1
|
Gözcü S, Polat HK, Gültekin Y, Ünal S, Karakuyu NF, Şafak EK, Doğan O, Pezik E, Haydar MK, Aytekin E, Kurt N, Laçin BB. Formulation of hesperidin-loaded in situ gel for ocular drug delivery: a comprehensive study. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:5846-5859. [PMID: 38385802 DOI: 10.1002/jsfa.13407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 02/13/2024] [Accepted: 02/19/2024] [Indexed: 02/23/2024]
Abstract
BACKGROUND Allergic conjunctivitis is one of the most common eye disorders. Different drugs are used for its treatment. Hesperidin is an active substance isolated from Citrus sinensis L. (Rutaceae) fruit peels, with known anti-inflammatory activity but low solubility. It was complexed with cyclodextrin and encapsulated in situ gel to extend its duration in the eye. RESULTS The optimized formulation comprised 1% hesperidin, 1.5% hydroxyethyl cellulose, and 16% poloxamer 407. The viscosity at 25 °C was 492 ± 82 cP, and at 35 °C it was 8875 ± 248 cP, the pH was 7.01 ± 0.03, gelation temperature was 34 ± 1.3 °C, and gelation time was 33 ± 1.2 s. There was a 66% in vitro release in the initial 2 h, with a burst effect. A lipoxygenase (LOX) inhibition test determined that hesperidin was active at high doses on leukotyrens seen in the body in allergic diseases. In cell-culture studies, the hesperidin cyclodextrin complex loaded in situ gel, BRN9-CD (poloxamer 16%, hydroxy ethyl cellulose (HEC) 1.5%), enhanced cell viability in comparison with the hesperidin solution. It was determined that BRN9-CD did not cause any irritation in the ocular tissues in the Draize test. CONCLUSION The findings of this study demonstrate the potential of the in situ gel formulation of hesperidin in terms of ease of application and residence time on the ocular surface. Due to its notable LOX inhibition activity and positive outcomes in the in vivo Draize test, it appears promising for incorporation into pharmaceutical formulations. © 2024 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
Collapse
Affiliation(s)
- Sefa Gözcü
- Department of Pharmacognosy Faculty of Pharmacy, Erzincan Binali Yıldırım University, Erzincan, Turkey
| | - Heybet Kerem Polat
- Republic of Turkey Ministry of Health, Turkish Medicines and Medical Devices Agency, Ankara, Turkey
| | - Yakup Gültekin
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Selcuk University, Konya, Turkey
| | - Sedat Ünal
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Erciyes University, Kayseri, Turkey
| | - Nasıf Fatih Karakuyu
- Department of Pharmacology, Faculty of Pharmacy, Suleyman Demirel University, Isparta, Turkey
| | - Esra Köngül Şafak
- Department of Pharmacognosy, Faculty of Pharmacy, Erciyes University, Kayseri, Turkey
| | - Osman Doğan
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Esra Pezik
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Erzincan Binali Yıldırım University, Erzincan, Turkey
| | - Muhammet Kerim Haydar
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Erzincan Binali Yıldırım University, Erzincan, Turkey
| | - Eren Aytekin
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Nihat Kurt
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Gaziosmanpasa University, Tokat, Turkey
| | - Burak Batuhan Laçin
- Department of Physiology, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
| |
Collapse
|
2
|
Elmanawy MA, Boraie N, Bakr BA, Makled S. Augmented ocular uptake and anti-inflammatory efficacy of decorated Genistein-loaded NLCs incorporated in in situ gel. Int J Pharm 2024:124508. [PMID: 39053680 DOI: 10.1016/j.ijpharm.2024.124508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 07/20/2024] [Accepted: 07/21/2024] [Indexed: 07/27/2024]
Abstract
