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1.
J. pediatr. (Rio J.) ; J. pediatr. (Rio J.);100(4): 360-366, July-Aug. 2024. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1564754

ABSTRACT

Abstract Objective: To estimate the prevalence of vitamin D deficiency and severe deficiency in children and adolescents, in a large Brazilian sample. Methodology: Results of 413,988 25(OH)D measurements in children and adolescents aged 0 to 18 years collected between 01/2014 and 10/2018 were obtained from the database of a Clinical Laboratory. In this population, 25 hydroxyvitamin D concentrations below 20 ng/mL are considered deficient, and below 12 ng/mL as severe deficiency. All measurements were performed by immunoassay and the results were distributed by gender, age group, seasonality, and latitude. Results: The mean of 25(OH)D levels was 29.2 ng/mL with a standard deviation of 9.2 ng/mL. Of the total samples, 0.8% had a concentration < 12 ng/mL, and 12.5% of the samples had a concentration < 20 ng/mL, with a higher prevalence in females. Children under 2 years of age had the lowest prevalence. The effects of latitude and seasonality were quite evident. In samples of female adolescents from the southern region in winter, 36% of vitamin D deficiency and 5% of severe deficiency were found. Conclusion: In this large number of measurements of 25(OH)D in children and adolescents, 12.5% had a deficiency and 0.8% had severe deficiency. A greater deficiency was observed among adolescents, especially females, which raises questions about the need for supplementation during this period of life.

2.
Rev. Bras. Neurol. (Online) ; 60(2): 5-12, abr.-jun. 2024. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1565978

ABSTRACT

Epilepsy's cyclic nature, increasingly quantified through advancements in continuous electroencephalography (cEEG), reveals robust seizure cycles including circadian, multidien, and circannual rhythms. Understanding these cycles' mechanisms and clinical implications, such as seizure forecasting and optimized treatment timing, is crucial. Despite historical observations, detailed analysis of seizure timing cycles has become feasible only recently, necessitating further research to confirm generalizability and clinical relevance. This paper reviews current literature on circadian rhythms in epilepsy, focusing on temporal seizure patterns and identifying knowledge gaps. A comprehensive review of studies, primarily using PubMed, synthesizes key findings from 20 studies on the temporal dynamics of epileptic activity. Research shows consistent circadian rhythms in seizure activity, with distinct daily peaks. Seizures often follow daily patterns, termed "seizure rush hours," with specific seizure types linked to particular times and influenced by sleep-wake cycles. These findings underscore the importance of understanding temporal patterns in epilepsy. Understanding these rhythms can enhance seizure prediction, diagnosis, and personalized treatment strategies. The significant role of biological rhythms suggests that tailored treatments based on individual circadian profiles could improve patient outcomes and quality of life. Further research is essential to elucidate the mechanisms driving these influences and validate findings across diverse cohorts.


A natureza cíclica da epilepsia, cada vez mais quantificada por meio dos avanços na eletroencefalografia contínua (cEEG), revela ciclos de crises epilépticas (CE) robustos, incluindo ritmos circadianos, multidiários e circanuais. Compreender os mecanismos e as implicações clínicas desses ciclos, como a previsão de CE e a otimização do momento do tratamento, é crucial. Apesar das observações históricas, a análise detalhada dos ciclos de tempo das CE tornou-se viável apenas recentemente, exigindo mais pesquisas para confirmar a generalização e a relevância clínica. Este artigo revisa a literatura atual sobre ritmos circadianos na epilepsia, focando nos padrões temporais das CE e identificando lacunas no conhecimento. Uma revisão abrangente dos estudos, principalmente utilizando o PubMed, sintetiza os principais achados de 20 estudos sobre a dinâmica temporal da atividade epiléptica. A pesquisa mostra ritmos circadianos consistentes na atividade das CE, com picos diários distintos. As CE frequentemente seguem padrões diários, denominados "horários de pico das convulsões" ("seizure rush hours"), com tipos específicos de CE vinculados a determinados horários e influenciados pelos ciclos sono-vigília. Esses achados destacam a importância de entender os padrões temporais na epilepsia. Compreender esses ritmos pode melhorar a previsão, o diagnóstico e as estratégias de tratamento personalizado das CE. O papel significativo dos ritmos biológicos sugere que tratamentos personalizados com base nos perfis circadianos individuais podem melhorar os resultados e a qualidade de vida dos pacientes. Mais pesquisas são essenciais para elucidar os mecanismos que impulsionam essas influências e validar os achados em diversas coortes.

3.
Nursing (Ed. bras., Impr.) ; 28(312): 9359-9365, jun.2024. tab.
Article in English, Portuguese | LILACS, BDENF - Nursing | ID: biblio-1563267

ABSTRACT

Os cuidados paliativos visam melhorar a qualidade de vida de pacientes e suas famílias que enfrentam doenças ameaçadoras, proporcionando alívio ao sofrimento físico, psicossocial e espiritual. Objetivo: Descrever o papel do enfermeiro nos cuidados paliativos, destacando a importância do conhecimento em cuidados paliativos e bioética para tomar decisões adequadas e implementar as diretrizes antecipadas de vontade dos pacientes. Método: Para realizar esta revisão, foram analisados sete artigos publicados entre 2018 e 2022. Os estudos selecionados abrangiam pesquisas qualitativas, revisões sistemáticas e guias de prática clínica. Resultados: Os resultados mostraram um aumento na produção científica sobre cuidados paliativos nos últimos anos, com a publicação de artigos em revistas de diferentes qualidades. Os estudos destacaram a importância do conhecimento em cuidados paliativos e bioética para os enfermeiros, ressaltando a necessidade de qualificação para tomar decisões adequadas e implementar as diretrizes antecipadas de vontade dos pacientes. A pesquisa também identificou os diagnósticos de enfermagem mais comuns e estabeleceu intervenções plausíveis no contexto de terminalidade. Além disso, enfatizou-se a relevância do conhecimento dos enfermeiros sobre práticas integrativas e complementares, buscando uma abordagem holística e humanizada no cuidado paliativo. Conclusão: Esta revisão destaca a importância da atuação do enfermeiro nos cuidados paliativos e ressalta a necessidade de qualificação e desenvolvimento de ações que promovam uma abordagem humanizada e melhoria na qualidade de vida dos pacientes. Apesar dos desafios identificados na prática de enfermagem nesse contexto, como a falta de preparo na graduação para lidar com o processo de morte e a necessidade de abordagens mais aprofundadas, é essencial que os enfermeiros baseiem suas condutas na humanização, bioética e respeito à dignidade humana do paciente, incluindo a intervenção nos sintomas físicos, sociais e emocionais.(AU)


