Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 222
Filtrar
1.
Food Chem ; 460(Pt 2): 140332, 2024 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-39106805

RESUMEN

In this study, the effect of in vitro gastrointestinal digestion of phenolic compounds, the total phenolic content, and the antioxidant potential of stingless bee honey were investigated. Among the 33 phenolic compounds investigated, 25 were quantified, and only eight were not bioaccessible (p-aminobenzoic acid, sinapic acid, pinobanksin, isorhamnetin, quercetin-3-glucoside, syringaldehyde, coumarin, and coniferaldehyde). Benzoic acid was predominant in most undigested samples (21.3 to 2414 µg 100 g-1), but its bioaccessibility varied widely (2.5 to 534%). Rutin, a glycosylated flavonoid, was quantified in all samples and might have been deglycosylated during digestion, increasing the bioaccessibility of quercetin in a few samples. Overall, the concentration of phenolic compounds prior digestion and their bioaccessibility varied greatly among samples. Nevertheless, higher concentrations before digestion were not correlated to greater bioaccessibility. This study is the first to assess the in vitro bioaccessibility of phenolic compounds in SBH, providing novel insights into SBH research.


Asunto(s)
Digestión , Miel , Fenoles , Miel/análisis , Abejas/metabolismo , Abejas/química , Fenoles/metabolismo , Fenoles/química , Animales , Brasil , Antioxidantes/química , Antioxidantes/metabolismo , Modelos Biológicos , Humanos
2.
J Clin Pharmacol ; 2024 Aug 05.
Artículo en Inglés | MEDLINE | ID: mdl-39101567

RESUMEN

Roux-en-Y gastric bypass (RYGB) involves creating a small stomach pouch, bypassing part of the small intestine, and rerouting the digestive tract. These alterations can potentially change the drug exposure and response. Our primary aim was to assess the impact of RYGB on the pharmacokinetics of simvastatin lactone (SV) and its active metabolite, simvastatin hydroxy acid (SVA). Ultimately, we aimed to optimize dosing for this understudied population by employing a population pharmacokinetic-pharmacodynamic link approach. The study comprised patients who had undergone RYGB surgery and individuals without a previous history of RYGB. All participants received a single oral dose of simvastatin. Plasma concentration data were analyzed with a nonlinear mixed-effect modeling approach. A parent-metabolite model with first-order absorption, 2-compartments for SV and 1-compartment for SVA, linear elimination, and enterohepatic circulation best described the data. The model was linked to the turnover pharmacodynamic model to describe the SVA inhibition on LDL-cholesterol production. Our simulations indicated that following RYGB surgery, the exposure to SV and SVA decreased by 40%. Consequently, for low-intensity statin patients, we recommend increasing the dose from 10 to 20 mg in post-RYGB patients to maintain a comparable response to that of non-operated subjects. Moderate-intensity statin patients should require increasing doses to 40 or 60 mg or the addition of a non-statin medication to achieve similar therapeutic outcomes. In conclusion, individuals post-RYGB exhibit diminished exposure to SV and may benefit from increasing the dose or adjunctive therapy with non-statin drugs to attain equivalent responses and mitigate potential adverse events.

3.
Plant Foods Hum Nutr ; 79(3): 677-684, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-38976202

RESUMEN

This study investigated the anti-inflammatory effect of hydrophilic and lipophilic extracts from juçara fruits (Euterpe edulis Martius) through measurement of nitric oxide (NOx) and cytokines (IL-12p70, TNF-α, INF-γ, MCP-1, IL-6, and IL-10). J774 macrophages were stimulated with lipopolysaccharides (1 µg/mL) and treated with various concentrations (1-100 µg/mL) of juçara fruits extracts from crude extracts, and hexane, dichloromethane, ethyl acetate, and butanol fractions. Potential relationships between the phenolic composition of the extracts determined by LC-ESI-MS/MS and their anti-inflammatory capacity were also evaluated. Hexane and dichloromethane fractions inhibited NOx and IL-12p70 while increased IL-10. Hexane fractions also decreased IL-6 and IFN-γ production. Hexane and dichloromethane fractions showed a higher number of phenolic compounds (32 and 34, respectively) than the other extracts tested and were also the only ones that presented benzoic acid and pinocembrin. These results suggest juçara fruits compounds as potential anti-inflammatory agents, especially those of a more apolar nature.


