, SC, Brazil
| | - Tamires Gregorio
- Departamento de Ciências Fisiológicas, Campus Trindade, 88040-900, Florianópolis, SC, Brazil; Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina - UFSC, Campus Trindade, 88040-900, Florianópolis, SC, Brazil
| | - Fernanda Niebisch
- Departamento de Ciências Fisiológicas, Campus Trindade, 88040-900, Florianópolis, SC, Brazil
| | - Rafaela C K Stolte
- Departamento de Ciências Fisiológicas, Campus Trindade, 88040-900, Florianópolis, SC, Brazil
| | - Gustavo J Dos Santos
- Departamento de Ciências Fisiológicas, Campus Trindade, 88040-900, Florianópolis, SC, Brazil; Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina - UFSC, Campus Trindade, 88040-900, Florianópolis, SC, Brazil
| | - Alex Rafacho
- Departamento de Ciências Fisiológicas, Campus Trindade, 88040-900, Florianópolis, SC, Brazil; Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina - UFSC, Campus Trindade, 88040-900, Florianópolis, SC, Brazil
| | - Fernanda B Lima
- Departamento de Ciências Fisiológicas, Campus Trindade, 88040-900, Florianópolis, SC, Brazil; Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina - UFSC, Campus Trindade, 88040-900, Florianópolis, SC, Brazil.
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20
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Dose-response relationship between serum 25-hydroxyvitamin D and the risk of metabolic syndrome. Clin Nutr 2021; 40:1530-1536. [PMID: 33743288 DOI: 10.1016/j.clnu.2021.02.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 02/09/2021] [Accepted: 02/13/2021] [Indexed: 11/23/2022]
Abstract
BACKGROUND & AIMS There are conflicting results for the association of 25-hydroxyvitamin D [25(OH)D] with metabolic syndrome (MetS). The aim of this study was to investigate the relationship between serum 25(OH)D concentration and MetS and its components in a Chinese adult population. METHODS A cross-sectional study of 25,691 men and 22,146 women from China was performed in 2017. MetS was defined according to National Cholesterol Education Program Adult Treatment Panel Ш. Logistic and restricted cubic spline regression analyses were used to assess the association between 25(OH)D and MetS. RESULTS Of the 43,837 participants aged 18-96 years, the prevalence of MetS was 21.0%. The adjusted odds ratios (ORs) for MetS decreased gradually with increasing 25(OH)D concentrations (P for trend < 0.001). Compared with the lowest 25(OH)D quartile, the adjusted ORs (95% CIs) for MetS from second to the highest quartile were 0.95 (0.88-1.02), 0.82 (0.76-0.88), and 0.70 (0.65-0.75), respectively. We observed a linear dose-response relationship between 25(OH)D concentrations and MetS risk (P for nonlinear trend = 0.35); the risk of MetS decreased by 20% (OR = 0.80, 95%CI: 0.77-0.82) for each 10 ng/ml increment in 25(OH)D concentration. The inverse association was more evident in men and participants with eGFR <60 ml/min/1.73 m2 or AST ≥40 U/L (all P for interaction < 0.05). Moreover, significant inverse relationships were observed between 25(OH)D and elevated triglycerides, reduced high-density lipoprotein cholesterol and elevated blood pressure. CONCLUSIONS These findings suggested that higher 25(OH)D concentrations were independently associated with a dose-response decreased risk of MetS among Chinese adults.
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Park CY, Han SN. The Role of Vitamin D in Adipose Tissue Biology: Adipocyte Differentiation, Energy Metabolism, and Inflammation. J Lipid Atheroscler 2021; 10:130-144. [PMID: 34095008 PMCID: PMC8159757 DOI: 10.12997/jla.2021.10.2.130] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 01/07/2021] [Accepted: 01/29/2021] [Indexed: 12/27/2022] Open
Abstract
Adipose tissue is composed of diverse cell types and plays a major role in energy homeostasis and inflammation at the local and systemic levels. Adipose tissue serves as the main site for vitamin D storage and is among the most important extraskeletal targets of vitamin D which can modulate multiple aspects of adipose tissue biology. Vitamin D may exert inhibitory or stimulatory effects on adipocyte differentiation depending on cell type, stage of differentiation, and the treatment time point. Moreover, vitamin D controls energy metabolism in adipose tissue by affecting fatty acid oxidation, expression of uncoupling proteins, insulin resistance, and adipokine production. Adipose tissue inflammation can have a significant impact on the metabolic disorders often associated with obesity, and vitamin D can modulate the inflammatory response of immune cells and adipocytes within the adipose tissue. This review discusses the role of adipose tissue in vitamin D metabolism, as well as the regulatory role of vitamin D in adipocyte differentiation, adipose tissue energy metabolism, and inflammation, thereby providing insights into the importance of vitamin D in adipose tissue biology.
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Affiliation(s)
- Chan Yoon Park
- Department of Physiology, University of Ulsan College of Medicine, Seoul, Korea
| | - Sung Nim Han
- Department of Food and Nutrition, College of Human Ecology, Seoul National University, Seoul, Korea.,Research Institute of Human Ecology, College of Human Ecology, Seoul National University, Seoul, Korea
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22
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Al-ghamdi HA, Al Fayez FF, Bima AI, Khawaji TM, Elsamanoudy AZ. Study of Cellular Senescence and Vitamin D Deficiency in Nonalcoholic Fatty Liver Disease and The Potential Protective Effect of Vitamin D Supplementation. J Clin Exp Hepatol 2021; 11:219-226. [PMID: 33746447 PMCID: PMC7952998 DOI: 10.1016/j.jceh.2020.07.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 07/11/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Nonalcoholic fatty liver disease (NAFLD) is a pathological process characterized by excessive hepatic fatty deposition with possible involvement of vitamin D deficiency and cellular senescence. The aim of this study is to investigate the pathophysiologic role of vitamin D deficiency and cellular senescence in NAFLD development. Moreover, it aims to investigate the potential protective role of vitamin D supplementation. METHODS This is an experimental Case/Control study. Forty-five male albino rats were enrolled in this study. Animals were divided into four groups: negative and positive control groups (10 for each group), a model of NAFLD (11) and vitamin D-treated NAFLD groups (14). At the end of the experiment, all rats were subjected to the following investigation; biochemical estimation of serum 25 hydroxycholecalciferol, senescence marker protein-30 (SMP-30), lipid profile and calculation of homeostatic model of insulin resistance (HOMA-IR). RESULTS NAFLD group shows a significant increase in glucose, insulin levels, and HOMA- IR compared with both normal controls. This finding indicates the intimate association between insulin resistance and NAFLD pathogenesis. Moreover, it was found that NAFLD group shows a significant decrease in SMP-30 level compared with normal controls. While vitamin D-treated NAFLD group shows significant increased SMP-30 and decrease in HOMA-IR in comparison with nontreated NAFLD group. CONCLUSION Vitamin D deficiency and increased cellular senescence are key features of NAFLD. Vitamin D supplementation could play a protective role, which needs further investigation including clinical human study.
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Affiliation(s)
- Hasen A. Al-ghamdi
- Clinical Biochemistry, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Fayza F. Al Fayez
- Clinical Biochemistry, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Abdulhadi I. Bima
- Clinical Biochemistry, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Taghreed M. Khawaji
- Clinical Biochemistry, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Ayman Z. Elsamanoudy
- Clinical Biochemistry, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
- Medical Biochemistry and Molecular Biology, Faculty of Medicine, Mansoura University, Mansoura, Egypt
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Does vitamin D deficiency increase the risk of obesity in adults and the elderly? A systematic review of prospective cohort studies. Public Health 2021; 190:123-131. [PMID: 33453688 DOI: 10.1016/j.puhe.2020.04.031] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 04/09/2020] [Accepted: 04/25/2020] [Indexed: 12/21/2022]
Abstract
OBJECTIVES Epidemiological studies indicate an association between vitamin D deficiency and obesity. However, there is no consistent evidence of the direction or causal relationship between these conditions. Thus, we analysed the longitudinal relationship between vitamin D deficiency and obesity/adiposity in different age groups. STUDY DESIGN This study was a systematic review with PROSPERO registry (CRD42016047523). METHODS Electronic searches were undertaken in Lilacs, Medline, Science Direct, Scopus and Web of Science databases until April 2020. For each study, we collected the frequency of vitamin D deficiency and obesity. RESULTS In total, 5071 articles were identified and 8 were ultimately included in this systematic review. Five cohort studies involved adults, two of which recorded a positive association between vitamin D deficiency and obesity. The other three studies found a borderline or null association between vitamin D deficiency and obesity. Three studies investigated the elderly population; two of these recorded an association between vitamin D and greater adiposity, and one study recorded that 25-hydroxyvitamin D levels ≥30 ng/ml were associated with less weight gain in the follow-up. CONCLUSIONS This review reports that the majority of studies included show that vitamin D deficiency can contribute to the occurrence of obesity in adults and the elderly. It is recommended that prospective studies are conducted, with varying age groups and weather conditions, designed to test the longitudinal relationship between vitamin D deficiency and obesity outcomes.
