Pintura del siglo XVII en las parroquias granadinas (II): Ciudad Baja, Realejo y Santa María de la Alhambra

Among the numerous works of art to be found in the city of Granada, the parish churches play a significant, and fascinating, if largely unknown role, since they contain a large part of the paintings done by the Granada school of the 171h century. In a previous article we discussed the Albayzin quarter, and the present paper aims to explore the artistic treasures to be found in other parish churches in the town. We also offer a series of considerations regarding the permanence, loss and dispersa! of these paintings, their state of conservation, iconographic aspects and authorship.En el abultado patrimonio artístico de Granada, las iglesias parroquiales constituyen un significativo depósito, tan fascinante como desconocido, de una buena parte de la producción pictórica de la escuela granadina del siglo XVII. En este contexto, y después de haber afrontado el barrio de El Albayzín en una entrega anterior, nuestro trabajo pretende ir desgranando las obras de esta fructífera parcela artística conservada actualmente en el resto de templos parroquiales de la ciudad. Igualmente, estableceremos una serie de consideraciones sobre la permanencia, pérdida y dispersión de estas pinturas; atendiendo también a su estado de conservación, aspectos iconográficos y autoría

Oracion en defensa de los gatos : probando su utilidad en las casas

Grab. xil. al final de textoSign.: A-B4A Res. 77/5/17(02

Is the haematopoietic effect of testosterone mediated by erythropoietin? The results of a clinical trial in older men

The stimulatory effects of testosterone on erythropoiesis are very well known, but the mechanisms underlying the erythropoietic action of testosterone are still poorly understood, although erythropoietin has long been considered a potential mediator. A total of 108 healthy men >65 years old with serum testosterone concentration <475 ng/dL were recruited by direct mailings to alumni of the University of Pennsylvania and Temple University, and randomized to receive a 60-cm(2) testosterone or placebo patch for 36 months. Ninety-six subjects completed the trial. We used information and stored serum specimens from this trial to test the hypothesis that increasing testosterone increases haemoglobin by stimulating erythropoietin production. We used information of 67 men, 43 in the testosterone group and 24 in the placebo group who had banked specimens available for assays of testosterone, haemoglobin and erythropoietin at baseline and after 36 months. The original randomized clinical study was primarily designed to verify the effects of testosterone on bone mineral density. The primary outcome of this report was to investigate whether or not transdermal testosterone increases haemoglobin by increasing erythropoietin levels. The mean age +/- SD of the 67 subjects at baseline was 71.8 +/- 4.9 years. Testosterone replacement therapy for 36 months, as compared with placebo, induced a significant increase in haemoglobin (0.86 +/- 0.31 g/dL, p = 0.01), but no change in erythropoietin levels (-0.24 +/- 2.16 mIU/mL, p = 0.91). Included time-varying measure of erythropoietin did not significantly account for the effect of testosterone on haemoglobin (Treatment-by-time: beta = 0.93, SE = 0.33, p = 0.01). No serious adverse effect was observed. Transdermal testosterone treatment of older men for 36 months significantly increased haemoglobin, but not erythropoietin levels. The haematopoietic effect of testosterone does not appear to be mediated by stimulation of erythropoietin production

The Interplay between Magnesium and Testosterone in Modulating Physical Function in Men

The role of nutritional status as determinant of successful aging is very well recognized. There is recent evidence that nutrition may exert its beneficial effects through the modulation of the hormonal anabolic milieu. Under-nutrition and anabolic hormonal deficiency frequently coexist in older individuals determining an increased risk of mobility impairment and adverse outcomes. Mineral dietary assessment has received attention as key component of the nutritional modulation of anabolic status and physical performance. There is evidence that several minerals, including magnesium, exert a positive influence on Insulin-like Growth Factor-1 (IGF-1) secretion in both sexes, and Testosterone (T) in men. In this review we summarize the existing knowledge about the mechanisms by which magnesium can affect T bioactivity in older men. Particular attention will be also devoted to the preliminary observational and intervention studies addressing the relationship between magnesium and T in adult and older individuals. We believe that, if larger studies will confirm these pivotal data, hormonal and mineral strategies might be adopted as synergistic treatment to approach the multifactorial nature of accelerated aging

Brief practical clinical diagnostic criteria for the neurodegenerative diseases in the elderly

In the literature there is need of clinical and instrumental characterization of all neurodegenerative diseases. Particular attention deserves the timing of the onset of motor or cognitive symptoms, which is extremely useful issue giving the frequent overlapping between neurodegenerative diseases. Aim of this review is to provide a description of typical clinical and imaging features of all neurodegenerative diseases, especially idiopathic Parkinson's disease (PD) and Alzheimer's disease (AD). Particular attention will be devoted to the cluster of symptoms at the moment of the diagnosis. Based on early starting symptoms (cognitive or extrapiramidal) we will introduce criteria to differentiate AD from fronto-Temporal Dementia (FTD), Lewy bodies dementia (DLB) and Vascular dementia (VaD), and between PD, Vascular Parkinsonism (VP) and DLB. All these diseases are characterized by cognitive deficits. PD will be suspected if cognitive impairment occurs at least one year after the onset of the motor symptoms while VP and DLB are more likely if cognitive deficits and motor symptoms appear simultaneously. Finally, we will focus on parkinsonian signs plus other motor symptoms at the time of the diagnosis. The presence of cerebellar or pyramidal signs, with falls and autonomic dysfunction, with or without cognitive deficit should help to consider potential causes of atypical parkinsonism including cortical-basal degeneration (CBD), multiple system atrophy (MSA) and progressive supranuclear palsy (PSP)

