Dexamethasone attenuates acute macromolecular efflux increase evoked by smokeless tobacco extract.
Dexamethasone attenuates acute macromolecular efflux increase evoked by smokeless tobacco extract.
复制标题
地塞米松可减弱无烟烟草提取物引起的急性大分子流出增加。
DOI:
10.1152/jappl.1999.87.2.619
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发表时间:
1999
期刊:
影响因子:
--
通讯作者:
Rubinstein,I
中科院分区:
文献类型:
--
作者:
Gao,XP;Akhter,SR;Ikezaki,H;Hong,D;Rubinstein,I
The purpose of this study was to determine whether dexamethasone attenuates the acute increase in macromolecular efflux from the oral mucosa elicited by an aqueous extract of smokeless tobacco (STE) in vivo, and, if so, whether this response is specific. Using intravital microscopy, we found that 20-min suffusion of STE elicited significant, concentration-related leaky site formation and an increase in clearance of fluorescein isothiocyanate-labeled dextran (FITC-dextran; mol mass 70 kDa) from the in situ hamster cheek pouch (P< 0.05). This response was significantly attenuated by dexamethasone (10 mg/kg iv). Dexamethasone also attenuated the bradykinin-induced leaky site formation and the increase in clearance of FITC-dextran from the cheek pouch. However, it had no significant effects on adenosine-induced responses. Dexamethasone had no significant effects on baseline arteriolar diameter and on bradykinin-induced vasodilation in the cheek pouch. Collectively, these data indicate that dexamethasone attenuates, in a specific fashion, the acute increase in macromolecular efflux from the in situ oral mucosa evoked by short-term suffusion of STE. We suggest that corticosteroids mitigate acute oral mucosa inflammation elicited by smokeless tobacco.
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影响因子:
1.9
作者:
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通讯作者:
E. G. Herbosa
DOI:
--
发表时间:
1996
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Gao,XP;Vishwanatha,JK;Conlon,JM;Olopade,CO;Rubinstein,I
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Rubinstein,I
DOI:
10.1152/jappl.1997.83.1.74
发表时间:
1997
期刊:
Journal of applied physiology (Bethesda, Md. : 1985)
影响因子:
--
作者:
Gao,XP;Suzuki,H;Olopade,CO;Pakhlevaniants,S;Rubinstein,I
通讯作者:
Rubinstein,I
影响因子:
3.1
作者:
E. Bouskela;G. Rubanyi
通讯作者:
G. Rubanyi
DOI:
10.1016/0278-2391(90)90433-3
发表时间:
1990
期刊:
Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons
影响因子:
--
作者:
J. Oh;H. Cherrick;N. Park
通讯作者:
N. Park