Double negative (DN) T cells are expanded in patients with systemic lupus erythematosus (SLE) and stimulate autoantibody production as efficiently as CD4+ T cells. In this study, we demonstrate that DN T cells from patients with SLE produce significant amounts of IL-17 and IFN-γ, and expand when stimulated in vitro with an anti-CD3 Ab in the presence of accessory cells. Furthermore, IL-17+ and DN T cells are found in kidney biopsies of patients with lupus nephritis. Our findings establish that DN T cells produce the inflammatory cytokines IL-17 and IFN-γ, and suggest that they contribute to the pathogenesis of kidney damage in patients with SLE.

IMPORTANCE Patients undergoing hemodialysis have an annual mortality rate exceeding 20%, comparable to many types of cancer. Past research has shown that patients with cancer overestimate their likelihood of survival relative to their physicians, but this relationship has not been examined in patients with noncancer diagnoses. Perceptions of prognosis and transplant candidacy may influence goals of care.OBJECTIVES To compare the perceptions of hemodialysis patients and their nephrologists concerning prognosis and the likelihood of transplant; to follow actual survival; and to explore the relationship between patients' expectations and their goals of care.DESIGN We completed a medical record abstraction to estimate 1-year mortality risk among patients who underwent dialysis at any time from November 1, 2010, through September 1, 2011. We then conducted in-person interviews with eligible patients whose predicted 1-year mortality, based on validated prognostic tools, was at least 20%. We also interviewed their nephrologists. We compared patients' and physicians' expectations about 1-and 5-year survival and transplant candidacy and measured the association between patients' expectations and goals of care. We then followed actual survival using Kaplan-Meier methods.SETTING AND PARTICIPANTS Two dialysis units in Boston. Two hundred seven patients undergoing hemodialysis included in the medical record review, with 62 eligible patients interviewed.MAIN OUTCOMES AND MEASURES Predicted 1-year mortality risk using validated prognostic tools; actual survival; patients' and physicians' expectations about 1-year survival and likelihood of transplant; and patients' goals of care. RESULTSOf the 207 hemodialysis patients, 72.5% had a predicted 1-year mortality of at least 20%. Of the 80 patients eligible for interview, 62 participated (response rate, 78%). Patients were significantly more optimistic than their nephrologists about 1-and 5-year survival (P < .001 for both) and were more likely to think they were transplant candidates (37 [66%] vs 22 [39%] [P = .008]). Of the 81% of patients reporting a 90% chance or greater of being alive at 1 year, 18 (44%) preferred care focused on extending life, even if it meant more discomfort, compared with 1 (9%) among patients reporting a lower chance of survival (P = .045). Actual survival was 93% at 1 year but decreased to 79% by 17 months and 56% by 23 months. CONCLUSIONS AND RELEVANCEHemodialysis patients are more optimistic about prognosis and transplant candidacy than their nephrologists. In our sample, patients' expectations about 1-year survival were more accurate than those of their nephrologists, but their longer-term survival expectations dramatically overestimated even their 2-year survival rates. Patients' prognostic expectations are associated with their treatment preferences. Our findings suggest the need for interventions to help providers communicate effectively with patients about prognosis.

Coal mining remains a sizable industry, with millions of working and retired coal miners worldwide. This article provides an update on recent advances in the understanding of respiratory health issues in coal miners and focuses on the spectrum of disease caused by inhalation of coal mine dust, termed coal mine dust lung disease. In addition to the historical interstitial lung diseases (coal worker's pneumoconiosis, silicosis, and mixed dust pneumoconiosis), coal miners are at risk for dust-related diffuse fibrosis and chronic airway diseases, including emphysema and chronic bronchitis. Recent recognition of rapidly progressive pneumoconiosis in younger miners, mainly in the eastern United States, has increased the sense of urgency and the need for vigilance in medical research, clinical diagnosis, and exposure prevention. Given the risk for disease progression even after exposure removal, along with few medical treatment options, there is an important role for chest physicians in the recognition and management of lung disease associated with work in coal mining.

Despite the lack of development of detectable resistance, MRSA exposed to vancomycin for prolonged periods may begin to develop vancomycin tolerance and decreased autolysis. In addition, suppression of agr function appears to end after vancomycin is stopped. Whether these changes are prerequisites for attenuated vancomycin efficacy and the development of glycopeptide resistance warrants further study. The development of vancomycin resistance may be more difficult under conditions where vancomycin serum concentrations are maintained >10 mg/L.