1.A visual RT-LAMP-VF method for detection of Zika virus nucleic acid
Yumeng SONG ; Pei HUANG ; Hongli JIN ; Cuicui JIAO ; Yujie BAI ; Mengyao ZHANG ; Zhiyuan GONG ; Yuanyuan LI ; Haili ZHANG ; Hualei WANG
Chinese Journal of Veterinary Science 2024;44(8):1698-1703
To establish a simple,convenient,sensitive,and specific method for rapid detection of Zi-ka virus(ZIKV),the whole genome sequences of ZIKV isolated from different times and regions were analyzed.The specific primers and probes were designed based on the screened target se-quences located in the conserved region of the ZIKV NS5 gene.By combining RT-LAMP isother-mal amplification technology and immunochromatography technology,a reverse transcription loop mediated isothermal amplification nucleic acid and flow visualization strip(RT-LAMP-VF)detec-tion method for ZIKV was established.The results showed that the method had good specificity and sensitivity.When the ratio of inner,outer,and ring primers(FIP∶LF∶F3)was 4∶2∶1,the detection method can specifically detect 102 copies/pL RNA transcripts or 2.15 pfu ZIKV at 61 ℃for 45 minutes,with no cross reaction with other flaviviruses such as Japanese encephalitis virus and classical swine fever virus.Other RNAs in blood tissue samples did not affect the sensitivity and specificity of RT-LAMP-VF,indicating that the method can be applied to clinical practice.The ZIKV RT-LAMP-VF detection method established in this study is easy to perform and does not require special instruments and equipment.It is particularly suitable for the rapid detection of ZIKV in grassroots units,providing technical support and material support for the establishment of on-site rapid detection and early warning and prediction systems for ZIKV disease.
2.Observation on the efficacy of subthreshold micropulse laser photocoagula-tion in the treatment of central serous chorioretinopathy based on multimodal imaging classification
Bei XIAO ; Yanping SONG ; Ming YAN ; Ya YE ; Zhen HUANG ; Cong CHEN ; Yumeng DENG
Recent Advances in Ophthalmology 2024;44(7):531-535
Objective To observe the efficacy of 577 nm subthreshold micropulse laser photocoagulation(SMLP)on central serous chorioretinopathy(CSC)and explore the baseline characteristics and prognostic features of multimodal ima-ging-based CSC.Methods A retrospective analysis was conducted on 44 patients(46 eyes)with CSC diagnosed at the Ophthalmology Department of the General Hospital of Central Theater Command,PLA from June 2017 to May 2022.The pa-tients were classified into the simple CSC group(23 eyes)and the complex CSC group(23 eyes)based on the multimodal imaging classification.All patients underwent 577 nm SMLP treatment.The best corrected visual acuity(BCVA)and cen-tral macular thickness(CMT)of patients between the two groups were compared before treatment and at 1,3 and 6 months after treatment.The intra-group and inter-group changes and the complete absorption rate of subretinal fluid(SRF)in CSC eyes of patients between the two groups were assessed before treatment and at 6 months after follow-up.Results The BCVA of patients in the simple CSC group significantly improved at 6 months after treatment compared with the base-line(P=0.010);the BCVA of patients in the complex CSC group significantly improved at 3 and 6 months after treatment compared with the baseline(both P<0.01).The CMT of patients in the simple CSC group was significantly lower than the baseline at 1,3,and 6 months after treatment(all P<0.05);the CMT of patients in the complex CSC group was signifi-cantly lower than the baseline at 1 and 6 months after treatment(both P<0.05);the change in CMT from baseline after 6 months of treatment for simple CSC was(-163.74±88.10)μm,the change in CMT from baseline after 6 months of treat-ment for complex CSC was(-71.96±164.30)μm,and the difference between the two groups was statistically significant(P=0.023).During the follow-up period,the number of eyes with persistent SRF in the simple CSC group was significant-ly lower than that in the complex CSC group(P<0.05).The complete absorption rate of SRF at 6 months after treatment in the simple CSC group was greater than that in the complex CSC group(P<0.05).Conclusion The prognosis of sim-ple CSC treated with 577 nm SMLP is better than that of complex CSC,and the new multimodal imaging classification has a certain value in predicting the prognosis of CSC after SMLP.
