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Vitamin D AND Tgf-beta

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https://www.readbyqxmd.com/read/27239252/rutin-attenuates-hepatotoxicity-in-high-cholesterol-diet-fed-rats
#1
Shakir D AlSharari, Salim S Al-Rejaie, Hatem M Abuohashish, Mohamed M Ahmed, Mohamed M Hafez
Background and Objective. High-cholesterol diet (HCD) intends to increase the oxidative stress in liver tissues inducing hepatotoxicity. Rutin is a natural flavonoid (vitamin p) which is known to have antioxidative properties. The aim of the present study was to investigate the potential effects of Rutin on hypercholesterolemia-induced hepatotoxicity in rats. Materials and Methods. Male Wistar rats were divided into four groups: G-I control, G-II Rutin, G-III HCD, and G-IV Rutin + HCD. The liver functions and lipid profile were used to evaluate the HCD-induced hepatotoxicity...
2016: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/27222384/synergistic-effect-of-vitamin-d-and-low-concentration-of-transforming-growth-factor-beta-1-a-potential-role-in-dermal-wound-healing
#2
Jie Ding, Peter Kwan, Zengshuan Ma, Takashi Iwashina, Jianfei Wang, Heather A Shankowsky, Edward E Tredget
Dermal wound healing, in which transforming growth factor beta 1 (TGFβ1) plays an important role, is a complex process. Previous studies suggest that vitamin D has a potential regulatory role in TGFβ1 induced activation in bone formation, and there is cross-talk between their signaling pathways, but research on their effects in other types of wound healing is limited. The authors therefore wanted to explore the role of vitamin D and its interaction with low concentration of TGFβ1 in dermal fibroblast-mediated wound healing through an in vitro study...
September 2016: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/26037400/vitamin-d-levels-in-multiple-sclerosis-patients-association-with-tgf-%C3%AE-2-tgf-%C3%AE-ri-and-tgf-%C3%AE-rii-expression
#3
Zeinab Shirvani-Farsani, Mehrdad Behmanesh, Seyed Mahdi Mohammadi, Abdorreza Naser Moghadasi
AIM: A variety of evidence suggests that vitamin D can prevent the development of multiple sclerosis (MS). TGF-β pathway genes also play important roles in MS. Here, we aim to study whether vitamin D affects TGF-β pathway gene expression and Expanded Disability Status Scale (EDSS) scores in MS patients. MAIN METHODS: A randomized clinical trial was conducted on 31 relapsing-remitting (RR) MS patients. Using real-time RT-PCR, we tested the levels of TGF-β2, TGF-βRI and TGF-βRII mRNAs in the RRMS patients before and after 8 weeks of supplementation with vitamin D...
August 1, 2015: Life Sciences
https://www.readbyqxmd.com/read/25879625/signaling-pathways-in-leiomyoma-understanding-pathobiology-and-implications-for-therapy
#4
REVIEW
Mostafa A Borahay, Ayman Al-Hendy, Gokhan S Kilic, Darren Boehning
Uterine leiomyomas are the most common tumors of the female genital tract, affecting 50% to 70% of females by the age of 50. Despite their prevalence and enormous medical and economic impact, no effective medical treatment is currently available. This is, in part, due to the poor understanding of their underlying pathobiology. Although they are thought to start as a clonal proliferation of a single myometrial smooth muscle cell, these early cytogenetic alterations are considered insufficient for tumor development and additional complex signaling pathway alterations are crucial...
2015: Molecular Medicine
https://www.readbyqxmd.com/read/25773149/vitamin-d3-administration-to-ms-patients-leads-to-increased-serum-levels-of-latency-activated-peptide-lap-of-tgf-beta
#5
RANDOMIZED CONTROLLED TRIAL
Julia Åivo, Arno Hänninen, Jorma Ilonen, Merja Soilu-Hänninen
BACKGROUND: Deficiency of vitamin D is an environmental risk factor for MS. Vitamin D has immunomodulatory effects, including promotion of T-cell differentiation into T-regulatory cells, which produces regulatory cytokines including TGF-β. Increasing serum vitamin D levels have been associated with decreased disease activity in MS patients, but there are only few studies concerning the immunological effects of vitamin D supplementation in MS. In this study we investigated the effect of weekly supplementation of vitamin D3 or placebo on serum levels of multiple cytokines in patients with relapsing remitting MS...
