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Munusamy R, Shanmugasundharam S. Improved gastric residence time of famotidine by raft-forming drug delivery system using DOE. Int J Immunopathol Pharmacol 2024; 38:3946320241249429. [PMID: 38721971 PMCID: PMC11084990 DOI: 10.1177/03946320241249429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Accepted: 04/08/2024] [Indexed: 05/12/2024] Open
Abstract
OBJECTIVE This study investigated the raft-forming suspension of famotidine as an anti-reflux formulation to improve the oral bioavailability of narrow absorption window drugs by enhancing gastric residence time (GRT) and preventing gastro-esophageal reflux disease (GERD). METHOD Various combinations of raft-forming agents, such as Tragacanth gum (TG), guar gum (GG), and xanthan gum (XG), were evaluated alongside sodium alginate (SA) to develop an effective raft. Preformulation studies and preliminary screening were conducted to identify the most suitable raft-forming agent, and GG was chosen due to its mucilaginous properties. The formulation was optimized using a 32 full factorial design, with the quantities of GG and SA as independent factors and apparent viscosity and in-vitro drug release (%) as dependent factors. The in vivo floating behavior study was performed for optimized and stabilized formulation. RESULTS Among the tested batches, F6 was selected as the optimized formulation. It exhibited desirable characteristics such as adequate raft weight for extended floating in gastric fluid, improved apparent viscosity, and a significant percentage of drug release at 12 h. A mathematical model was applied to the in-vitro data to gain insights into the drug release mechanism of the formulation. The stability of the suspension was assessed under accelerated conditions, and it demonstrated satisfactory stability. The formulation remains floating in the Rabbit stomach for more than 12 h. CONCLUSION It concludes that the developed formulation has enhanced bioavailability in the combination of GG and SA. The floating layer of the raft prevents acid reflux, and the famotidine is retained for an extended period of time in the gastric region, preventing excess acid secretion. The developed formulations are effective for stomach ulcers and GERD, with the effect of reducing acid secretion by H2 receptor antagonists.
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Affiliation(s)
- Rajalakshmi Munusamy
- Department of Pharmaceutics, SRM College of Pharmacy, SRMIST, Kattankulathur, India
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Kumar A, Mazumder R, Rani A, Pandey P, Khurana N. Novel Approaches for the Management of Type 2 Diabetes Mellitus: An Update. Curr Diabetes Rev 2024; 20:e051023221768. [PMID: 37888820 DOI: 10.2174/0115733998261903230921102620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 08/06/2023] [Accepted: 08/10/2023] [Indexed: 10/28/2023]
Abstract
Diabetes mellitus is an irreversible, chronic metabolic disorder indicated by hyperglycemia. It is now considered a worldwide pandemic. T2DM, a spectrum of diseases initially caused by tissue insulin resistance and slowly developing to a state characterized by absolute loss of secretory action of the β cells of the pancreas, is thought to be caused by reduced insulin secretion, resistance to tissue activities of insulin, or a combination of both. Insulin secretagogues, biguanides, insulin sensitizers, alpha-glucosidase inhibitors, incretin mimetics, amylin antagonists, and sodium-glucose co-transporter-2 (SGLT2) inhibitors are the main medications used to treat T2DM. Several of these medication's traditional dosage forms have some disadvantages, including frequent dosing, a brief half-life, and limited absorption. Hence, attempts have been made to develop new drug delivery systems for oral antidiabetics to ameliorate the difficulties associated with conventional dosage forms. In comparison to traditional treatments, this review examines the utilization of various innovative therapies (such as microparticles, nanoparticles, liposomes, niosomes, phytosomes, and transdermal drug delivery systems) to improve the distribution of various oral hypoglycemic medications. In this review, we have also discussed some new promising candidates that have been approved recently by the US Food and Drug Administration for the treatment of T2DM, like semaglutide, tirzepatide, and ertugliflozin. They are used as a single therapy and also as combination therapy with drugs like metformin and sitagliptin.
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Affiliation(s)
- Abhishek Kumar
- Noida Institute of Engineering and Technology (Pharmacy Institute), Greater Noida, UP 201306, India
| | - Rupa Mazumder
- Noida Institute of Engineering and Technology (Pharmacy Institute), Greater Noida, UP 201306, India
| | - Anjna Rani
- Noida Institute of Engineering and Technology (Pharmacy Institute), Greater Noida, UP 201306, India
| | - Pratibha Pandey
- Department of Biotechnology, Noida Institute of Engineering and Technology, Greater Noida, UP 201306, India
| | - Navneet Khurana
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, India
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Abd-Elal RM, Essawy AM, Salem MA, Elsayed M, Khalil MG, Abdelhakeem E, Ali NA, Tawfik MA. Formulation, optimization, in-vivo biodistribution studies and histopathological safety assessment of duloxetine HCl-loaded ultra-elastic nanovesicles for antidepressant effect after intranasal and transdermal delivery. Int J Pharm X 2023; 6:100194. [PMID: 37434966 PMCID: PMC10331411 DOI: 10.1016/j.ijpx.2023.100194] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/10/2023] [Accepted: 06/22/2023] [Indexed: 07/13/2023] Open
Abstract
Duloxetine hydrochloride (DUL) is a BCS class-II antidepressant drug, acting via serotonin and norepinephrine reuptake inhibition. Despite high oral absorption, DUL suffers limited bioavailability due to extensive gastric and first-pass metabolism. To improve DUL's bioavailability; DUL-loaded elastosomes were developed, via full factorial design, utilizing various span®60: cholesterol ratios, edge activator types and amounts. Entrapment efficiency (E.E.%), particle size (PS), zeta potential (ZP) and in-vitro released percentages after 0.5 h (Q0.5h) and 8 h (Q8h) were evaluated. Optimum elastosomes (DUL-E1) were assessed for morphology, deformability index, drug crystallinity and stability. DUL pharmacokinetics were evaluated in rats following intranasal and transdermal application of DUL-E1 elastosomal gel. DUL-E1 elastosomes [comprising span®60 and cholesterol (1:1) and brij S2 (edge activator; 5 mg)] were optimum with high E.E.% (81.5 ± 3.2%), small PS (432 ± 13.2 nm), ZP (-30.8 ± 3.3 mV), acceptable Q0.5h (15.6 ± 0.9%), and high Q8h (79.3 ± 3.8%). Intranasal and transdermal DUL-E1 elastosomes revealed significantly higher Cmax (251 ± 18.6 and 248 ± 15.9 ng/mL) at Tmax (2 and 4 h) and improved relative bioavailability (≈ 2.8 and 3.1 folds) respectively, in comparison to oral DUL aqueous solution. In-vivo histopathological studies were conducted to ensure the safety of DUL-E1. Elastosomes are promising novel nano-carriers, capable of enhancing the bioavailability of DUL via various routes of administration.
