1.A Discussion on the TURP Opportunity After Transrectal Prostate Biopsy
Hongyu ZHUANG ; Tao PENG ; Yongguang JIANG
Chinese Journal of Minimally Invasive Surgery 2017;17(9):800-802
Objective To discuss the opportunity of transurethral resection of prostate (TURP) after transrectal prostate biopsy.Methods We analyzed 60 cases of benign prostatic hyperplasia(BPH) who underwent TURP after transrectal prostate biopsy from September 2013 to September 2015.All the patients were divided into either group A or group B in chronological order, with 30 cases in each group.There were no significant differences in age, prostate specific antigen (PSA), prostate volume, hemoglobin level, and international prostate symptom score (IPSS) between the two groups.The group A and group B were treated by TURP at 1 week and 4 weeks after transrectal prostate biopsy, respectively.The parameters including operation time, excised prostate weight, intraoperative total blood loss, bladder irrigation time, and IPSS at 3 months after operation were recorded.Results The operation time, intraoperative total blood loss, bladder irrigation time, and IPSS in the group B were significantly lower than those in the group A [(58.3±6.0) min vs.(62.0±3.3) min, t=2.952, P=0.005;(154.1±15.8) ml vs.(167.4±29.5) ml, t=2.181, P=0.035;(19.2±0.8) h vs.(20.6±2.3) h, t=3.034, P=0.004;(18.3±2.5) points vs.(20.3±2.0) points, t=3.419, P=0.001].The excised prostate weight in the group B was significantly higher than that in the group A [(37.1±4.0) g vs.(33.3±7.8) g, t=-2.341, P=0.024].Conclusions TURP performed at 4 weeks after transrectal prostate biopsy can significantly increase the excised prostate weight, reduce intraoperative total blood loss volume, shorten the operation time and postoperative bladder irrigation time, and improve urinary symptoms.In brief, we recommend that TURP be executed at 4 weeks after transrectal prostate biopsy.
2.Expression of p38MAPK and TGF?_2 in retina of experimental diabetic hamster
Hui PENG ; Suling HONG ; Yongxian TAO ; Yan PENG ; Rong JIANG
Journal of Third Military Medical University 2003;0(08):-
Objective To explore the role of p38MAPK and TGF?2 in the development of diabetic retinopathy.Methods Fifteen Hamsters were induced into diabetic models by intraperitoneal injection of Streptozotocin(40 mg/kg once a day) for 3 d and 13 Hamsters were successfully established,whose blood glucose was over 13.5 mmol/L.Ten Hamsters as controls were intraperitoneally injected of physical saline of the same volume.At 16th week after induction,the total RNA of retina from all sacrificed Hamsters was collected.The mRNA expressions of p38MAPK,TGF?2 in retina were detected by semi-quantitative RT-PCR and their protein levels by Western blotting.Results The mRNA expressions of p38MAPK,TGF?2 in retina were of high tendency and their protein levels increased.Conclusion p38MAPK signal pathway may involve in the pathogenesis of diabetic retinopathy.
3.Female outlet obstruction constipation: assessment with MR defecography
Min LI ; Tao JIANG ; Xinqing YANG ; Peng PENG ; Wenchuan WANG
Chinese Journal of Radiology 2010;44(11):1176-1179
Objective Using MR defecography to assess the morphological and functional anorectal anomalies related to female outlet obstruction constipation, and evaluate the joint disease of anterior and mid pelvic. Methods One hundred and seven female patients, aged 20 to 84 years ( average, 55 years), were diagnosed as outlet obstruction constipation based on clinical symptoms and signs. They all received MR defecography in our institution. The high compliance homemade balloon was inserted into rectum to simulate stool Then relevant measurements were obtained during rest, squeezing and straining, respectively. Results In all the 107 cases, 70 ( 65.4% ) presented rectocele on dynamic MRI; 28 ( 26. 2% ) presented anismus;60 (56. 1% ) presented cystocele; 59 presented vaginal or cervical prolapse(55. 1% ); and, 54 (50. 5% )presented descending perineum. In 85 females (79.4%) multiple disorders were detected, involving more than one pelvic compartment. Conclusion MR defecography allowed to accurately evaluate the morphological and functional anorectal anomalies related to female outlet obstruction constipation, and the joint disease of anterior and mid pelvic.
