Publications - Behavioral Endocrinology


  • Can body mass index identify cardiac autonomic dysfunction in women who are apparently healthy?

    We investigated the extent to which obesity could identify autonomic dysfunction of heart control in a cross-sectional study with 65 women (aged 18-45 years), categorized as eutrophic, overweight or obese. We collected anthropometric measures and measures of heart rate variability (HRV) between...
  • Stress response: I. Homeostasis and allostasis theory

  • Endocrine and Cognitive Adaptations to Cope with Stress in Immature Common Marmosets (Callithrix jacchus): Sex and Age Matter

  • Sexual dysfunction in obese women is more affected by psychological domains than that of non-obese

  • Stress Response II: Resilience and vulnerability

  • Variation of glucocorticoid metabolite levels is associated with survival demands in immature and reproductive demands in adult wild black capuchins (Sapajus nigritus)

  • Impacts of social support on symptoms in Brazilian women with fibromyalgia

  • Measurement of cognitive bias and cortisol levels to evaluate the effects of space restriction on captive collared peccary (Mammalia, Tayassuidae)

  • Physiological and behavioral responses to routine procedures in captive common marmosets (Callithrix jacchus)

  • Common Marmosets: A Potential Translational Animal Model of Juvenile Depression

  • Comparison of techniques used for functional evaluation of pelvic floor muscles

    Objective: To identify and discuss techniques for evaluation of pelvic floor muscles (PFM) focusing on the most used and accessible techniques in health care.
  • Effect of Chronic Stress during Adolescence in Prefrontal Cortex Structure and Function

    We speculate upon the risks of prolonged exposure to stressful environments in human adolescents and the possibility of stunted development of executive functions.
  • Hormonal Correlates Of Behavioural Profiles And Coping Strategies In Captive Capuchin Monkeys (Sapajus Libidinosus)

    In this study, we tested the hypothesis that individual differences in behavioural profiles correlate to differences in stress-related behaviours and hormonal levels in captive brown capuchin monkeys (Sapajus libidinosus).
  • Parturition Signaling by Visual Cues in Female Marmosets (Callithrix jacchus)

    Skin reflectance spectra at different stages of pregnancy. Reflectance spectra from the genitalia and the thighs of one subject (Female C) measured throughout two weeks following (+1 to +2) and four weeks preceding (-4 to -1) parturition.
  • Different Types of Physical Activity on Inflammatory Biomarkers In Women with or without Metabolic Disorders: A Systematic Review

    The aim of this review was to identify relevant studies using a systematic search-and-review procedure to provide a critical review of the relations of different types of acute and chronic physical activity to inflammatory biomarkers in females.
  • Afeto positivo e negativo e sua relação com a dor e funcionalidade em mulheres com fibromialgia

    Estes resultados evidenciam a associação entre as variáveis afetivas e fisiológicas e sugerem alteração importante nos estados afetivos que pode estar interferindo nos mecanismos de percepção...
  • Análise da percepção da fadiga, estresse e ansiedade em trabalhadores de uma indústria de calçados

    A percepção de fadiga afeta principalmente os trabalhadores que apresentam traço de ansiedade alto. Contudo, percebe-se, por meio dos testes de correlações, que as variáveis sexo, setor de trabalho e traço de ansiedade podem modular os níveis de fadiga e estresse laboral e percebido entre...
  • The Influence of Sex and Relatedness on Stress Response in Common Marmosets (Callithrix jacchus)

    The results only partially support the buffering model theory and corroborate other studies reporting that the benefits of social support during a period of crisis arise only when it is adaptive for that species.
  • Improvement in physiological and psychological parameters after 6months of yoga practice

    Yoga is believed to have beneficial effects on cognition, attenuation of emotional intensity and stress reduction. Previous studies were mainly performed on eastern experienced practitioners or unhealthy subjects undergoing concomitant conventional therapies.
  • Behavioral and hormonal analysis of social relationship between oldest (reproductive and non-reproductive) females in a wild monogamous group of common marmoset, Callithrix jacchus.

