Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 95
Filtrar
1.
Chem Biodivers ; : e202401076, 2024 Jun 20.
Artigo em Inglês | MEDLINE | ID: mdl-38899851

RESUMO

This study reports on the chemical composition and antileishmanial and anticandidal activities of volatile oils of Schinus molle dried leaves (SM), Cinnamomum cassia branch bark (CC) and their blends. Major constituents of SM were spathulenol (26.93%), ß-caryophyllene (19.90%), and caryophyllene oxide (12.69%), whereas (E)-cinnamaldehyde (60.11%), cinnamyl acetate (20.90%) and cis-2-methoxycinnamic acid (10.37%) were predominant in CC. SM (IC50 = 21.45 µg/mL) and CC (IC50 = 23.27 µg/mL) displayed good activity against L. amazonensis promastigotes, besides having good or moderate activity against nine Candida strains, with Minimum Inhibitory Concentration (MIC) values ranging from 31.25 to 250 µg/mL. While the three SM and CC blends were not more active than the EOs tested individually, they exhibited remarkably high antileishmanial activity, with IC50 values ranging between 3.12 and 7.04 µg/mL, which is very similar to the IC50 of amphotericin B (positive control).

2.
Food Res Int ; 187: 114370, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38763648

RESUMO

The Brazilian Cerrado biome is rich in plant biodiversity, with fruits that have unique sensory characteristics and high nutritional quality. Among the various fruits, baru (Dipteryx alata Vog.) has attracted the attention of researchers because of its high lipid, protein, carbohydrate, fiber, and micronutrient (minerals and vitamins) contents. The present study evaluated the effects of regular consumption of baru almonds for over 60 days on the biochemical and anthropometric profiles and fecal microbiota of obese individuals. A pilot study was conducted on 15 individuals with obesity who were instructed to consume a 20-gram portion of baru almonds throughout the day. The body composition was assessed using anthropometric measurements. Blood pressure, glucose levels, lipid profile, serum insulin and iron contents, and fecal microbiota composition were determined at baseline (day 0) and after 60 days. Baru almond consumption contributed to changes in biochemical parameters, improved HDL cholesterol levels, and reduced total and LDL cholesterol levels. Some positive changes in the microbiota composition after consuming baru almonds include a decrease in the Faecalibacterium family and an increase in the Provotella genus. Therefore, ingesting baru almonds can modulate gut microbiota of individuals with obesity.


Assuntos
Fezes , Microbioma Gastrointestinal , Obesidade , Prunus dulcis , Humanos , Projetos Piloto , Masculino , Obesidade/microbiologia , Feminino , Adulto , Fezes/microbiologia , Fezes/química , Brasil , Pessoa de Meia-Idade , Glicemia/metabolismo
3.
Plant Foods Hum Nutr ; 78(4): 796-802, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37919536

RESUMO

Yerba-mate (Ilex paraguariensis) is recognized for its biocompounds and bioactive properties. This study aimed to assess the potential of yerba-mate extract to modulate the intestinal microbiota in rats. After the ethical committee approval (CEUA - UPF, number 025/2018), the Wistar rats were given a daily dose of 3.29 mg of phenolic compounds per animal for 45 days. The antioxidant activity of the extract was assessed by ABTS and FRAP assays and the total phenolic compounds was measured at different pH levels. Identification and quantification of chlorogenic acid isomers were carried out using high-performance liquid chromatography (HPLC). Intestinal microbiota modulation was evaluated by administering the yerba-mate extract or water (control) to Wistar rats via intragastric gavage and its efficiency was measured through PCR. The antioxidant capacity of the yerba-mate extract was 64.53 ± 0.26 µmol Trolox/mL (ABTS) and 52.96 ± 0.86 µmol Trolox/mL (FRAP). The total phenolic compounds showed higher levels at pH 7.5 compared to pH 2.0. Chlorogenic acid isomers were found in greater abundance, with a concentration of 14.22 g/100 g. The administration of the extract resulted in positive modulation of the intestinal microbiota, specifically for the genera Lactobacillus sp. and Prevotella sp. The increase of these genera is related to the promotion of homeostasis of the gut microbiota. Therefore, these findings indicate that yerba-mate extract possesses significant antioxidant activity and can effectively modulate the intestinal microbiota in rats. These results support the potential use of yerba-mate as an alternative for controlling and preventing diseases associated with intestinal dysbiosis.


