1.Effect of Radix Rehmanniae Praeparata on footpad inflammation induced by complete Freund's adjuvant in Wistar rats
Xueyan WANG ; Xuesen WEN ; Di ZHANG ; Xiaoni KONG ; Min SHI
Chinese Journal of Biochemical Pharmaceutics 2010;31(2):103-106
Purpose To investigate the anti-inflammatory effect of Radix Rehmanniae Praeparata(RRP)on the footpad inflammation induced by complete Freund's adjuvant(CFA)in rats.Methods CFA 100 μL were injected subcutaneously to the Wistar rats at the pad of right hindfoots.19 days later,the rats were daily siven RRP water extract(0.625,1.250,2.500 g/kg·bw)or dexamethasone(0.5mg/ks·bw)intragastrically.The changes of body weight and foot volume were measured.The indexes of organ and blood were determined at the 29th day,the foot pad was removed,and routine paraffin section was performed.Results The model rats kept foot swelling and lymphocyte infiltrating,and the platelet number decreased.The other indexes were statistically insignificant when compared to the controls.RRP did not display any anti-inflammatory effect on the swollon foots,but thoracic gland and spleen indexes were rescued,and platelet number and creatinine content were increased by RRP administration in a dose-dependent manner.The anti-inflammation of dexamethasone was conspicuous,but the side effects were also significant.Conclusion RRP may be plays an adjunctive action in herbal recipes to treat rheumatoid arthritis.
2.Correlation between CD34+ cell and immature granulocyte in donor's peripheral blood by rhG-CSF
Rui WANG ; Ling LI ; Binzhao WEN ; Linglu DING ; Di ZHONG
Journal of Leukemia & Lymphoma 2009;18(8):478-480
Objective To investigate the correlation between immature granulocyte and CD34+ cells, mononuclear cells (MNC) in donor's peripheral blood by recombinant human granulocyte colony-stimulating factor (rhG-CSF). Methods The stem cell were mobilized by rhG-CSF 7.25-10 μg·kg-1·d-1 from 122 allo-PBSCT donors. Before and after mobilization, to test CD34+ cells of peripheral blood stem cell graft and number of MNC, immature granulocyte, CD34+ cell per patient' weight were calculated. Results White blood cell count and immature granulocyte gradually increased, and reached the peak on the frith day. There was a good relationship between increased immature granulocytes and increased CD34+ cells. The patients all achieved completed donor engraftment and achieved hematopoietic recovery. The chromosome, blood type and HLA type were transformed to be donor's type. Ph1 changed to be negative in CML patients. Conclusion rhG-CSF (7.25~10 μg·kg-1·d-1) had a good effect to mobilize PBSC. There was a good relationship between in-creased immature granulocytes and increased CD34+ cells after mobilization by rhG-CSF. The number of immature granulocytes can reflect indirectly the count of stem/progenitor, so the MNC and immature granulo-cytes can become a threshold of dosage standard.
3.Protein array analysis of serum cytokines in collagen-induced arthritis rats
Fang WANG ; Wen-Feng TAN ; Lei SONG ; Hai-Di ZHANG ;
Chinese Journal of Rheumatology 2003;0(09):-
Objective This study is undertaken to evaluate the changes of serum cytokine levels in different stages of collagen induced arthritis(CIA)rats,to search for the specific proteins related with rheuma- toid arthritis(RA)pathogenesis and inflammation,and to explore the mechanism of RA pathogenesis.Methods Rat cytokine antibody array coated with 19 specific cytokine antibodies was used to examine serum samples at peak and late stage of CIA rats,and were compared to normal cytokine levels.At the same time,ELISA assay for serum TNF-?production was used to verify the array results.Results Among the target cytokines,10 up- regulating cytokines were kept in high expression in different phases of disease,while 1 showed significant change only at the peak of disease.There was no downregnlating cytokines in the results.Serum TNF-?assay results were consistent to the array results.Conclusion Cytokines show different expression in CIA at differ- ent stages,and specific cytokines can be used as the candidates to further study of the RA pathogenesis.This study also provides molecular makers for early diagnosis.
