Efficacy and Safety of Habitual Consumption of a Food Supplement Containing Miraculin in Malnourished Cancer Patients: The CLINMIR Pilot Study.

Taste disorders (TDs) are common among systemically treated cancer patients and negatively impact their nutritional status and quality of life. The novel food approved by the European Commission (EFSA), dried miracle berries (DMB), contains the natural taste-modifying protein miraculin. DMB, also available as a supplement, has emerged as a possible alternative treatment for TDs. The present study aimed to evaluate the efficacy and safety of habitual DMB consumption in malnourished cancer patients undergoing active treatment. An exploratory clinical trial was carried out in which 31 cancer patients were randomized into three arms [standard dose of DMB (150 mg DMB/tablet), high dose of DMB (300 mg DMB/tablet) or placebo (300 mg freeze-dried strawberry)] for three months. Patients consumed a DMB tablet or placebo daily before each main meal (breakfast, lunch, and dinner). Throughout the five main visits, electrochemical taste perception, nutritional status, dietary intake, quality of life and the fatty acid profile of erythrocytes were evaluated. Patients consuming a standard dose of DMB exhibited improved taste acuity over time (% change right/left side: -52.8 ± 38.5/-58.7 ± 69.2%) and salty taste perception (2.29 ± 1.25 vs. high dose: 2.17 ± 1.84 vs. placebo: 1.57 ± 1.51 points, p < 0.05). They also had higher energy intake (p = 0.075) and covered better energy expenditure (107 ± 19%). The quality of life evaluated by symptom scales improved in patients receiving the standard dose of DMB (constipation, p = 0.048). The levels of arachidonic (13.1 ± 1.8; 14.0 ± 2.8, 12.0 ± 2.0%; p = 0.004) and docosahexaenoic (4.4 ± 1.7; 4.1 ± 1.0; 3.9 ± 1.6%; p = 0.014) acids in erythrocytes increased over time after DMB intake. The standard dose of DMB increased fat-free mass vs. placebo (47.4 ± 9.3 vs. 44.1 ± 4.7 kg, p = 0.007). Importantly, habitual patients with DMB did not experience any adverse events, and metabolic parameters remained stable and within normal ranges. In conclusion, habitual consumption of a standard 150 mg dose of DMB improves electrochemical food perception, nutritional status (energy intake, fat quantity and quality, fat-free mass), and quality of life in malnourished cancer patients receiving antineoplastic treatment. Additionally, DMB consumption appears to be safe, with no changes in major biochemical parameters associated with health status. Clinical trial registered (NCT05486260).

[Nutrition in breast cancer genesis]. / El papel de la nutrición en la génesis del cáncer de mama.

Introduction: Breast cancer is the most prevalent tumor in women, ranking first in incidence and mortality in many countries. Although the causes of breast cancer are complex and multifactorial, nutritional factors and those related to nutritional status play an important role in the development of the disease. In this way, factors that increase breast cancer risk have been identified, such as weight gain, the amount of adipose tissue, waist circumference, alcohol consumption or the consumption of red meat and processed meat, while other factors have been identified that reduce the risk, such as eating fruits and vegetables. Nutritional factors or factors that depend on the state of nutrition are modifiable and preventable, so they must be considered when designing effective prevention programs.

Introducción: El cáncer de mama es el tumor más prevalente en las mujeres y ocupa el primer lugar en incidencia y en mortalidad en muchos países. Si bien las causas del cáncer de mama son complejas y multifactoriales, los factores nutricionales y aquellos relacionados con el estado nutricional juegan un papel importante en el desarrollo de la enfermedad. De esta forma, se han identificado algunos factores que aumentan su riesgo, como el aumento de peso, la cantidad de tejido adiposo, la circunferencia de cintura, el consumo de alcohol, etc., o bien, que lo reducen, como el consumo de frutas y verduras. Los factores nutricionales o que dependen del estado de nutrición son modificables y prevenibles, por lo que deben tenerse en cuenta al diseñar programas de prevención eficaces.

Effect of Regular Consumption of a Miraculin-Based Food Supplement on Taste Perception and Nutritional Status in Malnourished Cancer Patients: A Triple-Blind, Randomized, Placebo-Controlled Clinical Trial-CLINMIR Pilot Protocol.

Taste disorders are common among cancer patients undergoing chemotherapy, with a prevalence ranging from 20% to 86%, persisting throughout treatment. This condition leads to reduced food consumption, increasing the risk of malnutrition. Malnutrition is associated not only with worse treatment efficacy and poor disease prognosis but also with reduced functional status and quality of life. The fruit of Synsepalum dulcificum (Daniell), commonly known as miracle berry or miracle fruit, contains miraculin, a taste-modifying protein with profound effects on taste perception. The CLINMIR Protocol is a triple-blind, randomized, placebo-controlled clinical trial designed to evaluate the regular consumption of a food supplement containing a miraculin-based novel food, dried miracle berry (DMB), on the taste perception (measured through electrogustometry) and nutritional status (evaluated through the GLIM Criteria) of malnourished cancer patients under active antineoplastic treatment. To this end, a pilot study was designed with 30 randomized patients divided into three study arms (150 mg DMB + 150 mg freeze-dried strawberries, 300 mg DMB, or placebo) for three months. Throughout the five main visits, an exhaustive assessment of different parameters susceptible to improvement through regular consumption of the miraculin-based food supplement will be conducted, including electrical and chemical taste perception, smell perception, nutritional and morphofunctional assessment, diet, quality of life, the fatty acid profile of erythrocytes, levels of inflammatory and cancer-associated cytokines, oxidative stress, antioxidant defense system, plasma metabolomics, and saliva and stool microbiota. The primary anticipated result is that malnourished cancer patients with taste distortion who consume the miraculin-based food supplement will report an improvement in food taste perception. This improvement translates into increased food intake, thereby ameliorating their nutritional status and mitigating associated risks. Additionally, the study aims to pinpoint the optimal dosage that provides maximal benefits. The protocol adheres to the SPIRIT 2013 Statement, which provides evidence-based recommendations and is widely endorsed as an international standard for trial protocols. The clinical trial protocol has been registered at the platform for Clinical Trials (NCT05486260).

[Evaluation of the organoleptic characteristics of an oral nutritional supplement designed specifically for the cancer patient]. / Evaluación de las características organolépticas de un suplemento nutricional oral diseñado específicamente para el paciente oncológico.

Introduction: Introduction: oral nutritional supplements (ONS) are nutritional therapies used to treat malnutrition in cancer patients, therefore, innovation in these treatments, from nutrients to sensory quality, is essential to ensure their consumption. Objectives: to evaluate the organoleptic characteristic of different prototypes of oral nutritional supplements specifically designed for cancer patients. Method: cross-sectional, randomized, double-blind pilot clinical study in patients with any type of cancer, with or without oncological treatment, who tasted five ONS prototypes with different flavors (brownie, tropical, pineapple, tomato and ham) and different sensory qualities in order to evaluate their organoleptic characteristics (color, smell, taste, residual taste, texture and density) through a specific questionnaire. Results: thirty patients aged 67.5 ± 11.2 years and body mass index (BMI) of 22.3 ± 3.52 kg/m2 were evaluated. The most prevalent tumors were head and neck (30 %), pancreas (20 %) and colon (17 %); 65 % of the patients had lost ≥ 10 % of their body weight in six months. The best rated supplements by the cancer population were those with brownie flavor (23.67 ± 3.91 points) and tropical (20.33 ± 3.37 points), while the least valued were tomato (16.33 ± 5.44 points) and ham flavor (13.97 ± 4.64 points). Conclusions: cancer patients value the organoleptic characteristics of ONS with sweet flavors, such as brownie, and fruity flavors, such as tropical, much more positively. Less appreciated by these patients are those with a salty taste, such as ham and tomato flavor.

Introducción: Introducción: los suplementos nutricionales orales (SNO) son una de las terapias nutricionales más utilizadas para tratar la desnutrición en los pacientes oncológicos. Por ello, es de gran importancia contar con la innovación en estos tratamientos, desde los nutrientes hasta la calidad sensorial, para asegurar su consumo. Objetivos: evaluar las características organolépticas de diferentes prototipos de SNO diseñados específicamente para pacientes oncológicos. Métodos: estudio clínico piloto transversal, aleatorizado, cruzado y doble ciego en pacientes con cualquier tipo de cáncer, con o sin tratamiento oncológico, a los que se les realizó una cata de cinco prototipos de SNO con distintos sabores (brownie, tropical, piña, tomate y jamón) y distintas cualidades sensoriales para evaluar sus características organolépticas (color, olor, sabor, gusto residual, textura y densidad) a través de un cuestionario específico. Resultados: treinta pacientes de 67,5 ± 11,2 años y con un índice de masa corporal (IMC) de 22,3 ± 3,52 kg/m2 fueron evaluados. Los tumores más prevalentes fueron cabeza y cuello (30 %), páncreas (20 %) y colorrectal (17 %). El 65 % de los pacientes había perdido ≥ 10 % del peso corporal en seis meses. Los SNO mejor valorados fueron los sabores brownie (23,67 ± 3,91 puntos) y tropical (20,33 ± 3,37 puntos) mientras que los menos valorados fueron los SNO con sabor tomate (16,33 ± 5,44 puntos) y jamón (13,97 ± 4,64 puntos). Conclusión: los pacientes oncológicos valoran de forma mucho más positiva las características organolépticas de los SNO con sabores dulces, como el brownie, y los sabores afrutados, como el tropical. Menos apreciados por este colectivo son aquellos con un sabor salado, como el sabor jamón y tomate.

[Diet and lifestyle in cancer prevention]. / Alimentación y estilo de vida en la prevención del cáncer.

Introduction: European Union represents a tenth of the world population, however, it has a quarter of the cancer cases in the world. Without strong action, it is estimated that by 2035 cancer cases will increase by almost 25 %, making this disease the main cause of death. Therefore, the aim of this study is to know the diet and lifestyle guidelines associated to cancer prevention. A literature review has been carried out on the diet and lifestyle guidelines related to a reduction in cancer risk. Strategies to reduce cancer risk include maintaining a healthy weight, being physically active, consuming a diet rich in whole grains, fruits, non-starchy vegetables, and legumes, limit processed and fast food, limit consumption of red meat and eat little, if any, processed meats, drink mostly water and limit the consumption of sugar sweetened drinks, finally reduce, or do not consume alcohol. Prevention is an effective tool to reduce cancer risk. Adequate diet and healthy lifestyle habits can reduce cancer risk as well as other non-communicable diseases and can even have environmental benefits.

Introducción: La Unión Europea representa una décima parte de la población mundial, pero tiene un cuarto de los casos de cáncer de todo el mundo. Sin una acción contundente, se estima que en 2035 los casos de cáncer aumentarán casi un 25 %, lo que convertirá a esta enfermedad en la principal causa de muerte. Por ello, el objetivo del presente estudio es conocer las pautas de alimentación y de estilo de vida que influyen en la prevención del cáncer. Para ello se ha realizado una revisión bibliográfica de las pautas de alimentación y de los principales estilos de vida que se relacionan con una reducción del riesgo de padecer cáncer. Entre las estrategias para reducir el riesgo de cáncer se encuentran el mantenimiento de un peso saludable a lo largo de toda la vida, ser físicamente activo, consumir una dieta rica en cereales integrales, frutas, verduras no almidonadas y legumbres, limitar el consumo de alimentos procesados y de comida rápida, limitar el consumo de carne roja y consumir poco o nada de carnes procesadas, consumir principalmente agua y limitar el consumo de bebidas azucaradas, y por último, reducir el consumo de alcohol o no consumirlo. La prevención es una herramienta eficaz para reducir el riesgo de padecer cáncer. Una adecuada alimentación y hábitos de vida saludables reducirán el riesgo de padecer cáncer en el futuro, así como otras enfermedades no transmisibles e, incluso, beneficios medioambientales.

