Id |
Subject |
Object |
Predicate |
Lexical cue |
T91 |
0-104 |
Sentence |
denotes |
From vitamin C to G6PD in viral infections (influenza virus, enterovirus, coronavirus, and dengue virus) |
T92 |
105-236 |
Sentence |
denotes |
Upon viral infection, the innate immune system acts immediately to prevent invading microbes from spreading and moving in the host. |
T93 |
237-304 |
Sentence |
denotes |
The immune responses are closely associated with the redox balance. |
T94 |
305-422 |
Sentence |
denotes |
The redox milieu can modulate viral replication, including HIV, influenza, and respiratory syncytial viruses [44–46]. |
T95 |
423-626 |
Sentence |
denotes |
Antioxidant therapy may prove effective in the prevention of viral infection through redox control [47–50], while insufficient antioxidant capacity is conducive to viral production and virulence [51,52]. |
T96 |
627-720 |
Sentence |
denotes |
For instance, glutathione can inactivate dengue and chikungunya viruses in the blood [53,54]. |
T97 |
721-821 |
Sentence |
denotes |
N-acetylcysteine (NAC) attenuates influenza-like symptoms and COVID-19-induced inflammation [55,56]. |
T98 |
822-971 |
Sentence |
denotes |
On the other hand, selenium deficiency in mice is associated with enhanced enteroviruses virulence and the development of myocardial lesions [57,58]. |
T99 |
972-1075 |
Sentence |
denotes |
Glutathione deficiency is linked to HIV progression and poor survival of HIV-infected individuals [59]. |
T100 |
1076-1194 |
Sentence |
denotes |
Vitamin C, a natural antioxidant and potent free radical scavenger, has long been known for its antiviral effect [60]. |
T101 |
1195-1318 |
Sentence |
denotes |
The capacity for donating electrons enables vitamin C to support essential cellular processes and immune responses [61–64]. |
T102 |
1319-1457 |
Sentence |
denotes |
Vitamin C maintains barrier integrity and facilitates wound healing of the skin against oxidative stress and microbial infections [65,66]. |
T103 |
1458-1557 |
Sentence |
denotes |
Vitamin C is required for chemotaxis, phagocytosis, and microbial clearance in neutrophils [67,68]. |
T104 |
1558-1692 |
Sentence |
denotes |
It is also necessary for apoptosis and clearance of used neutrophils as well as neutrophil extracellular trap (NET) formation [69,70]. |
T105 |
1693-1782 |
Sentence |
denotes |
The acidic condition caused by vitamin C helps to convert inorganic nitrate into NO [71]. |
T106 |
1783-1860 |
Sentence |
denotes |
Lack of vitamin C leads to immune dysfunction and vulnerability to infection. |
T107 |
1861-1941 |
Sentence |
denotes |
Humans cannot produce vitamin C owing to nonfunctional L-gluconolactone oxidase. |
T108 |
1942-2049 |
Sentence |
denotes |
Supplementation with a high dose of vitamin C can reduce the symptoms and duration of the common cold [72]. |
T109 |
2050-2225 |
Sentence |
denotes |
Vitamin C therapy is recognized as a beneficial adjunctive strategy to ameliorate the symptoms of respiratory diseases, including severe acute respiratory disease (SARS) [73]. |
T110 |
2226-2349 |
Sentence |
denotes |
Glucose competes with the uptake of the oxidized form of vitamin C, dehydroascorbic acid, via the glucose transporter [74]. |
T111 |
2350-2425 |
Sentence |
denotes |
Hence, the bioavailability of vitamin C can be restricted by hyperglycemia. |
T112 |
2426-2585 |
Sentence |
denotes |
If diabetic COVID-19 patients have low levels of vitamin C and are not treated with intravenous vitamin C, it may partly explain the severity of their illness. |
T113 |
2586-2705 |
Sentence |
denotes |
Several clinical trials have been proposed to infuse high dose vitamin C as an intervention for COVID-19 patients [75]. |
T114 |
2706-2888 |
Sentence |
denotes |
A variety of viruses including calicivirus, hepatitis C virus (HCV), norovirus, rabies, and rubella viruses are sensitive to oxidative stress caused by hydrogen peroxide (H2O2) [76]. |
T115 |
2889-2954 |
Sentence |
denotes |
H2O2 (0.5%) can inactivate coronavirus within a few minutes [77]. |
