1.Development and verification of a method for measuring adenovirus neutralizing antibody titer in immune serum of adenovirus vector vaccines
Chinese Journal of Biologicals 2026;39(02):201-207
Objective To develop and verify a method for detecting adenovirus antibodies with neutralizing activity in serum after immunization with recombinant adenovirus vaccines, so as to quantify adenovirus neutralizing antibodies in clinical serum.Methods After neutralizing the recombinant fluorescent adenovirus AdC68 XY4-GFP with continuously serially diluted immune serum, the cells were infected, and the dilution of the test serum corresponding to the number of fluorescent plaques reduced to 10% of the pre-neutralization level was defined as the adenovirus neutralizing antibody titer of the test serum[recorded as inhibitory concentration 90(IC_(90))]. Three different cell lines(293A, HeLa and A549 cells) were inoculated with the same amount of virus to determine the cells with the highest sensitivity for detection. The proliferation curve of the recombinant adenovirus was analyzed and the data interpretation time was determined. The titer range of the recombinant fluorescent adenovirus was determined through neutralization tests. In addition, the specificity, accuracy, repeatability,intermediate precision and robustness of the established method were verified.Results The 293A cells were found to be the most sensitive to adenovirus, and thus were selected for subsequent experiments. The result interpretation time was set at 48 hours post-infection. The mean fluorescent plaque numbers corresponding to different adenovirus titers showed a linear relationship(R~2= 0. 970 3). The recombinant fluorescent adenovirus was found to produce stable results within the infection range of 62. 5 to 500 IFU/50 ??L. The midpoint of the linear range, 250 IFU/50 ??L was chosen for the experiments.The adenovirus neutralizing antibody IC_(90)of fetal bovine serum(FBS) was lower than 1∶20, and the IC_(90)of positive control serum was 1∶96. The recovery rates of neutralizing antibody titers of 003 adenovirus in positive control serum and clinical serum were between 50% and 150%. The RSD of the six test results of positive control serum was 8. 27%, < 50%. The RSD of the two test results of the same sample detected by three experimenters at different times was 4. 52%, < 50%. The effects of virus proliferation culture time and plated cell volume on adenovirus neutralizing antibody titer met the acceptance criteria.Conclusion A method for the detection of adenovirus antibodies with neutralizing activity in serum after immunization with recombinant adenovirus vaccines has been developed. The level of adenovirus-specific neutralizing antibodies can be quickly detected by infecting sensitive cells after neutralization of recombinant fluorescent virus and immune serum.The specificity, accuracy, repeatability, intermediate precision and robustness of this method all meet the verification requirements.
2.Role of insomnia symptoms in the association between drinking behaviors and anxiety symptoms in college freshmen
YANG Jieru, LI Xiaoxiao,HUANG Yan, HU Dongyue, YANG Jiaxing, BAO Jinying, CHANG Litao, LEI Yuanting, XU Honglü ;
Chinese Journal of School Health 2026;47(2):250-255
Objective:
To analyze the association between drinking behaviors and anxiety symptoms, with the mediating role of insomnia symptoms among college freshmen, so as to provide a reference basis for reducing the occurrence of anxiety symptoms in college freshmen.
Methods:
From October to December 2021, 31 856 freshmen were selected by the purposive sampling method in 22 colleges across 11 provinces (Fujian, Jiangsu, Guangdong, Henan, Anhui, Hubei, Shanxi, Jiangxi, Shaanxi, Yunnan, Chongqing) in China. The Semi quantitative Food Frequency Questionnaire was used to investigate college freshmen drinking behaviors. The Depression Anxiety Stress Scale 21 and the Insomnia Severity Index were used to assess anxiety symptoms and insomnia symptoms in college freshmen. The generalized linear model was employed to analyze the association between drinking behaviors and anxiety symptoms in college freshmen, and the structural equation modeling was used to assess the mediating effect of insomnia symptoms on the association.
