In view of the fact that medical inspection equipment sold in the domestic market is mainly imported from abroad and very expensive, we developed a full-automatic fluorescence analyzer in our center, presented in this paper. The present paper introduces the hardware architecture design of FPGA/DSP motion controlling card+PC+ STM32 embedded micro processing unit, software system based on C# multi thread, design and implementation of double-unit communication in detail. By simplifying the hardware structure, selecting hardware legitimately and adopting control system software to object-oriented technology, we have improved the precision and velocity of the control system significantly. Finally, the performance test showed that the control system could meet the needs of automated fluorescence analyzer on the functionality, performance and cost.
Automation, Laboratory ; Equipment Design ; Fluorescence ; Software

OBJECTIVE:To evaluate the effects of 3 kinds of serum containing blood-activating and stasis-eliminating TCM compound formulas on aggressive behavior,Janus kinase (JAK)/signal transduction and transcriptional activator (STAT) pathway of glioma U251 cells. METHODS:Rats were randomly divided into normal saline group (5 mL/kg),Taohong Siwu decoction group(5.7 g/kg),Xuefu Zhuyu decoction(8.5 g/kg)and Didang decoction(2.8 g/kg),calculated by crude drug,intragastrically administrated once a day,for 10 d. 10% drug-containing serum culture medium was prepared after 2 h of last administration. After 10% drug-containing serum culture medium intervening U251 cells for 1 week,Transwell method was conducted to detect the cell invasion rate, Western blot was adopted to detect the metal matrix protease 2 (MMP-2), MMP-9, phosphorylated JAK2 (p-JAK2),phosphorylated STAT3(p-STAT3)protein expression;and real-time fluorescence quantitative polymerase chain reaction method was used to detect MMP-2,MMP-9 mRNA expression. RESULTS:Compared with blank serum,Xuefu Zhuyu decoction drug-containing serum can reduce cell invasion rate (P<0.05),decrease the MMP-2,MMP-9 mRNA and its protein expression, and p-JAK2,p-STAT3 protein expression in cells (P<0.05 or P<0.01),while there was no significant difference in above-men-tioned indexes in Taohong Siwu decoction drug-containing serum group and Didang drug-containing serum group(P>0.05). CON-CLUSIONS:In the 3 kinds of blood-activating and stasis-eliminating TCM compound formulas,Xuefu Zhuyu decoction shows sig-nificant invasive effect on inhibiting U251 cells;the mechanism may be related to inhibiting the activation of JAK2/STAT3 signal pathway and decreasing MMP-2,MMP-9 gene and protein expressions.

Objective: To evaluate the efficacy of granulocyte(-macrophage) colony stimulating factor[G(M)-CSF] inthe treatment of concomitant chemoradiotherapy-induced oral mucositis in locally advanced head and neck cancer patients.Metheds: Fifteen patients with locally advanced head and neck cancer was received concomitant chemoradiotherapy, whilewhite blood cell count were less than 1. 5?10~9/L with grade Ⅲ/Ⅳ oral mucositis, they were subcutaneously given G(M)-CSF at dose of 100-300?g daily for 3～10 days. Results: After administration of G(M)-CSF, all of the patients had anaugmantation of white blood cell count more than 5. 0?10~9/L. Complete healing of oral mucositis occurred in 1 patient(CR), partial in 8 patients(PR), whereas 6 patients had no change and none was progressive, the objective response rate(CR+PR) was 60%. Condusions: G(M)-CSF is proved effective for oral mucositis caused by concomitant chemoradio-therapy in locally advanced head and neck cancer patients.

Objective To investigate the effects of GGNBP2 on proliferation,migration and invasion of human gli-oma U251 cells and the potential mechanism. Methods U251 glioma cells were transfected with lentiviral vector carrying GGNBP2 to establish a stable overexperssion of GGNBP2 in U251 cell line. After verification of the efficiency of transfec-tion by real-time PCR, Western Blot, PCR and CCK-8 were applied to detect the proliferation of U251 cells. The Tran-swell chamber assay was applied to measure the migration and invasion of human U251 glioma cells. Western blot was applied to measure protein levels of AKT, p-AKT, PCNA and MMP9. Result The stable U251 glioma cell line overex-pressing GGNBP2 was successfully established. Compared with the control group, overexpression of GGNBP2 significant-ly inhibited the proliferation(P<0.05),invasion(57±6 vs. 203±6,205±7,F=512.4,P < 0.05)and migration (74±7 vs. 254±14,248±13,F=242.5,P<0.05) of U251 cells. The protein expression levels of p-AKT (F=45.4, P<0.05), PCNA (F=348.5, P<0.05) and MMP-9 (F=88.7, P<0.05) in GGNBP2 group were markedly decreased compared with the control group. Conclusion GGNBP2 may suppress the proliferation, invasion and migration of glioma though down-regulation of p-AKT, which in turn inhibits PCNA and MMP-9 expression.

