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establishment of cell line from embryonic tissue of pipistrellus ceylonicus bat species from india & its susceptibility to different viruses.pipistrellus ceylonicus bat species is widely distributed in south asia, with additional populations recorded in china and southeast asia. bats are the natural reservoir hosts for a number of emerging zoonotic diseases. attempts to isolate bat-borne viruses in various terrestrial mammalian cell lines have sometimes been unsuccessful. the bat cell lines are useful in isolation and propagation of many of the viruses harboured by bats. new stable bat cell lines are needed to help such investigation ...024056599
demonstration of antibodies against the virus of kyasanur forest disease (kfd) in the frugivorous bat rousettus leschenaulti, near poona, india. 19655849871
isolation of the west nile virus from the frugivorous bat, rousettus leschenaulti. 19705534069
isolation of a new parainfluenza virus from a frugivorous bat, rousettus leschenaulti, collected at poona, india. 19714327913
letter: secretory blebs from the seminal vesicles of the indian fruit bat, rousettus leschenaulti (desmarest). 19744448253
electron microscopic observations on the yolk sac of the indian fruit bat, rousettus leschenaulti (desmarest) (pteropidae). 1979507404
susceptibility of rousettus leschenaulti to infection with kyasanur forest disease virus--a note. 1979222671
ultrastructure of the pineal gland of the tropical bat rousettus leschenaulti.the ultrastructure of the pineal organ was studied in the tropical megachiropteran rousettus leschenaulti. the pineal lies deep beneath the hemispheres adjacent to the third ventricle and is traversed by the habenular commissure anteriorly. its parenchyma consists of a uniform population of light and occasional dark pinealocytes which appear to differ only in the degree of cytoplasmic staining. pinealocytes are characterized by well developed golgi bodies associated with numerous small vesicles, ...19873577648
ultrastructural and functional characteristics of anterior pituitary cells in the indian fruit bat, rousettus leschenaulti (desmarest).the pituitary glands of normal and experimental male and female bats were examined by light and electron microscopy. six cell types were identified in the anterior pituitary by differential staining techniques, ultrastructural characteristics and changes brought about during the different phases of the sexual cycle. conventional methods like removal of thyroids, testes and adrenals, and animals in lactation withdrawal and treatment with propylthio-uracil, cyproterone acetate and metyrapone were ...19892750467
comparative electron microscopy of chorio-allantoic placental barrier in some indian chiroptera.in the present study the comparative ultrastructure of the definitive chorio-allantoic placental barrier has been studied in considerable detail in six species of bats, representing six different families and both suborders of chiroptera, by electron microscopy, and these species illustrate different kinds of interhaemal membranes met with among bats. the definitive chorio-allantoic placenta of rousettus leschenaulti is haemodichorial, since the syncytiotrophoblast and cytotrophoblast layers are ...19902220288
molecular phylogeny of the superorder archonta.the superorder archonta has been hypothesized to include primates, tree shrews, bats, and flying lemurs as descendants of a common ancestor. more recently, a diphyletic origin for bats has been proposed. to evaluate these hypotheses, the nucleotide sequence of the mitochondrial cytochrome oxidase subunit ii gene was determined from a bushbaby (galago senegalensis), flying lemur (cynocephalus variegatus), tree shrew (tupaia glis), spear-nosed bat (phyllostomus hastatus), rousette bat (rousettus l ...19911658802
kinetics of spermatogenesis in megachiropteran bat, rousettus leschenaulti (desmarset): seminiferous epithelial cycle, frequency of stages, spermatogonial renewal and germ cell degeneration.the paper describes in detail the cytomorphology of different types of germ cells, the 10 typical cellular associations or stages of the cycle of seminiferous epithelium (cse), frequency of appearance of these stages, pattern of spermatogonial stem cell renewal and per cent degeneration of various germ cells in r. leschenaulti. of the 14 steps of spermiogenesis (stained with pas-haematoxylin) the first 10 were associated with the stages i-x, whereas, the remaining were found in association with ...19921293027
development of the vomeronasal organ in rousettus leschenaulti (megachiroptera, pteropodidae).a functional vomeronasal organ (vno) is known to be lacking in adult bats of the suborder megachiroptera, family pteropodidae, studied to date. however, whether the vno every forms during ontogeny in megachiropterans has not been addressed. we report here on the development of the vno in megachiropterans via study of 8 stages of rousette fruit bat rousettus leschenaulti, ranging from an early limb bud embryo to a young specimen attached to the nipple. a vomeronasal primordium appears in the 4 yo ...19968655399
