1.Comparison with Several Methods to Isolate Epiphytic Bacteria from Gracilaria lemaneiformis (Rhodophyta)
Yong-Jian XU ; Guan-Zong LE ; You-Ping ZHANG ;
Microbiology 1992;0(01):-
We used 4 methods,such as ultrasonic crush(UC),ultrasonic rinse(UR),whorl surge(WS)and rubbing(RU),to isolate epiphytic bacteria from red alga Gracilaria lemaneiformis.Then,we counted bacteria numbers,detected bacterial species,observed bacterial configuration and characteristic of cell wall.Compared with these methods and with different treatments in one method,the results were drawn:the UR and RU were inferior in all methods to isolate bacterial numbers and species,the UC and WS were better,especially,the treatment 30W 30s of UC was the best in experiment,which isolated 12 of 16 bacterial species,and got 1.75 10~6 cells per gram wet weight G.lemaneiformis.
2.Silodosin efficacy and safety in the treatment of BPH : a meta-analysis
Yuanshan CUI ; Huantao ZONG ; Huilei YAN ; Yong ZHANG
Chinese Journal of Urology 2013;(4):310-313
Objective To evaluate the efficacy and safety of silodosin in the treatment of benign prostatic hyperplasia (BPH).Methods Randomized controlled trials (RCT) on the efficacy and safety of silodosin for the treatment of BPH were retrieved from Medline (1966-2012),Embase (1988-2012),Cochrane liberary,CMCC (1979-2012),CNK1 (1979-2012) and the quality of the included RCTs were evaluated using Cochrane systematic evaluation to analyze the data statistically using Rev Man 5.1.0 software.Results Six RCTs involving 2543 participants were included for the meta-analysis.Results of analysis showed that silodosin was effective in the treatment of BPH in term of total international prostate symptom score (IPSS) (standard mean difference (SMD) =2.92,95 % CI =2.19-3.65,P < 0.05),voiding symptom score (SMD =1.92,95% CI =1.44-2.39,P <0.05),storage symptom score (SMD =0.92,95% CI=0.60-1.24,P <0.05),and maximum flow rate (Qmax) score (SMD =1.56,95% CI=1.38-1.75,P < 0.05),compared with the placebo.Silodosin 8 mg was more effective than tamsulosin 0.2 mg in term of IPSS-related parameters and Qmax (P < 0.05).Silodosin 8mg and tamsulosin 0.4 mg were similarly effective in all the efficacy analyses.Abnormal ejaculation was less common with tamsulosin 0.2 mg and 0.4mg (P<0.05); overall adverse events were similar with tamsulosin 0.2 and 0.4 mg (P <0.05).Conclusions Silodosin was significantly more effective than placebo and tamsulosin 0.2 mg in improving symptoms and as effective as tamsulosin 0.4 mg.For adverse events,abnormal ejaculation was more common with silodosin.
3.Efficacy and safety of alemtuzumab, daclizumab and antithymocyte globulin in kidney transplantation
Tao WANG ; Wenjing HAO ; Huantao ZONG ; Yong ZHANG
Chinese Journal of Tissue Engineering Research 2015;(2):305-309
BACKGROUND:Immunosuppressants fight against acute rejections by influencing humoral and celular immune to suppress the immune function, and then improve patient/renal graft survival. OBJECTIVE:To evaluate the effectiveness and safety of alemtuzumab, daclizumab and antithymocyte globulin in inducing immunosuppression in kidney transplantation. METHODS:The randomized controled trials of alemtuzumab or daclizumabversusATG in kidney tranplantation published from 1966 to 2011 were enroled by searching PubMed and EMBASE using Cochrane systematic review. We colected data and major outcomes. And a meta-analysis was conducted on homogeneous studies. RESULTS AND CONCLUSION: A total of 9 randomized controled trials (777 patients) about kidney transplantation were included. The meta-analysis results showed that the safety items including patient/renal graft survival and acute rejection at a folow-up of 24 months had no statistical differences among the three drugs (al P > 0.05). But there was a significant difference between the infection rates of alemtuzumab and antithymocyte globulin at 36 months of folow-up (P < 0.05). The results indicate that alemtuzumab, daclizumab and antithymocyte globulin are equaly effective in inducing immunosuppression at a folow-up of 24 months in kidney transplantation. However, compared to antithymocyte globulin, alemtuzumab has a lower rate of infection at a folow-up of 36 months.
