1.Effect of high volume hemofiltration on canine oleic acid lung injury
Jianping WU ; Yong GU ; Feng DING
Chinese Journal of Nephrology 1997;0(05):-
Objective To investigate the effects of high volume hemofiltration(HVHF) on cardiopulmonary functions and IL-?plasma levels in lung injury models. Methods Sixteen dogs with oleic acid-induced lung injury were randomly assigned into two groups(A and B). Group A served as control, undergoing mechanical ventilation only. Group B received HVHF and mechanical ventilation. Hemodynamic and respiratory mechanic variables were measured before and 0 mm, 120 mm, 240 mm after the induction of lung injury in both groups. Blood and ultrafiltrate samples were collected at the same time points. Plasma and ultrafiltrate concentrations of IL-? were measured by EUSA. Results There were significant differences between two groups on hemodynamic values for mean pulmonary arterial pressure(mPAP), pulmonary artery wedge pressure(PAWP), pulmonary vascular resistance(PVR) and mean arterial pressure(mABP) (P
2.A preliminary study on developing tissue microarray for the teaching of pathological experiment
Zhengsheng WU ; Qiang WU ; Xiangdong DING ; Feng YANG
Chinese Journal of Medical Education Research 2006;0(08):-
Objective To develop a kind of tissue microarray (TMA) for the teaching of pathological experiment. Methods A series of human normal tissues from heart, lung, liver, stomach, intestine, etc as well as their matched disease tissues were collected and made into TMA parraffin blocks by tissue chip instrument. After section, the slides were stained by hematoxylin-eosin staining and covered by the coverslips which were marked with serial columns and rows. Results All the specimens were arranged in good order on TMA paraffin block and the slides were stained clearly. And the location of each specimen was marked distinctively on TMA slides. Conclusions Compared with classical tissue slides, the TMA slides for the teaching of pathological experiment have many advantages such as good compare, easy memorizing, low expend and simple making. Take together, the TMA for teaching might have a good perspective for application in the future.
3.Association between serum adhesion molecules and free radical metabolism in patients with multi-infarct dementia
Jie WU ; Wei XU ; Qingjie FENG ; Xidong JING ; Ping DING
Chinese Journal of Tissue Engineering Research 2005;9(32):220-222
BACKGROUND: Adhesion molecules are closely associated with inflammation. Inflammation due to white blood cell (WBC) infiltration and free radical injury following brain ischemia are believed to be important factors contributing to the pathogenesis of multi-infarct dementia.OBJECTIVE: To determine the level of serum adhesion molecules and free radicals in patients with multi-infarct dementia to explore the relationship between their levels and multi-infarct dementia.DESIGN: A case-control trial.SETTING: Department of Neurology, Second Affiliated Hospital of Jilin University.PARTICIPANTS: Totally 82 patients with multi-infarct dementia were hospitalized in the Department of Neurology, Second Affiliated Hospital of Jilin University between January 2000 and December 2004. These patients included 32 cases of mild dementia, 21 of moderate dementia, and 29 of severer dementia. The normal controls were 23 concomitant healthy volunteers who came for routine physical examination.METHODS: Enzyme-linked immunosorbent assay (ELISA) and electron spin resonance were used to determine the level of serum soluble intercellular adhesion molecules (ICAM) and vascular cell adhesion molecules (VCAM), as well as oxygen free radical concentration in the normal controls and patients with multi-infarct dementia, and the association between the severity of the illness and the levels of adhesion molecules and oxygen free radicals was analyzed.MAIN OUTCOME MEASURES: Serum levels of ICAM-1 and VCAM-1 and oxygen free radical concentration in the two groups.RESULTS: Totally 82 patients with multi-infarct dementia and 23 healthy controls were included in this study and all enter the result analysis. In multi-infarct dementia patients, the serum levels of soluble ICAM-1 and VCAM-1 and oxygen free radical concentration [(469.00±76.33), (196.00± 45.91) and (1 103.30±98.96) μg/L, respectively] were significantly higher than those of the control group [(601.00±76.30), (4.018±1.656), and (1.295±0.718) μg/g, respectively, t=5.517-6.754, P < 0.01], and the 3 indices were positively correlated with the severity of dementia (r=0.659 4,r=0.697 2, r=0.649 4, respectively, P < 0.05); serum ICAM-1 and VCAM-1 levels were positively correlated with the concentration of oxygen free radicals (r=0.714 7, r=0.732 4, respectively, P < 0.01).CONCLUSION: Serum ICAM-1, VCAM-1 and oxygen free radicals might be implicated in the pathophysiological development of multi-infarct dementia, and their levels increase in parallel with the severity of dementia.
