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1.
Int J Neonatal Screen ; 10(3)2024 Jul 18.
Artigo em Inglês | MEDLINE | ID: mdl-39051408

RESUMO

A higher incidence of primary congenital hypothyroidism (CH) has been related to increased sensitivity in neonatal screening tests. The benefit of treatment in mild cases remains a topic of debate. We evaluated the impact of reducing the blood-spot TSH cut-off (b-TSH) from 10 (Group 2) to 6 mIU/L (Group 1) in a public neonatal screening program. During the study period, 40% of 123 newborns with CH (n = 162,729; incidence = 1:1323) had b-TSH between 6 and 10 mIU/L. Group 1 patients had fewer clinical signs (p = 0.02), lower serum TSH (p < 0.01), and higher free T4 (p < 0.01) compared to those in Group 2 at diagnosis. Reducing the b-TSH cut-off from 10 to 6 mIU/L increased screening sensitivity, allowing a third of diagnoses, mainly mild cases, not being missed. However, when evaluating the performances of b-TSH cut-offs (6, 7, 8, 9, and 10 mIU/L), the lower values were associated with low positive predictive values (PPVs) and unacceptable increased recall rates (0.57%) for a public health care program. A proposed strategy is to adopt a higher b-TSH cut-off in the first sample and a lower one in the subsequent samples from the same child, which yields a greater number of diagnoses with an acceptable PPV.

2.
Rev. Baiana Saúde Pública ; 48(1): 120-136, 20240426.
Artigo em Português | LILACS | ID: biblio-1555793

RESUMO

Os homicídios de policiais estão associados a fatores individuais, sociais e do trabalho. Dessa forma, o objetivo deste artigo é caracterizar a mortalidade por homicídio de policiais civis da Bahia entre 2012 e 2019. Trata-se de estudo descritivo de vigilância da mortalidade de homicídios de policiais civis da ativa. As variáveis estudadas foram sociodemográficas, da atividade policial e da ocorrência. Na análise foram realizados cálculos de taxas de mortalidade e da estatística descritiva, por meio da linguagem computacional R versão 4.2.2. Foram registrados 27 homicídios de policiais civis da ativa, o que equivale a uma taxa média de 0,58/1000. Na caracterização, todos eram homens, com idade média de 52,5 anos (42 a 63 anos) e 95% negros. Em relação à atividade policial, 76% eram investigadores, com média de 17,9 anos (3 a 33 anos) de serviço e 81% das mortes ocorreram em horário de folga. Em 90% dos homicídios a arma de fogo foi o instrumento causador da morte, e em 62% dos casos a autoria não foi identificada. Conclui-se que o perfil sociodemográfico, do trabalho e das ocorrências de homicídios de policiais civis é semelhante ao perfil encontrado entre policiais militares e sobretudo aos homicídios da população geral.


Police homicides are associated with individual, social, and work-related factors. To characterize mortality due to homicide cases of civil police officers in the State of Bahia from 2012 to 2019.This is a descriptive study of mortality surveillance regarding the homicides of active civil police officers. The variables studied included sociodemographic, police activity, and event occurrence rates. In the analysis, mortality rates and descriptive statistics were calculated using the computational language R, version 4.2.2. Overall, 27 cases of homicide of civil police officers were registered, with an average rate of 0.58/1000 civil police officers. In the characterization, all victims were men with an average age of 52.5 years (42 to 63 years) and a 95% percent Black ethnicity. Regarding police activity, 76% were investigators, with an average of 17.9 years (3 to 33 years) of service, and 81% of deaths occurred during off-duty hours. In 90% of homicide cases, firearms were the instrument that caused death, and in 62% of cases the perpetrator was unidentified. The sociodemographic, work, and homicide profile of civil police officers resembles the profile among military police officers and especially that of homicides in the general population.


Los homicidios de policías están asociados a factores individuales, sociales y laborales. El objetivo de este artículo fue caracterizar la mortalidad por homicidio de policías civiles en el estado de Bahía (Brasil), en el período entre 2012 y 2019. Se trata de un estudio descriptivo de la vigilancia de la mortalidad por homicidios de policías civiles en activo. Las variables estudiadas fueron sociodemográficas, actividad policial y ocurrencia. En el análisis se realizaron cálculos de tasas de mortalidad y estadísticas descriptivas utilizando el lenguaje computacional R, versión 4.2.2.Se registraron 27 homicidios de policías civiles en activo, con una media de 0,58/1000 policías civiles. En la caracterización, todos eran hombres, con media de edad de 52,5 años (42 a 63 años), y el 95%, negros. Con relación a la actividad policial, el 76% se desempeñaban como investigadores, con un promedio de 17,9 años (3 a 33 años) de servicio y el 81% de las muertes ocurrieron fuera de servicio. En el 90% de los homicidios, el arma de fuego fue el instrumento que provocó la muerte y en el 62% de los casos no se identificó al autor. Se concluye que el perfil sociodemográfico, laboral y de homicidios de los policías civiles es similar al perfil encontrado entre los policías militares y, especialmente, a los homicidios en la población general.


