1.Research progress of in-stents neoatherosclosis after drug eluting stent implantation
Chinese Journal of Postgraduates of Medicine 2016;39(8):765-768
With the application of drug eluting stent implantation in coronary intervention, the safety and effectiveness of surgical treatment of obstructive coronary artery disease have has been improved, while the postoperative complications still appear to be a concern. In recent years, studies have found that in-stent neoatherosclosis may be an important factor in the development of late stent failure. And with the development of imaging techniques, the in-stent neoatherosclosis after drug eluting stent implantation has been further recognized. However, the mechanism of the development of in-stent neoatherosclosis is still not very clear.
2.The correlation between chronic hepatic diseases and small intestinal inflammation
Lihao WU ; Meihui CHEN ; Jieyi CAI ; Yu YUAN ; Xingxiang HE
Chinese Journal of Digestive Endoscopy 2017;34(5):322-325
Objective To investigate the correlation between chronic hepatic diseases and small intestinal inflammation.Methods Patients who received capsule endoscopy in The First Affiliated Hospital of Guangdong Pharmaceutical University were divided into groups of liver cirrhosis,non-alcoholic fatty liver disease(NAFLD),chronic hepatitis and non-hepatic disease according to clinic data from August 2011 to August 2015.The severity of small intestinal mucosal inflammation was graded according to Lewis Scoring system and incidence of small intestinal lesions in different groups and Lewis scores were compared.The liver function was also graded with liver noninvasive scoring systems.Then the correlation between liver function damage and small intestinal lesions was investigated.Results A total of 338 cases were enrolled in the study,including 25 cases of liver cirrhosis,47 cases of NAFLD,20 cases of chronic hepaitis and 246 cases of non-hepatic disease.There were 22 (88.0%),36 (76.6%),12 (60.0%) and 78 (31.7%) cases with lesions in small intestine in the four group respectively with significant differences(P<0.001).Rate of small intestinal villi edema was significantly higher in liver cirrhosis group,NAFLD group,chronic hepatitis group than that in non-hepatic disease group(all P<0.017).Small intestinal villi edema was found mainly in the upper and one third of middle parts in small intestine (P =0.033).Lewis scores of liver cirrhosis group (190.80±228.42)and NAFLD group(125.38± 191.31) were higher than those of non-hepatic disease group (42.91±97.69,P=0.021,P =0.034).Forns score,FIB-4 score,NAFLD-FS score and Child-Pugh score were positively correlated with Lewis score (correlation coefficient:0.247,0.244,0.223,0.284respectively,all P<0.001).Conclusion Chronic hepatic diseases such as liver cirrhosis,NAFLD,chronic hepatitis might be risk factors for small intestinal mucosal inflammation,and the severity of chronic hepatic diseases may be positively correlated with that of small intestinal mucosal lesions.
3.Murine typhus in Xishuangbanna Prefecture, Yunnan Province,China
Hailin ZHANG ; Meihui SU ; Na YAO ; Qiang YU ; Yuzhen ZHANG ; Weihong YANG ; Xueqin CHENG ; Yun FENG ; Dujuan YANG ; Miao SONG ; Heming BAI ; Long MA ; Zhijian NIE ; Shaoqiu CHEN ; Yi QIN ; Shanmei SHI ; Xiaoli YIN ; Lijuan ZHANG
Chinese Journal of Zoonoses 2014;(12):1272-1280
ABSTRACT:In recent years ,there has been high prevalence of murine typhus in Yunnan Province ,People's Republic of China .A large outbreak of murine typhus occurred in Xishuangbanna Prefecture ,Yunnan Province in 2010 .However ,not all cases were confirmed by laboratory assays ;therefore ,field epidemiologic and laboratory investigations of murine typhus in Xishuangbanna Prefecture were conducted in 2011 .Blood samples were collected from clinical diagnostic cases at the acute and convalescence stages of murine typhus in Xishuangbanna Prefecture ,Yunnan Province ,from June to September of 2011 ,and blood and spleen samples were collected from mice sharing the same habitats as the patients .Immunofluorescence assays were used to test for the presence of IgM and IgG antibodies against Rickettsia typhi in sera from patients and mice .Real‐time PCR was used to detect the groEL gene of R .typhi in blood clots from patients at the acute stage and in spleen tissue from mice .A total of 1 157 clinically diagnosed murine typhus cases occurred in Xishuangbanna Prefecture ,Yunnan Province in 2011 ,with an incidence of 102 .10/100 000 .Of these cases ,80 were investigated by laboratory assays and 74 of 80 patients were confirmed to have murine typhus .The coincidence rate between the clinical diagnosis and laboratory detection was 92 .50% .The positivi‐ty rate for IgG antibodies against R .typhi was 14 .0% (14/100) for Rattus f lavipectus ,while the rate by PCR was 9 .0%(9/100) .That laboratory diagnoses confirmed that the severity of the murine typhus outbreak in Xishuangbanna cannot be ig‐nored .The distribution of host animals transmitting R .typhi underscores this conclusion .
