1.Protective effect and mechanism of genistein on etoposide-induced chondrocyte senescence
Jinhong WANG ; Tianyu CHEN ; Lifang MAO ; Yingjie ZHAO ; Renpeng ZHOU ; Wei HU ; Chao LU
Acta Universitatis Medicinalis Anhui 2026;61(4):636-643
ObjectiveTo investigate the protective effect of genistein (Gen) on etoposide-induced chondrocyte senescence and its underlying mechanism. MethodsThe C28/I2 cell line was treated with different concentrations of Gen and etoposide, and the cell viability was detected by the CCK-8 assay. The senescence model of C28/I2 chondrocytes was induced by etoposide, with Gen intervention. Senescence-associated β-galactosidase (SA-β-gal) staining was performed to detect the senescence-positive rate and staining characteristics of chondrocytes. The expressions of peroxiredoxin 6 (Prdx6), cyclin-dependent kinaseto clarify the functional necessity of Prdx6. ResultsCompared with the etoposide group, the C28/I2 chondrocyte viability significantly increased (P<0.01), the expression ofsenescence-associated proteins p21 and p16 decreased (P<0.01, P<0.05), the expression of senescence-associated genes p21 and p16 reduced (both P<0.01), the fluorescence intensity of senescence-associated proteins p21 and p16 was diminished (P<0.05, P<0.01), and the proportion of SA-β-gal-positive cells decreased (P<0.01) in the Gen+etoposide group. Compared with the Control group, the expression of Prdx6 was downregulated in the etoposide group (P<0.05). Compared with the etoposide group, the expression of Prdx6 was upregulated in the Gen+etoposide group (P<0.01). Compared with the Control group, the GPx activity significantly decreased in the si-Prdx6 group (P<0.01). Furthermore, compared with the si-Prdx6 group, the GPx activity increased in the si-Prdx6+Gen group (P<0.05). Molecular docking results revealed that Gen formed hydrogen bond interactions with the active site of Prdx6. After Prdx6 knockdown, the expression of senescence-associated genes p21 and p16 and the fluorescence intensity of senescence-associated proteins p21 and p16 both increased in the Gen+etoposide+si-Prdx6 group (both P<0.01). ConclusionGen can inhibit etoposide-induced senescence of C28/I2 chondrocytes by upregulating the expression of Prdx6. This study provides potential drug targets and experimental basis for the prevention and treatment of chondrocyte senescence-related diseases.
2.Comparison of burden trends of tracheal, bronchus, and lung cancer in China and countries with different socio-demographic indices from 1990 to 2021
Zhiyang ZHENG ; Tianyu WANG ; Rukonge Audax Praise ; Qishu WEI ; Guiping YU
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2026;33(01):87-96
Objective To analyze the trends in the disease burden of tracheal, bronchus, and lung cancer (TBL) in China and in low-, middle-, and high-socio-demographic index (SDI) countries and regions from 1990 to 2021, with the aim of providing evidence for the formulation of targeted prevention and control strategies. Methods Utilizing data from the Global Burden of Disease (GBD) Study 2021, we extracted TBL-related data from 1990 to 2021, stratified by sex, age group, and year. We assessed the disease burden and trends of TBL across different groups, conducted a decomposition analysis to identify the leading contributors to the change in disease burden, and examined the relationship between disability-adjusted life years (DALYs) and SDI. Results In 2021, the overall burden of TBL in China was substantially higher than that in other groups. The fold-increase in the number of prevalent cases, deaths, and DALYs was significantly greater in China. Moreover, the growth rates of the age-standardized prevalence rate (ASPR), age-standardized mortality rate (ASMR), and age-standardized DALYs rate (ASDR) in China were higher than the overall levels in other SDI countries. In all groups, the ASPR of TBL generally followed a pattern of increasing and then decreasing with age; however, for males in China and middle-SDI countries, the ASPR exhibited a decline in the 80-84 age group. Decomposition analysis revealed that the primary drivers of the increasing TBL burden varied among groups: the rise in DALYs in China and middle-SDI countries was mainly driven by population aging, in low-SDI countries by population growth, and in high-SDI countries by epidemiological transition. While global health inequality in TBL showed some improvement, low-SDI countries continued to bear a disproportionately heavy health burden. Conclusion The disease burden of TBL in China has progressively increased from 1990 to 2021, now ranking among the highest globally. Multiple factors, predominantly driven by population aging, are exacerbating this burden. The burden of TBL is influenced by advancing age, sex differences, and SDI levels. China, along with low- and middle-SDI countries, should implement targeted intervention strategies based on epidemiological findings, including expanding investment in public health services and strengthening healthcare systems, to mitigate the growing burden of TBL.
