Abstract This study was performed to evaluate the interplay between dental caries, nutritional status, and genetic polymorphisms in TAS1R1 and TAS1R2 (taste receptor, type 1, member 1 and 2) in preschool children and pre-adolescents. We included 525 subjects (306 preschool children and 219 pre-adolescents). Parents/caregivers answered a self-administered questionnaire about their children’s systemic health, characteristics, oral hygiene habits, and diet. Clinical examination was performed to evaluate dental caries and nutritional status. Saliva samples were collected for DNA extraction. The genotyping of rs17492553 ( TAS1R1 ), rs3935570, and rs4920566 ( TAS1R2 ) polymorphisms was performed using real-time PCR with Taqman Genotyping Master Mix and SNP assay. Both univariate and multivariate Poisson regression analyses with robust variance were used for the data analysis. In preschool children, consumption of sweets between meals increased the prevalence of dental caries by 85% (PR c = 1.85; 95%CI 1.39–2.46; p < 0.001), whereas in pre-adolescents, this prevalence increased by 34% (PR a = 1.34; 95%CI 1.11–1.62; p = 0.002), regardless of genetic polymorphisms . Moreover, individuals carrying at least one allele C in rs17492553 presented 23% more prevalence of dental caries (PR a = 1.23; 95%CI 1.02–1.49 p = 0.030). Nutritional status was not associated with dental caries, neither with genetic polymorphisms . Consumption of sweets between meals increased the prevalence of dental caries. In pre-adolescents, rs17492553 genetic polymorphism in TAS1R1 was associated with dental caries.

Resumo Introdução: A lesão renal aguda (LRA) é uma complicação ainda pouco estudada no contexto das pacientes obstétricas, que está associada com aumento da mortalidade. Objetivo: Investigar a frequência e os fatores de risco da LRA entre pacientes obstétricas. Métodos: Foi realizado estudo transversal com todas as pacientes admitidas em uma unidade de terapia intensiva (UTI) devido a complicações obstétricas em Fortaleza, Brasil, no período de janeiro de 2012 a dezembro de 2014. LRA foi definida de acordo com o critério AKIN. Resultados: Foram incluídas 389 pacientes, com idade entre 13 e 45 anos. As principais causas de admissão na UTI foram síndromes hipertensivas da gestação (54,5%), hemorragia e choque hemorrágico (12,3%), cardiopatias (9,0%), insuficiência respiratória (8,2%) e sepse (5,4%). LRA foi encontrada em 92 casos (24%), e esta foi a complicação mais frequente. A mortalidade geral foi de 7,5%, e a mortalidade por LRA foi de 21% (p = 0,0007). Na análise multivariada, os fatores de risco para LRA foram parto cesariano (IC 95% = 0,23-0,85, p = 0,01) e plaquetopenia (IC 95% = 1,50-4,36, p = 0,001). LRA foi um fator de risco independente para óbito (OR = 6,64, IC 95% = 3,11-14,15, p < 0,001). Conclusão: LRA foi a complicação mais frequente em pacientes obstétricas gravemente doentes e esteve associada com aumento da mortalidade. A maioria dos casos esteve associada às síndromes hipertensivas da gravidez, que são complicações passíveis de tratamento durante o pré-natal.

Abstract Introduction: Acute kidney injury (AKI) is a complication still poorly studied in the setting of obstetric patients, which is associated with increased mortality. Objective: The aim of this study was to investigate the frequency and risk factors of AKI among critically ill obstetric patients. Methods: A cross-sectional study was conducted with all patients admitted to an intensive care unit (ICU) due to obstetric complications, in Fortaleza, Brazil, in the period between January 2012 and December 2014. AKI was defined according to AKIN criteria. Results: A total of 389 patients were included, aged between 13 and 45 years. The main causes of ICU admission were pregnancy-related hypertensive syndromes (54.5%), hemorrhage and hemorrhagic shock (12.3%), heart diseases (9.0%), respiratory insufficiency (8.2%) and sepsis (5.4%). AKI was found in 92 cases (24%), and this was the most frequent complication. General mortality was 7.5%, and mortality due to AKI was 21% (p = 0.0007). In the multivariate analysis, risk factors for AKI were cesarian delivery (95% CI = 0.23-0.85, p = 0.01) and thrombocythopenia (95% CI = 1.50-4.36, p = 0.001). AKI was an independent risk factor for death (OR = 6.64, 95% CI = 3.11-14.15, p < 0.001). Conclusion: AKI was the main complication among critically ill obstetric patients and it was associated with increased mortality. Most cases were associated with pregnancy-related hypertensive disorders, which are complications that can be easily identified and treated during prenatal care.

Because an enriched environment (EE) enhances T-cell activity and T-lymphocytes contribute to immunopathogenesis during heterologous dengue virus (DENV) infections, we hypothesised that an EE increases dengue severity. To compare single serotype (SS) and antibody-enhanced disease (AED) infections regimens, serial intraperitoneal were performed with DENV3 (genotype III) infected brain homogenate or anti-DENV2 hyperimmune serum followed 24 h later by DENV3 (genotype III) infected brain homogenate. Compared AED for which significant differences were detected between the EE and impoverished environmental (IE) groups (Kaplan-Meyer log-rank test, p = 0.0025), no significant differences were detected between the SS experimental groups (Kaplan-Meyer log-rank test, p = 0.089). Survival curves from EE and IE animals infected with the AED regimen were extended after corticoid injection and this effect was greater in the EE than in the IE group (Kaplan-Meyer log-rank test, p = 0.0162). Under the AED regimen the EE group showed more intense clinical signs than the IE group. Dyspnoea, tremor, hunched posture, ruffled fur, immobility, pre-terminal paralysis, shock and death were associated with dominant T-lymphocytic hyperplasia and presence of viral antigens in the liver and lungs. We propose that the increased expansion of these memory T-cells and serotype cross-reactive antibodies facilitates the infection of these cells by DENV and that these events correlate with disease severity in an EE.

