-
Description of Saccocoelioides miguelmontesi n. sp. (Digenea: Haploporidae) from characid fishes in the Iguazu River Basin based on morphological and molecular evidence J. Helminthol. (IF 1.6) Pub Date : 2024-03-13 M.M. Montes, Y. Croci, J. Barneche, W. Ferrari, G. Reig Cardarella, S. Martorelli
Here we describe a new species of the genus Saccocoelioides found parasitizing Astyanax dissimilis Garavello & Sampaio, Psalidodon bifasciatus (Garavello and Sampaio) and Bryconamericus ikaa Casciotta, Almirón & Azpelicueta from the Iguazu National Park, Misiones province, Argentina. Saccocoelioides miguelmontesi n. sp. was studied based on morphological and molecular (28S rDNA and COI mtDNA sequences)
-
An integrative taxonomy study reveals a rare new species of the genus Creptotrema (Trematoda: Allocreadiidae) in an endangered frog in South America J. Helminthol. (IF 1.6) Pub Date : 2024-03-11 E.P. Alcantara, M.B. Ebert, C. Ferreira-Silva, L.R. Forti, D.H. Morais, G. Pérez-Ponce de León, R. J. Silva
During an ecological study with a near-endangered anuran in Brazil, the Schmidt’s Spinythumb frog, Crossodactylus schmidti Gallardo, 1961, we were given a chance to analyze the gastrointestinal tract of a few individuals for parasites. In this paper, we describe a new species of an allocreadiid trematode of the genus Creptotrema Travassos, Artigas & Pereira, 1928, which possesses a unique trait among
-
Efficacy of commercially available entomopathogenic nematodes against insect pests of canola in Alberta, Canada J. Helminthol. (IF 1.6) Pub Date : 2024-03-06 D.B.M. Patuwatha Withanage, S.S. Briar, I. Edeogu
Certain entomopathogenic nematodes (EPNs) in the families Steinernematidae and Heterorhabditidae are among the most studied biocontrol tools, some of which are commercially available against pest insects. Their use against foliar and subterranean insect pests is largely unexplored in the Canadian Prairies. We conducted a laboratory-based study to produce baseline information on the biocontrol potential
-
Evidence for the co-existence of separate strains or species of Ligula in Lough Neagh, Northern Ireland J. Helminthol. (IF 1.6) Pub Date : 2024-02-28 P.D. Olson, D.T.J. Littlewood, D. Griffiths, C.R. Kennedy, C. Arme
Ligula (Cestoda: Pseudophyllidea) infections in gudgeon (Gobio gobio) and roach (Rutilus rutilus) differ markedly in the pathology that is observed in the host, particularly with respect to a tissue response and the extent of inhibition of gonadal development. The entire internal transcribed spacer (ITS) region (ITS-1, 5.8S and ITS-2) and the large subunit domains D1–D3 were sequenced and compared
-
Haplorchis infections in intermediate hosts from a clonorchiasis endemic area in Meinung, Taiwan, Republic of China J. Helminthol. (IF 1.6) Pub Date : 2024-02-28 Jiun-Jye Wang, Lee-Yii Chung, June-Der Lee, Eddy-Essen Chang, Eng-Rin Chen, David Chao, Chuan-Min Yen
Snails and freshwater fish were examined from four ponds in the Meinung township in which Clonorchis sinensis was known to be endemic 18 years ago. No metacercariae were found in 478 Tilapia nilotica, whereas of 451 Ctenopharyngodon idellus examined, 16.2%, 3.3% and 0.9% were found to be infected with Haplorchis pumilio, H. taichui and Clonorchis sinensis, respectively. In addition, there were some
-
Sympatric occurrence of Taenia saginata and Sarcocystis spp. in cattle from Narok County, Kenya: meat inspection findings with molecular validation J. Helminthol. (IF 1.6) Pub Date : 2024-02-21 D.O. Oduori, P.M. Kitala, T.M. Wachira, E. Mulinge, E. Zeyhle, S. Gabriël, P.B. Gathura
The epidemiological picture of Taenia saginata infections in Kenya is fragmented with limited available data. Although Sarcocystis species are significant meat-borne parasites, few studies have explored their occurrence in Kenya. This study aimed to estimate the occurrence of bovine cysticercosis and screen for the presence of Sarcocystis spp. A meat inspection-based survey was conducted in ten abattoirs
-
Analysis of P-gp genes relative expression associated to ivermectin resistance in Haemonchus contortus larval stages from in vitro cultures (L3 and xL3) and from gerbils (Meriones unguiculatus) (L4) as models of study J. Helminthol. (IF 1.6) Pub Date : 2024-02-15 D.E. Reyes-Guerrero, R.I. Higuera-Piedrahita, J. Maza-Lopez, P. Mendoza-de-Gives, R. Camas-Pereyra, M.E. López-Arellano
The aim of the study was to compare the relative gene expression of Haemonchus contortus P-glycoprotein genes (Hco-pgp) between fourth (L4), infective (L3), and transitory infective (xL3) larval stages as laboratory models to study ivermectin (IVM) resistance. The H. contortus resistant to IVM (IVMr) and susceptible to IVM (IVMs) strains were used to develop xL3in vitro culture and to infect Meriones
-
Description and molecular characterization of Trachactinolaimus persicus sp. n. from Iran (Nematoda, Dorylaimida, Actinolaimidae), with new insights into the taxonomy and evolutionary relationships of the genus J. Helminthol. (IF 1.6) Pub Date : 2024-02-13 M. Asgari, M. Mohammadlou, A. Eskandari, J. Abolafia, R. Peña-Santiago
