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cyclooxygenase/atrofija

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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
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
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
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
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
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
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
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 (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
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,
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
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
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
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
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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