Publications by authors named "Madan Sai Poka"

Bedaquiline is a drug used for the treatment of multidrug-resistant TB in adults and children that is currently only commercially available in tablet form. The present study was aimed at preparing nanoemulsion (NE) of BDQ using natural vegetable oils to deliver BDQ. The optimisation of surfactant mixtures was undertaken using Design of Experiments (DoE), specifically an optimal mixture design.

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Bedaquiline (BDQ) is a drug used to treat multidrug-resistant tuberculosis (MDR-TB). It exhibits exposure-dependent efficacy in eliminating Mycobacterium tuberculosis (Mtb). An easy, efficient and precise reverse-phase ultrafast liquid chromatography (RP-UFLC) method was developed to validate the free base of the antitubercular medication BDQ.

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Article Synopsis
  • Preformulation investigations are essential for developing successful drug formulations, focusing on drug structure, excipients, composition, and physical properties, particularly for nanoemulsions.* -
  • This study aimed to evaluate the properties of bedaquiline (BDQ) and select suitable excipients for self-emulsifying BDQ-loaded nanoemulsions, using methods like HPLC for solubility and FTIR for compatibility assessment.* -
  • Results showed BDQ has the highest solubility in olive oil (3.45 mg/ml), and compatibility studies indicated no significant interactions with selected excipients, confirming the effectiveness of the preformulation process.*
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Crystalline carriers such as dextrose, sucrose, galactose, mannitol, sorbitol, and isomalt have been reported to increase the solubility, and dissolution rates of poorly soluble drugs when employed as carriers in solid dispersions (SDs). However, synthetic polymers dominate the preparation of drugs: excipient SDs have been created in recent years, but these polymer-based SDs exhibit the major drawback of recrystallisation upon storage. Also, the use of high-molecular-weight polymers with increased chain lengths brings forth problems such as increased viscosity and unnecessary bulkiness in the resulting dosage form.

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  • The tumor microenvironment (TME) is made up of both cancerous and non-cancerous cells, affecting how cancer develops and progresses.
  • Reactive oxygen species (ROS) play a dual role; at low levels, they help cancer cells grow and spread, while at high levels, they can cause cell damage and death.
  • Nanotechnology is being explored to improve cancer treatments by delivering ROS-inducing agents directly to tumors, which could minimize harm to healthy cells and enhance treatment effectiveness.
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Article Synopsis
  • * Research has advanced in understanding the disease pathways, aiming for targeted drug therapies for these disorders despite challenges posed by the BBB.
  • * Lipid-based nanocarriers show promise for improving drug delivery to the central nervous system, but none have yet gained market approval, emphasizing the need for technological innovations for scalable and affordable treatments.
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