| mitochondrial dna phylogeny and sequential colonization of canary islands by darkling beetles of the genus pimelia (tenebrionidae). | fifteen species of the darkling beetle genus pimelia (tenebrionidae: coleoptera) have been sequenced for a 365 b.p. portion of the mitochondrial cytochrome oxidase i gene. thirteen of these are endemic species inhibiting the canarian archipelago in the atlantic and the other two are continental conspecifics. this data set has been phylogenetically analysed by maximum parsimony and distance approaches and the resulting trees used to deduce sequential interisland colonization. this suggests patter ... | 1995 | 7568271 |
| [intake of pollutants (heavy metals) via total diet at the national level as a whole and in autonomous communities: a new approach]. | as an answer to the request of information on the real intake of pollutants, both who and fao recommend its study through the study of total diet. following their criteria we have determined the contents of arsenic, cadmium, mercury and lead in the total mean spanish diet and in the seventeen autonomous regions, comparing them with the acceptable daily intakes (adi). at the same time it is studied the contribution of the different groups of nutrients to the total pollutant charge. there is no de ... | 1993 | 8341819 |
| geographical variations in the prevalence of hiv infection among drug users receiving ambulatory treatment in spain. | to identify the factors responsible for the regional differences in hiv-positive serostatus among drug users in spain receiving outpatient treatment, the 17 autonomous regions into which spain is divided were classified as high (mean 52%) or low prevalence groups (mean 34%) depending on the prevalence of seropositivity. in regions where the prevalence of positive serostatus was high, unemployment was more markedly associated with hiv infection than in low prevalence regions, while other potentia ... | 1993 | 8505189 |
| genetic heterogeneity in hispanic families with autosomal dominant juvenile glaucoma. | a gene for autosomal dominant, juvenile-onset, primary open angle glaucoma (glcia) has been previously mapped to 1q21-31 in several caucasian pedigrees. we studied two hispanic families with this disease to determine if their disease genes also map to this region. individuals were considered as being affected if they had 1op > 30 mmhg (without treatment) and glaucomatous optic nerve damage or visual field defects. persons older than 40 years with intraocular pressures < or = 21 mmhg and no evide ... | 1996 | 8905848 |
| paleonutritional analysis on the prehispanic population from la palma (canary islands). | in this study, we determine bone strontium, barium, and calcium, as well as zinc, copper, and iron, in prehispanic samples belonging to adult individuals from the two main funerary caves from la palma (espigón and barranco porto), comparing them with our own modern controls. we have found that the ba/sr molar ratio of the individuals from barranco porto are significantly lower than that of the individuals from espigón, thus suggesting a consumption of a marine-based diet by the former. | 2001 | 11330522 |
| tracking colonization and diversification of insect lineages on islands: mitochondrial dna phylogeography of tarphius canariensis (coleoptera: colydiidae) on the canary islands. | the genus tarphius erichson (coleoptera: colydiidae) is represented by 29 species on the canary islands. the majority are rare, single-island endemics intimately associated with the monteverde (laurel forest and fayal-brezal). the tarphius canariensis complex is by far the most abundant and geographically wide-spread, occurring on gran canaria, tenerife and la palma. eighty-seven individuals from the t. canariensis complex were sequenced for 444 bp of the mitochondrial dna cytochrome oxidase i g ... | 2000 | 11413633 |
| vitamins in spanish food patterns: the eve study. | to describe vitamin intakes in spanish food patterns, identify groups at risk for inadequacy and determine conditioning factors that may influence this situation. | 2001 | 11918471 |
| epidemiology of multiple sclerosis in the canary islands (spain): a study on the island of la palma. | to determine the prevalence of multiple sclerosis (ms) on the island of la palma, canary islands, spain. | 2002 | 12382152 |
| [concentrations of na, k, ca, and p in serum from a representative sample of the canary islands population]. | as part of the nutritional survey of the canary islands (enca-1998), the concentrations in serum of na, k, ca and p were determined in 395 individuals representing the population of the canary islands. the concentrations were found to be within the reference intervals described for the healthy population. differences were observed in the mean concentrations depending on the island of residence. thus, individuals on the island of tenerife showed higher levels of natremia and calcaemia (p < 0.05) ... | 2002 | 12395610 |
| allozyme diversity in natural populations of viola palmensis webb & berth. (violaceae) from la palma (canary islands): implications for conservation genetics. | genetic diversity was measured by allozyme electrophoresis in eight natural populations of the threatened canarian endemic viola palmensis webb & berth. (violaceae). nineteen alleles corresponding to 11 gene loci were detected. high levels of genetic diversity were found, ranging from 36.3 to 45.4 % for the percentage of polymorphic loci (p), from 1.45 to 1.60 for the average number of alleles per locus (a) and from 0.128 to 0.200 for the expected heterozygosity (h(e)). between 85.5 and 96.6 % o ... | 2002 | 12451028 |
