S. Jean Emans

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BACKGROUND Although vitamin D deficiency has been documented as a frequent problem in studies of young adults, elderly persons, and children in other countries, there are limited data on the prevalence of this nutritional deficiency among healthy US teenagers. OBJECTIVE To determine the prevalence of vitamin D deficiency in healthy adolescents presenting(More)
OBJECTIVE To clarify the role of physiologic regulators of bone turnover in patients with anorexia nervosa (AN). STUDY DESIGN Adolescent girls with AN (n = 61) had anthropometric, nutrition, and exercise data acquired, and bone mineral density (BMD) and body composition measured by dual energy x-ray absorptiometry. Serum samples were obtained for(More)
We undertook a prospective study of 300 postmenarcheal female subjects (median age, 18.0 years) to examine (1) the relation of tampon use, sports participation, prior gynecologic examination, and consensual sexual activity to hymenal anatomy, (2) the factors leading to choice of tampons by girls not sexually active, and (3) factors related to ease of(More)
STUDY OBJECTIVE To evaluate adolescent girls with chronic pelvic pain not responding to conventional medical therapy, using advances in operative laparoscopy to determine endometriosis prevalence, clinical stage, and type of lesion. DESIGN A descriptive retrospective study of subjects who (1) were referred for the evaluation of chronic pelvic pain, (2)(More)
Young women with anorexia nervosa (AN) have subnormal levels of dehydroepiandrosterone (DHEA) and estrogen that may be mechanistically linked to the bone loss seen in this disease. The purpose of this study was to compare the effects of a 1-yr course of oral DHEA treatment vs. conventional hormonal replacement therapy (HRT) in young women with AN. Sixty-one(More)
Bone loss is a serious consequence of anorexia nervosa (AN). Subnormal levels of serum dehydroepiandrosterone (DHEA) are seen in patients with AN and may be causally linked to their low bone density. We hypothesized that oral DHEA would decrease markers of bone resorption (urinary N-telopeptides [NTx]), and increase markers of bone formation (serum(More)
OBJECTIVES Music videos from five genres of music were analyzed for portrayals of tobacco and alcohol use and for portrayals of such behaviors in conjunction with sexuality. METHODS Music videos (n = 518) were recorded during randomly selected days and times from four television networks. Four female and four male observers aged 17 to 24 years were(More)
Insulin resistance is common in adults with polycystic ovary syndrome (PCOS). Although recent data demonstrate that insulin resistance is present in the early stages of PCOS, the prevalence of insulin resistance in adolescents with PCOS has not been determined. Likewise, the prevalence of impaired glucose tolerance (IGT) or type 2 diabetes mellitus (DM) in(More)
OBJECTIVE To delineate functional brain abnormalities associated with anorexia nervosa (AN). STUDY DESIGN Positron emission tomographic measurements of regional cerebral blood flow (rCBF) were performed on 8 female patients with AN and 8 healthy female control subjects during exposure to 3 types of stimuli: high-calorie foods, low-calorie foods, and(More)
PURPOSE To examine the associations among early age of onset of sexual intercourse and drug use, lifetime and current problem drug behaviors, and sexual risk behaviors. METHODS The 1993 Massachusetts Youth Risk Behavior Survey was administered to a sample of 3,054 students from randomly selected high schools and classrooms; 36% (1,078) consistently(More)