鱼腥草注射液佐治下呼吸道感染的疗效观察

目的观察鱼腥草注射液佐治下呼吸道感染的疗效及安全性.方法将76例急性下呼吸道感染患者随机分为治疗组和对照组,两组均予内科常规治疗,治疗组则另予鱼腥草注射液治疗.结果治疗组的总有效率为94.7%,显著优于对照组的73.7%(x2=6.33,P＜0.05),且未见明显副作用.结论鱼腥草注射液佐治急性下呼吸道感染安全、有效,值得推广.     

抗抑郁治疗对卒中后抑郁及神经功能康复的影响

目的探讨氟西汀抗抑郁治疗对卒中后抑郁(PSD)患者的抑郁症状和神经功能康复的影响及其安全性。方法将91例PSD患者随机分为治疗组46例和对照组45例,两组同时应用脑血管病治疗药物,治疗组加用氟西汀治疗。采用汉密尔顿抑郁量表(HAMD)、日常生活自理能力量表(Barthel指数记分)和神经功能缺损程度评定疗效和功能改善状况。结果治疗后治疗组HAMD量表减分率与对照组比较,差异有高度显著性(P<0.01),神经功能缺损程度积分值降低与Barthel评分提高,治疗组优于对照组(P<0.05和P<0.01)。治疗组抑郁症状改善的显效率和神经功能缺损改善的总有效率均显著高于对照组(P<0.001和P<0.05)。氟西汀的主要副反应为失眠、焦虑和恶心。结论氟西汀抗抑郁治疗能明显改善PSD患者的抑郁症状和神经功能,且副反应轻。     

肿瘤坏死因子突变体对胃癌细胞肿瘤坏死因子受体的调节

本文采用放射配基结合分析法和蛋白合成抑制试验研究了肿瘤坏死因子突变体（ＴＮＦ－ｍ）对ＳＧＣ７９０１细胞ＴＮＦ受体的影响。结果表明，ＴＮＦ－ｍ可显著降低ＳＧＣ７９０１细胞表面ＴＮＦ受体数目并呈剂量、时间、温度依赖关系，对受体亲和力无影响，ＴＮＦ－ｍ可使胞浆ＴＮＦ受体数目增加，去除ＴＮＦ－ｍ３ｈ后，膜ＴＮＦ受体大约可恢复６０％，显著高于胰蛋白酶处理组ＴＮＦ受体的恢复率，放线菌素Ｄ对ＴＮＦ－ｍ处理的细胞ＴＮＦ受体的抑制作用显著低于对照组，且ＴＮＦ受体的半衰期约为９０ｍｉｎ．据此认为，ＴＮＦ－ｍ通过介导ＴＮＦ受体的内化从而使膜ＴＮＦ受体数降低。     

理中汤合四神丸对脾肾阳虚型溃疡性结肠炎大鼠JNK/Beclin 1/Bcl-2信号通路相关蛋白及基因表达的影响

目的观察以温补脾肾法为指导的理中汤合四神丸对脾肾阳虚型溃疡性结肠炎(UC)大鼠的影响,探讨其可能的作用机制。方法制备脾肾阳型UC大鼠模型,将成模大鼠随机分为模型组、柳氮磺吡啶组(SASP组)、肠胃宁组和理中汤合四神丸低、中、高剂量组,每组16只,同时设空白组16只。各给药组予相应药物灌胃,空白组和模型组予等体积蒸馏水灌胃,连续21 d。观察大鼠结肠黏膜组织损伤情况,对结肠黏膜损伤指数(CMDI)进行评分;HE染色观察大鼠结肠组织病理变化;免疫组化和RT-qPCR分别检测大鼠结肠组织JNK1、Beclin 1、Bcl-2、LC3B蛋白和m RNA表达;Western blot检测大鼠结肠组织JNK1、p-JNK1、Bcl-2、p-Bcl-2、Beclin 1和LC3B蛋白表达,并计算LC3BⅡ/LC3BⅠ比值。结果与空白组比较,模型组大鼠CMDI评分显著升高(P<0.01),结肠组织腺体排列紊乱,黏膜层消失,有大量炎性细胞浸润,黏膜基层与基底层分界不清;结肠组织JNK1、Beclin 1、Bcl-2、LC3B mRNA和蛋白表达显著升高(P<0.01),p-JNK1、p-Bc...     

γ干扰素对胃癌细胞TNF受体表达和TNF突变体代谢的影响

为探讨γ干扰素（ＩＦＮ）对胃癌细胞（ＳＧＣ７９０１）肿瘤坏死因子（ＴＮＦ）受体的影响及与肿瘤坏死因子突变体（ＴＮＦｍ）协同抗肿瘤的机制，以１２５ＩＴＮＦｍ为配体，用放射受体分析法研究γＩＦＮ对ＳＧＣ７９０１细胞ＴＮＦ受体表达及与ＴＮＦｍ内化和降解的影响。并用ＭＴＴ法研究γＩＦＮ与ＴＮＦｍ协同抗肿瘤作用。结果：γＩＦＮ使ＳＧＣ７９０１细胞ＴＮＦ受体的数量由０５６×１０－１１ｎｍｏｌ／细胞增至０９４×１０－１１ｎｍｏｌ／细胞，而对受体的亲和力无影响（Ｋｄ为２７８×１０－１１和２６４×１０－１０ｍｏｌ／Ｌ，ｔ＝１２，Ｐ＞０５）；γＩＦＮ可明显增加ＴＮＦｍ内化和降解的绝对数量，而对其比率无影响。γＩＦＮ使ＴＮＦｍ对ＳＧＣ７９０１细胞的最大杀伤率达到９６％（ｔ＝５２，Ｐ＜００１）。提示：γＩＦＮ通过上调ＴＮＦ受体而加强ＴＮＦｍ的体外抗肿瘤作用。     

30例白血病眼底荧光血管造影的临床分析

本文对30例白血病作了眼底荧光血管造影,结果显示,白血病限底病的发生率为36.7%,主要是由于白血病细胞浸润所致,与中枢神经系统白血病的发生有平行关系。其中眼底毛细血管扩张20例,小静脉扩张11例,透见荧光(色素上皮脱失)11例,出血遮蔽荧光8例,视乳头水肿3例。     

miR-210 agonist alleviates renal inflammatory response and fibrosis in diabetic kidney disease rats

Objective To investigate the protective effect and mechanism of microRNA-210 agonist (agomiR-210) on kidney in diabetic kidney disease (DKD) rats. Methods Thirty-six 5-week-old male SD rats were divided into normal control (NC) group, agomiR-NC control group, agomiR-210 control group, DKD model group, DKD+agomiR-NC group and DKD+agomiR-210 group, with 6 rats in each group. Diabetic rats were established by a high-fat diet combined with intraperitoneal injection of streptozotocin (STZ), then were fed for 12 consecutive weeks to construct DKD model rats. During 2nd-4th week of continuous feeding, the rats in DKD+agomiR-210 group were injected with 20 nmol/kg agomiR-210 via tail vein twice a week. Blood glucose levels, 24 h urine albumin (Alb) and 24 h urine microalbumin (MAU) contents were measured regularly. At the end of the 12th week, the rats were sacrificed, and renal tissues were collected. The renal histopathological changes were assessed by HE, PAS and Masson staining methods. The mRNA and protein expression levels of tumor necrosis factor-α (TNF-α), interleukin (IL)-1β and IL-6 in renal tissues were detected by RT-qPCR and Western blot. The distributions and expressions of α-smooth muscle actin (α-SMA), typeⅠ collagen (Col-Ⅰ), type Ⅳ collagen (Col-Ⅳ) and fibronectin (FN) in renal tissues were detected by immunohistochemical method. The protein expression levels of phospho(p)-Smad3 and p-NF-κB p65 in renal tissues were detected by Western blot and immunohistochemical methods. Results Compared with DKD model group, the renal pathological damages in DKD+agomiR-210 group were improved, the blood glucose level, glycogen deposition and collagen accumulation were significantly decreased (all P＜0.05), the urinary excretions of Alb and MAU were significantly reduced (all P＜0.01), and the expressions of TNF-α, IL-1β, IL-6, α-SMA, Col-Ⅰ, Col-Ⅳ, FN, p-Smad3 and p-NF-κB p65 in renal tissues were significantly decreased (all P＜0.01). Conclusion AgomiR-210 can alleviate renal pathological changes and urinary Alb and MAU excretion in rats with DKD, which may be related to its inhibition of Smad3 and NF-κB activity.     

2000年中药、生化药细菌内毒素检查法的研究概况

应用细菌内毒素检查法检测药品内毒素,具有灵敏度高,方法简便,正日益受到人们的重视。笔者对在2000年间全国应用细菌内毒素检查法检测中药、生化药品细菌内毒素的研究情况,综述如下。