1.The monitoring and treatment to sleeping breath suspension
Zheng-Xiang ZHU ; Zheng-Ming SUN ;
Chinese Medical Equipment Journal 1989;0(02):-
Monitoring,recording and treatment can be made to sleeping breath suspension patient using the present physiology recorder,oximeter and breath sensor,change-over interface,therapy device.When it lasts more than 10 seconds for patient's breath suspension,stimulator will be on automatically in order to revive the patient and off automatically after the patient's breath is recovered.
2.Allogeneic Mixed Melanocyte Lymphocyte Culture: An Experimental Study
Leihong XIANG ; Zhizhong ZHENG ; Luchuan ZHU
Chinese Journal of Dermatology 1995;0(01):-
Objective To investigate the melanocyte lymphocyte reacion when the allogeneic lymphocytes are cultured with normal melanocytes. Methods 3H-thymidine was incorporated into the mixed culture and the transformation and proliferation rates of lymphocytes were detected by liquid scintillation counting and expressed as cpm. Electron microscopy was used to observe the ultrastructure of melanocytes after mixed culture. Results The results of lymphocyte proliferation were expressed by the stimulation indexes. The stimulation indexes in active vitiligo group was significantly different from that in stable vitiligo group and normal controls. The stimulation indexes of the melanocyte stimulated group was significantly different from that of ConA stimulated group. In the mixed melanocyte lymphocyte reaction, the allogeneic lymphocytes had little effect on the melanocytes. The ultrastructure of the melanocytes in the mixed culture showed normal morphology and normal function of synthesis of melanin. Conclusion As a specific antigen in mixed melanocyte lymphocyte reaction, melanocyte has a weak effect on the lymphocytes. The melanocytes from stable stage vitiligo patients seem more suitble to be allografted.
3.Pharmacodynamics and pharmacokinetics of target controlled infusion of atracurium besylate on liver function of different age and gender
Xianbao HU ; Xiang ZHENG ; Jun ZHU ; Guofei ZHU
Chinese Journal of Biochemical Pharmaceutics 2016;36(11):186-188
Objective To analyze the effects of different age and gender on the efficacy and pharmacokinetics of the target controlled infusion of atracurium besylate on liver dysfunction.Methods 160 case of patients with liver dysfunction and undergoing elective general anesthesia operation were divided into four groups according to their age and gender, 40 cases in each group:group A (age≥65 years old, male), group B (age≥65 years old, female), group C (age<65 years old, male), group D (age<65 years old, female).The patients received one-time double dose ED95 atracurium besylate, pharmacodynamic indexes and pharmacokinetic parameters were compared.Results The four groups of patients with block onset time, block maintenance time, clinical duration of T25%, in vivo role time T95%, muscle relaxation recovery index were compared, the difference was not statistically significant.The preoperative and postoperative 24h, four groups of patients with liver function ( alanine aminotransferase, aspartate aminotransferase, albumin, bilirubin) and renal function ( creatinine, urea nitrogen) were compared, the difference was not statistically significant.There was no significant difference between the four groups in the plasma concentrations of the substance to be measured, the peak time, the area under the curve and the elimination half lives.Conclusion For the patients with liver dysfunction, the target controlled infusion of atracurium besylate in general anesthesia operation, gender and age were not considered.
4.Recent Advances in Vaccines and Drugs Against the Ebola Virus.
Xiang ZHU ; Chenguang YAO ; Yanhong WEI ; Zheng KOU ; Kanghong HU
Chinese Journal of Virology 2015;31(3):287-292
The Ebola virus belongs to the Filovirus family, which causes Ebola hemorrhagic fever (mortality, 25%-90%). An outbreak of infection by the Ebola virus is sweeping across West Africa, leading to high mortality and worldwide panic. The Ebola virus has caused a serious threat to public health, so intensive scientific studies have been carried out. Several vaccines (e.g., rVSV-ZEBOV, ChAd3-ZEBOV) have been put into clinical trials and antiviral drugs (e.g., TKM-Ebola, ZMAPP) have been administered in the emergency setting to patients infected by the Ebola virus. Here, recent advances in vaccines and drugs against the Ebola virus are reviewed.