A new species of the free-living nematode genus Trachactinolaimus, collected in natural habitats of northern Iran, is described, including morphological and molecular (28S-rDNA) data. Trachactinolaimus persicus sp. n. is characterized by its 1.95–2.44 mm long body, lip region weakly offset by depression and 18–20 μm wide, odontostyle 25–27 μm long, neck 540–636 μm long, pharyngeal expansion occupying
-
Avian trematodes of central European corvids are heterogeneous regarding preferences for host species and age J. Helminthol. (IF 1.6) Pub Date : 2024-02-07 J. Sitko, P. Heneberg
Corvids are highly adaptive birds that respond well to anthropogenic changes in their environment. Trematode communities of corvids were studied mainly in the 1950s through 1970s in regularly flooded parts of the Volga River delta in Russia; more recent studies and data from other regions where the corvids are in less contact with postflooding habitats are limited. Data for Corvus corax were lacking
-
China’s prevention and control experience of echinococcosis: A 19-year retrospective J. Helminthol. (IF 1.6) Pub Date : 2024-02-02 H. Gu, Y. Hu, S. Guo, Y. Jin, W. Chen, C. Huang, Z. Hu, F. Li, J. Liu
Echinococcosis poses a significant threat to public health. The Chinese government has implemented prevention and control measures to mitigate the impact of the disease. By analyzing data from the Chinese Center for Disease Control and Prevention and the State Council of the People’s Republic of China, we found that implementation of these measures has reduced the infection rate by nearly 50% between
-
Pattern of anuran infection by acanthocephalans from the Cerrado, Northeastern Brazil with a summary for South America J. Helminthol. (IF 1.6) Pub Date : 2024-02-02 B.R. dos Santos, A.A.M. Teixeira, J.M. do Nascimento, S.V. Brito
In Brazil, acanthocephalans parasitise anurans in several biomes. In the present study, we performed an analysis of acanthocephalan infections across 175 anuran individuals from the Cerrado biome, belonging to ten species: Boana raniceps, Pithecopus hypochondrialis, Scinax fuscomarginatus, Scinax x-signatus, Leptodactylus pustulatus, Leptodactylus macrosternum, Leptodactylus vastus, Physalaemus cuvieri
-
Description of Acromoldavicus xerophilus n. sp. (Nematoda, Rhabditida, Elaphonematidae) from the southern Iberian Peninsula, including a key to species of the genus J. Helminthol. (IF 1.6) Pub Date : 2024-02-02 M.-C. Robles, J. Abolafia
A new species of the genus Acromoldavicus is described from coastal sand dunes and sandy soil in the southeast of the Iberian Peninsula. Acromoldavicus xerophilus n. sp. is characterized by its 557–700 μm body length, cuticle tessellated, lip region with three pairs of expanded lips bearing a large labial expansion, primary axils bearing guard processes with two different morphology, secondary axils
-
Advances in diagnostic approaches to Fasciola infection in animals and humans: An overviews J. Helminthol. (IF 1.6) Pub Date : 2024-01-25 A. Aftab, O.K. Raina, A. Maxton, S.A. Masih
Fasciolosis, caused by Fasciola hepatica and F. gigantica, is an impediment to the livestock industry’s expansion and has a massively negative socio-economic impact due to its widespread prevalence in livestock. It is a waterborne zoonosis affecting human populations in the countries where rural economies are associated with livestock rearing. Conventional diagnosis of Fasciola infection is done by
-
A new species of Urocleidoides Mizelle & Price, 1964 from the gills of Schizodon nasutus Kner, 1858 (Characiformes, Anostomidae) in southeastern Brazil J. Helminthol. (IF 1.6) Pub Date : 2024-01-25 M. Ebert, M.M. Osaki-Pereira, G. Pérez-Ponce de León, R.J. Silva
Based on an integrative approach, this study describes a new species of Urocleidoides infesting Schizodon nasutus in the Paranapanema River basin, Brazil. The new species can be distinguished from its congeners by specific morphological features, including the shape of the male copulatory organ and accessory piece, the ventral bar shape, and the shape and size of the hooks. Molecular analyses, particularly
-
Effects of co-infection with Clonorchis sinensis on T cell exhaustion levels in patients with chronic hepatitis B J. Helminthol. (IF 1.6) Pub Date : 2024-01-24 Huimin Dong, Yuan Liao, Mei Shang, Yuechun Fu, Hongbin Zhang, Minqi Luo, Bo Hu
To investigate the effects of co-infection with Clonorchis sinensis (C. sinensis) on T cell exhaustion levels in patients with chronic hepatitis B, we enrolled clinical cases in this study, including the patients with concomitant C. sinensis and HBV infection. In this study, we detected inhibitory receptors and cytokine expression in circulating CD4+ and CD8+ T cells by flow cytometry. PD-1 and TIM-3
-
