1.Immunogenic evaluation of pseudorabies virus gB protein expressed in the baculovirus-insect cell system.
Jin WANG ; Kai WANG ; Ying ZHANG ; Shuzhen TAN ; Shiqi SUN ; Huichen GUO ; Shuanghui YIN ; Jiaqiang NIU
Chinese Journal of Biotechnology 2025;41(7):2694-2706
Pseudorabies (PR) is an infectious disease caused by the pseudorabies virus (PRV), affecting various domesticated and wild animals. Since pigs are the only natural hosts of PRV, PR poses a serious threat to the pig farming industry. Currently, PR is primarily prevented through vaccination with inactivated vaccines or genetically modified attenuated live vaccines. Developing safe and effective genetically engineered vaccines would facilitate the eradication and control of PR. In this study, the PRV vaccine strain Bartha-K61 was used as the reference strain. The gB protein was expressed via the baculovirus-insect cell expression system. Non-denaturing gel electrophoresis confirmed that the gB protein could form a trimeric structure. The purified gB protein was used to immunize mice, and the immune effect was evaluated by a challenge test. The results showed that the gB antigen induced a strong immune response in mice, with the serum-neutralizing antibody titer above 1:70. The lymphocyte stimulation index reached more than 1.29, and the level of (interferon gamma, IFN-γ) release was higher than 100 pg/mL. After immunization, mice were challenged with the virus at a dose of 104 TCID₅₀/mL, 200 μL per mouse, and the clinical protection rate was 100%. Immunohistochemistry, histopathological section, and tissue viral load results showed that the pathological damage and viral load in the gB-immunized group were significantly lower than those in the PBS group. In summary, the gB protein obtained in this study induced strong humoral and cellular immune responses in mice, laying a foundation for developing a recombinant gB protein subunit vaccine.
Animals
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Mice
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Baculoviridae/metabolism*
;
Viral Envelope Proteins/biosynthesis*
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Herpesvirus 1, Suid/genetics*
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Pseudorabies/immunology*
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Swine
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Pseudorabies Vaccines/genetics*
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Antibodies, Viral/blood*
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Insecta/cytology*
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Mice, Inbred BALB C
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Female
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Viral Vaccines/immunology*
2.Chinese expert consensus on the evaluation of allergen-specific immunotherapy outcomes(Wuhan, 2025).
Yuqin DENG ; Xi LUO ; Zhuofu LIU ; Shuguang SUN ; Jing YE ; Tiansheng WANG ; Jianjun CHEN ; Meiping LU ; Yin YAO ; Ying WANG ; Wei ZHOU ; Bei LIU ; Qingxiang ZENG ; Yuanteng XU ; Qintai YANG ; Yucheng YANG ; Feng LIU ; Chengli XU ; Yanan SUN ; Haiyu HONG ; Haibo YE ; Liqiang ZHANG ; Fenghong CHEN ; Huabin LI ; Hongtian WANG ; Yuncheng LI ; Wenlong LIU ; Yu XU ; Hongfei LOU
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2025;39(11):1075-1085
Allergen-specific immunotherapy(AIT) remains the only therapeutic approach with the potential to modify the natural course of allergic rhinitis(AR). Nevertheless, considerable inter-individual variability exists in patients'responses to AIT. To facilitate more reliable assessment of treatment efficacy, the China Rhinopathy Research Cooperation Group(CRRCG) convened young and middle-aged nasal experts in China to formulate the present consensus. The recommended subjective outcome measures for AIT comprise symptom scores, medication scores, combined symptom and medication scores, quality-of-life assessments, evaluation of disease control, and assessment of comorbidities. Objective indicators may supplement these measures. Currently available objective approaches include skin prick testing, nasal provocation testing, and allergen exposure chambers. However, these methods remain constrained by practical limitations and are not yet appropriate for routine implementation in clinical efficacy evaluation. In addition, several biomarkers, including sIgE and the sIgE/tIgE ratio, sIgG4, serum IgE-blocking activity, IgA, cytokines and chemokines, as well as immune cell surface molecules and their functional activity, have been shown to have associations with AIT outcomes. While these biomarkers may complement subjective assessments, they are subject to significant limitations. Consequently, large-scale multicenter trials and real-world evidence are required to strengthen the evidence base. The present consensus underscores the necessity of integrating patients'subjective experiences with objective testing throughout the treatment process, thereby providing a more comprehensive and accurate framework for efficacy evaluation. Looking forward, future investigations should prioritize the incorporation of multi-omics data and artificial intelligence methodologies, which hold promise for overcoming current limitations in assessment strategies and for advancing both the standardization and personalization of AIT.
