1.Improvement effects of fecal microbiota transplantation on chemotherapy-induced diarrhea in mice
Qiu-Yu YANG ; Meng-Tian TAN ; Jing BAI ; Xing REN ; Jun-Qi ZHANG ; Yong YANG ; Yu-Hang SUN ; Lei LI ; Ze-Xian FU
Medical Journal of Chinese People's Liberation Army 2025;50(3):261-268
Objective To investigate the improvement effects of homogeneous fecal microbiota transplantation(FMT)on chemotherapy-induced diarrhea(CID)in mice.Methods Fifteen C57BL/6N mice were divided into control group,CID model group and CID+FMT group according to the random number distribution and remainder grouping method,with 5 mice per group.Control group received no intervention,and their feces were used to prepare fecal bacteria suspension.CID model group was injected intraperitoneally with fluorouracil(65 mg/kg)for 5 consecutive days to construct the CID mouse model,followed by gavage with 0.1 ml of saline on alternate days.CID+FMT group was given 0.1 ml fecal bacteria suspension gavage on alternate days for one week,followed by intraperitoneal injection of fluorouracil(65 mg/kg)for 5 consecutive days to construct the CID mouse model,with the experiment ending on the 14th day.During the experiment,the mice's food intake and body weight were recorded.At the end of the experiment,the mice were euthanized with deep carbon dioxide anesthesia,and the mice colonic specimens from cecum to anus were collected for hematoxylin and eosin(HE)staining and histopathological examination.Fecal samples were collected for 16S rRNA gene sequencing.Shannon index,Simpson index and Chao1 algorithm were used to analyze the α-diversity species of the intestinal flora in each group of mice.Similarity analysis(Anosim)was used to perform non-parametric on the inter-group differences of intestinal flora among the mice.Linear discriminate analysis size effect(LEfSe)and nonmetric multidimensional scaling(NMDS)were employed to analyze the intestinal dominant flora and the similarity classification relationships in each group of mice.Results The colonic specimen's length from cecum to anus in CID model group was significantly shorter than that in control group(P<0.05),while there was no significant difference between CID+FMT group and CID model group(P>0.05).The weight of mice in CID model group decreased by 42.04%,while control group mice gained 10.24%,with a significant difference between the two groups(P<0.05).The weight of mice in CID+FMT group decreased by 8.12%,which was significantly improved compared to CID model group(P<0.05).HE staining results revealed the intestinal mucosal structure in CID model group was severely damaged,with atrophy and deformation,accompanied by inflammatory cell infiltration,and the pathological score was higher than that of control group(P<0.05).Compared with CID model group,the intestinal mucosal integrity and crypt cells in the CID+FMT group were improved,with less damage,and the pathological score was lower than that of CID model group,but the difference was not statistically significant(P>0.05).The α-diversity analysis showed that there were significant differences in the Shannon,Simpson and Chao1 indices among the three groups(P<0.05).ANOSIM and NMDS analysis revealed that the intestinal flora in CID+FMT group was closer to the normal intestinal flora compared to CID model group.LEfSe analysis showed that the intestinal flora in CID model group was enriched in famliy_Bacteroidaceae,and the intestinal flora in CID+FMT group was similar to that of control group,with an enrichenment of familiy_Enterobacteriaceae.Conclusion Homogeneous FMT can improve the abundance of intestinal flora in CID mice,making it more similar to normal intestinal flora,thereby protecting intestinal mucosa,reducing damage and alleviating the severity of CID.
