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Vitamin B6

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https://www.readbyqxmd.com/read/28550206/the-pseudoenzyme-pdx1-2-sustains-vitamin-b6-biosynthesis-as-a-function-of-heat-stress
#1
Elisa Dell'Aglio, Svetlana Boycheva, Teresa B Fitzpatrick
Plants sense temperature changes and respond by altering growth and metabolic activity to acclimate to the altered environmental conditions. The B vitamins give rise to vital coenzymes that are indispensable for growth and development but their inherent reactive nature renders them prone to destruction especially under stress conditions. Therefore, plant survival strategies would be expected to include mechanisms to sustain B vitamin supply under demanding circumstances. Here, using the example of vitamin B6, we investigate the regulation of biosynthesis across eudicot and monocot species under heat stress...
May 26, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28549143/bile-acids-and-tryptophan-metabolism-are-novel-pathways-involved-in-metabolic-abnormalities-in-bpa-exposed-pregnant-mice-and-male-offspring
#2
Martha Susiarjo, Frances Xin, Martha Stefaniak, Clementina Mesaros, Rebecca A Simmons, Marisa S Bartolomei
Increasing evidence has demonstrated that exposure to endocrine disrupting chemicals (EDCs) impacts maternal and fetal health, but the underlying mechanisms are still unclear. We have previously shown that dietary exposure to 10 µg/kg bw/day and 10 mg/kg bw/day bisphenol A (BPA) during pregnancy induced metabolic abnormalities in F1 male offspring and gestational glucose intolerance in F0 pregnant mice. The aim of this study is to elucidate the underlying etiologies of BPA exposure-induced metabolic disease by analyzing male fetal liver metabolome...
May 25, 2017: Endocrinology
https://www.readbyqxmd.com/read/28544589/methionine-tumor-starvation-by-erythrocyte-encapsulated-methionine-gamma-lyase-activity-controlled-with-per-os-vitamin-b6
#3
Fabien Gay, Karine Aguera, Karine Sénéchal, Angie Tainturier, Willy Berlier, Delphine Maucort-Boulch, Jérôme Honnorat, Françoise Horand, Yann Godfrin, Vanessa Bourgeaux
Erymet is a new therapy resulting from the encapsulation of a methionine gamma-lyase (MGL; EC number 4.4.1.11) in red blood cells (RBC). The aim of this study was to evaluate erymet potential efficacy in methionine (Met)-dependent cancers. We produced a highly purified MGL using a cGMP process, determined the pharmacokinetics/pharmacodynamics (PK/PD) properties of erymet in mice, and assessed its efficacy on tumor growth prevention. Cytotoxicity of purified MGL was tested in six cancer cell lines. CD1 mice were injected with single erymet product supplemented or not with vitamin B6 vitamer pyridoxine (PN; a precursor of PLP cofactor)...
May 23, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28544455/suboptimal-maternal-and-cord-plasma-pyridoxal-5-phosphate-concentrations-are-uncommon-in-a-cohort-of-canadian-pregnant-women-and-newborn-infants
#4
Lesley Plumptre, Shannon P Masih, Kyoung-Jin Sohn, Denise Kim, Carly E Visentin, Anna Ly, Howard Berger, Ruth Croxford, Deborah L O'Connor, Young-In Kim
Vitamin B6 is important in fetal development, but little is known of the vitamin B6 status of pregnant women and newborns in North America and potential modifying factors. This prospective study determined maternal and cord plasma concentrations of pyridoxal 5' phosphate (PLP; an indicator of vitamin B6 status) in a convenience sample of 368 Canadian pregnant women and their newborns. The association of maternal intake of vitamin B6 and fetal genetic variants with cord plasma PLP and homocysteine concentrations was also examined...
May 24, 2017: Maternal & Child Nutrition
https://www.readbyqxmd.com/read/28538871/what-do-cochrane-systematic-reviews-say-about-interventions-for-autism-spectrum-disorders
#5
Larissa Lyra, Luiz Eduardo Rizzo, Camila Sá Sunahara, Daniela Vianna Pachito, Carolina de Oliveira Cruz Latorraca, Ana Luiza Cabrera Martimbianco, Rachel Riera
CONTEXT AND OBJECTIVE: Autism spectrum disorders (ASDs) include autistic disorder, Asperger's disorder and pervasive developmental disorder. The manifestations of ASDs can have an important impact on learning and social functioning that may persist during adulthood. The aim here was to summarize the evidence from Cochrane systematic reviews on interventions for ASDs. DESIGN AND SETTING: Review of systematic reviews, conducted within the Discipline of Evidence-Based Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo...
