| isolation of leishmania major from mastomys erythroleucus and tatera gambiana in senegal (west africa). | | 1979 | 534447 |
| the fine structure of the epithelium of prostate glands in adult female mastomys erythroleucus temm. | the prostate glands in adult female mastomys were studied with the light and the electron microscope. in the light microscopy, each prostatic acinus is lined by a single layer of tall cuboidal secretory epithelial cells which are surrounded by a capsule composed of a few layers of elongated and flattened cells. the acinar secretory epithelial cells show no presence of the supranuclear light areas in their cytoplasm and tend to be more readily stained with toluidine blue in the perinuclear and th ... | 1976 | 1035485 |
| [interepidemic surveillance of a cutaneous leishmaniasis focus in senegal]. | the cutaneous leishmaniasis is rampant in an endemo -epidemic way in the region of thiès, senegal. at the occasion of an epidemic observed between 1975 and 1978, the ecological study of the focus of keur moussa , led by dedet and al., permitted to discover, for the first time in west africa, the structure of a cutaneous leishmaniasis focus. the most important part of the present laboratory work consists in the observation of that wild anthropozoonosis due to leishmania tropica major, having as v ... | 1984 | 6738336 |
| leishmaniasis in the gambia. 2. a study of possible vectors and animal reservoirs, with the first report of a case of canine leishmaniasis in the gambia. | following the detection of two cases of leishmaniasis in the gambia, the possible vectors and animal reservoirs were studied. a total of 5, 158 phlebotomine sandflies, in 20 species and subspecies were captured, including 98 males and 61 females of phlebotomus duboscqi. this species is a vector of cutaneous leishmaniasis in senegal and must be suspected as a vector in the gambia; it was captured close to the dwellings of both patients and from rodent burrows, including those of mastomys erythrol ... | 1983 | 6868093 |
| [ecology of a reservoir of cutaneous leishmaniasis in the region of thiès (senegal, west africa). 6. characterization and types of isolated leishmania strains]. | the authors studied the characterisation and typing of leishmania strains isolated in the keur-moussa focus from human lesions (4 strains), from the digestive tract of phlebotomus duboscqi (i strain) and from the rodents mastomys erythroleucus (2 strains) and tatera gambiana (2 strains). they used the following criteria: amastigote measurements, kinetoplast ultrastructure, pathogenicity in mice and hamsters, isoenzymes, kinetoplast and nuclear dna buoyant densities and the adler test. the result ... | 1982 | 7105287 |
| [ecology of a focus of cutaneous leishmaniasis in the thiès region (senegal, west africa). 6. characterization and typing of the strains of leishmania isolated]. | the authors studied the characterisation and typing of leishmania strains isolated in the keur-moussa focus from human lesions (4 strains), from the digestive tract of phlebotomus duboscqi (i strain) and from the rodents mastomys erythroleucus (2 strains) and tatera gambiana (2 strains). they used the following criteria: amastigote measurements, kinetoplast ultrastructure, pathogenicity in mice and hamsters, isoenzymes, kinetoplast and nuclear dna buoyant densities and the adler test. the result ... | 1982 | 7168884 |
| [ecology of a cutaneous leishmaniasis focus in the thies region (senegal, west africa). 5. spontaneous infection and disease reservoir role of various wild rodent species]. | the authors describe spontaneous infection of mastomys erythroleucus and tatera gambiana by leishmania strains typed as l. major. they argue the reservoir role to these two species and the one of arvicanthis niloticus previously found infected. the possible relations between the fluctuations of rodent populations and the incidence of the human disease are then discussed. | 1981 | 7296732 |
| a comparative study of three methods of detection of borrelia crocidurae in wild rodents in senegal. | in a rural area in sénégal with a high incidence of tick-borne relapsing fever in humans, borrelia crocidurae was studied in the blood and brain of wild rodents (mastomys erythroleucus, arvicanthis niloticus and rattus rattus) using 3 methods: (i) direct examination of thick blood films; (ii) intraperitoneal inoculation of blood into white mice; (iii) intraperitoneal inoculation of homogenized cerebral tissue into white mice. of the 82 rodents examined, the proportion of infected animals was res ... | 1994 | 7570827 |