3.Accuracy of portable and traditional non-contact tonometers in measuring different intraocular pressure levels
Xianyao PENG ; Jiahui WANG ; Jingwei HU ; Jiaqi CHEN ; Wuliang LI ; Tianyu WANG ; Yinan WU ; Xiaoping XU
International Eye Science 2026;26(8):1435-1441
AIM:To evaluate the accuracy of a portable non-contact tonometer(PNCT)compared with a traditional non-contact tonometer(NCT)in measuring intraocular pressure(IOP)at different levels.METHODS:Patients who presented to Ningbo Eye Hospital between January 2025 and January 2026 were retrospectively included. All patients underwent measurements using PNCT, NCT, and Goldmann applanation tonometry(GAT). Based on the GAT measurements, the patients were categorized into a low IOP group(IOP≤16 mmHg), a moderate IOP group(16 mmHg
4.Pulchinenoside A downregulates LRP1 to inhibit the proliferation, migration, and invasion of synovial inflammatory cells
Lifang MAO ; Tianyu CHEN ; Jinhong WANG ; Hao WANG ; Yingjie ZHAO ; Renpeng ZHOU ; Wei HU ; Chao LU
Acta Universitatis Medicinalis Anhui 2026;61(9):1584-1593
ObjectiveTo investigate the effects and mechanisms of pulchinenoside A (PSA) on tumor necrosis factor-α (TNF-α) -induced abnormal proliferation, migration, and invasion of synovial fibroblasts. MethodsA synovitis model was established by stimulating SW982 synovial cells with TNF-α. The low-density lipoprotein receptor-related protein 1 (LRP1) was knocked down using LRP1-specific siRNA or inhibited by the receptor-associated protein (RAP). Cells were treated with various concentrations of PSA, and cell viability was assessed by CCK-8 assay. Protein levels of LRP1, matrix metalloproteinase-3 (MMP3), and N-cadherin were measured by Western blotting. Proliferation was evaluated using an EdU incorporation assay. Migration and invasion capacities were examined by Transwell and wound-healing assays. mRNA expression of LRP1, MMP3, N-cadherin, IL-1β, IL-6, and TNF-α was detected by reverse transcription quantitative real-time PCR (RT-qPCR). Immunofluorescence staining was used to visualize the expression of MMP3 and N-cadherin. The involvement of LRP1 was further verified with the inhibitor RAP. ResultsCompared with the TNF-α-treated model group, PSA treatment significantly reduced SW982 cell viability (P<0.05), downregulated MMP3 and N-cadherin expression (both P<0.01), and decreased the proportion of EdU-positive cells (P<0.05). Moreover, TNF-α stimulation upregulated LRP1 expression compared with normal controls (P<0.01), whereas PSA treatment reversed this increase (P<0.05). LRP1 knockdown or inhibition markedly decreased MMP3 and N-cadherin levels compared with the model group (both P<0.01). Similarly, the combination of PSA and RAP led to significant reductions in MMP3 and N-cadherin expression compared with the model group (both P<0.01). ConclusionPSA inhibits TNF-α-induced abnormal proliferation, migration, and invasion of synovial, at least in part, by downregulating LRP1 expression.
5.Related factors and collaborative action framework of multi-disease co-prevention in children and adolescents
Chinese Journal of School Health 2026;47(9):1364-1368
Abstract
The cooccurrence of multi disease among children and adolescents has become increasingly prominent, necessitating a shift from "single disease separate treatment" to "multi disease co prevention". Focusing on four common health problems in children and adolescents, namely, myopia, depression, overweight/obesity, and spinal abnormalities, the paper systematically reviews the association between four categories of factors, society, environment, family, and individual behavior, and the co occurrence of the aforementioned health problems. The findings indicate that particulate matter 2.5 exposure, light at night, physical inactivity, excessive screen time, and unhealthy diet constitute the primary cross dimensional risk network. Based on these findings, the paper proposes a collaborative action framework involving family, school, and society, emphasizing systematic strategies ranging from upstream environmental governance to downstream behavioral intervention, so as to provide evidence for the practice and policy making of multi disease co-prevention in children and adolescents.
6.Burden and trend of lower respiratory tract infections attributable to non-optimal temperature risk in China,1990-2021
Tianyu LIU ; Junyun ZHOU ; Qinghua WANG ; Jian LI
Chinese Journal of Nosocomiology 2025;35(15):2330-2335
OBJECTIVE To elucidate the burden of lower respiratory tract infections(LRIs)attributable to non-op-timal temperature risk and its changing trends in China from 1990 to 2021,and to provide insights for identifying susceptible populations.METHODS The changing trends in mortality and disability-adjusted life years(DALYs)of LRIs attributed to non-optimal,low and high temperature risks were analyzed through the 2021 global burden of disease(GBD)database.Joinpoint software was used to analyze the trend changes of time series and explore the standardized mortality rate and the standardized DALYs rate of LRIs attributed to non-optimal temperature risk.RESULTS In 2021,LRIs mortality and DALYs rates attributable to non-optimal temperature risk in China were 1.92 per 100,000(down 66.80%from 5.76 per 100,000 in 1990)and 37.99 per 100,000(down 90.47%from 398.77 per 100,000 in 1990),respectively.The burden of LRIs attributed to non-optimal temperature risks was higher in males than that in females,with the mortality rates of 2.86 per 100,000 and 2.48 per 100,000,and DA-LYs rates of 44.90 per 100,000 and 30.75 per 100,000,respectively.The burden of LRIs increased significantly in children under 5 years old and elderly individuals aged 75 and above.From 1990 to 2021,the standardized mortali-ty rate and the standardized DALYs rate of LRIs attributed to non-optimal temperature factors in China showed a declining trend[average annual percentage change(AAPC):-5.04%and-7.33%,respectively].CONCLUSIONS The overall burden of LRIs attributable to non-optimal temperature in China has generally declined from 1990 to 2021.with higher burden in males than that in females,and higher burden in individuals under 5 years old and those aged 75 and above.In China,low temperature risk plays an important role in the non-optimal temperature effect.To reduce the burden of LRIs disease,early intervention measures should be implemented for males,the middle-aged and elderly people and children,and early protection for susceptible populations should be provided based on changes in external environmental temperature,which are of significant public health importance for re-ducing disease burden.
7.Progress on the diagnosis and treatment of infant acute myeloid leukemia
International Journal of Pediatrics 2025;52(6):410-415
Infant acute myeloid leukemia(IAML)is a clinically rare hematological malignancy.Compared to older children,IAML patients usually have significantly higher-risk biological characteristics,namely a low induction remission rate and a high recurrence risk.Although continuous research has been conducted on its molecular mechanisms and treatment methods,the 5-year survival rate by traditional treatment regimens is only 50%~60%.Therefore,targeted therapies,such as CD33 monoclonal antibodies,and cellular immunotherapy,have become key strategies to overcome treatment barriers.This article reviews the progress on the molecular characteristics of IAML,the efficacy and challenges of traditional chemotherapy optimization schemes and targeted therapy,as well as CAR-T cell immunotherapy.
