1.Real-time Ultrasound-guided Interventional Chemotheraphy Via Pericarcial, Pleural and Peritoneal Cavities
Chinese Journal of Ultrasonography 1995;4(6):278-280
Forty-three cases of malignant tumors with metastases to serous cavites were treated by interventional chemotherapy under ultrasound guidance and monitoring. 43 cases (83 injections) were all successfully operated and followed up. After peritoneoclysis, besides the common side effects of chemotherapyie nausea and vomiting, 3. 8% of the patients had abdominal pain and 75. 5% had abdominal distention. No complication of hemorrhage, infection, drug leakage or organ injury oceurred. It is suggested the method is safe easily to be used especially for the intracavitary chemotherapy of malignaant tumors and deserves to be widely employed.
2.Association of serum adiponectin and tumor necrosis factor alpha with endothelial damages in metabolic syndrome patients
Hailiang WU ; Yajuan LIU ; Ruiying YANG
Clinical Medicine of China 2010;26(3):239-242
Objective To investigate the association of serum adiponectin and tumor necrosis factor alpha (TNF-α) with endothelial damages in metabolic syndrome (MS) patients. Methods One-hundred and five patients diagnosed as MS were recruited as cases and 37 subjects without characteristics of MS were recruited as controls. The cases were divided into two groups according to the level of serum von Willebrand factor (vWF) :normal endo-thelial functional MS group (57 patients) and abnormal endothelial functional MS group (48 patients). Serum adi-ponectin concentration was measured by enzyme-linked immanosorbont assay (ELISA). Serum TNF-α concentration was measured by radioimmunoassay (RIA). Results The concentration of serum adiponectin in normal subjects (10.5 mg/L [SD:3.2]) was significantly higher than both that of normal endothelial functional MS group (7.9 mg/L [SD :2.2]) and abnormal endothelial functional MS group (6.5 μg/L [SD :2.5]) (P < 0.05). The concen-tration of serum TNF-α in normal subjects(0.17 μg/L [SD :0.04]) were significantly lower than that of normal en-dothelial functional MS group (0.19 μg/L [SD:0.05]) and abnormal endothelial functional MS group (0.23 ng/mi [SD: 0.06]) (P< 0.05). The level of serum adiponectin were negatively correlated with TNF-α(r=- 0.555, P < 0.01). Logistic regression analysis results showed that high level of TNF-α was a risk factor of endo-thelial damages (OR = 20.649, P = 0.035), whereas high level of serum adiponectin protected against endothelial damages (OR = 0.340,P=0.006). Conclusions Low level of serum adiponectin and high level of serum TNF-α may correlate with endothelial damages in MS patients.
3.Progresses of 18F-FDG PET/CT in differential diagnosis of pleural effusion
Yajuan LYU ; Hongmei LIU ; Jiandong ZHANG
Journal of Chinese Physician 2016;18(5):664-667
18F-2-fluro-D-deoxy-glucose (18F-FDG) is used by positron emission tomography/computed tomography (PET/CT) examination as an imaging agent,by observing the uptake of the agent of the lesion to determine its metabolism,and make a diagnosis.It can provide anatomical and functional at the same time,not only qualitative but also position and can significantly improve the accuracy of diagnosis.Currently PET/CT has been widely used in the clinical aspects of the differential diagnosis of benign and malignant tumors,prognostic assessment and so on.The property of pleural effusion is important to the treatment and prognosis of the disease.