Humans
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Allergens/immunology*
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China
;
Consensus
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Desensitization, Immunologic
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Immunoglobulin E
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Quality of Life
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Rhinitis, Allergic/therapy*
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Treatment Outcome
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East Asian People
3.A photodynamic nanohybrid system reverses hypoxia and augment anti-primary and metastatic tumor efficacy of immunotherapy.
Haitao YUAN ; Xiaoxian WANG ; Xin SUN ; Di GU ; Jinan GUO ; Wei HUANG ; Jingbo MA ; Chunjin FU ; Da YIN ; Guohua ZENG ; Ying LONG ; Jigang WANG ; Zhijie LI
Acta Pharmaceutica Sinica B 2025;15(6):3243-3258
Photodynamic immunotherapy is a promising strategy for cancer treatment. However, the dysfunctional tumor vasculature results in tumor hypoxia and the low efficiency of drug delivery, which in turn restricts the anticancer effect of photodynamic immunotherapy. In this study, we designed photosensitive lipid nanoparticles. The synthesized PFBT@Rox Lip nanoparticles could produce type I/II reactive oxygen species (ROS) by electron or energy transfer through PFBT under light irradiation. Moreover, this nanosystem could alleviate tumor hypoxia and promote vascular normalization through Roxadustat. Upon irradiation with white light, the ROS produced by PFBT@Rox Lip nanoparticles in situ dysregulated calcium homeostasis and triggered endoplasmic reticulum stress, which further promoted the release of damage-associated molecular patterns, enhanced antigen presentation, and stimulated an effective adaptive immune response, ultimately priming the tumor microenvironment (TME) together with the hypoxia alleviation and vessel normalization by Roxadustat. Indeed, in vivo results indicated that PFBT@Rox Lip nanoparticles promoted M1 polarization of tumor-associated macrophages, recruited more natural killer cells, and augmented infiltration of T cells, thereby leading to efficient photodynamic immunotherapy and potentiating the anti-primary and metastatic tumor efficacy of PD-1 antibody. Collectively, photodynamic immunotherapy with PFBT@Rox Lip nanoparticles efficiently program TME through the induction of immunogenicity and oxygenation, and effectively suppress tumor growth through immunogenic cell death and enhanced anti-tumor immunity.
4.Enzyme-independent functions of HDAC3 in the adult heart.
Sichong QIAN ; Chen ZHANG ; Wenbo LI ; Shiyang SONG ; Guanqiao LIN ; Zixiu CHENG ; Wenjun ZHOU ; Huiqi YIN ; Yueli WANG ; Haiyang LI ; Ying H SHEN ; Zheng SUN
Acta Pharmaceutica Sinica B 2025;15(7):3561-3574
The cardioprotective effects of histone deacetylase (HDAC) inhibitors (HDIs) are at odds with the deleterious effects of HDAC depletion. Here, we use HDAC3 as a prototype HDAC to address this contradiction. We show that adult-onset cardiac-specific depletion of HDAC3 in mice causes cardiac hypertrophy and contractile dysfunction on a high-fat diet (HFD), excluding developmental disruption as a major reason for the contradiction. Genetically abolishing HDAC3 enzymatic activity without affecting its protein level does not cause cardiac dysfunction on HFD. HDAC3 depletion causes robust downregulation of lipid oxidation/bioenergetic genes and upregulation of antioxidant/anti-apoptotic genes. In contrast, HDAC3 enzyme activity abolishment causes much milder changes in far fewer genes. The abnormal gene expression is cardiomyocyte-autonomous and can be rescued by an enzyme-dead HDAC3 mutant but not by an HDAC3 mutant (Δ33-70) that lacks interaction with the nuclear-envelope protein lamina-associated polypeptide 2β (LAP2β). Tethering LAP2β to the HDAC3 Δ33-70 mutant restored its ability to rescue gene expression. Finally, HDAC3 depletion, not loss of HDAC3 enzymatic activity, exacerbates cardiac contractile functions upon aortic constriction. These results suggest that the cardiac function of HDAC3 in adults is not attributable to its enzyme activity, which has implications for understanding the cardioprotective effects of HDIs.
