ObjectiveThis paper aims to investigate the efficacy and related actions of Guizhi Fulingwan in intervening in the mice with colitis-associated colon cancer （CAC） based on the immunosuppressive microenvironment associated with myeloid-derived suppressor cells （MDSCs）. MethodsSixty male C57BL/6 mice were randomly assigned to a blank group， a model group， an aspirin group （0.04 g·kg^-1）， and low-， medium-， and high-dose Guizhi Fulingwan groups （4.87， 9.75， and 19.50 g·kg^-1）， with ten mice per group. The CAC mouse model was established via combined induction of azoxymethane （AOM）/dextran sulphate sodium （DSS）. Drug intervention commenced in week five， with continuous intragastric administration for nine weeks. The food intake， body weight， fecal characteristics， and haematochezia were observed and recorded， and disease activity index （DAI） scores were calculated according to scoring criteria. Hematoxylin and eosin （HE） staining was used to observe the histopathological changes in the colon tissues of the mice. Immunohistochemistry was used to determine proliferating cell nuclear antigen-67 （Ki67） expression in the colon tissues， and enzyme-linked immunosorbent assay （ELISA） was used to detect the contents of interleukin-6 （IL-6）， IL-1β， and tumor necrosis factor-α （TNF-α） in the serum of the mice. Flow cytometry was employed to determine the proportion levels of MDSCs， CD4⁺ T cells， and CD8⁺ T cells in the spleen tissues of the mice. The mRNA expressions of MDSC-associated effector molecules， including arginase 1 （Arg1） and inducible nitric oxide synthase （iNOS）， were detected by real-time quantitative polymerase chain reaction （Real-time PCR）. After that， an in vitro co-culture model of MDSCs and CD8⁺ T cells was established， and drug-containing serum of Guizhi Fulingwan was used for intervention. The Flow cytometry was employed to assess the effects of drug-containing serum of Guizhi Fulingwan with different concentrations on the levels of reactive oxygen species （ROS） and iNOS in MDSCs and the proliferation of CD8⁺ T cells. The levels of granzyme B （GZMB） and interferon-γ （IFN-γ） in cell supernatant were detected by ELISA. ResultsCompared with those in the control group， the mice in the model group exhibited significantly reduced body weight， elevated DAI scores， shortened colon length （P<0.01）， increased number of tumors and Ki67 expression （P<0.01）， and significantly elevated contents of IL-6， IL-1β， and TNF-α in the serum （P<0.01）. Significant increases in the number of MDSCs were observed in mouse spleens， alongside marked reductions in the levels of CD4⁺ T and CD8⁺ T cells （P<0.01）. Furthermore， the mRNA expressions of MDSC function-associated effector molecules Arg1 and iNOS were significantly upregulated （P<0.01）. Compared with those in the model group， the mice in the middle-dose Guizhi Fulingwan group exhibited increased body weight and significantly decreased DAI scores （P<0.05， P<0.01）. The mice in the middle- and high-dose Guizhi Fulingwan groups exhibited significantly improved colon shortening， significantly decreased number of tumors and Ki67 expression （P<0.05， P<0.01）， and significantly decreased contents of IL-6， IL-1β， and TNF-α in the serum （P<0.05， P<0.01）. Furthermore， administration of Guizhi Fulingwan markedly reduced MDSC infiltration in the spleen of the mice， with different degrees of increase in the levels of both CD4⁺ T and CD8⁺ T cells （P<0.05， P<0.01）， alongside significant decreases in the mRNA expressions of Arg1 and iNOS （P<0.05， P<0.01）. In vitro cell co-culture shows that administration of drug-containing serum of Guizhi Fulingwan significantly decreases the activity levels of ROS and iNOS in MDSCs and promotes the proliferation of CD8⁺ T cells and the secretion of GZMB and IFN-γ （P<0.05， P<0.01）. ConclusionGuizhi Fulingwan can reduce pro-inflammatory cytokine secretion and inhibit tumor proliferation in the colon tissues of CAC mice. Its potential mechanism may involve reducing MDSC infiltration， enhancing effector T cells， particularly CD8⁺ T cell response， and improving the tumor immunosuppressive microenvironment.

