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Acanthosis nigricans

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https://www.readbyqxmd.com/read/28930108/terra-firma-forme-dermatosis-misdiagnosed-as-nevoid-acanthosis-nigricans
#1
Gulsen Tukenmez Demirci, Ayse Tulin Mansur, Ebru Demiralay
Terra firma-forme dermatosis (TFFD) is a clinical condition characterized by brown-gray, velvety, pigmented patches or plaques, resembling dirt on the skin. Nevoid acanthosis nigricans (NAN) is a rare and recently described form of acanthosis nigricans occurring during childhood or early adulthood. Herein we describe a patient with TFFD, initially misdiagnosed as NAN. The patient had developed hyperkeratotic and hyperpigmented plaques on and around the umbilicus during pregnancy. Though regular in bathing practices, she could not clear away the lesions and concerned marks for inesthetic appearance...
October 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28892990/prevalence-of-acanthosis-nigricans-and-related-factors-in-iranian-obese-children
#2
Fatemeh Sayarifard, Azadeh Sayarifard, Bahar Allahverdi, Sara Ipakchi, Mastaneh Moghtaderi, Bahareh Yaghmaei
INTRODUCTION: Recognition of Acanthosis nigricans (AN) provides important opportunities for screening of obesity syndrome, dyslipidemia, hypertension and insulin resistance with diabetes mellitus 2. Considering the high prevalence of obesity among Iranian children, we designed this study to estimate the prevalence of AN and related laboratory factors in Iranian obese children. MATERIALS AND METHODS: Seventy-one obese children were enrolled in this study. Diagnosis of AN was done by clinical examination...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28822702/antibody-mediated-extreme-insulin-resistance-a-report-of-three-cases
#3
Han Na Kim, Betiel Fesseha, Laura Anzaldi, Allison Tsao, Panagis Galiatsatos, Aniket Sidhaye
BACKGROUND: Type 2 diabetes mellitus is characterized by relative insulin deficiency and insulin resistance. Features suggesting severe insulin resistance include acanthosis nigricans, hyperandrogenism, weight loss, and recurrent hospital admissions for diabetic ketoacidosis. In rare circumstances, hyperglycemia persists despite administration of massive doses of insulin. In these cases, it is important to consider autoimmune etiologies for insulin resistance such as type B insulin resistance and insulin antibody-mediated extreme insulin resistance, which carry high morbidity and mortality if untreated...
August 16, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/28809804/type-1-diabetes-and-non-alcoholic-fatty-liver-disease-when-should-we-be-concerned-a-nationwide-study-in-brazil
#4
Bianca Senger Vasconcelos Barros, Deborah Conte Santos, Marcela Haas Pizarro, Laura Gomes Nunes de Melo, Marilia Brito Gomes
Obesity is increasing worldwide, affecting even patients with type 1 diabetes (T1D). A higher prevalence of associated comorbidities is expected, such as non-alcoholic fatty liver disease (NAFLD). This paper reports a cross-sectional multicenter study on a population with T1D (n = 1662), which aimed to evaluate the prevalence of metabolic syndrome (MS), a known risk factor for NAFLD, and to investigate predisposing factors associated with MS, as well as factors associated with elevated alanine aminotransferase (ALT), as it correlates to liver fat content...
August 15, 2017: Nutrients
https://www.readbyqxmd.com/read/28758315/acanthosis-nigricans-and-its-response-to-metformin
#5
Dinesh Giri, Hussain Alsaffar, Renuka Ramakrishnan
Acanthosis nigricans (AN) is the most common cutaneous manifestation of insulin resistance (IR) and is commonly seen in non-Caucasian populations. Variable benefits of metformin in the treatment of AN have been reported in the literature. We report an adolescent Caucasian boy with IR and extensive AN who showed complete resolution of AN after 2 years of metformin, despite persistence of IR.
July 30, 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28685930/paediatric-obesity-treatment-had-better-outcomes-when-children-were-younger-well-motivated-and-did-not-have-acanthosis-nigricans
#6
Marketta Dalla Valle, Tiina Laatikainen, Miika Lehikoinen, Päivi Nykänen, Jarmo Jääskeläinen
AIM: This study evaluated the efficacy of a paediatric obesity treatment programme and explored the factors that contributed to the outcome. METHODS: We recorded the body mass index standard deviation scores (BMI SDS) of 654 children aged 2-18 years who were treated for obesity in 2005-2012 in three Finnish hospitals, one year before treatment and up to three years after treatment. The family-based multidisciplinary treatment included nutritional advice, exercise and behavioural counselling...
