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Song X, Qin S, Chen S, Zhang C, Lin L, Song Z. Bibliometric analysis of vitamin D and obesity research over the period 2000 to 2023. Front Pharmacol 2024; 15:1445061. [PMID: 39092232 PMCID: PMC11291317 DOI: 10.3389/fphar.2024.1445061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Accepted: 07/02/2024] [Indexed: 08/04/2024] Open
Abstract
Background Globally, the incidence rates of obesity and its related diseases, such as cardiovascular diseases and type 2 diabetes, are continuously rising, posing a significant public health challenge. Studies have indicated a potential correlation between vitamin D deficiency and obesity. However, a quantitative analysis of the studies related vitamin D and obesity is lacking. This investigation aims to fill this gap by providing a comprehensive bibliometric analysis to uncover the collaborative networks, research hotspots, and evolutionary trends within the field of vitamin D and obesity research. Methods This study retrieved literature related to vitamin D and obesity from the Web of Science database spanning from 2000 to 2023. Bibliometric analysis was conducted using tools such as HistCite, VOSviewer, and CiteSpace to excavate multi-dimensional information including countries, institutions, authors, journals, citations, and keywords. Results A total of 6,144 records were retrieved, involving 123 countries, 6,726 institutions, and 28,156 authors, published in 1,551 journals. The number of published papers and citations showed a generally increasing trend. The United States led in terms of publication volume and influence, with journals such as Nutrients and Obesity Surgery having the highest publication counts. Nasser M. Al-Daghri was the most prolific and influential author. Keyword clustering revealed that research topics covered metabolic health, nutrition, immunity, and bariatric surgery. Citation burst analysis indicated a shift in research focus from the relationship between dietary calcium and obesity to the preventive effects of vitamin D supplementation on metabolic diseases. Conclusion The application of bibliometric methods to analyze the research literature in the fields of obesity and vitamin D has provided a comprehensive understanding of the collaborative networks, key research focus, and evolutionary trends in this field, offering insights for guiding future research directions.
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Affiliation(s)
- Xudong Song
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Senhua Qin
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Shuxin Chen
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Can Zhang
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Lin Lin
- Department of Gynecology, The Reproductive Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Ziyi Song
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, College of Animal Science and Technology, Guangxi University, Nanning, China
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Mejaddam A, Höskuldsdóttir G, Lenér F, Wallenius V, Trimpou P, Fändriks L, Mossberg K, Eliasson B, Landin-Wilhelmsen K. Effects of medical and surgical treatment on vitamin D levels in obesity. PLoS One 2023; 18:e0292780. [PMID: 38134006 PMCID: PMC10745143 DOI: 10.1371/journal.pone.0292780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 09/27/2023] [Indexed: 12/24/2023] Open
Abstract
INTRODUCTION Persons living with obesity treated with bariatric surgery are at a high risk of developing nutritional deficiencies. The primary aim of this observational cohort study was to compare vitamin D levels in patients two years after bariatric surgery (Roux-en-Y gastric bypass/RYGB and sleeve gastrectomy/SG) with a very low-energy diet (VLED). The same subjects were also compared with a population sample from the same region at baseline. The primary hypothesis was that surgery, especially RYGB, would lead to an increased prevalence of vitamin D deficiency compared to subjects treated with VLED. 971 individuals eligible for surgical, RYGB (n = 388), SG (n = 201), and medical treatment (n = 382), in routine care, were included consecutively between 2015 and 2017. A random population sample from the WHO-MONICA project was used as a reference, (n = 414). S-calcium, S-25(OH)D (vitamin D), and S-PTH (parathyroid hormone) were measured in all persons with obesity at baseline and two years after treatment (n = 713). Self-reported use of vitamin D and calcium supplementation was registered. RESULTS Vitamin D deficiency (S-25(OH)D <25mmol/l) was found in 5.2% of the persons with obesity at baseline versus 1.7% of the general population (SMD>0.1). S-25(OH)D increased for all treatment groups but was higher in RYGB and SG (SMD>0.1, standardized mean difference). Thirteen subjects (1.8%) had vitamin D deficiency after obesity treatment. CONCLUSION Surgical intervention for obesity followed by vitamin D supplementation was not associated with a higher risk for vitamin D deficiency, irrespective of surgery type, compared to individuals on medical treatment. However, persons living with obesity seeking weight loss treatment are more likely to have deficient vitamin D levels compared to the general population.
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Affiliation(s)
- Ala Mejaddam
- Department of Internal Medicine, Sahlgrenska University Hospital/Östra, Gothenburg, Sweden
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Gudrún Höskuldsdóttir
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Section for Endocrinology and Diabetology, Department of Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Frida Lenér
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Public Health and Community Medicine Primary Health Care, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Ville Wallenius
- Department of Surgery, Institution for Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Penelope Trimpou
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Section for Endocrinology and Diabetology, Department of Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Lars Fändriks
- Department of Surgery, Institution for Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Karin Mossberg
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Public Health and Community Medicine Primary Health Care, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Björn Eliasson
- Section for Endocrinology and Diabetology, Department of Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Kerstin Landin-Wilhelmsen
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Section for Endocrinology and Diabetology, Department of Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden
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Haghighat N, Sohrabi Z, Bagheri R, Akbarzadeh M, Esmaeilnezhad Z, Ashtary-Larky D, Barati-Boldaji R, Zare M, Amini M, Hosseini SV, Wong A, Foroutan H. A Systematic Review and Meta-Analysis of Vitamin D Status of Patients with Severe Obesity in Various Regions Worldwide. Obes Facts 2023; 16:519-539. [PMID: 37640022 PMCID: PMC10697766 DOI: 10.1159/000533828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 08/14/2023] [Indexed: 08/31/2023] Open
Abstract
INTRODUCTION Managing nutritional deficiencies is an essential component in the treatment of severe obesity. Vitamin D deficiency is often reported in investigations in severely obese cohorts. However, no prior study has summarized findings on this topic. Consequently, the aim of this systematic review and meta-analysis was to investigate the 25-hydroxyvitamin D [25(OH)D] status in individuals with severe obesity in different regions worldwide. We also evaluated levels of calcium, parathyroid hormone (PTH), and magnesium as secondary outcome measures. METHODS We searched Medline, PubMed, Scopus, the Cochrane Library, and EMBASE for relevant observational studies published in English from 2009 to October 2021. The heterogeneity index among the studies was determined using the Cochran (Q) and I2 tests. Based on the heterogeneity results, the random-effect model was applied to estimate the prevalence of vitamin D deficiency. RESULTS We identified 109 eligible observational studies. Overall, 59.44% of patients had vitamin D deficiency [25(OH)D <20 ng/mL], whereas 26.95% had vitamin D insufficiency [25(OH)D 20-30 ng/mL]. Moreover, the mean 25(OH)D level was 18.65 ng/mL in 96 studies. The pooled mean estimate of the serum calcium, PTH, and magnesium was 9.26 mg/dL (95% confidence interval [CI]: 9.19-9.32, I2 = 99.7%, p < 0.001), 59.24 pg/mL (95% CI: 54.98, 63.51, I2 = 99.7%, p < 0.001), and 0.91 mg/dL (95% CI: 0.84, 0.98, I2 = 100.0%, p < 0.001), respectively. The results of the subgroup analysis indicated that the mean estimates of 25(OH)D were highest in North America (21.71 ng/mL [19.69, 23.74], [I2 = 97.2%, p < 0.001]) and lowest in Southeast Asia (14.93 ng/mL [14.54, 15.33], [I2 = 0.0%, p = 0.778]). CONCLUSION The results obtained showed a significant prevalence of vitamin D deficiency among severely obese individuals in various geographical regions, whereas the highest and lowest mean estimates were reported for North America and Southeast Asia, respectively.
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Affiliation(s)
- Neda Haghighat
- Laparoscopy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Sohrabi
- Department of Community Nutrition, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Bagheri
- Department of Exercise Physiology, University of Isfahan, Isfahan, Iran
| | - Marzieh Akbarzadeh
- Department of Community Nutrition, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Esmaeilnezhad
- Department of Community Nutrition, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Damoon Ashtary-Larky
- Laparoscopy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Barati-Boldaji
- Department of Community Nutrition, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Morteza Zare
- Department of Community Nutrition, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Masoud Amini
- Laparoscopy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Alexei Wong
- Department of Health and Human Performance, Marymount University, Arlington, VA, USA
| | - Hamidreza Foroutan
- Laparoscopy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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Nascimento IMCD, Padilha BM, Araujo MLD, Silva PCD, Noronha GAD, Cabral PC, Ferraz ÁAB. VITAMIN D LEVELS AND LIPID PROFILE IN PATIENTS UNDERGOING BARIATRIC SURGERY. ARQUIVOS BRASILEIROS DE CIRURGIA DIGESTIVA : ABCD = BRAZILIAN ARCHIVES OF DIGESTIVE SURGERY 2023; 36:e1753. [PMID: 37531473 PMCID: PMC10379289 DOI: 10.1590/0102-672020230035e1753] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 06/01/2023] [Indexed: 08/04/2023]
Abstract
BACKGROUND Vitamin, mineral, and metabolic deficiencies occur in the postoperative period of bariatric surgery, in the short and long term, and are worrisome intercurrences. AIMS To evaluate the association of serum vitamin D levels with the lipid profile in obese patients undergoing bariatric surgery. METHODS Case series of patients assisted from 2010 to 2018, in a private hospital of medium and high complexity, who underwent bariatric surgery using sleeve gastrectomy or Roux-en-Y gastric bypass techniques, monitored by the same surgeon. Sociodemographic, clinical, laboratory, and anthropometric data were collected preoperatively and at 6, 12, and 24 months after surgery. RESULTS A total of 156 individuals, mostly female (75.6%) were monitored. The most frequent comorbidities were hepatic steatosis (76.3%) and hypertension (48.27). Regarding preoperative vitamin D levels, only 18.9% of the population had a satisfactory level (≥30 ng/mL). There was a reduction in weight and an improvement in the lipid profile after surgery. Significant correlations were observed between the lipid profile and vitamin D concentration only in the sample submitted to the Roux-en-Y gastric bypass technique: negative correlation between total cholesterol and vitamin D two years after surgery; positive correlation between triglycerides and vitamin D one year after surgery; and negative correlation between high-density lipoprotein and vitamin D two years post-surgery. CONCLUSIONS It is essential to routinely monitor vitamin D levels and lipid profile pre- and postoperatively in order to avoid damage associated with this vitamin deficiency.
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Joukar F, Asgharnezhad M, Naghipour M, Mojtahedi K, Salari A, Mansour-Ghanaei A, Mansour-Ghanaei F. Gender-related differences in the association of serum levels of vitamin D with body mass index in northern Iranian population: the PERSIAN Guilan Cohort Study (PGCS). BMC Nutr 2022; 8:146. [PMID: 36482384 PMCID: PMC9733319 DOI: 10.1186/s40795-022-00637-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 11/11/2022] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Vitamin D (VD) insufficiency has now become a global problem throughout the world. The association between increasing body mass index (BMI) and VD insufficiency has attracted great attention in recent researches. The aim was to study if BMI was independently associated with serum 25-hydroxy VD in a large population-based study, specify by gender. METHODS Data on 9520 adults 35 years and older participating in PERSIAN Guilan Cohort Study (PGCS) were used. Serum levels of 25-hydroxy VD less than 20 ng/mL (50 nmol/L) was used as a measure of VD inadequacy. Multiple logistic and linear regression analyses were used to estimate the strength of the association between VD and BMI before and after adjusting for demographic factors and lifestyle variables. RESULTS After adjustment in male population, overweight (adjusted OR = 1.2, P < 0.05) and obese (adjusted OR = 1.4, P > 0.05) individuals were more likely to have VD inadequacy than normal weight counterparts. Moreover, there was a weak inverse linear association between BMI and serum 25 (OH) D levels in males (β = -0.14, P value > 0.05). In contrast, no significant associations between BMI and serum 25 (OH (D levels were observed in females. In male population, higher BMI were associated with lower serum vitamin 25 (OH) D levels. CONCLUSIONS However, association between BMI and VD level was not observed in female population. The suggestion of current study for public health was special consideration to serum VD levels in over weight and obese males.
