Non-invasive detection of fecal protein kinase C betaII and zeta messenger RNA: putative biomarkers for colon cancer

We have developed a non-invasive method utilizing feces, containing sloughed colonocytes, as a sensitive technique for detecting diagnostic colonic biomarkers. In this study, we used the rat colon carcinogenesis model to determine if changes in fecal protein kinase C (PKC) expression have predictive value in monitoring the neoplastic process. Weanling rats were injected with saline or azoxymethane (AOM) and 36 weeks later fecal samples and mucosa were collected, poly A+ RNA isolated, and quantitative RT-PCR performed using primers to PKC betaII and zeta. Fecal PKC betaII and zeta mRNA levels were altered by the presence of a tumor, with tumor-bearing animals having a 3-fold higher (P < 0.05) PKC betaII expression as compared with animals without tumors. In addition, AOM-injection increased mucosal PKC betaII mRNA expression compared with saline controls. No effect of tumor incidence on mucosal PKC betaII expression was observed. In contrast, fecal PKC zeta expression was 2.5-fold lower (P < 0.05) in animals injected with azoxymethane versus saline. Since tumor incidence exerts a reciprocal effect on fecal PKC betaII and zeta mRNA expression, data were also expressed as the ratio between PKC betaII and zeta. The isozyme ratio was strongly related to tumor incidence, i.e. ratio for animals with tumors was 2.18 +/- 1.25, animals without tumors was 0.50 +/- 0.16, P = 0.025. We demonstrate that the expression of fecal PKC betaII and zeta may serve as a noninvasive marker for development of colon tumors. A sensitive technique for the detection of colon cancer is of importance since early diagnosis can substantially reduce mortality.      

Replace种植义齿非埋植式手术的临床效果评价

目的评价Replace种植系统采用开放愈合的临床种植及修复效果。方法选择36例100颗行Replace种植体植入体后，同时安放愈合基台，采用开放愈合。上颌4～6个月，下颌3～4个月后行贵金属烤瓷冠或桥修复。并就其种植体成功率、修复体成功率、植体周牙龈状况进行为期3年的随访观察。结果种植体成功率100％，修复体成功率100％，植体周牙龈状况优良。结论Replace系统采用非埋植式手术进行种植及修复具有满意的临床效果。     

病案室自动化系统中数据库资源的优化与合理应用

目前,病案室自动化系统已成为病案室工作模式,数据库的资源十分充实;本文从数据库资源建设、开发、合理使用中提出注意要点,以便更好的利用病案的内在信息,为医教研、现代医院管理服务。     

10年间妊娠合并糖尿病发生状况及母儿结局的变化

目的探讨10年间妊娠合并糖尿病发生状况及母儿结局的变化,并分析其原因。方法近10年我院妊娠合并糖尿病孕妇共计58例,将其分成两组,1994年1月~1998年12月前5年19例患者作为A组,1999年1月~2003年12月后5年39例患者作为B组,对两组资料中孕妇一般情况、病情严重程度、治疗情况及分娩方式、围产儿并发症等情况进行比较分析和统计学处理。结果①A组孕妇孕晚期体重指数(BMI)、年龄、正规产检率、无症状患者均明显低于B组,其确诊孕周晚于B组;②A组治疗前空腹血糖值、酮症酸中毒发生率、早产率均高于B组;③A组单纯饮食控制不佳需加用胰岛素者及血糖控制不良率高于B组,A组经阴道产钳助产率亦高于B组;④A组围产儿并发症,死胎发生率、新生儿窒息率、IRDS发生率均高于B组。结论妊娠合并糖尿病对母儿可造成多种危害,近5年妊娠合并糖尿病发生率虽上升,但母儿并发症并未相应增多,与孕妇健康意识增强、孕期进行筛查,早发现,早治疗密切相关。     

老龄大鼠膀胱生理特性改变的实验研究

目的:探讨老龄大鼠膀胱生理特性的改变及其可能机制.方法:雌性Wistar大鼠分为年轻成年组(6月龄)和老龄组(24月龄),通过在体充盈期膀胱测压,判定逼尿肌不稳定的发生率,比较两组最大膀胱容量和漏尿点压的差异;在水浴条件下,分别测量两组新鲜逼尿肌条的自发收缩频率、应力作用下的反应张力、对电刺激的反应强度等指标,并对实验结果进行统计学分析.结果:与年轻成年组相比,老龄大鼠表现为更易出现逼尿肌不稳定;麻醉条件下最大膀胱容量显著增加(P＜0.01),漏尿点压无明显差异;自发收缩频率显著增高(P＜0.05).老龄大鼠逼尿肌条在应力增加时,张力上升缓慢;应力降低时,张力下降迅速.应力改变时电刺激诱发收缩表现为与单纯应力改变时的张力改变相似,张力增加值在两组间元差异.结论:老龄膀胱功能的改变与自身逼尿肌兴奋性增加、高顺应性、弹性降低有关,肌源性改变是其主要因素.     

