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Vitamin d and cancer

Andrzej T Slominski, Michal A Zmijewski, Przemyslaw M Plonka, Jerzy P Szaflarski, Ralf Paus
The skin, a self-regulating protective barrier organ, is empowered with sensory and computing capabilities to counteract the environmental stressors to maintain/restore disrupted cutaneous homeostasis. These complex functions are coordinated by a cutaneous neuro-endocrine system that also communicates in a bidirectional fashion with the central nervous, endocrine and immune systems, all acting in concert to control body homeostasis. While ultraviolet energy (UV) has played an important role in the origin and evolution of life, UV absorption by the skin not only triggers mechanisms that defend skin integrity and regulate global homeostasis, but also induces skin pathology (e...
March 12, 2018: Endocrinology
Karen E Assmann, Moufidath Adjibade, Nitin Shivappa, James R Hébert, Michael D Wirth, Mathilde Touvier, Tasnime Akbaraly, Serge Hercberg, Pilar Galan, Chantal Julia, Emmanuelle Kesse-Guyot
Background: While low-grade chronic inflammation has been suggested as a major modulator of healthy aging (HA), no study has yet investigated the link between the inflammatory potential of the diet and multidimensional concepts of HA. Objective: We aimed to evaluate the association between the inflammatory potential of the diet at midlife, as measured by the Dietary Inflammatory Index (DII), and HA assessed 13 y later. Methods: We analyzed data from 2796 participants in the French Supplémentation en Vitamines et Minéraux Antioxydants (SU...
March 1, 2018: Journal of Nutrition
Katie M O'Brien, Dale P Sandler, Min Shi, Quaker E Harmon, Jack A Taylor, Clarice R Weinberg
Genetic factors likely influence individuals' concentrations of 25-hydroxyvitamin D [25(OH)D], a biomarker of vitamin D exposure previously linked to reduced risk of several chronic diseases. We conducted a genome-wide association study of serum 25(OH)D (assessed using liquid chromatography-tandem mass spectrometry) and 386,449 single nucleotide polymorphisms (SNPs). Our sample consisted of 1,829 participants randomly selected from the Sister Study, a cohort of women who had a sister with breast cancer but had never had breast cancer themselves...
2018: Frontiers in Genetics
Mohamed A Abu El Maaty, Fadi Almouhanna, Stefan Wölfl
Thioredoxin-interacting protein (TXNIP) was originally identified in HL-60 cells as the vitamin D₃ upregulated protein 1, and is now known to be involved in diverse cellular processes, such as maintenance of glucose homeostasis, redox balance, and apoptosis. Besides the initial characterization, little is known about if and how 1,25-dihydroxyvitamin D₃ [1,25(OH)₂D₃] induces TXNIP expression. We therefore screened multiple cancerous cell lines of different tissue origins, and observed induction, repression, or no change in TXNIP expression in response to 1,25(OH)₂D₃...
March 10, 2018: International Journal of Molecular Sciences
Elvira Larqué, Eva Morales, Rosaura Leis, José E Blanco-Carnero
BACKGROUND: To what extent does the circulating 25-hydroxyvitamin D (25[OH]D) concentration help to meet the physiological needs of humans is an ongoing subject of debate. Remaining unexposed to the sun to reduce melanoma cancer risk, current lifestyle with less out door activities, and increasing obesity rates, which in turn increases the storage of vitamin D in the adipose tissue, are presumably factors that contribute to the substantial upsurge in the prevalence of vitamin D deficiency in humans...
March 13, 2018: Annals of Nutrition & Metabolism
Joseph J Knapik, Sheryl A Bedno
Surveys indicated that 24% of military personnel are current cigarette smokers. Smoking is well known to increase the risk of cancers, cardiovascular and respiratory diseases, reproductive problems, and other medical maladies, but one of the little known effects of smoking is that on injuries. There is considerable evidence from a variety of sources that (1) smoking increases overall injury risk, (2) the greater the amount of smoking, the higher is the injury risk, and (3) smoking is an independent injury risk factor...
2018: Journal of Special Operations Medicine: a Peer Reviewed Journal for SOF Medical Professionals
Z Antunac Golubić, I Baršić, N Librenjak, S Pleština
BACKGROUND: Some studies have demonstrated that higher baseline plasma levels of 25-hydroxivitamin D [25(OH)D] are associated with a significant reduction in colorectal cancer (CRC) incidence. Patients with metastatic CRC (mCRC) tend to be vitamin D insufficient, but the effect of vitamin D on the survival of mCRC patients still remains uncertain. In this study, we evaluated the association between cholecalciferol 2,000 IU daily supplementation and survival of mCRC patients. METHODS: Seventy-two patients with mCRC were included...
