Objective To develop ECG Holter system with SD card as storage medium. Methods Data that used MSP430F449 SCM to acquire 3-channel ECG signal to record SD card through serial peripheral interface were reviewed and analyzed on computer. Results Portable ECG Holter System based on SD card is realized. The using of SD card can enhance storage performance. Conclusion Low-cost, and high-performance solution program is observed.

Surgical resection and liver transplantation are still the preferred treatments for patients with hepatocellular carcinoma (HCC).For the patients with advanced HCC which are not suitable for surgical resection,traditional chemotherapy can not improve the prognosis.Molecular targeted therapy is a new method and tendency in the treatment of HCC.Multiple targets inhibitors,vascular endothelial growth factor inhibitors and monoclonal antibodies for HCC are widely researched and applied.

Lipoma preferred partner (LPP) has been identified as a protein which is highly selective for smooth muscle progenitor cells (SMPCs) and regulates differentiation and migration of SMPCs, but mechanisms of LPP expression are not elucidated clearly. The aim of the present study was to discuss the mechanisms by which LPP expression is regulated in the differentiation and migration of SMPCs induced by TGF-β1. It was found that TGF-β1 could significantly increase the expression of LPP, smooth muscle α-actin, smooth muscle myosin heavy chain (SM-MHC), and smoothelin in SMPCs. Moreover, inactivation of Rho kinase (ROK) with ROK inhibitors significantly inhibited LPP mRNA expression in TGF-β1-treated SMPCs and mouse aortic smooth muscle cells (MAoSMCs). At the same time, LPP silencing with short interfering RNA significantly decreased SMPCs migration. In conclusion, LPP appears to be a ROK-dependant SMPCs differentiation marker that plays a role in regulating SMPCs migration.

BACKGROUND:Many studies have shown that different nanostructures produce different influences on cellbioactivity, but the nanonetwork structure is not reported yet. OBJECTIVE:To study the influence of the nanonetwork topography on the bioactivity of bone marrow mesenchymal stem cels. METHODS:The nanonetwork topography was fabricated on biomedical titanium surface by alkali-heat treatment, and pure titanium served as control group. Bone marrow mesenchymal stem cels were co-cultured with the above two types of samples. cellmorphology and cytoskeleton were observed using scanning electron microscope and immunofluorescence method. The celladhesion, proliferation and osteogenic differentiation were detected by measurement of absorbance values at different culture time. RESULTS AND CONCLUSION: The nanonetwork topography had significant advantage on the number of adherent cels at 30, 60 and 120 minutes of co-culture. The cellproliferation was significantly accelerated by the nanonetwork topography at days 1, 3, 5 of co-culture, and the absorbance values in the nanonetwork group were significantly higher than those in the pure titanium group (P < 0.05). The alkaline phosphatase activity in the nanonetwork group was also significantly higher than that in the pure titanium group at 14 days of osteogenic induction (P < 0.05). The cellshape and cytoskeleton on the nanonetwork surface were better than those on the titanium surface. These findings indicate that the nanonetwork topography has better effects on cellbioactivity compared with pure titanium.

BACKGROUND:Autologous cartilage has a poor self-repair effect due to low chondrocyte density, low metabolism rate and no blood supply.
OBJECTIVE:To summarize the recent study about tissue engineering techniques and surgical treatment for cartilage injury.
METHODS:A computer-based online retrieval of PubMed database was performed by the first author for articles published between January 1992 and December 2013. The key words are“articular cartilage, injury, tissue engineering, repair”in English. According to the inclusion and exclusion criteria, 61 literatures were included into the final analysis.
RESULTS and CONCLUSION:The current clinical treatment of articular cartilage injury includes joint debridement, mosaicplasty, perichondrium transplantation and autologous chondrocyte implantation. However, their long-term result is unsatisfactory. One reason for limited clinical success is that new cartilage can be formed at the site of a defect, and the repaired tissue canot compare with the autologous cartilage in mechanical property. Tissue engineering technique is stil a hot topic in recent years, because it can potential y induce autologous cartilage formation. Through endogenous or ectogeneous seed cells and inducting factor and nutrient factors, tissue engineering technique can be applied to induce the self-repair of articular cartilage, thus regenerating into hyalinc cartilage with the similar even same biological property. How to simplify the treatment protocols and reduce treatment cost is the key to promote cartilage repair.

