2.Expression of cytokine in mouse graft of corneal allograft rejection
YAN, FENG ; SHI, YAO ; CAI, LI
Chinese Journal of Experimental Ophthalmology 2012;(10):869-872
Background Cytokines play a crucial role in mediating immune tolerance or immune rejection of corneal transplantation.However,the study on the expression of cytokines in corneal graft is seldom.ObjectiveThe purpose of the study is to investigate the change of cytokine expression in allografts at different time points after corneal transplantation.Methods BALB/c and C57BL/6 mice aged 6 to 8-week old were used to establish autologous and allografts keratoplasty models.BALB/c mouse was use as donor and receipt in autologous group,and the cornea of C57BL/6 mouse was used to graft on the BALB/c mouse in the allografts group.The graft inflammation was clinically scored,and graft inflammatory scores of ≥5 or opaciflcation scores of ≥2 were identified as rejection.BALB/c mice were randomized into normal control group(3 mice)and allografts group(15 mice).Reverse transcriptPCR (RT-PCR) was used to detect the expression of interleukin-4 (IL-4) mRNA,interferon-γ (IFN-γ) mRNA,IL-10mRNA and tumor necrosis factor(TNF-α) mRNA in graft 6 hours and 1 day,3,7,14 days after operation.Results The corneal graft opacification score was <2 and inflammatory score was <5 in the 10 mice with autologous keratoplasty until 60 days with the survival rate 100%.The edema,opacification and new blood vessel were seen in the BALB/c mice received allografts keratoplasty.The inflammatory score was ≥ 5 and the opacification score was ≥2 24 days after surgery with the rejection rate 100%,in the allografts group,and the graft survival time was (17.80±4.66)days.RT-PCR showed that IL-4 and IFN-γ were positively expressed,and IL-10 and TNF-α were absently expressed in normal mouse cornea.In the allografts keratoplasty mice,positive responses for IL-4,IFN-γ and IL-10 were found in 6hours after operation,but TNF-α was absent.From 1 day through 3 days after operation,the expressions of IL-4,IFN-γand TNF-α were enhanced but IL-10 was disappeared in the graft.IL-10,IFN-γ and TNF-α were expressed till the 7th day,but on the 14th day,only IL-10 was detected in graft in the allografts keratoplasty mice.Conclusions TNF-αis a main factor among the variety of cytokines that may influent corneal allograft rejection locally.
3.Analysis of risk factors for deep venous thrombosis of lower limbs after laparoscopic surgery
Feng CHEN ; Ying CAI ; Wenjun LI
Journal of Xinxiang Medical College 2017;34(9):833-835
Objective To investigate the risk factors for deep vein thrombosis (DVT) of lower limbs after laparoscopic surgery.Methods A total of 230 patients underwent laparoscopic surgery were selected in Huanggang Central Hospital from January 2014 to August 2016.The patients were divided into DVT group and non-DVT group according to DVT of the lower limbs,and the related risk factors for DVT of lower limbs after laparoscopic surgery were analyzed.Results In the 230 patients,there were 10 patients with DVT of lower limbs and 220 patients without DVT of lower limbs,the incidence of DVT of lower limbs was 4.35% (10/230).Logistic regression analysis showed that age ≥40 years old,operation time ≥120 min,postoperative ambulation time ≥ 30 h,the intraoperative position of high-head and low-foot,plasma D-Dimer level ≥0.5 mg · L-1 were the independent risk factors for DVT of lower limbs after laparoscopic surgery (P < 0.05).Conclusion There is a certain incidence of DVT of the lower limbs after laparoscopic surgery.The effective prevention measures should be taken to reduce the incidence of DVT after laparoscopic surgery according to the related factors of DVT.
4.Clinical application of the anterolateral acromial approach with minimal incision in the treatment of proximal humerus fracture
Junfeng CAI ; Zengchun LI ; Feng YIN
Orthopedic Journal of China 2006;0(04):-
[Objective]To evaluate the clinical application and results of the anterolateral acromial approach with minimal incision in the treatment of proximal humerus fracture.[Method]From December 2006 to December 2008,42 patients with proximal humeral fracture were treated by the anterorlateral acromial approach using locking plate.There were 25 males and 17 females.All the fractures were classified with AO/OTA classification.There were 5 A2-fractures,11A3-fractures,7 B1-fractures,12 B2-fractures,3 C1-fractures,4 C2-fractures.Anterolateral acromial approach with minimal incision was applied and the deltoid muscle was seperated to expose the fracture fragments.Under direct vision the direct and indirect reduction of the fractures were performed.The locking plate was inserted distally beneath the deltoid muscle and between the distal plate and the humeral shaft was adjusted through another small skin incision on the lateral upper arm.Locking screws were inserted to the proximal and distal plate.Operation time,incision length,blood loss,reduction,Neer scores at 1 year were analyzed in different time points.[Result]All the cases were completed with minimal incision.There were significant differences(P
5.Application of ultrasonic miniature probe in preoperative staging of colorectal carcinoma
li, LI ; min, CAI ; feng-tao, CHENG ; bin, WANG
Journal of Shanghai Jiaotong University(Medical Science) 2006;0(10):-
Objective To evaluate the diagnostic accuracy of ultrasound miniature probe(UMP)examination in tumor invasion(T staging) and local lymphatic node metastasis(N staging) for colorectal carcinoma. Methods Preoperative UMP examinations(12 MHz) were performed on 53 patients with colorectal carcinoma undergoing surgeries.The diagnosis accuracy of UMP examination in T and N staging was determined by comparison of the results of operation exploration and histopathologic findings. Results The accuracy in T staging for colorectal carcinoma was 86% with UMP examination,and that for early stage colorectal carcinoma was 100%.The accuracy,sensitivity and specificity in N staging for colorectal carcinoma were 81%,77%,and 84%,respectively with UMP examination. Conclusion UMP examination works well in determining T stage of colorectal carcinoma,especially for early stage colorectal carcinoma and those with tumor stenosis.