Results:
The detection rate of anxiety symptoms among college freshmen was 28.2%, the detection rates of the mild, moderate, severe and extremely severe were 6.6%, 15.9%, 3.2% and 2.6%, respectively. While 23.6% of college freshmen reported drinking in the past month, the rates were 39.8% among boys and 15.9% among girls. After adjusting for demographic variables (ethnicity, education, major, etc.) and confounding variables (self evaluation of learning burden, number of close friends, screen time, etc.), the results of generalized linear model analysis showed that beer consumption was associated with anxiety symptoms in college freshmen( β =0.09, 95% CI =0.04-0.14), girls( β =0.14, 95% CI =0.07-0.21) and those aged 19-20 years ( β =0.12, 95% CI =0.05-0.19)(all P <0.05). Red wine consumption was associated with anxiety symptoms in male students ( β =0.13, 95% CI =0.02-0.24, P <0.05). Alcohol and beer consumption were associated with insomnia in college freshmen[ β (95% CI ) =0.22(0.08-0.36),0.31(0.23-0.39),both P <0.01]. Insomnia symptoms partially mediated the association between drinking behaviors and anxiety symptoms among college freshmen with a mediating effect value of 0.05, accounting for 50.49% of the total effect.
Conclusions
Insomnia symptoms partially mediates the association between drinking behaviors and anxiety symptoms in college freshmen. Measures should be taken to simultaneously intervene in the drinking behaviors and insomnia symptoms of college freshmen to prevent the occurrence of their anxiety symptoms.
3.Association between snack consumption and depressive symptoms among first year junior high school students with different left behind experiences in Yunnan Province
LIU Na, WU Huijuan, WANG Liangui, LUO Chengyong, CAO Yanrong, FU Yun, ZHANG Tai,〖JZ〗 KONG Jing, HU Mengdie, XIONG Yuan, XU Honglü ;
Chinese Journal of School Health 2026;47(1):18-22
Objective:
To explore the relationship between snack consumption and depressive symptoms in first year junior high school students with different left behind experiences in Yunnan Province, so as to provide a basis for improving depressive symptoms among first year junior high school students with different left behind experiences.
Methods:
From October to December 2022,a cluster random sampling method was used to select 8 500 first year junior high school students from 11 ethnic minority areas (Fugong County, Longling County, Longyang District, Luchun County, Mojiang County, Nanjian County, Qiaojia County, Shuangjiang County, Tengchong City, Yuanmou County, Zhenyuan County) in Yunnan Province for a questionnaire survey. The Chinese version of Depression Anxiety Stress Scale-21 was applied to assess depressive symptoms in first year junior high school students, and snack consumption was collected by employing food frequency questionnaire. The generalized linear model was used to analyze the association between first year junior high school students snack consumption and depressive symptoms, and the analysis was stratified according to left behind experience.
Results:
The detection rates of depressive symptoms among firstyear junior high school students with and without left behind experience were 36.25% and 26.91%, respectively. After controlling for confounding variables, the generalized linear model analysis showed that sweet snacks ( β=0.16, 95%CI =0.07-0.25), fast food ( β=0.14, 95%CI =0.04-0.23) and carbonated drinks ( β=0.09, 95%CI =0.01-0.17) of first year junior high school students with left behind experience (all P <0.05). Compared with those without such behavior, the risk of depressive symptoms was higher in consumption of fast food ( β=0.13, 95%CI =0.07-0.18) and carbonated drinks ( β=0.10, 95%CI =0.06-0.15)among first year junior high school students without left behind experience (both P <0.05).
Conclusion
Snack consumption among first year junior high school students in Yunnan may increase the risk of developing depressive symptoms, while first year junior high school students with left behind experience may have a greater risk of developing depressive symptoms.
4.Association between takeout fast foods and sugar sweetened beverage consumption with co-occurrence of anxiety and depressive symptoms among first year junior high school students in Yunnan Province
HU Dongyue, ZHANG Zhengwu, XU Zenglei, TAO Lei, ZENG Anna, GUAN Liao, CHANG Litao,〖JZ〗 HUANG Xin, CHEN Weiwei, LI Jiangli, XU Honglü ;
Chinese Journal of School Health 2026;47(1):23-26
Objective:
To explore the association between takeout fast foods and sugar sweetened beverage consumption with co-occurrence of anxiety and depressive symptoms among first year junior high school students in Yunnan Province, so as to provide theoretical basis for the prevention of anxiety and depressive symptoms co-occurrence among adolescents.
