3.Therapeutic effect and mechanism of Xiao'er Zhixie Paste on young chronic diarrhea rats
Zujiao SHI ; Xi JIANG ; Furong CHEN ; Deguang ZHI ; Nan YUE
Drug Evaluation Research 2017;40(4):496-499
Objective To evaluate the therapeutic effect of Xiao'er Zhixie Paste (XZP) by using the young rat model of chronic diarrhea,and to explore its mechanism.Methods Chronic diarrhea model in young rats was induced by ig senna.Rats were ig with Montmorillonite powder of 1.62 g/kg,XZP of low,medium,and high dose (2.03,4.05,and 8.10 g/kg) for treatment.Loose stools rate,loose stool grade and diarrhea index were determined 1 and 3 d after treatment respectively.The water content of small intestine was measured and blood was collected for testing serum succinate dehydrogenase (SDH),amylase,D-xylose by colorimetric determination,testing serum D-lactic acid,IL-1 β,and TNF-α by Elisa after administration.Results The rate of loose stools in XZP 4.05 and 8.10 g/kg dose group,and diarrhea index in 8.10 g/kg dose group significantly reduced after the first treatment.The loose stools rate of XZP 2.03,4.05,and 8.10 g/kg dose group,diarrhea index,serum D-lactic acid level in 4.05,8.10 g/kg group significantly reduced,and serum D-xylose level in 8.10 g/kg dose group significantly increased 3 d after treatment.However,XZP had no significant effect on SDH,amylase activity and IL-1β,TNF-α levels.Conclusion XZP has obvious therapeutic effect on chronic diarrhea in young rats,the mechanism is to increase improve the absorptive function and permeability of intestinal tract.
4.The pediatrician and disaster preparedness.
Xuan XU ; Zhi-Chun FENG ; Xian-Nan CHEN
Chinese Journal of Pediatrics 2009;47(5):321-324
5.Aldehyde seaweed polysaccharide composites serve as artificial liver carriers
Meili YU ; Zhi DU ; Tao HAN ; Yarong WANG ; Jing CHEN ; Hongyue GUO ; Nan LI ; Shuaixing AN
Chinese Journal of Tissue Engineering Research 2013;(25):4660-4667
10.3969/j.issn.2095-4344.2013.25.014
6.Eukaryotic Expression of ?ig-h_3 Gene and Its Effects on Secretion of MMPs in the Human Hepatoma 7721 Cells
Juan TANG ; Jian-Li JIANG ; Hong-Wei ZHOU ; Hua XIONG ; Xiang-Min YANG ; Zhi-Nan CHEN ;
China Biotechnology 2006;0(09):-
?ig-h_3 was first identified as a transforming growth factor-beta1-inducible gene in human lung adenocarcinoma cell line. It encodes for a secreted extracellular matrix (ECM) protein, which is thought to act on cell attachment and ECM composition. Previous study showed that ?ig-h_3 were highly expressed in human hepatoma cell lines and lowly expressed in human normal hepatic cells. The present study aimed to transfect ?ig-h_3 into 7721 cells to investigate its effect on secretion of MMPs in the transfected human hepatoma cells. Full-length ?ig-h_3 gene,cloned by reverse transcription polymerase chain reaction (RT-PCR) was inserted into the eukaryotic expression vector pEGFP-C_2. The recombinant plasmid was transfected into 7721 cells with Lipofectamine2000 and Gelatin-Zymography were adopted to detect the production of MMPs in the transfected cells. Results showed that ?ig-h_3/pEGFP-C_2 recombinant expression plasmid was successfully constructed and achieved high transfection efficiency. MMPs expression of the transfected cells was promoted significantly. These results suggest that overexpression of ?ig-h_3 promoted the production of MMPs, indicating that ?ig-h_3 may play roles in the invasive and metastatic processes of hepatoma.
