*** Do the results and conclusion statements from the abstract transfer to people? ***
good question. Most aren’t really being subscribed Chloroquine but a less toxic formula Hydroxychloroquine.
What bugged me was nobody did any research to: find any (this) studies\articles and see where it led to.
This article can expand: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1232869/
then we can click on “cited by” in “This article has been cited by other articles in PMC.”
and it returns 46 articles here: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1232869/citedby/
Note all the other articles in the 2020 date range.
Note this article from 2016 - table 3 here: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7097181/
I didn’t do the deep dive. I Don’t know what I’m looking at.
The “experts” mostly dismissed using antimalarials and I’m guessing no-one had any of this info at hand going before the cameras
and dismissing it.
Instead, President Trump got hammered for considering antimalarials “could be” game-changers.
From text of article you cited...
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7097181/
“Alternatively, endocytosis can also be suppressed by a high pH. Chloroquine is an anti-malarial drug that sequesters protons into lysosomes to increase the intracellular pH. It has broad-spectrum antiviral activities against numerous CoVs (SARS-CoV, MERS-CoV, HCoV-229E and HCoV-OC43) and other RNA viruses in vitro123,210,211,212,213,214. However, it did not substantially reduce viral replication in SARS-CoV-infected mice, possibly because the cell surface pathway was not simultaneously blocked215. The anti-CoV effects, pharmacokinetic and pharmacodynamic profiles and toxicity of the combinations of different protease and endocytosis inhibitors that target these different cell entry pathways should be further evaluated in vivo.”
Review article stated it looks good in vitro, but 1 study in mice showed it did not ‘substantially’ reduce viral replication. But, do more studies...
The mouse study ( https://journals.sagepub.com/doi/pdf/10.1177/095632020601700505 ), starting last paragraph p279 “...intranasal chloroquine lessened viral lung titres by 0.8 half-log10 at the highest dose used, although this reduction was not statistically significant.”
So doing a repeat evaluation with a higher intranasal dose of chloroquine would be a possible avenue of study; especially as the intraperitoneal dose (in gut, typical administration route in mouse model) showed no effect. So, to me, maybe the drug was not getting to the site of action needed. Their discussion on p281, “As predicted by the in vitroexperiments in this study,agents such as nelfinavir and the marginally selectivechloroquine and amodiaquine, which have been suggestedby many who have reviewed the field of SARS antiviraltherapy (see, for example, Chihrin & Loutfy, 2005; Wuet al., 2006; De Clercq, 2006) to be promising antiviralagents for treating SARS, were not active in the mousemodel. The anti-inflammatory agents such as the chloro-quines and PTX are therefore presumed not to be likely tobe effective alone against a SARS infection.”
Instead, President Trump got hammered for considering antimalarials could be game-changers.
*************************
Thank you for the links, “I’ll think about that tomorrow. Tomorrow is another day.”
And indeed, President Trump was hung out to dry regarding his commments that proven antimalarials, in a few cases, including aboard (one of?) the Diamond Princess cruise ship(s), South Korea, had been “game-changers.”
https://www.freerepublic.com/focus/chat/3827877/posts?page=975#975
Ping Pong