5.A Novel Model of Traumatic Optic Neuropathy Under Direct Vision Through the Anterior Orbital Approach in Non-human Primates.
Zhi-Qiang XIAO ; Xiu HAN ; Xin REN ; Zeng-Qiang WANG ; Si-Qi CHEN ; Qiao-Feng ZHU ; Hai-Yang CHENG ; Yin-Tian LI ; Dan LIANG ; Xuan-Wei LIANG ; Ying XU ; Hui YANG
Neuroscience Bulletin 2025;41(5):911-916
6.Specific effect of inserted sham acupuncture and its impact on the estimation of acupuncture treatment effect in randomized controlled trials: A systematic survey.
Xiao-Chao LUO ; Jia-Li LIU ; Ming-Hong YAO ; Ye-Meng CHEN ; Arthur Yin FAN ; Fan-Rong LIANG ; Ji-Ping ZHAO ; Ling ZHAO ; Xu ZHOU ; Xiao-Ying ZHONG ; Jia-Hui YANG ; Bo LI ; Ying ZHANG ; Xin SUN ; Ling LI
Journal of Integrative Medicine 2025;23(6):630-640
BACKGROUND:
The use of inserted sham acupuncture as a placebo in randomized controlled trials (RCTs) is controversial, because it may produce specific effects that cause an underestimation of the effect of acupuncture treatment.
OBJECTIVE:
This systematic survey investigates the magnitude of insert-specific effects of sham acupuncture and whether they affect the estimation of acupuncture treatment effects.
SEARCH STRATEGY:
PubMed, Embase and Cochrane Central Register of Controlled Trials were searched to identify acupuncture RCTs from their inception until December 2022.
INCLUSION CRITERIA:
RCTs that evaluated the effects of acupuncture compared to sham acupuncture and no treatment.
DATA EXTRACTION AND ANALYSIS:
The total effect measured for an acupuncture treatment group in RCTs were divided into three components, including the natural history and/or regression to the mean effect (controlled for no-treatment group), the placebo effect, and the specific effect of acupuncture. The first two constituted the contextual effect of acupuncture, which is mimicked by a sham acupuncture treatment group. The proportion of acupuncture total effect size was considered to be 1. The proportion of natural history and/or regression to the mean effect (PNE) and proportional contextual effect (PCE) of included RCTs were pooled using meta-analyses with a random-effect model. The proportion of acupuncture placebo effect was the difference between PCE and PNE in RCTs with non-inserted sham acupuncture. The proportion of insert-specific effect of sham acupuncture (PIES) was obtained by subtracting the proportion of acupuncture placebo effect and PNE from PCE in RCTs with inserted sham acupuncture. The impact of PIES on the estimation of acupuncture's treatment effect was evaluated by quantifying the percentage of RCTs that the effect of outcome changed from no statistical difference to statistical difference after removing PIES in the included studies, and the impact of PIES was externally validated in other acupuncture RCTs with an inserted sham acupuncture group that were not used to calculate PIES.
