First natural helminth infection in the mongolian gerbil Meriones unguiculatus (Rodentia, Muridae), parasitized with Dentostomella translucida (Nematoda, Heteroxynematidae) in the neotropical region

Pinto, Roberto Magalhães; Gomes, Delir Corrêa; Menezes, Rodrigo Caldas; Muniz-Pereira, Luís C.; Noronha, Dely

doi:10.1590/s1519-69842003000100022

Cited by 6 publications

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References 3 publications

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“…The results were compared with available data which describe D. translucida in details (Ryzihkov et al 1979 andPinto et al 2003). Our material conforms to the previous descriptions of the species.…”

supporting

confidence: 77%

“…Later infections with D. translucida were recorded also in pet gerbils from the United States (Wightman et al 1978) and Brazil (Pinto et al 2003). To date the parasite has not been reported in Europe.…”

mentioning

confidence: 97%

“…According to Petter and Quentin (1976), D. translucida is a specific nematode of Gerbillidae. Naturally infected free-living gerbils have been reported in Asia (Ryzhikov et al 1979) while infections of pet gerbils with D. translucida are recorded from the USA and Brazil (Wightman et al 1978, Wilkerson et al 2001, Pinto et al 2003. Finding the nematode in Europe suggests that D. translucida is strictly associated with its natural host and even a change in the host's habitat does not affect the host-parasite relationship.…”

mentioning

confidence: 99%

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Dentostomella translucida Schulz et Krepkorgorskaya, 1932 (Nematoda, Heteroxynematidae), a new species for the European nematofauna

Zaleśny

Hildebrand

Popiołek

et al. 2008

Acta Parasitologica

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A nematode Dentostomella translucida was found during parasitological examination of a pet Mongolian gerbil Meriones unguiculatus. Gerbils in the wild are known as hosts of this parasite in Asia, pet gerbils -in the USA and Brazil. Our record is the first in Europe. Complete descriptions of male and female individuals are given. KeywordsNematoda, Heteroxynematidae, Dentostomella translucida, gerbils, pets * Corresponding author: zalesny@microb.uni.wroc.plThe oxyurid Dentostomella translucida Schulz et Krepkorgorskaya, 1932 is a nematode parasitizing the large intestine of gerbils. It was originally described by Schulz and Krepkorgorskaya (1932) from the great gerbil Rhombomys opimus Lichtenstein, 1823.According to Ryzhikov et al. (1979) the parasite occurs in Asian countries, mainly Kazakhstan, Turkmenistan and Uzbekistan. Later infections with D. translucida were recorded also in pet gerbils from the United States (Wightman et al. 1978) and Brazil (Pinto et al. 2003). To date the parasite has not been reported in Europe.During a standard parasitological dissection 13 nematodes were found in the caecum of a pet Mongolian gerbil Meriones unguiculatus Milne-Edwards, 1867 which died for unknown reasons. The parasites were fixed and kept in 70% ethanol, then cleared for examination in glycerol. Complete morphometric data were obtained from 5 adult females and 4 juvenile males.In order to find out if infection with this nematode was common among the gerbils from pet shops in Wroc³aw, faecal samples for coprological analyses were collected from 6 gerbil colonies. They were examined for the presence of parasite eggs, using the standard flotation method with saturated solution of sodium chloride.The results were compared with available data which describe D. translucida in details (Ryzihkov et al. 1979 andPinto et al. 2003). Our material conforms to the previous descriptions of the species. The measurements of the most representative structures of D. translucida, expressed in millimetres (mean ± standard deviation, range in brackets), are given below.Females: Body 22.23 ± 3.03 (19.15-26.50) long, 0.40 ± 0.05 (0.31-0.44) wide. Head with 4 submedian papillae, lips absent, buccal cavity shallow (Fig. 1A, C). Oesophagus 0.34 ± 0.02 (0.32-0.36) long. Excretory pore not observed. Vulval aperture 10. 48 ± 0.76 (9.95-11.35) from anterior extremity. Eggs oval, asymmetrical, 0.123 ± 0.006 (0.110-0.130) long, 0.044 ± 0.002 (0.038-0.048) wide (Fig. 1D). Anus 0.58 ± 0.13 (0.48-0.77) from the posterior end (Fig. 1B).Males (juvenile specimens): Body 9.69 ± 1.48 (7.56-11.00) long, 0.26 ± 0.03 (0.23-0.28) wide. Head structures same as described for females. Oesophagus 0.27 ± 0.01 (0.25-0.28). Excretory pore not observed. Caudal alae wide (Fig. 1E). Single spicule 0.34 ± 0.01 (0.33-0.34) long with round-

