1.Development and application of diphtheria-tetanus-pertussis containing combined vaccines
Sha ZHANG ; Li LI ; Ruyue HU ; Lei CAO ; Xin LIU ; Jiakai YE ; Yifan SONG ; Zhaonan ZHANG ; Wenzhou YU
Chinese Journal of Epidemiology 2025;46(9):1667-1672
Combined vaccines can simplify the vaccination process, improve coverage rates, reduce the risk of adverse events following immunization, lower social costs, and improve the timeliness of childhood vaccination. This article focuses on multi-component vaccines based on the diphtheria-tetanus-pertussis containing vaccine. Globally, multiple combined vaccines have been developed and marketed, but the development of combined vaccine is still in its infancy stage in China, with limited vaccine types and doses available. The research, development, and application of combined vaccines still face numerous challenges in China, including technical challenges in research and development, as well as insufficient motivation for research and development. Additionally, the high cost of existing combined vaccines, coupled with low public awareness and weak vaccination intentions, significantly hinders their widespread application, China should continue to rigorously implement the Vaccine Administration Law of the People's Republic of China, promote innovative development of combined vaccines, increase public awareness, strengthen child guardians' confidence in vaccination, and improve the accessibility and affordability of combined vaccines to protect public health across all life stages.
2.Current status of vaccination among the elderly in China and improvement strategies to increase vaccination rates
Xin LIU ; Lijun LIU ; Ruyue HU ; Lei CAO ; Jiakai YE ; Sha ZHANG ; Li LI ; Yifan SONG ; Zhaonan ZHANG ; Wenzhou YU
Chinese Journal of Preventive Medicine 2025;59(9):1466-1470
The health and well-being of the elderly have become a focal point for all sectors of society. As an effective means of preventing and controlling infectious diseases, vaccination plays a critical role in safeguarding human health. For older adults, timely and scientifically guided vaccination can significantly reduce the risk of serious illnesses while alleviating the associated economic burdens and pressure imposed on society. However, in practice, deficiencies in policy support, accessibility of vaccination services, and public awareness hinder some elderly individuals from fully benefiting from the protective effects of vaccines. This paper analyzes current vaccination practices for the elderly globally and proposes strategies to improve vaccination coverage, providing a scientific basis for advancing effective vaccination initiatives for this demographic in China.
3.Current status, challenges, and prospects of simultaneous vaccine administration in China′s childhood immunization strategy
Xin LIU ; Ruyue HU ; Jiakai YE ; Lei CAO ; Sha ZHANG ; Yifan SONG ; Zhaonan ZHANG ; Li LI ; Wenzhou YU
Chinese Journal of Preventive Medicine 2025;59(9):1462-1465
Vaccination has become one of the key public health interventions for reducing child mortality. With the implementation of the expanded programme on immunization, the number of vaccine types children need to receive is increasing, necessitating further optimization of childhood immunization strategies. The World Health Organization recommends simultaneous vaccination as one of the core strategies for optimizing childhood immunization schedules. This article analyzes the current status, challenges, and prospects of simultaneous vaccination strategies for children in China, aiming to provide a scientific basis for promoting and implementing strategies for the simultaneous administration of multiple vaccines to children.
