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https://www.readbyqxmd.com/read/29051777/melanoma-in-pregnancy
#1
REVIEW
Rebecca Still, Shaun Brennecke
Melanoma is one of the most common cancers diagnosed in pregnancy and has a high metastatic potential. As the incidence of melanoma increases, careful clinical evaluation of suspicious skin lesions remains the mainstay of early diagnosis. There is controversy in the literature as to whether pregnancy-associated melanoma has worse survival than other melanomas. Any changing-pigmented lesion should be biopsied, regardless of pregnancy hyperpigmentation. Increased lymphangiogenesis in pregnancy is associated with increased metastasis - timely diagnosis is therefore imperative...
September 2017: Obstetric Medicine
https://www.readbyqxmd.com/read/29045012/photodynamic-therapy-inhibits-melanogenesis-through-paracrine-effects-by-keratinocytes-and-fibroblasts
#2
Sue Kyung Kim, Seung-Jae Oh, Se-Yeon Park, Woo-Jung Kim, You-Sun Kim, You Chan Kim
Photodynamic therapy (PDT) is a treatment option for skin cancer and premalignant skin diseases and exhibits rejuvenation effects, including reducing fine wrinkles and whitening, on aged skin. In the present study, we investigated the mechanism underlying the whitening effects of PDT on melanocytes in vitro and in vivo. Exposure of melanocytes to PDT in vitro reduced their melanin content and tyrosinase activity without, however, affecting cell survival. Interestingly, melanogenesis was also inhibited by exposing melanocytes to conditioned media of PDT-treated keratinocytes or dermal fibroblasts...
October 17, 2017: Pigment Cell & Melanoma Research
https://www.readbyqxmd.com/read/29031417/-skin-pigmentation-induced-by-meropenem-and-levofloxacin
#3
E Garval, V Vuiblet, A Durlach, G Perceau, D Anuset, P Bernard
BACKGROUND: Various cutaneous side-effects, including, exanthema, pruritus, urticaria and Lyell or Stevens-Johnson syndrome, have been reported with meropenem (carbapenem), a rarely-prescribed antibiotic. Levofloxacin (fluoroquinolone), a more frequently prescribed antibiotic, has similar cutaneous side-effects, as well as photosensitivity. We report a case of cutaneous hyperpigmentation induced by meropenem and levofloxacin. PATIENTS AND METHODS: A 67-year-old male was treated with meropenem (1g×4 daily), levofloxacin (500mg twice daily) and amikacin (500mg daily) for 2 weeks, followed by meropenem, levofloxacin and rifampicin (600mg twice daily) for 4 weeks for osteitis of the fifth metatarsal...
October 11, 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/28993016/-cosmetics-and-topical-medications-in-acne-where-is-the-boundary
#4
F Poli, J-P Claudel, N Auffret, M-T Leccia, B Dréno
Acne is a chronic disease that may cause sequels such as atrophic or hypertrophic scars or post-inflammatory hyperpigmentation. Topical and systemic medications with proven pharmacologic activity and which have received marketing authorization are the key actors in the treatment of acne. However, these topical or systemic treatments frequently cause adverse effects related to impairment of the skin barrier, and cosmetics must therefore be used in combination to help protect the skin barrier. Nowadays, new cosmetic products containing active ingredients tested in vitro or in a small number of subjects have changed the world of cosmetics...
October 6, 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/28979660/treatment-of-freckles-using-a-fractional-nonablative-2940nm-erb-yag-laser-in-a-series-of-asian-patients
#5
Brian Tian
OBJECTIVE: The purpose of this study was to demonstrate a novel, effective, and safe way to utilize the Erb:YAG laser to clear freckles in Type III/IV Asian skin. DESIGN: This was a prospective study. SETTING: The setting was a Singapore-based clinic. PARTICIPANTS: Participants included five women, aged 25 to 38 years, three with Skin Type III and two with Skin Type IV. All of them had freckles. MEASUREMENTS: Photographs were taken pretreatment and one month after laser treatment. Three independent physicians evaluated the photographs using a grading system...
