BACKGROUND:The treatment of diabetic foot has become a“bottleneck”. The transplantation of autologous bone marrow or peripheral blood endothelial progenitor cells is a new way for the treatment of diabetic foot in recent years.
OBJECTIVE:To review the effects of vascular endothelial growth factor receptor 2 and the integrin in treatment of diabetes foot by transplantation of endothelial progenitor cells.
METHODS:The first author searched PubMed database and Chinese periodical ful-text database for related articles published between January 1998 and December 2012, withdiabetic foot, endothelial progenitor cells, VEGFR-2, integrin, synergistic effectin English and Chinese, respectively. A total of 98 articles were searched, and 60 were included after excluding repetitive articles.
RESULTS AND CONCLUSION:In the diabetic foot treatment, autologous bone marrow or peripheral blood endothelial progenitor cells has around increasing attention, and gradual y become the focus of this field. Therapy with endothelial progenitor cells has gradual y developed into a new method for diabetic foot. Vascular endothelial growth factor receptor 2 and the integrin may exhibit synergistic effects in the treatment of diabetes foot. However, the mechanism remains poorly understood. Further studies are needed to wel understand their mechanism of action.

10.3969/j.issn.2095-4344.2013.23.002

Objective To investigate nasomaxlllary complex facial soft tissue changes after the treatment with maxillary protraction appliance with skeletal Class Ⅲ malocclusion with a retruded maxilla.Methods Thirty growing subjects with skeletal Class Ⅲ malocclusions with maxillary retrognathism were selected and treated by facial mask(male 15,female 15,with an average age of 10.5).They were given a maxillary protraction treatment with face mask for 6-8 months.Cephalometric measurements about nasomaxillary complex soft tissue changes were analyzed to draw the statistic conclusion.Results After maxillary protraction treatment,PraY,nasofrontal angle,As-Y,UL-Y,UL-E,S-Ns-Sn increased (P ＜ 0.01) ; M-Y increased (P ＜ 0.05) ; LL-E,PosY,nasolabial angle decreased (P ＜ 0.05).There were no significant differences in the Ns-Y and columella-tip angle.Conclusion After maxillary protraction treatment,nasomaxillary complex area becomes more marked.Both the nasomaxillary complex soft tissue and lower facial profile are dramatically improved.The combining effect of these two changes results in a more harmony profile.

Objective:To discuss the effect and mechanism of autophagy inhibitor 3-MA on arsenic trioxide inducing apoptosis of acute T-cell leukemia cell line Jurkat cells.Methods:Proliferation inhibition of Jurkat cells treated with arsenic trioxide was detected by XTT.Morphological characteristics of Jurkat cells treated with different concentrations arsenic trioxide were observed by electron mi-croscope.Microtubule-associated protein 1 light chain 3B (LC-3B) protein expression was detected by Western blot and flow cytome-try.Apoptosis rates of Jurkat cells treated with 3-MA combining arsenic trioxide were detected by flow cytometry using AnnexinV-FITC/PI double staining.Results:Arsenic trioxide inhibited the growth of Jurkat cells in a dose and time dependence.We observed different morphological characteristics of autophagy , apoptosis and necrosis accompanying more autophagosomes in Jurkat cells which were treated with arsenic trioxide 2.5,5,10 μmol/L after 24 h.LC3B mean fluorescence intensity (MFI)relative multiples were(3.1±0.2) fold,(4.6±0.31)fold,(34.2±4.5)fold with 5 μmol/L arsenic trioxide treated Jurkat cells 0,24,48 h,and the P values between each of the two groups were less than 0.05,which increased depending time consistently with the growth inhibition rates.LC-3B protein expression gradually increased treated Jurkat cells with arsenic trioxide after 24 h,48 h.The growth inhibition rate (60.6±8.3)%was significantly different treated with arsenic trioxide combining 3-methyl adenine ( 3-MA ) while it was ( 33.4 ±9.1 )% treated with arsenic trioxide alone, however, LC-3B protein expression gradually decreased.Jurkat cell apoptosis rate ( 44.96 ±3.60 )% was significantly increased treated with arsenic trioxide combining autophagy inhibitor(3-MA) while it was (2.94±0.26)% treated with arsenic trioxide alone, and this difference was statistically significant.Conclusion: 3-MA increased apoptosis rates of Jurkat cells inducing by Arsenic trioxide and it may be related with inhibition of autophagy and induction of apoptosis.

Objective To explore the effect of duraphat varnish on reducing orthodontic tooth enamel demineralization around brackets.Methods We Selected 30 patients aged 12 to 14 years old in orthodontic Departrnent of Shenyang Stomatological Hospital from Jan 2011 to Dec 2013 and carried out rectification scheme to pull out the first premolar after test.The full mouth dental were divided into four parts by the quadrant and the first premolars of different groups were coated with Tooth Mousse,Fluor Protector and saline (as control group),duraphat varnish (as experimental group) respectively.Every group included 30 teeth.Three months later,We observed the demineralization of the teeth.The enamel decalcification of all quarters were detected by DI-AGNOdent.Results The rate of enamel demineralization in the experimental group was 10.0％,that in the Tooth Mousse group was 13.3％,the 0.1％ Fluor Protector group 23.3％,the saline group 53.3％.There were significant statistical difference of the rate of enamel demineralization between the Duraphat varnish group and 0.1％ Fluor Protector group,and that between the Duraphat varnish group and the saline group (P ＜ 0.01).There was no statistical difference of that between the Duraphat varnish group and the Tooth Mousse group (P ＞0.05).There were no statistical difference of DIAGNOdent reading between the experimental group and the control groups before bonding(P ＞ 0.05).After bonding,one month later and three months later,there was no statistical difference of DIAGNOdent reading between the Duraphat varnish group and the Tooth Mousse group (P ＞ 0.05).There was significant statistical difference of that between the Duraphat varnish group and 0.1％ Fluor Protector group(P ＜ 0.01).Conclusion Duraphat varnish can reduce the tooth enamel demineralization more effectively than 0.1％ Fluor Protector and saline in orthodontic treatment,and also can be used for children who were wearing fixed orthodontic appliances.

Selective courses are different from compulsory courses in teaching objective,students' study demand,teaching content.Different teaching designs should be used according to different teaching objectives in selective courses for graduates.Targeted scientific thoughts and methodological training should be designed with respect to the fact that students will begin their experimental studies after the selective lessons.We analyzed the current status of selective course of neuroanatomy for graduates and proposed some solutions.

Objective To compare the efficacy of zillah risperidone and risperidone in the treatment of schizophrenia. Methods In our hospital from January 2010 to January 2014,selected 60 cases schizophrenic patients hospitalized as observed object,60 cases hospitalized patients with schizophrenia during as the observed object, all patients were ran-domly divided into group A (ziprasidone) and group B (risperidone), each group of 30 patients, before and after treatment efficacy PANSS score changes and two groups of patients after treatment, adverse reactions were compared between two groups. Results After 4,8 weeks, the PANSS total score,PANSS positive symptoms, PANSS negative symptoms of A group and B group were significantly lower than before treatment,the difference was statistically signifi-cant(P<0.05),PANSS scores of A group after treatment 4,8 weeks were significantly lower than in group B,the differ-ence was statistically significant (P<0.05),but after treatment 4,8 weeks,PANSS positive symptoms, PANSS negative symptoms of group A and group B had no significant significance. The total effective rate of A group was 86.7%,was higher than that in group B (83.3%),but the difference was not statistically significant between the two groups (P>0.05). After treatment for 6 weeks,the incidence of adverse reactions of A group was 20%,group B was 40%,the inci-dence of adverse reactions in group A was significantly lower than group B,the difference was statistically significant(P<0.05). Conclusion Ziprasidone and risperidone in the treatment of schizophrenia have better efficacy, but com-pared to risperidone, ziprasidone has advantages,with fewer adverse reactions.

Objective To study the effect of venlafaxine and fluoxetine in depression and improvement on cognitive function. Methods Retrospectively analyzed from January 2012 to January 2014 in our hospital for treatment of 32 cas-es of depression with venlafaxine in patients with clinical data, set up for the observation group, selected the same pe-riod of fluoxetine in 32 patients with depression in patients with clinical data, set up as the control group, HAMD score, cognitive function before and after treatment were compared between two groups. Results The total effective rate of ob-servation group after treatment was 93.75%,was significantly higher than the control group (P<0.05). The observation group and the control group of patients with HAMD scores were significantly lower than before treatment, and the HAMD score of observation group was significantly lower than that of the control group (P<0.05). The observation group group after treatment 8 weeks, number of errors, random errors were significantly lower than before treatment, and sig-nificantly less than the control group (P<0.05). Patients in the control group after 8 weeks of treatment, number of perse-verative errors connected rates had no significant difference before treatment (P>0.05). Conclusion Venlafaxine in the treatment of depression and improve the effect on cognitive function, has more advantages than fluoxetine.

Objective To investigate the effects of mannan-binding lectin(MBL) on TNF-α production induced by peptidoglycan (PGN) and its mechanism in human THP-1/CD14 monocytes.Methods The THP-1/CD14 cells were stimulated for 24 h with PGN at the indicated ratios after pretreated with human natural MBL at concentrations ranging from 1 to 20 mg/L for 2 h.The content of TNF-α and IL-6 in culture supernatants were detected by ELISA,and the levels of TNF-α and IL-6 mRNA expressions in these cells were determined by RT-PCR.FACS was used to investigate the interaction of MBL with THP-1/CD14 cells and the impact of MBL on PGN binding to THP-1/CD14 cells.Western blot was used to detect PGN-induced NF-κB translocation in THP-1/CD14 cells.Results ELISA showed that secretion of TNF-α and IL-6 from THP-1/CD14 cells could be induced by PGN ;The productions of TNF-α and IL-6 by THP-1/CD14 cells induced with PGN were profoundly inhibited by MBL at higher concentrations (10-20 mg/L) but not MBL at lower concentrations (1 mg/L).RT-PCR analysis also indicated that the mRNA expressions of TNF-α and IL-6 in THP-1/CD14 cells were decreased by MBL at higher concentration,compared to the corresponding THP-1/CD14 cells stimulated with PGN only.FACS showed that the binding of MBL to THP-1/CD14 cells was evident in a Ca2+-dependent manner.PGN could competitively inhibit the binding of MBL to THP-1/CD14 cells.MBL could competitively inhibit the binding of PGN to THP-1/CD14 cells by binding to THP-1/CD14 cells directly.Similarly,MBL at higher concentration (20 mg/L) decreased the NF-κB translocation in THP-1/CD14 cells.Conclusion MBL may inhibit TNF-α and IL-6 production induced by PGN in THP-1/CD14 cells through NF-κB signaling pathways,suggesting that MBL can play some roles in the regulation of PGN-induced inflammatory response.

At present, acellular matrix is an effective replacement material for the treatment of skin damage, but there are few systematic evaluation studies on its performance. The experimental group of this study used two decellularization methods to prepare the matrix: one was the acellular matrix which sterilized with peracetic acid first (0.2% PAA/4% ethanol solution) and then treated with hypertonic saline (group A), the other was 0.05% trypsin/EDTA decellularization after γ irradiation (group B); and the control group was soaked in PBS (Group C). Then physical properties and chemical composition of the three groups were detected. Hematoxylin eosin (HE) staining showed that the acellular effect of group B was good. The porosity of group A and B were both above 84.9%. In group A, the compressive modulus of elasticity was (9.94 ± 3.81) MPa, and the compressive modulus of elasticity was (12.59 ± 5.50) MPa in group B. There was no significant difference between group A or B and group C. The total content of collagen in acellular matrix of group A and B was significantly lower than that of group C (1. 662 ± 0.229) mg/g, but there was no significant difference in the ratio of collagen Ⅰ/Ⅲ between group B and group C. Scanning electron microscopy (SEM) and atomic force microscopy (AFM) showed that there was no significant difference in microstructure. Qualitative detection of fibronectin and elastin in each group was basically consistent with that in group C. Therefore, acellular matrix of group B had better performance as scaffold material. The experimental results show that the acellular matrix prepared by γ-ray sterilization and decellularization of 0.05% Trypsin enzyme/EDTA could be used for the construction of tissue-engineered skin. It could also provide reference for the preparation and mounting of heterogeneous dermal acellular matrix. It was also could be used for electrostatic spinning or three-dimensional printed tissue engineered skin scaffold which could provide physical and chemical parameters for it.
Acellular Dermis ; Cells, Cultured ; Extracellular Matrix ; Porosity ; Tissue Engineering ; Tissue Scaffolds