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Jung JH, Park SH. Correlation between Fecal Calprotectin Levels in Meconium and Vitamin D Levels in Cord Blood: Association with Intestinal Distress. J Clin Med 2020; 9:jcm9124089. [PMID: 33352905 PMCID: PMC7766555 DOI: 10.3390/jcm9124089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/07/2020] [Accepted: 12/16/2020] [Indexed: 01/08/2023] Open
Abstract
We aimed to investigate the correlation between vitamin D status in cord blood and fecal calprotectin concentrations in meconium, and also find their association with intestinal distress symptoms during the first two weeks of life. Two hundred and twenty-eight newborns were enrolled in the study who were delivered at Kyungpook National University Children’s Hospital between July 2016 and August 2017. The first passed meconium samples were collected for fecal calprotectin analysis. Intestinal distress involved infants with necrotizing enterocolitis (NEC) and other feeding interruption signs. The median gestational age of the population was 37.0 (34.3–38.4) weeks, and the median birth weight was 2635 (2100–3268) g. The median fecal calprotectin levels in meconium were 134.1 (55.6–403.2) μg/g (range: 11.5–2000 μg/g) and the median 25-hydroxyvitamin D (25-OHD) concentrations in cord blood were 21.0 (15.5–28.8) ng/mL. Sixty infants (26.3%) had intestinal distress, including four patients (1.8%) diagnosed as having NEC. Higher fecal calprotectin concentrations (398.2 (131.8–900.2) μg/g vs. 105.6 (39.4–248.5) μg/g, p < 0.001) and lower 25-OHD levels (17.9 (12.8–22.1) ng/mL vs. 23.2 (17.2–33.0) ng/mL, p < 0.001) were found in infants with intestinal distress compared to infants without intestinal distress. The cut-off value was set at 359.8 μg/g with a sensitivity of 0.53 and a specificity of 0.82 for the development of intestinal distress in the first two weeks of life. Serum 25-OHD levels in cord blood were inversely correlated with fecal calprotectin concentrations in meconium.
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Affiliation(s)
- Jae Hoon Jung
- Department of Pediatrics, School of Medicine, Kyunpook National University, Daegu 41404, Korea;
- Division of Neonatology, Kyunpook National University Chilgok Hospital, Daegu 41404, Korea
| | - Sook Hyun Park
- Department of Pediatrics, School of Medicine, Kyunpook National University, Daegu 41404, Korea;
- Division of Neonatology, Kyunpook National University Chilgok Hospital, Daegu 41404, Korea
- Correspondence: ; Tel.: +82-532-005-704
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25
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Association of Low Serum 25OHD Levels with Abnormal Bone Microarchitecture in Well-Differentiated Thyroid Cancer. Med Sci (Basel) 2020; 8:medsci8040049. [PMID: 33271814 PMCID: PMC7711525 DOI: 10.3390/medsci8040049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/18/2020] [Accepted: 11/23/2020] [Indexed: 11/16/2022] Open
Abstract
The association of low levels of 25 hydroxyvitamin D (25OHD) with papillary thyroid cancer (PTC) is being studied, as to whether it is a risk factor or as a coincidental one. This study aimed to evaluate serum levels of deficiency, insufficiency, and sufficiency of 25OHD in PTC and its relationship with the trabecular bone score (TBS) and bone mineral density (BMD). This study includes 134 postmenopausal women with PTC, followed for 10 years. BMD was measured with DXA Hologic QDR 4500, and TBS with Med-Imaps iNsight2.0 Software. Mean serum 25OHD was 23.09 ± 7.9 ng/mL and deficiency, insufficiency, and sufficiency levels were 15.64 ± 2.9, 25.27 ± 2.7, and 34.7 ng/mL, respectively. Parathyroid hormone (PTH) and bone alkaline phosphatase (BAP) were higher in deficiency (57.65 ± 22.6 ng/mL; 29.5 ± 14 U/L) and in insufficiency (45.88 ± 19.8 ng/mL; 23.47 ± 8.8 U/L) compared with sufficiency of 25OHD (47.13 ± 16 and 22.14± 9.7 ng/mL) (p = 0.062 and p = 0.0440, respectively). TBS was lower in patients with 25OHD < 20 ng/mL (1.24 ± 0.13) compared with between 20-29 (1.27 ± 0.13, p < 0.05) and 30 ng/mL (1.31 ± 0.11, p < 0.01). We found low TBS in patients with PTC and long-term follow-up associated with low serum 25OHD levels, not associated with cancer stage, or accumulative iodine radioactive dose. Low 25OHD associated with deleterious bone quality in patients with PTC should be restored for the prevention of fractures.
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Vitamin D Supplementation Does Not Impact Resting Metabolic Rate, Body Composition and Strength in Vitamin D Sufficient Physically Active Adults. Nutrients 2020; 12:nu12103111. [PMID: 33053823 PMCID: PMC7601703 DOI: 10.3390/nu12103111] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/07/2020] [Accepted: 10/08/2020] [Indexed: 12/30/2022] Open
Abstract
Supplementation with the most efficient form of Vitamin D (VitD3) results in improvements in energy metabolism, muscle mass and strength in VitD deficient individuals. Whether similar outcomes occur in VitD sufficient individuals' remains to be elucidated. The aim of this study is to determine the effect of VitD3 supplementation on resting metabolic rate (RMR), body composition and strength in VitD sufficient physically active young adults. Participants completed pre-supplementation testing before being matched for sunlight exposure and randomly allocated in a counterbalanced manner to the VitD3 or placebo group. Following 12 weeks of 50 IU/kg body-mass VitD3 supplementation, participants repeated the pre-supplementation testing. Thirty-one adults completed the study (19 females and 12 males; mean ± standard deviation (SD); age = 26.6 ± 4.9 years; BMI = 24.2 ± 4.1 kg·m2). The VitD group increased serum total 25(OH)D by 30 nmol/L while the placebo group decreased total serum concentration by 21 nmol/L, reaching 123 (51) and 53 (42.2) nmol/L, respectively. There were no significant changes in muscle strength or power, resting metabolic rate and body composition over the 12-week period. Physically active young adults that are VitD sufficient have demonstrated that no additional physiological effects of achieving supraphysiological serum total 25(OH)D concentrations after VitD3 supplementation.
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27
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Heitz A, Mai XM, Chen Y, Sun YQ. Serum 25-hydroxyvitamin D level in relation to weight change and the risk of weight gain in adults of normal weight at baseline: the Norwegian HUNT cohort study. BMJ Open 2020; 10:e039192. [PMID: 32978203 PMCID: PMC7520844 DOI: 10.1136/bmjopen-2020-039192] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE We sought to investigate the relationship of serum 25-hydroxyvitamin D (25(OH)D) level with weight change and the risk of weight gain in an adult population who had normal weight at baseline and were followed up for 11 years. DESIGN A population-based prospective cohort study. SETTING Nord-Trøndelag, Norway. PARTICIPANTS The study included 1501 adults who participated in the second and third surveys of the Nord-Trøndelag Health Study (HUNT2 (1995-1997) and HUNT3 (2006-2008)) and had a normal body mass index ≥18.5 and <25.0 kg/m2 at baseline. PRIMARY AND SECONDARY OUTCOME MEASURES Relative weight change (%) was calculated as ((HUNT3 weight-HUNT2 weight)/HUNT2 weight×100). Relative annual weight change (%) was calculated as (relative weight change/follow-up years×100). Clinical weight gain was defined as relative weight change ≥5% over the 11 years, while annual weight gain was defined as relative annual weight change >1.25%. METHODS Multiple regression models were used to estimate adjusted coefficients for the relative annual weight change and risk ratios (RRs) for the risk of clinical weight gain and of annual weight gain. RESULTS Each 25 nmol/L increase in season-standardised serum 25(OH)D level at baseline was associated with a reduction of 0.05% (95% CI -0.11 to 0.01) for relative annual weight change, a 10% (RR 0.90, 95% CI 0.82 to 0.97) reduced risk of clinical weight gain, and a 19% (RR 0.81, 95% CI 0.65 to 1.00) reduced risk of annual weight gain. A statistically significant trend was evident for the risk of clinical weight gain when 25(OH)D levels were treated as a categorical variable (p=0.006). CONCLUSIONS The findings suggested an inverse association of serum 25(OH)D level with the risk of clinical weight gain in adults who had normal weight at baseline over 11 years' follow-up.
