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Vitamin D, diabetes

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https://www.readbyqxmd.com/read/29052001/quail-coturnix-japonica-egg-yolk-bioactive-components-attenuate-streptozotocin-induced-testicular-damage-and-oxidative-stress-in-diabetic-rats
#1
Gideon Oludare Oladipo, Chidinma Martha Nlekerem, Emmanuel Oluwafemi Ibukun, Ayodele Oluseyi Kolawole
INTRODUCTION: The testicular milieu is the machinery for the metabolism of testosterone in the male reproductive system. PURPOSE: The dysfunction of this highly regenerating system is inevitable in the condition of glucose imbalance as a result of insulin machinery impairment. Therefore, it is imperative to recommend dietary intervention for attenuating the testicular dysfunction and oxidative stress resulting from STZ-induction of diabetes. METHODS: STZ-induced diabetes (65 mg/kg, ip) was treated with QEYEM (50, 100 and 200 mg/kg/day) and quercetin (50 mg/kg/day) for 7weeks...
October 19, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/29050900/bone-and-mineral-disorders-in-chronic-kidney-disease-implications-for-cardiovascular-health-and-ageing-in-the-general-population
#2
REVIEW
Adrian Covic, Marc Vervloet, Ziad A Massy, Pablo Ureña Torres, David Goldsmith, Vincent Brandenburg, Sandro Mazzaferro, Pieter Evenepoel, Jordi Bover, Mugurel Apetrii, Mario Cozzolino
The patient with chronic kidney disease (CKD) represents an extreme model for arteriosclerosis, vascular calcification, and bone disorders, all of which are also associated with ageing in the general population. These pathological features are also relevant to other common chronic health disorders such as diabetes, and chronic inflammatory and cardiovascular diseases. Although management and interventions for these major risk factors are now incorporated into most public health guidelines (eg, smoking cessation and control of bodyweight and blood pressure, as well as glucose and cholesterol concentrations), some residual cardiovascular risk is not reduced by implementation of these interventions...
October 16, 2017: Lancet Diabetes & Endocrinology
https://www.readbyqxmd.com/read/29045466/factors-predicting-cardiovascular-events-in-chronic-kidney-disease-patients-role-of-subclinical-atheromatosis-extent-assessed-by-vascular-ultrasound
#3
José M Valdivielso, Angels Betriu, Montserrat Martinez-Alonso, David Arroyo, Marcelino Bermudez-Lopez, Elvira Fernandez
Patients with chronic kidney disease (CKD) have an increased incidence of cardiovascular events (CVE). The contribution of subclinical atheromatosis extent, including femoral arteries, to CVE in CKD patients has not been investigated. In this paper, we examine the prognostic value of subclinical atheromatosis extent, assessed as the number of arterial territories with plaque, in predicting the incidence of major and minor CVE. The NEFRONA is a multicenter, prospective cohorts study that recruited 2445 CKD subjects and 559 controls, free from previous cardiovascular disease, in 81 medical centers across Spain...
2017: PloS One
https://www.readbyqxmd.com/read/29044707/the-effect-of-vitamin-d-supplementation-on-bone-metabolic-markers-in-chronic-kidney-disease
#4
Ashok Kumar Yadav, Vivek Kumar, Vinod Kumar, Debasish Banerjee, Krishan Lal Gupta, Vivekanand Jha
Use of active forms of vitamin D is advocated in CKD patients for treatment of mineral bone disease because of the presumption that native forms of vitamin D would not undergo significant activation to calcitriol, the most active biological form of vitamin D. We present secondary analysis looking at bone turnover in subjects who completed the randomized, double blind, placebo controlled trial investigating the effect of cholecalciferol supplementation on vascular function in non-diabetic CKD stage G3-4 and vitamin D ≤20ng/ml [CTRI/2013/05/003648]...
October 17, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/29042442/1%C3%AE-25-dihydroxyvitamin-d3-promotes-bone-formation-by-promoting-nuclear-exclusion-of-the-foxo1-transcription-factor-in-diabetic-mice
#5
Yi Xiong, Yixin Zhang, Na Xin, Ying Yuan, Qin Zhang, Ping Gong, Yingying Wu
1α,25-Dihydroxyvitamin D3 (1,25(OH)2D3) is the active form of vitamin D, which is responsible for reducing the risk for diabetes mellitus (DM), decreasing insulin resistance, and improving insulin secretion. Previous studies have shown that 1,25(OH)2D3 inhibited the activity of FoxO1, which has been implicated in the regulation of glucose metabolism. However, its function and mechanism of action in DM-induced energy disorders and also in bone development remains unclear. Here, using in vitro and in vivo approaches including osteoblast-specific, conditional FoxO1-knockout mice, we demonstrate that 1,25(OH)2D3 ameliorates abnormal osteoblast proliferation in DM-induced oxidative stress conditions, and rescues the impaired glucose and bone metabolism through FoxO1 nuclear exclusion resulted from the activation of PI3K/Akt signaling...