    The results provide evidence that ovarian function in mature subordinate females might be affected by the reproductive condition of the dominant female.
  • Influence of cortisol and DHEA-S in pain and others symptoms in post menopausal women with fibromyalgia

    This study aims to assess cortisol and dehydroepiandrosterone sulfate (DHEA-S) levels in post-menopausal women with FMS and correlate it with pain threshold and tolerance, depression and quality of life.
  • Diurnal variation on the excretion patterns of fecal steroids in common marmoset (Callithrix jacchus) females

    The consistency of our findings reinforces the usefulness of this approach for studying reproductive and adrenocortical function in marmosets and also indicates that fecal collection should be limited to either morning or afternoon collections.
  • Possible organizational effect of sex steroids on the stabilization of manual preference in female common marmosets (Callithrix jacchus)

    we used six animals, which were observed in food-reaching tests involving hand-use preference from the infantile to the adult phase. During this period, fecal samples were collected for sexual hormone analysis (estrogen and progesterone).
  • Os significados de saúde na relação sexual para mulheres assistidas pelo SUS na cidade de Natal, Rio Grande do Norte, Brasil

    We identified three representational dimensions: prevention, relationship with the partner, and quality of life. The central nucleus of social representation consisted of the elements “prevention” and “condoms”.
  • A Pesquisa na UFRN: percurso, desafios, realizações e ações de futuro

  • The pair-bond formation and its role in the stimulation of reproductive function in female common marmosets, Callithrix jacchus

    We investigated the existence of a correlation between characteristics of sociosexual interaction of marmoset pairs and its role in stimulating reproductive function in females. We studied pair-bond formation during the first 10 weeks of pairing in eight unrelated heterosexual pairs of common...
  • Iní­cio da função gonadal no sagui comum (Callithrix jacchus): diferenças entre gêneros

    Os resultados apontaram que os níveis de progesterona nas fêmeas e andrógenas nos machos foram estatisticamente mais elevados nos estágios juvenil II e subadulto, respectivamente, em relação ao estágio juvenil I. Estes achados indicam que, de acordo com a nova classificação, foi...
  • Why do women not prefer much older men? a hypothesis based on alterations in male reproductive physiology related to increased age

    Based on these findings, we suggest that reproducing with much older men does not represent the best reproductive option for women, which would explain the female preference for only slightly older or similarly-aged mates.
  • New developmental stages for common marmosets (Callithrix jacchus) using mass and age variables obtained by K-means algorithm and self-organizing maps (SOM)

    This study proposes new developmental stages for Callithrix jacchus, using K-Means algorithm and an artificial neural network-self-organising maps (SOM) as computational tools, based on weight and age.
  • Reproductive patterns and birth seasonality in a South-American breeding colony of common marmosets,Callithrix jacchus

    We analyzed data on captive-born and wild-caught females housed under natural conditions in a colony located in northeastern Brazil.
  • Modulação pela progesterona da sensibilidade dolorosa a estímulos mecânicos e isquêmicos em mulheres saudáveis e jovens

    Objetivo: investigar a relação entre percepção da dor (limiar e tolerância à dor experimental em resposta à isquemia e à pressão) em mulheres jovens e saudáveis com os níveis séricos dos hormônios sexuais femininos (estradiol e progesterona).
  • Testicular Volume and Reproductive Status of Wild Callithrix jacchus

    The findings suggest that testicular size varies with male reproductive status in the social group and that the enlargement of testicular volume in breeding common marmoset males seems to be a result of proximate causes and to depend on social and reproductive...
  • Histopathology findings in common marmosets (Callithrix jacchus Linnaeus, 1758) with chronic weight loss associated with bile tract obstruction by infestation with Platynosomum (Loos, 1907)

    This study investigated the histopathology of the lungs, duodenum, liver, gallbladder, extrahepatic bile ducts and pancreatic ducts of six common marmosets (Callithrix jacchus) suffering from severe non-diarrheic weight loss.
  • Efeito do parceiro social sobre a resposta comportamental ao ambiente novo em sagui comum, (Callithrix jacchus)

    Os resultados mostram que a resposta comportamental é sexualmente dimórfica, e que machos e fêmeas utilizam diferentes estratégias quando confrontados com situações desafiadoras no ambiente natural. (PDF) Efeito do parceiro social sobre a resposta comportamental ao ambiente novo em sagüi comum (Callithrix...
  • Avaliação da fidedignidade dos ensaios de esteróides fecais realizados no Laboratório de Medidas Hormonais do Departamento De Fisiologia aa UFRN

  • Variacao temporal diurna do comportamento afiliativo de sagui comum (Callithrix jacchus) vivendo em ambiente natural

  • Common marmosets (Callithrix jacchus) as a potential animal model for studying psychological disorders associated with high and low responsiveness of hypothalamic-pituitary-adrenal axis

  • Annual variation in plasma cortisol levels in common marmosets, Callithrix jacchus

  • Effect of relatedness on the behavioral and endocrine components of stress response in common marmosets (Callithrix jacchus) males

  • Monitoramento hormonal do par reprodutor de Callithrix jacchus antes e após o nascimento dos filhotes.