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Affiliation(s)
- Adaline Heitz
- Department of Public Health and Nursing, Norwegian University of Science and Technology, Trondheim, Norway
| | - Xiao-Mei Mai
- Department of Public Health and Nursing, Norwegian University of Science and Technology, Trondheim, Norway
| | - Yue Chen
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Yi-Qian Sun
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
- Department of Pathology, Clinic of Laboratory Medicine, St. Olavs Hospital, Trondheim, Norway
- Center for Oral Health Services and Research, Mid-Norway (TkMidt), Trondheim, Norway
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The Molecular Mechanisms by Which Vitamin D Prevents Insulin Resistance and Associated Disorders. Int J Mol Sci 2020; 21:ijms21186644. [PMID: 32932777 PMCID: PMC7554927 DOI: 10.3390/ijms21186644] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [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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Sauder KA, Stamatoiu AV, Leshchinskaya E, Ringham BM, Glueck DH, Dabelea D. Cord Blood Vitamin D Levels and Early Childhood Blood Pressure: The Healthy Start Study. J Am Heart Assoc 2020; 8:e011485. [PMID: 31020895 PMCID: PMC6512116 DOI: 10.1161/jaha.118.011485] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Background Vitamin D deficiency is associated with cardiovascular events among adults, but it is unclear whether early-life vitamin D deficiency influences cardiovascular risk factors in children. Methods and Results We measured total and bioavailable 25-dihydroxyvitamin D (25OHD) in cord blood and in blood from 4- to 6-year-old children, and we assessed cardiovascular risk factors (blood pressure, arterial stiffness, body size, and adiposity) at 4 to 6 years. We tested for racial/ethnic differences in total and bioavailable 25OHD (n=715) and modeled the adjusted association between cord blood 25OHD and childhood cardiovascular risk factors (n=171). We observed racial/ethnic differences in total and bioavailable 25OHD levels in both cord and child blood samples (all P<0.05). Each 25-nmol/L increase in cord blood total 25OHD was associated with a 2.5-mm Hg (SE 0.8) decrease in systolic blood pressure ( P=0.002) and a 1.7-mm Hg (SE 0.6) decrease in diastolic blood pressure ( P=0.01), independent of childhood 25OHD levels, race/ethnicity, and other covariates. There was no association between cord blood total 25OHD and any other cardiovascular risk factors. Cord blood levels of bioavailable and free 25OHD were not associated with any cardiovascular risk factor in childhood. Conclusions In this diverse prebirth cohort, we observed lower systolic and diastolic blood pressure among children with higher total 25OHD levels at birth. Our findings suggest that intrauterine exposure to vitamin D may contribute to early-life programming of offspring blood pressure. Intervention studies are needed to determine whether increasing fetal vitamin D exposure can reduce the risk of elevated blood pressure in childhood.
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Affiliation(s)
- Katherine A Sauder
- 1 Department of Pediatrics University of Colorado School of Medicine Aurora CO.,2 Department of Epidemiology Colorado School of Public Health Aurora CO.,3 Lifecourse Epidemiology of Adiposity and Diabetes (LEAD) Center University of Colorado Aurora CO
| | - Alexandra V Stamatoiu
- 3 Lifecourse Epidemiology of Adiposity and Diabetes (LEAD) Center University of Colorado Aurora CO
| | - Elina Leshchinskaya
- 3 Lifecourse Epidemiology of Adiposity and Diabetes (LEAD) Center University of Colorado Aurora CO
| | - Brandy M Ringham
- 2 Department of Epidemiology Colorado School of Public Health Aurora CO.,3 Lifecourse Epidemiology of Adiposity and Diabetes (LEAD) Center University of Colorado Aurora CO
| | - Deborah H Glueck
- 1 Department of Pediatrics University of Colorado School of Medicine Aurora CO.,3 Lifecourse Epidemiology of Adiposity and Diabetes (LEAD) Center University of Colorado Aurora CO
| | - Dana Dabelea
- 1 Department of Pediatrics University of Colorado School of Medicine Aurora CO.,2 Department of Epidemiology Colorado School of Public Health Aurora CO.,3 Lifecourse Epidemiology of Adiposity and Diabetes (LEAD) Center University of Colorado Aurora CO
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Park CY, Shin Y, Kim JH, Zhu S, Jung YS, Han SN. Effects of high fat diet-induced obesity on vitamin D metabolism and tissue distribution in vitamin D deficient or supplemented mice. Nutr Metab (Lond) 2020; 17:44. [PMID: 32549901 PMCID: PMC7294642 DOI: 10.1186/s12986-020-00463-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 05/29/2020] [Indexed: 01/06/2023] Open
Abstract
Background Vitamin D deficiency has been often observed in obese persons. One of the mechanisms suggested for low vitamin D status in obesity was decreased bioavailability of vitamin D (VD) due to sequestration in adipose tissue. However, only few studies have investigated this mechanism via quantifying vitamin D levels from tissues from the obese. Methods Six-wk-old C57BL/6 mice were fed 10 or 45% kcal fat (CON or HFD) diets containing 50, 1000 or 25,000 IU vitamin D3/kg diet (LVd, CVd or HVd) for 13 wks. Serum 25-hydroxyvitamin D (25(OH)D) levels were determined by radioimmunoassay and liver and adipose tissue cholecalciferol (VD3) and 25-hydrocholecalciferol (25(OH)D3) levels were measured by LC-MS/MS. mRNA levels of jejunal Mttp, Cd36, Sr-b1, Npc1l1, and Abca1 and liver and adipose tissue 25-hydroxylases (Cyp2r1 and Cyp27a1) were determined by real-time PCR. Results Serum 25(OH)D levels were affected by dietary vitamin D content but differential effects were observed between HFD and CON groups. When vitamin D intake was at a supplementary level, the HFD-HVd group had lower serum 25(OH)D levels than the CON-HVd group, while there was no significant difference between the HFD and CON groups fed LVd or CVd. Total amount of VD3 in liver and adipose tissue were significantly higher in HFD-HVd group compared with the CON-HVd group. However, no difference in total amount of tissue VD3 was observed between the CON and HFD groups fed CVd. In jejunum, mRNA levels of Mttp and Abca1 were significantly higher in HFD groups than CON groups. There was no difference in mRNA levels of liver 25-hydroxylases by both dietary fat amount and vitamin D content. Conclusion A significant amount of VD3 seemed to be stored in the liver and adipose tissue when dietary vitamin D is at a supplementation level; thus excess body adiposity could contribute to relatively low serum 25(OH)D level when vitamin D was supplemented.
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Affiliation(s)
- Chan Yoon Park
- Department of Food and Nutrition, College of Human Ecology, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, South Korea
| | - Yongho Shin
- Department of Agricultural Biotechnology, College of Agriculture and Life Science, Seoul National University, Seoul, South Korea
| | - Jeong-Han Kim
- Department of Agricultural Biotechnology, College of Agriculture and Life Science, Seoul National University, Seoul, South Korea
| | - Shuang Zhu
- Department of Food and Nutrition, College of Human Ecology, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, South Korea
| | - Young Sun Jung
- Department of Food and Nutrition, College of Human Ecology, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, South Korea
| | - Sung Nim Han
- Department of Food and Nutrition, College of Human Ecology, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, South Korea.,Research Institute of Human Ecology, Seoul National University, Seoul, South Korea
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Does vitamin D status predict weight gain or increase in waist circumference? Results from the longitudinal Health 2000/2011 Survey. Public Health Nutr 2020; 23:1266-1272. [PMID: 32204746 DOI: 10.1017/s1368980019004403] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
OBJECTIVE To investigate whether vitamin D status predicts weight gain or increase in waist circumference during the 11-year follow-up in general adult population. DESIGN A population-based longitudinal study. SETTING The study was conducted using data from the nationally representative Health 2000/2011 Survey. The analyses were based on regression models adjusted for sociodemographic and lifestyle factors. PARTICIPANTS Weight, waist circumference and vitamin D status (serum 25-hydroxyvitamin D concentration analysed with radioimmunoassay) were measured from 2924 participants aged 30-64 years at baseline. RESULTS In men, low vitamin D status at baseline predicted ≥10 % increase in waist circumference during the follow-up when adjusted for age only (OR for sufficient v. deficient S-25(OH)D 0·41; 95 % CI 0·25, 0·67; P for trend <0·01), but the association with weight gain was only borderline significant. After adjustment for potential confounders, low vitamin D status remained a significant predictor of increase in waist circumference, but the association with weight gain was further attenuated. In women, vitamin D status at baseline did not predict weight gain or increase in waist circumference. CONCLUSIONS Our results suggest that vitamin D insufficiency may be a risk factor of abdominal obesity among men but not among women. In men, it may also increase the risk of weight gain. Further studies are required to confirm these findings and examine potential mechanisms behind them. There is also a possibility that vitamin D is a biomarker of healthy lifestyle rather than an independent risk factor for obesity.