Genistein (Gen); a naturally occurring isoflavone, acts as a tyrosine kinase inhibitor and efficiently downregulates inflammatory cytokines, which are pivotal in eye inflammation. Also, Gen suffers from sparse ocular bioavailability due to poor solubility. In this work, nanostructured lipid carriers (NLCs) were successfully fabricated by using solid (stearic acid and compritol) and liquid (oleic acid) lipids. The optimized Gen-loaded NLCs showed a nanosize range of 140-246 nm, ≥ 98 % entrapment efficiency, and controlled release over 48 h. The ζ-potential of NLCs was increased from -27.3 mV to 25-27.4 mV due to surface modification with chitosan (CS) or eudragit RS100 (ERS 100). All NLCs showed prominent biocompatibility with enhanced cellular uptake on corneal stromal fibroblasts. Moreover, the different NLCs were incorporated into a mucoadhesive in situ gel. The optimized in situ gel (G9), containing 20 % poloxamers and 0.5 % hydroxyethyl cellulose, exhibited excellent gelling ability within 10.5 s, gelling temperature at 33.1 ± 0.6 ℃, spreadability diameter of 4.73 ± 0.12 cm, shear-thinning behavior, and 20 min ex vivo mucoadhesion time with drug release for 120 h. The in vivo results showed distinguished permeation and distribution potential for ocular delivery. In vivo anti-inflammatory effects after 3 days of treatment with CS-Gen-NLCs/G9 and ERS-Gen-NLCs/G9 revealed a downregulation of interleukin-6 levels in the cornea and retina compared to the untreated group. Our research highlights the promising anti-inflammatory potential of ERS-Gen-NLCs/G9 as an efficient, non-irritant Gen nanodelivery system for managing anterior and posterior ocular inflammation.
Collapse
Affiliation(s)
- Marwa A Elmanawy
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt
| | - Nabila Boraie
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt
| | - Basant A Bakr
- Department of Zoology, Faculty of Science, Alexandria University, Alexandria 21568, Egypt
| | - Shaimaa Makled
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt.
| |
Collapse
|
3
|
Regu VR, Gohel V, Gaur M, Swain RP, Das J, Subudhi BB. Tamarind seed polysaccharide-metformin insert: Higher ocular retention, slow-release, and efficacy against corneal burn. Int J Pharm 2024; 659:124265. [PMID: 38795935 DOI: 10.1016/j.ijpharm.2024.124265] [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: 03/01/2024] [Revised: 05/20/2024] [Accepted: 05/21/2024] [Indexed: 05/28/2024]
Abstract
Metformin (MET) can be an alternative therapeutic strategy for managing ocular burn primarily because of its pleiotropic mechanism. Longer retention on the ocular surface and sustained release are necessary to ensure the efficacy of MET for ocular application. Although the high aqueous solubility of MET is good for formulation and biocompatibility, it makes MET prone to high nasolacrimal drainage. This limits ocular residence and may be a challenge in its application. To address this, polymers approved for ophthalmic application with natural origin were analyzed through in silico methods to determine their ability to bind to mucin and interact with MET. An ocular insert of MET (3 mg/6 mm) was developed using a scalable solvent casting method without using preservatives. The relative composition of the insert was 58 ± 2.06 %w/w MET with approximately 14 %w/w tamarind seed polysaccharide (TSP), and 28 %w/w propylene glycol (PG). Its stability was demonstrated as per the ICH Q1A (R2) guidelines. Compatibility, ocular retention, drug release, and other functional parameters were evaluated. In rabbits, efficacy was demonstrated in the 'corneal alkali burn preclinical model'. TSP showed potential for mucoadhesion and interaction with MET. With adequate stability and sterility, the insert contributed to adequate retention of MET (10-12 h) in vivo and slow release (30 h) in vitro. This resulted in significant efficacy in vivo.