4.Study on HPLC Fingerprint of Zhenqi Fuzheng Granules
Xiaoyu WEI ; Guodong JIANG ; Hong CHEN ; Meihui WANG ; Jie XU ; Yu BIAN ; Wenyue JIANG
China Pharmacy 2017;28(33):4691-4694
OBJECTIVE:To establish HPLC fingerprint of Zhenqi fuzheng granules. METHODS:HPLC-ELSD method was ad-opted. The determination was performed on Agilent Zorbax Eclipse XDB-C18 column with mobile phase consisted of acetonitrile-wa-ter(gradient elution)at the flow rate of 1.0 mL/min with column temperature of 40 ℃. The detector evaporation temperature was 50℃,and sample size was 10μL. Using specnuezhenide as reference,HPLC chromatograms of 7 batches of Zhenqi fuzheng gran-ules were determined. The identification and similarity evaluation of common peaks were conducted by using the TCM Chromato-graphic Fingerprint Similarity Evaluation System(2004 A edition). RESULTS:There were 13 common peaks in HPLC chromato-grams of 7 batches of samples. After validated,the similarity of 3 batches of samples in HPLC chromatograms of 7 batches of sam-ples were higher than 0.9,which were in good agreement with control fingerprints. The similarity of 4 batches of samples were <0.9,which were poorly same to control fingerprint. CONCLUSIONS:Established fingerprint can provide reference for quality evalu-ation of Zhenqi fuzheng granules.
5.Logistic regression analysis on influencing factors of health cognition in patients after percutaneous coronary intervention
Miao YIN ; Yumeng LEI ; Meihui YU ; Hui CHEN ; Huarong YE
Journal of Public Health and Preventive Medicine 2021;32(3):99-103
Objective To investigate the status of health knowledge of patients after percutaneous coronary intervention (PCI) and its influencing factors, so as to provide a scientific basis for formulating targeted health education programs. Methods Using a self-designed questionnaire on health cognition after PCI, 433 patients with a history of PCI surgery at a Grade III, Class A hospital between January 2019 and December 2019 were selected as the research subjects to investigate their health cognition and the influencing factors by binary logistic regression analysis. Results The pass rate of health cognition of patients after PCI was 39%, and the total correct rate was 57.5%. The correct rate of drug knowledge and risk factors was the lowest (33.6% and 48.5%, respectively). Binary logistic regression showed that gender, age and cardiac function classification were risk factors for health cognition of patients after PCI, while education level, occupation category and recurrence of discomfort after PCI were protective factors. Conclusion The level of health cognition of patients after PCI is low. Gender, age, education level, occupation category, cardiac function classification and recurrence of discomfort after PCI are independent influencing factors. When implementing health education, medical staff should comprehensively consider the formulation of individualized health education to help.
6.Study on Anti-inflammatory and Detumescent Pharmacodynamic Material Basis of Jingyaokang Capsule
Jie XU ; Wenyue JIANG ; Yali WANG ; Meihui WANG ; Xiaoyu WEI ; Yu BIAN
China Pharmacy 2019;30(4):478-483
OBJECTIVE: To study the anti-inflammatory and detumescent pharmacodynamic material basis of Jingyaokang capsule, and to provide reference for secondary development, the establishment of quality control method and technological upgrading of the preparations. METHODS: The constituents of Jingyaokang capsule were extracted and separated with different solvents and macroporous adsorption resin to obtain constituent A (overall enrichment part), constituent B (chloroform extraction part), constituent C (water-course part) and constituent D (elution part of 60% ethanol). Using dexamethasone acetate as positive control, the anti-inflammatory and detumescent effects of Jingyaokang capsule and different extraction parts (constituents A, B, C, D) were investigated by mice ear edema and rat paw edema tests to screen the active fraction. UPLC-Q-TOF-MS method was used to analyze active constituent, identify compounds and attribute medicinal material. RESULTS: Anti-inflammatory and detumescent effects of constituent B (chloroform extraction part)+constituent D (elution part of 60% ethanol) were similar to those of Jingyaokang capsule in rats or mice, indicating both had synergistic anti-inflammatory and detumescent effects and were active constituents of Jingyaokang capsule. UPLC-Q-TOF-MS detection and identification showed that constituent B contained 13 compounds as strychnine, phellodendrine, periplogenin, tetraketone alcohol, 11-carbonyl-β-mastic acid, attributing to Strychnos nux-vomica, Stephania tetrandra, Periploca sepium, Lycopodium japonicum, Boswellia carterii, etc. Constituent D contained 7 compounds as adenine, hydroxysafflower yellow A, phellodendrine, neoeriocitrin, zingibroside R1, attributing to rainworm, Carthamus tinctorius, Stephania tetrandra, Davallia mariesii, Achyranthes bidentata, etc. CONCLUSIONS: Jingyaokang capsule shows the significant anti-inflammation and detumescent effects. The chloroform extraction part is synergistic with 60% ethanol elution part, which are the active constituents of anti-inflammation and detumescence,mainly including alkaloids, flavonoids and boswellic acids.