Asunto(s)
Antiinflamatorios , Frutas , Lipopolisacáridos , Macrófagos , Óxido Nítrico , Extractos Vegetales , Macrófagos/efectos de los fármacos , Frutas/química , Extractos Vegetales/farmacología , Antiinflamatorios/farmacología , Óxido Nítrico/metabolismo , Ratones , Animales , Fenoles/análisis , Fenoles/farmacología , Citocinas/metabolismo , Línea Celular
4.
Arq Bras Cardiol ; 121(5): e20230733, 2024.
Artículo en Portugués, Inglés | MEDLINE | ID: mdl-39016396

RESUMEN

Although the existing framework for classifying acute myocardial infarction (AMI) into STEMI and NSTEMI has been beneficial, it is now considered to be falling short in addressing the complexity of acute coronary syndromes. The study aims to scrutinize the current STEMI-NSTEMI paradigm and advocate for a more nuanced framework, termed as occlusion myocardial infarction (OMI) and non-occlusion myocardial infarction (NOMI), for a more accurate diagnosis and management of AMI. A comprehensive analysis of existing medical literature was conducted, with a focus on the limitations of the STEMI-NSTEMI model. The study also outlines a new diagnostic approach for patients presenting with chest pain in emergency settings. The traditional STEMI-NSTEMI model falls short in diagnostic precision and effective treatment, especially in identifying acute coronary artery occlusions. The OMI-NOMI framework offers a more anatomically and physiologically accurate model, backed by a wealth of clinical research and expert opinion. It underscores the need for quick ECG assessments and immediate reperfusion therapies for suspected OMI cases, aiming to improve patient outcomes. The OMI-NOMI framework offers a new avenue for future research and clinical application. It advocates for a more comprehensive understanding of the underlying mechanisms of acute coronary syndromes, leading to individualized treatment plans. This novel approach is expected to ignite further scholarly debate and research, particularly in the Brazilian cardiology sector, with the goal of enhancing diagnostic accuracy and treatment effectiveness in AMI patients.


Embora o modelo existente de classificação do infarto agudo do miocárdio (IAM) em IAMCSST e IAMSSST tenha sido benéfico, considera-se hoje que ele falha em abordar a complexidade das síndromes coronarianas agudas. O estudo tem como objetivo examinar o atual paradigma IAMCSST-IAMSSST e defender um modelo mais detalhado, chamado de oclusão coronariana aguda (OCA) e Ausência de Oclusão Coronária Aguda (NOCA), para um diagnóstico e um manejo do IAM mais precisos. Realizou-se uma análise abrangente da literatura médica existente, com foco nas limitações do modelo IAMCSST-IAMSSST. O estudo também descreve uma nova abordagem diagnóstica para pacientes apresentando do torácica nos departamentos de emergência. O modelo IAMCSST-IAMSSST tradicional falha em prover um diagnóstico preciso e um tratamento efetivo, principalmente na identificação de oclusões da artéria coronária. O modelo OCA-NOCA é mais preciso em termos anatômicos e fisiológicos, e apoiado por pesquisa clínica extensa e opiniões de especialistas. Ele destaca a necessidade de rápida realização de eletrocardiogramas (ECGs) e terapias de reperfusão para casos suspeitos de OCA, visando melhorar os desfechos dos pacientes. O modelo OCA-NOCA abre um novo caminho para pesquisas e aplicações clínicas futuras. Ele defende um entendimento mais abrangente dos mecanismos subjacentes das síndromes coronarianas agudas, levando a planos individualizados de tratamentos. Espera-se que essa nova abordagem incite novos debates e pesquisas acadêmicas, principalmente na área de cardiologia no Brasil, com o objetivo de aumentar a precisão diagnóstica e a eficácia do tratamento de pacientes com IAM.


Asunto(s)
Electrocardiografía , Infarto del Miocardio con Elevación del ST , Humanos , Infarto del Miocardio con Elevación del ST/diagnóstico , Infarto del Miocardio con Elevación del ST/terapia , Infarto del Miocardio sin Elevación del ST/diagnóstico , Infarto del Miocardio sin Elevación del ST/terapia , Oclusión Coronaria/diagnóstico , Oclusión Coronaria/terapia , Dolor en el Pecho/etiología
5.
J Med Entomol ; 61(5): 1126-1139, 2024 Sep 10.
Artículo en Inglés | MEDLINE | ID: mdl-38902893

RESUMEN

Leishmaniasis is a zoonoses caused by protozoan parasites belonging to the Leishmania genus that is transmitted to humans through the bite of previously infected phlebotomine sandflies (Diptera:Psychodidae:Phlebotominae). In Brazil, 2 types of leishmaniasis are endemic, tegumentary leishmaniasis (TL) and visceral leishmaniasis (VL). In Baldim, a municipality in the Espinhaço Range Biospere Reserve (ERBR), 5 autochthonous cases of TL, and one autochthonous case of VL were reported from 2017 to 2022. Owing to the lack of data on entomological fauna, we surveyed the occurrence and distribution of phlebotomine sandflies that could act as Leishmania vectors, as well as natural Leishmania infection. During 1 year, 918 sandfly specimens belonging to 12 species were collected. The predominant species was Lutzomyia longipalpis (Lutz & Neiva, 1912) (32.0%), a proven VL agent, followed by Evandromyia evandroi (Costa Lima & Antunes, 1936) (20.7%), Evandromyia cortelezzii (Brèthes, 1923) (17.0%), Nyssomyia whitmani (Antunes & Coutinho, 1939) (12.2%), and Nyssomyia intermedia (Lutz & Neiva, 1912) (10.5%), all putative or proven TL agents. Seasonal fluctuations and endo-exophilic behavior were delineated for the main phlebotomine sandflies. The population of Lu. longipalpis was higher during the coolest and driest months, although different profiles were noted for the other species. Natural Leishmania infection was not detected in any of the 197 phlebotomine sandfly females analyzed. The results were compared with those previously obtained in other municipalities belonging to the ERBR. The presence of Leishmania vectors and human cases of leishmaniasis indicate a risk of Leishmania transmission in the region.


