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Le devoir de vigilance européen : instrument de promotion d’un modèle de gouvernance vertueux 欧洲的警惕义务:促进良性治理模式的工具
4区 医学 Q Medicine Pub Date : 2023-08-07 DOI: 10.3917/red.005.0053
Bernard Cazeneuve, Alexandre Mennucci
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引用次数: 0
Assessment of Positive Airway Pressure Treatment Adherence and Sleep Quality in Sleep Apnea Patients During COVID-19 Pandemic: Multi-center Cross-sectional Study Results 新冠肺炎大流行期间睡眠呼吸暂停患者气道正压治疗依从性和睡眠质量的评估:多中心交叉研究结果
IF 0.4 4区 医学 Q Medicine Pub Date : 2023-07-10 DOI: 10.32592/ircmj.2023.25.3.1123
C. Ozdilekcan, H. Fırat, A. Demir, M. Yuceege, B. Akçay
Background: Patients with obstructive sleep apnea (OSA), related to their disease consequences and treatment modalities, are physically and mentally vulnerable during the outbreak.Objectives: To investigate the association between pandemic-related changes and positive airway pressure (PAP) adherence and sleep quality in OSA patients.Methods: This was a multi-center cross-sectional study, and the necessary data were collected prospectively. A total of 221 patients were included in the study, who were invited from four different centers from June 1 - December 1, 2020. Pittsburgh Sleep Quality Index (PSQI) was administered to evaluate sleep quality. Information on demographics positive airway pressure (PAP) device use, Coronavirus disease (COVID-19) a questionnaire collected related changes. Patients >18 years with a diagnosis of OSA and prescribed PAP treatment before the pandemic period were included in the study. Lack of cooperation with the questionnaires and incompliant with PAP treatment for longer than one year were the exclusion criteria.Results: Of the 221 participants, 79.2% were men. The mean apnea-hypopnea index was obtained at 40.8±24.3. A positive COVID-19 test was reported in nine cases, and three patients had hospitalization. During the pandemic, 102 (46.2%) subjects were retired, 26 (11.8%) lost their jobs, and 34 (15.3%) reported home office work or on-call or on leave. Poor sleep quality was found in 54 (24.4%) individuals. It was also reported that poor sleep quality was more common in those who reported mask use difficulty (38.7% vs. 18.9%; P=0.004) and increased or decreased PAP use (increased, decreased, no change in PAP use: 45.5%, 36.0%, 19.4%, respectively; P=0.01). The good sleep quality group had higher PAP use than the poor sleep quality group (6.2±1.5 vs. 5.3±2.4 night/week; P=0.002; 6.2±1.5 vs. 5.5±2.2 hour/night; P=0.01). Conclusions: Pandemic period had several negative effects on sleep apnea patients regarding sleep quality and social lives which also influenced PAP adherence in OSA patients. Most patients did not change their regular PAP use attitudes during this period. Similar to the pre-COVID-19 disease period, PAP adherence and compliance positively influenced sleep quality; people who were "good sleepers" were the ones who were the "good PAP device users".
背景:阻塞性睡眠呼吸暂停(OSA)患者与其疾病后果和治疗方式有关,在疫情期间身体和精神都很脆弱。目的:研究OSA患者的流行病相关变化与气道正压通气(PAP)依从性和睡眠质量之间的关系。方法:这是一项多中心横断面研究,前瞻性地收集必要的数据。共有221名患者参与了这项研究,他们于2020年6月1日至12月1日从四个不同的中心接受了邀请。匹兹堡睡眠质量指数(PSQI)用于评估睡眠质量。关于人口统计学信息的气道正压通气(PAP)设备使用、冠状病毒疾病(新冠肺炎)问卷收集的相关变化。本研究纳入了在疫情期间之前诊断为OSA并接受PAP治疗的18岁以上患者。不配合问卷调查和不接受PAP治疗超过一年是排除标准。结果:221名参与者中,男性占79.2%。平均呼吸暂停低通气指数为40.8±24.3。报告有9例新冠肺炎检测呈阳性,3名患者住院治疗。在疫情期间,102名(46.2%)受试者退休,26名(11.8%)失业,34名(15.3%)报告在家办公或随叫随到或休假。54人(24.4%)的睡眠质量较差。另据报道,睡眠质量差在那些报告口罩使用困难(38.7%对18.9%;P=0.004)和PAP使用增加或减少(PAP使用的增加、减少、无变化:分别为45.5%、36.0%、19.4%;P=0.01)的人中更常见。睡眠质量好组的PAP使用量高于睡眠质量差组(6.2±1.5 vs.5.3±2.4夜/周;P=0.002;6.2±1.5 vs 5.5±2.2小时/夜;P=0.01)。结论:流行期对睡眠呼吸暂停患者的睡眠质量和社交生活产生了一些负面影响,也影响了OSA患者的PAP依从性。在这段时间里,大多数患者没有改变他们常规使用PAP的态度。与COVID-19疾病前时期类似,PAP依从性和依从性对睡眠质量有积极影响;“睡眠良好”的人就是“良好的PAP设备用户”。
