Revista médica de Chile
-
Revista médica de Chile · Jun 1997
Comparative Study[Immune response reduced by intense intellectual stress: changes in lymphocyte proliferation in medical students].
There is a relationship between stressful situations and the susceptibility towards certain diseases, probably mediated by immune system modifications. ⋯ There is a decrease in lymphocyte proliferation and an increase in cortisol levels during a period of acute academic stress in medical students, suggesting that, the exposure of the healthy subjects to common stressful stimuli, may affect their immunocompetance.
-
Revista médica de Chile · Jun 1997
Randomized Controlled Trial Comparative Study Clinical Trial[Effects of ramipril and spironolactone on ventricular remodeling after acute myocardial infarction: randomized and double-blind study].
Studies have shown that angiotensin converting enzyme (ACE) inhibition prevents left ventricular remodeling and cardiovascular events after an acute myocardial infarction. The role of aldosterone in ventricular remodeling after a myocardial infarction has not been addressed. ⋯ Ramipril and spironolactone had similar effects on ventricular remodeling after acute myocardial infarction, suggesting that aldosterone contributes to this phenomenon and that inhibition of its receptor may be as effective as ACE inhibition in its prevention.
-
Revista médica de Chile · Jun 1997
Comparative Study[Epidemiological transition in Latin America: a comparison of four countries].
In the last decade, Latin America has experienced important transformations in its health conditions, due to demographic changes and a rapid urbanization process. ⋯ An increment in non communicable diseases is expected for the next decades in Latin America. Analysis of demographic and epidemiological transition is crucial to define health policies and to adequate health systems to the new situations.