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calcium absorption

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https://www.readbyqxmd.com/read/28231146/calcium-in-gluten-free-life-health-related-and-nutritional-implications
#1
REVIEW
Urszula Krupa-Kozak, Natalia Drabińska
Calcium deficiency and metabolic bone diseases are a frequent co-morbidity of coeliac disease (CD). Gluten-free diet (GFD) is the only effective treatment of CD. However, CD patients on the strict GFD consume less than the recommended amounts of calcium. In this review, the main etiological factors responsible for calcium deficiency in CD were presented. Additionally, the research on the application of calcium supplements in the gluten-free breadmaking was reviewed, and its effect on the technological and sensory properties of baked products was indicated...
July 15, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28227428/calcification-detection-of-abdominal-aorta-in-ct-images-and-3d-visualization-in-vr-devices
#2
Jose A Garcia-Berna, Juan M Sanchez-Gomez, Judith Hermanns, Gines Garcia-Mateos, Jose L Fernandez-Aleman, Jose A Garcia-Berna, Juan M Sanchez-Gomez, Judith Hermanns, Gines Garcia-Mateos, Jose L Fernandez-Aleman, Jose L Fernandez-Aleman, Jose A Garcia-Berna, Judith Hermanns, Juan M Sanchez-Gomez, Gines Garcia-Mateos
Automatic calcification detection in abdominal aorta consists of a set of computer vision techniques to quantify the amount of calcium that is found around this artery. Knowing that information, it is possible to perform statistical studies that relate vascular diseases with the presence of calcium in these structures. To facilitate the detection in CT images, a contrast is usually injected into the circulatory system of the patients to distinguish the aorta from other body tissues and organs. This contrast increases the absorption of X-rays by human blood, making it easier the measurement of calcifications...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225873/alert-for-bone-alterations-and-low-serum-concentrations-of-vitamin-d-in-patients-with-intestinal-inflammatory-disease
#3
Lorete Maria da Silva Kotze, Carolina Tabata Costa, Murilo Franco Cavassani, Renato Mitsunori Nisihara
BACKGROUND: Inflammatory bowel diseases (IBD), including Crohn's disease (CD) and ulcerative colitis (UC), are characterized by chronic inflammation of the intestine that can reduce the absorption of nutrients such as vitamin D and calcium. OBJECTIVE: To investigate bone alterations and serum levels of vitamin D in patients with IBD. METHOD: This was a cross-sectional study based on a review of medical records of patients from a private office in Curitiba, PR, Brazil...
January 1, 2017: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/28221141/-etiopathogenic-factors-of-the-different-types-of-urinary-litiasis
#4
Miguel Arrabal-Martín, María Carmen Cano-García, Miguel Ángel Arrabal-Polo, Alejandro Domínguez-Amillo, Nelson Canales-Casco, Javier de la Torre-Trillo, José Manuel Cózar-Olmo
In this review, we analyze the etiopathogenic principles of urinary lithiasis formation. In the kidney, calcifications that may cause renal lithiasis are produced as a consequence of processes that injury the urothelium at the papilla and Bellini's ducts. With the improvement of imaging techniques, mainly micro CT scan, it is possible to detect them and we may be able to anticipate to the formation of lithiasis. As we well know, there are different factors that influence the formation of the calculi depending on their composition...
January 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28217694/probiotics-for-prevention-of-urinary-stones
#5
John C Lieske
BACKGROUND: Urinary supersaturation is one key determinant of calcium oxalate (CaOx) urinary stone formation, and urinary excretions of oxalate and citrate are two key determinants. Each is influenced by gastrointestinal processes. METHODS: Open label and randomized placebo studies have examined the effect of oral probiotic preparations on urinary supersaturation and oxalate excretion. Cross sectional studies in humans have studied the association of Oxalobacter formigenes colonization status and urinary oxalate excretion and prevalence of urinary stones...
