keyword
MENU ▼
Read by QxMD icon Read
search

calcium absorption

keyword
https://www.readbyqxmd.com/read/28108409/sol-gel-synthesis-and-characterizations-of-hybrid-chitosan-peg-calcium-silicate-nanocomposite-modified-with-zno-nps-and-e102-for-optical-and-antibacterial-applications
#1
Ahmed M Youssef, Amany M El-Nahrawy, Ali B Abou Hammad
Hybrid Chitosan/Poly ethylene glycol/calcium silicate (CS/PEG/calcium silicate) nanocomposite modified with different two types, zinc oxide nanoparticles (ZnO-NPs) and tartrazine dye (E102) were prepared by sol gel method and the characterization of their structure and biological properties were carried out in order to evaluate the possible use in optical and biomedical fields. The hybrid CS/PEG/calcium silicate complex formations have been established by X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopic analysis...
January 17, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28107527/effects-of-the-administration-of-25-oh-vitamin-d3-in-an-experimental-model-of-chronic-kidney-disease-in-animals-null-for-1-alpha-hydroxylase
#2
Noelia Torremadé, Milica Bozic, David Goltzman, Elvira Fernandez, José M Valdivielso
The final step in vitamin D activation is catalyzed by 1-alpha-hydroxylase (CYP27B1). Chronic kidney disease (CKD) is characterized by low levels of both 25(OH)D3 and 1,25(OH)2D3 provoking secondary hyperparathyroidism (2HPT). Therefore, treatments with active or native vitamin D compounds are common in CKD to restore 25(OH)D3 levels and also to decrease PTH. This study evaluates the dose of 25(OH)D3 that restores parathyroid hormone (PTH) and calcium levels in a model of CKD in CYP27B1-/- mice. Furthermore, we compare the safety and efficacy of the same dose in CYP27B1+/+ animals...
2017: PloS One
https://www.readbyqxmd.com/read/28100852/allergenicity-of-milk-of-different-animal-species-in-relation-to-human-milk
#3
Robert Pastuszka, Joanna Barłowska, Zygmunt Litwińczuk
Protein content in cow milk (with over 20 proteins, and peptides may also occur as a result of enzymatic hydrolysis) ranges from 2.5% to 4.2% and is about 1.5-2 times higher than in human milk. Its most important allergens are considered to be β-lactoglobulin (absent in human milk) and αs1-casein. The most similar in composition to human milk is horse and donkey milk. It contains considerably more whey proteins (35-50%) than cow milk (about 20%), and the concentration of the most allergenic casein fraction αs1 is 1...
December 31, 2016: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28096139/potential-health-benefits-of-combining-yogurt-and-fruits-based-on-their-probiotic-and-prebiotic-properties
#4
REVIEW
Melissa Anne Fernandez, André Marette
Fruit and yogurt have been identified individually as indicators of healthy dietary patterns. Fruits are relatively low in energy density and are an excellent source of antioxidants and prebiotic fibers and polyphenols, which can promote digestive health. Yogurt, on the other hand, is a nutrient-dense food that is a good source of dairy protein, calcium, magnesium, vitamin B-12, conjugated linoleic acid, and other key fatty acids. In addition, it contains beneficial bacterial cultures, making it a potential source of probiotics...
January 2017: Advances in Nutrition
https://www.readbyqxmd.com/read/28079789/the-impact-of-irrigating-fluid-absorption-on-blood-coagulation-in-patients-undergoing-transurethral-resection-of-the-prostate-a-prospective-observational-study-using-rotational-thromboelastometry
#5
Hyun-Jung Shin, Hyo-Seok Na, Young-Tae Jeon, Hee-Pyoung Park, Sun-Woo Nam, Jung-Won Hwang
Although endoscopic transurethral resection of the prostate (TURP) is a well-established procedure as a treatment for benign prostatic hyperplasia, its complications remain a concern. Among these, coagulopathy may be caused by the absorption of irrigating fluid. This study aimed to evaluate such phenomenon using a rotational thromboelastometry (ROTEM).A total of 20 patients undergoing TURP participated in this study. A mixture of 2.7% sorbitol-0.54% mannitol solution and 1% ethanol was used as an irrigating fluid, and fluid absorption was measured via the ethanol concentration in expired breath...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28073603/relationship-between-serum-selenium-sociodemographic-variables-other-trace-elements-and-lipid-profile-in-an-adult-spanish-population
#6
Montserrat González-Estecha, Irene Palazón-Bru, Andrés Bodas-Pinedo, Elena Trasobares, Antonio Palazón-Bru, Manuel Fuentes, M Ángeles Cuadrado-Cenzual, Elpidio Calvo-Manuel
INTRODUCTION: Several studies have shown an inverse relationship between selenium status and cardiovascular health, although epidemiologic evidence yielded by the randomized trials did not find a beneficial effect of selenium administration. The aim of this study was to analyze the association between serum selenium levels and lipid profile adjusted by age, sex and other associated factors among a general adult population in Spain. MATERIALS AND METHODS: We recruited 372 hospital employee volunteers (60 men and 312 women) with a mean age of 47 (SD: 10...
