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Vascular Spasm01:16

Vascular Spasm

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The vascular phase, also known as vasospasm, is the initial stage of hemostasis, crucial for preventing excessive bleeding when a blood vessel is injured. After a vessel is cut, nerves in the damaged area trigger pain and other sensory impulses. Simultaneously, the smooth muscles in the vessel wall contract, resulting in a vascular spasm. This contraction reduces the vessel's diameter at the injury site, slowing or stopping blood loss through the vessel wall. Vascular spasms typically last...
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The kidneys are vital organs responsible for filtering and cleaning blood, removing waste products, and regulating electrolyte levels. To perform these essential functions, they require a constant and robust blood supply.
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Autoimmune Disorders01:29

Autoimmune Disorders

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Autoimmune diseases are a group of disorders in which the body's immune system mistakenly attacks its own cells, tissues, and organs. This results from an overactive immune response against substances and tissues normally present in the body. Let's delve into the concept and mechanism of autoimmune diseases from an immune system point of view, explore different causes and examples of such diseases, and discuss potential solutions.
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Nephrotic Syndrome I : Introduction01:24

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Nephrotic Syndrome is a chronic kidney disorder defined by clinical findings such as severe proteinuria, hypoalbuminemia, hyperlipidemia, and edema. These symptoms result from damage to the glomeruli, the kidney’s filtering units, increasing their permeability to proteins.Definition and Meaning:Proteinuria, defined as the loss of more than 3.5 grams of protein per day in adults, is a crucial feature of nephrotic syndrome. This condition is often accompanied by edema, the accumulation of...
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Overview of the Vascular System01:20

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The vascular system comprises an extensive network of arteries, capillaries, and veins. The vascular system can be broadly divided into the blood and lymphatic systems. Typically, blood vessels can be categorized into three histological regions: tunica intima, tunica media, and tunica adventitia. The tunica intima consists of a single layer of endothelial cells attached to the basal lamina. Underlying the basal lamina is a connective tissue layer and an elastic lamina that gives stability and...
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Related Experiment Video

Updated: Mar 13, 2026

Visualizing Impairment of the Endothelial and Glial Barriers of the Neurovascular Unit during Experimental Autoimmune Encephalomyelitis In Vivo
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[Primary central nervous system vasculitis in children].

Marinka Twilt1, Troels Herlin

  • 1troeherl@rm.dk.

Ugeskrift for Laeger
|October 18, 2016
PubMed
Summary

Diagnosing inflammatory brain diseases in children is challenging due to overlapping symptoms. Novel antibodies and advanced imaging aid diagnosis, guiding tailored treatments for better outcomes.

Area of Science:

  • Pediatric Neurology
  • Neuroimmunology
  • Inflammatory Brain Diseases

Background:

  • Inflammatory brain diseases (IBrainDs) in children are increasingly recognized.
  • Overlapping clinical, neuroimaging, and laboratory features often delay diagnosis.
  • Current diagnostic approaches require refinement for timely and accurate identification.

Purpose of the Study:

  • To highlight the diagnostic challenges in pediatric inflammatory brain diseases.
  • To emphasize the importance of novel antibodies in diagnostic evaluation.
  • To discuss advanced diagnostic tools and treatment strategies.

Main Methods:

  • Review of clinical, neuroimaging, and laboratory findings in pediatric IBrainDs.
  • Inclusion of novel antibody discoveries in diagnostic workup.

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  • Utilization of specific neuroradiological tests like conventional angiography and vessel wall enhancement.
  • Consideration of brain biopsy for unclear cases.

    • Main Results:

    • Diagnostic delays are common due to overlapping features.
    • Novel antibodies offer new avenues for diagnostic evaluation.
    • Advanced neuroradiological tests can support diagnosis.
    • Brain biopsy remains crucial for histopathological confirmation in complex cases.

    Conclusions:

    • Timely diagnosis of pediatric IBrainDs requires a comprehensive approach.
    • Integration of novel biomarkers and advanced imaging is essential.
    • Treatment must be pathogenetically tailored for optimal patient outcomes.