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Wu T, Lin Z, Wang C, Liu X. Correlation between vitamin D levels and blood pressure in elderly hypertensive patients with osteoporosis. Front Med (Lausanne) 2024; 11:1396254. [PMID: 38835803 PMCID: PMC11148424 DOI: 10.3389/fmed.2024.1396254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 05/07/2024] [Indexed: 06/06/2024] Open
Abstract
Objectives The association between vitamin D and blood pressure in elderly patients with hypertension complicated by osteoporosis remains unclear. The objective of this study is to explore whether vitamin D deficiency contributes to elevated blood pressure in elderly individuals with both hypertension and osteoporosis. Methods This study represents a single-center retrospective observational investigation carried out at the Zhongshan Hospital Affiliated to Xiamen University. Ambulatory blood pressure, bone density, vitamin D levels, and additional laboratory parameters were collected upon admission. The association between vitamin D and ambulatory blood pressure outcomes was assessed using Spearman correlation tests and partial correlation analyses. The relationship between vitamin D and changes in blood pressure was analyzed through Generalized Additive Models, and threshold analysis was conducted to explore potential thresholds. Results 139 patients with newly diagnosed osteoporosis were consecutively included (mean age 73 years, 84.9% female). There is a negative correlation between 25-(OH) D3 and 24 h mean systolic blood pressure (mSBP), diurnal mSBP, nocturnal mSBP, maximum SBP, respectively. The results of the generalized additive model analysis show that there is a nonlinear relationship between 25-(OH) D3 and 24 h mSBP, diurnal mSBP, nocturnal mSBP, respectively. After determining the critical point of 25-(OH) D3 as 42 nmol/L, a segmented linear regression model was used to calculate the effect size and 95% confidence interval on both sides of the critical point. When 25-(OH) D3 is ≤42 nmol/L, it significantly negatively correlates with 24 h, diurnal, and nocturnal mean SBP. Conversely, when 25-(OH) D3 exceeds 42 nmol/L, there is no statistically significant association with 24 h, diurnal, or nocturnal mSBP. Conclusion There was a significant negative correlation between vitamin D levels and blood pressure levels in elderly patients with hypertension and osteoporosis.
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Affiliation(s)
- Tianlong Wu
- Department of Geriatrics, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, Fujian, China
| | - Zebin Lin
- Department of Geriatrics, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, Fujian, China
| | - Chizhen Wang
- Department of Geriatrics, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, Fujian, China
| | - Xia Liu
- The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
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2
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Zhang XL, Zhang Q, Zhang X, Gu QW, Pan JJ, Pei YF, Li JF, Jiang F, Diao LJ, Zhou HM, Ding HM, Zhang ZL, Zhou GM, Wang WJ, Li BY. Effect of vitamin D 3 supplementation in winter on physical performance of university students: a one-month randomized controlled trial. J Int Soc Sports Nutr 2023; 20:2258850. [PMID: 37735799 PMCID: PMC10540648 DOI: 10.1080/15502783.2023.2258850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 09/07/2023] [Indexed: 09/23/2023] Open
Abstract
BACKGROUND There is epidemiological evidence which suggests an association between 25-hydroxyvitamin D [25(OH)D] levels and bone and muscle function; however, it is unclear whether vitamin D supplementation has an added benefit beyond bone health. Here, we investigated the effects of vitamin D3 supplementation (1 month) on physical performance in Chinese university students in winter. METHODS One hundred and seventeen eligible subjects with 25(OH)D (19.2 ± 7.8 ng/mL) were randomly assigned to either vitamin D3 supplement (N = 56; 1000 IU/day) or the control (N = 61) group for 1 month. Pre- and post-measurements included: 1) serum levels of 25(OH)D; 2) musculoskeletal and pulmonary function [vertical jump height (VJH) and right handgrip strength (RHS), forced vital capacity (FVC), and forced expiratory volume at 1s (FEV1)]; 3) bone turnover markers [parathyroid hormone (PTH), n-terminal osteocalcin (N-MID), and calcium]; 4) hemoglobin-related parameters [hemoglobin (Hb), hematocrit (HCT), red blood cells (RBC), and red cell distribution width (RDW)]; 5) lipid parameters [total triglycerides (TG), total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), and low-density lipoprotein cholesterol (LDL-C)]; 6) Fatigue-related indicators [serum creatine kinase (CK), lactate dehydrogenase (LDH), and total testosterone (T)]. In addition, aerobic capacity was assessed by measuring maximal oxygen uptake (VO2max) at baseline. RESULTS During wintertime, supplementation with 1000 IU/d of vitamin D3 significantly increased serum 25(OH)D levels (from 18.85 ± 7.04 to 26.98 ± 5.88 ng/mL, p < 0.05), accompanied by a decrease of PTH (p < 0.05). However, vitamin D3 supplementation did not significantly impact the physical performance, serum lipid parameters, and bone turnover markers of students. Furthermore, 25(OH)D was found to be positively correlated with VJH and negatively correlated with PTH and TC at the beginning and end of the study (p < 0.05). In addition, the multiple linear regression analysis showed that 25(OH)D combined with athletic, gender, height, weight, Hb, and FVC could account for 84.0% of the VO2max value. CONCLUSIONS The study demonstrated that one-month of 1000 IU/d of vitamin D3 supplementation during the winter had beneficial effects on 25(OH)D status and PTH. However, vitamin D3 intervention was not sufficient to improve physical performance. Furthermore, 25(OH)D levels combined with athletic, Hb and FVC could be a predictor of VO2max.
