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1.
Rev. bras. parasitol. vet ; 31(1): e016821, 2022. graf
Artigo em Inglês | LILACS, VETINDEX | ID: biblio-1360927

RESUMO

Abstract This study aimed to verify the occurrence of Dioctophyme renale in stray dogs in the city of Pelotas, in the state of Rio Grande do Sul, Brazil. The Laboratório Regional de Diagnóstico of the Universidade Federal de Pelotas received 146 wandering dogs for necropsy, sent by the City Hall of Pelotas from March 2012 to January 2020. Among the necropsied animals, seventeen dogs (11.64%) were diagnosed with dioctophymosis. Among these dogs, 11 were parasitized with one specimen in the right kidney, two dogs presented two specimens in the right kidney, and in other two dogs, the parasites were in the abdominal cavity. In one dog, two parasites were found in the left kidney; in another dog, both kidneys were parasitized, with two parasites in the right kidney and one in the left kidney. The data obtained in this study showed that the occurrence of D. renale in stray dogs in the city of Pelotas is high, and D. renale mainly parasitizes the right kidney.


Resumo Este trabalho possui como objetivo verificar a ocorrência de D. renale em cães errantes do município de Pelotas, no Rio Grande do Sul, Brasil. O Laboratório Regional de Diagnóstico da Universidade Federal de Pelotas recebeu 146 cães errantes para necropsia, encaminhados pela Prefeitura Municipal de Pelotas, no período de março de 2012 a janeiro de 2020. Dentre os cães necropsiados, 17 animais foram diagnosticados com dioctofimose, determinando uma ocorrência de 11,64%. Desses animais, onze estavam parasitados com um exemplar no rim direito, dois animais possuíam dois exemplares no rim direito. Em dois animais, os parasitas estavam na cavidade abdominal; em um animal havia, dois parasitas no rim esquerdo e noutro animal os dois rins estavam parasitados, tendo dois exemplares no rim direito e um exemplar no rim esquerdo. Os dados obtidos neste trabalho permitem concluir que é elevada a ocorrência de D. renale nos cães errantes do município de Pelotas, parasitando principalmente o rim direito.


Assuntos
Animais , Cães , Infecções por Enoplida/veterinária , Infecções por Enoplida/epidemiologia , Dioctophymatoidea , Doenças do Cão/diagnóstico , Doenças do Cão/parasitologia , Doenças do Cão/epidemiologia , Brasil/epidemiologia , Rim/parasitologia , Animais Selvagens
2.
Am J Trop Med Hyg ; 106(2): 714-717, 2021 11 15.
Artigo em Inglês | MEDLINE | ID: mdl-34781264

RESUMO

Cystic echinococcosis, known as hydatidosis, is a parasitic zoonosis caused by the larvae of Echinococcus granulosus. Renal hydatidosis is a very rare condition, representing 1% to 2% of cases. We present an 18-year-old patient who, after suffering a trauma, experienced severe lower back pain and persistent gross hematuria disproportionate to the trauma. Ultrasonography and tomography revealed cystic images compatible with right renal hydatidosis and hemoperitoneum. In addition, rapid clinical deterioration was observed with decreased hematocrit, leading to lumpectomy with abundant cysts inside and outside the right kidney, without viable parenchyma. Therefore, a total nephrectomy was performed. The patient was discharged with albendazole treatment. Pathological anatomic analysis confirmed the diagnosis of hydatidosis. Surgery remains the best therapeutic option. The use of ultrasonography improves the early detection of zoonosis, especially in pediatric patients, and favors the use of more conservative therapeutic techniques.


Assuntos
Equinococose/diagnóstico por imagem , Equinococose/cirurgia , Rim/parasitologia , Rim/cirurgia , Nefrectomia , Adolescente , Animais , Anti-Helmínticos/uso terapêutico , Equinococose/tratamento farmacológico , Echinococcus granulosus/patogenicidade , Humanos , Rim/diagnóstico por imagem , Rim/patologia , Tomografia Computadorizada por Raios X , Ultrassonografia
3.
Parasitol Res ; 120(7): 2689-2693, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-34146126