Asunto(s)
Insectos Vectores , Leishmania , Psychodidae , Brasil , Animales , Psychodidae/parasitología , Insectos Vectores/parasitología , Femenino , Leishmania/aislamiento & purificación , Masculino , Densidad de Población , Distribución Animal , Leishmaniasis/transmisión
6.
Orphanet J Rare Dis ; 19(1): 240, 2024 Jun 20.
Artículo en Inglés | MEDLINE | ID: mdl-38902749

RESUMEN

BACKGROUND: Prader-Willi syndrome (PWS) is a genetic disorder characterized by abnormalities in the 15q11-q13 region. Understanding the correlation between genotype and phenotype in PWS is crucial for improved genetic counseling and prognosis. In this study, we aimed to investigate the correlation between genotype and phenotype in 45 PWS patients who previously underwent methylation-sensitive high-resolution melting (MS-HRM) for diagnosis. RESULTS: We employed methylation-specific multiplex ligation-dependent probe amplification (MS-MLPA) and Sanger sequencing, along with collecting phenotypic data from the patients for comparison. Among the 45 patients, 29 (64%) exhibited a deletion of 15q11-q13, while the remaining 16 (36%) had uniparental disomy. No statistically significant differences were found in the main signs and symptoms of PWS. However, three clinical features showed significant differences between the groups. Deletion patients had a higher prevalence of myopia than those with uniparental disomy, as well as obstructive sleep apnea and an unusual skill with puzzles. CONCLUSIONS: The diagnostic tests (MS-HRM, MS-MLPA, and Sanger sequencing) yielded positive results, supporting their applicability in PWS diagnosis. The study's findings indicate a general similarity in the genotype-phenotype correlation across genetic subtypes of PWS.


Asunto(s)
Genotipo , Fenotipo , Síndrome de Prader-Willi , Humanos , Síndrome de Prader-Willi/genética , Femenino , Masculino , Brasil , Preescolar , Niño , Adolescente , Adulto , Disomía Uniparental/genética , Cromosomas Humanos Par 15/genética , Lactante , Adulto Joven
7.
J Sci Food Agric ; 2024 Jun 14.
Artículo en Inglés | MEDLINE | ID: mdl-38877535

RESUMEN

BACKGROUND: This study evaluated for the first time the potential of orange passion fruit as a base for alcoholic and acetic fermentations, with a view to assessing its profile of organic acids and polyphenols, in vitro digestion, and biological activities. RESULTS: In terms of aliphatic organic acids, malic acid was the majority in the wine (3.19 g L-1), while in the vinegar, it was acetic acid (46.84 g L-1). 3,4-Dihydroxybenzoic acid (3,4-DHB) was the major phenolic compound in the wine and vinegar samples (3443.93 and 2980.00 µg L-1, respectively). After the in vitro gastrointestinal simulation stage, the wine showed high bioaccessibility for the compounds sinipaldehyde (82.97%) and 2,4-dihydroxybenzoic acid (2,4-DHBA, 81.27%), while the vinegar exhibited high bioaccessibility for sinipaldehyde (89.39%). Through multivariate analysis, it was observed that 3,4-DHB was highly concentrated in the different digested fractions obtained from the wine. In contrast, in the vinegar, the stability of isorahmenetin and Quercetin 3-o-rhamnoside was observed during the in vitro digestion simulation. Lastly, the vinegar stood out for its inhibition rates of α-amylase (23.93%), α-glucoside (18.34%), and angiotensin-converting enzyme (10.92%). In addition, the vinegar had an inhibitory effect on the pathogenic microorganisms Salmonella enteritidis, Escherichia coli, and Listeria monocytogenes. CONCLUSION: Orange passion fruit has proved to be a promising raw material for the development of fermented beverages. Therefore, this study provides an unprecedented perspective on the use and valorization of orange passion fruit, contributing significantly to the advancement of knowledge about fermented products and the associated nutritional and functional possibilities. © 2024 Society of Chemical Industry.

