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Associations of dietary and erythrocyte membrane fatty acids with overall survival in oral cancer: A prospective cohort study with mechanistic exploration 口腔癌患者饮食和红细胞膜脂肪酸与总生存率的关系:一项机制探索的前瞻性队列研究
IF 7.4 2区 医学 Q1 NUTRITION & DIETETICS Pub Date : 2026-01-01 Epub Date: 2025-12-02 DOI: 10.1016/j.clnu.2025.12.001
Baochang He , Xixi Dong , Yichen Lin , Jianli Lin , Yu Qiu , Lisong Lin , Bin Shi , Jing Wang , Fa Chen

Background & Aims

Evidence suggests fatty acid metabolism may influence cancer progression, yet their role in oral cancer prognosis remains unclear. This study investigated associations between dietary fatty acid intake, erythrocyte membrane fatty acid composition, and overall survival in patients with oral cancer, and explored potential underlying mechanisms through network pharmacology and molecular docking analyses.

Methods

This prospective cohort study recruited 908 newly diagnosed oral cancer patients from October 2011 to June 2024. Dietary fatty acid intake was assessed using a validated food frequency questionnaire. Erythrocyte membrane fatty acid profiles were measured using gas chromatography. Patients were followed until February 2025, with overall survival as the primary outcome. Cox proportional hazards models were used to evaluate hazard ratios (HRs) and 95 % confidence intervals (CIs) for associations between fatty acid levels and overall survival in oral cancer. Composite indices (dietary fatty acid index [DFAI] and erythrocyte fatty acid index [EFAI]) were constructed using LASSO regression to assess combined effects. Network pharmacology and molecular docking were employed to investigate potential mechanisms.

Results

In multi-adjusted Cox regression models, higher dietary intake of linolenic acid (C18:3), eicosatrienoic acid (C20:3), and docosahexaenoic acid (C22:6) were associated with reduced mortality risk (highest vs. lowest tertile: HR = 0.54, 95 % CI: 0.36–0.82; HR = 0.65, 95 % CI: 0.44–0.95; HR = 0.62, 95 % CI: 0.42–0.91, respectively; all P-trend<0.05). Among erythrocyte membrane fatty acids, significant protective associations were observed for very long-chain saturated fatty acids behenic acid (C22:0) and tricosanoic acid (C23:0), with 48 % and 56 % lower mortality risks in the highest tertile (all P for trend <0.05). Similar protective effects were found for omega-3 polyunsaturated fatty acids including α-linolenic acid (C18:3 n-3), docosapentaenoic acid (C22:5 n-3), and docosahexaenoic acid (C22:6 n-3). Composite fatty acid indices showed that DFAI and EFAI were associated with 59 % and 85 % mortality reduction, respectively (both P < 0.001). Network pharmacology identified interleukin-6 (IL-6) as a key target in the fatty acid-oral cancer survival pathway. Molecular docking revealed favorable binding affinities between all six significant fatty acids and IL-6 (binding energies: −1.83 to −5.08 kcal/mol).

Conclusion

Higher dietary intake and erythrocyte membrane levels of specific polyunsaturated fatty acids and very long-chain saturated fatty acids are significantly associated with improved overall survival in oral cancer patients. These protective effects may be mediated through IL-6-related inflammatory pathways.
背景:有证据表明脂肪酸代谢可能影响癌症进展,但其在口腔癌预后中的作用尚不清楚。本研究通过网络药理学和分子对接分析,探讨口腔癌患者膳食脂肪酸摄入量、红细胞膜脂肪酸组成与总生存期的关系,并探讨其潜在机制。方法本前瞻性队列研究从2011年10月至2024年6月招募908例新诊断的口腔癌患者。使用有效的食物频率问卷评估膳食脂肪酸摄入量。用气相色谱法测定红细胞膜脂肪酸谱。患者随访至2025年2月,以总生存率为主要终点。使用Cox比例风险模型评估口腔癌患者脂肪酸水平与总生存期之间的风险比(hr)和95%置信区间(CIs)。采用LASSO回归法构建膳食脂肪酸指数[DFAI]和红细胞脂肪酸指数[EFAI]复合指标,评价其综合效应。利用网络药理学和分子对接技术探讨其潜在机制。结果在多因素校正Cox回归模型中,较高的膳食摄入亚麻酸(C18:3)、二十碳三烯酸(C20:3)和二十二碳六烯酸(C22:6)与降低死亡风险相关(最高比最低比值:HR = 0.54, 95% CI: 0.36 ~ 0.82; HR = 0.65, 95% CI: 0.44 ~ 0.95; HR = 0.62, 95% CI: 0.42 ~ 0.91; p趋势均为0.05)。在红细胞膜脂肪酸中,超长链饱和脂肪酸白脱酸(C22:0)和三糖酸(C23:0)具有显著的保护作用,最高分位数的死亡率分别降低48%和56%(趋势P均为0.05)。omega-3多不饱和脂肪酸包括α-亚麻酸(C18:3 n-3)、二十二碳五烯酸(C22:5 n-3)和二十二碳六烯酸(C22:6 n-3)也有类似的保护作用。复合脂肪酸指数显示,DFAI和EFAI分别与死亡率降低59%和85%相关(P均为0.001)。网络药理学发现白细胞介素-6 (IL-6)是脂肪酸-口腔癌生存通路的关键靶点。分子对接表明,所有6种重要脂肪酸与IL-6具有良好的结合亲和力(结合能:−1.83 ~−5.08 kcal/mol)。结论提高口腔癌患者饮食中特定多不饱和脂肪酸和甚长链饱和脂肪酸的摄入量和红细胞膜水平与提高患者的总生存期有显著关系。这些保护作用可能通过il -6相关的炎症途径介导。
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引用次数: 0
Exploring potential predictors of low muscle mass and muscle loss in adults with cancer: A scoping review 探讨成人癌症患者低肌肉量和肌肉损失的潜在预测因素:一项范围综述
IF 7.4 2区 医学 Q1 NUTRITION & DIETETICS Pub Date : 2026-01-01 Epub Date: 2025-12-01 DOI: 10.1016/j.clnu.2025.11.016
Annie R. Curtis , Carla M. Prado , Liliana Orellana , Robin M. Daly , Judy Bauer , Linda Denehy , Lara Edbrooke , Brenton J. Baguley , Laura Alston , Nicholas Hardcastle , Jenelle Loeliger , Louise Moodie , Sharad Sharma , Nicole Kiss

Background and Aims

Early identification of cancer-related muscle loss is essential to enable timely interventions and mitigate adverse outcomes, including mortality. This scoping review aimed to identify routinely assessed clinical measures associated with low muscle mass or muscle loss to inform future global screening and assessment.

Methods

Medline Complete, CINAHL Complete and Embase databases were screened from January 2000 to October 2024. Eligible studies investigated factors associated with cancer-related muscle loss, included adults undergoing or previously treated for cancer, and assessed or estimated muscle mass.

