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1.
Antioxidants (Basel) ; 11(3)2022 Feb 25.
Article in English | MEDLINE | ID: covidwho-1760315

ABSTRACT

The rapid spread of antibiotic resistance and lack of effective drugs for treating infections caused by multi-drug resistant bacteria in animal and human medicine have forced us to find new antibacterial strategies. Natural products have served as powerful therapeutics against bacterial infection and are still an important source for the discovery of novel antibacterial drugs. Curcumin, an important constituent of turmeric, is considered safe for oral consumption to treat bacterial infections. Many studies showed that curcumin exhibited antibacterial activities against Gram-negative and Gram-positive bacteria. The antibacterial action of curcumin involves the disruption of the bacterial membrane, inhibition of the production of bacterial virulence factors and biofilm formation, and the induction of oxidative stress. These characteristics also contribute to explain how curcumin acts a broad-spectrum antibacterial adjuvant, which was evidenced by the markedly additive or synergistical effects with various types of conventional antibiotics or non-antibiotic compounds. In this review, we summarize the antibacterial properties, underlying molecular mechanism of curcumin, and discuss its combination use, nano-formulations, safety, and current challenges towards development as an antibacterial agent. We hope that this review provides valuable insight, stimulates broader discussions, and spurs further developments around this promising natural product.

2.
EuropePMC; 2021.
Preprint in English | EuropePMC | ID: ppcovidwho-315485

ABSTRACT

Purpose: To explore the role of chronic liver disease (CLD) in COVID-19. Methods: : A total of 1,439 consecutively hospitalized patients with COVID-19 from one large medical center in the United States from March 16, 2020 to April 23, 2020 were retrospectively identified. Clinical characteristics and outcomes were compared between patients with and without CLD. Postmortem examination of liver in 8 critically ill COVID-19 patients was performed. Results: : There was no significant difference in the incidence of CLD between critical and non-critical groups (4.1% vs 2.9%, p=0.259), or COVID-19 related liver injury between patients with and without CLD (65.7% vs 49.7%, p=0.065). Postmortem examination of liver demonstrated mild liver injury associated central vein outflow obstruction and minimal to moderate portal lymphocytic infiltrate without evidence of CLD. Conclusion: Patients with CLD were not associated with a higher risk of liver injury or critical/fatal outcomes. CLD was not a significant comorbid condition for COVID-19.

3.
Sci Rep ; 11(1): 11734, 2021 06 03.
Article in English | MEDLINE | ID: covidwho-1258596

ABSTRACT

To explore the role of chronic liver disease (CLD) in COVID-19. A total of 1439 consecutively hospitalized patients with COVID-19 from one large medical center in the United States from March 16, 2020 to April 23, 2020 were retrospectively identified. Clinical characteristics and outcomes were compared between patients with and without CLD. Postmortem examination of liver in 8 critically ill COVID-19 patients was performed. There was no significant difference in the incidence of CLD between critical and non-critical groups (4.1% vs 2.9%, p = 0.259), or COVID-19 related liver injury between patients with and without CLD (65.7% vs 49.7%, p = 0.065). Postmortem examination of liver demonstrated mild liver injury associated central vein outflow obstruction and minimal to moderate portal lymphocytic infiltrate without evidence of CLD. Patients with CLD were not associated with a higher risk of liver injury or critical/fatal outcomes. CLD was not a significant comorbid condition for COVID-19.


Subject(s)
COVID-19/epidemiology , Liver Diseases/epidemiology , Acute Lung Injury/epidemiology , Acute Lung Injury/pathology , Aged , COVID-19/mortality , Chronic Disease , Comorbidity , Female , Humans , Liver Diseases/pathology , Liver Function Tests , Male , Middle Aged , Proportional Hazards Models , United States/epidemiology
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