RESUMEN

BACKGROUND/OBJECTIVES: Sickle cell anemia (SCA) is marked by hypoxia, inflammation, and secondary iron overload (IO), which potentially modulate hepcidin, the pivotal hormone governing iron homeostasis. The aim was to evaluate the iron incorporation in red blood cells (RBC) in SCA pediatric patients, considering the presence or absence of IO. SUBJECTS/METHODS: SCA children (n = 12; SCAtotal) ingested an oral stable iron isotope (57Fe) and iron incorporation in RBC was measured after 14 days. Patients with ≥1000 ng/mL serum ferritin were considered to present IO (SCAio+; n = 4) while the others were classified as being without IO (SCAio-; n = 8). Liver iron concentration (LIC) was determined by Magnetic Resonance Imaging (MRI) T2* method. RESULTS: The SCAio+ group had lower iron incorporation (mean ± SD: 0.166 ± 0.04 mg; 3.33 ± 0.757%) than SCAio- patients (0.746 ± 0.303 mg; 14.9 ± 6.05%) (p = 0.024). Hepcidin was not different between groups. Iron incorporation was inversely associated with serum ferritin level (SCAtotal group: r = -0.775, p = 0.041; SCAio- group: r = -0.982; p = 0.018) and sickle hemoglobin (HbS) presented positive correlation with iron incorporation (r = 0.991; p = 0.009) in SCAio- group. LIC was positively associated with ferritin (SCAtotal: r = 0.921; p = 0.026) and C reactive protein (SCAio+: r = 0.999; p = 0.020). CONCLUSION: SCAio+ group had lower iron incorporation in RBC than SCAio- group, suggesting that they may not need to reduce their intake of iron-rich food, as usually recommended. Conversely, a high percentage of HbS may indirectly exacerbate hypoxia and seems to increase iron incorporation in RBC. TRIAL REGISTRATION: This trial was registered at www.ensaiosclinicos.gov.br . Identifier RBR-4b7v8pt.

Asunto(s)

Anemia de Células Falciformes , Eritrocitos , Ferritinas , Hepcidinas , Isótopos de Hierro , Sobrecarga de Hierro , Hierro , Humanos , Anemia de Células Falciformes/sangre , Proyectos Piloto , Eritrocitos/metabolismo , Niño , Masculino , Femenino , Ferritinas/sangre , Hierro/sangre , Hierro/metabolismo , Sobrecarga de Hierro/sangre , Adolescente , Hepcidinas/sangre , Hígado/metabolismo

RESUMEN

Iron is an essential element for human life and its nutritional status in the human body is directly linked to human health. More than 1015 atoms of iron per second are necessary for the maintenance of haemoglobin formation. To predict iron bioavailability three approaches are normally employed: (a) faecal recovery; (b) plasma appearance; and (c) erythrocyte incorporation (the most used). Isotope Pattern Deconvolution (IPD) is a mathematical tool that allows the isolation of distinct isotope signatures from mixtures of natural abundance and enriched tracers. In this work we propose a novel strategy to assess erythrocyte iron incorporation, based on the use of an iron stable isotope (57Fe) and the IPD concept. This strategy allows direct calculation of the exogenous concentration of 57Fe incorporated into RBCs after supplementation. In this way, to determine the mass of iron incorporated into erythrocytes, the unique prediction that must be made is the blood volume, estimate to reproduce the natural dilution of the tracer (57Fe) in the blood. This novel bioanalytical approach was applied for the measurements of iron incorporation and further iron absorption studies in humans, using a group of twelve healthy participants, that should be further evaluated for the assessment of other chemical elements that could be of health concerns and directly impact society.

Asunto(s)

Eritrocitos , Hierro , Humanos , Hierro/metabolismo , Isótopos de Hierro/metabolismo , Eritrocitos/metabolismo , Plasma , Disponibilidad Biológica

RESUMEN

BACKGROUND: Herbal medicine is a low-cost treatment and has been increasingly applied in obesity treatment. Gut microbiota (GM) is strongly associated with obesity pathogenesis. METHODS: We conducted a systematic review guided by the question: "Does the use of herbal medicine change the GM composition in obese individuals?" Randomized clinical trials with obese individuals assessing the effects of herbal medicine intervention in GM were retrieved from the Medline, Embase, Scopus, Web of Science, and Cochrane Library databases, including the Cochrane Controlled Trials Register. Two reviewers independently extracted data using standardized piloted data extraction forms and assessed the study-level risk of bias using an Excel template of the Cochrane "Risk of bias" tool 2-RoB 2. RESULTS: We identified 1094 articles in the databases. After removing duplicates and reading the title and abstract, 14 publications were fully evaluated, of which seven publications from six studies were considered eligible. The herbs analyzed were Moringa oleifera, Punica granatum, Scutellaria baicalensis, Schisandra chinensis, W-LHIT and WCBE. The analysis showed that Schisandra chinensis and Scutellaria baicalensis had significant effects on weight loss herbal intervention therapy composed by five Chinese herbal medicines Ganoderma lucidum, Coptis chinensis, Astragalus membranaceus, Nelumbo nucifera gaertn, and Fructus aurantii (W-LHIT) and white common bean extract (WCBE) on GM, but no significant changes in anthropometry and laboratory biomarkers. CONCLUSIONS: Herbal medicine modulates GM and is associated with increased genera in obese individuals.

