Audiovisual integration and the P2 component in adult Asperger’s syndrome: An ERP-study

BackgroundA widened temporal window of integration (TWI) in audiovisual processing has been detected for children with autism spectrum disorder. However, research indicates a narrowing of this TWI and an associated change in audiovisual integration in the course of development.MethodsTo further elucidate audiovisual integration processes in adulthood, we compared adult participants with Asperger’s Syndrome (AS) to healthy controls (HC) by using the sound-induced double flash illusion. For a better understanding of underlying neural mechanisms, event-related potentials were measured via electroencephalography (EEG).ResultsThe number of reported sound-induced flash illusions indicated audiovisual integration. A similar TWI size for both, participants with AS and HC, was found. Additionally, enhanced P2 amplitudes were detected for participants with AS compared to HC.ConclusionResults indicate an involvement of attentional processes in audiovisual perception in participants with AS.     

Apelin-13 inhibits apoptosis and excessive autophagy in cerebral ischemia/reperfusion injury

Apelin-13 is a novel endogenous ligand for an angiotensin-like orphan G-protein coupled receptor, and it may be neuroprotective against cerebral ischemia injury. However, the precise mechanisms of the effects of apelin-13 remain to be elucidated. To investigate the effects of apelin-13 on apoptosis and autophagy in models of cerebral ischemia/reperfusion injury, a rat model was established by middle cerebral artery occlusion. Apelin-13(50 μg/kg) was injected into the right ventricle as a treatment. In addition, an SH-SY5 Y cell model was established by oxygen-glucose deprivation/reperfusion, with cells first cultured in sugar-free medium with 95% N2 and 5% CO2 for 4 hours and then cultured in a normal environment with sugar-containing medium for 5 hours. This SH-SY5 Y cell model was treated with 10–7 M apelin-13 for 5 hours. Results showed that apelin-13 protected against cerebral ischemia/reperfusion injury. Apelin-13 treatment alleviated neuronal apoptosis by increasing the ratio of Bcl-2/Bax and significantly decreasing cleaved caspase-3 expression. In addition, apelin-13 significantly inhibited excessive autophagy by regulating the expression of LC3 B, p62, and Beclin1. Furthermore, the expression of Bcl-2 and the phosphatidylinositol-3-kinase(PI3 K)/Akt/mammalian target of rapamycin(mTOR) pathway was markedly increased. Both LY294002(20 μM) and rapamycin(500 nM), which are inhibitors of the PI3 K/Akt/mTOR pathway, significantly attenuated the inhibition of autophagy and apoptosis caused by apelin-13. In conclusion, the findings of the present study suggest that Bcl-2 upregulation and mTOR signaling pathway activation lead to the inhibition of apoptosis and excessive autophagy. These effects are involved in apelin-13-induced neuroprotection against cerebral ischemia/reperfusion injury, both in vivo and in vitro. The study was approved by the Animal Ethical and Welfare Committee of Jining Medical University, China(approval No. 2018-JS-001) in February 2018.     

异牡荆素对非小细胞性肺癌细胞自我更新和凋亡的影响

目的研究异牡荆素(ISO)对非小细胞性肺癌(NSCLC)细胞的影响和潜在的机制。方法将A549和H1650细胞分别分为空白组、低剂量实验组(4μmol·L^-1 ISO)和高剂量实验组(16μmol·L^-1 ISO)。用噻唑蓝法检测NSCLC细胞活性,用肿瘤球形成实验检测NSCLC细胞的细胞球形成率,用Western blot法检测NSCLC细胞凋亡、自我更新、无翅型MMTV整合位点家族/β-连环蛋白(Wnt/β-catenin)信号通路相关蛋白的表达水平。结果与空白组比较,低、高剂量实验组中A549和H1650细胞在24,48和72 h的细胞活性均显著降低。低、高剂量实验组和空白组中A549细胞的细胞球形成率分别为(4.18±0.45)%,(2.01±0.67)%和(6.02±0.57)%,切割的半胱氨酸蛋白酶-3相对表达量分别为0.24±0.08,1.25±0.13和0.06±0.07,SRY相关高迁移率族盒蛋白-2相对表达量分别为0.49±0.04,0.25±0.03和1.00±0.09,Kruppel样因子4相对表达量分别为0.68±0.04,0.44±0.03和1.01±0.06,Wnt1相对表达量分别为0.63±0.06,0.28±0.04和1.00±0.06,β-catenin相对表达量分别为0.41±0.05,0.22±0.03和1.01±0.09;与空白组比较,低、高剂量实验组中A549细胞的上述指标的差异均有统计学意义(P<0.05,P<0.01)。上述3组中H1650细胞的上述指标也呈现一致的现象。结论ISO可能通过抑制Wnt/β-catenin信号通路来抑制NSCLC细胞活性和自我更新,并促进其凋亡。     

