Publications
| Title | Abstract | Year Filter | PMID(sorted descending) Filter |
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| seasonal expression of androgen receptors, estrogen receptors, and aromatase in the canary brain in relation to circulating androgens and estrogens. | songbirds have a complex neural network for learning and production of song, namely the neural song system. several nuclei of the song system contain androgen receptors (ar), and the neostriatal nucleus hvc also contains alpha type estrogen receptors (er). many songbird species show seasonal changes in both song and the neural song system that are correlated with seasonal variations in the circulating levels of gonadal steroids. however, there is increasing evidence that the sensitivity of the s ... | 2000 | 10842238 |
| a study on ten short tandem repeat systems: african immigrant and spanish population data. | this work presents the results obtained from a genetic-population study for the d1s1656 system in the population of southwest spain (huelva, cádiz and sevilla), spaniards of caucasian origin from north africa (ceuta), as well as in the black central west african and moroccan immigrant populations in spain. the results of a study of the autochtonous population of the canary islands (n=138), and immigrant central west african populations in spain (n=132), obtained for nine short tandem repeat (str ... | 2000 | 10842028 |
| helicopter emergency medical service in canary islands, spain. | this is a report on our first 2 years' experience of operating a helicopter emergency medical service in the canary islands, spain. the two advanced life-support helicopters are staffed full time by a physician and a nurse. for the transport protocol, inter-hospital transport patients (secondary missions) were classified into three groups: group a, minor illnesses or injuries; group b, modified or middle critical condition; and group c, critical condition. on-scene patients (primary missions) we ... | 2000 | 10839381 |
| victims of violence in an emergency department. | the aim of this study was to identify the risk profile of the victims of violent accidents. during 1997, we studied 1100 patients suffering from injuries produced by violent actions and treated in the emergency department of the largest teaching hospital in the canary islands, spain. seventy per cent of the patients were male and 30% were female. the mean age was 28 and 30 years, respectively. in the distribution by age, the main group was that between 18 and 36 years. seventy-five per cent of v ... | 2000 | 10839379 |
| camel trypanosomosis in the canary islands: assessment of seroprevalence and infection rates using the card agglutination test (catt/t. evansi) and parasite detection tests. | trypanosomosis due to trypanosoma evansi (surra) is a major enzootic disease of the dromedary camel. thus, the purpose of the present study was to assess seroprevalence and infection rates in the canary islands using antibody(-card agglutination test-catt/t. evansi) and parasite detection tests (micro-haematocrit centrifugation technique, giemsa stained blood smears, microscopic examination of lymph node aspirates and mouse inoculation). pcv was also determined. 745 dromedary camels (483 females ... | 2000 | 10828522 |
| long-distance colonization and radiation in gekkonid lizards, tarentola (reptilia: gekkonidae), revealed by mitochondrial dna sequences. | morphological systematics makes it clear that many non-volant animal groups have undergone extensive transmarine dispersal with subsequent radiation in new, often island, areas. however, details of such events are often lacking. here we use partial dna sequences derived from the mitochondrial cytochrome b and 12s rrna genes (up to 684 and 320 bp, respectively) to trace migration and speciation in tarentola geckos, a primarily north african clade which has invaded many of the warmer islands in th ... | 2000 | 10821607 |
| management of cold agglutination syndrome. | cold haemagglutination syndrome is difficult to treat. fortunately it seldom needs treating. in most cases cold agglutinins are an incidental finding representing either normality or a benign chronic monoclonal gammopathy that does not cause ill health. two sorts of symptoms are likely in the more severe cases. acrocyanosis is usually treated by keeping the patient warm and if necessary removing him or her to florida or the canary islands. in the rare cases of haemolytic anaemia, an underlying l ... | 2000 | 10771400 |
| separation of polyphenols in canary islands wine by capillary zone electrophoresis without preconcentration. | a method for separation and determination of polyphenols in wine by capillary zone electrophoresis (cze) without any preconcentration step is described. the sensitivity and limits of detection for gentisic and p-coumaric acid are better than those previously published. the effect of a possible c18 solid-phase extraction prior to the cze analysis was examined. the developed optimized method (without any extraction step) was applied to the analysis of wines from tenerife, canary islands. | 2000 | 10768505 |
| high density lipoprotein cholesterol increases with living altitude. | the relationship between high density lipoprotein cholesterol (hdl) serum level and the altitude at which people live is controversial. | 2000 | 10750605 |
| neither endocochlear potential nor tegmentum vasculosum are affected in hearing impaired belgian waterslager canaries. | we previously showed that the belgian waterslager canary strain is affected by a hereditary hearing loss that is associated with a reduced number of hair cells and hair cell pathologies in the basilar papilla. since hair cell pathologies were also present in the sacculus, weisleder et al. (1994) suggested that these birds are afflicted by scheibe's like dysplasia, a cochleo-saccular defect. in mammals, cochleo-saccular defects are characterized primarily by the lack of an endocochlear potential ... | 2000 | 10748328 |
| sex determination by discriminant function analysis of the right tibia in the prehispanic population of the canary islands. | this study has been performed in order to define standards usable to determine the sex of prehispanic individuals from the canary islands from their skeletal remains. osteometric information at the right tibia was obtained from 59 complete skeletons from gran canaria, housed in the museo canario (las palmas), 45 males and 14 females (this constitutes the totality of complete prehispanic skeletons known from gran canaria). the parameters measured were: tibial length, proximal and distal epiphysea ... | 2000 | 10737463 |
