Cancer cachexia

癌症恶病质
  • 文章类型: Journal Article
    超过50%的晚期癌症患者患有与癌症相关的恶病质(CC)-这是发病率和死亡率的主要原因。尽管乌干达缺乏关于CC诊断和管理的当地指南,美国临床肿瘤学会(ASCO),欧洲肿瘤医学学会(ESMO)和全球营养不良领导力倡议(GLIM)制定了CC筛查和管理指南.然而,乌干达肿瘤卫生专业人员对CC的知识水平和对现有指南的遵守情况尚不清楚.本研究旨在评估参与癌症患者护理的医疗保健专业人员(HCP)对CC诊断和管理的认识和知识水平,以及对ASCO/ESMO/GLIM关于CC指南的遵守情况。
    在第一阶段,使用ASCO/ESMO和GLIM关于CC诊断和管理的指南开发的自我管理的结构化问卷用于评估意识水平,以及来自三家医院的200名卫生专业人员在CC上的知识,并遵守ASCO/ESMO/GLIM关于CC相关核心沟通的指导方针,沟通障碍,临床医生沟通培训,讨论护理目标,治疗选择和满足服务不足人群的需求。将数据输入到使用STATA版本18.0软件分析的研究电子数据捕获软件中。
    CC诊断标准的总体客观正确知识得分为67.5%(n=135),然而,对于ASCO/ESMO/GLIM关于CC的指南的知晓率较低,为30%(n=60),只有21%(n=42)的HCP曾经评估过CC患者的生活质量.ASCO/ESMO/GLIM指南对CC患者营养干预的依从性在变量之间明显不同,对于特定的ASCO/ESMO/GLIM指南建议,从25.1%(n=50)到81%(n=162)不等。尽管遵守关于讨论护理目标的指导方针,预后,治疗选择和临终关怀在大多数变量中得分最高,大多数HCP在不治之症早期对患者临终偏好的讨论依从性较低(49.8%,n=99)。在遵守ASCO/ESMO/GLIM指南的情况下,三家医院中只有两个变量的平均得分之间存在统计学上的显着差异。
    这项研究表明,对CC诊断标准的总体客观正确知识不足,对ASCO/ESMO/GLIM关于CC的指南的认识水平要低得多,少数HCP曾经评估过CC患者的生活质量。对CC诊断和管理的质量改进干预措施应优先提高对CC的知识水平,诊断标准和患者-临床医生沟通,包括使用标准化工具(如ASCO/ESMO或GLIM指南)对患者临终关怀的讨论,使用多学科团队方法。
    UNASSIGNED: More than 50% of people with advanced cancer suffer from cancer-related cachexia (CC) - a major contributor to morbidity and mortality. Despite the lack of local guidelines on CC diagnosis and management in Uganda, the American Society of Clinical Oncology (ASCO), the European Society for Medical Oncology (ESMO) and the Global Leadership Initiative on Malnutrition (GLIM) developed guidelines on CC screening and management. However, the level of knowledge on CC and compliance with the available guidelines among Ugandan oncology health professionals is unknown. This study aimed to assess the level of awareness and knowledge of CC diagnosis and management and compliance with the ASCO/ESMO/GLIM guidelines on CC among healthcare professionals (HCPs) involved in the care of cancer patients.
    UNASSIGNED: In this phase one, a self-administered structured questionnaire developed using the ASCO/ESMO and GLIM guidelines on diagnosis and management of CC was used to assess the level of awareness, and knowledge of 200 health professionals from three hospital settings on CC, and compliance with the ASCO/ESMO/GLIM guidelines on CC related core communication, barriers to communication, clinician training in communication, discussing goals of care, treatment options and meeting the needs of the underserved populations. The data were entered into Research Electronic Data Capture software analysed using STATA version 18.0 software.
    UNASSIGNED: The overall objectively correct knowledge score of CC diagnosis criteria was 67.5% (n = 135), yet there was a much lower level of awareness about ASCO/ESMO/GLIM guidelines on CC at 30% (n = 60) and only 21% (n = 42) of the HCPs have ever assessed Quality of life of CC patients. The compliance with ASCO/ESMO/GLIM guidelines on nutritional interventions for patients with CC varied across the variables markedly, ranging from 25.1% (n = 50) to 81% (n = 162) for the specific ASCO/ESMO/GLIM guidelines\' recommendations. Whereas compliance with the guidelines on discussing goals of care, prognosis, treatment options and end-of-life care scored the highest in most variables, most HCPs exhibited low compliance with the discussion about patients\' end-of-life preferences early in the course of incurable illness (49.8%, n = 99). There were statistically significant differences between the mean scores of only two variables among the three hospitals in compliance with ASCO/ESMO/GLIM guidelines on the provision.
