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1.
Molecules ; 29(1)2023 Dec 23.
Artigo em Inglês | MEDLINE | ID: mdl-38202691

RESUMO

Centipeda minima is a traditional Chinese medicine with wide applications and diverse pharmacological effects. Scholars have conducted extensive studies on its relevant clinical applications, especially its remarkable efficacy in cancer treatment. This paper thoroughly investigates the chemical composition and identification, pharmacological effects, and toxicity, along with the safety of Centipeda minima, so as to lay the foundation for corresponding clinical applications and product development. Furthermore, as global scholars have conducted extensive research on such clinical applications and made significant progress, the future development and utilization of Centipeda minima's active ingredients to create novel drugs are of great clinical significance.


Assuntos
Asteraceae , Medicina Tradicional Chinesa
2.
Can J Physiol Pharmacol ; 94(4): 433-40, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26863576

RESUMO

Alatamine is a constituent in the extract of a traditional herbal medicine Ramulus euonymi widely used for cardiac protection. However, its precise effects remain unclear. In the present study, we found that alatamine was able to reduce acute myocardial ischemia (AMI)-induced cardiac dysfunction in a rat model, as reflected by significantly restored electrocardiograms, M-mode echocardiograms, and left ventricular hemodynamics. Also, Nagar Olsen staining revealed that alatamine markedly reduced AMI-induced cardiac injury and cardiac myocyte apoptosis. TUNEL and caspase-3 activity assay showed that cardiac myocytes underwent significant apoptosis during AMI, and levels of LDH and CK-MB increased in the serum. However, such changes were significantly inhibited by pre-administration of alatamine. Furthermore, such anti-apoptotic effects of alatamine was also confirmed in a cardiac myocyte model of isoproterenol (ISO)-induced damage. Mechanistically, it was also found that alatamine improved the expression and activity of sarcoplasmic/endoplasmic reticulum Ca(2+) ATPase (SERCA), which were inhibited during AMI, promoting contractility and relaxation. Meanwhile, alatamine decreased Bax and increased Bcl-2 expressions both in vivo and in vitro, therefore inhibiting cardiac myocyte apoptosis and preventing cardiac dysfunction caused by AMI at the cellular level. The present study revealed the beneficial role of alatamine in cardiac protection and highlighted it as a potential therapeutic reagent for reduction of AMI-induced cardiac injury.


Assuntos
Emodina/análogos & derivados , Ventrículos do Coração/efeitos dos fármacos , Isquemia Miocárdica/tratamento farmacológico , Traumatismo por Reperfusão Miocárdica/tratamento farmacológico , Miócitos Cardíacos/efeitos dos fármacos , Substâncias Protetoras/farmacologia , Animais , Apoptose/efeitos dos fármacos , Caspase 3/metabolismo , Creatina Quinase Forma MB/metabolismo , Emodina/farmacologia , Ventrículos do Coração/metabolismo , Isoproterenol/farmacologia , Masculino , Isquemia Miocárdica/metabolismo , Traumatismo por Reperfusão Miocárdica/metabolismo , Miocárdio/metabolismo , Miócitos Cardíacos/metabolismo , Ratos , Ratos Wistar , ATPases Transportadoras de Cálcio do Retículo Sarcoplasmático/metabolismo
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