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1.
Hum Reprod ; 27(9): 2720-8, 2012 Sep.
Article in English | MEDLINE | ID: mdl-22767452

ABSTRACT

BACKGROUND: Life history models suggest that biological preparation for current versus longer term reproduction is favored in environments of adversity. In this context, we present a model of reproductive aging in which environmental adversity is proposed to increase the number of growing follicles at the cost of hastening the depletion of the ovarian reserve over time. We evaluated this model by examining psychological stress in relation to reproductive aging indexed by antral follicle count (AFC), a marker of total ovarian reserve. We hypothesized that stress would be related to (i) higher AFC in younger women, reflecting greater reproductive readiness as well as (ii) greater AFC loss across women, reflecting more accelerated reproductive aging. METHODS: In a multi-ethnic, community sample of 979 participants [ages 25-45 (mean (standard deviation) = 35.2 (5.5)); 27.5% Caucasian] in the Ovarian Aging study, an investigation of the correlates of reproductive aging, the interaction of age-x-stress was assessed in relation to AFC to determine whether AFC and AFC loss varied across women experiencing differing levels of stress. Stress was assessed by the perceived stress scale and AFC was assessed by summing the total number of antral follicles visible by transvaginal ultrasound. RESULTS: In linear regression examining AFC as the dependent variable, covariates (race/ethnicity, socio-economic status, menarcheal age, hormone-containing medication for birth control, parity, cigarette smoking, bodymass index, waist-to-hip ratio) and age were entered on step 1, stress on step 2 and the interaction term (age-x-stress) on step 3. On step 3, significant main effects showed that older age was related to lower AFC (b = -0.882, P = 0.000) and greater stress was related to higher AFC (b = 0.545, P = 0.005). Follow-up analyses showed that the main effect of stress on AFC was present in the younger women only. A significant interaction term (b = -0.036, P = 0.031) showed the relationship between age and AFC varied as function of stress. When the sample was divided into tertiles of stress, the average follicle loss was -0.781, -0.842 and -0.994 follicles/year in the low-, mid- and high-stress groups, respectively. CONCLUSIONS: Psychological stress was related to higher AFC among younger women and greater AFC decline across women, suggesting that greater stress may enhance reproductive readiness in the short term at the cost of accelerating reproductive aging in the long term. Findings are preliminary, however, due to the cross-sectional nature of the current study.


Subject(s)
Aging , Fertility , Reproduction , Adult , Aging/psychology , Cross-Sectional Studies , Female , Follow-Up Studies , Humans , Middle Aged , Ovarian Follicle/pathology , Ovarian Follicle/physiopathology , Premenopause , Regression Analysis , Stress, Psychological , Ultrasonography/methods
2.
J Pediatr Psychol ; 25(7): 481-91, 2000.
Article in English | MEDLINE | ID: mdl-11007805

ABSTRACT

OBJECTIVE: To examine the influence of parent-child relationship quality on the association between illness-related functional status and depressive symptoms in children with asthma. METHODS: Questionnaire data were collected from the child, caregiver, and physician. Fifty-five children with asthma (8-17 years of age), their caregivers, and physicians participated. RESULTS: Regression analyses suggest that patterns of mother-child relatedness (secure vs. insecure) mediate the relationship between functional status and depressive symptoms. CONCLUSIONS: The parent-child relationship may be an important pathway by which illness influences symptoms of depression in children with asthma. This study suggests that impaired functional status does not directly contribute to symptoms of depression, but rather influences the parent-child relationship in ways that may promote the development of depressive symptoms in the child.


Subject(s)
Adaptation, Psychological , Asthma/psychology , Depression/prevention & control , Depression/psychology , Models, Psychological , Parent-Child Relations , Activities of Daily Living , Adolescent , Adult , Child , Female , Humans , Male , Regression, Psychology , Severity of Illness Index , Surveys and Questionnaires
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