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Elsewedy HS, Alshehri S, Alsammak NS, Abou Chahin NF, Alotaibi MS, Alshammari RA, Shehata TM, Aldhubiab B, Soliman WE. Investigating topical delivery of erythromycin laden into lipid nanocarrier for enhancing the anti-bacterial activity. Saudi Pharm J 2024; 32:102152. [PMID: 39165579 PMCID: PMC11334861 DOI: 10.1016/j.jsps.2024.102152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Accepted: 07/26/2024] [Indexed: 08/22/2024] Open
Abstract
Skin infections considered as one of the predominant disorders that could greatly influence humans. Topical drug delivery is believed to be an effective substitute to systemically delivered medication for skin disorders management. Erythromycin has been proven to retain anti-bacterial activity. Based on that, the aim of existent study is to develop a proper nanocarrier, namely; nanoemulsion using tea tree oil including Erythromycin. Applying quality by design approach, the optimized nanoemulsion was selected based on number of independent variables namely; particle size and in vitro release study. Yet, in order to get appropriate topical application, the optimized nanoemulsion was combined with previously prepared hydrogel base to provide Erythromycin based nanoemulgel. The developed nanoemulgel was assessed for its organoleptic and physical characters to ensure its suitability for topical application. Stability study was implemented over three months after being kept in two distinct environments. Eventually, the antibacterial behavior of the preparation was investigated on MRSA to verify the expected antibacterial improvement and validate the effectiveness of the developed nanocarrier. The formulation showed consistent appearance, with pH (6.11 ± 0.19), viscosity (10400 ± 1275 cP), spreadability (54.03 ± 2.3 mm), extrudability (80.36 ± 3.15 g/cm2) and drug content (99.3 ± 0.46 %) that seemed to be satisfied for topical application. It could provide 48.1 ± 4.2 % releases over 6 h in addition to be stable at room temperature and at refrigerator. Ultimately, the formula showed a significant antibacterial activity against MRSA proving the combination and the nanocarrier effectiveness.
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Affiliation(s)
- Heba S. Elsewedy
- Department of Pharmaceutical Sciences, College of Pharmacy, AlMaarefa University, Dariyah, Riyadh 13713, Saudi Arabia
| | - Sultan Alshehri
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Naheda S. Alsammak
- Department of Pharmaceutical Sciences, College of Pharmacy, AlMaarefa University, Dariyah, Riyadh 13713, Saudi Arabia
| | - Nada F. Abou Chahin
- Department of Pharmaceutical Sciences, College of Pharmacy, AlMaarefa University, Dariyah, Riyadh 13713, Saudi Arabia
| | - Manal S. Alotaibi
- Department of Pharmaceutical Sciences, College of Pharmacy, AlMaarefa University, Dariyah, Riyadh 13713, Saudi Arabia
| | - Rehab A. Alshammari
- Department of Pharmaceutical Sciences, College of Pharmacy, AlMaarefa University, Dariyah, Riyadh 13713, Saudi Arabia
| | - Tamer M. Shehata
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Saudi Arabia
- Department of Pharmaceutics, College of Pharmacy, Zagazig University, Zagazig 44519, Egypt
| | - Bandar Aldhubiab
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Saudi Arabia
| | - Wafaa E. Soliman
- Department of Biomedical Sciences, College of Clinical Pharmacy, King Faisal University, Alhofuf 36362, Al-Ahsa, Saudi Arabia
- Department of Microbiology and Immunology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, 11152, Mansoura, Egypt
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Shehata TM, Aldhubiab B, Elsewedy HS. Virgin Coconut Oil-based Nanostructured Lipid Carrier Improves the Hypolipidemic Effect of Rosuvastatin. Int J Nanomedicine 2024; 19:7945-7961. [PMID: 39130688 PMCID: PMC11313597 DOI: 10.2147/ijn.s463750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Accepted: 07/25/2024] [Indexed: 08/13/2024] Open
Abstract
Background Monitoring noncommunicable diseases is regarded as a critical concern that has to be managed in order to avoid a wide variety of complications such as increasing blood lipid levels known as dyslipidemia. Statin drugs, mostly, Rosuvastatin (RSV) was investigated for its effectiveness in treating dyslipidemia. However, reaching the most efficient treatment is essential and improving the effect of RSV is crucial. Therefore, a combination therapy was a good approach for achieving significant benefit. Although RSV is hydrophobic, which would affect its absorption and bioavailability following oral administration, overcoming this obstacle was important. Purpose To that end, the purpose of the present investigation was to incorporate RSV into certain lipid-based nanocarriers, namely, nanostructured lipid carrier (NLC) prepared with virgin coconut oil (CCO). Methods The optimized RSV-NLC formula was selected, characterized and examined for its in vitro, kinetic, and stability profiles. Eventually, the formula was investigated for its in vivo hypolipidemic action. Results The optimized NLC formulation showed a suitable particle size (279.3±5.03 nm) with PDI 0.237 and displayed good entrapment efficiency (75.6±1.9%). Regarding in vitro release, it was efficiently prolonged for 24 h providing 93.7±1.47%. The optimized formula was established to be stable after 3 months storage at two different conditions; 4°C and 25°C. Importantly, including CCO in the development of RSV-NLC could impressively enhance lowering total cholesterol level in obese rat models, which endorse the potential synergistic action between RSV and CCO. Conclusion The study could elucidate the impact of developing NLC using CCO for improving RSV anti-hyperlipidemic activity.
