RESUMO
The latent potential of active ingredients derived from agro-industrial waste remains largely untapped and offers a wealth of unexplored resources. While these types of materials have applications in various fields, their ability to benefit human health needs to be further explored and investigated. This systematic review was conducted to systematically evaluate non-clinical studies that have investigated the biological effects of fractions, extracts and bioactive compounds from agro-industrial wastes and their potential therapeutic applications. Articles were selected via PubMed, Embase and Medline using the descriptors (by-products[title/abstract]) AND (agro-industrial[title/abstract]). The systematic review was registered in the International Prospective Register of Systematic Reviews (Prospero) under the number CRD42024491021. After a detailed analysis based on inclusion and exclusion criteria, a total of 38 articles were used for data extraction and discussion of the results. Information was found from in vitro and in vivo experiments investigating a variety of residues from the agro-industry. The studies investigated peels, pomace/bagasse, pulp, seeds, aerial parts, cereals/grains and other types of waste. The most studied activities include mainly antioxidant and anti-inflammatory effects, but other activities such as antimicrobial, cytotoxic, antiproliferative, antinociceptive, hypoglycemic, antihyperglycemic and anticoagulant effects have also been described. Finally, the studies included in this review demonstrate the potential of agro-industrial waste and can drive future research with a focus on clinical application.
Assuntos
Agricultura , Resíduos Industriais , Animais , Humanos , Agricultura/métodos , AntioxidantesRESUMO
BACKGROUND: This study evaluated the effects of concurrent isolated training (T) or training combined with the antioxidant N-acetylcysteine (NAC) on cardiac remodeling and oxidative stress in spontaneously hypertensive rats (SHR). METHODS: Six-month-old male SHR were divided into sedentary (S, n = 12), concurrent training (T, n = 13), sedentary supplemented with NAC (SNAC, n = 13), and concurrent training with NAC supplementation (TNAC, n = 14) groups. T and TNAC rats were trained three times a week on a treadmill and ladder; NAC supplemented groups received 120 mg/kg/day NAC in rat chow for eight weeks. Myocardial antioxidant enzyme activity and lipid hydroperoxide concentration were assessed by spectrophotometry. Gene expression of NADPH oxidase subunits Nox2, Nox4, p22 phox, and p47 phox was evaluated by real time RT-PCR. Statistical analysis was performed using ANOVA and Bonferroni or Kruskal-Wallis and Dunn. RESULTS: Echocardiogram showed concentric remodeling in TNAC, characterized by increased relative wall thickness (S 0.40 ± 0.04; T 0.39 ± 0.03; SNAC 0.40 ± 0.04; TNAC 0.43 ± 0.04 *; * p < 0.05 vs T and SNAC) and diastolic posterior wall thickness (S 1.50 ± 0.12; T 1.52 ± 0.10; SNAC 1.56 ± 0.12; TNAC 1.62 ± 0.14 * mm; * p < 0.05 vs T), with improved contractile function (posterior wall shortening velocity: S 39.4 ± 5.01; T 36.4 ± 2.96; SNAC 39.7 ± 3.44; TNAC 41.6 ± 3.57 * mm/s; * p < 0.05 vs T). Myocardial lipid hydroperoxide concentration was lower in NAC treated groups (S 210 ± 48; T 182 ± 43; SNAC 159 ± 33 *; TNAC 110 ± 23 *# nmol/g tissue; * p < 0.05 vs S, # p < 0.05 vs T and SNAC). Nox 2 and p22 phox expression was higher and p47 phox lower in T than S [S 1.37 (0.66-1.66); T 0.78 (0.61-1.04) *; SNAC 1.07 (1.01-1.38); TNAC 1.06 (1.01-1.15) arbitrary units; * p < 0.05 vs S]. NADPH oxidase subunits did not differ between TNAC, SNAC, and S groups. CONCLUSION: N-acetylcysteine supplementation alone reduces oxidative stress in untreated spontaneously hypertensive rats. The combination of N-acetylcysteine and concurrent exercise further decreases oxidative stress. However, the lower oxidative stress does not translate into improved cardiac remodeling and function in untreated spontaneously hypertensive rats.
