نتایج جستجو برای: cyp27b1

تعداد نتایج: 360  

2012
Grant R. Campbell Stephen A. Spector

Toll-like receptors (TLR) are important in recognizing microbial pathogens and triggering host innate immune responses, including autophagy, and in the mediation of immune activation during human immunodeficiency virus type-1 (HIV) infection. We report here that TLR8 activation in human macrophages induces the expression of the human cathelicidin microbial peptide (CAMP), the vitamin D receptor...

2013
María Jesús Larriba

Initial clinical trials in cancer patients with vitamin D compounds have shown acceptable toxicity but low activity. A number of mechanisms responsible for resistance to their action in cancer cells have been recently reported. They include reduced intracellular availability of 1 ,25-dihydroxyvitamin D3 (1,25(OH)2D3), loss of vitamin D receptor (VDR) expression and deregulation of transcription...

2013
Yi-Ching Tung Tsan-Teng Ou Wen-Chan Tsai

A uremic patient developed hypercalcemia after tuberculosis infection, and his ionized calcium levels correlated with 1,25-dihydroxyvitamin D3 (1,25(OH)2D3) levels. We performed further studies to determine whether monocytes are alternative sites of 1,25(OH)2D3 conversion beyond renal tubular cells. Using an ex vivo bioassay, in this study, we found that 1- α hydroxylase (CYP27B1) activity in m...

2011
John L. Fowlkes R. Clay Bunn Gael E. Cockrell Lindsey M. Clark Elizabeth C. Wahl Charles K. Lumpkin Kathryn M. Thrailkill

Microalbuminuria in humans with Type 1 diabetes (T1D) is associated with increased urinary excretion of megalin, as well as many megalin ligands, including vitamin-D-binding protein (VDBP). We examined the DBA/2J diabetic mouse, nephropathy prone model, to determine if megalin and VDBP excretion coincide with the development of diabetic nephropathy. Megalin, VDBP, and 25-hydroxy-vitamin D (25-O...

2018
Michael Oster Christian Gerlinger Kaja Heide Franziska Just Luisa Borgelt Petra Wolf Christian Polley Brigitte Vollmar Eduard Muráni Siriluck Ponsuksili Klaus Wimmers

Dietary phosphorus frequently exceeds age-specific requirements and pig manure often contains high phosphorus load which causes environmental burden at regional scales. Therefore, feeding strategies towards improved phosphorus efficiency and reduced environmental phosphorus load have to be developed. A 5-week feeding trial was conducted: piglets received medium, lower (-25%), or higher (+25%) a...

2013
Antonio Alcina Maria Fedetz Óscar Fernández Albert Saiz Guillermo Izquierdo Miguel Lucas Laura Leyva Juan-Antonio García-León María del Mar Abad-Grau Iraide Alloza Alfredo Antigüedad María J Garcia-Barcina Koen Vandenbroeck Jezabel Varadé Belén de la Hera Rafael Arroyo Manuel Comabella Xavier Montalban Natalia Petit-Marty Arcadi Navarro David Otaegui Javier Olascoaga Yolanda Blanco Elena Urcelay Fuencisla Matesanz

BACKGROUND AND AIM Several studies have highlighted the association of the 12q13.3-12q14.1 region with coeliac disease, type 1 diabetes, rheumatoid arthritis and multiple sclerosis (MS); however, the causal variants underlying diseases are still unclear. The authors sought to identify the functional variant of this region associated with MS. METHODS Tag-single nucleotide polymorphism (SNP) an...

2009
Sarah K. Holt Erika M. Kwon Ulrike Peters Elaine A. Ostrander Janet L. Stanford

Vitamin D has antiproliferative, antiangiogenic, and apoptotic properties. There is some evidence supporting an association between vitamin D–related gene variants and prostate cancer risk. We report results from this population-based case-control study of genes encoding for the vitamin D receptor (VDR), the vitamin D activating enzyme 1-α-hydroxylase (CYP27B1), and deactivating enzyme 24-hydro...

Journal: :Journal of medicinal chemistry 2014
Salvatore Ferla Ahmed S Aboraia Andrea Brancale Christopher J Pepper Jinge Zhu Justin T Ochalek Hector F DeLuca Claire Simons

The synthesis of imidazole styrylbenzamide, tert-butyl styrylimidazole, and tert-butyl styrylsulfonate derivatives is described. Evaluation of binding affinity and inhibitory activity against CYP24A1 identified the imidazole styrylbenzamides as potent inhibitors of CYP24A1, having selectivity with respect to CYP27B1 comparable with or greater than that of the standard ketoconazole. Further eval...

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