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Fibre manipulation to manage symptom severity and quality of life in patients with functional bowel disorders: A systematic review 纤维操作对功能性肠病患者的症状严重程度和生活质量的控制:一项系统综述。
IF 2.6 Q3 NUTRITION & DIETETICS Pub Date : 2026-04-01 Epub Date: 2026-01-10 DOI: 10.1016/j.clnesp.2025.102896
Rojina Raked , Mary Ibrahim , Jennifer Utter , Shannon Morley , Kate Mueller

Background & aims

Functional Bowel Disorders (FBD) are clinically diagnosable conditions impacting the mid to lower gastrointestinal tract. Fibre manipulation (through amount or type) is commonly employed as a first-line treatment for symptom management. This systematic review will investigate the impact of fibre manipulation on symptom management and quality of life in adults diagnosed with FBD.

Methods

Four electronic databases (PubMed, EMBASE, CINAHL, and Cochrane Central) were systematically searched from January 2013 to December 2024. Studies were included if they reported Randomised Controlled Trials (RCTs) examining the impact of fibre manipulation in adults (≥18 years) with FBD. The primary outcome was symptom management, and secondary outcome was Quality of Life (QoL). Study quality was assessed using the Cochrane risk of bias tool 2. Data were narratively synthesised.

Results

Searches identified 8864 records; 5167 were screened against the eligibility criteria, and 44 records were assessed at full-text review. Ten studies reporting eight parallel and two crossover RCTs evaluating differing fibre supplements and doses for people with various types of FBD were included. Intervention length ranged from one to eight weeks, and the number of participants ranged from 11 to 250. The reported results varied. Seven studies reported significant improvements in symptom severity, and one study reported significant worsening of symptoms when compared to controls. The results indicated that fibre supplementation with agave fructans improved constipation but worsened flatulence, acacia fibre improved stool frequency, psyllium improved stool consistency, nopal fibre improved symptom severity, vege-powder improved stool hardness and amount, incomplete evacuation, straining and evacuation frequency, pectin powder improved abdominal pain, bloating, stool consistency and symptom severity, and a combination of sugarcane bagasse and resistant starch improved flatulence. One study reported significant worsening in QoL in the intervention group when compared to the placebo control group.

Conclusions

This review concluded that fibre supplementation may be an effective treatment to improve symptom management for patients with FBD, though high heterogeneity precluded meta-analysis. Two studies were assessed as low risk of bias, seven had some concerns, and one was assessed as high risk of bias. The included studies reported short-term interventions for small groups of participants. Further research with greater numbers of participants with FBD that evaluate interventions for longer time periods are warranted.
背景与目的:功能性肠病(FBD)是临床上可诊断的影响中、下胃肠道的疾病。纤维操作(通过量或类型)通常被用作症状管理的一线治疗。本系统综述将调查纤维操纵对诊断为FBD的成人症状管理和生活质量的影响。方法:系统检索2013年1月至2024年12月的PubMed、EMBASE、CINAHL和Cochrane Central 4个电子数据库。研究纳入随机对照试验(RCTs),检查纤维操作对成年(≥18岁)FBD患者的影响。主要结局是症状管理,次要结局是生活质量(QoL)。使用Cochrane偏倚风险工具2评估研究质量。数据以叙述的方式合成。结果:检索确定了8864条记录;5167人根据资格标准进行筛选,47条记录在全文审查中进行评估。10项研究报告了8项平行随机对照试验和2项交叉随机对照试验,评估了不同类型FBD患者的不同纤维补充剂和剂量。干预时间从一周到八周不等,参与者人数从11人到250人不等。报告的结果各不相同。七项研究报告了症状严重程度的显著改善,一项研究报告了与对照组相比症状的显著恶化。结果表明,添加龙舌兰果糖的纤维可改善便秘,但会加重胀气,金合子纤维可改善大便频率,车前草可改善大便一致性,不腐纤维可改善症状严重程度,蔬菜粉可改善大便硬度和数量、不完全排便、拉伤和排便频率,果胶粉可改善腹痛、腹胀、大便一致性和症状严重程度。甘蔗渣和抗性淀粉的组合改善了肠胃胀气。一项研究报告,与安慰剂对照组相比,干预组的生活质量明显恶化。结论:本综述得出结论,纤维补充可能是改善FBD患者症状管理的有效治疗方法,尽管高异质性排除了荟萃分析。两项研究被评估为低偏倚风险,七项有一些担忧,一项被评估为高偏倚风险。纳入的研究报告了一小群参与者的短期干预措施。有必要对更多的FBD参与者进行进一步的研究,以评估更长时间的干预措施。
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引用次数: 0
Diabetes and sarcopenia in chronic kidney disease: Moving beyond a "one-size-fits-all" approach. 慢性肾脏疾病中的糖尿病和肌肉减少症:超越“一刀切”的方法。
IF 2.6 Q3 NUTRITION & DIETETICS Pub Date : 2026-04-01 Epub Date: 2026-01-22 DOI: 10.1016/j.clnesp.2026.102941
Marvery P Duarte, Pedro Martins, Diogo V Leal, Otávio T Nóbrega, Heitor S Ribeiro, João L Viana
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引用次数: 0
Corrigendum to "Obesity and risk of post-operative pneumonia among older adult patients with hip fracture: An obesity paradox" [Clin Nutr ESPEN 68 (2025) 342-347]. “老年髋部骨折患者的肥胖与术后肺炎风险:肥胖悖论”[临床医学杂志,68(2025)342-347]。
IF 2.6 Q3 NUTRITION & DIETETICS Pub Date : 2026-04-01 Epub Date: 2026-01-09 DOI: 10.1016/j.clnesp.2025.102904
Masao Narita, Ryutaro Matsugaki, Keiji Muramatsu, Kiyohide Fushimi, Shinya Matsuda
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引用次数: 0
Malnutrition risk in hospitalized patients with diabetes mellitus: Prevalence and associated factors as assessed by Nutritional Risk Screening 2002 (NRS-2002) 糖尿病住院患者的营养不良风险:2002年营养风险筛查(NRS-2002)评估的患病率和相关因素
IF 2.6 Q3 NUTRITION & DIETETICS Pub Date : 2026-04-01 Epub Date: 2026-01-09 DOI: 10.1016/j.clnesp.2026.102910
Yanjun Chang , Wenxing Wang , Fengni Jin , Jianhua Li , Xi Wang , Jiazhen Zhang , Yarong Xie

