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This paper reviews the current Mexican debate on communication policies related to the promotion of cultural diversity through television. Using the concepts of source diversity, content diversity and exposure diversity, the paper analyzes communication policies adopted or proposed in Mexico and compares them with current policies in Canada and the US. The paper concludes that current commercial strategies and goals in Mexico do not stimulate cultural diversity in media content. It proposes that Mexico advocate a mixed system of mass media with different mandates and modes of financing. [ABSTRACT FROM AUTHOR]

Cardiovascular disease (CVD) is one of the major causes of morbidity and mortality in the United States, Canada and Mexico. The acute myocardial infarction (Ml) in most patients is the result of coronary disease. It has been reported that traditional risk (actors for CVD such as smoking, obesity, hypercholesterolemia, family history, diabetes mellitus, hypertension and other comorbidities are responsible from 50 to 65%. Other risk factors have been associated with CVD. such as homocysteine, a natural amino acid that depends on vitamin B6, B12 and folates to be metabolized. Recent publications have associated high blood levels of homocysteine with myocardial infarction, stroke, venous thromboembolism and CVD mortality and insufficient levels of folate and vitamin B6. Some studies show that the intake of higher amounts of folates decreases homocysteine blood values and lowers the CVD risk. The present paper is a review of the literature with the objective of highlighting the importance of evaluating homocysteine levels in our population and the importance of these nutrients in lowering the risk for CVD. [ABSTRACT FROM AUTHOR]