Étude de faisabilité : l’utilisation de l’imagerie médicale en éducation thérapeutique en radiothérapie

PurposeAssess the feasibility of a randomized controlled trial (RCT) exploring the use of medical imaging as a therapeutic education (TPE) intervention in external radiation therapy.Materials and methodsExperimental feasibility trial of “RCT” type carried out in a single-center, between November 2019 and March 2020, following adult patients treated by thoracic radiotherapy. In addition to the information usually given, the experimental group benefited from an intervention consisting in the visualization of their own medical images using the open-source software “Stone of Orthanc”.ResultsForty-nine patients were recruited with a refusal rate of 8.16% (4/49). 20 patients were withdrawn from the study for health reasons (COVID), 10 for medical reasons. All the remaining 15 participants completed the process. Although not significant, the experimental group showed a median gain in the perception of knowledge compared to the control group (+ 1.9 (1.6 – 2.2)) vs (+ 1.4 (1.4 – 1.8)), as well as a decrease in scores related to anxiety (? 3.0 (?4.5 - (?2.0)) vs ? 1.0 (?5.0 - 0.0)) and emotional distress ((? 5.0 (? 7.5 - (? 3.5)) vs (? 2.0 (? 5.0 - (? 1.0)) A significant reduction (p = 0.043) is observed for the depression score ((? 2.0 (?3.0 - (?1.5)) vs (0.0 (0.0 – 0.0)).ConclusionThis study demonstrates the feasibility of the project, with promising preliminary results. Some adaptations in order to conduct a larger-scale RCT are highlighted.     

Activation status of CD56dim natural killer cells is associated with disease activity of patients with systemic lupus erythematosus

Clinical Rheumatology - Decreased natural killer (NK) cells have been reported in systemic lupus erythematosus (SLE) patients. However, the role of NK cells in the pathogenesis of SLE is not well...     

Modulation of microRNAs by aspirin in cardiovascular disease

Aspirin is among the most widely prescribed drugs in cardiovascular and cerebrovascular diseases for both primary and secondary prevention. The major mechanisms underlying its benefits are the inhibitory effects on platelet activation and prostanoid biosynthesis induced by COX-1 and COX-2 inactivation. MicroRNAs (miRNAs) are newly proposed mediators of the effects of aspirin. In this review, we summarize the evidence on the links between miRNAs and aspirin use in relation to cardiovascular diseases. In addition, we discuss the studies suggesting a possible role for miRNAs as biomarkers of aspirin resistance, a condition during which atherothrombotic events occur despite aspirin use, and which affects a considerable proportion of patients with cardiovascular disease.     

高分辨弥散加权成像在心房颤动导管消融围术期无症状脑栓塞发生的评估价值

目的比较高分辨弥散加权成像（hDWI）和常规DWI（cDWI）检测心房颤动（房颤）导管消融相关无症状性脑栓塞（ACE）的发生率及其特征。 方法连续入组2018年11月至2018年12月南京医科大学第一附属医院的32例房颤消融患者,以及上海市东方医院2019年1月至2019年2月的18例房颤消融患者。消融前24 h进行头颅高分辨率DWI检查以除外近期脑栓塞事件,消融后48 h内重复hDWI和cDWI检查。比较同一患者消融术后hDWI与cDWI中ACE的发生率、数量、大小和位置。 结果与cDWI相比,hDWI显示急性ACE的发生率更高（70%对42%,P<0.001）,ACE病灶数量明显更多（102对42,P < 0.001）,且hDWI测量的病灶尺寸较大（5.42 mm对4.21 mm,P < 0.001）。多因素回归分析显示,左心室射血分数受损（P=0.047）和术中激活凝血时间较低（P=0.003）与ACE发生相关。 结论hDWI能够更好地显示房颤消融相关ACE的发病情况及病灶特点。在评估ACE的研究中应考虑磁共振设置。     

PARP-1 inhibitor-AG14361 suppresses acute allograft rejection via stabilizing CD4+FoxP3+ regulatory T cells

Acute allograft rejection is the most common complication in organ transplantation leading to organ loss. Treg cells play an important role in preventing acute rejection, but they are unstable and easily lose function. Poly(ADP-ribose) polymerase 1(PARP-1) is involved in the differentiation stabilization of Treg cells, it has been suggested that PARP-1 inhibition could prevent acute rejection and prolong allograft survival. This study investigated AG14361 effects on acute allograft rejection. We used a fully MHC-mismatched murine heart transplantation model to compare the effect of PARP-1 inhibitor-AG14361 on alloimmunity to the control. Mice treated with PARP-1 inhibitors showed a longer median survival time of allografts (MS14 compared with the control group, MST was 8 days, and AG14361 was 6 days, P = 0.019). The combination of sirolimus and AG14361 significantly delayed allograft MST (AG14361 + sirolimus for 30 days, sirolimus for 16 days, P = 0.002). AG14361 markedly augmented the number of the CD25+FoxP3+ Treg cells in the graft and periphery. In addition, it could enhance the suppressive function of Treg cells by upregulating the level of CTLA-4, PD-1 and ICOS. In vivo, the Treg/Th17 ratio increased significantly in the AG14351 group compared to the control. In the combination with sirolimus treatment, AG14361 promoted the long-term allograft survival. Our results highlight novel effects of a PARP-1 inhibitor. PARP-1 inhibitor AG14361 may be a promising agent to attenuate acute allograft rejection as it can maintain the number and function of Treg cells in allografts.     

