1.Development and validation of a risk prediction model for sleep disorders in patients with chronic heart failure
Yanmei GAN ; Gaoye LI ; Tingting LIAO ; Hua LU ; Lixia CHEN ; Qini PAN ; Yao DU
Chongqing Medicine 2025;54(3):597-605,611
Objective To analyze risk factors for sleep disorders in patients with chronic heart failure(CHF)and construct a nomogram prediction model.Methods Using simple random sampling,306 hospital-ized CHF patients meeting inclusion criteria were enrolled from four Grade A tertiary hospitals in Guangxi Zhuang Autonomous Region(two in Nanning,one each in Yulin and Guilin)between March 2023 and March 2024.LASSO regression analysis was initially employed for variable screening,followed by logistic regression to identify predictive variables for constructing the nomogram model.Model validation and performance evalua-tion were conducted using receiver operating characteristic(ROC)curves,calibration curves,and clinical decision curves,with internal validation performed through Bootstrap resampling(1 000 iterations).Results The incidence of sleep disorders among the 306 patients was 57.5%(176/306).Logistic regression analysis identified eight independent risk factors for sleep disorders in CHF patients(P<0.05):age,education level,monthly house-hold income per capita,NYHA cardiac function classification,number of comorbidities,triglyceride levels,ano-rexia,and anxiety.The model demonstrated good discrimination for the AUC of 0.91(95%CI:0.77-0.88)and calibration consistency.Conclusion The prediction model established in this study shows good predictive performance,serving as a valuable reference for healthcare providers to early identify sleep disorders and im-plement preventive care strategies in patients with CHF.
2.Attenuation of Airway Inflammation and Airway Remodeling in Ovalbumin Asthmatic Rats by Artemisinin through PI3K/Akt Signaling Pathway
Yanmei WANG ; Yanchang LIANG ; Dekun GAN ; Runyang ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(13):114-119
ObjectiveTo investigate the molecular mechanism of action of artemisinin in attenuating asthmatic airway inflammation and airway remodeling through the phosphoinositide 3-kinase(PI3K)/protein kinase B(Akt) signaling pathway. MethodFifty male SD rats were randomly divided into blank group, model group, and low-dose, medium-dose, and high-dose groups of artemisinin, with 10 rats in each group. The ovalbumin (OVA)-induced asthma model of the rats was established, and after successful modeling, the blank group and model group received tail vein injection of 1.0 mL·kg-1 normal saline, while the low-dose, medium-dose, and high-dose groups of artemisinin received tail vein injection of 12.5, 25, and 50 mg·kg-1 artemisinin daily for seven days. Airway resistance was measured by the acetylcholine chloride method. Cell number and species changes in the alveolar lavage fluid of each group were determined by flow cytometry. Morphological changes in airway endothelial tissue were determined by the hematoxylin-eosin (HE) staining method. Apoptosis was determined by CytoTox 96 method, and enzyme-linked immunosorbent assay (ELISA) method was used to determine the NOD-like receptor thermal protein domain associated protein 3 (NLRP3) inflammasome, interleukin-1β (IL-1β), and interleukin-10 (IL-10) expression. Western blot method was used to detect the (p)-PI3K/p-Akt level in the alveolar bronchial tissue of each group. ResultCompared with the blank group, the total number of cells, total number of macrophages, total number of eosinophils, total number of lymphocytes, and total number of neutrophils were significantly higher in the model group (P<0.05). HE staining showed that the airway mucosa of the rats had obvious edema, and a large number of inflammatory cells were infiltrated (P<0.05). The rate of apoptosis was significantly higher (P<0.05), and the levels of the inflammasome NLRP3, IL-1β, and IL-10 increased significantly (P<0.05). p-PI3K/p-Akt level increased significantly (P<0.05). Compared with the model group, the total number of cells, total number of macrophages, total number of eosinophils, total number of lymphocytes, and total number of neutrophils were significantly decreased after the intervention of artemisinin at low, medium, and high concentrations (P<0.05). HE staining showed that the degree of edema of the airway mucosa of the rats was reduced, and the area of the inflammatory cell infiltration was drastically reduced (P<0.05). The apoptosis rate was significantly reduced (P<0.05), and the levels of the inflammasome NLRP3, IL-1β, and IL-10 decreased significantly (P<0.05). p-PI3K/p-Akt level decreased significantly (P<0.05). ConclusionArtemisinin significantly inhibits NLRP3 inflammasome activation, reduces cellular pyroptosis and inflammatory cell expression, and attenuates airway inflammatory manifestations and airway remodeling in asthmatic rats, which may be related to the regulation of p-PI3K/p-Akt, and the results may provide laboratory insights and basis for the treatment of bronchial asthma with artemisinin.
