1.miR-130b accelerates the neuronal migration in the developing embryonic mice cortex
Basic & Clinical Medicine 2017;37(7):959-962
Objective To study the effects of miR-130b on the neuronal migration in the developing embryonic mice cortex.Methods Pregnancy E15.5 mice were selected and plasmid of miR-130b was injected into the lateral ventricle of the embryonic brain.Two days after eletroporation,murine embryos were collected and cut into frozon coronal slices,then surveyed the neuronal migration under the fluorescence microscope.Results The neuronal migration rates were higher in miR-130b overexpression embryonic cortex,of which 75.1% eletroporated neurons migrated into MZ,compared with the 22.1% in control group.On the contrary,only 7.9% eletroporated neurons stayed in the VZ/ SVZ in the experimental group,compared with the 69.3% in control group.Conclusions miR-130b accelerates the neuronal migration in the developing embryonic mice cortex,its regulational role is worth studying.
2.Study on pharmacological effects and mechanism of Naozhifu as a new drug candidate for prevention and treatment of Alzheimer′s disease base on multiple targets strategy
Chongqing Medicine 2016;45(10):1313-1315,1319
Objective To evaluate the effect of Naozhifu as a multifunctional agents for the prevention and treatment of Alzheimer’s disease(AD) .Methods On 30th after castration ,female mice were received intrahippocampal injection of Aβ1‐42 and ibotenic acid for replicating the AD model .On the next day ,these modeled mice were randomly divided into model group ,low dose of Naazhifu group ,middle dose of Naozhifu group ,high dose of Naozhifu group and piracetam group ,sham operated mice were set as control group .Then the gavage was given once a day for 4 consecutive weeks .Furthermore the step‐down passive avoidance test , morris water maze test and biochemical indicators detection were performed .Results In step‐down passive avoidance test ,the latent period in model group was significantly shortened(P<0 .05) ,the fault frequency was increased when compared with control group (P<0 .05) .During the Morris Water Maze test ,the latent period for seeking escape from platform in AD mice were obviously ex‐tended(P<0 .05) ,the times of passing through the platform was shortened(P<0 .05) ,the swimming path length around the escape from platform ,swimming time and distance in the effective area in AD mice were increased(P<0 .05) ,meanwhile the level of MDA in brain tissue was significantly increased ,while the levels of Ach and SOD were significantly decreased(P<0 .05) .These indicators in middle and high dose of Naofuzhi group obviously improved .Conclusion Naofuzhi has the multi‐target prevention and treatment effect on AD .
3.Experience on Laparoscopic Surgery for Ventriculoperitoneal Shunt
Yaqing SI ; Jiachen WANG ; Shukai WANG
Chinese Journal of Minimally Invasive Surgery 2005;0(08):-
Objective To investigate the value of laparoscopy in the treatment of ventriculoperitoneal shunt(VPS).Methods From August 2000 to August 2008,156 patients with hydrocephalus received VPS in our hospital.During the operation,a drainage tube was placed under the right diaphragm,and then fixed to the round ligament.Results The laparoscopic surgery was successfully completed in all of the cases.A mean of 17-month follow-up(14 to 24 months) was achieved in 133 of them.During the period,no distal VPS obstruction,gastrointestinal symptoms,intra-abdominal organs injury or infection occurred.Seven patients presented with obstruction of the VPS at the ventricle side.Conclusion Laparoscopy is a minimally invasive technique for the treatment of VPS with good outcomes and few complications.
4.Analysis of early postoperative curative effect for computer-assisted total knee arthroplasty
Yuhao YAN ; Jin YANG ; Jiachen PENG
Chongqing Medicine 2016;45(9):1206-1209
Objective To explore the advantages of computer assisted total knee arthroplasty(TKA)by comparing the post-operative 1 year short term effect of the computer assisted TKA and the conventional TKA .Methods A total of 60 patients from September 2013 to September 2014 were randomly divided into two groups and performed TKA by adopting the computer-assisted technology and the conventional technology respectively .The KSS score ,WOMAC score ,Oxford score and long-leg weight-bearing X-ray before operation and at postoperative 1 year were performed for each case and the statistical analysis was conducted . Results All cases were followed up for an average of 12 months (12—14 months) .The mechanical limb axis in the navigation as-sisted group was —0 .033o± 1 .470o ,which in the traditional group was 0 .600o± 2 .989o(t= —1 .711 ,P<0 .05);the proportions of within 3o varus/valgus force lines were 86 .70% and 73 .30% respectively ,the KSS scores were 88 .80 ± 3 .71 and 82 .63 ± 4 .15;the postoperative WOMAC scores were 23 .57 ± 3 .64 and 30 .00 ± 4 .89 respectively ;the Oxford scores were 18 .53 ± 3 .66 and 21 .83 ± 3 .99 ,the differences between the two groups were statistically significant (P<0 .005) .Conclusion TKA by computer navigation guidance can obtain more accurate lower limb force lines ,moreover the navigation group has more advantages in the clinical rehabili-tation effect .
