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https://www.readbyqxmd.com/read/28429318/biochemistry-and-physiology-of-vitamins-in-euglena
#1
Fumio Watanabe, Kazuya Yoshimura, Shigeru Shigeoka
Euglena gracilis Z requires vitamins B1 and B12 for growth. It takes up and accumulates large amounts of these exogenous vitamins through energy-dependent active transport systems. Except for these essential vitamins, E. gracilis Z has the ability to synthesize all human vitamins. Euglena synthesizes high levels of antioxidant vitamins such as vitamins C and E, and, thus, are used as nutritional supplements for humans and domestic animals. Methods to effectively produce vitamins in Euglena have been investigated...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28429314/evolutionary-origin-of-euglena
#2
Bożena Zakryś, Rafał Milanowski, Anna Karnkowska
Euglenids (Excavata, Discoba, Euglenozoa, Euglenida) is a group of free-living, single-celled flagellates living in the aquatic environments. The uniting and unique morphological feature of euglenids is the presence of a cell covering called the pellicle. The morphology and organization of the pellicle correlate well with the mode of nutrition and cell movement. Euglenids exhibit diverse modes of nutrition, including phagotrophy and photosynthesis. Photosynthetic species (Euglenophyceae) constitute a single subclade within euglenids...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28424769/folates-in-plants-research-advances-and-progress-in-crop-biofortification
#3
REVIEW
Vera Gorelova, Lars Ambach, Fabrice Rébeillé, Christophe Stove, Dominique Van Der Straeten
Folates, also known as B9 vitamins, serve as donors and acceptors in one-carbon (C1) transfer reactions. The latter are involved in synthesis of many important biomolecules, such as amino acids, nucleic acids and vitamin B5. Folates also play a central role in the methyl cycle that provides one-carbon groups for methylation reactions. The important functions fulfilled by folates make them essential in all living organisms. Plants, being able to synthesize folates de novo, serve as an excellent dietary source of folates for animals that lack the respective biosynthetic pathway...
2017: Frontiers in Chemistry
https://www.readbyqxmd.com/read/28422588/alterations-in-redox-homeostasis-during-recovery-from-unexplained-underperformance-syndrome-in-an-elite-international-rower
#4
Nathan A Lewis, Ann Redgrave, Mark Homer, Richard Burden, Wendy Martinson, Brian Moore, Charles R Pedlar
PURPOSE: This case study of an international rower examines a diagnosis of Unexplained Under Performance Syndrome (UUPS or Overtraining Syndrome) describing a full recovery and return to elite competition the same year. METHODS: On diagnosis and 4 and 14 months post-diagnosis, detailed assessments including physiological, nutritional, and biomarkers were made. RESULTS: Clinical examination and laboratory results for haematology, biochemistry, thyroid function, immunology, vitamins and minerals were unremarkable and did not explain the presentation and diagnosis...
April 19, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28401081/zinc-in-pancreatic-islet-biology-insulin-sensitivity-and-diabetes
#5
REVIEW
Wolfgang Maret
About 20 chemical elements are nutritionally essential for humans with defined molecular functions. Several essential and nonessential biometals are either functional nutrients with antidiabetic actions or can be diabetogenic. A key question remains whether changes in the metabolism of biometals and biominerals are a consequence of diabetes or are involved in its etiology. Exploration of the roles of zinc (Zn) in this regard is most revealing because 80 years of scientific discoveries link zinc and diabetes...
March 2017: Preventive Nutrition and Food Science
https://www.readbyqxmd.com/read/28378846/forearm-to-fingertip-skin-temperature-gradients-in-the-thermoneutral-zone-were-significantly-related-to-resting-metabolic-rate-potential-implications-for-nutrition-research
#6
K Pathak, E K Calton, M J Soares, Y Zhao, A P James, K Keane, P Newsholme
BACKGROUND: Resting metabolic rate (RMR) should be measured in the thermoneutral zone (TNZ). Forearm to fingertip skin temperature gradients (FFG) could serve as an objective measure of this pre-condition. SUBJECTS/METHODS: Eighty-six adult Australians were studied at 25 °C in a temperature-controlled chamber. Measurements of overnight fasted RMR, respiratory quotient (RQ) and FFG were complemented by clinical biochemistry. McAuley's Index of insulin sensitivity (McA_ISI) and presence of metabolic syndrome was determined...