A standardized, integral nutritional intervention and physical activity program reduces body weight in women newly diagnosed with breast cancer.

INTRODUCTION: Introduction: breast cancer is the most common invasive cancer among women in developed countries. At diagnosis, approximately 70 % of women are overweight, and the additional weight gain that can result from the ensuing treatments has been associated with cancer recurrence and progression. Objectives: the main objective was to compare the effect of only a nutritional intervention (CG) with a nutrition education program (nutritional intervention, nutrition education, and physical activity) (IG) for 1 year. Methods: a total of 65 women with breast cancer who had been evaluated at the Clinical Nutrition Department, La Paz University Hospital, Madrid, Spain were recruited into 2 groups: a control group (CG) and an intervention group (IG). Results: the IG showed a significant reduction in body weight (-1.87 ± 3.41 vs. 1.48 ± 2.01 kg, p < 0.05), BMI (-0.61 ± 1.40 vs. 0.65 ± 0.88 kg/m2, p < 0.05), total cholesterol (-32.92 ± 38.45 vs. -3.23 ± 39.73 mg/dl, p < 0.05), and low-density lipoprotein cholesterol (-35.29 ± 27.50 vs. 6.33 ± 40.70 mg/dl, p < 0.05). Both groups were shown to be more conscious of the importance of physical activity, with increased consumption of grains, fruits, oily fish, and dairy. Conclusions: dietary interventions and physical activity were shown to be important to achieving several physical and physiological benefits that could reduce some risk factors associated with breast cancer recurrence and progression.

INTRODUCCIÓN: Introducción: el cáncer de mama es el cáncer invasivo más común entre las mujeres de los países desarrollados. En el momento del diagnóstico, aproximadamente el 70 % de las mujeres tienen sobrepeso, y el aumento de peso adicional que puede resultar de los tratamientos subsiguientes se ha asociado con la recurrencia y progresión de la enfermedad. Objetivos: el objetivo principal del estudio fue comparar el efecto de solo una intervención nutricional (GC) con un programa integral de educación nutricional (intervención y educación nutricional y actividad física) (IG) durante 1 año. Métodos: un total de 65 mujeres con cáncer de mama previamente evaluadas en la Unidad de Nutrición Clínica y Dietética del Hospital Universitario La Paz, Madrid, España, fueron reclutadas y divididas en 2 grupos: grupo de control (GC) y grupo de intervención (GI). Resultados: el GI mostró una reducción significativa del peso corporal (-1,87 ± 3,41 vs. 1,48 ± 2,01 kg, p < 0,05), IMC (-0,61 ± 1,40 vs. 0,65 ± 0,88 kg/m2, p < 0,05), colesterol total (-32,92 ± 38,45 vs. -3,23 ± 39,73 mg/dl, p < 0,05) y colesterol unido a lipoproteínas de baja densidad (LDL) (-35,29 ± 27,50 vs. 6,33 ± 40,70 mg/dl, p < 0,05). Al finalizar el estudio, ambos grupos fueron más conscientes de la importancia de la actividad física y demostraron consumir una cantidad más elevada de cereales, frutas, pescado azul y lácteos. Conclusiones: las intervenciones dietéticas junto con la práctica de actividad física son importantes para lograr beneficios físicos y fisiológicos que podrían reducir algunos factores de riesgo asociados con la recurrencia y progresión del cáncer de mama.

[Comparison of the CONUT method with SGA and NSA for the prediction of complications, hospital stay, readmissions, and mortality]. / Comparación del método CONUT con la VGS y el VEN para la predicción de complicaciones, estancia hospitalaria, readmisiones y mortalidad.

INTRODUCTION: Introduction: disease-related malnutrition (DRM) is a specific type of malnutrition caused by the inflammatory response to the underlying disease. Its prevalence worldwide varies from 30 % to 50 %, being similar in Spanish hospitals. DRE is not commonly recognized but is usually misdiagnosed and generally not treated. It is associated with an increased risk of morbidity, mortality, and costs. Nutritional societies recommend that screening be performed within the first 24 to 48 hours after admission for the early detection of malnutrition. No screening tool is universally accepted. Objectives: to evaluate the predictive validity (hospital stay, complications, readmissions and mortality) of the CONUT method as compared to SGA and NSA. Material and method: a retrospective study included in a prospective observational study of 365 hospitalized patients from July to December 2012. Results: the most frequent admission services were Internal Medicine and Oncology (30.7 % and 29.3 %). Moderate and severe risk of malnutrition: CONUT, 42.2 % and 12.1 %, SGA 25.8 % and 10.1 %, and NSA 13.7 % and 14.5 %. Malnutrition evaluated using the CONUT method was significantly related to complications (p = 0.036), readmissions (p = 0.041) and mortality (p = 0.007). The ROC curves for mortality, for all the methods evaluated, showed that CONUT is the best tool. Conclusions: CONUT is an automatic detection tool that can be used as a first step in the diagnosis risk of malnutrition. CONUT offers the advantage of being a prognostic factor for complications, readmission, and mortality.

