Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria最新文献_第9页

Alterations in blood glucose concentration in wild rodents, Holochilus sciureus, naturally infected with Schistosoma mansoni. 野生啮齿动物 Holochilus sciureus 自然感染曼氏血吸虫后血糖浓度的变化。

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2022-03-28 eCollection Date: 2022-01-01 DOI: 10.1590/S1984-29612022019

João Gustavo Mendes Rodrigues, Maria Gabriela Sampaio Lira, Ranielly Araújo Nogueira, Gleycka Cristine Carvalho Gomes, Irlla Correia Lima Licá, Jeferson Kelvin Alves de Oliveira Silva, Guilherme Silva Miranda, Nêuton Silva-Souza

{"title":"Alterations in blood glucose concentration in wild rodents, Holochilus sciureus, naturally infected with Schistosoma mansoni.","authors":"João Gustavo Mendes Rodrigues, Maria Gabriela Sampaio Lira, Ranielly Araújo Nogueira, Gleycka Cristine Carvalho Gomes, Irlla Correia Lima Licá, Jeferson Kelvin Alves de Oliveira Silva, Guilherme Silva Miranda, Nêuton Silva-Souza","doi":"10.1590/S1984-29612022019","DOIUrl":"10.1590/S1984-29612022019","url":null,"abstract":"The present study aimed to evaluate the changes in peripheral blood glucose concentrations induced by Schistosoma mansoni infection in Holochilus sciureus rodents, a wild reservoir of the parasite. Glucose concentration was measured in the plasma of blood samples using a colorimetric enzymatic test. Biological parameters and S. mansoni burden in each rodent were also verified and correlated with glucose concentrations. A total of 76 H. sciureus were captured, out of which 20 (26%) were infected with S. mansoni (n=13 males and n=7 females). Although the parasite burden was comparable between the sexes, blood glucose concentration was lower in infected males and almost unchanged in females. Furthermore, histopathological data revealed that male rodents had a greater hepatic granulomatous inflammatory reaction than females. In addition, we also confirmed that the weight and total length of the analyzed animals had no effect on glucose levels. Therefore, natural infection with S. mansoni in H. sciureus may have a lower impact on glycemic homeostasis in females, which will help us understand the role of these rodents as reservoirs of S. mansoni.","PeriodicalId":21270,"journal":{"name":"Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria","volume":"31 2","pages":"e021921"},"PeriodicalIF":0.0,"publicationDate":"2022-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9901889/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9080587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Gastrointestinal parasites of Leontopithecus chrysomelas in the Atlantic Forest, Brazil. 巴西大西洋森林中 Leontopithecus chrysomelas 的胃肠道寄生虫。

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2022-02-21 eCollection Date: 2022-01-01 DOI: 10.1590/S1984-29612022005

Lilian Silva Catenacci, Janilda Barros Santiago Oliveira, Kristel Myriam De Vleeschouwer, Leonardo de Carvalho Oliveira, Sharon Lynn Deem, Severino Cavalcante de Sousa Júnior, Karina Rodrigues Dos Santos

{"title":"Gastrointestinal parasites of Leontopithecus chrysomelas in the Atlantic Forest, Brazil.","authors":"Lilian Silva Catenacci, Janilda Barros Santiago Oliveira, Kristel Myriam De Vleeschouwer, Leonardo de Carvalho Oliveira, Sharon Lynn Deem, Severino Cavalcante de Sousa Júnior, Karina Rodrigues Dos Santos","doi":"10.1590/S1984-29612022005","DOIUrl":"10.1590/S1984-29612022005","url":null,"abstract":"We performed coproparasitological testing of free-living golden-headed lion tamarins, Leontopithecus chrysomelas, using the Hoffmann-Pons-Janner method. In total, we collected 118 samples from ten groups: four living in Federal Protected Area and six living in Non-Protected Areas of cocoa farms. Eggs from parasites of the Acanthocephala phylum and Spiruridae, Ancylostomatidae, Ascarididae and Oxyuridae families were identified, as well as the genus Strongyloides (Nematode: Strongyloididae) and phylum Apicomplexa. This is the first description of infection with coccidian, Trichuridae family and Strongyloides spp. in L. chrysomelas. A total of 48% (n= 57) of the animals were infected and the highest prevalence (37.2±SD 8.72, n = 44) was for Acanthocephalidae, followed by Spiruridae (8.5±SD 5.03, n = 10). There was no difference in parasite prevalence by age classes or sex. However, we found higher diversity and prevalence of parasites in animals living in the Federal Protected Area. These results suggest that intestinal parasites may be influenced by environmental factors, such as the management of the areas where the animals live, in addition to the feeding behavior of L. chrysomelas and distinct transmission strategies of parasites. The combination of ecological and demographic data combined with parasitological studies may contribute to conservation programs for this species.","PeriodicalId":21270,"journal":{"name":"Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria","volume":"31 1","pages":"e013521"},"PeriodicalIF":0.0,"publicationDate":"2022-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9901878/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9080576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Parasitism of Arapaima gigas (Schinz, 1822) in fish farms of the state of Amazonas, Brazil. 巴西亚马逊州养鱼场中巨骨滑舌鱼的寄生(Schinz, 1822)。

