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1.
Eur J Pharm Biopharm ; 203: 114459, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39168255

RESUMO

The goal of the current study was to formulate and examine the potential of poly (lactic-co-glycolic acid) (PLGA) as carriers to facilitate the targeted administration of edoxaban tosylate monohydrate (ETM). ETM-PLGA-NPs were effectively formulated using the nanoprecipitation technique. Particle size, drug entrapment percentage, zeta potential, assessment of intestinal absorption, FT-IR, SEM, drug dissolution behavior, and histopathology investigations were used to describe ETM-PLGA-NPs. The produced NPs had a roughly spherical shape with a particle size of 99.85 d.nm, a PDI of 0.478, and a zeta potential of 38.5 mV with a maximum drug entrapment of 82.1 %. FTIR measurements showed that the drug's chemical stability remained intact after preapred into nanoparticles. In vitro drug release behavior followed the Higuchi model and revealed an early burst release of 30 % and persistent drug release of 78 % from optimized NPs for up to 120 hrs. According to in vitro data, a 1:10 ratio of ETM to PLGA provided longer-lasting ETM release and improved encapsulation efficiency. Images captured with an inverted fluorescent microscope exhibited that NPs may both greatly increase the amount of ETM accumulated in the intestinal tract and make it easier for ETM to enter the membrane beneath the cells of the intestines. The study found that using PLGA nanoparticles to encapsulate the ETM resulted in longer circulation duration (aPTT, PT, TT). In vivo investigations found that nanoparticles encapsulated had no negative impact on hematological parameters, lung, liver, or kidney tissues. All things considered, the NPs are a potential delivery method to increase the oral absorption and antithrombotic activity of ETM.


Assuntos
Portadores de Fármacos , Liberação Controlada de Fármacos , Nanopartículas , Tamanho da Partícula , Copolímero de Ácido Poliláctico e Ácido Poliglicólico , Piridinas , Tiazóis , Copolímero de Ácido Poliláctico e Ácido Poliglicólico/química , Nanopartículas/química , Animais , Portadores de Fármacos/química , Tiazóis/farmacocinética , Tiazóis/administração & dosagem , Tiazóis/química , Piridinas/administração & dosagem , Piridinas/farmacocinética , Piridinas/química , Ratos , Masculino , Ácido Láctico/química , Absorção Intestinal/efeitos dos fármacos , Ácido Poliglicólico/química , Sistemas de Liberação de Medicamentos/métodos , Inibidores do Fator Xa/administração & dosagem , Inibidores do Fator Xa/farmacocinética , Ratos Wistar , Distribuição Tecidual
2.
J Drug Target ; 32(9): 1125-1138, 2024 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-38990642

RESUMO

The present research looked for ways to develop shielded nanoparticles (NPs)-drug transporters made of chitosan (CS) to enhance the bioavailability of edoxaban tosylate monohydrate (ETM) for oral administration by examining the correlation among design aspects and data from experiments using response surface methodology (RSM). ETM-loaded CS nanoparticles (ETM-CS-NPs) were developed using the ionic gelation of CS with tripolyphosphate (TPP). Utilising Zeta-sizer and scanning electron microscopy, the ETM-CS-NPs were evaluated for particle size (PS), zeta potential (ZP), surface morphology, polydispersity index (PDI), entrapment efficiency (EE) and drug loading (DL). Drug and polymer interactions in NPs were assessed using Fourier transform infra-red spectroscopy. The response surface approach and Design-Expert software optimised the ETM-CS-NPs. Using RSM, the effects of independent variables such as the amount of CS, the amount of TPP, and the amount of glacial acetic acid on PS, PDI and ZP were analysed. The optimal combination of PS (354.8 nm), PDI (0.509), ZP (43.7 + mV), % EE (70.3 ± 1.3) and % DL (9.1 ± 0.4) has been identified for the optimised ETM-CS-NPs. ETM-CS-NPs' anticoagulant activity was evaluated using activated partial thromboplastin time (aPTT), prothrombin time (PT) and thrombin time (TT) assays. In conclusion, a practical and consistent method has been established, and its application has been proven in vitro, indicating its utility for future studies of the biological distribution of ETM-CS-NPs in vivo for specific antithrombotic treatments.


Assuntos
Quitosana , Nanopartículas , Tamanho da Partícula , Piridinas , Tiazóis , Trombose Venosa , Piridinas/farmacocinética , Piridinas/administração & dosagem , Piridinas/química , Piridinas/farmacologia , Tiazóis/farmacocinética , Tiazóis/administração & dosagem , Tiazóis/química , Nanopartículas/química , Quitosana/química , Trombose Venosa/tratamento farmacológico , Animais , Polifosfatos/química , Humanos , Portadores de Fármacos/química , Inibidores do Fator Xa/farmacocinética , Inibidores do Fator Xa/administração & dosagem , Inibidores do Fator Xa/farmacologia , Inibidores do Fator Xa/química , Coelhos , Administração Oral , Anticoagulantes/administração & dosagem , Anticoagulantes/farmacologia , Anticoagulantes/farmacocinética , Disponibilidade Biológica , Coagulação Sanguínea/efeitos dos fármacos
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