    UNASSIGNED: This study indicated that the overall objectively correct knowledge of CC diagnosis criteria was inadequate, with a much lower level of awareness about the ASCO/ESMO/GLIM guidelines on CC and a handful of the HCPs have ever assessed the quality of life of CC patients. Quality improvement interventions on CC diagnosis and management should prioritize improving the level of knowledge on CC, diagnostic criteria and patient-clinician communication, including discussion about patients\' end-of-life care using standardised tools such as ASCO/ESMO or GLIM guidelines on CC using a multidisciplinary team approach.
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  • 文章类型: Journal Article
    生酮饮食(KD)的特点是碳水化合物最少,中等蛋白质,和高脂肪摄入,导致酮症.它以其减肥效率而闻名,代谢健康改善,和各种治疗干预措施。KD增强葡萄糖和脂质代谢,降低甘油三酯和总胆固醇,同时增加高密度脂蛋白水平和缓解血脂异常。它显著影响脂肪组织激素,全身代谢的关键贡献者。棕色脂肪组织,对于产热和脂质燃烧至关重要,由于饮食因素,遇到修改的UCP1水平,包括KD.UCP1通过在ATP合成期间解耦电子传输而产生热量。白色脂肪组织的褐变升高白色和棕色脂肪组织中的UCP1水平,由KD鼓励的现象。酮氧化会耗尽克雷布斯循环中的中间体,需要回补物质,包括葡萄糖,糖原,或氨基酸,代谢效率。甲基化在脂肪形成和身体的饮食反应中是必不可少的,与体重减轻和酮症相关的几个基因的DNA甲基化。KD刺激FGF21,通过UCP1途径影响代谢稳定性。KD诱导肌肉质量减少,可能涉及抗脂解作用和减弱骨骼肌蛋白水解。此外,KD有助于神经保护,具有抗炎特性,改变表观遗传学。本文综述了KD在脂肪组织和主要代谢器官中的代谢作用和信号传导。
    The ketogenic diet (KD) is characterized by minimal carbohydrate, moderate protein, and high fat intake, leading to ketosis. It is recognized for its efficiency in weight loss, metabolic health improvement, and various therapeutic interventions. The KD enhances glucose and lipid metabolism, reducing triglycerides and total cholesterol while increasing high-density lipoprotein levels and alleviating dyslipidemia. It significantly influences adipose tissue hormones, key contributors to systemic metabolism. Brown adipose tissue, essential for thermogenesis and lipid combustion, encounters modified UCP1 levels due to dietary factors, including the KD. UCP1 generates heat by uncoupling electron transport during ATP synthesis. Browning of the white adipose tissue elevates UCP1 levels in both white and brown adipose tissues, a phenomenon encouraged by the KD. Ketone oxidation depletes intermediates in the Krebs cycle, requiring anaplerotic substances, including glucose, glycogen, or amino acids, for metabolic efficiency. Methylation is essential in adipogenesis and the body\'s dietary responses, with DNA methylation of several genes linked to weight loss and ketosis. The KD stimulates FGF21, influencing metabolic stability via the UCP1 pathways. The KD induces a reduction in muscle mass, potentially involving anti-lipolytic effects and attenuating proteolysis in skeletal muscles. Additionally, the KD contributes to neuroprotection, possesses anti-inflammatory properties, and alters epigenetics. This review encapsulates the metabolic effects and signaling induced by the KD in adipose tissue and major metabolic organs.
