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2.
J Parasitol ; 107(4): 593-599, 2021 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-34324665

RESUMO

Several mortality events involving barn swallows (Hirundo rustica) and cliff swallows (Petrochelidon pyrrhonota) were reported in the Upper Midwestern states in 2017 and 2018. Barn swallow mortality followed unseasonal cold snaps, with the primary cause of death being emaciation with concurrent air sac nematodiasis. Lesions in cliff swallows were consistent with blunt force trauma from suspected car impacts. Examination of air sac nematodes from both bird species revealed morphological characters consistent with Diplotriaena obtusa. Sequence analysis of the partial 18S rRNA gene indicated the samples clustered with other species in the genus Diplotriaena. These nematodes provide a link between morphological specimens and DNA sequence data for D. obtusa.


Assuntos
Doenças das Aves/parasitologia , Infecções por Spirurida/veterinária , Spirurina/isolamento & purificação , Andorinhas/parasitologia , Cavidade Abdominal/parasitologia , Sacos Aéreos/parasitologia , Animais , Doenças das Aves/epidemiologia , Doenças das Aves/mortalidade , Doenças das Aves/patologia , Temperatura Baixa , Meio-Oeste dos Estados Unidos/epidemiologia , Filogenia , RNA Ribossômico 18S/genética , Infecções por Spirurida/epidemiologia , Infecções por Spirurida/parasitologia , Infecções por Spirurida/patologia , Spirurina/classificação , Spirurina/genética , Ferimentos não Penetrantes/mortalidade , Ferimentos não Penetrantes/veterinária
3.
Syst Parasitol ; 98(2): 167-175, 2021 04.
Artigo em Inglês | MEDLINE | ID: mdl-33686566

RESUMO

A new nematode species, Philometra longa n. sp. (Philometridae), is described from male and female specimens collected from the body cavity of the marine fish, Hyporhamphus australis (Steindachner) (Hemirhamphidae, Beloniformes) from off the south-eastern coast of Australia. Based on examination by light and scanning electron microscopy, the new species differs from those parasitising other beloniform hosts mainly in the body length (4.69 mm), the length of spicules (141 µm) and the structure of the caudal end and the distal tip of gubernaculum in the male, and in the conspicuously long body (455-560 mm) of the gravid female. Philometra longa n. sp. is the first species of philometrids described from fishes of the family Hemiramphidae. It is the 26th nominal species of philometrids and the 19th species of Philometra so far recorded from Australian marine and brackish waters. Re-examined museum specimens of Philometra sp. from Hyporhamphus melanochir (Valenciennes) off Tasmania, as well as those previously reported from the same host species off the Australian coast, were found to be identical with P. longa sp. n.


Assuntos
Cavidade Abdominal/parasitologia , Beloniformes/parasitologia , Dracunculoidea/classificação , Animais , Austrália , Dracunculoidea/ultraestrutura , Águas Salinas , Água do Mar , Especificidade da Espécie
4.
Parasitol Int ; 80: 102211, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-33164870

RESUMO

Dioctophymosis is the disease caused by the nematode Dioctophyme renale, normally found parasitizing the right kidney of dogs. The absence of symptoms is frequent in parasitized animals. The surgical procedures are commonly performed to treat this disease. This work describes a case involving a canine with renal and ectopic parasitosis in the abdominal and thoracic regions. A mixed-breed female dog, approximately four months old, was diagnosed by ultrasound as for the presence of D. renale in the right kidney and abdominal and thoracic cavities. The animal underwent exploratory celiotomy, nephrectomy of the parasitized kidney, and transdiaphragmatic thoracotomy to remove the thoracic parasite, with a single abdominal surgical wound and excellent postoperative recovery. Several reports of ectopic parasitosis are found, however, the thoracic finding is unusual, and curative therapeutic transdiaphragmatic thoracotomy for dioctophymosis in dogs has not been previously described.