March 2017: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/28531791/an-innovative-brioche-enriched-in-protein-and-energy-improves-the-nutritional-status-of-malnourished-nursing-home-residents-compared-to-oral-nutritional-supplement-and-usual-breakfast-farine-project
#6
Virginie Van Wymelbeke, Laurent Brondel, Francis Bon, Isabelle Martin-Pfitzenmeyer, Patrick Manckoundia
BACKGROUND & AIMS: To compare the effects of a 12-week nutritional intervention, in which an innovative protein-and-energy-enriched brioche, an oral nutritional supplement or a usual breakfast were eaten, on food intake and nutritional status in nursing home residents. DESIGN: Three-armed, multicentre, controlled trial. SETTING: Eight nursing homes in Burgundy, France. PARTICIPANTS: Sixty-eight malnourished participants aged between 70 and 99 years old...
October 2016: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/28531788/association-of-dietary-factors-with-severity-of-coronary-artery-disease
#7
Namita Mahalle, M K Garg, S S Naik, M V Kulkarni
BACKGROUND: Cardiovascular disease has taken epidemic proportions during past decades. Cardiovascular risk factors contribute to progression of coronary lesions, worsening the patient's prognosis. This study was planned to analyze the association of dietary factors with severity of coronary artery disease (CAD) in Indian patients. METHODS: Three hundred patients with known coronary disease above the age of 25 years were included in this study. Blood samples were collected for biochemical markers...
October 2016: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/28526382/quality-of-diet-and-level-of-physical-performance-related-to-inflammatory-markers-in-community-dwelling-frail-elderly-people
#8
Do-Yeon Kim, Chang-O Kim, Hyunjung Lim
OBJECTIVE: The aim of this study was to assess whether diet quality and functional status were associated with serum levels of interleukin (IL)-6 and tumor necrosis factor (TNF)-α in frail, elderly, community-dwelling individuals. METHODS: Seventy-eight frail, elderly individuals (age ≥65 y, usual gait speed <0.6 m/s and Mini Nutritional Assessment <24) participated in this cross-sectional study from the National Home Healthcare Services in Gangbuk-gu, Seoul, South Korea...
June 2017: Nutrition
https://www.readbyqxmd.com/read/28523048/what-to-eat-for-a-better-sleep-in-haemodialysis-patients-potential-role-of-b-vitamins-intake-and-appetite
#9
Dilek Ongan, Aysun Yuksel
OBJECTIVE: Sleeping disorders are common among Haemodialysis-HD patients. In addition to well-known factors, food consumption impact on sleep quality needs being discovered. Aim was to examine the nutrition-related factors that may influence sleep quality in HD patients. METHODS: One hundred and three patients in three HD centres participated. Data were collected with Pittsburgh Sleep Quality Index-PSQI and Questionnaire Form about socio-demographic characteristics and appetite...
March 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28520847/maternal-exposure-to-nitrogen-dioxide-intake-of-methyl-nutrients-and-congenital-heart-defects-in-offspring
#10
Jeanette A Stingone, Thomas J Luben, Suzan L Carmichael, Arthur S Aylsworth, Lorenzo D Botto, Adolfo Correa, Suzanne M Gilboa, Peter H Langlois, Wendy N Nembhard, Jennifer Richmond-Bryant, Gary M Shaw, Andrew F Olshan
Nutrients that regulate methylation processes may modify susceptibility to the effects of air pollutants. Data from the National Birth Defects Prevention Study, 1997-2006, were used to estimate associations between maternal exposure to nitrogen dioxide (NO2), dietary intake of methyl nutrients and the odds of congenital heart defects in offspring. NO2 concentrations, a marker of traffic-related air pollution, averaged across post-conception weeks 2-8, were assigned to 6160 non-diabetic mothers of cases and controls using inverse distance-squared weighting of air monitors within 50 km of maternal residence...
