Publications
| Title | Abstract | Year(sorted descending) Filter | PMID Filter |
|---|
| [q-fever imported into norway]. | q fever is an important zoonosis that occurs throughout the world. in contrast to most other european countries, there has been no evidence of endemic q fever in norway up to now. the disease is caused by coxiella burnetii, a rickettsia-like bacterium. humans are infected mainly by inhalation of contaminated aerosols from cattle, sheep and goats. clinical manifestations are protean, ranging from asymptomatic infection to life-threatening endocarditis. in this article we present the first four ca ... | 1997 | 9441420 |
| evidence for supporting cell proliferation and hair cell differentiation in the basilar papilla of adult belgian waterslager canaries (serinus canarius). | we used the bromodeoxyuridine technique to study the proliferative activity in the basilar papilla of normal and belgian waterslager canaries with and without preceding sound trauma. without sound trauma, there were, on average, six supporting cell divisions per day in the basilar papilla of waterslager canaries. this rate of supporting cell proliferation corresponds well with estimates of the rate of hair cell differentiation derived from counts of immature-appearing hair cells obtained by usin ... | 1997 | 8986868 |
| a serologic study of human toxocariasis in the canary islands (spain): environmental influences. | the presence of anti-toxocara antibodies in the human population of the canarian archipelago was studied by means of an indirect enzyme-linked immunosorbent assay with excretory/secretory antigen of infective-stage larva. a total of 14,074 were analyzed, resulting in the following distribution and prevalence by location: southern tenerife 6,435 (2.5% positive), northern tenerife 1,710 (6.7% positive), la palma 1,214 (4.5% positive), la gomera 264 (6.8% positive), el hierro 204 (3.9% positive), g ... | 1997 | 9063372 |
| [income, percent of women living in rural areas, parity, and breast cancer mortality in spain, 1975-1991]. | the aim of the present study was to analyze breast cancer mortality by provinces in spain during the period 1975-91, and to assess the relationship with the geographical distribution of income level, percent of women living in rural areas and average parity of women in each province. | 1997 | 9064415 |
| "shattered illusions--the thiepval barracks bombing, 7 october 1996". | the provisional ira's ceasefire ended abruptly with the canary wharf bombing in london in february 1996. hopes that violence would not return to northern ireland were shattered by the explosion of two car bombs in the headquarters of the british army in ulster in october 1996. the second bomb specifically targeted medical staff treating casualties from the first explosion. this article describes the medical aspects of this incident, including the extensive use of critical incident stress debrief ... | 1997 | 9089545 |
| genetic study of the population of tenerife (canary islands, spain): protein markers and review of classical polymorphisms. | data on six protein polymorphisms (19 alleles) from the human population of tenerife are presented and discussed along with other classical markers in relation to the origin of the canarians. genetic influences from three population groups were considered: the iberians, and the berbers and non-berbers (arabs) from north africa. the systems examined show the tenerife population lies within the limits of variation described for various iberian groups, with a slight tendency towards the characteris ... | 1997 | 9098503 |
| population genetic structure and colonization sequence of drosophila subobscura in the canaries and madeira atlantic islands as inferred by autosomal, sex-linked and mtdna traits. | the genetic structure in atlantic islands and continental populations of drosophila subobscura has been studied using autosomal and sex-linked allozymes and mitochondrial dna (mtdna) haplotypes. from the data it is deduced that whereas the canary islands have long been isolated, the neighboring island of madeira has been subjected to continuous migration from the mainland. in addition, sex-linked allozymes and mtdna data show a large divergence between the geologically younger western islands of ... | 1997 | 9099006 |
| reafferent thalamo- "cortical" loops in the song system of oscine songbirds. | songbirds have a complex vocal repertoire, much of which is learned by imitation. the vocal motor system of songbirds includes a set of telencephalic pathways dedicated to the acquisition and production of learned song. the main vocal motor pathway goes from the high vocal center (hvc) to the robust nucleus of the archistriatum (ra), which in turn innervates mesencephalic and medullary nuclei involved in vocalization. we used neural tract tracers (biotinylated dextran amines, fluorescein- and rh ... | 1997 | 9100137 |
| [an anthropometric equation for the determination of the percentage of body fat in young men from the canarian population]. | yet there are no anthropometric equations specific for the canary islands adult population. the purpose of this study was to develop an anthropometric equation specific for the canary islands adult male population, using dual-energy x-ray absorptiometry (dexa) as the reference method. | 1997 | 9102485 |
| [a review of q fever in the canary islands]. | 1997 | 9102680 | |
| canine myiasis by sheep bot fly (diptera:oestridae). | we present a case of canine infestation by 3rd instars of oestrus ovis (l.) in a 10-yr-old cross-bred dog (collie x german shepherd) from fuerteventura, canary islands, spain. this report confirms that this fly can develop in dogs. | 1997 | 9103770 |
| motor-driven gene expression. | there is increased neuronal firing in the high vocal center (a motor nucleus) and other song nuclei of canaries, serinus canaria, and zebra finches, taeniopygia guttata, whenever these songbirds sing or hear song. these observations suggested that song perception involved sensory and motor pathways. we now show that the act of singing, but not hearing song, induces a rapid and striking increase (up to 60-fold) in expression of the transcriptional regulator zenk in the high vocal center and other ... | 1997 | 9108111 |
| european collaboration identifies an outbreak of escherichia coli q157 infection in visitors to fuerteventura, canary islands. | 1997 | 9136447 | |
| the natural history of apis-specific igg and igg4 in beekeepers. | most published studies on changes of specific igg or its subclasses as a response to stimuli by allergens have been performed on patients under immunotherapy. there are few reports analysing the response to immunoglobulins in patients exposed to allergens in their natural habitats. | 1997 | 9146935 |
| left syringeal dominance in testosterone-treated female canaries. | male canaries (serinus canaria) produce most of their song syllable types on the left side of the syrinx, the two-sided vocal organ. female canaries treated with testosterone propionate begin to sing in a male fashion, a behavior seldom seen in untreated females. to learn whether syringeal dominance occurs in testosterone-treated female canaries, we deactivated either the right or the left side of the syrinx by severing the tracheosyringeal nerve on that side. recordings of the birds' songs were ... | 1997 | 9159762 |
| equine babesiosis associated with strenuous exercise: clinical and pathological studies in jordan. | clinical, haematological and pathological studies were undertaken in jordan in a stud of 103 racing horses clinically suffering from babesiosis and apparently healthy animals. out of 47 horses which participated in strenuous exercise, three mares showed sudden onset of immobility and reluctance to move and two mares died. clinical examination revealed that these five horses (group 1) had fever, anorexia, weakness and severe icterus and, in two mares, haemoglobinuria. haematological examination r ... | 1997 | 9187024 |
| hormonema schizolunatum, a new species of dothideaceous black yeasts from phyllosphere. | two black yeast isolates from plants from the canary islands (spain) are described and illustrated. absence of woronin bodies at simple septal pores, local coralloid terminal hyphal cells, indeterminate thallus maturation, the presence of budding cells and local conversion to meristematic growth all indicate a relationship to the dothideaceae (dothideales, ascomycota). morphological properties were consistent with the genus hormonema lagerberg & melin, as defined by presence of percurrent conidi ... | 1997 | 9195004 |
| abomasal nematodes in goats from the subtropical island of grand canary (spain). | the prevalence of gastric nematodes in 151 goats on grand canary island is around 56%, with a mean burden of 691 worms/animal. no significant differences of prevalence and intensity were found between the four isoclimatic areas of the island [dry-desert (dd); dry-steppe (ds); temperate-mild (tm); temperate-cold (tc)]. five nematode species were identified, the most commonly-occurring being teladorsagia circumcincta (observed in 65.8% of parasitized animals) and trichostrongylus axei (51.9%). the ... | 1997 | 9208446 |
| watching the canary: the prevention of suicide. | 1997 | 9213144 | |
| molecular genetics of glucose-6-phosphate dehydrogenase deficiency in mexico. | several studies carried out between 1965 and 1985 showed that g-6-pd deficiency in mexico is heterogeneous at the biochemical level and that the g-6-pd a- phenotype is relatively common. we have now investigated the molecular basis of g-6-pd deficiency in mexico. up-to-date 60 chromosomes with g6pd mutations have been studied, 16 in previous studies and 44 in the present work. molecular analysis of dna from g-6-pd deficient mexican mestizos and their relatives show that g-6-pd a- genotypes are r ... | 1997 | 9215753 |
| a subtropical case of human babesiosis. | this report constitutes the first well-documented case of symptomatic human babesiosis from a subtropical site, south of the 40th parallel. this paper describes the definitive identification of babesia divergens infection in a splenectomized patient from the canary islands. | 1997 | 9241387 |
| re: phylogenetic relationships of the canary islands endemic lizard genus gallotia inferred from mitochondrial dna sequences: incorporation of a new subspecies. | 1997 | 9242599 | |
| sensitization to blomia kulagini in a general population of a subtropical region of spain (canary islands). | the blomia genus has been described as allergenic in man. the present study aimed to assess the prevalence of b. kulagini sensitization in a large population of allergic subjects without occupational exposure in a subtropical region (canary islands, spain). secondarily, a new standardized b. kulagini extract was evaluated. the study population comprised 207 patients. rast for b. kulagini was positive in 76.2% of patients, and 47 of them were selected for the biologic standardization. when the pr ... | 1997 | 9265987 |
| selective expression of insulin-like growth factor ii in the songbird brain. | neuronal replacement occurs in the forebrain of juvenile and adult songbirds. to address the molecular processes that govern this replacement, we cloned the zebra finch insulin-like growth factor ii (igf-ii) cdna, a factor known to regulate neuronal development and survival in other systems, and examined its expression pattern by in situ hybridization and immunocytochemistry in juvenile and adult songbird brains. the highest levels of igf-ii mrna expression occurred in three nuclei of the song s ... | 1997 | 9278533 |
| identity and biodegradative abilities of yeasts isolated from plants growing in an arid climate. | plants harvested in the canary islands lanzarote and fuerteventura were analyzed for the yeasts inhabiting their surface. half of the isolates (22 out of 44) were identified as debaryomyces hansenii. black ascomycetes, viz. hortaea werneckii and two hormonema species were represented by 7 strains. basidiomycetous yeasts, viz. cryptococcus sp. (8 strains), rhodotorula sp. (5 strains), cerinosterus cyanescens (1 strain) and pseudozyma sp. (1 strain) constituted a minority of 33%. thirty strains we ... | 1997 | 9298186 |
| photoperiod regulation of neuron death in the adult canary. | the avian brain undergoes naturally occurring cell death and neuronal replacement in adulthood. little is known about how neuron survival in adult birds is regulated. however, previous work suggests that this process is open to environmental control. we now report that a reduction in day length from spring-like to fall-like conditions can dramatically increase cell death in adult male canaries. many of the dying cells are projection neurons in the motor pathway controlling song learning and prod ... | 1997 | 9298761 |
| expression of brain lipid binding protein in the brain of the adult canary and its implications for adult neurogenesis. | brain lipid binding protein (blbp), a member of the fatty acid binding protein family, is expressed at high levels in the mammalian central nervous system during development, but not in adulthood. because the brain of adult birds continues to show significant levels of neurogenesis, we thought it likely that blbp expression would also be present. we used a polyclonal antibody against blbp to study the presence of this protein in the adult canary brain. this antibody stained 1) fibers and perikar ... | 1997 | 9300768 |
| serum "b" esterases as a nondestructive biomarker for monitoring the exposure of reptiles to organophosphorus insecticides. | a field study was conducted to validate serum b esterases as nondestructive biomarkers (ndbs) in lizards. serum butyrylcholinesterase (bche) and carboxylesterase (cbe) activities were measured in lizards and four species of birds collected in an area of 0.5 ha sprayed with 0.36 kg a.i./ha of folidol se5 (5% parathion). serum b esterase activities were determined in a total of 213 lizards (gallotia galloti) and 81 birds of four species (sylvia melanocephala, serinus canaria, parus caeruleus, and ... | 1997 | 9352213 |
| intestinal cryptosporidiosis in pigeons (columba livia). | an intestinal disease in pigeons (columba livia) from the canary islands characterized by diarrhea and body weight loss is described. intestinal cryptosporidiosis was identified in three young pigeons. cryptosporidia were associated with hyperplasia of the intestinal crypts and moderate inflammatory infiltration in lamina propria. this is the first report of cryptosporidiosis in pigeons. | 1997 | 9356726 |
| distribution and dynamics in the expression of androgen and estrogen receptors in vocal control systems of songbirds. | developmental and seasonal changes in the production of androgens and estrogens seem to control sex-specific differentiation and seasonal changes in sexual behaviors such as singing of songbirds. these steroids affect the brain by binding to intracellular located receptors. here we analyze whether the expression of androgen receptors (ar) and estrogen receptors (er) is a limiting factor for differentiation of the vocal pattern and the vocal control system of zebra finches and canaries. ar and er ... | 1997 | 9370218 |
| oculopharyngeal muscular dystrophy in uruguay. | within the last 30 years, sixty-five patients exhibiting the clinical symptoms of oculopharyngeal muscular dystrophy (opmd) were studied at the neuromuscular diseases unit of the neurological institute of montevideo. they are members of five unrelated families which came from the canary islands to uruguay between 1850 and 1900. in the three families examined, the typical inclusions characteristic of opmd were found in the nuclei of muscle fibers. treatment for ptosis and dysphagia was discussed. ... | 1997 | 9392016 |
| epidemiological aspects of asthma in the canary islands. | 1997 | 9416525 | |
| heeding warnings ... from the canary, the whale, and the jnuit, part two. | there is a tension between traditional and modern definitions of reproductive risk and normalcy. these experts describe that tension as it plays out among the inuit of northern canada from the perspective of a community midwife who has worked with the inuit. she presents an analytical framework which classifies and illuminates the types of logic that compete in most birth settings around the world--a framework useful for showing how some types of logic can be supervalued while others, such as cu ... | 1997 | 9429437 |
| paleodietary analysis on the prehistoric population of el hierro (canary islands). | in order to deepen our knowledge of the dietary habits of the prehispanic inhabitants of el hierro, we have determined bone strontium (sr), manganese (mn), magnesium (mg), copper (cu), zinc (zn), and calcium (ca) in 52 human tibiae (23 belonging to male and 20 to female individuals) buried in a single burial cave; in 21 modern individuals who served as controls; and in 11 bones of herbivores found at archeological sites of the canary islands. results suggest that females consumed a more vegetari ... | 1997 | 9522063 |
| [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 |
| uganda pioneers alvac -- and informed consent. vaccine trials. | pasteur merieux, a french pharmaceutical company, has developed a promising new experimental vaccine against aids. the vaccine, alvac vcp205, contains live, genetically engineered canaripox virus carrying several small fragments of hiv. canaripox virus causes disease among canary birds, but not in humans. alvac vcp205 has already been tested on more than 100 volunteers in the us and france who have shown no ill effects. clinical trials will start in uganda in early 1997, at which point 40 yo ... | 1997 | 12292058 |
| whole atmospheric-turbulence profiling with generalized scidar. | statistical analysis of stellar scintillation on the pupil of a telescope, known as the scidar (scintillation, detection, and ranging) technique, is sensitive only to atmospheric turbulence at altitudes higher than a few kilometers. with the generalized scidar technique, recently proposed and tested under laboratory conditions, one can overcome this limitation by analyzing the scintillation on a plane away from the pupil. we report the first experimental implementation of this technique, to our ... | 1997 | 18264318 |
| quill mite (dermoglyphus passerinus) infestation of canaries (serinus canaria): diagnosis and treatment. | quill mite (dermoglyphus passerinus) infestation of canaries (serinus canaria): diagnosis and treatment. quill mites are described in many species of birds. most reports state that the infestation is difficult or impossible to treat. in this case report the diagnosis, identification and successful treatment of the quill mite in canaries is described. | 1997 | 18483901 |
| hatching behavior of potato cyst nematodes from the canary islands. | the present work investigated early hatching differences in naturally occuring field populations and newly reared populations of potato cyst nematodes from the canary islands. hatching behavior of the two species appears to be distinct, with more juveniles hatched from g. pallida that hatch earlier and over a shorter time than g. rostochiensis. the hatching rate of 3-year-old pcn populations was more than double (mean 44.5% ñ 1) that shown by newly reared populations (mean 19.1% ñ 12.5), and tho ... | 1996 | 19277163 |
| ground-based detectability of terrestrial and jovian extrasolar planets: observations of cm draconis at lick observatory. | the detection of terrestrial-sized extrasolar planets from the ground has been thought to be virtually impossible due to atmospheric scintillation limits. however, we show that this is not the case especially selected (but nevertheless main sequence) stars, namely small eclipsing binaries. for the smallest of these systems, cm draconis, several months to a few years of photometric observations with 1-m-class telescopes will be sufficient to detect the transits of any short-period planets of si ... | 1996 | 11539351 |
