Thymic atrophy in mice induced by cadmium administration

Area of Science:

• Toxicology
• Immunology
• Histopathology

Background:

• Cadmium (Cd) is a toxic heavy metal with known adverse health effects.
• Understanding cadmium's impact on immune organs is crucial for public health.
• Histopathological examination provides detailed insights into tissue-level changes.

Purpose of the Study:

• To investigate the histopathological effects of cadmium exposure on immune organs in mice.
• To assess changes in body weight and organ weights following cadmium administration.

Main Methods:

• Mice were administered a single intraperitoneal injection of 1.8 mg Cd/kg body weight.
• Body weight and weights of thymus, spleen, and lymph nodes were measured 2-3 days post-injection.
• Immune organs were examined using histopathology to identify cellular and structural changes.

Main Results:

• A slight decrease in body weight was observed.
• Significant thymus weight reduction and marked spleen weight increase occurred.
• Histopathology showed severe cortical atrophy of the thymus and diminished white pulp in the spleen, with myeloid cell infiltration in the red pulp.

Conclusions:

• Cadmium exposure significantly impacts thymus and spleen morphology.
• Histopathological findings indicate substantial damage to immune organs following cadmium intoxication.
• Further research is warranted to explore the long-term immunological consequences of cadmium exposure.