Long-term smoking can result in reduction of bone density [67], degeneration of bone microstructure, and increased bone fragility [66]
These results suggest that smoking may worsen the severity of the disease and prolong the disease course and drug treatment with immunosuppressants
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Similar content being viewed by others Key points COPD is one of the most common smoke-related causes of death, depicted by the spirometric evidence of irreversible and usually progressive airflow limitation
However, in human sperm, around 15% of the DNA is still bound by histones in locations unique to certain sequences, suggesting a particular program of gene expression following fertilization [53, 54]