RESUMO

Poultry coccidiosis causes considerable economical losses to the livestock industry. Eimeria parasites are responsible for this disease. On a global scale, E. acervulina and E. tenella are amongst the most common Eimeria spp. infecting broilers. E. tenella is commonly used as infection model in in vivo and in vitro studies. On the other hand, E. acervulina has barely been studied under in vitro conditions. A well established and widely used in vitro model for E. tenella infection is the Madin-Darby bovine kidney cell line (MDBK); however, little is known regarding suitability of MDBK cells as host cells for E. acervulina. We infected MDBK monolayers with two different doses, 5 × 104 and 2 × 105, of E. acervulina sporozoites and evaluated cultures at 24 and 96 h post infection (hpi). For comparison, we ran an identical infection assay using E. tenella sporozoites. To assess parasite reproduction, the number of DNA copies of E. acervulina SCAR marker and E. tenella ITS-1 gene was quantified using real-time quantitative PCR. We found that the number of E. acervulina copies increased significantly at 24 hpi in comparison to E. tenella (p < 0.05). After 96 hpi, E. acervulina gene copies were considerably reduced while E. tenella continued to multiply (p < 0.05). Our results show that MDBK monolayers could be used for in vitro research aimed to study E. acervulina sporozoite cell invasion. Nevertheless, modifications of in vitro cultivation appear necessary to allow qualitative and quantitative studies over longer periods of parasite reproduction.


Assuntos
Eimeria/fisiologia , Rim/parasitologia , Animais , Bovinos , Linhagem Celular , Galinhas/parasitologia , Coccidiose/parasitologia , Coccidiose/veterinária , Eimeria/classificação , Eimeria/genética , Eimeria tenella/genética , Eimeria tenella/fisiologia , Células Epiteliais , Rim/citologia , Doenças das Aves Domésticas/parasitologia , Reação em Cadeia da Polimerase em Tempo Real , Esporozoítos/classificação , Esporozoítos/genética , Esporozoítos/fisiologia
4.
J Parasitol ; 107(2): 358-363, 2021 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-33906232

RESUMO

The life cycle of Dioctophyma renale involves an intermediate host (oligochaete), a paratenic hosts (fish and frogs), and a definitive host (mustelids and canids). Dogs are at risk of infection with D. renale when they consume paratenic hosts infected with the larval form of D. renale. Water containing the oligochaete intermediate host cannot be disregarded as another source of infection. Infections occur mainly in the right kidney, but worms have also been found in the abdominal cavity as well as other organs. Most dogs appear asymptomatic and infections are usually noted as incidental findings on necropsy. Recently, the Ontario Society for the Prevention of Cruelty to Animals (SPCA) and Humane Society conducted transports of dogs located in northern remote communities. In 2016, some female dogs were found to be infected with D. renale upon ovariohysterectomy. In response to this discovery, we developed a screening protocol to screen for D. renale infections. In 2018, a total of 130 intact dogs were transferred from 2 northern communities in the provinces of Ontario and Manitoba. A prevalence of 7.94% (95% confidence interval 3.87-14.11%) was found from dogs from the northern communities. The screening protocol we developed provides a method of screening for dogs that are transported from communities that could be at risk of infection with D. renale.


Assuntos
Dioctophymatoidea/fisiologia , Doenças do Cão/parasitologia , Infecções por Enoplida/veterinária , Animais , Intervalos de Confiança , Dioctophymatoidea/isolamento & purificação , Doenças do Cão/diagnóstico , Doenças do Cão/epidemiologia , Doenças do Cão/terapia , Cães , Infecções por Enoplida/diagnóstico , Infecções por Enoplida/epidemiologia , Infecções por Enoplida/terapia , Feminino , Rim/parasitologia , Rim/fisiologia , Testes de Função Renal/veterinária , Masculino , Manitoba/epidemiologia , Programas de Rastreamento/veterinária , Ontário/epidemiologia , Prevalência , Urina/parasitologia
5.
BMC Nephrol ; 21(1): 428, 2020 10 08.
Artigo em Inglês | MEDLINE | ID: mdl-33032540

RESUMO

BACKGROUND: Almost all cases of renal hydatid cysts need surgical intervention for treatment. We report a case of isolated renal hydatid cyst treated successfully only with medical therapy. CASE PRESENTATION: This case is a 79-year-old veterinarian presented with right flank pain, hydatiduria and positive echinococcus granulosus serology. A 70*50 mm cyst with daughter cysts in mid-portion of right kidney on presentation was changed into a 60*40 mm cyst without daughter cysts at last follow-up. Due to patient's refusal of surgery, our patient received medical treatment including praziquantel and albendazole. After completion of first round of treatment, recurrence occurred and the same treatment was repeated. At last, the cyst became inactive and calcified with negative serology and no clinical symptoms under medical treatment. CONCLUSION: The treatment of choice in renal hydatid cyst is surgery; although there are some reports about the efficacy of medical treatments for hydatid cysts but lower rates of recurrence and higher efficacy put surgery in a superior position compared to medical approaches. Our case showed relative success of medical treatment, despite the presence of a large multilocular renal involvement. Thus, medical therapy without surgery can be considered in very particular cases with isolated renal hydatid cysts.