Assuntos
Acetilcisteína , Hipertensão , NADPH Oxidases , Estresse Oxidativo , Ratos Endogâmicos SHR , Remodelação Ventricular , Animais , Masculino , Estresse Oxidativo/efeitos dos fármacos , Acetilcisteína/farmacologia , Remodelação Ventricular/efeitos dos fármacos , Hipertensão/fisiopatologia , Hipertensão/tratamento farmacológico , Hipertensão/metabolismo , NADPH Oxidases/metabolismo , NADPH Oxidases/genética , Ratos , Antioxidantes/farmacologia , Condicionamento Físico Animal , Modelos Animais de Doenças , NADPH Oxidase 2/metabolismo , NADPH Oxidase 2/genética , NADPH Oxidase 4/metabolismo , NADPH Oxidase 4/genética , Glicoproteínas de Membrana/metabolismo , Glicoproteínas de Membrana/genética , Miocárdio/metabolismo , Miocárdio/patologia , Peróxidos Lipídicos/metabolismo , Função Ventricular Esquerda/efeitos dos fármacos , Suplementos Nutricionais , Hipertrofia Ventricular Esquerda/fisiopatologia , Hipertrofia Ventricular Esquerda/prevenção & controle , Hipertrofia Ventricular Esquerda/metabolismoRESUMO
COVID-19, caused by the SARS-COV-2 virus, induces numerous immunological reactions linked to the severity of the clinical condition of those infected. The surface Spike protein (S protein) present in Sars-CoV-2 is responsible for the infection of host cells. This protein presents a high rate of mutations, which can increase virus transmissibility, infectivity, and immune evasion. Therefore, we propose to evaluate, using immunoinformatic techniques, the predicted epitopes for the S protein of seven variants of Sars-CoV-2. MHC class I and II epitopes were predicted and further assessed for their immunogenicity, interferon-gamma (IFN-γ) inducing capacity, and antigenicity. For B cells, linear and structural epitopes were predicted. For class I MHC epitopes, 40 epitopes were found for the clades of Wuhan, Clade 2, Clade 3, and 20AEU.1, Gamma, and Delta, in addition to 38 epitopes for Alpha and 44 for Omicron. For MHC II, there were differentially predicted epitopes for all variants and eight equally predicted epitopes. These were evaluated for differences in the MHC II alleles to which they would bind. Regarding B cell epitopes, 16 were found in the Wuhan variant, 14 in 22AEU.1 and in Clade 3, 15 in Clade 2, 11 in Alpha and Delta, 13 in Gamma, and 9 in Omicron. When compared, there was a reduction in the number of predicted epitopes concerning the Spike protein, mainly in the Delta and Omicron variants. These findings corroborate the need for updates seen today in bivalent mRNA vaccines against COVID-19 to promote a targeted immune response to the main circulating variant, Omicron, leading to more robust protection against this virus and avoiding cases of reinfection. When analyzing the specific epitopes for the RBD region of the spike protein, the Omicron variant did not present a B lymphocyte epitope from position 390, whereas the epitope at position 493 for MHC was predicted only for the Alpha, Gamma, and Omicron variants.
