1.The efficacy and safety of Prostant ~(TM) in the treatment of chronic prostatitis: a multi-center,randomized,double-blind,placebo-controlled clinical trial
Ningchen LI ; Kai ZHANG ; He XIAO
Chinese Journal of Urology 2001;0(11):-
Objective To evaluate the efficacy and safety of Prostant TM and the patients’ compliance with the treatment of chronic prostatitis of different types. Methods A multi-central,randomized,double-blind,placebo-controlled clinical trial was conducted between June 2002 and December 2002.A total of 125 patients who had been diagnosed as chronic prostatitis and classified according to NIH classification system for prostatitis were divided into two groups: the trial group treated with Prostant TM anally one pill per night for 30 days and the control group given placebo in the same way.The efficacy was evaluated by the NIH chronic prostatitis symptom index (NIH-CPSI) and the WBC count in EPS after the treatment. Results Based on leukocyte and culture results,124 evaluable patients were stratified,with 48 cases of categories Ⅱ(38.7%),45 cases of Ⅲa(36.3%) and 31 cases of Ⅲb(25.0%)with chronic prostatitis.The overall NIH-CPSI scores were averagely reduced by 10.37 points in trial group and 6.65 in control group,and the symptom scores were averagely reduced by 7.34 in trial group and 4.72 in controll group,compared with pre-treatment.Significant differences of reduction were found between the two groups(P
2.The Study in the US Biotechnology Industry Policy
China Biotechnology 2006;0(03):-
As the cradle of modern biotechnology, the U S biotechnology industry is in the lead of the world. This paper researches and summarizes the U S accelerating biotechnology industry policy and measure in the science& technology management、capital support、industrialization、preferential revenue、human resource and industry cluster. The purpose of the study is to help China constitute the policy to accelerate our biotechnology industry development.
3.The diagnostic value of MRI in patients with placenta previa and implantation presented negative in ultrasound
Xin ZHAO ; Kai ZHANG ; Yichang XIAO ; Xiao'an ZHANG ;
Journal of Practical Radiology 2017;33(6):591-594
Objective To discuss the role of MRI in diagnosis and for the placenta previa and implantation presented negative in ultrasound.Methods Patients of placenta previa without placenta implantation confirmed by ultrasound were analyzed retrospectively.The patients were divided into A and B groups according to different treatment stages.A group underwent uterine segment cesarean section directly without MRI.B group underwent MRI scan first.And the MRI positive patients (B1 group) got abdominal aortic balloon temporarily block technique combined with the lower uterine segment cesarean section,if necessary,uterine artery embolization.The negative ones (B2 group) got uterine segment cesarean section directly.The placenta implantation was diagnosed by operation and (or) pathology.The maternal blood loss and hysterectomy rate between A and B group were compared.Results The sensitivity and specificity of MRI scan in placenta implantation was 0.75 and 0.916.The blood loss showed significant difference (P<0.001).Hysterectomy rates presented no significant difference (P>0.05).Conclusion When the ultrasound only showed placenta previa without implantation,the further test of MRI scan could detect the placenta implantation patients.After diagnosed by MRI,obstetrics and gynecology jointly intervene could effectively reduce the blood loss,or reduce the rate of hysterectomy.
4.Comparison of IOL master and ultrasound biomicroscopy in anterior chamber depth measurement
Wen-Kai, ZHOU ; Xiao-Yan, LI ; Jin-Song, ZHANG
International Eye Science 2009;9(6):1030-1031
AIM: To compare the measurement of anterior chamber depth(ACD) inclusive of corneal thickness using intrao-cular lens(IOL) master and ultrasound biomicroscopy (UBM) and evaluate the repeatability of each method.METHODS: Two consecutive measurements of ACD were prospectively performed using IOL master and UBM in 60 eyes in 60 individuals. Mean values were compared using the paired t test. For each individual, ACD measure-ments was performed 5 times to estimate the repeatability of each method by a coefficient of variation(CV).RESULTS: The mean ACD was 2.95±0.25mm with the IOL master and 2.96±0.22mm with the UBM. This diffe-rence was not statistically significant (P=0.631).The coefficient of variation (CV) was 0.56%±0.26% and 0.65%± 0.36% in IOL master and UBM, respectively.CONCLUSION: The mean ACD of IOL master was the same as UBM. The repeatability of IOL master is better than UBM.
5.Progress on the role of autophagy in spinal cord injury.
