Origin and raw materials
All immunological agents have a strictly biological origin. Their primary source is biological material obtained from humans.
Depending on the production technology and the required end product, the raw materials may include:
- Whole donor blood.
- Blood serum.
- Donor blood plasma.
Types of agents
According to the classification, immunological agents are divided into several main groups based on their composition and target:
- γ-globulins (gamma-globulins). These are agents aimed at combating specific pathogens or their toxins. They include:
- Anti-staphylococcal immunoglobulin.
- Anti-tetanus immunoglobulin.
- Anti-measles immunoglobulin.
- Tick-borne encephalitis immunoglobulin.
- Complex immune agents. A prominent representative of this group is normal human immunoglobulin. Its key feature is that it contains multiple classes of protective antibodies simultaneously, namely the combination: IgG + IgA + IgM.
- Specific immunoglobulins. These are highly targeted agents with a high concentration of protective proteins against a specific infection.
Features of specific immunoglobulins
Specific immunoglobulins (e.g., human anti-staphylococcal immunoglobulin or anti-tetanus immunoglobulin) require special conditions for raw material collection.
They are manufactured exclusively from the plasma of donors whose high antibody titer against a specific disease has been laboratory-confirmed. Such a high titer is achieved in two ways:
- The donor has previously recovered from the respective infectious disease.
- The donor was specially immunized (vaccinated) to produce the required antibodies.
Dosage forms and routes of administration
Immunological agents are available in a standardized form—in ampoules (liquid form or lyophilizate for reconstitution, depending on the specific agent).
Routes of administration into the patient's body:
- Intramuscularly (standard route for many gamma-globulins).
- Intravenously (used for relevant severe indications when immediate delivery of antibodies into the systemic circulation is required).
Briefly: answers to topical questions
What specific gamma-globulins are used in surgical practice?
The following specific gamma-globulins are used in surgical practice:
- Anti-staphylococcal gamma-globulin — for the treatment and prevention of staphylococcal infections.
- Anti-tetanus gamma-globulin — for the prevention and treatment of tetanus.
How does normal human immunoglobulin differ from specific immunoglobulin?
Normal human immunoglobulin differs from specific immunoglobulin in its composition and target of action.
| Characteristic | Normal immunoglobulin | Specific immunoglobulin |
|---|---|---|
| Composition | A broad range of antibodies against bacteria and viruses (contains IgG, IgA, IgM) | Antibodies directed against a specific pathogen |
| Origin | Prepared from donor blood | From the plasma of donors with a high antibody titer |
| Indication | Severe bacterial infections (including sepsis) | Specific therapy and prevention of specific infections |
In which purulent-inflammatory diseases is the use of anti-staphylococcal immunoglobulin indicated?
Anti-staphylococcal immunoglobulin is used for the treatment and prevention of staphylococcal infections, including in:
- sepsis;
- peritonitis;
- pleurisy;
- osteomyelitis.
To remember the composition of complex normal immunoglobulin, use the abbreviation "GIM" (IgG, IgA, IgM).
Class and exam questions
What are immunological medicinal products made from?
They are prepared from donor blood as well as its components: serum, plasma, or whole blood.
What is the composition of normal human immunoglobulin?
This is a complex agent containing antibodies of three classes: IgG, IgA, and IgM.
Where does the plasma for specific immunoglobulins come from?
It is obtained from donors with a high titer of specific antibodies who have either recovered from the disease or undergone targeted immunization.
What are the routes of administration for these products?
Agents available in ampoules are administered intramuscularly or, when clinically indicated, intravenously.
What else to study on this topic
- Mechanisms of passive immunity formation
- Differences between blood serum and plasma in agent production
- Indications for intravenous administration of immunoglobulins
- Role of IgG, IgA, and IgM immunoglobulins in the body
- Tetanus prophylaxis in surgical practice
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