1.Choline kinase alpha silencing affects proliferation and apoptosis in glioma cells by inducing mitochondrial dysfunction
Yang ZHAO ; Jialin LI ; Xiao WU ; Yourui ZOU ; Yang LIU ; Hui MA
Chinese Journal of Tissue Engineering Research 2026;30(1):130-138
BACKGROUND:Choline kinase alpha is a key enzyme in phospholipid metabolism,involved in the synthesis of phosphatidylcholine,and plays an important role in maintaining cell membrane integrity and signal transduction.Research has shown that choline kinase alpha is highly expressed in various tumors and is closely related to cell proliferation,metabolic reprogramming,and tumor progression.As a potential therapeutic target,the role of choline kinase alpha in tumor metabolism and mitochondrial function still needs further exploration.OBJECTIVE:To evaluate the effects and the underlying mechanisms of choline kinase alpha on the proliferation and apoptosis of glioma U87MG and U251 cells.METHODS:Short hairpin RNA of choline kinase alpha and its empty vector control were transfected into U87MG and U251 glioma cells.Mitochondrial morphology was observed by transmission electron microscopy.Mitochondrial structure and functional protein levels were assessed by western blot assay.Reactive oxygen species levels in cells were measured using a reactive oxygen species fluorescent probe.Mitochondrial membrane potential was assessed with a JC-1 assay.Intracellular adenosine triphosphate levels were measured by chemiluminescence.Cell proliferation was evaluated using a CCK-8 assay.Apoptosis levels were analyzed by flow cytometry.The mitochondrial fission inhibitor Mdivi-1 was used to protect the mitochondrial function of the choline kinase α-silenced lentiviral cells.Finally,U87MG cells were subcutaneously injected to construct a subcutaneous tumor model in nude mice.The tumor growth in nude mice was observed before and after choline kinase alpha silencing and after the use of the mitochondrial fission inhibitor Mdivi-1.RESULTS AND CONCLUSION:(1)Compared with the empty control group,the mitochondria of U87MG and U251 cells in the choline kinase alpha silencing lentivirus group exhibited significant structural abnormalities in mitochondria,such as vacuolization and cristae disruption.The expressions of mitochondrial structure and function-related proteins TOM20,ACO2,and ATP5A were significantly decreased(P<0.01,P<0.001),the expression of SOD2 was significantly increased(P<0.01,P<0.000 1),the fluorescence intensity of reactive oxygen species was significantly increased(P<0.01),the mitochondrial membrane potential and adenosine triphosphate level were significantly decreased(P<0.01,P<0.001),the cell proliferation ability was reduced(P<0.01),and the apoptosis level was increased(P<0.001).(2)Following Mdivi-1 treatment,the fluorescence intensity of reactive oxygen species in U87MG and U251 cells decreased(P<0.05,P<0.01),mitochondrial membrane potential and adenosine triphosphate levels were significantly restored(P<0.05,P<0.01,P<0.001),cell proliferation ability was improved(P<0.05,P<0.01),and apoptosis level was decreased(P<0.05).(3)In addition,the in vitro subcutaneous tumor formation experiment of nude mice showed that compared with the empty control group,the mass and growth rate of subcutaneous tumors formed by U87MG cells in the choline kinase alpha silencing lentivirus group were significantly reduced(P<0.000 1).After Mdivi-1 treatment,the mass and growth rate of tumors were significantly increased(P<0.000 1).(4)The results show that choline kinase alpha silencing affects the proliferation and apoptosis of glioma cells by inducing mitochondrial dysfunction.
2.Combined Therapy of Traditional Chinese and Western Medicine for Hepatitis B Virus Infection: A Review
Xuan WU ; Hui LI ; Jian HUANG ; Xikun YANG ; Yan ZENG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(2):279-288
Hepatitis B virus (HBV) infection is the primary cause of viral hepatitis and represents a substantial disease burden in China. However, effective and safe agents capable of completely eliminating HBV DNA are still lacking. In modern medicine, anti-HBV strategies mainly target covalently closed circular DNA (cccDNA), among other mechanisms, and multiple novel drugs are currently under clinical investigation. Traditional medicine has been shown to exert anti-HBV effects through direct pathways, such as blocking viral entry, as well as indirect pathways, including the regulation of programmed cell death. Studies have confirmed that the integration of traditional Chinese medicine (TCM) and Western medicine in treating HBV infection and its related complications offers complementary advantages, particularly in enhancing HBV clearance rates, improving liver function, preventing various complications, and delaying the progression from hepatic fibrosis to hepatocellular carcinoma. This review focuses on advances in anti-HBV research involving TCM, Western medicine, and their integrated application, aiming to provide a basis for integrated HBV therapy and new drug development.
