Kara A. Michels
YOU?
Author Swipe
View article: Circulating biomarkers of infection and endometrial cancer risk
Circulating biomarkers of infection and endometrial cancer risk Open
Purpose Incidence and mortality rates for endometrial cancer are rising. We need to better understand the etiology of this disease and identify new risk factors. We examined whether common genital infections are associated with endometrial…
View article: 6587 Circulating androgen and estrogen metabolites associated with self-reported sleep quality and vasomotor symptoms in the Women’s Health Initiative Observational Study
6587 Circulating androgen and estrogen metabolites associated with self-reported sleep quality and vasomotor symptoms in the Women’s Health Initiative Observational Study Open
Disclosure: A.H. Arabi: None. B. Trabert: None. M. Allison: None. G. Anderson: None. J. Chervenak: None. C.J. Crandall: None. M. Gass: None. J. Gorzelitz: None. E.S. LeBlanc: None. H. Lieman: None. R.M. Pfeiffer: None. J. Wactawski-Wende: …
View article: Associations of tubal ligation and hysterectomy with serum androgen and estrogen metabolites among postmenopausal women in the Women’s Health Initiative Observational Study
Associations of tubal ligation and hysterectomy with serum androgen and estrogen metabolites among postmenopausal women in the Women’s Health Initiative Observational Study Open
View article: Association of hormonal and reproductive factors with differentiated thyroid cancer risk in women: a pooled prospective cohort analysis
Association of hormonal and reproductive factors with differentiated thyroid cancer risk in women: a pooled prospective cohort analysis Open
Background The incidence of differentiated thyroid cancer (DTC) is higher in women than in men but whether sex steroid hormones contribute to this difference remains unclear. Studies of reproductive and hormonal factors and thyroid cancer …
View article: Night shift work, sleep duration and endometrial cancer risk: A pooled analysis from the Epidemiology of Endometrial Cancer Consortium (E2C2)
Night shift work, sleep duration and endometrial cancer risk: A pooled analysis from the Epidemiology of Endometrial Cancer Consortium (E2C2) Open
View article: Variability in Sleep Duration and Biomarkers of Cardiovascular Disease Across the Menstrual Cycle
Variability in Sleep Duration and Biomarkers of Cardiovascular Disease Across the Menstrual Cycle Open
Variability in sleep duration and cardiovascular health have been infrequently investigated, particularly among reproductive-age women. We examined these associations across the menstrual cycle among a cohort of 250 healthy premenopausal w…
View article: The Influence of Preanalytical Biospecimen Handling on the Measurement of B Vitamers, Amino Acids, and Other Metabolites in Blood
The Influence of Preanalytical Biospecimen Handling on the Measurement of B Vitamers, Amino Acids, and Other Metabolites in Blood Open
Introduction: Sample handling can influence biomarker measurement and introduce variability when combining data from multiple studies or study sites. To inform the development of blood collection protocols within a multisite …
View article: Risk factors for endometrial cancer in Black women
Risk factors for endometrial cancer in Black women Open
View article: 0305 Irregularities in Sleep Duration and Biomarkers of Cardiovascular Disease across the Menstrual Cycle
0305 Irregularities in Sleep Duration and Biomarkers of Cardiovascular Disease across the Menstrual Cycle Open
Introduction Irregular sleep duration may disrupt circadian rhythms necessary for optimal cardiovascular function. Yet, few studies have examined irregular sleep duration in relation to cardiovascular health, particularly among diverse coh…
View article: Association of Endogenous Pregnenolone, Progesterone, and Related Metabolites with Risk of Endometrial and Ovarian Cancers in Postmenopausal Women: The B<b>∼</b>FIT Cohort
Association of Endogenous Pregnenolone, Progesterone, and Related Metabolites with Risk of Endometrial and Ovarian Cancers in Postmenopausal Women: The B<b>∼</b>FIT Cohort Open
Background: Postmenopausal pregnenolone and/or progesterone levels in relation to endometrial and ovarian cancer risks have been infrequently evaluated. To address this, we utilized a sensitive and reliable assay to quantify prediagnostic …
View article: Physical Activity From Adolescence Through Midlife and Associations With Body Mass Index and Endometrial Cancer Risk
Physical Activity From Adolescence Through Midlife and Associations With Body Mass Index and Endometrial Cancer Risk Open
Background Physical activity is associated with lower risk for endometrial cancer, but the extent to which the association is mediated by body mass index (BMI) in midlife is unclear. This study describes the physical activity–endometrial c…
View article: Endogenous Progestogens and Colorectal Cancer Risk among Postmenopausal Women
Endogenous Progestogens and Colorectal Cancer Risk among Postmenopausal Women Open
Background: The role of progestogens in colorectal cancer development is poorly characterized. To address this, our group developed a highly sensitive assay to measure concentrations of seven markers of endogenous progestogen metabolism am…
View article: Trends in oral contraceptive and intrauterine device use among reproductive-aged women in the US from 1999 to 2017
Trends in oral contraceptive and intrauterine device use among reproductive-aged women in the US from 1999 to 2017 Open
View article: Serum antioxidant vitamin concentrations and oxidative stress markers associated with symptoms and severity of premenstrual syndrome: a prospective cohort study
Serum antioxidant vitamin concentrations and oxidative stress markers associated with symptoms and severity of premenstrual syndrome: a prospective cohort study Open