Objective To investigate the level and significance of serum suprabasin(SBSN)in patients with colorectal cancer(CRC).Methods A total of 200 patients with CRC in Nanjing Medical University Af-filiated Cancer Hospital from October 2023 to October 2024 were selected as the CRC group,200 patients with colorectal polyps were selected as the benign bowel disease(BCD)group,and 177 healthy people were selected as the control group.In addition,the serum SBSN levels of 84 CRC patients 7-10 d after surgery were collect-ed.The levels of SBSN in each group were compared,and the relationship between serum SBSN level and clin-icopathological characteristics of CRC patients was analyzed.Multivariate Logistic regression was used to ana-lyze the influencing factors of CRC.The receiver operating characteristic(ROC)curve was used to analyze the diagnostic efficacy of serum SBSN alone and in combination with carcinoembryonic antigen(CEA)and carbo-hydrate antigen 19-9(CA19-9)for CRC.Results The serum SBSN level in CRC group was significantly high-er than that in BCD group and control group(P＜0.001).Serum SBSN level in CRC patients was associated with TNM stage and lymph node metastasis(both P=0.001),but not with other clinicopathological features(P＞0.05).Serum SBSN,CEA,CA19-9 were independent risk factors for CRC(P＜0.001).ROC curve anal-ysis showed that the area under the curve(AUC)of SBSN alone in the diagnosis of CRC was 0.734,which was higher than that of CEA(0.611)and CA19-9(0.669)alone,and the AUC of the three combined diagno-sis of CRC was 0.816.The sensitivity and specificity were 70.0％and 81.4％,respectively.The serum SBSN level of CRC patients decreased after operation,and the difference was statistically significant compared with that before operation(P＜0.05).Conclusion SBSN is associated with the occurrence,metastasis and progno-sis of colorectal cancer,and has a certain clinical value in the diagnosis and prediction of colorectal cancer.Ser-um SBSN is a potential biomarker for the auxiliary diagnosis of colorectal cancer.

ObjectiveTo investigate the value of different noninvasive diagnostic models in the diagnosis of esophageal and gastric varices since there is a high risk of esophageal and gastric varices in patients with compensated hepatitis B cirrhosis and significant portal hypertension， and to provide a basis for the early diagnosis of esophageal and gastric varices. MethodsA total of 108 patients with significant portal hypertension due to compensated hepatitis B cirrhosis who attended Guangdong Provincial Hospital of Traditional Chinese Medicine from November 2017 to November 2023 were enrolled， and according to the presence or absence of esophageal and gastric varices under gastroscopy， they were divided into esophageal and gastric varices group （GOV group） and non-esophageal and gastric varices group （NGOV group）. Related data were collected， including age， sex， imaging findings， and laboratory markers. The chi-square test was used for comparison of categorical data between groups； the least significant difference t-test was used for comparison of normally distributed continuous data between groups， and the Mann-Whitney U test was used for comparison of non-normally distributed continuous data between groups. The receiver operating characteristic （ROC） curve was plotted to evaluate the diagnostic value of five scoring models， i.e.， fibrosis-4 （FIB-4）， LOK index， LPRI， aspartate aminotransferase-to-platelet ratio index （APRI）， and aspartate aminotransferase/alanine aminotransferase ratio （AAR）. The binary logistic regression method was used to establish a combined model， and the area under the ROC curve （AUC） was compared between the combined model and each scoring model used alone. The Delong test was used to compare the AUC value between any two noninvasive diagnostic models. ResultsThere were 55 patients in the GOV group and 53 patients in the NGOV group. Compared with the NGOV group， the GOV group had a significantly higher age （52.64±1.44 years vs 47.96±1.68 years， t=0.453， P<0.05） and significantly lower levels of alanine aminotransferase ［42.00 （24.00 — 