Effects of the Affordable Care Act on Contraception, Pregnancy, and Pregnancy Termination Rates.

Objective: To investigate the effects of the Affordable Care Act (ACA) and its elimination of cost sharing on contraception utilization, pregnancy rates, and abortion rates.

Methods: We conducted a retrospective cohort study within a health care system serving more than 4.5 million insured members across 21 medical centers and 250 clinics.

Engineered enzymes for enantioselective nucleophilic aromatic substitutions.

Nucleophilic aromatic substitutions (SAr) are amongst the most widely used processes in the pharmaceutical and agrochemical industries, allowing convergent assembly of complex molecules through C-C and C-X (X = O, N, S) bond formation. SAr reactions are typically carried out using forcing conditions, involving polar aprotic solvents, stoichiometric bases and elevated temperatures, which do not allow for control over reaction selectivity. Despite the importance of SAr chemistry, there are only a handful of selective catalytic methods reported that rely on small organic hydrogen-bonding or phase-transfer catalysts.

The burden of all-cause mortality following influenza-associated hospitalizations, FluSurv-NET, 2010-2019.

Background: While the estimated number of U.S. influenza-associated deaths is reported annually, detailed data on the epidemiology of influenza-associated deaths, including the burden of in-hospital versus post-hospital discharge deaths are limited.

Effects of the Affordable Care Act on Contraception, Pregnancy, and Pregnancy Termination Rates.

Objective: To investigate the effects of the Affordable Care Act (ACA) and its elimination of cost-sharing on contraception utilization, pregnancy rates, and abortion rates.

Methods: We conducted a retrospective cohort study within a healthcare system serving over 4.5 million insured members across 21 medical centers and 250 clinics.

Phages reconstitute NAD to counter bacterial immunity.

Bacteria defend against phage infection through a variety of antiphage defence systems. Many defence systems were recently shown to deplete cellular nicotinamide adenine dinucleotide (NAD) in response to infection, by cleaving NAD into ADP-ribose (ADPR) and nicotinamide. It was demonstrated that NAD depletion during infection deprives the phage of this essential molecule and impedes phage replication.