postnatal growth, age estimation and development of foraging behaviour in the fulvous fruit bat rousettus leschenaulti.this study documents the postnatal growth, age estimation and development of the foraging behaviour of the fulvous fruit bat rousettus leschenaulti under captive conditions. at birth, the young were naked and pink with closed eyes and folded pinnae. by day four of age, their eyes had opened and the pups began to move. the mean length of forearm in 5-day-old pups was 24.9 mm and body mass was 10.8 g, equivalent to 32.3% and 14.2% of the values from postpartum females. the length of forearm and bo ...200212571375
[an epidemiological investigation of bats carrying sars-cov in guangzhou and its vicinity].to detect serve acute respiratory syndrome-associated coronavirus (sars-cov) and sars-like-cov in fruit bats captured in guangzhou and its vicinity.200616864084
characterization of microsatellite loci in fulvous fruit bat rousettus leschenaulti.rousettus leschenaulti is an abundant species in many countries of south-east asia, including south china. we isolated seven microsatellite loci in r. leschenaulti from genomic dna enriched for ca repeats with the enriched library method. a total of 56 samples from a population in the guangxi province of china were tested with these microsatellite markers. the polymorphism ranged from seven to 16 alleles, and the observed heterozygosity was 84-94%. it is the first time microsatellite markers wer ...200632355465
karyotype evolution in rhinolophus bats (rhinolophidae, chiroptera) illuminated by cross-species chromosome painting and g-banding comparison.rhinolophus (rhinolophidae) is the second most speciose genus in chiroptera and has extensively diversified diploid chromosome numbers (from 2n = 28 to 62). in spite of many attempts to explore the karyotypic evolution of this genus, most studies have been based on conventional giemsa staining rather than g-banding. here we have made a whole set of chromosome-specific painting probes from flow-sorted chromosomes of aselliscus stoliczkanus (hipposideridae). these probes have been utilized to esta ...200717899409
wild fulvous fruit bats (rousettus leschenaulti) exhibit human-like menstrual cycle.we investigated the menstrual cycle of wild fulvous fruit bats (rousettus leschenaulti), focusing on changes in the endometrial and ovarian structure and pituitary and steroid hormones. the menstrual cycle lasts for 33 days in bats studied in their natural habitat and in captivity. vaginal bleeding was restricted to a single day (day 1). a preovulatory follicle was found in the ovary on day 18 when the levels of lh and fsh reached their maxima, accompanied by a thickened endometrium. on day 24, ...200717494915
host specificity in bat ectoparasites: a natural experiment.we undertook a field study to determine patterns of specialisation of ectoparasites in cave-dwelling bats in sri lanka. the hypothesis tested was that strict host specificity (monoxeny) could evolve through the development of differential species preferences through association with the different host groups. three species of cave-dwelling bats were chosen to represent a wide range of host-parasite associations (monoxeny to polyxeny), and both sympatric and allopatric roosting assemblages. of th ...200919232350
identification and complete genome analysis of three novel paramyxoviruses, tuhoko virus 1, 2 and 3, in fruit bats from china.among 489 bats of 11 species in china, three novel paramyxoviruses [tuhokovirus 1, 2 and 3 (thkpv-1, thkpv-2 and thkpv-3)] were discovered in 15 leschenault's rousettes. phylogenetically, the three viruses are most closely related to menangle and tioman virus. genome analysis showed that their 3'-leader sequences are unique by possessing ga instead of ag at the 5th and 6th positions. unlike menangle and tioman virus, key amino acids for neuraminidase activity characteristic of rubulavirus attach ...201020537670
structural and functional studies of leptins from hibernating and non-hibernating bats.leptin, a 16-kda hormone produced by mature adipocytes, has been shown to regulate the hibernation of mammals. in this study, the leptin gene sequences of both hibernating (rhinolophus ferrumequinum) and non-hibernating (rousettus leschenaultii) bats were determined, and the leptin proteins from these two different species of bats were expressed in escherichia coli for the first time. results showed that the amino acid sequence of the leptin protein from hibernating bats had a lower degree of id ...201020394750