Factors associated with the perceptions of eHealth technology of Chinese nurses and nursing students

AimThe current study sought to assess the perceptions of eHealth technology of nurses and nursing students in China and to examine the association between these perceptions and demographic factors.BackgroundDespite the increasing use of eHealth technologies in China and across the globe, the perceptions of practicing and student nurses remain minimally explored. Findings from such an inquiry can potentially inform actions and policies to improve the uptake of eHealth technologies among Chinese nurses.DesignThis was a cross-sectional study with a real-time online survey.MethodsA convenience sample of 1338 nurses and nursing students from Mainland China participated in the study. Their perceptions of eHealth technology were collected using the Chinese version of the Perceptions of eHealth Technology Scale. The Kruskal-Wallis test and multiple linear regression analysis were used to examine the relationship between demographic variables (age group, gender, occupation, education level, position and clinical experience) and perceptions of eHealth technology. All study procedures adhered to the STROBE guidelines.ResultsMost participants were aged between 20 and 29 (55.8%). Nearly half (42.5%) were frontline clinical nursing staff, some were nursing students (36.2%), academic nursing staff (12.3%) and clinical nursing management staff (9.0%). Regardless of the differences in their demographic characteristics, the participants had higher mean scores in “Perception of eHealth applications” and lower mean scores in “Knowledge of eHealth technology”. Participants with doctoral degree had a higher mean total score and higher sub-scale scores in knowledge of eHealth technology, perception of the advantages of eHealth technology and perception of eHealth applications; and the lowest scores in perception of the disadvantages of eHealth technology and perception of eHealth applications. Occupation, position and clinical experience were found to be the demographic characteristics associated with eHealth perceptions, before adjusting for age and gender. Education level was associated with eHealth perceptions regardless of adjustment.ConclusionOverall, participants had higher scores on perceptions of eHealth applications but lower scores on knowledge of eHealth technology. Considering the association between education and all subscales and overall scores, it may be essential to implement continuing professional education for nurses to improve their knowledge of eHealth applications. Encouragement to use available eHealth digital technologies may also be helpful to improve perceptions of eHealth.     

见习环节管理对临床见习教学质量影响的研究

见习环节管理对临床见习教学质量影响的研究,是通过加强对临床见习前期、见习期间、见习后期三个环节的管理,来控制见习教学全过程,使见习教学计划目标的制定、见习过程的组织与执行、见习手段和方法、见习效果和质量的评估等见习教学管理要素形成封闭环,重视过程管理、细化管理流程、明确管理目标、系统评价见习教学质量,达到持续改进见习带教质量的目的,体现了“以学生为中心”的教学管理理念,为适应新的医学教学管理发展模式需要,提高临床见习教学质量提供了新方法。     

The role of ficolins and MASPs in hereditary angioedema due to C1-inhibitor deficiency

Background and ObjectiveHereditary angioedema due to C1-inhibitor deficiency (HAE-C1-INH) causes disturbances in the complement system. However, the influence of HAE-C1-INH on the lectin pathway of complement is unresolved. Thus, we studied the main initiator molecules, enzymes and regulators in the lectin pathway in patients with HAE-C1-INH.MethodsThe serum concentrations of ficolin-2, ficolin-3, MBL, MASP-2, MASP-3, and MAP-1 were measured during symptom-free periods in 91 patients with HAE-C1-INH, and in 100 healthy controls using sandwich ELISAs.ResultsCompared with controls, the levels of ficolin-2 (p < 0.0001) and MASP-2 (p = 0.0238) were reduced, while the levels of MBL and MASP-3 were elevated (p = 0.0028 and p < 0.0001, respectively) in HAE-C1-INH patients. Ficolin-3 and MAP-1 levels did not differ significantly between the two groups. Ficolin-2 correlated with MASP-3 in patients (r = 0.3443, p = 0.0008), while these parameters showed an opposite relationship in controls (r = −0.4625, p < 0.0001). In the patients, ficolin-3 correlated with MASP-2 (r = 0.3698, p = 0.001). Ficolin-2, -3, and MAP-1 correlated negatively with the annual requirement of plasma derived C1-INH concentrate (r = −0.2863, p = 0.0059; r = −0.2654, p = 0.0110 and r = −0.2501, p = 0.0168, respectively). Ficolin-3 showed a negative correlation with the annual number of attacks (r = −0.2478, p = 0.0179).ConclusionsWe found significant differences between patients and controls in the levels of some of the molecules belonging to the lectin complement pathway. Low concentrations of particularly ficolin-2 and -3 were inversely correlated with the severity of HAE-C1-INH, while this was not observed for MBL. This suggests a previously unrecognized involvement of the ficolin-dependent lectin complement pathway in the pathophysiology of HAE-C1-INH.