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Affiliation(s)
- Radwa M.A. Abd-Elal
- Pharmaceutics and Drug Manufacturing Department, Faculty of pharmacy, Modern University for Technology and Information (MTI), Cairo 11571, Egypt
| | - Aya M. Essawy
- Department of Clinical Pharmacy, Faculty of pharmacy, Modern University for Technology and Information (MTI), Cairo 11571, Egypt
| | - Maha A. Salem
- Department of Pharmacology and Toxicology, Faculty of pharmacy, Modern University for Technology and Information (MTI), Cairo 11571, Egypt
| | - Mahitab Elsayed
- Department of Clinical Pharmacy, Faculty of pharmacy, Modern University for Technology and Information (MTI), Cairo 11571, Egypt
| | - Mona G. Khalil
- Department of Pharmacology and Toxicology, Faculty of pharmacy, Modern University for Technology and Information (MTI), Cairo 11571, Egypt
| | - Eman Abdelhakeem
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Nouran A. Ali
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Mai Ahmed Tawfik
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
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Shareef Khan M, Rao Ravi P, Shrikant Dhavan D. Design, optimization and pharmacokinetic evaluation of PLGA phosphatidylcholine hybrid nanoparticles of triamcinolone acetonide loaded in situ gel for topical ocular delivery. Int J Pharm 2023; 647:123530. [PMID: 37858638 DOI: 10.1016/j.ijpharm.2023.123530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 10/14/2023] [Accepted: 10/16/2023] [Indexed: 10/21/2023]
Abstract
Posterior uveitis (PU), which often has an autoimmune origin, can be treated effectively with synthetic glucocorticoid triamcinolone acetonide (TAA). Due to the limitations of topical TAA administration reaching the posterior segment of the eye, the drug is injected directly into the eye through an intravitreal injection. In this study, we prepared TAA loaded poly(lactic-co-glycolic acid) phosphatidylcholine hybrid nanoparticles (TAA-PLHNPs) using the principles of design of experiments (DoE) for topical ocular administration. The mean particle size (nm) and drug loading efficiency (LE%) for the optimized formulations were 163 ± 2.8 nm and 39 ± 1.9%, respectively. The TAA-PLHNPs were then loaded into the dual responsive in situ gel that we reported in our previous work. In vitro assessments were done to show that the formulations are safe for ocular administration. Finally, in vivo ocular pharmacokinetic studies were performed to compare pharmacokinetic parameters of TAA-PLHNPs and TAA-PLHNPs loaded in situ gel with each other and with the previously reported conventional formulation of TAA (aqueous suspension of TAA with 20% hydroxypropyl β-cyclodextrin (TAA-HP-β-CD-Susp)). TAA-PLHNPs loaded dual responsive in situ gel (TAA-PLHNP-ISG) achieved higher concentrations of TAA in the vitreous humor (Cmax of 946.53 ng/mL) and sustained (MRT0-∞ of 16.26 h) the drug concentrations for longer period of time compared to aqueous suspension of TAA-PLHNPs (TAA-PLHNP-Susp) and TAA-HP-β-CD-Susp.
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Affiliation(s)
- Mohammed Shareef Khan
- Department of Pharmacy, BITS-Pilani, Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Medchal (District), Hyderabad 500078, India
| | - Punna Rao Ravi
- Department of Pharmacy, BITS-Pilani, Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Medchal (District), Hyderabad 500078, India.
| | - Divya Shrikant Dhavan
- Department of Pharmacy, BITS-Pilani, Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Medchal (District), Hyderabad 500078, India
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Khan MS, Ravi PR, Dhavan DS. Design, optimization, in vitro and in vivo evaluation of triamcinolone acetonide nanocrystals loaded in situ gel for topical ocular delivery. Colloids Surf B Biointerfaces 2023; 231:113539. [PMID: 37742362 DOI: 10.1016/j.colsurfb.2023.113539] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/28/2023] [Accepted: 09/08/2023] [Indexed: 09/26/2023]
Abstract
Triamcinolone acetonide (TAA), a long-acting synthetic glucocorticoid, is commonly used for the management of posterior uveitis (PU) because of its anti-inflammatory and immunosuppressive characteristics. The commercially available formulation is in the suspension form advised for intravitreal injection, which has a number of serious problems. In the present research work, we prepared TAA nanocrystals (TAA-NCs) using the principles of design of experiments (DoE). The optimized TAA-NCs had a particle size of 243.0 ± 6.5 nm and a yield (%) of 89.4 ± 4.3%. The optimized TAA-NCs were suspended in a dual-responsive in situ gelling system, which has been previously reported by our team. The TAA-NCs loaded in situ gel (TAA-NC-ISG) formulations were evaluated for rheology, stability, in vitro and in vivo characteristics. The ocular pharmacokinetic investigations revealed that TAA-NCs loaded in situ gel achieved higher concentrations (Cmax of TAA-NC-ISG = 854.9 ng/mL) of the drug in vitreous humor and sustained (MRT0-∞ of TAA-NC-ISG = 11.2 h) the drug concentrations for longer duration compared to aqueous suspension of TAA-NCs (TAA-NC-Susp) and aqueous suspension of TAA with 20% hydroxypropyl β-cyclodextrin(TAA-HP-β-CD-Susp) reported in our previous work. This higher exposure of TAA by TAA-NC-ISG is due to the combined effect of the nanometric size of the TAA nanocrystals and the in situ gelling properties of the formulation.
