Alfonso M. Ramos

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Renal Electrolyte Division,1 University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania; Albany College of Pharmacy,2 Albany, New York, USA; Hans Mak Institute,3 Naarden, The Netherlands; Sanjay Gandhi Postgraduate Institute of Medical Sciences,4 Lucknow, India; Renal Division,5 Baxter Healthcare Corporation, McGaw Park, Illinois, USA; Department(More)
Small-solute clearance targets for peritoneal dialysis (PD) have been based on the tacit assumption that peritoneal and renal clearances are equivalent and therefore additive. Although several studies have established that patient survival is directly correlated with renal clearances, there have been no randomized, controlled, interventional trials(More)
BACKGROUND N-terminal fragment of B-type natriuretic peptide (NT-proBNP) is a marker of both fluid volume overload and myocardial damage, and it has been useful as a predictor of mortality in patients with end-stage renal disease (ESRD). It has been suggested that continuous ambulatory peritoneal dialysis (CAPD), automated peritoneal dialysis (APD) and(More)
Polyhydroxyalkanoates (PHAs) are biodegradable bioplastics formed from renewable resources, like sugars, with similar characteristics of polypropylene. These bioplastics are industrially produced by pure cultures using expensive pure substrates. These factors lead to a much higher selling price of PHAs compared to petroleum-based plastics, like(More)
The increasing rates in incidence and prevalence of chronic kidney disease (CKD) are important challenges for health systems around the world, and are even more significant for undeveloped countries. In Mexico the prevalence of CKD seems to be similar to that in highly developed nations, with diabetes as the leading cause of CKD; however, human and economic(More)
Extraction parameters (temperature, pH, duration) and alkaline pre-treatment duration have been systematically varied in the aim of exploring their impact on both chemical structure and gelling properties of carrageenan biopolymers obtained from Mastocarpus stellatus seaweeds, collected on the Northern coast of Portugal. Increasing the alkaline(More)
Latin America is a heterogeneous region comprised of 20 countries, former colonies of European countries, in which Latin-derived languages are spoken. According to the Latin American Society of Nephrology and Hypertension/Sociedad Latino Americana de Nefrologia e Hipertensión (SLANH), the acceptance rate for renal replacement therapy is 103 new patients per(More)
NMR spectroscopy was applied for quantitative and qualitative characterization of the chemical composition and microstructure of a series of poly(3-hydroxybutyrate-co-3-hydoxyvalerate) copolymers, P(3HB-co-3HV), synthesized by mixed microbial cultures at several different feeding strategies. The monomer sequence distribution of the bacterially synthesized(More)
BACKGROUND AND OBJECTIVES Natriuretic peptides have been suggested to be of value in risk stratification in dialysis patients. Data in patients on peritoneal dialysis remain limited. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS Patients of the ADEMEX trial (ADEquacy of peritoneal dialysis in MEXico) were randomized to a control group [standard 4 x 2L(More)