4.Application of extraocular muscle related indexes combined with serum Th1 cytokine levels in the diagnosis of thyroid associated ophthalmopathy
Jun DU ; Jiakai LIU ; Ke XU ; Jing LI ; Chunmei ZHOU ; Jin ZHU
International Eye Science 2025;25(12):2022-2027
AIM: To evaluate the diagnostic value of serum Th1-type cytokine levels and extraocular muscle-related parameters in thyroid-associated ophthalmopathy(TAO).METHODS: A retrospective study was conducted on 45 patients diagnosed with TAO in our hospital from January 2023 to December 2024, and 20 normal volunteers during the same period as controls. Venous blood samples of the patients were collected to detect the concentrations of Th1-type cytokines [interferon-γ(IFN-γ), tumor necrosis factor-α(TNF-α), interleukin-2(IL-2), and interleukin-12(IL-12)] in the serum. Additionally, the end diastolic velocity(Ved), velocity maximum(Vmax), resistance index(RI)of the central retinal artery, as well as the thickness and left-right diameter of the medial rectus muscle were measured. Logistic regression model was used to analyze the risk factors of TAO, and receiver operating characteristic curve(ROC)was adopted to evaluate the diagnostic efficacy of each index for the occurrence of TAO.RESULTS: The general information of the two groups was comparable. Compared with the normal control group, the serum concentrations of IFN-γ and TNF-α in TAO patients were significantly increased, Ved and Vmax were lower than those in the control group, and RI and the thickness of the medial rectus muscle were higher than those in the control group(all P<0.05). Logistic regression analysis showed that serum IFN-γ concentration, Ved, Vmax, and the thickness of the medial rectus muscle were all risk factors for TAO. ROC curve analysis indicated that the AUCs of serum IFN-γ concentration, Ved, Vmax, and the thickness of the medial rectus muscle for the diagnostic efficacy of TAO were 0.756, 0.769, 0.732, and 0.642, respectively. The combined detection of IFN-γ, Ved, Vmax, and the thickness of the medial rectus muscle had an AUC of 0.840 and a Youden index of 0.59, which was superior to the detection of a single indicator.CONCLUSION: The levels of serum Th1-type cytokines and extraocular muscle-related ultrasound indicators have certain value in the diagnosis of TAO. The combination of IFN-γ, Ved, Vmax, and the thickness of the medial rectus muscle has better diagnosis efficiency in TAO, which can provide a certain reference for the early diagnosis of TAO.
5.Current status of vaccination among the elderly in China and improvement strategies to increase vaccination rates
Xin LIU ; Lijun LIU ; Ruyue HU ; Lei CAO ; Jiakai YE ; Sha ZHANG ; Li LI ; Yifan SONG ; Zhaonan ZHANG ; Wenzhou YU
Chinese Journal of Preventive Medicine 2025;59(9):1466-1470
The health and well-being of the elderly have become a focal point for all sectors of society. As an effective means of preventing and controlling infectious diseases, vaccination plays a critical role in safeguarding human health. For older adults, timely and scientifically guided vaccination can significantly reduce the risk of serious illnesses while alleviating the associated economic burdens and pressure imposed on society. However, in practice, deficiencies in policy support, accessibility of vaccination services, and public awareness hinder some elderly individuals from fully benefiting from the protective effects of vaccines. This paper analyzes current vaccination practices for the elderly globally and proposes strategies to improve vaccination coverage, providing a scientific basis for advancing effective vaccination initiatives for this demographic in China.
6.Current status, challenges, and prospects of simultaneous vaccine administration in China′s childhood immunization strategy
Xin LIU ; Ruyue HU ; Jiakai YE ; Lei CAO ; Sha ZHANG ; Yifan SONG ; Zhaonan ZHANG ; Li LI ; Wenzhou YU
Chinese Journal of Preventive Medicine 2025;59(9):1462-1465
Vaccination has become one of the key public health interventions for reducing child mortality. With the implementation of the expanded programme on immunization, the number of vaccine types children need to receive is increasing, necessitating further optimization of childhood immunization strategies. The World Health Organization recommends simultaneous vaccination as one of the core strategies for optimizing childhood immunization schedules. This article analyzes the current status, challenges, and prospects of simultaneous vaccination strategies for children in China, aiming to provide a scientific basis for promoting and implementing strategies for the simultaneous administration of multiple vaccines to children.
7.Development and application of diphtheria-tetanus-pertussis containing combined vaccines
Sha ZHANG ; Li LI ; Ruyue HU ; Lei CAO ; Xin LIU ; Jiakai YE ; Yifan SONG ; Zhaonan ZHANG ; Wenzhou YU
Chinese Journal of Epidemiology 2025;46(9):1667-1672
Combined vaccines can simplify the vaccination process, improve coverage rates, reduce the risk of adverse events following immunization, lower social costs, and improve the timeliness of childhood vaccination. This article focuses on multi-component vaccines based on the diphtheria-tetanus-pertussis containing vaccine. Globally, multiple combined vaccines have been developed and marketed, but the development of combined vaccine is still in its infancy stage in China, with limited vaccine types and doses available. The research, development, and application of combined vaccines still face numerous challenges in China, including technical challenges in research and development, as well as insufficient motivation for research and development. Additionally, the high cost of existing combined vaccines, coupled with low public awareness and weak vaccination intentions, significantly hinders their widespread application, China should continue to rigorously implement the Vaccine Administration Law of the People's Republic of China, promote innovative development of combined vaccines, increase public awareness, strengthen child guardians' confidence in vaccination, and improve the accessibility and affordability of combined vaccines to protect public health across all life stages.