4.Cross-sectional study of benign prostatic hyperplasia in kidney transplant recipients
Yong ZHANG ; Xiaodong ZHANG ; Zhigang JI ; Hongwei BAI ; Xiaoxia PENG ; Peng ZHANG ; Huantao ZONG
Chinese Journal of Urology 2013;34(9):674-677
Objective To investigate the incidence of and risk factors for benign prostatic hyperplasia (BPH) in transplant recipients.Methods 197 males aged 50 years and older who received kidney transplants were recruited if they were clinically stable.They were divided into three age groups:50 to 59 years (87 cases),60 to 69 years (64 cases) and ≥ 70 years (46 cases).Two hundred and forty people who had not undergone kidney transplant were randomly selected from the community as controls.A cross-sectional study was performed to study the BPH incidence in kidney transplant recipients according to standard diagnostic criteria.At the same time,the expression levels of keratinocyte growth factor,transforming growth factor-β and serum testosterone and the CD4/CD8 ratio in T lymphocytes were determined.Results There was no significant difference in age,PSA and the postmicturition residual volume between the study group and the control group.The total BPH incidence in kidney transplant recipients was 16.2% (32/197).The symptomatic BPH incidence was 6.9% (6/87) in the 50-to 59-year-old study group and 20.2% (19/94) in the control group,representing a significant statistical difference in the symptomatic BPH incidence between the two groups (P =0.010).The symptomatic BPH incidence was 18.8% (12/64) in the 60-to 69-year-old study group and 41.9% (34/81) in the control group,indicating a significant statistical difference in the symptomatic BPH incidence between the two groups (P =0.004).The symptomatic BPH incidence was 30.4% (14/46) in the ≥ 70-year-old study group and 52.3% (34/65) in the control group,indicating a significant statistical difference in the symptomatic BPH incidence between the two groups (P =0.032).Compared to the control group,the peripheral blood serum testosterone level (9.4 ± 4.7,18.2 ± 5.6,P =0.040) and the CD4/CD8 ratio (1.1±0.3,1.8±0.3,P=0.014) of kidney transplant recipients was lower.The transforming growth factor-β expression level (5015± 1087,1829±963,P<0.001) was higher in kidney transplant recipients than in the control group.The kasatinocyte growth factor expression levels (35.8±20.7,21.0± 18.3,P =0.064) was not statistically different than in the control group.Conclusions Kidney transplant recipients who had long-term administration of calcineurin inhibitor might have a low benign prostatic hyperplasia incidence,which might be related to transforming growth factor-β and keratinocyte growth factor expression,testosterone levels and the lymphocyte infiltration.Further high-quality prospective studies are still needed to confirm the conclusions.
5.Prevalence and Detection Rate of Hypertension and Keshan-disease During Last Decade in Keshan-disease Epidemic Area
Yong-Rui ZHANG ; Yong-Jian LIAO ; Peng-Fei GE ; Yong-Qin CAO ; Hong-Zong SI ; Cai-Xia DONG ;
Chinese Journal of Hypertension 2006;0(08):-
Background and Objective Keshan disease is clinically characterized as a dilated eardiomyopathy. We analyze the prevalence trend during last decade of hypertension and Keshan-disease in Yangzhuang village which was a Keshan-disease epidemic area.Method The survey including medical history,blood pressure and ECG were carried out every two years during the follow up 13 years.Results During follow up period,the total detection rate(hypertension:13.4 % vs Keshan-disease:10.7 %,?~2=8.555,P=0.002)and the accumulative rate of hypertension were higher than those of Keshan-disease,which was on the contrary to that before 1993,when increasing rate of Keshan-disease was higher than hypertension.Furthermore,the accumulative increasing rate of hypertension was 240.0%,which was higher than the national average level during corresponding period with no significant differences between female and male.Conclusion The detection rate of hypertension in Keshan disease epidemic area was higher than the average rate nation-wide.Whether the hypertension prevalence was re- lated to Keshan-disease needs further investigation.
6.Polypropylene mesh for testicular prothesis implantation: A report of 57 cases.
Jie AN ; Ye LIU ; Zong-min ZHANG ; Chun-xiao YU ; Yong-qiang XIA ; Peng-fei WANG
National Journal of Andrology 2015;21(9):816-818
OBJECTIVETo search for an optimum method for testicular prothesis implantation in the treatment of testis loss.
METHODSWe retrospectively analyzed the surgical methods and outcomes of 53 cases of terminal prostate cancer and 4 cases of unilateral testicular torsion treated by implantation of testicular prothesis with the polypropylene mesh.
RESULTSThe 57 male patients all received testicular prothesis with the polypropylene mesh. All the patients were satisfied with the appearance and size of the scrotum after surgery. No scrotal hematoma, prosthesis infection, or autoimmune disease occurred postoperatively.
CONCLUSIONTestis loss is not a rare condition clinically, for the treatment of which surgical implantation of testicular prothesis with the polypropylene mesh can achieve both a fine tissue compatibility and a desirable scrotal appearance.
