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micronutrient deficiencies

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https://www.readbyqxmd.com/read/29453498/seed-priming-with-iron-and-zinc-in-bread-wheat-effects-in-germination-mitosis-and-grain-yield
#1
Sara Reis, Ivo Pavia, Ana Carvalho, José Moutinho-Pereira, Carlos Correia, José Lima-Brito
Currently, the biofortification of crops like wheat with micronutrients such as iron (Fe) and zinc (Zn) is extremely important due to the deficiencies of these micronutrients in the human diet and in soils. Agronomic biofortification with Fe and Zn can be done through different exogenous strategies such as soil application, foliar spraying, and seed priming. However, the excess of these micronutrients can be detrimental to the plants. Therefore, in the last decade, a high number of studies focused on the evaluation of their phytotoxic effects to define the best strategies for biofortification of bread wheat...
February 16, 2018: Protoplasma
https://www.readbyqxmd.com/read/29453092/silicon-induced-fe-deficiency-affects-fe-mn-cu-and-zn-distribution-in-rice-oryza-sativa-l-growth-in-calcareous-conditions
#2
Sandra Carrasco-Gil, Sara Rodríguez-Menéndez, Beatriz Fernández, Rosario Pereiro, Vicenta de la Fuente, Lourdes Hernandez-Apaolaza
A protective effect by silicon in the amelioration of iron chlorosis has recently been proved for Strategy 1 species, at acidic pH. However in calcareous conditions, the Si effect on Fe acquisition and distribution is still unknown. In this work, the effect of Si on Fe, Mn, Cu and Zn distribution was studied in rice (Strategy 2 species) under Fe sufficiency and deficiency. Plants (+Si or-Si) were grown initially with Fe, and then Fe was removed from the nutrient solution. The plants were then analysed using a combined approach including LA-ICP-MS images for each element of interest, the analysis of the Fe and Si concentration at different cell layers of root and leaf cross sections by SEM-EDX, and determining the apoplastic Fe, total micronutrient concentration and oxidative stress indexes...
February 1, 2018: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/29451635/-serum-25-hydroxyvitamin-d-state-in-healthy-children-ten-year-minors-old-of-barranquilla-metropolitan-area
#3
Belle Marie Acosta-Bendek, Lucía Patricia Sánchez-Majana, Jennifer Fonseca-Galé, Rocío Posada-Valencia, Mylene Rodríguez-Leyton, Luz Adriana Sarmiento-Rubiano
OBJETIVE: To evaluate the serum 25-hydroxyvitamin D (25-OH-D) levels in healthy children under 10 years of the Barranquilla metropolitan area. MATERIALS AND METHODS: A descriptive cross-sectional study in which serum levels of 25-OH-D were analyzed in 360 healthy children from 2014 to 2015. RESULTS: The median value of 25-OH-D serum level was 32.23±8.56 ng/mL; 46.38% of children had vitamin D levels in the insufficient range (<30 ng/mL), while 3...
November 2017: Salud Pública de México
https://www.readbyqxmd.com/read/29449108/effect-of-nitrogen-and-zinc-fertilization-on-zinc-and-iron-bioavailability-and-chemical-speciation-in-maize-silage
#4
Djordje Grujcic, Thomas Hesselhøj Hansen, Søren Husted, Milanka Drinic, Bal Ram Singh
Agronomic biofortification is one of the main strategies for alleviation of micronutrient deficiencies in food and feed. The objective of this study was to investigate the effect of N supply on total concentration of Zn and Fe and their chemical species in the soluble extracts of maize silage grown under field conditions. Total concentrations of Zn, Fe, Cu, Mn, S and P were measured by flow-injection inductive coupled plasma (ICP) - mass spectrometer (MS). Soluble Fe and Zn were extracted and analyzed by size exclusion-inductively coupled plasma mass spectrometry...
February 11, 2018: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/29447473/impact-of-micronutrients-on-the-immune-response-of-animals
#5
Allen D Smith, Kiran S Panickar, Joseph F Urban, Harry D Dawson
Vitamins and minerals (micronutrients) play an important role in regulating and shaping an immune response. Deficiencies generally result in inadequate or dysregulated cellular activity and cytokine expression, thereby affecting the immune response. Decreased levels of natural killer, granulocyte, and phagocytic cell activity and T and B cell proliferation and trafficking are associated with inadequate levels of micronutrients, as well as increased susceptibility to various adverse health conditions, including inflammatory disorders, infection, and altered vaccine efficacy...