Assuntos
Microbioma Gastrointestinal , Ilex paraguariensis , Ratos , Animais , Ilex paraguariensis/química , Ratos Wistar , Antioxidantes/farmacologia , Extratos Vegetais/farmacologia , Extratos Vegetais/química , Ácido Clorogênico/farmacologia
4.
Int J Pharm ; 643: 123221, 2023 Aug 25.
Artigo em Inglês | MEDLINE | ID: mdl-37437857

RESUMO

Despite the global burden of viral diseases transmitted by Aedes aegypti, there is a lack of effective means of prevention and treatment. Strategies for vector control include chemical and biological approaches such as organophosphates and Bacillus thuringiensis var. israelensis (Bti), among others. However, important concerns are associated, such as resistance in mosquito larvae and deleterious effects on non-target organisms. In this scenario, novel approaches against A. aegypti have been investigated, including natural products (e.g. vegetable oil and extracts) and nanostructured systems. This review focuses on potential strategies for fighting A. aegypti, highlighting plant-based materials and nanomaterials able to induce toxic effects on egg, larva, pupa and adult mosquitoes. Issues including aspects of conventional vector control strategies are presented, and finally new insights on development of eco-friendly nanoformulations against A. aegypti are discussed.


Assuntos
Aedes , Produtos Biológicos , Nanopartículas , Animais , Controle de Mosquitos , Produtos Biológicos/farmacologia , Mosquitos Vetores , Vetores de Doenças , Larva
5.
J Environ Manage ; 326(Pt B): 116779, 2023 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-36413956

RESUMO

The objective of this work was to investigate the viability of using retorted oil shale as urea coating (U + ROS) in the decrease of N losses by ammonia (NH3-N) volatilization. The experiment was carried out in a silvopastoral system with a randomized block design with split-plots. The main treatments consisted of spatial arrangements of the trees, while the subdivision of the plots constituted the surface application of common urea (U) and retorted oil shale-coated urea (U + ROS) for the pasture. In addition to NH3 measurements, fluxes of N2O and CH4 in the soil were determined, as well as soil moisture and contents of mineral N (0-5 cm). Independently of tree spacing, the use of ROS along with urea (U + ROS) showed a mean decrease of 15.9% in the accumulated NH3 volatilization and 24.1% in the peaks of emission, although it was not significantly different from the U treatment (P < 0.10). In addition, it did not increase significantly the N2O and CH4 emissions, evidencing a potential to decrease N losses by ammonia volatilization, with no impact on greenhouse gases emissions from the soil.


Assuntos
Amônia , Gases de Efeito Estufa , Amônia/química , Fertilizantes/análise , Ureia/química , Óxido Nitroso/análise , Espécies Reativas de Oxigênio , Solo/química , Minerais , Metano/análise , Agricultura
6.
Artigo em Português | LILACS, CONASS, Coleciona SUS, SES-GO | ID: biblio-1444113

RESUMO

Caracterizar as alterações de linguagem encontradas em pacientes com lesão encefálica adquirida em fase aguda Métodos: Trata-se de uma pesquisa observacional, descritiva do tipo transversal. A avaliação foi realizada nas enfermarias de um hospital de urgências, com pacientes de idade superior a 18 anos, diagnóstico de lesão encefálica adquirida e tempo de internação de até 60 dias. O protocolo utilizado incluiu avaliação das praxias orais, expressão, compreensão da linguagem oral e leitura. Ao final, foi possível apresentar as hipóteses diagnósticas de afasias fluentes e não fluentes, disartria e sem alteração de linguagem. A análise dos dados foi realizada por meio de estatística descritiva através da distribuição de frequência absoluta e frequência relativa Resultados: A amostra foi composta por 24 pacientes sendo a maioria do gênero masculino, com média de idade de 51 anos. O diagnóstico de maior frequência foi Acidente Vascular Cerebral. Dos pacientes avaliados, 79% tiveram alterações de fala/linguagem. As hipóteses diagnósticas fonoaudiológicas encontradas foram: afasia global, afasia de broca, afasia transcortical mista, afasia de condução, afasia transcortical motora, afasia transcortical sensorial e disartria. Conclusão: A afasia global foi o transtorno de linguagem de maior ocorrência entre os indivíduos, bem como o gênero masculino e o acidente vascular cerebral. A avaliação da linguagem de pacientes com lesões encefálicas adquiridas na fase aguda é pertinente, pois promove o levantamento de alterações desde as perceptíveis até as mais discretas