4.Correlation between nicotine dependence and brain changes:a voxel-based morphometry study
Peng PENG ; Lu LIANG ; Yaru TIAN ; Yang YU ; Tao JIANG
Journal of Practical Radiology 2017;33(1):8-11,19
Objective To study the pattern of cerebral gray matter and white matter volume changes among smokers with differ-ent level of nicotine dependence (addition)using voxel-based morphometry (VBM).Methods The current case-control study recrui-ted 53 healthy male smokers and 53 healthy non-smokers from outpatients of our hospital during January 2013 to May 2014.Personal information (including for example age,sex and addition dependence of subjects)was collected using a questionnaire.3D-T1 images of whole brain structure were collected and were analyzed using DARTEL toolbox of SPM8.Smokers were divided into mild to mod-erate nicotine dependence group (n=23)and severe nicotine dependence group (n=30)based on Fagerstr?m Test for Nicotine De-pendence (FTND)score.Independent sample t-test analyses were performed to compare the volumes of gray matter and white mat-ter between smokers with different levels of nicotine dependence and non-smokers.Results Compared with non-smokers,gray and white matter volumes of smokers were smaller in multiple brain areas,mainly in the middle occipital gyrus,posterior cingulate,cer-ebellum anterior lobe,precuneus,caudate body and insula,which however,had larger number and scope of focal areas with gray and white matter atrophy in the mild to moderate nicotine dependence group than that in the severe nicotine dependence group.Conclusion Smokers with mild to moderate nicotine dependence have more pronounced gray and white matter atrophy than that smokers with severe nicotine dependence have.
5.Detection of telomerase activity in tissues of colorectal carcinoma with TRAP-Sybr Green I
Bing FAN ; Tao JIANG ; Jianxin LUO ; Jianxiong PENG
Chinese Journal of General Surgery 1993;0(03):-
Objective To apply a fluorescent nucleotide dye Sybr Green I in detecting telomerase activity and assess its clinical value in the diagnosis of colorectal carcinoma. Methods Telomerase activity was (measured) by telomeric repeat amplification protocol (TRAP) combined with fluorescent nucleotide dye Sybr Green I in 46 cases of colorectal carcinoma tissue specimens and 19 tumor-adjacent tissue (specimens). Results (Telomeric) repeat amplification product was displayed as clear bands in PAGE stained with Sybr Green I; the positive rate of telomoerase activity in colorectal carcinoma tissue was 89.13%, whereas no telomerase (activity) was observed in 19 tumor-adjacent tissue specimens. There was no (relationship) between telomerase (activity) and the level of cell differentiation, Dukes stages, or metastasis of lymph nodes. Conclusions The method of TRAP combined with Sybr Green I to determine telemerase (activity) is an important method for the diagnosis of colorectal carcinoma.
6.Preparation and stability test of Lyophiled Royal Jelly Soft Capsule
Jian HE ; Tao PENG ; Meiling DAI ; Zheng JIANG ; Chunhui LIU
Chinese Traditional Patent Medicine 1992;0(12):-
AIM:To prepare the Lyophiled Royal Jelly Soft Capsule and study its stability and Influential factors.METHODS:The suspending agent and processing method were optimized using sedimentation volume rate as the index.Soft capsules were prepared and product stability under high temperature and high humidity environment was studied according to the determination of the content of 10-HAD by HPLC.RESULTS:The finished product yield in pilot test was more than 90%,the soft capsule products stored in cold were stable,while those stored under room temperature or high temperature and high humidity were unstable with a noticeable decrease in quality.Water content in capsule shell affects the 10-HDA content of the finished product.CONCLUSION:The preparative process is feasible and the products should be storaged in cold enviroment.
7.TOXOPLASMA GONDII INDUCES PROSTAGLANDIN E_2 SYNTHESIS IN MACROPHAGES VIA CYCLOOXYGENASE-2 PATHWAY
Biwen PENG ; Tao ZHANG ; Mingsen JIANG ; Jianyi LIN
Chinese Journal of Schistosomiasis Control 1989;0(03):-
Objective To explore prostaglandin E 2 (PGE 2) production pathway in Toxoplasma gondii-infected macrophage RAW264.7 cell line.Methods Cells were incubated with Toxoplasma gondii tachyzoites and lipopolysaccharides (LPS). Prostaglandin synthesis and arachidonic acid in supernants were detected with ELISA and gas chromatogram. Expression of cyclooxygenase-1/cyclooxygenase-2 (COX-1/COX-2) mRNA and protein following stimulation with LPS or infection of Toxoplasma gondii were evaluated with RT-PCR and Western blot in presence or absence of peculiar antagonists of PGE 2 production. Results PGE 2 synthesis of macrophages began at 4-8 h after invasion with Toxoplasma gondii and saturated at 12-16 h. Expression of COX-2 mRNA peaked at 4-8 h, and diminished in presence of both indomethacin and nimesulide, COX-2 protein expression was not affected by them. Expression of COX-1 mRNA and protein were constant and not affected by either indomethacin or nimesulide. Conclusion Toxoplasma gondii may induce macrophages prostaglandin E 2 synthesis via cyclooxygenase-2 pathway.
