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phosphatidic acid/atrofia
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Elevation of oleate-activated phospholipase D activity during thymic atrophy.
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Various phospholipases are thought to be associated with the in vitro apoptosis of thymocytes. In the present study, the in vivo phospholipase D (PLD) activity of rat thymus was studied after whole-body X-irradiation or injection of dexamethasone (DEX). Using exogenous [14C]dipalmitoyl
Myelin lipids in Wallerian degeneration of the rabbit optic nerve.
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Wallerian degeneration of the rabbit optic nerve was produced by enucleation and the myelin output as well as its lipid composition were studied. In spite of the marked drop in the myelin mass, occurring very soon after enucleation the lipid composition of the corresponding myelin fractions did not
Regulation of phototransduction responsiveness and retinal degeneration by a phospholipase D-generated signaling lipid.
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Drosophila melanogaster phototransduction proceeds via a phospholipase C (PLC)-triggered cascade of phosphatidylinositol (PI) lipid modifications, many steps of which remain undefined. We describe the involvement of the lipid phosphatidic acid and the enzyme that generates it, phospholipase D (Pld),
Cloning of a phosphatidic acid-preferring phospholipase A1 from bovine testis.
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We report the molecular cloning and expression of a phosphatidic acid-preferring phospholipase A1 from bovine testis. The open reading frame encoded an 875-amino acid protein with a calculated molecular mass of 97,576 daltons and a pI of 5.61. The sequence included a region similar to a lipase
Cyclic phosphatidic acid relieves osteoarthritis symptoms.
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BACKGROUND
Cyclic phosphatidic acid (cPA) is a naturally occurring phospholipid mediator with a unique cyclic phosphate ring at the sn-2 and sn-3 positions of its glycerol backbone. Natural cPA and its chemically stabilized cPA derivative, 2-carba-cPA (2ccPA), inhibit chronic and acute inflammation,
Protective and therapeutic role of 2-carba-cyclic phosphatidic acid in demyelinating disease.
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Multiple sclerosis is a neuroinflammatory demyelinating and neurodegenerative disease of the central nervous system characterized by recurrent and progressive demyelination/remyelination cycles, neuroinflammation, oligodendrocyte loss, demyelination, and axonal degeneration. Cyclic phosphatidic acid
Brain phosphatidic acid and polyphosphoinositide formation in a broken cell preparation: regional distribution and the effect of age.
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The effect of age on phosphate incorporation into phosphatidylinositol 4-phosphate (PIP), phosphatidylinositol 4,5-bisphosphate (PIP2) and phosphatidic acid (PA) was studied. Lysed crude synaptosomal fractions of different brain regions of 3-month-old and 32-month-old Brown Norway rats were used.
Alteration of lipid composition of rat thymus during thymic atrophy by whole-body X-irradiation.
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OBJECTIVE
Thymic atrophy induced by irradiation is well known, but in vivo lipid metabolism during the atrophy has not been studied in detail. We determined the lipid composition of rat thymus during the progress of thymic atrophy induced by whole-body X-irradiation.
METHODS
The lipid analysis of
Dependence on the Lazaro phosphatidic acid phosphatase for the maximum light response.
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The Drosophila phototransduction cascade serves as a paradigm for characterizing the regulation of sensory signaling and TRP channels in vivo . Activation of these channels requires phospholipase C (PLC) and may depend on subsequent production of diacylglycerol (DAG) and downstream metabolites . DAG
Phosphatidic acid and diacylglycerol generation is regulated by insulin in cerebral cortex synaptosomes from adult and aged rats.
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Insulin receptor associated with the cerebral cortex (CC) has been shown to be involved in brain cognitive functions. Furthermore, deterioration of insulin signaling has been associated with age-related brain degeneration. We have reported previously that aging stimulates phospholipase
New roles for Smad signaling and phosphatidic acid in the regulation of skeletal muscle mass.
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Skeletal muscle is essential for normal bodily function and the loss of skeletal muscle (i.e. muscle atrophy/wasting) can have a major impact on mobility, whole-body metabolism, disease resistance, and quality of life. Thus, there is a clear need for the development of therapies that can prevent the
Hypoxic right ventricular cardiomyopathy. A morphological and pathogenetic study on the myocardial atrophy and fatty infiltration.
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The autopsy report of an asymptomatic, non familial cardiomyopathy with widespread fatty infiltration of the right ventricular wall in two alcoholic subjects, who were also heavy smokers and suffering from a serious laryngeal obstruction, led the Authors to investigate, on the basis of a thorough
Positive effects of soy lecithin-derived phosphatidylserine plus phosphatidic acid on memory, cognition, daily functioning, and mood in elderly patients with Alzheimer's disease and dementia.
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BACKGROUND
We report previously unpublished, early pilot studies performed with a brain-health food supplement containing a proprietary blend of 100 mg phosphatidylserine (PS) and 80 mg phosphatidic acid (PA) produced from soy lecithin.
METHODS
Serum analysis after single PS+PA ingestion was
A purple acid phosphatase, GmPAP33, participates in arbuscule degeneration during arbuscular mycorrhizal symbiosis in soybean.
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Arbuscules are the central structures of the symbiotic association between terrestrial plants and arbuscular mycorrhizal (AM) fungi. However, arbuscules are also ephemeral structures, and following development, these structures are soon digested and ultimately disappear. Currently, little is known
Diacylglycerol kinase zeta inhibits myocardial atrophy and restores cardiac dysfunction in streptozotocin-induced diabetes mellitus.
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BACKGROUND
Activation of the diacylglycerol (DAG)-protein kinase C (PKC) pathway has been implicated in the pathogenesis of a number of diabetic complications. Diacylglycerol kinase (DGK) converts DAG to phosphatidic acid and acts as an endogenous regulator of PKC activity. Akt/PKB is associated
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