March 15, 2015: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/25687497/schistosome-infection-derived-hepatic-stellate-cells-are-cellular-source-of-prostaglandin-d%C3%A2-role-in-tgf-%C3%AE-stimulated-vegf-production
#6
Ligia Almeida Paiva, Karen Almeida Coelho, Tatiana Luna-Gomes, Marcia Cury El-Cheikh, Radovan Borojevic, Sandra Aurora Perez, Patricia Torres Bozza, Christianne Bandeira-Melo
Hepatic Stellate Cells (HSCs) play a crucial role in pathogenesis of liver inflammation and fibrosis. During chronic liver injury, HSCs lose vitamin A and transform into myofibroblastic cells. In schistosomal granulomas, these activated HSCs are called GR-HSCs. Schistosomal-triggered hepatic fibrogenesis has TGF-β as the most potent fibrogenic stimulus, that also controls gene expression of the angiogenic molecule VEGF in HSCs. COX-dependent production of prostaglandins (PGs) also play role in angiogenic processes...
April 2015: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/25656438/muscle-and-bone-impairment-in-children-with-marfan-syndrome-correlation-with-age-and-fbn1-genotype
#7
Elsa Haine, Jean-Pierre Salles, Philippe Khau Van Kien, Françoise Conte-Auriol, Isabelle Gennero, Aurélie Plancke, Sophie Julia, Yves Dulac, Maithé Tauber, Thomas Edouard
Marfan syndrome (MFS) is a rare connective tissue disorder caused by mutation in the gene encoding the extracellular matrix protein fibrillin-1 (FBN1), leading to transforming growth factor-beta (TGF-β) signaling dysregulation. Although decreased axial and peripheral bone mineral density (BMD) has been reported in adults with MFS, data about the evolution of bone mass during childhood and adolescence are limited. The aim of the present study was to evaluate bone and muscle characteristics in children, adolescents, and young adults with MFS...
August 2015: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/25644204/reprint-of-vitamin-d-deficiency-in-pregnant-women-impairs-regulatory-t-cell-function
#8
A Vijayendra Chary, R Hemalatha, M Seshacharyulu, M Vasudeva Murali, D Jayaprakash, B Dinesh Kumar
Regulatory T cells and IgE receptors (CD23 and CD21) on B cells were assessed in vitamin D deficient pregnant women. For this, 153 pregnant women were recruited from a government hospital and were categorized into three groups based on 25-hydroxyvitamin D3 (25(OH)D3) status. Regulatory T cell population (Treg cells) and CD23/CD21 expression on B cells were quantified by FACS ARIA II in maternal blood at third trimester; and the same parameters were evaluated in cord blood soon after delivery. In addition, TGF β and IL-10 were quantified in maternal and cord blood by using Milliplex kits...
April 2015: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/25458314/phenylbutyrate-induces-cathelicidin-expression-via-the-vitamin-d-receptor-linkage-to-inflammatory-and-growth-factor-cytokines-pathways
#9
Nikhil N Kulkarni, Zhiqian Yi, Carolin Huehnken, Birgitta Agerberth, Gudmundur H Gudmundsson
Antimicrobial peptides (AMPs) constitute an indispensable arm of innate immunity against infectious microbes in humans. Induction of endogenous AMPs may become an alternative therapy against infections. Our previous studies have demonstrated phenylbutyrate (PBA) as a novel inducer of the AMPs cathelicidin (encoded by the CAMP gene) and human beta-defensin-1 in the human bronchial epithelial cell line VA10. In this work, we have continued by studying molecular mechanisms of PBA mediated induction of LL-37 expression and associated pathways in the human bronchial epithelial cell line VA10...
February 2015: Molecular Immunology
https://www.readbyqxmd.com/read/25448751/vitamin-d-deficiency-in-pregnant-women-impairs-regulatory-t-cell-function
#10
A Vijayendra Chary, R Hemalatha, M Seshacharyulu, M Vasudeva Murali, D Jayaprakash, B Dinesh Kumar
Regulatory T cells and IgE receptors (CD23 and CD21) on B cells were assessed in vitamin D deficient pregnant women. For this, 153 pregnant women were recruited from a government hospital and were categorized into three groups based on 25-hydroxyvitamin D3 (25(OH)D3) status. Regulatory T cell population (Treg cells) and CD23/CD21 expression on B cells were quantified by FACS ARIA II in maternal blood at third trimester; and the same parameters were evaluated in cord blood soon after delivery. In addition, TGF β and IL-10 were quantified in maternal and cord blood by using Milliplex kits...
