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Academic literature on the topic 'Calcium oxalate'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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Journal articles on the topic "Calcium oxalate"

Fufa, Tilahun Wondimu, Happiness Ogba Oselebe, Wosene Gebreselassie Abetw, and Charles Okechukwu Amadi. "Review of acridity in taro [Colocasia esculenta (L) Schott]: Its health and economic impact, and possible reduction mechanisms." Journal of Agricultural Science and Practice 6, no. 5 (2021): 156–64. http://dx.doi.org/10.31248/jasp2021.311.

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Taro is primarily grown for the corm, which is a staple food for millions of people. It is an annual herbaceous plant that belongs to the oxalate-rich food group. Oxalate is a naturally occurring plant metabolite that is present in all plant-derived human diets. The accumulation of oxalate by crops and pasture plants has a negative impact on the nutritional quality of foods and feeds. Oxalate is a poisonous organic acid that has a significant impact on the eating quality. Acridity causes swelling of the mouth and throat. Oxalate-rich foods also reduce calcium bioavailability and increase the r

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Vázquez-Calvo, Carmen, Monica Álvarez De Buergo, Rafael Fort, and Asuncion De Los Rios. "Detection of calcium phosphates in calcium oxalate patinas." European Journal of Mineralogy 24, no. 6 (2012): 1031–45. http://dx.doi.org/10.1127/0935-1221/2012/0024-2240.

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Firdous, Rafia, and Sumera Nazneen. "Comparative Analysis of Calcium Oxalate Accumulation in Indian Vegetables and Napier Grass Versus Spinach." Environmental Reports 1, no. 1 (2019): 10–16. http://dx.doi.org/10.51470/er.2019.1.1.10.

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The calcium and oxalate levels in 14 different plant species—including radish, beetroot, onion, and Napier grass—sold in local markets were examined. Analyzing the variations in the oxalate content of these 14 leafy and root vegetables gathered from different local markets in the Telangana state twin towns of Hyderabad and Secunderabad was also deemed relevant in this context. Numerous leafy and root vegetables, as well as grazing crops like Napier grass, create and collect oxalates. Despite the fact that oxalate can be a significant component of plants, significant details about its productio

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Savage, Geoffrey, and Leo Vanhanen. "Oxalate Contents of Raw, Boiled, Wok-Fried and Pesto and Juice Made from Fat Hen (Chenopodium album) Leaves." Foods 8, no. 1 (2018): 2. http://dx.doi.org/10.3390/foods8010002.

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The total, soluble, and insoluble oxalate contents of fresh and wok-fried fat hen (Chenopodium album) leaves were extracted and measured using High pressure liquid chromatography. The total oxalate content of the raw leaves was 1112.4 mg/100 g dry matter (DM), and the levels were significantly reduced by boiling (682.8 mg/100 g DM) or cooking the leaves in a wok (883.6 mg/100 g DM). The percentages of soluble oxalate contents in the total oxalates of the raw and boiled leaves were similar (mean 75%), while the proportion of soluble oxalate content in the wok-fried leaves was reduced to 53.4% o

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Maharani, Endang Tri Wahyuni, Jatmiko Susilo, and Arifiani Agustin Amalia. "In Vitro Inhibition Capacity in Ca Oxalate Formation by Lemon (Citrus Lemon) Juice." Journal Of Natural Sciences And Mathematics Research 1, no. 2 (2015): 41. http://dx.doi.org/10.21580/jnsmr.2015.1.2.1638.

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<p style="text-align: justify;">This research aims to determine the inhibition capacity of lemon juice (Citrus lemon) in the formation of calcium oxalate in a variety of concentrations of 5%, 7.5%, 10% which is then compared to pure citric acid. Lemon juice contains citric acid that can inhibit calcium oxalate’s formation. Inhibitory activity found in lemon juice is examined by observing its inhibition capacity towards the formation of calcium oxalate crystal. At the end of the treatment process the turbidity level is compared to citric acid acting as an inhibitor in the formation of cal

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Dijcker, J. C., E. A. Plantinga, J. van Baal, and W. H. Hendriks. "Influence of nutrition on feline calcium oxalate urolithiasis with emphasis on endogenous oxalate synthesis." Nutrition Research Reviews 24, no. 1 (2011): 96–110. http://dx.doi.org/10.1017/s0954422410000351.