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Affiliation(s)
- Farahnaz Joukar
- grid.411874.f0000 0004 0571 1549Gastrointestinal and Liver Diseases Research Center, Guilan University of Medical Sciences, Razi Hospital, Sardar-Jangle Ave, Rasht, 41448-95655 Iran
| | - Mehrnaz Asgharnezhad
- grid.411874.f0000 0004 0571 1549Gastrointestinal and Liver Diseases Research Center, Guilan University of Medical Sciences, Razi Hospital, Sardar-Jangle Ave, Rasht, 41448-95655 Iran
| | - Mohammadreza Naghipour
- grid.411874.f0000 0004 0571 1549Gastrointestinal and Liver Diseases Research Center, Guilan University of Medical Sciences, Razi Hospital, Sardar-Jangle Ave, Rasht, 41448-95655 Iran
| | - Kourosh Mojtahedi
- grid.411874.f0000 0004 0571 1549Gastrointestinal and Liver Diseases Research Center, Guilan University of Medical Sciences, Razi Hospital, Sardar-Jangle Ave, Rasht, 41448-95655 Iran ,grid.411874.f0000 0004 0571 1549Caspian Digestive Diseases Research Center and GI Cancer Screening and Prevention Research Center, Guilan University of Medical Sciences, Rasht, Iran
| | - Arsalan Salari
- grid.411874.f0000 0004 0571 1549Cardiovascular Diseases Research Center, Department of Cardiology, Heshmat Hospital, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
| | - Alireza Mansour-Ghanaei
- grid.411874.f0000 0004 0571 1549Caspian Digestive Diseases Research Center, Guilan University of Medical Sciences, Rasht, Iran
| | - Fariborz Mansour-Ghanaei
- grid.411874.f0000 0004 0571 1549Gastrointestinal and Liver Diseases Research Center, Guilan University of Medical Sciences, Razi Hospital, Sardar-Jangle Ave, Rasht, 41448-95655 Iran
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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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Chen YC, Li WC, Ke PH, Chen IC, Yu W, Huang HY, Xiong XJ, Chen JY. Association between metabolic body composition status and vitamin D deficiency: A cross-sectional study. Front Nutr 2022; 9:940183. [PMID: 35967768 PMCID: PMC9365955 DOI: 10.3389/fnut.2022.940183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 07/08/2022] [Indexed: 11/13/2022] Open
Abstract
This study aimed to investigate the risk of vitamin D deficiency in a relatively healthy Asian population, with (i) metabolically healthy normal weight (MHNW) (homeostasis model assessment-insulin resistance [HOMA-IR] < 2. 5 without metabolic syndrome [MS], body mass index [BMI] < 25), (ii) metabolically healthy obesity (MHO) (HOMA-IR < 2.5, without MS, BMI ≥ 25), (iii) metabolically unhealthy normal weight (MUNW) (HOMA-IR ≥ 2.5, or with MS, BMI < 25), and (iv) metabolically unhealthy obesity (MUO) (HOMA-IR ≥ 2.5, or with MS, BMI ≥ 25) stratified by age and sex. This cross-sectional study involved 6,655 participants aged ≥ 18 years who underwent health checkups between 2013 and 2016 at the Chang Gung Memorial Hospital. Cardiometabolic and inflammatory markers including anthropometric variables, glycemic indices, lipid profiles, high-sensitivity C-reactive protein (hs-CRP), and serum 25-hydroxy vitamin D levels, were retrospectively investigated. Compared to the MHNW group, the MHO group showed a higher odds ratio (OR) [1.35, 95% confidence interval (CI) 1.05-1.73] for vitamin D deficiency in men aged < 50 years. By contrast, in men aged > 50 years, the risk of vitamin D deficiency was higher in the MUO group (OR 1.44, 95% CI 1.05-1.97). Among women aged < and ≥ 50 years, the MUO group demonstrated the highest risk for vitamin D deficiency, OR 2.33 vs. 1.54, respectively. Our study revealed that in women of all ages and men aged > 50 years, MUO is associated with vitamin D deficiency and elevated levels of metabolic biomarkers. Among men aged < 50 years, MHO had the highest OR for vitamin D deficiency.
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Affiliation(s)
- Yi-Chuan Chen
- Department of Family Medicine, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, Taiwan
| | - Wen-Cheng Li
- Department of Family Medicine, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, Taiwan.,College of Medicine, Chang-Gung University, Taoyuan, Taiwan.,Department of Health Management, Xiamen Chang Gung Hospital Hua Qiao University, Xiamen, China
| | - Pin-Hsuan Ke
- Department of Family Medicine, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, Taiwan
| | - I-Chun Chen
- Department of Family Medicine, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, Taiwan
| | - Wei Yu
- Department of Health Management, Xiamen Chang Gung Hospital Hua Qiao University, Xiamen, China
| | - Hsiung-Ying Huang
- Department of Pulmonary and Critical Care Medicine, Xiamen Chang Gung Hospital Hua Qiao University, Xiamen, China
| | - Xue-Jie Xiong
- Department of Oncology, Xiamen Chang Gung Hospital Hua Qiao University, Xiamen, China
| | - Jau-Yuan Chen
- Department of Family Medicine, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, Taiwan.,College of Medicine, Chang-Gung University, Taoyuan, Taiwan
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Associations between Body Composition and Vitamin D Status in Children with Overweight and Obesity Participating in a 1-Year Lifestyle Intervention. Nutrients 2022; 14:nu14153153. [PMID: 35956333 PMCID: PMC9370728 DOI: 10.3390/nu14153153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/27/2022] [Accepted: 07/27/2022] [Indexed: 02/01/2023] Open
Abstract
Background: To examine associations between body composition and vitamin D status in children participating in a lifestyle intervention. Methods: Children (6−12 y, n = 101) with a body mass index (BMI)-for-age >85th percentile were randomized to six dietitian-led behavior counselling sessions or no intervention. Plasma 25-hydroxyvitamin D (25(OH)D), anthropometry, and body composition using dual-energy X-ray absorptiometry were assessed every 3 months for 1 year. For each anthropometry variable (z-scores), tertiles were created to test for differences in 25(OH)D over time (tertile-by-time), and for changes in the z-score (loss, maintain, gain)-by-time, and according to fat patterning (android vs. gynoid) using mixed effects models. Results: The baseline plasma 25(OH)D was 62.2 nmol/L (95%CI: 58.7−65.7), and none < 30 nmol/L. At 6 mo, children with gynoid fat patterning had higher 25(OH)D concentrations than in those with android fat patterning (64.5 ± 1.1 nmol/L vs. 50.4 ± 1.0 nmol/L, p < 0.003, Cohen’s f = 0.20). Children with the lowest lean mass index z-score at 9 mo had higher plasma 25(OH)D concentrations than children with the highest z-score at baseline, 3 mo, and 6 mo (p < 0.05, Cohen’s f = 0.20). No other significant differences were observed. Conclusion: In this longitudinal study, vitamin D deficiency was not present in children 6−12 y of age with obesity. Reductions in adiposity did not alter the vitamin D status.
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Vitamin D Levels as an Important Predictor for Type 2 Diabetes Mellitus and Weight Regain Post-Sleeve Gastrectomy. Nutrients 2022; 14:nu14102052. [PMID: 35631192 PMCID: PMC9143791 DOI: 10.3390/nu14102052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 05/06/2022] [Accepted: 05/09/2022] [Indexed: 01/06/2023] Open
Abstract
Weight Loss Surgery (WLS), including sleeve-gastrectomy (SG), results in significant weight loss and improved metabolic health in severe obesity (BMI ≥ 35 kg/m2). Previous studies suggest post-operative health benefits are impacted by nutrient deficiencies, such as Vitamin D (25(OH)D) deficiency, while it is currently unknown whether nutrient levels may actually predict post-surgery outcomes. As such, this study investigated whether 25(OH)D levels could predict metabolic improvements in patients who underwent SG. Patients with severe obesity (n = 309; 75% female) undergoing SG participated in this ethics-approved, non-randomized retrospective cohort study. Anthropometry, clinical data, 25(OH)D levels and serum markers were collected at baseline, 6-, 12- and 18-months post-surgery. SG surgery resulted in significant improvements in metabolic health at 6- and 12-months post-surgery compared with baseline, as expected. Patients with higher baseline 25(OH)D had significantly lower HbA1c levels post-surgery (p < 0.01) and better post-surgical T2DM outcomes, including reduced weight regain (p < 0.05). Further analysis revealed that baseline 25(OH)D could predict HbA1c levels, weight regain and T2DM remission one-year post-surgery, accounting for 7.5% of HbA1c divergence (p < 0.01). These data highlight that higher circulating 25(OH)D levels are associated with significant metabolic health improvements post-surgery, notably, that such baseline levels are able to predict those who attain T2DM remission. This highlights the importance of 25(OH)D as a predictive biomarker of post-surgery benefits.
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Henning T, Kochlik B, Kusch P, Strauss M, Jurić V, Pignitter M, Marusch F, Grune T, Weber D. Pre-Operative Assessment of Micronutrients, Amino Acids, Phospholipids and Oxidative Stress in Bariatric Surgery Candidates. Antioxidants (Basel) 2022; 11:antiox11040774. [PMID: 35453460 PMCID: PMC9031169 DOI: 10.3390/antiox11040774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/09/2022] [Accepted: 04/11/2022] [Indexed: 11/16/2022] Open
Abstract
Obesity has been linked to lower concentrations of fat-soluble micronutrients and higher concentrations of oxidative stress markers as well as an altered metabolism of branched chain amino acids and phospholipids. In the context of morbid obesity, the aim of this study was to investigate whether and to which extent plasma status of micronutrients, amino acids, phospholipids and oxidative stress differs between morbidly obese (n = 23) and non-obese patients (n = 13). In addition to plasma, malondialdehyde, retinol, cholesterol and triglycerides were assessed in visceral and subcutaneous adipose tissue in both groups. Plasma γ-tocopherol was significantly lower (p < 0.011) in the obese group while other fat-soluble micronutrients showed no statistically significant differences between both groups. Branched-chain amino acids (all p < 0.008) and lysine (p < 0.006) were significantly higher in morbidly obese patients compared to the control group. Malondialdehyde concentrations in both visceral (p < 0.016) and subcutaneous (p < 0.002) adipose tissue were significantly higher in the morbidly obese group while plasma markers of oxidative stress showed no significant differences between both groups. Significantly lower plasma concentrations of phosphatidylcholine, phosphatidylethanolamine, lyso-phosphatidylethanolamine (all p < 0.05) and their corresponding ether-linked analogs were observed, which were all reduced in obese participants compared to the control group. Pre-operative assessment of micronutrients in patients undergoing bariatric surgery is recommended for early identification of patients who might be at higher risk to develop a severe micronutrient deficiency post-surgery. Assessment of plasma BCAAs and phospholipids in obese patients might help to differentiate between metabolic healthy patients and those with metabolic disorders.
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Affiliation(s)
- Thorsten Henning
- Department of Molecular Toxicology, German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE), 14558 Nuthetal, Germany; (T.H.); (P.K.); (T.G.)
- Food4Future (F4F), c/o Leibniz Institute of Vegetable and Ornamental Crops (IGZ), 14979 Grossbeeren, Germany
- NutriAct-Competence Cluster Nutrition Research Berlin-Potsdam, 14558 Nuthetal, Germany;
| | - Bastian Kochlik
- NutriAct-Competence Cluster Nutrition Research Berlin-Potsdam, 14558 Nuthetal, Germany;
- Department of Nutrition and Gerontology, German Institute of Human Nutrition Potsdam-Rehbruecke, (DIfE), 14558 Nuthetal, Germany
| | - Paula Kusch
- Department of Molecular Toxicology, German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE), 14558 Nuthetal, Germany; (T.H.); (P.K.); (T.G.)
- Institute of Nutritional Science, University of Potsdam, 14469 Potsdam, Germany
| | - Matthias Strauss
- Department of Physiological Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria; (M.S.); (V.J.); (M.P.)
- Vienna Doctoral School in Chemistry (DoSChem), University of Vienna, 1090 Vienna, Austria
| | - Viktorija Jurić
- Department of Physiological Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria; (M.S.); (V.J.); (M.P.)
| | - Marc Pignitter
- Department of Physiological Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria; (M.S.); (V.J.); (M.P.)
| | - Frank Marusch
- Department of General and Visceral Surgery, Klinikum Ernst von Bergmann, 14467 Potsdam, Germany;
| | - Tilman Grune
- Department of Molecular Toxicology, German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE), 14558 Nuthetal, Germany; (T.H.); (P.K.); (T.G.)
- NutriAct-Competence Cluster Nutrition Research Berlin-Potsdam, 14558 Nuthetal, Germany;
- Institute of Nutritional Science, University of Potsdam, 14469 Potsdam, Germany
- Department of Physiological Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria; (M.S.); (V.J.); (M.P.)
- Deutsches Zentrum für Diabetesforschung (DZD), 85764 Neuherberg, Germany
| | - Daniela Weber
- Department of Molecular Toxicology, German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE), 14558 Nuthetal, Germany; (T.H.); (P.K.); (T.G.)
