1.Research on the Conceptual Boundaries and Connotations of Accessibility to Novel Anticancer Drugs Based on Value Orientation
Hong ZHU ; Hongwei CHEN ; Ya LI ; Meixiang GAO ; Yiru YIN ; Jia'an YANG ; Haohao FENG ; Qunhong WU
Chinese Health Economics 2025;44(6):7-12
Objective:Based on value orientation,it aimed to scientifically define the concept and connotation of accessibility to novel anticancer drugs,in order to deeply understand the nature and current status of the accessibility issues of novel anticancer drugs,and to provide a reference for the formulation and optimization of policies related to novel anticancer drugs.Methods:Data was collected through literature review and expert interviews,and the concept of drug accessibility was defined using the atomic diagram method.Results:The core images include"affordability","availability","high quality"and"patients".The concept of accessibility to novel anticancer drugs is defined as"the process of ensuring the sustainable supply,equitable access,affordability,and rational use of high-quality anticancer drugs to safeguard the realization of patient benefit goals."The connotation of the value orientation in policies on the accessibility of novel anticancer drugs is profoundly reflected in the multi-dimensional value-driven approach to ensure the ultimate benefit of patients,which includes quality,sustainability,equity,affordability,and rational use.Conclusion:The proposal of the concept and connotation of accessibility provides a theoretical basis for a deep understanding of the accessibility of novel anticancer drugs and offers valuable references for subsequent policy-making and practical operations.
2.Investigation of molecular markers of in-hospital death related to acute myocardial infarction
Xuexue HAN ; Tianxing ZHANG ; Hao ZHANG ; Xue LI ; Xingzhu ZHOU ; Shuhui FENG ; Chunlin YIN ; Jinggang XIA
Chinese Journal of Postgraduates of Medicine 2025;48(1):66-75
Objective:To investigate the molecular markers involved in death related to acute myocardial infarction (AMI) and provide new targets for early intervention.Methods:Consecutive patients who hospitalized in department of cardiology, Xuanwu Hospital, Capital Medical University from January 2017 to December 2021 and diagnosed with AMI were enrolled. The clinical factors and markers associated with in-hospital death after AMI were analyzed. In addition, patients diagnosed with AMI hospitalized in department of cardiology, Xuanwu Hospital, Capital Medical University from September 2022 to April 2023 were enrolled. We prospectively analyzed the plasma protein of death related to AMI via Olink Precision Proteomics based on proximity extension assay (PEA) technology.Results:In the retrospective study, 2 325 patients with AMI were analyzed, including 75 patients in the in-hospital death group and 2 250 subjects in the survival group. The overall mortality rate during hospitalization was 3.23% (75/2325). The patients in the death group were older: 72 (64, 80) years vs. 63 (55, 71) years. And Interleukin-6 (IL-6), hypersensitive C-reactive protein (Hs-CRP), leukocyte counts and neutrophil counts were markedly higher in the death group than those in the survival group: 69.0 (26.7, 136.6) ng/L vs. 18.2 (9.4, 36.5) ng/L, 45.7 (28.7, 50.5) mg/L vs. 5.5 (2.0, 17.2) mg/L, 12.0 (9.8, 14.1) ×10 9/L vs. 8.9 (7.2, 11.2) × 10 9/L, 9.8 (7.8, 12.1) ×10 9/L vs. 6.5(4.7, 8.8) ×10 9/L ( P<0.01). In this prospective study, 86 patients with AMI were analyzed. 61 proteins including Insulin-like growth factor-binding protein 1, 2 (IGFBP-1, IGFBP-2), Chitotriosidase-1 (CHIT1), Complement component C1q receptor (CD93) were independently associated with in-hospital death related to AMI ( P<0.05). The differential proteins were mainly enriched in inflammatory response, cell adhesion, cytokine signaling pathway and apoptosis. Moreover, 22 proteins including Urokinase plasminogen activator surface receptor (U-PAR), Trefoil factor 3 (TFF3), Perlecan (PLC), Growth differentiation factor 15 (GDF-15), Junctional adhesion molecule A (JAM-A) were plotted according to a logistic regression model, and the area under the curve (AUC) was more than 0.9, showing the high accuracy in predicting in-hospital death after AMI. Conclusions:Molecular markers of the inflammatory response, cell adhesion, cell growth and apoptosis might be involved in death related to AMI, which provides new targets for early intervention.