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Kim DH, Meza CA, Clarke H, Kim JS, Hickner RC. Vitamin D and Endothelial Function. Nutrients 2020; 12:E575. [PMID: 32098418 PMCID: PMC7071424 DOI: 10.3390/nu12020575] [Citation(s) in RCA: 130] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 02/19/2020] [Accepted: 02/19/2020] [Indexed: 12/21/2022] Open
Abstract
Vitamin D is known to elicit a vasoprotective effect, while vitamin D deficiency is a risk factor for endothelial dysfunction (ED). ED is characterized by reduced bioavailability of a potent endothelium-dependent vasodilator, nitric oxide (NO), and is an early event in the development of atherosclerosis. In endothelial cells, vitamin D regulates NO synthesis by mediating the activity of the endothelial NO synthase (eNOS). Under pathogenic conditions, the oxidative stress caused by excessive production of reactive oxygen species (ROS) facilitates NO degradation and suppresses NO synthesis, consequently reducing NO bioavailability. Vitamin D, however, counteracts the activity of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase which produces ROS, and improves antioxidant capacity by enhancing the activity of antioxidative enzymes such as superoxide dismutase. In addition to ROS, proinflammatory mediators such as TNF-α and IL-6 are risk factors for ED, restraining NO and eNOS bioactivity and upregulating the expression of various atherosclerotic factors through the NF-κB pathway. These proinflammatory activities are inhibited by vitamin D by suppressing NF-κB signaling and production of proinflammatory cytokines. In this review, we discuss the diverse activities of vitamin D in regulating NO bioavailability and endothelial function.
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Affiliation(s)
- Do-Houn Kim
- Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL 32306, USA; (D.-H.K.); (C.A.M.); (H.C.); (J.-S.K.)
- Center for Advancing Exercise and Nutrition Research on Aging, Florida State University, Tallahassee, FL 32306, USA
| | - Cesar A. Meza
- Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL 32306, USA; (D.-H.K.); (C.A.M.); (H.C.); (J.-S.K.)
| | - Holly Clarke
- Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL 32306, USA; (D.-H.K.); (C.A.M.); (H.C.); (J.-S.K.)
| | - Jeong-Su Kim
- Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL 32306, USA; (D.-H.K.); (C.A.M.); (H.C.); (J.-S.K.)
- Center for Advancing Exercise and Nutrition Research on Aging, Florida State University, Tallahassee, FL 32306, USA
- Institute of Sports Sciences and Medicine, College of Human Sciences, Florida State University, Tallahassee, FL 32306, USA
| | - Robert C. Hickner
- Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL 32306, USA; (D.-H.K.); (C.A.M.); (H.C.); (J.-S.K.)
- Institute of Sports Sciences and Medicine, College of Human Sciences, Florida State University, Tallahassee, FL 32306, USA
- Department of Biokinetics, Exercise and Leisure Sciences, School of Health Sciences, University of KwaZulu-Natal, Westville 4041, South Africa
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Dhas Y, Banerjee J, Damle G, Mishra N. Serum 25(OH)D concentration and its association with inflammation and oxidative stress in the middle-aged Indian healthy and diabetic subjects. Steroids 2020; 154:108532. [PMID: 31672627 DOI: 10.1016/j.steroids.2019.108532] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 10/18/2019] [Accepted: 10/24/2019] [Indexed: 12/14/2022]
Abstract
BACKGROUND Vitamin D deficiency is associated with inflammation and oxidative stress. We have studied the association of 25-hydroxyvitamin D [25(OH)D] with markers of inflammation and oxidative stress. METHODS We have recruited total 180 male and female subjects aged between 30 and 50 years and divided them into two groups as control (n = 90) and T2DM (n = 90). We have measured 25(OH)D concentration, markers of inflammation including interleukin (IL)-6, IL-1β, and tumor necrosis factor-α (TNF-α) and markers of oxidative stress including malondialdehyde (MDA) and oxidized low-density lipoprotein (Ox-LDL) by using standard methods. RESULTS We stratified control and T2DM groups by 25(OH)D concentration and it indicates that in severe deficiency and sufficiency category IL-6, IL-1β, TNF-α, and Ox-LDL were significantly different while in moderate deficiency category only MDA was significantly different, among control and T2DM groups. In an insufficiency category, IL-6, IL-1β, TNF-α, MDA, and Ox-LDL were significantly different among control and T2DM groups. Correlation analysis indicates a negative correlation of 25(OH)D with IL-6, IL-1β, TNF-α, and Ox-LDL among total subjects. Further, logistic regression analysis demonstrated a significant association of different categories of 25(OH)D with IL-6, IL-1β, TNF-α, and Ox-LDL before and after adjustment to body mass index and waist to hip ratio. CONCLUSION This study suggest that vitamin D may have significant implications in the prevention of inflammation and oxidative stress.
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Affiliation(s)
- Yogita Dhas
- Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Lavale, Pune, Maharashtra 412115, India
| | - Joyita Banerjee
- Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Lavale, Pune, Maharashtra 412115, India
| | - Gauri Damle
- Madhunayani Diabetes Care & Eye Laser Centre, Pune, India
| | - Neetu Mishra
- Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Lavale, Pune, Maharashtra 412115, India.
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Vitamin D Ameliorates Fat Accumulation with AMPK/SIRT1 Activity in C2C12 Skeletal Muscle Cells. Nutrients 2019; 11:nu11112806. [PMID: 31744213 PMCID: PMC6893473 DOI: 10.3390/nu11112806] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 11/07/2019] [Accepted: 11/12/2019] [Indexed: 12/22/2022] Open
Abstract
Excessive fat accumulation has been considered as a major contributing factor for muscle mitochondrial dysfunction and its associated metabolic complications. The purpose of present study is to investigate a role of vitamin D in muscle fat accumulation and mitochondrial changes. In differentiated C2C12 muscle cells, palmitic acid (PA) was pretreated, followed by incubation with 1,25-dihyroxyvitamin D (1,25(OH)2D) for 24 h. PA led to a significant increment of triglyceride (TG) levels with increased lipid peroxidation and cellular damage, which were reversed by 1,25(OH)2D. The supplementation of 1,25(OH)2D significantly enhanced PA-decreased mtDNA levels as well as mRNA levels involved in mitochondrial biogenesis such as nuclear respiratory factor 1 (NRF1), peroxisome proliferative activated receptor gamma coactivator-1α (PGC-1α), and mitochondrial transcription factor A (Tfam) in C2C12 myotubes. Additionally, 1,25(OH)2D significantly increased ATP levels and gene expression related to mitochondrial function such as carnitine palmitoyltransferase 1 (CPT1), peroxisome proliferator-activated receptor α (PPARα), very long-chain acyl-CoA dehydrogenase (VLCAD), long-chain acyl-CoA dehydrogenase (LCAD), medium-chain acyl-CoA dehydrogenase (MCAD), uncoupling protein 2 (UCP2), and UCP3 and the vitamin D pathway including 25-dihydroxyvitamin D3 24-hydroxylase (CYP24) and 25-hydroxyvitamin D3 1-alpha-hydroxylase (CYP27) in PA-treated C2C12 myotubes. In addition to significant increment of sirtuin 1 (SIRT1) mRNA expression, increased activation of adenosine monophosphate-activated protein kinase (AMPK) and SIRT1 was found in 1,25(OH)2D-treated C2C12 muscle cells. Thus, we suggest that the observed protective effect of vitamin D on muscle fat accumulation and mitochondrial dysfunction in a positive manner via modulating AMPK/SIRT1 activation.
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Migliaccio S, Di Nisio A, Mele C, Scappaticcio L, Savastano S, Colao A. Obesity and hypovitaminosis D: causality or casualty? INTERNATIONAL JOURNAL OF OBESITY SUPPLEMENTS 2019; 9:20-31. [PMID: 31391922 DOI: 10.1038/s41367-019-0010-8] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Epidemiological studies reported that vitamin D deficiency represents an increasingly widespread phenomenon in various populations. Vitamin D deficiency is considered a clinical syndrome determined by low circulating levels of 25-hydroxyvitamin D (25(OH)D), which is the biologically-inactive intermediate and represents the predominant circulating form. Different mechanisms have been hypothesized to explain the association between hypovitaminosis D and obesity, including lower dietary intake of vitamin D, lesser skin exposure to sunlight, due to less outdoor physical activity, decreased intestinal absorption, impaired hydroxylation in adipose tissue and 25(OH)D accumulation in fat. However, several studies speculated that vitamin D deficiency itself could cause obesity or prevent weight loss. The fat-solubility of vitamin D leads to the hypothesis that a sequestration process occurs in body fat depots, resulting in a lower bioavailability in the obese state. After investigating the clinical aspects of vitamin D deficiency and the proposed mechanisms for low 25(OH)D in obesity, in this manuscript we discuss the possible role of vitamin D replacement treatment, with different formulations, to restore normal levels in individuals affected by obesity, and evaluate potential positive effects on obesity itself and its metabolic consequences. Food-based prevention strategies for enhancement of vitamin D status and, therefore, lowering skeletal and extra-skeletal diseases risk have been widely proposed in the past decades; however pharmacological supplementation, namely cholecalciferol and calcifediol, is required in the treatment of vitamin D insufficiency and its comorbidities. In individuals affected by obesity, high doses of vitamin D are required to normalize serum vitamin D levels, but the different liposolubility of different supplements should be taken into account. Although the results are inconsistent, some studies reported that vitamin D supplementation may have some beneficial effects in people with obesity.
