| [recurrent chest wall abscess. result of a probable percutaneous infection with echinococcus multilocularis following a dormouse bite]. | an unusual form of inoculation and of clinical manifestation of alveolar echinococcosis in the subcutaneous tissue of the thoracic wall is described. in 1970 the patient was bitten by a dormouse (glis glis). thereafter multiple recurrent abscesses and fistulae developed over a period of 11 years in the thoracic wall and were drained repeatedly. several bacteriological and histological examinations revealed no specific cause until 1980. in 1983 radical surgical excision of the subcutaneous inflam ... | 1988 | 3413460 |
| seasonal changes in the testicular blood flow of seasonally breeding mammals: dormouse, glis glis, ferret, mustella furo, and fox, vulpes vulpes. | | 1973 | 4741692 |
| amplifying role of edible dormice in lyme disease transmission in central europe. | to determine whether the presence of edible dormice (glis glis) amplifies the risk of human infection by the lyme disease spirochete (borrelia burgdorferi), the capacity of dormice as reservoir hosts was compared with that of other potential reservoirs in a central european site where risk of human infection is intense. dormice appeared to be more heavily infested by subadult vector wood ticks (ixodes ricinus) than were other reservoir hosts. although their spirochete competence was similar to o ... | 1994 | 8014486 |
| complete mitochondrial dna sequence of the fat dormouse, glis glis: further evidence of rodent paraphyly. | the complete mitochondrial genome of the fat dormouse, glis glis, has been sequenced (16,602 bp). a total of 23 complete mitochondrial mammalian genomes have been taken into account for phylogenetic reconstruction. phylogenetic analyses were performed with parsimony, distance (stationary markov model), and maximum-likelihood methods. in all cases, data strongly support the paraphyly of rodents, with dormouse and guinea pig in a different clade from rat and mouse, reaching bootstrap values of 95% ... | 1998 | 9580978 |
| transmission of borrelia afzelii from apodemus mice and clethrionomys voles to ixodes ricinus ticks: differential transmission pattern and overwintering maintenance. | this study deals with the ecology of lyme borreliosis in europe. the relationships between borrelia burgdorferi sensu lato spirochetes, clethrionomys and apodemus rodent reservoirs and the ixodes ricinus tick vector were investigated during 16 consecutive months in an enzootic area in switzerland. cultivation of ear skin biopsies was used to isolate spirochetes from c. glareolus, a. sylvaticus, a. flavicollis and glis glis. borrelia infection was more frequently observed in clethrionomys than in ... | 1999 | 10070659 |
| lineage specificity of the evolutionary dynamics of the mtdna d-loop region in rodents. | this paper reports an intraorder study on the d-loop-containing region of the mitochondrial dna in rodents. a complete multialignment of this region is not feasible with the exception of some conserved regions. the comparative analysis of 25 complete rodent sequences from 23 species plus one lagomorph has revealed that only the central domain (cd), a conserved region of about 80 bp in the extended termination-associated sequences (etas) domain, adjacent to the cd, the etas1, and conserved sequen ... | 2002 | 11821908 |
| permanent genetic resources added to the molecular ecology resources database 1 february 2010-31 march 2010. | this article documents the addition of 228 microsatellite marker loci to the molecular ecology resources database. loci were developed for the following species: anser cygnoides, apodemus flavicollis, athene noctua, cercis canadensis, glis glis, gubernatrix cristata, haliotis tuberculata, helianthus maximiliani, laricobius nigrinus, laricobius rubidus, neoheligmonella granjoni, nephrops norvegicus, oenanthe javanica, paramuricea clavata, pyrrhura orcesi and samanea saman. these loci were cross-t ... | 2010 | 21565086 |
| seasonal prevalence of lyme disease spirochetes in a heterothermic mammal, the edible dormouse (glis glis). | in europe, dormice serve as competent reservoir hosts for particular genospecies of the tick-borne agent of lyme disease (ld) and seem to support them more efficiently than do mice or voles. the longevity of edible dormice (glis glis) and their attractiveness for ticks may result in a predominance of ld spirochetes in ticks questing in dormouse habitats. to investigate the role of edible dormice in the transmission cycle of ld spirochetes, we sampled skin tissue from the ear pinnae of dormice in ... | 0 | 24705325 |
| a taxonomic review of hymenolepidids (eucestoda, hymenolepididae) from dormice (rodentia, gliridae), with descriptions of two new species. | in present study the systematic and taxonomic position of hymenolepidids parasitizing rodents of the family gliridae from europe and central asia is discussed. hymenolepis myoxi is redescribed on the basis of the type material from the fat dormouse glis glis deposited in the collection of the museum für naturkunde, berlin, germany. significant corrections of morphologically distinctive characters attributable to h. myoxi include: (1) recognition of a rudimentary rostellar apparatus; (2) absence ... | 2017 | 28030358 |
| telomere dynamics in free-living edible dormice (glis glis): the impact of hibernation and food supply. | we studied the impact of hibernation and food supply on relative telomere length (rtl), an indicator for aging and somatic maintenance, in free-living edible dormice. small hibernators such as dormice have ∼50% higher maximum longevity than non-hibernators. increased longevity could theoretically be due to prolonged torpor directly slowing cellular damage and rtl shortening. however, although mitosis is arrested in mammals at low body temperatures, recent evidence points to accelerated rtl short ... | 2016 | 27535986 |
| the vector tick ixodes ricinus feeding on an arboreal rodent-the edible dormouse glis glis. | the reservoir competence and long life expectancy of edible dormice, glis glis, suggest that they serve as efficient reservoir hosts for lyme disease (ld) spirochetes. their arboreality, however, may reduce the probability to encounter sufficient questing ixodes ricinus ticks to acquire and perpetuate ld spirochetes. to define the potential role of this small arboreal hibernator in the transmission cycle of ld spirochetes, we examined their rate and density of infestation with subadult ticks thr ... | 2016 | 26670314 |