3.The changes of serum histone deacetylase 2,lonely G protein-coupled receptor ligand and B-type brain natriuretic peptide in patients with chronic obstructive pulmonary disease and the predictive value for prognosis
Yingbin HU ; Quan LI ; Qi FENG ; Xinting XIA ; Zhanliang YIN
Chinese Journal of Postgraduates of Medicine 2025;48(12):1069-1073
Objective:To explore the changes of serum histone deacetylase 2 (HDAC2), lonely G protein-coupled receptor ligand (Apelin) and B-type brain natriuretic peptide (BNP) in patients with chronic obstructive pulmonary disease (COPD) and the predictive value for prognosis.Methods:A retrospective selection was made of 100 COPD patients (COPD group) admitted to the Fourth People's Hospital of Langfang from May 2022 to May 2023 and 50 healthy individuals who underwent physical examinations during the same period (healthy control group) as the research subjects. The levels of serum HDAC2, Apelin and BNP in the two groups were compared. The levels of HDAC2, Apelin and BNP in COPD patients with different clinical characteristics were compared. The correlation among serum HDAC2, Apelin and BNP in COPD patients were analyzed by Spearman test. The predictive value of serum HDAC2, Apelin and BNP for the prognosis of patients with COPD was analyzed by the receiver operating characteristic (ROC) curve.Results:The level of HDAC2 in the COPD group was lower than that in the healthy control group, the levels of Apelin and BNP were higher than those in the healthy control group: (2.38 ± 0.56) U/L vs. (7.51 ± 1.33) U/L, (491.62 ± 53.82) ng/L vs. (337.19 ± 46.52) ng/L, (211.05 ± 23.46) ng/L vs. (37.52 ± 4.32) ng/L, there were statistical differences ( P<0.05). COPD patients with different clinical characteristics, including those in acute exacerbation and stable stages, mild, moderate and severe cases, COPD patients with pulmonary function grades Ⅱ, Ⅲ and Ⅳ, COPD patients with and without pulmonary hypertension, and patients with poor prognosis and good prognosis, there were statistically significant differences in the levels of HDAC2, Apelin and BNP ( P<0.05). The Spearman test results indicated that in COPD patients, serum HDAC2 was negatively correlated with Apelin ( r = - 0.469, P = 0.001), HDAC2 was negatively correlated with BNP ( r = - 0.435, P = 0.001), and Apelin was positively correlated with BNP ( r = 0.418, P = 0.001). The results of ROC curve analysis indicated that the combined detection of HDAC2, Apelin and BNP had the highest area under the curve for predicting the prognosis of COPD patients (0.954), with a sensitivity of 81.66%. Conclusions:COPD patients have lower HDAC2 and higher Apelin and BNP levels. The three indicators are correlated to a certain extent, and their levels are closely related to the clinical characteristics of patients. The combined detection of the three indicators can be used as important predictive indicators for the prognosis of COPD patients.
4.The development and validation of the quick self-assessment questionnaire for cochlear implant out-come
Carol PANG ; Qingyuan FENG ; Li YIN ; Yongmao CAO ; Shanxian GAO ; Yanni CHEN ; Xiaoqiang ZHANG ; Qiaoling SHI ; Zhen SU ; Mingyuan SUN
Journal of Audiology and Speech Pathology 2025;33(5):454-459
Objective To develop and validate a"quick self-assessment questionnaire for cochlear implant out-come(QSACI)".Methods A research team,composed of audiologists,otolaryngologists,data analysis experts,and cochlear implant(CI)recipients,was formed to establish objectives,research subject criteria,and framework of the QSACI.An item pool was creaed through literature review and brainstorming.Question items were evaluated and screened,and the framework and answer options of the questionnaire were established.The comprehensibility,etc.,was analyzed and refined through pilot test,interviews,and expert consultation,leading to the development of the final version.A total of 39 post-lingually deafened adults with known stable outcomes completed the question-naire.The split-half and test-retest reliabilty of the questionnaire was analyzed,and the validity was quantitatively analyzed by comparing scores with the categories of auditory performance(CAP)scores.Results The initial item pool of the questionnaire had 18 items,and the final questionnaire consisted of 12 questions in four dimensions:com-munication status,audiological status,medical factors,and other factors.The average score of 39 recipients was 88.81±6.17 and CAP was 6.19±0.94.The questionnaire showed good reliability and validity,with a Cronbach's alpha coefficient of 0.71 and a test-retest reliability of 0.824(P<0.05).The criterion-related validity,assessed by the correlation between the self-assessment questionnaire scores and CAP scores,showed a significant moderate pos-itive correlation(r=0.512,P<0.05).The correlation coefficient between self-assessment and professional assess-ment was 0.720(P<0.05),indicating a significant correlation.The area under the receiver operating characterstic(ROC)curve was 0.82(P<0.05),the cutoff values corresponding to the maximal Youden index were 82.5 and 88.6,therefore score of 85 was taken as the median threshold score of judgement.Conclusion The QSACI reflects the post-imlplant outcomes,and it can serve as a tool for people with postlingually deafness and their families to un-derstand the eligbility of CI and the expected outcomes,helping to establish realistic expectations before CI surgery.
5.Association between dynamic indexes of maternal progesterone in the first trimester of pregnancy and fetal head circumference growth and development
Hui NIU ; Juan XIN ; Jinlu LIANG ; Jiayuan FENG ; Sijing ZHU ; Xiaoxue LI ; Yin YANG ; Liu FANG ; Mengfei SUN ; Ziyi CHEN ; Wenfang YANG
Journal of Xi'an Jiaotong University(Medical Sciences) 2025;46(5):871-879
Objective To explore the association between dynamic indexes of maternal progesterone in early pregnancy and the average level and growth rate of fetal head circumference(HC)in mid-and late pregnancy.Methods This study adopted a retrospective cohort design and included 255 singleton pregnant women in the maternal and infant cohort of The First Affiliated Hospital of Xi'an Jiaotong University from January 2015 to December 2024.The progesterone levels of their early venous blood were detected and divided into two groups of progesterone trajectories,namely,fluctuating type and increasing type,by morphology.The dynamic indicators of progesterone in early pregnancy were constructed:cumulative dynamic deviation index in the first trimester(CDDI-P1T),gestational age at progesterone peak(GA-PP),and maximal relative progesterone decline in the first trimester(MRD-P1T).The average head circumference level and linear growth rate of the fetuses in the middle and late pregnancy were calculated.Generalized linear regression(GLM)was used to analyze the linear association between progesterone dynamic indicators and head circumference development.The key gestational weeks of progesterone affecting fetal head development were explored by linear regression of gestational weeks.Ordinary least squares(OLS)regression and restricted cubic spline(RCS)plots were used to draw the nonlinear association between progesterone dynamic indicators and head circumference.Results Among the 255 pregnant women included,92.5%of the progesterone trajectories in early pregnancy were fluctuating,and 7.5%were increasing.The growth rates of the increasing progesterone trajectory group were higher in the second and third trimesters than in the fluctuating group,but the differences were not statistically significant(all P>0.05).GLM analysis showed that for every 1 unit increase in CDDI-P1T,the head circumference in the middle and late pregnancy increased significantly by 1.574 cm and 1.193 cm(Z=3.714,2.885,P<0.01).The delay of GA-PP was negatively correlated with the head circumference in the middle pregnancy(β=-0.190 cm,95%CI:-0.339--0.041,P=0.010)but positively correlated with the head circumference growth rate in the late pregnancy(β=0.022 cm/week,95%CI:0.003-0.041,P=0.025).A 10%decrease in the decline of CDDI-P1T increased the head circumference in the middle pregnancy by 0.200 cm(95%CI:0.016-0.384,P=0.033),and a 100%decrease in the decline increased the head circumference growth rate in the late pregnancy by 0.201 cm/week(95%CI:0.002-0.399,P=0.048).The analysis of the key time window showed that for every 20 nmol/L increase in progesterone during 9.5-13 weeks of pregnancy,the mid-term head circumference increased by 0.035-0.166 cm(Z=2.452-3.517,allP<0.05),and the late-term head circumference increased by 0.767 cm during 9-13 weeks of pregnancy(Z=2.452-3.517,all P<0.05).When progesterone increased during 9.5-10.5 weeks of pregnancy,the growth rate of mid-term head circumference increased by 0.013-0.023 cm/week(Z=2.074-2.243,all P<0.01).When progesterone increased during 8.5-10.5 weeks of pregnancy,the growth rate of late-term head circumference increased by 0.010-0.026 cm/week(Z=2.061-3.137,all P<0.05).Conclusion Progesterone dynamic index is a new sensitive tool for evaluating fetal head circumference development.There is a stage-specific window period for progesterone regulation.9.5-13 weeks of pregnancy is the critical period for progesterone to affect head circumference growth,and 9.5-10.5 weeks of pregnancy is the core window for regulating the growth rate of head circumference.Therefore,it is necessary to combine progesterone dynamic index and time window for individualized intervention to promote the transformation of prenatal care from pregnancy maintenance to eugenics intervention.
6.Association of afterschool physical exercise and sleep quality among preschool children in Minhang district of Shanghai
Li-li ZHANG ; Yi-dan JIA ; Xue-qing MIAO ; Xiao-feng YIN ; Hui-jing SHI ; Yan-qi HU
Fudan University Journal of Medical Sciences 2025;52(5):657-663
Objective To observe the association between afterschool physical exercise and sleep quality among preschool children,and to explore the proper afterschool physical exercise model for better sleep quality.Methods A cross-sectional study was conducted.From Apr to Jun 2024,a total of 1 430 children from three public kindergartens in Minhang district were enrolled to participate in the survey.Parents were invited to complete the basic sociodemographic information,afterschool physical exercise information and the Children's Sleep Habits Questionnaire.One-way ANOVA and linear mixed effects models were used to explore the relationship between afterschool exercise and sleep quality.Results A total of 1 430 questionnaires were sent out and 1 384 were recovered with a recovery rate of 96.78%.Among them 1 366 were valid,with an effective rate of 95.52%.The average age of the children was(5.19±0.87)years old with gender ration of 1.07∶1(male:female).The prevalence of poor sleep quality was 80.60%(regarding a CSHQ total score>41 as cutoff).A one-way ANOVA indicated that time on afterschool physical exercise was significantly associated with sleep duration,Night waking,and sleep onset delay(P<0.05).After adjusting for age,gender,the only child or not,main caregiver,and parental education and occupation,linear mixed effects models showed that engaging in afterschool physical activity for at least 180 mins per week has a statistically significant predictive effect on sleep duration scores(β=-0.50,z=-4.52,95%CI:-0.72,-0.28,P<0.001),night waking scores(β=-0.16,z=-2.34,95%CI:-0.29,-0.02,P=0.020),and sleep onset delay scores(β=-0.14,z=-2.35,95%CI:-0.26,-0.02,P=0.019).Conclusion Afterschool exercise was significantly associated with sleep quality among preschool children in Minhang district of Shanghai.The time≥180 min on afterschool exercise per week in preschool children was significantly positively associated with maintaining sleep duration,reducing night wakings and shortening the latency to fall asleep.The habit of afterschool exercise and the time on afterschool exercise should be emphasized by parents and the society to improve sleep quality among preschool children.
7.Exploration on the Effects of Bushen Huoxue Prescription on Rabbit Intervertebral Disc Degeneration Based on the RIPK1/RIPK3/MLKL Signaling Pathway
Wei PENG ; Liguo ZHU ; Xunlu YIN ; Jie LUO ; Kexin YANG ; Minshan FENG ; Jie YU ; Long LIANG ; Linghui LI ; Jiawen ZHAN ; Tao HAN ; Mingyi LUO ; Dian ZHANG
Chinese Journal of Information on Traditional Chinese Medicine 2025;32(2):71-77
Objective To observe the effects of Bushen Huoxue Prescription on the pathway related to necroptosis of nucleus pulposus cells in a model rabbit of intervertebral disc degeneration;To explore its mechanisms in delaying intervertebral disc degeneration.Methods A intervertebral disc degeneration rabbit model was established using the spinal instability method.Totally 40 model rabbits were randomly divided into model group,ibuprofen group and Bushen Huoxue Prescription low-,medium-and high-dosage groups.Additionally,a normal control group and a sham-operation group were set up,with 8 rabbits in each group.Each treatment groups received the corresponding drugs via gavage for two consecutive weeks.HE staining was used to observe morphology of nucleus pulposus tissue,transmission electron microscopy was used to observe ultrastructure in nucleus pulposus cells,immunohistochemical staining was used to assess the expressions of Aggrecan and Collagen Ⅱ in nucleus pulposus tissue,Western blot was used to detect the expressions of p-RIPK1,p-RIPK3 and p-MLKL protein in nucleus pulposus tissue.Results Compared with the sham-operation group,the model group showed a significant decrease in nucleus pulposus cells,disordered cell arrangement,reduced extracellular matrix,interrupted cell membrane continuity under transmission electron microscopy,organelle swelling,nuclear membrane disruption,partial chromatin loss,and positive expression of Aggrecan and Collagen Ⅱ in nucleus pulposus tissue decreased(P<0.01),while the expressions of p-RIPK1,p-RIPK3 and p-MLKL protein significantly increased(P<0.01).Compared with the model group,the treatment groups showed an increased number of nucleus pulposus cells with orderly arrangement and more extracellular matrix,the ultrastructural damage of the cell membrane,organelle and nucleus in nucleus pulposus cells was partially restored under transmission electron microscopy,the positive expressions of Aggrecan and Collagen Ⅱ significantly increased in Bushen Huoxue Prescription medium-and high-dosage groups and the ibuprofen group(P<0.05,P<0.01),while the expressions of p-RIPK1,p-RIPK3 and p-MLKL protein significantly decreased(P<0.05,P<0.01).Conclusion Bushen Huoxue Prescription may delay intervertebral disc degeneration of the model rabbit by inhibiting the expressions of p-RIPK1,p-RIPK3 and p-MLKL protein in nucleus pulposus cells,and promoting the generation of extracellular matrix components Aggrecan and Collagen Ⅱ.
8.Exploration on the Effect of Bushen Huoxue Prescription on Necroptosis in Human Nucleus Pulposus Cells Based on RIPK1/RIPK3/MLKL Pathway
Wei PENG ; Liguo ZHU ; Xunlu YIN ; Kexin YANG ; Jie LUO ; Minshan FENG ; Jie YU ; Linghui LI ; Jiawen ZHAN ; Tao HAN ; Long LIANG ; Mingyi LUO ; Dian ZHANG
Chinese Journal of Information on Traditional Chinese Medicine 2025;32(3):69-75
Objective To observe the effects of Bushen Huoxue Prescription on pressure-induced necroptosis in human nucleus pulposus cells and the expressions of RIPK1/RIPK3/MLKL pathway;To explore its potential mechanism in delaying intervertebral disc degeneration.Methods Human primary nucleus pulposus cells were cultured in vitro,and a model of nucleus pulposus cell degeneration was established using continuous load pressure method.After modeling,the nucleus pulposus cells were divided into model group,Bushen Huoxue Prescription group and inhibitor group,blank serum,Bushen Huoxue Prescription containing serum and necroptotic apoptosis inhibitor(Nec-1)intervention were administered,respectively.Normal group nucleus pulposus cells were cultured routinely.AO/EB fluorescence dual staining method was used for detecting cell apoptosis,flow cytometry was used to detect the necroptosis rate of nucleus pulposus cells,Western blot was used to detect the protein expressions of p-receptor interacting protein kinase(RIPK)1,p-RIPK3 and p-mixed lineage kinase domain like protein(MLKL),RT-qPCR was used to detect the mRNA expressions of RIPK1,RIPK3 and MLKL.Results Compared with the normal group,the model group showed more red fluorescence under AO/EB staining of nucleus pulposus cells,which were round and condensed,the necroptosis rate of nucleus pulposus cells increased(P<0.05),the protein expressions of p-RIPK1,p-RIPK3 and p-MLKL increased(P<0.05,P<0.01),while there was no significant difference in RIPK1 mRNA expression(P>0.05),and RIPK3 and MLKL mRNA expression increased(P<0.01).Compared with the model group,Bushen Huoxue Prescription group and the inhibitor group had less red condensed chromatin in the nucleus pulposus cells,Bushen Huoxue Prescription group had a lower rate of necroptosis(P<0.05),while the inhibitor group showed a decreasing trend in necroptosis rate(P>0.05),the protein expressions of p-RIPK1,p-RIPK3 and p-MLKL decreased in Bushen Huoxue Prescription group and the inhibitor group(P<0.05,P<0.01),while there was no significant difference in RIPK1 mRNA expression(P>0.05),and RIPK3 and MLKL mRNA expressions decreased(P<0.01).Conclusion Bushen Huoxue Prescription can alleviate pressure-induced damage to nucleus pulposus cells and inhibit necroptosis,thereby slowing the progression of intervertebral disc degeneration.Its mechanism may be related to the RIPK1/RIPK3/MLKL pathway mediated necroptosis.
9.Exploration on the Effects of Bushen Huoxue Prescription on Rabbit Intervertebral Disc Degeneration Based on the RIPK1/RIPK3/MLKL Signaling Pathway
Wei PENG ; Liguo ZHU ; Xunlu YIN ; Jie LUO ; Kexin YANG ; Minshan FENG ; Jie YU ; Long LIANG ; Linghui LI ; Jiawen ZHAN ; Tao HAN ; Mingyi LUO ; Dian ZHANG
Chinese Journal of Information on Traditional Chinese Medicine 2025;32(2):71-77
Objective To observe the effects of Bushen Huoxue Prescription on the pathway related to necroptosis of nucleus pulposus cells in a model rabbit of intervertebral disc degeneration;To explore its mechanisms in delaying intervertebral disc degeneration.Methods A intervertebral disc degeneration rabbit model was established using the spinal instability method.Totally 40 model rabbits were randomly divided into model group,ibuprofen group and Bushen Huoxue Prescription low-,medium-and high-dosage groups.Additionally,a normal control group and a sham-operation group were set up,with 8 rabbits in each group.Each treatment groups received the corresponding drugs via gavage for two consecutive weeks.HE staining was used to observe morphology of nucleus pulposus tissue,transmission electron microscopy was used to observe ultrastructure in nucleus pulposus cells,immunohistochemical staining was used to assess the expressions of Aggrecan and Collagen Ⅱ in nucleus pulposus tissue,Western blot was used to detect the expressions of p-RIPK1,p-RIPK3 and p-MLKL protein in nucleus pulposus tissue.Results Compared with the sham-operation group,the model group showed a significant decrease in nucleus pulposus cells,disordered cell arrangement,reduced extracellular matrix,interrupted cell membrane continuity under transmission electron microscopy,organelle swelling,nuclear membrane disruption,partial chromatin loss,and positive expression of Aggrecan and Collagen Ⅱ in nucleus pulposus tissue decreased(P<0.01),while the expressions of p-RIPK1,p-RIPK3 and p-MLKL protein significantly increased(P<0.01).Compared with the model group,the treatment groups showed an increased number of nucleus pulposus cells with orderly arrangement and more extracellular matrix,the ultrastructural damage of the cell membrane,organelle and nucleus in nucleus pulposus cells was partially restored under transmission electron microscopy,the positive expressions of Aggrecan and Collagen Ⅱ significantly increased in Bushen Huoxue Prescription medium-and high-dosage groups and the ibuprofen group(P<0.05,P<0.01),while the expressions of p-RIPK1,p-RIPK3 and p-MLKL protein significantly decreased(P<0.05,P<0.01).Conclusion Bushen Huoxue Prescription may delay intervertebral disc degeneration of the model rabbit by inhibiting the expressions of p-RIPK1,p-RIPK3 and p-MLKL protein in nucleus pulposus cells,and promoting the generation of extracellular matrix components Aggrecan and Collagen Ⅱ.