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Affiliation(s)
- Xiao-Li Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Medical College of Soochow University, Suzhou, China
| | - Qing Zhang
- School of Physical Education and Sports Science, Soochow University, Suzhou 215021, China
| | - Xu Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Medical College of Soochow University, Suzhou, China
| | - Qin-Wen Gu
- School of Physical Education and Sports Science, Soochow University, Suzhou 215021, China
| | - Jin-Jing Pan
- Department of Nutrition and Food Hygiene, School of Public Health, Medical College of Soochow University, Suzhou, China
| | - Yu-Fang Pei
- Department of Epidemiology and Biostatistics, School of Public Health, Soochow University, Suzhou, China
| | - Jia-Fu Li
- Department of Occupational and Environmental Health, School of Public Health, Medical College of Soochow University, Suzhou, China
| | - Fei Jiang
- Department of Occupational and Environmental Health, School of Public Health, Medical College of Soochow University, Suzhou, China
| | - Ling-Jing Diao
- Department of Nutrition and Food Hygiene, School of Public Health, Medical College of Soochow University, Suzhou, China
| | - Hui-Ming Zhou
- Department of Nutrition and Food Hygiene, School of Public Health, Medical College of Soochow University, Suzhou, China
| | - Hong-Mei Ding
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of Soochow University, Suzhou, China
| | - Zeng-Li Zhang
- Department of Occupational and Environmental Health, School of Public Health, Medical College of Soochow University, Suzhou, China
| | - Guang-Ming Zhou
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou, China
| | - Wen-Jun Wang
- School of Physical Education and Sports Science, Soochow University, Suzhou 215021, China
| | - Bing-Yan Li
- Department of Nutrition and Food Hygiene, School of Public Health, Medical College of Soochow University, Suzhou, China
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3
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Khairy EY, Saad A. Relationship between the thrombospondin-1/Toll-like receptor 4 (TSP1/TLR4) pathway and vitamin D levels in obese and normal weight subjects with different metabolic phenotypes. J Physiol Sci 2023; 73:29. [PMID: 37964189 DOI: 10.1186/s12576-023-00887-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 10/24/2023] [Indexed: 11/16/2023]
Abstract
Thrombospondin-1 (TSP1) contributes to obesity-associated inflammation via activating Toll-like receptor 4 (TLR4). The regulatory role of vitamin D on this pathway has been suggested. This study aimed to investigate the relationship between TSP1/TLR4 pathway and vitamin D in obese and normal weight subjects with different metabolic phenotypes. Thirty obese and thirty normal weight men were selected. Anthropometric parameters and serum TSP1, TLR4, TNF-α, vitamin D, and metabolic profile were determined. Metabolic phenotypes of obese and normal weight subjects were determined. Findings revealed enhanced TSP1/TLR4/TNF-α levels and reduced 25(OH)D levels in obese compared to normal weight subjects and metabolically unhealthy compared to metabolically healthy subjects. TSP1 correlated positively with parameters of unhealthy metabolic profile. TSP1, TLR4 and TNF-α levels significantly negatively correlated with vitamin D levels. In conclusion, vitamin D might exert a regulatory role on TSP1/TLR4 pathway, providing a potential mechanism that links hypovitaminosis D with risk of metabolic dysfunction.
