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1.
Bioorg Chem ; 145: 107238, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38412652

RESUMO

INTRODUCTION: Antibacterial drugs have been widely used for the past century to treat diseases, but their efficacy has been limited by multi-resistant pathogens, particularly those that utilize beta-lactamase enzymes. The inhibition of beta-lactamase enzymes holds great promise for reducing the influence of such pathogens. OBJECTIVE: This study aims to evaluate the mechanism of inhibition of phytochemicals with antibacterial activity against two classes of beta-lactamases using computational methods. METHODS: To achieve this objective, a total of thirty phytochemicals were docked against SHV-1 beta-lactamase and AmpC beta-lactamase after procurement from Protein Data Bank. The pharmacokinetics (ADMET) and density functional theory (DFT) analysis study were also conducted to unravel the nature of the top six most promising compounds on each protein. RESULTS: The results showed that a significant percentage of the compounds had binding affinities greater than that of avibactam, the positive control. Quercetin-3-O-rutinoside showed the most promising results against SHV-1 beta-lactamase with an affinity of -9.4 kcal/mol, while luteolin was found to be the most promising candidate against AmpC beta-lactamase with an affinity of -8.5 kcal/mol. DFT analysis demonstrated the reactivity of these compounds, and the ADMET study indicated that they were relatively safe. CONCLUSION: In conclusion, the study's findings suggest that the selected compounds have significant potential to inhibit beta-lactamase and may be used in combination with antibiotics against organisms that produce beta-lactamase. This study provides a basis for further research in a wet-lab setting to validate the results.


Assuntos
Inibidores de beta-Lactamases , beta-Lactamases , Inibidores de beta-Lactamases/farmacologia , beta-Lactamases/metabolismo , Antibacterianos/química , Testes de Sensibilidade Microbiana
2.
Ann Med Surg (Lond) ; 82: 104769, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36249309

RESUMO

In Sub-Saharan Africa, the morbidity and mortality rate from malnutrition is increasing more than in any place in the world. Malnutrition has been a public health challenge in Sub-Saharan Africa that has not received enough attention. This commentary discussed the causes, effects and the need to prioritize the prevention and control of Malnutrition in Africa, together with practical recommendations. Several factors contribute to the high prevalence of malnutrition in sub-Saharan Africa. Some are poverty, overpopulation, unsuccessful small-scale agriculture, low educational status, climate change, corruption, wars and conflicts, fluctuation of food prices, etc. Conversely, the effects of malnutrition on individuals have resulted in the development of illnesses and chronic health issues. Hence, there is a need to reach out to malnourished individuals, encourage the government, investors, and non-governmental organizations (NGOs) to take action, educate health staff to detect and react to early indicators of malnutrition, enhance agricultural product output, manage and preserve the environment, and use technology to its full potential. All of these suggestions will significantly impact the incidence of malnutrition in Sub-Saharan Africa.

3.
Ann Med Surg (Lond) ; 82: 104522, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36164642

RESUMO

In Sub Saharan Africa, the morbidity and mortality rate from Non-Communicable Diseases is increasing more than in any place in the world. However, Sub-Saharan Africa faces many challenges such as problems with financing, health system issues, contending interests from industry actors as well as low NCD awareness levels, which have impeded all efforts to curb the burden of these diseases. This perspective discussed the causes, effects and the need to the prioritize prevention and control of non-communicable diseases in Africa, together with practical recommendations. Some of the causes include fast urbanization, dietary changes, lack of health insurance and political instability amongst others, these have had huge implications on not only health indices but also socio-economic development in African countries. There is a need for political will and engagement, community engagement, behavioral changes, and interdisciplinary coordination to reduce the prevalence of NCDs in Africa.

4.
Health Promot Perspect ; 12(3): 282-285, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36686053

RESUMO

Vaccine development and production harbinger the control and eradication of infectious diseases. Vaccination played a huge role in the curtailment of disease outbreaks like smallpox and polio, especially in Africa. Despite the high demand for several vaccines in Africa due to the highly infectious disease burden, the continent still lacks adequate capacity for vaccine research and development. This paper aims to discuss the need and challenges of Africa to strengthen its capacity for vaccine research and development and also highlight practical recommendations. Some of the needs for Africa to prioritize vaccine research and development include; improving quality of life and well-being, cost-effectiveness, independent preparedness and response to local outbreaks, and increased access to funding. Challenges associated with vaccine research and development include the cost of the investment, risk of failure; poor ethical framework and legislation; lack of adequate funding; lack of political will & support; and poor surveillance system. Strategies to create sufficient research funds, an efficient surveillance system, and a legislative framework are clearly described. In conclusion, strengthening vaccine research capacity in Africa requires the political goodwill of African governments and strategic partnerships with international organizations and institutes. The challenges facing this development and possible solutions have been highlighted in this article.

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