October 17, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29042175/calcitriol-promotes-proangiogenic-molecules-in-keratinocytes-in-a-diabetic-foot-ulcer-model
#6
Valentin Trujillo, Paulina Marín-Luevano, Irma González-Curiel, Adrián Rodríguez-Carlos, Maira Ramírez-Reyes, Esther Layseca-Espinosa, José A Enciso-Moreno, Lorenza Díaz, Bruno Rivas-Santiago
Foot ulceration is one of the most common and complex sequelae of diabetes mellitus, generally posing a therapeutic challenge due to poor healing responses and high rates of complications, including peripheral vascular disease, ischemia and infections. Calcitriol, the most active vitamin D metabolite, induces antimicrobial peptides production in keratinocytes from diabetic foot ulcers (DFU); however, little is known about its effects on angiogenic factors in this pathology. Herein we aimed at studying whether calcitriol induces angiogenic molecules in keratinocytes under normoxic and hypoxic conditions, and if these molecules are able to improve cell migration in vitro...
October 14, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29024934/the-relationship-between-vitamin-d-and-type-2-diabetes-is-intriguing-glimpses-from-the-spect-china-study
#7
You Lu, Yanjun Zheng, Ningjian Wang, Yingchao Chen, Qin Li, Bing Han, Yi Chen, Jing Cheng, Hualing Zhai, Fangzhen Xia, Ying Meng, Yingli Lu
OBJECTIVE: Vitamin D is a multifunctional vitamin for our body. Type 2 diabetes mellitus (T2DM) is a common metabolic disease. Whether T2DM affects the serum 25(OH)D level has not been reported. The objective of this study was to reveal the extent to which vitamin D is present in the population in East China and to explore the relationship between serum 25(OH)D and T2DM. METHODS: The cohort was selected based on a large investigation named Survey on Prevalence in East China including 12,702 participants aged 21-92 years old...
October 13, 2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/29022676/vitamin-d-deficiency-in-acute-coronary-syndrome-clinically-relevant-or-incidental-finding
#8
Marijana Knežević Praveček, Željka Vuković-Arar, Blaženka Miškić, Irzal Hadžibegović
OBJECTIVE: Vitamin D deficiency has been associated with cardiovascular disease. The aim of this study was to determine serum concentration of 25 hydroxyvitamin D (25(OH)D) in patients with acute coronary syndrome (ACS) and to assess the prognostic role of serum vitamin D level in ACS patients during 3-year follow up. METHODS: The study included 60 ACS patients hospitalized at cardiology department for ACS between March 2012 and October 2012, and 60 age- and sex-matched control patients without ACS...
September 2017: Central European Journal of Public Health
https://www.readbyqxmd.com/read/29021975/effect-of-melatonin-versus-vitamin-d-as-antioxidant-and-hepatoprotective-agents-in-stz-induced-diabetic-rats
#9
Abdulmonim A Alqasim, Essam Eldin M Noureldin, Sami H Hammadi, Ghada E Esheba
BACKGROUND: Diabetes mellitus (DM) is a serious chronic disease, with multiple complications including hepatopathy associated with imbalance of the oxidative status. The purpose of this study is to observe possible protective effects of vitamin-D and melatonin on glucose profile, antioxidant-oxidant status, lipid peroxidation, and histopathological protection of the liver in streptozotocin-induced diabetic rats. METHODS: Eighty three male albino rats were divided into nine groups as follows: G1 (n = 10) Normal control rats; G2 (n = 8) were normal rats treated with melatonin only; G3 (n = 10) were normal rats treated with vitamin D only; G4 (n = 9) were diabetic rats, which received no medications; G5 (n = 8) were diabetic rat treated with insulin only; G6 (n = 10) were diabetic rats treated with melatonin only; G7 (n = 9) were diabetic rats treated with melatonin and insulin; G8 (n = 9) were diabetic rats treated with vitamin D only; G9 (n = 10) were diabetic rats treated with vitamin D and insulin...
