1.Clinical Observation of 50 Cases of Intracranial Infection after Neurosurgery
Hongwei GUO ; Peng BAI ; Xiao BAI
Journal of Kunming Medical University 2016;37(7):114-116
Objective To explore the clinical therapeutic effects of postoperative intracranial infection in neurosurgery.Methods Between January 2014 and January 2014,50 patients with postoperative intracranial infection in the department of neurosurgery in our hospital were selected in this study.Among the 50 patients,25 patients were treated by intravenous antibiotic therapy,15 patients were treated with intrathecal and intravenous antibiotics treatment,10 cases were treated by intrathecal injection,intravenous antibiotics and lumbar pool catheter drainage way for treatment,and then we observed the clinical therapeutic effect of three groups of patients.Results In 50 patients,37 patients were cured,3 cases had marked effect,8 patients had effect,2 patients had no effect.Conclusion For patients with neurosurgical operations,to maximally reduce the risk of intracranial infection,it is necessary to take antibiotics according to the actual situation of patients,and make different treatment schemes according to the difference of infection.
2. Study on adsorption of ten injectable drugs by eight kinds of disposable filter membranes for infusion apparatus
Chinese Pharmaceutical Journal 2012;47(8):634-638
OBJECTIVE: To investigate the absorbability of 8 kinds of disposable filter membranes for infusion apparatus to 10 injectable drugs, thus to provide information for clinical medication. METHODS: Each drug was separately dissolved in 250 mL 5% dextrose solution. Samples of drug solutions were collected before and after being filtered by the membranes. These samples were analyzed by HPLC-MS/MS methods. RESULTS: The 8 kinds of membranes had different adsorbabilities to the 10 injectable drugs. CN-CA membrane (CN-CA) and CN-CA Enhance membrane (CN-CA-E) adsorbed more drugs than other membranes (P<0.05). The average adsorption of PES membrane, NL-B membrane and ION membrane to the 10 drugs were lower than 1%. PP membrane and NL membrane to the 10 drugs were lower than 1.5%. CONCLUSION: PES membrane, ION membrane and NL-B membrane have lower adsorbabilityies than other membranes, thus may have little influence on medical treatment. They may be suitable for clinical application. Copyright 2012 by the Chinese Pharmaceutical Association.
3.Expression of p21~(WAF1) and Ki-67 in the lesions of Bowen disease
Shu-Ping GUO ; BAI-LI ;
Cancer Research and Clinic 1997;0(03):-
Objective To investigate the expression and implication of p21~(WAF1) and Ki-67 in the le- sions of Bowen Disease.Methods p21~(WAF1),Ki-67 proteins were examined with immunohistochemical SP method in 35 cases Bowen disease and 12 cases of normal skin or muscosa.Results Both of the expression of p21~(WAF1) protein and Ki-67 protein were elevated in Bowen disease lesions(both P
4.Potential drugs for early Alzheimer's disease:Donanemab injection
The Chinese Journal of Clinical Pharmacology 2024;40(9):1372-1374
Donanemab is a novel anti-amyloid antibody medication that is primarily used to treat early-stage symptomatic Alzheimer's disease.Clinical investigations have demonstrated that it modulates issues with cognitive function and everyday functioning.Preclinical research has discovered that it reduces amyloid deposition in the hippocampus and cortical layers of the brain.To better comprehend cutting-edge novel medications,this article examines the latest research on donanemab.
