Osteochondromatosis (multiple cartilaginous exostoses) in an immature killer whale Orcinus orca

Laeta, Maíra; Kompanje, Erwin J. O.; Watson, Alastair; Souza, Sheila Maria Ferraz Mendonça de; Dittmar, Katharina; Cuenca, Sandra; Hassel, Lucas B; Siciliano, Salvatore

doi:10.3354/dao03372

Cited by 4 publications

(4 citation statements)

References 15 publications

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“…Chondromatosis. Chondromatosis is a rare disease entailing non-malignant hyperplasia of cartilaginous tissue from the synovial membrane of the articular capsule, tendon sheaths, and bursas (46)(47)(48). It may affect one or a number of joints at a time -usually knees and elbows.…”

Section: Osteoarthritis (Polyarthritis Rheumatoidea)mentioning

confidence: 99%

“…One of the possible causes of cartilagineous exostoses proposed in human medicine is genetic -mutations of genes encoding Exostosin-1 (EXT1) and Exostosin-2 (EXT2) proteins (46,47). The possible causes of periarticular exostoses in cats proposed in some reports include nutrition, environmental factors, degenerative joint disease, obesity, as well as viral infections -feline leukaemia virus FeLV (47,50). Migrating chondrocytes colonise empty spaces between synoviocytes and, through metaplasia, form numerous chondromas -chaotically distributed clusters of chondral tissue.…”

Section: Osteoarthritis (Polyarthritis Rheumatoidea)mentioning

confidence: 99%

“…Pressure and irritation may result in local erosion of healthy cartilage (so-called "kissing lesions") ( 45) and development of secondary degenerative joint disease (48). It has been estimated that approximately 20% of osteochondral exostoses in cats have a tendency towards malignant transformation into chondrosarcoma and osteosarcoma (50,51) as well as fibrosarcoma (47). The treatment of osteochondromatosis entails surgical removal of chondral formations, where possible together with the fragments of metaplastically altered synovial membrane (48).…”

Section: Osteoarthritis (Polyarthritis Rheumatoidea)mentioning

confidence: 99%

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Structure and Pathologies of Articular Cartilage

Żylińska

Sobczyńska-Rak

Lisiecka

et al. 2021

In Vivo

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The aim of the review was to describe a complex microstructure and biomechanical properties of the articular cartilage as well as a current review of its pathologies encountered in veterinary practice. The articular cartilage with its unique features: complex microarchitecture, significant mechanical durability and elasticity, lacking blood, lymphatic vessels, and innervation, seems to stand in contradiction to the laws of biology. It can be involved in a vast majority of diseases, from osteoarthrosis as a result of natural aging process to more complex in nature like osteochondromatosis. The primary role of articular cartilage is to provide the surface for movement in any single joint in the body. Therefore, its diseases lead to physical impairment and deterioration of the quality of life. Treatment of articular cartilage poses a formidable challenge in both modern human and animal medicine.

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Section: Osteoarthritis (Polyarthritis Rheumatoidea)mentioning

confidence: 99%

Section: Osteoarthritis (Polyarthritis Rheumatoidea)mentioning

confidence: 99%

Section: Osteoarthritis (Polyarthritis Rheumatoidea)mentioning

confidence: 99%

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Structure and Pathologies of Articular Cartilage

Żylińska

Sobczyńska-Rak

Lisiecka

et al. 2021

In Vivo

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“…Their occurrence in coastal waters off southeastern Brazil was associated with upwellings conditions and prey availability (Siciliano et al, 1999) and records have increased in the last two decades as more search efforts were applied (Pinedo et al, 2002;Santos and Netto, 2005;Meirelles et al, 2009;Santos and Silva, 2009;Santos et al, 2010;Batista et al, 2012;Ott et al, 2017;Lodi and Tardin, 2018;Santos et al, 2019;Renault-Braga et al, 2019). Few specimens had been studied in detail since fresh strandings are rare (Lemos et al, 2013;Laeta et al, 2019;Groch et al, 2020) and Morin et al (2015) cite the stranding of an Antarctic killer whale type C in Brazil but without providing detailed information. The depredation by killer whales in the tuna longline fishery that operates from the north to south of Brazil to Uruguay indicates the regular presence of killer whales in offshore waters (Secchi and Vaske, 1998;Dalla Rosa and Secchi, 2007;Dantas, 2007;Passadore et al, 2012;Wedekin et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Movements and social behavior of killer whales (Orcinus orca) off the Brazilian coast

Athayde,

Cantor,

Cardoso

et al. 2023

Front. Mar. Sci.

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Killer whales (Orcinus orca) are cosmopolitan apex predators that occupy important ecological roles and show some variations in feeding and social habits in coastal and pelagic environments worldwide. Although they have been regularly reported along the Brazilian coastline, their natural history in these tropical and subtropical waters remains poorly understood. Here, we provide new information on group size, behavior, movements and the first assessment of their social structure in Brazilian coast. From 2005 to 2021, 57 new records of sightings were opportunistically observed with estimated group sizes ranging from 1 to 11 individuals (mean = 5.61; SD = 2.91), and 47 individuals were photo-identified—28% adult females, 19% adult males, 19% juveniles, 17% calves and 17% adults of unknown sex. Thirty-one individuals (66%) were sighted just once and sixteen (34%) were resighted more than once (resighting rate = 0.30 ± 0.30 SD). Killer whales were observed feeding on rays four times (two out of which on butterfly rays Gymnura altavela), twice on an unidentified fish school of fish, while attacks on marine mammals were recorded. Between 2020 and 2021, photo-identification results of 11 specific individuals revealed both long and short-distance movements from the southeastern and southern Brazilian coasts to the coast of Uruguay. Individuals seem to be resighted together over time, as suggested by the average half-weight association index (HWI = 0.29 ± 0.19 SD) and a permutation test rejecting the null hypothesis of random association (CVreal = 0.67 > CVmean = 0.01, pCV = 1.00), forming small groups of mixed age-sex that engage in both short- and long-term associations. These patterns suggest that they could form stable social units that also experience some degree of fission-fusion dynamics. While the nature of the opportunistic data hinders a definitive portrayal of the social structure of killer whales using the Brazilian coastal waters, these novel insights contribute to mapping the socio-ecology and behavioral diversity of one of the most widely distributed mammals.

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Deciphering the whale's secrets to have a long life

Lagunas‐Rangel

2021

Experimental Gerontology

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Osteochondromatosis (multiple cartilaginous exostoses) in an immature killer whale Orcinus orca

Cited by 4 publications

References 15 publications

Structure and Pathologies of Articular Cartilage

Structure and Pathologies of Articular Cartilage

Movements and social behavior of killer whales (Orcinus orca) off the Brazilian coast

Deciphering the whale's secrets to have a long life

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