Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 44
Filtrar
Mais filtros

Base de dados
País/Região como assunto
Tipo de documento
Intervalo de ano de publicação
1.
Eur J Nutr ; 63(3): 927-938, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38240774

RESUMO

PURPOSE: In 2019, the Global Leadership Initiative on Malnutrition (GLIM) suggested a 2-step diagnostic format for malnutrition including screening and diagnosis. Prospective validation and feasibility studies, using the complete set of the five GLIM criteria, are needed. The aims of this study were to determine the prevalence of malnutrition, and investigate how the prevalence varied with mode of screening. Furthermore, we assessed the feasibility of GLIM in geriatric patients. METHODS: Consecutive patients from two acute geriatric wards were included. For screening risk of malnutrition, the Mini Nutritional Assessment-Short Form (MNA-SF) or Malnutrition Screening Tool (MST) were used. In accordance with GLIM, a combination of phenotypic and etiologic criteria were required for the diagnosis of malnutrition. Feasibility was determined based on % data completeness, and above 80% completeness was considered feasible. RESULTS: One hundred patients (mean age 82 years, 58% women) were included. After screening with MNA-SF malnutrition was confirmed by GLIM in 51%, as compared with 35% after screening with MST (p = 0.039). Corresponding prevalence was 58% with no prior screening. Using hand grip strength as a supportive measure for reduced muscle mass, 69% of the patients were malnourished. Feasibility varied between 70 and 100% for the different GLIM criteria, with calf circumference as a proxy for reduced muscle mass having the lowest feasibility. CONCLUSION: In acute geriatric patients, the prevalence of malnutrition according to GLIM varied depending on the screening tool used. In this setting, GLIM appears feasible, besides for the criterion of reduced muscle mass.


Assuntos
Força da Mão , Desnutrição , Humanos , Feminino , Idoso , Idoso de 80 Anos ou mais , Masculino , Estudos Transversais , Estudos de Viabilidade , Liderança , Prevalência , Desnutrição/diagnóstico , Desnutrição/epidemiologia , Avaliação Nutricional , Estado Nutricional
2.
BMC Cancer ; 17(1): 83, 2017 01 30.
Artigo em Inglês | MEDLINE | ID: mdl-28137255

RESUMO

BACKGROUND: Colorectal cancer survivors are not only at risk for recurrent disease but also at increased risk of comorbidities such as other cancers, cardiovascular disease, diabetes, hypertension and functional decline. In this trial, we aim at investigating whether a diet in accordance with the Norwegian food-based dietary guidelines and focusing at dampening inflammation and oxidative stress will improve long-term disease outcomes and survival in colorectal cancer patients. METHODS/DESIGN: This paper presents the study protocol of the Norwegian Dietary Guidelines and Colorectal Cancer Survival study. Men and women aged 50-80 years diagnosed with primary invasive colorectal cancer (Stage I-III) are invited to this randomized controlled, parallel two-arm trial 2-9 months after curative surgery. The intervention group (n = 250) receives an intensive dietary intervention lasting for 12 months and a subsequent maintenance intervention for 14 years. The control group (n = 250) receives no dietary intervention other than standard clinical care. Both groups are offered equal general advice of physical activity. Patients are followed-up at 6 months and 1, 3, 5, 7, 10 and 15 years after baseline. The study center is located at the Department of Nutrition, University of Oslo, and patients are recruited from two hospitals within the South-Eastern Norway Regional Health Authority. Primary outcomes are disease-free survival and overall survival. Secondary outcomes are time to recurrence, cardiovascular disease-free survival, compliance to the dietary recommendations and the effects of the intervention on new comorbidities, intermediate biomarkers, nutrition status, physical activity, physical function and quality of life. DISCUSSION: The current study is designed to gain a better understanding of the role of a healthy diet aimed at dampening inflammation and oxidative stress on long-term disease outcomes and survival in colorectal cancer patients. Since previous research on the role of diet for colorectal cancer survivors is limited, the study may be of great importance for this cancer population. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT01570010 .


Assuntos
Neoplasias Colorretais/dietoterapia , Recidiva Local de Neoplasia/prevenção & controle , Idoso , Idoso de 80 Anos ou mais , Neoplasias Colorretais/mortalidade , Neoplasias Colorretais/patologia , Intervalo Livre de Doença , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Multicêntricos como Assunto , Recidiva Local de Neoplasia/mortalidade , Noruega , Estresse Oxidativo , Ensaios Clínicos Controlados Aleatórios como Assunto , Projetos de Pesquisa , Resultado do Tratamento
3.
J Immunol ; 195(6): 2601-11, 2015 Sep 15.
Artigo em Inglês | MEDLINE | ID: mdl-26276871

RESUMO

In the present study, we aimed at identifying the mechanisms whereby the vitamin A metabolite all-trans retinoic acid (RA) promotes the formation of plasma cells upon stimulation of B cells via the innate immunity receptors TLR9 and RP105. Most often, differentiation of B cells involves the sequential events of class switch recombination and somatic hypermutations characteristic of germinal center reactions, followed by plasma cell formation. By studying the regulatory networks known to drive these reactions, we revealed that RA enhances the expression of the plasma cell-generating transcription factors IFN regulatory factor (IRF)4 and Blimp1, and paradoxically also activation-induced deaminase (AID) involved in somatic hypermutations/class switch recombination, in primary human B cells. IRF4 was identified as a particularly important protein involved in the RA-mediated production of IgG in TLR9/RP105-stimulated B cells. Based on kinetic studies, we present a model suggesting that the initial induction of IRF4 by RA favors AID expression. According to this model, the higher level of IRF4 that eventually arises results in sustained elevated levels of Blimp1. Regarded as a master regulator of plasma cell development, Blimp1 will in turn suppress AID expression and drive the formation of IgG-secreting plasma cells. Notably, we demonstrated IRF4 to be deregulated in B cells from common variable immunodeficiency patients, contributing to the observed aberrant expression of AID in these patients. Taken together, the present study both provides new insight into the mechanisms whereby RA induces differentiation of B cells and identifies IRF4 as a key to understand the defective functions of B cells in common variable immunodeficiency patients.


