1
|
Dey A, Singhvi G, Puri A, Kesharwani P, Dubey SK. An insight into photodynamic therapy towards treating major dermatological conditions. J Drug Deliv Sci Technol 2022; 76:103751. [PMID: 36159728 PMCID: PMC9495279 DOI: 10.1016/j.jddst.2022.103751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Photodynamic therapy (PDT), as the name suggests is a light-based, non-invasive therapeutic treatment method that has garnered immense interest in the recent past for its efficacy in treating several pathological conditions. PDT has prominent use in the treatment of several dermatological conditions, which consequently have cosmetic benefits associated with it as PDT improves the overall appearance of the affected area. PDT is commonly used for repairing sun-damaged skin, providing skin rejuvenation, curbing pre-cancerous cells, treating conditions like acne, keratosis, skin-microbial infections, and cutaneous warts, etc. PDT mediates its action by generating oxygen species that are involved in bringing about immunomodulation, suppression of microbial load, wound-healing, lightening of scarring, etc. Although there are several challenges associated with PDT, the prominent ones being pain, erythema, insufficient delivery of the photosensitizing agent, and poor clinical outcomes, still PDT stands to be a promising approach with continuous efforts towards maximizing clinical efficacy while being cautious of the side effects and working towards lessening them. This article discusses the major skin-related conditions which can be treated or managed by employing PDT as a better or comparable alternative to conventional treatment approaches such that it also brings about aesthetic improvements thereof.
Collapse
Affiliation(s)
- Anuradha Dey
- R&D Healthcare Division, Emami Ltd, 13, BT Road, Belgharia, Kolkata 700056, India
| | - Gautam Singhvi
- Department of Pharmacy, Birla Institute of Technology and Science, Pilani, Pilani Campus, Rajasthan, India-333031
| | - Anu Puri
- RNA Structure and Design Section, RNA Biology Laboratory (RBL), Center for Cancer Research, National Cancer Institute — Frederick, Frederick, MD, 21702, USA
| | - Prashant Kesharwani
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India
- University Institute of Pharma Sciences, Chandigarh University, Mohali, Punjab, India
| | - Sunil Kumar Dubey
- R&D Healthcare Division, Emami Ltd, 13, BT Road, Belgharia, Kolkata 700056, India
| |
Collapse
|
2
|
Assessing the Synergistic Activity of Clarithromycin and Therapeutic Oils Encapsulated in Sodium Alginate Based Floating Microbeads. Microorganisms 2022; 10:microorganisms10061171. [PMID: 35744690 PMCID: PMC9230626 DOI: 10.3390/microorganisms10061171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 05/30/2022] [Accepted: 05/31/2022] [Indexed: 02/04/2023] Open
Abstract
We developed alginate-based floating microbeads of clarithromycin with therapeutic oils for the possible eradication of Helicobacter pylori (H. pylori) infections by enhancing the residence time of the carrier at the site of infection. In pursuit of this endeavor, the alginate was blended with hydroxy propyl methyl cellulose (HPMC) as an interpenetrating polymer to develop beads by ionotropic gelation using calcium carbonate as a gas generating agent. The developed microbeads remained buoyant under gastric conditions for 24 h. These microbeads initially swelled and afterwards decreased in size, possibly due to the erosion of the polymer. Furthermore, swelling was also affected by the type of encapsulated oil, i.e., swelling decreased with increasing concentrations of eucalyptus oil and increased with increasing concentrations of oleic acid. Antibacterial assays of the formulations showed significant antibacterial activity against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli); these assays also showed synergistic activity between clarithromycin and therapeutic oils as evident from the higher zone of inhibition of the microbeads as compared to the pure drug and oils. Scanning electron microscopy (SEM) images revealed a smoother surface for oleic acid containing the formulation as compared to eucalyptus oil containing the formulation. Differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) revealed the development of a stable formulation, while Fourier transform infrared spectrophotometry (FTIR) studies did not reveal any interaction between the polymers and the active ingredients. Optimized formulations (CLM3 and CLM6) were designed to release the drug in a controlled manner in gastric media by Fickian diffusion. Conclusively, the developed microbeads are a promising carrier to overcome the narrow therapeutic index and low bioavailability of clarithromycin, while the presence of therapeutic oils will produce synergistic effects with the drug to eradicate infection effectively.