4.Immunogenicities of apoptotic ovarian cancer cells induced by paclitaxel combined with cisplatin
Qinmei FENG ; Ying WANG ; Hailiang GE ; Xia WU ; Wen DI
Chinese Journal of Cancer Biotherapy 1995;0(02):-
Objective:To explore whether apoptotic ovarian cancer cells induced by chemotherapy drugs paclitaxel and cisplatin can be cross-presented by dendritic cells(DCs) and enhance immune responses.Methods:DCs were induced from peripheral blood monocytes cells by GM-CSF/IL-4 for 6 d,then they were stimulated with either apoptotic ovarian cancer HO8910 cells,frozen-thawed HO8910 cells or control cells for 4 h.Their surface markers and phagocytotic ability were detected by flow cytometry and confocal microscopic scanning assay,respectively.DCs of different groups were cultured with CD8+ T cells isolated by magnetic cell sorting,and the ability of DCs to activate CD8+ T cells was evaluated by 3H-TdR,the activity of CTL to kill tumor cells was evaluated by LDH.Production of IFN-? by CD8+ T cells was measured by ELISPOT.Results:Apoptotic ovarian cancer cells induced by chemotherapy drugs paclitaxel and cisplatin could be phagocytized by DCs,which subsequently promoted the maturation and antigen presenting ability of DCs.Apoptotic ovarian cancer cells implused DCs significantly promoted proliferation of CD8+ T cells compared with that of control cells(P
5.Investigation of the situation of vaginal microflora in healthy women population
Fang JI ; Ning ZHANG ; Wen DI ; Qinping LIAO ; Wen WANG ; Xiaoming ZHAO ; Yun SUN ; Zhaohui LIU
Chinese Journal of Obstetrics and Gynecology 2009;44(1):9-12
Objective To assess the distribution of vaginal microflora in healthy women and investigate their cognition of lower reproductive tract infection-related knowledge as well as personal hygiene habits and character of behavior in seeking medical treatment. Methods Total of 1660 healthy women who had physical check-ups at the Medical Center of Renji Hospital were selected and received gynecologic examination, as well as routine examination, pH examination and bacterial culture of the vaginal discharge. In addition, 860 of them were randomly selected for questionnaire survey, in which reproductive tract infection -related knowledge and personal hygiene habits as well as behavior in seeking medical treatment were involved. Results Among the 1660 eensused women, vaginal average pH was 4. 16±0.21. The positive rate of Candida in vaginal discharge routine examination was 3.86% (64/1660), which was lower than that in aerobes culture 7.71% (128/1660). Candida alhicans was the most populous species 78.9% (101/128) ,followed by 7.8% (10/128) and 7.0% (9/128) for the Candida glabrata and Candida krusei respectively. The most populous species of vaginal microflora were hemolytic streptococcus A (63.80%, 1059/1660), Staphylococcus epidermidis (14.28%, 237/1660), and Enterococcus faecalis (D) group ( 11.44%, 190/1660). The questionnaire survey showed that 88.4% (760/860) of 860 women took active treatment when feeling unwell, 92.1% (792/860) of them had good hygiene practices, and only 21.2% (182/860) had the habit of vaginal douching. In addition, 50.0% (430/860) of them had the desire to obtain reproductive health knowledge through out-patient consultation. Conclusions Vulvovaginal Candida disease ranks the first in all types of vaginitis, among which, Candida albicans is the most populous species followed by the Candida glabrata and Candida krusei. Hemolytic streptococcus A and Staphylococcus epidermidis are the most common species of vaginal mieroflora in healthy women. The censused women have high awareness of reproductive health care and pay mueh attention to common gynecologic diseases such as lower reproductive tract infection. Nevertheless, we should strengthen the public education of reproductive health-related knowledge.
