Radiofrequency thermocoagulation technique,as a maturity procedure,has been used routinely for trigeminal neuralgia.Radiofrequency thermocoagulation has high rates of pain relief,a long duration of pain relief,and few serious perioperative complications.This technique very suits for old patients or patients with cardiovascular diseases.The common complications include numbness,absence of corneal reflex,and master weakness.Keratitis,dysesthesia and dolorosa greatly affect patients’ quality of life.Radiofrequency thermocoagulation is an effective and promising method in the treatment of trigeminal neuralgia.Practitioner should pay attention to pain relief and reducing complications and this will help to improve their quality of life.

Objective To investigate changes in serum levels of Th22 cell ? related cytokines and complements in patients with drug eruption before and after treatment, and to explore their possible roles in the occurrence and development of drug eruption. Methods This study included 35 patients with drug eruption, and 35 sex?and age?matched healthy controls. Five milliliters of peripheral blood samples were collected from the controls and patients before and after treatment. Enzyme?linked immunosorbent assay(ELISA)was performed to measure serum levels of interleukin 22(IL?22)and IL?13, and the cytometric bead array(CBA)system was used to determine serum levels of tumor necrosis factor?α(TNF?α) and complement components C3a, C4a and C5a. Results Before treatment, the patients with drug eruption showed significantly higher serum levels of IL?22(40.85 ± 14.56 vs. 29.09 ± 8.66 ng/L, t=5.549, P<0.05), IL?13(869.94 ± 463.39 vs. 372.92 ± 151.75 ng/L, t=6.071, P<0.05), TNF?α(1.03 ± 0.64 vs. 0.44 ± 0.31 ng/L, t=4.321, P<0.05), complement C3a(55.21 ± 32.98 vs. 42.44 ± 14.26 ng/L, t=2.832, P<0.05), C4a(285.11 ± 123.91 vs. 237.00 ± 63.57 ng/L, t=2.257, P<0.05), and C5a(279.68 ± 127.72 vs. 215.98 ± 65.38 ng/L, t=2.495, P<0.05)compared with the controls. After treatment, the serum levels of IL?22, IL?13, TNF?α, complement C3a, C4a and C5a in patients decreased to(32.72 ± 11.77)ng/L,(456.21 ± 123.22)ng/L,(0.64 ± 0.39)ng/L,(45.47 ± 21.11)ng/L,(241.86 ± 84.12)ng/L and(239.61 ± 103.51)ng/L respectively, with a significant difference between the pretreatment and posttreatment values of these proteins(t = 4.443, 5.197, 3.572, 3.213, 2.728 and 4.772, respectively, all P ≤ 0.01). Additionally, the serum levels of IL?22 and IL?13 were still significantly higher in the patients than in the controls(both P < 0.05), while there were no significant differences in the serum levels of TNF?α, complement C3a, C4a or C5a between the patients and controls after treatment(all P > 0.05). Correlation analysis showed positive correlations between complement C3a and C4a serum levels(r = 0.660, P < 0.05), between C3a and C5a serum levels(r = 0.404, P < 0.05), between C4a and C5a serum levels(r = 0.501, P < 0.05), and between IL ? 22 and TNF ? α serum levels(r = 0.573, P = 0.005), but negative correlations between IL ? 22 and complement C3a serum levels(r = -0.490, P = 0.005), in patients before treatment. Conclusion The activation of Th22 cell?related cytokines and complements may play important roles in the occurrence and development of drug eruption, and IL?22 may participate in the regulation of complements.

With the development of cell separation technique, hepatocyte transplantation becomes a hot topic; however, the application is limited by donor deficiency and immunological rejection. Microencapsulated hepatocytes contribute to the promotion and application for liver cell transplantation, for which provide a large amount of high activity and good function of liver cells, in this paper, liver cell microencapsulation technology and its progress in applications were reviewed, providing prospective way for large-scale and high-active culture in vitro and long-term cryopreservation.

