EBV-positive mucocutaneous ulcer in a patient with systemic lupus erythematosus

Herein, we present a protocol to demonstrate the utility of dermoscopy in rheumatic diseases. In addition, we described the dermoscopic manifestations of discoid lupus erythematosus skin...

The transfer of bm12 lymphocytes into a C57BL/6 recipient is an established model of systemic lupus erythematosus. Here we describe how to initiate disease using this model and how to characterize T follicular helper cells, germinal center B cells and plasma cells by flow...

Skin lesions are common and important features in many rheumatic diseases, and biopsy with pathological analysis plays a critical role in diagnosis. This article provides a detailed overview of the standardized skin biopsy procedure and, using discoid lupus erythematosus as an example, highlights the essential role of dermatopathology in diagnosing rheumatic...

The Hartley oscillator is a positive feedback system that sustains oscillations by feeding the output back to the input in phase, thereby reinforcing the signal. Positive feedback systems can be viewed as negative feedback systems with inverted feedback signals. In these systems, the root locus encompasses all points on the s-plane where the angle of the system transfer function equals 360 degrees.
The construction rules for the root locus in positive feedback systems are similar to those in...

In pandemic times, medical staff is becoming a key resource in fighting the infection. To achieve the best medical care, relevant techniques and procedures have to be taught to medical staff while reducing the risk of infection. COVID-19 patients often develop an acute respiratory distress syndrome with respiratory failure. Prone positioning is established as a core component of management in COVID-19 patients, to enable ventilation of a greater lung area and thereby improve gas exchange.

This article demonstrates a Chinese herbal retention enema method for treating ulcerative colitis, which can effectively improve patients' clinical symptoms and quality of...