seroprevalence of rabies virus antibodies in bats from southern china.members of the order chiroptera are the natural reservoirs of lyssaviruses and play an important role in the transmission of rabies to animals and humans. in this present study, the seroprevalence for rabies virus was determined for bats sampled from four southern provinces on the chinese mainland. a total of 685 bats of 8 species representing 4 families were collected from 10 sites, and were tested by the indirect fluorescent antibody test using fluorescein isothiocyanate (fitc)-conjugated prot ...201019492948
contrasting genetic structure in two co-distributed species of old world fruit bat.the fulvous fruit bat (rousettus leschenaulti) and the greater short-nosed fruit bat (cynopterus sphinx) are two abundant and widely co-distributed old world fruit bats in southeast and east asia. the former species forms large colonies in caves while the latter roots in small groups in trees. to test whether these differences in social organization and roosting ecology are associated with contrasting patterns of gene flow, we used mtdna and nuclear loci to characterize population genetic subdiv ...201021085717
coexistence of different genotypes in the same bat and serological characterization of rousettus bat coronavirus hku9 belonging to a novel betacoronavirus subgroup.rousettus bat coronavirus hku9 (ro-batcov hku9), a recently identified coronavirus of novel betacoronavirus subgroup d, from leschenault's rousette, was previously found to display marked sequence polymorphism among genomes of four strains. among 10 bats with complete rna-dependent rna polymerase (rdrp), spike (s), and nucleocapsid (n) genes sequenced, three and two sequence clades for all three genes were codetected in two and five bats, respectively, suggesting the coexistence of two or three ...201020702646
bat coronaviruses and experimental infection of bats, the philippines.fifty-two bats captured during july 2008 in the philippines were tested by reverse transcription-pcr to detect bat coronavirus (cov) rna. the overall prevalence of virus rna was 55.8%. we found 2 groups of sequences that belonged to group 1 (genus alphacoronavirus) and group 2 (genus betacoronavirus) covs. phylogenetic analysis of the rna-dependent rna polymerase gene showed that groups 1 and 2 covs were similar to bat-cov/china/a515/2005 (95% nt sequence identity) and bat-cov/hku9-1/china/2007 ...201020678314
progressive pseudogenization: vitamin c synthesis and its loss in bats.for the past 50 years, it was believed that all bats, like humans and guinea pigs, did not synthesize vitamin c (vc) because they lacked activity of l-gulonolactone oxidase (gulo) in their livers. humans and guinea pigs lack the activity due to pseudogenization of gulo in their genomes, but there is no genetic evidence to show whether such loss in bats is caused by pseudogenization. unexpectedly, our successful molecular cloning in one frugivorous bat (rousettus leschenaultii) and one insectivor ...201021037206
differential changes of regional cerebral blood flow in two bat species during induced hypothermia measured by perfusion-weighted magnetic resonance imaging.cerebral blood flow (cbf) of a vespertilionid bat, miniopterus fuliginosus (m. f.), and a pteropodid bat, rousettus leschenaultii (r. l.) was measured non-invasively during induced hypothermia (37-10°c for m. f. and 37-24°c for r. l.) with perfusion-weighted magnetic resonance imaging. in both species, the average cbf was found to decrease with rectal temperature. the patterns of hypothermia-induced regional cbf changes, however, were different between the two species. in the pteropodid bat, the ...201120680296
seed dispersal in hong kong, china: past, present and possible futures.in the present article, published and unpublished information regarding seed dispersal in the degraded landscape of hong kong, china, is reviewed. information was available for 1681 native plant species, of which 1165 were assigned to probable seed dispersal modes. endozoochory accounted for one-third (34.4%) of all species evaluated, half (54.4%) of those from forests, and more than two-thirds (69.2%) of all trees and tall shrubs. wind dispersal (25.9%) and dispersal by an unknown agent (30.7%) ...201121645275
isolation and phylogenetic characterization of bat astroviruses in southern china.astroviruses are associated with acute gastroenteritis of human and many animal species. recently, two studies have reported that novel astroviruses were found in bats. in order to extensively understand the genetic and phylogenetic characterization of bat astroviruses, we tested fecal samples of nine bat species that were collected at four natural habitats in three areas of southern china. the geographic distributions of the bats involved differed from previous reports. three out of nine specie ...201121573690
