Q and A: about health and research

A short explanation: Researchers found that areas in the brain where microglia lose the receptor P2Y12R often coincide with places where blood vessels are inflamed or damaged. This suggests that microglial changes are closely linked to vascular inflammation in the brain . When blood vessels become inflamed, less oxygen and nutrients reach neurons , and inflammatory molecules can leak into the surrounding brain tissue . In response, microglia become activated and alter their normal behavior , which can disrupt the signaling between neurons. These changes interfere with how neurons communicate with each other, leading to cognitive symptoms. As a result, people may experience slow thinking, poor concentration, memory issues, and mental fatigue . Therefore, brain fog is often thought to arise from disrupted brain signaling caused by inflammation and reduced blood flow in the brain’s blood vessels .  Read publication: Microglia dysfunction, neurovascular inflammation and focal neuropa...

Introduction Urticaria, commonly known as hives, is a frequent dermatological condition characterized by transient wheals, itching, and sometimes angioedema. While most cases are benign and self-limited, certain forms of urticaria may signal a more complex underlying disease. Two clinically important conditions that present with persistent urticarial lesions are chronic urticaria (CU) and hypocomplementemic urticarial vasculitis syndrome (HUVS) . Although they may appear similar clinically, these disorders differ significantly in pathophysiology, diagnostic criteria, systemic involvement, and management. Proper differentiation is critical because HUVS represents a systemic autoimmune vasculitis with potentially serious organ involvement, whereas chronic urticaria is primarily a mast cell–mediated skin disorder. Chronic Urticaria Definition and Epidemiology Chronic urticaria is defined as recurrent episodes of hives, angioedema, or both lasting more than six weeks . Symptoms ofte...