1.Effects of conotoxin SO3 on free calcium ion concentration in rat cultured hippocampal neurons induced by hypoxia.
Shi-Wei JIANG ; Xiao-Wei ZHOU ; Ai-Shi DING
Chinese Journal of Applied Physiology 2005;21(4):375-422
Animals
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Calcium
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metabolism
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Cell Hypoxia
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Cells, Cultured
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Hippocampus
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cytology
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Neurons
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drug effects
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metabolism
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Rats
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Rats, Wistar
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omega-Conotoxins
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pharmacology
2.Yiyuan Shengjing Decoction Treat Similar Climacteric Syndrome of Breast Cancer after Treated with Tamoxifen
Yunfu SHI ; Qiaoling WEI ; Lina ZHOU
Journal of Zhejiang Chinese Medical University 2014;(10):1172-1174,1182
Objective] To observe the clinical effect of Yiyuan Shengjing Decoction on similar climacteric syndrome of breast cancer after treated with tamoxifen. [Method] Choose 60 cases of breast cancer, randomly divide them into control group 30 cases and treatment group 30 cases, the control one were treated with tamoxifen and oryzanol, the treatment one, with tamoxifen and Yiyuan Shengjing Decoction. After 4w, evaluate the efficacy, compare their clinical symptoms score, hormone levels and endometrium thickness, and calculate the clinical relieving rate. [Result] After treatment, both groups clinical symptoms were relieved more than before treatment, with difference of statistical meaning; comparing on clinical symptoms scores, the treatment was much less than control one, with statistical meaning; on clinical relieving rates, the treatment group reached 83.33%, while 26.67% for control one, both had difference of statistical meaning. The comparison of reproductive hormone levels and endometrium thickness, the difference had no statistical meaning. [Conclusion] Yiyuan Shengjing Decoction treating breast cancer similar climacteric syndrome after treated with tamoxifen had marked cure effect, without influencing reproductive hormone level and endometrium thickness.
3.Safety and clinical efficacy of three types stents of transjugular intrahepatic porto-systemic shunt in treatment of cirrhosis with portal hypertension
Shaolian JIANG ; Wei LI ; Shi ZHOU
Chinese Journal of Interventional Imaging and Therapy 2017;14(6):343-346
Objective To analyze the safety and clinical efficacy of three types stents of transjugular intrahepatic portosystemic shunt (TIPS) in treatment of cirrhosis with portal hypertension.Methods Totally 1 086 patients with cirrhotic portal hypertension underwent TIPS for the first time.All patients were divided into bare stent group (group A),covered stent-group (group B) and combined stents group (group C).The rates of symptom improvement,shunt insufficiency,re bleeding,survival and major complications in 2 years after TIPS were analyzed and compared.Results Totally 1 690 stents were placed in 1 086 patients.The overall technical success rate was 100%;2.53% (10/396) emergency patients dead due to uncontrolled gastrointestinal bleeding,and 2.78% (11/396) emergency patients,0.84% (5/593) bleeding stopped patients dead with acute liver funtional failure.In 2-year following-up,the overall survival rate of group A,group B,group C were 83.78% (186/222),88.36% (281/318),96.34% (526/546),and the difference was statistical significant (x2=4.15,P=0.04).The shunt insufficiency rates of group A,group B,group C were 39.64% (88/222),22.33% (71/ 318),11.17% (61/546),and the difference was statistical significant (x2 =4.15,P=0.04),The rates of rebleeding of group A,group B,group C were 31.53% (70/222),16.89% (54/318),7.14% (39/546),and the difference was statis tical significant (x2 =9.91,P=0.01).The rates of hepatic encephalopathy of group A,group B,group C were 21.62% (48/222),22.96% (73/318),19.23% (105/546),and the difference had no statistical significant (x2 =1.00,P=0.06).Conclusion TIPS is an effective way to relieve portal hypertension and complications in patients with cirrhosis.The safety and clinical efficacy can be improved by 8 mm shunt with double stent technique.