To characterize the language disorders found in patients with brain injury acquired in the acute phase Methods: This is an observational, descriptive cross-sectional study. The evaluation was carried out in the wards of an emergency hospital, with patients aged over 18 years, diagnosed with acquired brain injury and hospitalization time of up to 60 days. The protocol used included assessment of oral praxis, expression, comprehension of oral language and reading. In the end, it was possible to present the diagnostic hypotheses of fluent and non-fluent aphasias, dysarthria and without language alteration. Data analysis was performed using descriptive statistics through the distribution of absolute frequency and relative frequency. Results: The sample consisted of 24 patients, most of whom were male, with a mean age of 51 years. The most frequent diagnosis was Cerebral Vascular Accident. Of the evaluated patients, 79% had speech/language disorders. The speech-language diagnostic hypotheses found were: global aphasia, drill aphasia, mixed transcortical aphasia, conduction aphasia, motor transcortical aphasia, sensory transcortical aphasia and dysarthria. Conclusion: Global aphasia was the most frequent language disorder among individuals, as well as males and stroke. The evaluation of the language of patients with brain injuries acquired in the acute phase is relevant, as it promotes the survey of changes from the perceptible to the most discreet


Assuntos
Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Idoso , Adulto Jovem , Lesões Encefálicas/complicações , Acidente Vascular Cerebral/complicações , Transtornos da Linguagem , Afasia/diagnóstico , Disartria
7.
Braz. j. oral sci ; 21: e225991, jan.-dez. 2022. tab
Artigo em Inglês | LILACS, BBO - Odontologia | ID: biblio-1354992

RESUMO

Aim: A retrospective, cross-sectional study was carried out to evaluate the performance of resin composite restorations placed by undergraduate dental students with 1 to 15 years of placement based on dental records. Methods: Four calibrated operators evaluated 498 restorations (anterior and posterior) of 120 patients according to Ryge's validated criteria (USPHS). Results: The criteria that showed the smallest changes between the types of failures were color matching, marginal discoloration and surface texture. Regarding the longevity, the surface texture showed an increase in the frequency of failures from the second time interval (3.1 to 6 years). Higher prevalence of failure was found in class II and III restorations, with secondary caries being the main reason. No significant differences were found for anatomic form, marginal adaptation, and color matching. Class V restorations showed a higher fracture rate with total displacement of the restoration, with no increase in the frequency of fracture over time. Conclusion: High rate of restoration failure was observed, possibly due to the lack of experience and skills of the students. This outcome highlight the need for continuous revision and improvements of teaching practice regarding the development of clinical competences and skills by dental students


Assuntos
Humanos , Masculino , Feminino , Resinas Compostas , Falha de Restauração Dentária , Restauração Dentária Permanente
8.
BMJ Support Palliat Care ; 12(4): 388-402, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36418033

RESUMO

OBJECTIVE: To evaluate current evidence of the effect of specialised nutritional interventions on nutritional status, survival, quality of life and measures of functionality in patients with incurable cancer. METHODS: Systematic literature review according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines using PubMed/MEDLINE, EMBASE, Scopus, LILACS and Cochrane Library databases. Clinical studies that evaluated different specialised nutritional interventions, such as nutritional counselling, oral nutritional supplementation (ONS), enteral nutrition (EN) and parenteral nutrition (PN), were eligible. Only studies classified as being of high methodological quality (ie, low or moderate risk of bias) were included. RESULTS: A total of 22 studies reporting on 2448 patients were deemed eligible. Five types of specialised nutrition were observed: mixed (multimodal nature, ie, dietary counseling, ONS, physical activity and/or drugs) (n=12), ONS (n=5), PN (n=3), EN (n=1) and multidisciplinary team counselling (n=1). Benefits of any kind from the interventions were reported in 14 (63.6%) studies, mainly resulting from mixed intervention. Nutritional status improved in 12 (60.0%) of 20 studies and quality of life improved in eight (50.0%) of 16 studies. Few studies have evaluated the influence of nutritional interventions on survival and measure of functionality, and have not shown improvement in these outcomes. CONCLUSION: Despite the limited evidence, specialised nutritional interventions can yield positive effects for patients with incurable cancer, mainly in their nutritional status and quality of life.


