Bromocriptine Administration Lowers Serum Prolactin and Disrupts Parental Responsiveness in Common Marmosets (Callithrix j. jacchus)

Roberts, R. Lucille; Jenkins, Kosunique T.; Lawler, Theodore; Wegner, Frederick H.; Newman, John D.

doi:10.1006/hbeh.2000.1639

Cited by 57 publications

(33 citation statements)

References 17 publications

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“…The changes in prolactin levels of fathers and older offspring when carrying infants, found in this study, support previous studies using common marmoset, which indicated that physical contact with newborns (Dixson and George, 1982;Mota and Sousa, 2000;Roberts et al, 2001) influences their hormonal response. Prolactin levels of older offspring also increased when two infants were being carried.…”

Section: Discussionsupporting

confidence: 91%

“…However, urinary prolactin levels were not associated with the amount of paternal carrying in common marmoset fathers (Schradin and Anzenberger, 2004;Schradin et al, 2003). In this case, a direct correlation between physical contact and prolactin levels may not be possible since the daily first-morning urine sample measures accumulated prolactin rather than the immediate changes that occur in the blood while caretakers carry the newborns, as shown by Dixson and George (1982) and Roberts et al (2001) and the present study. Furthermore, the metabolic clearance rate and half-life of plasma prolactin in nonhuman primates are poorly understood, but, in humans, its increase lasts around 50 min (Sassin et al, 1972;Sievertsen et al, 1980), supporting the association between the plasma prolactin levels and physical contact during carrying found here.…”

Section: Discussioncontrasting

confidence: 50%

“…These findings also suggest that prolactin and cortisol are probably not working as physiological modulators (inductors) of parental care in common marmosets. A study using inexperienced common marmosets measuring infant retrieval and carrying behavior showed an increase in prolactin levels following repeated testing in an infant retrieval paradigm and according to carrying episode duration (Roberts et al, 2001). However, urinary prolactin levels were not associated with the amount of paternal carrying in common marmoset fathers (Schradin and Anzenberger, 2004;Schradin et al, 2003).…”

Section: Discussionmentioning

confidence: 99%

“…Prolactin was also associated with maternal care (Dixson and George, 1982;Roberts et al, 2001). In males, estradiol and testosterone levels were lower among males who carried infants at high rates (black tuftedear marmosets: Nunes et al, 2001;Fite et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

“…An association between prolactin levels and paternal and alloparental care has been investigated in birds (Garcia et al, 1996;Schoech et al, 1996), rodents (Gubernick and Nelson, 1989;Brown et al, 1995), New World primates (Dixson and George, 1982;Ziegler et al, 1996;Mota and Sousa, 2000), and humans (Storey et al, 2000;Fleming et al, 2002), showing an elevation in prolactin levels among animals participating in infant care. Among callitrichids, prolactin levels increases following infant carrying (common marmosets: Dixson and George, 1982;Mota and Sousa, 2000;Roberts et al, 2001). Furthermore, the more births a father has experienced, the higher his prolactin levels (cotton-top tamarins: .…”

Section: Introductionmentioning

confidence: 99%

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Hormonal changes related to paternal and alloparental care in common marmosets (Callithrix jacchus)

Mota

Franci

Sousa

2006

Hormones and Behavior

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The physiological mechanisms of parental and alloparental care in cooperatively breeding nonhuman primate species such as the common marmoset (Callithrix jacchus) are poorly known. In this study, we examined prolactin and cortisol plasma levels of fathers and older offspring of both sexes, with and without previous experience in infant carrying, around parturition and during infant carrying. Blood samples were collected from fathers and older offspring and prolactin and cortisol were measured by RIA and EIA, respectively. Prolactin levels of both caretakers were not influenced by infant's birth, previous experience or proximity to parturition. However, prolactin levels increased in both caretakers while in physical contact with infants and also with the number of infants being carried in older offspring. These findings suggest that increased prolactin seems to be mainly due to physical effort rather than a physiological trigger of paternal and alloparental care in common marmosets. Cortisol levels were higher for experienced fathers shortly before parturition which could act to reinforce affiliative bonds between breeding males and females at this time or in the ability of males to detect the proximity of the parturition or both. D

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Section: Discussionsupporting

confidence: 91%

Section: Discussioncontrasting

confidence: 50%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Hormonal changes related to paternal and alloparental care in common marmosets (Callithrix jacchus)

Mota

Franci

Sousa

2006

Hormones and Behavior

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The Marmoset as a Model for Primate Parental Behavior

Saito

2018

Model Animals in Neuroendocrinology

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Male parenting and response to infant stimuli in the common marmoset (Callithrix jacchus)

Zahed¹,

Prudom²,

Snowdon³

et al. 2007

American J Primatol

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Callithrix jacchus infants are raised in complex family environments where most members participate in rearing the young. Many studies examining male parental behavior have focused on the carrying of infants with observations made within the family context. However, interference from family members can make it difficult to assess the father's motivation to care for infants. Our goals were to develop a testing paradigm for determining an individual's response to infant stimuli separate from family influences, compare a male's motivation to respond to an infant stimulus outside the family with his paternal behavior within the family, to compare responses to infant stimuli of parentally experienced versus inexperienced males and finally to develop a reproducible and standardized method of testing male responsiveness to infant stimulus that could serve to evaluate hormonal manipulations. Fifteen experienced common marmoset fathers were evaluated using three different measures of parental behavior: (1) instantaneous scan sampling, (2) continuous focal sampling in the family, and (3) continuous focal sampling of males presented with four infant stimuli: familiar and unfamiliar infants, familiar and unfamiliar infant vocalizations. Six parentally inexperienced males (non-fathers) served as controls. Males that carried the most in the family were typically the same males that responded most to the infant vocalization tests. Experienced fathers did not differ in their latency to enter the stimulus cage for any of the four infant stimuli response tests while inexperienced males took significantly longer to enter the stimulus cage. In addition, fathers expressed a greater frequency of infant-directed behavior than did the inexperienced males during the unfamiliar infant and unfamiliar vocalization tests. These studies show that experienced male marmosets are highly motivated to interact with infant stimuli and that there is interindividual variability in response to infant vocalizations. Testing males outside of the family allows for a clear assessment of male's interest in infant stimuli in both parentally experienced fathers and inexperienced males.

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Bromocriptine Administration Lowers Serum Prolactin and Disrupts Parental Responsiveness in Common Marmosets (Callithrix j. jacchus)

Cited by 57 publications

References 17 publications

Hormonal changes related to paternal and alloparental care in common marmosets (Callithrix jacchus)

Hormonal changes related to paternal and alloparental care in common marmosets (Callithrix jacchus)

The Marmoset as a Model for Primate Parental Behavior

Male parenting and response to infant stimuli in the common marmoset (Callithrix jacchus)

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