Background and aims

Malnutrition is a common issue among hospitalized diabetic patients, often leading to poor outcomes. The Nutritional Risk Screening 2002 (NRS-2002) is a widely used tool for assessing nutritional risk, but its relevance to diabetic patients and correlation with clinical parameters are unclear. This study aims to assess the prevalence of nutritional risk in hospitalized diabetic patients using NRS-2002, explore its relationship with key clinical indicators, and identify independent factors influencing nutritional risk for better management strategies.

Methods

This single-center retrospective study included 329 diabetic inpatients from the Department of Endocrinology at Yuncheng Central Hospital, affiliated with Shanxi Medical University, between December 2022 and June 2025. Data from the Electronic Medical Record (EMR) and Laboratory Information System (LIS) covered demographics, clinical features, anthropometrics, laboratory parameters (nutritional markers, lipids, pancreatic enzymes, inflammatory and metabolic indicators), and comorbidities. Nutritional risk at admission was assessed using NRS-2002 (score ≥3). Associations with clinical indicators were analyzed using Spearman correlation and logistic regression to identify independent predictors.

Results

Of the 329 patients, 91 (27.7 %) were at nutritional risk. This group had longer hospital stays, a higher proportion of patients with diabetes duration <5 years, lower BMI, prealbumin, and albumin levels, and higher CRP and HbA1c levels. They also had increased infection and ketosis rates. NRS-2002 scores were positively correlated with ketosis (ρ = 0.468), HbA1c (ρ = 0.386), and infection (ρ = 0.236), and negatively correlated with prealbumin (ρ = −0.404), bicarbonate (ρ = −0.240), and BMI (ρ = −0.205). Multivariate logistic regression identified ketosis (OR = 3.714), HbA1c (OR = 1.265), prealbumin (OR = 0.990), and bicarbonate (OR = 0.896) as independent predictors of nutritional risk. The predictive model showed good performance with an AUC of 0.832.

Conclusion

The NRS-2002 tool effectively assesses nutritional risk in hospitalized diabetic patients, with significant correlations to metabolic issues, inflammation, and complications. Low prealbumin, low bicarbonate, high HbA1c, and ketosis were independent predictors of nutritional risk.
背景和目的:营养不良是住院糖尿病患者的常见问题,往往导致预后不良。营养风险筛查2002 (NRS-2002)是一种广泛使用的评估营养风险的工具,但其与糖尿病患者的相关性以及与临床参数的相关性尚不清楚。本研究旨在利用NRS-2002评估住院糖尿病患者营养风险的发生率,探讨其与关键临床指标的关系,找出影响营养风险的独立因素,以便制定更好的营养风险管理策略。方法:选取山西医科大学附属运城中心医院内分泌科于2022年12月至2025年6月住院的329例糖尿病患者为研究对象,进行单中心回顾性研究。来自电子病历(EMR)和实验室信息系统(LIS)的数据涵盖了人口统计学、临床特征、人体测量学、实验室参数(营养标志物、脂质、胰腺酶、炎症和代谢指标)以及合并症。采用NRS-2002评估入院时的营养风险(评分≥3)。采用Spearman相关和logistic回归分析与临床指标的相关性,以确定独立的预测因子。结果:329例患者中有91例(27.7%)存在营养风险。结论:NRS-2002工具可有效评估住院糖尿病患者的营养风险,与代谢问题、炎症和并发症有显著相关性。低前白蛋白、低碳酸氢盐、高糖化血红蛋白和酮症是营养风险的独立预测因子。
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引用次数: 0
Comment on "Dietary quality in mid-pregnancy and pubertal timing in offspring: A population-based cohort study". 《孕期中期饮食质量与后代青春期发育:一项基于人群的队列研究》
IF 2.6 Q3 NUTRITION & DIETETICS Pub Date : 2026-04-01 Epub Date: 2025-12-11 DOI: 10.1016/j.clnesp.2025.102880
S Dhanya Dedeepya, Vaishali Goel, Nivedita Nikhil Desai
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引用次数: 0
A two-sample Mendelian Randomization study on the causal relationship between obesity and breast cancer. 一项关于肥胖与乳腺癌因果关系的双样本孟德尔随机研究。
IF 2.6 Q3 NUTRITION & DIETETICS Pub Date : 2026-04-01 Epub Date: 2026-01-19 DOI: 10.1016/j.clnesp.2026.102925
Xinyi Chen, Xu Yan, Yingxuan Fu, Huaiyuan Zheng, Zhonggang Wu, Hanjun Ma, An Yan, Shibo Zhao

