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https://www.readbyqxmd.com/read/28727483/pharmacological-treatment-of-tardive-dyskinesia-recent-developments
#1
Stanley N Caroff, E Cabrina Campbell, Benjamin Carroll
Tardive dyskinesia (TD) occurs in patients receiving antipsychotic treatment with dopamine receptor antagonists. Despite the prevalence of TD and its negative impact on patients' lives, there has been a lack of approved treatments and limited evidence from controlled trials of pharmacological treatment. Areas covered: PubMed was searched for English-language papers published during 2007-2016 using terms "tardive dyskinesia" or "drug-induced movement disorder", and "treatment". Studies evaluating pharmacological agents for the treatment of TD were selected...
July 20, 2017: Expert Review of Neurotherapeutics
https://www.readbyqxmd.com/read/28727343/-hypophosphatasia
#2
Eleni Tsiantouli, Andrea Trombetti, Serge Ferrari
Hypophosphatasia (HPP) is an inborn metabolic bone disorder caused by loss-of-function mutations in the gene encoding tissue nonspecific alkaline phosphatase (TNSALP). The adult form can be mistaken with common osteoporosis and/or present recurrent metatarsal fractures, skeletal and muscular pain. Subtrochanteric femoral pseudofractures resembling bisphosphonate-associated atypical femoral fractures can also be present, and Bps are therefore contraindicated in HPP. Early tooth loss and renal calcifications can orient towards the diagnosis...
April 19, 2017: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28716709/isolation-and-characterization-of-the-5-flanking-region-of-the-human-pdxk-gene
#3
ShuoHao Huang, ZhengQing Liu, ZhenQiao Ma, JianYun Zhang, LongQuan Huang
Pyridoxal kinase is a key enzyme for the biosynthesis of pyridoxal 5'-phosphate. Pyridoxal 5'-phosphate is the catalytically active form of vitamin B6, and acts as a cofactor in >140 different enzyme reactions. It is still unknown how the kinase synthesis is regulated in the cells, and nothing has been reported about the gene promoter. In the present study, based on the bioinformatics analysis of the 5'-flanking region of the human PDXK gene, we cloned the promoter region by PCR. Through the construction of a series of luciferase expression vectors containing the human PDXK promoter region, we characterized the promoter in terms of its structure and function...
July 14, 2017: Gene
https://www.readbyqxmd.com/read/28716455/the-vitamin-b6-paradox-supplementation-with-high-concentrations-of-pyridoxine-leads-to-decreased-vitamin-b6-function
#4
Misha F Vrolijk, Antoon Opperhuizen, Eugène H J M Jansen, Geja J Hageman, Aalt Bast, Guido R M M Haenen
Vitamin B6 is a water-soluble vitamin that functions as a coenzyme in many reactions involved in amino acid, carbohydrates and lipid metabolism. Since 2014, >50 cases of sensory neuronal pain due to vitamin B6 supplementation were reported. Up to now, the mechanism of this toxicity is enigmatic and the contribution of the various B6 vitamers to this toxicity is largely unknown. In the present study, the neurotoxicity of the different forms of vitamin B6 is tested on SHSY5Y and CaCo-2 cells. Cells were exposed to pyridoxine, pyridoxamine, pyridoxal, pyridoxal-5-phosphate or pyridoxamine-5-phosphate for 24h, after which cell viability was measured using the MTT assay...
July 14, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28710938/lack-of-effects-of-a-sobering-product-eezup-on-the-blood-ethanol-and-congener-alcohol-concentration
#5
Cora Wunder, Sarah Hain, Sarah C Koelzer, Alexander Paulke, Marcel A Verhoff, Stefan W Toennes
INTRODUCTION: The lifestyle product 'Eezup!' appeared on the German market and promised to normalize energy metabolism. Among vitamins (B1, B2, B6, C, E and zinc), rice protein and fructose the addition of alcohol dehydrogenase and catalase enzymes is a novel approach. The product was advertised as capable of boosting the rate of alcohol elimination. METHODS: Seventeen subjects (11 men, 6 women, 19-58 years old), participated in a two-way crossover drinking study...