Assuntos
Neoplasias , Qualidade de Vida , Humanos , Neoplasias/complicações , Estado Nutricional , Nutrição Enteral
9.
Pharmaceuticals (Basel) ; 15(10)2022 Oct 07.
Artigo em Inglês | MEDLINE | ID: mdl-36297344

RESUMO

A range of drugs used in cancer treatment comes from natural sources. However, chemotherapy has been facing a major challenge related to multidrug resistance (MDR), a mechanism that results in a decrease in the intracellular concentration of chemotherapeutic agents, resulting in reduced treatment efficacy. The protein most frequently related to this effect is P-glycoprotein (P-gp), which is responsible for promoting drug efflux into the extracellular environment. Myristicin is a natural compound isolated from nutmeg and has antiproliferative activity, which has been reported in the literature. The present study aimed to evaluate the effect of the association between myristicin and chemotherapeutic agents on the NCI/ADR-RES ovarian tumor lineage that presents a phenotype of multidrug resistance by overexpression of P-gp. It was observed that myristicin showed no cytotoxic activity for this cell line, since its IC50 was >1 mM. When myristicin was associated with the chemotherapeutic agents cisplatin and docetaxel, it potentiated their cytotoxic effects, a result evidenced by the decrease in their IC50 of 32.88% and 75.46%, respectively. Studies conducted in silico indicated that myristicin is able to bind and block the main protein responsible for MDR, P-glycoprotein. In addition, the molecule fits five of the pharmacokinetic parameters established by Lipinski, indicating good membrane permeability and bioavailability. Our hypothesis is that, by blocking the extrusion of chemotherapeutic agents, it allows these agents to freely enter cells and perform their functions, stopping the cell cycle. Considering the great impasse in the chemotherapeutic treatment of cancer that is the MDR acquired by tumor cells, investigating effective targets to circumvent this resistance remains a major challenge that needs to be addressed. Therefore, this study encourages further investigation of myristicin as a potential reverser of MDR.

10.
Phytochemistry ; 203: 113341, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-35952769

RESUMO

Diet actively influences gut microbiota and body homeostasis. The predominance of beneficial species results in symbiosis, while dysbiosis is characterized by an imbalance between microbial communities. Food plays a key role in this dynamic and in promoting the health of individuals. Ilex paraguariensis, also known as yerba mate, is a traditional plant from Latin America that has a complex matrix of bioactive substances, including methylxanthines, triterpenes, saponins, and phenolics. The consumption of yerba mate is associated with antioxidant, cardioprotective, anti-inflammatory, and anti-obesity effects. However, to the best of our knowledge, there have been no studies on yerba mate as a modulating agent of intestinal microbiota. Phenolics are the major compounds in yerba mate and have been reported to act in modulating the microbiome. In this review, we explore the activity of yerba mate as a possible stimulant of gut microbiota and present its main phenolics and their biological effects. We also propose different mechanisms of action of these phenolics and possible doses for their effectiveness.


Assuntos
Microbioma Gastrointestinal , Ilex paraguariensis , Saponinas , Triterpenos , Anti-Inflamatórios , Antioxidantes , Fenóis/análise , Fenóis/farmacologia , Extratos Vegetais/farmacologia , Saponinas/farmacologia
11.
An Acad Bras Cienc ; 94(4): e20201592, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35830021

RESUMO

This study evaluated of the effects of açai oil during the close-up dry period of Holstein cows on colostrum quality, as well as on the immune and antioxidant responses of their calves. Sixteen multiparous cows were assigned randomly to two treatments: 1) CONTROL (n = 8) - 4.48% of soybean oil/concentrate; 2) AÇAI (n =8) - 4.48% of açai oil/concentrate. Cows fed with açai oil had greater (P≤0.04) colostrum concentrations of immunoglobulins (Ig) G (1st and 2nd milking), IgG heavy chains, IgA (only at 1st milking), alpha-lactalbumin (1st milking), total protein, and antioxidant capacity against peroxyl radicals (only at 1st milking). Cows fed with açai oil had greater serum concentrations of globulin (only on the day of calving) and total protein (only on the day of calving) (P = 0.03). Calves born of cows fed with açai oil had greater serum concentrations of total protein (only 24 and 48 h after calving) and serum concentration of IgG heavy chain (only 24 h after calving) and globulin (only 24 and 48 h after calving) (P = 0.01). These data suggest that the addition of açai oil in the cow feed during the close-up dry period boosted immunity in their calves by altering the composition of colostrum.


