{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,6]],"date-time":"2026-04-06T20:18:15Z","timestamp":1775506695749,"version":"3.50.1"},"reference-count":51,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2019,7,15]],"date-time":"2019-07-15T00:00:00Z","timestamp":1563148800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"Ministry of Science and Technology, Higher Education Professional Training of Mozambique","award":["05.01.2015"],"award-info":[{"award-number":["05.01.2015"]}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Fish Diseases"],"published-print":{"date-parts":[[2019,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The intestines of 154 <jats:italic>Clarias gariepinus<\/jats:italic> were examined of which 29 were naturally infected with <jats:italic>Masenia nkomatiensis<\/jats:italic>, and of these, seven (intensity ranging from 8 to 231) were examined for pathology. Destruction of the epithelium covering the villi, detachment of epithelial cells and parts of villi were observed. Excessive mucus secretion occurred in the vicinity of the worm and catarrh was observed, indicative of an inflammatory response. The number of mucous and mast cells was higher at the attachment site than at an area 5,000\u00a0\u00b5m away and in uninfected individuals, suggesting that the parasite triggered a localized innate immune response. The number of neutrophils, basophils and lymphocytes in infected tissue was not significantly different from uninfected tissue confirming that no acquired immune response was produced against the maseniid. The caecae in the anterior part of the parasites' intestine consisted of convoluted epithelium forming invaginations or \u201ccrypts.\u201d Contraction of the thick layer of circular muscle fibres of the caeca facilitates the movement of digested material. Observation of digested host cells and cell debris within the caecae provides further evidence that <jats:italic>M.\u00a0nkomatiensis<\/jats:italic> is consuming host cells.<\/jats:p>","DOI":"10.1111\/jfd.13055","type":"journal-article","created":{"date-parts":[[2019,7,16]],"date-time":"2019-07-16T05:50:04Z","timestamp":1563256204000},"page":"1341-1350","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Histopathological changes induced by the digenean intestinal parasite <i>Masenia nkomatiensis<\/i> Dumbo, Dos Santos, &amp; Avenant\u2010Oldewage, 2019 of the catfish <i>Clarias gariepinus<\/i> (Burchell) from Incomati Basin, Mozambique"],"prefix":"10.1111","volume":"42","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5787-3433","authenticated-orcid":false,"given":"Jos\u00e9 Chissiua","family":"Dumbo","sequence":"first","affiliation":[{"name":"Department of Zoology University of Johannesburg Johannesburg South Africa"},{"name":"Department of Biological Science, Faculty of Science Eduardo Mondlane University Maputo Mozambique"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8820-7679","authenticated-orcid":false,"given":"Annemari\u00e8","family":"Avenant\u2010Oldewage","sequence":"additional","affiliation":[{"name":"Department of Zoology University of Johannesburg Johannesburg South Africa"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2019,7,15]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.it.2018.04.002"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1079\/9780851990156.0702"},{"key":"e_1_2_9_4_1","first-page":"16","article-title":"Impact of some prevalent parasitic diseases on pathological alterations in African catfish (Clarias gariepinus) in Dakahlyia Governorate, Egypt","volume":"5","author":"Awadin W.","year":"2012","journal-title":"The Global Journal of Fisheries and Aquatic Research"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1590\/S0103-90162006000200002"},{"key":"e_1_2_9_6_1","volume-title":"Human parasitology","author":"Bogitsh B. 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