Shared Decision Making in Central Centrifugal Cicatricial Alopecia.

Background: Central centrifugal cicatricial alopecia (CCCA) is a primary lymphocytic scarring alopecia which occurs predominantly in Black middle-aged women.1,2 The benefits and prevalence of shared decision-making (SDM) models for CCCA patients have yet to be studied. Our study investigates the role of SDM in the management of CCCA.

Long-Term Experimental Manipulation of Atmospheric Sulfate Deposition to a Peatland: Response of Methylmercury and Related Solute Export in Streamwater.

Changes in sulfate (SO) deposition have been linked to changes in mercury (Hg) methylation in peatlands and water quality in freshwater catchments. There is little empirical evidence, however, of how quickly methyl-Hg (MeHg, a bioaccumulative neurotoxin) export from catchments might change with declining SO deposition. Here, we present responses in total Hg (THg), MeHg, total organic carbon, pH, and SO export from a peatland-dominated catchment as a function of changing SO deposition in a long-term (1998-2011), whole-ecosystem, control-impact experiment.

Diverse Communities of Microorganisms Methylate Mercury in Freshwater Sediments Subjected to Experimental Sulfate Loading.

Methylmercury (MeHg) is a bioaccumulative neurotoxin produced by certain sulfate-reducing bacteria and other anaerobic microorganisms. Because microorganisms differ in their capacity to methylate mercury, the abundance and distribution of methylating populations may determine MeHg production in the environment. We compared rates of MeHg production and the distribution of genes in epilimnetic sediments from a freshwater lake that were experimentally amended with sulfate levels from 7 to 300 mg L.