Collapse
|
3
|
Jain SK, Jain AK, Rajpoot K. Expedition of Eudragit® Polymers in the Development of Novel Drug Delivery Systems. Curr Drug Deliv 2020; 17:448-469. [PMID: 32394836 DOI: 10.2174/1567201817666200512093639] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 01/10/2020] [Accepted: 04/20/2020] [Indexed: 12/16/2022]
Abstract
Eudragit® polymer has been widely used in film-coating for enhancing the quality of products over other materials (e.g., shellac or sugar). Eudragit® polymers are obtained synthetically from the esters of acrylic and methacrylic acid. For the last few years, they have shown immense potential in the formulations of conventional, pH-triggered, and novel drug delivery systems for incorporating a vast range of therapeutics including proteins, vitamins, hormones, vaccines, and genes. Different grades of Eudragit® have been used for designing and delivery of therapeutics at a specific site via the oral route, for instance, in stomach-specific delivery, intestinal delivery, colon-specific delivery, mucosal delivery. Further, these polymers have also shown their great aptitude in topical and ophthalmic delivery. Moreover, available literature evidences the promises of distinct Eudragit® polymers for efficient targeting of incorporated drugs to the site of interest. This review summarizes some potential researches that are being conducted by eminent scientists utilizing the distinct grades of Eudragit® polymers for efficient delivery of therapeutics at various sites of interest.
Collapse
Affiliation(s)
- Sunil Kumar Jain
- Institute of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur (C.G.) 495 009, India
| | - Akhlesh K Jain
- Institute of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur (C.G.) 495 009, India
| | - Kuldeep Rajpoot
- Institute of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur (C.G.) 495 009, India
| |
Collapse
|
4
|
Basha M, Salama A, Noshi SH. Soluplus® based solid dispersion as fast disintegrating tablets: a combined experimental approach for enhancing the dissolution and antiulcer efficacy of famotidine. Drug Dev Ind Pharm 2020; 46:253-263. [DOI: 10.1080/03639045.2020.1716376] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Mona Basha
- Department of Pharmaceutical Technology, National Research Centre, Cairo, Egypt
| | - Abeer Salama
- Department of Pharmacology, National Research Centre, Cairo, Egypt
| | - Shereen H. Noshi
- Department of Pharmaceutics, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), Cairo, Egypt
| |
Collapse
|
5
|
Vasvári G, Haimhoffer Á, Horváth L, Budai I, Trencsényi G, Béresová M, Dobó-Nagy C, Váradi J, Bácskay I, Ujhelyi Z, Fehér P, Sinka D, Vecsernyés M, Fenyvesi F. Development and Characterisation of Gastroretentive Solid Dosage Form Based on Melt Foaming. AAPS PharmSciTech 2019; 20:290. [PMID: 31428895 PMCID: PMC6700043 DOI: 10.1208/s12249-019-1500-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 08/01/2019] [Indexed: 11/30/2022] Open
Abstract
Dosage forms with increased gastric residence time are promising tools to increase bioavailability of drugs with narrow absorption window. Low-density floating formulations could avoid gastric emptying; therefore, sustained drug release can be achieved. Our aim was to develop a new technology to produce low-density floating formulations by melt foaming. Excipients were selected carefully, with the criteria of low gastric irritation, melting range below 70°C and well-known use in oral drug formulations. PEG 4000, Labrasol and stearic acid type 50 were used to create metronidazole dispersion which was foamed by air on atmospheric pressure using in-house developed apparatus at 53°C. Stearic acid was necessary to improve the foamability of the molten dispersion. Additionally, it reduced matrix erosion, thus prolonging drug dissolution and preserving hardness of the moulded foam. Labrasol as a liquid solubiliser can be used to increase drug release rate and drug solubility. Based on the SEM images, metronidazole in the molten foam remained in crystalline form. MicroCT scans with the electron microscopic images revealed that the foam has a closed-cell structure, where spherical voids have smooth inner wall, they are randomly dispersed, while adjacent voids often interconnected with each other. Drug release from all compositions followed Korsmeyer-Peppas kinetic model. Erosion of the matrix was the main mechanism of the release of metronidazole. Texture analysis confirmed that stearic acid plays a key role in preserving the integrity of the matrix during dissolution in acidic buffer. The technology creates low density and solid matrix system with micronsized air-filled voids.
Collapse
|
6
|
Zhu CY, Wang JY, Huang J, Han GH, Ji YY, Zhang XR, Liang D. Preparation and evaluation of gastro-floating hollow adhesive microspheres of carbomer/ethyl cellulose encapsulating dipyridamole. NEW J CHEM 2019. [DOI: 10.1039/c8nj06398b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Gastro-floating hollow adhesive microspheres of Carbomer/ethyl cellulose encapsulating dipyridamole were fabricated and evaluated in vitro and in vivo.
Collapse
Affiliation(s)
- Cheng-Yun Zhu
- School of Pharmacy
- Shenyang Pharmaceutical University
- Shenyang 110016
- China
| | - Jin-Yue Wang
- School of Traditional Chinese Materia Medica
- Shenyang Pharmaceutical University
- Shenyang 110016
- P. R. China
| | - Jin Huang
- School of Traditional Chinese Materia Medica
- Shenyang Pharmaceutical University
- Shenyang 110016
- P. R. China
| | - Guo-Hua Han
- School of Pharmacy
- Shenyang Pharmaceutical University
- Shenyang 110016
- China
| | - Yan-Yan Ji
- School of Pharmacy
- Shenyang Pharmaceutical University
- Shenyang 110016
- China
| | - Xiang-Rong Zhang
- School of Functional Food and Wine
- Shenyang Pharmaceutical University
- Shenyang 110016
- P. R. China
- State Key Laboratory of Medicinal Resources
| | - Dong Liang
- State Key Laboratory of Medicinal Resources
- Chemistry and Molecular Engineering
- Guangxi Normal University
- Gui Lin 541006
- P. R. China
| |
Collapse
|
7
|
Design, in vitro/in vivo evaluation of meclizine HCl-loaded floating microspheres targeting pregnancy-related nausea and vomiting. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2018.08.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
8
|
Souery WN, Bishop CJ. Clinically advancing and promising polymer-based therapeutics. Acta Biomater 2018; 67:1-20. [PMID: 29246651 DOI: 10.1016/j.actbio.2017.11.044] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 11/11/2017] [Accepted: 11/27/2017] [Indexed: 12/11/2022]
Abstract
In this review article, we will examine the history of polymers and their evolution from provisional World War II materials to medical therapeutics. To provide a comprehensive look at the current state of polymer-based therapeutics, we will classify technologies according to targeted areas of interest, including central nervous system-based and intraocular-, gastrointestinal-, cardiovascular-, dermal-, reproductive-, skeletal-, and neoplastic-based systems. Within each of these areas, we will consider several examples of novel, clinically available polymer-based therapeutics; in addition, this review will also include a discussion of developing therapies, ranging from the in vivo to clinical trial stage, for each targeted area of treatment. Finally, we will emphasize areas of patient care in need of more effective, accessible, and targeted treatment approaches where polymer-based therapeutics may offer potential solutions.
Collapse
Affiliation(s)
- Whitney N Souery
- Department of Biomedical Engineering, Texas A&M University, Emerging Technologies Building, 101 Bizzell St., College Station, TX 77843, USA
| | - Corey J Bishop
- Department of Biomedical Engineering, Texas A&M University, Emerging Technologies Building, 101 Bizzell St., College Station, TX 77843, USA.
| |
Collapse
|
9
|
Jain A, Sharma G, Kushwah V, Ghoshal G, Jain A, Singh B, Shivhare US, Jain S, Katare OP. Beta carotene-loaded zein nanoparticles to improve the biopharmaceutical attributes and to abolish the toxicity of methotrexate: a preclinical study for breast cancer. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2018; 46:402-412. [PMID: 29361842 DOI: 10.1080/21691401.2018.1428811] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Beta carotene (βC) loaded nanoparticles of zein (βC-NPs) were developed using modified phase separation technique. βC-NPs were prepared using different zein concentration and optimized formulation was selected on the basis of micromeritics properties and entrapment efficiency. Further, βC-NPs were evaluated for in vitro release, in vitro cell-survival, cellular localization and apoptosis induced in MCF-7 cells. The combined effect of the βC and its nanoparticulate counterpart with MTX was evaluated thereafter for cytotoxicity and apoptotic activity in MCF-7 cells. In comparison to free βC, the βC-NPs demonstrated noteworthy improvement in various biopharmaceutical attributes viz Cmax (∼2.3-folds), AUCtotal (2.7-folds), t1/2 (∼1.5 folds) and MRT (∼1.5 folds), further indicating the remarkable increment in oral bioavailability of βC after incorporation in zein nanoparticles. The anti-tumour potential of prepared βC-NPs and effects of free βC and βC-NPs were investigated upon anticancer efficacy of methotrexate (MTX) in experimentally induced breast cancer rat model. Protective role of βC on MTX-associated hepatic toxicity in wistar rats was also determined using haematological and histopathological approaches. In a nutshell, zein nanoparticles improved the cellular uptake, cytotoxicity and exhibited enhanced oral biopharmaceutical performance of βC. This combination regimen could also be promising platform to facilitate the therapeutic benefits of anticancer agents.
Collapse
Affiliation(s)
- Ashay Jain
- a University Institute of Pharmaceutical Sciences, Panjab University , Chandigarh , India.,b UGC-Centre of Excellence in Applications of Nanomaterials, Nanoparticles and Nanocomposites, Panjab University , Chandigarh , India.,c Dr. S. S. Bhatnagar University Institute of Chemical Engineering & Technology, Panjab University , Chandigarh , India
| | - Gajanand Sharma
- a University Institute of Pharmaceutical Sciences, Panjab University , Chandigarh , India
| | - Varun Kushwah
- d Department of Pharmaceutics , National Institute of Pharmaceutical Education and Research , SAS Nagar , India
| | - Gargi Ghoshal
- c Dr. S. S. Bhatnagar University Institute of Chemical Engineering & Technology, Panjab University , Chandigarh , India
| | - Atul Jain
- b UGC-Centre of Excellence in Applications of Nanomaterials, Nanoparticles and Nanocomposites, Panjab University , Chandigarh , India
| | - Bhupinder Singh
- c Dr. S. S. Bhatnagar University Institute of Chemical Engineering & Technology, Panjab University , Chandigarh , India
| | - U S Shivhare
- c Dr. S. S. Bhatnagar University Institute of Chemical Engineering & Technology, Panjab University , Chandigarh , India
| | - Sanyog Jain
- d Department of Pharmaceutics , National Institute of Pharmaceutical Education and Research , SAS Nagar , India
| | - O P Katare
- a University Institute of Pharmaceutical Sciences, Panjab University , Chandigarh , India
| |
Collapse
|
10
|
Jain A, Sharma G, Kushwah V, Garg NK, Kesharwani P, Ghoshal G, Singh B, Shivhare US, Jain S, Katare OP. Methotrexate and beta-carotene loaded-lipid polymer hybrid nanoparticles: a preclinical study for breast cancer. Nanomedicine (Lond) 2017; 12:1851-1872. [DOI: 10.2217/nnm-2017-0011] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Aim: This work was intended to investigate the targeting potential of fructose-tethered lipid-polymeric hybrid nanoparticles (F-BC-MTX-LPHNPs) co-loaded with beta carotene (BC) and methotrexate (MTX) in breast cancer therapeutics and find out the possible protective role of BC on MTX-induced toxicity. Materials & methods: F-BC-MTX-LPHNPs were fabricated using self-assembled nano-precipitation technique. Fructose was conjugated on the surface of the particles. The in vitro cytotoxicity, sub-cellular localization and apoptotic activity of F-BC-MTX-LPHNPs were evaluated against MCF-7 breast cancer cells. The antitumor potential of F-BC-MTX-LPHNPs was further studied. Results & conclusion: Outcomes suggested that F-BC-MTX-LPHNPs induced the highest apoptosis index (0.89) against MCF-7 cells. Following 30 days of treatment, the residual tumor progression was assessed to be approximately 32%, in animals treated with F-BC-MTX-LPHNPs. F-BC-MTX-LPHNPs are competent to selectively convey the chemotherapeutic agent to the breast cancers. Beta carotene ameliorated MTX-induced hepatic and renal toxicity.
Collapse
Affiliation(s)
- Ashay Jain
- University Institute of Pharmaceutical Sciences, UGC-Centre of Advanced Studies, Panjab University, Chandigarh 160 014, India
- UGC-Centre of Excellence in Applications of Nanomaterials, Nanoparticles & Nanocomposites, Panjab University, Chandigarh 160 014, India
- Dr. S. S. Bhatnagar University Institute of Chemical Engineering & Technology, Panjab University, Chandigarh 160 014, India
| | - Gajanand Sharma
- University Institute of Pharmaceutical Sciences, UGC-Centre of Advanced Studies, Panjab University, Chandigarh 160 014, India
| | - Varun Kushwah
- Department of Pharmaceutics, National Institute of Pharmaceutical Education & Research, SAS Nagar, Punjab 160 062, India
| | - Neeraj K Garg
- University Institute of Pharmaceutical Sciences, UGC-Centre of Advanced Studies, Panjab University, Chandigarh 160 014, India
- Department of Endocrinology, Postgraduate Institute of Medical Education & Research, Chandigarh 160012, India
| | - Prashant Kesharwani
- Department of Pharmaceutical Technology, The International Medical University (IMU), Jalan Jalil Perkasa 19, Kuala Lumpur 57000, Malaysia
| | - Gargi Ghoshal
- Dr. S. S. Bhatnagar University Institute of Chemical Engineering & Technology, Panjab University, Chandigarh 160 014, India
| | - Bhupinder Singh
- Dr. S. S. Bhatnagar University Institute of Chemical Engineering & Technology, Panjab University, Chandigarh 160 014, India
| | - Uma Shankar Shivhare
- Dr. S. S. Bhatnagar University Institute of Chemical Engineering & Technology, Panjab University, Chandigarh 160 014, India
| | - Sanyog Jain
- Department of Pharmaceutics, National Institute of Pharmaceutical Education & Research, SAS Nagar, Punjab 160 062, India
| | - Om Prakash Katare
- University Institute of Pharmaceutical Sciences, UGC-Centre of Advanced Studies, Panjab University, Chandigarh 160 014, India
| |
Collapse
|
11
|
Kesharwani P, Gothwal A, Iyer AK, Jain K, Chourasia MK, Gupta U. Dendrimer nanohybrid carrier systems: an expanding horizon for targeted drug and gene delivery. Drug Discov Today 2017; 23:300-314. [PMID: 28697371 DOI: 10.1016/j.drudis.2017.06.009] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 05/30/2017] [Accepted: 06/28/2017] [Indexed: 12/21/2022]
Abstract
Highly controllable dendritic structural design means dendrimers are a leading carrier in drug delivery applications. Dendrimer- and other nanocarrier-based hybrid systems are an emerging platform in the field of drug delivery. This review is a compilation of increasing reports of dendrimer interactions, such as dendrimer-liposome, dendrimer-carbon-nanotube, among others, known as hybrid carriers. This should prompt entirely new research with promising results for these hybrid carriers. It is assumed that such emerging hybrid nanosystems - from combining two already-established drug delivery platforms - could lead the way for the development of newer delivery systems with multiple applicability for latent theranostic applications in the future.
Collapse
Affiliation(s)
- Prashant Kesharwani
- Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI 48201, USA.
| | - Avinash Gothwal
- Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Bandarsindri, Kishangarh, Ajmer 305801, India
| | - Arun K Iyer
- Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI 48201, USA; Molecular Therapeutics Program, Barbara Ann Karmanos Cancer Institute, Wayne State University, School of Medicine, Detroit, MI 48201, USA.
| | - Keerti Jain
- Faculty of Pharmacy, M. S. University of Baroda, Vadodara, India
| | - Manish K Chourasia
- Pharmaceutics Division, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh 226031, India
| | - Umesh Gupta
- Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Bandarsindri, Kishangarh, Ajmer 305801, India.