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  • 文章类型: Journal Article
    背景:由于食欲和蛋白质合成的增加,预计Anamorelin通过增加瘦体重(LBM)来改善癌症恶病质。然而,在现实世界的实践中,阿纳瑞林对癌症恶病质的影响尚不清楚.这项研究的目的是评估anamorelin的疗效和安全性,并确定anamorelin治疗疗效的预测因子。
    方法:我们回顾性分析了2021年5月至2022年8月期间接受化疗的癌症恶病质患者的数据。使用LBM评估anamorelin的疗效,对Anamorelin治疗的“12周持续有效反应”定义为LBM维持或增加12周。我们使用多变量逻辑模型,包括控制营养状况(CONUT)评分,研究了与Anamorelin治疗的“12周持续有效反应”相关的因素,对营养障碍的客观评估,和改良的格拉斯哥预后评分(mGPS),对癌症患者的恶病质状况进行评分。评估患者在开始阿纳瑞林治疗后与进食相关的主观生活质量(QOL)变化,我们使用问卷(QOL-ACD食欲相关项目:Q8,9,11)。根据不良事件通用术语标准(CTCAE)5.0版评价不良事件。
    结果:对40例患者的数据进行分析,23例患者对anamorelin表现出12周的持续有效反应(57.5%)。12周时,LBM显著增加1.63±3.73kg(平均值±SD)。多变量逻辑分析显示,CONUT得分较低与anamorelin治疗的“12周持续有效反应”显着相关(调整比值比:13.5,95%置信区间:2.2-84.2,P=0.004)。QOL评估显示,开始服用anamorelin后,食欲和进餐的趋势增加。5名患者(12.5%)在开始使用anamorelin后的12周内HbA1c升高超过1.0%。没有患者出现QT间期延长或3级或更高的肝转氨酶升高。
    结论:Anamorelin在接受化疗的癌性恶病质患者中可以维持或增加LBM,安全性可耐受。CONUT得分低,尽管符合癌症恶病质的标准,被建议作为阿纳瑞林疗效的预测因子,这表明CONUT评分较低的患者可能会从早期引入阿纳瑞林中获益。
    BACKGROUND: Anamorelin is expected to improve cancer cachexia by increasing lean body mass (LBM) due to increased appetite and protein synthesis. However, the effect of anamorelin on cancer cachexia in real-world practice is unclear. The purpose of this study was to evaluate the efficacy and safety of anamorelin and to identify predictors of efficacy on treatment with anamorelin.
    METHODS: We retrospectively analyzed data from patients with cancer cachexia treated with chemotherapy between May 2021 and August 2022. Efficacy of anamorelin was evaluated using LBM, with \"12-week sustained effective response\" to anamorelin treatment defined as maintenance or an increase in LBM for 12 weeks. We examined factors associated with \"12-week sustained effective response\" to anamorelin treatment using a multivariable logistic model that included controlling nutritional status (CONUT) score, an objective assessment of nutritional disorders, and the modified Glasgow prognostic score (mGPS), which scores the cachexia status of cancer patients. To assess patient subjective quality of life (QOL) changes related to eating after starting anamorelin treatment, we used a questionnaire (QOL-ACD appetite-related items: Q8, 9, 11). Adverse events were evaluated in accordance with the Common Terminology Criteria for Adverse Events (CTCAE) Version 5.0.
    RESULTS: On analysis of data from 40 patients, 23 patients showed a 12-week sustained effective response to anamorelin (57.5%). At 12 weeks, LBM significantly increased by 1.63 ± 3.73 kg (mean ± SD). Multivariable logistic analysis revealed that a low CONUT score was significantly associated with \"12-week sustained effective response\" to anamorelin treatment (adjusted odds ratio: 13.5, 95% confidence intervals: 2.2-84.2, P = 0.004). QOL assessment showed a trend toward increased appetite and enjoyment of meals after anamorelin initiation. Five patients (12.5%) had an increase in HbA1c of more than 1.0% during the 12 weeks after the start of anamorelin. No patient had QT interval prolongation or grade 3 or higher hepatic transaminase elevation.
    CONCLUSIONS: Anamorelin may maintain or increase LBM with tolerable safety in patients with cancer cachexia undergoing chemotherapy. A low CONUT score, despite meeting criteria for cancer cachexia, is suggested as a predictor for the efficacy of anamorelin, indicating that patients with a low CONUT score may benefit from early introduction of anamorelin.