Palliative care aims to improve the quality of life for patients and their families facing life-threatening illnesses, providing relief from physical, psychosocial, and spiritual suffering. Objective: To describe the nurse's role in palliative care, highlighting the importance of knowledge in palliative care and bioethics to make adopted decisions and implement advance directives of the patients' will. Method: To conduct this review, seven articles published between 2018 and 2022 were analyzed. The selected studies encompassed qualitative research, systematic reviews, and clinical practice guidelines. Results: The results showed an increase in scientific production on palliative care in recent years, with articles published in journals of varying quality. The studies emphasized the importance of knowledge in palliative care and bioethics for nurses, emphasizing the need for qualification to make appropriate decisions and implement patients' advance care directives. The research also identified the most common nursing diagnoses and established plausible interventions in the context of terminality. Additionally, the relevance of nurses' knowledge of integrative and complementary practices was emphasized, seeking a holistic and humanized approach to palliative care. Conclusion: This review highlights the importance of nurses' involvement in palliative care and underscores the need for qualification and the development of actions that promote a humanized approach and improvement in patients' quality of life. Despite the challenges identified in nursing practice in this context, such as the lack of preparation in undergraduate education to deal with the dying process and the need for more in-depth approaches, it is essential for nurses to base their conduct on humanization, bioethics, and respect for the human dignity of the patient, including intervention in physical, social, and emotional symptoms.(AU)


Los cuidados paliativos tienen como objetivo mejorar la calidad de vida de los pacientes y sus familias que enfrentan enfermedades potencialmente mortales.proporcionando alivio del sufrimiento físico, psicosocial y espiritual. Objetivo: Describir el papel de las enfermeras en cuidados paliativos, destacando la importancia del conocimiento en cuidados paliativos y bioética para tomar decisiones adecuadas e implementar directivas anticipadas de los deseos de los pacientes. Método: Para realizar esta revisión se utilizaron siete artículos publicados entre 2018 y 2022. Los estudios seleccionados cubrieron investigaciones cualitativas, revisiones sistemáticas y guías de práctica clínica. Resultados: Los resultados mostraron un aumento en la producción científica sobre cuidados paliativos en los últimos años, con la publicación de artículosen revistas de diferente calidad. Los estudios resaltaron la importancia del conocimiento en cuidados paliativos y bioética para enfermeras, destacando la necesidad de calificaciones para tomar decisiones apropiadas e implementar directivas anticipadas de los deseos de los pacientes. La investigación también identificó los diagnósticos de enfermería más comunes y las intervenciones establecidas.plausible en el contexto de la terminalidad. Además, se destacó la relevancia del conocimiento de las enfermeras sobre las prácticas.integrador y complementario, buscando un enfoque holístico y humanizado de los cuidados paliativos.(AU)


Subject(s)
Palliative Care , Nursing
4.
Arq Bras Cardiol ; 121(3): e20230487, 2024.
Article in Portuguese, English | MEDLINE | ID: mdl-38597553

ABSTRACT

BACKGROUND: Adhering to a diet adequate in macronutrients is crucial for the secondary prevention of cardiovascular diseases. OBJECTIVE: To assess the prevalence of adherence to recommendations for the consumption of dietary fatty acids for the prevention and treatment of cardiovascular diseases and to estimate whether the presence of certain cardiovascular risk factors would be associated with adherence. METHODS: Cross-sectional study using baseline data from 2,358 participants included in the "Brazilian Cardioprotective Nutritional Program Trial". Dietary intake and cardiovascular risk factors were assessed. Adequate intake of polyunsaturated fatty acids (PUFA) was considered as ≥10% of total daily energy intake; for monounsaturated fatty acids (MUFA), 20%; and for saturated fatty acids (SFA), <7% according to the Brazilian Society of Cardiology. A significance level of 5% was considered in the statistical analysis. RESULTS: No participant adhered to all recommendations simultaneously, and more than half (1,482 [62.9%]) did not adhere to any recommendation. Adherence exclusively to the SFA recommendation was the most prevalent, fulfilled by 659 (28%) participants, followed by adherence exclusively to the PUFA (178 [7.6%]) and MUFA (5 [0.2%]) recommendations. There was no association between the number of comorbidities and adherence to nutritional recommendations (p = 0.269). Participants from the Brazilian Northeast region showed a higher proportion of adherence to SFA consumption recommendations (38.42%) and lower adherence to PUFA intake (3.52%) (p <0.001) compared to other regions. CONCLUSIONS: Among the evaluated sample, there was low adherence to nutritional recommendations for dietary fatty acid consumption.


