Midline growth of the sphenoid bone in primates: A histological and microcomputed tomography study
Midline growth of the sphenoid bone in primates: A histological and microcomputed tomography study
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灵长类动物蝶骨的中线生长：组织学和显微计算机断层扫描研究
DOI：
10.1002/ajpa.24653
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Smith, Timothy D.
中科院分区：
文献类型：
--
作者：
Wood, Brody;Oladipupo, Lanre;Mano, Nanami;Taylor, Jane;Vinyard, Christopher J.;Cray, James;DeLeon, Valerie B.;Smith, Timothy D.
ObjectivesThe目的是扩大我们的知识的个体发育颅底软骨关节在灵长类动物.Materials和MethodsA横截面年龄样本的66例标本从四个阔鼻和三个strepsirrhine属进行了研究，使用显微计算机断层扫描，组织学和免疫组织化学。使用Amira软件对标本进行分割、重建和测量。采用标准化长轴回归法对腭、蝶骨前和蝶骨基长度相对于颅长的个体发育比例进行了研究。组织切片后，选定的标本进行了检查，使用免疫组化的抗体增殖细胞核antigen.ResultsOur结果支持的假设，在platyrrhines的prephenoid增长更迅速相比，strepsirrhines，但这项研究建立了这种增长的差异发生产前，大多数在prephenoseptal synchondrosis（PSept）。所有种属的蝶骨内和蝶枕软骨结合（ISS）均具有延长的通畅性（此处指的是没有任何跨越软骨结合的骨性桥接）。然而，免疫组化结果表明，生长仅在婴儿期迅速，有丝分裂活动在幼年期减慢。这些结果表明，platyrrhines和strepsirrhines不遵循在人类中看到的ISS早期融合的模式。此外，与人类相比，这些灵长类动物在PSept时具有更长的通畅性和生长。最后，研究结果表明，在哺乳动物和绢毛猴中，就像在人类中一样，软骨细胞增殖减缓或停止后，软骨结合在很长一段时间内仍保持软骨状态。根据这些结果，是时候重新评估相关过程了，例如大脑扩张时间的差异。
ObjectivesThe aim of the present study is to broaden our knowledge of the ontogeny of cranial base cartilaginous joints in primates.Materials and MethodsA cross‐sectional age sample of 66 specimens from four platyrrhine and three strepsirrhine genera were studied using microcomputed tomography, histology, and immunohistochemistry. Specimens were segmented, reconstructed, and measured using Amira software. Ontogenetic scaling of palatal, presphenoid, and basisphenoid length relative to cranial length was examined using standardized major axis regression. After histological sectioning, selected specimens were examined using immunohistochemistry of antibodies to proliferating cell nuclear antigen.ResultsOur results support the hypothesis that the presphenoid in platyrrhines grows more rapidly compared with strepsirrhines, but this study establishes that most or all of this growth discrepancy occurs prenatally, and mostly at the presphenoseptal synchondrosis (PSept). All species have prolonged patency (here meaning absence of any bony bridging across the synchondrosis) of the intrasphenoidal and spheno‐occipital synchondroses (ISS). However, immunohistochemical results suggest growth is only rapid throughout infancy, and mitotic activity is slowing during juvenile ages. The same is indicated for the PSept.DiscussionThese results demonstrate that platyrrhines and strepsirrhines do not follow the pattern of early fusion of ISS seen in humans. In addition, these primates have a more prolonged patency and growth at PSept compared with humans. Finally, results reveal that in bushbabies and tamarins, as in humans, synchondroses remain cartilaginous for a prolonged period after chondrocyte proliferation has slowed or ceased. In light of these results, it is time to reassess related processes, such as differences in timing of brain expansion.
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影响因子：
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作者：
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DOI：
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DOI：
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影响因子：
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作者：
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发表时间：
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期刊：
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