Soporte nutricional especializado en un paciente con úlceras por presión: un informe de caso / Specialized nutritional support in a patient with pressure ulcers: a case report

Las úlceras por presión son lesiones de la piel y/o del tejido subyacente. El soporte nutricional adecuado constituye parte del tratamiento de estas lesiones. El objetivo de este reporte es demostrar la eficacia del soporte nutricional como factor coadyuvante en la recuperación de éstas. Paciente masculino de 29 años de edad que ingresó al hospital con diagnóstico de neuroinfección. Durante su estadía desarrolló una úlcera en la región sacra. Fue tratado con nutrición enteral por sonda nasoentérica que incluyó dieta y soporte nutricional hiperproteicos enriquecido con glutamina y arginina; posteriormente se brindó colágeno hidrolizado. A los 36 días tras la aparición de la úlcera, ésta es recuperada. Luego de 4 meses, el paciente fue dado de alta. La intervención nutricional fue crucial en la recuperación de la úlcera. Se enfatiza la necesidad de prevenirlas a través de un monitoreo oportuno y adecuado.

Pressure ulcers are injuries to the skin and / or the underlying tissue. Opportune nutritional support is part of the treatment of these injuries. This report aims to demonstrate the efficacy of nutritional support as a contributing factor in this ulcer recovery. A 29-year-old male patient was admitted to the hospital with a diagnosis of neuroinfection. During his stay, he developed a pressure ulcer in the sacral region. He was treated with enteral nutrition via a nasoenteric tube that included a hyperprotein diet and nutritional support enriched with glutamine and arginine; subsequently, hydrolyzed collagen was provided. Thirty-six days after the development of the pressure ulcer, it has recovered. After four months, the patient was discharged. The nutritional intervention was crucial in the recovery of UPP. The need to prevent this type of ulcers through timely and adequate monitoring is emphasized.

Effects of enteral nutrition assisted therapy in preventing postoperative anastomotic fistula in patients with esophageal cancer and its influence on immunity,healing process and nutritional recovery / 中国免疫学杂志

Objective:To investigate the effects of enteral nutrition assisted therapy in preventing postoperative anastomotic fistula in patients with esophageal cancer and its influence on immunity,healing process and nutritional recovery.Methods: The clinical data of 90 cases of patients with esophageal cancer who underwent surgical treatment were retrospectively analyzed.According to the mode of postoperative nutritional support,the patients were divided into group A(n=34),B(n=30)and C(n=26)three groups.Group A was treated by immune-enhancing enteral nutrition(Supportan)assisted therapy.Group B was treated with routine enternal nutrition(Nutrison Fibre)assisted therapy.Both of the two groups were treated with 25%,50% and 100% of the full dose on the 1st,2nd and 3rd-7th day after surgery.Later,the dose was reduced day by day till normal diet.Group C was treated by parenteral nutrition assisted therapy.Since the 1st day after surgery,patients in group C were intravenously injected with glucose,vita min and a mino acid mixed liquid calculated by 125.52 kJ/kg.8-10 d later,patients gradually transited to the normal diet.The incidence rates of anastomotic fistula,pulmonary infection and incision infection,wound healing time,total hospitalization time and initial exhaust time were observed and compared between the three groups.The changes of immune index [T lymphocytes and its subsets(CD3+,CD4+,CD8+)],inflammatory factors[C reactive protein(CRP),IL-6]and nutrition indexes[serum total protein(TP),albumin(ALB)]before surgery,on the 1st and 8th day after surgery were recorded.Results: ①There were significant differences in the incidence rates of postoperative anastomotic fistula and pulmonary infection between the three groups(P0.05).On the 8th day after surgery,the nutrition indexes in the three groups were still significantly lower than those before surgery.However,those in group A and B were significantly higher than those in group C(P0.05).The levels of CD3+,CD4+,CD4+/CD8+ in the other two groups were lower than those before surgery while CD8+ level was higher than that before surgery(P<0.05).Conclusion: To apply enteral nutrition assisted therapy in patients with esophageal cancer after surgery can effectively improve the prognosis.It has positive effects on shortening the healing process,improving the immune function and improving the nutritional status.

Efecto biológico de la recuperación nutricional en las concentraciones séricas de citocinas inflamatorias en el niño desnutrido grave / Biological effect of nutritional recovery on serum concentrations of inflammation cytokines in the malnourished child

