Molecular xenomonitoring and host identification of Leishmania sand fly vectors in a Mediterranean periurban wildlife park

The epidemiological cycle of zoonotic phlebotomine‐borne Leishmania infantum is a complex system in which domestic animals and wildlife interact and participate in its maintenance and transmission. In this study, we combined entomological surveillance, xenomonitoring of L. infantum and identification of host feeding sources of engorged females to investigate the potential contribution of a periurban wildlife park to leishmaniosis in neighbouring residential areas. Overall, 7,309 sand flies were collected in 111 trap‐days during the summers of 2016–2018 in an endemic area in south‐east Spain. Five different sand fly species were captured, with Phlebotomus perniciosus, the main L. infantum vector in this region, representing the most common species. Sand fly distribution was spatially heterogeneous in terms of species, sexes and female physiological stage (unfed, gravid and engorged females) and related to host distribution and management, and environmental features. None of the 602 sand flies analysed for L. infantum infection by kinetoplast real‐time PCR were positive. We used molecular tools to identify the vertebrate hosts of sand flies and identified 17 host species, mainly mammals. Human DNA was not identified in engorged sand flies. This study provides evidence that wildlife parks in south‐east Spain are ideal grounds for sand fly vectors but do not necessarily increase L. infantum infection risk to humans and dogs living in surrounding residential areas. This is probably because vectors feed mostly on non‐L. infantum competent hosts and this should be investigated for a better understanding of the contribution of wildlife parks to the local epidemiology of L. infantum.     

浙江省德清县县域医共体改革措施与效果分析

目的：分析浙江省德清县县域医共体改革措施及阶段性成效。方法：定性访谈了解医共体整合措施，定量分析医共体建设前后（2016-2018年）各级医疗机构医疗服务利用数据及医共体部分绩效考核数据。结果：医共体在组织、管理、功能、服务方面进行整合，并取得阶段成效：医保基金在县域内支出率有所增加；乡镇卫生院卫生人员数量、医疗收入有所提高，乡镇卫生院住院病人人均医药费有所降低。结论：医共体取得初期成效，应开展以患者健康结局指标为主的长期追踪调查，全面系统评估医共体；保留基层医疗机构地位、功能定位不变；探索实行医共体"总额预付、结余奖励"制度，将医共体发展成以患者健康为中心、基于利益共享机制、分工合作的责任利益共同体。     

Nicotine does not affect stem cell properties requisite for suicide gene therapy against glioma

ABSTRACT

Objective: 

Glioblastoma is one of the most lethal tumors in adult central nervous system with a median survival of a year and half and effective therapeutic strategy is urgently needed. For that reason, stem cell-based suicide gene therapies have attracted much interest because of potent tumor tropism of stem cells and bystander effect. In this current clinical situation, stem cells are promising delivery tool of suicide genes for glioma therapy. Since habitual cigarette smoking still prevails worldwide, we investigated the effect of nicotine on stem cell tropism toward glioma and gap junctional intercellular communication (GJIC) function between glioma and stem cells, both of which are important for suicide gene therapies. Methods: Mouse induced pluripotent stem cell-derived neural stem cells (iPS-NSCs) and human dental pulp mesenchymal stem cells (DPSCs) were used. The effect of nicotine on tumor tropism to glioma-conditioned medium (CM) at a non-cytotoxic concentration was assessed with Matrigel invasion assay. Nicotine effect on GJIC was assessed with the scrape loading/dye transfer (SL/DT) assay for co-culture of glioma and stem cells and the parachute assay among glioma cells using high-content analysis. Results: Tumor tropism of iPS-NSCs toward GL261-CM and DPSCs toward U251-CM was not affected by nicotine (0.1 and 1 µM). Nicotine at the concentrations equivalent to habitual smoking (1 µM) did not affect GJIC of iPS-NSC/GL261 and DPSC/U251 and GJIC among each glioma cells. Conclusions: The study demonstrated that non-cytotoxic concentrations of nicotine did not significantly change the stem cell properties requisite for stem cell-based suicide gene therapy.     