FUNDAMENTO: A adesão à uma alimentação adequada em macronutrientes é fundamental para a prevenção secundária de doenças cardiovasculares. OBJETIVO: Avaliar a prevalência de adesão às recomendações de consumo de ácidos graxos para prevenção e tratamento de doenças cardiovasculares, e estimar se a presença de determinados fatores de risco cardiovascular estaria associada à adesão. MÉTODOS: Estudo transversal com os dados de linha de base de 2358 participantes do estudo "Brazilian Cardioprotective Nutritional Program Trial". Dados de consumo alimentar, e fatores de risco cardiovascular foram avaliados. Foi considerada, de acordo com a Sociedade Brasileira de Cardiologia, uma ingestão adequada de ácidos graxos poli-insaturados (AGPI) ≥10% do consumo total de energia diária, para ácidos graxos monoinsaturados (AGM), 20% e para ácidos graxos saturados (AGS), <7%. Na análise estatística foi considerando nível de significância de 5%. RESULTADOS: Nenhum participante aderiu a todas as recomendações de forma simultânea e mais da metade (1482 [62,9%]) não aderiu a nenhuma recomendação. A adesão exclusivamente à recomendação de AGS foi a mais prevalente, sendo cumprida por 659 (28%) dos participantes, seguida da adesão exclusivamente à recomendação de AGP (178 [7,6%]) e de AGM (5 [0,2%]). Não houve associação entre o número de comorbidades e a adesão às recomendações nutricionais (p =0,269). Os participantes da região Nordeste do país apresentaram maior proporção de adesão às recomendações para consumo de AGS (38,42%), e menor para ingestão de AGPI (3,52%) (p <0,001) em comparação às demais. CONCLUSÕES: Na amostra avaliada, evidenciou-se baixa adesão às recomendações nutricionais para consumo de ácidos graxos.


Subject(s)
Cardiovascular Diseases , Fatty Acids , Humans , Dietary Fats , Cardiovascular Diseases/etiology , Secondary Prevention , Cross-Sectional Studies , Fatty Acids, Unsaturated , Fatty Acids, Monounsaturated
5.
Animals (Basel) ; 14(7)2024 Mar 27.
Article in English | MEDLINE | ID: mdl-38612255

ABSTRACT

Choline is required for the synthesis of phosphatidylcholine, an important constituent of lipoproteins. Early lactation cows presumably synthesize insufficient phosphatidylcholine, and choline supplementation in a rumen-protected form might benefit metabolism and lactation. The objectives of this study were to determine the effects of feeding rumen-protected choline (RPC) on lactation and metabolism in dairy cows. In experiment 1, 369 nulliparous and parous Holstein cows housed in four pens per treatment were fed 12.9 g/day of choline as RPC from 25 days prepartum until 80 days postpartum. In experiment 2, 578 nulliparous cows housed in five pens/treatment were fed 12.9 g/day of choline as RPC in the last 22 days of gestation only. In both experiments, blood was sampled and analyzed for concentrations of nonesterified fatty acids (NEFAs) and glucose at 1, 14, and 21 days postpartum and of choline at 1 and 14 days postpartum. Blood from all cows was sampled and analyzed for concentrations of ß-OH butyrate (BHB) at 1 and 14 days postpartum. Cows with BHB > 1.2 mmol/L were classified as having hyperketonemia. Hepatic tissue was collected from 46 cows from the eight pens in experiment 1 at 9 days postpartum and analyzed for concentrations of glycogen and triacylglycerol. Milk yield and components were measured for 80 days postpartum in experiment 1, whereas only milk yield was measured in experiment 2. The pen was the experimental unit of analysis. Supplementing RPC tended to increase dry matter intake (DMI) prepartum in experiments 1 and 2 and postpartum in experiment 1. Feeding cows with RPC increased yields of 3.5% fat-corrected milk (42.8 vs. 44.8 kg/day), energy-corrected milk (38.5 vs. 40.3 kg/day), milk fat (1.52 vs. 1.61 kg/day), and true protein (1.16 vs. 1.21 kg/day) in experiment 1. Milk yield tended to be greater with RPC (26.4 vs. 27.4 kg/day) in experiment 2. Supplementing RPC increased plasma choline concentrations on day 14 postpartum in experiment 1 (3.32 ± 0.27 vs. 4.34 ± 0.28 µM) and on day 1 in experiment 2 (3.35 ± 0.16 and 13.73 ± 0.15 µM). Treatment did not affect the concentrations of glucose, NEFAs, or BHB in plasma, but the incidence of hyperketonemia was less in multiparous cows fed RPC than those fed the control in experiment 1. Feeding cows with RPC reduced hepatic triacylglycerol content and tended to reduce the ratio of triacylglycerol to glycogen and the risk of hepatic lipidosis in cows in experiment 1. The concentrations of hepatic triacylglycerol on day 9 postpartum were inversely related to those of choline in plasma on day 1 postpartum. Feeding cows with RPC improved lactation and metabolism, but more benefits were noted when it was fed before and after calving.

6.
J Toxicol Environ Health A ; 87(12): 516-531, 2024 Jun 17.
Article in English | MEDLINE | ID: mdl-38619152

ABSTRACT

The bark extract from Endopleura uchi has been widely used in traditional medicine to treat gynecological-related disorders, diabetes, and dyslipidemias albeit without scientific proof. In addition, E. uchi bark extract safety, especially regarding mutagenic activities, is not known. The aim of this study was to determine the chemical composition, antitumor, and toxicological parameters attributed to an E. uchi bark aqueous extract. The phytochemical constitution was assessed by colorimetric and chromatographic analyzes. The antiproliferative effect was determined using sulforhodamine B (SRB) assay using 4 cancer cell lines. Cytotoxic and genotoxic activities were assessed utilizing MTT and comet assays, respectively, while mutagenicity was determined through micronucleus and Salmonella/microsome assays. The chromatographic analysis detected predominantly the presence of gallic acid and isoquercitrin. The antiproliferative effect was more pronounced in human colon adenocarcinoma (HT-29) and human breast cancer (MCF-7) cell lines. In the MTT assay, the extract presented an IC50 = 39.1 µg/ml and exhibited genotoxic (comet assay) and mutagenic (micronucleus test) activities at 20 and 40 µg/ml in mouse fibroblast cell line (L929) and mutagenicity in the TA102 and TA97a strains in the absence of S9 mix. Data demonstrated that E. uchi bark possesses bioactive compounds which exert cytotoxic and genotoxic effects that might be associated with its antitumor potential. Therefore, E. uchi bark aqueous extract consumption needs to be approached with caution in therapeutic applications.