4.Pay much attention to neovascular glaucoma caused by hypoperfusion retinopathy
Ophthalmology in China 2006;0(05):-
Neovascular glaucoma is a rare and severe complication of hypoperfusion retinopathy.The appearance of hypoperfu- sion retinopathy complicating neovascular glaucoma in ophthalmolscopy and fundus fluorescein angiography shows a special feature. Neovascular glaucoma occurs when new fibrovascular tissues proliferate onto the chamber angle and obstruct the trabecular meshwork. The stenosis or occlusion of internal carotid artery is the most common reason of hypoperfusion retinopathy in elder people.Early recog- nition and treatment of patients with carotid occlusive diseases may prevent more serious complications.
5.EFFECTS OF CALCIUM CONCENTRATION IN DIALYSATE ON QT INTERVAL AND QT INTERVAL DISPERSION DURING HEMODIALYSIS
Wei ZHOU ; Xuewei ZHAO ; Haibi SHI
Medical Journal of Chinese People's Liberation Army 1982;0(03):-
To investigate the effect of calcium concentration in dialysate on the QT interval (QT) and QT interval dispersion (QTd) during hemodialysis(HD) in patients with end stage renal disease (ESRD), Ca 2+ concentrations of 1 25mmol/L (dCa 2+ 1 25), 1 5mmol/L (dCa 2+ 1 5) and 1 75mmol/L (dCa 2+ 1 75) in dialysate were given to 15 ESRD patients for five times. The QT and QTd were measured before and after the five HD sessions. The results showed: With the dCa 2+ 1 25 HD, serum Ca 2+ and plasma calcium were decreased (1 22?0 08 vs 1 17?0 07 mmol/L and 2 43?0 34 vs 2 28?0 16mmol/L, P 0 05). The changes in the QT correlated inversely with the changes in serum Ca 2+ and plasma calcium ( P
6.Effects of glycomacropeptide in human milk and formula milk on proliferation ofbiifdobacterium infantis in vitro
Hui SHI ; Shaowei ZHENG ; Longguang HUANG ; Wei ZHOU
Chinese Journal of Perinatal Medicine 2016;19(7):528-533
ObjectiveTo explore the effects of glycomacropeptide (GMP) in human milk and formula milk on proliferation ofbifidobacterium infantis and their dose-response relationship.Methods Casein was isolated from the milk of 30 healthy postpartum women from Guangzhou Women and Children's Medical Center in September 2014, and hydrolyzed by rennet to obtain GMP, which was then purified by ultrafiltration and ion exchange chromatography. Human milk GMP and cow milk GMP (0, 250, 500, 1 000, 1 500, 2 000 and 3 000 mg/L) were added tobifidobacterium infantis liquid medium, and cultured under anaerobic conditions. Concentration of bacteria was measured by turbidimetric microplate assay (detection of OD600 nmvalue of medium). Difference of proliferative activities ofbiifdobacterium infantis in human milk GMP and cow milk GMP was compared with independent samplest-test.ResultsPurified human milk GMP concentration was 1 712.20 mg/L, with a purity of 80.3%. Increasing the cow milk GMP initial concentration in the culture medium at 250-2 000 mg/L could increase the concentration and proliferation rate ofbiifdobacteria infantis. When cultured at 36 h with GMP of various concentrations, the proliferation ofbiifdobacteria infantis maintained at a logarithmic phase. Therefore, 36 h was chosen as the test time point to compare the proliferation ofbifidobacterium infantis. At 36 h, when GMP in the medium was 1 000, 1 500, 2 000 and 3 000 mg/L, concentrations ofbiifdobacteria infantis in human milk GMP were 2.255±0.036, 2.583±0.088, 2.877±0.080 and 3.219±0.081, respectively, which were significantly higher than those in cow milk GMP (2.115±0.053, 2.312±0.064, 2.542±0.090 and 2.894±0.076;t=4.867, 5.569, 6.192 and 6.516; allP<0.01).Conclusions Both human milk GMP and cow milk GMP can promote the proliferation ofbiifdobacterium infantisin vitro, and the proliferative activity in human milk is greater than in cow milk at the same concentration of GMP.
