83 research outputs found

    Evaluation of the efficacy of two doses of vitamin D supplementation on glycemic, lipidemic and oxidative stress biomarkers during pregnancy: a randomized clinical trial

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    Background: Vitamin D deficiency during pregnancy is common and is likely to be associated with metabolic complications in the mother. The aim of this study was to assess the efficacy of two doses of vitamin D supplementation during pregnancy on maternal and cord blood vitamin D status and metabolic and oxidative stress biomarkers. Methods: The eligible pregnant women (n = 84) invited to participate in the study and randomly allocated to one of the two supplementation groups (1000 IU/d vitamin D and 2000 IU/d). Biochemical assessments of mothers including serum concentrations of 25(OH)D, calcium, phosphate, iPTH, fasting serum sugar (FBS), insulin, triglyceride, total cholesterol, LDL-C, HDL-C, malondialdehyde (MDA) and total antioxidant capacity (TAC) were done at the beginning and 34 weeks of gestation. Cord blood serum concentrations of 25(OH)D, iPTH, MDA and TAC were assessed at delivery as well. To determine the effects of vitamin D supplementation on metabolic markers 1-factor repeated-measures analysis of variance (ANOVA) was used. Between groups comparisons was done by using Independent-samples Student�s t-test or Mann-Whitney test. P < 0.05 was considered as significant. Results: Supplementation with 1000 IU/d and 2000 IU/d vitamin D resulted in significant changes in vitamin D status over pregnancy (24.01 ± 21.7, P < 0.001 in 1000 IU/d group and 46.7 ± 30.6 nmol/L, P < 0.001 in 2000 IU/d group). Daily intake of 2000 compared with 1000 IU/d tended to increase the serum concentration of HDL-C (10 ± 8.37, P < 0.001 in 1000 IU/d group and 9.52 ± 11.39 mg/dL, P < 0.001 in 2000 IU/d group). A significant decrement in serum concentration of iPTH observed in both groups (� 4.18 ± 7.5, P = 0.002 in 1000 IU/d group and � 8.36 ± 14.17, P = 0.002 in 2000 IU/d group). Conclusions: Supplementation with 2000 IU/d vitamin D as compared with 1000 IU/d, is more effective in promoting vitamin D status and HDL-C serum concentration and in decreasing iPTH over pregnancy. Trial registration: This trial is registered at clinicaltrials.gov (NCT03308487). Registered 12 October 2017 �retrospectively registered�. © 2020, The Author(s)

    Feasibility study: investigation of car park-based V2G services in the UK central hub

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    The increasing uptake of electric vehicles, and the established practice of long-term parking at stations and airports, offers an opportunity to develop a flexible approach to help with the energy storage dilemma. This paper investigates the feasibility of using a number of EV batteries as an energy storage and grid balancing solution within the UK Central Hub area. Here, the capital cost of the vehicle is a sunk cost to the EV owner. The potential income generated, or discount on long-term parking, is an additional benefit of ownership. This paper considers the income available to a small and large size car park from the different market mechanisms to offer grid support in the UK and contrasts this with the complexity and costs of the EV charging infrastructure required within these types of scheme

    Regular consumption of vitamin D-fortified yogurt drink (Doogh) improved endothelial biomarkers in subjects with type 2 diabetes: a randomized double-blind clinical trial

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    <p>Abstract</p> <p>Background</p> <p>Endothelial dysfunction has been proposed as the underlying cause of diabetic angiopathy that eventually leads to cardiovascular disease, the major cause of death in diabetes. We recently demonstrated the ameliorating effect of regular vitamin D intake on the glycemic status of patients with type 2 diabetes (T2D). In this study, the effects of improvement of vitamin D status on glycemic status, lipid profile and endothelial biomarkers in T2D subjects were investigated.</p> <p>Methods</p> <p>Subjects with T2D were randomly allocated to one of the two groups to receive either plain yogurt drink (PYD; containing 170 mg calcium and no vitamin D/250 mL, n<sub>1 </sub>= 50) or vitamin D3-fortified yogurt drink (FYD; containing 170 mg calcium and 500 IU/250 mL, n<sub>2 </sub>= 50) twice a day for 12 weeks. Anthropometric measures, glycemic status, lipid profile, body fat mass (FM) and endothelial biomarkers including serum endothelin-1, E-selectin and matrix metalloproteinase (MMP)-9 were evaluated at the beginning and after the 12-week intervention period.</p> <p>Results</p> <p>The intervention resulted in a significant improvement in fasting glucose, the Quantitative Insulin Check Index (QUICKI), glycated hemoglobin (HbA1c), triacylglycerols, high-density lipoprotein cholesterol (HDL-C), endothelin-1, E-selectin and MMP-9 in FYD compared to PYD (<it>P </it>< 0.05, for all). Interestingly, difference in changes of endothelin-1, E-selectin and MMP-9 concentrations in FYD compared to PYD (-0.35 ± 0.63 versus -0.03 ± 0.55, <it>P </it>= 0.028; -3.8 ± 7.3 versus 0.95 ± 8.3, <it>P </it>= 0.003 and -2.3 ± 3.7 versus 0.44 ± 7.1 ng/mL, respectively, <it>P </it>< 0.05 for all), even after controlling for changes of QUICKI, FM and waist circumference, remained significant for endothelin-1 and MMP-9 (<it>P </it>= 0.009 and <it>P </it>= 0.005, respectively) but disappeared for E-selectin (<it>P </it>= 0.092). On the contrary, after controlling for serum 25(OH)D, the differences disappeared for endothelin-1(<it>P </it>= 0.066) and MMP-9 (<it>P </it>= 0.277) but still remained significant for E-selectin (<it>P </it>= 0.011).</p> <p>Conclusions</p> <p>Ameliorated vitamin D status was accompanied by improved glycemic status, lipid profile and endothelial biomarkers in T2D subjects. Our findings suggest both direct and indirect ameliorating effects of vitamin D on the endothelial biomarkers.</p> <p>Trial registration</p> <p>ClinicalTrials.gov: <a href="http://www.clinicaltrials.gov/ct2/show/NCT01236846">NCT01236846</a></p