El niño con desnutrición grave tiene una disfunción de la respuesta inmune que puede aumentar de manera significativa la morbilidad y la mortalidad por infecciones. El objetivo de la presente investigación fue evaluar el efecto de la recuperación nutricional en las concentraciones séricas de citocinas inflamatorias; tales como: interleucina 12 (IL-12), interleucina 17 (IL-17), interferón gamma (IFN-γ) y factor de necrosis tumoral alfa (TNF-α). En un estudio de tipo prospectivo y longitudinal, se seleccionó la población con base a criterios clínicos y antropométricos, constituida por 24 niños desnutridos graves en edades comprendidas entre 1 y 2 años, quienes formaban parte de un programa de recuperación nutricional. La concentración sérica de las citocinas investigadas se determinó antes y después del tratamiento nutricional, empleando la técnica de Inmunoanálisis Enzimático (ELISA) de doble anticuerpo. Para establecer comparaciones se utilizó la t de Student, y se consideró una p<0,05 como estadísticamente significante. Se observó una diferencia en las concentraciones de IL-12, IL-17, IFN-γ y TNF-α antes y después del tratamiento (p<0,05), lo cual parece indicar que la desnutrición per se provoca un estado inflamatorio y que 2 meses de apoyo nutricional intensivo, favorecen no solo la recuperación clínica del niño desnutrido grave, sino también la recuperación de su respuesta inmunitaria en cuanto a la producción de mediadores solubles como son las citocinas.

Children with severe malnutrition have a dysfunction of the immune response that can significantly increase morbidity and mortality from infections. The aim of this investigation was to evaluate the effect of nutritional recovery in serum measurements of inflammatory cytokines; such as interleukin 12 (IL-12), interleukin 17 (IL-17), interferon gamma (IFN-γ) and tumor necrosis factor alpha (TNF-α). In a prospective and longitudinal study, 24 severe malnourished children aged between 1 and 2 years-old, who were part of a program of nutritional recovery, were selected based on clinical and anthropometric criteria. Serum measurements of cytokines were determined before and after dietary treatment, using the technique of sandwich Enzyme-Linked ImmunoSorbent Assay (ELISA). For comparisons, Student’s t test was used, considered p <0.05 as statistically significant. A difference was observed in the concentrations of IL-12, IL-17, IFN-γ and TNF-α before and after treatment (p <0.05), which suggests that malnutrition provokes an inflammatory state and two months of intensive nutritional support, not only promotes the clinical recovery of severe malnourished children, but also the recovery of the immune response with regard to the production of soluble mediators, such as cytokines.

Evolution of the biochemical profile of children treated or undergoing treatment for moderate or severe stunting: consequences of metabolic programming? / Evolução do perfil bioquímico de crianças tratadas ou em tratamento para déficit estatural moderado ou grave: consequências da programação metabólica?

OBJECTIVE: to evaluate changes in the biochemical profile of children treated or being treated for moderate or severe stunting in a nutrition recovery and education center. METHODS: this was a retrospective longitudinal study of 263 children treated at this center between August of 2008 to August of 2011, aged 1 to 6 years, diagnosed with moderate (z-score of height-for-age [HAZ] < -2) or severe stunting (HAZ < -3). Data were collected on socioeconomic conditions, dietary habits, and biochemical changes, as well as height according to age. RESULTS: the nutritional intervention showed an increase in HAZ of children with moderate (0.51 ± 0.4, p = 0.001) and severe (0.91 ± 0.7, p = 0.001) stunting during the monitoring. Increased levels of insulin-like growth factor 1 (IGF-1) (initial: 71.7 ng/dL; final: 90.4 ng/dL; p = 0.01) were also observed, as well as a reduction in triglycerides (TG) in both severely (initial: 91.8 mg/dL; final: 79.1 mg/dL; p = 0.01) and in moderately malnourished children (initial: 109.2 mg/dL; final 88.7 mg/dL; p = 0.01), and a significant increase in high-density lipoprotein cholesterol HDL-C only in the third year of intervention (initial: 31.4 mg/dL; final: 42.2 mg/dL). The values of total cholesterol (TC) and low-density lipoprotein cholesterol (LDL-C) levels remained high throughout the treatment (initial: 165.1 mg/dL; final: 163.5 mg/dL and initial: 109.0 mg/dL; final: 107.3 mg/dL, respectively). CONCLUSION: the nutritional treatment for children with short stature was effective in reducing stunting and improving TG and HDL-C after three years of intervention. However, the levels of LDL-C and TC remained high even in treated children. It is therefore speculated that these changes may result from metabolic programming due to malnutrition. .

