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Vitamine deficiency

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https://www.readbyqxmd.com/read/29161417/bolus-weekly-vitamin-d3-supplementation-impacts-gut-and-airway-microbiota-in-adults-with-cystic-fibrosis-a-double-blind-randomized-placebo-controlled-clinical-trial
#1
Mansi Kanhere, Jiabei He, Benoit Chassaing, Thomas R Ziegler, Jessica A Alvarez, Elizabeth A Ivie, Li Hao, John Hanfelt, Andrew T Gewirtz, Vin Tangpricha
Background: Disruption of gut microbiota may exacerbate severity of cystic fibrosis (CF). Vitamin D deficiency is a common co-morbidity in patients with CF that may influence composition of the gut microbiota. Objectives: Compare microbiota of vitamin D sufficient and insufficient CF patients, and assess impact of a weekly high-dose vitamin D3 bolus regimen on gut and airway microbiome in adults with CF and vitamin D insufficiency (25(OH)D <30 ng/mL). Design: Forty-one subjects with CF were classified into two groups - vitamin D insufficient (n=23) and vitamin D sufficient (n=18)...
November 16, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29160835/vitamin-d-and-neurological-diseases-an-endocrine-view
#2
REVIEW
Carolina Di Somma, Elisabetta Scarano, Luigi Barrea, Volha V Zhukouskaya, Silvia Savastano, Chiara Mele, Massimo Scacchi, Gianluca Aimaretti, Annamaria Colao, Paolo Marzullo
Vitamin D system comprises hormone precursors, active metabolites, carriers, enzymes, and receptors involved in genomic and non-genomic effects. In addition to classical bone-related effects, this system has also been shown to activate multiple molecular mediators and elicit many physiological functions. In vitro and in vivo studies have, in fact, increasingly focused on the "non-calcemic" actions of vitamin D, which are associated with the maintenance of glucose homeostasis, cardiovascular morbidity, autoimmunity, inflammation, and cancer...
November 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29160809/evaluation-of-dietary-intakes-and-supplement-use-in-paralympic-athletes
#3
Robyn F Madden, Jane Shearer, Jill A Parnell
Dietary intakes and supplement use in Paralympic athletes remains largely unexplored, and specialized recommendations are lacking. The aim of this study was to evaluate nutrient intakes and supplement use in high-performance athletes with physical disabilities using three-day food records and a validated dietary supplement use questionnaire. A secondary aim examined gender differences in nutrient and supplement intakes. Male (n = 18) and female (n = 22) athletes were recruited from nine Paralympic sports through sporting organizations, coaches, and social media...
November 21, 2017: Nutrients
https://www.readbyqxmd.com/read/29160302/role-of-cyp24a1-vdr-and-gc-gene-polymorphisms-on-deferasirox-pharmacokinetics-and-clinical-outcomes
#4
S Allegra, J Cusato, S De Francia, A Arduino, F Longo, E Pirro, D Massano, A De Nicolò, A Piga, A D'Avolio
β-Thalassemia patients develop deficiency in vitamin D absorption and liver hydroxylation, resulting in extremely low calcitriol levels. We explored the role of single-nucleotide polymorphisms (SNPs) involved in vitamin D metabolism, transport and activity on deferasirox pharmacokinetics and outcomes (effectiveness trough levels (Ctrough) and the area under the curve (AUC) cutoffs of 20 μg ml(-1) and 360 μg ml(-1) h(-1), respectively; nonresponse AUC limit of 250 μg ml(-1) h(-1)). Ninety-nine β-thalassemic patients were enrolled...
November 21, 2017: Pharmacogenomics Journal
https://www.readbyqxmd.com/read/29159972/vitamin-b12-deficiency-and-impaired-expression-of-amnionless-during-aging
#5
Alice Pannérec, Eugenia Migliavacca, Antonio De Castro, Joris Michaud, Sonia Karaz, Laurence Goulet, Serge Rezzi, Tze Pin Ng, Nabil Bosco, Anis Larbi, Jerome N Feige
BACKGROUND: Physical frailty and loss of mobility in elderly individuals lead to reduced independence, quality of life, and increased mortality. Vitamin B12 deficiency has been linked to several age-related chronic diseases, including in the musculo-skeletal system, where vitamin B12 deficiency is generally believed to be linked to poor nutritional intake. In the present study, we asked whether aging and frailty associate with altered vitamin B12 homeostasis in humans and investigated the underlying molecular mechanisms using preclinical models...
November 21, 2017: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/29159927/hormonal-contraceptive-use-and-vitamin-a-deficiency-among-women-in-tanzania
#6
Zelalem T Haile, Asli K Teweldeberhan, Bhakti Chavan, John Francescon
OBJECTIVE: To examine the association between hormonal contraceptive use and vitamin A deficiency among women in Tanzania. METHODS: Secondary analysis of data from 8231 women who participated in the 2010 Tanzania Demographic and Health Survey. Both descriptive and inferential statistical analyses were performed. RESULTS: Overall, 1291 (weight percentage 17.8%) women reported a history of hormonal contraceptive use. The weighted prevalence of vitamin A deficiency was 36...
