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vitamin c serum

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https://www.readbyqxmd.com/read/28337028/modifiable-risk-factors-of-maternal-postpartum-weight-retention-an-analysis-of-their-combined-impact-and-potential-opportunities-for-prevention
#1
J L Hollis, S R Crozier, H M Inskip, C Cooper, K M Godfrey, N C Harvey, C E Collins, S M Robinson
BACKGROUND/OBJECTIVES: Pregnancy triggers a physiological change in weight status. Postpartum weight retention in the childbearing years can substantially alter a woman's weight gain trajectory, with several potential contributing factors identified. Most research has relied on women's recall of pre-pregnancy weight during pregnancy or later, and not considered risk factors in combination. Using measured pre-pregnancy weight, this study aimed to examine the associations of maternal postpartum weight retention with parity, pre-pregnancy BMI, excessive gestational weight gain (GWG), maternal serum vitamin D concentration and dietary Glycaemic Index in early and late pregnancy and breastfeeding duration, including analysis of the combined impact of potentially modifiable risk factors...
March 24, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28331419/falsely-elevated-serum-vitamin-b12-levels-were-associated-with-the-severity-and-prognosis-of-chronic-viral-liver-disease
#2
Takaaki Sugihara, Masahiko Koda, Toshiaki Okamoto, Kenichi Miyoshi, Tomomitsu Matono, Kenji Oyama, Keiko Hosho, Jun-Ichi Okano, Hajime Isomoto, Yoshikazu Murawaki
BACKGROUND: Vitamin B12 is stored primarily in the liver, and highly elevated serum vitamin B12 levels occur in acute hepatitis and severe alcoholic liver disease. We evaluated the relationship between vitamin B12 levels and liver disease severity and long term prognosis in patients with chronic viral hepatitis and cirrhosis. METHODS: We enrolled 90 patients (57 men, 33 women) with chronic viral hepatitis and cirrhosis who admitted to our hospital as a prospective cohort study...
March 2017: Yonago Acta Medica
https://www.readbyqxmd.com/read/28323302/vegetable-and-fruit-juice-enhances-antioxidant-capacity-and-regulates-antioxidant-gene-expression-in-rat-liver-brain-and-colon
#3
Linhong Yuan, Jinmeng Liu, Jie Zhen, Yao Xu, Shuying Chen, Nicholas Van Halm-Lutterodt, Rong Xiao
To explore the effect of fruit and vegetable (FV) juice on biomarkers of oxidative damage and antioxidant gene expression in rats, 36 adult male Wistar rats were randomly divided into control, low FV juice dosage or high FV juice dosage treatment groups. The rats were given freshly extracted FV juice or the same volume of saline water daily for five weeks. After intervention, serum and tissues specimens were collected for biomarker and gene expression measurement. FV juice intervention increased total antioxidant capacity, glutathione, vitamin C, β-carotene, total polyphenols, flavonoids levels andglutathione peroxidaseenzyme activity in rat serum or tissues (p < 0...
March 20, 2017: Genetics and Molecular Biology
https://www.readbyqxmd.com/read/28315391/quality-assessment-of-vitamin-d-metabolite-assays-used-by-clinical-and-research-laboratories
#4
G D Carter, J Berry, R Durazo-Arvizu, E Gunter, G Jones, J Jones, H L J Makin, P Pattni, K W Phinney, C T Sempos, E L Williams
The Vitamin D External Quality Assessment Scheme (DEQAS) was launched in 1989 and monitors the performance of 25-hydroxyvitamin D (25-OHD) and 1,25- dihydroxyvitamin D (1,25(OH)2D) assays. In April 2015 a pilot scheme for 24,25-dihydroxyvitamin D (24,25(OH)2D) was introduced. The 25-OHD scheme is accuracy - based with target values assigned by the NIST Reference Measurement Procedure (RMP) for 25-OHD2 and 25-OHD3. A similar method is used to assign values for 3-epi-25-OHD. Five samples of human serum are distributed quarterly to over 1000 participants in 58 countries (April 2016) and clinical laboratories are expected to submit results within approximately 5 weeks...
March 14, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28299378/factors-associated-with-acute-phase-response-of-bisphosphonate-na%C3%A3-ve-or-pretreated-women-with-osteoporosis-receiving-an-intravenous-first-dose-of-zoledronate-or-ibandronate
#5
A W Popp, R Senn, I Curkovic, C Senn, H Buffat, P F Popp, K Lippuner
A first intravenous dose of bisphosphonates may be associated with an acute-phase response (APR). In bisphosphonate-naïve women with postmenopausal osteoporosis, the characteristics and frequency of APR may differ by compound. Prior bisphosphonate exposure was predictive of APR risk and severity. INTRODUCTION: Intravenous (IV) administration of bisphosphonates (BP), such as zoledronate (ZOL) and ibandronate (IBN), may be associated with an APR. The characteristics of APR may differ by compound...