Assuntos
Linfócitos B/citologia , Imunodeficiência de Variável Comum/imunologia , Fatores Reguladores de Interferon/genética , Plasmócitos/citologia , Tretinoína/farmacologia , Adulto , Idoso , Antígenos CD/imunologia , Linfócitos B/imunologia , Sequência de Bases , Diferenciação Celular/imunologia , Imunodeficiência de Variável Comum/genética , Citidina Desaminase/biossíntese , Feminino , Regulação da Expressão Gênica/imunologia , Centro Germinativo/citologia , Centro Germinativo/imunologia , Humanos , Switching de Imunoglobulina/genética , Switching de Imunoglobulina/imunologia , Imunoglobulina G/biossíntese , Imunoglobulina G/imunologia , Fatores Reguladores de Interferon/biossíntese , Ativação Linfocitária/imunologia , Masculino , Pessoa de Meia-Idade , Dados de Sequência Molecular , Plasmócitos/imunologia , Fator 1 de Ligação ao Domínio I Regulador Positivo , Interferência de RNA , RNA Interferente Pequeno , Proteínas Repressoras/biossíntese , Proteínas Repressoras/genética , Hipermutação Somática de Imunoglobulina/genética , Hipermutação Somática de Imunoglobulina/imunologia , Receptor Toll-Like 9/imunologia
4.
Nutr Cancer ; 67(2): 305-15, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25664890

RESUMO

Tomatoes may protect against prostate cancer development, possibly through targeting signaling pathways such as nuclear factor-κB (NF-κB). We investigated whether tomato paste could modulate NF-κB activity and cancer-related gene expression in human derived prostate cancer cells (PC3) and PC3 xenografts. PC3-cells were stably transduced with an NF-κB-luciferase construct, and treated with tomato extracts or vehicle control. Nude mice bearing PC3 xenografts were fed a Western-like diet with or without 10% tomato paste for 6.5 wk. The tomato diet significantly inhibited TNFα stimulated NF-κB activity in cultured PC3 cells, and modulated the expression of genes associated with inflammation, apoptosis, and cancer progression. Accumulation of lycopene occurred in liver, xenografts, and serum of mice fed tomato diet. Tomato paste in the diet did not affect tumor size in mice; however, there was a trend toward inhibition of NF-κB activity in the xenografts. The effect of tomato on gene expression was most prominent in the xenograft microenvironment, where among others NFKB2, STAT3, and STAT6 showed higher expression levels after tomato treatment. Our findings support biological activity of tomatoes in cancer-related inflammation.


Assuntos
NF-kappa B/efeitos dos fármacos , Extratos Vegetais/farmacologia , Neoplasias da Próstata/metabolismo , RNA Mensageiro/efeitos dos fármacos , Solanum lycopersicum/química , Animais , Carotenoides/análise , Carotenoides/metabolismo , Carotenoides/farmacologia , Linhagem Celular Tumoral , Expressão Gênica , Perfilação da Expressão Gênica , Xenoenxertos/efeitos dos fármacos , Humanos , Licopeno , Masculino , Camundongos , Camundongos Nus , NF-kappa B/genética , NF-kappa B/metabolismo , Oxirredução , Neoplasias da Próstata/genética , Neoplasias da Próstata/patologia , RNA Mensageiro/metabolismo , Fator de Transcrição STAT3/efeitos dos fármacos , Fator de Transcrição STAT6/efeitos dos fármacos , Transdução de Sinais/efeitos dos fármacos , Microambiente Tumoral/efeitos dos fármacos , Microambiente Tumoral/genética , Fator de Necrose Tumoral alfa/farmacologia
5.
Br J Nutr ; 114(7): 1054-63, 2015 Oct 14.
Artigo em Inglês | MEDLINE | ID: mdl-26227795

RESUMO

Intake of fruits and berries may lower blood pressure (BP), most probably due to the high content of polyphenols. In the present study, we tested whether consumption of two polyphenol-rich juices could lower BP. In a randomised, double-blinded, placebo-controlled trial of 12 weeks, 134 healthy individuals, aged 50-70 years, with high normal range BP (130/85-139/89 mmHg, seventy-two subjects) or stage 1-2 hypertension (140/90-179/109 mmHg, sixty-two subjects), were included. They consumed 500 ml/d of one of either (1) a commercially available polyphenol-rich juice based on red grapes, cherries, chokeberries and bilberries; (2) a juice similar to (1) but enriched with polyphenol-rich extracts from blackcurrant press-residue or (3) a placebo juice (polyphenol contents 245·5, 305·2 and 76 mg/100 g, respectively). Resting BP was measured three times, with a 1 min interval, at baseline and after 6 and 12 weeks of intervention. Systolic BP significantly reduced over time (6 and 12 weeks, respectively) in the pooled juice group compared with the placebo group in the first of the three measurements, both for the whole study group (6·9 and 3·4 mmHg; P= 0·01) and even more pronounced in the hypertensive subjects when analysed separately (7·3 and 6·8 mmHg; P= 0·04). The variation in the BP measurements was significantly reduced in the pooled juice group compared with the placebo group (1·4 and 1·7 mmHg; P= 0·03). In conclusion, the present findings suggest that polyphenol-rich berry juice may contribute to a BP- and BP variability lowering effect, being more pronounced in hypertensive than in normotensive subjects.


