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1.
J Nutr ; 144(5): 660-6, 2014 May.
Artículo en Inglés | MEDLINE | ID: mdl-24647391

RESUMEN

Although 2 earlier studies reported that aromatic amino acid (AAA) supplementation of children with severe acute malnutrition (SAM) improved whole-body protein anabolism during the early postadmission (maintenance) phase of rehabilitation, it is not known whether this positive effect was maintained during the catch-up growth and recovery phases of treatment. This study aimed to determine whether supplementation with an AAA cocktail (330 mg · kg(-1) · d(-1)) vs. isonitrogenous Ala would improve measures of protein kinetics in 22 children, aged 4-31 mo, during the catch-up growth and recovery phases of treatment for SAM. Protein kinetics were assessed by measuring leucine, phenylalanine, and urea kinetics with the use of standard stable isotope tracer methods in the fed state. Supplementation started at the end of the maintenance period when the children were clinically/metabolically stable and continued up to full nutritional recovery. Three experiments were performed: at the end of maintenance (at ∼13 d postadmission), at mid-catch-up growth (at ∼23 d post- admission when the children had replenished 50% of their weight deficit), and at recovery (at ∼48 d postadmission when they had achieved at least 90% weight for length). Children in the AAA group had significantly faster protein synthesis compared with those in the Ala group at mid-catch-up growth (101 ± 10 vs. 72 ± 7 µmol phenylalanine · kg(-1) · h(-1); P < 0.05) and better protein balance at mid-catch-up growth (49 ± 5 vs. 30 ± 2 µmol phenylalanine · kg(-1) · h(-1); P < 0.05) and at recovery (37 ± 8 vs. 11 ± 3 µmol phenylalanine · kg(-1) · h(-1); P < 0.05). We conclude that dietary supplementation with AAA accelerates net protein synthesis in children during nutritional rehabilitation for SAM.


Asunto(s)
Aminoácidos Aromáticos/administración & dosificación , Suplementos Dietéticos , Kwashiorkor/dietoterapia , Desnutrición Proteico-Calórica/dietoterapia , Enfermedad Aguda , Adolescente , Peso Corporal , Niño , Femenino , Humanos , Isótopos , Kwashiorkor/rehabilitación , Masculino , Modelos Biológicos , Biosíntesis de Proteínas , Desnutrición Proteico-Calórica/rehabilitación , Índice de Severidad de la Enfermedad , Resultado del Tratamiento , Aumento de Peso
2.
Rehabil Nurs ; 38(3): 115-9, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-23658126

RESUMEN

PURPOSE: Sarcopenia and vitamin D deficiency increase risk of disability outcomes associated with a million hip and knee replacements annually. The purpose of the present study was to identify protein and vitamin D inadequacy in arthroplasty patients, and observe the effect of supplementation on metabolic markers on protein and vitamin D status. METHODS: One hundred and eighty obese arthroplasty patients admitted for inpatient rehabilitation, positive for protein and vitamin D insufficiency, received supplemental protein and vitamin D. RESULTS AND CONCLUSION: Following supplementation, normalization of protein and vitamin D status was achieved. Nutrient supplementation during physical rehabilitation provided an efficient and effective means to reverse nutrient deficiency in an obese, orthopedic population. CLINICAL RELEVANCE: Inpatient physical rehabilitation is an opportune environment for nurses to provide education and intervention of nutrient supplementation, which may lessen consequences of sarcopenic obesity and related frailty disorders.


Asunto(s)
Artroplastia de Reemplazo de Rodilla/rehabilitación , Obesidad/dietoterapia , Desnutrición Proteico-Calórica/dietoterapia , Enfermería en Rehabilitación/métodos , Sarcopenia/dietoterapia , Deficiencia de Vitamina D/dietoterapia , Anciano , Artroplastia de Reemplazo de Rodilla/enfermería , Femenino , Humanos , Masculino , Persona de Mediana Edad , Obesidad/enfermería , Obesidad/rehabilitación , Estudios Prospectivos , Desnutrición Proteico-Calórica/enfermería , Desnutrición Proteico-Calórica/rehabilitación , Sarcopenia/enfermería , Deficiencia de Vitamina D/enfermería , Deficiencia de Vitamina D/rehabilitación
3.
J Nutr ; 142(4): 788-94, 2012 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-22378333

RESUMEN

Infantile malnutrition is known to be associated with cognitive and behavioral impairment during childhood and adolescence. Data pertaining to longer-term effects on behavioral outcomes in adulthood are limited. In this study, we report associations between infantile malnutrition and attention problems in adults at midlife. Attention problems were assessed by the Conners Adult ADHD Rating Scales (CAARS) and the Conners Continuous Performance Test (CPT) in 145 Barbadian adults (aged 37-43 y) who had been followed longitudinally since childhood. Previously malnourished participants (n = 80) had experienced moderate to severe protein-energy malnutrition in the first year of life and were successfully rehabilitated thereafter. They were compared with healthy adults (n = 65) who were former classmates of the index cases and who had been matched for age, sex, and handedness in childhood. Multiple regression analyses showed persisting effects of childhood malnutrition on both the CAARS and the CPT, independent of effects of household standard of living assessed in childhood. The malnutrition effect on the CAARS ratings was independent of IQ, whereas this effect was attenuated for the CPT after adjustment for IQ. Teacher-reported attention problems in childhood predicted attention problems in adulthood, indicating continuity over the life span. Infantile malnutrition may have long-term effects on attentional processes nearly 40 y after the episode, even with excellent long-term nutritional rehabilitation and independent of socioeconomic conditions in childhood and adolescence. This finding has major public health implications for populations exposed to early childhood malnutrition.