4.Correlation between blood aryl hydrocarbon receptor, cytochrome P-450 1A1 mRNA expression and skin changes in people with endemic arsenic poisoning
Na CUI ; Yanhong LI ; Jianping LIU ; Kegong WU ; Yajuan XIA
Chinese Journal of Endemiology 2016;35(9):645-649
Objective Though measuring the expression levels of blood aryl hydrocarbon receptor (AhR) and cytochrome P-450 1A1 (CYP1A1),to explore the relationship between the expression levels and chronic arsenic poisoning induced skin changes.Methods Totally 233 residents were selected in Hanggin Rear Banner arsenic exposure area of Bayannur City,according to water arsenic concentrations,these people were divided into control (< 10 μg/L,55 people),low (10-< 100 μg/L,47),medium (100-< 200 μg/L,45) and high (≥200 pg/L,86) arsenic exposure groups.Real-time PCR was used to detect the expression levels of blood AhR and CYP1A1 mRNA,which were presented in median and quartile [M (Q1-Q3)],and the relationships between their expression levels and keratosis,depigmentation of skin were analyzed.Results The relative expression levels of AhR and CYP1A1 mRNA in high-dose groups were 3.18 × 10-3 (2.42 × 10-3-4.45 × 10-3) and 1.58 × 10-3 (0.80 ×10-3-2.73 × 10-3),which were higher than those in control groups [2.30 × 10-3 (1.53 × 10-3-3.20 × 10-3) and 1.00 × 10-3 (0.59 × 10-3-2.09 × 10-3)],and the difference were statistically significant (all P < 0.05).Compared with control group,the detectable rates of arsenic poisoning,keratosis and depigmentation of skin were higher,and the differences were statistically significant (x2 =20.187,15.848,21.595,all P < 0.05).The detectable rates of arsenic poisoning,keratosis and depigmentation of skin were increased with increase of water arsenic concentrations (x2 =19.012,15.269,16.868,all P < 0.05).Compared with normal [2.54 × 10-3 (1.79 × 10-3-3.43 × 10-3),2.57 × 10-3 (1.78 × 10-3-3.52 × 10-3)],AhR mRNA relative expression levels [4.45 × 10-3 (3.47 × 10-3-8.04 × 10-3),4.45 × 10-3 (4.02 × 10-3-6.25 × 10-3)] of degree Ⅲ keratosis and depigmentation of skin were increased,and the differences were statistically significant (all P < 0.05).Conclusions Chronic arsenic exposure affects the expression level of AhR and CYP1A1 mRNA.Blood AhR mRNA expression may have relationship with endemic arsenic poisoning induced skin change,but blood CYP1A1 mRNA expression may have nothing to do with endemic arsenic poisoning induced skin change.
5.Effect of human p27~(kip1) gene transfection on the proliferation of human tongue squmaous cell carcinoma cells
Wenshu LIU ; Ruhui ZHANG ; Yajuan XU ; Yongzhong XU
Journal of Practical Stomatology 1995;0(04):-
Objective:To investigate the effect of human p27~(kip1) gene on the proliferation of human tongue squamous cell carcinoma(TSCC) Tca8113 cells.Methods:Human p27~(kip1) gene was cloned from normal tissue and reconstructed into eukaryotic expression vector pcDNA3, the recombinant plasmid was transfected into Tca8113 cells with liposome.The integration and expression of exogenous objective gene in the target cells were examined by PCR and flowcytometry,the growth of transfected cells and non-transfected cells was investigated by MTT assay and flowcytometry.Results:p27~(kip1) cDNA was successfully cloned and reconstructed into vector pcDNA3.The gene was trasfected into Tca8113 cells and stable transfection was achieved by screening with G418.After p27~ kip1 transfection the cell proliferation was inhibited,proliferation index decreased(P
6.Strategy on Enhancement of bFGF Gene Expression and Purification of Its Products
Lixin WANG ; Yajuan LIU ; Jian LIN ; Hongxue FAN ; Ningyi JIN ;
Chinese Journal of Cancer Biotherapy 1995;0(02):-
Objective: To adjust the distance between SD sequence and ATG in the same expressive plasmid pLX1 to enhance expression of heterologous bFGF gene in E. coli. Methods: Adjusting the different distance between SD sequence and ATG by Klenow and Mung Bean Nuclease. SDS PAGE and Western blot showed the expressed protein bFGF in E.coli. bFGF proteins were purified by HPHIC, HPGFC and HAC. Biological activity was examined by MTT. Results: Recombinant plasmids pLX2, pLX3 were obtained and the expressive levels were 8.03%, 9.9% respectively. Also the purified bFGF was obtained by HPHIC, HPGFC, HAC and its ED 50 was 2.29 ng/ml. Conclusion: Increasing the bFGF gene dosage by adjusting the distance between SD sequence and ATG could increase the expression level of a desired protein.
7.Clinical values of using platelet rich plasma with autologous fat injection in facial rejuvenation
Chang LIU ; Yuzhe CHEN ; Yajuan XU ; Qi QU ; Jun CHEN
Chinese Journal of Medical Aesthetics and Cosmetology 2016;22(2):67-70
Objective To explore the clinical value of autologous fat injection with platelet rich plasma in facial rejuvenation.Methods 35 female beauty seekers were collected in this study.They were divided into two groups:sample autologous fat group (FAT group,n=20) and combined autologous fat and platelet-rich plasma group (PRP group,n =15).The average level of injection was 34 ml.The fat was collected at the abdominal or thigh sites using 18 G needle connecting with negative pressure suction-pump.The fat was centrifugated 2 min to get rid of the lower layer of water and the upper layer of oil.Weigao PRP extract kit was used to obtain the PRP.The ratio of PRP to fat was 1:5.The injection technique was according to Colemen method.The survival rate,satisfaction and complication were compared between the 2 groups.Results There were no infection,hematoma,fat liquefaction necrosis occurred in the 2 groups.Compared with the FAT group,the skin texture and facial contour of the PRP group was improved.Conclusions The platelet rich plasma can improve the survival rate of fat and has a stable effect,which is one of the safe and ideal methods of facial rejuvenation.