Methods:
A random cluster sampling involving 8 500 first year junior high school students in 11 counties in Yunnan Province was conducted by a questionnaire survey from October to December 2022. The Depression Anxiety Stress Scale-21 (DASS-21) was applied to assess anxiety and depressive symptoms in first year junior high school students. Chi-square test was used to compare the anxiety-depression co-occurrence symptoms of first year junior high school students with different demographic characteristics. The association between takeout fast foods and sugar sweetened beverage consumption with co-occurrence of anxiety and depressive symptoms of adolescents was analyzed by binary Logistic regression models.
Results:
The detection rate of co-occurrence of anxiety and depression symptoms among first year junior high school students in Yunnan Province was 26.92%. After controlling for demographic variables and other confounders, takeout fast foods and sugar sweetened beverage consumption( OR=1.50, 95%CI =1.27-1.77) was associated with anxiety-depression co-occurrence symptoms among first year junior high school students in Yunnan Province ( P <0.01). Stratified analysis showed that both Han ( OR=1.37, 95%CI =1.07-1.77) and ethnic minorities ( OR=1.60, 95%CI =1.29-2.00) exhibited statistically significant associations between takeout fast foods and sugar sweetened beverage consumption with co-occurrence of anxiety and depressive symptoms(both P <0.05).
Conclusions
Takeout fast foods and sugar sweetened beverage consumption increases the risk of co-occurrence of anxiety and depressive symptoms among first year junior high school students in Yunnan Province. It is recommended to strengthen guidance on the consumption of such products among junior high school students to prevent co-occurrence of anxiety and depressive symptoms.
5.A case report of severe hemolysis associated with high-dose IVIG in a child
Xiaohong JIN ; Meikun HU ; Mengxing LYU ; Kexuan QU
Chinese Journal of Blood Transfusion 2026;39(5):677-681
Objective: To report severe hemolytic adverse reactions caused by intravenous infusion of human immunoglobulin (IVIG) in a child, and to alert clinical staff to be aware of IVIG-associated hemolytic reactions to ensure transfusion safety in pediatric populations. Methods: A retrospective analysis was conducted on a case of severe hemolytic reaction following high-dose IVIG infusion in a pediatric patient with severe pneumonia. Results: Following high-dose IVIG infusion, severe hemolytic adverse reactions developed, clinically manifesting as decreased hemoglobin, progressively elevated bilirubin and lactate dehydrogenase (LDH), and gradual hepatomegaly. IgG antibodies were detected in the patient's erythrocytes and plasma. Conclusion: When patients passively acquire IgG antibodies through IVIG infusion, timely monitoring of antibody titers in vivo is critical. For subsequent transfusions, red blood cell products that lack the corresponding antigens should be selected to mitigate hemolysis. Clinicians should remain vigilant against rare but severe hemolytic adverse reactions.
6.Animal models for transfusion-related adverse reactions: a systematic review and subgroup meta-analysis
Biao YANG ; Hong FENG ; Zhenxin YANG ; Shudan ZHENG ; Jiao YANG ; Yunkai HU ; Yangping WU
Chinese Journal of Blood Transfusion 2026;39(5):682-688
Objective: To systematically review the modeling strategies, primary outcomes, and quantifiable effects in animal models of transfusion-related acute lung injury (TRALI), transfusion-associated circulatory overload (TACO), acute hemolytic transfusion reaction (AHTR), and related transfusion paradigms. Subgroup meta-analysis was designated as the primary analytical framework, with the overall pooled effect treated as exploratory. Methods: We searched PubMed, Embase, Web of Science, and the Cochrane Central Register of Controlled Trials (CENTRAL) from inception to December 30, 2025. Eligible studies utilized animal models to simulate transfusion-related adverse reactions and provided extractable quantitative outcomes. The SYRCLE tool was used to assess the risk of bias. Random-effects models were employed to calculate odds ratios (ORs) and 95% confidence intervals (CIs). Prespecified subgroup analyses were conducted for TRALI, TACO, AHTR, and donor sex-related transfusion paradigms. Additional analyses included funnel plots, Egger/Begg tests, leave-one-out sensitivity analyses, and meta-regression based on publication year. Results: Twenty-one studies comprising 24 independent comparisons were included in the quantitative synthesis. The overall pooled estimate was OR=1.07 (95% CI:0.69-1.66), with substantial heterogeneity (I
=96%). Subgroup analyses yielded the following estimates: TRALI, OR=0.83 (95%CI:0.57-1.21, I
=97%); TACO, OR=1.85 (95%CI:0.54-6.34, I
=93%); donor sex-related paradigms, OR=1.49 (95%CI:1.02-2.17, I
=85%); and AHTR, OR=0.26 (95%CI:0.10-0.64, I
=0%). Between-subgroup differences were statistically significant (P<0.000 1). Publication year was positively correlated with effect size (P=0.001 4). Most studies demonstrated unclear risk of bias across several SYRCLE domains due to incomplete methodological reporting. Conclusion: Animal models of transfusion-related adverse reactions exhibit significant structural heterogeneity across syndrome categories. Therefore, subgroup-specific and narrative syntheses are recommended as the primary presentation framework, rather than relying on a single overall pooled effect. Complement-targeted interventions in AHTR models demonstrated a consistent protective signal. In contrast, TRALI and TACO models require greater standardization in modeling protocols and endpoint definitions to reduce methodological variability.
7.Advances in PI3K/AKT/eNOS/NO pathway in repeated low-intensity red light treatment for myopia
International Eye Science 2026;26(7):1222-1227
Myopia has become a growing public health issue globally, characterized by an earlier age of onset and a rising annual incidence rate, particularly among adolescents. Repeated low-intensity red light therapy(RLRL)has gained widespread attention in recent years as an emerging non-invasive intervention, showing promise for controlling myopia. This article examines the role of the PI3K/AKT signaling pathway in RLRL,specifically advances in promoting choroidal thickening via the phosphorylation mechanism of endothelial nitric oxide synthase(eNOS). Choroidal thickening is recognized as a critical part of myopia control. Activation of the PI3K/AKT/eNOS-NO signaling pathway may attenuate axial elongation by enhancing choroidal blood flow and nutrient supply. Although certain basic and clinical studies have supported this mechanism, many unresolved issues still remain, such as the specific mechanisms of RLRL action, its safety, and its applicability in different populations. This article systematically reviews the relevant research progress, aiming to provide a valuable reference for future studies and explore the application prospects of RLRL in myopia prevention and control.
8.Sinensetin affects malignant biological behaviors of endometrial cancer cells by regulating the Fas/FasL signaling pathway
Li Xingyan1 ; Chen Linxing1 ; He Dan2 ; Peng Qiangli1 ; Hu Zerong3 ; Zhou Ruibin4
Chinese Journal of Cancer Biotherapy 2026;33(7):731-736
[摘 要] 目的:探究甜橙黄酮调节Fas/FasL信号通路对子宫内膜癌细胞恶性生物学行为的影响。方法:选择人子宫内膜癌细胞Ishikawa(ISK)、RL95-2、AN3-CA及KLE为研究对象,采用CCK-8法初步检测4种细胞对甜橙黄酮的敏感性(以120 μmol/L处理48 h)。在此基础上,选择对甜橙黄酮较为敏感的ISK细胞为后续研究对象,分为对照组、L-甜橙黄酮组(40 μmol/L)、M-甜橙黄酮组(80 μmol/L)、H-甜橙黄酮组(120 μmol/L)、H-甜橙黄酮 + si-NC组及H-甜橙黄酮 + si-Fas组。采用CCK-8法、克隆形成实验、Transwell实验及流式细胞术,分别检测各组细胞的增殖、侵袭和凋亡水平。采用血管形成拟态实验检测各组细胞的血管形成拟态能力,WB法检测各组细胞中Fas、FasL及cleaved caspase-8蛋白的表达水平。结果:甜橙黄酮对子宫内膜癌细胞ISK、RL95-2、AN3-CA和KLE的增殖具有抑制作用(均P < 0.01),其中对ISK细胞的作用最显著。在ISK细胞中,与对照组相比,L-甜橙黄酮组、M-甜橙黄酮组、H-甜橙黄酮组的细胞增殖水平、克隆形成数、侵袭细胞数和血管形成拟态分支数均逐渐降低,而细胞凋亡率及Fas、FasL、cleaved caspase-8蛋白表达水平均逐渐升高,且浓度越高,上述指标变化幅度越明显(P < 0.01)。与H-甜橙黄酮 + si-NC组相比,H-甜橙黄酮 + si-Fas组ISK细胞的细胞增殖水平、克隆形成数、侵袭细胞数和血管形成拟态分支数均升高,而细胞凋亡率及Fas、FasL、cleaved caspase-8蛋白表达水平均降低(P < 0.01)。结论:甜橙黄酮抑制子宫内膜癌细胞的增殖、侵袭及血管形成拟态能力,并诱导凋亡,其机制可能与Fas/FasL信号通路的激活有关。
9.Expert Consensus on Clinical Application of Pingxuan Capsules
Yuer HU ; Yanming XIE ; Yaming LIN ; Yuanqi ZHAO ; Yihuai ZOU ; Mingquan LI ; Xiaoming SHEN ; Wei PENG ; Changkuan FU ; Yuanyuan LI
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(1):201-210
As a patented characteristic medicine of Yi ethnic minority, Pingxuan capsules have the effects of nourishing the liver and kidney, pacifying the liver, and subduing Yang. With the main indications of dizziness, headache, palpitations, tinnitus, insomnia, dreaminess, waist and knee soreness caused by liver-kidney deficiency and liver Yang upward disturbance, Pingxuan capsules are widely used in the treatment of posterior circulation ischemic vertigo, vestibular migraine, benign paroxysmal positional vertigo. However, the current knowledge is limited regarding the efficacy, syndrome differentiation, and safety of