1.Effects of intravenous anesthetics on endotoxin-induced inflammatory responses in rabbits undergoing mechnical ventilation
Wen NI ; Yuanchang XIONG ; Xiaoming DENG
Chinese Journal of Anesthesiology 1996;0(07):-
Objective: To determine the effects of intravenous anesthetics (fentanyl,midazolam and propofol )on inflammatory responses. Method: We employed carrageenan-sensitized endotoxemic rabbit model. Thirty-two New Zealand rabbits were randomly assigned to one of four groups,control group(no anesthetic was used), fentanyl group, midazolam group and propofol group. Different anesthetics were used intravenously for anesthesia induction and maintenance according to the group classification. Meanwhile, all animals were mechanically ventilated, then, 2?g?kg~(-1) lipopolysaccharide(LPS) were injected for endotoxin challenge. Result:In all groups, serum tumor necrosis factor (TNF)activity began to increase at 30 min,reached its maximal level at 60 min,and tended to decrease at 120 min after (LPS) challenge,and the significant increase of TNF activity was associated with development of hypotension. Meanwhile,serum phospholipase A_2(PLA_2)activity began to increase at 60 min and persisted in going up within 2h. Those animals,with continuous infusion of these three different anesthetics and mechanical ventilation,had much lower peak level of TNF and higher mean arterial pressure (MAP)than control levels, but their changes of serum PLA_2 activity had no significant difference from control level. Conclusion: With mechanical ventilation, intravenous infusion of these anesthetics can reduce LPS induced injury in the acute phase of endotoxemia, probably by the inhibition of TNF production.
2.Effect of Stigma Maydis Aqueous Extract on Glucolipid Metabolism and Oxidative Stress in Type 2 Diabetic Rats
Xianchun WEN ; Li ZHOU ; Xiaoming LI
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(05):-
Objective To investigate the effect of stigma maydis aqueous extract on glucolipid metabolism and oxidative stress in type 2 diabetic rats.Methods Male Sprague-Dawley rats were randomly divided into normal control group,model control group,positive control group(Metformin) and stigma maydis aqueous extract low,middle,high dose group.Type 2 diabetic rats model was induced by high-fat and high-sugar dietary feeds and streptozotocin(STZ) in all groups except the normal control group.After treatment of 8 weeks,automatic biochemistry instrument was applied to detecting the levels of fast blood glucose(FBG),triglyceride(TG),total cholesterol(TC) and low density lipoprotein cholesterol(LDL-C) in serum.The levels of free fat acid(FFA),malonaldehyde(MDA) and superoxide dismutase(SOD) in serum were assayed by uv-vis spectrophotometer.Results Compared with model control group,after stigma maydis aqueous extract treatment,middle and high dose groups remarkably lowered the levels of FBG,FFA,TG and TC in dose-dependent manner(P
3.A preliminary study on the proliferation of endothelial cells of human hemangioma
Xiaoming DAI ; Longjiang LI ; Yuming WEN
Journal of Practical Stomatology 2001;0(03):-
Objective: To study the role of simian virus 40 large T antigen(SV40LTag) and telomeras in the proliferation of endothelial cells in hemangioma. Methods: The expression of SV40LTag was examined in 100 cases of hemangioma with immunohistochemistry, telomerase activity and telomeric length were measured by RT-PCR based telomeric repeat amplification protocol(TRAP) assay, telomeric restriction fragment (TRF) analysis and chemiluminescence in situ hybridization in 50 cases of hemangioma and 10 of squamous cell carcinoma. A sample of embryonic kidney endothelia was used as the contrdol. Results: SV40LTag expression was observed in 45 out off the 100 cases of hemangioma. Telomerase expression was found in 27 out off the 50 cases of hemangioma and all the 10 of squamous cell carcinoma. The telomeric length in hemangioma varied from 6.8 to 13.2 kb, 10.5-13.5 kb in squamous cell carcinoma and 12.4 kb in embryonic kidney endothelia. Conclusion: Transformation of endothelia by simian virus 40 may contribute to the occurring of hemangioma, telomerase may play a role in the proliferation of the endothelial cells in hemangioma.
4.Study the Different Biology Behavior of Typical Breast Medullary Carcinoma and Atypical Medullary Carcinoma
Xiaoming LI ; Lichao WEN ; Renzhi ZHU ;
Chinese Journal of Bases and Clinics in General Surgery 2003;0(03):-
Objective To study the cause of different prognosis in typical medullary carcinoma and atypical medullary carcinoma. Methods The immunohistochemical staining method was used to evaluate the positivity of E cadherin,? catenin, in 30 cases of atypical medullary carcinoma and 18 cases of typical medullary carcinoma and 10 cases of normal breast. Results The positive rate and staining intensity of E cadherin and ? catenin oncoprotein were significantly higher in typical medullary carcinoma than in atypical medullary carcinoma( P
5.Chronic invasive fungal rhinosinusitis complicated with infratemporal fossa fungal infection: 2 cases report.