April 5, 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28367086/characterization-of-the-serum-and-liver-proteomes-in-gut-microbiota-lacking-mice
#7
Yu-Tang Tung, Ying-Ju Chen, Hsiao-Li Chuang, Wen-Ching Huang, Chun-Tsung Lo, Chen-Chung Liao, Chi-Chang Huang
Current nutrition research is focusing on health promotion, disease prevention, and performance improvement for individuals and communities around the world. The humans with required nutritional ingredients depend on both how well the individual is provided with balanced foods and what state of gut microbiota the host has. Studying the mutually beneficial relationships between gut microbiome and host is an increasing attention in biomedical science. The purpose of this study is to understand the role of gut microbiota and to study interactions between gut microbiota and host...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28348184/comparison-of-the-prognostic-values-of-inflammation-markers-in-patients-with-acute-pancreatitis-a-retrospective-cohort-study
#8
Yuanyuan Li, Ying Zhao, Limin Feng, Renyong Guo
OBJECTIVES: Inflammation-based prognostic markers (neutrophil-lymphocyte ratio (NLR), prognostic nutritional index (PNI), red cell distribution width (RDW) and lymphocyte-monocyte ratio (LMR)) are associated with overall survival in some diseases. This study assessed their prognostic value in mortality and severity in acute pancreatitis (AP). DESIGN: A retrospective cohort study. SETTING: Patients with AP were recruited from the emergency department at our hospital...
March 27, 2017: BMJ Open
https://www.readbyqxmd.com/read/28327966/de-novo-transcriptome-assemblies-of-four-xylem-sap-feeding-insects
#9
Erica E Tassone, Charles C Cowden, S J Castle
Background: Spittle bugs and sharpshooters are well-known xylem sap-feeding insects and vectors of the phytopathogenic bacterium Xylella fastidiosa (Wells), a causal agent of Pierce's disease of grapevines and other crop diseases. Specialized feeding on nutrient-deficient xylem sap is relatively rare among insect herbivores, and only limited genomic and transcriptomic information has been generated for xylem-sap feeders. To develop a more comprehensive understanding of biochemical adaptations and symbiotic relationships that support survival on a nutritionally austere dietary source, transcriptome assemblies for three sharpshooter species and one spittlebug species were produced...
February 24, 2017: GigaScience
https://www.readbyqxmd.com/read/28316968/a-stepwise-pilot-study-of-bovine-colostrum-to-supplement-the-first-enteral-feeding-in-preterm-infants-precolos-study-protocol-and-initial-results
#10
Yanqi Li, Sandra M Juhl, Xuqiang Ye, René L Shen, Elisabeth Omolabake Iyore, Yiheng Dai, Per T Sangild, Gorm O Greisen
STUDY PROTOCOL: The optimal feeding for preterm infants during the first weeks is still debated, especially when mother's own milk is lacking or limited. Intact bovine colostrum (BC) contains high amounts of protein, growth factors, and immuno-regulatory components that may benefit protein intake and gut maturation. We designed a pilot study to investigate the feasibility and tolerability of BC as the first nutrition for preterm infants. The study was designed into three phases (A, B, and C) and recruited infants with birth weights of 1,000-1,800 g (China) or gestational ages (GAs) of 27 + 0 to 32 + 6 weeks (Denmark)...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28294445/the-challenge-of-nutritional-profiling-of-a-protein-free-feed-module-for-children-on-low-protein-tube-feeds-with-organic-acidaemias
#11
A Daly, S Evans, C Ashmore, S Chahal, S Santra, A MacDonald
BACKGROUND: Enteral tube feeding for children with organic acidaemias (OA) is recommended. Protein restriction, providing minimum safe levels of protein intake, is advocated. Standard paediatric tube feeding formulae provide more than the minimum safe protein requirements and are unsuitable in OA without modification. Modified paediatric enteral feeds consist of several modular ingredients. The aim of this prospective longitudinal interventional study was to assess the efficacy of a premeasured novel protein-free module developed for children aged over 12 months compared to conventional practice...
