1.Discussion of factors influencing preclinical studies based on fecal bacteria transplantation in mice
Shiqi SUN ; Lu LIU ; Shuangyuan HU ; Yuyan WANG ; Mingsheng SUN ; Ling ZHAO
Acta Laboratorium Animalis Scientia Sinica 2024;32(1):100-117
Fecal microbiota transplantation(FMT)is a therapeutic approach that targets intestinal microorganisms by transplanting fecal microorganisms from healthy individuals into the gastrointestinal tract of diseased individuals,thus restoring the recipient's disordered gastrointestinal microbiota by restructuring the intestinal flora.However,the mechanism of action and adverse effects of FMT in different diseases have not yet been clarified,thus limiting its wide clinical application.Its use still relies on in-depth preclinical studies;however,highly inconsistent or incomplete experimental details provided in current reports,coupled with a lack of authoritative standards and recommendations,seriously affect the interpretation of the study findings and replication of the experimental procedures,as well as hindering the clinical translation of the result.We therefore review and discuss the key steps of recipient selection and graft sample collection,storage,graft material preparation,and grafting route,with the aim of improving the utilization of experimental animals,consumables,and labor,and providing method ological recommendations and references to achieve replicability and standardization of preclinical FMT studies.
2.Imaging features of peripapillary hyperreflective ovoid mass-like structure
Jing HU ; Lu HE ; Shiqi TANG
Chinese Journal of Experimental Ophthalmology 2024;42(9):858-861
Peripapillary hyperreflective ovoid mass-like structure (PHOMS) is a novel imaging feature newly defined in recent years in the study of optic disc drusen (ODD).In OCT images, it shows an oval hyper-reflective signal on the Bruch membrane around the optic papilla, ring or crescent non-fluorescence in autofluorescence, and light gray peripapillary elevations around the optic disc in non-red infrared images.There is no conclusive evidence as to whether PHOMS is a subtype or precursor of ODD.Histopathologically, PHOMS might correspond to the lateral bulging or herniation of distended axons into the peripapillary retina.Since there may be different pathological properties between PHOMS and ODD in histology, there are different imaging features in multimodal imaging.To make the diagnosis of ODD more accurate, the Optic Disc Drusen Studies Consortium recommends that PHOMS be distinguished from ODD.PHOMS is mainly differentiated from ODD and perioptic vessels on OCT.It can be seen in many diseases such as ODD, optic papilledema, non-arteritis anterior ischemic optic neuropathy, multiple sclerosis, central retinal vein occlusion, pediatric tilted disc syndrome, isolated optic neuritis and optic atrophy, and is an important cause of pseudopapilloedema in children.This article summarizes the origin, imaging features, differential diagnosis and related diseases of PHOMS, to increase domestic researchers' understanding of the structure of PHOMS, enhance the differential diagnosis between PHOMS and ODD, and provide a reference for clinical research and diagnosis.
3.Analysis of differentially expressed genes in visceral adipose tissue of patients with type 2 diabetes mellitus based on bioinformatics
Ying LI ; Jiaxiang LU ; Lu HE ; Xiaojie XIE ; Ren LIN ; Shiqi TANG ; Lijuan XU
Chinese Journal of Health Management 2024;18(12):910-915
Objective:To analyze the differentially expressed genes (DEGs) in visceral adipose tissue of patients with type 2 diabetes mellitus (T2DM) based on bioinformatics.Methods:The microarray dataset GSE78721 was downloaded from the Gene Expression Omnibus (GEO) database, including visceral fat samples data from 19 T2DM patients and 16 non-diabetic subjects. The analysis of transcriptomic profiling results from tissue samples was conducted, and a comparison between different groups of samples based on gender was performed. The online Xintao Academic Database was utilized for the analysis, employing the "limma" package in R language to filter DEGs. Subsequently, the DEGs were visualized, and Gene Ontology (GO) functional annotation along with Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis were carried out and visualized. Based on the Search Tool for the Retrieval of Interacting Genes/Proteins (STRING) database, a protein-protein interaction network (PPI) of DEGs was constructed and key differentially expressed genes were identified and visualized using Cytoscape software.Results:Analysis of visceral adipose tissue gene expression profiles revealed 168 DEGs (|log 2FC|≥1, P<0.05). In females, 42 mRNAs were up-regulated, 3 were down-regulated; in males, 105 were up-regulated, 37 were down-regulated, 19 genes were shared by the two groups. GO analysis linked DEGs to insulin-like growth factor receptor signaling and regulation, nutrient response, and leukocyte migration. KEGG analysis implicated extracellular matrix receptor interactions and leukocyte transendothelial migration. The PPI network unveiled 10 key genes, including COL1A1, COL1A2, TGFB3, PCOLCE, TIMP1, COL6A2, COMP, COL14A1, VCAM1 and THY1. Conclusion:Bioinformatics technology can effectively analyze and screen DEGs in visceral adipose tissue of T2DM patients, providing useful clues for further exploring its molecular mechanism and finding therapeutic targets.