March 13, 2018: Nutrition and Cancer
Sara Nejatinamini, Catherine Kubrak, Mirey Álvarez-Camacho, Vickie E Baracos, Sunita Ghosh, Wendy V Wismer, Vera C Mazurak
This study assessed dietary and micronutrient intakes of head and neck cancer (HNC) patients at key points in the disease trajectory and evaluated the contribution of oral nutritional supplements (ONS) to micronutrient intake. HNC patients (n = 114) completed a three-day dietary record and a tool to assess Nutrition Impact Scores (NIS) at baseline, post-treatment, and follow-up. Foods were classified into food categories. Micronutrient, protein, and energy intakes were compared to European Society for Parenteral and Enteral Nutrition guidelines for cancer patients...
March 13, 2018: Nutrition and Cancer
Esra Metin, Pelin Mutlu, Ufuk Gunduz
BACKGROUND: Although conventional chemotherapy is the most common method for cancer treatment, it has several side effects such as neuropathy, alopecia and cardiotoxicity. Since the drugs are given to body systemically, normal cells are also affected, just like cancer cells. However, in recent years, targeted drug delivery has been developed to overcome these drawbacks. OBJECTIVE: The aim in this study was targeted co-delivery of doxorubicin (Dox) which is an anticancer agent and D-α-Tocopherol polyethylene glycol 1000 succinate (vitamin E TPGS or simply TPGS) to breast cancer cells...
March 13, 2018: Anti-cancer Agents in Medicinal Chemistry
Derek S Tsang, Jennifer M Jones, Osai Samadi, Suhayb Shah, Nicholas Mitsakakis, Charles N Catton, William Jeon, Joshua To, Henriette Breunis, Shabbir M H Alibhai
PURPOSE: To evaluate the ability of a multimodal patient education initiative to improve adherence to healthy bone behaviors (HBBs) in men with prostate cancer receiving androgen deprivation therapy (ADT). METHODS: This was a pilot prospective, single-site, before-and-after clinical trial. The control arm (n = 51) received routine care. The intervention arm (n = 52) received multimodal HBB education which included a healthy bones prescription (BoneRx), focused face-to-face education with an oncology nurse or physician, and customized educational materials...
March 12, 2018: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
Mehir Un Nisa Iqbal, Syed Amir Maqbool, Taseer Ahmed Khan
Objective The aim of this study was to determine whether a novel polymorphism ( Tru9I) in the low penetrance vitamin D receptor (VDR) gene is associated with risk of premenopausal breast cancer (BC). Methods This case-control study included 228 patients with BC and 503 healthy women living in Pakistan who were analyzed for the VDR Tru9I (rs757343) single nucleotide polymorphism. BC cases were histopathologically confirmed, and all healthy controls were age-matched with patients (age range, 20-45 years). DNA was extracted, and the polymerase chain reaction and restriction fragment length polymorphism assays were performed...
January 1, 2018: Journal of International Medical Research
Katsuhiko Nakatsukasa, Hiroshi Koyama, Yoshimi Ouchi, Kouichi Sakaguchi, Yoshifumi Fujita, Takayuki Matsuda, Makoto Kato, Eiichi Konishi, Tetsuya Taguchi
Adjuvant aromatase inhibitor (AI) therapy, for hormone receptor-positive breast cancer, in postmenopausal women is associated with bone loss, leading to an increased risk of fractures. Denosumab, an antibody raised against the receptor activator of nuclear factor-κB ligand, has been proven to protect against AI-induced bone loss. Hence, we aimed to determine whether denosumab is effective in postmenopausal Japanese women with osteoporosis, treated with AI. We prospectively evaluated the bone mineral density (BMD) in the lumbar spine and the bilateral femoral neck in 102 postmenopausal women with clinical hormone receptor-positive breast cancer, stages I-IIIA, during a postoperative period of 12 months...
March 8, 2018: Journal of Bone and Mineral Metabolism
Wei Du, Jun Liu, Jianlong Zhou, Dan Ye, Yan OuYang, Qingnan Deng
Objective: The aim of this study was to investigate the role of obstructive sleep apnea (OSA) on all-cause mortality in patients with COPD. Methods: Data for this cross-sectional study were obtained from the National Health and Nutrition Examination Survey (NHANES) data (year 2005-2008). Eligible subjects were ≥20 years who had no COPD or OSA (n=9,237), had only OSA (n=366), had only COPD (n=695), and had OSA/COPD overlap syndrome (n=90). Univariate and multivariate analyses were used to evaluate factors associated with overall mortality...
2018: International Journal of Chronic Obstructive Pulmonary Disease
Joanna Zapolska, Katarzyna Witczak-Sawczuk, Maryna Krawczuk-Rybak, Małgorzata Sawicka-Żukowska, Joanna Smarkusz, Lucyna Ostrowska
Background: Properly balanced diet and exercise are an essential element of healthy living for children and adolescents. Particular attention should be paid to nutrition and physical activity among juniors after cancer treatment, which is one of the most important elements of the convalescence period. Objective: The aim of the study was a comparative analysis of diet, physical activity of healthy children and adolescents with patients after cancer treatment. Material and methods: The study involved 60 children and adolescents; 30 healthy juniors and 30 patients after treatment for cancer...