- Food4Future (F4F), c/o Leibniz Institute of Vegetable and Ornamental Crops (IGZ), 14979 Grossbeeren, Germany
- NutriAct-Competence Cluster Nutrition Research Berlin-Potsdam, 14558 Nuthetal, Germany;
- Correspondence:
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Hays H, Flores LE, Kothari V, Bilek L, Geske J, Skinner A. Vitamin D Status and Seasonal Variation: A Retrospective Single Institution Database Study of Patients Pursuing Metabolic/Bariatric Surgery. CLINICAL NUTRITION OPEN SCIENCE 2022. [DOI: 10.1016/j.nutos.2021.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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12
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Salman MA, Salman A, Elewa A, Rabiee A, Tourky M, Shaaban HED, Issa M, AbdAlla A, Khattab M, Refaat A, Fathy E, Mohamed US, Noureldin K, Moustafa A, Elias AAK, Elmarzouky MS, Shazly MN, Omar HSE. Secondary Hyperparathyroidism Before and After Bariatric Surgery: a Prospective Study with 2-Year Follow-Up. Obes Surg 2022; 32:1141-1148. [PMID: 35050483 DOI: 10.1007/s11695-022-05902-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 01/07/2022] [Accepted: 01/14/2022] [Indexed: 10/19/2022]
Abstract
PURPOSE Secondary hyperparathyroidism (SHPT) is linked to obesity. Bariatric surgery may be associated with calcium and vitamin D deficiencies leading to SHPT. This study aimed to detect the prevalence of SHPT before and after bariatric surgery. METHODS This prospective study assessed the prevalence of SHPT after sleeve gastrectomy (SG, n = 38) compared to one-anastomosis gastric bypass (OAGB, n = 86). All patients were followed up for 2 years. Bone mineral density (BMD) was assessed using dual-energy X-ray absorptiometry. RESULTS Of the 124 patients, 71 (57.3%) were females, and 53 (42.7%) were males, with a mean age of 37.5 ± 8.8 years. Before surgery, 23 patients (18.5%) suffered from SHPT, and 40 (32.3%) had vitamin D deficiency. The prevalence of SHPT increased to 29.8% after 1 year and 36.3% after 2 years. SHPT was associated with lower levels of vitamin D and calcium and higher reduction of BMD in the hip but not in the spine. After 2 years, SHPT was associated with a significantly lower T-score in the hip. SHPT and vitamin D deficiency were significantly more common in patients subjected to OAGB compared to SG (p = 0.003, and p < 0.001, respectively). There is a strong negative correlation between vitamin D levels and parathormone levels before and after surgery. CONCLUSION Prevalence of SHPT is high in obese patients seeking bariatric surgery, especially with lower vitamin D levels. Bariatric surgery increases the prevalence of SHPT up to 2 years. Gastric bypass is associated with a higher risk of developing SHPT compared to SG.
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Affiliation(s)
- Mohamed AbdAlla Salman
- General Surgery Department, Kasralainy School of Medicine, Cairo University, Cairo, Egypt.
| | - Ahmed Salman
- Internal Medicine Department, Kasralainy School of Medicine, Cairo University, Cairo, Egypt
| | - Ahmed Elewa
- General Surgery Department, National Hepatology and Tropical Medicine Research Institute, Cairo, Egypt
| | - Ahmed Rabiee
- Internal Medicine Department, Kasralainy School of Medicine, Cairo University, Cairo, Egypt
| | - Mohamed Tourky
- General Surgery Department, Great Western Hospital, NHS Foundation Trust, Swindon, UK
| | - Hossam El-Din Shaaban
- Gastroenterology and Hepatology Department, National Hepatology and Tropical Medicine Research Institute, Cairo, Egypt
| | - Mohamed Issa
- Prince Charles Hospital, Myrthyer Tydfil, Cardiff, UK
| | - Ahmed AbdAlla
- General Surgery Department, Kasralainy School of Medicine, Cairo University, Cairo, Egypt
| | - Mohammed Khattab
- General Surgery Department, Kasralainy School of Medicine, Cairo University, Cairo, Egypt
| | - Ahmed Refaat
- General Surgery Department, Kasralainy School of Medicine, Cairo University, Cairo, Egypt
| | - Ehab Fathy
- General Surgery Department, Kasralainy School of Medicine, Cairo University, Cairo, Egypt
| | - Usama Shaker Mohamed
- General Surgery Department, Kasralainy School of Medicine, Cairo University, Cairo, Egypt
| | - Khaled Noureldin
- General Surgery Department, Kasralainy School of Medicine, Cairo University, Cairo, Egypt
| | - Ahmed Moustafa
- Endemic Medicine and Hepatology Department, Kasralainy School of Medicine, Cairo University, Cairo, Egypt
| | - Abd Al-Kareem Elias
- Department of General Surgery, Faculty of Medicine, Al-Azhar University, Assuit Branch, Assuit, Egypt
| | | | - Mohamed Nasr Shazly
- General Surgery Department, Kasralainy School of Medicine, Cairo University, Cairo, Egypt
| | - Haitham S E Omar
- General Surgery Department, Kasralainy School of Medicine, Cairo University, Cairo, Egypt
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Karacan Küçükali G, Gülbahar Ö, Özalkak Ş, Dağlı H, Ceylaner S, Aycan Z, Savaş Erdeve Ş. Is Bioavailable Vitamin D Better Than Total Vitamin D to Evaluate Vitamin D Status in Obese Children? J Clin Res Pediatr Endocrinol 2021; 13:391-399. [PMID: 34013709 PMCID: PMC8638623 DOI: 10.4274/jcrpe.galenos.2020.2021.0230] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
INTRODUCTION Free hormones are biologically more active in target tissues. Thus, measurement of vitamin D taking into account bioavailability and free vitamin D may be preferable, especially when evidence is contradictory, as in obese children. In order to assess bioavailablity and free vitamin D, using a previously reported formula, vitamin D-binding protein (VDBP) level was measured and VDBP polymorphisms were also evaluated because of variations in binding affinity. METHODS Eighty-four obese and 78 healthy children were included. Anthropometry, calcium, phosphorus, alkaline-phosphatase, parathyroid hormone (PTH), 25 hydroxyvitamin D [25(OH)D], bioavailable-free vitamin D, and VDBP concentration and polymorphism were evaluated in the whole group. RESULTS Obese girls had significantly higher PTH than normal weight girls (p=0.001). Regardless of gender, obese children had significantly higher concentrations of VDBP (p=0.008) and PTH (p=0.002). When samples taken in winter were analyzed, PTH and VDBP were found to be higher and bioavailable and free vitamin D lower in the obese group. There was no difference in terms of total vitamin D between groups during the winter season. CONCLUSION While total, free, and bioavailable vitamin D in the obese group was similar to the control group in autumn, free and bioavailable vitamin D in the winter was lower in the obese than the control group. In addition, PTH was higher in the obese group in both autumn and winter. Therefore, more research is needed to evaluate the variability of free and bioavailable vitamin D according to body habitus, season and the effect any differences may have.
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Affiliation(s)
- Gülin Karacan Küçükali
- University of Health Science Turkey, Dr. Sami Ulus Maternity, Child Health and Diseases Training and Research Hospital, Clinic of Pediatric Endocrinology, Ankara, Turkey,* Address for Correspondence: University of Health Science Turkey, Dr. Sami Ulus Maternity, Child Health and Diseases Training and Research Hospital, Clinic of Pediatric Endocrinology, Ankara, Turkey Phone: +90 533 764 84 26 E-mail:
| | - Özlem Gülbahar
- Gazi University Faculty of Medicine, Department of Clinical Biochemistry, Ankara, Turkey
| | - Şervan Özalkak
- University of Health Science Turkey, Dr. Sami Ulus Maternity, Child Health and Diseases Training and Research Hospital, Clinic of Pediatric Endocrinology, Ankara, Turkey
| | - Hasan Dağlı
- Gazi University Faculty of Medicine, Department of Clinical Biochemistry, Ankara, Turkey
| | | | - Zehra Aycan
- University of Health Science Turkey, Dr. Sami Ulus Maternity, Child Health and Diseases Training and Research Hospital, Clinic of Pediatric Endocrinology, Ankara, Turkey
| | - Şenay Savaş Erdeve
- University of Health Science Turkey, Dr. Sami Ulus Maternity, Child Health and Diseases Training and Research Hospital, Clinic of Pediatric Endocrinology, Ankara, Turkey
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Alharazy S, Alissa E, Lanham-New S, Naseer MI, Chaudhary AG, Robertson MD. Association between vitamin D and glycaemic parameters in a multi-ethnic cohort of postmenopausal women with type 2 diabetes in Saudi Arabia. BMC Endocr Disord 2021; 21:162. [PMID: 34380489 PMCID: PMC8359582 DOI: 10.1186/s12902-021-00825-3] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 07/18/2021] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND The relationship between vitamin D (VitD) and insulin sensitivity and secretion in type 2 diabetes mellitus (T2D) has been shown to be different amongst different ethnic populations. In Saudi Arabia, where both T2D and VitD deficiency are highly prevalent health concerns, little is known about the relationship between VitD, insulin sensitivity, resistance and the relative importance of ethnicity. Our primary aim in this study was to investigate influence of ethnicity on VitD association with glycaemic profile and to measures of obesity as a secondary outcome, among multiethnic postmenopausal women with T2D in Saudi Arabia. METHODS A cross-sectional study was conducted at King Fahad Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia. Postmenopausal females (n = 173, age ≥ 50 years) with T2D were randomly selected in this study. Anthropometric measures and fasting blood samples were obtained for all study participants. Several biochemical parameters were measured including 25-hydroxyvitamin D (25(OH)D), glycosylated hemoglobin (HbA1c), insulin, glucose and c-peptide. Surrogate markers for insulin resistance were calculated using Homeostasis Model Assessment 2 for insulin resistance and beta cell activity (HOMA2-IR, HOMA2-β). RESULTS Overall, 25(OH)D was inversely associated with fasting glucose (r=-0.165, P = 0.037), insulin (r=-0.184, P = 0.02), C-peptide (r=-0.19, P = 0.015) and HOMA2- IR C-peptide (r=-0.23, P = 0.004). Additionally, serum 25 (OH)D showed a negative correlation with body weight (r=-0.173 P = 0.028), waist and hip circumferences (r=-0.167, P = 0.033; r=-0.22, P = 0.004 respectively) but not with body mass index (BMI) or waist hip ratio (WHR). In the white ethnic group but not in black or Asian population groups, 25(OH)D level was also associated with only serum fasting C-peptide and HOMA2-IR C-peptide and BMI (P < 0.05). CONCLUSIONS Insulin resistance and obesity were associated with VitD status in T2D in this cohort. Our findings also suggest that these VitD associations in women from white ethnic background are different than in those from black/Asian ethnic backgrounds. Whether VitD supplements are able to improve either obesity and/or insulin sensitivity should be further investigated in different ethnic population groups.
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Affiliation(s)
- Shatha Alharazy
- Department of Physiology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Eman Alissa
- Department of Clinical Biochemistry, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Susan Lanham-New
- Department of Nutritional Sciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK
| | - Muhammad Imran Naseer
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, 21589 Jeddah, Saudi Arabia
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, 21589 Jeddah, Saudi Arabia
| | - Adeel G. Chaudhary
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, 21589 Jeddah, Saudi Arabia
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, 21589 Jeddah, Saudi Arabia
- Centre for Innovation in Personalized Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - M Denise Robertson
- Department of Nutritional Sciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK
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Maternal vitamin D deficiency increases the risk of obesity in male offspring mice by affecting the immune response. Nutrition 2021; 87-88:111191. [PMID: 33744641 DOI: 10.1016/j.nut.2021.111191] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 01/08/2021] [Accepted: 02/03/2021] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Recently, many epidemiologic and animal studies have indicated that obesity has its origin in early stages of life, including the inappropriate balance of some nutrients. So the objectives of this study were to determine the risk of obesity in male offspring mice as a consequence of maternal vitamin D (VD) deficiency mediating the disordered immune response. METHODS C57BL/6J female mice 4 wk old were fed VD-deficient or normal reproductive diets during pregnancy and lactation. Their male offspring were given control and high-fat diets for 16 wk after weaning and then weighed and euthanized. The serum was collected for biochemical analyses. Epididymal (eWAT) and inguinal white adipose tissue (iWAT) were excised for histologic examination, immunohistochemistry, gene expression of inflammatory factors, and determination by flow cytometry of the proportions of immune cells. RESULTS Insufficient maternal VD intake exacerbated the development of obesity in male offspring mice that were both obese and non-obese, as evidenced by larger adipose cells and abnormal glucose and lipid metabolisms. Also, the expressions of proinflammatory cytokines were increased and that of anti-inflammatory cytokines was decreased in eWAT and/or iWAT in the maternal VD-deficient group, accompanied by higher levels of tumor necrosis factor-α and/or interferon-γ and lower levels of interleukin-4 and interleukin-10. Insufficient maternal VD intake was also observed to induce a shift in the profiles of immune cells in the eWAT and/or iWAT of male offspring that were both obese and non-obese, resulting in increased percentages of M1 macrophages, adipose tissue dendritic cells, and CD4+ and CD8+ T cells but a significant decrease in the percentages of M2 macrophages. All these changes in the immune cell profile were more obvious in the eWAT than those in the iWAT. CONCLUSIONS Maternal VD deficiency might promote the development of obesity in male offspring mice partly by modulating the immune cell populations and causing a polarization in the adipose depots.
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Karava V, Christoforidis A, Kondou A, Dotis J, Printza N. Update on the Crosstalk Between Adipose Tissue and Mineral Balance in General Population and Chronic Kidney Disease. Front Pediatr 2021; 9:696942. [PMID: 34422722 PMCID: PMC8378583 DOI: 10.3389/fped.2021.696942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Accepted: 07/06/2021] [Indexed: 11/17/2022] Open
Abstract
Adipose tissue is nowadays considered as a major endocrine organ, which apart from controlling lipid metabolism, displays a significant role in energy expenditure, food intake and in the regulation of various systemic physiological processes. Adipose derived pro-inflammatory cytokines and adipokines, particularly leptin and adiponectin, provide inter-communication of adipose tissue with various metabolic pathways, ultimately resulting in a complex network of interconnected organ systems. Recent clinical and experimental research has been focused on exploring the direct interaction between adipokine profile and elements of mineral metabolism, including parathormone (PTH), fibroblast growth factor-23 (FGF23) and calcitriol. The emerging crosstalk between adipose tissue and calcium and phosphorus homeostasis suggests that metabolic disorders from one system may directly affect the other and vice versa. It is current knowledge that fat metabolism disturbance, commonly encountered in obese individuals, influences the expression of calciotriopic hormones in general population, while various clinical trials attempting to successfully achieve body fat loss by modulating mineral profile have been published. In chronic kidney disease (CKD) state, there is an increasing evidence suggesting that mineral disorders, influence adipose tissue and linked endocrine function. On the contrary, the impact of disturbed fat metabolism on CKD related mineral disorders has been also evocated in clinical studies. Recognizing the pathogenetic mechanisms of communication between adipose tissue and mineral balance is critical for understanding the effects of metabolic perturbations from the one system to the other and for identifying possible therapeutic targets in case of disrupted homeostasis in one of the two connected systems. To that end, this review aims to enlighten the recent advances regarding the interplay between mineral metabolism, fat mass and adipokine profile, based on in vitro, in vivo and clinical studies, in general population and in the course of CKD.
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Affiliation(s)
- Vasiliki Karava
- Pediatric Nephrology Unit, 1st Department of Pediatrics, Hippokratio General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Athanasios Christoforidis
- Pediatric Endocrinology Unit, 1st Department of Pediatrics, Hippokratio General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Antonia Kondou
- Pediatric Nephrology Unit, 1st Department of Pediatrics, Hippokratio General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - John Dotis
- Pediatric Nephrology Unit, 1st Department of Pediatrics, Hippokratio General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Nikoleta Printza
- Pediatric Nephrology Unit, 1st Department of Pediatrics, Hippokratio General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Authors' reply: the biologic importance of the vitamin D binding protein polymorphism in pediatric COVID-19 patients. Eur J Pediatr 2021; 180:2709-2710. [PMID: 33990871 PMCID: PMC8121489 DOI: 10.1007/s00431-021-04109-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 04/30/2021] [Accepted: 05/06/2021] [Indexed: 01/11/2023]
Abstract
What is Known? • Vitamin D has multiple roles in the immune system that can modulate the body reaction to an infection • Vitamin D binding protein (DBP) is the key transport protein which, along with albumin, binds over 99% of the circulating vitamin D metabolites What is New? • Lower 25 OH vitamin D levels were associated with higher inflammation markers, suggesting an important role of vitamin D in the clinical course of COVID-19 in children and adolescents probably by regulating the systemic inflammatory response • Further studies are warranted to investigate the possible causal association of DBP levels and polymorphism with vitamin D status (total and bioavailable vitamin D) in COVID-19 patients.
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Vahdat S. Vitamin D and Kidney Diseases: A Narrative Review. Int J Prev Med 2020; 11:195. [PMID: 33815719 PMCID: PMC8000170 DOI: 10.4103/ijpvm.ijpvm_54_19] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 11/06/2019] [Indexed: 12/12/2022] Open
Abstract
Vitamin D (Vit. D) is among the most important elements of the human body that play pivotal roles in health and disease. It belongs to the fat-soluble secosteroid family, which is provided by either foods or direct exposure to sunlight that converts 7-hydroxycholesterol to the Vit. D precursor. An alternative step is bio-activation, which delivers an active form of Vit. D (Vit. D3), which participates in various noticeable functions including calcium regulation, bone remodeling, fertility, glucose control, and detoxification. The most recent literature is carefully reviewed (2049 articles) and the relative information was collected and discussed meticulously. Inclusion criteria were the articles that mentioned the relationship between Vit. D, adipokine, and kidney disease and exclusion criteria were nonrelevant articles. Vit. D plays several roles in the normal function of the kidney and metabolism. It has been revealed that Vit. D has a crucial impact on kidney disease and that its deficiency leads to kidney dysfunction and further renal disorder. Apart from the direct relationship of Vit. D with kidney disease, the association of adipocytes and adipokines with Vit. D and kidney function has also been studied. The noticeable role of Vit. D in kidney disease is investigated in various studies. It has been found that Vit. D has a pivotal role in kidney function and metabolism. Further study can reveal the better-detailed information about the exact relation of Vit. D and kidney disorders. The aim of the review was to provide a better insight into the exact role of Vit. D and adipokine in the kidney disease.
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Affiliation(s)
- Sahar Vahdat
- Department of Nephrology, Khorshid Hospital, Isfahan Kidney Diseases Research Center, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
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Kruschitz R, Wakolbinger M, Schindler K, Prager G, Hoppichler F, Marculescu R, Ludvik B. Effect of one-anastomosis gastric bypass on cardiovascular risk factors in patients with vitamin D deficiency and morbid obesity: A secondary analysis. Nutr Metab Cardiovasc Dis 2020; 30:2379-2388. [PMID: 32981799 DOI: 10.1016/j.numecd.2020.08.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 08/07/2020] [Accepted: 08/10/2020] [Indexed: 11/23/2022]
Abstract
BACKGROUND AND AIMS Bariatric patients often suffer from vitamin D (VD) deficiency, and both, morbid obesity and VD deficiency, are related to an adverse effect on cardiovascular disease (CVD) risk. Therefore, we assessed the change of known CVD risk factors and its associations during the first 12 months following one-anastomosis gastric bypass (OAGB). METHODS AND RESULTS In this secondary analysis, CVD risk factors, medical history and anthropometric data were assessed in fifty VD deficient (25-hydroxy-vitamin D (25(OH)D) <75 nmol/l) patients, recruited for a randomized controlled trial of VD supplementation. Based on previous results regarding bone-mass loss and the association between VD and CVD risk, the study population was divided into patients with 25(OH)D ≥50 nmol/l (adequate VD group; AVD) and into those <50 nmol/l (inadequate VD group; IVD) at 6 and 12 months (T6/12) postoperatively. In the whole cohort, substantial remission rates for hypertension (38%), diabetes (30%), and dyslipidaemia (41%) and a significant reduction in CVD risk factors were observed at T12. Changes of insulin resistance markers were associated with changes of total body fat mass (TBF%), 25(OH)D, and ferritin. Moreover, significant differences in insulin resistance markers between AVD and IVD became evident at T12. CONCLUSION These findings show that OAGB leads to a significant reduction in CVD risk factors and amelioration of insulin resistance markers, which might be connected to reduced TBF%, change in 25(OH)D and ferritin levels, as an indicator for subclinical inflammation, and an adequate VD status. REGISTERED AT CLINICALTRIALS.GOV: (Identifier: NCT02092376) and EudraCT (Identifier: 2013-003546-16).
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Affiliation(s)
- Renate Kruschitz
- Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, Austria; Division of Internal Medicine, General Public Hospital of the Order of Saint Elisabeth, Klagenfurt, Austria
| | - Maria Wakolbinger
- Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, Austria; Department of Social and Preventive Medicine, Centre for Public Health, Medical University of Vienna, Austria.
| | - Karin Schindler
- Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, Austria
| | - Gerhard Prager
- Division of General Surgery, Department of Surgery, Medical University of Vienna, Austria
| | - Friedrich Hoppichler
- Special Institute for Preventive Cardiology and Nutrition - SIPCAN, Salzburg, Austria; Division of Internal Medicine, General Public Hospital of the Brothers of Saint John of God Salzburg, Austria
| | - Rodrig Marculescu
- Clinical Institute for Medical and Chemical Laboratory Diagnostics, Department of Laboratory Medicine, Medical University of Vienna, Austria
| | - Bernhard Ludvik
- Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, Austria; Department of Medicine 1, Karl Landsteiner Institute for Obesity and Metabolic Disorders, Rudolfstiftung Hospital, Vienna, Austria
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Tian R, Zheng F, Zhao W, Zhang Y, Yuan J, Zhang B, Li L. Prevalence and influencing factors of nonunion in patients with tibial fracture: systematic review and meta-analysis. J Orthop Surg Res 2020; 15:377. [PMID: 32883313 PMCID: PMC7469357 DOI: 10.1186/s13018-020-01904-2] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Accepted: 08/20/2020] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVE The aim of this study is to assess the prevalence of nonunion in patients with tibia fracture and the association between influencing factors and tibia fracture nonunion. METHOD A database searches of PubMed, the Cochrane Library, EMBASE, China National Knowledge Infrastructure (CNKI), Weipu database, and Wanfang database from inception until June 2019 was conducted. The pooled prevalence, odds ratio (OR), and 95% confidence intervals (CI) were calculated with Stata software. RESULTS In this study, 111 studies involving 41,429 subjects were included. In the study of the relationship between influencing factors and tibia fracture nonunion, 15 factors significantly influenced the fracture union, including > 60 years old, male, tobacco smoker, body mass index > 40, diabetes, nonsteroidal anti-inflammatory drugs (NSAIDs) user, opioids user, fracture of middle and distal tibia, high-energy fracture, open fracture, Gustilo-Anderson grade IIIB or IIIC, Müller AO Classification of Fractures C, open reduction, fixation model, and infection. CONCLUSION The prevalence of nonunion in patients with tibia fracture was 0.068 and 15 potential factors were associated with the prevalence. Closed reduction and minimally invasive percutaneous plate osteosynthesis (MIPPO) have the low risks of nonunion for the treatment of tibial fractures.
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Affiliation(s)
- Ruifeng Tian
- Department of Orthopaedics, No.1 Hospital of China Medical University, Shenyang, China
| | - Fang Zheng
- Department of Orthopaedics, No.1 Hospital of China Medical University, Shenyang, China
- Department of Orthopaedics, Shenyang Orthopaedic Hospital, Shenyang, China
| | - Wei Zhao
- Department of Orthopaedics, No.1 Hospital of China Medical University, Shenyang, China
- Department of Orthopaedics, No.4 Hospital of China Medical University, Guangzhou, China
| | - Yuhui Zhang
- Department of Dermatology, No.1 Hospital of China Medical University, Guangzhou, China
| | - Jinping Yuan
- Department of Dermatology, No.1 Hospital of China Medical University, Guangzhou, China
| | - Bowen Zhang
- Department of Orthopaedics, No.1 Hospital of China Medical University, Shenyang, China
| | - Liangman Li
- Department of Orthopaedics, No.1 Hospital of China Medical University, Shenyang, China.
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Bone Mineral Density, Parathyroid Hormone, and Vitamin D After Gastric Bypass Surgery: a 10-Year Longitudinal Follow-Up. Obes Surg 2020; 30:4995-5000. [PMID: 32860128 PMCID: PMC7719110 DOI: 10.1007/s11695-020-04912-7] [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: 03/16/2020] [Revised: 08/04/2020] [Accepted: 08/10/2020] [Indexed: 12/03/2022]
Abstract
Background The aim of the present study was to study longitudinal changes in bone mineral density (BMD), vitamin D, and parathyroid hormone (PTH) levels in females over a 10-year period after laparoscopic Roux-en-Y gastric bypass (LRYGB). Methods Twenty-three women, mean age 43.4 ± 8.7 years and mean body mass index (BMI) 44.6 ± 5.17 kg/m2 at baseline, were included. BMD, BMI, S-calcium, S-25(OH)-vitamin D, and fP-PTH were measured preoperatively and 2, 5, and 10 years postoperatively. Results Ten years after surgery, BMD of the spine and femoral neck decreased by 20% and 25%, respectively. Changes in serum levels of vitamin D, PTH, and calcium over the same period were small. Conclusion After LRYGB with subsequent massive weight loss, a large decrease in BMD of the spine and femoral neck was seen over a 10-year postoperative period. The fall in BMD largely occurred over the first 5 years after surgery.