Um método alternativo para determinação de etambutol (ETB) por espectrofotometria UV em formulações farmacêuticas por complexação com Cu(II) foi otimizado usando um planejamento fatorial completo 3², tendo como variáveis Cu(II) e tampão aquoso de acetato de sódio em pH 4,6. A estequiometria predominante do complexo em solução aquosa tamponada nesse pH e a constante de formação do complexo foram obtidas usando o método de Job e o diagrama de Scatchard, respectivamente. A estrutura cristalina do complexo de monocristal foi obtida por difração de raios X. O método espectrofotométrico foi aplicado na análise de formulação farmacêutica sendo encontrado: 408,0 ± 11,9 mg de ETB·2HCl, faixa de recuperação de 100,9-104,0% e limites de detecção e quantificação de 0,8 e 2,8 mg L-1, respectivamente. O método espectrofotométrico ao ser comparado com o método por eletroforese capilar de zona não evidenciou diferenças significativas no intervalo de 95% de confiança

An alternative method for ethambutol (ETB) determination by UV spectrophotometry in pharmaceutical formulations using ETB complexation with Cu(II) was optimized employing a 3² full experimental design having Cu(II) and aqueous acetic acid/sodium acetate buffer at pH 4.6 as variables. The predominant complex stoichiometry in aqueous buffer solution at this pH and formation constant were obtained by using Job's method and Scatchard diagram, respectively. The complex crystalline structure of monocrystal was obtained by X-ray diffraction. The developed method was applied to the pharmaceutical formulation analysis being found: 408.0 ± 11.9 mg of ETB·2HCl, recovery range of 100.9-104.0% and detection and quantification limits of 0.8 and 2.8 mg L-1, respectively. The spectrophotometric method was compared to zone capillary electrophoresis and no significant difference was found within the 95% confidence interval

OBJETIVOS: avaliar o grau de correção da cifose de Scheuermann, em 6 pacientes que se submeteram à instrumentação híbrida composta por ganchos e parafusos (H) e 17 fixados apenas com parafusos (P). MÉTODOS: 23 pacientes, com cifose de Scheuermann, submetidos a tratamento cirúrgico por dupla via com início pela via anterior, seguido pela via posterior. Do conjunto de pacientes, 6 foram operados com fixação híbrida e 17 com uso exclusivo de parafusos pediculares. O tratamento cirúrgico foi indicado para cifose rígida, variando de 60º e 105º e portadores do sinal de Risser acima de 4. RESULTADOS: observou-se, no Grupo H, cifose pré-operatória média de 84,17º e no pós-operatório de 47,5º. No Grupo P, a média de cifose no pré-operatório era de 80,35º e, no pós-operatório, de 33,53º. CONCLUSÃO: concluiu-se que os dois tipos de fixação apresentaram resultados muito satisfatórios, contudo, sendo ainda superior quando fixados só com parafusos.

OBJECTIVE: to evaluate the degree of correction of Sheuermann kyphosis, in 6 patients who were submitted to surgery using hybrid instrumentation comprised of hooks and screws (H), and 17 patients undergoing screw-only fixation (P). METHODS: 23 patients with Scheuermann kyphosis were submitted to surgical treatment using anterior and posterior approach. In the present study, we indicated surgical treatment for rigid kyphosis, varying between 60º and 105º. All patients presented a Risser signal above 4. Liberation and Fusion were realized through anterior approach, followed by fixation, deformity correction, and arthrodesis through posterior approach. RESULTS: in Group H, a preoperative kyphosis of 84.17º and a postoperative of 47.5º were observed. In Group P, a preoperative kyphosis of 80.35º and postoperative of 33.53º were observed. CONCLUSION: it was concluded that both types of fixation presented very satisfactory results, with screw only fixation being superior.

OBJETIVO: evaluar el grado de corrección de la cifosis de Scheuermann, en seis pacientes que se sometieron a la instrumentación híbrida compuesta por ganchos y tornillos (H) y 17 fijados solamente con tornillos (P). MÉTODOS: fueron veintitrés pacientes, con cifosis de Scheuermann, sometidos al tratamiento quirúrgico por dupla vía con inicio por la vía anterior seguido por la posterior. Del conjunto de pacientes, 6 fueron operados con fijación híbrida y 17 con uso exclusivo de tornillos pediculares. El tratamiento quirúrgico fue indicado para cifosis rígida, variando de 60º a 105º y portadores de la Señal de Risser por encima de 4. RESULTADOS: se observó, en el Grupo H, una cifosis preoperatoria promedio de 84.17º y en el postoperatorio de 47.5º. En el Grupo P el promedio de la cifosis en el preoperatorio era de 80.35º y en el postoperatorio de 33.53º. CONCLUSIÓN: los dos tipos de fijación presentaron resultados muy satisfactorios; no obstante, fue superior con la fijación solo con tornillos.