RESUMO
ABSTRACT Objective To review the dietary intake of children and adolescents with type 1 diabetes Mellitus and its association with the glycemic profile. Methods Longitudinal observational study. Dietary intake was measured using a three-day dietary record and the glycemic profile with a continuous glucose monitoring (range between 70 and 180mg/dL) and serum glycated hemoglobin levels (ideal <7.5%). Anthropometric data, insulin therapy, and carbohydrate counting were collected. Results The sample included 34 individuals with type 1 diabetes Mellitus aged 13.6±2.1 years. The majority of the population was eutrophic (76.4%). The entire sample used the basal-bolus insulin regimen, with mean insulin dose of 1.0±0.2U/kg/day; for 44.1% of the sample the carbohydrate counting method was used. Macronutrients intake was adequate in only 8.8% of the individuals, the highest frequency of inadequacy was related to carbohydrates (p=0.07). Inadequate glycemic control with hyperglycemia episodes and high mean glycated hemoglobin (9.7%) was observed in all individuals (61.3±18.5%). Carbohydrate counting was responsible for maintaining the percentage of time that the patient had interstitial blood glucose values within the range >40% (p<0.001) and maintaining the percentage of time in hyperglycemia <50% (p<0.001). Conclusion The majority of individuals were eutrophic, but presented inadequate dietary intake and glycemic control. The method of counting carbohydrates positively influenced the glycemic profile.
RESUMO Objetivo Analisar o consumo alimentar de crianças e de adolescentes com diabetes Mellitus tipo 1 e sua associação com o perfil glicêmico. Métodos Estudo observacional longitudinal. O consumo alimentar foi mensurado por meio de um registro alimentar de três dias, e o perfil glicêmico com um monitor contínuo de glicemia (alvo entre 70 e 180mg/dL) e de níveis séricos de hemoglobina glicada (ideal <7,5%). Foram coletados dados antropométricos, terapia insulínica e contagem de carboidratos. Resultados A amostra foi formada por 34 indivíduos com diabetes Mellitus tipo 1 com idade de 13,6±2,1 anos. A maior parte da população era eutrófica (76,4%). Toda a amostra utilizava o esquema de insulina basal-bolus, com dose média de 1,0±0,2U/kg/dia, e 44,1% realizava o método de contagem de carboidratos. O consumo dos macronutrientes estava adequado em apenas 8,8% dos indivíduos, sendo a maior frequência de inadequação nos carboidratos (p=0,07). Foram observados controle glicêmico inadequado com episódios de hiperglicemia em todos os indivíduos (61,3±18,5%) e média elevada de hemoglobina glicada (9,7%). A realização da contagem de carboidratos foi responsável por manter o percentual de tempo em que o paciente obteve valores de glicemia intersticial dentro do alvo >40% (p<0,001) e por manter o percentual de tempo em hiperglicemia <50% (p<0,001). Conclusão A maior parte dos indivíduos era eutrófica, porém apresentava consumo alimentar e controle glicêmico inadequados. O método de contagem de carboidratos influenciou positivamente o perfil glicêmico.
Assuntos
Humanos , Masculino , Feminino , Criança , Adolescente , Criança , Adolescente , Diabetes Mellitus Tipo 1 , Automonitorização da Glicemia/estatística & dados numéricosRESUMO
OBJECTIVE: To characterize the phenotype of patients with congenital hypothyroidism (CH) due to dyshormonogenesis, and to hypothesize on the degree of genetic defect. SUBJECTS AND METHODS: Patients with dyshormonogenesis were subdivided into G1 (radioactive iodine uptake, RAIU > 15%; n = 62) and G2 (RAIU < 15%; n = 32). Thyroglobulin (TG) was measured in all patients; perchlorate discharge test (PDT) was performed in G1; and saliva-to-plasma radioiodine ratio (I- S/P) in G2. RESULTS: Levels of TSH, TT4, and FT4 before treatment and upon diagnosis confirmation were significantly different in both groups, but not between groups. In G1, 27 patients developed goiter; 17 had positive PDT (14%-71% discharge), 11 had TG < 2.5 ng/dL (one with high TSH), and one developed thyroid carcinoma. In G2, four patients developed goiter, and three had low I- S/P. CONCLUSION: These data suggest an iodide organification defect in 17 cases; an iodide transport defect (NIS defect) in three, probable TSH resistance in 10, and a TG synthesis defect in two cases.
Assuntos
Hipotireoidismo Congênito/genética , Bócio/genética , Iodetos/metabolismo , Iodo/sangue , Tireoglobulina/sangue , Tireotropina/sangue , Adolescente , Brasil , Criança , Hipotireoidismo Congênito/diagnóstico , Bócio/diagnóstico , Humanos , Radioisótopos do Iodo/farmacocinética , Percloratos , Fenótipo , Saliva/químicaRESUMO
OBJECTIVE: To characterize the phenotype of patients with congenital hypothyroidism (CH) due to dyshormonogenesis, and to hypothesize on the degree of genetic defect. SUBJECTS AND METHODS: Patients with dyshormonogenesis were subdivided into G1 (radioactive iodine uptake, RAIU > 15%; n = 62) and G2 (RAIU < 15%; n = 32). Thyroglobulin (TG) was measured in all patients; perchlorate discharge test (PDT) was performed in G1; and saliva-to-plasma radioiodine ratio (I- S/P) in G2. RESULTS: Levels of TSH, TT4, and FT4 before treatment and upon diagnosis confirmation were significantly different in both groups, but not between groups. In G1, 27 patients developed goiter; 17 had positive PDT (14%-71% discharge), 11 had TG < 2.5 ng/dL (one with high TSH), and one developed thyroid carcinoma. In G2, four patients developed goiter, and three had low I- S/P. CONCLUSION: These data suggest an iodide organification defect in 17 cases; an iodide transport defect (NIS defect) in three, probable TSH resistance in 10, and a TG synthesis defect in two cases.
OBJETIVO: Caracterizar o fenótipo de pacientes com hipotireoidismo congênito (HC) por disormonogênese e sugerir o nível do defeito genético. SUJEITOS E MÉTODOS: Pacientes com disormonogênese foram subdivididos em G1 (captação de 131I > 15%; n = 62) e G2 (captação < 15%; n = 32). Tireoglobulina (TG) foi dosada em todos, teste de descarga do perclorato (TDP) foi realizado no G1 e relação iodo salivar/sérico (I- S/P), no G2. RESULTADOS: Os valores de TSH, T4T e T4L pré-tratamento e na confirmação do diagnóstico foram significativamente diferentes em ambos os grupos (p < 0,01), mas não entre eles. No G1, 27 pacientes desenvolveram bócio; TDP foi positivo em 17 (descarga de 14%-71%); 11 tiveram TG < 2,5 ng/dL (um com TSH elevado) e um desenvolveu carcinoma de tireoide. No G2, quatro pacientes desenvolveram bócio e três apresentaram baixa I- S/P. CONCLUSÃO: Esses dados sugerem defeito na organificação do iodeto em 17 casos; defeito no transporte do iodeto (defeito na NIS) em três, provável resistência ao TSH em 10 e defeito na síntese de TG em dois.