Asunto(s)

Microbioma Gastrointestinal , Plantas Medicinales , Humanos , Sobrepeso/tratamiento farmacológico , Obesidad/tratamiento farmacológico , Extractos Vegetales/uso terapéutico

RESUMEN

Sickle cell anemia (SCA) is a genetic and hemolytic disease globally characterized by social vulnerability. Food consumption has been insufficiently analyzed in SCA. Secondary iron overload is often observed. This leads to unreliable recommendations for dietary iron restriction. We assessed food consumption and iron intake among adults with SCA. Considering the guidelines for healthy eating, foods were grouped according to the NOVA classification. This transversal study included 74.4% of eligible patients who were registered in the reference center for SCA treatment in Rio de Janeiro, Brazil, in 2019. Data on food consumption were collected through 24 h recall. The monthly household income of 82.3% of patients was less than $770. The consumption of fresh or minimally processed foods was directly associated with monthly household income (p < 0.0001; η2 = 0.87). Ultra-processed foods provided more than one-third of the total energy intake (35.2%). The prevalence of inadequate iron intake was about 40% among women, while that of iron intake above the tolerable upper limit was 0.8%. People from lower socioeconomic classes had the lowest iron intake. Strategies to encourage the consumption of fresh or minimally processed foods are needed considering the requirement of an antioxidant diet in SCA. These findings highlight the need for health equity to ensure food security and healthy eating in SCA.

Asunto(s)

Anemia de Células Falciformes , Ingestión de Energía , Adulto , Humanos , Femenino , Brasil/epidemiología , Dieta/efectos adversos , Estado Nutricional , Manipulación de Alimentos , Anemia de Células Falciformes/epidemiología , Comida Rápida

RESUMEN

Introdução: Náuseas e vômitos induzidos por quimioterapia (NVIQ) são importantes efeitos colaterais dos tratamentos antineoplásicos. Algumas plantas medicinais vêm sendo estudadas no manejo desses efeitos, como o gengibre (Zingiber officinale). Objetivo: Realizar uma revisão acerca do uso via oral do gengibre no manejo de NVIQ em pacientes com câncer. Método: Revisão integrativa da literatura realizada na base de dados MEDLINE, em setembro de 2022, adotando a combinação das palavras-chave "Zingiber officinale" e "Cancer". Foram também aplicados filtros na seleção para incluir ensaios clínicos aleatórios publicados entre 2012 e 2022. Resultados: Ao todo, foram analisados nove estudos. O gengibre apresenta potencial de reduzir NVIQ em pacientes com câncer, refletindo positivamente na qualidade de vida e na melhora do apetite e da fadiga. Os estudos não observaram efeitos adversos da administração do gengibre. Conclusão: O uso por via oral do gengibre demonstra ser uma estratégia segura para o manejo de NVIQ em pacientes com câncer, na dose de 1 g/dia do gengibre em pó, podendo ser utilizado como terapia complementar juntamente com regimes antieméticos padrões

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Introduction: Chemotherapy-induced nausea and vomiting (CINV) are important side effects of antineoplastic treatments. Some medicinal plants have been studied in the management of these effects, such as ginger (Zingiber officinale). Objective: Review the oral use of ginger in the management of CINV in cancer patients. Method: Integrative literature review carried out at the MEDLINE database, in September 2022, utilizing the combination of the keywords "Zingiber officinale" and "Cancer", filters were also applied to include randomized clinical trials published between 2012 and 2022. Results: In all, nine studies were analyzed. Ginger has the potential to reduce CINV in cancer patients, reflecting positively on quality-of-life, improved appetite and fatigue. The studies have not found any adverse effect after administering ginger. Conclusion: The oral use of ginger proves to be an effective strategy for the management of CINV in cancer patients, in the dosage regimen of 1 g/day of powdered ginger, and can be used as a complementary therapy along with standard antiemetic regimens