February 15, 2018: Annual Review of Animal Biosciences
https://www.readbyqxmd.com/read/29447378/trace-metal-metabolism-in-plants
#6
Elisa Andresen, Edgar Peiter, Hendrik Küpper
Many trace metals are essential micronutrients, but also potent toxins. Due to natural and anthropogenic causes, vastly different trace metal concentrations occur in various habitats, ranging from deficient to toxic levels. Therefore, one focus of plant research is on the response to trace metals in terms of uptake, transport, sequestration, speciation, physiological use, deficiency, toxicity, and detoxification. In this review, we cover most of these aspects for the essential micronutrients copper, iron, manganese, molybdenum, nickel, and zinc to provide a broader overview than found in other recent reviews, to cross-link aspects of knowledge in this very active research field that are often seen in a separated way...
February 13, 2018: Journal of Experimental Botany
https://www.readbyqxmd.com/read/29445423/an-update-on-vitamin-b12-related-gene-polymorphisms-and-b12-status
#7
REVIEW
S Surendran, A Adaikalakoteswari, P Saravanan, I A Shatwaan, J A Lovegrove, K S Vimaleswaran
Background: Vitamin B12 is an essential micronutrient in humans needed for health maintenance. Deficiency of vitamin B12 has been linked to dietary, environmental and genetic factors. Evidence for the genetic basis of vitamin B12 status is poorly understood. However, advancements in genomic techniques have increased the knowledge-base of the genetics of vitamin B12 status. Based on the candidate gene and genome-wide association (GWA) studies, associations between genetic loci in several genes involved in vitamin B12 metabolism have been identified...
2018: Genes & Nutrition
https://www.readbyqxmd.com/read/29445184/parental-micronutrient-deficiency-distorts-liver-dna-methylation-and-expression-of-lipid-genes-associated-with-a-fatty-liver-like-phenotype-in-offspring
#8
Kaja H Skjærven, Lars Martin Jakt, Jorge M O Fernandes, John Arne Dahl, Anne-Catrin Adam, Johanna Klughammer, Christoph Bock, Marit Espe
Micronutrient status of parents can affect long term health of their progeny. Around 2 billion humans are affected by chronic micronutrient deficiency. In this study we use zebrafish as a model system to examine morphological, molecular and epigenetic changes in mature offspring of parents that experienced a one-carbon (1-C) micronutrient deficiency. Zebrafish were fed a diet sufficient, or marginally deficient in 1-C nutrients (folate, vitamin B12, vitamin B6, methionine, choline), and then mated. Offspring livers underwent histological examination, RNA sequencing and genome-wide DNA methylation analysis...
February 14, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29438816/the-effect-of-tranexamic-acid-in-unilateral-and-bilateral-total-knee-arthroplasty-in-the-south-asian-population-a-retrospective-cohort-study
#9
Syed Hamza Mufarrih, Azeem Tariq Malik, Nada Qaisar Qureshi, Riaz Hussain Lakdawala, Umar Rabbani, Arif Ali, Shahryar Noordin
INTRODUCTION: Together with evidence of higher bleeding tendencies, the vulnerability of the South Asian population to anemia secondary to a higher prevalence of hemoglobinopathies and micronutrient deficiencies merits further exploration of the effects of tranexamic acid on this population. Additionally, limited access to self-care facilities and certain sociocultural beliefs and practices may not be conducive to a speedy recovery from surgical complications. The aim of this study is to investigate the effects of intraoperative administration of tranexamic acid during total knee arthroplasty when considering the South Asian population...
February 10, 2018: International Journal of Surgery
https://www.readbyqxmd.com/read/29438682/serum-and-dietary-zinc-and-copper-in-iranian-girls
#10
Kayhan Gonoodi, Alireza Moslem, Susan Darroudi, Mahsa Ahmadnezhad, Zahra Mazloum, Maryam Tayefi, Seyed Amir Tabatabaei Zadeh, Saeid Eslami, Mojtaba Shafiee, Zahra Khashayarmanesh, Hamideh Moalemzadeh Haghighi, Gordon A Ferns, Majid Ghayour-Mobarhan
OBJECTIVE: Girls with micronutrient deficiencies may have impaired growth and development, and furthermore this may also impact on their childbearing. We have investigated the relationship between serum zinc and copper concentrations, dietary zinc and copper intake and anthropometric and demographic parameters, and cardiovascular risk factors, in 408 girls living in northeastern Iran. METHODS: A total of 408 healthy girls, aged 12-18 years old, were included in our study...
