To evaluate the risk of severe infection and infection-related mortality among patients with newly diagnosed systemic lupus erythematosus (SLE). We conducted an age- and gender- matched cohort study of all patients with incident SLE between January 1, 1997 and March 31, 2015 using administrative health data from British Columbia, Canada. Primary outcome was the first severe infection after SLE onset necessitating hospitalization or occurring during hospitalization. Secondary outcomes were total number of severe infections and infection-related mortality. We identified 5,169 SLE patients and matched them with 25,845 non-SLE individuals from the general population, yielding 955 and 1,986 first severe infections during 48,367 and 260,712 person-years follow-up, respectively. The crude incidence rate ratios for first severe infection and infection-related mortality were 2.59 (95% CI, 2.39-2.80) and 2.20 (95% CI, 1.76-2.73), respectively. The corresponding adjusted hazard ratios were 1.82 (95% CI 1.66-1.99) and 1.61 (95% CI, 1.24-2.08). SLE patients had an increased risk of a greater total number of severe infections with crude rate ratio of 3.24 (95% CI, 3.06-3.43) and adjusted rate ratio of 2.07 (95% CI, 1.82-2.36). SLE is associated with increased risks of first severe infection (1.8-fold), a greater total number of severe infections (2.1-fold) and infection-related mortality (1.6-fold). SLE is associated with increased risks of first severe infection (1.8-fold), a greater total number of severe infections (2.1-fold) and infection-related mortality (1.6-fold). Recent evidence suggests that "vulnerable plaques," which have received intense attention as underlying mechanism of acute coronary syndromes over the decades, actually rarely rupture and cause clinical events. Superficial plaque erosion has emerged as a growing cause of residual thrombotic complications of atherosclerosis in an era of increased preventive measures including lipid lowering, anti-hypertensive therapy, and smoking cessation. The mechanisms of plaque erosion remain poorly understood, and we currently lack validated effective diagnostics or therapeutics for superficial erosion. Eroded plaques have a rich extracellular matrix, an intact fibrous cap, sparse lipid, and few mononuclear cells, but do harbor neutrophil extracellular traps (NETs). We recently reported that NETs amplify and propagate the endothelial damage at the site of arterial lesions that recapitulate superficial erosion in mice. We showed that genetic loss of protein arginine deiminase (PAD)-4 function inhibited NETosis and preser erosion. NPs directed to Col IV show selective uptake and delivery of their payload to experimentally eroded regions, illustrating their translational potential. Our results further support the role of PAD4 and NETs in superficial erosion. To evaluate the association between cigarette smoking and the odds of IgG4-related disease (IgG4-RD). We performed a case-control study of patients with IgG4-RD, compared in a 15 ratio with age-, race- and sex-matched controls. We included cases evaluated at Massachusetts General Hospital, a hospital within the Mass General Brigham (MGB) System. Controls were identified from the MGB Biobank. Smoking status at date of IgG4-RD diagnosis or corresponding index date was determined. Conditional logistic regression was used to estimate the association between cigarette smoking and odds of having IgG4-RD. There were 234 IgG4-RD cases and 1,170 controls. Mean age (59 years), sex (62% male), and race (75% white) were well-balanced. IgG4-RD cases were more likely to be current smokers compared with controls (25 [11%] vs 70 [6%], OR 1.79 [95% CI 1.08-2.95]). This association was strongest among female cases (13 [14%] vs 19 [4%], OR 3.79 [95% CI 1.71-8.39]) and those with retroperitoneal fibrosis (RPF, 13 [28%] vs 13 [6%], OR 6.93 [95% CI 2.78-17.26]) or normal IgG4 concentrations (21 [21%] vs 21 [4%], OR 6.22 [95% CI 3.09-12.49]). When RPF cases were excluded, there was no longer an association between current smoking and the odds of having IgG4-RD (12 [6%] vs 57 [6%], OR 0.95 [95% CI 0.49-1.86]). Being a current smoker is associated with greater odds of having IgG4-RD, especially among women and those with RPF or normal IgG4 concentrations. Current smoking is the first recognized modifiable risk factor for IgG4-RD. Being a current smoker is associated with greater odds of having IgG4-RD, especially among women and those with RPF or normal IgG4 concentrations. Current smoking is the first recognized modifiable risk factor for IgG4-RD.Evidence from observational studies may be considered complementary to that of randomized controlled trials (RCTs), particularly when assessing rare outcomes of drug therapies. The sodium glucose co-transporter-2 (SGLT-2) inhibitors are a novel class of antidiabetics that has been linked to an increased risk of diabetic ketoacidosis (DKA). In this study, we conducted a systematic review and meta-analyzed data from RCTs (n=18) and observational (n=7) studies separately, to assess the consistency of the magnitude of association between SGLT-2 inhibitors and DKA. We also illustrate the strengths and weakness of the two designs. Results from RCTs and observational studies consistently show almost a doubling in the risk of DKA in patients using an SGLT-2 inhibitor compared to placebo or active comparator. Using a random-effects model, the pooled relative risk [RR], (95% confidence interval [CI]) was 2.08, (95%CI 1.28, 3.40) from placebo-controlled RCTs and was 0.82 (95%CI 0.25, 2.68) from active-comparator RCTs. The pooled adjusted hazard ratio from observational studies was 1.74, (95%CI 1.28, 2.38). Notably, the two designs complement each other in several domains, including external and internal validity and power. This demonstrates the need for both sources for a more comprehensive evidence when assessing rare adverse events.An 88-year-old man presented with delirium, and subsequently developed hoarseness and oropharyngeal dysphagia. This was due to skull-based osteomyelitis from necrotizing otitis externa (NOE), causing lower cranial nerve (X, XII) palsies and venous sinus thrombosis. https://www.selleckchem.com/products/10074-g5.html Diagnosis was delayed as the patient reported no otalgia, had an almost normal looking external auditory canal and was not diabetic. He deteriorated and died despite intravenous antibiotics. We need a high index of suspicion for NOE and its complications in patients presenting with otolaryngeal symptoms.