8.MRS2179 improves learning and memory by inhibiting P2Y1R in rats with delayed encephalopathy after acute carbon monoxide poisoning
Yunxia WANG ; Wenping XIANG ; Hui XUE ; Miao KUAI ; Qi YANG ; Tianyu MENG ; Puzhou YANG
Chinese Journal of Neuroanatomy 2025;41(4):461-468
Objective:To explore the role of P2Y1Receptor(P2Y1R)-activated astrocytes in delayed encephalopathy after acute carbon monoxide poisoning(DEACMP).Methods:SD rats were randomly divided into Control,DEACMP,DEACMP+DMSO,and DEACMP+MRS2179 groups.The latter three groups were exposed to static CO inhalation to establish the DEACMP model,while the Control group inhaled air.The rats in DEACMP+MRS2179 group were injec-ted with 3 μl of P2Y1R antagonist MRS2179 with concentration of 1 mmol/L via lateral ventricle,while the DEACMP+DMSO group an equal volume of DMSO.At 14 and 21 day after DEACMP model establishment,the spatial learning and memory ability of rats were observed by Morris water maze,the injury of pyramidal cells in the CA1 area of the hippo-campus was observed by HE staining.The protein levels of glial fibrillary acidic protein(GFAP)and P2Y1receptor(P2Y1R)in the hippocampal tissues of rats were detected by immunohistochemistry and Western blot.The expressions of interleukin-1β(IL-1β),interleukin-6(IL-6)and tumor necrosis factor-α(TNF-α)in the hippocampal tissues of rats were detected by ELISA.Results:In comparison with the Control group,the escape latency was found to be signifi-cantly prolonged in the DEACMP group and the DEACMP+DMSO group.Furthermore,the expression levels of GFAP,P2Y1R,IL-1β,IL-6,and TNF-α were significantly increased in the pyramidal cells of the CA1 region of the hippocam-pal tissue(P<0.05).In contrast,the escape latency was significantly reduced and the expression levels of GFAP,P2Y1R,IL-1β,IL-6,and TNF-α were significantly decreased in the DEACMP+MRS2179 group when compared with the DEACMP+DMSO group(P<0.05).Conclusion:P2Y1R activates astrocytes to release inflammatory factors lead-ing to the onset of cognitive impairment in DEACMP,and inhibition of P2Y1R reduces the expression of inflammatory factors and thus improves cognitive function in DEACMP.
9.Research on the inhibition of glycyrrhizic polysaccharide on the growth and migration of salivary adenoid cystic carcinoma cells
Tangjun LIU ; Tianyu SHAN ; Xinwei WANG ; Dandan SUN ; Jiajia LIU ; Yunxia LIU
STOMATOLOGY 2025;45(11):826-831
Objective To explore the effects of glycyrrhizic polysaccharide(GP)on the biological activity of salivary adenoid cystic carcinoma tumor cells and its mechanisms of anti-tumor action.Methods GP was prepared,and human adenoid cystic carcinoma high-metastatic cell line SACC-LM and low-metastatic cell line SACC-83 were used as target cells.Different concentrations of GP were used for intervention.The cell counting kit-8(CCK-8)assay was employed to detect cell proliferation and apoptosis.Reverse transcrip-tion polymerase chain reaction(RT-PCR)and Western blot experiments were conducted to detect the expression of genes and proteins related to tumor invasion and metastasis.The scratch assay was used to observe the effect of GP on the migration ability of SACC cells.In vivo experiments were conducted to verify the inhibitory effect of GP on tumor cells.Results Glycyrrhiza polysaccharides signifi-cantly inhibited the proliferation and migration of the highly metastatic human adenoid cystic carcinoma cell line SACC-LM by regulating the expression of epithelial-mesenchymal transition(EMT)-related markers.In vivo experiments showed that glycyrrhiza poly-saccharides had no significant hepatotoxicity,could significantly reduce the volume and weight of tumors,and inhibit the growth rate of tumors in nude mice.Conclusion GP has a certain inhibitory effect on the growth and migration ability of SACC.