Telomerase activity in the bats Hipposideros armiger and Rousettus leschenaultia.Telomerase activity was examined in two species of bat, Hipposideros armiger and Rousettus leschenaultia, which have similar body mass and lifespan but differ in use of hibernation. We found that telomerase activity was present in all tissues sampled, but it was greater in metabolically active tissues such as liver, spleen, and kidney. Of special interest is the raised activity found in the heterothermic bat H. armiger, and the hibernating bats having raised values for spleen, heart, and kidney. ...201122082270
recent loss of vitamin c biosynthesis ability in bats.the traditional assumption that bats cannot synthesize vitamin c (vc) has been challenged recently. we have previously shown that two old world bat species (rousettus leschenaultii and hipposideros armiger) have functional l-gulonolactone oxidase (gulo), an enzyme that catalyzes the last step of vc biosynthesis de novo. given the uncertainties surrounding when and how bats lost gulo function, exploration of gene evolutionary patterns is needed. we therefore sequenced gulo genes from 16 bat speci ...201122069493
immunohistochemical evidence of cone-based ultraviolet vision in divergent bat species and implications for its evolution.we characterized fos-like expression patterns in the primary visual cortex (v1) by binocular flicking stimulation with uv light to investigate cone-based uv vision in four bat species representing four lineages: hipposideros armiger and scotophilus kuhlii, insectivores using constant frequency (cf) or frequency modulation (fm) echolocation, respectively, and rousettus leschenaultii and cynopterus sphinx, cave-roosting and tree-roosting fruit bats, respectively. the optic centre processing the vi ...201222269122
identification of diverse groups of endogenous gammaretroviruses in mega- and microbats.a previous phylogenetic study suggested that mammalian gammaretroviruses may have originated in bats. here we report the discovery of rna transcripts from two putative endogenous gammaretroviruses in frugivorous (rousettus leschenaultii retrovirus, rlrv) and insectivorous (megaderma lyra retrovirus, mlrv) bat species. both genomes possess a large deletion in pol, indicating that they are defective retroviruses. phylogenetic analysis places rlrv and mlrv within the diversity of mammalian gammaret ...201222694899
isolation of a novel adenovirus from rousettus leschenaultii bats from india.surveillance work was initiated to study the presence of highly infectious diseases like ebola-reston, marburg, nipah and other possible viruses that are known to be found in the bat species and responsible for causing diseases in humans. a novel adenovirus was isolated from a common species of fruit bat (rousettus leschenaultii) captured in maharashtra state, india. partial sequence analysis of the dna polymerase gene shows this isolate to be a newly recognized member of the genus mastadenoviru ...201222572722
recent transmission of a novel alphacoronavirus, bat coronavirus hku10, from leschenault's rousettes to pomona leaf-nosed bats: first evidence of interspecies transmission of coronavirus between bats of different suborders.although coronaviruses are known to infect various animals by adapting to new hosts, interspecies transmission events are still poorly understood. during a surveillance study from 2005 to 2010, a novel alphacoronavirus, batcov hku10, was detected in two very different bat species, ro-batcov hku10 in leschenault's rousettes (rousettus leschenaulti) (fruit bats in the suborder megachiroptera) in guangdong and hi-batcov hku10 in pomona leaf-nosed bats (hipposideros pomona) (insectivorous bats in th ...201222933277
serological evidence of toxoplasma gondii infection in five species of bats in china.toxoplasma gondii is an obligate intracellular protozoan parasite that can infect almost all warm-blooded animals and humans with a worldwide distribution. bats are reservoirs for an increasing number of emerging zoonotic viruses, such as henipaviruses and severe acute respiratory syndrome coronavirus (sars-cov). however, little is known of t. gondii infection in bats. the objective of the present study was to determine the seroprevalence of t. gondii infection in bats in china. a total of 217 s ...201323473226
molecular characterization of cryptosporidium in bats from yunnan province, southwestern china.the present study was conducted to investigate the prevalence and genotypes of cryptosporidium in bats. a total of 247 bats, belonging to rhinolophus sinicus , rousettus leschenaultia, aselliscus stoliczkanus , and hipposideros fulvus , were collected in yunnan province, southwestern china, and the intestinal tissues were examined for cryptosporidium infection by pcr amplification of the small subunit ribosomal rna (ssu rrna). the overall infection rate was 7.7% (95% ci, 4.5 to 11.0%), with r. s ...201323886252
