RESUMEN
Organic fertilization is a cheaper and highly effective option for profitability and consequent improvement of the soil's physical, chemical, and biological structure. Thus, the objective of this work was to evaluate different types of fertilization: organic (poultry shed litter), mineral, and leaf path on yield parameters of lettuce grown in various types of planting. The treatments consisted of using two planting systems (P1 - Line and P2 - quincunxes) and mineral and organic fertilizers (A1 - mineral fertilization; A2 - mineral fertilization + leaf fertilization; A3 - organic fertilization with poultry shed litter and A4 - fertilization organic + mineral). The experimental units consisted of 36 and 52 plants, respectively, for treatments P1 and P2, and all central plants of the experimental unit were evaluated. Heart height, fresh mass, and leaf number were observed. The mineral and mineral + leaf treatments did not differentiate, either in line or in quincunxes. The treatment that stood out about the analyzed variables was the organic fertilization and quincunxes planting system, reflecting a more significant number of lettuce plants and better use of the area.
A adubação orgânica é uma opção mais barata e de grande eficácia em relação à rentabilidade e consequente melhoria da estrutura física, química e biológica do solo. Desta forma, o objetivo deste trabalho foi avaliar diferentes tipos de adubação: orgânica (cama de frango), mineral e via foliar sobre parâmetros de produtividade de alface cultivada em diferentes tipos de plantio. Os tratamentos consistiram na utilização de dois sistemas de plantio (P1 - Linha e P2 - Quincôncio) e adubações minerais e orgânicas (A1 - adubação mineral; A2 - adubação mineral + adubação foliar; A3 - adubação orgânica com cama de aviário e A4 - adubação orgânica + mineral). As unidades experimentais foram compostas por 36 e 52 plantas, respectivamente, para os tratamentos em linha e em quincôncio, sendo avaliadas todas as plantas centrais da unidade experimental. Foram observados a altura do coração, massa fresca e número de folhas. Os tratamentos mineral e mineral + foliar não diferenciaram entre si, tanto em linha quanto em quincôncio. O tratamento que se destacou em relação às variáveis analisadas foi aquele baseado na adubação orgânica e sistema de plantio em quincôncio, refletindo em maior número de pés de alface e melhor aproveitamento da área.
Asunto(s)
Producción de Cultivos , Lactuca/crecimiento & desarrollo , Lactuca/efectos de los fármacos , FertilizantesRESUMEN
PURPOSE: To investigate the connection between the clinical severity of chronic venous insufficiency (CVI) and the biomechanics of the calf muscle pump (CMP). MATERIAL AND METHODS: Through a cross-sectional observational study, we analyzed women on the age range between 30 and 80 years with chronic venous insufficiency, stratified according to the clinical classification. Ninety-nine women were assessed and classified into groups with different levels of severity: C1 (n = 22); C2 (n = 22); C3 (n = 22); C4 (n = 22); C5 (n = 8); C6 (n = 3). The main purpose was to investigate the strength of the calf muscle pump through total work (TW) and peak torque (PT), and the range of motion (ROM) of the ankle joint. For a secondary analysis, the fatigue index was assessed. All results were run through the Humac®/NORMT isokinetic dynamometer to obtain the data. RESULTS: Our findings pointed out that as the clinical severity of CVI increases, there is a reduction on the PT, the TW, the maximum active ROM and the ROM at 120°/sec. As severity increased, there was a reduction of 24Nm in the TW at 30°/sec.and a reduction of 3Nm in the PT at 30°/sec. OUTCOMES: When increased, clinical severity of CVI may trigger downgrading in the strength of the CMP and the ROM in the ankle. These findings are of relevance to the clinician, since through these findings, individuals with venous insufficiency may be treated more precisely for each classification.
Asunto(s)
Insuficiencia Venosa , Humanos , Femenino , Adulto , Persona de Mediana Edad , Anciano , Anciano de 80 o más Años , Estudios Transversales , Insuficiencia Venosa/complicaciones , Insuficiencia Venosa/terapia , Articulación del Tobillo , Rango del Movimiento Articular/fisiología , MúsculosRESUMEN
This work aimed to evaluate the chemical composition, antioxidant and antimicrobial activities from crude extract and fractions from leaves of Eugenia uniflora Linn. The crude extract was obtained by turbo extraction and their fractions by partitioning. Chromatographic analysis were performed, and the antioxidant capacity was verified by two methods (DPPH⢠and ABTSâ¢+). The Minimal Inhibitory/Bactericidal Concentration were conducted against twenty-two bacteria, selecting five strains susceptible to extract/fractions and resistant to the antibiotics tested. Ampicillin, azithromycin, ciprofloxacin, and gentamicin were associated with Ethyl Acetate Fraction (EAF) against multidrug-resistant strains in modulatory and checkerboard tests. The chromatographic data showed gallic acid, ellagic acid, and myricitrin in crude extract, with enrichment in the EAF. The electron transfer activity demonstrated in the antioxidant tests is related to the presence of flavonoids. The Gram-positive strains were more susceptible to EAF, and their action spectra were improved by association, comprising Gram-negative bacilli. Synergisms were observed to ciprofloxacin and gentamicin against Pseudomonas aeruginosa colistin-resistant. The results demonstrate that the extract and enriched fraction obtained from the leaves of E. uniflora act as a promising natural alternative against multidrug-resistant bacteria.