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Affiliation(s)
- Eman Y Khairy
- Department of Physiology, Medical Research Institute, Alexandria University, 165, Horreya Avenue, Hadara, Alexandria, Egypt.
| | - Azza Saad
- Department of Physiology, Medical Research Institute, Alexandria University, 165, Horreya Avenue, Hadara, Alexandria, Egypt
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4
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Jaroslawska J, Carlberg C. In Vivo Regulation of Signal Transduction Pathways by Vitamin D Stabilizes Homeostasis of Human Immune Cells and Counteracts Molecular Stress. Int J Mol Sci 2023; 24:14632. [PMID: 37834080 PMCID: PMC10572664 DOI: 10.3390/ijms241914632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 09/20/2023] [Accepted: 09/25/2023] [Indexed: 10/15/2023] Open
Abstract
Vitamin D3 is a pre-hormone that regulates hundreds of target genes and dozens of physiological functions, including calcium homeostasis and the activity of the immune system, via its metabolite 1,25-dihydroxyvitamin D3, which is a high-affinity ligand for the transcription factor vitamin D receptor. In this study, we took advantage of data from the VitDHiD vitamin D3 intervention trial (25 healthy individuals) indicating that 442 protein-coding genes were significantly (false discovery rate < 0.05) up- or downregulated in peripheral blood mononuclear cells one day after taking a vitamin D3 bolus. Since more than half of the encoded proteins had "signaling" assigned as a primary biological function, we evaluated their involvement in signal transduction cascades included in the KEGG (Kyoto Encyclopedia of Genes and Genomes) database and found 88 of the vitamin D targets contributing to 16 different pathways. Eight of the pathways show an approximately even contribution of up- and downregulated genes, suggesting that the actions of vitamin D stabilize homeostasis of the physiological processes driven by the respective signaling cascades. Interestingly, vitamin D target genes involved in the signaling pathways of hypoxia-inducible factor 1 (HIF1), tumor necrosis factor (TNF), mitogen-activated protein kinases (MAPKs) and nuclear factor κB (NFκB) are primarily downregulated. This supports the observation that the physiological role of vitamin D in healthy individuals is to tone down certain processes rather than activate them. In conclusion, under in vivo conditions, vitamin D either alleviates the homeostasis of immune cells in healthy individuals or counteracts molecular responses to oxygen deprivation (HIF1), microbe infection (TNF), growth stimulation (MAPKs) and inflammation (NFκB).
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Affiliation(s)
- Julia Jaroslawska
- Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-748 Olsztyn, Poland;
| | - Carsten Carlberg
- Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-748 Olsztyn, Poland;
- Institute of Biomedicine, School of Medicine, University of Eastern Finland, 70211 Kuopio, Finland
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5
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Andersen MK, Rüdiger IH, Vestergaard AL, Palarasah Y, Bor P, Larsen A, Bor MV. Vitamin D Deficiency is Associated With Increased Plasminogen Activator Inhibitor 1/Plasminogen Activator Inhibitor 2 Ratio in Pregnancy. Clin Appl Thromb Hemost 2023; 29:10760296231201855. [PMID: 37722759 PMCID: PMC10510367 DOI: 10.1177/10760296231201855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 08/18/2023] [Accepted: 08/30/2023] [Indexed: 09/20/2023] Open
Abstract
BACKGROUND Vitamin D deficiency has recently been suggested as an independent risk factor for thrombosis. Notably, vitamin D deficiency is common in pregnant populations, whom already have an increased thrombotic risk. However, pregnant women are commonly excluded from studies investigating the hemostatic system, and knowledge on the impact of vitamin D on hemostasis in pregnancy is therefore limited. METHODS A cross-sectional study comparing the hemostatic profile of pregnant women (gestational week 12.9 ± 0.7) with vitamin D deficiency (≤50 nmol/L) (n = 70) and high adequate vitamin D status (≥100 nmol/L) (n = 59). RESULTS Vitamin D deficient women displayed increased plasminogen activator inhibitor 1 levels and an increased plasminogen activator inhibitor 1/plasminogen activator inhibitor 2 ratio, even after adjusting for factors with potential influence on hemostasis (body mass index, smoking and use of fish oil supplements). CONCLUSIONS Vitamin D deficiency is associated with increased plasminogen activator inhibitor 1/plasminogen activator inhibitor 2 ratio in pregnant women. As an increased plasminogen activator inhibitor 1/plasminogen activator inhibitor 2 ratio with high plasminogen activator inhibitor 1 levels may increase thrombotic risk and is associated with the development of pregnancy complications, further research is needed to determine the optimal vitamin D supplementation in pregnancy.
