1.Critical roles of GRP78 in carcinogenesis, growth and chemoresistance of malignancy
Wen FAN ; Chengyan LUO ; Wenjun CHENG
Journal of International Oncology 2014;41(6):408-411
GRP78,as endoplasmic reticulum resident chaperone,is highly induced by a variety of tumor microenvironmental stresses,such as hypoxia and glucose deprivation.GRP78 is implicated in tumor cell proliferation,apoptosis,invasion,metastasis and angiogenesis.Recent evidence indicates that GRP78 levels is correlated with pathological grade,stage and prognosis for the majority of solid tumors.In addition,GRP78 plays an important role in drug tolerance and knockdown of GRP78 has been shown to sensitize malignant cells.GRP78 could not only be a good biomarker to predict cancer progression and chemo-responsiveness,but also an appealing target for the development of a more selective chemotherapy.
2.Effects of Schisandrae Sphenantherae on Osteogenic Capacity of Osteoblasts
Wenjun ZHAO ; Qin FAN ; Shaobo SUN
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(02):-
Objective To explore the effect of Schisandrae Sphenantherae on proliferation and differentiation of rat osteoblast in vitro. Methods Using the method of serum pharmacology, osteoblast was isolated from calvaria of newborn SD rats by means of modified sequential collagenase digestion and incubated in RPMI 1640 medium. The cell morphology was observed under a phase contrast inverted microscope. MTT assay, ALP activity, mineral node count were detected to determine the status and activities of proliferation and differentiation. Results In 10%, 15% concentration groups after cultured 48 h and 5%, 10% after cultured 72 h, 75% ethanol extracts of Schisandrae Sphenantherae significantly stimulated the proliferation (P
3.Purification of Polysaccharide from Angelica sinensis by Ultrafiltration Membrane Technology
Qin FAN ; Yingdong LI ; Wenjun ZHAO
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(08):-
Objective To isolate and purify polysaccharide from Angelica sinensis by ultrafiltration technology. Methods Extract of polysaccharide of Angelica sinensis was ultrafiltrated with different aperture membrane, the separation parameters on membrane separation efficiency of polysaccharide of Angelica sinensis were optimized by and orthogonal test. Results Polysaccharide of Angelica sinensis was separated with 200, 100, 50, 20 kD membrane. The contents of polysaccharide was 30.47% before ultrafiltration. The main component of Angelica sinensis polysaccharide was the fraction with 200 kD (65.42%). The optimum condition of ultrafiltration was obtained as follow:one times of extract volume, 35 ℃, 0.3 MPa. Conclusion The technology was simple and available, and the content of Angelica sinensis polysaccharide was higher.
4.Peripheral Blood Lymphocytes Apoptosis and Expression of Fas and Bcl-2 in Patients with Secondary Syphilis
Wenjun ZENG ; Yiming FAN ; Zhihua WU
Chinese Journal of Dermatology 2003;0(12):-
Objective To investigate the relationship between apoptosis of peripheral blood lymphocytes (PBLCs) and impaired immunity by assessing the apoptosis and expression of Fas and Bcl-2 in PBLCs of patients with secondary syphilis. Methods Flow cytometry (FCM) was used to detect PBLC apoptosis as well as Fas and Bcl-2 expression in 33 patients with secondary syphilis and 30 normal controls. Results The Fas expression on PBLCs and CD4+ cells was significantly higher in patients than that in controls (P 0.05). The apoptosis levels were significantly higher in PBLCs and CD4+ cells in patients than those in controls (P 0.05). In patients group, the apoptosis levels of both PBLCs and CD4+ cells had a positive correlation with the Fas expression (r = 0.68, P
5.Xpert MTB/RIF assay in rapid diagnosis of tuberculous lymphadenitis
Lin ZHOU ; Qiang XIA ; Wenjun XIE ; Yumei FAN ; Min ZHU
Chinese Journal of Clinical Infectious Diseases 2016;9(6):502-506
Objective To assess the application of Xpert MTB/RIF assay in rapid diagnosis of tuberculous lymphadenitis.Methods Lymph node samples were collected from 1 02 clinically diagnosed patients with lymph node tuberculosis and 65 patients with other lymph node diseases from Zhejiang Provincial Hospital of Traditional Chinese and Western Medicine during January 201 4 and February 201 5. Xpert MTB/RIF,pathological examination and mycobacterium tuberculosis culture were conducted in all specimens of two groups.Taking clinical comprehensive diagnosis as the gold standard,the diagnostic sensitivity,specificity,positive predictive value,negative predictive value and diagnosis efficacy of three detection methods were assessed.The sensitivity of Xpert MTB/RIF in determining rifampicin resistance was analyzed using drug susceptibility testing as gold standard.Results The mean detection time of Xpert MTB/RIF was (2.2 ±0.2)h.Among 1 02 patients,Xpert MTB/RIF achieved higher sensitivity (96.1 %, 98 /1 02 ) than pathological examination (76.5%,78 /1 02 ) and mycobacterium tuberculosis culture (33.3%,34 /1 02)(χ2 =1 6.558 and 87.91 9,both P <0.01 ).Among 65 patients with other lymph node diseases,the specificity of all three detection methods was 1 00%.The receiver-operating-characteristic curve analysis demonstrated that diagnostic performance of Xpert MTB/RIF was better than that of other two methods.In 8 patients resistant to rifampicin confirmed by drug susceptibility testing,Xpert MTB/RIF detected 6 resistant-resistant patients.Conclusion Xpert MTB/RIF shows higher sensitivity and specificity in diagnosis of lymph node tuberculosis with the advantages of easy and rapid performance.