Assuntos
Pressão Sanguínea/efeitos dos fármacos , Sucos de Frutas e Vegetais/análise , Hipertensão/tratamento farmacológico , Polifenóis/farmacologia , Idoso , Antioxidantes/farmacologia , Método Duplo-Cego , Feminino , Frutas/química , Humanos , Masculino , Pessoa de Meia-Idade , Noruega , Photinia/química , Prunus/química , Vaccinium myrtillus/química , Vitis/química
6.
J Physiol ; 592(8): 1887-901, 2014 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-24492839

RESUMO

In this double-blind, randomised, controlled trial, we investigated the effects of vitamin C and E supplementation on endurance training adaptations in humans. Fifty-four young men and women were randomly allocated to receive either 1000 mg of vitamin C and 235 mg of vitamin E or a placebo daily for 11 weeks. During supplementation, the participants completed an endurance training programme consisting of three to four sessions per week (primarily of running), divided into high-intensity interval sessions [4-6 × 4-6 min; >90% of maximal heart rate (HRmax)] and steady state continuous sessions (30-60 min; 70-90% of HRmax). Maximal oxygen uptake (VO2 max ), submaximal running and a 20 m shuttle run test were assessed and blood samples and muscle biopsies were collected, before and after the intervention. Participants in the vitamin C and E group increased their VO2 max (mean ± s.d.: 8 ± 5%) and performance in the 20 m shuttle test (10 ± 11%) to the same degree as those in the placebo group (mean ± s.d.: 8 ± 5% and 14 ± 17%, respectively). However, the mitochondrial marker cytochrome c oxidase subunit IV (COX4) and cytosolic peroxisome proliferator-activated receptor-γ coactivator 1 α (PGC-1α) increased in the m. vastus lateralis in the placebo group by 59 ± 97% and 19 ± 51%, respectively, but not in the vitamin C and E group (COX4: -13 ± 54%; PGC-1α: -13 ± 29%; P ≤ 0.03, between groups). Furthermore, mRNA levels of CDC42 and mitogen-activated protein kinase 1 (MAPK1) in the trained muscle were lower in the vitamin C and E group than in the placebo group (P ≤ 0.05). Daily vitamin C and E supplementation attenuated increases in markers of mitochondrial biogenesis following endurance training. However, no clear interactions were detected for improvements in VO2 max and running performance. Consequently, vitamin C and E supplementation hampered cellular adaptations in the exercised muscles, and although this did not translate to the performance tests applied in this study, we advocate caution when considering antioxidant supplementation combined with endurance exercise.


Assuntos
Ácido Ascórbico/farmacologia , Exercício Físico , Consumo de Oxigênio/efeitos dos fármacos , Resistência Física/efeitos dos fármacos , Vitamina E/farmacologia , Vitaminas/farmacologia , Adaptação Fisiológica , Adulto , Ácido Ascórbico/administração & dosagem , Suplementos Nutricionais , Método Duplo-Cego , Complexo IV da Cadeia de Transporte de Elétrons/genética , Complexo IV da Cadeia de Transporte de Elétrons/metabolismo , Feminino , Humanos , Masculino , Proteína Quinase 1 Ativada por Mitógeno/genética , Proteína Quinase 1 Ativada por Mitógeno/metabolismo , Músculo Esquelético/efeitos dos fármacos , Músculo Esquelético/metabolismo , Músculo Esquelético/fisiologia , Coativador 1-alfa do Receptor gama Ativado por Proliferador de Peroxissomo , Fatores de Transcrição/genética , Fatores de Transcrição/metabolismo , Vitamina E/administração & dosagem , Vitaminas/administração & dosagem , Proteína cdc42 de Ligação ao GTP/genética , Proteína cdc42 de Ligação ao GTP/metabolismo
7.
Clin Nutr ESPEN ; 60: 17-23, 2024 04.
Artigo em Inglês | MEDLINE | ID: mdl-38479906

RESUMO

BACKGROUND AND AIMS: Low muscle strength, low muscle mass, and sarcopenia have a negative impact on health outcomes in colorectal cancer (CRC) patients. Different diagnostic modalities are used to identify these conditions but it is unknown how well the modalities agree. The aim of this study was to compare different diagnostic modalities by means of calculating the proportion of low muscle strength, low muscle mass, and sarcopenia in CRC patients, and to investigate the agreement for sarcopenia between the various modalities. METHODS: Men and women participating in the Norwegian Dietary Guidelines and colorectal cancer Survival (CRC-NORDIET) study were included in the analyses. Cut-off values for low muscle strength, low muscle mass, and sarcopenia were defined according to the second consensus set by the European Working Group on Sarcopenia in Older People (EWGSOP2). The diagnostic modalities used to assess muscle strength were handgrip strength and the sit-to-stand test. For muscle mass, computed tomography, dual-energy X-ray absorptiometry (DXA), multi-frequency bioelectrical impedance analysis (MF-BIA), and single-frequency BIA (SF-BIA) were applied. Cohen's kappa was calculated to determine the agreement for low muscle strength and confirmed sarcopenia between diagnostic modalities. RESULTS: Five hundred and three men and women (54 % men, mean age of 66 (range 50-80) years old) were included in the analysis. As much as 99 % (n = 70) of the population was identified with low muscle mass by MF-BIA, while the other modalities identified 9-49 % as having low muscle mass. Handgrip strength identified a lower proportion of low muscle strength as compared with the sit-to-stand test (4 % vs. 8 %). When applying various combinations of diagnostic modalities for low muscle strength and low muscle mass, the proportion of sarcopenia was found to be between 0.3 and 11.4 %. There was relatively poor agreement between the different diagnostic modalities with Cohen's Kappa ranging from 0.0 to 0.55, except for the agreement between SF-BIASergi and MF-BIASergi, which was 1. CONCLUSION: The proportion of low muscle strength, low muscle mass, and sarcopenia in CRC patients varied considerably depending on the diagnostic modalities used. Further studies are needed to provide modality-specific cut-off values, adjusted to sex, age and body size.


