PTH Treatment Increases Cortical Bone Mass More in Response to Compression than Tension in Mice.

Parathyroid hormone (PTH) is an anabolic osteoporosis treatment that increases bone mass and reduces fracture risk. Clinically, the effects of PTH are site-specific, increasing bone mass more at the spine than the hip and not increasing bone mass at the radius. Differences in local loading environment between the spine, hip, and radius may help explain the variation in efficacy, as PTH and mechanical loading have been shown to synergistically increase bone mass.

Laminin-1 induces endocytosis of 67KDa laminin receptor and protects Neuroscreen-1 cells against death induced by serum withdrawal.

Although the function of laminin in the basement membrane is known, the function of soluble "neuronal" laminin is unknown. Since laminin is neuroprotective, we determined whether the soluble laminin-1 induces signaling for neuroprotection via its 67KDa laminin-1 receptor (67LR). Treatment of Neuroscreen-1 (NS-1) cells with laminin-1 or YIGSR peptide, which corresponds to a sequence in laminin-1 β1 chain that binds to 67LR, induced a decrease in the cell-surface expression of 67LR and caused its internalization.

(Unpacking) father involvement in the context of childhood neurodisability research: a scoping review.

Background: In the past thirty years, theoretical and empirical scholarship on father involvement has emerged and firmly established itself. Efforts to define, measure, and explore outcomes related to father involvement in the context of childhood neurodisability are evident but less well established. The purpose of this study was to systematically map empirical studies on father involvement in the context of childhood neurodisability in order to delineate the current state of research and to highlight profitable directions for future research.

Apparent consumption of refined sugar in Australia (1938-2011).

Background/objectives: In Australia, the Australian Bureau of Statistics discontinued collection of apparent consumption data for refined sugars in 1998/1999. The objectives of this study were to update this data series to determine whether it is a reliable data series that reflects consumption of refined sugars, defined as sucrose in the forms of refined or raw sugar or liquified sugars manufactured for human consumption.

Subjects/methods: The study used the same methodology as that used by the Australian Bureau of Statistics to derive a refined sugars consumption estimate each year until the collection was discontinued.

Potential sexual transmission of Trypanosoma cruzi in mice.

Infection with the protozoan parasite Trypanosoma cruzi, the etiologic agent of human Chagas disease, results in life-long infection. Infective trypomastigotes circulate in the bloodstream and have the capacity to infect any cell type, including reproductive tissue. This study sought to assess the potential for sexual transmission of T.