Subject(s)
Adenocarcinoma , Antineoplastic Agents , Colonic Neoplasms , Humans , Mice , Animals , Plant Extracts/chemistry , Plant Bark/chemistry , DNA Damage , Water , Mutagens , MCF-7 Cells
7.
Rev Gaucha Enferm ; 45: e20230100, 2024.
Article in English, Portuguese | MEDLINE | ID: mdl-38655929

ABSTRACT

OBJECTIVE: To develop a health promotion action for Street Clinic workers. METHOD: Qualitative research which used the Convergent Care Research methodology. The data collection was conducted through participant observation and convergence groups, from May to October 2021, with 39 workers from six teams of the Street Clinic. Data analysis followed the stages of apprehension, synthesis, theorization, and transfer. RESULTS: Some integrativepractices such as, stretching, group dynamics, dance, music, massage and cinema were suggested as interventions to be implemented. Given the need, Reichian stretching was developed as an intervention which favored body awareness, promoting the well-being of workers. CONCLUSION: The workers presented a conception of health promotion related to access to services and guarantee of rights. Reichian stretching provided a space for care and reflection on caring and respecting limits, favoring the body awareness and promoting relaxation.


Subject(s)
Health Promotion , Qualitative Research , Humans , Health Promotion/methods , Female , Adult , Male , Occupational Health , Middle Aged , Health Personnel/psychology
8.
J Trace Elem Med Biol ; 84: 127446, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38615498

ABSTRACT

Osteoporosis is associated with an imbalance in bone formation, with certain drugs used in disease treatment being implicated in its development. Supplementation with trace elements may contribute to bone regeneration, offering an alternative approach by enhancing bone mineral density (BMD) and thereby thwarting the onset of osteoporosis. This review aims to assess the mechanisms through which trace elements such as copper (Cu), iron (Fe), selenium (Se), manganese (Mn), and zinc (Zn) are linked to increased bone mass, thus mitigating the effects of pharmaceuticals. Our findings underscore that the use of drugs such as aromatase inhibitors (AIs), proton pump inhibitors (PPIs), antiretrovirals, glucocorticoids, opioids, or anticonvulsants can result in decreased BMD, a primary contributor to osteoporosis. Research indicates that essential elements like Cu, Fe, Se, Mn, and Zn, through various mechanisms, can bolster BMD and forestall the onset of the disease, owing to their protective effects. Consequently, our study recommends a minimum daily intake of these essential minerals for patients undergoing treatment with the aforementioned drugs, as the diverse mechanisms governing the effects of trace elements Cu, Fe, Mn, Se, and Zn facilitate bone remodeling.


Subject(s)
Osteoporosis , Trace Elements , Humans , Osteoporosis/chemically induced , Osteoporosis/drug therapy , Trace Elements/pharmacology , Bone Regeneration/drug effects , Animals , Bone Density/drug effects , Bone and Bones/drug effects , Bone and Bones/metabolism
9.
J Ethnopharmacol ; 329: 118154, 2024 Jul 15.
Article in English | MEDLINE | ID: mdl-38614259

ABSTRACT

ETHNOPHARMACOLOGY RELEVANCE: The plants of Amaryllidaceae family, such as Amaryllis belladonna L., have been used as herbal remedies for thousands of years to address various disorders, including diseases that might today be identified as cancer. AIM OF THE STUDY: The objective of this work was to evaluate the potential of three Amaryllidaceae alkaloids against four cancer cell lines. MATERIAL AND METHODS: The alkaloids lycorine, 1-O-acetylcaranine, and montanine were evaluated in vitro against colon adenocarcinoma cell line (HCT-116) and breast carcinoma cell lines (MCF-7, MDAMB231, and Hs578T). Computational experiments (target prediction and molecular docking) were conducted to gain a deeper comprehension of possible interactions between these alkaloids and potential targets associated with these tumor cells. RESULTS: Montanine presented the best results against HCT-116, MDAMB231, and Hs578T cell lines, while lycorine was the most active against MCF-7. In alignment with the target prediction outcomes and existing literature, four potential targets were chosen for the molecular docking analysis: CDK8, EGFR, ER-alpha, and dCK. The docking scores revealed two potential targets for the alkaloids with scores similar to co-crystallized inhibitors and substrates: CDK8 and dCK. A visual analysis of the optimal docked configurations indicates that the alkaloids may interact with some key residues in contrast to the other docked compounds. This observation implies their potential to bind effectively to both targets. CONCLUSIONS: In vitro and in silico results corroborate with data literature suggesting the Amaryllidaceae alkaloids as interesting molecules with antitumoral properties, especially montanine, which showed the best in vitro results against colorectal and breast carcinoma. More studies are necessary to confirm the targets and pharmaceutical potential of montanine against these cancer cell lines.