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Affiliation(s)
- Silvia Migliaccio
- Department of Movement, Human and Health Sciences, Unit Endocrinology, University Foro Italico, Roma, Italy
| | - Andrea Di Nisio
- 2Department of Medicine, Operative Unit of Andrology and Medicine of Human Reproduction, University of Padova, Padova, Italy
| | - Chiara Mele
- 3Department of Translational Medicine, University of Piemonte Orientale, Novara, Italy.,4Division of General Medicine, S. Giuseppe Hospital, Istituto Auxologico Italiano, Piancavallo, Verbania, Italy
| | - Lorenzo Scappaticcio
- Division of Endocrinology and Metabolic Diseases, Dept of Medical, Surgical, Neurological, Metabolic Sciences and Aging, University of Campania L. Vanvitelli, Naples, Italy
| | - Silvia Savastano
- 6Department of Medicine and Surgery, Unit of Endocrinology, Federico II University Medical School of Naples, Roma, Italy
| | - Annamaria Colao
- 6Department of Medicine and Surgery, Unit of Endocrinology, Federico II University Medical School of Naples, Roma, Italy
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Szymczak-Pajor I, Śliwińska A. Analysis of Association between Vitamin D Deficiency and Insulin Resistance. Nutrients 2019; 11:E794. [PMID: 30959886 PMCID: PMC6520736 DOI: 10.3390/nu11040794] [Citation(s) in RCA: 153] [Impact Index Per Article: 30.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 03/31/2019] [Accepted: 04/01/2019] [Indexed: 02/06/2023] Open
Abstract
Recent evidence revealed extra skeleton activity of vitamin D, including prevention from cardiometabolic diseases and cancer development as well as anti-inflammatory properties. It is worth noting that vitamin D deficiency is very common and may be associated with the pathogenesis of insulin-resistance-related diseases, including obesity and diabetes. This review aims to provide molecular mechanisms showing how vitamin D deficiency may be involved in the insulin resistance formation. The PUBMED database and published reference lists were searched to find studies published between 1980 and 2019. It was identified that molecular action of vitamin D is involved in maintaining the normal resting levels of ROS and Ca2+, not only in pancreatic β-cells, but also in insulin responsive tissues. Both genomic and non-genomic action of vitamin D is directed towards insulin signaling. Thereby, vitamin D reduces the extent of pathologies associated with insulin resistance such as oxidative stress and inflammation. More recently, it was also shown that vitamin D prevents epigenetic alterations associated with insulin resistance and diabetes. In conclusion, vitamin D deficiency is one of the factors accelerating insulin resistance formation. The results of basic and clinical research support beneficial action of vitamin D in the reduction of insulin resistance and related pathologies.
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Affiliation(s)
- Izabela Szymczak-Pajor
- Department of Nucleic Acid Biochemistry, Medical University of Lodz, 251 Pomorska, 92-213 Lodz, Poland.
| | - Agnieszka Śliwińska
- Department of Nucleic Acid Biochemistry, Medical University of Lodz, 251 Pomorska, 92-213 Lodz, Poland.
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Byrn MA, Sheean PM. Serum 25(OH)D and Cognition: A Narrative Review of Current Evidence. Nutrients 2019; 11:E729. [PMID: 30934861 PMCID: PMC6520924 DOI: 10.3390/nu11040729] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 03/26/2019] [Accepted: 03/26/2019] [Indexed: 12/18/2022] Open
Abstract
The effect of low serum 25(OH)D on cognitive function is difficult to determine owing to the many factors that can influence these relationships (e.g., measurements, study design, and obesity). The primary purpose of this review was to synthesize the current evidence on the association between serum 25(OH)D and cognition giving special consideration to specific influential factors. A search was conducted in PubMed for studies published between 2010 and 2018 using terms related to serum 25(OH)D and cognition. Only studies that used liquid chromatography tandem-mass spectrometry (LC-MS) were included, since this is considered the 'gold standard method', to measure serum 25(OH)D. Of the 70 articles evaluated, 13 met all inclusion criteria for this review. The majority of the observational and longitudinal studies demonstrate a significant association between low serum 25(OH)D and compromised cognition. However, two randomized controlled trials showed inconsistent results on the impact of vitamin D supplementation on cognitive function. The varied methodologies for ascertaining cognition and the inclusion or exclusion of confounding variables (e.g., obesity, sunlight exposure) in the statistical analyses make drawing conclusions on the association between serum 25(OH)D and cognitive functioning inherently difficult. Despite the known higher occurrence of serum 25(OH) deficiency among minority populations, the majority of studies were conducted in with White participants. In order to more clearly discern the relationship between serum 25(OH)D and cognitive functioning, future studies should target more diverse study populations and utilize comprehensive measures to reliably capture cognition, as well as important known determinants of serum 25(OH)D.
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Affiliation(s)
- Mary A Byrn
- School of Nursing, Loyola University Chicago, 1032 W Sheridan Rd, Chicago, IL 60660, USA.
| | - Patricia M Sheean
- School of Nursing, Loyola University Chicago, 1032 W Sheridan Rd, Chicago, IL 60660, USA.
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Merino O, Sánchez R, Gregorio M, Sampaio F, Risopatrón J. Effect of high-fat and vitamin D deficient diet on rat sperm quality and fertility. Theriogenology 2019; 125:6-11. [DOI: 10.1016/j.theriogenology.2018.09.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 09/13/2018] [Accepted: 09/26/2018] [Indexed: 02/07/2023]
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Mazzoleni S, Magni G, Toderini D. Effect of vitamin D3 seasonal supplementation with 1500 IU/day in north Italian children (DINOS study). Ital J Pediatr 2019; 45:18. [PMID: 30691521 PMCID: PMC6350345 DOI: 10.1186/s13052-018-0590-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 11/22/2018] [Indexed: 12/20/2022] Open
Abstract
Background The appropriate dose of vitamin D supplementation in children is still debated. We calculated that the recommended dose of 600–1000 IU vitamin D3/day is not sufficient to reach a serum 25-hydroxyvitamin D (25-OH-D) level of at least 30 ng/ml (75 nmol/l) in north Italian children > 12 months. The aim of this study was to analyse the effect of seasonal supplementation with 1500 IU (=37.5 μg) vitamin D3/day. Methods DINOS (D-vitamIN Oral Supplementation) study was a pilot, monocentric, non-random case-control register study. It was conducted in a paediatric primary care setting near Padova (North Italy, 45°N latitude). The data of 203 children (girls:boys 1:1,33) aged 2–15 years, collected between November 2010 and January 2015, were analysed. Active group A (n = 82) were given 1500 IU vitamin D3/day from November to April; control Group B (n = 121) received no supplementation. The serum 25-OH-D test was part of a laboratory tests panel and performed using a chemiluminescence immunoassay method. Results Serum 25-OH-D mean level + standard deviation throughout the period was 32 + 13 ng/ml (80 + 32 nmol/l) in group A vs 22 + 10 ng/ml (55 + 25 nmol/l) in group B. In group A 12% had vitamin D deficiency 25-OH-D < 20 ng/ml (50 nmol/l) and 1.2% severe vitamin D deficiency 25-OH-D < 10 ng/ml (25 nmol/l). In group B 46% had vitamin D deficiency and 9% severe deficiency (P < 0.001). In group A mean levels were normal or near-normal all the year except in May. Group B reached mean 25-OH-D levels close to 30 ng/ml (75 nmol/l) only in late summer. The active group mean 25-OH-D level was normal in preschoolers and schoolers but not in adolescents. Non-white children had a three-times vitamin D deficiency probability despite supplementation. Conclusions Vitamin D supplementation with at least 1500 IU vitamin D3/day from November to April was found appropriate for children in North Italy. A prolongation until May could be useful. Higher doses and/or prolonged periods could be more appropriate especially in adolescents and in non-white children. Study registration DINOS gained the approval of Padova Ethics Committee (n. 3960/U16/2016). Electronic supplementary material The online version of this article (10.1186/s13052-018-0590-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Stefano Mazzoleni
- Primary Care Paediatrician Azienda ULSS 6 Euganea Regione Veneto, Polistudio Pediatrico, via D'Annunzio 3/A, Piove di Sacco, Padova, Italy.