August 2017: Journal of Clinical and Aesthetic Dermatology
https://www.readbyqxmd.com/read/28971471/dermatoscopic-evaluation-and-histopathological-correlation-of-acquired-dermal-macular-hyperpigmentation
#6
Keshavamurthy Vinay, Anuradha Bishnoi, Davinder Parsad, Uma N Saikia, Muthu Sendhil Kumaran
BACKGROUND: Acquired dermal macular hyperpigmentation (ADMH) is a hypernym encompassing Riehl's melanosis, lichen planus pigmentosus, and ashy dermatoses that show significant clinicopathological overlap. We sought to describe the dermatoscopic features of ADMH and correlate them with histopathological findings. METHODS: This was a prospective observational study performed in two phases. A detailed clinical and dermatoscopic examination was performed, and skin biopsies were obtained in 51 patients...
October 3, 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/28954099/psychosocial-impact-of-acne-and-postinflammatory-hyperpigmentation
#7
Katlein França, Jonette Keri
Background: Acne is one of the most common skin diseases. It has significant effect on self-image and negative impact on quality of life. Postinflammatory hyperpigmentation is an acquired hypermelanosis that occurs after a skin injury or cutaneous inflammation. It is common sequelae in acne patients. Objectives: This study aimed to investigate the psychosocial impact of acne and postinflammatory hyperpigmentation among patients treated in a dermatology outpatient clinic at the University of Miami Hospital...
July 2017: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/28941489/from-bench-to-bedside-the-hampton-university-skin-of-color-research-institute-2015-skin-of-color-symposium
#8
EDITORIAL
Clinton W Enos, Valerie M Harvey
The Hampton University Skin of Color Research Institute Skin of Color Symposium 2015: From Bench to Bedside was held in Williamsburg, Virginia at the Williamsburg Lodge, November 13-15, 2015. The conference was designed to promote, develop, and advance the education, knowledge, and research of cutaneous disorders disproportionately affecting people of racial and ethnic minority groups. Centered on the theme of "From Bench to Bedside", the symposium provided a program featuring a diverse panel of nationally recognized physician-scientists, basic scientists, and clinicians who updated attendees on the latest research advances across multiple relevant disciplines, including public health, basic science, and the clinical diagnosis and management of select complex and rare dermatologic conditions...
October 2017: Journal of Investigative Dermatology. Symposium Proceedings
https://www.readbyqxmd.com/read/28926831/multiparameter-investigation-of-a-46-xx-46-xy-tetragametic-chimeric-phenotypical-male-patient-with-bilateral-scrotal-ovotestes-and-ovulatory-activity
#9
Yolande van Bever, Katja P Wolffenbuttel, Hennie T Brüggenwirth, Eric Blom, Annelies de Klein, Bert H J Eussen, Florijn van der Windt, Sabine E Hannema, Arianne B Dessens, Lambert C J Dorssers, Katharina Biermann, Remko Hersmus, Yolanda B de Rijke, Leendert H J Looijenga
We report on an adult male initially presenting with gynecomastia and a painless scrotal mass without additional genital anomalies. Hyperpigmentation of the skin following the Blaschko's lines was identified. He underwent gonadectomy because of suspected cancer. Histological analyses revealed an ovotestis with ovulatory activity confirmed by immunohistochemistry with multiple markers. Karyotyping of cultured peripheral blood lymphocytes and a buccal smear revealed a 46,XX/46,XY chimeric constitution with different percentages...
September 20, 2017: Sexual Development: Genetics, Molecular Biology, Evolution, Endocrinology, Embryology, and Pathology of Sex Determination and Differentiation
https://www.readbyqxmd.com/read/28924971/pitted-keratolysis-a-study-of-various-clinical-manifestations
#10
Meena Makhecha, Shreya Dass, Tishya Singh, Riddhi Gandhi, Tulika Yadav, Dipali Rathod
BACKGROUND: Pitted keratolysis (PK) is a common bacterial infection of skin characterized by noninflammatory superficial pits. Very few studies have focused on variations in clinical manifestations of PK. We conducted this study so that diagnosis of this treatable condition is not missed when it presents in an uncommonly perceived way. AIMS AND OBJECTIVES: Assessment of PK patients for various sites and morphologies. MATERIALS AND METHODS: A total of 30 patients with PK were assessed for various sites and morphologies...