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Affiliation(s)
- Mohammed Shareef Khan
- Department of Pharmacy, BITS-Pilani, Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Medchal (District), Hyderabad 500078, India
| | - Punna Rao Ravi
- Department of Pharmacy, BITS-Pilani, Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Medchal (District), Hyderabad 500078, India.
| | - Divya Shrikant Dhavan
- Department of Pharmacy, BITS-Pilani, Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Medchal (District), Hyderabad 500078, India
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Khan MS, Ravi PR, Mir SI, Rawat PS. Optimization and in vivo evaluation of triamcinolone acetonide loaded in situ gel prepared using reacted tamarind seed xyloglucan and kappa-carrageenan for ocular delivery. Int J Biol Macromol 2023; 233:123533. [PMID: 36740111 DOI: 10.1016/j.ijbiomac.2023.123533] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 01/10/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023]
Abstract
In the current work, triamcinolone acetonide (TAA) loaded dual responsive in situ gelling system was designed and optimized using reacted tamarind seed xyloglucan (RXG) (thermoresponsive) and kappa-Carrageenan (κ-CRG) (ion-sensitive) polymers. Tamarind seed xyloglucan (TSX) was subjected to purification followed by enzymatic treatment to produce RXG with ~40 % reduction in galactose content compared to TSX. RXG was characterized using size exclusion chromatography, Fourier transform infrared and proton nuclear magnetic resonance spectroscopy to confirm the ~40 % reduction in galactoside content compared to TSX. The proportions of RXG and κ-CRG in the in situ gels (TAA loaded RXG-κ-CRG) were optimized based on their rheological properties. The optimized in situ gel exhibited good flow properties at 25 °C, but transformed rapidly into a stronger gel in the presence of STF at 35 °C. The optimized formulation had strong mucoadhesion with good spreadability on the surface of excised goat cornea. The drug release followed zero-order kinetics from the optimized in situ gel. Ex vivo ocular toxicity studies indicate that the optimized formulation was well tolerated. The ocular pharmacokinetic studies in rabbits showed significantly higher and sustained vitreous humor exposure of TAA for optimized in situ gel compared to hydroxypropyl-β-cyclodextrin based aqueous suspension of TAA.
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Affiliation(s)
- Mohammed Shareef Khan
- Department of Pharmacy, BITS-Pilani, Hyderabad Campus, Jawahar Nagar, Shameerpet Mandal, RR District, Hyderabad 500078, India
| | - Punna Rao Ravi
- Department of Pharmacy, BITS-Pilani, Hyderabad Campus, Jawahar Nagar, Shameerpet Mandal, RR District, Hyderabad 500078, India.
| | - Shahid Iqbal Mir
- Department of Pharmacy, BITS-Pilani, Hyderabad Campus, Jawahar Nagar, Shameerpet Mandal, RR District, Hyderabad 500078, India
| | - Pradeep Singh Rawat
- Department of Pharmacy, BITS-Pilani, Hyderabad Campus, Jawahar Nagar, Shameerpet Mandal, RR District, Hyderabad 500078, India
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Evaluation of Ulcer Protective Activity of Morus alba L. Extract-Loaded Chitosan Microspheres in Ethanol-Induced Ulcer in Rat Model. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:4907585. [PMID: 36212972 PMCID: PMC9546716 DOI: 10.1155/2022/4907585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 08/22/2022] [Indexed: 11/12/2022]
Abstract
Due to an unhealthy lifestyle, gastric ulcers have become a very common disease these days. Moreover, the side effects linked with the prolonged use of conventional treatments have shifted the paradigm towards herbal therapies. The leaves of Morus alba L. (Family-Moraceae) have been traditionally used for a large number of metabolic diseases. In the present research, we focused on the development of chitosan microspheres using extracts of leaves of Morus alba L. and their evaluation for gastroprotective efficacy against ethanol-induced ulcers in experimental rats. The process of development of M. alba extract microsphere (MEM) is also optimized using the Box-Behnken design. The formulation was prepared at optimized conditions (chitosan concentration (1.66% w/w), volume of glutaraldehyde (4.69 mL), and stirrer rotation per minute, RPM, 854.8), and the percentage yield (Y 1) of the resulted microspheres is ∼95% with an encapsulation efficiency (EE) of (Y 2(rutin)) ∼86%, Y 2(quercetin)) ∼85%, and particle size (Y 3) of ∼40 µm. The MEM prepared at optimized conditions can also be characterized for various parameters to ensure the uniformity of parameters. Also, the drug release studies indicated that the percentage release of rutin and quercetin from MEM was enhanced as compared to M. alba extract (ME) alone. Furthermore, in vivo analysis of the antiulcer potential of pretreatment with ME and MEM (500 mg/kg p.o.) in rats indicated that mucosal lesions, gastric juice volume, and total acidity were significantly altered as compared to ethanol-treated animals. Histopathology of tissue sections also confirmed the protection of gastric mucosa on pretreatment with MEM at 500 mg/kg p.o. On the basis of these findings, we can conclude that prepared microspheres can be used to develop a sustained release formulation of extract for the management of gastric ulcers. However, additional research is needed to establish the specific mechanisms of M. alba's antiulcer efficacy.