17.00） U/L vs 82.00 （46.00 — 271.00） U/L， Z=-3.065， P<0.05］， aspartate aminotransferase ［44.00 （32.00 — 96.00） U/L vs 62.00 （42.50 — 154.50） U/L，Z=-2.351， P<0.05］， and platelet count ［100.00 （69.00 — 120.00）×10⁹/L vs 119.00 （108.50 — 140.50）×10⁹/L， Z=-3.667， P<0.05］. The ROC curve analysis showed that FIB-4， LOK index， LPRI， and AAR used alone had an accuracy of 0.667， 0.681， 0.730， and 0.639， respectively， in the diagnosis of esophageal and gastric varices （all P<0.05）， and the positive diagnostic rates of GOV were 69.97%， 65.28%， 67.33%， and 58.86%， respectively， with no significant differences in AUC values （all P>0.05）， while APRI used alone had no diagnostic value （P>0.05）. A combined model （LAF） was established based on the binary logistic regression analysis and had an AUC of 0.805 and a positive diagnostic rate of GOV of 75.80%， with a significantly higher AUC than FIB-4， LOK index， LPRI， and AAR used alone （Z=-2.773，-2.479，-2.206， and-2.672， all P<0.05）. ConclusionFIB-4， LOK index， LPRI， and AAR have a similar diagnostic value for esophageal and gastric varices in patients with compensated hepatitis B cirrhosis and significant portal hypertension， and APRI alone has no diagnostic value. The combined model LAF had the best diagnostic efficacy， which provides a certain reference for clinical promotion and application.

Objective To construct large medical model named by "Huaxi HongYi"and explore its application effectiveness in assisting medical record generation. Methods By the way of a full-chain medical large model construction paradigm of "data annotation - model training - scenario incubation", through strategies such as multimodal data fusion, domain adaptation training, and localization of hardware adaptation, "Huaxi HongYi" with 72 billion parameters was constructed. Combined with technologies such as speech recognition, knowledge graphs, and reinforcement learning, an application system for assisting in the generation of medical records was developed. Results Taking the assisted generation of discharge records as an example, in the pilot department, after using the application system, the average completion times of writing a medical records shortened (21 min vs. 5 min) with efficiency increased by 3.2 time, the accuracy rate of the model output reached 92.4%. Conclusion It is feasible for medical institutions to build independently controllable medical large models and incubate various applications based on these models, providing a reference pathway for artificial intelligence development in similar institutions.

OBJECTIVE: To assess the relationship between blood pressure reactivity index (BPRI) and in-hospital mortality risk in patients with sepsis-associated acute kidney injury (SA-AKI). METHODS: A retrospective cohort study was conducted to collect data from patients admitted to the intensive care unit (ICU) and clinically diagnosed with SA-AKI between 2008 and 2019 in the Medical Information Mart for Intensive Care-IV (MIMIC-IV) database in the United States. The collected data included demographic characteristics, comorbidities, vital signs, laboratory parameters, sequential organ failure assessment (SOFA) and simplified acute physiology scoreII(SAPSII) within 48 hours of SA-AKI diagnosis, stages of AKI, treatment regimens, mean BPRI during the first and second 24 hours (BPRI_0_24, BPRI_24_48), and outcome measures including primary outcome (in-hospital mortality) and secondary outcomes (ICU length of stay and total hospital length of stay). Variables with statistical significance in univariate analysis were included in LASSO regression analysis for variable selection, and the selected variables were subsequently incorporated into multivariate Logistic regression analysis to identify independent predictors associated with in-hospital mortality in SA-AKI patients. Restricted cubic spline (RCS) analysis was employed to examine whether there was a linear relationship between BPRI within 48 hours and in-hospital mortality in SA-AKI patients. Basic prediction models were constructed based on the independent predictors identified through