Apart from the famously known Koebner's phenomenon in vitiligo patients (development of isomorphic lesions at traumatized uninvolved skin of patients with cutaneous diseases), [2] it is widely known that there is wound-associated pigmentation in normal individuals. The latter could be explained by two major processes; the first is incontinentia pigmenti, which occurs after destroying the basal ...

ABSTRACT Background: Melasma, a common dermatological problem which has no standard recommended therapy. This study aimed to compare the clinical efficacy of combined trichloroacetic acid peel and ascorbic with alone in epidermal melasma. Methods: A quasi-experimental was conducted on 148 patients melasma, dermatology department Pak Emirates Military Hospital, Rawalpindi from August 2019 Januar...

Whiteside, Roberta E. (Boston University School of Medicine, Boston, Mass.), and Edgar E. Baker. Interaction of Vi antigen with proteins. J. Bacteriol. 92:1597-1603. 1966.-Purified Vi antigen (Vi) mixed in equal amounts with bovine serum albumin (BSA) or human gamma globulin (HGG) at pH values above 4.7 formed a complex which was not precipitated by trichloroacetic acid or tungstic acid. At pH ...

Concentrations of total tryptophan were determined rapidly and sensitively in 50 microliter of serum by a reversed-phase partition version of high-performance liquid chromatography. For determination of total tryptophan, sample preparation requires only precipitation of the serum protein with trichloroacetic acid and removing excess trichloroacetic acid with a 1,1,2-trichlorotrifluoroethane(Fre...