purpose: to report the early results of transplantation of autologous limbal stem cell cultivated on amniotic membrane in total limbal stem cell deficiency. methods: four eye of 4 patients with total unilateral stem cell deficiency secondary to severe chemical or thermal burn were included. stem cell deficiency was confirmed with impression cytology in all cases. under topical anesthesia, a sma...

Purpose: The purpose of this review is to describe computational models that have been developed for studying kidney function and howthese may be adapted study the eyes. Methods: We derive equations modeling solute andwater transport across epithelial cell membranes in kidney. These mass conservation, as well membrane via cotransporters, exchangers, primary active transport. Results: Wedescribe...

Epithelial cells express plasma-membrane polarity in order to meet functional requirements that are imposed by their interaction with different extracellular environments. Thus apical and basolateral membrane domains are distinguished that are separated by tight junctions in order to maintain the specific lipid and protein composition of each domain. In hepatic cells, the plasma membrane is als...

The present study was carried out to estimate genetic variability parameters for some traits such as pods per plant, cell membrane stability, one thousand kernel weight, flowering period, grain filling period, chlorophyll content, relative water content, leaf excised water content, seed per pod and pod length, in 16 winter rapeseed genotypes. Statistical analysis showed significant differences ...

the current epidemic of diabetes indicates the need of proper and effective medications that are limited in their potency to have many side effects. thus, introduction of alternative and complementary medicine is now in picture. the main objective of this study was to analyze the rate of glucose transport across cell membrane in yeast cells system in the presence of the ethanolic extract of bru...

Graphene exhibits fascinating prospects for preparing high-performance membranes with fast water transport, due to its low friction and extreme thinness. However, graphene-assembled membranes, each molecule passing through the membrane should bypass many graphene sheets, which lengthens molecular pathways increases mass transfer resistance. Herein, a nanomesh (GNM) is fabricated that inspired b...

Membrane processes are used in various felds such as the environment, agriculture and different industrial sectors. These clean techniques are often adopted for directed processes such as treatment, recovery, valorization and separation. In this review article, the theoretical principles and the different classifcations of liquid membranes, such as supported liquid membra...

Sodium glucose cotransporters (SGLTs) are located in the cell membrane of various epithelia that uptake or galactose and sodium into cell. Its founding member, SGLT1, represents a major pharmaceutically relevant target protein for development new antidiabetic drugs, addition to being oral rehydration therapy. Previous studies focused primarily on transport substrates ions, while our study focus...

Myelin membranes are sheet-like extensions of oligodendrocytes that can be considered membrane domains distinct from the cell's plasma membrane. Consistent with the polarized nature of oligodendrocytes, we demonstrate that transcytotic transport of the major myelin-resident protein proteolipid protein (PLP) is a key element in the mechanism of myelin assembly. Upon biosynthesis, PLP traffics to...

Phytohemagglutinin (PHA) or concanavalin A treatment of lymphocytes causes an increase in membrane permeability so that the leak rates of Na and K increase 1.5- to 2-fold. Active Na and K transport increase proportionately in response to the increased membrane permeability. We have examined the role of lymphocyte Na concentration in sustaining the increased Na and K transport observed after PHA...