Asunto(s)
Trastorno por Déficit de Atención con Hiperactividad/etiología , Trastornos de la Nutrición del Lactante/fisiopatología , Desnutrición Proteico-Calórica/fisiopatología , Trastorno por Déficit de Atención con Hiperactividad/complicaciones , Barbados , Trastornos del Conocimiento/complicaciones , Trastornos del Conocimiento/etiología , Estudios de Cohortes , Manual Diagnóstico y Estadístico de los Trastornos Mentales , Femenino , Humanos , Lactante , Trastornos de la Nutrición del Lactante/dietoterapia , Trastornos de la Nutrición del Lactante/psicología , Trastornos de la Nutrición del Lactante/rehabilitación , Estudios Longitudinales , Masculino , Desnutrición Proteico-Calórica/dietoterapia , Desnutrición Proteico-Calórica/psicología , Desnutrición Proteico-Calórica/rehabilitación , Escalas de Valoración Psiquiátrica , Análisis de Regresión , Autoinforme , Índice de Severidad de la Enfermedad
4.
East Mediterr Health J ; 15(3): 574-83, 2009.
Artículo en Inglés | MEDLINE | ID: mdl-19731773

RESUMEN

Malnutrition continues to be a major health burden in developing countries. Flow cytometric estimation of the apoptotic marker CD95 in peripheral neutrophils, lymphocytes and monocytes was done for 18 infants with non-oedematous protein energy malnutrition (PEM) and 12 oedematous ones, on hospital admission and after supervised nutritional rehabilitation, and compared with 12 matched controls. CD95 counts in the 3 types of white blood cells were significantly higher in PEM infants and showed improvement after nutritional rehabilitation yet not reaching the control values. Enhanced apoptosis in the leukocytes of peripheral blood of PEM patients may be a marker of increased infection and immune disturbances. This derangement reverses upon proper nutritional rehabilitation.


Asunto(s)
Biomarcadores/análisis , Trastornos de la Nutrición del Lactante/sangre , Leucocitos/química , Desnutrición Proteico-Calórica/sangre , Receptor fas/análisis , Apoptosis/inmunología , Estudios de Casos y Controles , Egipto , Femenino , Citometría de Flujo , Humanos , Lactante , Trastornos de la Nutrición del Lactante/diagnóstico , Trastornos de la Nutrición del Lactante/inmunología , Trastornos de la Nutrición del Lactante/rehabilitación , Recuento de Leucocitos , Leucocitos/inmunología , Linfocitos/química , Masculino , Monocitos/química , Evaluación Nutricional , Estado Nutricional , Valor Predictivo de las Pruebas , Pronóstico , Desnutrición Proteico-Calórica/diagnóstico , Desnutrición Proteico-Calórica/inmunología , Desnutrición Proteico-Calórica/rehabilitación , Estadísticas no Paramétricas , Receptor fas/inmunología
6.
East Mediterr Health J ; 13(3): 633-45, 2007.
Artículo en Inglés | MEDLINE | ID: mdl-17687837

RESUMEN

A standard sleep questionnaire was given to the parents of 26 infants with protein-energy malnutrition who underwent polysomnographic evaluation. These investigations were repeated approximately 2 months after enrolment in a nutritional rehabilitation programme based on World Health Organization guidelines. Anthropometric values and serum serotonin levels were also measured. After nutritional rehabilitation there was a significantly higher percentage of non-rapid eye movement (REM) sleep; 2nd REM time, and latency times for sleep and REM sleep increased. Percentages of REM sleep and serum serotonin levels decreased significantly. Protein-energy malnutrition seems to affect the sleep-wake cycle; disturbed serotonin levels may be among the factors responsible.


Asunto(s)
Trastornos de la Nutrición del Lactante/complicaciones , Trastornos de la Nutrición del Lactante/rehabilitación , Desnutrición Proteico-Calórica/complicaciones , Desnutrición Proteico-Calórica/rehabilitación , Parasomnias del Sueño REM/etiología , Trastornos del Sueño del Ritmo Circadiano/etiología , Antropometría , Estatura , Peso Corporal , Estudios de Casos y Controles , Niño , Edema/etiología , Egipto , Femenino , Hemoglobinas/metabolismo , Humanos , Lactante , Trastornos de la Nutrición del Lactante/diagnóstico , Evaluación Nutricional , Apoyo Nutricional , Polisomnografía , Guías de Práctica Clínica como Asunto , Desnutrición Proteico-Calórica/diagnóstico , Parasomnias del Sueño REM/sangre , Parasomnias del Sueño REM/diagnóstico , Parasomnias del Sueño REM/epidemiología , Serotonina/sangre , Albúmina Sérica/metabolismo , Trastornos del Sueño del Ritmo Circadiano/sangre , Trastornos del Sueño del Ritmo Circadiano/diagnóstico , Trastornos del Sueño del Ritmo Circadiano/epidemiología , Estadísticas no Paramétricas , Encuestas y Cuestionarios
7.
East Mediterr Health J ; 13(5): 1031-42, 2007.
Artículo en Inglés | MEDLINE | ID: mdl-18290395