2.Periodontitis exacerbates pulmonary hypertension by promoting IFNγ+T cell infiltration in mice
Meng XIAOQIAN ; Du LINJUAN ; Xu SHUO ; Zhou LUJUN ; Chen BOYAN ; Li YULIN ; Chen CHUMAO ; Ye HUILIN ; Zhang JUN ; Tian GUOCAI ; Bai XUEBING ; Dong TING ; Lin WENZHEN ; Sun MENGJUN ; Zhou KECONG ; Liu YAN ; Zhang WUCHANG ; Duan SHENGZHONG
International Journal of Oral Science 2024;16(2):359-369
Uncovering the risk factors of pulmonary hypertension and its mechanisms is crucial for the prevention and treatment of the disease.In the current study,we showed that experimental periodontitis,which was established by ligation of molars followed by orally smearing subgingival plaques from patients with periodontitis,exacerbated hypoxia-induced pulmonary hypertension in mice.Mechanistically,periodontitis dysregulated the pulmonary microbiota by promoting ectopic colonization and enrichment of oral bacteria in the lungs,contributing to pulmonary infiltration of interferon gamma positive(IFNγ+)T cells and aggravating the progression of pulmonary hypertension.In addition,we identified Prevotella zoogleoformans as the critical periodontitis-associated bacterium driving the exacerbation of pulmonary hypertension by periodontitis,and the exacerbation was potently ameliorated by both cervical lymph node excision and IFNγ neutralizing antibodies.Our study suggests a proof of concept that the combined prevention and treatment of periodontitis and pulmonary hypertension are necessary.
3.Exploration on the molecular mechanism of Sanhuang Yishen Capsules for the treatment of diabetes based on network pharmacology and experimental verification
Xiaofeng MENG ; Hailong BAI ; Yun BIAN ; Aizu ZHANG ; Fengsheng TIAN ; Ronggang CUI ; Yang SU ; Juan LI
International Journal of Traditional Chinese Medicine 2024;46(10):1330-1337
Objective:To explore the material basis and potential mechanism of Sanhuang Yishen Capsules in the treatment of diabetes through network pharmacology, molecular docking and experimental verification.Methods:The active components and targets of Sanhuang Yishhen Capsules were screened using China Natural product chemical composition database and SymMap database, and the related targets of T2DM were screened by GeneCards database. The "Chinese materia medica-active component-target" network was constructed, and the intersection genes were enriched by GO and KEGG using R language. Key active components were selected for molecular docking verification with potential core targets. 60 rats were divided into normal group, model group, and Sanhuang Yishen Capsules group according to random number table method, with 15 rats in each group. In addition to the normal group, the diabetic rat model was prepared in the other groups, and the corresponding drugs were intragastric in each group for 8 weeks. The levels of fasting blood glucose (FBG), fasting insulin (FINS) and insulin resistance index (HOMA-IR) were measured by radioimmunoassay. Western blotting was used to detect protein expressions of epidermal growth factor receptor (EGFR), epidermal growth factor (EGF), Akt serine/threonine kinase 1 (AKT1), recombinant tumor protein p53 (TP53), and recombinant caspase 3 (CASP3).Results:A total of 160 active components and 298 targets of Sanhuang Yishen Capsules, 2194 targets related to T2DM, and 166 intersection targets were obtained. GO and KEGG analyzed a series of biological reaction processes mainly involved in signal transduction, oxidative stress, apoptosis, etc., and mainly involved in the regulation of P13K/Akt, P53, CASP3 and other targets. The results of molecular docking showed that the main active components obtained by screening had strong binding with the target. Compared with model group, FBG, FINS, HOMA-IR, TP53 and CASP3 in Sanhuang Yishen Capsules group decreased ( P<0.05), EGFR, EGF and Akt1 proteins increased ( P<0.05). Conclusion:The mechanism of Sanhuang Yishen Capsules for the treatment of may be related to the regulation of EGF/EGFR/P13K/Akt signaling pathway, TP53 signaling pathway, CASP3 signaling pathway, PPARG signaling pathway, ESR1 signaling pathway, PTGS2 signaling pathway, CAT signaling pathway and CTNNB1 signaling pathway.