| association of ticks (acari: ixodoidea) with rodent burrows in northern senegal. | four species of ticks were retrieved from burrows of 64 multimammate rats, mastomys erythroleucus (temminck), 55-gerbils, taterillus gracilis (thomas) or t. pygargus (cuvier), 13 nile rats, arvicanthis niloticus (demarest), and five geoffroy's ground squirrels, xerus erythropus (geoffroy) from may 1987 through august 1988 at two study sites in northern senegal. ornithodoros sonrai sautet & witkowski were recovered from 95% (74/78) of burrows near bandia and 6% (4/66) of burrows near yonofere. ei ... | 1993 | 8360905 |
| susceptibility of rodents to infection with schistosoma mansoni in richard-toll (senegal). | the susceptibility of arvicanthis niloticus, mastomys huberti, mastomys erythroleucus and mus musculus was studied to assess the capacity of these rodents to transmit schistosoma mansoni. the susceptibility was determined by the percentage of adult schistosomes recovered, the number of eggs per gramme of faeces, the viability of these eggs and the capacity of the rodents to maintain the life cycle of schistosoma mansoni. the percentages of adult worms recovered were respectively 18%, 11.5%, 8.4% ... | 1996 | 9033908 |
| gongylonema madeleinensis n. sp. (nematoda:spiruroidea), from mastomys erythroleucus (rodentia) from a senegalese island. | a new species of gongylonematid parasites of the rodent mastomys erythroleucus is described. gongylonema madeleinensis n. sp. differs from the other species of the genus by the size of its eggs and spicules-gubernaculum complex, the form and distribution of its cuticular scutella, and the absence of a pore on its cephalic plate. after examination of the esophageal content of 270 continental and 29 insular rodents, g. madeleinensis n. sp. seems to be endemic to the island "des madeleines" near da ... | 1997 | 9267415 |
| subulura saloumensis n. sp. (nematoda, subuluroidea) from four species of rodents in senegal. | a new species of the genus subulura is described from 4 new rodent hosts: arvicanthis niloticus, mastomys erythroleucus, mastomys huberti, and tatera gambiana. subulura saloumensis n. sp. differs from the congeneric species by the morphology of its head. the absence of buccal lobes, the length of right and left spicules, the absence of caudal alae, and the existence of a caudal papillae with a sensorial bristle. the latter, which we observe for the first time in specimens gathered from m. hubert ... | 1998 | 9645859 |
| [interepidemic supervision of the leishmania focus of keur moussa (thies, senegal)]. | a supervision of the focus of human cutaneous leishmaniasis of keur moussa has been carried out in 1988-1989 and in 1991-1992. among the 13 species gathering the 10,144 phlebotomine sandflies trapped, two belong to genus phlebotomus, the others to genus sergentomyia. phlebotomus duboscqi, that has been found out by deded et al. in 1980 as the vector of this leishmaniasis in senegal, is the most represented species after sergentomyia schwetzi, with respectively 32.3 and 28.5% of the found during ... | 1998 | 9754297 |
| the potential role of rodents in the enzootic cycle of rift valley fever virus in senegal. | wild rodents (214) of fourteen species were trapped at seven sites in senegal. arvicanthis niloticus and mastomys erythroleucus were among the most frequently collected species (77.2% of total capture). all rodents were examined for the presence of anti-rift valley fever virus (rvfv) antibody; the prevalence over all sampled species was 3.8%, varying widely with respect to species and location. four of 14 species of rodents were found to have anti-rvfv antibodies: rattus rattus (one positive of ... | 2000 | 10817634 |
| the systematic position of some ethiopian nippostrongylinae (nematoda, trichostrongylina, heligmosomoidea) from the national collection of animal helminths, onderstepoort, south africa. | the taxonomic status of some nippostrongyline nematodes deposited in the national collection of animal helminths, onderstepoort, is revised. heligmonina boomkeri n. sp. is described from aethomys chrysophilus from south africa. the most closely related species by the body measurements and the pattern of the caudal bursa is heligmonina bignonensis diouf, bâ & durette-desset, 1997, a parasite of mastomys erythroleucus from senegal. it differs from the new species mainly in the number of ventral cu ... | 2005 | 15991705 |