Assuntos
COVID-19 , SARS-CoV-2 , Glicoproteína da Espícula de Coronavírus , SARS-CoV-2/imunologia , SARS-CoV-2/genética , Humanos , Glicoproteína da Espícula de Coronavírus/imunologia , Glicoproteína da Espícula de Coronavírus/genética , Glicoproteína da Espícula de Coronavírus/química , COVID-19/imunologia , COVID-19/virologia , COVID-19/prevenção & controle , Brasil , Epitopos de Linfócito B/imunologia , Epitopos de Linfócito B/química , Epitopos/imunologia , Epitopos/química , Interferon gama/imunologia , Antígenos de Histocompatibilidade Classe II/imunologia , Antígenos de Histocompatibilidade Classe II/genéticaRESUMO
INTRODUCTION: Pulmonary rehabilitation (PR) is an intervention aimed at the comprehensive care of individuals with chronic respiratory diseases. Patients with chronic obstructive pulmonary disease (COPD) and asthma present low levels of physical fitness because they avoid physical exercises due to the fear of triggering recurrent symptoms. Wearable devices have been integrated into behavioral modification interventions for physical activity in PR protocols. Therefore, this review aims to identify how wearable devices are being utilized for monitoring chronic respiratory diseases in pulmonary rehabilitation programs. METHODS AND ANALYSIS: Searches will be conducted on Medline, Cochrane Central Register of Controlled Trials, Embase (CENTRAL), CINAHL and PEDro electronic databases, as well as a search in the grey literature. We will include baseline data from randomized clinical trials reporting the use of wearable devices for monitoring physical activity in protocols for pulmonary rehabilitation programs for chronic respiratory diseases. Studies that discuss only the development of algorithms or applications for the assessment of diseases or unavailable full texts will be excluded. The main reviewer will conduct the initial search and exclusion of duplicates, while two independent reviewers will select studies, extract data, and assess the methodological quality using the PEDro tool. PROSPERO REGISTRATION NUMBER: CRD42024504137.
Assuntos
Exercício Físico , Doença Pulmonar Obstrutiva Crônica , Revisões Sistemáticas como Assunto , Dispositivos Eletrônicos Vestíveis , Humanos , Doença Pulmonar Obstrutiva Crônica/reabilitação , Doença Crônica , Asma/reabilitação , Monitorização Fisiológica/instrumentação , Monitorização Fisiológica/métodosRESUMO
Numerous commercial tests for the serological diagnosis of COVID-19 have been produced in recent years. However, it is important to note that these tests exhibit significant variability in their sensitivity, specificity, and accuracy of results. Therefore, the objective of this study was to utilize bioinformatics tools to map SARS-CoV-2 peptides, with the goal of developing a new serological diagnostic test for COVID-19. Two peptides from the S protein and one from the N protein were selected and characterized in silico, chemically synthesized, and used as a serological diagnostic tool to detect IgM, IgG, and IgA anti-SARS-CoV-2 antibodies through the ELISA technique, confirmed as positive and negative samples by RT-qPCR or serology by ELISA. The results showed a sensitivity, specificity, Positive Predictive Value and Negative Predictive Value of 100% (p < 00001, 95% CI) for the proposed test. Although preliminary, this study brings proof-of-concept results that are consistent with the high-performance rates of the ELISA test when compared to other well-established methods for diagnosing COVID-19.
