1.Predictive Factors Associated With Dysphagia in Patients With Traumatic Brain Injury
Shu-Mei YANG ; Ting-Ju LAI ; Ya-Chu HSU ; Yu-Lin LU ; Hsing-Yu CHEN ; Hsiao-Ting TSAI ; Sheng-Hao CHENG ; Ming-Yen HSIAO ; Meng-Ting LIN
Annals of Rehabilitation Medicine 2026;50(2):117-128
Objective:
To identify early clinical predictors associated with dysphagia and delayed swallowing recovery in patients with traumatic brain injury (TBI).
Methods:
In this retrospective study, we enrolled adult TBI patients admitted to the rehabilitation unit of a tertiary medical center between June 2019 and June 2023. Data on baseline characteristics, neurological status, imaging findings, and rehabilitation-related variables were collected. Swallowing function was assessed using two indicators: (1) nasogastric (NG) tube retention and (2) the Functional Oral Intake Scale (FOIS) scores at 1, 4, and 12 weeks post-injury. Regression analyses were conducted to identify predictors associated with dysphagia and swallowing recovery.
Results:
A total of 160 patients were included. At 1 week post-injury, longer intensive care unit (ICU) stay, poor initial sitting balance and use of sedative medication in ICU were associated with NG tube retention. At 4 weeks, lower initial Rancho Los Amigos Scale (RLAS) scores, immobility-related complications, longer hospitalization, and temporal lobe hematomas were associated with persistent NG tube dependence. By 12 weeks, older age, delayed ability to follow commands, and poor initial sitting balance remained associated with NG tube retention. FOIS outcomes were also associated with older age, delayed time to follow commands, impaired initial sitting balance, prolonged ICU stay, temporal lobe hematomas, lower initial RLAS scores, immobility-related complications, prolonged endotracheal tube placement and extended hospital stays.
Conclusion
Impaired cognitive status, poor physical function, immobility-related complications, and temporal lobe hematomas were key factors associated with dysphagia and delayed oral intake in individuals with TBI.
2.Differences in deltamethrin resistance and kdr gene mutation in Culex tritaeniorhynchus population in and outside the Yellow Sea wetland
Xiao-er ZHANG ; Zhi-ming WU ; Ye TIAN ; Qian CUI ; Yu-qian JI ; Huan WANG ; Shu-juan YANG ; Yi-chao ZHAO ; Yu WANG ; Hua-yu YIN ; Yu DING ; Guo-jin YAN ; Min-sen ZHAO ; Shou-gang ZHANG ; Bing-dong SONG ; Hong-na CHEN ; Jian GAO ; Wei-fang YANG ; Yu-fu ZHANG ; Hui LIU ; Hong-liang CHU
Acta Parasitologica et Medica Entomologica Sinica 2026;33(2):101-107
Objective To gain insights into the biological characteristics of different populations of Culex tritaeniorhynchus within and around the Yellow Sea wetland from the perspective of the occurrence of resistance, we investigated the levels of resistance to deltamethrin and kdr gene mutation in the wetland and its peripheral areas. Methods Specimens were collected from Cx. tritaeniorhynchus populations at two monitoring sites in the Rare Bird National Nature Reserve and Tiaozi Ni Wetland Scenic Area, and also from two populations in Yancheng City and the Liuhe District of Nanjing, and the resistance of these mosquitoes to deltamethrin was determined using the CDC biotest bottle method. For each concentration of deltamethrin assessed, a random subset of exposed specimens was selected for amplification of the kdr gene fragment, followed by Sanger sequencing to identify and analyze resistance-associated mutations. Results The LC50 levels of deltamethrin among mosquitoes from the four populations in Luhe, Yancheng, the Rare Bird National Nature Reserve and the Tiaozi Ni Wetland Scenic Area were 2.048 5, 7.798 2, 3.473 3, and 17.695 