4.The effect of behavioral habits on the recovery of spinal cord function for patients with cervical spondylotic myelopathy after expansive open-door laminoplasty
Zhikang TIAN ; Cheng LI ; Sheng GAO ; Luyue BAI ; Xiao LIANG ; Chunyang MENG
Chinese Journal of Behavioral Medicine and Brain Science 2024;33(11):1034-1039
Objective:To explore the effect of behavioral habits on the recovery of spinal cord function in patients with cervical spondylotic myelopathy after expansive open-door laminoplasty(ELAP).Methods:Retrospective analysis of clinical data of 183 patients with cervical spondylotic myelopathy who underwent ELAP at the Spinal Surgery Department of Jining Medical University Affiliated Hospital, from February 2019 to October 2022, with complete follow-up information. General clinical data of patients were collected. The patients were followed up at 3 months, 6 months and 12 months after surgery with the modified standard MacNab.The JOA score was used to evaluate the recovery of motor and sensory functions in patients before and 12 months after surgery. The recovery rate of spinal cord function was calculated based on the JOA score, and patients were divided into two groups: the group with good therapeutic effect ( n=143, recovery rate ≥ 50%) and the group with poor therapeutic effect ( n=40, recovery rate<50%). Data statistics were conducted using SPSS 20.0 software for chi-square test, rank sum test, t-test, and Logistic regression analysis. Results:There were significant differences in age ( t=-3.252, P<0.01), smoking ( χ2=21.503, P<0.01), body mass index(BMI) ( t=-5.885, P<0.01), hypertension ( χ2=20.263, P<0.01), coronary heart disease ( χ2=13.272, P<0.01), hospitalization time ( t=-2.278, P=0.02), desk and screen time ( t=-6.589, P<0.01), and frequency of rehabilitation exercise ( χ2=10.927, P<0.01) between the group with good therapeutic effect and the group with poor therapeutic effect. Further multivariate Logistic regression analysis showed that smoking ( B=2.402, OR=11.046, 95% CI=2.334-52.285, P<0.05), high BMI ( B=0.341, OR=1.406, 95% CI=1.076-1.837, P<0.05), hypertension ( B=2.238, OR=9.370, 95% CI=2.153-40.790, P<0.05), long desk and screen time ( B=0.961, OR=2.613, 95% CI=1.540-4.435, P<0.05) and low frequency of rehabilitation exercise ( B=-1.039, OR=0.354, 95% CI=0.201-0.623, P<0.05) were risk factors for spinal cord function recovery in patients with cervical spondylotic myelopathy after ELAP( P<0.05). Conclusion:Smoking, high BMI, hypertension, long desk and screen time, and low frequency of rehabilitation exercise are not adverse to the recovery of neurological function in patients with cervical spondylotic myelopathy after ELAP.
5.Mechanism of Zhenwu Decoction in improving renal inflammatory injury in mice with DN of spleen-kidney Yang deficiency syndrome by regulating ROCK/IKK/NF-κB pathway.
Yu-Qiu JIN ; Guang-Shun CHEN ; Min BAI ; Zhe ZHAO ; Yan-Xu CHEN ; Meng-Yuan TIAN ; Jia-Lian CHEN ; Qing-Sheng WANG ; Zhen-Hua LIU
China Journal of Chinese Materia Medica 2023;48(18):5041-5048
To investigate the intervention effect and mechanism of Zhenwu Decoction on diabetic nephropathy(DN) mice of spleen-kidney Yang deficiency syndrome based on the Rho-associated coiled-coil kinase(ROCK)/IκB kinase(IKK)/nuclear factor-κB(NF-κB) pathway. Ninety-five 7-week-old db/db male mice and 25 7-week-old db/m male mice were fed adaptively for one week. The DN model of spleen-kidney Yang deficiency syndrome was induced by Dahuang Decoction combined with hydrocortisone by gavage, and then the model was evaluated. After modeling, they were randomly divided into a model group, high-dose, medium-dose, and low-dose Zhenwu Decoction groups(33.8, 16.9, and 8.45 g·kg~(-1)·d~(-1)), and an irbesartan group(25 mg·kg~(-1)·d~(-1)), with at least 15 animals in each group. The intervention lasted for eight weeks. After the intervention, body weight and food intake were measured. Serum crea-tinine(Scr), blood urea nitrogen(BUN), fasting blood glucose(FBG), urinary albumin(uALb), and urine creatinine(Ucr) were determined. The uALb/Ucr ratio(ACR) and 24 h urinary protein(UTP) were calculated. Renal pathological morphology was evaluated by HE staining and Masson staining. The levels of key molecular proteins in the ROCK/IKK/NF-κB pathway were detected by Western blot. Enzyme-linked immunosorbent assay(ELISA) was used to detect interleukin-1β(IL-1β), interleukin-6(IL-6), interleukin-8(IL-8), interleukin-10(IL-10), and tumor necrosis factor-α(TNF-α). Compared with the blank group, the model group showed increased content of BUN, uALb, and SCr, increased values of 24 h UTP and ACR, decreased content of Ucr(P<0.05), enlarged glomeruli, thickened basement membrane, mesangial matrix proliferation, inflammatory cell infiltration, and collagen fiber deposition. The protein expression of ROCK1, ROCK2, IKK, NF-κB, phosphorylated IKK(p-IKK), phosphorylated NF-κB(p-NF-κB), and phosphorylated inhibitor of NF-κB(p-IκB) increased(P<0.05), while the protein expression of inhibitor of NF-κB(IκB) decreased(P<0.05). The levels