1.An experimental study of mild hypothermia via lateral ventricle perfusion of cool Ringer's solution in rabbits after traumatic brain injury
Chinese Journal of Physical Medicine and Rehabilitation 2003;0(10):-
Objective To set up a new method of mild hypothermia via lateral ventricle in rabbits following traumatic brain injury (TBI). Methods Twenty-one New Zealand rabbits were used for this study. TBI was pro- duced with all the rabbits in anesthesia by using free-falling impact model. Animals were randomly divided into three groups: a TBI group, a mild hypothermia group (by perfusion of 25℃Ringer's solution via the lateral ventricle) and a control group. The contents of water and total sodium, potassium of the brain region close to traumatic brain tissue were detected and pathological changes were observed in three groups. Results The number of the injured neurons was increased significantly in both TBI group and mild hypothermia group than that in control group at 72 h after TBI (P
2.Study on the plant estrogen in Chinese herbal medicine.
Ruo-guang WANG ; Zhao-ling YOU ; Guang-rong FENG
Chinese Journal of Integrated Traditional and Western Medicine 2004;24(2):169-171
Drugs, Chinese Herbal
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chemistry
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Humans
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Isoflavones
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isolation & purification
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pharmacology
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Phytoestrogens
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Plant Preparations
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isolation & purification
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pharmacology
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Plants, Medicinal
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chemistry
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Platelet Aggregation Inhibitors
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isolation & purification
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pharmacology
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Pueraria
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chemistry
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Scutellaria baicalensis
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chemistry
3.The effects of high-dose folic acid on vascular endothelial function in patients with coronary artery disease and undergone interventional therapy
Weihong LI ; Xinheng FENG ; Guang WANG
Chinese Journal of Interventional Cardiology 2003;0(06):-
Objective To evaluate whether High-Dose folic acid supplementation may improve endothelial function in patients with coronary artery disease undergone interventional therapy. Methods Forty six patients with coronary artery disease and undergone interventional therapy were divided into two groups: 23 with folic acid supplement (20 mg/d) and 23 Patients without folic acid as the controls for 6 months. Plasma homocystine (Hcy) was measured by fluorescence polarization immunoassay and Flow-mediated endothelium-dependent dilation (FMD) of the brachial artery was assessed by high resolution ultrasound before and after 6 months. Results Compared with the control, folic acid supplementation resulted in lower plasma Hcy levels (8.82?3.32 ?mol/L vs 13.16?5.06 ?mol/L, P
4.Effect of glycated albumin on recurrent cerebral infarction in elderly patients with diabetes ;mellitus
Xiaomeng FENG ; Meng JI ; Guang WANG
Chinese Journal of Postgraduates of Medicine 2016;39(5):440-443
Objective To investigate the effect of glycated albumin on recurrent cerebral infarction in elderly patients with diabetes mellitus. Methods All of 252 elderly acute cerebral infarction patients with diabetes mellitus were chosen from clinics. They were divided into 2 groups: A group ( glycated albumin <19.0% , 117 patients) and B group ( glycated albumin ≥ 19.0%, 135 patients). The clinical characteristics and the recurrent rate of cerebral infarction were compared between two groups. Results The levels of glycated albumin, fasting blood glucose, total cholesterol, low-density lipoprotein cholesterol and triglycerides in B group were significantly higher than those in A group:(21.00 ± 4.93)%vs. (16.75±1.72)%, (9.84 ± 2.89) mmol/L vs. (5.36 ± 1.00) mmol/L, (5.44 ± 1.30) mmol/L vs. (4.57 ± 1.00) mmol/L, (3.13±0.81) mmol/L vs. (2.58 ± 0.74) mmol/L, (2.34 ± 1.61) mmol/L vs. (1.74 ± 1.47) mmol/L, P<0.01 or<0.05. The recurrent rate of cerebral infarction in B group was significantly higher than that in A group: 53.3%(72/135) vs.36.7%(43/117), χ2 = 6.946, P = 0.008. Logistic regression analysis showed that the increase of glycated albumin was the independent risk factor of recurrent cerebral infarction in elderly patients with diabetes mellitus (P=0.048). Conclusions The recurrent rate of cerebral infarction is increased in elderly diabetes patients with high glycated albumin. The increase of glycated albumin is the independent risk factor of recurrent cerebral infarction.
