Results: 8

Involvement of HSP90 in ischemic postconditioning-induced cardioprotection by inhibition of the complement system, JNK and inflammation

Acta cir. bras; 35 (1), 2020
Abstract Purpose To investigate whether heat shock protein 90 (HSP90) is involved in complement regulation in ischemic postconditioning (IPC). Methods The left coronary artery of rats underwent 30 min of occlusion, followed by 120 min of reperfusion and treatment with IPC via 3 cycles of 30s reperfus...

Intensive treatment of hyperglycemia in the acute phase of myocardial infarction: the tenuous balance between effectiveness and safety - a systematic review and meta-analysis of randomized clinical trials

SUMMARY INTRODUCTION In acute myocardial infarction (AMI), each 18 mg/dl (1 mmol/L) increment is associated with a 3% increase in mortality rates. All strategies applied for reducing blood glucose to this date, however, have not presented encouraging results. METHODOLOGY We searched the Medline (PubMed...

Propranolol inhibits myocardial infarction-induced brown adipose tissue D2 activation and maintains a low thyroid hormone state in rats

Braz. j. med. biol. res; 52 (10), 2019
Considering the recognized role of thyroid hormones on the cardiovascular system during health and disease, we hypothesized that type 2 deiodinase (D2) activity, the main activation pathway of thyroxine (T4)-to-triiodothyronine (T3), could be an important site to modulate thyroid hormone status, which wo...

Ghrelin improves the fine structure of atrial natriuretic factor (ANF) granules and intercalated disc junctions in experimentally-induced myocardial infarction in rats

Int. j. morphol; 36 (3), 2018
Ghrelin is a novel growth hormone-releasing peptide administered to treat myocardial infarction (MI). However, the underlying mechanism of its protective effects against MI remains unclear. A total of sixty healthy Sprague Dawley male rats were included. The first one is the sham-operated control group w...

Lactate-upregulation of lactate oxidation complex-related genes is blunted in left ventricle of myocardial infarcted rats

Braz. j. med. biol. res; 51 (11), 2018
Lactate modulates the expression of lactate oxidation complex (LOC)-related genes and cardiac blood flow under physiological conditions, but its modulatory role remains to be elucidated regarding pathological cardiac stress. The present study evaluated the effect of lactate on LOC-related genes expressio...

Is Local Nitric Oxide Availability Responsible for Myocardial Salvage after Remote Preconditioning?

Arq. bras. cardiol; 107 (2), 2016
Abstract Background: Remote ischemic preconditioning (RIPC) represents an attractive therapy for myocardial protection, particularly when ischemic events can be anticipated. Although several hypothetic mechanisms have been proposed, no definite molecular pathways have been elucidated. Objective: We eva...

ATP y metabolismo cardiaco: acerca del tratamiento metabólico del infarto agudo del miocardio
ATP and cardiac metbolism: about metabolic treatment of acute cardiac infarction

Rev. sanid. mil; 53 (4), 1999
Investigaciones sobre el ATP han revelado principios fundamentales de biología molecular cuyos descubridores fueron galardonados con el premio Nobel de química en 1997. En este artículo se revisan avances recientes sobre síntesis e hidrólisis del ATP y su relación con el metabolismo cardiaco. La s...

Alteraciones metabólicas en sobrevivientes de infarto miocardico
Metabolic changes in myocardial infarction survivors

Existen múltiples evidencias que establecen la importancia de las lipoproteínas como factores de riesgo en la génesis de la ateroesclerosis. Los estudios epidemiológicos realizados en paises desarrollados han revelado que aproximadamente un tercio de los sobrevivientes de infarto miocárdico menores ...