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Introducción: Las náuseas y los vómitos inducidos por la quimioterapia (NVIQ) son efectos secundarios importantes de los tratamientos antineoplásicos. Se han estudiado algunas plantas medicinales en el manejo de estos efectos, como el jengibre (Zingiber officinale). Objetivo: Realizar una revisión integradora de la literatura sobre el uso oral del jengibre en el manejo de las NVIQ en pacientes oncológicos. Método: Revisión integradora de la literatura realizada en la base de datos MEDLINE, en septiembre de 2022, adoptando la combinación de las palabras clave "Zingiber officinale" y "Cancer". También se aplicaron filtros en la selección para incluir ensayos clínicos aleatorizados publicados entre 2012 y 2022. Resultados: En total, se analizaron nueve estudios. El jengibre tiene el potencial de reducir las NVIQ en pacientes con cáncer, lo que se refleja positivamente en la mejora de la calidad de vida, apetito y fatiga. Los estudios no han observado ningún efecto adverso por la administración del jengibre. Conclusión: El uso del jengibre por vía oral demuestra ser una estrategia segura para el manejo de NVIQ en pacientes con cáncer, usando una dosis de 1 g/día de jengibre en polvo, y puede usarse como terapia complementaria junto con los regímenes antieméticos estándar

Asunto(s)

Humanos , Masculino , Femenino , Plantas Medicinales , Zingiber officinale/efectos adversos , Fitoterapia , Neoplasias/tratamiento farmacológico

RESUMEN

Population surveillance in COVID-19 Pandemic is crucial to follow up the pace of disease and its related immunological status. Here we present a cross-sectional study done in Maricá, a seaside town close to the city of Rio de Janeiro, Brazil. Three rounds of study sampling, enrolling a total of 1134 subjects, were performed during May to August 2021. Here we show that the number of individuals carrying detectable IgG antibodies and the neutralizing antibody (NAb) levels were greater in vaccinated groups compared to unvaccinated ones, highlighting the importance of vaccination to attain noticeable levels of populational immunity against SARS-CoV-2. Moreover, we found a decreased incidence of COVID-19 throughout the study, clearly correlated with the level of vaccinated individuals as well as the proportion of individuals with detectable levels of IgG anti-SARS-CoV-2 and NAb. The observed drop occurred even during the introduction of the Delta variant in Maricá, what suggests that the vaccination slowed down the widespread transmission of this variant. Overall, our data clearly support the use of vaccines to drop the incidence associated to SARS-CoV-2.

Asunto(s)

COVID-19 , Cobertura de Vacunación , Anticuerpos Neutralizantes , Anticuerpos Antivirales , Brasil/epidemiología , COVID-19/epidemiología , COVID-19/prevención & control , Estudios Transversales , Humanos , Inmunoglobulina G , Incidencia , Pandemias , SARS-CoV-2

RESUMEN

OBJECTIVE: This study evaluates the association of serum retinol, hepcidin levels, and anemia in children. METHODS: This cross-sectional study included 312 children, ages 6 to 59 mo, from Rio de Janeiro, Brazil. The association between hepcidin and retinol levels, hematologic parameters, and body mass index (BMI) was analyzed using a generalized linear model with and without adjustment for C-reactive protein (CRP) level. Logistic regression analysis was used to test anemia as an outcome and serum retinol level as a predictive variable using the odds ratio (OR) function. RESULTS: Anemia was present in 14.6% of the children, 5.8% presented iron deficiency anemia, and 9.6% had vitamin A deficiency. The increase in serum retinol levels reduced the chances of anemia (OR = 0.13; confidence interval = 0.29-0.59). When CRP level was not adjusted for in the multiple regression analyses, retinol, ferritin levels, and BMI/age were predictors of serum hepcidin levels (ß = -3.36, 0.14, 1.02, respectively; P = 0.032). Accordingly, serum retinol levels were inversely associated with CRP levels (ß = -0.025 and P < 0.001). CONCLUSIONS: The association between serum retinol and hepcidin levels in children ages 6 to 59 mo seems to be dependent on inflammation. Taken together, the results reinforce the need for the development of further studies to better understand the relationship between vitamin A and anemia of inflammation.

Asunto(s)

Anemia Ferropénica , Anemia , Adolescente , Adulto , Anemia/epidemiología , Anemia Ferropénica/epidemiología , Brasil , Proteína C-Reactiva/análisis , Niño , Estudios Transversales , Hepcidinas , Humanos , Hierro , Deficiencias de Hierro , Persona de Mediana Edad , Vitamina A , Adulto Joven

RESUMEN

There has been no established food and nutrition guidance for diseases characterized by the presence of iron overload (IOL) yet. Hepcidin is a hormone that diminishes iron bioavailability. Its levels increase in response to increased iron stores. Hence, IOL conditions could hypothetically trigger a self-regulatory mechanism for the reduction of the intestinal absorption of iron. In addition, some food substances may modulate intestinal iron absorption and may be useful in the dietary management of patients with IOL. This scoping review aimed to systematize studies that support dietary prescriptions for IOL patients. It was carried out according to the method proposed by the Joanna Briggs Institute and the preferred reporting items for systematic reviews and meta-analyses (PRISMA). Although the need to restrict iron in the diet of individuals with hemochromatosis is quite clear, there is a consensus that IOL diminishes the rate of iron absorption. Reduced iron absorption is also present and has been reported in some diseases with transfusion IOL, in which serum hepcidin is usually high. The consumption of polyphenols and 6-shogaol seems to reduce iron absorption or serum ferritin concentration, while procyanidins do not cause any changes. Vitamin C deficiency is often found in IOL patients. However, vitamin C supplementation and alcohol consumption should be avoided not only because they increase iron absorption, but also because they provoke toxic oxidative reactions when the iron is excessive. Dietary approaches must consider the differences in the pathophysiology and treatment of IOL diseases.

