用LC／MS／MS和RP—HPLC法对泻心汤煎煮产生的沉淀物的研究

目的：用ＬＣ／ＭＳ／ＭＳ和ＲＰ－ＨＰＬＣ法研究沔心汤煎煮产生的沉淀物。方法：利用ＬＣ－ＭＳ－ＭＳ法对淀心肠沉淀物进行了初步研究,又利用ＲＰ－ＨＰＬＣ法,测定了淀心汤沉淀物中小檗碱在小鼠体内的吸收。结果：发现其中含有小檗碱、巴马丁碱、黄连碱、药根碱,但在给小鼠灌服淀心汤沉淀物后２４ｈ内的几个时间段中,均未能从血浆中测到小檗碱。结论：淀心汤沉淀物进入体内后小檗碱并未进入血液,推测如果淀心汤沉淀物具有恬     

藁本中2种主要活性成分的高效液相色谱定量分析方法研究

目的：建立藁本中2种主要活性成分：阿魏酸及藁本内酯的定量分析方法,以评价藁本药材质量。方法：以ODS柱分析,乙腈－水（磷酸调pH至4.0)为流动相进行梯度洗脱,检测波长为284nm,采用外标法测定了19个产地的藁本样品,结果：19个产地的藁本样品中均含有阿魏酸及藁本内酯,且含量均较高。结论：阿魏酸及藁本内酯可以做为藁本药材的质量评价指标。     

Motor learning in animal models of Parkinson's disease: Aberrant synaptic plasticity in the motor cortex

In Parkinson's disease (PD), dopamine depletion causes major changes in the brain, resulting in the typical cardinal motor features of the disease. PD neuropathology has been restricted to postmortem examinations, which are limited to only a single time of PD progression. Models of PD in which dopamine tone in the brain is chemically or physically disrupted are valuable tools in understanding the mechanisms of the disease. The basal ganglia have been well studied in the context of PD, and circuit changes in response to dopamine loss have been linked to the motor dysfunctions in PD. However, the etiology of the cognitive dysfunctions that are comorbid in PD patients has remained unclear until now. In this article, we review recent studies exploring how dopamine depletion affects the motor cortex at the synaptic level. In particular, we highlight our recent findings on abnormal spine dynamics in the motor cortex of PD mouse models through in vivo time‐lapse imaging and motor skill behavior assays. In combination with previous studies, a role of the motor cortex in skill learning and the impairment of this ability with the loss of dopamine are becoming more apparent. Taken together, we conclude with a discussion on the potential role for the motor cortex in PD, with the possibility of targeting the motor cortex for future PD therapeutics. © 2017 International Parkinson and Movement Disorder Society     

Primary squamous cell carcinoma of the fallopian tube

To the editor： Primary squamous cell carcinoma of the fallopian tube （PSCCFT） is one of the rarest gynecological malignancies with only ten reported cases in the English language literature. We present the eleventh case and briefly review it.     

抗肿瘤药物相关肾损害患者的临床病理特点分析

背景 肿瘤治疗措施导致的肾损害日益多见,而该领域关于相应患者肾脏病理的研究较少。目的 分析抗肿瘤药物相关肾损害患者的临床及肾脏病理特点。方法 选取2013年10月至2021年8月在河北医科大学第四医院肾内科住院并行肾穿刺活检的≥18岁患者112例,肾损害出现时间位于发现肿瘤后或者与肿瘤同一时间出现,肾损害与恶性肿瘤或者肿瘤相关治疗存在直接或间接关系;既往应用化疗、分子靶向药物或免疫检查点抑制剂等全身治疗的患者纳入抗肿瘤药物组(65例),其余患者纳入未用抗肿瘤药物组(47例)。收集患者的一般资料、实验室检查和病理资料。分析抗肿瘤药物相关肾损害患者的临床及肾脏病理特点。结果 抗肿瘤药物组中59例实体瘤患者发生急性肾损伤(AKI)30例(50.8%),6例血液系统肿瘤患者发生AKI 4例(4/6)。未用抗肿瘤药物组35例实体瘤患者中发生AKI 11例(31.4%),12例血液系统肿瘤患者发生AKI 6例(50.0%)。抗肿瘤药物组治疗前血肌酐低于治疗后(P<0.001)。抗肿瘤药物组性别、吸烟比例、血清白蛋白、尿蛋白阳性率与未用抗肿瘤药物组比较,差异有统计学意义(P<0.05);...