短期加用替罗非班在支架辅助弹簧圈栓塞梭形动脉瘤中的安全性与有效性研究

目的评估支架辅助弹簧圈栓塞梭形动脉瘤术中及术后24 h内,在标准双抗血小板治疗的基础上,短期应用小剂量替罗非班在降低缺血并发症方面的安全性及有效性。 方法回顾分析我中心2015年1月至2020年12月颅内未破裂梭形动脉瘤接受支架辅助弹簧圈栓塞治疗,并在手术过程中及术后24 h内静脉接受替罗非班（0.1 μg/kg/min）预防血小板聚集的患者资料。记录并分析围手术期并发症,动脉瘤栓塞程度及术后3个月随访时的mRS评分。 结果本研究共纳入38例患者,39枚动脉瘤,动脉瘤平均直径（6.4±2.1）mm。其中,26枚动脉瘤接受了单支架辅助弹簧圈栓塞治疗,13枚动脉瘤接受了双支架辅助弹簧圈栓塞治疗。术后即刻78.9%（30/38）的动脉瘤实现完全栓塞;在26例接受脑血管造影复查的患者中,92.3%（24/26）的患者动脉瘤实现完全闭塞。围手术期缺血并发症发生率为7.9%（3/38）;无出血并发症发生。3个月随访的良好预后率为97.4%（37/38） （mRS评分为0~1分）。 结论支架辅助弹簧圈栓塞梭形动脉瘤术中及术后24 h内,静脉加用小剂量替罗非班未增加出血并发症。但是,由于样本量偏少,缺少对比,在降低缺血并发症方面的有效性尚需进一步证实。     

Effect of interferon-gamma on hepatic fibrosis in chronic hepatitis B virus infection: a randomized controlled study.

BACKGROUND & AIMS: Hepatic fibrosis due to chronic HBV infection has enormous socioeconomic impact. Besides strategies targeting virus elimination, prevention or reversal of liver fibrosis is amenable. Given the antifibrotic activity of interferon-gamma (IFN-gamma), a randomized open-labeled multicenter trial was initiated to test IFN-gamma in HBV infection. METHODS: HBsAg-positive patients with biopsy proven hepatic fibrosis (n = 99, stages 2-4, Scheuer criterion) were treated with diammone-glycyrrhizinate and potassium-magnesium aspartate. Sixty-six randomly assigned patients were treated with 50 mug IFN-gamma intramuscularly on a daily basis for 3 months and on alternate days the subsequent 6 months. Efficacy was evaluated by liver biopsy and serologic markers. RESULTS: Fifty-four patients in the IFN-gamma group and 29 patients in the control group completed the study. The hepatic fibrosis score was significantly reduced in 63% of IFN-gamma treated patients compared with 24.1% in the control group by using a semiquantitative scoring system evaluating both liver architecture and fibrotic deposits. Mean values for the total fibrosis score decreased from 13.8 +/- 5.8 to 10.1 +/- 5.1 in the IFN-gamma group (P = .0001), whereas they were unchanged in control subjects (13.2 +/- 6.8 vs 12.6 +/- 4.8, P = .937). The Scheuer system showed 12 out of 54 patients improved >or=1 stage(s) in the IFN-gamma group compared with 1 of 29 in the control group. Antifibrotic activity might be attributed to decreased transforming growth factor-beta signaling via phosphorylated Smad2 and reduced number of activated, alpha-smooth muscle actin positive hepatic stellate cells. CONCLUSIONS: IFN-gamma treatment for 9 months improves fibrosis scores in patients with chronic HBV infection most likely by antagonizing profibrogenic transforming growth factor-beta effects.     

肝细胞再生刺激物质长期使用对慢性肝损害肝细胞倍体影响的实验研究

采用新生小牛(未进食前)肝研制的肝细胞再生刺激物质(HSS),对CCL_4造成慢性肝损伤进行长期治疗.利用同位素~3H=TdR掺入和流式细胞计数分析相结合的方法,探讨HSS长期使用有无致畸作用.结果表明,①Hss在体外、内均能刺激肝细胞DNA合成,其Cpm值低于急性肝损伤增生值;②肝细胞合成周期以Go/1期为主;③增生的肝细胞DNA倍体为4,8倍体等整倍体细胞为主,未见异常非整倍体细胞.我们结论是利用新生小牛肝中制备的HSS长期使用无致畸,致癌”作用.     

国产胸腺肽对健康人PBMC膜白细胞介素2受体和HLA-DR抗原表达的影响

用生物素-链霉亲和素系统免疫细胞化学和流式细胞仪检测mIL-2R和HLA作为考核胸腺肽体外活性的指标,结果表明,25～100μg/ml胸腺肽在体外明显提高mIL-2R和HLA-DR表达率,提示胸腺肽具有激活淋巴细胞的功能,为胸腺肽治疗慢性肝炎的机理提供了理论基础。     

Antitumour properties based on the self‐assembly of camptothecin and carbamoylmannose conjugates

Camptothecin (CPT) and its analogues show potent antitumour activity. However, poor water solubility and severe side effects have restricted their applications in clinical practice. In this paper, a novel self‐assembly based on camptothecin and carbamoylmannose conjugates ( CPT‐Man ) was constructed. The self‐assembly increased the water solubility of camptothecin to 0.64 mg/ml and antitumour activity. Moreover, CPT‐Man could induce obvious cancer cell apoptosis. This work provides a new approach for exploring carbohydrate‐modified antitumour properties by self‐assembled CPT drugs.     

安神胶囊联合喹硫平治疗精神分裂症的临床研究

目的研究安神胶囊联合富马酸喹硫平片治疗精神分裂症的临床疗效。方法选取2016年9月—2019年9月在天津市安定医院治疗的100例精神分裂症患者为研究对象,将患者随机分为对照组和治疗组,每组各50例。对照组患者口服富马酸喹硫平片,第1、2、3、4天分别给予50、100、200、300 mg,之后剂量逐渐增加到有效剂量范围300～450 mg/d,2次/d;治疗组患者在对照组基础上口服安神胶囊,4粒/次,3次/d。两组患者持续治疗2个月。观察两组患者临床疗效,比较两组的阳性和阴性症状量表(PANSS)评分、生活质量综合评定问卷(GQOLI-74)评分和简明精神病量表(BPRS)评分以及血清学指标。结果治疗后,治疗组总有效率显著高于对照组(P0.05)。治疗后,两组患者PANSS评分和BPRS评分明显降低,GQOLI-74评分明显升高(P0.05),且治疗组改善较多(P0.05)。治疗后,两组患者神经元特异性烯醇化酶(NSE)、碱性髓鞘蛋白(MBP)水平均明显降低,脑源性神经营养因子(BDNF)、胶质细胞系来源神经营养因子(GDNF)水平均明显升高(P0.05);且治疗组改善较多(P0.05)。结论安神胶囊联合富马酸喹硫平片治疗精神分裂症具有较好的治疗效果,能够改善患者临床症状,降低血清炎性因子水平,安全性较高,值得在临床上推广应用。