The link between language and action in aging

ObjectiveMany studies have demonstrated the existence of a link between action verb processing and action. However, little is known about the changes in this relationship with aging.MethodTo assess this point, we compare the performances of younger and older people during a priming task consisting of judging whether an image contains a human after listening to an action verb.ResultsIn accordance with previous literature, the results showed that younger people were faster to detect the presence of a human in the image in congruent conditions, namely, when the action verb and the image refer to the same action. However, this effect was not present in older adults’ participants.ConclusionThese findings suggest that the link between action and language decreases with age. We discuss these findings in the context of the embodied view of cognition.     

整脊推拿结合化痰祛瘀方治疗颈源性眩晕伴颈动脉斑块43例

目的:观察整脊推拿结合中药化痰祛瘀方治疗颈源性眩晕伴颈动脉斑块的的效果及安全性。方法:伴有颈动脉斑块的颈源性眩晕患者按随机数字表法分为两组,对照组45例采用基础治疗联合中药化痰祛瘀方,观察组43例在对照组基础上结合整脊推拿干预,治疗后统计比较两组眩晕指征和血脂改善情况。结果:治疗后两组患者眩晕、耳鸣、恶心欲呕、头痛、视力障碍、猝倒发作、颈项不适、反应迟钝等症状的恢复率比较,差异有统计学意义(P<0.01);治疗结束后观察组的总有效率为95.35%,明显优于对照组的77.78%,差异有统计学意义(P<0.05);疗程结束后两组患者血脂均较治疗前有所改善(P<0.05),观察组中的总胆固醇(TC)、低密度脂蛋白(LDL)明显低于对照组,高密度脂蛋白(HDL)明显高于对照组,差异均有统计学意义(P<0.05),但三酰甘油(TG)和对照组比较差异无统计学意义(P> 0.05)。结论:整脊推拿结合化痰祛瘀方治疗颈源性眩晕伴颈动脉斑块,在改善眩晕相关指征和血脂方面疗效较好。     

不同剂量硬膜外分娩镇痛对产后尿潴留的影响

目的探讨不同剂量下罗哌卡因联合舒芬太尼硬膜外分娩镇痛方案安全性和对产后尿潴留的影响。方法选取2018年5月-2019年5月本院妇产科收治的拟行硬膜外分娩镇痛下自然分娩的初产妇80例,随机分为甲方案组和乙方案组,每组40例,甲方案组产妇采取0.1%罗哌卡因+0.3μg/mL舒芬太尼的硬膜外分娩镇痛方案,乙方案组产妇采取0.075%罗哌卡因+0.5μg/mL舒芬太尼的硬膜外分娩镇痛方案,比较两组产妇的视觉模拟评分(VAS)、尿潴留、其他不良反应和新生儿出生后Apgar评分。结果结果显示,两组的镇痛时间差异无统计学意义;与此同时,在子宫颈开口3 cm时(T0)、分娩镇痛后30 min(T1)、宫颈口开口10 cm时(T2)、分娩即刻(T3)和分娩后2 h时(T4)5个时间点的疼痛评分差异均无统计学意义;但麻醉后的其他时间点的疼痛评分与T0比较,均具有统计学意义。甲方案组尿潴留发生率为5.00%,低于乙方案的20.00%,差异具有统计学意义(χ^2=4.114,P=0.043)。两组产妇分娩的新生儿在出生后l min、5 min和10 min时的Apgar评分差异均无统计学意义(P>0.05)。结论两种剂量的分娩镇痛方案均可有效缓解分娩疼痛,但在0.1%罗哌卡因+0.3μg/mL舒芬太尼剂量下产后尿潴留的发生风险更小。     

Development and validation of an observational measure of symptoms of Reactive Attachment Disorder

ABSTRACT

Reactive Attachment Disorder (RAD) is presumed to be a consequence of social neglect and deprivation of the kind particularly associated with institutional care. Despite its clinical relevance there is a lack of assessment tools for RAD based on the direct observation of child–caregiver interaction.