Background: The relationship between obesity and breast cancer risk remains complex and inconsistently observed in epidemiological studies due to potential confounding and reverse causation. Comprehensive Mendelian randomization analyses of multiple anthropometric traits, particularly central adiposity measures, and their stratified effects by estrogen receptor (ER) subtype are still lacking.

Methods: We conducted a two-sample MR study to assess the causal relationship between nine obesity-related traits (e.g., Body Mass Index (BMI), Waist circumference (WC), basal metabolic rate) and breast cancer risk, overall and by ER subtype. Genetic instruments were selected from large-scale GWAS summary data of European ancestry. FinnGen R12 served as the discovery cohort and IEU OpenGWAS as replication. We applied Inverse Variance Weighted (IVW) as the primary method, supplemented by five other MR approaches and extensive sensitivity analyses for heterogeneity, pleiotropy, and colocalization.

Results: Genetically predicted higher BMI and WC were significantly associated with reduced risk of overall breast cancer in the discovery cohort (BMI: OR = 0.89, 95 % CI: 0.83-0.95; WC: OR = 0.84, 95 % CI: 0.77-0.93). These inverse associations were particularly consistent and robust for ER + breast cancer across both discovery and replication datasets. No significant associations were found for the other seven anthropometric traits. Colocalanalysis suggested shared genetic variants for some associations. Sensitivity analyses confirmed the robustness of the findings against pleiotropy and heterogeneity.

Conclusion: This study provides robust genetic evidence that higher BMI and WC are inversely associated with breast cancer risk, especially ER + disease. These findings highlight the importance of considering adiposity type and tumor subtype in understanding breast cancer etiology and suggest distinct underlying mechanisms warranting further investigation. Importantly, these results do not support recommending weight gain for cancer prevention; rather, they underscore the need for balanced health strategies that consider multiple risk factors.

