Protection of rat islet viability following heme oxygenase-1 gene transfection via adenoviral vector in vitro

Objective: To investigate the effect of Heme oxygenase-1 (HO-1) gene transfection on the viability of cultured rat islets, and to explore the potential value of HO-1 gene in islet transplantation. Methods:Recombinant adenovirus vector containing human HO-1 gene(Ad-HO-1 ) or enhanced green fluorescent protein gene(Ad-EGFP) was generated by using AdEasy system respectively.The rat islets were transfected with Ad-HO-1, Ad-EGFP or blank vector and then cultured for 7 days. Transfection was confirmed by expression of EGFP and human HO-1 protein detected by fluorescence photographs and western blot, respectively. The insulin release upon different concentration of glucose stimulation was detected using insulin radioimmunoassay kit, and stimulation index (SI) was calculated. Glucose-stimulated insulin release was usedto assess islet viability. Results:Adenovirus vector successfully transferred HO-1 gene to rat islet cells in vitro, and the insulin release upon high level of glucose stimulation and stimulation index(SI) of Ad-HO-1-infected islets were significantly higher than those of Ad-EGFP-infected islets and control islets(P ＜ 0.05).Conclusion: Adenovirus-mediated HO-1 gene transfection is a feasible strategy to confer cytoprotection and therefore protect the viability of cultured rat islets.     

心肌炎患者高频心电图QRS波群的功率谱分析

本文选取６９名心肌炎患者，９４名正常人做为对照。依其年龄不同，共分６组：幼儿心肌炎组，正常幼儿组，学龄心肌炎组，正常学龄组，成人心肌炎组，正常成人组。分别对这６组的Ⅱ导、ａＶＦ导、Ｖ２导、Ｖ５导ＱＲＳ波群０－１０００Ｈｚ、８０－３００Ｈｚ、１００－１０００Ｈｚ３个频段的功率谱（用绝对能量表示）进行了分析。结果提示，不同年龄的心肌炎患者，其心电信号高频频段的能量变化规律不一致。     

系列高频成分节段在正常人中的分布

将１３４例正常人按年龄分为幼儿组、学龄组、青年组和中老年组，分别观察分析了系列高频成分节段的分布特点。其分布无年龄、性别差异（Ｐ＞０．０５），系列高频成分节段对急性病毒性心肌炎的诊断特异性为８２．４１％。各年龄组的特异性分别是幼儿组９０％、学龄组８３．３％、青年组７２．４１％。中老年组８２．０５％。     

Vascular networks of the nucleus lentiformis

Summary The nucleus lentiformis vascular networks were studied in 30 brains by injecting the vascular system with gelatinous Indian ink. The nucleus lentiformis is divided into a medial part, the globus pallidus, and a lateral part, the putamen. These two parts differ completely from one another in their embryology, structure and functions. For these reasons, each part presents a specific vascular network. The putaminal network is dense and shows many similarities with the cerebral cortex vascular network; the pallidal one is simpler and less dense. These two vascular networks are located close to each other without overlapping. Their specificity may be in relation with the histological structure, with the morphogenetic evolution or with the functional activity of both nuclei to which they provide the vascularization.

---

Les réseaux vascularies du noyau lenticulaire

Résumé L'étude des réseaux vasculaires du noyau lenticulaire (NL) est réalisée sur 30 cerveaux dont le système vasculaire a été injecté à l'encre de Chine gélosée. Le NL est constitué par deux parties, le putamen (néostriatum) et le globus pallidus (paléo-striatum), totalement différentes sur les plans morphologique, embryologique et fonctionnel. Chacune de ces parties possède un réseau vasculaire spécifique et caractéristique. Les deux réseaux se côtoient sans se chevaucher. Le réseau vasculaire putaminal est dense et présente de nombreuses similitudes avec le réseau vasculaire du cortex cérébral. Le réseau vasculaire pallidal se caractérise par sa simplicité et sa moindre densité. Leur spécificité peut être en rapport avec la structure histologique, l'évolution morphogénétique et avec l'activité fonctionnelle des noyaux dont ils assurent l'irrigation.

     

L1 knockout mice show dilated ventricles, vermis hypoplasia and impaired exploration patterns

L1 is a neural cell adhesion molecule mainly involved in axon guidance and neuronal migration during brain development. Mutations in the human L1 gene give rise to a complex clinical picture, with mental retardation, neurologic abnormalities and a variable degree of hydrocephalus. Recently, a transgenic mouse model with a targeted null mutation in the L1 gene was generated. These knockout (KO) mice show hypoplasia of the corticospinal tract. Here we have performed further studies of these KO mice including magnetic resonance imaging of the brain, neuropathological analysis and behavioral testing. The ventricular system was shown to be abnormal with dilatation of the lateral ventricles and the 4th ventricle, and an altered shape of the Sylvius aqueduct. Additionally, the cerebellar vermis of the KO mice is hypoplastic. Their exploratory behavior is characterized by stereotype peripheral circling reminiscent of that of rodents with induced cerebellar lesions.      

