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Vitamin B2

Xiang Li, Tiange Wang, Min Zhao, Tao Huang, Dianjianyi Sun, Liyuan Han, Hoirun Nisa, Xiaoyun Shang, Yoriko Heianza, Lu Qi
BACKGROUND: Growing evidence has implicated DNA methylation (DNAm) in the regulation of body adiposity; a recent epigenome-wide association study (EWAS) identified a genetic variant determining DNAm at the SREBF1 gene that affected body mass index (BMI). OBJECTIVE: In the present study, we tested interactions between DNAm variant rs752579 and methylation metabolism-related B-vitamins (folate, vitamin B2 , vitamin B6 , and vitamin B12 ) on longitudinal change in BMI in the Women's Health Initiative Memory Study (WHIMS)...
May 17, 2018: International Journal of Obesity: Journal of the International Association for the Study of Obesity
Parisa Mohammadi, Hassan Hassani Bafrani, Marziyeh Tavalaee, Maurizio Dattilo, Mohammad Hossein Nasr-Esfahani
OBJECTIVES: To demonstrate that micronutrients in support of the one-carbon cycle and glutathione synthesis are effective in improving sperm damage following surgical varicocele in rats and that this effect is achieved without suffering a rebound reductive stress as seen with oral antioxidants. MATERIALS AND METHODS: Surgical varicocele was induced in adult male Wistar rats and resulted in significant damage to testis and sperm cells measured 2 and 4 months post-surgery...
May 11, 2018: BJU International
Shuai Ben, Mulong Du, Gaoxiang Ma, Jianhua Qu, Liyang Zhu, Haiyan Chu, Zhengdong Zhang, Yuan Wu, Dongying Gu, Meilin Wang
PURPOSE: Several epidemiological studies have assessed the ability of vitamin B2 to prevent colorectal cancer (CRC), but the results are controversial results. We conducted a dose-response meta-analysis to investigate the association between vitamin B2 and CRC risk. METHODS: We searched the PubMed and EMBASE database until January 3, 2018 to identify relevant studies. The pooled relative risks (RRs) with the corresponding 95% confidence intervals (CIs) were calculated using a random-effects model or fixed-effects model...
May 9, 2018: European Journal of Nutrition
Enisa Hodzic
Introduction: Ischemic heart disease (IHD) is clinical manifestation of chronic inflammatory progressive pathological process of atherosclerosis in coronary arteries. IHD is the leading cause of morbidity and mortality in the world. The question is whether it is possible to improve and direct the therapeutic treatment of IHD patients in the treatment of the inflammatory process in the atherosclerotic leasions. Material and Methods: A prospective, comparative, analytica,clinically applicable, open-type study was performed...
April 2018: Medical Archives
Mark Lucock, Patrice Jones, Charlotte Martin, Zoe Yates, Martin Veysey, John Furst, Emma Beckett
This review explores contemporary ideas about the relationship between light exposure and vitamin biology. Nutritional biochemistry has long recognized the relationship between vitamins A and D and light exposure, but in recent years other vitamins have also been implicated in photoresponsive biological mechanisms that influence health, well-being, and even evolutionary processes. Interactions between light and vitamins can modify genotype-phenotype relationships across the life cycle, providing a basis for interesting new explanations relevant to wide aspects of human biology...
April 28, 2018: Nutrition Reviews
Katsumi Shibata
The pathway of tryptophan (Trp)-nicotinamide is very important nutritionally because a vitamin nicotinamide is biosynthesized from an amino acid Trp. Until we started studying the factors that affect the Trp-nicotinamide conversion rate, little data existed. Data obtained from TDO (Trp 2,3-dioxygenase)-KO (knock-out) mice have revealed that mice can biosynthesize a necessary amount of nicotinamide from Trp by indoleamine 2,3-dioxygenase (IDO) even when TDO is lacking. It has also been shown that 3-hydroxyanthranilic acid is a key intermediate...
2018: Journal of Nutritional Science and Vitaminology
James M Wagner, Leqian Liu, Shuo-Fu Yuan, Maya V Venkataraman, Adam R Abate, Hal S Alper
Evolutionary approaches to strain engineering inherently require the identification of suitable selection techniques for the product and phenotype of interest. In this work, we undertake a comparative analysis of two related but functionally distinct methods of high-throughput screening: traditional single cell fluorescence activated cell sorting (single cell FACS) and microdroplet-enabled FACS (droplet FACS) using water/oil/water (w/o/w) emulsions. To do so, we first engineer and evolve the non-conventional yeast Yarrowia lipolytica for high extracellular production of riboflavin (vitamin B2), an innately fluorescent product...
