Results 281 to 290 of about 434,984 (314)

Immobilization of active facilitated glucose transporters (GLUT-1) in supported biological membranes

Applied Biochemistry and Biotechnology, 1997
Membrane fragments or membrane proteins within a lipid mixture were immobilized over metal electrodes. This procedure has been developed to study biological membranes without interference from cell machinery. To obtain a smooth hydrophilic biomembrane support and a mode of binding of the membrane, either a crosslinked gel or an aromatic polyamine ...
C, Neumann-Spallart, F, Pittner, T, Schalkhammer   +2 more
openaire   +2 more sources

[Variability of biological glucose transport activity in human erythrocytes].

Comptes rendus des seances de la Societe de biologie et de ses filiales, 1992
Glucose transport activity was determined on erythrocytes from healthy adult and children. A large variability of values was found between each donor, but transport rate was significantly higher in erythrocytes from adults than those from children. In opposite, the same number of glucose transport sites was found on erythrocytes from adult and children,
J P, Feugeas, D, Néel, Y, Goussault, C, Derappe   +3 more
openaire   +1 more source

Stochastic modeling of active biological transport in inhomogeneous environments

2010
Diese Arbeit behandelt Systeme aktiv getriebener Teilchen auf gerichteten Pfaden in inhomogenen Umgebungen. Ein Beispiel ist Straßenverkehr. Hauptgesichtspunkt ist jedoch die Modellierung gerichteter kollektiver Bewegung von molekularen Motoren bei Proteinproduktion oder Transport auf intrazellulären Filamenten.
openaire   +1 more source

Protein kinase C activation increases transepithelial transport of biologically active insulin.

Cancer research, 1998
Protein kinase C activation leads to tight junctional leakiness and, consequently, to increased transepithelial (paracellular) solute flux across epithelial barriers. This leakiness is shown here to result in as much as a 20-fold increase in the transepithelial flux of insulin.
J M, Mullin, N, Ginanni, K V, Laughlin
openaire   +1 more source

ACTIVE TRANSPORT OF CATIONS ACROSS BIOLOGICAL MEMBRANES

Annals of the New York Academy of Sciences, 1974
W D, Stein, Y, Eilam, W R, Lieb
openaire   +2 more sources

Citrus aurantium L. Active Constituents, Biological Effects and Extraction Methods. An Updated Review

Molecules, 2021
Sawssan Maksoud, Roula M Abdel-Massih, Hiba N Rajha   +2 more
exaly  

Nanomedicines functionalized with anti-EGFR ligands for active targeting in cancer therapy: Biological strategy, design and quality control

International Journal of Pharmaceutics, 2021
Phuoc-Vinh Nguyen, Emilie Allard-Vannier, Igor Chourpa   +2 more
exaly  

Active transport across biological membranes : quantification and limits

Caco-2/MDCK assays are key tools for assessing compound permeability and active transport. The efflux ratio (ER) is often used to infer active efflux, but cannot be used as a direct measure of active transport. This work probes the viability of using intrinsic values to quantify efflux by extending existing models to incorporate aqueous boundary layers
openaire   +1 more source

Active components and biological functions of royal jelly

Journal of Functional Foods, 2021
Zixu Wang, Yaoxing Chen, Wenli Tian
exaly  

[Effect of botulinum toxin on the activity of transport ATPases in biological membranes].

Voprosy meditsinskoi khimii, 1985
Activity of transport ATPases was studied in erythrocyte membranes and synaptosomal fraction of cervical department of spinal cord obtained from rats in dynamics of botulinic C intoxication Na+, K+-ATPase was inhibited by the competitive type in the synaptosomal brain fraction at the preclinical period of intoxication and by the noncompetitive type at ...
N P, Chesnokova, G Iu, Kuliash
openaire   +1 more source