نتایج جستجو برای: absorption physiological

تعداد نتایج: 387822  

Journal: :Clinical chemistry 1966
D O Rodgerson R E Helfer

The determination of serum iron has been shown to be feasible by the use of a modified single-beam atomic absorption spectrophotometer. The effect of interfering substances is eliminated by the use of standards prepared in physiological concentrations of protein. Average percentage recovery of added iron was 97.9 with an over-all coefficient of variation of 1.6%. Disparities between samples due...

2017
Mikel Azkune Leire Ruiz-Rubio Gotzon Aldabaldetreku Eneko Arrospide Leyre Pérez-Álvarez Iñaki Bikandi Joseba Zubía Jose Luis Vilas-Vilela

In this work we show an optical fiber evanescent wave absorption probe for glucose detection in different physiological media. High selectivity is achieved by functionalizing the surface of an only-core poly(methyl methacrylate) (PMMA) polymer optical fiber with phenilboronic groups, and enhanced sensitivity by using a U-shaped geometry. Employing a supercontinuum light source and a high-resolu...

2010
Shoko Miyazato Chie Nakagawa Yuka Kishimoto Hiroyuki Tagami Hiroshi Hara

BACKGROUND It has been reported that low-viscous and fermentable dietary fiber and nondigestible oligosaccharides enhance mineral absorption. Resistant maltodextrin, nonviscous, fermentable and soluble source of dietary fiber, has several physiological functions. However, influence of resistant maltodextrin on mineral absorption is unclear. AIM OF THE STUDY We conducted balance studies in rat...

Journal: :Gut 1992
J B Hunt A V Thillainayagam A F Salim S Carnaby E J Elliott M J Farthing

Controversy continues regarding the optimal composition of glucose electrolyte oral rehydration solutions for the treatment of acute diarrhoea. Four perfusion models (normal human jejunum, normal rat small intestine, cholera toxin treated secreting rat small intestine and rotavirus infected rat small intestine) have been developed and used to compare the efficacy of a hypotonic oral rehydration...

Journal: :The Journal of clinical investigation 2003
Michael A Russo Christoph Hogenauer Stephen W Coates Carol A Santa Ana Jack L Porter Randall L Rosenblatt Michael Emmett John S Fordtran

Due to genetic defects in apical membrane chloride channels, the cystic fibrosis (CF) intestine does not secrete chloride normally. Depressed chloride secretion leaves CF intestinal absorptive processes unopposed, which results in net fluid hyperabsorption, dehydration of intestinal contents, and a propensity to inspissated intestinal obstruction. This theory is based primarily on in vitro stud...

Journal: :Journal of lipid research 2004
R Jason Kirby Philip N Howles David Y Hui

This study compared the physiological process of cholesterol absorption in different strains of inbred mice with the goal of identifying novel mechanism(s) by which cholesterol absorption can be controlled. The rate and amount of cholesterol absorption were evaluated based on [14C]cholesterol appearance in plasma after feeding a meal containing [14C]cholesterol and by the percentage of [14C]-ch...

2009
Kwangmi Kim Lin Wang Inkyu Hwang

Lymphocyte function-associated antigen 1 (LFA-1), a member of beta2-integrin family, exerts multiple roles in host T cell immunity and has been identified as a useful drug-development target for inflammatory and autoimmune diseases. Applying the findings that primary resting T cells absorb nanometric membrane vesicles derived from antigen presenting cells (APC) via dual receptor/ligand interact...

Journal: :The Journal of Experimental Medicine 1954
Werner Straus Jean Oliver

1. The exaggeration of "hyaline droplet" formation observed in the renal lesion of epidemic hemorrhagic fever when treated with the infusion of large amounts of human serum albumin and the histochemical characteristics of the droplets so formed afford evidence towards their identification with the protein absorption droplets of experimental procedures and with those that occur in other renal di...

2013
Veronica Fiorito Simonetta Geninatti Crich Lorenzo Silengo Silvio Aime Fiorella Altruda Emanuela Tolosano

PURPOSE The body concentration of iron is regulated by a fine equilibrium between absorption and losses of iron. Iron can be absorbed from diet as inorganic iron or as heme. Hemopexin is an acute phase protein that limits iron access to microorganisms. Moreover, it is the plasma protein with the highest binding affinity for heme and thus it mediates heme-iron recycling. Considering its involvem...

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