Positive Depression Screening at the First Prenatal Visit in a Low-Income Primarily Black Population.

This study documents prevalence of positive depression screens at the first prenatal visit in an urban, low-income, and primarily Black population as part of initiatives to strengthen mental health services in a region with high rates of race disparities in infant and maternal mortality. We conducted a cross-sectional chart review of 500 patients, collecting demographics, medical histories, and scores of the Edinburgh Postnatal Depression Scale (EPDS), the instrument recommended for use during pregnancy by national United States organizations. Of those with a completed EPDS (n=414), 32% screened positive (n=131).

PAK2 links cell survival to mechanotransduction and metabolism.

Too little or too much force can trigger cell death, yet factors that ensure the survival of cells remain largely unknown. Here, we demonstrate that E-cadherin responds to force by recruiting and activating p21-activated protein kinase 2 (PAK2) to allow cells to stiffen, metabolize, and survive. Interestingly, PAK2 activation and its control of the apoptotic response are specific for the amplitude of force applied.

Linking E-cadherin mechanotransduction to cell metabolism through force-mediated activation of AMPK.

The response of cells to mechanical force is a major determinant of cell behaviour and is an energetically costly event. How cells derive energy to resist mechanical force is unknown. Here, we show that application of force to E-cadherin stimulates liver kinase B1 (LKB1) to activate AMP-activated protein kinase (AMPK), a master regulator of energy homeostasis.

Interplay between tight junctions & adherens junctions.

Cell-cell adhesions are critical for the development and maintenance of tissues. Present at sites of cell-cell contact are the adherens junctions and tight junctions. The adherens junctions mediate cell-cell adhesion via the actions of nectins and cadherins.