OBJETIVO: avaliar as mudanças no perfil bioquímico de crianças tratadas ou em tratamento para déficit estatural moderado ou grave em um centro de recuperação e educação nutricional. MÉTODOS: estudo longitudinal retrospectivo com 263 crianças semi-internas no Centro no período de agosto/2008 a agosto/2011, com idade entre 1 e 6 anos e diagnóstico de déficit estatural moderado, escore-Z da altura-para-idade (AIZ) < -2 e grave (AIZ < -3). Foram coletados dados socioeconômicos, dietéticos e bioquímicos e a evolução estatural segundo a idade. RESULTADOS: com a intervenção nutricional observou-se incremento no escore-z das crianças com déficit estatural moderado (0,51 ± 0,4; p = 0,001) e grave (0,91 ± 0,7; p = 0,001) durante o período de acompanhamento. Observou-se, ainda, aumento nos níveis de fator de crescimento insulina-símile (IGF-1) (inicial: 71,7 ng/dL; final: 90,4 ng/dL; p = 0,01), redução nos triglicérides (TG) tanto nas crianças graves (inicial: 91,8 mg/dL; final: 79,1 mg/dL; p = 0,01) como nas moderadamente desnutridas (109,2 mg/dL para 88,7 mg/dL; p = 0,01) e aumento significativo do lipoproteína de alta densidade (HDL-C) apenas no terceiro ano de intervenção (inicial: 31,4 mg/dL; final: 42,2 mg/dL). Os valores de colesterol total (CT) e lipoproteína de baixa densidade (LDL-C) continuaram elevados durante todo o tratamento (inicial: 165,1 mg/dL; final: 163,5 mg/dL e inicial: 109,0 mg/dL; final: 107,3 mg/dL, respectivamente). CONCLUSÃO: o tratamento nutricional para as crianças de baixa estatura mostrou-se eficaz na redução do déficit estatural e dos TG e melhora dos níveis de HDL-C após três anos de intervenção. Porém, os níveis de LDL-C e CT mostraram-se sempre elevados mesmo nas ...

La anemia como signo de malnutrición en niños de un programa de recuperación nutricional domiciliaria en Antioquia, Colombia / Anemia as a sign of malnutrition in children belonging to the home nutritional recovery program in Antioquia, Colombia

Introducción: En América Latina y el Caribe el 10% de la población de presenta desnutrición y el 16% en niños menores de cinco años. Objetivo: Identificar la anemia como signo de malnutrición en niños del programa de recuperación nutricional domiciliaria del Hospital San Juan de Dios de Santa Rosa de Osos, Antioquia. Materiales y métodos: Estudio descriptivo transversal, que incluyó 33 niños (0-10 años) del programa y fueron excluidos pacientes anémicos por otra causa. Se realizaron hemoleucogramas analizando valores de hemoglobina, hematocrito, presencia de anemia y su clasificación. El MUAC Mid-Upper Arm Circumference se empleó para valorar el estado nutricional de la población. Otras medidas antropométricas utilizadas fueron el peso en kilogramos y talla en centímetros e IMC (Indice de Masa Corporal). Se realizó una base de datos en el programa SPSS versión 19.0 para el análisis así: las variables cuantitativas con nivel de razón, promedios y desviaciones estándar (DE) y variables cualitativas en porcentajes. La investigación contó con el aval ético de la institución. Resultados: El 51% de los pacientes incluidos en el estudio fueron de sexo femenino, la edad promedio fue 3.5 años, el 97% correspondieron a estratos socioeconómicos 1- 2 y cuatro de cada cinco pacientes pertenecían al régimen contributivo. El 8.6% padecían desnutrición global y el 23% bajo peso. Se encontró la hemoglobina con promedio de 12.3 g/dL y el hematocrito 37.3%. En los niños con anemia, en más de la tercera parte, se evidenció microcitosis e hipocromía. Conclusión: Los valores antropométricos se relacionan con valores límites de la hemoglobina y la presencia de anemia microcítica hipocrómica.

Introduction: 10% of the population present malnutrition in Latin America and the Caribbean and 16% in children under five. Objective: To identify anemia as a sign of malnutrition in children belonging to the home nutritional recovery program from San Juan de Dios Hospital in Santa Rosa de Osos, Antioquia. Materials and methods: A cross-sectional study which included 33 children (0-10 years) from the program was carried out. Anemic patients for other reasons were excluded. Full blood counts were done using values of hemoglobin, hematocrit, presence of anemia and its classification for analysis. The MUAC (Mid-Upper Arm Circumference) to assess the nutritional status of the population was employed. Other anthropometric measures used were the weight in kilograms and height in centimeters and BMI (Body Mass Index). A database in the program SPSS version 19.0 was done for the analysis of information. The quantitative variables with the level of reason, averages and standard deviations (SD) were analyzed and qualitative variables were expressed in percentages. The research had the ethical approval from the institution. Results: 51% of patients included in the study were female, and the average age was 3.5 years, 97% corresponded to 1 and 2 socioeconomic strata and four out of five patients belonged to the contributory scheme. The 8.6% suffered from global malnutrition and the 23% suffered from underweight. Hemoglobin with average of 12.3 g/dL and hematocrit 37.3% were found. In children with anemia, in more than a third, hypochromia and microcytosis were evident. Conclusion: anthropometric values relate to limiting values of hemoglobin and the presence of hypochromic microcytic anemia.