Kai-liang ZHOU ; Xiao-lei ZHANG ; Kai WU ; Yong-li WANG ; Hua-zi XU
China Journal of Orthopaedics and Traumatology 2015;28(8):695-698
In recent years, the study of autophagy in spinal cord injury (SCI) gradually becomes the hot spot. However, the function of autophagy in the injured spinal cord is still controversial. In order to further understand the role of autophagy after SCI, we summarized the activation of autophagy, autophagic cell death, the relationship between autophagy and apoptosis, the function of autophagy in promoting the molecular metabolism and the role of autophagy after spinal cord injury. We concluded that the role of autophagy after SCI is a double-edged sword. Upregulating the level of autophagy appropriately can promote damaged proteins metabolism and inhibit apoptosis. However, excessive activation of antophagy may induce autophagic cell dealth. So we consider that the proper regulation of autophagy will be a new target in the treatment of SCI.
Animals
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Apoptosis
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Autophagy
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physiology
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Humans
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Spinal Cord Injuries
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etiology
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pathology
6.Expressions of SOX2, TWIST, and SNAIL in breast cancer and their clinical implications
Hanjun LI ; Kai CHENG ; Xiao CHEN ; Kai ZHANG ; Huijuan ZENG ; Jingdong WANG ; Shaohua WANG
Journal of Medical Postgraduates 2016;29(10):1059-1062
Objective As important transcription factors, SOX2, TWIST and SNAIL are closely related to breast cancer me?tastasis. The aim of this study was to explore the expressions of SOX2, TWIST and SNAIL in breast cancer and the relationship between the three factors. Methods We collected 74 specimens of breast cancer and another 74 from paired normal tissue from January 2012 to January 2013. Using immunohistochemistry, we determined and compared the expression of SOX2 in the breast cancer and normal tissues. We also detected the expressions of TWIST and SNAIL proteins and analyzed the relationship of SOX2, TWIST and SNAIL ex?pressions with the clinicopathological characteristics of breast cancer as well as the correlation between the three proteins. Results The expression of SOX2 was significantly higher in the breast cancer than in the normal tissues (25.7% vs 8.1%, P=0.004) and corre?lated with the grade, lymph node metastasis, and TNM stage of breast cancer ( P<0.05) , while the expressions of TWIST and SNAIL were significantly correlated with lymph node metastasis and clinical TNM stages of the malignancy ( P<0.05) . The protein expression of TWIST was correlated positively with those of SOX2 ( Cc=0. 325, P<0.005) and SNAIL (Cc=0.308, P<0.008), and so was that of SNAIL with that of SOX2 (Cc=0.275, P<0.018). Conclusion The SOX2 protein is highly expressed in breast cancer. The expres?sions of SOX2, TWIST and SNAIL are closely related to lymph node metastasis of the malignancy and the three factors are interacted coor?dinatively in the metastasis of breast cancer.
7.Primary Study on Co-inoculum of Peanut Bradyrhizobium and Molybdate and Boron
Yuan-Xue CHEN ; Kai-Wei XU ; Xiao-Ping ZHANG ; Xiao-Yong PANG ; Hui-Quan GUO ;
Microbiology 1992;0(03):-
Aiming at molybdate and boron deficient acid purple soil from main peanut cultivated areas in Sichuan,and Mo and B requirement of peanut growth,the feasibility of Co-inoculum of peanut Bradyrhizobium and molybdate and boron was studied.The tolerance to molybdate and boron of the tested strains Spr2-9,Spr4-5 was inspected.The result indicated that the two tested strains could tolerate higher concentration of molybdate than that of boron.The compound inoculum of Bradyrhizobial strain and trace element Mo was developed.The optimum concentration of Mo was 0.4%.
8.Mid-to long-term clinical outcome of Bernese periacetabular osteotomy in adolescents and young adults with develop-mental dysplasia of the hip
Hui CHENG ; Hong ZHANG ; Dianzhong LUO ; Kai XIAO ; Huiliang ZHANG ; Jiancheng ZANG ; Ing HONGXCHANG ; Daguang ZHANG
Chinese Journal of Orthopaedics 2014;(12):1190-1197
Objective To discuss the mid?to long?term results and possible prognostic factors of Bernese periacetabu?lar osteotomy for adolescents and young adults with developmental dysplasia of the hip. Methods Bernese periacetabular os?teotomy was performed on 162 patients (171 hips) with hip dysplasia from August 1997 to July 2009. Follow?up data was ac?quirable completely in 123 cases (137 hips), including 30 males (33 hips) and 93 females (104 hips). Age of surgery was 12-48 years (average 27.1 years). The X?ray radiographs and Harris scores were recorded preoperatively and at the last follow?up. The lateral center?edge angle (LCE), acetabular incline angle (AI), continuity of Shenton's line were also recorded. The grades of the hip osteoarthritis were classified by T?nnis classification. Insufficient corrections of osteotomy, excessive corrections of osteotomy, nonunion of the pubis, nerve injuries, and vascular injuries were recorded as complications. Results All the con?tactable cases was followed up again in June and July in 2014. Follow?up duration was 5-17 years (mean, 8.1 years). The LCE angle improved from 7.13° ± 8.86° preoperatively to 30.17° ± 14.98° at the final follow?up. The T?nnis acetabular incline angle decreased from 27.84° ± 12.85° preoperatively to 7.06° ± 10.58° at the final follow?up. The continuity of Shenton's line was in?tact in 106 cases postoperatively, compared with 87 cases preoperatively. Harris score improved from 83.34±9.82 preoperative?ly to 92.79±7.05 at the last follow?up. There was significant correlation between preoperative Harris score and Harris score at the last follow?up. Early complications were observed in 15 cases (15 hips), along with 17 cases (17 hips) of progressions of hip osteoarthritis. Survival rate of the hip at the last follow?up was 97.8%. Conclusion Bernese periacetabular osteotomies can significantly improve bone coverage and joint function of hip dysplasia patients with low rate of short?term complications. Further?more, there was little osteoarthritis progression observed, with good survival rate of the joint in mid?to long?term follow?up. Lower pre?operative Harris scores and higher pre?operative T?nnis classifications are important prognostic factors for post?operative pain.