Animals
;
Antiviral Agents
;
administration & dosage
;
Ebola Vaccines
;
administration & dosage
;
genetics
;
immunology
;
Ebolavirus
;
drug effects
;
genetics
;
immunology
;
physiology
;
Hemorrhagic Fever, Ebola
;
drug therapy
;
prevention & control
;
virology
;
Humans
5.Investigations of the current situation of the use of standard medical terminologies in journals
Xiang XIE ; Yuan CHEN ; Chao ZHENG ; Xueqiong ZHU
Chinese Journal of Medical Science Research Management 2015;28(5):378-381
Objective To investigate the current situation of the use of standard medical terminologies in journal, and analysis the reasons and then find the solutions.Methods Through searching the WANFANG database, we selected the nonstandard and standard terms of 100 common medical terminologies as Search Words, all the fields as Search Options to trace articles in periodicals from Jan.2011 to Dec.2013.After getting the top ten ranked words, the rate of use of the standard terms was analyzed.Results Some journals still use nonstandard terms, standard terms were mixed up with nonstandard terms in all of the 100 medical terminologies.Conclusions More attention should be paid to the use of the standard medical terms in periodicals to unify and standardize the use of medical terms.
6.Narrow-band ultraviolet-B(311 nm)regulates dendrite formation in cultured B16 melanoma cells
Fuguo ZUO ; Leihong XIANG ; Yong ZHANG ; Yue HU ; Luchuan ZHU ; Zhizhong ZHENG
Chinese Journal of Dermatology 2009;42(6):417-420
Objective To investigate the effect ofnarrow-band ultraviolet-B(NB-UVB)(311 nm)on dendrite formation in B16 melanoma cells.Methods B16 melanoma cells were irradiated with various doses of NB-UVB(0,25,50,100,200,300 mJ/cm2).Atier additional culture of varying durations,irradiated cells were harvested and subjected to the observation of morphological changes and cell cytoskeleton F-actin microfilaments by phase contrast microscopy and laser scanning confocal microscopy(LSCM).respectively,and to the detection of cell proliferation bv MTT colorimetric assay.Pull down assay was performed to detect the activity of GTP-RhoAA and GTP-Rac1 in B16 cells before and after UVB irradiation.Results Twenty-four hours after irradiation with UVB of 100 mJ/cm2.an increase was observed in the cell body of B16 cells which appeared in sphericity,as well as in the number of dendrites(P<0.01)which showed a branch-like appearance.compared with non-irradiated cells which had 2-3 dendrites and obscure branches.LSCM revealed that F-actin microfilaments in B16 cells were well organized with clear textures before irradiation;after irradiation wim NB-UVB of 100 mJ/cm2.stress fibers were disassembled and disrupted and the texture became unclear,which was observed as early as 30 minutes and became more and more evident,and at 6 hours the stress fibers displayed a clumping appearance with obscure textures.Following the irradiation with NB-UVB of 100 mJ/cm2,the expression level of GTP-Rac 1 protein increased at l 5 minutes,and.at 30minutes,reached 2 times of that observed in nonirradiated cells,then decreased a liale,but still remained elevated at 60 minutes and 120 minutes,compared to unirradiated cells;meanwhile.the level of GTP-RhoA dropped a little at 30 minutes,then gradually increased and,at 120 minutes.reached 1.6 times of that observed in unirradiated cells.Conclusion Narrow-band UVB(311 nm)can promote dendrite formation.likely via regulating the expression of GTP-Racl and GTP-RhoA in B16 melanoma cells.
7.The effects of reproducibility of apparent diffusion coefficient measurements obtained with respiratory motion compensation techniques
Guimian ZHONG ; Zhiming XIANG ; Qianwen LIANG ; Zhu AI ; Jianke LIANG ; Hexu ZHENG ; Changhong LIANG
Chinese Journal of Radiology 2016;50(9):686-690
Objective To evaluate the reproducibility of normal liver ADC measurements by different respiratory motion compensation techniques. Methods A total of 31 young healthy volunteers who are 20 to 40 years old without any hepatic diseases were selected to research. Each volunteer underwent liver DWI twice in 24 hours with the same parameters and location. The imaging was performed with free-breath(FB), breathhold(BH), rspiratory-triggered(RT)and navigator-triggered(NT)techniques, and the ADC values of the left hepatic lobe and right hepatic lobe (upper, middle and lower) was acquired with two scans. Analysis the the ADC values of various anatomic locations of liver with two-way analysis of variance of randomized block design. Reproducibility of ADCs was assessed with the Bland-Altman method. Analysis of variance and paired-sample t test was used to assess ADCs from both right and left liver lobe among the four techniques. Result The ADC values acquired from the four techniques were significant differences (P<0.01),and the ADC values of the right lobe were less than the left lobe's(P<0.01). It showed a trend to decrease moving from superior to inferior levels in both left and right lobes, and the ADC values among The middle and lower were significant differences (P<0.01). The limit of agreement of ADC of twice imaging among the four techniques were as follow: the right lobe was less than the left lobes, and the breathhold was less the others. As the result, reproducibility in the right liver lobe was better to that in the left and the reproducibility with breathhold was better than the other respiratory motion compensation techniques. Conclusions Both anatomic location and DWI technique influence the liver ADC measurements and their reproducibility. The reproducibility of BH is the best.