4.Nipah virus: epidemiology, pathogenesis, treatment, and prevention.
Limei WANG ; Denghui LU ; Maosen YANG ; Shiqi CHAI ; Hong DU ; Hong JIANG
Frontiers of Medicine 2024;18(6):969-987
Nipah virus (NiV) is a zoonotic paramyxovirus that has recently emerged as a crucial public health issue. It can elicit severe encephalitis and respiratory diseases in animals and humans, leading to fatal outcomes, exhibiting a wide range of host species tropism, and directly transmitting from animals to humans or through an intermediate host. Human-to-human transmission associated with recurrent NiV outbreaks is a potential global health threat. Currently, the lack of effective therapeutics or licensed vaccines for NiV necessitates the primary utilization of supportive care. In this review, we summarize current knowledge of the various aspects of the NiV, including therapeutics, vaccines, and its biological characteristics, epidemiology, pathogenesis, and clinical features. The objective is to provide valuable information from scientific and clinical research and facilitate the formulation of strategies for preventing and controlling the NiV.
Animals
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Humans
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Disease Outbreaks/prevention & control*
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Henipavirus Infections/virology*
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Nipah Virus/pathogenicity*
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Viral Vaccines
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Zoonoses/virology*
5.Executive function in adolescent patients with major depressive episode with psychotic symptoms and childhood trauma
Shiqi SONG ; Jianbo LIU ; Mengxiao YAN ; Minsi ZHOU ; Ming GAO ; Wentai FENG ; Jianping LU
Sichuan Mental Health 2023;36(3):202-208
BackgroundThere are differences in executive function between major depressive episode patients with or without psychotic symptoms, and childhood trauma may affect the executive function of patients with major depressive episode. Previous research studies predominantly focused on adult patients with major depressive episode, with a lack of studies specifically focusing on adolescent patients with major depressive episode. ObjectiveTo investigate the differences in executive function among adolescent patients with major depressive episode, with or without psychotic symptoms and childhood trauma. MethodsA total of 112 hospitalized adolescent patients with major depressive episode who met the criteria of the International Classification of Diseases, tenth edition (ICD-10) were included in the study. The participants were recruited from the Department of Child and Adolescent Psychiatry, Shenzhen Kangning Hospital during the period from August 2020 to November 2021. Additionally, 27 healthy controls were recruited through public advertisements. The Cambridge Neuropsychological Test Automated Battery (CANTAB) was used to assess executive function through the administration of the Motor Screening Task (MOT), Spatial Working Memory(SWM) and Rapid Visual Information Processing (RVP) modules. Childhood Trauma Questionnaire-Short Form (CTQ-SF) was used to assess the trauma type. ResultsCompared with healthy controls, adolescent patients with major depressive episode had a longer mean delay (Z=-3.407, P=0.001) in the MOT task. In the SWM task, the patients had a higher total number of intergroup error responses (Z=-3.291, P=0.001), a higher total number of intragroup error responses (Z=-3.461, P=0.001), more total number of double error responses (Z=-3.218, P=0.001), a higher total error responses (Z=-3.312, P=0.001), higher strategy scores (Z=-2.437, P=0.015) and longer average delay time (Z=-2.055, P=0.040). In the RVP task, the patients had fewer hits (Z=-3.196, P=0.001), more misses (Z=-3.179, P=0.001), fewer rejections (Z=-2.772, P=0.006), lower hit probability (Z=-3.187, P=0.001) and lower A´ scores (Z=-3.070, P=0.002).Compared with adolescent patients with major depressive episode without psychotic symptoms, those with psychotic symptoms had a lower total number of double error responses (Z=-2.566, P=0.010) in SWM task. Compared with adolescent