2017: Journal of Diabetes and Metabolic Disorders
https://www.readbyqxmd.com/read/29018409/innate-viral-receptor-signaling-determines-type-1-diabetes-onset
#10
REVIEW
Zachary J Morse, Marc S Horwitz
Heritable susceptibility of the autoimmune disorder, type 1 diabetes (T1D), only partially equates for the incidence of the disease. Significant evidence attributes several environmental stressors, such as vitamin D deficiency, gut microbiome, dietary antigens, and most notably virus infections in triggering the onset of T1D in these genetically susceptible individuals. Extensive epidemiological and clinical studies have provided credibility to this causal relationship. Infection by the enterovirus, coxsackievirus B, has been closely associated with onset of T1D and is considered a significant etiological agent for disease induction...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28993865/two-year-cortical-and-trabecular-bone-loss-in-ckd-5d-biochemical-and-clinical-predictors
#11
H H Malluche, M-C Monier-Faugere, G Blomquist, D L Davenport
This prospective two-year study of patients on chronic dialysis measured changes in bone mineral density (BMD). Patients with higher baseline BMD and shorter dialysis vintage lost more bone. Treatment with anti-hypertensives acting on the central nervous system was protective against bone loss. Baseline serum levels of sclerostin and bone-specific alkaline phosphatase predicted bone loss. INTRODUCTION: This prospective 2-year study of chronic kidney disease on dialysis (CKD-5D) patients assessed trabecular and cortical bone loss at the hip and spine and examined potential demographic, clinical, and serum biochemical predictors of bone loss...
October 9, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28993246/vitamin-d-and-the-paraventricular-nucleus-relevance-for-type-2-diabetes
#12
Keisha Harrison, Stephanie Sisley
Vitamin D deficiency is linked to type 2 diabetes and we recently showed this may be through action of vitamin D in the paraventricular nuclei (PVN) in the hypothalamus of the brain. This review focuses on the known roles of the PVN in glucose control and how previously discovered actions of vitamin D in other tissues may translate to action in the PVN. Specifically, we focus on the role of insulin and inflammation in the hypothalamus and how these may be modified through vitamin D action.
October 6, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28989883/status-of-serum-vitamin-d-and-calcium-levels-in-women-of-reproductive-age-in-national-capital-territory-of-india
#13
Nighat Yaseen Sofi, Monika Jain, Umesh Kapil, Vuthaluru Seenu, Lakshmy Ramakrishnan, Chander Prakash Yadav, Ravindra Mohan Pandey
CONTEXT: In India, Vitamin D deficiency is a major public health problem, associated with lack of sunlight exposure in spite of abundant sunshine usually accompanied by reduced dietary intake. In women of reproductive age, Vitamin D deficiency in pregnancy has been associated with an increased risk of gestational diabetes mellitus, preeclampsia, maternal and perinatal morbidity and mortality. AIMS: The aim of the present cross-sectional study was to evaluate the levels of serum Vitamin D 25(OH) D and calcium in women of reproductive age from India...
September 2017: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28977163/use-of-cinacalcet-and-sunitinib-to-treat-hypercalcaemia-due-to-a-pancreatic-neuroendocrine-tumor
#14
Hernan Valdes-Socin, Matilde Rubio Almanza, Mariana Tomé Fernández-Ladreda, Daniel Van Daele, Marc Polus, Marcela Chavez, Albert Beckers
Neuroendocrine tumors (NETs) can secrete hormones, including ectopic secretions, but they have been rarely associated with malignant hypercalcemia. A 52-year-old man with a history of diabetes mellitus was diagnosed with a pancreatic tumor. A pancreatic biopsy confirmed a well-differentiated pancreatic NET (pNET). The patient subsequently developed liver metastasis and hypercalcemia with high 1,25 OH vitamin D and suppressed parathyroid hormone (PTH) levels. Hypercalcemia was refractory to chemotherapy, intravenous saline fluids, diuretics, calcitonin and zoledronate...
September 18, 2017: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28976992/genetic-determinants-of-serum-25-hydroxyvitamin-d-concentration-during-pregnancy-and-type-1-diabetes-in-the-child
#15
Maija E Miettinen, Melissa C Smart, Leena Kinnunen, Valma Harjutsalo, Linnea Reinert-Hartwall, Irene Ylivinkka, Heljä-Marja Surcel, Christel Lamberg-Allardt, Graham A Hitman, Jaakko Tuomilehto
OBJECTIVE: The in utero environment plays an important role in shaping development and later life health of the fetus. It has been shown that maternal genetic factors in the metabolic pathway of vitamin D associate with type 1 diabetes in the child. In this study we analyzed the genetic determinants of serum 25-hydroxyvitamin D (25OHD) concentration during pregnancy in mothers whose children later developed type 1 diabetes and in control mothers. STUDY DESIGN: 474 mothers of type 1 diabetic children and 348 mothers of non-diabetic children were included in the study...
