目的探讨肾混合性上皮和间质肿瘤(mixed epithelial and stromal tumor of the kidney,MESTK)临床病理特征。方法收集5例MESTK的临床资料及随访结果,采用HE染色及免疫组织化学染色,观察组织学特征及免疫组织化学特点,并复习相关文献。结...目的探讨肾混合性上皮和间质肿瘤(mixed epithelial and stromal tumor of the kidney,MESTK)临床病理特征。方法收集5例MESTK的临床资料及随访结果,采用HE染色及免疫组织化学染色,观察组织学特征及免疫组织化学特点,并复习相关文献。结果5例均为女性,年龄44~62岁,平均51.2岁。临床表现主要为腰背部疼痛及血尿,影像学检查提示肾脏囊实性占位。病理大体表现为肾脏界线清楚的囊实性肿瘤,多位于肾中极;组织学特征:肿瘤由上皮和间质成分混合构成,上皮排列成小管、微囊、大囊、乳头等结构,间质由梭形细胞组成,疏密不一,可见卵巢样间质、间质水肿及慢性炎症细胞浸润,上皮及间质细胞均未见明显异型性。免疫组织化学:上皮细胞表达广谱细胞角蛋白(CK_(pan))、CK7、PAX-8、P504S,间质细胞大多表达结蛋白(desmin)、平滑肌肌动蛋白(SMA)、雌激素受体(ER)、孕激素受体(PR)、CD10,Ki-67增殖指数低。结论MESTK是一种罕见的良性肾脏肿瘤,好发于围绝经期女性,影像学检查常误诊为囊性肾癌,有独特的病理组织学和免疫组织化学表现,肿物完整切除后,预后良好。展开更多
The present study was designed to determine the effects of a traditional Chinese medicine, called Qishen Yiqi Dropping Pill on chronic hypoxia-induced myocardial injury. To establish a rat chronic hypoxia model to be ...The present study was designed to determine the effects of a traditional Chinese medicine, called Qishen Yiqi Dropping Pill on chronic hypoxia-induced myocardial injury. To establish a rat chronic hypoxia model to be used in the evaluation of the therapeutic effects of the Qishen Yiqi Dropping Pill, Sprague-Dawley(SD) rats were randomly divided into three groups: the control, model, and treatment groups(n = 10 per group). The animals were housed in a plexiglass container. The control animals were under normal oxygen concentration and the model and treatment groups were exposed to air and nitrogen for 5 weeks. The rats in the treatment group were orally administered the Qishen Yiqi Dropping pill(35 mg·kg-1·d-1) for 5 weeks. After the treatment, the cardiac function and morphology were analyzed, and the expression levels of hypoxia-inducible factor 1α(HIF-1α) were determined using Western blotting. Our results indicated that the cardiac function was impaired, cell apoptosis was enhanced, and HIF-1α expression was up-regulated in the model group, compared to the control group. These changes were ameliorated by the treatment with the Qishen Yiqi Dropping Pill. In conclusion, Qishen Yiqi Dropping pill can ameliorate myocardial injury induced by chronic hypoxia, improve cardiac function, and decrease myocardial cell apoptosis, which may provide a basis for its clinical use for the treatment of chronic cardiovascular展开更多
文摘目的探讨肾混合性上皮和间质肿瘤(mixed epithelial and stromal tumor of the kidney,MESTK)临床病理特征。方法收集5例MESTK的临床资料及随访结果,采用HE染色及免疫组织化学染色,观察组织学特征及免疫组织化学特点,并复习相关文献。结果5例均为女性,年龄44~62岁,平均51.2岁。临床表现主要为腰背部疼痛及血尿,影像学检查提示肾脏囊实性占位。病理大体表现为肾脏界线清楚的囊实性肿瘤,多位于肾中极;组织学特征:肿瘤由上皮和间质成分混合构成,上皮排列成小管、微囊、大囊、乳头等结构,间质由梭形细胞组成,疏密不一,可见卵巢样间质、间质水肿及慢性炎症细胞浸润,上皮及间质细胞均未见明显异型性。免疫组织化学:上皮细胞表达广谱细胞角蛋白(CK_(pan))、CK7、PAX-8、P504S,间质细胞大多表达结蛋白(desmin)、平滑肌肌动蛋白(SMA)、雌激素受体(ER)、孕激素受体(PR)、CD10,Ki-67增殖指数低。结论MESTK是一种罕见的良性肾脏肿瘤,好发于围绝经期女性,影像学检查常误诊为囊性肾癌,有独特的病理组织学和免疫组织化学表现,肿物完整切除后,预后良好。
文摘The present study was designed to determine the effects of a traditional Chinese medicine, called Qishen Yiqi Dropping Pill on chronic hypoxia-induced myocardial injury. To establish a rat chronic hypoxia model to be used in the evaluation of the therapeutic effects of the Qishen Yiqi Dropping Pill, Sprague-Dawley(SD) rats were randomly divided into three groups: the control, model, and treatment groups(n = 10 per group). The animals were housed in a plexiglass container. The control animals were under normal oxygen concentration and the model and treatment groups were exposed to air and nitrogen for 5 weeks. The rats in the treatment group were orally administered the Qishen Yiqi Dropping pill(35 mg·kg-1·d-1) for 5 weeks. After the treatment, the cardiac function and morphology were analyzed, and the expression levels of hypoxia-inducible factor 1α(HIF-1α) were determined using Western blotting. Our results indicated that the cardiac function was impaired, cell apoptosis was enhanced, and HIF-1α expression was up-regulated in the model group, compared to the control group. These changes were ameliorated by the treatment with the Qishen Yiqi Dropping Pill. In conclusion, Qishen Yiqi Dropping pill can ameliorate myocardial injury induced by chronic hypoxia, improve cardiac function, and decrease myocardial cell apoptosis, which may provide a basis for its clinical use for the treatment of chronic cardiovascular