July 7, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28663160/a-mutation-in-insr-in-a-child-presenting-with-severe-acanthosis-nigricans
#7
Hale Tuhan, Serdar Ceylaner, Özlem Nalbantoğlu, Sezer Acar, Ayhan Abacı, Ece Böber, Korcan Demir
Rabson Mendenhall Syndrome (RMS) is an autosomal recessive disorder due to the mutations in insulin receptor gene (INSR), which is mapped to 19p13.2. RMS is characterized by acanthosis nigricans, generalized lanugo, tooth and nail dysplasia, high nasal bridge and growth retardation. A 5-year-old female patient was referred due to acanthosis nigricans and generalized lanugo. On her physical examination, severe acanthosis nigricans of the neck, axillae, the external genitalia and antecubital regions, generalized lanugo, mildly decreased subcutaneous fat, dysmorphic facial features, and polydactyly on her left arm were noted...
June 30, 2017: Journal of Clinical Research in Pediatric Endocrinology
https://www.readbyqxmd.com/read/28620546/ovarian-morphology-is-associated-with-insulin-resistance-in-women-with-polycystic-ovary-syndrome-a-cross-sectional-study
#8
Sara Pittenger Reid, Chia-Ning Kao, Lauri Pasch, Kanade Shinkai, Marcelle I Cedars, Heather G Huddleston
BACKGROUND: Polycystic ovary syndrome (PCOS) is a very common disorder well known to be associated with insulin resistance and metabolic disease. Insulin resistance is likely involved in the promotion of the PCOS reproductive phenotype and may mediate some of the ovarian morphology seen in the disorder. The phenotype of each individual woman with PCOS can vary widely as can her metabolic risk. METHODS: This is a cross-sectional study of patients seen in a multidisciplinary PCOS clinic at the University of California at San Francisco between 2006 and 2014...
2017: Fertility Research and Practice
https://www.readbyqxmd.com/read/28620495/familial-partial-lipodystrophy-and-proteinuric-renal-disease-due-to-a-missense-c-1045c%C3%A2-%C3%A2-t-lmna-mutation
#9
Athanasios Fountas, Zoe Giotaki, Evangelia Dounousi, George Liapis, Alexandra Bargiota, Agathocles Tsatsoulis, Stelios Tigas
Proteinuric renal disease is prevalent in congenital or acquired forms of generalized lipodystrophy. In contrast, an association between familial partial lipodystrophy (FPLD) and renal disease has been documented in very few cases. A 22-year-old female patient presented with impaired glucose tolerance, hyperinsulinemia, hirsutism and oligomenorrhea. On examination, there was partial loss of subcutaneous adipose tissue in the face, upper and lower limbs, bird-like facies with micrognathia and low set ears and mild acanthosis nigricans...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28611549/mutation-c-943g-t-p-ala315ser-in-fgfr2-causing-a-mild-phenotype-of-crouzon-craniofacial-dysostosis-in-a-three-generation-family
#10
Luitgard M Graul-Neumann, Eva Klopocki, Nicolai Adolphs, Martin A Mensah, Wolfram Kress
Crouzon syndrome craniofacial dysostosis type I [OMIM 123500] is caused by mutations in the gene encoding fibroblast growth factor receptor-2 (FGFR2). An overlapping phenotype with Muenke and Crouzon syndrome with acanthosis nigricans (FGFR3 mutations) is known. The clinical diagnosis can be corroborated by molecular studies in about 80-90% of the cases. No clear genotype/phenotype correlation has been identified yet. Here, we describe a second family with a mild phenotype in which the FGFR2 mutation c.943G>T leading to the amino acid substitution p...