Assuntos
Humanos , Masculino , Armas de Fogo , Etnicidade , Registros de Mortalidade , Polícia , Homicídio , Militares
3.
Future Med Chem ; 16(3): 253-269, 2024 02.
Artigo em Inglês | MEDLINE | ID: mdl-38193294

RESUMO

Background: Chagas disease is caused by the parasite Trypanosoma cruzi, and the lack of effective and safe treatments makes identifying new classes of compounds with anti-T. cruzi activity of paramount importance. Methods: Hit-to-lead exploration of a metabolically stable N-imidazoylpiperazine was performed. Results: Compound 2, a piperazine derivative active against T. cruzi, was selected to perform the hit-to-lead exploration, which involved the design, synthesis and biological evaluation of 39 new derivatives. Conclusion: Compounds 6e and 10a were identified as optimized compounds with low micromolar in vitro activity, low cytotoxicity and suitable preliminary absorption, distribution, metabolism and excretion and physicochemical properties. Both compounds reduced parasitemia in mouse models of Chagas disease, providing a promising opportunity for further exploration of new antichagasic compounds.


Assuntos
Doença de Chagas , Tripanossomicidas , Trypanosoma cruzi , Animais , Camundongos , Tripanossomicidas/farmacologia , Tripanossomicidas/química , Doença de Chagas/tratamento farmacológico , Doença de Chagas/parasitologia , Relação Estrutura-Atividade , Parasitemia/tratamento farmacológico
4.
Estud. Psicol. (Campinas, Online) ; 41: e210112, 2024. tab, graf
Artigo em Inglês | LILACS, Index Psicologia - Periódicos | ID: biblio-1557752

RESUMO

Objective The present study sought to investigate changes in mood, inhibitory control, and working memory associated with T. gondii infection in a sample of Brazilian women. Method Twenty-eight female participants were equally distributed into two groups, according to the serology for chronic infection by T. gondii. The participants answered a Sociodemographic questionnaire, the CES-D, and performed Simon and N-Back tasks. Results Infected participants presented less accuracy and longer response time in N-Back tasks. No significant differences were found in the Simon task performance or in the depression levels. Conclusion Our findings suggest that chronic infection by T. gondii may result in impaired working memory and point out the importance of public policies aiming at preventing this infection.


Objetivo O presente estudo investigou alterações de humor, controle inibitório e memória de trabalho associadas à infecção por T. gondii em uma amostra de mulheres brasileiras. Método Vinte e oito participantes foram distribuídas igualmente em dois grupos de acordo com a sorologia para infecção crônica por T. gondii. As participantes responderam a um questionário sociodemográfico, à CES-D e realizaram as tarefas Simon e N-Back. Resultados As participantes infectadas apresentaram menor acurácia e maior tempo de resposta na tarefa N-Back. Nenhuma diferença significativa foi encontrada na tarefa Simon ou na escala de depressão. Conclusão Nossos achados sugerem que a infecção crônica por T. gondii pode resultar em comprometimento da memória de trabalho, e apontam para a importância de políticas públicas de prevenção dessa infecção.


Assuntos
Toxoplasmose , Depressão , Memória de Curto Prazo
5.
Sci Rep ; 13(1): 22426, 2023 12 16.
Artigo em Inglês | MEDLINE | ID: mdl-38104147

RESUMO

Dyskinesias are non preventable abnormal involuntary movements that represent the main challenge of the long term treatment of Parkinson's disease (PD) with the gold standard dopamine precursor levodopa. Applying machine learning techniques on the data extracted from the Parkinson's Progression Marker Initiative (PPMI, Michael J. Fox Foundation), this study was aimed to identify PD patients who are at high risk of developing dyskinesias. Data regarding clinical, behavioral and neurological features from 697 PD patients were included in our study. Our results show that the Random Forest was the classifier with the best and most consistent performance, reaching an area under the receiver operating characteristic (ROC) curve of up to 91.8% with only seven features. Information regarding the severity of the symptoms, the semantic verbal fluency, and the levodopa treatment were the most important for the prediction, and were further used to create a Decision Tree, whose rules may guide the pharmacological management of PD symptoms. Our results contribute to the identification of PD patients who are prone to develop dyskinesia, and may be considered in future clinical trials aiming at developing new therapeutic approaches for PD.