背景:肥胖与乳腺癌风险之间的关系仍然复杂,在流行病学研究中由于潜在的混淆和反向因果关系而观察到的关系不一致。多种人体测量特征,特别是中心肥胖测量,及其雌激素受体(ER)亚型的分层效应的综合孟德尔随机分析仍然缺乏。方法:我们进行了一项双样本磁共振研究,以评估9种肥胖相关特征(如体重指数(BMI)、腰围(WC)、基础代谢率)与乳腺癌风险之间的因果关系,包括总体和ER亚型。遗传工具选择自欧洲祖先的大规模GWAS汇总数据。FinnGen R12作为发现队列,IEU OpenGWAS作为复制队列。我们采用逆方差加权(IVW)作为主要方法,辅以其他五种MR方法,并对异质性、多效性和共定位进行广泛的敏感性分析。结果:在发现队列中,遗传预测的较高BMI和WC与总体乳腺癌风险降低显著相关(BMI: OR = 0.89, 95% CI: 0.83-0.95; WC: OR = 0.84, 95% CI: 0.77-0.93)。在发现和复制数据集中,这些负相关在ER +乳腺癌中尤其一致和强大。其他7个人体测量特征没有发现显著的关联。共地分析表明,某些关联存在共同的遗传变异。敏感性分析证实了研究结果对多效性和异质性的稳健性。结论:本研究提供了强有力的遗传学证据,表明较高的BMI和WC与乳腺癌风险呈负相关,尤其是ER +疾病。这些发现强调了考虑肥胖类型和肿瘤亚型在理解乳腺癌病因学中的重要性,并提出了值得进一步研究的独特潜在机制。重要的是,这些结果并不支持建议通过增加体重来预防癌症;相反,它们强调需要考虑多种风险因素的平衡卫生战略。
{"title":"A two-sample Mendelian Randomization study on the causal relationship between obesity and breast cancer.","authors":"Xinyi Chen, Xu Yan, Yingxuan Fu, Huaiyuan Zheng, Zhonggang Wu, Hanjun Ma, An Yan, Shibo Zhao","doi":"10.1016/j.clnesp.2026.102925","DOIUrl":"https://doi.org/10.1016/j.clnesp.2026.102925","url":null,"abstract":"<p><strong>Background: </strong>The relationship between obesity and breast cancer risk remains complex and inconsistently observed in epidemiological studies due to potential confounding and reverse causation. Comprehensive Mendelian randomization analyses of multiple anthropometric traits, particularly central adiposity measures, and their stratified effects by estrogen receptor (ER) subtype are still lacking.</p><p><strong>Methods: </strong>We conducted a two-sample MR study to assess the causal relationship between nine obesity-related traits (e.g., Body Mass Index (BMI), Waist circumference (WC), basal metabolic rate) and breast cancer risk, overall and by ER subtype. Genetic instruments were selected from large-scale GWAS summary data of European ancestry. FinnGen R12 served as the discovery cohort and IEU OpenGWAS as replication. We applied Inverse Variance Weighted (IVW) as the primary method, supplemented by five other MR approaches and extensive sensitivity analyses for heterogeneity, pleiotropy, and colocalization.</p><p><strong>Results: </strong>Genetically predicted higher BMI and WC were significantly associated with reduced risk of overall breast cancer in the discovery cohort (BMI: OR = 0.89, 95 % CI: 0.83-0.95; WC: OR = 0.84, 95 % CI: 0.77-0.93). These inverse associations were particularly consistent and robust for ER + breast cancer across both discovery and replication datasets. No significant associations were found for the other seven anthropometric traits. Colocalanalysis suggested shared genetic variants for some associations. Sensitivity analyses confirmed the robustness of the findings against pleiotropy and heterogeneity.</p><p><strong>Conclusion: </strong>This study provides robust genetic evidence that higher BMI and WC are inversely associated with breast cancer risk, especially ER + disease. These findings highlight the importance of considering adiposity type and tumor subtype in understanding breast cancer etiology and suggest distinct underlying mechanisms warranting further investigation. Importantly, these results do not support recommending weight gain for cancer prevention; rather, they underscore the need for balanced health strategies that consider multiple risk factors.</p>","PeriodicalId":10352,"journal":{"name":"Clinical nutrition ESPEN","volume":"72 ","pages":"102925"},"PeriodicalIF":2.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147497592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The effect of transcranial direct current stimulation and nutritional counseling therapy on attentional bias to food cues: A randomized clinical trial 经颅直流电刺激和营养咨询治疗对食物线索注意偏倚的影响:一项随机临床试验。
IF 2.6 Q3 NUTRITION & DIETETICS Pub Date : 2026-04-01 Epub Date: 2025-12-26 DOI: 10.1016/j.clnesp.2025.102886
Jessica Lorenzzi Elkfury , Luciana C. Antunes , Gibson Weydmann , Lizia Nardi Menegassi , Liciane Fernandes Medeiros , Tiago Madeira Cardinal , Betina Franceschini Tocchetto , Iraci L.S. Torres , Felipe Fregni , Lisiane Bizarro , Wolnei Caumo

Background & aims

This study investigated the effects of transcranial direct current stimulation (tDCS) and nutritional counseling therapy (NCT) on attentional bias (AB) in binge eating disorder.

Methods

This study was designed as a pilot randomized, factorial, blind, parallel-controlled clinical trial. Forty women were allocated to one of four groups: active tDCS (a-tDCS), a-tDCS + NCT, s-tDCS (sham tDCS) + NCT, NCT. The 28 home-based tDCS sessions were applied to the DLPFC (anode/right and cathode/left). The outcome was the delta values (pre- and post-treatment AB scores). Each AB score was calculated based on the stimulus onset asynchrony (SOA) at which stimuli were presented (100, 500, and 2000 ms).

Results

Mixed analyses of variance revealed a significant interaction between treatment and SOA (p = 0.035). The a-tDCS with NCT group showed a decrease in AB at an SOA of 500 ms. This decrease significantly differed from the increase observed in the s-tDCS with NCT group for the same SOA (p = 0.027). The a-tDCS with NCT group showed an increase in AB at an SOA of 2000 ms, which differed significantly from the decrease observed at the same SOA in the a-tDCS group (p = 0.032).

Conclusions

The combined therapy (a-tDCS with NCT) decreased AB at the pre-conscious orientation of attention and increased it when conscious orientation was possible.