5.Effect of Recombinant Epidermal Growth Factor on Small Bowel Anastomotic Wound Healing
Guang TAN ; Feng ZHU ; Zhongyu WANG ;
Chinese Journal of Bases and Clinics in General Surgery 2004;0(01):-
0.05). The incidence of anastomotic leakage in the control group (16.7%) was higher than that of the study group (4.3%). The area of collagen fibrils 3 d, 5 d and 7d after intestinal anastomosis in the study group were significantly more than that in the control group ( P
6.The clinical characteristics of patients with Brucellar epididymo-orchitis
Xiaowei LIN ; Guang XU ; Libo ZHANG ; Shumin ZHANG ; Feng WANG
Chinese Journal of Endemiology 2017;36(5):374-377
Objective To present the distinction on clinical features,laboratory features,treatment schemes between the patients with and without brucellar epididymo-orchitis,and to provide a theoretical basis for clinical diagnosis and treatment.Methods A retrospective analysis of 223 male patients with brucellosis in the First Hospital of Jilin University from June 2010 to November 2016 was carried out.A comparative analysis of the clinical and laboratory features of 22 patients with epididymo-orchitis and 201 cases without epididymo-orchitis was done.The SPSS 23.0 software was used to analyze the statistical results,P < 0.05 was defined as statistically significant.Results Epididymo-orchitis occurred in 9.87% (22/223) of all male patients with brucellosis.The median ages of patients with and without epididymo-orchitis were 35.5 and 42.0 years old,respectively,the difference was not statistically significant (Z =1.323,P > 0.05).Cases with and without epididymo-orchitis of brucellosis with fever [90.9% (20/22) vs 69.2% (139/201)],chills [54.4% (12/22) vs 28.9% (58/201)],hepatomegaly [22.7% (5/22) vs 3.5% (7/201)],abdominal symptoms [59.1% (13/22) vs 17.4% (35/201)],and urinary tract infection symptoms [31.8% (7/22) vs 3.5% (7/201)],the differences were statistically significant (x2 =4.586,6.076,14.424,20.392,27.059,all P < 0.05).The medians of white blood cell (WBC) count (7.9 × 109/L),erythrocyte sedimentation value (ESR,38.0 mm/h),and aspartate aminotransferase (AST,110.0 U/L) in brucellosis with epididymo-orchitis were higher than those without epididymo-orchitis (5.1 × 109/L, 30.0 mm/h,73.8 U/L),the differences were statistically significant (Z =2.239,2.064,2.762,all P < 0.05).All brucellosis patients with epididymis-orchitis were treated with antibiotics for 8 weeks.The defervescence time was 4.5 days,the time of pain relief was 3.9 days,21 patients were cured,and only Ⅰ patient relapsed.Conclusions Epididymo-orchitis is a common complication of brucellosis.Brucellar epididymo-orchitis is usually characterized with a severe acute clinical presentation,which needs timely diagnosis.Combination of antibiotics treatment for 8 weeks in brucellosis patients with epididymis-orchitis is effective.
