1.Current situation and development trend of POCT in cardiovascular disease
Chinese Journal of Laboratory Medicine 2013;(6):494-497
Cardiovascular disease (CVD) is one of the most common diseases and the leading causes of death in China.It is of great importance to detect cardiac markers for early diagnosis,treatment and prognosis of CVD.Point of care testing (POCT) is emerging as a new test mode and development trend of laboratory medicine.Application of POCT technology in cardiovascular field is the fastest growing parts of all POCT.It promotes the application and development of POCT because of the contradiction between the important value of cardiac markers and the needs of quick results in severe CVD.With the technological diversification of POCT,the progressing innovation of test devise and standardized test results with reference to the Central Laboratory (CLT),the application of POCT will be more extensive and promote the development of laboratory medicine together with traditional test mode.
2.Application and development of point-of-care testing in domain of tumor markers
Lahong ZHANG ; Yuhua LIU ; Zhaojun CHEN
Chinese Journal of Laboratory Medicine 2014;(11):808-811
Malignant tumors are the most common lethal diseases in China.Because of complexity of etiology and pathogenesis , and the lack of specific markers for early diagnosis , delayed diagnosis and treatment of cancer , the fatality rate is high.With the development of basic research , more and more early specific markers were found , but the current detection mostly depend on the professional laboratories , time-consuming , high price and have a number of inconveniences to patients on time and money.Meanwhile , it′s difficult to extend to zoon of medicine resources deficient.Recently, point-of-care testing (POCT) has been rapidly developed , because of its portability , getting results quickly , can be operated in basic medical units and economic backward areas , so it′s benefit to cancer screening in human.By the application in tumor markers, POCT can be done for the cancer early detection , early diagnosis and early treatment , so then cuts the death rate.
3.Determination of baicalin in the children's Yffei-Pingchuan mixture by RP-HPLC
Zhaojun CHEN ; Zhong LI ; Hui JIN
International Journal of Traditional Chinese Medicine 2011;33(10):900-902
Objective To establish the determination method of baicalin in the children's YifeiPingchuan mixture by RP-HPLC.Methods A Kromasil C18 column was used with methanol-(0.4%)phosphoric acid-triethylamine (45 ∶ 55 ∶ 2 drops) as mobile phase with a column temperature of 28 ℃.The flow rate was 1.0 ml/min.The detection wavelength was set at 277 nm.Results The linear range of baicalin was 0.040~1.000 μg (r=0.9999) with a average recovery of 99.82 and RSD of 1.01%.Conclusion The method for quantification of baicalin was sensitive,accurate,and convenient,which can also be used as one of basis of quality standard for Yifei-Pingchuan mixture.
4.Detection of DD3 mRNA level in peripheral blood of patients with prostate cancer and its clinical value
Yanlan BAO ; Xiao YANG ; Zhaojun CHEN
Chinese Journal of Primary Medicine and Pharmacy 2017;24(18):2756-2759
Objective To study the level and clinical value of differential display code 3 (DD3) in peripheral blood of patients with prostate cancer.Methods 27 patients with prostate cancer from April 2014 to April 2015 in Affiliated Hospital of Hangzhou Normal University were researched.26 patients with non prostate diseases were selected as control group.DD3 mRNA levels were detected in peripheral blood of all patients.DD3 absorbance value of three groups of patients,the relationship between the relative content of DD3 mRNA and the clinical characteristics of prostate cancer,DD3 mRNA in urine and peripheral blood of patients with prostate cancer and benign prostatic hyperplasia were observed.Results In the patients with benign hyperplasia of prostate and non prostate diseases,a total of 4 patients did not appear to be DD3 specific bands.In prostate cancer patients,all patients were found to have DD3 specific bands.The relative content of patients with non prostate diseases was (0.18 ± 0.05) copies/mL.The relative content of benign prostatic hyperplasia patients was (0.30 ± 0.09) copies/mL.The relative content of prostate cancer patients was (0.78 ± 0.23) copies/mL.The positive expression rates of DD3 mRNA in peripheral blood and urine of patients with prostate cancer were 85.18% (23/27),51.85% (14/27),respectively,which were significantly higher than those in patients with benign prostatic hyperplasia[21.42% (6/28),7.14% (2/27)] (x2 =22.416,13.319,all P < 0.05).Conclusion The specific expression of DD3 mRNA in peripheral blood of patients with prostate cancer can be used as an effective basis for judging the patients' condition,and it has certain value for the treatment and prognosis of patients with prostate cancer.