Spirulina as a protein source in the nutritional recovery of Wistar rats

This study was aimed at evaluating the effects of Spirulina (Arthrospira) as a protein source in the nutritional recovery of rats subjected to protein malnutrition. In order to understand such effects, responses of the developing body, serum biochemical profile, and blood count of animals were analyzed. A total of, 23 Wistar Rattus norvegicus were given a proteic diet (AIN-93G adapted) in malnutrition phase (phase I) for 10 days. After this period, the rats were separated into four groups according to the protein source (recovery phase): Control (C), casein 12%; Spirulina level I (S1), Spirulina 8.8% + casein 5.0%; Spirulina level II (S2), Spirulina 17.6% + casein 0.15%, and Spirulina level III (S3), Spirulina 26.4%. Recovery phase (phase II) lasted 30 days. In both the phases, the consumption and body weight of the rats were monitored daily and weekly, respectively. The S1 treatment showed the highest values of Feed Efficiency Ratio (FER) and Quotient of Protein Efficiency Ratio (QPE) (p<0.05). Significant differences among the treatments were found mainly in the levels of serum lipids, and S2 diet caused an increase in such responses (p<0.05). These results demonstrated that the nutritional recovery of animals was enabled by different concentrations of Spirulina.

Efecto del Lactobacillus rhamnosus GG en la recuperación inmunonutricional de niños desnutridos graves / Effect of Lactobacillus rhamnosus GG in immune-nutritional recovery of severely malnourished children

Objetivos: valorar el efecto del Lactobacillus rhamnosus GG en la recuperación inmunitaria a medición celular y nutricional de niños desnutridos graves. Métodos: Estudio experimental aleatorio, doble ciego, controlado en niños desnutridos graves internados en el CRIN del Hospital del Niñ@ Manuel Ascencio Villarroel de Cochabamba, Bolivia. Ingresaron al estudio previo consentimiento de padres, 44 niños con desnutrición grave de acuerdo a criterios de inclusión y exclusión, (21 niños grupo estudio: 23 niños grupo control). Evaluados por antropometría, desarrollo psicomotor, respuesta inmunitaria con recuento de subpoblaciones linfocitarias CD3, CD1a, CD71, ecografía del timo y monitorización con estrategia CLAPSEN. El grupo de estudio recibió 108/g día de Lactobacillus rhamnosus GG durante tres días y dieta estandarizada con micronutrientes. El grupo control recibió la misma dieta y placebo. Se analizó los datos con SPSS 19. Resultados: los niños del grupo estudio mejoraron P/TZ= 0,71 ±0,99 DE (p<0,001) IC 95% (1,7-045); el grupo control P/TZ =-1,83±1,15 DE, PBZ,T/EZ, PCZ sin diferencia significativa. El desarrollo de área motora fina: 69±15,31 vs grupo control: 60,39±14,5 (p <0,06) IC 95% (0,46-17,6). Hubo menor incidencia de infecciones, sin diferencia significativa, el tiempo de recuperación se redujo a 24,28±2,1 días (P <0,001) vs. 33,17±2,80 días del grupo control. Se constató reducción de poblaciones linfocitarias inmaduras con mejor distribución, y mayor superficie del timo 489,61 ±163,68 vs. 372,85±84,12 del grupo control. Conclusiones: los Lactobacillus rhamnosus GG mejoran y acortan el tiempo de recuperación nutricional y la respuesta a mediación celular.

Objectives: to assess the effect of Lactobacillus rhamnosus GG in the recovery of cell mediated immune and nutritional satatus of severely malnourished children. Methods: experimental, randomized, double-blind, controlled in severely malnourished children admitted to the CRIN of the Children's Hospital Manuel Ascencio Villarroel in Cochabamba, Bolivia. Entered thestudy with theconsentof parents, 44 children with severe malnutrition according to inclusion and exclusion criteria, (21 children study group: 23 children control group). Assessedbyanthropometry, psychomotordevelopment, immune response, lymphocytecounting subpopulationsCD3,CD1a, CD71 and ultrasonography of the thymus and monitoring with CLAPSEN strategy.The study group received Lactobacillus rhamnosus GG 108/g day in a range of three days and standardized diet with micronutrients. The control group received the same diet and placebo. Data were analyzed with SPSS 19. Results: children in the study group improved P/TZ = 0.71 ± 0.99 SD (p <0.001) IC:95%(1.7- 045), the control group P /TZ =-1.83 ± 1.15 DE, PBZ,T/ EZ, PCZ with no significant difference. The development of fine motor area: 69.00 ± 15.31 vs. control group: 60.39 ± 14.50 (p < 0.06) IC:95% (0.46-17.68).There was a lower incidence of infections, no significant difference; the recovery time wasreduced to 24.28 ± 2.1 days (P ≤ 0.001) vs. 33.17 ± 2.80 days of the control group. It was verified Reductionof immature lymphocyte populations with better distribution and greater surface area of thymus 489.61 ± 163.68 vs.. 372.85 ± 84.12 in the control group. Conclusions: Lactobacillus rhamnosus GG, improve and shorten nutritional recovery time and cell-mediate response.