7.Research status of adolescent mental health under the COVID-19 pandemic: a visual quantitative analysis based on Citespace
Jiaming YU ; Meihui GAO ; Qian LI ; Tianchang LI ; Bo CHEN ; Xiao ZHOU ; Rui ZHEN
Sichuan Mental Health 2023;36(6):538-546
BackgroundDue to the COVID-19 pandemic, both teenagers' studies and personal life are critically affected, which has resulted in a variety of mental health problems. In this regard, scholars at home and abroad have carried out a large number of research concerning adolescent mental health, of which there still exists a lack of systematic combing and review. ObjectiveTo understand the status and development trend of research on adolescent mental health during the COVID-19 pandemic at home and abroad, and to grasp the current research hotspots and trends in this field, so as to provide references for relevant research and practice in the post-epidemic era. MethodsOn October 30, 2022, we searched through China Knowledge Network Infrastructure (CNKI) and Web of Science database, and the publishing time of articles to be retrieved was limited between December 1, 2019 and October 30, 2022. Excel and CiteSpace were used to perform visual analysis on these articles in terms of number, author, institution, country and keywords of the articles. ResultsA total of 7 608 articles were included. At home and abroad, the number of papers related to adolescent mental health generally increased at first and then decreased under the pandemic situation. Compared with foreign countries, the connection and cooperation among domestic scholars and institutions was not close enough. The top three countries in the number of English literature published were the United States, Britain and China, and those in intermediary center were Tunis, Cameroon and Anguilla. The parent-child relationship and mental health of teenagers during were much concerned by scholars both at home and abroad. With the passage of time, researchers at home and abroad had shifted their focus from only negative factors to positive factors. ConclusionChinese scholars or institutions need to strengthen more domestic and international exchanges and cooperation. Scholars from different countries can carry out cross-cultural study on research topics of common concern, and continue to explore the positive psychological changes of teenagers in the post-epidemic era.[Funded by National Social Science Foundation 2020 Education Youth Project of 13th Five-Year Plan (number, CHA200259)]
8.Methodology Study on Rapid Quality Control of Liuwei Dihuang Capsule by AOTF-near Infrared Spectroscopy
Yu BIAN ; Wenyue JIANG ; Meihui WANG ; Xuhua REN ; Jiale QU ; Min LI ; Lu GAO
China Pharmacy 2019;30(9):1203-1209
OBJECTIVE: To establish the method for the rapidly non-destructive quality control of Liuwei dihuang capsule. METHODS: AOTF-NIR spectrometry was adopted. Taking 80 batches of Liuwei dihuang capsule produced by a manufacturer in recent three years as samples, HPLC chromatogram was adopted to determine the contents of loganin, morroniside, paeonol, paeoniflorin and ursolic acid; the content of water was determined according to general principles stated in 2015 edition of Chinese Pharmacopeia (part Ⅰ). Taking 70 batches of samples as correction set, the partial least square method and the cross-validation algorithm were used to establish the NIR quantitative model of 6 indexes in Liuwei dihuang capsules with the Unscrambler quantitative analysis software. Taking residual 10 batches of samples as validation set, external validation was conducted for the model. RESULTS: The correlation coefficients (R2) of internal and external validation of loganin, morroniside, paeonol, paeoniflorin, the content of water quantitative model were all greater than 0.9; the correction of standand deviation (RMSEC) were 0.372 8, 0.025 4, 0.263 3, 0.288 5, 0.186 7 and 0.037 7; the prediction of standard deviation (RMSEP) were 0.462 2, 0.077 5, 0.472 1, 0.634 9, 0.293 4 and 0.206 9; the external verification showed that mean deviations of preclicted value to actual value were 6.04%, 6.05%, 5.87%, 6.97%, 5.62% and 4.83%, with the mean deviation less than 10%.CONCLUSIONS:The established method can achieve rapidly non-destructive analysis Liuwei dihuang capsule.