| | - Giovanna Magni
- Senior Biostatistician, NRC Azienda Ospedaliera Padova, Padova, Italy.,Unità di Ricerca Clinica, Istituto Oncologico Veneto, Padova, Italy
| | - Daniela Toderini
- Endocrinologist and General Practitioner Azienda ULSS 6 Euganea Regione Veneto, Studio via Benizzi 6, Padova, Italy
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Wang Y, Buckendahl P, Sharma K, Miller JW, Shapses SA. Expression of vitamin D hydroxylases and bone quality in obese mice consuming saturated or monounsaturated enriched high-fat diets. Nutr Res 2018; 60:106-115. [DOI: 10.1016/j.nutres.2018.08.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Revised: 07/31/2018] [Accepted: 08/30/2018] [Indexed: 02/06/2023]
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Davis EM, Peck JD, Hansen KR, Neas BR, Craig LB. Associations between vitamin D levels and polycystic ovary syndrome phenotypes. MINERVA ENDOCRINOL 2018; 44:176-184. [PMID: 29652114 DOI: 10.23736/s0391-1977.18.02824-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Studies comparing serum 25-hydroxyvitamin D concentrations in women with and without polycystic ovary syndrome (PCOS) have produced inconsistent results. Additionally, no previous studies have evaluated associations between vitamin D and specific PCOS phenotypes. METHODS This case-control study was conducted among women undergoing intrauterine insemination. Cases (N.=137) were diagnosed with PCOS and then further classified into 3 diagnostic phenotypes based on combinations of the Rotterdam criteria (ovulatory dysfunction+polycystic ovaries [N.=55]; ovulatory dysfunction +androgen excess [N.=15]; and ovulatory dysfunction, +polycystic ovaries, +androgen excess [N.=67]). Controls (N.=103) were ovulatory women without PCOS who were undergoing IUI. Serum total 25-hydroxyvitamin D concentrations were categorized as deficient (≤20 ng/mL), insufficient (21-29 ng/mL), and sufficient (≥30 ng/mL). Prevalence odds ratios (PORs) were calculated using logistic regression. RESULTS A higher proportion (59.9%) of PCOS cases lacked sufficient vitamin D levels compared to controls (47.6%; P value=0.06). The odds of vitamin D deficiency in all PCOS cases were twice that of controls (POR=2.03, 95% CI 0.97-4.26); however, the association was attenuated after adjusting for Body Mass Index (BMI) and race/ethnicity (adjPOR=1.43, 95% CI 0.62, 3.26). When examining PCOS phenotypes exhibiting androgen excess, crude associations were observed for deficient vitamin D levels (unadjPOR=2.93, 95% CI: 1.27, 6.77); however, the association decreased after adjustment for BMI and race/ethnicity (adjPOR=2.03, 95% CI: 0.79, 5.19). CONCLUSIONS Vitamin D deficiency occurred more frequently in PCOS cases with androgen excess, but associations were attenuated after adjusting for BMI and race/ethnicity. Combining etiologically distinct PCOS subgroups may obscure associations with lower vitamin D levels and other potential risk factors.
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Affiliation(s)
- Erin M Davis
- Department of Anatomical Sciences and Neurobiology, University of Louisville, Louisville, KY, USA -
| | - Jennifer D Peck
- Department of Biostatistics and Epidemiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Karl R Hansen
- , Section of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Barbara R Neas
- Department of Biostatistics and Epidemiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - LaTasha B Craig
- , Section of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
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Abstract
PURPOSE This study aimed to investigate the role of sclerostin and dkk1 in the bone metabolism of type 2 diabetic patients. METHODS This cross-sectional study included 95 inpatients with type 2 diabetes mellitus. We divided the patients into three groups (i.e., the normal bone mineral density (BMD) group, osteopenia group and osteoporosis group) based on their different BMD levels and measured the serum levels of sclerostin, dkk1, 25-hydroxyvitamin D3 (25OHD3), bone turnover markers and other biochemical data in each group. RESULTS Significantly increased levels of serum sclerostin and dkk1 were found in the osteoporosis group, even when the male and female cohorts were considered separately. Ordinal logistic regression analysis suggested that the levels of serum sclerostin were independently associated with the presence of osteopenia and osteoporosis after adjusting for age, gender and 25OHD3 (sclerostin: OR = 1.02, p = 0.001). The areal BMDs were negatively correlated with the levels of serum sclerostin and dkk1 and positively correlated with 25OHD3. In addition, age, glycosylated hemoglobin and serum sclerostin levels were predictors for N-terminal propeptide of type 1 procollagen and serum dkk1 levels were the only predictors for crosslinked carboxyterminal telopeptide in type 1 collagen. CONCLUSIONS The sclerostin and dkk1 levels increased in conjunction with the reduction of BMD, confirming that the Wnts, inhibited by sclerostin and dkk1, were potentially responsible for bone fragility in type 2 diabetes patients with osteoporosis. Note that the serum sclerostin levels were predictors for bone formation, while the DKK1 levels predicted bone resorption.
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Affiliation(s)
- Na Wang
- a Department of Endocrinology , The Third Hospital of Hebei Medical University , Shijiazhuang , China
- b Key Laboratory of Orthopedic Biomechanics of Hebei Province , The Third Hospital of Hebei Medical University , Shijiazhuang , China
| | - Peng Xue
- a Department of Endocrinology , The Third Hospital of Hebei Medical University , Shijiazhuang , China
- b Key Laboratory of Orthopedic Biomechanics of Hebei Province , The Third Hospital of Hebei Medical University , Shijiazhuang , China
| | - Xuelun Wu
- a Department of Endocrinology , The Third Hospital of Hebei Medical University , Shijiazhuang , China
- b Key Laboratory of Orthopedic Biomechanics of Hebei Province , The Third Hospital of Hebei Medical University , Shijiazhuang , China
| | - Jianxia Ma
- a Department of Endocrinology , The Third Hospital of Hebei Medical University , Shijiazhuang , China
- b Key Laboratory of Orthopedic Biomechanics of Hebei Province , The Third Hospital of Hebei Medical University , Shijiazhuang , China
| | - Yan Wang
- a Department of Endocrinology , The Third Hospital of Hebei Medical University , Shijiazhuang , China
- b Key Laboratory of Orthopedic Biomechanics of Hebei Province , The Third Hospital of Hebei Medical University , Shijiazhuang , China
| | - Yukun Li
- a Department of Endocrinology , The Third Hospital of Hebei Medical University , Shijiazhuang , China
- b Key Laboratory of Orthopedic Biomechanics of Hebei Province , The Third Hospital of Hebei Medical University , Shijiazhuang , China
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Wang Q, Zhu Z, Liu Y, Tu X, He J. Relationship between serum vitamin D levels and inflammatory markers in acute stroke patients. Brain Behav 2018; 8:e00885. [PMID: 29484258 PMCID: PMC5822590 DOI: 10.1002/brb3.885] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 10/13/2017] [Accepted: 11/01/2017] [Indexed: 02/06/2023] Open
Abstract
Introduction Low serum vitamin D levels are associated with the development of poststroke depression (PSD). Inflammatory markers play an important role in pathophysiology of PSD. The relationship between vitamin D levels and inflammatory markers has been discussed in nonstroke individuals. The purposes of this study were to explore the relationship between vitamin D levels and inflammatory markers in acute stroke patients and examine the effect of vitamin D and inflammatory markers on PSD. Methods A total of 152 acute stroke patients were recruited. Serum levels of 25-hydroxyvitamin D and inflammatory markers were measured by standardized laboratory methods. Depression symptoms were assessed with the 17-item Hamilton Depression Scale (HAMD-17). Patients with the HAMD-17 scores ≥7 were identified to have depression symptoms. Results Serum vitamin D levels were negatively correlated with serum levels of interleukin-6 and high-sensitivity C-reactive protein (hsCRP) (r = -.244, p = .002; r = -.231, p = .004). Multiple regression analysis showed that interleukin-6 and hsCRP levels were associated with vitamin D levels (B = -0.355, p = .003; B = -2.085, p = .006), whereas age, height, weight, leukocyte count, neutrophil ratio, and lymphocyte rate could be omitted without changing the results. In multivariate analyses, the serum levels of vitamin D and interleukin-6 were associated with the development of PSD after adjusted possible variables (OR = 0.976, 95% CI: 0.958-0.994, p = .009; OR = 1.029, 95% CI: 1.003-1.055, p = .027). Conclusions Serum vitamin D levels are inversely associated with the levels of interleukin-6 and hsCRP, suggesting a potential anti-inflammatory role for vitamin D in stroke individuals.