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  • 文章类型: Journal Article
    癌症恶病质与转移性尿路上皮癌(mUC)患者的不良预后相关。这项研究的目的是评估恶病质指数(CXI),这是评估癌症恶病质状况的新指标,作为接受吉西他滨加顺铂(GC)化疗的mUC患者的预后指标。
    该研究包括55例mUC患者,他们在2008年至2022年间接受了GC化疗作为一线化疗。化疗开始时的CXI测定如下:CXI=(血清白蛋白X骨骼肌质量指数)/(中性粒细胞计数/淋巴细胞计数)。根据中位数CXI值(高CXI和低CXI)将患者分为两组。我们使用Kaplan-Meier曲线和多变量Cox比例风险回归模型来评估CXI和总生存期(OS)之间的关联。
    在GC化疗开始时,在患者特征方面没有发现显著差异。CXI低组[10.0个月(95%置信区间(CI)=5.1-12.8)]的中位OS明显短于CXI高组[22.3个月(95%CI=13.6-NA),p<0.05]。多因素分析显示低CXI是预后不良的预测因子[风险比(HR)=2.25,95%CI=1.12-4.52,p<0.05]。
    CXI可能作为接受一线GC化疗的mUC患者的预后指标。
    UNASSIGNED: Cancer cachexia is associated with poor prognosis in patients with metastatic urothelial carcinoma (mUC). The objective of the study was to assess the cachexia index (CXI), which is a new indicator assessing the status of cancer cachexia, as a prognostic indicator for mUC patients treated with gemcitabine plus cisplatin (GC) chemotherapy.
    UNASSIGNED: The study included 55 patients with mUC who underwent GC chemotherapy between 2008 and 2022 as first-line chemotherapy. The CXI at the start of chemotherapy was determined as follows: CXI=(serum albumin × skeletal muscle mass index)/ (neutrophil count/lymphocyte count). Patients were categorized into two groups based on a median CXI value (CXI-high and CXI low). We used Kaplan-Meier curves and multivariate Cox proportional hazards regression models to assess the association between the CXI and overall survival (OS).
    UNASSIGNED: At the start of GC chemotherapy, significant differences were not found in patients\' characteristics. The median OS was significantly shorter in the CXI-low group [10.0 months (95% confidence interval (CI)=5.1-12.8)] than in the CXI-high group [22.3 months (95% CI=13.6-NA), p<0.05]. Multivariate analysis revealed that low CXI was a predictor of a poor prognosis [hazard ratio (HR)=2.25, 95% CI=1.12-4.52, p<0.05].
    UNASSIGNED: CXI might be useful as a prognostic indicator for patients with mUC undergoing first-line GC chemotherapy.
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  • 文章类型: Journal Article
    癌症恶病质是一种与晚期癌症相关的多因素综合征,可导致死亡。恶病质的特征在于体重减轻和肌肉萎缩。骨骼肌线粒体活性氧(ROS)的增加是恶病质患者肌肉质量损失的一个促成因素。接种Lewis肺癌(LLC)细胞的小鼠体重减轻,肌肉质量,并具有较低的肌肉沉默蛋白-1(sirt1)表达。烟酸(NA)是烟酰胺二核苷酸(NAD)的前体,在恶病质肌肉中耗尽,是sirt1的直接激活剂。接种LLC细胞后,小鼠失去了体重和肌肉重量,并表现出骨骼肌sirt1表达降低。用LLC条件培养基(LCM)处理的C2C12肌管具有较低的肌管直径。我们用LCM处理C2C12肌管24小时,有或没有NA处理24小时。用NA处理的C2C12肌管保持肌管直径,sirt1表达式,线粒体超氧化物含量较低。然后我们使用sirt1特异性小分子激活剂SRT1720来增加sirt1活性。用SRT1720处理的C2C12肌管保持肌管直径,防止sirt1表达的丢失,并减弱线粒体超氧化物的产生。我们的数据提供了证据,表明NA可能通过维持sirt1表达和减少线粒体超氧化物产生而有益于对抗癌症恶病质。
    Cancer cachexia is a multifactorial syndrome associated with advanced cancer that contributes to mortality. Cachexia is characterized by loss of body weight and muscle atrophy. Increased skeletal muscle mitochondrial reactive oxygen species (ROS) is a contributing factor to loss of muscle mass in cachectic patients. Mice inoculated with Lewis lung carcinoma (LLC) cells lose weight, muscle mass, and have lower muscle sirtuin-1 (sirt1) expression. Nicotinic acid (NA) is a precursor to nicotinamide dinucleotide (NAD+) which is exhausted in cachectic muscle and is a direct activator of sirt1. Mice lost body and muscle weight and exhibited reduced skeletal muscle sirt1 expression after inoculation with LLC cells. C2C12 myotubes treated with LLC-conditioned media (LCM) had lower myotube diameter. We treated C2C12 myotubes with LCM for 24 h with or without NA for 24 h. C2C12 myotubes treated with NA maintained myotube diameter, sirt1 expression, and had lower mitochondrial superoxide. We then used a sirt1-specific small molecule activator SRT1720 to increase sirt1 activity. C2C12 myotubes treated with SRT1720 maintained myotube diameter, prevented loss of sirt1 expression, and attenuated mitochondrial superoxide production. Our data provides evidence that NA may be beneficial in combating cancer cachexia by maintaining sirt1 expression and decreasing mitochondrial superoxide production.