Assuntos
Discinesias , Doença de Parkinson , Humanos , Doença de Parkinson/complicações , Doença de Parkinson/tratamento farmacológico , Doença de Parkinson/diagnóstico , Levodopa/efeitos adversos , Discinesias/etiologia , Discinesias/diagnóstico , Algoritmos , Dopamina/uso terapêutico
6.
J Pediatr (Rio J) ; 99(5): 464-470, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37059119

RESUMO

OBJECTIVE: To investigate, at school age, the metabolic profile of children born preterm. METHODS: A cross-sectional study of children 5 to 8 years old, born with gestational age (GA) < 34 weeks and/or weight ≤ 1,500 grams. Clinical and anthropometric data were assessed by a single trained pediatrician. Biochemical measurements were done at the organization's Central Laboratory using standard methods. Data on health conditions, eating, and daily life habits were retrieved from medical charts and through validated questionnaires. Binary logistic and linear regression models were built to identify the association between variables, weight excess, and GA. RESULTS: Out of 60 children (53.3% female), 6.8 ± 0.7 years old, 16.6% presented excess weight, 13.3% showed increased insulin resistance markers and 36.7% had abnormal blood pressure values. Those presenting excess weight had higher waist circumferences and higher HOMA-IR than normal-weight children (OR = 1.64; CI = 1.035-2.949). Eating and daily life habits were not different among overweight and normal-weight children. The small-for-gestational-age (SGA) and appropriate-for-gestational-age (AGA, 83.3%) birth weight children did not differ regarding clinical (body weight, blood pressure) or biochemical variables (serum lipids, blood glucose, HOMA-IR). CONCLUSION: Schoolchildren born preterm, regardless of being AGA or SGA, were overweight, and presented increased abdominal adiposity, reduced insulin sensitivity, and altered lipid profile, justifying longitudinal follow-up regarding adverse metabolic outcomes in the future.


Assuntos
Resistência à Insulina , Nascimento Prematuro , Criança , Recém-Nascido , Humanos , Feminino , Lactente , Pré-Escolar , Masculino , Sobrepeso , Estudos Transversais , Insulina , Recém-Nascido Pequeno para a Idade Gestacional , Retardo do Crescimento Fetal , Peso ao Nascer
7.
Psicopedagogia ; 40(121): 38-45, jan.-abr. 2023.
Artigo em Português | LILACS-Express | LILACS, Index Psicologia - Periódicos | ID: biblio-1449000

RESUMO

De acordo com a Organização Mundial da Saúde, estima-se que 5% da população tenha Altas Habilidades, podendo esse número ser ainda maior. O presente trabalho tem como objetivo realizar uma pesquisa na área das Altas Habilidades com foco na inteligência lógico-matemática e a criatividade no Pensamento Computacional. O atendimento desse público ainda é incipiente na medida em que as políticas públicas destinadas à Educação Especial não são implementadas como deveriam ser. Dessa maneira, trata-se de uma pesquisa bibliográfica acerca dessa temática, referente ao período de 2015 a 2021. Utilizamos como metodologia a revisão da literatura, através de pesquisa realizada nas bases de dados Nuevas Ideas en Informática Educativa, Biblioteca Digital de Tese e Dissertação da Universidade Estadual do Oeste do Paraná (UNIOESTE), Research Society, na Revista de Informática da Educação, Revista Computação Aplicada e na Revista Internacional Educon. Os resultados mostraram a necessidade de pesquisa no campo das Altas Habilidades com tendência ao Pensamento Computacional, a fim de difundir o conhecimento a respeito dessa temática para que mais pessoas com esse perfil possam ser identificadas e assistidas para que suas potencialidades possam ser desenvolvidas.


According to the World Health Organization, it is estimated that 5% of the population has high skills, and this number may be even higher. The present work aims to conduct a research in the area of high skills focusing on logical-mathematical intelligence and creativity in computational thinking. The attendance of this public is still incipient to the extent that the public policies aimed at Special Education are not implemented as they should be. Thus, this is a bibliographical research on this theme, referring to the period from 2015 to 2021. We used as methodology the literature review, through research conducted in the databases Nuevas Ideas en Informática Educativa, Biblioteca Digital de Tese e Dissertação da Universidade Estadual do Oeste do Paraná (UNIOESTE) (in English - Digital Library of Thesis and Dissertation of the State University of Western Paraná - UNIOESTE), Research Society, in the Revista de Informática da Educação, Revista Computação Aplicada, and in Revista Internacional Educon. The results showed the need for research in the field of high skills with a tendency to computational thinking, in order to disseminate knowledge about this theme so that more people with this profile can be identified and assisted so that their potentialities can be developed.

