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https://www.readbyqxmd.com/read/28726212/melasma-an-up-to-date-comprehensive-review
#1
REVIEW
Oluwatobi A Ogbechie-Godec, Nada Elbuluk
Melasma is a common acquired condition of symmetric hyperpigmentation, typically occurring on the face, with higher prevalence in females and darker skin types. Multiple etiologies, including light exposure, hormonal influences, and family history, have been implicated in the pathogenesis of this disorder. Overall prevalence ranges widely at 1-50%, since values are typically calculated within a specific ethnic population within a geographic region. Histologically, melasma can display increased epidermal and/or dermal pigmentation, enlarged melanocytes, increased melanosomes, solar elastosis, dermal blood vessels, and, occasionally, perivascular lymphohistiocytic infiltrates...
July 19, 2017: Dermatology and Therapy
https://www.readbyqxmd.com/read/28719808/activated-neuro-oxidative-and-neuro-nitrosative-pathways-at-the-end-of-term-are-associated-with-inflammation-and-physio-somatic-and-depression-symptoms-while-predicting-outcome-characteristics-in-mother-and-baby
#2
Chutima Roomruangwong, Decio Sabbatini Barbosa, Andressa Keiko Matsumoto, André de Souza Nogueira, Buranee Kanchanatawan, Sunee Sirivichayakul, André F Carvalho, Sebastien Duleu, Michel Geffard, Estefania Gastaldello Moreira, Michael Maes
OBJECTIVES: To examine oxidative & nitrosative stress (O&NS) biomarkers at the end of term in relation to perinatal affective symptoms, neuro-immune biomarkers and pregnancy-related outcome variables. METHODS: We measured plasma advanced oxidation protein products (AOPP), nitric oxide metabolites (NOx), total radical trapping antioxidant parameter (TRAP), -sulfhydryl (-SH), peroxides (LOOH) and paraoxonase (PON)1 activity in pregnant women with and without prenatal depression and non-pregnant controls...
July 6, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28717080/addison-s-disease-caused-by-tuberculosis-with-atypical-hyperpigmentation-and-active-pulmonary-tuberculosis
#3
Hiroki Namikawa, Yasuhiko Takemoto, Shigeto Kainuma, Sakurako Umeda, Ayako Makuuchi, Kazuo Fukumoto, Masanori Kobayashi, Shigeki Kinuhata, Yoshihiro Isaka, Hiromitsu Toyoda, Noriko Kamata, Yoshihiro Tochino, Yoshikazu Hiura, Mina Morimura, Taichi Shuto
We herein report a case of Addison's disease caused by tuberculosis characterized by atypical hyperpigmentation, noted as exacerbation of the pigmentation of freckles and the occurrence of new freckles, that was diagnosed in the presence of active pulmonary tuberculosis. The clinical condition of the patient was markedly ameliorated by the administration of hydrocortisone and anti-tuberculosis agents. When exacerbation of the pigmentation of the freckles and/or the occurrence of new freckles are noted, Addison's disease should be considered as part of the differential diagnosis...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28712336/clinical-and-histological-studies-of-suborbital-wrinkles-treated-with-fractional-bipolar-radiofrequency
#4
Jun Huang, Wenyou Yu, Zhen Zhang, Xiaodong Chen, Ewelina Biskup
Fractional bipolar radiofrequency (FRF) has been well established for facial rejuvenation, but there is no report showing its efficacy for the treatment of suborbital wrinkles. The aim of this study was to investigate and objectively evaluate the clinical efficacy and side effects of FRF for the treatment of suborbital wrinkles, including observation of histological changes of the suborbital skin along the therapy. 32 female patients with suborbital wrinkles underwent 3 sessions of FRF at 3-week intervals with a follow-up period of 6 months after treatment...
July 16, 2017: Rejuvenation Research
https://www.readbyqxmd.com/read/28710566/remarkable-effects-of-imatinib-in-a-family-with-young-onset-gastrointestinal-stromal-tumors-and-cutaneous-hyperpigmentation-associated-with-a-germline-kit-trp557arg-mutation-case-report-and-literature-overview
#5
S Farag, L E van der Kolk, H H van Boven, A C J van Akkooi, G L Beets, J W Wilmink, N Steeghs
Gastrointestinal stromal tumors (GISTs) occur mostly sporadically. GISTs associated with a familial syndrome are very rare and are mostly wild type for KIT and platelet-derived growth factor alpha (PDGFRA). To date 35 kindreds and 8 individuals have been described with GISTs associated with germline KIT mutations. This is the third family described with a germline p.Trp557Arg mutation in exon 11 of the KIT gene. The effect of imatinib in patients harboring a germline KIT mutation has been rarely described. Moreover, in some studies imatinib treatment was withheld considering the lack of evidence for efficacy of this treatment in GIST patients harboring a germline KIT mutation...