7.The role of vitronectin in human umbilical vein endothelial cells conditioned by high glucose
Yu-feng, WANG ; Xia, YANG ; Xiao-guang, DONG
Chinese Journal of Experimental Ophthalmology 2013;(1):49-54
Background Vitronectin is a glycoprotein that has a variety of functions.Its expression was markedly higher in the retina of oxygen induced mice,which was confirmed in our animal model,and also increased in human umbilical vein endothelial cells (人 UVECs) that were cultured in high glucose.However,there was no evidence that showed vitronectin was involved in retinal neovascularization.Objective This study was to observe the influence of vitronectin on cytoskeleton remodeling,cell migration and blood vessel formation in 人 UVECs conditioned by high glucose.Methods 人 UVECs were cultured in high glucose and the expression of vitronectin was knocked down using RNA interference technology.The experiments were divided into the high glucose group (人 UVECs were conditioned with DMEM medium that contained 50 mmol/L glucose),negative interference group (人 UVECs were transfected with control siRNA in advance,and then were conditioned with DMEM medium that contained 50 mmol/L glucose) and positive interference group (HUVEC were transfected with vitronectin siRNA in advance,and then were conditioned with DMEM medium that contained 50 mmol/L glucose).The protein expression of vitronectin was measured by Western blot,and the microfilament cytoskeleton of 人 UVECs was examined by immunofluorescence cytochemical staining followed by fluorescence microscopy.Cell migration ability in a scratch wound assay and blood vessel formation ability in a matrigel assay of 人 UVECs were evaluated.The general differences were analysed by One-Way ANOVA ;further contrasts of the two groups were analysed by the LSD-t test.Results The differences in vitronectin expression of the three groups were not obvious at 0 hour (F=1.064,P>0.05).After 24 hours,vitronectin expression was highest in the high glucose group,lower in the negative interference group,and the lowest in the positive interference group,and the differences were significant (F =15.519,P<0.05).After 48 hours,vitronectin expression of the three groups displayed the same pattern,and the differences were also significant (F=37.521,P<0.05).Immunofluorescence showed that the cytoskeleton structure was most obvious in the high glucose group,moderate in the negative interference group,and was the least obvious in the positive interference group,after both 24 hours and 48 hours.In the scratch wound assay,the cell migration ability of the high glucose group was the highest,lower in the negative interference group,and the lowest in the positive interference group after 24 hours,and the differences were significant (F=90.685,P<0.05).After 48 hours,the cell migration abilities of the three groups displayed the same pattern,and the differences were also significant (F=67.880,P<0.05).In the matrigel assay,after 6 hours,the number of blood vessels formed in the high glucose group was more than that in the negative interference group,and the least amount was found in the positive interference group.The differences among of them were significant (F =86.653,P<0.05).The number of blood vessel formed in the positive interference group was also the lowest after 12 hours,and the differences were also significant (F=18.992,P<0.05).Conclusions Vitronectin can bring about cytoskeleton remodeling,increase in cell migration,and enhancement of blood vessel formation in 人 UVECs conditioned in high glucose.It may be one of the important influence factors of diabetic retinopathy.
8.Recordings of The Hippocampal Field Potentials and Unit Activity by Using Linear Silicon Electrode Array
Zhouyan FENG ; Lei GUANG ; Xiaojing ZHENG ; Jing WANG ; Shuhui LI
Progress in Biochemistry and Biophysics 2006;0(04):-
The rapid development of silicon microelectrode arrays provides an ideal means for the study of spatio-temporal features of neuronal activity in the brain. The stability of the linear silicon electrode array (LSEA) in recording neuronal potentials and its validity in recording unit activity are investigated. The experimental results showed that during the recording of field potentials in the hippocampal CA1 region of anesthetized rats, upward and downward movements of the recording probe for a distance of 200 ?m did not affect the orthordromic and antidromic evoked potentials significantly. The data indicated that the probe movements caused very small damage to the neurons, and the recording was stable. The contact sites that located in the pyramidal cell layer acquired CA1 neuronal unit activity validly. Different types of unit activity from independent neurons were easily distinguished in epochs of recording from a same recording site. These results demonstrated the features of the LSEA, including the facility of probe manipulation, the stability of recording and the abundance of data acquirement. The data will be helpful to the researchers involved in the application of microelectrode array for neuroscience researches.