7.Effect of acupuncture plus thunder-fire moxibustion on MMP-3, TIMP-1 and TGF-β1 in rats with knee osteoarthritis
nan Sai ZHANG ; zhi Li OUYANG ; zhe Xu WANG ; Juan XIANG ; Guo CHEN ; lang Tie LI
Journal of Acupuncture and Tuina Science 2017;15(5):322-327
Objective: To observe the effect of acupuncture plus thunder-fire moxibustion on the expressions of matrix metalloproteinase-3 (MMP-3), tissue inhibitor of metalloproteinase-1 (TIMP-1) and transforming growth factor-β1 (TGF-β1) in cartilage of knee osteoarthritis (KOA) rats, and to explore the mechanism of acupuncture plus thunder-fire moxibustion in the treatment of KOA. Methods:Thirty Sprague-Dawley (SD) rats were randomly divided into a blank control group, a model group and an acupuncture-moxibustion group by random digits table, 10 rats in each group. Rats in the model group and the acupuncture-moxibustion group were injected with papain in the right posterior knee joint to prepare the models. The levels of MMP-3 and TIMP-1 in rat synovium of each group were measured by enzyme-linked immunosorbent assay (ELISA) after 2 weeks of treatment. The level of TGF-β1 was determined by Motic B5 Micro-camera system. Results:The levels of MMP-3 and TIMP-1 in the cartilage of the model group were significantly higher than those in the blank control group (allP<0.01); the levels of MMP-3 and TIMP-1 in the acupuncture-moxibustion group were lower than those in the model group, and the between-group differences were statistically significant (all P<0.05). The levels of MMP-3 and TIMP-1 in the acupuncture-moxibustion group were higher than those in the blank control group, and the differences were statistically significant (all P<0.05). The level of TGF-β1 in cartilage tissues of the model group was significantly lower than that in the blank control group (P<0.01); the level of TGF-β1 in the acupuncture-moxibustion group was higher than that in the model group (P<0.05), but it was lower than that in the blank control group, and the between-group difference was statistically significant (P<0.05). Conclusion: Acupuncture plus thunder-fire moxibustion can effectively recover the abnormal expressions of MMP-3 and TIMP-1 in KOA model rats and somewhat up-regulate TGF-β1, which may be one of its mechanisms of acupuncture plus thunder-fire for KOA.
8.Value of 18F-FDG PET/CT in staging of pancreatic cancer
Jiangyuan YU ; Nan LI ; Yang FAN ; Puyun CHEN ; Yan ZHANG ; Wei ZHAO ; Zhi YANG
Chinese Journal of Nuclear Medicine and Molecular Imaging 2017;37(8):456-459
Objective To evaluate the value of 18F-FDG PET/CT in tumor staging in patients with pancreatic cancer.Methods A total 77 patients (from June 2010 to August 2015;44 males, 33 females, age range 36-83 years) who underwent 18F-FDG PET/CT examination for pancreatic cancer and confirmed with pathology were enrolled in this retrospective study.All patients had not been treated before the PET/CT scanning and received surgery or biopsy 4 weeks after the scanning.Two-sample t test and ROC curve analysis were used for data analysis.Results 18F-FDG uptake was higher in 94.8%(73/77) of pancreatic lesions than that in normal pancreatic tissue.The range of SUVmax of pancreatic lesions was 2.4-13.4(mean: 6.2±2.4).SUVmax of patients with smaller primary lesion (minor axis≤2.0 cm) was significantly lower than that of larger lesion group (minor axis >2.0 cm;t=-2.661, P<0.05).A total of 46 patients underwent lymph node excision, and the mean number of excised lymph nodes per patient was 13.8±9.2.About 56.5%(26/46)cases with lymph nodes metastases were confirmed with pathology.When the cut-off value of minor axis of regional lymph nodes was 0.45 cm, ROC curve showed that the sensitivity, specificity and AUC were 84.8%(39/46), 65.2%(30/46) and 0.788, respectively.When the cut-off value of SUVmax of regional lymph nodes was 2.05, the sensitivity, specificity and AUC were 54.3%(25/46), 80.4%(37/46) and 0.759, respectively.18F-FDG PET/CT changed 18.2%(14/77)of patients′ treatment plan.Conclusions 18F-FDG PET/CT is a useful tool in pancreatic cancer staging.Though 18F-FDG PET/CT has no significant advantages in N-staging, it really helps to make a more accurate M-staging for clinical decision.