RESULTS:
This analysis included 32 studies with 5492 patients. The overall PNE was 0.335 (95% confidence interval [CI], 0.255-0.415) and the PCE of acupuncture was 0.639 (95% CI, 0.567-0.710) of acupuncture's total effect. The proportional contribution of the placebo effect to acupuncture's total effect was 0.191, and the PIES was 0.189. When we modeled the exclusion of the insert-specific effect of sham acupuncture, the acupuncture treatment effect changed from no difference to a significant difference in 45.45% of the included RCTs, and in 40.91% of the external validated RCTs.
CONCLUSION
The insert-specific effect of sham acupuncture in RCTs represents 18.90% of acupuncture's total effect and significantly affects the evaluation of the acupuncture treatment effect. More than 40% of RCTs that used inserted sham acupuncture would draw different conclusions if the PIES had been controlled for. Considering the impact of the insert-specific effect of sham acupuncture, caution should be taken when using inserted sham acupuncture placebos in RCTs. Please cite this article as: Luo XC, Liu JL, Yao MH, Chen YM, Fan AY, Liang FR, Zhao JP, Zhao L, Zhou X, Zhong XY, Yang JH, Li B, Zhang Y, Sun X, Li L. Specific effect of inserted sham acupuncture and its impact on the estimation of acupuncture treatment effect in randomized controlled trials: A systematic survey. J Integr Med. 2025; 23(6):630-640.
Acupuncture Therapy/methods*
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Humans
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Randomized Controlled Trials as Topic
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Placebo Effect
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Placebos
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Treatment Outcome
7.Influence of Outdoor Light at Night on Early Reproductive Outcomes of In Vitro Fertilization and Its Threshold Effect: Evidence from a Couple-Based Preconception Cohort Study.
Wen Bin FANG ; Ying TANG ; Ya Ning SUN ; Yan Lan TANG ; Yin Yin CHEN ; Ya Wen CAO ; Ji Qi FANG ; Kun Jing HE ; Yu Shan LI ; Ya Ning DAI ; Shuang Shuang BAO ; Peng ZHU ; Shan Shan SHAO ; Fang Biao TAO ; Gui Xia PAN
Biomedical and Environmental Sciences 2025;38(8):1009-1015
8.Rural residents' willingness and needs to participate in emergency rescue training: a qualitative study
Meili QI ; Yuxiang LIU ; Xiucui SUN ; Cuiying ZHANG ; Ying LI ; Zhenfeng YIN
Chinese Journal of Modern Nursing 2025;31(13):1794-1798
Objective:To gain an in-depth understanding of the willingness and needs of rural residents for emergency rescue training, so as to provide reference for improving their participation in emergency rescue training and the training effectiveness.Methods:Purposive sampling was used to select 16 rural residents in different streets of two townships in Binzhou City, Shandong Province from April to May 2024 as study subjects. Information was collected using face-to-face semi-structured in-depth interviews. After the interview, timely transcription and verification were conducted, and the Colaizzi 7-step analysis method was used to analyze and summarize the data.Results:The majority of residents had a strong willingness to participate in emergency rescue training, and some had a negative willingness. Rural residents' needs for emergency rescue training focused on five main areas of targeted, content, specialization, continuity, and implementation needs.Conclusions:The motivating factors for rural residents' willingness to participate in emergency rescue training are complex. The relevant departments and organizations should give full consideration to the actual needs of the residents and provide them with active and substantive guidance and assistance.