8.
Eur J Pediatr ; 183(8): 3327-3336, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38730194

RESUMEN

To evaluate the influence of early nutritional intake on the growth pattern of very preterm infants. This was an observational study including 109 newborns (< 32 weeks gestational age). Perinatal morbidities, nutritional therapy (first four weeks of life), and weight, length, and head circumference (HC) growth at term-equivalent age were evaluated. Growth restriction was defined as a difference > 1.2 SD between the birth and term age measurements. Growth restriction at term-equivalent age: 52.3% (weight), 42.9% (length), and 22% (HC). Morbidities were positively correlated with nutrition therapy and negatively correlated with the total energy provision: protein ratio. The duration of parenteral nutrition, the time to reach full enteral feedings, and the total energy provision: protein ratio were significantly correlated. Nutrient intake influenced weight, length, and HC growth, and cumulative energy deficit was significantly associated with HC growth restriction.   Conclusion: Perinatal morbidities interfere with nutritional therapy and early nutrient intake, leading to insufficient energy and energy provision: protein ratio for growth. What is Known: • The intake of macronutrients early in life, mainly protein, is important for the optimal growth of pretem infants. • The severity of morbidities and low gestational ages impact the nutritional management of preterm infants. What is New: • The number of morbidities, reflecting the severity of the neonatal clinical course, had a detrimental effect on the nutritional therapy and nutrients intake. • The inadequate energy provision per gram of protein ratio was significantly associated with growth restriction in all growth measures at the second week of life, persisting for head circumference up to the fourth week, highlighting the importance of its measurement, as it could be a precocious sign of development risk.


Asunto(s)
Proteínas en la Dieta , Ingestión de Energía , Humanos , Recién Nacido , Femenino , Masculino , Proteínas en la Dieta/administración & dosificación , Nutrición Parenteral/métodos , Fenómenos Fisiológicos Nutricionales del Lactante , Recien Nacido Prematuro/crecimiento & desarrollo , Edad Gestacional , Enfermedades del Prematuro/etiología
9.
Plant Foods Hum Nutr ; 79(1): 166-172, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38252363

RESUMEN

Ripening and growing location are important factors that can impact fruit quality characteristics. In this study, the influence of these factors on physicochemical characteristics, carbohydrates, aliphatic organic acids, phenolic compounds, and antioxidant capacity of red guava (Psidium cattleianum Sabine) was evaluated. Fruit ripening increased fructose and glucose (up to 22.83 and 16.42 g 100 g- 1 dry matter (DM), respectively), and decreased citric acid, the major organic acid (up to 135.35 mg g- 1 DM). Ripening and growing location also influenced the concentration of phenolic compounds and antioxidant capacity of red guava, in which a dependency between both factors was observed in most cases. Apigenin, galangin, isoquercitrin, among other phenolic compounds were quantified for the first time in red guava, in which isoquercitrin was the major (up to 13409.81 mg kg- 1 DM). The antioxidant potential of red guava was also confirmed by ferric reducing antioxidant power assay (up to 82.63 µmol Fe+ 2 g- 1 DM), Folin-Ciocalteu reducing capacity assay (up to 17.79 mg gallic acid equivalent g- 1 DM), and DPPH free radical scavenging assay (up to 25.36 mg ascorbic acid equivalent g- 1 DM). These results especially demonstrated the bioactive potential of red guava and provided knowledge regarding the influence of ripening and growing location on chemical and bioactive components encouraging its industrial exploitation.


Asunto(s)
Antioxidantes , Psidium , Antioxidantes/farmacología , Brasil , Ácido Ascórbico , Ácido Gálico , Ácidos Grasos , Frutas
10.
Food Res Int ; 176: 113682, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-38163738

RESUMEN

The free acidity of bracatinga honeydew honey (BHH) was monthly monitored over short-term storage (four months) until all the samples exceeded 50 mEq kg-1 - the maximum value allowed by the international regulatory honey standards. In addition, BHH quality was also investigated through moisture content, water activity, electrical conductivity, pH, 5-hydroxymethylfurfural, and aliphatic organic acids (AOA) analyses. According to our results, most of the parameters investigated presented significant differences during the short storage period studied; however, the quality parameters (except acidity) did not exceed the limits established by the international regulatory honey standards. Therefore, the high free acidity observed in the BHH samples did not affect its quality. Moreover, the total AOA concentration decreased as the free acidity increased, indicating that the high acidity is not related to postharvest fermentation. Since all BHH samples exceeded the established limit of 50 mEq kg-1 after four months of storage (up to 62.7 mEq kg-1), this data corroborates that this type of honey does not comply with the regulatory honey standards, which represents an obstacle to its commercialization. Therefore, our data reinforce the need for a future reassessment of the international regulatory honey standards regarding the free acidity limit for BHH. In this sense, taking together all the studies developed by our research group since 2014, a new free acidity value of 65 mEq kg-1 is proposed, which may discourage fraud practices and negative impacts on the BHH beekeeping chain.


Asunto(s)
Miel , Miel/análisis , Ácidos/análisis , Ácidos Grasos , Conductividad Eléctrica , Agua/análisis
11.
Arq. bras. cardiol ; 121(5): e20230733, 2024. graf
Artículo en Portugués | LILACS-Express | LILACS, SESSP-IDPCPROD, Sec. Est. Saúde SP | ID: biblio-1563909