RESUMEN

Thymus size was assessed ultrasonographically and correlated to the percentage of CD4 and CD8 T-lymphocytes in peripheral blood in 32 infants with protein-energy malnutrition (PEM) and compared with 14 healthy control infants. The study revealed thymus atrophy in patients with PEM, especially the oedematous type, accompanied by changes in the peripheral lymphocyte subsets. These changes were reversible after nutritional rehabilitation. However, they may affect the immune status of PEM patients and may require a longer duration of nutrition rehabilitation than required for recovery of anthropometric measures. We recommend proper assessment of the immune functions of PEM patients during nutritional rehabilitation until full recovery.


Asunto(s)
Desnutrición Proteico-Calórica/sangre , Desnutrición Proteico-Calórica/diagnóstico , Subgrupos de Linfocitos T/metabolismo , Timo/patología , Antropometría , Atrofia , Linfocitos T CD4-Positivos/metabolismo , Linfocitos T CD8-positivos/metabolismo , Estudios de Casos y Controles , Proteínas en la Dieta/administración & dosificación , Edema/etiología , Egipto , Ingestión de Energía , Femenino , Citometría de Flujo , Hospitales Pediátricos , Humanos , Lactante , Recuento de Linfocitos , Masculino , Evaluación Nutricional , Desnutrición Proteico-Calórica/complicaciones , Desnutrición Proteico-Calórica/inmunología , Desnutrición Proteico-Calórica/rehabilitación , Albúmina Sérica/metabolismo , Estadísticas no Paramétricas , Timo/diagnóstico por imagen , Resultado del Tratamiento , Ultrasonografía
8.
Eur J Clin Nutr ; 59(4): 467-73, 2005 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-15536474

RESUMEN

BACKGROUND: Pancreatic exocrine dysfunction has been frequently recorded in protein energy malnutrition (PEM) because the pancreas requires optimal nutrition for enzyme synthesis. This pancreatic enzyme insufficiency may play a role in the continuation of PEM. OBJECTIVE: This study was designed to assess the pancreatic head size and exocrine pancreatic functions, namely serum amylase and lipase, in PEM and its subtypes and correlate any defect present with the various clinical and laboratory data of the PEM patients with special emphasis on the effect of nutritional rehabilitation. PATIENTS AND METHODS: A total of 33 cases of PEM; 15 marasmus, 10 kwashiorkor (KWO) and eight marasmic kwashiorkor (MKWO) were recruited from Ain Shams University children's hospital, together with 12 matched controls. The mean age of patients was 11.87 +/- 7.8 months and that of the controls was 14.83 +/- 7.7 months. Detailed history taking and thorough clinical examination with special emphasis on anthropometric measurements were taken for each studied infant as well as laboratory investigations which included; complete blood count, liver and kidney functions and serum amylase and lipase. Ultrasonographic assessment of pancreatic head size was performed for the cases and controls. Nutritional rehabilitation program was carried out for 3-6 months followed by reassessment of the cases. RESULTS: The pancreatic head size values were significantly lower in all subtypes of PEM (1.52 +/- 0.6, 2.73 +/- 0.12 and 3.00 +/- 0.54 cm(3) in the marasmus, KWO and MKWO respectively) compared to the controls (5.13 +/- 2.33 cm(3)). The serum amylase and lipase were also significantly lower in all subgroups of PEM when compared to the controls with significant improvement following nutritional rehabilitation coupled by a significant increase in pancreatic head size too. No significant differences were recorded when we compared the subgroups together except for a significant higher rate of change in serum amylase in edematous patients compared to nonedematous ones. The length of nutritional rehabilitation period, age of the patient, weight and serum albumin were the most determinant factors for pancreatic head size as evident from the multiple regression analysis study. CONCLUSION: The potentially correctable exocrine pancreatic insufficiency in cases of PEM should be carefully thought of when planning the nutritional rehabilitation program for such patients as it could be responsible for the serious continued morbidity issues that they face. We thus recommend that estimation of pancreatic head size and exocrine function should be included in the evaluation of PEM patients and they could also be used as a prognostic parameter. SPONSORSHIP: The patients enrolled were among those admitted and managed freely in the children's Hospital Faculty of Medicine Ain Shams University, including the use of the ultrasound apparatus, while the kits have been purchased by authors who contributed in financing the study.