| selenium and mercury concentrations in sweet and dry bottled wines from the canary islands, spain. | the concentrations of selenium and mercury were determined by atomic absorption spectrophotometry in sweet and dry bottled wines from the canary islands, spain. the concentrations of mercury ranged from 2.6 to 4.9 microg x l(-1) for sweet wines, and from 1.5 to 2.6 microg x l(-1) for dry wines, differences (p < 0.05) being observed according to the island of production and type of wine, but not with respect to vintage. the concentration of selenium varied between 1.0 and 2.0 microg x l(-1) for s ... | 2003 | 12623647 |
| [prevalence of obesity in spain: results of the seedo 2000 study]. | obesity is a major public health problem in developed countries. it is of key importance to ascertain its magnitude and to identify main groups at risk. in this paper the prevalence of obesity in spanish adult population aged 25-60 is estimated, based on measured height and weight. | 2003 | 12732125 |
| measles virus genotype circulation in spain after implementation of the national measles elimination plan 2001-2003. | molecular characterization of measles virus is important for disease surveillance and for monitoring elimination of the virus throughout the world. furthermore, knowledge of genotype distribution in as many countries as possible, is useful for tracing the origin of a strain, especially in countries without endemic measles disease, where most cases are imported. data on genotypes circulating in spain from 1970 to 1997 showed the prevalence of genotypes c1, c2, and d6, with subsequent replacement ... | 2005 | 15543577 |
| bone cadmium and lead in the ancient population from el hierro, canary islands. | this study was performed to determine the levels of lead (pb) and cadmium (cd) in 63 bone samples of the prehispanic population of the island el hierro, comparing them with the values obtained on 98 prehispanic samples from tenerife, fuerteventura, gran canaria, and la palma, all of them in the canary islands, and with eight modern samples who served as controls. prehispanic individuals from el hierro showed the lowest bone pb values of all the archipelago (0.72+/-1.01 mg/kg), significantly diff ... | 2005 | 16034152 |
| lead dietary intake in a spanish population (canary islands). | for most people diet is the main route of exposure to trace metals, so information about dietary intake is also important to assess risks to human health for these elements. the purpose of this study was to determine the levels of pb in the foods and drinks of highest consumption in the authors' our community to estimate daily intakes of pb for each of the seven canary islands. four hundred and twenty samples were analyzed using gfaas. the total pb intake of the canarian population is 72.8 micro ... | 2005 | 16076147 |
| testing phylogeographic predictions on an active volcanic island: brachyderes rugatus (coleoptera: curculionidae) on la palma (canary islands). | volcanic islands with well-characterized geological histories can provide ideal templates for generating and testing phylogeographic predictions. many studies have sought to utilize these to investigate patterns of colonization and speciation within groups of closely related species across a number of islands. here we focus attention within a single volcanic island with a well-characterized geological history to develop and test phylogeographic predictions. we develop phylogeographic predictions ... | 2006 | 16448412 |
| municipal distribution of breast cancer mortality among women in spain. | spain has one of the lowest rates of breast cancer in europe, though estimated incidence has risen substantially in recent decades. some years ago, the spanish cancer mortality atlas showed spain as having a heterogeneous distribution of breast cancer mortality at a provincial level. this paper describes the municipal distribution of breast cancer mortality in spain and its relationship with socio-economic indicators. | 2007 | 17488519 |
| occurrence of polycyclic aromatic hydrocarbons in artisanal palmero cheese smoked with two types of vegetable matter. | palmero cheese is a fresh smoked cheese from the isle of palma (canary islands), manufactured with goat's milk. to guarantee its safety, the occurrence of polycyclic aromatic hydrocarbons (pah) in artisanal palmero cheese smoked with 2 types of vegetable matter (almond shells and dry prickly pear) was studied. the determination of pah includes extraction and clean-up steps, followed by separation, identification, and quantification of pah by gas chromatography-mass spectrometry in selected ion-m ... | 2007 | 17517711 |
| epidemiology of hip fracture in the elderly in spain. | to describe the incidence and epidemiological characteristics of hip fracture (hf) in patients aged 65 years or over in the various autonomous regions (ar) of spain from the year 2000 to 2002 and to determine which factors affect in-hospital mortality. | 2008 | 18037366 |
| total dietary intake of mercury in the canary islands, spain. | estimating the risk associated with dietary intake of heavy metals by consumers is a vital and integral part of regulatory processes. the assessment of exposure to mercury shown in this paper has been performed by means of a study on the whole diet. total mercury (hg) levels were determined by cold vapour atomic absorption spectrometry (aas) in 420 samples of regularly consumed food and drink. the total hg concentrations measured in the different groups of food ranged from non-detectable to 119 ... | 2008 | 18629690 |
| municipal distribution of ovarian cancer mortality in spain. | spain was the country that registered the greatest increases in ovarian cancer mortality in europe. this study describes the municipal distribution of ovarian cancer mortality in spain using spatial models for small-area analysis. | 2008 | 18789142 |
| genetic diversity and differentiation processes in the ploidy series of olea europaea l.: a multiscale approach from subspecies to insular populations. | geographical isolation and polyploidization are central concepts in plant evolution. the hierarchical organization of archipelagos in this study provides a framework for testing the evolutionary consequences for polyploid taxa and populations occurring in isolation. using amplified fragment length polymorphism and simple sequence repeat markers, we determined the genetic diversity and differentiation patterns at three levels of geographical isolation in olea europaea: mainland-archipelagos, isla ... | 2009 | 19143937 |
| ultrastructural study of the spermatozoon of taenia taeniaeformis (batsch, 1786) (cestoda, cyclophyllidea, taeniidae), an intestinal parasite of felis catus from la palma (canary islands, spain). | the ultrastructural characters of the mature spermatozoon of taenia taeniaeformis are described by means of transmission electron microscopy. materials were obtained from a naturally infected road-killed cat (felis catus) from la palma (canary islands, spain). the mature spermatozoon of t. taeniaeformis is a filiform cell, which is tapered at both extremities and lacks mitochondria. it is characterised by the presence of (1) a single spirallised crested body about 140 nm thick, (2) a single axon ... | 2009 | 19205741 |
| the maternal aborigine colonization of la palma (canary islands). | teeth from 38 aboriginal remains of la palma (canary islands) were analyzed for external and endogenous mitochondrial dna control region sequences and for diagnostic coding positions. informative sequences were obtained from 30 individuals (78.9%). the majority of lineages (93%) were from west eurasian origin, being the rest (7%) from sub-saharan african ascription. the bulk of the aboriginal haplotypes had exact matches in north africa (70%). however, the indigenous canarian sub-type u6b1, also ... | 2009 | 19337312 |
| impact of alien plant invaders on pollination networks in two archipelagos. | mutualistic interactions between plants and animals promote integration of invasive species into native communities. in turn, the integrated invaders may alter existing patterns of mutualistic interactions. here we simultaneously map in detail effects of invaders on parameters describing the topology of both plant-pollinator (bi-modal) and plant-plant (uni-modal) networks. we focus on the invader opuntia spp., a cosmopolitan alien cactus. we compare two island systems: tenerife (canary islands) ... | 2009 | 19609437 |
| divergence times and colonization of the canary islands by gallotia lizards. | the canary islands have become a model region for evolutionary studies. we obtained 1.8 kbp of mtdna sequence from all known island forms of the endemic lizard genus gallotia and from its sister taxon psammodromus in order to reanalyze phylogenetic relationships within the archipelago, estimate lineage divergence times, and reconstruct the colonization history of this group. well-supported phylogenies were obtained using maximum parsimony and bayesian inference. previous studies have been unable ... | 2010 | 20307675 |
| dietary intake of aluminum in a spanish population (canary islands). | the aim of this study was to analyze the aluminum content in foods and beverages most commonly consumed by the canary island population to determine the dietary intake of this metal throughout the canary islands as a whole and in each of the seven islands (gran canaria, lanzarote, fuerteventura, tenerife, la palma, la gomera, and el hierro). four hundred and forty samples were analyzed by icp-oes. estimated total intake of aluminum for the canary population was 10.171 mg/day, slightly higher tha ... | 2010 | 20809646 |
| healthy and unhealthy migrant effect on the mortality of immigrants from wealthy countries residing in spain. | this study attempts to identify the possible existence of a healthy migrant effect and an unhealthy migrant effect on the mortality of immigrants from wealthy countries who move to spain. immigrants aged 35-64 years from france, germany, great britain and 16 other wealthy oecd countries who resided in spain were compared with respect to: (1) mortality from cancer, cardiovascular disease, and all other diseases and (2) employment status, duration of residence, and educational level, in two geogra ... | 2010 | 20878542 |
| depth profile of (236)u/(238)u in soil samples in la palma, canary islands. | the vertical distribution of the (236)u/(238)u isotopic ratio was investigated in soil samples from three different locations on la palma (one of the seven canary islands, spain). additionally the (240)pu/(239)pu atomic ratio, as it is a well establish tool for the source identification, was determined. the radiochemical procedure consisted of a u separation step by extraction chromatography using uteva(®) resin (eichrom technologies, inc.). afterwards pu was separated from th and np by anion ex ... | 2011 | 21481502 |
| diversity of acetic acid bacteria present in healthy grapes from the canary islands. | the identification of acetic acid bacteria (aab) from sound grapes from the canary islands is reported in the present study. no direct recovery of bacteria was possible in the most commonly used medium, so microvinifications were performed on grapes from tenerife, la palma and lanzarote islands. up to 396 aab were isolated from those microvinifications and identified by 16s rrna gene sequencing and phylogenetic analysis. with this method, acetobacter pasteurianus, acetobacter tropicalis, glucono ... | 2011 | 21903289 |