February 10, 2018: Clinical Biochemistry
https://www.readbyqxmd.com/read/29437392/thermostability-of-the-pyl-pp2c-heterodimer-is-dependent-on-magnesium-in-silico-insights-into-the-link-between-heat-stress-response-and-magnesium-deficiency-in-plants
#11
Emel Timucin, Osman Ugur Sezerman
Magnesium deficiency increases susceptibility of plants towards heat stress. The correlation between magnesium levels and stress response has been studied at the physiological level, albeit the molecular explanation to this relationship remains elusive. Among diverse pathways implicated in the heat stress, the abscisic acid (ABA) signal modulates the heat stress response by magnesium dependent phosphatases (PP2Cs). Exclusively, sequestration of PP2Cs by ABA receptors (PYLs) in the heterodimer form activates the stress response through ABA responsive transcription factors...
February 13, 2018: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/29433786/incorporating-orange-fleshed-sweet-potato-into-the-food-system-as-a-strategy-for-improved-nutrition-the-context-of-south-africa
#12
Sunette M Laurie, Mieke Faber, Nicole Claasen
Orange-fleshed sweet potato (OFSP) is considered the single most successful example of biofortification of a staple crop, and presents a feasible option to address vitamin A deficiency. Though initially promoted as part of a crop-based approach focusing on production and consumption at household level, it evolved into small-scale commercial production, predominantly in Sub-Saharan Africa. This paper reviews OFSP initiatives in relation to the South African food environment and food supply systems, also identifying opportunities for scaling out OFSP in a situation where sweet potato is not eaten as a staple...
February 2018: Food Research International
https://www.readbyqxmd.com/read/29433755/vitamin-mineral-and-micronutrient-status-in-patients-with-classical-phenylketonuria
#13
Engin Kose, Nur Arslan
BACKGROUND & AIMS: Strict low-phenylalanine diet is associated with an increased risk of developing micronutrient deficiencies in patients with phenylketonuria (PKU). The primary objective of this single-center, case-control study was to assess the nutritional parameters of patients with PKU on strict low-phenylalanine diet without vitamin and mineral supplementation compared to a healthy control group. Secondary objective was to identify the adequacy of vitamin/mineral supplementation in phenylalanine-free (Phe-free) amino acid formulas...
February 9, 2018: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/29432056/consumption-of-soymilk-reduces-lipid-peroxidation-but-may-lower-micronutrient-status-in-apparently-healthy-individuals
#14
Anaelechi J Onuegbu, Japhet M Olisekodiaka, Sylvia E Irogue, Ubuo K Amah, John E Okwara, Olubunmi G Ayelagbe, Christian E Onah
Consumption of soy products is speculated to reduce the risk and progression of some disease conditions. The underlying mechanisms mediating this effect are uncertain, but the lowering of oxidative stress has been suggested. This study was aimed at investigating the effect of soymilk on antioxidant status and lipid peroxidation in apparently healthy individuals. Five hundred milliliters of soymilk was taken daily by each of 39 apparently healthy individuals for a period of 28 days. Two sets of blood samples (baseline and after 28 days of soymilk intake) were collected and assayed for total antioxidant capacity (TAC), malondialdehyde (MDA), superoxide dismutase (SOD), glutathione S-transferase (GST), manganese (Mn) and zinc (Zn) levels, using standard methods...
February 12, 2018: Journal of Medicinal Food
https://www.readbyqxmd.com/read/29423779/preferential-geographic-distribution-pattern-of-abiotic-stress-tolerant-rice
#15
REVIEW
A N M Rubaiyath Bin Rahman, Jianhua Zhang
Crop productivity and stability of the food system are threatened by climate change, mainly through the effects of predicted abiotic stresses. Despite extensive research on abiotic stress tolerance in the past decades, the successful translation of these research to fields/farmers is scarce. The impelling demand of climate resilient varieties, and the poor translation of research into the field despite the availability of high throughput technologies lead us to critically analyse a neglected aspect of current abiotic stress tolerance research...