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  • 文章类型: Journal Article
    目的:晚期胰腺癌和胆道癌(aPBC)患者经常遭受高症状负担。运动可以减少治疗副作用并改善患者相关结果(PROMs)。然而,来自前瞻性研究的关于在高级环境中的可行性和有效性的证据很少.这个前景的主要目标,随机对照研究旨在评估运动(ET)在aPBC患者中的可行性和效果。
    方法:一线治疗以外的aPBC患者根据最小化程序进行随机分组,并按性别分层,年龄,以及过去六个月的体重减轻。干预组(IG)每周完成3个训练单元,共8周(1x监督力量会议,2x个性化家庭会议)。对照组(CG)接受了有关癌症期间身体活动的建议。
    结果:41例患者(IV期胰腺癌或胆道癌)纳入试验期间未发生与运动相关的不良事件。IG中7个物理域中的5个物理功能显着增加。比较IG和CG在8周(t2)显示显着差异有利于IG在腿部按压(p=0.001),台式压力机(p=0.011),静坐(p=0.001)和紧缩(0.006)。在t2时,便秘显示出对IG有利的显着差异(p=0.033)。在研究期间,与CG下降相比,IG的生活质量稳定/增加。在整个/8周内,疲劳显著降低IG(p=0.028)。
    结论:对于接受进一步行治疗的aPBC患者,运动是安全可行的。身体功能显著改善,生活质量提高。德国临床试验注册ID:DRKS00021179;注册日期15.05.2020。
    OBJECTIVE: Patients with advanced pancreatic and biliary tract cancer (aPBC) frequently suffer from high symptom burden. Exercise can reduce treatment side effects and improve patient-related outcomes (PROMs). However, evidence from prospective studies regarding feasibility and efficacy in advanced settings are sparse. The primary aim of this prospective, randomized-controlled study was to evaluate the feasibility and effects of exercise (ET) in patients with aPBC.
    METHODS: Patients with aPBC beyond first-line therapy were randomized according to the minimization procedure with stratification by gender, age, and loss of body weight in the past six months. The intervention group (IG) completed 3 training units/week for 8 weeks (1x supervised strength sessions, 2x individualized home-based sessions). Control group (CG) received recommendations on physical activity during cancer.
    RESULTS: 41 patients (stage IV pancreatic or biliary tract cancer) were included no adverse events related to exercise occurred during the trial. Physical function increased significantly in IG in 5 out of 7 physical domains. Comparison of IG and CG at 8 weeks (t2) showed significant differences in favour of IG in leg press (p=0.001), bench press (p=0.011), sit-to-stand (p=0.001) and crunch (0.006). Constipation revealed a significant difference in favour of IG at t2 (p=0.033). Quality of life stabilized/increased in IG during the study period compared to a decrease in CG. Throughout/Over the 8 weeks, fatigue notably reduced in the IG (p=0.028).
    CONCLUSIONS: Exercise is safe and feasible in patients with aPBC undergoing further line therapy. Significant improvements in physical functioning and increased quality of life were achieved. German Clinical Trials Register ID: DRKS00021179; Registration date 15.05.2020.