Assuntos
Albendazol/administração & dosagem , Anticestoides/administração & dosagem , Equinococose/tratamento farmacológico , Echinococcus granulosus , Nefropatias/tratamento farmacológico , Praziquantel/administração & dosagem , Idoso , Animais , Quimioterapia Combinada , Equinococose/diagnóstico por imagem , Echinococcus granulosus/isolamento & purificação , Humanos , Rim/diagnóstico por imagem , Rim/parasitologia , Rim/patologia , Nefropatias/diagnóstico por imagem , Nefropatias/parasitologia , Masculino , Recidiva , Tomografia Computadorizada por Raios X , Ultrassonografia , Urina/parasitologia
6.
Rev Bras Parasitol Vet ; 29(4): e011820, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33111844

RESUMO

Dioctophymosis is caused by Dioctophyme renale, a nematode that usually affects the right kidney of carnivores. The aim of this study was to report on a case of a dog with progressive weight loss and swollen abdomen that was diagnosed as presenting dioctophymosis. The patient underwent surgical treatment through which 34 nematodes were found, of which 18 were female and 16 were male, with a maximum length of 74 centimeters. The parasites were free in the abdominal cavity and inside the right kidney, and had caused peritonitis, free fluid, severe adherences between the abdominal organs and renal perforation. Parasitic diseases with a high number of specimens of this species are uncommon in dogs. The disease progresses with an inflammatory reaction and consequent formation of adherences and granulomatous tissue. This surrounds the eggs that were eliminated in the abdominal cavity by the free parasites. This disease occurs frequently in the city of Pelotas, Rio Grande do Sul, Brazil, where the patient of this report was living. To the best of authors' knowledge, this is the case with the largest number of specimens of D. renale removed from a single dog in vivo.


Assuntos
Dioctophymatoidea , Doenças do Cão , Infecções por Enoplida , Animais , Brasil , Doenças do Cão/diagnóstico , Doenças do Cão/parasitologia , Cães/parasitologia , Infecções por Enoplida/diagnóstico , Infecções por Enoplida/veterinária , Feminino , Rim/parasitologia , Masculino
7.
Fish Shellfish Immunol ; 106: 859-865, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-32898655

RESUMO

Southern Bluefin Tuna (SBT), Thunnus maccoyii, is ranched off Port Lincoln, South Australia and is Australia's second largest economic finfish aquaculture industry. The biggest threats to SBT health identified by the industry are the blood flukes Cardicola forsteri and C. orientalis (Trematoda: Aporocotylidae). Melanomacrophage centres (MMCs) are aggregations of pigmented macrophage like cells present in spleen, kidney and liver of teleost fish. The aim of this study was to quantify MMCs in SBT anterior kidney, liver and spleen to investigate changes in relation to Cardicola spp. Infection. Samples were collected at the end of ranching from pontoons where SBT were treated with PZQ and pontoons with untreated SBT. SBT MMC percentage of surface area cover was highest in SBT spleen and lowest in the liver. Significant positive correlations were identified between SBT MMC area and SBT size in all three organs (p < 0.05). MMC area and parasite infection showed significant positive correlations in the kidney and spleen for Cardicola spp. gill egg counts, and in the kidney for C. forsteri DNA from SBT hearts and gills (p < 0.05). MMCs area increased with increased intensity of Cardicola spp. Infection and MMCs have the potential to be used as an indicator to assess health effects that Cardicola spp. have on SBT.


Assuntos
Doenças dos Peixes/imunologia , Fagócitos/imunologia , Trematódeos , Infecções por Trematódeos/imunologia , Atum/imunologia , Animais , Doenças dos Peixes/parasitologia , Rim/citologia , Rim/imunologia , Rim/parasitologia , Fígado/citologia , Fígado/imunologia , Fígado/parasitologia , Baço/citologia , Baço/imunologia , Baço/parasitologia , Infecções por Trematódeos/parasitologia , Infecções por Trematódeos/veterinária , Atum/parasitologia
9.
Clin J Am Soc Nephrol ; 15(7): 964-972, 2020 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-32444394

