Prevalencia de diabetes mellitus en el ámbito de la atención primaria española y su asociación con factores de riesgo cardiovascular y enfermedades cardiovasculares. Estudio SIMETAP-DM / Prevalence of diabetes mellitus in Spanish primary care setting and its association with cardiovascular risk factors and cardiovascular diseases. SIMETAP-DM study

Introducción: Los objetivos del estudio fueron determinar las tasas de prevalencia brutas y ajustadas por edad y sexo de diabetes mellitus (DM), DM tipo 1 (DM1) y DM tipo 2 (DM2), y comparar la asociación de factores de riesgo cardiovascular, enfermedades cardiovasculares, enfermedad renal crónica y enfermedades metabólicas entre las poblaciones con y sin DM. Métodos: SIMETAP-DM es un estudio observacional transversal realizado en atención primaria, con una muestra aleatoria de base poblacional de 10.579 adultos. Tasa de respuesta: 66%. Los diagnósticos de DM, DM1 y DM2 se basaron en criterios clínicos y bioquímicos y/o en la comprobación de estos diagnósticos en las historias clínicas. Se determinaron las prevalencias brutas y ajustadas por edad y sexo (estandarizadas con la población española). Resultados: Las prevalencias brutas de DM1, DM2 y DM fueron del 0,87% (intervalo de confianza al 95% [IC 95%]: 0,67-1,13), el 14,7% (IC 95%: 13,9-15,6) y el 15,6% (IC 95%: 14,7-16,5), respectivamente. Las prevalencias ajustadas por edad y sexo de DM1, DM2 y DM fueron del 1,0% (1,3% para hombres y 0,7% para mujeres), el 11,5% (13,6% para hombres y 9,7% para mujeres) y el 12,5% (14,9% para hombres y 10,5% para mujeres), respectivamente. La prevalencia de DM en la población ≥ 70 años era el doble (30,3% [IC 95%: 28,0-32,7]) que en la población entre 40 y 69 años (15,3% [IC 95%: 14,1-16,5%]). La hipertensión arterial, la enfermedad arterial periférica, el índice cintura-talla aumentado, la albuminuria, la enfermedad coronaria, la dislipidemia aterogénica y la hipercolesterolemia se asociaban con la DM. Conclusiones: En el ámbito de la atención primaria española, las prevalencias ajustadas por edad de DM1, DM2 y DM en la población adulta fueron del 1,0, el 11,5 y el 12,5%, respectivamente. Un tercio de la población mayor de 70 años padecía DM

Introduction: The aims of this study were to determine the age- and sex-adjusted prevalence rates of DM, type-1 DM (T1DM), and type-2 DM (T2DM), and to compare the relationship with cardiovascular risk factors, cardiovascular diseases, chronic kidney disease, and metabolic diseases between populations with and without DM. Methods: SIMETAP-DM is a cross-sectional observational study conducted in a Primary Care setting with a random population-based sample of 10,579 adults. Response rate: 66%. The diagnoses of DM, T1DM and T2DM were based on clinical and biochemical criteria and/or the checking of these diagnoses in the medical records. The crude and age- and sex-adjusted (standardised for Spanish population) prevalence rates were calculated. Results: The crude prevalence rates of T1DM, T2DM, and DM were 0.87% (95% confidence interval [95% CI]: 0.67-1.13), 14.7% (95% CI: 13.9-15.6), and 15.6% (95% CI: 14.7-16.5), respectively. The age- and sex-adjusted prevalence rates of T1DM, T2DM, and DM were 1.0% (1.3% for men and 0.7% for women), 11.5% (13.6% for men and 9.7% for women), and 12.5% (14.9% for men and 10.5% for women), respectively. The prevalence of DM in the population ≥ 70 years was double (30.3% [95% CI: 28.0-32.7]) that of the population between 40 and 69 years (15.3% [95% CI: 14.1-16.5]). Hypertension, peripheral arterial disease, increased waist-to-height ratio, albuminuria, coronary heart disease, atherogenic dyslipidaemia and hypercholesterolaemia were associated with DM. Conclusions: In a Spanish primary care setting, the age-adjusted prevalences of T1DM, T2DM and DM in the adult population were 1.0, 11.5, and 12.5%, respectively. One-third (33%) of the population over 70 years had DM

Prevalence of diabetes mellitus in Spanish primary care setting and its association with cardiovascular risk factors and cardiovascular diseases. SIMETAP-DM study. / Prevalencia de diabetes mellitus en el ámbito de la atención primaria española y su asociación con factores de riesgo cardiovascular y enfermedades cardiovasculares. Estudio SIMETAP-DM.