January 3, 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28070154/proposed-mechanisms-of-photobiomodulation-or-low-level-light-therapy
#7
Lucas Freitas de Freitas, Michael R Hamblin
Photobiomodulation (PBM) also known as low-level laser (or light) therapy (LLLT), has been known for almost 50 years but still has not gained widespread acceptance, largely due to uncertainty about the molecular, cellular, and tissular mechanisms of action. However, in recent years, much knowledge has been gained in this area, which will be summarized in this review. One of the most important chromophores is cytochrome c oxidase (unit IV in the mitochondrial respiratory chain), which contains both heme and copper centers and absorbs light into the near-infra-red region...
May 2016: IEEE Journal of Selected Topics in Quantum Electronics
https://www.readbyqxmd.com/read/28069089/dietary-calcium-impairs-tomato-lycopene-bioavailability-in-healthy-humans
#8
Patrick Borel, C Desmarchelier, U Dumont, C Halimi, D Lairon, D Page, J L Sébédio, C Buisson, C Buffière, D Rémond
Lycopene (LYC) bioavailability is relatively low and highly variable, because of the influence of several factors. Recent in vitro data have suggested that dietary Ca can impair LYC micellarisation, but there is no evidence whether this can lead to decreased LYC absorption efficiency in humans. Our objective was to assess whether a nutritional dose of Ca impairs dietary LYC bioavailability and to study the mechanism(s) involved. First, in a randomised, two-way cross-over study, ten healthy adults consumed either a test meal that provided 19-mg (all-E)-LYC from tomato paste or the same meal plus 500-mg calcium carbonate as a supplement...
December 2016: British Journal of Nutrition
https://www.readbyqxmd.com/read/28068581/vitamin-profiles-in-two-free-living-passerine-birds-under-a-metal-pollution-gradient-a-calcium-supplementation-experiment
#9
Sandra R Ruiz, Silvia Espín, Pablo Sánchez-Virosta, Juha-Pekka Salminen, Thomas M Lilley, Tapio Eeva
Vitamin and carotenoid deficiency may impair development in free-living vertebrates, because of the importance of these micronutrients to growth, antioxidant defense and calcium regulation. Micronutrient and calcium insufficiency can be intensified by metal pollution which can interfere with nutrient homeostasis or indirectly reduce food availability. Furthermore, absorption of dietary heavy metals is dependent on food calcium and vitamin levels. We investigated the effect of calcium on plasma vitamin and carotenoid profiles and how these affected growth and survival in two passerine birds with different calcium turnover living along a metal pollution gradient...
January 6, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28057169/difference-in-the-dissolution-behaviors-of-tablets-containing-polyvinylpolypyrrolidone-pvpp-depending-on-pharmaceutical-formulation-after-storage-under-high-temperature-and-humid-conditions
#10
Yoh Takekuma, Haruka Ishizaka, Masato Sumi, Yuki Sato, Mitsuru Sugawara
PURPOSE: Storage under high temperature and humid conditions has been reported to decrease the dissolution rate for some kinds of tablets containing polyvinylpolypyrrolidone (PVPP) as a disintegrant. The aim of this study was to elucidate the properties of pharmaceutical formulations with PVPP that cause a decrease in the dissolution rate after storage under high temperature and humid conditions by using model tablets with a simple composition. METHODS: Model tablets, which consisted of rosuvastatin calcium or 5 simple structure compounds, salicylic acid, 2-aminodiphenylmethane, 2-aminobiphenyl, 2-(p-tolyl)benzoic acid or 4...
