Objective To obtain the short peptides from phage-displayed random peptide library through screening the epitope of monoclonal antibody against tumor necrosis factor(TNF-?). Methods Anti-TNF-? was used to immunoscreen a phage random peptide library of 12 amino-acidresidues displayed as a fusion to protein Ⅲ of filamentous phage M13. The positive clones were obtained by three rounds of biopanning, and the reactivity of each clone binding to anti-TNF-? was examined by double-antibody sandwich ELISA and Dot-ELISA. Mixed positive phage clones were used to detect the serum from SLE patients and healthy persons by Dot-ELISA. Results The eluted phages were enriched nearly 100 fold through three rounds of biopanning, 7 phage clones from the third round biopanning were randomly selected and 5 clones of them could bind to the anti-TNF-?. The binding rate of mixed clones with SLE patients was significantly higher than that of healthy persons. Conclusion The phage display technique can be applied to study the anti-TNF-? antigenic peptides, and these epitopes provide the potential for developing immunodiagnostic reagents of vaccines.

Adult ; Air Pollutants ; adverse effects ; Humans ; Male ; Military Medicine ; Monitoring, Physiologic ; Noise, Occupational ; adverse effects

RNA-Sequencing (RNA-Seq) is a newly-developed method in transcriptome research, it can afford more accurate transcription information and be more quickly by using Next-generation Sequencing (NGS) technology. RNA-Seq has been widely used in various biological fields. Genuine traditional Chinese medicines (TCM), with good quality and therapeutic effect, were always praised highly and used by famous physicians. The geo-herbalism formation of TCM is based on the product of the gene expression at specific space and time. So it has been a research hotspot to analyze the mechanism of biosynthesis through RNA-Seq in the study on the secondary metabolism of medicinal plant. This article mainly illustrates the RNA-Seq and its advantages, it also discusses the potential application in genuine TCM, and it can provide useful information for other researchers.
Drugs, Chinese Herbal ; Gene Expression Profiling ; High-Throughput Nucleotide Sequencing ; Medicine, Chinese Traditional ; Plants, Medicinal ; genetics ; RNA ; Sequence Analysis, RNA ; Transcriptome

Objective To investigate the effect of triptolide on the proliferation and apoptosis of human epidermal squamous cell carcinoma cell line A431 in vitro. Methods Human epidermal squamous cell carcinoma cell line A431 was cultured. After the treatment with triptolide, the inhibi-tion of cellular growth was determined by measuring MTT dye absorption of the living cells. Light mi-croscope showed morphological changes. The cell cycle and apoptosis rate were assessed by flow cy-tometry. Results Triptolide could significantly inhibit the proliferation of A431 cells in a dose- and time-dependent manner. Triptolide could also cause cell morphological changes ( the number of float-ing cells and nuclear pyknosis increase), induce cell apoptosis, and change the distribution of cell cycle phase in A431 cells. Compared with the control group, the G0/G1 phase A431 cell rate in-creased and the rate of S phase cell decreased in TP-treated group. Cell cycles were obviously inhibi-ted by triptolide in G0/G1 phase (both P<0.05). Conclusion TP could play an anti-tumor role by effectively inducing cell apoptosis and inhibiting the proliferation of A431 cells.

Objective To investigate the clinical and pathological features of rectal carcinoid and factors influencing the prognosis. Methods Clinical data of 29 cases with postoperative pathology identified diagnosis of rectal carcinoid from May 1998 to May 2008 in the two hospitals were retrospectively reviewed. Endoscopic submucosal resection of the tumor was conducted in 5 cases,local resection in 14 cases, local expanded resection of the tumor in 4 cases, transsacral local wide resection in 2 cases, radical operation in 4 cases. Results Median age at treatment was 32～71 (54±11) years. Median follow-up was (61±4) months (3 months-10 years), follow-up rate was 76%. During a follow-up, there were no cases with recurrence among the 13 patients with tumor size<1 cm, 1 case recurred in the 5 patients with turmor size between 1 to 2 cm, and 3 cases died from postoperative liver metastasis among the 4 patients with tumor size > 2 cm. The 5-, 10-year disease-specific survival rates were 87% and 80% respectively. Conclusions Surgery is the best therapy for rectal carcinoid, the choice of operative mode must be made according to the size,infiltration of the tumor, the condition of infiltrated lymph node and hepatic metastasis.

Objective To investigate the role of cyclophilin A (CypA) and CD147 in the process of skin aging. Methods Twenty cases of tissue samples from junior group(＜15 years old), middle age group(30-40 years old)or old age group (＞65 years old) were collected from photophobic and exposal parts of skin, respectively. Immunohistochemistry (IHC) and in situ hybridization (ISH) were carried out to semi-quantitatively detect the expression level of CyPA and CD147. Results IHC demonstrated that both CyPA and CD147 were expressed in both photophobic and exposal parts of normal human skin in all 3 groups. The expression levels of both CyPA and CD147 were increased with increase in age. There were significant differences in both CyPA and CD147 expression among 3 groups (P<0.05). CyPA and CD147 were also positively correlated in all 3 groups. Similar results were achieved by ISH. Conclusion The interaction between CD147 and CyPA might play an important role in the process of skin aging.