6.The effect of mirror therapy supplemented with motor imaging training on the upper limb function of hemiplegic stroke patients
Hong HOU ; Keshu CAI ; Yabei FAN ; Wenjun DAI ; Chunlei SHAN
Chinese Journal of Physical Medicine and Rehabilitation 2013;(2):112-114
Objective To investigate the effects of mirror therapy supplemented with motor imaging training on the upper extremity functions of hemiplegic stroke patients and on their ability in the activities of daily living (ADL).Methods Forty-four stroke patients were divided into a control group and an experimental group with 22 patients in each.All were given routine rehabilitation treatment.In addition,the experimental group was given 30 minutes of mirror therapy daily supplemented with 15 minutes of motor imaging training.The control group was given routine occupational therapy.All the patients were assessed with Brunnstrom staging,the functional test for the hemiplegic upper extremity-Hong Kong (FTHUE-HK) and the Barthel index (BI) scale before therapy and after 6 weeks.Results After 6 weeks of treatment,both groups showed significant improvements in upper limb function,hand function,and ADL ability.There were significant intra-group differences and significant differences between the experimental and control groups in terms of Brunnstrom staging,FTHUE-HK scores and BI scores.Conclusions Mirror therapy supplemented with motor imaging training can benefit patients suffering hemiplegia in improving their upper limb functioning and their ADL ability.
7.Application of Ocular Vestibular Evoked Myogenic Potential and Caloric Test to Different Stages of Meniere Disease
Wenjun FAN ; Bin LUO ; Ruirui GUAN ; Weiqing XU
Journal of Audiology and Speech Pathology 2017;25(5):488-491
Objective To investigate the characteristics and clinical significance of ocular vestibular evoked myogenic potential (oVEMP) and caloric test in Meniere disease (MD) at different hearing stages.Methods Fifty-five patients(52.8±15.8 years old) with MD were divided into stage 1(9 cases,48.8±13.8 years old), stage 2(9 cases,46.0±16.3 years old), stage 3(23 cases,50.3±13.5 years old) and stage 4(cases 14, 53.5±16.2 years) respectively according to the pure tone audiometry.They were evaluated by oVEMP and caloric test.Results The abnormal rates of oVEMP were 55.6%, 66.7%, 78.3%, 78.6%,and caloric tests were 22.2%, 33.3%, 78.3%,and 85.7% respectively in stage 1, 2, 3, and 4 MD patients.The amplitudes of oVEMP in stage of 1, 2, 3, and 4 MD patients were 4.3±4.0 μV,3.5±2.3 μV,2.5±2.4 μV,and 1.3±0.5 μV,respectively.Conclusion The abnormal rates of oVEMP and caloric tests in MD patients increased with the degree of hearing impairment and the amplitudes of oVEMP were decreased, suggesting that utricle and horizontal semicircular canal injuries were aggravated.