January 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28217521/association-of-dental-and-skeletal-fluorosis-with-calcium-intake-and-serum-vitamin-d-concentration-in-adolescents-from-a-region-endemic-for-fluorosis
#6
Prerna P Patel, Pinal A Patel, M Mughal Zulf, Bhrugu Yagnik, Neha Kajale, Rubina Mandlik, Vaman Khadilkar, Shashi A Chiplonkar, Supriya Phanse, Vivek Patwardhan, Priscilla Joshi, Ashish Patel, Anuradha V Khadilkar
CONTEXT: Fluorosis is controlled by the duration of fluoride exposure and calcium and Vitamin D nutrition status. AIM: To examine (a) prevalence of dental and skeletal fluorosis in adolescents from upper, middle, and lower socioeconomic strata (SES) and (b) association of fluorosis with calcium intake and Vitamin D status. SETTINGS AND DESIGN: A cross-sectional study conducted in 10-13.9 years apparently healthy adolescents (n = 90), from different SES of Patan (Gujarat, India)...
January 2017: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28217070/hyperkalemia-caused-by-rapid-red-cell-transfusion-and-the-potassium-absorption-filter
#7
Yasuhiko Imashuku, Hirotoshi Kitagawa, Takayoshi Mizuno, Yutaka Fukushima
We report a case of transient hyperkalemia during hysterectomy after cesarean section, due to preoperatively undiagnosed placenta accreta that caused unforeseen massive hemorrhage and required rapid red cell transfusion. Hyperkalemia-induced by rapid red cell transfusion is a well-known severe complication of transfusion; however, in patients with sudden massive hemorrhage, rapid red cell transfusion is necessary to save their life. In such cases, it is extremely important to monitor serum potassium levels...
January 2017: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/28216084/vitamin-d-supplementation-guidelines
#8
Pawel Pludowski, Michael F Holick, William B Grant, Jerzy Konstantynowicz, Mario R Mascarenhas, Afrozul Haq, Vladyslav Povoroznyuk, Nataliya Balatska, Ana Paula Barbosa, Tatiana Karonova, Ema Rudenka, Waldemar Misiorowski, Irina Zakharova, Alena Rudenka, Jacek Łukaszkiewicz, Ewa Marcinowska-Suchowierska, Natalia Łaszcz, Pawel Abramowicz, Harjit P Bhattoa, Sunil J Wimalawansa
Research carried out during the past two-decades extended the understanding of actions of vitamin D, from regulating calcium and phosphate absorption and bone metabolism to many pleiotropic actions in organs and tissues in the body. Most observational and ecological studies report association of higher serum 25-hydroxyvitamin D [25(OH)D] concentrations with improved outcomes for several chronic, communicable and non-communicable diseases. Consequently, numerous agencies and scientific organizations have developed recommendations for vitamin D supplementation and guidance on optimal serum 25(OH)D concentrations...
February 12, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28210913/dietary-and-commercialized-fructose-sweet-or-sour
#9
REVIEW
Aslihan Yerlikaya, Tuncay Dagel, Christopher King, Masanari Kubawara, Miguel A Lanaspa, Ana Andres-Hernando, Adrian Covic, Jacek Manitius, Alan A Sag, Mehmet Kanbay
Metabolic syndrome and diabetes are main health problems of modern life in the twenty-first century. Alarming ratios of global prevalence lead to conduct more and more researches about etiological factors and pathogenesis. Disease mechanism is elementary for advancing more efficient and practicable treatment methods. Concurrent increase in both fructose consumption with Western diet and metabolic syndrome has revealed fructose hypothesis that suggests fructose as one of etiological factor of metabolic syndrome (insulin resistance, central obesity, hypertension, etc...
February 16, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28199767/alkaliphilic-bacillus-species-show-potential-application-in-concrete-crack-repair-by-virtue-of-rapid-spore-production-and-germination-then-extracellular-calcite-formation
#10
T K Sharma, M Alazhari, A Heath, K Paine, R M Cooper
AIMS: Characterisation of alkaliphilic Bacillus species for spore production and germination and calcite formation as a prelude to investigate their potential in micro-crack remediation in concrete. METHODS AND RESULTS: Conditions, extent and timing of endospore production was determined by dark field light microscopy; germination induction and kinetics was assessed by combining reduction in optical density with formation of refractile bodies by phase contrast microscopy...