INTRODUCCIÓN: Introducción: la desnutrición relacionada con la enfermedad (DRE) es un tipo específico de desnutrición producida por la respuesta inflamatoria de la enfermedad de base. Su prevalencia en todo el mundo varía del 30 al 50 %, siendo similar en los hospitales españoles. La DRE no se reconoce comúnmente, se diagnostica inadecuadamente y generalmente no se trata. Se asocia a un mayor riesgo de morbilidad, mortalidad y costes. Las sociedades nutricionales recomiendan que el cribado se realice en las primeras 24 a 48 horas posteriores al ingreso para la detección temprana de la desnutrición. Ninguna herramienta de cribado se acepta universalmente. Objetivos: evaluar la validez predictiva (estancia hospitalaria, complicaciones, reingresos y mortalidad) del método CONUT en comparación con la VGS y el VEN. Material y método: estudio retrospectivo incluido en un prospectivo observacional de 365 pacientes hospitalizados de julio a diciembre de 2012. Resultados: los servicios de ingreso más frecuentes fueron Medicina Interna y Oncología (30,7 % y 29,3 %). Detección de los riesgos moderado y severo de desnutrición: CONUT, 42,2 y 12,1 %; VSG, 25,8 % y 10,1 %; VEN, 13,7 y 14,5 %. La desnutrición evaluada utilizando el método CONUT se relacionó significativamente con las complicaciones (p = 0,036), los reingresos (p = 0,041) y la mortalidad (p = 0,007). Las curvas ROC de la mortalidad, para todos los métodos evaluados, mostraron que CONUT es la mejor herramienta. Conclusiones: CONUT es una herramienta de detección automática que se puede utilizar como primer paso en el diagnóstico del riesgo de desnutrición. CONUT ofrece la ventaja de ser un factor pronóstico de complicaciones, reingreso y mortalidad.

A Dairy Product to Reconstitute Enriched with Bioactive Nutrients Stops Bone Loss in High-Risk Menopausal Women without Pharmacological Treatment.

Osteoporosis is a multifactorial disease characterized by the loss of bone mass and deterioration of the internal structure of the bone, increasing the risk of fractures, and is becoming an economic and social problem. The main treatment is pharmacological, however, the population demands other therapies, such as foods with nutrients beneficial to bone health. Seventy-eight healthy menopausal women at risk of osteoporosis or untreated osteopenia were recruited for a randomized, parallel, double-blind clinical trial with two intervention groups: one group consumed a serving a day of the experimental enriched product (experimental group (EG)) and the other group (control group (CG)) consumed the same product without enrichment. The main objective was to compare the effect of consuming a dairy preparation to reconstitute, similar to yogurt when prepared, enriched in calcium, vitamin D, vitamin K, vitamin C, zinc, magnesium, L-leucine and probiotic (Lactobacillus plantarum 3547) on bone metabolism markers for 24 weeks. The EG showed a significantly increased bone mass compared to the CG (0.01 ± 0.03 vs. -0.01 ± 0.03 kg; p < 0.05). In addition, the EG maintained their bone mineral density (BMD) compared to the CG, whose BMD significantly decreased at the end of the study. For biochemical markers, the EG significantly increased the serum levels of the N-terminal propeptide of type I collagen (P1NP) bone formation marker (13.19 ± 25.17 vs. -4.21 ± 15.62 ng/mL; p < 0.05), and decreased the carbo-terminal telopeptide of type I collagen (CTx) bone resorption marker compared to the CG (-0.05 ± 0.19 vs. 0.04 ± 0.14 ng/mL; p < 0.05). On the other hand, the EG exhibited a significantly decreased systolic and diastolic blood pressure compared to the start of the study. Finally, the EG significantly increased their dietary calcium and vitamin D intake compared to the CG. In conclusion, the regular consumption of a dairy product to reconstitute enriched with bioactive nutrients improves bone health markers in menopausal women at risk of osteoporosis without pharmacological treatment.

The Effects of the Type of Exercise and Physical Activity on Eating Behavior and Body Composition in Overweight and Obese Subjects.

The aim of this study was to examine whether a type of exercise favors better compliance with a prescribed diet, higher eating-related motivation, healthier diet composition or greater changes in body composition in overweight and obese subjects. One hundred and sixty-two (males n = 79), aged 18-50 years, were randomized into four intervention groups during 24 weeks: strength, endurance, combined strength + endurance and guideline-based physical activity; all in combination with a 25-30% caloric restriction diet. A food frequency questionnaire and a "3-day food and drink record" were applied pre- and post-intervention. Diet and exercise-related motivation levels were evaluated with a questionnaire developed for this study. Body composition was assessed by DXA and habitual physical activity was measured by accelerometry. Body weight, body mass index (BMI) and body fat percentage decreased and lean body mass increased after the intervention, without differences by groups. No interactions were observed between intervention groups and time; all showing a decreased in energy intake (p < 0.001). Carbohydrate and protein intakes increased, and fat intake decreased from pre- to post-intervention without significant interactions with intervention groups, BMI category or gender (p < 0.001). Diet-related motivation showed a tendency to increase from pre- to post-intervention (70.0 ± 0.5 vs 71.0 ± 0.6, p = 0.053), without significant interactions with intervention groups, BMI or gender. Regarding motivation for exercise, gender x time interactions were observed (F(1,146) = 7.452, p = 0.007): Women increased their motivation after the intervention (pre: 17.6 ± 0.3, post: 18.2 ± 0.3), while men maintained it. These findings suggest that there are no substantial effects of exercise type on energy intake, macronutrient selection or body composition changes. After a six-month weight loss program, individuals did not reduce their motivation related to diet or exercise, especially women. Individuals who initiate a long-term exercise program do not increase their energy intake in a compensatory fashion, if diet advices are included.

Milk and Dairy Product Consumption and Bladder Cancer Risk: A Systematic Review and Meta-Analysis of Observational Studies.

