نتایج جستجو برای: cellular lipids
تعداد نتایج: 478981 فیلتر نتایج به سال:
The complexity and dynamic nature of the “lipidome” of eukaryotic cells are increasingly apparent. Taking into account the diversity within many lipid classes created by variability in such factors as acyl chain substitutions, degree of desaturation, hydroxylation, and phosphorylation, the number of molecular species in eukaryotic cells exceeds one thousand. Such estimates of the diversity of t...
Microalgae biomass is considered a promising alternative feedstock for biodiesel production due to its high productivity of neutral lipids, especially under abiotic stress conditions. Among the unicellular microalgae that show this characteristic, Chlamydomonas reinhardtii appears as one most important model species with increased lipid In study, we C. cells cultivated mixotrophic condition sup...
Lipids play a variety of roles in biological systems. They are molecules that are insoluble in water and soluble in organic solvents. The diversity of lipids can be very high due to (a) the complexity of the hydrophobic acyl chains (i.e. carbon number and degree of unsaturation) and (b) the nature of the hydrophilic polar head group. Thus, over a thousand different lipid molecular species can b...
Novel phosphorylated dihydroceramide (PDHC) lipids produced by the periodontal pathogen Porphyromonas gingivalis include phosphoethanolamine (PE DHC) and phosphoglycerol dihydroceramides (PG DHC) lipids. These PDHC lipids mediate cellular effects through Toll-like receptor 2 (TLR2) including promotion of IL-6 secretion from dendritic cells and inhibition of osteoblast differentiation and functi...
Introduction: In the present study, various formulations of cationic liposomes were designed and prepared using different cationic lipids. It was performed to assess the physicochemical properties, miRNA loading ability and cellular toxicity rates of liposomes in order to use in gene therapy. Methods: Different cationic liposome formulations (F1-F4) containing various cationic lipids, DOTAP, D...
Cellular lipids are speculated to act as key intermediates in Hedgehog signal transduction, but their precise identity and function remain enigmatic. In an effort to identify such lipids, we pursued a Hedgehog pathway inhibitory activity that is particularly abundant in flagellar lipids of Chlamydomonas reinhardtii, resulting in the purification and identification of ergosterol endoperoxide, a ...
Lipids are a major component of cells and play a variety of roles in organisms. In general, they play a key role in the structural composition of membranes. Some lipids, such as sphingoglycolipids, however, are also mediators of different biological processes, including protein transport, regulation of cell growth, cellular morphogenesis, neuronal plasticity, and regulation of the immune respon...
In vivo determination of neutral lipids with Nile red fluorescence has been used as a rapid screening method for certain types of microalgae, but has been unsuccessful in others, particularly those with thick, rigid cell walls that prevent penetration of the fluorescence dye into the cell. To solve the problem, a microwave-assisted Nile red staining method for microalgal lipid determination was...
A series of metal-chelating lipid conjugates has been designed and synthesized. Each member of the series bears a 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA) macrocycle attached to the lipid head group, using short n-ethylene glycol (n-EG) spacers of varying length. Liposomes incorporating these lipids, chelated to Gd(3+), (64)Cu(2+), or (111)In(3+), and also incorporating f...
Lipids are produced, transported, and recognized by the concerted actions of numerous enzymes, binding proteins, and receptors. A comprehensive analysis of lipid molecules, "lipidomics," in the context of genomics and proteomics is crucial to understanding cellular physiology and pathology; consequently, lipid biology has become a major research target of the postgenomic revolution and systems ...
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