| telomeres are elongated in older individuals in a hibernating rodent, the edible dormouse (glis glis). | telomere shortening is thought to be an important biomarker for life history traits such as lifespan and aging, and can be indicative of genome integrity, survival probability and the risk of cancer development. in humans and other animals, telomeres almost always shorten with age, with more rapid telomere attrition in short-lived species. here, we show that in the edible dormouse (glis glis) telomere length significantly increases from an age of 6 to an age of 9 years. while this finding could ... | 2016 | 27883035 |
| the costs of locomotor activity? maximum body temperatures and the use of torpor during the active season in edible dormice. | measuring t b during the active season can provide information about the timing of reproduction and the use of short bouts of torpor and may be used as a proxy for the locomotor activity of animals (i.e., maximum t b). this kind of information is especially important to understand life-history strategies and energetic costs and demands in hibernating mammals. we investigated t b throughout the active season in edible dormice (glis glis), since they (i) have an expensive arboreal life-style, (ii) ... | 2017 | 28321493 |
| how to spend the summer? free-living dormice (glis glis) can hibernate for 11 months in non-reproductive years. | edible dormice are arboreal rodents adapted to yearly fluctuations in seed production of european beech, a major food source for this species. in years of low beech seed abundance, dormice skip reproduction and non-reproductive dormice fed ad libitum in captivity can display summer dormancy in addition to winter hibernation. to test whether summer dormancy, that is, a very early onset of hibernation, actually occurs in free-living dormice, we monitored core body temperature (tb) over ~12 months ... | 2015 | 26293446 |
| mass resorption as a mechanism of self-regulation of the edible dormouse (glis glis l., 1766) reproduction cycle at the periphery of the range. | | 2016 | 21221897 |
| behavioural and physiological consequences of male reproductive trade-offs in edible dormice (glis glis). | testosterone mediates male reproductive trade-offs in vertebrates including mammals. in male edible dormice (glis glis), reproductivity linked to high levels of testosterone reduces their ability to express torpor, which may be expected to dramatically increase thermoregulatory costs. aims of this study were therefore to analyse behavioural and physiological consequences of reproductive activity in male edible dormice under ecologically and evolutionary relevant conditions in the field. as we fr ... | 2010 | 20697882 |
| [regulation of endocrine pancreas secretions (insulin and glucagon) during the periodic lethargy-waking cycle of the hibernating mammal]. | in winter, hibernating mammals enter a long phase of lethargy which is characterized by low body temperature, depressed metabolism and minimal release of metabolic substrates from endogenous fuel stores. periodically, they spontaneously warm themselves to regain the euthermic state. these arousals are, by contrast, times of high release and consumption of endogenous substrates. insulin and glucagon may contribute to the control of both contrasting metabolic periods. the secretion and metabolic e ... | 1987 | 3301441 |
| fleas (siphonaptera) in the nests of dormice (gliridae: rodentia) in lithuania. | negative effects of flea (siphonaptera) parasitism on the host may be expressed in different ways. the aim of this study was to assess distribution of the flea fauna in nests of dormice in lithuania. nests of glis glis (l.), dryomys nitedula (pallas), and muscardinus avellanarius (l.) were collected from nest boxes in 2012 and 2013. fleas were collected from nests in the laboratory and put into plastic tubes with 70% ethanol. flea species were identified using morphological keys. from 400 nest b ... | 2015 | 26334823 |
| genetic detection of dobrava-belgrade hantavirus in the edible dormouse (glis glis) in central serbia. | hantaviruses are endemic in the balkans, particularly in serbia, where sporadic cases and/or outbreaks of hantaviral human disease have been reported repeatedly, and evidenced serologically. here, we present genetic detection of dobrava-belgrade virus (dobv) hantaviral sequences in wild rodents trapped in central serbia. all the animals were pre-screened serologically by indirect immunofluorescence (if) test and only those with a positive finding of hantaviral antigens were further tested by pol ... | 2015 | 24762257 |
| [variations of the glucose 6 phosphodehydrogenase activity at the level of the diencephalon and of the gonads of the dormouse (glis glis l.) during the annual cycle]. | activity levels of g6-pdh in the diencephalon and testes of glis glis during the annual cycle show comparable variations. in the autumn, this activity is low and the gonads are inactive. at the anset of hibernation, this activity increases and becomes maximal during the period preceeding awakening. at mid-hibernation, the seminiferous tubules display in important enzymatic activity. awakening is marked by a fall in enzymatic activity level that is a little more precosius of the diencephalon. the ... | 2002 | 137053 |
| [morphometric data on pineal gland of loir (glis glis) and lerot (elioyms quercinus) during the annual cycle]. | the important involution of the pineal gland of glis glis and eliomys quercinus during the months of july and august belongs to a polyglandular involution (anterior lobe of the hypophysis, male and female genital glands) characteristic of estivation. | 2002 | 126720 |
| is energy supply the trigger for reproductive activity in male edible dormice (glis glis)? | in edible dormice (glis glis) reproduction is synchronised with the intermittent masting of the european beech (fagus sylvatica). in years of mast failure dormouse males seem to anticipate future low food availability and fail to develop functional testes. we hypothesised that the availability of high-quality food is linked to male reproductive capacity, because of high male energetic demands during gonad maturation. we therefore evaluated the relationship between beech seed production and male ... | 2009 | 19430940 |