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Affiliation(s)
- Qiongzhang Wang
- Department of NeurologyThe First Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiang ProvinceChina
| | - Zhuoying Zhu
- Department of NeurologyThe First Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiang ProvinceChina
| | - Yuntao Liu
- Department of NeurologyThe First Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiang ProvinceChina
| | - Xinjie Tu
- Department of NeurologyThe First Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiang ProvinceChina
| | - Jincai He
- Department of NeurologyThe First Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiang ProvinceChina
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Oussedik-Lehtihet S, Haouichat C, Hammoumraoui N, Ducros E, Gouhier-Kodas C, Lancrenon S, Djoudi H. Hypovitaminosis D and Its Associated Factors in North Algerian Postmenopausal Women: Results of a Cross-Sectional Study. J Nutr Metab 2017; 2017:9032141. [PMID: 29391950 PMCID: PMC5748113 DOI: 10.1155/2017/9032141] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 10/06/2017] [Accepted: 10/29/2017] [Indexed: 01/21/2023] Open
Abstract
PURPOSE As the vitamin D status of Algerian postmenopausal women was poorly described, this cross-sectional study investigated the prevalence of low vitamin D status in a sample population. Secondarily, predictive factors of this hypovitaminosis D were explored. METHODS All the 336 selected women ≥ 45 years from Douera were interviewed to get anthropometric and lifestyle data, reproductive and medical history, medications, and calcium/vitamin D intakes. A blood sample was collected to measure 25-hydroxyvitamin D (25(OH)D) concentrations. RESULTS Approximately 86% of subjects had low vitamin D status (<20 ng/mL). Mean 25(OH)D level was 14.4 ± 5.3 ng/mL with a clear seasonal dynamic and a significant negative correlation with PTH levels (r = -0.15, p=0.006). A multiple regression analysis using the 25(OH)D cutoff value of 17 ng/mL instead of the generally admitted level of 20 ng/mL was performed to increase statistical power. Other seasons than summer (OR 4.159 and 95% CI 2.456-7.043), obesity (≥30 kg/m2, OR 1.826, 95% CI 1.081-3.083), and veiling (OR 3.526, 95% CI 1.090-11.400) were significantly associated with 25(OH)D concentrations <17 ng/mL. CONCLUSIONS In North Algeria, the abundant sunlight appears insufficient to fully offset hypovitaminosis D risk factors in postmenopausal women, especially obesity and veiling. It suggests the major need to increase vitamin D supplementation in this subpopulation.
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Affiliation(s)
- S. Oussedik-Lehtihet
- Centre Hospitalier Universitaire de Douera, Rue des Frères Halim, Douera 16000, Alger, Algeria
| | - C. Haouichat
- Centre Hospitalier Universitaire de Douera, Rue des Frères Halim, Douera 16000, Alger, Algeria
| | - N. Hammoumraoui
- Centre Hospitalier Universitaire de Douera, Rue des Frères Halim, Douera 16000, Alger, Algeria
| | - E. Ducros
- Laboratoire Innotech International, 22 Avenue Aristide Briand, 94110 Arcueil, France
| | - C. Gouhier-Kodas
- Laboratoire Innotech International, 22 Avenue Aristide Briand, 94110 Arcueil, France
| | - S. Lancrenon
- Sylia-Stat, 10 Boulevard du Maréchal Joffre, 92340 Bourg-la-Reine, France
| | - H. Djoudi
- Centre Hospitalier Universitaire de Douera, Rue des Frères Halim, Douera 16000, Alger, Algeria
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Kaddam IM, Al-Shaikh AM, Abaalkhail BA, Asseri KS, Al-Saleh YM, Al-Qarni AA, Al-Shuaibi AM, Tamimi WG, Mukhtar AM. Prevalence of vitamin D deficiency and its associated factors in three regions of Saudi Arabia. Saudi Med J 2017; 38:381-390. [PMID: 28397944 PMCID: PMC5447190 DOI: 10.15537/smj.2017.4.18753] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Objectives: To measure prevalence of vitamin D deficiency in Saudi Arabia, unveil the life style, nutritional habits and status, as well as identify the potential risk factors. Method: A school-based survey targeting Saudi school students and employees was conducted during the period from 2013 to 2014 using multistage cluster random sample in Central, Western and Eastern regions. The prevalence of vitamin D deficiency and difference between various population subgroups were calculated. Logistic regression analysis was used to determine the predictors of potential risk factors. Results: Prevalence of vitamin D deficiency was 49.5% in students and 44% in employees. Life style was not adequate to protect against vitamin D depletion. Unhealthy nutritional habits were widespread, some manifested in childhood while others manifested later in life. Living in the Eastern region, females, 16-19 years of age, low economic class, obese and lack of omega 3 supplements were risk factors in students. Employees living in the Eastern region, females, middle-income class, carbonated soft drink consumers, and lack of multivitamin supplements were at higher risk. Conclusion: There is a need for a health awareness program using evidence-based recommendations. Screening for early detection and correction of the condition should be proposed to be part of the national health strategy. There is need for identifying the burden of vitamin D deficiency on other diseases to control and improve the prognosis of these conditions.
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Affiliation(s)
- Ibrahim M Kaddam
- Department of Pathology, King Abdulaziz Medical City, Jeddah, Kingdom of Saudi Arabia. E-mail.
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Manios Y, Moschonis G, Lambrinou CP, Tsoutsoulopoulou K, Binou P, Karachaliou A, Breidenassel C, Gonzalez-Gross M, Kiely M, Cashman KD. A systematic review of vitamin D status in southern European countries. Eur J Nutr 2017; 57:2001-2036. [PMID: 29090332 DOI: 10.1007/s00394-017-1564-2] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 10/07/2017] [Indexed: 12/16/2022]
Abstract
PURPOSE Despite an acknowledged dearth of data on serum 25-hydroxyvitamin D (25(OH)D) concentrations from Southern European countries, inter-country comparison is hampered by inconsistent data reporting. The purpose of the current study was to conduct a systematic literature review of available data on serum 25(OH)D concentrations and estimate vitamin D status in Southern European and Eastern Mediterranean countries, both at a population level and within key population subgroups, stratified by age, sex, season and country. METHODS A systematic review of the literature was conducted to identify and retrieve scientific articles reporting data on serum 25(OH)D concentration and/or vitamin D status following standard procedures. RESULTS Data were extracted from 107 studies, stratified by sex and age group, representing 630,093 individuals. More than one-third of the studies reported mean 25(OH)D concentrations below 50 nmol/L and ~ 10% reported mean serum 25(OH)D concentrations below 25 nmol/L. Overall, females, neonates/ infants and adolescents had the higher prevalence of poor vitamin D status. As expected, there was considerable variability between studies. Specifically, mean 25(OH)D ranged from 6.0 (in Italian centenarians) to 158 nmol/L (in elderly Turkish men); the prevalence of serum 25(OH)D < 50 nmol/L ranged from 6.8 to 97.9% (in Italian neonates). CONCLUSIONS Contrary to expectations, there was a high prevalence of low vitamin D status in the Southern Europe and the Eastern Mediterranean regions, despite abundant sunshine. These data further emphasize the need for strategies, such as fortification of foods with vitamin D and/or vitamin D supplementation, which will be tailored to the needs of specific population groups with higher risk of insufficiency or deficiency, to efficiently tackle the pandemic of hypovitaminosis D in Europe.
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Affiliation(s)
- Yannis Manios
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, 70 El Venizelou Avenue, Kallithea, 17671, Athens, Greece.