Asunto(s)
Insuficiencia Pancreática Exocrina/etiología , Estado Nutricional , Páncreas/anatomía & histología , Páncreas/fisiopatología , Desnutrición Proteico-Calórica/complicaciones , Desnutrición Proteico-Calórica/rehabilitación , Adolescente , Amilasas/sangre , Niño , Egipto , Insuficiencia Pancreática Exocrina/diagnóstico , Femenino , Hemoglobinas/análisis , Humanos , Lipasa/sangre , Masculino , Tamaño de los Órganos/fisiología , Páncreas/diagnóstico por imagen , Valor Predictivo de las Pruebas , Valores de Referencia , Factores de Tiempo , Ultrasonografía
10.
J Neurosci Nurs ; 47(2): 85-90, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25700193

RESUMEN

BACKGROUND: There is a paucity of studies, which have described malnutrition in patients with acquired brain injury (ABI) across etiology. This study describes weight change, malnutrition, and potential associations in patients with ABI at a subacute inpatient rehabilitation hospital. METHOD: This is a descriptive cohort study. Ninety-eight patients were admitted in a 3-month period, of whom n = 76 met inclusion criteria. The Malnutrition Universal Screening Tool was used for categorizing patients according to risk of malnutrition. RESULTS: Patients had experienced weight loss of 5.59% ± 5.89% (p < .001) at admission at the rehabilitation hospital, and patients with traumatic brain injury had experienced a greater weight loss than patients with stroke (p < .01). Thirty percent of patients were at high risk for malnutrition, and 52% of these patients received enteral or parenteral nutrition at admission at the rehabilitation hospital. No association was found between risk of malnutrition and severity of injury, complications, functional outcome, or length of stay. CONCLUSION: RESULTS underline the importance that nurses, especially in acute care, adhere to clinical guidelines to minimize weight loss. Special attention should be on patients with traumatic brain injury. Weight gain in the following course of rehabilitation may facilitate positive rehabilitation outcomes.


Asunto(s)
Lesiones Encefálicas/enfermería , Lesiones Encefálicas/rehabilitación , Desnutrición Proteico-Calórica/enfermería , Desnutrición Proteico-Calórica/rehabilitación , Rehabilitación de Accidente Cerebrovascular , Accidente Cerebrovascular/enfermería , Pérdida de Peso , Adolescente , Adulto , Anciano , Estudios de Cohortes , Nutrición Enteral/enfermería , Femenino , Adhesión a Directriz , Humanos , Masculino , Persona de Mediana Edad , Nutrición Parenteral/enfermería , Estudios Prospectivos , Centros de Rehabilitación , Factores de Riesgo , Resultado del Tratamiento , Adulto Joven
11.
Am J Clin Nutr ; 78(2): 302-7, 2003 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-12885713

RESUMEN

BACKGROUND: The World Health Organization recommends a liquid, milk-based diet (F100) during the rehabilitation phase of the treatment of severe malnutrition. A dry, solid, ready-to-use food (RTUF) that can be eaten without adding water has been proposed to eliminate the risk of bacterial contamination from added water. The efficacies of RTUF and F100 have not been compared. OBJECTIVE: The objective was to compare the efficacy of RTUF and F100 in promoting weight gain in malnourished children. DESIGN: In an open-labeled, randomized trial, 70 severely malnourished Senegalese children aged 6-36 mo were randomly allocated to receive 3 meals containing either F100 (n = 35) or RTUF (n = 35) in addition to the local diet. The data from 30 children in each group were analyzed. RESULTS: The mean (+/- SD) daily energy intake in the RTUF group was 808 +/- 280 (95% CI: 703.8, 912.9) kJ x kg body wt(-1) x d(-1), and that in the F100 group was 573 +/- 201 (95% CI: 497.9, 648.7) kJ. kg body wt(-1) x d(-1) (P < 0.001). The average weight gains in the RTUF and F100 groups were 15.6 (95% CI: 13.4, 17.8) and 10.1 (95% CI: 8.7, 11.4) g x kg body wt(-1) x d(-1), respectively (P < 0.001). The difference in weight gain was greater in the most wasted children (P < 0.05). The average duration of rehabilitation was 17.3 (95% CI: 15.6, 19.0) d in the F100 group and was 13.4 (95% CI: 12.1, 14.7) d in the RTUF group (P < 0.001). CONCLUSIONS: This study indicated that RTUF can be used efficiently for the rehabilitation of severely malnourished children.


Asunto(s)
Dieta , Alimentos Formulados , Crecimiento , Trastornos de la Nutrición del Lactante/dietoterapia , Desnutrición Proteico-Calórica/dietoterapia , Fenómenos Fisiológicos Nutricionales Infantiles , Preescolar , Humanos , Lactante , Trastornos de la Nutrición del Lactante/rehabilitación , Fenómenos Fisiológicos Nutricionales del Lactante , Desnutrición Proteico-Calórica/rehabilitación , Senegal , Resultado del Tratamiento
12.
Am J Clin Nutr ; 68(3): 742-8, 1998 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-9734756

RESUMEN

A randomized, double-blind trial was undertaken to measure the effects of zinc supplementation on catch-up growth in severe protein-energy malnutrition, with particular reference to linear growth. One hundred forty-one children between the ages of 6 mo and 3 y were enrolled after admission to a nutritional rehabilitation unit in Dhaka, Bangladesh, and randomly assigned to receive elemental zinc by mouth, 1.5 mg/kg for 15 d, 6.0 mg/kg for 15 d, or 6.0 mg/kg for 30 d, and thereafter they were followed for a total of 90 d. Anthropometric outcome measures included change in knee-heel length, midupper arm circumference, subscapular and triceps skinfold thicknesses, and change in height-for-age, weight-for-age, and weight-for-height z scores. Higher zinc doses were not associated with significant change in any anthropometric measurement, but mortality was significantly greater in children who received high-dose zinc (6.0 mg/kg) initially as opposed to those who received low-dose zinc supplementation (1.5 mg/kg) (Yates-corrected chi-square P value of 0.033 and a risk ratio of 4.53; 95% CI: 1.09 < risk ratio < 18.8). We conclude that there is no benefit to using high-dose zinc supplementation regimens and that they could contribute to increased mortality in severely malnourished children.


Asunto(s)
Desnutrición Proteico-Calórica/tratamiento farmacológico , Zinc/efectos adversos , Antropometría , Bangladesh , Preescolar , Relación Dosis-Respuesta a Droga , Método Doble Ciego , Crecimiento/efectos de los fármacos , Humanos , Lactante , Pronóstico , Desnutrición Proteico-Calórica/mortalidad , Desnutrición Proteico-Calórica/rehabilitación , Centros de Rehabilitación , Zinc/administración & dosificación
13.
Am J Clin Nutr ; 51(5): 749-58, 1990 May.
Artículo en Inglés | MEDLINE | ID: mdl-2110413

RESUMEN

To determine whether the level of protein-calorie undernutrition at presentation correlated with the subsequent risk of developing in-hospital complications independently of nonnutrition factors influencing outcomes, a prospective study was conducted of 110 consecutive admissions to a Geriatric Rehabilitation Unit (GRU) of a Veteran's Administration hospital. In total, 54 variables were evaluated as possible predictors of outcomes. The risk of developing at least one complication while on the GRU was studied by using multivariate techniques (discriminant function analysis) and was found to correlate with, in order of significance, functional status as admission, serum albumin concentration at admission, amount of weight lost in the year before admission, and the presence or absence of a renal or pulmonary disease. Nutrition variables also independently correlated with the risk of developing an infectious complication or a major life-threatening complication and dying within the hospital. These data indicate the importance of nutrition status in geriatric rehabilitation patients.


Asunto(s)
Geriatría , Hospitalización , Estado Nutricional , Desnutrición Proteico-Calórica/rehabilitación , Anciano , Peso Corporal , Análisis Discriminante , Humanos , Morbilidad , Mortalidad , Pronóstico , Estudios Prospectivos , Desnutrición Proteico-Calórica/complicaciones
14.
Brain Res ; 465(1-2): 97-113, 1987 Dec 15.
Artículo en Inglés | MEDLINE | ID: mdl-3125949

RESUMEN

Wistar rats underwent caloric undernutrition so as to produce undernourished pups (F1, both male and female), which were put on a reduced diet throughout life, causing deficits in body weight of 40-70%, and in brain weight of 14-20% by adulthood. These chronic undernourished rats were mated and their progeny (F2), which had suffered gestational and postnatal undernutrition, were undernourished, like their parents, throughout life until the moment of use in this study. At this degree of chronic undernutrition, rats do not appear to be sick or morbid, but only small-for-age, they are active and can reproduce. The computer-generated power spectra of the EEG of two neocortical areas (visual and motor) and of 3 regions of the limbic system (cingulate, hippocampus and olfactory bulb) of the chronically undernourished pups were obtained at different ages from birth to adulthood, and compared with the normal ontogenetic patterns of corresponding areas obtained from age-matched controls. In another group of rats, the undernutrition was imposed on normal pups from the day of weaning (21st day), i.e., after the major part of the brain growth spurt is over. Finally, the effect of restituting normal rehabilitatory nutrition from the day of weaning on the chronic group was also studied. The results show that all brain regions studied were affected by the chronic caloric undernutrition. The deviations from the normal consist of: (1) an initial lag or delay in the development of the EEG amplitude and activity by several days, (2) a later development of an abnormally high amplitude or power in the EEG power spectra by about the weaning age, and (3) an imbalance in the occurrence of the characteristics of the EEG of the respective areas of the brain (the low and high frequency spindles of slow sleep, the slow and fast theta activities of paradoxical sleep of the hippocampus, the delta rhythm, etc.). While the chronic undernutrition was continuing there was also a certain degree of spontaneous reduction in the magnitude of abnormality after about 80 days of age, instead of worsening with age, perhaps due to an intrinsic adaptational readjustment to the stress of the nutritional deprivation. The results reveal a variation in the susceptibility of development to these abnormalities. Typical examples of the range of variation of the effects are presented in the results showing that there can be nearly normal EEG patterns in some undernourished subjects (about 14-22%), and also that there can be abnormal EEG power spectra in a proportion of normals (up to about 20%).(ABSTRACT TRUNCATED AT 400 WORDS)


Asunto(s)
Corteza Cerebral/crecimiento & desarrollo , Electroencefalografía , Sistema Límbico/crecimiento & desarrollo , Desnutrición Proteico-Calórica/complicaciones , Animales , Corteza Cerebral/fisiopatología , Femenino , Sistema Límbico/fisiopatología , Masculino , Desnutrición Proteico-Calórica/rehabilitación , Ratas , Ratas Endogámicas
15.
Brain Res ; 662(1-2): 117-26, 1994 Oct 31.
Artículo en Inglés | MEDLINE | ID: mdl-7859064