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Affiliation(s)
- Tamer M Shehata
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Alhofuf, Al-Ahsa, 36362, Saudi Arabia
- Department of Pharmaceutics, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Bandar Aldhubiab
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Alhofuf, Al-Ahsa, 36362, Saudi Arabia
| | - Heba S Elsewedy
- Department of Pharmaceutical Sciences, College of Pharmacy, AlMaarefa University, Riyadh, 11597, Saudi Arabia
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Elsewedy HS, Shehata TM, Genedy SM, Siddiq KM, Asiri BY, Alshammari RA, Bukhari SI, Kola-Mustapha AT, Ramadan HA, Soliman WE. Enhancing the Topical Antibacterial Activity of Fusidic Acid via Embedding into Cinnamon Oil Nano-Lipid Carrier. Gels 2024; 10:268. [PMID: 38667687 PMCID: PMC11049292 DOI: 10.3390/gels10040268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 04/02/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
Presently, antimicrobial resistance is of great risk to remarkable improvements in health conditions and infection management. Resistance to various antibiotics has been considered a great obstacle in their usage, necessitating alternative strategies for enhancing the antibacterial effect. Combination therapy has been recognized as a considerable strategy that could improve the therapeutic influence of antibacterial agents. Therefore, the aim of this study was to combine the antibacterial action of compounds of natural origin like fusidic acid (FA) and cinnamon essential oil (CEO) for synergistic effects. A distinctive nanoemulsion (NE) was developed using cinnamon oil loaded with FA. Applying the Box-Behnken design (BBD) approach, one optimized formula was selected and integrated into a gel base to provide an FA-NE-hydrogel for optimal topical application. The FA-NE-hydrogel was examined physically, studied for in vitro release, and investigated for stability upon storage at different conditions, at room (25 °C) and refrigerator (4 °C) temperatures, for up to 3 months. Ultimately, the NE-hydrogel preparation was inspected for its antibacterial behavior using multidrug-resistant bacteria and checked by scanning electron microscopy. The FA-NE-hydrogel formulation demonstrated a pH (6.32), viscosity (12,680 cP), and spreadability (56.7 mm) that are acceptable for topical application. The in vitro release could be extended for 6 h, providing 52.0%. The formulation was stable under both test conditions for up to 3 months of storage. Finally, the FA-NE-hydrogel was found to inhibit the bacterial growth of not only Gram-positive but also Gram-negative bacteria. The inhibition was further elucidated by a scanning electron micrograph, indicating the efficiency of CEO in enhancing the antibacterial influence of FA when combined in an NE system.
