Chloroquine blood to plasma ratio

Discussion in 'Canada Pharmaceuticals Online' started by ryabush, 18-Mar-2020.

  1. Fugu New Member

    Chloroquine blood to plasma ratio


    Knowing a drug’s potential for partitioning is critical in situations where the test drug has a high Log P (lipophilic). In this situation a significant portion of the drug may be taken up and held by red blood cells (RBCs).

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    Stability of chloroquine and desethylchloroquine in whole blood, plasma and DBS was investigated by exposing the samples to five freeze and thaw cycles. The samples were frozen at -80°C for 24 h for the first freeze cycle and 12–24 h for the following freezing cycles and thawed at room temperature for 2–3 h. Use this online calculator to convert whole of blood results to plasma results, and vice versa. Many blood glucose meters measure glucose level of the whole blood, whilst some just report the glucose levels of plasma – the fluid part of the blood. Neither of these methods of testing is more accurate, they are simply The Blood-To-Plasma Ratio and Protein binding assays provide our clients with important information that describes how their test molecule interacts with whole blood and plasma proteins. Knowing a drug’s potential for partitioning is critical in situations where the test drug has a high LogP lipophilic.

    When the combined knowledge of protein binding and blood partitioning is understood investigators can make a better determination about whether they should collect whole blood, plasma, or serum for assaying pharmacokinetic behavior of the drug if animal or clinical ADME studies. For this reason, more informative data describing drug distribution in blood can be obtained by determining both the blood partitioning ratios and direct protein binding.

    Chloroquine blood to plasma ratio

    Specimen-handling, Serum, Plasma, Whole blood Serum., Convert Blood Results to Plasma Readings

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  4. Verapamil, chloroquine Figure 1 and 2 Detection method LC-MS/MS with internal standard Results blood to plasma ratio Figure 1. Blood to plasma ratio obtained for two reference compounds in 3 different species Figure 2. Comparison of in-house human blood to plasma ratio with literature values 1,2 1 Obach 1999, Drug Metab Dispos 27, 1350

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    Therefore, determining the blood-to-plasma ratio is important for deciding whether plasma or whole blood would provide more physiologically relevant pharmacokinetic parameters. For these studies, chloroquine is used as a positive control. Caco-2 Permeability Studies The time to peak concentration and the maximum concentration varied in various tissues and were higher than for plasma and red blood cells. 3. 3. The tissue to plasma concentration ratio increased with time up to 144th hr for some tissues while this ratio was still increasing at the 168th hr for other tissues. 4. 4. I have an assumption that plasma is a part of Blood and concentration in plasma should always be lessthan or equal to that in blood and hence, the ratio should be 1 or greater than 1. Thank you, Abhijith Back to the Top.

     
  5. choor User

    Chloroquine is the generic form of the brand-name prescription medicine Aralen, which is used to prevent and treat malaria — a mosquito-borne disease caused by a parasite — and to treat amebiasis, an infection of the intestines caused by a parasite. CDC - Malaria - Travelers - Choosing a Drug to Prevent Malaria Aralen Chloroquine - Aralen Chloroquine Uses, Dosage, Side Effects.
     
  6. wowa94 Guest

    In some cases, they may not be available in every strength or form as the brand-name drug. Long-Term Side Effects of Plaquenil for Rheumatoid. Plaquenil Side Effects Common, Severe, Long Term - Hydroxychloroquine Side Effects, Dosage, Uses, and More
     
  7. -EX- Guest

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    Hydroxychloroquine From Malaria to Autoimmunity SpringerLink