9.Comparison of the efficacy and safety of suprapubic arc sling and transobturater vaginal tape for the treatment of female stress urinary incontinence
Feng SUN ; Ping FANG ; Guang SUN ; Yan WANG ; Huibing LI
Chinese Journal of Urology 2012;33(6):451-454
Objective To analyze the efficacy and safety of suprapubic arc sling (SPARC) and transobturater vaginal tape (TOT) for female stress urinary incontinence (SUI). Methods A retrospective study was conducted on 275 women ( 139 in TOT group and 136 in SPARC group) in our institute from September 2008 to January 2011.We had compared the complications of the two groups.All the patient's ICI-Q-SF scores and PISQ-12 scores were collected.We compared the pre- and post-operative Qmax and PVR to find out if SPARC or TOT tap cause bladder outlet obstruction (BOO). Results The operative time was 25.1 ± 3.3 min for TOT and 34.8 ± 5.6 min for SPARC.There was statistical difference between the two groups in the aspects of operative time (P =0.00).The improvements of average symptom and QOL scores in patients undergoing TOT and SPARC were statistically significant (P =0.00).The improvements of the PISQ-12 scores in the two groups were statistically significant (P <0.05 ) as well.There was no significant difference (P > 0.05 ) in the total cure rate of TOT and SPARC.The complications post SPARC and TOT were low.In the TOT group,the Qmax changed from 30.2 ± 8.7 ml/s per-operatively to 24.9 ± 8.6 ml/s post-operatively in a week.PVR changed from 1.6 ± 4.2 ml pre-operatively to 3.2 ± 6.5 ml post-operatively in a week.In the SPARC group,the Qmax changed from 31.7 ±9.4 ml/s pre-operatively to 26.9 ± 8.9 ml/s post-operatively in a week.PVR changed from 1.4 ± 3.7 ml pre-operatively to 3.5 ± 6.3 ml postoperatively in a week.All the changes were significant ( P < 0.05 ).And in the SPARC group,the Qmax changed from 31.2 ± 10.0 ml/s pre-operatively to 26.2 ± 9.1 ml/s post-operatively; the PVR changed from 1.8 ± 3.2 ml pre-operatively to 4.7 ± 8.8 ml post-operatively (P < 0.05). Conclusions Both the TOT sling and the SPARC sling have high cure rates for SUI.But the retropubic sling may lead to BOO and other complications,so the transobturate sling is a better treatment option for SUI.
10.Transobturator tension-free tape procedure for treatment of female stress urinary incontinence: A report of 206 cases
Huibing LI ; Ping FANG ; Guang SUN ; Yan WANG ; Feng SUN
Chinese Journal of Urology 2011;32(5):330-332
Objective To assess the safety and efficacy of the transohturator tape (TOT) for surgical treatment of female stress urinary incontinence (SUI). Methods Clinical data of 206 TOT procedures for female urinary incontinence from Jan 2007 to Dec 2009 was retrospectively analyzed.Thirty-one women were identified as having mixed stress urinary incontinence.The mean age was 54.29 years(range,32-81 years),themean disease coursewas 10.31 years (range,1-40 years),and the mean follow-up time was 17.3 months (range,3-39 months).Therapeutic effects were assessed by Grouts-Blaivas outcome score.The results of the operation,complications and changes of urodynarnics were observed. Results The TOT operations were conducted under local anesthesia.The mean operative time was 23.9 min (range,16-35 min),Mean blood loss was 17.8 ml(range,15-30 ml).Short-term complications were as follows:thigh pain 14.08%,dysuria 5.83%,urinary posture change 0.97% and urinary retention 0.49%.The long-term complication rate was 0.97%,including vaginal wall defect and tape exposure in one case:the burr of tape exposure and sex life influence in one case.Long-term symptoms disappeared completely in 202 cases.The cure rate was 98.06%,and the rate of satisfaction was 100%. Conclusions Our results demonstrate that TOT procedure is a minimally invasive,safe and effective surgical treatment for stress urinary incontinence.