4.The concept of fast track surgery applied in perioperative period of gastric cancer
Ping CHEN ; Guoping DING ; Qi ZHENG ; Zhanbo YI ; Feng WU
Chinese Journal of General Surgery 1997;0(06):-
Objective To explore a method to improve the nutritional state and immune function of patients after radical gastrectomy,and to decrease postoperative complication rate and accelerate recovery from operation.Methods In line with the concept of fast tract surgery (FTS),a new perioperative nutritional schedule was made for patients prior to radical gastrectomy,ehich included preoperative nutritional risk screen and prophylactic enteral nutrition,early postoperative light enteral nutrition,early ambulation and perioperative nursing care.Patients with gastric cancer were randomly assigned into fast track group or a simple control group.New perioperative schedule was executed in the patients of fast track group and traditional nutrition support in control group.After operation,serum albumen was measured to evaluate the patient's nutritional state and serum IgA to evaluate gastrointestinal immune function.In addition,the time to passage of flatus,postoperative recovery time and complication rate after operation were compared.Results Patiens in FTS group (n=35) showed higher serum albumin and serum IgA on d1 and d3 after operation than those in the control group (n=25) (P
5.Clinical features of congenital hepatic ifbrosis in children
Xin WU ; Xiaorang DU ; Jinfang DING ; Mengjin WU ; Shengqiang LUO ; Xingzhong FENG
Journal of Clinical Pediatrics 2016;34(6):444-448
Objective To explore the clinical features of congenital hepatic fibrosis (CHF) in children.MethodsA total of 111 patients diagnosed with CHF during January 2002 to June 2015 were included and divided into children group and adult group according to the age at diagnosis. The clinical data including gender, age, clinical symptoms, signs, laboratory examinations, and imaging characteristics were retrospectively analyzed and compared between two groups.ResultsThere were high incidences of splenomegaly and liver cirrhosis in both children and adult groups, and no difference was found between two groups (P>?0.05). The fatigue, jaundice, and hepatosplenomegaly were more common in children group while the renal cyst and liver cyst were more common in adult group, and the differences were statistically signiifcant (P all?0.05). Compared with adult group, the abnormal rate of ALT, AST, ALP, LAP, TBA, and AST were signiifcantly higher in children group (P all?0.05). ConclusionCHF patients often have hepatocirrhosis and splenomegaly. CHF patients diagnosed in childhood have more sever hepatosplenomegaly, are more in high levels of ALT, AST, ALP, LAP, and TBA, and less in renal cyst and hepatic cyst.
6.Effects of electroacupuncture combined with polysaccharide of gastrodia elate blume on expression of nestin and stem cell factor in thalamic ventroposterolateral nucleus in rats with focal cerebral ischemia.
Huaibin LI ; Feng WU ; Huachun MIAO ; Jian DING ; Jian ZHAO ; Keren XIONG
Chinese Acupuncture & Moxibustion 2015;35(5):474-478
OBJECTIVETo explore the nerve regeneration mechanism of electroacupuncture (EA) combined with polysaccharide of gastrodia elate blume (PGB) for secondary thalamic damage of focal cerebral ischemia.
METHODSForty Sprague-Dawley adult rats were randomly divided into a normal control group, a model group, an EA group, a PGB group and an EA + PGB group, 8 rats in each group. The rat model of right middle cerebral artery occlusion was prepared by suture-occluded method. Two weeks after model establishment, rats in the normal control group and model group received no treatment; rats in the EA group were treated with EA at "Baihui" (GV 20) and left "Zusanli" (ST 36), 30 min per treatment, once a day for 14 successive days; rats in the PGB group were treated with intragastric administration of PGB (100 mg/kg) , once a day for 14 days; rats in the EA + PGB group were treated with EA and PGB treatment, once a day for totally 14 days. The expressions of nestin and stem cell factor (SCF) in thalamic ventroposterolateral nucleus (VPL) were detected by immunohistochemical method.