February 15, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28198976/role-of-candida-species-from-hiv-infected-children-in-enamel-caries-lesions-an-in-vitro-study
#11
Senda Charone, Maristela Barbosa Portela, Karol de Oliveira Martins, Rosangela Maria Soares, Gloria Fernanda Castro
Objectives: This study analyzed the capacity of Candida spp. from dental biofilm of HIV infected (HIV+) children to demineralize primary molar enamel in vitro by Transversal Microhardness (TMH), Polarized Light Microscopy (PLM) and the quantity of calcium ions (Ca2+) released from the enamel. Material and Methods: Candida spp. samples were isolated from the supragingival biofilm of HIV+ children. A hundred and forty (140) enamel blocks were randomly assigned to six groups: biofilm formed by C...
January 2017: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/28191026/supplementation-with-dairy-calcium-and-or-flaxseed-fibers-in-conjunction-with-orlistat-augments-fecal-fat-excretion-without-altering-ratings-of-gastrointestinal-comfort
#12
Mette Kristensen, Signe Rømer Juul, Karina Vejrum Sørensen, Janne Kunchel Lorenzen, Arne Astrup
BACKGROUND: Orlistat is a lipase inhibitor which reduced absorption of dietary fat by ~30% thereby inducing a weight loss; however, side effects occur as a consequence of increased colonic fat content. To test the hypothesis that most gastrointestinal side events induced by treatment with orlistat could be prevented/ameliorated by concomitant use of natural dietary components, flaxseed fiber (FF) and/or dairy calcium (Ca), binding liquid fats to more solid complexes. METHODS: A randomized controlled dietary intervention study...
2017: Nutrition & Metabolism
https://www.readbyqxmd.com/read/28190815/structural-analysis-of-strontium-in-human-teeth-treated-with-surface-pre-reacted-glass-ionomer-filler-eluate-by-using-extended-x-ray-absorption-fine-structure-analysis
#13
Motohiro Uo, Takahiro Wada, Kiyotaka Asakura
The bioactive effects of strontium released from surface pre-reacted glass-ionomer (S-PRG) fillers may aid in caries prevention. In this study, the local structure of strontium taken up by teeth was estimated by extended X-ray absorption fine structure analysis. Immersing teeth into S-PRG filler eluate increased the strontium content in enamel and dentin by more than 100 times. The local structure of strontium in enamel and dentin stored in distilled water was the same as that in synthetic strontium-containing hydroxyapatite (SrHAP)...
February 11, 2017: Dental Materials Journal
https://www.readbyqxmd.com/read/28184212/the-daily-consumption-of-cola-can-determine-hypocalcemia-a-case-report-of-postsurgical-hypoparathyroidism-related-hypocalcemia-refractory-to-supplemental-therapy-with-high-doses-of-oral-calcium
#14
Valentina Guarnotta, Serena Riela, Marina Massaro, Sebastiano Bonventre, Angela Inviati, Alessandro Ciresi, Giuseppe Pizzolanti, Salvatore Benvenga, Carla Giordano
The consumption of soft drinks is a crucial factor in determining persistent hypocalcemia. The aim of the study is to evaluate the biochemical mechanisms inducing hypocalcemia in a female patient with usual high consumption of cola drink and persistent hypocalcemia, who failed to respond to high doses of calcium and calcitriol supplementation. At baseline and after pentagastrin injection, gastric secretion (Gs) and duodenal secretion (Ds) samples were collected and calcium and total phosphorus (Ptot) concentrations were evaluated...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28182848/simultaneous-determination-of-8-b-vitamins-in-rat-intestinal-perfusate-to-identify-effects-of-osmotic-pressures-on-absorptions
#15
Xiaobo Wang, Jian Xiao, Hui Zhou, Ying Qiu, Hui Peng, Yangyang Sun, Jiwen Zhang, Wei Qian, Lixin Sun
A rapid and accurate HPLC-DAD method was developed and validated to simultaneously determine eight B-vitamins (VBs, namely thiamine, riboflavin, niacinamide, calcium pantothenic, pyridoxine, biotin, folic acid, and cyanocobalamin) and phenolsulfonphthalein in rat intestinal perfusate. Chromatography separation was achieved using an Inertsil ODS-3 column (250 × 4.6 mm i.d., 5 µm) at the temperature of 40 °C. Gradient elution mode was applied at the flow rate of 1.0 mL/min with the mobile phase of acetonitrile-30 mM K2 HPO4 (pH 5...
