scholarly journals The Effect of Body Region on Hair Cortisol Concentration in Common Marmosets (Callithrix jacchus)

2021 ◽  
Author(s):  
Evelyn E Bartling-John ◽  
Kimberley A Phillips
Keyword(s):  
Callithrix Jacchus ◽  
Cortisol Concentration ◽  
The Body ◽  
Body Region ◽  
Research Model ◽  
Hair Cortisol ◽  
Social Stimuli ◽  
Common Marmosets ◽  
Hpa Axis Activity

Common marmosets (Callithrix jacchus) are a valuable research model for the study of neuroscience and the biologicimpact of aging due to their adaptivity, physiologic characteristics, and ease of handling for experimental manipulations. Quantification of cortisol in hair provides a noninvasive, retrospective biomarker of hypothalamics-pituitary-adrenal (HPA)axis activity and information on animal wellbeing, including responses to environmental and social stimuli. To obtain valid and reliable measurements of long-term HPA activity, we investigated the variability of cortisol concentration in the hair depending on the body region of marmosets. Hair was collected from the back and tail of 9 adult common marmosets during annual health screenings (male n = 3; female n = 6) and these samples were analyzed for cortisol via methanol extraction and enzyme immunoassay. We found that hair cortisol concentration differed between the tail and back regions, with the tail samples having a significantly higher cortisol concentration. These results indicate intraindividual and interindividual comparisons of hair cortisol concentration should use hair obtained from the same body region in marmosets.

scholarly journals Quantification of hair cortisol concentration in common marmosets (Callithrix jacchus ) and tufted capuchins (Cebus apella )

2018 ◽  
Vol 80 (7) ◽  
pp. e22879 ◽  
Author(s):  
Kimberley A. Phillips ◽  
Alyson N. Tukan ◽  
Anna D. Rigodanzo ◽  
Ryan T. Reusch ◽  
Kathleen M. Brasky ◽  
...  
Keyword(s):  
Cebus Apella ◽  
Callithrix Jacchus ◽  
Cortisol Concentration ◽  
Hair Cortisol ◽  
Common Marmosets ◽  
Tufted Capuchins

Hair cortisol concentration as a noninvasive measure of long-term stress in free-ranging grizzly bears (Ursus arctos): considerations with implications for other wildlife

2010 ◽  
Vol 88 (10) ◽  
pp. 935-949 ◽  
Author(s):  
B. J. Macbeth ◽  
M.R.L. Cattet ◽  
G. B. Stenhouse ◽  
M. L. Gibeau ◽  
D. M. Janz
Keyword(s):  
Landscape Change ◽  
Ursus Arctos ◽  
Physiological Stress ◽  
Hair Shaft ◽  
Cortisol Concentration ◽  
Body Region ◽  
Grizzly Bears ◽  
Grizzly Bear ◽  
Hair Cortisol

Human-caused landscape change negatively affects the sustainability of many wildlife populations. In Alberta, Canada, grizzly bears ( Ursus arctos L., 1758) live in one of the most populated and heavily exploited landscapes in which the species survives. Long-term physiological stress in individual animals may be the predominant mechanism linking landscape change with impaired wildlife population health. Hair cortisol concentration has been validated as a biomarker of long-term stress in humans and domestic animals; however, limited work has examined factors that may affect its measurement or interpretation. We have measured cortisol in as few as five guard hairs of a grizzly bear and have identified factors influencing hair cortisol concentration in this species. Hair cortisol varies with hair type, body region, and capture method. It is not influenced by colour, age, sex, environmental exposure (18 days), or prolonged laboratory storage (>1 year) and does not vary along the length of the hair shaft. Recommendations for prudent use of hair cortisol analysis in grizzly bears are discussed with implications for the development of hair cortisol concentration as a tool to monitor long-term stress in other wildlife.

scholarly journals Quantifying long-term stress in brown bears with the hair cortisol concentration: a biomarker that may be confounded by rapid changes in response to capture and handling

