نتایج جستجو برای: phospholipid
تعداد نتایج: 19924 فیلتر نتایج به سال:
Human placental anticoagulant protein-I (PAP-I) is a member of the lipocortin/calpactin/annexin family of Ca2+-dependent phospholipid binding proteins. PAP-I was labeled with fluorescein 5-isothiocyanate (1 mol/mol); this derivative had anticoagulant activity identical to the unlabeled protein and could be used to measure Ca2+-dependent binding to phospholipid vesicles through changes in fluore...
Tribological surgical adjuvants constitute a therapeutic discipline made possible by surgical advances in the treatment of damaged articular cartilage beyond palliative care. The purpose of this study is to analyze interactions between hyaluronic acid and phospholipid molecules, and the formation of geometric forms, that play a role in the facilitated lubrication of synovial joint organ systems...
To determine whether neurodegeneration in Alzheimer disease brain is associated with degradation of structural cell membrane molecules, we measured tissue levels of the major membrane phospholipids and their metabolites in three cortical areas from postmortem brains of Alzheimer disease patients and matched controls. Among phospholipids, there was a significant (P less than 0.05) decrease in ph...
Several questions regarding the production and functioning of autoantibodies (AAb) during malaria infection remain open. Here we provide an overview of studies conducted in our laboratory that shed some light on the questions of whether antiphospholipid antibodies (aPL) and other AAb associated with autoimmune diseases (AID) can recognize Plasmodia antigens and exert anti-parasite activity; and...
We have prepared a surface-grafted phospholipid monolayer by in situ polymerization carried out at the interface between a pre-assembled phospholipid monolayer and a methacryloyl-terminated substrate. The phospholipid containing an acryloyl moiety, 1-stearoyl-2-[12-(acryloyloxy)-dodecanoyll-sn-glycero-3-phosphocholine (acryloyl-PC), was pre-assembled by vesicle fusion onto methacryloyl-terminat...
Phospholipid polar head group and fatty acid composition were determined for plasma membrane enriched fractions from developing soybean root (Glycine max [L.] Merr. cult. Wells II). Plasma membrane vesicles were isolated from meristematic and mature sections of four-day-old dark grown soybean roots at pH 7.8 and in the presence of 5 millimolar ethylenediaminetetraacetate, 5 millimolar ethyleneg...
Recent advances in understanding the nature of cellular responses mediated by G protein-coupled receptor (GPCR) activation indicate that integration of the converging regulatory signals into functional cellular pathways requires epidermal growth factor receptor (EGFR) transactivation. In this study, we report that G protein-coupled β-adrenergic receptor activation leading to stimulation in gast...
The discovery of the hypertrophy of the rat brown adipose tissue which is induced by prolonged cold exposure [l] has been followed by many ultrastructural and biochemical studies upon this tissue which presents the peculiarity to contain a great number of mitochondrial [2]. Chronic cold exposure increases the mitochondrial diameter [3], the number of cristae [4] or the concentration of inner me...
The specific activity of the acyltransferases of smooth microsomes of rat liver rose threefold by 12 h after injection of phenobarbital, while the activity of the acyltransferases of the rough microsomes rose slightly to peak at 3-4 h, and subsequently fell. The latter rise was abolished by treatment of the animal with actinomycin D or puromycin, while that of the smooth microsomes was unaffect...
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