November 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/28920474/the-state-of-ethnic-dermatology-in-canada
#11
Boluwaji Ogunyemi, Yvette Miller-Monthrope
Approximately 30% of Canadians will be members of a visible minority by 2031. When dermatology became an independent medical discipline in the late 18th and early 19th centuries, most residents of Canada and the United States were of Northern European descent. Morphology and descriptions of dermatoses are based on patients with light skin. Skin of colour dermatology refers to a unique field in dermatology dedicated to the diagnosis and management of disorders that are more prevalent in patients with moderately to richly pigmented skin...
September 2017: Journal of Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/28918611/anti-melanogenic-activity-and-cytotoxicity-of-pistacia-vera-hull-on-human-melanoma-skmel-3-cells
#12
Parisa Sarkhail, Mona Salimi, Pantea Sarkheil, Hirsa Mostafapour Kandelous
Pistacia vera seed is a common food and medicinal seed in Iran. It's hull (outer skin) as a significant byproduct of pistachio, is traditionally used as tonic, sedative and antidiarrheal and has been shown to be a rich source of antioxidants. The aim of the present study is to evaluate the anti-melanogenic activity of the pistachio hulls in order to discover a new alternative herbal agent to treat skin hyperpigmentation disorders. In this work, antioxidant and anti-tyrosinase activity of MeOH extract from Pistacia vera hull (MPH) were evaluated in vitro, respectively, by DPPH radical scavenging and mushroom tyrosinase activity assays...
July 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/28917465/the-impact-of-skin-hyperpigmentation-and-hyperchromia-on-quality-of-life-a-cross-sectional-study
#13
LETTER
Mayra B C Maymone, Hind H Neamah, Stephen A Wirya, Nicole M Patzelt, Eric A Secemsky, Pedro Q Zancanaro, Neelam A Vashi
No abstract text is available yet for this article.
October 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28917451/postinflammatory-hyperpigmentation-a-comprehensive-overview-epidemiology-pathogenesis-clinical-presentation-and-noninvasive-assessment-technique
#14
REVIEW
Narumol Silpa-Archa, Indermeet Kohli, Suteeraporn Chaowattanapanit, Henry W Lim, Iltefat Hamzavi
Postinflammatory hyperpigmentation (PIH) commonly occurs after various endogenous and exogenous stimuli, especially in dark-skinned individuals. PIH is one of the most common complications of procedures performed using laser and other light sources. The severity of PIH is determined by the inherent skin color, degree and depth of inflammation, degree of dermoepidermal junction disruption, inflammatory conditions, and the stability of melanocytes, leading to epidermal and dermal melanin pigment deposition...
October 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28916377/clinical-and-molecular-characterization-of-two-chinese-patients-with-type-2-congenital-generalized-lipodystrophy
#15
Ruimin Chen, Xin Yuan, Jian Wang, Ying Zhang
BACKGROUND: Type 2 congenital generalized lipodystrophy (CGL2, OMIM 269700) is a rare autosomal recessive disease, characterized by the generalized absence of adipose tissue at birth or in early infancy. Pathogenic variants in BSCL2 gene have been reported to be responsible for CGL2. The aim of this study is to analyze the clinical and genetic characteristics of two Chinese patients with CGL2, and with particular focus on the BSCL2 gene sequence variants. METHODS: Medical history, clinical manifestations, physical examination, laboratory data, and ultrasonography findings were analyzed for the two patients with CGL2...
December 30, 2017: Gene
https://www.readbyqxmd.com/read/28901051/noninvasive-submental-fat-reduction-using-colder-cryolipolysis
#16
Hector Leal Silva, Esther Carmona Hernandez, Mariana Grijalva Vazquez, Sebastian Leal Delgado, Angel Perez Blanco
BACKGROUND: Cryolipolysis has shown to significantly reduce localized subcutaneous fat, including submental fat. Temperatures below -11°C have not been used to treat the submental region. OBJECTIVE: The purpose of this study was to evaluate safety and efficacy of Cryolipolysis for noninvasive reduction of submental fat using lower temperatures and reduced treatment time. METHODS: A small volume applicator was used to treat 15 subjects, using a noninvasive tissue cooling device (CoolSculpting System, ZELTIQ Aesthetics, Pleasanton, CA, USA) during 45 and 30 minutes at -12 and -15°C, respectively, to induce reduction of submental fat...