Assuntos
Antioxidantes , Colostro , Animais , Bovinos , Colostro/fisiologia , Feminino , Imunidade , Imunoglobulina G , Lactação , Parto/fisiologia , Gravidez
12.
Nutr Rev ; 80(6): 1580-1598, 2022 05 09.
Artigo em Inglês | MEDLINE | ID: mdl-35026011

RESUMO

Blenderized formulations (BFs) are prepared by homogenization of food that is normally used in oral nutrition. BFs are mainly used in home enteral nutrition (HEN), although their use has also been reported by hospitals when commercial enteral formulas are not available. HEN is applied when the patient has been discharged from the hospital. This nutritional therapy promotes the patient's reintegration into the family nucleus and promotes humanized care, and decreases treatment costs. However, the patient should continue to receive health and nutritional care, ranging from periodic nutritional re-evaluation to adaptation of the dietary plan. HEN provides the patient a greater contact with the family, whereas BFs promote the adaptation of the diet with food, respecting the food diversity and culture, lower cost, and easier access to food. Disadvantages of BFs include more time spent by the professional to calculate the dietary plan, greater difficulty in adjusting daily needs, and less microbiological and chemical stability. In this review, the nutritional, food security, and safety aspects of BF used in HEN are discussed. Technological quality aspects that are essential knowledge in the preparation of the patient's dietary plan also are presented.


Assuntos
Nutrição Enteral , Serviços de Assistência Domiciliar , Dieta , Inocuidade dos Alimentos , Humanos , Estado Nutricional
13.
Crit Rev Food Sci Nutr ; 62(6): 1536-1552, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-33153292

RESUMO

Functional foods are foods that, in addition to having nutrients, contain in their composition ingredients that act specifically on body functions associated with the control and reduction of the risk of developing some diseases. In this sense, kefir, a group of microorganisms in symbiosis, mainly yeasts and lactic acid bacteria, stands out. The trend of ingesting kefir has been focused on the development of products that serve specific consumers, such as those who are lactose-intolerant, vegans and vegetarians, and consumers in general who seek to combine the consumption of functional products with the improvement of their health and lifestyle. This overview provides an insight into kefir, presenting the technological process to produce a nondairy beverage and evidence of the benefits of its use to reduce the risk of disease. We also discuss regulatory aspects of products fermented using kefir. Until now, the use of kefir (isolated microorganism, kefiran, or fermented product) has demonstrated the potential to promote an increase in the number of bifidobacteria in the colon and an increase in the glycemic control while reducing the blood cholesterol and balancing the intestinal microbiota, which helps in reducing constipation and diarrhea, improving intestinal permeability, and stimulating and balancing the immune system. However, the literature still has gaps that need to be clarified, such as the consumption dose of kefir or its products to cause some health benefit.


Assuntos
Kefir , Lactobacillales , Bebidas , Bifidobacterium , Fermentação , Humanos , Leveduras
14.
Crit Rev Food Sci Nutr ; 62(27): 7632-7649, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-33977838

RESUMO

Evidence suggests that bioactive compounds present in fruits and vegetables, including carotenoids, polyphenols, and phytosterols, may have beneficial effects against the development of obesity and other diseases. The fruits of the Brazilian Cerrado are rich in biologically active compounds but are underexplored by the population being used only locally dietary consumption. The objective of this review is to direct attention to the bioactive compounds already elucidated for the fruits of "Cerrado" cashew (Anacadium othanianum Rizz.), baru almond (Dipteryx alata Vogel), cagaita (Eugenia dysenterica DC.), "Cerrado" pear (Eugenia klotzschiana Berg), mangaba (Hancornia speciosa), and pequi (Caryocar brasiliense Camb), demonstrating possible metabolic effects of the consumption of these fruits on the metabolic syndrome and its risk factors. Studies have shown that Cerrado native fruits have a high content of bioactive compounds such as phenolic compounds, which also demonstrate high antioxidant capacity and may be related to the protective effect in metabolic syndrome-related diseases by act as inhibitors in various processes in lipid metabolism and glucose transport. Although more scientific evidence is still needed, the consumption of native fruits from the Cerrado seems to be a promising strategy which -along with other strategies such as nutritional therapy- can ameliorate the effects of the metabolic syndrome.