Results

The search identified 22,270 studies, of which 292 were included. Most involved patients with upper and/or lower gastrointestinal cancers (50 %), undergoing surgery (44 %) or chemotherapy (27 %). Two-thirds (65 %) assessed muscle mass using computed tomography (CT) at the third lumbar vertebra. Other methods included CT-defined muscle mass of single muscles (e.g., psoas) (15 %), bioelectrical impedance analysis or spectroscopy (12 %), dual-energy x-ray absorptiometry (DXA) (7 %) or other (3 %). As the benchmark for muscle mass assessment in oncology, results focused on CT-defined muscle mass, with comparison to other methods. Twenty factors were identified. Thirteen showed a consistent association in unadjusted and/or adjusted analysis: age, body mass index (BMI), performance status, muscle strength, physical function, arm and leg circumference, body weight, body fat, weight loss, fatigue, energy or protein intake, and physical inactivity.

Conclusions

This review identified 13 factors consistently associated with CT-defined muscle loss which may help identify patients with cancer who are at risk and require further assessment and timely referral for evidence-based nutrition and exercise interventions.
背景和目的早期识别癌症相关肌肉损失对于及时干预和减轻不良后果(包括死亡率)至关重要。本综述旨在确定常规评估的与低肌肉量或肌肉损失相关的临床指标,为未来的全球筛查和评估提供信息。方法对2000年1月~ 2024年10月的medline Complete、CINAHL Complete和Embase数据库进行筛选。符合条件的研究调查了与癌症相关的肌肉损失相关的因素,包括正在接受或以前接受过癌症治疗的成年人,并评估或估计了肌肉质量。结果共纳入22270项研究,其中292项被纳入。大多数患者为上消化道和/或下消化道癌症(50%),接受手术(44%)或化疗(27%)。三分之二(65%)的患者在第三腰椎使用计算机断层扫描(CT)评估肌肉质量。其他方法包括ct定义的单个肌肉(如腰肌)肌肉质量(15%),生物电阻抗分析或光谱(12%),双能x射线吸收仪(DXA)(7%)或其他(3%)。作为肿瘤肌肉质量评估的基准,结果集中在ct定义的肌肉质量,并与其他方法进行比较。确定了20个因素。13项在未调整和/或调整分析中显示一致的关联:年龄、体重指数(BMI)、表现状态、肌肉力量、身体功能、手臂和腿围、体重、体脂、体重减轻、疲劳、能量或蛋白质摄入以及缺乏身体活动。本综述确定了13个与ct定义的肌肉损失一致相关的因素,这可能有助于识别癌症患者的风险,需要进一步评估并及时转诊以证据为基础的营养和运动干预。
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引用次数: 0
Cachexia phenotype in community-dwelling, middle-aged and older adults and its impacts on intrinsic capacity and mortality: A pooled analysis of three cohorts 社区居民、中老年人的恶病质表型及其对内在能力和死亡率的影响:三个队列的汇总分析
IF 7.4 2区 医学 Q1 NUTRITION & DIETETICS Pub Date : 2026-01-01 Epub Date: 2025-11-21 DOI: 10.1016/j.clnu.2025.11.011
Liang-Kung Chen , Chi-Yun Wu , Wei-Ju Lee , Li-Ning Peng , Pi-Shan Hsu , Fei-Yuan Hsiao
<div><h3>Background and aims</h3><div>Cachexia, which is a complex metabolic disorder that is characterized by weight loss, muscle atrophy, and inflammation, is commonly associated with chronic diseases. However, the occurrence of cachexia among community-dwelling, middle-aged and older adults remains underexplored. This study aimed to assess the associations among cachexia, intrinsic capacity (IC) impairment, and mortality in adults aged 50 years and older.</div></div><div><h3>Methods</h3><div>We pooled data from three longitudinal cohort studies, which included 3112 individuals aged 50 years and older. The cachexia phenotype was defined using two algorithms suggested by the Asian Working Group for Cachexia (AWGC), even in the absence of specific index diseases. For Algorithm 1, patients were identified as having cachexia when they presented with weight loss or low body mass index (BMI) combined with one of the following: anorexia, decreased grip strength, or elevated C-reactive protein (CRP) levels. For Algorithm 2, the identification of cachexia required elevated CRP levels, along with weight loss or low BMI, combined with either anorexia or decreased grip strength. Importantly, the presence of a specific index disease was not necessary to define the cachexia phenotype using these criteria. Instead, we screened for the following index diseases as comorbid conditions: malignancy, congestive heart failure, chronic pulmonary disease, chronic kidney disease, severe liver disease, rheumatic or immune diseases, and acquired immunodeficiency syndrome (AIDS). IC was evaluated using the World Health Organization’s ICOPE framework (Step 1 screening; Step 2 in-depth assessment), which includes six domains: locomotor, vitality, vision, hearing, cognition, and psychological capacity. Logistic regression was used to assess the association between cachexia and IC impairment, and Cox proportional hazard models were used to examine the effect of cachexia on all-cause mortality.</div></div><div><h3>Results</h3><div>Among 3112 participants (median age 68.8 years, 43.7 % male) in the three cohorts, 5.4 % of participants were identified as having the cachexia phenotype using Algorithm 1, whereas only 0.4 % met the criteria for Algorithm 2. Notably, only 22 % of the participants with the cachexia phenotype (Algorithm 1) had at least one of the screened index diseases compared with 12 % in the non-cachexia group (<em>p</em> < 0.001). These findings demonstrate that the cachexia phenotype can be identified even in the absence of specific index diseases. The cachexia phenotype was significantly associated with impairments in multiple IC domains, including vitality (Step 1: aOR 8.44 [95 % CI 5.15–13.83], <em>p</em> < 0.001; Step 2: aOR 15.89 [10.72–23.56], <em>p</em> < 0.001), cognition (Step 1: aOR 1.75 [1.17–2.62], <em>p</em> = 0.007), and psychological capacity (Step 2: aOR 2.56 [1.39–4.73], <em>p</em> = 0.003). Individuals with the cachexia phenotype had a
背景和目的苦胆病是一种复杂的代谢紊乱,以体重减轻、肌肉萎缩和炎症为特征,通常与慢性疾病相关。然而,恶病质在社区居民、中老年人中的发生情况仍未得到充分研究。本研究旨在评估50岁及以上成人恶病质、内在能力(IC)损伤和死亡率之间的关系。方法:我们汇集了三项纵向队列研究的数据,其中包括3112名年龄在50岁及以上的个体。使用亚洲恶病质工作组(AWGC)提出的两种算法定义恶病质表型,即使在没有特定指数疾病的情况下。对于算法1,当患者出现体重减轻或低体重指数(BMI)并伴有以下情况之一时,患者被确定为患有恶病质:厌食症、握力下降或c反应蛋白(CRP)水平升高。对于算法2,识别恶病质需要CRP水平升高,同时体重减轻或低BMI,并伴有厌食症或握力下降。重要的是,使用这些标准来定义恶病质表型并不需要特定指数疾病的存在。相反,我们筛选了以下指标疾病作为合并症:恶性肿瘤,充血性心力衰竭,慢性肺病,慢性肾病,严重肝病,风湿病或免疫疾病,以及获得性免疫缺陷综合征(艾滋病)。使用世界卫生组织的ICOPE框架(第1步筛查;第2步深入评估)对IC进行评估,其中包括六个领域:运动、活力、视觉、听觉、认知和心理能力。采用Logistic回归评估恶病质与IC损伤之间的关系,采用Cox比例风险模型检验恶病质对全因死亡率的影响。结果在三个队列的3112名参与者(中位年龄68.8岁,43.7%为男性)中,使用算法1确定5.4%的参与者具有恶病质表型,而只有0.4%的参与者符合算法2的标准。值得注意的是,只有22%的具有恶病质表型(算法1)的参与者至少有一种筛查的指标疾病,而非恶病质组的这一比例为12% (p < 0.001)。这些发现表明,即使在没有特定指数疾病的情况下,恶病质表型也可以被识别。恶病质表型与多个IC领域的损伤显著相关,包括活力(步骤1:aOR 8.44 [95% CI 5.15-13.83], p < 0.001;步骤2:aOR 15.89 [10.72-23.56], p < 0.001)、认知(步骤1:aOR 1.75 [1.17-2.62], p = 0.007)和心理能力(步骤2:aOR 2.56 [1.39-4.73], p = 0.003)。校正混杂因素后,恶病质表型个体的死亡风险显著高于非恶病质组(aHR 1.77 [95% CI 1.15-2.73], p = 0.010)。结论在没有特定指标疾病的情况下,恶病质表型与中老年人IC损伤和死亡率增加有关。早期识别和有针对性的干预对于减轻恶病质表型患者的功能衰退和提高生存率至关重要。
{"title":"Cachexia phenotype in community-dwelling, middle-aged and older adults and its impacts on intrinsic capacity and mortality: A pooled analysis of three cohorts","authors":"Liang-Kung Chen ,&nbsp;Chi-Yun Wu ,&nbsp;Wei-Ju Lee ,&nbsp;Li-Ning Peng ,&nbsp;Pi-Shan Hsu ,&nbsp;Fei-Yuan Hsiao","doi":"10.1016/j.clnu.2025.11.011","DOIUrl":"10.1016/j.clnu.2025.11.011","url":null,"abstract":"&lt;div&gt;&lt;h3&gt;Background and aims&lt;/h3&gt;&lt;div&gt;Cachexia, which is a complex metabolic disorder that is characterized by weight loss, muscle atrophy, and inflammation, is commonly associated with chronic diseases. However, the occurrence of cachexia among community-dwelling, middle-aged and older adults remains underexplored. This study aimed to assess the associations among cachexia, intrinsic capacity (IC) impairment, and mortality in adults aged 50 years and older.