Journal of Parasitic Diseases最新文献

{"title":"A report on outbreak of <i>Amyloodinium ocellatum</i> infestation in broodstock of Java rabbitfish, <i>Siganus javus (Linnaeus</i>, <i>1766</i>).","authors":"R Vidya, Ramalingam Ananda Raja, Satheesha Avunje, Thangavelu Bhuvaneswari, Thangaraj Sathish Kumar, Radhakrishnan Aravind, Jesudhas Angel Jani Raymond, Kumaravel Paramashivam Kumaraguru Vasagam, Modem Poornima, Karingalakkandy Poochirian Jithendran","doi":"10.1007/s12639-024-01710-1","DOIUrl":"10.1007/s12639-024-01710-1","url":null,"abstract":"<p><p>Fish trade and aquaculture activities are considered the major causes of fish and shellfish disease spread and transfer. An outbreak of infectious nature in captive stock of Java rabbitfish (<i>Siganus javus</i>) in brackish water tanks was investigated. Microscopic examination revealed different stages of the parasitic dinoflagellate <i>Amyloodiniu</i>m in the gill filaments of moribund fish. Histopathological studies confirmed severe infestation with gill erosion and lamellar fusion. The geographical lineage of the isolate was determined through partial sequencing of the 18S ribosomal RNA gene. BLAST analysis of the 18SrRNA gene sequence determined the 100% identity to <i>Amyloodinium ocellatum</i> and clustered with other isolates reported from Italy, Israel, the United States, Portugal, and Japan in the phylogenetic tree. The salinity requirement of the isolate was assessed by incubating tomont stages at salinities ranging from 0 to 30 ‰. Salinities below 5 ‰ were shown to inactivate and degrade 90% of the tomonts within 14 days of incubation, whereas salinities above 10 ‰ supported the parasite life cycle and its development. Further, the susceptibility of Asian seabass (<i>Lates calcarifer</i>) to <i>A. ocellatum</i> was elucidated in a challenge study. The current study demonstrated the potential threat of parasitic translocation with fish movement, the salinity regimes for their development, molecular detection including its impact on other cultivable fish species.</p><p><strong>Supplementary information: </strong>The online version contains supplementary material available at 10.1007/s12639-024-01710-1.</p>","PeriodicalId":16664,"journal":{"name":"Journal of Parasitic Diseases","volume":"49 1","pages":"45-56"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11832999/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143458426","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}

{"title":"Intestinal parasites of domestic pigeons (<i>Columba livia Domestica</i>) in Egypt: update on the prevalence and species diversity.","authors":"Somaya Saleh, Rana Elseadawy, Mohamed Alaaeldein Elmorsy, Ahmed Essam, Ibrahim Abbas, El-Sayed El-Alfy","doi":"10.1007/s12639-024-01728-5","DOIUrl":"10.1007/s12639-024-01728-5","url":null,"abstract":"<p><p>Domestic pigeons are a significant protein source in Egypt, and are also used for racing, ornamentation, and exhibition. They are susceptible to various intestinal parasites, resulting in economic losses from disease and mortality, delayed growth, and reduced productivity. There is limited information available on intestinal parasitic infections in domestic pigeons in Egypt, and reports from some governorates, e.g., Dakahlia, are lacking. In the present study, intestines and faecal contents of 782 adult domestic pigeons (<i>Columba livia domestica</i>) were examined. These pigeons were clinically ill, i.e., had signs of emaciation, ruffled feathers, and general weakness, and were collected, over one year, from veterinary clinics as well as local bird markets in two Egyptian Nile Delta governorates; Dakahlia (<i>n</i> = 348) and Gharbia (<i>n</i> = 434). Overall, 23.53% of the tested pigeons were infected. Pigeons in Gharbia (28.57%) had a higher statistically significant (<i>p</i>-value < 0.001) prevalence than those in Dakahlia (17.24%). Four parasites were detected with statistically significant (<i>p</i>-value < 0.001) prevalence variations. <i>Eimeria</i> species was the most frequently detected (<i>n</i> = 136; 17.39%), and three species were identified; <i>Eimeria labbeana</i>-like (types A and B), <i>Eimeria columbarum</i>-like, and <i>Eimeria kapotei</i>-like oocysts. The roundworm <i>Ascaridia columbae</i> was detected in 85 (10.87%) pigeons, whereas the tapeworm <i>Raillietina echinobothrida</i> was detected in 24 (3.07%) pigeons. Eggs of <i>Capillaria</i> spp. were only detected in five pigeons (0.64%). Earlier reports on parasitic infections in pigeons from Egypt were reviewed. A brief taxonomic revision on oocysts of various <i>Eimeria</i> species was provided. Oocysts of several <i>Eimeria</i> species from pigeons display minimal differences, and have overlapping morphometrics, causing considerable confusion. Therefore, the classification of <i>Eimeria</i> species of Columbiformes should be thoroughly revised using both morphological and molecular data. This study emphasizes the importance of addressing pigeon parasites from a veterinary perspective in terms of proper diagnosis and control by providing essential data on intestinal parasitic infections in pigeons in Egypt based on current and published data aiming for decreased economic losses.</p>","PeriodicalId":16664,"journal":{"name":"Journal of Parasitic Diseases","volume":"49 1","pages":"130-141"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11832834/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143458473","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}