Collapse
Affiliation(s)
- Varaprasad R Regu
- Drug Development and Analysis Laboratory, School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be) University, Bhubaneswar 751003, Odisha, India
| | - Vinit Gohel
- Drug Development and Analysis Laboratory, School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be) University, Bhubaneswar 751003, Odisha, India
| | - Mahendra Gaur
- Drug Development and Analysis Laboratory, School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be) University, Bhubaneswar 751003, Odisha, India
| | - Ranjit P Swain
- Drug Development and Analysis Laboratory, School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be) University, Bhubaneswar 751003, Odisha, India; GITAM School of Pharmacy, GITAM (Deemed to be University), Rushikonda, Visakhapatnam 530045, Andhra Pradesh, India
| | - Jayakrushna Das
- College of Veterinary Science and Animal Husbandry, Bhubaneswar 751003, Odisha, India
| | - Bharat B Subudhi
- Drug Development and Analysis Laboratory, School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be) University, Bhubaneswar 751003, Odisha, India.
| |
Collapse
|
4
|
Ahmed T, Islam MN, Monalisa R, Ehsan F, Huang SW. Polysaccharides polymers for glaucoma treatment-a review. Eur J Ophthalmol 2024; 34:338-356. [PMID: 37231538 DOI: 10.1177/11206721231178057] [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] [Indexed: 05/27/2023]
Abstract
One of the major challenges in preventing glaucoma progression is patient compliance with medication regimens. Since conventional ophthalmic dosage forms have numerous limitations, researchers have been intensively working on developing polymers-based delivery systems for glaucoma drugs. Specifically, research and development efforts have increased using polysaccharide polymers such as sodium alginate, cellulose, β-cyclodextrin, hyaluronic acid, chitosan, pectin, gellan gum, galactomannans for sustained release to the eye to overcome treatment challenges, showing promise in improving drug release and delivery, patient experience, and treatment compliance. In the recent past, multiple research groups have successfully designed sustained drug delivery systems, promoting the efficacy as well as the feasibility of glaucoma drugs with single/combinations of polysaccharides to eliminate the drawbacks associated with the glaucoma treatment. Naturally available polysaccharides, when used as drug vehicles can increase the retention time of eye drops on the ocular surface, leading to improved drug absorption and bioavailability. Additionally, some polysaccharides can form gels or matrices that can release drugs slowly over time, providing sustained drug delivery and reducing the need for frequent dosing. Thus, this review aims to provide an overview of the pre-clinical and clinical studies of polysaccharide polymers applied for glaucoma treatment along with their therapeutic outcomes.
Collapse
Affiliation(s)
- Tanvir Ahmed
- Food Engineering & Tea Technology, Shahjalal University of Science & Technology, Sylhet 3114, Bangladesh
| | - Md Nazmul Islam
- Deaprtment of Microbiology, Noakhali Science and Technology University, Noakhali 3814, Bangladesh
| | - Rina Monalisa
- Deaprtment of Microbiology, Noakhali Science and Technology University, Noakhali 3814, Bangladesh
| | - Feroz Ehsan
- Department of Medicine, Aziz Fatimah Hospital, Faisalabad 38000, Pakistan
| | - Shu-Wei Huang
- Department of Orthopedics, Wan Fang Hospital, Taipei Medical University, Taipei 116, Taiwan
| |
Collapse
|
5
|
Sharma Y, Patel P, Kurmi BD. A Mini-review on New Developments in Nanocarriers and Polymers for Ophthalmic Drug Delivery Strategies. Curr Drug Deliv 2024; 21:488-508. [PMID: 37143264 DOI: 10.2174/1567201820666230504115446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 02/20/2023] [Accepted: 03/13/2023] [Indexed: 05/06/2023]
Abstract
The eye is an important and vital organ of the human body consisting of two segments - anterior and posterior segments and these segments are associated with many diseases. This review elaborates upon the various eye-related diseases with their medications and carriers used to deliver them. Delivery strategies include drugs encapsulated into liposomes, polymeric micelles of drugs, solid lipid nanoparticles, nanostructured lipid carriers, nano emulsions, and Nanosuspension used to improve penetrating properties, bioavailability, and residence time of the drugs as examples available in the literature. With regard to this, different forms of ocular drug delivery are classified and elaborated. Additionally, the possibility of addressing the physical and chemical complexities of ocular diseases and how they could be overcome with environmentally stable nanoformulations are briefly discussed. Enhanced drug delivery efficiency with various novel pharmaceuticals along with enhanced uptake by different routes/modes of drug administration. Current advancements in drug carrier systems, i.e., nanocarriers, have shown promise for improving the retention time, drug permeation and prolonging the duration of release of the drug in the ocular site. Bio-degradable polymers investigated for the preparation of nanocarriers for the entrapment of drugs and to enhance the efficacy through improved adherence of tissue in the eye, sustained release measures, enhanced bioavailability, lower toxicity, and targeted delivery is applicable. This review covers the introduction of various nanocarriers and polymers for ocular drug delivery with the purpose of enhancing the absorption, retention and bioavailability of medications in the eye.
