[Exploration of the early detection of lung parenchyma micronodules, nodule coalescence and emphysema by CT and HRCT in coal miners with and without coal-worker's pneumoconiosis evidence].

Objective: To explore the sensitivity and accuracy of CT and HRCT in early detection of coal-worker's pneumoconiosis (CWP) associated micronodules, nodule coalescence and emphysema from coal miners with and without radiographic CWP evidence.

Method: Continuously Thorax-Vol. CT scanning and High resolution CT scanning were performed on 113 coal miners with or without radiographic CWP evidence and 37 health controls by the use of Multi Spiral Computed Tomography (MSCT).

[Relationship between dust exposure and chronic obstructive pulmonary diseases and heat shock protein 72 and 73 in lymphocytes among coal miners].

Objective: To assess the expression of Hsp72 and Hsp73 in chronic obstructive pulmonary disease (COPD) and to evaluate their roles in damage from coal dust exposure.

Methods: A case control study of 50 coal miners suffering from COPD and 50 healthy coal miners were selected from one coal mine. The levels of Hsp72 and Hsp73 in peripheral blood lymphocytes were determined by flow cytometry for all subjects.