Subject(s)
Amaryllidaceae Alkaloids , Antineoplastic Agents, Phytogenic , Molecular Docking Simulation , Humans , Amaryllidaceae Alkaloids/pharmacology , Amaryllidaceae Alkaloids/chemistry , Antineoplastic Agents, Phytogenic/pharmacology , Antineoplastic Agents, Phytogenic/chemistry , Cell Line, Tumor , MCF-7 Cells , Amaryllidaceae/chemistry , HCT116 Cells , Computer Simulation , Phenanthridines/pharmacology , Phenanthridines/chemistry , Isoquinolines
10.
Int J Biol Macromol ; 268(Pt 2): 131365, 2024 May.
Article in English | MEDLINE | ID: mdl-38583829

ABSTRACT

Wounds are considered one of the most critical medical conditions that must be managed appropriately due to the psychological and physical stress they cause for patients, as well as creating a substantial financial burden on patients and global healthcare systems. Nowadays, there is a growing interest in developing nanofiber mats loaded with varying plant extracts to meet the urgent need for advanced wound ressings. This study investigated the development and characterization of poly(lactic acid) (PLA)/ poly(ethylene glycol) (PEG) nanofiber membranes incorporated with Ora-pro-nóbis (OPN; 12.5, 25, and 50 % w/w) by the solution-blow-spinning (SBS) technique. The PLA/PEG and PLA/PEG/OPN nanofiber membranes were characterized by scanning electron microscopy (SEM), thermal properties (TGA and DSC), Fourier transform infrared spectroscopy (FTIR), contact angle measurements and water vapor permeability (WVTR). In addition, the mats were analyzed for swelling properties in vitro cell viability, and fibroblast adhesion (L-929) tests. SEM images showed that smooth and continuous PLA/PEG and PLA/PEG/OPN nanofibers were obtained with a diameter distribution ranging from 171 to 1533 nm. The PLA/PEG and PLA/PEG/OPN nanofiber membranes showed moderate hydrophobicity (~109-120°), possibly preventing secondary injuries during dressing removal. Besides that, PLA/PEG/OPN nanofibers exhibited adequate WVTR, meeting wound healing requirements. Notably, the presence of OPN gave the PLA/PEG membranes better mechanical properties, increasing their tensile strength (TS) from 3.4 MPa (PLA/PEG) to 5.3 MPa (PLA/PEG/OPN), as well as excellent antioxidant properties (Antioxidant activity with approximately 45 % oxidation inhibition). Therefore, the nanofiber mats based on PLA/PEG, especially those incorporated with OPN, are promising options for use as antioxidant dressings to aid skin healing.


Subject(s)
Bandages , Membranes, Artificial , Nanofibers , Plant Extracts , Polyesters , Polyethylene Glycols , Polyethylene Glycols/chemistry , Polyesters/chemistry , Nanofibers/chemistry , Plant Extracts/chemistry , Plant Extracts/pharmacology , Animals , Mice , Permeability , Cell Survival/drug effects , Spectroscopy, Fourier Transform Infrared , Antioxidants/chemistry , Antioxidants/pharmacology , Cell Line , Wound Healing/drug effects , Fibroblasts/drug effects
11.
Plant Sci ; 344: 112079, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38588981

ABSTRACT

The cotton boll weevil (CBW, Anthonomus grandis) stands as one of the most significant threats to cotton crops (Gossypium hirsutum). Despite substantial efforts, the development of a commercially viable transgenic cotton event for effective open-field control of CBW has remained elusive. This study describes a detailed characterization of the insecticidal toxins Cry23Aa and Cry37Aa against CBW. Our findings reveal that CBW larvae fed on artificial diets supplemented exclusively with Cry23Aa decreased larval survival by roughly by 69%, while supplementation with Cry37Aa alone displayed no statistical difference compared to the control. However, the combined provision of both toxins in the artificial diet led to mortality rates approaching 100% among CBW larvae (LC50 equal to 0.26 PPM). Additionally, we engineered transgenic cotton plants by introducing cry23Aa and cry37Aa genes under control of the flower bud-specific pGhFS4 and pGhFS1 promoters, respectively. Seven transgenic cotton events expressing high levels of Cry23Aa and Cry37Aa toxins in flower buds were selected for greenhouse bioassays, and the mortality rate of CBW larvae feeding on their T0 and T1 generations ranged from 75% to 100%. Our in silico analyses unveiled that Cry23Aa displays all the hallmark characteristics of ß-pore-forming toxins (ß-PFTs) that bind to sugar moieties in glycoproteins. Intriguingly, we also discovered a distinctive zinc-binding site within Cry23Aa, which appears to be involved in protein-protein interactions. Finally, we discuss the major structural features of Cry23Aa that likely play a role in the toxin's mechanism of action. In view of the low LC50 for CBW larvae and the significant accumulation of these toxins in the flower buds of both T0 and T1 plants, we anticipate that through successive generations of these transgenic lines, cotton plants engineered to overexpress cry23Aa and cry37Aa hold promise for effectively managing CBW infestations in cotton crops.


Subject(s)
Bacillus thuringiensis Toxins , Bacterial Proteins , Endotoxins , Gossypium , Hemolysin Proteins , Larva , Plants, Genetically Modified , Weevils , Gossypium/genetics , Gossypium/parasitology , Animals , Weevils/genetics , Plants, Genetically Modified/genetics , Endotoxins/genetics , Endotoxins/metabolism , Bacterial Proteins/genetics , Bacterial Proteins/metabolism , Bacterial Proteins/pharmacology , Hemolysin Proteins/genetics , Hemolysin Proteins/metabolism , Hemolysin Proteins/pharmacology , Larva/drug effects , Bacillus thuringiensis/genetics , Pest Control, Biological
12.
Int J Retina Vitreous ; 10(1): 35, 2024 Apr 23.
Article in English | MEDLINE | ID: mdl-38654369

