Validation of a Dehydroepiandrosterone-Sulfate Assay in Three Platyrrhine Primates (Alouatta caraya, Aotus azarae infulatus, and Sapajus apella)

2021 ◽  
Author(s):  
Gessiane Pereira da Silva ◽  
Josi Teixeira de Melo ◽  
Frederico Ozanan Barros Monteiro ◽  
Ana Karolyna Pereira Ferreira ◽  
Liliane Almeida Carneiro ◽  
...  
Keyword(s):  
Dehydroepiandrosterone Sulfate ◽  
Alouatta Caraya ◽  
Sapajus Apella ◽  
Aotus Azarae

Number and topography of cones, rods and optic nerve axons in New and Old World primates

2008 ◽  
Vol 25 (3) ◽  
pp. 289-299 ◽  
Author(s):  
BARBARA L. FINLAY ◽  
EDNA CRISTINA S. FRANCO ◽  
ELIZABETH S. YAMADA ◽  
JUSTIN C. CROWLEY ◽  
MICHAEL PARSONS ◽  
...  
Keyword(s):  
Optic Nerve ◽  
Cell Types ◽  
Cell Number ◽  
Howler Monkey ◽  
Retinal Cell ◽  
Alouatta Caraya ◽  
New World Primates ◽  
Old World ◽  
Conserved Sequence ◽  
Aotus Azarae

To better understand the evolution of spatial and color vision, the number and spatial distributions of cones, rods, and optic nerve axon numbers were assessed in seven New World primates (Cebus apella, Saimiri ustius, Saguinus midas niger, Alouatta caraya, Aotus azarae, Calllithrix jacchus, and Callicebus moloch). The spatial distribution and number of rods and cones was determined from counts of retinal whole mounts. Optic axon number was determined from optic nerve sections by electron microscopy. These data were amassed with existing data on retinal cell number and distribution in Old World primates, and the scaling of relative densities and numbers with respect to retinal area, eye and brain sizes, and foveal specializations were evaluated. Regular scaling of all cell types was observed, with the exceptionally large, rod-enriched retina of the nocturnal owl monkey Aotus azarae, and the unusually high cone density of the fovea of the trichromatic howler monkey Alouatta caraya presenting interesting variations on this basic plan. Over all species, the lawful scaling of rods, cones, and retinal ganglion cell number is hypothesized to result from a conserved sequence of cell generation that defends retinal acuity and sensitivity over a large range of eye sizes.

Chromosome comparison among five species of platyrrhini (Alouatta caraya, Aotus azarae, Callithrix jacchus, Cebus apella, andSaimiri sciureus)

Primates ◽  
1990 ◽  
Vol 31 (3) ◽  
pp. 415-420 ◽  
Author(s):  
M. D. Mudry ◽  
I. Slavutsky ◽  
M. Labal de Vinuesa
Keyword(s):  
Cebus Apella ◽  
Callithrix Jacchus ◽  
Alouatta Caraya ◽  
Aotus Azarae

An association between heart rate variability and serum cortisol, dehydroepiandrosterone-sulfate, as an index of stress status and adrenal insufficiency

2019 ◽  
Vol 2 ◽  
pp. 28-34
Author(s):  
Jin-Kyung Park ◽  
Jong-Seok Kim ◽  
Eun-kyung Suh ◽  
Yun-Kyung Lee ◽  
Yong-Jae Lee ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Adrenal Insufficiency ◽  
Serum Cortisol ◽  
Dehydroepiandrosterone Sulfate

Ontogenetic Changes in Osmatic Resistance of Erythrocytes Indicators and in Level of Dehydroepiandrosterone-Sulfate in the Serum of Rats’ Blood

2017 ◽  
Vol 2 (3) ◽  
pp. 194-200
Author(s):  
V. V. Mizin ◽  
◽  
V. P. Lyashenko ◽  
S. M. Lukashov ◽  
◽  
...  
Keyword(s):  
Dehydroepiandrosterone Sulfate ◽  
Ontogenetic Changes

Premature Adrenarche and its Association with Cardiovascular Risk in Females

2020 ◽  
Vol 26 (43) ◽  
pp. 5609-5616
Author(s):  
Sarantis Livadas ◽  
Christina Bothou ◽  
Djuro Macut
Keyword(s):  
Polycystic Ovary ◽  
Dehydroepiandrosterone Sulfate ◽  
Adrenal Androgen ◽  
Premature Adrenarche ◽  
Adrenal Hyperandrogenism ◽  
Long Term Follow Up ◽  
History Of ◽  
Hormonal Milieu ◽  
The Impact

Early activation of the adrenal zona reticularis, leading to adrenal androgen secretion, mainly dehydroepiandrosterone sulfate (DHEAS), is called premature adrenarche (PA). The fact that adrenal hyperandrogenism in females has been linked to a cluster of cardiovascular (CV) risk factors, even in prepubertal children, warrants investigation. Controversial results have been obtained in this field, probably due to genetic, constitutional, and environmental factors or differences in the characteristics of participants. In an attempt to understand, in depth, the impact of PA as a potential activator of CV risk, we critically present available data stratified according to pubertal status. It seems that prepubertally, CV risk is increased in these girls, but is somewhat attenuated during their second decade of life. Furthermore, different entities associated with PA, such as polycystic ovary syndrome, non-classical congenital adrenal hyperplasia, heterozygosity of CYP21A2 mutations, and the impact of DHEAS on CV risk, are reviewed. At present, firm and definitive conclusions cannot be drawn. However, it may be speculated that girls with a history of PA display a hyperandrogenic hormonal milieu that may lead to increased CV risk. Accordingly, appropriate long-term follow-up and early intervention employing a patient-oriented approach are recommended.

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