RESUMO

BACKGROUND AND OBJECTIVES: Malaria, a potentially life-threatening disease, is the most prevalent endemic infectious disease worldwide. In the modern era, the spectrum of glomerular involvement observed in patients after malarial infections remains poorly described. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: We therefore performed a retrospective multicenter study to assess the clinical, biologic, pathologic, and therapeutic characteristics of patients with glomerular disease demonstrated by kidney biopsy in France within 3 months of an acute malaria episode. RESULTS: We identified 23 patients (12 men), all but 1 of African ancestry and including 10 patients with concomitant HIV infection. All of the imported cases were in French citizens living in France who had recently traveled back to France from an endemic area and developed malaria after their return to France. Eleven patients had to be admitted to an intensive care unit at presentation. Plasmodium falciparum was detected in 22 patients, and Plasmodium malariae was detected in 1 patient. Kidney biopsy was performed after the successful treatment of malaria, a mean of 24 days after initial presentation. At this time, all patients displayed AKI, requiring KRT in 12 patients. Nephrotic syndrome was diagnosed in 17 patients. Pathologic findings included FSGS in 21 patients and minimal change nephrotic syndrome in 2 patients. Among patients with FSGS, 18 had collapsing glomerulopathy (including 9 patients with HIV-associated nephropathy). In four patients, immunohistochemistry with an antibody targeting P. falciparum histidine-rich protein-2 demonstrated the presence of the malaria antigen in tubular cells but not in podocytes or parietal epithelial cells. An analysis of the apoL1 risk genotype showed that high-risk variants were present in all seven patients tested. After a mean follow-up of 23 months, eight patients required KRT (kidney transplantation in two patients), and mean eGFR for the other patients was 51 ml/min per 1.73 m2. CONCLUSIONS: In patients of African ancestry, imported Plasmodium infection may be a new causal factor for secondary FSGS, particularly for collapsing glomerulopathy variants in an APOL1 high-risk variant background.


Assuntos
Injúria Renal Aguda/parasitologia , Glomerulosclerose Segmentar e Focal/etiologia , Glomerulosclerose Segmentar e Focal/patologia , Infecções por HIV/complicações , Malária Falciparum/complicações , Injúria Renal Aguda/terapia , Adulto , Idoso , Terapia Antirretroviral de Alta Atividade , Apolipoproteína L1/genética , População Negra/etnologia , Feminino , França , Glomerulosclerose Segmentar e Focal/terapia , Infecções por HIV/tratamento farmacológico , Humanos , Rim/parasitologia , Masculino , Pessoa de Meia-Idade , Nefrose Lipoide/etiologia , Nefrose Lipoide/patologia , Nefrose Lipoide/terapia , Plasmodium falciparum , Diálise Renal , Estudos Retrospectivos , Adulto Jovem
10.
Vet Pathol ; 57(2): 316-320, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-32079507

RESUMO

Over a 3-year-period, 17 wild-caught opaleye (Girella nigricans) housed in a public display aquarium were found dead without premonitory signs. Grossly, 4 animals had pinpoint brown or black foci on coelomic adipose tissue. Histologically, liver, spleen, heart, and posterior kidney had mesomycetozoan granulomas in all cases; other organs were less commonly infected. Four opaleye had goiter; additional substantial lesions were not identified. Granulomas surrounded melanized debris, leukocytes, and mesomycetozoa represented by folded membranes (collapsed schizont walls), intact schizonts (50- to >200 µm in diameter with a multilaminate membrane), plasmodia (budding from schizonts or free in tissue), or rarely germinal tubes (budding from schizonts). Ichthyophonus was grown from fresh tissues in tissue explant broth cultures of the heart, liver, and/or spleen. Polymerase chain reaction using 18S ribosomal DNA primers amplified a 1730-bp region, and the DNA sequence was most similar to Ichthyophonus hoferi, which is often associated with freshwater aquaculture fish.


Assuntos
Doenças dos Peixes/parasitologia , Mesomycetozoea/isolamento & purificação , Perciformes/parasitologia , Animais , Primers do DNA/genética , Feminino , Doenças dos Peixes/patologia , Coração/parasitologia , Rim/parasitologia , Rim/patologia , Fígado/parasitologia , Fígado/patologia , Masculino , Mesomycetozoea/genética , Miocárdio , Filogenia , Reação em Cadeia da Polimerase/veterinária , Baço/parasitologia , Baço/patologia
11.
BMC Res Notes ; 13(1): 37, 2020 Jan 20.
Artigo em Inglês | MEDLINE | ID: mdl-31959229

RESUMO

OBJECTIVE: Acute kidney injury (AKI) is a frequent presentation in malaria infections. Several cases of AKI that are accompanied by clinical symptoms of malaria infection, such as fever, nausea, respiratory distress, and anemia remain undiagnosed due to challenges in accurate diagnosis using peripheral blood microscopy and rapid diagnostic tests that are currently used in clinical settings. This is particularly true for P. vivax and P. knowlesi infections. As a result, these patients are not able to receive anti-malarial therapy in a timely manner. The objective of the present study was to investigate if patients presenting with AKI harbored any of the five human Plasmodium species (P. falciparum, P. vivax, P. knowlesi, P. malariae, and P. ovale) within their renal tissues. RESULTS: We found that renal biopsies from malaria associated AKI patients harbor the human malaria parasites P. falciparum, P. vivax and P. knowlesi as mono- and mixed species infections. Presence of microvascular injury in a majority of the malaria associated AKI cases suggested vascular involvement of P. vivax and P. knowlesi. This research note also highlights P. knowlesi as an emerging pathogen in the Indian subcontinent.