{"title":"In vitro molecular assessment of <i>Cryptosporidium parvum</i> parasitic load on human ileocecal adenocarcinoma cell culture after targeting by tavaborole (AN2690).","authors":"Abeer M A Mahgoub, Marwa Ahmed Gameil, Marwa Abdelgawad, Hanaa Wanas, Alshaimaa M R Hamed","doi":"10.1007/s12639-024-01729-4","DOIUrl":"10.1007/s12639-024-01729-4","url":null,"abstract":"<p><p>Cryptosporidiosis remains a main source of life-threatening diarrhea in young children and immunocompromised patients. The current approved treatment; Nitazoxanide decreases the duration of diarrhea in immunocompetent adults but is not effective in immunocompromised patients. Benzoxaboroles are synthesized boron-heterocyclic compounds that have recently reported promising anti-protozoal action against several protozoa including <i>Plasmodium</i>, <i>Leishmania</i> and <i>Toxoplasma</i> species, by inhibiting essential microbial enzymes. Tavaborole has been a medically approved benzoxaborole that showed a promising anti-protozoal activity by inhibiting leucyl-tRNA synthetase enzyme. The present work was a trial to find the potential efficacy of Tavaborole (AN2690) as a promising drug against <i>Cryptosporidium parvum</i>. The drug was compared to Nitazoxanide in an in vitro human ileocecal adenocarcinoma (HCT-8) culture model. Drug efficacy was evaluated by quantitative real time polymerase chain reaction (PCR). The molecular assessment revealed a statistically remarkable decrease in parasitic load under the effect of Tavaborole when compared to Nitazoxanide.</p>","PeriodicalId":16664,"journal":{"name":"Journal of Parasitic Diseases","volume":"49 1","pages":"84-92"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11833033/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143458468","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}

{"title":"Correction: Nematocidal activity of chitosan nanoparticles conjugated with albendazole against the enteral and parenteral phases of trichinosis in experimentally infected mice.","authors":"Abeer A Mahgoub, Ragaa A Shoeb, Mohamed Sherif Negm, Hassan M Ibrahim, Shaimaa H El-Sayed, Mona M Khater","doi":"10.1007/s12639-024-01726-7","DOIUrl":"https://doi.org/10.1007/s12639-024-01726-7","url":null,"abstract":"<p><p>[This corrects the article DOI: 10.1007/s12639-024-01648-4.].</p>","PeriodicalId":16664,"journal":{"name":"Journal of Parasitic Diseases","volume":"49 1","pages":"248"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11832838/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143458488","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}

