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Ghosh A, Khanam N, Nath D. Solid lipid nanoparticle: A potent vehicle of the kaempferol for brain delivery through the blood-brain barrier in the focal cerebral ischemic rat. Chem Biol Interact 2024; 397:111084. [PMID: 38823537 DOI: 10.1016/j.cbi.2024.111084] [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: 11/29/2023] [Revised: 05/22/2024] [Accepted: 05/29/2024] [Indexed: 06/03/2024]
Abstract
Kaempferol is major flavonoid present in Convolvulus pluricaulis. This phytochemical protects the brain against oxidative stress, neuro-inflammation, neurotoxicity, neurodegeneration and cerebral ischemia induced neuronal destruction. Kaempferol is poorly water soluble. Our study proved that solid lipid nanoparticles (SLNs) were efficient carrier of kaempferol through blood-brain barrier (BBB). Kaempferol was incorporated into SLNs prepared from stearic acid with polysorbate 80 by the process of ultrasonication. Mean particle size and zeta potential of kaempferol loaded solid lipid nanoparticles (K-SLNs) were 451.2 nm and -15.0 mV. Atomic force microscopy showed that K-SLNs were spherical in shape. Fourier transformed infrared microscopy (FTIR) showed that both stearic acid and kaempferol were present in K-SLNs. X-ray diffraction (XRD) and differential scanning calorimetry (DSC) revealed that the matrices of K-SLNs were in untidy crystalline state. Entraptment efficiency of K-SLNs was 84.92%. In-vitro drug release percentage was 93.24%. Kaempferol loaded solid lipid nanoparticles (K-SLNs) showed controlled release profile. In-vitro uptake study showed significant efficiency of K-SLNs to cross blood-brain barrier (BBB). After oral administration into the focal cerebral ischemic rat, accumulation of fluorescent labeled K-SLNs was observed in the brain cortex which confirmed its penetrability into the brain. It significantly decreased the neurological deficit, infarct volume and level of reactive oxygen species (ROS) and decreased the level of pro-inflammatory mediators like NF-κB and p-STAT3. Damaged neurons and brain texture were improved. This study indicated increased bioavailability of kaempferol into the brain tissue through SLNs formulation.
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Affiliation(s)
- Ashutosh Ghosh
- Department of Zoology, University of Kalyani, Nadia, West Bengal, 741235, India
| | - Nasima Khanam
- Department of Zoology, University of Kalyani, Nadia, West Bengal, 741235, India
| | - Debjani Nath
- Department of Zoology, University of Kalyani, Nadia, West Bengal, 741235, India.
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Huang J, Feng X, Zhang S, Wang L, Yue J, Chu L. Preparation and characterization of astaxanthin-loaded microcapsules and its application in effervescent tablets. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:1421-1431. [PMID: 36156800 DOI: 10.1002/jsfa.12237] [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: 04/23/2022] [Revised: 09/11/2022] [Accepted: 09/26/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Astaxanthin is a type of keto-carotene with potential health benefits. However, astaxanthin has poor solubility and stability, resulting in its low oral bio-availability. Microcapsules can be used to improve the water solubility, stability and oral bio-availability of lipophilic bioactive compounds. Effervescent tablets can further improve the stability, smell and taste of microcapsules, and are more easily accepted by consumers. RESULTS Astaxanthin-loaded microcapsules were prepared by layer-by-layer assembly and freeze-drying technologies. Sodium caseinate and κ-carrageenan were applied as wall materials. The prepared microcapsules had good flow properties and encapsulation efficiencies (> 85%). Fourier transform infrared spectroscopy demonstrated that the mechanisms of layer-by-layer self-assembly between sodium caseinate and κ-carrageenan might be electrostatic adsorption and hydrogen bonding. The preparation process and excipients did not affect the antioxidant effect of astaxanthin. The in vitro simulated digestion study showed that microcapsules were mainly dissolved and digested in the simulated intestinal solution. Compared with its raw material, microencapsulation could improve the bio-accessibility of astaxanthin greatly. Then, astaxanthin-loaded microcapsules were incorporated into effervescent tablets by wet granulation and tablet-pressing methods. The dissolution of astaxanthin from effervescent tablets was over 90% in 2 h, which indicated a good dissolution effect. A cytotoxicity study revealed that astaxanthin loaded effervescent tablets had a good biocompatibility. Encapsulating astaxanthin-loaded microcapsules in effervescent tablets can improve its chemical stability. CONCLUSION Effervescent tablets containing microcapsules could be used to improve the solubility, stability and bio-accessibility of lipophilic bioactive compounds. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Juan Huang
- School of Biology and Food Engineering, Changshu Institute of Technology, Changshu, China
- The East China Science and Technology Research Institute of Changshu Company Limited, Changshu, China
| | - Xuan Feng
- School of Biology and Food Engineering, Changshu Institute of Technology, Changshu, China
| | - Shuo Zhang
- School of Biology and Food Engineering, Changshu Institute of Technology, Changshu, China
| | - Lizeng Wang
- School of Biology and Food Engineering, Changshu Institute of Technology, Changshu, China
| | - Jingjing Yue
- School of Biology and Food Engineering, Changshu Institute of Technology, Changshu, China
| | - Lanling Chu
- Faculty of Food Science and Engineering, School of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing, China
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Zhao W, Zeng M, Li K, Pi C, Liu Z, Zhan C, Yuan J, Su Z, Wei Y, Wen J, Pi F, Song X, Lee RJ, Wei Y, Zhao L. Solid lipid nanoparticle as an effective drug delivery system of a novel curcumin derivative: formulation, release in vitro and pharmacokinetics in vivo. PHARMACEUTICAL BIOLOGY 2022; 60:2300-2307. [PMID: 36606719 PMCID: PMC9704087 DOI: 10.1080/13880209.2022.2136205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 09/20/2022] [Accepted: 10/09/2022] [Indexed: 06/17/2023]
Abstract
CONTEXT Curcumin (Cur) has a short duration of action which limits its therapeutic efficacy. Carbonic acid 17-(1,5-dimethyl-hexyl)-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester 4-[7-(4-hydroxy-3-methoxy-phenyl)-3,5-dioxo-hepta-1,6-dienyl]-2-methoxy-phenyl ester (CUD), as a small molecule derivative of Cur with superior stability, has been developed in our laboratory. OBJECTIVE CUD-loaded solid lipid nanoparticles (CUD-SLN) were prepared to prolong the duration of the drug action of Cur. MATERIALS AND METHODS CUD-SLN were prepared with Poloxamer 188 (F68) and hydrogenated soybean phospholipids (HSPC) as carriers, and the prescription was optimized. The in vitro release of CUD and CUD-SLN was investigated. CUD-SLN (5 mg/kg) was injected into Sprague Dawley (SD) rats to investigate its pharmacokinetic behaviour. RESULTS CUD-SLN features high entrapment efficiency (96.8 ± 0.4%), uniform particle size (113.0 ± 0.8 nm), polydispersity index (PDI) (0.177 ± 0.007) and an appropriate drug loading capacity (6.2 ± 0.1%). Optimized CUD-SLN exhibited sustained release of CUD for about 48 h. Moreover, the results of the pharmacokinetic studies showed that, compared to Cur, CUD-SLN had a considerably prolonged half-life of 14.7 h, slowed its metabolism in vivo by 35.6-fold, and had an improved area under the curve (AUC0-t) of 37.0-fold. CONCLUSIONS CUD-SLN is a promising preparation for the development of a small molecule derivative of Cur.
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Affiliation(s)
- Wenmei Zhao
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy of Southwest Medical University, Luzhou, PR China
- Luzhou Key Laboratory of Traditional Chinese Medicine for Chronic Diseases Jointly Built by Sichuan and Chongqing, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, PR China
- Central Nervous System Drug Key Laboratory of Sichuan Province, Southwest Medical University, Luzhou, PR China
| | - Mingtang Zeng
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy of Southwest Medical University, Luzhou, PR China
- Luzhou Key Laboratory of Traditional Chinese Medicine for Chronic Diseases Jointly Built by Sichuan and Chongqing, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, PR China
- Central Nervous System Drug Key Laboratory of Sichuan Province, Southwest Medical University, Luzhou, PR China
| | - Ke Li
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy of Southwest Medical University, Luzhou, PR China
- Luzhou Key Laboratory of Traditional Chinese Medicine for Chronic Diseases Jointly Built by Sichuan and Chongqing, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, PR China
- Central Nervous System Drug Key Laboratory of Sichuan Province, Southwest Medical University, Luzhou, PR China
| | - Chao Pi
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy of Southwest Medical University, Luzhou, PR China
- Luzhou Key Laboratory of Traditional Chinese Medicine for Chronic Diseases Jointly Built by Sichuan and Chongqing, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, PR China
- Central Nervous System Drug Key Laboratory of Sichuan Province, Southwest Medical University, Luzhou, PR China
| | - Zerong Liu
- Central Nervous System Drug Key Laboratory of Sichuan Province, Sichuan Credit Pharmaceutical Co., Ltd., Luzhou City, PR China
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, PR China
