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Silicon nutrition

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https://www.readbyqxmd.com/read/29755482/silicon-improves-chilling-tolerance-during-early-growth-of-maize-by-effects-on-micronutrient-homeostasis-and-hormonal-balances
#1
Narges Moradtalab, Markus Weinmann, Frank Walker, Birgit Höglinger, Uwe Ludewig, Guenter Neumann
Low soil temperature in spring is a major constraint for the cultivation of tropical and subtropical crops in temperate climates, associated with inhibition of root growth and activity, affecting early growth and frequently plant performance and final yield. This study was initiated to investigate the physiological base of cold-protective effects induced by supplementation with silicon (Si), widely recommended as a stress-protective mineral nutrient. Maize was used as a cold-sensitive model plant, exposed to chilling stress and low root-zone temperature (RZT) during early growth in a lab to field approach...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29630078/applications-of-zeolites-in-biotechnology-and-medicine-a-review
#2
REVIEW
Lucie Bacakova, Marta Vandrovcova, Ivana Kopova, Ivan Jirka
Zeolites are microporous tectosilicates of natural or synthetic origin, which have been extensively used in various technological applications, e.g. as catalysts and as molecular sieves, for separating and sorting various molecules, for water and air purification, including removal of radioactive contaminants, for harvesting waste heat and solar heat energy, for adsorption refrigeration, as detergents, etc. These applications of zeolites were typically related with their porous character, their high adsorption capacity, and their ion exchange properties...
April 9, 2018: Biomaterials Science
https://www.readbyqxmd.com/read/29597277/potential-of-silicon-amendment-for-improved-wheat-production
#3
Olga S Walsh, Sanaz Shafian, Jordan R McClintick-Chess, Kelli M Belmont, Steven M Blanscet
Many studies throughout the world have shown positive responses of various crops to silicon (Si) application in terms of plant health, nutrient uptake, yield, and quality. Although not considered an essential element for plant growth, Si has been recently recognized as a "beneficial substance" or "quasi-essential" due to its important role in plant nutrition, especially notable under stressed conditions. The goal of this study was to evaluate the effect of Si on wheat plant height, grain yield (GY), and grain protein content (GP)...
March 28, 2018: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/29579953/effects-of-the-gastric-juice-injection-pattern-and-contraction-frequency-on-the-digestibility-of-casein-powder-suspensions-in-an-in-vitro-dynamic-rat-stomach-made-with-a-3d-printed-model
#4
Xiaoai Zhang, Zhenkai Liao, Peng Wu, Liding Chen, Xiao Dong Chen
Previously, we have prepared a version of the dynamic in vitro rat stomach system (DIVRS-II or Biomimic Rat II). It was constructed and tested by showing similar digestive behaviors with those occurred in vivo. In the present work, a 3D-printed plastic mold was employed to create highly repeatable silicone rat stomach model. It has been seen to have shortened the time to handcraft a model like that used in DIVRS-II. The maximum mechanical force of the current stomach model generated by rolling extrusion is found to be more stable probably due to the more uniform wall thickness of the new model...
April 2018: Food Research International
https://www.readbyqxmd.com/read/29438453/the-role-of-silicon-in-plant-biology-a-paradigm-shift-in-research-approach
#5
Adam Frew, Leslie A Weston, Olivia L Reynolds, Geoff M Gurr
Background: Silicon (Si) is known to have numerous beneficial effects on plants, alleviating diverse forms of abiotic and biotic stress. Research on this topic has accelerated in recent years and revealed multiple effects of Si in a range of plant species. Available information regarding the impact of Si on plant defence, growth and development is fragmented, discipline-specific, and usually focused on downstream, distal phenomena rather than underlying effects. Accordingly, there is a growing need for studies that address fundamental metabolic and regulatory processes, thereby allowing greater unification and focus of current research across disciplines...