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Affiliation(s)
- Matilde Kanstrup Andersen
- Department of Obstetrics and Gynecology, Randers Regional Hospital, Randers, Denmark
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | | | - Anna Louise Vestergaard
- Department of Obstetrics and Gynecology, Randers Regional Hospital, Randers, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Yaseelan Palarasah
- Department of Molecular Medicine, Research Unit for Cancer and Inflammation, University of Southern Denmark, Odense, Denmark
| | - Pinar Bor
- Department of Obstetrics and Gynecology, Randers Regional Hospital, Randers, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Agnete Larsen
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Mustafa Vakur Bor
- Department of Regional Health Research, Thrombosis Research, University of Southern Denmark, Esbjerg, Denmark
- Department of Clinical Biochemistry, University Hospital of Southern Denmark, Esbjerg, Denmark
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6
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Rüdiger IH, Andersen MK, Vestergaard AL, Bor P, Larsen A, Bor MV. Is Vitamin D Deficiency Prothrombotic? A Systematic Review. Semin Thromb Hemost 2022. [PMID: 36174611 DOI: 10.1055/s-0042-1756701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
Observational studies indicate a relationship between vitamin D deficiency and an increased risk of venous and arterial thrombotic events, but the underlying mechanisms behind this association are uncertain. This systematic review explores if there is an association between decreased vitamin D levels and a prothrombotic profile. The systematic literature search initially identified 3,214 studies (published until December 21, 2021) investigating the relationship between vitamin D and numerous hemostatic parameters. After the screening process, 18 observational and intervention studies fulfilled the inclusion criteria and were included in this systematic review. Parameters of primary hemostasis, secondary hemostasis, and fibrinolysis were investigated in six, thirteen, and fifteen of these studies, respectively. Most of the eligible studies did not identify significant associations between decreased vitamin D levels and hemostatic parameters. Some conflicting results were found between decreased vitamin D levels and thrombin generation parameters and the tissue factor pathway inhibitor. Conflicting results were also found between decreased vitamin D levels and fibrinolytic parameters, although the evidence may point toward weak associations with some regulators of fibrinolysis, mostly decreased tissue type plasminogen activator. Overall, our systematic review did not identify any definitive link between vitamin D deficiency and a prothrombotic profile, which might otherwise help explain the observed association between vitamin D deficiency and increased risk of thrombotic events. Moreover, there is no clinical evidence to confirm or refute a possible antithrombotic effect of vitamin D. Larger high-quality randomized controlled trials are needed to better elucidate the link between vitamin D deficiency and a prothrombotic risk profile.
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Affiliation(s)
| | - Matilde Kanstrup Andersen
- Department of Obstetrics and Gynecology, Regional Hospital of Randers, Randers, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Anna Louise Vestergaard
- Department of Obstetrics and Gynecology, Regional Hospital of Randers, Randers, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Pinar Bor
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Agnete Larsen
- Department of Regional Health Research, Thrombosis Research, University of Southern Denmark, Odense, Denmark.,Department of Clinical Biochemistry, University Hospital of Southern Denmark, Esbjerg, Denmark
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7
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Martin BR, Richardson J. An exploratory review of Potential Adjunct Therapies for the Treatment of Coronavirus Infections. J Chiropr Med 2021; 20:199-217. [PMID: 34924893 PMCID: PMC8664662 DOI: 10.1016/j.jcm.2021.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 12/04/2021] [Accepted: 12/06/2021] [Indexed: 10/31/2022] Open
Abstract
Objective The purpose of this exploratory review c, including vitamin D, zinc, vitamin A, elderberry (S nigra), garlic (A sativum), licorice (G glabra), stinging nettle (U dioica), N-acetylcysteine, quercetin and selenium as potential adjunct therapies for the treatment of coronavirus infections. Methods A search of PubMed was performed for articles published from 2005 to 2021. Key words searched were zinc, vitamin A, vitamin D, Sambucus nigra, Allium sativum, Glycyrrhiza glabra, Urtica dioica, N-Acetylcysteine, quercetin, selenium and coronavirus. Results There were 47 articles selected for this review. Findings included that vitamin D, zinc, vitamin A, S nigra, A sativum, G glabra, U dioica, N-acetylcysteine, quercetin and selenium have been shown to produce anti-inflammatory, immunostimulatory or antiviral effects that may enhance the actions of standard therapeutics for the treatment of CoV infections. We found only research articles related to the effects of vitamin D, zinc, G glabra, quercetin and selenium against COVID-19. Conclusion We identified non-pharmaceutical supplements (Vitamin D, zinc, vitamin A, S nigra, A sativum, G glabra and U dioica) which may have potential to provide support for those with coronavirus infections. However, rigorous clinical studies need to be performed before any clinical recommendations can be made at this time.