March 2015: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/25422352/mechanisms-in-endocrinology-thyroid-and-polycystic-ovary-syndrome
#11
REVIEW
Simona Gaberšček, Katja Zaletel, Verena Schwetz, Thomas Pieber, Barbara Obermayer-Pietsch, Elisabeth Lerchbaum
Thyroid disorders, especially Hashimoto's thyroiditis (HT), and polycystic ovary syndrome (PCOS) are closely associated, based on a number of studies showing a significantly higher prevalence of HT in women with PCOS than in controls. However, the mechanisms of this association are not as clear. Certainly, genetic susceptibility contributes an important part to the development of HT and PCOS. However, a common genetic background has not yet been established. Polymorphisms of the PCOS-related gene for fibrillin 3 (FBN3) could be involved in the pathogenesis of HT and PCOS...
January 2015: European Journal of Endocrinology
https://www.readbyqxmd.com/read/25222475/vitamin-d-deficiency-aggravates-chronic-kidney-disease-progression-after-ischemic-acute-kidney-injury
#12
Janaína Garcia Gonçalves, Ana Carolina de Bragança, Daniele Canale, Maria Heloisa Massola Shimizu, Talita Rojas Sanches, Rosa Maria Affonso Moysés, Lúcia Andrade, Antonio Carlos Seguro, Rildo Aparecido Volpini
BACKGROUND: Despite a significant improvement in the management of chronic kidney disease (CKD), its incidence and prevalence has been increasing over the years. Progressive renal fibrosis is present in CKD and involves the participation of several cytokines, including Transforming growth factor-β1 (TGF-β1). Besides cardiovascular diseases and infections, several studies show that Vitamin D status has been considered as a non-traditional risk factor for the progression of CKD. Given the importance of vitamin D in the maintenance of essential physiological functions, we studied the events involved in the chronic kidney disease progression in rats submitted to ischemia/reperfusion injury under vitamin D deficiency (VDD)...
2014: PloS One
https://www.readbyqxmd.com/read/25134788/vitamin-d-counteracts-fibrogenic-tgf-%C3%AE-signalling-in-human-hepatic-stellate-cells-both-receptor-dependently-and-independently
#13
Anja Beilfuss, Jan-Peter Sowa, Svenja Sydor, Mechthild Beste, Lars P Bechmann, Martin Schlattjan, Wing-Kin Syn, Inga Wedemeyer, Zoltan Mathé, Christoph Jochum, Guido Gerken, Robert K Gieseler, Ali Canbay
OBJECTIVE: Non-alcoholic fatty liver disease (NAFLD) is closely linked to obesity and constitutes part of the metabolic syndrome, which have been associated with low serum vitamin D (VD). Due to known crosstalk between VD and transforming growth factor (TGF)-β signalling, VD has been proposed as an antifibrotic treatment. DESIGN: We evaluated the association between VD, the vitamin D receptor (VDR) and liver fibrosis in primary human hepatic stellate cells (phHSC) and 106 morbidly obese patients with NAFLD...
May 2015: Gut
https://www.readbyqxmd.com/read/25107382/paricalcitol-protects-against-tgf-%C3%AE-1-induced-fibrotic-responses-in-hypoxia-and-stabilises-hif-%C3%AE-in-renal-epithelia
#14
Karen A Nolan, Eoin P Brennan, Carsten C Scholz, Cliodhna Cullen, Aidan Ryan, Cormac T Taylor, Catherine Godson
Epithelial injury and tubulointerstitial fibrosis (TIF) within a hypoxic microenvironment are associated with progressive loss of renal function in chronic kidney disease [CKD]. Transforming growth factor beta-1 (TGF-β1) is an important mediator of renal fibrosis. Growing evidence suggests that Vitamin D [1,25-(OH)2D] and its analogues may have a renoprotective effect in CKD. Here we examined the protective effect of the vitamin D analogue paricalcitol [PC; 19-nor-1α,3β,25-trihydroxy-9,10-secoergosta-5(Z),7(E) 22(E)-triene] on the responses of human renal epithelial cells to TGF-β1...
January 15, 2015: Experimental Cell Research
https://www.readbyqxmd.com/read/24958015/vitamin-d-improves-cognitive-function-and-modulates-th17-t-reg-cell-balance-after-hepatectomy-in-mice
#15
Ayong Tian, Hong Ma, Xuezhao Cao, Rongwei Zhang, Xiaolong Wang, Binyang Wu
It is known that surgery-induced tissue damage activates the peripheral immune system resulting in the release of inflammatory mediators and cognitive impairment in aged mice. Vitamin D has been shown to have immunomodulatory function, but the molecular basis for it has not been well understood. In this study, we mainly investigated the efficacy and mechanism of vitamin D against postoperative cognitive dysfunction (POCD). The treatment of C57BL mice with vitamin D significantly preserves postoperative cognitive function, markedly inhibits surgery-induced interleukin (IL)-17, IL-6, transforming growth factor beta (TGF-β), and retinoic acid-related orphan receptor (RORγt) production, and obviously induces IL-10 and forkhead box p3 (Foxp3) expression...