PurposeTo explore the value of transesophageal echocardiography (TEE) monitoring mini-incision transthoracic occlusion of ventricular septal defect (VSD) with asymmetric ventricular defects occlude in preoperative selection of patients, intraoperative guidance monitoring and postoperative evaluation.Materials and MethodsForty-five cases of VSD undertook mini-incision transthoracic occlusion with asymmetric ventricular defects occlude were enrolled, their clinical data was analyzed retrospectively, preoperative transthoracic echocardiography (TTE) was applied for choosing appropriate cases. During surgery, TEE was employed for evaluating the VSD and in which perimembranous VSD was found in 21 cases, intracristal VSD in 15 cases and subpulmonic VSD in 9 cases, suitable eccentric type occluders were chosen, guide occluder was placed, and the occlusion effect was evaluated right after operation.ResultsThe procedures were completed successfully in 42 cases, with a successful rate of 93.3%, of which 21 cases had perimembranous VSD, 15 cases had intracristal VSD, and 6 cases had subpulmonic VSD. The diameter of the VSD ranged from 3 to 7 mm, averaging (4.5±0.7) mm, the diameter of occluders ranged from 4 to 8 mm, averaging (5.7±1.2) mm, there was a good positive correlation between size of VSD and occlude (r=0.87,P<0.05). All patients received follow-ups from 3 months to 24 months after operation, all the occluders located normally, with no more than mildly residual shunt, valve regurgitation or severe arrhythmia discovered.ConclusionMini-incision transthoracic occlusion of ventricular septal defect (VSD) with asymmetric ventricular defects occlude has high success rates, minimal injury, and lower complication rate. TEE can play a vital role by improving the success rate and safety of surgery.

OBJECTIVE:To observe the clinical efficacy of acupoint application of antiemetic cream in the treatment of che-motherapy-induced nausea and vomiting. METHODS:90 cases of non-small cell lung cancer(NSCLC)(stage Ⅱ to Ⅲ)treated by chemotherapy(taxol+cisplatin)were randomly divided into antiemetic cream group,Weifuan group and control group,with 30 cas-es in each groupby drawing lots. Control group was given intravenous injection of ondansetron hydrochloride 8 mg 30 min before chemotherapy;antiemetic cream group was additionally given acupoint application of antiemetic cream 30 min before medication on first-forth day on the basis of control group;Weifuan group was additionally given acupoint injection of metoclopramide(brand name:Weifuan) 30 min before medication on first-forth day on the basis of control group. The clinical efficacy of 3 groups were observed during and 3 days after chemotherapy. RESULTS:After chemotherapy,the total control rates of antiemetic cream group (93.33%)and Weifuan group(90.00%)were apparently higher than the control group(66.67%),with statistical significance(P<0.01 or P<0.05);The total effective rates of TCM syndrome in antiemetic cream group (90.00%) and Weifuan group(83.33%) were apparently higher than in control group(60.00%),with statistical significance(P<0.01 or P<0.05). Therapeutic efficacy of antiemetic cream group was similar to Weifuan group,without any statistical significance(P>0.05). However,8 patients had obvi-ously pain at the injection site in Weifuan group,but tolerated to the drugs basically. CONCLUSIONS:The acupoint application of antiemetic cream combined with intravenous injection of ondansetron is effective and easy to operate in the treatment of nausea and vomiting induced by chemotherapy for stage Ⅱ to Ⅲ of NSCLC without pain,scar and sequela,and easy to be accepted by patients.

Objective To investigate the clinical efficacy of acupoint transdermal administered aniemetic herbal plaster combined with intraveous ondansetron preventing chemotheray -induced vomiting .Methods 98 cases of malignant tumor chemotherapy patients were randomly divided into the treatment group of 49 patients and a control group of 49 patients.The treatment group were acupoint transdermal administered animetic herbal plaster combined with intravenous ondansetron while the control group were intravenously administered ondansetron .The clinical effica-cy of preventing chemotheray-induced vomiting was observed .Results The total effective control rate of the treatment group was 93.9% compared with 79.6% of the control group,the efficacy of the treatment group was significantly greater than that in the control group ( P<0.05 ) .Conclusion The antiemetic herbal plaster exhibited significant effect on preventing chemotherapy-induced vomiting after acupoint transdermal application combined with intravenous ondansetron .

Objective To use clustering analysis to help physicians detect abnormal parameters in radiotherapy treatment plans and improve the efficiency of plan verification. Methods From 2010 to 2015, 835 breast cancer treatment plans for using 4?field hybrid intensity?modulated radiotherapy from MOSAIQ were collectted. Fractional dose, beam angle, and monitor unit were used as featured parameters of a treatment plan to generate a dataset. The K?means clustering algorithm based on principal component analysis was used to perform a clustering analysis of the dataset and divide the dataset into different clusters. The outliers of clusters were automatically detected based on the distance threshold. The outlier?contained treatment plans were manually verified by physicians to determine the accuracy of clustering analysis in detection of abnormal plans. Results In the clustering analysis, the sample space composed by parameters of treatment plans for breast cancer was divided into 4 clusters, 3 of which had outliers detected. In the targeted treatment plans, 3 plans became outliers because of special target volume and the other 4 plans needed improvement. Conclusions Clustering analysis is effective to help physicians to independently verify treatment plans.

Objective To investigate expression and significance of matrix metalloproteinase-2(MMP-2),MMP-9 and tissue inhibitor of metalloproteinase-1(TIMP-1) in rats with glomerular sclerosis made by doxorubicin.Methods Forty Wistar male rats(8-week-old) were randomly assigned into 2 groups:sham operated and model groups.Rats in model group were nephrectomized after anesthesia and injected with adriamycin(5 mg/kg) after 1 week.Rats in sham operated group was subjected to sham operation and injected with normal saline after 1 week through the tail vein.All rats were killed in the 12th week.Immuno-histochemistry was performed on renal tissue to detect Collagen Ⅳ(Col-Ⅳ),fibronectin(FN),MMP-2,-9 and TIMP-1.Results Immunohistochemistry staining indicated that expressions of MMP-2,-9 in model group decreased significantly compared to sham operated group(Pa