October 2016: Journal of Pharmacy & Pharmaceutical Sciences: a Publication of the Canadian Society for Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28056419/chamomile-matricaria-recutita-l-decoction-extract-inhibits-in-vitro-intestinal-glucose-absorption-and-attenuates-high-fat-diet-induced-lipotoxicity-and-oxidative-stress
#11
Mohamed-Amine Jabri, Mohsen Sakly, Lamjed Marzouki, Hichem Sebai
The present study aimed to investigate the inhibitory effect of chamomile decoction extract (CDE) on intestinal glucose absorption as well as its protective role against high fat diet (HFD)-induced obesity and lipotoxicity in rats. We used the Ussing chamber system to investigate the effect of CDE on intestinal transport of glucose. Male Wistar rats were fed HFD for six weeks to provoke obesity. CDE (100mg/kg, b.w. p.o.) has been per orally administered to HFD fed rats. Ex vivo, we found that CDE significantly and dose-dependently increased intestinal absorption of glucose...
January 2, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28039410/effects-of-novel-muscarinic-m3-receptor-ligand-c1213-in-pulmonary-arterial-hypertension-models
#12
Mohamed Ahmed, Sonya VanPatten, Satyan Lakshminrusimha, Hardik Patel, Thomas R Coleman, Yousef Al-Abed
Pulmonary hypertension (PH) is a complex disease comprising a pathologic remodeling and thickening of the pulmonary vessels causing an after load on the right heart ventricle that can result in ventricular failure. Triggered by oxidative stress, episodes of hypoxia, and other undetermined causes, PH is associated with poor outcomes and a high rate of morbidity. In the neonate, this disease has a similar etiology but is further complicated by the transition to breathing after birth, which requires a reduction in vascular resistance...
December 2016: Physiological Reports
https://www.readbyqxmd.com/read/28036002/novel-peptide-with-specific-calcium-binding-capacity-from-schizochytrium-sp-protein-hydrolysates-and-calcium-bioavailability-in-caco-2-cells
#13
Xixi Cai, Jiaping Lin, Shaoyun Wang
Peptide-calcium can probably be a suitable supplement to improve calcium absorption in the human body. In this study, a specific peptide Phe-Tyr (FY) with calcium-binding capacity was purified from Schizochytrium sp. protein hydrolysates through gel filtration chromatography and reversed phase HPLC. The calcium-binding capacity of FY reached 128.77 ± 2.57 μg/mg. Results of ultraviolet spectroscopy, fluorescence spectroscopy, and infrared spectroscopy showed that carboxyl groups, amino groups, and amido groups were the major chelating sites...
December 27, 2016: Marine Drugs
https://www.readbyqxmd.com/read/28035182/chronic-nonmodulated-microwave-radiations-in-mice-produce-anxiety-like-and-depression-like-behaviours-and-calcium-and-no-related-biochemical-changes-in-the-brain
#14
Manoj Kumar, Surya P Singh, Chandra M Chaturvedi
The present study was aimed to investigate behavioural and biochemical effects of chronic exposure of amplitude modulated and non-modulated microwave radiation on laboratory mice. Chronic microwave exposures were executed with 2.45 GHz of either modulated (power density, 0.029 mW/cm(2); specific absorption rate, 0.019 W/Kg with sinusoidal modulation of 400 Hz) or nonmodulated continuous sinusoidal wave (power density, 0.033 mW/cm(2); specific absorption rate, 0.023 W/Kg) for 2 hrs daily for 1 month. Mice subjected to non-modulated microwave exposure had significantly increased acetylcholinesterase activity and increased intracellular calcium and nitric oxide levels in the cerebral cortex and hippocampus, and also had increased glucose and corticosterone levels in blood compared to control mice...
December 2016: Experimental Neurobiology
https://www.readbyqxmd.com/read/28032296/vitamin-d-musculoskeletal-health
#15
REVIEW
Harjit Pal Bhattoa, Jerzy Konstantynowicz, Natalia Laszcz, Marek Wojcik, Pawel Pludowski
Perhaps the role of Vitamin D supplementation has been most exhaustively studied in calcium absorption, skeletal wellbeing, muscular potency, balance and risk of falling. Nonetheless, new data has emerged and the recent research on sarcopenia makes the topic increasingly interesting. Given the socioeconomic burden of the musculoskeletal consequences of hypovitaminosis D it is vital to keep abreast with the latest literature in the field. The recommended Vitamin D supplementation dose should suffice to increase the serum 25 hydroxyvitamin D level to 30 ng/mL (75 nmol/L) and this level should be optimally maintained with a maintenance dose, particularly for those diagnosed with osteoporosis...