&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Methods&lt;/h3&gt;&lt;div&gt;We pooled data from three longitudinal cohort studies, which included 3112 individuals aged 50 years and older. The cachexia phenotype was defined using two algorithms suggested by the Asian Working Group for Cachexia (AWGC), even in the absence of specific index diseases. For Algorithm 1, patients were identified as having cachexia when they presented with weight loss or low body mass index (BMI) combined with one of the following: anorexia, decreased grip strength, or elevated C-reactive protein (CRP) levels. For Algorithm 2, the identification of cachexia required elevated CRP levels, along with weight loss or low BMI, combined with either anorexia or decreased grip strength. Importantly, the presence of a specific index disease was not necessary to define the cachexia phenotype using these criteria. Instead, we screened for the following index diseases as comorbid conditions: malignancy, congestive heart failure, chronic pulmonary disease, chronic kidney disease, severe liver disease, rheumatic or immune diseases, and acquired immunodeficiency syndrome (AIDS). IC was evaluated using the World Health Organization’s ICOPE framework (Step 1 screening; Step 2 in-depth assessment), which includes six domains: locomotor, vitality, vision, hearing, cognition, and psychological capacity. Logistic regression was used to assess the association between cachexia and IC impairment, and Cox proportional hazard models were used to examine the effect of cachexia on all-cause mortality.&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Results&lt;/h3&gt;&lt;div&gt;Among 3112 participants (median age 68.8 years, 43.7 % male) in the three cohorts, 5.4 % of participants were identified as having the cachexia phenotype using Algorithm 1, whereas only 0.4 % met the criteria for Algorithm 2. Notably, only 22 % of the participants with the cachexia phenotype (Algorithm 1) had at least one of the screened index diseases compared with 12 % in the non-cachexia group (&lt;em&gt;p&lt;/em&gt; &lt; 0.001). These findings demonstrate that the cachexia phenotype can be identified even in the absence of specific index diseases. The cachexia phenotype was significantly associated with impairments in multiple IC domains, including vitality (Step 1: aOR 8.44 [95 % CI 5.15–13.83], &lt;em&gt;p&lt;/em&gt; &lt; 0.001; Step 2: aOR 15.89 [10.72–23.56], &lt;em&gt;p&lt;/em&gt; &lt; 0.001), cognition (Step 1: aOR 1.75 [1.17–2.62], &lt;em&gt;p&lt;/em&gt; = 0.007), and psychological capacity (Step 2: aOR 2.56 [1.39–4.73], &lt;em&gt;p&lt;/em&gt; = 0.003). Individuals with the cachexia phenotype had a","PeriodicalId":10517,"journal":{"name":"Clinical nutrition","volume":"56 ","pages":"Article 106526"},"PeriodicalIF":7.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145838345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Brain-gut interaction for holistic regulation: Transcutaneous auricular vagus nerve stimulation in modulating glucose and lipid metabolic disorders 脑-肠整体调节的相互作用:经皮耳迷走神经刺激调节葡萄糖和脂质代谢紊乱
IF 7.4 2区 医学 Q1 NUTRITION & DIETETICS Pub Date : 2026-01-01 Epub Date: 2025-12-08 DOI: 10.1016/j.clnu.2025.12.003
Ningyi Zou , Peijuan Zhou , Qing Zhou , Jizheng Ma , Shuo Feng , Peijing Rong , Shaoyuan Li
Dysregulation of glucose and lipid metabolism is a systemic disorder involving intricate interactions between the central nervous system, which governs stress and emotional regulation, and peripheral organs such as the gastrointestinal tract, liver, and pancreas. As a key component of the autonomic nervous system, the vagus nerve plays a pivotal role in regulating metabolic homeostasis through its widespread distribution and bidirectional communication along the gut-brain axis. Transcutaneous auricular vagus nerve stimulation (taVNS) has emerged as a promising non-pharmacological therapy for metabolic disorders, modulating autonomic function via brain-gut coordination to reduce food intake and enhance energy expenditure, thereby alleviating obesity, type 2 diabetes, and related conditions. However, the dynamic mechanisms by which taVNS maintains homeostatic balance through the gut-brain axis, as well as its novel targets, mediators, and pathways, remain elusive. Based on the concept of “brain-gut interaction for holistic regulation”, this review explores the potential mechanisms of taVNS in ameliorating glucose and lipid metabolic disorders, offering new perspectives and strategies for clinical intervention.
糖脂代谢失调是一种系统性疾病,涉及控制应激和情绪调节的中枢神经系统与胃肠道、肝脏和胰腺等外周器官之间复杂的相互作用。迷走神经作为自主神经系统的重要组成部分,通过其广泛的分布和沿肠-脑轴的双向交流,在调节代谢稳态中起着关键作用。经皮耳迷走神经刺激(taVNS)已成为一种很有前途的非药物治疗代谢紊乱的方法,通过脑-肠协调调节自主神经功能,减少食物摄入,增加能量消耗,从而减轻肥胖,2型糖尿病和相关疾病。然而,taVNS通过肠-脑轴维持稳态平衡的动态机制,以及它的新靶点、介质和途径仍然是难以捉摸的。本文基于“脑-肠相互作用整体调节”的概念,探讨taVNS改善糖脂代谢紊乱的潜在机制,为临床干预提供新的视角和策略。
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引用次数: 0
Integrating downstream mediators of Omega-3 fatty acids into enteral nutrition for improved patient care: An expert panel consensus 将Omega-3脂肪酸的下游介质整合到肠内营养中以改善患者护理:专家小组共识
IF 7.4 2区 医学 Q1 NUTRITION & DIETETICS Pub Date : 2026-01-01 Epub Date: 2025-11-22 DOI: 10.1016/j.clnu.2025.11.014
Robert Martindale , Manpreet S. Mundi , Dan Waitzberg , Elisabeth De Waele , Marialaura Scarcella , Michele Umbrello , Philip C. Calder , Jesmond Dalli , Zudin Puthucheary , Arthur R.H. van Zanten
Acute inflammation is a crucial biological response necessary for host defense and tissue repair, but unresolved inflammation can contribute to adverse outcomes across critical illness, cardiovascular disease, neurodegeneration, and cancer. Emerging evidence emphasizes that the resolution of inflammation is an active biosynthetic process mediated in part by specialized pro-resolving mediators (SPMs), lipid-derived molecules generated from omega-3 polyunsaturated fatty acids (PUFAs) such as eicosapentaenoic acid (C20:5n-3, EPA) and docosahexaenoic acid (C22:6n-3, DHA). These mediators—including resolvins, protectins, and maresins—exert potent immunomodulatory actions that restore tissue homeostasis and attenuate inflammation without immunosuppression. Despite the established role of SPMs, clinical and preclinical studies demonstrate that SPM biosynthesis is often impaired in disease states, limiting the efficacy of omega-3 PUFA-based nutritional interventions. To explore the potential of standardized SPM enrichment in enteral nutrition (EN), a multidisciplinary panel of experts conducted a Delphi-based consensus process. Consensus statements were developed supporting the rationale for enriching EN with preformed SPMs or their stable precursors to overcome compromised endogenous biosynthesis and enhance clinical benefits. Preliminary human studies suggest that such enrichment may reduce inflammation, improve immune function, and contribute to better outcomes in conditions such as obesity, atherosclerosis, infections, and chronic pain. The panel emphasized the need for rigorously designed clinical trials to determine whether enteral SPMs have measurable clinical effects and, if so, to define effective dosing strategies. Overall, SPM-enriched EN represents a potential advancement in the nutritional modulation of inflammation, warranting further investigation to guide evidence-based clinical application.
急性炎症是宿主防御和组织修复所必需的重要生物反应,但未解决的炎症可能导致严重疾病、心血管疾病、神经退行性疾病和癌症的不良后果。新出现的证据强调,炎症的消退是一个活跃的生物合成过程,部分由专门的促消退介质(SPMs)介导,即由omega-3多不饱和脂肪酸(pufa)产生的脂质衍生分子,如二十碳五烯酸(C20:5n-3, EPA)和二十二碳六烯酸(C22:6n-3, DHA)。这些介质——包括溶解蛋白、保护蛋白和蛋白酶——发挥有效的免疫调节作用,在不抑制免疫的情况下恢复组织稳态和减轻炎症。尽管SPM的作用已经确立,但临床和临床前研究表明,SPM的生物合成通常在疾病状态下受损,从而限制了基于omega-3 pufa的营养干预的效果。为了探索肠内营养(EN)中标准化SPM富集的潜力,一个多学科专家小组进行了基于德尔菲的共识过程。共识声明支持用预成型SPMs或其稳定前体富集EN的基本原理,以克服内源性生物合成受损并提高临床效益。初步的人体研究表明,这种富集可能会减少炎症,改善免疫功能,并有助于改善肥胖、动脉粥样硬化、感染和慢性疼痛等疾病的预后。该小组强调需要进行严格设计的临床试验,以确定肠内SPMs是否具有可测量的临床效果,如果有,则确定有效的给药策略。总之,富含spm的EN代表了炎症营养调节的潜在进展,值得进一步研究以指导循证临床应用。
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引用次数: 0
The effects of ketogenic diet on polycystic ovary syndrome: A systematic review and meta-analysis 生酮饮食对多囊卵巢综合征的影响:系统回顾和荟萃分析
IF 7.4 2区 医学 Q1 NUTRITION & DIETETICS Pub Date : 2026-01-01 Epub Date: 2025-12-03 DOI: 10.1016/j.clnu.2025.11.019
Elisavet Arsenaki , Dimitra Stathi , Konstantinos Katsikas Triantafyllidis , Yeshey Seldon , Stergios Bobotis , George Lockett , Shaun Haran , Maria Kyrgiou , Srdjan Saso , Konstantinos S. Kechagias

