1.Primitive neuroectodermal tumor of kidney: report of a case.
Shu-yong HAN ; Yun-ting XIE ; Ren-ya ZHANG ; Peng ZHU
Chinese Journal of Pathology 2007;36(3):213-214
12E7 Antigen
;
Adult
;
Antigens, CD
;
metabolism
;
Cell Adhesion Molecules
;
metabolism
;
Diagnosis, Differential
;
Humans
;
Immunohistochemistry
;
Kidney
;
metabolism
;
pathology
;
Kidney Neoplasms
;
metabolism
;
pathology
;
surgery
;
Male
;
Nephrectomy
;
Neuroectodermal Tumors, Primitive
;
metabolism
;
pathology
;
surgery
;
Vimentin
;
metabolism
;
Wilms Tumor
;
pathology
2.Establishment of experimental subarachnoid hemorrhage model with endo-cerebrovascular perforation
Jie-Sheng ZHENG ; Yue-Hui MA ; Ren-Ya ZHAN ; Yong-Qin ZHOU ;
Chinese Journal of Emergency Medicine 2006;0(10):-
Objective To establish an experimental subarachnoid hemorrhage(SAH)model with endo- cerebrovascular peroration.Method The right external carotid artery of SD rats were isolated,leaving a stump of approximately 3 to 4 mm.A-3-O monofilament nylon suture was inserted up through the stump of external carotid artery to the internal carotid artery for about 18~19 mm.A small resistance was usually felt,and the suture was then advanced 2 mm further and the suture was immediately withdrawn.Two hours or two days after SAH induction,SAH extension was observed.Two days after SAH induction,the diameter of the basilar artery was measured.Results SAH extends from the ipsilateral artery to the eontralateral artery after SAH induction.The diameters of basilar arteries in SAH animals were smaller than those of control rats,indicating the present of cerebrovascular spasm in SAH animals.Conclusions The endo-cerebrovascular perforation technique for establishing a non-craniotomy SAH model is reliable.
3.Suppression of MDR1 expression and restoration of sensitivity to chemotherapy in multidrug-resistant hepatocellular carcinoma cell line Bel7402/5-Fu by RNA interference.
Journal of Central South University(Medical Sciences) 2006;31(6):872-876
OBJECTIVE:
To investigate the suppression of MDR1 and P-glycoprotein induced by small interfering RNA and the restoration of sensitivity to chemotherapeutic drugs in multidrug-resistant hepatocellular carcinoma cell line Bel7402/5-Fu.
METHODS:
MDR1j targeted small interfering RNA duplexes were introduced into multidrug-resistant hepatocellular carcinoma cell line Bel7402/5-Fu. The suppression of MDR1 and its gene product P-glycoprotein was examined by RT-PCR and Western blot. MTT assay was performed to measure the reverse effect of small interfering RNA based on the results of IC50. Cell apoptosis was assessed by flow cytometry after various cell lines were treated with chemotherapeutic drugs.
RESULTS:
The overexpression of MDR1 and P-glycoprotein was suppressed efficiently by the introduction of small interfering RNA, which caused sequence-specific gene silence. The level of MDR1 in the transfected Bel7402/5-Fu cells reduced to 22.55% and P-glycoprotein to 25.49% compared with those of the controls. The apoptosis rate of Bel7402/5-Fu cells increased significantly in the siRNA group during the chemotherapy (P<0.01). Their resistance to 5-Fu was reversed by 14.88 folds, which indicated the restoration of sensitivity to drugs.
CONCLUSION
Small interfering RNA can inhibit MDR1 expression effective and reverse the multidrug resistance mediated by P-glycoprotein.
ATP Binding Cassette Transporter, Subfamily B
;
ATP Binding Cassette Transporter, Subfamily B, Member 1
;
genetics
;
metabolism
;
Carcinoma, Hepatocellular
;
genetics
;
metabolism
;
pathology
;
Cell Line, Tumor
;
Drug Resistance, Multiple
;
genetics
;
Drug Resistance, Neoplasm
;
genetics
;
Humans
;
Liver Neoplasms
;
genetics
;
metabolism
;
pathology
;
RNA Interference
;
RNA, Small Interfering
;
genetics
;
Transfection
5.Cytokine-induced killer cells induce apoptosis of K562 cells expressed bcr-abl.