6.Sepsis in children with pneumonia: a retrospective analysis.
Chun-feng LIU ; Xu-xu CAI ; Li-jie WANG
Chinese Journal of Pediatrics 2007;45(12):944-944
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Pneumonia
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blood
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complications
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Retrospective Studies
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blood
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complications
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diagnosis
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Tumor Necrosis Factor-alpha
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7.Clinical observation of losantan on hyperuricemia
Zhe-Yi CAI ; Xiu-Li FEI ; Feng WU ;
Chinese Journal of Primary Medicine and Pharmacy 2006;0(10):-
0.05),and losantan was not harmful to the livers and kidneys.Con- clusion There were not only good effect of losantan on curing hyperuricemia,but also it had no bad reactions.
8.Inhibitive effect of interferon-? on hepatic metastasis in human colon cancer orthotopic xenotransplanted in nude mice
Feng LIN ; Qingping CAI ; Qiang WANG ; Jinliang HUAN ; Yang LI
Chinese Journal of General Surgery 2000;0(11):-
Objective To determine the inhibitive effect of interferon-a on hepatic metastasis of colon cancer. Methods Metastatic model of human colon cancer was established by orthotopic implantation of histologically intact human tumor tissue into the colon wall of nude mice.The mice were randomly divided into 4 groups:(1)Control group(receiving saline solution only);(2)5-FU treatment group;(3) IFN-?-2b treatment group;and(4)5-FU combined with IFN-?-2b treatment group(combined group). 5-FU and IFN-?-2b were given via peritoneum injection 1 time/2 days for eight weeks.The mice were killed at nine weeks.The tumors were weighed,the microvessel density(MVD) was detected,and the liver was examined histologically in order to discover the micrometastasis. Results In control group, 5-FU group,IFN-2b group and combined group,the tumor weight was(1.53?0.78)g,(0.87?0.59)g,(0.81?0.43)g and ( 0.23?0.09)g, respectively;the tumor inhibition rate was 0,43.1%,47.1% and 84.9%, respectively;the hepatic metastasis rate was 85.7%,78.6%,21.4% and 0 respectively.MVD in IFN-? group and combined group was significant lower than that in control group and 5-FU group. Conclusions IFN-? can inhibit the growth and hepatic metastasis of orthotopic implanted human colon cancer by inhibiting the tumor angiogenesis.It may be more effective when INF-? combined with cyotoxic agents.
9.Improvement of Quality Standard of Reduqing Oral Liquid
Sheng WANG ; Li CHEN ; Yirong FENG ; Min CAI
Chinese Journal of Information on Traditional Chinese Medicine 2017;24(3):75-77
Objective To improve the quality standard of Reduqing Oral Liquid. Methods TLC was used to identify the featured spots of Glycyrrhizae Radix et Rhizoma, Belamcandae Rhizoma and Scutellariae Radix;HPLC method was usded to detect the contents of Baicalin in Reduqing Oral Liquid. Results TLC could identify the featured spots of Glycyrrhizae Radix et Rhizoma, Belamcandae Rhizoma and Scutellariae Radix; Baicalin was detected in range of 53.60–536.00 μg/mL with good linear relationship (r=0.999 99), the average recovery rate was 99.85%, and RSD was 0.63%(n=6). Conclusion The method is simple, accurate and reliable, which can be applied to the quality control of Reduqing Oral Liquid.
10.Expression and activity of transforming growth factor-β1, endothelial nitric oxide synthase in cavernous vascular structural remodeling of diabetic rats
Tao FENG ; Wenzhou LI ; Wei CAI ; Zhihua WAN ; Shenglan YE
Journal of Endocrine Surgery 2013;7(3):191-194,205
Objective To investigate the expression and activity of transforming growth factor-β1 (TGF-β1)and endothelial nitric oxide synthase(eNOS) in the cavernous vascular structural remodeling of diabetic rats.Methods 52 adult male SD rats were randomly assigned to experimental group(DM) and control group(NDM).In DM group,diabetes was induced in rats 4 days after intraperitoneal injection with streptozotocin.HbA1c was measured on 2,4,8,and 16 weeks after injection.Penile tissues were harvested.The protein expression of TGFβ1 and eNOS in situ was evaluated by the Envision immunohistochemistry.Results Compared to NDM group,the expression of the HbA1c increased significantly in DM group on the 16th week(P <0.01),both the penile erection rate and penile erectile times decreased significantly in DM group on the 16th week (P < 0.01),and the value of eNOS decreased on the 16th week(P <0.01).The expression of TGF-β1 went up in DM group compared to NDM group on the 8th week (P < 0.01) and sustained to the 16th week (P > 0.05).In DM group,we found that TGF-β1 protein in cavernous body of penis was positively related with age in weeks(r =0.947,P <0.01) ; and eNOS in cavernous body of penis was negatively related with age in weeks (r =-0.945,P < 0.01).Meanwhile,the expression of TGF-β was negatively related with the eNOS(r =-0.891,P <0.01).Conclusion Our results indicate that TGF-β1 plays an important role in the pathogenesis of diabetic erectile dysfunction(ED) and TGF-β1 inhibition may be a promising strategy to prevent development of diabetic ED.