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Affiliation(s)
- Brett R Martin
- National University of Health Sciences Basic Science Department, Pinellas Park, Fl, USA
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8
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Amarasekera AT, Chang D, Schwarz P, Tan TC. Vascular endothelial dysfunction may be an early predictor of physical frailty and sarcopenia: A meta-analysis of available data from observational studies. Exp Gerontol 2021; 148:111260. [PMID: 33571660 DOI: 10.1016/j.exger.2021.111260] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 01/21/2021] [Accepted: 01/26/2021] [Indexed: 01/16/2023]
Abstract
BACKGROUND Physical frailty and sarcopenia (PF & S) are major public health problems in the older population and promising predictors of adverse cardiovascular outcomes. However, the underlying mechanisms linking physical frailty, sarcopenia and adverse cardiovascular outcomes are not well defined. We recently published a systematic review which highlighted early-stage vascular endothelial dysfunction (VED) as one of the potential underlying mechanisms of physical frailty and the role of inflammation in modulating this association. OBJECTIVE AND METHOD A meta-analysis was performed to estimate the pooled effect size of studies examining the relationship between VED and PF & S. RESULTS Out of 18 cross-sectional studies selected for the original review, 13 studies were excluded due to lack of available data for pooled analysis. The five remaining studies had a total of 6616 participants, of which the pooled sample size of the frail or sarcopenic cohort was 607 and robust or pre-frail or non-sarcopenic cohort was 6009. Mean age of the participants ranging from 64 to 80 years or over. In this analysis, high heterogeneity was observed among studies (99.35% of the variation between studies was due to heterogeneity). Parameters used to assess both PF & S and VED were very different across the studies. CONCLUSION The absence of a standardized and valid operational definition of frailty and sarcopenia is a principal limiting factors for frailty research and this is clearly reflected in our study findings. This limits the ability to interpret and define the effects of vascular endothelial dysfunction on these different parameters of frailty and sarcopenia. Similarly, assessment of vascular endothelial dysfunction was very heterogeneous with different parameters utilized across these studies.
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Affiliation(s)
- Anjalee Thanuja Amarasekera
- Blacktown Clinical and Research School, Western Sydney University, Sydney, Australia; Western Sydney Local Health District, Sydney, Australia; School of Nursing and Midwifery, Blacktown Hospital, Western Sydney University, Sydney, Australia.
| | - Dennis Chang
- NICM Health Research Institute, Western Sydney University, Sydney, Australia
| | - Peter Schwarz
- Department of Clinical Medicine, Rigshospitalet, Denmark
| | - Timothy C Tan
- Western Sydney Local Health District, Sydney, Australia; School of Medicine, Western Sydney University, Sydney, Australia
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9
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Imanparast F, Mashayekhi FJ, Kamankesh F, Rafiei F, Mohaghegh P, Alimoradian A. Improving the endothelial dysfunction in type 2 diabetes with chromium and vitamin D 3 byreducing homocysteine and oxidative stress: A randomized placebo-controlled trial. J Trace Elem Med Biol 2020; 62:126639. [PMID: 32971450 DOI: 10.1016/j.jtemb.2020.126639] [Citation(s) in RCA: 8] [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: 04/11/2020] [Revised: 08/19/2020] [Accepted: 08/28/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND Chromium picolinate (CrPic) and vitamin D3 are known as two antioxidant micronutrients. Through inducing endothelial dysfunction, oxidants such as homocysteine (Hct) and malondialdehyde (MDA) lead to cardiovascular disease in type 2 diabetes mellitus (T2DM). No published data has directly examined the effects of these two antioxidants on improving the endothelial dysfunction in T2DM throughreducing homocysteine and oxidative stress. METHODS Subjects (n = 92) in this randomized, double blind, placebo-control study were randomly assigned to receive oral placebo (group I), D3 (group II: 50,000 IU/ week), chromium picolinate (CrPic) (group III: 500 μg/day), and both vitamin D3 and CrPic (group IV) for four months. Fasting blood samples were drawn at study baseline and following intervention to determine Hct, MDA, total antioxidant capacity (TAC), total thiol groups (SHs), vascular cell adhesion molecule- 1 (VCAM-1), and plasminogen activator inhibitor-1 (PAI-1). RESULTS After intervention, MDA significantly decreased in groups II and IV; TAC significantly increased in group IV, and SHs significantly augmented in group III; Hct was significantly reduced in groups II, III, and IV; and VCAM-1 significantly decreased in groups III and IV and PAI-1 was significantly reduced in groups II, III, and IV. CONCLUSION Our findings suggest that through reducing homocysteine and oxidative stress and improving endothelial dysfunction, chromium and vitamin D3 co-supplementation might be predictive and preventive of cardiovascular diseasesassociated with T2DM. IRCT, IRCT20190610043852N1, registered 21 October 2019, https://fa.irct.ir/user/trial/42293/view.