Assuntos
Anticorpos Antivirais , Teste Sorológico para COVID-19 , COVID-19 , Proteínas do Nucleocapsídeo de Coronavírus , Ensaio de Imunoadsorção Enzimática , SARS-CoV-2 , Sensibilidade e Especificidade , Glicoproteína da Espícula de Coronavírus , Humanos , COVID-19/diagnóstico , SARS-CoV-2/imunologia , SARS-CoV-2/isolamento & purificação , SARS-CoV-2/genética , Anticorpos Antivirais/sangue , Glicoproteína da Espícula de Coronavírus/imunologia , Teste Sorológico para COVID-19/métodos , Ensaio de Imunoadsorção Enzimática/métodos , Proteínas do Nucleocapsídeo de Coronavírus/imunologia , Fosfoproteínas/imunologia , Imunoglobulina M/sangue , Peptídeos/imunologia , Peptídeos/química , Imunoglobulina G/sangue , Biologia Computacional/métodosRESUMO
OBJECTIVE: To investigate the impact of the Nutrition and Culinary in the Kitchen (NCK) Program on the cooking skills of Brazilian individuals with type 2 diabetes mellitus (T2DM). METHODS: A randomized controlled intervention study was performed, with intervention and control groups. The intervention group participated in weekly sessions of the NCK Program for six weeks (including two in-person practical cooking and three online cooking workshops). The cooking recipes were adapted by replacing high glycemic index ingredients with low and medium glycemic index alternatives. Of note, the recipes did not contain added sugars or sweeteners, were based on the use of fresh or minimally processed foods, herbs, and spices, and were sensorially tested by individuals with T2DM before use in the intervention. The study outcomes were participant score changes on the seven scales. A validated online instrument was administered to the control and intervention groups at baseline (T1) and post-intervention (T2). Parametric and non-parametric tests were used to assess the differences between the T1 and T2 parameters. RESULTS: Of the 60 individuals enrolled, 44 answered the questionnaire at both times. The findings revealed a 45.37% ± 93.57% increase in Knowledge of Cooking Terms in the intervention group, whereas the control group showed a 3.82% ± 16.17% reduction (p = 0.008). There was an increase in all the other cooking skills and healthy eating scales from T1 to T2 in the intervention group, but the differences were not significant. CONCLUSIONS: The development of cooking skills can contribute to increasing culinary knowledge and the availability of time to cook at home. The results contribute to the planning of health actions aimed at individuals with DM2 through culinary interventions and public food and nutrition policies.
Assuntos
Culinária , Diabetes Mellitus Tipo 2 , Humanos , Diabetes Mellitus Tipo 2/dietoterapia , Culinária/métodos , Projetos Piloto , Masculino , Feminino , Pessoa de Meia-Idade , Adulto , Brasil , Idoso , Índice Glicêmico , Conhecimentos, Atitudes e Prática em Saúde , Inquéritos e QuestionáriosRESUMO
INTRODUÇÃO: Cardiac surgery (CS) may be associated with several organic repercussions responsible for the appearance of cardiac risk factors during the postoperative period. These, associated with prolonged hospital length of stay (LoS), may trigger critical manifestations in individuals undergoing this surgical procedure. OBJECTIVE: To investigate the relationships between postoperative cardiac risk factors, LoS, and changes in functioning state. METHODS: Patients undergoing reconstructive, substitutive, or corrective cardiac surgeries were evaluated. The presence of postoperative cardiovascular risks was assessed using the InsCor score, while LoS and functionality were collected from medical records. RESULTS: One-hundred patients with a mean age of 59.2±12.3 years were included. Significant correlations between functionality and both the hospital and Intensive Care Unit (ICU) LoS (p<0.0001, ρ=0.56; p=0.002, ρ=0.29, respectively), as well as between hospital LoS and the number of comorbidities (p=0.003, ρ=0.28) were found. No significant relationships were observed between the number of postoperative risk factors and LoS. CONCLUSION: Functionality and comorbidities are associated with increased hospital and ICU LoS in patients undergoing cardiac surgery.
INTRODUÇÃO: A cirurgia cardíaca (CC) pode estar associada a diversas repercussões orgânicas responsáveis pelo surgimento de fatores de risco cardíaco no pós-operatório. Estas, associadas ao tempo de internação hospitalar (TIH) prolongado, podem desencadear manifestações críticas em indivíduos submetidos a esse procedimento cirúrgico. OBJETIVO: Investigar a correlação entre os fatores de risco cardíaco pós-operatórios em CC, funcionalidade e o (TIH). MÉTODOS: Foram avaliados pacientes submetidos a CC reconstrutivas, substitutivas ou corretivas. A presença de riscos cardiovasculares pós-operatórios foi avaliada pelo escore da InsCor, enquanto o TIH e a funcionalidade foram coletados em prontuários médicos. RESULTADOS: Cem pacientes com idade média de 59,2±12,3 anos foram incluídos. Correlações significativas entre funcionalidade e TIH total e na Unidade de Terapia Intensiva (UTI) (p<0.0001, ρ=0.56; p=0.002, ρ=0.29, respectivamente), bem como entre o TIH e o número de comorbidades (p=0.003, ρ=0.28) foram encontradas. Não foram observadas correlações significativas entre o número de fatores de risco pós-operatórios e o TIH. CONCLUSÃO: O número de alterações funcionais e o número de comorbidades estão associados ao aumento do TIH total e na UTI em pacientes submetidos à CC.