3.Clinical application of circulating tumor cells in the diagnosis and treatment of urothelial carcinoma
Yingxin MIAO ; Wenrong JIANG ; Jiemin GAN ; Jie CHEN ; Su WANG ; Shiwen WANG ; Li DING ; Yanmei ZHANG ; Hu ZHAO
Chinese Journal of Laboratory Medicine 2020;43(9):917-922
Objective:To study the correlation between circulating tumor cells (CTC) and the degree of pathological invasion, recurrence and metastasis of urothelial carcinoma, and so to explore the clinical value of CTC detection in bladder cancer.Methods:A total of 142 patients with urothelial carcinoma in Huadong Hospital Affiliated to Fudan University were enrolled as cancer group from July 2016 to January 2018. According to the degree of tumor invasion, cancer group was divided into the non-muscle-invasive group (49 cases) and the muscle-invasive group(93 cases). In addition, 52 patients with benign urinary tract lesions admitted were selected as the benign group and 56 patients with non-urinary tract diseases and non-tumor as the control group. A total of 3.2 ml of venous anticoagulant blood from each subject was collected. CTC was enriched by negative enrichment using the magnetic beads coated with monoclonal antibody Cluster 45 of differentiation (CD45) to capture and remove white blood cells, and identified by chromosome 8 probe(CEP8) fluorescence in situ hybridization (FISH) technique. CD45-/4′,6′-diamidino-2-phenylindole+/CEP8>2(CD45-/DAPI+/CEP8>2) cells were judged as CTC. SPSS22.0 statistical software was used for statistical analysis.Results:≥2 CTCs/3.2 ml in blood was set as cutoff value. CTC positive rates in bladder cancer group, benign group and control group were 70.42%(100/142), 28.85%(15/52) and 8.93%(5/56), respectively, and there was a significant difference (χ 2=70.496, P=0.000). There was a statistically difference ( U=2 863.5, P=0.011) in the mean count of CTC(2 CTCs/3.2 ml vs 4 CTCs/3.2 ml) between the two groups. The proportion of≥5 CTCs/3.2 ml in the muscle-invasive group was 40.86% (38/93), which was significantly higher than that in the non-muscle-invasive group, 18.37% (9/49) (χ 2=7.330, P=0.007). Cystoscope follow-up of 65 patients treated with transurethral resection of the bladder tumor showed that the recurrence and metastasis rate in patients with≥5 CTCs/3.2 ml was as high as 47.62% (10/21), compared with 11.36% (5/44) of patients with<5 CTCs/3.2 ml (χ 2=10.530, P=0.001). Among 59 patients undergoing radical cystectomy, no significant difference was found in tumor diameter >3 cm, positive surgical margins and positive lymph nodes among all groups according to CTC negative or positive and CTC number ( P>0.05). But the recurrence and metastasis rate of patients with ≥5 CTCs/3.2 ml (59.10%) was significantly higher than that of patients with <5 CTCs/3.2 ml (6/30)(χ 2=8.364, P=0.004). Conclusion:The number of CTC increased with the deepening of tumor invasion; Tumor recurrence and metastasis increased significantly in the patients with ≥5/3.2 ml CTCs in blood.
4.The expression and prognostic significance of tumor suppressor gene ING1 in colorectal cancer
Weinan XUE ; Gan ZHANG ; Yanmei YANG ; Yuyan MA ; Gen SUN ; Binbin CUI
Practical Oncology Journal 2014;(5):385-390
Objective Inhibitor of growth 1 ( ING1 ) gene has been identified as a novel candidate of tumor suppressor gene .Over-expression of ING1 plays well-established roles in numerous cell processes ,inclu-ding DNA repair and cell apoptosis .Our study is to investigate the clinical significances of expression of ING 1 in colorectal cancer ( CRC) .Methods The mRNA level of ING1 in 82 matched samples comprising primary CRC and paired non-cancerous mucosa were detected and compared by quantitative RT -PCR.Then the correlations of mRNA level of ING1 with the clinicopathological characteristics and prognosis of patients with CRC were ana -lyzed.Results (1)In the same matched tissues,the expression level of ING1 was significantly higher in normal tissues than that in cancer tissues.(2)mRNA expression of ING1 was associated with certain clinical -pathologic variables such as tumor infiltrating level ,lymphatic metastasis,distant metastasis and advancing TNM stage .(3) We obtained the expression levels ratio of cancer tissue and normal tissue and found the lower ratio has a lower Disease-Free Survival(DFS)(P<0.0001).(4)ING1,as a candidate of tumor suppressor gene ,remained a sta-tistically-significant prognostic marker in the Cox regression analysis .Conclusion Down-regulation of ING1 may be correlated tightly with the occurrence and progression of sporadic colorectal cancer .Its expression level can be used to predict prognosis of CRC .
5.Pharmacokinetic Study on Ferulic Acid in Plasma of the Healthy Female Volunteers after Oral Administration of Shenghua Decoction
Yanmei WANG ; Hengjun SHI ; Xi HUANG ; Baoxiu WANG ; Hongquan GAN
Traditional Chinese Drug Research & Clinical Pharmacology 1993;0(01):-
Objective To study the pharmacokinetics of ferulic acid (FA) in plasma of the healthy female volunteers after oral administration of Shenghua decoction.Methods Using p-hydroxybenzaldehyde as the internal standard, the plasma concentration of FA was determined by RP-HPLC. Plasma samples were extracted and treated with boiling water and 3P97 programme was used to calculate the pharmacokinetic parameters. Results The main pharmacokinetic parameters of FA were as follows: T1/2?=18.72 min ,T1/2?=79.21 min,T1/2 Ka=11.19 min,AUC=18004.87 ?g?min?L-1,CL=0.17L?min-1?kg-1,Cmax=206.30 ?g?L-1, Tpeak=22.78 min.Conclusion After oral administration of Shenghua decoction, FA could be absorbed and eliminated rapidly and pharmacokinetics of FA conforms to a two-compartment open model.

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