5.Effect of injectable xuebijing on macrophage of intervertebral disc hernial tissue
Jiachen PENG ; Tianhong ZHANG ; Xiaochen FAN
Orthopedic Journal of China 2006;0(17):-
[Objective]To investigate the effect of injectable xuebijing on macrophage ofimervertebral disc hernial tissue.[Method]The pigs were used as animal models after surgery in the intervertebral disc.Macrophage in herniated disc tissue were observed with the immunohistochemical method after it was treated by injectable xuebijing.[Result]Macrophage were found in 11 of 16 herniated disc tissue in the model group,were found in 7 of 16 herniated disc tissue in the low dose xuebijing group,and were found in 6 of 16 herniated disc tissue in the high dose xuebijing group,compared to the model group,all P
6.LABORATORY DIAGNOSIS OF ACANTHAMOEBA KERATITIS
Xinguo DENG ; Jiachen LI ; Lei ZHU ;
Chinese Journal of Parasitology and Parasitic Diseases 1997;0(05):-
Objective] To find a rapid method for diagnosing Acanthamoeba keratitis and identifing Acanthamoeba . [Methods] 10% potassium hydroxide(KOH) wet mount preparations, Acanthamoeba culture, inverted phase contrast microscopy,and pathological examination using H.E. staining and PAS staining. [Results]Using corneal scrapings and corneal materials obtained from surgery,7 cases and 5 cases of Acanthamoeba keratitis were diagnosed by 10% KOH wet mount preparations. 6 strains of Acanthamoeba were isolated in corneal materials of 6 cases by protozoa culture method. The cysts, trophozoites and pseudopods on the trophozoites of Acanthamoeba were directly observed under the inverted phase contrast microscope. The cysts and trophozoites of Acanthamoeba were seen by H.E. staining and PAS staining with 20 h. [Conclusion] Acanthamoeba keratitis could be rapidly diagnosed by 10% KOH wet mount preparations and inverted phase contrast microscopy. Acanthamoeba organisms could be directly observed and identified under inverted phase contrast microscope.
7.Progress in diagnosis and treatment of stomach hepatoid adenocaecinoma
Rudong LI ; Jiachen HOU ; Xiaohan CUI ; Xvdong WANG
Practical Oncology Journal 2017;31(1):53-56
This paper mainly introduces a rare special subtype of gastric cancer , the stomach hepatoid adenocarcinoma .This kind of adenocarcinoma in pathogenesis ,pathology ,treatment and prognosis has great differ-ence from traditional stomach cancer .Because it has both characteristics of gastric carcinoma and hepatocellular carcinoma,and is easily to result in missed diagnosis and misdiagnosis in clinic .It is necessary for us to distin-guish hepatoid adenocarcinoma of the stomach and gastric carcinoma .We may further improve the diagnosis rate of hepatoid adenocarcinoma of the stomach ,and reduce its mortality rate ,prolong the survival period .
8.Blood routine RBC parameters interference factors analysis and countermeasures
Wenting WANG ; Peiqin SHI ; Jiachen XIE ; Haiqing WANG
International Journal of Laboratory Medicine 2014;(24):3404-3405,3409
Objective To explore the reason of serious interference red blood cell(RBC)parameters in blood routine test and correct method.Methods 30 cases of patients whose results of blood routine RBC parameters obviously abnormal ,According to the interference factors were divided into four groups:cold agglutination (7 cases),severe hemolysis(13 cases),high triglycerides (8 cases),high white blood cell(WBC)(2 例).Take appropriate corrective action for processing respectively.The difference of red blood cell parameters were compared with t test.Results To analysis of interference factors and take appropriate corrective meas-ures,RBC parameters could be more close to the real results.Conclusion We should pay attention to the changes of the RBC pa-rameters,analysis of interference factors,and to take appropriate measures to correct,in order to avoid clinical misdiagnosis and mi-stherapy.
9.The effect of Fas gene transfection in combination with cisplatin on rectal carcinoma cells in vitro
Jiachen WEI ; Shiyong LI ; Ping AN ; Bo YU ; Huiyun CAI
Chinese Journal of General Surgery 2001;0(08):-
Objective To study the effect of Fas gene transfection on rectal carcinoma cells in vitro. Methods By using RT-PCR technique, a full length of Fas gene 1007 bp was cloned from actived peripheral mononuclear cells of healthy donors. The fragment was ligated with the pGEM-T Easy and sequenced. The constructed vector was transfected into 8348 cells with lipofectin, the change in expression of Fas gene was determined by RT-PCR. The apoptosis and proliferation of rectal carcinoma cells pre- and posttransfection induced by cisplatin were analysed by ladder and MTT methods. Results Transfection of Fas gene significantly upregulates the expression of Fas in human rectal carcinoma 8348 cells. With the concentration of cisplatin at the level of 1, 5, 10, 20 and 40 mg/L , respectively, the suppression rates of Fas transfection group and control group were 47.2%51.8%57.2%65.4%71.0% and 29.6%33.0%37.8%41.4%47.0% respectively(t=15.33, P
10.Analysis of Rationality of Perioperative Use of Antibiotics in 841 Perioperative Inpatients
Wenyan LI ; Zhichun GU ; Jiachen YAO ; Jueer XU
China Pharmacy 2007;0(35):-
OBJECTIVE:To evaluate the prophylactic use of antibiotics in perioperative period in our hospital. METHODS:The prophylactic use of antibiotics in 841 patients in our hospital in the first 3 months was analyzed statistically. RESULTS:841 patients have used antibiotics,and 74.04% of those patients with typeⅠ incision operation used antibiotics for 3 to 7 days. Cephalosporins and Fluoroquinolones were predominantly used for prophylactic purpose. Irrational use of antibiotics was seen in 714 cases. CONCLUSION:The prophylactic use of antibiotics in our hospital is far from rational,thus it is necessary to put "Guideline on Clinical Use of Antimicrobials" into practice.