December 29, 2016: Reviews in Endocrine & Metabolic Disorders
https://www.readbyqxmd.com/read/28029201/water-dynamics-from-thz-spectroscopy-reveal-the-locus-of-a-liquid-liquid-binodal-limit-in-aqueous-caco3-solutions
#16
Federico Sebastiani, Stefan L P Wolf, Benjamin Born, Trung Quan Luong, Helmut Cölfen, Denis Gebauer, Martina Havenith
Many phenomena depend on CaCO3 nucleation where the role of water remains enigmatic. Changes in THz absorption during the early stages of CaCO3 nucleation evidence altered coupled motions of hydrated calcium and carbonate ions. The direct link between these changes and the continuous development of the ion activity product reveals the locus of a liquid-liquid binodal limit. The data strongly suggest that proto-structured amorphous CaCO3 forms through solidification of initially liquid precursors. Furthermore, polycarboxylates, which stabilize liquid precursors of CaCO3 , significantly enhance the kinetic stability of the metastable liquid-liquid state, but they do not affect the locus of the binodal limit...
January 9, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28027914/vitamin-d-and-intestinal-calcium-transport-after-bariatric-surgery
#17
REVIEW
Anne L Schafer
Bariatric surgery is a highly effective treatment for obesity, but it may have detrimental effects on the skeleton. Skeletal effects are multifactorial but mediated in part by nutrient malabsorption. While there is increasing interest in non-nutritional mechanisms such as changes in fat-derived and gut-derived hormones, nutritional factors are modifiable and thus represent potential opportunities to prevent and treat skeletal complications. This review begins with a discussion of normal intestinal calcium transport, including recent advances in our understanding of its regulation by vitamin D, and areas of continued uncertainty...
December 24, 2016: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28025964/bioequivalence-of-two-formulations-of-pregabalin-150-mg-capsules-under-fasting-conditions-in-healthy-male-subjects%C3%A2
#18
Hyun Lee, SeungHwan Lee, Sung-Vin Yim, Bo-Hyung Kim
BACKGROUND: Pregabalin binds to the α2δ auxiliary subunit of voltage-gated calcium channels, which are widely distributed throughout the central and peripheral nervous systems and modulate calcium-dependent neurotransmitter release. Pregabalin is indicated for the treatment of peripheral and central neuropathic pain, partial seizures with or without secondary generalization, and treatment of generalized anxiety disorder (GAD). OBJECTIVE: The purpose of this study was to assess the bioequivalence of two different formulations of pregabalin 150-mg capsules in healthy Korean male subjects under fasting conditions...
December 27, 2016: International Journal of Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28017946/-the-study-for-effect-of-running-on-bone
#19
Naomi Omi
Running-exercise is a weight-bearing-exercise. Power of an effect for running-exercise might be different by exercise intensity, running speed, and duration time. In general, running-exercise could be effective on bone. However, in case of Female Athlete Triad, under the condition of low energy availability running-exercise should not be effective positively for bone. Influence of appropriate mechanical stress, stimulate calcium absorption, and so on through running-exercise could be effective positively for bone...
2017: Clinical Calcium
https://www.readbyqxmd.com/read/28006081/consequences-of-ca-codoping-in-yalo3-ce-single-crystals
#20
Federico Moretti, Karine Hovhannesyan, Marina Derdzyan, Gregory A Bizarri, Edith D Bourret, Ashot G Petrosyan, Christophe Dujardin
The influence of Ca codoping on the optical absorption, photo-, radio-, and thermo-luminescence properties of YAlO3 :Ce (YAP:Ce) crystals has been studied for four different calcium concentrations ranging from 0 to 500 ppm. Ca codoping results in a partial oxidation of Ce(3+) into Ce(4+) , The luminescence time response under pulsed X-ray excitation of the Ce(3+) /Ce(4+) admixure clearly demonstrates the role of hole migration on both the rise time and the generally observed slow components. From an application point of view, Ca codoping significantly improves the timing performances, but the induced presence of Ce(4+) ions is also the cause of a reduction in scintillation efficiency...
December 22, 2016: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
keyword
keyword
66057
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"