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N J Perkins

Explore the profile of N J Perkins including associated specialties, affiliations and a list of published articles. Areas
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Articles 9
Citations 124
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Recent Articles
1.
Alkhalaf Z, Kim K, Kuhr D, Radoc J, Purdue-Smithe A, Pollack A, et al.
Hum Reprod . 2021 Apr; 36(7):1808-1820. PMID: 33864070
Study Question: Are insufficient 25-hydroxyvitamin D (25(OH)D) concentrations, and other markers of vitamin D metabolism, associated with premenstrual symptoms in healthy women with regular menstrual cycles? Summary Answer: 25(OH)D insufficiency...
2.
Mumford S, Flannagan K, Radoc J, Sjaarda L, Zolton J, Metz T, et al.
Hum Reprod . 2021 Jan; 36(5):1405-1415. PMID: 33421071
Study Question: Is cannabis use assessed via urinary metabolites and self-report during preconception associated with fecundability, live birth and pregnancy loss? Summary Answer: Preconception cannabis use was associated with reduced...
3.
Harmon Q, Kissell K, Jukic A, Kim K, Sjaarda L, Perkins N, et al.
Hum Reprod . 2020 Feb; 35(2):413-423. PMID: 32068843
Study Question: How do the calciotropic hormones (25-hydroxyvitamin D, 1,25-dihydroxyvitamin D and intact parathyroid hormone (iPTH)) vary across the menstrual cycle and do cyclic patterns of reproductive hormones (estradiol, progesterone,...
4.
Gibbins K, Mumford S, Sjaarda L, Branch D, Perkins N, Ye A, et al.
Lupus . 2018 May; 27(9):1437-1445. PMID: 29771194
Objectives To prospectively estimate the association of preconception antiphospholipid antibodies (aPL) with subsequent pregnancy loss using a cohort design. aPL have been associated with recurrent early pregnancy loss (EPL) prior...
5.
Radin R, Mumford S, Sjaarda L, Silver R, Wactawski-Wende J, Lynch A, et al.
BJOG . 2017 Oct; 125(6):676-684. PMID: 29067752
Objective: To assess weight change and attempted weight loss during the 12-18 months before spontaneous conception in relation to the risk of pregnancy loss. Design: Prospective cohort study. Setting: United...
6.
Matyas R, Mumford S, Schliep K, Ahrens K, Sjaarda L, Perkins N, et al.
Hum Reprod . 2015 May; 30(7):1714-23. PMID: 25954035
Study Question: Does use of commonly used over-the-counter (OTC) pain medication affect reproductive hormones and ovulatory function in premenopausal women? Summary Answer: Few associations were found between analgesic medication use...
7.
Kissell K, Danaher M, Schisterman E, Wactawski-Wende J, Ahrens K, Schliep K, et al.
Hum Reprod . 2014 Jun; 29(8):1764-72. PMID: 24925522
Study Question: Does serum anti-Müllerian hormone (AMH) vary significantly throughout both ovulatory and sporadic anovulatory menstrual cycles in healthy premenopausal women? Summary Answer: Serum AMH levels vary statistically significantly across...
8.
Pollack A, Perkins N, Mumford S, Ye A, Schisterman E
Am J Epidemiol . 2012 Dec; 177(1):84-92. PMID: 23221725
Utilizing multiple biomarkers is increasingly common in epidemiology. However, the combined impact of correlated exposure measurement error, unmeasured confounding, interaction, and limits of detection (LODs) on inference for multiple biomarkers...
9.
Yeung E, Zhang C, Albert P, Mumford S, Ye A, Perkins N, et al.
Int J Obes (Lond) . 2012 Feb; 37(2):237-43. PMID: 22310471
Objective: To investigate the influence of adiposity on patterns of sex hormones across the menstrual cycle among regularly menstruating women. Subjects: The BioCycle Study followed 239 healthy women for 1-2...