Fluoroquinolone use and chloroquine resistance development

Discussion in 'Canada Pharmacy Online' started by doronchenko, 03-Mar-2020.

  1. hermit Moderator

    Fluoroquinolone use and chloroquine resistance development

    According to legend it was first brought to Europe by a Countess who had been treated with it in Peru in the 1600s. In 1820, two French chemists isolated quinine from the cinchona bark and quinine became a treatment of reference for intermittent fever throughout the world. Quinine remains an important and effective treatment for malaria today, despite sporadic observations of quinine resistance.

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    Broad use of fluoroquinolones has been followed by emergence of resistance, which has been due mainly to chromosomal mutations in genes encoding the subunits of the drugs' target enzymes, DNA gyrase and topoisomerase IV, and in genes that affect the expression of diffusion channels in the outer membrane and multidrug-resistance efflux systems. The discovery of nalidixic acid in 1962, and its introduction for clinical use in 1967, marks the beginning of five decades of quinolone development and use. Because the use of broad-spectrum antibiotics encourages the spread of multidrug-resistant strains and the development of Clostridium difficile infections, treatment guidelines often recommend minimizing the use of fluoroquinolones and other broad-spectrum antibiotics in less severe infections and in those in which risk factors for multidrug resistance are not present.

    These compounds belonged to a new class of antimalarials, the four-amino quinolines. Research by German scientists to discover a substitute for quinine led to the synthesis in 1934 of Resochin (chloroquine) and Sontochin (3-methyl-chloroquine).

    Fluoroquinolone use and chloroquine resistance development

    Factors Influencing Fluoroquinolone Resistance, The quinolones Decades of development and use

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  3. Fluoroquinolones also have been associated with the development of bacterial resistance and Clostridium difficile-associated diarrhea. The benefits of the fluoroquinolones e.g. broad spectrum of activity and high oral bioavailability and the risks of potential undesired side effects must be considered at the point of prescribing.

    • AAP report details use of fluoroquinolones in children.
    • Quinolone antibiotic - Wikipedia.
    • Fluoroquinolone Resistance Request PDF.

    Fluoroquinolones Their Connection to Older Anti-Malarial Drugs. “The pharmacore of the fluoroquinolones and chloroquine are similar. In fact the origins of the quinolone class are from the use of chloroquine as an antimalarial. This article actually deals with the fact that the use of chloroquine in tropical countries is producing a. To evaluate the association between use of HCQ and development of fluoroquinolone resistance in Escherichia coli among patients with RA and UTI. Methods Retrospective case-control study. We evaluated 225 patients with RA and UTI. Cases were defined as patients receiving HCQ, and controls as those receiving a different treatment. Thus, fluoroquinolone use is typically reserved for cases in which the benefits clearly outweigh the risks. The spectrum of activity, mechanisms of action and resistance, important resistance patterns, and adverse effects of commonly available fluoroquinolones ie, ciprofloxacin, levofloxacin, moxifloxacin, delafloxacin will be reviewed here.

  4. Maklein Moderator

    Apoptosis is a form of programmed cell death which is mediated by cysteine proteases called caspases. Autophagy inhibitor chloroquine induces apoptosis of. Necroptosis promotes autophagy-dependent upregulation of DAMP. The molecular relationships between apoptosis, autophagy and.
  5. flormouffew Well-Known Member

    Sickle cell anemia Genetic and Rare Diseases Information. Sickle cell anemia is a disease in which the body produces abnormally shaped red blood cells that have a crescent or sickle shape. These cells do not last as long as normal, round, red blood cells, which leads to anemia low number of red blood cells. The sickle cells also get stuck in blood vessels, blocking blood flow. Signs and symptoms of sickle cell disease usually begin in early.

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  6. Seyshas Well-Known Member

    Hydroxychloroquine Plaquenil Side Effects & Dosage for Malaria Hydroxychloroquine Plaquenil is a drug that is classified as an anti-malarial drug. Plaquenil is prescribed for the treatment or prevention of malaria. It is also prescribed for the treatment of rheumatoid arthritis, lupus, and the side effects of lupus such as hair loss, joint pain, and more.

    Plaquenil Hydroxychloroquine Uses, Dosage, Side Effects.