March 15, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28294587/vitamin-d-levels-and-allergic-diseases-an-italian-cross-sectional-multicenter-survey
#6
C Lombardi, G Passalacqua
Background. During the two last decades, the interest in the role of Vitamin D (VD) in allergic disease has increased. Apart from the well-known actions of VD in bone metabolism, recent studies suggested its possible role as an immune-modulator in allergy. Objective. This study, conducted over the Italian territory, evaluated the possible correlations between VD serum level and diagnosed allergic diseases (rhinitis / asthma, food allergy, atopic dermatitis). Thus, VD was assessed in patients with physician-diagnosed allergic diseases...
March 2017: European Annals of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28293078/hepatitis-c-infected-patients-need-vitamin-d3-supplementation-in-the-era-of-direct-acting-antivirals-treatment
#7
EDITORIAL
Yasuteru Kondo
It has been reported that the serum level of vitamin D3 (VitD3) could affect the natural course of chronic hepatitis C (CH-C) and the response to treatment with pegylated interferon (Peg-IFN) and ribavirin. Although several mechanisms for the favorable effects of VitD3 supplementation were reported, the total effect of VitD3 supplementation remains unclear. Previously, we reported that supplementation with 1(OH)VitD3 could enhance the Th1 response inducing not only a favorable immune response for viral eradication but also HCC control...
February 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28288621/relationship-between-plasma-homocysteine-level-and-lipid-profiles-in-a-community-based-chinese-population
#8
Mohetaboer Momin, Jia Jia, Fangfang Fan, Jianping Li, Jingtao Dou, Dafang Chen, Yong Huo, Yan Zhang
BACKGROUND: Previous studies established a possible link among hyperhomocysteinemia (HHcy), dyslipidemia, and atherosclerosis. However, there was limited epidemic data concerning the relation between HHcy and lipid profiles, especially in community-based Chinese populations. This study aim to investigate the association of plasma homocysteine (Hcy) level with lipid profiles in a Chinese community-based population without lipid-lowering treatment. METHOD: A total of 4660 Chinese subjects from a cohort of the Shijingshan district in Beijing were included in the analysis...
March 14, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28287490/correlations-between-maternal-breast-milk-and-infant-vitamin-b12-concentrations-among-mother-infant-dyads-in-vancouver-canada-and-prey-veng-cambodia-an-exploratory-analysis
#9
Philip Chebaya, Crystal D Karakochuk, Kaitlin M March, Nancy N Chen, Rosemary A Stamm, Hou Kroeun, Prak Sophonneary, Mam Borath, Setareh Shahab-Ferdows, Daniela Hampel, Susan I Barr, Yvonne Lamers, Lisa A Houghton, Lindsay H Allen, Tim J Green, Kyly C Whitfield
Vitamin B12 plays an essential role in fetal and infant development. In regions where animal source food consumption is low and perinatal supplementation is uncommon, infants are at risk of vitamin B12 deficiency. In this secondary analysis, we measured total vitamin B12 concentrations in maternal and infant serum/plasma and breast milk among two samples of mother-infant dyads in Canada (assessed at 8 weeks post-partum) and in Cambodia (assessed between 3-27 weeks post-partum). Canadian mothers (n = 124) consumed a daily vitamin B12-containing multiple micronutrient supplement throughout pregnancy and lactation; Cambodian mothers (n = 69) were unsupplemented...
March 12, 2017: Nutrients
https://www.readbyqxmd.com/read/28287422/prevalence-of-vitamin-d-deficiency-and-its-associations-with-skin-color-in-pregnant-women-in-the-first-trimester-in-a-sample-from-switzerland
#10
Aline Richard, Sabine Rohrmann, Katharina C Quack Lötscher
Vitamin D deficiency in pregnancy has negative clinical consequences, such as associations with glucose intolerance, and has been shown to be distributed differently in certain ethnic groups. In some countries, a difference in the rate of vitamin D deficiency was detected in pregnant women depending on their skin color. We examined the prevalence of vitamin D deficiency (<20 ng/mL) in women in early pregnancy in Switzerland and evaluated the association of skin color with vitamin D deficiency. In a single-center cohort study, the validated Fitzpatrick scale and objective melanin index were used to determine skin color...