July 14, 2017: Familial Cancer
https://www.readbyqxmd.com/read/28695326/anti-melanogenic-effect-of-gomisin-n-from-schisandra-chinensis-turcz-baillon-schisandraceae-in-melanoma-cells
#6
JungNo Lee, Hwa Sun Ryu, Jae-Moon Kim, Tae-Hwa Jung, Sung-Min Park, Yong-Moon Lee
Overproduction and accumulation of melanin in the skin can lead to pigmentation disorders, such as freckles and melasma. Many researchers are studying the regulation of melanogenesis in the skin with the aim of developing whitening cosmetics. In this study, bioactivity-guided separation of the hexane fraction of Schisandra chinensis (Turcz.) Baillon extract yielded five major compounds, β-chamigrenal, α-ylangenol, gomisin N, gomisin A, and schisandrin. The structures were identified by using (1)H-NMR and (13)C-NMR spectroscopy and comparing the spectral data with published data...
July 10, 2017: Archives of Pharmacal Research
https://www.readbyqxmd.com/read/28690896/late-diagnosis-of-5-%C3%AE-reductase-type-2-deficiency-in-an-adolescent-girl-with-primary-amenorrhoea
#7
Abdul-Rahman A Hummadi, Ayel O Yahya, Awad M Al-Qahtani
Deficiency of the 5-α-reductase enzyme has been found to affect male sexual development. We report an 18-year-old patient who was referred to an endocrinology clinic in Jizan, Saudi Arabia, in April 2014 with primary amenorrhoea, virilisation and a lack of secondary sex characteristics. As female external genitalia were present at birth, she had been raised as a female. Magnetic resonance imaging revealed no uterine or ovarian tissue in the pelvis and the presence of a scrotal sac. She was diagnosed with 5-α-reductase type 2 deficiency, a 46,XY disorder of sexual development...
May 2017: Sultan Qaboos University Medical Journal
https://www.readbyqxmd.com/read/28690515/a-case-of-facial-partial-unilateral-lentiginosis-treated-with-low-fluence-1-064-nm-q-switched-neodymium-doped-yttrium-aluminum-garnet-laser
#8
En Hyung Kim
Partial unilateral lentiginosis (PUL) is an unusual pigmentary disorder characterized by numerous lentigines grouped within an area of normal skin. Although treatment is not necessary, many patients with facial PUL seek medical help for cosmetic reasons. There is no established standard treatment for PUL. Conventional lasers may cause postinflammatory hyperpigmentation because keratinocytes are injured during the process. Also, scarring, long downtime, and pain are important issues. A 19-year-old patient with facial PUL was successfully treated with low-fluence 1,064-nm Q-switched neodymium-doped yttrium aluminum garnet (QS Nd:YAG) laser...
May 2017: Case Reports in Dermatology
https://www.readbyqxmd.com/read/28689798/ethyl-acetate-extract-from-panax-ginseng-c-a-meyer-and-its-main-constituents-inhibit-%C3%AE-melanocyte-stimulating-hormone-induced-melanogenesis-by-suppressing-oxidative-stress-in-b16-mouse-melanoma-cells
#9
Rui Jiang, Xiao-Hao Xu, Ke Wang, Xin-Zhao Yang, Ying-Fei Bi, Yao Yan, Jian-Zeng Liu, Xue-Nan Chen, Zhen-Zhong Wang, Xiao-Li Guo, Da-Qing Zhao, Li-Wei Sun
ETHNOPHARMACOLOGICAL RELEVANCE: Hyperpigmentation disease involves darkening of the skin color due to melanin overproduction. Panax ginseng C.A. Meyer is a well-known traditional Chinese medicine and has a long history of use as a skin lightener to inhibit melanin formation in China, Korea and some other Asian countries. However, the constituents and the molecular mechanisms by which they affect melanogenesis are not fully clear. AIM OF THE STUDY: The purpose of this study was to identify the active ingredient in Panax ginseng C...
July 8, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28686774/prospective-study-of-pathogenesis-of-atrophic-acne-scars-and-role-of-macular-erythema
#10
Jerry Tan, Valérie Bourdès, Robert Bissonnette, Laurent Petit B Eng, Philippe Reynier, Amir Khammari, Brigitte Dreno
<p>BACKGROUND: There are few studies on the natural history of acne lesions including the antecedents of atrophic scars.</p> <p>STUDY DESIGN: Prospective study of relationship between primary (papules, pustules, comedones) and secondary lesions (atrophic scars, macular erythema, and hyperpigmentation) over 6 months. Subjects (n=32) had moderate facial acne including 10 or more atrophic acne scars and were their own control via randomized split-face design. Lesions were mapped 2x/week for 2 months and every 2 weeks thereafter until month 6 to track pathogenic progression...
