1.Effect of Yifei Jianpi Prescription on Lipopolysaccharide-induced Lung Immune Inflammatory Response in Rats Based on STAT1/IRF3 Pathway
Hongjuan YANG ; Yaru YANG ; Yujie YANG ; Zhongbo ZHU ; Quan MA ; Yanlin WU ; Hongmei LI ; Xuhui ZHANG ; Xiping LIU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(1):146-155
ObjectiveTo observe the effect of Yifei Jianpi prescription on the of signal transducer and activator of transcription protein 1 (STAT1)/interferon regulatory factor 3 (IRF3) signaling pathway in a pneumonia model induced by lipopolysaccharide (LPS) and to explore the mechanism of Yifei Jianpi prescription in improving lung immune and inflammatory responses. MethodsSixty male SPF SD rats were used in this study. Ten rats were randomly assigned to the normal control group, and the remaining 50 were instilled with LPS in the trachea to establish a pneumonia model. After successful modeling, the rats were randomly divided into the model group, dexamethasone group (0.5 mg·kg-1), and Yifei Jianpi prescription high-dose (12 mg·kg-1), medium-dose (6 mg·kg-1), and low-dose (3 mg·kg-1) groups, with 10 rats in each group. Treatment was administered once daily, and the normal control and model groups received the same volume of normal saline. After 14 days, flow cytometry was used to detect the classification of whole blood lymphocytes. Enzyme-linked immunosorbent assay (ELISA) was used to measure serum levels of immunoglobulin G (IgG), immunoglobulin A (IgA), immunoglobulin M (IgM), and the content of tumor necrosis factor-α (TNF-α), interleukin-8 (IL-8), interleukin-6 (IL-6), and interleukin-10 (IL-10) in alveolar lavage fluid (BALF). Hematoxylin-eosin (HE) staining was used to observe lung tissue pathology and score the damage. Thymus weight, spleen weight, and wet-to-dry weight ratio (W/D) were recorded. Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR) was used to detect the mRNA expression of STAT1, IRF3, IL-6, and interferon-alpha (IFN-α) in lung tissues, while Western blot was performed to assess the protein expression of STAT1, IRF3, IL-6, and IFN-α. ResultsCompared with the normal control group, the model group showed significantly increased proportion of B lymphocytes in peripheral blood, decreased proportions of NK cells and CD4+/CD8+ (P<0.05, P<0.01), decreased serum levels of IgG and IgA, significantly increased IgM levels (P<0.01), significantly elevated content of TNF-α, IL-6, and IL-8 in BALF, and significantly decreased IL-10 levels (P<0.01). Lung tissue damage was evident, with significant increases in thymus and spleen weights and a higher W/D ratio (P<0.01). The mRNA and protein expression of STAT1, IRF3, IFN-α, and IL-6 in lung tissues was significantly upregulated (P<0.05,P<0.01). Compared with the model group, the Yifei Jianpi prescription groups showed significantly reduced proportions of B lymphocytes in peripheral blood, increased proportions of NK cells and CD4+/CD8+ ratios (P<0.05, P<0.01), significantly increased serum levels of IgG and IgA, significantly decreased IgM levels (P<0.05, P<0.01), significantly reduced levels of TNF-α, IL-6, and IL-8 in BALF, and significantly increased IL-10 levels (P<0.01). Lung tissue damage was alleviated, thymus and spleen weights were significantly reduced, and the W/D ratio was markedly decreased (P<0.01). The mRNA and protein expression of STAT1, IRF3, IFN-α, and IL-6 in lung tissues was significantly downregulated (P<0.05, P<0.01). ConclusionYifei Jianpi prescription can alleviate lung tissue damage and improve immune and inflammatory responses in LPS-induced pneumonia rats. The mechanism may be related to the inhibition of STAT1/IRF3 signaling pathway activation.
2.Mechanism of 1,25(OH)2D3 improving liver inflammation in a rat model of nonalcoholic steatohepatitis induced by choline-deficient L-amino acid-defined diet
Haiyang ZHU ; Jingshu CUI ; Liu YANG ; Mengting ZHOU ; Jian TONG ; Hongmei HAN
Journal of Clinical Hepatology 2025;41(2):254-262
ObjectiveTo investigate the effect of 1,25(OH)2D3 on the level of peroxisome proliferator-activated receptor-γ (PPAR-γ) in the liver, the phenotype of hepatic macrophages, and liver inflammation in a rat model of nonalcoholic steatohepatitis (NASH), as well as the mechanism of 1,25(OH)2D3 improving liver inflammation. MethodsAfter 1 week of adaptive feeding, 24 specific pathogen-free Wistar rats were randomly divided into normal group [choline-supplemented L-amino acid-defined (CSAA) diet], normal+1,25(OH)2D3 group [CSAA diet+1,25(OH)2D3], model group [choline-deficient L-amino acid-defined diet (CDAA) diet], and model+1,25(OH)2D3 group [CDAA diet+1,25(OH)2D3], with 6 rats in each group. The dose of 1,25(OH)2D3 was 5 μg/kg for intraperitoneal injection twice a week for 12 weeks. The serum levels of aspartate aminotransferase (AST) and alanine aminotransferase (ALT) were measured, liver histopathology was observed, and SAF score was assessed. M1 hepatic macrophages and M2 hepatic macrophages were measured to analyze in the change in the phenotype of hepatic macrophages, and ELISA was used to measure the levels of tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), interleukin-4 (IL-4), and interleukin-10 (IL-10) in liver tissue, and qPCR was used to measure the mRNA level of PPAR-γ. The two-factor analysis of variance was use for comparison between groups, and the least significant difference t-test was used for further comparison; the Pearson method was used for correlation analysis. ResultsCompared with the normal group, the model rats with CDAA diet-induced NASH had significant increases in the serum levels of AST and ALT (P=0.019 and P<0.001), the SAF score of liver histopathology (P<0.001), the level of M1 hepatic macrophages (P<0.001), and the ratio of M1 and M2 hepatic macrophages (P<0.001), as well as a significant increase in the level of TNF-α (P<0.001) and a significant reduction in the level of IL-4 in liver tissue (P=0.025). The 1,25(OH)2D3 group had significant reductions in the serum levels of ALT (P<0.001), the SAF score of liver histopathology (P<0.001), the level of M1 hepatic macrophages (P<0.001), and the ratio of M1 and M2 hepatic macrophages (P=0.001), the level of IL-1β (P<0.001) and a significant increase in the level of M2 hepatic macrophages (P=0.017), the level of IL-10 (P=0.039), the level of IL-4 (P<0.001), the level of PPAR-γ (P=0.016). There were significant interactions between CDAA diet-induced NASH model and 1,25(OH)2D3 in serum the levels of AST and ALT (P=0.007 and P=0.008), the SAF scores of liver histopathology (P<0.001), the level of M1 hepatic macrophages (P<0.001), the level of M2 hepatic macrophages (P=0.008), the ratio of M1 and M2 of hepatic macrophages (P=0.005), the level of TNF-α (P<0.001), the level of IL-10 (P=0.038), the level of IL-4 (P<0.001) and the level of PPAR-γ (P=0.009). The correlation analysis showed that PPAR-γ was negatively correlated with the ratio of M1 and M2 hepatic macrophages (r=-0.415, P=0.044) and was positively correlated with M2 hepatic macrophages (r=0.435, P=0.033), IL-10 (r=0.433, P=0.035), and IL-4 (r=0.532, P=0.007). ConclusionThis study shows that 1,25(OH)2D3 improves liver inflammation in NASH by activating PPAR-γ to regulate the phenotypic transformation of hepatic macrophages.