Assuntos
Neoplasias Colorretais , Sarcopenia , Masculino , Humanos , Feminino , Idoso , Pessoa de Meia-Idade , Idoso de 80 Anos ou mais , Sarcopenia/diagnóstico , Sarcopenia/epidemiologia , Força da Mão/fisiologia , Músculo Esquelético/patologia , Impedância Elétrica , Força Muscular , Neoplasias Colorretais/complicações , Neoplasias Colorretais/diagnóstico , Neoplasias Colorretais/patologia
8.
Free Radic Biol Med ; 221: 75-80, 2024 Aug 20.
Artigo em Inglês | MEDLINE | ID: mdl-38762060

RESUMO

DNA damage caused by oxidative reactions plays a crucial role in the pathogenesis of colorectal cancer (CRC). In a previous cross-sectional study, CRC patients diagnosed with regional disease (stage III) exhibited a higher level of DNA base oxidation in peripheral blood mononuclear cells (PBMCs) 2-9 months post-surgery compared to those with localized disease (stage I-II). To further explore this observation over time, the present study aimed to investigate DNA base oxidation in CRC patients with localized versus regional disease 6 and 12 months after the initial measurements. The present study included patients enrolled in the randomized controlled trial Norwegian Dietary Guidelines and Colorectal Cancer Survival (CRC-NORDIET). The standard comet assay, modified with the lesion-specific enzyme formamidopyrimidine DNA glycosylase (Fpg), was applied to measure DNA base oxidation in PBMCs at the 6- and 12-month follow-ups. Of the 255 patients assessed at baseline, 156 were included at the 6-month follow-up, with 89 of these patients included in the 12-month follow-up. In contrast to our observation at baseline, there were no significant differences in the levels of DNA base oxidation between patients diagnosed with localized disease and those with regional involvement at the 6- and 12-month follow-up visits (P = 0.81 and P = 0.09, respectively). Patients with stage III disease exhibited a significant decrease in the levels of DNA base oxidation from baseline to 6 months (P < 0.01) and baseline to 12 months (P = 0.03), but no significant difference from 6 to 12 months (P = 0.80). In conclusion, the initially elevated levels of DNA base oxidation in PBMCs, observed 2-9 months post-surgery in patients diagnosed with regional disease (stage III), subsequently decreased to levels comparable to patients with localized disease (stage I-II) at the 6- and 12-month follow-ups.


Assuntos
Neoplasias Colorretais , Dano ao DNA , Leucócitos Mononucleares , Oxirredução , Humanos , Neoplasias Colorretais/genética , Neoplasias Colorretais/patologia , Neoplasias Colorretais/cirurgia , Neoplasias Colorretais/metabolismo , Masculino , Feminino , Idoso , Pessoa de Meia-Idade , Leucócitos Mononucleares/metabolismo , Seguimentos , Estadiamento de Neoplasias , Estresse Oxidativo , Ensaio Cometa , DNA-Formamidopirimidina Glicosilase/metabolismo , DNA-Formamidopirimidina Glicosilase/genética , DNA/genética , DNA/metabolismo , Estudos Transversais
9.
Free Radic Biol Med ; 218: 178-189, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38588903

RESUMO

DNA repair is essential to maintain genomic integrity and may affect colorectal cancer (CRC) patients' risk of secondary cancers, treatment efficiency, and susceptibility to various comorbidities. Bioactive compounds identified in plant foods have the potential to modulate DNA repair mechanisms, but there is limited evidence of how dietary factors may affect DNA repair activity in CRC patients in remission after surgery. The aim of this study was to investigate the effect of a 6-month personalized intensive dietary intervention on DNA repair activity in post-surgery CRC patients (stage I-III). The present study included patients from the randomized controlled trial CRC-NORDIET, enrolled 2-9 months after surgery. The intervention group received an intensive dietary intervention emphasizing a prudent diet with specific plant-based foods suggested to dampen inflammation and oxidative stress, while the control group received only standard care advice. The comet-based in vitro repair assay was applied to assess DNA repair activity, specifically base excision repair (BER), in peripheral blood mononuclear cells (PBMCs). Statistical analyses were conducted using gamma generalized linear mixed models (Gamma GLMM). A total of 138 CRC patients were included, 72 from the intervention group and 66 from the control group. The BER activity in the intervention group did not change significantly compared to the control group. Our findings revealed a substantial range in both inter- and intra-individual levels of BER. In conclusion, the results do not support an effect of dietary intervention on BER activity in post-surgery CRC patients during a 6-month intervention period.