Xi-Nan CEN ; Ping ZHU ; Yong-Jin SHI ; Ya-Li REN ; Ming-Xin MA ; Ji-Ren YU
Journal of Experimental Hematology 2002;10(3):201-204
In order to investigate whether cytokine-induced killer (CIK) cells can induce apoptosis of bcr-abl(+) K562 cells, apoptosis of K562 cells and CEM cells induced by CIK cells, etoposide or camptothecin was detected with flow cytometry DNA assay. RT-PCR showed that K562 cells expressed the bcr-abl fusion gene, K 562 cells, K562 cells/etoposide or K562 cells/camptothecin groups showed no sub-G(1) peak. K562 cells/CIK cells group showed sub-G(1) peak (38.1%). CEM cells showed no sub-G(1) peak. CEM cells/camptothecin or CEM cells/etoposide groups showed sub-G(1) peak (23.5% or 32.3% respectively). CEM cells/CIK cells group showed sub-G(1) peak (45.4%). Etoposide or camptothecin did not induce apoptosis of K562 cells. CIK cells induce apoptosis of K562 cells. Bcr-abl fusion gene prevented apoptosis induced by etoposide or camptothecin, but did not prevent apoptosis induced by CIK cells. This property may support the observed adoptive immunologic effect of allogeneic bone marrow transplantation and donor lymphocyte transfusions of CML case relapsing after allogeneic bone marrow transplantation.
Antineoplastic Agents, Phytogenic
;
pharmacology
;
Apoptosis
;
drug effects
;
immunology
;
Camptothecin
;
pharmacology
;
Coculture Techniques
;
Cytotoxicity, Immunologic
;
Etoposide
;
pharmacology
;
Flow Cytometry
;
Fusion Proteins, bcr-abl
;
genetics
;
Gene Expression Regulation, Neoplastic
;
Humans
;
K562 Cells
;
drug effects
;
immunology
;
metabolism
;
Killer Cells, Lymphokine-Activated
;
cytology
;
immunology
6.Efficacy of combination therapy of tamsulosin and solifenacin for mild and moderate benign prostatic hyperplasia with overactive bladder.
Zhong-Wei GAO ; Shi-Yong XIN ; Jian-Guo ZHANG ; Xiao-Qiang REN ; Ya-Feng SHANG ; Wei ZHANG ; Hui-Bing LI ; Fei XIAO ; Chang-Shuai SHAO
National Journal of Andrology 2014;20(3):239-243
OBJECTIVETo evaluate the efficacy and safety of the combination therapy of tamsulosin and solifenacin for mild and moderate benign prostatic hyperplasia (BPH) with overactive bladder (OAB).
METHODSWe randomly divided 166 patients with BPH and concomitant OAB into a mild obstruction symptom group (n = 88) and a moderate obstruction symptom group (n =78), 48 of the former group treated with 0. 2 mg tamsulosin + 5 mg solifenacin and the other 40 with 0. 2 mg tamsulosin; 36 of the latter group treated with 0. 2 mg tamsulosin + 5 mg solifenacin and the other 42 with 0. 2 mg tamsulosin, all administered once daily for 12 weeks. We obtained the International Prostate Symptom Score (IPSS), urine storage period symptom score (USPSS), voiding symptom score (VSS), Qmax, residual urine volume, OAB symptom score (OABSS) and adverse reactions, and compared them among different
RESULTSAmong the patients with mild obstruction symptoms, the combination of tamsulosin and solifenacin achieved remark-groups. able improvement in IPSS, USPSS, Qmax and OABSS as compared with the baseline (P < 0.05), but made no significant difference in the residual urine volume (P > 0. 05) , while tamsulosin improved IPSS only (P < 0.05). The combination therapy exhibited an obvious superiority over tamsulosin alone in improving IPSS (9.7 micro 3.0 vs 15.8 micro 3.3), USPSS (8. 1 micro 1.7 vs 12.3 micro 3.1), Qmax ([18.6 micro 2.3] ml/s vs [14.2 micro 2.3] ml/s ), and OABSS (5.3micro 1.3 vs 9.7 micro 2.7) (P < 0.05), but there were no obvious differences in residual urine, urine routine test results and adverse events between the two therapies ( P > 0. 05). In those with moderate obstruction symptoms, the combination therapy significantly improved IPSS, VSS, Qmax and OABSS (P < 0.05) but not the residual urine (P > 0. 05) in comparison with the baseline. The tamsulosin therapy achieved obvious improvement in IPSS, VSS, Qmax, OABSS and residual urine. The combination therapy showed a better effect than tamsulosin only in OABSS (4. 8 +/-1.5 vs 6.5 +/-2.5, P < 0.05), but no significant differences from the latter in IPSS, Qmax, VSS, routine urine test results, and adverse
CONCLUSIONCombination therapy of tamsulosin and solifenacin is obviously safe and efficacious in the treatment (P > 0.05). events of both mild and moderate BPH with concomitant OAB, and it is superior to tamsulosin alone.