7.Clinical and pathological observation on primary pulmonary primitive neuroectodermal tumor
Libo PENG ; Xue WEI ; Shanshan SHI ; Xiaojun ZHOU ; Bo WU
Journal of Medical Postgraduates 2015;(3):277-279
Objective Primitive neuroectodermal tumor (PNET) is a rare malignant small round cell tumor .This paper aimed to study the clinical and pathological features of primary pulmonary primitive neuroectodermal tumor . Methods We collected 2 cases of primary pulmonary PNET to review the clinical and pathological features .Immunohistochemical staining was used to detect immune mark-ers, and fluorescence in situ hybridization (FISH) was applied to detect EWS translocation. Results 2 patients were aged 33 years and 17 years.Microscopically, the tumor cell was composed of single small round cells in diffusion or in distribution of sheets or beams , with scant cytoplasm , oval or spindle-shaped nucleus , high mitotic count .Irregular tumor necrosis scattered in the tumor along with visi-ble rosette structure.Immunohistochemical study showed that the tumor cells were positive for CD 99, FLI-1 and Syn, while CKpan, EMA, Desmin, CgA, TTF1, CD34 were negative.EWS/FLI1 translocations were detected positive in both the cases .2 patients died 7 months and 32 months after operation , respectively . Conclusion Primary pulmonary PNET is rare , so the selection of appropriate im-mune markers (CD99, FLI-1, Syn) and FISH for the detection of EWS translocation helps to improve the accuracy of diagnosis .
8.Study on the expression level of 8-Hydroxy-2'-deoxyguanine in rhesus monkeys of different ages
Fei SHI ; Ben NIE ; Wei GAN ; Yanqiu ZHOU ; Jianping CAI
Chinese Journal of Geriatrics 2017;36(1):84-87
Objectives To investigate the expression of 8-Hydroxy-2'-deoxyguanine(8-oxodG)in white blood cell,plasma and urine of rhesus monkey of different age group.Methods 30 female rhesus macaques at different age(1y,5y,10y,15y,20y,25y)were selected and grouped(n=5,each).10 mL of morning urine and 5 mL of fasting venous blood were collected.The level of 8-oxodG expression in plasma,leukocyte and urine was measured by high-performance liquid chromatography-mass spectrometry(HPLC-MS) method.Results The level of 8-oxodG in leukocytes,plasma and urine was increased along with aging.The level of 8-oxodG was 1.8,1.6 and 1.4 times higher in 25 year group than in 1 year group in plasma,white blood cell and urine,respectively(P<0.05).The 8-oxodG level was more than 40 times higher in urine than in plasma.Conclusions The expression level of 8-oxodG is increased along with aging.It may be one of the experimental evidence of the aging markers.
9.Double-balloon endoscopy and capsule endoscopy for small intestinal bleeding
Yiyang ZHANG ; Shutang HAN ; Xiaobai ZHOU ; Jun XIAO ; Wei SHI
Chinese Journal of Digestive Endoscopy 2010;27(8):402-405
Objective To study the diagnostic value of double-balloon endoscopy (DBE) and capsule endoscopy (CE) for small intestinal bleeding. Methods Overall detection rates of small intestinal bleeding with DBE, CE and the whole alimentary tract barium meal were compared. Positive rates of bleeding detection with DBE and CE were compared within the same patients. Influence of CE on one-procedure rate of DBE was analyzed. Results In 105 cases of small intestine bleeding, DBE detected 24 cases of Crohn's disease, 15 adenocarcinoma, 12 chronic nonspecific inflammation, 10 small intestinal ulcer of unknown reason, 8 entero-mesenchymoma, 8 polypus, 6 vascular deformation hemorrhage, 5 ancylostomiasis, 5 Mechel's diverticula ( including multiple diverticula), 3 lymphoma and 9 of no evident abnormalities. The positive detection rate of DBE is 91.4% (96/105). Disease detection rates of CE and whole alimentary tract barium meal were 75.0% (30/40) and 33.3% (25/75), respectively. The one-procedure rate of DBE is 90% (36/40) based on CE results, but it was only 69. 2% (45/65) according to clinic features and the whole alimentary tract barium meal. Conclusion The main causes of small intestinal bleeding are benign ulcers (including Crohn's disease) and tumor, as well as chronic inflammation. Polyps, vascular deformation, parasitosis, Mechel's diverticulum and lymphoma are the secondary causes.DBE is superior to CE in diagnosis of small intestine bleeding, but CE can increase the one-procedure rate of DBE.