1.Color echocardiography evaluating long-term effectiveness of closed mitral commissurotomy
Zhifang XU ; Ping WANG ; He ZENG ; Jiechun ZHANG
Academic Journal of Second Military Medical University 1999;0(12):-
A retrospective review of 47 patients underwent closed mitral commissurotomy(CMC) was conducted. It was revealed that the post-operative color echocardiography indices (MVA ,MVG,CO) were significantly improved compared with those of pre-operation (P8 had NYHA class Ⅰ-Ⅱ in 5 years(P
2.Morphological observation of embryonic stem cell-derived neurons after transplanted into A?-injured rat hippocampus
Zhifang LI ; Jun TANG ; Lusi LI ; Li YANG ; Haiwei XU
Journal of Third Military Medical University 1988;0(06):-
Objective To observe the morphology of embryonic stem cell-derived neurons after transplanted into A?-injured rat hippocampus. Methods Neural precursor cells (NPCs) were generated from mouse embryonic stem cells (ESCs) expressing EGFP with modified serum-free methods and then transplanted into the hippocampus of A?1-40-injuried rats. The morphology, neurotransmitter phenotypes and receptors of EGFP-positive donor cells were observed with immunofluorescene methods. Results The engrafted NPCs survived and differentiated into glutamatergic and GABAergic neurons and expressed both glutamatergic and GABAergic neurotransmitter receptors. Synaptophysin-positive dots were found surrounding somata and dendrites of transplanted neurons, suggesting the presence of presynaptic terminals adjacent to their membranes. Conclusion NPCs derived from ESCs can differentiate into excitatory and inhibitory neurons after grafted into Alzheimer's disease model rats, and maybe form synapse with the host neurons.
3.Effect of Panax Notoginseng Saponins on Cerebral Water Content and Thrombin of Intracerebral Hemorrhage Rats
Xuesong ZHAO ; Zhigang CHEN ; Fang GAO ; Zhifang XU
Chinese Journal of Information on Traditional Chinese Medicine 2014;(2):46-48
Objective To investigate the effects of Panax notoginseng saponins (PNS) on the cerebral water content and thrombin in the rats with intracerebral hemorrhage (ICH), and explore its mechnism for treating ICH. Methods SD male rats were randomly divided into blank group, sham operation group, model group and treatment group, and time points of 6, 24, 48, 72 h and 7 d were observed. ICH rat model was induced by collagenase and heparin in saline solution injected into caudate nucleus. The treatment group was injected PNS intraperitoneally once a day, and the cerebral water content was assessed by dry-wet weight method. Both content of fibrinogen (FIB) and thrombin clotting time (TT) in 48 h were measured. Results The cerebral water content of model group increased at every time point compared with blank group and sham operation group (P<0.05). The cerebral water content of treatment group was significantly decreased at every time point except for 6 h compared with model group (P<0.05). FIB of treatment group decreased compared with model group (P<0.05), while TT of treatment group was not significantly decreased (P>0.05). Conclusion PNS may play a role in treating ICH by decreasing cerebral water content, FIB and TT of ICH rats.
4.Mutation detection in the interaction domains of NRF2 and KEAP1 in lung cancer cell lines
Jianping ZHOU ; Zhifang LI ; Lixuan LIANG ; De XU
Chongqing Medicine 2017;46(5):590-592
Objective To detect the interaction domains' gene mutations of KEAP1 and NRF2 in non-small-cell lung cancer cell lines,and to analyze the significance of these mutations on the study of lung cancer cell lines.Methods Six non-small-cell lung cancer cell lines were used as the research materials.The 2nd to 6th exons of KEAP1 and the coding sequences of DLG and ETGE motif were amplified by PCR,and the products were used for gene sequencing analysis.Obtained gene sequences were analyzed using NCBI databases to get the base locations of gene mutations,as well as the subsequent amino acid sequence changes.Meanwhile,the relative intracellular reactive oxygen species (ROS) concentrations in the tested cell lines were detected and used in the analysis of abnormal NRF2 transcriptional activity in lung cancer cell.Results Four mutations were detected in the 4th exon of KEAP1 gene from all the 6 cancer cell lines,several other missense mutations were also investigated in the 3rd exon of KEAP1 from some cancer cell lines.Multiple genetic variations were found in all the NRF2-ETGE motif-encoding sequences of the 6 cancer cell lines.All 6 cancer cell lines were found to have higher ROS concentration than the lung germ cell line.Conclusion Lung cancer cells generally contain high levels of ROS as well as gene mutations in KEAP1 and NRF2 genes which lead to abnormal transcriptional activity of NRF2 in lung cancer cell lines.