March 2017: Molecular Syndromology
https://www.readbyqxmd.com/read/28526006/cardiometabolic-profile-of-obese-children-in-a-sub-saharan-african-setting-a-cross-sectional-study
#11
Eunice Chedjou-Nono, Suzanne Sap, Simeon-Pierre Choukem, Issa Ngosso Tetanye, Daniel Nebongo, Olivier Koki Ndombo
BACKGROUND: Cardiovascular and metabolic consequences of obesity in children, unlike adults, are still not well understood nor have they been subject to extensive research in Africa. We aimed to identify the cardio-metabolic complications associated with childhood obesity at the early phase of the management of obese children in a reference center in Cameroon. METHODS: In this cross-sectional study conducted from November 2013 to September 2014 and based on World Health Organization (WHO) classification of Obesity (BMI > 3SD under 5 years and BMI > 2SD from 5 and above), we included children aged 3 to 17 years who were being followed up for obesity at the pediatric endocrinology unit of the Mother and Child Center of the Chantal BIYA Foundation in Yaounde, Cameroon...
May 19, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28511831/obstructive-sleep-apnea-and-dermatologic-disorders
#12
Madhulika A Gupta, Fiona C Simpson, Branka Vujcic, Aditya K Gupta
Obstructive sleep apnea (OSA) is present in at least 2% of women and 4% of men, and its prevalence is increasing, because a major predisposing factor for OSA is a high body mass index. Psoriasis has the most strongly substantiated link with OSA, where the relationship may be bidirectional. Dermatologic disorders may be comorbid with OSA due to several factors: (i) the heightened proinflammatory state in OSA, which can occur independent of body mass index, and may exacerbate inflammatory dermatoses; (ii) intermittent hypoxemia may promote neovascularization and tumor growth in certain cancers, such as melanoma; (iii) obesity, present in majority of OSA patients, can be associated with a heightened proinflammatory state; (iv) upper airway obstruction due to local tumors or soft tissue swelling due to physical urticaria or angioedema; (v) acute nasal congestion in the atopic patient with allergic rhinitis; (vi) dermatologic disorders associated with other OSA risk factors (eg, acanthosis nigricans and metabolic syndrome); and (vii) a high sympathetic tone (eg, in atopic dermatitis) and resultant sleep fragmentation contributing to upper airway instability during sleep...
May 2017: Clinics in Dermatology
https://www.readbyqxmd.com/read/28465605/arterial-stiffening-insulin-resistance-and-acanthosis-nigricans-in-a-community-sample-of-adolescents-with-obesity
#13
L D Hudson, S Kinra, I C K Wong, R M Viner
Acanthosis Nigricans (AN) is a common finding in adolescents with obesity. Little is known about its relevance for cardiovascular (CVS) risk, in particular arterial stiffening. We investigated associations between AN, conventional markers of CVS risk and carotid-radial pulse wave velocity (PWV) in a community sample of adolescents with obesity aged 12-19 recruited to an obesity trial. AN was present in 63% of subjects and 43% had severe grading. Presence of AN and severe AN were associated with z-score of body mass index (BMIz)...
September 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28457031/prepubertal-childhood-onset-type-2-diabetes-mellitus-four-case-reports
#14
Anandakumar Amutha, Ranjit Unnikrishnan, Ranjit Mohan Anjana, Viswanathan Mohan
BACKGROUND: The prevalence of childhood onset type 2 diabetes (T2D) is increasing, but prepubertal T2D is still unusual. METHODS: We report four cases of T2D with onset at or below 10 years of age registered at a tertiary diabetes centre in southern India.T2D was diagnosed based on the absence of ketosis, good beta cell reserve as shown by the C peptide assay, absence of GAD antibodies and pancreatic calculi, and response to oral hypoglycemic agents. RESULTS: All four patients were female, obese and had acanthosis nigricans...
February 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/28440765/association-of-metabolic-syndrome-with-low-birth-weight-intake-of-high-calorie-diets-and-acanthosis-nigricans-in-children-and-adolescents-with-overweight-and-obesity
#15
Marlen Velazquez-Bautista, Joana Jazmín López-Sandoval, Mercedes González-Hita, Eduardo Vázquez-Valls, Iris Zamihara Cabrera-Valencia, Blanca Miriam Torres-Mendoza
OBJECTIVE: The theory of fetal programming suggests that low birth weight (LBW) predisposes to greater food intake and increases the chance of overweight and obesity, which are in turn associated to conditions such as metabolic syndrome (MS) and acanthosis nigricans. The study objective was to ascertain whether an association exists between MS, LBW, intake of high-calorie diets, and acanthosis nigricans in children and adolescents with overweight or obesity. MATERIAL AND METHODS: A case-control was conducted on 100 children who attended the overweight and obesity outpatient clinic of the OPD Hospital Civil de Guadalajara "Fray Antonio Alcalde"...