5 mg/mL, respectively, with corresponding concentrations of deltamethrin ranging from 0.005 to 5.000,0.050 to 50.000,0.050 to 25.000 and 0.050 to 50.000 mg/mL, respectively. Furthermore, the ranges of the KT50 values were 11.76-107.43, 67.05-216.30,29.77-107.43 and 28.40-329.51 min; the 1-h knockdown rates were 34.58%-99.15%, 9.52%-43.80%, 55.09%-73.01%, and 10.09%-68.07%; and the 24-h mortality rates were 12.15%-67.52%,9.52%-79.56%,13.17%-82.21%, and 11.01%-78.99%, respectively. With respect to kdr gene mutation, we assayed a total of 63,70,59, and 57 mosquitoes for the four populations, for which we detected L1014F mutation frequencies of 14.29%, 35.00%, 20.34%, and 31.58%, respectively, with a majority of these mutations being heterozygous for resistance. In addition, five adult mosquitoes were identified has having synonymous mutations at site 1011[i. e. , AAT(asparagine)mutation to AAC(asparagine)]. Conclusions Our findings revealed the clear resistance of Cx. tritaeniorhynchus to deltamethrin in the Yancheng region of the Yellow Sea wetland, and the resistance phenotype and kdr frequency of Cx. tritaeniorhynchus in the wetland environment were comparable to those of Cx. tritaeniorhynchus in the wetland environment, thereby indicating that the resistance of different populations of Cx. tritaeniorhynchus was homogeneous under the pressure of different insecticide selection within and around the wetland. However, the underlying mechanisms need to be further studied.
3.Study on accumulation of polysaccharide and steroid components in Polyporus umbellatus infected by Armillaria spp.
Ming-shu YANG ; Yi-fei YIN ; Juan CHEN ; Bing LI ; Meng-yan HOU ; Chun-yan LENG ; Yong-mei XING ; Shun-xing GUO
Acta Pharmaceutica Sinica 2025;60(1):232-238
In view of the few studies on the influence of
4.Three-dimensional kinematic analysis can improve the efficacy of acupoint selection for post-stroke patients with upper limb spastic paresis: A randomized controlled trial.
Xin-Yun HUANG ; Ou-Ping LIAO ; Shu-Yun JIANG ; Ji-Ming TAO ; Yang LI ; Xiao-Ying LU ; Yi-Ying LI ; Ci WANG ; Jing LI ; Xiao-Peng MA
Journal of Integrative Medicine 2025;23(1):15-24
BACKGROUND:
China is seeing a growing demand for rehabilitation treatments for post-stroke upper limb spastic paresis (PSSP-UL). Although acupuncture is known to be effective for PSSP-UL, there is room to enhance its efficacy.
OBJECTIVE:
This study explored a semi-personalized acupuncture approach for PSSP-UL that used three-dimensional kinematic analysis (3DKA) results to select additional acupoints, and investigated the feasibility, efficacy and safety of this approach.
DESIGN, SETTING, PARTICIPANTS AND INTERVENTIONS:
This single-blind, single-center, randomized, controlled trial involved 74 participants who experienced a first-ever ischemic or hemorrhagic stroke with spastic upper limb paresis. The participants were then randomly assigned to the intervention group or the control group in a 1:1 ratio. Both groups received conventional treatments and acupuncture treatment 5 days a week for 4 weeks. The main acupoints in both groups were the same, while participants in the intervention group received additional acupoints selected on the basis of 3DKA results. Follow-up assessments were conducted for 8 weeks after the treatment.
MAIN OUTCOME MEASURES:
The primary outcome was the Fugl-Meyer Assessment for Upper Extremity (FMA-UE) response rate (≥ 6-point change) at week 4. Secondary outcomes included changes in motor function (FMA-UE), Brunnstrom recovery stage (BRS), manual muscle test (MMT), spasticity (Modified Ashworth Scale, MAS), and activities of daily life (Modified Barthel Index, MBI) at week 4 and week 12.
