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Vit D

Z Merhi, E Buyuk, M J Cipolla
STUDY QUESTION: Does vitamin D attenuate the adverse effects of advanced glycation end products (AGEs) on steroidogenesis by human granulosa cells (GCs)? SUMMARY ANSWER: AGEs alter the expression of genes important in steroidogenesis while 1,25-dihydroxyvitamin D3 (vit D3) in vitro attenuates some of the actions of AGEs on steroidogenic gene expression, possibly by downregulating the expression of the pro-inflammatory cell membrane receptor for AGEs (RAGE). WHAT IS KNOWN ALREADY: Vitamin D attenuates the pro-inflammatory effects of AGEs in non-ovarian tissues...
March 12, 2018: Molecular Human Reproduction
Duck Soo Lim, Seung Kwang Lim, Min Kook Kim, Yong Chan Kwon, Tae Hyun Roh, Seul Min Choi, Sungpil Yoon, Hyung Sik Kim, Byung-Mu Lee
N-nitrosodiethanolamine (NDELA), a type of nitrosamine, is a possible human carcinogen that may form in cosmetic products. The aim of this study was to examine the formation and inhibition of NDELA through chemical reactions of secondary amines including mono-ethanolamine, di-ethanolamine (DEA), and tri-ethanolamine (TEA), and sodium nitrite (SN) under varying conditions such as pH, temperature, and fluorescent, ultraviolet (UV), and visual light (VIS) using liquid chromatography-mass spectroscopy. In a mixture of TEA and SN under acidic conditions pH 2, residual NDELA concentrations rose significantly under various storage conditions in the following order: 50°C > 40°C > UV (2 W/m2 ) > VIS (4000 lux) > fluorescent light > 25°C > 10°C...
February 23, 2018: Journal of Toxicology and Environmental Health. Part A
Zohra Ghlissi, Ahmed Hakim, Hela Mnif, Rim Kallel, Khaled Zeghal, Tahiya Boudawara, Zouheir Sahnoun
This study was carried out to evaluate spontaneous renal regeneration after stopping colistin methanesulfonate (CMS), which induces tubular damage, and the curative effect of Vitamin E (vit E) in rats. Animals were given the following: sterile saline (n = 6), 300,000 IU/kg/ day of CMS (n = 24), or 450,000 IU/kg/day of CMS (n = 24) for seven days. Each CMS group was subdivided into four subgroups (n = 6) and sacrificed as follows: (i) 12 h after stopping CMS, (ii) two weeks after stopping CMS, (iii) two weeks after stopping treatment with vit E, and (iv) two weeks after stopping treatment with olive oil...
January 2018: Saudi Journal of Kidney Diseases and Transplantation
S Adil Saribay, Ali Furkan Biten, Erdem Ozan Meral, Pinar Aldan, Vít Třebický, Karel Kleisner
Many sets of human facial photographs produced in Western cultures are available for scientific research. We report here on the development of a face database of Turkish undergraduate student targets. High-resolution standardized photographs were taken and supported by the following materials: (a) basic demographic and appearance-related information, (b) two types of landmark configurations (for Webmorph and geometric morphometrics (GM)), (c) facial width-to-height ratio (fWHR) measurement, (d) information on photography parameters, (e) perceptual norms provided by raters...
2018: PloS One
Sahar D Al-Shamari, Mohamed Aly ElSherif, Wahiba Hamid, Fahad Hanna
Background: Severe weight loss through means of bariatric surgery has been associated with loss of muscle mass due to lack of absorption of protein. The aim of this RCT is to investigate the effectiveness of protein supplementation in reducing the risk of developing protein malnutrition and muscle wasting in post-bariatric surgery patients in Qatar. Methods and analysis: The study was based at the Department of bariatric and metabolic surgery, Doha metropolitan and regional areas...
2018: Archives of Public Health, Archives Belges de Santé Publique
Baraa Alghalyini, Said El Shamieh, Ali Salami, Sophie Visvikis Siest, Hana M Fakhoury, Rajaa Fakhoury
Background Statin therapy used to lower cholesterol levels results in a substantial reduction in cardiovascular complications. Previous observations in different ethnic populations showed that rs2306283A>G, p.Asn130Asp and rs4149056T>C, p.Val174Ala in solute carrier organic anion transporter 1B1 (SLCO1B1) gene encoding the organic transporter protein may be responsible for statin uptake, thus explaining the majority of statin-associated symptoms. In addition to the genetic component, vitamin D (vit D) deficiency is common in Saudi Arabia and worldwide and may cause muscle dysfunction and ache...
February 8, 2018: Drug Metabolism and Personalized Therapy
C N Neeraja, Kalyani S Kulkarni, P Madhu Babu, D Sanjeeva Rao, K Surekha, V Ravindra Babu
Polished rice is poor source of micronutrients, however wide genotypic variability exists for zinc uptake and remobilization and zinc content in brown and polished grains in rice. Two landraces (Chittimutyalu and Kala Jeera Joha) and one popular improved variety (BPT 5204) were grown under zinc sufficient soil and their analyses showed high zinc in straw of improved variety, but high zinc in polished rice in landraces suggesting better translocation ability of zinc into the grain in landraces. Transcriptome analyses of the panicle tissue showed 41182 novel transcripts across three samples...
