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de Araújo Amanda Dias,de Barros Pimentel Maria do Carmo,Santos Camila da Silva,da Silva Roberto Afonso,Cadena Pabyton Gonçalves,da Silva Nicácio Henrique,Gusmão Norma Buarque,Sleifer Bruno Alonso,da S 경희대학교 융합한의과학연구소 2021 Oriental Pharmacy and Experimental Medicine Vol.21 No.4
The focus of this study was to evaluate the presence and type of carbohydrates and phenolic molecules inaqueous extract (Aq-E) of Alternanthera brasiliana fresh leaves and its antioxidant and antimicrobial activities and cytotoxicity in vitro. The amount and types of the carbohydrates were measured by colorimetric and TLC methods. Phenolic compounds was detected by colorimetric assay and analysed by HPLC profiles. The antioxidant activity was evaluated by ABTS and Phosphomolybdenum methods. Antimicrobial activity was tested by microdilution method using microorganism models and antibiotic as positive control, the cytotoxicity in vitro was tested using Artemia salina. The results showed the presence of high amount of total sugars and uronic acids. TLC chromatograms showed mainly D-glucose, D-fructose, oligosaccharides and uronic acids in the Aq-E and a sugar alcohol in the methanolic extract. The colorimetric determination showed high concentration of phenolic compounds, which were visualised on the HPLC profiles, such as chemical markers of the Amaranthaceae family and several phenolic acids and flavonoids. The Aq-E demonstrated optimal antioxidant activities. The most important results were the excellent antibacterial and bactericidal activities against Mycobacterium megmatis (MIC = 15.6 µg/mL and MBC = 1000 µg/mL) and antimicrobial activity against Candida albicans (MIC = 31.2 µg/mL) and low cytotoxicity. Further possibilities for this plant extract will be to improve the pharmacological potential for developing new herbal medicines and possibly to study its association to allopathic antibiotics for prevention or treatment of infection diseases.
Mayra Cristina da Luz Pádua Guimarães,Juliana Chaves Coelho,Juliano dos Santos,Camila Braga de Oliveira Higa,Carime Farah Flórido,Renata Jae Won Lee,Grazielli Soares Paes,Giovanio Vieira da Silva,Luci 대한고혈압학회 2022 Clinical Hypertension Vol.28 No.-
Background: Nonadherence to antihypertensive treatment is one of the main causes of the lack of blood pressure (BP) control. The coronavirus disease (COVID-19) pandemic imposes substantial social restriction impairing the medical care routine, which may influence adherence to the antihypertensive treatment. To assess the rate of nonadherence to antihypertensive drug treatment during the COVID-19 pandemic. Methods: This is a cross-sectional study evaluating hypertensive adult patients from a tertiary outpatient clinic. From March to August 2020, patients were interviewed by telephone during the social distancing period of the COVID-19 pandemic. We evaluated biosocial data, habits, attitudes, and treatment adherence using the 4-item Morisky Green Levine Scale during the social distancing. Uncontrolled BP was defined by BP ≥ 140/90 mmHg. Clinical and prescription variables for drug treatment were obtained from the electronic medical record. We performed a multivariate analysis to determine the predictors of nonadherence to BP treatment. Results: We studied 281 patients (age 66 ± 14 years, 60.5% white, 62.3% women, mean education of 9.0 ± 4 years of study). We found that 41.3% of the individuals reported poor adherence to antihypertensive drug treatment and 48.4% had uncontrolled BP. Subsample data identified that adherence was worse during the pandemic than in the previous period. The variables that were independently associated with the nonadherence during the pandemic period were black skin color (odds ratio [OR], 2.62; 95% confidence interval [CI], 1.46–4.68), and intermittent lack of access to antihypertensive medication during the pandemic (OR, 2.56; 95% CI, 1.11–5.89). Conclusions: Beyond traditional variables associated with poor adherence, the lack of availability of antihypertensive medications during the study underscore the potential role of pandemic on hypertension burden.
Júlia Daneluz,Guilherme Ferreira da Silva,Jocelei Duarte,Tayse Circe Turossi,Venina dos Santos,Camila Baldasso,Ana Carolina Daneluz 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.126 No.-
Membranes are barriers that act as filters, retaining particles and molecules larger than their pore sizeand allowing smaller particles and molecules to permeate. This study aimed to evaluate membranes ofmicrofiltration and ultrafiltration for later application in the filtration of kombuchas. To achieve the proposedobjective, the membranes were compacted and characterized in terms of hydraulic permeabilityand kombucha permeate flux. The hydraulic permeability of the microfiltration membrane was 308.15Lh1m2bar1 and that of the ultrafiltration membrane was 12.05 Lh1m2bar1. For both membranes,the permeate kombucha flux reduced with time for each pressure evaluated individually, dueto fouling.
Expression of Sara2 Human Gene in Erythroid Progenitors
Jardim, Denis Leonardo Fontes,Cunha, Anderson Ferreira Da,Duarte, Adriana Da Silva Santos,Santos, Camila Oresco Dos,Saad, Sara Terezinha Olalla,Costa, Fernando Ferreira Korean Society for Biochemistry and Molecular Biol 2005 Journal of biochemistry and molecular biology Vol.38 No.3
A human homologue of Sar1, named Sara2, was shown to be preferentially expressed during erythropoiesis in a culture stimulated by EPO. Previous studies, in yeast, have shown that secretion-associated and Ras-related protein (Sar1p) plays an essential role in protein transport from the endoplasmic reticulum to the Golgi apparatus. Here, we report the molecular analysis of Sara2 in erythroid cell culture. A 1250 bp long cDNA, encoding a 198 amino-acid protein very similar to Sar1 proteins from other organisms, was obtained. Furthermore, we also report a functional study of Sara2 with Real-time quantitative PCR analysis, demonstrating that expression of Sara2 mRNA increases during the initial stages of erythroid differentiation with EPO and that a two-fold increase in expression occurs following the addition of hydroxyurea (HU). In K562 cells, Sara2 mRNA was observed to have a constant expression and the addition of HU also up-regulated the expression in these cells. Our results suggest that Sara2 is an important gene in processes involving proliferation and differentiation and could be valuable for understanding the vesicular transport system during erythropoiesis.