Light and transmission electron microscopy of the haptoral sclerites of the monogenean gill parasite Macrogyrodactylus clarii.

abstract：:The accuracies of relative gene expressions as determined by quantitative real-time polymerase chain reaction are largely dependent on the variabilities of the reference genes used. Validation of the stabilities of reference genes under experimental conditions is an essential initial step for comparative studies on th...

journal_title：Parasitology research

authors： Yoo WG,Kim TI,Li S,Kwon OS,Cho PY,Kim TS,Kim K,Hong SJ

更新日期：2009-01-01 00:00:00

abstract：:The proboscis apex of the eoacanthocephalan parasite Paratenuisentis ambiguus was studied, using electron and light microscopy, for a better understanding of the parasite's attachment at the intestinal wall of its definitive hosts (Anguilla rostrata and A. anguilla). The results suggest the presence of an epidermis co...

journal_title：Parasitology research

authors： Herlyn H

更新日期：2001-04-01 00:00:00

abstract：:A fundamental aim of parasite ecology is to understand the mechanisms behind spatial variation in diversity and structure of parasite assemblages. To understand the contribution of individual parasite species and their assemblages to spatial variation in parasite communities, we examined species contributions to beta ...

journal_title：Parasitology research

authors： Spickett A,van der Mescht L,Junker K,Krasnov BR,Haukisalmi V,Matthee S

更新日期：2019-10-01 00:00:00

abstract：:Toxoplasmosis represents an important public health issue, with the consumption of raw or undercooked meat being a major way of human infection. The role of beef in the transmission of the parasite to humans is questioned due to lower quantity of tissue cysts compared with other meat-producing species. However, the ha...

journal_title：Parasitology research

authors： Gazzonis AL,Marino AMF,Garippa G,Rossi L,Mignone W,Dini V,Giunta RP,Luini M,Villa L,Zanzani SA,Manfredi MT

更新日期：2020-11-01 00:00:00

abstract：:The Asian tiger mosquito Aedes albopictus has undergone a dramatic expansion of its range in the last few decades. Since its first detection in 2007 in Germany at the motorway A5 coming from Italy via Switzerland to Germany, it has been continuously introduced by vehicles, most probably from Italy. After a hint from a...

journal_title：Parasitology research

authors： Becker N,Schön S,Klein AM,Ferstl I,Kizgin A,Tannich E,Kuhn C,Pluskota B,Jöst A

更新日期：2017-03-01 00:00:00

abstract：:In order to identify brain cell types that serve as host cells of Toxoplasma gondii encystation primary cultures from murine brain were infected and stained for neural and parasite stage-specific markers. In mixed culture inoculated with T. gondii tachyzoites, MAP2+ neurons, GFAP+ astrocytes, F4/80+ microglia, and O1+...

journal_title：Parasitology research

authors： Fischer HG,Nitzgen B,Reichmann G,Gross U,Hadding U

更新日期：1997-01-01 00:00:00

abstract：:More than 30 species of coccidian parasites have been described in Chelonidae (tortoises and turtles). Eimeria spp. are apparently the most common coccidia in chelonians. Findings of Caryospora cheloniae, Isospora sp., and Mantonella sp. have also been published, but reports about systemic coccidiosis are rare. We des...

journal_title：Parasitology research

authors： Schmidt V,Dyachenko V,Aupperle H,Pees M,Krautwald-Junghanns ME,Daugschies A

更新日期：2008-02-01 00:00:00

abstract：:Bimiracidial infections of Lymnaea ovata with Fasciola hepatica were performed under laboratory conditions to determine the susceptibility of snails from six French populations to trematode infection. In five populations of L. ovata the prevalence of infection in the 1-mm groups ranged between 2.7% and 43.7% at day 35...

journal_title：Parasitology research

authors： Dreyfuss G,Vignoles P,Rondelaud D

更新日期：2000-01-01 00:00:00

abstract：:The morphology of the scolex of the tapeworm Silurotaenica siluri (Batsch, 1786) (Proteocephalidae: Gangesiinae), a specific parasite of European wels (Silurus glanis L.), was studied using light, scanning (SEM), and transmission electron (TEM) microscopy. The scolex of S. siluri is rather uniform in shape and size; i...

journal_title：Parasitology research

authors： Scholz T,Zd'árská Z,de Chambrier A,Drábek R

更新日期：1999-01-01 00:00:00

abstract：:Leishmania (L.) tropica is a causative agent of cutaneous and occasionally visceral or viscerotropic leishmaniasis in humans. The dose of parasites influences the course and outcome of disease in some Leishmania species. The effect of parasite dose on L. tropica infection in an experimental model was studied in the cu...