5.Experimental study on phosphatidylinositol 3 kinase signal transduction pathway in Barrett esophagus genesis
Dongmei GUO ; Chao ZHOU ; Yan BAI ; Wenyuan BAI
Chinese Journal of Digestion 2013;33(4):259-263
Objective To explore the relationship between phosphatidylinositol 3 kinase (PI3K)/protein kinase B (Akt)/mammals target protein rapamycin (mTOR) signal transduction pathway and Barrett esophagus genesis.Methods A total of 140 rats were divided into sham operated group (n=10),iron group (n =10),esophageal duodenal side anastomosis group (n =30),esophageal duodenal side anastomosis plus iron group (n-30),esophageal gastric duodenal side anastomosis group (n=30) and esophageal gastric duodenal anastomosis plus iron group (n=30).In the end,10 normal esophagus tissue specimens,62 reflux esophagitis tissue specimens and 34 Barrett's esophagus tissue specimens were obtained.The expression levels of epidermal growth factor receptor (EGFR),Akt,phospho Akt (p-Akt),phospho-mTOR (p-mTOR) protein were detected by immunohistochemistry.Single factor analysis of variance,SNK between two groups and nonparametric correlation analysis were performed for statistical analysis.Results The protein expression levels of EGFR,Akt,p-Akt,p-mTOR in Barret(s esophagus tissues were higher than those in reflux esophagitis tissues and normal esophagus tissues (EGFR 0.1799±0.0367 vs 0.0438±0.0025 and 0.0277±0.0069,q=6.79,4.13; Akt 0.1874±0.0250 vs 0.0986±0.0093 and 0.0383±0.0048,q=6.51,3.56; p-Akt 0.1418±0.0130 vs 0.0592±0.0027 and 0.0281 ±0.0017,q=7.68,3.99; p-mTOR 0.1591±0.0275 vs 0.0674 ±0.0059 and 0.0112±0.0017,q=5.62,4.11; all P<0.05).The protein expression levels of EGFR,Akt,p-Akt,and p-mTORin reflux esophagitis tissues were higher than those in normal esophagus tissues(q=4.67,4.29,4.27,4.03; all P<0.05).Conclusion PI3K/Akt/mTOR signal transduction pathway were activated in reflux esophagitis and Barrett's esophagus,which provided theoretical basis for clinical multi-target treatment for diseases.
6.Protective effect of total flavones of buckwheat flowers and leaves on myocardial fibrosis of type 2 diabetic rats and its mechanism
Xiangbo GOU ; Jing GUO ; Jing BAI
Journal of Jilin University(Medicine Edition) 2016;42(4):694-698
Objective: To study the protective effect of the total flavones of buckwheat flowers and leaves (TFBFL)on the myocardial injury of the type 2 diabetic rats,and to clarify its mechanism.Methods:The diabetic rat models were established by intraperitoneally injecting streptozotocin (STZ)and taking high-fat diet.The model rats were divided into diabetic model (DM)group and TFBFL treatment (TFBFL)group,while normal control group was set up, 10 rats per group.The rats in TFBFL group were administered with 200 mL· kg-1 · d-1 TFBFL,while the rats in other two groups were given with normal water (10 mL·kg-1 ·d-1 )instead.The rats in various groups was administered once a day for 8 weeks.The body weight (BW),heart weight index (HWI), level of fasting blood glucose (FBG)and cardiac function indexes (HR,LVSP,LVEDP and ± dp/dtmax )of the rats in various groups were measured.The myocardial tissue morphology of the rats in various groups was evaluated by electron microscope and the collagen levels in myocardium tissue of the rats in various groups were observed by Masson staining.The expression levels of TGF-β1 protein in myocardium tissue of the rats in various groups were detected by Western blotting method.Results:Compared with normal control group,the HWI,FBG and LVEDP levels of the rats in DM group were increased (P <0.05 or P <0.01),and the BW, HR,LVSP and ±dp/dtmax level in DM group were decreased (P <0.05 or P <0.01).Compared with DM group,the FBG and LVEDP level in TFBFL group were decreased (P < 0.01 ),and the HR,LVSP and ± dp/dtmax level in TFBFL group were increased (P < 0.05 or P < 0.01 ); but the BW and HWI level in TFBFL group had no significant difference compared with DM group (P >0.05).The Masson staining results showed the morphology of myocardium tissue of the rats in TFBFL group was improved and the collagen level was decreased. The Western blotting results suggested that the TGF-β1 protein expression level in myocardium tissue of the rats in DM group was significantly increased compared with normal control group (P < 0.05),and the TGF-β1 protein expression level of the rats in TFBFL group was decreased compared with DM group (P <0.05).Conclusion:TFBFL exerts a certain protective effect on the myocardial fibrosis of diabetic rats through inhibiting the TGF-β1 expression in myocardium tissue.
7.Effect of medical skin collagen regeneration functional dressing on facial dermatitis
Hongye LIU ; Shuping GUO ; Li BAI
Chinese Journal of Primary Medicine and Pharmacy 2015;(12):1809-1811
Objective To observe and evaluate the healing effect of medical skin collagen regeneration func-tional dressing on facial dermatitis.Methods 40 facial dermatitis patients who met the inclusion criteria were ran-domly divided into the observation group(group A)and control group(group B)averagely.Patients of group A were administrated with ketotifen tablets orally and with medical skin collagen regeneration functional dressing externally,while patients of group B were only orally administrated with ketotifen tablets.The total observation period last 15 days with a follow -up once after 2 days for both of the groups.Results The cure rates of group A after 12 day and 15 day were 63.2% and 65%,higher than the cure rates of group B(5.0% and 5.0%).The 12 day and 15 day cure rates of group A were significantly higher than those of group B(χ2 =14.83,15.82,all P <0.01).Conclusion Medical skin collagen regeneration dressing in combination with fexofenadine tablets provide a safe and effective healing func-tion to facial dermatitis.
