gelatinase/accident vasculaire cérébral

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Gelatinase activity imaged by activatable cell-penetrating peptides in cell-based and in vivo models of stroke.

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Matrix metalloproteinases (MMPs), particularly gelatinases (MMP-2/-9), are involved in neurovascular impairment after stroke. Detection of gelatinase activity in vivo can provide insight into blood-brain barrier disruption, hemorrhage, and nerve cell injury or death. We applied

The clinical significance of neutrophil gelatinase-associated lipocalin in ischemic stroke patients with acute kidney injury.

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Acute kidney injury (AKI) has become a common complication of acute ischemic stroke (AIS) and may have a significant impact on the clinical outcomes. Neutrophil gelatinase-associated lipocalin (NGAL), an acute phase protein, has been identified as a novel biomarker for acute kidney

Effect of neutrophil depletion on gelatinase expression, edema formation and hemorrhagic transformation after focal ischemic stroke.

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BACKGROUND While gelatinase (MMP-2 and -9) activity is increased after focal ischemia/reperfusion injury in the brain, the relative contribution of neutrophils to the MMP activity and to the development of hemorrhagic transformation remains unknown. RESULTS Anti-PMN treatment caused successful

Inhibition of Gelatinases (MMP-2 and MMP-9) by Withania somnifera Phytochemicals Confers Neuroprotection in Stroke: An In Silico Analysis.

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A stroke or cerebrovascular accident is a serious, life-threatening medical condition that occurs when the blood supply to part of the brain is severely reduced or cut off, depriving brain tissue of oxygen and nutrients. Studies suggested that level of gelatinases (MMP-2 and MMP-9) usually increases

Cerebral mast cells mediate blood-brain barrier disruption in acute experimental ischemic stroke through perivascular gelatinase activation.

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OBJECTIVE Perivascularly positioned cerebral mast cells (MC) have been shown to participate in acute blood-brain barrier disruption and expansive brain edema following experimental transient cerebral ischemia. However, the underlying molecular mechanisms remain unknown. Because proteolytic

Risk of early postoperative acute kidney injury with stroke volume variation-guided tetrastarch versus Ringer's lactate.

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Whether intraoperative use of hydroxyethyl starch (HES) solutions is associated with postoperative acute kidney injury (AKI) continues to be researched. Urinary neutrophil gelatinase-associated lipocalin (NGAL) is validated for early detection of AKI. Previous studies are limited and

Selective water-soluble gelatinase inhibitor prodrugs.

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SB-3CT (1), a selective and potent thiirane-based gelatinase inhibitor, is effective in animal models of cancer metastasis and stroke; however, it is limited by poor aqueous solubility and extensive metabolism. We addressed these issues by blocking the primary site of metabolism and capitalizing on

Urine neutrophil gelatinase-associated lipocalin and risk of cardiovascular disease and death in CKD: results from the Chronic Renal Insufficiency Cohort (CRIC) Study.

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BACKGROUND Chronic kidney disease is common and is associated with increased cardiovascular disease risk. Currently, markers of renal tubular injury are not used routinely to describe kidney health and little is known about the risk of cardiovascular events and death associated with these biomarkers

Brain regional and cellular localization of gelatinase activity in rat that have undergone transient middle cerebral artery occlusion.

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Matrix metalloproteinases (MMPs) have been implicated in the pathophysiology of ischemic stroke. In particular, the gelatinases MMP-2 and MMP-9 contribute to disruption of the blood-brain barrier and hemorrhagic transformation following ischemic injury. In addition to extracellular matrix

The impact of hydrocortisone treatment on neutrophil gelatinase-associated lipocalin release in porcine endotoxemic shock.

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BACKGROUND A key feature of sepsis is systemic inflammatory activation that could be counteracted by steroids. In this experimental model of systemic inflammation, we sought to investigate whether septic neutrophil activation, evaluated by the plasma levels of neutrophil gelatinase-associated

Urinary neutrophil gelatinase-associated lipocalin as a predictor of cardiovascular events in patients with chronic kidney disease.

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Chronic kidney disease (CKD) is associated with an increased risk of cardiovascular (CV) events. Recently, elevated neutrophil gelatinase-associated lipocalin (NGAL) levels have been reported in patients with heart failure, coronary heart disease, or stroke. Our aim was to assess urinary NGAL as a

Selective localization of gelatinase A, an enzyme degrading beta-amyloid protein, in white matter microglia and in Schwann cells.

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Gelatinase A is an enzyme capable of cleaving soluble beta-amyloid protein (beta AP), and may function as an alpha-secretase to produce secretory forms of amyloid precursor protein. We examined gelatinase A immunoreactivity in the brains and posterior roots of neurologically normal, lacunar stroke,

Metabolism of (4-phenoxyphenylsulfonyl) methylthiirane, a selective gelatinase inhibitor.

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(4-Phenoxyphenylsulfonyl)methylthiirane (compound 1) is a highly selective and potent inhibitor of gelatinases that shows considerable promise in animal models for cancer and stroke. The metabolism of compound 1 was investigated in mice, following intraperitoneal administration at 100 mg/kg. Eight

Workflow for automated quantification of cerebromicrovascular gelatinase activity.

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The gelatinase enzymes, matrix metalloproteinases -2 and -9, are central mediators of blood-brain barrier disruption, actively studied in experimental models of neurological disease. Staining with in situ zymography (ISZ) allows visualization of gelatinase activity directly in brain tissue sections.

Synthesis of chiral 2-(4-phenoxyphenylsulfonylmethyl)thiiranes as selective gelatinase inhibitors.

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[reactions: see text] Compound 1, 2-(4-phenoxyphenylsulfonylmethyl)thiirane, is a selective inhibitor of gelatinases, which is showing high promise in studies of animal models for cancer metastasis and stroke. The (R)-1 and (S)-1 enantiomers of compound 1 were each synthesized in this study and were

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