Some studies have reported that milk and dairy product consumption reduces bladder cancer incidence, whereas others have reported null or opposite findings. This meta-analysis of 26 cohort and case-control studies has been conducted to pool the risk of the association between milk and dairy products and bladder cancer. A systematic search in MEDLINE, EMBASE, and the Web of Science (from inception to 30 April 2018) was conducted. Random-effects models were used to compute pooled estimates of RR for high or medium compared with low consumption of milk and dairy. Sensitivity analyses were conducted. Subgroup analyses were performed based on type of dairy, gender, geographic location, and type of study design. Random-effects meta-regression was used to evaluate other confounding factors. Overall, medium compared with low consumption was associated with lower pooled risk of bladder cancer for total dairy products (RR = 0.90; 95% CI: 0.81, 0.98), milk (RR = 0.90; 95% CI: 0.82, 0.98), and fermented dairy products (RR = 0.87; 95% CI: 0.79, 0.96). The inverse association for milk consumption was stronger in Asians (RR = 0.79; 95% CI: 0.59, 0.98) and in cohort design studies (RR = 0.85; 95% CI: 0.71, 0.99). Moreover, high compared with low consumption was significantly associated with a lower pooled risk for milk (RR = 0.89; 95% CI: 0.81, 0.98) and fermented dairy products (RR = 0.78; 95% CI: 0.61, 0.94). However, high compared with low consumption of whole milk was significantly associated with a higher risk (RR = 1.21; 95% CI: 1.04, 1.38). The statistical heterogeneity was considerable. In conclusion, the present meta-analysis suggests a decreased risk of bladder cancer associated with medium consumption of total dairy products and with medium and high consumption of milk and fermented dairy products. An increased risk of bladder cancer was observed with high consumption of whole milk. Interpretations of the results should be made with caution. This review was registered at www.crd.york.ac.uk/prospero as CRD42018097020.

Milk and Dairy Product Consumption and Prostate Cancer Risk and Mortality: An Overview of Systematic Reviews and Meta-analyses.

Milk and dairy product consumption has been associated with an increase in prostate cancer risk; however, discrepancies have been observed in the literature. This first overview of systematic reviews and meta-analyses was carried out with the main objective of compiling and discussing the evidence generated to date related to milk and dairy product consumption and prostate cancer risk and mortality. A systematic search in MEDLINE, EMBASE, the Cochrane Central Register of Controlled Trials, the Cochrane Database of Systematic Reviews, and the Web of Science (from inception to 30 April 2018) was conducted. The inclusion criteria were as follows: adult men, meta-analyses of longitudinal studies, dairy product consumption, and risk of prostate cancer or related outcomes. The AMSTAR2 checklist was used to evaluate methodological quality. The synthesis methods included dairy product exposure (high compared with low consumption or dose-response), dairy product type (total dairy products, milk, cheese, yogurt, and others), and prostate cancer outcomes (total, nonadvanced, and advanced prostate cancer and mortality) displayed in forest plots. Six meta-analyses were identified. These studies reported on the analysis of the 2 to 32 cohorts (up to 848,395 subjects/38,107 cases; 4-28 y of follow-up) and 2 case-control meta-analyses (12,435 subjects). The meta-analysis quality was valued as mostly "good" according to the AMSTAR2 criteria. All RRs of high compared with low consumption (dose-response) for total prostate cancer ranged from 1.68 to 1.09 (1.07 per 400 g/d) for total dairy products, 1.50 to 0.92 (1.06 to 0.98 per 200 g/d) for milk (whole, low-fat, and skim milk considered separately), and 1.18 to 0.74 (1.10 per 50 g/d) for cheese. RRs have decreased since the first meta-analysis. Statistical heterogeneity generates uncertainty in the observed results (up to I2 = 77.1%). In conclusion, although there are some data indicating that higher consumption of dairy products could increase the risk of prostate cancer, the evidence is not consistent. This review was registered with PROSPERO as CRD42018094737.

[Bioactive food compounds as adjuvants to breast cancer treatment: vitamin D and omega-3]. / Compuestos bioactivos de alimentos como coadyuvantes a los tratamientos de cáncer de mama: vitamina D y omega-3.

INTRODUCTION: breast cancer (BC) is the most commonly diagnosed tumor in women and it continues to be the leading cause of cancer death in women. Quality of life decreases significantly during treatment and in the survivors. There is growing evidence linking the intake of certain foods, or their bioactive compounds, with better prognosis of the disease or improvements in physiological parameters that can increase BC patients' quality of life. But there are hardly any reviews to clarify the scientific evidence. OBJECTIVES: gathering and summarizing the available evidence on the effectiveness of the dietary compounds use as coadjuvants for BC treatment. METHOD: literature search using Pubmed to identify and analyze bioactive compounds as coadjvants for BC treatment. RESULTS: all tested compounds showed antitumor effects in vitro. Vvitamin D decrease risk of bone fracture, and marine lipids may reduce bone resorption and inflammation. CONCLUSION: there are bioactive compounds with potential to improve the quality of life of women with BC. Vitamin D a marine lipids provide a solid quality scientific evidence. Despite this, more controlled clinical trials are required to establish a direct link between the use of these compounds and the tumor progression or patient survival.

INTRODUCCIÓN: el cáncer de mama (CM) es el tumor más diagnosticado en mujeres y la primera causa de muerte por cáncer en este grupo de población. La calidad de vida disminuye durante los tratamientos, así como a largo plazo en las supervivientes. Numerosos estudios relacionan la ingesta de algunos alimentos o sus compuestos bioactivos con un mejor pronóstico de la enfermedad o mejoras en la calidad de vida de pacientes con CM, pero apenas existen revisiones que permitan aclarar la evidencia científica. OBJETIVOS: agrupar y sintetizar la evidencia disponible sobre la efectividad del empleo de compuestos bioactivos de alimentos como coadyuvantes del tratamiento del CM. MÉTODOS: revisión bibliográfica mediante sistema de búsqueda PubMed para la identificación y estudio de compuestos bioactivos con posible efecto coadyuvantes en el tratamiento de CM. RESULTADOS: todos los compuestos analizados mostraron efectos antitumorales in vitro. La vitamina D contribuye a reducir las fracturas óseas. Los lípidos marinos disminuyen la resorción ósea y la inflamación. CONCLUSIÓN: existen compuestos bioactivos con potencial terapéutico para mejorar la calidad de vida de mujeres con CM. La vitamina D y los lípidos marinos son los que presentan mayor evidencia. Sin embargo, se necesitan más ensayos clínicos controlados para confirmar una relación directa entre el empleo de estos compuestos y la evolución tumoral o la supervivencia en CM.