journal_title：Parasitology research

authors： Rostamian M,Jafari D,Abolghazi M,Farahani H,Niknam HM

更新日期：2018-09-01 00:00:00

abstract：:In patients infected with Trichuris trichiura, large eggs as well as more typical eggs were frequently found in the feces; these large eggs have been attributed to human infection by T. vulpis. To clarify whether the female worms laying the large eggs were T. trichiura or T. vulpis, we examined the morphology of adult...

journal_title：Parasitology research

authors： Yoshikawa H,Yamada M,Matsumoto Y,Yoshida Y

更新日期：1989-01-01 00:00:00

abstract：:Studies of the immune response in chronic helminth infections suggest that parasites modulate the host's immune response. Taenia solium metacestodes, in particular, produce molecules that down-regulate cell-mediated immunity. We have described a small RNA peptide termed metacestode factor (MF) that depresses the murin...

journal_title：Parasitology research

authors： Arechavaleta F,Molinari JL,Tato P

更新日期：1998-01-01 00:00:00

abstract：:Two thousand four hundred fifty-eight fish comprised of 53 species were captured in the Danjiangkou Reservoir, in the northwestern part of Hubei Province, central China during 2004, to examine Camallanus cotti infections. We found that 19 cypriniform, 3 siluriforme, and 4 perciforme fishes were infected by the nematod...

journal_title：Parasitology research

authors： Wu S,Wang G,Gao D,Xi B,Yao W,Liu M

更新日期：2007-07-01 00:00:00

abstract：:The purpose of the present study was to assess the effect of crude extracts of marine actinobacteria on larvicidal, repellent, and ovicidal activities against Culex tritaeniorhynchus and Culex gelidus (Diptera: Culicidae). The early fourth instar larvae of C. tritaeniorhynchus and C. gelidus, reared in the laboratory,...

journal_title：Parasitology research

authors： Karthik L,Gaurav K,Rao KV,Rajakumar G,Rahuman AA

更新日期：2011-06-01 00:00:00

abstract：:Haematophagous leeches express a broad variety of bioactive factors that are released from the salivary gland cells into the wound of a host during feeding. Among these, hirudin is probably the best studied factor and, moreover, the only one that has successfully made the transition from nature to clinical use. Many c...

journal_title：Parasitology research

authors： Müller C,Haase M,Lemke S,Hildebrandt JP

更新日期：2017-01-01 00:00:00

abstract：:Although miltefosine (MIL) has only recently been positioned as a first-line therapeutic option for visceral leishmaniasis, field reports note an increasing trend in treatment failures. Study of laboratory selected MIL-resistant strains is needed in the absence of confirmed resistant clinical isolates. In contrast to ...

journal_title：Parasitology research

authors： Hendrickx S,Mondelaers A,Eberhardt E,Lachaud L,Delputte P,Cos P,Maes L

更新日期：2015-07-01 00:00:00

abstract：:This study is part of an effort to document the diversity of avian schistosomes in ducks and snails in Northern Iran, a major flyway (Black Sea/Mediterranean) for migratory birds and where cercarial dermatitis (CD) is prevalent in rice growing areas. CD is an allergic skin reaction from schistosome trematodes that eme...

journal_title：Parasitology research

authors： Ashrafi K,Nouroosta A,Sharifdini M,Mahmoudi MR,Rahmati B,Brant SV

更新日期：2018-12-01 00:00:00

abstract：:A new Eimeria species is described from a common bronzewing pigeon (Phaps chalcoptera) (Latham, 1790) in Western Australia. Sporulated oocysts of Eimeria chalcoptereae n. sp. (n = 30) are subspheroidal, 22-25 × 21-24 (23.5 × 22.6) μm; length/width (L/W) ratio 1.0-1.1 (1.04) μm. Wall bi-layered, 1.0-1.4 (1.2) μm thick,...

journal_title：Parasitology research

authors： Yang R,Brice B,Berto BP,Ryan UM

更新日期：2020-11-01 00:00:00

abstract：:This work describes a simple method to yield large amounts of Leishmania amastigote-like forms in axenic cultures using promastigotes as the starting population. The method described induced extracellular amastigote transformation of Leishmania amazonensis (97%), Leishmania braziliensis (98%) and Leishmania chagasi (9...

journal_title：Parasitology research

authors： Teixeira MC,de Jesus Santos R,Sampaio RB,Pontes-de-Carvalho L,dos-Santos WL

更新日期：2002-11-01 00:00:00

abstract：:Entamoeba histolytica forms chitin-walled cysts during encystation process, where formation of the cyst wall needs not only chitin synthase but also chitinase. During excystation, quadruplet amoebae emerge from the chitin-walled cysts by dissolving the wall, so that chitinase may be necessary for excystation process a...

