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PhilGeis

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Posts posted by PhilGeis

  1. Suggesting that Pres Trump profits from these the pharmaceutical is facebookian hateful bias.  Perhaps you should invest a tiny amount of time to consider the facts.  Chlroquine has been off patent for decades and its two primary large company suppliers - Teva and Bayer -_ are both publically-held companies.  Both have donated millions of doses.

    Typical hateful bias. 

    Suggest you folks stick to the ill-informed technical and policy discussions.

  2. Not that simple.  In US, FDA policy is controlling https://www.fda.gov/media/136118/download

    among other challenges, pasteurization can NOT replace hydrogen peroxide.  H2O2 is intended to address contamination  by heat-resistant, spore-forming bacteria.  Ethanol and glycerine have to be of quality  and please note WHO and FDA specify water quality - not a trivial consideration for water or for manufacturing system hygiene - https://www.cambridge.org/core/journals/infection-control-and-hospital-epidemiology/article/outbreak-of-burkholderia-cepacia-bacteremia-traced-to-contaminated-hospital-water-used-for-dilution-of-an-alcohol-skin-antiseptic/15AAB.3A9306E02D9DE9B2434EDDEA5CD

  3. On 3/29/2020 at 9:43 PM, CharonY said:

     

    This time a lot of folks dropped the ball which resulted in a rather unprecedented situation. The question is whether the next one (which will come) will be contained better or not.

    How do you see the ball being dropped?  Please recall, viral outbreaks are frequent and response has often exceeded the realized risk.  The classic was swine flu of Ford presidency where mass immunization was attempted after one death.  Even now - WHO was hesitant to call it a pandemic due to criticism for previous exaggerated announcements.

    Hopefully ignoring the loud background of political gamesmanship and with the observation of questionable hindsight among folks here who are not expert in relevant epidemiology - what was dropped?

    One clearly was CDC's failed test.  how else should folks - at that time and with that experience - have responded.

     

  4. On 3/26/2020 at 12:11 AM, MigL said:

     

    Other diseases have also resulted from the overcrowded and unsanitary methods of raising pigs ( swine flu ) and chickens ( avian flu ).
    Is it time that the world demands the ending of these wet markets ( especially the exotic animals part ), and other unsanitary livestock activities ?

    China wet market are not only an important source of urban food, they also provides a source of fresh food.  Tho' the communist regime has extensive power (recall the temporary ban on  Beijing automobile travel during Olympics) permanently shutting down may lead to social unrest in cities.  The world has made many demands on China - why would another have any substance? 

  5. Please read the protocol  and results as well as the conclusions.   Published or not, it has some flaws.  As can be seen with the top graphs, inconsistent challenge inoculum titers and more importantly LOD's biased (by about a log) in favor of copper treatment.   If cardboard had the same LOD, it would appear nearly as effective as copper.

  6. Thanks Phi

    A significant but trivial change in platelet count (treatment v control) was observed but was not shown to be clinically relevant.    As authors noted - There is still no specific treatment for dengue.  This publication does not appear to support your excitement for papaya juice.  What in this study did you see as compelling?

    Methods are so poorly described that it would be impossible to precisely reproduce this study without contacting authors for more information.  We don;t know papaya juice dosing parameters or how platelet were counted. 

    1) Dosing and relevant testing were not made clear.  " Patients in the intervention group received fresh juice from 50 grams of C. papaya leaves, once daily, 15 minutes after breakfast for 3 consecutive days."  I guess we can assume intervention group subjects drank the juice but we do not know when 48 hours of blood testing was initiated relative to consumption.

    2) The critical parameter evaluated was platelet count and NO method was identified for this analysis.  Only "The haematological and biochemical tests were conducted by the Pathology Department at Hospital Tengku Ampuan Rahimah, Klang and the validated results were later traced and recorded."

    MORE Importantly - Results are not compelling

    1) Authors noted "Study on the treatment effect of CPLJ on platelet count regardless of time did not show any significant difference in mean platelet count between intervention and control group."  However, if they dissect time point they did find what in effect was a trivial difference.  " However, analysis of the effect of CPLJ over the study period (time and treatment effect) showed that there was a significant interaction between treatment groups and time."

    2) . Normal platelet counts are 150,00-450,000 per microliter.  This report refers to platelet counts but offers no number per any volume.    Fig. 1 reports platelet counts as a simple  number  (no volume identified) difference of treatment v. control.   There was  trivial difference between 1 hour and 40/48 hour time points although authors managed to find a significance in comparison of 0 and 40/48 hour v control.  Look at Fig 1 -  1 hour is really not that much different than 40 and 48 whatever its  statistical difference. 

     

  7. Think the evidence is a bit weak to support "  Consumption of papain leaf extract can probably help in fighting Covid-19 infection..."

