Related Experiment Video
Updated: Jun 1, 2026

Rearing the Cabbage White Butterfly (Pieris rapae) in Controlled Conditions: A Case Study with Heavy Metal Tolerance
Published on: August 18, 2023
[Abnormal increase in CD8(low) T lymphocyte in patients with occupational chronic lead poisoning]
Wei Yu1, Ying Luo, Jia-yu Chen
1Department of Internal Medicine, Guangzhou Municipal Twelfth People's Hospital, Guangzhou 510620, China.
Objective:
To analyze the changes in CD8(low) T lymphocyte subsets in patients with occupational chronic lead poisoning.
Methods:
Flow cytometric analysis was used to count the numbers of CD8+ cells. 23 patients with occupational chronic lead poisoning and 20 controls were examined.
Results:
Compared with control group (8.21% ± 3.02%), the CD8(low) T lymphocyte (12.98% ± 5.62%) were significantly increased in patients with occupational chronic lead poisoning.
Conclusion:
Although the ratio of CD+ T lymphocyte is normal, the CD8 level is significantly decreased. The increase of CD8(low) T lymphocyte may be an important phenomenon of immuno-injury induced by lead. CD8(low) T lymphocyte could be an new direction for research of lead immuno-toxicity.
Related Concept Videos
Pulmonary Tuberculosis I
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
Types of Toxins
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
Disorders of Leukocytes
Leukopenia may result from bone marrow disorders, autoimmune diseases, and infectious diseases. For example, conditions such as multiple myeloma and aplastic anemia can impair the bone marrow's ability to produce adequate leukocytes. Similarly, autoimmune diseases like lupus and viral infections such as HIV can prompt the immune system...