Nutritional Composition Assessment of 3000 Individualized Parenteral Nutrition Bags in a Tertiary Referral Hospital: Current Prescribing Patterns.

Individualized parenteral nutrition is the most specialized type of nutritional support in the hospital setting. The composition and prescribing patterns for parenteral nutrition have evolved due to new emerging scientific evidence. In the last few years, there has been a tendency to increase the nitrogen and lipid content and decrease the carbohydrate content. To assess the prescribing pattern in a tertiary referral hospital in Spain, the nutritional composition of individualized parenteral nutrition was evaluated retrospectively from January to December of 2016. A total of 3029 parenteral nutrition units were analysed, corresponding to 257 hospitalized adult patients. Medical specialists in General Surgery and Haematology were the most common petitioners. The three most frequently prescribed parenteral nutrition formulae contained 13.4 (28.8%), 15.7 (19.54%) and 17.9 (17.79%) g of nitrogen. The quantity of carbohydrates and lipids showed a mean non-protein calories-to-nitrogen ratio of approximately 78:1 and a carbohydrate-to-lipid ratio that was near 50:50 in most cases. These results suggest a trend towards the administration of parenteral nutrition with a high content of nitrogen and smaller proportion of the non-protein components.

New, Immunomodulatory, Oral Nutrition Formula for Use Prior to Surgery in Patients With Head and Neck Cancer: An Exploratory Study.

BACKGROUND: The perioperative use of immunomodulatory nutrition formulas in patients with head and neck cancer reduces the number of postoperative infections and the length of hospital stay. OBJECTIVE: An exploratory, randomized, controlled, blind, clinical trial was designed to examine the effect of the preoperative consumption of a new, immunomodulatory, oral nutrition formula in patients with head and neck cancer. METHODS: Thirty-eight patients were randomized to receive either 400 mL/d of either the new immunomodulatory formula (IF) or that commonly used in clinical practice (CF) over 10 days prior to surgery. Thirty-three patients completed the study. Compliance, tolerance, the length of hospital stay, the incidence of infections and noninfectious complications before discharge, and the same up to 15 and 30 days after discharge were recorded. RESULTS: The percentage of patients who developed infections before discharge was significantly lower in the IF than in the CF group (P = .013), as was the number of infections/100 patients/d (P = .035). The length of hospital stay was significantly shorter in the IF group (P = .001). Both formulas were safe and well tolerated. No other differences were detected. These results suggest preoperative consumption of the new formula to be beneficial for patients with neck and head cancer. Further trials are needed to confirm these results and to test the efficacy of the formula in patients with other conditions. CONCLUSION: The new formula can be safely prescribed as part of the preoperative treatment of patients with head and neck cancer and might reduce the problem of postoperative infection.

Growth Hormone Protects the Intestine Preserving Radiotherapy Efficacy on Tumors: A Short-Term Study.

The efficacy of radiotherapy on tumors is hampered by its devastating adverse effects on healthy tissue, particularly that of the gastrointestinal tract. These effects cause acute symptoms that are so disruptive to patients that they can lead to interruption of the radiotherapy program. These adverse effects could limit the intensity of radiation received by the patient, resulting in a sublethal dose to the tumor, thus increasing the risk of tumor resistance. The lack of an effective treatment to protect the bowel during radiation therapy to allow higher radiation doses that are lethal to the tumor has become a barrier to implementing effective therapy. In this study, we present a comparative analysis of both intestinal and tumor tissue in regard to the efficacy and the preventive impact of a short-term growth hormone (GH) treatment in tumor-bearing rats as a protective agent during radiotherapy. Our data show that the exogenous administration of GH improved intestinal recovery after radiation treatment while preserving the therapeutic effect against the tumor. GH significantly increased proliferation in the irradiated intestine but not in the irradiated tumors, as assessed by Positron Emission Tomography and the proliferative markers Ki67, cyclin D3, and Proliferating Cell Nuclear Antigen. This proliferative effect was consistent with a significant increase in irradiated intestinal villi and crypt length. Furthermore, GH significantly decreased caspase-3 activity in the intestine, whereas GH did not produce this effect in the irradiated tumors. In conclusion, short-term GH treatment protects the bowel, inducing proliferation while reducing apoptosis in healthy intestinal tissue and preserving radiotherapy efficacy on tumors.

[Fiber-type indication among different pathologies]. / INDICACIONES DE DIFERENTES TIPOS DE FIBRA EN DISTINTAS PATOLOGÍAS.

INTRODUCTION: Fiber definition includes all those carbohydrates which are not digested nor absorbed in the upper gastrointestinal tract allowing them to reach the colon with no previous processing. Traditionally fiber has been classified according to their solubility into soluble and insoluble and different physiological properties have been defined for each type. The physiologic role of the fiber intake has been studied in diabetes, dyslipidemia or obesity. Fiber intake has also demonstrated to be beneficial in the prevention of many neoplastic diseases like colorectal cancer. It´s also known that fiber plays an important role in the faecal excretion of nitrogen. AIM: To evaluate the current evidence that fiber intake plays in the management and prevention of several different diseases, being able to determine, if possible, the most recommended fiber type for each clinical condition. METHODS: A non-systematic review by searching the Medline and Pubmed was made and studies which met the inclusion criteria were identified and selected for analysis. RESULTS: Different fiber types can be useful for the treatment of several gastrointestinal diseases like constipation, diarrhea, irritable bowel syndrome, ulcerative colitis remission or short bowel syndrome. Patients diagnosed with diabetes, obesity, hyperlipidemia, hypertension and other cardiometabolic diseases can get a clinical improvement with soluble fiber intake. Dietary fiber has demonstrated to play a role in the prevention of colorrectal cancer and other neoplastic diseases. Patients with hepatic encephalopathy or chronic kidney disease will also benefit from fermentable fiber intake. DISCUSSION: Fiber plays an important role in the prevention and treatment of many clinical conditions. However further investigations are needed to establish specific fiber intake recommendations.