Asunto(s)
Eugenia , Extractos Vegetales , Extractos Vegetales/farmacología , Extractos Vegetales/química , Antioxidantes , Eugenia/química , Pruebas de Sensibilidad Microbiana , Bacterias , Ciprofloxacina , GentamicinasRESUMEN
OBJECTIVE: To evaluate the clinical response of parasacral transcutaneous electrical neural stimulation (parasacral TENS) associated with urotherapy in children with primary monosymptomatic nocturnal enuresis (PMNE) compared to urotherapy alone. MATERIAL AND METHODS: This prospective controlled clinical trial enrolled 72 children over 5 years of age with PMNE. Children were randomly divided into two groups, control group (CG), treated with urotherapy and scapular stimulation, and experimental group (EG), treated with urotherapy and parasacral TENS. In both groups, 20 sessions were performed, 3 times weekly, for 20 min each, with 10 Hz frequency, 700 µS pulse width and intesity determinated by the patient threshold. The percentages of dry nights were analyzed for 14 days before treatment (T0), after the 20th session (T1), 15 (T2), 30 (T3), 60 (T4), and 90 (T5) days after the end of the sessions. Patients of both groups were followed with intervals of 2 weeks in the first month and monthly for three consecutive months. RESULTS: Twenty-eight enuretic children, 14 girls (50%) with a mean age of 9.09 ± 2.23 years completed the study. There was no difference in mean age between groups. Mean percentage of dry nights in EG at T0 was 36%, at T1 49%, at T2 54%, at T3 54%, at T4 54%, and 57% at T5; while in CG, these percentages were 28%, 39%, 37%, 35%, 36%, and 36%, respectively. CONCLUSIONS: Parasacral TENS associated with urotherapy improves the percentage of dry nights in children with PMNE, although no patient had complete resolution of symptoms in this study.
Asunto(s)
Enuresis , Enuresis Nocturna , Estimulación Eléctrica Transcutánea del Nervio , Niño , Femenino , Humanos , Estudios Prospectivos , Frecuencia Cardíaca , Enuresis Nocturna/terapiaRESUMEN
Objetivo: relatar a experiência de graduandos em Enfermagem e Medicina na elaboração e divulgação de um vídeo motivacional como estratégia de promoção da saúde mental de estudantes universitários.Métodos: relato de experiência acerca da construção e divulgação de um vídeo produzido por discentes da Universidade Federal do Piauí, em setembro de 2019, voltado à promoção dobem-estar psicológico e emocional do público-alvo universitário. A temática escolhida englobou a valorização da vida, abordada na campanha "Setembro Amarelo". Realizou-se uma pesquisa na literatura científica sobre as principais demandas psicológicas de universitários, em seguida, foram selecionados seis discentes com histórias de vida inspiradoras e seguiu-se para as etapasde criação do conteúdo, filmagens e divulgação do produto audiovisual.Resultados: os depoimentos trataram sobre as vivências pregressas à entrada na universidade, desafios na graduação, dificuldades financeiras, conquistas e superações. A experiência na construção do vídeo motivacional permitiu contemplar o quão particulares e diversos são os obstáculos e as superações para a formação no ensino superior. Conclusão: a elaboração do vídeo pelos universitários demonstrou-se uma experiência exitosa, pois transmitiu na película exemplos de apoio mútuo entre discentes que compartilham de demandas psicológicas semelhantes, com relatos de desafios e conquistas em prol da formação universitária
Objective: to report the experience of undergraduate students in Nursing and Medicine in the elaboration and dissemination of a motivational video as a strategy to promote the mental health of university students.Methods:this is anexperience report about the construction and dissemination of a video produced by students of the Federal University of Piauí, in September 2019, that aimed at promoting the psychological and emotional well-being of the university target audience. The theme chosen encompassed the valorization of life, addressed in the campaign "Yellow September". The research was carried out in the scientific literature on the main psychological demands of university students, then six students with inspiring life stories were selected and followed by the stages of content creation, filming and dissemination of the audiovisual product. Results: the statements dealt with the experiences before entering the university, challenges in graduation, financial difficulties, achievements and overcoming. The experience in the construction of motivational video allowed us to contemplate how particular and diverse are the obstacles and overcoming for training in higher education. Conclusion: the preparation of the video by the university students proved to bea successful experience because it transmitted in the film examples of mutual support among students who share similar psychological demands, with reports of challenges and achievements in favor of university education.
Asunto(s)
Recursos Audiovisuales , Estudiantes , Salud Mental , Tecnología Culturalmente ApropiadaRESUMEN
O mapa apresenta uma visão geral das evidências sobre os efeitos das Plantas Medicinais Brasileiras para desfechos em saúde. A partir de uma ampla busca bibliográfica foram incluídos no mapa 214 estudos de revisão sistemática. Todos os estudos foram avaliados, caracterizados e categorizados por um grupo de pesquisadores de Laboratório de Tecnologia de Produtos Naturais (LTPN) da Faculdade de Farmácia da Universidade Federal Fluminense. Principais Achados: â As revisões avaliaram o efeito de intervenções com 69 tipos de plantas organizadas em 4 categorias: cultivadas, nativas, exóticas e introduzidas no Brasil. â As intervenções foram associadas a 130 desfechos de saúde organizados em 17 grupos: Bem-Estar, Vitalidade e Qualidade de Vida, Câncer, Condições Patológicas, Dermatopatias, Doenças Cardiovasculares, Doenças Nutricionais e Metabólicas, Doenças Respiratórias, Doenças Reumáticas, Doenças Urogenitais, Dor, Fatores Biológicos, Gastroenteropatias e Hepatopatias, Indicadores Psicológicos e Comportamentais, Indicadores Metabólicos e Fisiológicos, Saúde Mental, Saúde Bucal e Saúde Reprodutiva. â No total foram 465 associações entre intervenções (as plantas) e desfechos de saúde, com destaque para as plantas cultivadas (251 associações, 54%). â O grupo dos desfechos "Saúde Mental" foi o que recebeu mais associações (66 associações, 14%), seguido do grupo "Saúde Bucal" (42 associações, 9%). â Quanto aos desfechos, destaque para: Transtornos de Ansiedade (20 associações), Demência (16 associações), Diabetes Mellitus (17 associações) e Distúrbios Menstruais (15 associações). â Dentre as plantas, destaque para: Ginkgo biloba (76 associações), Aloe Vera (50), Zingiber officinale (39), Panax ginseng (28) e Curcuma longa (23). Implicações para a prática e pesquisa: â Considerando o efeito das intervenções para os desfechos, os estudos reportaram efeito positivo ou potencialmente positivo para a maioria (68%) das associações (181 associações com efeito positivo e 137 com efeito potencialmente positivo). â Destaque para os efeitos positivos ou potencialmente positivos reportados nas intervenções com Ginkgo biloba para os desfechos: Demência, Doença de Alzheimer e Desempenho Cognitivo (8, 7 e 7 associações respectivamente). â Em 87 associações foi reportado "sem efeito" da intervenção para o desfecho (19,7%). â Foi reportado efeito inconclusivo para uma pequena parte das associações (9%), que merece mais pesquisas. Nenhum efeito negativo ou potencialmente negativo foi reportado. O efeito não foi informado para 19 associações. â Note-se que essa lista é dinâmica, podendo mudar com a publicações de novos estudos.
