Treatment of Obesity Before, During, and After Pregnancy: Time for Obstetricians to Get Involved.

Importance: Obesity is a major public health concern that is associated with serious health risks and consequences for people who want to be, are, or have been pregnant.

Objective: We will describe the implications and consequences of obesity, and describe the factors fueling obesity's escalating prevalence. We will describe new treatment approaches including glucagon-like peptide-1 agonists, which may be an effective strategy for achieving weight loss and for improving the health of people who have been, are, or want to be pregnant.

Quantum Mechanical Assessment of Nitrosamine Potency.

Nitrosamines are in the cohort of concern (CoC) as determined by regulatory guidance. CoC compounds are considered highly potent carcinogens that need to be limited below the threshold of toxicological concern, 1.5 μg/day.

Identification, trace level quantification, and assessment of potential genotoxic impurity in Famotidine.

Potential genotoxic impurities in medications are an increasing concern in the pharmaceutical industry and regulatory bodies because of the risk of human carcinogenesis. To prevent the emergence of these impurities, it is crucial to carefully examine not only the final product but also the intermediates and key starting material (KSM) used in drug synthesis. During the related substances analysis of KSM of Famotidine, an unknown impurity in the range of 0.

Conformational Sampling over Transition-Metal-Catalyzed Reaction Pathways: Toward Revealing Atroposelectivity.

The Py-Conformational-Sampling (PyCoSa) technique is introduced as a systematic computational means to sample the configurational space of transition-metal-catalyzed stereoselective reactions. When applied to atroposelective Suzuki-Miyaura coupling to create axially chiral biaryl products, the results show a range of mechanistic possibilities that include multiple low-energy channels through which C-C bonds can be formed.