Objective To investigate the relationship between serum sorting protein(Sortilin),trimethyl-amine oxide(TMAO)and inflammatory factors and abdominal aortic calcification(AAC)in maintenance he-modialysis(MHD)patients.Methods A total of 197 MHD patients(MHD group)admitted to Department of Nephrology in the hospital from January 2021 to May 2023 and 150 physically examined healthy individuals(control group)during the same period were prospectively selected,and the MHD patients were classified into the moderate and severe AAC group(82 patients)and no or mild AAC group(115 patients)according to the AAC score.The serum of serum Sortilin,TMAO and inflammatory factors[interleukin(IL)-1β,IL-6,tumor necrosis factor-α(TNF-α)]were measured using enzyme-linked immunosorbent assay.The correlation be-tween serum Sortilin,TMAO,and inflammatory factors in MHD patients was assessed using Spearman corre-lation analysis,and influencing factors associated with moderate and severe AAC in MHD patients were ex-plored using multivariate Logistic regression analysis.The predictive value of serum Sortilin and TMAO levels for moderate and severe AAC in MHD patients was analyzed using receiver operating characteristic curve.Re-sults The levels of serum Sortilin,TMAO,IL-1β,IL-6 and TNF-α in moderate and severe AAC group were higher than those in no or mild AAC group and control group(all P＜0.05).Serum Sortilin and TMAO were positively correlated with IL-1β,IL-6 and TNF-α levels in MHD patients(all P＜0.05).Prolonged dialysis age(OR=1.034,95％CI:1.010-1.060),increased levels of IL-6(OR=1.092,95％CI:1.034-1.152),Sortilin(OR=1.076,95％CI:1.043-1.110)and TMAO(OR=1.384,95％CI:1.150-1.664)were independent risk factors for moderate and severe AAC in MHD patients(P＜0.05).The area under the curve of serum Sortilin combined with TMAO levels in predicting moderate and severe AAC in MHD patients was 0.885(95％CI:0.831-0.926),which was greater than 0.785(95％CI:0.721-0.841)and 0.797(95％CI:0.734-0.850)predicted by serum Sortilin and TMAO levels alone(P＜0.05).Conclusion The levels of se-rum Sortilin and TMAO in MHD patients are increased,and are closely related to the elevation of inflammato-ry factors and AAC.Furthermore,the combination of serum Sortilin and TMAO levels shows certain predic-tive value for moderate and severe AAC in MHD patients.

Objective:To investigate the efficacy and safety of nano-particle albumin bound paclitaxel in the treatment of patients with advanced and relapsed cervical cancer.Methods:A retrospective cohort study was conducted. Among the cervical cancer patients who were diagnosed and treated in Affiliated Hospital of Yan'an University from January 2013 to January 2018, 52 advanced and relapsed cases were selected as the research objects. The chemotherapy protocol of nano-particle albumin bound paclitaxel and cisplatin was used, and the efficacy and toxicity of chemotherapy were analyzed.Results:The total objective remission rate of 52 patients with advanced or relapsed cervical cancer was 67.3% (35/52), the disease control rate was 88.5% (46/52), and the progression-free survival time was (11.7±3.6) months. The objective remission rate in patients who had received radiotherapy and with a time interval of > 12 months since their last chemotherapy was higher than that in patients who had not received radiotherapy and with a time interval of ≤ 12 months since their last chemotherapy [76.9% (30/39) vs. 46.2% (6/13), χ2 = 4.333, P = 0.037; 78.9% (15/19) vs. 43.8% (7/16), χ2 = 4.609, P = 0.032]. Late stage, relapse, whether received radiotherapy, whether received chemotherapy and the time from the previous chemotherapy had no effect on the disease control rate (all P > 0.05). The progression-free survival time in patients who underwent radiotherapy and with a time interval of > 12 months since their last chemotherapy was longer than that in patients who had not received radiotherapy and with a time interval of ≤12 months since their last chemotherapy [(13.0±4.4) months vs.(8.7±2.9) months, t = 3.029, P = 0.004; (12.8±3.1) months vs. (9.6±4.0) months, t = 2.665, P = 0.012]. The highest incidence rates of adverse reactions were myelosuppression (82.7%, 43/52) and gastrointestinal reaction (65.4%, 34/52), and the most common grade Ⅲ-Ⅳ adverse reaction was myelosuppression (20 cases). Conclusion:The efficacy and safety of nano-particle albumin bound paclitaxel combined with cisplatin in the treatment of advanced and relapsed cervical cancer are reliable.

Objective To study the technological parameters of the purification process for active cons-tituents from Saussurea involucrata.Methods Using absorption and desorption rates of syringin,chologenic acid,and rutin as the primary screening indexes,four resins were selected,and the conditions of absorption and desorption were optimized for active constituents.Results Resin HPD400 gave good separation performance and was selected to purify the active constituents in S.involucrata.The optimum parameters were established as followings:4 BV(bed volume)sample extract whose pH value was adjusted to pH 2-3 by HCl was passed through the column with a flow rate of 1 BV/h,12 h later,the column was washed with 4 BV water,6 BV 30% ethanol and 4 BV 50% ethanol,respectively.The combined 30% and 50% ethanolic elutes were taken as object products.Conclusion The contents of active constituents were increased to about five times.Macroporous absorption resin HPD400 could be well used in separating and purifying the active constittuents from S.involucrata.