1.Effect of complex prescription of Chinese medicine on ischemic brain of rat
Jian-peng XU ; Hao DONG ; Zhi-gang CHEN ; Jian YANG
Chinese Journal of Rehabilitation Theory and Practice 2002;8(1):13-15
ObjectiveTo study the protection of Chinese herbs on the ischemic brain of rats. Methods 75 Wistar rats were divided into 5 groups, Group 1 for false operation. For the other four groups, the common carotid artery was exposed then was ligatured and cut off, Group 2 for model. From the 20th hour after operation on,Group 3, 4, 5 were fed with complex prescription of Chinese medicine named Prescription 1, 2 and 3 once a day respectively. 3 hours after taking medicine, Groups 2-5 were put in the hypoxia environment for 1 hours, then taking the medicine for 7 days. On the 7th day after operation,the blood was taken from R. atria then the rats were killed and the whole right brains were cut off. Malonaldehyde (MDA), notric oxide synthetase (NOS) and superoxide dismutase (SOD) in the brain tissue and serum, and calcium in the brain were measured respectively. ResultsThe three prescriptions can decrease the quantity of MDA both in brain tissue and serum and the calcium in brain tissue(P<0.05-0.001).Prescription 1 can enhance the activity of SOD in brain tissue while the others can decrease the activity of NOS. The hippocampus cells show tidy, and the number of the necrotic cells decrease greatly among them, Groups 4 and 5 are better than Group 3.Conclusions Prescriptions 1-3 can protect the brain tissue of the rat form ischemic brain injury.
2.Outcomes of T3a Prostate Cancer with Unfavorable Prognostic Factors Treated with Brachytherapy Combined with External Radiotherapy and Hormone Therapy.
Zhi-peng MAI ; Wei-gang YAN ; Han-zhong LI ; Yi ZHOU ; Zhi-en ZHOU
Chinese Medical Sciences Journal 2015;30(3):143-149
OBJECTIVETo evaluate the outcomes of T3a prostate cancer with unfavorable prognostic factors treated with permanent interstitial brachytherapy combined with external radiotherapy and hormone therapy.
METHODSFrom January 2003 to December 2008, 38 patients classified as T3a prostate cancer with unfavorable prognostic factors were treated with trimodality therapy (brachytherapy + external radiotherapy + hormone therapy). The prescription dose of brachytherapy and external radiotherapy were 110 Gy and 45 Gy, respectively. The duration of hormone therapy was 2-3 years. The endpoints of this study included biochemical failure-free survival (BFFS), distant metastasis-free survival (DMFS), cancer-specific survival (CSS), and overall survival (OS). Survival curves were calculated using the Kaplan-Meier method. The Log-rank test was used to identify the prognostic predictors for univariate analysis.
RESULTSThe median follow-up was 71 months. The serum pre-treatment prostate-specific antigen (PSA) level ranged from 10.0 to 99.8 ng/ml (mean 56.3 ng/ml), the Gleason score ranged from 5 to 9 (median 8), and the percentage of positive biopsy cores ranged from 10% to 100% (mean 65%). The 5-year BFFS, DMFS, CSS, and OS rates were 44%, 69%, 82%, and 76%, respectively. All biochemical failures occurred within 40 months. The percentage of positive biopsy cores was significantly correlated with BFFS, DMFS, and OS (all P=0.000), and the Gleason score with DMFS (P=0.000) and OS (P=0.001).
CONCLUSIONST3a prostate cancer with unfavorable prognostic factors presents not so optimistic outcome. Hormone therapy should be applied to prolong the biochemical progression-free or metastasis-free survival. The percentage of positive biopsy cores and the Gleason score are significant prognostic factors.
