Abstract:
BACKGROUND:Subarachnoid hemorrhage (SAH) is considered as a violent disease with high rate of morbidity and mortality. Early brain injury (EBI) and delayed vasospasm are the two aspects of this disease that are becoming research hotspots. OBJECTIVE:We aim to update the role of oxidative stress in the development of EBI and delayed cerebral vasospasm after SAH. METHOD:We reviewed early researches, and mainly discussed three aspects of contents: reactive oxygen species (ROS) production, the role of oxidative stress in early brain injury and delayed vasospasm, and clinical implications. RESULTS:There are several sources for the excessive generation of oxidants after SAH such as disrupted mitochondrial respiration, upregulated enzymatic pathways, extracellular hemoglobin degradation and depressed intrinsic antioxidant systems. Neuron apoptosis induced by ROS is one vital mechanism of EBI. And extracellular hemoglobin degradation and nitric oxide synthases up-reputation are involved in the pathogenesis of delayed cerebral vasospasm. Some antioxidants show significant neuroprotection in researches. CONCLUSION:ROS production increases in SAH via mitochondria, hemoglobin or enzymatic pathway, and it plays a vital important role in SAH. It seems that antioxidant therapy will be most effective as one component in a treatment regime that attempts to address all the different pathways to EBI and vasospasm following SAH.
journal_name
Curr Drug Delivjournal_title
Current drug deliveryauthors
Yang Y,Chen S,Zhang JMdoi
10.2174/1567201813666161025115531subject
Has Abstractpub_date
2017-09-06 00:00:00pages
832-842issue
6eissn
1567-2018issn
1875-5704pii
CDD-EPUB-79228journal_volume
14pub_type
杂志文章,评审abstract::The blood brain barrier protects the brain from harmful substances in the blood stream and has stopped the development of many powerful and interesting drugs candidates for central nervous system due to the low poor distribution and by efflux mechanisms. Many different approaches have been developed in order to overco...
journal_title:Current drug delivery
pub_type: 杂志文章,评审
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abstract:OBJECTIVES:The main objective of this novel study was to develop midazolam hydrochloride fast dissolving oral films (FDFs) using solvent casting method and to evaluate the characteristics of the optimum formulation through in vitro and in vivo analysis. The FDFs are new favorable solid dosage forms that deliver drugs r...
journal_title:Current drug delivery
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doi:10.2174/1567201815666180723115600
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abstract::The present study performed by preparation and evaluation of floating tablets of Acyclovir as model drug for prolongation of gastric residence time. Floating effervescent tablets were formulated by various materials like hydroxypropyl methylcellulose K 4M, K 15M, psyllium husk, swelling agent as crospovidone and micro...
journal_title:Current drug delivery
pub_type: 杂志文章
doi:10.2174/156720109789941678
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journal_title:Current drug delivery
pub_type: 杂志文章,评审
doi:10.2174/1567201814666171120125916
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abstract::Phase-sensitive in situ gel forming controlled release formulations of cyclosporine were prepared using poly (lactide-co-glycolide) and a solvent system consisting of various proportions of benzyl benzoate and benzyl alcohol. Uniformity of content of cyclosporine in the formulation and in vitro release samples was det...
journal_title:Current drug delivery
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abstract::The objective of this study was to develop and evaluate mucoadhesive microsphere of diclofenac sodium with natural gums for sustained delivery. Guar gum and tragacanth were used along with sodium alginate as mucoadhesive polymers. Microspheres were formulated using orifice-ionic gelation method. Particle size, surface...
journal_title:Current drug delivery
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abstract::Scientists have always been interested in the use of natural polymers for drug delivery. Chitosan, being a natural cationic polysaccharide has received a great deal of attention in the past few years. It is obtained by deacetylation of chitin and is regarded as the second most ubiquitous polymer subsequent to cellulos...
journal_title:Current drug delivery
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journal_title:Current drug delivery
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abstract::The objective of present investigation was the characterization of chitosan films after in vivo implantation. Chitosan films were prepared at three dose loadings of paclitaxel by classical casting method. They were implanted subcutaneously in Swiss mice in the neck region and were removed at 7, 15, 21 and 30 days post...
journal_title:Current drug delivery
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journal_title:Current drug delivery
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journal_title:Current drug delivery
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journal_title:Current drug delivery
pub_type: 杂志文章,评审
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journal_title:Current drug delivery
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journal_title:Current drug delivery
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journal_title:Current drug delivery
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journal_title:Current drug delivery
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journal_title:Current drug delivery
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journal_title:Current drug delivery
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journal_title:Current drug delivery
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journal_title:Current drug delivery
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journal_title:Current drug delivery
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journal_title:Current drug delivery
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更新日期:2007-01-01 00:00:00
abstract:OBJECTIVES:A ceftiofur hydrochloride long-acting oily suspension with no irritation was prepared by testing and optimizing the types and amounts of organic solvents, suspending agents, and surfactants.
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journal_title:Current drug delivery
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