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The prevalence of calcium oxalate (CaOx) uroliths detected in cats with lower urinary tract disease has shown a sharp increase over the last decades with a concomitant reciprocal decrease in the occurrence of struvite (magnesium ammonium phosphate) uroliths. CaOx stone-preventative diets are available nowadays, but seem to be marginally effective, as CaOx urolith recurrence occurs in patients fed these diets. In order to improve the preventative measures against CaOx urolithiasis, it is important to understand its aetiopathogenesis. The main research focus in CaOx formation in cats has been on

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Savage, Geoffrey, and Warinporn Klunklin. "Oxalates are Found in Many Different European and Asian Foods - Effects of Cooking and Processing." Journal of Food Research 7, no. 3 (2018): 76. http://dx.doi.org/10.5539/jfr.v7n3p76.

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Plant foods contain a surprising number of different toxins. A few well-known plants, including some grown in Thailand are known to contain high levels of oxalates however, some plants have not yet been fully investigated. A few plants have become fashionable to promote health because they contain antioxidants but some of these plants will contain oxalates as well. In many cases there is little published data to confirm the oxalates levels of these plants. If plant leaves are boiled before they are consumed this allows soluble oxalate to be leached out and discarded in the cooking water. This

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Frank-Kamenetskaya, Ivanyuk, Zelenskaya, et al. "Calcium Oxalates in Lichens on Surface of Apatite-Nepheline Ore (Kola Peninsula, Russia)." Minerals 9, no. 11 (2019): 656. http://dx.doi.org/10.3390/min9110656.

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The present work contributes to the essential questions on calcium oxalate formation under the influence of lithobiont community organisms. We have discovered calcium oxalates in lichen thalli on surfaces of apatite-nepheline rocks of southeastern and southwestern titanite-apatite ore fields of the Khibiny peralkaline massif (Kola Peninsula, NW Russia) for the first time; investigated biofilm calcium oxalates with different methods (X-ray powder diffraction, scanning electron microscopy, and EDX analysis) and discussed morphogenetic patterns of its formation using results of model experiments.

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Campfield, Thomas, Gregory Braden, Patrecia Flynn-Valone, and Nathaniel Clark. "Urinary Oxalate Excretion in Premature Infants: Effect of Human Milk Versus Formula Feeding." Pediatrics 94, no. 5 (1994): 674–78. http://dx.doi.org/10.1542/peds.94.5.674.

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Objective. To study urinary oxalate excretion in infants fed human milk versus formula, and to compare urinary calcium oxalate and calcium phosphate saturation in premature infants with term infants and adults. Methodology. We measured urinary oxalate-to-creatinine ratio and urinary oxalate concentration in 15 premature infants fed human milk compared to 16 formula-fed premature infants, and in eight human milk-fed term infants compared to 17 formula-fed term infants. We then studied urinary calcium oxalate and calcium phosphate saturations based on our observations of elevated urinary oxalate

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Messa, Piergiorgio, Martino Marangella, Luisa Paganin, et al. "Different Dietary Calcium Intake and Relative Supersaturation of Calcium Oxalate in the Urine of Patients Forming Renal Stones." Clinical Science 93, no. 3 (1997): 257–63. http://dx.doi.org/10.1042/cs0930257.

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1. Dietary calcium restriction, an efficient practice in reducing urinary calcium excretion, has been reported to induce either an increase or no change in oxalate excretion, questioning its use in hypercalciuric stone-forming patients. In addition, calcium restriction has been previously demonstrated to induce other urinary changes which might influence the relative supersaturation of calcium oxalate. So the overall effect of calcium deprivation on the relative supersaturation of calcium oxalate is unpredictable. 2. The aim of the study was to evaluate the effect of dietary calcium restrictio

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Dissertations / Theses on the topic "Calcium oxalate"

Chatterjee, Sabyasachi. "Calcite and Calcium Oxalate Sequestration of Heavy Metals." Diss., Temple University Libraries, 2009. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/50093.