Assuntos
Cavidade Abdominal/parasitologia , Dioctophymatoidea/isolamento & purificação , Doenças do Cão/diagnóstico , Infecções por Enoplida/veterinária , Cavidade Torácica/parasitologia , Animais , Doenças do Cão/parasitologia , Cães , Infecções por Enoplida/diagnóstico , Infecções por Enoplida/parasitologia , Feminino , Rim/parasitologia , Ultrassonografia/veterinária
5.
J Parasitol ; 106(1): 25-29, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31971483

RESUMO

The prevalence and intensity of the trematode, Otodistomum hydrolagi, were determined for the first time in Spotted Ratfish, Hydrolagus colliei. Spotted Ratfish specimens were collected during bottom-trawl surveys in Queen Charlotte Sound (QCS, n = 31) and off the west coast of Vancouver Island (WCVI, n = 242). In all instances, the flukes were found within the abdominal cavity. Most flukes were mature (intrauterine eggs were present) and ranged in length from 9.1 to 61.5 mm, with a mean ± SD length of 28.5 ± 12.1 mm (n = 52). Fluke length was positively correlated with Spotted Ratfish precaudal length (PCL), and no Spotted Ratfish smaller than 247-mm PCL was infected by O. hydrolagi. The overall prevalence (95% confidence interval [CI]) and mean intensity (95% CI) of O. hydrolagi were 27.8% (22.6-33.6) and 1.24 (1.09-1.43), respectively. Neither prevalence nor mean intensity differed between host location or host sex. The majority (86%) of infected hosts harbored a single fluke (range 1-5), but 4 Spotted Ratfish were infected with 3 or more flukes, which accounted for 16% of all observed O. hydrolagi. The fluke population exhibited an aggregated distribution with 80% of individuals found in 21% of the hosts, but among infected hosts there was low variability in the intensity of infection. This is the first ecological study of O. hydrolagi from its Spotted Ratfish host, and the first record of this trematode in Canadian waters, which extends the range of O. hydrolagi to include Canadian coastal Pacific waters.


Assuntos
Doenças dos Peixes/epidemiologia , Doenças dos Peixes/parasitologia , Trematódeos/crescimento & desenvolvimento , Infecções por Trematódeos/veterinária , Cavidade Abdominal/parasitologia , Animais , Colúmbia Britânica/epidemiologia , Feminino , Peixes , Masculino , Oceano Pacífico , Prevalência , Infecções por Trematódeos/epidemiologia , Infecções por Trematódeos/parasitologia
6.
Khirurgiia (Mosk) ; (8): 79-84, 2019.
Artigo em Russo | MEDLINE | ID: mdl-31464280

RESUMO

Clinical symptoms and localization of echinococcosis are various. Clinical observation of successful surgical treatment of secondary multiple abdominal lesion with echinococcosis is presented in the article. Certain features of diagnosis and surgical treatment are described.


Assuntos
Cavidade Abdominal/parasitologia , Cavidade Abdominal/cirurgia , Equinococose/diagnóstico , Equinococose/cirurgia , Equinococose/complicações , Humanos
7.
Syst Parasitol ; 96(2): 257-264, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-30747402

RESUMO

Although little studied, infections with nematodes of the Onchocercidae Leiper, 1911, predominated by the genera Dipetalonema Diesing, 1861 and Mansonella Faust, 1929, are frequent in wild primates and human populations in the Neotropical forest areas. This study reports natural infections with Dipetalonema freitasi Bain, Diagne & Muller, 1987 and D. gracile (Rudolphi, 1809) in two free-living species of pitheciid primates, extending the known geographical distribution of these species to the forest of the Peruvian Amazon. Adult worms were recovered from the thoracic and abdominal cavities of two species of monkeys, Pithecia monachus monachus (É. Geoffroy Saint-Hilaire) and Cacajao calvus ucayalii (Thomas) (Primates: Pitheciidae), collected along the Yavari-Mirin River basin and analysed via light and scanning electron microscopy. Both host species represent new host records for D. freitasi and D. gracile. Morphometric data are also presented for the sampled filarial worms in addition to morphological details obtained through light and electron microscopy examination of D. freitasi specimens.


Assuntos
Nematoides/classificação , Nematoides/fisiologia , Pitheciidae/parasitologia , Cavidade Abdominal/parasitologia , Animais , Microscopia Eletrônica de Varredura , Nematoides/ultraestrutura , Especificidade da Espécie , Cavidade Torácica/parasitologia
8.
J Helminthol ; 93(3): 375-378, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-29606157

RESUMO

Dipetalonema caudispina (Molin, 1858) and D. gracile (Rudolphi, 1809) (Filarioidea: Onchocercidae) are two of six known species of filarial nematodes that parasitize Neotropical non-human primates. Adult filariae were collected from the thoracic and abdominal cavities of 38 of 44 specimens of Sapajus macrocephalus (Spix, 1823) and nine of ten specimens of Cebus albifrons (Humboldt, 1812) (Primates: Cebidae), distributed in the Yavarí-Mirín river basin and used locally for human consumption. Co-occurrence of D. caudispina and D. gracile is reported for the first time, with a prevalence of 18.5% (10 of 54 hosts examined). Our finding of D. caudispina and D. gracile in cebids from the Peruvian Amazon constitutes a new geographical record for both filariae, two new host records for D. caudispina, and the first report of D. gracile in S. macrocephalus. In addition, we provide morphometric data for D. caudispina, complementing the original description, as well as scanning electron microscopy details on the structure of the area rugosa and number of caudal papillae in males.