3.Exploration and Reflection on the Construction of Pre-admission Processes in Public Hospitals
Guojie ZHANG ; Hongmei ZHANG ; Qinghua BAI ; Liluan YOU ; Wei ZHANG ; Xueqin SUN ; Jinjin GAO ; Zheng CHEN ; Weiguo ZHU ; Qing CHANG
Medical Journal of Peking Union Medical College Hospital 2025;16(5):1185-1192
Pre-admission is a critical initiative to optimize medical service processes and alleviate the challenge of "difficult access to healthcare. "However, there is currently a lack of standardized protocols for pre-admission procedures. This study aims to systematically analyze key nodes and risk factors in pre-admission process design and propose optimization strategies, providing a foundation for policy formulation and hospital practices. By constructing a "forward-reverse" dual-process model of pre-admission and identifying risk points based on stakeholder theory (patients, hospitals, healthcare administration, and insurance), the study reveals that while pre-admission can reduce the average length of stay, improve bed turnover rates, and enhance patient satisfaction, it also presents risks such as cross-period financial settlement, challenges in insurance policy adaptability, demands for information system integration, and the need for defining medical safety boundaries. To optimize the pre-admission process and mitigate these risks, this study explores framework improvements in areas including eligibility criteria, mode selection, cost settlement, transition between pre-admission and inpatient status, and cancellation of pre-admission, offering practical guidance for public hospitals. The authors argue that pre-admission requires tripartite collaboration among hospitals, insurers, and healthcare administrations: hospitals should establish top-level design, continuously refine processes, and implement dynamic risk assessment mechanisms; insurance providers should support cross-period settlement policies; and healthcare administrations should issue guiding policies or standardized protocols. Through multi-department coordination and collaborative efforts, the optimization and innovation of pre-admission processes can be advanced, ultimately delivering more efficient and convenient healthcare experiences for patients.
4.Expert consensus on the diagnosis and treatment of cemental tear.
Ye LIANG ; Hongrui LIU ; Chengjia XIE ; Yang YU ; Jinlong SHAO ; Chunxu LV ; Wenyan KANG ; Fuhua YAN ; Yaping PAN ; Faming CHEN ; Yan XU ; Zuomin WANG ; Yao SUN ; Ang LI ; Lili CHEN ; Qingxian LUAN ; Chuanjiang ZHAO ; Zhengguo CAO ; Yi LIU ; Jiang SUN ; Zhongchen SONG ; Lei ZHAO ; Li LIN ; Peihui DING ; Weilian SUN ; Jun WANG ; Jiang LIN ; Guangxun ZHU ; Qi ZHANG ; Lijun LUO ; Jiayin DENG ; Yihuai PAN ; Jin ZHAO ; Aimei SONG ; Hongmei GUO ; Jin ZHANG ; Pingping CUI ; Song GE ; Rui ZHANG ; Xiuyun REN ; Shengbin HUANG ; Xi WEI ; Lihong QIU ; Jing DENG ; Keqing PAN ; Dandan MA ; Hongyu ZHAO ; Dong CHEN ; Liangjun ZHONG ; Gang DING ; Wu CHEN ; Quanchen XU ; Xiaoyu SUN ; Lingqian DU ; Ling LI ; Yijia WANG ; Xiaoyuan LI ; Qiang CHEN ; Hui WANG ; Zheng ZHANG ; Mengmeng LIU ; Chengfei ZHANG ; Xuedong ZHOU ; Shaohua GE
International Journal of Oral Science 2025;17(1):61-61
Cemental tear is a rare and indetectable condition unless obvious clinical signs present with the involvement of surrounding periodontal and periapical tissues. Due to its clinical manifestations similar to common dental issues, such as vertical root fracture, primary endodontic diseases, and periodontal diseases, as well as the low awareness of cemental tear for clinicians, misdiagnosis often occurs. The critical principle for cemental tear treatment is to remove torn fragments, and overlooking fragments leads to futile therapy, which could deteriorate the conditions of the affected teeth. Therefore, accurate diagnosis and subsequent appropriate interventions are vital for managing cemental tear. Novel diagnostic tools, including cone-beam computed tomography (CBCT), microscopes, and enamel matrix derivatives, have improved early detection and management, enhancing tooth retention. The implementation of standardized diagnostic criteria and treatment protocols, combined with improved clinical awareness among dental professionals, serves to mitigate risks of diagnostic errors and suboptimal therapeutic interventions. This expert consensus reviewed the epidemiology, pathogenesis, potential predisposing factors, clinical manifestations, diagnosis, differential diagnosis, treatment, and prognosis of cemental tear, aiming to provide a clinical guideline and facilitate clinicians to have a better understanding of cemental tear.