| | - Chenglin Zhan
- Department of Pharmacy, The Affiliated Hospital of Southwest Medical University, Luzhou, PR China
| | - Jiyuan Yuan
- Luzhou Key Laboratory of Traditional Chinese Medicine for Chronic Diseases Jointly Built by Sichuan and Chongqing, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, PR China
- Clinical Trial Center, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, PR China
| | - Zhilian Su
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy of Southwest Medical University, Luzhou, PR China
- Luzhou Key Laboratory of Traditional Chinese Medicine for Chronic Diseases Jointly Built by Sichuan and Chongqing, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, PR China
- Central Nervous System Drug Key Laboratory of Sichuan Province, Southwest Medical University, Luzhou, PR China
| | - Yuxun Wei
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy of Southwest Medical University, Luzhou, PR China
- Luzhou Key Laboratory of Traditional Chinese Medicine for Chronic Diseases Jointly Built by Sichuan and Chongqing, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, PR China
- Central Nervous System Drug Key Laboratory of Sichuan Province, Southwest Medical University, Luzhou, PR China
| | - Jie Wen
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy of Southwest Medical University, Luzhou, PR China
- Luzhou Key Laboratory of Traditional Chinese Medicine for Chronic Diseases Jointly Built by Sichuan and Chongqing, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, PR China
- Central Nervous System Drug Key Laboratory of Sichuan Province, Southwest Medical University, Luzhou, PR China
| | - Fengjuan Pi
- Department of Pharmacy, The Traditional Chinese Medicine Hospital of Luzhou, Luzhou, PR China
| | - Xinjie Song
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, China
- Department of Food Science and Technology, Yeungnam University, Gyeongsan, Republic of Korea
| | - Robert J. Lee
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH, USA
| | - Yumeng Wei
- Key Laboratory of Medical Electrophysiology, Ministry of Education, School of Pharmacy of Southwest Medical University, Luzhou, PR China
- Central Nervous System Drug Key Laboratory of Sichuan Province, Southwest Medical University, Luzhou, PR China
| | - Ling Zhao
- Luzhou Key Laboratory of Traditional Chinese Medicine for Chronic Diseases Jointly Built by Sichuan and Chongqing, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, PR China
- Central Nervous System Drug Key Laboratory of Sichuan Province, Southwest Medical University, Luzhou, PR China
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Solvent-Free Fabrication of Biphasic Lipid-Based Microparticles with Tunable Structure. Pharmaceutics 2021; 14:pharmaceutics14010054. [PMID: 35056953 PMCID: PMC8780016 DOI: 10.3390/pharmaceutics14010054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/21/2021] [Accepted: 12/23/2021] [Indexed: 12/01/2022] Open
Abstract
Lipid-based biphasic microparticles are generally produced by long and complex techniques based on double emulsions. In this study, spray congealing was used as a solvent-free fabrication method with improved processability to transform water-in-oil non-aqueous emulsions into spherical solid lipid-based particles with a biphasic structure (b-MPs). Emulsions were prepared by melt emulsification using different compositions of lipids (Dynasan®118 and Compritol®888 ATO), surfactants (Cetylstearyl alcohol and Span®60) and hydrophilic carriers (PEGs, Gelucire®48/16 and Poloxamer 188). First, pseudo-ternary phase diagrams were constructed to identify the area corresponding to each emulsion type (coarse emulsion or microemulsion). The hydrophobicity of the lipid mostly affected the interfacial tension, and thus the microstructure of the emulsion. Emulsions were then processed by spray congealing and the obtained b-MPs were characterized in terms of thermal and chemical properties (by DSC and FT-IR), external and internal morphology (by SEM, CLSM and Raman mapping). Solid free-flowing spherical particles (main size range 200–355 µm) with different architectures were successfully produced: microemulsions led to the formation of particles with a homogeneous internal structure, while coarse emulsions generated “multicores-shell” particles consisting of variable size hydrophilic cores evenly distributed within the crystalline lipid phase. Depending on their composition and structure, b-MPs could achieve various release profiles, representing a more versatile system than microparticles based on a single lipid phase. The formulation and technological strategy proposed, provides a feasible and cost-effective way of fabricating b-MPs with tunable internal structure and release behavior.
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