Objective: To study the role of adrenomedullin(ADM) in normal early pregnancy. Methods: Plasma concentrations of ADM were measured in 30 normal early pregnancy and 10 non-pregnant women by radioimmunoassay. The expression of ADM?ADM mRNA and ADMR mRNA in villus of normal early pregnancy were determined by immunohistochemistry and in situ hybridization respectively. Results: The plasma concentration of ADM in normal early pregnancy was significantly higher than that of normal non-pregnant women (P

Objective To realize the risk factors for postoperative healthcare-associated infection (HAI)in pa-tients undergoing oral and maxillofacial malignant tumor surgery,so as to take effective intervention measures and reduce the occurrence of HAI.Methods Prospective and retrospective survey were adopted to analyze the occur-rence of HAI and related risk factors for postoperative HAI in patients undergoing oral and maxillofacial malignant tumor surgery in 2013.Results Of 432 patients,58 developed 63 times of HAI,HAI rate was 13.43%,case infec-tion rate was 14.58%.The main infection sites were lower respiratory tract (57.14%)and surgical site (38.09%). 56 pathogenic strains were isolated,the major were Pseudomonas aeruginosa (46.43%),followed by Acinetobacter baumannii and Klebsiella pneumonia .Univariate analysis revealed that tracheotomy,length of hospital stay,opera-tive time,intraoperative antimicrobial use were risk factors for HAI in patients undergoing oral and maxillofacial malignant tumor surgery(all P <0.05).Conclusion The important measures for reducing HAI in patients undergo-ing oral and maxillofacial malignant tumor surgery are shortening the duration of surgery and length of hospital stay, taking active intervention,implementing hand hygiene,and using antimicrobial agents rationally.

Objective To explore and analyze the curative effect of capecitabine in the treatment of advanced breast cancer and its influcing factors. Methods 100 cases of advanced breast cancer were selected,all patients were treated with combined or individual therapy, one period was 21-28 days, and the course of treatment was more than two cycles. Before and after treatment, the Eastern Cooperative Oncology Group (ECGO) score, receptor status, chemotherapy cycles, tumor metastasis and other factors of the data were collected and recorded. Results The short-term efficacy of the patients was: stable disease (SD) 39 cases, progressive disease (PD) 8 cases, complete remission (CR) 1 cases, partial remission (PR) 52 cases. 53.0%(53/100) for objective response rate (ORR), 92.0%(92/100) for disease control rate (DCR). All patients who received treatment from the end of the follow-up period were: 1 to 24 months, the median survival period was 6.5 months. The independent influencing factors of progress free survival (PFS) were the number of cycles of combination chemotherapy (P<0.05). During chemotherapy, the adverse reactions of patients was not much, respectively: 4 cases of hand foot syndrome, 2 cases of grade Ⅰ, 1 case of grade Ⅱ, 1 case of grade Ⅲ; 7 cases of gastrointestinal reaction, 4 cases of grade Ⅰ, 3 cases of grade Ⅱ; 3 cases of hematologic toxicity, 1 case of grade Ⅰ, 2 cases of grade Ⅱ. The lower ECGO score, ≥4 times of cycles of treatment, ER/PR+ improved the short-term efficacy(P<0.05), while the tumor metastasis and HER-2 receptor could not effect the short-term efficacy. Conclusion The short-term efficacy of capecitabine is related to ECGO score, receptor status and chemotherapy cycles, while has no relation with tumor metastasis and HER-2 receptor.

Objective]The paper summarizes the academic thoughts and clinical experience of Professor HAN Xinmin for treating Tic Disorders from view of wind-phlegm. [Methods] By learning from Professor HAN Xinmin, recording the relevant cases and analyzing typical cases, to sum up the knowledge of etiology and pathogenesis, treatment characteristics, as well as list one proved case. [Results]Professor HAN Xinmin holds that this disease origins from liver, involving lung, spleen and kidney. The key pathogenesis is the internal stir of wind and phlegm. Treatment follows the principles of dispelling pathogenic wind and eliminating phlegm, along with suppressing hyperactivity liver qi, dispersing lung qi, regulating spleen and tonifying kidney. The self-ordained Chinese herbal medicine prescription has achieved a satisfactory clinical curative effect. [Conclusion]Therapies of Professor HAN Xinmin on treating Tic Disorders have significant effect, which have the value of popularization and application.

Immunosenescence is a process characterized by alterations and progressive deterioration of the structure and function of the immune system.Manifestations of immunosenescence include damage to both innate and adaptive immunity,reduction of immune responses to antigen stimulation,quantitative and functional changes of immune cells and alterations of cytokine activities,all of which may result in attenuated responses to vaccines,enhanced chronic inflammatory reactions,an elevated risk of infections and an increased susceptibility to cancer among old individuals.In recent years,it has been increasingly recognized that oxidative stress plays a vital role in immunosenescence.This review is focused on the influences of oxidative stress on the structure,function and generation of immunecells and the major mechanisms underlying immunosenescence.