| phylogeographic patterns of mtdna reflecting the colonization of the canary islands. | although the canary islands were settled by humans, possibly of berber origin, as late as 2500 years ago, the precise course and numbers of early migrations to the archipelago remain controversial. we have therefore analysed mtdna variation (hvs-i as well as selected rflp sites) in 300 individuals from the seven canary islands. the distribution and variation across the islands in a specific mtdna clade of northwest african ancestry suggest that there was one dominant initial settlement process t ... | 1999 | 10735583 |
| the severity of dependence scale (sds) as screening test for benzodiazepine dependence: sds validation study. | to assess the validity of the severity of dependence scale (sds) as a screening test to detect benzodiazepine dependence in regular benzodiazepine users. | 2000 | 10723853 |
| aminoglycoside resistance mechanisms in clinical isolates of pseudomonas aeruginosa from the canary islands. | strains of pseudomonas aeruginosa resistant to aminoglycoside antibiotics were selected from 152 clinical isolates. we identified two patterns of resistance correlating with the resistance mechanism characterized by changes in permeability, enzymatic modification due to the acetylating enzyme, aac(6')-ii, or a combination of both. we detected enzymatic activity of the phosphorylase enzyme, aph(3'), in all the isolates. we compared the mechanisms of resistance detected by three methods i.e., radi ... | 2000 | 10705613 |
| the canary in the cell: a sentinel role for beta-carotene. | 2000 | 10702599 | |
| cereal aversion in behaviourally resistant house mice in birmingham, uk. | in 1986, house mice in a small defined area of inner birmingham were reported as not taking a variety of rodenticides from bait containers, a phenomenon labelled 'behavioural resistance'. this study investigated behavioural resistance by comparing the food preferences of west midlands behaviourally resistant (wmbr) mice with those of normal (bc) mice. nine bait boxes each containing one of nine different foods (cheese, chicken, tuna fish, peanut butter, canary seed, cat stars, wheat, pcd (mod) p ... | 2000 | 10700630 |
| large scale population structure and gene flow in the planktonic developing periwinkle, littorina striata, in macaronesia (mollusca: gastropoda). | allozymes were used to investigate the genetic structure of 42 populations of the planktonic developing, macaronesian periwinkle littorina striata, throughout its entire geographic range (azores, madeira, canary islands and cape verde islands). this periwinkle is presumed to have a high dispersal and gene flow potential, because it has a planktonic development. it is therefore expected to show little population genetic differentiation. indeed, based on wright's hierarchical f-statistics, no sign ... | 2000 | 10699219 |
| study of primary drug resistance of mycobacterium tuberculosis from two hospitals in tenerife, canary islands, spain (1990-1997) | 2000 | 10694101 | |
| [the social and health variables associated with the self-perception of the health status of the adult population of gran canaria (canary islands)]. | to find out how the adult population in one municipality of the canary islands perceives its state of health, and how this is related to social and health variables. | 1999 | 10687222 |
| [the perceptions of the adult spanish population of the factors determinative of health]. | to assess which are the most important perceived influential factors on health among the spanish adult population. this may provide sufficient information to promote primary health care campaigns directed specifically to those that acknowledge that lifestyles are important in spite of not living healthy lifestyles themselves. | 1999 | 10687219 |
| killer activity at different phs against cryptococcus neoformans var. neoformans serotype a by environmental yeast isolates. | yeast isolates that share the same habitats as cryptococcus neoformans var. neoformans serotype a in a restricted mediterranean area were assayed in order to verify their killer activity against cr. neoformans strains isolated from clinical and environmental sources. many of the environmental yeast isolates expressed the killer phenomenon against the assayed strains of cr. neoformans. two species of candida: candida parapsilosis and candida famata, and pichia carsonii, were the most active kille ... | 1999 | 10680435 |
| colonization and diversification: towards a phylogeographic synthesis for the canary islands. | recently, the canary islands have become a focus for studies of the colonization and the diversification of different organisms. some authors have considered canarian endemisms as relicts of tertiary origin, but new molecular data suggest a general pattern of continental dispersion followed by in situ speciation. recent phylogeographic studies are revealing variants of the simple stepping-stone colonization model that seems to hold for many hawaiian groups. many factors can generate deviations f ... | 2000 | 10675925 |
| the distribution of two different vitamin d receptor polymorphisms (bsmi and start codon) in primary hyperparathyroidism. | the bb genotype of the bsmi polymorphism of the vitamin d receptor (vdr) is more common in primary hyperparathyroidism (hpt) than in the general population in swedish and german women. however, little is known about the association of hpt with the start codon polymorphism of the vdr (defined by foki). | 2000 | 10672140 |
| studies on the energy content of pigeon feeds i. determination of digestibility and metabolizable energy content. | the digestibility coefficient and metabolizable energy (me) content of the most important pigeon feeds (corn, wheat, barley, red and white millet, sorghum, canary seed, peas, lentils, sunflower, and hemp) were determined. the experiment was carried out using 10 adult male homing pigeons. all feeds were fed alone, in a whole-grain form, ad libitum. drinking water and grit were offered to the birds on a continuous basis. each feedstuff was fed to five pigeons in 1-wk cycles. there was no significa ... | 1999 | 10626652 |
| lesions of the anterior forebrain song control pathway in female canaries affect song perception in an operant task. | we tested whether the avian anterior forebrain pathway functions in song perception in female canaries, and whether it is specialized for conspecific song perception or functions more generally in auditory perception. using operant conditioning methods, we trained female canaries to discriminate among synthetic sound stimuli, canary songs, and song sparrow songs. we also trained each bird to discriminate among visual stimuli to test for general effects of lesions on performance. when canaries ha ... | 2000 | 10623896 |