The map provides an overview of the evidence on the effects of Brazilian Medicinal Plants on health outcomes. Based on an extensive literature search, the map includes 214 systematic review studies. All studies were assessed, characterized, and categorized by a group of researchers from the Laboratory of Natural Product Technology (LTPN) at the Faculty of Pharmacy of the Federal Fluminense University. Key Findings: - The reviews evaluated the effects of interventions using 69 types of plants organized into 4 categories: cultivated, native, exotic, and introduced to Brazil. - The interventions were associated with 130 health outcomes organized into 17 groups: Well-being, Vitality and Quality of Life, Cancer, Pathological Conditions, Dermatopathies, Cardiovascular Diseases, Nutritional and Metabolic Diseases, Respiratory Diseases, Rheumatic Diseases, Urogenital Diseases, Pain, Biological Factors, Gastroenteropathies and Hepatopathies, Psychological and Behavioral Indicators, Metabolic and Physiological Indicators, Mental Health, Oral Health, and Reproductive Health. - In total, there were 465 associations between interventions (plants) and health outcomes, with a significant emphasis on cultivated plants (251 associations, 54%). - The "Mental Health" group received the most associations (66 associations, 14%), followed by the "Oral Health" group (42 associations, 9%). - Notable health outcomes included Anxiety Disorders (20 associations), Dementia (16 associations), Diabetes Mellitus (17 associations), and Menstrual Disorders (15 associations). - Among the plants, notable ones included Ginkgo biloba (76 associations), Aloe Vera (50), Zingiber officinale (39), Panax ginseng (28), and Curcuma longa (23). Implications for Practice and Research: - Considering the effects of interventions on health outcomes, the studies reported a positive or potentially positive effect for the majority (68%) of the associations (181 associations with a positive effect and 137 with a potentially positive effect); - Noteworthy are the positive or potentially positive effects reported for interventions with Ginkgo biloba on the outcomes of Dementia, Alzheimer's Disease, and Cognitive Performance (8, 7, and 7 associations, respectively); - In 87 associations, the intervention was reported to have "no effect" on the outcome (19.7%); - An inconclusive effect was reported for a small portion of the associations (9%), indicating a need for further research. No negative or potentially negative effects were reported. The effect was not reported for 19 associations; - It should be noted that this list is dynamic and may change with the publication of new studies.
Asunto(s)
Plantas Medicinales , Resultado del Tratamiento , Enfermedades Respiratorias , Enfermedades de la Piel , Terapias Complementarias , Brasil , Enfermedades Cardiovasculares , Salud Mental , Fitoterapia , Enfermedades Nutricionales y MetabólicasRESUMEN
P2X7 receptor promotes inflammatory response and neuropathic pain. New drugs capable of impairing inflammation and pain-reducing adverse effects extracted from plant extracts have been studied. Physalis angulate L. possesses traditional uses and exhibits antiparasitic, anti-inflammatory, antimicrobial, antinociceptive, antimalarial, antileishmanial, immunosuppressive, antiasthmatic. diuretic, and antitumor activities. The most representative phytochemical constituents identified with medicinal importance are the physalins and withanolides. However, the mechanism of anti-inflammatory action is scarce. Although some physalins and withanolides subtypes have anti-inflammatory activity, only four physalins subtypes (B, D, F, and G) have further studies. Therefore, we evaluated the crude ethanolic extract enriched with physalins B, D, F, and G from P. angulata leaves, a pool containing the physalins B, D, F, G, and the physalins individually, as P2X7 receptor antagonists. For this purpose, we evaluated ATP-induced dye uptake, macroscopic currents, and interleukin 1-ß (IL-1ß) in vitro. The crude extract and pool dose-dependently inhibited P2X7 receptor function. Thus, physalin B, D, F, and G individually evaluated for 5'-triphosphate (ATP)-induced dye uptake assay, whole-cell patch-clamp, and cytokine release showed distinct antagonist levels. Physalin D displayed higher potency and efficacy than physalin B, F, and G for all these parameters. In vivo mice model as ATP-induced paw edema was potently inhibited for physalin D, in contrast to physalin B, F, and G. ATP and lipopolysaccharide (LPS)-induced pleurisy in mice were reversed for physalin D treatment. Molecular modeling and computational simulation predicted the intermolecular interactions between the P2X7 receptor and physalin derivatives. In silico results indicated physalin D and F as a potent allosteric P2X7 receptor antagonist. These data confirm physalin D as a promisor source for developing a new P2X7 receptor antagonist with anti-inflammatory action.