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Alhakamy NA, Naveen NR, Gorityala S, Kurakula M, Hosny KM, Safhi AY, Bukhary DM, Bukhary HA, Sabei FY, Mushtaq RY, Murshid SS. Development of Novel S-Protective Thiolated-Based Mucoadhesive Tablets for Repaglinide: Pharmacokinetic Study. Polymers (Basel) 2022; 14:polym14173529. [PMID: 36080604 PMCID: PMC9460926 DOI: 10.3390/polym14173529] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 08/23/2022] [Accepted: 08/25/2022] [Indexed: 11/16/2022] Open
Abstract
Mucoadhesive polymers have an essential role in drug localization and target-specific actions in oral delivery systems. The current work aims to develop and characterize a new mucoadhesive polysaccharide polymer (thiolated xanthan gum-TXG and S-Protected thiolated xanthan gum-STX) that was further utilized for the preparation of repaglinide mucoadhesive tablets. The thiolation of xanthan gum was carried out by ester formation through the reaction of the hydroxyl group of xanthan gum and the carboxyl group of thioglycolic acid. Synthesis of TXG was optimized using central composite design, and TXG prepared using 5.303 moles/L of TGA and 6.075 g/L of xanthan gum can accomplish the prerequisites of the optimized formulation. Consequently, TXG was further combined with aromatic 2-mercapto-nicotinic acid to synthesize STX. TXG and STX were further studied for Fourier-transform infrared spectroscopy, rheological investigations, and Ellman’s assay (to quantify the number of thiol/disulfide groups). A substantial rise in the viscosity of STX might be due to increased interactions of macromolecules liable for improving the mucosal adhesion strength of thiolated gum. STX was proven safe with the support of cytotoxic study data. Mucoadhesive formulations of repaglinide-containing STX showed the highest ex vivo mucoadhesion strength (12.78 g-RSX-1 and 17.57 g- RSX-2) and residence time (>16 h). The improved cross-linkage and cohesive nature of the matrix in the thiolated and S-protected thiolated formulations was responsible for the controlled release of repaglinide over 16 h. The pharmacokinetic study revealed the greater AUC (area under the curve) and long half-life with the RSX-2 formulation, confirming that formulations based on S-protected thiomers can be favorable drug systems for enhancing the bioavailability of low-solubility drugs.
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Affiliation(s)
- Nabil A. Alhakamy
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Center of Excellence for Drug Research and Pharmaceutical Industries, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Nimbagal Raghavendra Naveen
- Department of Pharmaceutics, Sri Adichunchanagiri College of Pharmacy, Adichunchanagiri University, B.G. Nagar 571448, India
| | - Shashank Gorityala
- Bioanalytical Chemistry, Labcorp Drug Development, Madison, WI 53704, USA
| | - Mallesh Kurakula
- Product Development Department, CURE Pharmaceutical, Oxnard, CA 93033, USA
- Correspondence: (M.K.); (K.M.H.)
| | - Khaled M. Hosny
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Correspondence: (M.K.); (K.M.H.)
| | - Awaji Y. Safhi
- Department of Pharmaceutics, College of Pharmacy, Jazan University, Jazan 45142, Saudi Arabia
| | - Deena M. Bukhary
- Department of Pharmaceutics, College of Pharmacy, Umm Al-Qura University, Mecca 24382, Saudi Arabia
| | - Haitham A. Bukhary
- Department of Pharmaceutics, College of Pharmacy, Umm Al-Qura University, Mecca 24382, Saudi Arabia
| | - Fahad Y. Sabei
- Department of Pharmaceutics, College of Pharmacy, Jazan University, Jazan 45142, Saudi Arabia
| | - Rayan Y. Mushtaq
- Department of Pharmaceutics, College of Clinical Pharmacy, Immam Abdulrahman Bin Faisal University, Dammam 34212, Saudi Arabia
| | - Samar S. Murshid
- Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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Meng S, Wang S, Piao MG. Prescription optimization of gastroretentive furosemide hollow-bioadhesive microspheres via Box-Behnken design: In vitro characterization and in vivo evaluation. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Sameeh MY, Khowdiary MM, Nassar HS, Abdelall MM, Amer HH, Hamed A, Elhenawy AA. Thiazolidinedione Derivatives: In Silico, In Vitro, In Vivo, Antioxidant and Anti-Diabetic Evaluation. Molecules 2022; 27:molecules27030830. [PMID: 35164095 PMCID: PMC8838189 DOI: 10.3390/molecules27030830] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 01/21/2022] [Accepted: 01/23/2022] [Indexed: 02/04/2023] Open
Abstract
This work aimed to synthesize a new antihyperglycemic thiazolidinedione based on the spectral data. The DFT\B3LYP\6-311G** level of theory was used to investigate the frontier molecular orbitals (FMOs), chemical reactivity and map the molecular electrostatic potentials (MEPs) to explain how the synthesized compounds interacted with the receptor. The molecular docking simulations into the active sites of PPAR-γ and α-amylase were performed. The in vitro potency of these compounds via α-amylase and radical scavenging were evaluated. The data revealed that compounds (4–6) have higher potency than the reference drugs. The anti-diabetic and anti-hyperlipidemic activities for thiazolidine-2,4-dione have been investigated in vivo using the alloxan-induced diabetic rat model along with the 30 days of treatment protocol. The investigated compounds didn’t show obvious reduction of blood glucose during pre-treatments compared to diabetic control, while after 30 days of treatments, the blood glucose level was lower than that of the diabetic control. Compounds (4–7) were able to regulate hyperlipidemia levels (cholesterol, triglyceride, high-density lipoproteins and low- and very-low-density lipoproteins) to nearly normal value at the 30th day.
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Affiliation(s)
- Manal Y. Sameeh
- Chemistry Department, Faculty of Applied Science, Umm El Qura Branch, Makkah 24211, Saudi Arabia; (M.Y.S.); (M.M.K.)
| | - Manal M. Khowdiary
- Chemistry Department, Faculty of Applied Science, Umm El Qura Branch, Makkah 24211, Saudi Arabia; (M.Y.S.); (M.M.K.)
- Applied Surfactant Laboratory, Egyptian Petroleum Research Institute, Nasr City, Cairo 11727, Egypt
| | - Hisham S. Nassar
- Department of Chemistry, Faculty of Science and Arts in Al-Mukhwah, Al-Baha University, Al Bahah 65311, Saudi Arabia;
- Chemistry Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884, Egypt; (M.M.A.); (A.H.)
| | - Mahmoud M. Abdelall
- Chemistry Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884, Egypt; (M.M.A.); (A.H.)
| | - Hamada H. Amer
- Department of Animal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, University of Sadat City, Sadat City 32958, Egypt; or
- Department of Chemistry, Turabah University College, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Abdelaaty Hamed
- Chemistry Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884, Egypt; (M.M.A.); (A.H.)
| | - Ahmed A. Elhenawy
- Department of Chemistry, Faculty of Science and Arts in Al-Mukhwah, Al-Baha University, Al Bahah 65311, Saudi Arabia;
- Chemistry Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884, Egypt; (M.M.A.); (A.H.)