    Ahmad (2011)  rported in a pretty obscure journal treatment of a single patient observed minor CBC changes and "patient feelings" and Kumar et al (2015) reported statistically significant but minor CBC changes and observed treated patients (there was no apparent control group) "started to recover".  Pandey et al. (2016) offered a literature search for antiinflammatory and immunomodulation citation with ""papaya" and concluded "Although in vitro and in vivo studies have shown that papaya extracts and papaya-associated phytochemicals possess anti-inflammatory and immunomodulatory properties, clinical studies are lacking."  Did not see that they addressed dengue as implied above.  Norhamad et al. 2019 saw change in cytokine level -with papaya leaf extract fed infected mice, did not see a reported therapeutic benefit. observed in the paper

    Papaya extracts may have anti-inflammatory and immunomodulation efficacy - that does not translate to cure of viral disease - esp. coronavirus for which there re no data.

  8. I think  I understand but don;t think I can help..  From 2nd link, you should see two layers - an upper chloroform layer and an aqueous lower layer - assume precipitated material in the  middle.  With lysis/chloroform addition, you certainly should have seen both layers.    Suppose it's possible that excessive mixing  might have effected an emulsion but hard to see that as stable.  Suggest you call the Qiagen folks for help.

  9. 8 hours ago, Externet said:

    Thanks, gentlemen.

    Searched with not enough success...  Is there any commercial/municipal radioactive treatment for potable water ?   Seen it is done at some food packing factories,  but the web mentions mostly the reverse, removal of radiation contaminants from water.

    And what would such ionizing irradiation get rid of in water ?  How does the medicine industry purifies their water for manufacturing/research purposes ?

    Radiation?  Do you mean UV treatment?  Can be used but bacteria will grow in distribution subsequent to treatment.  Chlorine treatment is effective and the low levels of residual chlorine inhibit subsequent growth.

  10.  

    Quinine/chloroquine efficacy vs viral replication - including coronavirus , is not new.  Authors of recent report on Chinese epidemic coronavirus ignored/missed a review that wasn't very encouraging.

    Quinine/chloroquine efficacy vs. viral (Zika, herpes simplex, dengue, influenza) replication is apparently well known - e.g. .  https://escholarship.org/uc/item/8ws167fr  and  https://www.ncbi.nlm.nih.gov/pubmed/30055216  and https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5192383/.   These reports date as far back as  the 1970's - https://link.springer.com/article/10.1007/BF01250299.  Most report in vitro efficacy but and efficacy was shown vs CORONAVIRUS in vivo in live animal model  > 10 years ago - https://aac.asm.org/content/53/8/3416.short

    Typically, news media report this as NEW and EXCITING.  Zhang et al in their recent report of efficacy vs the Chinese epidemic  coronavirus offer "Chloroquine, a widely-used anti-malarial and autoimmune disease drug, has recently been reported as a potential broadspectrum antiviral drug.8,9 Chloroquine is known to block virus infection by increasing endosomal pH required for virus/ cell fusion, as well as interfering with the glycosylation of cellular receptors of SARS-CoV.10 "    Ref # 9 reported in efficacy in vivo animal model vs. influenza virus in  2013.

    recent review of limited clinical testing did not encourage.

    Microorganisms 2020, 8(1), 85; https://doi.org/10.3390/microorganisms8010085

    Review
    The Use of Antimalarial Drugs against Viral Infection
    Nevertheless, some drugs have already been used in several clinical trials, as summarized in Table 1. Most of them regard the use of antimalarial drugs against HIV infection, but some of them failed, and for others, the final results are not available. Although these outcomes can seem discouraging, at least four clinical trials deserve attention: The one on the use of AS against HCMV, with particular regard to the drug-resistant strains, the one targeting CHIKV with CQ, and the other two very innovative and ongoing trials on the use of AS against HPV for the treatment of anal and cervical intraepithelial high-grade neoplasia.
    Based on these observations, we can state that the use of antimalarial drugs might be useful, especially in cases of antiviral resistance and in light of the emergence of many viruses against which effective drugs are not available.
  11. Did not see sleep deprivation cited as major factor in the linked Guardian article and in any case suggest caution in putting too much faith in Guardian.  But you are correct - sleep deprivation is certainly a factor affecting immune function - e.g. https://academic.oup.com/sleep/article/38/9/1353/2417971

    "Locked in with" affected family members would expose one to the virus - not sure what this has to do with sleep deprivation.    If caring for family members disruptssleep - then we'd assume that would increase risk.

  12. Quinine is not chloroquine and it's a profound leap from efficacy of DMSO-solubilized active in culture (cell line of green monkey kidney cells) to effective human treatment by oral consumption of tonic water.    Suggest folks read the actual work when it's av (as here) rather than relying on "news" reports.   Here's the letter (it does lack some detail) and please remember - whatever the credentials of its 1st author Manli Wang, this is from China.  We should await other labs reproducing this study and some level of efficacy in relevant or projected practical application   https://www.nature.com/articles/s41422-020-0282-0.pdf

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