CFTR基因变异致囊性纤维化1例报告并文献复习

目的探讨中国人群囊性纤维化基因型与临床表型的关系。方法回顾分析2015年3月收治的1例囊性纤维化患儿的临床资料,并复习相关文献。结果患儿,女,生后不久开始出现反复咳嗽、咳痰,肺部感染。9岁就诊时有重度营养不良,杵状指(趾),副鼻窦区压痛,双肺散在湿罗音;实验室检查提示胰腺炎;影像学检查提示合并鼻窦炎及支气管扩张;全外显子基因组测序示CFTR基因复合杂合变异,等位基因1,c.1766+5GT(NM_000492.3)剪接突变;等位基因2,c.2805delA:p.L935fs(NM_000492)移码突变;检出基因型匹配囊性纤维化临床表型。检索建库至2018年7月中国知网、万方及PubMed数据库,以"囊性纤维化"和"基因"为关键词组合检索,共检索到7篇文献,报道9例包含c.1766+5GT位点变异的囊性纤维化患儿,加上该例共10例。10例患儿均为中国人,且均以反复咳嗽、咳痰等肺部感染为主要表现,多数合并支气管扩张,仅部分合并胰腺功能不全。结论 c.1766+5GT位点可能是中国人特有的CFTR基因变异位点,与c. 2805 delA:p.L 935 fs变异构成新的复合杂合变异,其临床表型主要以呼吸道感染为主,较少累及消化道。     

The circRNA–miRNA–mRNA regulatory network in systemic lupus erythematosus

Clinical Rheumatology - Systemic lupus erythematosus (SLE) was an autoimmune disease with a large variety of clinical manifestations and involving many organs. Its exact etiology was unclear, and...     

Seasonal influenza vaccination among cancer patients: A systematic review and meta-analysis of the determinants

Cancer patients are among high-risk individuals for whom seasonal influenza vaccine (SIV) is recommended, but rates of vaccination in this subpopulation remain suboptimal; even in jurisdictions with universal influenza vaccination programs. We sought to summarize the evidence to better understand the determinants of SIV uptake (vaccine receipt) among cancer patients. We searched MEDLINE, Embase, and CINAHL from 2000 to February 12, 2020, focusing on articles on the determinants of seasonal influenza vaccination among cancer patients, published in English. Study selection was conducted independently by 2 reviewers. One reviewer extracted data from the included studies and another reviewer checked the extracted data for errors. Outcomes were sociodemographic and health-related factors. We pooled adjusted results from studies using the inverse variance, random-effects method, and reported the odds ratios (OR) and their 95% confidence intervals (CI). Out of 2664 citations, 10 studies (mostly from USA and South Korea) met our eligibility criteria. Overall, being older (OR 2.23, 95% CI 1.46-3.38; I² 92.3%, [6 studies]), a nonsmoker (1.43, 1.32-1.51; I² 0%, [4 studies]), having a chronic illness (1.18, 1.07-1.29; I² 15.7%, [5 studies]), having had a medical check-up in the past year (1.75, 1.65-1.86; I² 0%, [2 studies]), and having health insurance (1.39, 1.13-1.72; I² 21.8%, [3 studies]) were associated with increased SIV uptake. Compared with being African-American, being Caucasian was also associated with increased SIV uptake (1.79, 1.47-2.13; I² 10.7%, [3 studies]). Limited evidence suggests seasonal influenza vaccination among cancer patients may be determined by some sociodemographic and health-related factors.     

IL-21-mediated expansion of Vγ9Vδ2 T cells is limited by the Tim-3 pathway

Vγ9Vδ2 T cells are the main γδ T subset in the peripheral blood and lymphoid organs. Previous studies have shown that Vγ9Vδ2 T cells could expand in the presence of phosphoantigens and IL-2 and exert antitumor functions. However, their potency was limited because sustained proliferation could not be achieved, possibly due to exhaustion caused by prolonged antigenic stimulation. In this study, we examined the proliferative response of Vγ9Vδ2 T cells to IL-21, a cytokine previously shown to promote NK cell and CD8 T cell cytotoxicity. We found that IL-21 could significantly improve the proliferation of phosphoantigen-stimulated Vγ9Vδ2 T cells in a dose-dependent manner. However, in acute myeloid leukemia (AML) patients, the efficacy of IL-21 was significantly reduced. Vγ9Vδ2 T cells from AML patients exhibited lower expression of IL-21R, and required higher levels of IL-21 for expansion. IL-21-treated Vγ9Vδ2 T cells from AML patients presented lower increase in STAT1 phosphorylation than Vγ9Vδ2 T cells from healthy volunteers. Interestingly, AML Vγ9Vδ2 T cells presented significantly higher Tim-3 expression than healthy Vγ9Vδ2 T cells. IL-21 treatment further induced Tim-3 upregulation. Blocking Tim-3 increased the proliferation and the STAT phosphorylation in Vγ9Vδ2 T cells in response to IL-21. Together, these results demonstrated that IL-21 could significantly expand the Vγ9Vδ2 T cells, but its efficacy was limited since it also increased the expression of checkpoint molecule Tim-3.     

Characterization and Management of Arrhythmic Events in Young Patients With Brugada Syndrome

Background

Information on young patients with Brugada syndrome (BrS) and arrhythmic events (AEs) is limited.

The Effects of Music Therapy on Pain in Patients with Neuropathic Pain

The aim of this study was to investigate the effect of relaxing music on pain intensity in patients with neuropathic pain. A quasi-experimental study, repeated measures design was used. Thirty patients, aged 18–70 years, with neuropathic pain and hospitalized in an Algology clinic were identified as a convenience sample. Participants received 60 minutes of music therapy. Classical Turkish music was played to patients using a media player (MP3) and headphones. Participants had pain scores taken immediately before the intervention and at the 30th and 60th minutes of the intervention. Data were collected over a 6-month period in 2012. The patients' mean pain intensity scores were reduced by music, and that decrease was progressive over the 30th and 60th minutes of the intervention, indicating a cumulative dose effect. The results of this study implied that the inclusion of music therapy in the routine care of patients with neuropathic pain could provide nurses with an effective practice for reducing patients’ pain intensity.