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引用次数: 0
Clinicopathological Properties of Mesenchymal Tumors of the Stomach and Surgical Treatment Outcomes 胃间充质瘤的临床病理特征及手术治疗效果
IF 0.4 4区 医学 Q Medicine Pub Date : 2023-06-05 DOI: 10.32592/ircmj.2023.25.6.2504
Background: Mesenchymal tumors are part of a heterogeneous group of neoplasms.Objectives: The present study investigated the clinicopathological properties and surgical outcomes of patients with gastric mesenchymal tumors who underwent surgical treatment.Methods: This study included all cases who underwent surgical treatment for mesenchymal tumors in Başakşehir Çam and Sakura City Hospital, Turkey, between August 2020 and August 2022. The demographic data and clinical properties of the patients, operative details, postoperative assessments, pathological specifications of the tumor, and immunohistochemical analysis results were evaluated.Results: The study included 14 patients, 57% of whom were male. Patients had a mean age of 59.7±9.3 years. The most frequent American Society of Anesthesiologists (ASA) score was ASA 2 in 10 (72%) patients, and the mean hemoglobin level was 12±1.9 g/dl. All patients underwent wedge resection, 5 (35.7%) by a minimally invasive method. The mean duration of operation was 98.9±29.4 min. There were no intraoperative complications, conversions, or postoperative mortalities, and the mean duration of hospital stay was 6.2±3.2 days. One patient made an unplanned re-admission to the hospital due to inadequate oral intake. As an adjuvant treatment, three patients were prescribed imatinib. The tumor location was most frequently the corpus in 5 (36%) patients, and the mean tumor diameter was 62±35.2 mm. Stromal tumors were the most common histological type in 10 (72%) patients, and the other histological types were leiomyoma in 3 (21%) and pancreatoblastoma in 1 (7%) patient. The median and maximum Ki-67 index were 3 and 80, respectively, and the median and maximum mitotic index were 3 and 18, respectively. The number of dissected lymph nodes was nine in one patient and five in another. The surgical margin was positive in one patient, and no patient had a perforated tumor.Conclusion: Among the different types of mesenchymal tumors of the gastrointestinal system, which are rare, stromal tumors are the most common histological type. Gastric mesenchymal tumors can be safely treated with wedge resection, an approach that is associated with low postoperative morbidity and mortality.
背景:间充质肿瘤是异质性肿瘤的一部分。目的:探讨手术治疗胃间充质瘤的临床病理特点和手术效果。方法:本研究纳入了2020年8月至2022年8月期间在土耳其bauriak ehir Çam和Sakura市医院接受间充质肿瘤手术治疗的所有病例。对患者的人口学资料和临床特征、手术细节、术后评估、肿瘤病理特征和免疫组织化学分析结果进行评估。结果:纳入14例患者,男性占57%。患者平均年龄59.7±9.3岁。10例(72%)患者最常见的ASA评分为ASA 2,平均血红蛋白水平为12±1.9 g/dl。所有患者均行楔形切除术,其中5例(35.7%)采用微创方法。平均手术时间为98.9±29.4 min,无术中并发症、转诊及术后死亡,平均住院时间为6.2±3.2 d。一名患者因口服摄入不足而意外再次入院。作为辅助治疗,3例患者服用伊马替尼。5例(36%)患者肿瘤多发于体部,平均肿瘤直径为62±35.2 mm。10例(72%)患者以间质瘤为最常见的组织学类型,其他组织学类型为平滑肌瘤3例(21%)和胰腺母细胞瘤1例(7%)。Ki-67指数中位数和最大值分别为3和80,有丝分裂指数中位数和最大值分别为3和18。一名患者有9个淋巴结,另一名患者有5个淋巴结。一例手术切缘阳性,无一例肿瘤穿孔。结论:在胃肠道间质肿瘤的不同类型中,间质肿瘤是最常见的组织学类型。胃间充质肿瘤可以安全的采用楔形切除术治疗,这种方法术后发病率和死亡率低。
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引用次数: 0
Cost of Blood Products in Iran: A Case Study of the Shiraz Blood Transfusion Organization Using Activity-based Costing 伊朗血液制品成本:设拉子输血组织使用作业成本法的案例研究
IF 0.4 4区 医学 Q Medicine Pub Date : 2023-06-05 DOI: 10.32592/ircmj.2023.25.6.2472
Sulmaz Ghahramani, L. Zarei, L. Kasraian, Maryam Mollaie, Hengameh Kasraei, K. Lankarani