9.Clinical analysis of 48 children with lupus nephritis combined with renal insufficiency
Jianfeng FAN ; Xiaorong LIU ; Guiju ZHANG ; Nan ZHOU ; Fanying MENG ; Qun MENG ; Zhi CHEN
Chinese Journal of Applied Clinical Pediatrics 2015;30(16):1262-1264
Objective To analyze the clinical characteristics,prognosis and the risk factors in 48 children with lupus nephritis combined with renal insufficiency.Methods The clinical data from 48 pediatric lupus nephritis with renal insufficiency from January 2000 to January 2013 were retrospectively analyzed.Results Forty-eight cases showed renal insufficiency among 168 children with lupus nephritis,and the incidence rate was 28.6%.The age ranged from 5.8 to 16.2 years.The male to female ratio was 1.0 ∶ 2.2.Among 48 children,43 cases had hematuria,41 cases had heavy proteinuria,25 cases had anaemia and 23 cases had persistent hypertension.Totally 20 cases underwent renal biopsy,and among them,15 cases(75.0%) were diagnosed as diffuse proliferative lupus nephritis(class Ⅳ).The histological activity index was ≥7 in 13 cases and the histological chronicity index was ≥4 in 3 cases.Corticosteroid and/or cytotoxic drugs were used in all of 48 cases.Thirty-five cases had normal urine and renal function,5 cases had stable renal function with persistent proteinuria,4 cases developed into chronic renal failure and 4 cases died.Persistent hypertension (x2 =4.274,P =0.039),the time of starting therapy (x2 =28.830,P =0.000),and histologic chronicity index(P =0.008 8 by Fisher's exact probability test)were the prognostic factors.Conclusions Among pediatric lupus nephritis with renal insufficiency,class Ⅳ (diffuse proliferative lupus nephritis) is the most frequent finding.Persistent hypertension,the time of starting therapy,and histologic chronicity index are the prognostic factors.The outcomes of lupus nephritis with insufficiency can be improved by adequate and appropriate treatment.
10.Clinical analysis of 28 cases of atypical hemolytic uremic syndrome
Guiju ZHANG ; Xiaorong LIU ; Qun MENG ; Jianfeng FAN ; Nan ZHOU ; Zhi CHEN
Chinese Journal of Applied Clinical Pediatrics 2016;31(17):1311-1314
Objective To investigate the treatment of atypical hemolytic uremic syndrome (aHUS) in their acute phase and relate the prognostic factors.Methods Twenty-eight patients with aHUS treated in Department of Nephrology,Beijing Children's Hospital Affiliated to Capital Medical University from January 2011 to March 2015 were collected,the outcomes of the treatment were summarized.Results All the patients were given plasma exchange (PE)treatment,21 patients with hemodialysis (HD) treatment;13 patients with H factor (FH) antibody were further treated with corticosteroid therapy,and 1 patient was treated with the combination of mycophenolate mofetil.Evaluation of patients' indices were conducted at month 3.Out of the 28 patients,there were 13 patients with complete remission;of the 14 patients showed improvement,6 patients were complicated with hypertension and 4 patients with renal dysfunction.One patient,with ongoing hemodialysis,did not show restoration of renal function.There was no death in children.Statistical analysis showed that the acute phase serum creatinine levels were (430.0 ± 124.7) μmol/L and (265.6 ± 90.8)μmol/L for the group with remaining kidney injury and the group with complete remission,respectively,the difference was statistically significant(P <0.01).The levels of FH for the 2 groups were (206.5 ± 134.9) mg/L and(415.4-±214.1) mg/L,and the difference was statistically significant (P < 0.01) as well.Statistical analysis showed that differences were no statistically significant between the 2 groups of patients on their age,platelets,complement C3,complement C4,hemoglobin and lactate dehydrogenase (all P > 0.05).For the group with positive antibody,its average serum creatinine was (346.4 ± 112.5) μmol/L.For the group with negative antibody,its average serum creatinine was (297.0 ± 89.3) μmol/L.The FH for group with positive antibody and group with negative antibody were (307.4 ±187.3) mg/L and (379.8 ± 203.5) mg/L,respectively.The differences were not statistically significant (all P >0.05).Conclusions PE is an effective treatment for aHUS at acute phase,and corticosteroid and immunosuppressive therapy are effective for patients with positive anti-FH antibody.For patients with severe kidney injury at acute phase,the possibility of long-term kidney damage is high.Low concentration of serum FH indicates a poor prognosis.