RESULTSThere were positive cells of nestin in ischemia VPL in the model group, and the number of SCF positive cells was increased compared with that in the normal control group (P<0.05). The number of positive cells of nestin and SCF in ischemia VPL in the EA group, PGB group and the EA + PGB group was increased compared with that in the model group (all P<0.05), and the average gray value of immune positive product was all reduced (all P<0.05). The number of positive cells of nestin and SCF in the EA + PGB group was higher than that in the EA group or the PGB group (all P<0.05).
CONCLUSIONEA combined with PGB can significantly increase the SCF expression in ischemia VPL and promote the proliferation of neural stem cells, which is likely to be one of the nerve regeneration mechanism of acupuncture and medication tor secondary thalamic damage of local cerebral isctemia.
Animals ; Brain Ischemia ; drug therapy ; genetics ; metabolism ; therapy ; Combined Modality Therapy ; Disease Models, Animal ; Drugs, Chinese Herbal ; administration & dosage ; Electroacupuncture ; Gastrodia ; chemistry ; Humans ; Male ; Nestin ; genetics ; metabolism ; Polysaccharides ; administration & dosage ; Rats ; Rats, Sprague-Dawley ; Stem Cell Factor ; genetics ; metabolism ; Thalamic Nuclei ; metabolism
7.Effect of rhubarb on the mitogen-activated protein kinase activity in rats with severe acute pancreatitis
Zhen FENG ; Xiaoping ZOU ; Yanbing DING ; Weiming XIAO ; Jian WU ; Zhaomin XU
Chinese Journal of Emergency Medicine 2008;17(10):1035-1038
Objective To study the effects of rhubarb on the mitogen-activated protein kinase (MAPK) sig-naling transducfon pathway in rats with severe acute pancreatitis (SAP),and to investigate the treatment mecha-nism of rhubarb on SAP. Method One hundred SD rats were provided by from the Animal Center of Nanjing Uni-versity. All animals were randomly divided into sham operation (n=33), SAP (n=33) and rhubarb groups (n=34). SAP model was induced by retrograde injection of 5% sodittm taurocholate. Rhubarb was given with 10% rhubarb decoction (2 mi/100 g) at the time of pancreafitis induction in the rhubarb groups. At 1, 3, 6, and 12 h after the models were established,animals were killed. MAPK activity in pancreatic tissue was examined by West-em blotting and the mRNA levels of TNF-α and IL-6 in pancreatic tissues were detected by RT-PCR. All data were analyzed by SPSS statistical software and statistical differences between values from two sroups were determined by the Student's t -test. Results MAPK activity, TNF-α and IL-6 mRNA levels in pancreatic tissues were signifi-cantly enhanced in the SAP group compared with the sham operation group (all P<0.01). Rhubarb treatment markedlyinhibited MAPK activation,TNF-α,IL 6 mRNA (all p<0.01). Conclusions Rhubarb can alleviate the inflammatory response of SAP by down-regulating MAPK activity.
8.Expression of miR-339-5 p in diffuse large B-cell lymphoma and its significance
Yiyao TU ; Guihong ZHANG ; Kaiyang DING ; Zhengsheng WU ; Zhaohui WANG ; Feng YANG
Chinese Journal of Clinical and Experimental Pathology 2015;(4):409-412,417
Purpose To investigate the relevance between the expression of miR-339-5p and the clinicopathological characteristics in diffuse large B-cell lymphoma (DLBCL). Methods The level of miR-339-5p expression was detected in 123 cases of diffuse large B-cell lymphoma tissues and 20 cases of reactive lymphoid hyperplasia tissues by chromogenic in situ hybridization ( CISH) technique. The expression of Ki-67 and BCL-6 protein was examined in diffuse large B-cell lymphoma tissues by immunohistochemical technique (IHC) (EnVision two-steps), and the correlation between the expression of miR-339-5p and BCL-6 and the clinicopathological param-eters was also analyzed. Results The positive rates of miR-339-5p were 39. 8% (49/123) in DLBCL tissues, which was significantly lower than that in RH tissues (90%, 18/20). The positive rates of miR-339-5p were 31. 0% (22/71) for germinal center B-cell-like (ABC type) DLBCL, which was significantly lower than that in activated B-cell-like (GCB type) DLBCL (27/52, 51. 9%). The low-er expression of miR-339-5p in DLBCL was correlated with late Ann Arbor staging and high-risk group of international prognostic index (P<0. 05). The survival rates of miR-339-5p negative patients of ABC type and GCB type of DLBCL were significantly lower than that of the positive patients (P<0. 01). The levels of miR-339-5p expression in DLBCL were negatively correlated with the levels of BCL-6 expression in DLBCL (P<0. 01). Conclusion The low expression of miR-339-5p might be relatived with the progression and poor prognosis of DLBCL.