Asunto(s)
Lesión Pulmonar Aguda/tratamiento farmacológico , Physalis/química , Extractos Vegetales/farmacología , Secoesteroides/farmacología , Lesión Pulmonar Aguda/fisiopatología , Animales , Antiinflamatorios/administración & dosificación , Antiinflamatorios/aislamiento & purificación , Antiinflamatorios/farmacología , Simulación por Computador , Modelos Animales de Enfermedad , Relación Dosis-Respuesta a Droga , Células HEK293 , Humanos , Masculino , Ratones , Modelos Moleculares , Extractos Vegetales/administración & dosificación , Hojas de la Planta , Antagonistas del Receptor Purinérgico P2X/administración & dosificación , Antagonistas del Receptor Purinérgico P2X/aislamiento & purificación , Antagonistas del Receptor Purinérgico P2X/farmacología , Receptores Purinérgicos P2X7/efectos de los fármacos , Secoesteroides/aislamiento & purificaciónRESUMEN
ETHNOPHARMACOLOGICAL RELEVANCE: Ilex paraguariensis St. Hil. (Aquifoliaceae) is a medicinal plant widely used by South American populations for centuries and is popularly attributed to stimulating and detoxifying properties. Nowadays, their consume traditionally occurs through three different beverages: chimarrão, terere and mate-tea. AIM OF THE STUDY: Although its composition and properties are well studied, literature lacks work comparing the potential of their extracts obtained by a legitimate preparation mode of their popular beverages. Therefore, the purpose of this research is to investigate changes in chemical composition, antioxidant activity, anti-inflammatory efficacy and anxiolytic effect from lyophilized aqueous extracts obtained simulating the legitimate popular preparation mode of chimarrão, terere and mate-tea. MATERIALS AND METHODS: In this work, were investigated differences related to preparation technology and dry material used through chemical composition analysis, with the lyophilized aqueous extracts obtained simulating the chimarrão, terere and mate-tea preparation. The chemical composition analysis comprises the total soluble phenolics content, chemical profiles by HPLC-ESI-MS/MS, and quantitative component detection by HPLC-UV/DAD. Moreover, evaluations of comparative antioxidant activity of the extracts (DPPH and ORACFL assays), anti-inflammatory efficacy and anxiolytic effect were performed in vivo. RESULTS: Our results showed that chimarrão extracts presented a richer composition in terms of phenolic compounds and purine alkaloids, and better antioxidant activity when compared to the other extracts. In pleurisy test, all products showed anti-inflammatory properties in the dose of 60 mg/kg. In the anxiolytic evaluation, although all extracts presented some effect, chimarrão and terere were better than mate-tea in general. No sign of toxicity was observed. CONCLUSIONS: Our findings support that the beverage made as chimarrão has the best composition and the most promising properties overall.
Asunto(s)
Ansiolíticos/farmacología , Antiinflamatorios/farmacología , Antioxidantes/farmacología , Bebidas/análisis , Ilex paraguariensis/química , Animales , Ansiolíticos/química , Antiinflamatorios/química , Antioxidantes/química , Conducta Animal/efectos de los fármacos , Movimiento Celular/efectos de los fármacos , Femenino , Leucocitos/efectos de los fármacos , Ratones , Extractos Vegetales/química , Extractos Vegetales/farmacologíaRESUMEN
Endothelial dysfunction is a well-known component of the pathophysiology of heart failure (HF), with proven prognostic value. Dietary supplementation with whey protein (WP) has been widely used to increase skeletal muscle mass, but it also has vascular effects, which are less understood. This study aimed to evaluate the effects of WP supplementation on the systemic microvascular function of HF patients. This was a blinded, randomized, placebo-controlled clinical trial that evaluated the effects of 12-week WP dietary supplementation on systemic microvascular function, in patients with HF New York Heart Association (NYHA) classes I/II. Cutaneous microvascular flow and reactivity were assessed using laser speckle contrast imaging, coupled with pharmacological local vasodilator stimuli. Fifteen patients (aged 64.5±6.2 years, 11 males) received WP supplementation and ten patients (aged 68.2±8.8 years, 8 males) received placebo (maltodextrin). The increase in endothelial-dependent microvascular vasodilation, induced by skin iontophoresis of acetylcholine, was improved after WP (P=0.03) but not placebo (P=0.37) supplementation. Moreover, endothelial-independent microvascular vasodilation induced by skin iontophoresis of sodium nitroprusside, was also enhanced after WP (P=0.04) but not placebo (P=0.42) supplementation. The results suggested that dietary supplementation with WP improved systemic microvascular function in patients with HF.
Asunto(s)
Insuficiencia Cardíaca , Vasodilatación , Anciano , Suplementos Dietéticos , Endotelio Vascular , Insuficiencia Cardíaca/tratamiento farmacológico , Humanos , Masculino , Microcirculación , Persona de Mediana Edad , Proyectos Piloto , Piel , Vasodilatadores/farmacología , Proteína de Suero de Leche/farmacologíaRESUMEN
Ethanol extract of mango seeds (EEMS) are composed of several polyphenolic compounds with considerable in vitro antioxidant activity that can be used in pig feed and may contribute positively to meat quality characteristics. The aim of this study was to evaluate the effect of EEMS as a source of antioxidants in growing-finishing pig diets on meat quality, lipid stability, sulfhydryl groups non-proteinaceous (SG-NP), total phenolic compounds, total antioxidant potential and total antioxidant activity of meat after 1 and 7â¯days of refrigeration storage. Thirty-two (60-day-old) barrows, weighing 20.20⯱â¯1.34â¯kg, were used in a randomized block design consisting of eight animals with four treatment regimens. Treatments consisted of: Controlâ¯=â¯no dietary antioxidant; butylated hydroxytoluene (BHT)â¯=â¯diet with 200â¯ppm BHT; EEMS200â¯=â¯diet with 200â¯ppm EEMS; EEMS400â¯=â¯diet with 400â¯ppm EEMS. At 145â¯days of age and average weight of 95.47⯱â¯6.19â¯kg, the animals were slaughtered and loin samples were collected and frozen before for qualitative analysis and evaluation of the effect of subsequent storage for 1 or 7â¯days at 8⯰C on lipid stability, SG-NP, phenolic compounds, total antioxidant capacity and total antioxidant activity Meat from animals fed EEMS400 diet showed lower cooking loss (Pâ¯<â¯0.0001) and higher non-protein sulfhydryl groups, phenolic compounds and total antioxidant activity at both 1 and 7â¯days of storage (Pâ¯<â¯0.0001) compared to the other treatments. Greater antioxidant capacity was observed at 1â¯day storage in the meat of animals that consumed EEMS regardless of concentration when compared to the control group (Pâ¯<â¯0.01). The dietary inclusion of EEMS to pig diets is more effective at 400â¯ppm in improving meat quality after cooking and antioxidant parameters of pork.