| chloroplast dna variation in dactylis glomerata l. taxa endemic to the macaronesian islands | in the dactylis glomerata infraspecific polyploid grass complex, restriction fragment length polymorphisms (rflps) of chloroplast dna (cpdna) were studied in diploid and tetraploid populations of several taxa endemic to macaronesia (madeira and the canary islands) and in populations from the african and european continental areas closest to macaronesia. two chlorotypes, which differed by a single 290-bp length mutation, were observed in the macaronesian and the continental populations. chlorotyp ... | 1999 | 10620224 |
| sensitization to local dust-mite fauna in singapore. | recent studies showed the presence of a unique dust-mite fauna in the indoor environment of singapore. immediate hypersensitivity to these dust mites, along with other known indoor allergens, may play a role in the pathogenesis of allergic respiratory diseases. this study evaluated the sensitization rates of the local atopic population to these allergens. | 1999 | 10604550 |
| developmental changes and among-sibling variation of corticosterone levels in an altricial avian species. | the postnatal development of the activity of the brain-pituitary-adrenal axis was investigated in an altricial bird species by measurements of plasma corticosterone levels in nestling and fledgling canaries, serinus canaria. corticosterone was detectable (>2.6 ng/ml) in 30% of 5-day-old, 67% of 10-day-old, 72% of 15-day-old, and 88% of 23-day-old birds. when detectable, the corticosterone levels of 5-day-old nestlings were comparable to the baseline levels of adult birds. levels were higher in 1 ... | 1999 | 10603278 |
| an international outbreak of vero cytotoxin-producing escherichia coli o157 infection amongst tourists; a challenge for the european infectious disease surveillance network. | in march 1997, an outbreak of vero cytotoxin-producing escherichia coli o157 (vtec) infection occurred amongst holidaymakers returning from fuerteventura, canary islands. for the investigation, a confirmed case was an individual staying in fuerteventura during march 1997, with either e. coli o157 vtec isolated in stool, hus or serological evidence of recent infection; a probable case was an individual with bloody diarrhoea without laboratory confirmation. local and europe-wide active case findin ... | 1999 | 10579440 |
| interpretation of analytical data on n-alkanes and polynuclear aromatic hydrocarbons in arbacia lixula from the coasts of tenerife (canary islands, spain) by multivariate data analysis. | the hydrocarbons contents (n-alkanes, polycyclic aromatic hydrocarbons) were determined in the sea urchin arbacia lixula. multivariate data analysis as principal component analysis, factor analysis and, cluster analysis were applied to elucidate sources of pollution. pca and fa were performed to establish the relationships between variables (hydrocarbons), samples (sea urchin) and sources of pollution. | 1999 | 10576098 |
| [adverse reactions and other drug-related problems in an emergency service department]. | adverse drug reactions (adr) and drug-related problems (drp's) are a frequency cause of hospital emergency room visits and require better assessment. | 1999 | 10575939 |
| effect of testosterone on the distribution of vasotocin immunoreactivity in the brain of the zebra finch, taeniopygia guttata castanotis. | the distribution of vasopressin or vasotocin immunoreactive cells and fibers in the lateral septum and the bed nucleus of the stria terminalis are sexually dimorphic in many vertebrates including several species of birds examined to date. we examined the vasotocin-like immunoreactivity in the zebra finch brain. male birds had a higher level of immunoreactive staining in some telencephalic and diencephalic regions. the density of immunostaining increased in the testosterone-treated females to lev ... | 1999 | 10573184 |
| polycyclic aromatic hydrocarbons and n-alkanes in the intertidal limpet patella crenata from the coast of tenerife, canary islands. | 1999 | 10541688 | |
| [a study of gobbi's syndrome in spanish population]. | the association of epilepsy, occipital cerebral calcifications and coeliac disease was recognized for the first time in 1992 by gobbi as an independent syndrome. he emphasized that it occurred almost exclusively in persons of italian origin. | 1999 | 10528319 |
| mtdna phylogeography and recent intra-island diversification among canary island calathus beetles. | the genus calathus bonelli comprises 24 species on the canary islands. sequences of 927 and 687 bp of the mitochondrial cytochrome oxidase i and ii genes, respectively, as well as the intervening trna leu gene in 21 of the 24 species, have identified three genetically divergent and unequivocally monophyletic groupings. a phylogeographic analysis is presented for the major monophyletic group comprising all the species of gran canaria, la gomera, and el hierro, and two tenerifean species. a distan ... | 1999 | 10508548 |
| allozyme differentiation in the cuttlefish sepia officinalis (mollusca: cephalopoda) from the ne atlantic and mediterranean. | the atlantic-mediterranean area has recently been proposed as a new phylogeographical area on the basis of concordance of genetic differentiation patterns observed in several marine species. however, additional taxa need to be studied to establish the phylogeographical relationship between the atlantic and mediterranean. eleven samples of the cuttlefish sepia officinalis around the iberian peninsula, one from the canary islands, and another from fiumicino (italy) were screened for 33 allozyme lo ... | 1999 | 10504425 |
| bone histology of prehistoric inhabitants of the canary islands: comparison between el hierro and gran canaria. | the trabecular bone mass (tbm) of the proximal epiphyses of right tibiae belonging to 273 prehispanic inhabitants of gran canaria (60. 81% males and 35.53% females) were assessed by histomorphometrical analysis of undecalcified samples and compared with that of 41 samples from el hierro (52.63% males and 47.37% females). among the prehispanic population of gran canaria 19.05% showed tbm values below 13.5% and 30.40% below 15%, although individual variability was high (range 6.71-35.4%). in sharp ... | 1999 | 10502243 |
| suspected blue canary grass (phalaris coerulescens) poisoning of horses. | 1999 | 10494401 | |
