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[Renal markers and predictors, and renal and cardiovascular risk factors].

An important task of the nephrologists during the last century, it has been the search of elements and means that allow us, with the adequate precision, to correlate the functional deterioration of the kidney, and the patient's clinical reality. And the continuous searching of factors and markers that injure them, the prognosis, and early diagnosis, to be able to predict the degree of the organs and patient's survival. Almost parallel survival presage in the natural history of the illness, almost one century ago. In the second half of the XX century, in the developed countries, appear modifications of the social, cultural, and sanitary conditions, that make appear some very different partner-sanitary and epidemic circumstances, and take place like they are, among others: 1. An increase of per cápita private rents, what takes place to increase of the level of social life and the population's health. With increment of the longevity, and smaller incidence and prevalence of classic process, as malnutrition, infections, infantile mortality, so increasing the weight of the cardiovascular diseases and death. This is potentiated for the increment and the incidence of environmental cardiovascular risk's factors (like high caloric and fatty-rich diets, smoke, alcohol, disappearance of the physical work, inactivity, etc). And that situations are also product of the change of the outline of human and social values and guides. 2. Access of the whole population to a sanitary attention of more quality and effectiveness. It allows the biggest survival of patients that suffer vascular crisis, (as angina, miocardial infarction or cerebrovascular accident), that few years ago they have had a higher morbimortality and an inferior survival (2). 3. The execution of big epidemic studies has been able to, not only characterize and test with scientific evidence to numerous factors and markers, that induce renal and cardiovascular prejudicial changes, but risk and death probability prediction. And also, its possible association nexuses, its injuring mechanisms, and the characterization of the new "emergent" renal and cardiovascular risk's markers and factors. 4. The impact on the possibility to treat the end stage renal disease with effective and prolonged procedures, by hemodialisis or kidney transplantation, has been occurred. The affected population's survival with the adequacy renal-sustitution treatment, and the possibility of indefinite duration of its treatment, has also impacted on the public health, and its resources, in an evident way. Simultaneously to increase of the incidence in the population, the electivity for the treatment has been enlarged and extended increasing it exponentially. These facts are documented here, and are defined the characteristics of the factors and markers of risk, of renal and cardiovascular diseases. The defined factors are valued to mark, so far as with the well-known evidence is possible, the prediction and the progression of the renal and cardiovascular functional deterioration: The hypertension, cardiovascular remodeling, the arterial stiffness, the heart rate, the sympathetic activation, the modification of the physiological response of the target organ to the overcharge, the metabolic syndrome, the obesity, the insulin resistance, the altered lipid profile, and metabolism of the fatty acids, the salt-sensibility, the decrease of the renal functional reserve, the glomerular hyperfiltration, the absence of the arterial pressure nocturnal descent, the abnormal excretion of proteins for the urine, the phenomenon induced by dysfunctions of the clotting, superoxide production, growth factors, the production of chronic inflammation and its markers, the factors of the glomerulosclerosis progression, the hyperuricemic status, the endothelial dysfunction and others, are evaluated. As well as their association among them and with other factors of risk not changeable like the age, and in turn, with other acquired voluntarily factors of risk, as the smoking habit and the alcohol. These facts are now impacting on the population's sanity. And also in the professional nephrologic exercise, so much for the cardiovascular and renal morbimortality increased, as for the increase of the incidence of end-stage renal disease susceptible to treat with of substitutive procedures. They try to justify the sentence of Alan Weder of the heading, and other concepts like "epidemic factors of the XXI century", and intuitive expressions like "predialitic endothelial disruption or ruin".