Assuntos
Injúria Renal Aguda/parasitologia , Rim/parasitologia , Malária/parasitologia , Plasmodium/isolamento & purificação , Biópsia , Estudos de Casos e Controles , Índia , Rim/patologia , Malária/diagnóstico , Malária/epidemiologia , Microscopia , Plasmodium falciparum/isolamento & purificação , Plasmodium knowlesi/isolamento & purificação , Plasmodium vivax/isolamento & purificação , Estudos Retrospectivos
12.
Exp Parasitol ; 208: 107800, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31726054

RESUMO

The aims of this study were an establishment of the domestic rabbit as an intermediate host for cystic echinococcosis (CE) and to evaluate the potency of the crude germinal layer and the protoscoleces antigens to protect against the CE. Firstly; Two groups of white Newzeland rabbits were infected orally either by 5000 active oncospheres or viable protoscoleces separately. After 20 weeks, the slaughtered rabbits showed the presence of hydatid cysts at different internal organs. Molecular detection of the resulted cysts was conducted. Secondly; 27 rabbits were divided into nine groups (n = 3). Groups 1 and 2 were immunized with the crude germinal layer antigen while the groups 3 and 4 were immunized with the crude protoscoleces antigen. Groups 5 and 6 received the adjuvant mineral oil. Groups 7 and 8 were used as positive control. The last 9 group was kept as a negative control. The obtained results showed a significant high protection percentage of 83.4% and high antibody titer was recorded in groups that received the crude germinal layer antigen comparing with the groups that immunized with the crude protoscoleces antigen as their protection percentage was 66.7% with lower IgG response. In conclusion, the domestic rabbits could be used as a laboratory model for CE. Developing of the germinal layer antigen is more immunogenic than the protoscoleces one and could be used as a promising vaccine. Attention should be directed towards the existing rabbit in the environment adjacent to infected dogs as it could be a part of Echinococcus life cycle.


Assuntos
Modelos Animais de Doenças , Equinococose/prevenção & controle , Echinococcus/imunologia , Coelhos , Vacinação , Vacinas , Análise de Variância , Animais , Antígenos de Helmintos/imunologia , DNA de Helmintos/isolamento & purificação , Cães , Echinococcus/genética , Ensaio de Imunoadsorção Enzimática , Imunoglobulina G/biossíntese , Rim/parasitologia , Fígado/parasitologia , Pulmão/parasitologia , Masculino , Omento/parasitologia , Potência de Vacina
13.
Rev. bras. parasitol. vet ; 29(4): e011820, 2020. graf
Artigo em Inglês | LILACS | ID: biblio-1138139

RESUMO

Abstract Dioctophymosis is caused by Dioctophyme renale, a nematode that usually affects the right kidney of carnivores. The aim of this study was to report on a case of a dog with progressive weight loss and swollen abdomen that was diagnosed as presenting dioctophymosis. The patient underwent surgical treatment through which 34 nematodes were found, of which 18 were female and 16 were male, with a maximum length of 74 centimeters. The parasites were free in the abdominal cavity and inside the right kidney, and had caused peritonitis, free fluid, severe adherences between the abdominal organs and renal perforation. Parasitic diseases with a high number of specimens of this species are uncommon in dogs. The disease progresses with an inflammatory reaction and consequent formation of adherences and granulomatous tissue. This surrounds the eggs that were eliminated in the abdominal cavity by the free parasites. This disease occurs frequently in the city of Pelotas, Rio Grande do Sul, Brazil, where the patient of this report was living. To the best of authors' knowledge, this is the case with the largest number of specimens of D. renale removed from a single dog in vivo.


Resumo A dioctofimose é causada por Dioctophyme renale, um nematódeo que geralmente afeta o rim direito de carnívoros. Este trabalho objetivou relatar o caso de um cão, com perda de peso progressiva e abaulamento abdominal, diagnosticado com dioctofimose. O paciente foi submetido a tratamento cirúrgico, o que permitiu o achado de 34 nematódeos, sendo 18 fêmeas e 16 machos, com tamanho máximo de 74 centímetros. Os parasitos encontravam-se livres na cavidade abdominal e no interior do rim direito, causando peritonite, formação de líquido livre, intensas aderências entre os órgãos abdominais e uma perfuração renal. Parasitoses com alto número de exemplares dessa espécie são incomuns em cães. Cursam com reação inflamatória, com consequente formação de aderências e tecido granulomatoso, envolvendo os ovos eliminados na cavidade abdominal pelos parasitos livres. A doença é frequente na cidade de Pelotas, Rio Grande do Sul, Brasil, área de origem da paciente afetada. De acordo com a pesquisa realizada, acredita-se que esse é o caso com o maior número de exemplares de D. renale removidos de um cão in vivo.


