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Related Concept Videos

Endocarditis II: Clinical Features of Infective Endocarditis01:25

Endocarditis II: Clinical Features of Infective Endocarditis

Endocarditis can present various clinical features depending on the causative organism and the patient's underlying health conditions. Initially, the clinical features of infective endocarditis develop gradually, presenting with nonspecific symptoms that can be easily mistaken for other illnesses.General SymptomsEarly symptoms of infective endocarditis are fever, chills, weakness, malaise, fatigue, and weight loss. These symptoms reflect the systemic nature of the infection and the body's...
Vascular Spasm01:16

Vascular Spasm

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 for...
Nephrotic Syndrome I : Introduction01:24

Nephrotic Syndrome I : Introduction

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 fluid...
Rheumatic Heart Disease I: Introduction01:23

Rheumatic Heart Disease I: Introduction

Rheumatic heart disease or RHD is a chronic condition that results from rheumatic fever, causing permanent damage to the heart valves.Etiology and Risk FactorsIt primarily arises from rheumatic fever, an inflammatory disease that can develop after untreated or inadequately treated group A streptococcal (GAS) pharyngitis. Streptococcus spreads through direct contact with oral or respiratory secretions. While the bacteria are the causative agents, factors like malnutrition, overcrowding, poor...
Myocarditis I: Introduction01:21

Myocarditis I: Introduction

Myocarditis is inflammation of the myocardium, which is the muscular layer of the heart.EtiologyMyocarditis has a diverse etiology, including a wide range of infectious and non-infectious causes:Infectious CausesViral: Common viruses include Coxsackie A and B, adenovirus, parvovirus B19, enteroviruses, and influenza A.Bacterial: Examples include infections caused by Streptococcus, Staphylococcus, and Mycoplasma species.Rickettsial: Infections like Rocky Mountain spotted fever can result in...
Cytotoxic Edema: Pathophysiology01:21

Cytotoxic Edema: Pathophysiology

Cytotoxic edema is a form of cerebral edema characterized by intracellular swelling of neurons, astrocytes, and other glial cells. It develops when the mechanisms responsible for maintaining ionic gradients across the cell membrane become impaired. Under normal physiological conditions, the sodium–potassium ATPase actively transports sodium ions out of the cell and potassium ions into the cell, preserving osmotic balance and enabling electrical signaling. This pump requires a continuous supply...

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Related Experiment Videos

[Vasculitis syndrome].

Hidehiro Yamada1, Shoichi Ozaki

  • 1Division of Rheumatology and Allergology, Department of Internal Medicine, St. Marianna Medical School.

Nihon Rinsho. Japanese Journal of Clinical Medicine
|March 14, 2009
PubMed
Summary

Biologic therapies offer new hope for inflammatory arthritis and vasculitis, particularly for patients resistant to standard treatments. While promising, their precise use and potential side effects require careful consideration and further research.

Area of Science:

  • Immunology
  • Rheumatology
  • Vascular Medicine

Context:

  • Biologic therapies targeting the immune system have transformed inflammatory arthritis treatment.
  • Knowledge of vascular inflammation pathogenesis has expanded, leading to biologic use in vasculitis.

Purpose:

  • To explore the role of biologic therapies in treating primary systemic vasculitis.
  • To assess the current understanding and future directions for biologics in ANCA-associated vasculitis.

Summary:

  • Biologics show potential for refractory ANCA-associated vasculitis, improving understanding of vascular inflammation.
  • Specific indications for TNFalpha inhibitors and anti-CD20 monoclonal antibodies are not yet defined.
  • Cautious use in trial settings is advised due to potential adverse effects.

Related Experiment Videos

Impact:

  • Biologics represent a significant advancement in managing complex inflammatory and autoimmune diseases.
  • Further research is needed to establish clear guidelines for biologic use in vasculitis.
  • Improved understanding of disease mechanisms through targeted therapies.