Assuntos
Cebinae/parasitologia , Coinfecção/veterinária , Infecções por Dipetalonema/veterinária , Dipetalonema/classificação , Dipetalonema/isolamento & purificação , Doenças dos Macacos/parasitologia , Cavidade Abdominal/parasitologia , Animais , Biometria , Coinfecção/epidemiologia , Coinfecção/parasitologia , Dipetalonema/anatomia & histologia , Infecções por Dipetalonema/epidemiologia , Infecções por Dipetalonema/parasitologia , Microscopia Eletrônica de Varredura , Doenças dos Macacos/epidemiologia , Peru/epidemiologia , Prevalência , Cavidade Torácica/parasitologia , Topografia Médica
9.
Syst Parasitol ; 95(7): 665-671, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-29968054

RESUMO

The nematode Philometra pellucida (Jägerskiöld, 1893) (Philometridae) is redescribed from female specimens obtained from the abdominal cavity of the marine tetraodontiform fish (blackspotted puffer) Arothron nigropunctatus (Bloch & Schneider) (Tetraodontidae) off Lizard Island, Australia and off Okinawa, Japan. This is just the second record of this parasite since its description 125 years ago. Light and scanning electron microscopical examination of these nematodes revealed some taxonomically important, previously unreported morphological features, such as the number and arrangement of cephalic papillae, presence of the oesophageal cell nucleus and the size of first-stage larvae in the uterus. This new report of P. pellucida infecting A. nigropunctatus off Australia and Japan represents new host and geographical records. A key to the species of Philometra Costa, 1845 parasitising tetraodontiform fishes is provided.


Assuntos
Cavidade Abdominal/parasitologia , Dracunculoidea/classificação , Tetraodontiformes/parasitologia , Animais , Austrália , Dracunculoidea/anatomia & histologia , Dracunculoidea/ultraestrutura , Japão , Especificidade da Espécie
10.
An Acad Bras Cienc ; 90(2): 1605-1610, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29768571

RESUMO

From September 2014 to November 2015, 30 Paralichthys orbignyanus specimens were obtained from Sepetiba Bay in the municipality of Rio de Janeiro, State of Rio de Janeiro, Brazil. The fishes were necropsied and cestode larvae were recovered from the abdominal cavity, mesentery, and serosas of the stomach, intestine, spleen, liver, kidney and gonads. Nineteen fish were parasitized by a total of 90 trypanorhynch plerocerci. Based on morphological characters, these were identified as Pterobothrium crassicolle. The parasitism indices for P. crassicolle on P. orbignyanus, were 63.3% for prevalence, 4.7 for mean intensity, 3 for mean abundance and 1 to 18 for range of infection. These parasites were studied due to their importance during fish sanitary inspection, if one considers the harm that the repulsive aspect of infected fish may cause to consumers. This is the first record of P. crassicolle plerocerci parasitizing P. orbignyanus.


Assuntos
Cestoides/isolamento & purificação , Infecções por Cestoides/veterinária , Doenças dos Peixes/epidemiologia , Linguado/parasitologia , Cavidade Abdominal/parasitologia , Animais , Brasil/epidemiologia , Infecções por Cestoides/epidemiologia , Infecções por Cestoides/parasitologia , Doenças dos Peixes/parasitologia , Larva , Carga Parasitária , Prevalência
11.
Arq. bras. med. vet. zootec. (Online) ; 69(3): 618-622, jun. 2017. ilus
Artigo em Português | LILACS, VETINDEX | ID: biblio-846903

RESUMO

Dioctophyme renale é um parasito que afeta tanto animais como humanos e tem como órgão de eleição o rim direito. Relata-se o caso clínico-cirúrgico de um paciente canino com histórico de eliminação de três exemplares de D. renale pela urina e presença de parasitos no rim esquerdo e na cavidade abdominal. No Hospital de Clínicas Veterinárias da Universidade Federal de Pelotas, foram realizados exames pré-cirúrgicos, entre eles a ultrassonografia abdominal, que identificou a localização dos nematódeos, e o exame de Doppler pulsado dos vasos intrarrenais, que demonstrou aumento nos índices resistivos nas regiões avaliadas. O paciente foi conduzido para a realização de laparotomia exploratória, sendo removidos 23 parasitos da cavidade abdominal. A presença de D. renale causa graves lesões nos rins e nos demais órgãos da cavidade abdominal, sendo essencial o diagnóstico precoce e a remoção dos nematódeos para recuperação do paciente.(AU)