Aged ; Drug Therapy, Combination ; Humans ; Male ; Middle Aged ; Prospective Studies ; Prostatic Hyperplasia ; complications ; drug therapy ; Quinuclidines ; administration & dosage ; therapeutic use ; Solifenacin Succinate ; Sulfonamides ; administration & dosage ; therapeutic use ; Tetrahydroisoquinolines ; administration & dosage ; therapeutic use ; Urinary Bladder, Overactive ; complications ; drug therapy
7.Manipulative reduction and small splint fixation for treatment of three-part fractures of proximal humerus: a case-control study.
Rong-Xia YUAN ; Ya-Ming YU ; Xia DONG ; Qi-Yi CHEN ; Guo-Yong YANG ; Gui-Yang REN
China Journal of Orthopaedics and Traumatology 2013;26(1):9-12
OBJECTIVETo study Chinese medicine treatment in the three-part of the proximal humerus fractures.
METHODSFrom January 2009 to February 2012, 118 cases of proximal humerus three-part fractures were used two methods of operation and manipulation treatment,that were all acute and closed. In operation group: there were 22 males and 37 females,the mean age of the patients was (65.80 +/- 10.62) years (ranged from 45 to 83 years), and the interval from injury to hospital was (22.58 +/- 22.11) hours (ranged from 1 to 96 hours), used open reduction and locking plate fixation surgery. In manipulation group: there were 21 males and 38 females, the mean age of the patients was (65.98 +/- 11.10)years (ranged from 45 to 85 years), and the interval from injury to hospital was (20.85 +/- 22.63) hours (ranged from 1 to 107 hours), used manipulative reduction and small splinting external fixation. All patients were evaluated with shoulder pain, function, activity and anatomical indicators after treatment.
RESULTSAll patients were followed up for 3 to 12 months with an average of 8.2 months. According to Neer Score, the total scores was 85.47 +/- 6.15 in operation group, 84.95 +/- 5.70 in manipulation group. The satisfaction rate of the operation group were 88.20%, and the manipulation group were 86.40%. The difference was not statistically significant between two groups (P > 0.05).
CONCLUSIONThe two treatment were able to achieve satisfactory results. The manipulative reduction and splinting treatment has the advantage of avoiding the risk of surgery, less blood damage, ensureing the efficacy, and reducing costs. It can effectively treat the proximal humerus three-part fracture.
Aged ; Aged, 80 and over ; Case-Control Studies ; Female ; Follow-Up Studies ; Humans ; Male ; Manipulation, Orthopedic ; methods ; Middle Aged ; Shoulder Fractures ; therapy ; Splints
8.Clinical application of flexible bronchoscopy and balloon dilatation in pediatric respiratory diseases under local anesthesia.
Wei GUO ; Li-Ya WAN ; Yong-Sheng XU ; Li-Xin REN ; Han-Quan DONG ; Zhuo FU
Chinese Journal of Contemporary Pediatrics 2012;14(11):859-862
OBJECTIVETo study the significance and safety of flexible bronchoscopy and balloon dilatation in the diagnosis and treatment of respiratory diseases in children.
METHODSA total of 438 children (236 males and 202 females) with respiratory diseases who were aged from 17 days to 15 years, were examined and/or treated by bronchoscopy (including bronchoscopic intervention) under local anesthesia.
RESULTSOf the 438 children, 311 were diagnosed with pulmonary infection, 68 with atelectasis, 36 with recurrent cough and asthma, 6 with hemoptysis of unknown origin, 6 with bronchial foreign body, 5 with congenital bronchopulmonary dysplasia, 2 with bronchiectasis, 1 with ciliary dyskinesia syndrome, 1 with lung tumor, and 2 with congenital immunodeficiency disease. After bronchoscopic examination, local flushing or bronchoalveolar lavage, and foreign body extraction, marked response was seen in 379 cases and response was seen in 46 cases. High-pressure balloon dilatation under bronchoscopy was performed in 5 cases with inflammatory stricture and achieved satisfying clinical effect. No severe complications were found in bronchoscopy.
CONCLUSIONSBronchoscopy and balloon dilatation under local anesthesia is safe and effective for the diagnosis and treatment of respiratory diseases in children.