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2022-01-01 DOI: 10.1590/S1984-29612022064

Marilson Farias Gama, Daniel Brito Porto, Hélio Daniel Beltrão Dos Anjos, Franmir Rodrigues Brandão, Gabriela Tomas Jerônimo, Patricia Oliveira Maciel-Honda, Edsandra Campos Chagas

{"title":"Parasitism of Arapaima gigas (Schinz, 1822) in fish farms of the state of Amazonas, Brazil.","authors":"Marilson Farias Gama, Daniel Brito Porto, Hélio Daniel Beltrão Dos Anjos, Franmir Rodrigues Brandão, Gabriela Tomas Jerônimo, Patricia Oliveira Maciel-Honda, Edsandra Campos Chagas","doi":"10.1590/S1984-29612022064","DOIUrl":"https://doi.org/10.1590/S1984-29612022064","url":null,"abstract":"The objective of this study was to investigate the parasites occurrences and to determine the rates of infestation/parasitic infection in juvenile Arapaima gigas from seven fish farms in the state of Amazonas, relating to the characteristics of these fish farms. Of the 70 A. gigas evaluated, 43 were infested/infected, with a total of 133 parasites collected. Three fish farms (2, 4, 6) showed the highest levels of prevalence of parasites (100%, 70%, 70%), mean intensity (4.1±2.6, 8.1±9.2, and 2.1±1.3), and mean abundance (4.1±2.6, 5.7±8.1, and 1.5±1.5), respectively. Prevalence ranged from 30% to 100%, mean intensity from 1.0 to 8.1 and mean abundance from 0.3 to 5.7. Monogenea, Digenea, Nematoda (Hysterothylacium sp. and Spirocamallanus sp.) and Acanthocephala (Neoechinorhynchus sp. and Polyacanthorhynchus sp.) were identified. The parasites Hysterothylacium sp. and Neoechinorhynchus sp. were the most prevalent parasites with 31.43% and 15.71%, respectively. The fish presented negative allometry in growth and constant condition factor. Measures to prevent and control the parasitic diseases diagnosed are discussed as well prophylactic practices that contribute to the biosecurity of the farms.","PeriodicalId":21270,"journal":{"name":"Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria","volume":"31 4","pages":"e012722"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9901866/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9079937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Soil contamination by Ancylostoma spp. and Toxocara spp. eggs in elementary school playgrounds in the extreme south of Brazil. 巴西最南部小学操场上钩虫和弓形虫虫卵对土壤的污染。

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2022-01-01 DOI: 10.1590/S1984-29612022003

Catia Cilene Santos de Mello, Leandro Quintana Nizoli, Alexsander Ferraz, Bruno Cabral Chagas, William James Domingues Azario, Sara Patron da Motta, Marcos Marreiro Villela