RESULTS:
Sixty-four participants completed the trial and underwent analyses. Compared with control group, the intervention group exhibited a significantly higher FMA-UE response rate at week 4 (χ2 = 5.479, P = 0.019) and greater improvements in FMA-UE at both week 4 and week 12 (both P < 0.001). The intervention group also showed bigger improvements from baseline in the MMT grades for shoulder adduction and elbow flexion at weeks 4 and 12 as well as thumb adduction at week 4 (P = 0.007, P = 0.049, P = 0.019, P = 0.008, P = 0.029, respectively). The intervention group showed a better change in the MBI at both week 4 and week 12 (P = 0.004 and P = 0.010, respectively). Although the intervention group had a higher BRS for the hand at week 12 (P = 0.041), no intergroup differences were observed at week 4 (all P > 0.05). The two groups showed no differences in MAS grades as well as in BRS for the arm at weeks 4 and 12 (all P > 0.05).
CONCLUSION:
Semi-personalized acupuncture prescription based on 3DKA results significantly improved motor function, muscle strength, and activities of daily living in patients with PSSP-UL.
TRIAL REGISTRATION
Chinese Clinical Trial Registry ChiCTR2200056216. Please cite this article as: Huang XY, Liao OP, Jiang SY, Tao JM, Li Y, Lu XY, Li YY, Wang C, Li J, Ma XP. Three-dimensional kinematic analysis can improve the efficacy of acupoint selection for post-stroke patients with upper limb spastic paresis: A randomized controlled trial. J Integr Med. 2025; 23(1): 15-24.
Humans
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Male
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Female
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Middle Aged
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Acupuncture Points
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Upper Extremity/physiopathology*
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Biomechanical Phenomena
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Single-Blind Method
;
Aged
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Stroke/therapy*
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Acupuncture Therapy/methods*
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Stroke Rehabilitation/methods*
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Adult
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Muscle Spasticity/therapy*
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Paresis/physiopathology*
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Treatment Outcome
5.Forty years of construction and innovative development of scientific regulation system of traditional Chinese medicine in China.
Jun-Ning ZHAO ; Zhi-Shu TANG ; Hua HUA ; Rong SHAO ; Jiang-Yong YU ; Chang-Ming YANG ; Shuang-Fei CAI ; Quan-Mei SUN ; Dong-Ying LI
China Journal of Chinese Materia Medica 2025;50(13):3489-3505
Since the promulgation of the first Drug Administration Law of the People's Republic of China 40 years ago in 1984, China has undergone four main stages in the traditional Chinese medicine(TCM) regulation: the initial establishment of TCM regulation rules(1984-1997), the formation of a modern TCM regulatory system(1998-2014), the reform of the review and approval system for new TCM drugs(2015-2018), and the construction of a scientific regulation system for TCM(2019-2024). Over the past five years, a series of milestone achievements of TCM regulation in China have been achieved in the six aspects, including its strategic objectives and the establishment of a science-based regulatory system, the reform of the review and approval system for new TCM drugs, the optimization and improvement of the TCM standard system and its formation mechanism, comprehensive enhancement of regulatory capabilities for TCM safety, international harmonization of TCM regulation and its role in promoting innovation. Looking ahead, centered on advancing TCMRS to establish a sound regulatory framework tailored to the unique characteristics of TCM, TCM regulation will evolve into new reform patterns, advancing and extending across eight critical fronts, including the legal framework and policy architecture, the review and approval system for new TCM drugs, the quality standard and management system of TCM, the comprehensive quality & safety regulation and traceability system, the research and transformation system for TCMRS, AI-driven innovations in TCM regulation, the coordination between high-quality industrial development and high-level regulation, and the leadership in international cooperation and regulatory harmonization. In this way, a unique path for the development of modern TCM regulation with Chinese characteristics will be pioneered.
Humans
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China
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Drugs, Chinese Herbal/standards*
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History, 20th Century
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History, 21st Century
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Medicine, Chinese Traditional/trends*
6.Research progress on molecular mechanisms of ginsenosides in alleviating acute lung injury.