5.Effect of lobe bronchus blockade on intrapulmonary shunt during radical esophagus cancer resection
Chuanhan ZHANG ; Zhaojun CHEN ; Peng WANG
Chinese Journal of Anesthesiology 1995;0(02):-
Objective To evaluate the effect of lobe bronchus blockade with a branchial blocker on intrapulmonary shunt during radical esophagus cancer resection. Methods Twenty four ASA Ⅰ-Ⅲ patients with normal lung function aged 18-69 yrs undergoing elective radical esophagus cancer resection were randomized into 2 groups ( n = 12 each): group A one-lung ventilation (OLV) and group B lobe bronchus blockode. Radial artery and right internal jugular vein were cannulated for BP and CVP monitoring and blood sampling. Anesthesia was induced with midazolam 50 ?g?kg-1, fentanyl 4 ?g?kg-1, propofol 2 mg?kg-1 and vecuronium 0.1 mg?kg-1. In group A double-lumen tube (DLT) was used while in group B a single lumen endotracheal tube was placed first, then a bronchial blocker was inserted fiberoptically into the bronchus of lower lobe of the operated side. The patients were mechanically ventilated (FiO2= 100%, VT = 8 ml?kg-1 , RR = 10-15 bpm, I: E = 1:2). PaCO2 was maintained at 30-35 mm Hg. Anesthesia was maintained with 1.5%-2.0% isoflurane and intermittent Ⅳ boluses of fentanyl and vecuronium. BP, HR, CVP, SpO2, PETCO2 and airway pressure were monitored during operation. Blood samples were taken simultaneously from radial artery and central vein for blood gas analysis before induction of anesthesia when the patients were lying supine and breathing spontaneously (T0), after the lungs on both sides were ventilated for 30 min in lateral position (T1) and 30 min after OLV (group A) or lower lobe bronchus was blocked off (group B) in lateral position (T2). Qs/Qt was calculated (blood from central vein was used instead of mixed venous blood from pulmonary artery) . Blood concentrations of TXB2 and 6-k-PGF1 were determined by radioimmunoassay at T0, T1 and T2. Results There was no significant difference in demographic data between the two groups. At T2 the airway pressure in group A was significantly higher than that in group B. At T2 PaO2 was significantly higher in group B than in group A. Qs/Qt was significantly increased at T1 and T2 as compared to the baselines in both groups. Qs/Qt was significantly increased at T2 compared to that at T1 in group A only, while there was no significant difference between Qs/Qt at T1 and T2 in group B. The TXB2 concentration at T2 was significantly increased as compared to that at T0 and T1 in group A and was significantly higher than that at T2 in group B. Conclusion Lower lobe bronchus blockade was superior to OLV in terms of Qs/Qt and PaO2 during esophagus cancer resection.
6.Value of low doses of gemcitabine chemotherapy combined with high-low oxygen radiotherapy synchronously for therapy of patients with locally advanced pancreatic cancer
Zhaojun DING ; Yanwei SUN ; Xiping CHEN ; Yongheng AN
Chinese Journal of Pancreatology 2012;12(3):153-155
Objective To evaluate the efficacy and adverse effects of low doses gemcitabine chemotherapy combined with synchronous high-low oxygen radiotherapy in patients with locally advanced pancreatic cancer.Methods Fifty-six patients with locally advanced pancreatic cancer were randomly divided into two groups by envelop method:radio-chemotherapy group or chemotherapy group.Patients in radio-chmotherapy group were treated with low doses of gemcitabine chemotherapy ( 600 mg/m2 ) combined with high-low oxygen radiotherapy synchronously,paients in chmotherapy group were treated with full doses of gemcitabine chemotherapy ( 1000 mg/m2).The short-term effect,distant metastasis rate,clinical benefit rate,survival rate and adverse events of two groups were observed.Results There was one patient achievedcomplete relief and 15 patients achieved partial relief in radio-chemotherapy group with an overall effective rate of 66.7% (16/24) ; there were 9 patients achieved partial relief in chemotherapy group with an overall effective rate of 36.0% (9/25),the difference between the two groups was statistically significant (X2 =4.6082,P =0.0318 ).The clinical benefit rates were 83.3 % ( 20/24 ) and 60% ( 15/25 ),respectively,the difference between the two groups was not statistically significant ( P =0.070).The distant metastasis rates were 66.7%(16/24) and 72% (18/25),respectively,the difference between the two groups was not statistically significant (P =0.6855).The 12,24 months survival rates were 62.5% vs 32%,37.5% vs 12%,the difference between the two groups was statistically significant ( P =0.0325,0.0380).The incidence of serious adverse events was 45.8% and 4 0 % without statistical difference.Conclusions Low doses of gemcitabine chemotherapy combined with high-low oxygen radiotherapy synchronously is better than full doses of gemcitabine chemotherapy with regard to total effective rates and 12,24 months survival rates,with no obvious increase in the incidence of serious adverse events.
