STANFORD, California, July 4 -- Stanford University School of Medicine issued the following news: * * * Damage from smoke and respiratory viruses mitigated in mice via a common signaling pathway The hedgehog signaling pathway helps regenerate damaged tissue in the airways and pancreas. Activating it may protect tissue against smoke inhalation and prevent diabetes progression. By Krista Conger A rare cell in the lining of lungs is fundamental to the organwide response necessary to repair dam  more