{"title":"Distribution of urinary schistosomiasis and associated risk factors among school-age children in Kwara State, Nigeria.","authors":"Olufunke Adenike Opeyemi, Iyabo Adepeju Simon-Oke, Titus Adeniyi Olusi","doi":"10.1007/s12639-024-01745-4","DOIUrl":"10.1007/s12639-024-01745-4","url":null,"abstract":"<p><p>Schistosomiasis remains a public health concern in developing countries. This study assessed the current status of urinary schistosomiasis among school-age children in Kwara State, Nigeria. Of the 1,341 school-age pupils investigated, 277 (20.7%) were infected, with 26.84% from Kwara South, 18.83% from Kwara Central, and 14.29% from Kwara North. The overall geometric mean intensity and mean population egg density varied significantly across the senatorial districts (9.37 ± 2.66 versus 14.95 ± 16.41 eggs per 10mL of urine). Males (22.3%) were more infected than females (19%), while children aged > 15 and ≤ 5 years had the highest prevalence and intensity, respectively (37.5%; 12.18 ± 2.74 eggs per 10mL of urine). A binary logistic regression analysis indicated that the source of drinking water, duration of community-stay, and non-awareness of infection were not significant predictors of <i>Schistosoma haematobium</i> infection. All forms of water contact activities were associated with increased and significant (<i>p</i> < 0.01) odds of predicting <i>S</i>. <i>haematobium</i> infection, the most important being fishing [Odd Ratio (OR): 114.951, <i>p</i> < 0.001]. Daily, weekly, and monthly water contact frequency was insignificant in predicting the odds of <i>S. haematobium</i> infection. However, no history of previous drug treatment was a significant risk factor (OR: 2.092; <i>p</i> = 0.002). Urinary schistosomiasis is very much present among school-age children in Kwara State. Strengthening schistosomiasis surveillance systems to identify communities with no or long history of preventive chemotherapy and ensuring even distribution of these resources is critical to morbidity reduction and disease control.</p><p><strong>Supplementary information: </strong>The online version contains supplementary material available at 10.1007/s12639-024-01745-4.</p>","PeriodicalId":16664,"journal":{"name":"Journal of Parasitic Diseases","volume":"49 1","pages":"215-223"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11832959/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143458490","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}

{"title":"Investigating therapeutic efficacy of silymarin on intestinal and muscular phases of trichinellosis: an experimental study.","authors":"Walaa Ramadan Waly, Mousa Abdel Gawad Mousa Ismail, Marwa Ahmed Ghieth, Samah Sayed Abdel Gawad, Eman Sayed El-Wakil, Wegdan Mohamed Abd El Wahab, Marwa Mohamed Ahmed, Amr M A Mousa, Mona Ibrahim Ali","doi":"10.1007/s12639-024-01735-6","DOIUrl":"10.1007/s12639-024-01735-6","url":null,"abstract":"<p><p>Trichinellosis, one of the parasitic zoonoses, is treated with a benzimidazole derivative, primarily albendazole. However, this treatment has a lot of side effects and is not sufficiently effective in killing the encysted larvae. Silymarin, a polyphenolic flavonoid, has been proven to have anti-parasitic activities and various medical uses. The current study aimed to evaluate silymarin efficacy against intestinal and muscular phases of murine trichinellosis compared to the standard drug; albendazole. Forty-eight mice were divided into four discrete groups: healthy model; diseased model; silymarin treatment; and albendazole treatment. The assessment of therapy efficacy was conducted parasitologically through counting the adult worms and muscle larvae, histopathologically through examination of the intestinal and muscular tissues, and, immunohistochemically through muscular expression of the vascular endothelial growth factor. Both silymarin and albendazole-treated groups demonstrated a statistically significant decrease (<i>P</i> < 0.001) in the mean count of adult <i>Trichinella</i> and the encysted larvae when compared to the diseased model, with an improvement of intestinal and muscular inflammation, and degeneration of the encysted larvae in muscles. Also, vascular endothelial growth factor immunoreactivity was significantly reduced in both silymarin, and albendazole-treated groups compared to the diseased model. Silymarin recorded antiparasitic, anti-inflammatory, and antiangiogenic effects on experimental trichinellosis.</p>","PeriodicalId":16664,"journal":{"name":"Journal of Parasitic Diseases","volume":"49 1","pages":"111-120"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11833028/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143458474","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}