Asunto(s)
Mangifera , Carne de Cerdo , Carne Roja , Alimentación Animal/análisis , Animales , Antioxidantes , Dieta/veterinaria , Etanol , Carne/análisis , Extractos Vegetales/farmacología , PorcinosRESUMEN
This study evaluated a battery of pain-stimulated, pain-depressed, and pain-independent behaviors for preclinical pharmacological assessment of candidate analgesics in mice. Intraperitoneal injection of dilute lactic acid (IP acid) served as an acute visceral noxious stimulus to produce four pain-related behaviors in male and female ICR mice: stimulation of 1) stretching, 2) facial grimace, 3) depression of rearing, and 4) depression of nesting. Additionally, nesting and locomotion in the absence of the noxious stimulus were used to assess pain-independent drug effects. These six behaviors were used to compare effects of two mechanistically distinct but clinically effective positive controls (ketoprofen and oxycodone) and two negative controls that are not clinically approved as analgesics but produce either general motor depression (diazepam) or motor stimulation (amphetamine). We predicted that analgesics would alleviate all IP acid effects at doses that did not alter pain-independent behaviors, whereas negative controls would not. Consistent with this prediction, ketoprofen (0.1-32 mg/kg) produced the expected analgesic profile, whereas oxycodone (0.32-3.2 mg/kg) alleviated all IP acid effects except depression of rearing at doses lower than those that altered pain-independent behaviors. For the negative controls, diazepam (1-10 mg/kg) failed to block IP acid-induced depression of either rearing or nesting and only decreased IP acid-stimulated behaviors at doses that also decreased pain-independent behaviors. Amphetamine (0.32-3.2 mg/kg) alleviated all IP acid effects but only at doses that also stimulated locomotion. These results support utility of this model as a framework to evaluate candidate-analgesic effects in a battery of complementary pain-stimulated, pain-depressed, and pain-independent behavioral endpoints. SIGNIFICANCE STATEMENT: Preclinical assays of pain and analgesia often yield false-positive effects with candidate analgesics. This study used two positive-control analgesics (ketoprofen, oxycodone) and two active negative controls (diazepam, amphetamine) to validate a strategy for distinguishing analgesics from nonanalgesics by profiling drug effects in a battery of complementary pain-stimulated, pain-depressed, and pain-independent behaviors in male and female mice.
Asunto(s)
Analgésicos/toxicidad , Conducta Animal , Movimiento , Dolor/tratamiento farmacológico , Anfetamina/administración & dosificación , Anfetamina/uso terapéutico , Anfetamina/toxicidad , Analgésicos/administración & dosificación , Analgésicos/uso terapéutico , Animales , Diazepam/administración & dosificación , Diazepam/uso terapéutico , Diazepam/toxicidad , Evaluación Preclínica de Medicamentos/métodos , Evaluación Preclínica de Medicamentos/normas , Reacciones Falso Negativas , Femenino , Cetoprofeno/administración & dosificación , Cetoprofeno/uso terapéutico , Cetoprofeno/toxicidad , Masculino , Ratones , Ratones Endogámicos ICR , Nivel sin Efectos Adversos Observados , Oxicodona/administración & dosificación , Oxicodona/uso terapéutico , Oxicodona/toxicidadRESUMEN
A fototerapia é um método eficaz, não invasivo de alto impacto, sem restrições enquanto a sua utilização independente da idade gestacional, comorbidades ou nível de pigmentação cutânea, tratamento utilizado para redução de bilirrubina usado devido a sua alta eficiência e ausência de efeitos adversos. Analisar as evidências científicas publicadas sobre as indicações da fototerapia em recémnascidos com icterícia. Trata de uma revisão bibliográfica do método revisão integrativa de literatura, realizado no período compreendido entre os meses de janeiro a abril de 2021. A busca efetuou-se, através da BVS, utilizando as bases de dados LILACS, MEDLINE, e por meio do SCIELO. Aderindo-se através dos descritores/palavras chaves: "Fototerapia", "Icterícia Neonatal", "Terapêutica", "Diagnóstico", "Cuidados de Enfermagem", combinados entre si com o operador booleano "AND". Os profissionais da equipe de enfermagem são responsáveis pelo recebimento e preparação do recém-nascido para a terapêutica, bem como, preparam os aparelhos que serão usados para a fototerapia, como os focos de luz, as incubadoras, entre outros. Evidenciou-se que a fototerapia é utilizada como forma de tratamento mais eficaz no controle da hiperbilirrubinemia. Sendo indicada nas doenças hemolíticas ou não, incompatibilidade fator Rh e grupo ABO. Embora seja frequente o uso da técnica em neonatos, deve-se enquanto profissionais se atentar aos sinais e sintomas, como também os fatores de risco no manejo da técnica, intervir elaborando uma rotina para o controle e manutenção dos equipamentos, observando criteriosamente o tipo de aparelhos utilizados e se atentar a distância ideal das lâmpadas sob o RN, avaliando sempre possíveis complicações durante o tratamento.