Humans ; Male ; Polypropylenes ; Prostatic Neoplasms ; surgery ; Prostheses and Implants ; Retrospective Studies ; Scrotum ; Spermatic Cord Torsion ; surgery ; Surgical Mesh ; Testis
7.Research about effect of spray drying conditions on hygroscopicity of spray dry powder of gubi compound's water extract and its mechanism.
Jie ZONG ; Qi SHAO ; Hong-Qing ZHANG ; Yong-Lan PAN ; Hua-Xu ZHU ; Li-Wei GUO
China Journal of Chinese Materia Medica 2014;39(4):663-668
OBJECTIVETo investigate moisture content and hygroscopicity of spray dry powder of Gubi compound's water extract obtained at different spray drying conditions and laying a foundation for spray drying process of Chinese herbal compound preparation.
METHODIn the paper, on the basis of single-factor experiments, the author choose inlet temperature, liquid density, feed rate, air flow rate as investigated factors.
RESULTThe experimental absorption rate-time curve and scanning electron microscopy results showed that under different spray drying conditions the spray-dried powders have different morphology and different adsorption process.
CONCLUSIONAt different spray-dried conditions, the morphology and water content of the powder is different, these differences lead to differences in the adsorption process, at the appropriate inlet temperature and feed rate with a higher sample density and lower air flow rate, in the experimental system the optimum conditions is inlet temperature of 150 degrees C, feed density of 1.05 g x mL(-1), feed rate of 20 mL x min(-1) air flow rate of 30 m3 x h(-1).
Desiccation ; methods ; Drugs, Chinese Herbal ; chemistry ; Hydrophobic and Hydrophilic Interactions ; Particle Size ; Powders ; chemistry ; Temperature ; Water ; analysis ; Wettability
8.Isolation,incubation and identification of parenchymal neural stem cells in adult mouse spinal cord
Hui ZHANG ; Zong-Sheng YIN ; Sheng-Quan ZHANG ; Wei WANG ; Xing-Yi HUA ; Yong HU ; Guang-Wu LI ;
Chinese Journal of Trauma 2003;0(07):-
Objective To isolate and identify the adult neural stem cells from the parenchyma of spinal cord in adult mouse.Methods The parenchymal spinal cord from adult mouse was dissected and dissociated by mechanical trituration.The tissue suspension was cultured in serum-free DMEM/F12 medium supplemented with EGF and B27.The cell colonies generated from a single cell were screened by limited dilution and incubated with BrdU.The cell colonies were transferred into medium with serum to induce differentiation.The cells were identified with antibodies to Nestin,BrdU,MAP2 and GFAP by immunofluorescence staining.Results The cells were cultured for seven days to generate proliferative neurospheres.The majority of cells in these neurospheres expressed Nestin and were differentiated into MAP2-positive cells and GFAP-positive cells in medium containing with fetal bovine serum.Conclusion A significant number of neural stem cells are present in the parenchymal adult mouse spinal cord and can proliferate and also give rise to neurons and glia in vitro.
10.Clinical study of carotid artery rupture in head and neck cancer
Zong-Min ZHANG ; Ping-Zhang TANG ; Zhen-Gang XU ; Yong-Fa QI ; Zheng-Jiang LI ; Bin ZHANG
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2010;45(12):1025-1028
Objective To assess the efficacy and safety of carotid ligation in the treatment of the carotid artery rupture(CAR). Methods A series of 30 patients who had CAR treated with carotid ligation were reviewed. There were 24 males and 6 females ranging in age from 32 to 76 years, with a mean of 53.9 years. The original sites of tumours were hypopharynx(n=11), larynx(n=5), thyroid (n= 6) and others(n =8). Of the 30 patients, 24 patients had received radiotherapy from 40 - 126 Gy and 10 patients underwent one or more surgical treatments. CAR in all cases occurred after surgical operation. CAR occurred in 5 -21 days after operation. Results By pressing the carotid and keeping breathe of the patients immediately after CAR, 25 patients were conscious, 2 patients in coma, and 3 patients died before carotid ligation. Seven cases were applied with carotid ligation, 3 cases with the combined ligation of carotid and brachiophatic arteries, and 17 cases with carotid ligation plus the repair by pectoralis major myocutaneous flap. The causes of CAR concluded fistula, wound dehiscence, wound infection and transferred flap necrosis. The omende hemorrhage occurred in 14 patients. Of 25 cases with the treatments of carotid ligation, 22 patients survived with no complication, 1 with brief muscle weakness and 2 with unconscious.Clinical follow-up period lasted more than 5 years at least in 6 patients. Conclusions CAR is the most dangerous complication in advanced carcinoma of the head and neck. The prompt hemostasis and carotid ligation are effective methods to rescue patients of CAR. It is important to keep patients conscious before carotid ligation surgery, with low rates of death and hemiplegia postoperatively.