The Bethesda Classification for Thyroid Fine Needle Aspiration: A Predictor or an Alarmist?

Thyroid malignancies comprise only 2 per cent of all cancers. Yet the incidence of thyroid cancers has been increasing faster than other malignancies, likely due to increased screening and surveillance of thyroid nodules. The Bethesda system represents the preferred method of evaluating thyroid nodules for malignancy using fine needle aspiration (FNA).

Effects of the new Accreditation Council for Graduate Medical Education work hour rules on surgical interns: a prospective study in a community teaching hospital.

Background: On July 1, 2011, the Accreditation Council for Graduate Medical Education (ACGME) eliminated 30-hour call in an attempt to improve resident wakefulness. We surveyed interns on the Newton Wellesley Hospital (NWH) surgery service before and after the transition from Q4 overnight call to a night float schedule.

Methods: For 15 weeks, interns completed weekly surveys including the Epworth Sleepiness Scale (ESS).

Glutathione peroxidase-1 regulates mitochondrial function to modulate redox-dependent cellular responses.

Glutathione peroxidase-1 (GPx-1) is a selenocysteine-containing enzyme that plays a major role in the reductive detoxification of peroxides in cells. In permanently transfected cells with approximate 2-fold overexpression of GPx-1, we found that intracellular accumulation of oxidants in response to exogenous hydrogen peroxide was diminished, as was epidermal growth factor receptor (EGFR)-mediated Akt activation in response to hydrogen peroxide or EGF stimulation. Knockdown of GPx-1 augmented EGFR-mediated Akt activation, whereas overexpression of catalase decreased Akt activation, suggesting that EGFR signaling is regulated by redox mechanisms.