3.Revision of the curative effect evaluation part of Criteria for Diagnosis and Treatment of Diseases in Traditional Chinese Medicine - Edema based on delphi method
Xinxin MAO ; Qingqiao SONG ; Yumeng LI ; Huaqin WU ; Haoran ZHENG ; Bingxuan ZHANG
International Journal of Traditional Chinese Medicine 2024;46(10):1264-1270
Based on literature research and Delphi method, the curative effect evaluation criteria of Traditional Chinese Medicine (TCM) edema were revised, in order to promote the standardization construction of the curative effect evaluation of edema and strengthen the research on the revision technology of TCM standards. From January 1, 1994 to July 1, 2021, the China National Knowledge Infrastructure (CNKI), China Science and Technology Journal Database (Chongqing VIP), Chinese Academic Periodical Database (Wanfang Data) and Chinese Biomedical Literature Service System (SinoMed) were searched, and 221 articles were included. Then the questionnaire item pool was constructed after extracting the contents of the articles. Delphi method was used to conduct two rounds of expert questionnaire survey. And then the concentration degree and coordination degree of expert opinions were counted and analyzed to screen out the content to be revised and the indicators to be included in the revised version, so as to form the revised version of curative effect evaluation criteria of edema. A total of 32 experts participated in this study, and the positive coefficient of experts in the first round was 84.21%, and the positive coefficient of experts in the second round was 78.13%. The mean value ( Xˉ), full score ratio, rank sum, coefficient of variation ( CV), Kendall's coefficient of concordace (Kendall's W) were used to select the questionnaire items. Kendall's W of the second round of expert questionnaire survey was 0.368, P=0.000, higher than that of the first round, and 11 items were finally included in the curative effect evaluation. The CV of the included items in the second round of the questionnaire is lower than that in the first round, and Kendall's W was higher than that in the first round, and the expert opinions tend to be unified. Consensus was reached after the expert discussion meeting, and the revised version of curative effect evaluation criteria of edema has been preliminarily formed.
4.Analysis on knowledge mapping of edema treated with TCM: a bibliometrics based quantitative study
Haoran ZHENG ; Bingxuan ZHANG ; Qingqiao SONG ; Shuqing SHI ; Huaqin WU ; Yumeng LI ; Xia XU ; Jiayu LYU ; Yajiao WANG ; Xinxin MAO
International Journal of Traditional Chinese Medicine 2023;45(7):884-891
Objective:Applying bibliometrics to analyze the research history, hotspots and trends of Traditional Chinese Medicine (TCM) interventions in edema-related diseases, and to provide reference for the revision of diagnostic and therapeutic criteria for edema in TCM.Methods:The literature about edema treated with TCM was retrieved from CNKI, Wanfang, VIP, CBM from 1 st. Jan 1995 to 25 th. May 2022. CiteSpace and VOSviewer softwares were used to draw the knowledge map, and analyze the co-occurrence relationship and clustering characteristics of the institution, author, keywords and mechanism hotspots. Results:Totally 3 198 articles were included. The annual number of documents issued generally shows a spiral rise trend. Liaoning University of Chinese Medicine published the most articles. Core authors published the most articles were Sun Wei (13 articles); the team with the highest cooperation intensity was Yang Hongtao's team; keywords formed 7 clusters. Hotspot mechanisms included metabolic disorders, immune balance, anti-inflammation, calcium and phosphorus metabolism. Keywords in the past 7 years were membranous nephropathy, chronic heart failure, diabetes, lymphedema etc.Conclusions:The attention paid to the intervention of TCM in the field of edema is generally on the rise, and has decreased in the past two years. The research categories focus on the experience of famous doctors, clinical trials, and mechanistic studies, and nephropathy-related edema has been the focus of research; diabetic nephropathy, chronic heart failure, metabolomics, and immunotherapy are expected to be the focus of attention in the next stage.