10.Efficacy and prognosis of surgical patients with traumatic epidural hematoma straddling the transverse sinus
Yaqiong WANG ; Tianyu YANG ; Yitong ZHU ; Jiafa YANG ; Jingshuang YANG ; Mengna LIU ; Zhaofeng LU
Journal of Chinese Physician 2025;27(7):1024-1029
Objective:To analyze the efficacy and prognosis of surgical patients with traumatic epidural hematoma straddling the transverse sinus (TEHSTS).Methods:Clinical data of 4 360 patients with epidural hematoma admitted to the First Affiliated Hospital of Henan University of Science and Technology from January 2010 to April 2024 were collected. Among them, 109 cases (2.5%) were diagnosed with TEHSTS. Based on the rapid progression criteria for posterior fossa epidural hematoma [sudden deterioration of Glasgow Coma Scale (GCS) score within hours (a decrease of ≥1 point in the best motor response and/or a decrease of ≥2 points in GCS score), and progressive enlargement of TEHSTS on repeat CT scan], the timing and method of surgery were determined. Two surgical approaches were compared: combined supratentorial and infratentorial craniotomy (craniotomy group) and modified supratentorial burr-hole drainage (burr-hole group). Clinical data, surgical timing, surgical outcomes, and prognosis were compared between the two groups.Results:There were 57 cases (52.3%) in the craniotomy group and 52 cases (47.7%) in the modified burr-hole group. The proportion of patients presenting with vomiting upon admission was higher in the craniotomy group than in the burr-hole group [77.2%(44/57) vs 59.6%(31/52), P=0.048], and the proportion of patients with linear occipital fractures on CT was also higher in the craniotomy group [91.2%(52/57) vs 75.0%(39/52), P=0.023]. No significant differences were observed in other admission symptoms or CT findings between the two groups (all P>0.05). The GCS score upon admission was significantly lower in the craniotomy group [(11.0±1.0)points] than in the modified burr-hole group [(13.0±1.0)points] ( P<0.05). Four cases in the burr-hole group developed delayed hematomas, including two cases of bilateral delayed epidural hematomas. The preoperative GCS score in the craniotomy group [(9.0±0.5)points] was significantly lower than upon admission [(11.0±1.0)points] ( P<0.05), and the surgical timing was (6.5±1.5)hours after injury. The preoperative GCS score in the burr-hole group [(11.5±0.5)points] was also significantly lower than upon admission [(13.0±1.0)points] ( P<0.05), with surgical timing at (19.5±5.5)hours after injury. Preoperative CT scans showed no significant difference in hematoma volume between the burr-hole group [(35.5±7.5)ml] and the craniotomy group [(36.5±9.5)ml] ( P>0.05). The preoperative GCS score was significantly lower in the craniotomy group than in the burr-hole group ( P<0.05). The GCS scores at 24 hours postoperatively were significantly improved compared to preoperative scores in both groups (all P<0.05). The burr-hole group had significantly shorter operative time, less intraoperative blood loss, shorter intensive care unit (ICU) stay, and shorter hospital stay than the craniotomy group (all P<0.01). The incidence of postoperative pulmonary infection was lower in the burr-hole group than in the craniotomy group ( P<0.05). At 3-month follow-up, the rate of good recovery [Glasgow Outcome Scale (GOS) score≥4 points] was significantly higher in the burr-hole group (98.1%) than in the craniotomy group (93.0%) ( P<0.01). Conclusions:TEHSTS should be managed with different surgical approaches based on admission symptoms, GCS score, and the speed of disease progression. The modified burr-hole drainage procedure is convenient, safe, and associated with better prognosis.


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