1.Inhibition of resveratral on lipid peroxidative reaction and reactive oxygen species of early experimental rat spinal cord injury
Chinese Journal of Clinical Pharmacology and Therapeutics 2000;0(03):-
AIM: To study the effects of resveratral on lipid peroxidative reaction and reactive oxygen species (ROS) in experimental spinal cord injury rats. METHODS: The weight dropping method was used to produce the experimental spinal cord injury (SCI) in adult rats. Resveratrol (Res) and methylprednisolone (MPSS) were given intraperitoneally by the bolus injections of 50, 100 mg?kg -1 and 100 mg?kg -1 , respectively, immediately after induction of SCI. And then the effects of Res were observed at 1, 24, 48 h after SCI compared with MPSS. RESULTS: Res could obvious prevented reduction of superoxide dismutase (SOD) activity and reduce malondialdehyde (MDA) production and inhibit the ROS level in the injured spinal cord tissue in comparison with the SCI model at the dose of 50 mg?kg -1 and 100 mg?kg -1 , which the most remarkable effects was at 48 h with the inhibition rate over 40%. The effects of Res were the same as or even greater than those of MPSS. CONCLUSION: Res may effectively protect the spinal cord from lipid peroxidative reaction and ROS damage in SCI.
2.Effects of resveratrol on secondary spinal cord edema and activity of lactic dehydrogenase and ATPase in experimental spinal cord injury of rats
Chinese Pharmacological Bulletin 1986;0(05):-
AIM To study the effects of resveratrol on secondary spinal cord edema and the activity of lactic dehydrogenase and Na +, K + ATPase in experimental spinal cord injury (SCI)rat. METHODS The weight dropping method was used to produce the experimental spinal cord injury in adult rats. Resveratrol (Res) and methylprednisolone (MPSS) were intraperitoneally by the bolus injections of 50 mg?kg -1 , 100 mg?kg -1 and 100 mg?kg -1 , respectively, immediately after the induction of SCI. And then the effects of Res were observed at 1 h, 24 h, 48 h after SCI compared with MPSS. RESULTS Res could obvious inhibit the secondary spinal cord edema with the most remarkable suppressing rate by 11 5% at 48 h. Res was able to significantly suppress the activities of the lactic dehydrogenase with the highest suppressing rate for over 40% at 24 h. In the meantime, Res markedly improved the Na +, K + ATPase activities that promoted to the biggest extent to 60% at 48 h. The effects of Res were the same as or even stronger than those of MPSS. CONCLUSION Res may effectively protect the spinal cord from secondary spinal cord edema and improve the energy metabolism system in SCI. It suggested that Res may be having potent therapeutic effect on SCI.
3.Advances in research on pharmacological strategies for spinal cord injury
Fengjun DENG ; Yingbao YANG ; Jiangping XU
Chinese Pharmacological Bulletin 1987;0(02):-
Aim Pharmacological intervention is one of important strategies to deal with spinal cord injury.The effect of Pharmacological intervention has highly differentiated features because of complex physiopathology mechanisms in SCI.Moreover contraindications,complications having different features,it is constantly the focal point in the selection of pharmacological intervention to protect spinal cord,attenuate secondary injury and promote injuried neuron regeneration.At present only several of those have been applied in clinic and the majority are still being carried out in clinic trial stage,even preclinical animal experiment stage.This paper made a particular review of the current situation in pharmacological intervention for spinal cord injury.
4.The inhibitive effects of resveratrol on adhesion of neutrophils to HUVECs induced by fMLP
Yingbao YANG ; Jinghui LUO ; Jianping XU ; Kazuhiko TAKEUTI ; Hiroshi WATANABE
Chinese Pharmacological Bulletin 2003;0(12):-
Aim To study the effects of resveratrol(Res)on the release of soluble adhesion molecules from human umbilical vein endothelial cells(HUVECs)induced by N-formyl-methionyl-leucyl-phenylal-anine(fMLP)and the adhesion between neutrophils and HUVECs.Methods The effects of Res on neutrophils adhesion to human umbilical endothelial cell(HUVECs)triggered by fMLP were examined.The soluble intercellular cell adhesive molecule-1(ICAM-1),the soluble vascular cell adhesive molecule-1(VCAM-1)and E-selectin release from fMLP(10 ?mol?L-1)stimulated HUVECs were determined by ELISA kits.The neutrophils isolated from human vein blood were loaded with Fluo-3,a fluorescent indicator,to detect intracellular free calcium concentration([Ca2+]i),and CLA was used as a chemiluminescent indicator to determine superoxide production in neutrophils.Results Res(1~50 ?mol?L-1)significantly inhibited neutrophil adhesion to fMLP-stimulated HUVECs and also obviously downregulated the levels of ICAM-1,VCAM-1 and E-selectin in supernatant of HUVECs culture stimulated by fMLP in the dose-dependent pattern.Res also suppressed fMLP-activated superoxide generation and[Ca2+]i increase in neutrophils.Conclusions Res involved in neutrophil adhesion to HUVECs intermediated by cell adhesive molecules expression trigged by[Ca2+]i and superoxide production in neutrophils,which means a lot to prevent inflammatory diseases.
