Hormone useful in suppressing allergies, rheumatoid arthritis and tissue inflammation is

Options

A. Mineralocorticoid
B. Glucocorticoid
C. Thyroxine
D. Adrenaline.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for a hormone that is effective in suppressing allergies, rheumatoid arthritis, and tissue inflammation.

2. **Analyzing the Options**: The options provided are:
- Mineralocorticoid
- Glucocorticoid
- Thyroxine
- Adrenaline

3. **Evaluating Each Option**:
- **Mineralocorticoid**: This hormone is secreted from the adrenal cortex and primarily helps in maintaining electrolyte balance in the body. It reduces sodium loss through urine and sweat but is not primarily known for suppressing inflammation.

- **Glucocorticoid**: This hormone is also secreted from the adrenal cortex. It regulates carbohydrate metabolism and is crucial in the suppression of inflammation. Glucocorticoids are known to suppress the immune response, which makes them effective in treating chronic inflammatory diseases such as allergies and rheumatoid arthritis.

- **Thyroxine**: This hormone is secreted by the thyroid gland and is responsible for increasing oxygen consumption in metabolically active tissues. It does not play a role in suppressing inflammation.

- **Adrenaline**: Known as the emergency hormone, adrenaline is secreted from the adrenal medulla during stress. While it helps in coping with stress, it does not specifically suppress inflammation or allergies.

4. **Conclusion**: After evaluating all the options, glucocorticoid is the hormone that is effective in suppressing allergies, rheumatoid arthritis, and tissue inflammation. Therefore, the correct answer is glucocorticoid.

**Final Answer**: Glucocorticoid

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