Perifollicular Melanocyte Regeneration in Bullous Pemphigoid.

Bullous pemphigoid (BP) is an autoimmune skin disorder that causes fluid-filled blisters to appear on various body parts, often preceded by urticaria and pruritis. This case report describes the perifollicular melanocyte regeneration within diseased areas in a skin of color patient with BP. By reviewing the various pathologies that can result in melanocyte destruction and the basic science of melanocyte regeneration, we can better identify and explain this phenomenon to patients and lead to earlier diagnoses.

A Modern History RAAS Inhibition and Beta Blockade for Heart Failure to Underscore the Non-equivalency of ACEIs and ARBs.

Beta blockers and renin-angiotensin-aldosterone-inhibitors (RAAS-i) including angiotensin-converting enzyme inhibitors (ACEIs) and angiotensin II receptor blockers (ARBs) have been a mainstay of guideline-based medical therapy for heart failure with reduced ejection fraction (HFrEF) for decades. However, initial evidence supporting each of the aforenoted class of drug for heart failure indications was largely found independently of the other two classes with the exception of the addition of BBs to ACEIs. In the initial ACEI trials for HFrEF, few participants were on BBs as BBs were seen as contraindicated in HFrEF at the time.

The significance of electrocardiographic changes without echocardiographic evidence of segmental wall motion abnormalities in patients undergoing dobutamine stress echocardiography.

Ischemic ECG changes during dobutamine stress echocardiography (DSE) have been reported to have low sensitivity and specificity for detecting myocardial ischemia in the absence of wall motion abnormalities on echocardiography. We present a case of a renal transplant candidate with severe multivessel disease who had ST depressions without any wall motion abnormalities on DSE. Certain studies have shown the sensitivity of DSE is lower in patients with left ventricular hypertrophy and/or end stage renal disease, but the significance of ischemic ECG changes with no evidence of wall motion abnormalities in these patients has not been well studied.

Risk Assessment of Stroke in Patients with Atrial Fibrillation: Current Shortcomings and Future Directions.

Atrial fibrillation is a well-known risk factor for cardioembolic stroke; a number of risk stratification scoring systems have been developed to help differentiate which patients would stand to benefit from anticoagulation. However, these scoring systems cannot be utilized in patients whose atrial fibrillation has not been diagnosed. As implantable cardiac monitors become more prevalent, it becomes possible to identify occult, subclinical atrial fibrillation.

Erectile dysfunction as a marker for cardiovascular disease diagnosis and intervention: a cost analysis.

Introduction: Erectile dysfunction (ED) is a risk factor for cardiovascular disease (CVD). We examine the costs of screening men with ED for CVD risk factors and the cost savings of treating these at risk men.

Aim: This study aims to evaluate the effect of screening men presenting with ED for CVD risk factors and to determine the cost effectiveness of this screening protocol.

Structural and biochemical analyses of alanine racemase from the multidrug-resistant Clostridium difficile strain 630.

Clostridium difficile, a Gram-positive, spore-forming anaerobic bacterium, is the leading cause of infectious diarrhea among hospitalized patients. C. difficile is frequently associated with antibiotic treatment, and causes diseases ranging from antibiotic-associated diarrhea to life-threatening pseudomembranous colitis.

Stasis dermatitis as a complication of recurrent levofloxacin-associated bilateral leg edema.

Introduction: Several drugs have been associated with the development of peripheral edema. Leg edema can result in dermatitis of the lower extremities. We describe levofloxacin-induced peripheral leg edema, which progressed to stasis dermatitis.