Skin test suppression by antihistamines and the development of subsensitivity

The suppression of skin test reactivity by single doses of six antihistamines was measured before and after a period of daily antihistamine ingestion in 18 subjects. Single doses of hydroxyzine, 50 mg; chlorpheniramine, 16 mg; and promethazine, 50 mg; induced significant suppression of skin test reactivity at 2 hr, whereas the suppression produced by tripelennamine, 100 mg; diphenhydramine, 50 mg; and cyproheptadine, 16 mg; did not differ significantly from that produced by placebo. After 3 wk of treatment with hydroxyzine, 75 mg per day, the suppressive effect of hydroxyzine as well as the five clinically unrelated antihistamines was significantly reduced. Although the response to chlorpheniramine was also reduced after chronic treatment with chlorpheniramine, 24 mg per day, the difference was not statistically significant. We conclude that antihistamines in the doses used differ greatly in their suppressive effect on skin test reactivity. The antihistamine producing the most skin test suppression, hydroxyzine, when it was taken daily for 3 wk, caused the development of partial tolerance not only to its own effect but to those of clinically unrelated antihistamines.     

Ecotropic and dualtropic mink cell focus-inducing murine leukemia viruses can induce a wide spectrum of H-2 controlled lymphoma types

Neonatal infection of C57BL and BALB/c mice by cloned ecotropic and dualtropic mink cell focus-inducing (MCF) murine leukemia viruses (MuLV) induces a wide spectrum of different lymphomas of T, B, and non-T/non-B cell types. Oncogenic dualtropic MCF viruses and poorly oncogenic ecotropic MuLV act synergistically in lymphomagenesis. Within one mouse strain virus-induced T-cell lymphomas arise earlier than B-cell lymphomas after neonatal inoculation of a single-cloned MuLV. The host genetic constitution, notably the H-2 complex has a marked influence on lymphoma type. This H-2 influence can be explained by an H-2-linked difference in penetration of the thymus early in life by oncogenic thymotropic MuLV, which in turn is correlated with, but not necessarily due to the magnitude of the anti-MuLV antibody response.     

Karyotyping chromosomes by electron microscopy. Condensation-inhibition of G bands in human and Chinese hamster chromosomes by a BrdU-Hoechst 33258 treatment

A BrdU-Hoechst 33258 treatment of living cells, which selectively induced condensation-inhibition of G-band chromatin in human and Chinese hamster chromosomes, is presented. As a consequence mitotic chromosomes showed high resolution R-banding patterns when examined by light and electron microscopy. Besides each whole chromosome identification, this procedure also permitted the electron microscopic study of specific structures, such as satellites, secondary constrictions, telomeres, centromeres, as well as G and R bands, some of them not visible by light microscopy. We have also observed that the chromatin of G and R bands behave as blocks of chromatin condensation and that G-band chromatin develops condensation along G₂. Under the BrdU-Hoechst 33258 treatment, chromatin fibers seem to invert their spontaneous pattern of condensation within the chromosomes.     

Ejaculatory incompetence: a theoretical formulation and case illustration

Three theoretical formulations of ejaculatory incompetence have been proposed in the literature. They include: (1) aversive conditioned inhibition of the ejaculatory reflex, (2) an "autosexual" orientation associated with discrepant levels in the cognitive and physiological dimensions of sexual arousal, and (3) a discriminative learning model. These three models are discussed in relation to their theoretical and therapeutic implications. Clinical data supporting the discriminative view is presented.     

我国移动医疗APP服务质量与用户满意度关系研究

目的探讨移动医疗APP服务质量各维度与用户满意度的关系,提出针对性建议,为提高移动医疗APP服务质量提供参考。方法根据更新的信息系统成功理论（UDMISS）,结合移动医疗服务质量模型,建立了移动医疗服务质量与用户满意度关系模型。通过问卷调查,使用PLS-SEM法对模型及假设进行验证。结果移动医疗APP系统质量中的可靠性、效率性、隐私性以及信息质量中的功利效益对用户使用满意度有积极影响,而交互质量对用户使用满意度影响不显著。结论重视应用便利性和患者隐私保护,提高移动医疗APP系统质量;提供个性化服务和心理咨询服务,提高移动医疗APP交互针对性;在确保移动医疗APP信息质量的同时提供适度信息数量,以改善患者使用体验。     