RESUMEN

Resumo Embora o modelo existente de classificação do infarto agudo do miocárdio (IAM) em IAMCSST e IAMSSST tenha sido benéfico, considera-se hoje que ele falha em abordar a complexidade das síndromes coronarianas agudas. O estudo tem como objetivo examinar o atual paradigma IAMCSST-IAMSSST e defender um modelo mais detalhado, chamado de oclusão coronariana aguda (OCA) e Ausência de Oclusão Coronária Aguda (NOCA), para um diagnóstico e um manejo do IAM mais precisos. Realizou-se uma análise abrangente da literatura médica existente, com foco nas limitações do modelo IAMCSST-IAMSSST. O estudo também descreve uma nova abordagem diagnóstica para pacientes apresentando do torácica nos departamentos de emergência. O modelo IAMCSST-IAMSSST tradicional falha em prover um diagnóstico preciso e um tratamento efetivo, principalmente na identificação de oclusões da artéria coronária. O modelo OCA-NOCA é mais preciso em termos anatômicos e fisiológicos, e apoiado por pesquisa clínica extensa e opiniões de especialistas. Ele destaca a necessidade de rápida realização de eletrocardiogramas (ECGs) e terapias de reperfusão para casos suspeitos de OCA, visando melhorar os desfechos dos pacientes. O modelo OCA-NOCA abre um novo caminho para pesquisas e aplicações clínicas futuras. Ele defende um entendimento mais abrangente dos mecanismos subjacentes das síndromes coronarianas agudas, levando a planos individualizados de tratamentos. Espera-se que essa nova abordagem incite novos debates e pesquisas acadêmicas, principalmente na área de cardiologia no Brasil, com o objetivo de aumentar a precisão diagnóstica e a eficácia do tratamento de pacientes com IAM.


Abstract Although the existing framework for classifying acute myocardial infarction (AMI) into STEMI and NSTEMI has been beneficial, it is now considered to be falling short in addressing the complexity of acute coronary syndromes. The study aims to scrutinize the current STEMI-NSTEMI paradigm and advocate for a more nuanced framework, termed as occlusion myocardial infarction (OMI) and non-occlusion myocardial infarction (NOMI), for a more accurate diagnosis and management of AMI. A comprehensive analysis of existing medical literature was conducted, with a focus on the limitations of the STEMI-NSTEMI model. The study also outlines a new diagnostic approach for patients presenting with chest pain in emergency settings. The traditional STEMI-NSTEMI model falls short in diagnostic precision and effective treatment, especially in identifying acute coronary artery occlusions. The OMI-NOMI framework offers a more anatomically and physiologically accurate model, backed by a wealth of clinical research and expert opinion. It underscores the need for quick ECG assessments and immediate reperfusion therapies for suspected OMI cases, aiming to improve patient outcomes. The OMI-NOMI framework offers a new avenue for future research and clinical application. It advocates for a more comprehensive understanding of the underlying mechanisms of acute coronary syndromes, leading to individualized treatment plans. This novel approach is expected to ignite further scholarly debate and research, particularly in the Brazilian cardiology sector, with the goal of enhancing diagnostic accuracy and treatment effectiveness in AMI patients.

12.
Cad Saude Publica ; 39(11): e00247622, 2023.
Artículo en Portugués | MEDLINE | ID: mdl-38126419

RESUMEN

We aimed to identify the reports of symptoms of depression, anxiety, and stress among caregivers of children without visual impairment, with low vision, and with blindness and their relationship with the degree of social, emotional, material, and affective support. This cross-sectional and multicenter study was conducted in the municipality of Rio de Janeiro, Brazil, from 2019 to 2020. A questionnaire was applied to obtain caregivers' sociodemographic and economic data. The Medical Outcomes Study Social Support Scale (MOS-SSS) and The Depression, Anxiety, and Stress Scale (DASS-21) were used. Tests were used for multiple comparisons of these scales. The prevalence ratio of symptoms of depression, anxiety, and stress was estimated. Of all caregivers (N = 355), more than 90% were women-mothers. Caregivers of children with visual impairment show the highest proportion of no schooling, incomplete elementary education, or lower average monthly income. Most caregivers of children with blindness reported symptoms of depression, anxiety, and stress (66.7%, 73.3%, and 80%, respectively) as did those of children with low vision. The evaluation of the relationship between MOS-SSS and DASS-21 results shows greater support and lower scores of reports of depression, anxiety, and stress for caregivers of children without disabilities or with less visual impairment. For caregivers of blind children, the highest prevalence of such reports was independent of the received support. Results indicate the need for a care policy with mechanisms to protect the mental health of caregivers of visually impaired children.


