A western route of prehistoric human migration from Africa into the Iberian Peninsula.

Being at the western fringe of Europe, Iberia had a peculiar prehistory and a complex pattern of Neolithization. A few studies, all based on modern populations, reported the presence of DNA of likely African origin in this region, generally concluding it was the result of recent gene flow, probably during the Islamic period. Here, we provide evidence of much older gene flow from Africa to Iberia by sequencing whole genomes from four human remains from northern Portugal and southern Spain dated around 4000 years BP (from the Middle Neolithic to the Bronze Age). We found one of them to carry an unequivocal sub-Saharan mitogenome of most probably West or West-Central African origin, to our knowledge never reported before in prehistoric remains outside Africa. Our analyses of ancient nuclear genomes show small but significant levels of sub-Saharan African affinity in several ancient Iberian samples, which indicates that what we detected was not an occasional individual phenomenon, but an admixture event recognizable at the population level. We interpret this result as evidence of an early migration process from Africa into the Iberian Peninsula through a western route, possibly across the Strait of Gibraltar.

[Early detection or screening in the prevention of prostate cancer?] / ¿Detección precoz o cribado en la prevención del cáncer de próstata?

Prostate cancer (PC) is the most common malignancy in men in the developed world and the second leading cause of cancer death in men in the USA, behind lung cancer. In Europe, it is the third leading cause of cancer death in men (after lung and colorectal cancers). The role of PC screening is currently being questioned. The following article summarises the most relevant epidemiological aspects of PC, as well as major clinical trials of PC screening, and recommendations of the various medical scientific associations on whether or not to screen for PC.

Vigilancia por laboratorio de las enfermedades crónicas: una estrategia para las enfermedades metabólicas / Chronic disease surveillance by laboratory: a strategy for metabolic diseases

Objetivo. Proponer una estrategia para la vigilancia por laboratorio de las enfermedades crónicas no transmisibles (ECNT), bajo la hipótesis de que los resultados de laboratorio de los analitos metabólicos se pueden distribuir en dos poblaciones con medias diferentes. Métodos. Estudio analítico, retrospectivo, con resultados de tamiz metabólico en 5241 recién nacidos, en los años 2014 y 2015, en cuatro hospitales, uno en Pereira, uno en Popayán, uno en Barranquilla y uno en Neiva, mediante Espectrometría de masas en Tándem, en un sistema TQD-Waters, kit Neobase™ para determinación de moléculas pequeñas en sangre. Por z-score se seleccionaron valores altos para construir la muestra anormal y los restantes datos constituyen la muestra normal. Se compararon las medias de las dos poblaciones para cada analito, con la prueba t, (p<0.05). Resultados. Las 5241 muestras se analizaron para 44 moléculas de aminoácidos y acilcarnitinas de ácidos orgánicos. Para cada analito se observaron del 3% al 5% de valores altos (z-score>3). Las medias de las dos poblaciones, anormal y normal, difieren a un nivel significativo (p<0.05). Discusión. Los estudios regionales con modelos planteados a nivel mundial para la vigilancia de ECNT, consideran factores socio-demográficos, somatometría y nutrición. El laboratorio clínico es una fuente de información, mediante el monitoreo de indicadores metabólicos. Se demostró que los resultados de análisis de una molécula se pueden agrupar y distribuir según una población anormal cuya media es un indicador objetivo. Conclusiones. Es posible utilizar los datos de laboratorio para monitoria de la variación de un analito, con el fin de aplicarlo para la vigilancia en salud pública de las ECNT.

Objective. propose a strategy for the surveillance by laboratory of chronical and not communicable diseases (CNCD), under the hypothesis that laboratory results for metabolic analytes can be distributed in two populations with different averages. Methods. analytical and retrospective study, with results for metabolic screening for 5241 newborns, collected during the years 2014 and 2015, in four hospitals from Barranquilla, Pereira, Popayan and Neiva by Mass Tandem Spectrometry in a Triple Quadrupole (TQD) system, with the Neobase™ kit for determination of small molecules in blood. Results. 5241 samples were analyzed for 44 acylcarnitines for amino acids and organic acids. For each analyte there was 3 to 5% high values (z-score > 3). The averages for both populations, normal and abnormal, differ to a significant level (p < 0.05). Discussion. Regional studies with models raised globally for the surveillance of CNCD, consider socio-demographic, somatometric and nutrition factors. The clinical laboratory is a source of information, through the monitoring of metabolic indicators. Demonstrated that the results of analysis of a molecule can be grouped and distributed according to an abnormal population whose average is an objective indicator. Conclusions. It is possible to use data from laboratory to monitor variation of an analyte, in order to apply it to the CNCD public health surveillance.