8.Research on influence of intravenous infusion by double-lumen PICC on continuous dynamic CVP monitoring
Haiyan HE ; Yucun LIU ; Wenfeng TANG ; Yajuan CHEN
Chongqing Medicine 2014;(25):3275-3277
Objective To investigate the influence of intravenous infusion by double-lumen peripherally inserted central catheter (PICC)on continuous dynamic central venous pressure(CVP)monitoring.Methods In the patient undergoing the double-lemon PICC,continuous dynamic CVP monitoring was performed by a lumen and the intravenous infusion was conducted by another lu-men.Whether the simultaneous venous infusion affecting the values of continuous dynamic CVP monitoring was observed.Results Intravenous infusion through double-lumen PICC had no influence on simultaneously continuous dynamic CVP monitoring (P>0.05),which could influence the values of CVP monitoring when simultaneously using the intravenous infusion pump(P<0.05). The speed of pumping fluid had no influence in a shout time(10 min),with significant difference(P>0.05).The CVP values could recovered to the status before infusion when continuously infusing after stopping using the infusion pump.Compared with before in-fusion,the CVP values after stopping intravenous infusion had no obvious change(P>0.05).Conclusion Intravenous infusion by double-lumen PICC has no influence on continuous dynamic CVP monitoring.But simultaneously adding infusion pump has certain influence on the CVP monitoring values.
9.Effects of dexamethasone on human trabecular meshwork cell volume-sensitive chloride currents induced by hypotonic
Jixue WANG ; Shu LIU ; Chenlong XING ; Yajuan ZHENG
Journal of Jilin University(Medicine Edition) 2014;(6):1144-1148
Objective To analyze the influence of dexamethasone in the hypotonic-induced volume-sensitive chloride currents in human trabecular meshwork cells,and to investigate the possible mechanism of volume-sensitive chloride channels(VACC)in the glucocorticoid-induced glaucoma(GIG)cases.Methods The human trabecular meshwork cells were seeded in 35 mm diameter plastic petri dishes,so that they could grow in monolayer.The cultured cells were divided into normal cell culture medium group and dexamethasone 1 d,3 d,7 d groups.The chlorine current density values of the cells in four groups were recorded respectively by the whole-cell patch-clamp technique. The differences among groups were compared.Results In normal group,after hypotonic stimulation,under+100 and-100 mV voltage clamp,the outward and inward current density values of the trabecular cells were (19.94±0.87) and (-6.53±0.41)pA/pF.In dexamethasone 1 d,3 d,and 7 d groups,under the same condition,the outward and inward current density values of the trabecular cells were (19.39 ± 1.40)and (-6.42 ± 0.28)pA/pF, (17.97±2.35)and (-5.82±0.94)pA/pF,(17.16±1.16)and (-5.65±0.43)pA/pF.The trabecular cells cultured with dexamethasone for 1 d had lower outward and inward current density values under hypotonic stimulation compared with normal group,but there was no significant difference (P>0.05).The trabecular cells cultured with dexamethasone for 3 d and 7 d,when compared with normal group,had significantly lower outward and inward current density values under hypotonic stimulation (P<0.05 ). Conclusion Dexamethasone could reduce the volume-sensitive chloride current in trabecular meshwork cells,which would affect trabecular meshwork cell volume adjustment.This would possibly cause the increase of the aqueous humor outflow resistance among GIG cases.
10.Application value of fast blood glucose meter in emergency inspection of blood glucose
Mingyan CHEN ; Yajuan XI ; Jianwei WEI ; Ailing LIU
International Journal of Laboratory Medicine 2015;(6):780-781
Objective To explore the clinical application value of fast blood glucose meter in the emergency test of blood glu‐cose .Methods 186 critical patients in or hospital from August 2013 to August 2014 were selected for conducting the clinical re‐search .The average blood sugar was detected in all the research subjects by using the fast blood glucose meter and the fully auto‐matic biochemical analyzer .Results The consistency rate of detection results by the two kinds of detection method reached 22 .04% ,the difference of data was relatively small .In addition ,the detection time for the fast blood glucose meter was significantly shorter than that of the fully automatic biochemical analyzer ,the difference showed the statistical significance (P< 0 .05) .Conclu‐sion The detection results of the fast blood glucose meter have no too large difference with those of fully automatic biochemical an‐alyzer and have the same guidance significance to the diagnosis and treatment .The fast blood glucose meter has the advantages of quickness and convenience ,short time‐consuming and can be used in emergency .