- Correspondence: or ; Tel.: +966-59-9044526
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Sameeh MY, Khowdiary MM, Nassar HS, Abdelall MM, Alderhami SA, Elhenawy AA. Discovery Potent of Thiazolidinedione Derivatives as Antioxidant, α-Amylase Inhibitor, and Antidiabetic Agent. Biomedicines 2021; 10:24. [PMID: 35052707 PMCID: PMC8773338 DOI: 10.3390/biomedicines10010024] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/19/2021] [Accepted: 12/21/2021] [Indexed: 12/28/2022] Open
Abstract
This work aimed to synthesize safe antihyperglycemic derivatives bearing thiazolidinedione fragment based on spectral data. The DFT theory discussed the frontier molecular orbitals (FMOs), chemical reactivity of compounds, and molecular electrostatic potential (MEP) to explain interaction between thiazolidinediones and the biological receptor. α-amylase is known as the initiator-hydrolysis of the of polysaccharides; therefore, developing α-amylase inhibitors can open the way for a potential diabetes mellitus drug. The molecular docking simulation was performed into the active site of PPAR-γ and α-amylase. We evaluated in vitro α-amylase's potency and radical scavenging ability. The compound 6 has the highest potency against α-amylase and radical scavenging compared to the reference drug and other members. They have been applied against anti-diabetic and anti-hyperlipidemic activity (in vivo) based on an alloxan-induced diabetic rat model during a 30-day treatment protocol. The most potent anti hyperglycemic members are 6 and 11 with reduction percentage of blood glucose level by 69.55% and 66.95%, respectively; compared with the normal control. Other members exhibited moderate to low anti-diabetic potency. All compounds showed a normal value against the tested biochemical parameters (CH, LDL, and HDL). The ADMET profile showed good oral bioavailability without any observed carcinogenesis effect.
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Affiliation(s)
- Manal Y. Sameeh
- Chemistry Department, Faculty of Applied Science, Alleeth University Collage, Umm Al-Qura University, Makkah 24211, Saudi Arabia;
| | - Manal M. Khowdiary
- Chemistry Department, Faculty of Applied Science, Alleeth University Collage, Umm Al-Qura University, Makkah 24211, Saudi Arabia;
- Applied Surfactant Laboratory, Egyptian Petroleum Research Institute, Nasr City 11727, Cairo, Egypt
| | - Hisham S. Nassar
- Department of Chemistry, Faculty of Science and Arts in Al-Mukhwah, Al-Baha University, Al-Mukhwah 65311, Saudi Arabia; (H.S.N.); (S.A.A.)
- Chemistry Department, Faculty of Science, Al-Azhar University, Nasr City 11884, Cairo, Egypt;
| | - Mahmoud M. Abdelall
- Chemistry Department, Faculty of Science, Al-Azhar University, Nasr City 11884, Cairo, Egypt;
| | - Suliman A. Alderhami
- Department of Chemistry, Faculty of Science and Arts in Al-Mukhwah, Al-Baha University, Al-Mukhwah 65311, Saudi Arabia; (H.S.N.); (S.A.A.)
| | - Ahmed A. Elhenawy
- Department of Chemistry, Faculty of Science and Arts in Al-Mukhwah, Al-Baha University, Al-Mukhwah 65311, Saudi Arabia; (H.S.N.); (S.A.A.)
- Chemistry Department, Faculty of Science, Al-Azhar University, Nasr City 11884, Cairo, Egypt;
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Shahzad Y, Ibrar N, Hussain T, Yousaf AM, Khan IU, Rizvi SAA. Relevancy of Nizatidine’s Release from Floating Tablets with Viscosity of Various Cellulose Ethers. SCI 2021; 3:22. [DOI: 10.3390/sci3020022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2023] Open
Abstract
Nizatidine is a gastroprotective drug with a short biological half-life and narrow absorption window. This study aimed at developing floating tablets of nizatidine using various HPMC viscosity grades, namely K4M, E4M, K15 and K200M. Directly compressed tablets revealed an excellent uniformity in hardness, thickness and weight and nizatidine was evenly distributed within the matrix floating tablets. Buoyancy study revealed floating lag time as low as 18–38 s, and tablets remain buoyant for upto 24 h. However, the later depended upon viscosity grade of HPMC and that the higher the viscosity, the less was the total floating time. In vitro dissolution indicated viscosity dependent nizatidine release from the floating tablets. HPMC K4M and E4M based floating tablets released almost 100% drug in 12 h, whilst higher viscosity polymers such as K15 and K200M only released 81.88% and 75.81% drug, respectively. The drug release followed non-Fickian diffusion from tablets formulated with K4M, K15 and K200M, whilst super case II transport was observed with E4M based tablets. More interestingly, K4M and E4M polymers have similar viscosity yet exhibited different drug release mechanism. This was attributed to the difference in degree of substitution of methoxyl- and hydroxypropoxyl- groups on polymer backbone.
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Navamanisubramanian R, Nerella R, Seetharaman S. Pharmacokinetic Investigation to Study the In Vivo Bioavailability of Thiolated Chitosan Based Repaglinide Buccal Tablets. PHARMACEUTICAL SCIENCES 2020. [DOI: 10.34172/ps.2020.62] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Background: Repaglinide (REP) is an antihyperglycemic drug having low bioavailability due to its extensive first-pass metabolism. The present study aimed to develop and pharmacokinetic investigte the thiolated chitosan (TC) based buccal tablets of REP for improved bioavailability. Methods: TC was prepared by conjugation of L-cysteine with chitosan. The amount of free thiol groups present in TC was determined by UV-spectrophotometry using Ellman’s reagent. TC based REP buccal tablets were prepared by two layers co-compression method and characterized for in vitro and ex vivo parameters. The in vivo performance of prepared REP buccal tablets was assessed by the pharmacokinetic study in New Zealand white rabbits. Results: The prepared TC resulted in 87%w/w yield with 52.3±3.2 μM free thiol functional groups per 10 mg of TC. The prepared formulations have good flow nature and compressibility, acceptable thickness (2.02 to 2.1 mm), weight (60.11 to 61.06 mg), surface pH (6.59 to 6.81) and drug content (98.92 to 101.08 %w/w). The presence of TC significantly improved the mucoadhesion strength, sustained the in vitro release and enhanced the ex vivo permeation of REP buccal tablets. The shelf life of REP buccal tablets was found to be 15.07 months in accelerated storage conditions. The prepared REP buccal tablets (V5) have area under the curve (712.22±15.91 ng/mL/h) and mean residence time (4.66±0.25 h) was 1.89 and 1.83 folds higher than oral bolus respectively. Conclusion: TC based REP buccal tablets are capable of controlled transbuccal release of REP for a prolonged time and have better bioavailability than oral bolus.
