Social Media Popularity and Academic Productivity in Academic Plastic Surgery: A Positive Correlation.

BACKGROUND: Social media is a powerful tool that has empowered plastic surgeons to easily collaborate with one another and rapidly publicize research progression. The present study investigates the relationship between academic productivity and social media presence among both integrated and independent plastic surgery programs and their faculty. METHODS: Plastic surgery programs on the American Council of Academic Plastic Surgeons website were included. Faculty were identified via review of each program's website. Following metrics of academic productivity were collected for each faculty member: h-index, i10-index, number of publications, and number of citations. Online review was then conducted to identify faculty and program Instagram and Twitter accounts, and the number of associated followers and posts. RESULTS: Integrated plastic surgery programs were more likely to have an Instagram account (p < 0.001), have higher average faculty h-index (p = 0.027), i10-index (p = 0.027), and number of publications (p = 0.042). A number of Instagram followers were significantly associated with average faculty h-index (p < 0.001), i10-index (p < 0.001), and number of publications (p < 0.001). The number of posts on a program's Instagram significantly predicted average faculty h-index (p < 0.001), i10-index (p < 0.001), and number of publications (p < 0.001). Twitter followers were significantly associated with average faculty h-index (p = 0.0397), i10-index (p = 0.0432), and number of citations (p = 0.00737). CONCLUSIONS: The present study reveals a correlation between metrics of social media popularity and academic productivity of plastic surgeons. We propose that Instagram and Twitter are effective tools with which plastic surgeons may not only publicize their clinical practice, but also rapidly disseminate important innovations among the medical community. Integrated plastic surgery programs and their faculty have significantly higher utilization of social media platforms. The number of followers and posts on a program's Instagram have a significantly positive correlation with average faculty's academic productivity. Social media platforms may empower academic plastic surgeons to disseminate their innovations on a larger scale. NO LEVEL ASSIGNED: This journal requires that authors assign a level of evidence to each submission to which Evidence-Based Medicine rankings are applicable. This excludes Review Articles, Book Reviews, and manuscripts that concern Basic Science, Animal Studies, Cadaver Studies, and Experimental Studies. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

Dephosphorylation of Iqg1 by Cdc14 regulates cytokinesis in budding yeast.

Cytokinesis separates cells by contraction of a ring composed of filamentous actin (F-actin) and type II myosin. Iqg1, an IQGAP family member, is an essential protein in Saccharomyces cerevisiae required for assembly and contraction of the actomyosin ring. Localization of F-actin to the ring occurs only after anaphase and is mediated by the calponin homology domain (CHD) of Iqg1, but the regulatory mechanisms that temporally restrict actin ring assembly are not well defined. We tested the hypothesis that dephosphorylation of four perfect cyclin-dependent kinase (Cdk) sites flanking the CHD promotes actin ring formation, using site-specific alanine mutants. Cells expressing the nonphosphorylatable iqg1-4A allele formed actin rings before anaphase and exhibited defects in myosin contraction and cytokinesis. The Cdc14 phosphatase is required for normal cytokinesis and acts on specific Cdk phosphorylation sites. Overexpression of Cdc14 resulted in premature actin ring assembly, whereas inhibition of Cdc14 function prevented actin ring formation. Cdc14 associated with Iqg1, dependent on several CHD-flanking Cdk sites, and efficiently dephosphorylated these sites in vitro. Of importance, the iqg1-4A mutant rescued the inability of cdc14-1 cells to form actin rings. Our data support a model in which dephosphorylation of Cdk sites around the Iqg1 CHD by Cdc14 is both necessary and sufficient to promote actin ring formation. Temporal control of actin ring assembly by Cdk and Cdc14 may help to ensure that cytokinesis onset occurs after nuclear division is complete.