Bioactive Polymers: In Vitro and In Vivo Study of Controlled Release Neomycin

2021 ◽  
pp. 72-81
Author(s):  
Severian Dumitriu ◽  
Maria Dumitriu ◽  
Stefan M. Dimitriu ◽  
Tatiana Turcu ◽  
Lucia Grigore ◽  
...  
Keyword(s):  
Controlled Release ◽  
In Vivo Study ◽  
Bioactive Polymers

Bioactive Polymers: In Vitro and In Vivo Study of Controlled Release Neomycin

1992 ◽  
Vol 6 (3) ◽  
pp. 251-260 ◽  
Author(s):  
Severian Dumitriu ◽  
Maria Dumitriu ◽  
Stefan M. Dimitriu ◽  
Tatiana Turcu ◽  
Lucia Grigore ◽  
...  
Keyword(s):  
Controlled Release ◽  
In Vivo Study ◽  
Bioactive Polymers

scholarly journals Formulation and evaluation of controlled-release of telmisartan microspheres: In vitro/in vivo study

2014 ◽  
Vol 22 (4) ◽  
pp. 542-548 ◽  
Author(s):  
Praveen Kumar Gaur ◽  
Shikha Mishra ◽  
Meenakshi Bajpai
Keyword(s):  
Controlled Release ◽  
In Vivo Study

Formulation and Evaluation of Atorvastatin Calcium-Poly-ε-Caprolactone Nanoparticles Loaded Ocular Inserts for Sustained Release and Antiinflammatory Efficacy

2020 ◽  
Vol 21 (15) ◽  
pp. 1688-1698
Author(s):  
Germeen N.S. Girgis
Keyword(s):  
Sustained Release ◽  
In Vitro Release ◽  
Pluronic F127 ◽  
In Vivo Study ◽  
Average Weight ◽  
Drug Release Profile ◽  
Atorvastatin Calcium ◽  
Anti Inflammatory

Purpose: The work was performed to investigate the feasibility of preparing ocular inserts loaded with Poly-ε-Caprolactone (PCL) nanoparticles as a sustained ocular delivery system. Methods: First, Atorvastatin Calcium-Poly-ε-Caprolactone (ATC-PCL) nanoparticles were prepared and characterized. Then, the optimized nanoparticles were loaded within inserts formulated with Methylcellulose (MC) and Polyvinyl Alcohol (PVA) by a solvent casting technique and evaluated physically, for in-vitro drug release profile. Finally, an in-vivo study was performed on the selected formulation to prove non-irritability and sustained ocular anti-inflammatory efficacy compared with free drug-loaded ocuserts. Results: The results revealed (ATC-PCL) nanoparticles prepared with 0.5% pluronic F127 were optimized with 181.72±3.6 nm particle size, 0.12±0.02 (PDI) analysis, -27.4± 0.69 mV zeta potential and 62.41%±4.7% entrapment efficiency. Nanoparticles loaded ocuserts manifested compatibility between drug and formulation polymers. Moreover, formulations complied with average weight 0.055±0.002 to 0.143±0.023 mg, and accepted pH. ATC-PCL nanoparticles loaded inserts prepared by 5% MC showed more sustained, prolonged in-vitro release over 24h. In-vivo study emphasized non-irritability, ocular anti-inflammatory effectiveness represented by smaller lid closure scores, and statistically significant lowering in PMN count after 3h. Conclusion: These findings proposed a possibly simple, new and affordable price technique to prepare promising (ATC-PCL) nanoparticles loaded inserts to achieve sustained release with prolonged antiinflammatory efficacy.

Quercetin improve ischemia/reperfusion‐induced cardiomyocyte apoptosis in vitro and in vivo study via SIRT1/PGC‐1α signaling

2019 ◽  
Vol 120 (6) ◽  
pp. 9747-9757 ◽  
Author(s):  
Jiayou Tang ◽  
Linhe Lu ◽  
Yang Liu ◽  
Jipeng Ma ◽  
Lifang Yang ◽  
...  
Keyword(s):  
Ischemia Reperfusion ◽  
Cardiomyocyte Apoptosis ◽  
In Vivo Study
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