{"title":"<i>Cupressus sempervirens</i> recovers disturbance of normal male fertilization in <i>Schistosoma mansoni</i>-infected mice.","authors":"Khaled M M Koriem, Taghrid K A El-Gohary","doi":"10.1007/s12639-024-01730-x","DOIUrl":"10.1007/s12639-024-01730-x","url":null,"abstract":"<p><p>Schistosomiasis is a parasitic disease and it associated with erectile dysfunction and infertility while <i>Cupressus sempervirens</i> possesses anti-oxidant properties. This study evaluates <i>Cupressus sempervirens</i> to protect the male fertility, and to preserve sperm quality in <i>Schistosoma mansoni</i> (<i>S. mansoni</i>)-infected mice. A 36 male albino mice of six equal sets were used in the study each with 6 mice; Control, cupressuflavone (200 mg/kg), and <i>Cupressus sempervirens</i> (<i>C. sempervirens</i>) (80 mg/kg), <i>S. mansoni</i> <b>-</b>infected mice, cupressuflavone (200 mg/kg) <b>+</b> <i>S. mansoni</i> <b>-</b>infected mice, and <i>C. sempervirens</i> (80 mg/kg) <b>+</b> <i>S. mansoni</i> <b>-</b>infected mice for 4 weeks. Serum testosterone, luteinizing hormone, follicle stimulating hormone, dehydroepiandrosterone sulfate, and Sex hormone binding globulin were determined. Glucose-6-phosphate dehydrogenase, 3β-hydroxysteroid dehydrogenase, total protein, and cholesterol in testis were detected. Antioxidants and sodium/potassium-ATPase in the hypothalamus, testis, and sperm were identified. Sperm counts, motility, and abnormality, as well as, sperm monoclonal proliferating antibody Ki-67 were evaluated. The results revealed that <i>S. mansoni</i> decreased superoxide dismutase, glutathione, serum testosterone and dehydroepiandrosterone sulfate, sperm count and motility, sodium/potassium-ATPase activity while increased malondialdehyde, serum follicle stimulating hormone, sex hormone binding globulin, and luteinizing hormone, glucose-6-phosphatedehydrogenase, 3β-hydroxysteroid dehydrogenase, cholesterol, total protein, sperm abnormality, the percentage of spermatogonia, 1st spermatocyte, 2nd spermatocyte, and spermatid in the testis. Also, <i>C. sempervirens</i> and cupressuflavone oral administration to <i>S. mansoni</i>-infected group back all of the aforementioned parameters to be close control values where <i>C. sempervirens</i> had an efficient impact than cupressuflavone did. In conclusion, <i>C. sempervirens</i> sustains testosterone cycle and sperm quality in <i>S. mansonii</i>-related testicular dysfunction.</p>","PeriodicalId":16664,"journal":{"name":"Journal of Parasitic Diseases","volume":"49 1","pages":"149-161"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11832875/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143458481","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}

{"title":"A potential therapeutic effect of sea cucumber <i>Holothuria polii</i> extract during the intestinal phase of experimental trichinellosis.","authors":"Salwa A El-Saidy, Asmaa S El-Feki, Gihan M El-Khodary, Amal A A Hassan, Dina I Elgendy, Yasmeen M Gawaan","doi":"10.1007/s12639-024-01737-4","DOIUrl":"10.1007/s12639-024-01737-4","url":null,"abstract":"<p><p>Trichinellosis is a severe parasitic disease transmitted by food, specifically caused by <i>Trichinella spiralis</i>, which exhibits great clinical importance worldwide. Albendazole (ABZ) is the main clinical treatment for trichinellosis but has some adverse effects and drug resistance. Sea cucumber <i>Holothuria polii</i> is an essential source of beneficial therapeutic metabolites. Hence, the purpose of the present study was to explore the potential therapeutic effectiveness of <i>H. polii</i> extract (HPE) during the intestinal phase of trichinellosis and the possibility of using it as a supplement to ABZ. For this purpose, mice were divided into a control group and four <i>T. spiralis</i>-infected groups: infected untreated, infected and ABZ-treated, infected and HPE-treated, and infected and combined therapy-treated groups. The treatment with the combined therapy decreased parasitic load by 96.76%, caused deleterious effects on the adult worm cuticle, improved jejunum histological architecture, diminished intestinal inflammatory cytokines, and decreased oxidative damage compared with the infected untreated group and ABZ-treated group. The ameliorating effect of HPE could be due to its total antioxidant capacity content and the presence of natural anti-inflammatory and antioxidant agents like saponins, phenolics, alkaloids, and flavonoids. In conclusion, HPE has a multifaceted, effective impact on trichinellosis and can be considered an ABZ-promising complementary treatment.</p>","PeriodicalId":16664,"journal":{"name":"Journal of Parasitic Diseases","volume":"49 1","pages":"224-241"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11832982/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143458484","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}