March 10, 2017: Journal of Human Nutrition and Dietetics: the Official Journal of the British Dietetic Association
https://www.readbyqxmd.com/read/28171716/reference-intervals-of-thyroid-hormones-during-pregnancy-in-korea-an-iodine-replete-area
#12
Hye Jeong Kim, Yoon Young Cho, Sun Wook Kim, Tae Hyuk Kim, Hye Won Jang, Soo-Youn Lee, Suk-Joo Choi, Cheong-Rae Roh, Jong-Hwa Kim, Jae Hoon Chung, Soo-Young Oh
Background/Aims: Maternal thyroid dysfunction has been associated with adverse pregnancy outcomes. The purpose of our study was to establish trimester-specific reference intervals for thyroid hormones in pregnant women in Korea, where iodine intake is more than adequate and to examine pregnancy and perinatal outcomes in their offspring. Methods: Among 459 healthy pregnant women who were screened, we enrolled 417 subjects who had negative results for thyroid autoantibodies...
February 8, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28165555/nutritional-status-and-intrarenal-arterial-stiffness-in-cardiorenal-syndrome-a-pilot-study
#13
A Gigante, F Di Mario, B Barbano, E Rosato, G Di Lazzaro Giraldi, R Pofi, M L Gasperini, D Amoroso, R Cianci, A Laviano
OBJECTIVE: Cardio-Renal Syndrome (CRS) is a condition, which is more frequently observed in clinical practice. The aim of this study is to explore nutritional status and intrarenal arterial stiffness in patients affected by CRS. PATIENTS AND METHODS: 14 consecutive CRS patients, screened for anthropometry, biochemistry, nutritional and metabolic status underwent renal Doppler ultrasound and whole-body bioimpedance spectroscopy (BIS). RESULTS: We found a positive correlation between phase angle (PA) and CKD-EPI and MDRD (p=0...
January 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28139496/therapeutic-efficacy-of-an-elemental-diet-for-patients-with-crohn-s-disease-and-its-association-with-amino-acid-metabolism
#14
Masakazu Nakano, Keiichi Tominaga, Atsushi Hoshino, Takeshi Sugaya, Kazunari Kanke, Hideyuki Hiraishi
BACKGROUND/AIM: We investigated the association between blood amino acid concentration changes caused by elemental diet (ED) and their relationship to its therapeutic effect. PATIENTS AND METHODS: Patients with active Crohn's disease (CD) followed ED for 12 weeks. Patients not previously treated with ED were defined as new ED, and those with previous ED therapy (≥900 kcal/day) were defined as previous ED. Disease activity markers [Crohn's disease activity index (CDAI) and C-reactive protein (CRP) level], blood biochemistry test results, and plasma amino acid concentrations were measured before and after the treatment...
January 2017: Saudi Journal of Gastroenterology: Official Journal of the Saudi Gastroenterology Association
https://www.readbyqxmd.com/read/28137641/safety-assessment-of-xylan-by-a-90-day-feeding-study-in-rats
#15
Guangqiu Qin, Pingjing Wen, Yanwu Wang, Lujuan Zhang, Huili Liang, Huiyan Qin, Song Tang, Peng Zhao
Xylans are present naturally in various plants and have important uses in nutrition, food, novel material and biotechnology; however, to date, data regarding their systemic toxicity and safety evaluation is still limited. This study investigated the potential toxicity of xylan from sugarcane bagasse by a subchronic toxicity study in rats. A total of 80 male and female rats were fed with diets containing 10%, 5%, 2.5% and 0% (control) xylan for 90 days. A toxicological assessment was performed including mortality, body and organ weights, food consumption, blood biochemistry, hematology, urinalysis, gross necropsy and histopathological examinations...