| isolation of encephalomyocarditis virus from dormice (myoxus glis) in italy. | two isolates of encephalomyocarditis (emc) virus (zrc 276ra/90 and zrc 292ra/90) were isolated from two dormice (myoxus glis) in tuscany, italy. the two isolates were lethal for laboratory mice and caused a rapid cytopathic effect characterized by rounded and wrinkled cells in both baby hamster kidney cells (bhk21) and african green monkey kidney cells (vero). we found neutralizing antibodies against emc virus in 408 (77%) of 529 domestic pigs (sus scrofa scrofa) and in 165 (49%) of 338 wild boa ... | 1995 | 8583644 |
| effects of bilateral superior cervical ganglionectomy on thyroid and gonadal functions in the edible dormouse glis glis. | 1. the annual profiles of plasma thyroid-stimulating hormone (tsh), thyroxine (t4), luteinizing hormone (lh) and testosterone (t) concentrations in control and ganglionectomized (scgx) dormice were analyzed to determine whether the pineal gland affects thyroid-gonadal interactions in response to the seasonal influence of environmental factors. 2. dormice ganglionectomized in september, around the time of prehibernation when hormonal activity is minimal had significantly disturbed annual cycles o ... | 1993 | 8095882 |
| identification of a natural cycle involving rickettsia typhi infection of monopsyllus sciurorum sciurorum fleas from the nests of the fat dormouse (glis glis). | in a mountainous area in the dinaric beech-fir forest of southern slovenia, summer nests of the european fat dormouse (glis glis) were collected. from these dormouse nests, 180 monopsyllus sciurorum sciurorum fleas were examined by polymerase chain reaction with primers for the rickettsia citrate synthase gene. samples from one nest yielded the expected 381 base pair dna product. the origin of the dna product was identified as rickettsia typhi by alui restriction fragment length polymorphism ana ... | 1994 | 7672059 |
| the neuroendocrine system in hibernating mammals: present knowledge and open questions. | the present review describes the distribution and the function-dependent reactivity pattern of those peptidergic and aminergic components of the neuroendocrine system of hibernating mammals that have been studied by histological, pharmacological and physiological techniques. particular attention has been paid to the intrinsic connectivity of the peptidergic apparatus and its input systems. since the reactivity patterns of the neuroendocrine system show remarkable fluctuations in relation to the ... | 1995 | 7553762 |
| dynamics of insulin release by perfused edible dormouse (glis glis) pancreas. seasonal variations. | in order to characterize seasonal variations of beta cell function in the edible dormouse (glis glis), the dynamics of insulin release were examined during perfusion of the isolated pancreas. the b cells exhibited biphasic insulin secretion; however, the dynamic response differed from that of the rat in that there was a steady-state second release phase. glucose-induced insulin release changed according to the seasons. with 16.8 mmol/l glucose, the average insulin release of the late phase was 3 ... | 1981 | 7016644 |
| insulin secretion in the hibernating edible dormouse (glis glis): in vivo and in vitro studies. | plasma glucose and insulin have been studied during lethargy and spontaneous arousal of hibernating edible dormouse. during lethargy blood glucose was low while plasma insulin remained at the same level as in other seasons. plasma glucose and insulin did not fluctuate along the phase of lethargy. during spontaneous arousal plasma insulin rose strongly from the 17 degrees c stage, reaching the higher values at 26 degrees c while blood glucose was only 85 mg/100 ml, then decreased at 37 degrees c. ... | 1984 | 6148180 |
| the autecology of small rodents and insectivores of the tribec mountain range. | small rodents and insectivores have become the main reservoirs of tick-borne encephalitis virus. in order, therefore, to demonstrate the dynamic and structural changes occurring in a natural focus of tick-borne encephalitis, information has been collected on the distribution, habitat, life-cycle, population density and extent of tick infestation of the rodents and insectivores that inhabit the tribec region and adjacent parts of the hronský inovec mountains. the following mammals are discussed: ... | 1967 | 5298539 |
| meal patterns of dormice. | meal patterns were studied in dormice (glis glis) kept at an ambient temperature of 25 degrees c. at this temperature there is no prolonged hibernation and the periodicity of cycles of food intake and body weight is about 2 months. the data on meal patterns were related to the level of food intake during repeated observation periods. the most pronounced changes were in meal frequency, but there were also significant increases in meal size when the animals ate more. postprandial correlations were ... | 1986 | 3740832 |
| further demonstration of the ambient temperature dependence of the annual biological cycles in the edible dormouse, glis glis. | in the male edible dormouse, it has been proposed that the annual temperature cycle is the major external factor triggering annual biological rhythms in this hibernating species. the present study was designed to explore (i) the effects of suppression of the annual thermoperiodic cycle under natural photoperiodic conditions, and (ii) the effects of acute exposure to a warm environment on basal plasma t4 levels observed during hibernation. the results of the first experiment demonstrate an absenc ... | 1989 | 2778130 |
| seasonal changes in thyroid-gonadal interactions in the edible dormouse, glis glis. | this study was conducted to determine changes in thyroid-gonadal interaction in the edible dormouse during the phase of the annual cycle that corresponds to the end of the breeding season (from june to september). we evaluated intra-hypothalamic luteinizing hormone-releasing hormone (lhrh) content, and plasma concentrations of luteinizing hormone (lh), testosterone, thyroid-stimulating hormone (tsh) and thyroxine (t4) in three groups of dormice: (1) controls; (2) dormice receiving sufficient t4 ... | 1992 | 1592910 |
| comparative aspects of circadian rhythms in homeotherms, re-entrainment after phase shifts of the zeitgeber. | re-entrainment of circadian activity of 3 avian species (fringillidae: fringilla coelebs, carduelis chloris, pyrrhula pyrrhula) and 4 mammalian species (rodentia: eutamias sibiricus, funambulus pennanti, glis glis, mesocricetus auratus), subjected to 12:12 h light-dark (ld) cycles as zeitgeber, was studied after shifting the ld cycle by different amounts (hours) and in different directions (advances and delays). the properties of the zeitgeber were changed by varying light intensity during dark- ... | 1978 | 700901 |
| seasonal variation in telomere length of a hibernating rodent. | small hibernating rodents have greater maximum lifespans and hence appear to age more slowly than similar-sized non-hibernators. we tested for a direct effect of hibernation on somatic maintenance and ageing by measuring seasonal changes in relative telomere length (rtl) in the edible dormouse glis glis. average rtl in our population did not change significantly over the hibernation season, and a regression model explaining individual variation in post-hibernation rtl suggested a significant neg ... | 2013 | 23389666 |
| chromosome banding pattern in fat dormouse and bank vole (mammalia: rodentia) from turkey. | the chromosome banding pattern (c-banding, agnor staining) was studied in isolated populations of two species of rodents from turkey, glis glis and myodes glareolus. a single nucleolar organizer region was localized in an autosomal pair in the complement of g. glis. centromeric c-heterochromatin blocks and seven pairs of nor-bearing autosomes were observed in the complement of m. glareolus. a metacentric y chromosome was found in the m. glareolus males examined. the detailed structure of karyoty ... | 2013 | 23767292 |
| genetic consequences of forest fragmentation for a highly specialized arboreal mammal--the edible dormouse. | habitat loss and fragmentation represent the most serious extinction threats for many species and have been demonstrated to be especially detrimental for mammals. particularly, highly specialized species with low dispersal abilities will encounter a high risk of extinction in fragmented landscapes. here we studied the edible dormouse (glis glis), a small arboreal mammal that is distributed throughout central europe, where forests are mostly fragmented at different spatial scales. the aim of this ... | 2014 | 24505390 |
| ways to measure body temperature in the field. | body temperature (tb) represents one of the key parameters in ecophysiological studies with focus on energy saving strategies. in this study we therefore comparatively evaluated the usefulness of two types of temperature-sensitive passive transponders (lifechips and iptt-300) and one data logger (ibutton, ds1922l) mounted onto a collar to measure tb in the field. first we tested the accuracy of all three devices in a water bath with water temperature ranging from 0 to 40°c. second, we evaluated ... | 2014 | 24802148 |
| it takes two to tango: phagocyte and lymphocyte numbers in a small mammalian hibernator. | immunity is energetically costly and competes for resources with other physiological body functions, which may result in trade-offs that impair fitness during demanding situations. endocrine mediators, particularly stress hormones, play a central role in these relationships and directly impact leukocyte differentials. to determine the effects of external stressors, energetic restraints and competing physiological functions on immune parameters and their relevance for fitness, we investigated leu ... | 2016 | 26431693 |
| the interrelationship of mycophagous small mammals and ectomycorrhizal fungi in primeval, disturbed and managed central european mountainous forests. | small forest dwelling mammals are considered to be major consumers and vectors of hypogeous ectomycorrhizal (ecm) fungi, which have lost the ability of active spore discharge. fungal spore dispersal by mycophagy is deemed an important process involved in forest regeneration, resilience and vitality, primarily based on evidence from australia and the pacific northwestern usa, but is poorly known for central european mountainous forests thus far. small mammal mycophagy was investigated by live tra ... | 2012 | 22466900 |
| survival rates in a small hibernator, the edible dormouse: a comparison across europe. | understanding how local environmental factors lead to temporal variability of vital rates and to plasticity of life history tactics is one of the central questions in population ecology. we used long-term capture-recapture data from five populations of a small hibernating rodent, the edible dormouse glis glis, collected over a large geographical range across europe, to determine and analyze both seasonal patterns of local survival and their relation to reproductive activity. in all populations s ... | 2011 | 23447711 |
| stopping the clock: neobiosis as a predecessor of mammalian hibernation and possible key to the abolition of aging. | a number of mammals undergo hibernation during their lifespan. the euthermal condition that occurs prior to hibernation is characterized by inhibition of cellular proliferation, reduction of stress reactivity, a decrease in metabolism, and changes in the immune system (seasonal thymus involution). analysis of data of young red voles (clethrionomys glareolus), common shrews (sorex araneus), and fat dormice (glis glis) while entering into the euthermal condition shows characteristic biphasic growt ... | 2010 | 20370485 |
| isolation, characterization and pcr multiplexing of polymorphic microsatellite markers in the edible dormouse, glis glis. | we isolated and characterized 10 dinucleotide microsatellite loci in the edible dormouse, glis glis (linnaeus). four multiplex panels were developed. loci were amplified in samples from two geographically distant populations (torgny in belgium and montseny in spain). all loci were polymorphic in spain but four were monomorphic in belgium. individuals from belgium and spain exhibited an average allelic diversity of 1.9 and 3.3 and an observed heterozygosity ranging from 0.08 to 0.47 and from 0.04 ... | 2009 | 21564778 |
| summer dormancy in edible dormice (glis glis) without energetic constraints. | average longevity in free-living edible dormice (glis glis) can reach 9 years, which is extremely high for a small rodent. this remarkable life span has been related to a peculiar life history strategy and the rarity of reproductive bouts in these seed eaters. most females (96%) reproduce only once or twice in their lifetime, predominantly during years of mast seeding of, e.g., beech, but entire populations can skip reproduction in years of low seed availability. surprisingly, in non-reproductiv ... | 2009 | 19034404 |
| high survival in poor years: life history tactics adapted to mast seeding in the edible dormouse. | edible dormice (glis glis) reproduce in years with beech mast seeding, but entire populations may skip reproduction in years when tree seeds, a major food resource of this small hibernator, are absent. we tested the hypothesis that the year-to-year variability in reproductive effort caused by this breeding strategy should lead to detectable differences in yearly survival rates. therefore, we analyzed capture-recapture data from animals occupying nest boxes, collected over nine years at two study ... | 2006 | 16637363 |
| cardiorespiratory and metabolic reactions during entrance into torpor in dormice, glis glis. | dormice voluntarily enter torpor at ambient temperatures ranging between 0-28 degrees c. this study describes heart rate, ventilation frequency, o2-consumption (defined as metabolic rate), co2-production and body temperature during entrance into torpor. their temporal relationship was analysed during the time course of metabolic depression at different ambient temperatures. body temperature and heart rate were measured in unrestrained dormice with implanted transmitter. ventilation frequency was ... | 2005 | 15781897 |
| influences of the feeding ecology on body mass and possible implications for reproduction in the edible dormouse (glis glis). | the edible dormouse (glis glis) is a small rodent and an obligate hibernator. dormice undergo strong fluctuations of reproductive output during years that seem to be timed to coincide with future food supply. this behaviour enables them to avoid producing young that will starve with a high probability due to food shortage, and to increase their lifetime reproductive success. aims of this study were to elucidate the extent to which feeding ecology in the edible dormouse has an impact on body mass ... | 2005 | 15645237 |
| energetic constraints on sexual activity in the male edible dormouse (glis glis). | the aim of this study was to examine to what extent reproductive activity in male edible dormice (glis glis) might be energetically constrained. demographic data, morphometric data, and oral body temperature (t(or)) measurements were collected in two study areas between 1993 and 2002 in southwest germany and combined with subcutaneous body temperature (t(sc)) registrations of captive dormice. t(sc) measurements were collected directly after emergence from hibernation (june) until the end of the ... | 2004 | 14608499 |
| fine distribution of clock protein in hepatocytes of hibernating dormice. | clock protein is a member of the bhlh-pas family of transcription factors, it is expressed in several tissues including the liver and is essential for normal circadian rhythms. in this study we investigate the distribution of clock protein in hepatocytes of euthermic and hibernating edible dormice glis glis as well as in hepatocytes taken from the hibernating animals submitted in vitro to experimental conditions mimicking the arousal process. our results demonstrate that clock protein is express ... | 2003 | 14514414 |
| comparative morphology of incisor enamel and dentin in humans and fat dormice (glis glis). | the structure of teeth in all living beings is genetically predetermined, although it can change under external physiological and pathological factors. the author's hypothesis was to indicate evolutional shifts resulting from genetic, functional and other differences. a comparative study about certain characteristics of incisors in humans and myomorpha, the fat dormouse (glis glis) being their representative as well, comprised measurements of enamel and dentin thickness in individual incisor seg ... | 2003 | 12974167 |
| disassembly of nuclear bodies during arousal from hibernation: an in vitro study. | in previous studies we demonstrated that during hibernation cell nuclei contain structural constituents usually absent in euthermia. the rapid disappearance of such nuclear bodies upon arousal makes very difficult the in vivo investigation of the disassembly process, which could clarify their functions in nuclear metabolism in the hibernator. in the present study we subjected liver samples taken from hibernating edible dormice ( glis glis) to different in vitro experimental conditions: at 4 degr ... | 2001 | 11862454 |
| nucleoli undergo structural and molecular modifications during hibernation. | the nucleolus is a very dynamic structure able rapidly to adapt its activity to the cellular metabolic state. an interesting physiological model characterized by drastic modifications of cellular metabolism is represented by hibernating animals. in the present study we investigated the hepatocyte nuclei of euthermic and hibernating edible dormice (glis glis) with the aim of revealing, by means of ultrastructural and immunocytochemical analyses, possible modifications of nucleolar components duri ... | 2000 | 11151681 |
| comparison of hibernation, estivation and daily torpor in the edible dormouse, glis glis. | three major forms of dormancy in mammals have been classified: hibernation in endotherms is characterised by reduced metabolic rate (mr) and body temperature (tb) near ambient temperature (ta) over prolonged times in the winter. estivation is a similar form of dormancy in a dry and hot environment during summertime. daily torpor is defined as reduced mr and tb lower than 32 degrees c, limited to a duration of less than 24 h. the edible dormouse (glis glis) is capable for all three distinct forms ... | 2000 | 11128441 |
| nuclear bodies are usual constituents in tissues of hibernating dormice. | in previous studies we demonstrated in several tissues of the hazel dormouse muscardinus avellanarius that during hibernation cell nuclei contain particular structural constituents absent in euthermia. in the present study we examine the same tissues in euthermic and hibernating individuals of the edible dormouse glis glis in order to investigate possible modifications of nuclear structural constituents occurring during hibernation in this species. edible dormice were captured in the wild and ma ... | 1999 | 10096671 |
| suppression of annual plasma testosterone and thyroxine cycles in the edible dormouse glis glis under constant photoperiod at 24 degrees c. | exposure of male edible dormice all year round to an unvarying photoperiod and warm temperature disrupted their biological cycles; hibernation was almost completely suppressed, and short lived infradian cycles of body weight, and of plasma testosterone and thyroxine were measured instead of the normal annual pattern. | 1986 | 3948972 |
| relationships between spontaneous food intake and metabolic activities in the dormouse (glis glis l.). | 1. the relationships between food intake self-selection and liver substrates (glycogen, fat) or activities of pyruvate kinase, glucose-6-phosphate dehydrogenase, malic enzyme, acetyl coa carboxylase, glucose-6-phosphatase and phosphoenolpyruvate carboxykinase were determined during the spontaneous variations of body weight in the dormouse. 2. the results show that during the phase of increasing body weight, carbohydrate intake and enzyme activities involved in lipogenesis are on a high level. 3. ... | 1978 | 318373 |
| [histoenzymologic study of the adrenal gland of the dormouse during the annual cycle]. | the histoenzymologic study of the adrenals in glis glis was realized for 4 enzymatic activities (acid phosphatase, glucose 1 phosphate dehydrogenase, delta5 3beta-hydroxysteroid dehydrogenase and cholinesterase) completed by the simultaneous dosage of glucose-6-phosphate dehydrogenase. the histophotometric measures made it possible to differentiate the enzymatic activities of the different zones of the adrenal cortex and to show the persistance of an important activity of the zona fasciculata an ... | 1976 | 1028446 |
| periodicity of hibernation of dormice (glis glis) maintained under controlled conditions. | | 1976 | 1260566 |
| food self-selection during spontaneous body weight variations in the dormouse (glis glis l.). | | 1976 | 7406 |
| electrically induced behavior and neural specificity in ground squirrels and dormice. | electrical stimulation of the lateral hypothalamus in 2 species of hibernator, dormice (glis glis) and ground squirrels (spermophilus lateralis), suggests that induced behaviors may reflect activation of specific neural systems, rather than merely activation of a single central mechanism interacting with internal and external cues and past experience (prepotency hypothesis). in dormice, the stimulation induced feeding on powdered food; in squirrels it induced either feeding or picking up of food ... | 1986 | 3786520 |
| spontaneous and experimental variations in body weight, food intake and metabolic rate in captive dormice (glis glis). | captive dormice (glis glis) showed spontaneous cyclical fluctuations in body weight that were not synchronous between animals and not directly related to season. presenting the animals with a varied and palatable (cafeteria) diet for short periods caused marked increases in energy intake and body weight, and higher levels of oxygen consumption (v02). the level of hyperphagia was fairly constant, but the rise in v02 during cafeteria feeding varied (20-80%) according to season, being greatest in t ... | 1986 | 2871968 |
| cycles of body fat in hibernators. | this paper reviews data on seasonal changes in body fat of mammalian hibernators. it then presents data on the fat cell number and size in the retroperitoneal and gonadal fat depots of dormice, glis glis, over the course of their body weight cycles. enlargement of fat cell size is the principal way that hibernators get fat. the hibernator cycle may provide a way of discovering whether regulation of fat level is achieved through regulation of total mass of fat or through regulation of the size of ... | 1985 | 4066127 |
| glucagon secretion in the hibernating edible dormouse (glis glis). | plasma glucose and glucagon concentrations were measured in edible dormice during the bout of hibernation, arousal and active periods. during lethargy, plasma glucose and glucagon were low, compared to active values and did not fluctuate throughout the phase. during rewarming, plasma glucose regularly increased from 17 degrees to 37 degrees c while plasma glucagon rose after the 17 degrees c stage and reached the higher values at 26 degrees c, then slightly decreased at 37 degrees c. during arou ... | 1985 | 2864168 |
| nervous system ganglioside composition of normothermic and hibernating dormice (glis glis). | the ganglioside pattern of seven different regions, olfactory bulb, forebrain cortex, midbrain (corpora quadrigemina), cerebellum, brain stem, pons and spinal cord, of nervous system of normothermic and hibernating dormice (glis glis) were investigated by two dimensional thin layer chromatography and densitometric quantification. up to thirty different ganglioside spots were resolved, fifteen of which belonging to alkali labile species. alkali labile gangliosides were present in all the regions ... | 1984 | 20488094 |
| brain gangliosides in hibernating dormice (glis glis) and cold-exposed laboratory mice. | the concentration of proteins, sialo-glycoproteins and gangliosides and the ganglioside composition of 8 brain regions from normothermic and hibernating fat dormice (glis glis) and from laboratory mice being acclimated to 6, 22 and 28 degrees c were investigated. during hibernation the concentration of sialo-glycoproteins and gangliosides decreased significantly in brain of dormice; the protein content remained uninfluenced. cold-exposure of laboratory mice yielded generally a slightly decreased ... | 1984 | 6467899 |
| external factors controlling annual testosterone and thyroxine cycles in the edible dormouse glis glis. | annual patterns of hibernation, body weight, plasma testosterone and thyroxine were measured in two groups of edible dormice exposed to a constant photoperiod and to either environmental temperature (i), the four functions displayed annual cycles and the two hormonal cycles were parallel and restricted to the aroused state, while in group ii only irregular infradian fluctuations were observed. however, a body temperature of 30 degrees c remained the critical lower limit enabling the start of the ... | 1984 | 6141026 |
| spontaneous obesity and weight loss: insulin binding and lipogenesis in the dormouse. | obese dormice (glis glis) become anorexic during the weight loss phase of the 2-mo (infradian) body weight cycle. we have shown previously that this phase is characterized by severe insulin resistance, manifested by impaired insulin-stimulated glucose utilization in isolated adipocytes. contrary to other obesity models, the insulin resistance was not accompanied by hyperinsulinism. in the present study, impaired lipogenesis was associated with decreased maximal insulin-binding capacity (due to a ... | 1983 | 6351640 |
| spontaneous obesity and weight loss: insulin action in the dormouse. | dormice (glis glis) undergo spontaneous cyclic changes in food intake and body weight. these infradian cycles with a periodicity of about 2 mo are endogenously controlled, since they persist in conditions of constant temperature and photoperiod. to evaluate the role of insulin as an effector of hyperphagia and fattening in dormice, experiments were conducted to study pancreatic function and adipose tissue metabolism during several phases of the infradian cycle. during the weight loss phase, peri ... | 1983 | 6351639 |
| pituitary beta-endorphin content during spontaneous food intake and body weight cycles in the dormouse, glis glis. | pituitary beta-endorphin content was measured in dormice during several distinct phases of the infradian body weight cycle. no significant differences in opiate content among groups were found. it appears unlikely that pituitary concentrations of beta-endorphin have etiological significance in the development of spontaneous obesity in hibernators. | 1983 | 6312509 |
| annual plasma testosterone and thyroxine cycles in relation to hibernation in the edible dormouse glis glis. | twelve male edible dormice, captured in the autumn of 1979, were studied for 2 years under natural lighting in an animal enclosure with permanently open windows, at montpellier, in southern france (latitude 43 degrees 50' n). ambient temperature fluctuated annually between +4 and 27 degrees, and the photoperiod between 10l:14d and 16l:8d. another group of 26 animals, captured in the autumn of 1980, was observed under the same conditions for 1 year. body weight and plasma testosterone and thyroxi ... | 1983 | 6884750 |
| seasonal effect of catecholamines on glucose-induced insulin secretion in the edible dormouse (glis glis l.): in vivo and in vitro studies. | the results of the present study support the view that catecholamines are important for insulin secretion during the annual cycle of the edible dormouse exposed to seasonal changes in southwest france. glucose tolerance tests and perfusion of the isolated pancreas have shown that in spring and summer, the b cell secretion mechanism is less sensitive to glucose than in other seasons. in spring and summer, insulin secretion induced by glucose is enhanced after in vivo and in vitro phentolamine tre ... | 1983 | 6343181 |
| insulin binding and glucose oxidation in edible dormouse (glis glis) adipose tissue: seasonal variations. | | 1981 | 7026362 |
| infradian cycles in glucose utilization and lipogenic enzyme activity in dormouse (glis glis) adipocytes. | | 1981 | 7286625 |
| persistence of infradian body weight cycles in castrated dormice (glis glis). | male dormice were castrated at 2 phases of their infradian body weight cycles. no consistent changes were found in cycle period, amplitude, or absolute weights of the dormice following castration. unlike other mammals, body weights of dormice appear unaffected by castration. although both body weight and reproductive condition vary on an infradian basis, the changes in body weight appear to be programmed independently from changes in gonadal function. | 1981 | 7286133 |
| efficiency of food utilization during body weight gain in dormice (glis glis). | during spontaneous body weight gain in dormice, glis glis, progressive increases in the efficiency of food utilization as defined by weight gain (g)/food intake (g), and parallel increases in mean daily food intake were observed. towards the end of the weight gain period, there was an abrupt drop in feeding efficiency with no significant change in food intake even when the latter was expressed relative to an index of each animal's "metabolic mass" (body weightkg0.62). animals whose body weight i ... | 1980 | 7413775 |
| seasonal variations of insulin sensitivity in edible dormouse (glis glis) adipocytes. | | 1979 | 488686 |
| seasonal variations in plasma glucose and insulin concentrations after glucose loading in the edible dormouse (glis glis l.). | glucose tolerance tests made in the edible dormouse showed annual variations in b cell secretory capacity, associated with glucose tolerance changes. 1. during autumn and winter, the b cell is sensitive to glucose, and insulin regulates the high peripheral consumption of this hexose. 2. at the beginning of spring, insulin secretion decreases and glucose tolerance is impaired. in june, the b cell response si low or absent and a poor tolerance to glucose still persists. 3. the variations in b cell ... | 1979 | 501667 |
| [comparative bioacoustical study of diurnal and nocturanl rodents from closed ranges]. | studies have been made on the evoked potentials at the level of the colliculus inferior in the nocturnal rodent glis glis and diuranl one--eutamias sibiricus. in g. glis, the evoked potentials were recorded in a wide range of sonic and ultrasonic frequencies up to 90 kc, while in e. sibiricus these potentials were recorded in a range of frequencies up to 60 kc. the auditory threshold curves for g. glis exhibited two areas of minimum thresholds-- a low frequency area and an area at a boundary bet ... | 2007 | 629117 |