OBJECTIVE: To analyze the research literatures related to bioartificial liver, and to make a conclusion concerning the development of bio-artificial liver.DATA SOURCES: Using bioartificial liver, liver cell, hepatocyte culture and bioreactor as search terms, searching Ovid, Springer Link database, and China National Knowledge Infrastructure, Vip Information database and Wanfang Date (1990.09-2008.09). Literatures search was limited to English and Chinese languages.DATA SELECTION: Researches regarding liver cells of bioartificial liver, reactors and auxiliary equipment was included, and the studies about immune and animal infection studies of bioartificial liver were excluded.MAIN OUTCOME MEASURES: ①The source, quantity and culturing of bio-artificial liver hepatocytes. ②Bioreactor type, nature and type of films. ③Composition of oxygen and temperature control devices of bioartificial liver.RESULTS: Totally 3898 documents seized initially in the searching by computer, according to inclusion and exclusion criteria, 29 were analyzed. Bioartificial liver was a hybrid device in which can culture hepatocytes in vitro, when the patient's blood flows through the device, material exchange with the cultured hepatocytes through semi-permeable membrane or direct contacting can take place, which can perform the same roles of detoxification, synthesis, biological transformation and other functions as real liver cells, so as to achieve the purpose of support and treatment. Bioartificial liver can also be involved in metabolism of the three major nutritive substances, as well as secretion of hepatocyte growth promo ting substances. So it is an effective alternative to the real liver as the function of detoxification and synthesis, and can fills the essential gap between the transplantation and acute liver failure.CONCLUSION: Although the bioartificial liver research has made significant progress, it still faces the problems such as limited liver cells sources, long-term maintenance of liver cell activity and function, and further optimization of the reactor design.

Radiofrequency thermocoagulation (RFT) of the gasserian ganglion is a routine and effective technique for the treatment of classical trigeminal neuralgia (CTN). In this study we compared its efficacy in patients with CTN and atypically symptomatic or mixed trigeminal neuralgia (MTN). Fifty-seven patients were treated with RFT for trigeminal neuralgia from June 2006 to February 2009. Thirty patients had CTN, and 27 had MTN. Outcomes were measured by using the visual analog pain scale (VAS) and patients' reports of quality of life (QOL), medication usage, and complications over a follow-up period of up to 3 years. Our results showed that the patients with MTN were younger, tended to have bilaterial involvement of the first division, and were unresponsive to treatment. All surgeries were completed smoothly. About 86.7% CTN patients and 48.1% MTN patients responded immediately to RFT. The VAS scores were significantly higher in the CTN group than in MTN group (P<0.05). Kaplan-Meier curves showed that 1-year, 2-year, and 3-year pain relief rates were 76.7%, 73.3%, and 73.3% in the CTN group and 46.6%, 41.4%, and 41.4% in the MTN group, respectively. The rates of pain relief for both groups leveled off at 2 years. Complications included numbness, dysesthesia, and anesthesia dolorosa. RFT did not cause any deaths and complications were low. The treatment was very effective for CTN and, to some degrees, effective for MTN. If numbness, dysesthesia, and anesthesia dolorosa are limited to the trigger area, QOL will be greatly improved.

BACKGROUND:Exogenous neurotrophic factors or chemical induction can induce rat bone marrow mesenchymal stem cells to differentiate into neuron-like cells. However, exogenous inductors exert a short inducible action, and their chemical substances inevitably have a negative impact on cellviability to limit the application prospects of bone marrow mesenchymal stem cells to a certain extent.
OBJECTIVE:To investigate the effect of glial cellline-derived neurotrophic factor, green fluorescent protein gene transfection by adenovirus vector on biological characteristics of rat bone marrow mesenchymal stem cells, to observe the expression of glial cellline-derived neurotrophic factor and green fluorescent protein and the role of nutrition on bone marrow mesenchymal stem cells, and to explore the ability to differentiate into neuron-like cells induced by glial cellline-derived neurotrophic factor.
METHODS:The bone marrow mesenchymal stem cells at passage 3 were transfected by recombinant adenovirus (Multiplicity of infection=10, 50, 80, 100, 150, 200). The experiment had two groups according to target genes:bone marrow mesenchymal stem cells were transfected by Ad-GDNF-GFP in transfection group, and bone marrow mesenchymal stem cells were not transfected in control group. The expression of green fluorescent protein was detected by inverted fluorescence microscope. Transfection efficiency was calculated by flow cytometry. cells viability and the morphological changes of cells were compared respectively by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and inverted fluorescence microscope between the two groups. On days 5 and 10 after transfection, the expression of glial cel-derived neurotrophic factor mRNA was detected by PCR. On day 5, the expression of neuron-specific enolase was determined by immunofluorescence examination. On day 10, the expression of microtubule-associated protein 2 was identified.
RESULTS AND CONCLUSION:By the end of 12 hours after transfection, the green fluorescent protein expressed in cells, and the fluorescence intensity gradual y increased with time. When the multiplicity of infection was 100, the fluorescence intensity was strong and stable, and the transfection rate was nealy 90%on day 3 after transfection. cellviability in the transfection group was strengthened after transfection. On day 5 after transfection, bone marrow mesenchymal stem cells expressed neuron-specific enolase, and neuron-like protrusions gradual y extended. On day 10 after transfection, bone marrow mesenchymal stem cells expressed microtubule-associated protein 2 and glial cellline-derived neurotrophic factor mRNA, and exhibited neuron-like morphology and interconnected synpases. The recombinant adenovirus, Ad-GDNF-GFP, can highly transfect bone marrow mesenchymal stem cells when the multiplicity of infection is 100, and glial cellline-derived neurotrophic factor can promote the proliferation of bone marrow mesenchymal stem cells and induce bone marrow mesenchymal stem cells to differentiate into neuron-like cells.