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Affiliation(s)
- Raja Navamanisubramanian
- Balaji Institute of Pharmaceutical Sceinces, Laknepally (V), Narsampet (M), Warangal Rural, Telangana, India
| | - Raghunandan Nerella
- Balaji Institute of Pharmaceutical Sceinces, Laknepally (V), Narsampet (M), Warangal Rural, Telangana, India
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14
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Predicting pharmacokinetic parameters by convolution: An in vitro approach for investigating bifunctional capsulated dosage form. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.102078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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15
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Mattiazzi J, Sari MHM, Araujo PCO, Englert AV, Nadal JM, Farago PV, Nogueira CW, Cruz L. Ethylcellulose microparticles enhance 3,3'-diindolylmethane anti-hypernociceptive action in an animal model of acute inflammatory pain. J Microencapsul 2020; 37:528-541. [PMID: 32852233 DOI: 10.1080/02652048.2020.1815882] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AIM The present work aimed at the DIM-loaded microparticles development and anti-hypernociceptive action evaluation. METHOD The formulations were prepared by O/W solvent emulsion-evaporation method and characterised by particle diameter, content and DIM encapsulation efficiency, drug release profile, thermal behaviour and physicochemical state. The anti-hypernociceptive action was evaluated in the animal model of acute inflammatory pain. RESULT The MPs had a mean diameter in the micrometric range (368 ± 31 μm), narrow size distribution, DIM content of 150 mg/g, encapsulation efficiency around 84% and prolonged compound release. Evaluations of the association form of DIM to MPs demonstrated the feasibility of the systems to incorporate DIM and increases its thermal stability. An improvement in the anti-hypernociceptive action of DIM was observed by its microencapsuation, because it was increased and prolonged. CONCLUSION Therefore, the MPs developed represent a promising formulation for oral administration of the DIM in the treatment of inflammatory pain.
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Affiliation(s)
- Juliane Mattiazzi
- Programa de Pós-graduação em Ciências Farmacêuticas, Laboratório de Tecnologia Farmacêutica, Departamento de Farmácia Industrial, Centro de Ciências da Saúde, Federal University of Santa Maria, Santa Maria, Brazil
| | - Marcel Henrique Marcondes Sari
- Programa de Pós-graduação em Ciências Farmacêuticas, Laboratório de Tecnologia Farmacêutica, Departamento de Farmácia Industrial, Centro de Ciências da Saúde, Federal University of Santa Maria, Santa Maria, Brazil
| | - Paulo Cesar Oliveira Araujo
- Programa de Pós-graduação em Bioquímica Toxicológica, Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Departamento de Biologia Molecular, Centro de Ciências Naturais e Exatas, Federal University of Santa Maria, Santa Maria, Brazil
| | - Andrei Vinícius Englert
- Programa de Pós-graduação em Ciências Farmacêuticas, Laboratório de Tecnologia Farmacêutica, Departamento de Farmácia Industrial, Centro de Ciências da Saúde, Federal University of Santa Maria, Santa Maria, Brazil
| | - Jéssica Mendes Nadal
- Programa de Pós-graduação em Ciências Farmacêuticas, State University of Ponta Grossa, Brazil
| | - Paulo Vítor Farago
- Programa de Pós-graduação em Ciências Farmacêuticas, State University of Ponta Grossa, Brazil
| | - Cristina Wayne Nogueira
- Programa de Pós-graduação em Bioquímica Toxicológica, Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Departamento de Biologia Molecular, Centro de Ciências Naturais e Exatas, Federal University of Santa Maria, Santa Maria, Brazil
| | - Letícia Cruz
- Programa de Pós-graduação em Ciências Farmacêuticas, Laboratório de Tecnologia Farmacêutica, Departamento de Farmácia Industrial, Centro de Ciências da Saúde, Federal University of Santa Maria, Santa Maria, Brazil
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Ramadan AA, Elbakry AM, Sarhan HA, Ali SH. Silymarin loaded floating polymer(s) microspheres: characterization, in-vitro/in-vivo evaluation. Pharm Dev Technol 2020; 25:1081-1089. [DOI: 10.1080/10837450.2020.1795192] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Afaf A. Ramadan
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Egyptian Russian University, Cairo, Egypt
| | - Asmaa M. Elbakry
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Heliopolis University, Cairo, Egypt
| | - Hatem A. Sarhan
- Department of Pharmaceutics, Faculty of Pharmacy, Minia University, Minya, Egypt
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Abbas AK, Alhamdany AT. Floating Microspheres of Enalapril Maleate as a Developed Controlled Release Dosage Form: Investigation of the Effect of an Ionotropic Gelation Technique. Turk J Pharm Sci 2020; 17:159-171. [PMID: 32454775 PMCID: PMC7227913 DOI: 10.4274/tjps.galenos.2018.15046] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 12/20/2018] [Indexed: 02/07/2023]
Abstract
OBJECTIVES The purpose of this study was to provide a control drug delivery system through a newly approved work to enhance the absorption and bioavailability of enalapril maleate loaded floating microspheres by ionotropic gelation technique using a hydrophilic carrier. MATERIALS AND METHODS Eleven developed formulations of floating microspheres were prepared by ionotropic gelation using different concentrations of sodium alginate, iota-carrageenan, sodium bicarbonate, calcium chloride, and the drug. These microspheres were characterized using a diversity of parameters like micrometric properties, percentage yield, entrapment efficiency, in vitro buoyancy, in vitro drug release, and kinetics of drug release. The optimum formula was evaluated and identified for drug-excipients compatibility using fourier transform-infrared spectroscopy (FT-IR), surface morphology, powder X-ray diffraction (XRD), and differential scanning calorimetry (DSC). RESULTS From the results, F4 was selected as the optimum formula since it provides a faster and premium release of drug from the matrix (91.4%). Kinetics of drug release was found to depend on both diffusion and erosion mechanisms, as the correlation coefficient (R2) was best fitted with Korsmeyer's model and the release exponent (n) was shown to be between 0.43 and 0.84. Scanning electron microscopy images demonstrated spherical, discrete, and freely flowing microspheres with a particle size of 199.4±0.04 μm. Optimum buoyancy properties, percentage yield, and drug entrapment efficiency were achieved. FT-IR showed no interaction between enalapril and the polymers. DSC and XRD showed the miscibility of the drug with the polymers while maintaining the stable crystalline properties of enalapril loaded in the prepared microspheres. CONCLUSION The developed floating microspheres of enalapril maleate can be considered a promising controlled drug delivery system, thereby improving patient compliance.
