1.Clinical study on estrogen supplementary treatment for urethra syndrome of menopausal women
Clinical Medicine of China 2001;0(08):-
Objective To improve the understanding,diagnosis and treatment for urethra syndrome of menopausal women.Methods 626 female patients with urethra syndrome took nilestriol of 2 mg/2 weeks orally after initating invalid antibiotic therapy.Then the therapeutic effects were observed and compared.Results 143 cases showed specially remarkable effect (2 weeks),426 cases presented remarkable effect (4 weeks),55 cases produced obvious effect (6 weeks) and 2 cases had common effect (8 weeks).The total effective rate was 100%.There was no complication.Conclusion Nilestriol supplementary treatment for urethra syndrome of menopausal women (1~2 mg/2 weeks) is safe and reliable with good effect.
2.Clinical study of Zn-complex glucose acid as an adjuvant drug for the treatment of the male infertility due to semen of poor quality
Dianting ZHANG ; Zhen LIU ; Yali LIU
Chinese Journal of Urology 2001;0(08):-
Objective To evaluate zinc therapy in the management of infertility due to semen of poor quality. Methods Oral 0.05% zinc gluconate was instituted to 876 cases of male infertility due to semen of poor quality (group A) and 10% calcium gluconate orally to 116 patients as controls (group B).548 men with normal semen served as normal contrast (group C).Semen routine and zinc content in semen fluid and blood semen were assessed 4 weeks before and 4 weeks after the treatment in all.Their couples were followed up for pregnancy or not. Results There was a significant difference of parameters on semen examination and zinc content in semen fluid and blood serum before and after treatment in group A(P0.05).However,there was a significant difference of these parameters between group C and both group B and group A after the drug administration (P
3.Effect of XLGB treatment in the rabbit anterior cruciate ligament transaction models of osteoarthritis
Tan CHENG ; Liu ZHANG ; Zhen LI
Orthopedic Journal of China 2006;0(07):-
[Objective]To assess the protective effects of Xianlinggubao on articular cartilage and subchondral bone in experimental osteoarthritis induced by anterior cruciate ligament transaction (ACLT)in rabbits. [Methods]Thirty healthy Japanese white rabbits were divided randomly into three groups:sham group,ACLT+XLGB group and ACLT+ NS group. Rabbits in ACLT+XLGB group and ACLT+NS group received anterior cruciate ligament transection(ACLT)on the right knee. Rabbits in sham group received untreatment as control. ACLT+XLGB group received a daily administration of XLGB at a dose of 125 mg/kg of body weight for 6 weeks.In contrast,ACLT+NS group received saline at the same dose. All rabbits were sacrificed at 6 weeks after operation. The right femora were removed,measured for bone mineral density (BMD),and then were observed for the macro-pathologic changes with HE staining and graded by Mankin's scale. Expression levels of BMP-2 and MMP-13 were detected by immunostaining. The subchondral bone of right tibial plateau was cut and stained for the measurement of bone histomorphometry.[Results](1)The Mankin's score in ACLT+ XLGB group was significantly lower than that in ACLT+ NS group (P
4.Effects of alendronate on articular cartilage degeneration in rats with anterior cruciate ligament transaction
Qiang LI ; Liu ZHANG ; Zhen LI
Orthopedic Journal of China 2006;0(14):-
[Objective]To investigate the effects of alendronate(ALN)on subchondral bone and articular cartilage in the rat osteoarthritis model induced by anterior cruciate ligament transaction(ACLT).[Method]Twenty-four three-month-old female Sprague-Dawley rats were divided randomly into three groups:Sham group(n=8),ACLT+NS group(n=8) and ACLT+ALN group(n=8)(20 ?g?kg-1?2 d-1 subcutaneous injection for 12 weeks).Bone mineral density(BMD) measurement and bone histomorphometric analysis were made for the subchondral bone of right distal femur and proximal tibia in all rats at 12 weeks post surgery.Degree of cartilage degeneration was scored by Mankin scoring system.Immunostaining for matrix metalloproteinase 13(MMP-13) was performed to investigate the effect of ALN on cartilage matrix loss.[Result]BMD of the subchondral bone in the ACLT+NS group were significantly lower than those in the Sham group and the ACLT+ALN group(P
5.Analysis of dose-volume dependence of acute esophagitis using a random-effect model for concurrent chemoradiation therapy for non-small-cell lung cancer (NS CLC)
Zhen ZHANG ; Helen LIU ; Zhongxing LIAO
China Oncology 2000;0(06):-
Purpose:To analyze the dependence of a cu te esophagitis (AE) on the dose and volume of irradiated esophagus during concur rent chemoradiation therapy of NSCLC.Methods:39 NSCLC patients previously treated with concurrent ch emoradiation therapy were studied , a subset of 62 patients who were recruited e arlier in a randomized phase Ⅲ study designed to evaluate the effect of amifost ine. The radiotherapy regimen was 1.2 Gy/fraction, Bid to a total dose of 69.6 G y. In this study 19 and 20 patients were in the control arm and amifostine arm, respectively. The AE score, evaluated by the RTOG acute morbidity criteria, was collected for each treatment week and one month following radiotherapy. DVH of t he esophagus was computed. A multivariate random-effect logistic model was used to investigate the correlation between the incidence of AE and various dose-vo lume factors among these 39 patients. The variables analyzed included total tumo r dose (TD), the mean and maximum dose to esophagus, the volume of esophagus tre ated above certain dose, and the dose of the esophagus treated to certain volume .Results:Among the 39 patients studied, two patients of the amif ostine arm (11%) and six patients of the non-amifostine arm (30%) experienced g rade Ⅲ AE. Grade Ⅲ AE was first seen at week 4th after a cumulative tumor dose to 36 Gy. However after week 4, it did not increase significantly with dose. Th e cumulative TD and patient sensitivity were found to have the strongest and sta tistically significant influence on the risk of AE in all dose and volume factor s.Conclusions:The risk of severe (grade Ⅲ) AE was associated wit h the cumulative dose to tumor and intrinsic patient sensitivity. Due to the tim e course of the development of AE, the daily dose rate or the cumulative dose by the 4th week of the treatment may be more predicative for the risk of AE rather than the total dose from the entire treatment course. Current clinical practice in using the total dose to assess the normal-tissue toxicity may need to be ad justed to account for the onset time of the acute end-point.