癫癎患者脑血流速度改变与癫癎灶定侧的关系

目的 :探讨癫发作间期脑血流变化对癫灶定侧的价值。方法 :4 7例癫病人发作间期行经颅多普勒超声脑血流速度测定 ,并与临床、脑电图定位和MRI/CT病灶对比分析。结果 :根据临床症状确定病灶侧的 19例病人中 ,病灶侧脑血流速度改变 (升高和降低 )的比率显著高于双侧脑血流速度对称者 ;在脑电图确定病灶侧的 2 4例病人中 ,病灶侧脑血流速度升高比率显著高于脑血流速度降低和双侧脑血流速度对称者 ;在MRI确定病灶侧的 13例病人中 ,病灶侧脑血流速度增快 7例 ,减慢 2例 ,双侧血流速度对称 4例。结论 :癫病人一侧脑血流速度增高 ,高度提示癫病灶侧。     

不同特征女性人工流产时焦虑、抑郁情绪及影响因素

目的:研究不同特征女性人工流产时焦虑、抑郁情绪评估及影响因素。方法:以2019年1-7月在本院择期行人工流产者105例,其中已婚54例、未婚51例,手术流产62例、药物流产43例。采用焦虑自评量表(SAS)和抑郁自评量表(SDS)评价并比较不同特征者人工流产前焦虑及抑郁程度,多因素logistic分析可能影响因素。结果:不同婚姻状态、文化程度、孕次、产次、流产方式者发生术前焦虑及抑郁程度存在差异(P<0.05),不同年龄、流产次数者术前焦虑及抑郁程度评分未见差异(P>0.05);未婚及手术流产者术前焦虑及抑郁情况最高(P<0.05)。多因素分析,流产妇女婚姻状态、文化程度、产次、孕次以及流产方式均为产生术前焦虑情绪的独立危险因素。结论:未婚及手术流产者流产前负面情绪较高,提示临床在行人工流产中,及时开展健康教育,做好咨询工作,降低流产妇女的负面情绪,提升生殖健康质量。     

Effects of prolactin on HLA- DR and CD40 expressions by human thyrocytes

Objective To study the effects of prolactin (PRL) on HLA- DR and CD40 expressions by human thyrocytes, and to investigate the possible mechanisms for PRL to affect the de velopment of Graves’ disease (GD). Methods Thyrocytes in secondary culture, which were from GD thyroid glands and the tissu es adjacent to the lesions of multinodular goiter and adenoma (control group), w ere treated respectively with ovine PRL (oPRL), interferon- γ (IFN- γ), interl ukin- 4 (IL- 4) and oPRL plus IFN- γ (10 U/ml) or IL- 4 (5 ng/ml) for 7 days . HLA- DR and CD40 expressions on the thyrocytes were determined by immunofluor escent staining and flow cytometry. Results oPRL (12. 5 ng/ml-1000 ng/ml) had no significant direct effect on HLA- DR or C D40 expression. It did not significantly affect the stimulation of HLA- DR exp ressions on the two groups of thyrocyte treated with IFN- γ or on GD thyrocytes treated with IL- 4. oPRL could antagonize the stimulation of CD40 expressions by IFN- γ and the inhibition by IL- 4 on both groups of thyrocytes. The antago nizing effects were related to the concentrations of PRL. IFN- γ- stimulated p ercentages of CD40［+］ thyrocytes and delta mean fluorescence intensity (dMF) in both thyrocyte sources were significantly reduced in the presence of 200 ng/ml oPRL (both GD and Control: P&lt;0. 01 and P&lt;0. 05, respectively; Contro l: P&lt;0. 05) and 1000 ng/ml oPRL (GD: P&lt;0. 01; Control: P&lt;0. 05). oPRL caused significant increasing in IL- 4- inhibited percentages of CD40［+］ ce lls from the two groups of thyrocytes at 12. 5 ng/ml and 1000 ng/ml and dMF fr om GD thyrocytes at 1000 ng/ml (P&lt;0. 05). Conclusions PRL can exert indirect effects on CD40 expressions on thyrocytes by antagonizing the modulatory actions of IFN- γ and IL- 4 with dose- related effects. This m ay be one important mechanism for PRL to affect the development of GD.     

老年人生活满意度与生存质量关系的探讨

目的 分析和探讨老年人生活满意度和生存质量的相互关系。方法 对福州市１０８４例年龄≥６０岁的老年人进行生活满意度和生存质量地流行病学调查,将两组数据分别采用因子分析法和典型相关分析法进行分析。结果 生活满意度与生存质量呈正相关关系;生存质量的高低主要由生活满意度来反映。结论提高生活满意度是改善生存质量的重要措施。     

头孢菌素类抗生素的ADR监察

调查了国内外报道的有关头孢菌素的不良反应,结果表明,头孢菌素是一类较安全的抗生素。与其他类抗生素引起的不良反应相比,其药物副反应（ＡＤＲ）例次较少,但在常规应用剂量下,它也可以引起一些不良反应,有些甚至是十分严重的反应。我国ＡＤＲ监察工作刚刚起步,药物的ＡＤＲ监察制度尚不健全,因此,需逐步宣传普及ＡＤＲ监察工作的性质、目的、意义,确保临床合理用药的安全性。