May 18, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28503432/nutrient-patterns-and-risk-of-cataract-a-case-control-study
#11
Fatemeh Sedaghat, Matin Ghanavati, Parisa Nezhad Hajian, Sara Hajishirazi, Mehdi Ehteshami, Bahram Rashidkhani
AIM: To assess the relation between nutrient patterns and cataract risk. METHODS: This is a hospital-based case-control study with 97 cataract patients and 198 matched controls. Dietary consumption was collected through a valid food frequency questionnaire (FFQ). Nutrient patterns were detected by applying factor analysis. Unconditional logistic regression models were used to estimate odds ratio (ORs) and 95%CIs. RESULTS: We extracted 5 main nutrient patterns...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28501542/metabolite-profile-of-koji-amazake-and-its-lactic-acid-fermentation-product-by-lactobacillus-sakei-uonuma
#12
Yoshifumi Oguro, Toshikazu Nishiwaki, Ryota Shinada, Kazuya Kobayashi, Atsushi Kurahashi
The koji amazake is a traditional sweet Japanese beverage. It has been consumed for over a thousand years in Japan; nonetheless, little is yet known of the ingredients in koji amazake. Therefore, this study aimed to analyze the metabolites of koji amazake using a metabolomics approach. Additionally, we reformed the flavor of koji amazake by lactic acid fermentation (LAF-amazake) using Lactobacillus sakei UONUMA, which was isolated from snow caverns. The purpose of this article is to identify the ingredients in these beverages...
May 10, 2017: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/28499901/antioxidant-and-anti-inflammatory-nutrient-status-supplementation-and-mechanisms-in-patients-with-schizophrenia
#13
REVIEW
Sumedha Mitra, Radhika Natarajan, Douglas Ziedonis, Xiaoduo Fan
Over 50 million people around the world suffer from schizophrenia, a severe mental illness characterized by misinterpretation of reality. Although the exact causes of schizophrenia are still unknown, studies have indicated that inflammation and oxidative stress may play an important role in the etiology of the disease. Pro-inflammatory cytokines are crucial for normal central nervous development and proper functioning of neural networks and neurotransmitters. Patients with schizophrenia tend to have abnormal immune activation resulting in elevated pro-inflammatory cytokine levels, ultimately leading to functional brain impairments...
May 9, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28482542/application-of-functionalized-multi-walled-carbon-nanotubes-supporting-cuprous-oxide-and-silver-oxide-composite-catalyst-on-copper-substrate-for-simultaneous-detection-of-vitamin-b2-vitamin-b6-and-ascorbic-acid
#14
Apinya Puangjan, Suwan Chaiyasith, Wipawee Taweeporngitgul, Jeerunda Keawtep
A new electrochemical sensor was fabricated from chemically functionalized multiwall carbon nanotubes and electrochemically deposited cuprous oxide and silver oxide composite over the nanotubes on copper substrate. The structural, functional, morphological, electrical properties and elemental composition of the composite were characterized by X-ray diffractometry, Fourier transform infrared spectroscopy, field transmission electron microscopy, electrochemical impedance spectroscopy and energy dispersive X-ray spectroscopy...
July 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28481642/micronutrient-therapy-for-violent-and-aggressive-male-youth-an-open-label-trial
#15
Jessica L Hambly, Kelly Francis, Sohil Khan, Kristen S Gibbons, William J Walsh, Brett Lambert, Chris Testa, Alison Haywood
OBJECTIVES: Pharmacotherapy for problematic aggressive and violent behavior disorders in male children and adolescents is associated with significant adverse events. Treatments with more acceptable risk-benefit ratios are critically needed. Micronutrient intervention will be investigated as an alternative to bridge the therapeutic gap in the management of these behaviors. METHODS: Males aged 4-14 who displayed ongoing violent and aggressive behaviors received micronutrient intervention containing alpha-tocopherol (vitamin E), ascorbic acid (vitamin C), biotin, chromium, pyridoxal-5-phosphate (P5P), pyridoxine (vitamins B6), selenium, and zinc, in a 16-week open-label trial...
