Psoralenit

Psoralenit is a term that appears to be a misspelling or a non-standard variation related to psoralens. Psoralens are a group of naturally occurring organic compounds known as furocoumarins. They are found in various plants, including parsley, celery, and certain citrus fruits. Psoralens have a characteristic chemical structure that makes them reactive when exposed to ultraviolet A (UVA) light.

This photochemical property is utilized in a medical treatment called PUVA therapy. PUVA is a combination of psoralen (P) and UVA (UVA) light, and it is primarily used to treat certain skin conditions. The psoralen is administered either orally or topically, and then the skin is exposed to UVA radiation. Under UVA light, psoralens intercalate into DNA and form covalent cross-links, which inhibits cell proliferation. This mechanism makes PUVA effective for conditions such as psoriasis, eczema, and vitiligo.

The use of psoralens requires caution due to potential side effects. These can include increased sensitivity to sunlight, nausea (if taken orally), and a higher risk of skin aging and skin cancer with long-term or excessive exposure. Therefore, PUVA therapy is administered under strict medical supervision. While "psoralenit" itself is not a recognized medical or chemical term, it likely refers to psoralens or their effects.