Pneumothorax secondary to vaping.

Pneumothorax is the presence of air in the pleural space that can result in the partial or complete collapse of a lung. Cigarette and cannabis smoking are also well-known risk factors. Vaping, on the other hand, is not as well-established as little is known about the impact electronic cigarettes have on the development of pneumothoraces despite their use rapidly increasing over the past decade.

Ultrastructural organization of ex vivo amyloid fibrils formed by the apolipoprotein A-I Leu174Ser variant: an atomic force microscopy study.

Atomic force microscopy was employed to study ex vivo amyloid material isolated from the transplanted hearts of two patients affected by systemic amyloidosis caused by the Leu174Ser apolipoprotein A-I variant. The purified material consists of fibrils and globular aggregates. For both patients the same morphological patterns are observed; in addition, fibril diameters obtained for the two patients turn out to be compatible, both in air (2.