Physical sunscreens: On the comeback trail

Physical sunscreens: on the comeback trail.

Awareness of ultraviolet radiation-induced skin damage creates the need for the development of broad-spectrum, safe and cosmetically acceptable sunscreens. Being relatively inert, safe, stable and non-irritating, physical sunscreens are particularly useful for patients with sensitive skin who cannot tolerate chemical sunscreens. However, they form a thick visible pigment layer on the skin. To o...

The Comeback Kid?

Balloon angioplasty revolutionized coronary revascularization; however, elastic recoil and restenosis caused by cellular proliferation are major drawbacks of angioplasty. Intracoronary stenting, which could tackle dissections and eliminate elastic recoil, became the next mode of intervention but was limited by stent thrombosis and increased neointimal hyperplasia, leading to in-stent restenosis...

Comeback victory.

An Update on Sunscreens II

1 This educational resource summarises recent developments in sunscreen research, knowledge, and use. It starts with a review of the Nambour Skin Cancer Prevention Trial, which contributes to the evidence for a protective effect of sunscreen against melanoma. This is followed by consideration of UVA protection, correct application of sunscreen, skin type in sun protection, and compliance with s...

Whale comeback

Last month I came across a folder of papers I had written at the age of 16 for my high school English class. This occasion, in some ways like Proust’s madeleine, triggered recollections of how I, as a 16 year-old, framed the thoughts I had about what I wanted to do with my life. One of those early papers was about Frost’s poem The Road Not Taken. I remember not terribly liking the poem. But the...