Asunto(s)

Hemocromatosis , Sobrecarga de Hierro , Ferritinas , Hemocromatosis/complicaciones , Hepcidinas/metabolismo , Humanos , Absorción Intestinal , Hierro/metabolismo , Sobrecarga de Hierro/etiología , Hierro de la Dieta/efectos adversos , Nutrientes

RESUMEN

OBJECTIVE: To evaluate dietary fibre intake in Brazilian adolescents and its association with nutritional status. DESIGN: This was a cross-sectional study including data from the Brazilian multicentre Study of Cardiovascular Risks in Adolescents (ERICA). Data analysed were geographic region, sex, age, nutritional status, sexual maturation stage, socioeconomic status, school type and level of physical activity. For nutritional status classification, BMI/age was used by sex. Dietary intake was assessed by 24-h recall. Dietary fibre intake was expressed in g/d, and adequacy was determined using dietary reference intake (DRI) values. Complex sample design was considered in statistical analysis, and logistic regression was used to estimate OR for fibre intake and nutritional status. SETTING: Brazilian municipalities with more than 100 000 inhabitants. PARTICIPANTS: A total of 71 740 adolescents aged 12-17 years were included. RESULTS: The average total dietary fibre intake was 19·1 g/d (95 % CI 18·5, 19·7), and only 13·1 % (95 % CI 11·6, 14·7) of Brazilian adolescents reached the recommendations. The results of logistic regression analysis adjusted for geographic region, sex and type of school showed that overweight and obese adolescents were 1·6 and 1·8 times more likely, respectively, to have inadequate dietary fibre intake (P < 0·0001). CONCLUSIONS: Brazilian adolescents had a significantly inadequate dietary fibre intake. This was particularly notable in adolescents with excess weight. Education policies on nutrition must be implemented, as dietary fibre plays an important role in the prevention and treatment of obesity and other chronic diseases.

Asunto(s)

Fibras de la Dieta/administración & dosificación , Factores de Riesgo de Enfermedad Cardiaca , Estado Nutricional , Adolescente , Índice de Masa Corporal , Brasil , Enfermedades Cardiovasculares , Niño , Estudios Transversales , Dieta , Ingestión de Energía , Humanos , Factores de Riesgo

RESUMEN

Objetivo: Descrever as características clínicas, sociais e nutricionais de crianças com doença falciforme de 5-9 anos. Método: Trata-se de estudo seccional em amostra aleatória de 190 crianças avaliada entre 2015 e 2016, cadastradas em um hospital de referência em hematologia do Rio de Janeiro, Brasil. Resultados: A maioria das crianças estudadas possuía o genótipo Hb SS (65,3%), teve seu diagnóstico na triagem neonatal (91%) e iniciou o acompanhamento médico antes dos seis meses de idade (91,5%). Excesso de peso e baixa estatura foram encontrados em 14,2% e 6,2% das crianças, respectivamente. Em relação às condições sociais da família, a maioria dos pais possuíam companheiros (60,5%), viviam com até meio salário mínimo (55,8%) e as mulheres deixaram seus empregos para acompanhar o tratamento da criança (52,4%). Conclusão: As crianças com doença falciforme foram diagnosticadas precocemente, aproximadamente um sexto delas estavam em excesso de peso e 20% declararam renda de até um quarto de salário mínimo. O fortalecimento da rede de atenção no SUS às pessoas com DF é uma importante medida para mitigar os problemas identificados neste estudo. (AU)

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Objective: To describe the clinical, social and nutritional characteristics of children with sickle cell disease aged 5 to 9 years. Method: Cross-sectional study carried out in 2015- 2016 with a random sample of 190 children receiving care at a reference hematology hospital in Rio de Janeiro, Brazil. Results: The majority of the children had the genotype Hb SS (65.3%), were diagnosed with SCD during newborn screening (91%) and began clinical treatment before six months of age (91.5%). Overweight and low stature were found in 4.2% and 6.2% of the children, respectively. With respect to the household socioeconomic conditions, most of the parents had a partner (60.5%), lived with up to half the minimum wage (55.8%), and the women quitted their jobs to take care of their children (52.4%). Conclusion: Children with sickle cell disease were diagnosed early; nearly one sixth of them were overweight; and 20% of the parents had income of up to one fourth of the minimum wage. Strengthening the health care network in SUS for individuals with SCD is of vital importance to mitigate the problems identified in this study. (AU)

