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Related Concept Videos

Autoimmune Disorders01:29

Autoimmune Disorders

1.9K
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.
Concept and Mechanism of Autoimmune Diseases
The immune...
1.9K
Intrinsically Disordered Proteins02:18

Intrinsically Disordered Proteins

19.6K
Intrinsically disordered proteins are a group of proteins that do not fold into specific three-dimensional structures. Their structural flexibility allows them to complement ordered proteins to perform functions that are inaccessible to rigid structures. They are more common in eukaryotes than prokaryotes and may either be exclusively intrinsically disordered or hybrid proteins, consisting of a mix of ordered and disordered regions. The absence of a rigid structure in these proteins can be...
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Bone Disorders01:29

Bone Disorders

5.5K
Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
5.5K
Disorders of Erythrocytes01:27

Disorders of Erythrocytes

2.3K
Disorders of erythrocytes, or red blood cells (RBCs), include a range of conditions affecting their number, shape, or function.
Erythrocyte disorders can be broadly categorized into two main types: anemic and polycythemic conditions.
A low oxygen-carrying capacity of the blood due to the loss, lower production, or destruction of erythrocytes is termed anemia. Hemorrhagic anemia, for example, occurs when bleeding from an external wound or internal ulcer reduces erythrocyte counts.
On the other...
2.3K
Disorders of Leukocytes01:27

Disorders of Leukocytes

2.0K
Leukocyte disorders can lead to either leukopenia, characterized by an abnormally low leukocyte count, or leukocytosis, marked by a very high leukocyte number.
Leukopenia may result from bone marrow disorders, autoimmune diseases, and infectious diseases. For example, conditions such as multiple myeloma and aplastic anemia can impair the bone marrow's ability to produce adequate leukocytes. Similarly, autoimmune diseases like lupus and viral infections such as HIV can prompt the immune...
2.0K
Other Disorders of Digestive System01:30

Other Disorders of Digestive System

1.5K
The gastrointestinal tract is susceptible to various disorders. If the lower esophageal sphincter is damaged, stomach acid can flow back into the esophagus, causing irritation and inflammation of the lining. This condition is called gastroesophageal reflux disease (known as heartburn) and may cause chest pain and difficulty swallowing. In the stomach, prolonged use of nonsteroidal anti-inflammatory drugs like aspirin, chronic alcohol consumption, bacterial infections such as Helicobacter...
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Related Experiment Video

Updated: Feb 12, 2026

A Rapid, Simple, and Standardized Homogenization Method to Prepare Antigen/Adjuvant Emulsions for Inducing Experimental Autoimmune Encephalomyelitis
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A Rapid, Simple, and Standardized Homogenization Method to Prepare Antigen/Adjuvant Emulsions for Inducing Experimental Autoimmune Encephalomyelitis

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[Paraneoplastic autoimmune disorders].

Makoto Hirokawa1

  • 1Akita University Hospital, Clinical Oncology Center.

Gan to Kagaku Ryoho. Cancer & Chemotherapy
|June 23, 2010
PubMed
Summary
This summary is machine-generated.

Paraneoplastic syndromes are tumor-related symptoms not caused by direct tumor effects. They arise from tumor-secreted factors or immune responses, impacting various body systems and mimicking other conditions.

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Area of Science:

  • Oncology
  • Immunology
  • Nephrology

Context:

  • Paraneoplastic syndromes encompass a diverse group of disorders triggered by cancer.
  • These syndromes manifest through tumor-secreted factors or immune responses against cancer cells.
  • They can affect multiple organ systems, including the nervous, musculoskeletal, hematopoietic, and renal systems.

Purpose:

  • To define paraneoplastic syndromes and elucidate their underlying mechanisms.
  • To highlight the varied clinical presentations, including rheumatic, hematologic, and renal manifestations.
  • To emphasize the importance of recognizing these syndromes for timely cancer diagnosis and management.

Summary:

  • Paraneoplastic syndromes are characterized by symptoms not directly caused by tumor mass.
  • Mechanisms include soluble factors causing endocrinopathies and autoimmune processes affecting various organs.
  • Specific manifestations include paraneoplastic rheumatic diseases, autoimmune hematologic disorders, and glomerular diseases like membranous nephropathy.

Impact:

  • Early recognition of paraneoplastic syndromes can lead to prompt cancer diagnosis.
  • Understanding these syndromes aids in differentiating them from primary autoimmune diseases.
  • Appropriate cancer screening in patients with specific paraneoplastic manifestations, such as nephrotic syndrome, is crucial.