April 23, 2018: Metabolic Engineering
Lars Kjer-Nielsen, Alexandra J Corbett, Zhenjun Chen, Ligong Liu, Jeffrey Y W Mak, Dale I Godfrey, Jamie Rossjohn, David P Fairlie, James McCluskey, Sidonia B G Eckle
Mucosal Associated Invariant T (MAIT) cells are restricted by the monomorphic MHC class I-like molecule, MHC-related protein-1 (MR1). Until 2012, the origin of the MAIT cell antigens (Ags) was unknown, although it was established that MAIT cells could be activated by a broad range of bacteria and yeasts, possibly suggesting a conserved Ag. Using a combination of protein chemistry, mass spectrometry, cellular biology, structural biology and chemistry, we discovered MAIT cell ligands derived from folic acid (vitamin B9) and from an intermediate in the microbial biosynthesis of riboflavin (vitamin B2)...
April 14, 2018: Immunology and Cell Biology
France Bellisle, Pascale Hébel, Alice Fourniret, Eléna Sauvage
Sugar-containing beverages are often seen as a negative influence on diet quality and body weight control. The present study examines the consumption of 100% fruit juice (FJ) based on a seven-day dietary survey in a representative sample of French adults ( n = 1607). About a half of the participants (44%) consumed FJ, most often at breakfast time (60%). Average intake in FJ consumers was 115.6 ± 4.0 mL/day (46.3 ± 1.7 kcal/day). Prevalence of consumption increased with education and income and decreased with age, but no association was observed with body mass index (BMI), physical activity, or smoking...
April 7, 2018: Nutrients
Hiroshi Kanazawa, Ryosuke Shigemoto, Yukie Kawasaki, Ken-Ichi Oinuma, Akira Nakamura, Shunsuke Masuo, Naoki Takaya
The actinobacterium Microbacterium maritypicum splits riboflavin (vitamin B2 ) into lumichrome and d-ribose. However, such degradation by other bacteria and the involvement of a two-component flavin-dependent monooxygenase (FMO) in the reaction remain unknown. Here we investigated the mechanism of riboflavin degradation by the riboflavin-assimilating α-proteobacterium Devosia riboflavina (formerly Pseudomonas riboflavina ). We found that adding riboflavin to bacterial cultures induced riboflavin-degrading activity and a protein of the FMO family that had 67% amino-acid identity with the predicted riboflavin hydrolase, RcaE, of M...
April 2, 2018: Journal of Bacteriology
Kathleen Copp, Emily A DeFranco, Jeanne Kleiman, Lynette K Rogers, Ardythe L Morrow, Christina J Valentine
BACKGROUND: Human milk feeding is encouraged for all infants; however, the mammary gland depends on maternal dietary intake of vitamins A, B1, B2, B6, B12, D, docosahexaenoic acid (DHA), choline, and iodine. Nutrition support team knowledge of maternal feeding guidelines for these nutrient sources can therefore impact infant intake. We hypothesized that these key nutrients for lactation in the mother's diet would be less than the dietary guidelines in the United States. METHODS: This was a secondary analysis of nutrition data collected during a randomized, controlled trial...
March 30, 2018: Nutrition in Clinical Practice
Sidika Tapsin, Miao Sun, Yang Shen, Huibin Zhang, Xin Ni Lim, Teodorus Theo Susanto, Siwy Ling Yang, Gui Sheng Zeng, Jasmine Lee, Alexander Lezhava, Ee Lui Ang, Lian Hui Zhang, Yue Wang, Huimin Zhao, Niranjan Nagarajan, Yue Wan
RNAs are well-suited to act as cellular sensors that detect and respond to metabolite changes in the environment, due to their ability to fold into complex structures. Here, we introduce a genome-wide strategy called PARCEL that experimentally identifies RNA aptamers in vitro, in a high-throughput manner. By applying PARCEL to a collection of prokaryotic and eukaryotic organisms, we have revealed 58 new RNA aptamers to three key metabolites, greatly expanding the list of natural RNA aptamers. The newly identified RNA aptamers exhibit significant sequence conservation, are highly structured and show an unexpected prevalence in coding regions...
March 29, 2018: Nature Communications
Darija Vranešić Bender, Marinela Nutrizio, Mirja Jošić, Dina Ljubas Kelečić, Irena Karas, Marina Premužić, Viktor Domislović, Cecilija Rotim, Željko Krznarić
Non-alcoholic fatty liver disease (NAFLD) is becoming a major health burden with increasing prevalence worldwide due to its close association with the epidemic of obesity. Currently there is no standardized pharmacological treatment, and the only proven effective therapeutic strategy is lifestyle modification, therefore it is important to determine the potential dietary targets for the prevention and treatment of NAFLD. We assessed nutritional status in 30 patients diagnosed with NAFLD using anthropometric parameters, hand grip strength, and lifestyle and dietetic parameters (physical activity, NRS2002 form and three-day food diary)...