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Jalali SM, Azadbakht M, Azadbakht S, Daniali S, Farokhi E. Prevalence of secondary hyperparathyroidism following bariatric surgery. INTERNATIONAL JOURNAL OF SURGERY OPEN 2020. [DOI: 10.1016/j.ijso.2020.11.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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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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Chang E. 1,25-Dihydroxyvitamin D Decreases Tertiary Butyl-Hydrogen Peroxide-Induced Oxidative Stress and Increases AMPK/SIRT1 Activation in C2C12 Muscle Cells. Molecules 2019; 24:molecules24213903. [PMID: 31671915 PMCID: PMC6864759 DOI: 10.3390/molecules24213903] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 10/22/2019] [Accepted: 10/28/2019] [Indexed: 01/21/2023] Open
Abstract
Enhanced oxidative stress has been associated with muscle mitochondrial changes and metabolic disorders. Thus, it might be a good strategy to decrease oxidative stress and improve mitochondrial changes in skeletal muscle. In the present study, we investigate the role of the most biologically active metabolite of vitamin D, 1,25-dihyroxyvitamin D (1,25(OH)2D) in oxidative stress and mitochondrial changes in tertiary butyl-hydrogen (tBHP)-treated C2C12 muscle cells. Differentiated C2C12 muscle cells were pretreated with tBHP, followed by 1,25(OH)2D for additional 24 h. An exogenous inducer of oxidative stress, tBHP significantly increased oxidative stress, lipid peroxidation, intracellular damage, and cell death which were reversed by 1,25(OH)2D in C2C12 myotubes. 1.25(OH)2D improves tBHP-induced mitochondrial morphological changes such as swelling, irregular cristae, and smaller size and number, as observed by transmission electron microscope. In addition, 1,25(OH)2D treatment increases mtDNA contents as well as gene expression involved in mitochondrial biogenesis such as PGC1α, NRF1, and Tfam. Significant increments in mRNA levels related to antioxidant enzymes such as Nrf2, HMOX1, and TXNRD1, myogenic differentiation markers including myoglobin, muscle creatine kinase (MCK), and MHCІ and ІІ, and vitamin D metabolism such as CYP24, CYP27, and vitamin D receptor (VDR) were found in 1,25(OH)2D-treated myotubes. Moreover, upon t-BHP-induced oxidative stress, significant incremental changes in nicotinamide adenine dinucleotide (NAD) levels, activities of AMP-activated protein kinase (AMPK)/sirtulin 1 (SIRT1), and SIRT1 expression were noted in 1,25(OH)2D-treated C2C12 muscle cells. Taken together, these results suggest the observed potent inhibitory effect of 1,25(OH)2D on muscle oxidative stress and mitochondrial dynamics might be at least involved in the activation of AMPK and SIRT1 activation in muscle cells.
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Affiliation(s)
- Eugene Chang
- Department of Nutritional Science and Food Management, Ewha Womans University, Seoul 03760, Korea.
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Jeong JH, Hong JS, Han TH, Fang LH, Chung WL, Kim YY. Effects of dietary vitamin levels on physiological responses, blood profiles, and reproductive performance in gestating sows. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2019; 61:294-303. [PMID: 31602308 PMCID: PMC6778853 DOI: 10.5187/jast.2019.61.5.294] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 09/04/2019] [Accepted: 09/05/2019] [Indexed: 11/20/2022]
Abstract
This study was performed to evaluate the effects of dietary vitamin levels on physiological responses, blood profiles, and reproductive performance in gestating sows. A total of 52 F1 multiparous sows (Yorkshire × Landrace) with an average body weight of 223.5 ± 31.7 kg, an average parity of 6.4 ± 2.7, and an average backfat thickness of 18.5 ± 4.9 mm were divided into four treatment groups considering body weight, backfat thickness, and parity in a completely randomized design with 13 replicates. The treatments were 100% (V1), 300% (V3), 600% (V6) and 900% (V9) of the National Research Council (NRC) Nutrient Requirements of Swine. The gestation diet was formulated based on corn-soybean meal (SBM) and contained 3,265 kcal of metabolizable energy (ME)/kg and 12.00% crude protein. During the lactation period, all sows were fed the same commercial lactation diet. There was no significant difference in body weight of gestating sows. However backfat thickness tended to increase when higher levels of vitamins were provided to gestating sows (p < 0.10). When high levels of dietary vitamins were provided, the body weight change of lactating sows increased (p < 0.01). When sows were fed higher levels of vitamins, the feed intake of lactating sows tended to decrease (p = 0.06). There were no treatment differences in the number of total born, born alive, stillbirth piglets, or the body weight of piglets according to different dietary vitamin level. As dietary vitamin level increased, the serum concentration of 25(OH)D3 in sows at 90 days of gestation linearly increased (p < 0.01). Furthermore, the serum vitamin E level of gestating sows was linearly increased with increasing dietary vitamin level (p < 0.05). The current NRC vitamin requirements are sufficient for gestating sows and higher levels of vitamins in the gestation diet did not show any beneficial effects for gestating and lactating sows.
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Affiliation(s)
- Jae Hark Jeong
- Department of Agricultural Biotechnology, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
| | - Jin Su Hong
- Department of Agricultural Biotechnology, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
| | - Tae Hee Han
- Department of Agricultural Biotechnology, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
| | - Lin Hu Fang
- Department of Agricultural Biotechnology, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
| | - Woo Lim Chung
- Department of Agricultural Biotechnology, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
| | - Yoo Yong Kim
- Department of Agricultural Biotechnology, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
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Asghari G, Khalaj A, Ghadimi M, Mahdavi M, Farhadnejad H, Valizadeh M, Azizi F, Barzin M, Hosseinpanah F. Prevalence of Micronutrient Deficiencies Prior to Bariatric Surgery: Tehran Obesity Treatment Study (TOTS). Obes Surg 2019. [PMID: 29520704 DOI: 10.1007/s11695-018-3187-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Micronutrient deficiencies are major concerns after bariatric surgery, although these conditions often go undiagnosed pre-surgery. OBJECTIVE To assess pre-surgery micronutrient status of an Iranian population of morbidly obese candidates of bariatric surgery in a cross-sectional study. METHODS A cross-sectional analysis of 2008 candidates for bariatric surgery, aged 15-65 years, with either body mass index (BMI) ≥ 40 kg/m2 or 30 < BMI < 35 kg/m2 with a medical comorbidity was conducted. In order to determine the micronutrient status of participants, blood samples were collected to assess serum concentrations of vitamins (B12 and D), minerals (copper, calcium, phosphate, and zinc), and iron profiles (total iron binding capacity, iron concentration, ferritin, and iron saturation), according to standard protocol. RESULTS The mean age and BMI of patients (79.3% female) were 37.8 years and 44.8 kg/m2, respectively. Deficiencies were found for 25(OH) D (53.6%), vitamin B12 (34.4%), serum iron (10.2%), and low levels of hemoglobin (16.6%). The prevalence of other deficiencies were all below 10%. Body mass index had a negative correlation with iron, calcium, vitamin B12, and 25(OH) D and was positively correlated with copper. CONCLUSION Micronutrient deficiencies, including vitamin D, vitamin B12, and iron, are commonly found among morbidly obese subjects who are potential candidates of bariatric surgery.
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Affiliation(s)
- Golaleh Asghari
- Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Alireza Khalaj
- Tehran Obesity Treatment Center, Department of Surgery, Faculty of Medicine, Shahed University, Tehran, Iran
| | - Maryam Ghadimi
- Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Mahdavi
- Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hossein Farhadnejad
- Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Majid Valizadeh
- Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fereidoun Azizi
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Barzin
- Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Farhad Hosseinpanah
- Obesity Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Cimini FA, Barchetta I, Carotti S, Morini S, Cavallo MG. Overview of studies of the vitamin D/vitamin D receptor system in the development of non-alcoholic fatty liver disease. World J Gastrointest Pathophysiol 2019; 10:11-16. [PMID: 31559105 PMCID: PMC6751507 DOI: 10.4291/wjgp.v10.i2.11] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 08/09/2019] [Accepted: 08/21/2019] [Indexed: 02/06/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is the most common chronic liver disease in the world. NAFLD is known to be associated with obesity, type 2 diabetes, metabolic syndrome and increased cardiovascular events: for these reasons, it is becoming a global public health problem and represents an important challenge in terms of prevention and treatment. The mechanisms behind the pathogenesis of NAFLD are multiple and have not yet been completely unraveled; consequently, at moment there are not effective treatments. In the past few years a large body of evidence has been assembled that attributes an important role in hepatic aberrant fat accumulation, inflammation and fibrosis, to the vitamin D/vitamin D receptor (VD/VDR) axis, showing a strong association between hypovitaminosis D and the diagnosis of NAFLD. However, the data currently available, including clinical trials with VD supplementation, still provides a contrasting picture. The purpose of this editorial is to provide an overview of recent advances in the pathogenesis of NAFLD in relation to VD/VDR. Based on recent data from literature, we focused in particular on the hypothesis that VDR itself, independently from its traditional ligand VD, may have a crucial function in promoting hepatic fat accumulation. This might also offer new possibilities for future innovative therapeutic approaches in the management of NAFLD.
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Affiliation(s)
- Flavia Agata Cimini
- Department of Experimental Medicine, Sapienza University of Rome, Rome I-00161, Italy
| | - Ilaria Barchetta
- Department of Experimental Medicine, Sapienza University of Rome, Rome I-00161, Italy
| | - Simone Carotti
- Department of Medicine and Surgery, Laboratory of Microscopic and Ultrastructural Anatomy, University Campus Bio-Medico of Rome, Rome I-00128, Italy
| | - Sergio Morini
- Department of Medicine and Surgery, Laboratory of Microscopic and Ultrastructural Anatomy, University Campus Bio-Medico of Rome, Rome I-00128, Italy
| | - Maria Gisella Cavallo
- Department of Experimental Medicine, Sapienza University of Rome, Rome I-00161, Italy
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The Influence of Different Cholecalciferol Supplementation Regimes on 25(OH) Cholecalciferol, Calcium and Parathyroid Hormone after Bariatric Surgery. MEDICINA-LITHUANIA 2019; 55:medicina55060252. [PMID: 31174403 PMCID: PMC6630999 DOI: 10.3390/medicina55060252] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Revised: 05/21/2019] [Accepted: 05/22/2019] [Indexed: 11/21/2022]
Abstract
Background and objectives: Vitamin D is an essential vitamin that plays a key role in maintaining physiological calcium balance, and is also a pivotal element in the formation of bone structure. Vitamin D deficiency is associated with a wide array of clinical symptoms. Vitamin and mineral deficiencies are quite common prior to and after bariatric surgery, and therefore we have evaluated the effects of two different cholecalciferol supplementation regimes on serum calcium, 25(OH) cholecalciferol, and parathyroid hormone (PTH). Materials and Methods: In this retrospective matched cohort study, two different cholecalciferol supplementation regimes were compared. Group A consisted of 50 patients who had 1000 mg calcium and 800 IU cholecalciferol. In Group B, 50 patients had 1000 mg calcium and 800 IU cholecalciferol with an additional 1 mL liquid cholecalciferol (50,000 IU) monthly. The primary outcome was the effects on blood serum levels of calcium, 25(OH) cholecalciferol, and PTH. Results: In group A and group B, there were significant increases in 25(OH) cholecalciferol, with a higher delta in favor of group B (for all three p < 0.001). A decrease was seen in PTH (p < 0.001), and no differences were measured in calcium levels in both groups. Conclusion: Our study suggests that an additional 1 mL cholecalciferol (50,000 IU) monthly can result in less biochemically 25(OH) cholecalciferol deficient patients after bariatric surgery. No effects were seen on the calcium balance. However, larger randomized clinical trials need to be done to assess the effects on clinical outcomes like bone health and fracture risk.