September 12, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/28884598/skin-targeting-of-curcumin-solid-lipid-nanoparticles-engrossed-topical-gel-for-the-treatment-of-pigmentation-and-irritant-contact-dermatitis
#17
Shilpa Shrotriya, Nisharani Ranpise, Pournima Satpute, Bhagvat Vidhate
Irritant contact dermatitis (ICD) and hyperpigmentation are the problems associated with skin. Topical curcumin (CUR) although effective in hyperpigmentation and ICD, is a challenging molecule due to low-solubility. Encapsulation of CUR into solid lipid nanoparticles (SLNs) makes it amenable to topical dosing as their small size promotes its penetration into the skin. CUR-SLNs were prepared using Precirol ATO5 and Tween-80 by probe ultrasonication method. Further, CUR-SLNs were incorporated into Carbopol gel and investigated for ex-vivo skin permeation, skin deposition and skin irritation studies...
September 8, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28878021/ck1%C3%AE-ablation-in-keratinocytes-induces-p53-dependent-sunburn-protective-skin-hyperpigmentation
#18
Chung-Hsing Chang, Che-Jung Kuo, Takamichi Ito, Yu-Ya Su, Si-Tse Jiang, Min-Hsi Chiu, Yi-Hsiung Lin, Andrea Nist, Marco Mernberger, Thorsten Stiewe, Shosuke Ito, Kazumasa Wakamatsu, Yi-An Hsueh, Sheau-Yann Shieh, Irit Snir-Alkalay, Yinon Ben-Neriah
Casein kinase 1α (CK1α), a component of the β-catenin destruction complex, is a critical regulator of Wnt signaling; its ablation induces both Wnt and p53 activation. To characterize the role of CK1α (encoded by Csnk1a1) in skin physiology, we crossed mice harboring floxed Csnk1a1 with mice expressing K14-Cre-ER(T2) to generate mice in which tamoxifen induces the deletion of Csnk1a1 exclusively in keratinocytes [single-knockout (SKO) mice]. As expected, CK1α loss was accompanied by β-catenin and p53 stabilization, with the preferential induction of p53 target genes, but phenotypically most striking was hyperpigmentation of the skin, importantly without tumorigenesis, for at least 9 mo after Csnk1a1 ablation...
September 19, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28877312/effect-of-topical-fluorouracil-cream-on-photodamage-secondary-analysis-of-a-randomized-clinical-trial
#19
Kaveri Korgavkar, Kachiu C Lee, Martin A Weinstock
Importance: Photoaging, which is premature skin aging caused by long-term UV exposure, is of aesthetic concern to many patients. Objective: To investigate the effect of topical fluorouracil, 5%, cream on photoaging using validated photonumeric scales. Design, Setting, and Participants: The Veterans Affairs Keratinocyte Carcinoma Chemoprevention Trial was a randomized clinical trial of 932 US veterans with a recent history of 2 or more keratinocyte carcinomas performed from September 30, 2011, through June 30, 2014, to assess the chemopreventive effects of a standard course of topical fluorouracil...
September 6, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28872626/anti-melanogenic-effects-of-flavonoid-glycosides-from-limonium-tetragonum-thunb-bullock-via-inhibition-of-tyrosinase-and-tyrosinase-related-proteins
#20
Seul-Gi Lee, Fatih Karadeniz, Youngwan Seo, Chang-Suk Kong
Overproduction and stimulation of tyrosinase result in increased melanogenesis of which several skin disorders such as freckles, spots, and hyperpigmentation appear as complications. Limonium tetragonum is a halophyte well-known for its antioxidative properties. This study investigated the anti-melanogenic effects of solvent-partitioned L. tetragonum extracts (LTEs) and its bioactive constituents, two isolated flavonoid glycosides. Current study followed a set of experiments on B16-F10 mouse melanoma cell model with a focus on tyrosinase activity and production...
September 5, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
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