Dioctophyme renale is a parasite that attacks animals as well as humans and has the right kidney as a preferred target organ. This document reports the case of a clinical-chirurgical canine patient with a history of elimination of three D. renale samples through its urine and presence of parasites at its left kidney and abdominal cavity. Pre-cirurgical exams were performed at the Veterinary Hospital of the Federal University of Pelotas. Among these exams, abdominal ultrasonography identified the nematode's location and the Pulse-Doppler of the intrarenal vessels showed an increase in the resistive indices of the evaluated areas. An Exploratory Laparotomy was conducted with the patient who had 23 parasites removed from its abdominal cavity. The presence of D. renale causes severe lesions at kidneys and other organs of the abdominal cavity, for this reason early diagnosis and nematode´s removal are essential for the patient's recovery.(AU)


Assuntos
Animais , Cães , Cavidade Abdominal/parasitologia , Dioctophymatoidea , Rim/parasitologia , Urina/parasitologia , Laparotomia/veterinária , Ultrassonografia Doppler de Pulso/veterinária
12.
Vet Parasitol ; 230: 9-13, 2016 Oct 30.
Artigo em Inglês | MEDLINE | ID: mdl-27884445

RESUMO

Taenia hydatigena is a non-zoonotic cestode that has canines as definitive hosts and ruminants and pigs as intermediate hosts. In pigs, its presence causes cross-reactivity in serological testing for Taenia solium cysticercosis. Therefore, knowledge on the occurrence of T. hydatigena is paramount for validly estimating the seroprevalence of T. solium cysticercosis in pigs. In a cross-sectional abattoir study, we estimated the prevalence of T. hydatigena in pigs slaughtered in Koudougou, Burkina Faso. Carcasses of 452 pigs were examined by investigators for perceived and suspected T. hydatigena cysticercus lesions in the abdominal cavity or on the surface of abdominal organs. Routine meat inspection was performed by local inspectors to identify T. solium cysticerci. All lesions were subjected to PCR-RFLP analysis in order to differentiate Taenia spp. Additionally, individual blood samples were examined for the presence of circulating cysticercus antigens using the B158/B60 Ag-ELISA. Perceived T. hydatigena cysticerci were found in 13 pigs, whereas meat inspectors found seven carcasses infected with T. solium cysticerci. All were confirmed by molecular analysis. Of pigs with other suspected lesions, mostly located in the liver, 27 and six were found to harbour T. hydatigena and T. solium cysticerci, respectively. Overall, 8.8% of pigs (40/452) were found infected with T. hydatigena and 2.9% (13/452) with T. solium. Of these positive pigs, one was found infected with both Taenia spp. (0.2%, 1/452). Blood samples of 48.5% of pigs (219/452) were positive in the Ag-ELISA. Pigs with confirmed cysts of T. hydatigena and T. solium had a positive Ag-ELISA result in 57.5% (23/40) and 61.5% (8/13) of cases, respectively. The observed T. hydatigena prevalence in this study is relatively high in comparison to other studies in Africa. Estimates of the occurrence of active porcine T. solium infection using the B158/B60 Ag-ELISA should therefore be adjusted for the presence of T. hydatigena. The low level of T. solium infection detected upon meat inspection in this study is likely an underestimation of the true prevalence since routine meat inspection shows poor sensitivity and pigs perceived to be infected based on tongue palpation are rarely sent to official abattoirs.


Assuntos
Doenças dos Suínos/epidemiologia , Doenças dos Suínos/parasitologia , Taenia/fisiologia , Teníase/veterinária , Matadouros , Cavidade Abdominal/parasitologia , Animais , Anticorpos Anti-Helmínticos/sangue , Burkina Faso/epidemiologia , Estudos Transversais , Ensaio de Imunoadsorção Enzimática , Interações Hospedeiro-Parasita , Carne/parasitologia , Reação em Cadeia da Polimerase , Polimorfismo de Fragmento de Restrição , Prevalência , Suínos , Doenças dos Suínos/diagnóstico , Taenia/genética , Teníase/diagnóstico , Teníase/epidemiologia , Teníase/parasitologia
13.
Reprod Biol Endocrinol ; 14(1): 64, 2016 Oct 06.
Artigo em Inglês | MEDLINE | ID: mdl-27716434