Phototherapy is an effective, non-invasive, high-impact method, with no restrictions as long as its use regardless of gestational age, comorbidities or skin pigmentation level, treatment used to reduce bilirubin used due to its high efficiency and absence of adverse effects. Analyze the published scientific evidence on the indications for phototherapy in newborns with jaundice. This is a bibliographic review of the integrative literature review method, carried out between January and April 2021. The search was carried out, through the VHL, using the LILACS, MEDLINE databases, and through SCIELO . Adhering to the descriptors / keywords: "Phototherapy", "Neonatal Jaundice", "Therapeutics", "Diagnosis", "Nursing Care", combined with the Boolean operator "AND". The professionals of the nursing team are responsible for receiving and preparing the newborn for therapy, as well as preparing the devices that will be used for phototherapy, such as spotlights, incubators, among others. It became evident that phototherapy is used as the most effective treatment for controlling hyperbilirubinemia. Being indicated in hemolytic diseases or not, incompatibility Rh factor and ABO group. Although the technique is frequently used in neonates, professionals should pay attention to the signs and symptoms, as well as the risk factors in the management of the technique, to intervene by elaborating a routine for the control and maintenance of equipment, carefully observing the type of equipment. devices used and pay attention to the ideal distance of the lamps under the NB, always evaluating possible complications during treatment.
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Humanos , Recién Nacido , Fototerapia , Ictericia Neonatal , Brasil , Bibliotecas Digitales , Atención de EnfermeríaRESUMEN
Endothelial dysfunction is a well-known component of the pathophysiology of heart failure (HF), with proven prognostic value. Dietary supplementation with whey protein (WP) has been widely used to increase skeletal muscle mass, but it also has vascular effects, which are less understood. This study aimed to evaluate the effects of WP supplementation on the systemic microvascular function of HF patients. This was a blinded, randomized, placebo-controlled clinical trial that evaluated the effects of 12-week WP dietary supplementation on systemic microvascular function, in patients with HF New York Heart Association (NYHA) classes I/II. Cutaneous microvascular flow and reactivity were assessed using laser speckle contrast imaging, coupled with pharmacological local vasodilator stimuli. Fifteen patients (aged 64.5±6.2 years, 11 males) received WP supplementation and ten patients (aged 68.2±8.8 years, 8 males) received placebo (maltodextrin). The increase in endothelial-dependent microvascular vasodilation, induced by skin iontophoresis of acetylcholine, was improved after WP (P=0.03) but not placebo (P=0.37) supplementation. Moreover, endothelial-independent microvascular vasodilation induced by skin iontophoresis of sodium nitroprusside, was also enhanced after WP (P=0.04) but not placebo (P=0.42) supplementation. The results suggested that dietary supplementation with WP improved systemic microvascular function in patients with HF.
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Humanos , Masculino , Persona de Mediana Edad , Anciano , Vasodilatación , Insuficiencia Cardíaca/tratamiento farmacológico , Piel , Vasodilatadores/farmacología , Endotelio Vascular , Proyectos Piloto , Suplementos Dietéticos , Proteína de Suero de Leche/farmacología , MicrocirculaciónRESUMEN
The dietary inclusion of feed additives to improve the carcass characteristics of the final product is of great importance for the pork production chain. The aim of our study was to evaluate the effects of the association of ractopamine (RAC) and conjugated linoleic acid (CLA) on the performance traits of finishing pigs during the last 26 days prior to slaughter. In total, 810 commercial hybrid barrows were used. Animals were distributed among treatments according to a randomised block design in a 3 × 3 factorial arrangement, with three RAC levels (0, 5 or 10 ppm) and three CLA levels (0, 0.3 or 0.6%). Pigs fed the diet with 5 ppm RAC had higher average daily feed intake (ADFI) (2.83 kg; P < 0.05) when compared with those fed 10 ppm RAC and the control diet (2.75 and 2.74 kg, respectively). Lower ADFI values (P < 0.01) were observed with the diets containing CLA compared with the control diet with no CLA (2.73 and 2.75 v. 2.85 kg/day, respectively). The average daily weight gain of pigs fed 5 and 10 ppm RAC was +148 and +173 g/dayhigher (P < 0.001), respectively, than those fed the control diet. Dietary RAC levels influenced (P < 0.001) feed conversion ratio (FCR), which was reduced as RAC levels increased, with the pigs fed 10, 5 and 0 ppm RAC presenting FCR values of 2.57, 2.71 and 3.05, respectively. FCR also improved (P < 0.05) with the inclusion of 0.6% CLA relative to the control diet (2.70 v. 2.84, respectively). There was a significant interaction between CLA × RAC levels (P < 0.01) for final BW, loin eye area (LEA) (P < 0.05) and backfat thickness (BT) (P < 0.05). The treatments containing 10 ppm RAC + 0.6% or 0.3% CLA increased LEA and reduced BT. In conclusion, the level of 10 ppm inclusion of RAC increased the overall performance parameters of pigs and therefore improved production efficiency. The combined use of RAC and CLA promoted a lower feed conversion ratio as well as better quantitative carcass traits, as demonstrated by the higher LEA and lower BT. The dietary inclusion of CLA at 0.3% improved feed efficiency, however, without affecting LEA or BT yields.