T116 |
2955-3113 |
Sentence |
denotes |
H2O2-containing sanitization products, such as nose or mouth wash, can boost innate immunity and protect against novel coronaviruses in the respiratory tract. |
T117 |
3114-3226 |
Sentence |
denotes |
Nitric oxide (NO) is a gaseous free radical that regulates the immune response and provides vascular protection. |
T118 |
3227-3311 |
Sentence |
denotes |
Vasodilation caused by NO potentially alleviates lung injuries due to COVID-19 [78]. |
T119 |
3312-3393 |
Sentence |
denotes |
Reduced or disturbed NO metabolism is linked to the disease severity of COVID-19. |
T120 |
3394-3530 |
Sentence |
denotes |
NO inhalation or a nitrate-rich diet can be beneficial in reversing the pulmonary hypertension and mortality caused by COVID-19 [79,80]. |
T121 |
3531-3589 |
Sentence |
denotes |
NO production is positively correlated with G6PD activity. |
T122 |
3590-3706 |
Sentence |
denotes |
G6PD deficiency in human granulocytes abolishes NO production induced by LPS and 12-myristate 13-acetate (PMA) [42]. |
T123 |
3707-3808 |
Sentence |
denotes |
IL-1β increases NOS expression and NO levels as well as G6PD activity in pancreatic islet cells [81]. |
T124 |
3809-3886 |
Sentence |
denotes |
Inhibition of G6PD by DHEA or siRNA decreases IL-1β-stimulated NO production. |
T125 |
3887-3989 |
Sentence |
denotes |
The bioavailability of NO and G6PD status are inversely correlated with ROS in endothelial cells [82]. |
T126 |
3990-4170 |
Sentence |
denotes |
Less endothelial NOS (eNOS) expression and low levels of NO and GSH are found in G6PD-deficient endothelial cells, while L-cysteine, a GSH precursor, reduces oxidative stress [83]. |
T127 |
4171-4221 |
Sentence |
denotes |
Peroxynitrite derived from NO is toxic to neurons. |
T128 |
4222-4285 |
Sentence |
denotes |
It stimulates G6PD activity and causes apoptosis in PC12 cells. |
T129 |
4286-4417 |
Sentence |
denotes |
NO-mediated apoptotic neuronal cell death can be rescued by G6PD overexpression, while G6PD suppression worsens the apoptosis [84]. |
T130 |
4418-4479 |
Sentence |
denotes |
G6PD may play an important role in viral infection [9–11,85]. |
T131 |
4480-4543 |
Sentence |
denotes |
Lack of G6PD promotes cytopathic effects and viral replication. |
T132 |
4544-4662 |
Sentence |
denotes |
G6PD-deficient cells are susceptible to viral infection, such as coronavirus, dengue virus, and enterovirus [9,85,86]. |
T133 |
4663-4856 |
Sentence |
denotes |
During human coronavirus 229E or enterovirus 71 infections in G6PD-deficient human lung fibroblasts and epithelial cells, HSCARG, a NADPH sensor, and a negative NF-κB regulator is up-regulated. |
T134 |
4857-4972 |
Sentence |
denotes |
Knockdown of HSCARG activates NF-κB and induces downstream antiviral gene expression, including TNF-α and MX1 [10]. |
T135 |
4973-5092 |
Sentence |
denotes |
Downregulation of HSCARG decreases viral gene expression, while the upregulation of HSCARG increases viral replication. |
T136 |
5093-5203 |
Sentence |
denotes |
This indicates that G6PD activity determines the anti-viral response mediated by HSCARG and the NF-κB pathway. |
T137 |
5204-5386 |
Sentence |
denotes |
G6PD deficiency is associated with reduced expression of prostaglandin E2 (PGE2) and its upstream cyclooxygenase-2 (COX-2), which regulates inflammatory and antiviral responses [11]. |
T138 |
5387-5573 |
Sentence |
denotes |
TNF-α stimulated COX-2 inhibition in G6PD-deficient lung epithelial cells increases the susceptibility to coronavirus infection by the decreased phosphorylation of MAPK and NF-κB levels. |
T139 |
5574-5805 |
Sentence |
denotes |
The expression of MAPK activation and COX-2 triggered by TNF-α in G6PD-deficient cells can be attenuated by siRNA against NOX or the NOX inhibitor diphenyleneiodonium (DPI), suggesting the involvement of NOX signaling by G6PD [17]. |
T140 |
5806-5933 |
Sentence |
denotes |
These findings indicate that G6PD is necessary for NOX activation upon TNF-α stimulation in regulating the anti-viral response. |