Advancement of All-Trans Retinoic Acid Delivery Systems in Dermatological Application

All-trans-retinoic acid: measurement

A quantitative determination of physiological levels of all-trans-retinoic acid (vitamin A acid) in human serum has been developed. A double-phase extraction of 3.5 ml of serum followed by a specific and sensitive high performance liquid chromatography procedure allowed measurement of levels down to 1 ng/ml. Serum concentrations in 37 fasting volunteers ranged from 2.7 to 4.2 ng/ml and fitted a...

Gelatin Microspheres for the Controlled Release of All-trans-Retinoic Acid Topical Formulation and Drug Delivery Evaluation

A topical o/w cream containing tretinoin microspheres was prepared. Gelatin microspheres of tretinoin were prepared using coacervation method. These microspheres contained about 50% w/w tretinoin. The particle size range of microspheres was between 90-150 m m. In vitro drug release from microspheres and a cream formulation was studied. It was shown that drug release from microspheres followed H...

Gelatin Microspheres for the Controlled Release of All-trans-Retinoic Acid Topical Formulation and Drug Delivery Evaluation

A topical o/w cream containing tretinoin microspheres was prepared. Gelatin microspheres of tretinoin were prepared using coacervation method. These microspheres contained about 50% w/w tretinoin. The particle size range of microspheres was between 90-150 m m. In vitro drug release from microspheres and a cream formulation was studied. It was shown that drug release from microspheres followed H...

development and cytoxicity evaluation of nanomicelle carriers for delivery of all-trans retinoic acid

All-trans-retinoic acid and bleeding/thrombosis.

Hematology-Oncology Department Ospedali Riuniti Largo Barozzi, 1 24128 Bergamo (Italy) Tel. 39 035 269492, Fax 39 035 266659 E-Mail [email protected] All-trans-retinoic acid (ATRA) inhibits cell growth and proliferation by inducing cyto-differentiation and/or apoptosis in several cell types. These effects have become a therapeutic objective in human cancers. In addition to these functions, ...