STUDY OF ENHANCED ANTI-INFLAMMATORY POTENTIAL OF NIGELLA SATIVA IN TOPICAL NANOFORMULATION

  • Faisal Obaid Alotaibi College of Pharmacy (Boys), Al-Dawadmi Campus, Shaqra University, P.O.Box 11961, Riyadh, Kingdom of Saudi Arabia
  • Gulam Mustafa College of Pharmacy (Boys), Al-Dawadmi Campus, Shaqra University, P.O.Box 11961, Riyadh, Kingdom of Saudi Arabia
  • Alka Ahuja Department of Pharmacy, Oman Medical College, P.O. Box. 620, P.C. 130, Azaiba, Muscat, Sultanate of Oman, OMAN

Abstract

Objective: Formulate a nanocarrier for enhancing the anti-inflammatory activity of thymoquinone (Tq), a major active constituent of Nigella sativa.

Methods: Nanoformulation of Tq was developed by low energy emulsification techniques. NanoTqs were pre-screened by different thermodynamic stability tests, followed by in vitro release, zeta potential, viscosity, the transmittance (%), globule size distribution and ex vivo studies. The morphology of the optimized NanoTq was determined by transmission electron microscopy (TEM) which revealed fairly spherical shape and good correlation with particle size distribution study. The formulation used for assessment of the anti-inflammatory potential and permeability enhancement contained mixture of essential oil of Nigella sativa: Capryol 90 (3:7, 10%, v/v), Tween 80 (21.75%, v/v), PEG 400 (7.25%, v/v) and double distilled water (61%, v/v).

Results: The in vitro permeation of Tq from optimized formulations was found extremely significant (p<0.001) in comparison to apiTq. The steady state flux (Jss), the permeability coefficient (Kp) and enhancement ratio (Er) of NanoTq gel was determined and compared with apiTq. The comparative anti-inflammatory effects of the optimized formulations NanoTq, apiTq and DicloGel was assessed on the edema in the carrageenan-induced paw model in Wistar rats. Therapeutic potential of NanoTq was found statistically extremely significant (P<0.0001) compared to apiTq and insignificant comparable with standard DicloGel. Storage stability of NanoTq showed insignificant changes in the zeta potential, droplet size and was free from any physical instability.

Conclusion: The optimized nano formulation with a lower dose of Tq showed better anti-inflammatory effects, indicating greater absorption capability through the stratum corneum.

Keywords: Thymoquinone, Pseudo-ternary phase diagram, Stress stability, Nanoemulsion, Anti-inflammatory, Flux

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How to Cite
Alotaibi, F. O., G. Mustafa, and A. Ahuja. “STUDY OF ENHANCED ANTI-INFLAMMATORY POTENTIAL OF NIGELLA SATIVA IN TOPICAL NANOFORMULATION”. International Journal of Pharmacy and Pharmaceutical Sciences, Vol. 10, no. 7, July 2018, pp. 41-51, doi:10.22159/ijpps.2018v10i7.22966.
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