9.Treatment of osteomyelitis and bone defect of femoral shaft by external fixation and bone transport.
Bing-yuan LIN ; Qiao-feng GUO ; Kai HUANG ; Li-feng SHEN ; Xiao-wen ZHANG ; Chun ZHANG
China Journal of Orthopaedics and Traumatology 2015;28(9):850-853
OBJECTIVETo discuss the clinical effects and superiority of applying external fixation and bone transport to treat osteomyelitis and bone defect of femoral bone.
METHODSFrom August 2008 to December 2013,16 patients with osteomyelitis and bone defect of femoral bone were treated including 11 males and 5 females with an average age of 42 years old ranging from 13 to 62 years old. The average course of disease was 18 months ranging from 2 months to 4.5 years, and the average length of bone defect was 7.8 cm ranging from 4.5 to 15 cm. The bone defect of all cases were treated by external fixation and bone transport, the bone transport began at 1 week after operation, 1 mm per day and 4 times per day.
RESULTSAll patients were followed up for 10 to 36 months (means 22.5 months). One patient did not cooperate with treatment leads to the failure, then took the amputation. The remaining 15 cases of osteomyelitis were under control, including 12 cases of bone transport achieved one stage bone union, 3 cases achieved bone union via bone graft from iliac bone. The bone union time was 5 to 13 months(means 7.9 months). Thirteen patients almost obtained the same length of two lower extremities,2 patients had shortening of 1.5 to 2 cm. The time of moving the external fixation was from 6 to 16 months (means 9.3 months).
CONCLUSIONApplication of external fixation and bone transport is an effective method in treating the osteomyelitis and bone defect that can control the infection, eradicate wounds, and be the equalization of limb length.
Adolescent ; Adult ; Bone Transplantation ; External Fixators ; Female ; Femur ; surgery ; Humans ; Male ; Middle Aged ; Osteomyelitis ; surgery
10.Clinical research on plasma and urine neutrophil gelatinase-associated lipocalin of lupus nephritis
Weiji XIE ; Xialan ZHANG ; Liling ZHANG ; Kai HONG ; Zaixiong XIAO ; Dongxiao CHEN ; Yiqun GENG
Chinese Journal of Postgraduates of Medicine 2010;33(36):1-3
Objective To study the clinical significance ofneutrophil gelatinase-associated lipocalin (NGAL), which in serial plasma and urine samples was measured in participants with lupus nephritis (LN)and healthy persons. Methods NGAL in serial plasma and urine samples was measured by enzyme-linked immunosorbent assay (EL.ISA) in 35 patients with LN by 1997 ACR systemic lupus erythematosus (SLE)standard with varied degree of kidney damage and 30 healthy persons with matching sex and age in physical examination center. Disease activity was measured by the SLE disease activity index (SLEDAI-2K),and 35LN patients were classified in active group and (25 cases) non-active group (10 cases) according to the SLEDAI-2K. Results Urinary NGAL were significantly increased in LN patients [(78.94 ± 81.97) μg/L]compared with healthy persons[(28.50 ± 18.08) μ g/L] (P = 0.002). And urinary NGAL were significantly increased in active group [(92.90 ± 94.88) μg/L] compared with non-active group [(48.20 ± 24.77)μ g/L] (P = 0.049). NGAL in serial plasma had no statistically significant difference between active group and non-active group (P >0.05). Conclusions NGAL in urine but not in plasma represents a novel biomarker for renal disease activity in LN. The increase might be related to renal tubule pathological changes.