Objective To study the technology of multi-parameter monitoring system based on ZigBee wireless network.Methods A asynchronous serial interface of IC CC2430 was used to receive the data of multi-parameter patient monitor,and then the ZigBee channels of IC CC2430 was sent to transmit the data to the central monitoring control system.Results The data of eight multi-parameter patient monitors was successfully transmitted to the central control system,and was not interfered by wireless transmission circuits.Conclusion ZigBee wireless network technology can be successfully applied to a wireless network of multi-parameter patient monitor control system.

Objective: To investigate the effects of gene silencing and overexpression of RACK 1 (receptor for activated C kinase 1) on the proliferation of large-cell lung cancer H460 cells and lung adenocarcinoma A549 cells, and to explore the possible mechanism. Methods: The RACK1 siRNA (small interfering RNA) targeting RACK 1 gene and recombinant vector pCMV-sport6-RACK1 were transfected into both of H460 cells and A549 cells, respectively. MTT method and colony formation assay were used to detect the effect of RACK 1 gene expression on the proliferation of lung cancer cells. Flow cytometry was used to examine the change of cell cycle. The association and interaction of RACK 1 gene expression with the proliferation of lung cancer cells were analyzed by yeast two-hybrid system, co-immunoprecipitation, laser scanning confocal microscopy and co-immunoprecipitation of phosphoproteins. Results: The expression levels of RACK1 protein in the H460 cells and A549 cells were both decreased after transfection with RACK1 siRNA, and the abilities of proliferation and colony-formation were also weakened. The proportion of lung cancer cells arrested at phase S was significantly declined (P <0.01). Meanwhile, the expression level of RACK1 protein was increased after transfection with pCMV-sport6-RACK1, and the abilities of proliferation and colony-formation of lung cancer cells were both strengthened with a prolonged doubling time. The proportion of lung cancer cells arrested at phase S was significantly increased (P <0.01). The results of yeast two-hybrid system and co-immunoprecipitation revealed that RACK1 could directly interact with MCM7 (minichromosome maintenance protein 7). The phosphorylation of MCM7 protein was strengthened through binding to RACK1 which translocated into the cell nucleus. Conclusion: RACK1 promotes the proliferation of lung cancer cells through activating the phosphorylation of MCM7 binding to RACK1. Copyright© 2012 by TUMOR.

Rhinitis,sinusitis,nasal polyps and bronchial asthma are common respiratory diseases,and they have some similarities in etiology,pathogenesis,histopathology and pathophysiology.Many patients suffer from these diseases in succession,or at the same time.Many domestic and international clinical and fundamental studies have aroused widespread concern about the relevance of these diseases,with the correlations between nasal polyps-sinusitis and asthma that attribute to much attention.However,the relevance of extent on the study of these diseases,as well as diagnosis,treatment,and concept is not very clear yet.The main target of this article is to discuss the above issues and remind our clinicians to pay more attention to understand the comprehensive relationships of rhinitis,sinusitis,nasal polyps and bronchial asthma,and provide references for the strategy of rational and effective treatment options.

OBJECTIVE: A im To investigate the role of qercetin(Que) -induced autophagy in the death of hepatocellular carcinoma cell line SMMC-7721 cells. METHODS: After treatment with different concentration of Que, the growth inhibition of the SMMC-7721 cells were assessed by MTT colorimetric assay. The fluorescent staining was applied to identify the autophagy after Que treatment. Lactate dehydrogenase (LDH) leakage and Western blot analysis were used to study the autophagic mechanisms involved in death of SMMC-7721 cells. RESULTS: The proliferation of SMMC-7721 cells were significantly inhibited in a dose and time-dependent manner after Que treatment. Autophagy was also induced in MCF-7 cells as detected by MDC staining and Fluorescent staining in the early phase. The autophagy specific inhibitor 3-MA or chloroquine potentiated Que's cytotoxicitiy in SMMC-7721 cells when administered 1h before Que; The expression of cathepsin B increased after Que treatment. CONCLUSION: Que can significantly inhibit the growth of the SMMC-7721 cells by inducing the autophagy, which is a protection mechanism that can reduce the cytotoxicity induced by Que in SMMC-7721 cells. The activation of Cathepsin B is considerable in autophagy process.

Objective To investigate the clinical effects of retroperitoneal laparoscopic surgery in the management of diseases of adrenal glands, kidneys and ureters. Methods By using a closed puncture into retroperitoneal space to establish a surgical access ,87 patients with diseases of adrenal glands, renal cysts, ureteral calculi and ureteral deformities were operated on by means of retroperitoneal laparoscopic surgery. Results The surgery was successfully accomplished in 83 patients with an excellent therapeutic effect, whereas a conversion to open surgery was required in 4 patients. There were no blood transfusions or serious complications in the study. Conclusions Retroperitoneal laparoscopic operations of adrenalectomy, cyst unroofing, ureterolithotomy, ureterolysis and ureteroplasty has the advantages of minimal invasion, less blood loss and fewer complications, being an effective and practical procedure .

Radiotherapy (RT) is the primary treatment for nasopharyngeal carcinoma (NPC). In order to achieve tumor control, nearby normal brain tissues, especially the temporal lobes, often receive unnecessary radiation. Patients with NPC treated by RT may occur cognitive impairments, which significantly compromises the quality of life. The symptoms of cognitive dysfunction induced by RT in NPC patients can exhibit at the early or later stage after RT, which may be related to temporal lobe injury or brain damage induced by radiation. However, the relationship between the cognitive declines induced by RT and the radiation dose or volume of the temporal lobe (or the dosimetry to treat NPC) has not yet been definitively established, and few reports have focused on cognitive impairment following intensity modulated RT. Therefore, this paper will review the progress in radiation-induced cognitive decline of NPC patients in order to provide the basis for preventing side effects of RT and improving the quality of life after RT.

Objective To evaluate the changes of soft tissue and hard tissue in the correction of Class II division 1 malocclusion by functional appliance, and to investigate the correlation between these changes and the mechanism underlying the soft tissue profile changes. Methods A total of 32 cases of developing class II division 1 malocclusion were selected. They were in the spurt or pre-spurt phase of growth and development and treated with functional appliance, the molar relationship was corrected to either Class I or overcorrected Class I occlusal relationship. Soft tissue and hard tissue variables on the cephalograms were selected and analyzed. Firstly, paired t-tests were performed to compare the changes between before and after-treatment. Secondly, those variables that had statistically significant differences were selected and analyzed with the Pearson coefficient of correlation (r) between soft tissue and hard tissue changes. Results All variables had statistically significant differences between before and after treatment except for soft tissue facial angle and basic upper lip thickness, mandible plane angle and position of basic upper bone; Correlations between soft tissue and hard tissue changes were as follows: height of lower lip to Me' and S-Go (r=0.54); soft tissue chin thick and N-ANS (r=0.55); height of upper lip and ii/OLp (r=0.52); inferior sulcus to H-line and ii/OLp (r=0.60), pg/OLp, saggital relationship between upper-and lower-jaw (ss/OLp-pg/OLp) (r=0.47). Conclusion The changes of soft tissues profile results from the change of lower incisors' position, mandible' moving forward and its subsequent changes of facial heights and saggital relationship between upper-and lower-jaws.

Objective To discuss oral nursing frequency of patients undergoing orally mechanical ventilation in order to ensure the oral cleanness of patients with the least oral nursing frequency and prevent the occurrence of ventilator associated pneumonia (VAP). Methods 36 patients undergoing orally me-chanical ventilation were randomly divided into groupA, B, C and D with 9 cases in each group, which all adopted 0.5% of pevidone iodine solution for oral nursing, time intervals of oral nursing were 4 hours, 6 hours, 8 hours and 12 hours. After the oral care and oral care before the next oropharyngeal samples for se-mi-quantitative bacterial colony counts, bacterial strain identification were obtained. The incidence rate of VAP was also compared and the results underwent χ2 test. Results Significant difference was seen in bacterial colony counts, especially during the time interval of 6 hours and 12 hours. No significant differ-ence was seen in incidence of VAP between the 4 groups. Conclusions The desirable frequency of oral nursing was every 6 hours on the premise of prevention of VAP.

Objective To observe the efficacy of urinary kallidinogenase plus batroxobin in the treatment of acute cerebral infarction.Methods 105 patients with acute cerebral infarction were selected and divided into 3 groups:urinary kallidinogenase group (35 cases),combined treatment group (39 cases),batroxobin group (31 cases).The NIHSS score,Barthel Index,MRS score were evaluated before treatment and 10 days after treatment,and the clinical efficacy was compared.Results The NIHSS score significantly decreased after treatment in the three groups (all P ＜ 0.05).The effective rate of combined treatment group was better than that of the single treatment group (urinary kallidinogenase group or batroxobin group) [79.5 ％ (31/39),71.4 ％ (25/35),35.4％ (11/31) (x2 =15.801,P =0.001)].The Barthel Index and MRS score of combined treatmentgroup were better than those of the batroxobin group (P =0.003),not better than the urinary kallidinogenase group (P =0.766).Conclusion Urinary kallidinogenase plus batroxobin is effective in the treatment of acute cerebral infarction.