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Engineering<br>Ph.D.<br>Heavy metals like cadmium, lead and zinc pose a significant threat to human health and environment. Several factors such as pH, EH, organic matter and clay content of the soil affect the bioavailability of such heavy metals in the environment. The presence of several naturally occurring minerals such as calcite (calcium carbonate, CaCO3) and calcium oxalate (CaC2O4.) in the environment significantly influence the fate and transport of some of the heavy metal cations. Sequestration of heavy metals such as cadmium (Cd) and zinc (Zn) from solution by calcite has been clear

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Reed, C. F. "Urinary inhibitors of calcium oxalate formation in cats." Thesis, University of Nottingham, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.275067.

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Gohel, Mayur Danny Indulal. "Urinary polyanions important in urinary calcium oxalate crystallization." Thesis, Hong Kong : University of Hong Kong, 1997. http://sunzi.lib.hku.hk/hkuto/record.jsp?B18736841.

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Henríquez, Valido Iris de la Trinidad. "Formation, transformation and inhibition of calcium oxalate nephroliths: in vitro studies and speciation by synchrotron radiation techniques." Doctoral thesis, Universitat Autònoma de Barcelona, 2021. http://hdl.handle.net/10803/671983.

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Nefrolitiasis es una enfermedad dolorosa causada por la formación de piedras en el riñón. Tiene una incidencia en torno al 5-12% y una recurrencia con una tasa recaída del 50% en 5 años y 80-90% en 10 años, generando un coste de millones de euros al sistema de salud. Las piedras del riñón se clasifican en siete grupos mayoritarios según las directrices del análisis morfoconstitutcional, donde las piedras de oxalato de calcio, considerando tanto la especie mono- (COM) como la dihidratada (COD), representan el 60-70%, siendo el grupo más prevalente. No obstante, debido a su baja estabilidad, COD

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Debroise, Théau. "Calcium Oxalate and Calcium Phosphate Biominerals : Formation and Stability studied by Molecular Dynamics." Electronic Thesis or Diss., Sorbonne université, 2019. https://theses.hal.science/tel-04059925.

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Cette thèse s’articule autour de la thématique de la biominéralisation, le processus par lequel les êtres vivants parviennent à orienter la précipitation de minéraux présents dans leur environnement pour confectionner des matériaux utiles à la survie de l’espèce considérée. La biominéralisation est un phénomène extrêmement complexe mettant en jeu des régulations génétiques et l’implication de protéines permettant d’enclencher la minéralisation, à des localisations bien précises. Il arrive cependant que celle-ci échappe au contrôle de l’organisme vivant conduisant alors à diverses pathologies.

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Walton, Rachel C. "Urinary proteins and their role in calcium oxalate crystallisation." Thesis, University of Manchester, 2003. http://www.manchester.ac.uk/escholar/uk-ac-man-scw:75546.

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Urinary stones are a common medical condition affecting over 10% of adults in the developed world. Whilst many different materials are found in kidney stones, the majority are dominated by deposits of calcium oxalate (CaOx). In addition to the mineral phases, urinary calculi also contain macromolecules. It has been shown that many of these, particularly the proteins, can inhibit CaOx crystallisation and are therefore widely assumed to be relevant to stone pathogenesis. More recently, it has been proposed that certain urinary proteins facilitate the prevention of stone formation through their s

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Tewolde, Tewolde Siele. "Crystallization of calcium oxalate on molecularly imprinted polymer surfaces." Master's thesis, University of Cape Town, 2004. http://hdl.handle.net/11427/6288.

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Bibliography: leaves 100-114.<br>Calcium oxalate (CaOx) is the most common component of human kidney stones. Heterogeneous nucleation is regarded as the key mechanism in this process. As such, crystallization of this substance has been studied in several different model systems. However, molecular imprinting has not been previously used in this field. In the present study, template crystals of calcium oxalate mono- and di-hydrate (COM and COD respectively) were used to imprint a copolymer of 6-methacrylamidohexanoic acid and divinylbenzene.