Assuntos
Neoplasias Colorretais , Reparo do DNA , Humanos , Neoplasias Colorretais/dietoterapia , Neoplasias Colorretais/genética , Neoplasias Colorretais/cirurgia , Neoplasias Colorretais/patologia , Feminino , Masculino , Pessoa de Meia-Idade , Idoso , Estresse Oxidativo , Leucócitos Mononucleares/metabolismo , Medicina de Precisão/métodos , Dano ao DNA , Reparo por Excisão
11.
Clin Nutr ESPEN ; 57: 414-422, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37739688

RESUMO

BACKGROUND & AIMS: Changes in body composition may affect colorectal cancer (CRC) patient's risk of cancer recurrence, secondary cancer, and other chronic diseases. The suggested interventions for changes in body composition such as low muscle mass or high fat mass, are diet and physical activity. Nevertheless, there is limited evidence of how dietary intervention alone can impact body composition. This study aimed to investigate the effect of a 6 and 12 month dietary intervention with a focus on healthy eating according to Norwegian food-based dietary guidelines on weight and body composition in patients with CRC stage I-III, post-surgery. METHODS: This study included participants from the randomized controlled trial CRC-NORDIET study 2-9 months after surgery. The intervention group received an intensive dietary intervention, while the control group underwent similar measurements, but no dietary intervention. Body composition was measured with Lunar iDXA, and the results were analyzed using linear mixed models. RESULTS: A total of 383 participants were included, 192 in the intervention group and 191 in the control group. After 6 months, the intervention group showed a 0.7 kg lower mean weight gain (p = 0.020) and 0.6 kg lower fat mass gain (p = 0.019) than the control group, but no difference at 12 months. Moreover, the fat mass increase was 0.5 percentage points lower at 6 months (p = 0.012), and 0.7 percentage points lower at 12 months (p = 0.011) in the intervention group compared to the controls. At 6 months, the intervention group had 63 g lower gain of visceral adipose tissue compared to the control group (p = 0.031). No differences were seen for fat-free mass or subcutaneous adipose tissue at any time point. The intervention group showed a lower increase in the ratio between fat mass and fat-free mass at both 6 months (p = 0.025) and 12 months (p = 0.021). CONCLUSION: The dietary intervention reduced the increases in total weight and fat masses, without changing fat-free mass. Although the individual changes are small, the dietary intervention may have resulted in an overall more favourable body composition profile. These findings suggest that dietary intervention may be part of a treatment strategy for prevention of weight and fat mass gain in CRC survivors.


Assuntos
Composição Corporal , Neoplasias Colorretais , Humanos , Dieta Saudável , Exercício Físico , Alimentos
12.
Clin Nutr ESPEN ; 57: 711-717, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37739727

RESUMO

BACKGROUND: Malnutrition is common in older adults and is associated with increased morbidity and mortality rates. AIM: The aim of the study is to describe the prevalence of malnutrition based on low BMI, involuntary weight loss, and reduced food intake, in a Norwegian population of community-dwelling older adults and older adults living in nursing homes. METHODS: This population-based study is part of the fourth wave of the Trøndelag Health Study (HUNT4) and includes participants ≥70 years from the HUNT4 70+ cohort. The HUNT4 70+ cohort consist of 9930 (response rate 51.2%) participants. In the current study 8127 older people had complete dataset for inclusion in the analyses. Participants completed a self-report questionnaire and standardised interviews and clinical assessments at field stations, in participants' homes or at nursing homes. Malnutrition was defined using the following criteria: low BMI, involuntary weight loss and severely reduced food intake. The standardised prevalence of malnutrition was estimated using inverse probability weighting (IPW) with weights for sex, age and education of the total population in the catchment area of HUNT. RESULTS: Of the 8127 included participants, 7671 (94.4%) met at field stations, 356 (4.4%) were examined in their home, and 100 (1.2%) in nursing homes. In total, 14.3% of the population were malnourished based on either low BMI, weight loss, or reduced food intake, of which low BMI was the most frequently fulfilled criterion. The prevalence of malnutrition was less common among men than among women (10.1 vs 18.0%, p < 0.001), also after adjustment for age (OR 0.53, 95% confidence interval (CI) 0.46-0.61). The prevalence increased gradually with increasing age and the regression analysis adjusted for sex showed that for each year increase in age the prevalence of malnutrition increased with 4.0% (OR 1.04, 95% CI 1.03-1.05). The prevalence was higher both among older adults examined in their homes (26.4%) and residents in nursing home (23.6%), as compared to community-dwelling older adults who met at field stations (13.5%). CONCLUSION: The prevalence of malnutrition is high in the older population. Special attention on prevention and treatment of malnutrition should be given to older women, the oldest age groups, and care-dependent community-dwelling older adults and nursing home residents.