Background: Although blood is donated rather than purchased, collecting, storing, and testing it for viral markers is expensive. During the Cost of Blood Consensus Conference (COBCON), activity-based costing (ABC) was proposed as a standard way to figure out the cost of preparing a unit of blood.Objectives: The ABC can be used by any organization that pays for blood or blood products. It was used to determine how much each unit of allogeneic blood costs in Iran, considering the limited blood sources and the importance of cost evaluation studies.Methods: This cross-sectional, descriptive-analytical study was conducted at Shiraz Blood Transfusion Organization in 2020-2021 (Shiraz, Iran). We used the ABC method to determine how much each unit of allogeneic blood costs in Iran. In this study, activity centers were divided into high-level, intermediate, and final activity centers. The resources of each activity center were made up of human resources, consumables, buildings, equipment, and energy.Results: Direct and indirect costs of producing blood were separately investigated in the studied sub-units. The final estimated cost of preparing one blood unit was almost 13 million IRR (≈308 USD). According to our findings, indirect costs comprised a significant portion (86.45%) of the cost of producing a unit of blood, while direct costs accounted for only 13.55%.Conclusion: As evidenced by the obtained results, the cost of one blood unit was far more than the national average estimated by the Iran Blood Transfusion Organization. There is a need for additional research on the cost of other blood products and indirect cost reduction strategies.
背景:尽管血液是捐献而不是购买的,但采集、储存和检测病毒标志物的费用很高。在血液成本共识会议(COBCON)期间,作业成本法(ABC)被提议作为计算制备单位血液成本的标准方法。目的:ABC可供任何支付血液或血液制品费用的组织使用。考虑到有限的血液来源和成本评估研究的重要性,它被用来确定伊朗每单位异基因血液的成本。方法:这项横断面描述性分析研究于2020-2021年在设拉子输血组织(伊朗设拉子)进行。我们使用ABC方法来确定伊朗每单位异基因血液的成本。在本研究中,活动中心分为高级、中级和最终活动中心。每个活动中心的资源由人力资源、消耗品、建筑、设备和能源组成。结果:在研究的子单元中,分别调查了生产血液的直接和间接成本。准备一个血液单位的最终估计成本几乎为1300万IRR(≈308美元)。根据我们的研究结果,间接成本占生产单位血液成本的很大一部分(86.45%),而直接成本仅占13.55%。结论:从所获得的结果来看,一单位血液的成本远高于伊朗输血组织估计的全国平均水平。需要对其他血液制品的成本和间接成本降低策略进行额外的研究。
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引用次数: 0
Identifying the Challenges of Intensive Care unit Caregiving in the Face of COVID-19 Pandemic: A Qualitative Study 面对COVID-19大流行,确定重症监护病房护理的挑战:一项定性研究
IF 0.4 4区 医学 Q Medicine Pub Date : 2023-06-02 DOI: 10.32592/ircmj.2023.25.6.2726
Background: The COVID-19 pandemic created an unprecedented challenge for intensive care units (ICUs) compared to other clinical wards. In addition, it caused stressful conditions due to the increased mortality rates in these wards.Objectives: Since the identification of these challenges can serve as a road map for managers in future planning against crises, the present study aimed to identify the challenges of ICU caregiving during the COVID-19 pandemic.Methods: This qualitative study used conventional content analysis and was conducted using unstructured deep interviews with an open question and several co-constructive questions in 2023. A total of 23 ward heads, head nurses, nurses of ICU wards, nursing managers, and supervisors of six teaching hospitals affiliated with Isfahan University of Medical Sciences and Yazd Universities of Medical Sciences were included in the study through a purposive sampling method. Data analysis was performed with MAXQDA10 using qualitative content analysis with a conventional approach.Results: The challenges of ICUs in the COVID-19 pandemic were identified and categorized into six main categories and 14 sub-categories. The main categories included: inefficient management of resources, weaknesses in organization, challenges to laws and regulations/policies, structural challenges, weaknesses in educational processes, and mental challenges.Conclusion: The findings of this study showed that it is possible to provide quality services to patients by identifying the challenges affecting the management and provision of nursing services and taking appropriate measures to improve the quality of nursing services in the intended wards.