patients with major depressive episode who did not experience emotional neglect, those who experienced emotional neglect had longer average delay time (Z=-3.183, P=0.001) in MOT task, fewer total hits (Z=-2.445, P=0.014), more total missed reports (Z=-2.467, P=0.014), lower hit probability (Z=-2.445, P=0.014) and lower A´scores (Z=-2.089, P=0.037) in RVP task. Adolescent patients with major depressive episode who had experienced emotional abuse had longer average delay time in MOT task than those who had not experienced emotional abuse (Z=-2.552, P=0.011). ConclusionAdolescent patients with major depressive episode exhibit abnormalities in a majority of executive function domains. Specifically, those without psychotic symptoms and with childhood trauma demonstrate significantly impaired executive function. [Funded by Shenzhen Fund for Guangdong Provincial High-level Clinical Key Specialties (number, SZGS013), Basic and Applied Basic Research Fund of Guangdong Province (number, 2019A1515110047), Shenzhen Science and Technology Planning Project (number, JCYJ20190809155019338)]
6.Analysis on per capita expenses of physical examination and its related factors in health examination (management) institutions in 2019
Ren LIN ; Lu HE ; Shiqi TANG ; Lijuan XU
Chinese Journal of Health Management 2023;17(4):286-290
Objective:To investigate the per capita expenses of physical examination and its related factors in health examination (management) institutions in 2019.Methods:Using the census method, the basic information, including the name, address, nature, level and operation nature of the institutions, and per capita expenses of physical examination in provincial health examination (management) institutions in 2019 were collected by questionnaire survey. Rank sum test and Spearman correlation analysis were used to analyze the data.Results:In 2019, the top three provinces in terms of per capita expenses of physical examination were Shanghai, Inner Mongolia Autonomous Region and Beijing, with 612.00 yuan, 547.90 yuan and 528.83 yuan, respectively; Guizhou Province, Xinjiang Uygur Autonomous Region and Guangdong Province ranked the last three, with 255.25 yuan, 244.00 yuan and 235.10 yuan, respectively. There were significant differences in per capita expenses of physical examination among different health examination (management) institutions in different regions and of different institutional nature, institutional level and business nature (all P<0.05). The per capita expenses of physical examination was positively correlated with the local per capita health care expenditure, the proportion of local population aged 15-64 years and the proportion of local people with education of college and above ( r=0.465, 0.374 and 0.401, all P<0.05). Conclusions:There are differences in the per capita expenses of physical examination in health examination (management) institutions among different regions, institutional nature, institutional level and business nature in 2019, and it is related to the per capita health care expenditure, age and educational level of the local people.
7.Application of magnetic compression anastomosis to colorectal anastomosis and reconstruction
Jing LI ; Guifang LU ; Miaomiao ZHANG ; Shiqi LIU ; Xiaopeng YAN ; Feng MA ; Xiaoyang REN ; Xuejun SUN ; Yi LYU ; Shuixiang HE ; Mudan REN
Chinese Journal of Digestive Endoscopy 2023;40(5):397-400
Clinical cases treated by magnetic compression anastomosis (MCA) for different causes and types of intestinal stenosis/ atresia to successfully achieve intestinal recanalization were reviewed, so as to explore the clinical application of MCA. From May 2019 to August 2022, 4 patients underwent colorectal MCA for intestinal recanalization in the First Affiliated Hospital of Xi'an Jiaotong University and Northwest Women and Children's Hospital. All operations went well, and the intestinal anastomosis was recanalized. The magnetic ring was discharged in 7-15 days, and the postoperative colonoscopy or radiography showed that the anastomosis was intact. MCA can be used to treat different types of colorectal stenosis and atresia due to different reasons, and can also be used to assist intestinal anastomosis in colorectal surgery.
