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1.
Polymers (Basel) ; 15(21)2023 Nov 03.
Artigo em Inglês | MEDLINE | ID: mdl-37959997

RESUMO

Natural cyclodextrins (CDs) can be formed by 6, 7, or 8 glucose molecules (α-, ß-, and γ-, respectively) linked in a ring, creating a cone shape. Its interior has an affinity for hydrophobic molecules, while the exterior is hydrophilic and can interact with water molecules. This feature has been used to develop active packaging applied to food, interacting with the product or its environment to improve one or more aspects of its quality or safety. It also provides monitoring information when food is optimal for consumption, as intelligent packaging is essential for the consumer and the merchant. Therefore, this review will focus on discerning which packaging is most appropriate for each situation, solubility and toxicological considerations, characterization techniques, effect on the guest properties, and other aspects related to forming the inclusion complex with bioactive molecules applied to packaging.

2.
Molecules ; 26(6)2021 Mar 12.
Artigo em Inglês | MEDLINE | ID: mdl-33809398

RESUMO

Spondias mombin L. (Anacardiaceae) has a worldwide distribution and is present in all regions of Brazil. Its leaves, flowers and bark are used as teas in folk medicine to treat diseases of the digestive system. This study aimed to evaluate the acute non-clinical toxicity, gastroprotective activity, and the related mechanisms of action of nebulized extract and tablets based on dried Spondias mombin (SmNE). SmNE screening showed the presence of flavonoids (0.65%), polyphenols (25.50%), where the major compound is gallic acid. In the acute oral toxicity assay, a dose of 2000 mg/kg of SmNE administered orally in Swiss mice did not induce any behavioral changes. SmNE (250 or 500 mg/kg p.o) significantly reduced the ulcerative lesion area when compared to the control group in ethanol and non-steroidal anti-inflammatory drug (NSAIDs) models. Results showed that treatment with SmNE (250 mg/kg) reduced acid secretion and gastric content, accompanied with an increase in pH. Previous administration of indomethacin and glibenclamide reversed the protection provided by SmNE, confirming the participation of prostaglandins (PGs) and ATP-sensitive potassium channels (KATP) in its gastroprotective effect. The SmNE tablets met the pharmacopeial quality requirements with gastroprotective activity and similar protection in comparison to the isolated extract administrated. In conclusion, SmNe has a gastroprotective activity related to cytoprotective mechanisms, such as the participation of endogenous prostaglandins and KATP channels, having an anti-secretory effect with systemic action. The formulation obtained presented gastroprotective effects similar to the administration of the extract, the tablets showed favorable compression characteristics by the direct route and met the pharmacopeial quality requirements.


Assuntos
Anacardiaceae/química , Antiulcerosos/administração & dosagem , Fitoterapia , Úlcera Gástrica/prevenção & controle , Animais , Anti-Inflamatórios não Esteroides/toxicidade , Antiulcerosos/química , Antiulcerosos/toxicidade , Modelos Animais de Doenças , Composição de Medicamentos , Etanol/toxicidade , Feminino , Ácido Gástrico/metabolismo , Canais KATP/metabolismo , Masculino , Camundongos , Nebulizadores e Vaporizadores , Compostos Fitoquímicos/administração & dosagem , Compostos Fitoquímicos/química , Compostos Fitoquímicos/toxicidade , Piroxicam/toxicidade , Extratos Vegetais/administração & dosagem , Extratos Vegetais/química , Extratos Vegetais/toxicidade , Plantas Medicinais/química , Prostaglandinas/metabolismo , Úlcera Gástrica/induzido quimicamente , Úlcera Gástrica/metabolismo , Comprimidos
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