RESUMO

BACKGROUND: Iatrogenic parasitic myomas (PMs), caused by intra-corporeal power morcellation during laparoscopy is gradually increasing. However, the pathogenesis and medical treatment of PMs remain largely unelucidated. METHODS: Laparoscopically-induced PM xenografted mouse model was conducted by xenografting human uterine myoma fragments into the abdominal cavity of SCID mice and hormonal manipulation was performed using this mouse model to demonstrate the role of oestrogen in the development of implanted PMs. Immunohistochemistry of oestrogen receptor α (ERα), progesterone receptor (PR), vimentin, vascular endothelial growth factor (VEGF), microvessel density (MVD) and Ki-67 index was performed and compared. RESULTS: In the patient with PMs, ERα, PR, angiogenesis and proliferative property expression were upregulated in PM lesions compared to uterine myomas. In the laparoscopically-induced PM mouse model, implanted myomas had more steroid receptor expressions, angiogenesis and proliferative property compared with pre-xenografted or non-implanted myoma. Depletion of oestrogen in the ovariectomized (OVX) mice decreased laparoscopically-induced PM implantations. In comparison, the implantations of PMs were increased with additional E2 supplement. Hormonal manipulation in the PM mouse model, including AI, GnRHa and SERM groups, were compared and AI significantly decreased the implantations, steroid receptor, angiogenesis, cell density, and proliferative index of PMs compared with control group. Furthermore, GnRHa significantly decreased VEGF and MVD expressions compared with control group. CONCLUSIONS: These data highlight the crucial role of oestrogen in the development of laparoscopically-induced PMs and suggest that hormone manipulation may be a potential therapeutic agent. TRIAL REGISTRATION: This protocol was approved by the Human and Animal Institutional Review Board of Taipei Veterans General Hospital ( VGHIRB No 2014-10-002C on Nov. 17th, 2014; IACUC 2014-119 on Aug. 22nd, 2014).


Assuntos
Estrogênios/farmacologia , Laparoscopia/efeitos adversos , Leiomioma/diagnóstico , Morcelação/efeitos adversos , Neovascularização Fisiológica/efeitos dos fármacos , Doenças Parasitárias/diagnóstico , Neoplasias Uterinas/diagnóstico , Cavidade Abdominal/parasitologia , Adulto , Animais , Feminino , Humanos , Leiomioma/etiologia , Leiomioma/cirurgia , Camundongos , Camundongos SCID , Mioma/diagnóstico , Mioma/etiologia , Mioma/cirurgia , Neovascularização Fisiológica/fisiologia , Doenças Parasitárias/etiologia , Doenças Parasitárias/cirurgia , Transplante Heterólogo/métodos , Neoplasias Uterinas/etiologia , Neoplasias Uterinas/cirurgia
14.
Parasit Vectors ; 9(1): 562, 2016 10 25.
Artigo em Inglês | MEDLINE | ID: mdl-27782848

RESUMO

BACKGROUND: Myxozoa is a well-known economically and ecologically important group of metazoan parasites, phylogenetically related to Cnidaria. High diversity of myxosporeans has been recorded in Russia and China; however, most of the species were solely morphologically characterised. Here, we identified a new gibel carp-infecting Myxobolus species and morphologically and molecularly compared the Russian and Chinese isolates of this new myxosporean. RESULTS: Myxobolus pronini n. sp. was found free in the abdominal cavity of Carassius auratus gibelio (Bloch, 1782) in Lake Baikal watershed, Russia, and embedded in the visceral serous membranes of the same fish species in Lake Taibai, Hubei province, China. The morphometric data of the plasmodia and mature spores exhibited some differences between the Russian and Chinese isolates, but SSU rDNA sequences indicated that these two geographical isolates are conspecific. The mature spores from the two locations are obovate in frontal view, with wider anterior than posterior end and lemon-shaped in sutural view. Spores of the Russian isolate were 14.3-16.2 (mean 15.1 ± 0.2) µm long, 9.6-10.8 (10.1 ± 0.1) µm wide and 6.4-7.4 (6.7 ± 0.15) µm thick; those of the Chinese isolate were 13.8-15.6 (14.7 ± 0.24) µm long, 9.6-13.3 (9.6 ± 0.65) µm wide and 6.2-7.2 (6.6 ± 0.16) µm thick. The newly-generated rDNA sequences (including SSU rDNA, ITS and LSU rDNA) from the two isolates represented some variations within the intraspecific range. Homology search by BLAST showed that the newly obtained rDNA sequences do not match any sequences available on GenBank. Phylogenetic analysis based on the aligned partial SSU rDNA sequences indicated that this novel species clustered with several gibel carp-infecting Myxobolus spp. with round anterior end of spores. Additionally, phylogenetic analysis based on all obtained ITS sequences showed that distinct genetic geographical differentiation occurred for this new parasite. CONCLUSIONS: Myxobolus pronini n. sp. is described by integrating morphological, ecological and molecular evidence. Two geographical isolates of this species showed some morphological and genetic differences but within the intraspecific range of variation.