Here we describe the development and validation of such a tool for use with preschool children, the Rating of Inhibited Attachment Disordered Behavior (RInAB). The RInAB is composed of 17 ratings grouped in three subscales assessing (1) Attachment, (2) Exploratory, and (3) Socioemotional behavior.

Participants were 134 institutionalized preschool children (M = 54.84 months; SD = 10.83; 60% boys) and their caregivers.

Adequate reliability was found for RInAB subscales and total score. Confirmatory factor analyses documented the three aforementioned RInAB subscales. Correlational analyses documented: (i) construct validity via positive and significant associations with caregiver sensitivity and quality of child–caregiver relationship; (ii) convergence validity via association evidence with some emotionally/withdrawn inhibited items of the Disturbed Attachment Interview (DAI), as well as, with Child Behavior Checklist (CBCL)’s somatic complaints and withdraw syndrome scales; and (iii) discriminant validity via nonsignificant or negative associations with DAI-indiscriminate subscale, Rating of Infant and Stranger Engagement (RISE) and CBCL-externalizing problems. Discussion highlights the contributions complementary roles of RInAB for a comprehensive assessment of child RAD-related functioning.     

Successful reproduction of adenoviral gizzard erosion in 20-week-old SPF layer-type chickens and efficacious prophylaxis due to live vaccination with an apathogenic fowl adenovirus serotype 1 strain (CELO)

Recently, outbreaks of adenoviral gizzard erosion (AGE) have been documented in pullets and layers housed free range and in enriched cage systems characterized by increased mortality and a negative impact on egg production. In the present study the pathogenicity of a fowl adenovirus serotype 1 (FAdV-1) field strain as well as the aetiological role of a FAdV-8a strain, both isolated from AGE affected pullets, were investigated in vivo in 20-week-old specific-pathogen-free (SPF) layer-type chickens. Furthermore, the efficacy of a single (week 17) and double (week 14 and 17) application of a live vaccine consisting of an apathogenic FAdV-1 (CELO strain) against challenge with virulent FAdV-1 was investigated.For the first time, AGE was successfully reproduced in adult birds after oral infection of 20-week-old SPF birds with a virulent FAdV-1 field isolate, characterized by pathological changes of the gizzard from 7 days post challenge onwards. In addition, a negative impact of the FAdV-1 infection on the development of the reproductive tract was observed. Thus, confirming the pathogenicity and aetiological role of FAdV-1 in the development of AGE and economic losses due to AGE in layers. In contrast, no pathological changes were observed in birds infected with FAdV-8a.Independent of a single or double application of the live FAdV-1 vaccine strain CELO, no gross pathological changes were observed in gizzards post challenge with the virulent FAdV-1, indicating that complete protection of layers against horizontal induction of AGE was achieved. Nonetheless, virulent FAdV-1 was detected in cloacal swabs and gizzards in both vaccinated groups post challenge determined by the application of an amplification refractory mutation system quantitative PCR used to differentiate between vaccine and challenge strains.     

妇科急腹症中的超声临床诊断研究

目的:探讨妇科急腹症中的超声临床诊断研究。方法:纳入40例患者作为研究样本,40例患者均为2017年3月-2019年7月入院接受治疗的妇科急腹症患者,采用随机分组的方式,将40例患者分为两组,每组各20例患者,两组患者接受不同的诊断方式,对照组接受常规诊断,研究组接受超声诊断,对比两组患者诊断准确率。结果:观察并对比两组患者的数据,常规诊断以及超声诊断的临床准确率对比,研究组的准确率高于对照组,两组患者的组间数据对比,表明本次研究具有统计学意义(P<0.05)。结论:妇科急腹症中采用超声诊断,对急腹症类型的诊断效果较为准确,为患者后续的临床治疗提供诊断依据,证实了超声诊断对妇科急腹症在临床诊断上具有重要作用,应提倡将其纳入常规诊断之中。