of inflammatory factors IL-1β, IL-6, IL-8, and TNF-α increased(P<0.05), while the level of IL-10 decreased(P<0.05). Compared with the model group, the groups with drug treatment showed decreased levels of BUN, uALb, SCr, 24 h UTP, and ACR, increased level of Ucr(P<0.05), and improved renal pathological status to varying degrees. The high-and medium-dose Zhenwu Decoction groups and the irbesartan group showed reduced protein expression of ROCK1, ROCK2, IKK, NF-κB, p-IKK, p-NF-κB, and p-IκB in the kidneys(P<0.05), increased protein expression of IκB(P<0.05), decreased levels of serum inflammatory factors IL-1β, IL-6, IL-8, and TNF-α(P<0.05), and increased level of IL-10(P<0.05). Zhenwu Decoction can significantly improve renal function and renal pathological damage in DN mice of spleen-kidney Yang deficiency syndrome, and its specific mechanism may be related to the inhibition of inflammatory response by down-regulating the expression of key molecules in the ROCK/IKK/NF-κB pathway in the kidney.
Mice
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Male
;
Animals
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NF-kappa B/metabolism*
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Interleukin-8
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Interleukin-10
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Tumor Necrosis Factor-alpha/metabolism*
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Interleukin-6
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I-kappa B Kinase
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Spleen
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Irbesartan
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Uridine Triphosphate
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Yang Deficiency/drug therapy*
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Kidney/pathology*
6.Discussion on "sugar needle - comfortable acupuncture and moxibustion".
Tao HUANG ; Xiang-Hong JING ; Neng-Gui XU ; Qiang WU ; Yong-Ming LI ; Can-Hui LI ; Ye-Meng CHEN ; Wei-Dong LU ; Yi-Fan YANG ; Tian-Jun WANG ; Shao-Bai WANG
Chinese Acupuncture & Moxibustion 2023;43(3):341-344
The cases of feeling comfort during acupuncture and moxibustion treatment in literature were summarized and its biological basis was explored. A simple classification of comfort was made, and the importance of obtaining comfort in acupuncture treatment was pointed out. Considering the pursuit of less pain and harmlessness in modern clinical treatment, sugar needle should be advocated and popularized in current clinical practice of acupuncture and moxibustion.
Sugars
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Moxibustion
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Acupuncture Therapy
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Emotions
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Needles
7.External rhinoplasty based on the classification of alar retraction associating with exposure of the nostrils.
Xian Cheng WANG ; Yi Wen DENG ; Yang SUN ; Xian Xi MENG ; Xiang XIONG ; Bai Rong FANG ; Xiao Fang LI ; Kai YANG ; Quan Ding YAN ; Yi TIAN
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2023;58(2):126-132
Objective: To introduce a classification of alar retraction, and to discuss the therapeutic strategy of alar retraction with cartilage graft and the satisfaction evaluation of patients after operation. Methods: A retrospective analysis was performed on 88 patients with alar retraction admitted to the Department of Plastic and Aesthetic (Burn) Surgery, the Second Xiangya Hospital of Central South University from January 2015 to December 2020, including 20 males and 68 females, aged 20 to 48 years, with an average age of 28.98 years. All patients underwent external rhinoplasty according to a series of treatment plans determined by the classification of alar retraction based on nostril exposure. Visual Analogue Scale (VAS) and Rhinoplasty Outcomes Evaluation (ROE) were used to conduct satisfaction survey before and 12 months after operation. Wilcoxon signed-rank test was used to analyze patient satisfaction. Results: A total of 88 patients were included in this study. According to the classification of alar retraction based on nostril exposure, 45 cases were mild, 23 cases were moderate, and 20 cases were severe. There were 16 cases of unilateral and 72 cases of bilateral alar retraction. The patients were followed up for 12 to 18 months, with an average of 13.37 months. The VAS score and ROE score after each type of surgery were higher than those before surgery, with statistically significant (all P<0.05). Among them, the difference in VAS score (6.75±1.29) and in ROE satisfaction (67.70±7.38) of patients with severe alar retraction were the most significant improvement. Conclusion: The classification of alar retraction based on nostril exposure in the frontal view can comprehensively evaluate the severity of alar retraction, and makes the treatment algorithms systematic and comprehensive. The satisfaction of patients is relatively high.