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Suplementos Dietéticos/análisis , Ácidos Linoleicos Conjugados/farmacología , Fenetilaminas/farmacología , Carne Roja/normas , Porcinos/fisiología , Alimentación Animal/análisis , Animales , Composición Corporal/efectos de los fármacos , Dieta/veterinaria , Masculino , Porcinos/crecimiento & desarrollo , Aumento de Peso/efectos de los fármacosRESUMEN
Honeybees Apis mellifera are important pollinators of wild plants and commercial crops. For more than a decade, high percentages of honeybee colony losses have been reported worldwide. Nutritional stress due to habitat depletion, infection by different pests and pathogens and pesticide exposure has been proposed as the major causes. In this study we analyzed how nutritional stress affects colony strength and health. Two groups of colonies were set in a Eucalyptus grandis plantation at the beginning of the flowering period (autumn), replicating a natural scenario with a nutritionally poor food source. While both groups of colonies had access to the pollen available in this plantation, one was supplemented with a polyfloral pollen patty during the entire flowering period. In the short-term, colonies under nutritional stress (which consumed mainly E. grandis pollen) showed higher infection level with Nosema spp. and lower brood and adult bee population, compared to supplemented colonies. On the other hand, these supplemented colonies showed higher infection level with RNA viruses although infection levels were low compared to countries were viral infections have negative impacts. Nutritional stress also had long-term colony effects, because bee population did not recover in spring, as in supplemented colonies did. In conclusion, nutritional stress and Nosema spp. infection had a severe impact on colony strength with consequences in both short and long-term.
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Fenómenos Fisiológicos Nutricionales de los Animales/fisiología , Abejas/microbiología , Abejas/fisiología , Animales , Colapso de Colonias , Eucalyptus , Nosema , Polen , Estrés Fisiológico , Trypanosomatina/genética , Trypanosomatina/patogenicidad , Varroidae/patogenicidadRESUMEN
There have been few studies realized that evaluate the effects of adopting different nutritional systems in more than one phase of cattle production on carcass and meat characteristics. This study was realized to evaluate carcass and meat characteristics from bulls submitted to different nutritional systems during two production phases. The experiment was conducted at Figueira's farm during two production phases: I (cow-calf) - 80 calves (99.6±2.72 days of age and 109.7±2.99 kg of BW) with their mothers were randomly assigned into two supplemental diets: cow-calf mineral supplement (n=40) or cow-calf creep-feeding (n=40); II (stocker) - the same 80 calves (201.2±2.11 days of age and 190.2±3.37 kg of BW) were redistributed into two production systems: stocker pasture (n=40) or stocker feedlot (SF; n=40). After, all 80 animals were kept on a pasture system (III) for 290 days, and then finished in a feedlot system (IV) for more 33 days. Then, they were slaughtered at an average 764.2±3.06 days of age and at 499.2±3.33 kg of final BW. After slaughter, the average daily gain was calculated, and the carcass and meat characteristics were measured. The statistical model design used was completely randomized in a 2×2 factorial arrangement (two treatment groups on cow-calf phase and two treatment groups on stocker phase). The single effects between the groups in each phase and the interactions between both phases (cow-calf v. stocker) were analyzed. The results were compared by Fisher's test, using the R statistical software. A cow-calf by stocker phases interaction occurred for carcass conformation and fiber diameter. For single effects, the greatest influences observed were in the stocker phase. The feedlot group was slaughtered 17 days earlier, with greater final BW (3.8%), hot carcass weight (5.7%), average daily gain (6.9%), dressing percentage (1.8%), carcass length (1.8%), carcass width (1.5%), longissimus muscle area (4.8%) and muscle depth (2.3%) than pasture group. The SF group also had influence on fat color; showing higher L* and lower b* values. These results reveal that bulls reared in feedlot at the stocker phase have higher muscle development and that the stocker phase has the greatest potential to influence carcass characteristics and meat quality.
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Bovinos/fisiología , Dieta/veterinaria , Carne/análisis , Estado Nutricional , Crianza de Animales Domésticos , Animales , Brasil , MasculinoRESUMEN
The earliest stages of embryo development are deeply influenced by reactive oxygen species (ROS), byproducts of the mitochondrial oxygen metabolism that play a key role as messengers in normal cell signal transduction and cell cycling. Despite its positive roles, the imbalance caused by the excess of ROS and an inefficient antioxidant system leads to oxidative stress, with negative consequences to the cell such as DNA damage, metabolic changes, mitochondrial stress and cell death. In the present work, crocetin - a natural antioxidant - was added to the culture media of bovine embryos to evaluate the efficiency of its antioxidant capability during embryo culture. Oocytes were in vitro matured (IVM) and fertilized according to standard protocols. Embryos were cultured at 38.5⯰C under humidified air with 5% CO2, 7% O2, and 90% N2 in Synthetic Oviduct Fluid (SOF) medium supplemented with amino acids and either 5% of FBS (SOFaa) (control group) or SOFaa supplemented with 1â¯â¯µM crocetin (crocetin group). After 5 days from the beginning of in vitro culture (IVC) (day 5 - D5), embryos were transferred to individual drops of culture media. At day 7 (D7), embryos were assessed by means of blastocyst rates, morphophysiological analyzes (total cell number, ROS and mitochondrial activity levels), transcript quantitation of 47 genes and metabolomic evaluation of the culture media by Raman spectroscopy. In the crocetin group blastocyst rates were higher and embryos had increased total cell number and decreased intracellular levels of ROS. These embryos also had upregulation of genes related with response to stress and lipid metabolism (ATF4, BAX, FOXO3, GADD45A, GPX1, GPX4, HSF1, SOD2, ACACA, SREBF1 and SREBF2). Raman spectroscopy corroborated these results indicating more active lipid and amino acid production in this group. The absence of crocetin in the culture media resulted in higher ROS level, as well as up regulation of genes related to DNA damage, stress response and energy metabolism (MORF4L2, SOD1, TXN, PFKP, PGK1 and PPARGC1A). In conclusion, crocetin supplementation during culture protects embryos from oxidative stress and influences the adaptive response to stress conditions, leading to an increase in both blastocyst yield and quality, as well as changes in transcriptomic and metabolic profile of in vitro produced bovine embryos.