Collapse
Affiliation(s)
- Yash Sharma
- Department of Pharmaceutical Quality Assurance, ISF College Pharmacy, GT Road, Moga-142001, Punjab, India
| | - Preeti Patel
- Department of Pharmaceutical Chemistry, ISF College Pharmacy, GT Road, Moga-142001, Punjab, India
| | - Balak Das Kurmi
- Department of Pharmaceutics, ISF College Pharmacy, GT Road, Moga-142001, Punjab, India
| |
Collapse
|
6
|
Liu Y, Guo W, Wang W, Zhang H, Jin Y. In situ forming hydrogel loaded with predatory bacteria treats drug-resistant corneal infection. J Control Release 2023; 364:393-405. [PMID: 37898345 DOI: 10.1016/j.jconrel.2023.10.040] [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: 08/15/2023] [Revised: 10/12/2023] [Accepted: 10/25/2023] [Indexed: 10/30/2023]
Abstract
The development of potent bactericidal antibiotic alternatives is important to address the current antibiotic crisis. A representative example is the topical delivery of predatory Bdellovibrio bacteriovorus bacteria to treat ocular bacterial infection. However, the direct topical use of B. bacteriovorus suspensions has the problem of easy loss and inactivation. Here, a B. bacteriovorus in situ forming hydrogel (BIG) was constructed for the ocular delivery of B. bacteriovorus. BIGs, as a fluid in their primitive state, were temperature- and cation- dually sensitive, which was rapidly transformed into immobile gels in the ocular environment. BIGs not only kept the activity of B. bacteriovorus but also retained on the ocular surface for a long time. The biosafety of BIGs was good without HCEC cell toxicity and hemolysis. More importantly, BIGs highly inhibited the growth of drug-resistant Pseudomonas aeruginosa whether in vitro or in the infected rat eyes. The ocular infection was completely controlled by BIGs with no corneal ulcers and inflammations. This living bacteria gel is a promising medication for the local treatment of drug-resistant bacteria-induced ocular infection.
Collapse
Affiliation(s)
- Yan Liu
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China; School of Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
| | - Wanting Guo
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Wanmei Wang
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Hui Zhang
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Yiguang Jin
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China.
| |
Collapse
|
7
|
Eleraky NE, El-Badry M, Omar MM, El-Koussi WM, Mohamed NG, Abdel-Lateef MA, Hassan AS. Curcumin Transferosome-Loaded Thermosensitive Intranasal in situ Gel as Prospective Antiviral Therapy for SARS-Cov-2. Int J Nanomedicine 2023; 18:5831-5869. [PMID: 37869062 PMCID: PMC10590117 DOI: 10.2147/ijn.s423251] [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: 06/18/2023] [Accepted: 09/23/2023] [Indexed: 10/24/2023] Open
Abstract
Purpose Immunomodulatory and broad-spectrum antiviral activities have motivated the evaluation of curcumin for Coronavirus infection 2019 (COVID-19) management. Inadequate bioavailability is the main impediment to the therapeutic effects of oral Cur. This study aimed to develop an optimal curcumin transferosome-loaded thermosensitive in situ gel to improve its delivery to the lungs. Methods Transferosomes were developed by using 33 screening layouts. The phospholipid concentration as well as the concentration and type of surfactant were considered independent variables. The entrapment efficiency (EE%), size, surface charge, and polydispersity index (PDI) were regarded as dependent factors. A cold technique was employed to develop thermosensitive in-situ gels. Optimized transferosomes were loaded onto the selected gels. The produced gel was assessed based on shape attributes, ex vivo permeability enhancement, and the safety of the nasal mucosa. The in vitro cytotoxicity, antiviral cytopathic effect, and plaque assay (CV/CPE/Plaque activity), and in vivo performance were evaluated after intranasal administration in experimental rabbits. Results The optimized preparation displayed a particle size of 664.3 ± 69.3 nm, EE% of 82.8 ± 0.02%, ZP of -11.23 ± 2.5 mV, and PDI of 0.6 ± 0.03. The in vitro curcumin release from the optimized transferosomal gel was markedly improved compared with that of the free drug-loaded gel. An ex vivo permeation study revealed a significant improvement (2.58-fold) in drug permeability across nasal tissues of sheep. Histopathological screening confirmed the safety of these preparations. This formulation showed high antiviral activity against SARS-CoV-2 at reduced concentrations. High relative bioavailability (226.45%) was attained after the formula intranasally administered to rabbits compared to the free drug in-situ gel. The curcumin transferosome gel displayed a relatively high lung accumulation after intranasal administration. Conclusion This study provides a promising formulation for the antiviral treatment of COVID-19 patients, which can be evaluated further in preclinical and clinical studies.
Collapse
Affiliation(s)
- Nermin E Eleraky
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | - Mahmoud El-Badry
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | - Mahmoud M Omar
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Deraya University, Minia, Egypt
- Department of Pharmaceutics and Clinical Pharmacy, Faculty of Pharmacy, Sohag University, Sohag, Egypt
| | - Wesam M El-Koussi
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Sohag University, Sohag, Egypt
| | - Noha G Mohamed
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Sphinx University, Assiut, Egypt
| | - Mohamed A Abdel-Lateef
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, Egypt
| | - Abeer S Hassan
- Department of Pharmaceutics, Faculty of Pharmacy, South Valley University, Qena, Egypt
| |
Collapse
|
8
|
Di Z, Zhou B, Zhou L, Di Y, Wang L, Di L. A Gellan Gum/Sodium Alginate-based gastric-protective hydrogel loaded with a combined herbal extract consisting of Panax notoginseng, Bletilla striata and Dendrobium officinale. Int J Biol Macromol 2023; 250:126277. [PMID: 37572808 DOI: 10.1016/j.ijbiomac.2023.126277] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 08/05/2023] [Accepted: 08/09/2023] [Indexed: 08/14/2023]
Abstract
One Chinese herbal combination consisting of Panax notoginseng, Bletilla striata and Dendrobium officinale (PBD) is an effective Traditional Chinese Medicine (TCM) prescription and is widely used in clinics to treat gastric ulcers due to their safety and effectiveness compared with chemical agents, such as aspirin and omeprazole. Herein, an in situ forming gel (ISFG) based on Gellan Gum (GG) and Sodium Alginate (SA) was designed to deliver extracts of PBD prescription (EPBDP). The central composite design optimized prescription dosage was 0.1 % w/v of GG and 0.5 % w/v of SA. Gels prepared with this formulation demonstrated outstanding fluidity and instantaneous gel formation. In vitro release data showed that sustained drug release occurred in the gel, and the gel was pH-sensitive. The rheological tests confirmed the formation of stable gel, which exhibited strong viscosity and elasticity. In vitro adhesion assays revealed that the gel had strong gastric mucosal adhesion, while in vivo residual rate experiments of active ingredients revealed that the gel might greatly improve the gastric retention of active ingredients. Animal studies demonstrated that the gel was effective in treating gastric ulcers. Hence, the results of the study show that EPBDP-ISFG, a highly pH-sensitive sustained-release system, is effective.