Background and aim

Polycystic ovary syndrome (PCOS) is a common endocrine disorder linked to obesity, insulin resistance, and reproductive dysfunction. While dietary modification is central to management, the optimal approach remains unclear. This systematic review and meta-analysis evaluated the effects of the ketogenic diet on anthropometric, metabolic, and endocrinological outcomes in women with PCOS.

Methods

A systematic search of five databases (inception–February 2025) identified studies reporting outcomes in women with PCOS following a ketogenic diet. Meta-analyses compared pre- and post-ketogenic diet outcomes (primary analysis) and ketogenic diet versus other diets (secondary analysis). Summary mean differences (MDs) with 95 % confidence intervals (CIs) were calculated using a random-effects model. Risk of bias and evidence quality were assessed using validated tools and the GRADE approach.

Results

Fifteen studies were included in the review, of which ten met the criteria for inclusion in the meta-analysis. Most participants in the included studies had a BMI exceeding 25 kg/m2. In the primary analysis, ketogenic diet led to significant reductions in BMI (MD: −3.38 kg/m2, 95 % CI: 2.53 to 4.23, I2 = 0 %), weight (MD: −10.77 kg, 95 % CI: 8.73 to 12.81, I2 = 0 %), and waist circumference (MD: −8.93 cm, 95 % CI: 5.66 to 12.19; I2 = 44 %). Reductions were also observed in luteinising hormone (LH) levels (MD: 4.07, 95 % CI: 3.36 to 4.79, I2 = 0 %), menstrual cycle duration (MD: 26.06, 95 % CI: 2.28 to 49.85, I2 = 68 %), and insulin resistance (MD: 2.43; 95 % CI: 1.16 to 3.69, I2 = 95 %). In the secondary analysis, ketogenic diet showed superior effects on BMI (MD: −1.65, 95 % CI: −2.76 to −0.55, I2 = 0 %) and weight loss (MD: −4.98, 95 % CI: −9.05 to −0.91, I2 = 7 %) as well as LH levels (MD 1.68, 95 % CI: −3.18 to −0.19, I2 = 30 %) and insulin resistance (MD: −1.71, 95 % CI: −2.98 to −0.43, I2 = 90 %) compared to other diets, though results for androgen and lipid parameters were inconsistent. Heterogeneity was high for most of the studied outcomes.