8.
Braz J Microbiol ; 54(1): 279-284, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36441413

RESUMO

Viral hemorrhagic fevers caused by arenaviruses are severe zoonotic diseases. In reservoirs, the presence of antibodies may indicate viral circulation in a population of a specific region, and these data can be used as an indicator for further investigations by molecular techniques. The present study aimed to detect the presence of arenavirus antibodies in wild rodents captured from 1998 to 2008 during epidemiological surveillance activities. A retrospective analysis of 2243 wild rodent blood samples using a broad cross-reactive in-house developed enzyme-linked immunosorbent assay (ELISA) revealed a 0.44% (10/2243) positive rate in wild rodents, which included Necromys lasiurus (6/1012), Calomys callosus (2/94), and Akodon sp. (2/273) species. These rodents were captured between 2002 to 2006 in Campo Alegre de Goiás/GO, Bodoquena/MS, Nuporanga/SP, and Mogi das Cruzes/SP. Our findings suggest the sylvatic circulation of arenavirus among wild rodents in the southeast region of Brazil. However, future virological and molecular studies are necessary to confirm the viral presence in these regions.


Assuntos
Arenavirus , Animais , Roedores , Brasil/epidemiologia , Estudos Retrospectivos , Reservatórios de Doenças , Anticorpos Antivirais
9.
Int J Neurosci ; 133(12): 1319-1325, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-35603453

RESUMO

Introduction: Dopamine replacement therapy with levodopa is the gold standard treatment of Parkinson's disease (PD); however long-term levodopa use is associated with abnormal involuntary movements known as levodopa-induced dyskinesia (LID) in most patients. LID is not preventable and represents the major limitation of PD treatment.Objective: This study was aimed to find clinical and behavioral features that could be used to identify, years in advance, PD patients that are at high risk of developing LID in the future. Method: Data from PD patients enrolled in The Parkinson's progression markers initiative (PPMI, Michael J. Fox Foundation) that developed dyskinesia during their participation in the study were compared with those who did not, and with healthy controls.Result: LID was preceded byhigher levels of trait anxiety and increased motor impairment in PD patients. Additionally, younger age at PD diagnosis, earlier need for dopaminergic therapy and higher initial levodopa dose, were associated with future development of dyskinesia.Conclusion: These findings suggest that easily detectable clinical and behavioral alterations may help to identify PD patients that are more susceptible to develop LID.


Assuntos
Discinesia Induzida por Medicamentos , Transtornos Motores , Doença de Parkinson , Humanos , Levodopa/efeitos adversos , Doença de Parkinson/complicações , Doença de Parkinson/tratamento farmacológico , Antiparkinsonianos/efeitos adversos , Transtornos Motores/induzido quimicamente , Transtornos Motores/tratamento farmacológico , Discinesia Induzida por Medicamentos/etiologia , Dopamina , Ansiedade/induzido quimicamente
10.
J. pediatr. (Rio J.) ; J. pediatr. (Rio J.);99(5): 464-470, 2023. tab
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1514444

RESUMO

Abstract Objective: To investigate, at school age, the metabolic profile of children born preterm. Methods: A cross-sectional study of children 5 to 8 years old, born with gestational age (GA) < 34 weeks and/or weight ≤ 1,500 grams. Clinical and anthropometric data were assessed by a single trained pediatrician. Biochemical measurements were done at the organization's Central Laboratory using standard methods. Data on health conditions, eating, and daily life habits were retrieved from medical charts and through validated questionnaires. Binary logistic and linear regression models were built to identify the association between variables, weight excess, and GA. Results: Out of 60 children (53.3% female), 6.8 ± 0.7 years old, 16.6% presented excess weight, 13.3% showed increased insulin resistance markers and 36.7% had abnormal blood pressure values. Those presenting excess weight had higher waist circumferences and higher HOMA-IR than normal-weight children (OR = 1.64; CI = 1.035-2.949). Eating and daily life habits were not different among overweight and normal-weight children. The small-for-gestational-age (SGA) and appropriate-for-gestational-age (AGA, 83.3%) birth weight children did not differ regarding clinical (body weight, blood pressure) or biochemical variables (serum lipids, blood glucose, HOMA-IR). Conclusion: Schoolchildren born preterm, regardless of being AGA or SGA, were overweight, and presented increased abdominal adiposity, reduced insulin sensitivity, and altered lipid profile, justifying longitudinal follow-up regarding adverse metabolic outcomes in the future.