| | - George Moschonis
- Department of Rehabilitation, Nutrition and Sport, College of Science, Health and Engineering, La Trobe University, Bundoora, 3086, Melbourne, Australia
| | - Christina-Paulina Lambrinou
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, 70 El Venizelou Avenue, Kallithea, 17671, Athens, Greece
| | - Konstantina Tsoutsoulopoulou
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, 70 El Venizelou Avenue, Kallithea, 17671, Athens, Greece
| | - Panagiota Binou
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, 70 El Venizelou Avenue, Kallithea, 17671, Athens, Greece
| | - Alexandra Karachaliou
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, 70 El Venizelou Avenue, Kallithea, 17671, Athens, Greece
| | - Christina Breidenassel
- ImFINE Research Group, Department of Health and Human Performance, Universidad Politécnica de Madrid, Madrid, Spain
| | - Marcela Gonzalez-Gross
- ImFINE Research Group, Department of Health and Human Performance, Universidad Politécnica de Madrid, Madrid, Spain
| | - Mairead Kiely
- Cork Centre for Vitamin D and Nutrition Research, School of Food and Nutritional Sciences, University College Cork, Cork, Ireland.,The Irish Centre for Fetal and Neonatal Translational Research (INFANT), University College Cork, Cork, Ireland
| | - Kevin D Cashman
- Cork Centre for Vitamin D and Nutrition Research, School of Food and Nutritional Sciences, University College Cork, Cork, Ireland.,Department of Medicine, University College Cork, Cork, Ireland
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47
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Vitamin D deficiency impairs testicular development and spermatogenesis in mice. Reprod Toxicol 2017; 73:241-249. [DOI: 10.1016/j.reprotox.2017.06.047] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 05/31/2017] [Accepted: 06/14/2017] [Indexed: 11/23/2022]
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48
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Cordeiro A, Pereira S, Saboya CJ, Ramalho A. Relationship between Nonalcoholic Fatty Liver Disease and Vitamin D Nutritional Status in Extreme Obesity. Can J Gastroenterol Hepatol 2017; 2017:9456897. [PMID: 28685131 PMCID: PMC5480021 DOI: 10.1155/2017/9456897] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 04/24/2017] [Accepted: 05/25/2017] [Indexed: 02/06/2023] Open
Abstract
AIM To evaluate the relationship of nonalcoholic fatty liver disease (NAFLD) with nutritional status of vitamin D in extreme obesity. METHODS Descriptive cross-sectional study in individuals with class III obesity (BMI ≥ 40 kg/m2), aged ≥ 20 years to < 60 years. Data were obtained for weight, height, waist circumference (WC), and serum 25-hydroxyvitamin D (25(OH)D) levels. Vitamin D analysis was performed by high performance liquid chromatography (HPLC) and the cutoff points used for its classification were < 20 ng/mL for deficiency and 20-29.9 ng/ml for insufficiency. NAFLD gradation was conducted through histological evaluation by liver biopsy. RESULTS The sample is comprised of 50 individuals (86% female). BMI and average weight were 44.1 ± 3.8 kg/m2 and 121.4 ± 21.4 kg, respectively. Sample distribution according to serum 25(OH)D levels showed 42% of deficiency and 48% of insufficiency. The diagnosis of NAFLD was confirmed in 100% of the individuals, of which 70% had steatosis and 30% had steatohepatitis. The highest percentage of 25(OH)D insufficiency was seen in individuals with steatosis (66%/n = 21) and steatohepatitis (93%/n = 16). All individuals with steatohepatitis presented VDD (p < 0.01). CONCLUSION The results of this study showed high prevalence of serum 25(OH)D inadequacy in individuals with class III obesity, which worsens as the stage of liver disease progresses.
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Affiliation(s)
- Adryana Cordeiro
- Micronutrients Research Center, Federal University of Rio de Janeiro, 21941-590 Rio de Janeiro, RJ, Brazil
| | - Silvia Pereira
- Micronutrients Research Center, Federal University of Rio de Janeiro, 21941-590 Rio de Janeiro, RJ, Brazil
| | - Carlos José Saboya
- Multidisciplinary Center of Bariatric and Metabolic Surgery, 22280-020 Rio de Janeiro, RJ, 22280-020, Brazil
| | - Andrea Ramalho
- Micronutrients Research Center, Federal University of Rio de Janeiro, 21941-590 Rio de Janeiro, RJ, Brazil
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49
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Cetinkaya M, Erener-Ercan T, Kalayci-Oral T, Babayiğit A, Cebeci B, Semerci SY, Buyukkale G. Maternal/neonatal vitamin D deficiency: a new risk factor for necrotizing enterocolitis in preterm infants? J Perinatol 2017; 37:673-678. [PMID: 28333154 DOI: 10.1038/jp.2017.18] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 12/20/2016] [Accepted: 01/12/2017] [Indexed: 12/19/2022]
Abstract
OBJECTIVE The objective of the study was to investigate the possible association between maternal/neonatal 25-hydroxy vitamin D (25-OHD) levels and development of necrotizing enterocolitis (NEC). STUDY DESIGN One hundred and forty-five preterm infants ⩽36 weeks of gestation were enrolled. 25-OHD levels were determined in maternal/neonatal blood samples that were obtained at the time of admission to the neonatal intensive care unit. RESULTS Of the 145 enrolled patients, 26 (18%) developed NEC. Maternal/neonatal 25-OHD levels in the NEC group were significantly lower than those of the no-NEC group (P=0.001 and 0.004, respectively). In univariate logistic regression analysis, both maternal/neonatal vitamin D levels were a significant predictor of NEC (odds ratio (OR): 0.92 and 0.89; P<0.001 and P<0.005, respectively). However, multivariate logistic regression analysis revealed that only maternal vitamin D level was a significant predictor of NEC (OR: 0.86, P<0.0009). CONCLUSION This is the first study to propose a possible association between maternal/neonatal 25-OHD levels and subsequent development of NEC in preterm infants.
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Affiliation(s)
- M Cetinkaya
- Department of Neonatology, Kanuni Sultan Suleyman Teaching and Research Hospital, Istanbul, Turkey
| | - T Erener-Ercan
- Faculty of Medicine, Department of Neonatology, Maltepe University, Istanbul, Turkey
| | - T Kalayci-Oral
- Department of Neonatology, Kanuni Sultan Suleyman Teaching and Research Hospital, Istanbul, Turkey
| | - A Babayiğit
- Department of Neonatology, Kanuni Sultan Suleyman Teaching and Research Hospital, Istanbul, Turkey
| | - B Cebeci
- Department of Neonatology, Kanuni Sultan Suleyman Teaching and Research Hospital, Istanbul, Turkey
| | - S Y Semerci
- Department of Neonatology, Kanuni Sultan Suleyman Teaching and Research Hospital, Istanbul, Turkey
| | - G Buyukkale
- Department of Neonatology, Kanuni Sultan Suleyman Teaching and Research Hospital, Istanbul, Turkey
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Garbossa SG, Folli F. Vitamin D, sub-inflammation and insulin resistance. A window on a potential role for the interaction between bone and glucose metabolism. Rev Endocr Metab Disord 2017; 18:243-258. [PMID: 28409320 DOI: 10.1007/s11154-017-9423-2] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Vitamin D is a key hormone involved in the regulation of calcium/phosphorous balance and recently it has been implicated in the pathogenesis of sub-inflammation, insulin resistance and obesity. The two main forms of vitamin D are cholecalciferol (Vitamin D3) and ergocalciferol (Vitamin D2): the active form (1,25-dihydroxyvitamin D) is the result of two hydroxylations that take place in liver, kidney, pancreas and immune cells. Vitamin D increases the production of some anti-inflammatory cytokines and reduces the release of some pro-inflammatory cytokines. Low levels of Vitamin D are also associated with an up-regulation of TLRs expression and a pro-inflammatory state. Regardless of the effect on inflammation, Vitamin D seems to directly increase insulin sensitivity and secretion, through different mechanisms. Considering the importance of low grade chronic inflammation in metabolic syndrome, obesity and diabetes, many authors hypothesized the involvement of this nutrient/hormone in the pathogenesis of these diseases. Vitamin D status could alter the balance between pro and anti-inflammatory cytokines and thus affect insulin action, lipid metabolism and adipose tissue function and structure. Numerous studies have shown that Vitamin D concentrations are inversely associated with pro-inflammatory markers, insulin resistance, glucose intolerance and obesity. Interestingly, some longitudinal trials suggested also an inverse association between vitamin D status and incident type 2 diabetes mellitus. However, vitamin D supplementation in humans showed controversial effects: with some studies demonstrating improvements in insulin sensitivity, glucose and lipid metabolism while others showing no beneficial effect on glycemic control and on inflammation. In conclusion, although the evidences of a significant role of Vitamin D on inflammation, insulin resistance and insulin secretion in the pathogenesis of obesity, metabolic syndrome and type 2 diabetes, its potential function in treatment and prevention of type 2 diabetes mellitus is unclear. Encouraging results have emerged from Vitamin D supplementation trials on patients at risk of developing diabetes and further studies are needed to fully explore and understand its clinical applications.
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Affiliation(s)
- Stefania Giuliana Garbossa
- Department of Internal Medicine, Azienda Socio Sanitaria Territoriale Santi Paolo e Carlo, Ospedale San Paolo, Via A. Di Rudini 8, Milan, 20142, Italy
- Program in Nutritional Science, Universitá degli Studi di Milano, Milan, Italy
| | - Franco Folli
- Department of Internal Medicine, Azienda Socio Sanitaria Territoriale Santi Paolo e Carlo, Ospedale San Paolo, Via A. Di Rudini 8, Milan, 20142, Italy.
- Endocrinology and Metabolism, Department of Health Science, Universitá degli Studi di Milano, San Paolo Hospital, Room #737, Via A. Di Rudiní 8, 20142, Milan, Italy.
- Department of Medicine, Diabetes Division, University of Texas Health System, 7703 Floyd Curl Drive, San Antonio, 78229, TX, USA.
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