COVID-19 Vaccine Seroresponse Based on The Timing of The Primary Series; Pre- versus Post-Renal Transplantation.

Background: Coronavirus disease 2019 (COVID-19) poses a serious risk to patients with chronic kidney disease (CKD) and renal transplant. While COVID-19 vaccination is recommended before transplant, there are limited data comparing vaccine timing. Our aim is to evaluate serological responses to COVID-19 vaccines pre- and post-renal transplant and the durability of antibody levels.

Both Mother and Infant Require a Vitamin D Supplement to Ensure That Infants' Vitamin D Status Meets Current Guidelines.

We examined the association between maternal vitamin D intake during breastfeeding with their infants' vitamin D status in infants who did or did not receive vitamin D supplements to determine whether infant supplementation was sufficient. Using plasma from a subset of breastfed infants in the APrON (Alberta Pregnant Outcomes and Nutrition) cohort, vitamin D status was measured by liquid chromatography-tandem mass spectrometry. Maternal and infants' dietary data were obtained from APrON's dietary questionnaires.

The Current Recommended Vitamin D Intake Guideline for Diet and Supplements During Pregnancy Is Not Adequate to Achieve Vitamin D Sufficiency for Most Pregnant Women.

Background: The aims of this study were to determine if pregnant women consumed the recommended vitamin D through diet alone or through diet and supplements, and if they achieved the current reference range vitamin D status when their reported dietary intake met the current recommendations.

Methods: Data and banked blood samples collected in second trimester from a subset of 537 women in the APrON (Alberta Pregnant Outcomes and Nutrition) study cohort were examined. Frozen collected plasma were assayed using LC-MS/MS (liquid chromatography-tandem mass spectrometry) to determine 25(OH)D2, 25(OH)D3, 3-epi-25(OH)D3 concentrations.

The DNA binding domain of estrogen receptor alpha is required for high-affinity nuclear interaction induced by estradiol.

Estrogen receptor alpha (ER) is a member of the nuclear hormone receptor family, which upon binding estrogen shows increased apparent affinity for nuclear components (tight nuclear binding). The nuclear components that mediate this tight nuclear binding have been proposed to include both ER-DNA interactions and ER-protein interactions. In this paper, we demonstrate that tight nuclear binding of ER upon estrogen occupation requires ER-DNA interactions.

Impact of an Adherence Program on the Health and Outlook of HIV-Infected Patients Failing Antiretroviral Therapy.

Background: We prospectively studied the impact of an adherence counselor on the outcome of patients failing antiretroviral therapy because of nonadherence.

Methods: Forty-six patients, identified as chronically nonadherent were enrolled. Individual attention was provided using the information, motivation and behavioral methodology.

Differentiation of murine embryonic stem cells induces progesterone receptor gene expression.

The role of steroid hormone receptors in very early embryonic development remains unknown. Clearly, expression during organogenesis is important for tissue-specific development. However, progesterone receptor (PR) and estrogen receptors (ERalpha, ERbeta) are expressed during early development through the blastocyst stage in mice and other species, and yet are not essential for embryonic viability.