Introducción: la fibra engloba los carbohidratos no digeridos ni absorbidos en el tubo digestivo, llegando intactos al colon. Se clasifica en soluble e insoluble, con propiedades fisiológicas distintas. La fibra se ha empleado frecuentemente para tratar y prevenir diversas patologías gastrointestinales. También se ha estudiado su papel en la fisiopatología de enfermedades como la diabetes, la dislipemia, la hipertensión arterial y la obesidad. Además se ha relacionado su consumo con la prevención de ciertos tumores, en especial del cáncer colorrectal, así como con el aumento de la excreción de nitrógeno en heces. Objetivos: analizar la evidencia del papel que la fibra puede tener en el tratamiento y prevención de distintas enfermedades, así como el tipo de fibra más adecuado en cada una. Métodos: revisión no sistemática en Medline y Pubmed, y posterior aplicación de los criterios de inclusión y exclusión. Resultados: diferentes tipos de fibra pueden ser útiles en el tratamiento de enfermedades gastrointestinales, como el estreñimiento, la diarrea, el síndrome de intestino irritable, la colitis ulcerosa en remisión o el síndrome de intestino corto. Los pacientes con diabetes, obesidad, hiperlipidemia, hipertensión y enfermedad cardiovascular también pueden beneficiarse del consumo principalmente de fibra soluble. La fibra alimentaria ha demostrado prevenir el cáncer de colon y otros tumores. En pacientes con encefalopatía hepática o insuficiencia renal, la fibra fermentable ha demostrado beneficios. Conclusiones: la fibra tiene un papel importante en la prevención y tratamiento de múltiples enfermedades; sin embargo, son necesarios más estudios de calidad para poder realizar recomendaciones más específicas.

Change in weight and body composition in obese subjects following a hypocaloric diet plus different training programs or physical activity recommendations.

The aim of the present study was to compare the effects of different physical activity programs, in combination with a hypocaloric diet, on anthropometric variables and body composition in obese subjects. Ninety-six obese (men: n = 48; women: n = 48; age range: 18-50 yr) participated in a supervised 22-wk program. They were randomized into four groups: strength training (S; n = 24), endurance training (E; n = 26), combined strength + endurance training (SE; n = 24), and physical activity recommendations (C; n = 22). In addition, all groups followed the same hypocaloric diet. At baseline and at the end of the intervention, dietetic and physical activity variables were assessed using validated questionnaires. Anthropometric variables were recorded along with body composition variables measured using dual-energy X-ray absorptiometry techniques. At the end of the intervention, significant improvements were seen within groups in terms of body weight (S: -9.21 ± 0.83 kg; E: -10.55 ± 0.80 kg; SE: -9.88 ± 0.85 kg; C: -8.69 ± 0.89 kg), and total fat mass (S: -5.24 ± 0.55%; E: -5.35 ± 0.55%; SE: -4.85 ± 0.56%; C: -4.89 ± 0.59%). No differences were seen between groups at this time in terms of any other anthropometric or body composition variables examined. All groups increased their total physical activity in metabolic equivalents (MET) per week during the intervention, but with no difference between groups (S: 976 ± 367 MET-min/wk; E: 954 ± 355 MET-min/wk; SE: 1 329 ± 345 MET-min/wk; C: 763 ± 410 MET-min/wk). This study shows that, when combined with a hypocaloric diet, exercise training and adherence to physical activity recommendations are equally effective at reducing body weight and modifying body composition in the treatment of obesity (Clinical Trials Gov. number: NCT01116856).

[Predictor variables for low adherence to a lifestyle modification program of overweight treatment in primary health care]. / Variables predictoras de baja adherencia a un programa de modificación de estilos de vida para el tratamiento del exceso de peso en atención primaria.

OBJECTIVES: To identify predictive variables of low adherence to a pilot Lifestyle Modification Program (LMP) for overweight and obesity treatment in primary health care (PC ). MATERIAL AND METHODS: Sixty subjects with BMI > 27 kg/m(2) were recruited. Health professionals directed the program in a group structure and biweekly, based on nutrition education with individualized dietary guidelines, promotion of physical activity and motivational support. A validated questionnaire on lifestyle habits for overweight and obesity subjects was used to identify variables related with program adherence and anthropometric variables were measured before and 6 months after intervention. Low adherence was considered when patients attended to less than 80% of visits. RESULTS: Twenty-seven subjects (45%) presented high adherence to the program. The variables associated to low adherence were related to baseline with IMC ≥ 35 kg/m(2) (p < 0.05); ex smoker period ≤ 4 months (p < 0.01); high caloric diet (p < 0.01) and scarce physical activity (p < 0.05). At 6 months the subjects who finalized the program presented a significant decrease of weight (86.0 ± 15.6 vs 79.2 ± 13.4 kg; p < 0,001); fat mass percentage (41,6 ± 4,6 vs 38.8 ± 5,4%; p < 0.001), blood glucose (108 ± 45.48 vs 94.38 ± 11.97 mg/dl; p < 0.01). It also improved caloric diet profile, above all decreasing the percentage of fat (39.6 ± 4.8 vs 35.5 ± 5.6%; p < 0.01). CONCLUSION: Have recently left smoking, obesity degree two or higher, a high caloric diet and scarce physical activity were basal variables identified as predictive of a low adhesion to a LMP for the treatment of overweight and obesity in primary health care. We do not consider this pilot experience as satisfactory and other new strategies are under development.