背景:与其他临床病房相比,2019冠状病毒病大流行给重症监护病房(icu)带来了前所未有的挑战。此外,由于这些病房的死亡率增加,它造成了紧张的情况。目标:由于确定这些挑战可以作为管理者未来应对危机规划的路线图,本研究旨在确定COVID-19大流行期间ICU护理面临的挑战。方法:本定性研究采用传统的内容分析,并在2023年采用非结构化深度访谈进行,访谈包含一个开放问题和几个共同建设性问题。采用目的抽样法,选取伊斯法罕医科大学和亚兹德医科大学附属6所教学医院的病室主任、护士长、ICU病房护士、护理管理人员和主管共23人。使用MAXQDA10进行数据分析,采用常规方法进行定性内容分析。结果:明确了icu在COVID-19大流行中面临的挑战,并将其分为6大类和14小类。主要类别包括:资源管理效率低下、组织的弱点、对法律法规/政策的挑战、结构性挑战、教育过程的弱点和心理挑战。结论:本研究结果表明,通过识别影响护理服务管理和提供的挑战,并采取适当措施提高目标病房的护理服务质量,可以为患者提供优质服务。
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引用次数: 0
Application of Nursing Intervention Based on the Information-motivation-behavioral Model in Rehabilitation after Vocal Cord Polypectomy 基于信息动机行为模型的护理干预在声带息肉切除术后康复中的应用
IF 0.4 4区 医学 Q Medicine Pub Date : 2023-05-24 DOI: 10.32592/ircmj.2023.25.7.2451
Background: Vocal cord polyps are common benign lesions that cause voice disorders, particularly hoarseness, which can interfere with daily communication.Objectives: The present study aimed to determine the effect of applying a nursing intervention based on the information-motivation-behavioral (IMB) model on rehabilitation after vocal cord polypectomy.Methods: A total of 76 patients who underwent vocal cord polyp resection in Wuhu Second People's Hospital between January 2019 and September 2021 were selected by convenience sampling as the study participants. A random number table was used to assign the patients to two groups, an intervention group and a control group (n=38 in each group). Patients in the control group were given routine postoperative nursing, whereas those in the intervention group received an IMB-based nursing intervention based on that of the control group. The data collected regarding self-care ability, vocal cord recovery, and voice disorder severity of the two groups after surgery were compared in January and February.Results: The Exercise of Self-Care Agency scale scores of the intervention group were higher than those of the control group both one and two months after surgery, and the difference was statistically significant (97.1±26.1 vs. 84.6±19.8, 103.3±28.4 vs. 85.6±20.0, P< 0.05), indicating the superior self-care ability of the intervention group. The Voice Handicap Index scores of the intervention group were lower than those of the control group both one and two months after the surgery, and the difference was statistically significant (35.8±9.2 vs. 39.8±13.9, 24.6±6.2 vs. 29.7±7.3, P<0.05), indicating that voice disorder severity was lower in the intervention group than in the control group. Moreover, the effective rates (recovery and improvement) of the intervention group were higher than those of the control group one and two months after the surgery.Conclusion: As evidenced by the obtained results, nursing intervention based on the IMB model for patients who undergo vocal cord polyp resection can effectively improve self-care ability, reduce the severity of voice disorders, and promote the recovery of vocal cords.