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supporting

confidence: 77%

mentioning

confidence: 97%

mentioning

confidence: 99%

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Dentostomella translucida Schulz et Krepkorgorskaya, 1932 (Nematoda, Heteroxynematidae), a new species for the European nematofauna

Zaleśny

Hildebrand

Popiołek

et al. 2008

Acta Parasitologica

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Section: Introductionmentioning

confidence: 99%

“…The Mongolian jird Meriones unguiculatus Milne-Edwards, 1867 (Rodentia: Muridae) has quite recently been introduced to pet stores and laboratory animal facilities in Brazil without an accurate evaluation of its helminth parasite fauna, as Pinto et al (2003) pointed out. Although natural parasitism of M. unguiculatus by R. nana has been reported previously in specimens of a pet shop colony in the USA (Lussier & Loew, 1970), as well as parasitism of other rodent breeding colonies in Brazil (Pinto et al, 1994(Pinto et al, , 2001Gonc ¸alves et al, 1998), there are still no studies on the host-parasite relationship of R. nana in experimental infections of M. unguiculatus.…”

Section: Introductionmentioning

confidence: 99%

Experimental infection and adaptation ofRodentolepis nanato the Mongolian jirdMeriones unguiculatus

Vianna

Melo

2007

J. Helminthol.

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A mouse-derived strain of Rodentolepis ( = Hymenolepis) nana was transferred to the Mongolian jird Meriones unguiculatus. It was found that M. unguiculatus has low susceptibility to R. nana mouse isolates. Likewise, adaptation of the parasite to jird hosts, in the absence of dexamethasone treatment, was not demonstrable, at least during ten-passage trials. Nevertheless, the parasite was able to establish, grow and develop to gravid adults in M. unguiculatus treated daily with dexamethasone. Prepatent periods in dexamethasone-treated jirds in ten-passage series ranged from 10 to 17 days post-infection (DPI), the average being 12 days, and the patent periods lasted from 18 to 30 DPI, with an average of 25 days. The population pattern of faecal egg output in immunosuppressed jirds suggests that under a daily dexamethasone treatment protocol, the parasite is able to maintain egg production as long as treatment is sustained.

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Survey of intestinal helminths collected from pet rodents in México

et al. 2017

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In this survey, intestinal helminths from pet rodents in Mérida, México, were analyzed. A total of 46 mice Mus musculus, 28 hamsters Mesocricetus auratus, 23 rats Rattus norvegicus, and 1 gerbil Meriones unguiculatus were purchased from six pet shops and one black market for wildlife in the city of Mérida. The overall prevalence of helminths in rodents was 61.2% (60/98). Six species of helminths were identified: the zoonotic cestode Rodentolepis nana, and the nematodes Aspiculuris tetraptera, Dentostomella translucida, Syphacia obvelata, Syphacia mesocriceti, and Syphacia muris. Of the 60 infected rodents, 25 (41.7%) harbored 2 or 3 species of helminths. Rodentolepis nana was found in 4.3% of mice and 17.9% of hamsters. This is the first report of infection with S. muris in pet rats. Considering the close physical contact between pet rodents and humans, the presence of R. nana in pets represents a potential risk of transmission, especially to children and immunocompromised individuals.

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First natural helminth infection in the mongolian gerbil Meriones unguiculatus (Rodentia, Muridae), parasitized with Dentostomella translucida (Nematoda, Heteroxynematidae) in the neotropical region

Cited by 6 publications

References 3 publications

Dentostomella translucida Schulz et Krepkorgorskaya, 1932 (Nematoda, Heteroxynematidae), a new species for the European nematofauna

Dentostomella translucida Schulz et Krepkorgorskaya, 1932 (Nematoda, Heteroxynematidae), a new species for the European nematofauna

Experimental infection and adaptation ofRodentolepis nanato the Mongolian jirdMeriones unguiculatus

Survey of intestinal helminths collected from pet rodents in México

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