8.Changes of cerebral gray matter pre- and post-treatment in patients with schizophrenia
Qiong XIANG ; Yingchan WANG ; Dianming ZHU ; Kaiming ZHUO ; Zheng WANG ; Yifeng XU ; Dengtang LIU
Journal of Shanghai Jiaotong University(Medical Science) 2017;37(2):203-206
Objective · To observe the changes of cerebral gray matter pre- and post-treatment with short term drugs in patients with schizophrenia. Methods · T1-weighted brain MRIs were obtained on a 3T scanner in 21 controls and 27 subjects with schizophrenia who were not given antipsychotic medication. The controls and 21 schizophrenia patients received the second scan after 8 weeks of antipsychotic treatment. Voxel-based morphometry (VBM) were used to investigate the differences in gray matter (GM), mainly about the regional GM volumes. Results · GM volumes were significantly smaller in the patient group than those of healthy controls in left cerebellum posterior lobe , left and right parahippocampalgyrus, left middle temporal gyrus(P=0.000, voxels>50). GM volumes extensively decreased after 8 weeks of antipsychotic-treatment compared with pre-treatment in the superior, middle, and inferior temporal gyri, superior,middle and inferior frontal gyri, parahippocampa gyri, cingulate gyri, right supramarginal gyrus, right cerebellum posterior lobe, and right lingual gyrus(P=0.000, voxels>50). Conclusion · Short term antipsychotic treatment (8 weeks) may have adverse effects on the gray matter of patients with acute schizophrenia by reducing the volume of gray matter.
9.Treatment of vitiligo with the monochromatic excimer light 308-nm
Jing GUO ; Leihong XIANG ; Zhizhong ZHENG ; Wenwen FU ; Yi JIN ; Luchuan ZHU
Chinese Journal of Dermatology 1995;0(01):-
Objective To evaluate the efficacy and tolerance of monochromatic excimer light (MEL) 308 nm in the treatment of vitiligo. Methods Seventy-seven patients were enrolled in the prospective and open clinical study. Two-hundred and one lesions were subjected to local phototherapy of MEL 308-nm once a week for 3 to 6 months. Results Of these lesions, 86.6% obtained repigmentation at different degrees. The repigmentation was more obvious in lesions on the head, face, neck and trunk than in those on the limbs or extremities. Moreover, patients with generalized and segmental vitiligo got a better improvement than patients with other types of vitiligo. Conclusion MEL 308-nm is effective in the treatment of vitiligo without obvious adverse effects.
10.Study on VVC recombinant protein cytolytic activity mechanism of an extracellular cytolytic toxin of Vibrio vulnificus
Jing GUI ; Die HU ; Li ZHENG ; Yongliang LOU ; Meiying XIAO ; Jie YAN ; Yejing ZHU ; Xiang XIAO
Chinese Journal of Microbiology and Immunology 2008;28(5):390-394
Objective To investigate the cytolytic activity of extracellular cytolytic toxin rVVC of Vibrio vulnificus on the apoptosis of human ECV304 cells, and to analyze the activities of Caspase-3,-8 and -9. Methods The cytotoxic effect of refolded rVVC on the growth and apoptosis of ECV304 cells was identified by MTT, Hochest33342/PI fluorescent staining, flow cytometry and DNA agarose electrophoresis analysis, respectively. The activities of Caspase-3, -8 and -9 was measured using a colorimetric method. Results The viability of human ECV304 cells exposed to rVVC was inhibited by rVVC after 24 h. 2.0 HU/ml rVVC groups had a better cytotoxic effect to human ECV304 than that of 0.5 HU /ml rVVC groups. The apoptosis of human ECV304 cells in 2.0 HU/ml rVVC+40 μmol/L Z-VAD-FMK groups was relative reduced than that of 2.0 HU/ml of rVVC groups. After 0.5 h treatment with 2.0 HU/ml of rVVC, the Caspase-3 activity in human ECV304 cells increased gradually and reached the peak at 3 h (versus control groups, P<0.01). The activity of Caspase-8 and -9 remained unchanging. Conclusion The rVVC has cytotoxic effect on human ECV304 and the cytolysin is probably correlated with Caspase-3.