| visual pigments and oil droplets in the retina of a passerine bird, the canary serinus canaria: microspectrophotometry and opsin sequences. | the visual receptors of the passeriform bird serinus canaria, the canary, have been examined microspectrophotometrically and the sequences of the opsins determined. rods have a maximum absorbance (lambda max) at 506 nm. four spectral classes of single cone are present: long-wave-sensitive (lws) containing a photopigment with lambda max at 569 nm, middle-wave-sensitive (mws) with lambda max at 505 nm, short-wave-sensitive (sws) with lambda max at 442 nm, and ultraviolet-sensitive (uvs) with lambd ... | 1999 | 10492811 |
| [anti-tuberculosis drug consumption as an indicator of the epidemiological situation of tuberculosis in spain] | objectives: to describe anti-tuberculosis drug consumption in spain for the period, 1985-1995, compare the associated time trend and geographical pattern against case reports of tuberculosis (tb), and estimate the number of persons undergoing anti-tuberculosis therapy in 1995. methods: the official drug database was used to ascertain consumption of anti-tuberculosis drugs (isoniazid, rifampicin, pyrazinamide and ethambutol) in spain during the period, 1985-1995. the technical units of measuremen ... | 1999 | 10490666 |
| associative learning and stimulus novelty influence the song-induced expression of an immediate early gene in the canary forebrain. | to identify variables that affect immediate early gene (ieg) expression in the auditory telencephalon of songbirds, we developed a conditioning paradigm that trained adult male canaries to associate song with a mild shock. learning of the association was measured by a bird's fear and avoidance responses. birds exposed to paired song and shock were compared to yoked controls exposed to each stimulus alone or to both unpaired. additional groups examined the effects of attention and stress, and of ... | 1995 | 10467567 |
| are we able to interpret the different canary songs? | 1999 | 10456806 | |
| proceedings of the viiith international symposium on luminescence spectrometry in biomedical and environmental analysis--detection techniques and applications in chromatography and capillary electrophoresis. canary islands, spain, 26-29 may 1998. | 1998 | 10428731 | |
| fate of new neurons in adult canary high vocal center during the first 30 days after their formation. | projection neurons are added to the high vocal center (hvc) of adult songbirds. here we report on events associated with their initial arrival in hvc. neurons formed in adult canaries were labeled with [(3)h]-thymidine and examined 8, 15, 22, and 31 days later. by 8 days, some [(3)h]-labeled cells with the nuclear profile of postmigratory neurons were already present in hvc but could not be retrogradely labeled by fluoro-gold injections in the robust nucleus of the archistriatum (ra); 7 days lat ... | 1999 | 10413781 |
| population attitudes towards changing dietary habits and reliance on general practitioners in spain. | to investigate the relationship between population attitudes towards modifying food behaviour and reliance on general practitioners (gps) as nutrition educators. | 1999 | 10406439 |
| seasonal changes in astrocytes parallel neuronal plasticity in the song control area hvc of the canary. | in the song control area hvc of the canary, intercellular dye-coupling among astrocytes was studied by intracellular injection of neurobiotin into identified single astrocytes. injection of individual astrocytes into acute slices resulted in dye spread to neighboring astrocytes, covering a sphere of up to 1 mm in diameter. the astrocytic nature of the dye-coupled cells was verified by double labeling of neurobiotin-filled cells with antisera for the astrocytic filament proteins gfap or vimentin. ... | 1999 | 10401635 |
| viiith international symposium on luminescence spectrometry in biomedical and environmental analysis: detection techniques and applications in chromatography and capillary electrophoresis. canary islands, spain, 26-29 may 1998. extended abstracts. | 1999 | 10391702 | |
| environmental behavior of explosives in groundwater from the milan army ammunition plant in aquatic and wetland plant treatments. removal, mass balances and fate in groundwater of tnt and rdx. | phytoremediation of 2,4,6-trinitrotoluene (tnt) and hexahydro-1,3,5-trinitro-1,3,5-triazine (rdx) in groundwater using constructed wetlands is a potentially economical remediation alternative. to evaluate explosives removal and fate was evaluated using hydroponic batch incubations of plant and substrate treatments with explosives-contaminated groundwater amended with [u-14c]-tnt or [u-14c]-rdx. plants and substrates were collected from a small-scale wetland constructed for explosives removal, an ... | 1999 | 10390848 |
| concentrations of fluoride in wines from the canary islands. | potentiometry using an ion-selective electrode has widely been used for determining fluoride because of its simplicity and rapidity. the concentration of fluoride was determined (gran's method) in 70 wines from the main wine-producing regions of the canary islands. the mean concentration of fluoride in wines from a region with a high concentration of fluoride in drinking waters was significantly (p < 0.05) higher than those mean concentrations obtained in the remaining wines. non-important diffe ... | 1998 | 10366998 |
| avian species differences in susceptibility to noise exposure. | previous studies of hair cell regeneration and hearing recovery in birds after acoustic overstimulation have involved relatively few species. studies of the effects of acoustic overexposure typically report high variability. though it is impossible to tell, the data so far also suggest there may be considerable species differences in the degree of damage and the time course and extent of recovery. to examine this issue, we exposed four species of birds (quail, budgerigars, canaries, and zebra fi ... | 1999 | 10355606 |
| heart fatty acid unsaturation and lipid peroxidation, and aging rate, are lower in the canary and the parakeet than in the mouse. | despite their high metabolic rates, birds have a much higher maximum longevity (mlsp) than mammals of similar body size, and thus represent ideal models for identifying longevity characteristics not linked to low metabolic rates. this study shows that the fatty acid double bond content of both canary (mlsp = 24 years) and parakeet (mlsp = 21 years) hearts is intrinsically lower than in mouse (mlsp = 3.5 years) heart. this is caused by a redistribution between types of unsaturated fatty acids, ma ... | 1999 | 10337442 |