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Affiliation(s)
- Fatemeh Imanparast
- Traditional and Complementary Medicine Research Center, Arak University of Medical Sciences, Arak, Iran; Department of Biochemistry, Khomein University of Medical Sciences, Khomein, Iran.
| | - Farideh Jalali Mashayekhi
- Department of Biochemistry and Genetics, Faculty of Medicine, Arak University of Medical Sciences, Arak, Iran; Department of Laboratory Sciences, Faculty of Paramedicine, Arak University of Medical Sciences, Arak, Iran
| | - Fatemeh Kamankesh
- Department of Biochemistry, Khomein University of Medical Sciences, Khomein, Iran
| | - Fatemeh Rafiei
- Department of Biostatistics and Epidemiology, School of Health, Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Pegah Mohaghegh
- Community and Preventive Medicine Specialist, Department of community medicine, Faculty of Medicine, Arak University of Medical Sciences, Arak, Iran
| | - Abbas Alimoradian
- Department of Pharmacology, School of Medicine, Arak University of Medical Sciences, Arak, Iran
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10
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Fernández-Simón E, Lleixà C, Suarez-Calvet X, Diaz-Manera J, Illa I, Gallardo E, de Luna N. Proteasome inhibitors reduce thrombospondin-1 release in human dysferlin-deficient myotubes. BMC Musculoskelet Disord 2020; 21:784. [PMID: 33246442 PMCID: PMC7697384 DOI: 10.1186/s12891-020-03756-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 10/30/2020] [Indexed: 11/16/2022] Open
Abstract
Background Dysferlinopathies are a group of muscle disorders causing muscle weakness and absence or low levels of dysferlin, a type-II transmembrane protein and the causative gene of these dystrophies. Dysferlin is implicated in vesicle fusion, trafficking, and membrane repair. Muscle biopsy of patients with dysferlinopathy is characterized by the presence of inflammatory infiltrates. Studies in the muscle of both human and mouse models of dysferlinopathy suggest dysferlin deficient muscle plays a role in this inflammation by releasing thrombospondin-1. It has also been reported that vitamin D3 treatment enhances dysferlin expression. The ubiquitin-proteasome system recognizes and removes proteins that fail to fold or assemble properly and previous studies suggest that its inhibition could have a therapeutic effect in muscle dystrophies. Here we assessed whether inhibition of the ubiquitin proteasome system prevented degradation of dysferlin in immortalized myoblasts from a patients with two missense mutations in exon 44. Methods To assess proteasome inhibition we treated dysferlin deficient myotubes with EB1089, a vitamin D3 analog, oprozomib and ixazomib. Western blot was performed to analyze the effect of these treatments on the recovery of dysferlin and myogenin expression. TSP-1 was quantified using the enzyme-linked immunosorbent assay to analyze the effect of these drugs on its release. A membrane repair assay was designed to assess the ability of treated myotubes to recover after membrane injury and fusion index was also measured with the different treatments. Data were analyzed using a one-way ANOVA test followed by Tukey post hoc test and analysis of variance. A p ≤ 0.05 was considered statistically significant. Results Treatment with proteasome inhibitors and EB1089 resulted in a trend towards an increase in dysferlin and myogenin expression. Furthermore, EB1089 and proteasome inhibitors reduced the release of TSP-1 in myotubes. However, no effect was observed on the repair of muscle membrane after injury. Conclusions Our findings indicate that the ubiquitin-proteasome system might not be the main mechanism of mutant dysferlin degradation. However, its inhibition could help to improve muscle inflammation by reducing TSP-1 release. Supplementary Information The online version contains supplementary material available at 10.1186/s12891-020-03756-7.