Assuntos
Desnutrição , Masculino , Humanos , Feminino , Idoso , Prevalência , Desnutrição/epidemiologia , Casas de Saúde , Vida Independente , Redução de Peso
13.
Cancer Med ; 12(13): 14806-14819, 2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-37212529

RESUMO

BACKGROUND: While adherence to cancer prevention recommendations is linked to lower risk of colorectal cancer (CRC), few have studied associations across the entire spectrum of colorectal carcinogenesis. Here, we studied the relationship of the standardized 2018 World Cancer Research Fund/American Institute for Cancer Research (WCRF/AICR) Score for cancer prevention recommendations with detection of colorectal lesions in a screening setting. As a secondary objective, we examined to what extent the recommendations were being followed in an external cohort of CRC patients. METHODS: Adherence to the seven-point 2018 WCRF/AICR Score was measured in screening participants receiving a positive fecal immunochemical test and in CRC patients participating in an intervention study. Dietary intake, body fatness and physical activity were assessed using self-administered questionnaires. Multinomial logistic regression was used to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for screen-detected lesions. RESULTS: Of 1486 screening participants, 548 were free from adenomas, 524 had non-advanced adenomas, 349 had advanced lesions and 65 had CRC. Adherence to the 2018 WCRF/AICR Score was inversely associated with advanced lesions; OR 0.82 (95% CI 0.71, 0.94) per score point, but not with CRC. Of the seven individual components included in the score, alcohol, and BMI seemed to be the most influential. Of the 430 CRC patients included in the external cohort, the greatest potential for lifestyle improvement was seen for the recommendations concerning alcohol and red and processed meat, where 10% and 2% fully adhered, respectively. CONCLUSIONS: Adherence to the 2018 WCRF/AICR Score was associated with lower probability of screen-detected advanced precancerous lesions, but not CRC. Although some components of the score seemed to be more influential than others (i.e., alcohol and BMI), taking a holistic approach to cancer prevention is likely the best way to prevent the occurrence of precancerous colorectal lesions.


Assuntos
Neoplasias Colorretais , Cooperação do Paciente , Humanos , Estados Unidos/epidemiologia , Estilo de Vida , Exercício Físico , Carcinogênese , Neoplasias Colorretais/diagnóstico , Neoplasias Colorretais/epidemiologia , Neoplasias Colorretais/etiologia , Dieta , Fatores de Risco
14.
Clin Nutr ESPEN ; 51: 490-492, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-36184248

RESUMO

BACKGROUND & AIMS: NRS-2002 is one of the recommended tools to screen hospitalized patients for malnutrition. NRS-2002 is considered as valid and reliable, but little is known about the inter-rater reliability between different groups of healthcare professionals. The aim of this study was to test the inter-rater reliability of the NRS-2002 tool between department nurses and researchers. METHODS: Inter-rater reliability was measured between the NRS-2002 scores given by department nurses and researchers, using data from a randomized controlled trial (RCT) at a hematological department in a Norwegian hospital. RESULTS: The mean NRS-2002 score was significantly higher when using researchers' scores compared to the department nurses' scores. The total agreement between the two groups of raters was 59%, kappa = 0.27. CONCLUSION: The inter-rater reliability of the NRS-2002 scores given by nurses and researchers was low. More research is needed to study if this is applicable also to other patient groups and in other wards.


Assuntos
Desnutrição , Hospitais , Humanos , Desnutrição/diagnóstico , Programas de Rastreamento , Reprodutibilidade dos Testes
15.
Clin Nutr ESPEN ; 52: 32-49, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-36513471

RESUMO

BACKGROUND & AIMS: The Norwegian Directorate of Health has identified a need to harmonize and standardize the malnutrition screening practice in Norwegian hospitals and primary health care settings, in order to provide a seamless communication of malnutrition screening along the patient pathway. Our aim was to perform a systematic review of the validity and reliability of screening tools used to identify risk of malnutrition across health care settings, diagnoses or conditions and adult age groups, as a first step towards a national recommendation of one screening tool. METHODS: A systematic literature search for articles evaluating validity, agreement, and reliability of malnutrition screening tools, published up to August 2020, was conducted in: MEDLINE, Embase, APA PsycInfo, Cinahl, Cochrane Databases, Web of Science, Epistemonikos, SveMed+, and Norart. The systematic review was registered in PROSPERO (CRD42022300558). For critical appraisal of each included article, the Quality Criteria Checklist by The Academy of Nutrition and Dietetics was used. RESULTS: The review identified 105 articles that fulfilled the inclusion and exclusion criteria. The most frequently validated tools were Mini Nutritional Assessment short form (MNA), Malnutrition Universal Screening Tool (MUST), Malnutrition Screening Tool (MST), and Nutritional Risk Screening 2002 (NRS-2002). MNA, MST and NRS-2002 displayed overall moderate validity, and MUST low validity. All four tools displayed low agreement. MST and MUST were validated across health care settings and age groups. In general, data on reliability was limited. CONCLUSIONS: The screening tools MST and NRS-2002 displayed moderate validity for the identification of malnutrition in adults, of which MST is validated across health care settings. In addition, MNA has moderate validity for the identification of malnutrition in adults 65 years or older.


Assuntos
Desnutrição , Avaliação Nutricional , Adulto , Humanos , Reprodutibilidade dos Testes , Desnutrição/diagnóstico , Programas de Rastreamento , Padrões de Referência
16.
Clin Nutr ; 41(2): 329-336, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-34999327