March 10, 2017: Nutrients
https://www.readbyqxmd.com/read/28284204/calcium-magnesium-imbalance-implicated-in-benign-prostatic-hyperplasia-and-restoration-by-a-phytotherapeutic-drug-croton-membranaceus-m%C3%A3-ll-arg
#11
George Awuku Asare, Robert A Ngala, Daniel Afriyie, Samuel Adjei, Adriana Nyarko, Yvonne Anang-Quartey, Bernice Asiedu, Derek Doku, Brodrick Y Amoah, Kennedy Bentum, Iddi Musah, Kensese Mossanda
BACKGROUND: Calcium (Ca)- magnesium (Mg) imbalance is implicated in prostate cancer. Ca/Mg ratio increases or decreases with proliferation or apoptosis, respectively. The study examined whether this Ca/Mg imbalance exists in BPH patients and the effect of a phytotherapeutic drug on the Ca/Mg ratio. METHODS: Thirty (30) BPH patients who used the ethanolic root extract of Croton membranaceus (60 mg/day) for 3 months were examined for serum Ca, Mg, phosphate, parathyroid hormone (PTH), vitamin D, prostate specific antigen (PSA) levels and renal function tests (RFT) before (BT) and after treatment (AT) alongside thirty (30) controls...
March 11, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28283863/clinical-and-metabolic-response-to-vitamin-d-supplementation-in-endometrial-hyperplasia-a-randomized-double-blind-placebo-controlled-trial
#12
Zohreh Tabassi, Sedigheh Bagheri, Mansooreh Samimi, Hamid Reza Gilasi, Fereshteh Bahmani, Maryam Chamani, Zatollah Asemi
There was inconsistent evidence showing that vitamin D intake may be associated with reduced cancer risk due to optimized metabolic profile and reduced oxidative stress. However, we are not aware of any study evaluating the effects of vitamin D supplementation on clinical response and metabolic status of patients with endometrial hyperplasia (EH). This research was done to evaluate the effects of vitamin D supplementation on clinical response and metabolic status of patients with EH. This randomized, double-blind, placebo-controlled trial was conducted among 60 women diagnosed with EH...
March 10, 2017: Hormones & Cancer
https://www.readbyqxmd.com/read/28279080/effectiveness-of-heparin-eye-drops-in-paraquat-induced-ocular-injury
#13
Liu Jian-Wei, Li Xiu-Yun, Deng Ai-Jun
PURPOSE: To evaluate the efficacy of heparin eye drops in the treatment of paraquat-induced ocular surface injury. DESIGN AND METHODS: In this retrospective study, we included 25 patients (31 eyes) with paraquat-induced ocular surface injury, who attended the Affiliated Hospital of Weifang Medical University between October 2008 and October 2013. The patients were split into two groups according to whether or not received heparin eye drops. The clinical data were compared between the two groups, i...
March 9, 2017: Cutaneous and Ocular Toxicology
https://www.readbyqxmd.com/read/28276596/impact-of-calcium-and-two-doses-of-vitamin-d-on-bone-metabolism-in-the-elderly-a-randomized-controlled-trial
#14
Maya Rahme, Sima-Lynn Sharara, Rafic Baddoura, Robert H Habib, Georges Halaby, Asma Arabi, Ravinder J Singh, Moustapha Kassem, Ziyad Mahfoud, Maha Hoteit, Rose T Daher, Darina Bassil, Karim El Ferkh, Ghada El-Hajj Fuleihan
The optimal dose of vitamin D to optimize bone metabolism in the elderly is unclear. We tested the hypothesis a vitamin D, at a dose higher than recommended by the Institute of Medicine (IOM), has a beneficial effect on bone remodeling and mass. In this double blind trial we randomized 257 overweight elderly subjects to receive 1000 mg of elemental calcium citrate/day, and the daily equivalent of 3,750IU/day or 600 IU/day of vitamin D3 for one year. The subjects' mean age was 71 ± 4 years, body mass index 30 ± 4 kg/m(2) , 55% were women, and 222 completed the 12-months follow-up...
March 9, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28261385/influence-of-vitamin-d-on-liver-fibrosis-in-chronic-hepatitis-c-a-systematic-review-and-meta-analysis-of-the-pooled-clinical-trials-data
#15
Alia S Dadabhai, Behnam Saberi, Katie Lobner, Russell T Shinohara, Gerard E Mullin
AIM: To investigate the relationship between vitamin D and liver fibrosis in hepatitis C-monoinfected or hepatitis C virus (HCV)-human immunodeficiency virus (HIV) co-infected patients. METHODS: Pertinent studies were located by a library literature search in PubMed/Embase/Cochrane/Scopus/LILACS by two individual reviewers. Inclusion criteria: (1) studies with patients with HCV or co-infected HCV/HIV; (2) studies with patients ≥ 18 years old; (3) studies that evaluated liver fibrosis stage, only based on liver biopsy; and (4) studies that reported serum or plasma 25(OH)D levels...