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Affiliation(s)
- Heba S. Elsewedy
- Department of Pharmaceutical Sciences, College of Pharmacy, AlMaarefa University, Diriyah 13713, Saudi Arabia
| | - Tamer M. Shehata
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Alhofuf 36362, Saudi Arabia
- Department of Pharmaceutics, College of Pharmacy, Zagazig University, Zagazig 44519, Egypt
| | - Shaymaa M. Genedy
- Department of Pharmaceutical Sciences, College of Pharmacy, AlMaarefa University, Diriyah 13713, Saudi Arabia
| | - Khuzama M. Siddiq
- Department of Pharmaceutical Sciences, College of Pharmacy, AlMaarefa University, Diriyah 13713, Saudi Arabia
| | - Bushra Y. Asiri
- Department of Pharmaceutical Sciences, College of Pharmacy, AlMaarefa University, Diriyah 13713, Saudi Arabia
| | - Rehab A. Alshammari
- Department of Pharmaceutical Sciences, College of Pharmacy, AlMaarefa University, Diriyah 13713, Saudi Arabia
| | - Sarah I. Bukhari
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Adeola T. Kola-Mustapha
- Department of Pharmaceutical Sciences, College of Pharmacy, Alfaisal University, Riyadh 11533, Saudi Arabia
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmaceutical Sciences, University of Ilorin, Ilorin 240003, Nigeria
| | - Heba A. Ramadan
- Department of Microbiology and Immunology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Mansoura 11152, Egypt
| | - Wafaa E. Soliman
- Department of Microbiology and Immunology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Mansoura 11152, Egypt
- Department of Biomedical Sciences, College of Clinical Pharmacy, King Faisal University, Alhofuf 36362, Saudi Arabia
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Elsewedy HS, Shehata TM, Alqahtani NK, Khalil HE, Soliman WE. Date Palm Extract ( Phoenix dactylifera) Encapsulated into Palm Oil Nanolipid Carrier for Prospective Antibacterial Influence. PLANTS (BASEL, SWITZERLAND) 2023; 12:3670. [PMID: 37960029 PMCID: PMC10648499 DOI: 10.3390/plants12213670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 10/18/2023] [Accepted: 10/20/2023] [Indexed: 11/15/2023]
Abstract
It is worthwhile to note that using natural products today has shown to be an effective strategy for attaining the therapeutic goal with the highest impact and the fewest drawbacks. In Saudi Arabia, date palm (Phoenix dactylifera) is considered the principal fruit owing to its abundance and incredible nutritional benefits in fighting various diseases. The main objective of the study is to exploit the natural products as well as the nanotechnology approach to obtain great benefits in managing disorders. The present investigation focused on using the powder form of date palm extract (DPE) of Khalas cultivar and incorporates it into a nanolipid formulation such as a nanostructured lipid carrier (NLC) prepared with palm oil. Using the quality by design (QbD) methodology, the most optimized formula was chosen based on the number of assigned parameters. For more appropriate topical application, the optimized DP-NLC was combined with a pre-formulated hydrogel base forming the DP-NLC-hydrogel. The developed DP-NLC-hydrogel was evaluated for various physical properties including pH, viscosity, spreadability, and extrudability. Additionally, the in vitro release of the formulation as well as its stability upon storage under two different conditions of room temperature and refrigerator were investigated. Eventually, different bacterial strains were utilized to test the antibacterial efficacy of the developed formulation. The optimized DP-NLC showed proper particle size (266.9 nm) and in vitro release 77.9%. The prepared DP-NLC-hydrogel showed acceptable physical properties for topical formulation, mainly, pH 6.05, viscosity 9410 cP, spreadability 57.6 mm, extrudability 84.5 (g/cm2), and in vitro release 42.4%. Following three months storage under two distinct conditions, the formula exhibited good stability. Finally, the antibacterial activity of the developed DP-NLC-hydrogel was evaluated and proved to be efficient against various bacterial strains.
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Affiliation(s)
- Heba S. Elsewedy
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Alhofuf 31982, Al-Ahsa, Saudi Arabia
- Department of Pharmaceutical Sciences, College of Pharmacy, Almaarefa University, Dariyah, Riyadh 13713, Saudi Arabia
| | - Tamer M. Shehata
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Alhofuf 31982, Al-Ahsa, Saudi Arabia
- Department of Pharmaceutics, College of Pharmacy, Zagazig University, Zagazig 44519, Egypt
| | - Nashi K. Alqahtani
- Department of Food Science and Technology, College of Agriculture, King Faisal University, Alhofuf 31982, Al-Ahsa, Saudi Arabia
- Date Palm Research Center of Excellence, King Faisal University, Alhofuf 31982, Al-Ahsa, Saudi Arabia
| | - Hany Ezzat Khalil
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Alhofuf 31982, Al-Ahsa, Saudi Arabia
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University, Minia 61519, Egypt
| | - Wafaa E. Soliman
- Department of Biomedical Sciences, College of Clinical Pharmacy, King Faisal University, Alhofuf 36362, Al-Ahsa, Saudi Arabia
- Department of Microbiology and Immunology, Faculty of Pharmacy, Delta University for Science and Technology, Mansoura 11152, Egypt
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Czerniel J, Gostyńska A, Jańczak J, Stawny M. A critical review of the novelties in the development of intravenous nanoemulsions. Eur J Pharm Biopharm 2023; 191:36-56. [PMID: 37586663 DOI: 10.1016/j.ejpb.2023.08.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/10/2023] [Accepted: 08/12/2023] [Indexed: 08/18/2023]
Abstract
Nanoemulsions have gained increasing attention in recent years as a drug delivery system due to their ability to improve the solubility and bioavailability of poorly water-soluble drugs. This systematic review aimed to collect and critically analyze recent novelties in developing, designing, and optimizing intravenous nanoemulsions appearing in articles published between 2017 and 2022. The applied methodology involved searching two electronic databases PubMed and Scopus, using the keyword "nanoemulsion" in combination with "intravenous" or "parenteral". The resulting original articles were classified by the method of preparation into different categories. An overview of the current methods used for the preparation of such formulations, including high- and low-energy emulsification, was provided. The advantages and disadvantages of these methods were discussed, as well as their potential impact on the properties of the developed intravenous nanoemulsions. The problem of inconsistency in intravenous nanoemulsion terminology may lead to misunderstandings and misinterpretations of their properties and applications was also undertaken. Finally, the regulatory aspects of intravenous nanoemulsions, the state of the art in the field of intravenous emulsifiers, and the future perspectives were presented.