Collapse
Affiliation(s)
- Zhenning Di
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Engineering Research Center for Efficient Delivery System of TCM, Nanjing 210023, China
| | - Bingqian Zhou
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Engineering Research Center for Efficient Delivery System of TCM, Nanjing 210023, China
| | - Luyao Zhou
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Engineering Research Center for Efficient Delivery System of TCM, Nanjing 210023, China
| | - Yawei Di
- East Region Military Command General Hospital, China
| | - Lingchong Wang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Engineering Research Center for Efficient Delivery System of TCM, Nanjing 210023, China.
| | - Liuqing Di
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Engineering Research Center for Efficient Delivery System of TCM, Nanjing 210023, China.
| |
Collapse
|
9
|
Regu VPR, Behera D, Sunkara SP, Gohel V, Tripathy S, Swain RP, Subudhi BB. Ocular Delivery of Metformin for Sustained Release and in Vivo Efficacy. J Pharm Sci 2023; 112:2494-2505. [PMID: 37031863 DOI: 10.1016/j.xphs.2023.04.002] [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: 02/17/2023] [Revised: 04/03/2023] [Accepted: 04/03/2023] [Indexed: 04/11/2023]
Abstract
Metformin is known to lower inflammation, independent of its anti-diabetic action. Thus, topical metformin can be a therapeutic strategy for managing ocular inflammation associated with diabetes. To achieve this and address the issues of ocular retention and controlled release an in situ gel of metformin was developed. The formulations were prepared using sodium hyaluronate, hypromellose, and gellan gum. The composition was optimized by monitoring gelling time/capacity, viscosity, and mucoadhesion. MF5 was selected as the optimized formulation. It showed both chemical and physiological compatibility. It was found to be sterile and stable. MF5 exhibited sustained release of metformin for 8h that fitted best with zero-order kinetics. Further, the release mode was found to be close to the Korsmeyer-Peppas model. Supported by an ex vivo permeation study, it showed potential for prolonged action. It showed a significant reduction in ocular inflammation that was comparable to that of the standard drug. MF5 shows translational potential as a safe alternative to steroids for managing ocular inflammation.
Collapse
Affiliation(s)
- Vara Prasada Rao Regu
- Drug Development and Analysis Laboratory, School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be) University, Bhubaneswar, Odisha, India
| | - Dhananjay Behera
- Drug Development and Analysis Laboratory, School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be) University, Bhubaneswar, Odisha, India
| | - Sai Prathyusha Sunkara
- Drug Development and Analysis Laboratory, School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be) University, Bhubaneswar, Odisha, India
| | - Vinit Gohel
- Drug Development and Analysis Laboratory, School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be) University, Bhubaneswar, Odisha, India; ProCyto Labs Pvt Ltd., KIIT-TBI, Bhubaneswar, Odisha 751024, India
| | - Shyamalendu Tripathy
- Drug Development and Analysis Laboratory, School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be) University, Bhubaneswar, Odisha, India
| | - Ranjit Prasad Swain
- Drug Development and Analysis Laboratory, School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be) University, Bhubaneswar, Odisha, India
| | - Bharat Bhusan Subudhi
- Drug Development and Analysis Laboratory, School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be) University, Bhubaneswar, Odisha, India.
| |
Collapse
|
10
|
Tambe SM, Jain DD, Hasmukh Mehta C, Ashwini T, Yogendra Nayak U, Amin PD. Hot-melt extruded in situ gelling systems (MeltDrops Technology): Formulation development, in silico modelling and in vivo studies. Eur J Pharm Biopharm 2023:S0939-6411(23)00122-4. [PMID: 37182553 DOI: 10.1016/j.ejpb.2023.05.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 05/08/2023] [Indexed: 05/16/2023]
Abstract
In situ gelling systems (ISGS) can prolong retention time and bioavailability of ophthalmic solutions. The complexity and cost of ISGS avert their industrial scale-up and clinical implementation. In this study, we demonstrate novel application of hot-melt extrusion (HME) technology for continuous manufacturing of ISGS (MeltDrops Technology). Timolol maleate (TIM) and dorzolamide hydrochloride (DRZ) loaded MeltDrops were successfully developed using HME for glaucoma management, thereby resolving issues with batch manufacturing of ISGS, prolonging retention time thus improving bioavailability. The MeltDrops technology involves one-step, i.e., passing all the ingredients through an extruder at a screw speed between 20-50 rpm and barrel temperature of 80 °C. The comparative evaluation of MeltDrops and batch-processed ISGS demonstrated that MeltDrops exhibited better physical and chemical content uniformity. The extrusion temperature and screw speed were critical factors influencing content uniformity and properties of the MeltDrops. MeltDrops showed sustained drug release for >12 hours in vitro (TIM= 83.07%; DRZ = 60.43%, 12hours) versus marketed eyedrops. The developed MeltDrops followed Peppas-Sahlin model, combining Fickian diffusion and swelling processes. The in vivo study in New Zealand rabbits revealed superior effectiveness and safety of the MeltDrops as compared to the marketed eyedrops. Herein we conclude, MeltDrops would serve as a cutting-edge platform technology that can be used to manufacture various ISGS with one-step processability, cost-effectiveness, and improved product quality, which are otherwise processed by batch manufacturing that involves numerous complex processing steps.
Collapse
Affiliation(s)
- Srushti M Tambe
- Institute of Chemical Technology, Department of Pharmaceutical Science and Technology, Mumbai 400019, India
| | - Divya D Jain
- Institute of Chemical Technology, Department of Pharmaceutical Science and Technology, Mumbai 400019, India
| | - Chetan Hasmukh Mehta
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - T Ashwini
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Usha Yogendra Nayak
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Purnima D Amin
- Institute of Chemical Technology, Department of Pharmaceutical Science and Technology, Mumbai 400019, India.
| |
Collapse
|
11
|
Allyn MM, Luo RH, Hellwarth EB, Swindle-Reilly KE. Considerations for Polymers Used in Ocular Drug Delivery. Front Med (Lausanne) 2022; 8:787644. [PMID: 35155469 PMCID: PMC8831705 DOI: 10.3389/fmed.2021.787644] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 12/20/2021] [Indexed: 12/15/2022] Open
Abstract
PURPOSE Age-related eye diseases are becoming more prevalent. A notable increase has been seen in the most common causes including glaucoma, age-related macular degeneration (AMD), and cataract. Current clinical treatments vary from tissue replacement with polymers to topical eye drops and intravitreal injections. Research and development efforts have increased using polymers for sustained release to the eye to overcome treatment challenges, showing promise in improving drug release and delivery, patient experience, and treatment compliance. Polymers provide unique properties that allow for specific engineered devices to provide improved treatment options. Recent work has shown the utilization of synthetic and biopolymer derived biomaterials in various forms, with this review containing a focus on polymers Food and Drug Administration (FDA) approved for ocular use. METHODS This provides an overview of some prevalent synthetic polymers and biopolymers used in ocular delivery and their benefits, brief discussion of the various types and synthesis methods used, and administration techniques. Polymers approved by the FDA for different applications in the eye are listed and compared to new polymers being explored in the literature. This article summarizes research findings using polymers for ocular drug delivery from various stages: laboratory, preclinical studies, clinical trials, and currently approved. This review also focuses on some of the challenges to bringing these new innovations to the clinic, including limited selection of approved polymers. RESULTS Polymers help improve drug delivery by increasing solubility, controlling pharmacokinetics, and extending release. Several polymer classes including synthetic, biopolymer, and combinations were discussed along with the benefits and challenges of each class. The ways both polymer synthesis and processing techniques can influence drug release in the eye were discussed. CONCLUSION The use of biomaterials, specifically polymers, is a well-studied field for drug delivery, and polymers have been used as implants in the eye for over 75 years. Promising new ocular drug delivery systems are emerging using polymers an innovative option for treating ocular diseases because of their tunable properties. This review touches on important considerations and challenges of using polymers for sustained ocular drug delivery with the goal translating research to the clinic.
Collapse
Affiliation(s)
- Megan M. Allyn
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, United States
| | - Richard H. Luo
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH, United States
| | - Elle B. Hellwarth
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH, United States
| | - Katelyn E. Swindle-Reilly
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, United States
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH, United States
- Department of Ophthalmology and Visual Sciences, The Ohio State University, Columbus, OH, United States
| |
Collapse
|
12
|
Berillo D, Zharkinbekov Z, Kim Y, Raziyeva K, Temirkhanova K, Saparov A. Stimuli-Responsive Polymers for Transdermal, Transmucosal and Ocular Drug Delivery. Pharmaceutics 2021; 13:2050. [PMID: 34959332 PMCID: PMC8708789 DOI: 10.3390/pharmaceutics13122050] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/24/2021] [Accepted: 11/24/2021] [Indexed: 12/15/2022] Open
Abstract
Despite their conventional and widespread use, oral and intravenous routes of drug administration face several limitations. In particular, orally administered drugs undergo enzymatic degradation in the gastrointestinal tract and first-pass metabolism in the liver, which tend to decrease their bioavailability. Intravenous infusions of medications are invasive, painful and stressful for patients and carry the risk of infections, tissue damage and other adverse reactions. In order to account for these disadvantages, alternative routes of drug delivery, such as transdermal, nasal, oromucosal, ocular and others, have been considered. Moreover, drug formulations have been modified in order to improve their storage stability, solubility, absorption and safety. Recently, stimuli-responsive polymers have been shown to achieve controlled release and enhance the bioavailability of multiple drugs. In this review, we discuss the most up-to-date use of stimuli-responsive materials in order to optimize the delivery of medications that are unstable to pH or undergo primary metabolism via transdermal, nasal, oromucosal and ocular routes. Release kinetics, diffusion parameters and permeation rate of the drug via the mucosa or skin are discussed as well.
Collapse
Affiliation(s)
- Dmitriy Berillo
- Department of Pharmaceutical and Toxicological Chemistry, Pharmacognosy and Botany School of Pharmacy, Asfendiyarov Kazakh National Medical University, Almaty 050000, Kazakhstan
| | - Zharylkasyn Zharkinbekov
- Department of Medicine, School of Medicine, Nazarbayev University, Nur-Sultan 010000, Kazakhstan; (Z.Z.); (Y.K.); (K.R.); (K.T.)
| | - Yevgeniy Kim
- Department of Medicine, School of Medicine, Nazarbayev University, Nur-Sultan 010000, Kazakhstan; (Z.Z.); (Y.K.); (K.R.); (K.T.)
| | - Kamila Raziyeva
- Department of Medicine, School of Medicine, Nazarbayev University, Nur-Sultan 010000, Kazakhstan; (Z.Z.); (Y.K.); (K.R.); (K.T.)
| | - Kamila Temirkhanova
- Department of Medicine, School of Medicine, Nazarbayev University, Nur-Sultan 010000, Kazakhstan; (Z.Z.); (Y.K.); (K.R.); (K.T.)
| | - Arman Saparov
- Department of Medicine, School of Medicine, Nazarbayev University, Nur-Sultan 010000, Kazakhstan; (Z.Z.); (Y.K.); (K.R.); (K.T.)
| |
Collapse
|