RESUMEN

The effects of prenatal protein malnutrition and postnatal nutritional rehabilitation on CA3 hippocampal pyramidal cells were investigated in rats of 15, 30, 90 and 220 days of age. Female rats were fed either 6% or 25% casein diet 5 weeks before conception. Following delivery, litters born the same day to 6% and 25% casein diet rats were randomly cross-fostered to 25% casein diet dams and maintained on that diet until sacrificed. In 288 rapid-Golgi impregnated cells, we measured somal size, length of the longest apical dendrite, number of apical and basal dendrites intersecting 10 concentric rings 38 microns apart, synaptic spine density in three 50 microns segments of the largest apical dendrite and the thorny excrescence area. Prenatal protein malnutrition produced differential morphological changes on CA3 pyramidal cells. We observed significant decreases of somal size (at 90 and 220 days of age), of length of apical dendrites (at 15 days old), of apical (in 15 day animals) and basal (in 15, 90 and 220 day animals) dendritic branching and of spine density (in 30, 90 and 220 day animals). We also found significant increases of apical dendritic branching in 90 and 220 day old rats. These results indicate that prenatal protein malnutrition affects normal development and produces long-term effects on CA3 pyramidal cells.


Asunto(s)
Envejecimiento/patología , Hipocampo/patología , Enfermedades Placentarias/patología , Desnutrición Proteico-Calórica/patología , Células Piramidales/fisiología , Fenómenos Fisiológicos Nutricionales de los Animales , Animales , Peso Corporal/fisiología , Dendritas/ultraestructura , Dieta , Femenino , Masculino , Enfermedades Placentarias/rehabilitación , Embarazo , Desnutrición Proteico-Calórica/rehabilitación , Células Piramidales/ultraestructura , Ratas , Ratas Sprague-Dawley
16.
Brain Res ; 169(1): 121-38, 1979 Jun 15.
Artículo en Inglés | MEDLINE | ID: mdl-110391

RESUMEN

Sprague-Dawley rats were malnourished by giving their mothers an 8% casein diet starting at day 10 of gestation, while controls were fed a 24% casein diet. Starting at postnatal day 20 (P20), rehabilitation of the malnourished animals was attempted by: (1) feeding both mother and young a 24% casein diet, (2) leaving the pups with their mothers until they were 40 days old, and (3) reducing the litter size from 8 to 4 pups. Observations were made on aldehyde-perfused tissue from animals 20, 40 and 70 days old. The somatosensory cortex from one hemisphere was embedded in Araldite, and that from the other side was processed fro Golgi staining. At 20 days of age the body weight of the malnourished animals was 21% that of the controls, but at 70 days it was no longer different. The anterior-posterior length, the width, and the height of the cerebral hemispheres were also significantly reduced at P20, but the differences had disappeared by P70. The thickness of area 3 of the cerebral cortex was measured in 1 micron sections. It was significantly reduced in the malnourished animals at P20, but at P40, following rehabilitation, the difference was no longer statistically significant. In tangential 1 micron sections the fraction of the volume of tissue occupied by neuropil was measured in layers II through IV. At P20 it was significantly reduced only in the upper half of layers II/III of the malnourished animals; at P40 this difference was no longer present. The mean volume of upper layer II/III cell bodies was estimated and found to be significantly reduced in the experimental animals at P20 but not at P40. In the Golgi preparations, pyramidal cells in upper layer II/III were studied. Their estimated volume, as well as the thickness of their basal dendrites, was significantly reduced in the 20 day malnourished animals, but not in the rehabilitated animals. These results show that animals severely malnourished until 20 days of age can reach normal body weight and attain cerebral hemispheres of normal size when proper nutrition is provided. The effects of malnutrition on the cerebral cortex of these animals are most apparent in upper layer II/III which, during the time of nutritional restriction, is the least developed of the cortical layers. However, when proper nutrition is provided, the cerebral cortex may attain normal morphology.


Asunto(s)
Peso Corporal , Corteza Cerebral/crecimiento & desarrollo , Desnutrición Proteico-Calórica/rehabilitación , Animales , Animales Recién Nacidos , Recuento de Células , Diferenciación Celular , Corteza Cerebral/citología , Dendritas/ultraestructura , Femenino , Privación de Alimentos , Neuronas/citología , Tamaño de los Órganos , Embarazo , Ratas , Corteza Somatosensorial/crecimiento & desarrollo
17.
Brain Res Dev Brain Res ; 116(1): 51-8, 1999 Aug 05.
Artículo en Inglés | MEDLINE | ID: mdl-10446346