2014 ◽  
Vol 2 (1) ◽  
pp. cou026-cou026 ◽  
Author(s):  
M. Cattet ◽  
B. J. Macbeth ◽  
D. M. Janz ◽  
A. Zedrosser ◽  
J. E. Swenson ◽  
...  
Keyword(s):  
Cortisol Concentration ◽  
Hair Cortisol ◽  
Brown Bears ◽  
Rapid Changes

scholarly journals Association of screen time with long-term stress and temperament in preschoolers: results from the DAGIS study

2020 ◽  
Vol 179 (11) ◽  
pp. 1805-1812
Author(s):  
Marja H. Leppänen ◽  
Katri Sääksjärvi ◽  
Henna Vepsäläinen ◽  
Carola Ray ◽  
Pauliina Hiltunen ◽  
...  
Keyword(s):  
Socioeconomic Status ◽  
Preschool Children ◽  
Young Children ◽  
Screen Time ◽  
Effortful Control ◽  
Cortisol Concentration ◽  
Hair Cortisol ◽  
Moderating Role

Abstract Screen time is increasing rapidly in young children. The aim of this study was to examine associations of long-term stress and temperament with screen time in Finnish preschool children and the moderating role of socioeconomic status. Cross-sectional DAGIS data were utilized. Long-term stress was assessed using hair cortisol concentration, indicating values of the past 2 months. Temperament was reported by the parents using the Children’s Behavior Questionnaire (the Very Short Form), and three broad temperament dimensions were constructed: surgency, negative affectivity, and effortful control. Screen time was reported by the parents over 7 days. The highest education level in the household was used as an indicator of socioeconomic status. In total, 779 children (mean age, 4.7 ± 0.9 years, 52% boys) were included in the study. Of the temperament dimensions, a higher effortful control was associated with less screen time (B = − 6.70, p = 0.002). There was no evidence for an association between hair cortisol concentration and screen time nor a moderating role of socioeconomic status in the associations (p > 0.05). Conclusion: Our findings indicate that preschool children with a higher score in effortful control had less screen time. Because effortful control reflects general self-regulatory abilities, promoting these skills may be effective in reducing screen time in young children. What is Known: • Screen time has increased rapidly during the last decades, and higher screen time has been linked with numerous adverse health consequences in children. • There are no previous studies investigating associations of long-term stress and temperament with screen time in young children. What is New: • Of the temperament dimensions, effortful control was associated with higher screen time in preschool children, but there was no association found between long-term stress and screen time. • Since effortful control reflects general self-regulatory abilities, promoting these skills may be effective in reducing screen time in young children.

Long-term data on the reproduction and maintenance of a colony of common marmosets (Callithrix jacchus jacchus) 1972-1983

1987 ◽  
Vol 21 (3) ◽  
pp. 249-260 ◽  
Author(s):  
H. O. Box ◽  
R. C. Hubrecht
Keyword(s):  
Perinatal Mortality ◽  
Callithrix Jacchus ◽  
Interbirth Interval ◽  
Common Marmosets ◽  
Interbirth Intervals ◽  
Additional Information ◽  
In Captivity ◽  
Term Data ◽  
Callithrix Jacchus Jacchus

We have used our laboratory records to compare data on the reproduction and maintenance of common marmosets in different colonies and to provide additional information on the species in captivity. Data are presented for a period of 12 years. This was long enough to allow information on longevity, mortality, aggression and incest. In addition 543 infants were born from a total of 202 births. No seasonality was found and the highest proportion of births overall was that of triplets. A significantly greater proportion of males was born, but perinatal mortality reduced this to a proportion of 52·2% surviving males. The interbirth interval for all normal births ranged from 145 to 382 days, with a median of 158 days. There was no evidence that interbirth intervals increased with age. The proportion of non-breeding pairs was small (4 out of 28) and progesterone assays showed that these females were ovulating.

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