10.Exploration on the Effect of Bushen Huoxue Prescription on Necroptosis in Human Nucleus Pulposus Cells Based on RIPK1/RIPK3/MLKL Pathway
Wei PENG ; Liguo ZHU ; Xunlu YIN ; Kexin YANG ; Jie LUO ; Minshan FENG ; Jie YU ; Linghui LI ; Jiawen ZHAN ; Tao HAN ; Long LIANG ; Mingyi LUO ; Dian ZHANG
Chinese Journal of Information on Traditional Chinese Medicine 2025;32(3):69-75
Objective To observe the effects of Bushen Huoxue Prescription on pressure-induced necroptosis in human nucleus pulposus cells and the expressions of RIPK1/RIPK3/MLKL pathway;To explore its potential mechanism in delaying intervertebral disc degeneration.Methods Human primary nucleus pulposus cells were cultured in vitro,and a model of nucleus pulposus cell degeneration was established using continuous load pressure method.After modeling,the nucleus pulposus cells were divided into model group,Bushen Huoxue Prescription group and inhibitor group,blank serum,Bushen Huoxue Prescription containing serum and necroptotic apoptosis inhibitor(Nec-1)intervention were administered,respectively.Normal group nucleus pulposus cells were cultured routinely.AO/EB fluorescence dual staining method was used for detecting cell apoptosis,flow cytometry was used to detect the necroptosis rate of nucleus pulposus cells,Western blot was used to detect the protein expressions of p-receptor interacting protein kinase(RIPK)1,p-RIPK3 and p-mixed lineage kinase domain like protein(MLKL),RT-qPCR was used to detect the mRNA expressions of RIPK1,RIPK3 and MLKL.Results Compared with the normal group,the model group showed more red fluorescence under AO/EB staining of nucleus pulposus cells,which were round and condensed,the necroptosis rate of nucleus pulposus cells increased(P<0.05),the protein expressions of p-RIPK1,p-RIPK3 and p-MLKL increased(P<0.05,P<0.01),while there was no significant difference in RIPK1 mRNA expression(P>0.05),and RIPK3 and MLKL mRNA expression increased(P<0.01).Compared with the model group,Bushen Huoxue Prescription group and the inhibitor group had less red condensed chromatin in the nucleus pulposus cells,Bushen Huoxue Prescription group had a lower rate of necroptosis(P<0.05),while the inhibitor group showed a decreasing trend in necroptosis rate(P>0.05),the protein expressions of p-RIPK1,p-RIPK3 and p-MLKL decreased in Bushen Huoxue Prescription group and the inhibitor group(P<0.05,P<0.01),while there was no significant difference in RIPK1 mRNA expression(P>0.05),and RIPK3 and MLKL mRNA expressions decreased(P<0.01).Conclusion Bushen Huoxue Prescription can alleviate pressure-induced damage to nucleus pulposus cells and inhibit necroptosis,thereby slowing the progression of intervertebral disc degeneration.Its mechanism may be related to the RIPK1/RIPK3/MLKL pathway mediated necroptosis.

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