Robotic-assisted central pancreatectomy: A minimally invasive approach for benign and low-grade lesions

BackgroundCentrally located pancreatic lesions are often treated with extended pancreaticoduodenectomy or distal pancreatectomy resulting in loss of healthy parenchyma and a high risk of diabetes and exocrine insufficiency. Robotic central pancreatectomy (RCP) is a parenchyma sparring alternative that has been shown safe and feasible [[1], [2]].MethodsIn this article, we describe our operative technique and the perioperative outcomes of a series of RCP for low-grade or benign pancreatic tumors.ResultsSix patients (5 female and 1 man) with a median age of 51.5 (44–68) years underwent a RCP for 2 serous cystadenomas, 2 mucinous cystic tumors, 1 neuroendocrine tumor, and 1 autoimmune pancreatitis. There were no conversions, intraoperative complications, or perioperative transfusions. Median operative time and was 240 (230–291) minutes and median blood loss was 100 (100–400) ml. The median hospital stay was 8 (5–27) days. There were no mortalities, reoperations, or readmissions. One patient developed a grade B pancreatic fistula which was successfully managed conservatively. All resections had free margins and the median tumor size was 2.5 (1.5–3.5) cm. After a mean follow-up of 46 months, no patients presented new-onset diabetes or exocrine insufficiency.ConclusionsRCP represents the least invasive option for both the patient and the pancreatic parenchyma. With a standardized technique, RCP results in low postoperative morbidity and excellent long-term pancreatic function. Although our results are excellent, POPF still represents the main complication of central pancreatectomy with an incidence ranging from 0 to 80% depending on multiple factors such as the surgeon, technique, and pancreatic texture.     

HIV相关淋巴瘤诊治进展

[摘要]　HIV相关淋巴瘤是常见的HIV相关肿瘤之一，在联合抗反转录病毒治疗（combination antiretroviral therapy, cART）出现之前，其治疗效果极差。在cART时代，HIV相关淋巴瘤的基础及临床研究取得了重大进展，这些为挖掘治疗新靶点提供了依据，使优化HIV相关淋巴瘤的诊治成为可能。本文对近年来HIV相关淋巴瘤的诊断和治疗进展进行综述。     

脑卒中幸存者运动依从性影响因素质性研究的Meta整合

目的 系统整合脑卒中幸存者运动依从性的影响因素。方法 计算机检索PubMed、Web of Science、Cochrane library、Embase、CINAHL、PsycINFO、百度、Google、中国期刊全文数据库、万方数据库、中国生物医学数据库和维普中文期刊数据库中有关脑卒中运动依从性影响因素的相关研究,检索时间自建库至2021年11月15日。2名研究员独立筛选、提取、评价文献,遇到分歧小组协商讨论。结果 纳入符合标准的文献13篇,共提炼出完整的研究主题62个,归纳组合形成6个新的类别,2个综合的整合结果。整合结果1： 影响脑卒中患者运动依从性的个人因素;包括个人动机因素,个人能力因素及个人心理因素;整合结果2：影响脑卒中患者运动依从性的外在因素;包括人际关系因素、康复团队因素及社会系统因素。结论 深入理解影响卒中患者康复运动依从性的驱动和阻碍因素,找准提高康复运动依从性的突破口,进而提高患者的运动积极性,提高其生活质量。     

Predictability and Inducibility of Detachment of Prostatic Central Gland Tissue after Prostatic Artery Embolization: Post Hoc Analysis of a Randomized Controlled Trial

Purpose

To assess the frequency and potential predictors of prostatic central gland tissue detachment (CGD), an enucleation-like reaction that sporadically occurred in a randomized controlled trial assessing efficacy and safety of prostatic artery embolization (PAE).