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Affiliation(s)
- Joanna Czerniel
- Chair and Department of Pharmaceutical Chemistry, Poznan University of Medical Sciences, 6 Grunwaldzka, 60 - 780 Poznan, Poland
| | - Aleksandra Gostyńska
- Chair and Department of Pharmaceutical Chemistry, Poznan University of Medical Sciences, 6 Grunwaldzka, 60 - 780 Poznan, Poland.
| | - Julia Jańczak
- Chair and Department of Pharmaceutical Chemistry, Poznan University of Medical Sciences, 6 Grunwaldzka, 60 - 780 Poznan, Poland
| | - Maciej Stawny
- Chair and Department of Pharmaceutical Chemistry, Poznan University of Medical Sciences, 6 Grunwaldzka, 60 - 780 Poznan, Poland
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Svolacchia F, Brongo S, Catalano A, Ceccarini A, Svolacchia L, Santarsiere A, Scieuzo C, Salvia R, Finelli F, Milella L, Saturnino C, Sinicropi MS, Fabrizio T, Giuzio F. Natural Products for the Prevention, Treatment and Progression of Breast Cancer. Cancers (Basel) 2023; 15:cancers15112981. [PMID: 37296944 DOI: 10.3390/cancers15112981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 05/23/2023] [Accepted: 05/26/2023] [Indexed: 06/12/2023] Open
Abstract
In this review, we summarize the most used natural products as useful adjuvants in BC by clarifying how these products may play a critical role in the prevention, treatment and progression of this disease. BC is the leading cancer, in terms of incidence, that affects women. The epidemiology and pathophysiology of BC were widely reported. Inflammation and cancer are known to influence each other in several tumors. In the case of BC, the inflammatory component precedes the development of the neoplasm through a slowly increasing and prolonged inflammation that also favors its growth. BC therapy involves a multidisciplinary approach comprising surgery, radiotherapy and chemotherapy. There are numerous observations that showed that the effects of some natural substances, which, in integration with the classic protocols, can be used not only for prevention or integration in order to prevent recurrences and induce a state of chemoquiescence but also as chemo- and radiosensitizers during classic therapy.
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Affiliation(s)
- Fabiano Svolacchia
- Department of Medical-Surgical Sciences and Biotechnologies, La Sapienza University, 00118 Rome, Italy
- Department of Medical Sciences, Policlinic Foundation Tor Vergata University, 00133 Rome, Italy
| | - Sergio Brongo
- Department of Plastic Surgery, University of Salerno, 84131 Campania, Italy
| | - Alessia Catalano
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", 70126 Bari, Italy
| | - Agostino Ceccarini
- U.O.C. Primary Care and Territorial Health, Social and Health Department, State Hospital, 47893 San Marino, San Marino
| | - Lorenzo Svolacchia
- Department of Medical-Surgical Sciences and Biotechnologies, La Sapienza University, 00118 Rome, Italy
| | - Alessandro Santarsiere
- Department of Science, University of Basilicata, 85100 Potenza, Italy
- CNRS, UMR 7042-LIMA, ECPM, Université de Strasbourg, Université de Haute-Alsace, 67000 Strasbourg, France
| | - Carmen Scieuzo
- Department of Science, University of Basilicata, 85100 Potenza, Italy
- Spinoff XFlies s.r.l., University of Basilicata, 85100 Potenza, Italy
| | - Rosanna Salvia
- Department of Science, University of Basilicata, 85100 Potenza, Italy
- Spinoff XFlies s.r.l., University of Basilicata, 85100 Potenza, Italy
| | | | - Luigi Milella
- Department of Science, University of Basilicata, 85100 Potenza, Italy
| | - Carmela Saturnino
- Department of Science, University of Basilicata, 85100 Potenza, Italy
| | - Maria Stefania Sinicropi
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, Italy
| | - Tommaso Fabrizio
- Department of Plastic Surgery, IRCCS, Referral Cancer Center of Basilicata, 85028 Rionero in Vulture, Italy
| | - Federica Giuzio
- U.O.C. Primary Care and Territorial Health, Social and Health Department, State Hospital, 47893 San Marino, San Marino
- Department of Science, University of Basilicata, 85100 Potenza, Italy
- Spinoff TNcKILLERS s.r.l., University of Basilicata, 85100 Potenza, Italy
