Michels KA

ORCID: 0000-0003-2431-2079 · 9 papers in corpus · active 2016-2024
2024
Associations of tubal ligation and hysterectomy with serum androgen and estrogen metabolites among postmenopausal women in the Women's Health Initiative Observational Study.
Cancer causes & control : CCC ·doi:10.1007/s10552-024-01882-4

PurposeHysterectomy is associated with subsequent changes in circulating hormone levels, but the evidence of an association for tubal ligation is unclear. We evaluated whether circulating concentrations of androgens and estrogens differ by …

2021
Serum antioxidant vitamin concentrations and oxidative stress markers associated with symptoms and severity of premenstrual syndrome: a prospective cohort study.
BMC women's health ·doi:10.1186/s12905-021-01187-7

BackgroundIt has been suggested that premenstrual syndrome (PMS) may derive from either elevated oxidative stress or reduced antioxidant vitamin levels in the body; however, these relationships have been minimally studied in a large cohort …

2020
Dietary Intakes of Vitamin B-2 (Riboflavin), Vitamin B-6, and Vitamin B-12 and Ovarian Cycle Function among Premenopausal Women.
Journal of the Academy of Nutrition and Dietetics ·doi:10.1016/j.jand.2019.10.013

BackgroundRiboflavin, vitamin B-6, and vitamin B-12 are key players in one-carbon metabolism as enzymatic cofactors, and deficiency of these nutrients may influence reproductive outcomes possibly through affecting reproductive hormones.Obje…

2018
Dietary minerals, reproductive hormone levels and sporadic anovulation: associations in healthy women with regular menstrual cycles.
The British journal of nutrition ·doi:10.1017/s0007114518000818

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 anovula…

2018
Modification of the Associations Between Duration of Oral Contraceptive Use and Ovarian, Endometrial, Breast, and Colorectal Cancers.
JAMA oncology ·doi:10.1001/jamaoncol.2017.4942

ImportanceAlthough oral contraceptive (OC) use is common, the influence of OC use on carcinogenesis is not fully understood. A recent Agency for Healthcare Research and Quality report identified a need to understand the consistency of OC us…

2017
Dairy Food Intake Is Associated with Reproductive Hormones and Sporadic Anovulation among Healthy Premenopausal Women.
The Journal of nutrition ·doi:10.3945/jn.116.241521

BackgroundDairy food intake has been associated with infertility; however, little is known with regard to associations with reproductive hormones or anovulation.ObjectiveWe investigated whether intakes of dairy foods and specific nutrients …

2016
Dietary fat intake and reproductive hormone concentrations and ovulation in regularly menstruating women.
The American journal of clinical nutrition ·doi:10.3945/ajcn.115.119321

BackgroundEmerging evidence suggests potential links between some dietary fatty acids and improved fertility, because specific fatty acids may affect prostaglandin synthesis and steroidogenesis.ObjectiveThe objective of this exploratory stu…

2016
Differences in infant feeding practices by mode of conception in a United States cohort.
Fertility and sterility ·doi:10.1016/j.fertnstert.2015.12.043

ObjectiveTo identify associations between fertility treatment use (assisted reproductive technologies, ovulation induction, and artificial insemination) and subsequent infant feeding practices.DesignThe Upstate KIDS population-based cohort …

2016
Serum Antioxidants Are Associated with Serum Reproductive Hormones and Ovulation among Healthy Women.
The Journal of nutrition ·doi:10.3945/jn.115.217620

BackgroundEvidence is growing that the equilibrium between reactive oxygen species and antioxidants plays a vital role in women's reproductive health.ObjectiveThe objective of this study was to evaluate variations in serum antioxidant conce…