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1.
Summary The prevalence of Echinococcus multilocularis in 214 red foxes (Vulpes vulpes) in the southern part of Poland (Małopolskie voivodship) was evaluated post mortem in 2005. Infected foxes were found in
8 districts within 17 examined, with the prevalence from 10.0 % to 63.9 % (a mean 20.1 % in the whole study area). The highest
prevalence (41.2 % and 63.9 %) was revealed in two districts, in the south and the east of the province, respectively. The
high prevalence of E. multilocularis in red foxes in the region previously recognised as that of low parasite endemicity provides evidence for the need of regular
screening of the current epidemiological situation in foxes as well as the monitoring of humans from risk groups for early
recognition of possible AE cases. 相似文献
2.
Summary A survey for presence of Xiphinema species was undertaken in the viticulture areas of Tyrnavos, Thessally, Greece. Soil samples were collected from existing
vineyards and from fields where grapevines had been uprooted and were currently under fallow or a cereal crop. The species
X. index, X. italiae and X. pachtaicum were present in 37% of the samples with a prevalence of the last two species in uprooted fields. The occurrence of X. italiae in association with light sandy soils is discussed and compared with similar findings from other Greek grapevine areas. 相似文献
3.
G. Bagrade V. Šnábel T. Romig J. Ozoliņš M. Hüttner M. Miterpáková D. Ševcová P. Dubinský 《Helminthologia》2008,45(4):157-161
Summary 45 red foxes (Vulpes vulpes) from various regions of Latvia were examined by necropsy between 2003 and 2008 for the presence and infection intensity
of Echinococcus multilocularis. The overall prevalence was 35.6 %, with the intensity of infection ranging from 1 to 1438. Although a limited number of
foxes were examined, the prevalence was high and infected animals were found throughout the country. Considering the increasing
number of humans infected with echinococcosis in Latvia since 2002, the situation is highly suggestive of a recent emergence
of E. multilocularis. DNA sequences of four fox isolates were examined by multilocus analysis of mitochondrial and nuclear genes (cox1, nad1, rrnS, atp6, actII). All isolates were allocated to the predominant genetic form in Europe, with partial affinity of one isolate to a genotype
that had previously been reported from southern Germany. 相似文献
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5.
B. L. Zheng L. H. Xiao X. R. Wang D. M. Li Y. X. Lu Y. Zhang Q. B. Yan M. X. Song 《Helminthologia》2007,44(3):120-125
Summary To study the function of the 49 kDa excretory-secretory (ES) protein gene (P49) of Trichinella, the genes was amplified by RT-PCR from RNA of Trichinella spiralis and Trichinella nativa and several Chinese Trichinella isolates of domestic animals, and sequenced after being cloned. The amplified products of these parasites produced bands
of about 950 bp. The 97.2 % to 100 % nucleotides identity and 94.3 % to 100 % identity of deduced amino acids among P49 gene
of these Trichinella strains showed the close relationship of these parasites. The P49 gene of T. nativa was cloned into the BamHI site of the prokaryotic expression vector pET-30a, and the recombinant vector was expressed. The
expressed product was 40.8 kDa in size. In Western blot analysis, the expressed product was reactive to sera of mice infected
with T. nativa, T. spiralis and their Chinese geographical strains. 相似文献
6.
E. Karanastasi I. L. P. M. da Conceição M. C. V. dos Santos E. A. Tzortzakakis I. M. de O. Abrantes 《Helminthologia》2008,45(1):52-53
Summary The root-knot nematode Meloidogyne arenaria was found in Greece infecting balm (Melissa officinalis L.) and grapevine (Vitis vinifera L.). The isolate from balm was M. arenaria while the one from grapevine was a mixture of M. arenaria and M. javanica (prevalent species). This is the first report of the M. arenaria species in the country in which identification was based on biochemical methods and its occurrence on balm is a new host
record. 相似文献
7.
Summary Morphological features of adult specimens of Ascaridia hermaphrodita and A. platyceri (Nematoda: Ascaridida), parasitizing parrots (Psittaciformes), were studied for the first time using scanning electron microscopy.
The morphology of A. hermaphrodita, the type species of Ascaridia, coincides fully with the generic diagnosis. The shape of the labial inner structure (two spoon-like projections), cervical
alae and spicule with cuticular wings were typical for this species. A. hermaphrodita has been found in the Czech Republic for the first time in a new host, Amazona pretrei, from Brazil. The morphology of Ascaridia platyceri does not correspond with the generic diagnosis in all aspects, as some variation was found, mainly in the presence of interlabia,
small teeth in the inner ribbon of the lips and long lateral alae. These morphological characteristics in other species of
Ascaridia are discussed. The generic diagnosis is to include the statement “interlabia very rarely present”. 相似文献
8.