| the normal occurrence, structure and homology of prostate glands in adult female mastomys erythroleucus temm. | | 1940 | 17104843 |
| population genetic structure of two ecologically distinct multimammate rats: the commensal mastomys natalensis and the wild mastomys erythroleucus in southeastern senegal. | using the same set of microsatellite markers, we compared the population genetic structure of two mastomys species, one being exclusively commensal in southeastern senegal, and the other being continuously distributed outside villages in this region. both species were sampled in the same landscape context and at the same spatial scale. according to the expectations based on the degree of habitat patchiness (which is higher for commensal populations in this rural area), genetic diversity was lowe ... | 2007 | 17614912 |
| geographic patterns of inversion polymorphisms in a wild african rodent, mastomys erythroleucus. | by suppressing recombination and reducing gene flow, chromosome inversions favor the capture and protection of advantageous allelic combinations, leading to adaptive polymorphisms. however, studies in non-model species remain scarce. here we investigate the distribution of inversion polymorphisms in the multimammate rat mastomys erythroleucus in west africa. more than 270 individuals from 52 localities were karyotyped using g-bands and showed widespread polymorphisms involving four chromosome pa ... | 2010 | 19812611 |
| variation in cestode assemblages of mastomys and arvicanthis species (rodents: muridae) from lake retba in western senegal. | we studied patterns of variation in cestode communities of 3 abundant rodent species that live in sympatry in the niayes of the retba lake, western senegal. we evaluated whether the host species have the same parasites and, within host species, whether the variability in parasite community is related to intrinsic (sex, age of the host individual) or extrinsic (habitat, season) factors. arvicanthis niloticus was parasitized by 2 cestode species, namely inermicapsifer madagascariensis and the high ... | 2010 | 20486740 |
| rodent host cell/lassa virus interactions: evolution and expression of α-dystroglycan, large-1 and large-2 genes, with special emphasis on the mastomys genus. | arenaviruses are usually rodent-borne viruses that constitute a major threat for human health. among them, lassa fever virus (lfv) occurs in western africa where it infects hundreds of thousands of people annually. according to the most recent surveys, lfv is hosted by one of the multimammate rats, mastomys natalensis, but has never been detected in its sibling and sometimes sympatric species mastomys erythroleucus. this pattern suggests that intrinsic, i.e. genetic properties underlie such a dr ... | 2010 | 20674789 |
| permanent genetic resources added to molecular ecology resources database 1 august 2009-30 september 2009. | this article documents the addition of 238 microsatellite marker loci and 72 pairs of single nucleotide polymorphism (snp) sequencing primers to the molecular ecology resources database. loci were developed for the following species: adelges tsugae, artemisia tridentata, astroides calycularis, azorella selago, botryllus schlosseri, botrylloides violaceus, cardiocrinum cordatum var. glehnii, campylopterus curvipennis, colocasia esculenta, cynomys ludovicianus, cynomys leucurus, cynomys gunnisoni, ... | 2010 | 21565018 |
| comparative population genetics of a parasitic nematode and its host community: the trichostrongylid neoheligmonella granjoni and mastomys rodents in southeastern senegal. | contrasting host and parasite population genetic structures can provide information about the population ecology of each species and the potential for local adaptation. here, we examined the population genetic structure of the nematode neoheligmonella granjoni at a regional scale in southeastern senegal, using 11 microsatellite markers. using the results previously obtained for the two main rodent species of the host community, mastomys natalensis and mastomys erythroleucus, we tested the hypoth ... | 2011 | 21924271 |