| the environment for telemedicine in the canary islands. | we studied the environment for telemedicine in the canary islands. the population's attitude to telemedicine was surveyed in 503 questionnaire interviews with doctors, nurses, paramedical staff and patients on the seven islands. almost half the respondents (46-50% across groups) had a positive opinion of telemedicine. we also collected data about telephone medicine. a total of 479 medical-support telephone calls were made to four doctors, in psychiatry, ophthalmology and paediatrics. the telepho ... | 1998 | 10321044 |
| an outbreak of tinea gladiatorum in lanzarote. | canary islands wrestling is a variant of the sport played exclusively in that region, and is associated with close participant contact. an outbreak of a fungal infection, so-called tinea gladiatorum, amongst such wrestlers in lanzarote, one island in the archipelago is now described. 102 wrestlers from the eight teams on the island were examined; some of the clubs are 50 km apart; 45 wrestlers (44.1% of those examined) were noted to be affected. to our knowledge, this is the largest reported ser ... | 1999 | 10233639 |
| nmr spectroscopic characterisation of oligosaccharides from two ulva rigida ulvan samples (ulvales, chlorophyta) degraded by a lyase. | the chemical structure and the sequence of repeating units in ulvans of similar compositions from two different ulva rigida samples collected in the canary islands and in brittany were studied after ulvan-lyase degradation and nmr spectroscopic analysis of the reaction products. both ulvans were composed of ulvanobiuronic acid 3-sulfate type a [-->4)-beta-d-glca-(1-->4)-alpha-l-rha 3-sulfate-(1-->] (symbolised as a3s) and contained disaccharides composed of [-->4)-beta-d-xyl-(1-->4)-alpha-l-rha ... | 1998 | 10230036 |
| description of alaeuris stehlini n. sp. and alaeuris numidica canariensis n. ssp. (nematoda, pharyngodonidae), parasite of gallotia stehlini, lacertid of grand canary island (spain). | pharyngodonid nematodes (oxyuroidea) belonging to the genus alaeuris thapar, 1925, were collected from the posterior gut of gallotia stehlini (lacertidae) from grand canary island. two species alaeuris stehlini n. sp. and alaeuris numidica canariensis n. ssp. were identified. the new species is described in which the long thin males are characterized by narrow caudal alae, a rounded first pair of adanal papillae non pedunculate, the second pair attached and elongate, the three pair teated; a sho ... | 1999 | 10229935 |
| serotyping of chlamydial clinical isolates from birds with monoclonal antibodies. | forty-nine avian chlamydial strains, isolated mainly from various regions in france and from different species of birds, were analyzed and tested with a panel of nine monoclonal antibodies (mabs) by the indirect microimmunofluorescence test (mif). the mabs included five serovar-specific mabs, three mabs raised against chlamydia psittaci and chlamydia pecorum ovine strains, and one genus-specific mab. of the 49 isolates, 41 came from parrots or budgerigars; the rest were from pigeons, a canary, a ... | 1999 | 10216756 |
| distribution of aromatase, estrogen receptor, and androgen receptor mrna in the forebrain of songbirds and nonsongbirds. | androgens and estrogens are crucial for the differentiation and function of the vocal control system of songbirds. a major source of estrogens in songbirds is the cerebral aromatization of circulating testosterone by aromatase (aro). in the vocal control system, songbirds have a unique estrogen receptor (er)-containing area, the nucleus hyperstriatalis ventrale pars caudale (hvc) of the caudal neostriatum. work in the zebra finch has demonstrated aro expression adjacent to but not in the hvc. co ... | 1999 | 10213192 |
| drugs which can induce earlier roosting in the self-selected circadian rhythm of the canary. | 1973 | 10189874 | |
| gastric tonometry: a new monitoring modality in the intensive care unit. | in many critically ill patients, systemic measures of hemodynamic and o2 transport variables may not be sufficiently sensitive to portray the complex interaction between energy requirements and energy supply in all tissues. gastric or intestinal tonometry has been proposed as a relative noninvasive index of the adequacy of aerobic metabolism in the gut mucosa, a tissue that is particularly vulnerable to alterations in perfusion and oxygenation. the gut mucosa lacks some of the microvascular cont ... | 1995 | 10155169 |
| levels of polychlorinated biphenyls in patella piperata from the coast of fuerteventura (canary islands, spain). | concentration of 51 pcb congeners were determined in the visceral mass of the endemic limpet patella piperata, sampled in four stations in the coast of fuerteventura (canary islands, spain) during 1991-1995, and evaluated in order to assess the origin of their contamination and the possibility of this limpet being used as a bioindicator organism for pcb contamination. pcb extracted from samples were fractionated on florisil columns and analysed by capillary gas chromatography with flame ionisati ... | 1999 | 10101867 |
| being well in an environmentally challenged world: canary or phoenix? | 1998 | 10095483 | |
| tobacco allergy: demonstration of cross-reactivity with other members of solanaceae family and mugwort pollen. | tobacco is a plant belonging to the solanaceae family. this plant is usually used as a contact insecticide for several infestations in some areas, such as the canary islands. allergy induced by inhalation of this plant is unusual. identification of the potential allergen in growing areas is essential. | 1999 | 10071524 |
| estrogen promotes the initial migration and inception of ngcam-dependent calcium-signaling by new neurons of the adult songbird brain. | the adult avian forebrain continues to generate neurons from ventricular zone (vz) precursor cells, whose neuronal progeny then migrate into the brain parenchyma. migrating neurons respond to the ig-family adhesion molecule ngcam with increments in cytosolic calcium, and migration is disrupted by anti-ngcam ig. the calcium response to ngcam is developmentally restricted to bipolar migrants during a period spanning 6 to 9 div. this period corresponds to the postmitotic age at which new neurons le ... | 1999 | 10049530 |
| bdnf mediates the effects of testosterone on the survival of new neurons in an adult brain. | new neurons are incorporated into the high vocal center (hvc), a nucleus of the adult canary (serinus canaria) brain that plays a critical role in the acquisition and production of learned song. recruitment of new neurons in the hvc is seasonally regulated and depends upon testosterone levels. we show here that brain-derived neurotrophic factor (bdnf) is present in the hvc of adult males but is not detectable in that of females, though the hvc of both sexes has bdnf receptors (trkb). testosteron ... | 1999 | 10027289 |
| [survey of neisseria meningitidis carriers in the health resort of the canary islands]. | 1998 | 9951344 | |
| bone trace element pattern in an 18th century population sample of tenerife (canary islands): comparison with a prehistoric one. | we have determined bone strontium (sr), barium (ba), calcium (ca), and zinc (zn) content in 24 samples belonging to adult individuals who died toward the end of the 18th century and were interred in a church's floor on the island of tenerife, comparing the results with those obtained in 14 prehistoric samples of the same island and also with those of 7 modern controls. no differences were observed between the two ancient groups, which showed higher bone strontium and barium than the modern sampl ... | 1998 | 9877536 |
| the comparative nutrition of two passerine species: the canary (serinus canarius) and the zebra finch (poephila guttata). | 1998 | 9868241 | |
| effects of fadrozole on sexual displays and reproductive activity in the female canary. | we used fadrozole, a potent inhibitor of the aromatization of androgens to estrogens, to investigate the influence of estradiol on copulation solicitation displays (csd) and reproductive activity in female canaries (serinus canaria). systemic injections of fadrozole during 10 consecutive days were effective in reducing plasma estradiol concentrations in adult female canaries submitted to photostimulation. fadrozole provides a powerful tool for limiting an individual's exposure to estradiol, and ... | 1998 | 9855471 |
| [the taxonomic status of phlebotomus sergenti parrot, 1917, vector of leishmania tropica (wright, 1903) and phlebotomus similis perfiliev, 1963 (diptera - psychodidae). morphologic and morphometric approaches. biogeographical and epidemiological corollaries]. | a morphological and morphometrical study of the closely related taxa phlebotomus (paraphlebotomus) sergenti et p. (paraphlebotomus) similis confirms their specific taxonomic status. differential characters between these two species are discussed. males differ by the aspect of the basal process of the coxite which is curved and narrow in the first species whereas straight and thick for the latter. the p. similis process is bigger and tuffer and its style is longer than those of p. sergenti. femal ... | 1998 | 9846232 |
| extracts from various mite species contain cross-reactive and noncross-reactive ige epitopes. a rast inhibition study. | previous studies have demonstrated the high incidence of dermatophagoides, euroglyphus, blomia, lepidoglyphus and chortoglyphus spp. sensitizations in a mite-allergic population. the aim of this study was to evaluate immunological cross-reactivity among the above mentioned groups, using sera from a nonrural population allergic to mites, from a subtropical area (canary islands). rast inhibition studies demonstrated significant cross-reactivity among dermatophagoides and euroglyphus species (> or ... | 1998 | 9827424 |
| mitochondrial dna variability in the canary islands honeybees (apis mellifera l.). | the mitochondrial dna (mtdna) of individuals from 79 colonies of apis mellifera from five canary islands was studied using the drai test based on the restriction of pcr products of the trna(leu)-coii intergenic region. five haplotypes of the african (a) lineage and one of the west european (c) lineage were found. the haplotypes a14 and a15 are described for the first time. these haplotypes have a new p sequence named p1. the wide distribution and high frequency of haplotype a15 suggest that it i ... | 1998 | 9819907 |
| neural bases of song preferences in female zebra finches (taeniopygia guttata). | we examined the neural bases of song preferences in female zebra finches (taeniopygia guttata). females performed more courtship displays in response to conspecific songs than to heterospecific songs. following electrolytic lesion to the hvc (sometimes referred to as high vocal center), females maintained normal song preferences. however, following lesion to chv (caudal hyperstriatum ventrale, an auditory area) females performed courtship displays at high rates in response to both conspecific an ... | 1998 | 9804314 |
| floriceps saccatus plerocerci (trypanorhyncha, lacistorhynchidae) as parasites of dolphin fish (coryphaena hippurus l.) and pompano dolphin (coryphaena equiselis l.) in western mediterranean and eastern atlantic waters. ecological and biological aspects. | a study of the plerocerci of floriceps saccatus from the abdominal cavity of dolphin fish (coryphaena hippurus) and pompano dolphin (coryphaena equiselis) was conducted. in all, 565 dolphin fishes were collected from majorcan waters (balearic islands, western mediterranean) during 3 summer and autumn seasons (1990, 1991, and 1995). from the canary islands (eastern atlantic), 41 specimens of dolphin fish were caught during 1994 and 49 specimens of pompano dolphin during 1995. cysts of different s ... | 1998 | 9794650 |
| imaging birds in a bird cage: in-vivo fse 3d mri of bird brain. | an in-vivo magnetic resonance imaging (mri) procedure is described that allows one to obtain three-dimensional high quality images of the entire brain of small birds such as the canary (20 g) and the starling (75 g) with an image resolution of 0.1 mm (58-113 microm, dependent on the size of the imaged bird). the entire imaging procedure took about 2 h after which the birds recovered from anaesthesia uneventfully and could be reused for subsequent additional imaging. this non invasive mri techniq ... | 1998 | 9794286 |
| phylogeny and rapid northern and southern hemisphere speciation of goldfinches during the miocene and pliocene epochs. | mitochondrial cytochrome b (cyt b) from 25 out of 31 extant goldfinches, siskins, greenfinches and redpolls (genus carduelis) has been sequenced from living samples taken around the world, specimens have also been photographed. phylogenetic analysis consistently gave the same groups of birds, and this grouping was generally related to geographical proximity. it has been supposed that pleistocene glaciations played a crucial role in the origin of extant diversity and distribution of northern hemi ... | 1998 | 9791543 |
| inclusion body disease in two captive boas in the canary islands. | 1998 | 9787424 | |
| mitochondrial phylogeny of the genus regulus and implications on the evolution of breeding behavior in sylvioid songbirds. | we tested four hypotheses about the relationships of the kinglets (genus regulus)to seven closely related genera of the songbird superfamily sylvioidea using mitochondrial dna sequences. the kinglets were suggested to be closely related to the tits (parus) or to the old world warblers (phylloscopus) and were also suggested to constitute the, or at least one of the, most ancestral splits among the sylvioids. our phylogenetic analysis grouped the kinglets as the sister group of a clade comprising ... | 1998 | 9751924 |
| phylogeography of skinks (chalcides) in the canary islands inferred from mitochondrial dna sequences. | mitochondrial dna (mtdna) evolution was investigated in skinks of the genus chalcides found in the canary islands (ch. sexlineatus, ch. viridanus and ch. simonyi), together with some north african congenerics (ch. polylepis and ch. mionecton). several sites were included within islands to cover areas of known within-island geographical variation in morphology. skinks from the islands of el hierro and la gomera appear to be sister taxa. the relationships between this clade and the tenerife and gr ... | 1998 | 9734075 |
| toward a song code: evidence for a syllabic representation in the canary brain. | we show that presentation of individual canary song syllables results in distinct expression patterns of the immediate-early gene zenk in the caudomedial neostriatum (ncm) of adult canaries. information on the spatial distribution and labeling of stained cells provides for a classification of zenk patterns that (1) accords to the organization of stimuli into families, (2) preserves the stimuli intrafamily relationships, and (3) confers salience to natural over artificial stimuli, resulting in a ... | 1998 | 9728917 |
| primary th1 cell immunization against hivgp160 in scid-hu mice coengrafted with peripheral blood lymphocytes and skin. | scid-hu mouse models are of interest in the pathologic investigation of hiv infection, but obtaining a t cell response in scid-hu-pbl mice is still controversial. we have developed a scid model by engrafting human skin and autologous pbls from hiv-seronegative individuals. the study describes the ability of this human-mouse chimera to generate in vivo a primary t lymphocyte response against hiv ag. the injection of human autologous pbls was performed 4 to 5 wk after the skin engraftment. two wee ... | 1998 | 9712080 |
| [the ear of a boxer from canary islands]. | the canary fight is a sport with traditional character deeply-rooted in spain. the pinna rubbing by bodies contact in hand-to-hand combat produce a typical deformity. we present this pathology not only due to its specific pathogenesis but also as part of the cultural patrimony of canary islands (fortunate islands). | 1998 | 9707762 |
| h2o2 production of heart mitochondria and aging rate are slower in canaries and parakeets than in mice: sites of free radical generation and mechanisms involved. | birds have a maximum longevity (mlsp) much higher than mammals of similar body size in spite of their high metabolic rates. in this study, state 4 and state 3 rates of h2o2 production were lower in canary (mlsp = 24 years) and parakeet (mlsp = 21 years) than in mouse (mlsp = 3.5 years) heart mitochondria. studies using specific inhibitors of the respiratory chain indicate that free radical generation sites at complexes i and iii are responsible for these differences. main mechanisms lowering h2o ... | 1998 | 9701767 |
| non invasive in vivo anatomical studies of the oscine brain by high resolution mri microscopy. | we describe in this paper an in vivo magnetic resonance imaging (mri) procedure that allows one to obtain three-dimensional high quality images of the entire brain of small passerine birds such as the canary with a slice thickness of 58 micron and an image resolution of 78 microns. this imaging procedure was completed in 70 min on anaesthetised birds that later recovered uneventfully and could be reused for subsequent additional imaging. to illustrate the high resolution and anatomical detail th ... | 1998 | 9696309 |
| vestibular function in belgian waterslager canaries (serinus canarius). | the purpose of this study was to measure vestibular function in belgian waterslager canaries using short latency vestibular evoked potentials (vseps) elicited by linear acceleration stimuli. responses were recorded with vertex to mastoid leads using traditional signal averaging. response thresholds, latencies, and amplitudes were quantified and compared to non-waterslager controls. cochlear and vestibular organs were also processed for scanning electron microscopy. results indicated that vestibu ... | 1998 | 9682818 |
| follicular atresia and lh concentrations during the follicular phase of the estrous cycle in the goat (capra hircus). | the objective of the study was to identify the effects of lh on the final follicle maturation process as well as the incidence of atresia during the follicular phase of the goat's estrous cycle. in experiment 1, concentrations of the lh were measured during the follicular phase of a synchronized cycle in 8 canary goats. in experiment 2, the same animals were synchronized again. on each day of a 4-day experimental period (day 0 = day of sponges withdrawal), 2 of the goats were bilaterally ovariec ... | 1998 | 9672667 |
| hla associations with multiple sclerosis in the canary islands. | the study of small island populations has proved informative with respect to the epidemiology and genetics of many complex traits including multiple sclerosis. the class ii major histocompatibility antigen dr15 is associated with multiple sclerosis in all groups except sardinians, where the primary association is with dr4. we compared hla-dr and -dq allele frequencies in a representative sample of patients with multiple sclerosis from the canary islands with appropriate controls. there was a sig ... | 1998 | 9670854 |
| lucifer yellow filling of area x-projecting neurons in the high vocal center of female canaries. | the avian high vocal center (hvc) is a complex forebrain nucleus that coordinates the sensorimotor integration necessary for song learning and production. it receives auditory and potentially somatosensory input, and sends major projections to vocal motor and anterior forebrain nuclei. the hvc has at least four morphological classes of neurons for which the connectivity remains uncertain. previous studies have alluded to the functional identity of the cell classes, but none have provided the def ... | 1998 | 9666104 |
