Objective:To explore the possible relationship between recurrent aphthous ulcer( RAU) and the single nucleotide polymor-phism(SNP)of IFN-γ+874A/T site and IL-2-330T/G site. Methods:138 RAU patients and the 124 health control subjects were in-cluded. IFN-γand IL-2 serum concentration were detected by ELISA. IFN-γ+874A/T site and IL-2-330T/G site of the whole blood were detected by RFLP-PCR and SSP-PCR. Results:IFN-γand IL-2 levels in serum of the patients were significantly lower than those of the controls(P<0. 05). There was significant difference in the genotype frequencies and allele frequencies of IFN-γ+874A/T site between the 2 groups(P<0. 05). The AA genotype(OR=9. 964)and the A allele (OR=3. 801) at the IFN-γ+874A/T site was with high-risk of RAU. Carry A allele in patients with risk of RAU was to carry the T allele of 3. 801 times. There was no significant differ-ence in the genotype frequencies or allele frequencies of IL-2-330T/G site between the 2 groups(P>0. 05). Conclusion: IFN-γ+874A/T site was associated with the risk of RAU. But,IL-2-330T/G site was not.

Objective To explore the value of exhaled nitric oxide evaluate the condition of children with asthma in clinical remission stage .Methods A total of 214 asthmatic children were divided into treatment group and control group .Tests of bronchial provocation and FeNO were performed at the same time .Results FeNO in treatment group was significantly lower than in control group ,while the level of PC20 FEV1 did not have obvious difference in two groups .The level of PC20 FEV1 was negatively correlated with FeNO ,regression equation was Y=35 .883-1 .074X(X= PC20 FEV1 ,Y= FeNO) .Conclusion FeNO is a reliable indicator to evaluate the control situation of non‐specific inflammation in asthmatic children .Combined with bronchial provocation test ,the diag‐nosis rate of asthma in clinical remission stage will significantly raised .

OBJECTIVETo explore the possible relationship between recurrent aphthous ulcer (RAU) and single nucleotide polymorphism (SNP) of transforming growth factor-β1 (TGF-β1)-509T/C and interleukin-10 (IL-10)-1082A/G sites.

METHODSA total of 138 RAU patients were recruited for this study. The control group consisted of 124 subjects. TGF-β1-509T/C and IL-10-1082A/G sites were detected by restriction fragment length polymorphism-polymerase chain reaction (RFLP-PCR) and sequence specific primer-polymerase chain reaction (SSP-PCR). Relative risk ratios were estimated by odds ratios (OR) and 95% confidence interval (95%CI).

RESULTSSignificant differences were found in the genotype frequencies or allele frequencies of TGF-β1-509T/C and IL-10-1082A/G sites between the RAU patients and controls (P < 0.05). CT genotype (OR = 1.231, 95% CI = 0.702-2.160), TT genotype (OR = 2.482, 95% CI = 1.250-4.927), and T allele (OR = 1.465, 95% CI = 1.036-2.074) at the TGF-β1-509 site exhibited high risks. AG genotype (OR = 1.391, 95% CI = 0.808-2.396), GG genotype (OR = 4.165, 95% CI = 1.944-8.924), and G allele (OR = 2.134, 95% CI = 1.474-3.089) at the IL-10-1082A/G site also showed high risks.

CONCLUSIONTGF-β1-509T/C and IL-10-1082A/G sites are associated with the risk of RAU. The TGF-β1 gene-509T allele and IL-10 gene-1082G allele may serve as genetic determinants for RAU.

Alleles ; Gene Frequency ; Genetic Predisposition to Disease ; Genotype ; Humans ; Interleukin-10 ; Polymorphism, Single Nucleotide ; Stomatitis, Aphthous ; Transforming Growth Factor beta1 ; Transforming Growth Factors

To study the chemical constituents of Veratrum dahuricum (Turcz.) Loes. f., a new aurone glycoside named as (Z)-7, 4'-dimethoxy-6-hydroxyl-aurone-4-O-β-glucopyranoside was isolated from the 95% ethanol extracts of the rhizomes and roots of Veratrum dahuricum (Turcz.) Loes. f. by repeated column chromatography on silica gel and recrystallization. Its structure was established by extensive spectroscopic analyses, and its cytotoxicities against HepG-2, MCF7 and A549 cell lines were measured in vitro.
Benzofurans ; isolation & purification ; Cell Line, Tumor ; Glycosides ; isolation & purification ; Humans ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; Rhizome ; chemistry ; Veratrum ; chemistry

Objective: To summarize the research status of the changes in local microenvironment of acupoints caused by acupuncture, provide theoretical guidance for the initiation mechanisms of local acupuncture effect at acupoints. Methods: Using acupuncture, acupoint as key words to search China National Knowledge Infrastructure (CNKI), Wanfang Academic Journal Full-text Database (Wanfang), Chongqing VIP Database (CQVIP), PubMed and other databases, the representative articles were selected for review. Results: Acupuncture could excite afferent nerves, activate cells, and promote the release of chemical substances like neuropeptide, hormone, cytokines, etc. in the local site of acupoints. Besides, it may cause mechanical deformation of connective tissues, and change chemical ions as well as ion channels. Conclusion: The microenvironment changes around acupoints are crucial to acupuncture effect; the concept of 'acupoints network' can be used to objectively describe the local changes around the acupoints after acupuncture.

Three myelin proteins, Nogo-A, MAG and OMgp, transduce their neurite-outgrowth inhibitory signal through a common receptor complex: NgR/ p75NTR (or TROY). Recently, LINGO-1 is identified as another essential component and regulator for the Nogo-66 receptor/p75 signaling complex. LINGO-1 is restricted to express in CNS, neuronal LINGO-1 is shown to be involved in the signal transduction from three myelin proteins, and Lingo-1 in oligodendrocyte negatively regulates the differentiation and myelination of oligodendrocyte. To investigate the potential activity of LINGO-1 in neuronal apoptosis, LINGO-1-Fc fusion protein including the extracellular LRR and IgC2 domain, was used as functional antagonist to study its protective effect on low-potassium induced apoptosis of cerebellar granule neurons (CGNs). In judgement of the apoptotic nuclei stained by Hoechst, LINGO-1-Fc pretreatment for 2 h significantly prevents apoptosis of CGNs. Although GST-LINGO-1 protein, including the LRR domain, binds to the CGN cultures in the same way with LINGO-1-Fc, it doesn't prevent the apoptosis of CGNs. These results indicate that LINGO-1-Fc fusion protein prevents low-potassium induced apoptosis of cerebellar granule neurons in certain conditions and this activity is probably IgC2 domain dependent.

Objective To identify whether the branches of cervical nerve roots joined into the accessory nerve trunk or not.Methods In 10 adult cadavers (7 males and 3 females, including 20 laterals of brachial plexus nerves), we observe source of cervical plexus branches to the accessory nerve anatomically.In 10 clinical cases of males with brachial plexus nerve injures, in the supraclavicular approach of brachial plexus exploration, the part of the supraclavicular cutaneous nerve for histological specimen were cut off;in the posterior approach, electrical stimulation of the trunk and branches of cervical plexus were performed to observed istaltrapezius muscle contraction.After accessory nerve transfer, the residual terminal accessory nerve and branch of cervical plexus were taked for histological specimens;and observed and judged of each nerve sample by acetylcholinesterase (AchE) immunohistochemical staining.Results In 10 of 20 lateral cases, cervical plexus communicating branches were derived from the fourth cervical nerve root.The intraoperative electrical stimulation of the accessory nerve trunk, 10 cases of distal trapezius muscle were significantly shrink;electrical stimulation of the cervical plexus branch, 2 cases after stimulation of the mild distal trapezius contraction, the remaining 8 cases without trapezius muscle contraction.10 cases of supraclavicular nerve staining for AchE were negative, 10 cases of accessory nerve terminal branches of AchE staining were mixed,10 cases of branch AchE cervical plexus to the accessory nerve staining were negative.Conclusion The branches of the fourth cervical nerve root constantly joins into the accessory nerve, participating in the trapezius muscle inner vation, the fibers of the branches are sensorial fibers.

Objective To explore the changes of proteomic spectra from plasma of patients with lung cancer or benign lung diseases and health controls in order to establish a primary diagnosis model of lung cancer. Methods The proteomic spectra from plasma of 108 patients with lung cancer, 40 patients with benign lung diseases and 22 healthy individuals were analysed by surface-enhanced laser desorption/ionization time of flight mass spectrometry ( SELDI-TOF-MS). The best decision tree model was established by cluster analysis and principal component analysis. Then the model was blindly validated by the protein of 21 patients with lung benign diseases and 47 patients with stage I lung cancer. Results Twenty-three significantly differentially expressed protein peaks were successfully detected (P <0.001). Blinded validation suggested that the accuracy for diagnosing lung cancer was 72. 06%, the sensitivity and specificity were 72. 34% and 71.43%, respectively, and the positive predictive value and negative predictive value were 85. 0% and 78. 95%, respectively. Conclusion SELDI-TOF-MS protein chip technology provides a new tool for the early diagnosis of lung cancer.

Objective To express the hemagglutinin of H7N9 in Pichia pastoris and analyze its immunogenicity. Methods The HA [1 -525 amino acids(aa)] of H7N9 [A/Hangzhou/1/2013(H7N9)] lacking the C-terminal transmembrane anchor-coding sequence was amplified by PCR and cloned into the expression vector pPICZαA.The plasmid pPICZ-HA7-S-was transformed into P.pastoris and the HA1-525 was detected by ELISA.Then the HA1-525 was precipitated by PEG20000.After immunization with the HA1-525 , the anti-HA7 antibody in mouse serum was detected by ELISA and hemagglutinin inhibition ( HI) test.Results The HA1-525 was expressed in P.pastoris after being induced with methanol. Western blotting confirmed that there were specific dispersion bands and the molecular weight of HA1-525 decreased to 58 × 103 after being digested by endo H.Anti-HA7 antibody was found in serum of HA1-525 immunized mice and the hemaggluti-nation-inhibition titers reached 1∶700 after the third doses.Conclusion This study shows the HA1-525 expressed in P.pastoris can induce the neutralizing antibody in mice.

Based on the constructivism learning theory, we designed a new pharmaceutics of TCM experiment teaching course which focused on process of knowledge formation, including a self-designed experiments on the basis of primary experiment, a cooperative learning platform, and an formative evaluation system. The practice has showed that this new teaching method can arouse the participants' interest and initiative, help to enhance the teaching efficiency and performance.