• Publications
  • Influence
Health effects of quercetin: from antioxidant to nutraceutical.
Quercetin, a member of the flavonoids family, is one of the most prominent dietary antioxidants. It is ubiquitously present in foods including vegetables, fruit, tea and wine as well as countlessExpand
  • 1,236
  • 44
  • PDF
SARS‐CoV‐2 receptor ACE2 and TMPRSS2 are primarily expressed in bronchial transient secretory cells
The SARS‐CoV‐2 pandemic affecting the human respiratory system severely challenges public health and urgently demands for increasing our understanding of COVID‐19 pathogenesis, especially hostExpand
  • 322
  • 21
Influence of simulated gastrointestinal conditions on particle-induced cytotoxicity and interleukin-8 regulation in differentiated and undifferentiated Caco-2 cells
Abstract Novel aspects of engineered nanoparticles offer many advantages for optimising food products and packaging. However, their potential hazards in the gastrointestinal tract require furtherExpand
  • 79
  • 10
A European Respiratory Society technical standard: exhaled biomarkers in lung disease
Breath tests cover the fraction of nitric oxide in expired gas (FENO), volatile organic compounds (VOCs), variables in exhaled breath condensate (EBC) and other measurements. For EBC and for FENO,Expand
  • 216
  • 7
  • PDF
The quercetin paradox.
Free radical scavenging antioxidants, such as quercetin, are chemically converted into oxidation products when they protect against free radicals. The main oxidation product of quercetin, however,Expand
  • 174
  • 6
  • PDF
The reversibility of the glutathionyl-quercetin adduct spreads oxidized quercetin-induced toxicity.
Quercetin is one of the most prominent dietary antioxidants. During its antioxidant activity, quercetin becomes oxidized into its o-quinone/quinone methide QQ. QQ is toxic since it instantaneouslyExpand
  • 51
  • 6
  • PDF
Oxidant metabolism in chronic obstructive pulmonary disease
The development and progression of chronic obstructive pulmonary disease (COPD) have been associated with increased oxidative stress or reduced antioxidant resources. Several indicators of oxidativeExpand
  • 137
  • 4
Protection by quercetin and quercetin-rich fruit juice against induction of oxidative DNA damage and formation of BPDE-DNA adducts in human lymphocytes.
Flavonoids are claimed to protect against cardiovascular disease, certain forms of cancer and ageing, possibly by preventing initial DNA damage. Therefore, we investigated the protective effects ofExpand
  • 169
  • 4
Oxidized quercetin reacts with thiols rather than with ascorbate: implication for quercetin supplementation.
When an antioxidant scavenges a reactive species, i.e., when it exerts its antioxidant activity, the antioxidant is converted into potentially harmful oxidation products. In this way, the antioxidantExpand
  • 153
  • 3
  • PDF
Quercetin reduces markers of oxidative stress and inflammation in sarcoidosis.
BACKGROUND & AIMS Oxidative stress and low antioxidant levels are implicated in the aetiology of sarcoidosis, an inflammatory disease. Quercetin is a potent dietary antioxidant that also displaysExpand
  • 131
  • 3
  • PDF