5.Analysis of cognitive function and its influenced factors in patients with prostate cancer after maximal androgen blockade therapy
Nan WU ; Sheng ZENG ; Yukun MA ; Yong XU ; Zhifang MA
Chinese Journal of Urology 2016;37(5):349-353
Objective To investigate the cognitive function of patients with prostate cancer after maximal androgen blockade therapy and its influenced factors,and to provide a new way for early prevention strategy.Methods Montreal cognitive assessment (MoCA),hospital anxiety depression scale (HAD),social support rating scale (SSRS) and self-designed questionnaire were used in 56 cases treated with maximum androgen blockade therapy for more than six months and 37 cases who underwent radical prostatectomy treatment to evaluate their cognitive function and collect the observation indexes between January 2013 and October 2015.Based on MoCA score,all patients were divided into cognitive dysfunction group (n =40) and normal cognitive function group (n =53).The observation indexes in two groups were compared and cognitive function with different treatment in two groups were analyzed.The changes on the influencing factors of cognitive function in patients were filtered using multivariable logistic regression analysis.Results In the cognitive dysfunction group and normal group,the proportion of MAB treatment was 80.0% (32/40) vs.45.3% (24/53),the age was 73.7 vs.73.7 years,the proportion of solitary was 32.5% (13/40) vs.13.2% (7/53),the proportion of depressive symptoms was 87.5% (35/40) vs.62.3% (33/53),the social support level was 32.5 vs.41.1 and the proportion of testosterone decreased was 95.0% (38/40) vs.45.3% (24/53).All events showed statistically significant differences (P <0.05).Compared MAB treatment group with radical surgical treatment group,the testosterone level was (0.27-±O.15) vs.(12.14 ± 1.86) nmol/L,visual space and executive function score was 4.18 ±0.79 vs.4.54 ±0.56,attention score was 4.73 ±0.99 vs.5.16 ±0.79,delayed memory score was 3.75 ± 1.21 vs.4.30 ± 1.05 and MoCA score was 26.13 ± 1.48 vs.27.27 ± 1.39,which all showed the statistically significant difference (P < 0.05).The results of multiple regression analysis showed that age (OR =1.183,95% CI 1.135-1.223),depressive symptoms (OR =1.092,95% CI 1.047-1.149),social support (OR =0.897,95% CI O.838-0.956),testosterone (OR =2.105,95% CI 1.369-4.083) were the influenced factors of cognitive dysfunction.Conclusions The incidence of cognitive dysfunction in patients with prostate cancer after maximal androgen blockade therapy more than six months was higher than others.Age,depression,social support level and testosterone levels were related to the occurrence of cognitive dysfunction.
6.Quality evaluation of Semen Cassiae by both indicated component determination and HPLC fingerprint
Jingbin WANG ; Xu ZHOU ; Zhifang HU ; Yongshen REN ; Xiaohe XIAO
Chinese Traditional and Herbal Drugs 1994;0(06):-
Objective To evaluate the quality of Semen Cassiae from different habitats objectively. Methods To determine the content of chryso-phanic according to ChP and establish HPLC fingerprints with the gradient elution solvent composed of acetonitrile and 1% HAC. A C18 column (250 mm?4.6 mm, 5 ?m) was used, flow rate: 1 mL/min, detecting wavelength: 254 nm, and the column temperature: room temperature. The clustering analysis was carried out by SAS software according to the content of chrysophanic and similarity of HPLC fingerprints obtained by the software of similarity analysis. Results The established HPLC fingerprint has desirable precision, reproducibility, and stability. The content of chrysophanic and HPLC fingerprints of Semen Cassiae from various habitats are different, which differs from the habitats. The content range of chrysophanic in Semen Cassiae is 0.037%-0.170% and the similarity is 0.864-0.962. Conclusion The method indicates the difference of the chemical component in Semen Cassiae from various habitats and can be used as a quality control method for Semen Cassiae.
