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目的 观察尼妥珠单抗联合TP方案诱导化疗并序贯同期放化疗对局部晚期鼻咽癌的疗效、不良反应及预后因素。方法 回顾局部晚期鼻咽癌患者68例,其中观察组(尼妥珠单抗联合TP方案诱导化疗组)32例和对照组(TP方案诱导化疗组)36例,诱导治疗2或3周期后,两组均接受顺铂化疗同期的调强放疗(IMRT),然后比较两组在诱导治疗和同期放化疗阶段的疗效及不良反应。结果 观察组对颈部淋巴结的缓解率优于对照组(90.6%vs70%),差异有统计学意义(P=0.031)。在诱导治疗和同期放化疗阶段,两组近期和远期不良反应均无统计学差异(P均大于0.05)。临床分期和治疗方式是影响局部晚期鼻咽癌预后的独立因素。结论 观察组对局部晚期鼻咽癌具有更好的颈部淋巴结缓解率,且在诱导治疗和同期放化疗阶段不良反应未明显增加,安全性较高;临床分期较晚(Ⅳa期)和治疗中未加尼妥珠单抗是局部晚期鼻咽癌发生发展的独立危险因素。  相似文献   
3.
  目的  阐明一起疑似由蜡样芽胞杆菌污染奶源引起的食物中毒暴发事件的病原学特征,为查明暴发源头和临床治疗提供依据。  方法  对198例患儿进行流行病学调查,采集可疑奶制品和病例标本,进行菌株分离和鉴定。 分离到的蜡样芽胞杆菌菌株进行脉冲场凝胶电泳(PFGE)分子分型、全基因组测序以及毒力基因分析。 采用微量肉汤稀释法进行药物敏感性测定。  结果  流行病学调查显示198例患儿均有不同程度的腹痛、腹泻和发热等症状,符合食源性疾病暴发定义。 共分离到25株蜡样芽胞杆菌(5株来自奶制品,20株分离自病例标本)。 PFGE分型分析显示,13株病例标本菌株与5株奶源性菌株条带具有高度相似性。 25株蜡样芽胞杆菌对环丙沙星、万古霉素、四环素、氯霉素、庆大霉素和亚胺培南均敏感,但对氨苄西林、青霉素完全耐药。  结论  该起食物中毒暴发事件疑似由蜡样芽胞杆菌污染引起,应加大食品安全知识的宣传普及,提高食品安全意识,预防类似事件的发生。  相似文献   
4.
Obesogens are a subset of endocrine disruptor chemicals (EDCs) that cause obesity. The typical EDC 4-nonylphenol (4-NP) has been identified as an obesogen. However, the in vitro effects of 4-NP on adipogenesis remain unclear. In this study, 3T3-L1 preadipocytes and C3H/10T1/2 mesenchymal stem cells (MSCs) were used to investigate the influence of 4-NP on adipogenesis. The differentiation protocols for 3T3-L1 preadipocytes and C3H/10T1/2 MSCs took 8 and 12 days, respectively, beginning at Day 0. In differentiated 3T3-L1 preadipocytes, 20 μM 4-NP decreased cell viability on Days 4 and 8. Exposure to 4-NP inhibited triglyceride (TG) accumulation and adipogenic marker expression on Days 0–8, but the inhibitory effects were weaker on Days 2–8. The protein expression of pSTAT3 or STAT3 decreased on Days 0–8 and 2–8. Conversely, 4-NP promoted TG accumulation and the adipogenic marker expression in C3H/10T1/2 adipocytes. The opposing effects were attributed to physiological differences between the two cell lines. The 3T3-L1 preadipocytes are dependent on mitotic clonal expansion (MCE) to drive differentiation, while C3H/10T1/2MSCs and human preadipocytes are not. Additionally, 4-NP downregulated β-catenin expression in C3H/10T1/2 adipocytes. Accordingly, we hypothesized that 4-NP promotes adipogenesis. The role of the canonical Wnt pathway in the promotion of adipogenesis by 4-NP requires further validation. This study provides new insights into the mechanisms and appropriate risk management of 4-NP.  相似文献   
5.
目的 构建miRNA-mRNA调控网络,为探索精神分裂症的分子遗传学发病机制研究提供新的思路。方法 于2021年7月在GEO数据库下载精神分裂症外周血miRNA(GSE54578)和死后大脑扣带回mRNA(GSE145554)微阵列数据集,利用GEO2R获取差异表达的miRNA和mRNA,筛选具有靶向mRNA的差异表达miRNA并预测其上游潜在的转录因子;然后,将差异表达miRNA所靶向mRNA与GSE145554数据集所获取的差异表达mRNA取交集基因;最后,对交集基因实施GO和KEGG通路富集分析以揭示它们的生物学功能,构建交集基因PPI网络和miRNA-mRNA调控网络。结果 GSE54578共识别出8个上调且具有靶向mRNA的差异表达miRNA,差异表达miRNA共预测出转录因子10个;GSE145554识别出247个下调的差异表达mRNA,取交集基因后筛选出17个目标mRNA;GO分析显示,目标mRNA主要参与星形胶质细胞的分化与发育等,KEGG通路富集分析显示,目标mRNA主要参与Rap1和Ras信号传导通路等,PPI网络分析显示,mRNA(KRAS和CD28)可能是精神分裂症的关键基因。结论 基于GEO数据库并整合生物信息学不仅能识别精神分裂症的潜在易感基因,并有助于构建精神分裂症miRNA-mRNA调控网络。  相似文献   
6.
The application of traditional Chinese medicines (TCMs) has a history of more than 2000 years, which have the characteristics of multi-component, multi-target, and high safety. Post-infectious cough (PIC) is a respiratory disease with high incidence. It belongs to subacute cough and accounts for as much as 40%–50%. Cough is the main clinical manifestation of PIC. PIC seriously affects people's life quality because of complex etiology, long-term course of disease, treatment difficulties and other characteristics. Western medicines are based on the principle of symptomatic treatment, so they are often difficult to control PIC fundamentally. These factors could due to that PIC is prolonged and unable to heal repeatedly. TCMs have obvious advantages in treating PIC, with accurate curative effects, less side effects and adverse reactions and are effective in improving PIC-related symptoms and indicators, enhancing patients' life quality and reducing pain. TCMs, guided by holistic concept and syndrome differentiation, advocate determine treatment on the basis of pattern types, and have remarkable clinical treatment effects. As for TCMs etiology, pathogenesis and syndrome types of PIC, TCM scholars have not yet reached a unified standard. However, most of them think that wind pathogen can cause PIC alone, or it can be combined with other evils, which might be the main mechanism of PIC. This paper discusses the advantages and limitations of TCMs in PIC treatment from etiology, pathogenesis, distribution of syndrome types and treatment of TCMs. This article focuses on the treatment methods and pharmacodynamic material basis of wind pathogen, providing ideas in treating PIC of TCMs clinically and innovative drug development.  相似文献   
7.
Ye  Xiao  Liu  Xiao-Qian  Zhang  Dong  Feng  Wei-Hong  Liang  Yao-Hua  Li  Chun  Wang  Zhi-Min 《Journal of natural medicines》2022,76(4):774-795
Journal of Natural Medicines - The fruits of Gardenia jasminoides Ellis are an important herb medicine in Traditional Chinese Medicine (TCM) and have been used for thousands of years for clearing...  相似文献   
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下肢运动功能障碍是脑卒中患者最常见和最迫切需要解决的问题之一,即使早期、规范介入康复治疗,仍有许多患者在发病6个月后还不能恢复行走功能或遗留严重异常步态,对患者的日常活动和自理能力造成巨大影响,给社会和家庭带来沉重经济负担。下肢运动功能障碍的康复治疗技术包括神经调控、头针等以大脑为靶点的中枢干预技术,以及协同功能性电刺激(FES)、机器人辅助步态训练(RAGT)等以肢体为靶点的外周干预技术。虽然中枢干预与外周干预刺激靶点不同,但是治疗目的一致。为了提高治疗效果,有研究发现将有效的中枢干预技术与外周干预技术联合应用比单一中枢或外周治疗的效果更好。国内学者将这种模式称为"脑-肢协同调控治疗技术",该技术根据协同部位不同可分为脑-上肢协同治疗模式和脑-下肢协同治疗模式;根据协同顺序的不同,又可分为脑-肢体同步治疗模式和脑-肢体非同步治疗模式,其中非同步治疗模式又可分为先大脑刺激后肢体刺激模式和先肢体刺激后大脑刺激模式。目前,脑-肢协同调控治疗技术在临床中被普遍应用和研究。由于经颅直流电刺激(tDCS)治疗安全性高、设备携带方便、后延效应时间长等优势,被广泛与下肢康复治疗技术协同应用。但由于参与协同的下肢康复技术种类不同以及协同治疗顺序的不一致,tDCS协同下肢康复治疗的效果存在较大差异。本文就国内外近年来不同治疗参数的经颅直流电刺激协同不同的下肢康复治疗技术及不同脑-肢体协同治疗顺序,在脑卒中偏瘫下肢康复中的应用模式作一综述,并探讨影响协同治疗效果的因素及可能有效的协同治疗模式,旨在为脑卒中后下肢功能障碍的研究和治疗提供新思路。  相似文献   
10.
Purpose

Previous research has identified social support to be associated with risk of posttraumatic stress disorder (PTSD) symptoms among military personnel. While the lack of social support influences PTSD symptomatology, it is unknown how changes in perceived social support affect the PTSD symptom level in the aftermath of deployment. Furthermore, the influence of specific sources of social support from pre- to post-deployment on level of PTSD symptoms is unknown. We aim to examine how changes in perceived social support (overall and from specific sources) from pre- to 2.5 year post-deployment are associated with the level of post-deployment PTSD symptoms.

Methods

Danish army military personnel deployed to Afghanistan in 2009 and 2013 completed questionnaires at pre-deployment and at 2.5 year post-deployment measuring perceived social support and PTSD symptomatology and sample characteristics of the two cohorts. Data were analyzed using univariate and multivariate nominal logistic regression.

Results

Negative changes in perceived social support from pre- to post-deployment were associated with both moderate (OR 1.99, CI 1.51–2.57) and high levels (OR 2.71, CI 1.94–3.78) of PTSD symptoms 2.5 year post-deployment (adjusted analysis). Broadly, the same direction was found for specific sources of social support and level of PTSD symptoms. In the adjusted analyses, pre-deployment perceived social support and military rank moderated the associations.

Conclusions

Deterioration in perceived social support (overall and specific sources) from pre- to 2.5 year post-deployment increases the risk of an elevated level of PTSD symptoms 2.5 year post-deployment.

  相似文献   
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