| 16s rrna amplicon sequencing for epidemiological surveys of bacteria in wildlife. | the human impact on natural habitats is increasing the complexity of human-wildlife interactions and leading to the emergence of infectious diseases worldwide. highly successful synanthropic wildlife species, such as rodents, will undoubtedly play an increasingly important role in transmitting zoonotic diseases. we investigated the potential for recent developments in 16s rrna amplicon sequencing to facilitate the multiplexing of the large numbers of samples needed to improve our understanding o ... | 2016 | 27822541 |
| borrelia infection in small mammals in west africa and its relationship with tick occurrence inside burrows. | tick-borne relapsing fever (tbrf) is a zoonotic disease caused by several borrelia species transmitted to humans by ornithodoros tick vectors. in west africa, borrelia crocidurae is a common cause of disease in many rural populations. small mammals act as reservoirs of infection. we report here the results of surveys that investigated the occurrence of b. crocidurae infection in rodents and insectivores from eight countries of west and central africa. animals were identified at the species level ... | 2015 | 26327444 |
| new hosts of the lassa virus. | lassa virus (lasv) causes a deadly haemorrhagic fever in humans, killing several thousand people in west africa annually. for 40 years, the natal multimammate rat, mastomys natalensis, has been assumed to be the sole host of lasv. we found evidence that lasv is also hosted by other rodent species: the african wood mouse hylomyscus pamfi in nigeria, and the guinea multimammate mouse mastomys erythroleucus in both nigeria and guinea. virus strains from these animals were isolated in the bsl-4 labo ... | 2016 | 27140942 |
| lassa serology in natural populations of rodents and horizontal transmission. | lassa virus causes hemorrhagic fever in west africa. previously, we demonstrated by pcr screening that only the multimammate mouse, mastomys natalensis, hosts lassa virus in guinea. in the present study, we used the same specimen collection from 17 villages in coastal, upper, and forest guinea to investigate the lassa virus serology in the rodent population. the aim was to determine the dynamics of antibody development in m. natalensis and to detect potential spillover infections in other rodent ... | 2014 | 25229705 |
| whipworm diversity in west african rodents: a molecular approach and the description of trichuris duplantieri n. sp. (nematoda: trichuridae). | whipworms were collected from rodents (muridae) from six west african countries: burkina-faso, the islamic republic of mauritania, and the republics of benin, guinea, mali and senegal. molecular sequences (its-1, 5.8s and its-2 of the ribosomal dna gene) and morphometric characters were analysed in trichuris (nematoda: trichuridae) specimens found in seven host species: arvicanthis niloticus, gerbilliscus gambianus, gerbillus gerbillus, g. tarabuli, mastomys erythroleucus, m. huberti and m. nata ... | 2017 | 28210845 |
| molecular detection of leishmania infantum and leishmania tropica in rodent species from endemic cutaneous leishmaniasis areas in morocco. | leishmaniasis remains a major public health problem in african nations, including morocco, where little is known about the vertebrate reservoirs involved in the causal parasites' transmission cycles. the present study investigates the role of rodent species as potential reservoirs of leishmania spp. in central morocco, where both l. tropica and l. infantum have been reported. | 2017 | 28969710 |
| impact of mining and forest regeneration on small mammal biodiversity in the western region of ghana. | much of the terrestrial biodiversity in sub-saharan africa is supported by tropical rainforest. natural resource development, particularly surface mining in the rainforest, poses great risks to the region's rich and endemic biodiversity. here, we assessed the impact of surface mining and the success of forest rehabilitation on small mammal diversity in the western region of ghana. we surveyed small mammals in the project area and two adjoining forest reserves (control sites) before the mining op ... | 2017 | 28451959 |
| spatio-temporal variation in small mammal species richness, relative abundance and body mass reveal changes in a coastal wetland ecosystem in ghana. | coastal wetlands in ghana are under severe threat of anthropogenic drivers of habitat degradation and climate change, thereby increasing the need for assessment and monitoring to inform targeted and effective conservation of these ecosystems. here, we assess small mammal species richness, relative abundance and body mass in three habitats at the muni-pomadze ramsar site of ghana, and compare these to baseline data gathered in 1997 to evaluate changes in the wetland ecosystem. small mammals were ... | 2016 | 27154051 |
| serological survey of zoonotic viruses in invasive and native commensal rodents in senegal, west africa. | increasing studies on rodent-borne diseases still highlight the major role of rodents as reservoirs of numerous zoonoses of which the frequency is likely to increase worldwide as a result of accelerated anthropogenic changes, including biological invasions. such a situation makes pathogen detection in rodent populations important, especially in the context of developing countries characterized by high infectious disease burden. here, we used indirect fluorescent antibody tests to describe the ci ... | 2017 | 28873024 |
| urban green area provides refuge for native small mammal biodiversity in a rapidly expanding city in ghana. | urbanization is a key driver of global biodiversity loss. although sub-saharan african countries are experiencing unprecedented urbanization and urban expansion, very little is known about how this impacts tropical biodiversity. here, we assessed the effects of urban expansion and urban green space on local small mammal species diversity in accra, ghana. we surveyed small mammals in the university of ghana botanical garden, an urban green area (uga) and adjoining built-up environment (be) and co ... | 2018 | 30032389 |
| molecular detection of microorganisms associated with small mammals and their ectoparasites in mali. | small mammals are the natural reservoirs for many zoonotic pathogens. using molecular tools, we assessed the prevalence of bacteria and protozoans in small mammals and their ectoparasites in faladjè, bougouni, and bamoko, mali. a total of 130 small mammals belonging to 10 different species were captured, of which 74 (56.9%) were infested by ectoparasites, including laelaps echidnina, xenopsylla cheopis, amblyomma variegatum, rhipicephalus sanguineus sensu lato, and haemaphysalis spp. nymphs. dna ... | 2020 | 33146105 |
| seroprevalence of toxoplasma gondii in commensal rodents sampled across senegal, west africa. | risks related to toxoplasma gondii infection in humans remain poorly known in senegal. although rodent surveys could help to assess the circulation of t. gondii, they have seldom been set up in sub-saharan africa. the aim of this study was to examine toxoplasma seroprevalence in rodents from villages and towns across senegal. rodents were sampled in 40 localities using a standardised trapping protocol. detection of t. gondii antibodies was performed on 1205 rodents, using a modified agglutinatio ... | 2018 | 30016257 |
| widespread arenavirus occurrence and seroprevalence in small mammals, nigeria. | lassa fever, killing thousands of people annually, is the most reported viral zoonotic disease in nigeria. recently, different rodent species carrying diverse lineages of the lassa virus (lasv) in addition to a novel mobala-like genetic sequence were detected within the country. here, screening 906 small mammal specimens from 11 localities for igg antibodies and incorporating previous pcr detection data involving the same populations, we further describe arenavirus prevalence across nigeria in r ... | 2018 | 30005641 |
| rodent control to fight lassa fever: evaluation and lessons learned from a 4-year study in upper guinea. | lassa fever is a viral haemorrhagic fever caused by an arenavirus. the disease is endemic in west african countries, including guinea. the rodents mastomys natalensis and mastomys erythroleucus have been identified as lassa virus reservoirs in guinea. in the absence of a vaccine, rodent control and human behavioural changes are the only options to prevent lassa fever in highly endemic areas. we performed a 4 year intervention based on chemical rodent control, utilizing anticoagulant rodenticides ... | 2018 | 30399142 |
| noncontiguous finished genome sequence and description of bartonella mastomydis sp. nov. | bartonella mastomydis sp. nov. strain 008 is the type strain of b. mastomydis sp. nov., a new species within the genus bartonella. this strain was isolated from mastomys erythroleucus rodents trapped in the sine-saloum region of senegal. here we describe the features of this organism, together with the complete genome sequence and its annotation. the 2 044 960 bp long genomes with 38.44% g + c content contains 1674 protein-coding and 42 rna genes, including three rrna genes. | 2018 | 30128156 |