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Tea Tree Oil Nanoemulsion-Based Hydrogel Vehicle for Enhancing Topical Delivery of Neomycin. Life (Basel) 2022; 12:life12071011. [PMID: 35888099 PMCID: PMC9317510 DOI: 10.3390/life12071011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/03/2022] [Accepted: 07/05/2022] [Indexed: 12/14/2022] Open
Abstract
The present investigation aims to improve the antimicrobial influence of certain antibacterial drugs, namely, neomycin (NEO), exploiting the benefits of natural oils such as tea tree oil (TTO). Therefore, a distinctive nanolipid formulation, namely, a nanoemulsion (NE), was developed using a Central Composite Factorial Design (CCD) approach depending on the amount of TTO and tween 80 as surfactant. The optimized NEO-NE formula exhibiting minimum globular size and maximum in vitro release was selected. For efficient topical delivery, NEO-NE was incorporated into a pre-formulated hydrogel. The developed NEO-NE-hydrogel was characterized by its physical characteristics such as pH, viscosity, and spreadability. Next, it was tested for stability under different conditions for 3 months. Ultimately, an irritation test was conducted followed by an antibacterial examination. The preparation demonstrated acceptable properties to be successfully applied topically. It showed non-significant changes in stability in both conditions up to 3 months storage when compared to a fresh preparation. It exhibited no irritation when applied on hairless animal skin. Finally, TTO revealed a good inhibition for the bacterial growth that could improve the influence of NEO antibacterial activity, indicating the efficiency of NE containing NEO prepared with TTO to be a promising antibacterial nanocarrier.
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Hypolipidemic Activity of Olive Oil-Based Nanostructured Lipid Carrier Containing Atorvastatin. NANOMATERIALS 2022; 12:nano12132160. [PMID: 35807995 PMCID: PMC9267979 DOI: 10.3390/nano12132160] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 06/18/2022] [Accepted: 06/21/2022] [Indexed: 02/04/2023]
Abstract
Currently, hyperlipidemia is a growing health issue that is considered a risk factor for obesity. Controlling body weight and modifying life style in most of cases are not adequate and the condition requires medical treatment. Statin drugs (mainly Atorvastatin (ATO)), have been used broadly and for long time as medications for handling higher levels of lipid, especially bad cholesterol, which accordingly controls the prevalence of obesity. Still, the obstacle that stands in front of any formulation is the poor solubility of the drug. Low solubility of ATO came up with poor absorption as well as poor bioavailability. This paved the way for the present study, which aimed to exploit nanotechnology and develop certain nanolipid carriers that could accommodate hydrophobic drugs, such as ATO. Nanostructured lipid carrier (NLC) containing ATO was fabricated using olive oil. Olive oil is natural plant oil possessing confirmed hypolipidemic activity that would help in improving the efficacy of the formulation. Via applying the Quality by Design (QbD) approach, one NLC formula was selected to be optimized based on appropriate size and higher entrapment. Optimized ATO-NLC was scrutinized for zeta potential, in vitro study and kinetic profile. Moreover, stability testing and in vivo hypolipidemic behavior was conducted. The optimized NLC formulation seemed to show particle size (254.23 nm) with neutral zeta potential (−1.77 mV) and entrapment efficiency (69.56%). The formulation could be prolonged for 12 h and provided higher % of release (97.17%). Stability testing confirmed the role of modifying the surface of the formulation with PEG-DSPE in providing a highly stable formulation that could withstand three months storage in two altered conditions. Ultimately, optimized ATO-NLC could successfully lower total cholesterol level in rats induced with obesity and fed a high-fat diet. Remarkably, ATO-NLC prepared with olive oil, in addition to shielding its surface, would provide a stable formulation that holds up the synergistic action between olive oil and ATO.
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