February 18, 2017: World Journal of Hepatology
https://www.readbyqxmd.com/read/28259644/association-of-serum-25-hydroxyvitamin-d3-with-adipokines-and-inflammatory-marker-in-persons-with-prediabetes-mellitus
#16
Meilin Zhang, Yuxia Gao, Liqiang Tian, Li Zheng, Xuan Wang, Weiqiao Liu, Yuwen Zhang, Guowei Huang
BACKGROUND: The association of vitamin D status and inflammation prediabetes mellitus (PreDM) individuals has not been investigated. We investigated the association of serum 25-hydroxyvitamin D3 (25(OH) D3) with adipokines and inflammatory markers in persons with PreDM. METHODS: In this cross-sectional study, we stratified 418 nondiabetic subjects as having PreDM or normal fasting glucose (NFG), and divided PreDM or NFG subjects into vitamin D sufficient, vitamin D insufficient and vitamin D deficient subgroups...
March 1, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28259214/vitamin-d-deficiency-in-adult-sickle-cell-patients
#17
Peter C Boettger, Charles L Knupp, Darla K Liles, Kaitlyn Walker
INTRODUCTION: Vitamin D levels in adult black Americans with sickle cell disease (SCD) are comparatively lower than those found in the general population of black Americans. The objectives of this study were to examine the prevalence of Vitamin D deficiency (VDD) in adults with various subtypes of sickle cell disease and identify risk factors for vitamin D deficiency. METHODS: In a retrospective study serum Vitamin D25(OH)D and/or VitaminD1,25(OH)2D levels were obtained in 120 subjects with sickle cell disease...
April 2017: Journal of the National Medical Association
https://www.readbyqxmd.com/read/28252168/interactions-among-methylenetetrahydrofolate-reductase-mthfr-and-cystathionine-%C3%AE-synthase-cbs-polymorphisms-a-cross-sectional-study-multiple-heterozygosis-as-a-risk-factor-for-higher-homocysteine-levels-and-vaso-occlusive-episodes
#18
F M Amaral, A L Miranda-Vilela, G S Lordelo, I F Ribeiro, M B Daldegan, C K Grisolia
High plasma homocysteine (Hcy) ​​levels may be responsible for vaso-occlusive episodes and may have acquired and/or genetic causes. This cross-sectional study aimed to investigate the role of methylenetetrahydrofolate reductase (MTHFR; C677T; A1298C) and cystathionine-β-synthase (CBS; T833C/844ins68, G919A) polymorphisms in serum levels of folic acid, vitamin B12 and Hcy, and to verify a possible association between these polymorphisms and the clinical variability. Blood samples of Brazilian patients with a diagnosis of thrombosis were submitted to genotyping by PCR-based methods and serum dosages of folic acid, vitamin B12 and Hcy...
February 23, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28249598/the-prognostic-utility-of-the-transcription-factor-srf-in-docetaxel-resistant-prostate-cancer-in-vitro-discovery-and-in-vivo-validation
#19
D J Lundon, A Boland, M Prencipe, G Hurley, A O'Neill, E Kay, S T Aherne, P Doolan, S F Madden, M Clynes, C Morrissey, J M Fitzpatrick, R W Watson
BACKGROUND: Docetaxel based therapy is one of the first line chemotherapeutic agents for the treatment of metastatic castrate-resistant prostate cancer. However, one of the major obstacles in the treatment of these patients is docetaxel-resistance. Defining the mechanisms of resistance so as to inform subsequent treatment options and combinations represents a challenge for clinicians and scientists. Previous work by our group has shown complex changes in pro and anti-apoptotic proteins in the development of resistance to docetaxel...
March 1, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28246885/biochemical-and-dietary-factors-of-uric-acid-stone-formation
#20
Alberto Trinchieri, Emanuele Montanari
The aim of this study was to compare the clinical characteristics of "pure" uric acid renal stone formers (UA-RSFs) with that of mixed uric acid/calcium oxalate stone formers (UC-RSFs) and to identify which urinary and dietary risk factors predispose to their formation. A total of 136 UA-RSFs and 115 UC-RSFs were extracted from our database of renal stone formers. A control group of 60 subjects without history of renal stones was considered for comparison. Data from serum chemistries, 24-h urine collections and 24-h dietary recalls were considered...
February 28, 2017: Urolithiasis
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