Asunto(s)

Humanos , Masculino , Femenino , Preescolar , Niño , Factores Socioeconómicos , Estado Nutricional , Anemia de Células Falciformes , Condiciones Sociales , Composición Familiar , Estudios Transversales

RESUMEN

Vitamin D plays a role in bone and metabolic health in life long, however hypovitaminosis D is common in different settings. The aim of this study was to describe vitamin D status among adolescents from a large sunny country and analyze associated factors. This was a multicenter, cross-sectional, school-based study. A total of 1152 adolescents age 12-17 from four Brazilian cities, Rio de Janeiro, Fortaleza, Brasília, and Porto Alegre, were included. Anthropometric variables, diet, type of school, race and season of data collection were evaluated. Serum concentrations of 25-hydroxyvitamin D [25(OH)D] were measured and categorized into three levels: ≤ 20 ng/mL, 21-29 ng/mL and ≥ 30 ng/mL. Ordered logistic regression models were used to explore the factors associated with hypovitaminosis D. The prevalence of vitamin D levels below 20 ng/mL, between 21 and 29 ng/mL and above 30 ng/mL was 21 % (95 %CI: 19 %-24 %), 42 % (95 %CI: 39 %-46 %) and 37 % (95 %CI: 33 %-40 %), respectively. In the final adjusted model, hypovitaminosis D was positively associated with gender, center (latitudes), data collected in winter or spring, non-whites, and private school students. A higher proportional odds ratio (POR) for hypovitaminosis D was found among obese boys (POR = 2.2, 95 %CI: 1.1-4.5), but not girls. Adequate dietary intake of vitamin D was a protective factor (POR = 0.4, 95 %CI: 0.2-0.6) against hypovitaminosis D. In conclusion, there is a high prevalence of Brazilian adolescents at risk of hypovitaminosis D, independent of region. Due to their potential benefits, lifestyle changes should be stimulated, including healthier food choices and spending more time outdoors (with sun protection).

Asunto(s)

Deficiencia de Vitamina D/metabolismo , Vitamina D/análogos & derivados , Vitamina D/metabolismo , Adolescente , Brasil/epidemiología , Calcifediol/metabolismo , Calcifediol/uso terapéutico , Niño , Estudios Transversales , Dieta , Femenino , Humanos , Estilo de Vida , Masculino , Factores de Riesgo , Estaciones del Año , Caracteres Sexuales , Luz Solar , Vitamina D/uso terapéutico , Deficiencia de Vitamina D/epidemiología , Deficiencia de Vitamina D/patología

RESUMEN

BACKGROUND & AIMS: The nutritional status of people with human T-lymphotropic virus (HTLV-1) infection has been poorly described because it involves a neglected disease. The few studies that have been conducted mostly involve people with neurologic consequences and the possible clinical evolutions of the disease. The aim of this study was to describe the nutritional status of patients with HTLV-1, including those with associated myelopathy/tropical spastic paraparesis, and to evaluate food security in these patients. METHODS: A retrospective observational study was conducted in people with HTLV-1 admitted to a referral hospital. We collected data from 17 medical records, including anthropometric data (i.e., body mass index, mid-upper arm circumference, triceps skinfold, and mid-arm muscle circumference), laboratory test results (i.e., haemoglobin, haematocrit, albumin, globulin, iron fixation capacity, and iron), the Subjective Global Assessment (SGA) method, and food security (Brazilian Food Insecurity Scale) data. The data were analysed using the R-project software. To evaluate possible associations between the outcomes and predictors (age at hospitalisation, food security, presence of children <18 years of age living in the household, income, schooling, ANSG, BMI, difference between ideal weight and hospitalisation, TSF, MUAC ICU days, hospitalisation outcome, rehospitalisation in the first year after discharge, interval between readmissions, death, associated conditions, constipation upon admission), we used Kruskal-Wallis, Mann-Whitney, Fisher's exact, chi-square tests with continuity correction, and Spearman's correlation coefficient. Hypothesis tests were considered statistically significant when p ≤ 0.05. RESULTS: The mean age of the patients was 57 (52-60) years. The patients were predominantly women (59%) and had an income lower than the local minimum wage with at least 6 years of schooling (52.3%). Only 18.2% of patients were eutrophic according to their BMI and 23.5% of patients were malnourished based on the SGA method. Patients predominantly had food security (64.7%) and good intestinal functions (64.7%) during their hospital stay. CONCLUSION: Despite having a limited number of patients in this study, HTLV-1 patients admitted to hospital are at high risk of malnutrition based on the scores from the SGA method.

