نتایج جستجو برای: cell membrane
تعداد نتایج: 1916806 فیلتر نتایج به سال:
background and objectives: virosomes are virus like particles (vlp) assembled in-vitro. influenza virosomes maintain the cell binding and membrane fusion activity of the wild type virus but are devoid of viral genetic material or internal proteins. influenza virosomes mimic the natural antigen presentation route of the influenza virus. materials and methods: virosomes were prepared by membrane ...
Cancer is characterized by abnormally excessive cell proliferation. Cell proliferation, the process by which a cell grows and divides to produce two daughter cells. Each of these daughter cells divides to produce two new cells, steps that are called cell cycle. Meanwhile, apoptosis is a highly regulated process of cell death, which is involved not only in the development of shape and morphogene...
Introduction: Recent studies have shown the presence of Cl- channels in heart and liver mitochondrial membranes. In this work, we have characterized the functional profile of a Cl- channel from rat brain mitochondria. Methods: After removing and homogenizing the rat brain, the supernatant was separately centrifuged in MSEdigitonin, H2O and Na2CO3 and mitochondrial inner membrane vesicles wer...
introduction: recent studies have shown the presence of cl- channels in heart and liver mitochondrial membranes. in this work, we have characterized the functional profile of a cl- channel from rat brain mitochondria. methods: after removing and homogenizing the rat brain, the supernatant was separately centrifuged in msedigitonin, h2o and na2co3 and mitochondrial inner membrane vesicles were o...
Output characteristics of fuel cells are affected by a large number of parameters such as geometry, dimensions, construction materials and conditions of supplying fluids. In this paper a mathematical model followed by a two-dimensional numerical approach has been presented to study the fuel cell parametrically. Effect of oxygen concentration at gas diffusion layer entrance, temperature and ...
Backgrond&Objective: The ability of mesenchymalstem cells (MSCs) differentiation into many cell types, as well as their ex vivo expansion potential, makes them as an attractive therapeutic tool for cell transplantation and tissue engineering. This project was designed to improve isolation culture and characterization of human amniotic membran-derivedMSSCS and human warton ,s jelly- derived MSCs...
Introduction: The major histocompatibility complex (MHC) is a group of cell surface proteins that are essential for recognizing foreign molecules in human and other mammals. The physiologic function of MHC molecules is the presentation of peptides to T cells. In this study, we evaluated the purification of a class II MHC molecule (HLA-DR) from a human Burkitt′s lymphoma cell line; Daudi...
The human amniotic membrane known as the innermost single epithelial-covered layer provides many applications such as applicable anti-inflammatory and anti-cancer effects. These immunomodulatory effects belongs to the epithelial cells, a type of epiblast-derived fetal stem cells which currently used for regenerative medicine and transplantation. These cells are collected by author-prepared faci...
Background and Objective: Alzheimer’s disease (AD) is a neurodegenerative disorder which is associated with extracellular accumulation of amyloid beta (Aβ) plaques. AD is accompanied by mitochondrial dysfunction and energy metabolism reduction. Fibroblast growth factor 21 (FGF21) is an endogenous polypeptide which its beneficial effects have been demonstrated on mitochondrial function, energy m...
aquaporins are integral membrane proteins from a larger family of major intrinsic proteins that formpores in the membrane of biological cells. aquaporins form tetramers in the cell membrane with eachmonomer acting as a water channel.in this research, the aqp4 tetramer was modeled from its pdbstructure file, then, we have performed the intraction of aquaporin4 in different temperatures (298k,300...
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