Han-Yang ZHAO ; Xun-Jiang WANG ; Qiong-Wen XUE ; Bao-Lian XU ; Xu WANG ; Shu-Sheng LAI ; Ming CHEN ; Li YANG ; Zheng-Tao WANG ; Li-Li DING
China Journal of Chinese Materia Medica 2025;50(16):4451-4470
Acute lung injury(ALI) is a critical clinical condition primarily characterized by refractory hypoxemia and infiltration of inflammatory cells in lung tissue, which can progress into a more severe form known as acute respiratory distress syndrome(ARDS). Immune cells and inflammatory cytokines play important roles in the progression of the disease. Due to its unclear pathogenesis and the lack of effective clinical treatments, ALI is associated with a high mortality rate and severely affects patients' quality of life, making the search for effective therapeutic agents particularly urgent. Ginseng Radix et Rhizoma, the dried root of the perennial herb Panax ginseng from the Araliaceae family, contains active ingredients such as saponins and polysaccharides, which possess various pharmacological effects including anti-tumor activity, immune regulation, and metabolic modulation. In recent years, studies have shown that ginsenosides exhibit notable effects in reducing inflammation, ameliorating epithelial and endothelial cell injury, and providing anticoagulant action, indicating their comprehensive role in alleviating lung injury. This review summarizes the pathogenesis of ALI and the molecular mechanisms through which ginsenosides act at different stages of ALI development. The aim is to provide a scientific reference for the development of ginsenoside-based drugs targeting ALI, as well as a theoretical basis for the clinical application of Ginseng Radix et Rhizoma in the treatment of ALI.
Ginsenosides/pharmacology*
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Humans
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Acute Lung Injury/immunology*
;
Animals
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Panax/chemistry*
;
Drugs, Chinese Herbal
7.Serum Lipidomics Profiling to Identify Potential Biomarkers of Ischemic Stroke: A Pilot Study in Chinese Adults.
Ji Jun SHI ; Zu Jiao NIE ; Shu Yao WANG ; Hao ZHANG ; Xin Wei LI ; Jia Ling YAO ; Yi Bing JIN ; Xiang Dong YANG ; Xue Yang ZHANG ; Ming Zhi ZHANG ; Hao PENG
Biomedical and Environmental Sciences 2025;38(8):918-925
OBJECTIVE:
Lipid oxidation is involved in the pathogenesis of atherosclerosis and may be contribute to the development of Ischemic stroke (IS). However, the lipid profiles associated with IS have been poorly studied. We conducted a pilot study to identify potential IS-related lipid molecules and pathways using lipidomic profiling.
METHODS:
Serum lipidomic profiling was performed using LC-MS in 20 patients with IS and 20 age- and sex-matched healthy controls. Univariate and multivariate analyses were simultaneously performed to identify the differential lipids. Multiple testing was controlled for using a false discovery rate (FDR) approach. Enrichment analysis was performed using MetaboAnalyst software.
RESULTS:
Based on the 294 lipids assayed, principal component analysis (PCA) and orthogonal partial least squares discriminant analysis (OPLS-DA) models were used to distinguish patients with IS from healthy controls. Fifty-six differential lipids were identified with an FDR-adjusted P less than 0.05 and variable influences in projection (VIP) greater than 1.0. These lipids were significantly enriched in glycerophospholipid metabolism (FDR-adjusted P = 0.009, impact score = 0.216).
CONCLUSIONS
Serum lipid profiles differed significantly between patients with IS and healthy controls. Thus, glycerophospholipid metabolism may be involved in the development of IS. These results provide initial evidence that lipid molecules and their related metabolites may serve as new biomarkers and potential therapeutic targets for IS.