9.Efficacy of ketogenic diet in the treatment of SCN2A gene-related developmental epileptic encephalopathy(report of one case)
Ying SUN ; Lifen DUAN ; Runxiu YIN
Journal of Clinical Neurology 2025;38(1):48-51
Objective To investigate the efficacy of ketogenic diet in the treatment of SCN2A gene-related developmental epileptic encephalopathy.Methods The clinical data of a child with developmental epileptic encephalopathy associated with SCN2A gene mutation,whose main manifestations were developmental retardancy and epileptic spasm,and treated with ketogenic diet was retrospectively analyzed.Results Epileptic spasm onset at 5 months old.The EEG showed hypsarrhythmia and the epileptic spasm was monitored.Genetic examination revealed a new heterozygous missense mutation of c.5317 G>A(p.Ala1773Thr)in SCN2A gene.The child was not effective after treatment with a variety of anti-seizure drugs,and was effective after treatment with ketogenic diet.The follow-up for 11 months showed that the seizure of the child was completely controlled and cognitive progress was made.Conclusion The ketogenic diet can be used to treat SCN2A gene-related developmental epileptic encephalopathy,and it can also achieve better results for younger patients.
10.Cross-sectional survey of healthcare-associated infection in 5 736 medical institutions across China in 2024
Cui ZENG ; Wuqiang GAO ; Fu QIAO ; Hui ZHAO ; Xu FANG ; Linping LI ; Xiuwen CHEN ; Jiansen CHEN ; Dan LI ; Yuan ZHOU ; Lingli YU ; Qinglan MENG ; Xia MOU ; Lijuan XIONG ; Weiguang LI ; Ding LIU ; Jiaqing XIAO ; Limei OU ; Baozhen LI ; Jun YIN ; Haojun ZHANG ; Qiang FU ; Qun LU ; Biao WU ; Ya-wei XING ; Shumei SUN ; Shuncai WANG ; Longmin DU ; Jingping ZHANG ; Wen-ying HE ; Gui CHENG ; Nan REN ; Xun HUANG ; Anhua WU
Chinese Journal of Infection Control 2025;24(11):1572-1583
Objective To understand the current situation of healthcare-associated infection(HAI)in China,pro-vide data support and decision-making basis for formulating scientific and effective strategies for HAI prevention and control.Methods A nationwide cross-sectional survey on HAI was conducted among various types and levels of medical institutions in China according to a unified protocol of bedside surveys and case investigations.Results In 2024,a total of 5 736 medical institutions and 2 751 765 patients were surveyed.Among them,34 889 HAI cases were identified,with a prevalence rate of 1.27%.The number of HAI episodes was 38 032,and case prevalence rate was 1.38%.The prevalence rate of HAI in medical institutions in different regions of China ranged from 0.66%to 2.35%.Among medical institutions of different scales,those with a bed capacity of ≥900 had the high-est incidence of HAI,reaching 1.65%.The most common infection site was the lower respiratory tract(44.66%),followed by the urinary tract(12.94%),surgical site(9.32%),upper respiratory tract(7.02%),and bloodstream infection(5.78%).The top 3 departments with the highest HAI rates were the general intensive care unit(10.02%),department of neurosurgery(5.51%),and department(group)of hematology(5.34%).A total of 23 238 strains of HAI pathogens were detected,with 10 714 strains(46.10%)from lower respiratory tract speci-mens.The top 5 detected strains were Klebsiella pneumoniae(14.76%),Pseudomonas aeruginosa(13.33%),Escherichia coli(12.79%),Acinetobacter baumannii(9.23%),and Staphylococcus aureus(7.88%).231 944 pa-tients underwent class Ⅰ incision surgery were monitored,with 1 647 cases experienced surgical site infection,and the prevalence rate of surgical site infection was 0.71%.The number of patients who should undergo pathogen de-tection(patients receiving therapeutic and therapeutic combined prophylactic antimicrobial agents)was 715 179,while the actual number was 480 492,with a pathogen detection rate of 67.18%.425 225 patients received patho-genic detection before treatment,with a detection rate of 59.46%.Conclusion The overall HAI prevalence in Chi-na is lower,showing disparities among medical institutions of different regions and scales.Therefore,precise imple-mentation of measures is necessary for HAI prevention and control,with a focus on high-risk institutions and high-risk departments,key areas,and critical procedures.All levels of medical institutions should continuously reduce the incidence of HAI by strengthening monitoring,standardizing the use of antimicrobial agents,and reinforcing basic HAI prevention and control measures.

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