2018: Roczniki Państwowego Zakładu Higieny
Meixi Hao, Siyuan Hou, Lingjing Xue, Haoliang Yuan, Lulu Zhu, Cong Wang, Bin Wang, Chunming Tang, Can Zhang
Vitamin D3 receptor (VDR), belonging to the nuclear receptor superfamily, is a potential molecular target for anticancer drug discovery. In this study, a series of non-steroidal vitamin D analogs with phenyl-pyrrolyl pentane skeleton were synthesized with therapeutic potential for cancer treatment. Among them, 11b and 11g were identified as the most effective agents in reducing the viability of four cancer cell lines, particularly breast cancer cells, with IC50 values in the submicromolar concentration range...
March 8, 2018: Journal of Medicinal Chemistry
Harrison T Supnick, Rodica P Bunaciu, Andrew Yen
Differentiation therapy is used in cancer treatment. Epidemiologic studies showed that higher vitamin D levels are associated with reduced cancer risks. However, the therapeutic doses needed for differentiation are accompanied by hypercalcemia and intolerable pathological sequelae. In the present work we evaluated if RRD-251, a small-molecule, can enhance vitamin D3-induced differentiation of leukemic cells, in the hope of decreasing the needed vitamin D3-dose. We demonstrate that RRD-251 enhances vitamin D3-induced differentiation of leukemic cells, the enrichment of the c-Raf kinase in the nucleus, the binding of nuclear c-Raf to GSK-3, increased phosphorylation of GSK-3 ser 21/9 inhibitory sites, and the binding of GSK-3 to VDR, where GSK-3 inhibition is known to enhance transcriptional activation by VDR...
February 9, 2018: Oncotarget
Sanjeev Budhathoki, Akihisa Hidaka, Taiki Yamaji, Norie Sawada, Sachiko Tanaka-Mizuno, Aya Kuchiba, Hadrien Charvat, Atsushi Goto, Satoshi Kojima, Natsuki Sudo, Taichi Shimazu, Shizuka Sasazuki, Manami Inoue, Shoichiro Tsugane, Motoki Iwasaki
OBJECTIVE: To evaluate the association between pre-diagnostic circulating vitamin D concentration and the subsequent risk of overall and site specific cancer in a large cohort study. DESIGN: Nested case-cohort study within the Japan Public Health Center-based Prospective Study cohort. SETTING: Nine public health centre areas across Japan. PARTICIPANTS: 3301 incident cases of cancer and 4044 randomly selected subcohort participants...
March 7, 2018: BMJ: British Medical Journal
Vladislava T Djurasinović, Biljana S Mihaljević, Sandra B Šipetić Grujičić, Svetlana D Ignjatović, Goran Trajković, Milena R Todorović-Balint, Darko A Antić, Jelena S Bila, Boško M Andjelić, Jelena J Jeličić, Vojin M Vuković, Aleksandra M Nikolic, Stanislaw Klek
INTRODUCTION: Vitamin D has a role in cellular differentiation, proliferation, apoptosis, and angiogenesis and therefore is studied as a prognostic factor in cancer. The aim of our study was to assess the prevalence and significance of 25(OH)D deficiency in patients with lymphoid malignancies. METHODOLOGY: Between January 2014 and June 2016 at the Clinic for Hematology, Clinical Center of Serbia, Belgrade, the pretreatment serum level of 25(OH)D was determined in 133 (62 women/71 men, median age 58 (18-84) years) previously untreated patients with lymphoid malignancy using a chemiluminescent immunoassay...
March 6, 2018: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
Gabriel H Campolina-Silva, Bruna T Maria, Germán A B Mahecha, Cleida A Oliveira
BACKGROUND: Protective roles have been proposed for vitamin D in prostate cancer, which has the advanced age as the major risk factor. However, little is known about the expression of the vitamin D receptor (VDR) in the aging prostate and its association with the development of epithelial lesions that affect tissue homeostasis and may precede prostate tumors. METHODS: VDR expression in the prostatic complex of young adults to senile Wistar rats, a natural model to study age-related prostatic disorders, was evaluated by immunohistochemical, Western blotting, and image-assisted analyzes...
March 5, 2018: Prostate
R Dev, E Bruera, S Dalal
Cancer cachexia, weight loss with altered body composition, is a multifactorial syndrome propagated by symptoms that impair caloric intake, tumor byproducts, chronic inflammation, altered metabolism, and hormonal abnormalities. Cachexia is associated with reduced performance status, decreased tolerance to chemotherapy, and increased mortality in cancer patients. Insulin resistance as a consequence of tumor byproducts, chronic inflammation, and endocrine dysfunction has been associated with weight loss in cancer patients...
February 1, 2018: Annals of Oncology: Official Journal of the European Society for Medical Oncology
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