5.Study on the efficacy evaluation criteria of randomized controlled trials of TCM in the treatment for edema
Xinxin MAO ; Qingqiao SONG ; Huaqin WU ; Shuqing SHI ; Yumeng LI ; Xia XU ; Jiayu LYU ; Yajiao WANG ; Haoran ZHENG ; Bingxuan ZHANG
International Journal of Traditional Chinese Medicine 2023;45(9):1157-1161
Objective:To analyze the efficacy evaluation criteria of the existing TCM treatment for edema RCT research, and to provide reference for the construction of unified standards.Methods:The batabases CNKI, WanFang Data, VIP, CBM, Pubmed and Web of Science were retrieved. The randomized controlled trials for the treatment of edema of TCM research, from September 1, 1993 to July 31, 2022, were screened and included. The content of efficacy evaluation, performed statistics on evaluation standard, the curative effect evaluation indexes, as well as standard composition, usage were extracted. We analyzed the characteristics, application and problems of the existing efficacy evaluation criterion.Results:A total of 123 Chinese articles were included. The included literature involved nephrogenic edema, cardiogenic edema, idiopathic edema, apoplexy limb edema and other edema. In recent years, randomized controlled trials on the treatment of edema by TCM have mainly used four efficacy evaluation criteria. Of which the Guidelines for Clinical Research on New Chinese Medicines (Trial) in 2002 had the highest utilization rate of 29.27%. Secondly, the utilization rate of Standard for Diagnosis and Curative Effect of TCM Diseases and Syndromes was 21.14%. The rest of the criteria were used by less than 6%. While 39.02% of the literature did not use the standards or used self-designed standards. Among the composition of efficacy evaluation indices, the application rate of TCM syndrome or symptom efficacy index was the highest (91.87%), the utilization rate of the Minnesota Living with Heart Failure Questionnaire Indicators was only 4.88%; biochemical tests accounted for a large proportion of Western medical indicators, while the measurement of edema severity was rarely applied. Conclusions:At present, the evaluation criteria of edema curative effect are diversified and insufficiently popularized, which need to be further screened and improved. It is suggested to construct a TCM edema efficacy evaluation model based on the characteristics of edema syndrome, comprehensively evaluate the efficacy from multiple dimensions such as TCM syndromes, western medicine indicators, and quality of life, and improve the scientific indicators.
6.Clinical outcomes of transcatheter aortic valve implantation in oncology versus non-oncology patients with severe aortic stenosis: A systematic review and meta-analysis
Yumeng SONG ; Tianqi CHANG ; Yiyu GU ; Yinan XU ; Mingyang ZHANG ; Yutong WANG ; Tingbo JIANG
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2022;29(05):634-641
Objective To compare the clinical outcomes of transcatheter aortic valve implantation (TAVI) in oncology and non-oncology patients with severe aortic stenosis (AS). Methods A computer-based search in PubMed, The Cochrane Library, EMbase, CBM, CNKI and Wanfang databases from their date of inception to December 2021 was performed, together with reference screening, to identify eligible clinical trials. Two investigators screened the articles, extracted data, and evaluated quality independently. RevMan 5.3 and Stata 12.0 softwares were used for meta-analysis. Results The selected 8 cohort studies contained 57 988 patients, including 12 335 cancer patients and 45 653 non-cancer patients. The results of meta-analysis showed that in patients with cancer, the 30-day mortality [OR=0.74, 95%CI (0.65, 0.84), I2=0%, P<0.000 01], stroke [OR=0.87, 95%CI (0.76, 0.99), I2=0%, P=0.04] and acute kidney injury [OR=0.81, 95%CI (0.76, 0.85), I2=49%, P<0.000 01] were lower than those in patients without cancer. The 1-year mortality [OR=1.46, 95%CI (1.15, 1.86), I2=62%, P=0.002] and late mortality [OR=1.51, 95%CI (1.24, 1.85), I2=61%, P<0.000 1] were higher in patients with cancer. Conclusion It is effective and safe in cancer patients with severe AS undergoing TAVI. However, compared with patients without cancer, it is still high in long-term mortality, and further study of the role of TAVI in cancer patients with AS is necessary.