8.Endostar combined with pemetrexed for first-line treatment of advanced lung adenocarcinoma in elderly patients
Peng DENG ; Hao JIANG ; Bin ZHANG ; Tao ZHOU ; Yan DONG
Chinese Journal of Clinical Oncology 2014;(1):78-82
Objective:A study was conducted to observe and compare the efficacy and safety of endostar combined with peme-trexed in elderly patients with advanced lung adenocarcinoma. Methods:Sixty advanced lung adenocarcinoma (ⅢB-Ⅳ) patients who never received any therapy were included. The patients were divided into two groups. One group comprised endostar treatment com-bined with pemetrexed (26 cases of males, 15 cases of females, and 11 cases of individuals aged 65 years old to 78 years old), and the other group comprised pemetrexed only (34 cases of males, 20 cases of female, and 14 cases of individuals aged 65 years old to 78 years old). The two groups were treated for 4 to 6 cycles, and evaluation of treatments was performed every two cycles. Results:The endostar group was re-treated for 80 cycles, and the average cycle was 3.1. The group without endostar was re-treated for 115 cycles. The short-term effects are as follows. The total effective rates (RRs) in the experimental and control groups were 23.1%and 14.7%, re-spectively, and the difference was statistically significant (P<0.05). The disease control rate (DCR) was not significantly different (P>0.05). For pleural effusion, RR and DCR were significantly better in the experimental group than in the control group (P<0.05). In the experimental group, compared with PD, the microvessel density (MVD) in the DCR showed higher expression, and a statistically signif-icant difference (P=0.03) was observed. In the control group, compared with PD, the MVD in the DCR also showed higher expression, but no significant difference (P=0.73) was observed. The long-term effects were as follows: median progression-free survival (PFS), median survival, and side effects between the two groups were not significantly different (P>0.05). Conclusion: Endostar combined with pemetrexed showed increase in total efficiency in elderly patients with lung adenocarcinoma, and malignant pleural effusion was controlled without increasing the toxicity of chemotherapy. MVD can be used as a predictor of Endostar application.
9.Thyroxine effects on induced differentiation of human umbilical cord blood-derived mesenchymal stem cells into chondrocytes
Tao YANG ; Bo JIANG ; Peng XU ; Gang LIN
Chinese Journal of Tissue Engineering Research 2015;(1):7-11
BACKGROUND:Human umbilical cord blood-derived mesenchymal stem cels can be induced through the co-culture to differentiate into other cels, but how to get more seed cels for tissue engineering is one of the most difficult problems. OBJECTIVE: To investigate the role of the different concentrations of thyroxine in chondrogenic differentiation of human umbilical cord blood-derived mesenchymal stem cels by co-culture with rabbit chondrocytes. METHODS:Human umbilical cord blood-derived mesenchymal stem cels were co-cultured with rabbit chondrocytes at 2:1, and stimulated by medium containing different concentrations of thyroxine (0, 0.01, 0.1 and 1, 10 μmol/L). Co-cultured cels with no thyroxine served as control group. After 14 days of co-culture, the cel RNA and protein were extracted, mRNA expressions of aggrecan and colagen type II were detected by real-time PCR, and protein expression of aggrecan and colagen type II were detected by western blot assay. RESULTS AND CONCLUSION:After intervention with 0.01, 0.1, 1, 10 μmol/L thyroxine, the mRNA and protein expressions of aggrecan and colagen type II were enhanced with the increase of thyroxine concentration, which were significantly different from those in the control group (P < 0.05). Experimental findings indicate that high levels of thyroxine can enhance the chondrogenic ability of human umbilical cord blood-derived mesenchymal stem cels co-cultured with rabbit chondrocytes.
10.Biological Features of Mouse Macrophage Transfected with Toxoplasma gondii GRA-1 Gene
Biwen PENG ; Jianyin LIN ; Tao ZHANG ; Mingsen JIANG ;
Chinese Journal of Parasitology and Parasitic Diseases 1997;0(05):-
Objective To investigate the change of biological features of macrophages after transfected by Toxoplasma gondii GRA 1 genes (P24). Methods The transfected cells Cyto P24 RAW264.7, Nuc P24 RAW264.7, Mito P24 RAW264.7 and ER P24 RAW264.7 were studied by RT PCR to determine the P24 mRNA expression. Growth features of the cells were examined with microscopy and the cell growth curve was developed. Results In four cell lines, expression of ER P24 RAW 264.7 was found to be higher than the other three, and there was no P24 mRNA expression in either of the cells without P24 insert. The attachment and the proliferation of ER-P24-RAW264.7 were more rapid than normal RAW264.7. Conclusion Transfection of mouse macrophages ER RAW264.7 strain with T. gondii P24 gene leads to a prominent change of biological features in the studied cell line.