Diversity of Acanthocephala parasites in Neotropical amphibians J. Helminthol. (IF 1.6) Pub Date : 2024-01-24 L.A. Olivera, K.M. Campião
Acanthocephalans constitute a small taxonomic group related to rotifers and specialized in a parasitic lifestyle. Anurans act as paratenic and definitive hosts and infections always occur trophically. Our objective is to describe and summarize the richness of acanthocephalans in Neotropical anurans. We conducted a literature review in the main research databases, compiling data published until August
-
Influence of tides on the dissemination and related health risks of intestinal helminths along the Kribi beaches (Atlantic Coast, Southern Cameroon) J. Helminthol. (IF 1.6) Pub Date : 2024-01-24 P.A. Nana, S. Tchakonté, M. Pahane Mbiada, A.L. Fotseu Kouam, R.S. Mouchili Palena, G. Bricheux, M. Nola, T. Sime-Ngando
Kribi is a seaside town that welcomes thousands of tourists each year. However, the poor sanitation condition of its beaches along the Atlantic coast is not without risk for visitors. In this study, we used the formol-ether concentration technique to identify and quantify larvae or eggs of intestinal helminths in waters of three regularly visited Kribi beaches (Mpalla, Ngoyè, and Mboamanga). Results
-
Palaeoparasitology confirms Early Lapita evidence of pig and dog at Kamgot, Bismarck Archipelago J. Helminthol. (IF 1.6) Pub Date : 2024-01-18 M. Horrocks, G. Summerhayes, B. Presswell
Little is known about helminth parasites of the Bismarck Archipelago, in either archaeological or modern contexts. This study presents a parasitological analysis of soil samples from Early Lapita habitation layers at Kamgot (3300–3000 BP). Evidence for the presence of pigs and dogs and the timing of their arrival in Early Lapita contexts have been contested in the literature. The finding of parasite
-
Semperula wallacei (Mollusca, Veronicellidae) um hospedeiro natural recém-descoberto de Angiostrongylus cantonensis (Nematoda, Angiostrongylidae) na Bacia do Pacífico J. Helminthol. (IF 1.6) Pub Date : 2024-01-16 C.L.F. Mendonça, R.L. Caldeira, O.S. Carvalho, S. D’ávila, S.R. Gomes
Semperula wallacei (Issel, 1874) is a species of terrestrial slug that occurs in southeast China and the Pacific Basin and is the only species of its genus that occurs beyond the Oriental region and to the east of Wallace’s line in the Australian region, where it has probably been introduced. In this study, we report for the first time S. wallacei as an intermediate host for Angiostrongylus cantonensis
-
Gastrointestinal helminths of the Australasian harrier (Circus approximans Peale, 1848) in New Zealand, and description of a new species of nematode, Procyrnea fraseri n. sp. (Habronematidae) J. Helminthol. (IF 1.6) Pub Date : 2024-01-12 Bronwen Presswell, Jerusha Bennett
The Australasian harrier Circus approximans, a native of Australia, New Zealand and the South Pacific, is an opportunistic hunter of small prey, although a large part of its diet consists of carrion, mainly from roadkill. Besides a record of a single, unnamed species of capillariid nematode there have been no investigations into the parasites of Australasian harriers in New Zealand. In this study,
-
A new species of Urocleidoides Mizelle & Price 1964 (Monogenea: Dactylogyridae) parasite of Hemiodus orthonops Eigenmann & Kennedy, 1903 (Hemiodontidae) from the upper Paraná River floodplain J. Helminthol. (IF 1.6) Pub Date : 2024-01-03 W.T. Hasuike, B. Scorsim, I.S. Arjona, S. Bellay, A. V. de Oliveira, R.M. Takemoto
During the study of ectoparasites (Platyhelminthes) of fish in the floodplain of the Upper Paraná River - Brazil, a new species of Urocleidoides, present in the gill filaments of Hemiodus orthonops (Hemiodontidae), is described using morphological description and molecular data from the mitochondrial region of cytochrome c oxidase, subunit 1 (COI) and the partial region of the 28S rDNA gene. Urocleidoides
-
A new species of Versteria (Cestoda: Taeniidae) parasitizing Neogale vison and Lontra canadensis (Carnivora: Mustelidae) from Western Canada J. Helminthol. (IF 1.6) Pub Date : 2024-01-03 K.M. Shanebeck, J. Bennett, S.J. Green, C. Lagrue, B. Presswell
Via molecular and morphological analyses, we describe adult specimens of a new species of Versteria (Cestoda: Taeniidae) infecting mink and river otter (Carnivora: Mustelidae) in Western Canada, as well as larval forms from muskrat and mink. These sequences closely matched those reported from adult specimens from Colorado and Oregon, as well as larval infections in humans and a captive orangutan. We
-
Evaluation of the antiparasitic and antifibrotic effects of gallic acid on experimental hepatic schistosomiasis mansoni J. Helminthol. (IF 1.6) Pub Date : 2024-01-03 S. Sharaf-El-Deen, S. Soliman, R. Brakat
Schistosomiasis afflicts approximately 120 million individuals globally. The hepatic pathology that occurs due to egg-induced granuloma and fibrosis is commonly attributed to this condition. However, there is currently no efficacious treatment available for either of these conditions. Our study aimed to investigate the potential antifibrotic and antiparasitic properties of different doses of gallic
