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cyclooxygenase/atrofija
Nuoroda įrašoma į mainų sritį
Puslapis 1 nuo 579 rezultatus
Expression of cyclooxygenase-2 in choroidal neovascular membranes from age-related macular degeneration patients.
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OBJECTIVE
The objective of this study was to investigate the expression of cyclooxygenase (COX)-2 in human choroidal neovascular membranes.
METHODS
Paraffin-embedded sections of choroidal neovascular membranes excised from 16 patients with wet age-related macular degeneration were used for this
Implications of corpus gastritis, atrophy and cyclooxygenase in the development of gastric erosions after curing Helicobacter pylori infection.
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BACKGROUND
Helicobacter pylori eradication decreases recurrence of peptic ulcers with marked improvement in histological inflammation, but gastric mucosal injuries may be developed even after eradication.
OBJECTIVE
To investigate the mechanisms responsible for the development of gastric erosions
Cyclooxygenase inhibition aggravates pulmonary hypertension and deteriorates gas exchange in canine pulmonary embolism.
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We examined the effects of cyclooxygenase inhibitors on pulmonary hemodynamics and gas exchange after experimental acute pulmonary embolism in 12 intact anesthetized dogs. Pulmonary hemodynamics were evaluated by pulmonary arterial pressure (Ppa)/cardiac output (Q) plots before and 60 min after
Mast cells in human testicular biopsies from patients with mixed atrophy: increased numbers, heterogeneity, and expression of cyclooxygenase 2 and prostaglandin D2 synthase.
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OBJECTIVE
To determine intratesticular abundance and distribution of tryptase-positive mast cells (MCs) and to examine the expression of key enzymes of prostaglandin (PG) synthesis, cyclooxygenase 2 (COX2), and PGD2 synthase in the testes of men with mixed atrophy (MA) syndrome and in normal
Prevention of postasphyxial increase in lipid peroxides and retinal function deterioration in the newborn pig by inhibition of cyclooxygenase activity and free radical generation.
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Free radicals have been implicated in the development of injury to the immature retina. Asphyxia increases free radicals as well as prostaglandins (PG) in neural tissues. We assessed whether in the retina the cyclooxygenase pathway contributes to free radical formation after oxidative insults such
Cyclooxygenase inhibitor improved an exudative lesion of choroidal neovascularization in age-related macular degeneration.
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OBJECTIVE
To report a case in which a nonselective cyclooxygenase (COX) inhibitor improved an exudative lesion in age-related macular degeneration.
RESULTS
A 64-year-old man had a complaint of metamorphopsia in the left eye. Visual acuity was 0.5 in the left eye. Fluorescein angiography and
Combination of a dual 5-lipoxygenase/cyclooxygenase inhibitor with a glucocorticoid results in synergistic topical antiinflammatory activity without inducing skin atrophy.
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Synthetic glucocorticosteroids are widely used in clinical dermatology in the treatment of a number of inflammatory skin disorders. However, cutaneous side effects such as induction of skin atrophy are among the factors that limit the chronic use of this class of agents. We have found that a
The selective cyclooxygenase-2 inhibitor rofecoxib suppresses brain inflammation and protects cholinergic neurons from excitotoxic degeneration in vivo.
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Brain inflammatory processes underlie the pathogenesis of Alzheimer's disease, and non-steroidal anti-inflammatory drugs have a protective effect in the disease. The aim of this work was to study in vivo whether attenuation of brain inflammatory response to excitotoxic insult by the selective
Cyclooxygenase-2 is up-regulated in proliferative inflammatory atrophy of the prostate, but not in prostate carcinoma.
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Cyclooxygenase-2 (COX-2) is the inducible isoform of the rate-limiting enzymes that convert arachidonic acid to proinflammatory prostaglandins as well as a primary target for nonsteroidal anti-inflammatory drugs. Accumulating evidence suggests that up-regulation of COX-2 is associated with
Role of cyclooxygenase-2 functional gene polymorphisms in Helicobacter pylori induced gastritis and gastric atrophy.
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In India, the role of host genetic factors is poorly studied for Helicobacter pylori associated diseases. Therefore, we evaluated the association of functionally relevant COX-2 gene polymorphisms (-765 G>C and +8473 T>C) in gastritis and precancerous lesions susceptibility. After upper GI endoscopy,
Treatments with losartan or enalapril are equally sensitive to deterioration in renal function from cyclooxygenase inhibition.
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BACKGROUND
The beneficial effects of angiotensin converting enzyme (ACE)-inhibitors are in part mediated through the inhibition of the degradation of the vasodilator bradykinin. The bradykinin effect is counteracted by cyclooxygenase-inhibitors. Angiotensin receptor blockers (ARBs) do not affect
The early induction of cyclooxygenase 2 associated with neurofibrillary degeneration in brains of patients with Fukuyama-type congenital muscular dystrophy.
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Brains of thirteen patients with Fukuyama-type congenital muscular dystrophy (FCMD) were evaluated regarding the expression of cyclooxygenase 2 (COX2), an enzyme involved in the synthetic pathway of prostaglandins and thromboxanes, as well as neurofibrillary tangles (NFT). The neuronal induction of
Inhibition of cyclooxygenase and nitric oxide synthase in hypoxic vasoconstriction and oleic acid-induced lung injury.
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Cyclooxygenase (COX) products and nitric oxide (NO) inhibit hypoxic pulmonary vasoconstriction (HPV), and their release could contribute to alterations in gas exchange in lung injury. We tested the hypothesis that combined blockade of COX and NO synthase (NOS) could further increase HPV and better
Genetic and Histological Alterations Reveal Key Role of Prostaglandin Synthase and Cyclooxygenase 1 and 2 in Traumatic Brain Injury-Induced Neuroinflammation in the Cerebral Cortex of Rats Exposed to Moderate Fluid Percussion Injury.
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After the initial insult in traumatic brain injury (TBI), secondary neurodegeneration occurs that is intimately associated with neuroinflammation. Prostaglandin (PG) synthases and cyclooxygenase (COX) 1 and 2 may contribute to inflammation in the brain. Temporal and spatial expression features of PG
Effects of Salvia miltiorrhiza on CNS Neuronal Injury and Degeneration: A Plausible Complementary Role of Tanshinones and Depsides.
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Salvia miltiorrhiza is a very important herbal drug of traditional Chinese medicine. Bioactive constituents are represented by two main groups of secondary metabolites, the lipophilic diterpenic quinones known as tanshinones and the hydrophilic depsides known as salvianolic acids. S. miltiorrhiza
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