Asunto(s)

Abastecimiento de Alimentos , Infecciones por HTLV-I/complicaciones , Desnutrición/complicaciones , Estado Nutricional , Obesidad/complicaciones , Antropometría , Índice de Masa Corporal , Brasil , Femenino , Infecciones por HTLV-I/epidemiología , Hospitalización , Virus Linfotrópico T Tipo 1 Humano , Humanos , Tiempo de Internación , Masculino , Desnutrición/epidemiología , Persona de Mediana Edad , Evaluación Nutricional , Obesidad/epidemiología , Estudios Retrospectivos

RESUMEN

Abstract Objective: To examine the associations between food insecurity (IA) and social support in families of children with sickle-cell disease (DF). Methods: This cross-sectional study in families of 190 children from five to nine years old in follow-up at a hematology referral hospital in Rio de Janeiro State. IA was measured using the Brazilian food insecurity scale and social support was measured using the Brazilian version of the MOS social support survey instrument. The relation between IA and social support was analyzed by way of a multinomial logistic model. Results: There was IA in 62.2% of the families, in moderate and severe form in, respectively, 11.1% and 7.9% of cases. In families of children with DF, levels of mild and severe food insecurity (IALe and IAGr) were found to relate inversely to levels of social support in the following dimensions: informational support (IALe OR = 0.98; 95% CI 0.96-0.99 and IAGr OR = 0.95; 95% CI 0.92-0.98); social interaction (IALe OR = 0.98; 95% CI 0.96-0.99 and IAGr OR = 0.96; 95% CI 0.93-0.99) and tangible social support (IALe OR = 0.97; 95% CI 0.96-0.99 and IAGr OR = 0.97; 95% CI 0.94-0.99). Conclusion: Considering the positive effects of social support on IA, public policies should be encouraged to assure food and nutritional security and social assistance for care for people with DF. Also, social support groups for people with DF should be strengthened.

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Resumo Objetivo: Avaliar as associações entre insegurança alimentar (IA) e apoio social em famílias de crianças com doença falciforme (DF). Métodos: Estudo transversal feito com as famílias de 190 crianças, de cinco a nove anos, atendidas em um hospital de referência em hematologia no Estado do Rio de Janeiro. A IA foi medida com a escala brasileira de insegurança alimentar e o apoio social foi medido com a versão brasileira do instrumento de pesquisa de apoio social MOS. A relação entre IA e o apoio social foi analisada por meio de um modelo logístico multinomial. Resultados: Havia IA em 62,2% das famílias, nas formas moderada e grave em 11,1% e 7,9% dos casos, respectivamente. Em famílias de crianças com DF, os níveis de insegurança alimentar leve e grave (IAL e IAG) apresentaram relação inversa com os níveis de apoio social nas seguintes dimensões: apoio informativo (IAL OR = 0,98; IC 95%: 0,96-0,99 e IAG OR = 0,95; IC 95%: 0,92-0,98); interação social (IAL OR = 0,98; IC 95%: 0,96-0,99 e IAG OR = 0,96; IC 95%: 0,93-0,99) e material (apoio social tangível) (IAL OR = 0,97; IC 95%: 0,96-0,99 e IAG OR = 0,97; 95% CI 0,94-0,99). Conclusão: Considerando os efeitos positivos do apoio social na IA, as políticas públicas devem ser encorajadas a garantir segurança alimentar e nutricional e assistência social para o atendimento de pessoas com DF. Além disso, os grupos de apoio social para pessoas com DF devem ser fortalecidos.

Asunto(s)

Humanos , Masculino , Femenino , Preescolar , Niño , Apoyo Social , Abastecimiento de Alimentos/estadística & datos numéricos , Anemia de Células Falciformes/epidemiología , Factores Socioeconómicos , Índice de Severidad de la Enfermedad , Brasil/epidemiología , Estudios Transversales

RESUMEN

OBJECTIVE: To examine the associations between food insecurity (IA) and social support in families of children with sickle-cell disease (DF). METHODS: This cross-sectional study in families of 190 children from five to nine years old in follow-up at a hematology referral hospital in Rio de Janeiro State. IA was measured using the Brazilian food insecurity scale and social support was measured using the Brazilian version of the MOS social support survey instrument. The relation between IA and social support was analyzed by way of a multinomial logistic model. RESULTS: There was IA in 62.2% of the families, in moderate and severe form in, respectively, 11.1% and 7.9% of cases. In families of children with DF, levels of mild and severe food insecurity (IALe and IAGr) were found to relate inversely to levels of social support in the following dimensions: informational support (IALe OR=0.98; 95% CI 0.96-0.99 and IAGr OR=0.95; 95% CI 0.92-0.98); social interaction (IALe OR=0.98; 95% CI 0.96-0.99 and IAGr OR=0.96; 95% CI 0.93-0.99) and tangible social support (IALe OR=0.97; 95% CI 0.96-0.99 and IAGr OR=0.97; 95% CI 0.94-0.99). CONCLUSION: Considering the positive effects of social support on IA, public policies should be encouraged to assure food and nutritional security and social assistance for care for people with DF. Also, social support groups for people with DF should be strengthened.