-
Morphological and molecular characterization of plagiorchiid trematodes (Plagiorchis: Plagiorchiidae, Digenea) from bats with redescription of Plagiorchis mordovii Shaldybin, 1958 J. Helminthol. (IF 1.6) Pub Date : 2024-01-03 N.Y. Kirillova, A.A. Kirillov, S.V. Shchenkov, A.E. Knyazev, V.A. Vekhnik
Five Plagiorchis spp. parasitize bats in European Russia: Plagiorchis elegans, Plagiorchis koreanus, Plagiorchis mordovii, Plagiorchis muelleri, and Plagiorchis vespertilionis. Their identification is difficult due to a high morphological similarity. The morphological variability of these species is poorly studied. The taxonomic position of P. mordovii remains debatable. The purpose of our study was
-
Severe decline in abundance of Cyathostoma lari, a parasite of the nasal and orbital sinuses of gulls, at their central European nesting grounds J. Helminthol. (IF 1.6) Pub Date : 2024-01-03 P. Heneberg, J. Sitko, G. Yakovleva, D. Lebedeva
Cyathostoma lari is a parasite of the nasal and orbital sinuses of gulls and other hosts in Europe and Canada. Here, we provide an overview of previously published data on the prevalence and infection intensity of C. lari in gulls. Furthermore, based on our data, we analyze the spatiotemporal trends in the prevalence and intensity of infection by C. lari in Chroicocephalus ridibundus in Czechia (central
-
Comparison of methods to detect interspecific competition among parasites in depauperate communities J. Helminthol. (IF 1.6) Pub Date : 2023-12-27 M.A. Barger
Because conducting experimental coinfections is intractable in most parasite systems, inferences about the presence and strength of interspecific interactions in parasite communities are often made from analyses of field data. It is unclear whether methods used to test for competition are able to detect competition in field-collected datasets. Data from a study of the intestinal helminth communities
-
Oswaldocruzia franciscoensis n. sp. (Nematoda: Molineidae) in Leptodactylus macrosternum Miranda-Ribeiro, 1926 (Anura: Leptodactylidae) from Caatinga morphoclimatic domain, Brazil: morphological and molecular characterisation J. Helminthol. (IF 1.6) Pub Date : 2023-12-27 F.M. Vieira, F.B. Pereira, L.B. Ribeiro, J.B. Oliveira, D.C.N. Silva, L.C. Muniz-Pereira, G. Felix-Nascimento
A new species of Oswaldocruzia Travassos, 1917 (Nematoda, Molineidae), parasite of Leptodactylus macrosternum Miranda-Ribeiro, 1926 (Anura: Leptodactylidae), from Caatinga morphoclimatic domain, Brazil, is described based on morphological and molecular data. Oswaldocruzia franciscoensis n. sp. is characterised by an anterior extremity with a cephalic vesicle divided into two portions, a body covered
-
Morpho-molecular characterisation of two new and two previously reported species of Acanthogyrus (Acanthogyrus: Quadrigyridae) from freshwater fishes in India J. Helminthol. (IF 1.6) Pub Date : 2023-12-22 K. Rana, H. Kaur
Of the total 47 species in the subgenus Acanthosentis, 43 have been reported from the freshwater fishes of Asia. Amin et al. (2017) provided a key to the 23 species of the genus Acanthogyrus reported from the Indian subcontinent. The present study reports two new species: Acanthogyrus bispinosa n. sp. and A. garciai n. sp. from Cirrhinus mrigala Hamilton and Labeo calbasu Hamilton, respectively, and
-
No time to relax: Age-dependent infectivity of cercariae in marine coastal ecosystems J. Helminthol. (IF 1.6) Pub Date : 2023-12-22 Kirill E. Nikolaev, Daniil D. Fedorov, Anna A. Vinogradova, Ivan A. Levakin, Kirill V. Galaktionov
Age dynamics of the ability of cercariae of two digenean species, Himasthla elongata (Himasthlidae) and Renicola parvicaudatus (Renicolidae), to infect the second intermediate host (SIH), mussels (Mytilus edulis), was investigated experimentally. This is the first study of this kind made on cercariae transmitted in the intertidal of the northern seas. The larvae of all tested ages (from 0.5 to 6 hr)
-
EgCF mediates macrophage polarisation by influencing the glycolytic pathway J. Helminthol. (IF 1.6) Pub Date : 2023-12-21 Yeye Feng, Junying Xu, Junxia Lu, Jun Hou, Lianghai Wang, Dan Dong, Xian Wang, Xiaofang Wang, Xiangwei Wu, Xueling Chen
Human cystic echinococcosis (CE) is a zoonotic disorder triggered by the larval stage of Echinococcus granulosus (E. granulosus) and predominantly occurred in the liver and lungs. The M2 macrophage level is considerably elevated among the liver of patients with hepatic CE and performs an integral function in liver fibrosis. However, the mechanism of CE inducing polarisation of macrophage to an M2 phenotype
-
Impact of resveratrol and zinc on biomarkers of oxidative stress induced by Trichinella spiralis infection J. Helminthol. (IF 1.6) Pub Date : 2023-12-15 M.A. Salama, M.A. Alabiad, A.A. Saleh
