Medical Degree Disparity Among Authors in Obstetrics and Gynecology Journals.

CONTEXT: With the transition to a single accreditation system for graduate medical education, the scholarly activity among core faculty in osteopathic and allopathic residency programs has come under scrutiny. Currently, major differences in scholarly activity requirements exist between core faculty in obstetrics and gynecology residencies accredited by the Accreditation Council for Graduate Medical Education and those accredited by the American Osteopathic Association. OBJECTIVE: To determine whether there is a disparity between osteopathic and allopathic physicians among authors with original research published in 4 high-impact obstetrics and gynecology journals during 4 select years. METHODS: The authors reviewed Obstetrics & Gynecology (Obstet Gynecol), the American Journal of Obstetrics and Gynecology (Am J Obstet Gynecol), Fertility and Sterility (Fertil Steril), and Menopause for the degree designation of the first and senior (last) author of each original manuscript for the years of 2000, 2005, 2010, and 2015. Data were analyzed using simple descriptive statistics and linear regression. RESULTS: In total, 3311 articles and 5909 authors were reviewed. Of these authors, 0.80% (47) had a DO degree. Of 1692 authors with dual advanced degrees, only 0.53% (9) had a DO degree. On subgroup analysis of each journal, 0.87% (13 of 1494) of identified authors in Obstet Gynecol, 1.03% (21 of 2038) in Am J Obstet Gynecol, 0.44% (9 of 2030) in Fertil Steril, and 2.20% (4 of 347) in Menopause were osteopathic physicians. During the years studied, no statistically significant trend could be established for first or senior author publication by osteopathic physicians over time, for all 4 journals or for any individual journal. CONCLUSION: Very few osteopathic physicians have served as either the first or the senior author in articles published in Obstet Gynecol, Am J Obstet Gynecol, Fertil Steril, or Menopause during the years studied, and no trend was seen for increased publication by osteopathic physicians in these journals over time.

Cell wall composition and penetration resistance against the fungal pathogen Colletotrichum higginsianum are affected by impaired starch turnover in Arabidopsis mutants.

Penetration resistance represents the first level of plant defense against phytopathogenic fungi. Here, we report that the starch-deficient Arabidopsis thaliana phosphoglucomutase (pgm) mutant has impaired penetration resistance against the hemibiotrophic fungus Colletotrichum higginsianum. We could not determine any changes in leaf cutin and epicuticular wax composition or indolic glucosinolate levels, but detected complex alterations in the cell wall monosaccharide composition of pgm. Notably, other mutants deficient in starch biosynthesis (adg1) or mobilization (sex1) had similarly affected cell wall composition and penetration resistance. Glycome profiling analysis showed that both overall cell wall polysaccharide extractability and relative extractability of specific pectin and xylan epitopes were affected in pgm, suggesting extensive structural changes in pgm cell walls. Screening of mutants with alterations in content or modification of specific cell wall monosaccharides indicated an important function of pectic polymers for penetration resistance and hyphal growth of C. higginsianum during the biotrophic interaction phase. While mutants with affected pectic rhamnogalacturonan-I (mur8) were hypersusceptible, penetration frequency and morphology of fungal hyphae were impaired on pmr5 pmr6 mutants with increased pectin levels. Our results reveal a strong impact of starch metabolism on cell wall composition and suggest a link between carbohydrate availability, cell wall pectin and penetration resistance.