| spanish and african contribution to the genetic pool of the canary islanders: data from gm and km haplotypes and rflps in the immunoglobulin ighg loci. | data on the gm and km haplotypes and rflps in the immunoglobulin ighg loci are reported intending to evaluate the genetic contribution of the different populations (europeans and africans) who settled tenerife island. the gm and km allotypic systems reveal an estimated european genetic admixture of 88%. the only possible african contribution is the presence of the gm*1,17;...;5* haplotype (2.5%), but no other traces of black african characteristic haplotypes are found. although new rflp haplotyp ... | 1998 | 9659976 |
| conspecific and heterospecific song discrimination in male zebra finches with lesions in the anterior forebrain pathway. | adult zebra finches can produce normal song in the absence of area x, iman, or dlm, nuclei that constitute the anterior forebrain pathway of songbirds. here, we address whether lesions involving area x and iman affect adult male zebra finches' ability to discriminate between conspecific or heterospecific songs. intact birds and lesioned birds were trained on an operant go/nogo conditioning paradigm to discriminate between hetero- or conspecific songs. both lesioned and intact birds were able to ... | 1998 | 9658340 |
| hydrocarbon contamination in the canary islands. ii. intertidal limpet patella ulyssiponensis aspera. | 1998 | 9657833 | |
| [genetic polymorphism of vitamin d receptor and osteoporosis]. | genetic factors condition an important part of bone mass. the role of vitamin d receptor polymorphism (vdr) as genetic marker of osteoporosis is a matter of discussion. we have studied the possible influence of vdr on bone remodelling, calciotropic hormones, on the presence of osteoporosis and osteoporotic bone fractures. patients, control population and methods: a case-control study. we have studied a total of 127 postmenopausal canarian women from canary islands, spain; 66 healthy controls and ... | 1998 | 9656208 |
| the prevalence of dirofilaria immitis in gran canaria, canary islands, spain (1994-1996). | blood samples from 2034 dogs were tested to detect dirofilaria immitis antigen during three consecutive years (from 1994 to 1996) in gran canaria island, canary islands, spain. the prevalence of heartworm infection was 67.02% in 1994, 58.92% in 1995 and 52.18% in 1996, with a mean prevalence of 58.89%. heartworm infection was more common in males (56.19%) than in females (43.81 %), in dogs aged between 3 and 6 years old. the distribution of the disease in the different climatic zones was studied ... | 1998 | 9637223 |
| ethanol production from afex-treated forages and agricultural residues. | lignocellulosic materials derived from forages, namely timothy grass, alfalfa, reed canary grass, and agricultural residues, such as corn stalks and barley straw, were pretreated using ammonia fiber explosion (afex) process. the pretreated materials were directly saccharified by cellulolytic enzymes. sixty to 80% of theoretical yield of sugars were obtained from the pretreated biomasses. subsequent ethanolic fermentation of the hydrolysates by pachysolen tannophilus atcc 32691 resulted in 40-60% ... | 1998 | 9627392 |
| time and frequency domain analysis for the assessment of heart autonomic control in parkinson's disease. | in order to evaluate autonomic regulation in parkinson's disease, the heart-rate responses to passive head-up tilt and the spectral analysis of spontaneous heart rate variability in supine position were studied in 18 young (30.8 +/- 1.38 years old) and 13 aged (61.9 +/- 1.61 years) healthy controls and 13 patients with parkinson's disease (62.9 +/- 1.55 years). patients were evaluated in the university hospital of the canary islands by a neurologist and a specialist in rehabilitation. finally, a ... | 1996 | 9617788 |
| [sensitization in budgerigar owners]. | in a prospective study 258 adults were investigated for sensitisation against bird antigens (budgerigar, canary, pigeon) using intracutaneous test. 18 of 78 budgerigar keepers were sensitised against budgerigar feathers. 30 (38%) showed a positive skin reaction at least with one of the three extracts tested. in none bird exposed persons a sensitisation was found in 18/96 (19%) against budgerigar and in 24/96 (25%) against at least one of the three allergen extracts. late reactions occurred in 5/ ... | 1998 | 9610185 |
| genotypic characterization of bradyrhizobium strains nodulating endemic woody legumes of the canary islands by pcr-restriction fragment length polymorphism analysis of genes encoding 16s rrna (16s rdna) and 16s-23s rdna intergenic spacers, repetitive extragenic palindromic pcr genomic fingerprinting, and partial 16s rdna sequencing. | we present a phylogenetic analysis of nine strains of symbiotic nitrogen-fixing bacteria isolated from nodules of tagasaste (chamaecytisus proliferus) and other endemic woody legumes of the canary islands, spain. these and several reference strains were characterized genotypically at different levels of taxonomic resolution by computer-assisted analysis of 16s ribosomal dna (rdna) pcr-restriction fragment length polymorphisms (pcr-rflps), 16s-23s rdna intergenic spacer (igs) rflps, and repetitiv ... | 1998 | 9603820 |
| effect of heliotherapy on the cost of psoriasis. | a 2-year trial was conducted to evaluate the cost-effectiveness of heliotherapy for psoriasis. the course and cost of psoriasis of 46 finnish patients were first closely monitored for 1 year, then the patients received a 4-week supervised heliotherapy treatment in the canary islands, spain, after which they continued to be followed for another year. heliotherapy dramatically reduced the severity of psoriasis and also seemed to have favourable long-term effects on psoriasis. the mean direct cost ... | 1998 | 9602876 |
| gastric tonometry: the canary sings once again. | 1998 | 9590301 | |
| [the experience of the search for lyme disease in the eastern canary islands]. | the eastern region of canary islands presents certain climatic and atmospheric conditions which differentiate it from the accepted parameters in cases of lyme disease. we present a serologic study of patients with clinical syndrome which is potentially compatible with lyme disease, in an effort to clarify the presence of this disorder region. | 1998 | 9586363 |
| [healthy aging and functional disability among the elderly inhabitants of the canary islands (spain)]. | among the elderly, health is usually measured in terms of ability for both the basic and instrumental activities of daily living. the objective of this work is to estimate the percentage of healthy elderly among the population of the canary islands (spain) and the factors associated with functional disability in this older population. | 1997 | 9546859 |