Trial registration

ClinicalTrials.gov: NCT 04226794. Registered on July 2, 2019.
背景与目的:本研究探讨经颅直流电刺激(tDCS)和营养咨询治疗(NCT)对暴食症患者注意偏置(AB)的影响。方法:本研究采用随机、盲法、平行对照临床试验。40名女性被分为四组:活动tDCS (a-tDCS)、a-tDCS + NCT、s-tDCS(假tDCS) + NCT、NCT。28个基于家庭的tDCS会话应用于DLPFC(阳极/右和阴极/左)。结果是δ值(治疗前和治疗后的AB评分)。每个AB分数是根据刺激出现时(100ms、500ms和2000ms)的刺激发生异步性(SOA)来计算的。结果:混合方差分析显示治疗与SOA之间有显著的相互作用(p = 0.035)。a- tdcs加NCT组在SOA 500 ms时AB下降。这种下降明显不同于s-tDCS与NCT组在相同SOA下观察到的增加(p = 0.027)。具有NCT的a-tDCS组在SOA为2000 ms时AB增加,这与a-tDCS组在相同SOA下观察到的AB减少有显著差异(p = 0.032)。结论:a-tDCS与NCT联合治疗可降低注意前意识取向时的AB值,并可使注意前意识取向时AB值升高。试验注册:ClinicalTrials.gov: NCT04226794。2019年7月2日注册。
{"title":"The effect of transcranial direct current stimulation and nutritional counseling therapy on attentional bias to food cues: A randomized clinical trial","authors":"Jessica Lorenzzi Elkfury ,&nbsp;Luciana C. Antunes ,&nbsp;Gibson Weydmann ,&nbsp;Lizia Nardi Menegassi ,&nbsp;Liciane Fernandes Medeiros ,&nbsp;Tiago Madeira Cardinal ,&nbsp;Betina Franceschini Tocchetto ,&nbsp;Iraci L.S. Torres ,&nbsp;Felipe Fregni ,&nbsp;Lisiane Bizarro ,&nbsp;Wolnei Caumo","doi":"10.1016/j.clnesp.2025.102886","DOIUrl":"10.1016/j.clnesp.2025.102886","url":null,"abstract":"<div><h3>Background &amp; aims</h3><div>This study investigated the effects of transcranial direct current stimulation (tDCS) and nutritional counseling therapy (NCT) on attentional bias (AB) in binge eating disorder.</div></div><div><h3>Methods</h3><div>This study was designed as a pilot randomized, factorial, blind, parallel-controlled clinical trial. Forty women were allocated to one of four groups: active tDCS (a-tDCS), a-tDCS + NCT, s-tDCS (sham tDCS) + NCT, NCT. The 28 home-based tDCS sessions were applied to the DLPFC (anode/right and cathode/left). The outcome was the delta values (pre- and post-treatment AB scores). Each AB score was calculated based on the stimulus onset asynchrony (SOA) at which stimuli were presented (100, 500, and 2000 ms).</div></div><div><h3>Results</h3><div>Mixed analyses of variance revealed a significant interaction between treatment and SOA (p = 0.035). The a-tDCS with NCT group showed a decrease in AB at an SOA of 500 ms. This decrease significantly differed from the increase observed in the s-tDCS with NCT group for the same SOA (p = 0.027). The a-tDCS with NCT group showed an increase in AB at an SOA of 2000 ms, which differed significantly from the decrease observed at the same SOA in the a-tDCS group (p = 0.032).</div></div><div><h3>Conclusions</h3><div>The combined therapy (a-tDCS with NCT) decreased AB at the pre-conscious orientation of attention and increased it when conscious orientation was possible.</div></div><div><h3>Trial registration</h3><div>ClinicalTrials.gov: NCT 04226794. Registered on July 2, 2019.</div></div>","PeriodicalId":10352,"journal":{"name":"Clinical nutrition ESPEN","volume":"72 ","pages":"Article 102886"},"PeriodicalIF":2.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145849100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Interpretable machine learning model for predicting refeeding syndrome after colorectal cancer surgery 预测结直肠癌术后再进食综合征的可解释机器学习模型。
IF 2.6 Q3 NUTRITION & DIETETICS Pub Date : 2026-04-01 Epub Date: 2026-01-24 DOI: 10.1016/j.clnesp.2026.102946
Xing Jin , Chanjie Cui , Fangling Xu , Zhi Lin , Jinxin Wang

Objective

Refeeding syndrome (RFS) is a common yet frequently overlooked complication during postoperative nutritional support in patients undergoing colorectal cancer surgery. This study aimed to develop an explainable machine learning model for early risk prediction of RFS and to evaluate its predictive performance and clinical utility.

Methods

A total of 446 hospitalized patients who underwent curative colorectal cancer surgery were retrospectively included and randomly divided into a training set (n = 312) and a validation set (n = 134) in a 7:3 ratio. Based on clinical variables including preoperative nutritional status, electrolyte levels, and postoperative recovery indicators, four predictive models were constructed: logistic regression, random forest (RF), support vector machine (SVM), and extreme gradient boosting (XGBoost). Their predictive performance in the validation set was compared using receiver operating characteristic (ROC) curves, calibration curves, and decision curve analysis (DCA). The XGBoost model was further interpreted using SHapley Additive Explanations (SHAP) for both global and individual-level explanations.