Male
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Female
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Humans
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Adult
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Rhinoplasty
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Retrospective Studies
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Patient Satisfaction
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Treatment Outcome
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Esthetics
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Nose/surgery*
8.Predictive value of left ventricular ejection fraction reserve assessed by SPECT G-MPI for major adverse cardiovascular event in patients with coronary artery disease.
Yi Han ZHOU ; Yao LU ; Jing Jing MENG ; Tian Tian MOU ; Yu Jie BAI ; Shuang ZHANG ; Ya Qi ZHENG ; Qiu Ju DENG ; Jian JIAO ; Zhi CHANG ; Xiao Fen XIE ; Ming Kai YUN ; Hong Zhi MI ; Xiang LI ; Xiao Li ZHANG
Chinese Journal of Cardiology 2023;51(6):626-632
Objective: To evaluate the prognostic value of left ventricular ejection fraction (LVEF) reserve assessed by gated SPECT myocardial perfusion imaging (SPECT G-MPI) for major adverse cardiovascular event (MACE) in patients with coronary artery disease. Methods: This is a retrospective cohort study. From January 2017 to December 2019, patients with coronary artery disease and confirmed myocardial ischemia by stress and rest SPECT G-MPI, and underwent coronary angiography within 3 months were enrolled. The sum stress score (SSS) and sum resting score (SRS) were analyzed by the standard 17-segment model, and the sum difference score (SDS, SDS=SSS-SRS) was calculated. The LVEF at stress and rest were analyzed by 4DM software. The LVEF reserve (ΔLVEF) was calculated (ΔLVEF=stress LVEF-rest LVEF). The primary endpoint was MACE, which was obtained by reviewing the medical record system or by telephone follow-up once every twelve months. Patients were divided into MACE-free and MACE groups. Spearman correlation analysis was used to analyze the correlation between ΔLVEF and all MPI parameters. Cox regression analysis was used to analyze the independent factors of MACE, and the optimal SDS cutoff value for predicting MACE was determined by receiver operating characteristic curve (ROC). Kaplan-Meier survival curves were plotted to compare the difference in the incidence of MACE between different SDS groups and different ΔLVEF groups. Results: A total of 164 patients with coronary artery disease [120 male; age (58.6±10.7) years] were included. The average follow-up time was (26.5±10.4) months, and a total of 30 MACE were recorded during follow-up. Multivariate Cox regression analysis showed that SDS (HR=1.069, 95%CI: 1.005-1.137, P=0.035) and ΔLVEF (HR=0.935, 95%CI: 0.878-0.995, P=0.034) were independent predictors of MACE. According to ROC curve analysis, the optimal cut-off to predict MACE was a SDS of 5.5 with an area under the curve of 0.63 (P=0.022). Survival analysis showed that the incidence of MACE was significantly higher in the SDS≥5.5 group than in the SDS<5.5 group (27.6% vs. 13.2%, P=0.019), but the incidence of MACE was significantly lower in the ΔLVEF≥0 group than in theΔLVEF<0 group (11.0% vs. 25.6%, P=0.022). Conclusions: LVEF reserve (ΔLVEF) assessed by SPECT G-MPI serves as an independent protective factor for MACE, while SDS is an independent risk predictor in patients with coronary artery disease. SPECT G-MPI is valuable for risk stratification by assessing myocardial ischemia and LVEF.