Assuntos
Animais , Masculino , Feminino , Infecções por Enoplida/diagnóstico , Infecções por Enoplida/veterinária , Dioctophymatoidea , Doenças do Cão/diagnóstico , Doenças do Cão/parasitologia , Brasil , Cães/parasitologia , Rim/parasitologia
14.
Vet Parasitol Reg Stud Reports ; 18: 100339, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31796187

RESUMO

Dioctophymosis is caused by Dioctophyme renale, nematode with indirect life cycle. Its intermediate host is a freshwater oligochaete and its definitive host is a wild or household carnivore. The adult nematode develops in the definite host, generally locating itself in the kidney. This article was meant to describe the first nephrectomy performed in a domestic cat due to renal dioctophymosis in Argentina. The subject showed a non-specific appearance of generally feeling ill, hematuria and mild diarrhea. It was diagnosed through abdominal ultrasound, followed by exploratory celiotomy and nephrectomy. After verifying absence of free specimens, the right kidney was removed. This organ was found to be enlarged in a spheroidal manner in contrast to the left kidney, with significant thickening of the renal capsule, excessive congestion of vessels and adhesions involving the caudal vena cava. An adult nematode was removed from the right kidney and identified as Dioctophyme renale. Reports of feline dioctophymosis are scarce being most of them necropsy findings. In this we are presenting a confirmed case of D. renale removed by surgery from a live cat. The results presented here reinforces the fact that cats are also appropriate definitive hosts for this parasite.


Assuntos
Doenças do Gato/diagnóstico , Doenças do Gato/cirurgia , Dioctophymatoidea/isolamento & purificação , Infecções por Enoplida/veterinária , Nefrectomia/veterinária , Animais , Argentina , Doenças do Gato/parasitologia , Gatos , Infecções por Enoplida/diagnóstico , Infecções por Enoplida/parasitologia , Infecções por Enoplida/cirurgia , Rim/parasitologia , Masculino , Resultado do Tratamento
15.
Transpl Infect Dis ; 21(5): e13154, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31373746

RESUMO

Disseminated toxoplasmosis is infrequent after kidney transplant transmission but life-threatening because of a lack of diagnostic suspicion as well as specific chemoprophylaxis recommendations. Solid organ transplantation has resulted in few cases of disseminated toxoplasmosis presenting with associated hemophagocytic syndrome. Herein, we report, within the context of a donor/receiver mismatch, a case of a toxoplasmosis associated with hemophagocytic syndrome in a kidney transplant recipient. Molecular and serological investigations confirmed Toxoplasma gondii transmission through the kidney graft.


Assuntos
Transplante de Rim/efeitos adversos , Rim/parasitologia , Linfo-Histiocitose Hemofagocítica/complicações , Doadores de Tecidos , Toxoplasmose/diagnóstico , Adulto , Anticorpos Antiprotozoários/sangue , Humanos , Masculino , Toxoplasma , Toxoplasmose/transmissão
16.
J Helminthol ; 94: e64, 2019 Jul 23.
Artigo em Inglês | MEDLINE | ID: mdl-31331413

RESUMO

Despite several studies conducted to determine the genotypes of cystic echinococcosis (CE) agents in humans and other intermediate hosts, the relationship between parasite genotype and clinical presentation of hydatidosis is yet to be well defined. The aim of this study was to compare the genotypes/haplotypes of CE agents of human extra-hepatopulmonary hydatid cysts and common hydatid cysts of the liver. A comparative analysis was carried out between partial cox1 sequences of ten extra-hepatopulmonary hydatid cysts, two liver cysts and reliable sequences from the GenBank database. All the studied hydatid cysts had the Echinococcus granulosus sensu stricto (G1-G2-G3) genotypes. The liver CE cysts were caused by common G1 genotype, while six of the extra-hepatopulmonary cysts had genotypes different from common G1 cysts. The sequences of these six isolates were identical to the G2 and G3 genotypes of E. granulosus sensu stricto; the kidney and peritoneum cysts and most of the brain cysts were identified as G2 genotype, while G3 genotype was only reported in a cyst belonging to the pelvic region. Given the observed differences between the sequences of hydatid cysts, it seems that the replacement of hydatid cysts in organs other than the liver and lungs can be related to their genotypes and probably intra-genotypic characteristics. It was hypothesized that in each geographic area, less frequent genotypes were likely to be more consistent with placement in the host's unusual organs.


