Cardioprotective doses of thyroid hormones improve NO bioavailability in erythrocytes and increase HIF-1α expression in the heart of infarcted rats

CONTEXT: Infarction leads to a decrease in NO bioavailability in the erythrocytes. Thyroid hormones (TH) present positive effects after infarction. However, there are no studies evaluating the effects of cardioprotective doses of TH in the erythrocytes after infarction.

OBJECTIVE: This study aimed to evaluate the effects of TH in NO bioavailability and oxidative stress parameters in the erythrocytes of infarcted rats.

MATERIAL AND METHODS: Wistar rats were allocated into the three groups: Sham-operated (SHAM), infarcted (AMI) and infarcted + TH (AMIT). AMIT rats received T4 and T3 for 12 days by gavage. Subsequently, the animals were evaluated by echocardiography and the LV and erythrocytes were collected.

RESULTS: TH improved NO bioavailability and increased catalase activity in the erythrocytes. Besides that, TH increased HIF-1α in the heart.

CONCLUSION: TH seems to be positive for erythrocytes preventing a decrease in NO bioavailability and increasing antioxidant enzymatic defense after infarction.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:128

Enthalten in:

Archives of physiology and biochemistry - 128(2022), 6 vom: 03. Dez., Seite 1516-1523

Sprache:

Englisch

Beteiligte Personen:

de Castro, Alexandre Luz [VerfasserIn]
Fernandes, Rafael Oliveira [VerfasserIn]
Ortiz, Vanessa D [VerfasserIn]
Campos, Cristina [VerfasserIn]
Bonetto, Jéssica H P [VerfasserIn]
Fernandes, Tânia Regina G [VerfasserIn]
Conzatti, Adriana [VerfasserIn]
Siqueira, Rafaela [VerfasserIn]
Tavares, Angela Vicente [VerfasserIn]
Belló-Klein, Adriane [VerfasserIn]
Araujo, Alex Sander da Rosa [VerfasserIn]

Links:

Volltext

Themen:

31C4KY9ESH
Antioxidants
Catalase
EC 1.11.1.6
Journal Article
Nitric Oxide
Nitric oxide
Oxidative stress
Reactive oxygen species
T3
T4
Thyroid Hormones

Anmerkungen:

Date Completed 07.11.2022

Date Revised 07.11.2022

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1080/13813455.2020.1779752

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM311307000