8.Analysis on the screening condition of platelet donors with different blood volume
Shuang XU ; Jieling WU ; Wenjun HUANG ; Xin LIU ; Yaxin FAN
Chinese Journal of Blood Transfusion 2017;30(7):696-699
Objective By studying the different blood volume blood donors machine adopt platelet product aggregation,platelet content,the machine adopt circulating volume,etc,analysis of different blood volume machine adopt donors on appropriate conditions.Methods The base material of randomly selected 307 blood donors,through blood related index in the study of circulating volume,blood volume,gender,platelets,Hct,Pct count before collection,machine adopt of platelet aggregation and the relationship between the acquisition time;different blood volume,blood platelet count grouping machine adopt the different of platelet aggregation rate,different amount of platelets collect blood volume group,the comparison of blood circulation.The use of statistical software SPSS 17.0,data analysis,analysis including multiple regression analysis,chi-square test,t test,etc.Results 1)The lower count of platelets,Hct,Pct count before collection,the longer the acquisition time,and gender and Pct has nothing to do with the acquisition time the longer the acquisition time,the higher the machine adopt the possibility of platelet aggregation.2)Low blood volume and low platelet count group,machine mining platelet aggregation rate is higher.3)Machine adopt donors of blood volume is higher,the machine adopt the platelet collection amount,the more and the less blood circulation.Conclusion According to the different blood volume blood donors check-up indicators,further carries on the reasonable analysis,optimized machine mining scheme,especially to reasonable arrangement of low blood volume blood donors,so as to improve the quality of platelet collection.
9.Effect of Arm Spasticity Inhibitor on Upper Extremities Spasticity with Shoulder Subluxation after Stroke
Yonghong YU ; Fan YANG ; Li ZHOU ; Wenjun ZHAO ; Changsheng WANG ; Haiyan FENG ; Zhe HUANG ; Siwei TENG
Chinese Journal of Rehabilitation Theory and Practice 2015;(1):82-84
Objective To observe the effect of Arm Spasticity Inhibitor worn in rehabilitation training on patients with upper extremities spasticity and shoulder subluxation after stroke. Methods 80 stroke patients with flexor spasm in upper extremities complicated with subluxation of shoulder were divided into treatment group and control group equally. Both groups accepted routine medicine and rehabilitation, and the treatment group wore the Arm Spasticity Inhibitor developed ourselves during the rehabilitation training. Their acromio-humeral interval (AHI) was measured with the X- ray; and they were assessed with modified Ashworth Scale (MAS), range of motion of shoulder (ROM) and elbow before and 2 months after treatment. Results It improved more in the AHI, score of MAS and ROM in the treatment group than in the control group after treatment (P<0.001). Conclusion Wearing Arm Spasticity Inhibitor during rehabilitation training may release the spasticity of upper extremities and shoulder subluxation, and improve shoulder function in patients after stroke.
10.The effects of evodiamine on autophagy in human colon adenocarcinoma Lovo cells
Junlin LI ; Shaoliang HAN ; Xia FAN ; Xi WANG ; Chun ZHANG ; Huaping LIANG ; Wenjun YANG
Chinese Journal of General Surgery 2011;26(1):41-44
Objective To investigate the effects of evodiamine on autophagy of human colon a cleno carcinoma lovo cells, and to explore the role and mechanism of autophagy which was induced by evodiamine (EVO). Methods MTT assay combined with the morphologic changes were used to observe the cell viability. Monodansylcadaverine was used to detect autophagy by fluorospectrophotometer and the confocal laser fluorescence microscopy respectively. Immunoblotting assay was used to observe the microtubule-associated protein 1 light chain 3. Finally, evodiamine combined with 3-methyladenine to detect the cell viability with MTT assay and the apoptosis with the flow cytometry, respectively.Results Evodiamine inhibited the viability of Lovo cells in dose-dependent manner ( P < 0. 05 ), especially in 60 μmol/L that was obviously(60% ). Further more, the cell lysis and cell gap widened was observed by the light microscope. Evo triggered the autophagy, and after inhibition the autophagy by 3-MA, the killing capacities of the Evo was enhanced ( P < 0. 01 ). However, autophagy prohibited the apoptosis pathways.Conclusions Evodiamine can trigger the autophagy, which might play a self-defense role in evodiamineinduced cell death. The cytototoxicity of evodiamine can be augmented by the autophagy inhibitors. The joint application of autophagy regulators with the chemotherapeutic agents might enhance the cell killing effects of chemotherapeutic drugs and show a potent role in cancer drug resistance.