ABSTRACT
Linear lichen planus pigmentosus is a rare subtype of lichen planus pigmentosus that follows Blaschko’s lines, leaving long-standing residual atrophy and pigmentation, especially in dark-skinned populations. Conventional treatments have several limitations regarding the alleviation of pigmentation and atrophy. We report two cases of Korean women with linear lichen planus pigmentosus on their faces who were successfully treated with fractional lasers and intralesional injection of polydeoxyribonucleotide.
ABSTRACT
Background@#Riehl’s melanosis of the face and neck has been reported in middle-aged women who have darker skin types. Recently, cases of Riehl’s melanosis have been on the rise in Korea, which might reflect the increased use of various cosmetic products and procedures. @*Objective@#This study was designed to analyze the clinicopathological characteristics and treatment outcomes of Riehl’s melanosis in Korean patients. @*Methods@#We closely observed 80 patients with Riehl’s melanosis diagnosed in Asan Medical Center and Hanyang University Medical Center between 2005 and 2015. A skin biopsy was analyzed in 51 patients, and a patch test was carried out in 16 patients. @*Results@#Patients with chronic Riehl’s melanosis (＞12 months) had an increased frequency of previous laser treatments. Patients with acute Riehl’s melanosis (＜3 months) reported a previous history of dry skin, itching, or irritation as a result of the use of hair dye. Patients older than 50 years, with darker skin type, and with a longer disease duration (＞12 months) had poor response rates. Chronic Riehl’s melanosis may be preceded by repeated irritation of barrier-compromised skin, and acute Riehl’s melanosis seems to be an allergic form of Riehl’s melanosis. @*Conclusion@#Riehl’s melanosis has different clinical manifestations according to disease duration and different treatment responses based on disease duration.
ABSTRACT
Recently, the ovary is known to be a center of paracrine and autocrine rehulating factors. IGF-I is a local regulator of follicular function and a poten stimulator of ovarian cell proliferation and differentiation, in synergy will the gonadotrophins, whilst GH may exert its effect by changing intra-ovarian IGF-I concentration. Inbiological fluids, IGFs are bound to specific, high affinity binding proteins(IGFBP). The IGFBPs are considered paracrine modulators of the action of IGF-I in the ovary. The aim of the study is to elucidate relationships amongst IGF-I, IGFBP-3, GH and estadiol in mature follicular fluids or serum. Thirty-six infertility patients who underwent ovulation induction program by GnRH agonist short or long protocol for in vitro fertilization (IVF) were examined to investigate the correlations amongst the concentration of IGF-I, IGFBP-3, GH and estradiol in follicular fluid or serum. These hormones were quantitatively anayzed by radioimmunoassay(RIA) or Immunoradiometric assay(IRMA). There were statistically significant correlations between the concentration of IGF-I and GH, IGFBP-3 in follicular fluid. Therefore, GH tends to increase IGF-I levels in follicular fluid and IGF-I may functions as an important regulator of IGFBP-3 synthesis in follicular fluid, but IGFBP-3 is not likely to be under the direct control of GH in follicular fluid.