Use of a commercial agarose gel for analysis of urinary glycosaminoglycans in mucopolysaccharidoses

Mucopolysaccharidoses (MPS) are a group of inherited metabolic disorders caused by deficiency of enzymes that degrade glycosaminoglycans (GAGs). Urinary excretion of GAGs is a common feature of MPS, and is considered their major biomarker. We aimed to adapt the GAG electrophoresis method to a commercial agarose gel which would be able to separate urinary GAGs in a simpler way with good sensitivity and reproducibility. Urine samples from patients previously diagnosed with MPS I, IV, and VI were used as electrophoretic standards. Samples from patients on enzyme replacement therapy (ERT) were also assessed. Commercial agarose gel electrophoresis was effective, showing proper definition and separation of GAG bands. Detection sensitivity exceeded 0.1 µg and band reproducibility were consistent. GAG bands quantified in urine samples from patients on ERT correlated very strongly (correlation coefficient = 0.98) with total GAG concentrations. This application of gel electrophoresis demonstrates the possibility of monitoring patients with MPS treated with ERT by analyzing separately the GAGs excreted in urine. We suggest this process should be applied to MPS screening as well as to follow-up of patients on treatment

Behavioral and biochemical effects of pharmacopuncture (ST 36 and ST 25) in obese rats

Background: Acupuncture has been reported as a weight loss treatment for obese patients. The use of pharmacopuncture focusing on behavioral analyses has not yet been studied with the objective of treating obesity. Thus, this study aimed to assess the biochemical and behavioral effects of using pharmacopuncture techniques in obese Wistar rats. Methods: The treatments consisted in applying pharmacopuncture at the Zusanli (ST 36) and Tianshu (ST 25) points. Results: When treated with pharmacopuncture, groups HDP36 and HDP25 experienced a reduction in body weight compared to the controls, who were also fed a hypercaloric diet. In the alimentary behavior test, latency to feed did not differ between the groups. However, groups HDP36 and HDP25 consumed a smaller number of cereals bits, which suggests that inappetence was an effect of the treatment. No difference was found among the groups in the elevated plus maze test, which indicates no anxiety action of the points studied. Regarding post mortem perirenal and abdominal fat among the groups fed a hypercaloric diet, groups HDP36 and HDP25 had lower perirenal fat weight and HDP36 had lower abdominal fat weight compared to the other groups. Likewise, a reduction in cholesterol 10.1186/s12906-015-0829-7 and glucose levels was found in groups HDP36 and HDP25 compared to the other groups that were fed a hypercaloric diet, while triglycerides decreased in subgroup HDP25 Conclusions: In conclusion, the present study showed the efficacy of pharmacopuncture in weight loss of obese rats, as well as changes in biochemical and behavioral parameters

Señales y síntomas de la Enfermedad de Gaucher : diagnósticos prioritarios de enfermería

Objetivo: Identifi car os sinais e sintomas de pacientes com Doença de Gaucher, inferindo os possíveis diagnósticos de enfermagem prioritários. Método: Estudo transversal, desenvolvido em laboratório especializado, entre 2013 e 2015. A amostra (n=91) foi constituída dos registros de pacientes com diagnóstico genético para Doença de Gaucher. O estudo respeitou normas de pesquisa. Resultados: Foram prevalentes o sexo feminino (57,1%), faixa etária ao diagnóstico entre 0 e 10 anos e proveniência da Região Sudeste do Brasil. Alterações hematológicas, dor óssea, hepatomegalia, esplenomegalia, cansaço foram os sinais e sintomas mais recorrentes. Os diagnósticos inferidos para a população estudada foram: Risco de sangramento; Fadiga; Dor crônica e Dor aguda; Mobilidade física prejudicada; Nutrição desequilibrada: menos do que as necessidades corporais; e Risco de Desenvolvimento atrasado. Conclusão: O estabelecimento dos Diagnósticos de Enfermagem prioritários a partir dos sinais e sintomas possibilita alcançar resultados esperados a cada indivíduo no contexto do cuidado.Objective: Identify the signs and symptoms of patients with Gaucher Disease, inferring possible priority nursing diagnoses. Method: Cross-sectional study, developed in a specialized laboratory, between 2013 and 2015. The sample (n = 91) comprised the records of patients with genetic diagnosis for Gaucher Disease. The study respected research norms. Results: Prevalence of female sex (57.1%), age at diagnosis between 0 and 10 years, and origin from the Southeast Region of Brazil were prevalent. Hematologic changes, bone pain, hepatomegaly, splenomegaly, and fatigue were the most recurrent signs and symptoms. The inferred diagnoses for the studied population were: Risk for bleeding; Fatigue; Chronic pain and Acute pain; Impaired physical mobility; Imbalanced nutrition: less than body requirements; and Risk for Developmental Delay. Conclusion: The establishment of Priority Nursing Diagnoses based on signs and symptoms makes it possible to achieve expected outcomes for each individual in the care context.Objetivo: Identifi car las señales y los síntomas de pacientes con Enfermedad de Gaucher, infi riendo los posibles diagnósticos prioritarios de enfermería. Método: Estudio transversal, desarrollado entre 2013 y 2015 en un laboratorio especializado. La muestra (n=91) estaba constituida por los registros de pacientes con diagnóstico genético de la Enfermedad de Gaucher. El estudio respetó las normas de la investigación. Resultados: Prevaleció el sexo femenino (57,1%), con franja de edad entre 0 y 10 años y procedencia de la Región Sureste de Brasil. Las alteraciones hematológicas, el dolor óseo, la hepatomegalia, la esplenomegalia y el cansancio fueron las señales y los síntomas más recurrentes. Los diagnósticos inferidos de la población estudiada fueron: Riesgo de sangrado; Fatiga; Dolor crónico y Dolor agudo; Movilidad física perjudicada; Nutrición desequilibrada: menos que las necesidades corporales; y Riesgo de Desarrollo atrasado. Conclusión: El establecimiento de los diagnósticos prioritarios de enfermería, a partir de las señales y de los síntomas, permite obtener los resultados esperados para cada individuo en el contexto del cuidado

Caracterização clínica e bioquímica de pacientes com galactosemia clássica

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Detecção de glicosilceramida em plasma de pacientes com doença de Gaucher

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Detecção bioquímica de defeitos de b-oxidação mitocondrial de ácidos graxos em pacientes com perfil clínico-laboratorial sugestivo de erros inatos do metabolismo

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Population analysis of the GLB1 gene in South Brazil

Infantile GM1 gangliosidosis is caused by the absence or reduction of lysosomal beta-galactosidase activity. Studies conducted in Brazil have indicated that it is one of the most frequent lysosomal storage disorders in the southern part of the country. To assess the incidence of this disorder, 390 blood donors were tested for the presence of two common mutations (1622–1627insG and R59H) in the GLB1 gene. Another group, consisting of 26 GM1 patients, and the blood donors were tested for the presence of two polymorphisms (R521C and S532G), in an attempt to elucidate whether there is a founder effect. The frequencies of the R59H and 1622–1627insG mutations among the GM1 patients studied were 19.2% and 38.5%, respectively. The frequency of polymorphism S532G was 16.7%, whereas R521C was not found in the patients. The overall frequency of either R59H or 1622–1627insG was 57.7% of the disease-causing alleles. This epidemiological study suggested a carrier frequency of 1:58. Seven different haplotypes were found. The 1622–1627insG mutation was not found to be linked to any polymorphism, whereas linkage disequilibrium was found for haplotype 2 (R59H, S532G) (p < 0.001). These data confirm the high incidence of GM1 gangliosidosis and the high frequency of two common mutations in southern Brazil