February 9, 2018: Annals of Botany
https://www.readbyqxmd.com/read/29226141/evaluation-of-immunosuppressive-therapy-use-for-tracheal-transplantation-with-trachea-mimetic-bellows-scaffolds-in-a-rabbit-model
#6
Jae Yeon Lee, Jeong Hun Park, Soo Jin Son, Mina Han, Gonhyung Kim, Seong Soo Kang, Seok Hwa Choi, Dong-Woo Cho
The objective of this study was to evaluate the use of immunosuppressive therapy with high-dose cyclosporine, high-dose azathioprine, and a combination of low-dose cyclosporine and azathioprine after tracheal reconstruction by using a trachea-mimetic graft of polycaprolactone (PCL) bellows-type scaffold in a rabbit model. Twenty-four healthy New Zealand white rabbits were used in the study. All underwent circumferential tracheal replacement using tissue-engineered tracheal graft, prepared from PCL bellows scaffold reinforced with silicone ring, collagen hydrogel, and human turbinate mesenchymal stromal cell (hTMSC) sheets...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29202269/opportunities-and-challenges-in-the-use-of-mineral-nutrition-for-minimizing-arsenic-toxicity-and-accumulation-in-rice-a-critical-review
#7
REVIEW
Saifullah, Saad Dahlawi, Asif Naeem, Muhammad Iqbal, Muhammad Ansar Farooq, Sadia Bibi, Zed Rengel
Growing rice on arsenic (As)-contaminated soil or irrigating with As-contaminated water leads to significant accumulation of As in grains. Moreover, rice accumulates more As into grains than other cereal crops. Thus, rice consumption has been identified as a major route of human exposure to As in many countries. Inorganic As species are carcinogenic and could pose a considerable health risk to humans even at low dietary concentration. Genotypic variation and concentration of nutrients such as iron, manganese, phosphate, sulfur and silicon are the two main factors that affect As accumulation in rice grains...
March 2018: Chemosphere
https://www.readbyqxmd.com/read/28851964/a-heart-coronary-arteries-structure-of-carbon-nanofibers-graphene-silicon-composite-anode-for-high-performance-lithium-ion-batteries
#8
Xiaoxin Ma, Guangmei Hou, Qing Ai, Lin Zhang, Pengchao Si, Jinkui Feng, Lijie Ci
In an animal body, coronary arteries cover around the whole heart and supply the necessary oxygen and nutrition so that the heart muscle can survive as well as can pump blood in and out very efficiently. Inspired by this, we have designed a novel heart-coronary arteries structured electrode by electrospinning carbon nanofibers to cover active anode graphene/silicon particles. Electrospun high conductive nanofibers serve as veins and arteries to enhance the electron transportation and improve the electrochemical properties of the active "heart" particles...
August 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28818756/interactions-between-aluminium-iron-and-silicon-in-cucumber-sativus-l-grown-under-acidic-conditions
#9
Nikolai P Bityutskii, Kirill L Yakkonen, Anastasiya I Petrova, Alexey L Shavarda
Aluminium (Al) is one of the major stressors for plants in acidic soils, negatively affecting plant growth and nutrient balances. Significant efforts have been undertaken to understand mechanisms of Al tolerance in plants. However, little is known of the relevance of iron (Fe) and silicon (Si) nutrition under Al stress conditions. The objectives of this study were to determine whether effects induced by Fe and Si are of importance for limitation of Al moving via xylem in plants (Cucumis sativus L.). Cucumber plants (cv...
August 4, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28805096/perioperative-nursing-of-tracheal-silicon-stent-implantation-in-infants-report-on-four-cases
#10
Deli Li, Xiaoqing Li, Xiuli Yan, Yue Gu, Xueqin Yang, Fanzheng Meng
AIMS: To report experience of perioperative nursing of tracheal silicon stent implantation in infants. METHODS: Retrospective analysis on the cases of tracheal silicon stent implantation in infants in our hospital. RESULTS AND CONCLUSIONS: Since middle of 2014, totally four tracheal silicon stent implantation were performed in our center. Of them, one case was recurrent tracheoesophageal fistula and the other three cases were traheomalacia...