背景:声带息肉是一种常见的良性病变,会导致声音障碍,尤其是声音嘶哑,这会干扰日常交流。目的:本研究旨在确定基于信息动机行为(IMB)模型的护理干预对声带息肉切除术后康复的影响。方法:采用方便抽样的方法,选取2019年1月至2021年9月在芜湖市第二人民医院接受声带息肉切除术的76例患者作为研究对象。使用随机数表将患者分为两组,干预组和对照组(每组n=38)。对照组的患者接受了常规的术后护理,而干预组的患者在对照组的基础上接受了基于IMB的护理干预。比较了1月和2月两组患者术后的生活自理能力、声带恢复和嗓音障碍严重程度。结果:干预组在术后1个月和2个月的自我护理机构运动量表得分均高于对照组,差异有统计学意义(97.1±26.1 vs.84.6±19.8,103.3±28.4 vs.85.6±20.0,P<0.05),表明干预组具有较高的自理能力。术后1个月和2个月,干预组的嗓音障碍指数得分均低于对照组,差异有统计学意义(35.8±9.2 vs.39.8±13.9,24.6±6.2 vs.29.7±7.3,P<0.05),表明干预组的语音障碍严重程度低于对照组。此外,术后1个月和2个月,干预组的有效率(恢复和改善)高于对照组。结论:研究结果表明,基于IMB模式的护理干预对声带息肉切除术后患者的生活自理能力有明显的提高,降低了嗓音障碍的严重程度,促进了声带的恢复。
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引用次数: 0
Nutrition Management and Recommendations for Improving the Outcomes of Coronavirus Disease 2019-A Narrative Review 营养管理和改善冠状病毒病结局的建议2019-叙述综述
IF 0.4 4区 医学 Q Medicine Pub Date : 2023-05-18 DOI: 10.32592/ircmj.2023.25.6.1794
Context: Nutritional management of Covid-19 (Coronavirus Disease 2019) patients can serve as a tool to strengthen the patient's immune system and provide sufficient physiological resources to maintain vital functions during the fight between the virus and the body.This review aimed to highlight available recommendations for the nutritional management of Covid-19 patients based on previous treatments used in similar diseases.Evidence Acquisition: For this narrative review, a comprehensive search was performed in three databases, including PubMed, Scopus, and Web of Science databases from January 2020 to 7th December 2021, in the English language. The articles that focused on nutrition, diet, food, immunity, and coronavirus were searched. The titles and abstracts of all imported articles were screened. Only systematic and narrative reviews, commentary, opinion, prospective, and original articles, which related to the study question, were included. Studies which investigated the role of nutrition in the prevention of Covid-19 were excluded.Conclusion: Due to the unique nature of Covid-19 and the role of nutrition in immunity and prognosis of Covid-19, the nutritional needs of patients with Covid-19 differ from others. Accordingly, the provision of these specific nutrient requirements and paying attention to the use of effective food supplements when adjusting the diet plan of patients with Covid-19 can be effective in improving patients' conditions. Therefore, more studies in this field can be helpful.
背景:Covid-19(冠状病毒病2019)患者的营养管理可以作为增强患者免疫系统的工具,并在病毒与身体的斗争中提供足够的生理资源,以维持重要功能。本综述旨在强调基于先前用于类似疾病的治疗方法的Covid-19患者营养管理的现有建议。证据获取:对于这篇叙述性综述,从2020年1月至2021年12月7日,在PubMed、Scopus和Web of Science数据库三个数据库中进行了全面的英语检索。检索了有关营养、饮食、食品、免疫和冠状病毒的文章。对所有进口物品的标题和摘要进行了筛选。仅包括与研究问题相关的系统和叙述性评论、评论、观点、前瞻性和原创文章。研究营养在预防Covid-19中的作用的研究被排除在外。结论:由于Covid-19的独特性以及营养在Covid-19免疫和预后中的作用,Covid-19患者的营养需求与其他患者不同。因此,在调整新冠肺炎患者的饮食计划时,提供这些特定的营养需求,并注意使用有效的食物补充剂,可以有效改善患者的病情。因此,在这一领域进行更多的研究是有帮助的。
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引用次数: 0
Spotlight on the Expanding Role of DANCR in Tumorigenesis and Tumor Progression 关注DANCR在肿瘤发生和肿瘤进展中的扩展作用
IF 0.4 4区 医学 Q Medicine Pub Date : 2023-05-18 DOI: 10.32592/ircmj.2023.25.6.2381
Context: Long non-coding RNA (lncRNA) is a novel set of non-coding RNAs (ncRNA), over 200 nucleotides in length, accounting for the regulation of genes and chromosome structure. There are a few articles, mostly focusing on changes in the expression profile of DANCR. However, this review tried to collect documents to discuss the molecular mechanisms of this lncRNA in different cellular signaling pathways, considering microRNAs, to obtain a better understanding of its mode of action.Evidence Acquisition: Differentiation antagonizing non-protein coding RNA (DANCR) is a cancer-associated lncRNA whose dysregulation, mostly upregulation, has been reported in almost all cancers, particularly in stages of invasion, migration, and progression. The regulatory mechanism of DANCR is mostly working as competitive endogenous RNAs (ceRNAs), leading to the hypothesis that lncRNA DANCR has oncogenic functions in malignancies. LncRNA DANCR harbors a number of MicroRNA Response Elements (MREs) for various microRNAs involved in different pathways, which are responsible for turning the situation toward supremacy for the dissemination of cancerous cells and ultimately metastasis, such as PI3K/Akt, TGF-β, Wnt, JAK-STAT, EMT, and DNA damages. In fact, lncRNA DANCR could potentially sequester microRNAs from their targeted mRNAs, which share the same MREs as DANCR.Conclusion: This review article provides proper evidence, of why the aberrant expression of DANCR pathophysiologically turns the circumstances toward supremacy for the progression, migration, and invasion of cancerous cells, and proposes this lncRNA as a potent and extremely promising prognostic marker for the early detection of tumor progression and metastasis, as well as a therapeutic target for controlling the progression of several human malignancies.