RESUMEN

There is evidence that severe malnutrition started during gestation and continued through lactation affects adversely the morphologic development of the neocortex leading to increased neuronal cell packing density and decreased dendritic branching. Nevertheless, the effect of purely mild protein prenatal malnutrition on neocortical development remains rather unexplored. This study evaluates the effects of mild protein prenatal malnutrition (8% casein diet, calorically compensated by carbohydrates) and subsequent postnatal nutritional rehabilitation (25% casein diet) on: (i) the potassium-induced release of [(3)H]-noradrenaline (NA) in occipital cortex slices obtained from 1- and 22-day-old pups; and (ii) the packing density of neurons in lateral, dorso-lateral and dorsal regions of the occipital cortex of 22-day-old pups by using the optical dissector method. The experiments were performed in rats normally fed during gestation and lactation (G(+)L(+)), malnourished during gestation but rehabilitated during lactation (G(-)L(+)) and malnourished during gestation and lactation (G(-)L(-)). At day 1 of age, no significant differences in body and brain weights were observed between prenatally well-nourished and malnourished pups. Nevertheless, at this early age, pups born from mothers submitted to the 8% casein diet had significantly higher cortical net percent NA release than pups born from mothers receiving the 25% casein diet. At weaning (22 days of age) G(-)L(+) rats had, compared to the G(+)L(+) group, similar body weight, brain weight and [(3)H]-NA release values, but significantly higher neuron density scores in the lateral region of the occipital cortex. In contrast, at 22 days of age, G(-)L(-) rats exhibited, compared to G(+)L(+) animals, significant deficits in body and brain weights as well as significant increases in cortical net percent NA release together with enhanced packing density of neurons in the lateral, dorso-lateral and dorsal regions of the occipital cortex. Moreover, in G(-)L(-) animals was not found the laterodorsal histogenetic gradient of neuronal cell packing density observed in G(+)L(+)rats. Results suggest that mild prenatal malnutrition per se is able to induce deleterious effects on cortical neuronal density, in spite of nutritional rehabilitation during lactation, through a mechanism involving central NA hyperactivity during gestation. Prosecution of malnutrition after birth magnifies both neurochemical and morphometric disorders.


Asunto(s)
Fenómenos Fisiológicos Nutricionales de los Animales , Neuronas/metabolismo , Norepinefrina/metabolismo , Lóbulo Occipital/metabolismo , Desnutrición Proteico-Calórica/rehabilitación , Análisis de Varianza , Animales , Recuento de Células , Femenino , Masculino , Neuronas/patología , Lóbulo Occipital/crecimiento & desarrollo , Lóbulo Occipital/patología , Desnutrición Proteico-Calórica/metabolismo , Desnutrición Proteico-Calórica/patología , Ratas , Ratas Wistar
18.
J Neurol Sci ; 36(1): 25-39, 1978 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-148495

RESUMEN

The postnatal differentiation and growth patterns of the different histochemical muscle fibre types were studied at frequent age intervals in the extensor digitorum longus (EDL) muscle of normal rats and animals subjected to pre- and postnatal protein-calorie undernutrition. Three stepwise changes were seen in the fibre type composition of the EDL muscle during maturation. In newborn normal rats 2 histochemically and morphometrically distinct fibre populations occurred: small foetal type (type F) fibres or myotubes (about 90%), with the staining characteristics of the so-called type 2C fibres, and larger type 1 fibres (10%). At 5 days of age the percentage of type F fibres had dropped to 50 simultaneously with the emergence of a new population (40%) of type 2B fibres, intermediate in cross-sectional area between the remaining type F fibres and type 1 fibres. Between 15 and 20 days the small type F fibres practically disappeared with the emergence of a corresponding percentage (40%) of type 2A fibres, smaller than both type 1 and type 2B fibres; Between 20 and 60 days the percentage of type 1 rose from 10 to almost 30, type 2B fibres correspondingly diminishing in number but growing at a faster rate than either type 1 or type 2A fibres. In the undernourished rats the histochemical differentiation was retarded at birth, all fibres or myotubes being of the foetal type; However, large type 1 and type 2B fibres were seen at the age of 5 days and the histochemical maturation proceeded almost normally at later stages. On the other hand, at all ages there was a proportional reduction in the cross-sectional area of all fibre types, amounting to about 50% at 180 dyas, and not fully restituted by nutritional rehabilitation. These observations suggest that type F (type 2C) fibres are the undifferentiated precursors of all mature muscle fibres, their stepwise histochemical transformation raising the question of maturational differences in the different types of motoneurones.


Asunto(s)
Desarrollo de Músculos , Desnutrición Proteico-Calórica/fisiopatología , Adenosina Trifosfatasas/metabolismo , Factores de Edad , Animales , Animales Recién Nacidos , Histocitoquímica , Masculino , Músculos/embriología , Músculos/enzimología , Unión Neuromuscular/embriología , Desnutrición Proteico-Calórica/embriología , Desnutrición Proteico-Calórica/rehabilitación , Ratas
19.
Drug Alcohol Depend ; 38(1): 11-8, 1995 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-7648992