O objetivo foi identificar os relatos de sintomas de depressão, ansiedade e estresse entre cuidadores de crianças sem deficiência visual, com baixa visão e com cegueira e sua relação com o grau de apoio social, emocional, material e afetivo. Estudo transversal e multicêntrico, realizado no Município do Rio de Janeiro, Brasil, entre 2019 e 2020. Aplicou-se um questionário para obter dados sociodemográficos e econômicos do cuidador. Foram utilizadas a Escala de Apoio Social (The Medical Outcomes Study Social Support Scale - MOS-SSS) e a Escala de Depressão, Ansiedade e Estresse (The Depression, Anxiety, and Stress Scale - DASS-21). Na comparação entre as escalas, foram utilizados testes para comparações múltiplas. Estimou-se a razão de prevalência de sintomas de depressão, ansiedade e estresse. Do total de cuidadores (N = 355), mais de 90% eram mulheres-mães e a maior proporção de cuidadores sem instrução ou Ensino Fundamental incompleto e com menor renda média mensal foi daqueles de crianças com deficiência visual. A maioria dos cuidadores de crianças com cegueira relatou sintomas de depressão, ansiedade e estresse (respectivamente, 66,7%, 73,3% e 80%), mesmo comportamento observado no grupo de cuidadores de crianças com baixa visão. Na avaliação da relação entre os resultados das escalas MOS-SSS e DASS-21, entre os cuidadores de crianças sem deficiência ou com menor comprometimento visual, observou-se maiores apoios e menores escores de relatos de depressão, ansiedade e estresse. Entre os cuidadores de crianças cegas, as maiores prevalências não dependeram dos apoios recebidos. Os resultados indicam a necessidade de uma política de cuidado com mecanismos de proteção à saúde mental dos cuidadores de crianças com deficiência visual.


El objetivo fue identificar los relatos de síntomas de depresión, ansiedad y estrés entre cuidadores de niños sin discapacidad visual, con baja visión y con ceguera y su relación con el grado de apoyo social, emocional, material y afectivo. Estudio transversal y multicéntrico realizado en la ciudad de Río de Janeiro, Brasil, entre el 2019 y el 2020. Se aplicó un cuestionario para obtener datos sociodemográficos y económicos del cuidador. Se utilizaron la Escala de Apoyo Social (The Medical Outcomes Study Social Support Scale - MOS-SSS) y Escala de Depresión, Ansiedad y Estrés (The Depression, Anxiety, and Stress Scale - DASS-21). Al comparar las escalas, se utilizaron pruebas para comparaciones múltiples. Se estimó la razón de prevalencia de síntomas de depresión, ansiedad y estrés. Del total de cuidadores (N = 355), más del 90% eran mujeres madres y la mayor proporción de cuidadores sin escolaridad o con primaria incompleta y con menor ingreso mensual promedio fueron los de niños con discapacidad visual. La mayoría de los cuidadores de niños con ceguera reportó síntomas de depresión, ansiedad y estrés, respectivamente, 66,7%, 73,3% y 80%, mismo comportamiento observado en el grupo de cuidadores de niños con baja visión. Al evaluar la relación entre los resultados de las escalas MOS-SSS y DASS-21, entre los cuidadores de niños sin discapacidad o con menor compromiso visual, se observó mayor apoyo y menores puntajes de relatos de depresión, ansiedad y estrés. Entre los cuidadores de niños ciegos, la mayor prevalencia de tales relatos no dependió del apoyo recibido. Los resultados indican la necesidad de una Política de Cuidado con mecanismos para proteger la salud mental de los cuidadores de niños con discapacidad visual.


Asunto(s)
Depresión , Baja Visión , Niño , Humanos , Femenino , Masculino , Estudios Transversales , Depresión/epidemiología , Depresión/psicología , Calidad de Vida/psicología , Cuidadores , Brasil/epidemiología , Ansiedad/epidemiología , Ansiedad/psicología , Ceguera , Apoyo Social , Estrés Psicológico/epidemiología , Estrés Psicológico/psicología
13.
An Acad Bras Cienc ; 95(3): e20230187, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37909570

RESUMEN

The present work aimed to characterize and compare the catalytic properties of amylases from Cunninghamella echinulata and Rhizopus microsporus. The highest production of amylase by C. echinulata, 234.94 U g-1 of dry substrate (or 23.49 U mL-1), was obtained using wheat bran as a substrate, with 50-55% initial moisture and kept at 28 °C for 48 h. The highest production of amylases by R. microsporus, 224.85 U g-1 of dry substrate (or 22.48 U mL-1), was obtained cultivating wheat bran with 65% initial moisture at 45 °C for 24 h. The optimal activity of the amylases was observed at pH 5.0 at 60 °C for C. echinulata enzymes and at pH 4.5 at 65 °C for R. microsporus. The amylases produced by C. echinulata were stable at pH 4.0-8.0, while the R. microsporus enzymes were stable at pH 4.0-10.0. The amylases produced by C. echinulata remained stable for 1 h at 50 °C and the R. microsporus amylases maintained catalytic activity for 1 h at 55 °C. The enzymatic extracts of both fungi hydrolyzed starches from different plant sources and showed potential for liquefaction of starch, however the amylolytic complex of C. echinulata exhibited greater saccharifying potential.