Assuntos
Equinococose/parasitologia , Echinococcus granulosus/genética , Genótipo , Haplótipos , Filogenia , Adolescente , Adulto , Animais , Encéfalo/parasitologia , Pré-Escolar , DNA de Helmintos/genética , Equinococose/diagnóstico , Echinococcus granulosus/classificação , Feminino , Variação Genética , Humanos , Irã (Geográfico) , Rim/parasitologia , Fígado/parasitologia , Masculino , Pessoa de Meia-Idade , Análise de Sequência de DNA
17.
Transbound Emerg Dis ; 66(6): 2474-2481, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31339665

RESUMO

In this study, we describe the pathology of Leishmania infantum infection in naturally infected wild Leporidae and compare diagnosis of infection using histopathology, direct fluorescent antibody (DFA) assay, immunofluorescence antibody test (IFAT) and quantitative real-time PCR (qPCR). Tissues were analysed from 52 European rabbits (Oryctolagus cuniculus) and 7 Iberian hares (Lepus granatensis) from the Community of Madrid (Spain). Our results show that L. infantum infection is associated with only minimal histopathological lesions and that L. infantum amastigotes can be detected by DFA assay in all tissues types tested, including skin. These results were confirmed by qPCR on fresh frozen tissues in 13% of rabbits and 100% of hares. However, L. infantum DNA could not be detected by qPCR on paraffin-embedded tissue obtained by laser capture microdissection. Using the DFA assay to diagnose L. infantum, infection may provide further insights into this disease in wild animals and may allow the precise tissue localization of L. infantum, thereby guiding follow-up tests with more accurate qPCR.


Assuntos
Lebres/parasitologia , Leishmania infantum/parasitologia , Leishmaniose Visceral/diagnóstico , Coelhos/parasitologia , Animais , Medula Óssea/parasitologia , Técnica Direta de Fluorescência para Anticorpo , Trato Gastrointestinal/parasitologia , Coração/parasitologia , Rim/parasitologia , Microdissecção e Captura a Laser , Leishmania infantum/genética , Fígado/parasitologia , Pulmão/parasitologia , Linfonodos/parasitologia , Meninges/parasitologia , Músculo Esquelético/parasitologia , Pâncreas/parasitologia , Reação em Cadeia da Polimerase em Tempo Real , Pele/parasitologia , Espanha , Baço/parasitologia
18.
Rev. bras. parasitol. vet ; 28(3): 367-375, July-Sept. 2019. tab, graf
Artigo em Inglês | LILACS | ID: biblio-1042538

RESUMO

Abstract Renicolids are parasites that inhabit the renal tubules and ureters of molluscivorous and piscivorous birds. Puffinus puffinus is a migratory seabird that was identified as the definitive host of Renicola spp. Studies focusing on the renicolid species and the resulting renal lesions are valuable for their association with causes of stranding in seabirds. The aim of this study was to identify the renicolid trematodes and evaluate the histological findings in two P. puffinus stranded on the coast of Paraná state, Brazil. The parasites were evaluated by histologic, ultrastructural and molecular assays, while tissue changes were analyzed by histologic methods. The morphological and morphometrical characteristics of the parasites, along with polymerase chain reaction and sequencing assays (ribosomal and mitochondrial regions), identified the species as Renicola sloanei. The results also suggest that this helminth can be the adult form of Cercaria pythionike. The dilation of collecting ducts was the main histological finding in the kidneys. In conclusion, R. sloanei was identified, and for the first time, P. puffinus was described as a host of this digenean inducing mild renal changes.


Resumo Renicolídeos são parasitos que habitam túbulos renais e ureteres de aves que se alimentam de moluscos e peixes. Puffinus puffinus, ave marinha migratória, foi registrada como hospedeiro definitivo de Renicola spp. Estudos relacionados com as espécies de renicolídeos e as lesões renais resultantes são importantes para o entendimento das causas de óbito de aves marinhas. O objetivo deste estudo foi identificar os trematódeos renicolídeos e avaliar os achados histológicos em dois P. puffinus encalhados no litoral do Estado do Paraná, Brasil. Os parasitos foram avaliados por ensaios histológicos, ultraestruturais e moleculares, enquanto as alterações teciduais foram analisadas por métodos histológicos. As características morfológicas e morfométricas dos parasitos, juntamente com a reação em cadeia da polimerase e sequenciamento (regiões ribossomal e mitocondrial), identificaram a espécie como Renicola sloanei. Os resultados também sugerem que este helminto pode ser a forma adulta de Cercaria pythionike. A dilatação dos ductos coletores foi o principal achado histológico renal. Em conclusão, R. sloanei foi identificado, e pela primeira vez P. puffinus foi descrito como hospedeiro deste digenético induzindo alterações renais discretas.