Assuntos
Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Período Pós-Operatório , Cirurgia Torácica , Classificação Internacional de Funcionalidade, Incapacidade e Saúde , Fatores de Risco , Tempo de Internação , Estudos TransversaisRESUMO
Biomechanical analysis of human movement plays an essential role in understanding functional changes in people with Amyotrophic Lateral Sclerosis (ALS), providing information on muscle impairment. Studies suggest that surface electromyography (sEMG) may be able to quantify muscle activity, identify levels of fatigue, assess muscle strength, and monitor variation in limb movement. In this article, a systematic review protocol will analyze the psychometric properties of the sEMG regarding the clinical data on the skeletal muscles of people with ALS. This protocol uses the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) methodological tool. A specific field structure was defined to reach each phase. Nine scientific databases (PubMed, Web of Science, Embase, Elsevier, IEEE, Google Scholar, SciELO, PEDro, LILACS E CENTRAL) were searched. The framework developed will extract data (i.e. study information, sample information, sEMG information, intervention, and outcomes) from the selected studies using a rigorous approach. The data will be described quantitatively using frequency and trend analysis methods, and heterogeneity between the included studies will be assessed using the I2 test. The risk of bias will be summarized using the most recent prediction model risk of bias assessment tool. Be sure to include relevant statistics here, such as sample sizes, response rates, P values or Confidence Intervals. Be specific (by stating the value) rather than general (eg, "there were differences between the groups"). This protocol will map out the construction of a systematic review that will identify and synthesize the advances in movement analysis of people with ALS through sEMG, using data extracted from articles.
Assuntos
Esclerose Lateral Amiotrófica , Eletromiografia , Esclerose Lateral Amiotrófica/fisiopatologia , Esclerose Lateral Amiotrófica/diagnóstico , Humanos , Eletromiografia/métodos , Revisões Sistemáticas como Assunto , Músculo Esquelético/fisiopatologia , Movimento/fisiologia , Fenômenos BiomecânicosRESUMO
BACKGROUND: Leishmania tarentolae is a non-pathogenic species found in lizards representing an important model for Leishmania biology. However, several aspects of this Sauroleishmania remain unknown to explain its low level of virulence. OBJECTIVES: We reported several aspects of L. tarentolae biology including glycoconjugates, proteolytic activities and metabolome composition in comparison to pathogenic species (Leishmania amazonensis, Leishmania braziliensis, Leishmania infantum and Leishmania major). METHODS: Parasites were cultured for extraction and purification of lipophosphoglycan (LPG), immunofluorescence probing with anti-gp63 and resistance against complement. Parasite extracts were also tested for proteases activity and metabolome composition. FINDINGS: Leishmania tarentolae does not express LPG on its surface. It expresses gp63 at lower levels compared to pathogenic species and, is highly sensitive to complement-mediated lysis. This species also lacks intracellular/extracellular activities of proteolytic enzymes. It has metabolic differences with pathogenic species, exhibiting a lower abundance of metabolites including ABC transporters, biosynthesis of unsaturated fatty acids and steroids, TCA cycle, glycine/serine/threonine metabolism, glyoxylate/dicarboxylate metabolism and pentose-phosphate pathways. MAIN CONCLUSIONS: The non-pathogenic phenotype of L. tarentolae is associated with alterations in several biochemical and molecular features. This reinforces the need of comparative studies between pathogenic and non-pathogenic species to elucidate the molecular mechanisms of virulence during host-parasite interactions.