| chloroplast dna evidence of colonization, adaptive radiation, and hybridization in the evolution of the macaronesian flora. | most evolutionary studies of oceanic islands have focused on the pacific ocean. there are very few examples from the atlantic archipelagos, especially macaronesia, despite their unusual combination of features, including a close proximity to the continent, a broad range of geological ages, and a biota linked to a source area that existed in the mediterranean basin before the late tertiary. a chloroplast dna (cpdna) restriction site analysis of argyranthemum (asteraceae: anthemideae), the largest ... | 1996 | 11607675 |
| 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 |
| blood group polymorphisms in the canary islands. | human samples from the seven canary islands were studied for the following polymorphic red cell blood group systems: abo, rh, mnss, fy and p. in contrast to the intra-insular homogeneity found, inter-insular heterogeneity was observed for abo, rh and fy. the observed blood group allelic systems were within the range of european populations, with some minor african contribution. | 1996 | 9263771 |
| genetic differentiation of continental and island populations of bombus terrestris (hymenoptera: apidae) in europe. | ten microsatellite loci and a partial sequence of the coii mitochondrial gene were used to investigate genetic differentiation in b. terrestris, a bumble bee of interest for its high-value crop pollination. the analysis included eight populations from the european continent, five from mediterranean islands (six subspecies altogether) and one from tenerife (initially described as a colour form of b. terrestris but recently considered as a separate species, b. canariensis). eight of the 10 microsa ... | 1996 | 9147693 |
| phylogeny of the genus hegeter (tenebrionidae, coleoptera) and its colonization of the canary islands deduced from cytochrome oxidase i mitochondrial dna sequences. | the genus hegeter comprises 23 species of darkling beetles (tenebrionidae) endemic to the macaronesian archipelagos, with 21 of them exclusive to the canary islands. we have sequenced 438 bp of the mitochondrial cytochrome oxidase i gene in 17 species (24 taxa) of canarian hegeter. estimates of nucleotide composition, transition/transversion ratios and nucleotide change frequencies are very similar to those found in another tenebrionid canarian genus pimelia, indicating that similar molecular me ... | 1996 | 8626224 |
| improved gastric tonometry for monitoring tissue perfusion: the canary sings louder. | 1996 | 8659716 | |
| apolipoprotein e polymorphism influence on lipids, apolipoproteins and lp(a) in a spanish population underexpressing apo e4. | the apolipoprotein e (apo e) polymorphism in a spanish working population of tenerife (canary islands, spain) was analyzed. the distribution of apo e alleles (epsilon 3, 0.850; epsilon 2, 0.075; epsilon 4, 0.075) and phenotypes (e3/3, 72.6%; e3/4, 13%; e3/2, 11.5%; e4/4, 0.8%; e2/2, 1.5%; e4/2, 0.5%) was significantly different from those of a combined caucasian population owing to a lower frequency of apo e4. we have also investigated the effect of apo e polymorphism on serum levels of choleste ... | 1996 | 8678918 |
| candida glabrata: in vitro susceptibility of 84 isolates to eight antifungal agents. | the in vitro susceptibility of 84 isolates of candida glabrata from patients treated at the university hospital of the canary islands to eight antifungal agents (amphotericin b, itraconazole, fluconazole, miconazole, clotrimazole, tioconazole and econazole) has been studied using the broth dilution micro-method. among the eight antifungal agents tested, the smaller geometric mean corresponded to tioconazole, econazole, clotrimazole and miconazole. in contrast with fluconazole, a greater geometri ... | 1996 | 8697885 |
| canary-pox (alvac) virus-mediated cytokine gene therapy induces tumor specific and non-specific immunity against mouse prostate tumor. | 1996 | 8701820 | |
| [clinical characteristics and epidemiologic study of a listeriosis outbreak in grand canary]. | background and methods: human infections caused by listeria monocytogenes often present as sporadic cases without any epidemiological relationship among them; however they also appear as outbreaks that are usually detected by an increase in the number of cases diagnosed by hospitals of the geographic area. between december 1991 and may 1993, twenty four cases of listeriosis were detected in three hospitals of las palmas de gran canaria; and they were classified as an outbreak. our report describ ... | 1996 | 8991435 |
| quantity of k, ca, na, mg, fe, cu, pb, zn and ashes in doc tacoronte-acentejo (canary islands, spain) musts and wines. | this study determines ash, k, ca, na, mg, fe, cu, pb, and zn content in musts and wines of the doc tacoronte-acentejo (tenerife, canary islands) from two consecutive harvests. samples were treated with hno3 and h2o2. na and k were determined by flame photometry and the remaining metals by air/acetilene flame atomic absorption spectrophotometry. significant differences were observed in na, ca and mg contents between both harvests, possibly due to climate conditions. | 1996 | 9002177 |
| historical background of aeropalynology in the canary islands. | this paper forms part of a doctorate thesis, currently being completed at the allergy and immunology section of the ntra. sra. de la candelaria hospital, tenerife, regarding the epidemiology of pollens we would like to illustrate that this island and its provinces are similar to a miniature continent, where pollens from the most important allergenic families present in the national territory of the iberian peninsula can be found. we have a very high incidence of patients allergic to grass pollen ... | 1996 | 9010563 |
| heeding warnings from the canary, the whale, and the inuit. | there is a tension between traditional and modern definitions of reproductive risk and normalcy. this excerpt describes that tension as it plays out among the inuit of northern canada from the perspective of a community midwife who has worked with the inuit. she presents an analytical framework which classifies and illuminates the types of logic that compete in most birth settings around the world-a framework useful for showing how some types of logic can be supervalued while others, such as cul ... | 1996 | 9016068 |
| intracerebral sex differences in the vasotocin system in birds: possible implication in behavioral and autonomic functions. | the brain vasotocinergic system demonstrates clear sexual dimorphism in birds investigated so far. this paper examines the evidence obtained in studies on gallinaceous (domestic fowl, japanese quail) and passerine (canary, junco, zebra finch) birds. vasotocin (vt)-immunoreactive parvocellular neurons are present in the nucleus of stria terminalis of males, but they are less abundant or absent in the corresponding structure of females. a similar difference has been observed in the dorsal paravent ... | 1996 | 9047289 |
| the ontogeny of the canary hvc revealed by the expression of androgen and oestrogen receptors. | the vocal control nucleus hvc (nucleus hyperstriatalis ventrale, pars caudale) of the canary (serinus canaria) is a model in which to study the relationship between anatomical plasticity and vocal developmental learning. much of the structural plasticity of the hvc is sensitive to the action of androgenic and oestrogenic gonadal hormones that affect the brain by binding to androgen receptors (ar) and oestrogen receptors (er). here we report developmental changes of ar and er expression in the hv ... | 1996 | 9051802 |
| mycobacterium genavense infection in canaries. | a case of mycobacteriosis in a collection of canaries (serinus canarius) is described. the affected birds showed nonspecific clinical signs and macroscopic lesions (slight splenomegaly). histologic lesions found in liver, spleen, lungs, and kidneys consisted of noncaseous nodules containing accumulations of large macrophages that showed a highly vacuolated cytoplasm in which numerous acid-fast organisms were detected. attempts to isolate and culture the organisms using löwenstein-jensen and cole ... | 1996 | 8713044 |
| anatomical basis of a congenital hearing impairment: basilar papilla dysplasia in the belgian waterslager canary. | recent investigations into the anatomy of the inner ear of belgian waterslager canaries (bwc) have demonstrated myriad malformations associated with dysgenesis of the pars inferior of the otocyst. in those studies, the surface anatomy of bwc's basilar papilla and sacculus was examined utilizing scanning electron microscopy. in the present investigation, we utilized both light microscopy and transmission electron microscopy to describe the cross sectional anatomical pathology of the bwc's basilar ... | 1996 | 8727001 |
| sub-saharan influence on the canary islands population deduced from g6pd gene sequence analysis. | in a screening of glucose-6-phosphate dehydrogenase (g6pd) a variants in the canary islands and northwest african populations by electrophoresis and posterior gene sequencing, the common a+ 376g and a- 202a/376g and the rare a- 376g/968c mutations were found. in addition, three new silent c-->t transitions have been detected at nucleotides 759 (exon 7), 1338 (exon 11), and 1573 (exon 13). canary island and north african samples share sub-saharan haplotypes with equatorial guineans. the slave tra ... | 1996 | 8754258 |
| a common origin for woody sonchus and five related genera in the macaronesian islands: molecular evidence for extensive radiation. | woody sonchus and five related genera (babcockia, taeckholmia, sventenia, lactucosonchus, and prenanthes) of the macaronesian islands have been regarded as an outstanding example of adaptive radiation in angiosperms. internal transcribed spacer region of the nuclear rdna (its) sequences were used to demonstrate that, despite the extensive morphological and ecological diversity of the plants, the entire alliance in insular macaronesia has a common origin. the sequence data place lactucosonchus as ... | 1996 | 8755546 |
| maternal testosterone in the avian egg enhances postnatal growth. | the eggs of the canary (serinus canaria) contain variable doses of maternal testosterone. the reported experiments investigated whether testosterone influences nestling growth and how this interacts with differences of the growth of nest mates that are caused by asynchronous hatching. injections of testosterone into the yolk of unincubated eggs enhanced the growth after hatching compared to nestlings that had hatched simultaneously from control eggs. these differences were established within 22 ... | 1996 | 8759148 |
| the king solomon lectures in neuroethology. a white canary on mount acropolis. | 1996 | 8765555 | |
| [continuous proliferation of supporting cells and indications for hair cell differentiation in the inner ear of adult song birds with genetic cochlear hearing loss]. | our previous investigations demonstrated that the belgian waterslagers (bws) canary (serinus canarius) was affected by an inherited sensorineural hearing loss. compared to normal canaries of others strains, hair cell numbers in these birds were reduced on average by 30%. since other birds are able to replace similar hair cell numbers after cochlear trauma, we investigated if bws have the potential for supporting cell proliferation with subsequent hair cell differentiation or if they lack the rep ... | 1996 | 8767126 |
| an epornitic of avian pox in houbara bustards (chlamydotis undulata macqueenii). | an epornitic of avian pox occurred in a flock of 123 houbara bustards (chlamydotis undulata macqueenii) received at the sulman falcon hospital in the state of bahrain in february 1993. birds displayed conjunctivitis, excessive lacrimation and papilloma-like growths forming amorphous clusters on the third eyelid and on the conjunctiva. examination of eyelid samples under transmission electron microscopy revealed pox virus particles displaying the classical morphology of vaccinia-avipox virions. t ... | 1996 | 8779810 |
| polycyclic aromatic hydrocarbons and n-alkanes in osilinus attratus from the coast of tenerife (canary islands). | 1996 | 8791557 | |
| human enzyme polymorphism in the canary islands. vii. g6pd seattle in canarians and north african berbers. | sequence analysis of the glucose-6-phosphate dehydrogenase (g6pd) variant gc, characterized by slower electrophoretic mobility than g6pd-b, in 14 canarian and 2 berber males, has revealed that all of them share the g-->c mutation at nucleotide 844 in exon 8 leading to an asp-->his substitution at amino acid 282 known as g6pd seattle. no additional differences have been detected among them nor with the common haplotype previously found for this variant. | 1996 | 8807321 |
| phylogenetic relationships of the canary islands endemic lizard genus gallotia (sauria: lacertidae), inferred from mitochondrial dna sequences. | phylogenetic relationships among species and subspecies of the canary island endemic lizard genus gallotia are inferred based on nucleotide sequences of fragments of 12s ribosomal rna and cytochrome b mitochondrial genes. the four morphologically established species have also been recognized at the molecular level. relative affinities among species follow an eastern-western geographic transect. the nearly extinct species gallotia simonyi from the most western island of el hierro is closely relat ... | 1996 | 8812306 |
| phlebotomus sergenti parrot, 1917: morphological and isoenzymatic comparisons of two natural populations from tenerife (canary islands, spain) and crete (greece). | samples of two phlebotomus sergenti natural populations from san juan (tenerife), representing the western edge of the distribution area of this species, and axos (crete) were collected. the morphological comparison showed marked differences in the lengths of parts of the male genitalia, female pharynx, and spermathecae. the isoenzyme study revealed characteristic monomorphic phenotypes for glucose phosphate isomerase, hexokinase, and phosphoglucomutase in the canarian specimens as compared with ... | 1996 | 8825445 |
| canary finches (serinus canaria) as an avian infection model for lyme borreliosis. | to investigate if passerine birds can be used as an avian model for lyme borreliosis, the borrelia burgdorferi sensu stricto strain sh2-82 was inoculated subcutaneously on canary finches (serinus canaria). spirochaetes could be detected in the blood by direct microscopy and an immunofluorescence assay (ifa) up to 2 weeks after the inoculation. dna amplification (pcr) revealed b. burgdorferi dna in the serum for up to 3 weeks, in the faeces up to 4 weeks, and from several internal organs at autop ... | 1996 | 8831827 |
| genetic relationship between the canary islanders and their african and spanish ancestors inferred from mitochondrial dna sequences. | nucleotide sequences of the hypervariable segment i of the control region of the mtdna were determined in 101 individuals: 54 canary islanders, 18 north african berbers, 18 spanish mainlanders and 11 sub-saharan guineans. in spite of the fact that only members of the fang tribe were analysed, nucleotide diversity in guineans (theta x 100 = 2.33) is one of the highest found in african populations. estimates of genetic contribution to the canarians from their putative parental populations based on ... | 1996 | 8865992 |
| island colonization and evolution of the insular woody habit in echium l. (boraginaceae). | numerous island-inhabiting species of predominantly herbaceous angiosperm genera are woody shrubs or trees. such "insular woodiness" is strongly manifested in the genus echium, in which the continental species of circummediterranean distribution are herbaceous, whereas endemic species of islands along the atlantic coast of north africa are woody perennial shrubs. the history of 37 echium species was traced with 70 kb of noncoding dna determined from both chloroplast and nuclear genomes. in all, ... | 1996 | 8876207 |
| environment modifies the testosterone levels of a female bird and its eggs. | past studies have shown that the yolk of the canary (serinus canaria) egg contains maternal testosterone, that its concentrations increase in the subsequently formed eggs of a clutch, and that testosterone influences development. the present study investigated 1) if the testosterone levels vary in the female during yolk formation; 2) how such putative variations may be related to the concentrations of maternal testosterone in the yolk; and 3) if environmental factors, such as day length, can mod ... | 1996 | 8900078 |
| inhibitory properties coexist with plasticity in the song system of the canary. | the expression of neuronal growth regulating factors (ni 35/250, gap-43) were studied immunohistochemically in the plastic telencephalic song system and in the cerebellum of the canary. in the myelinated song nuclei (hvc and ra) growth promoting and inhibiting molecules could be detected, whereas in the white matter tracts of the cerebellum only the neurite growth inhibitor could be detected. the morphodynamic effects of these molecules were assessed by in vitro assays on cryosections. neurites ... | 1996 | 8905681 |
| genetic heterogeneity in hispanic families with autosomal dominant juvenile glaucoma. | a gene for autosomal dominant, juvenile-onset, primary open angle glaucoma (glcia) has been previously mapped to 1q21-31 in several caucasian pedigrees. we studied two hispanic families with this disease to determine if their disease genes also map to this region. individuals were considered as being affected if they had 1op > 30 mmhg (without treatment) and glaucomatous optic nerve damage or visual field defects. persons older than 40 years with intraocular pressures < or = 21 mmhg and no evide ... | 1996 | 8905848 |
| host range, survival in dead hosts, cryopreservation, periodicity and morphology of plasmodium durae herman in experimental infections. | in experimental infections, fowl, duck, guineafowl and canary were refractory to plasmodium durae, which in japanese quail produced low and transient infections, but a high and long-lasting parasitaemia in a lady amherst pheasant. heart, blood and brain of dead hosts injected into turkeys, allowed the recovery and further passaging of the live parasite. this technique could be useful for the recovery of malaria parasites from suspect postmortem material. intravenous infection produced parasitaem ... | 1996 | 8917860 |
| skeletal muscle ultrastructural pathology in serinus canarius infected with plasmodium cathemerium. | serinus canarius infected with plasmodium cathemerium was used as an animal model in order to study the skeletal muscle compromise in malaria. pectoral muscle biopsies were obtained from 7 infected female birds. the transmission electron microscopic study showed alterations of contractile and sarcotubular systems, mitochondrial abnormalities, lysosomal proliferation and nuclear pyknosis. the sarcolemma looked disrupted and separated from the necrotic fibres. capillary abnormalities included endo ... | 1996 | 8929630 |
| house dust mites and der p i in tenerife (canary islands, spain): the relative importance of other non dermatophagoides spp mites. | house dust mites constitute the major etiologic factor causing sensitization and asthma its geographical distribution map is quite well known, although it is not yet complete. home environments world-wide show mites that mainly belong to the piroglyphidae family, the d. pteronyssinus specie being the predominant one. however others have also been considered of interest. | 1996 | 8939268 |
| blockade of nmda receptors in the anterior forebrain impairs sensory acquisition in the zebra finch (poephila guttata). | juvenile zebra finches (poephila guttata) learn song in two stages: during sensory acquisition, they memorize the song of an adult tutor, and during sensorimotor learning, they alter their vocalizations to match the stored song model. like many other forms of neural plasticity and memory formation, vocal learning in zebra finches is impaired by pharmacological blockade of nmda receptors, but the relevant nmda receptors have not yet been localized. during song development, one neural region that ... | 1996 | 8946423 |
| clinical presentation of acute q fever in lanzarote (canary islands): a 2-year prospective study. | the clinical manifestations of acute q fever may differ markedly from country to country. in this regard, fever and hepatitis seem to be the dominant clinical features of acute coxiella burnetii infection in lanzarote, canary islands. a possible interaction between environmental factors and some strains of c. burnetii could explain the different clinical presentations of acute q fever. | 1996 | 8953689 |
| genetic study in panaquire, a venezuelan population. | panaquire is a population in venezuela founded in 1733 by spaniards from the canary islands. in order to define the genetic characteristics of this population the following loci were studied: abo, rh (cc, d, ee), fy, k, jk, hb, esd, acp1, hp, tf, cp and alb. its sociohistorical features were also investigated. historic censuses reveal that ethnically blacks were the most important group in this village during the year 1800 (76%), followed by amerindians (9%), mulattoes (5%) and whites (7%). the ... | 1996 | 8956028 |
| seroprevalence of toxocariasis in children and adults in madrid and tenerife, spain. | a study on the seroprevalence of toxocariasis, using elisa with toxocara larval excretory-secretory antigens, was carried out on human populations in two regions of spain. sera from a population of 195 children from madrid and 143 children from santa cruz de tenerife (canary isles), showed a prevalence of 0% and 4.2% respectively. sera from a population of 272 adults from madrid and 803 adults from santa cruz de tenerife showed a prevalence of 3.6% and 17.4%. reasons for these differences in the ... | 1996 | 8960205 |
| mitochondrial dna sequence variation and phylogeography of pimelia darkling beetles on the island of tenerife (canary islands). | four morphological taxa of the beetle genus pimelia (coleoptera, tenebrionidae) are known to exist on the atlantic island of tenerife. we have obtained dna sequences for 61 individuals from these taxa across the island for a 200 bp long fragment of the mitochondrial coi gene. in addition, a restriction site polymorphism in the nuclear rrna its-1 sequence was identified and screened in a sample of these individuals using the enzyme kpn2i. the results were analysed using approaches which allow inf ... | 1996 | 8972079 |
| evaluation of osilinus attratus as a bioindicator organism to monitor oil pollution in the canary islands. | concentrations of n-alkanes and pahs in the visceral mass of the marine winkle osilinus attratus taken from three locations on the southeast coast of tenerife (canary islands, spain) over a two-year period, were evaluated at monthly intervals in order to assess if this small marine winkle may be used as bioindicador organism. factor analysis and cluster analysis were applied in order to determine if it was possible to relate sampling areas to potential sources of petroleum contamination. | 1996 | 8975815 |
| cross-protection test of an avian poxvirus isolated from houbara bustards. | an avian poxvirus was isolated previously from the houbara bustard (chlamydotis undulata). we carried out a cross-protection test on 66 captive-bred canaries. thirty-five canaries were vaccinated with a commercial canary poxvirus (cp) vaccine. three weeks later all 66 birds were assigned randomly to six different groups: group ia (n = 14) was vaccinated and challenged with houbara bustard poxvirus (hp) strain; group ib (n = 13) was vaccinated and challenged with a cp strain; group ic (n = 7) was ... | 1996 | 8980803 |
| cloning and expression pattern of hor v 9, the group 9 pollen isoallergen from barley. | in this study we report the cloning, sequence, and characterization of hor v 9 allergen cdnas from barley (hordeum vulgare) pollen. structural homologues of kentucky bluegrass (poa pratensis) group 9 pollen allergens were identified in a cdna library of barley pollen expressed mrnas. the hor v 9 cdna clone (hvp9742) contained an open reading frame encoding 313 amino acids which included a putative 27-residue signal peptide and one asparagine sequon for glycosylation. the mrna corresponding to cl ... | 1996 | 8982067 |
| the epidemiology of tuberculosis in gran canaria, canary islands, 1988-92: effectiveness of control measures. | since there is no national programme for tuberculosis control in spain and the epidemiological situation in this country is unknown, a programme against tuberculosis in gran canaria (canary islands) was started in 1987. | 1995 | 7495998 |
| evidence of canary droppings as an important reservoir of cryptococcus neoformans. | after preliminary results had shown the occurrence of cryptococcus neoformans in canary droppings in southern italy, the increasing epidemiological interest in cryptococcosis and the habitats of the agent led to more extensive studies. 180 samples of canary droppings were collected from pet shops and private households in two towns (messina and reggio calabria) of southern italy and culturally examined for c. neoformans. the examination was carried out with the help of the brown colour effect (b ... | 1995 | 7549156 |
| estrogens and non-estrogenic ovarian influences combine to promote the recruitment and decrease the turnover of new neurons in the adult female canary brain. | the higher vocal center (hvc) of the songbird forebrain exhibits persistent neurogenesis in adulthood, particularly in a region of the mediocaudal neostriatum that is associated with a subventricular layer of estrogen receptive cells. we asked whether estrogens might influence adult neurogenesis, by assessing the effect of ovariectomy on hvc neuronal production in the adult female canary. fifteen 1-year-old females were separated into groups of ovariectomized, estradiol-replaced ovariectomized, ... | 1995 | 7561828 |
| mitochondrial dna phylogeny and sequential colonization of canary islands by darkling beetles of the genus pimelia (tenebrionidae). | fifteen species of the darkling beetle genus pimelia (tenebrionidae: coleoptera) have been sequenced for a 365 b.p. portion of the mitochondrial cytochrome oxidase i gene. thirteen of these are endemic species inhibiting the canarian archipelago in the atlantic and the other two are continental conspecifics. this data set has been phylogenetically analysed by maximum parsimony and distance approaches and the resulting trees used to deduce sequential interisland colonization. this suggests patter ... | 1995 | 7568271 |
| epidemiology of allergic reactions in beekeepers: a lower prevalence in subjects with more than 5 years exposure. | beekeepers (bks) represent a high allergic risk population against hymenoptera because of their frequent exposure to bee stings. most published studies show different percentage of sensitization and systemic reactions with to another groups of population. with the aim to know the prevalence and type of allergic reaction in bks from the canary islands, 246 subjects were studied prospectively. a questionnaire was developed and skin test and specific ige determination against apis mellifera, vespul ... | 1995 | 7572542 |
| occupational rhinoconjunctivitis and bronchial asthma due to phoenix canariensis pollen allergy. | we report a case of occupational bronchial asthma and rhinoconjunctivitis caused by phoenix canariensis (pc) pollen. the canary palm is a type of palm tree, belonging to the arecaceae family, which is widely distributed in frost-free regions as an ornamental tree. our patient was referred because he suffered symptoms of bronchial asthma, rhinoconjunctivitis, and contact urticaria when pruning dried leaves from pc during the pollination months. the skin prick test (spt) with a pc pollen extract w ... | 1995 | 7677245 |
| telemedicine in the canary islands. | 1995 | 7723566 | |
| nathan zuntz (1847-1920)--a german pioneer in high altitude physiology and aviation medicine, part i: biography. | nathan zuntz (1847-1920) was a key person in the history of high altitude physiology and aviation medicine. as a professor of animal physiology at the landwirtschaftliche hochschule (agricultural university) in berlin from 1881 until 1918, he carried out laboratory studies on the changes in metabolism at rest and during exercise. to this end he, together with august julius geppert, developed the famous "zuntz-geppert'schen respirationsapparat" (zuntz-geppert respiratory apparatus) in 1885. in th ... | 1995 | 7726783 |
| peripheral basis for the auditory deficit in belgian waterslager canaries (serinus canarius). | recently, behavioural thresholds obtained in canaries of the belgian waterslager strain showed that these birds have an inherited auditory deficit. canaries of this strain have absolute auditory thresholds at frequencies above 2.0 khz that are as much as 40 db above the threshold of canaries of other strains. we obtained audiograms from cochlear microphonics and from compound action potentials from the 8th nerve of waterslager and non-waterslager canaries and compare these results to previous be ... | 1995 | 7744706 |
| [listeriosis in the nonpregnant adult during an epidemic outbreak on grand canary]. | twenty-two cases of community-acquired epidemic listeriosis were recorded from december 31st, 1991, to may 15th, 1993, at the nuestra señora del pino hospital, las palmas. the incidence during this outbreak was 31 times higher than the corresponding incidence in the last few years. twelve cases occurred in pregnant women and/or neonates and ten in non-pregnant adult individuals. our aim was to study the clinical, biological, radiological, and evolutive issues in non-pregnant adult patients. six ... | 1995 | 7754149 |
| [uroflowmetric nomogram in the adult population of canary islands]. | in order to know the uroflowmetric values of our healthy population, a uroflowmetry was made to 214 healthy subjects of both sexes. 75% of our group of volunteers collected mictional volumes under 300 ml. with no differences either by age or sex. the corresponding nomograms, in the form of percentile, for peak and mean flow in both sexes, were created. we found a progressive increase of peak and mean flow values with regard to mictional volume. time to peak flow is shorter in women than in men. ... | 1995 | 7771234 |
| central nervous system toxoplasmosis in roller canaries. | several birds in a flock of 40 roller canaries (serinus canaria) from an outdoor aviary in victoria, australia, developed central nervous system signs that included blindness, nystagmus, ataxia, and head rotation. four died, and four were euthanatized. two euthanatized birds were submitted for microscopic examination of tissues. brain lesions in both birds consisted of scattered foci of nonsuppurative meningoencephalitis with gliosis, mild to moderately extensive lymphocytic/plasmacytic perivasc ... | 1995 | 7794185 |
| glucose-6 phosphate dehydrogenase mutations and haplotypes in various ethnic groups. | mutations that produce glucose-6-phosphate dehydrogenase (g6pd) deficiency have been identified in samples from patients with hemolytic disease in the united states, and in g6pd-deficient samples from greece, the canary islands, the czech and slovak republics, south china, and in samples from the coriell cell repository. eight new mutations are described. particularly unusual were a nonsense mutation ("g6pd georgia"1284a), a deletion of six bases ("g6pd stony brook" 724-729 del) coding for two a ... | 1995 | 7803800 |
| cloning, sequencing and expression in escherichia coli of pha a 1 and four isoforms of pha a 5, the major allergens of canary grass pollen. | the pollen of canary grass, which was introduced as a pasture grass from europe, is a major allergen source in the external environment of southern australia. this study was performed to characterize the major recombinant allergens of canary grass pollen. it is anticipated that recombinant allergens may be useful in diagnosis and immunotherapy of grass pollen induced allergies. | 1995 | 8564724 |
| occurrence of salmonella in cold-blooded animals in gran canaria, canary islands, spain. | the occurrence of salmonella in endemic and subendemic species of lizard and frog of gran canaria, gallotia stehlini and rana perezi, as well as captive reptiles from other regions of the world was investigated. the occurrence of salmonella was statistically higher in endemic and subendemic species than in captive animals (p < 0.001). seventy strains of salmonella were isolated. s. berta and s. gran canaria were the most frequently isolated serotypes. the study of salmonella in gall-bladder cont ... | 1995 | 8572675 |
| thyroxine reduces the production rate of brdu-labeled cells in the ventricular zone of the adult canary brain. | when the canary reaches adulthood, neuron production continues in the lateral ventricular zone (vz) of the forebrain. the effect of thyroxine injection on the cell production rate in the vz during adulthood was studied immunohistochemically using bromodeoxyuridine (brdu). the rate of occurrence of brdu-labeled cells was reduced by thyroxine injection (1 mg/body). hyperthyroidism usually promotes increased mitotic activity, but in the present study this was not the case. the decrease in the numbe ... | 1995 | 8592639 |