January 2017: Endocrinología, diabetes y nutrición
https://www.readbyqxmd.com/read/28413386/severe-malignant-acanthosis-nigricans-associated-with-adenocarcinoma-of-the-endometrium-in-a-young-obese-female
#16
Jacqueline Deen, Thomas Moloney, David Burdon-Jones
Acanthosis nigricans (AN) is a dermatopathy associated with insulin-resistance, drugs, endocrine disorders, chromosomal abnormalities (benign AN), and neoplasia (malignant AN). Malignant AN (MAN) is a rare paraneoplastic skin syndrome most commonly associated with gastric adenocarcinoma and other intra-abdominal malignancies. We report the case of a 28-year-old female with AN associated with obesity, insulin resistance, and endometrial adenocarcinoma. Although rare, MAN is often an initial sign of malignancy and must trigger extensive investigation, particularly in patients with sudden development of possibly paraneoplastic dermatoses or in patients diagnosed with benign AN with any atypical features...
January 2017: Case Reports in Dermatology
https://www.readbyqxmd.com/read/28405549/cutaneous-manifestations-of-polycystic-ovary-syndrome-a-cross-sectional-clinical-study
#17
Mohammad Abid Keen, Iffat Hassan Shah, Gousia Sheikh
BACKGROUND: Polycystic ovary syndrome (PCOS) is one of the most common endocrine disorders in women, affecting 5-10% of reproductive-aged women. The dermatologic manifestations of hyperandrogenism, chiefly hirsutism, acne vulgaris, androgenic alopecia, and acanthosis nigricans, are among the cardinal manifestations of PCOS. AIM: To study the incidence and prevalence of various cutaneous manifestations in patients with PCOS and to correlate these skin manifestations with hormonal changes...
March 2017: Indian Dermatology Online Journal
https://www.readbyqxmd.com/read/28392666/successful-repigmentation-of-vitiligo-like-hypopigmentation-in-a-case-of-acanthosis-nigricans
#18
Seung Hyun Chun, Ji Hyun Park, Jae Beom Park, Il-Hwan Kim
No abstract text is available yet for this article.
April 2017: Annals of Dermatology
https://www.readbyqxmd.com/read/28367214/the-associations-of-serum-uric-acid-with-obesity-related-acanthosis-nigricans-and-related-metabolic-indices
#19
Cuiling Zhu, Ran Cui, Mingming Gao, Sharvan Rampersad, Hui You, Chunjun Sheng, Peng Yang, Hui Sheng, Xiaoyun Cheng, Le Bu, Shen Qu
Objective. Recent studies have shown that hyperuricemia (HUA) is associated with hypertension, dyslipidemia, insulin resistance, and metabolic syndrome (MetS). We aimed to examine the relationship of serum UA with Acanthosis nigricans (AN) and related metabolic indices in obese patients. Methods. A cross-sectional study with 411 obese patients recruited from our department was analyzed in this study. Weight, body mass index (BMI), UA, lipid profile, liver function, and renal function were measured in all participants...
2017: International Journal of Endocrinology
https://www.readbyqxmd.com/read/28295566/concomitant-confluent-and-reticulated-papillomatosis-and-acanthosis-nigricans-in-an-obese-girl-with-insulin-resistance-successfully-treated-with-oral-minocycline-case-report-and-published-work-review
#20
Takeshi Fukumoto, Takeshi Kozaru, Masanobu Sakaguchi, Masahiro Oka
Concomitant confluent and reticulated papillomatosis (CRP) and acanthosis nigricans (AN) is rare. We present a case of concomitant CRP and obesity-associated AN in a 12-year-old obese Japanese girl. Curiously, oral minocycline therapy, which has been shown to be effective for CRP, was effective against both CRP and AN. Possible mechanisms by which minocycline could have improved skin lesions of CRP and obesity-associated AN are discussed. In addition, reports of concomitant CRP and obesity-associated AN are reviewed...
March 11, 2017: Journal of Dermatology
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