INTRODUCTION: The aims of this study were to determine the age- and sex-adjusted prevalence rates of DM, type-1 DM (T1DM), and type-2 DM (T2DM), and to compare the relationship with cardiovascular risk factors, cardiovascular diseases, chronic kidney disease, and metabolic diseases between populations with and without DM. METHODS: SIMETAP-DM is a cross-sectional observational study conducted in a Primary Care setting with a random population-based sample of 10,579 adults. Response rate: 66%. The diagnoses of DM, T1DM and T2DM were based on clinical and biochemical criteria and/or the checking of these diagnoses in the medical records. The crude and age- and sex-adjusted (standardised for Spanish population) prevalence rates were calculated. RESULTS: The crude prevalence rates of T1DM, T2DM, and DM were 0.87% (95% confidence interval [95% CI]: 0.67-1.13), 14.7% (95% CI: 13.9-15.6), and 15.6% (95% CI: 14.7-16.5), respectively. The age- and sex-adjusted prevalence rates of T1DM, T2DM, and DM were 1.0% (1.3% for men and 0.7% for women), 11.5% (13.6% for men and 9.7% for women), and 12.5% (14.9% for men and 10.5% for women), respectively. The prevalence of DM in the population≥70 years was double (30.3% [95% CI: 28.0-32.7]) that of the population between 40 and 69 years (15.3% [95% CI: 14.1-16.5]). Hypertension, peripheral arterial disease, increased waist-to-height ratio, albuminuria, coronary heart disease, atherogenic dyslipidaemia and hypercholesterolaemia were associated with DM. CONCLUSIONS: In a Spanish primary care setting, the age-adjusted prevalences of T1DM, T2DM and DM in the adult population were 1.0, 11.5, and 12.5%, respectively. One-third (33%) of the population over 70 years had DM.

NMDA receptor-dependent plasticity in the nucleus accumbens connects reward-predictive cues to approach responses.

Learning associations between environmental cues and rewards is a fundamental adaptive function. Via such learning, reward-predictive cues come to activate approach to locations where reward is available. The nucleus accumbens (NAc) is essential for cued approach behavior in trained subjects, and cue-evoked excitations in NAc neurons are critical for the expression of this behavior. Excitatory synapses within the NAc undergo synaptic plasticity that presumably contributes to cued approach acquisition, but a direct link between synaptic plasticity within the NAc and the development of cue-evoked neural activity during learning has not been established. Here we show that, with repeated cue-reward pairings, cue-evoked excitations in the NAc emerge and grow in the trials prior to the detectable expression of cued approach behavior. We demonstrate that the growth of these signals requires NMDA receptor-dependent plasticity within the NAc, revealing a neural mechanism by which the NAc participates in learning of conditioned reward-seeking behaviors.

Liquid phase micro-extraction of linear alkylbenzene sulfonate anionic surfactants in aqueous samples.

Hollow fiber liquid phase micro-extraction (LPME) of linear alkylbenzene sulfonates (LAS) from aqueous samples was studied. Ion pair extraction of C10, C11, C12 and C13 homologues was facilitated with trihexylamine as ion-pairing agent, using di-n-hexylether as solvent for the supported liquid membrane (SLM). Effects of extraction time, acceptor buffer concentration, stirring speed, sample volume, NaCl and humic acids were studied. At 10-50 µg L-1 linear R2-coefficients were 0.99 for C10 and C11 and 0.96 for C12. RSD was typically ~15%. Three observations were especially made. Firstly, LPME for these analytes was unusually slow with maximum enrichment observed after 15-24 h (depending on sample volume). Secondly, the enrichment depended on LAS sample concentration with 35-150 times enrichment below ~150 µg L-1 and 1850-4400 times enrichment at 1 mg L-1. Thirdly, lower homologues were enriched more than higher homologues at low sample concentrations, with reversed conditions at higher concentrations. These observations may be due to the fact that LAS and the amine counter ion themselves influence the mass transfer at the water-SLM interface. The observations on LPME of LAS may aid in LPME application to other compounds with surfactant properties or in surfactant enhanced membrane extraction of other compounds.

Etiology of sporadic cases of pediatric acute gastroenteritis in asturias, Spain, and genotyping and characterization of norovirus strains involved.

From November 2000 to October 2001, a reverse transcription-PCR using primers directed to the norovirus RNA polymerase coding region was included in a viral and bacterial routine screening to diagnose sporadic cases of acute gastroenteritis among children in Asturias, Spain. The role of noroviruses (8.6% of the positively diagnosed cases) as the cause of sporadic pediatric gastroenteritis was evaluated with respect to the detection rates of other gastroenteritis-associated viruses and bacteria. The results indicated that noroviruses were less common than rotaviruses (36.9%), Campylobacter spp. (28.8%), and Salmonella spp. (18.4%) but more frequent than astroviruses (4.3%), adenoviruses (3.8%), and Yersinia spp. (2.2%). Mixed infections involving noroviruses were rarely observed (0.5%). The presence of a norovirus-associated pediatric gastroenteritis peak in summer, as well as the complete absence of norovirus-associated cases in colder months, challenges the view that norovirus infections exclusively have wintertime seasonality. On the other hand, phylogenetic analysis of the amplified fragments showed that the norovirus strains responsible were closely related. A further study using the full-length capsid region showed that these strains could be included into genogroup II, Bristol/Lorsdale cluster, and were closely related to the 1995 and 1996 U.S. subset of strains associated with outbreaks recorded worldwide between 1995 and 1996.