11.
PLoS One ; 17(12): e0279298, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36538565

RESUMO

Glucocorticoids (GC) replacement are the mainstay treatment for 21-hydroxylase deficiency (21-OHD), the most common cause of congenital adrenal hyperplasia (CAH), in its classical form. There are novel insights into the genetic basis of the GC action diversity that point to an important role for GC receptor (GR) gene polymorphisms, suggesting a possible modulation in occurrence of metabolic disorders, what may be relevant to clinical management of 21-OHD. The aim of this study was to investigate whether the five GR gene polymorphisms Tth111I, ER22, 23EK, BclI, 9ß (rs10052957, rs6189, rs6190, rs41423247, rs6198) and their combination into haplotypes are associated to different GC response in a cohort of classic 21-OHD subjects. GR genotype-phenotype associations were explored after a dexamethasone suppression test using very low-doses (VLD-DST), 20 and 40 µg/m². The final sample (n = 28) was selected based on the 102 individuals' previous genotypes classification, according to literature data of GC sensitivity or resistance. Thus, only patients with GC increased resistance (n = 18) or increased sensitivity (n = 10) profiles were selected. Out of 28 subjects aged 12 (2-34) years enrolled in this study, 75% were females, 75% presented the salt-wasting form (SW) and 25% the simple virilizing form (SV). Subjects who carried Tth111I and 9ß, associated or not to the ER22/23EK variants, showed an impaired DST response. Results did not differ significantly according to gender or body mass index. SV subjects with GC hypersensitivity-genotypes showed decreased average cortisol levels compared to those with GC resistance-genotypes (p = 0.0023). The Tth111I + 9ß/ Wild or Tth111I + ER22/23EK + 9ß/ Wild genotypes were associated to GC resistance in this population. This finding may be relevant given the challenges posed by therapeutic management with GC in CAH.


Assuntos
Hiperplasia Suprarrenal Congênita , Glucocorticoides , Feminino , Masculino , Humanos , Glucocorticoides/uso terapêutico , Hiperplasia Suprarrenal Congênita/tratamento farmacológico , Hiperplasia Suprarrenal Congênita/genética , Farmacogenética , Polimorfismo Genético , Receptores de Glucocorticoides/genética
12.
Braz. j. otorhinolaryngol. (Impr.) ; Braz. j. otorhinolaryngol. (Impr.);88(supl.3): 171-176, Nov.-Dec. 2022. tab
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1420842

RESUMO

Abstract Objective: To investigate the impact of certain clinical parameters on likelihood of hearing recovery after SSNHL and to detect potential variables that predict its outcome. Methods: A retrospective study was conducted in order to identify the clinical parameters which influence hearing recovery after SSNHL. Medical charts of 87 patients diagnosed with SSNHL and treated in the clinic from January 2015 to December 2019 were retrospectively reviewed. The effects of several parameters on the success of the treatment were statistically evaluated. Such parameters studied were age, gender, the severity of hearing loss, audiometric curve pattern, the time treatment was initiated, and metabolic factors. Results: Patient categorization according to tonal audiometric curve results statistically differed in terms of recovery (complete, partial, no recovery) (x2 = 32.5; p< 0.001). There are 2× more diabetic patients in the group no recovery than in the group partial recovery (OR = 3.1; 95% CI 0.95-10; p = 0.061), and 5.3× more than in the group complete recovery (OR = 10.4; 95% CI 2.3-45; p = 0.002) (χ2 = 11.2; p = 0.004). There is a statistically significant correlation between onset of therapy and recovery on a scale of significance of 93% (χ2 = 5.3, p= 0.069). Conclusion: In our study tonal audiometry results, diabetes mellitus and onset of therapy were shown to be a statistically significant negative predictive factors for recovery. Results of pure tone audiometry suggest a flat profound curve is statistically associated with the no recovery rates, and a down sloping curve proved to be statistically associated with complete recovery rates. Level of evidence: Level 1.

13.
PLoS One ; 17(11): e0277661, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36383554

RESUMO

INTRODUCTION: Mental and behavioral disorders constitute a serious public health problem and require adequate access among women and men for promotion, prevention and treatment of mental illness. METHODS AND ANALYSIS: For the writing of this protocol we will use the guidelines of the PRISMA-P Checklist (Main Items for Reporting Systematic Reviews and Meta-analyzes). This protocol was registered under the number: CRD42021243263. To this end, research will be conducted in the PubMed, Web of Science, Scopus, CINAHL and ScienceDirect databases in search of cross-sectional studies that assess the prevalence of access to mental health services among women and men. All cross-sectional studies that examined the prevalence of mental health services accessibility among women and men will be included. The search will be conducted by two independent researchers who will identify the articles; they will exclude duplicate studies. Through a blinded assessment, they will select articles using the Rayyan QCRI application. The methodological quality of the included studies will be assessed by the Joanna Briggs Institute Checklist for Analytical Cross-Sectional Studies. Meta-analyses will be performed according to the conditions of the included data. ETHICS AND DISCLOSURE: For the development of this study, there is no need for ethical review, as this is a systematic review that will use secondary studies. The conclusions of this study will be disseminated through peer-reviewed publications, conference presentations and condensed abstracts to key stakeholders and partners in the field. The database search is scheduled to start on May 10th, 2021. The entire review process is expected to be completed by August 30th, 2021.