May 8, 2017: Journal of Child and Adolescent Psychopharmacology
https://www.readbyqxmd.com/read/28479390/arsenic-metabolism-and-one-carbon-metabolism-at-low-moderate-arsenic-exposure-evidence-from-the-strong-heart-study
#16
Miranda Jones Spratlen, Mary V Gamble, Maria Grau-Perez, Chin-Chi Kuo, Lyle G Best, Joseph Yracheta, Kevin Francesconi, Walter Goessler, Yasmin Mossavar-Rahmani, Meghan Hall, Jason G Umans, Amanda Fretts, Ana Navas-Acien
B-vitamins involved in one-carbon metabolism (OCM) can affect arsenic metabolism efficiency in highly arsenic exposed, undernourished populations. We evaluated whether dietary intake of OCM nutrients (including vitamins B2, B6, folate (B9), and B12) was associated with arsenic metabolism in a more nourished population exposed to lower arsenic than previously studied. Dietary intake of OCM nutrients and urine arsenic was evaluated in 405 participants from the Strong Heart Study. Arsenic exposure was measured as the sum of iAs, monomethylarsonate (MMA) and dimethylarsenate (DMA) in urine...
May 4, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28476156/nutritional-deficiencies-in-homeless-persons-with-problematic-drinking-a-systematic-review
#17
REVIEW
Sharea Ijaz, Joni Jackson, Helen Thorley, Katie Porter, Clare Fleming, Alison Richards, Adrian Bonner, Jelena Savović
BACKGROUND: A significant proportion of homeless people drink alcohol excessively and this can lead to malnutrition and consequent medical problems. The aim of this review was to assess the evidence on the range of nutritional deficiencies in the homeless problem-drinking populations. METHODS: We conducted a comprehensive search of nine scientific literature databases and 13 grey literature sources. We included studies of any design that included homeless population with problem-drinking and reported measures of nutritional deficiencies in urine or blood...
May 5, 2017: International Journal for Equity in Health
https://www.readbyqxmd.com/read/28467392/development-of-a-healthy-dietary-habits-index-for-new-zealand-adults
#18
Jyh Eiin Wong, Jillian J Haszard, Anna S Howe, Winsome R Parnell, Paula M L Skidmore
Healthful dietary habits are individually associated with better nutrient intake and positive health outcomes; however, this information is rarely examined together to validate an indicator of diet quality. This study developed a 15-item Healthy Dietary Habits Index (HDHI) based on self-reported dietary habits information collected in the 2008/09 New Zealand Adult Nutrition Survey. The validity of HDHI as a diet quality index was examined in relation to sociodemographic factors, 24-diet recall derived nutrient intakes, and nutritional biomarkers in a representative sample of adults aged 19 years and above...
May 3, 2017: Nutrients
https://www.readbyqxmd.com/read/28462727/a-prospective-evaluation-of-the-depression-nutrient-intake-reverse-causality-hypothesis-in-a-cohort-of-community-dwelling-older-canadians
#19
Laura Gougeon, Hélène Payette, José A Morais, Pierrette Gaudreau, Bryna Shatenstein, Katherine Gray-Donald
Studies have investigated the potential protective effects that diet may have on late-life depression incidence. This disorder can, however, affect the person's food intake, widely known as the reverse causality hypothesis of depression. To test this hypothesis, we compared mean nutrient intakes from three 24-h recalls during the year depression was detected (Geriatric Depression Scale ≥11 or antidepressant medication) with intakes from 1 year earlier among community-dwelling older adults (67-83 years) followed up annually in the 4-year Québec Longitudinal Study on Nutrition and Aging, who were free of depression and cognitive impairment at baseline...
May 2, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28462631/effects-of-selected-dietary-constituents-on-high-sensitivity-c-reactive-protein-levels-in-u-s-adults
#20
Mohsen Mazidi, Andre Pascal Kengne, Dimitri P Mikhailidis, Arrigo F Cicero, Maciej Banach
BACKGROUND AND AIM: Growing evidence suggests that some of the effects of diet on cardiovascular disease (CVD) occur through mechanisms involving subclinical inflammation. We assessed the relationship between selected dietary constituents and serum high-sensitivity C-reactive protein (hsCRP) concentration in a population-based sample of United States adults. METHOD: In this cross-sectional analysis, participants were selected from the US National Health and Nutrition Examination Survey (NHANES) and restricted to those with available data on dietary intake, biochemical and anthropometric measurements from 2001 to 2010...
May 2, 2017: Annals of Medicine
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