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

scholarly journals Adrenarche in bonobos (Pan paniscus): evidence from ontogenetic changes in urinary dehydroepiandrosterone-sulfate levels

2012 ◽  
Vol 214 (1) ◽  
pp. 55-65 ◽  
Author(s):  
Verena Behringer ◽  
Gottfried Hohmann ◽  
Jeroen M G Stevens ◽  
Anja Weltring ◽  
Tobias Deschner
Keyword(s):  
Social Behavior ◽  
Pan Paniscus ◽  
Dehydroepiandrosterone Sulfate ◽  
Evolutionary Origin ◽  
Behavioral Characteristics ◽  
Physiological Changes ◽  
Ontogenetic Changes ◽  
Behavioral Traits ◽  
Species Specific ◽  
Timing Of Onset

Adrenarche is characterized by the onset of adrenal secretions of increasing amounts of dehydroepiandrosterone-sulfate (DHEA-S). While the function of adrenarche remains a matter of speculation, evidence suggests that the morphological and physiological changes related to it are restricted to humans and closely related primates. Within the primate order, adrenarche has been described only in humans and chimpanzees, but bonobos, the sister species of chimpanzees, have not yet been studied regarding the early ontogenetic changes such as adrenarche. While bonobos and chimpanzees share many morphological and behavioral characteristics, they differ in a number of behavioral traits, and there is a growing interest in terms of the physiological differences that can be linked to species-specific patterns of social behavior. In this study, we measured urinary DHEA-S levels to determine whether bonobos experience physiological changes that are indicative of adrenarche. We measured DHEA-S in urine using ELISA and analyzed its levels in the samples from 53 bonobos aged 1–18 years. Our results show that bonobos experience an increase in DHEA-S levels after 5 years of age, which is comparable with the patterns observed in humans and chimpanzees. This indicates that bonobos do undergo adrenarche and that the timing of onset is similar to that of the two Pan species. The extraction procedures described in this report demonstrate the use of urine for monitoring ontogenetic changes in DHEA-S excretion. If applicable to other species, the technique would facilitate more research on the evolutionary origin of adrenarche and other developmental processes.

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

Brief description of prey selectivity and ontogenetic changes in the diet of the invasive lionfish Pterois volitans (Actinopterygii, Scorpaenidae) in the Mexican Caribbean

2018 ◽  
Author(s):  
Juan Carlos Villaseñor-Derbez
Keyword(s):  
Stomach Contents ◽  
Ontogenetic Change ◽  
Prey Selectivity ◽  
Ontogenetic Changes ◽  
Pterois Volitans ◽  
Mexican Caribbean ◽  
Invasive Lionfish

Stomach contents were analyzed from 109 individuals. A total of 4 Genera and 14 Species were identified. Crustaceans accounted for %N=67.39% , %IRI= 86.37% of the total identified taxa and Teleosts %N=32.61% (%IRI = 13.63%). An ontogenetic change was observed in P. volitans diet.

Allometric growth and ontogenetic changes in nucleic acids and digestive enzymes during the early life stage in fish species: A review

2017 ◽  
Vol 24 (3) ◽  
pp. 648 ◽  
Author(s):  
Yunlong ZHANG ◽  
Hailong ZHANG ◽  
Lingyu WANG ◽  
Beiyi GU ◽  
Qixue FAN
Keyword(s):  
Nucleic Acids ◽  
Fish Species ◽  
Early Life ◽  
Digestive Enzymes ◽  
Life Stage ◽  
Early Life Stage ◽  
Allometric Growth ◽  
Ontogenetic Changes

Ontogenetic Changes in the Respiration Coefficients of Grain Sorghum

Crop Science ◽  
1988 ◽  
Vol 28 (1) ◽  
pp. 111-113 ◽  
Author(s):  
Randal S. Stahl ◽  
J. McCree
Keyword(s):  
Grain Sorghum ◽  
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.

scholarly journals The Relationships of Dehydroepiandrosterone Sulfate, Erectile Function and General Psychological Health

2021 ◽  
Vol 9 (4) ◽  
pp. 100386
Author(s):  
Kanglai Li ◽  
Shangyan Liang ◽  
Yuyan Shi ◽  
Ying Zhou ◽  
Liping Xie ◽  
...  
Keyword(s):  
Psychological Health ◽  
Erectile Function ◽  
Dehydroepiandrosterone Sulfate

scholarly journals Chromosome Instability, Aging and Brain Diseases

Cells ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 1256
Author(s):  
Ivan Y. Iourov ◽  
Yuri B. Yurov ◽  
Svetlana G. Vorsanova ◽  
Sergei I. Kutsev
Keyword(s):  
Brain Aging ◽  
Chromosome Instability ◽  
Neuronal Cell Death ◽  
Neuronal Cell ◽  
Accelerated Aging ◽  
Brain Diseases ◽  
Aging Brain ◽  
Ontogenetic Changes ◽  
Health And Disease

Chromosome instability (CIN) has been repeatedly associated with aging and progeroid phenotypes. Moreover, brain-specific CIN seems to be an important element of pathogenic cascades leading to neurodegeneration in late adulthood. Alternatively, CIN and aneuploidy (chromosomal loss/gain) syndromes exhibit accelerated aging phenotypes. Molecularly, cellular senescence, which seems to be mediated by CIN and aneuploidy, is likely to contribute to brain aging in health and disease. However, there is no consensus about the occurrence of CIN in the aging brain. As a result, the role of CIN/somatic aneuploidy in normal and pathological brain aging is a matter of debate. Still, taking into account the effects of CIN on cellular homeostasis, the possibility of involvement in brain aging is highly likely. More importantly, the CIN contribution to neuronal cell death may be responsible for neurodegeneration and the aging-related deterioration of the brain. The loss of CIN-affected neurons probably underlies the contradiction between reports addressing ontogenetic changes of karyotypes within the aged brain. In future studies, the combination of single-cell visualization and whole-genome techniques with systems biology methods would certainly define the intrinsic role of CIN in the aging of the normal and diseased brain.

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