| |
Collapse
|
12
|
Thakur D, Jain A, Ghoshal G, Shivhare U, Katare O. Microencapsulation of β-Carotene Based on Casein/Guar Gum Blend Using Zeta Potential-Yield Stress Phenomenon: an Approach to Enhance Photo-stability and Retention of Functionality. AAPS PharmSciTech 2017; 18:1447-1459. [PMID: 28550604 DOI: 10.1208/s12249-017-0806-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Accepted: 05/08/2017] [Indexed: 01/16/2023] Open
Abstract
β-Carotene, abundant majorly in carrot, pink guava yams, spinach, kale, sweet potato, and palm oil, is an important nutrient for human health due to its scavenging action upon reactive free radicals wherever produced in the body. Inclusion of liposoluble β-carotene in foods and food ingredients is a challenging aspect due to its labile nature and low absorption from natural sources. This fact has led to the application of encapsulation of β-carotene to improve stability and bioavailability. The present work was aimed to fabricate microcapsules (MCs) of β-carotene oily dispersion using the complex coacervation technique with casein (CA) and guar gum (GG) blend. The ratio of CA:GG was found to be 1:0.5 (w/v) when optimized on the basis of zeta potential-yield stress phenomenon. These possessed a higher percentage yield (71.34 ± 0.55%), lower particle size (176.47 ± 4.65 μm), higher encapsulation efficiency (65.95 ± 5.33%), and in general, a uniform surface morphology was observed with particles showing optimized release behavior. Prepared MCs manifested effective and controlled release (up to 98%) following zero-order kinetics which was adequately explained by the Korseymer-Peppas model. The stability of the freeze-dried MCs was established in simulated gastrointestinal fluids (SGF, SIF) for 8 h. Antioxidant activity of the MCs was studied and revealed the retention of the functional architecture of β-carotene in freeze-dried MCs. Minimal photolytic degradation upon encapsulation of β-carotene addressed the challenge regarding photo-stability of β-carotene as confirmed via mass spectroscopy.
Collapse
|
13
|
Lin YH, Lu KY, Tseng CL, Wu JY, Chen CH, Mi FL. Development of genipin-crosslinked fucoidan/chitosan-N-arginine nanogels for preventing Helicobacter infection. Nanomedicine (Lond) 2017; 12:1491-1510. [PMID: 28524785 DOI: 10.2217/nnm-2017-0055] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
AIM This study aims to validate the anti-Helicobacter pylori efficacy of amoxicillin-loaded nanoparticles and nanogels with pH-responsive and site-specific drug release properties against H. pylori infection. MATERIALS & METHODS Genipin-crosslinked low molecular weight fucoidan/chitosan-N-arginine nanogels (FCSA) were prepared for targeted delivery of amoxicillin to the site of H. pylori infected AGS gastric epithelial cells. RESULTS The negatively charged nanogels (n-FCSA) adhered to H. pylori and exhibited pH-responsive drug release property to reduce cytotoxic effects in H. pylori infected AGS cells. CONCLUSION These in vitro findings suggest that n-FCSA nanogels are potential carriers for H. pylori specific delivery of antibacterial agents, and provide the basis for further studies on the clinical use of the nanogels.
Collapse
Affiliation(s)
- Yu-Hsin Lin
- Department of Biological Science & Technology, China Medical University, Taichung 40402, Taiwan, ROC.,Department of Bioinformatics & Medical Engineering, Asia University, Taichung 41354, Taiwan
| | - Kun-Ying Lu
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Ching-Li Tseng
- Graduate Institute of Biomedical Materials & Tissue Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei City 11031, Taiwan, ROC
| | - Jui-Yu Wu
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.,Department of Biochemistry & Molecular Cell Biology, School of medicine, College of medicine, Taipei Medical University, Taipei City 11031, Taiwan
| | - Chien-Ho Chen
- School of Medical Laboratory Science & Biotechnology, College of Medical Science & Technology, Taipei Medical University, Taipei, Taiwan
| | - Fwu-Long Mi
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.,Department of Biochemistry & Molecular Cell Biology, School of medicine, College of medicine, Taipei Medical University, Taipei City 11031, Taiwan.,Graduate Institute of Nanomedicine & Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
| |
Collapse
|
14
|
Verma A, Dubey J, Hegde RR, Rastogi V, Pandit JK. Helicobacter pylori: past, current and future treatment strategies with gastroretentive drug delivery systems. J Drug Target 2016; 24:897-915. [DOI: 10.3109/1061186x.2016.1171326] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|