6.The research progress of low T3 syndrome
Yanqing LIU ; Zhen ZHANG ; Jiaqing SHAO
Journal of Medical Postgraduates 2014;(9):978-981
Low-triiodothyronine syndrome is a condition characterized by decreased total serum T 3 and free T3 , along with in-creased serum reverse triiodothyronine but normal levels of thyroxine and thyrotropin .However , it is not caused by the thyroid gland diseases.The latest research progress of mechanisms , diagnosis and clinical significance , and therapy strategy of low T 3 syndrome is reviewed in this paper .
7.Design of infrared detecting intelligent guiding equipment based on man-machine interaction
Fang LIU ; Zhen ZHANG ; Wenchao CHEN
Chinese Journal of Tissue Engineering Research 2008;12(44):8784-8786
This paper introduces the basic concept of man-machine interaction technique and the pathological and physiology basis of its application in guiding equipment. Based on the analysis of demands of blind people, the design for novel intelligent guiding equipment based on man-machine interaction technique was proposed. This method used multiple sense information mainly by infrared technique to detect obstruction and control the advancing direction of whole guiding equipment through the intellectualized judgment and processing by microprocessor to guide the blind. In addition, the principle and process of detecting method, control function, command definition, program design and debugging improvement of the guiding equipment were introduced, and its application and prospect were discussed.
8.Prosthetic control led system based on electroencephalogram signal pattern recognition and acquisition
Fang LIU ; Lei QIAO ; Zhen ZHANG
Chinese Journal of Tissue Engineering Research 2008;12(39):7789-7792
This study introduced the producing theory and producing region of electroencephalogram(EEG)signal as well as containing physiological information and analyzed the purpose,method and procedure of EEG signal pattern recognition,as well as the latest development and related medical theory of EEG signal acquisition.The procedure of EEG signal pattern recognition consisted of information acquisition,preprocessmg,feature extraction and selection,classification estimation and recognition.By studying the association between EEG signal and prosthetic movement,it was concluded that EEG signal controlling prosthesis was feasible.Therefore,a prosthetic controlled system was designed based on EEG signal pattern recognition and acquisition.The system initiated from scalp electrode(or prosthetic electrode),passed through differential amplifier circuit(or prosthetic drive circuit),pre-amplifier circuit,trap circmt,med-amplifier circuit,and filter circuit,and finally reached analog-to-digital converter.It was proven to satisfy various
9.Changes and clinical significance of serum MMP-9,TIMP-1 and VEGF in infants with early wheezing
Juan LIU ; Xinyi GAO ; Zhen ZHANG
Chongqing Medicine 2013;(30):3624-3625
Objective To study the changes and clinical significance of serum matrix metalloproteinase-9(MMP-9) ,tissue inhibi-tor of metalloproteinase-1(TIMP-1) and vascular endothelial growth factor (VEGF) in infants with early wheezing .Methods Ser-um levels of MMP-9 ,TIMP-1 and VEGF in 116 infants with early wheezing(wheeling group)and 36 healthy infant (control group) were detected by using ELISA .Results Serum levels of MMP-9 ,TIMP-1 and VEGF in wheeling group were significantly higher than those in control group(P<0 .05);In wheeling group ,there was a linear relationship between the level of MMP-9 and VEGF ;the ratio of MMP-9/TIMP-1 was significantly lower in wheeling groups than in control group(P<0 .05) .Conclusion The infants with early wheezing have the dangerous of airway remodeling .Detection of serum levels of MMP-9 ,TIMP-1 and VEGF is of a cer-tain significance for intervention therapy to wheezing infants as early as possible .
10.Female urethral syndrome complicated by mental diseases in the aged
Dianting ZHANG ; Zhen LIU ; Yali NI
Chinese Journal of Urology 2001;0(11):-
Objective To study the management of female urethral syndrome complicated by mental diseases in the aged. Metho ds 103 patients were randomly grouped into A and B.Nilestrioli,2mg e very 2 weeks,was instituted to the patients in Group A whereas to patients in Gr oup B,sedatives was instituted in addition to nilestrioli.The therapeutic result was evaluated in the 4th and 8th week.In patients with symptoms unrelieved,diaz epom injection and urethral perfuson of lidocaine were undertaken and the therap eutic effect was studied in the first,second,third and the fourth week. Results In Group A,the symptoms relieved only in 2 out of 46 whe reas in Group B 49 of the 57 patients have had the symptoms relieved (P