8.Thoughts and suggestions on digital services to enhance the level of vaccination management
Lin LUAN ; Na LIU ; Benfeng ZHENG ; Zhuoyu ZHANG ; Yifan SONG ; Li LI ; Ming GAN ; Lei CAO ; Zhuoying HUANG ; Jiakai YE ; Zhaonan ZHANG ; Xiaoxue LIU ; Junlei CHEN ; Changshuang WANG ; Bi CAI ; Wenzhou YU
Chinese Journal of Preventive Medicine 2024;58(2):159-165
With the development of information technology and the increasing demand for vaccination services among the people, it is a definite trend to enhance the quality of vaccination services through digitization. This article starts with a clear concept of digital services for vaccination, introduces the current development status in China and abroad, analyzes the advantages and disadvantages of existing models in leading regions, takes a glean from the summation, and proposes targeted solutions. This study suggests establishing a departmental coordination mechanism for data interconnection and sharing, formulating data standards and functional specifications, enhancing the functionalities of the immunization planning information system, strengthening data collection and analytical usage, and intensifying appointment management and science and health education to provide expert guidance for the construction of digital vaccination services across the country in the future.
9.Thoughts and suggestions on digital services to enhance the level of vaccination management
Lin LUAN ; Na LIU ; Benfeng ZHENG ; Zhuoyu ZHANG ; Yifan SONG ; Li LI ; Ming GAN ; Lei CAO ; Zhuoying HUANG ; Jiakai YE ; Zhaonan ZHANG ; Xiaoxue LIU ; Junlei CHEN ; Changshuang WANG ; Bi CAI ; Wenzhou YU
Chinese Journal of Preventive Medicine 2024;58(2):159-165
With the development of information technology and the increasing demand for vaccination services among the people, it is a definite trend to enhance the quality of vaccination services through digitization. This article starts with a clear concept of digital services for vaccination, introduces the current development status in China and abroad, analyzes the advantages and disadvantages of existing models in leading regions, takes a glean from the summation, and proposes targeted solutions. This study suggests establishing a departmental coordination mechanism for data interconnection and sharing, formulating data standards and functional specifications, enhancing the functionalities of the immunization planning information system, strengthening data collection and analytical usage, and intensifying appointment management and science and health education to provide expert guidance for the construction of digital vaccination services across the country in the future.
10.Emodin upregulates the Sirt2 to attenuate LPS-induced oxidative stress response in RAW264.7 cells
Chun LONG ; Hongying BI ; Changzhen YANG ; Jiakai WANG ; Yan TANG ; Xu LIU
The Journal of Practical Medicine 2024;40(13):1785-1790
Objective The aim of this study was to investigate the impact and mechanisms of emodin on oxidative stress response in lipopolysaccharide(LPS)-induced murine mononuclear macrophages(RAW264.7).Methods Involved the use of LPS,RAW264.7 cells,and emodin.Experimental groups included a control group,LPS(1 μg/mL)group,and LPS(1 μg/mL)+emodin(15 μmmol/L)pretreatment group.Aldehyde malondialdehyde(MDA)content,intracellular reactive oxygen species(ROS)levels,and silent information regulator 2(Sirt2)expression were evaluated at 6,12,and 18 hours after LPS exposure.Additionally,RAW264.7 cells were pretreated with Sirt2 inhibitor AGK2(20 μmol/L)followed by LPS stimulation,and the above-mentioned parameters were assessed at 6 hours.Results Compared to the control group,MDA content,ROS levels,Sirt2 mRNA,and protein expression in RAW264.7 cells in the LPS group increased at all time points(all P<0.05).At 6 and 18 hours,MDA content and ROS levels in RAW264.7 cells in the LPS+emodin group decreased significantly(all P<0.05),while at 12 hours,ROS levels were lower in the LPS group compared to the LPS+emodin group(P<0.05).Sirt2 mRNA and protein levels significantly increased at all time points(all P<0.05)compared to the LPS group.In the LPS+emodin+AGK2 group,Sirt2 mRNA and protein levels decreased,and MDA content and ROS levels increased compared to the LPS+emodin group(all P<0.05).Conclusion LPS-induced oxidative stress in RAW264.7 cells and emodin attenuate LPS-induced oxidative stress in RAW264.7 cells through Sirt2.

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