Trichinellosis is a re-emerging worldwide foodborne zoonosis. Oxidative stress is one of the most common detrimental effects caused by trichinellosis. In addition, Trichinella infection poses an infinite and major challenge to the host’s immune system. Resistance and side effects limit the efficiency of the existing anti-trichinella medication. Given that concern, this work aimed to investigate the
-
Efficacy of levamisole, ivermectin and moxidectin against Capillaria spp. in European hedgehogs (Erinaceus europaeus) J. Helminthol. (IF 1.6) Pub Date : 2023-12-14 Y. Van de Weyer, M.C. Santos, N. Williams, A.M. Gonçalves, W. Hawley, K. McVay, S. Bexton
This randomised study aimed to assess and compare the efficacy of treatment protocols containing levamisole, ivermectin, or moxidectin against Capillaria spp. in naturally infected European hedgehogs (Erinaceus europaeus) presented to a British wildlife rehabilitation centre. Faecal analysis, consisting of wet mount and flotation, was performed for 229 hedgehogs weighing ≥200g. Animals testing positive
-
Scaphanocephalus spp. (Trematoda: Opisthorchiidae) in intermediate and definitive hosts of the Yucatán Peninsula, Mexico, with a re-description of Scaphanocephalus expansus J. Helminthol. (IF 1.6) Pub Date : 2023-12-14 M. T. González-García, M. García-Varela, A. López-Jiménez, M. P. Ortega-Olivares, G. Pérez-Ponce de León, L. Andrade-Gómez
Summary Scaphanocephalus is a small trematode genus belonging to the family Opistorchiidae. The genus currently contains only three species associated with marine fish as intermediate hosts and fish-eating birds as definitive hosts. Here, specimens of Scaphanocephalus were collected from the Osprey, Pandion haliaetus, and the White mullet, Mugil curema in the Yucatán Peninsula, Mexico. We report for
-
Gastrointestinal parasite assemblages from the wild rodent capybara (Hydrochoerus hydrochaeris) inhabiting a natural protected area from Argentina J. Helminthol. (IF 1.6) Pub Date : 2023-12-13 E. Tietze, A. Bellusci, V. Cañal, G. Cringoli, M.O. Beltrame
Knowledge about parasitic diseases of wildlife will help us to understand the dynamics of parasites and their effects on host populations. The capybara (Hydrochoerus hydrochaeris) is the largest living rodent in the world, and its distribution is associated with the presence of tropical and subtropical wetlands in South America. The Los Padres Lake Integral Reserve (LPLIR) is an important conservation
-
Integrative taxonomy of Serrasentis gibsoni n. sp. (Acanthocephala: Isthmosacanthidae) from flatfishes in the Gulf of Mexico J. Helminthol. (IF 1.6) Pub Date : 2023-12-11 A. Martínez-Aquino, J.G. García-Teh, F.S. Ceccarelli, M.L. Aguirre-Macedo, V.M. Vidal-Martínez
The Isthmosacanthidae acanthocephalan species of the genus Serrasentis are parasites of marine teleosts and an elasmobranch. In this study, Serrasentis gibsoni n. sp. is described from the intestines of four flatfish species (Paralichthyidae), namely Ancyclopsetta quadrocellata, Cyclopsetta chittendeni, Syacium gunteri, and S. papillosum from 10 oceanic sites in the Gulf of Mexico (GoM). Twenty sequences
-
Comparative analysis of diagnostic methods and risk factors for Aelurostrongylus abstrusus infection in brazilian cats J. Helminthol. (IF 1.6) Pub Date : 2023-12-11 R. Fagundes-Moreira, E. Silveira, V. Baggio-Souza, S.M.T. Marques, S.B. Vidor, S.M. de Jezus Castro, A. Spanamberg, L.C. Henker, S.P. Pavarini, J.F. Soares, F.V.A. da Costa
This study aimed to prospectively evaluate the risk factors of infection by Aelurostrongylus abstrusus in Brazilian cats with cough and/or radiographic changes, using as diagnostic tools the Baermann method (BM), polymerase chain reaction (PCR) of feces, bronchoalveolar lavage fluid (BALF), and cytology. Forty-three cats that were presented with cough or lung radiographic abnormalities compatible with
-
Auranofin attenuates Schistosoma mansoni egg-induced liver granuloma and fibrosis in mice J. Helminthol. (IF 1.6) Pub Date : 2023-12-06 A.F. Atia, N.M. Abou-Hussien, D.M. Sweed, E. Sweed, N.A. Abo-khalil
Schistosomiasis is a serious tropical disease. Despite extensive research into the etiology of liver fibrosis, effective therapeutic options remain limited. This study aims to assess the effectiveness of auranofin in treating hepatic granuloma and fibrogenesis produced by Schistosoma (S.) mansoni eggs. Auranofin is a gold complex that contains thioglucose tetraacetate and triethylphosphine. Eighty
-
The cestode Stringopotaenia psittacea (Fuhrmann, 1904) (Cestoda: Anoplocephalidae) from a critically endangered New Zealand bird: New evidence from ancient coprolites J. Helminthol. (IF 1.6) Pub Date : 2023-12-06 M. Horrocks, B. Presswell
New Zealand’s kākāpō parrot, once widespread, is now critically endangered due to habitat loss and introduced mammalian predators. Prior to major population decline, a unique kākāpō cestode, Stringopotaenia psittacea, was found in the 1880s and first described in 1904. Here we report the discovery of eggs of this cestode in kākāpō coprolites of pre-human settlement age from the Honeycomb Hill cave
-
Phylogenetic position of the Neotropical Family Zonocotylidae (Paramphistomoidea) using partial 28S rDNA sequences J. Helminthol. (IF 1.6) Pub Date : 2023-12-06 M.M. Montes, F.K. Arrascaeta, J.A. Barneche, D. Balcazar, G.F. Reig Cardarella, S.R. Martorelli
Six families belonging to the Paramphistomoidea superfamily have been reported in South America, with only Zonocotylidae and Balanorchiidae being endemic. The Zonocotylidae was initially classified as Aspidogastrea and then as a paramphistomoid. This family comprises a single genus, Zononocotyle, with two species. It is primarily characterized by having an attachment organ with transverse ridges and
-
Climate change effects on terrestrial parasitic nematodes: Where are the knowledge gaps? J. Helminthol. (IF 1.6) Pub Date : 2023-12-04 T.M. Moerman, S.D. Albon, S.J. Coulson, L.E. Loe
Climate change is expected to affect parasitic nematodes and hence possibly parasite–host dynamics and may have far-reaching consequences for animal health, livestock production, and ecosystem functioning. However, there has been no recent overview of current knowledge to identify how studies could contribute to a better understanding of terrestrial parasitic nematodes under changing climates. Here
-
Synopsis of gastropod-associated nematodes of Ciscaucasia (Russian Federation) with the description of a new species of Pellioditis Dougherty, 1953 (syn. Phasmarhabditis Andrássy, 1976) J. Helminthol. (IF 1.6) Pub Date : 2023-12-01 E.S. Ivanova, S.E. Spiridonov
Caucasus is known as one of the few biodiversity hotspots in Europe and is characterised by rich gastropod fauna while the nematode fauna in association with gastropods has remained largely understudied. Surveys conducted in 2019 and 2021 in the North Caucasus of the Russian Federation (Stavropol Upland and western and central parts of Krasnodar Krai) has revealed the presence of three new species
-
Integrative taxonomy and phylogenetic relationships between representatives of genera within Merliniinae (Nematoda: Merliniidae), with new data on fourteen known and one unknown species J. Helminthol. (IF 1.6) Pub Date : 2023-11-30 M. Hosseinvand, A. Eskandari, K. Azizi, J.E. Palomares-Rius, P. Castillo, J. Abolafia, R. Ghaderi, J. Helder, X. Qing
The application of integrative taxonomic approaches is useful to species delineation based on a combination of distinct types of characters, here morphological features and ribosomal DNA sequences. In this study, we surveyed ectoparasitic nematodes of the subfamily Merliniinae in cultivated and natural environments in Iran. Results of morphological and morphometrical studies, light and scanning electron
-
Comparison of different PCR amplification targets for molecular diagnosis of Strongyloides stercoralis J. Helminthol. (IF 1.6) Pub Date : 2023-11-17 F. Marquet, N. Mora, R.N. Incani, J. Jesus, N. Méndez, R. Mujica, H. Trosel, E. Ferrer
Molecular techniques are an alternative for the diagnosis of strongyloidiasis, produced by Strongyloides stercoralis. However, it is necessary to determine the best amplification target for the populations of this parasite present in a geographical area and standardize a polymerase chain reaction (PCR) protocol for its detection. The objectives of this work were the comparison of different PCR targets
-
Characterization of the complete mitochondrial genome of Acanthogyrus (Acanthosentis) bilaspurensis Chowhan, Gupta & Khera, 1987 (Eoacanthocephala: Quadrigyridae), the smallest mitochondrial genome in Acanthocephala, and its phylogenetic implications J. Helminthol. (IF 1.6) Pub Date : 2023-11-16 Nehaz Muhammad, D.-X. Li, S.-S. Ru, Suleman, D. Saood, M.A. Alvi, L. Li
The phylum Acanthocephala is an important group of parasites with more than 1,300 species parasitizing intestine of all major vertebrate groups. However, our present knowledge of the mitochondrial genomes of Acanthocephala remains very limited. In the present study, we sequenced and annotated the complete mitochondrial genome of Acanthogyrus (Acanthosentis) bilaspurensis (Gyracanthocephala: Quadrigyridae)
-
Acetazolamide loaded-silver nanoparticles: A potential treatment for murine trichinellosis J. Helminthol. (IF 1.6) Pub Date : 2023-11-16 E.F. Abdel Hamed, A.A. Taha, S.M. Abdel Ghany, A.A. Saleh, E.M. Fawzy
Trichinellosis is a global food-borne disease caused by viviparous parasitic nematodes of the genus Trichinella. Due to the lack of effective, safe therapy and the documented adverse effects of traditional therapy, this study aimed to evaluate the therapeutic effect of acetazolamide-loaded silver nanoparticles (AgNPs) on murine trichinellosis. Fifty male Swiss albino mice were divided into five groups
-
