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ChatGPT
10 hours ago
Acute inflammation is the body's immediate response to tissue injury or infection. It is a rapid and short-lived process that is characterized by redness, swelling, heat, pain, and loss of function in the affected area.
During acute inflammation, the body releases chemicals such as histamine, prostaglandins, and cytokines that cause blood vessels to dilate and become more permeable. This allows white blood cells and other immune cells to quickly move to the site of injury or infection to help fight off any harmful invaders and begin the healing process.
Acute inflammation is a necessary and beneficial response that helps the body to protect and repair itself. However, if the inflammation is not properly controlled or resolves too slowly, it can lead to chronic inflammation, which can contribute to various diseases and conditions.
During acute inflammation, the body releases chemicals such as histamine, prostaglandins, and cytokines that cause blood vessels to dilate and become more permeable. This allows white blood cells and other immune cells to quickly move to the site of injury or infection to help fight off any harmful invaders and begin the healing process.
Acute inflammation is a necessary and beneficial response that helps the body to protect and repair itself. However, if the inflammation is not properly controlled or resolves too slowly, it can lead to chronic inflammation, which can contribute to various diseases and conditions.
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Google Gemini AI
10 hours ago
Acute Inflammation
Inflammation is the body's natural response to injury or infection. It involves the recruitment of immune cells to the site of damage to promote healing and protect the body. Acute inflammation is a short-lived response that lasts for a few days to a few weeks.
Steps of Acute Inflammation:
1. Vasodilation and Increased Vascular Permeability:
- Histamine and other mediators cause blood vessels to dilate, increasing blood flow to the affected area.
- Intercellular junctions loosen, allowing fluid and proteins to leak out of the vessels, causing edema (swelling).
2. Neutrophil Infiltration:
- Neutrophils, a type of white blood cell, are the first responders to the inflammatory site.
- They migrate into the affected tissue through the gaps between endothelial cells.
3. Phagocytosis and Tissue Repair:
- Neutrophils engulf and destroy foreign particles, bacteria, and damaged tissue.
- Macrophages, another type of phagocytic cell, replace neutrophils as the inflammation resolves.
- New blood vessels form to provide oxygen and nutrients for repair.
4. Resolution:
- When the threat is removed, pro-inflammatory mediators decrease, and anti-inflammatory mediators increase.
- Neutrophils undergo apoptosis (programmed cell death) and are removed.
- Tissue repair is completed.
Signs and Symptoms of Acute Inflammation:
- Redness (rubor)
- Swelling (tumor)
- Heat (calor)
- Pain (dolor)
- Loss of function (functio laesa)
Causes of Acute Inflammation:
- Trauma (e.g., burns, wounds)
- Infection (e.g., bacterial, viral)
- Immune reactions (e.g., allergies)
- Chemical agents (e.g., acids, toxins)
Treatment of Acute Inflammation:
- Non-steroidal anti-inflammatory drugs (NSAIDs)
- Corticosteroids
- Antibiotics (if infection is present)
- Rest, elevation, compression (for swelling)
Inflammation is the body's natural response to injury or infection. It involves the recruitment of immune cells to the site of damage to promote healing and protect the body. Acute inflammation is a short-lived response that lasts for a few days to a few weeks.
Steps of Acute Inflammation:
1. Vasodilation and Increased Vascular Permeability:
- Histamine and other mediators cause blood vessels to dilate, increasing blood flow to the affected area.
- Intercellular junctions loosen, allowing fluid and proteins to leak out of the vessels, causing edema (swelling).
2. Neutrophil Infiltration:
- Neutrophils, a type of white blood cell, are the first responders to the inflammatory site.
- They migrate into the affected tissue through the gaps between endothelial cells.
3. Phagocytosis and Tissue Repair:
- Neutrophils engulf and destroy foreign particles, bacteria, and damaged tissue.
- Macrophages, another type of phagocytic cell, replace neutrophils as the inflammation resolves.
- New blood vessels form to provide oxygen and nutrients for repair.
4. Resolution:
- When the threat is removed, pro-inflammatory mediators decrease, and anti-inflammatory mediators increase.
- Neutrophils undergo apoptosis (programmed cell death) and are removed.
- Tissue repair is completed.
Signs and Symptoms of Acute Inflammation:
- Redness (rubor)
- Swelling (tumor)
- Heat (calor)
- Pain (dolor)
- Loss of function (functio laesa)
Causes of Acute Inflammation:
- Trauma (e.g., burns, wounds)
- Infection (e.g., bacterial, viral)
- Immune reactions (e.g., allergies)
- Chemical agents (e.g., acids, toxins)
Treatment of Acute Inflammation:
- Non-steroidal anti-inflammatory drugs (NSAIDs)
- Corticosteroids
- Antibiotics (if infection is present)
- Rest, elevation, compression (for swelling)
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