Assuntos
Síndrome Metabólica , Fitosteróis , Antioxidantes , Brasil , Carotenoides/farmacologia , Frutas , Glucose , Humanos , Síndrome Metabólica/prevenção & controle , Polifenóis/farmacologia
15.
Nutr Clin Pract ; 37(2): 425-434, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-34245470

RESUMO

OBJECTIVE: To assess the frequency and factors associated of the provision of nutrition support (NS) in the last 30 days of life in patients with advanced cancer in the palliative or non-palliative setting. METHODS: Retrospective cohort study in palliative and non-palliative care units at a specialized cancer center for oncology in Brazil. The use of oral nutrition supplements (ONS) and enteral (EN) and parenteral (PN) nutrition in the 30 days before death were assessed. RESULTS: The 239 patients included were predominantly older (>60 years; 63.2%) and female (61.1%). The use of ONS was lower in palliative than non-palliative care during the last 30 (52% vs. 6%), 7 (42% vs. 4%), and 3 (23% vs. 2%) days before death (all P < .001). The use of EN and PN was lower in palliative care, decreasing with the approach of death. The independent factors associated with ONS in non-palliative care were (odds ratio): breast tumor (3.03), hypoalbuminemia (1.10), and nutrition risk (16.98); in palliative care, only the Karnofsky Performance Status (KPS) ≥40% (1.24) was associated to the use of ONS. The use of EN and PN was associated with head-neck (HN) tumor in both settings (5.41) in non-palliative and (8.74) in palliative. Others independent factors were: hypoalbuminemia (3.12) in non-palliative care and KPS (1.31) in palliative care. CONCLUSIONS: The use of NS near the end of life was high in the non-palliative and less frequent in palliative care setting. The factors associated with NS differed according to the clinical oncology setting, with one of the factors in palliative care being a better prognosis.


Assuntos
Neoplasias , Apoio Nutricional , Morte , Feminino , Humanos , Neoplasias/complicações , Neoplasias/terapia , Nutrição Parenteral , Estudos Retrospectivos
16.
Estud. Psicol. (Campinas, Online) ; 39: e200121, 2022. tab
Artigo em Inglês | LILACS, Index Psicologia - Periódicos | ID: biblio-1375427

RESUMO

This study aimed to adapt and raise evidences of validity based on the internal structure, on the relationship with other variables, and on the content of the Fear of COVID-19 Scale (FCV-19S) in Brazilian Portuguese. We performed the Confirmatory Factor Analysis of the scale, its invariance analysis by gender, and established norms for interpreting the instrument's scores. Participants were 1,000 adults of both genders. The findings showed all fit indices as satisfactory, confirming the scale's one-dimensionality and its invariance. Results also demonstrated convergent validity between the FCV-19S and the stress of the subjects. Moreover, the stratification of the intensity of fear (mild, moderate and severe) was determined based on the standardization of scores. We concluded that FCV-19S presents sufficient evidence to support its use to assess the fear of Covid-19S in Brazil.


Este estudo objetivou adaptar e levantar evidências de validade com base na estrutura interna, na relação com outras variáveis e de conteúdo da Escala de Medo da COVID-19 (EMC-19, Fear of COVID-19 Scale) para português brasileiro. Para tanto, realizou-se a Análise Fatorial Confirmatória da medida e sua análise de invariância por sexo; ademais, estabeleceu--se normas para interpretação dos escores do instrumento. Fizeram parte da pesquisa 1.000 adultos, de ambos os sexos. Os resultados evidenciaram que todos os índices de ajuste foram satisfatórios, confirmando a unidimensionalidade da escala, bem como sua invariância. Constatou-se, ainda, que houve validade convergente entre a EMC-19 e o estresse dos participantes. Além disso, foram propostos estratos de classificação da intensidade do medo (leve, moderado e severo) com base na normatização dos escores. Por fim, concluiu-se que a EMC-19 apresenta evidências suficientes que recomendam a sua utilização para medida do medo da COVID-19 no Brasil.


Assuntos
Análise Fatorial , Coronavirus , Medo
17.
Molecules ; 26(19)2021 Sep 29.
Artigo em Inglês | MEDLINE | ID: mdl-34641457

RESUMO

Natural products have been used by humanity for many centuries to treat various illnesses and with the advancement of technology, it became possible to isolate the substances responsible for the beneficial effects of these products, as well as to understand their mechanisms. In this context, myristicin, a substance of natural origin, has shown several promising activities in a large number of in vitro and in vivo studies carried out. This molecule is found in plants such as nutmeg, parsley, carrots, peppers, and several species endemic to the Asian continent. The purpose of this review article is to discuss data published in the last 10 years at Pubmed, Lilacs and Scielo databases, reporting beneficial effects, toxicity and promising data of myristicin for its future use in medicine. From 94 articles found in the literature, 68 were included. Exclusion criteria took into account articles whose tested extracts did not have myristicin as one of the major compounds.