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Affiliation(s)
- Esther Fernández-Simón
- Neuromuscular Diseases group. Institut de Recerca Hospital de Sant Pau, Biomedical Research Institute Sant Pau (IIB Sant Pau), Universitat Autónoma de Barcelona, c/Sant Antoni Mª Claret 167, 08025, Barcelona, Spain
| | - Cinta Lleixà
- Neuromuscular Diseases group. Institut de Recerca Hospital de Sant Pau, Biomedical Research Institute Sant Pau (IIB Sant Pau), Universitat Autónoma de Barcelona, c/Sant Antoni Mª Claret 167, 08025, Barcelona, Spain
| | - Xavier Suarez-Calvet
- Neuromuscular Diseases group. Institut de Recerca Hospital de Sant Pau, Biomedical Research Institute Sant Pau (IIB Sant Pau), Universitat Autónoma de Barcelona, c/Sant Antoni Mª Claret 167, 08025, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Valencia, Spain
| | - Jordi Diaz-Manera
- Neuromuscular Diseases group. Institut de Recerca Hospital de Sant Pau, Biomedical Research Institute Sant Pau (IIB Sant Pau), Universitat Autónoma de Barcelona, c/Sant Antoni Mª Claret 167, 08025, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Valencia, Spain.,Department of Neurology, Neuromuscular Diseases Unit, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Isabel Illa
- Neuromuscular Diseases group. Institut de Recerca Hospital de Sant Pau, Biomedical Research Institute Sant Pau (IIB Sant Pau), Universitat Autónoma de Barcelona, c/Sant Antoni Mª Claret 167, 08025, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Valencia, Spain.,Department of Neurology, Neuromuscular Diseases Unit, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Eduard Gallardo
- Neuromuscular Diseases group. Institut de Recerca Hospital de Sant Pau, Biomedical Research Institute Sant Pau (IIB Sant Pau), Universitat Autónoma de Barcelona, c/Sant Antoni Mª Claret 167, 08025, Barcelona, Spain. .,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Valencia, Spain.
| | - Noemí de Luna
- Neuromuscular Diseases group. Institut de Recerca Hospital de Sant Pau, Biomedical Research Institute Sant Pau (IIB Sant Pau), Universitat Autónoma de Barcelona, c/Sant Antoni Mª Claret 167, 08025, Barcelona, Spain. .,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Valencia, Spain.
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Isenberg JS, Roberts DD. Thrombospondin-1 in maladaptive aging responses: a concept whose time has come. Am J Physiol Cell Physiol 2020; 319:C45-C63. [PMID: 32374675 DOI: 10.1152/ajpcell.00089.2020] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Numerous age-dependent alterations at the molecular, cellular, tissue and organ systems levels underlie the pathophysiology of aging. Herein, the focus is upon the secreted protein thrombospondin-1 (TSP1) as a promoter of aging and age-related diseases. TSP1 has several physiological functions in youth, including promoting neural synapse formation, mediating responses to ischemic and genotoxic stress, minimizing hemorrhage, limiting angiogenesis, and supporting wound healing. These acute functions of TSP1 generally require only transient expression of the protein. However, accumulating basic and clinical data reinforce the view that chronic diseases of aging are associated with accumulation of TSP1 in the extracellular matrix, which is a significant maladaptive contributor to the aging process. Identification of the relevant cell types that chronically produce and respond to TSP1 and the molecular mechanisms that mediate the resulting maladaptive responses could direct the development of therapeutic agents to delay or revert age-associated maladies.