Avaliação da hemopoese e da resposta imune inata mediada por macrófagos em camundongos submetidos à recuperação nutricional após desnutrição protéica / Evaluation of hematopoiesis and innate immune response mediated by macrophages in mice submitted to nutritional recovery after protein malnutrition

A desnutrição protéico-energética (DPE) afeta mais de 1 bilhão de pessoas no mundo, principalmente crianças, idosos e pacientes hospitalizados. Ela provoca alterações metabólicas e hormonais, além de afetar o tecido hemopoético. O comprometimento da hemopoese provoca anemia e leucopenia, modificando a resposta imune inata e adquirida do organismo. Dessa forma, é comum a associação entre desnutrição e infecção, levando ao comprometimento do tratamento e aumento da morbidade e mortalidade de indivíduos hospitalizados. Após a recuperação nutricional, é relatada a reversão das alterações bioquímicas e hormonais, bem como das alterações na hemopoese e na resposta imune. Porém, muitos resultados são controversos, existindo dúvidas quanto à reversibilidade das alterações. Assim, nos propusemos a avaliar os efeitos da recuperação nutricional nos parâmetros bioquímicos, hormonais, hematológicos e imunológicos em modelo murino de desnutrição. Os animais desnutridos apresentaram perda de peso significativa, redução de proteínas totais, albumina, glicose, insulina e IGF-1, bem como aumento de glutamina plasmática, glutamina sintetase muscular e corticosterona. Houve redução dos parâmetros hepáticos e musculares, bem como alteração na sensibilidade à insulina, evidenciada pelos testes de OGTT e ITT. Todas as alterações descritas caracterizam o quadro de desnutrição. Após a recuperação nutricional, alguns parâmetros foram normalizados, mas as concentrações de glicose, insulina e IGF-1 permaneceram reduzidas. Da mesma forma, as alterações na concentração de DNA hepático e na sensibilidade à insulina permaneceram nos animais renutridos. A pancitopenia periférica e hipocelularidade da medula óssea e do baço observadas nos animais desnutridos foram revertidas após a renutrição. A avaliação de macrófagos peritoniais mostrou reversão parcial do comprometimento da capacidade e adesão e espraiamento, bem como da atividade fungicida nos animais renutridos. A produção de peróxido de hidrogênio continuou baixa após a recuperação nutricional, enquanto a produção de óxido nítrico voltou a aumentar. O comprometimento da produção de citocinas pró-inflamatórias decorrente da desnutrição não foi completamente revertido, visto que, em camundongos Swiss Webster, somente a produção de TNF-α retornou ao normal, enquanto em camundongos C56BL/6J a produção de nenhuma citocina foi restabelecida. A avaliação da via de sinalização do fator de transcrição NFkB mostrou alteração na expressão de MyD88, TRAF-6, IkKß e IkBα em animais desnutridos. Após a recuperação nutricional, algumas dessas proteínas não retornaram ao normal. Os animais desnutridos também apresentaram comprometimento da ativação de NFkB, que não foi normalizada após a recuperação nutricional. Sendo assim, é possível afirmar que o retorno a uma dieta normoprotéica não é suficiente para reverter todas as alterações causadas pela desnutrição

Protein-energy malnutrition (PEM) affects more than 1 billion people worldwide, mainly children, elderly and hospitalized patients. It causes metabolic and hormonal changes, besides affecting hematopoietic tissue. Impaired hematopoiesis causes anemia and leukopenia, modifying innate and acquired immune response of the organism. Thus, it is common the association between malnutrition and infection, leading to impaired treatment and increasing morbidity and mortality in hospitalized patients. After nutritional recovery, it is reported reversal of biochemical and hormonal changes, as well as, reversal of changes in hematopoiesis and immune response. However, many results are controversial, and there are doubts about the reversibility of the changes. Thus, we proposed to evaluate the effects of nutritional recovery biochemical, hormonal, haematological and immunological parameters in a murine model of malnutrition. The malnourished animals showed significant weight loss, reduction in total protein, albumin, glucose, insulin and IGF-1, as well as increased plasma glutamine, corticosterone and muscle glutamine synthetase. There was a reduction in muscle and liver parameters as well as change in insulin sensitivity, evidenced by the tests of OGTT and ITT. All modifications described characterize the malnutrition. After nutritional recovery, there was normalization of some parameters, but the concentrations of glucose, insulin and IGF-1 remained low. Likewise, changes in hepatic DNA concentration and insulin sensitivity remained in renourished animals. Peripheral pancytopenia and hypocellularity in bone marrow and spleen observed in malnourished animals were reversed after refeeding. The evaluation of peritoneal macrophages showed partial reversal of impairment of adhesion and spreading ability, as well as fungicidal activity in animals renourished. The hydrogen peroxide production remained low after nutritional recovery, while nitric oxide production increased again. Impaired production of proinflammatory cytokines due to malnutrition was not completely reversed, whereas in Swiss Webster mice, only the production of TNF-α returned to normal, whereas in C56BL/6J mice no cytokine production was restored. The assessment of the signalling pathway of transcription factor NFkB showed alterations in the expression of MyD88, TRAF-6 IkKß and IkBα in malnourished animals. After nutritional recovery, some of these proteins didn't return to normal. Malnourished animals also showed impaired activation of NFkB, which wasn't normalized after nutritional recovery. Therefore, it is possible to say that the return to a normal diet is not enough to reverse all the changes caused by malnutrition

Efecto de la recuperación nutricional en las concentraciones séricas de óxido nítrico, malonaldehído y tnf alfa en el niño desnutrido grave

Introducción: Como consecuencia de la desnutrición, se producen alteraciones que comprometen la respuesta antioxidante y la inmunocompetencia. El objetivo del presente estudio es evaluar el efecto de la recuperación nutricional sobre las concentraciones séricas de Oxido Nítrico (NO), Malonaldehído (MDA) y TNF-α en el desnutrido grave. Metodología: Se estudiaron prospectivamente 47 niños con edades comprendidas entre 2 meses y 8 años, distribuidos en 27 niños con desnutrición grave de tipo mixto y 20 controles, que asistieron al Servicio de Educación y Recuperación Nutricional del Hospital Chiquinquirá de Maracaibo-Venezuela. El NO y el MDA determinaron por ensayo de Diazotización y derivados del ácido tíobarbitúrico respectivamente, y el TNF-α mediante la técnica de ELISA. Resultados: Las concentraciones de NO y MDA no mostraron diferencias estadísticamente significativas con los controles, no obstante se encontró un descenso en estas concentraciones cuando se compararon con las obtenidas al inicio de la terapia (p ≤ 0,0001 para NO y p ≤ 0,001 para MDA. Los valores séricos de TNF-α presentaron significancia estadística en relación con los controles y al inicio del tratamiento (p < 0,0001). Conclusión: La terapia de recuperación nutricional incide en la disminución de las concentraciones séricas de NO, MDA y TNF-α, debido probablemente a la suplementación de vitaminas y micronutrientes administrados durante dicho tratamiento.

Introduction: Alterations involving antioxidant response and immunological competence are consequences of malnutrition. The aim of this study is to assess the effect of nutritional recovery on serum concentrations of nitric oxide (NO), malonaldehyde (MDA) and TNFα in the severely malnourished child. Methods: 47 children were prospectively studied (2 months to 8 years old): 27 children with mixed type severe malnutrition and 20 controls who attended the Department of Education and Nutritional Recovery at the Chiquinquirá Hospital in Maracaibo-Venezuela. NO and the MDA were determined by Diazotization trial and derivatives of the barbituric acid respectively; TNF-α was assessed by the ELISA technique. Results: NO and MDA concentrations showed no significant difference with controls, although there was a significant decrease with respect to pre-treatment values (p ≤ 0,0001 for NO and p ≤ 0,001 for MDA. Values for TNF-α were significantly different from controls and pre-treatment values (p< 0,0001). Conclusions: Nutritional recovery therapy affects the decrease in serum concentrations of NO, MDA and TNF-α, probably due to the supplementation of vitamins and micronutrients during this treatment.

Aporte calórico-proteico durante la recuperación nutricional y estado nutricional alcanzado / Energy protein intake during nutritional recovery and nutritional status achieved

Hace 30 años los niños chilenos que se recuperaban en CONIN recibían alimentación ad libitum, que podría haber favorecido la aparición de sobrepeso y obesidad (SP/OB). Por este motivo el objetivo de este estudio fue evaluar la relación entre la ingesta energético-proteica durante la recuperación nutricional y la aparición de sobrepeso-obesidad (SP/OB) al alta. Se diseño un estudio retrospectivo, analítico del universo formado por las 168 fichas encontradas de menores de 2 años, desnutridos primarios recuperados en CONIN entre 1977-1982. Se evaluó el estado nutricional por Sempé (referencia de crecimiento utilizada en esos años) y OMS (referencia actual), desde el ingreso hasta el cuarto mes de estadía y al alta. Según referencia de Sempé la desnutrición al ingreso fue 25 por ciento grave, 63 por ciento moderada y 12 por ciento leve; por OMS (P/T) estas cifras eran 14.9 por ciento, 29.2 por ciento y 38.1 por ciento, respectivamente; el resto era eutrófico. Al alta, no había niños con SP/OB por P/E (Sempé), mientras que según P/T, el 6 por ciento tenía SP/OB a los 3 meses de tratamiento y el 13,8 por ciento al alta. La ingesta alimentaria promedio, aportada ad libitum, fue de 148 kcals/Kg/día y 4 g prot/kg/día. Los niños con SP/OB tuvieron mayor ganancia de peso diario (30,3 vs 19,2 g/día) que sus pares no obesos y mayor ganancia de peso diario comparado al promedio para la edad (19,7 vs 8,2 g/día). La alimentación prescrita alcanzó valores elevados dentro del rango utilizado actualmente; la ingesta real, administrada ad-libitum, fue significativamente menor y se asoció a una frecuencia de 13,8 por ciento SP/OB.