[Relationship between lower urinary tract symptoms in men and erectile dysfunction]. / Relación entre los síntomas del tracto urinario inferior en el varón y la disfunción eréctil.

The relationship between lower urinary tract symptoms (LUTS) and erectile dysfunction (ED) is the result of their greater association in advanced age. Nevertheless, several investigations show that urinary tract symptoms have an independent relationship with sexual dysfunction and lower satisfaction. Likewise, the severity of LUTS correlates with the magnitude of sexual dysfunction, which suggests a possible causal relationship. The combined therapeutic approach of these 2 entities (ED and LUTS) brings a benefit to the patient both in urinary symptoms and sexual sphere. This review focuses on the relationship between ED, LUTS due to benign prostatic hyperplasia, and related therapies.

[Update on the medical treatment of lower urinary tract symptoms (LUTS) in men]. / Actualización en el tratamiento médico de los síntomas del tracto urinario inferior en el varón.

Lower urinary tract symptoms (LUTS) are a frequent cause of consultation in Primary Care, especially in men >40 years of age. Benign prostatic hyperplasia (BPH) has been recognized as the most common cause of bothersome LUTS, causing significant interference with everyday activities and quality of life. The purpose of this study is to provide an update on recent developments regarding the medical management of male LUTS.

[Consensus document on the management and follow-up of the male with lower urinary tract symptoms secondary to benign prostate hyperplasia]. / Documento de consenso sobre pautas de actuación y seguimiento del varón con síntomas del tracto urinario inferior secundarios a hiperplasia prostática benigna.

Benign prostate hyperplasia (BPH) is a high-incidence condition. Its diagnosis and treatment is shared between urologists and Primary Care physicians. Its management uses up a significant amount of resources. The Spanish Society of Primary Care Physicians (SEMERGEN), the Spanish Society of General Practitioners and Family Doctors (SEMG), the Spanish Society of Family and Community Medicine (semFYC), and the Spanish Association of Urology (AEU) have prepared a document on the management and monitoring of BPH, in which the aim is to incorporate the latest evidence in order to update the previously published guidelines, and present them here in condensed form. The main objective of these new recommendations is to raise the awareness of Primary Care physicians and assist them in its diagnostic evaluation, treatment and monitoring, as well as providing unified consensus criteria for referral to the secondary care level.

Evaluación de la intensidad de dolor mediante la escala numérica en pacientes con metástasis óseas antes y después del tratamiento con radioterapia / Pain intensity evaluation with numeric scale in patients with bone metastasis before and after of radiotherapy treatment

No disponible

Detección de anticuerpos contra agentes virales y bacterias atípicas en el suero de pacientes con infección respiratoria, Estado Zulia- Venezuela, periodo 2005 - 2010 / Detection of Antibodies against Viral Agents and Atypical Bacteria in the Serum of Patients with Respiratory Infections, State of Zulia, Venezuela, 2005-2010

El propósito de este estudio fue detectar anticuerpos contra virus respiratorios y bacterias atípicas en el suero de pacientes con infección respiratoria, en el Estado Zulia-Venezuela entre enero 2005 y diciembre 2010. Se analizaron 283 muestras de pacientes con sintomatología de infección respiratoria, clasificados en grupos etarios de 1-23 meses, 2-6, 7-14, 15-19, 20-40, 41-64 y 65 años de edad y más. La IgM sérica contra agentes virales (Adenovirus, Parainfluenza 1, 2, 3, Influenza A y B y Virus Sincicial Respiratorio) y bacterias atípicas (Mycoplasma pneumoniae, Legionella pneumophila serogrupo 1, Coxiella burnetii, Chlamydophila pneumoniae) se determinaron por el método de inmunofluorescencia indirecta (IFI). Del total resultaron 113 pacientes seropositivos a los agentes estudiados, no se encontraron coinfecciones. El agente más frecuentemente encontrado fue el VSR (27/113) 23,89% (p<0,01), seguido de Legionella pneumophila serogrupo 1 (19/113) 16,81%, (p<0,001), Adenovirus (16/113) 14,16%, Mycoplasma pneumoniae (15/113) 13,27%, Parainfluenza 1,2,3 (14/113) 12,40% e Influenza A y B (13/113) 11,5%, mientras que para Coxiella burnetii (6/113) se obtuvo 5,31% y para Chlamydophila pneumoniae (3/113) 2,65%. Los más afectados fueron los adultos jóvenes y medios. En conclusión los virus respiratorios causan gran parte de las infecciones en la población analizada, no obstante, es importante destacar la alta frecuencia de bacterias atípicas en la región.