Different classes of antibiotics exhibit disparate negative impacts on the therapeutic efficacy of immune checkpoint inhibitors in advanced non-small cell lung cancer patients

It has been reported that antibiotics (ATBs) have adverse effect on the efficacy of treatment with immune checkpoint inhibitors (ICIs) in cancer patients. Since different classes of ATBs have different antibacterial spectrum, we aimed to study whether all ATBs had similar or different negative effects on the clinical outcomes of ICIs in patients with advanced non-small cell lung cancer (NSCLC). Patients with advanced NSCLC who received ICIs were included in this retrospective study and grouped by the class of ATBs they had used around the ICIs treatment time. The overall survival (OS) and the progression free survival (PFS) of patients among these groups were compared using Kaplan-Meier method and Cox proportional hazards model. A total of 148 eligible patients were enrolled, and 80 patients used ATBs. The results indicated that quinolones had no significant negative consequence on the clinical outcomes, while β-lactams significantly shortened the OS and PFS of patients. Furthermore, patients exposed to the combination of β-lactams and quinolones suffered the worst OS and PFS. Moreover, the subgroup analysis of β-lactams revealed that only penicillins, but not carbapenems and cephalosporins, markedly reduced both OS and PFS. In addition to the class of ATBs used, the time frame of ATBs used also affected the clinical outcomes of ICIs therapy. Patients receiving ATBs within 60 days prior to and 30 days after the initiation of ICI treatment had significantly shorter OS and PFS compared with those who did not use ATBs. This study demonstrated that different classes of ATBs had disparate negative impacts on the clinical outcomes, and the use of β-lactams, especially penicillins, should be avoided in advanced NSCLC patients who are receiving or scheduled to receive ICIs within 60 days.     

利用微信公众号宣传平台提升门诊服务质量的实践探讨

为深入贯彻落实"互联网+医疗健康"便民惠民活动,不断优化门诊服务流程,提高服务效率与质量,门诊管理者积极探索,创新服务模式,以微信公众号建设为突破口,主动宣传国家医改新政策,落实分级诊疗,提升服务水平。通过线上服务模式,加强与患者的沟通,提供贯穿诊前、诊中、诊后全流程的信息化便民服务,有效缓解了门诊"三长一短"的现象,实现了患者有序就医,患者满意度提高。尤其在疫情防控期间,对于减少人员聚集、保障就医安全等方面起到了积极的作用。     

Two important factors affecting the prognosis of patients treated with sorafenib followed by regorafenib for advanced hepatocellular carcinoma

ObjectiveTo investigate the effects of hand–foot syndrome (HFS) and fatigue on disease progression and survival in patients treated with sorafenib followed by regorafenib for advanced hepatocellular carcinoma.MethodsA retrospective analysis of patients with advanced hepatocellular carcinoma treated with sorafenib in our hospital from 1 October 2018 to 31 October 2021 was performed, and clinical and pathological data and follow-up results were obtained. Patients were divided into groups according to the severity of HFS and fatigue. Survival analysis among the groups was performed using the Kaplan–Meier method, continuous variables were analyzed using the t-test, and factors associated with survival were evaluated using multivariate Cox regression analysis.ResultsThe study included 150 men and 23 women with a mean age of 60.77 years (range: 40–85 years). The median overall survival (OS), progression-free survival (PFS), and time to tumor progression (TTP) increased with increasing severity of HFS. Conversely, the median OS, PFS, and TTP decreased with increasing severity of fatigueConclusionHFS and fatigue were independent risk factors affecting TTP, PFS, and OS among patients treated with sorafenib followed by regorafenib for advanced hepatocellular carcinoma.     

基于转录组学膀胱癌临床预后模型的构建

目的：筛选膀胱癌预后相关基因，建立膀胱癌预后评分模型。方法：通过UCSC Xena平台下载癌症基因组图谱（TCGA）数据库、基因型和基因表达量关联数据库（GTEx）中406例膀胱癌患者的临床信息和膀胱癌组织RNA测序数据，以及28名健康对照者正常膀胱组织RNA测序数据。采用加权基因共表达网络分析（WGCNA）、单因素Cox回归分析、LASSO回归分析和多因素Cox回归分析筛选膀胱癌预后相关基因并建立预后模型，结合Kaplan-Meier生存曲线、受试者操作特征曲线（ROC曲线）验证模型的准确性。结果：分析得到膀胱癌相关差异表达基因共2308个。WGCNA拟合得到6个基因模块，筛选出对膀胱癌预后有显著作用的基因829个。运用单因素Cox回归与LASSO回归分析筛选出24个与膀胱癌患者预后相关的基因，多因素Cox回归分析训练集数据得到9个作为独立预测因子的基因，分别是 ADCY9、 MAFG_DT、 EMP1、 CAST、 PCOLCE2、 LTBP1、 CSPG4、 NXPH4、 SLC1A6，以此建立膀胱癌患者预后预测模型。训练集中高风险组和低风险组3年存活率分别为31.814%和59.821%，测试集中高风险组和低风险组3年存活率分别为32.745%和68.932%，模型预测训练集和测试集患者预后的ROC曲线下面积均在0.7以上。 结论：本研究建立的模型对膀胱癌高风险和低风险人群的生存情况具有较好的预测能力。