Id |
Subject |
Object |
Predicate |
Lexical cue |
T423 |
0-33 |
Sentence |
denotes |
7 Therapeutics for coronaviruses |
T424 |
34-141 |
Sentence |
denotes |
Ribavirin, an anti-viral agent, is a nucleoside analog and is used for the treatment of SARS-CoV infection. |
T425 |
142-377 |
Sentence |
denotes |
The mechanism of action of this drug includes that the drug inhibits the DNA and RNA replication, disrupting the synthesis of guanosine triphosphate by the inhibition of inosine monophosphate dehydrogenase enzyme [[131], [132], [133]]. |
T426 |
378-610 |
Sentence |
denotes |
5′ triphosphate metabolite of ribavirin, which inhibits the virus's polymerase activity, viral capping inhibition, and induces lethal mutagenesis in the RNA genome of the virus, resulting in the anti-viral effect of ribavirin [134]. |
T427 |
611-684 |
Sentence |
denotes |
The route of drug administration includes aerosol, oral, and intravenous. |
T428 |
685-731 |
Sentence |
denotes |
This drug is used to treat SARS-CoV infection. |
T429 |
732-919 |
Sentence |
denotes |
It has resulted in severe adverse effects, including anemia in about 27–59% of tested patients, which further led to dreadful outcomes such as tissue hypoxia [[135], [136], [137], [138]]. |
T430 |
920-1071 |
Sentence |
denotes |
Also, it elevated the levels of transaminases and resulted in hypocalcemia, hypomagnesemia, developed the risk of teratogenicity and bradycardia [139]. |
T431 |
1072-1271 |
Sentence |
denotes |
Lopinavir and ritonavir, protease inhibitors are used in combination to treat SARS-CoV as the drugs were effective against the virus [135]; whereas, this combination is usually used in HIV treatment. |
T432 |
1272-1420 |
Sentence |
denotes |
The ritonavir inhibits the CYP3A metabolism of lopinavir, thereby making the drug available for a longer time by increasing the serum concentration. |
T433 |
1421-1661 |
Sentence |
denotes |
The lopinavir and ritonavir exhibited very few adverse effects, and beneficial outcomes of this combination of drugs include decreased viral load, increase in the lymphocytic count, and a reduced need for “rescue” pulse steroid doses [140]. |
T434 |
1662-1706 |
Sentence |
denotes |
Viral infection activates the immune system. |
T435 |
1707-1837 |
Sentence |
denotes |
The corticosteroids have been used to eliminate and inhibit the cytokine storm and further, which has been initiated by the virus. |
T436 |
1838-2054 |
Sentence |
denotes |
The viral infection affects a cascade of the immune system, which leads to the production of cytokines such as tumor necrosis factor, IL-1, IL-6, and interferon-gamma, which results in injury to the tissue [141,142]. |
T437 |
2055-2348 |
Sentence |
denotes |
Another possible treatment is the usage of convalescent plasma where the plasma from a recovered patient is transferred to an infected patient, which results in the adaptive immune response against the infectious agent since the recovered patients have antibodies against the infectious agent. |
T438 |
2349-2448 |
Sentence |
denotes |
The convalescent plasma had been shown as a better treatment option for SARS-CoV affected patients. |
T439 |
2449-2567 |
Sentence |
denotes |
This treatment reduced the mortality rate, improved the medical condition of the patient [[143], [144], [145], [146]]. |
T440 |
2568-2710 |
Sentence |
denotes |
According to the Chinese report, in-vitro treatment of SARS-CoV-2 with hydroxychloroquine had resulted in the inhibition of SARS-CoV-2 growth. |
T441 |
2711-3030 |
Sentence |
denotes |
Along with hydroxychloroquine, azithromycin was also administered at a dosage of 500 mg, the patients treated with a combination of hydroxychloroquine and azithromycin exhibited 100% cure and tested negative for PCR results; whereas, the patients treated with hydroxychloroquine alone exhibited only 57.1% success rate. |
T442 |
3031-3158 |
Sentence |
denotes |
This combinational therapy might be an approachable way to cure COVID-19 and needs to be tested over a large sample size [147]. |
T443 |
3159-3263 |
Sentence |
denotes |
Another drug combination, which includes lopinavir and ritonavir, had no in-vitro evidence for COVID-19. |
T444 |
3264-3391 |
Sentence |
denotes |
Also, the clinical trials are being carried out on malarial drugs chloroquine and hydroxychloroquine (represented in Table 2 ). |
T445 |
3392-3470 |
Sentence |
denotes |
Some scientists say that these drugs are not recommendable against SARS-CoV-2. |
T446 |
3471-3571 |