Humans
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Dental Cementum/injuries*
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Consensus
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Diagnosis, Differential
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Cone-Beam Computed Tomography
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Tooth Fractures/therapy*
5.Behavioral Assessment and Drug Treatment of Apathy in Dementia in Traditional Chinese Medicine: A Review
Lijinchuan DONG ; Qing YANG ; Xiaoxin ZHU ; Qi LI ; Bo PENG ; Hongmei LI ; Weiyan CAI ; Ying CHEN
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(23):308-317
Dementia in traditional Chinese medicine (TCM) mainly presents amnesia and dullness. Alzheimer's disease and vascular dementia belong to the category of dementia in TCM. These progressive neurological diseases have a complex etiology and a long course, and the drugs that can reverse the disease course remain to be developed. Therefore, early intervention plays a vital role in delaying the disease progression. Apathy refers to a lack of motivation that leads to the attenuation or disappearance of goal-directed behaviors, cognitive functions, and emotional responses. Clinical studies have suggested that apathy exists in the early stage of a variety of neurodegenerative diseases, being one of the key symptoms to the early diagnosis of dementia. The severity of apathy is related to the severity of dementia. Therefore, early diagnosis and treatment of apathy are of great significance to the prevention and treatment of dementia. The preclinical research on apathy in dementia is still in its infancy, and the systematic evaluation method has not been prescribed. The clinical diagnosis and treatment are also in the exploratory stage, and the complex pathophysiological mechanisms of apathy and dementia development have not been fully elucidated. This article reviews the research progress of apathy in dementia, the apathetic behaviors of dementia animal models, the behaviors of patients with apathy, and the treatment methods in recent years and summarizes the research status of apathy in dementia. This review aims to provide a theoretical basis for exploring the behavior of apathy in dementia and conducting preclinical research and evaluation of the pathogenesis and to lay a foundation for the treatment of apathy in dementia.
6.The role of brevican regulation in the antidepressant effects of electroacupuncture in a chronic stress rat model
Cong Gai ; Zhenyu Guo ; Kai Guo ; Shixin Yang ; Yi Zhang ; Huimin Zhu ; Feifei Kan ; Hongmei Sun ; Die Hu
Journal of Traditional Chinese Medical Sciences 2024;11(4):513-521
Objective:
To investigate the mechanism of electroacupuncture (EA) for treating depression and to explore the role of brevican in the medial prefrontal cortex (mPFC) in modulating stress susceptibility and the antidepressant effects of EA in rats.
Methods:
Twenty-four Sprague–Dawley (SD) rats were equally divided into three groups: green fluorescent protein (GFP) + control, GFP + chronic unpredicted mild stress (CUMS), and short-hairpin RNA targeting on brevican (shBcan) + CUMS. Another 24 SD rats were equally divided into CUMS + GFP, CUMS + GFP + EA, and CUMS + shBcan + EA groups. Behavioral tests were conducted to assess depression-like behavior. Western blot analysis was used to evaluate the expression of brevican, aggrecan, GLuA1, and PSD95 in mPFC subregions.