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  • 文章类型: Journal Article
    癌症恶病质是一种多因素疾病,导致约20%的癌症患者死亡。它有可能导致体重减轻,肌肉质量减少,和脂肪组织的流失,显著降低生活质量。目前,目前还没有批准的癌症恶病质药物。这里,我们已经探讨了在体外和体内环境下,油菜素(BSN)对癌症恶病质的可能影响。分化后,将C2C12和3T3-L1细胞与结肠直肠癌细胞条件培养基或BSN一起孵育。对于临床前研究,小鼠注射HT-29细胞,然后腹膜内注射BSN,通过蛋白质印迹和苏木精和伊红染色评估肌肉和脂肪组织。BSN通过下调肌肉RING-finger蛋白-1和Atrogin-1的水平有效抑制肌肉萎缩,同时还增加恶病质诱导的C2C12肌管中肌球蛋白重链的表达。BSN诱导脂肪生成可防止恶病质诱导的3T3-L1脂肪细胞中的脂肪细胞萎缩。我们还注意到,BSN破坏了COX-2与信号转导子和转录激活因子3(STAT3)启动子之间的相互作用,导致STAT3激活下调。此外,发现BSN抑制小鼠体重减轻并表现出抗恶病质作用。总的来说,我们的观察结果表明,BSN可以通过多种机制减轻癌症恶病质.
    Cancer cachexia is a multifactorial condition that contributes to the death of about 20% of cancer patients. It has the potential to cause weight loss, reduction in muscle mass, and loss of fat tissue, significantly lowering the quality of life. Currently, there are no approved drugs for cancer cachexia. Here, we have explored the possible impact of brassinin (BSN) on cancer cachexia under in vitro and in vivo settings. After differentiation, C2C12 and 3T3-L1 cells were incubated with colorectal carcinoma cells conditioned media or BSN. For preclinical studies, mice were injected with HT-29 cells followed by intraperitoneal administration of BSN, and muscle and adipose tissues were evaluated by Western blotting and hematoxylin and eosin staining. BSN effectively suppressed muscle atrophy by down-regulating the levels of Muscle RING-finger protein-1 and Atrogin-1, while also increasing the expression of myosin heavy chain in cachexia-induced-C2C12 myotubes. The induction of adipogenesis by BSN prevented adipocyte atrophy in cachexia-induced 3T3-L1 adipocytes. We also noted that BSN disrupted the interaction between COX-2 and signaling transducer and activator of transcription 3 (STAT3) promoter, leading to down-regulation of STAT3 activation. Moreover, it was found that BSN inhibited weight loss in mice and demonstrated anti-cachexic effects. Overall, our observations indicate that BSN can attenuate cancer cachexia through diverse mechanisms.
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  • 文章类型: Journal Article
    癌症恶病质(CC)是一种使人衰弱的综合征,影响50-80%的癌症患者,不同癌症类型的发病率不同,显著降低了他们的生活质量。这种多因素综合征的特征是肌肉和脂肪减少,全身性炎症,和代谢失衡。细胞外囊泡(EV),包括外泌体和微泡,在CC的发展中起着至关重要的作用。这些囊泡,由肿瘤环境中的癌细胞和其他细胞产生,通过转移蛋白质促进细胞间的通讯,脂质,和核酸。对PubMed等数据库的文献进行全面回顾,Scopus,和WebofScience揭示了对地层的见解,释放,和电动汽车在CC中的吸收,强调它们作为诊断和预后生物标志物的潜力。这篇综述还探讨了针对电动汽车的治疗策略,其中包括修改其版本和内容,利用它们进行药物输送,基因改变它们的内容,并抑制关键的恶病质途径。了解电动汽车在CC中的作用为诊断和治疗方法开辟了新的途径,可能减轻综合征对患者生存和生活质量的影响。
    Cancer cachexia (CC) is a debilitating syndrome that affects 50-80% of cancer patients, varying in incidence by cancer type and significantly diminishing their quality of life. This multifactorial syndrome is characterized by muscle and fat loss, systemic inflammation, and metabolic imbalance. Extracellular vesicles (EVs), including exosomes and microvesicles, play a crucial role in the progression of CC. These vesicles, produced by cancer cells and others within the tumor environment, facilitate intercellular communication by transferring proteins, lipids, and nucleic acids. A comprehensive review of the literature from databases such as PubMed, Scopus, and Web of Science reveals insights into the formation, release, and uptake of EVs in CC, underscoring their potential as diagnostic and prognostic biomarkers. The review also explores therapeutic strategies targeting EVs, which include modifying their release and content, utilizing them for drug delivery, genetically altering their contents, and inhibiting key cachexia pathways. Understanding the role of EVs in CC opens new avenues for diagnostic and therapeutic approaches, potentially mitigating the syndrome\'s impact on patient survival and quality of life.