Adolescent ; Anesthesia, Local ; Bronchoscopy ; adverse effects ; methods ; Child ; Child, Preschool ; Dilatation ; methods ; Female ; Humans ; Infant ; Infant, Newborn ; Male ; Respiratory Tract Diseases ; diagnosis ; therapy
9.Ultra-Early Surgery for Poor-Grade Intracranial Aneurysmal Subarachnoid Hemorrhage: A Preliminary Study.
Jian Wei PAN ; Ren Ya ZHAN ; Liang WEN ; Ying TONG ; Shu WAN ; Yong Ying ZHOU
Yonsei Medical Journal 2009;50(4):521-524
PURPOSE: To describe the therapeutic effect and possibility of the ultra-early surgery for poor-grade aneurysmal subarachnoid hemorrhage (Hunt-Hess grades IV - V). MATERIALS AND METHODS: Nine cases with intracranial aneurysms, demonstrated by computed tomographic angiography (CTA), were treated by ultra-early surgery under general anesthesia within 24 hours from subarachnoid hemorrhage (SAH), 5 cases were treated within 6 hours and 4 cases in 6 - 24 hours. Preoperative Hunt-Hess grade: 6 cases were IV and 3 cases were V. The clinical outcome was evaluated by Glasgow Outcome Scores (GOS). RESULTS: In operation, difficult dissection occurred in 5 cases (55.6%), and rupture of aneurysm occurred and temporary obstructions were performed in 4 cases (44.4%). After clipping of aneurysm, 2 cases underwent V-P shunt because of hydrocephalus, pulmonary infection occurred in 3 cases, hypothalamus reaction accompanied with upper gastrointestinal hemorrhage in 2 cases. The clinical outcome were favorable (GOS 4 - 5) in 4 cases (44.4%), dissatisfied (GOS 2 - 3) in 3 cases (33.3%), and dead (GOS 1) in 2 cases (22.2%) when patients departed from our hospital. CONCLUSION: The ultra-early surgery can avoid early rebleeding of intracranial aneurysm, therefore, should be considered in the treatment of Hunt-Hess grade IV-V intracranial aneurysms. The appliance of CTA can make it possible to use of ultra-early surgery and improve the therapeutic effect.
Adult
;
Aged
;
Cerebral Angiography
;
Female
;
Humans
;
Intracranial Aneurysm/pathology/*surgery
;
Male
;
Middle Aged
;
Subarachnoid Hemorrhage/pathology/*surgery
10.Quality control of shuanghuanglian freeze-dried powder for injection based on its HPLC-ELSD fingerprints and biological profiles.
Ya-Ming ZHANG ; Dan YAN ; Ping ZHANG ; Yong-Shen REN ; Shao-Feng ZHANG ; Xue FENG ; Xiao-He XIAO
Acta Pharmaceutica Sinica 2010;45(1):93-97
This paper is aimed to provide the methods of quality control and bioassay of traditional Chinese medicine injections including bioassay method. Shuanghuanglian freeze-dried powder for injection (SFPI) was chosen as study object. HPLC-ELSD fingerprints of SFPI had been established and the samples were differentiated by similarity calculation. Meanwhile, biological profiles of SFPI on Escherichia coli had been established by microcalorimetry. The similarity values were calculated using the correlation coefficient, based on quantitative thermo-kinetic parameters (T2m, Tj, I%). The results indicated that HPLC-ELSD fingerprints, which showed content changes of chemical components, could not monitor minimal variation of different samples, especially that of biological pollutants, while biological profiles could sensitively detect antibiotic activity alterations of the samples, which were kept under specific conditions. In conclusion, characterized by two-dimension, microcalorimetry could supply thermograms as biological profiles characterized to describe the bioactivity of drugs. This study could clearly demonstrate that the correlative detection was proposed as an efficient strategy for quality control of SFPI, based on HPLC-ELSD fingerprints and biological profiles, which could detect quality fluctuation of samples early and quickly and predict the potential adverse drug events (ADE) for ensuring clinical safety.
Calorimetry
;
Chromatography, High Pressure Liquid
;
methods
;
Drug Combinations
;
Drugs, Chinese Herbal
;
administration & dosage
;
chemistry
;
pharmacology
;
Escherichia coli
;
drug effects
;
Freeze Drying
;
Injections
;
Light
;
Powders
;
Quality Control
;
Quantitative Structure-Activity Relationship
;
Scattering, Radiation