{"title":"Soil contamination by Ancylostoma spp. and Toxocara spp. eggs in elementary school playgrounds in the extreme south of Brazil.","authors":"Catia Cilene Santos de Mello, Leandro Quintana Nizoli, Alexsander Ferraz, Bruno Cabral Chagas, William James Domingues Azario, Sara Patron da Motta, Marcos Marreiro Villela","doi":"10.1590/S1984-29612022003","DOIUrl":"https://doi.org/10.1590/S1984-29612022003","url":null,"abstract":"Millions of people worldwide, and especially schoolchildren, may be infected by geohelminths due to their exposure to a contaminated environment. The aim of this study was to evaluate soil contamination by Ancylostoma spp. and Toxocara spp. eggs in recreation areas at elementary schools in Pelotas, state of Rio Grande do Sul, Brazil. Sand samples were collected from 22 schools and were processed using the centrifugal flotation method. Helminth eggs with zoonotic potential were found in 12 out of the 22 schools (54.5%). Contamination by Ancylostoma spp. and Toxocara spp. was observed in 36.4% (8/22) and 27.3% (6/22) of the soil samples collected at these schools, respectively. These findings of eggs show that the school communities are exposed to risks of zoonotic transmission.","PeriodicalId":21270,"journal":{"name":"Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria","volume":"31 1","pages":"e019121"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9901864/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9446987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Prevalence and risk factors of Eimeria spp. natural infection in sheep from northern Paraná, Brazil. 巴西巴拉那北部<e:1>绵羊艾美耳球虫自然感染流行及危险因素分析。

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2022-01-01 DOI: 10.1590/S1984-29612022004

Priscilla Gomes Carneiro, João Pedro Sasse, Ana Clécia Dos Santos Silva, Mércia de Seixas, Aline Ticiani Pereira Paschoal, Ana Flávia Minutti, Thais Agostinho Martins, Sérgio Tosi Cardim, Fernando de Souza Rodrigues, Luiz Daniel de Barros, João Luis Garcia

{"title":"Prevalence and risk factors of Eimeria spp. natural infection in sheep from northern Paraná, Brazil.","authors":"Priscilla Gomes Carneiro, João Pedro Sasse, Ana Clécia Dos Santos Silva, Mércia de Seixas, Aline Ticiani Pereira Paschoal, Ana Flávia Minutti, Thais Agostinho Martins, Sérgio Tosi Cardim, Fernando de Souza Rodrigues, Luiz Daniel de Barros, João Luis Garcia","doi":"10.1590/S1984-29612022004","DOIUrl":"https://doi.org/10.1590/S1984-29612022004","url":null,"abstract":"The present study aimed to perform an epidemiological and morphological identification of Eimeria infection in sheep in Brazil. Fecal samples from sheep were collected from 20 farms in northern Paraná, Brazil. An epidemiological questionnaire was used to evaluate the risk factors. Fecal samples containing oocysts per gram of feces (OoPG) ≥1000 were subjected to the modified Willis-Mollay method to perform oocyst identification. Sporulated oocysts were observed microscopically for morphological identification. A total of 807 fecal samples were collected. Based on the morphological characteristics of the sporulated oocysts, 10 species of Eimeria were identified, with main species observed: Eimeira ovinoidalis (98.1%), Eimeria crandallis (87.6%), Eimeria parva (79.1%), and Eimeria bakuensis (60.8%). Only 2.6% (7/268) of the sheep were infected with a single species, 4.8% (13/268) contained two different species, and 92.5% (248/268) were infected with three or more species. The analysis of risk factors showed that an intensive rearing, no rotation of pasture, dirt, and slatted floors, and age up to 12 months were associated with infection. This study showed a high prevalence of Eimeria natural infection in sheep from northern Paraná, Brazil. Furthermore, based on the risk factors, good management and hygiene practices must be employed to avoid infection.","PeriodicalId":21270,"journal":{"name":"Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria","volume":"31 1","pages":"e017421"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9901863/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9446990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Acaricidal effect of major compounds to control Rhipicephalus microplus (Canestrini, 1887) in dairy cows and possible alternatives for reversing multidrug resistance. 主要化合物控制奶牛微头虫(Canestrini, 1887)的杀螨效果及逆转多药耐药的可能替代方法。

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2022-01-01 DOI: 10.1590/S1984-29612022028

Carla Juliana Ribeiro Dolenga, Alan Dos Anjos, Victor Hugo Granza Barbosa, Ursula Yaeko Yoshitani, Prisciane Leme da Silva Piuci Castilho, Vanessa Issuzu Miyakawa, Marcelo Beltrão Molento