characterization of the mitochondrial genome of rousettus leschenaulti.we present a complete sequence of mitochondrial genome of echolocating megabat rousettus leschenaulti (16,704 nt, genbank record kc702803) and provide its annotation. we also show that phylogenetic analysis based on mitochondrial genomes of eighteen bat species, including r. leschenaulti, supports division of chiroptera into yinpterochiroptera and yangochiroptera.201423815317
malsoor virus, a novel bat phlebovirus, is closely related to severe fever with thrombocytopenia syndrome virus and heartland virus.during a survey in the year 2010, a novel phlebovirus was isolated from the rousettus leschenaultii species of bats in western india. the virus was identified by electron microscopy from infected vero e6 cells. phylogenic analysis of the complete genome showed its close relation to severe fever with thrombocytopenia syndrome (sfts) and heartland viruses, which makes it imperative to further study its natural ecology and potential as a novel emerging zoonotic virus.201424390329
filovirus rna in fruit bats, china. 201526291173
[detection of serum antibodies against japanese encephalitis virus in bats in hainan and guangdong provinces of china].to investigate the prevalence of serum antibodies against japanese encephalitis virus (jev) in bats.201526018270
a bat-derived putative cross-family recombinant coronavirus with a reovirus gene.the emergence of severe acute respiratory syndrome coronavirus (sars-cov) in 2002 and middle east respiratory syndrome coronavirus (mers-cov) in 2012 has generated enormous interest in the biodiversity, genomics and cross-species transmission potential of coronaviruses, especially those from bats, the second most speciose order of mammals. herein, we identified a novel coronavirus, provisionally designated rousettus bat coronavirus gccdc1 (ro-batcov gccdc1), in the rectal swab samples of rousett ...201627676249
thrice better than once: quality control guidelines to validate new mitogenomes.mitogenomic data are increasingly used in evolutionary biology and ecology, stressing the importance for double checking the authenticity of dna sequences. for example, szcześniak et al. (2013) recently published the mitochondrial genome of a bat, the leschenault's rousette (rousettus leschenaultii). here we show using straightforward phylogenetic analyses of available chiropteran sequence data that the taxonomic attribution of the reported mitogenome is erroneous. the purportedly-new complete m ...201624708133
microbiome analysis reveals the abundance of bacterial pathogens in rousettus leschenaultii guano.bats are crucial for proper functioning of an ecosystem. they provide various important services to ecosystem and environment. while, bats are well-known carrier of pathogenic viruses, their possible role as a potential carrier of pathogenic bacteria is under-explored. here, using culture-based approach, employing multiple bacteriological media, over thousand bacteria were cultivated and identified from rousettus leschenaultii (a frugivorous bat species), the majority of which were from the fami ...201627845426
isolation of kaeng khoi virus (kkv) from eucampsipoda sundaica bat flies in china.a virus strain (wdbc1210) was isolated from specimens of bat flies (eucampsipoda sundaica) associated with leschenault's rousette (rousettus leschenaultii) in the china-myanmar border area of yunnan province, china. both bhk-21 and veroe6 cells infected with wdbc1210 showed evident cytopathic effects (cpe), and the highest propagation titer was 1×10(5.6). the virus particles were spherical, 70nm in diameter. virus plaques could be observed in bhk-21 cells. the whole genome of wdbc1210 contained ...201728606385
bats host diverse parvoviruses as possible origin of mammalian dependoparvoviruses and source for bat-swine interspecies transmission.compared to the enormous species diversity of bats, relatively few parvoviruses have been reported. we detected diverse and potentially novel parvoviruses from bats in hong kong and mainland china. parvoviruses belonging to amdoparvovirus, bocaparvovirus and dependoparvovirus were detected in alimentary, liver and spleen samples from 16 different chiropteran species of five families by pcr. phylogenetic analysis of partial helicase sequences showed that they potentially belonged to 25 bocaparvov ...201729106348
detection and identification of the bat circovirus btcv-ds13.the bat circovirus has been detected from different bat species and regions after detection in rousettus leschenaultia. to enrich the epidemiologic data of the bat circovirus, a complete sequence named "btcv-ds13" was obtained by nested polymerase chain reaction and genome walking? based on the intestines of myotis davidii from zhoushan island (zhejiang province, china). the complete length of btcv-ds13 was 1873nt, and it had the typical gene structure of a circovirus according to sequencing ana ...201730702826
serosurvey of malsoor virus amongrousettus leschenaultibat & human population residing nearby robber's cave, mahabaleshwar, maharashtra, india. 201729434071
