Related Experiment Video
Updated: Jun 30, 2026
09:58
A 3D System for Culturing Human Articular Chondrocytes in Synovial Fluid
Published on: January 31, 2012
[New research on synovial enzymology]
Revue Du Rhumatisme Et Des Maladies Osteo-Articulaires
|May 1, 1976
Summary
Synovial fluid from patients with inflammatory rheumatism showed elevated levels of lysozyme and beta-glucuronidase. These enzyme levels were comparable to previously studied acid phosphatases and lactate dehydrogenase in similar patients.
Area of Science:
- Biochemistry
- Immunology
- Rheumatology
Context:
- Inflammatory rheumatism is characterized by joint inflammation.
- Synovial fluid analysis is crucial for diagnosing and understanding joint diseases.
- Previous research focused on acid phosphatases and lactate dehydrogenase in rheumatic conditions.
Purpose:
- To investigate the levels of lysozyme and beta-glucuronidase in the synovial fluid of patients with inflammatory rheumatism.
- To compare these enzyme levels with those of acid phosphatases and lactate dehydrogenase.
Summary:
- The study found significantly higher concentrations of lysozyme and beta-glucuronidase in the synovial fluid of individuals with inflammatory rheumatism.
- These elevated enzyme levels were found to be comparable to the previously observed levels of acid phosphatases and lactate dehydrogenase in the same patient group.
Impact:
- This research contributes to a better understanding of the biochemical markers associated with inflammatory rheumatism.
- Identifying specific enzyme profiles in synovial fluid may aid in disease diagnosis and monitoring.
- Further research into these enzymes could reveal new therapeutic targets for inflammatory joint diseases.
Related Concept Videos
01:00Enzyme-linked Receptors
Enzyme-linked receptors are proteins that act as both receptor and enzyme, activating multiple intracellular signals. This is a large group of receptors that include the receptor tyrosine kinase (RTK) family. Many growth factors and hormones bind to and activate the RTKs.
Neurotrophin (NT) receptors are a family of RTKs, including trkA, trkB, and trkC (tropomyosin-related kinase) receptors. TrkA is specific for nerve growth factor (NGF), neurotrophin-6, and neurotrophin-7. TrkB binds...
Neurotrophin (NT) receptors are a family of RTKs, including trkA, trkB, and trkC (tropomyosin-related kinase) receptors. TrkA is specific for nerve growth factor (NGF), neurotrophin-6, and neurotrophin-7. TrkB binds...
01:30Enzyme Inhibition
Inhibitors are molecules that reduce enzyme activity by binding to the enzyme. In a normally functioning cell, enzymes are regulated by a variety of inhibitors. Drugs and other toxins can also inhibit enzymes. Some inhibitors bind to the enzyme’s active site, while others inhibit enzymatic activity by binding to other sites on the protein structure.
01:19Enzyme Kinetics
Enzymes speed up reactions by lowering the activation energy of the reactants. The speed at which the enzyme turns reactants into products is called the rate of reaction. Several factors impact the rate of reaction, including the number of available reactants. Enzyme kinetics is the study of how an enzyme changes the rate of a reaction.
Scientists typically study enzyme kinetics with a fixed amount of enzyme in the controlled environment of a test tube. When more reactant, or substrate, is...
Scientists typically study enzyme kinetics with a fixed amount of enzyme in the controlled environment of a test tube. When more reactant, or substrate, is...
01:16Structural Joints: Synovial Joints
Synovial joints are the most common type of joint in the body. A key structural characteristic for a synovial joint is the presence of a joint cavity. This fluid-filled space is where the articulating surfaces of the bones contact each other. Also, unlike fibrous or cartilaginous joints, the articulating bone surfaces at a synovial joint are not directly connected to each other with fibrous connective tissue or cartilage. This gives the bones of a synovial joint the ability to move smoothly...
01:07Development of the Limb Synovial Joints
Joints form during embryonic development in conjunction with the formation and growth of the associated bones. The embryonic tissue that gives rise to all bones, cartilage, and connective tissues of the body is called mesenchyme.
The mesenchymal stem cells differentiate into chondrocytes that form the hyaline cartilage, and later the cartilaginous model of the bone. This model further transforms into a bone. This process is known as endochondral ossification.
During development, the limbs...
The mesenchymal stem cells differentiate into chondrocytes that form the hyaline cartilage, and later the cartilaginous model of the bone. This model further transforms into a bone. This process is known as endochondral ossification.
During development, the limbs...
01:21Acute Pancreatitis II: Pathophysiology
The pathophysiology of acute pancreatitis centers on injury to pancreatic acinar cells, which initiates a cascade of harmful intracellular events.This injury leads to premature activation of trypsinogen to trypsin in the pancreas. Trypsin then activates other digestive enzymes, such as chymotrypsin, elastase, and phospholipase A2, which begin breaking down pancreatic tissue. The resulting autodigestion causes local inflammation, tissue swelling, hemorrhage, and fat necrosis.Injured acinar cells...