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Vivan MA, Kops NL, Fülber ER, de Souza AC, Fleuri MASB, Friedman R. Prevalence of Vitamin D Depletion, and Associated Factors, among Patients Undergoing Bariatric Surgery in Southern Brazil. Obes Surg 2019; 29:3179-3187. [DOI: 10.1007/s11695-019-03963-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Nunes RC, Moura ALG, Silva AL, Oliveira GG, Malta LA, Moreira RO. Avaliação da frequência de deficiência de vitamina D em pacientes com obesidade. HU REVISTA 2019. [DOI: 10.34019/1982-8047.2018.v44.13966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Introdução: A obesidade é um problema de saúde pública mundial. Além das diversas alterações metabólicas encontradas em indivíduos obesos, há evidências de alterações no sistema endócrino, como observado no metabolismo da vitamina D.Objetivos:Avaliar a frequência de deficiência de vitamina D em uma amostra de pacientes adultos com obesidade.Materiais e métodos: Foi realizado um estudo transversal retrospectivo analisando 183 prontuários dos pacientes atendidos pela primeira vez buscando tratamento para obesidade. Após os fatores de exclusão, restaram 113 prontuários válidos.Resultados: O IMC variou de 30.1 a 77.1, com uma mediana de 44.5 kg/m2. Trinta pacientes (26,55 %) tinham a Vitamina D abaixo de 20 ng/ml, sendo considerados com diagnóstico de Deficiência de Vitamina D. Nenhum correlação foi encontrada entre os níveis de Vitamina D e os parâmetros antropométricos. Houve associação significativa estatística dos níveis de Vitamina D com colesterol total (r=-0.26; p=0.0053), LDL-colesterol (r=-0.25; p=0.0071), além de uma tendência à significância com os níveis de TGP (r=0.16; p=0.088).Conclusão: Houve uma elevada frequência de deficiência de vitamina D em pacientes obesos. Não houve correlação entre os níveis de vitamina D e os marcadores antropométricos, porém foi encontrada uma correlação inversa de vitamina D com níveis de colesterol total e LDL-colesterol, mostrando a relação com a dislipidemia. Também, houve uma tendência à significância com os níveis de TGP, o que provavelmente remete à esteatose hepática, comum em obesos.
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Yuzbashian E, Asghari G, Hedayati M, Zarkesh M, Mirmiran P, Khalaj A. Determinants of vitamin D receptor gene expression in visceral and subcutaneous adipose tissue in non-obese, obese, and morbidly obese subjects. J Steroid Biochem Mol Biol 2019; 187:82-87. [PMID: 30412764 DOI: 10.1016/j.jsbmb.2018.11.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 10/14/2018] [Accepted: 11/05/2018] [Indexed: 12/30/2022]
Abstract
We aimed to illustrate determinants of VDR gene expression in visceral and subcutaneous adipose tissue among individuals without diabetes. We gathered visceral and subcutaneous adipose tissues during an elective abdominal surgery form 33 morbidly obese (BMI > 40 kg/m2), 23 obese (BMI = 30-40 kg/m2), and 35 non-obese (BMI<30 kg/m2) participants who were free of diabetes. Participants were classified according to their degree of obesity. Before the surgery, habitual dietary intake, physical activity, 25(OH)D, body mass index (BMI), waist circumference (WC), and HOMA-IR was gathered. Non-obese participants had significantly lower mean VDR gene expression in visceral adipose tissues than both the obese and morbidly obese ones and had also lower expression in subcutaneous adipose tissues than the morbidly obese participants. In multiple linear regression models, BMI and HOMA-IR were the independent positive predictors of VDR gene expression in subcutaneous fat. Among non-obese subjects, WC and 25(OH)D were the positive and negative independent predictors of visceral adipose tissue VDR gene expression, respectively. Among obese participants, 25(OH)D was negatively, and BMI and HOMA-IR were positively associated with VDR mRNA levels in visceral adipose tissue. In morbidly obese participants, the independent positive predictors of VDR gene expression in visceral fat were BMI and HOMA-IR, and negative predictors were 25(OH)D and calcium intake. Our findings suggested that 25(OH)D concentrations are the fundamental elements to determine VDR gene expression in visceral fat which by increasing fat depots, the subsequent insulin resistance became another predictor of VDR gene expression.
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Affiliation(s)
- Emad Yuzbashian
- Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Golaleh Asghari
- Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Clinical Nutrition and Dietetics, Faculty of Nutrition Sciences and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Mehdi Hedayati
- Cellular and Molecular Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Zarkesh
- Cellular and Molecular Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Parvin Mirmiran
- Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Clinical Nutrition and Dietetics, Faculty of Nutrition Sciences and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Alireza Khalaj
- Tehran Obesity Treatment Center, Department of Surgery, Shahed University, Tehran, Iran
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Wieder-Huszla S, Jurczak A, Szkup M, Barczak K, Dołęgowska B, Schneider-Matyka D, Owsianowska J, Grochans E. Relationships between Vitamin D₃ and Metabolic Syndrome. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:E175. [PMID: 30634516 PMCID: PMC6352038 DOI: 10.3390/ijerph16020175] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 12/25/2018] [Accepted: 01/06/2019] [Indexed: 02/06/2023]
Abstract
The growing number of overweight and obese individuals is an alarming global problem; these conditions are risk factors for the development of health problems such as metabolic syndrome (MetS), type-2 diabetes, atherosclerosis, and cardiovascular disease. Numerous studies have suggested that vitamin D₃ deficiency plays a role in the pathogenesis of MetS. The aim of this study was to analyze the relationship between MetS and vitamin D₃ levels in women. Laboratory analysis demonstrated that only 26.89% of the participants had vitamin D₃ levels close to normal, and waist-to-hip ratio (WHR) measurements revealed android obesity in 75.63% of the women. The menstruating women more often suffered from vitamin D₃ deficiency, and less often had elevated vitamin D₃ levels. The conclusions are as follows: (1) There were no statistically significant relationships between vitamin D₃ levels and MetS parameters, namely the level of triglycerides, the levels of low- and high-density lipoproteins (LDL and HDL), the level of total cholesterol, and systolic and diastolic blood pressure (SBP and DBP). Vitamin D deficiency was only observed in the women with abdominal obesity. (2) Low vitamin D₃ levels were typical of perimenopausal women. Age was a variable correlating with vitamin D. (3) The presence of menstrual cycles was an important contributor to vitamin D levels. Vitamin D deficiency was significantly more common in the menstruating women.
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Affiliation(s)
- Sylwia Wieder-Huszla
- Department of Clinical Nursing, Pomeranian Medical University in Szczecin, 70-204 Szczecin, Poland.
| | - Anna Jurczak
- Department of Clinical Nursing, Pomeranian Medical University in Szczecin, 70-204 Szczecin, Poland.
| | - Małgorzata Szkup
- Department of Nursing, Pomeranian Medical University in Szczecin, 70-204 Szczecin, Poland.
| | - Katarzyna Barczak
- Department of Conservative Dentistry and Endodontics, Pomeranian Medical University in Szczecin, 70-204 Szczecin, Poland.
| | - Barbara Dołęgowska
- Department of Microbiology, Immunology and Laboratory Medicine, Pomeranian Medical University in Szczecin, 70-204 Szczecin, Poland.
| | - Daria Schneider-Matyka
- Department of Nursing, Pomeranian Medical University in Szczecin, 70-204 Szczecin, Poland.
| | - Joanna Owsianowska
- Department of Clinical Nursing, Pomeranian Medical University in Szczecin, 70-204 Szczecin, Poland.
| | - Elżbieta Grochans
- Department of Nursing, Pomeranian Medical University in Szczecin, 70-204 Szczecin, Poland.
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Abstract
Obese patients are at higher risk for surgical complications and consist of a large portion of podiatric patients. Obese patients are additionally at increased risk of developing specific podiatric conditions, and it is important to be able to identify and appropriately treat these conditions accordingly. Initially, conservative treatment is adequate for a variety of pathologic conditions related to obesity. Occasionally surgical intervention is warranted depending on the severity and lack of response to conservative measures. Arthrodesis-type procedures are often preferable and may be necessary, as opposed to periarticular osteotomy, in obese patients even if the deformity is flexible.
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SEGHETO KJ, SILVA DCGD, FERREIRA FG, CARVALHO MR, LONGO GZ. Excessive abdominal adiposity and body fat are associated with lower serum vitamin D levels: A population-based study. REV NUTR 2018. [DOI: 10.1590/1678-98652018000600002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
ABSTRACT Objective To estimate the prevalence of 25-hydroxyvitamin D deficiency and to analyze factors associated with lower serum vitamin levels in Brazilian adults. Methods A cross-sectional, population-based study consisted of 626 adult individuals of both sexes living in the urban area of Viçosa, Minas Gerais. The dependent variable used was the serum level of 25-hydroxyvitamin D and the independent variables were sociodemographic, anthropometric and body composition variables. The associations among the variables were verified using simple and multiple linear regression models, considering alpha lower than 0.05 for the input in the final model. Results The prevalence of 25-hydroxyvitamin D deficiency was 14.4% and the prevalence was 42.0%. Excess abdominal fat was higher in subjects with 25-hydroxyvitamin D sufficiency. The serum level of 25-hydroxyvitamin D was 30.34±9.85ng/ml. Body adiposity was higher in men with vitamin insufficiency. Negative associations were observed between serum 25-hydroxyvitamin D levels and age, educational level, body adiposity (p=0.028) and abdominal adiposity (p=0.023). Conclusion Our results showed that excess body and abdominal adiposity are strong predictors of alterations in the serum vitamin D levels, thus public policies for prevention and treatment in this population are essential.
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Enell J, Bayadsi H, Lundgren E, Hennings J. Primary Hyperparathyroidism is Underdiagnosed and Suboptimally Treated in the Clinical Setting. World J Surg 2018. [PMID: 29532143 PMCID: PMC6097779 DOI: 10.1007/s00268-018-4574-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Purpose To evaluate whether patients presenting with laboratory results consistent with primary hyperparathyroidism (pHPT) are managed in accordance with guidelines. Methods The laboratory database at a hospital in Sweden, serving 127,000 inhabitants, was searched for patients with biochemically determined pHPT. During 2014, a total of 365 patients with biochemical laboratory tests consistent with pHPT were identified. Patients with possible differential diagnoses or other reasons for not being investigated according to international guidelines were excluded after scrutinizing records, after new blood tests, and clinical assessments by endocrine surgeons. Results Altogether, 92 patients had been referred to specialists and 82 had not. The latter group had lower serum calcium (median 2.54 mmol/L) and PTH (5.7 pmol/L). Out of these 82 cases, 9 patients were diagnosed with pHPT or had some sort of long-term follow-up planned as outpatients. Conclusion Primary hyperparathyroidism is overlooked and underdiagnosed in a number of patients in the clinical setting. It is important to provide local guidelines for the management of patients presenting with mild pHPT to ensure that these patients receive proper evaluation and follow-up according to current research.
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Affiliation(s)
- Jacob Enell
- Department of Surgical and Perioperative Sciences, Umeå University, 901 85, Umeå, Sweden
| | - Haytham Bayadsi
- Department of Surgical and Perioperative Sciences, Umeå University, 901 85, Umeå, Sweden
| | - Ewa Lundgren
- Department of Surgical Sciences, Uppsala University, 751 85, Uppsala, Sweden
| | - Joakim Hennings
- Department of Surgical and Perioperative Sciences, Umeå University, 901 85, Umeå, Sweden.
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Olmos JM, Hernández JL, Pariente E, Martínez J, González-Macías J. Serum 25-Hydroxyvitamin D in Obese Spanish Adults: the Camargo Cohort Study. Obes Surg 2018; 28:3862-3871. [DOI: 10.1007/s11695-018-3430-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Abstract
Obesity is a global health problem with significant economic and health consequences. There is very little literature in regards to obesity and its effect on foot and ankle surgery, and to the author's knowledge, there has been no consolidated review on this subject to date. The purpose of this article is to provide a comprehensive review as it pertains to foot and ankle surgery, with hopes of improving surgeon decision making, mitigating risk, and providing better outcomes for patients. A better understanding of the effects of obesity also allows for improved prognostic performance.
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Affiliation(s)
- Matthew Stewart
- The Hughston Clinic, 6262 Veterans Parkway, Columbus, GA 31908, USA.