Sentence |
denotes |
Since there are no scientific proofs available and it might be harmful, leading to heart arrhythmia. |
T447 |
3572-3713 |
Sentence |
denotes |
Table 2 Elucidating various drugs used to treat SARS-CoV, MERS-CoV, and SARS-CoV-2, along with their mechanism of action and adverse effects. |
T448 |
3714-3720 |
Sentence |
denotes |
S. no. |
T449 |
3721-3790 |
Sentence |
denotes |
Drug Effective against Mechanism of action Adverse effects References |
T450 |
3791-3793 |
Sentence |
denotes |
1. |
T451 |
3794-3980 |
Sentence |
denotes |
Ribavirin SARS-CoV Anti-viral nucleoside analog – inhibits the viral genomic replication Anemia, hypocalcemia, hypomagnesemia, developed the risk of teratogenicity and bradycardia [118]. |
T452 |
3981-3983 |
Sentence |
denotes |
2. |
T453 |
3984-4065 |
Sentence |
denotes |
Lopinavir SARS-CoV Protease inhibitors Diarrhea, nausea, vomiting, headache [122] |
T454 |
4066-4068 |
Sentence |
denotes |
3. |
T455 |
4069-4150 |
Sentence |
denotes |
Ritonavir SARS-CoV Protease inhibitors Diarrhea, nausea, vomiting, headache [122] |
T456 |
4151-4153 |
Sentence |
denotes |
4. |
T457 |
4154-4273 |
Sentence |
denotes |
Methylprednisolone SARS-CoV Anti-inflammatory effect The onset of diabetes, avascular necrosis, osteoporosis. [132,133] |
T458 |
4274-4276 |
Sentence |
denotes |
5. |
T459 |
4277-4384 |
Sentence |
denotes |
Corticosteroids SARS-CoV Inhibits pro-inflammatory effects Aspergillosis and fungal superinfection [49,134] |
T460 |
4385-4387 |
Sentence |
denotes |
6. |
T461 |
4388-4538 |
Sentence |
denotes |
Methylprednisolone (0.5–1 mg/kg) followed by hydrocortisone (100 mg/8 h) and pulse doses of methylprednisolone (0.5 g for 3 d) Lung diseases – – [124] |
T462 |
4539-4541 |
Sentence |
denotes |
7. |
T463 |
4542-4640 |
Sentence |
denotes |
Convalescent plasma SARS-CoV, MERS-CoV, SARS-CoV-2 Adaptive or passive immune response – [135,139] |
T464 |
4641-4643 |
Sentence |
denotes |
8. |
T465 |
4644-4809 |
Sentence |
denotes |
Lopinavir/ritonavir MERS-CoV, SARS-CoV-2 Not effective against MERS, anti-viral therapy for pneumonia caused by SARS-CoV-2 Diarrhea, nausea, vomiting, headache [140] |
T466 |
4810-4812 |
Sentence |
denotes |
9. |
T467 |
4813-4923 |
Sentence |
denotes |
Pegylated interferon-α Hepatitis-C, MERS-CoV Inhibits DNA synthesis Diarrhea, nausea, vomiting, headache [140] |
T468 |
4924-4927 |
Sentence |
denotes |
10. |
T469 |
4928-5101 |
Sentence |
denotes |
Lopinavir/ritonavir and IFN-β MERS-CoV Improves pulmonary, reduce viral load, and necrosis in lungs and extrapulmonary tissues Diarrhea, nausea, vomiting, headache [143,144] |
T470 |
5102-5105 |
Sentence |
denotes |
11. |
T471 |
5106-5315 |
Sentence |
denotes |
Hydroxychloroquine SARS-CoV-2, Malaria Blocks maturation of endosome, maturation and its function by inhibiting the release of virions in the infected cell Diarrhea, nausea, vomiting, headache, dizziness [112] |
T472 |
5317-5356 |
Sentence |
denotes |
7.1 SARS-CoV-2 and anti-TNFα treatment |
T473 |
5357-5473 |
Sentence |
denotes |
The SARS-CoV-2 mild/moderately affected patients exhibit symptoms such as dry cough, fever, and shortness of breath. |
T474 |
5474-5679 |
Sentence |
denotes |
In the case of severely affected individuals, hyperactivation of immune cells leads to the cytokine storm, which is created upon SARS-CoV-2 infection, resulting in the inflammation at the targeted tissues. |
T475 |
5680-5798 |
Sentence |
denotes |
Therefore, inhibiting the pro-inflammatory candidates might be a potential therapeutic option to treat COVID-19 [148]. |
T476 |
5799-6006 |
Sentence |
denotes |
Anti-TNF therapy was approved and has been utilized for 20 years as a promising option to treat autoimmune diseases such as ankylosing spondylitis, rheumatoid arthritis, and inflammatory bowel disease [149]. |
T477 |
6007-6122 |
Sentence |
denotes |
TNF is the key enhancer of inflammation and also present in the blood of COVID-19 severely affected patients [150]. |
T478 |
6123-6215 |
Sentence |
denotes |
Therefore, prescribing anti-TNF therapy may help to prevent the aggression of the infection. |
T479 |
6216-6308 |
Sentence |
denotes |
It has been reported that patients with inflammatory bowel disease contracted with COVID-19. |
T480 |
6309-6412 |
Sentence |
denotes |
One hundred sixteen patients were on anti-TNF therapy, of whom 99 recovered, and only one patient died. |
T481 |
6413-6595 |
Sentence |
denotes |