  • <![CDATA[Contested dominance modifies the anovulatory consequences of social subordination in female marmosets]]>

  • Variação na contagem de leucócitos em Callithrix jacchus (Linnaeus, 1758) submetidos a uma situação de estresse agudo

  • Intervençãoo comportamental quanto ao desempenho sexual de pacientes do programa de assistência e cuidado da hipertensão arterial (PACHA) do Hospital Universitário Onofre Lopes

  • Percepção da dor isquémica e à pressão em mulheres jovens durante o ciclo menstrual: Associação entre estados de humor e ní­veis de cortisol.

  • Influence of gender and relatedness on the behavioral response of common marmosets to environmental and social change

  • Evaluation of behavioral strategies and hormonal profile from wild dominant and subordinate common marmoset (Callithrix jacchus) females to achieve reproductive success

  • Changes in peak expiratory flow and respiratory strength during the menstrual cycle

  • Behavioral strategies and hormonal profiles of dominant and subordinate common marmoset (Callithrix jacchus) females in wild monogamous groups

  • Circadian Variation with a Diurnal Bimodal Profile on Scent-Marking Behavior in Captive Common Marmosets (Callitrhix jacchus)

  • Fecal androgen levels in common marmoset (Callithrix jacchus) males living in captive family groups

  • Estresse e função reprodutiva feminina

  • Two Breeding Females within Free&amp;hyphen;Living Groups May Not Always Indicate Polygyny: Alternative Subordinate Female Strategies in Common Marmosets (Callithrix jacchus)

  • Vocabulario inglês/potuguês de termos da Área de etologia

  • Fecal collection in free-ranging common marmosets, Callithrix jacchus.

  • Parent Daughter Relationships and Social Controls on Fertility in Female Common Marmosets, Callithrix jacchus

  • Grooming Circadian Rhythmicity, Progesterone Levels and Partner Preference of the Reproductive Pair of a Captive Common Marmoset (Callithrix jacchus) Family Group during Pregnancy and after Parturition

  • Hormonal profile of common marmosets (Callithrix jacchus) males living in family groups in captivity

  • Hand preference study in marmosets (Callithrix jacchus) using food reaching tests

  • Diurnal Variation in Scent Marking Behavior in Captive Male and Female Common Marmosets, Callithrix jacchus

  • Morning and Afternoon Patterns of Fecal Cortisol Excretion among Reproductive and Non-Reproductive Male and Female Common Marmosets, Callithrix jacchus

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

  • Prolactin Levels of Fathers and Helpers Related to Alloparental Care in Common Marmosets, &lt;i&gt;Callithrix jacchus&lt;/i&gt;

  • Litter Size Does Not Interfere with Fertility in Common Marmosets, &lt;i&gt;Callithrix jacchus&lt;/i&gt;

  • Behavior And Progesterone Levels In Callithrix jacchus Females.

  • The Effect Of Parturition On The Interactions Within Pairs Of Common Marmosets (Callithrix jacchus).

  • Estudo Neuroanatômico do Prosencéfalo do Callithrix jacchus.

  • Family composition and the characteristics of parental care during the nursing phase of captive common marmosets (Callithrix jacchus)

  • Ritmo Circadiano da Atividade Motora do Sagüi Comum, Callithrix jacchus.

  • A Cronobiologia e O Anestesista

  • Circadian Variation Of Methyleugenol Anesthesia In Albino Rats.

  • S-T Variations In The Rat Eletrocardiogram.

  • Cardiovascular reflexes in conscious toads

  • Autonomic Adjustments During Avoidance And Orienting Responses Induced By Electrical Stimulation Of Cns In Toads.

  • Autonomic Variations Caused By Stimulation Of The Rombencephalic Visceral Sensory Zone In Anesthetized Toads.