6.Significance of Peptide Brain Natriuretic Peptide in Children with Acute Congestive Heart Failure
wen-di, WANG ; jing-dong, LIU ; shao-chun, MA ; jin-ju, WANG
Journal of Applied Clinical Pediatrics 2006;0(13):-
Objective To detect brain natriuretic peptide(BNPs) level in serum in order to confirm its applical value.Methods Forty-eight patients with congestive heart failure(CHF) were chosen,which included 36 patients with pneumonia,12 patients with congenital heart diseases.Forty heathy children were chosen as control group.BNPs level of two groups were detected by enzyme label.Results The level of BNP in patients with CHF(that′s positive group) was obviously higher than that in control group in the stage of CHF and recoverty(t=14.30,20.38 all P0.05),this included that the cardiac function had significantly changes in the stage of CHF,at the same time,the level of BNP had negative correlation to CI and LVEF(r=-0.61,-0.79 all P
7.Effects of cisplatin-alginate conjugate liposomes in cervical cancer-bearing nude mice
Hua GAO ; Yunfei WANG ; Wenjing WANG ; Meiying ZHANG ; Qing LI ; Ying DING ; Wen DI
Journal of Shanghai Jiaotong University(Medical Science) 2017;37(5):606-610
Objective · To establish human cervical cancer xenografts in nude mice and investigate the antitumor therapeutic effects and safety of EGF modified cisplatin-alginate conjugate liposomes. Methods · Cervical cancer-bearing mouse model was established by subcutaneously injecting Hela cells in nude mice. Generalstate and xenograft growth of the mice were observed. Tumor volumes, tumor weights, and the body weights of mice during the treatment were recorded and analyzed. The expression levels of EGFR in xenografts were detected by immunohistochemistry. Results · ① EGFR was highly expressed in the xenografts. ② CS-EGF-Lip inhibited the tumor growth effectively (P=0.000). ③ The inhibition rates of tumor volume and tumor weight of CS-EGF-Lip were 80.22% and 58.60% respectively, which were betterthan those of cisplatin (P=0.000). ④ CS-EGF-Lip had minimal influence on body weight in mice (P=0.000). Conclusion · CS-EGF-Lip has more effective antitumoreffects than cisplatin in cervical cancer-bearing mice, which can inhibit tumor growth of solid tumors with enhanced efficacy and safety.
8.A survey of nosocomial infections in ESRD patients undergoing blood purification
Hui-Di ZHANG ; Wei-Ming WANG ; Jian WANG ; Ping ZHU ; Wen ZHANG ; Nan CHEN ;
Chinese Journal of Infection and Chemotherapy 2006;0(04):-
Objective To investigate the morbidity and characteristic of nosocomial infections in end stage renal disease(ESRD) patients undergoing blood purification.Methods Medical records of ESRD patients undergoing blood purification from 2004 to 2005 were enrolled in this retrospective study of hospitalized cases.The clinical data of nosocomial infections in hemodialysis (HD)and peritoneal dialysis(PD)patients were analyzed separately.Results Nosocomial infection was identified in 76 of the 400 enrolled patients.In HD patients,pulmonary infection was the most common nosocomial infection(53.3%),most due to gram-negative microorganisms,followed by bloodstream(16.7%)and urinary tract infection(15%),most of both were due to gram-positive bacteria.Pulmonary infection was usually complicated.Bloodstream infection was associated with the duration of placement of central vein catheters.Asymptomatic bacteriuria accounted for most of the urinary tract infection.In PD patients, most infections were pulmonary infection(65.5%),mainly caused by fungal pathogens,followed by peritonitis(20.7%), mainly due to gram-positive bacteria.Certain proportion of infections in both groups was caused by multiple microorganisms or identified in multiple sites.Conclusions The prevalence of nosocomial infection is high in hospitalized patients undergoing blood purification.The infection is complicated in terms of pathogen and clinical picture.Pulmonary infection is the most common in- fection.The prevalence of fungal infection is increasing.Effective prevention and therapeutic measures should be applied more vigorously in ESRD patients.