8.Visualization of mTOR Pathway Regulated by Traditional Chinese Medicine: A Bibliometric Analysis Based on Multiple Software
Xiaoshan HUI ; Shichao LU ; Yongmei LIU ; Shiqi WANG ; Siyuan ZHOU ; Jinsheng ZHANG ; Jie WANG
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(1):155-162
ObjectiveTo summarize the research progress of mammalian target of rapamycin (mTOR) pathway regulated by traditional Chinese medicine(TCM) and provide reference for visualization and quantitative analysis of related research based on multiple software linkage. MethodLiterature related to TCM regulation of mTOR pathway in Web of Science was taken as the research object. Citespace,VOSviewer,and carrort2 were used for biliometric analysis and visualization of the literature. ResultA total of 245 papers that met the requirements were retrieved,and the visual analysis showed that the papers presented a fluctuating increase year by year after 2010,and numerous research results emerged in 2018. China had the most publications. Institutions with a large number of publications were mainly in Beijing and Shanghai,and most of the regional cooperation was centered in Beijing and Nanjing. According to the research direction and focus,it was found that the intervention of TCM in mTOR pathway in recent years mainly concentrated on the anti-tumor,anti-apoptotic and anti-inflammatory aspects, and TCM interfered with mTOR pathway to regulate cell apoptosis,autophagy,proliferation,and death. AMP-activated protein kinase (AMPK) and phosphatidylinositol 3-kinases(PI3K)/protein kinase B(Akt)/mTOR pathway were the current and future research hotspots. ConclusionResearch on the regulation of mTOR pathway by TCM had a good prospect,and the in-depth study might provide new ideas and guidance for the treatment of cardiovascular diseases,tumor and other major diseases.
9.A multicenter study on human parainfluenza virus infections among children with community-acquired pneumonia from 2014 to 2020
Shiqi CAI ; Baoping XU ; Changchong LI ; Yun SUN ; Gen LU ; Rong JIN ; Yunxiao SHANG ; Yunlian ZHOU ; Ling CAO ; Aihuan CHEN ; Li DENG ; Yixiao BAO ; Limin NING ; Zhou FU ; Fang GU ; Shuilian YU ; Chunyan LIU ; Ju YIN ; Kunling SHEN ; Yun ZHU ; Zhengde XIE
Chinese Journal of Experimental and Clinical Virology 2023;37(5):472-479
Objective:To investigate the epidemiological and clinical characteristics of human parainfluenza viruses (HPIVs) infection among hospitalized children with community-acquired pneumonia (CAP) in China, and provide basic data for diagnosis, treatment and prevention of HPIVs infection.Methods:From November 2014 to February 2020, 5 448 hospitalized children with CAP were enrolled in 14 hospitals in 11 provinces and municipalities directly under the Central Government in southern China and northern China. Nasopharyngeal aspirates or throat swabs were collected, and the nucleic acids of 18 types respiratory viruses including HPIV1-4 were screened by suspension array technology. Demographic data and clinical information were collected for statistical analysis.Results:The total detection rate of HPIVs in 5 448 children with CAP was 8.83% (481/5 448), and the detection rate in males was higher than that in females (62.79% vs. 37.21%; χ2=0.000, P=0.992). The detection rate of HPIVs in 1~< 3 years age group was higher than that in other age groups, and the difference was statistically significant ( χ2=61.893, P<0.001). The detection rate of HPIVs in the northern region was higher than that in the southern region (9.02% vs 8.65%), but the difference was not statistically significant ( χ2=0.239, P=0.625). The prevalence of HPIV1-4 in northern and southern China was not completely same. HPIV1 was mainly prevalent in autumn in both northern and southern regions. HPIV2 was prevalent in summer in northern China, and the detection rate was low in southern China. HPIV3 reached its peak in both spring and summer in both northern and southern China, but its duration was longer in southern China than in northern China. HPIV4 is mainly popular in autumn in both southern China and northern China. Among 481 children infected with HPIVs, 58.42% (281/481) were infected with HPIV alone, and the main clinical manifestations were cough (90.75%) and fever (68.68%). Out of the HPIV-positive cases, 42.62% (205/481) were co-infected with another type of HPIV or a different virus, while 11.43% (55/481) had co-infections with two or more different viruses. HPIV3 was the most common type of co-infection with other viruses. HPIV3 infection accounted for the largest proportion (76.80%) in 47 HPIVs-positive children with severe pneumonia. Conclusions:HPIVs is one of the most important pathogens causing CAP in children in China, and children under 3 years of age are the main populations of HPIVs infection. The prevalence characteristics of all types of HPIVs in children in the north and south are not completely same. HPIV3 is the dominant type of HPIV infections and causes more severe diseases.