Thirty years ago malnourished Chilean children were recovered by CONIN; they were fed ad libitum and this may have favoured the appearance of overweight-obesity (SP/OB). The objective of this study was to evaluate the relationship between energy-calorie intake during nutritional recovery and the appearance of overweight-obesity (SP/OB). The design was a retrospective, analytical study of the universe formed by the 168 clinical records found, of children below 2 years of age, recovered by CONIN between 1977 and 1982. Nutritional status was assessed using the Sempé criteria (applied in the period evaluated) and those of WHO, (currently in use), on admission, after 4 month treatment and on discharge. By Sempé criteria, malnutrition on admission was classified 25 percent severe, 63 percent moderate and 12 percent mild; instead, using WHO standards these figures were 14,9 percent, 29,2 percent y 38,1 percent, respectively; the remaining children were well nourished. On discharge, there was no SP/OB by W/A (Sempé), but by W/H (WHO) 6 percent and 13.8 percent were SP/OB after 3 months and on discharge, respectively. Food intake, administered ad libitum, reached a mean of 148 kcals/kg/d and 4 g prot/kg/d. SP/OB children had greater daily weight gain (30,3 vs 19,2 g/d) than the non-obese children and greater daily weight gain than the mean for age and sex (19,7 vs 8,2 g/día). The prescribed feeding reached values considered high by currently used criteria; actual intake, administered ad-libitum, was significantly lower and was associated with 13.8 percent of children with overweight-obesity at the time of discharge.

Nutritional recovery with rice bran did not modify energy balance and leptin and insulin levels / Recuperação nutricional com farelo de arroz não modificou o balanço energético e os níveis de leptina e insulina

OBJECTIVE: To investigate the effect of nutritional recovery with rice bran on energy balance, leptin and insulin levels. METHODS: Weaned Wistar rats were fed on a 17 percent (Control - C) or 0.5 percent (Aproteic - A) protein diet for 12d. After this, rats were kept on a C diet (C) or recovered with control (Recovered Control - RC) or control plus recovered rice bran diet (Recovered Rice Bran - RRB). RESULTS: Despite the increased food intake, group A exhibited lower carcass fat associated to low serum leptin. RRB and RC groups showed lower carcass weight and energy intake and expenditure. Energy expenditure was positively associated with food intake and carcass weight. Negative correlations between HOMA-IR and energy expenditure and energy intake were observed. CONCLUSION: Nutritional recovery with rice bran did not modify energy balance, leptin and insulin levels.

OBJETIVO: Investigar o efeito da recuperação nutricional com farelo de arroz sobre o balanço energético e níveis de leptina e insulina. MÉTODOS: Ratos Wistar recém-desmamados foram alimentados com 17 por cento (Controle - C) ou 0,5 por cento (Aproteico - A) de proteína (caseína) durante 12 dias. Em seguida, ratos permaneceram com dieta controle (C) ou foram recuperados com controle (Recuperados Controle - RC) ou controle mais 5 por cento de farelo de arroz (Recuperados com Farelo de Arroz - RFA) durante 21 dias. RESULTADOS: Apesar de a ingestão alimentar ter sido maior em A, a gordura na carcaça foi reduzida, sendo associada com menor nível de leptina. Os grupos RFA e RC tiveram redução no peso da carcaça, no gasto e ingestão de energia. O gasto energético foi correlacionado com a ingestão de alimentos e o peso da carcaça fresco. Foi observada correlação negativa entre HOMA-IR com gasto energético e com ingestão de energia. CONCLUSÃO: A recuperação nutricional com farelo de arroz não modificou o balanço energético, nem os níveis de leptina e insulina.

Efecto de la recuperación nutricia sobre la concentración de Interleucina-2 en niños con desnutrición grave

El niño con desnutrición grave tiene una disfunción de la respuesta inmune que puede aumentar de manera significativa la morbilidad y la mortalidad por infecciones. Por ello, el objetivo del presente estudio fue demostrar el efecto del apoyo nutricio intensivo en la concentración en suero y celular de IL-2 y sub-poblaciones de células CD4+, y CD8+ T en niños con desnutrición proteínico-energética grave. En un ensayo clínico se incluyeron 10 niños con desnutrición primaria grave, menores de 48 meses de edad, quienes recibieron una fórmula sin lactosa por alimentación enteral continua por dos semanas y dos semanas más ad libitum. Se obtuvieron la concentración sérica y celular de IL-2 y las sub-poblaciones de linfocitos CD4+ y CD8+ en los casos y en un grupo control (n = 13). Con la prueba t de student pareada se compararon los valores inicial vs. final de los sujetos y se utilizó la prueba U-Mann-Whitney para la comparación con el grupo control. Se rechazó la hipótesis nula con una p < 0,05. Se observó un incremento notable inicial vs. final en el porcentaje de expresión celular de IL-2 (p < 0,001) y en la concentración sérica de esta citocina (p = 0,001). Por tanto, cuatro semanas de apoyo nutricio intensivo fueron suficientes para mostrar un incremento significativo en la producción de IL-2, independientemente de los nutrimentos involucrados, aunque aparentemente este incremento dependió de la gravedad de la DPE.