5.3 2 0-detector CT study on the anatomic positional relationship of bronchial artery with esophagus and main bronchus
Lei RUAN ; Tian ZHAO ; Yingbao HUANG ; Yan WANG ; Zhenzhang WANG ; Xianzhong GUO ; Houchang SUN ; Weijian CHEN ; Yunjun YANG
Journal of Practical Radiology 2017;33(1):35-38
Objective To explore the anatomic positional relationship of bronchial artery(BA)with esophagus and main bronchus on 320-detector CTA.Methods Original and post-processed images of 142 patients were observed.Type,origin,opening direction of BA as well as its concomitant relationship with esophagus were recorded.The positional relationship of BA with main bronchus was also recorded by fusing the images of BA and bronchial tree together.Results In 122 patients,273 BA were identified (146 on the right and 127 on the left).Right BA mainly ran simultaneously along the right and posterior edge of the esophagus (49.3%),while left BA mainly ran far gradually on the left side of the esophagus (82.7%).The left and right BA mainly ran along the middle thoracic esophagus, accounting for 58.3% and 42.5% respectively.45.2% of the right BA ran across the posterior edge of the right main bronchus and 60.6% of left BA ran simultaneously on the posterior and up edge of the esophagus.The most dividing direction of BA from the tho-racic aorta was 9 to 12 o’clock with a frequency of 74.2%.Conclusion The concomitant relationship with esophagus of the BA and the positional relationship with main bronchus of the BA could clearly be demonstrated on 320-detector CTA,thus providing availa-ble information and help for pulmonary and mediastinal sugery.
6.Clinical features and rupture risk of anterior communicating artery aneurysms in different age groups
Boli LIN ; Yunjun YANG ; Lifang CHEN ; Yingbao HUANG ; Jieqing WAN ; Bing ZHAO ; Yongchun CHEN
Chinese Journal of Postgraduates of Medicine 2019;42(6):546-551
Objective To determine clinical features and rupture risk of anterior communicating artery (AComA) aneurysms in different age groups. Methods The clinical data of 519 consecutive patients with AComA aneurysms in the First Affiliated Hospital of Wenzhou Medical University between December 2007 and February 2015 were reviewed and divided into younger group (<65 years) and older group (≥65 years). The clinical characteristics and aneurysm morphologies were compared between the two groups. Results There were 390 aneurysms in younger group, and 129 in older groups. For the younger group, hypertension,the size of the aneurysms, maximum height, perpendicular height, size ratio (SR), aspect ratio (AR), aneurysm angle, A1 segment configuration, morphology showed significantly differences in ruptured aneurysms group compared with those in unruptured aneurysms (P<0.05). The multivariate analysis showed that significant difference between the two groups was aneurysm size ( OR=1.461,95% CI 1.027-2.079, P=0.035). For the older group, there were statistically significant differences in hypertension,size of the aneurysms, maximum height, perpendicular height, SR, aneurysm angle, vessel size and the distribution of aneurysm projection between the ruptured aneurysms group and unruptured aneurysms group (P<0.05). The multivariate analysis showed that SR ( OR=11.516,95% CI 1.782-74.445,P=0.01) was the only significant predictor of aneurysm rupture. Between the younger and older groups,the distributions of sex, hypertension, smoke, vessel size and SR were statistically significant (P < 0.05). Conclusions For younger people, the males who smoked are more likely to have AcomA aneurysms and the size of the aneurysms is independent risk of aneurysm rupture. For older people, the females with hypertension also more often have AcomA aneurysms and the SR is independently associated with aneurysm rupture.
7.A case report of pelvic aggressive angiomyxoma
Kai DENG ; Meng YANG ; Lin ZHANG ; Fang YANG ; Qinrong PING ; Xiaofang BI ; Jun TAN ; Yunqiang SHI ; Yingbao WANG ; Rui GONG ; Chunhui WANG
Chinese Journal of Urology 2023;44(11):871-872
Aggressive angiomyxoma (AAM) is a rare clinical entity. A case of AAM was reported in this paper. The patient presented with severe hydronephrosis of the left kidney and was diagnosed with a pelvic mass compressing the ureter. The patient underwent laparoscopic resection of the pelvic mass. The postoperative pathology and immunohistochemistry confirmed the diagnosis of AAM. The patient had no recurrence and metastasis after 9 months of follow-up.