Growth patterns in early childhood and the onset of menarche before age twelve

Martínez, J. Albós; Araújo, Claudia Affonso Silva; Horta, Bernardo Lessa; Gigante, Denise Petrucci

doi:10.1590/s0034-89102010000200004

Cited by 18 publications

(11 citation statements)

References 25 publications

(49 reference statements)

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“…The inclusion of weight gain in the model of predictors of menarche and first ovulation is consistent with a long-standing literature that accelerated prepubertal growth contributes significantly to an earlier onset of puberty (Frisch, 1984; Mesa et al, 2010; Tanner and Whitehouse, 1975; Wehkalampi et al, 2011). Weight gain is a surrogate measure of a number of variables, including the balance between food intake and energy expenditure; stress-induced inhibition of growth signals (Coplan et al, 2000); neuroendocrine signals that stimulate lean and bone mass; and signals from accumulating fat mass.…”

Section: Discussionsupporting

confidence: 85%

Social and emotional predictors of the tempo of puberty in female rhesus monkeys

Wilson¹,

Bounar²,

Godfrey³

et al. 2013

Psychoneuroendocrinology

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A cascade of neuroendocrine events regulates the initiation and progression of female puberty. However, the factors that determine the timing of these events across individuals are still uncertain. While the consequences of puberty on subsequent emotional development and adult behavior have received significant attention, what is less understood are the social and environmental factors that actually alter the initiation and progression of puberty. In order to more fully understand what factors influence pubertal timing in females, the present study quantified social and emotional behavior; stress physiology; and growth and activity measures in juvenile female rhesus monkeys to determine what best predicts eventual puberty. Based on previous reports, we hypothesized that increased agonistic behavior resulting from subordinate status in their natal group, in combination with slowed growth, reduced prosocial behavior, and increased emotional reactivity would predict delayed puberty. The analyses were restricted to behavioral and physiological measures obtained prior to the onset of puberty, defined as menarche. Together, our findings indicate that higher rates of aggression but lower rates of submission received from group mates; slower weight gain; and greater emotional reactivity, evidenced by higher anxiety, distress and appeasing behaviors, and lower cortisol responsivity in response to a potentially threatening situation, predicts delayed puberty. Together the combination of these variables accounted for 58% of the variance in the age of menarche, 71% in age at first ovulation, and 45% in the duration of adolescent sterility. While early puberty may be more advantageous for the individual from a fertility standpoint, it presents significant health risks, including increased risk for a number of estrogen dependent cancers and as well as the emergence of mood disorders during adulthood. On the other hand, it is possible that increased emotional reactivity associated with delayed puberty could persist, increasing the risk for emotional dysregulation to socially challenging situations. The data argue for prospective studies that will determine how emotional reactivity shown to be important for pubertal timing is affected by early social experience and temperament, and how these stress-related variables contribute to body weight accumulation, affecting the neuroendocrine regulation of puberty.

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Section: Discussionsupporting

confidence: 85%

Social and emotional predictors of the tempo of puberty in female rhesus monkeys

Wilson¹,

Bounar²,

Godfrey³

et al. 2013

Psychoneuroendocrinology

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show abstract

“…Previous studies have shown that the most obese girls tend to reach menarche at an earlier age than do their normoweight counterparts [45][46][47][48]. The association with height in childhood is less conclusive, though it has been shown that girls who underwent more accelerated growth in their childhood also experienced earlier menarche [24,49,50]. In our study, we also observed that girls who were slightly taller or much taller than the average in their prepubertal stage underwent menarche earlier than the shortest girls (12.6 vs. 13.0 years, respectively).…”

Section: Discussionmentioning

confidence: 99%

Childhood factors associated with mammographic density in adult women

Lope

Pérez‐Gómez²,

Moreno

et al. 2011

Breast Cancer Res Treat

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Growth and development factors could contribute to the development of breast cancer associated with an increase in mammographic density. This study examines the influence of certain childhood-related, socio-demographic and anthropometric variables on mammographic density in adult woman. The study covered 3574 women aged 45-68 years, participating in breast cancer-screening programmes in seven Spanish cities. Based on a craniocaudal mammogram, blind, anonymous measurement of mammographic density was made by a single radiologist, using Boyd's semiquantitative scale. Data associated with the early stages of life were obtained from a direct survey. Ordinal logistic regression and generalised linear models were employed to estimate the association between mammographic density and the variables covered by the questionnaire. Screening programme was introduced as a random effects term. Age, number of children, body mass index (BMI) and other childhood-related variables were used as adjustment variables, and stratified by menopausal status. A total of 811 women (23%) presented mammographic density of over 50%, and 5% of densities exceeded 75%. Our results show a greater prevalence of high mammographic density in women with low prepubertal weight (OR: 1.18; 95% CI: 1.02-1.36); marked prepubertal height (OR: 1.25; 95% CI: 0.97-1.60) and advanced age of their mothers at their birth (>39 years: OR: 1.28; 95% CI: 1.03-1.60); and a lower prevalence of high mammographic density in women with higher prepubertal weight, low birth weight and earlier menarche. The influence of these early-life factors may be explained by greater exposure to hormones and growth factors during the development of the breast gland, when breast tissue would be particularly susceptible to proliferative and carcinogenic stimulus.

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“…Schraiber et al, conducted a study with the objective of validating the instrument, World Health Organization Violence against Women (WHO VAW) on psychological, physical and sexual violence by intimate partners against women 10 . Authors translated, adapted and validated the content of the Childhood Trauma Questionnaire , which is administered to adolescents and adults, with the aim to investigate the history of abuse and neglect during childhood 11 . …”

Section: Discussionmentioning

confidence: 99%

“…However, effective tools to assess this knowledge are not available. Although tools for evaluation of the victims of psychological, physical and sexual violence are available, instruments aiming to evaluate health professionals were not found 10 - 11 . Further studies are necessary to verify the knowledge of professionals that guide public health policies, and to combat domestic violence in children.…”

Section: Introductionmentioning

confidence: 99%

Domestic violence on children: development and validation of an instrument to evaluate knowledge of health professionals

Oliveira

Soares

Silveira

et al. 2016

Rev. Latino-Am. Enfermagem

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Objective: to develop and validate an instrument to evaluate the knowledge of health professionals about domestic violence on children. Method: this was a study conducted with 194 physicians, nurses and dentists. A literature review was performed for preparation of the items and identification of the dimensions. Apparent and content validation was performed using analysis of three experts and 27 professors of the pediatric health discipline. For construct validation, Cronbach's alpha was used, and the Kappa test was applied to verify reproducibility. The criterion validation was conducted using the Student's t-test. Results: the final instrument included 56 items; the Cronbach alpha was 0.734, the Kappa test showed a correlation greater than 0.6 for most items, and the Student t-test showed a statistically significant value to the level of 5% for the two selected variables: years of education and using the Family Health Strategy. Conclusion: the instrument is valid and can be used as a promising tool to develop or direct actions in public health and evaluate knowledge about domestic violence on children.

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Growth patterns in early childhood and the onset of menarche before age twelve

Cited by 18 publications

References 25 publications

Social and emotional predictors of the tempo of puberty in female rhesus monkeys

Social and emotional predictors of the tempo of puberty in female rhesus monkeys

Childhood factors associated with mammographic density in adult women

Domestic violence on children: development and validation of an instrument to evaluate knowledge of health professionals

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