2018: PloS One
K Venugopal Menon, Huda Hamed Salim Al Harthy, Khalid Shafi Khalid Al Habsi, Hind Abdullah Hamed Al Ruzaiqi
Fragility hip fractures treated in a center in the Middle East were retrospectively studied for adequacy of osteoporosis management. Of the 318 patients treated, over 70% did not have a structured investigation and about 30% did not receive any therapeutic supplements. Our series showed a preventable 8.8% secondary fracture rate. PURPOSE: To study the adequacy of evaluation and treatment of osteoporosis after fragility fractures of the hip. The study also attempts to estimate the prevalence of secondary fractures after the original injury...
January 24, 2018: Archives of Osteoporosis
Yanlei Wang, Xiang Zhang, Wenqiang Zhang, Hao Dong, Wenjie Zhang, Jiajia Mao, Yong Dai
PURPOSE: The main aim of present study was to prepare the oxaliplatin (OXL)-loaded D-α-Tocopherol polyethylene glycol 1000 succinate (TPGS)-based lipid nanoparticles to enhance the anticancer effect in colon cancer cells. METHODS: The nanoparticles were nanosized and spherical shaped and exhibited controlled release kinetics. Flow cytometer and confocal laser scanning microscopy (CLSM) showed a remarkable uptake of nanoparticles in cancer cells in a time-dependent manner...
January 8, 2018: Pharmaceutical Research
Elena Janeva-Jovanovska, Dejan Dokic, Biserka Jovkovska-Kaeva, Gorica Breskovska, Zlatica Goseva, Jordan Minov, Dejan Trajkov, Magdalena Dimitrova-Genadieva, Beti Zafirovska-Ivanovska
BACKGROUND: Recently epidemiological studies showed that low vitamin D is linked to airway hyperresponsiveness, decreased lung function, poor asthma control, and steroid-resistant asthma. AIM: We investigated the relationship between Vitamin D, inflammation with circulating IL-33 and lung function in 30 patients with severe uncontrolled asthma. MATERIALS AND METHODS: The study included 30 patients with severe uncontrolled asthma. In each of them were measured serum levels of IL-33 and Vitamin D by the ELISA method...
December 15, 2017: Open Access Macedonian Journal of Medical Sciences
Xiaolei Yao, M A Ei-Samahy, Hua Yang, Xu Feng, Fengzhe Li, Fanxing Meng, Haitao Nie, Feng Wang
The cellular response to 1,25-dihydroxyvitamin D3 (Vit D3; biologically active form of Vitamin D) is complex and depends not only on Vitamin D receptor (VDR) expression but also on cellular uptake of circulating Vit D3 and the presence and activity of Vitamin D-metabolizing enzyme. This study evaluated the expression of VDR and Vitamin D-metabolizing enzymes in the ram reproductive tract at different developmental stages and in spermatozoa. Nearly all cell types in the testes and epithelial cells of the caput, corpus, and cauda expressed VDR, CYP27B1, and CYP24A1 proteins...
January 10, 2018: Animal Reproduction Science
Nashwa Eltablawy, Hend Ashour, Laila Ahmed Rashed, Wael Mostafa Hamza
OBJECTIVE: We hypothesised that vitamin D has a beneficial renal protective effect from diabetic nephropathy (DN). METHODS: Four rat groups were included: normal control (control), type 2 diabetes for eight weeks (DM), treated group with angiotensin receptor blocker losartan (DM + L), and vitamin D-treated group started from the onset of diabetes (DM + Vit D). RESULTS: In the both treated groups, we found a significant (p < ...
January 8, 2018: Archives of Physiology and Biochemistry
Manju Daroach, Tarun Narang, Uma N Saikia, Naresh Sachdeva, Muthu Sendhil Kumaran
BACKGROUND: Vitamin D (Vit.D) deficiency has been reported in alopecia areata (AA). Downregulation of Vitamin D receptor (VDR) on hair follicles is associated with reduced hair growth. OBJECTIVE: To correlate serum Vit.D levels with severity, pattern, and duration of AA, and density of VDR expression over hair follicles in AA patients. METHODS: Prospective study including 30 AA patients and 30 healthy controls. Clinical details and serum Vit...
February 2018: International Journal of Dermatology
Laura Llobet Vila, Josep Maria Manresa Domínguez, José Manuel Carmona Segado, Alícia Franzi Sisó, Rosa Vallès Balasch, Isabel Martínez Díaz
OBJECTIVES: 1-To know the preventive prescription (statin, antiplatelet drugs, bisphosphonates, calcium and vitamin D and Vit B12) of elderly patients previously identified as a CCD (with a complex chronic disease) and ACD (with advanced chronic disease and lifetime expectancy of less than 12 months) who died during 2015. 2-To assess the correct indication of Proton Pump Inhibitors (PPI) to determine potentially avoidable medication. DESIGN: Retrospective observational study...
