Comparative neocortical neuromorphology in felids : African lion, African leopard, and cheetah
© 2019 Wiley Periodicals, Inc..
The present study examines cortical neuronal morphology in the African lion (Panthera leo leo), African leopard (Panthera pardus pardus), and cheetah (Acinonyx jubatus jubatus). Tissue samples were removed from prefrontal, primary motor, and primary visual cortices and investigated with a Golgi stain and computer-assisted morphometry to provide somatodendritic measures of 652 neurons. Although neurons in the African lion were insufficiently impregnated for accurate quantitative dendritic measurements, descriptions of neuronal morphologies were still possible. Qualitatively, the range of spiny and aspiny neurons across the three species was similar to those observed in other felids, with typical pyramidal neurons being the most prominent neuronal type. Quantitatively, somatodendritic measures of typical pyramidal neurons in the cheetah were generally larger than in the African leopard, despite similar brain sizes. A MARsplines analysis of dendritic measures correctly differentiated 87.4% of complete typical pyramidal neurons between the African leopard and cheetah. In addition, unbiased stereology was used to compare the soma size of typical pyramidal neurons (n = 2,238) across all three cortical regions and gigantopyramidal neurons (n = 1,189) in primary motor and primary visual cortices. Both morphological and stereological analyses indicated that primary motor gigantopyramidal neurons were exceptionally large across all three felids compared to other carnivores, possibly due to specializations related to the felid musculoskeletal systems. The large size of these neurons in the cheetah which, unlike lions and leopards, does not belong to the Panthera genus, suggests that exceptionally enlarged primary motor gigantopyramidal neurons evolved independently in these felid species.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2020 |
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| Erschienen: |
2020 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:528 |
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| Enthalten in: |
The Journal of comparative neurology - 528(2020), 8 vom: 02. Juni, Seite 1392-1422 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Nguyen, Vivian T [VerfasserIn] |
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| Links: |
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| Themen: |
Cerebral cortex |
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| Anmerkungen: |
Date Completed 20.10.2021 Date Revised 20.10.2021 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1002/cne.24823 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM303519215 |
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| 100 | 1 | |a Nguyen, Vivian T |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Comparative neocortical neuromorphology in felids |b African lion, African leopard, and cheetah |
| 264 | 1 | |c 2020 | |
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| 500 | |a Date Completed 20.10.2021 | ||
| 500 | |a Date Revised 20.10.2021 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a © 2019 Wiley Periodicals, Inc. | ||
| 520 | |a The present study examines cortical neuronal morphology in the African lion (Panthera leo leo), African leopard (Panthera pardus pardus), and cheetah (Acinonyx jubatus jubatus). Tissue samples were removed from prefrontal, primary motor, and primary visual cortices and investigated with a Golgi stain and computer-assisted morphometry to provide somatodendritic measures of 652 neurons. Although neurons in the African lion were insufficiently impregnated for accurate quantitative dendritic measurements, descriptions of neuronal morphologies were still possible. Qualitatively, the range of spiny and aspiny neurons across the three species was similar to those observed in other felids, with typical pyramidal neurons being the most prominent neuronal type. Quantitatively, somatodendritic measures of typical pyramidal neurons in the cheetah were generally larger than in the African leopard, despite similar brain sizes. A MARsplines analysis of dendritic measures correctly differentiated 87.4% of complete typical pyramidal neurons between the African leopard and cheetah. In addition, unbiased stereology was used to compare the soma size of typical pyramidal neurons (n = 2,238) across all three cortical regions and gigantopyramidal neurons (n = 1,189) in primary motor and primary visual cortices. Both morphological and stereological analyses indicated that primary motor gigantopyramidal neurons were exceptionally large across all three felids compared to other carnivores, possibly due to specializations related to the felid musculoskeletal systems. The large size of these neurons in the cheetah which, unlike lions and leopards, does not belong to the Panthera genus, suggests that exceptionally enlarged primary motor gigantopyramidal neurons evolved independently in these felid species | ||
| 650 | 4 | |a Comparative Study | |
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a Golgi stain | |
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| 650 | 4 | |a gigantopyramidal neuron | |
| 650 | 4 | |a pyramidal neuron | |
| 700 | 1 | |a Uchida, Riri |e verfasserin |4 aut | |
| 700 | 1 | |a Warling, Allysa |e verfasserin |4 aut | |
| 700 | 1 | |a Sloan, Lucy J |e verfasserin |4 aut | |
| 700 | 1 | |a Saviano, Mark S |e verfasserin |4 aut | |
| 700 | 1 | |a Wicinski, Bridget |e verfasserin |4 aut | |
| 700 | 1 | |a Hård, Therese |e verfasserin |4 aut | |
| 700 | 1 | |a Bertelsen, Mads F |e verfasserin |4 aut | |
| 700 | 1 | |a Stimpson, Cheryl D |e verfasserin |4 aut | |
| 700 | 1 | |a Bitterman, Kathleen |e verfasserin |4 aut | |
| 700 | 1 | |a Schall, Matthew |e verfasserin |4 aut | |
| 700 | 1 | |a Hof, Patrick R |e verfasserin |4 aut | |
| 700 | 1 | |a Sherwood, Chet C |e verfasserin |4 aut | |
| 700 | 1 | |a Manger, Paul R |e verfasserin |4 aut | |
| 700 | 1 | |a Spocter, Muhammad A |e verfasserin |4 aut | |
| 700 | 1 | |a Jacobs, Bob |e verfasserin |4 aut | |
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