Assuntos
Serviços de Saúde Mental , Masculino , Humanos , Feminino , Estudos Transversais , Revisões Sistemáticas como Assunto , Metanálise como Assunto , Acessibilidade aos Serviços de Saúde , Projetos de Pesquisa
14.
Front Pediatr ; 10: 875232, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35799701

RESUMO

Helicobacter pylori (H. pylori) infection leads to a systemic low-grade inflammatory state and has been associated causally with a diverse spectrum of extra-gastric disorders. Among them, the infection has been involved in the pathogenesis of autoimmune thyroid disease (ATD), but only one study had evaluated children. Therefore, a cross-sectional study was conducted in a cohort of 142 children and adolescents, randomly assessed among those followed up for thyroid diseases in a university pediatric endocrinology service: 106 with congenital hypothyroidism (CH) and 36 with ATD. All children were asymptomatic, under strict control on levothyroxine replacement, and reported no other diseases or use of drugs. Helicobacter pylori status was evaluated by the 13C-Urea Breath Test (13C-UBT). Antithyroid antibodies (ATPO, antiTg, and TRAb) and serum thyroid hormones (TSH, free T4, and T3) were assessed by standard assays. Data were analyzed in logistic models by the SPSS statistical software package, and a p-value ≤ 0.05 was considered statistically significant. The prevalence of H. pylori infection was 19.44% in children with ATD. Neither the gender nor the serum levels of thyroid hormones and antithyroid antibodies were associated with the H. pylori-positive status. Thirty-seven (34.90%) children with CH were infected with H. pylori. The mean T3 serum level (3.59 ± 0.84) was significantly lower (p = 0.001) in the infected children than in those free from the infection (3.95 ± 0.89), association that remained after adjustment for the other variables in the multivariate analysis. Because no difference was observed in the levels of TSH and T4, the results indicate that the infection may lead to impairment in the thyroid hormonal balance, but not in the hypothalamic-pituitary-thyroid axis function. In as much as H. pylori infection is highly widespread and the prevalence of CH is also not negligible, additional studies are required to confirm our results and to identify the involved mechanisms.

15.
J Psychopharmacol ; 36(7): 836-848, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35723216

RESUMO

BACKGROUND: Depression is a psychiatric disorder with limited therapy options. Psychedelics are new antidepressant candidates, being the ayahuasca one of the most promising ones. A synergistic combination of N,N-dimethyltryptamine (DMT) and ß-carbolines allows ayahuasca antidepressant properties. Another psychedelic and DMT-containing beverage is the jurema wine used religiously by indigenous people from Northeastern Brazil. AIMS: To evaluate the antidepressant-like effect of standardized extract of Mimosa tenuiflora (SEMT), associated or not with harmine (ß-carboline), in behavioral models of depression. METHODS: The SEMT was submitted to (+) ESI-IT-LC/MS analysis for DMT quantification. To assess the antidepressant-like effect of SEMT, the open field (OFT), tail suspension (TST), and forced swim (FST) tests were performed. To verify the participation of serotonergic systems, the 5-hydroxytryptophan (5-HTP)-induced head twitch test was performed. RESULTS: The content of DMT found in SEMT was 24.74 ± 0.8 mg/g. Yuremamine was also identified. SEMT presented an antidepressant-like effect in mice submitted to the TST and FST, independent from harmine, with no significant alterations on the OFT. The sub-dose interaction between SEMT and ketamine also produced an anti-immobility effect in the TST, with no changes in the OFT. SEMT potentiated the head twitch behavior induced by 5-HTP and ketanserin prevented its antidepressant-like effect in the TST (p < 0.05). CONCLUSIONS: SEMT presented a harmine-independent antidepressant-like effect in mice submitted to the TST and FST. This effect occurs possibly via activation of serotonergic systems, particularly the 5-HT2A/2C receptors.


Assuntos
Mimosa , Serotonina , 5-Hidroxitriptofano/farmacologia , Animais , Antidepressivos/farmacologia , Antidepressivos/uso terapêutico , Carbolinas , Depressão/tratamento farmacológico , Depressão/psicologia , Harmina , Humanos , Camundongos , Natação
16.
J Cent Nerv Syst Dis ; 14: 11795735221106887, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35769949

RESUMO

Background: Transcranial direct current stimulation (tDCS) is one of the most studied non-invasive neuromodulation techniques, presenting itself as a promising technique for several pathologies, such as cognitive decline. Objectives: The aim of this study was to conduct a systematic review of the effects of tDCS on the memory of elderly people with mild cognitive impairment or Alzheimer's disease, in order to describe the main protocols used, and to investigate the therapeutic effectiveness of this technique. Data Sources and Methods: 869 studies reporting controlled clinical trials were found in the databases PubMed, Web of Science, Lilacs, PsycArticles and Scielo, from which 13 met the expected requirements and were included in the final analysis. Results: There was a great variability in the stimulation protocols used in the studies; and methodological weaknesses were observed, such as absence of sample size calculation, and of information on effect sizes. Positive effects of tDCS were observed only in five studies, and the combination of stimulation and cognitive training did not seem to potentiate the effects of tDCS. Conclusion: Although tDCS can be considered a technique with important therapeutic potential, more studies are needed to understand the acute effects of tDCS on memory of elderly people and the durability of these effects over time. Registration: PROSPERO (CRD-42020200573).