背景:长非编码RNA(lncRNA)是一组新的非编码RNA,长度超过200个核苷酸,负责基因和染色体结构的调节。有几篇文章,主要关注DANCR表达谱的变化。然而,本综述试图收集文献,讨论这种lncRNA在不同细胞信号通路中的分子机制,考虑微小RNA,以更好地了解其作用模式。证据获取:分化拮抗非蛋白编码RNA(DANCR)是一种癌症相关的lncRNA,其失调,主要是上调,在几乎所有的癌症中都有报道,尤其是在侵袭、迁移和进展阶段。DANCR的调节机制主要作为竞争性内源性RNA(ceRNA)发挥作用,这导致了lncRNA DANCR在恶性肿瘤中具有致癌功能的假设。LncRNA-DANCR含有许多参与不同途径的各种微小RNA的微小RNA反应元件(MRE),这些元件负责将情况转变为癌细胞传播和最终转移的优势,如PI3K/Akt、TGF-β、Wnt、JAK-STAT、EMT和DNA损伤。事实上,lncRNA-DANCR可以潜在地从其靶向信使核糖核酸中分离微小RNA,这些信使核糖核酸与DANCR具有相同的MRE。结论:这篇综述文章提供了适当的证据,说明为什么DANCR的异常表达在病理生理学上使癌细胞的进展、迁移和侵袭的环境变得至高无上,并提出这种lncRNA作为一种有效且极具前景的预后标志物,用于早期检测肿瘤进展和转移,以及控制几种人类恶性肿瘤进展的治疗靶点。
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引用次数: 0
Neurofibromatosis Type 1-Associated Multiple Malignant Peripheral Nerve Sheet Tumors: A Case Report and Literature Review 1型神经纤维瘤病相关多发性恶性周围神经片瘤1例报告并文献复习
IF 0.4 4区 医学 Q Medicine Pub Date : 2023-05-14 DOI: 10.32592/ircmj.2023.25.5.2585
Background: Neurofibromatosis type 1 (NF-1) is a genetic disorder characterized by café-au-lait macules, freckling, Lisch nodules, and neurofibromas. NF-1 patients have a special predisposition to tumorigenesis due to genetic mutations, affecting the tumor regulator systems. Malignant Peripheral Nerve Sheet Tumor (MPNST) is a highly aggressive soft tissue tumor that is usually associated with NF-1.Case presentation: A 32-year-old woman was presented complaining of weakness, severe fatigue, weight loss, peripheral paresthesia, progressive generalized myalgia, bone pain, and a mass sensation in her right thigh since three months ago. She was a known case of NF-1 since childhood. After clinical and radiological evaluation, multiple masses were detected in the retroperitoneal cavity adjacent to the left kidney, uterus, and right thigh. Finally, the patient was planned for surgical excision of two masses with subsequent chemotherapy. Both excised masses were confirmed as MPNSTs by histopathological examination.Conclusion: Regarding the predisposition of NF-1 patients to tumorigenesis and the high prevalence of peripheral nerve tumors among these patients, any masses changing their character should raise suspicion for malignancy. One of the serious malignant lesions is MPNST. The primary treatment plan for these malignant lesions is surgical excision with subsequent chemotherapy or radiotherapy based on individual characteristics.