Assuntos
Doenças dos Peixes/parasitologia , Carpa Dourada/parasitologia , Myxobolus/isolamento & purificação , Doenças Parasitárias em Animais/parasitologia , Cavidade Abdominal/parasitologia , Animais , China , Análise por Conglomerados , DNA Ribossômico/química , DNA Ribossômico/genética , DNA Espaçador Ribossômico/química , DNA Espaçador Ribossômico/genética , Myxobolus/anatomia & histologia , Myxobolus/classificação , Myxobolus/genética , Filogenia , RNA Ribossômico/genética , RNA Ribossômico 18S/genética , Federação Russa , Análise de Sequência de DNA , Membrana Serosa/parasitologia
15.
Parasitol Res ; 112(5): 1865-75, 2013 May.
Artigo em Inglês | MEDLINE | ID: mdl-23456020

RESUMO

The present study investigates the damages of high intensity focused ultrasound (HIFU) to transplanted hydatid cysts in abdominal cavities of rabbits with aids of ultrasound contrast agent (UCA) and superabsorbent polymer (SAP) alone or in combination. A rabbit model with transplanted hydatid cyst was established by implanting hydatid cyst isolated from infected sheep liver, and HIFU was used to ablate the transplanted cysts with the aid of UCA and SAP alone or in combination. The hydatid cyst with thin wall, good elasticity, approximately spherical, and a diameter of approximately 30 mm was selected for the following experiments. According to our previous studies, a mixture of 0.1 g SAP and 0.5 ml anhydrous ethanol, and the solution of 0.1 ml UCA SonoVue, or both materials were injected into different cyst before HIFU ablation, respectively. The cyst inoculated with the SAP and UCA alone or in combination was immediately implanted into the abdominal cavity of rabbit for HIFU ablation at a dosage of 100 W acoustic powers. The ablation mode was spot scanning at the speed of 3 mm/s. Every target point was scanned three times; every ablating time lasted 3 s. The distance of each ablated layer was 5 mm. The total ablation time depended on the volume of cyst. The comparison of ultrasound image for each layer of hydatid cyst was made before and after HIFU ablation. The protoscolices in ablated cysts were stained by trypan blue exclusion assay, and their structures were observed by light microscopy. To estimate ablation effects of HIFU to the walls of hydatid cysts, the ultrastructure changes of cyst walls were examined by electron microscopy. The pathological changes of rabbits' skins through which ultrasound penetrated were observed to investigate the side effects of HIFU ablation. The results demonstrated that HIFU had some lethal effects to hydatid cysts in vivo, namely, echo enhancements of ultrasound images of cysts, increases in mortality rate of protoscolices from 15.19 % (HIFU alone) to 48.66 % (HIFU + SAP), 38.67 % (HIFU + UCA), and 67.75 % (HIFU + SAP + UCA), respectively, serious structural damages of protoscolices, and destructions or even disappearance of laminated layers and germinal layers in the walls of hydatid cysts ablated by HIFU aided with UCA and SAP alone or in combination. This study demonstrated that destructive effects of HIFU to transplanted hydatid cyst could be enhanced by UCA and SAP alone, but the destruction of HIFU aided with a combination of UCA and SAP to hydatid cysts was more effective than those aided with UCA or SAP alone. The enhanced thermal and cavitation effects of HIFU induced by UCA and SAP might be involved in the enhanced destructive effects of HIFU on hydatid cysts. There were no evidences of pathological changes on rabbits' skins overlying the hydatid cysts after HIFU ablation. The results suggested that the rabbit model with transplanted hydatid cyst may serve as an optional animal model for the experiments of HIFU ablation to hydatid cyst in vivo, and the materials of UCA and SAP were proved as enhancing agents of HIFU ablation to hydatid cysts, and HIFU at a dosage of 100 W acoustic powers was a safe and feasible parameter to ablate the hydatid cysts in this special animal model. These results laid a theoretical foundation for improving HIFU therapy for cystic echinococcosis by inoculation of UCA and SAP into hydatid cysts.