June 28, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28698672/metabolic-effects-of-clenbuterol-and-salbutamol-on-pork-meat-studied-using-internal-extractive-electrospray-ionization-mass-spectrometry
#6
Haiyan Lu, Hua Zhang, Tenggao Zhu, Yipo Xiao, Shaoxian Xie, Haiwei Gu, Meng Cui, Liping Luo
Direct mass spectrometry analysis of metabolic effects of clenbuterol and salbutamol on pork quality at the molecular level is incredibly beneficial for food regulations, public health and the development of new anti-obesity drugs. With internal extractive electrospray ionization mass spectrometry (iEESI-MS), nutrients including creatine, amino acids, L-carnitine, vitamin B6, carnosine and phosphatidylcholines in pork tissue were identified, without sample pretreatment, using collision-induced dissociation (CID) experiments and by comparison with authentic compounds...
July 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28697391/nutrients-in-one-carbon-metabolism-and-urinary-arsenic-methylation-in-the-national-health-and-nutrition-examination-survey-nhanes-2003-2004
#7
Margaret Kurzius-Spencer, Vanessa da Silva, Cynthia A Thomson, Vern Hartz, Chiu-Hsieh Hsu, Jefferey L Burgess, Mary Kay O'Rourke, Robin B Harris
Exposure to inorganic arsenic (inAs), a potent toxicant, occurs primarily through ingestion of food and water. The efficiency with which it is methylated to mono and dimethyl arsenicals (MMA and DMA) affects toxicity. Folate, vitamins B12 and B6 are required for 1C metabolism, and studies have found that higher levels of these nutrients increase methylation capacity and are associated with protection against adverse health effects from inAs, especially in undernourished populations. Our aim was to determine whether 1C-related nutrients are associated with greater inAs methylation capacity in a general population sample with overall adequate nutrition and low levels of As exposure...
July 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28689805/the-importance-of-folate-vitamins-b6-and-b12-for-the-lowering-of-homocysteine-concentrations-for-patients-with-recurrent-pregnancy-loss-and-mthfr-mutations
#8
Danielius Serapinas, Evelina Boreikaite, Agne Bartkeviciute, Rita Bandzeviciene, Mindaugas Silkunas, Daiva Bartkeviciene
In patients with MTHFR (methylenetetrahydrofolate reductase) mutations and hyperhomocysteinemia, recurrent pregnancy loss is a frequent feature. The aim of the study was to evaluate the impact of folic acid, vitamins B6 and B12 supplementation for the lowering of total homocysteine concentrations and pregnancy. 16 patients who had had 3 or more miscarriages and MTHFR mutations were used in the study. They received methylfolate (5mg/day), vitamin B6 (50mg/day) and vitamin B12 (1mg/week). Supplementation induced a decrease in homocysteine from 19...
July 6, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28686246/an-inhibition-mechanism-of-dihydromyricetin-on-tyrosinase-and-the-joint-effects-of-vitamins-b6-d3-or-e
#9
Meihui Fan, Guowen Zhang, Junhui Pan, Deming Gong
Dihydromyricetin (DMY), a natural flavonoid, was found to effectively inhibit tyrosinase activity in a mixed-type manner with an IC50 value of (3.66 ± 0.14) × 10(-5) mol L(-1). DMY combined with the dietary vitamin D3 at lower concentrations exhibited a synergistic effect on the inhibition of tyrosinase. The formation of a DMY-tyrosinase complex led to fluorescence quenching and conformational changes of tyrosinase, which was driven mainly by hydrophobic interactions and hydrogen bonds. The molecular simulation further found that DMY inserted into the active pocket of tyrosinase interacted with amino acid residues Tyr78, His85, and Ala323, occupying the catalytic center of tyrosinase to hinder entrance of the substrate, leading to the inhibition of tyrosinase...
July 19, 2017: Food & Function
https://www.readbyqxmd.com/read/28674784/vitamin-b6-intake-and-the-risk-of-incident-kidney-stones
#10
Pietro Manuel Ferraro, Eric N Taylor, Giovanni Gambaro, Gary C Curhan
Higher vitamin B6 intake might reduce urinary excretion of oxalate, one of the major determinants of risk for calcium oxalate kidney stones. Previous studies investigating the association between intake of vitamin B6 and risk of stones found conflicting results. We sought to investigate the association in three large prospective cohorts. We prospectively examined the association in the Health Professionals Follow-up Study (HPFS; n = 42,919 men), Nurses' Health Study I (NHS I; n = 60,003 older women), and Nurses' Health Study II (NHS II; n = 90,629 younger women)...