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McMulkin, Calum. "Crystallisation of Calcium Oxalate Solids in the Presence of Tetrazoles." Thesis, Curtin University, 2017. http://hdl.handle.net/20.500.11937/65993.

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A series of tetrazoles-containing molecules were investigated for their impact on calcium oxalate monohydrate (COM) crystallisation for the first time. COM is the main constituent of kidney stones, a common pathological mineral in humans. The tetrazole series was found to inhibit the morphology, crystal growth and nucleation of COM directly through selective adsorption or by a complexation mechanism, to varying degrees. Structural trends and which of the tetrazole molecules as crystal growth modifiers were confirmed.

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Allen, S. E. "Physico-chemical factors influencing calcium oxalate crystallisation in the urinary tract." Thesis, University College London (University of London), 2011. http://discovery.ucl.ac.uk/1310135/.

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The current treatment for urolithiasis is mostly limited to removing stones rather than preventing their formation. This research investigated a range of bisphosphonates for their inhibitory properties on the crystallisation of calcium oxalate - the commonest constituent of urinary calculi. Calcium oxalate crystals were generated in a well-recognised artificial urine solution (Robertson WG et al. J. Urol 1986; 135:1322-1326) using the Mixed Suspension Mixed Product Removal system. This provided a reliable, reproducible environment closely comparable to urine within the pelvi-calyceal system of

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Bramley, Allan Sidney. "A study of the growth and aggregation of calcium oxalate monohydrate /." Title page, contents and summary only, 1994. http://web4.library.adelaide.edu.au/theses/09PH/09phb815.pdf.

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Books on the topic "Calcium oxalate"

R, Khan Saeedur, ed. Calcium oxalate in biological systems. CRC Press, 1995.

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Heijnen, Wilhelmus Marinus Maria. Crystal growth and morphology of calcium oxalates and carbonates =: Kristalgroei en morfologie van calciumoxalaten en-carbonaten. Offsetdrukkerij Kanters, 1986.

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Alan, Rose G., ed. Oxalate metabolism in relation to urinary stone. Springer-Verlag, 1988.

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Khan, Saeed R. Calcium Oxalate in Biological Systems. Taylor & Francis Group, 2020.

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Khan, Saeed R. Calcium Oxalate in Biological Systems. Taylor & Francis Group, 2020.

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Khan, Saeed R. Calcium Oxalate in Biological Systems. Taylor & Francis Group, 2020.

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Khan, Saeedur R. Calcium Oxalate in Biological Systems. Taylor & Francis Group, 2020.

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Khan, Saeed R. Calcium Oxalate in Biological Systems. Taylor & Francis Group, 2020.

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Adair, James. Coagulation of Calcium Oxalate Monohydrate Suspensions. Dissertation Discovery Company, 2019.

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Adair, James. Coagulation of Calcium Oxalate Monohydrate Suspensions. Creative Media Partners, LLC, 2019.

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Book chapters on the topic "Calcium oxalate"

Rappold, Gudrun, John-John B. Schnog, Victor E. A. Gerdes, et al. "Urolithiasis, Calcium Oxalate." In Encyclopedia of Molecular Mechanisms of Disease. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-29676-8_268.

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Peters, Nils, Martin Dichgans, Sankar Surendran, et al. "Calcium Oxalate Urolithiasis." In Encyclopedia of Molecular Mechanisms of Disease. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-29676-8_9076.

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Nahman, N. Stanley. "Calcium Oxalate Nephrolithiasis." In Contemporary Internal Medicine. Springer US, 1989. http://dx.doi.org/10.1007/978-1-4615-6716-5_11.

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Brown, P., D. Ackermann, and B. Finlayson. "Calcium-Oxalate-Dihydrate Production." In Urolithiasis. Springer US, 1989. http://dx.doi.org/10.1007/978-1-4899-0873-5_53.

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Khan, Saeed R. "Calcium Oxalate Urolithiasis, Rat." In Urinary System. Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-642-80335-2_45.

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Khan, Saeed R., and James C. Woodard. "Calcium Oxalate Urolithiasis, Rat." In Urinary System. Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-96956-0_46.