April 2015: Inflammation
https://www.readbyqxmd.com/read/24825850/vdr-activity-is-differentially-affected-by-hic-5-in-prostate-cancer-and-stromal-cells
#16
Joshua D Solomon, Marjet D Heitzer, Teresa T Liu, Jan H Beumer, Robert A Parise, Daniel P Normolle, Damien A Leach, Grant Buchanan, Donald B DeFranco
UNLABELLED: Patients with prostate cancer treated with androgen deprivation therapy (ADT) eventually develop castrate-resistant prostate cancer (CRPC). 1,25-Dihydroxyvitamin D3 (1,25D3/calcitriol) is a potential adjuvant therapy that confers antiproliferative and pro-differentiation effects in vitro, but has had mixed results in clinical trials. The impact of the tumor microenvironment on 1,25D3 therapy in patients with CRPC has not been assessed. Transforming growth factor β (TGFβ), which is associated with the development of tumorigenic "reactive stroma" in prostate cancer, induced vitamin D3 receptor (VDR) expression in the human WPMY-1 prostate stromal cell line...
August 2014: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/24821711/vdr-status-arbitrates-the-prometastatic-effects-of-tumor-associated-macrophages
#17
Yan Zhang, Quanjun Guo, Zhujun Zhang, Nan Bai, Ze Liu, Min Xiong, Yuquan Wei, Rong Xiang, Xiaoyue Tan
UNLABELLED: The relationship between tumor-associated macrophages (TAM) and epithelial-to-mesenchymal transition (EMT) during the initiation and progression of metastasis is still unclear. Here, a role for the vitamin D receptor (VDR) in metastasis was identified, as well as a role in the relationship between TAMs and EMT. First, the expression level of VDR was examined in clinical tissue from human patients with breast cancer or a mouse model of breast cancer with differential metastasis...
August 2014: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/24800655/reversal-of-fibrosis-by-tgf-%C3%AE-3-in-a-3d-in%C3%A2-vitro-model
#18
D Karamichos, A E K Hutcheon, J D Zieske
Corneal scarring following moderate to severe injury is inevitable. Despite significant advancements in the field, current treatments following these types of injuries are limited, and often, the visual recovery is poor. One of the problems and limitations is that corneal wound healing is a complex process, involving corneal cells, extracellular matrix components and growth factors. Therefore, further understanding is required, along with new treatments and techniques to reduce or prevent corneal scarring following injury...
July 2014: Experimental Eye Research
https://www.readbyqxmd.com/read/24673126/1%C3%AE-25-dihydroxyvitamin-d3-in-combination-with-transforming-growth-factor-%C3%AE-increases-the-frequency-of-foxp3%C3%A2-%C2%BA-regulatory-t-cells-through-preferential-expansion-and-usage-of-interleukin-2
#19
Emma S Chambers, Duangchan Suwannasaen, Elizabeth H Mann, Zoe Urry, David F Richards, Ganjana Lertmemongkolchai, Catherine M Hawrylowicz
A high prevalence of vitamin D insufficiency and deficiency exists worldwide, which is associated with an increased incidence and severity of a range of immune-mediated diseases. This has resulted in considerable interest in the immunodulatory functions of vitamin D. The active form of vitamin D, 1α,25-dihydroxyvitamin D3 [1,25(OH)2D3], has been shown to increase the frequency of Foxp3(+) CD4(+) T regulatory (Treg) cells when present at high concentrations or under strong T-cell stimulation in culture. Supporting evidence exists in vivo for a positive association between serum 25(OH)D and Foxp3(+) Treg cell numbers in humans...
September 2014: Immunology
https://www.readbyqxmd.com/read/24448349/vitamin-d-receptor-regulates-tgf-%C3%AE-signalling-in-systemic-sclerosis
#20
Pawel Zerr, Stefan Vollath, Katrin Palumbo-Zerr, Michal Tomcik, Jingang Huang, Alfiya Distler, Christian Beyer, Clara Dees, Kolja Gela, Oliver Distler, Georg Schett, Jörg H W Distler
BACKGROUND: Vitamin D receptor (VDR) is a member of the nuclear receptor superfamily. Its ligand, 1,25-(OH)2D, is a metabolically active hormone derived from vitamin D3. The levels of vitamin D3 are decreased in patients with systemic sclerosis (SSc). Here, we aimed to analyse the role of VDR signalling in fibrosis. METHODS: VDR expression was analysed in SSc skin, experimental fibrosis and human fibroblasts. VDR signalling was modulated by siRNA and with the selective agonist paricalcitol...
March 2015: Annals of the Rheumatic Diseases
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