Orexinergic neuron numbers in three species of African mole rats with rhythmic and arrhythmic chronotypes
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چکیده
منابع مشابه
Orexinergic neuron numbers in three species of African mole rats with rhythmic and arrhythmic chronotypes.
In the present study, orexinergic cell bodies within the brains of rhythmic and arrhythmic circadian chronotypes from three species of African mole rat (Highveld mole rat-Cryptomys hottentotus pretoriae, Ansell's mole rat--Fukomys anselli and the Damaraland mole rat--Fukomys damarensis) were identified using immunohistochemistry for orexin-A. Immunopositive orexinergic (Orx+) cell bodies were s...
متن کاملSleep and wake in rhythmic versus arrhythmic chronotypes of a microphthalmic species of African mole rat (Fukomys mechowii).
The giant Zambian mole rat (Fukomys mechowii) is a subterranean Afrotropical rodent noted for its regressed visual system and unusual patterns of circadian rhythmicity--within this species some individuals exhibit distinct regular circadian patterns of locomotor activity while others have arrhythmic circadian patterns. The current study was aimed at understanding whether differences in circadia...
متن کاملDistribution of orexinergic neurons and their terminal networks in the brains of two species of African mole rats.
The distribution of orexinergic cell bodies and terminal networks within the brains of two species of African mole rat (Cape-dune mole rat--Bathyergus suillus and highveld mole rat--Cryptomys hottentotus) were identified using immunohistochemistry for orexin-A. The aim of the study was to investigate possible differences in the nuclear complement and terminal distribution of this system by comp...
متن کاملSociality in African mole-rats
Nigel Bennett Dept of Zoology and Entomology, University of Pretoria, Pretoria 0002, South Africa. A characteristic of COOPERATIVELY BREEDING mammals (see Glossary), where individuals other than the parents help care for offspring, is that reproduction is partitioned unequally among members of the social group (REPRODUCTIVE SKEW), with socially dominant individuals monopolizing breeding opportu...
متن کاملCircadian rhythms of locomotor activity in solitary and social species of African mole-rats (family: Bathyergidae).
Mole-rats are strictly subterranean and hardly, if ever, come into contact with external light. As a result, their classical visual system is severely regressed and the circadian system proportionally expanded. The family Bathyergidae presents a unique opportunity to study the circadian system in the absence of the classical visual system in a range of species. Daily patterns of activity were s...
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ژورنال
عنوان ژورنال: Neuroscience
سال: 2011
ISSN: 0306-4522
DOI: 10.1016/j.neuroscience.2011.10.023