7.Application of the displacement of the ventricular bands-epiglottis mucosalflap in the surgical management of glottis carcinoma
Lili CHEN ; Zhaojun QIN ; Changwen DAI
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2009;(18):826-827
Objective:To investigate the plastic method of glottis carcinoma in surgery. Method:Retrospectly analyzed 29 patients with T_2 ,T_3 glottis carcinoma who admited in our department From 1996 to 2004. All of them were treated with the displacement of ventricular bands-epiglottis mucosal flap in the surgical management of glot-tis carcinoma. The tumour was primarily from vocal cords, and not exceeded 2cm. Result: All cases were success-fully renovated laryngeal cavity with the displacement of ventricular bands-epiglottis mucosal flap and followed up for 5 years after operation. Three years survival rate was 86.2% ,5 years survival rate was 78.9% ,and tube draw-ing rate was 100%. Conclusion: With this method, surgery would be simplified and the patients would keep the voiced function and swallowing function.
8.Sulfur mustard-induced changes of IL-2 and IL-6 concentrations and lymphocyte DNA damage in dog peripheral blood
Hai LIN ; Zhilong CHEN ; Zhaojun DONG ; Shili WANG ;
Journal of Third Military Medical University 2002;0(12):-
Objective To study the changes of IL 2 and IL 6 levels and lymphocyte DNA damage in peripheral blood of dog intoxicated by sulfur mustard. Methods Chongqing dogs were subcutaneously injected with sulfur mustard at the dose of 16 mg/kg. Lymphocytes and serum were isolated from dog peripheral blood at different time points as designed. The IL 2 and IL 6 levels in blood serum were measured by radioimmunoassay and lymphocyte DNA damage represented as comet tail length was determined by single cell gel electrophoresis (SCGE). Results Four hours after administration of sulfur mustard, the serum IL 2 and IL 6 levels dogs injected with sulfur mustard decreased and reached the lowest level at 72 h. A significant recovery was found at the time point of 120 h. SCG revealed sulfur mustard induced DNA fragmentation (comet) in dog peripheral lymphocytes. The rate of the damaged lymphocytes and the degree of DNA fragment migration began to increase at 4 h and progressively increased from 24 h to 72 h after sulfur mustard treatment. Conclusion Sulfur mustard intoxication induces early and long lasting decreases in serum IL 2 and IL 6 levels and lymphocyte DNA fragmentation in dog peripheral blood.
9.Investigation on the necessity of development of information system integration platform in county hospital
Zhaojun CHEN ; Laizheng CAO ; Chengxing HAN ; Ning LIU ; Guohua QIU
Chinese Journal of Primary Medicine and Pharmacy 2017;24(2):316-317,318
Objective To evaluate the necessity of construction of hospital information system integration platform for county Hospital as the urban and rural medical hub in the context of the development of modern medical information.Methods By referring to the development of the domestic and international integration platform,and comprehensively considered the development status of the county hospital,and analyzed based on the perspective of sustainable development.Results The hospital information integration platform was formed to meet the needs of the county hospital,and it platform was used to open up the internal and external medical information resources,realize the integration of business resources and process optimization..Conclusion The county hospital building information system integration platform is the inevitable trend of the current construction of information technology,and its comple-ted construction can enhance province -city-county tertiary care facility data communication,reduce the coupling within the hospital business systems,and make the county hospital more flexible in the future construction and devel-opment.
10.Clinical characteristics of rheumatoid arthritis caused by pauciarticular arthritis
Bin WANG ; Zhu CHEN ; Xiangpei LI ; Zhaojun GUO
Chinese Journal of Disease Control & Prevention 2017;21(9):935-938
Objective To improve the comprehensive understanding and treatment level of the disease by analyzing the clinical characteristics of rheumatoid arthritis (RA) caused by pauciarticular arthritis.Methods The method was retrospective analysis and summary of clinical and laboratory data of 198 cases of patients with RA,in which 98 cases of pauciarticular arthritis belonged to the observation group and 100 cases of polyarticular arthritis belonged to the control group.Results Male patients in observation group were obviously more than those in the control group (t =2.456,P =0.015).Courses of disease was obviously shorter than those in the control group (t =-2.450,P =0.018).The number of involved joints was obviously less than those in the control group (t =-6.316,P <0.001).The incidence of morning.stiffness was significantly less than those in the control group (t =-3.884,P < 0.001).Rating scores of disease activity score 28 were significantly lower than those in the control group (t =-8.694,P < 0.001).And positive rate of anti-cyslic citrullinated peptide antibody is significantly higher than those in the control group (t =-2.299,P =0.022).Thyrotrophin levels were significantly higher than those in the control group (t =3.809,P < 0.001).There was no significant differences in age,erythrocyte sedimentation rate and C reactive protein,immunoglobulin and complement level,free triiodothyronine,free thyroxine,blood lipids,blood system and kidney involvement between the two groups (all P > 0.05).Conclusions The conclusion turns out to be that there are no typical clinical manifestations showing that rheumatoid arthrifts is caused by pauciarticular arthritis.Maybe it is the early performance of disease.It is worth attention that concurrent subclinical hypothyroidism turns out to be more.