    Transnational relationships and cultural identity of older migrants

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    "This article does not exactly replicate the final version published in the journal "GeroPsych". It is not a copy of the original published article and is not suitable for citation."We take a social identity approach to explore the associations between cultural heritage, social class, social support networks, transnational relationships and cultural identity. Data for 815 older people (≥ 55 years) from six ethnic groups living in England and Wales are used to help understand older migrants’ ethnic identity, cultural identity with the family’s country of origin and British identity. Regression models explain a low amount of variance. Different configurations of the independent variables - cultural heritage, social class, social support networks and transnational relationships (with children, siblings, other relatives) - predicted different forms of cultural identity. Transnational relationships provide migrants with a range of alternative identities into which they self-categorize or contrast to their group identity.This work was supported by the Leverhulme Trust (F/00275/Q); and the National Institute of Social Care and Health Research (SCRA/10/02)

    Vitamin D Receptor Gene Polymorphisms Modify Cardiometabolic Response to Vitamin D Supplementation in T2DM Patients

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    There is conflicting evidence on the favorable effects of vitamin D supplementation on metabolic profile in Type 2 diabetes mellitus (T2DM) patients and this might be due to genetic variations in vitamin D receptors (VDRs). Thus, we studied the metabolic effects of a 12-month vitamin D supplementation in T2DM patients according to VDR polymorphisms. A total of 204 T2DM subjects received 2000 IU vitamin D3 daily for 12 months. Serum 25(OH)D and metabolic profiles were measured at baseline and after 12 months. VDR polymorphisms (Taq-I, Bsm-I, Apa-I and Fok-I) were identified using TaqMan genotyping assays. Vitamin D supplementation significantly increased HOMA β-cell function (p = 0.003) as well as significantly decreased triglycerides, total and LDL-cholesterol (p < 0.001). The lowest increment in 25(OH)D levels was detected in patients with Fok-I CC genotypes (p < 0.0001). With vitamin D supplementation, Taq-I GG genotype carriers showed significant improvements in triglycerides, LDL- and total cholesterol, insulin, HbA1c and HOMA-IR (p < 0.005, 0.01, < 0.001, < 0.005, 0.03 and 0.01, respectively). Similarly, Bsm-I TT genotype carriers showed significant improvements in triglycerides (p = 0.01), insulin and HOMA-IR (p-values < 0.05). In conclusion, improvements in metabolic profile due to vitamin D supplementation is influenced by VDR polymorphisms, specifically for carriers of Taq-I GG and Bsm-I TT genotypes

    Development of Effective Cancer Vaccine Using Targeting System of Antigen Protein to APCs.

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    PURPOSE: To develop a novel cancer vaccine using the targeting system of antigen protein to antigen-presenting cells (APCs) for efficient and safe cancer therapy. METHODS: The novel delivery system was constructed with antigen protein, benzalkonium chloride (BK), and γ-polyglutamic acid (γ-PGA), using ovalbumin (OVA) as a model antigen protein and evaluating its immune induction effects and utilities for cancer vaccine. RESULTS: BK and γ-PGA enabled encapsulation of OVA and formed stable anionic particles at nanoscale, OVA/BK/γ-PGA complex. Complex was taken up by dendritic cell line DC2.4 cells efficiently. We subcutaneously administered the complex to mice and examined induction of IgGs. The complex induced not only Th2-type immunoglobulins but also Th1-type immunoglobulins. OVA/BK/γ-PGA complex inhibited tumor growth of E.G7 cells expressing OVA regularly; administered OVA/BK/γ-PGA complex completely rejected tumor cells. CONCLUSION: The novel vaccine could be platform technology for a cancer vaccine

    Medicinal plants – prophylactic and therapeutic options for gastrointestinal and respiratory diseases in calves and piglets? A systematic review

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