RESUMEN

OBJECTIVE: To discern if factors such as organic pathology, sex, duration and/or intensity of drug addiction, alcohol abuse, hepatitis B infection, anorexia with poor food and drink consumption, or disturbance of social and familial networks, are related to an impaired nutritional status in hospitalized drug addicts. DESIGN: Cross-sectional prospective study. SETTING: Detoxication unit and internal medicine unit of a university hospital. PATIENTS: 140 drug addicts without acute organic pathology and 18 with acute organic pathology related to drug addiction. The immunological study was compared with a control group composed of 50 healthy and well-nourished individuals (26 women and 24 men), age-matched with our patients. RESULTS: Drug addicts without organic pathology were under-nourished: 92.4% weighed under the mean weight for the population and 55.7% had had a weight loss above 5%. The distribution of mid-upper arm circumference (MUAC), triceps skinfold (TSF) measurement and mid-arm muscle area (MAMA) compared with the percentiles for the population showed a shift towards lower values. We found a high percentage of patients with a high lymphocyte count (55%). Despite the high lymphocyte count, delayed hypersensitivity was depressed in our patients. Of our patients, 66.4% exhibited anorexia at admission. The mean calorific intake was 978 +/- 89 kcal/day in females and 1265 +/- 64 kcal/day in males. However, in most cases, malnutrition (usually marasmus-like malnutrition) was not very severe; only 30% of the drug addicts weighed less than 80% of the mean weight for the population, or admitted to a weight loss above 10%, and by subjective nutritional assessment, only 18% were deeply malnourished. Otherwise, the nutritional status was very poor in drug addicts with acute organic pathology. We also found a worse nutritional status in our patients related to female sex, intensity of drug addiction, anorexia with poor food and drink consumption, and disturbance of the social and familial networks. CONCLUSIONS: Many drug addicts suffer from calorie and protein malnutrition. This mainutrition is related to female sex, intensity of drug addiction, anorexia and poor food and drink consumption, and disturbance of the social and familial links. Acute organic pathology leads to a significant worsening of the nutritional status of drug addicts.


Asunto(s)
Alcoholismo/fisiopatología , Evaluación Nutricional , Desnutrición Proteico-Calórica/fisiopatología , Abuso de Sustancias por Vía Intravenosa/fisiopatología , Trastornos Relacionados con Sustancias/fisiopatología , Adulto , Alcoholismo/psicología , Alcoholismo/rehabilitación , Anorexia/fisiopatología , Anorexia/psicología , Anorexia/rehabilitación , Cocaína , Ingestión de Energía/fisiología , Metabolismo Energético/fisiología , Femenino , Seropositividad para VIH/fisiopatología , Seropositividad para VIH/psicología , Seropositividad para VIH/rehabilitación , Hepatitis B/fisiopatología , Hepatitis B/psicología , Hepatitis B/rehabilitación , Dependencia de Heroína/fisiopatología , Dependencia de Heroína/psicología , Dependencia de Heroína/rehabilitación , Humanos , Recuento de Linfocitos , Masculino , Infecciones Oportunistas/fisiopatología , Infecciones Oportunistas/psicología , Infecciones Oportunistas/rehabilitación , Estudios Prospectivos , Desnutrición Proteico-Calórica/psicología , Desnutrición Proteico-Calórica/rehabilitación , Abuso de Sustancias por Vía Intravenosa/psicología , Abuso de Sustancias por Vía Intravenosa/rehabilitación , Trastornos Relacionados con Sustancias/psicología , Trastornos Relacionados con Sustancias/rehabilitación , Pérdida de Peso/fisiología
20.
Eur J Clin Nutr ; 48(12): 873-82, 1994 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-7889896

RESUMEN

OBJECTIVE: To contrast early discharge versus attempted full nutritional rehabilitation in hospital of children suffering from severe protein-energy malnutrition (PEM). DESIGN: Field experiment, two-way analysis of variance with one between group (short- versus long-stay) and one repeated measures factor (admission, then 12, 18, 24, 30 and 36 months post-admission). Covariates introduced. SETTING: Primary health care, Kingston, Jamaica. SUBJECTS: n = 81; mean age 11 months; 79 contribute longitudinal data; 44 every measurement. INTERVENTIONS: When concurrent illnesses had been treated and normal feeding re-established (weight gain 5 g/kg.day-1), subjects were randomly allocated to short-stay (SS) or long-stay (LS) group. LS retained in hospital for full nutritional rehabilitation mean 40 days). SS discharged immediately (mean 18 days) for standard Health Service care at home for 6 months plus high-energy supplement (3.31 MJ with 20.6 g protein daily) for first 3 months. After discharge LS received 6 months home care, but without supplementation. RESULTS: Significant advantages for LS group on NCHS weight & length for age at discharge, and at 12, 18, 24 and for length also 30 months (P < 0.05 to P < 0.001). Weight advantage peaked at 12 and 18 months, length later at 18 and 24 months. CONCLUSIONS: Contrary to earlier reports, full nutritional rehabilitation can be achieved in hospital for children suffering from PEM. Although in the long-term both groups move towards expected levels in their home community, a significant advantage maintained for approximately 2 years is developmentally advantageous during the critical time after weaning.


Asunto(s)
Trastornos de la Nutrición del Niño/rehabilitación , Tiempo de Internación , Desnutrición Proteico-Calórica/rehabilitación , Análisis de Varianza , Estatura , Peso Corporal , Trastornos de la Nutrición del Niño/diagnóstico , Estudios Transversales , Estudios de Seguimiento , Humanos , Lactante , Encuestas Nutricionales , Desnutrición Proteico-Calórica/diagnóstico
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