Document Detail


The role of cyclooxygenase-derived oxidative stress in surgically induced lymphedema in a mouse tail model.
MedLine Citation:
PMID:  23373707     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Abstract Context: Oxidative stress may contribute to lymphedema and subsequent tissue damage. However, the causal role of oxidative stress in lymphedema remains unclear. Objective: We attempted to detect and identify the free radicals formed in lymphedema fluid and assessed the protective mechanisms and effects of specific enzyme inhibitors and natural antioxidants. Materials and methods: To study the level of postsurgical oxidative stress with lymphedema in a mouse tail model, we used an electron spin resonance (ESR) method and an ascorbyl radical's ESR spectrum as an oxidative stress biomarker. The drug-treatment group received an i.p. injection with indomethacin (2 mg/kg), baicalein (15 mg/kg), MK-886 (3 mg/kg), zileuton (6.25 mg/kg), diphenyleneiodonium (DPI; 1 mg/kg), sulforaphane (30 mg/kg), oryzanol (30 mg/kg) or sesamol (30 mg/kg) once daily for 14 d from the day of operation. All animals were sacrificed on day 14. Results: Administration of indomethacin, sulforaphane, oryzanol and sesamol significantly suppressed both the tail volume (56.9%, 77.8%, 72.2% and 38.1% inhibition, respectively, p < 0.01) and ascorbyl radical signals (31.4%, 54.5%, 79.3% and 57.1% inhibition, respectively, p < 0.01), compared with the control mice. No significant differences were found between any of the baicalein, MK-886, or zileuton groups compared with the control. DPI suppressed the tail volume (25.9% inhibition, p < 0.01) but not the ascorbyl radical signals. Conclusion: This study showed that COX-derived oxidative stress plays a major role in the pathological mechanisms of surgically induced lymphedema. Indomethacin, sulforaphane, oryzanol and sesamol exhibit potent protective properties against surgically induced lymphedema.
Authors:
Ting-Chen Chang; Yih-Huei Uen; Cheng-Hung Chou; Joen-Rong Sheu; Duen-Suey Chou
Related Documents :
15714087 - Multislice computed tomography-urography: intraindividual comparison of different prepa...
3827597 - Metabolism of free fatty acids (fa) and triacylglycerol (tg) in acute and subacute fluo...
24104387 - Toxicological effects of multi-walled carbon nanotubes adsorbed with nonylphenol on ear...
23365367 - The growing pancreatic duct ligated pig as a model for exocrine pancreatic insufficienc...
15110367 - The effect of cisatracurium and rocuronium on cisatracurium precurarization and the pri...
3651897 - Embryotoxic effects of prenatal t-2 toxin exposure in mice.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-2-4
Journal Detail:
Title:  Pharmaceutical biology     Volume:  -     ISSN:  1744-5116     ISO Abbreviation:  Pharm Biol     Publication Date:  2013 Feb 
Date Detail:
Created Date:  2013-2-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9812552     Medline TA:  Pharm Biol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Wan Fang Hospital, Taipei Medical University , Taipei , Taiwan .
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Coplanar Bithiazole-Centered Heterocyclic Aromatic Fluorescent Compounds Having Different Donor/Acce...
Next Document:  Bioactivities and serum pharmacochemistry of Qi-Wei-Xiao-Yan-Tang.