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  • 文章类型: Journal Article
    癌症恶病质是一种多方面的综合征,影响晚期癌症患者。它在癌症患者中引起许多病理变化,如炎症和代谢功能障碍,这进一步降低了他们的生活质量。不幸的是,癌症恶病质也会增加受影响个体的死亡风险,使其成为癌症研究和治疗的重要领域。正在临床前和临床模型中测试几种潜在的营养疗法在改善癌症患者肌肉代谢方面的功效。尽管结果很有希望,尚未在临床实践中验证特殊的营养疗法.多项研究提供了通过增加氨基酸或蛋白质摄入量来增加肌肉蛋白质合成的益处的证据。越来越多的证据表明,运动可以通过调节蛋白质合成来减少肌肉萎缩。因此,蛋白质摄入和运动的结合可能更有效地改善癌症恶病质。这篇综述概述了在有和没有运动疗法的情况下使用氨基酸改善恶病质肌肉代谢的临床前和临床方法。
    Cancer cachexia is a multifaceted syndrome that impacts individuals with advanced cancer. It causes numerous pathological changes in cancer patients, such as inflammation and metabolic dysfunction, which further diminish their quality of life. Unfortunately, cancer cachexia also increases the risk of mortality in affected individuals, making it an important area of focus for cancer research and treatment. Several potential nutritional therapies are being tested in preclinical and clinical models for their efficacy in improving muscle metabolism in cancer patients. Despite promising results, no special nutritional therapies have yet been validated in clinical practice. Multiple studies provide evidence of the benefits of increasing muscle protein synthesis through an increased intake of amino acids or protein. There is also increasing evidence that exercise can reduce muscle atrophy by modulating protein synthesis. Therefore, the combination of protein intake and exercise may be more effective in improving cancer cachexia. This review provides an overview of the preclinical and clinical approaches for the use of amino acids with and without exercise therapy to improve muscle metabolism in cachexia.
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  • 文章类型: Journal Article
    背景:在接受放射治疗的头颈癌(HNC)患者中经常观察到营养缺乏。发现microRNAs(miRNAs)在整个炎症反应相关基因的调节过程中在代谢紊乱的发展中起重要作用。本研究旨在探讨喉癌(LC)放疗(RT)患者治疗前miR-5682表达与营养缺陷指标的相关性。
    方法:在56名男性LC个体的血浆样品中分析miR-5682的表达。使用人体测量和实验室参数评估LC患者的营养状况,生物电阻抗分析(BIA)和临床问卷。
    结果:miR-5682的高表达与BMI值显着降低相关,脂肪量,在RT疗程的选定时期,无脂质量和血浆白蛋白。miR-5682使我们能够以100%的灵敏度和69.6%的特异性(AUC=0.820;p<0.0001)将同时具有SGA-C和低白蛋白水平的患者与其他LC患者区分开。所研究的miRNA的较高表达与LC患者的中位总生存期(OS)较短显著相关(HR=2.26;p=0.008)。
    结论:miR-5682表达的分析证明了在选择患有作为基于RT的治疗的结果的营养缺乏的LC患者中的潜在临床效用。
    Nutritional deficiencies are frequently observed in patients with head and neck cancer (HNC) undergoing radiation therapy. microRNAs (miRNAs) were found to play an important role in the development of metabolic disorders throughout regulation of genes involved in inflammatory responses. This study aimed to explore the correlation between pre-treatment miR-5682 expression and parameters reflecting nutritional deficits in laryngeal cancer (LC) patients subjected to radiotherapy (RT).
    Expression of miR-5682 was analyzed in plasma samples of 56 male LC individuals. Nutritional status of LC patients was assessed using anthropometric and laboratory parameters, bioelectrical impedance analysis (BIA) and clinical questionnaires.
    A high expression of miR-5682 was associated with significantly lower values of BMI, fat mass, fat-free mass and plasma albumin at selected periods of RT course. miR-5682 allowed us to distinguish between patients classified with both SGA-C and low albumin level from other LC patients with 100% sensitivity and 69.6% specificity (AUC = 0.820; p < 0.0001). Higher expression of studied miRNA was significantly associated with shorter median overall survival (OS) in LC patients (HR = 2.26; p = 0.008).
    analysis of miR-5682 expression demonstrates a potential clinical utility in selection of LC patients suffering from nutritional deficiencies developing as a consequence of RT-based therapy.
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