Serum calcium levels in various lung diseases

Area of Science:

• Pulmonary Medicine
• Oncology
• Clinical Biochemistry

Background:

• Elevated serum calcium (hypercalcemia) can be associated with various diseases.
• The role of serum calcium levels in different lung pathologies requires further investigation.

Purpose of the Study:

• To investigate serum calcium levels in patients with diverse lung diseases.
• To compare these levels with healthy controls and assess changes post-treatment.

Main Methods:

• Serum calcium levels were measured in patients diagnosed with lung tuberculosis, primary lung carcinoma, metastatic lung carcinoma, and other pulmonary diseases.
• Healthy volunteers served as the control group.
• Statistical analysis was performed to identify significant differences (P < 0.01).

Main Results:

• Significantly higher serum calcium levels were observed in patients with active lung tuberculosis compared to controls (P < 0.01).
• Patients with primary and metastatic lung carcinoma also exhibited significantly elevated serum calcium levels versus controls (P < 0.01).
• Serum calcium levels normalized in tuberculosis patients after treatment, and remained normal in patients with other pulmonary diseases, irrespective of infection status.

Conclusions:

• Hypercalcemia is significantly associated with active lung tuberculosis, primary lung carcinoma, and metastatic lung carcinoma.
• The findings suggest that specific pathophysiological mechanisms contribute to hypercalcemia in these conditions.
• Serum calcium levels may serve as a potential biomarker for certain lung diseases.