this medicine. On the basis of summarizing the experience of clinicians and the existing evidence, this study invites clinical experts of traditional Chinese and Western medicine, pharmaceutical experts, and methodological experts from relevant fields across China to conduct evidence-based evaluation of Pingxuan capsules. The evaluation follows the Specifications for the Development of Clinical Expert Consensus on Chinese Patent Medicines issued by the Standardization Office of the China Association of Chinese Medicine, and reaches 5 recommendations and 16 consensus suggestions. The consensus clarifies the clinical applications, efficacy, dose, course of treatment, combination of medicines, precautions, and contraindications of Pingxuan capsules in the treatment of vertigo and explains the safety of clinical application. This consensus is applicable to clinicians (traditional Chinese medicine, Western medicine, and integrated traditional Chinese and Western medicine) and pharmacists in tertiary hospitals, secondary hospitals, and community-level medical and health institutions across China, providing a reference for the rational use of Pingxuan capsules in the treatment of vertigo. It is hoped that the promotion of this consensus can facilitate the rational use of drugs in clinical practice, reduce the risk of drug use, and give full play to the advantages of Pingxuan capsules in the treatment of vertigo diseases. This consensus has been reviewed and published by the China Association of Chinese Medicine, with the number GS/CACM330-2023.
10.Association between heatwave and risk of traffic injuries and its disease burden in Yunnan Province
Haorong MENG ; Jianxiong HU ; Qingping SHI ; Junyue YANG ; Huirong CHENG ; Wenjun MA ; Yang CHEN
Journal of Environmental and Occupational Medicine 2025;42(5):520-527
Background Previous studies found that high temperature and heatwave increase the risk of traffic injuries. The complex road conditions in Yunnan Province result in frequent traffic accidents. However, there is limited evidence on the correlation between heatwave and traffic injuries in Yunnan Province. Objective To assess the association between heatwave events and traffic injuries, to estimate its disease burden, and to identify relevant sensitive groups. Methods We collected data on traffic injury cases and concurrent meteorological information from four surveillance sites in Yunnan Province, China: Dali, Lufeng, Zhaoyang, and Qilin from May to September each year from 2015 to 2023. Traffic injury cases refer to patients who visited the outpatient or emergency departments of local surveillance hospitals for the first time due to traffic injuries. Meteorological data were derived from the fifth generation atmosphericreanalysis dataset of the global climate provided by the European Centre for Medium-Range Weather Forecasts. A time-stratified case-crossover design combined with distributed lag non-linear model was used to analyze the association between short-term exposure to heatwave and traffic injuries. We also conducted subgroup analyses by sex, age, occupation, injury cause, activity at the time of injury occurrence, and severity of injury. Results A total of


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