Results:
Behavioral parameter evaluation show that rats in the shBcan + CUMS group exhibited a significantly reduced sucrose preference (P = .0002) and increased immobility time (P = .0011) compared to those in rats in the GFP + CUMS group. Western blotting showed that brevican expression was significantly downregulated in the PrL of the shBcan + CUMS group compared with that in the GFP + CUMS group (P = .0192). Furthermore, compared to the CUMS + GFP + EA group, the CUMS + shBcan + EA group exhibited a significantly decreased sucrose preference (P = .0334), increased immobility time (P = .0465), and increased latency to food (P = .0261). In the CUMS + shBcan + EA group, the EA-induced brevican and PSD95 overexpression was reversed, compared with that in the CUMS + GFP + EA group (P = .0454 and P = .0198, respectively).
Conclusion
EA exerts its antidepressant effects through the modulation of brevican expression in rats. Our findings highlight the important role for brevican in stress susceptibility, which could be a potential target for treating depression.
7.Quality Evaluation and Analysis of Different Forms of Reference Substances in Classic Prescription Huangqi Guizhi Wuwu Decoction
Simei XIE ; Shengjun CHEN ; Qianqian ZHU ; Xiehe WANG ; Mei LI ; Yuqing HE ; Hongmei WEN
Journal of Nanjing University of Traditional Chinese Medicine 2024;40(7):710-721
OBJECTIVE To ascertain the substance benchmarks of the classic prescription Huangqi Guizhi Wuwu Decoction(HGWD),examine the quantitative value transfer throughout the entire process of HGWD,from herb pieces to decoction,concentrated solution and finally freeze-dried powder,and provide a valuable reference for the preparation method and scientific evaluation of bench-mark samples of classic prescriptions containing volatile substances.METHODS According to the Key information table of Ancient Classic Prescriptions(25 prescriptions)released by China,15 batches of HGWD were prepared.The multi-index content determination and characteristic chromatogram analysis methods were established,and the characteristic peak attribution and similarity evaluation were carried out.The multi-index contents of HGWD and its freeze-dried powder were investigated and compared,and the quantitative value transfer in the preparation process of decoction-concentrated solution-freeze-dried powder was analyzed.The physical form of the benchmark samples were scientifically and reasonably determined,and the content and transfer rate range of each component in the HGWD benchmark samples were determined,and the HGWD substance benchmarks were established.RESULTS The contents of cinnamaldehyde and cinnamyl alcohol in HGWD decreased significantly during the concentration and drying process,and the other in-dex components could be transferred more completely between the decoction,concentrated solution and freeze-dried powder.The simi-larity of the characteristic chromatograms of 15 batches of HGWD benchmark samples were all over 0.9,and 8 characteristic peaks were identified,which were from Paeoniae γadix Alba,Cinnamomi γamulus and Ginger.The paste-forming rate ranged from 8.0%to 11.0%.The content of Astragaloside Ⅳ was 0.04%-0.07%and the transfer rate was 9.0%-18.0%.The content of paeoniflorin was 1.5%-3.0%and the transfer rate was 33.0%-62.0%.The content of cinnamyl alcohol was 0.02%-0.04%,and the transfer rate was 25.0%-47.0%.The content of cinnamic aldehyde was 0.02%-0.05%and the transfer rate was 0.7%-1.5%.The content of cinnamic acid was 0.03%-0.06%and the transfer rate was 17.5%-34.0%.The content of 6-gingerol was 0.04%-0.08%and the transfer rate was 7.0%-14.0%.CONCLUSION The physical form of the decoction as the HGWD benchmark sample is deter-mined,which provides reference for the scientific selection of the physical form of the benchmark sample of classic prescriptions contai-ning volatile substances.The quality indexes of HGWD substance benchmarks are established,and the quantitative value transfer is an-alyzed,which provides the basis for the development of the classic prescription compound preparation.
8.Effectiveness of rhomboid intercostal and sub-serratus plane block in improving early recovery quality after thoracoscopic radical surgery for lung cancer
Qian HAO ; Hongyu DAI ; Chunyan LI ; Hongmei ZHOU ; Zhipeng ZHU
China Modern Doctor 2024;62(8):25-29
Objective Verify the improvement effect of rhomboid intercostal and sub-serratus plane block on the quality of early postoperative recovery in patients undergoing thoracoscopic radical resection of lung cancer;Comparison of the differences in the effect of regional block at different timing on improving the quality of early postoperative recovery.Methods A total of 75 patients,aged 18 to 75 years,with ASA gradeⅠ-Ⅱ,who were scheduled to undergo thoracoscopic radical resection of lung cancer from January 2022 to January 2023 were selected.Randomly divided into three groups:blank control group(Group C),preoperative block group(PR group),and postoperative block group(PO group).The PR group and the PO group received ultrasound guided rhomboid intercostal and sub-serratus plane block in the preoperative anesthesia preparation room and postoperative anesthesia recovery room,respectively,with a dosage of 0.375%ropivacaine 30ml.Evaluate the postoperative recovery quality of patients at 24 and 48 hours using the postoperative recovery quality rating scale(QoR-40)scoring scale.Record numeric rating scale(NRS)pain scores in resting and active states at 0.5h,1h,2h,4h,8h,12h,24h,and 48h after surgery.Record the consumption of opioid drugs during and after surgery,the effective number of postoperative patient-controlled intravenous analgesia(PCIA)compressions,and the incidence of nausea and vomiting.Results Compared with Group C,the consumption of opioids during surgery in the PR group was significantly reduced.The QoR-40 score at 24 hours after surgery was significantly higher in the PR and PO groups.Significant reduction in NRS scores between 1-8 hours of rest and 1-12 hours of activity after surgery,and the effective times of PCIA compressions and opioid consumption were significantly reduced(P<0.05).Compared with the PR group,the PO group consumed more opioids during surgery and had a higher NRS score at 0.5 hours after surgery(P<0.05).There was no significant difference in postoperative QoR-40 scores,PCIA effective compressions,and opioid consumption;There was no statistically significant difference in the incidence of postoperative nausea and vomiting among the three groups.Conclusion Rhomboid intercostal and sub-serratus plane block can improve the early recovery quality of patients undergoing thoracoscopic radical resection of lung cancer,reduce the postoperative pain level of patients,and reduce the amount of opioids used in perioperative period,and its effectiveness has nothing to do with the blocking time.
9.Effect of propofol or different doses of remimazolam on median effective dose of sufentanil for suppressing tracheal intubation response in elderly patients
Hai XU ; Tingting ZHU ; Hongmei ZHOU
China Modern Doctor 2024;62(8):79-82,92
Objective To investigate the effect of propofol or different doses of remimazolam on effective dose(ED50)of sufentanil in elderly patients with tracheal intubation response by sequential method.Methods Elderly patients,American Society of Anesthesiologists(ASA)Ⅰ and Ⅱ,aged 65-80 years,undergoing elective surgery under general anesthesia with endotracheal intubation from October to December 2022 were selected and randomly divided into 4 groups:Group P(propofol 2mg/kg)and group R1,R2 and R3(remimazolam 0.2,0.3 and 0.4mg/kg)were administered intravenously.During anesthesia induction,sufentanil was given with the dose set by Dixon sequential method,followed by intravenous injection of propofol or corresponding dose of remimazolam and cisatracurium 0.15mg/kg.Tracheal intubation was performed when train of four(TOF)count was 0.If the tracheal intubation response is positive,the sufentanil dose of the next patient is increased by 1 concentration gradient,otherwise,the sufentanil dose is decreased by 1 concentration gradient,and the ratio between adjacent concentrations is 1∶1.1,until 7 turning points appear and the study is terminated.Probit regression analysis