View article: Associations between daily aspirin use and cancer risk across strata of major cancer risk factors in two large U.S. cohorts
Associations between daily aspirin use and cancer risk across strata of major cancer risk factors in two large U.S. cohorts Open
View article: Dietary Intakes of Vitamin B-2 (Riboflavin), Vitamin B-6, and Vitamin B-12 and Ovarian Cycle Function among Premenopausal Women
Dietary Intakes of Vitamin B-2 (Riboflavin), Vitamin B-6, and Vitamin B-12 and Ovarian Cycle Function among Premenopausal Women Open
View article: The influences of sleep duration, chronotype, and nightwork on the ovarian cycle
The influences of sleep duration, chronotype, and nightwork on the ovarian cycle Open
Despite research indicating that sleep disorders influence reproductive health, the effects of sleep on reproductive hormone concentrations are poorly characterized. We prospectively followed 259 regularly menstruating women across one to …
View article: Metabolic syndrome and risk of ovarian and fallopian tube cancer in the United States: An analysis of linked SEER–Medicare data
Metabolic syndrome and risk of ovarian and fallopian tube cancer in the United States: An analysis of linked SEER–Medicare data Open
View article: Postmenopausal Androgen Metabolism and Endometrial Cancer Risk in the Women’s Health Initiative Observational Study
Postmenopausal Androgen Metabolism and Endometrial Cancer Risk in the Women’s Health Initiative Observational Study Open
Background After menopause, several androgens continue to be produced primarily by the adrenal glands; these can be converted into estrogens via aromatization or into androgen metabolites. It is unclear if androgens are associated with end…
View article: Circulating androgens and postmenopausal ovarian cancer risk in the Women's Health Initiative Observational Study
Circulating androgens and postmenopausal ovarian cancer risk in the Women's Health Initiative Observational Study Open
Our knowledge of epidemiologic risk factors for ovarian cancer supports a role for androgens in the pathogenesis of this disease; however, few studies have examined associations between circulating androgens and ovarian cancer risk. Using …
View article: Dietary intake of nutrients involved in folate-mediated one-carbon metabolism and risk for endometrial cancer
Dietary intake of nutrients involved in folate-mediated one-carbon metabolism and risk for endometrial cancer Open
Our findings indicate that one-carbon metabolism plays a role in endometrial carcinogenesis and exploration of this role in tissue and cellular biology studies is warranted.
View article: Dietary minerals, reproductive hormone levels and sporadic anovulation: associations in healthy women with regular menstrual cycles
Dietary minerals, reproductive hormone levels and sporadic anovulation: associations in healthy women with regular menstrual cycles Open
Although minerals are linked to several reproductive outcomes, it is unknown whether dietary minerals are associated with ovulatory function. We hypothesised that low intakes of minerals would be associated with an increased risk of anovul…
View article: Modification of the Associations Between Duration of Oral Contraceptive Use and Ovarian, Endometrial, Breast, and Colorectal Cancers
Modification of the Associations Between Duration of Oral Contraceptive Use and Ovarian, Endometrial, Breast, and Colorectal Cancers Open
Long-term OC use is consistently associated with reduced ovarian cancer risk across lifestyle factors. We observed the greatest risk reductions for endometrial cancer among women at risk for chronic diseases (ie, smokers, obese BMI). Oral …
View article: Oral Contraceptive Use and Risks of Cancer in the NIH-AARP Diet and Health Study
Oral Contraceptive Use and Risks of Cancer in the NIH-AARP Diet and Health Study Open
Although use of oral contraceptives (OCs) is common, their influence on carcinogenesis is not fully understood. We used Cox proportional hazards models to examine OC use (never/<1 year (referent), 1-4, 5-9, ≥10 years) and development of in…
View article: Breastfeeding and motor development in term and preterm infants in a longitudinal US cohort
Breastfeeding and motor development in term and preterm infants in a longitudinal US cohort Open
View article: Folate, homocysteine and the ovarian cycle among healthy regularly menstruating women
Folate, homocysteine and the ovarian cycle among healthy regularly menstruating women Open
This work was supported by the Intramural Research Program of the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health (Contract numbers: HHSN275200403394C, HHSN275201100002I and Ta…
View article: Maternal Smoking and Newborn Cytokine and Immunoglobulin Levels
Maternal Smoking and Newborn Cytokine and Immunoglobulin Levels Open
This study evaluated a range of inflammatory biomarkers and immunoglobulins in association with maternal smoking and timing/duration of smoking along with secondhand smoke exposure. By using DBSs, we present data from a large cohort of chi…
View article: Dairy Food Intake Is Associated with Reproductive Hormones and Sporadic Anovulation among Healthy Premenopausal Women
Dairy Food Intake Is Associated with Reproductive Hormones and Sporadic Anovulation among Healthy Premenopausal Women Open
View article: Adjusting for abstinence time in semen analyses: some considerations
Adjusting for abstinence time in semen analyses: some considerations Open
There is a need to study factors that influence male fertility, as fertility is associated not only with reproductive success but also long-term health (Tvrda et al., 2015). Semen quality, often characterized by parameters such as sperm co…
View article: Dietary fat intake and reproductive hormone concentrations and ovulation in regularly menstruating women
Dietary fat intake and reproductive hormone concentrations and ovulation in regularly menstruating women Open