Integrative analysis of new Clinostomum metacercariae (Digenea, Clinostomidae) using COI mtDNA and morphology rises the number of lineages found in South American freshwater fishes J. Helminthol. (IF 1.6) Pub Date : 2023-11-10 M.M. Montes, I. García, J.M. Paredes del Puerto, J.A. Barneche, M. Ibañez Shimabukuro, G.F. Reig Cardarella, S.R. Martorelli, G. Pérez Ponce de León
Clinostomidae is a diverse family of digenean parasitizing fish-eating birds as adults and fishes as metacercariae. The species composition, within the genus Clinostomum has been steadily increasing in recent years. In Argentina, four named species of Clinostomum have been documented, accompanied by four metacercariae representing distinct genetic lineages whose adults have not been identified. This
-
Putting infection on the map: Using heatmaps to characterise within- and between-host distributions of trematode metacercariae J. Helminthol. (IF 1.6) Pub Date : 2023-11-10 Dana M. Calhoun, Jamie Curtis, Clara Hassan, Pieter T. J. Johnson
The location of parasites within individual hosts is often treated as a static trait, yet many parasite species can occur in multiple locations or organs within their hosts. Here, we apply distributional heat maps to study the within- and between-host infection patterns for four trematodes (Alaria marcianae, Cephalogonimus americanus, Echinostoma spp. and Ribeiroia ondatrae) within the amphibian hosts
-
Description of Aphelenchoides persicus sp. n. (Nematoda: Aphelenchoididae) from Iran J. Helminthol. (IF 1.6) Pub Date : 2023-11-07 F. Aliramaji, A. Taheri, E. Shokoohi
During a survey on the soil nematodes, a population of the genus Aphelenchoides was collected around the rhizosphere of persimmon in Guilan Province, Iran. The morphological and molecular characters confirmed the new species, namely A. persicus sp. n. The new species is characterized by a female body length (699–1068 μm), lip region offset from the rest of the body by a slight constriction, lateral
-
Morphological and molecular characterization of Encotyllabe vallei Monticelli, 1907 (Monopisthocotylea, Monogenea) from the gilthead seabream Sparus aurata Linnaeus (Teleostei, Sparidae) from the southwestern Mediterranean and notes on host specificity of the genus Encotyllabe Diesing, 1850 J. Helminthol. (IF 1.6) Pub Date : 2023-11-07 Fatima-Zohra Zedam, Chahinez Bouguerche, Mohammed Ahmed, Fadila Tazerouti
Incomplete original descriptions, the unavailability or poor conditions of specimens and the lack of detailed redescriptions have caused the validity of several species of the genus Encotyllabe Diesing, 1850 to be questioned. To date, seven of the recognized species were described upon one or two specimens, hindering study of intraspecific variations. This was made worse by considering few morphoanatomical
-
A new needle nematode, Longidorus zanjanensis sp. nov. (Nematoda: Longidoridae) from north-western Iran J. Helminthol. (IF 1.6) Pub Date : 2023-11-07 M. Asgari, A. Eskandari, P. Castillo, J.E. Palomares-Rius
During a survey of soil nematodes in 2022, a new species of the genus Longidorus, described here as Longidorus zanjanensis sp. nov., was discovered in the rhizosphere of Astragalus sp. in Zanjan Province, Iran. The new needle nematode is described and illustrated based on morphological, morphometric, and molecular traits. Further, its females are characterized by having a long body ranging 5.6–7.7
-
The elucidation of the life cycle of Saccocoelioides nanii Szidat, 1954 (Digenea: Haploporidae) using molecular techniques J. Helminthol. (IF 1.6) Pub Date : 2023-11-03 L.E. Martinez, C. Gilardoni, C. Medina, F. Cremonte, J.A. Etchegoin
In South America, the knowledge of trematode diversity parasitizing freshwater fishes is still scarce, as less than 5% of the freshwater fish fauna has been examined for parasites. A similar situation applies to studies on digenean life cycles, which have become increasingly rare. Among the digenean families parasitizing freshwater fishes in the region, Haploporidae is considered the richest in species
-
A review of the nematode assemblage of the Australian bandicoot, Isoodon macrourus (Peramelidae), from material held in the South Australian Museum with the description of Sprattellus cassonei n. sp. (Mackerrastrongylidae) J. Helminthol. (IF 1.6) Pub Date : 2023-10-19 L.R. Smales, J.A.L. Wood, L.A. Chisholm
A total of 235 vials of nematodes held in the Australian Helminthological Collection of the South Australian Museum from 125 individuals of Isoodon macrourus were examined. The nematode assemblage of I. macrourus, comprising 12 families, including 16 genera and 23 identified species, was compared with the sympatric bandicoot species Perameles nasuta, 20 identified species (Sorensen’s index of similarity
-
Canine parasitoses in north Patagonia (Argentina): comparison between different social and environmental factors J. Helminthol. (IF 1.6) Pub Date : 2023-10-19 Luciano Ritossa, Gustavo Viozzi, Lorena Lazzarini, Nora Pierangeli, Verónica Flores
