6 research outputs found

    Impact of Diabetes on Postinfarction Heart Failure and Left Ventricular Remodeling

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    Diabetes mellitus, the metabolic syndrome, and the underlying insulin resistance are increasingly associated with diastolic dysfunction and reduced stress tolerance. The poor prognosis associated with heart failure in patients with diabetes after myocardial infarction is likely attributable to many factors, important among which is the metabolic impact from insulin resistance and hyperglycemia on the regulation of microvascular perfusion and energy generation in the cardiac myocyte. This review summarizes epidemiologic, pathophysiologic, diagnostic, and therapeutic data related to diabetes and heart failure in acute myocardial infarction and discusses novel perceptions and strategies that hold promise for the future and deserve further investigation

    Reproduction, Development and Life Cycles

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    In tardigrades reproduction occurs only through eggs, fertilized or unfertilized, and therefore only through gametes. Tardigrades exploit several reproductive modes, amphimixis, self-fertilization and thelytokous parthenogenesis (both apomixis and automixis). These modes are often in close relationship with the colonized environment. As regards sexuality, tardigrades can be gonochoristic (bisexual or unisexual) or hermaphroditic. The anatomy of the reproductive apparatus of males, females and hermaphrodites and the maturative patterns of male and female germinal elements are presented and discussed, as well as the ultrastructure of spermatozoa and eggs, including their phylogenetic implications. In addition, mating and fertilization patterns, embryonic and post-embryonic development, sexual dimorphism and parental care are considered and discussed. Finally, vegetative reproduction does not occur in tardigrades, and their capability to regenerate is limited to a physiological tissue restoration of a few cells

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    Chest pain due to coronary artery disease alters stress neuropeptide levels: Potential implications for clinical assessment

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