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Nutritional Deficiencies in Chinese Patients Undergoing Gastric Bypass and Sleeve Gastrectomy: Prevalence and Predictors. Obes Surg 2018; 28:2727-2736. [PMID: 29754386 DOI: 10.1007/s11695-018-3225-9] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Neighbors CLP, Noller MW, Song SA, Zaghi S, Neighbors J, Feldman D, Kushida CA, Camacho M. Vitamin D and obstructive sleep apnea: a systematic review and meta-analysis. Sleep Med 2018; 43:100-108. [DOI: 10.1016/j.sleep.2017.10.016] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 10/29/2017] [Accepted: 10/31/2017] [Indexed: 12/19/2022]
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Wolf E, Utech M, Stehle P, Büsing M, Helfrich HP, Stoffel-Wagner B, Egert S, Alteheld B, Riege R, Knapp A, Ellinger S. Oral High-Dose Vitamin D Dissolved in Oil Raised Serum 25-Hydroxy-Vitamin D to Physiological Levels in Obese Patients After Sleeve Gastrectomy-A Double-Blind, Randomized, and Placebo-Controlled Trial. Obes Surg 2018; 26:1821-9. [PMID: 26704923 DOI: 10.1007/s11695-015-2004-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
BACKGROUND Osteomalacia and cardiometabolic disorders are favored in morbidly obese patients due to an inadequate vitamin D (VD) status. Former trials supplementing orally VD (20-50 μg/day) in crystalline form after sleeve gastrectomy (SG) could not stabilize serum 25-hydroxycholecalciferol levels at predefined concentrations (≥50 nmol/l). We hypothesized that VD in an oily suspension would increase its bioavailability resulting in normal serum VD levels minimizing markers of cardiometabolic risk. METHODS Morbidly obese patients (n = 94, BMI 51.8 ± 11.5 kg/m(2)) received orally 80 μg/day VD3 dissolved in oil or placebo (pure oil) in a randomized, double-blind, parallel-group study for 12 weeks after SG. 25-hydroxycholecalciferol, parathyroid hormone, albumin, alkaline phosphatase, phosphate, magnesium, calcium, creatinine, C-reactive protein, lipids, glucose, and glycated hemoglobin were determined in serum/plasma before surgery and after 4 and 12 weeks of supplementation. Intake of energy, fat, and VD were monitored using a 3-day food record. RESULTS Seventy-nine patients were included in statistical analysis. Preoperatively, 77.2 and 40.5 % presented 25-hydroxycholecalciferol levels <75 and <50 nmol/l, respectively. After 12 weeks of supplementation, significantly more patients in the VD group exhibited levels >50 nmol/l (92 %) and >75 nmol/l (68 %) compared to the placebo group (54 and 22 %, respectively). Parameters of mineral metabolism and cardiometabolic risk were not modulated by intervention. CONCLUSION Supplementation of 80 μg/day VD3 by oil is an effective and safe measure to prevent VD deficiency and to treat a preexisting undersupply in patients after SG. Cardiometabolic risk factors were, however, not affected; probably, higher VD doses might be necessary. CLINICAL TRIAL REGISTRATION This trial was registered retrospectively on November 14, 2014, at the German Clinical Trials Register as DRKS00007143.
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Affiliation(s)
- Eva Wolf
- Department of General and Visceral Surgery, Klinikum Vest, Dorstener Str. 151, 45657, Recklinghausen, Germany.,Department of Nutrition and Food Sciences, Nutritional Physiology, University of Bonn, Endenicher Allee 11-13, 53115, Bonn, Germany
| | - Markus Utech
- Department of General and Visceral Surgery, Klinikum Vest, Dorstener Str. 151, 45657, Recklinghausen, Germany
| | - Peter Stehle
- Department of Nutrition and Food Sciences, Nutritional Physiology, University of Bonn, Endenicher Allee 11-13, 53115, Bonn, Germany
| | - Martin Büsing
- Department of General and Visceral Surgery, Klinikum Vest, Dorstener Str. 151, 45657, Recklinghausen, Germany
| | - Hans-Peter Helfrich
- Institute for Numerical Simulation, University of Bonn, Endenicher Allee 60, 53115, Bonn, Germany
| | - Birgit Stoffel-Wagner
- Department of Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, Sigmund-Freud-Str. 25, 53127, Bonn, Germany
| | - Sarah Egert
- Department of Nutrition and Food Sciences, Nutritional Physiology, University of Bonn, Endenicher Allee 11-13, 53115, Bonn, Germany
| | - Birgit Alteheld
- Department of Nutrition and Food Sciences, Nutritional Physiology, University of Bonn, Endenicher Allee 11-13, 53115, Bonn, Germany
| | - Raute Riege
- Department of General and Visceral Surgery, Klinikum Vest, Dorstener Str. 151, 45657, Recklinghausen, Germany
| | - Annette Knapp
- Department of General and Visceral Surgery, Klinikum Vest, Dorstener Str. 151, 45657, Recklinghausen, Germany
| | - Sabine Ellinger
- Department of Nutrition and Food Sciences, Nutritional Physiology, University of Bonn, Endenicher Allee 11-13, 53115, Bonn, Germany. .,Faculty of Food, Nutrition and Hospitality Sciences, Hochschule Niederrhein, University of Applied Sciences, Rheydter Str. 277, 41065, Mönchengladbach, Germany.
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Obispo Entrenas A, Legupin Tubio D, Lucena Navarro F, Martin Carvajal F, Gandara Adan N, Redondo Bautista M, Abiles Osinaga J. Relationship Between Vitamin D Deficiency and the Components of Metabolic Syndrome in Patients with Morbid Obesity, Before and 1 Year After Laparoscopic Roux-en-Y Gastric Bypass or Sleeve Gastrectomy. Obes Surg 2017; 27:1222-1228. [PMID: 27864670 DOI: 10.1007/s11695-016-2445-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Vitamin D deficiency (VDD) is associated with obesity and metabolic syndrome (MS). After bariatric surgery (BS), high rates of VDD often persist and some patients are refractory to the resolution of comorbidities. The aim of the present study is to analyse the relationship between the levels of vitamin D and the persistence of MS components at 12 months after BS, according to the surgical technique used. METHODS We performed a retrospective study of 46 patients undergoing BS: 23 underwent laparoscopic Roux-en-Y gastric bypass (LRYGBP) and 23 laparoscopic sleeve gastrectomy (LSG). These patients had an average BMI of 45 kg/m2 (34-63). Levels of vitamin D were classified as deficient (<20 ng/dl), insufficient (20-30 ng/dl) or normal (>30 ng/dl) and analysed in relation to the components of MS (high blood pressure (HBP), dyslipidaemia (DL) and type 2 diabetes mellitus (T2DM) preoperatively and 12 months after surgery. RESULTS VDD was observed in 77% of the patients prior to surgery. There were no significant associations between predisposing factors and baseline vitamin D. After surgery, plasma levels of vitamin D increased in both groups, but only 18% of the patients achieved normal values. Both groups had achieved significant improvements in MS components. Thus, 63% of all the patients achieved complete resolution of HBP, 54% that of DL and 77% that of T2DM. Moreover, MS was present in 11% of the patients, compared to 63% at baseline, and the MS resolution rate was 83%, with no significant differences between LRYGBP and LSG. CONCLUSIONS There is a relationship between VDD and persistence of MS, and particularly so with T2DM. VDD could represent a predictor of MS persistence at 12 months after surgery.
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Affiliation(s)
- Ana Obispo Entrenas
- Department of Bariatric Surgery, Costa del Sol Hospital, Marbella, Málaga, Spain.
| | - David Legupin Tubio
- Department of Gastroenterology Surgery, Costa del Sol Hospital, Marbella, Málaga, Spain
| | | | | | | | - Maximino Redondo Bautista
- Department of Surgical Specialties, Biochemical and Immunological, Faculty of Medicine, Malaga University, Malaga, Spain
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Luger M, Kruschitz R, Kienbacher C, Traussnigg S, Langer FB, Prager G, Schindler K, Kallay E, Hoppichler F, Trauner M, Krebs M, Marculescu R, Ludvik B. Vitamin D 3 Loading Is Superior to Conventional Supplementation After Weight Loss Surgery in Vitamin D-Deficient Morbidly Obese Patients: a Double-Blind Randomized Placebo-Controlled Trial. Obes Surg 2017; 27:1196-1207. [PMID: 27837387 PMCID: PMC5403855 DOI: 10.1007/s11695-016-2437-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Background Bariatric patients often suffer from vitamin D deficiency (VDD), and both, morbid obesity and VDD, are related to non-alcoholic fatty liver disease. However, limited data are available regarding best strategies for treating VDD, particularly, in bariatric patients undergoing omega-loop gastric bypass (OLGB). Therefore, we examined the efficacy and safety of a forced vitamin D dosing regimen and intervention effects in liver fibrotic patients. Methods In this double-blind, randomized, placebo-controlled trial, 50 vitamin D-deficient patients undergoing OLGB were randomly assigned to receive, in the first month postoperatively, oral vitamin D3 (≤3 doses of 100,000 IU; intervention group) or placebo as loading dose (control group) with subsequent maintenance dose (3420 IU/day) in both groups until 6-month visit. Results Compared with control group, higher increase of 25(OH)D (67.9 (21.1) vs. 55.7 nmol/L (21.1); p = 0.049) with lower prevalence of secondary hyperparathyroidism (10 vs. 24 %; p = 0.045) was observed in intervention group. No (serious) adverse events related to study medication were found. The loading dose regimen was more effective in increasing 25(OH)D in patients with significant liver fibrosis while this was not the case for conventional supplementation (placebo with maintenance dose) (71.5 (20.5) vs. 22.5 nmol/L (13.8); p = 0.022; n = 14). Conclusions Our findings indicate that a high vitamin D3 loading dose, in the first month postoperatively, with subsequent maintenance dose is effective and safe in achieving higher vitamin D concentrations in OLGB patients. Unexpectedly, it is more effective in patients with significant liver fibrosis which is of potentially high clinical relevance and requires further investigation. Electronic supplementary material The online version of this article (doi:10.1007/s11695-016-2437-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Maria Luger
- Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
- Special Institute for Preventive Cardiology and Nutrition-SIPCAN Save Your Life, Salzburg, Austria
- Institute of Social Medicine, Centre for Public Health, Medical University of Vienna, Vienna, Austria
| | - Renate Kruschitz
- Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
- Department of Medicine 1 and Karl Landsteiner Institute for Obesity and Metabolic Diseases, Rudolfstiftung Hospital, Juchgasse 25, 1030 Vienna, Austria
| | - Christian Kienbacher
- Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Stefan Traussnigg
- Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Felix B. Langer
- Division of General Surgery, Department of Surgery, Medical University of Vienna, Vienna, Austria
| | - Gerhard Prager
- Division of General Surgery, Department of Surgery, Medical University of Vienna, Vienna, Austria
| | - Karin Schindler
- Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Enikö Kallay
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Friedrich Hoppichler
- Special Institute for Preventive Cardiology and Nutrition-SIPCAN Save Your Life, Salzburg, Austria
- Division of Internal Medicine, Krankenhaus der Barmherzigen Brüder Salzburg, Salzburg, Austria
| | - Michael Trauner
- Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Michael Krebs
- Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Rodrig Marculescu
- Clinical Institute for Medical and Chemical Laboratory Diagnostics, Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Bernhard Ludvik
- Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
- Department of Medicine 1 and Karl Landsteiner Institute for Obesity and Metabolic Diseases, Rudolfstiftung Hospital, Juchgasse 25, 1030 Vienna, Austria
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Association of Sun Exposure, Skin Colour and Body Mass Index with Vitamin D Status in Individuals Who Are Morbidly Obese. Nutrients 2017; 9:nu9101094. [PMID: 28976930 PMCID: PMC5691711 DOI: 10.3390/nu9101094] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 09/27/2017] [Accepted: 09/28/2017] [Indexed: 12/15/2022] Open
Abstract
Vitamin D deficiency is a common issue, particularly in obese populations, and is tested by assessing serum 25(OH)D concentrations. This study aimed to identify factors that contribute to the vitamin D status in fifty morbidly obese individuals recruited prior to bariatric surgery. Data collected included serum 25(OH)D concentrations, dietary and supplement intake of vitamin D, sun exposure measures, skin colour via spectrophotometry, and genotype analysis of several single nucleotide polymorphisms in the vitamin D metabolism pathway. Results showed a significant correlation between serum 25(OH)D concentrations and age, and serum 25(OH)D and ITAC score (natural skin colour). Natural skin colour accounted for 13.5% of variation in serum 25(OH)D, with every 10° increase in ITAC score (i.e., lighter skin) leading to a 9 nmol/L decrease in serum 25(OH)D. Multiple linear regression using age, ITAC score, and average UV index in the three months prior to testing, significantly predicted serum 25(OH)D concentrations (R² = 29.7%). Single nucleotide polymorphisms for all vitamin D genes tested, showed lower serum 25(OH)D for those with the rare genotype compared to the common genotype; this was most pronounced for fok1 and rs4588, where those with the rare genotype were insufficient (<50 nmol/L), and those with the common genotype were sufficient (≥50 nmol/L). Assessing vitamin D status in individuals with morbid obesity requires testing of 25(OH)D, but potential risk factors for this population include natural skin colour and age.