Asunto(s)
Amilasas , Cunninghamella , Amilasas/química , Fibras de la Dieta , Almidón , Concentración de Iones de Hidrógeno
14.
Sci Total Environ ; 905: 167254, 2023 Dec 20.
Artículo en Inglés | MEDLINE | ID: mdl-37741417

RESUMEN

Santa Catarina is the main producer state of oysters and mussels in Brazil, reaching 98 % of national production. To assure the safety of bivalve mollusks production, control programs of marine biotoxins (MBs) have been continuously performed. Herein, the co-occurrence of MBs and contaminants of emerging concern (CECs) in oyster and mussels from the main production sites of Santa Catarina was reported, covering 178 compounds. Samples of wild and non-cultivated oysters and mussels were also assessed. Chemometric tools were used to evaluate and optimize several sample preparation techniques such as solid-liquid, ultrasound assisted, and pressurized liquid extraction. The optimized protocol was based on ultrasound assisted extraction followed by liquid chromatography coupled to tandem mass spectrometry. The results showed the incidence of several CECs and MBs. In the case of MBs, all results were below the regulatory limits for both cultivated and non-cultivated samples. Wild mollusks have shown a higher number of compounds. Regarding CECs, the more frequent compounds were caffeine, diclofenac, meloxicam, and sertraline. Domoic acid and okadaic acid were the main toxins detected. The results highlighted the need of monitoring for MBs and the potential of oyster and mussels as sentinel organisms to risk analysis of CECs in coastal regions. To the best of our knowledge, this is the first method to describe a simultaneous sample preparation and analysis of CECs and MBs in bivalve mollusks, as well as the first report of meloxicam and florfenicol in mussels and oysters.


Asunto(s)
Bivalvos , Ostreidae , Animales , Toxinas Marinas/análisis , Brasil , Meloxicam , Bivalvos/química , Ácido Ocadaico/análisis , Ostreidae/química
15.
Crit Care Sci ; 35(2): 209-216, 2023.
Artículo en Inglés, Portugués | MEDLINE | ID: mdl-37712811

RESUMEN

OBJECTIVE: To evaluate the effect of colostrum therapy on days to start a suckling diet in newborns diagnosed with simple gastroschisis. METHODS: Randomized clinical trial with newborns diagnosed with simple gastroschisis at a federal hospital in Rio de Janeiro who were randomized to receive oropharyngeal administration of 0.2mL of colostrum or a "sham procedure" during the first 3 days of life. The analysis included clinical outcomes such as days without food, days with parenteral feeding, days until the start of enteral feeding, days to reach complete enteral feeding, sepsis and length of hospital stay. RESULTS: The onset of oral feeding (suction) in patients with simple gastroschisis in both groups occurred at a median of 15 days. CONCLUSION: The present study showed that there were no significant differences in the use of colostrum therapy and the number of days to the start of enteral feeding and suction diet between groups of newborns with simple gastroschisis.


Asunto(s)
Gastrosquisis , Sepsis , Embarazo , Femenino , Recién Nacido , Humanos , Gastrosquisis/terapia , Calostro , Brasil , Orofaringe
16.
J Psychiatr Res ; 164: 98-117, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-37331263

RESUMEN

The objective was to evaluate the effects of the consumption of a mix of baru almond and goat whey on memory performance and anxiety parameters related to the intestinal health of rats treated during aging. The animals were divided into three groups and treated by gavage for 10 weeks (n = 10/each group): Control (CT) - distilled water; Baru almond (BA) - 2000 mg of baru/kg of body weight; and Baru + Whey (BW) - 2000 mg of baru + 2000 mg of goat milk whey/kg of body weight. Anxiety behavior, memory, brain fatty acid profile and fecal microbiota were measured. BA and BW realized less grooming, spent more time in the central area of the open field and the open arms, and realized more head dipping in the elevated plus maze. A higher rate of exploration of the new object in the short and long-term memory was observed in BA and BW. There was an increase in the deposition of MUFAs and PUFAs and oleic acid in the brain of BA and BW. Regarding spatial memory, BA and BW performed better, with an emphasis on BW. There was a beneficial modulation of the fecal microbiota with a reduction of the pathogenic genus Clostridia_UFC-014 in BA and BW and an increase in the abundance of metabolic pathways of interest in the brain-gut axis. Thus, consumption of the mix is efficient in beneficially altering the intestinal microbiota, improving memory and anxiolytic-like behavior in rats during aging.


Asunto(s)
Ansiolíticos , Dipteryx , Microbioma Gastrointestinal , Prunus dulcis , Ratas , Animales , Suero Lácteo , Cabras , Peso Corporal
17.
Anal Bioanal Chem ; 415(20): 5023-5034, 2023 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-37349647

RESUMEN

Lipophilic marine biotoxins (LMBs) are one of the main risks associated with the consumption of mussels and oysters. Sanitary and analytical control programs are developed to detect the occurrence of these toxins in seafood before they reach toxic levels. To ensure quick results, methods must be easy and fast to perform. In this work, we demonstrated that incurred samples were a viable alternative to validation and internal quality control studies for the analysis of LMBs in bivalve mollusks. These samples were used to optimize, validate, and monitor a simple and fast ultrasound-assisted extraction (UAE) procedure. An internal quality control material containing okadaic acid (227 ± 46 µg kg-1) was produced and characterized. This material had its homogeneity and stability verified and was included as a quality control in all batches of analytical routine. Besides, a sample pooling protocol for extracts analysis was developed, based on tests for COVID-19. Up to 10 samples could be analyzed simultaneously, reducing the instrumental time of analysis by up to 80%. The UAE and sample pooling approaches were then applied to more than 450 samples, of which at least 100 were positive for the okadaic acid group of toxins.


