Dietary inulin modulated the cortisol response and increased the protection against pathogens in juvenile pacu ( Piaractus mesopotamicus )

2021 ◽  
Author(s):  
Cristiane Meldau Campos ◽  
Fabio Sabaddin Zanuzzo ◽  
Rodrigo Yukihiro Gimbo ◽  
Gisele Cristina Favero ◽  
Michelly Pereira Soares ◽  
...  
Keyword(s):  
Cortisol Response ◽  
Piaractus Mesopotamicus

The Cortisol Response to Normal and Nocturnal Awakening

2000 ◽  
Vol 14 (1) ◽  
pp. 24-28 ◽  
Author(s):  
F. Hucklebridge ◽  
A. Clow ◽  
H. Rahman ◽  
P. Evans
Keyword(s):  
Area Under The Curve ◽  
Secretory Activity ◽  
Linear Increase ◽  
Cortisol Response ◽  
The Awakening ◽  
Basal Cortisol ◽  
Free Cortisol ◽  
Main Effect ◽  
Nocturnal Awakening ◽  
Night Awakening

Abstract Free cortisol as measured in saliva increases markedly following awakening. It is not clear, however, whether this is truly a stress-neuroendocrine response to awakening or a manifestation of the hypothalamic-pituitary-adrenal (HPA) circadian cycle. We investigated whether the awakening cortisol response can be generated in the middle of nocturnal sleep, when secretory activity in the HPA axis is low. In a within subject design, salivary cortisol response was measured under three different awakening conditions: (1) awakening at the normal morning awakening time; (2) awakening four hours prior to normal awakening time, and (3) awakening the following morning after interrupted sleep. The overall main effect was a linear increase in free cortisol following awakening with no significant interaction with awakening condition. Cortisol levels, as determined by area under the cortisol curve calculated with reference to zero, did differ by awakening condition. The two morning awakening conditions were comparable but values were lower for night awakening. Area under the curve change (calculated with reference to the first awakening cortisol base value), however, did not distinguish the three awakening conditions. We conclude from these data that there is a clear free cortisol response to awakening for both nocturnal and morning awakening although the absolute levels produced are lower for nocturnal awakening when basal cortisol is low. Nocturnal interruption of sleep did not affect the subsequent morning response.

Cortisol Response to Stressful Task and Time of Day

2002 ◽  
Author(s):  
Jacquelyn J. Graven ◽  
Tracy A. Manners ◽  
James O. Davis
Keyword(s):  
Time Of Day ◽  
Cortisol Response ◽  
Stressful Task

Modulation of immunity and hepatic antioxidant defense by corticosteroids in pacu (Piaractus mesopotamicus)

2021 ◽  
pp. 111025
Author(s):  
Iuri Moraes Neyrão ◽  
Jaqueline Dalbello Biller ◽  
Leonardo Susumu Takahashi ◽  
Elisabeth Criscuolo Urbinati
Keyword(s):  
Antioxidant Defense ◽  
Piaractus Mesopotamicus

Bovine plasma protein as an alternative protein source in extruded aquafeeds for Piaractus mesopotamicus (pacú) at two fattening stages

2019 ◽  
Vol 26 (2) ◽  
pp. 536-544
Author(s):  
Carla Bacchetta ◽  
Andrea S. Rossi ◽  
Raúl E. Cian ◽  
David R. Hernández ◽  
Sebastián Sánchez ◽  
...  
Keyword(s):  
Plasma Protein ◽  
Protein Source ◽  
Piaractus Mesopotamicus ◽  
Alternative Protein ◽  
Bovine Plasma

scholarly journals Childhood Adversities and Salivary Cortisol Responses to the Trier Social Stress Test: A Systematic Review of Studies Using the Children Trauma Questionnaire (CTQ)

2020 ◽  
Vol 18 (1) ◽  
pp. 29
Author(s):  
Chuk Ling Julian Lai ◽  
Daryl Yu Heng Lee ◽  
Monique On Yee Leung
Keyword(s):  
Salivary Cortisol ◽  
Social Stress ◽  
Stress Test ◽  
Trier Social Stress Test ◽  
Future Research ◽  
Cortisol Response ◽  
Childhood Adversities ◽  
Social Stressors ◽  
Childhood Trauma Questionnaire ◽  
Cortisol Responses

Alteration in cortisol response to acute social stressors has been hypothesized to mediate childhood adversities (CA) and increased morbidity in adulthood. However, the evidence supporting an association between CA and cortisol response to social stressors is inconclusive. The present review addressed this issue by reviewing the literature on CA and cortisol response to acute social stressors, with a focus on studies with adolescents or adults, using the Childhood Trauma Questionnaire (CTQ) to assess CA, and examining salivary cortisol response to the Trier Social Stress Test (TSST). Systematic searches of relevant articles in PsycINFO, PubMed, Web of Science and ScienceDirect in February and March 2020 identified 12 articles including 1196 participants with mean ages ranging from 15.3 to 52.3 yrs. across studies. CTQ scores were significantly associated with cortisol response in 2 studies. In addition, the physical abuse and emotional neglect subscales were associated with cortisol response respectively in 2 separate studies. The lack of association between CA and cortisol response calls for more longitudinal studies, and the use of formal records of maltreatment or informant reports in future research to complement information collected by retrospective measures. In addition, increased attention to biological mechanisms other than that associated with the regulation of cortisol in explaining the connection between CA and psychiatry morbidity is warranted.

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