July 3, 2017: Urolithiasis
https://www.readbyqxmd.com/read/28672791/risk-of-deficiency-in-multiple-concurrent-micronutrients-in-children-and-adults-in-the-united-states
#11
Julia K Bird, Rachel A Murphy, Eric D Ciappio, Michael I McBurney
Certain population sub-groups in the United States are vulnerable to micronutrient malnutrition. Nationally representative data from the National Health and Nutrition Examination Survey (NHANES) describing the biochemical status of vitamins A, B6, B12, C, D, E, folate, and anemia, were aggregated to determine the overall risk of multiple concurrent deficiencies in U.S. children and adults (n = 15,030) aged >9 years. The prevalence of deficiency risk according to socio-demographic, life-stage, dietary supplement use, and dietary adequacy categories was investigated...
June 24, 2017: Nutrients
https://www.readbyqxmd.com/read/28671236/vitamin-b-supplementation-what-s-the-right-choice-for-your-patients
#12
Laura G Leahy
As many patients turn to vitamins and supplements to enhance energy, relieve fatigue, or generally feel better, it is important to understand the connection between the B vitamins and psychiatric symptomatology. Vitamins B6, B8, and B12 have been shown not only to reduce psychiatric symptoms but also shorten the duration of illness. Vitamin B9, also known as folate or folic acid, has also been associated with psychiatric symptoms. However, when patients lack a specific genetic enzyme, which converts folate/folic acid to its most usable form, L-methylfolate, the neuroprotective and neuropsychiatric benefits are lost...
July 1, 2017: Journal of Psychosocial Nursing and Mental Health Services
https://www.readbyqxmd.com/read/28666510/homocystinuria-hc-and-neurofibromatosis-type-1-nf-1-an-unusual-presentation-in-a-child
#13
Muhammad Amer Yaqub, Muhammad Saim Khan, Asad Habib
Homocystinuria (HC) and neurofibromatosis type-1 (NF-1) are two genetically determined conditions with variable clinical manifestations. HC is a neurocutaneous autosomal recessive condition while NF-1 is an autosomal dominant phacomatosis. Both HC and NF-1 present with distinct systemic as well as ocular manifestations; however, vascular complications can occur in both the conditions. A9-year boy diagnosed case of HC along with other two siblings is reported here. He was referred by his paediatrician with decreased vision secondary to ectopia lentis...
November 2016: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28659447/unravelling-the-relationship-between-the-tsetse-fly-and-its-obligate-symbiont-wigglesworthia-transcriptomic-and-metabolomic-landscapes-reveal-highly-integrated-physiological-networks
#14
XiaoLi Bing, Geoffrey M Attardo, Aurelien Vigneron, Emre Aksoy, Francesca Scolari, Anna Malacrida, Brian L Weiss, Serap Aksoy
Insects with restricted diets rely on obligate microbes to fulfil nutritional requirements essential for biological function. Tsetse flies, vectors of African trypanosome parasites, feed exclusively on vertebrate blood and harbour the obligate endosymbiont Wigglesworthia glossinidia. Without Wigglesworthia, tsetse are unable to reproduce. These symbionts are sheltered within specialized cells (bacteriocytes) that form the midgut-associated bacteriome organ. To decipher the core functions of this symbiosis essential for tsetse's survival, we performed dual-RNA-seq analysis of the bacteriome, coupled with metabolomic analysis of bacteriome and haemolymph collected from normal and symbiont-cured (sterile) females...
June 28, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28649639/initial-assessment-of-the-nutritional-quality-of-the-space-food-system-over-three-years-of-ambient-storage
#15
Maya Cooper, Michele Perchonok, Grace L Douglas
Processed and prepackaged space food is the main source of nutrition for crew aboard the International Space Station, and likely will continue to be the main source of nutrition for future exploration missions. However, very little information is available on the nutritional stability of space foods. To better understand their nutritional stability, 24 micronutrients were measured in 109 space foods stored over 3 years at room temperature. Our analysis indicated that potassium, calcium, vitamin D, and vitamin K concentrations in the food may not be adequate to meet the recommended daily intake requirements even before storage...
2017: NPJ Microgravity
https://www.readbyqxmd.com/read/28646831/assessment-of-differences-in-nutrients-consumption-in-women-diagnosed-with-osteoporosis-as-compared-to-a-healthy-control-group
#16
Agata Wawrzyniak, Patrycja Klimczyk, Agnieszka Woźniak, Anna Anyżewska, Magdalena Leonkiewicz
Background: Osteoporosis is a condition that has been much more frequent for women, which is related to menopause and to their lower bone mineral density (BMD). Inappropriate diet is among the development factors of the disease. Objective: To assess differences in consumption of particular nutrients among women with and without osteoporosis diagnosed. Material and Methods: The study was conducted in 2013 in a group of 100 women aged 51-70, using a questionnaire, including a 24-hour recall related to a participant’s nutrients consumptions...