ABSTRACT

BACKGROUND: Rhegmatogenous retinal detachment (RRD) is a serious condition that occurs when the retina detaches from its underlying retinal pigment epithelium. RRDs associated with giant retinal tears (GRTs) are caused by retinal tears at least 90° or one-quarter of the circumferential extent. This scoping review systematically identifies and summarizes clinical studies evaluating surgical techniques for the management of GRT-related RRDs, discusses functional and visual outcomes and the risk factors affecting treatment outcomes. METHODS: This study was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. PubMed, Scopus, Google Scholar, and Springer Link databases were searched for relevant papers (from January 2001 to March 2023). Studies that were published in the English language and reported the risk factors, management, and treatment outcomes of GRT-related RRDs were included in the review. The outcome measures included anatomic success rates, changes in BCVA (logMAR) from baseline to the final follow-up, and adverse events. RESULTS: A total of 11,982 articles were identified. After the title and abstract review, 71 studies were deemed eligible for full-text review. Thirty-six studies that met the eligibility criteria were included in the final review. Four surgical techniques were identified: pars plana vitrectomy (PPV), combined PPV and scleral buckling, scleral buckling alone, and pneumatic retinopexy. Various types of tamponades, including gas, silicone oil, and air, have been used. PPV was the most commonly used surgical technique in 33.1-100% of patients. Among the 20 studies that used PPV alone, 17 were associated with preoperative PVR. In addition, scleral buckling alone or in combination with PPV was reported as a treatment option in 10 studies, with 2-100% of patients experiencing scleral buckling alone and 13.6-100% experiencing combined PPV and complementary scleral buckling. Primary anatomic success (PAS) was achieved with retinal reattachment via a single operation with no residual tamponade, whereas final anatomic success (FAS) was achieved via more than one operation with no residual tamponade. Reported single surgery anatomic success (SSAS) rates range from 65.51 to 100%. The preoperative best-corrected visual acuity (BCVA) ranged from 0.067 to 2.47 logMAR, whereas the postoperative BCVA ranged from 0.08 to 2.3 logMAR. An improvement in visual acuity was observed in 29 studies. Cataracts (3.9-28.3%) were the most common postoperative complication, followed by high IOP (0.01-51.2%) and PVR (0.8-31.57%). CONCLUSION: PPV is the most common surgical technique, and currently microincision vitrectomy surgery (MIVS) systems are commonly employed. Silicone oil is the most frequently used tamponade in RRD repair. Risk factors for GRT-related RRD include age, sex, lens status, high myopia status, proliferative vitreoretinopathy (PVR), presenting visual acuity, the extent of the GRT and retinal detachment, and macular involvement. Future research areas include guidelines to reduce variability in the reporting of surgical methodology, choice of tamponades, and reporting of functional and visual outcomes to inform the best therapeutic interventions in GRT-related RRD.

13.
Int. braz. j. urol ; 50(2): 136-151, Mar.-Apr. 2024. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1558061

ABSTRACT

ABSTRACT Background: Parasacral Transcutaneous Electrical Nerve Stimulation (PTENS) is a treatment used in enuresis refractory to first-line treatment. This review aimed to evaluate the effectiveness of PTENS in treating monosymptomatic enuresis (MNE) in children and adolescents. Methods: The study followed the Preferred Reporting Items for Systematic (PRISMA) guidelines. The search was carried out in the following databases: MEDLINE (via PubMed), Web of Science, SCOPUS, Central Cochrane Library and Physiotherapy Evidence Database (PEDro). The selected studies were randomized clinical trials (RCTs). The "Risk of Bias tool for randomized trials" and the "Risk of Bias VISualization" were used to analyze the risk of bias. Results: Of the 624 studies selected, four RCTs were eligible. Three included 146 children and adolescents aged between six and 16.3 years and used similar PTENS protocols with a frequency of 10 Hz, pulse duration of 700 µs and 20 minutes three times/week. One study enrolled 52 patients aged seven to 14 years used PTENS at home, with a pulse duration of 200 µs and 20 to 60 minutes twice/day. Risk of bias was observed in three studies due to results' randomization and measurement. Two studies showed a partial response with a reduction in wet nights, one a complete response in 27% of patients, and one showed no improvement. Conclusion: PTENS reduces wet nights' frequency but does not cure them, except in 27% of patients in one study. Limited RCTs and data heterogeneity are limitations.

14.
PLoS One ; 19(4): e0298117, 2024.
Article in English | MEDLINE | ID: mdl-38573916

ABSTRACT

Selection of adjuvant to be combined with the antigen is an extremely important point for formulating effective vaccines. The aim of this study was to evaluate reactogenicity, levels of IgM, IgG and subclasses (IgG1, IgG2b and IgG3), and protection elicited by vaccine formulations with association of chitosan coated alginate or Montanide ISA 61 with γ-irradiated Brucella ovis. The alginate/chitosan biopolymers as well as the Montanide ISA 61 emulsion elicited intense and long-lasting local response, especially when associated with the antigen. However, Montanide ISA 61 induced less intense reactogenicity when compared to alginate/chitosan. Furthermore, γ-irradiated B. ovis with Montanide ISA 61 induced higher levels of IgG2b an important marker of cellular immune response. In conclusion, Montanide ISA 61 resulted in milder reactogenicity when compared to the alginate/chitosan, while it induced a high IgG2b/IgG1 ratio compatible with a Th1 profile response.