June 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28684301/impact-of-highly-active-antiretroviral-therapy-on-the-prevalence-of-oral-lesions-in-hiv-positive-patients-a-systematic-review-and-meta-analysis
#11
REVIEW
V L de Almeida, I F P Lima, P K Ziegelmann, L R Paranhos, F R de Matos
The aim of this study was to determine whether highly active antiretroviral therapy (HAART) is associated with the prevalence of oral lesions in HIV-positive patients. This systematic review and meta-analysis was performed in accordance with the PRISMA guidelines (Preferred Reporting Items for Systematic Reviews and Meta-Analyses). The search was conducted in seven electronic databases (PubMed, Scopus, SciELO, LILACS, Embase, Web of Science, and OpenGrey), without restriction on publication period or language...
July 3, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28680643/a-rare-case-of-an-acth-crh-co-secreting-midgut-neuroendocrine-tumor-mimicking-cushing-s-disease
#12
Regina Streuli, Ina Krull, Michael Brändle, Walter Kolb, Günter Stalla, Marily Theodoropoulou, Annette Enzler-Tschudy, Stefan Bilz
Ectopic ACTH/CRH co-secreting tumors are a very rare cause of Cushing's syndrome and only a few cases have been reported in the literature. Differentiating between Cushing's disease and ectopic Cushing's syndrome may be particularly difficult if predominant ectopic CRH secretion leads to pituitary corticotroph hyperplasia that may mimic Cushing's disease during dynamic testing with both dexamethasone and CRH as well as bilateral inferior petrosal sinus sampling (BIPSS). We present the case of a 24-year-old man diagnosed with ACTH-dependent Cushing's syndrome caused by an ACTH/CRH co-secreting midgut NET...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28673563/the-role-of-oligomenorrhea-in-melasma
#13
Marjan Mahjour, Arash Khoushabi, Zohre Feyzabadi
Melasma is a facial hyperpigmentation in the upper lips, cheeks, forehead and chin. It is mostly seen in women. Melasma treatments include topical methods that are not only costly, but also temporary. Melasma recurs shortly after cessation of the treatment. Considering the relationship between melasma and elevated estrogen levels in patients with oligomenorrhea, systemic anti-estrogen therapies are not used for melasma. In this study, by searching in the scientific databases such as Scopus, Pubmed and the authentic books of traditional medicine such as the Canon of medicine, melasma treatment was evaluated based on oligomenorrhea systemic therapy...
July 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28670354/psychosocial-impact-of-postinflammatory-hyperpigmentation-in-patients-with-acne-vulgaris
#14
Kavita Darji, Reena Varade, Daniel West, Eric S Armbrecht, Mary A Guo
Background: Acne vulgaris is a common, often socially distressing skin condition primarily seen in young adults. Quality of life studies have shown that people with acne are more introverted with increased social setting anxiety compared to a control group. Unfortunately, patients with acne may have residual postinflammatory hyperpigmentation, amplifying impaired psychosocial effects. Objective: To quantify the impact of postinflammatory hyperpigmentation in patients with acne using a psychometric scale. Design: A clinic-based survey was conducted among US adults with facial acne and postinflammatory hyperpigmentation...
May 2017: Journal of Clinical and Aesthetic Dermatology
https://www.readbyqxmd.com/read/28664196/postinflammatory-hyperpigmentation-after-human-cold-pain-testing
#15
Melissa J Wolz, Katelyn E Sadler, Caela C Long, Daniel S Brenner, Brian S Kim, Robert W Gereau, Benedict J Kolber
Changes in cold temperature sensitivity are often associated with chronic pain conditions. Progress in understanding the neurobiological mechanism underlying these changes and resulting development of effective therapies has been slowed by the accessibility and affordability of devices used to measure thermal sensitivity in humans. To address this gap, we developed an inexpensive method to measure cold pain thresholds in healthy adult volunteers using dry ice and a thermode. However, early in preliminary testing, a subject presented with epidermal postinflammatory hyperpigmentation that lasted for >200 days...