Results

In both the training and validation sets, the RFS group had significantly higher proportions of preoperative weight loss and comorbid diabetes than the non-RFS group (both P < 0.05). They also exhibited significantly lower preoperative serum phosphate and albumin levels, and longer postoperative recovery times for bowel sounds and first flatus (all P < 0.05). Among the models, XGBoost demonstrated the best performance in the validation set with an AUC of 0.872 (95 % CI: 0.805–0.925) and the lowest Brier score (0.113), offering the greatest net clinical benefit within the risk threshold range of 0.15–0.60. SHAP global interpretation revealed that preoperative serum phosphate, time to bowel sound recovery, preoperative albumin level, and time to first flatus were the most influential features. Low preoperative phosphate, prolonged bowel sound recovery, and low albumin levels substantially increased RFS risk. At the individual level, SHAP force plots visualized the personalized contribution paths of each feature, aiding in the identification of high-risk patients.

Conclusion

The XGBoost model combined with SHAP interpretation enables accurate and interpretable prediction of postoperative RFS risk. This approach may support individualized nutritional management strategies in patients following colorectal cancer surgery.
目的:再进食综合征(RFS)是结直肠癌手术患者术后营养支持中常见但常被忽视的并发症。本研究旨在开发一种可解释的机器学习模型,用于RFS的早期风险预测,并评估其预测性能和临床应用。方法:回顾性纳入446例接受治愈性结直肠癌手术的住院患者,按7:3的比例随机分为训练组(n = 312)和验证组(n = 134)。基于术前营养状况、电解质水平、术后恢复指标等临床变量,构建logistic回归、随机森林(RF)、支持向量机(SVM)、极限梯度增强(XGBoost) 4种预测模型。采用受试者工作特征(ROC)曲线、校准曲线和决策曲线分析(DCA)对其在验证集中的预测性能进行比较。XGBoost模型使用SHapley加性解释(SHAP)对全局和个人层面的解释进行了进一步解释。结果:在训练组和验证组中,RFS组术前体重减轻和合并糖尿病的比例均显著高于非RFS组(P < 0.05)。术前血清磷酸盐和白蛋白水平明显降低,术后肠音和首次放屁恢复时间较长(均P < 0.05)。其中,XGBoost在验证集中表现最佳,AUC为0.872 (95% CI: 0.805-0.925), Brier评分最低(0.113),在0.15-0.60的风险阈值范围内提供最大的净临床效益。SHAP全局解释显示,术前血清磷酸盐、肠声恢复时间、术前白蛋白水平和首次放屁时间是最具影响的特征。术前低磷酸盐、肠道健康恢复时间延长和低白蛋白水平大大增加了RFS的风险。在个体层面,SHAP力图将每个特征的个性化贡献路径可视化,有助于识别高危患者。结论:结合SHAP解释的XGBoost模型能够准确、可解释地预测术后RFS风险。该方法可能支持结直肠癌手术后患者的个体化营养管理策略。
{"title":"Interpretable machine learning model for predicting refeeding syndrome after colorectal cancer surgery","authors":"Xing Jin ,&nbsp;Chanjie Cui ,&nbsp;Fangling Xu ,&nbsp;Zhi Lin ,&nbsp;Jinxin Wang","doi":"10.1016/j.clnesp.2026.102946","DOIUrl":"10.1016/j.clnesp.2026.102946","url":null,"abstract":"<div><h3>Objective</h3><div>Refeeding syndrome (RFS) is a common yet frequently overlooked complication during postoperative nutritional support in patients undergoing colorectal cancer surgery. This study aimed to develop an explainable machine learning model for early risk prediction of RFS and to evaluate its predictive performance and clinical utility.</div></div><div><h3>Methods</h3><div>A total of 446 hospitalized patients who underwent curative colorectal cancer surgery were retrospectively included and randomly divided into a training set (<em>n</em> = 312) and a validation set (<em>n</em> = 134) in a 7:3 ratio. Based on clinical variables including preoperative nutritional status, electrolyte levels, and postoperative recovery indicators, four predictive models were constructed: logistic regression, random forest (RF), support vector machine (SVM), and extreme gradient boosting (XGBoost). Their predictive performance in the validation set was compared using receiver operating characteristic (ROC) curves, calibration curves, and decision curve analysis (DCA). The XGBoost model was further interpreted using SHapley Additive Explanations (SHAP) for both global and individual-level explanations.</div></div><div><h3>Results</h3><div>In both the training and validation sets, the RFS group had significantly higher proportions of preoperative weight loss and comorbid diabetes than the non-RFS group (both <em>P</em> &lt; 0.05). They also exhibited significantly lower preoperative serum phosphate and albumin levels, and longer postoperative recovery times for bowel sounds and first flatus (all <em>P</em> &lt; 0.05). Among the models, XGBoost demonstrated the best performance in the validation set with an AUC of 0.872 (95 % CI: 0.805–0.925) and the lowest Brier score (0.113), offering the greatest net clinical benefit within the risk threshold range of 0.15–0.60. SHAP global interpretation revealed that preoperative serum phosphate, time to bowel sound recovery, preoperative albumin level, and time to first flatus were the most influential features. Low preoperative phosphate, prolonged bowel sound recovery, and low albumin levels substantially increased RFS risk. At the individual level, SHAP force plots visualized the personalized contribution paths of each feature, aiding in the identification of high-risk patients.</div></div><div><h3>Conclusion</h3><div>The XGBoost model combined with SHAP interpretation enables accurate and interpretable prediction of postoperative RFS risk. This approach may support individualized nutritional management strategies in patients following colorectal cancer surgery.</div></div>","PeriodicalId":10352,"journal":{"name":"Clinical nutrition ESPEN","volume":"72 ","pages":"Article 102946"},"PeriodicalIF":2.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146050666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Association between phase angle and one-year heart failure rehospitalization and all-cause mortality in patients with heart failure 心衰患者相位角与一年心衰再住院和全因死亡率的关系。
IF 2.6 Q3 NUTRITION & DIETETICS Pub Date : 2026-04-01 Epub Date: 2026-01-17 DOI: 10.1016/j.clnesp.2026.102928
Masaya Hori , Koya Takino , Takuji Adachi , Yoji Kuze , Takashi Nagai , Nao Ichiba , Kenya Usui , Tsuyoshi Tanabe , Misuzu Ide , Masayasu Nakagawa , Hitoshi Matsuo