Effect of the nutritional recovery on the concentration of Interleukin-2 in severely malnourished children. The severely malnourished child has dysfunction of the immune response that may increase the risk of morbidity or mortality due to infectious diseases, therefore, the purpose of this study was to demonstrate the effect of intensive nutritional support on the cellular and serum concentration of IL-2 and CD4+, as well as CD8+ T cells in children with severe protein energy malnutrition. A clinical assay was carried out in a tertiary care hospital. 10 severely malnourished children < 48 months of age who received formula without lactose via enteral feeding for two weeks and ad libitum for an additional two weeks were included. Cellular and serum concentrations of IL- 2 and the subpopulation of CD4+ and CD8+ were obtained. A control group (n = 13) was included. A paired student t test for initial-final determinations and the Mann-Whitney Test for comparison with control group were used, and null hypothesis was rejected with a p value < 0,05. There was a noteworthy increase in the comparison between the initial vs. final percentage of the cellular expression of IL-2 (p < 0,001) and in the serum concentration of IL-2 (p = 0,001). Therefore, four weeks of nutritional recovery significantly restored the production of IL-2, independently of the nutrients involved in the process, although, the rate of restoration seems to depend on the severity of the children primary PEM.

Estudio comparativo entre dos fuentes alimentarias aportadoras de ácidos grasos poliinsaturados n-3 y su efecto sobre el timo y el perfil lipídico de ratas / Comparative study between two different sources of n-3 poliunsaturated fatty acids and it effect on thymus and lipid profile in rats

En este trabajo se estudia el efecto que diferentes dietas de recuperación enriquecidas en ácidos grasos poliinsaturados n-3 (AGPI n-3) producen sobre el timo y el perfil lipídico sérico. Ratas Wistar con desnutrición proteica severa al destete (grupo D) fueron divididas en tres grupos que recibieron durante 10 días dieta a base de caseína al 20% suplementada con EPA+DHA (grupo Cas), dieta al 20% de proteína preparada usando una leche en polvo parcialmente descremada enriquecida en ácidos linoleico y linolénico (grupo L) y dieta a base de caseína al 20% (grupo control C). Cas y L aportan cada una 24 mg/día de AGPI n-3 siendo la relación n-6/n-3 de 8.1/1 y 7.6/1, respectivamente. Se extrajo y pesó el timo, determinándose el recuento de timocitos; se extrajo sangre midiéndose en suero: colesterol, triglicéridos, HDL y LDL-colesterol y los ácidos: mirístico, palmítico, esteárico, oleico, linoleico, linolénico, araquidónico, EPA y DHA. La información se analizó aplicando test de Anova. El recuento de timocitos de Cas (44.48±8.20) y L (56.45±14.72) fue superior (p<0.01) al de los grupos D (1.80±0.70) y C (23.70±4.04). L presentó concentraciones séricas de colesterol, HDL y LDLcolesterol menores (p<0.01) y triglicéridos mayores (p<0.05) que Cas, siendo EPA (p<0.05) y DHA (p<0.01) superiores en Cas. A igual aporte de AGPI n-3, ambas dietas lograron revertir la atrofia tímica presentando un efecto hipolipemiante diferente condicionado a las fuentes de AGPI n-3 utilizadas.

In the present paper we analyzed the effect caused by different recovery diets enriched with n-3 polyunsaturated fatty acids (PUFA n-3) on thymus and serum lipid pattern. Severe depleted weanling Wistar rats (D) were divided in three groups that received during 10 days a 20% casein diet supplemented with EPA+DHA (group Cas), a 20% protein milk diet prepared using a commercial reduced-fat product enriched with linolenic and linoleic acids (group L) and a 20% casein diet as control group C. Cas and L gave each other 24 mg/day of PUFA n-3 being the ratio n-6/n-3 8.1/ 1 and 7.6/1, respectively. Thymus was removed and weighted and cell number were determined; blood was recollected and Total cholesterol, triacylglycerol, HDL and LDL-cholesterol fractions and myristic, palmitic, stearic, oleic, linoleic, linolenic, araquidonic, EPA and DHA fatty acid concentrations were measured in serum. Statistical analysis was performed using Anova test. Cell number were higher (p<0.01) in Cas (44.48±8.20) and in L (56.45±14.72) when compared to group D (1.80±0.70) and group C (23.70±4.04). L presented lower values of cholesterol, HDL and LDL-cholesterol (p<0.01) and higher values of triacylglycerol (p<0.05) when compared to Cas, being EPA (p<0.05) and DHA (p<0.01) higher in Cas. Being PUFA n-3 contribution the same in Cas and L, both diets were able to reverse the thymic athropy presenting a different hipolipemic behavior due to the different sources of PUFA n-3 used in the diets.