Summary A pot culture experiment was carried out to study the effects of land use history and inoculation with Fusarium oxysporum f. sp. cucumberinum Owen (Foc) on soil nematodes communities during the cucumber growing season in 2007. The results showed that land use history and inoculation
had significant effects on the abundance and diversity of soil nematodes. Bacterivores were found to be the most dominant
group in this study. Irrespective of inoculation, numbers of fungivores, plant-parasites and values of trophic diversity index
(TD) and plant-parasites index (PPI) were greater in greenhouse soils (GH) than in open field vegetable soils (OF) during
the growth period of cucumber. While, the number of omnivores-predators and values of richness (SR) and maturity index (MI)
presented an opposite trend. Foc inoculation had noticeable effects on numbers of plant-parasites and some taxa, such as Helicotylenchus, Epidorlaimus at flowering stage and Aphelenchus, Tobrilus at fruiting stage. Besides, inoculation significantly affected values of PPI at flowering stage and TD at fruiting stage,
respectively. The faunal analysis showed that soil food web in GH was highly disturbed and in OF was degraded. 相似文献
9.
Summary Seventy-nine owned dogs (47 males and 32 females) from Antakya province were examined for E. granulosus by coproantigen ELISA (CHEKIT?-ECHINOTEST) between April to July in 2006. The estimated prevalence of E. granulosus infection was 8.86 % (7/79). Mean age of the dogs with E. granulosus was 2.3 years ranging from one to five years. There was no statistically significant difference regarding the prevalence
between male and female dogs. A significant difference was detected between unrestrained (or free roaming) and indoor or chained
dogs (p < 0.05). Although the prevalence of the E. granulosus infection in owned dogs in Antakya province is low, the incidence was quite high in the unrestrained and undewormed dogs.
Therefore a preventive control programme in the dogs should be initiated in this region. 相似文献
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11.
Zhiyu Zhang Qing Zheng Xiaoyu Chen Shudong Xiao Wenzhong Liu Hong Lu 《BMC gastroenterology》2008,8(1):49
Background
The prevalence of H. pylori is as high as 60–70% in Chinese population. Although duodenal ulcer and gastric cancer are both caused by H. pylori, they are at opposite ends of the spectrum and as such are considered mutually exclusive. Duodenal ulcer promoting (dupA) gene was reported to be associated with duodenal ulcer development. The aim of this study was to determine the prevalence of dupA gene of Helicobacter pylori in patients with various gastroduodenal diseases and to explore the association between the gene and other virulence factors. 相似文献12.
Summary Temporal dynamics of soil nematode community structure at the depth of 0 — 30 cm was compared under invasive Ambrosia trifida and native Chenopodium serotinum in an abandoned cropland in Northeast China. The results showed the difference of nematode taxa and dominant genera under
A. trifida and C. serotinum during the study period. Acrobeloides and Paratylenchus were found to be dominant genera under both A. trifida and C. serotinum. Helicotylenchus prevailed in soil with C. serotinum, while Macroposthonia was dominant in soil with A. trifida. Nematode taxa was higher under A. trifida than under C. serotinum from June to September. Except in the July, significantly higher numbers of plant-parasites were observed under A. trifida than under C. serotinum during the study period (P < 0.05). Nematode taxa, Simpson index and structure index were found to be sensitive indicators
that detected nematode community structural differences under A. trifida and C. serotinum during the study period. 相似文献
13.
Summary We conducted a survey of the presence, prevalence and diversity of gastrointestinal helminths in faecal samples and stomach
contents of three turtle species, — Erymnochelys madagascariensis (Chelonia: Podocnemididae), Pelomedusa subrufa and Pelusios castanoides (Chelonia: Pelomedusidae), — from several localities in Madagascar. Four nematode species were detected: Atractis chabaudi, Camallanus chelonius, Falcaustra pelusios, and Spiroxys sp. E. madagascariensis, with all four species, had the greatest helminth diversity. A. chabaudi was the community’s core species, whereas Spiroxys sp. was a satellite species. Only two species (A. chabaudi and Spiroxys sp.) were found in P. subrufa and only one, Spiroxys sp., in P. castanoides. These are the first helminthological data on E. madagascariensis, one of the most threatened freshwater turtles in the world. 相似文献
14.