7.A study on the correlation between humanistic care ability of nursing students and their family en-vironment in western Guangxi
Zhifang XU ; Ximei SI ; Yelai NIU ; Chunling LI
Chinese Journal of Practical Nursing 2016;32(12):885-889
Objective To explore the correlation between humanistic care ability of nursing students and their family environmental factors. Methods A sample of 198 nursing students was recruited with cluster sampling method. Demographic data, humanistic caring capacity, and family environmental factors were collected using a self-designed questionnaire, Caring Ability- Inventory (CAI) and Family Environment Scale (FES- CV) and then an analysis was conducted. Results Han nationality students accounted for 32.83%(65/198), minority students accounted for 67.17%(133/198) . The total average score of humanistic care ability was 190.79±18.84, the average score of items was 5.16±0.99. There were significant differences between our participants and those regarded as international norms on the three dimensions of humanistic care ability (t=-16.27--8.12, P < 0.01). The total average score of family environment was 42.57±8.88. Significant differences were also presented between our participants and those of domestic norms on the ten factors of the family environment (t=-10.94-30.04, P < 0.01). The significant correlation was not documented between the total scores of humanistic care ability and family environment. However, the correlations were documented between the six domains of family environment (intimacy, emotional expression, knowledge, entertainment, contradiction, sense of organization) and the total score and each dimension of humanistic caring capacity (P < 0.05 or 0.01). Conclusions The humanistic care ability of nursing students in minority area is relatively low. The humanistic care ability and family environment are correlated on the multi- dimen-sional facets. School educational strategies should be combined with family environment factors of nursing students to jointly promote the humanistic care ability of nursing students.
9.Features of the NCAM+c-Kit+ subset of hepatic progenitor cells in intrahepatic cholangiocarcinoma
Yanling HE ; Jing XU ; Lihong YANG ; Lingmin LI ; Yanhong TAN ; Xiuhua CHEN ; Zhifang XU
Chinese Journal of Hepatobiliary Surgery 2013;19(12):934-937
Objective To identify the features of the NCAM+ c-Kit+ subset of hepatic progenitor cells in the intrahepatic cholangiocarcinoma (ICC) cell line RBE.Method Magnetic activated cell sorting was used to isolate NCAM+ c-Kit+/NCAM-c-Kit-subset cells,which were tested for hepatic progenitor cell properties and proliferation,colony formation,and invasive abilities in nude mice.Resuits The cell proliferation ability of NCAM+c-Kit+ subset cells was stronger than that of NCAMc-Kit-subset cells (P<0.01).In serum-free condition,the number of colonies formed by NCAM+c-Kit+ subset cells was more than that of NCAM-c-Kit-cells (P<0.01).1 × 104 NCAM+c-Kit+ cells were enough to form tumors in nude mice after subcutaneous inoculation for two weeks,while 1 × 106 NCAM-c-Kit-cells were necessary to form tumors for three weeks.The tumor formation rate of NCAM+c-Kit+ cells was higher than that of NCAM-c-Kit-cells (P=0.04).Conclusions It is possible that NCAM+c-Kit+ subset cells in RBE have the properties of hepatic progenitor cells,and NCAM combined with c-Kit might be a valuable marker for isolating and purifying ICC stem/progenitor cells.
10.Observations on the Therapeutic Effect of Gentle Moxibustion on Old Interphalangeal Collateral Ligament Injury
Weihua LI ; Chenguang DING ; Yulei LIANG ; Jianchao XU ; Zhifang ZHANG ; Jinxian CUI ; Pengfei SUN
Shanghai Journal of Acupuncture and Moxibustion 2015;(4):360-361
ObjectiveTo investigate the clinical efficacy of gentle moxibustion in treating old interphalangeal collateral ligament injury.MethodSixty patients were randomly allocated to two groups. The treatment group of 30 patients received gentle moxibustion 20-30 min once daily for two consecutive courses of treatment. The control group of 30 patients received TDP irradiation 20-30 min once daily for two consecutive courses of treatment.ResultThe excellent rate and the total excellent rate were 56.7% and 83.3%, respectively, in the treatment group and 36.7% and 76.7%, respectively, in the control group; there were statistically significant differences between the two groups (P<0.01).ConclusionGentle moxibustion has a marked therapeutic effect on old interphalangeal collateral ligament injury.