multivariate Logistic regression analysis, and receiver operator characteristic curve (ROC curve) was plotted to evaluate the predictive performance of each basic prediction model before and after incorporating BPRI. RESULTS: A total of 3 517 SA-AKI patients admitted to the ICU were included, of whom 826 died during hospitalization and 2 691 survived. The BPRI values within 48 hours of SA-AKI diagnosis were significantly lower in the death group compared with the survival group [BPRI_0_24: 4.53 (1.81, 8.11) vs. 17.39 (5.16, 52.43); BPRI_24_48: 4.76 (2.42, 12.44) vs. 32.23 (8.85, 85.52), all P < 0.05]. LASSO regression analysis identified 20 variables with non-zero coefficients that were included in the multivariate Logistic regression analysis. The results showed that respiratory rate, temperature, pulse oxygen saturation (SpO₂), white blood cell count (WBC), hematocrit (HCT), activated partial thromboplastin time (APTT), lactate, oxygenation index, SOFA score, fluid balance (FB), BPRI_0_24, and BPRI_24_48 were all independent predictors for in-hospital mortality in SA-AKI patients (all P < 0.05). RCS analysis revealed that both BPRI showed "L"-shaped non-linear relationships with the risk of in-hospital mortality in SA-AKI patients. When BPRI_0_24 ≤ 14.47 or BPRI_24_48 ≤ 24.21, the risk of in-hospital mortality in SA-AKI increased as BPRI values decreased. Three basic prediction models were constructed based on the identified independent predictors: Model 1 (physiological indicator model) included respiratory rate, temperature, SpO₂, and oxygenation index; Model 2 (laboratory indicator model) included WBC, HCT, APTT, and lactate; Model 3 (scoring indicator model) included SOFA score and FB. ROC curve analysis showed that the predictive performance of the basic models ranked from high to low as follows: Model 3, Model 2, and Model 1, with area under the curve (AUC) values of 0.755, 0.661, and 0.655, respectively. The incorporation of BPRI indicators resulted in significant improvement in the discriminative ability of each model (all P < 0.05), with AUC values increasing to 0.832 for Model 3+BPRI, 0.805 for Model 2+BPRI, and 0.808 for Model 1+BPRI. CONCLUSIONS BPRI is an independent predictor factor for in-hospital mortality in SA-AKI patients. Incorporating BPRI into the prediction model for in-hospital mortality risk in SA-AKI can significantly improve its predictive capability.
Humans ; Acute Kidney Injury/mortality* ; Sepsis/complications* ; Retrospective Studies ; Hospital Mortality ; Prognosis ; Blood Pressure ; Intensive Care Units ; Male ; Female ; Length of Stay ; Middle Aged ; Aged ; Adult ; Logistic Models

Objective To explore the effect of motor imagery brain-computer interface(BCI)combined with upper limb rehabilita-tion robot on upper limb function of stroke patients.Methods From May to December,2024,45 stroke inpatients from Xuzhou Rehabilitation Hospital and Xuzhou Central Hospital were recruited and randomly divided into BCI group(n=15),robot group(n=15)and combined group(n=15).All the groups received conventional rehabilitation therapy.On this basis,the BCI group received motor imagery based BCI training,the robot group received upper extremity rehabilitation robot training,and the com-bined group received BCI combined with upper extremity rehabilitation robot training.They were assessed with Fugl-Meyer Assessment-Upper Extremities(FMA-UE),Action Research Arm Test(ARAT)and modified Barthel Index(MBI)before and four weeks after treatment,while they were measured delta-alpha ratio(DAR)using the quantitative electroencephalogram.Results The intra-group effect(F>101.870,P<0.001)and interaction effect(F>7.891,P<0.001)were significant in the scores of FMA-UE,ARAT and MBI,and DAR.Post Hoc test showed that all the indexes were better in the combined group than in BCI group and the robot group(P<0.05),and there was no significant difference in the indexes between BCI group and the robot group(P>0.05).Conclusion BCI combined with upper limb rehabilitation robot can promote the recovery of upper limb function and ac-tivities of daily living of stroke patients.

