Research status of occupational methanol poisoning based on literature bibliometrics / 中国职业医学

@#Objective To analyze the research status and hotspot of occupational methanol poisoning at home and abroad. Methods ， The China National Knowledge Resource Database Wanfang Data Knowledge Service Platform and Web of Science were used as the data sources. The relevant literatures on occupational methanol poisoning published in domestic and foreign ， Results journals up to June 30 2021 were searched. The bibliometrics was used to analyzed the literatures. A total of 255 literatures were included in analysis. There were 187 Chinese articles and 68 English articles. Most of Chinese articles were ， ， published from 2001 to 2005 with an average of 26.7 literatures per five years until June 2021. Among them 72 literatures （ ）， ， were published in core journals 38.5% and 176 authors from 27 provinces autonomous regions and municipality directly ， under the central government published relevant literatures. The research contents mainly focused on the classification ， ， poisoning mode clinical manifestations visual impairment and poisoning prevention and treatment of occupational methanol - ， poisoning. Most of the English literatures were published in 2016 2020 with an average of 4.9 articles per five years until June ， （ ）， 2021. Among them 36 were published in SCI journals 52.9% and 57 authors from 11 countries published relevant ， ， ， literatures. The research contents mainly focused on the clinical diagnosis drug treatment intoxication mechanism visual Conclusion sequelae and brain injury of occupational methanol poisoning. The research on occupational methanol poisoning ， ， ， mainly focuses on clinical diagnosis clinical manifestations treatment and prognosis and pathogenesis. The focus of relevant research at home and abroad is different.

Application of Response Evaluation Criteria of Traditional Chinese Medicine for Solid Tumor in advanced non-small cell lung cancer / 中国结合医学杂志

<p><b>OBJECTIVE</b>To evaluate the objectivity and comprehensiveness of Response Evaluation Criteria of Traditional Chinese Medicine for Solid Tumor (Draft, REC-TCM-ST) in application of Chinese medicine therapeutic effect in patients with advanced non-small cell lung cancer (NSCLC).</p><p><b>METHODS</b>A retrospective clinical research was used in 104 NSCLC patients in stages of III-IV, 53 cases were in Chinese medicine (CM) group and 51 cases were in Western medicine (WM) group. The therapeutic effect of the two groups was evaluated with both REC-TCM-ST and Response Evaluation Criteria in Solid Tumor (RECIST). Kaplan-Meier method was used to analyze the survival time. Kappa test method was used to test the consistency of the two kinds of evaluation results.</p><p><b>RESULTS</b>According to REC-TCM-ST, the effective rate on relieving tumor mass in the CM group was significantly lower than that in the WM group (P<0.05), but there was no significant difference in tumor-mass stable rate (P>0.05); the symptom of weakness in the CM group was improved significantly, indicating better therapeutic effect than that in the WM group (P<0.01). Karnofsky score in the CM group was significantly better than that in the WM group (P<0.01). In terms of survival conditions, the median survival time and the survival rate of 6 months, 1 year and 2 years of the CM group were higher than the WM group. The total effective rate was 9.62%, and the total stable rate was 72.12% for 104 cases according to RECIST; while the total effective rate was 34.62%, and the total stable rate was 84.62% according to REC-TCM-ST, thus there were significant differences between the results of the two criteria (P<0.01), and there was also some consistency between them, but not satisfactory.</p><p><b>CONCLUSIONS</b>REC-TCM-ST was used to evaluate the therapeutic effect of CM in the treatment of advanced NSCLC, which shows that its evaluation results can better reflect the advantages and disadvantages of CM, and the effectiveness of CM is more objective and comprehensive than RECIST, so REC-TCM-ST is worthy of further improvement and clinical expansion.</p>

Overexpression of Fc receptor-like 1 associated with B-cell activation during hepatitis B virus infection

The role of B cells in the pathogenesis of hepatitis B virus (HBV) infection has not been explored in depth. In the present study, the activation status of B cells from peripheral blood of healthy controls (N = 20) and patients with acute hepatitis B (AHB, N = 15) or chronic hepatitis B (CHB, N = 30) was evaluated by measuring the expression levels of B-cell activation markers CD69 and CD86, using quantitative real-time PCR and flow cytometry. Moreover, the potential mechanism underlying B-cell activation during HBV infection was further investigated by analyzing the expression profile of FCRL1, an intrinsic activation molecule of B cells. An elevation in the levels of B-cell activation markers including CD69 and CD86 was observed in the AHB patients (44.31 ± 9.27, 27.64 ± 9.26%) compared to CHB patients (30.35 ± 11.27, 18.41 ± 6.56%, P < 0.05), which was still higher than healthy controls (12.23 ± 7.84, 8.22 ± 3.43%, P < 0.05). Furthermore, the expression of FCRL1 was found to be similar to B-cell activation markers, which was highest in AHB patients (70.15 ± 17.11%), lowest in healthy donors (36.32 ± 9.98%, P < 0.05) and half-way between these levels in patients with CHB (55.17 ± 12.03%, P < 0.05). The results were positively associated with aberrant B-cell activation. These data suggest that B cells can play a role in HBV infection, and therefore more effort should be devoted to exploring their functions.

Application of two bacteria colony-PCR methods in the screening of phage antibody library / 医学研究生学报

Objective:To value the application of two bacteria colony-PCR methods in the screening of phage antibody library. Methods:Five positive monoclonal bacterium were respectively suspended in either deionized water or 0.1% Triton X-100, and then boiled to be used as template in PCR. . The DNAs products of PCR were extracted and digested by two enzymes, and then determined by electrophoresis. Results:The inserted genes were detected in all the 5 clones after PCR and enzyme digestion .Conclusion:Bacteria colony-PCR can be used in screening positive recombinant colonies. The bacteria colony-PCR method with bacteria colonies suspended in deionized water is valuable in large scale positive recombinant bacterium screening.

Retrovirus-mediated HSV_1-tk gene therapy for androgen-independent prostate cancer / 中华泌尿外科杂志

Objective To use HSV 1 tk (herpes simplex virus type Ⅰthymidine kinase)/GCV (ganciclovir) in androgen independent prostate cancer cells(C4 2,PC3) in vitro in order to provide useful basis for clinical use. Methods HSV 1 tk gene was ligated to a pN 2A retroviral vector. Recombinant DNA molecules being introduced into a packaging cell line PA317,the high titer virus producer cells (VPC) were screened.The integration and expression of HSV 1 tk gene in VPC was observed by PCR and RT PCR. VPC was co cultured with these cancer cells in the light of 1∶1,1∶2,1∶4,1∶8.Cell viability (cytotoxicity) was assessed by SRB (sulforhodamine B protein dye binding)after the first day,the third day,the fifth and the seventh day. Results The highest titer VPC producing HSV 1 tk gene was isolated. Retrovirus mediated HSV 1 tk gene therapy was effective and active against such prostate cancer cells.The best one was co culture of VPC and cancer cells at 1∶1 and the fifth day followed by GCV. Compared with C4 2, PC3 decreased remarkably.The activation of apoptosis and other ways failed to be found. Conclusions Retrovirus mediated HSV 1 tk gene therapy in Vitro directly killed the tumor cells by cytolytic activity.