Therefore, the usage of anti-TNF therapy may stand as a promising therapy to prevent the progression of the viral infection by inhibiting the key pro-inflammatory cytokine TNF [148]. |
T482 |
6597-6638 |
Sentence |
denotes |
7.2 SARS-CoV-2 and soluble ACE2 receptor |
T483 |
6639-6749 |
Sentence |
denotes |
ACE2 is required for the degradation of Ang II to Ang (1–7), reducing the blood pressure through vasodilation. |
T484 |
6750-6931 |
Sentence |
denotes |
ACE2 exists as both membranous forms, which are found to be anchored to the plasma membrane and the soluble form, circulating in the bloodstream but at a lower proportion [151,152]. |
T485 |
6932-7078 |
Sentence |
denotes |
Besides serving as an entry point for SARS-CoV-2, the higher levels of ACE2 are required by the hypertension patient to reduce the blood pressure. |
T486 |
7079-7171 |
Sentence |
denotes |
Therefore, the ACE2 levels need to be maintained besides inhibiting the entry of SARS-CoV-2. |
T487 |
7172-7517 |
Sentence |
denotes |
Thus, the usage of human recombinant soluble ACE2 (hrsACE2) which exhibited positive results in the phase I and phased II clinical trials to elevate the soluble form of ACE2that competes with the membranous ACE2 for binding with SARS-CoV-2 and inhibits the viral entry and replication can be considered as a therapeutic option to treat COVID-19. |
T488 |
7518-7636 |
Sentence |
denotes |
Besides inhibiting the viral entry, it also sustains the ACE2 levels required for the degradation of Ang II [153,154]. |
T489 |
7637-7704 |
Sentence |
denotes |
Currently, hrsACE2 has been approved as a treatment option of ARDS. |
T490 |
7705-7810 |
Sentence |
denotes |
African green monkey kidney derived cell line; namely, Vero E6 was cultured and infected with SARS-CoV-2. |
T491 |
7811-7909 |
Sentence |
denotes |
Then the infected culture was added with hrsACE2 to estimate the therapeutic potential of hrsACE2. |
T492 |
7910-8059 |
Sentence |
denotes |
15 h post-infection, the viral replication was found to be inhibited in a dose-dependent manner with reference to the concentration of hrsACE2 added. |
T493 |
8060-8290 |
Sentence |
denotes |
The addition of hrsACE2 to the embryonic stem cells derived kidney organoids comprised of proximal tubular cells and podocytes clusters infected with SARS-CoV-2 had shown to reduce the viral replication in a dose-dependent manner. |
T494 |
8291-8418 |
Sentence |
denotes |
No studies support the in-vivo and the therapeutic roles of hrsACE2 on the pulmonary cells upon SARS-CoV-2 infection [153,155]. |
T495 |
8419-8585 |
Sentence |
denotes |
Therefore, the usage of hrsACE2 can be a potential therapeutic option to inhibit the viral infection besides preserving the ACE2 levels and blood pressure in control. |
T496 |
8587-8665 |
Sentence |
denotes |
7.3 FDA approved drug for SARS-CoV-2, remdesivir but not effective against it |
T497 |
8666-8773 |
Sentence |
denotes |
The treatment of remdesivir in COVID-19 patients is not effective against it instead of FDA approved drugs. |
T498 |
8774-8923 |
Sentence |
denotes |
Out of 236 patients, 158 patients received remdesivir at a dosage of 200 mg on 1st day, followed by 100 mg from days 2–10 daily as a single infusion. |
T499 |
8924-9031 |
Sentence |
denotes |
78 out of the 236 patients were assigned to the placebo group and were administered with placebo infusions. |
T500 |
9032-9232 |
Sentence |
denotes |
The presence and quantification of RNA were carried out on 1, 3, 5, 7, 10, 14, 21, and 28 days after administration of the drug, and the samples were collected as nasopharyngeal, fecal and anal swabs. |
T501 |
9233-9358 |
Sentence |
denotes |
One hundred two participants from the remdesivir group and 50 participants from the placebo group exhibited adverse outcomes. |
T502 |
9359-9512 |
Sentence |
denotes |
The adverse effects in the remdesivir group include hypokalaemia, hypoalbuminemia, thrombocytopenia, increased total bilirubin, anemia, and constipation. |
T503 |
9513-9676 |
Sentence |
denotes |
The placebo group's adverse effects include anemia, constipation, elated aspartate, aminotransferases, hypoalbuminemia, elevated total bilirubin, and blood lipids. |
T504 |
9677-9804 |
Sentence |
denotes |
Many participants discontinued from the remdesivir group due to the severe adverse effects such as respiratory failure or ARDS. |
T505 |
9805-9954 |
Sentence |
denotes |
Even though remdesivir has been declared an emergency anti-viral therapy by the FDA, it was found that it was not effective against SARS-CoV-2 [156]. |