{"title":"Acaricidal effect of major compounds to control Rhipicephalus microplus (Canestrini, 1887) in dairy cows and possible alternatives for reversing multidrug resistance.","authors":"Carla Juliana Ribeiro Dolenga, Alan Dos Anjos, Victor Hugo Granza Barbosa, Ursula Yaeko Yoshitani, Prisciane Leme da Silva Piuci Castilho, Vanessa Issuzu Miyakawa, Marcelo Beltrão Molento","doi":"10.1590/S1984-29612022028","DOIUrl":"https://doi.org/10.1590/S1984-29612022028","url":null,"abstract":"Tick control represent a great challenge to animal health. The objective of this study was to evaluate the efficacy of acaricidal compounds against Rhipicephalus microplus from dairy cattle systems in Paraná State, Brazil. Six farms (PR1-PR6) were selected, where anti-tick products were applied at fixed intervals. Two other farms that adopted alternative protocols; target selective treatment (PRS), and individual-based agroecological protocol (PRA) were also included in the trial. Fully engorged R. microplus were collected for the in vitro adult immersion test (AIT), and the egg hatch test (EHT) in all eight populations. The larval packet test (LPT) was used on PR6 and PRA tick populations. The treatment groups were composed of G1: dichlorvos 45% plus cypermethrin 5%, G2: deltamethrin 2.5%, G3: cypermethrin 15%, chlorpyriphos 25%, plus citronellal 1%, and G4: amitraz 12.5%. The efficacy at PR1 to PR6 revealed that G3 and G4 achieved moderate to high efficacy, from 75.0 to 100.0% and 73 to 98%, respectively. In the LPT, the efficacy at PR6 was 76.0, 67.0, 93.0 and 30.6%, while PRA presented 100.0, 100.0, 100.0, and 54.0%, for G1, G2, G3 and G4, respectively. Sustainable parasite control strategies are discussed.","PeriodicalId":21270,"journal":{"name":"Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria","volume":"31 2","pages":"e005422"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9901876/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9447488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Anthelmintic efficacy of oxibendazole against gastrointestinal nematodes in swine. 氧苯达唑对猪胃肠线虫的驱虫效果。

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2022-01-01 DOI: 10.1590/S1984-29612022009

Rafael Paranhos de Mendonça, Daniela Oliveira Carneiro, Eliane Marucci Baccin, Márcia Richena Pirágine, Sara Menegatti Zoca, Luis Augusto Ferreira Rossa, Guilherme Cecílio Lima, Francismar Barbosa de Oliveira, Istanlei Soares Costa, Gabriel Nunes de Oliveira, Sabrina Nathália Louzada Nogueira, Thaís Rabelo Dos Santos-Doni

{"title":"Anthelmintic efficacy of oxibendazole against gastrointestinal nematodes in swine.","authors":"Rafael Paranhos de Mendonça, Daniela Oliveira Carneiro, Eliane Marucci Baccin, Márcia Richena Pirágine, Sara Menegatti Zoca, Luis Augusto Ferreira Rossa, Guilherme Cecílio Lima, Francismar Barbosa de Oliveira, Istanlei Soares Costa, Gabriel Nunes de Oliveira, Sabrina Nathália Louzada Nogueira, Thaís Rabelo Dos Santos-Doni","doi":"10.1590/S1984-29612022009","DOIUrl":"https://doi.org/10.1590/S1984-29612022009","url":null,"abstract":"In swine production, parasites, especially gastrointestinal helminths, generate considerable economic losses. Therefore, effective control measures, such as the use of the correct anthelmintics, are of paramount importance for maintaining profitability. The aim of the present study was to evaluate the efficacy of the anthelmintic oxibendazole, administered orally, in pigs (non-industrial) naturally infected with gastrointestinal nematodes. To that end, we selected 18 pigs naturally parasitized by gastrointestinal nematodes, as determined by examination of fecal samples (eggs per gram (EPG > 500) of feces), and divided them into two groups: treated (with a 10-day course of oxibendazole) and control (untreated). After the treatment period, the animals were euthanized. During necropsy, the helminths in the gastrointestinal tract were identified and quantified. The species identified were, in order of occurrence, Ascaris suum, Trichuris suis, Oesophagostomum dentatum, and Hyostrongylus rubidus. In Brazilian swine herds, traditional (non-industrial) production systems can favor the transmission of helminths. We found that treatment with oxibendazole was 100% effective against A. suum and H. rubidus, whereas it was 99.65% effective against O. dentatum and 99.20% effective against T. suis, significantly reducing helminth counts (P < 0.01 for all). We conclude that oxibendazole is effective in controlling the main helminths in swine.","PeriodicalId":21270,"journal":{"name":"Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria","volume":"31 1","pages":"e018321"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9901850/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10871926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Albendazole is effective for controlling monogenean parasites of the gills of Piaractus brachypomus (Serrasalmidae) and Megaleporinus macrocephalus (Anostomidae). 阿苯达唑对短肢棘足鼠(Serrasalmidae)和大头巨孢子虫(Anostomidae)鳃单系寄生虫有较好的防治效果。