{"title":"Impact of -20 C° cryopreservation on serum factors from schistosomiasis patients at different storage durations: insights into serum bio-banking.","authors":"Azza Ibrahim Aladawy, Mostafa Elnakib, Mohamed Abdel Fattah, Ahmed Gad Taha, Enas Aly El Saftawy","doi":"10.1007/s12639-024-01734-7","DOIUrl":"10.1007/s12639-024-01734-7","url":null,"abstract":"<p><p>It is indefinite for research applications if prolonged freeze-stored serum from <i>Schistosoma</i>-infected patients is useful. We assessed - 20 °C freezing as a rapid and inexpensive method. A longitudinal cohort study with staggered follow-up periods evaluated the impact of cryopreservation on serum residues from 24 <i>Schistosoma</i>-infected Egyptian patients. Fresh serums were collected in March 2022 and assessed by the indirect haemagglutination test for <i>Schistosoma</i> immunoglobulin titrations and calorimetric assays for ALT, AST, total serum protein, Na⁺, K⁺, Ca⁺⁺, and Mg⁺⁺ (baseline values). Sera were then frozen and categorized into 4 groups (6 patients each) according to freezing duration; 3 months (group-1), 6 months (group-2), 9 months (group-3), and 12 months (group-4). Re-evaluation was performed on the <i>Schistosoma</i> immunoglobulin recovery rates and all other serum chemical factors. Baseline assessment showed increased mean values of <i>Schistosoma</i> immunoglobulins, ALT, AST, and proteins; yet, Ca⁺⁺, Na⁺, and K⁺ were reduced. Mg⁺⁺ showed normal values. Compared with the baselines, - 20 °C freezing showed significant deviations and increased percentage change in <i>Schistosoma</i> immunoglobulin titers, ALT, AST, K⁺, and Na⁺ at different time intervals of archiving (p-value ≤ 0.05). Evaluating serum factors interactions post-thawing revealed that AST correlated positively with ALT and Mg⁺⁺ sera levels whereas Ca⁺⁺ negatively correlated with Na⁺ and <i>Schistosoma</i> antibody titer. Analyzing baselines revealed that the parasite alters levels of immunoglobulin, ALT, AST, proteins, Ca⁺⁺, Na⁺, and K⁺. - 20 °C cryopreservation did not guarantee the stability of all tK⁺hese serum parameters. In addition, some serum factors appeared to interact together. Assessing the efficacy of - 20 °C freezing on the next-generation sequencing is recommended.</p>","PeriodicalId":16664,"journal":{"name":"Journal of Parasitic Diseases","volume":"49 1","pages":"162-172"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11832841/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143458512","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}

{"title":"Insights into the prevalence and diagnosis of feline otoacariasis in Egypt.","authors":"Khaled Mohamed El-Dakhly, Mohamed Ahmed Bakry, Mohamed Mahmoud Abdel-Rahim, Waleed M Arafa, Hend Ibrahim Mohamed","doi":"10.1007/s12639-024-01746-3","DOIUrl":"10.1007/s12639-024-01746-3","url":null,"abstract":"<p><p>The ear mite, <i>Otodectes cynotis</i> Hering, 1838 (Family: Psoroptidae) is the common cause of a worldwide parasitic infestation in cats, feline otoacariasis. The current study aimed to detect the occurrence of <i>Otodectes cynotis</i> in owned cats of various breeds in Cairo, Giza and Beni-Suef provinces, Egypt. Risk factors including age, sex, breed and seasons were considered. Questionnaire of cat owners was done. Mites were collected from cats and underwent laboratory investigations for further identification. Conventional PCR was done using specific primers targeting mtDNA CO1 and the revealed mite sequences genetically compared to those recorded in GenBank using phylogenetic analysis. The overall prevalence of mites was 25.47% (174/683). Clinically, various degrees of clinical signs were exhibited; mostly, brownish granular/waxy ear discharge, pruritis head rubbing, erythematous dermatitis and unilateral ear scratching. The recovered mites were microscopically identified. Adult males, females as well as developmental stages, including eggs, protonymphs and deuto-/tritonymphs, were recognized. Specific diagnostic PCR band revealed at 655 bp. Phylogenetically, the recovered mite species was closely related to similar species recorded in GenBank. The mite was predominant in the ear canal of infested cats. Among risk factors, it has been found that age, seasons and breed significantly influenced the prevalence of <i>Otodectes cynotis</i>. On the other hand, no statistical significance relative to the sex was obtained. Based on the revealed criteria, it has been found that the recovered mite was <i>Otodectes cynotis</i>. Further investigations are needed for control programming in terms of hygiene.</p>","PeriodicalId":16664,"journal":{"name":"Journal of Parasitic Diseases","volume":"49 1","pages":"193-206"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11832832/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143458471","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}