9.Effect of resveratrol on the oxidative stress and antioxidant levels of different skeletal muscle mitochondrial subpopulations and insulin sensitivity in rats fed with high-fat diet
Lulu CHEN ; Haohao ZHANG ; Juan ZHENG ; Xiang HU ; Wen KONG ; Di HU ; Suxing WANG
Chinese Journal of Endocrinology and Metabolism 2012;28(1):58-62
ObjectiveTo observe the effect of resveratrol on the oxidative stress and antioxidant levels of different mitochondrial subpopulations in the skeletal muscle and insulin sensitivity of rats fed with high-fat diet.MethodsMale SD rats,aged 8 weeks,were divided into normal chow (NC) group,high-fat diet(HF) group,high-fat diet plus resveratrol ( HFR ) group.After intervention for 8 weeks,the impacts of resveratrol on oxidative stress levels and antioxidant enzymes activities in subsarcolemmal ( SS ) and intermyofibrillar ( IMF ) mitochondria from skeletal muscle as well as general and skeletal mascle insulin sensitivity were assessed.ResultsCompared with NC group, insulin sensitivity was significantly reduced while reactiveoxygenspecies (ROS)and malondialdehyde(MDA) levels in SS and IMF mitochondria increased in HF group ( all P<0.01 ).In addition,antioxidant enzyme activities were significantly decreased in SS mitochondrial and increased in IMF mitochondrial ( both P < 0.05 ).Compared with HF group,the insulin sensitivity in HFR group was significantly improved.Moreover,the activities of antioxidant enzymes in SS and IMF mitochondrial were increased,and the oxidative stress levels returned to normal ( P < 0.05 ).ConclusionResveratrol notably improves the oxidative stress of different skeletal muscle mitochondrial subpopulations and insulin resistance in rats fed with high-fat diet.
10.Synergistic antitumor activity of chemotherapy and immunotherapy in the treatment of established rat solid tumors
Qinmei FENG ; Xia WU ; Ping LIU ; Mei PENG ; Ying WANG ; Wen DI
Chinese Journal of Microbiology and Immunology 2011;31(7):632-637
Objective To explore immunotherapy effective combined with active immunotherapy in different time according rats bearing-tumor after paclitaxel and carboplatin chemotherapy, and to identify the optimization time and strategy of vaccine and seek rational chemo-immunotherapy strategies in ovarian cancer treatment. Methods The dynamic immunocytes number and function in established tumor treated with paclitaxel and carboplatin chemotherapy were investigated. The changes of established tumor volume and immune function of different groups were observed according to combining different time after chemotherapy and vaccine. Results Lymphopenia was observed and the number of lymphocyte subset decreased remarkably on the 6th day, but all cells were found almost recovered on 15th day after chemotherapy. There is the process of immune-enhancing from post-chemotherapy 6 day to 10 day and reversal of immune suppression temporary. The combination post-chemotherapy 6 day with CTL caused a significantly delayed tumor growth in both tumor models and induced significant the proliferation of T lymphocyte by [H] 3 releasing. The number of CD8+T cell is the highest, but the expression of Tr cell was lowest in the group of post-chemotherapy 6 day with CTL. Furthermore, the ability of CD8+T secretion IFN-γ is the most in the post-chemotherapy 6 day with immunotherapy groups. Conclusion Combinational paclitaxel and carboplatin chemotherapy has synergistic effects with active immunotherapy boosting against tumor during window periods, where 6 days after chemotherapy with the most decreased number of lymphocytes in the animal periphery might represent the optimal checkpoint for the immune therapy against tumors. Therefore, monitoring the immune status of tumor patients might become one of the important prerequisites for the effective immune therapy when designing the comprehensive therapeutic strategies.