Assuntos
Animais , Trematódeos/isolamento & purificação , Doenças das Aves/parasitologia , Aves/parasitologia , Rim/parasitologia , Filogenia , Trematódeos/classificação , Trematódeos/genética , Trematódeos/ultraestrutura , DNA Mitocondrial/genética , DNA Ribossômico/genética , Análise de Sequência de DNA , DNA de Helmintos/genética
19.
Parasite ; 26: 22, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30963996

RESUMO

Due to the rarity of human cases and the nonspecific clinical symptoms of dioctophymiasis, Dioctophyma renale infection is not well recognized and is easily neglected or misdiagnosed. Recently, we diagnosed a human case of dioctophymiasis accompanied by renal cancer. To enhance the understanding of human dioctophymiasis, this case is presented here, and a retrospective study of this disease was conducted based on relevant papers screened from PubMed and three Chinese databases. In the end, 32 papers describing 37 human cases of dioctophymiasis were assessed. These cases were distributed in ten countries of Asia, Europe, North America and Oceania, with the highest number in China (n = 22). The majority of the cases occurred in adults (91.9%, 34/37) and involved the kidneys (83.8%, 31/37). Ectopic parasitism mainly occurred in subcutaneous tissue (83.3%, 5/6). A proportion of 45.9% (17/37) of individuals had a history of eating raw or undercooked fish or frogs. The main clinical manifestations of human dioctophymiasis were loin pain (59.5%) and hematuria (59.5%). All the cases were diagnosed based on the morphological characteristics of eggs or adults in urine or tissue sections. Currently, there is no strictly defined therapeutic approach. This is the first retrospective analysis of human cases of dioctophymiasis. These review data will deepen our understanding of dioctophymiasis and help avoid misdiagnosis in clinical practice.


Assuntos
Infecções por Enoplida/complicações , Infecções por Enoplida/diagnóstico , Neoplasias Renais/etiologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Animais , Ásia/epidemiologia , Criança , China/epidemiologia , Dioctophymatoidea/isolamento & purificação , Ectoparasitoses/epidemiologia , Infecções por Enoplida/urina , Europa (Continente)/epidemiologia , Feminino , Peixes/parasitologia , Humanos , Rim/parasitologia , Rim/patologia , Neoplasias Renais/diagnóstico , Neoplasias Renais/parasitologia , Masculino , Pessoa de Meia-Idade , América do Norte/epidemiologia , Alimentos Crus/parasitologia , Estudos Retrospectivos , Fatores Sexuais , Adulto Jovem
20.
J Helminthol ; 94: e31, 2019 Feb 07.
Artigo em Inglês | MEDLINE | ID: mdl-30729895

RESUMO

Abattoirs are vital for gathering information on animal diseases and protecting the public from consuming infected or unhygienic meat. To assess the major reasons for organ and carcass condemnations and their financial implications, we reviewed 10-year abattoir records of slaughtered bovines between January 2005 and December 2014 at Kombolcha ELFORA abattoir, north-east Ethiopia. Of the 46,913 cattle slaughtered during that period, 17,963 (38.3%) had at least one disease condition. Lungs (10.67%) and liver (25%) were the most affected and condemned organs, followed by heart (1.53%), head (0.56%), tongue (0.17%) and kidney (0.32%). The major conditions responsible for condemnation were fasciolosis (49.89%), hydatid cyst (55.55%), pericarditis (78.2%), hydronephrosis (35.8%), abscess (71.7%) and abscess (43.9%), in liver, lung, heart, kidneys, head and tongue, respectively. The direct financial losses incurred from organ and carcass condemnation over the 10-year period amounted to ETB 1,219,399 (USD 61,946.9), with parasitic diseases such as fascioliasis and hydatidosis accounting for ETB 256,837.5 (USD 13,047.64) and ETB 170,827.5 (USD 8678.23) in losses, respectively. This study describes a significant loss of cheap and reliable sources of protein due to non-utilization of infected organs or carcasses, emphasizing the need to implement integrated approaches in disease surveillance and control programmes.


Assuntos
Doenças dos Bovinos/parasitologia , Doenças Parasitárias em Animais/parasitologia , Matadouros/estatística & dados numéricos , Animais , Bovinos , Doenças dos Bovinos/economia , Doenças dos Bovinos/epidemiologia , Etiópia/epidemiologia , Feminino , Rim/parasitologia , Fígado/parasitologia , Pulmão/parasitologia , Masculino , Carne/análise , Carne/economia , Carne/parasitologia , Parasitos/classificação , Parasitos/genética , Parasitos/isolamento & purificação , Doenças Parasitárias em Animais/economia , Doenças Parasitárias em Animais/epidemiologia , Estudos Retrospectivos
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