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2022-01-01 DOI: 10.1590/S1984-29612022057

Luciano Pereira Negreiros, Eliane Xavier Souza, Tiago Araújo Lima, Marcos Tavares-Dias

{"title":"Albendazole is effective for controlling monogenean parasites of the gills of Piaractus brachypomus (Serrasalmidae) and Megaleporinus macrocephalus (Anostomidae).","authors":"Luciano Pereira Negreiros, Eliane Xavier Souza, Tiago Araújo Lima, Marcos Tavares-Dias","doi":"10.1590/S1984-29612022057","DOIUrl":"https://doi.org/10.1590/S1984-29612022057","url":null,"abstract":"Monogenean infestations can cause high mortality in farmed fish and therefore significant economic losses. The present study investigated the efficacy of albendazole in therapeutic baths against monogeneans of Piaractus brachypomus Cuvier, 1818 and Megaleporinus macrocephalus (Garavello & Britski, 1988). For both fish, a 24 hours therapeutic bath with albendazole concentrations of 150, 300 and 500 mg/L were tested against monogeneans from the gills. The baths had an efficacy from 61.4 ± 32.9 (95%CI=64.5) against monogeneans of P. brachypomus, and from 95.4 ± 5.6 (95%CI=10.9) against monogeneans of M. macrocephalus. In P. brachypomus, the hepatosomatic index (HSI) in fish exposed to 150 mg/L of albendazole was higher than in fish exposed to 300 mg/L. The splenosomatic index (SSI) values in fish exposed to 150 mg/L of albendazole were lower than in fish exposed to 300 mg/L. In M. macrocephalus, the HSI and SSI values decreased in treatments with 150, 300 and 500 mg/L of albendazole to control and treat infestations by monogeneans. For M. macrocephalus, 150 mg/L of albendazole can be used to control and treat infestations by monogeneans, while for P. brachypomus 500 mg/L of albendazole can be used in a 24 hours bath.","PeriodicalId":21270,"journal":{"name":"Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria","volume":"31 4","pages":"e010322"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9901879/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9081583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Litomosoides brasiliensis (Nematoda: Onchocercidae) infecting chiropterans in the Legal Amazon region, Brazil. 巴西亚马孙地区盘尾丝虫病(线虫:盘尾丝虫科)

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2022-01-01 DOI: 10.1590/S1984-29612022059

Thaliane França Costa, Danielle Jordany Barros Coutinho, Ana Karoline Sousa Mendes Simas, Gabriella Vieira Dos Santos, Rita de Maria Seabra Nogueira, Francisco Borges Costa, Maria Claudene Barros, Elmary da Costa Fraga, Andréa Pereira da Costa