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Affiliation(s)
| | - David D Roberts
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
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Dibaba DT. Effect of vitamin D supplementation on serum lipid profiles: a systematic review and meta-analysis. Nutr Rev 2020; 77:890-902. [PMID: 31407792 DOI: 10.1093/nutrit/nuz037] [Citation(s) in RCA: 77] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
CONTEXT Vitamin D deficiency is highly prevalent across the world. The existing evidence suggests vitamin D may have beneficial effects on serum lipid profiles and thus cardiovascular health. OBJECTIVE The objective of this systematic review and meta-analysis was to examine the effect of vitamin D supplementation on serum lipid profiles. DATA SOURCE Original randomized controlled trials (RCTs) examining the effect of vitamin D supplementation on serum lipid profiles and published before July 2018 were identified by searching online databases, including PubMed, Google Scholar, and ScienceDirect, using a combination of relevant keywords. DATA EXTRACTION Data on study characteristics, effect size, measure of variation, type of vitamin D supplementation, and duration of follow-up were extracted by the author. DATA ANALYSIS PRISMA guidelines for systematic reviews were followed. Random effects (DerSimonian and Laird [D-V)] models were used to pool standardized mean differences in total cholesterol, low-density lipoprotein (LDL) cholesterol, high-density lipoprotein (HDL) cholesterol, and triglycerides between the active and the placebo arms of RCT studies. Between-study heterogeneities were assessed using Cochrane Q and I2, and publication bias was assessed using Begg's test, Egger's test, and funnel plot. RESULTS A total of 41 RCTs comprising 3434 participants (n = 1699 in the vitamin D supplementation arm and n = 1735 in the placebo arm) were identified and included in the meta-analysis. Approximately 63.4% of study participants were women, with 14 studies conducted entirely among women. Approximately 24% of the trials had follow-up duration >6 months, whereas the remaining 76% had follow-up duration of <6 months. The standardized mean differences (SMDs) and 95% confidence intervals (CIs) for comparing the change from baseline to follow-up between the vitamin D supplementation arm and the placebo (control) arm were as follows: total cholesterol = -0.17 (-0.28 to -0.06); LDL cholesterol = -0.12 (-0.23 to -0.01); triglycerides = -0.12 (-0.25 to 0.01); and HDL cholesterol = -0.19 (-0.44 to 0.06). After removing a trial that was an outlier based on the magnitude of the effect size, the SMD for triglycerides was -0.15 (-0.24 to -0.06) and that for HDL cholesterol was -0.10 (-0.28 to 0.09). The improvements in total cholesterol and triglycerides were more pronounced in participants with baseline vitamin D deficiency. CONCLUSIONS Vitamin D supplementation appeared to have a beneficial effect on reducing serum total cholesterol, LDL cholesterol, and triglyceride levels but not HDL cholesterol levels. Vitamin D supplementation may be useful in hypercholesterolemia patients with vitamin D insufficiency who are at high risk of cardiovascular diseases.
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Affiliation(s)
- Daniel T Dibaba
- TN-Clinical and Translational Science Institute, University of Tennessee, Health Science Center, Memphis, Tennessee, USA; and the Department of Epidemiology, College of Public Health, and the Markey Cancer Center, University of Kentucky, Lexington, Kentucky, USA
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Abstract
BACKGROUND Thrombospondin-1 (TSP-1) and 25-hydroxyvitamin D (25-OHD) play significant roles in the pathogenesis of sickle cell anemia (SCA). TSP-1 enhances cellular adhesion/inflammation, hence contributing to vaso-occlusive crisis (VOC); vitamin D, in contrast, retards inflammation and may lower rate of pain episodes. We determined serum levels of TSP-1 and 25-OHD in Nigerian children with SCA and their matched hemoglobin AA controls; and assess the relationship between the 2 biomarkers. METHODS In total 90 children (32 SCA in steady state, 30 SCA in VOC, and 28 HbAA controls) were studied. Serum TSP-1 and 25-OHD levels were measured with ELISA and HPLC, respectively. RESULTS The mean TSP-1 of children with VOC was significantly higher than those in steady state (P=0.022) and HbAA controls (P<0.001). Similarly, the mean TSP-1 of those in steady state was higher than the controls (P=0.007). However, mean serum 25-OHD of the children with VOC was significantly lower than those in steady state (28.9±8.2 ng/mL vs. 37.1±12.3 ng/mL, P =0.004). There was a significant inverse correlation between TSP-1 and 25-OHD among the VOC subgroup, r=-0.57, P=0.001. The mean TSP-1 of the 28 children with SCA who had suboptimal vitamin D (213.5±118.6 ng/mL) was higher than 144.2±58.7 ng/mL of the 34 SCA who had normal serum vitamin D, P=0.008. CONCLUSIONS Children with SCA, especially those with VOC, had high serum TSP-1 and low 25-OHD. Also, an inverse relationship exist between serum 25-OHD and TSP-1 in children with VOC. These findings provide basis for further studies into the regulation of TSP-1 by vitamin D.
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