December 2017: Acta Clinica Croatica
Jin Liu, Weina Gao, Lingling Pu, Jingyu Wei, Zhonghao Xin, Yawen Wang, Tala Shi, Changjiang Guo
This study was aimed to observe the effects of vitamins B1, B2 and niacin supplementation on hepatic gene expression profiles in mice exposed to acute hypoxia. Thirty mice were randomly divided into normal, acute hypoxia, and acute hypoxia plus vitamins B1, B2 and niacin supplementation groups and fed corresponding diets for two weeks and then exposed to a simulated altitude of 6000 meters for 8 hours. Hepatic gene expression profiles were analyzed using a microarray technique. Several biochemical markers were also assayed...
March 22, 2018: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
Uchechukwu I Okafor, Adebunkola M Omemu, Adewale O Obadina, Mobolaji O Bankole, Samuel A O Adeyeye
Maize was cofermented with pigeon pea for ogi production and evaluated for nutritional (proximate composition, minerals, vitamins, and amino acid profile analyses) and antinutritional (phytate, tannin, and trypsin inhibitor activity analyses) qualities. White maize and pigeon pea were mixed at ratios of 90:10, 80:20, 70:30, 60:40, and 50:50, respectively, with 100:0 serving as the control. Mixtures were cofermented for 96 hr at 27°C ± 2°C and nutritional, mineral, and antinutritional qualities were analyzed using analysis of variance...
March 2018: Food Science & Nutrition
James B Adams, Tapan Audhya, Elizabeth Geis, Eva Gehn, Valeria Fimbres, Elena L Pollard, Jessica Mitchell, Julie Ingram, Robert Hellmers, Dana Laake, Julie S Matthews, Kefeng Li, Jane C Naviaux, Robert K Naviaux, Rebecca L Adams, Devon M Coleman, David W Quig
This study involved a randomized, controlled, single-blind 12-month treatment study of a comprehensive nutritional and dietary intervention. Participants were 67 children and adults with autism spectrum disorder (ASD) ages 3-58 years from Arizona and 50 non-sibling neurotypical controls of similar age and gender. Treatment began with a special vitamin/mineral supplement, and additional treatments were added sequentially, including essential fatty acids, Epsom salt baths, carnitine, digestive enzymes, and a healthy gluten-free, casein-free, soy-free (HGCSF) diet...
March 17, 2018: Nutrients
Meghan McGee, Shannon Bainbridge, Bénédicte Fontaine-Bisson
The fetal origins of health and disease framework has identified extremes in fetal growth and birth weight as factors associated with the lifelong generation of chronic diseases such as obesity, diabetes, cardiovascular disease, and hypertension. Maternal nutrition plays a critical role in fetal and placental development, in part by providing the methyl groups required to establish the fetus's genome structure and function, notably through DNA methylation. The goal of this narrative review is to describe the role of maternal dietary methyl donor (methionine, folate, and choline) and cofactor (zinc and vitamins B2, B6, and B12) intake in one-carbon metabolism and DNA methylation in the fetus and placenta, as well as their impacts on fetal growth and lifelong health outcomes, with specific examples in animals and humans...
June 1, 2018: Nutrition Reviews
Rachael M Taylor, Roger Smith, Clare E Collins, David Mossman, Michelle W Wong-Brown, Eng-Cheng Chan, Tiffany-Jane Evans, John R Attia, Tenele Smith, Trent Butler, Alexis J Hure
BACKGROUND: During the early postnatal period, the impact of nutrition on DNA methylation has not been well studied in humans. The aim was to quantify the relationship between one-carbon metabolism nutrient intake during the first three years of life and global DNA methylation levels at four years. DESIGN: Childhood dietary intake was assessed using infant feeding questionnaires, food frequency questionnaires, 4-day weighed food records and 24-h food records. The dietary records were used to estimate the intake of methionine, folate, vitamins B2, B6 and B12 and choline...
February 27, 2018: Nutrients
Alexander Guhr, Marcus A Horn, Alfons R Weig
Drought is a stressor for many soil-inhabiting organisms. Although plants have been extensively investigated for drought-adaptive mechanisms, little information is available for fungi. Antioxidants are especially relevant, since desiccation is accompanied by an excessive intracellular production of reactive oxygen species. Riboflavin (vitamin B2 ) is one antioxidant regulating drought tolerance in plants. A similar function may exist in fungi. Here, we examined the respiratory and transcriptional responses of Agaricus bisporus to drought and the impact of riboflavin...
2017: Mycologia
Francesca Romana Mancini, Courtney Dow, Aurélie Affret, Kalina Rajaobelina, Laureen Dartois, Beverley Balkau, Fabrice Bonnet, Marie-Christine Boutron-Ruault, Guy Fagherazzi
BACKGROUND: Micronutrients play a key role in type 2 diabetes mellitus (T2DM), but methodological difficulties arise from their collinearity and interdependencies with foods. The aim of the present study was to identify micronutrient dietary patterns in the E3N-EPIC (Etude Epidémiologique auprès de femmes de l'Education Nationale) cohort and to investigate their association with risk of T2DM. METHODS: Principal component analysis was used to identify micronutrient patterns among 71 270 women from the E3N-EPIC cohort...
February 19, 2018: Journal of Diabetes
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