August 2016: Pain Reports (Baltimore, Md.)
https://www.readbyqxmd.com/read/28662511/antimelanogenic-efficacy-of-melasolv-3-4-5-trimethoxycinnamate-thymol-ester-in-melanocytes-and-three-dimensional-human-skin-equivalent
#16
John Hwan Lee, Eun-Soo Lee, Il-Hong Bae, Jeong-Ah Hwang, Se-Hwa Kim, Dae-Yong Kim, Nok-Hyun Park, Ho Sik Rho, Yong Jin Kim, Seong-Geun Oh, Chang Seok Lee
BACKGROUND/AIMS: Excessive melanogenesis often causes unaesthetic hyperpigmentation. In a previous report, our group introduced a newly synthesized depigmentary agent, Melasolv™ (3,4,5-trimethoxycinnamate thymol ester). In this study, we demonstrated the significant whitening efficacy of Melasolv using various melanocytes and human skin equivalents as in vitro experimental systems. METHODS: The depigmentary effect of Melasolv was tested in melan-a cells (immortalized normal murine melanocytes), α-melanocyte-stimulating hormone (α-MSH)-stimulated B16 murine melanoma cells, primary normal human melanocytes (NHMs), and human skin equivalent (MelanoDerm)...
June 30, 2017: Skin Pharmacology and Physiology
https://www.readbyqxmd.com/read/28660402/bisphosphonate-induced-zebra-lines-in-fibrous-dysplasia-of-bone-histo-radiographic-correlation-in-a-case-of-mccune-albright-syndrome
#17
Alessandro Corsi, Ernesto Ippolito, Pamela G Robey, Mara Riminucci, Alan Boyde
Bisphosphonates (BPs) are currently used in the treatment of diverse bone diseases including fibrous dysplasia of bone (FD). In pediatric patients, a radiographic consequence of cyclical administration of BPs is the development of apo-, epi-, and meta-physeal sclerotic bands, otherwise known as zebra lines, which result from the temporary inhibition of osteoclastic activity at the time of drug treatment. We report here on a child with McCune-Albright syndrome (FD in addition to hyperfunctioning endocrinopathies and skin hyperpigmentation) treated with cyclical intravenous infusions of pamidronate in which conventional radiography, contact microradiography, histology, and backscattered electron image analysis demonstrated that zebra lines formed only where bone was normal, were arrested at the boundary between FD-unaffected and FD-affected bone where bone is sclerotic, and were absent within the undermineralized FD bone...
June 28, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28660210/kinetics-of-tyrosinase-inhibitory-activity-using-vitis-vinifera-leaf-extracts
#18
Yung-Sheng Lin, Hui-Ju Chen, Jung-Ping Huang, Pei-Chi Lee, Ching-Ru Tsai, Tzu-Fang Hsu, Wen-Ying Huang
Natural medical plant is considered as a good source of tyrosinase inhibitors. Red vine leaf extract (RVLE) can be applied to a wide variety of medical disciplines, such as treatments for chronic venous insufficiency over many decades. This study investigated the tyrosinase inhibitory activity of RVLE containing gallic acid, chlorogenic acid, epicatechin, rutin, and resveratrol which are effective for skin hyperpigmentation. The five components contents are 1.03, 0.2, 18.55, 6.45, and 0.48 mg/g for gallic acid, chlorogenic acid, epicatechin, rutin, and resveratrol...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28658889/unilateral-blaschkoian-lichen-planus-a-series-of-cases-with-review-of-literature
#19
Surabhi Dayal, Priyadarshini Sahu, Poonam Verma, Ashish Amrani, Rajni Khare
A number of congenital and acquired dermatological diseases are known to follow lines of Blaschko. Lichen Planus (LP), commonly acquired inflammatory dermatosis, presents with various morphological forms but Blaschkoian variant is very less published in literature. We herein report a case series of six patients of various age groups with Blaschkoian LP, without any underlying predisposing factors. All these cases presented with asymptomatic to mildly pruritic, violaceous to hyperpigmented papules and plaques following the Blaschko lines...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28658350/multifocal-oral-melanoacanthoma-associated-with-addison-s-disease-and-hyperthyroidism-a-case-report
#20
Thinali Sousa Dantas, Isabelly Vidal do Nascimento, Maria Elisa Quezado Lima Verde, Ana Paula Negreiros Nunes Alves, Fabrício Bitu Sousa, Mário Rogério Lima Mota
Oral melanoacanthoma is a mucocutaneous, pigmented, rare, benign, and probably reactive lesion. This paper reports for the first time in the literature a case of multifocal oral melanoacanthoma in a patient diagnosed with Addison's disease and concomitant Graves' disease with hyperthyroidism. The patient presented with oral pigmented lesions, which were hypothesized to be mucosal pigmentation associated with Addison's disease. Due to their unusual clinical pattern, these oral lesions were biopsied and diagnosed as oral melanoacanthoma on histopathology and immunohistochemistry for HMB-45...
June 26, 2017: Archives of Endocrinology and Metabolism
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