Objective To investigate the anti-inflammatory and antioxidant effects of berberine for sepsis rats based on kelch-like ECH-associated protein 1(Keap1)/nuclear factor erythroid 2-relat-ed factor 2(Nrf2)/antioxidant response element(ARE)signaling pathway.Methods Adult health-y rats were randomly divided into normal group(20 rats)and sepsis group(80 rats).The sepsis model in rats of the sepsis group was established by cecal ligation and puncture.According to differ-ent doses of berberine administered by gavage,the sepsis group was further divided into model group(0 mg/kg,without berberine administration),low-dose group(25 mg/kg),medium-dose group(50 mg/kg)and high-dose group(100 mg/kg),with 20 rats in each group.Both the model group and the normal group were given an equal volume of pure water by gavage.Ten rats were randomly selected from each group for a survival test,and they were continuously observed for 5 days to com-pare the survival rates among the groups.Lung,kidney,and liver tissues of rats in each group were collected for hematoxylin-eosin(HE)staining,enzyme-linked immunosorbent assay(ELISA),Western blot,and real-time fluorescence quantitative polymerase chain reaction(qRT-PCR)detection.The pathological tissue changes,serum inflammatory cytokine levels,serum biochemical indicator levels,and the relative expression levels of pathway-related proteins and their mRNAs in each group were observed and compared.Results The survival rates of rats in the medium-dose and high-dose groupsat various time points were all higher than those in the model group,and the differences were statistically significant(P＜0.05).Compared with the normal group,the model group showed in-creased levels of serum alanine aminotransferase(ALT),aspartate aminotransferase(AST),serum creatinine(SCr),blood urea nitrogen(BUN),interleukin-6(IL-6),interleukin-1 β(IL-β)and tumor necrosis factor-α(TNF-α).There were obvious pathological injuries in lung,liver,and kid-ney tissues.The relative expression levels of Nrf2 and heme oxygenase-1(HO-1)proteins and their mRNAs in lung tissues were decreased,while the relative expression levels of Keap1 mRNA and Keap1 protein were increased,and the differences were statistically significant(P＜0.05).Com-pared with the model group,the serum SCr and BUN levels in the medium-dose group,and the ser-um ALT,AST,SCr and BUN levels in the high-dose group were all decreased,with statistically sig-nificant differences(P＜0.05).Compared with the model group,the pathological injuries in lung,liver,and kidney tissues of rats in the low-dose,medium-dose,and high-dose groups were all alle-viated.The relative expression levels of Nrf2 mRNA and HO-1 mRNA as well as Nrf2 and HO-1 proteins in the lung tissues showed a dose-dependent increase,while the relative expression levels of Keap1 mRNA and Keap1 protein exhibited a dose-dependent decrease.The serum levels of IL-6 and TNF-α in the low-dose group,as well as the serum levels of IL-6,IL-1 β and TNF-α in the medium-dose and high-dose groups were all reduced(P＜0.05).Conclusion Berberine can alleviate the inflammatory response and activate the antioxidant response in sepsis rats by regulating the Keap1/Nrf2/ARE signaling pathway.

Objective To explore the role of ring finger protein 41(RNF41)in the initiation and progression of cholangiocarcinoma.Methods The expression levels of RNF41 mRNA and protein in tumor tissues and adjacent normal tissues from 84 CHOL patients who underwent total surgical resection at the Second Affiliated Hospital of Kunming Medical University and Kunming Ganmei Hospital between January 2010 and December 2016 were analyzed using bioinformatics,Western blot,and immunohistochemistry.The TIMER 2.0 database was used to analyze the impact of RNF41 on the prognosis and survival of CHOL patients and the relationship between RNF41 and tumor clinical characteristics.RNF41 siRNA was transfected into HCC9810,RBE,and HUCCT1 cells.CCK-8,Edu,colony formation,and Western blot assays were conducted to evaluate the changes in proliferation of cholangiocarcinoma cells between the RNF41 knockdown group and the control group.Transwell assays and detection of EMT and migration markers were performed to assess changes in the invasion ability of cholangiocarcinoma cells between the RNF41 knockdown and control groups.Western blot was used to examine the effect of RNF41 knockdown on epithelial-mesenchymal transition in cholangiocarcinoma cells.Twelve BALB/c mice were randomly divided into two groups:a control group and an RNF41 knockdown group,with six mice in each group.Tumor formation assays,Western blot assays,and immunohistochemistry staining were carried out to investigate the effect of RNF41 knockdown on tumor growth in nude mice.Results Real-time quantitative fluorescence PCR analysis revealed that the