Conclusion

The ketogenic diet appears to be a promising dietary intervention for improving weight, insulin sensitivity, and reproductive hormone profiles in women with PCOS and a BMI exceeding 25 kg/m2. Nonetheless, the considerable heterogeneity among included studies and variations in study quality warrant cautious interpretation of these findings. Further high-quality, long-term randomized controlled trials are needed to more definitively establish the efficacy and safety of the ketogenic diet in women with PCOS.
背景和目的多囊卵巢综合征(PCOS)是一种常见的内分泌疾病,与肥胖、胰岛素抵抗和生殖功能障碍有关。虽然饮食调整是治疗的核心,但最佳方法尚不清楚。本系统综述和荟萃分析评估了生酮饮食对多囊卵巢综合征女性人体测量学、代谢和内分泌结果的影响。方法系统检索5个数据库(启动至2025年2月),确定了报告生酮饮食后多囊卵巢综合征(PCOS)妇女结果的研究。荟萃分析比较了生酮饮食前后的结果(主要分析)和生酮饮食与其他饮食的对比(次要分析)。采用随机效应模型计算具有95%置信区间(ci)的总平均差(MDs)。使用经过验证的工具和GRADE方法评估偏倚风险和证据质量。结果本综述纳入了15项研究,其中10项符合纳入meta分析的标准。在纳入的研究中,大多数参与者的BMI超过25 kg/m2。在初步分析中,生酮饮食导致BMI (MD: - 3.38 kg/m2, 95% CI: 2.53至4.23,I2 = 0%)、体重(MD: - 10.77 kg, 95% CI: 8.73至12.81,I2 = 0%)和腰围(MD: - 8.93 cm, 95% CI: 5.66至12.19,I2 = 44%)的显著降低。在黄体生成素(LH)水平(MD: 4.07, 95% CI: 3.36至4.79,I2 = 0%)、月经周期持续时间(MD: 26.06, 95% CI: 2.28至49.85,I2 = 68%)和胰岛素抵抗(MD: 2.43, 95% CI: 1.16至3.69,I2 = 95%)方面也观察到降低。在二级分析,生酮饮食显示优越的影响体重指数(MD:−1.65,95%置信区间CI: 2.76−−0.55,I2 = 0%)和减肥(MD:−4.98,95%置信区间CI: 9.05−−0.91,I2 = 7%)以及LH水平(MD 1.68, 95%置信区间CI: 3.18−−0.19,I2 = 30%)和胰岛素抵抗(MD:−1.71,95%置信区间CI: 2.98−−0.43,I2 = 90%)与其他饮食相比,虽然雄激素和脂质参数的结果是不一致的。大多数研究结果的异质性很高。结论生酮饮食是改善PCOS患者体重、胰岛素敏感性和生殖激素谱的一种有前景的饮食干预方法,BMI超过25 kg/m2。尽管如此,纳入研究之间的相当大的异质性和研究质量的差异需要谨慎解释这些发现。需要进一步的高质量、长期的随机对照试验来更明确地确定生酮饮食对多囊卵巢综合征女性的疗效和安全性。
{"title":"The effects of ketogenic diet on polycystic ovary syndrome: A systematic review and meta-analysis","authors":"Elisavet Arsenaki ,&nbsp;Dimitra Stathi ,&nbsp;Konstantinos Katsikas Triantafyllidis ,&nbsp;Yeshey Seldon ,&nbsp;Stergios Bobotis ,&nbsp;George Lockett ,&nbsp;Shaun Haran ,&nbsp;Maria Kyrgiou ,&nbsp;Srdjan Saso ,&nbsp;Konstantinos S. Kechagias","doi":"10.1016/j.clnu.2025.11.019","DOIUrl":"10.1016/j.clnu.2025.11.019","url":null,"abstract":"<div><h3>Background and aim</h3><div>Polycystic ovary syndrome (PCOS) is a common endocrine disorder linked to obesity, insulin resistance, and reproductive dysfunction. While dietary modification is central to management, the optimal approach remains unclear. This systematic review and meta-analysis evaluated the effects of the ketogenic diet on anthropometric, metabolic, and endocrinological outcomes in women with PCOS.</div></div><div><h3>Methods</h3><div>A systematic search of five databases (inception–February 2025) identified studies reporting outcomes in women with PCOS following a ketogenic diet. Meta-analyses compared pre- and post-ketogenic diet outcomes (primary analysis) and ketogenic diet versus other diets (secondary analysis). Summary mean differences (MDs) with 95 % confidence intervals (CIs) were calculated using a random-effects model. Risk of bias and evidence quality were assessed using validated tools and the GRADE approach.</div></div><div><h3>Results</h3><div>Fifteen studies were included in the review, of which ten met the criteria for inclusion in the meta-analysis. Most participants in the included studies had a BMI exceeding 25 kg/m<sup>2</sup>. In the primary analysis, ketogenic diet led to significant reductions in BMI (MD: −3.38 kg/m<sup>2</sup>, 95 % CI: 2.53 to 4.23, I<sup>2</sup> = 0 %), weight (MD: −10.77 kg, 95 % CI: 8.73 to 12.81, I<sup>2</sup> = 0 %), and waist circumference (MD: −8.93 cm, 95 % CI: 5.66 to 12.19; I<sup>2</sup> = 44 %). Reductions were also observed in luteinising hormone (LH) levels (MD: 4.07, 95 % CI: 3.36 to 4.79, I<sup>2</sup> = 0 %), menstrual cycle duration (MD: 26.06, 95 % CI: 2.28 to 49.85, I<sup>2</sup> = 68 %), and insulin resistance (MD: 2.43; 95 % CI: 1.16 to 3.69, I<sup>2</sup> = 95 %). In the secondary analysis, ketogenic diet showed superior effects on BMI (MD: −1.65, 95 % CI: −2.76 to −0.55, I<sup>2</sup> = 0 %) and weight loss (MD: −4.98, 95 % CI: −9.05 to −0.91, I<sup>2</sup> = 7 %) as well as LH levels (MD 1.68, 95 % CI: −3.18 to −0.19, I<sup>2</sup> = 30 %) and insulin resistance (MD: −1.71, 95 % CI: −2.98 to −0.43, I<sup>2</sup> = 90 %) compared to other diets, though results for androgen and lipid parameters were inconsistent. Heterogeneity was high for most of the studied outcomes.</div></div><div><h3>Conclusion</h3><div>The ketogenic diet appears to be a promising dietary intervention for improving weight, insulin sensitivity, and reproductive hormone profiles in women with PCOS and a BMI exceeding 25 kg/m<sup>2</sup>. Nonetheless, the considerable heterogeneity among included studies and variations in study quality warrant cautious interpretation of these findings. Further high-quality, long-term randomized controlled trials are needed to more definitively establish the efficacy and safety of the ketogenic diet in women with PCOS.</div></div>","PeriodicalId":10517,"journal":{"name":"Clinical nutrition","volume":"56 ","pages":"Article 106535"},"PeriodicalIF":7.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145799552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Systematic high-calorie, high-protein oral nutritional support in hospitalized, moderately hypophagic patients at nutritional risk: A randomized-controlled trial 有营养风险的住院中度食疗患者系统的高热量、高蛋白口服营养支持:一项随机对照试验
IF 7.4 2区 医学 Q1 NUTRITION & DIETETICS Pub Date : 2026-01-01 Epub Date: 2025-11-29 DOI: 10.1016/j.clnu.2025.11.017
Emanuele Cereda , Valeria Borioli , Marilisa Caraccia , Anna Uggè , Francesca De Simeis , Raffaele Bruno , Angelo Guido Corsico , Antonio Di Sabatino , Paolo Pedrazzoli , Riccardo Caccialanza

Background

Acute diseases responsible for hospitalization negatively affect protein-calorie balance, as well as the capacity of patients to cope with it. In those who still retain spontaneous feeding, oral nutritional supplements (ONSs) administration is an effective support strategy, but evidence on the timing they should be provided along with nutritional counseling during hospitalization is lacking. Hence, we evaluated the efficacy of the systematic use of ONSs since hospital admission.

