A novel explanation for the healing effect of the Er:YAG laser during skin rejuvenation.

In the present short communication, we would like to suggest a possible mechanism for the healing effects exerted by the erbium:yttrium-aluminum-garnet (Er:YAG) laser with a wavelength of 2940 nm (which surprisingly is the exact vibrational OH stretch frequency of water).

Science at the interstices: an evolution in the academy.

Biomedical science is at an evolutionary turning point. Many of the rate-limiting steps to realizing the next generation of personalized, highly targeted diagnostics and therapeutics rest at the interstices between biomedical science and the classic, university-based disciplines, such as physics, mathematics, computational science, engineering, social sciences, business, and law. Institutes, centers, or other entities created to foster interdisciplinary science are rapidly forming to tackle these formidable challenges, but they are plagued with substantive barriers, born of traditions, processes, and culture, which impede scientific progress and endanger success.

Endoscopic treatment of salivary gland injuries due to facial rejuvenation procedures.

Objective: The purpose of this article is to describe innovative surgical techniques for treatment of salivary gland injuries caused by facial rejuvenation procedures.

Methods: Between 2001 and 2007, a total of 14 patients, all females ages 46 to 70 who suffered from salivary gland injuries caused by facial rejuvenation procedures, were treated, primarily by an endoscopic-guided technique that involved location of the injury and endoscopic repair.

Results: There were four types of postsurgical injuries of the salivary glands that were caused by operations for facial rejuvenation: 1) compression of salivary ducts with temporary swelling (n = 1); 2) laceration of the capsule of the salivary gland (n = 3); 3) stretching and compression of the ducts with penetration of the capsule of the duct leading to sialocele and long-term swelling (types 1 and 2 combined) (n = 5); and 4) complete cut or penetration of the main salivary duct or of one of its main branches resulting in sialocele (n = 5).

Intra-arterial infusion of nitric oxide (NO) - first animal trial.

Objective: Nitric oxide (NO) is an important signaling molecule that acts in many tissues to regulate a diverse range of physiological processes. NO has been implicated in a number of cardiovascular diseases. Reduced basal NO synthesis or function may lead to: vasoconstriction, elevated blood pressure and thrombus formation.