In many countries, urban areas are commonly contaminated with canine feces that spread parasites, a situation related to the natural and social environment. Dogs having free access to public areas therefore constitutes a health risk. Because in Patagonia there are no records of city comparisons that consider the number of free-roaming dogs and the local environmental and socioeconomic characteristics
-
Natural occurrence of entomopathogenic nematodes (Steinernema and Heterorhabditis) and Pristionchus nematodes in black truffle soils from Spain J. Helminthol. (IF 1.6) Pub Date : 2023-10-19 Ivan Julià, Ana Morton, Fernando Garcia-del-Pino
The European truffle beetle Leiodes cinnamomeus is the most important pest in black truffle (Tuber melanosporum) plantations. Current control methods against it are inefficient, so entomopathogenic nematodes (EPNs) could play an important role in their population regulation due to their efficacy against many soil-dwelling insect pests. A survey of EPNs and Pristionchus nematodes was conducted in truffle
-
Molecular and morphological screening of Podocotyle spp. (Trematoda: Opecoelidae) sheds light on their diversity in Northwest Pacific and eastern European Arctic J. Helminthol. (IF 1.6) Pub Date : 2023-10-19 S. Sokolov, S. Shchenkov, E. Frolov, S. Denisova, I. Gordeev
Podocotyle is a genus of marine opecoelid digeneans that parasitize a wide variety of fish as adults. We present the first phylogenetic analysis of several Podocotyle isolates using nuclear 28S rDNA and mitochondrial cox1 DNA regions. New sequences were obtained for Podocotyle specimens from fish caught in the Sea of Okhotsk and the White Sea. Based on morphological and molecular data, eight Podocotyle
-
Bacteria associated with ovine gut parasites Trichuris ovis and Haemonchus contortus J. Helminthol. (IF 1.6) Pub Date : 2023-10-17 A. H. Bhat, H. Tak, B. A. Ganai, I. M. Malik, T. A. Bhat
An associated microbiome of any host helps it in different metabolic processes ranging from the decomposition of food to the maturation of gametes. Organisms with a parasitic mode of life, though present at nutritious sites inside their host, maintain their own microbiome. Nevertheless, the comprehensive characterization and functionality of microbiome in parasitic organisms remain understudied. We
-
Host response of Nicotiana benthamiana to the parasitism of five populations of root-lesion nematode, Pratylenchus coffeae, from China J. Helminthol. (IF 1.6) Pub Date : 2023-09-29 M. Sun, W. Niu, L. Shi, Y. Lv, B. Fu, Y. Xia, H. Li, K. Wang, Y. Li
In a recent survey of nematodes associated with tobacco in Shandong, China, the root-lesion nematode Pratylenchus coffeae was identified using a combination of morphology and molecular techniques. This nematode species is a serious parasite that damages a variety of plant species. The model plant benthi, Nicotiana benthamiana, is frequently used to study plant-disease interactions. However, it is not
-
Steinernema shori n. sp., a new entomopathogenic nematode (Nematoda: Steinernematidae) from India J. Helminthol. (IF 1.6) Pub Date : 2023-09-08 S. Soni, J. Patil, V. Linga, P.H. Mhatre, M.T. Gowda, J. Ganguli, V. Půža
In this study, morphological and molecular features were used to identify a new Steinernema sp. from Chhattisgarh, India. Morphological and molecular features provide evidence for placing the new species into the “bicornutum” clade. The new species is characterized by the following morphological features: infective juveniles with a body length of 587 (494–671) μm; a distance from the anterior end to
-
Neoskrjabinolepis paradoxa n. sp. from shrews on Sakhalin Island, Russia, with an amended diagnosis of Neoskrjabinolepis Spassky, 1947 (Cestoda: Cyclophyllidea: Hymenolepididae), a key, and a review on geographical distribution of the species J. Helminthol. (IF 1.6) Pub Date : 2023-09-08 S. A. Kornienko, T. A. Makarikova, N. E. Dokuchaev
A taxonomic review was performed on cestodes of the genus Neoskrjabinolepis Spassky, 1947 that parasitize different species of Sorex shrews in different regions of the northern Palearctic and in the Nearctic (Alaska, USA). Information on Palearctic Neoskrjabinolepis cestodes published in various articles is summarized. An overview of the geographical distribution of the Neoskrjabinolepis species is
-
First report of molecular confirmation and phylogenetic analysis of ocular seteriasis in buffalo in India using 12S rRNA J. Helminthol. (IF 1.6) Pub Date : 2023-09-04 S. Anandu, S. N. Chaithra, K. M. Manjusha, V. K. Tiwari, A. K. Tewari, G. N. Tanuj, S. Samanta, M. Sankar
An adult Indian buffalo (Bubalus bubalis) presented with corneal opacity, irritation, and excessive lacrimation from the left eye in the Referral Veterinary Polyclinic-Teaching Veterinary Clinical Complex (RVC-TVCC), Indian Veterinary Research Institute, Izatnagar. Clinical examination revealed a whitish thread-like worm in the left eye’s anterior chamber. The worm was surgically removed from the eye