August 31, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28552424/physicochemical-and-colloidal-aspects-of-food-matrix-effects-on-gastrointestinal-fate-of-ingested-inorganic-nanoparticles
#11
REVIEW
David Julian McClements, Hang Xiao, Philip Demokritou
Inorganic nanoparticles, such as titanium dioxide, silicon dioxide, iron oxide, zinc oxide, or silver nanoparticles, are added to some food products and food packaging materials to obtain specific functional attributes, such as lightening, powder flow, nutrition, or antimicrobial properties. These engineered nanomaterials (ENMs) all have dimensions below 100nm, but may still vary considerably in composition, morphology, charge, surface properties and aggregation state, which effects their gastrointestinal fate and potential toxicity...
August 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28539734/honey-and-health-a-review-of-recent-clinical-research
#12
REVIEW
Saeed Samarghandian, Tahereh Farkhondeh, Fariborz Samini
Honey is one of the most appreciated and valued natural products introduced to humankind since ancient times. Honey is used not only as a nutritional product but also in health described in traditional medicine and as an alternative treatment for clinical conditions ranging from wound healing to cancer treatment. The aim of this review is to emphasize the ability of honey and its multitude in medicinal aspects. Traditionally, honey is used in the treatment of eye diseases, bronchial asthma, throat infections, tuberculosis, thirst, hiccups, fatigue, dizziness, hepatitis, constipation, worm infestation, piles, eczema, healing of ulcers, and wounds and used as a nutritious supplement...
April 2017: Pharmacognosy Research
https://www.readbyqxmd.com/read/28504920/silicon-s-role-in-abiotic-and-biotic-plant-stresses
#13
REVIEW
Daniel Debona, Fabrício A Rodrigues, Lawrence E Datnoff
Silicon (Si) plays a pivotal role in the nutritional status of a wide variety of monocot and dicot plant species and helps them, whether directly or indirectly, counteract abiotic and/or biotic stresses. In general, plants with a high root or shoot Si concentration are less prone to pest attack and exhibit enhanced tolerance to abiotic stresses such as drought, low temperature, or metal toxicity. However, the most remarkable effect of Si is the reduction in the intensities of a number of seedborne, soilborne, and foliar diseases in many economically important crops that are caused by biotrophic, hemibiotrophic, and necrotrophic plant pathogens...
August 4, 2017: Annual Review of Phytopathology
https://www.readbyqxmd.com/read/28446627/silicon-alleviates-nonalcoholic-steatohepatitis-by-reducing-apoptosis-in-aged-wistar-rats-fed-a-high-saturated-fat-high-cholesterol-diet
#14
Alba Garcimartín, M Elvira López-Oliva, Jorge A Sántos-López, Rosa A García-Fernández, Adrián Macho-González, Sara Bastida, Juana Benedí, Francisco J Sánchez-Muniz
Background: Lipoapoptosis has been identified as a key event in the progression of nonalcoholic fatty liver disease (NAFLD), and hence, antiapoptotic agents have been recommended as a possible effective treatment for nonalcoholic steatohepatitis (NASH). Silicon, included in meat as a functional ingredient, improves lipoprotein profiles and liver antioxidant defenses in aged rats fed a high-saturated fat, high-cholesterol diet (HSHCD). However, to our knowledge, the antiapoptotic effect of this potential functional meat on the liver has never been tested...
June 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28167952/interactions-between-nitrogen-and-silicon-in-rice-and-their-effects-on-resistance-toward-the-brown-planthopper-nilaparvata-lugens
#15
Xiaoying Wu, Yaoguang Yu, Scott R Baerson, Yuanyuan Song, Guohua Liang, Chaohui Ding, Jinbo Niu, Zhiqiang Pan, Rensen Zeng
Nitrogen (N) and silicon (Si) are two important nutritional elements required for plant growth, and both impact host plant resistance toward insect herbivores. The interaction between the two elements may therefore play a significant role in determining host plant resistance. We investigated this interaction in rice (Oryza sativa L.) and its effect on resistance to the herbivore brown planthopper Nilaparvata lugens (BPH). Our results indicate that high-level (5.76 mM) N fertilization reduced Si accumulation in rice leaves, and furthermore, this decrease was likely due to decreased expression of Si transporters OsLsi1 and OsLsi2...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28094308/silicon-availability-modifies-nutrient-use-efficiency-and-content-c-n-p-stoichiometry-and-productivity-of-winter-wheat-triticum-aestivum-l
#16
Silke Neu, Jörg Schaller, E Gert Dudel
Silicon (Si) is known as beneficial element for graminaceous plants. The importance of Si for plant functioning of cereals was recently emphasized. However, about the effect of Si availability on biomass production, grain yield, nutrient status and nutrient use efficiency for wheat (Triticum aestivum L.), as one of the most important crop plants worldwide, less is known so far. Consequently, we assessed the effect of a broad range of supply levels of amorphous SiO2 on wheat plant performance. Our results revealed that Si is readily taken up and accumulated basically in aboveground vegetative organs...