Summary A male specimen of Dracunculus (Nematoda: Dracunculidae), collected in 1973 from the lung of the Papuan olive python Apodora papuana (Peters et Doria) and now deposited in the helminthological collection of the Natural History Museum in London, is identified
as Dracunculus mulbus Jones et Mulder, 2007, a species recently described from the water python Liasis fuscus Peters in northern Australia. Apodora papuana is a new host record for D. mulbus and Papua New Guinea is apparently a new geographical record. 相似文献
15.
E. Gjurčević Z. Petrinec Z. Kozarić S. Kužir V. Gjurčević Kantura M. Vučemilo P. Džaja 《Helminthologia》2007,44(4):214-216
Summary The presence of metacercariae of Centrocestus formosanus was detected on the gills of goldfish (Carassius auratus L.) imported from Singapore and obtained from two pet shops. This is the first report of the parasite in Croatia. The histopathological
changes observed lead to the conclusion that the infection could be one of the reasons for the death of goldfish. 相似文献
16.
Summary During studies on the helminth fauna of wolves inhabiting natural ecosystems of Poland, 86 scats were examined. All the samples
were collected in the autumn of 2005. Spirocerca lupi was detected with decantation and flotation techniques. The prevalence was 2.32 %. This is the first record of the parasite
from Poland and the third case of its occurrence in the wolf (Canis lupus L.) within its distribution range. 相似文献
17.
Summary Light and scanning electron microscopical examination and molecular analysis of pinworm samples collected from the Sumatran
orangutan (Pongo abelii) from Sumatra (Indonesia) revealed the presence of a new taxon, Pongobius hugoti gen. et sp. n. (Oxyuridae: Enterobiinae). The monotypic genus Pongobius is characterised by the presence of a triangular mouth, three rounded teeth and three chisel-like inner teeth in the buccal
cavity, an oesophagus with a long pharyngeal part, corpus posteriorly slightly enlarged and continuing as a pyriform bulb,
isthmus absent. These features differentiate P. hugoti from all members of the subfamily Enterobiinae. The male has a long caudal appendix (> 50% of total tail length). Molecular
analysis of the new taxon is presented for more precise identification. 相似文献
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19.
Oba-Shinjo SM Uno M Ito LS Shinjo SK Marie SK Hamajima N 《Journal of gastroenterology》2004,39(8):717-723
Background
Secretor (Se) and Lewis (Le) genes are involved in the synthesis of Lewis b (Leb) and type I antigens throughout the body, especially in the epithelial cells of gastric mucosa. Helicobacter pylori can attach to the gastric epithelial cells with the blood group antigen-binding adhesin, which binds to Leb or H type I carbohydrate structures. In a previous study, a marked association between H. pylori seropositivity and polymorphism of the Se and Le genes was observed among Japanese outpatients of a gastroenterology clinic. The present work aims to investigate the associations between Se and Le gene polymorphisms and H. pylori infection among Japanese-Brazilians.Methods The subjects consisted of 942 healthy volunteer Japanese-Brazilians, who were tested for the presence of anti-H. pylori IgG antibodies and genotyped for Se and Le polymorphisms.Results The sex-age-adjusted odds ratios (aORs) for H. pylori seropositivity were 0.99 for the Sese genotype relative to the SeSe genotype (95% confidence interval [CI], 0.73–1.33), and 1.03 for sese relative to SeSe (95% CI, 0.71–1.48). On the other hand, the aOR for the subjects with the le allele (Lele or lele) relative to the LeLe genotype was 1.48 (95% CI, 1.07–1.79). When the Se and Le genotypes were analyzed in combination according to risk group, no statistically significant association was observed.Conclusions These results are inconsistent with previous work and may have been modulated by an external factor or some other unidentified factor. Japanese-Brazilians are genotypically the same as Japanese, but their lifestyle is adapted to that of Brazil. Further investigations are necessary to clarify this influence on susceptibility to H. pylori infection. 相似文献
20.
Summary
Pomphorhynchus laevis (Müller, 1776) was recovered from Marsh frogs (Rana ridibunda), collected in three localities, Yesilirmak River (Amasya Province), Civril Isikli Lake and Bagbasi district (Denizli Province)
from Turkey. This is the first report of Pomphorhynchus laevis from a frog in Turkey. 相似文献