Assuntos
Cavidade Abdominal/diagnóstico por imagem , Anti-Helmínticos/farmacologia , Meios de Contraste/farmacologia , Equinococose/diagnóstico por imagem , Echinococcus granulosus/efeitos dos fármacos , Ablação por Ultrassom Focalizado de Alta Intensidade/efeitos adversos , Polímeros/farmacologia , Cavidade Abdominal/parasitologia , Cavidade Abdominal/patologia , Animais , Anti-Helmínticos/administração & dosagem , Meios de Contraste/administração & dosagem , Modelos Animais de Doenças , Equinococose/patologia , Echinococcus granulosus/ultraestrutura , Ablação por Ultrassom Focalizado de Alta Intensidade/estatística & dados numéricos , Humanos , Polímeros/administração & dosagem , Coelhos , Resultado do Tratamento , Ultrassonografia
16.
J Parasitol ; 99(3): 496-500, 2013 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23327466

RESUMO

Gravid females of the little-known nematode species Philometra rubra ( Leidy, 1856 ) (Philometridae) are described from specimens from the abdominal cavity of the striped bass, Morone saxatilis (Walbaum), in South Carolina and Canada. The specimens were studied with the use of light and scanning electron microscopy. This species is mainly characterized by the distribution and different sizes of cephalic papillae from the external circle, which is a unique feature compared to other philometrids. Other characteristic features are the shape of the posterior end of body, size and location of caudal projections, and the presence of a well-developed anterior esophageal inflation. The morphology of the male of P. rubra and the life cycle of this nematode are still unknown.


Assuntos
Cavidade Abdominal/parasitologia , Bass/parasitologia , Dracunculoidea/classificação , Doenças dos Peixes/parasitologia , Infecções por Spirurida/veterinária , Animais , Dracunculoidea/anatomia & histologia , Feminino , Doenças dos Peixes/epidemiologia , Lagos , Novo Brunswick/epidemiologia , Prevalência , Quebeque/epidemiologia , Rios , South Carolina/epidemiologia , Infecções por Spirurida/epidemiologia , Infecções por Spirurida/parasitologia
17.
Korean J Parasitol ; 50(4): 345-7, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23230333

RESUMO

Paragonimiasis is a parasitic disease caused by the lung fluke, Paragonimus spp. Lung flukes may be found in various organs, such as the brain, peritoneum, subcutaneous tissues, and retroperitoneum, other than the lungs. Abdominal paragonimiasis raises a considerable diagnostic challenge to clinicians, because it is uncommon and may be confused with other abdominopelvic inflammatory diseases, particularly peritoneal tuberculosis, and peritoneal carcinomatosis. Also, subcutaneous paragonimiasis does not easily bring up clinical suspicion, due to its rarity. We herein report 2 cases of abdominal paragonimiasis and 1 case of subcutaneous paragonimiasis in Korea.


Assuntos
Cavidade Abdominal/parasitologia , Paragonimíase/patologia , Paragonimus/isolamento & purificação , Tela Subcutânea/parasitologia , Animais , Biópsia por Agulha Fina , Diagnóstico Diferencial , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Paragonimíase/diagnóstico por imagem , Paragonimíase/parasitologia , Paragonimus/citologia , Radiografia , República da Coreia
18.
Pesqui. vet. bras ; 32(8): 786-788, ago. 2012.
Artigo em Português | LILACS | ID: lil-649519

RESUMO

A dioctofimose é uma parasitose causada pelo Dioctophyma renale (Goeze, 1782) de ocorrência mundial e acomete animais domésticos e silvestres. Em março de 2010, um exemplar adulto (macho) de Galictis cuja (Molina, 1782), encontrado morto por atropelamento no município de Guaíra, Paraná foi encaminhado ao laboratório de Patologia Veterinária de Universidade Federal do Paraná (UFPR), Campus Palotina, para a realização da necropsia. O cadáver apresentava bom estado nutricional e autólise moderada. Foram observados três exemplares de parasitos na cavidade abdominal, mas os rins encontravam-se preservados. Os parasitos foram fixados em formol acético e encaminhados ao laboratório de Parasitologia Veterinária da UFPR para identificação. Os exemplares coletados foram identificados como Dioctophyma renale, sendo duas fêmeas, uma com 39cm de comprimento por 4mm de largura e a outra com 16cm de comprimento por 4mm de largura e, um macho com 16cm de comprimento por 3mm de largura. O presente trabalho relata a ocorrência de parasitismo por D. renale em G. cuja na região oeste do estado do Paraná.