January 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/27729011/environmental-risk-factors-for-dementia-a-systematic-review
#17
REVIEW
Lewis O J Killin, John M Starr, Ivy J Shiue, Tom C Russ
BACKGROUND: Dementia risk reduction is a major and growing public health priority. While certain modifiable risk factors for dementia have been identified, there remains a substantial proportion of unexplained risk. There is evidence that environmental risk factors may explain some of this risk. Thus, we present the first comprehensive systematic review of environmental risk factors for dementia. METHODS: We searched the PubMed and Web of Science databases from their inception to January 2016, bibliographies of review articles, and articles related to publically available environmental data...
October 12, 2016: BMC Geriatrics
https://www.readbyqxmd.com/read/27712030/effectiveness-of-pressure-ulcer-prevention-strategies-for-adult-patients-in-intensive-care-units-a-systematic-review
#18
REVIEW
Nahla Tayyib, Fiona Coyer
BACKGROUND: Pressure ulcers are associated with substantial health burden, but could be preventable. Hospital-acquired pressure ulcers (HAPUs) prevention has become a priority for all healthcare settings, as it is considered a sign of quality of care providing. Intensive care unit (ICU) patients are at higher risk for HAPUs development. Despite the availability of published prevention strategies, there is a little evidence about which strategies can be safely integrated into routine standard care and have an impact on HAPUs prevention...
December 2016: Worldviews on Evidence-based Nursing
https://www.readbyqxmd.com/read/27699650/integrated-in-vitro-approaches-to-assess-the-bioaccessibility-and-bioavailability-of-silicon-biofortified-leafy-vegetables-and-preliminary-effects-on-bone
#19
Massimiliano D'Imperio, Giacomina Brunetti, Isabella Gigante, Francesco Serio, Pietro Santamaria, Angela Cardinali, Silvia Colucci, Fiorenza Minervini
Food industries are increasingly oriented toward new foods to improve nutritional status and/or to combat nutritional deficiency diseases. In this context, silicon biofortification could be an innovative tool for obtaining new foods with possible positive effects on bone mineralization. In this paper, an alternative and quick in vitro approach was applied in order to evaluate the potential health-promoting effects of five silicon-biofortified leafy vegetables (tatsoi, mizuna, purslane, Swiss chard and chicory) on bone mineralization compared with a commercial silicon supplement...
March 2017: In Vitro Cellular & Developmental Biology. Animal
https://www.readbyqxmd.com/read/27556767/prevention-of-pressure-ulcers-in-the-acute-care-setting-new-innovations-and-technologies
#20
REVIEW
Jacquelynn P Tran, Jillian M McLaughlin, Ramon T Li, Linda G Phillips
BACKGROUND: Pressure ulcers (PUs) challenge many in the healthcare field requiring costly and complex care. PUs result from prolonged ischemia and subsequent soft-tissue injury caused by unrelieved pressure over a bony prominence. Proper risk assessment and implementation of prevention strategies for PUs are crucial to providing comprehensive care while reducing healthcare costs. The emphasis has led to the expansion of research in PU prevention technologies in the recent years. The aim of this review is to present an evidence-based summary of some of the new innovations in PU prevention...
September 2016: Plastic and Reconstructive Surgery
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