November 21, 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/29159790/vitamin-d-supplementation-in-pregnancy-a-survey-of-compliance-with-recommendations
#7
C M Windrim, D A Crosby, K Mitchell, C Brophy, R Mahony, M Higgins
BACKGROUND: Vitamin D deficiency in pregnancy has important maternal and fetal implications, with increased risk of developing gestational diabetes, preeclampsia, preterm birth and small for gestational age birthweight. It is recommended that every pregnant woman should take 5 μg (200 IU) of vitamin D per day during pregnancy and lactation. AIMS: This study aimed to determine the prevalence of women taking vitamin D supplementation and to identify the reasons for patients not taking supplementation within women attending an antenatal clinic in Dublin...
November 20, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/29157558/cutaneous-hyperpigmentation-in-vitamine-b12-deficiency
#8
A García-Villa, C Cabañuz
No abstract text is available yet for this article.
November 17, 2017: Revista Clínica Española
https://www.readbyqxmd.com/read/29156926/-oral-feeding-and-nutritional-improvement-in-hospitals-and-residential-care-homes-industry-innovations
#9
Rosa M Ortega, Ana Isabel Jiménez Ortega, José Miguel Perea Sánchez, Esther Cuadrado Soto, Rosa M Martínez García, Ana M López Sobaler
OBJECTIVES: Inpatient and institutionalized elderly patients are population groups vulnerable from the nutritional point of view because oftheir greater risk of deficiencies and because in them the effects of imbalances are more serious than in other groups. Analyzing the possible usefulness of industry innovations offering solutions in the oral feeding of these population groups constitutes the objective of the present work. METHODS: Bibliographic search related to the topic...
October 15, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/29156559/tocotrienols-a-family-of-molecules-with-specific-biological-activities
#10
REVIEW
Raffaella Comitato, Roberto Ambra, Fabio Virgili
Vitamin E is a generic term frequently used to group together eight different molecules, namely: α-, β-, γ- and δ-tocopherol and the corresponding tocotrienols. The term tocopherol and eventually Vitamin E and its related activity was originally based on the capacity of countering foetal re-absorption in deficient rodents or the development of encephalomalacia in chickens. In humans, Vitamin E activity is generally considered to be solely related to the antioxidant properties of the tocolic chemical structure...
November 18, 2017: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/29156273/contribution-of-sun-exposure-to-the-vitamin-d-dose-received-by-various-groups-of-the-spanish-population
#11
Maria-Antonia Serrano
Although the harmful effects of excessive exposure to solar ultraviolet (UV) radiation are well known, the recommended dose of UV radiation is beneficial for the synthesis of vitamin D by the skin, in addition to being useful in the treatment of various illnesses and mental problems. Numerous studies have shown that vitamin D performs important functions in the human organism, such as absorbing calcium and phosphorous and contributing to the immune system, among others. Several studies have found that a high percentage of various groups of the Spanish population suffer from vitamin D deficiency, and since very few natural foods contain vitamin D, it was considered important to determine whether groups such as schoolchildren, outdoor workers and athletes, receive enough solar radiation to produce adequate levels of vitamin D in their daily activities...
November 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29155496/insulin-resistance-in-chronic-kidney-disease
#12
REVIEW
Hong Xu, Juan J Carrero
This review provides an overview of insulin resistance (IR) in patients with chronic kidney disease (CKD). IR is a pathological state in which target tissues fail to respond normally to insulin. IR is understood as a consequence of CKD and its prevalence rises particularly in advanced CKD stages. Mechanisms leading to IR are complex and multifactorial, involving post-receptor signaling defects, unhealthy lifestyles, metabolic acidosis, inflammation, oxidative stress, vitamin D deficiency, anemia, and uremic toxicity, as shown by human and experimental studies over the last 30 years...
December 2017: Nephrology
https://www.readbyqxmd.com/read/29154507/relationship-between-selected-micronutrient-deficiencies-and-oxidative-stress-biomarkers-in-diabetes-mellitus-patients-with-foot-ulcers-in-ibadan-nigeria
#13
Elizabeth Bosede Bolajoko, Olubayo Michael Akınosun, John Anetor, Kensese Sontin Mossanda
Background/aim: Micronutrients are indispensable in the prevention of diseases and maintenance of good health. Their deficiencies have been implicated in several diseases associated with oxidative stress (OS). This study aimed at investigating the levels of some vitamins and minerals in association with OS markers in diabetic foot ulcer (DFU) patients in Ibadan, Oyo State, Nigeria. Materials and methods: Seventy DFU patients and 50 apparently healthy volunteers (controls) were recruited for the study. Blood samples of 10 mL were collected after a 10-h overnight fast from each participant after obtaining their consent...
August 23, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29153269/vitamin-d-pathway-gene-polymorphisms-influenced-vitamin-d-level-among-pregnant-women
#14
Bule Shao, Shuying Jiang, Xiamusiye Muyiduli, Shuojia Wang, Minjia Mo, Minchao Li, Zhaopin Wang, Yunxian Yu
AIMS: To explore the relationship between vitamin D pathway genes, gene-environment interactions and vitamin D level among southeast Chinese pregnant women. METHODS: 759 participants from Zhoushan Pregnant Women Cohort (ZPWC) study, were enrolled from August 2011 to April 2014 in China. Plasma 25(OH)D levels and genetic variants in vitamin D pathway (NADSYN1/DHCR7, GC, CYP3A4, CYP2R1, CYP27A1, CYP27B1, VDR, CYP24A1, and LRP2) were measured using the blood sample collected at the first trimester...