Objetivos: Identificar variables predictoras de baja adherencia a un programa piloto de Modificación de Estilos de Vida (MEV) para el tratamiento del exceso de peso en Atención Primaria (AP). Material y métodos: Se reclutaron 60 sujetos con IMC > 27 kg/m2. Profesionales sanitarios dirigieron el programa, en formato grupal y con una periodicidad quincenal, basado en educación nutricional, pautas dietéticas individualizadas, promoción de actividad física y apoyo motivacional. Para identificar las variables relacionadas con la adherencia al programa se utilizó un cuestionario validado sobre Hábitos de Vida de personas con Sobrepeso y Obesidad y se midieron variables antropométricas al inicio y a los seis meses del tratamiento. Una baja adherencia al programa fue considerada cuando los sujetos del estudio acudían a menos del 80% de las visitas quincenales. Resultados: Se adhirieron al programa 27 sujetos (45%). Las variables asociadas a baja adherencia estuvieron relacionadas al inicio del estudio con IMC ≥?35 kg/m2 (p < 0,05); período de exfumador =?4 meses (p < 0,01); mayor contenido calórico de la dieta (p < 0,01) y menor práctica de ejercicio físico (p < 0,05). A los 6 meses los sujetos que finalizaron el programa presentaron una disminución significativa de: peso (86,0 ± 15,6 vs 79,2 ± 13,4 kg; p < 0,001);% de masa grasa (41,6 ± 4,6 vs 38,8 ± 5,4%; p < 0,001) y glucemia (108 ± 45,48 vs 94,38 ± 11,97 mg/dl; p < 0,01). Además mejoró el perfil calórico de su dieta, disminuyendo sobretodo el porcentaje de grasa sobre el valor calórico total (39,6 ± 4,8 vs. 35,5 ± 5,6%; p < 0,01). Conclusión: Haber dejado de fumar recientemente, padecer obesidad de grado dos o superior, el alto contenido calórico de la dieta y la menor práctica de ejercicio físico fueron las variables basales identificadas como predictoras de una baja adherencia a un programa de MEV para el tratamiento de sobrepeso y obesidad en AP. Esta experiencia piloto una vez evaluada no la consideramos satisfactoria y otras nuevas estrategias están en fase de desarrollo.

[Vitamin D intake in a representative sample of Spanish population aged 7-16 years. Differences in the contribution and in the food sources of the vitamin according to age]. / Ingesta de vitamina D en una muestra representativa de la población española de 7 a 16 años. Diferencias en el aporte y las fuentes alimentarias de la vitamina en función de la edad.

BACKGROUND: Vitamin D can play an important role in maintaining bone health and in the prevention of some diseases. Few foods are a natural source of vitamin D and these are not normally consumed, being the most common oily fish and yolk. AIM: To analyze the intake and sources of vitamin D in schoolchildren aged 7-16 years. METHODS: A representative sample of the Spanish population aged 7-16 years (n = 1,976) selected from ten Spanish provinces was studied. Dietary data were obtained by using a 3-day food record. The body weight and height were measured. RESULTS AND DISCUSSION: Mean vitamin D intake (1.63 (0.96-3.35) µg/day) was lower than the recommended intake (RI) in 85.4% of study participants and it was influenced by age (OR = 0.935; IC: 0.889-0.983; p < 0.01). The main sources of vitamin D were eggs (27.7%), followed by cereals (25.8%), fish (20.9%) and dairy products (12.7%). Additionally, it has been found that vitamin D RI can be adequately covered the greater the consumption of fish is (r = 0.734; p < 0.001). Thereby, an increase of one fish serving decreased a 72.5% the odds of not covering vitamin D RI. CONCLUSIONS: Vitamin D intake is lower than the recommended intake in a high percentage of the participants. Having into account that the contribution of vitamin D is mainly determined by fish, an increase in the consumption of this food group would be desirable. Young children merit special attention.

Introducción: La vitamina D juega un importante papel en el mantenimiento de la salud ósea y prevención de la aparición de diversas enfermedades. Muy pocos alimentos son fuente natural de esta vitamina y, además, éstos no se consumen de manera habitual, siendo las fuentes dietéticas más importantes el pescado azul y la yema del huevo. Objetivos: Analizar la ingesta y las fuentes de vitamina D en escolares de 7-16 años. Métodos: Se estudió una muestra representativa de la población española de 7 a 16 años (n = 1.976), seleccionada en diez provincias españolas. El estudio dietético se realizó por registro del consumo de alimentos durante 3 días. Los parámetros antropométricos estudiados fueron el peso y la talla. Resultados y discusión: La ingesta media de vitamina D (1,63 (0,96-3,35) µg/día) fue inferior a la recomendada (IR) en un 85,4% de los estudiados, estando influenciada por la edad (OR = 0,935; IC: 0,889-0,983; p < 0,01). La principal fuente de vitamina D fueron los huevos (27,7%) seguidos de cereales (25,8%), pescados (20,9%) y lácteos (12,7%). Además, se ha observado que es más fácil cubrir las ingestas recomendadas de vitamina D cuanto mayor es el consumo de pescado (r = 0,734; p < 0,001), y que por cada ración que aumenta el consumo de este grupo de alimentos el riesgo de no cubrir las IR de vitamina D disminuye un 72,5%. Conclusiones: La ingesta de vitamina D es inferior a la recomendada en un elevado porcentaje de los estudiados. Teniendo en cuenta que los pescados juegan un importante papel en el aporte de vitamina D de los niños y adolescentes españoles, aumentar el consumo de este grupo de alimentos resulta deseable. Los niños de menor edad merecen atención especial.