a novel adenovirus isolated from the egyptian fruit bat in south africa is closely related to recent isolates from china.recently a number of novel adenoviruses have been isolated from diverse bat species and from diverse geographical locations. we describe the isolation of a novel adenovirus (family adenoviridae, genus mastadenovirus) from a pool of liver and spleen tissue of an apparently healthy wild-caught egyptian fruit bat (rousettus aegyptiacus) in south africa. genetically the virus is most closely related to four mastadenoviruses recently isolated in china, from miniopterus schreibersi and rousettus lesch ...201829942032
detection of neospora caninum dna by polymerase chain reaction in bats from southern china.neospora caninum is an intracellular protozoan that infects many domestic and wild animals. domestic dogs and other canids function as definitive hosts, while other mammals serve as natural intermediate hosts. in the present study, the brain tissues of bats collected in yunnan province, southern china were tested by n. caninum specific-nested pcr, targeting the nc-5 gene and the internal transcribed spacer 1 (its1) region of the ribosomal dna to determine whether bats could be infected with n. c ...201829581030
detection and characterization of a novel bat-borne coronavirus in singapore using multiple molecular approaches.bats are important reservoirs and vectors in the transmission of emerging infectious diseases. many highly pathogenic viruses such as sars-cov and rabies-related lyssaviruses have crossed species barriers to infect humans and other animals. in this study we monitored the major roost sites of bats in singapore, and performed surveillance for zoonotic pathogens in these bats. screening of guano samples collected during the survey uncovered a bat coronavirus (betacoronavirus) in cynopterus brachyot ...201931418677
first report of the prevalence and genotype of trypanosoma spp. in bats in yunnan province, southwestern china.trypanosome is considered as one of important parasites in almost all mammalian species, which occurs in chiroptera throughout the world. although numerous trypanosome species have been identified in bats in asia, africa, south america and europe, little is known about the genetic diversity and pathogenicity of trypanosomes in chinese bat. recently, some human trypanosoma cruzi infection attributed to a bat-related t. cruzi (tcbat) from the noctilio spp., myotis spp. and artibeus spp was found. ...201931348896
filovirus-reactive antibodies in humans and bats in northeast india imply zoonotic spillover.bats are reservoirs for several zoonotic pathogens, including filoviruses. recent work highlights the diversity of bat borne filoviruses in asia. high risk activities at the bat-human interface pose the threat of zoonotic virus transmission. we present evidence for prior exposure of bat harvesters and two resident fruit bat species to filovirus surface glycoproteins by screening sera in a multiplexed serological assay. antibodies reactive to two antigenically distinct filoviruses were detected i ...201931671094
the spleen morphophysiology of fruit bats.spleen is one of the important lymphoid organs with wide variations of morphological and physiological functions according to species. morphology and function of the spleen in bats, which are hosts to several viral strains without exhibiting clinical symptoms, remain to be fully elucidated. this study aims to examine the spleen morphology of fruit bats associated with their physiological functions. spleen histological observations were performed in three fruit bats species: cynopterus titthaeche ...201930968443
isolation and identification of a highly divergent kaeng khoi virus from bat flies (eucampsipoda sundaica) in china.kaeng khoi virus (kkv), which belongs to the genus orthobunyavirus, family perbunyaviridae, was originally isolated from the brain tissue of bats and may cause infection in humans. in this study, the kkv strain wdbc1403 was isolated from bat flies (eucampsipoda sundaica), ectoparasites of the bat rousettus leschenaultia, collected from yunnan province of china at the sino-burmese border.201930526415
seroreactive profiling of filoviruses in chinese bats reveals extensive infection of diverse viruses.southern china is a hot spot of emerging infectious diseases, in which diverse species of bats dwell, a large group of flying mammals considered natural reservoirs for zoonotic viruses. recently, divergent filoviruses (fivs) have been identified in bats within this region, which pose a potential risk to public health, but the true infection situation in bats remains largely unclear. here, 689 archived bat serum samples were analyzed by enzyme-linked immunosorbent assay (elisa), western blotting, ...202031941778