Placental Structure in Type 1 Diabetes: Relation to Fetal Insulin, Leptin, and IGF-I

OBJECTIVE-Alteration of placental structure may influence fetal overgrowth and complications of maternal diabetes. We examined the placenta in a cohort of offspring of mothers with type I diabetes (OT1DM) to assess structural changes and determine whether these were related to maternal A1C, fetal hematocrit, fetal hormonal, or metabolic axes. RESEARCH DESIGN AND METHODS-Placental samples were analyzed using stereological techniques to quantify volumes and surface areas of key placental components in 88 OT1DM and 39 control subjects, and results related to maternal A1C and umbilical cord analytes (insulin, leptin, adiponectin, IGF-I, hematocrit, lipids, C-reactive protein, and interleukin-6). RESULTS-Intervillous space volume was increased in OT1DM (OT1DM 250 +/- 81 cm(3) VS. control 217 +/- 65 cm(3); P = 0.02) with anisomorphic growth of villi (P = 0.025). The placentas showed a trend to increased weight (OT1DM 690 +/- 19 g; control 641 +/- 22 g; P = 0.08), but villous, nonparenchymal, trophoblast, and capillary volumes did not differ. Villous surface area, capillary surface area, membrane thickness, and calculated morphometric diffusing capacity were also similar in type 1 diabetic and control subjects. A1C at 26-34 weeks associated with birth weight (r = 0.27, P = 0.03), placental weight (r = 0.41, P = 0.0009), and intervillous space volume (r = 0.38, P = 0.0024). In multivariate analysis of cord parameters in OT1DM, fetal IGF-I emerged as a significant correlate of most components (intervillous space, villous, trophoblast, and capillary volumes, all P &lt; 0.01). By contrast, fetal insulin was only independently associated with capillary surface area (positive, r(2) = 6.7%; P = 0.02). CONCLUSIONS-There are minimal placental structural differences between OT1DM and control subjects. Fetal IGF-I but not fetal insulin emerges as a key correlate of placental substructural volumes, thereby facilitating feedback to the placenta regarding fetal metabolic deman

The Role of the Multiple Hormonal Dysregulation in the Onset of “Anemia of Aging”: Focus on Testosterone, IGF-1, and Thyroid Hormones

Anemia is a multifactorial condition whose prevalence increases in both sexes after the fifth decade of life. It is a highly represented phenomenon in older adults and in one-third of cases is “unexplained.” Ageing process is also characterized by a “multiple hormonal dysregulation” with disruption in gonadal, adrenal, and somatotropic axes. Experimental studies suggest that anabolic hormones such as testosterone, IGF-1, and thyroid hormones are able to increase erythroid mass, erythropoietin synthesis, and iron bioavailability, underlining a potential role of multiple hormonal changes in the anemia of aging. Epidemiological data more consistently support an association between lower testosterone and anemia in adult-older individuals. Low IGF-1 has been especially associated with anemia in the pediatric population and in a wide range of disorders. There is also evidence of an association between thyroid hormones and abnormalities in hematological parameters under overt thyroid and euthyroid conditions, with limited data on subclinical statuses. Although RCTs have shown beneficial effects, stronger for testosterone and the GH-IGF-1 axis and less evident for thyroid hormones, in improving different hematological parameters, there is no clear evidence for the usefulness of hormonal treatment in improving anemia in older subjects. Thus, more clinical and research efforts are needed to investigate the hormonal contribution to anemia in the older individuals

Impacto de los componentes del capital de trabajo en el valor de las empresas peruanas listadas en la Bolsa de Valores de Lima (BVL) durante el periodo 2010-2018

El objetivo principal de esta tesis es analizar el impacto de los componentes del capital de trabajo en el valor de las empresas de las empresas que cotizan en la Bolsa de Valores de Lima durante el periodo 2010 - 2018. Esta investigaci?n adopta un enfoque cuantitativo mediante un an?lisis utilizando el modelo datos de panel con efectos fijos muestra las relaciones existentes entre las variables dependientes, las cuales miden el valor y la rentabilidad de la empresa, y las variables independientes planteadas, identificando las principales relaciones significativas y explicativas. Lo m?s resaltante que se concluye es que en el Sector Manufactura existe una relaci?n significativa positiva entre el periodo medio de pago con el valor de la empresa medido a trav?s del ROE; adem?s, se encuentra una relaci?n negativa entre el ciclo de conversi?n de efectivo y el valor de la empresa medido a trav?s del ROE. En el Sector Miner?a e Hidrocarburos se encuentra una relaci?n positiva entre el periodo de conversi?n de inventarios con el valor de la empresa medido a trav?s del ROA, as? tambi?n, se identifica una relaci?n positiva entre el ciclo de conversi?n de efectivo y el valor de la empresa medido con ROE