Humans
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Pilot Projects
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Lipidomics
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Male
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Female
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Biomarkers/blood*
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Middle Aged
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Ischemic Stroke/blood*
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Aged
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China
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Lipids/blood*
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Adult
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Case-Control Studies
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East Asian People
8.Association between the non-treatment threshold or upper limit of normal of alanine aminotransferase and liver pathological injury in patients with chronic hepatitis B virus infection and a persistently low level of alanine aminotransferase
Ming SHU ; Suwen JIANG ; Airong HU ; Qin CHEN ; Jialan WANG ; Menghan JIN ; Haojin ZHANG ; Shiqi YANG ; Shiyang FAN
Journal of Clinical Hepatology 2025;41(10):2044-2053
ObjectiveTo investigate the significance of different non-treatment thresholds or upper limits of normal (ULN) of alanine aminotransferase (ALT) in evaluating significant liver pathological injury in patients with chronic hepatitis B virus (HBV) infection, and to provide guidance for clinical diagnosis and treatment. MethodsThis study was conducted among 733 patients with chronic HBV infection who were hospitalized in Ningbo No. 2 Hospital from January 2015 to December 2023 and underwent liver biopsy and histopathological examination, and all patients had a persistent ALT level of ≤40 U/L and positive HBV DNA (>30 IU/mL). According to the treatment threshold or ULN of ALT, the patients were divided into group 1 with 575 patients (≤35 U/L for male patients, ≤25 U/L for female patients), group 2 with 430 patients (≤30 U/L for male patients, ≤19 U/L for female patients), group 3 with 443 patients (≤27 U/L for male patients, ≤24 U/L for female patients), group 4 with 446 patients (≤25 U/L), group 5 with 158 patients (>35 U/L for male patients, >25 U/L for female patients), and group 6 with 145 patients (>30 — ≤35 U/L for male patients, >19 — ≤25 U/L for female patients). Groups 2, 5, and 6 were compared to analyze the severity of liver pathological injury in patients with different ALT levels and the constituent ratio of patients with significant liver pathological injury, and groups 1, 2, 3, and 4 were compared to investigate the value of different ULN or non-treatment thresholds of ALT in determining liver inflammation grade (G), liver fibrosis stage (S), and the treatment indication based on liver pathology. The independent-samples t test was used for comparison of normally distributed continuous data between two groups; a one-way analysis of variance was used for comparison between multiple groups, and the least significant difference t-test or the Tambane’s test was used for further comparison between two groups; the Mann-Whitney U test was used for comparison of non-normally distributed continuous data between two groups, and the Kruskal-Wallis H test was used for comparison between multiple groups and further comparison between two groups; the chi-square test or the Fisher’s exact test was used for comparison of categorical data between groups; a Ridit analysis was used for comparison of ranked data. A multivariate Logistic regression analysis (forward stepwise) was performed with whether liver pathology met the treatment indication (≥G2 and/or ≥S2) as the dependent variable and related factors with a significant impact on the dependent variable (P <0.05) as the independent variable. The receiver operating characteristic (ROC) curve was plotted, and the area under the ROC curve (AUC), as well as sensitivity, specificity, positive predictive value, negative predictive value, positive likelihood ratio, and negative likelihood ratio, was used to assess the diagnostic value of different