2017: PloS One
https://www.readbyqxmd.com/read/28976079/pre-pregnancy-habitual-intake-of-vitamin-d-from-diet-and-supplements-in-relation-to-risk-of-gestational-diabetes-mellitus-a-prospective-cohort-study
#16
Wei Bao, Yiqing Song, Kimberly A Bertrand, Deirdre K Tobias, Sjurdur F Olsen, Jorge E Chavarro, James L Mills, Frank B Hu, Cuilin Zhang
BACKGROUND: Vitamin D may play a pivotal role in regulating insulin secretion and insulin sensitivity. However, the impact of vitamin D intake either from diet or from supplements on the development of gestational diabetes mellitus (GDM) remains unknown. We prospectively examined the association of pre-pregnancy habitual intake of vitamin D from diet and supplements with risk of incident GDM in a well-established cohort. METHODS: We included 21,356 singleton pregnancies from 15,225 women in the Nurses' Health Study II cohort...
October 4, 2017: Journal of Diabetes
https://www.readbyqxmd.com/read/28976071/prevalence-of-and-predictive-factor-for-abdominal-aortic-calcification-in-thai-chronic-kidney-disease-patients
#17
Dusit Lumlertgul, Surasak Kantachuvesiri, Somboon Apichaiyingyurd, Worapot Treamtrakanpon, Manoch Rattanasompattikul, Pongsathorn Gojaseni, Prasert Thanakitcharu, Thananda Trakarnvanich, Ussanee Poonvivatchaikarn, Kriengsak Vareesangthip
Presence and severity of cardiovascular calcifications strongly predict cardiovascular morbidity and mortality in patients with CKD. This multicenter, cross-sectional study primarily aimed to determine prevalence of abdominal aortic calcification (AAC) detected by plain lateral abdominal radiograph, and secondarily aimed to assess predictive factors for AAC. Patients (N = 1500), aged 18-70 years, with CKD stages 3-5D for ≥3 months prior to evaluation, were enrolled at 24 study centers in Thailand; 54...
October 4, 2017: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/28974732/intermediate-and-low-abundant-protein-analysis-of-vitamin-d-deficient-obese-and-non-obese-subjects-by-maldi-profiling
#18
Nasser M Al-Daghri, Enrica Torretta, Daniele Capitanio, Chiara Fania, Franca Rosa Guerini, Shaun B Sabico, Mario Clerici, Cecilia Gelfi
Obesity is a pathological condition caused by genetic and environmental factors, including vitamin D deficiency, which increases the risk of developing cardiovascular disorders and diabetes. This case-control study was designed to verify whether serum profiles could be identified differentiating obese and non-obese Saudis characterized by vitamin D deficiency and pathological levels of triglycerides, high-density lipoprotein cholesterol and high total cholesterol levels. The serum protein profiles of 64 vitamin D deficient (serum 25(OH)D < 50nmol/L) individuals with metabolic syndrome and with (n = 31; BMI ≥ 30) or without (n = 33; BMI < 30) obesity were analyzed by a quantitative label-free mass spectrometry approach (MALDI-profiling), combined with different serum immunodepletion strategies (Human7 and Human14 immuno-chromatographies), to analyze the intermediate- and low-abundant protein components...
October 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28974557/utility-of-dxa-screening-for-diagnosis-of-osteoporosis-in-us-veterans-aged-70-years-and-older
#19
Joanna Khatib, Kim Stote, Aidar R Gosmanov
Dual energy X-ray absorptiometry (DXA) is recommended for osteoporosis screening in men aged 70 years and older but supportive data is limited. The aim of this study was to determine the efficacy of DXA for the diagnosis of increased fragility in this group of subjects. We retrospectively identified men aged 70 years and older without prior history of fracture and/or conditions predisposing to low bone mineral density (BMD) who attended the VA endocrinology clinic and performed DXA for osteoporosis screening...
October 2, 2017: Journal of Investigative Medicine: the Official Publication of the American Federation for Clinical Research
https://www.readbyqxmd.com/read/28973683/vitamin-d-stored-in-fat-tissue-during-a-5-year-intervention-affects-serum-25-hydroxyvitamin-d-levels-the-following-year
#20
Ieva Martinaityte, Elena Kamycheva, Allan Didriksen, Jette Jakobsen, Rolf Jorde
Context: Vitamin D and 25-hydroxyvitamin D [25(OH)D] are stored in adipose tissue, but the clinical relevance is uncertain. Objective: To evaluate changes in serum 25(OH)D and adipose tissue vitamin D levels after stopping vitamin D supplementation. Design: A prospective, double-blind cohort follow-up study. Setting: Clinical Research Unit at University Hospital of North Norway. Patients: Seventy-six subjects were included after participation in a 3- to 5-year prevention of type 2 diabetes study and were administered 20,000 IU of vitamin D or placebo per week...
October 1, 2017: Journal of Clinical Endocrinology and Metabolism
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