Subject(s)
Chitosan , Mineral Oil , Vaccines , Animals , Mice , Sheep , Adjuvants, Vaccine , Capsules , Adjuvants, Immunologic/pharmacology , Immunoglobulin G , Mice, Inbred BALB C
15.
Trop Anim Health Prod ; 56(4): 126, 2024 Apr 16.
Article in English | MEDLINE | ID: mdl-38625501

ABSTRACT

The objective of this study was to compare the indirect methods of obtaining digestibility with the direct method of total fecal collection to estimate the apparent digestibility of nutrients in sheep and goats supplemented with non-protein nitrogen. Five goats and five sheep with no defined racial pattern were used, distributed in two 5 × 5 Latin squares, with split plots, considering the diets as plots and the apparent digestibility determination methodologies as subplots. The diets were composed of buffelgrass hay and the addition, via ruminal infusion, of increasing amounts of nitrogen supplementation in order to gradually raise the CP level of the basal diet in intervals of 2% points, that is, + 2, +4, + 6 and + 8%. Samples of the feeds offered, and the leftovers were collected daily during the five days of collection to determine the nutrient intake, as well as the total collection of feces to determine the apparent digestibility of the nutrients. The amount of fecal dry matter excreted was estimated by the concentration of Indigestible Acid Detergent Fiber (ADFi), Indigestible Neutral Detergent Fiber (NDFi), Indigestible Dry Matter at 244 h (DMi 244 h) and Indigestible Dry Matter at 264 h (DMi 264 h). Among the evaluated markers, DMi 264 h had the lowest accuracy in estimating fecal excretion and nutrient digestibility. For the goat species, the markers ADFi and DMi 244 h proved to be able to adequately predict fecal excretion and digestibility indices, while NDFi stood out for both species. Among the evaluated markers, NDFi is the one that most accurately estimates the nutrient digestibility of the diet for goats and sheep.


Subject(s)
Detergents , Goats , Animals , Sheep , Nutrients , Dietary Supplements , Nitrogen
16.
BMC Psychiatry ; 24(1): 267, 2024 Apr 09.
Article in English | MEDLINE | ID: mdl-38594701

ABSTRACT

BACKGROUND: Yoga can be used as a complementary intervention to conventional treatments, whether pharmacological or non-pharmacological. Sustained practice of yoga can generate a series of benefits for individuals' quality of life and improve their physical fitness. OBJECTIVE: To investigate the potential effects of yoga as an adjunct intervention in conditions involving impulse control issues, such as attention deficit hyperactivity disorder (ADHD), borderline personality disorder, bipolar affective disorder, and substance use disorders. METHODS: We performed a systematic review of placebo-controlled, randomized trials of yoga in patients with impulsivity. PubMed, Web of Science, and Science Direct databases were searched for trials published up to January, 2023. Data were extracted from published reports and quality assessment was performed per Cochrane recommendations. RESULTS: Out of 277 database results, 6 RCT were included in this systematic review. To assess the level of attention and impulsiveness, the following scales were analyzed: Barratt Impulsiveness, UPPS-P Impulsive Behavior scale, Conners' Continuous Performance Test IIª and Conners' Parent Rating Scale-Revised: Long. CONCLUSIONS: Yoga didn't have a significant improvement in impulsivity when compared to placebo. There are many tools to assess impulsivity, but they mean different concepts and domains consisting in a weakness on comparison of yoga effects. PROSPERO REGISTRATION: CRD42023389088.


Subject(s)
Impulsive Behavior , Yoga , Yoga/psychology , Humans , Randomized Controlled Trials as Topic , Mental Disorders/therapy , Mental Disorders/psychology , Attention Deficit Disorder with Hyperactivity/therapy , Attention Deficit Disorder with Hyperactivity/psychology , Bipolar Disorder/therapy , Bipolar Disorder/psychology , Borderline Personality Disorder/therapy , Borderline Personality Disorder/psychology , Substance-Related Disorders/therapy , Substance-Related Disorders/psychology
17.
Clin Nutr ESPEN ; 60: 139-145, 2024 04.
Article in English | MEDLINE | ID: mdl-38479902

ABSTRACT

OBJECTIVE: Evaluate the influence of the BsmI polymorphism of the vitamin D receptor gene on vitamin D levels, and inflammatory and oxidative stress markers in patients with Cystic Fibrosis supplemented with cholecalciferol megadose. METHODS: We performed a single-arm, non-randomized pre- and post-study of 17 patients aged 5 to 20 years with cystic fibrosis diagnosed with vitamin D insufficiency/deficiency 25-hydroxy vitamin< 30 ng/mL. Individuals were genotyped for the BsmI polymorphism of the vitamin D receptor gene and all received cholecalciferol supplementation of 4,000 IU daily for children aged 5 to 10 years and 10,000 IU for children over 10 years of age for 8 weeks. Interviews were conducted with personal data, sun exposure, anthropometric and blood samples of 25-hydroxy vitamin parathormone, serum calcium, ultrasensitive C-reactive protein, alpha 1 acid glycoprotein, total antioxidant capacity, malondialdehyde and kidney and liver function. Inter- and intra-group assessment was assessed by paired t-test Anova test or its non-parametric counterparts. RESULTS: The individuals were mostly male and reported no adverse effects from the use of supplementation, 64 % had 25-hydroxy vitamin levels >30 ng/mL. Patients with BB and Bb genotypes showed increased serum levels of 25-hydroxy vitamin. The group with BB genotype showed a reduction in alpha 1 acid glycoprotein. And individuals with the bb genotype had high levels of malondialdehyde compared to the pre-intervention time. CONCLUSION: It is concluded that variations of the BsmI polymorphism of the vitamin D receptor gene have different responses in vitamin D levels and markers of inflammation and oxidative stress.