Methods

In a single-site, open-label, randomized, controlled trial (NCT02763904; July 2016–July 2024), acutely hospitalized adults (N = 220) at nutritional risk (NRS-2002 ≥ 3), without severe hypophagia (defined as food intake <50 % of estimated calorie requirements) and with an expected length of stay (LOS) ≥7 days were randomized to receive, along with nutritional counseling, high-protein ONSs systematically since admission or on-demand since day 8. The primary endpoint was the change in phase angle (PhA) on day 8. Secondary outcomes were the change in PhA at discharge and in muscle strength, body weight and protein-calorie intake over the hospital stay. LOS and the rate of acquired infections were also evaluated.

Results

A total of 201 patients were re-assessed at day 8 and at discharge. Systematic ONSs (n = 100) resulted in improved PhA at day 8 (mean difference, 0.47 [95%CI, 0.31–0.62]; P < 0.001) and at discharge (mean difference, 0.49 [95%CI, 0.33–0.64]; P < 0.001). A significant effect was also found for body weight and protein-calorie intake at all time-points (P < 0.001) and for muscle strength at discharge (P = 0.042). LOS was also reduced (−2 days; P = 0.044).

Conclusions

In acutely hospitalized adult patients at nutritional risk and without severe hypophagia, the systematic use of ONSs since admission improved body composition, muscle function, and protein-calorie intake, and reduced LOS.
急性疾病导致住院治疗对蛋白质-卡路里平衡以及患者应对能力产生负面影响。对于那些仍然保持自发喂养的患者,口服营养补充剂(ONSs)管理是一种有效的支持策略,但缺乏关于在住院期间提供营养咨询的时间的证据。因此,我们评估了自入院以来系统使用ONSs的疗效。方法在一项单点、开放标签、随机对照试验(NCT02763904; 2016年7月- 2024年7月)中,随机选择有营养风险(NRS-2002≥3)、无严重吞咽不足(定义为食物摄入量≥估计卡路里需取量的50%)、预期住院时间(LOS)≥7天的急性住院成人(N = 220),自入院以来系统地接受高蛋白ONSs治疗,并提供营养咨询。主要终点为第8天的相位角变化(PhA)。次要结果是出院时PhA的变化,以及住院期间肌肉力量、体重和蛋白质卡路里摄入量的变化。对LOS和获得性感染率也进行了评估。结果共有201例患者在第8天和出院时重新评估。系统ONSs (n = 100)在第8天改善了PhA(平均差值为0.47 [95%CI, 0.31-0.62]; P < 0.001)和出院时(平均差值为0.49 [95%CI, 0.33-0.64]; P < 0.001)。所有时间点的体重和蛋白质卡路里摄入量(P < 0.001)以及出院时的肌肉力量(P = 0.042)也有显著影响。LOS也减少(- 2天;P = 0.044)。结论在急性住院的有营养风险且无严重吞咽障碍的成年患者中,自入院以来系统使用ONSs可改善身体成分、肌肉功能和蛋白质热量摄入,并降低LOS。
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引用次数: 0
Association of sarcopenic obesity with dementia risk in a cohort of older women 老年妇女队列中肌肉减少型肥胖与痴呆风险的关系
IF 7.4 2区 医学 Q1 NUTRITION & DIETETICS Pub Date : 2026-01-01 Epub Date: 2025-12-06 DOI: 10.1016/j.clnu.2025.11.026
Zhongyang Guan , Blossom CM. Stephan , Lorenzo M. Donini , Joshua R. Lewis , Carla M. Prado , Richard L. Prince , David Scott , Kun Zhu , Marc Sim , Mario Siervo

Background and aims

Longitudinal studies have explored the association between sarcopenic obesity (SO) and the risk of cognitive impairment, yet findings remain mixed. This study aimed to investigate the associations of SO with risk of incident dementia in older women, using two diagnostic models: the Sarcopenic Obesity Global Leadership Initiative (SOGLI) and the load-capacity model.

Methods

We analysed data from 900 community-dwelling women (aged ≥70 years). SO was defined using two models: (1) the SOGLI criteria, based on low handgrip strength (HGS), low appendicular lean soft tissue to body weight (ALST/W) ratio, and high fat mass percentage (%FM); and (2) the load-capacity model, based on a high truncal fat mass to ALST (TrFM/ALST) ratio. Incident dementia events (hospitalisation and/or death) over 9.5 years were identified through linked health records using International Classification of Diseases (ICD) codes. Cox proportional hazards and Fine–Gray sub-distribution models were applied.

Results

Using the SOGLI criteria, SO was not significantly associated with the risk of overall dementia events compared with the non-sarcopenic, non-obesity group (hazard ratio [HR] 0.63, 95 % CI 0.39–1.03); however, SO was significantly associated with a reduced risk of dementia-related hospitalisation (HR 0.57, 95 % CI 0.33–0.98), mainly driven by the reduced risk observed with obesity. When defined by the load-capacity model, SO remained significantly associated with a reduced risk of overall dementia events (HR 0.54, 95 % CI 0.34–0.85). Restricted cubic spline (RCS) analyses demonstrated significant associations of lower HGS, lower %FM, higher ALST/W ratio, and lower TrFM/ALST ratio with increased risk of overall dementia events. Results remained consistent in sensitivity analyses excluding participants with BMI <21 kg/m2 (n = 67) or %FM below the 15th percentile (n = 135), and after further adjustment for age at highest education level..

Conclusion

This is the first longitudinal study to examine the association between SO and dementia using either the SOGLI or load-capacity models. In this cohort of older women, SO was associated with a lower risk of dementia-related hospitalisation. These findings suggest that the relationship between obesity and dementia risk in late life may differ from current evidence regarding midlife, indicating potential age-specific effects. Further research is needed to clarify the underlying mechanisms and generalisability of these observations to broader populations..
背景和目的纵向研究探讨了肌肉减少型肥胖(SO)与认知障碍风险之间的关系,但研究结果仍不一致。本研究旨在通过两种诊断模型:肌少性肥胖全球领导倡议(SOGLI)和负荷能力模型,探讨老年女性SO与痴呆发生风险的关系。方法对900名年龄≥70岁的社区妇女进行数据分析。SO的定义采用两个模型:(1)SOGLI标准,基于低握力(HGS)、低阑尾瘦软组织与体重(ALST/W)比和高脂肪质量百分比(%FM);(2)基于较高的躯干脂肪质量与ALST (TrFM/ALST)比率的荷载-能力模型。通过使用国际疾病分类(ICD)代码的相关健康记录确定9.5年以上的偶发性痴呆事件(住院和/或死亡)。采用Cox比例风险模型和Fine-Gray子分布模型。结果使用SOGLI标准,与非肌肉减少、非肥胖组相比,SO与总体痴呆事件的风险无显著相关(风险比[HR] 0.63, 95% CI 0.39-1.03);然而,SO与痴呆相关住院风险降低显著相关(HR 0.57, 95% CI 0.33-0.98),主要是由于肥胖导致的风险降低。当用负荷能力模型定义时,SO仍然与总体痴呆事件风险降低显著相关(HR 0.54, 95% CI 0.34-0.85)。限制性三次样条(RCS)分析显示,较低的HGS、较低的%FM、较高的ALST/W比率和较低的TrFM/ALST比率与总体痴呆事件的风险增加有显著关联。排除BMI = 21 kg/m2 (n = 67)或%FM低于第15个百分点(n = 135)的参与者,并进一步调整最高教育水平的年龄后,敏感性分析的结果保持一致。结论:这是第一个使用SOGLI或负荷能力模型检验SO与痴呆之间关系的纵向研究。在这个老年妇女队列中,SO与痴呆相关住院的风险较低有关。这些发现表明,肥胖和老年痴呆风险之间的关系可能与目前关于中年的证据不同,这表明了潜在的年龄特异性影响。需要进一步的研究来澄清潜在的机制和这些观察结果在更广泛人群中的普遍性。
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引用次数: 0
Challenges of nutritional support in patients with diabetes: A position paper of the ESPEN special interest group 糖尿病患者营养支持的挑战:ESPEN特别兴趣小组的立场文件
IF 7.4 2区 医学 Q1 NUTRITION & DIETETICS Pub Date : 2026-01-01 Epub Date: 2025-12-17 DOI: 10.1016/j.clnu.2025.106550
Laurence Genton , Miguel Leon Sanz , Marianna Arvanitakis , María D. Ballesteros-Pomar , Lia Bally , Rocco Barazzoni , Cécile Bétry , Rosa Burgos , Cristina Cuerda , Alia Hadefi , Stanislav Klek , Meliha Mahmutovic , Didier Quilliot , Diana Rubin , Stéphane M. Schneider , Mireille J. Serlie , Tinh-Hai Collet
Malnutrition affects up to 30 % of the general population, and especially older people with polymorbid conditions. In parallel, the prevalence of diabetes increases with age affecting over 800 million adults worldwide. Healthcare providers are increasingly challenged to care for patients with diabetes that require nutritional support. To address this issue, the ESPEN Special Interest Group "Nutrition and Diabetes", aims to provide guidance for health care providers that treat these patients. This paper had three aims: 1) to summarise the guidelines and recommendations regarding nutritional support and diabetes or stress hyperglycaemia provided by scientific societies, 2) to review the associations of nutritional disorders with diabetes and its pharmacological treatments, and 3) to identify the challenges of optimal nutritional care for patients with diabetes and stress hyperglycaemia. To this end, we conducted a systematic search of guidelines and recommendations on nutritional support for patients with diabetes or stress hyperglycaemia, that have been published in English by national and international societies over the last 15 years. Our systematic search showed that published guidelines and recommendations rarely addressed the practical management of blood glucose control according to the modality of nutritional support. The literature on the association of malnutrition with diabetes and its pharmacological treatment is very limited. The identified challenges include the multidisciplinary and multiprofessional continuity of care between the hospital and ambulatory settings, the ideal pattern of hospital food, the choice of oral nutritional supplements, the adjustment of diabetes management to nutritional support, and diabetes technology to support nutritional care in these patients.
营养不良影响着高达30%的普通人口,特别是患有多种疾病的老年人。与此同时,糖尿病的患病率随着年龄的增长而增加,影响到全世界8亿多成年人。医疗保健提供者在照顾需要营养支持的糖尿病患者方面面临越来越大的挑战。为解决这一问题,ESPEN “营养与糖尿病”特别兴趣小组旨在为治疗这些患者的保健提供者提供指导。本文的目的有三个:1)总结科学学会提供的关于营养支持和糖尿病或应激性高血糖的指南和建议;2)回顾营养失调与糖尿病及其药物治疗的关系;3)确定糖尿病和应激性高血糖患者最佳营养护理的挑战。为此,我们对过去15年来由国家和国际学会以英文出版的关于糖尿病或应激性高血糖患者营养支持的指南和建议进行了系统的搜索。我们的系统搜索显示,已发表的指南和建议很少涉及根据营养支持方式控制血糖的实际管理。关于营养不良与糖尿病的关系及其药物治疗的文献非常有限。确定的挑战包括医院和门诊环境之间多学科和多专业护理的连续性,医院食品的理想模式,口服营养补充剂的选择,糖尿病管理对营养支持的调整,以及糖尿病技术支持这些患者的营养护理。
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引用次数: 0
An observational study on the effect of l-ornithine-l-aspartate (LOLA) on the gut microbiome in liver cirrhosis. A single center phase 4 study l-鸟氨酸-l-天冬氨酸(LOLA)对肝硬化患者肠道微生物组影响的观察性研究。单中心4期研究
IF 7.4 2区 医学 Q1 NUTRITION & DIETETICS Pub Date : 2026-01-01 Epub Date: 2025-11-29 DOI: 10.1016/j.clnu.2025.11.007
Daniel Habich , Angela Horvath , Nicole Feldbacher , Lavra Rebol , Maximilian Nepel , Tobias Madl , Hans-Jörg Habisch , Franziska Baumann-Durchschein , Stefan Fürst , Johannes Plank , Florian Rainer , Walter Spindelböck , Rudolf E. Stauber , Elisabeth Tatscher , Martin Wagner , Gernot Zollner , Vanessa Stadlbauer
<div><h3>Background & Aims</h3><div>Liver cirrhosis is associated with gut microbiome dysbiosis, intestinal inflammation and gut barrier dysfunction, contributing to reduced quality of life and the development of complications. We showed in a retrospective study that <span>l</span>-ornithine-<span>l</span>-aspartate (LOLA) was associated with improvement in taxonomic composition of the microbiome. Here we prospectively studied the influence of LOLA on the gut microbiome, quality of life, sarcopenia and the gut barrier.</div></div><div><h3>Methods</h3><div>In this phase 4 study, patients with liver cirrhosis and hepatic encephalopathy grade 0–2 received LOLA 18 g/day orally for 3 months. We studied faecal microbiome composition (primary endpoint abundance of the genus <em>Flavonifractor)</em>, microbiome function, quality of life, serum ammonia levels, sarcopenia and frailty, biomarkers of the gut liver axis and the stool, serum and urine metabolome.</div></div><div><h3>Results</h3><div>We screened 258 patients with liver cirrhosis, included 65, of whom 52 patients (40 % female, age 62 (58; 65)) completed the study. LOLA intake decreased the abundance of the genus <em>Romboutsia</em>, increased the abundance of the genus <em>Enterococcus,</em> but did not alter other microbiome parameters. LOLA improved one out of 8 dimension of quality of life (vitality) and decreased serum ammonia concentrations. The subgroup of patients with improved ammonia concentrations responded with a halt in further muscle mass declined over the study period. Diamine oxidase, a marker of intestinal mucosal condition, decreased and LPS binding protein increased. Metabolomic analysis indicated an increase in alanine concentration.