2017: Roczniki Państwowego Zakładu Higieny
https://www.readbyqxmd.com/read/28643618/heat-stabilised-rice-bran-consumption-by-colorectal-cancer-survivors-modulates-stool-metabolite-profiles-and-metabolic-networks-a-randomised-controlled-trial
#17
Dustin G Brown, Erica C Borresen, Regina J Brown, Elizabeth P Ryan
Rice bran (RB) consumption has been shown to reduce colorectal cancer (CRC) growth in mice and modify the human stool microbiome. Changes in host and microbial metabolism induced by RB consumption was hypothesised to modulate the stool metabolite profile in favour of promoting gut health and inhibiting CRC growth. The objective was to integrate gut microbial metabolite profiles and identify metabolic pathway networks for CRC chemoprevention using non-targeted metabolomics. In all, nineteen CRC survivors participated in a parallel randomised controlled dietary intervention trial that included daily consumption of study-provided foods with heat-stabilised RB (30 g/d) or no additional ingredient (control)...
May 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28631509/comparison-of-quince-with-vitamin-b6-for-treatment-of-nausea-and-vomiting-in-pregnancy-a-randomised-clinical-trial
#18
Effat Jafari-Dehkordi, Fataneh Hashem-Dabaghian, Fatemeh Aliasl, Jaleh Aliasl, Maryam Taghavi-Shirazi, Omid Sadeghpour, Farnaz Sohrabvand, Bagher Minaei, Roshanak Ghods
This trial was performed to compare quince (Cydonia oblonga) fruit with vitamin B6 on 76 pregnant women with a gestational age of 6-14 weeks and mild-to-moderate nausea and vomiting (NVP) (40 in the quince and 36 in the B6 group). The 'Pregnancy-Unique Quantification of Emesis' (PUQE-24) scale was used to examine the severity of NVP. The quince syrup (1 tablespoon/TDS) or vitamin B6 tablets (20 mg/TDS) were used as intervention for 1 week. The mean (±SD) age was 27.5 (±5.2) years. The score of the PUQE was decreased from 9...
June 20, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28629250/a-comparison-between-the-effects-of-ginger-pyridoxine-vitamin-b6-and-placebo-for-the-treatment-of-the-first-trimester-nausea-and-vomiting-of-pregnancy-nvp
#19
Fatemeh Sharifzadeh, Maryam Kashanian, Jalil Kouhpayehzadeh, Fatemeh Rezaian, Narges Sheikhansari, Nooshin Eshraghi
INTRODUCTION: Nausea and vomiting of pregnancy (NVP) are one of the most common complains of the early pregnancy period and are bothersome for pregnant women. Some prefer to use herbal medicine instead of chemical agents. OBJECTIVE: The purpose of the present study was to compare the effects of ginger, pyridoxine (vitamin B6) and placebo for the treatment of NVP. METHOD: The study was performed as a triple blind clinical trial on pregnant women suffering mild to moderate NVP between 6-16 weeks of pregnancy...
June 19, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28627191/-associations-between-insulin-resistance-and-three-b-vitamins-in-european-adolescents-the-helena-study
#20
Iris Iglesia, Marcela González-Gross, Inge Huybrechts, Pilar De Miguel-Etayo, Denes Molnar, Yannis Manios, Kurt Widhalm, Frédéric Gottrand, Anthony Kafatos, Asensión Marcos, Alejandro De la O Puerta, Catherine Leclercq, Stefaan De Henauw, Peter Stehle, Mathilde Kersting, Theodora Mouratidou, Luis Alberto Moreno
OBJECTIVE: To assess whether adolescents with high body mass index (BMI), or fat mass index (FMI), in combination with insulin resistance (assessed with the Homeostatic Model Assessment [HOMA] index), had also lower blood vitamin B6, folate and vitamin B12 concentrations. METHODS AND MATERIALS: Six hundred and fifteen adolescents from the Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) study, with data on B-vitamins (both intakes and status), and BMI, FMI, HOMA, were selected...
June 5, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
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