17.
Front Pharmacol ; 13: 1098374, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36686704

RESUMO

Introduction: Oral cancer refers to malignant tumors, of which 90% are squamous cell carcinomas (OSCCs). These malignancies exhibit rapid progression, poor prognosis, and often mutilating therapeutical approaches. The determination of a prophylactic and/or therapeutic antitumor role of the polyphenolic extract Polypodium leucotomos(PL) would be relevant in developing new tools for prevention and treatment. Methods: We aimed to determine the antitumor effect of PL by treating OSCC cell lines with PL metabolites and evaluating its action during OSCC progression in vivo. Results: PL treatment successfully impaired cell cycling and proliferation, migration, and invasion, enhanced apoptosis, and modulated macrophage polarization associated with the tumoral immune-inflammatory response of tongue cancer cell lines (TSCC). PL treatment significantly decreased the expression of MMP1 (p < 0.01) and MMP2 (p < 0.001), and increased the expression of TIMP1 (p < 0.001) and TIMP2 (p < 0.0001) in these cells. The mesenchymal-epithelial transition phenotype was promoted in cells treated with PL, through upregulation of E-CAD (p < 0.001) and reduction of N-CAD (p < 0.05). PL restrained OSCC progression in vivo by inhibiting tumor volume growth and decreasing the number of severe dysplasia lesions and squamous cell carcinomas. Ki-67 was significantly higher expressed in tongue tissues of animals not treated with PL(p < 0.05), and a notable reduction in Bcl2 (p < 0.05) and Pcna (p < 0.05) cell proliferation-associated genes was found in dysplastic lesions and TSCCs of PL-treated mice. Finally, N-cad(Cdh2), Vim, and Twist were significantly reduced in tongue tissues treated with PL. Conclusion: PL significantly decreased OSCC carcinogenic processes in vitro and inhibited tumor progression in vivo. PL also appears to contribute to the modulation of immune-inflammatory oral tumor-associated responses. Taken together, these results suggest that PL plays an important antitumor role in processes associated with oral carcinogenesis and may be a potential phytotherapeutic target for the prevention and/or adjuvant treatment of TSCCs.

18.
Rev. méd. Minas Gerais ; 32: 32209, 2022.
Artigo em Inglês, Português | LILACS | ID: biblio-1418948

RESUMO

Objetivo: Descrever o diagnóstico e manejo clínico da deficiência da 21-hidroxilase (D-21OH), no contexto atual de inclusão da doença nos programas de triagem neonatal, bem como características genéticas, fisiopatológicas e manifestações na infância e adolescência. Fonte de Dados: Revisão integrativa realizada nas bases de dados MEDLINE (PubMed), LILACS (BVS), Scopus, Web of Science nos últimos vinte anos, em língua inglesa e portuguesa; população-alvo: crianças da primeira infância à adolescência; com o uso dos termos "triagem neonatal", "hiperplasia adrenal congênita", "deficiência da 21-hidroxilase", "glucocorticoide" e "polimorfismos do gene NR3C1". Síntese de Dados: A hiperplasia adrenal congênita (HAC) constitui um grupo de doenças caracterizadas por deficiências enzimáticas na esteroidogênese do córtex adrenal. A D-21OH é responsável por 95% dos casos e, se não tratada precocemente, pode levar ao óbito no período neonatal em sua forma clássica. A triagem neonatal para a HAC consiste na dosagem do precursor 17-hidroxiprogesterona (17OHP) no sangue de recém-nascidos, permitindo rápida confirmação diagnóstica e instituição da terapêutica. A implantação da triagem neonatal constitui um avanço, mas o controle dos pacientes pediátricos com D-21OH é complexo e deve ser sempre individualizado. Conclusão: A instituição dos programas de triagem neonatal para HAC tem trazido benefícios para o prognóstico das crianças com D-21OH. Seu manejo é multiprofissional, individualizado e ainda um desafio mesmo para o especialista. Ampla divulgação do conhecimento sobre a doença é desejável para permitir melhor condução dessas crianças, especialmente de meninas com a doença que apresentam genitália atípica.