December 5, 2017: Atencion Primaria
Latife Seyran Çelik, Yurdun Kuyucu, Ebru Dündar Yenilmez, Abdullah Tuli, Kenan Dağlıoğlu, Ufuk Özgü Mete
AIM: The aim of this study was to investigate the effects of vitamin D treatment on ovary in experimentally designed polycystic ovary syndrome of female rats using light and electron microscopic techniques. METHODS: Twenty-four female pre-pubertal rats were divided into control, DHEA and DHEA+Vit.D groups. In DHEA group, the PCOS rat model was developed by 6mg/kg/day dehydroepiandrosterone administration as subcutaneously injections. In DHEA+Vit.D group, 6 mg/kg/day DHEA and 120ng/100g/week 1,25(OH)2D3 was performed simultaneously...
January 2018: Ultrastructural Pathology
A Drori, D Rotnemer-Golinkin, S Avni, A Drori, O Danay, D Levanon, J Tam, L Zolotarev, Y Ilan
BACKGROUND: Hypovitaminosis D is associated with many features of the metabolic syndrome, including non-alcoholic fatty liver disease. Vitamin D-enriched mushrooms extracts exert a synergistic anti-inflammatory effect. The aim of the present study is to determine the immunomodulatory effect of oral administration of vitamin D-enriched mushrooms extracts on high-fat diet (HFD) animal model of non-alcoholic steatohepatitis (NASH). METHODS: C57BL/6 mice on HFD were orally administered with vitamin D supplement, Lentinula edodes (LE) mushrooms extract, or vitamin D-enriched mushrooms extract for 25 weeks...
November 28, 2017: BMC Gastroenterology
Parvin Babaei, Samaneh Ghorbani Shirkouhi, Rastegar Hosseini, Bahram Soltani Tehrani
Purpose: Here, we studied the beneficial effects of aerobic exercise on metabolic syndrome components, cognitive performance, brain derived neurotrophic factor (BDNF) and irisin in ovariectomized rats with different serum vitamin D (Vit D) status. Methods: Eighty female wistar rats were divided into 2 groups of sham operated (sham, n = 8), and ovariectomized (OVX, n = 72). Then OVX were divided into 9 groups of receiving combination of exercise protocol with low dose of Vit D (OVX + EXE + LD), high dose of Vit D (OVX + EXE + HD), Vit D deficiency (OVX + EXE - D), and (OVX + EXE + Veh)...
2017: Diabetology & Metabolic Syndrome
Rasoul Nasiri-Kalmarzi, Mohammad Abdi, Javad Hosseini, Erfan Babaei, Aram Mokarizadeh, Zakaria Vahabzadeh
BACKGROUND: Previous studies showed the role of vitamin D (Vit D) on the progression of chronic urticaria. To the best of our knowledge, there are no other results regarding the contribution of single nucleotide polymorphisms (SNPs) in the vitamin D receptor (VDR) and vitamin D binding protein (VDBP) genes in Chronic Urticaria (CU). AIM: In the present study, we investigated the Vit pathway and the association between VDR and VDBP gene polymorphisms and CU risk in Iranian population...
November 20, 2017: QJM: Monthly Journal of the Association of Physicians
Fabiane Rodrigues, Leidiane de Lucca, Walter S Neme, Thissiane de Lima Gonçalves
OBJECTIVES: This study aimed to evaluate the activity of delta-aminolevulinate dehydratase (δ-ALA-D) and oxidative stress biomarkers in pregnant women with gestational diabetes mellitus (GDM), in order to demonstrate the involvement of oxidative stress in this condition, which presents pathophysiology still undetermined. METHODS: δ-ALA-D activity, lipid peroxidation estimated as the levels of thiobarbituric acid reactive substances (TBARS), protein (P-SH) and non-protein thiol (NP-SH) content, catalase (CAT) activity and concentration of vitamin C (VIT C) in samples of pregnant women with GDM (n = 48) and in healthy pregnant women (n = 30), who constituted the control group...
November 17, 2017: Redox Report: Communications in Free Radical Research
Vincenzo DE Leo, Valentina Cappelli, Giuseppe Morgante, Alessandra DI Sabatino
La vit. D, o calcitriolo, è stata identificata inizialmente nei primi anni '20 ed ha un ruolo chiave nella regolazione del metabolismo osseo, nell'omeostasi del calcio e del fosforo e nel promuovere la mineralizzazione ossea. Le azioni della vit. D sono mediante tramite un recettore nucleare (VDR), che è espresso in numerosi organi come l'intestino, l'osso e il rene, ma anche nelle gonadi, nel seno, nel pancreas, nel sistema cardiovascolare, nel cervello (microglia) e nelle cellule del sistema immunitario...
November 10, 2017: Minerva Ginecologica
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