10.Changes of mitochondrial fission and fusion after myocardial injury in cardiac arrest rats
Mingdi CHEN ; Jue ZHANG ; Sipan WANG ; Peng YANG ; Shiqi LU ; Yi LI
Chinese Journal of Emergency Medicine 2022;31(1):31-36
Objective:To investigate the dynamic changes of mitochondrial fission and fusion in the heart of cardiac arrest (CA) rats after return of spontaneous circulation (ROSC), and to explore the role of mitochondrial fission and fusion in the myocardial injury after ROSC.Methods:Healthy male SD rats were randomly random number assigned into the post-resuscitation (PR) 4 h ( n=12), PR 24 h ( n=12), PR 72 h ( n=12), and sham groups ( n=6). The rat CA model was induced by asphyxia, and cardiopulmonary resuscitation (CPR) was performed 6 min after CA. The protein expressions of mitochondrial Drp1, Fis1, Mfn1, and Opa1 were determined by Western blot in each group at 4, 24 and 72 h after ROSC. The mRNA expressions of Drp1, Fis1, Mfn1, and Opa1 were determined by RT-PCR. Myocardial ATP content and mitochondrial respiratory function were measured. The histopathologic changes of myocardial tissue were observed under light microscope. One-way analysis of variance (ANOVA) was use to compare quantitative data, and LSD- t test was used for comparison between groups. Results:Compared with the sham group, the protein and mRNA expressions of Drp1 and Fis1 were increased (all P<0.05) and the protein and mRNA expressions of Mfn1 and Opa1 were decreased (all P<0.05) in the PR 4 h and PR 24 h groups. However, there were no statistical differences in the protein and mRNA expressions of Drp1, Fis1, Mfn1, and Opa1 in the PR 72 h group compared with the sham group (all P>0.05). Compared with the sham group, the levels of ATP content [(4.53±0.76) nmol/g protein vs. (8.57±0.44) nmol/g protein and (5.58±0.58) nmol/g protein vs. (8.57±0.44) nmol/g protein] and mitochondrial respiratory control rate [(2.47±0.38) vs. (3.45±0.32) and (2.97±0.24) vs. (3.45±0.32)] were obviously decreased in the PR 4 h and PR 24 h groups (all P<0.05). There were no statistically significant differences in the ATP content [(7.73±0.95) nmol/g protein vs. (8.57±0.44) nmol/g protein] and mitochondrial respiratory control ratio [(3.39±0.34) vs. (3.45±0.32)] between the PR 72 h group and the sham group (all P>0.05). The pathological damage of myocardial tissue was obvious in the PR 4 h group, and was improved significantly in the PR 72 h group. Conclusions:The imbalance of mitochondrial fission and fusion is probably involved in the pathological process of myocardial injury after ROSC, which may be related to mitochondrial dysfunction.

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