Topological description and matching are committed steps for three-dimensional reconstruction of vessel tree from two angiograms. Binary tree is proposed to describe the two-dimensional vessel tree. "Node Weight" and "Similar Node" are defined in order to get better description. Vessel segments in two images are matched by the preorder traversal of the binary trees, and the method is proved fast and accurate.
Algorithms ; Angiography ; methods ; Computer Simulation ; Humans ; Image Processing, Computer-Assisted ; methods ; Imaging, Three-Dimensional ; methods ; Models, Biological ; Pattern Recognition, Automated ; methods ; Radiographic Image Enhancement ; methods

This paper presents a novel matching method of vessels in 3D reconstruction of heart vessel. The directed binary tree was used to describe the topological structure of heart vessel tree's skeleton. Based on topological property and epipolar property, the branch-points and end-points of each branch level could be automatically matched along the direction of blood stream. Thereupon it is easy to couple the corresponding vessels segments of two angiograms projected in different directions. The 3D heart vessel tree was successfully reconstructed from clinic coronary angiograms, which validates the presented method.
Algorithms ; Computer Simulation ; Coronary Angiography ; methods ; Coronary Disease ; diagnosis ; diagnostic imaging ; Coronary Vessels ; pathology ; Humans ; Image Processing, Computer-Assisted ; Imaging, Three-Dimensional ; methods ; Pattern Recognition, Automated ; methods

0bjective To synthesis evidence of self-efficacy-based interventions to improve self-management and health behaviour change in patients with diabetes. Methods PubMed, Cochrane, MEDLINE, CINAHL, EBSCO and Web of Science were searched from 1977 to August 2018. The primary outcomes were self-efficacy and self-care ability. Pooled effect sizes of standardised mean difference ( SMD ) were calculated if outcome measurements and the units were different, and if outcome measurements and the units were the same, such as measuring blood glucose by HbA1c, weighted mean difference ( WMD ) were used to calculate pooled effect sizes. Results Nine eligible randomised control trials (RCTs) including 1578 participants were identified. The results showed that interventions based on self-efficacy significantly improved patients′self-efficacy ( SMD=0.69, 95% CI :0.58 to 0.80, P＜0.05) and self-management ( SMD=0.93,95% CI : 0.74 to 1.12, P＜0.05), helped them control blood glucose ( WMD=-0.69, 95% CI :-0.85 to-0.52, P＜0.05), reduced hospitalisation and emergency times, and improved their quality of life ( SMD=0.52,95% CI : 0.32 to 0.72, P＜0.05). Conclusions Even though the results showed significant improvement in self-efficacy and self-management after interventions, the conclusion needs to be generalised with caution because of the quality of RCTs and high heterogeneity. Future trials could consider RCTs with high quality, appropriate sample size, specific component of diabetes management, and reliable and valid scales or objective measures as outcomes.

Radiofrequency thermocoagulation(RFT)of the gasserian ganglion is a routine and effective technique for the treatment of classical trigeminal neuralgia(CTN).In this study we compared its efficacy in patients with CTN and atypically symptomatic or mixed trigeminal neuralgia(MTN).Fifty-seven patients were treated with RFT for trigeminal neuralgia from June 2006 to February 2009.Thirty patients had CTN,and 27 had MTN.Outcomes were measured by using the visual analog pain scale(VAS)and patients' reports of quality of life(QOL),medication usage,and complications over a follow-up period of up to 3 years.Our results showed that the patients with MTN were younger,tended to have bilaterial involvement of the first division,and were unresponsive to treatment.All surgeries were completed smoothly.About 86.7% CTN patients and 48.1% MTN patients responded immediately to RFT.The VAS scores were significantly higher in the CTN group than in MTN group(P<0.05).Kaplan-Meier curves showed that 1-year,2-year,and 3-year pain relief rates were 76.7%,73.3%,and 73.3% in the CTN group and 46.6%,41.4%,and 41.4% in the MTN group,respectively.The rates of pain relief for both groups leveled off at 2 years.Complications included numbness,dysesthesia,and anesthesia dolorosa.RFT did not cause any deaths and complications were low.The treatment was very effective for CTN and,to some degrees,effective for MTN.If numbness,dysesthesia,and anesthesia dolorosa are limited to the trigger area,QOL will be greatly improved.