Development and evaluation of olanzapine-loaded PLGA nanoparticles for nose-to-brain delivery: In vitro and in vivo studies

2011 ◽  
Vol 7 (12) ◽  
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A. Kumar ◽  
K.K. Sawant
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Akram Hasanpour ◽  
Fariba Esmaeili ◽  
Hossein Hosseini ◽  
Amir Amani

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Numan Taspinar ◽  
Muhammed Sait Ertugrul ◽  
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2019 ◽  
Vol Volume 14 ◽  
pp. 5477-5490 ◽  
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Maryam Dibaei ◽  
Mohammad-Reza Rouini ◽  
Behjat Sheikholeslami ◽  
Mahdi Gholami ◽  
Rassoul Dinarvand

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Vol 7 (1) ◽  
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Amit Gupta ◽  
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Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3495
Author(s):  
Adriana Trapani ◽  
Filomena Corbo ◽  
Gennaro Agrimi ◽  
Nicoletta Ditaranto ◽  
Nicola Cioffi ◽  
...  

Background: The blood–brain barrier (BBB) bypass of dopamine (DA) is still a challenge for supplying it to the neurons of Substantia Nigra mainly affected by Parkinson disease. DA prodrugs have been studied to cross the BBB, overcoming the limitations of DA hydrophilicity. Therefore, the aim of this work is the synthesis and preliminary characterization of an oxidized alginate-dopamine (AlgOX-DA) conjugate conceived for DA nose-to-brain delivery. Methods: A Schiff base was designed to connect oxidized polymeric backbone to DA and both AlgOX and AlgOX-DA were characterized in terms of Raman, XPS, FT-IR, and 1H- NMR spectroscopies, as well as in vitro mucoadhesive and release tests. Results: Data demonstrated that AlgOX-DA was the most mucoadhesive material among the tested ones and it released the neurotransmitter in simulated nasal fluid and in low amounts in phosphate buffer saline. Results also demonstrated the capability of scanning near-field optical microscopy to study the structural and fluorescence properties of AlgOX, fluorescently labeled with fluorescein isothiocyanate microstructures. Interestingly, in SH-SY5Y neuroblastoma cell line up to 100 μg/mL, no toxic effect was derived from AlgOX and AlgOX-DA in 24 h. Conclusions: Overall, the in vitro performances of AlgOX and AlgOX-DA conjugates seem to encourage further ex vivo and in vivo studies in view of nose-to-brain administration.


Author(s):  
Nadia Fattahi ◽  
Ali Ramazani ◽  
Mehrdad Hamidi ◽  
Maliheh Parsa ◽  
Kobra Rostamizadeh ◽  
...  

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