RESUMO

BACKGROUND & AIM: The Global Leadership Initiative on Malnutrition (GLIM) has suggested a process for the diagnosis of malnutrition. The process consists of applying an existing screening tool for malnutrition screening, followed by malnutrition diagnostics, and finally categorization of malnutrition severity (moderate or severe) according to specific GLIM criteria. However, it is not known how well the GLIM process agrees with other diagnostic tools used in the current clinical practice. The aim of this study was to validate the GLIM process against the Patient Generated-Subjective Global Assessment (PG-SGA) when different screening tools were applied in the screening step of the GLIM process. METHODS: Colorectal cancer (CRC) patients from the ongoing CRC-NORDIET study were included. For the GLIM process, the patients were first screened for malnutrition using either 1) Nutritional risk screening, first 4 questions (NRS-2002-4Q), 2) Malnutrition Screening Tool (MST), 3) Malnutrition Universal Screening Tool (MUST) or 4) the PG-SGA short form (PG-SGA-SF). The GLIM malnutrition diagnosis was then based on combining the result from each of the screening methods with the etiological and phenotypic GLIM-criteria including weight loss, BMI and fat free mass. In parallel, the patients were diagnosed using the PG-SGA methodology categorizing the patients into either A: well nourished, B: moderately malnourished or C: severely malnourished. The four different GLIM based diagnoses were then validated against the diagnosis obtained by the PG-SGA tool. Sensitivity, specificity and positive predictive value (PPV) were calculated to evaluate validity. RESULTS: In total, 426 patients were included (mean age: 66, ±8 years) at a mean time of 166 (±56) days after surgery. The GLIM diagnosis based on the four different screening tools identified 10-24% of the patients to be malnourished, of which 3-8% were severely malnourished. The PG-SGA method categorized 15% as moderately malnourished (PG-SGA: category B) and no patients as severely malnourished (PG-SGA: category C). The agreement between the PG-SGA and GLIM process was in general low, but differed according to the tools: PG-SGA SF (sensitivity 47%, PPV 71%), MST (sensitivity 56%, PPV 47%), NRS-2002-4Q (sensitivity 63%, PPV 53%) and MUST (sensitivity 53%, PPV 34%). CONCLUSION: In this cross-sectional study of patients with CRC, the concordance between the GLIM-criteria and PG-SGA depended on the screening tool used in the GLIM process. Malnutrition frequency based on the GLIM process schould be reported with and without the use of a screening tool.


Assuntos
Neoplasias Colorretais/fisiopatologia , Desnutrição/diagnóstico , Programas de Rastreamento/métodos , Avaliação Nutricional , Idoso , Idoso de 80 Anos ou mais , Neoplasias Colorretais/complicações , Estudos Transversais , Feminino , Humanos , Masculino , Desnutrição/etiologia , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Índice de Gravidade de Doença
17.
Clin Nutr ESPEN ; 52: 28-31, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-36513467

RESUMO

BACKGROUND & AIMS: Malnutrition is underdiagnosed and undertreated in Norway. In a revision of a national guideline on malnutrition, the Norwegian Directorate of Health aimed for a harmonization and standardization of the malnutrition screening practice, including a recommendation of one malnutrition screening tool to be used among all adults in Norwegian health and care services. METHODS: A working group was appointed by the Norwegian Directorate of Health. Evidence-based practice, a pragmatic decision-making process based on a literature review, the Grading of Recommendations Assessment, Development and Evaluation (GRADE), and the DECIDE decision-making model was used as a guidance in order to convert evidence into recommendations. RESULTS: The criteria and properties of the four most frequently validated malnutrition screening tools were identified and ranked by the working group. The tools were prioritized in the following order: 1: Malnutrition Screening Tool (MST), 2: Malnutrition Universal Screening Tool (MUST), 3: Nutritional Risk Screening 2002 (NRS-2002), and 4: Mini-Nutritional Assessment short form (MNA). CONCLUSIONS: The Norwegian Directorate of Health recommends use of MST for screening for malnutrition among all adults (≥18 years), across all health care settings, and diagnoses or conditions in Norway.


Assuntos
Desnutrição , Avaliação Nutricional , Adulto , Humanos , Desnutrição/diagnóstico , Programas de Rastreamento , Noruega
18.
Clin Nutr ; 40(8): 5030-5037, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-34365037

RESUMO

BACKGROUND & AIMS: The Global Leadership Initiative on Malnutrition (GLIM) criteria is a step-wise process including a screening tool of choice for risk assessment of malnutrition before assessment of diagnosis and grading of malnutrition severity. The agreement between GLIM and the established malnutrition assessment method Patient Generated-Subjective Global Assessment (PG-SGA) is uncertain. Also, several aspects of GLIM remain to be clearly defined. In this study, we compared diagnosis of malnutrition with the GLIM criteria to the PG-SGA, and explored the differences between the methods. METHODS: This cross-sectional study was conducted at the Nutrition Outpatient Clinic at Oslo University Hospital, Norway. Patients were included from September-December 2019. Nutritional Risk Screening 2002 (NRS-2002) was used as the screening tool in the GLIM process before diagnosing and grading the severity of malnutrition. Results are presented with and without the initial risk screening. The diagnostic results from the GLIM process were compared to the malnutrition diagnosis using the PG-SGA. RESULTS: In total, 144 patients, median age 58 years, participated in the study. The full GLIM process identified 36% of the patients as malnourished, while the PG-SGA identified 69% of the patients as malnourished. Comparison of GLIM and PG-SGA showed fair agreement, however the agreement was better when the NRS-2002 screening was excluded. Considering the PG-SGA a gold standard, GLIM had a sensitivity of 51% and a specificity of 98%. The introduction of new cut-off values for fat-free mass did not considerably alter the diagnosis of malnutrition within GLIM. CONCLUSIONS: The GLIM criteria showed only fair agreement with the PG-SGA, however the agreement was better when the initial NRS-2002 screening was excluded. A joint consensus on how to perform the GLIM process is needed for comparisons of future studies, and before routine use in clinical practice.