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Affiliation(s)
- Ali Khidher Abbas
- Mustansiriyah University, College of Pharmacy, Department of Pharmaceutics, Baghdad, Iraq
| | - Anas Tarik Alhamdany
- Mustansiriyah University, College of Pharmacy, Department of Pharmaceutics, Baghdad, Iraq
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Okra-Thioglycolic Acid Conjugate—Synthesis, Characterization, and Evaluation as a Mucoadhesive Polymer. Processes (Basel) 2020. [DOI: 10.3390/pr8030316] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The success of mucoadhesive drug delivery systems relies on the type of polymer used, which becomes adhesive naturally upon hydration. Intended polymers should be able to maintain prolonged contact with biological membranes, and to protect or cater the drug to a prolonged period. Most of the hydro polymers form weak non-covalent bonds, that hinder localization of dosage forms at specific sites resulting in therapeutic inefficiency. This can be overcome by the thiol functionalization of natural polymers. In the present study, natural okra gum (OG) was extracted, followed by thiolation (TOG) and evaluated for mucoadhesion property and its role in enhancing the efficacy of repaglinide as a model drug (short-acting Type II antidiabetic drug). The thiol functionalization of OG (TOG) was confirmed by a Fourier-transform infrared spectroscopy (FTIR) study that showed a polyhedral to a spherical shape that had a rougher surface. Differential scanning calorimetry (DSC) and X-Ray Diffraction (XRD) studies of TOG indicated a decline in endothermic transition temperature and high crystallinity, respectively, in comparison to OG. CSFR (Crushing Strength: Friability Ratio), weight and thickness variations of repaglinidetablets formulated using TOG were >80% and <2.5% respectively. The highest swelling index (107.89 ± 1.99%) and strong mucoadhesion due to high disulfide bonds were observed for repaglinide TOG tablets in comparison to RG OG tablets. In-vitro release studies indicated a controlled drug release from thiolated formulations proportional to the concentration of thiomers that have a good correlation with in-vivo studies. Pharmacokinetic studies indicated higher AUC (area under the curve), longer t1/2 with thiomers. and Level A IVIV (in vitro in vivo) correlation was established from the bioavailability and dissolution data. Consequently, all the obtained results suggest that thiomers based formulations can be promising drug delivery systems, even in targeting onerous mucosal surfaces like nasal, ocular or vaginal.
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Assas N, Elbahri Z, Baitiche M, Djerboua F. Effects of some process parameters on the niflumic acid controlled release polymeric microspheres: Optimization using designs of experiments. ASIA-PAC J CHEM ENG 2019. [DOI: 10.1002/apj.2283] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Nedjma Assas
- Laboratory of Multiphasic and Polymeric Materials, Faculty of TechnologyFerhat Abbas University of Sétif Sétif Algeria
| | - Zineb Elbahri
- Laboratory of Materials and Catalysis, Faculty of Exact SciencesDjillali Liabes University of Sidi Bel Abbes Sidi Bel Abbes Algeria
| | - Milad Baitiche
- Laboratory of Multiphasic and Polymeric Materials, Faculty of TechnologyFerhat Abbas University of Sétif Sétif Algeria
| | - Ferhat Djerboua
- Laboratory of Multiphasic and Polymeric Materials, Faculty of TechnologyFerhat Abbas University of Sétif Sétif Algeria
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Naveen NR, Gopinath C, Rao DS. Design expert supported mathematical optimization of repaglinide gastroretentive floating tablets: In vitro and in vivo evaluation. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2017. [DOI: 10.1016/j.fjps.2017.05.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Formulation of clarithromycin floating microspheres for eradication of Helicobacter pylori. J Drug Deliv Sci Technol 2017. [DOI: 10.1016/j.jddst.2017.07.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Awasthi R, Kulkarni GT, Ramana MV, de Jesus Andreoli Pinto T, Kikuchi IS, Molim Ghisleni DD, de Souza Braga M, De Bank P, Dua K. Dual crosslinked pectin-alginate network as sustained release hydrophilic matrix for repaglinide. Int J Biol Macromol 2017; 97:721-732. [PMID: 28115226 DOI: 10.1016/j.ijbiomac.2017.01.050] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Revised: 12/23/2016] [Accepted: 01/11/2017] [Indexed: 11/29/2022]
Abstract
Repaglinide, an oral antidiabetic agent, has a rapid onset of action and short half-life of approximately 1h. Developing a controlled and prolonged release delivery system is required to maintain its therapeutic plasma concentration and to eliminate its adverse effects particularly hypoglycemia. The present study aimed to develop controlled release repaglinide loaded beads using sodium alginate and pectin with dual cross-linking for effective control of drug release. The prepared beads were characterized for size, percentage drug entrapment efficiency, in vitro drug release and the morphological examination using scanning electron microscope. For the comparative study, the release profile of a marketed conventional tablet of repaglinide (Prandin® tablets 2mg, Novo Nordisk) was determined by the same procedure as followed for beads. The particle size of beads was in the range of 698±2.34-769±1.43μm. The drug entrapment efficiency varied between 55.24±4.61 to 82.29±3.42%. The FTIR results suggest that there was no interaction between repaglinide and excipients. The XRD and DSC results suggest partial molecular dispersion and amorphization of the drug throughout the system. These results suggest that repaglinide did not dissolve completely in the polymer composition and seems not to be involved in the cross-linking reaction. The percent drug release was decreased with higher polymer concentrations. In conclusion, the developed beads could enhance drug entrapment efficiency, prolong the drug release and enhance bioavailability for better control of diabetes.