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Blastocisto/efectos de los fármacos , Carotenoides/farmacología , Bovinos/embriología , Desarrollo Embrionario/efectos de los fármacos , Regulación del Desarrollo de la Expresión Génica/efectos de los fármacos , Transcriptoma , Animales , Antioxidantes/farmacología , Técnicas de Cultivo de Embriones/veterinaria , Vitamina A/análogos & derivadosRESUMEN
Melon (Cucumis melo L.) has high economic value and in recent years, its production has increased; however, part of the fruit is wasted. Usually, inedible parts such as peel and seeds are discarded during processing and consumption. Extracts of melon residues were prepared and their phenolic compounds, antioxidants and antiproliferative activities were evaluated. Total phenolic compounds were found in hydroethanolic, hydromethanolic, and aqueous extracts, especially for melon peel (1.016 mg gallic acid equivalent/100 g). Flavonoids total content found for melon peel aqueous extract was 262 µg of catechin equivalent (CA)/100 g. In all extracts of melon peel significant amounts of gallic acid, catechin, and eugenol were found. For total antioxidant capacity, reported as ascorbic acid equivalent, the hydroethanolic and hydromethanolic extracts in peels and hydromethanolic in seeds were 89, 74, and 83 mg/g, respectively. Different extracts of melon showed iron and copper ions chelating activity at different concentrations, especially melon peel aqueous extract, reaching values of 61% for iron and 84% for copper. The hydroethanolic extract of melon peel presented a significant ability for hydroxyl radicals scavenging (68%). To assess the antiproliferative potential in human cancer cell lines, such as kidney carcinoma, colorectal carcinoma, cervical adenocarcinoma and cervical carcinoma, MTT assay was performed. The proliferation was inhibited by 20-85% at extracts concentrations of 0.1-1.0 mg/mL in all cancer cell lines. The results suggest that melon residues extracts display a high antioxidant activity in in vitro assays and have effective biological activity against the growth of human tumor cells.
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Antineoplásicos Fitogénicos/farmacología , Antioxidantes/farmacología , Proliferación Celular/efectos de los fármacos , Cucurbitaceae/química , Extractos Vegetales/farmacología , Antineoplásicos Fitogénicos/aislamiento & purificación , Antioxidantes/aislamiento & purificación , Línea Celular Tumoral , Cromatografía Líquida de Alta Presión , Cromatografía en Capa Delgada , Flavonoides/aislamiento & purificación , Flavonoides/farmacología , Humanos , Fenoles/aislamiento & purificación , Fenoles/farmacología , Semillas/química , Taninos/aislamiento & purificación , Taninos/farmacologíaRESUMEN
INTRODUCTION: Early diagnosis is necessary for the success of the tuberculosis (TB) program. GOAL: To identify factors associated with diagnosis delay of TB in Huambo, Angola. MATERIAL AND METHODS: Cross-sectional study carried out in patients diagnosed with TB at the Huambo Anti-Tuberculosis Dispensary (ATD) in the period between October 2015 and January 2016. RESULTS: The 247 patients included in the analysis had a median age of 27 years and a median diagnosis delay of 64 days. In the univariate analysis, age, consumption of alcoholic beverages, living in a residence further than 10km from a healthcare unit, and looking for any other health unit than the emergency unit were associated with longer diagnosis delay. In the multivariate analysis model, to be between 30 and 44 years of age (p=0.018), to live in a residence more than 10km from a healthcare unit (p=0.006) and to turn to traditional medicine as the first healthcare option (p<0.001) were factors that led to greater time delay before diagnosis. CONCLUSIONS: In the Huambo province, age, distance to healthcare facility and the first healthcare service consulted were associated with diagnosis delay of TB.
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Context ⢠The treatment of pain in fibromyalgia (FM) has centered on pharmacotherapy and nonpharmacological treatment. The nondrug treatments for FM include the effects of far infrared radiation (FIR). Currently, FIR-emitting heat lamps and garments made of filaments (fibers) impregnated with FIR-emitting nanoparticles are being used to deliver thermal radiation effects. Objective ⢠The study intended to determine the benefits of a fabric coated with bioceramics for reducing pain in women with FM. Design ⢠The research team designed a randomized, controlled pilot study. Setting ⢠The study was conducted in the laboratory of the Department of Corporal Expression, University of Jaén (Jaén, Spain). Participants ⢠Thirty-nine female participants diagnosed with FM took part in the study. Intervention ⢠Participants were randomly assigned to an experimental (intervention) group (EG), n = 20, or a placebo group (PG), n = 19. The EG wore a shirt impregnated with bioceramics, and the PG dressed in a shirt without bioceramics. Both groups wore the shirts for 8 h/d for 60 d. Outcome Measures ⢠Participants were evaluated twice, at baseline and postintervention. The tests used were (1) a visual analogue scale (VAS) for pain, (2) the FM Impact Questionnaire (FIQ), and (3) the Short Form-12 health survey. The research team measured each participant's weight, height, and body mass index and evaluated their tender points. The research team also tracked participants' daily use of pain medications as a daily tablet intake. Results ⢠Postintervention, the women in the EG showed a significant reduction in pain: (1) on the VAS (P < .001), (2) on the measurement of tender points (P < .001), and (3) on the algometer score (P < .001), as well as (4) a significant reduction in FM symptoms on the FIQ (P = .005) and (5) a reduction in daily tablet intake (P < .001). No significant changes in the PG group were found. Significant differences existed between the groups for the VAS, the FIQ, tender points, and the algometer score in posttest evaluation (P < .05). Conclusions ⢠Regular use of garments impregnated with a bioceramic solution (1%) can be beneficial in reducing pain and the impact of FM for patients. The low cost and comfort of the clothing make the therapy easy to be applied as a complementary tool in the treatment of FM.