3.Yimei Baijiang Formula Treats Colitis-associated Colorectal Cancer in Mice via NF-κB Signaling Pathway
Qian WU ; Xin ZOU ; Chaoli JIANG ; Long ZHAO ; Hui CHEN ; Li LI ; Zhi LI ; Jianqin LIU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(3):119-130
ObjectiveTo explore the effects of Yimei Baijiang formula (YMBJF) on colitis-associated colorectal cancer (CAC) and the nuclear factor kappaB (NF-κB) signaling pathway in mice. MethodsSixty male Balb/c mice of 4-6 weeks old were randomized into 6 groups: Normal, model, capecitabine (0.83 g
4.Yimei Baijiang Formula Treats Colitis-associated Colorectal Cancer in Mice via NF-κB Signaling Pathway
Qian WU ; Xin ZOU ; Chaoli JIANG ; Long ZHAO ; Hui CHEN ; Li LI ; Zhi LI ; Jianqin LIU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(3):119-130
ObjectiveTo explore the effects of Yimei Baijiang formula (YMBJF) on colitis-associated colorectal cancer (CAC) and the nuclear factor kappaB (NF-κB) signaling pathway in mice. MethodsSixty male Balb/c mice of 4-6 weeks old were randomized into 6 groups: Normal, model, capecitabine (0.83 g
5.Mechanisms of Liuwei Buqi Prescription in Regulating Macrophage Efferocytosis for Treatment of Lung-kidney Qi Deficiency Syndrome in COPD Based on Nrf2/MARCO Signaling Pathway
Jiankang JIANG ; Hui WANG ; Lu ZHANG ; Zegeng LI ; Jiabing TONG ; Fan WU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(7):222-229
ObjectiveTo investigate the mechanisms by which Liuwei Buqi prescription (LWBQ) regulates alveolar macrophage efferocytosis and improves inflammatory responses in rats with chronic obstructive pulmonary disease (COPD) characterized by lung-kidney Qi deficiency based on the nuclear factor erythroid 2-related factor 2 (Nrf2)/macrophage receptor with collagenous structure (MARCO) pathway. MethodsSuccessfully modeled rats were randomly divided into a model group, low-dose LWBQ group (LWBQ-L, 2.25 g·kg-1·d-1), medium-dose LWBQ group (LWBQ-M, 4.5 g·kg-1·d-1), high-dose LWBQ group (LWBQ-H, 9 g·kg-1·d-1), and aminophylline group (AMIN, 50 mg·kg-1·d-1), with 8 rats in each group. Another 8 healthy rats were included as the blank group. Except for the blank group, rats in the remaining groups were subjected to smoke exposure combined with forced swimming, intratracheal lipopolysaccharide (LPS) instillation, and subcutaneous hydrocortisone injection to establish a COPD model with lung-kidney Qi deficiency. After successful modeling, rats were administered different doses of LWBQ or AMIN by gavage. Body weight, fur condition, and oral secretions were observed. Pulmonary function was measured using an animal lung function analyzer. Enzyme-linked immunosorbent assay (ELISA) was used to detect the expression levels of interferon-γ (IFN-γ), interleukin-6 (IL-6), interleukin-1 (IL-1), and tumor necrosis factor-α (TNF-α) in bronchoalveolar lavage fluid (BALF) and serum (SER). Hematoxylin-eosin (HE) staining was used to examine pathological changes in lung tissue. Giemsa staining was performed to detect eosinophils, basophils, and neutrophils in BALF. Terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL) was used to detect apoptosis in lung tissue. Western blot and real-time polymerase chain reaction (Real-time PCR) were employed to determine the protein and mRNA expression levels of efferocytosis-related proteins growth arrest-specific gene 6 (GAS6), milk fat globule-epidermal growth factor 8 (MFG-E8), and pathway-related proteins Nrf2 and MARCO in lung tissue. ResultsCompared with the blank group, the model group showed reduced food intake, nasal and oral secretions with sputum, and decreased body weight (P<0.01), decreased peak expiratory flow (PEF) (P<0.01), increased forced vital capacity (FVC) (P<0.01), and decreased forced expiratory volume in 0.3 s/forced vital capacity [FEV0.3/FVC (%)] (P<0.01). The expression levels of IFN-γ, IL-6, IL-1, and TNF-α in BALF and SER were increased (P<0.01). Lung tissue exhibited structural destruction, hyperplasia, inflammatory exudation, increased apoptotic cells, and increased mean optical density (P<0.01). The protein and mRNA expression levels of GAS6, MFG-E8, and MARCO, as well as Nrf2 mRNA expression, were increased (P<0.01). Compared with the model group, the LWBQ groups showed increased food intake, reduced nasal and oral secretions with sputum, and increased body weight (P<0.05, P<0.01). PEF was increased (P<0.01). FVC was increased in rats treated with low- and medium-dose LWBQ (P<0.01), and FEV0.3/FVC (%) was