Androgen Antagonists ; therapeutic use ; Brachytherapy ; Combined Modality Therapy ; Gonadotropin-Releasing Hormone ; agonists ; Humans ; Male ; Neoplasm Grading ; Prognosis ; Prostatic Neoplasms ; mortality ; pathology ; therapy ; Treatment Outcome
4.Angiographic manifestation and transcatheter arterial embolization of proper esophageal artery in hemoptysis
Sen JIANG ; Xiaohua ZHU ; Xiwen SUN ; Wenxiang ZHI ; Bing JIE ; Zhengqian YOU ; Dong YU ; Gang PENG
Chinese Journal of Radiology 2008;42(6):641-644
Objective To investigate the angiographic manifestation of the proper esophageal artery (PEA),the hish risk factom for the presence of the anomalous PEA in hemoptysis and to evaluate the safety of transcatheter aaefial embolization(TAE) of the PEA using gelatin sponge(GS).Methods Selective esophageal arteriography WSS performed in forty-three patients with hemoptysis,including 15 cases of pulmonary tuberculosis,18 cases of bmnchiectasis,7 cases of posttuberculous bronchiectasis and three cases of lung cancer. One case experienced failure of bronchial arterial embolization. The angiographic manifestation of the PEAs Was studied.The complications of the procedure and clinical results were observed in the patients who underwent TAE using GS.Results Thirty-nine PEAs were catheterized selectively in 37 patients(86.0%).Eighteen anomalous PEAs(46.2%)were catheterized selectively in 17 patients (45.9%).The anomalous PEAs showed tortuosity,dilatation,hyperplasia,shunting with pulmonary artery and anastomosis with the bronchial artery.All lesions involved basal segment of inferior pulmonary lobar. Bronchiectasis Was the most frequent disease for PEA abnormality. No complications occurred and satisfactory curative effect Was achieved with TAE of the anomalous PEAs.Conclusions It is necessary to perform selective proper esophageal arteriography when the lesion involves basal segment of inferior pulmonary lobar in hemoptysis.Supplemental TAE of the anomalous PEA using GS is safe and valuable in the management of hemoptysis.
5.The experimental study on effect of the spinal neuron flow with the nerve repair time
Zhao-Peng XUAN ; Lai-Jin LU ; Zhi-Gang LIU ; Jia-Ao YU ;
Chinese Journal of Microsurgery 2000;0(04):-
Objective To measure Ihe effect on rats spinal neuron flow according nerve roots repair time.Methods We adopted the experimental rats on the root avulsion and extravertebral foramen nerve root divison of C_(5~7).We divided them into four groupsin each which there were 16 ratsaccording the type of nerves root injury and repair timeGroup AC:the avulsed roots were reimplanted into the spinal cord and the transeeted roots were sutured to the proximal stump immediately.Group B,Dthe avulsed roots and the transected roots were reimplanted into the spinal cord or were sutured to the proximal stump in delayed 3 weeks each with 16 rats.At the different time point(3 weeks3 months6 months)through pathological examina- tion and immunohistological lechniques and nerve tracing techniqueswe examined the spinal cord and distal nerve trunk in order to observe the pathologic changes and axonal regeneration.Results Group A、C were much better than group B、D in the numberthe conformation and the degree of abatement of spinal motoneu- rons and nissl body.It is the same on the number and the development level of regenerating nerve fiber. Conclusion It had the advantage of neuronal protection and nerve regeneration that reparing the injured nerve roots earlv after nerve roots injury.
6.Adrenal tuberculosis:contrast-enhanced CT features with clinical correlation
Zhi-Gang YANG ; Ying-Kun GUO ; Yuan LI ; Peng-Qiu MIN ; Jian-Qun YU ;
Chinese Journal of Radiology 1999;0(10):-
Objective To investigate the correlation between specific features on contrast-enhanced CT and its clinical findings of adrenal tuberculosis so as to improve the diagnostic accuracy of the disease. Methods Contrast-enhanced CT features in 30 patients with documented adrenal tuberculosis were retrospectively evaluated blindly for the features of location,size,morphology,attenuation and enhancement patterns on CT images,and compared with clinical and pathological materials.Results The common CT manifestations were as follows:enlargement of the adrenal glands in all 30 cases(bilateral 90%,mfilateral 10%)including mass-like enlargement in 13 cases and enlargement but the contours preserved in 17 cases, heterogeneity(28 cases,93.3%),calcification(17 cases,56.7%),and low attenuation in the center with peripheral enhancement(16 cases,53.3%)of the lesions.After antituberculosis chemotherapy, 5 cases of enlarged adrenal glands decreased in size or returned to normal size and configuration,with disappearance of the central low attenuation and new appearance of dot-like calcification in 2 cases.Cochran Armitage trend test showed there was an increasing tendency of calcification rate with clinical duration(X~2= 7.47,P
7.Expression of neuropeptide substance P during wound healing of deep partial thickness scalding in diabetic rats
Tao, NI ; Yong, FANG ; Zhi-gang, MAO ; Peng-gao, YANG ; Xiao-hui, HU
Journal of Shanghai Jiaotong University(Medical Science) 2009;29(6):673-676
Objective To study the expression and change of neuropeptide substance P (SP) during the wound healing of deep partial thickness scalding in diabetic rats. Methods Eighty-four Wistar rats were randomly divided into diabetes mellitus group (n=42) and control group (n=42). Diabetic rat models were established by intraperitoneal injection of streptozotocin (STZ) in diabetes mellitus group, and those in control group were intraperitoneally injected with aseptic citrate buffer solution. Deep partial thickness scalding with diameter of 2 cm on the back were prepared in all the rats. The pre-scalding and post-scalding wound specimens of different time points were obtained, and the percentages of wound closure were calculated. The wound specimens were also obtained for immunohistological staining to compare the areas with positive staining of SP, and ELISA was employed to detect the expression of SP in the wound tissues. Results The percentage of wound closure was significantly lower in diabetes mellitus group than that in control group from 7 days post-scalding (P< 0.01). The areas with positive staining of SP in diabetes mellitus group were much smaller than those in control group at different time points, which was most significant on the seventh day post-scalding[(1 350.93±99.28) μm2 vs(1 715.86± 103.41) μm2](P < 0.01). The expression of SP in the wound tissues was significantly lower in diabetes mellitus group than that in control group at different time points, which was most significant on the seventh day post-scalding[(114.04±9.96) vs(143.39±8.94)](P<0.01). Conclusion The significantly lower expression of SP in wound site may be one of the causes of delayed wound healing in diabetic rats.