8.Comparison of endoscopic variceal ligation and pericardial devascularization in treatment of portal hypertension
Lan BAI ; Xiaozhong GUO ; Hongyu LI
Journal of Clinical Hepatology 2014;30(12):1283-1286
Objective To compare the clinical efficacy of endoscopic variceal ligation versus pericardial devascularization in the treatment of portal hypertension.Methods The clinical data of 101 cirrhotic patients with gastroesophageal varices and variceal hemorrhage from January 2010 to January 2012 were analyzed.Fifty-three patients received endoscopic variceal ligation,and forty-eight patients received pericardial devascularization.Postoperative changes in liver function and hypersplenism were compared between the two groups.The rate of rehaemorrhagia and incidence of postoperative complications after surgery were compared as well.Continuous data were expressed as mean ±SD,and categori-cal data were expressed as number of cases or percentage.Comparison of continuous data between the two groups was made by independent-samples t test,and comparison of categorical data was made by chi-square test.Results After surgery,the variceal ligation group showed no significant changes in liver reserve function,while the albumin level was significantly decreased in the pericardial devascularization group (t=2.512,P<0.05).There were no significant changes in the counts of white blood cells and platelets in the endoscopic variceal ligation group after surgery (P>0.05),but significant increases in the counts of white blood cells and platelets were detected in the pericardial devascular-ization group (P<0.05).The rates of postoperative haemorrhage in the two groups were:3 months,7.5%vs 6.2%(χ2 =0.066,P>0.05), 6 months,7.5%vs 8.3%(χ2 =0.021,P>0.05),and 1 year,9.4%vs 8.3%(χ2 =0.038,P>0.05).The incidence rates of postopera-tive complications in the two groups were 24.5%and 50%,respectively (χ2 =7.040,P<0.05).Conclusion Compared with pericardial devascularization,endoscopic variceal ligation causes fewer microlesions,preserves liver function,and leads to a lower incidence of postopera-tive complications.However,if hypersplenism is observed in the cirrhotic patients with gastroesophageal varices and variceal hemorrhage,peri-cardial devascularization can be used to control the hypersplenism and prevent esophageal hemorrhage.
9.Three-dimensional finite element analysis on the effect of palatal vault shape on the stress distribution of edentulous maxilla surface
Min XIAO ; Lekang BAI ; Sanping GUO
Journal of Xi'an Jiaotong University(Medical Sciences) 1981;0(02):-
Objective To study the effect of different palatal vault shape on the stress distribution of edentulous maxilla surface.Methods Using three-dimensional finite element method(3-D FED),we simulated five bite states,putting five loading conditions on 3-D FED model of maxillary edentulous with three different palatal vault shapes.Results We obtained the stress value and multicolor picture of 3-D FE model.Labial frenal notch zone and alveolar ridge zone were the stress concentration zone of the maxillary edentulous with three different palatal vault shapes under five kinds of loading conditions.The deep palatal vault maxillary edentulous almost had the maximum stress values in labial frenal notch zone,palate zone and alveolar ridge zone,and upper edentulous jaw with palatal torus was the minimum.Conclusion Palatal vault shape can change the stress value of edentulous maxilla surface,but cannot change the stress distribution.Loading condition can change the stress distribution and stress value.
10.Assay of antigens with anti-lung cancer McAb 3C_9 and preliminary evaluation of serological diagnosis for lung cancer
Xuefeng BAI ; Dengshun WANG ; Xianjian GUO
Journal of Third Military Medical University 1984;0(02):-
The antigens(3C9Ag)which could be recognized by the anti-lung cancer monoclonal antibody 3Ca were assayed with BA-ELISA immunobinding inhibition test in 50 lung cancer patients,21 patients with non-cancerous pulmonary diseases and 40 normal subjects.Meanwhile radioimmunoassay was used to determine serum CEA.It was found that the sensitivity,specificity and accuracy for 3C9Ag to diagnose lung cancer were 76%,90.5% and 80.3% respectively.Much higher positive rates could be found in NSCLC patients and in those with stage Ⅱ or Ⅲ cancer.3CsAg was superior to CEA in its sensitivity and accurracy.Combined assay with 3C9Ag and CEA could increase the positive rate.