| mammalian mitochondrial d-loop region structural analysis: identification of new conserved sequences and their functional and evolutionary implications. | this paper reports the first comprehensive analysis of displacement loop (d-loop) region sequences from ten different mammalian orders. it represents a systematic evolutionary study at the molecular level on regulatory homologous regions in organisms belonging to a well defined class, mammalia, which radiated about 150 million years ago (mya). we have aligned and analyzed 26 complete d-loop region sequences available in the literature and the fat dormouse sequence, recently determined in our lab ... | 1997 | 9461386 |
| life history written in blood: erythrocyte parameters in a small hibernator, the edible dormouse. | the oxygen delivery system is one major determinant of the performance of vertebrates and responds sensitively to a variety of internal and environmental factors. to understand physiological mechanisms underlying variations of fitness, we investigated effects of demanding conditions associated with certain life-history events, food availability, and population density on the oxygen delivery system in free-ranging edible dormice (glis glis). we sampled blood (n = 248) and urine (n = 319), perform ... | 2017 | 28756562 |
| protection against fat cell hyperplasia in a hibernator, glis glis. | dormice, glis glis, were fed a high-fat diet for 11 mo in one experiment: in another experiment they were fed a high-fat diet for 5 mo, either at room temperature (21.5 degrees c) or in a warm room (27 degrees c). only in the latter group did adipocyte hyperplasia occur; this was significant in all the fat depots studied (inguinal, retroperitoneal, and gonadal). in the other groups there was no evidence of fat cell hyperplasia, despite weight gains from approximately 160 g (peaks on chow diet) t ... | 1987 | 3661752 |
| autoradiographic investigations on sialoglycoconjugates in the cns of normothermic and hibernating fat dormice (glis glis). | | 1987 | 3107059 |
| glucose oxidation by adipose tissue of the edible dormouse (glis glis) during hibernation and arousal: effect of insulin. | 1. the effect of insulin on u-14c-glucose oxidation by adipose tissue isolated from hibernating or arousing edible dormouse has been studied. 2. co2 production derived from radioglucose was analysed point by point during in vitro rewarming (from 6 to 37 degrees c). 3. the rate of temperature increase was 2 degrees/5 min in order to mimic the rate of rewarming during the spontaneous arousal of the dormouse. 4. insulin did not increase the glucose oxidation by the adipose tissue from hibernating d ... | 1987 | 2889571 |
| effects of castration and thyroidectomy on the annual biological cycles of the edible dormouse glis glis. | the annual cycle of hibernation, body weight, and plasma testosterone and thyroxine levels were compared in 7 orchidectomized and 16 intact dormice under natural conditions, and in 21 thyroidectomized and 23 intact dormice exposed to a 12-hr light and 12-hr darkness photoperiod under natural temperatures. hibernation was not affected by either orchidectomy or thyroidectomy, nor did thyroidectomy alter the annual body weight cycle, which, however, was obliterated by orchidectomy. as regards endoc ... | 1986 | 3781234 |
| [seasonal fluctuations of food intake and bodyweight in the dormouse glis glis (author's transl)]. | cycles of body weight lasting a few weeks occurred in dormice fed ad libitum, throughout the year with the same food. the pattern of the fluctuations suggests an oscillation between an upper and a lower limit. when the lower limit is reached, compensatory mechanisms acting on the food intake are induced which cause an increase in body weight to the upper one; when this upper limit is reached, other mechanisms cause the body weight to decrease to the lower one. thus, body weight and variations in ... | 1975 | 1223265 |
| [glucose-6-phosphate dehydrogenase and pentose pathway in the hibernating dormouse glis-glis (l.)]. | | 1974 | 4216424 |
| [feeding behavior and weight variation in a hibernator: the dormouse, glis glis]. | | 1974 | 4470405 |
| [circannual variations in body weight regulation in the dormouse glis glis]. | | 1974 | 4283105 |
| [seasonal changes in fatty acids and lipogenetic activity of some organs of the active and normothermic hibernant, the dormouse (glis glis l)]. | | 1972 | 4662008 |
| [seasonal variations and metabolic orientation of some biochemical constituents of carbohydrate metabolism of the active dormouse, glis-glis (l.)]. | | 1972 | 4338670 |
| [cannulation of the aorta in the dormouse (glis glis)]. | | 1972 | 5081458 |
| [redescription of the heligmosomid of the dormouse (glis glis l.)]. | | 2003 | 5393062 |
| [studies on the kidney of the dormouse (glis glis l.) in hibernation and in summer wakefulness. v. electron microscopical studies on the proximal tubules with special regard for thesaurosis]. | | 1967 | 5591461 |
| [studies on the kidney of the dormouse (glis glis l.) in hibernation and in summer wakefulness. iv. electron microscopic findings on glomeruli of young animals]. | | 1967 | 5590646 |
| [nycthemeral rhythm of the oxygen consumption of the dormouse (glis glis) in the autonomic awake and active state]. | | 1966 | 4225074 |
| [studies on the kidney of the dormouse (glis glis l.) during hibernation and the summer waking state. 3. glomerular permeability increase and its submicroscopic principle]. | | 1965 | 14306488 |
| [comparative studies on the kidney of the dormouse (glis glis l.) in winter hibernation and summer wakefulness. ii. substrate and enzyme histochemical findings]. | | 1964 | 14338286 |
| [comparative studies on the kidney of the dormouse (glis glis l.) in winter hibernation and summer wakefulness. i. light microscopic and histometric findings and their correlation to the biology of winter hibernation]. | | 1964 | 14338285 |
| [experimental susceptibility of the dormouse (glis glis l.) for kala-azar. preliminary report]. | | 1960 | 13775369 |
| [electrophoretic studies on the serum of loirs (glis glis) after irradiation and in hibernation]. | | 1957 | 13467533 |
| [cytodynamic of the testes and epididymis of the dormouse (myoxus glis l., glis glis l.)]. | | 1956 | 13338609 |