Recent Intimate Partner Violence and Oral Contraceptive Pill Adherence in a Cohort of Reproductive-Aged Women.

Objective: Intimate partner violence (IPV) is an important public health problem that impacts reproductive decision-making. Although previous literature has reported a negative impact on contraceptive adherence overall, this study specifically aims to investigate the association between IPV and oral contraceptive pill (OCP) adherence. Methods: We analyzed baseline survey data from 373 OCP users participating in the MyNewOptions study. Recent IPV was defined as any positive response to HARK, a 4-question tool assessing emotional, sexual, and physical abuse in the past year, or self-report of sexual coercion in the past 6 months. High OCP adherence was defined by self-report of missing ≤1 pill per month, which was then corroborated by pharmacy claims data. Multivariable regression analyses were performed to assess the influence of recent IPV history and patient-level variables on OCP adherence. Results: Just over half of our participants were highly adherent to OCPs (53.6%), and approximately one-quarter reported recent IPV exposure (25.2%). Women with recent IPV were significantly less likely to be OCP adherent than those without IPV (adjusted odds ratio (AOR) 0.54, 95% confidence interval (CI): 0.32-0.92). Protestant religion was also associated with high OCP adherence (AOR 2.41, 95% CI: 1.24-4.65, compared with no religious affiliation), while younger age groups (18-25 and 26-33 years) were less likely to have high OCP adherence compared with the 34-40 age group (AOR 0.45, 95% CI: 0.20-1.00 and AOR 0.40, 95% CI: 0.18-0.91, respectively). Conclusion: Recent IPV exposure is associated with low OCP adherence among women of reproductive age. ClinicalTrials.gov identifier: NCT02100124.

Factors Associated with New Uptake of Long-Acting Reversible Contraceptives Since the Affordable Care Act Among Privately Insured Women in Pennsylvania.

BACKGROUND: The Affordable Care Act eliminated out-of-pocket costs for contraceptives, including highly effective long-acting reversible contraception (LARC), for most insured women. Patient characteristics associated with new LARC uptake after the Affordable Care Act have not been well-studied. We hypothesized that awareness of no-cost intrauterine device (IUD) coverage would be associated with new LARC use. METHODS: Data included were from 883 women not using a LARC at baseline who participated in the MyNewOptions study, a 2-year study of privately insured women in Pennsylvania. Multivariable analysis assessed whether the following baseline characteristics predicted new LARC use over 2 years: awareness of no-cost IUD coverage, future pregnancy intention, baseline contraceptive use, contraceptive attitudes, and sociodemographic characteristics. RESULTS: At baseline, 54.4% of participants were using prescription methods; 21.1% nonprescription methods; 12.1% natural family planning, withdrawal, or spermicide alone; and 12.5% no method. A minority (7.2%) was aware of no-cost coverage for IUDs. Over 2 years, 7.2% of participants became new LARC users, but awareness of no-cost coverage for IUDs was not associated with new LARC use (adjusted odds ratio, 0.84; 95% confidence interval, 0.27-2.55). New LARC use was associated with already using prescription methods, not intending pregnancy within the next 5 years, prior unintended pregnancy, and desire to change method if cost were not a factor. CONCLUSIONS: Among privately insured women, wanting to switch methods if cost were not a factor was associated with new LARC uptake, although awareness of no-cost IUD coverage was not. Providing women with information about their contraceptive coverage benefits may help women to seek and obtain the methods better aligned with their personal needs.

Measuring oral contraceptive adherence using self-report versus pharmacy claims data.

OBJECTIVE: Proportion of Days Covered (PDC) is a measure of medication adherence that uses prescription claims data to describe the proportion of days that the patient possessed medication. The objective of this study is to compare PDC and self-report as measures of oral contraceptive pills (OCPs) adherence and to identify individual-level predictors of adherence. STUDY DESIGN: In a sample of 384 OCP users, self-report was compared with PDC as measures of adherence over the past 3 months. Patient-level variables were examined for associations with adherence using multivariable logistic regression models. RESULTS: High adherence, defined as missing ≤1 pill per month, was 76%, 68% and 54% as measured by self-report, PDC and both measures, respectively. Younger women (ages 18-25 and 26-33 years) were significantly less likely to have high adherence on both measures than women in the 34-40 age group [adjusted odds ratio (OR) 0.20, 95% confidence interval (CI) 0.08-0.51 and adjusted OR 0.26, 95% CI 0.11-0.62, respectively). Other predictors of high adherence on both self-report and PDC measures included being in a relationship (adjusted OR 2.30, 95% CI 1.14-4.64, compared with unpartnered women), Protestant religion (adjusted OR 2.08, 95% CI 1.07-4.06, compared with women with no religious affiliation) and higher contraceptive self-efficacy (adjusted OR 1.63, 95% CI 1.03-2.58). CONCLUSION: PDC derived from pharmacy claims, or a combination of PDC and self-report measures, may be an alternative to self-report alone for measuring OCP adherence. IMPLICATIONS: PDC may be a potential tool for measuring women's adherence to OCPs and should be validated in future studies.

Multiple exportins influence thyroid hormone receptor localization.

The thyroid hormone receptor (TR) undergoes nucleocytoplasmic shuttling and regulates target genes involved in metabolism and development. Previously, we showed that TR follows a CRM1/calreticulin-mediated nuclear export pathway. However, two lines of evidence suggest TR also follows another pathway: export is only partially blocked by leptomycin B (LMB), a CRM1-specific inhibitor; and we identified nuclear export signals in TR that are LMB-resistant. To determine whether other exportins are involved in TR shuttling, we used RNA interference and fluorescence recovery after photobleaching shuttling assays in transfected cells. Knockdown of exportins 4, 5, and 7 altered TR shuttling dynamics, and when exportins 5 and 7 were overexpressed, TR distribution shifted toward the cytosol. To further assess the effects of exportin overexpression, we examined transactivation of a TR-responsive reporter gene. Our data indicate that multiple exportins influence TR localization, highlighting a fine balance of nuclear import, retention, and export that modulates TR function.

GDF11 Increases with Age and Inhibits Skeletal Muscle Regeneration.

Age-related frailty may be due to decreased skeletal muscle regeneration. The role of TGF-ß molecules myostatin and GDF11 in regeneration is unclear. Recent studies showed an age-related decrease in GDF11 and that GDF11 treatment improves muscle regeneration, which were contrary to prior studies. We now show that these recent claims are not reproducible and the reagents previously used to detect GDF11 are not GDF11 specific. We develop a GDF11-specific immunoassay and show a trend toward increased GDF11 levels in sera of aged rats and humans. GDF11 mRNA increases in rat muscle with age. Mechanistically, GDF11 and myostatin both induce SMAD2/3 phosphorylation, inhibit myoblast differentiation, and regulate identical downstream signaling. GDF11 significantly inhibited muscle regeneration and decreased satellite cell expansion in mice. Given early data in humans showing a trend for an age-related increase, GDF11 could be a target for pharmacologic blockade to treat age-related sarcopenia.