Wen LI ; Xiaoming QIAO ; Liu YANG
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2014;28(4):276-279
Two cases of chronic invasive fungal rhinosinusitis were reported. One patient healed while another died with suspicious residual fungal infection. The clinical symptoms of infratemporal fungal infection include maxillofacial pain, with or without fever. Acute or chronic inflammation of soft tissue could be revealed pathologically. Proof of pathogen may not be found in histopathological slice while serological detection may reveal positive evidence. Surgical resection, good drainage and postoperative antifungal therapy could cure or promptly relieve the symptoms of the disease.
Aged
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Chronic Disease
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Female
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Fungi
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Humans
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Male
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Middle Aged
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Mycoses
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Sinusitis
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microbiology
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Skull Base
6.Clinical study on human kallikrein gene 5 messenger RNA expression in breast cancer
Yingjian CHEN ; Xiaoming SUN ; Chengjing HU ; Xinmian WEN
Chinese Journal of Clinical Laboratory Science 1985;0(04):-
Objective The purpose of the current study was to develop a real-time quantitative reverse transcription-PCR method for detection of human kallikrein gene 5(KLK5) mRNA expression,quantify the expression of KLK5 mRNA in malignant and benign breast tissues,and statistically analyze whether KLK5 expression levels correlate with clinicopathologic variables in the patients with breast cancer.Methods Paired breast tissue samples from cancerous and corresponding noncancerous tissues were obtained from 48 patients with breast cancer who underwent surgical resection.The relationship of KLK5 mRNA expression status with various clinicopathologic variables were quantitativly analyzed by real-time RT-PCR.Results KLK5 mRNA expression in cancerous tissues was decreased in 38 of 48(79%) breast cancer patients compared with normal counterparts.The mean expression level of KLK5 mRNA in cancerous tissues was significantly lower than that in noncancerous tissues(P0.05).Conclusion The results of this study indicated that KLK5 mRNA expression was significantly lower in cancerous tissues than that in noncancerous breast tissues,and low expression of KLK5 mRNA correlated with TMN stage,metastasis and ER status.
7.Changes of serum levels of TGF-β1 and IL-6 in patients with diabetic retinopathy and its clinical significance
Yan WEN ; Hui WANG ; Xiaoming YU ; Li YAN
Chinese Journal of Primary Medicine and Pharmacy 2017;24(7):1004-1008,后插3
Objective To explore the changes of serum levels of TGF-β1 and IL-6 in patients with diabetic retinopathy (DR) and its clinical significances.Methods 148 patients with type 2 diabetes mellitus (T2 DM) were divided into diabetic group (T2DM group,n =54),non-proliferative DR group (NDR group,n =49) and proliferative DR group(PDR group,n =45).In the same period,45 healthy subjects were selected as the control group.The clinical data were collected.The serum levels of TGF-β1 and IL-6 were detected.The clinical values of serum levels of TGF-β1 and IL-6 in predicting the progression of DR were analyzed by using the receiver operating characteristic(ROC) curve(ROC curve).Results The levels of TC in the PDR group,NDR group and T2DM group were higher than that in the control group[(5.4 ± 0.6) mmoL/L,(5.6 ± 0.8) mmol/L,(4.6 ± 0.6) mmol/L,F =15.376,P < 0.001].The duration of disease,FPG,HbA1 c,TG,LDL-C in the PDR group were higher than those in the NDR group and T2DM group[(12.4 ±2.9)d,(8.2 ±2.1)d,(5.6 ± 1.7) d,F =109.167,P <0.001;(10.4 ±2.4) mmol/L,(9.2 ± 0.9) mmol/L,(7.6 ± 1.1) mmol/L,(4.6 ± 0.7) mmol/L,F =86.294,P < 0.001;(11.1 ±1.9) %,(9.9 ±2.1)%,(7.8 ±0.5)%,(5.5 ± 0.4)%,F =153.854,P <0.001;(2.6 ±0.7) mmol/L,(2.5 ±0.5) mmol/L,(1.9-± 0.4) mmol/L,(1.6 ± 0.3) mmol/L,F =38.694,P < 0.001;(4.4 ± 0.8) mmol/L,(3.8 ±0.9) mmol/L,(3.1 ±0.7) mmol/L,(2.4 ±0.5) mmol/L,F =87.261,P <0.001],and NDR group > T2DM group >the control group,The level of HDL-C in the PDR group were was lower than those in the NDR group,T2DM group and the control group,and NDR group < T2DM group < the control group,the differences were statistically significant (all P < 0.05).The serum levels of TGF-β1 and IL-6 in the PDR group were higher than those in the NDR group,T2DM group and the control group [(0.92 ± 0.13) ng/mL,(0.64 ± 0.11) ng/mL,(0.47 ± 0.09) ng/mL,(0.31 ±0.07) ng/mL,F =317.850,P < 0.001;(315.74 ± 52.38) pg/mL,(223.49 ± 45.17) pg/mL,(146.35 ± 41.86) pg/mL,(81.07 ± 37.54)pg/mL,F =266.606,P < 0.001],which of the NDR group were higher than the T2DM group and the control group,those of T2DM group were higher than the control group,the differences were statistically significant (all P < 0.05).Pearson correlation analysis showed that the serum levels of TGF-β1 and IL-6 were positively correlated with disease duration,HbAlc and LDL-C (r =0.276,0.314,0.384 and 0.304,0.335,0.416,all P <0.05),while serum levels of TGF-β1 and IL-6 were negatively correlated with HDL-C (r =-0.314 and -0.287,all P < 0.05).The ROC curve showed that the serum levels of TGF-β1 in predicting the progression of DR,the area under the curve was 0.964(95% CI:0.931 ~0.998),when the cutoff value of TGF-β1 was 0.78ng/mL,the sensitivity was 91.1%,and the specificity was 91.8 %,and for the serum levels of IL-6,the area under the curve was 0.913 (95 % CI:0.855 ~ 0.972),when the cutoff value of IL-6 was 280.45 pg/mL,the sensitivity was 80.0%,and the specificity was 91.8%.Conclusion The serum levels of TGF-β1 and IL-6 in patients with DR are increased,and are correlated with the progression of the disease.They can be used as indicators to assess the progression of patients with disease.