Assuntos
Derivados de Alilbenzenos/farmacologia , Dioxolanos/farmacologia , Myristica/química , Substâncias Protetoras/farmacologia , Animais , Humanos , Literatura de Revisão como Assunto
18.
BrJP ; 4(2): 136-139, June 2021. tab, graf
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1285499

RESUMO

ABSTRACT BACKGROUND AND OBJECTIVES: To date, there is no information on the perception of injustice in patients with musculoskeletal pain in Brazil. The present study evaluated the perception of injustice in individuals with chronic musculoskeletal pain and its association with pain intensity. METHODS: Information regarding the participants' identification and experience of injustice was gathered using the Injustice Experience Questionnaire. Pain intensity data was collected through the numerical pain rating scale. The descriptive data analysis was performed. Pearson's correlation test was used to verify the association between pain intensity and perceived injustice. The level of significance adopted was alpha=95%. RESULTS: The study was composed of 110 patients with chronic musculoskeletal pain being 94 women with a mean age of 62.9±14.9 years. The mean perceived injustice was 19.45±11.68 out of a total of 48 points. The mean pain intensity was 6.39±2.48. The correlation between pain intensity and perceived injustice was r=0.23 [CI (95%) = 0.04 to 0.40; p=0.008]. The correlation between blame and unfairness and pain intensity was r=0.16 (p=0.08). For the severity and irreparability domain the correlation was r=0.28 (p=0.003). CONCLUSION: Patients with chronic musculoskeletal pain presented low levels of perceived injustice. The total score and the severity and irreparability domain of the perceived injustice instrument showed a weak correlation with pain intensity.


RESUMO JUSTIFICATIVA E OBJETIVOS: Até o presente momento, não existem dados sobre a percepção de injustiça em pessoas com dor musculoesquelética no Brasil. O presente estudo avaliou a percepção de injustiça em pessoas com dor musculoesquelética crônica e a sua associação com a intensidade de dor. MÉTODOS: Foram coletadas informações referentes à identificação e experiência de injustiça utilizando o Questionário de Injustiça Percebida e a intensidade da dor utilizando a escala numérica da dor. Foi realizada a análise descritiva dos dados. O teste de correlação de Pearson foi utilizado para se verificar a correlação entre a intensidade de dor e a injustiça percebida. O nível de significância adotado foi de alfa=95%. RESULTADOS: Foram incluídos 110 pacientes com dor musculoesquelética crônica, sendo 94 mulheres com média de idade de 62,9±14,9 anos. A média da injustiça percebida foi de 19,45±11,68 de um total de 48 pontos. A intensidade média de dor foi 6,39±2,48. A correlação entre a intensidade de dor e a injustiça percebida foi de r=0,23 [IC (95%) = 0,04 a 0,40; p=0,008]. A correlação entre culpa e injustiça e a intensidade de dor foi de r=0,16 (p=0,08). Para o domínio gravidade e irreparabilidade foi de r=0,28 (p=0,003). CONCLUSÃO: Os pacientes com dor musculoesquelética crônica apresentam baixos níveis de injustiça percebida. A pontuação total e o domínio de gravidade e irreparabilidade do instrumento de injustiça percebida apresentaram correlação fraca com a intensidade de dor.

19.
Suma psicol ; 28(1): 10-16, Jan.-June 2021. tab
Artigo em Inglês | LILACS, COLNAL | ID: biblio-1280690

RESUMO

Abstract Introduction: The Center for Epidemiologic Studies Depression Scale - Revised (CESD-R) was developed to provide an efficient screening scale for depression syndrome, mimicking the original CESD, one of the most widely used screening tools to measure depressive symptoms globally. This investigation examined the factor structure of the CESD-R with a non-clinical Brazilian population. Method: We performed exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) of two adult samples, and also conducted invariance analysis by sex and place of residence of the participants. The full sample consisted of 1,427 adults, divided into two groups. The first sample (n = 400) was used for the EFA and the second sample (n = 1027) for the CFA. Results: The EFA indicated an internal structure composed of a single factor, which explained 53.2% of the variance. The CFA attested to the unidimensionality of the measure. Fit indices and reliability indicators showed values higher than expected, without modifications in the initial structure. The model was invariant in relation to the variables investigated at four different levels (configural, metric, scalar, and strict). Conclusions: Our findings support the utility of the CESD-R and suggest its validity for application to the Brazilian population in general.