Humans
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Male
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Middle Aged
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Aged
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Coronary Artery Disease/diagnostic imaging*
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Stroke Volume
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Myocardial Perfusion Imaging
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Retrospective Studies
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Ventricular Function, Left
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Myocardial Ischemia
9.Comparative study on establishing an immune tolerance model for allergic conjunctivitis in mice with different methods
Meng-Tian BAI ; Yun LI ; Zhu-Lin HU
International Eye Science 2022;22(10):1615-1620
AIM:To establish an immune tolerance model for allergic conjunctivitis in newborn mice with different methods and observe the impact of environmental factors on allergic conjunctivitis in early life.METHOD: A total of 50 Balb/c newborn mice were randomly divided into blank control group, ovalbumin(OVA)+subcutaneous injection group, OVA+nebulized inhalation group, OVA+gastric group, ragweed pollen(RW)+subcutaneous injection group, RW+nebulized inhalation group, RW+gastric group, house dust mite(HDM)+subcutaneous injection group, HDM+nebulized inhalation group, HDM+intragastric group(n=5 animals/group). Except for the blank control group, mice in each group were individually exposed to the corresponding antigens to induce immune tolerance early in life and stimulated with the corresponding antigens in adulthood. The ocular surface was visualized by anterior segment photography. The relative expression level of conjunctival RANTES and IL-17 mRNA was measured by RT-qPCR and serum IL-17 concentration was measured by ELISA.RESULTS: Compared with the blank control group, the relative expression level of conjunctiva IL-17 mRNA in RW+gastric group was the highest, and it was the lowest in RW+subcutaneous group(all P<0.05). The relative expression level of conjunctiva RANTES mRNA was the highest in RW+gastric group(P<0.001). Compared with the blank control group, the serum concentration of IL-17 was increased in all treatment groups except OVA+nebulizer group and RW+subcutaneous group(P<0.05).CONCLUSION: The immune tolerance of allergic conjunctivitis induced by subcutaneous injection of antigen was the most suitable method in the early life of mice.
10.Epidemiological characteristics of COVID-19 epidemic in Ejina banner, Inner Mongolia Autonomous Region, October 2021.
Hui LI ; Wen Rui WANG ; Meng Guang FAN ; Bo Xi LIU ; Xiao Feng JIANG ; Xiao Ling TIAN ; Yun Feng XI ; Ru Yu BAI ; Fu Li CHI ; Sheng Mei YANG
Chinese Journal of Epidemiology 2022;43(2):189-194
Objective: To understand the epidemiological characteristics of COVID-19 epidemic in Ejina banner, Inner Mongolia, in October 2021 and provide evidence for the improvement of COVID-19 prevention and control. Methods: The information about the time, area and population distributions of COVID-19 cases in Ejina before November 13, 2021 and the gene sequencing result of the isolates were collected for a statistical descriptive analysis. Results: The first COVID-19 case in Ejina occurred on 7 October, 2021. A total of 164 COVID-19 cases were reported from October 19 to November 12. Most cases were distributed in 6 communities in Darahub (156 cases, 95.12%). The result of full gene sequencing of the isolates indicted that the pathogen was Delta variant (B.1.617.2). The male to female ratio of the cases was 1.3∶1. The age of cases ranged from 1 to 85 years, and the cases aged 20-59 years accounted for 78.66%. The main clinical symptoms were sore throat (91 cases, 91.92%), cough (49 cases, 49.49%) and fever (23 cases, 23.23%). Most cases were ordinary ones (81 cases, 49.39%) and mild ones (68 cases, 41.46%). The cases were mainly detected at the isolation points (84 cases, 51.22%) and through population based nucleic acid testing (62 cases, 37.80%). The basic reproduction number (R0) of COVID-19 was 5.3, the average incubation period was 3.9 days. The local government rapidly started Ⅳ level emergency response and conducted 10 rounds of nucleic acid tests. The transferring of travelers reduced the risk for the further spread of COVID-19 in Ejina. Conclusions: The epidemic of COVID-19 in Ejina characterized by strong transmission, short incubation period, herd susceptibility and case clustering. Delta variant (B.1.617.2) was the pathogen, which might be imported from Zeke port. Comprehensive prevention and control measures, such as closed-loop management and vaccination, should be continued. The successful transferring of the patients and travelers provided evidence for the effective and precise prevention and control of COVID-19 in a routine manner.
Adolescent
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Adult
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Aged
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Aged, 80 and over
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COVID-19
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Child
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Child, Preschool
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China/epidemiology*
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Epidemics
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Female
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Humans
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Infant
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Male
;
Middle Aged
;
SARS-CoV-2
;
Young Adult

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