was used to calculate the median ED50 and 95%effective dose(ED95)of sufentanil for suppressing tracheal intubation response in elderly patients,and the corresponding 95%CI.The incidence of hypotension,bradycardia,injection pain and other adverse reactions were recorded.Results A total of 113 elderly patients were included in this study,including 24,28,30 and 31 patients in P,R1,R2 and R3 groups,respectively.The ED50 and ED95 and corresponding 95%CI of sufentanil for suppressing tracheal intubation response in elderly patients with propofol 2 mg/kg or remimazolam 0.2,0.3,0.4mg/kg were:The ED50 and ED95 of group P were 0.236μg/kg(95%CI:0.218-0.256)and 0.266μg/kg(95%CI:0.250-0.398),respectively.The ED50 and ED95 of group R1 were 0.284μg/kg(95%CI:0.265-0.309)and 0.329μg/kg(95%CI:0.306-0.478),respectively.The ED50 and ED95 of R2 group were 0.239μg/kg(95%CI:0.221-0.260)and 0.282μg/kg(95%CI:0.261-0.415),respectively.The ED50 and ED95 of R3 group were 0.198μg/kg(95%CI:0.182-0.211)and 0.231μg/kg(95%CI:0.216-0.303),respectively.The incidence of hypotension,bradycardia and injection pain in R1,R2 and R3 groups were lower than those in P group(P<0.05).The ED50 of sufentanil in group R2 was similar to that in group P,but the incidence of hypotension and injection pain in group R2 was lower than that in group P.Conclusion With the increase of the dose of remimazolam,the ED50 of sufentanil to inhibit tracheal intubation reaction in elderly patients gradually decreased,and in the case of similar ED50,the incidence of hypotension,bradycardia and injection pain induced by remimazolam was lower than that induced by propofol,so remimazolam induction was more advantageous in general anesthesia for tracheal intubation in elderly patients.
10.Antibody levels against varicella-zoster virus in healthy individuals aged 1 to 30 years in Songjiang District of Shanghai in 2022
Wenhua CHEN ; Jinhua SHEN ; Qi ZHU ; Hongcen YAO ; Hongmei LU
Shanghai Journal of Preventive Medicine 2024;36(4):337-341
ObjectiveTo determine the antibody levels of varicella-zoster virus (VZV) in healthy individuals aged 1 to 30 years in Songjiang District of Shanghai, and to provide evidence for further development of varicella immunization strategies for healthy population. MethodsSix village committees were selected in Songjiang District through multi-stage stratified random sampling method from July to September 2022. Healthy individuals aged 1 to 30 years old in these villages were recruited and 3‒5 mL of venous blood was collected. Anti-VZV IgG antibody was tested by ELISA. Positive rate of anti-VZV IgG antibody and geometric mean concentration (GMC) were determined. ResultsA total of 315 healthy individuals aged (10.97±8.38) years were included in this study, of which 165 were males aged (11.00±8.52) years and 150 were females aged (10.96±8.25) years. Blood samples were collected and tested for anti-VZV IgG antibody, with the overall positive rate of 55.24% (174/315). The GMC was calculated to be 99.73 mIU·mL-1, with the GMC in those tested positive for anti-VZV IgG antibody of 413.11 mIU·mL-1. The positive rate of anti-VZV IgG antibody and GMCs across age groups ranged between 13.33%‒86.67% and 16.36‒355.14 mIU·mL-1, respectively. The highest GMC was found in the group of 20‒30 years old (355.14 mIU·mL-1), followed by 132.41 mIU·mL-1 in the group of 5‒ years old and 138.12 mIU·mL-1 in the group of 15‒ years old. Moreover, the positive rate was 38.47% in the group with 1-dose varicella vaccine and 63.49% in the group with 2 doses, while the GMC were 53.28 mIU·mL-1 and 130.79 mIU·mL-1 in these two groups, respectively. Multivariable analysis revealed that occupation was a risk factor associated with anti-VZV IgG antibody (OR=2.540). Stratified analysis by varicella immunization history showed that among 2-dose vaccination group, time interval since the last dose was a protective factor (OR=0.315). ConclusionsThe overall positive rate of anti-VZV IgG antibody in healthy population in Songjiang District of Shanghai remains low. The 2-dose varicella vaccination should be strengthened to improve the coverage in susceptible population.


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