8.Study on the in vitro Transdermal Absorption Properties of Galangin
Shixia HUO ; Li GAO ; Xiaoming PENG ; Jixuan WEN ; Ming YAN
China Pharmacy 2017;28(19):2631-2634
OBJECTIVE:To investigate the in vitro transdermal absorption properties of galangin and effects of different pene-tration enhancers on its transdermal behaviors,and provide reference for developing skin preparations using galangin as APIs in the treatment of vitiligo. METHODS:HPLC was used to determine the galangin content. Using cumulative permeation rate (Q) and the transdermal rate(J)of galangin as indexes,the effect of absorption of receiving solution [20%,40% polyethylene glycol 400 (PEG400)solution and 30% ethanol solution] and rotating rate(200,300,400 r/min)on galangin in complete skin of mice were investigated,as well as the azone(1%,3%,5%)and propylene glycol(10%,20%,40%)alone or combination on its penetra-tion promotion. And the transdermal properties of galangin in complete skin,exfoliating skin,dermis skin of rats and mice were de-tected. RESULTS:The best permeability of complete skin of mice showed in 40% PEG400 solution at rotating speed of 300 r/min with 5% azone alone,J was 3.2570 μg/(cm2·h). Js of complete skin,exfoliating skin,dermis skin of mice were 2.7199,34.016, 33.874 μg/(cm2·h),respectively;and those of rats were 0.4996,9.5124,17.406 μg/(cm2·h). CONCLUSIONS:Galangin can penetrate the complete skin of mice and rats,however,the penetration quantity is far lower than exfoliating skin and dermis skin.
9.Expressions of microRNA -126 in the blood plasma in patients with diabetic retinopathy and its mechanism
Hui WANG ; Yan WEN ; Li YAN ; Xiaoming YU
Chinese Journal of Primary Medicine and Pharmacy 2016;23(14):2134-2137
Objective To investigate the expression of microRNA -126(miR -126)in the blood plasma in patients with diabetic retinopathy (DR)and its possible mechanism.Methods 81 patients with DR,65 patients with type 2 diabetes and 50 healthy people (control group)were selected.The expression of miR -126 in plasma was detected by real -time PCR.The serum concentration of VEGF was detected by enzyme -linked immunosorbent assay (ELISA).The correlations between variables were analyzed by Pearson correlation analysis.The value of miR -126 in predicting the occurrence of DR was analyzed by using receiver operating characteristic curve (ROC curves).Results The expressions of miR -126 in plasma in DR patients and type 2 diabetes were lower than the control group,which in DR patients was lower than the type 2 diabetes,the serum concentrations of VEGF in DR patients and type 2 diabe-tes were higher than the control group,which in DR patients was higher than the type 2 diabetes,the differences were statistically significant (all P <0.05).Pearson correlation analysis showed that the expression of miR -126 in plasma was negatively correlated with the concentration of VEGF (r =-0.352,P <0.05).ROC curve analysis showed that the area under the curve for expression level of miR -126 in predicting DR occurrence was 0.848 (95% CI:0.776 -0.919),when the expression level of miR -126 ≤0.47,the sensitivity was 83.1%,and specificity was 80.2%. Conclusion The expression of miR -126 in plasma in DR was reduced,while the serum level of VEGF was elevated.The miR -126 might through negatively regulated VEGF to regulate retinal angiogenesis.It expected to be blood indicators for early detecting DR.
10.Practice of curriculum integration teaching reform for Traditional Chinese Orthopedics
Zhanpeng ZENG ; Feng HUANG ; Xiaoming LENG ; Wenhua CHEN ; Wen SHU
Chinese Journal of Medical Education Research 2016;15(6):630-632
To improve the quality of teaching, teaching reform and exploration on integration of Ttradition Chinese Orthopedics curriculum has been carried out by orthopedics teaching and research section in our school. Putting Traditional Chinese Orthopedics as the framework of curriculum knowledge, the im-portant and difficult points of Human Anatomy and Clinical Medical Science were combined, which builds the overall teaching mode of normal-disease-cases and get some results. The evaluation of teaching effect shows thatthe integration of Traditional Chinese Orthopedicscourse will enable students to lay a solid the-oretical foundation and improve their ability.