9.Expression of pigment epithelium-derived factor in bladder tumour is correlated with interleukin-8 yet not with interleukin-1α.
Chenchen, FENG ; Ming, GUAN ; Qiang, DING ; Yuanfang, ZHANG ; Haowen, JIANG ; Hui, WEN ; Paohsun, WANG ; Zhong, WU
Journal of Huazhong University of Science and Technology (Medical Sciences) 2011;31(1):21-5
Pigment epithelium-derived factor (PEDF) is an antiangiogenic factor which is effective in tumour inhibition in a variety of tumours and has not yet been studied in bladder tumour before. In this study the expression of PEDF, interleukin-1α (IL-1α) and -8 (IL-8) in bladder tumours was investigated. Immunohistochemistry was performed on 64 bladder tumour and 23 normal uroepithelium samples. Expression change of the factors was compared with clinicopathological parameters. Correlations between PEDF, IL-1α and IL-8 were analyzed. None of the factors was in relation to gender, tumour occurrence, and size or onset pattern. PEDF (P=0.014) and IL-1α (P=0.049) expression was down-regulated with grade progression. PEDF expression was lower in normal uroepithelium than in papillary urothelial neoplasm of low malignant potential (PUNLMP) (P=0.000) and carcinoma (P=0.009) whilst IL-1α (P=0.000 and P=0.000 respectively) and IL-8 (P=0.000 and P=0.023 respectively) expression was higher in the same grouping. PEDF expression had a negative correlation with IL-8 in PUNLMP (P=0.049, r=-0.578) as well as in tumour grouping (P=0.033, r=-0.276). Deranged expressional change of PEDF, IL-1α and IL-8 could be in relation to loss of differentiation from normal uroepithelium to papillary lesion and eventually to carcinoma.
10.Red cell distribution width correlates with prognosis and severity of critical illness among medical patients
Fei WANG ; Yong DING ; Tingting JIANG ; Dali YOU ; Binghua YANG ; Feng XU ; Xiao WU
Chinese Journal of Emergency Medicine 2014;23(8):894-897
Objective To investigate the prognostic value of red cell distribution width (RDW) and relationship between RDW and severity of critical illness patients and prognostic role of RDW.Methods This was a prospective observational and diagnostic test study.From February 2011 to May 2013,196 medical patients in ICU were enrolled to study.Blood samples were taken within 24 hrs after admission to ICU for blood routine test and other chemical routine test,including RDW.Acute Physiology and Chronic Health Evaluation Ⅱ (APACHE Ⅱ) score were also calculated.The patients were divided into survival group (n =126) and death group (n =70) based on their hospital outcomes.Differences in RDW levels and APACHE Ⅱ score between survival and death groups were compared with One-way ANOVA.The correlation between RDW and APACHE Ⅱ score were analyzed by Spearman correlation test.Receiver operator curve (ROC) test was used to determine the predictive value of RDW and APACHE Ⅱ for hospital death.Results Both RDW level and APACHE Ⅱ score were significantly higher in death group than those in survival group,whichwere (13.35 ±2.21) vs.(11.34 ±1.32) and (20.43 ±6.41) vs.(13.94 ±6.77) respectively (both P < 0.01).RDW significantly correlated with APACHE Ⅱ score (r =0.309,P <0.01).To predict hospital death area under curve (AUC) of ROC curve by RDW and APACHE Ⅱ score were 0.792 (0.725,0.860) and 0.754 (0.686,0.822) respectively.The best cut-off value was determined by Yoden Index were 12.35 for RDW and 17.5 for APACHE Ⅱ score.The Accuracy of prediction was 76.5% and 70.4% respectively.In addition,all the 12 paticnts whose RDW level > 15.4 were dead.Conclusion RDW level at admission to ICU correlate well with the severity of critical illness.RDW level has an additional predictive value for the prognosis of critical ill patients.