通过医保支付推进医疗质量管理的经验及启示

目的通过介绍典型国家及地区经验,阐述医保如何通过经济手段促进医疗服务质量提升,供我国大陆地区参考。方法采用文献分析法。采取主题词与分类号组合的检索方式,收集美国、英国及我国台湾地区有关医保与医疗服务质量的文献。结果美国实行基于价值支付的奖惩机制,包括医院服务价值购买计划、再入院扣费计划、医院获得性疾病扣费计划;英国实行提升基层医疗服务质量的激励机制;我国台湾地区实行结合医院评价体系的总额预付制。结论为促使我国大陆地区通过医保支付进一步推进医疗质量管理,建议建设卫生主管部门与医保部门有机融合的医疗质量考核系统,采用质量指标的多元计分方式,设计与质量联动的奖惩机制等。     

多元文化需求就医服务体系构建及应用

目的调查外籍患者多元文化服务需求,构建就医服务体系,探究应用效果。方法采用“外籍患者多元文化服务需求问卷”,对某院2020年1月-6月372例外籍就诊患者进行调查,识别其多元文化服务需求,建立就医服务体系。结果外籍患者对语言交流的需求度最高（98.39%）,对医院环境的需求度最低（65.59%）。应用基于多元文化需求的就医服务体系后,外籍患者在语言交流、专业知识、隐私保护、饮食习惯、就诊流程、社交礼仪、医务人员服务态度和医院环境等方面的满意度均得以提高（P＜0.05）。结论多元文化服务需求调查在外籍患者就医服务体系构建中具有重要作用,有助于提高外籍患者就医满意度。     

山东省社区空巢老人社会支持与自理能力现状及关联研究

目的 探讨城市社区空巢老人社会支持与自理能力现状,并分析社会支持对空巢老人自理能力的影响。方法 采取多阶段分层随机抽样方法,抽取山东省城市社区卫生服务机构的2597名空巢老人作为研究对象,采用自编一般资料调查表、社会支持评定量表（SSRS）、日常生活活动能力量表（ADL）进行调查。结果 山东省社区空巢老人社会支持评分为低、中水平占97.2%,ADL受损者占74.1%;社会支持总评分（r=-0.137,P＜0.01）及其主观支持（r=-0.150,P＜0.01）、客观支持（r=-0.086,P＜0.01）维度与日常生活活动能力呈负相关;回归结果显示,不同性别、年龄、婚姻状况、文化程度、患慢性病情况、两周患病情况、社会支持是ADL的影响因素,差异具有统计学意义（P＜0.05）。结论 社区空巢老人自理能力较差,社会支持水平较低,社会支持与空巢老人自理能力呈负相关。通过“政府-社区-家庭”支持系统加强对空巢老人的社会支持,提升老年人自我照顾能力,提高其生活质量。     

Nursing Home Residents’ Functional Trajectories and Mortality After a Transfer to the Emergency Department

ObjectiveTo describe nursing home residents’ (NHRs) functional trajectories and mortality after a transfer to the emergency department (ED).DesignCase-control observational multicenter study.Setting and ParticipantsIn total, 1037 NHRs presenting to 17 EDs in France over 4 nonconsecutive weeks in 2016.MethodsFinite mixture models were fitted to longitudinal data on activities of daily living (ADL) scores before transfer (time 1), during hospitalization (time 2), and within 1 week after discharge (time 3) to identify groups of NHRs following similar functional evolution. Factors associated with mortality were investigated by Cox regressions.ResultsTrajectory modeling identified 4 distinct trajectories of ADL. The first showed a high and stable (across time 1, time 2, and time 3) functional capacity around 5.2/6 ADL points, with breathlessness as the main condition leading to transfer. The second displayed an initial 37.8% decrease in baseline ADL performance (between time 1 and time 2), followed by a 12.5% recovery of baseline ADL performance (time 2?time 3), with fractures as the main condition. The third displayed a similar initial decrease, followed by a 6.7% recovery. The fourth displayed an initial 70.1% decrease, followed by an 8.5% recover, with more complex geriatric polypathology situations. Functional decline was more likely after being transferred for a cerebrovascular condition or for a fracture, after being discharged from ED to a surgery department, and with a heavier burden of distressing symptoms during transfer. Mortality after ED transfer was more likely in older NHRs, those in a more severe condition, those who were hospitalized more frequently in the past month, and those transferred for cerebrovascular conditions or breathlessness.Conclusions and ImplicationsIdentified trajectories and factors associated with functional decline and mortality should help clinicians decide whether to transfer NHRs to ED. NHRs with high functional ability seem to benefit from ED transfers whereas on-site alternatives should be sought for those with poor functional ability.     

互联网医患功能沟通质量综合评价研究

在前期研究基础上,参考TOPSIS综合评价法,对我国互联网医患功能沟通质量进行综合评价。比较了不同患者主动程度组、不同医院级别组、不同医生职称组的沟通质量水平差异,认为在互联网医患沟通中,提升患者主动程度、选择高级别的医院和高职称的医生,对于促进互联网医患功能沟通质量水平提升具有重要意义。