Koki Ikeda
Biographic Data
| ID | 5207183 |
|---|---|
| NAME | Koki Ikeda |
| GIVEN NAMES | Koki |
| FAMILY NAME | Ikeda |
| SIGNATURE | IKEDA K |
| AFFILIATIONS | Department of Cognitive and Behavioral Science The University of Tokyo Tokyo Japan |
| ORCID | 0000-0001-6032-5577 |
| VERIFIED | Yes |
| TOTAL WORKS | 2 |
| TOTAL CITATIONS | 0 |
| AUTHOR COUNT | 2 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2009 |
| LATEST PUBLICATION YEAR | 2018 |
| H-INDEX | 0 |
The presence of females induces elevated cortisol levels in an alpha male: Experimental evidence in chimpanzees
OBJECTIVES: In group-living primates, it has been reported that the alpha male exhibits high concentrations of cortisol and testosterone in the context of mating competition. We investigated how the presence of females affected salivary cortisol and testosterone levels in males from a small captive group of chimpanzees (Pan troglodytes). Specifically, we assessed whether the presence of females resulted in a rapid increase in salivary cortisol an…
Validation of salivary cortisol and testosterone assays in chimpanzees by liquid chromatography‐tandem mass spectrometry
Owing to its high temporal sensitivity, saliva has distinct advantages for measuring steroids, compared with other noninvasive samples such as urine and feces. Here, we report the validity of assaying salivary cortisol (C) and testosterone (T) using liquid chromatography‐tandem mass spectrometry (LC‐MS/MS) in captive male chimpanzees, Pan troglodytes . For both the C and T concentrations, we found positive relationships between saliva and plasma.…
No prominent works on this page.
Validation of salivary cortisol and testosterone assays in chimpanzees by liquid chromatography‐tandem mass spectrometry
Owing to its high temporal sensitivity, saliva has distinct advantages for measuring steroids, compared with other noninvasive samples such as urine and feces. Here, we report the validity of assaying salivary cortisol (C) and testosterone (T) using liquid chromatography‐tandem mass spectrometry (LC‐MS/MS) in captive male chimpanzees, Pan troglodytes . For both the C and T concentrations, we found positive relationships between saliva and plasma.…
The presence of females induces elevated cortisol levels in an alpha male: Experimental evidence in chimpanzees
OBJECTIVES: In group-living primates, it has been reported that the alpha male exhibits high concentrations of cortisol and testosterone in the context of mating competition. We investigated how the presence of females affected salivary cortisol and testosterone levels in males from a small captive group of chimpanzees (Pan troglodytes). Specifically, we assessed whether the presence of females resulted in a rapid increase in salivary cortisol an…
Biology (2 works) · Endocrinology (2 works) · Hormone (2 works) · Internal Medicine (2 works) · Medicine (2 works) · Primate Behavior and Ecology (2 works) · Saliva (2 works) · Stress Responses and Cortisol (2 works) · Aggression (1 works) · Androgen (1 works)