Asunto(s)

Anemia de Células Falciformes/epidemiología , Abastecimiento de Alimentos/estadística & datos numéricos , Apoyo Social , Brasil/epidemiología , Niño , Preescolar , Estudios Transversales , Femenino , Humanos , Masculino , Índice de Severidad de la Enfermedad , Factores Socioeconómicos

RESUMEN

Dietary iron requirements in patients with sickle cell disease (SCD) remain unclear. SCD is a neglected hemoglobinopathy characterized by intense erythropoietic activity and anemia. Hepcidin is the hormone mainly responsible for iron homeostasis and intestinal absorption. Intense erythropoietic activity and anemia may reduce hepcidin transcription. By contrast, iron overload and inflammation may induce it. Studies on SCD have not evaluated the role of hepcidin in the presence and absence of iron overload. We aimed to compare serum hepcidin concentrations among individuals with sickle cell anemia, with or without iron overload, and those without the disease. Markers of iron metabolism and erythropoietic activity such as hepcidin, ferritin, and growth differentiation factor 15 were evaluated. Three groups participated in the study: the control group, comprised of individuals without SCD (C); those with the disease but without iron overload (SCDw); and those with the disease and iron overload (SCDio). Results showed that hepcidin concentration was higher in the SCDio > C > SCDw group. These data suggest that the dietary iron intake of the SCDio group should not be reduced as higher hepcidin concentrations may reduce the intestinal absorption of iron.

Asunto(s)

Anemia de Células Falciformes/sangre , Hepcidinas/sangre , Hierro de la Dieta/administración & dosificación , Hierro/administración & dosificación , Adolescente , Adulto , Biomarcadores , Estudios de Casos y Controles , Femenino , Humanos , Absorción Intestinal/fisiología , Hierro/metabolismo , Sobrecarga de Hierro , Masculino , Persona de Mediana Edad , Ingesta Diaria Recomendada , Adulto Joven

RESUMEN

BACKGROUND: The World Health Organization (WHO) recommends the use of dietary counseling to overcome malnutrition for patients with tuberculosis, with or without HIV, however the response to nutritional treatment depends on patient's adherence to nutritional counseling. OBJECTIVE: Identify the degree of adherence to dietary counseling and predictors of adherence among patients undergoing tuberculosis treatment. DESIGN: Observational prospective follow-up study conducted in adults treating for tuberculosis with or without HIV. Self-reported adherence and 24-h diet recall were checked. Diet counseling according to WHO strategy was offered at each visit for all patients. The endpoint was the adherence to the recommended dietary allowance (RDA) and total calories consumed during tuberculosis treatment. Data were mainly analyzed with marginal models to estimate adjusted trajectories. RESULTS: Sixty-eight patients were included in the study. The maximum probability of total calories consumption of at least one RDA was 80%. The adherence to dietary counseling was low regardless of HIV infection. The negative determinants of adherence were the presence of loss of appetite and nausea/vomiting. For patients with loss of appetite and nausea/vomiting, the probability of total calories consumption of at least one RDA is less than 20% at any time. CONCLUSION: The loss of appetite and nausea/vomiting are highly prevalents and were the main causes of non-adherence to dietary counseling.

Asunto(s)

Antituberculosos/uso terapéutico , Consejo , Desnutrición/dietoterapia , Apoyo Nutricional/métodos , Cooperación del Paciente , Tuberculosis/tratamiento farmacológico , Adulto , Fármacos Anti-VIH/uso terapéutico , Antituberculosos/efectos adversos , Regulación del Apetito , Brasil/epidemiología , Coinfección , Ingestión de Energía , Femenino , Estudios de Seguimiento , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/epidemiología , Humanos , Estudios Longitudinales , Masculino , Desnutrición/diagnóstico , Desnutrición/epidemiología , Desnutrición/fisiopatología , Persona de Mediana Edad , Náusea/epidemiología , Evaluación Nutricional , Estado Nutricional , Valor Nutritivo , Estudios Prospectivos , Ingesta Diaria Recomendada , Factores de Tiempo , Resultado del Tratamiento , Tuberculosis/diagnóstico , Tuberculosis/epidemiología , Tuberculosis/microbiología , Vómitos/epidemiología