non-treatment thresholds of ALT. ResultsAmong the 733 patients, 259 (35.33%) had ≥G2 liver inflammation, 211 (28.79%) had ≥S2 liver fibrosis, and 306 (41.75%) had treatment indication (≥G2 and/or ≥S2). There was a significant difference in liver inflammation grade (G0 — G4) between groups 2, 5, and 6 (χ2=22.869, P <0.001), and there were also significant differences in the constituent ratios of patients with ≥G2 or ≥G3 liver inflammation between the three groups (χ2=21.742 and 14.921, P<0.001 and P=0.001). There was a significant difference in liver fibrosis stage (S0 — S4) between groups 2, 5, and 6 (χ2=16.565, P<0.001), and there were also significant differences in the constituent ratios of patients with ≥S2, ≥S3 or S4 liver fibrosis between the three groups (χ2=13.264, 13.050, and 6.260, P=0.001, 0.001, and 0.044). There were significant differences between groups 2, 5, and 6 in the constituent ratios of patients with or without treatment indication based on liver pathology (χ2=20.728, P<0.001). There were significant differences between groups 2, 5, and 6 in the constituent ratio of male patients (χ2=24.836, P<0.05), age (F=5.710, P<0.05), ALT (F=473.193, P<0.05), aspartate aminotransferase (AST) (F=107.774, P<0.05), ALT/AST ratio (F=40.167, P<0.05), γ-glutamyl transpeptidase (GGT) (H=15.463, P<0.05), aspartate aminotransferase-to-platelet ratio index (APRI) (H=63.024, P<0.05), and LIF-5 (5 indicators for liver inflammation and fibrosis) (H=46.397, P<0.05). In groups 1 — 4, compared with the patients without treatment indication, the patients with treatment indication had a significantly lower constituent ratio of patients with positive HBeAg, significantly lower levels of platelet count (PLT) and HBV DNA, and significantly higher age, ALT, AST, GGT, APRI, FIB-4, and LIF-5 (all P<0.05). The Logistic regression analysis showed that age (odds ratio [OR]=1.044, 95% confidence interval [CI]: 1.025 — 1.063, P<0.001), GGT (OR=1.022, 95%CI: 1.007 — 1.038, P=0.003), and HBV DNA (OR=0.839, 95%CI: 0.765 — 0.919, P<0.001) were influencing factors for treatment indication based on liver pathology in group 1; HBeAg (OR=1.978, 95%CI: 1.269 — 3.082, P=0.003), age (OR=1.048, 95%CI: 1.025 — 1.071, P<0.001), GGT (OR=1.016, 95%CI: 1.001 — 1.031, P=0.041), and PLT (OR=0.995, 95%CI: 0.991 — 1.000, P=0.049) were influencing factors in group 2; age (OR=1.040, 95%CI: 1.014 — 1.066, P=0.002), ALT (OR=1.047, 95%CI: 1.005 — 1.092, P=0.029), HBV DNA (OR=0.817, 95%CI: 0.736 — 0.907, P<0.001), and LIF-5 (OR=7.382, 95%CI: 1.151 — 47.330, P=0.035) were influencing factors in group 3; age (OR=1.054, 95%CI: 1.031 — 1.077, P<0.001), ALT (OR=1.061, 95%CI: 1.016 — 1.107, P=0.008), and HBV DNA (OR=0.825, 95%CI: 0.743 — 0.917, P<0.001) were influencing factors in group 4. The diagnostic performance for identifying ≥G2 liver inflammation, ≥S2 liver fibrosis, and treatment indication in groups 1 — 4 had an AUC of >0.7; group 1 showed the lowest sensitivity (28.76%) and the highest specificity, positive predictive value, positive likelihood ratio, and negative likelihood ratio in judging treatment indication; group 2 had the highest sensitivity and negative predictive value and the lowest negative likelihood ratio; groups 3 and 4 had similar diagnostic indicators. ConclusionIn patients with chronic HBV infection and a persistently low ALT level, the severity of liver histopathological injury and the constituent ratio of significant liver histopathological injury decrease with the reduction in ALT level. A higher non-treatment threshold or ULN of ALT can help to identify the patients requiring treatment (with a higher specificity), while a lower non-treatment threshold or ULN of ALT can help to identify the patients who do not require treatment (with a higher sensitivity).
9.Effectiveness of Acupuncture in Improving Quality of Life for Patients with Advanced Cancer: A Systematic Review and Meta-Analysis.
Xin YU ; Si-Yao GONG ; Qin LUO ; Gui-Xing XU ; Hao TIAN ; Qian LI ; Ming CHEN ; Sha YANG ; Shu-Guang YU
Chinese journal of integrative medicine 2025;31(4):360-371
OBJECTIVE:
To investigate the effect of acupuncture on advanced cancer patients by meta-analysis.
METHODS:
Nine databases (the Cochrane Central Register of Controlled Trials, MEDLINE, Web of Science, Embase, China National Knowledge Infrastructure, the Cumulative Index to Nursing and Allied Health Literature, Chinese Biomedical Literature Database, China Science and Technology Journal Database, and WanFang Data) were searched for randomized controlled trials (RCTs) on acupuncture in advanced cancer patients published from inception to February 13, 2023 and updated to June 1, 2023. Primary outcomes were quality of life (QOL), while secondary outcomes were pain, fatigue, and adverse events (side effects). Data synthesis was performed using RevMan V.5.3 to calculate pooled effect sizes. RoB-2 was used for the risk of bias, and the quality of evidence was assessed using the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) tool.
RESULTS:
Totally 17 RCTs involving 1,178 participants were included, 15 of which were pooled for meta-analysis. Most studies demonstrated some concern for the overall risk of bias. The pooled data indicated that acupuncture was associated with improved QOL [mean difference (MD)=6.67, 95% confidence interval (CI): 5.09 to 8.26], pain (MD=-1.18, 95% CI -2.28 to -0.08), and adverse events (risk ratio=0.30, 95% CI: 0.26 to 0.57) compared with control groups. Fatigue outcome was not included. Heterogeneity was substantial, and GRADE evidence was very low for both QOL and pain.
CONCLUSIONS
Acupuncture could benefit patients with advanced cancer and is considered safe compared with usual care. However, the evidence regarding QOL and pain outcomes requires further validation. It is crucial to encourage the development of high-quality studies to strengthen this evidence. (Registry No. CRD42023423539).
Humans
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Acupuncture Therapy
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Neoplasms/therapy*
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Quality of Life
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Randomized Controlled Trials as Topic
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Treatment Outcome
10.A Multifunctional Electrochemiluminescence Sensor Based on Spatially Resolved Strategy for Synchronously Monitoring Cholesterol and CD44 on Cell Membrane
Shu-Ting FAN ; Ming-Xing XIAO ; Pei-Hui YANG
Chinese Journal of Analytical Chemistry 2025;53(11):1898-1907,中插44-中插48
Cholesterol on the cell membrane plays a crucial role in regulating membrane proteins,influencing cell functions,and the occurrence and development of tumors.The CD44 receptor protein is closely associated with tumor invasion and metastasis.Therefore,developing biosensors capable of in-situ simultaneous monitoring of cholesterol and CD44 receptor protein on the cell membrane is of great significance for disease diagnosis.In this study,a spatially resolved strategy dual-signal multifunctional electrochemiluminescence(ECL)sensor was designed.The positive potential luminescent probe(ALC)was prepared by combining gold nanostars with luminol and cholesterol oxidase(ChOx),and the negative potential luminescent probe(CZA)was prepared by combining carbon quantum dots(CQD)with ZIF-8 and gold nanoparticles(AuNPs).The dual probes were fixed on dual working electrodes respectively to construct a spatial resolution dual signal sensor,and the signals were independently output with K2S2O8 as co-reactant.When the measurement signal of ALC probe was enhanced due to enzymatic catalysis of cholesterol,CZA synchronously output the internal reference signal,realizing ratio ECL detection of cholesterol,with a linear range of 50 nmol/L-1600 μmol/L and a detection limit of 20 nmol/L.Furthermore,after the double probes were respectively modified with folic acid(FA)and hyaluronic acid(HA),a spatially resolved dual-functional cell sensor was constructed by capturing human hepatoma cells HepG2 through ligand-receptor specific recognition.This sensor enabled the simultaneous monitoring of cholesterol-ChOx catalytic reaction and CD44-HA recognition on the cell membrane,as well as the quantitative detection of cancer cells and cholesterol on the cell membrane.The results showed that the linear detection range for HepG2 cell was 100-10000 cell/mL.By reducing cholesterol on the cell membrane using methyl-β-cyclodextrin(MβCD)downregulated CD44 expression,it was found that the cholesterol content was positively correlated with CD44 expression on the cell membrane.The control experiments showed that the analysis method was feasible.The designed ECL sensor could be used to detect cholesterol ratiometrically and provided a new method for the simultaneous analysis of multiple functional molecules in cells.


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