Background & aims

Phase angle (PhA) reflects cellular health and nutritional status. Although PhA has been linked to mortality in various populations, its prognostic value for heart failure (HF), especially rehospitalization, remains unclear. This study investigated the association between PhA and the composite outcome of HF rehospitalization and all-cause mortality after discharge in patients hospitalized for acute HF.

Methods

Patients hospitalized with HF who underwent rehabilitation during hospitalization. The primary outcome was a composite of HF rehospitalization and all-cause mortality within one year. Associations were evaluated with multivariate Cox proportional hazards models. Receiver operating characteristic analysis determined the optimal PhA cut-off. The cumulative incidence of the composite outcome and all-cause mortality were estimated using Kaplan–Meier analysis with log-rank tests. For HF rehospitalization, the cumulative incidence was calculated using Gray's test, with death as a competing risk.

Results

The one-year incidence of the composite outcome was 23.3 % (n = 97) among the 417 patients. In multivariate models, PhA independently predicted the composite outcome (hazard ratio: 0.74; 95 % confidence interval: 0.55–0.99, p = 0.048). The optimal PhA cut-off was 3.8. Patients with PhA <3.8 had significantly higher rates of HF rehospitalization (p = 0.033), composite outcomes (p = 0.001), and all-cause mortality (p = 0.002).

Conclusions

In patients with HF, PhA assessed during hospitalization was significantly associated with HF rehospitalization and all-cause mortality within one year. These findings support PhA as a useful biomarker for prognostic assessment in clinical practice.
背景与目的:相位角(PhA)反映细胞的健康和营养状况。尽管PhA与各种人群的死亡率有关,但其对心力衰竭(HF)的预后价值,特别是再住院,仍不清楚。本研究探讨了PhA与急性HF住院患者HF再住院和出院后全因死亡率的综合结局之间的关系。方法:住院期间接受康复治疗的心衰患者。主要终点是一年内HF再住院和全因死亡率的综合结果。采用多变量Cox比例风险模型评估相关性。接收机工作特性分析确定了最佳PhA截止值。综合结果的累积发生率和全因死亡率使用Kaplan-Meier分析和log-rank检验进行估计。对于心衰再住院,使用Gray试验计算累积发病率,死亡作为竞争风险。结果:417例患者中,复合结局的1年发生率为23.3% (n = 97)。在多变量模型中,PhA独立预测复合结局(风险比:0.73;95%置信区间:0.53-0.99,p = 0.042)。最佳PhA临界值为3.8。结论:在HF患者中,住院期间评估的PhA与HF再住院和一年内全因死亡率显著相关。这些发现支持PhA在临床实践中作为一种有用的预后评估生物标志物。
{"title":"Association between phase angle and one-year heart failure rehospitalization and all-cause mortality in patients with heart failure","authors":"Masaya Hori ,&nbsp;Koya Takino ,&nbsp;Takuji Adachi ,&nbsp;Yoji Kuze ,&nbsp;Takashi Nagai ,&nbsp;Nao Ichiba ,&nbsp;Kenya Usui ,&nbsp;Tsuyoshi Tanabe ,&nbsp;Misuzu Ide ,&nbsp;Masayasu Nakagawa ,&nbsp;Hitoshi Matsuo","doi":"10.1016/j.clnesp.2026.102928","DOIUrl":"10.1016/j.clnesp.2026.102928","url":null,"abstract":"<div><h3>Background &amp; aims</h3><div>Phase angle (PhA) reflects cellular health and nutritional status. Although PhA has been linked to mortality in various populations, its prognostic value for heart failure (HF), especially rehospitalization, remains unclear. This study investigated the association between PhA and the composite outcome of HF rehospitalization and all-cause mortality after discharge in patients hospitalized for acute HF.</div></div><div><h3>Methods</h3><div>Patients hospitalized with HF who underwent rehabilitation during hospitalization. The primary outcome was a composite of HF rehospitalization and all-cause mortality within one year. Associations were evaluated with multivariate Cox proportional hazards models. Receiver operating characteristic analysis determined the optimal PhA cut-off. The cumulative incidence of the composite outcome and all-cause mortality were estimated using Kaplan–Meier analysis with log-rank tests. For HF rehospitalization, the cumulative incidence was calculated using Gray's test, with death as a competing risk.</div></div><div><h3>Results</h3><div>The one-year incidence of the composite outcome was 23.3 % (n = 97) among the 417 patients. In multivariate models, PhA independently predicted the composite outcome (hazard ratio: 0.74; 95 % confidence interval: 0.55–0.99, <em>p</em> = 0.048). The optimal PhA cut-off was 3.8. Patients with PhA &lt;3.8 had significantly higher rates of HF rehospitalization (<em>p</em> = 0.033), composite outcomes (<em>p</em> = 0.001), and all-cause mortality (<em>p</em> = 0.002).</div></div><div><h3>Conclusions</h3><div>In patients with HF, PhA assessed during hospitalization was significantly associated with HF rehospitalization and all-cause mortality within one year. These findings support PhA as a useful biomarker for prognostic assessment in clinical practice.</div></div>","PeriodicalId":10352,"journal":{"name":"Clinical nutrition ESPEN","volume":"72 ","pages":"Article 102928"},"PeriodicalIF":2.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146003275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The association between body water compartments and muscle mechanical properties: A correlational study using bioimpedance and myotonometry 身体水室和肌肉力学特性之间的关系:一项使用生物阻抗和肌张力测量的相关研究。
IF 2.6 Q3 NUTRITION & DIETETICS Pub Date : 2026-04-01 Epub Date: 2026-01-17 DOI: 10.1016/j.clnesp.2026.102927
Martyna Sochor, Marcelina Mrowiec, Dawid Bączkowicz