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Wilson, D. M., R. R. Liedtke, and L. H. Smith. "Oxalate Clearances in Calcium Oxalate Stone Forming Patients." In Urolithiasis 2. Springer US, 1994. http://dx.doi.org/10.1007/978-1-4615-2556-1_45.

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Berland, Y., M. Olmer, M. Grandvuillemin, and R. Calaf. "Restricted Calcium Diet and Calcium Oxalate Urolithiasis." In Urolithiasis and Related Clinical Research. Springer US, 1985. http://dx.doi.org/10.1007/978-1-4684-7272-1_92.

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Conyers, R. A. J., A. M. Rofe, and W. Bais. "Nutrition and Calcium Oxalate Urolithiasis." In Urolithiasis and Related Clinical Research. Springer US, 1985. http://dx.doi.org/10.1007/978-1-4684-7272-1_16.

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Wu, K. J., X. Q. Li, Y. Dokko, et al. "Dissolution of Crystalline Calcium Oxalate." In Urolithiasis and Related Clinical Research. Springer US, 1985. http://dx.doi.org/10.1007/978-1-4684-7272-1_207.

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Conference papers on the topic "Calcium oxalate"

Ferguson, Robert J. "Predicting Calcium Oxalate Scale." In CORROSION 2002. NACE International, 2002. https://doi.org/10.5006/c2002-02399.

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Abstract Calcium oxalate scale is frequently encountered in the sugar refining and paper making processes. This paper outlines a simple index for the prediction of calcium oxalate scale. The development of a more refined index, based upon free ion concentrations, is also discussed.

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Zhao, Wangxuan, Haruto Kobashi, Verdad C. Agulto, et al. "Identification of calcium oxalate hydrates by terahertz spectroscopy." In JSAP-Optica Joint Symposia. Optica Publishing Group, 2024. https://doi.org/10.1364/jsapo.2024.18p_b2_7.

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Although kidney stones come in various types, approximately 80% are composed of either calcium oxalate or phosphate [1]. Calcium oxalate, the primary component of kidney stones, undergoes a phase transition from calcium oxalate dihydrate (COD) to calcium oxalate monohydrate (COM) during the stone formation process. Therefore, analyzing stone components is crucial for both diagnosis and subsequent treatment strategies for urolithiasis.

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Wilson, David, Matthew Toole, and Christine Beaulne. "Inhibition of Calcium Oxalate Scale in Aqueous Systems." In CORROSION 2009. NACE International, 2009. https://doi.org/10.5006/c2009-09174.

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Abstract Calcium oxalate scale is a common problem encountered in the bleaching sequence in pulp and paper manufacture, alcohol production and sugar evaporators. Downtime due to cleaning of the hard deposit is expensive and leads to loss of production. This study compares the activity of two maleic acid type polymers with two phosphinocarboxylic acids and a phosphonocarboxylic acid over a range of calcium oxalate saturation indices.

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Oner, Mualla, Emel Akyol, and M. Bora Akin. "Controlling of Calcium Oxalate Crystallization by Using Crosslinked Polymers." In CORROSION 2016. NACE International, 2016. https://doi.org/10.5006/c2016-07442.

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Abstract The formation of scales that is caused by calcium salt in heat exchanger or cooling tower proses is lead to serious problems such as pollution and decreasing of heat transfer. In this study, the effect of crosslinked polymers on the crystallization of calcium oxalate has been investigated in aqueous solutions. Vinylphosphonic acid (VPA) and ethylene glycol methacrylate phosphate (EGMP) with different N,N-Methylene bis acrylamide (MBA) contents have been synthesized for testing as additives for calcium oxalate inhibition. The effect of the polymer on the rate of crystallization of calc

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Gill, Jasbir S. "The Influence of Scale Inhibitors on Calcium Oxalate Precipitation." In CORROSION 1999. NACE International, 1999. https://doi.org/10.5006/c1999-99109.