The purpose of this study was to determine the presence of serum antibodies against respiratory viruses and atypical bacteria in patients with respiratory infections in the State of Zulia, Venezuela, between January 2005 and December 2010. Two-hundred eighty-three (283) serum samples from those patients were analyzed. Patients were classified according to age as: 1 to 23 months, 2 to 6 years, 7 to 14, 15 to 19, 20 to 40, 41 to 64 and 65 years old and over. Seric IgM against viral agents (Adenovirus, Parainfluenza 1, 2, 3, Influenza A and B and respiratory syncytial virus: RSV) and atypical bacteria (Mycoplasma pneumoniae, Legionella pneumophila serotype 1, Coxiella burnetii and Chlamydophila pneumoniae) were determined by indirect immunofluorescence. Of the 283 samples, 113 were seropositive; no co-infections were found. The most frequently found agent was RSV (27/113; 23.89%; p<0.01), followed by Legionella pneumophila serotype 1 (19/113; 16.81%; p<0.001). Adenovirus (16/113; 14.16%), Mycoplasma pneumoniae (15/113; 13.27%), Parainfluenza 1, 2 3 (14/113; 12.40%), Influenza A and B (13/113; 11.5%), Coxiella burnetii (6/113; 5.31%) and Chlamydophila pneumoniae (3/113; 2.65%) were less frequent. Young and middle-aged adults were the most affected. In conclusion, respiratory viruses cause a great part of the infections in the analyzed population; however, it is important to note the high frequency of atypical bacteria in the region.

L-type Ca²âº channel activity determines modulation of GABA release by dopamine in the substantia nigra reticulata and the globus pallidus of the rat.

Modulation of L-type Ca²âº-channel function by dopamine is a major determinant of the rate of action potential firing by striatal medium spiny neurons. However, the role of these channels in modulating GABA release by nerve terminals in the basal ganglia is unknown. We found that depolarization-induced [³H]GABA release in both the substantia nigra reticulata and the external globus pallidus (GPe), was depressed by about 50% by either the selective L-channel dihydropyridine blocker nifedipine or the P/Q channel blocker ω-agatoxin TK. The effects of these blockers were additive and together eliminated about 90% of depolarization-induced [³H]GABA release. In addition, in the substantia nigra reticulata, dihydropyridines prevented both the stimulation of [³H]GABA release produced by dopamine D1 receptor activation and the inhibition caused by D4 receptor activation. In the GP nifedipine blocked the effects of D2 and A2(A) receptor coactivation as well as the effects of activating adenylyl cyclase with forskolin. ω-Agatoxin TK did not interfere with the action of these modulatory agents. The L-type Ca²âº-channel agonist BAYK 8644 stimulated GABA release in both substantia nigra reticulata and GP. Because dihydropyridine sensitivity is a key criterion to identify L-type Ca²âº-channel activity, our results imply that these channels are determinant of GABA release modulation by dopamine in striatonigral, striatopallidal and pallidonigral terminals.

La anamnesis en la historia clínica en salud sexual: habilidades y actitudes / The medical history taking in sexual health: skills and attitudes

Una vida sexual satisfactoria repercute de manera favorable en la calidad de vida, existiendo evidencia de que previene múltiples procesos orgánicos y de que las disfunciones sexuales constituyen a menudo un signo precoz de enfermedad orgánica oculta (cardiovascular, endocrinológica o neurológica). Existen dificultades para realizar la anamnesis sexual por parte del profesional, del paciente o del sistema de salud, sin embargo, dada su importancia, es necesario que el médico adopte una actitud de búsqueda activa, sobre todo entre la población de riesgo. Para realizarla es necesario que la situación sea propicia (sentido de la oportunidad), preservando la confidencialidad del encuentro, y se llevará a cabo con naturalidad, empatía, adoptando una actitud de escucha activa, cuidando el lenguaje no verbal, sin emitir juicios de valor y recurriendo a la asertividad para superar las resistencias. En esta publicación se propone una pauta para realizarla adecuadamente (AU)

A sexual satisfactory life favourably affects quality of life, there being evidence that shows there are multiple organic processes of which sexual dysfunction is often a precocious sign of underlying organic disease (cardiovascular, endocrinological or neurological). Difficulties exist in recording the sexual anamnesis on the part of the professional, the patient, or by the health system. Nevertheless, given its importance, it is necessary for the doctor to adopt an attitude of active search, especially among the population of risk. To do this, it is necessary that the situation is propitious (sense of the opportunity), preserving the confidentiality of the meeting, and it will be carried out naturally and with empathy, adopting a listening attitude, taking into account the non-verbal language, without issuing valued judgments, and resorting to assertivity to overcome the resistances. This article proposes guidelines to perform an anamnesis adequately (AU)