Hyperglycemia is induced by all the following hormones except

Options

A. glucagon
B. thyroxine
C. aldosterone
D. glucocorticoid

Answer

To solve the question regarding which hormone does not induce hyperglycemia, we will analyze the hormones mentioned and their effects on blood glucose levels.

### Step-by-step Solution:

1. **Understand Hyperglycemia**: Hyperglycemia refers to an increased level of glucose in the blood. This condition can be induced by certain hormones.

2. **Identify the Hormones**: The question asks about hormones that induce hyperglycemia. The hormones we need to consider are:
- Glucagon
- Insulin
- Thyroxine
- Aldosterone
- Glucocorticoids (like cortisol)

3. **Analyze Each Hormone**:
- **Glucagon**: This hormone is secreted by the alpha cells of the pancreas and is known to increase blood glucose levels. Therefore, it induces hyperglycemia.
- **Insulin**: This hormone is secreted by the beta cells of the pancreas and lowers blood glucose levels. It is a hypoglycemic hormone and does not induce hyperglycemia. Thus, this is a potential answer.
- **Thyroxine**: This hormone is produced by the thyroid gland and helps to regulate metabolism. It can increase blood glucose levels by promoting the breakdown of carbohydrates, thus inducing hyperglycemia.
- **Aldosterone**: This hormone is secreted by the adrenal cortex and primarily regulates water and salt balance in the body. It does not have a direct role in carbohydrate metabolism or in increasing blood glucose levels, making it the correct choice for our question.
- **Glucocorticoids (Cortisol)**: These hormones are involved in metabolism and can increase blood glucose levels, thus inducing hyperglycemia.

4. **Conclusion**: Based on the analysis, the hormone that does not induce hyperglycemia is **Aldosterone**.

### Final Answer:
**Aldosterone** is the hormone that does not induce hyperglycemia.