February 8, 2018: Rice
https://www.readbyqxmd.com/read/29423368/multifaceted-interventions-to-reduce-acute-exacerbations-in-elderly-asthmatics
#16
So-Hee Lee, Woo-Jung Song, Heung-Woo Park, Min-Gyu Kang, Sae-Hoon Kim, Hye-Kyung Park, Sang-Heon Kim, Yong-Eun Kwon, Tae-Bum Kim, Byung-Jae Lee, Young-Koo Jee, Byung-Whui Choi, Sang-Heon Cho, Sun-Sin Kim
Background: Although many risk factors are known to be associated with poor asthma outcomes in the elderly, the literature on the effect of risk factor control on asthma outcomes in the elderly is very sparse. Objective: To evaluate the role of multifaceted interventions in reducing acute exacerbations in elderly asthmatics. Methods: A total of 100 subjects were randomly selected from our prospective cohort of elderly asthmatics aged 65 years or older and were provided multifaceted intervention for 1 year...
January 2018: Asia Pacific Allergy
https://www.readbyqxmd.com/read/29413099/early-pregnancy-maternal-trace-mineral-status-and-the-association-with-adverse-pregnancy-outcome-in-a-cohort-of-australian-women
#17
Rebecca L Wilson, Tina Bianco-Miotto, Shalem Y Leemaqz, Luke E Grzeskowiak, Gustaaf A Dekker, Claire T Roberts
Maternal micronutrient deficiencies in pregnancy can have profound effects on fetal development and pregnancy outcome. Plasma trace minerals including copper, zinc, selenium and iron have been shown to be extremely important in supporting reproduction. We sought to determine whether there is an association between maternal trace mineral status in early pregnancy and pregnancy complications using a prospective cohort study of 1065 pregnant Australian women who were recruited as part of the Screening for Pregnancy Endpoints (SCOPE) study in Adelaide...
March 2018: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/29413007/malnutrition-in-gastrointestinal-disorders-detection-and-nutritional-assessment
#18
REVIEW
Khursheed N Jeejeebhoy, Donald R Duerksen
All patients with significant gastrointestinal disease should be clinically assessed for protein calorie malnutrition by using the Subjective Global Assessment. Blood tests for anemia, electrolytes, calcium, phosphorus, magnesium, ferritin, vitamin B 12 , and folate should be considered for assessment of major micronutrients. Where malabsorption or inflammatory bowel disease is diagnosed, bone mineral density using dual beam x-ray absorptiometry, 25-OH vitamin D levels, and measurement of other vitamins and trace elements should be considered...
March 2018: Gastroenterology Clinics of North America
https://www.readbyqxmd.com/read/29406990/understanding-pluripotency-under-folic-acid-deficiency-using-embryonic-stem-cells-as-an-in-vitro-model
#19
Sowmya Kasulanati, Vijayalakshmi Venkatesan
Innumerable studies have been carried out by people to trace out those elements, find out the mechanisms that are vital to the maintenance of stemness. Amongst them, the one which is gaining importance in the recent past is the metabolism of stem cells, especially One carbon metabolism. Being associated directly or indirectly, with DNA and Histone methylation, One carbon metabolism has an important role to play as far as epigenetic regulation of stemness is concerned. Folic acid being a methyl donor, forms an important component of One Carbon metabolism, and thus its availability has a significant effect on the methylation reactions...
February 2018: Medical Hypotheses
https://www.readbyqxmd.com/read/29396249/optimisation-of-follow-up-after-metabolic-surgery
#20
REVIEW
Geltrude Mingrone, Stefan Bornstein, Carel W Le Roux
Bariatric surgery has many benefits beyond weight loss, including improved control of glycaemia, blood pressure, and dyslipidaemia; hence, such surgery has been rebranded as metabolic surgery. The operations are, unfortunately, also associated with major surgical and medical complications. The medical complications include gastro-oesophageal reflux disease, malnutrition, and metabolic complications deriving from vitamin and mineral malabsorption. The benefits of surgery can be optimised by implementing specific protocols before and after surgery...
January 29, 2018: Lancet Diabetes & Endocrinology
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