The Findings: Breastfeeding women who return to work may face daunting challenges as they figure out their rights in the workplace. The investigators involved in this study reported thatPhiladelphia and New York are just 2 of 151 cities from across the United States that have workplace regulations outlining protections for a nursing mother who wants to breastfeed or express milk at her place of employment. Their findings suggest that the limitations of existing federal and state legislation are not met by protections at the city-level. There is a “paucity of city-level legislation to protect the employed breastfeeding and/or pumping employee.”
Tag Archive: Snapshot Science
The Findings: Children and adults treated with five classes of oral antibiotics have a significantly higher risk of developing kidney stones. The five classes include oral sulfas, cephalosporins, fluoroquinolones, nitrofurantoin, and broad-spectrum penicillins. Patients who received sulfa drugs were more than twice as likely as those not exposed to antibiotics to have kidney stones. For broad-spectrum penicillins, the increased risk was 27 percent higher. The strongest risks appeared at younger ages and among patients most recently exposed to antibiotics. The risk of kidney stones decreased over time but remained elevated several years after antibiotic use.
Researchers gained new insights into the heart problems that are the second leading cause of death in patients with Huntington’s disease (HD). An incurable, inherited disease with progressive loss of brain cells and motor function, HD occurs when a defective gene produces repeated copies of a protein called huntingtin, or HTT. The mutant HTT (mHTT) protein disrupts multiple fundamental cellular processes along the mTORC1 pathway that promotes cell growth and metabolism. The study team described how decreased mTORC1 activity contributed to the development of heart disease with stress in mouse models of HD. By restoring cardiac mTORC1 activity, the researchers improved the animals’ heart function and survival over the course of the study.
Researchers identified a genetic mutation in CYP3A4 that is linked to vitamin D-dependent rickets (VDDR), a childhood disorder associated with impaired growth and skeletal mineralization. Scientists already knew about two other genetic forms of VDDR, but this third kind is caused by a gain-in-function mutation — a random genetic change that confers a new function on a gene — that leads to accelerated inactivation of vitamin D metabolites. This is a new insight into vitamin D metabolism.
A cardiac intensive care unit (CICU) filled with tiny infants connected to collections of tubes and buzzing monitors can be an intimidating and overwhelming place for a mother who is worried about her newborn with congenital heart disease (CHD). A Children’s Hospital of Philadelphia team of nurse researchers conducted a qualitative study in which mothers of babies who have a complex heart condition described the post-diagnostic period, surgery, and the CICU stay as extremely stressful. The researchers also examined mothers’ coping mechanisms, and they identified mindfulness as a potential helpful early intervention tool to reduce mothers’ stress.
The human genome provides a precise, biological blueprint of life. To implement this blueprint correctly, the genome must be read with great precision, but it’s impossible for this process to be completely error-free. Mistakes during transcription — random errors in how DNA sequences are copied for a gene to be expressed — can happen any time in any number of ways.