| Texto completo | |
| Autor(es): |
Teixeira-Fonseca, Jorge Lucas
;
Belato y Orts, Diego Jose
;
da Silva, Polyana Leal
;
Conceicao, Michael Ramon de Lima
;
Hermes, Hernan
;
Prudencio, Carlos R.
;
Roman-Campos, Danilo
Número total de Autores: 7
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Arquivos Brasileiros de Cardiologia; v. 121, n. 12, p. 11-pg., 2024-01-01. |
| Resumo | |
Background: D-limonene (D-L) is the major monocyclic monoterpene in citrus plants with anti-inflammatory properties. Pulmonary hypertension (PH) can cause right heart dysfunction and increases the risk of death, partially due to inflammatory response in the heart. Objective: To evaluate the possible protective effect of D-L on cardiac function in a rat model of monocrotaline-induced PH (MCT-PH). Methods: Electrocardiogram was monitored in vivo. Masson Trichrome technique was deployed to verify fibrosis in the heart. Contractility function of isolated atrial tissue was studied using organ bath chamber. Real-time quantitative PCR was applied to quantify inflammation in the right ventricle. Results: The MCT-PH group showed electrical and structural heart remodeling, with the presence of fibrosis in the cardiac tissue and in vivo electrocardiographic changes. Treatment with D-L partially prevented the development of tissue fibrosis and the increase in P wave duration in the MCT-PH group. The contraction and relaxation velocity of isolated right and left atrium were accelerated in CTR and MCT-PH animals treated with D-L. Finally, D-L was able to prevent the abnormal expression of the key inflammatory cytokines (interleukin 1-beta, interleukin 6 and tumor necrosis factor-alpha) in the right ventricle of MCT-PH animals. D-L was able to enhance the production of the anti-inflammatory cytokine Interleukin-10. Conclusion: Our results showed that in vivo administration of D-L partially prevented the molecular, structural and functional remodeling of the heart in the MCT-PH model with attenuation of the inflammatory response in the heart. (AU) | |
| Processo FAPESP: | 21/05584-7 - Avaliação da toxicidade aguda e crônica ao coração e ao cérebro expostos a pesticidas encontrados na água potável do Brasil |
| Beneficiário: | Danilo Roman Campos |
| Modalidade de apoio: | Auxílio à Pesquisa - Jovens Pesquisadores - Fase 2 |
| Processo FAPESP: | 22/07256-0 - Papel dos polimorfismos do SCN5A na interação de pesticidas com o Nav1.5 |
| Beneficiário: | Diego Jose Orts y Belato |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 20/14635-1 - Modelagem de doenças monogênicas para estudos fisiopatológicos e testes farmacológicos utilizando células especializadas derivadas de iPSCs |
| Beneficiário: | João Bosco Pesquero |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |