Publications
| Title | Abstract | Year(sorted descending) Filter | PMID Filter |
|---|
| timing of brain-derived neurotrophic factor exposure affects life expectancy of new neurons. | the high vocal center (hvc) of adult male canaries, serinus canaria, is necessary for the production of learned song. new neurons are added to hvc every day, where they replace older neurons that have died, but the length of their survival depends on the time of year when they are born. a great number of hvc neurons born in the fall, when adult canaries learn a new song, are still present 8 mo later, when this song is used during the breeding season. by contrast, most of the neurons born in hvc ... | 2004 | 15004273 |
| complex estimates of evolutionary relationships in tarentola mauritanica (reptilia: gekkonidae) derived from mitochondrial dna sequences. | mitochondrial dna (12s rrna, 16s rrna) sequences were analysed within tarentola mauritanica and other selected species of tarentola. several highly genetically distinct lineages occur in north africa, revealing phylogroups in southern and central morocco, northern morocco, algeria, tunisia, and libya. a single haplotype characterizes populations across spain, portugal, italy, menorca, crete, and tunisia raising the possibility of an anthropogenic introduction followed by rapid population expansi ... | 2004 | 15012965 |
| hepatic lesions in cetaceans stranded in the canary islands. | this article describes the gross, histopathologic, and ultrastructural findings of the livers of cetaceans stranded on the coast of the canary islands between 1992 and 2000. a total of 135 cetaceans were included in the study, among which 25 were common dolphins (delphinus delphis), 23 atlantic spotted dolphins (stenella frontalis), 19 striped dolphins (stenella coeruleoalba), and 15 other species of dolphins and whales. the most common lesion observed in these animals was a nonspecific chronic ... | 2004 | 15017028 |
| experience with cyclosporine in the canary islands. | cyclosporine (csa) is currently the basis of most immunosuppressive protocols after solid organ transplantation. the introduction of neoral, a new microemulsion formulation of csa, and more recently a range of adjunctive immunosuppressants have further enhanced short-term efficacy and tolerability of csa-based immunosuppression. in addition, neoral c2 monitoring has been shown to have advantages not only in the early posttransplant period, but also for maintenance transplant patients. the major ... | 2004 | 15041320 |
| novel meroditerpenes from the brown alga cystoseira sp. | five new meroditerpenes have been isolated from a brown alga of the genus cystoseira collected around the canary islands. one, cystoseirone diacetate (3), possesses a new rearranged structure with an unusual ether linkage in the diterpene side chain. its biogenetic origin was explained as derived from the oxidation of amentol chromane diacetate (2) and subsequent cyclization. structures were determined through the interpretation of the spectral data and by means of chemical transformations. the ... | 2004 | 15043443 |
| bioremediation process for sediments contaminated by heavy metals: feasibility study on a pilot scale. | the core stages of a sediment remediation process--the conditioning of dredged sludge by plants and the solid-bed leaching of heavy metals using microbially produced sulfuric acid--were tested on a pilot scale using a highly polluted river sediment. conditioning was performed in 50 m3 basins at sludge depths of 1.8 m. during one vegetation period the anoxic sludge turned into a soil-like oxic material and became very permeable to water. reed canary grass (phalaris arundinacea) was found to be be ... | 2004 | 15046363 |
| [gender has a strong modulating effect on the risk of alzheimer's disease conferred by the apolipoprotein e gene in the population of the canary islands, spain]. | apolipoprotein e (apoe) gen has been found to confer risk for alzheimer disease in every population studied. we are interested in analyzed the exonic variants and the promoter polymorphisms in our canary population. | 2004 | 15098180 |
| mitochondrial phylogeography of the long-eared bats (plecotus) in the mediterranean palaearctic and atlantic islands. | long-eared bats of the genus plecotus are widespread and common over most of the western palaearctic. based on recent molecular evidence, they proved to represent a complex of several cryptic species, with three new species being described from europe in 2002. evolutionary relationships among the different lineages are still fragmentary because of the limited geographic coverage of previous studies. here we analyze plecotus mitochondrial dna sequences from the entire mediterranean region and atl ... | 2004 | 15120404 |
| chemical composition of the sponge hymeniacidon sanguinea from the canary islands. | the fatty acid composition of the lipids from the sponge hymeniacidon sanguinea was investigated and 73 acids were identified. three of them were new and their structures, elucidated by gas chromatography/mass spectrometry, were identified as 13-methyl-icosanoic, 15-methyl-docosanoic and 3,13-dimethyl-tetradecanoic. only 12 sterols were present, with cholestanol predominating in the volatile fraction; 22 compounds were identified, mainly hydrocarbons and fatty acids. in the n-butanol fraction, w ... | 2004 | 15123209 |
| do therapeutic indications of antidepressants change from one year to another? | to analyse and describe the pattern of prescriptions for antidepressants by all psychiatrists working for the canary islands health service (cihs) during the 4-year period from 1999 to 2002. | 2004 | 15133783 |
| serum concentrations of macro and trace elements in heroin addicts of the canary islands. | na, k, ca, mg, p, fe, cu, zn and se concentrations were determined in the serum of 106 heroin addicts and were compared with the concentrations obtained in a control group formed of 186 apparently healthy individuals. heroin addicts displayed k and se mean concentrations lower (p < 0.05), and na, mg, p mean concentrations and a cu/zn ratio higher (p < 0.05) than those mean values observed in the control group. the mg and p concentrations in the serum of heroin addicts tended to normalize when ag ... | 2004 | 15139385 |
| [murine tifus in canary islands, spain]. | 2004 | 15142516 | |
| canary needs help; send for willie sutton. | 2004 | 15144306 | |
| isolation, geographical diversity and insecticidal activity of bacillus thuringiensis from soils in spain. | bacillus thuringiensis is a spore-forming bacterium showing the unusual ability to produce endogenous crystals during sporulation that are toxic for some pest insects. this work was performed to study the composition, ecological distribution and insecticidal activity of isolates of this entomopathogenic bacterium from the spanish territory. using a standard isolation method, b. thuringiensis was isolated from 115 out of 493 soil samples collected in the iberian peninsula and the canary and balea ... | 2004 | 15160608 |
| helminth infracommunities of gallotia caesaris caesaris and gallotia caesaris gomerae (sauria: lacertidae) from the canary islands (eastern atlantic). | a survey of gastrointestinal helminth communities of gallotia caesaris caesaris (lehrs, 1914) and g. c. gomerae (boettger and muller, 1914), from the islands of el hierro and la gomera, respectively, in the canary archipelago, spain, was conducted to determine the prevalence, intensity, and diversity of intestinal parasites of these lacertid lizards. larval forms of cestodes, nematodes, and acanthocephalans were found in the body cavity of g. c. caesaris; this lizard is the intermediate or parat ... | 2004 | 15165048 |
| [gender sensitivity in the formulation of spanish health plans: what it could have been but wasn't]. | to systematically examine gender sensitivity in the policies formulated in the health plans of the various autonomous communities in spain in which these plans are available. we defined gender sensitivity as the extent to which the health plans took gender into account as a relation category and developed interventions to ameliorate gender-related inequalities. | 2004 | 15171843 |
| recent advances in chromaffin cell biology: summing up the last international symposium on chromaffin cell biology. | the international symposium on chromaffin cell biology (isccb) brings together a group of approximately 150 scientists from around the world who meet every 2 years to discuss recent advances in our understanding of biogenesis and motion of secretory vesicles, synthesis, storage and release of secreted products (catecholamines, chromogranins, atp), and mechanisms involving the excitation-secretion coupling, membrane ion channels, intracellular calcium homeostasis and exocytosis. the development o ... | 2004 | 15174301 |
| cryptic species related to daldinia concentrica and d. eschscholzii, with notes on d. bakeri. | daldinia macaronesica (from the canary islands and madeira), d. palmensis (from the canary islands), d. martinii and d. raimundi (from sicily), and d. vanderguchtiae (from jersey, channel islands) spp. nov., are described, based on new combinations of teleomorphic and anamorphic characters. they all resemble the pantropical d. eschscholzii and/or the european d. concentrica with regard to teleomorphic characters and secondary metabolite profiles generated by analytical hplc. the status of the ne ... | 2004 | 15185977 |
| molecular phylogenetic evidence for the geographic origin and classification of canary island lotus (fabaceae: loteae). | molecular phylogenetic analyses of macaronesian lotus and related genera were conducted to assess their biogeographic history and taxonomy. macaronesian lotus, which are typically classified within one of two subgenera, lotus subgenus pedrosia or l. subg. rhyncholotus, are diagnosed by the presence of a forked or toothed style and differences in corolla morphology. maximum parsimony and bayesian analyses of internal transcribed spacer sequences identify a well-supported northwest african-cape ve ... | 2004 | 15186802 |
| syllable repertoire and the size of the song control system in captive canaries (serinus canaria). | in songbirds, there is considerable interest in relationships between song structure and the size of the song control system in the forebrain. in male canaries, earlier studies have reported that repertoire size increased with age, and positive correlations were obtained between repertoire size and the volume of song control nuclei such as high vocal center (hvc). here we investigate whether age has an effect upon both the song structure and the morphology of two song control nuclei [hvc and rob ... | 2004 | 15188269 |
| serological study of contagious agalactia in herds of goats in the canary islands. | an indirect elisa, using local strains of mycoplasma agalactiae and mycoplasma mycoides subspecies mycoides large colony (mmmlc), was applied to evaluate the seroprevalence of m agalactiae and mmmlc in flocks of goats on each of the canary islands. in total 3890 samples of serum were collected from 204 flocks. the results indicated that the seroprevalence of both organisms is high on all the islands; average values of 55 per cent and 67 per cent were recorded, respectively, for m agalactiae and ... | 2004 | 15200073 |
| murine typhus with renal involvement in canary islands, spain. | murine typhus and "murine-typhus-like" disease are reemerging infectious diseases. in canary islands (spain), a rather distinct clinical pattern characterized by higher incidence of complications, especially renal damage (including acute failure and urinalysis abnormalities), is apparent and highly suggestive. it could be related to different strains of rickettsia typhi or other cross-reactive species. | 2004 | 15200874 |
| [socio-economic costs of mental health in the canary islands, spain, in 2002]. | to evaluate the economic impact in terms of direct and indirect costs of the mental health in canary islands (spain) in 2002. | 2004 | 15207197 |
| controversial issues associated with the prescription of benzodiazepines by general practitioners and psychiatrists. | benzodiazepines are commonly used psychotropics frequently applied in ways not fully supported by the present state of scientific knowledge. these departures are usually based on considerations of clinical practice characteristics seldom fully acknowledged by evidence based medicine. | 2004 | 15232502 |
| polypharmacy in psychiatric practice in the canary islands. | polypharmacy with psychoactive drugs is an increasingly common and debatable contemporary practice in clinical psychiatry based more upon experience than evidence. the objective of this study was to evaluate the prevalence and conditioners of polypharmacy in psychiatric patients. | 2004 | 15236661 |
| allozyme variation and structure of the canarian endemic palm tree phoenix canariensis (arecaceae): implications for conservation. | electrophoretic analysis of 18 allozyme loci was used to estimate the levels and structuring of genetic variation within and among natural populations of the protected endemic palm species from the canary islands (phoenix canariensis) to evaluate its genetic relationship with the widespread congener p. dactylifera, and to assess comparatively the genetic variation in the populations where the two species coexist with morphologically intermediate plants (mixed populations). our survey revealed th ... | 2004 | 15241448 |
| european starling chicks benefit from high yolk testosterone levels during a drought year. | avian egg yolk contains androgenic hormones, such as testosterone, of maternal origin. experimental elevation of yolk testosterone levels enhances growth of canary chicks. success in sibling competition, due to increased begging, is presumed to underlie this growth enhancement, because canary hatchlings from testosterone-treated eggs beg longer in response to vibrational stimuli than controls. furthermore, experimental elevation of both yolk androstenedione and testosterone increased chick growt ... | 2004 | 15256308 |
| catecholaminergic inputs to aromatase cells in the canary auditory forebrain. | the caudomedial nidopallium in songbirds is a specialized forebrain auditory region involved in the processing of species-typical vocalizations. it receives a prominent catecholaminergic projection with many fibers forming basket-like structures around non-immunoreactive cells. we investigated in male canaries the anatomical relationship between tyrosine hydroxylase and cells immunoreactive for the steroid metabolizing enzyme, aromatase, in the caudomedial nidopallium using double-label immunocy ... | 2004 | 15257136 |
| modulation by steroid hormones of a "sexy" acoustic signal in an oscine species, the common canary serinus canaria. | the respective influence of testosterone and estradiol on the structure of the common canary serinus canaria song was studied by experimentally controlling blood levels of steroid hormones in males and analyzing the consequent effects on acoustic parameters. a detailed acoustic analysis of the songs produced before and after hormonal manipulation revealed that testosterone and estradiol seem to control distinct song parameters independently. the presence of receptors for testosterone and estradi ... | 2004 | 15258651 |
| bioacoustics of human whistled languages: an alternative approach to the cognitive processes of language. | whistled languages are a valuable heritage of human culture. this paper gives a first survey about a new multidisciplinary approach to these languages. previous studies on whistled equivalents of languages have already documented that they can provide significant information about the role of rhythm and melody in language. to substantiate this, most whistles are represented by modulations of frequency, centered around 2000 hz (+/- 1000 hz) and often reach a loudness of about 130 db (measured at ... | 2004 | 15258658 |
| content of toxic and essential metals in canned mussels commonly consumed in tenerife, canary islands, spain. | concentrations of three toxic heavy metals (hg, pb, cd) and six essential heavy metals (fe, zn, mn, cr, cu, ni) were determined in mussel conserves (mytilus galloprovincialis, bivalvia, mollusca) consumed habitually by individuals in tenerife (canary islands, spain). a total of 600 samples were analyzed, corresponding to six different commercial brands and four different processing types: pickled sauce (mixture of olive oil, vinegar, red pepper, laurel, and salt), coquille st. jacques sauce (coq ... | 2004 | 15270515 |
| study on the formation and transport of ozone in relation to the air quality management and vegetation protection in tenerife (canary islands). | an experimental study on the formation and transport of ozone in ambient air was performed in tenerife (canary islands) in order to investigate the processes affecting ozone levels and air quality. the special features of tenerife (prevalence of the trade wind pattern (ne), orography and the specific location of the local ozone sources) permit to quantify the role of the 'long-range transport from northern latitudes' versus the 'formation and transport of ozone downwind of the main urban areas' ... | 2004 | 15276729 |
| bilateral song production in domestic canaries. | we studied the mechanism of song production in the outbred common or domestic canary (serinus canaria). the contribution that each side of the syrinx makes to song was investigated by observing the effect of unilaterally occluding the left or right primary bronchus, followed by section of the ipsilateral branch of the tracheosyringeal nerve. in other birds with a bilaterally intact vocal system we monitored airflow through each side of the syrinx, together with subsyringeal pressure, during spon ... | 2004 | 15281075 |
| differential accumulation and pigmenting ability of dietary carotenoids in colorful finches. | many animals develop bright red, orange, or yellow carotenoid pigmentation that they use to attract mates. colorful carotenoid pigments are acquired from the diet and are either directly incorporated as integumentary colorants or metabolized into other forms before deposition. because animals often obtain several different carotenoids from plant and animal food sources, it is possible that these pigments are accumulated at different levels in the body and may play unique roles in shaping the ult ... | 2004 | 15286921 |
| a comparison of diagnosis of pregnancy in the goat via transrectal ultrasound scanning, progesterone, and pregnancy-associated glycoprotein assays. | real-time ultrasound scanning (us) via the transrectal route, progesterone (p4) assay, and pregnancy-associated glycoprotein (pag) detection can be used to diagnose pregnancy at around 3 weeks after breeding. although several studies have been carried out to evaluate each of these different methods individually, it is difficult to establish adequate comparisons due to differences, such as the breed of goat, age, and farming conditions, among others. the aim of the present paper is to compare the ... | 2004 | 15289050 |
| folate status of adults living in the canary islands (spain). | human studies support the hypothesized contribution of folate deficiency to carcinogenesis and vascular risk. we assess the nutritional folate status and its relationship to folate intake, smoking, alcohol consumption, oral contraceptive use, and multivitamin supplements. | 2004 | 15296077 |
| sexually attractive phrases increase yolk androgens deposition in canaries (serinus canaria). | the androgen concentration in birds' eggs varies with laying order, breeding conditions, and mate attractiveness. in passerine birds, mate attractiveness depends upon song quality. the aim of our study was to evaluate the effect of one criterion used by females to assess male song quality that is to say the presence of sexually attractive phrases on yolk androgen deposition. twenty-five female canaries were assigned to three experimental groups; in the first group, the females were allowed to he ... | 2004 | 15302260 |
| birdsong and singing behavior. | birdsong provides neuroscientists with a uniquely powerful model for studying imitative vocal learning in a system where the brain structures responsible for song learning and production are well known. the 4,500+ species of songbirds provide a remarkable diversity of songs with a variety of tonal, structural, and learning characteristics, but most studies of the neural bases of learning have concentrated on two domesticated species, the canary and the zebra finch. important differences in the s ... | 2004 | 15313767 |
| high-tech coal mine canary. | 2004 | 15314678 | |
| inhibition of plasma butyrylcholinesterase activity in the lizard gallotia galloti palmae by pesticides: a field study. | a field study was performed to evaluate the effect of exposure to organophosphorus (op) and carbamate (cb) pesticides on the lizard gallotia galloti palmae. butyrylcholinesterase (bche) activity was measured in the plasma of 420 lizards collected from agricultural and reference areas on the island of la palma (canary islands, spain) in two sampling periods. exposure to cholinesterase-inhibiting pesticides was evaluated by a statistical criterion based on a threshold value (two standard deviation ... | 2004 | 15325464 |
| strong phylogeographic relationships among three goat breeds from the canary islands. | we partially sequenced the mitochondrial d-loop region in 47 individuals from eleven spanish and foreign goat breeds. phylogenetic analysis of these sequences allowed us to identify a particular d-loop haplotype shared by individuals from the palmera, majorera and tinerfeña canarian breeds. genotyping of 281 goats from 17 different breeds by pcr-hpall rflp evidenced that the geographical distribution of this haplotype is restricted to the canary islands. this ancestral mitochondrial haplotype mi ... | 2004 | 15354570 |
| digestive pathology of sea turtles stranded in the canary islands between 1993 and 2001. | digestive lesions were observed in 84 of 136 sea turtles (128 caretta caretta, four chelonia mydas and four dermochelys coriacea) stranded in the canary islands between january 1993 and december 2001. in the oral cavity ulcerative and necropurulent stomatitis were the most frequently observed lesions, and in the oesophagus ulcerative and fibrinous oesophagitis, and traumatic oesophageal perforation were most frequently observed; all these lesions were mainly associated with the ingestion of fish ... | 2004 | 15357377 |
| avian pox in white-tailed laurel-pigeons from the canary islands. | two diseased young white-tailed laurel-pigeons (columba junoniae), an endemic and endangered species of the canary islands (spain), were found in la palma. they were very depressed and had severe cutaneous yellowish nodular lesions in feathered and unfeathered areas on the bodies of both birds. necropsy and histopathologic analyses were conducted. the presence of epidermal hypertrophy and hyperplasia in cutaneous lesions, as well as several acidophilic intracytoplasmic inclusions in affected epi ... | 2004 | 15362841 |
| genetic structure, phylogeography and demography of two ground-beetle species endemic to the tenerife laurel forest (canary islands). | the volcanic island of tenerife (canary archipelago) was formerly covered at 600-1200 m above sea level on most of its northern side by a cloud forest holding much of the endemic insect fauna. in the most significant surviving patches of this laurel forest at the eastern and western tips of the island occur two forest-specialist, closely related species of eutrichopus (coleoptera, carabidae); here we present data on mitochondrial dna variation among populations of these species. in total, 116 in ... | 2004 | 15367128 |
| radon exposure in uranium mining industry vs. exposure in tourist caves. | there is a fairly general consensus among health physicists and radiation professionals that exposure to radon progeny is the largest and most variable contribution to the population's exposure to natural sources of radiation. however, this exposure is the subject of continuing debate concerning the validity of risk assessment and recommendations on how to act in radon-prone areas. the purpose of this contribution is to situate the radon issue in spain in two very different settings. the first i ... | 2004 | 15367766 |
| space use optimisation and sustainability-environmental comparison of international cases. | as a follow-up to our first paper in this journal, this paper discusses projects involving intensive and multiple use of space recently completed or still being developed around railway stations in london (broadgate and canary wharf), paris (seine rive gauche and la défense) and amsterdam (zuidas and bijlmer). the cases were compared on the basis of spatial, functional and environmental indicators, as treated in our first paper. the environmental performance of each of the cases was determined t ... | 2004 | 15380314 |
| heavy metals in the coastal environment of las galletas, tenerife, canary islands, spain. | 2004 | 15386075 | |
| [trends in mortality and years of life lost related to alcohol in the canary islands, spain [1980-1998]]. | the aim of this article was to describe death rates and years of life lost prematurely (yllp) in relation to alcohol consumption in the canary islands. the study covered the period between 1980 and 1998. | 2003 | 14670253 |
| [childhood and adolescent obesity in spain. results of the enkid study (1998-2000)]. | obesity is a chronic disease with a complex multifactorial nature which typically begins during childhood and adolescence. it represents one of today's most critical and escalating public health concerns for this segment of the population. the lack of obesity prevalence data at national level prompted the enkid study (1998-2000), which was designed to evaluate the food habits and nutritional status of spanish children and youth. | 2003 | 14678693 |
| radiation, diversity, and host-plant interactions among island and continental legume-feeding psyllids. | island archipelagos and insect-plant associations have both independently provided many useful systems for evolutionary study. the arytainine psyllid (sternorrhyncha: hemiptera) radiation on broom (fabaceae: genisteae) in the canary island archipelago provides a discrete system for examining the speciation of highly host-specific phytophagous insects in an island context. phylogenetic reconstructions based on three datasets (adult and nymph morphological characters, and two mitochondrial dna reg ... | 2003 | 14686530 |
| epidemiology of methicillin-resistant staphylococcus aureus at a university hospital in the canary islands. | to describe the epidemiology of methicillin-resistant staphylococcus aureus (mrsa) at a university hospital in tenerife, canary islands, during a 40-month period and to evaluate the effectiveness of the application of control measures. | 2003 | 14510249 |
| mitochondrial portraits of the madeira and açores archipelagos witness different genetic pools of its settlers. | we have studied the matrilineal genetic composition of the madeira and açores north atlantic archipelagos, which were settled by the portuguese in the 15th century. both archipelagos, and particularly madeira, were involved in a complex commercial network established by the portuguese, which included the trading of slaves across the atlantic. one hundred and fifty-five mtdnas sampled from the madeira and 179 from the açores archipelagos were analysed for the hypervariable segment i (hvs-i), and ... | 2003 | 14513360 |
| analysis by gas chromatography-mass spectrometry of the essential oil from the aerial parts of pimpinella junoniae ceb. & ort., gathered in la gomera, canary islands, spain. | the essential oil from the aerial parts of pimpinella junoniae ceb. & ort., growing in la gomera, canary islands, spain, was studied by gas chromatography and gas chromatography-mass spectrometry, and 43 constituents were identified. the major components were found to be alpha-zingiberene (20.6%), alpha-pinene (17.9%), (e)-beta-farnesene (9.3%), ar-curcumene (7.4%), beta-phellandrene (7.0%), beta-bisabolene (6.1%) and epoxypseudoisoeugenyl 2-methylbutyrate (6.0%). the decomposition product of ep ... | 2003 | 14518782 |
| [trends in mortality from ischemic heart disease in 50 spanish provinces]. | ischemic heart disease is the leading cause of cardiovascular mortality and the second most frequent cause in women in spain. it is responsible for 12% and 10%, respectively, of all-cause mortality. our aim was to identify those provinces where recent trends differ significantly from the overall national pattern of decreasing rates in recent years, and where intervention is probably needed. | 2003 | 14519271 |
| contribution of collagen stable isotope biogeochemistry to the paleobiology of extinct endemic vertebrates from tenerife (canary islands, spain). | the paleodiet and paleoenvironmental context of two extinct species from tenerife island, one giant rat canariomys bravoi and one giant lizard gallotia goliath, have been investigated using carbon and nitrogen isotopic compositions of fossil bone collagen. preliminary to this study, a calibration of the isotopic variations of bone collagen from modern rat rattus rattus, rabbit oryctolagus cuniculus and lizard gallotia galotti relative to environmental conditions on tenerife islands has been atte ... | 2003 | 14521281 |
| complex population genetic structure in the endemic canary island pine revealed using chloroplast microsatellite markers. | the canary archipelago, located on the northwestern atlantic coast of africa, is comprised of seven islands aligned from east to west, plus seven minor islets. all the islands were formed by volcanic eruptions and their geological history is well documented providing a historical framework to study colonization events. the canary island pine ( pinus canariensis c. sm.), nowadays restricted to the westernmost canary islands (gran canaria, tenerife, la gomera, la palma and el hierro), is considere ... | 2003 | 14523525 |
| mitochondrial dna transit between west asia and north africa inferred from u6 phylogeography. | world-wide phylogeographic distribution of human complete mitochondrial dna sequences suggested a west asian origin for the autochthonous north african lineage u6. we report here a more detailed analysis of this lineage, unraveling successive expansions that affected not only africa but neighboring regions such as the near east, the iberian peninsula and the canary islands. | 2003 | 14563219 |
| a weevil pollinating the canary islands date palm: between parasitism and mutualism. | palm pollination systems are highly diverse, including by wind and by several different groups of insects. many palm species are associated with more or less specific pollinating weevils that are also floral herbivores. for many such palms, the importance of these "palm flower weevils" as pollinators has not been examined. here we describe a new ex situ method of demonstrating insect pollination when pollinator exclusion is not possible. we show that neoderelomus piriformis beetles carry pollen ... | 2003 | 14564403 |
| assessment of the dq heterodimer test in the diagnosis of celiac disease in the canary islands (spain). | celiac disease is a multifactorial disorder of the proximal small intestine associated with a permanent intolerance to gluten. the hla-dq(alpha1*0501, beta1*02) heterodimer is strongly associated with this disease. | 2003 | 14581805 |
| helminths of the wild rabbit (oryctolagus cuniculus) in macaronesia. | two hundred and four rabbits from 8 macaronesian islands (pico, san jorge, san miguel, terceira, and flores from azores archipelago; tenerife and alegranza from canary islands; and madeira from madeira archipelago) were examined for helminth parasites between 1995 and 2000. three species of cestodes, taenia pisiformis (larvae), andrya cuniculi, and mosgovoyia ctenoides, and 5 species of nematodes, trichuris leporis, graphidium strigosum, trichostrongylus retortaeformis, passalurus ambiguus, and ... | 2003 | 14627142 |
| parasitic helminths of the wild rabbit, oryctolagus cuniculus, in different bioclimatic zones in tenerife, canary islands. | faunistic and ecological analyses of the wild rabbit helminth fauna were undertaken in tenerife island (canary islands). rabbits were collected between 1998 and 2000 in seven bioclimatic zones in tenerife selected by orientation and altitude. five parasite species were identified, three cestodes (taenia pisiformis (larvae), andrya cuniculi and mosgovoyia ctenoides) and two nematodes (trichostrongylus retortaeformis and passalurus ambiguus). taenia pisiformis presented an irregular distribution w ... | 2003 | 14627446 |
| pythium regulare sp. nov., isolated from the canary islands, its taxonomy, its region of rdna, and comparison with related species. | pythium regulare (ci-34) was isolated from some soil samples taken in the canary islands (spain). this new species is very closely related to p. irregulare isolated from pea roots in the netherlands by buisman in 1927. the species of pythium are members of the kingdom chromista. pythium regulare is characterized by its ornamented oogonia bearing blunt or digitate spines, and its non-sporulating type of sporangia or hyphal bodies, its aplerotic oospores, its monoclinous and diclinous antheridia t ... | 2003 | 14629012 |
| [murine typhus in tenerife. clinicoepidemiological study and differential clinical features with q fever]. | our aim was to conduct a study to define the clinical and epidemiological characteristics of patients with murine typhus in tenerife island (canary islands, spain). moreover, we investigated the differential clinical features of this disease with regard to q fever. | 2003 | 14636536 |
| phylogeography of pipistrelle-like bats within the canary islands, based on mtdna sequences. | evolution of three canary island vespertilionid bat species, pipistrellus kuhlii, pipistrellus maderensis, and hypsugo savii was studied by comparison of approximately 1 kbp of mtdna (from cytochrome b and 16s rrna genes) between islands. mtdna reveals that both p. kuhlii and p. maderensis exist in sympatry on tenerife (and possibly other islands). their morphological similarity explains why their co-occurrence had not been detected previously. levels of sequence divergence are quite low within ... | 2003 | 12470938 |
| mitochondrial dna phylogeography and population history of meladema diving beetles on the atlantic islands and in the mediterranean basin (coleoptera, dytiscidae). | the phylogeny and population history of meladema diving beetles (coleoptera, dytiscidae) were examined using mitochondrial dna sequence from 16s ribosomal rna and cytochrome oxidase i genes in 51 individuals from 22 populations of the three extant species (m. imbricata endemic to the western canary islands, m. lanio endemic to madeira and m. coriacea widespread in the western mediterranean and on the western canaries), using a combination of phylogenetic and nested clade analyses. four main line ... | 2003 | 12492885 |
| seasonal regulation of nmda receptor nr2b mrna in the adult canary song system. | developmental changes in the composition and function of n-methyl-d-aspartate receptors (nmdars) are believed to regulate neural plasticity. for example, in songbirds, vocal learning entails nmdar activation, and the sensitive period for such learning in zebra finches (zfs) parallels developmental changes in nmdar density and phenotype within several song-related brain regions. in contrast to zfs, canaries exhibit vocal plasticity recurrently throughout adulthood, prompted by seasonal changes in ... | 2003 | 12555271 |
| evaluating reptile exposure to cholinesterase-inhibiting agrochemicals by serum butyrylcholinesterase activity. | blood samples from lizards (gallotia galloti) collected from two agricultural areas (las galletas and punta del hidalgo) and two reference areas on the island of tenerife (canary islands, spain) were analyzed for butyrylcholinesterase (bche) activity. serum bche activity was characterized first by in vitro experiments using selective substrates and inhibitors. of the total cholinesterase (che) activity, 74% could be attributed to bche activity. this portion of the total che activity was inhibite ... | 2003 | 12558160 |
| analysis by gas chromatography-mass spectrometry of the essential oils from the aerial parts of rutheopsis herbanica (bolle) hans. & kunk., gathered in fuerteventura (canary islands). | the essential oil from the aerial parts of rutheopsis herbanica (bolle) hans. & kunk., growing in fuerteventura, canary islands, spain, was studied by gas chromatography and gas chromatography-mass spectrometry, and 42 constituents were identified. the major components were found to be alpha-pinene (29.4%), dillapiole (21.3%), limonene (14.1%), beta-pinene (13.2%) and myristicin (10.0%). as far as we know, this is the first report on the essential oil composition of this species. | 2003 | 12564686 |
| flexible reproduction in wild canaries is independent of photoperiod. | in temperate zone species, timing of the breeding season is determined by the minimum photoperiod or "critical day length" and the development of photorefractoriness. the integration of environmental cues like food, temperature, rainfall, and behavioural interactions determines the breeding window. however, there are a number of examples for breeding activities outside this time window. here we investigated the possible mechanisms for early seasonal breeding activities in a population of wild ca ... | 2003 | 12568786 |
| [prevalence of the metabolic syndrome in the population of canary islands, spain]. | the program for the detection of high blood cholesterol in adults (atp iii) has recently published diagnostic criteria for the metabolic syndrome. its prevalence in the canarian population is reported here. | 2003 | 12605823 |
| 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 |
| analysis of arsenic, lead and cadmium in wines from the canary islands, spain, by icp/ms. | because of their high toxicity, arsenic, lead and cadmium need to be quantified in food and beverages. for the first time, in this study the content of arsenic, lead and cadmium was investigated in 152 wine samples from the canary islands, spain, belonging to eight denominations of origin (do) and four islands by inductively coupled plasma mass spectrometry (icp-ms). the ranges of concentration found were 0.58-8.45 microg l(-1) for arsenic, 0.20-1.73 microg l(-1) for cadmium and 3.89-159.5 micro ... | 2003 | 12623662 |
| nobel prize winner trading card (circa 1952). elie metchnikoff. | russian doctor and bacteriologist, born in ivanowca in 1845. he began his studies in kharkov, continuing them at the universities of giessen, gothingen, and munich, later being named professor of zoology in odessa in 1870. in the canary islands, he completed some anthropological works, but dedicated himself especially to studies of marine fauna. in 1887, much taken by the work of pasteur, he wrote to him asking for a position in his laboratories; in a short time he became one of the principal co ... | 2003 | 12650160 |
| photoperiodic response of the hypothalamo-pituitary-gonad axis in male and female canaries, serinus canaria. | although the gonadal photoperiodic response and its influence upon the song control system in canaries have been extensively studied, photoperiodic regulation of the gnrh system has not been investigated. to examine the relationship between photoperiod and the reproductive neuroendocrine system in male and female canaries, three groups of canaries were exposed to chronic short days (8l:16d; phsens), acute long days (18l:6d; phstim) and chronic long days (also 18l:6d; phrefr) to induce the reprod ... | 2003 | 12658720 |
| [in memoriam of dr. josé miguel juan togores: the history of neurology in the canary islands]. | 2003 | 12666054 | |
| benzodiazepines: more "behavioural" addiction than dependence. | to estimate the prevalence, characteristics and risk factors associated with the development of benzodiazepine dependence in the users of these active ingredients. | 2003 | 12669174 |
| mannose binding lectin polymorphisms as a disease-modulating factor in women with systemic lupus erythematosus from canary islands, spain. | to determine whether mannose binding lectin (mbl) polymorphisms are associated with clinical characteristics and with susceptibility to systemic lupus erythematosus (sle) in women from the canary islands, spain. | 2003 | 12672193 |
| a predominant european ancestry of paternal lineages from canary islanders. | we genotyped 24 biallelic sites and 5 microsatellites from the non-recombining portion of the y chromosome in 652 males from the canary islands. the results indicate that, contrary to mtdna data, paternal lineages of the current population are overwhelmingly (>90%) of european origin, arguing for a highly asymmetric pattern of mating after european occupation. however, the presence of lineages of indisputable african assignation demonstrates that an aboriginal background still persists (<10%). o ... | 2003 | 12675689 |
| [utility of congenital hypothyroidism screening in neonates for monitoring iodine deficit disorders in the canary islands (spain)]. | newborns in european cities where iodine intake is low have been demonstrated to present high frequencies of transitory hypothyroidism. because the neonatal period is critical for cerebral development, this is a cause for concern. published studies (who/unicef/iccidd) indicate that neonates with a thyroid-stimulating hormone (tsh) concentration of more than 5 mu/ml revealed by screening for congenital hypothyroidism present mild iodine deficiency. | 2003 | 12681185 |
| intraspecific evolution of canary island plecotine bats, based on mtdna sequences. | island differentiation and relationships with congenerics were investigated in the endemic canary island bat plecotus teneriffae, based on approximately 1 kb of mtdna from the 16s rrna and cytochrome b genes. p. teneriffae had closer affinities with p. austriacus than with p. auritus. levels of differentiation between canary islands were quite high relative to pipistrelle-like bats, consistent with philopatric behaviour in the plecotus genus. cladogenesis within p. teneriffae appears to have occ ... | 2003 | 12692583 |
| taxonomic status and origin of the shrews (soricidae) from the canary islands inferred from a mtdna comparison with the european crocidura species. | european island shrews are either relicts of the endemic pleistocene fauna, e.g.,. crocidura zimmermanni, or were introduced from continental source populations. in order to clarify the taxonomic status and the origin of the two shrew species from the canary islands, a 981bp fragment of cytochrome b gene was investigated in all european crocidura species and compared with the canary shrew (crocidura canariensis) and the osorio shrew (crocidura osorio). the first shares its karyotype with the sic ... | 2003 | 12695091 |
| first epidemic of aseptic meningitis due to echovirus type 13 among spanish children. | echoviruses are the commonest cause of aseptic meningitis (am). echovirus type 13 (ev-13) was the second enterovirus serotype associated with different local outbreaks of am in spain between february and october 2000. it was the first time that an epidemic am caused by this virus was recognized in spain. the index case appeared in the canary islands (canarias). the ev-13 virus was isolated from 135 patients, predominantly from cerebrospinal fluid (csf). all isolates were from children under 13 y ... | 2003 | 12729193 |
| [cost analysis and potential savings related to the use of preoperative tests in the hospitals of the canary islands [spain]]. | to estimate the potential cost savings that might take place in the canary islands health service (chs) through the appropriate scientific use of preoperative tests, using information obtained from five public university hospitals. | 2003 | 12729540 |
| [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 |
| diversification of sympatric sapromyza (diptera: lauxaniidae) from madeira: six morphological species but only four mtdna lineages. | a series of recent studies on speciation of insects within the canary islands have indicated considerable within-island diversification, similar to that described in the hawaiian islands. little work has yet been carried out on the neighboring madeiran archipelago, which is also volcanic. this study examines relationships among all known lauxaniid flies of the genus sapromyza from madeira (including six newly described morphological species) based on mitochondrial gene trees constructed from cyt ... | 2003 | 12742747 |
| impact odorants of different young white wines from the canary islands. | five young monovarietal white wines from the canary islands made from gual, verdello, marmajuelo, white listán, and malvasia grape cultivars were studied to determine the characteristics of their most important aromas and the differences among them. the study was carried out using gas chromatography-olfactometry (gc-o) to detect the potentially most important aroma compounds, which were then analyzed quantitatively by gas chromatography-flame ionization detection and gas chromatography-mass spec ... | 2003 | 12744677 |
| primary hyperoxaluria type 1 in the canary islands: a conformational disease due to i244t mutation in the p11l-containing alanine:glyoxylate aminotransferase. | primary hyperoxaluria type 1 (ph1) is an inborn error of metabolism resulting from a deficiency of alanine:glyoxylate aminotransferase (agxt; ec 2.6.1.44). most of the ph1 alleles detected in the canary islands carry the ile-244 --> thr (i244t) mutation in the agxt gene, with 14 of 16 patients homozygous for this mutation. four polymorphisms within agxt and regional microsatellites also were shared in their haplotypes (agxt*ltm), consistent with a founder effect. the consequences of these amino ... | 2003 | 12777626 |
| seroprevalence of infection by coxiella burnetii in canary islands (spain). | the aims of our study were: (i) to know the seroprevalence of coxiella burnetii infection in the canary islands, (ii) to evaluate its epidemiologic features and (iii) to compare the rates of seroprevalence using two different cut-offs (1:20 and 1:80) for the diagnosis of past infection. | 2003 | 12800952 |
| hiv-positive immigrants in the canary islands, spain: implications for public health in europe. | the canary islands face the northwest coast of africa and belong administratively to spain. they represent a frequent step for the entrance of africans into spain and, from there, to all the european union. the presence of hiv-1 non-b variants has already been reported in spain and other european countries, mostly among african immigrants. | 2003 | 12815558 |
| nuclear dna amounts in macaronesian angiosperms. | nuclear dna contents for 104 macaronesian angiosperms, with particular attention on canary islands endemics, were analysed using propidium iodide flow cytometry. prime estimates for more than one-sixth of the whole canarian endemic flora (including representatives of 11 endemic genera) were obtained. the resulting 1c dna values ranged from 0.19 to 7.21 pg for descurainia bourgeauana and argyranthemum frutescens, respectively (about 38-fold difference). the majority of species, however, possessed ... | 2003 | 12824074 |
| [socioeconomic costs of cardiovascular disease and cancer in the canary islands (spain) in 1998]. | to evaluate the economic impact in terms of direct and indirect costs of the cardiovascular disease and cancer in the canary islands in 1998. | 2003 | 12841983 |
| application of multivariate analysis and artificial neural networks for the differentiation of red wines from the canary islands according to the island of origin. | eleven metals (k, na, ca, mg, fe, cu, zn, mn, sr, li, and rb) were determined in 83 red wines from the canary islands. the wines presented high concentrations of na, and the concentrations of cu and zn were much lower than the maximum concentrations established by the international office of vine and wine (oiv). applying principal component analysis, the dimension space was reduced to five principal components that explain 76.4% of the total variance, and the wines tend to separate on the basis ... | 2003 | 12848502 |
| phylogeography of the endangered darkling beetle species of pimelia endemic to gran canaria (canary islands). | phylogenetic and geographical nested clade analysis (nca) methods were applied to mitochondrial dna sequences of pimelia darkling beetles (coleoptera, tenebrionidae) endemic to gran canaria, an island in the canary archipelago. the three species p. granulicollis, p. estevezi and p. sparsa occur on the island, the latter with three recognized subspecies. another species, p. fernandezlopezi (endemic to the island of la gomera) is a close relative of p. granulicollis based on partial cytochrome oxi ... | 2003 | 12859634 |
| skin tests and conjunctival and bronchial challenges with extracts of blomia tropicalis and dermatophagoides pteronyssinus in patients with allergic asthma and/or rhinoconjunctivitis. | blomia tropicalis and dermatophagoides pteronyssinus are important mite species in tenerife, canary islands, spain. several studies have demonstrated a variable degree of allergenic cross-reactivity in vitro. however, only a few have addressed their allergenic cross-reactivity using challenge tests. | 2003 | 12876408 |
| the canary is dead. | 2003 | 12911369 | |
| effects of unilateral lesions of hvc on song patterns of male domesticated canaries. | bird song is a model for studying neural control and lateralization of a learned behavior. adult male canary develops large and varied song repertoires. particular features of the male are well known to stimulate the reproductive activities of the female. we report here on the effect of lesions of either the left or right hvc, a key nucleus of the descending vocal control network of songbirds, on different song parameters of common domesticated male canaries of an european outbred strain. these ... | 2003 | 12918015 |
| nontraditional nutrition education interventions: the radio ecca method. | to evaluate a nutrition education intervention using a radio programme in the canary islands. | 2003 | 12947463 |
| telepsychiatry in the canary islands: user acceptance and satisfaction. | a telepsychiatry service, using isdn videoconferencing, was established to provide psychiatric consultations for the population of el hierro, the most westerly of the canary islands. during the first year of routine operation, a total of 40 patients had 40 initial and 126 follow-up teleconsultations. the main reason for the consultation identified in the general practitioner's referral form was to establish a diagnosis (60% of patients); the second most common reason was the management of a pati ... | 2003 | 12952693 |
| canada: courageous canary. | 2003 | 12958374 | |
| molecular analysis of echovirus 13 isolates and aseptic meningitis, spain. | echovirus 13 (ev13), considered rare, was reported worldwide in 2000, mostly related to aseptic meningitis outbreaks. in spain, 135 ev13 isolates were identified. the genetic relationships between 64 representative strains from spain and other reported isolates from the united states, germany, italy, japan, and sweden were described by analyzing the partial sequence of the major capsid protein (vp1) gene. the strains from spain were clearly identified as ev13 (79.5% similarity with the ev13 refe ... | 2003 | 12967490 |