来自巴西热带地区第四纪的新古病理学发现扩大了南美巨型动物关节疾病的分布

IF 1.3 3区 地球科学 Q3 PALEONTOLOGY International Journal of Paleopathology Pub Date : 2023-09-15 DOI:10.1016/j.ijpp.2023.08.002
Rodolfo C. da Silva , Fernando H. de S. Barbosa , Kleberson de O. Porpino
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引用次数: 0

摘要

目的评价巴西热带地区(BIR)化石的病理变化,扩大先前报道的南美第四纪巨型动物代表动物的疾病记录,包括以前未研究过的分类群。材料和方法我们对15个属于BIR第四纪巨型动物代表的未发表标本进行了全面的宏观分析,以确定病理改变的证据。结果变异包括:弓形虫科、大蠓科和月桂蠓;软骨下骨粗糙、骨过度生长和骨侵蚀;马科和月桂科的裂隙状软骨下凹陷;以及齿牙科的三角形多孔病变。结论所发现的变异可识别弓形虫科骨关节炎的首次病例和马科关节凹陷的病例,以及月桂毛螨这两种疾病的新病例;髓齿科夹层性骨软骨炎1例我们的研究结果提供了额外的证据,证明焦磷酸钙沉积病在南美巨型动物物种中广泛传播,并表明解剖性骨软骨炎可能在地懒中相对常见。由于所发现的证据不明确,且检查标本数量有限,因此对月牙鼠焦磷酸钙沉积和脊椎关节病的鉴定还很不确定。
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New paleopathological findings from the Quaternary of the Brazilian Intertropical Region expand the distribution of joint diseases for the South American megafauna

Objective

To evaluate pathological changes in fossils from the Brazilian Intertropical Region (BIR), expanding the records of previously reported diseases for representatives of the Quaternary South American megafauna, including taxa not studied in previous works.

Materials and methods

We carried out a thorough macroscopic analysis of fifteen unpublished specimens belonging to representatives of the Quaternary megafauna of BIR to identify evidence of pathological alterations.

Results

Alterations included: osteophytes in Toxodontidae, Megatheridae and E. laurillardi; rough subchondral bone, bone overgrowth and bone erosion in E. laurillardi; slit-shaped subchondral depressions in Equidae and E. laurillardi; and a triangular-shaped porous lesion in Mylodontidae.

Conclusions

The alterations found allowed the recognition of the first cases of osteoarthritis for Toxodontidae and articular depressions for Equidae, and new cases of both diseases in Eremotherium laurillardi; a new case of osteochondritis dissecans for Mylodontidae; potential new cases of calcium pyrophosphate deposition and spondyloarthropathy for E. laurillardi

Significance

Our results provide additional evidence that calcium pyrophosphate deposition disease was widely spread among species of the South American megafauna and suggest that osteochondritis dissecans may have been relatively common among ground sloths.

Limitations

The identification of calcium pyrophosphate deposition and spondyloarthropathy in E. laurillardi are quite tentative because the evidence found is ambiguous and the number of examined specimens is limited.

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来源期刊
CiteScore
2.90
自引率
25.00%
发文量
43
期刊介绍: Paleopathology is the study and application of methods and techniques for investigating diseases and related conditions from skeletal and soft tissue remains. The International Journal of Paleopathology (IJPP) will publish original and significant articles on human and animal (including hominids) disease, based upon the study of physical remains, including osseous, dental, and preserved soft tissues at a range of methodological levels, from direct observation to molecular, chemical, histological and radiographic analysis. Discussion of ways in which these methods can be applied to the reconstruction of health, disease and life histories in the past is central to the discipline, so the journal would also encourage papers covering interpretive and theoretical issues, and those that place the study of disease at the centre of a bioarchaeological or biocultural approach. Papers dealing with historical evidence relating to disease in the past (rather than history of medicine) will also be published. The journal will also accept significant studies that applied previously developed techniques to new materials, setting the research in the context of current debates on past human and animal health.
期刊最新文献
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