海藻及海藻甘草配伍水煎液中碘含量测定研究

目的　建立海藻及海藻与其他药物配伍后其中碘含量测定方法。方法　用间接碘滴定法测定海藻原药材、海藻与甘草不同比例合煎、单煎后混合液中碘的含量。结果　此方法稳定、可靠 ,加样回收率高。结论　所建立的间接碘滴定法可用于测定海藻及海藻与其他药物配伍后其中碘含量     

A comparative study of Rashkind, Grifka and coil devices in percutaneous closing of patent ductus arteriosus

This study was performed to evaluate the efficacy of transcatheter Coil and Grifka closure of the patent ductus arteriosus in comparison to our experience with the Rashkind umbrella device. Ninety seven patients (36 male and 61 females) underwent occlusion of the PDA. The following variables were compared: age, sex, ductus diameter, morphology, device, occlusion time, residual shunt, multiple device and complications. Data obtained were compared using the Student's test and Chi 2. Median patient age was 7.82 +/- 6.89, forty five patients underwent transcatheter Rashkind-17 closure, 19 patients with Rashkind-12, 18 patients with Coil and 13 patients with Grifka device, in two patients the closure could not be performed. There were differences between the morphology and device used (p = 0.008), between the ductus diameter and device used (p < 0.001). There was immediate closure in 26.7% in the Rashkind-17 group compared with, 57.9% for the Rashkind-12 group, 83.3% for Coil group and of 91.7% for Grifka group. The occlusion within 24 hrs of implantation was 60% with Rashkind-17, 78.9% with Rashkind-12, 94.4% with Coil and 100% with Grifka. Residual shunt persisted for more than a year in 7 patients with Rashkind-17 and 1 with Rashkind 12, (p = 0.001), in 4 patients two devices wore placed. The complications were, 15.5% for Rashkind-17, 26.3% for Rashkind-12, 5.2% for Coil and 30% for Grifka, (p = 0.004), one coil and one Grifka embolized. Transcatheter Coil and Grifka occlusion are more effective in achieving immediate closure than the Rashkind device. The indication to use each device is made according to the morphology and size of the ductus.     

茶多酚对新生大鼠卵巢发育的影响

目的:探讨茶多酚对新生大鼠卵泡发育和卵母细胞凋亡的影响及相关调控机制。方法:受孕11.5dSD大鼠灌胃茶多酚(100mg/kg,qd)直至分娩,分别用多聚甲醛固定出生后1d、2d、4d、8d龄雌仔鼠卵巢(A组),同时将正常出生后1d的雌幼SD大鼠腹腔注射茶多酚(50mg/kg×1-8d),分别固定出生后2d、4d、8d龄卵巢(B组);所有卵巢经HE染色,观察不同发育阶段的卵泡比例,TUNEL(TdT-mediated dUTP Nick-End Labeling)荧光染色检测卵巢内卵母细胞凋亡变化,免疫组化方法观察叉头转录因子(FOXO3a)、促凋亡因子(Bim)和抗凋亡因子(MnSOD2)在卵巢组织中的表达水平,并以母、幼均未处理的正常同龄大鼠卵巢为对照(C组)。结果:在茶多酚干预组(包括A组和B组)卵巢内,1d、2d龄未装配卵泡比例及4d、8d龄原始卵泡比例均高于C组;A组、B组中卵母细胞TUNEL阳性率显著低于C组;FOXO3a、MnSOD2在A组的1d、2d、4d龄卵巢中的表达高于C组,但二组间的Bim表达水平相一致。结论:茶多酚能延缓新生大鼠卵母细胞巢破裂,抑制原始卵泡的发育启动,减少卵泡的消耗,可能有益于延长卵巢的生殖寿命;茶多酚可能通过上调FOXO3a的活性从而抑制原始卵泡的发育启动,同时通过激活其下游靶分子MnSOD2抑制卵母细胞的凋亡,促进卵母细胞的存活。     

成都市城区6～12岁儿童超重和肥胖的流行现状

目的 为了解成都市城区学龄期儿童超重及肥胖的情况,及时对超重及肥胖儿童进行干预和治疗.方法 选取成都市3个城区6所小学共3769名6～12岁健康儿童进行调查,以身高别体重为参数,以WHO肥胖的诊断标准为依据.结果 儿童超重率和肥胖率分别为8.9%和8.5%,总体肥胖-超重比为1.05.肥胖发生率在7～10岁有随年龄增高的趋势,而在11～12岁有随年龄下降的趋势,10岁组肥胖率最高.整体人群中男童肥胖的发生率＞女童,χ2＝29.38,P＜0.01.结论 成都市城区学龄儿童超重及肥胖的发生率虽然远低于国外发达国家,但与国内城市比较仍处于一个较高的水平;特别是学龄期男孩的肥胖应该引起我们的高度重视.     

对国有医院资产授权运营模式的思考

针对我国现有医疗卫生改革的现状及其原因,从医院运营机制角度出发,阐明了医院国有资产授权运营模式的可行性及授权运营具体操作模式,为如何有效解决有限的国有卫生资源投入与人民日益增长的卫生健康需求之间的矛盾提出了一种新的思路.     

Six- and Twelve-Month Outcomes among Homeless Youth Accessing Therapy and Case Management Services through an Urban Drop-in Center

Research Objective. To evaluate the impact of case management and individual therapy offered through a drop-in center for homeless youth on substance use, mental health, housing, education, employment, and medical care utilization.
Study Population. All youth ( n =172) between the ages of 14–24 who accessed treatment services through an urban, southwestern drop-in center were included.
Data Source. Semistructured and self-report questionnaires were administered to youth between October 2002 and April 2005.
Study Design. A repeated measures design was utilized. Youth were assessed at baseline, 6 months, and 12 months postbaseline. Hierarchical linear modeling was used to test the hypotheses.
Principal Findings. Statistically significant improvements were found in substance abuse, mental health, and percent days housed up to 12 months postbaseline. Decreased alcohol and drug use was associated with an increase in housing. However, most youth did not acquire permanent housing, and education, employment, and medical service utilization did not significantly change over time.
Conclusions. While treatment offered through drop-in centers for homeless youth can positively impact homeless youth, policy, funding, and service provision need greater focus, collaboration, and support if youth homelessness is to be successfully addressed.     

西洋参喷施ABT生根粉增产试验

西洋参喷施ＡＢＴ生根粉能够促进生长发育，茎高、茎粗、叶长、叶宽都有明显增长，且减少发病率，叶绿素含量提高２．２７％。参根单产提高３１．５１％。     

Horizontal appendicular dysmetria in four patients with a typical Wallenberg's syndrome

During the acute stage of a Wallenberg's syndrome ipsilateral appendicular dysmetria is frequently seen. The dysmetria is more apparent in the ipsilateral upper extremity. These patients also have a peculiar type of dysmetric eye movements that are characterized by hypermetric saccades toward the side of the lesion and hypometric saccades to the opposite side. We examined four patients with acute Wallenberg's syndrome and found horizontal dysmetria of the affected extremity. Hypermetric arm and hand movements were present to the side of the lesion and hypometric movements toward the opposite side. This type of dysmetria is probably related to the same patophysiological mechanism that underlies dysmetric eye movements in the Wallenberg's syndrome. The dysmetria tends to disappear with time although it continues to be present in some patients six months after the ischemic damage.