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ROCHA LM, BALDAN DCDS, SOUZA AL, CHAIM EA, PAVIN EJ, ALEGRE SM. Body composition and metabolic profile in adults with vitamin D deficiency. REV NUTR 2017. [DOI: 10.1590/1678-98652017000400002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
ABSTRACT Objective: To investigate the body composition and metabolic profile in individuals in terms of different concentrations of serum vitamin D, ranging from deficiency to sufficiency. Methods: A cross-sectional study of 106 adults of both genders, who were divided into three groups according to vitamin D levels: deficiency: <20ng/mL; insufficiency: 20-29.9ng/mL; and sufficiency: 30-100ng/mL. Anthropometric evaluation included weight, height, and body circumferences. Fat mass and lean mass were assessed using the Tetrapolar bioelectrical impedance method. Clinical and biochemical evaluations were also carried out. Insulin resistance was estimated using the Homeostasis Model Assessment Insulin index. Results: The analysis showed that the main alterations in individuals in the vitamin D deficiency group were higher triglycerides, very low density lipoprotein - cholesterol, fasting blood glucose, insulin, glycated hemoglobin, body mass index, body fat percentage, lean mass percentage, waist circumference, and Homeostasis Model Assessment Insulin than those of the vitamin D sufficient group (p<0.05). Conclusion: It was found that vitamin D deficiency causes important body composition and metabolic changes, which may lead to diseases such as diabetes Mellitus and metabolic syndrome.
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Silvagno F, Pescarmona G. Spotlight on vitamin D receptor, lipid metabolism and mitochondria: Some preliminary emerging issues. Mol Cell Endocrinol 2017; 450:24-31. [PMID: 28414049 DOI: 10.1016/j.mce.2017.04.013] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 04/07/2017] [Accepted: 04/09/2017] [Indexed: 12/19/2022]
Abstract
Transcriptional control and modulation of calcium fluxes underpin the differentiating properties of vitamin D (1,25(OH)2D3). In the latest years however few studies have pointed out the relevance of the mitochondrial effects of the hormone. It is now time to focus on the metabolic results of vitamin D receptor (VDR) action in mitochondria, which can explain the pleiotropic effects of 1,25(OH)2D3 and may elucidate few contrasting aspects of its activity. The perturbation of lipid metabolism described in VDR knockout mice and vitamin D deficient animals can be revisited based on the newly identified mechanism of action of 1,25(OH)2D3 in mitochondria. From the same point of view, the controversial role of 1,25(OH)2D3 in adipogenesis can be better interpreted.
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Affiliation(s)
- Francesca Silvagno
- Department of Oncology, University of Torino, Via Santena 5 bis, 10126 Torino, Italy.
| | - Gianpiero Pescarmona
- Department of Oncology, University of Torino, Via Santena 5 bis, 10126 Torino, Italy.
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Effects of Laparoscopic Sleeve Gastrectomy on Parathyroid Hormone, Vitamin D, Calcium, Phosphorus, and Albumin Levels. Obes Surg 2017; 27:3149-3155. [DOI: 10.1007/s11695-017-2747-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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47
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Cimini FA, Barchetta I, Carotti S, Bertoccini L, Baroni MG, Vespasiani-Gentilucci U, Cavallo MG, Morini S. Relationship between adipose tissue dysfunction, vitamin D deficiency and the pathogenesis of non-alcoholic fatty liver disease. World J Gastroenterol 2017; 23:3407-3417. [PMID: 28596677 PMCID: PMC5442077 DOI: 10.3748/wjg.v23.i19.3407] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2016] [Revised: 02/28/2017] [Accepted: 04/13/2017] [Indexed: 02/06/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is the most common chronic liver disease worldwide. Its pathogenesis is complex and not yet fully understood. Over the years many studies have proposed various pathophysiological hypotheses, among which the currently most widely accepted is the “multiple parallel hits” theory. According to this model, lipid accumulation in the hepatocytes and insulin resistance increase the vulnerability of the liver to many factors that act in a coordinated and cooperative manner to promote hepatic injury, inflammation and fibrosis. Among these factors, adipose tissue dysfunction and subsequent chronic low grade inflammation play a crucial role. Recent studies have shown that vitamin D exerts an immune-regulating action on adipose tissue, and the growing wealth of epidemiological data is demonstrating that hypovitaminosis D is associated with both obesity and NAFLD. Furthermore, given the strong association between these conditions, current findings suggest that vitamin D may be involved in the relationship between adipose tissue dysfunction and NAFLD. The purpose of this review is to provide an overview of recent advances in the pathogenesis of NAFLD in relation to adipose tissue dysfunction, and in the pathophysiology linking vitamin D deficiency with NAFLD and adiposity, together with an overview of the evidence available on the clinical utility of vitamin D supplementation in cases of NAFLD.
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King RJ, Chandrajay D, Abbas A, Orme SM, Barth JH. High-dose oral colecalciferol loading in obesity: impact of body mass index and its utility prior to bariatric surgery to treat vitamin D deficiency. Clin Obes 2017; 7:92-97. [PMID: 28146321 DOI: 10.1111/cob.12176] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2016] [Revised: 11/07/2016] [Accepted: 11/20/2016] [Indexed: 12/18/2022]
Abstract
Obesity is associated with lower vitamin D levels compared with normal weight subjects, and if levels are not replaced prior to bariatric surgery, this can increase fracture risk as bone density typically falls post-operatively. We analysed the effect of body mass index (BMI) on vitamin D levels in response to 300 000 IU of colecalciferol in patients with vitamin D deficiency (<30 nmol L-1 ). Patients were grouped according to their BMI as normal weight (20-24.9 kg m-2 ), overweight (25-29.9 kg m-2 ), obese class I (30-34.9 kg m-2 ) and obese class II and above (>35 kg m-2 ). The records were retrospectively analysed to investigate the effects of BMI on vitamin D (total 25-hydroxy vitamin D [25(OH)D]), serum Ca2+ and parathyroid hormone (PTH) levels at 6, 12, 26 and 52 weeks compared with baseline. Compared with normal weight subjects, overweight and obese patients achieved lower mean peak total 25(OH)D levels (6 weeks post-loading), which was most significant in the class II and above group (mean total 25(OH)D levels 96.5 ± 24.2 nmol L-1 and 72.42 ± 24.9 nmol L-1 , respectively; P = 0.003). By 26 weeks, total 25(OH)D levels fell in all groups; however, there was now a significant difference between the normal weight subjects and all other groups (mean total 25(OH)D levels 84.1 ± 23.7 nmol L-1 ; 58 ± 20 nmol L-1 , P = 0.0002; 62.65 ± 19.2 nmol L-1 , P = 0.005; 59.2 ± 21 nmol L-1 , P = 0.005, respectively). Far fewer patients in the overweight and obese groups maintained levels above the recommended level of 75 nmol L-1 52 weeks post-loading (93%; 20%, P = 0.0003; 23%, P = 0.01; and 14%, P = 0.001, respectively). Alternative regimes for the treatment of vitamin D deficiency are needed in overweight and obese patients, especially those in whom bariatric surgery is planned.
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Affiliation(s)
- R J King
- Department of Endocrinology, St. James' University Hospital, Leeds, UK
| | - D Chandrajay
- Department of Endocrinology, St. James' University Hospital, Leeds, UK
- Department of Clinical Biochemistry, St. James' University Hospital, Leeds, UK
| | - A Abbas
- Department of Endocrinology, St. James' University Hospital, Leeds, UK
| | - S M Orme
- Department of Endocrinology, St. James' University Hospital, Leeds, UK
| | - J H Barth
- Department of Endocrinology, St. James' University Hospital, Leeds, UK
- Department of Clinical Biochemistry, St. James' University Hospital, Leeds, UK
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Chang E, Kim Y. Vitamin D Insufficiency Exacerbates Adipose Tissue Macrophage Infiltration and Decreases AMPK/SIRT1 Activity in Obese Rats. Nutrients 2017; 9:nu9040338. [PMID: 28353634 PMCID: PMC5409677 DOI: 10.3390/nu9040338] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 03/17/2017] [Accepted: 03/27/2017] [Indexed: 02/06/2023] Open
Abstract
Obesity is recognized as a state of chronic low-grade systemic inflammation due to adipose tissue macrophage infiltration and production of proinflammatory adipokines. Decreased vitamin D status is associated with obesity. The specific aim of the present study is to investigate the effects of vitamin D on obesity-induced adipose tissue inflammation. Male Sprague-Dawley rats were randomized and fed a normal diet (NOR, 1000 IU vitamin D/kg diet), a 45% high-fat diet (HF, 1000 IU vitamin D/kg diet), or a 45% high-fat diet containing 25 IU vitamin D/kg diet (HF+LVD) for 12 weeks. The vitamin D-insufficient diet (HF+LVD) led to vitamin D inadequacy as determined by serum 25(OH)D level, 68.56 ± 7.97 nmol/L. The HF+LVD group exacerbated HF-increased adipocyte size, adipogenic gene expression of PPARγ, adipose tissue macrophage recruitment, and proinflammatory cytokine IL-6 and TNFα levels in epididymal white adipose tissue. In addition, vitamin D insufficiency significantly decreased mRNA levels of β-oxidation-related genes such as CPT1α, PGC1α, PPARα, VLCAD, LCAD, MCAD, and UCP1. Moreover, significant decrements of SIRT1 and AMPK activity were noted in obese rats fed with a vitamin D-insufficient diet. The observed deleterious effects of vitamin D insufficiency on adipose tissue expansion, immune cell infiltration and inflammatory status suggest vitamin D plays a beneficial role in adipocyte metabolic metabolism and obesity progression. SIRT1 and AMPK activity may play a role in the mechanism of vitamin D action.
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Affiliation(s)
- Eugene Chang
- Department of Nutritional Science and Food Management, Ewha Womans University, Seoul 03760, Korea.
| | - Yangha Kim
- Department of Nutritional Science and Food Management, Ewha Womans University, Seoul 03760, Korea.
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Zhang M, Gao Y, Tian L, Zheng L, Wang X, Liu W, Zhang Y, Huang G. Association of serum 25-hydroxyvitamin D 3 with adipokines and inflammatory marker in persons with prediabetes mellitus. Clin Chim Acta 2017; 468:152-158. [PMID: 28259644 DOI: 10.1016/j.cca.2017.02.022] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 02/24/2017] [Accepted: 02/27/2017] [Indexed: 12/31/2022]
Abstract
BACKGROUND The association of vitamin D status and inflammation prediabetes mellitus (PreDM) individuals has not been investigated. We investigated the association of serum 25-hydroxyvitamin D3 (25(OH) D3) with adipokines and inflammatory markers in persons with PreDM. METHODS In this cross-sectional study, we stratified 418 nondiabetic subjects as having PreDM or normal fasting glucose (NFG), and divided PreDM or NFG subjects into vitamin D sufficient, vitamin D insufficient and vitamin D deficient subgroups. 25(OH) D3 concentrations were determined by HPLC. Serum tumor necrosis factor-α (TNF-α), interleiukin-6 (IL-6) and high-sensitivity C-reactive protein (hs-CRP), adiponectin, leptin and resistin were measured by ELISA. RESULTS In the PreDM group, compared with those in the vitamin D sufficient subgroup, vitamin D insufficient subgroup and vitamin D deficient subgroup had higher concentrations of hs-CRP and leptin (P<0.05). In the PreDM-deficient or PreDM-insufficient subgroup, mean hs-CRP and leptin concentration was higher than in the PreDM-sufficient, NFG-deficient, NFG-insufficient and NFG-sufficient subgroups (P<0.05). Serum 25(OH) D3 concentrations were inversely associated with hs-CRP and leptin concentrations after adjusted the BMI only in the PreDM group (P<0.05). At the multivariate analysis, hs-CRP and leptin were the major determinant of 25(OH) D3 concentration (β=-0.174 and β=-0.171, respectively). CONCLUSIONS 25(OH) D3 status in PreDM individuals was inversely correlated with concentrations of hs-CRP and leptin, suggesting their involvement in the inflammation response between vitamin D status and PreDM.
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Affiliation(s)
- Meilin Zhang
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, PR China
| | - Yuxia Gao
- Department of Cardiology, General Hospital of Tianjin Medical University, Tianjin, PR China
| | - Liqiang Tian
- Department of Clinical Laboratory, Tianjin Chest Hospital, Tianjin, PR China
| | - Li Zheng
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, PR China
| | - Xuan Wang
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, PR China
| | - Weiqiao Liu
- Health Education and Guidance Center of Heping District, Tianjin, PR China
| | - Yuwen Zhang
- Health Education and Guidance Center of Heping District, Tianjin, PR China
| | - Guowei Huang
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, PR China.
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