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Abstract Precipitation of calcium oxalate is a common occurrence in mammalian urinary tract deposits and in various industrial processes such as paper making, brewery fermentation, sugar evaporation, and tannin concentration. Between pH 3.5 to 4.5 the driving force for calcium oxalate precipitation increases almost by three fold. It is a complicated process to predict both the nature of a deposit and at which stage of a muti-effect evaporator a particular mineral will deposit, as this depends on temperature, pH, total solids, and kinetics of mineralization. It is quite a challenge to inhibit c

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Kweik, Amannie, and Zahid Amjad. "Study on the Effect of Polymer Architecture in Inhibiting Calcium Oxalate Precipitation." In CORROSION 2019. NACE International, 2019. https://doi.org/10.5006/c2019-13014.

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Abstract In this study, the effect of polymer architecture (i.e., composition, functional group, monomer type, etc.) on calcium oxalate (CaOx) precipitation in aqueous solution was investigated using the spontaneous precipitation method. The polymers tested include: natural, bio-, and synthetic homo- and copolymers. The experimental results show that performance of polymers as CaOx inhibitors strongly depends on polymer architecture and type and charge of comonomers. In general, polymers containing carboxyl group perform better than co- and terpolymers containing hydrophobic and bulky comonome

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Sikes, C. Steven, Andrzej Wierzbicki, and J. D. Sallis. "Molecular Mechanisms of Control of Formation of Calcium Oxalate." In CORROSION 1995. NACE International, 1995. https://doi.org/10.5006/c1995-95473.

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Abstract The design of inhibitors of crystallization is aided by an understanding of the binding of the inhibitors at the molecular level and the influence of the binding on crystal morphology. Binding of citrate and phosphocitrate to calcium oxalate monohydrate (COM) crystals has been studied using scanning electron microscopy and molecular modeling. The COM crystal lattice presents two distinct surfaces that are not only calcium-rich but also have oxalate groups that are perpendicular to the liquid interface. This offers the best possibility for interaction with incoming anionic groups of an

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Sikes, C. Steven, and Andrzej Wierzbicki. "Stereospecific and Nonspecific Inhibition of Mineral Scale and Ice Formation." In CORROSION 1996. NACE International, 1996. https://doi.org/10.5006/c1996-96155.

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Abstract Inhibitors of crystallization may be generally effective for a variety of mineral scales or in some cases may be selected for a narrower range of scales. Such generality and specificity of action may be understood in terms of stereospecific and nonspecific mechanisms of scale inhibition. By combining atomic force microscopy, molecular modeling, scanning electron microscopy, and optical microscopy, both stereospecific and nonspecific interactions of some inhibitors with calcite, calcium oxalate monohydrate, and ice were examined. The crystals were chosen as representative of strong ion

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Wyman, D. P., R. D. Moll, J. D. Fox, F. J. Grad, and V. Mihalitsas. "A Convenient, Low Cost Laboratory Protocol for Screening Scale Inhibitors." In CORROSION 2002. NACE International, 2002. https://doi.org/10.5006/c2002-02405.

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Abstract A convenient protocol for screening the potential efficacy of scale inhibitors is described. All of the techniques used require relatively inexpensive equipment. Two types of scale are addressed in this paper, calcium carbonate and calcium oxalate, but the general procedures are expected to be applicable to inhibitor screening for others as well. The screening tests used include a turbidity/light scattering method that requires only a simple spectrophotometer. Another simple measurement was the hot surface deposition of scale formed in situ from hot solutions utilizing heating element

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Popescu, Sofia. "DIETARY FACTORS IN CALCIUM OXALATE UROLITHIASIS." In 13th SGEM GeoConference NANO, BIO AND GREEN � TECHNOLOGIES FOR A SUSTAINABLE FUTURE. Stef92 Technology, 2013. http://dx.doi.org/10.5593/sgem2013/bf6/s25.008.

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Reports on the topic "Calcium oxalate"

Hernandez-Sanchez, Bernadette A., and Bruce Andrew Tuttle. Oxalate co-precipitation synthesis of calcium zirconate and calcium titanate powders. Office of Scientific and Technical Information (OSTI), 2009. http://dx.doi.org/10.2172/984943.

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