journal_title：Parasitology research

authors： Makioka A,Kumagai M,Hiranuka K,Kobayashi S,Takeuchi T

更新日期：2011-08-01 00:00:00

abstract：:Limited data is available on the vertical transmission of Neospora caninum via the colostrum. The results of our previous research revealed the presence of N. caninum DNA in the milk of seropositive cows. The aim of the present work is to demonstrate parasite DNA in colostrum samples. A polymerase chain reaction using...

journal_title：Parasitology research

authors： Moskwa B,Pastusiak K,Bien J,Cabaj W

更新日期：2007-02-01 00:00:00

abstract：:The internal transcribed spacer (ITS) region was used to study the intraspecies variation of Brugia spp. in cat reservoirs. Blood specimens from seven naturally infected cats were collected from two different geographical brugian-endemic areas in Thailand. The DNAPAR tree of these Brugia spp. was constructed using a m...

journal_title：Parasitology research

authors： Areekit S,Singhaphan P,Khuchareontaworn S,Kanjanavas P,Sriyaphai T,Pakpitchareon A,Khawsak P,Chansiri K

更新日期：2009-06-01 00:00:00

abstract：:Adult liver flukes belonging to three isolates of differing sensitivity to triclabendazole were incubated for 24 h in vitro in nitroxynil at a concentration of 100 microg/ml. Fine structural changes to the tegument, sub-tegumental region and gut were assessed by transmission electron microscopy. Similar changes were o...

journal_title：Parasitology research

authors： McKinstry B,Halferty L,Brennan GP,Fairweather I

更新日期：2009-02-01 00:00:00

abstract：:Members of the genus Crassicauda (Nematoda: Spirurida) are parasites of the body tissues of whales and dolphins. Owing to the large size of worms and difficulties in the recovery of entire nematodes from the tissues of hosts, limited information is available on morphological descriptions of both male and female worms....

journal_title：Parasitology research

authors： Jabbar A,Beveridge I,Bryant MS

更新日期：2015-03-01 00:00:00

abstract：:The Leishmania amazonensis telomerase gene was cloned by a polymerase chain reaction-based strategy using primers designed from a Leishmania major sequence that shared similarities with conserved telomerase motifs. The genes from three other species were cloned for comparative purposes. A ClustalW multiple-sequence al...

journal_title：Parasitology research

authors： Giardini MA,Lira CB,Conte FF,Camillo LR,de Siqueira Neto JL,Ramos CH,Cano MI

更新日期：2006-04-01 00:00:00

abstract：:Intraspecific variation in Schistosoma mansoni infection and modulation of its expression by vertebrate host genetics was studied by evaluation of some biological parameters of the infection in BALB/c and C57BL/6 mice infected with one Brazilian (BH) and two Venezuelan (YT and SM) laboratory strains of the parasite. M...

journal_title：Parasitology research

authors： Nino Incani R,Morales G,Cesari IM

更新日期：2001-02-01 00:00:00

abstract：:Seventy perch (Perca fluviatilis) caught in Lake Constance at Langenargen in May 1990 were examined for parasites. The frequency distributions of the eyefluke Diplostomum spathaceum (Rudolphi, 1819), and the tapeworms Proteocephalus percae (Müller, 1780) and Triaenophorus nodulosus (Pallas, 1781) fitted closely to a n...

journal_title：Parasitology research

authors： Balling TE,Pfeiffer W

更新日期：1997-01-01 00:00:00

abstract：:Gray mullet (Mugilidae) occur in all seas and are farmed widely around the world, and thus, the risk of their parasites spreading through transport of aquaculture seed is a serious concern. Among others, gray mullets typically host a diversity of myxosporeans, a group in which spore morphometrics of genera has been co...

journal_title：Parasitology research

authors： Sharon G,Ucko M,Tamir B,Diamant A

更新日期：2019-01-01 00:00:00

abstract：:The experimental transmission of a recently identified new Theileria (China 1) species pathogenic for sheep and goats in northern China is described. Haemaphysalis qinghaiensis nymphs and adults developed from larvae and nymph engorged on sheep infected with Theileria sp. (China 1) were able to respectively transmit t...

journal_title：Parasitology research

authors： Li Y,Luo J,Liu Z,Guan G,Gao J,Ma M,Dang Z,Liu A,Ren Q,Lu B,Liu J,Zhao H,Li J,Liu G,Bai Q,Yin H

更新日期：2007-08-01 00:00:00

abstract：:Filter-feeding molluscan shellfish can concentrate environmentally derived waterborne pathogens of humans, which can be utilized in the sanitary assessment of water quality. In the present study, oocysts of Cryptosporidium were detected in Bent mussels (Ischadium recurvum) at two Chesapeake Bay sites from which C. par...

journal_title：Parasitology research

authors： Graczyk TK,Fayer R,Lewis EJ,Trout JM,Farley CA

更新日期：1999-07-01 00:00:00