Resumo Introdução: A Center for Epidemiologic Studies Depression Scale - Revised (CESD-R) foi elaborada para fornecer um eficiente diagnóstico de sintomas de depressão, seguindo a proposta original da CESD, que é uma das escalas para rastreamento da depressão mais utilizadas mundialmente. Esta pesquisa avaliou a estrutura fatorial da CESD-R em uma população não-clínica no Brasil. Método: Realizaram-se análises fatoriais exploratória (AFE) e confirmatória (AFC) com duas amostras compostas por adultos. Também foi verificada a invariância do modelo por sexo e local de residência do participante. A amostra total foi composta por 1427 adultos, tendo sido dividida em duas subamostras. A primeira subamostra (n = 400) foi utilizada para a AFE e a segunda (n = 1027) para a AFC. Resultados: A AFE indicou uma estrutura interna composta por um único fator, que explicou 53.2% de variância. A AFC atestou unidimensionalidade da medida. Os índices de ajuste e indicadores de confiabilidade apresentaram valores acima do esperado, sem modificações na estrutura inicial. O modelo foi invariante em relação às variáveis investigadas em quatro diferentes níveis (configural, métrico, escalar e estrito). Conclusões: Os presentes achados suportam a utilidade da CESD-R e sugerem sua validade para aplicação na população brasileira.


Assuntos
Depressão , Análise Fatorial , Comportamento Exploratório
20.
Artigo em Português | LILACS, BDENF - Enfermagem, SaludCR | ID: biblio-1384815

RESUMO

Resumo Objetivo: O objetivo deste artigo foi avaliar os impactos emocionais e fisiológicos do distanciamento social durante a pandemia da COVID-19. Metodologia: Participaram 238 indivíduos de ambos os sexos e de diferentes faixas etárias que estavam em isolamento social durante a pandemia da COVID-19 e utilizou-se como instrumento de coleta de dados um questionário. Resultados: Dos participantes 65,5% (n= 156) eram do sexo feminino e 33,3% (n= 80) masculino. Nas emoções, 73,1% dos participantes concordaram que sentiam-se frequentemente desconfortáveis por causa do isolamento, 66% ansiosos/agitados, 66,8% dos participante irritados/estressados e 66.7% tristes/indispostos. Conclusão: Concluiu-se que os participantes tenderam a apresentar alterações emocionais em suas rotinas, sendo nocivas à sua saúde como um todo. Os aspectos emocionais e fisiológicos do distanciamento social durante a pandemia da COVID-19 possuem potencial significativo para impactar diretamente na saúde física e mental dos indivíduos


Abstract Objective: The objective of this paper was to assess the emotional and physiological impacts of social distancing during the COVID-19 pandemic. Method: About 238 individuals participated of both sexes and different age groups who were in social isolation, during the COVID-19 pandemic and was used as a data collection instrument with a questionnaire. Result: Of the participants, 65.5% (n = 156) were female and 33.3% (n = 80) male. In terms of emotions, 73.1% of participants agreed that they often feet uncomfortable due to isolation; 66% anxious/agitated; 66.8% irritated/stressed and 66.7% sad/unwell. Conclusion: Concluded that the participants tended to have emotional in their routines, wich are harmful to their health as a whole. The emotional and physiological aspects of social distancing during the COVID-19 pandemic have significant potential to directly impact on individuals physical and mental health.


Resumen Objetivo: El propósito de este artículo fue evaluar los impactos emocionales y fisiológicos del distanciamiento social durante la pandemia de La COVID-19. Método: Participaron 238 individuos de ambos sexos y diferentes grupos de edad que se encontraban en aislamiento social durante la pandemia de la COVID-19 y fue utilizado como instrumento de recolección de datos un cuestionario. Resultados: De los participantes, el 65.5% (n = 156) eran mujeres y el 33.3% (n = 80) hombres. En términos emocionales, el 73.1% de los participantes estuvo de acuerdo en que a menudo se sentían incómodos debido al aislamiento, 66% ansiosos/agitados; 66.8% irritados/estresados y 66.7% tristes/mal. Conclusión: Se concluyó que los participantes presentaron cambios emocionales en sus rutinas, que son perjudiciales para su salud en general. Los aspectos emocionales y fisiológicos del distanciamiento social durante la pandemia de La COVID-19 tienen un potencial significativo para impactar diretamente en la salud física y mental de las personas en distanciamiento social.


Assuntos
Isolamento Social , COVID-19 , Brasil , Saúde Pública
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA