نتایج جستجو برای: cyp27b1

تعداد نتایج: 360  

2011
Serap Turan Burcu Topcu Ibrahim Gökçe Tülay Güran Zeynep Atay Anjumanara Omar Teoman Akçay Abdullah Bereket

OBJECTIVE Serum alkaline phosphatase (ALP) levels show great variation with age and sex in children and adolescents. Additionally, different buffers used even in the same method cause variable results. This detail is not usually taken into account in the evaluation. We aimed to study pediatric age- and sex-specific reference ranges for ALP by colorimetric assay using p-nitrophenyl phosphate as ...

Journal: :American journal of physiology. Cell physiology 2011
Andrzej T Slominski Tae-Kang Kim Zorica Janjetovic Robert C Tuckey Radoslaw Bieniek Junming Yue Wei Li Jianjun Chen Minh N Nguyen Edith K Y Tang Duane Miller Tai C Chen Michael Holick

20-hydroxyvitamin D(2) [20(OH)D(2)] inhibits DNA synthesis in epidermal keratinocytes, melanocytes, and melanoma cells in a dose- and time-dependent manner. This inhibition is dependent on cell type, with keratinocytes and melanoma cells being more sensitive than normal melanocytes. The antiproliferative activity of 20(OH)D(2) is similar to that of 1,25(OH)(2)D(3) and of newly synthesized 1,20(...

2012
Rene F. Chun Bradford E. Peercy John S. Adams Martin Hewison

Vitamin D binding protein (DBP) plays a key role in the bioavailability of active 1,25-dihydroxyvitamin D (1,25(OH)(2)D) and its precursor 25-hydroxyvitamin D (25OHD), but accurate analysis of DBP-bound and free 25OHD and 1,25(OH)(2)D is difficult. To address this, two new mathematical models were developed to estimate: 1) serum levels of free 25OHD/1,25(OH)(2)D based on DBP concentration and g...

2016
Tao Jiang Lizhuo Li Ying Wang Chuntao Zhao Jundong Yang Dexuan Ma Yanlei Guan Dan Zhao Yijun Bao Yunjie Wang Jingyun Yang

Multiple sclerosis (MS) is the most frequent nontraumatic disabling neurological disease among young adults. Previous studies have examined the association of rs703842 in CYP27B1 with MS susceptibility, with inconsistent results reported.The objective of this study is to conduct a systematic literature search and perform meta-analyses to examine whether rs703842 is associated with MS risk.We se...

2017
Kessarin Thanapirom Sirinporn Suksawatamnuay Wattana Sukeepaisarnjaroen Pisit Tangkijvanich Sombat Treeprasertsuk Panarat Thaimai Rujipat Wasitthankasem Yong Poovorawan Piyawat Komolmit

BACKGROUND Patients with chronic hepatitis C (HCV) infection have high prevalence of vitamin D deficiency. Genome-wide association study data has showed that several genetic variants within vitamin D cascade affect vitamin D function. This study aimed to determine whether genetic polymorphisms of genes in the vitamin D pathway are associated with treatment responses to pegylated interferon (PEG...

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