extracellular matrix composition of different spleen compartments of fruit bats.the distribution and composition of extracellular matrix (ecm) of the spleen in two species of fruit bats, namely cynopterus titthaecheilus and rousettus leschenaultii, were examined by histochemistry and immunohistochemistry. reticular fibres accompanied by laminin were identified to make up the splenic stromal network. types i and iii collagen were identified in various spleen compartments with varying intensities. thin and short elastin fibres were scattered in several parts of the spleen. vi ...202031877588
ultrastructure of the secretory epithelial cells of the cowper's gland in the indian fruit bat, rousettus leschenaulti (desmarest) during the reproductive cycle.the present paper describes the ultrastructural characteristics of the cowper' glands of the indian fruit bat, rousettus leschenaulti during its sexually inactive-breeding cycle. the functional significance of the secretions of the cowper's gland in reproduction is discussed. in rousettus, cowper's glands are small, pear-shaped, bilaterally symmetrical and are situated on either side of the base of the penis. each lobule is made up of secretory acini lined by columnar or pyramidal cells. ultrast ...202030023222
inward collapse of the nasal cavity: perinatal consolidation of the midface and cranial base in primates.living primates show a complex trend in reduction of nasal cavity spaces and structures due to moderate to severe constraint on interorbital breadth. here we describe the ontogeny of the posterior end of the primate cartilaginous nasal capsule, the thimble shaped posterior nasal cupula (pnc), which surrounds the hind end of the olfactory region. we used a histologically sectioned sample of strepsirrhine primates and two non-primates (tupaia belangeri, rousettus leschenaulti), and histochemical a ...202033040450
comparative genomic analyses illuminate the distinct evolution of megabats within chiroptera.the revision of the sub-order microchiroptera is one of the most intriguing outcomes in recent mammalian molecular phylogeny. the unexpected sister-taxon relationship between rhinolophoid microbats and megabats, with the exclusion of other microbats, suggests that megabats arose in a relatively short period of time from a microbat-like ancestor. in order to understand the genetic mechanism underlying adaptive evolution in megabats, we determined the whole-genome sequences of two rousette megabat ...202032966557
epidemiology and molecular characterization of rotavirus a in fruit bats in bangladesh.rotavirus a (rva) is the primary cause of acute dehydrating diarrhea in human and numerous animal species. animal-to-human interspecies transmission is one of the evolutionary mechanisms driving rotavirus strain diversity in humans. we screened fresh feces from 416 bats (201 pteropus medius, 165 rousettus leschenaultii and 50 taphozous melanopogon) for rva using rrt-pcr. we detected a prevalence of 7% (95% ci 3.5-10.8) and 2% (95% ci 0.4-5.2) in p. medius and r. leschenaultii, respectively. we d ...202032876756
fissures, folds, and scrolls: the ontogenetic basis for complexity of the nasal cavity in a fruit bat (rousettus leschenaultii).mammalian nasal capsule development has been described in only a few cross-sectional age series, rendering it difficult to infer developmental mechanisms that influence adult morphology. here we examined a sample of leschenault's rousette fruit bats (rousettus leschenaultii) ranging in age from embryonic to adult (n = 13). we examined serially sectioned coronal histological specimens and used micro-computed tomography scans to visualize morphology in two older specimens. we found that the develo ...202032602652
role of pattern recognition receptors and interferon-beta in protecting bat cell lines from encephalomyocarditis virus and japanese encephalitis virus infection.bats are potential natural hosts of encephalomyocarditis virus (emcv) and japanese encephalitis virus (jev). bats appear to have some unique features in their innate immune system that inhibit viral replication causing limited clinical symptoms, and thus, contributing to the virus spill over to humans. here, kidney epithelial cell lines derived from four bat species (pteropus dasymallus, rousettus leschenaultii, rhinolophus ferrumequinum, and miniopterus fuliginosus) and two non-bat species (hom ...202032446351
characteristics of the endometrium in menstruating species: lessons learned from the animal kingdom†.here we have summarized what is currently known about menstruating animal species with special emphasis on non-primate species: length of their menstrual cycle, ovulation, implantation, placentation, decidualization, and endometrial characteristics. having an overview of all the possible animal models that can be used to study menstruation and the menstrual cycle could be useful to select the one that better matches the needs of the individual research projects. the most promising species to stu ...202032129461
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