Pathological studies on skeletal muscle atrophy in common fish products from El-Jubail Province, Saudi Arabia

Abstract In this study, 10 fish species, Jayan flounder (Pseudorhombus javanicus); Oriental sole (Eurgglossa arientalis); Oange-spotted grouper (Epinephelus coioides); Blacktip trevally (Caranx heberi); Towbar seabream (Acanthopagrus bifascia); Smalltooth emperor (Lethrinus microdon); Spangled emper...

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Main Authors: Mustafa M. Ibrahim, Mahmoud A. Mahmoud
Format: Article
Language:English
Published: Nature Portfolio 2024-12-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-024-76880-2
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author Mustafa M. Ibrahim
Mahmoud A. Mahmoud
author_facet Mustafa M. Ibrahim
Mahmoud A. Mahmoud
author_sort Mustafa M. Ibrahim
collection DOAJ
description Abstract In this study, 10 fish species, Jayan flounder (Pseudorhombus javanicus); Oriental sole (Eurgglossa arientalis); Oange-spotted grouper (Epinephelus coioides); Blacktip trevally (Caranx heberi); Towbar seabream (Acanthopagrus bifascia); Smalltooth emperor (Lethrinus microdon); Spangled emperio (Lethrinus nebulous); Sharptooth hammer croaker (Johnius vogleri); Bigeye croaker (Pennahia anea) and Redspine thread bream (Nemipterus nemurus), were examined in El-Jubail province, Saudi Arabia, Arabian Gulf region over three years from 2017 to 2020. The examined fish species showed muscular atrophy in a total percent of 1.1%, but with variable percentages of affections in each species. The highest incidence (2.06%) was oberved in Spangled emperior (Lethrinus nebulous) while the lowest incidence (0.40%) was in Orange spotted grouper (Epinephelus coioides) and Smalltooth emperor (Lethrinus microdon). The affected fishes appeared with sunken eyes, severe emaciation, and prominent loss of skeletal muscle mass. During dissection, the muscular tissue in some examined species was rough while in others, it was edematous and gelatinous, and the internal organs of all fishes were atrophied. For routine histopathological examination, the tissue samples were fixed in 10% buffered neutral formalin. The examined tissue sections of the affected muscles showed variable degrees of histopathological changes depending on the species. Vacuolation of muscle fibers, Zenker’s necrosis and myophagia were common in some species, while melanophores aggregation, edema, and hemorrhages were the most commonly observed changes in others. This study focused on the impact of this myodegenerative disease on the marketability of these edible fish species. Further investigation is needed to understand the impact of genetic predisposition, environmental pollution and other etiological agents on the occurrence of this phenomenon in this location.
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spelling doaj-art-755e6423e51c4cd7b2893ab08e3aa1c02024-12-29T12:16:55ZengNature PortfolioScientific Reports2045-23222024-12-011411810.1038/s41598-024-76880-2Pathological studies on skeletal muscle atrophy in common fish products from El-Jubail Province, Saudi ArabiaMustafa M. Ibrahim0Mahmoud A. Mahmoud1Animal Health Research InstituteDepartment of Pathology, Faculty of Veterinary Medicine, Cairo UniversityAbstract In this study, 10 fish species, Jayan flounder (Pseudorhombus javanicus); Oriental sole (Eurgglossa arientalis); Oange-spotted grouper (Epinephelus coioides); Blacktip trevally (Caranx heberi); Towbar seabream (Acanthopagrus bifascia); Smalltooth emperor (Lethrinus microdon); Spangled emperio (Lethrinus nebulous); Sharptooth hammer croaker (Johnius vogleri); Bigeye croaker (Pennahia anea) and Redspine thread bream (Nemipterus nemurus), were examined in El-Jubail province, Saudi Arabia, Arabian Gulf region over three years from 2017 to 2020. The examined fish species showed muscular atrophy in a total percent of 1.1%, but with variable percentages of affections in each species. The highest incidence (2.06%) was oberved in Spangled emperior (Lethrinus nebulous) while the lowest incidence (0.40%) was in Orange spotted grouper (Epinephelus coioides) and Smalltooth emperor (Lethrinus microdon). The affected fishes appeared with sunken eyes, severe emaciation, and prominent loss of skeletal muscle mass. During dissection, the muscular tissue in some examined species was rough while in others, it was edematous and gelatinous, and the internal organs of all fishes were atrophied. For routine histopathological examination, the tissue samples were fixed in 10% buffered neutral formalin. The examined tissue sections of the affected muscles showed variable degrees of histopathological changes depending on the species. Vacuolation of muscle fibers, Zenker’s necrosis and myophagia were common in some species, while melanophores aggregation, edema, and hemorrhages were the most commonly observed changes in others. This study focused on the impact of this myodegenerative disease on the marketability of these edible fish species. Further investigation is needed to understand the impact of genetic predisposition, environmental pollution and other etiological agents on the occurrence of this phenomenon in this location.https://doi.org/10.1038/s41598-024-76880-2Muscular atrophyHistopathologyEdible fishArabian Gulf
spellingShingle Mustafa M. Ibrahim
Mahmoud A. Mahmoud
Pathological studies on skeletal muscle atrophy in common fish products from El-Jubail Province, Saudi Arabia
Scientific Reports
Muscular atrophy
Histopathology
Edible fish
Arabian Gulf
title Pathological studies on skeletal muscle atrophy in common fish products from El-Jubail Province, Saudi Arabia
title_full Pathological studies on skeletal muscle atrophy in common fish products from El-Jubail Province, Saudi Arabia
title_fullStr Pathological studies on skeletal muscle atrophy in common fish products from El-Jubail Province, Saudi Arabia
title_full_unstemmed Pathological studies on skeletal muscle atrophy in common fish products from El-Jubail Province, Saudi Arabia
title_short Pathological studies on skeletal muscle atrophy in common fish products from El-Jubail Province, Saudi Arabia
title_sort pathological studies on skeletal muscle atrophy in common fish products from el jubail province saudi arabia
topic Muscular atrophy
Histopathology
Edible fish
Arabian Gulf
url https://doi.org/10.1038/s41598-024-76880-2
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