7.Influencing factors of willingness to use mobile health management application in patients after percutaneous coronary intervention
Lili YAO ; Yumeng GAO ; Guiqi SONG ; Lunfang XIE
Chinese Journal of Modern Nursing 2022;28(26):3558-3564
Objective:To explore the willingness and main influencing factors of using mobile health management APP in patients after percutaneous coronary intervention (PCI) based on integrated information technology acceptance and use model.Methods:From July to November 2021, a total of 308 patients after PCI in Department of Cardiovascular Medicine of two ClassⅢ Grade A hospitals in Anhui Province were selected as the research objects by the convenient sampling method. The general information questionnaire and the questionnaire on patients' willingness to use mobile health management APP were used to investigate the patients after PCI. Structural equation model was used to analyze the influencing factors and path relationship of patients' willingness to use after PCI.Results:Contributing factors, effort expectation and social influence had positive effects on patients' willingness to use PCI ( P< 0.05) , and the effect values were 0.554, 0.247 and 0.138, respectively. Perceived risk and effort expectation had effects on performance expectation of patients after PCI ( P<0.05) . Conclusions:Enhancing technical support in various ways, giving play to the publicity role of medical staff, important relatives and friends and new media and improving the ease of use of products can help improve the willingness of patients to use mHealth APP after PCI.
8.Influencing factors of willingness to use mobile health management application in patients after percutaneous coronary intervention
Lili YAO ; Yumeng GAO ; Guiqi SONG ; Lunfang XIE
Chinese Journal of Modern Nursing 2022;28(26):3558-3564
Objective:To explore the willingness and main influencing factors of using mobile health management APP in patients after percutaneous coronary intervention (PCI) based on integrated information technology acceptance and use model.Methods:From July to November 2021, a total of 308 patients after PCI in Department of Cardiovascular Medicine of two ClassⅢ Grade A hospitals in Anhui Province were selected as the research objects by the convenient sampling method. The general information questionnaire and the questionnaire on patients' willingness to use mobile health management APP were used to investigate the patients after PCI. Structural equation model was used to analyze the influencing factors and path relationship of patients' willingness to use after PCI.Results:Contributing factors, effort expectation and social influence had positive effects on patients' willingness to use PCI ( P< 0.05) , and the effect values were 0.554, 0.247 and 0.138, respectively. Perceived risk and effort expectation had effects on performance expectation of patients after PCI ( P<0.05) . Conclusions:Enhancing technical support in various ways, giving play to the publicity role of medical staff, important relatives and friends and new media and improving the ease of use of products can help improve the willingness of patients to use mHealth APP after PCI.
9.Association between hyper-reflective dots on spectral-domain optical coherence tomography and lipid levels and systemic inflammatory factors in patients with branch or central retinal vein occlusion
Yumeng DENG ; Zhen HUANG ; Ya YE ; Ming YAN ; Yanping SONG
Chinese Journal of Ocular Fundus Diseases 2021;37(2):115-121
Objective:To investigate the correlation between hyperreflective dots (HRD) and lipid levels and systemic inflammatory factors in patients with branch retinal vein occlusion (BRVO) or central retinal vein occlusion (CRVO).Methods:A cross-sectional clinical study. From December 2016 to June 2020, 118 eyes of 118 patients with retinal vein occlusion diagnosed in the Department of Ophthalmology, Central Theater Command Hospital of People's Liberation Army were included in the study. Among them, 67 cases of BRVO and 51 cases of CRVO were divided into CRVO group and BRVO group accordingly. Peripheral venous blood was drawn from the patients within 3 days after the eye examination to detect the percentage of neutrophils, monocytes, hypersensitive C-reactive protein (CRP), total cholesterol, triglyceride, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, and lipoprotein(a). The ratio of monocytes to high-density lipoprotein (MHR) was also calculated. The 3D OCT-2000 instrument from Topcon (Japan) was used to measure the central retinal thickness (CRT) and the numbers of HRD. According to the different distribution position, HRD is divided into inner retina HRD, outer retina HRD, and total retina HRD.The independent sample t test was used to compare the continuous variables of the two groups, and the χ2 test was used to compare the rates. The correlation between HRD counts and blood lipid levels and peripheral blood inflammation indicators in patients with different types of RVO was analyzed by Spearman correlation analysis. Results:The average age of patients in the BRVO group and CRVO group were 60.1±9.5 and 53.6±15.7 years, respectively; the prevalence of hypertension was 53.7% (36/67) and 24.5% (12/51), respectively. Comparison of age ( t=2.634) and prevalence of hypertension ( χ2=11.298) between the two groups showed statistically significant differences ( P<0.05). Gender ( χ2=2.000), course of disease ( t=-1.101), prevalence of diabetes ( χ2=1.315), eye category ( χ2=1.742), baseline visual acuity ( t=1.792), intraocular pressure ( t=0.708), CRT ( t=1.318), and peripheral blood include the percentage of neutrophils, the absolute number of monocytes, CRP, total cholesterol, triglycerides, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, lipoprotein(a), MHR ( t=-0.559, 1.126, 0.579, 1.299, -0.134, 0.556, 1.230, -0.267, 0.483), the difference was not statistically significant. Correlation analysis showed that the HRD counts in the outer retina of BRVO patients were positively correlated with total cholesterol ( r=0.289, P=0.036); the HRD in the inner retina and total HRD counts of CRVO patients were positively correlated with CRP ( r=0.406, 0.343; P=0.004, 0.014). There was no correlation between HRD counts and percentage of neutrophils, absolute number of monocytes, triglycerides, high-density lipoprotein, low-density lipoprotein, lipoprotein(a), and MHR ( P>0.05). Conclusion:The number of HRD is related to the blood lipid level in BRVO patients and CRP (an inflammatory index) in CRVO patients.
10.Complete genome and phylogenetic analysis of bovine papillomavirus type 15 in Southern Xinjiang dairy cow
Jianjun HU ; Wanqi ZHANG ; Surinder Singh CHAUHAN ; Changqing SHI ; Yumeng SONG ; Yubing ZHAO ; Zhehong WANG ; Long CHENG ; Yingyu ZHANG
Journal of Veterinary Science 2020;21(6):e73-
Background:
Bovine papilloma is a neoplastic disease caused by bovine papillomaviruses (BPVs), which were recently divided into 5 genera and at least 24 genotypes.
Objectives:
The complete genome sequence of BPV type 15 (BPV Aks-02), a novel putative BPV type from skin samples from infected cows in Southern Xinjiang China, was determined by collecting warty lesions, followed by DNA extraction and amplicon sequencing.
Methods:
DNA was analyzed initially by polymerase chain reaction (PCR) using the degenerate primers FAP59 and FAP64. The complete genome sequences of the BPV Aks-02 were amplified by PCR using the amplification primers and sequencing primers. Sequence analysis and phylogenetic analysis were performed using bio-informatic software.
Results:
The nucleotide sequence of the L1 open reading frame (ORF) of BPV Aks-02 was 75% identity to the L1 ORF of BPV-9 reference strain from GenBank. The complete genome consisted of 7,189 base pairs (G + C content of 42.50%) that encoded 5 early (E8, E7, E1, E2, and E4) and 2 late (L1 and L2) genes. The E7 protein contained a consensus CX2CX29CX 2 C zinc-binding domain and a LxCxE motif. Among the different members of this group, the percentages of the complete genome and ORFs (including 5 early and 2 late ORFs) sequence identity of BPV Aks-02 were closer to the genus Xipapillomavirus 1 of the Xipapillomavirus genus.Phylogenetic analysis and sequence similarities based on the L1 ORF of BPV Aks-02 revealed the same cluster.
Conclusions
The results suggest that BPV type (BPV Aks-02) clustered with members of the Xipapillomavirus genus as BPV 15 and were closely related to Xipapillomavirus 1.

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