8.Clinical and pathological analysis of 504 cases of elderly ocular tumors
Hai-Yan, LI ; Zhi-Gang, YUAN ; Peng-Xia, YANG ; Qian, YANG
International Eye Science 2014;(6):1103-1106
AIM: To analyze the composition, distribution and characteristics of the elderly primary ocular tumors.
METHODS: This was a retrospective study and all 504 cases with primary ocular tumors aged 60 years or older were collected in Shanxi Eye Hospital, during the year 2000- 2012. The onset age, location and pathological pattern were analyzed.
RESULTS: There were 346 cases of benign ocular tumors (68. 7%), and 158 cases of malignancy (31. 3%). Papillomas was the most common type of the benign with 83 cases (16. 5%), followed by a variety of inflammatory cysts and lesions with 69 cases ( 13. 7%) and 64 cases (12-7%) respectively. Among malignant tumors cases, eyelid basal cell carcinoma originated from epithelial was the most common with 72 cases (14. 3%), followed by skin appendages sources malignant tumors with 39 cases (7. 7%). Concerning the location of ocular tumors, there were 282 cases of eyelid tumor (56. 0%) occupied the first position followed by conjunctival tumor with 157 cases (31. 2%).
CONCLUSION: The prevalence and type of primary ocular tumor in elderly people are significant differences from the general population and children's, and the proportion of malignant tumors tended to increase along with the increase of age.
9.Developing a system to promote good prenatal and postnatal care, and good preschool education based on the cellphone platform.
Zhi-Min LI ; Zhi-Gang PENG ; Li XIE
Chinese Journal of Medical Instrumentation 2008;32(2):126-127
Good prenatal and postnatal care and good preschool education are important approaches to raise the diatheses of population for the chinese nation. This article suggests that the cell phone platform can be used to communicate with each other among the hospitals, the government and the common people, through which the useful informations could be transmitted to the relative persons in time. It's also a new way for propaganda of family planning. This article introduces the structure of the system, the creation of the expert database, and the connection to the telecommunication system.
Cell Phone
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Family Planning Services
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methods
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Software Design
10.Research of changes in the mechanical properties and curability of composite core materials modified with ultrafine diamond.
Xiao-yu GU ; Xiao-gang HU ; Dong PENG ; Xin-zhi WANG
West China Journal of Stomatology 2007;25(6):525-528
OBJECTIVEAs a new kind of reinforcing filler, ultrafine diamond (UFD) is added into photocurable composite core materials. The properties of the materials are then measured to see if there is any improvement.
METHODSDifferent content of barium glass and UFD were added into resin matrix to fabricate six groups of photocurable composite core materials. For each group of the materials, the flexural strength, Vicker's micro-hardness and depth of cure were measured. Data of the flexural strength and Vicker's micro-hardness was then collected and analyzed by One-Way ANOVA.
RESULTSFor the two kinds of composites with barium glass of 60% and 70%, only a small quantity of modified UFD with 0.2% weight percentage could improve the flexural strength of the composites by 34% and 21% respectively, the microhardness was improved by 23% and 30% respectively. The depth of cure of the composite core materials were more than 2 mm, which had reached the demand of the corresponding ISO criteria. The addition of UFD could make the composite core materials darker and grayer.
CONCLUSIONMicro-quantity of UFD can improve the mechanical properties of composite resins notably, and it will not affect the curability of the materials, but the defect in the color need to be reformed.
Barium Compounds ; Composite Resins ; Diamond ; Hardness ; Materials Testing ; Methacrylates ; Pliability ; Silicon Dioxide