背景:1型神经纤维瘤病(NF-1)是一种遗传性疾病,其特征为卡萨梅-au-lait斑疹、雀斑、利施结节和神经纤维瘤。NF-1患者由于基因突变,影响肿瘤调节系统,具有特殊的肿瘤发生易感性。恶性周围神经片瘤(MPNST)是一种高度侵袭性的软组织肿瘤,通常与NF-1相关。病例介绍:一名32岁女性,自三个月前以来,主诉虚弱、严重疲劳、体重减轻、外周感觉异常、进行性全身肌痛、骨痛和右大腿肿块感。她从小就是已知的NF-1病例。经临床及影像学检查,在左肾、子宫及右大腿附近的腹膜后腔内发现多发肿块。最后,患者计划手术切除两个肿块并进行化疗。两例切除肿块经组织病理学检查证实为mpnst。结论:NF-1患者易发生肿瘤,周围神经肿瘤发生率高,任何改变其特征的肿块都应引起对恶性肿瘤的怀疑。MPNST是一种严重的恶性病变。这些恶性病变的主要治疗方案是手术切除,然后根据个体特征进行化疗或放疗。
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引用次数: 0
Facilitation of Temozolomide Resistance of Glioblastoma by Long Noncoding RNA DLK1-35 长链非编码RNA DLK1-35促进胶质母细胞瘤对替莫唑胺的耐药
IF 0.4 4区 医学 Q Medicine Pub Date : 2023-05-13 DOI: 10.32592/ircmj.2023.25.5.2468
Yuhui Li, Xuan Zheng, Dan Li, Mingyang Sun, Zhuo Wang, Jingwu Li, Yufeng Li
Background: Long noncoding RNAs played critical roles in glioblastoma development.Objectives: This study aimed to examine the impacts of lncRNA DLK1-35 on glioblastoma cells and mice.Methods: Methyl Thiazolyl Tetrazolium (MTT) was applied for examining the viabilities of U87 and U251 cells, as well as IC50 values of temozolomide (TMZ). LncRNA DLK1-35 expressions were detected using RT-qPCR. Proliferation and apoptosis of TMZ-resistant U251 (U251 TR) cells were evaluated using colony formation and flow cytometry, respectively. Western blot was applied to analyze O6-methylguanine-DNA methyltransferase (MGMT) protein expressions. The xenograft model was used for detecting the weight and volume of tumors in mice.Results: TMZ treatment suppressed the viabilities of glioblastoma cells dose-dependently. Moreover, TMZ-resistant glioblastoma cells had higher IC50 values. lncRNA DLK1-35 was upregulated in TMZ-resistant cells while the suppression of lncRNA DLK1-35 caused low proliferation and a higher apoptosis rate. Moreover, MGMT was also inhibited by lncRNA DLK1-35 downregulation. Additionally, the weight and volume of tumors in mice were also inhibited with the knockdown of lncRNA DLK1-35.Conclusion: Knockdown of lncRNA DLK1-35 inhibited MGMT to decrease the TMZ resistance in vitro and in vivo in glioblastoma.
背景:长链非编码RNA在胶质母细胞瘤的发展中起着关键作用。目的:本研究旨在检测lncRNA DLK1-35对胶质母细胞瘤细胞和小鼠的影响。方法:应用甲基噻唑四唑(MTT)法检测U87和U251细胞的存活率以及替莫唑胺(TMZ)的IC50值。用RT-qPCR检测LncRNA DLK1-35的表达。分别使用集落形成和流式细胞术评估TMZ抗性U251(U251TR)细胞的增殖和凋亡。应用蛋白质印迹法分析O6甲基鸟嘌呤DNA甲基转移酶(MGMT)蛋白的表达。异种移植物模型用于检测小鼠肿瘤的重量和体积。结果:TMZ对胶质母细胞瘤细胞存活率的抑制作用呈剂量依赖性。此外,TMZ抗性胶质母细胞瘤细胞具有较高的IC50值。lncRNA DLK1-35在TMZ抗性细胞中上调,而lncRNA DL K1-35的抑制导致低增殖和较高的凋亡率。此外,MGMT也受到lncRNA DLK1-35下调的抑制。此外,敲低lncRNA DLK1-35也能抑制小鼠肿瘤的重量和体积。
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引用次数: 0
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Iranian Red Crescent Medical Journal
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