Asunto(s)
Bivalvos , COVID-19 , Animales , Ácido Ocadaico/análisis , Cromatografía Liquida/métodos , Toxinas Marinas/análisis , Control de Calidad
18.
Rev Soc Bras Med Trop ; 56: e0434, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36820659

RESUMEN

BACKGROUND: Scorpions are a leading cause of envenomation in Brazil. The species Tityus serrulatus is associated with the most severe cases, especially in children. Despite not being endemic to the state of Santa Catarina, such occurrences have increased more than 500% in the state recently. Therefore, this study aimed to analyze the occurrence of envenomation by T. serrulatus, attended by the Center for Toxicological Information and Assistance of Santa Catarina. METHODS: This was a retrospective and descriptive study of the occurrence of T. serrulatus, identified by the agency, from 2014 to 2021 in Santa Catarina, using data obtained by the BI-DATATOX system. RESULTS: A total of 112 occurrences were classified as envenomation. Of these cases, 48.2% were recorded in the Itajaí Valley region and 33% in Greater Florianópolis. Men were involved in 59.8% of these, and the most common age group was 20-39 years (39.3%). Most envenomation occurred in urban areas (89.3%) under non-occupational circumstances (83%). Stings were more frequent on the hands (50.9%). Care was sought within 1 h after the event in 75.9% of the cases, and 94.6% were classified as mild. CONCLUSIONS: Occurrence of envenomation involving T. serrulatus in Santa Catarina increased significantly during the study period. Most cases occurred in urbanized areas, which suggests that they might have been transported from other states, and it must be considered that, in the urban environment, scorpions find a large supply of food and shelter and a reduced number of specific predators, allied to parthenogenesis.


Asunto(s)
Picaduras de Escorpión , Venenos de Escorpión , Masculino , Niño , Animales , Humanos , Adulto Joven , Adulto , Escorpiones , Brasil/epidemiología , Estudios Retrospectivos , Picaduras de Escorpión/epidemiología , Picaduras de Escorpión/complicaciones , Ambiente
19.
Bone Rep ; 18: 101649, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-36700243

RESUMEN

The canonical Wnt pathway participates in inflammatory diseases and it is involved in neuropathic pain. This study evaluated the immunoexpression of the canonical Wnt signaling pathway in the articular cartilage of the temporomandibular joint (TMJ) and along the nociceptive trigeminal pathway in arthritic rats. For this, male Wistar rats were divided into Control (C) and Arthritic (RA) groups. Arthritis induction was performed through subcutaneous injection of methylated bovine serum albumin (mBSA) and complete Freund Adjuvant (CFA)/ Incomplete Freund Adjuvant (IFA) on the first 14 days (once a week), followed by 3 weekly intra-articular injections of mBSA (10 µl/joint; left TMJ). The following parameters were evaluated: nociceptive threshold, inflammatory infiltrate, type I and III collagen birefringence, immunohistochemistry for IL-1ß, TNF-α, IL-6, Wnt10b, ß-catenin, cyclin-D1 in articular cartilage, c-Myc in synovial membrane, and immunofluorescence analysis for c-Fos, Wnt-10b and ß-catenin in the trigeminal ganglion and the trigeminal subnucleus caudalis. The RA group showed intense articular cartilage damage with proliferation of type III collagen, increased immunoexpression of proinflammatory cytokines and Wnt-10b, ß-catenin and cyclin-D1 in the articular cartilage and c-Myc in the synovial membrane. In the RA group, a reduction in the nociceptive threshold was observed, followed by a significant increase in the expression of Wnt-10b in neurons and ß-catenin in satellite cells of the trigeminal ganglion. c-Fos immunoexpression was observed in neurons, peripherally and centrally, in arthritic rats. Our data demonstrated that TMJ arthritis in rats causes articular cartilage damage and nociceptive behavior, with increased immunoexpression of canonical Wnt pathway in the articular cartilage and trigeminal ganglion.

20.
J. pediatr. (Rio J.) ; 99(1): 53-58, Jan.-Feb. 2023. tab, graf
Artículo en Inglés | LILACS-Express | LILACS | ID: biblio-1422023

RESUMEN

Abstract Objective: This study aimed to describe the effect of prophylactic phototherapy in the treatment of infants with Neonatal Hemolytic Disease. Method: A retrospective cohort study was carried out with 199 RhD-positive infants, born to RhD-negative mothers, alloimmunized for RhD antigen, between January 2009 and December 2018. Results: The incidence of exchange transfusions in the study population was 9.5%, with a mean maximum bilirubin value of 11.3 mg % (± 4.3mg %). Bilirubin's maximum peak was achieved with a mean of 119.2 life hours (± 70.6h). Conclusions: The low incidence of exchange transfusion, the extended maximum bilirubin peak for later ages, and the low mean of the maximum bilirubin values may indicate a positive effect of prophylactic phototherapy in the treatment of this disease. Further studies must be carried out to confirm these findings.

SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA