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1.
ACS Omega ; 8(12): 10968-10979, 2023 Mar 28.
Artigo em Inglês | MEDLINE | ID: mdl-37008095

RESUMO

The synthesis of fungicides in eco-friendly and cost-effective ways is significantly essential for agriculture. Plant pathogenic fungi cause many ecological and economic issues worldwide, which must be treated with effective fungicides. Here, this study proposes the biosynthesis of fungicides, which combines copper and Cu2O nanoparticles (Cu/Cu2O) synthesized using durian shell (DS) extract as a reducing agent in aqueous media. Sugar and polyphenol compounds contained in DS, as the main phytochemicals acting in the reduction procedure, were extracted under different temperatures and duration conditions to obtain the highest yields. We confirmed the extraction process performed at 70 °C for 60 min to be the most effective in extracting sugar (6.1 g/L) and polyphenols (22.7 mg/L). We determined the suitable conditions for Cu/Cu2O synthesis using a DS extract as a reducing agent for a synthesis time of 90 min, a volume ratio of DR extract/Cu2+ of 15:35, an initial pH solution of 10, a synthesis temperature of 70 °C, and a CuSO4 concentration of 10 mM. The characterization results of as-prepared Cu/Cu2O NP showed a highly crystalline structure of Cu2O and Cu with sizes estimated in the range of 40-25 nm and 25-30 nm, respectively. Through in vitro experiments, the antifungal efficacy of Cu/Cu2O against Corynespora cassiicola and Neoscytalidium dimidiatum was investigated by the inhibition zone. The green-synthesized Cu/Cu2O nanocomposites, which are potential antifungals against plant pathogens, exhibited excellent antifungal efficacy against both Corynespora cassiicola (MIC = 0.25 g/L, the diameter of the inhibition zone was 22.00 ± 0.52 mm) and Neoscytalidium dimidiatum (MIC = 0.0625 g/L, the diameter of the inhibition zone was 18.00 ± 0.58 mm). Cu/Cu2O nanocomosites prepared in this study could be a valuable suggestion for the control of plant pathogenic fungi affecting crop species globally.

2.
Asia Pac J Public Health ; 34(2-3): 172-181, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-34798781

RESUMO

Mental health in young people is a public health challenge worldwide, with around one-fifth of university students suffering from a 12-month mental disorder. In low- and middle-income countries (LMICs) of Southeastern Asia, resources for mental health are limited and counseling services are not regularly established at universities. This review aims to determine the prevalence of mental health problems among university students in six ASEAN (Association of Southeast Asian Nations) countries (Cambodia, Laos, Malaysia, Myanmar, Thailand, and Vietnam) and to identify the determinants of mental health. A systematic database search (PubMed, CINAHL, PsycINFO, PubPsych, and Scopus) for peer-reviewed, English language articles, published 2010-2020, reporting prevalence data based on standardized screening instruments resulted in 335 articles; 108 were eligible for full-text analysis, of which 34 could be included in the review. Median point prevalence was 29.4% for depression, 42.4% for anxiety, 16.4% for stress, and 13.9% for disordered eating. Current suicidality was present in 7% to 8% of students. There was a high rate of psychiatric comorbidity. Despite the high prevalence of mental health problems, the willingness to seek professional help was comparatively low. Implications for mental health promotion and prevention in university settings are discussed.


Assuntos
Saúde Mental , Estudantes , Adolescente , Sudeste Asiático/epidemiologia , Humanos , Prevalência , Estudantes/psicologia , Universidades
3.
Int J Cardiol Heart Vasc ; 22: 169-173, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30899774

RESUMO

BACKGROUND: The Ho-Chi-Minh-city Heart Institute in Vietnam took part in the Optimize Heart Failure (OHF) Care Program, designed to improve outcomes following heart failure (HF) hospitalization by increasing patient awareness and optimizing HF treatment. METHODS: HF patients hospitalized with left ventricular ejection-fraction (LVEF) <50% were included. Patients received guideline-recommended HF treatment and education. Clinical signs, treatments and outcomes were assessed at admission, discharge, 2 and 6 months (M2, M6). Patients' knowledge and practice were assessed at M6 by telephone survey. RESULTS: 257 patients were included. Between admission and M2 and M6, heart rate decreased significantly, and clinical symptoms improved significantly. LVEF increased significantly from admission to M6. 85% to 99% of patients received education. At M6, 45% to 78% of patients acquired knowledge and adhered to practice regarding diet, exercise, weight control, and detection of worsening symptoms. High use of renin-angiotensin-aldosterone-system inhibitors (91%), mineralocorticoid-receptor-antagonists (77%) and diuretics (85%) was noted at discharge. Beta-blocker and ivabradine use was less frequent at discharge but increased significantly at M6 (from 33% to 51% and from 9% to 20%, respectively, p < 0.001). There were no in-hospital deaths. Readmission rates at 30 and 60 days after discharge were 8.3% and 12.5%, respectively. Mortality rates at 30 days, 60 days and 6 months were 1.2%, 2.5% and 6.4%, respectively. CONCLUSIONS: The OHF Care Program could be implemented in Vietnam without difficulty and was associated with high usage of guideline-recommended drug therapy. Although education was delivered, patient knowledge and practice could be further improved at M6 after discharge.

4.
Artigo em Vietnamês | WPRIM (Pacífico Ocidental) | ID: wpr-3603

RESUMO

Studying retrospectively 117 cases of atherosclerosis in the Hospital of Hematology and Blood Transfusion in Ho Chi Minh city showed that: atherosclerosis is very common in elderly and the form of calcified plaque accounts for highest rate. Atherosclerosis is usually associated with other pathological status such as CHA, blood lipid disorder, diabetes and obesity


Assuntos
Fatores de Coagulação Sanguínea , Arteriosclerose , Sangue
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