Objective To observe the protection of human keratinocyte cell line, HaCaT cell, from UVA damage by resveratrol and its possible mechanism. Methods HaCaT cells were incubated with or without 0.01 mmol/L or 0.1 mmol/L resveratrol after exposure to 5 J/cm2 UVA irradiation. Unirradiated HaCaT cells-without the treatment with resveratrol served as the control. After another 24-hour culture, MTT assay was used to detect the proliferation of cells, RT-PCR and Western-blot to measure the iNOS mRNA and protein expression respectively, electron microscopic technique to observe the changes in cell ultrastructure. Results After irradiation with UVA of 5 J/cm2, the proliferation of HaCaT cells decreased with the absorbance at 490 nm descending from 0.889±0.083 to 0.542±0.004, while a significant increase was observed in the relative expression level of iNOS mRNA and protein in HaCaT cells (1.532±0.041 vs 0.009±0.003, 1.331 ±0.046 vs 0.003±0.001, both P < 0.05) with the presence of typical apoptotic cells. The treatment with 0.01 and 0.1 mmol/L resveratrol significantly promoted the proliferation of irradiated cells with the absorbance at 490 nm being 0.753±0.435 and 0.892±0.173 respectively, but inhibited the mRNA (0.853±0.038 vs 1.532±0.041, 0.392±0.033 vs 1.532±0.041, both P< 0.05) and protein expression level (0.809±0.018 vs 1.331±0.046, 0.412±0.026 vs 1.331±0.046, both P< 0.05) of iNOS in irradiated cells, and the resveratrol of 0.1 mmol/L was more effective than that ofO.01 mmol/L in all tested parameters (P< 0.05). Furthermore, no apoptofic cells or necrotic cells were observed in irradiated ceils incubated with resveratrol. Conclusion Resveratrol effectively protects HaCaT cells from UVA damage, which may be related to the inhibition of UVA-induced iNOS expression by resveratrol.

Genuine medicinal materials with special characteristics of Traditional Chinese Medicine (TCM), is recognized as high quality medicine. Both ancient records and modern research considered that the origin is an important reason for the formation of genuine medicinal materials. However, blindly transplanting of genuine medicinal materials has led to the quality decline and counterfeit medicines appeared in production or sale progress, which may increase the risk of accidents in TCM. Frequent accidents emerged in Chinese herbal affects its export. What's more, it is a great threat to the medication safety in TCM clinical. There is an urgent need to implement traceability systems of TCM, which could provide convenient information record and traceability of TCM circulation. This paper reviews a variety of technical methods for genuine medicinal materials traceability, and proposed the establishment of genuine medicinal materials traceability system based on two-dimensional code and network database.
Databases, Factual ; Drugs, Chinese Herbal ; chemistry ; economics ; standards ; Medicine, Chinese Traditional

Objective:To investigate the polymorphism of HLA-DQA1 genes in Jing nationality of Central Vietnam.Methods:Applied PCR-SSP tecnique to determine the polymorphism of the HLA-DQA1 alleles of 105 healthy children and youth,unrelated individuals in Central of Vietnam.Results:10 HLA-DQA1 alleles were detected of which DQA1*0104 were the most common allele with frequency of 21.3% and lowest frequency is DQA1*0601.Conclusion:The results indicate that HLA-DQA1 alleles polymorphism of Jing nationality in Central Vietnam is different from the other Chinese. [

OBJECTIVETo make out a computerized formula to diagnose eye's signs of blood-stasis syndrome (BSS), and to improve the previous diagnostic methods by naked eyes.

METHODSThe formula was created by detecting and analyzing the changes of eye's signs in 544 patients (261 of non-BSS and 283 of BSS) quantitatively, adopting computer's color scale principle. And the sensitivity, specificity and accuracy of the formula were verified in 382 patients (97 non-BSS and 285 of BSS). The computerized integral was compared with the naked eye integral, and the normal reference value was calculated with percentile.

RESULTSVarious observatory indices of eye's sign were positively correlated with BSS. The specificity of the computerized method was 83.5%, and the diagnostic sensitivity was 89.8%, the accuracy 88.2%, and the correct index 0.733. Comparisons between the computerized integral method and the naked eye integral method showed significant difference in patients of non-BSS or of BSS in various degrees (including mild, moderate and severe) (P < 0.01). The reference value of the naked eye method was below 15.

CONCLUSIONThe computerized formula of eye's signs has higher specificity and sensitivity in the diagnosis of BSS, while the naked eye integral method is proved to be useful.

Adolescent ; Adult ; Aged ; Diagnosis, Computer-Assisted ; Diagnosis, Differential ; Female ; Humans ; Male ; Medicine, Chinese Traditional ; methods ; Middle Aged ; Reference Values ; Sensitivity and Specificity ; Young Adult