{"title":"Litomosoides brasiliensis (Nematoda: Onchocercidae) infecting chiropterans in the Legal Amazon region, Brazil.","authors":"Thaliane França Costa, Danielle Jordany Barros Coutinho, Ana Karoline Sousa Mendes Simas, Gabriella Vieira Dos Santos, Rita de Maria Seabra Nogueira, Francisco Borges Costa, Maria Claudene Barros, Elmary da Costa Fraga, Andréa Pereira da Costa","doi":"10.1590/S1984-29612022059","DOIUrl":"https://doi.org/10.1590/S1984-29612022059","url":null,"abstract":"Chiropterans play an important role in the maintenance of the environmental balance, since they are pollinators, seed dispersers and predators. They contribute to transmission and spreading of microorganisms such as helminths, fungi, protozoa, bacteria and virus. The aim of the present study was to investigate natural filariid infection among bats in the Legal Amazon region, Brazil, by means of parasitological and molecular analyses. Blood samples were collected from 82 bats for blood smears and for DNA extraction via the polymerase chain reaction (PCR) assay. Microfilariae were observed in blood smears from Carollia perspicillata (2), Artibeus lituratus (1), Artibeus fimbriatus (2), Dermanura gnoma (2) and Glossophaga soricina (1). Five positive samples were detected through the PCR assay and four of these were also positive in blood smears. From genome sequencing and comparative analysis with sequences deposited in GenBank, one sample showed 99.31% similarity to the species Litomosoides brasiliensis. The present study expands the geographical distribution of L. brasiliensis, to include the state of Maranhão as an area of occurrence of this species and includes D. gnoma and A. fimbriatus as hosts in Brazil.","PeriodicalId":21270,"journal":{"name":"Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria","volume":"31 4","pages":"e011722"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9901862/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9072890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Absence of Trichinella spp. larvae in carcasses of road-killed wild animals in Paraná state, Brazil. 巴西帕拉纳<e:1>州公路死亡野生动物尸体中未发现旋毛虫幼虫。

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2022-01-01 DOI: 10.1590/S1984-29612022054

Rafaela Maria Boson Jurkevicz, Douglas Aparecido da Silva, José Maurício Ferreira Neto, Andressa Maria Rorato Nascimento de Matos, Bárbara Giglio Pires, Aline Ticiani Pereira Paschoal, Fernanda Pinto-Ferreira, Ana Paula Frederico Loureiro Bracarense, Regina Mitsuka-Breganó, Roberta Lemos Freire, Italmar Teodorico Navarro, Eloiza Teles Caldart

{"title":"Absence of Trichinella spp. larvae in carcasses of road-killed wild animals in Paraná state, Brazil.","authors":"Rafaela Maria Boson Jurkevicz, Douglas Aparecido da Silva, José Maurício Ferreira Neto, Andressa Maria Rorato Nascimento de Matos, Bárbara Giglio Pires, Aline Ticiani Pereira Paschoal, Fernanda Pinto-Ferreira, Ana Paula Frederico Loureiro Bracarense, Regina Mitsuka-Breganó, Roberta Lemos Freire, Italmar Teodorico Navarro, Eloiza Teles Caldart","doi":"10.1590/S1984-29612022054","DOIUrl":"https://doi.org/10.1590/S1984-29612022054","url":null,"abstract":"Trichinella spp. are zoonotic parasites that are widely distributed in warm-blooded carnivores and omnivores, including humans. Until the present moment, Brazil has been considered by World Animal Health Organization free from the domestic cycle of trichinellosis, whereas the parasite's sylvatic cycle has the status of infection in limited zones. However, neighboring countries such as Argentina have reports of parasite larvae in the wild fauna. The present study aimed to determine the occurrence of Trichinella spp. in road-killed wild animals in Paraná, Brazil. Biological samples from 71 wild animals-29 Didelphis albiventris, 11 Nasua nasua, ten Cerdocyon thous, seven Dasypus novemcinctus, six Leopardus guttulus, six Sphiggurus spinosus and two Puma concolor-collected from November 2016 to November 2021 were subjected to artificial digestion, following the methodology described in the REGULATION (EC) No. 2075/2005. No Trichinella spp. larvae were detected in the carcasses of the road-killed wild animals. However, considering the wide spectrum of possible reservoirs that could act as a link between the sylvatic and domestic cycles and considering the current Brazilian status of sylvatic trichinellosis in limited zones, frequent monitoring of wild fauna remains necessary.","PeriodicalId":21270,"journal":{"name":"Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria","volume":"31 4","pages":"e010622"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9901860/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9431631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0