Subject(s)
Cystic Fibrosis , Vitamin D Deficiency , Child , Female , Humans , Male , Cholecalciferol , Cystic Fibrosis/genetics , Dietary Supplements , Malondialdehyde , Orosomucoid/metabolism , Oxidative Stress , Receptors, Calcitriol/genetics , Receptors, Calcitriol/metabolism , Vitamin D , Vitamin D Deficiency/genetics , Vitamins , Child, Preschool , Adolescent , Young Adult
18.
Arch Oral Biol ; 162: 105942, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38452415

ABSTRACT

OBJECTIVES: The aim of this scoping review was to evaluate the available scientific evidence regarding the use of flavonoids in the treatment of caries-affected dentin focusing on bonding to dentin. METHODS: A comprehensive literature search was performed in five databases from March 2022 and updated in April 2023: PubMed, EMBASE, Scopus, Web of Science, and Scielo. Additionally, the references of included studies were manually searched. Gray literature was excluded from the review. STUDY SELECTION: Inclusion criteria included in vitro, in situ, and in vivo studies (animal or human) published in English. Abstracts, reviews, case reports, book chapters, doctoral dissertations, guidelines, and studies using pure plant extracts were excluded. Data collected from the selected studies were summarized and subjected to narrative and descriptive analysis. Out of the 91 studies identified, only 16 studies met the inclusion criteria. RESULTS: The review analyzed eight different flavonoids (hesperidin, galardin, proanthocyanidin, genipin, quercetin, naringin, epigallocatechin-3-gallate, and other catechins subtypes) used as pretreatment or loaded into adhesive systems, primers, and phosphoric acid. The use of flavonoids improved the mechanical properties of the materials and modified the biological properties of the dentin, reducing collagen loss by the inhibition of proteolytic activity of matrix metalloproteinases (MMPs). CONCLUSIONS: Based on the findings of this scoping review, it can be concluded that the use of flavonoids as pretreatment or incorporation into dental materials preserves collagen in the hybrid layer, inhibiting the MMPs activities, modifying the collagen fibrils of the dentin matrix and improving the mechanical properties of the dental adhesive systems. Therefore, it represents a promising approach for promoting dentin biomodification. This can result in more stable bonding of adhesive restorations to caries-affected dentin.


Subject(s)
Dental Bonding , Dental Caries , Humans , Flavonoids/pharmacology , Dental Caries Susceptibility , Collagen , Dental Caries/drug therapy , Matrix Metalloproteinases , Dentin , Dentin-Bonding Agents , Materials Testing , Resin Cements , Tensile Strength
19.
J Bodyw Mov Ther ; 37: 177-182, 2024 01.
Article in English | MEDLINE | ID: mdl-38432802

ABSTRACT

INTRODUCTION: Lymphedema in the upper limb as a complication of breast cancer may lead to shoulder pain and dysfunctions. OBJECTIVE: To compare the scapular positioning, the shoulder range of motion, and muscle strength among women undergoing treatment for breast cancer with and without lymphedema and a control group. METHODS: This cross-sectional study evaluated women undergoing treatment for breast cancer (N = 25) and without lymphedema (N = 25), and a control group (N = 25). Static scapular positions and shoulder range of motion were measured by using an inclinometer. The shoulder and periscapular muscle strength were measured by using a hand-held dynamometer and the Disabilities of the Arm, Shoulder, and Hand Questionnaire was applied. Linear regression of the mixed effects model was used to compare the groups. RESULTS: Both groups of mastectomized women had reduced shoulder range of motion, scapular upward rotation, and muscle strength for shoulder and periscapular muscles compared to the control group. Also, women undergoing treatment for breast cancer with lymphedema had reduced shoulder range of motion, scapular upward rotation, increased anterior tilt, reduced muscle strength of the upper trapezius, and greater upper limb disability compared to women without lymphedema. CONCLUSION: Women undergoing treatment for breast cancer with lymphedema had even greater shoulder and scapulothoracic impairments when compared to the control group and women without lymphedema.


Subject(s)
Breast Neoplasms , Lymphedema , Superficial Back Muscles , Female , Humans , Shoulder , Cross-Sectional Studies , Breast Neoplasms/complications , Upper Extremity , Lymphedema/etiology
20.
J Bodyw Mov Ther ; 37: 226-232, 2024 01.
Article in English | MEDLINE | ID: mdl-38432810

ABSTRACT

OBJECTIVES: To compare the effects of passive recovery (PR), active recovery (AR), and recovery through self-massage with the aid of foam rolling (FRR) on pain and physical capacity in healthy volunteers after a resistance exercise (RE) session. METHODS: The sample of this randomized crossover trial comprised 37 physically healthy men who underwent three sessions of RE (squat, leg press, and leg extension), involving four sets of 10 repetitions with 80% of 10MR, with an interval of seven days between sessions. PR consisted of sitting for 20min, AR included a cycle ergometer for 20min at 50% maximum heart rate, and FRR involved 10 repetitions per target body area, followed by 1min rest. Variables of physical capacity (strength, power, agility, joint range of motion, flexibility, speed, and fatigue resistance) were assessed 1h after RE, whereas pain was assessed 24h, 48h, and 72h after RE. RESULTS: In the dominant lower limb, the percentage of strength decreased (p < 0.001) by 16.3% after RE but improved (p < 0.001) by 5.2% after AR and FRR in relation to PR. Similar results were observed in the non-dominant lower limb. Agility was enhanced (p < 0.001) by 3.6% in AR and 4.3% in FRR compared with the baseline assessment. The recoveries for the other physical variables were similar. Only FRR reduced (p < 0.001) pain at 24h (22.8%), 48h (39.2%), and 72h (59.7%) compared to PR. CONCLUSIONS: Self-massage using a foam roll reduced pain and improved agility and muscle strength during recovery after exercise. TRIAL REGISTRATION NUMBER: NCT04201977.


Subject(s)
Resistance Training , Male , Humans , Cross-Over Studies , Exercise Therapy , Muscle Strength , Pain
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