expression level of RNF41 mRNA in cholangiocarcinoma tissues was significantly higher than that in the corresponding adjacent non-tumor tissues(P<0.01),and this trend was corroborated at the protein level by immunohistochemical staining.Using the TIMER 2.0 database,we further analyzed the correlation between RNF41 expression and clinicopathological features,including histological grade,tumor stage,lymph node metastasis,and patient survival.The results indicated that elevated RNF41 expression was significantly associated with advanced histological grade and lymph node metastasis in cholangiocarcinoma(P<0.01).Survival analysis demonstrated that high RNF41 expression was closely linked to poor prognosis in patients with cholangiocarcinoma(CHOL).Functional assays,including CCK-8,EdU incorporation,and colony formation,showed that RNF41 knockdown significantly inhibited the proliferation of cholangiocarcinoma cells compared with the control group.Western blot analysis revealed that,following RNF41 silencing,the expression of the epithelial-mesenchymal transition(EMT)marker E-cadherin was markedly upregulated,whereas the levels of mesenchymal markers N-cadherin and MMP9 were significantly reduced(P<0.05).These findings were consistent with the results obtained from in vitro experiments(P<0.01).Moreover,in vivo studies showed that RNF41 knockdown suppressed subcutaneous tumor formation in nude mice(P<0.05).Conclusion RNF41 plays a critical role in promoting the occurrence and progression of cholangiocarcinoma and is closely associated with adverse clinicopathological features and poor prognosis in patients.The knockdown of RNF41 effectively suppresses the proliferation,invasion,epithelial-mesenchymal transition(EMT),and tumorigenicity of cholangiocarcinoma cells.

Objective To explore the effect of motor imagery brain-computer interface(BCI)combined with upper limb rehabilita-tion robot on upper limb function of stroke patients.Methods From May to December,2024,45 stroke inpatients from Xuzhou Rehabilitation Hospital and Xuzhou Central Hospital were recruited and randomly divided into BCI group(n=15),robot group(n=15)and combined group(n=15).All the groups received conventional rehabilitation therapy.On this basis,the BCI group received motor imagery based BCI training,the robot group received upper extremity rehabilitation robot training,and the com-bined group received BCI combined with upper extremity rehabilitation robot training.They were assessed with Fugl-Meyer Assessment-Upper Extremities(FMA-UE),Action Research Arm Test(ARAT)and modified Barthel Index(MBI)before and four weeks after treatment,while they were measured delta-alpha ratio(DAR)using the quantitative electroencephalogram.Results The intra-group effect(F>101.870,P<0.001)and interaction effect(F>7.891,P<0.001)were significant in the scores of FMA-UE,ARAT and MBI,and DAR.Post Hoc test showed that all the indexes were better in the combined group than in BCI group and the robot group(P<0.05),and there was no significant difference in the indexes between BCI group and the robot group(P>0.05).Conclusion BCI combined with upper limb rehabilitation robot can promote the recovery of upper limb function and ac-tivities of daily living of stroke patients.

Objective:To explore the mediating effect of professional self-efficacy between professional values and willingness to work on gerontological care of nursing students in higher vocational colleges.Methods:A total of 391 nursing students from Chengdu area full-time university were investigated by general information questionnaire, gerontological nursing career motivation questionnaire, professional values scale, and professional self-efficacy scale. Pearson correlation analysis and descriptive statistical analysis were performed by SPSS 21.0. Amos 26.0 was used to establish mediating effect model and verify the mediating effect.Results:The total score of 391 nursing students' willingness to work on gerontological care was (47.05±6.93), the willingness to work on gerontological care was positively correlated with professional self-efficacy and professional values ( r = 0.826, 0.775, respectively, all P<0.01), and professional self-efficacy played a partial mediating role between professional values and willingness to work on gerontological care, accounting for 64.82% of the total effect. Conclusions:The willingness to work on gerontological care of nursing students in higher vocational colleges is at a middle level. Professional values not only directly affect the willingness to work on gerontological care, but also indirectly take function through the professional self-efficacy. Professional self-efficacy plays a mediating role in professional values and willingness to work on gerontological care of nursing students in higher vocational colleges.