Objective: To describe the diagnosis and clinical management of 21-hydroxylase deficiency (21OH-D), in the current context of including the disease in neonatal screening programs, as well as genetic, pathophysiological characteristics, and manifestations in childhood and adolescence. Data Source: Integrative review performed in MEDLINE (PubMed), LILACS (BVS), Scopus, Web of Science databases in the last twenty years, in English and Portuguese; target population: children from early childhood to adolescence; with the use of the terms "neonatal screening"; "congenital adrenal hyperplasia"; "21-hydroxylase deficiency"; "glucocorticoid"; "polymorphisms of the NR3C1 gene". Data Synthesis: Congenital adrenal hyperplasia (CAH) is a group of diseases characterized by enzyme deficiencies in adrenal cortex steroidogenesis. 21OH-D is responsible for 95% of cases and, if not treated early, can lead to death in the neonatal period in its classic form. Neonatal screening for CAH consists of measuring the precursor 17-hydroxyprogesterone (17OHP) in the blood of newborns, allowing rapid diagnostic confirmation and institution of therapy. The implementation of neonatal screening is an advance, but the control of pediatric patients with 21OH-D is complex and must always be individualized. Conclusion: The institution of newborn screening programs for CAH has benefits for the prognosis of children with 21OH-D. Its management is multi-professional, individualized and still a challenge even for the specialist. Wide dissemination of knowledge about the disease is desirable to allow better management of these children, especially girls with the disease who have atypical genitalia.


Assuntos
Humanos , Masculino , Feminino , Criança , Adolescente , Esteroide 21-Hidroxilase/metabolismo , Hiperplasia Suprarrenal Congênita/terapia , Polimorfismo Genético/genética , Triagem Neonatal , Hiperplasia Suprarrenal Congênita/diagnóstico , 17-alfa-Hidroxiprogesterona/metabolismo
19.
Saudi J Biol Sci ; 28(12): 6815-6817, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34866981

RESUMO

Blackberry (Rubus spp.) is a shrub plant of the Rosaceae, which fruits are used for fresh markets or processing. Blackberry cultivation has increased in Brazil and has turned into an alternative for family farmers. Among the significant diseases that can occur in plantations, there is rust, caused by phytopathogenic fungus species: Gymnoconia nitens (orange rust), Kuehneola uredinis (cane and leaf rust) and Phragmidium violaceum (blackberry rust). This research project was conducted to identify the fungi specie causative of rust occurred on experimental blackberry fields, in Diamantina, state of Minas Gerais, Brazil. Infected blackberry leaves with symptoms of rust fungi and full spores yellow were collected. Infection was limited to undersurfaces of the leaves and reddening occurred on corresponding upper areas. No stem or fruit infection occurred on the infected plants. Morphological analyzes of the microstructures (sorus and spores) were carried out under optical microscopy and scanning electron microscopy (SEM). It was observed uredinia with urediniospores uniformly echinulate golden-yellow and telia obtain with teliospores smooth hyaline, mostly four celled and with a short rounded apical papilla. The rust was identified as Kuehneola uredinis (Link) Arthur. This is the first record for Brazil. Morphological descriptions, illustrations of the microstructures, examined material, geographic distribution and taxonomic comments are provided for this species.

20.
Mol Cell Endocrinol ; 536: 111399, 2021 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-34298075

RESUMO

BACKGROUND: Lifelong glucocorticoid (GC) replacement is the mainstay treatment of congenital adrenal hyperplasia (CAH) due to classic 21-hydroxylase deficiency (21-OHD). Challenges posed by therapeutic management of these patients are well known, but novel insights into the variability in clinical response to GC highlight a role for single nucleotide polymorphisms (SNPs) of the glucocorticoid receptor gene (NR3C1). AIM: To assess whether six commonly studied NR3C1 SNPs, which were previously associated with modified response to GC, are associated with CAH. We further assessed the linkage disequilibrium (LD) among these NR3C1 SNPs and their combination into haplotypes. METHODS: Genotypes were determined by Taqman allele discrimination assays for Tth111I (rs10052957), ER22 (rs6189), 23 EK (rs6190), N363S (rs56149945), BclI (rs41423247) and 9ß (rs6198) in a Brazilian cohort of 102 unrelated 21-OHD patients and 163 unrelated healthy subjects (controls). Haplotypes were estimated using Haplo.stats, and LD among SNPs using Haploview. RESULTS: Heterozygous subjects for Tth111I were more frequent in 21-OHD patients (P = 0.004), while heterozygous for BclI were more frequent in controls (P = 0.049). We found a strong LD among the six NR3C1 SNPs, and four out of six common haplotypes contained the Tth111I-variant. Although we found no significant differences in overall haplotype analysis, the BclI-haplotype was less frequent among 21-OHD patients (P = 0.0180). CONCLUSIONS: BclI-haplotype was less common and heterozygous for Tth111I were more frequent in 21-OHD patients, while heterozygous for BclI were more frequent in controls. Our novel findings may contribute to further clinical studies on the prognostic value of NR3C1 haplotypes towards individualized treatment for 21-OHD patients.


Assuntos
Hiperplasia Suprarrenal Congênita/genética , Polimorfismo de Nucleotídeo Único , Receptores de Glucocorticoides/genética , Adolescente , Brasil , Estudos de Casos e Controles , Criança , Pré-Escolar , Feminino , Frequência do Gene , Haplótipos , Humanos , Desequilíbrio de Ligação , Masculino
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