Assuntos
Desnutrição/diagnóstico , Programas de Rastreamento/métodos , Avaliação Nutricional , Pacientes Ambulatoriais/estatística & dados numéricos , Medição de Risco , Instituições de Assistência Ambulatorial , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Noruega , Valores de Referência , Reprodutibilidade dos Testes , Sensibilidade e Especificidade
19.
Clin Nutr ; 40(4): 2128-2137, 2021 04.
Artigo em Inglês | MEDLINE | ID: mdl-33059912

RESUMO

BACKGROUND: Pancreatic diseases involve complex nutritional challenges. Despite this, conflicting evidence exists regarding the clinical relevance of detecting the risk of malnutrition and implementing systematic nutrition support for these patients. Thus, our aims were to investigate whether screening for malnutrition risk and initiating nutrition support are predictive of mortality for hospitalized patients with pancreatic diseases. DESIGN: From 2008 to 2018, 34 prevalence surveys of nutrition were conducted at Haukeland University Hospital (HUH), Norway. Risk of malnutrition was defined by a score of ≥3 in Nutritional Risk Screening 2002 (NRS 2002). Primary outcomes included overall, one-year, and one-month mortality, and were compared according to malnutrition risk and nutrition support for adult patients with ICD-10 codes of K85: acute pancreatitis, K86: other diseases of pancreas, and C25: malignant neoplasm of pancreas. Length of hospital stay (LOS) was included as a secondary outcome. RESULTS: Of the 283 patients investigated, risk of malnutrition was present in 61.5%. Risk of malnutrition was associated with higher overall mortality (Hazard Ratio (HR) = 1.67, 95% confidence interval (CI): 1.2-2.4, P = 0.003) and one-year mortality (HR = 1.89, 95% CI: 1.2-2.9, P = 0.004) compared to patients not at risk. Not receiving nutrition support for at-risk patients was associated with higher overall mortality (HR = 1.60, 95% CI: 1.1-2.4, P = 0.019) and one-year mortality (HR = 1.64, 95% CI: 1.04-2.6, P = 0.034) compared to patients at risk who received nutrition support. Patients at risk of malnutrition had increased LOS (20.5 nights vs 15.2 nights, P = 0.044) compared to patients not at risk of malnutrition. CONCLUSION: This study of hospitalized patients with pancreatic disease suggests that risk of malnutrition may be associated with higher mortality rates, whereas nutrition support may decrease mortality rates. CLINICAL TRIAL REGISTRY: Not registered.


Assuntos
Desnutrição/epidemiologia , Apoio Nutricional/estatística & dados numéricos , Pancreatopatias/mortalidade , Pancreatopatias/terapia , Adulto , Idoso , Feminino , Humanos , Tempo de Internação , Masculino , Desnutrição/diagnóstico , Programas de Rastreamento , Pessoa de Meia-Idade , Noruega/epidemiologia , Avaliação Nutricional , Apoio Nutricional/métodos , Neoplasias Pancreáticas , Pancreatite/mortalidade , Pancreatite/terapia , Modelos de Riscos Proporcionais , Fatores de Risco , Taxa de Sobrevida
20.
Clin Nutr ESPEN ; 43: 360-368, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-34024541

RESUMO

BACKGROUND & AIMS: Excess adipose tissue may affect colorectal cancer (CRC) patients' disease progression and treatment. In contrast to the commonly used anthropometric measurements, Dual-Energy X-Ray Absorptiometry (DXA) and Computed Tomography (CT) can differentiate adipose tissues. However, these modalities are rarely used in the clinic despite providing high-quality estimates. This study aimed to compare DXA's measurement of abdominal visceral adipose tissue (VAT) and fat mass (FM) against a corresponding volume by CT in a CRC population. Secondly, we aimed to identify the best single lumbar CT slice for abdominal VAT. Lastly, we investigated the associations between anthropometric measurements and VAT estimated by DXA and CT. METHODS: Non-metastatic CRC patients between 50-80 years from the ongoing randomized controlled trial CRC-NORDIET were included in this cross-sectional study. Corresponding abdominal volumes were acquired by Lunar iDXA and from clinically acquired CT examinations. Also, single CT slices at L2-, L3-and L4-level were obtained. Agreement between the methods was investigated using univariate linear regression and Bland-Altman plots. RESULTS: Sixty-six CRC patients were included. Abdominal volumetric VAT and FM measured by DXA explained up to 91% and 96% of the variance in VAT and FM by CT, respectively. Bland-Altman plots demonstrated an overestimation of VAT by DXA compared to CT (mean difference of 76 cm3) concurrent with an underestimation of FM (mean difference of -319 cm3). A higher overestimation of VAT (p = 0.015) and underestimation of FM (p = 0.036) were observed in obese relative to normal weight subjects. VAT in a single slice at L3-level showed the highest explained variance against CT volume (R2 = 0.97), but a combination of three slices (L2, L3, L4) explained a significantly higher variance than L3 alone (R2 = 0.98, p < 0.006). The anthropometric measurements explained between 31-65% of the variance of volumetric VAT measured by DXA and CT. CONCLUSIONS: DXA and the combined use of three CT slices (L2-L4) are valid to predict abdominal volumetric VAT and FM in CRC patients when using volumetric CT as a reference method. Due to the poor performance of anthropometric measurements we recommend exploring the added value of advanced body composition by DXA and CT integrated into CRC care.


Assuntos
Neoplasias Colorretais , Tomografia Computadorizada por Raios X , Absorciometria de Fóton , Tecido Adiposo , Idoso , Idoso de 80 Anos ou mais , Neoplasias Colorretais/diagnóstico por imagem , Estudos Transversais , Humanos , Pessoa de Meia-Idade
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA