| [the lice of the gerbils of tajikistan]. | 2606 gerbils of four species from tajikistan were examined. on them there were found over 14 thousand sucking lice of 10 species, four of which are typical to gerbils. hoplopleura merionidis ferris is a mongolian-turkestan species, which in central asia parasitizes meriones meridianus pallas and m. unguiculatus milne-edw. and in middle asia--m. meridianus and m. erythrourus gray, seldom m. tamariscinus pallas. polyplax chinensis ferris, a parasite of m. meridianus, is a mongolian-turkestan speci ... | 1979 | 95816 |
| the fine structure of the parotid gland of the mongolian gerbil, meriones meridianus. | the parotid gland of the mongolian gerbil, meriones meridianus, was examined by the electron microscopy. a peculiar feature of the serous acinar cells in that mature secretory granules have a bipartite substructure consisting of a centrally-located large dense homogeneous core and the peripheral rim of a less dense, fibrillo-granular matrix. the latter is histochemically revealed to be rich in acid mucosubstance while the former may be mainly composed of zymogenic materials because of its dense ... | 1975 | 1200783 |
| [duration and character of the course of cutaneous leishmaniasis in the midday gerbil (meriones meridianus pall.)]. | the development of the infection process during cutaneous leishmaniosis was traced in one midday gerbil (meriones meridianus pall). the gerbil fell ill with cutaneous leishmaniosis after the feeding of san flies of phlebotomus papatasi and ph. mongolensis on it. the incubation process of the disease was less than 23 days. leishmaniosic process began at the base of the concha auriculae and caused the destruction of ear tissues. the complete recover set in 67 days after the infection. thus, the in ... | 1975 | 1221346 |
| [change in the glycogen level in the liver, heart and skeletal muscles of rodents during exposure to plague toxin]. | three-hours intoxication induced by sublethal doses of autolysate or of fraction ii of pasteurella pestis ev in albino rats, guinea pigs and meriones meridianus nogaiorum heptn. resulted in a decrease of glycogen content in liver and calf muscles. in albino rats which are highly sensitive to plague toxin, this decrease was more significant compared to more resistant guinea pigs. under the action of plague toxin on myocardium of meriones and guinea pigs, glycogen content decreased while in albino ... | 1971 | 5317618 |
| [parasitic contacts between the great, red-tailed and midday gerbils in the muyun-kum]. | interspecies epizootic parasitic contacts between rodents, bearers of plague in mujunkums, have been studied. rhombomys opimus, meriones meridianus and m. libicus were marked with different radioactive isotopes. a bilataral exchange with fleas between great gerbils and rodents of the genus meriones has been established. the exchange proceeded in the direction from rodents of the genus meriones to great gerbils. theoretically each rodent of meriones meridianus and m. libicus fallen ill with plagu ... | 1980 | 6445533 |
| the ultrastructure of rapid-frozen, substitution fixed parotid gland acinar cells of the mongolian gerbil (meriones meridianus). | the ultrastructure of gerbil parotid gland acinar cells studied by rapid freezing in liquid nitrogen and freeze-substituting with oso4 was similar in general to conventionally prepared tissue, but different in several aspects. acceptable preservation was limited to about 10 microgram of the surface; the secretory granule membrane was a single dense line, while all others were trilaminar; the dense-cored secretory granule had a rim of low density which was homogeneous; there were many continuous ... | 1980 | 6996469 |
| [the effect of trace elements on the infectious process in plague in an experiment]. | the influence of mn, fe, co, ni, cu and zn on experimental yersinia pestis infection in three species of gerbils (rhombomys opimus, meriones meridianus, m. tamariscinus) under conditions, imitating natural biogeochemical anomalies, was studied. the addition of co and ni to the fodder given to the animals for the period of 2-4 weeks prior to infection aggravated the course of infection. in similar experiments cu, fe and mn aggravated or, on the contrary, inhibited the development of infection, de ... | 2000 | 10876891 |
| [geographical divisions of rat transmissible diseases]. | in order to prevent rat transmissible diseases, it is necessary to know the geographical distribution of rats, their external parasitic arthropod and rat-borne disease in human, and to make a graph of geographical division. stratified sampling was conducted by county to capture rats, and to sort out flea for identification of their genus and species. a total of 55,064 rats sorting as 6 families, 17 genera and 21 species were captured, and a total of 34,733 flea sorting as 4 families, 25 genera a ... | 2001 | 11321961 |
| the effect of behavioural interactions on the transfer of fleas (siphonaptera) between two rodent species. | the transfer of fleas between the house mouse, mus musculus, and the midday jird, meriones meridianus, through social contacts was studied by performing interspecific dyadic encounters on a neutral arena. m. meridianus and m. musculus exchanged parasites through social contacts. the intensity of this exchange was higher between mice and adult male and young jirds than between mice and adult female jirds. the pattern of behavioural interactions was the main determinant of the intensity of flea ex ... | 2001 | 11813655 |
| meriones meridianus and lagurus lagurus as alternative definitive hosts of echinococcus multilocularis and e. granulosus. | the utilization of meriones meridianus and lagurus lagurus as alternative definitive hosts for echinococcus multilocularis and e. granulosus was investingated. tapeworm stage development of e. multilocularis was observed and their recovery rate was determined in the small intestine of m. meridianus and l. lagurus. these were compared with those in golden hamsters, which are known as alternative definitive hosts. the animals were treated with ptba (prednisolone tertiary butylacetate) and pa (pred ... | 2002 | 11871149 |
| [comparative observation on experimental infection with echinococcus multilocularis in cricetulus migratorius and meriones meridianus]. | to search for an animal model with higher susceptibility to echinococcus multilocularis and shorter experimental period. | 1998 | 12078223 |
| [on listeriosis in rhombomys and meriones meridianus]. | | 1961 | 13767452 |
| epidemiology of helicobacter infection in wild rodents in the xinjiang-uygur autonomous region of china. | helicobacter species were detected in the feces of wild rodents captured in qiemo and ruoqiang in the xinjiang-uygur autonomous region of china by polymerase chain reaction and 16s rrna partial sequence analysis. forty-four wild rodents, including one przewalski's gerbil (brachiones przewalskii), three northern three-toed jerboas (dipus sagitta), one long-eared jerboa (euchoreutes naso), 34 midday gerbils (meriones meridianus), two short-tailed bandicoot rats (nesokia indica) and three great ger ... | 2004 | 15386108 |
| [study on the epidemiological characteristics of hemorrhagic fever with renal syndrome in inner mongolia]. | in order to better understand the epidemiological features of hantviruses in inner mongolia. | 2007 | 18396665 |
| [study on the situation of plague in junggar basin of china]. | to understand the distribution, fauna, population structure of host animals and their parasitic fleas as well as popular dynamic of animal plague of natural plague foci in junggar basin. | 2008 | 18686853 |
| [microbial nitrogen fixation in the gastro-intestinal tract of kalmykia gerbils (meriones. tamariscinus and meriones meridianus)]. | the nitrogen-fixing activity, nitrogen (n) and carbon (c) contents, and the number of microorganisms in the forestomach, cecum, and segmented intestine were detected in two gerbil species, granivorous meriones meridianus and m. tamariscinus, which consume a large amount of green parts of the plants. m. meridianus had higher levels of nitrogen-fixation activity in all investigated parts of the gastro-intestinal tract compared with m. tamariscinus. the highest levels were detected in the colon of ... | 2010 | 21077365 |
| [X-ray irradiation against Echinococcus multilocularis protoscoleces in vitro]. | To explore the effect of X-ray irradiation on Echinococcus multilocularis protoscoleces in vitro. | 2011 | 21970112 |
| survey of wild and domestic mammals for infection with leishmania infantum following an outbreak of desert zoonotic visceral leishmaniasis in jiashi, people's republic of china. | in 2008 and 2009, an outbreak of desert-subtype zoonotic visceral leishmaniasis occurred in jiashi county, xinjiang, china. so far, no animal reservoir has been identified for this type of visceral leishmaniasis. therefore, we surveyed the most common mammals (wild and domestic) for leishmania infections during the outbreak in 2008 and 2009 in order to identify the source of the visceral leishmaniasis in this region. spleen, liver, bone marrow and blood samples collected from 86 wood mice (apode ... | 2015 | 26177101 |
| seasonal changes in the genetic diversity of two rodent populations, midday gerbil (meriones meridianus) and northern three-toed jerboa (dipus sagitta), detected by issr. | seasonal changes in genetic diversity of meriones meridianus and dipus sagitta populations in the ningxia hui autonomous region were monitored using inter-simple sequence repeats. there were 45 discernible dna fragments isolated from 33 samples of m. meridianus, and 25 from 40 samples of d. sagitta. the differences in gene frequencies are statistically significant for some alleles. nei's index revealed that the greatest genetic differentiation was distributed within the seasonal groups. nei's an ... | 2012 | 22139460 |
| myocoptid mites (acariformes: myocoptidae) of the fauna of the former ussr. | mites of the family myocoptidae (acariformes: sarcoptoidea) of the former ussr are revised based on the collection of the zoological institute ras (st. petersburg, russia). seventeen described species are recorded. four species are described as new for science: trichoecius dubininae sp. nov. from lasiopodomys gregalis (pallas) (rodentia: cricetidae) from russia (chelyabinsk prov., type locality), kazakhstan and kirghizia, t. lemmus sp. nov. from lemmus sibiricus (kerr) (rodentia: cricetidae) fro ... | 2016 | 27988689 |
| [care of young, aggressiveness, and secretion of testosterone in male rodents: a correlation analysis ]. | to test the current hypotheses on the relationship between the mating system, reproductive strategy, aggression, and secretion of testosterone, a comparative study of interactions in pair encounters, the level of parental care, and the gonadal testosterone level in males was performed in six rodent species (clethrionomys rutilus, meriones meridianus, microtus arvalis, lagurus lagurus, lasiopodomys mandarinus, and meriones unguiculatus) with different types of spatial-and-ethological population s ... | 2016 | 25510112 |
| [epidemics and risk factors of plague in junggar basin, xinjiang uygur autonomous region, 2007-2016]. | objective: to explore the epidemic situation of animal plague in junggar basin natural plague foci. methods: data on epidemics of plague and on population involved, as well as results on antibodies and pathogens, were analyzed. samples on animals and vectors were collected from 18 counties in junggar basin plague natural foci between 2007 and 2016. results: the density of rhombomys (r.) opimus was temporally fluctuant, from 2.1/hm(2) to 22.6/hm(2) respectively. however, the spatial distribution ... | 2017 | 29060987 |
| delayed threshold response of a rodent population to human-induced landscape change. | theory predicts that due to their resilience, ecosystems and populations are expected to respond to environmental changes not gradually, but in a nonlinear way with sudden abrupt shifts. however, it is not easy to observe and predict the state-and-transition dynamics in the real world because of time lags between exogenous perturbations and species response. based on yearly surveys, during 21 years (1994-2014), we have studied population dynamics of a desert rodent (the midday gerbil, meriones m ... | 2016 | 27660203 |
| the complete mitochondrial genome of meriones meridianus (rodentia: cricetidae) and its phylogenetic analysis. | meriones meridianus belongs to the genus meriones in gerbillinae. total length of complete mitochondrial genome of m. meridianus is 16,376 bp and the heavy strand contains 32.8% a, 13.1% g, 25.3% c and 28.8% t. sequences of protein-coding genes are 11,341 bp in length, accounting for 69.25%, approximately. results of phylogenetic analysis shown that m. meridianus and meriones unguiculatus were clustered in a single branch. this conclusion would be an important data for relevant studies about the ... | 2016 | 26075483 |
| foraging behavior of the midday gerbil (meriones meridianus): combined effects of distance and microhabitat. | we used the giving-up density (gud) method and direct observation to study the combined effects of travel distance and microhabitat on foraging behavior of the midday gerbil (meriones meridianus), which often acts as a central place forager. we provided animals with artificial seed trays in which dry and unhusked pumpkin seeds were mixed with fine sand. gerbils practiced an eat-and-carry strategy in patches of bush microhabitat that were far from central places (bf patches), and tended to carry ... | 2011 | 21070841 |
| [effect of habitat type and population density on the stress level of midday gerbils (meriones meridianus pall.) in free-living populations]. | new methods of noninvasive evaluation of the endocrine status of animals by the content of hormones in feces were used to study the relationship between the stress level and social (population density) and ecological (habitat integrity) indices in natural populations of midday gerbil in the southern kalmykia in 2000. stress level proved to increase with habitat disturbance but did not depend on population density of animals. the obtained data are discussed in the context of species-specific ecol ... | 2016 | 15615454 |
| a comparative study on the morphology and topography of the ciliary ganglion in midday gerbil (meriones meridianus) and turtle (agrionemys horsfieldii). | the morphology and topography of the ciliary ganglia in the midday gerbil and turtle were studied with use of histochemical and histological techniques. the ciliary ganglion of the midday gerbil consisted of two cell agglomerations: the main ganglion and the accessory ganglion. the main ganglion was situated in the orbit and usually closely attached to the nerve for the inferior oblique muscle. the short ciliary nerves arose from the superior end of the main ganglion and reached the orbit. the a ... | 2003 | 12924473 |
| [biotope distribution of two gerbil species (meriones meridianus and m. tamariscinus) (rodentia, gerbillinae) in southern kalmykia]. | our studies have been conducted in southern kalmykia (black lands) in 1994-1996. the data obtained on the same territories in 1981-1983, as well as in 1997-1998 were used for comparison. over the studied period, the size of meriones tamariscinus population underwent a significant increase. in the early 1980s, the colonies of this species were found only on sandy dunes covered with tamarix. at the present time, m. tamariscinus populations have spread over stabilized sands, abandoned shepherd camp ... | 2016 | 10881433 |
| [growth and functional activity of the abdominal gland and marking behavior of midday (meriones meridianus) and tamarisk (m. tamariscinus) gerbils]. | | 1997 | 9273050 |
| [characteristics of the interspecies relationship of flea images based on 5 species (siphonaptera) infesting meridian gerbils]. | many years of observations (1966-1981) in the southern part of volga-ural sands prove interspecific interactions between five species of fleas, specific parasites of meriones meridianus, following the gause's principle. the major mechanism for avoiding interspecific competition for the host is a temporal separation of the five species of fleas. during every season of the year, independent of the exchange of one species of fleas by others, their number on the infested host is maintained on the st ... | 2010 | 6234502 |
| a histological study of the harderian gland of mongolian gerbils, meriones meridianus. | the histological structure of the gerbil harderian gland was investigated by means of light and transmission electron microscopy. the single excretory duct of the gland is directly continuous with endpieces at the hilus and opens nasally and ventrally to the third eyelid. the excretory duct is accompanied by many acini of small serous glands around it. the gland is composed of tubuloalveoli (tubular alveoli) with wide lumina and is not divided into lobules. there is no branched duct system withi ... | 1981 | 7270926 |
| chromosomes of three asian mammals: meriones meridianus (rodentia:gerbillinae), spermophilopsis leptodactylus (rodentia:sciuridae), ochotona rufescens (lagomorpha:ochotonidae). | | 1969 | 5809314 |
| [ascorbic acid and tocoferol content in meriones meridianus pall]. | | 1965 | 5869084 |
| [the effects of vitamins c and e on the physiological peculiarities and sensitivity of meriones meridianus to plague infection]. | | 1963 | 14072274 |
| [on the problem of the role of meriones meridianus pall. and meriones tamariscinus pall. in the preservation and spreading of brucellosis]. | | 1962 | 13919633 |
| [on the problem of the use of cortisone for diagnosis of latent plague infection. part i. diagnosis of latent plague infection in gerbils (meriones meridianus pall.) with the aid of cortisone-treated white mice]. | | 1960 | 14446243 |
| development of an effective microsatellite marker system to determine the genetic structure of meriones meridianus populations. | understanding the genetic quality of the gerbil, meriones meridianus, plays an important role in the study of medical biology. however, no effective system has been established for evaluating a population's genetic diversity to date. in the present study, we established a set of reasonable evaluative systems based on microsatellite markers of the mongolian gerbil by using the method of cross-amplification of species. following electrophoresis analysis, short tandem repeat (str) scanning, and seq ... | 2020 | 32062628 |
| differences in the number of oxytocin, vasopressin, and tyrosine hydroxylase cells in brain regions associated with mating among great, midday, and mongolian gerbils. | neurotransmitters, such as oxytocin (ot), vasopressin (avp), and dopamine (da), within the mesolimbic system have deeply conserved roles in regulating mating-related behaviors. however, comparative studies among monogamous and polygamous animals focus mainly on microtus; very little research has been done in gerbils. here, we measured body weight, body length, tail length, serum hormone concentrations, and the immunoreactive (ir)-cells of ot, avp, and tyrosine hydroxylase (th) in the brain of th ... | 2020 | 32001244 |
