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Related Concept Videos

Pharmaceutical Alternatives: Stability-Related Therapeutic Nonequivalence01:22

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Generic intravenous (IV) drugs are considered bioequivalent to their branded counterparts due to their 100% bioavailability upon administration. However, variations in stability among different drug products can significantly influence their therapeutic performance, even if they are pharmaceutically equivalent.Cefuroxime, a prophylactic antimicrobial, is often used as a single-dose IV injection for patients undergoing coronary artery bypass grafting surgery. A 3 g dose typically provides...
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Challenges for cysteamine stabilization, quantification, and biological effects improvement.

Carla Atallah1,2, Catherine Charcosset2, Hélène Greige-Gerges1

  • 1Bioactive Molecules Research Laboratory, Doctoral School of Sciences and Technologies, Faculty of Sciences, Lebanese University, Lebanon.

Journal of Pharmaceutical Analysis
|January 11, 2021
PubMed
Summary

Cysteamine has many uses but suffers from poor stability and delivery. Encapsulation and nanoparticle systems can improve its properties and applications, especially in skin treatments.

Keywords:
CysteamineDetectionEncapsulationSkinStability

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Area of Science:

  • Biochemistry
  • Nanotechnology
  • Pharmacology

Background:

  • Cysteamine, an aminothiol from coenzyme A, has diverse biological roles.
  • Undesirable properties like bitter taste, odor, instability, and poor pharmacokinetics limit cysteamine's efficacy.
  • Current limitations necessitate advanced delivery and detection strategies.

Purpose of the Study:

  • To review encapsulation systems and derivatization techniques for cysteamine delivery.
  • To explore cysteamine's biological applications, with a focus on skin treatments.
  • To address challenges in cysteamine detection and quantification.

Main Methods:

  • Review of existing literature on cysteamine encapsulation systems.
  • Analysis of nanoparticle conjugation for improved delivery and detection.
  • Examination of derivatization agents for cysteamine quantification.
  • Compilation of data on biological and skin applications of cysteamine.

Main Results:

  • Encapsulation systems and nanoparticle conjugation can overcome cysteamine's limitations.
  • These methods improve pharmacokinetic profiles and intra-oral delivery.
  • Nanoparticle aggregation enhances colorimetric detection.
  • Derivatization is crucial for accurate cysteamine quantification due to its lack of chromophore and oxidation susceptibility.

Conclusions:

  • Advanced delivery systems are key to unlocking cysteamine's therapeutic potential.
  • Further research into encapsulation and nanoparticle-based delivery is warranted.
  • Cysteamine shows promise for various biological applications, particularly in dermatology.