Background and aims

Water plays a vital role in muscle function, and its distribution between intracellular (ICW) and extracellular (ECW) compartments serves as a key indicator of muscle quality. Bioelectrical impedance analysis (BIA) quantifies body water (BW), while myotonometry measures muscle mechanical properties; however, the relationship between these measures remains underexplored. This study aimed to assess the association between BW compartments and the resting mechanical properties of lower limb muscles.

Methods

A total of 158 healthy adults (97 men, 61 women; mean age 20.8 years) participated. BW compartments, including total body water (TBW), ICW, and ECW, were measured using a multi-frequency body composition analyser (TANITA MC-780 MA). A MyotonPRO® device assessed the mechanical properties (e.g. tone, stiffness) in the tibialis anterior, peroneus longus, and gastrocnemius muscles. Spearman's rank correlation and multiple linear regression models were used to analyse the relationships between BIA and myotonometry.

Results

The analysis revealed a consistent bipolar pattern of associations. Absolute hydration volumes (TBW, ICW, ECW expressed in kilograms) were positively correlated with muscle tone and stiffness, with correlations ranging from weak to high (r ≈ 0.30–0.70, p < 0.001). ICW was the strongest determinant. In contrast, relative ECW (expressed as a percentage) showed moderate negative correlations with tone and stiffness. This pattern was consistent across all muscles and between limbs.

Conclusions

In healthy young adults, the resting mechanical properties of lower limb muscles are significantly associated not only with TBW but, more importantly, with its compartmental distribution. Higher ICW corresponds to greater muscle tone and stiffness, whereas a high ECW proportion is linked to lower values.
背景与目的:水在肌肉功能中起着至关重要的作用,其在细胞内(ICW)和细胞外(ECW)间的分布是肌肉质量的关键指标。生物电阻抗分析(BIA)量化身体水分(BW),而肌张力测量测量肌肉的力学性能;然而,这些措施之间的关系仍未得到充分探讨。本研究旨在评估BW隔室与下肢肌肉静息力学特性之间的关系。方法:158名健康成人(男性97人,女性61人,平均年龄20.8岁)参与。使用多频身体成分分析仪(TANITA MC-780 MA)测量BW隔间,包括总身体水分(TBW), ICW和ECW。MyotonPRO®设备评估胫骨前肌、腓骨长肌和腓肠肌的力学特性(如张力、僵硬度)。采用Spearman秩相关和多元线性回归模型分析BIA与肌张力测量的关系。结果:分析揭示了一个一致的双相模式的关联。绝对水合体积(TBW、ICW、ECW,单位为kg)与肌肉张力和僵硬度呈正相关,相关性由弱到高(r≈0.30-0.70,p < 0.001)。ICW是最强的决定因素。相比之下,相对ECW(以百分比表示)与音调和僵硬度呈中度负相关。这种模式在所有肌肉和四肢之间都是一致的。结论:在健康的年轻人中,下肢肌肉的静息力学特性不仅与TBW显著相关,更重要的是与TBW的室间分布有关。较高的ICW对应较大的肌肉张力和僵硬,而较高的ECW比例与较低的值相关。
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Clinical nutrition ESPEN
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