</div></div><div><h3>Conclusions</h3><div>LOLA improved one quality of life dimension (vitality) and biomarker of the gut–liver axis, altered innate immune response, faecal microbiome and metabolome. LOLA prevented muscle loss only in patients with elevated ammonia concentrations at baseline. LOLA may therefore be a useful adjunct treatment to improve quality of life in cirrhosis and a promising intervention for muscle loss prevention in hyperammonemic patients.</div></div><div><h3>Clinical Trials Registration number</h3><div>clinicaltrials.gov NCT05737030.</div></div><div><h3>Impact and implication</h3><div>We conducted a 12-week prospective cohort study to test the effect of the ammonia lowering drug <span>l</span>-ornithine-<span>l</span>-aspartate (LOLA) on the gut microbiome, biomarkers along the gut-liver-axis, muscle health and quality of life in patients with liver cirrhosis and hepatic encephalopathy. Although our primary endpoint was not reached, LOLA slightly altered microbiome composition and function and improved vitality, a clinically relevant patient reported outcome parameter. LOLA also improved biomarkers for the gut-liver-axis, innate immune response and prevented muscle loss in patients with elevated ammonia levels at baselin
背景:肝硬化与肠道菌群失调、肠道炎症和肠道屏障功能障碍相关,导致生活质量下降和并发症的发生。我们在一项回顾性研究中发现,l-鸟氨酸-l-天冬氨酸(LOLA)与微生物组分类组成的改善有关。本研究前瞻性地研究了LOLA对肠道微生物组、生活质量、肌肉减少症和肠道屏障的影响。方法在这项4期研究中,0-2级肝硬化和肝性脑病患者口服LOLA 18 g/d,持续3个月。我们研究了粪便微生物组组成(主要终点黄酮因子属丰度)、微生物组功能、生活质量、血清氨水平、肌肉减少症和虚弱、肠肝轴和粪便、血清和尿液代谢组的生物标志物。结果我们筛选了258例肝硬化患者,包括65例,其中52例(40%为女性,62岁(58;65))完成了研究。LOLA摄入量降低了Romboutsia属的丰度,增加了Enterococcus属的丰度,但没有改变其他微生物组参数。LOLA改善了生活质量(活力)8个维度中的1个,降低了血清氨浓度。氨浓度改善的患者亚组在研究期间肌肉质量的进一步下降停止。肠黏膜状况指标二胺氧化酶降低,脂多糖结合蛋白升高。代谢组学分析表明丙氨酸浓度增加。结论slola改善了一个生活质量维度(活力)和肠-肝轴生物标志物,改变了先天免疫反应、粪便微生物组和代谢组。LOLA仅在基线氨浓度升高的患者中预防肌肉损失。因此,LOLA可能是改善肝硬化患者生活质量的一种有用的辅助治疗方法,也是预防高氨血症患者肌肉损失的一种有希望的干预措施。临床试验注册号:clinicaltrials.gov NCT05737030。影响和意义我们进行了一项为期12周的前瞻性队列研究,以测试降氨药物l-鸟氨酸-l-天冬氨酸(LOLA)对肝硬化和肝性脑病患者肠道微生物群、肠-肝轴生物标志物、肌肉健康和生活质量的影响。虽然我们的主要终点没有达到,但LOLA略微改变了微生物组的组成和功能,并改善了活力,这是临床相关的患者报告的结果参数。LOLA还改善了肠-肝轴的生物标志物、先天免疫反应,并预防了基线氨水平升高患者的肌肉损失。因此,LOLA可能是一种有用的辅助治疗方法,可以改善肝硬化患者的生活质量,防止高氨血症患者的肌肉损失。
{"title":"An observational study on the effect of l-ornithine-l-aspartate (LOLA) on the gut microbiome in liver cirrhosis. A single center phase 4 study","authors":"Daniel Habich ,&nbsp;Angela Horvath ,&nbsp;Nicole Feldbacher ,&nbsp;Lavra Rebol ,&nbsp;Maximilian Nepel ,&nbsp;Tobias Madl ,&nbsp;Hans-Jörg Habisch ,&nbsp;Franziska Baumann-Durchschein ,&nbsp;Stefan Fürst ,&nbsp;Johannes Plank ,&nbsp;Florian Rainer ,&nbsp;Walter Spindelböck ,&nbsp;Rudolf E. Stauber ,&nbsp;Elisabeth Tatscher ,&nbsp;Martin Wagner ,&nbsp;Gernot Zollner ,&nbsp;Vanessa Stadlbauer","doi":"10.1016/j.clnu.2025.11.007","DOIUrl":"10.1016/j.clnu.2025.11.007","url":null,"abstract":"&lt;div&gt;&lt;h3&gt;Background &amp; Aims&lt;/h3&gt;&lt;div&gt;Liver cirrhosis is associated with gut microbiome dysbiosis, intestinal inflammation and gut barrier dysfunction, contributing to reduced quality of life and the development of complications. We showed in a retrospective study that &lt;span&gt;l&lt;/span&gt;-ornithine-&lt;span&gt;l&lt;/span&gt;-aspartate (LOLA) was associated with improvement in taxonomic composition of the microbiome. Here we prospectively studied the influence of LOLA on the gut microbiome, quality of life, sarcopenia and the gut barrier.&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Methods&lt;/h3&gt;&lt;div&gt;In this phase 4 study, patients with liver cirrhosis and hepatic encephalopathy grade 0–2 received LOLA 18 g/day orally for 3 months. We studied faecal microbiome composition (primary endpoint abundance of the genus &lt;em&gt;Flavonifractor)&lt;/em&gt;, microbiome function, quality of life, serum ammonia levels, sarcopenia and frailty, biomarkers of the gut liver axis and the stool, serum and urine metabolome.&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Results&lt;/h3&gt;&lt;div&gt;We screened 258 patients with liver cirrhosis, included 65, of whom 52 patients (40 % female, age 62 (58; 65)) completed the study. LOLA intake decreased the abundance of the genus &lt;em&gt;Romboutsia&lt;/em&gt;, increased the abundance of the genus &lt;em&gt;Enterococcus,&lt;/em&gt; but did not alter other microbiome parameters. LOLA improved one out of 8 dimension of quality of life (vitality) and decreased serum ammonia concentrations. The subgroup of patients with improved ammonia concentrations responded with a halt in further muscle mass declined over the study period. Diamine oxidase, a marker of intestinal mucosal condition, decreased and LPS binding protein increased. Metabolomic analysis indicated an increase in alanine concentration.&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Conclusions&lt;/h3&gt;&lt;div&gt;LOLA improved one quality of life dimension (vitality) and biomarker of the gut–liver axis, altered innate immune response, faecal microbiome and metabolome. LOLA prevented muscle loss only in patients with elevated ammonia concentrations at baseline. LOLA may therefore be a useful adjunct treatment to improve quality of life in cirrhosis and a promising intervention for muscle loss prevention in hyperammonemic patients.&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Clinical Trials Registration number&lt;/h3&gt;&lt;div&gt;clinicaltrials.gov NCT05737030.&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Impact and implication&lt;/h3&gt;&lt;div&gt;We conducted a 12-week prospective cohort study to test the effect of the ammonia lowering drug &lt;span&gt;l&lt;/span&gt;-ornithine-&lt;span&gt;l&lt;/span&gt;-aspartate (LOLA) on the gut microbiome, biomarkers along the gut-liver-axis, muscle health and quality of life in patients with liver cirrhosis and hepatic encephalopathy. Although our primary endpoint was not reached, LOLA slightly altered microbiome composition and function and improved vitality, a clinically relevant patient reported outcome parameter. LOLA also improved biomarkers for the gut-liver-axis, innate immune response and prevented muscle loss in patients with elevated ammonia levels at baselin","PeriodicalId":10517,"journal":{"name":"Clinical nutrition","volume":"56 ","pages":"Article 106522"},"PeriodicalIF":7.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145760785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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Clinical nutrition
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