February 9, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28153426/factors-affecting-gastrointestinal-absorption-of-levothyroxine-a-review
#16
REVIEW
Marko Skelin, Tomo Lucijanić, Daniela Amidžić Klarić, Arnes Rešić, Miro Bakula, Ana-Marija Liberati-Čizmek, Hossein Gharib, Dario Rahelić
PURPOSE: Levothyroxine (LT4) is a drug with a narrow therapeutic index, applied in small amounts (micrograms), which makes interactions in the absorption phase clinically significant. The main aim of this article was to review and present the latest information on factors that affect the gastrointestinal absorption of this drug. METHODS: Relevant data were collected by using the MEDLINE, PubMed, EMBASE, Web of Science, Science Direct, and Scopus databases with the key words levothyroxine and absorption...
February 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28151917/chronic-diarrhea-associated-with-high-serum-level-of-immunoglobulin-a-and-diffuse-infiltration-of-plasma-cell-in-small-intestine-a-case-report
#17
Junwen Yang, Shuijiao Chen, Linlin Chen, Miao Ouyang, Fujun Li
RATIONALE: Chronic diarrhea in adult patients due to various causes is very common in clinic, but patient suffering with mal-absorption due to immunoproliferative small intestinal disease was rarely reported in China. PATIENT CONCERNS AND DIAGNOSES: A 35-year-old female presented with more than three years history of chronic diarrhea, rickets, high serum value of immunoglobulin A protein, and anemia. Bone marrow aspiration suggested that the patient was in a sideropenic and megalobastic anemia stage...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28150114/a-theoretical-and-experimental-study-of-calcium-iron-zinc-cadmium-and-sodium-ions-absorption-by-aspartame
#18
Karim Mahnam, Fatame Raisi
Aspartame (L-Aspartyl-L-phenylalanine methyl ester) is a sweet dipeptide used in some foods and beverages. Experimental studies show that aspartame causes osteoporosis and some illnesses, which are similar to those of copper and calcium deficiency. This raises the issue that aspartame in food may interact with cations and excrete them from the body. This study aimed to study aspartame interaction with calcium, zinc, iron, sodium, and cadmium ions via molecular dynamics simulation (MD) and spectroscopy. Following a 480-ns molecular dynamics simulation, it became clear that the aspartame is able to sequester Fe(2+), Ca(2+), Cd(2+), and Zn(2+) ions for a long time...
March 2017: Journal of Biological Physics
https://www.readbyqxmd.com/read/28149023/status-of-serum-calcium-vitamin-d-and-parathyroid-hormone-and-hematological-indices-among-lead-exposed-jewelry-workers-in-dhaka-bangladesh
#19
I Mazumdar, K Goswami, Md Suhrab Ali
Jewelry utilizes lead either directly or as a base metal. Costume jewelry requires lead before molding and plating the product with valuable metals. Therefore, such ornaments have a great potential to release heavy metals having health hazards. Also, jewelry makers engaged in preparing German silver, an alloy, apply lead in smelting, alloying, rolling and milling silver wires and pieces. The metal is taken up by blood, soft tissues and bone. The biological effects of lead are dependent upon the level and duration of exposure...
March 2017: Indian Journal of Clinical Biochemistry: IJCB
https://www.readbyqxmd.com/read/28148687/chemical-composition-but-not-specific-surface-area-affects-calcium-retention-of-nanostructured-calcium-compounds-in-growing-rats
#20
Lidija Posavec, Florentine M Hilty, Jeannine Baumgartner, Hylton Buntting, Monika Hilbe, Marlena Kruger, Frank Krumeich, Anne F Grobler, Michael B Zimmermann
BACKGROUND: Low dietary calcium intake and bioavailability may adversely affect bone health. Reducing the size of calcium compounds increases their specific surface area (SSA, expressed as m(2)/g) and may increase calcium dissolution and bioavailability. OBJECTIVE: We investigated the influence of SSA and chemical composition on the bioavailability of calcium and compared in vitro calcium dissolution with in vivo absorption. METHODS: Calcium dissolution was measured in 0...
February 1, 2017: Journal of Nutrition
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