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Affiliation(s)
- Rajendra Awasthi
- NKBR College of Pharmacy & Research Centre, Meerut - Hapur Road, Meerut, 245 206, Uttar Pradesh, India.
| | - Giriraj T Kulkarni
- Amity Institute of Pharmacy, Amity University, Sec 125, Noida, 201303, Uttar Pradesh, India
| | | | - Terezinha de Jesus Andreoli Pinto
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Rua Professor Lineu Prestes, 05508-000, Brazil
| | - Irene Satiko Kikuchi
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Rua Professor Lineu Prestes, 05508-000, Brazil
| | - Daniela Dal Molim Ghisleni
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Rua Professor Lineu Prestes, 05508-000, Brazil
| | - Marina de Souza Braga
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Rua Professor Lineu Prestes, 05508-000, Brazil
| | - Paul De Bank
- Department of Pharmacy and Pharmacology, The University of Bath, Claverton Down, Bath, BA2 7AY, United Kingdom
| | - Kamal Dua
- School of Pharmaceutical Sciences, Shoolini University, Solan, Himachal Pradesh, 173229, India; School of Pharmacy and Biomedical Sciences, The University of Newcastle, Newcastle, Callaghan, NSW, 2308, Australia
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Kassem AA, Abd El-Alim SH, Basha M, Salama A. Phospholipid complex enriched micelles: A novel drug delivery approach for promoting the antidiabetic effect of repaglinide. Eur J Pharm Sci 2016; 99:75-84. [PMID: 27998799 DOI: 10.1016/j.ejps.2016.12.005] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 11/24/2016] [Accepted: 12/05/2016] [Indexed: 12/23/2022]
Abstract
To enhance the oral antidiabetic effect of repaglinide (RG), a newly emerging approach, based on the combination of phospholipid complexation and micelle techniques, was employed. Repaglinide-phospholipid complex (RG-PLC) was prepared by the solvent-evaporation method then characterized using Differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FT-IR) and X-ray powder diffraction (XPRD). The results revealed obvious disappearance of the characteristic peaks of the prepared RG-PLCs confirming the formation of drug-phospholipid complex. RG-PLC enriched micelles (RG-PLC-Ms) were prepared by the solvent-evaporation technique employing poloxamer 188 as surfactant. The prepared RG-PLC-Ms showed high drug encapsulation efficiencies (93.81-99.38%), with nanometric particle diameters (500.61-665.32nm) of monodisperse distribution and high stability (Zeta potential < -29.8mV). The in vitro release of RG from RG-PLC-Ms was pH-dependant according to the release media. A higher release pattern was reported in pH=1.2 compared to a more retarded release in pH=6.8 owing to two different kinetics of drug release. Oral antidiabetic effect of two optimized RG-PLC-M formulations was evaluated in an alloxan-induced diabetic rat model for 7-day treatment protocol. The two investigated formulations depicted normal blood glucose, serum malondialdehyde and insulin levels as well as an improved lipid profile, at the end of daily oral treatment, in contrast to RG marketed tablets implying enhanced antidiabetic effect of the drug. Hence, phospholipid-complex enriched micelles approach holds a promising potential for promoting the antidiabetic effect of RG.
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Affiliation(s)
- Ahmed Alaa Kassem
- Pharmaceutical Technology Department, National Research Centre, Dokki, Cairo 12622, Egypt.
| | | | - Mona Basha
- Pharmaceutical Technology Department, National Research Centre, Dokki, Cairo 12622, Egypt
| | - Abeer Salama
- Pharmacology Department, National Research Centre, Dokki, Cairo 12622, Egypt
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Formulation development and evaluation of a novel bi-dependent clarithromycin gastroretentive drug delivery system using Box-Behnken design. J Drug Deliv Sci Technol 2016. [DOI: 10.1016/j.jddst.2016.06.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Patil H, Tiwari RV, Repka MA. Recent advancements in mucoadhesive floating drug delivery systems: A mini-review. J Drug Deliv Sci Technol 2016. [DOI: 10.1016/j.jddst.2015.12.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Phaechamud T, Darunkaisorn W. Drug release behavior of polymeric matrix filled in capsule. Saudi Pharm J 2015; 24:627-634. [PMID: 27829804 PMCID: PMC5094431 DOI: 10.1016/j.jsps.2015.04.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Accepted: 04/27/2015] [Indexed: 11/08/2022] Open
Abstract
A single unit sustainable drug release system was developed using hydroxypropyl methylcellulose (HPMC)-based matrices filled in capsule as the drug delivery device. Release behavior of propranolol HCl from these capsules was investigated and least square fitting was performed for the dissolution data with the different mathematical expressions. Effect of diluent, polymer, pH and hydrodynamic force on the drug release from the developed systems was investigated. The utilization of HPMC as a matrix former extended the drug release longer than 8 h. HPMC viscosity grades affected the drug release, that is, increasing the amount of fillers such as lactose and dibasic calcium phosphate enhanced the drug release rate of HPMC matrices. The hydrodynamic force, type and amount of incorporated polymer apparently influenced the drug release. The physiochemical properties of polymers and interaction between HPMC and other polymers were important factors for prolongation of the drug release. The release mechanism from HPMC-based matrices in capsules was the non-Fickian transport in which the sustainable drug release of HPMC capsules could be achieved by the addition of polymeric matrix.
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Affiliation(s)
- Thawatchai Phaechamud
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Silpakorn University, Nakorn Pathom 73000, Thailand
| | - Wanwilai Darunkaisorn
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Silpakorn University, Nakorn Pathom 73000, Thailand
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