RESUMEN

UNLABELLED: The Brazilian Ministry of Health and the World Health Organization recommend dietary counseling for patients with malnutrition during tuberculosis treatment. Patients under tuberculosis therapy (infected and not infected with HIV) were followed-up to evaluate the effectiveness of dietary counseling. OBJECTIVE: describe the nutritional status of patients with tuberculosis. METHODS: an observational follow-up study over a 180-day period of tuberculosis therapy in adults was conducted. Subjects were assessed for body composition (using BMI, TSF and MUAC parameters), serum biomarkers and offered dietary counseling. The data obtained at each visit (D15, D30, D60, D90, D120, D150, and D180) were analyzed, showing trajectories over time and central tendencies each time. RESULTS: at baseline, the mean age was 41.1 (± 13.4) years; they were predominantly male, with income lower than a local minimum wage and at least six years of schooling. Patients showed predominantly pulmonary tuberculosis. At baseline, all patients suffered from malnutrition. The overall energy malnutrition prevalence was of 70.6%. Anemia at baseline was observed in both groups (63.2%), however, it was significantly more pronounced in the HIV+. At the end, energy malnutrition was reduced to 57.1% (42.9% of HIV- and 71.4% of the HIV+). Micronutrients malnutrition was evident in 71.4% of the HIV- patients and 85.7% of HIV+ patients at the end of tuberculosis therapy. Using BMI (≤ 18.5 kg/m2cutoff) as an index of malnutrition, it was detected in 23.9% of the HIV- and 27.3% of the HIV+ patients at baseline, with no evident improvement over time; using TSF (≤ 11.4mm as cutoff) or MUAC (≤ 28.5cm as cutoff), malnutrition was detected in 70.1% and 85.3% of all patients, respectively. Nevertheless, combining all biomarkers, at the end of follow-up, all patients suffered from malnutrition. CONCLUSION: Although with a limited number of patients, the evidence does not support that dietary counseling is effective to recover from malnutrition in our population.

Asunto(s)

Consejo/normas , Suplementos Dietéticos , Infecciones por VIH/complicaciones , Desnutrición/dietoterapia , Terapia Nutricional/normas , Tuberculosis/complicaciones , Adulto , Composición Corporal , Índice de Masa Corporal , Brasil , Femenino , Estudios de Seguimiento , Humanos , Masculino , Desnutrición/etiología , Estado Nutricional

RESUMEN

Objetivos: Investigar a ocorrência de sobrecrescimento bacteriano no intestino delgado; pesquisar a absorçao e a tolerância à lactose; avaliar a ocorrência de deficiência de ferro e estudar a relaçao entre má absorçao de lactose, sobrecrescimento bacteriano no intestino delgado e deficiência de ferro corporal. Metodologia: Este estudo foi desenvolvido com 104 pré-escolares de duas creches públicas da Cidade do Rio de Janeiro. Foram realizadas avaliaçao antropométrica, teste do hidrogênio no ar expirado com administraçao de lactulose e lactose e avaliaçao bioquímica. O teste com lactulose foi realizado com oferta de 10 gramas. As amostras de ar expirado foram coletadas em jejum, 15, 30, 45, 60, 90, 120, 150 e 180 minutos. O ponto de corte para o diagnóstico de sobrecrescimento bacteriano no intestino delgado foi o incremento na concentraçao de hidrogênio maior ou igual a 20 ppm acima do valor basal em jejum, nas amostras coletadas aos 15 e/ou 30 minutos, ou valor de hidrogênio na amostra basal 3 42 ppm. O teste com lactose foi realizado após jejum de 12 horas, com oferta de 2 gramas/kg de peso corporal em soluçao aquosa a 10 por cento. O ponto de corte para má absorçao da lactose foi o aumento da concentraçao de hidrogênio igual ou acima de 20 ppm em relaçao ao valor de jejum, em qualquer amostra de ar expirado coletada até 180 minutos. A identificaçao da deficiência de ferro foi realizada com o emprego do hemograma completo, ferritina, ferro sérico e capacidade total de ligaçao do ferro. Feito também parasitológico e sangue oculto nas fezes. Resultados: O estado nutricional esteve adequado em 100 (96,2 por cento) crianças. Duas crianças (1,9 por cento) apresentaram baixo peso e outras duas (1,9 por cento) baixa estatura. O parasitológico foi positivo em 24 (26,1 por cento) crianças e a presença de infestaçao mista, em 3 (3,3 por cento). O teste respiratório com lactulose identificou 9 (9,1 por cento) crianças nao produtoras de hidrogênio e 10 (10,1 por cento) com sobrecrescimento bacteriano. Houve associaçao significante entre parasitose intestinal e sobrecrescimento bacteriano. 43 crianças (47,8 por cento) apresentaram má absorçao da lactose e cinco foram intolerantes à lactose. Nao houve diferença significante entre o consumo de leite dos maus absorvedores de lactose é 'os de absorçao normal. Os exames bioquímicos de sangue revelaram que 16 (15,4 por cento) crianças eram anêmicas (hemoglobina < 11,0 g/dL) e 19 (35,9 por cento) apresentavam reserva...(au)

Asunto(s)

Humanos , Preescolar , Anemia Ferropénica , Hidrógeno/análisis , Intestino Delgado/microbiología , Lactosa , Intolerancia a la Lactosa