Dioctophymosis is a parasitic disease caused by Dioctophyma renale (Goeze, 1782) with a worldwide occurrence and affects domestic animals as well as wildlife. In March 2010, a ferret adult male, Galictis cuja (Molina, 1782), found dead by trampling in the county of Guaíra, state of Paraná, Brazil, was necropsied in the Veterinary Pathology Laboratory at Campus Palotina, Federal University of Paraná. The animal was in good nutritional condition and moderate autolysis. Three specimens of parasites were found in the abdominal cavity, but the kidneys were preserved. The parasites were fixed in acetic formaldehyde and sent to the Veterinary Laboratory of Parasitology, Campus Palotina, for identification. The parasites were identified as Dioctophyma renale, two females, one a 39cm long and 4mm wide and the other 16cm long and 4mm wide, and a male 16cm long and 3mm wide. This paper reports D. renale parasitism in G. cuja in the western of Paraná state, Brazil.


Assuntos
Animais , Autopsia/veterinária , Doenças Parasitárias em Animais/diagnóstico , Infecções por Enoplida/veterinária , Cavidade Abdominal/parasitologia , Cavidade Torácica/parasitologia
19.
Fish Shellfish Immunol ; 33(4): 780-7, 2012 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-22820379

RESUMO

Congerin is a proto-type galectin distributed on the skin and mucosal epithelia of the upper digestive tract of the Japanese conger eel Conger myriaster. It has at least 2 isotypes, namely, congerin I and II, and plays a role in bio-defense at the body surface. In the current study, we identified both isotypes in the peritoneal fluid and peritoneal cells of C. myriaster by western blot and mass spectrometry (MS)/MS analysis. Cucullanus nematodes parasitize the abdominal cavity of C. myriaster, and immunohistochemical analyses demonstrated that congerins can bind to both the body surface of the encapsulated nematodes and the encapsulating cells. Furthermore, adhesion of the peritoneal cells to Sepharose particles was greatly accelerated when the microspheres were coated with congerin. Indeed, this effect was significantly hampered by the addition of lactose. These results indicate that congerin participates in the cellular encapsulation of the Cucullanus nematode via the induction of cellular adhesion to the parasites depending on lectin-glycoside recognition.


Assuntos
Cavidade Abdominal/parasitologia , Infecções por Ascaridida/veterinária , Enguias/imunologia , Doenças dos Peixes/imunologia , Proteínas de Peixes/metabolismo , Galectinas/metabolismo , Animais , Ascaridídios/imunologia , Ascaridídios/fisiologia , Infecções por Ascaridida/imunologia , Infecções por Ascaridida/metabolismo , Líquido Ascítico/imunologia , Líquido Ascítico/parasitologia , Western Blotting/veterinária , Adesão Celular , Enguias/parasitologia , Doenças dos Peixes/metabolismo , Proteínas de Peixes/imunologia , Galectinas/imunologia , Perfilação da Expressão Gênica , Imuno-Histoquímica/veterinária , Mucosa Intestinal/imunologia , Mucosa Intestinal/parasitologia , Lactose/metabolismo , Espectrometria de Massas em Tandem/veterinária
20.
BMJ Case Rep ; 20122012 May 30.
Artigo em Inglês | MEDLINE | ID: mdl-22669859

RESUMO

Hydatid disease (HD) is a parasitic disease, most frequently caused by Echinococcus granulosus or Echinococcus multilocularis and rarely by Echinococcus vogeli or Echinococcus oligarthus. Mostly, hydatid cyst is primarily in liver (75%) and lung (15%). Peritoneal HD (13%) is usually secondary. Dissemination of HD may occur following rupture of the hydatid cyst into the peritoneal cavity. Primary peritoneal hydatid cyst disease is a rare phenomenon. We present a case of primary disseminated abdominal HD presenting with the complaint of a pain in the epigastric region along with intermittent fever. Radiological evaluation and serological examination confirmed it as primary disseminated HD involving pancreas, a cyst anterior to the left lobe of the liver just below the peritoneum and the left kidney.


Assuntos
Cavidade Abdominal/parasitologia , Equinococose/diagnóstico , Echinococcus granulosus/isolamento & purificação , Doenças Raras , Adulto , Animais , Diagnóstico Diferencial , Equinococose/parasitologia , Humanos , Laparotomia , Masculino , Tomografia Computadorizada por Raios X
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