November 7, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/29153154/a-100-year-review-from-ascorbic-acid-to-zinc-mineral-and-vitamin-nutrition-of-dairy-cows
#15
W P Weiss
Mineral and vitamin nutrition of dairy cows was studied before the first volume of the Journal of Dairy Science was published and is still actively researched today. The initial studies on mineral nutrition of dairy cows were simple balance experiments (although the methods available at the time for measuring minerals were anything but simple). Output of Ca and P in feces, urine, and milk was subtracted from intake of Ca and P, and if values were negative it was often assumed that cows were lacking in the particular mineral...
December 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29152675/a-randomized-double-blind-placebo-controlled-trial-of-vitamin-d-supplementation-in-juvenile-onset-systemic-lupus-erythematosus-positive-effect-on-trabecular-microarchitecture-using-hr-pqct
#16
G L Lima, J A Paupitz, N E Aikawa, J C Alvarenga, R M Rodrigues Pereira
In this randomized double-blind placebo-controlled 24-week trial, cholecalciferol supplementation at 50,000 IU/week effectively improved bone microarchitecture parameters in juvenile-onset systemic lupus erythematosus (JoSLE) patients, as assessed by high-resolution peripheral quantitative computed tomography (HR-pQCT) at tibia site. An increase in the trabecular number and a decrease in the trabecular separation were observed, suggesting that vitamin D supplementation may be recommended for JoSLE patients with its deficiency...
November 19, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/29152237/analysis-of-recipes-of-home-prepared-diets-for-dogs-and-cats-published-in-portuguese
#17
Vivian Pedrinelli, Márcia de O S Gomes, Aulus C Carciofi
The present study evaluated recipes of home-prepared diets for dogs and cats published in Portuguese. A total of 106 diets were evaluated: eighty for dogs, twenty-four for cats and two intended for both species. A commercial software package was used to analyse the diets, and an ingredient chemical composition database was built based on the Brazilian Tables of Food Composition and United States Department of Agriculture Nutrient Database. The estimated chemical composition of each recipe was compared with the Nutritional Guidelines for Complete and Complementary Pet Food for Cats and Dogs (Fédération Européenne de L'industrie des Aliments Pour Animaux Familiers; FEDIAF, 2014) recommendations for maintenance (as units/MJ)...
2017: Journal of Nutritional Science
https://www.readbyqxmd.com/read/29150289/the-cause-of-multiple-sclerosis-is-autoimmune-attack-of-adenosyltransferase-thereby-limiting-adenosylcobalamin-production
#18
J L Boucher
The pathogenesis of multiple sclerosis (MS) begins with an infection by a bacterium from the class of bacteria that produce and utilize adenosylcobalamin (AdoCbl) and possess an adenosyl transferase enzyme (ATR); these bacteria are the exogenous antigens that cause MS. Human ATR is homologous to bacterial ATR and B cells produce anti-ATR antibodies as an autoimmune response thereby reducing the concentration of ATR and thus limiting production of AdoCbl, one of the two bioactive forms of vitamin B12. The next step in MS pathogenesis is a period of subclinical AdoCbl deficiency over a period of many years resulting in production of odd-carbon-number fatty acids that are incorporated into myelin rendering it antigenic...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29150285/a-review-of-prevalence-studies-of-autism-spectrum-disorder-by-latitude-and-solar-irradiance-impact
#19
Somayya Syed, Kathleen A Moore, Evita March
Autism Spectrum Disorder (ASD) is a lifelong disability with no known cause or cure. Among the suggested etiologies, is Cannell's hypothesis of a deficiency in Vitamin D the main natural source of which is Solar Ultraviolet-B (UVB) radiation. The aim in this paper is to build on this hypothesis and explore the relationship of solar irradiance of which UVB is a component, by latitude with the prevalence rates of ASD. Twenty-five reports published between 2011 and 2016 using comparable diagnostic criteria were reviewed...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29150169/vitamin-d-and-walking-speed-in-older-adults-systematic-review-and-meta-analysis
#20
REVIEW
Cedric Annweiler, Samir Henni, Stéphane Walrand, Manuel Montero-Odasso, Gustavo Duque, Guillaume T Duval
Vitamin D is involved in musculoskeletal health. There is no consensus on a possible association between circulating 25-hydroxyvitamin D (25OHD) concentrations and walking speed, a 'vital sign' in older adults. Our objective was to systematically review and quantitatively assess the association of 25OHD concentration with walking speed. A Medline search was conducted on June 2017, with no limit of date, using the MeSH terms "Vitamin D" OR "Vitamin D Deficiency" combined with "Gait" OR "Gait disorders, Neurologic" OR "Walking speed" OR "Gait velocity"...
December 2017: Maturitas
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