increased in rats treated with medium- and high-dose LWBQ (P<0.05, P<0.01). The expression levels of IFN-γ, IL-6, IL-1, and TNF-α in BALF and SER were decreased (P<0.01). Lung tissue structure was relatively intact, with improvement in hyperplasia and inflammatory exudation. The number of apoptotic cells in lung tissue was reduced, and mean optical density was decreased (P<0.05, P<0.01). The protein and mRNA expression levels of efferocytosis-related proteins GAS6 and MFG-E8 and pathway-related proteins Nrf2 and MARCO were increased (P<0.01). ConclusionLWBQ can alleviate pulmonary and systemic inflammation, improve lung function, and reduce lung tissue damage in rats with COPD characterized by lung-kidney Qi deficiency. The mechanism may be related to enhancement of alveolar macrophage efferocytosis through regulation of the Nrf2/MARCO pathway.
6.Choline kinase alpha silencing affects proliferation and apoptosis in glioma cells by inducing mitochondrial dysfunction
Yang ZHAO ; Jialin LI ; Xiao WU ; Yourui ZOU ; Yang LIU ; Hui MA
Chinese Journal of Tissue Engineering Research 2026;30(1):130-138
BACKGROUND:Choline kinase alpha is a key enzyme in phospholipid metabolism,involved in the synthesis of phosphatidylcholine,and plays an important role in maintaining cell membrane integrity and signal transduction.Research has shown that choline kinase alpha is highly expressed in various tumors and is closely related to cell proliferation,metabolic reprogramming,and tumor progression.As a potential therapeutic target,the role of choline kinase alpha in tumor metabolism and mitochondrial function still needs further exploration.OBJECTIVE:To evaluate the effects and the underlying mechanisms of choline kinase alpha on the proliferation and apoptosis of glioma U87MG and U251 cells.METHODS:Short hairpin RNA of choline kinase alpha and its empty vector control were transfected into U87MG and U251 glioma cells.Mitochondrial morphology was observed by transmission electron microscopy.Mitochondrial structure and functional protein levels were assessed by western blot assay.Reactive oxygen species levels in cells were measured using a reactive oxygen species fluorescent probe.Mitochondrial membrane potential was assessed with a JC-1 assay.Intracellular adenosine triphosphate levels were measured by chemiluminescence.Cell proliferation was evaluated using a CCK-8 assay.Apoptosis levels were analyzed by flow cytometry.The mitochondrial fission inhibitor Mdivi-1 was used to protect the mitochondrial function of the choline kinase α-silenced lentiviral cells.Finally,U87MG cells were subcutaneously injected to construct a subcutaneous tumor model in nude mice.The tumor growth in nude mice was observed before and after choline kinase alpha silencing and after the use of the mitochondrial fission inhibitor Mdivi-1.RESULTS AND CONCLUSION:(1)Compared with the empty control group,the mitochondria of U87MG and U251 cells in the choline kinase alpha silencing lentivirus group exhibited significant structural abnormalities in mitochondria,such as vacuolization and cristae disruption.The expressions of mitochondrial structure and function-related proteins TOM20,ACO2,and ATP5A were significantly decreased(P<0.01,P<0.001),the expression of SOD2 was significantly increased(P<0.01,P<0.000 1),the fluorescence intensity of reactive oxygen species was significantly increased(P<0.01),the mitochondrial membrane potential and adenosine triphosphate level were significantly decreased(P<0.01,P<0.001),the cell proliferation ability was reduced(P<0.01),and the apoptosis level was increased(P<0.001).(2)Following Mdivi-1 treatment,the fluorescence intensity of reactive oxygen species in U87MG and U251 cells decreased(P<0.05,P<0.01),mitochondrial membrane potential and adenosine triphosphate levels were significantly restored(P<0.05,P<0.01,P<0.001),cell proliferation ability was improved(P<0.05,P<0.01),and apoptosis level was decreased(P<0.05).(3)In addition,the in vitro subcutaneous tumor formation experiment of nude mice showed that compared with the empty control group,the mass and growth rate of subcutaneous tumors formed by U87MG cells in the choline kinase alpha silencing lentivirus group were significantly reduced(P<0.000 1).After Mdivi-1 treatment,the mass and growth rate of tumors were significantly increased(P<0.000 1).(4)The results show that choline kinase alpha silencing affects the proliferation and apoptosis of glioma cells by inducing mitochondrial dysfunction.
7.Optimization of protection mechanisms for vulnerable populations in drug clinical trials: a case study of pediatric research participants
Guangxia WU ; Chuanhua DING ; Hui LI ; Hongying LI
Chinese Medical Ethics 2026;39(5):601-608
Drug clinical trials constitute a critical link in new drug development and an essential means to verify the safety and efficacy of pharmaceuticals. The protection of participants’ rights and interests and the prevention of risks directly affect the scientific ethics and social credibility of the trials. Vulnerable groups, due to restricted autonomous decision-making capacities or special social status, are more susceptible to safety risks. Children are a typical representative of vulnerable groups. Their physiological particularities, cognitive limitations, and dependence collectively epitomize the universal protection demands of vulnerable research participants. Taking children as an instance, this paper analyzes the current weak links in the protection of pediatric research participants. Integrating advanced international experience with domestic practical demands, it comprehensively identified protection risk points at every stage and constructed a multi-stakeholder collaborative mechanism for the full-process protection of pediatric research participants. This mechanism incorporated seven main entities, including drug regulatory authorities, sponsors, researchers, and ethics committees, covering the pre-trial, intra-trial, and post-trial phases to meet the requirements of full-chain and multi-dimensional protection. It provided references for the subsequent establishment of a systematic protection mechanism for vulnerable populations.
8.Analysis of potentially inappropriate medication and influencing factors among the elderly in six nursing homes in Urumqi
Qianhui LI ; Jianhua WANG ; Shangjie YANG ; Biao WU ; Lina ZHU ; Dongling PENG ; Hui GAO ; Chunlin LUO ; Zhanlei QIN ; Eli GULMIRA ; Ningning WANG ; Aierken AIZEZIJIANG ; Yubo WANG
China Pharmacy 2026;37(12):1614-1620
OBJECTIVE To investigate the prevalence and influencing factors of potentially inappropriate medication (PIM) among the elderly in nursing homes in Urumqi based on three PIM screening tools, and to compare the applicability of different tools. METHODS A cross-sectional study design was adopted. Elderly individuals from six nursing homes in Urumqi were selected as the research subjects from May 2021 to September 2023. Demographic characteristics, disease burden and medication records of the elderly were collected. PIM screening was performed using the Chinese PIM criteria (2024 edition), the American Geriatrics Society (AGS) Beers criteria (2023 edition), and the Screening Tool of Older Person’S Prescriptions(STOPP)/Screening Tool to Alert to Right Treatment(START) (2023 edition). Fleiss’s Kappa test was used to assess the consistency among the three screening tools, and multivariate Logistic regression was used to analyze the influencing factors of PIM. RESULTS The prevalence of PIM screened by the Chinese PIM criteria was 47.4% (323/682), by the AGS Beers criteria was 43.4% (296/682), and by the STOPP criteria was 50.9% (347/682). The consistency among the three screening tools was low (Fleiss’s Kappa=0.12, P <0.001). Multivariate Logistic regression analysis showed that all three screening tools indicated that polypharmacy, aspirin use and psychotropic drug use were independent risk factors for PIM among elderly in nursing houses (all OR>1, P <0.05). CONCLUSIONS The prevalence of PIM among the elderly in nursing homes in Urumqi is relatively high. Polypharmacy, aspirin use and psychotropic drug use are common independent risk factors for PIM. There are differences in screening results among the three tools with low consistency. The Chinese PIM criteria can serve as a first-line tool for PIM screening in nursing homes.
9.Detection and genetic evolution analysis of pathogens borne by Pulex irritans in selected areas of Xinjiang
Xinxin HAN ; Jing ZHAO ; Xuefeng LIU ; Yitao LI ; Tingting WU ; Junang DAI ; Mengyang YAN ; Zhihua SUN ; Hui ZHANG
Chinese Journal of Zoonoses 2025;41(8):852-858
This study identified the types and pathogen carrying status of fleas on the surface of sheep in some areas of southern Xinjiang,and analyzed the genetic evolution differences with respect to related pathogens.The aim was to provide a reference for the local prevention and control of fleas and insect borne infectious diseases.A total of 1 586 fleas were collected from agricultural and pas-toral areas of Tumushuke City and Hotan Prefecture.Flea species were identified on the basis of morphology and the Pulex irritans mi-tochondrial COII gene.Flea DNA was extracted,and PCR was conducted to amplify the Bartonella gltA gene;Arsenophonus,Ana-plasma,Ehrlichia,and Wolbachia 16S rRNA genes;RickettsiaOmpA,17kDa,16S rRNA genes,and Yersinia pestis 16S rDNA gene.The amplified products were sequenced,and the homology of the genes of the three detected pathogens(gltA gene of Bartonella,16S rRNA gene of Wolbachia,and Anaplasma phagocytophilum)with respect to known corresponding genes of the same pathogen in Gen-Bank was analyzed.Phylogenetic trees were constructed with the adjacency method in MEGA 11.0.According to morphological and mo-lecular biology identification results,all fleas collected in this study were Pulex irritans.PCR indicated that the target gene fragments had been added to the mitochondrial COII,BartonellagltA,Wolbachia,and autophagosomal 16S rRNA genes of human fleas,all of which were consistent with the expected fragment sizes.Target bands were not amplified from Ehrlichia,Arsenophonus,spotted fever group Rickettsia,and Yersinia pestis.According to homology and genetic evolution analysis of human flea mitochondrial COII and the corresponding genes of the above-described pathogens,the COX2 gene(ON455234.1)of human fleas in Tumushuke city and Iran ob-tained in this study showed the highest homology(99.84%).The COII gene(NC_063709.1)of human fleas in Hetan City and Hunan region showed the highest homology(100%).Our findings further confirmed that the flea species was Pulex irritans.The PCR amplifi-cation results indicated that the collected Pulex irritans carried multiple pathogens,among which Bartonella and Wolbachia had the highest infection rates,and the infection rate with Anaplasma phagocytophilum was relatively low.This study is the first to discover flea species on the surface of sheep in some areas of southern Xinjiang.Our findings preliminarily confirmed that Bartonella,Wolba-chia,and Anaplasma phagocytophilum are the main Pulex irritans pathogens.
10.Predictive value of cerebroplacental ratio,cerebro-uterine ratio combined with cystatin C for adverse pregnancy outcomes in preeclampsia fetuses
Huan LU ; Tian TIAN ; Xue-hui WU ; Chun-mei ZHOU ; Xin-yu WU ; Wei LI
Journal of Regional Anatomy and Operative Surgery 2025;34(9):827-831
Objective To investigate the predictive value of cerebroplacental ratio(CPR),cerebro-uterine ratio(CUR)combined with cystatin C(CysC)for adverse pregnancy outcomes in preeclampsia(PE)fetuses.Methods A retrospective analysis was conducted on the clinical data of 150 PE patients admitted to the department of obstetrics and gynecology of Nuclear Industry 416 Hospital from January 2019 to December 2024,and patients were divided into the adverse-outcome group and the favorable-outcome group according to pregnancy outcomes.The clinical data,CPR,CUR and CysC level were compared between the two groups.Multivariate Logistic regression was used to analyze the independent influencing factors of adverse pregnancy outcome in PE patients;then,receiver operating characteristic(ROC)curve analysis was performed to evaluate the predictive efficiency of each index on adverse pregnancy outcome.Results The adverse-outcome group had shorter/lower gestational age at diagnosis,estimated fetal body weight,CUR,and CPR,but higher body mass index and CysC level compared to those in the favorable-outcome group,with significant differences(P<0.05).Multivariate Logistic regression identified that the elevated CysC level,and decreased CUR and CPR were related influencing factors for adverse pregnancy outcome(P<0.05).ROC curve analysis demonstrated that CUR,CPR and CysC had strong predictive value for adverse pregnancy outcome,with the area under the curve(AUC)of 0.802(95%CI:0.729 to 0.863),0.834(95%CI:0.764 to 0.890),and 0.791(95%CI:0.717 to 0.853),respectively;the combined prediction of CUR,CPR and CysC had grater AUC of 0.909(95%CI:0.851 to 0.950)than the individual prediction of the above three indicators(P<0.05).Conclusion CUR,CPR and CysC are influencing factors of adverse pregnancy outcome in PE patients,and their combined detection demonstrates good predictive value for adverse pregnancy outcome in PE patients.

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