Search Results - "O'Donnell, Amy B"

A Population-Level Decline in Serum Testosterone Levels in American Men by Travison, Thomas G., Araujo, Andre B., O’Donnell, Amy B., Kupelian, Varant, McKinlay, John B.

“…Context: Age-specific estimates of mean testosterone (T) concentrations appear to vary by year of observation and by birth cohort, and estimates of…”
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Erectile dysfunction as a predictor of the metabolic syndrome in aging men: results from the Massachusetts Male Aging Study by Kupelian, Varant, Shabsigh, Ridwan, Araujo, Andre B, O'Donnell, Amy B, McKinlay, John B

“…The metabolic syndrome, characterized by central obesity, insulin dysregulation, abnormal lipids and borderline hypertension, is a precursor state for…”
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Intraindividual variation in levels of serum testosterone and other reproductive and adrenal hormones in men by Brambilla, Donald J., O'Donnell, Amy B., Matsumoto, Alvin M., McKinlay, John B.

“…Summary Background  Estimates of intraindividual variation in hormone levels provide the basis for interpreting hormone measurements clinically and for…”
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The validity of a single-question self-report of erectile dysfunction : Results from the massachusetts male aging study by O'DONNELL, Amy B, ARAUJO, Andre B, GOLDSTEIN, Irwin, MCKINLAY, John B

“…To determine how well a single question of self-reported erectile dysfunction compares to a gold standard clinical urologic examination. Clinical validation…”
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Testosterone, Sex Hormone-Binding Globulin, and Frailty in Older Men by Mohr, Beth A., Bhasin, Shalender, Kupelian, Varant, Araujo, Andre B., O'Donnell, Amy B., McKinlay, John B.

“…OBJECTIVES: To determine whether testosterone (T) levels are associated with frailty or its components. DESIGN: Population‐based cohort study conducted in…”
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Cortisol levels and measures of body composition in middle-aged and older men by Travison, Thomas G., O'Donnell, Amy B., Araujo, Andre B., Matsumoto, Alvin M., McKinlay, John B.

“…Summary Introduction  Similarities in the symptomatic expressions of excess adiposity and hypercortisolaemic conditions suggest that elevated glucocorticoid…”
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Lack of Seasonal Variation in Serum Sex Hormone Levels in Middle-Aged to Older Men in the Boston Area by Brambilla, Donald J., O’Donnell, Amy B., Matsumoto, Alvin M., McKinlay, John B.

“…Context: Previous studies of seasonal variation of testosterone and other hormones in men have produced mixed results regarding the number and timing of peaks…”
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Prevalence of Symptomatic Androgen Deficiency in Men by Araujo, Andre B., Esche, Gretchen R., Kupelian, Varant, O’Donnell, Amy B., Travison, Thomas G., Williams, Rachel E., Clark, Richard V., McKinlay, John B.

“…Context: Despite recognition that androgen deficiency in men should be defined according to biochemical and clinical criteria, most prevalence estimates are…”
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The Relative Contributions of Aging, Health, and Lifestyle Factors to Serum Testosterone Decline in Men by Travison, Thomas G., Araujo, Andre B., Kupelian, Varant, O’Donnell, Amy B., McKinlay, John B.

“…Context: Although it is known that serum testosterone (T) concentrations decline with age, the relative contributions of changes in health and lifestyle to…”
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The Relationship between Libido and Testosterone Levels in Aging Men by Travison, Thomas G., Morley, John E., Araujo, Andre B., O’Donnell, Amy B., McKinlay, John B.

“…Context: Although it is known that serum testosterone (T) concentrations are related to libido, the strength of that relationship in community-dwelling men has…”
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Prevalence and Incidence of Androgen Deficiency in Middle-Aged and Older Men: Estimates from the Massachusetts Male Aging Study by Araujo, Andre B., O’Donnell, Amy B., Brambilla, Donald J., Simpson, William B., Longcope, Christopher, Matsumoto, Alvin M., McKinlay, John B.

“…Little is known about the descriptive epidemiology of androgen deficiency. In this study, we sought to address this issue by providing estimates of the crude…”
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Normal, bound and nonbound testosterone levels in normally ageing men: results from the Massachusetts Male Ageing Study by Mohr, Beth A., Guay, Andre T., O'Donnell, Amy B., McKinlay, John B.

“…Summary Objective  There is little consensus on what androgen levels are ‘normal’ for healthy, ageing men. Using data from the Massachusetts Male Ageing Study…”
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The natural progression and remission of erectile dysfunction: results from the Massachusetts Male Aging Study by Travison, Thomas G, Shabsigh, Ridwan, Araujo, Andre B, Kupelian, Varant, O'Donnell, Amy B, McKinlay, John B

“…Erectile dysfunction affects more than 150 million men and is strongly associated with cardiovascular disease. A 1992 National Institutes of Health consensus…”
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The effect of changes in adiposity on testosterone levels in older men: longitudinal results from the Massachusetts Male Aging Study by Mohr, Beth A, Bhasin, Shalender, Link, Carol L, O’Donnell, Amy B, McKinlay, John B

“…Objective: Changes in adiposity affecting total testosterone (TT) and free testosterone (FT) levels have not been examined in a population-based survey. We…”
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Assessment of screening evaluations is not straightforward: Comment on: “Comparison of screening questionnaires for the diagnosis of hypogonadism” [J.E. Morley, H.M. Perry III, R.T. Kevorkian, P. Patrick, Maturitas 53 (2006) 424–429] by Travison, Thomas G., Araujo, Andre B., Wruck, Lisa M., Kupelian, Varant, O’Donnell, Amy B., McKinlay, John B.

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The Natural History of Symptomatic Androgen Deficiency in Men: Onset, Progression, and Spontaneous Remission by Travison, Thomas G., Shackelton, Rebecca, Araujo, Andre B., Hall, Susan A., Williams, Rachel E., Clark, Richard V., O'Donnell, Amy B., McKinlay, John B.

“…OBJECTIVES: To describe the onset, progression, and remission of symptomatic androgen deficiency (SAD) using longitudinal data from the Massachusetts Male…”
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Testosterone, Dehydroepiandrosterone, and Physical Performance in Older Men: Results from the Massachusetts Male Aging Study by O’Donnell, Amy B., Travison, Thomas G., Harris, Susan S., Tenover, J. Lisa, McKinlay, John B.

“…Objective: This manuscript examines the relationships of total testosterone (T), bioavailable T, dehydroepiandrosterone (DHEA), and DHEA sulfate (DHEAS) to…”
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The health of normally aging men: The Massachusetts Male Aging Study (1987–2004) by O'Donnell, Amy B, Araujo, Andre B, McKinlay, John B

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Using Focus Groups to Improve the Validity of Cross-National Survey Research: A Study of Physician Decision Making by O'Donnell, Amy B., Lutfey, Karen E., Marceau, Lisa D., McKinlay, John B.

“…In this article, the authors demonstrate how qualitative methods can form a foundation for quantitative research by improving instrument validity, informing…”
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Higher testosterone levels are associated with increased high-density lipoprotein cholesterol in men with cardiovascular disease: results from the Massachusetts Male Aging Study by Page, Stephanie T., Mohr, Beth A., Link, Carol L., O'Donnell, Amy B., Bremner, William J., McKinlay, John B.

“…Aim: To study the relationship between circulating androgens (total testosterone [TT], free testosterone [fT] and dihydrotestosterone [DHT]) and HDL‐C in men…”
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