April 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/28107066/hematologic-plasma-biochemical-and-lipid-panel-reference-intervals-in-orange-winged-amazon-parrots-amazona-amazonica
#16
Claire Vergneau-Grosset, Tamsen Polley, Danielle Carrade Holt, William Vernau, Joanne Paul-Murphy
To establish reference intervals in orange-winged Amazon parrots ( Amazona amazonica ) for the complete blood count, plasma biochemical values, and lipid panel and to evaluate age- and sex-related variations, blood samples were obtained from 29 healthy juvenile and adult parrots. Concentrations of total protein, bile acids, phosphorus, total cholesterol, low-density-lipoprotein cholesterol (LDL-C), and high-density lipoprotein cholesterol were significantly higher in adult compared with juvenile birds, while uric acid concentration was significantly higher in juveniles...
December 2016: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/28080899/health-and-nutritional-assessment-of-free-ranging-eastern-indigo-snakes-drymarchon-couperi-in-georgia-united-states
#17
S Emmanuelle Knafo, Terry M Norton, Mark Mitchell, Dirk J Stevenson, Natalie Hyslop, Robert Poppenga, Marcie Oliva, Tai Chen, Carolyn Cray, Samantha E J Gibbs, Lance Durden, Nancy Stedman, Stephen Divers, Ellen Dierenfeld
Clinical pathology and nutritional parameters are useful in evaluating and monitoring threatened and endangered wildlife populations, but reference ranges for most snake species are lacking. From 2001 to 2005, health assessments were performed on 58 eastern indigo snakes (EIS) (Drymarchon couperi) captured in the wild in southeastern Georgia, United States. Health and nutritional assessments performed included hematology, serum biochemistry, fat-soluble vitamins, heavy metals, pesticide contaminants, parasitology, and surveys of other pathogens...
December 2016: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28029505/parenteral-nutrition-dysregulates-bile-salt-homeostasis-in-a-rat-model-of-parenteral-nutrition-associated-liver-disease
#18
Kiran V K Koelfat, Frank G Schaap, Caroline M J M Hodin, Ruben G J Visschers, Björn I Svavarsson, Martin Lenicek, Ronit Shiri-Sverdlov, Kaatje Lenaerts, Steven W M Olde Damink
BACKGROUND & AIMS: Parenteral nutrition (PN), a lifesaving therapy in patients with intestinal failure, has been associated with hepatobiliary complications including steatosis, cholestasis and fibrosis, collectively known as parenteral nutrition-associated liver disease (PNALD). To date, the pathogenesis of PNALD is poorly understood and therapeutic options are limited. Impaired bile salt homeostasis has been proposed to contribute PNALD. The objective of this study was to establish a PNALD model in rats and to evaluate the effects of continuous parenteral nutrition (PN) on bile salt homeostasis...
September 24, 2016: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28028742/growth-enzymatic-glutathione-peroxidase-activity-and-biochemical-status-of-juvenile-barramundi-lates-calcarifer-fed-dietary-fermented-soybean-meal-and-organic-selenium
#19
I Ilham, Ravi Fotedar
Solvent-extracted soybean meal (SBM) was fermented using baker's yeast Saccharomyces cerevisae at 30 °C for 5 days. Four isonitrogenous and isocaloric diets containing 75% SBM protein, either fermented or non-fermented (SBM and FSBM), and supplemented or not with organic Se (OS) (SBMOS and FSBMOS), were fed to triplicate groups of juvenile barramundi (Lates calcarifer) (initial weight of 5 g) for 75 days. A fishmeal (FM)-based diet formulated for juvenile barramundi was used as a reference diet. The growth of fish was significantly affected by either the interaction of SBM type or by the OS level...
December 27, 2016: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/27989793/community-metabolic-modeling-approaches-to-understanding-the-gut-microbiome-bridging-biochemistry-and-ecology
#20
REVIEW
Helena Mendes-Soares, Nicholas Chia
Interest in the human microbiome is at an all time high. The number of human microbiome studies is growing exponentially, as are reported associations between microbial communities and disease. However, we have not been able to translate the ever-growing amount of microbiome sequence data into better health. To do this, we need a practical means of transforming a disease-associated microbiome into a health-associated microbiome. This will require a framework that can be used to generate predictions about community dynamics within the microbiome under different conditions, predictions that can be tested and validated...
December 15, 2016: Free Radical Biology & Medicine
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