| thermal biology of two sympatric gerbil species: the physiological basis of temporal partitioning. | sympatric species can coexist through ecological resource partitioning as for example for habitat, food or time. however, a detailed understanding of the basic thermal physiology, crucial for temporal partitioning, is currently lacking, especially for the desert rodents. here, we compare the physiological performance with regard to thermal energetics and morphological traits of two sympatric gerbils from the gobi desert of inner mongolia, china. the diurnally active meriones unguiculatus and the ... | 2018 | 29801634 |
| rodent burrow network dynamics under human-induced landscape transformation from desert to steppe in kalmykian rangelands. | rodents play an important role in rangelands through the engineering of extensive burrow systems, which provides key habitats for many animal and plant species. we have analyzed the long-term variation in the abundance and distribution of rodent burrows in grazing ecosystems of southern russia (kalmykia) under the landscape change from desert to steppe caused by the drastic reduction of livestock after the collapse of the ussr in the early 1990s. we conducted burrow surveys in the "desert" (1980 ... | 2019 | 30983144 |
| effect of intensity-modulated radiation therapy on sciatic nerve injury caused by echinococcosis. | conventional radiotherapy has a good killing effect on femoral echinococcosis. however, the sciatic nerve around the lesion is irreversibly damaged owing to bystander effects. although intensity-modulated radiation therapy shows great advantages for precise dose distribution into lesions, it is unknown whether intensity-modulated radiation therapy can perfectly protect the surrounding sciatic nerve on the basis of good killing of femoral echinococcosis foci. therefore, this study comparatively a ... | 2021 | 32985491 |
| outcomes of radiotherapy for osseous echinococcosis of meriones meridianus. | osseous cyst echinococcosis (ce) is an infectious disease that causes disability and deformity in patients, yet there is still no satisfactory treatment. focusing on the feasibility and prognosis of radiotherapy as an adjuvant or palliative treatment for osseous ce, this study investigated the outcome of meriones meridianus with osseous ce after radiotherapy. | 2020 | 32879885 |
| characteristics of pup ultrasonic vocalizations and parental behavior responses in midday gerbils (meriones meridianus). | ultrasonic vocalizations (usvs) play an important role in parent-infant interactions during the neonatal period of rodents because of the pups' need to be suckled and protected by their parents. however, studies on the effects of usvs on parental care are focused on maternal behavior, and little data on paternal care are available, with especially few investigations in midday gerbils. in this study, we examined the effects of early social deprivation (ed) on offspring due to usvs and parental be ... | 2020 | 32663552 |
| exposure to quinestrol and levonorgestrel affects maternal behavior and offspring development in midday gerbil (meriones meridianus). | quinestrol and levonorgestrel (ep-1, at a ratio of 1:2) are often used as anti-fertility compounds (sterilants) in rodents. as most of the research has focused on the sterility and damage caused in parental reproductive organs, there is little research on the effect of these contraceptive hormones on maternal behavior and offspring's early development. in this study, we examined maternal behavior after treatment with different doses of ep-1 (10 ml/kg) at postnatal days 3 and 10, separately. vari ... | 2020 | 32088172 |
| isolation and identification of respiratory tract and intestinal microflora of meriones meridianus in a conventional animal facility. | culturable bacterial species from the respiratory tract and ileocecal junction of meriones meridianus (midday gerbils) captured in the xinjiang luntai area were isolated and identified to confirm the microflora and develop approaches for biological purification of laboratory animals and relevant microbial precautions. | 2018 | 30891582 |
| breeding versus survival: proximate causes of abrupt population decline under environmental change in a desert rodent, the midday gerbil (meriones meridianus). | studying abrupt ecological shifts under gradual environmental change caused, in particular, by human activity is important for understanding the fundamental aspects and underlying mechanisms of ecological resilience. one of the rare well-documented examples of an abrupt ecological shift is the delayed step transition of the population of a desert rodent, the midday gerbil (meriones meridianus), from high-abundance (1994-2002) to low-abundance (2003-2017) regimes. this was in response to landscap ... | 2019 | 30585409 |