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Acanthosis nigricans

Rai-Hseng Hsu, Wei-De Lin, Mei-Chyn Chao, Hui-Pin Hsiao, Siew-Lee Wong, Pao-Chin Chiu, Shao-Yin Chu, Yu-Yuan Ke, Beng-Huat Lau, Yin-Hsiu Chien, Wuh-Liang Hwu, Fuu-Jen Tsai, Chung-Hsing Wang, Ni-Chung Lee
BACKGROUND: Congenital generalized lipodystrophy (CGL) is a rare disorder characterized by scarce adipose tissue. This disease is distributed worldwide, but little is known about these patients in the Chinese population. Here, we delineate the phenotype and prognosis of CGL in our cohort. METHODS: Patients diagnosed with CGL from 8 medical centers were reviewed. The initial presentation, laboratory findings, and molecular testing were retrospectively analyzed. RESULTS: A total of 16 patients were analyzed, and the current median age was 3...
February 22, 2018: Journal of the Formosan Medical Association, Taiwan Yi Zhi
Ece Nur Degirmentepe, Sule Gungor, Emek Kocaturk, Utkan Kiziltac, Mine Adas, Selver Ozekinci, Amor Khachemoune
Acromegaly is a systemic syndrome caused by overproduction of growth hormone. Cutaneous, endocrine, cardiovascular, skeletal, and respiratory systems are affected. Cutaneous changes in acromegaly relate to overexpression of growth hormone and insulin-like growth factor 1 on skin cells and adnexa. Dermal glycosaminoglycan accumulation and edema cause skin distention that is most prominent in the face, hands, and feet. Oily skin with large pores, hypertrichosis, and excessive sweating are common features. Pigmented skin tags, acanthosis nigricans, and psoriasis are also encountered...
August 15, 2017: Dermatology Online Journal
Pınar Kocaay, Zeynep Siklar, Sema Buyukfirat, Merih Berberoglu
STUDY OBJECTIVE: Polycystic ovarian syndrome (PCOS) is a common endocrine disorder characterized by hyperandrogenism and chronic anovulation, which affects 5-10% of reproductive age females. Diagnosis of adult patients with PCOS is made easily with clinical and laboratory methods and the antimullerian hormone (AMH) level are accepted as a good indicator. However, there is still no complete consensus on the diagnosis of PCOS in adolescents. DESIGN: and Settings: Prospective cohort study, December 2013 to November 2014 PARTICIPANTS: The study was conducted on adolescent girls with oligomenorrhea, with at least two years since menarche...
February 17, 2018: Journal of Pediatric and Adolescent Gynecology
Marco A Rocha, Ediléia Bagatin
Acne is a multifactorial and inflammatory disease of pilosebaceous follicles, which affects most adolescents. Recent epidemiological data revealed a difference in adults affected by this disease. Women have a high prevalence and incidence when compared with men, especially after 25 years of age. In contrast to what was initially thought, most of these patients do not present endocrinopathy capable of leading to the development of the lesions. When present, polycystic ovarian syndrome is the main cause. However, in these cases, acne is rarely the only dermatological manifestation; hirsutism and acanthosis nigricans are often present...
2018: Clinical, Cosmetic and Investigational Dermatology
Patrícia O Benetolo, Maria I M Fernandes, Ieda R L Del Ciampo, Jorge Elias-Junior, Regina Sawamura
OBJECTIVE: To determine the frequency of nonalcoholic fatty liver disease using nuclear magnetic resonance as a noninvasive method. METHODOLOGY: This was a cross-sectional study conducted on 50 children and adolescents followed up at an outpatient obesity clinic. The subjects were submitted to physical examination, laboratory tests (transaminases, liver function tests, lipid profile, glycemia, and basal insulin) and abdominal nuclear magnetic resonance (calculation of hepatic, visceral, and subcutaneous fat)...
February 10, 2018: Jornal de Pediatria
Khadija Irfan Khawaja, Saqib Ali Mian, Aziz Fatima, Ghulam Murtaza Tahir, Fehmida Farrukh Khan, Saira Burney, Ali Hasan, Faisal Masud
INTRODUCTION: Metabolic heterogeneity among obese individuals is thought to translate into variation in cardiovascular risk. Identifying obese people with an unfavourable metabolic profile may allow targeting preventive strategies towards those at greatest risk. This study aimed to identify clinical, biochemical and immunological differences between insulin sensitive and resistant obese subgroups, to understand the population-specific pathophysiological basis of the adverse cardiovascular risk profile in the latter group...
February 12, 2018: Singapore Medical Journal
Stefania Innaurato, Gemma V Brierley, Valeria Grasso, Arianna Massimi, Rossella Gaudino, Sara Sileno, Sergio Bernardini, Robert Semple, Fabrizio Barbetti
AIM: Hypoglycemia in childhood is very rare and can be caused by genetic mutations or insulin-secreting neoplasms. Postprandial hypoglycemia has previously been associated with insulin receptor (INSR) gene mutations. We aimed to identify the cause of postprandial hypoglycemia in a 10-year-old boy. SUBJECTS: We studied the symptomatic proband and his apparently asymptomatic mother and elder brother. All of them were lean. METHODS: Metabolic screening of the proband included a 5-hour oral glucose tolerance test (OGTT), angio-magnetic resonance imaging, and18 F-dihydroxyphenylalanine positron emission tomography/computed tomography imaging of the pancreas...
February 7, 2018: Pediatric Diabetes
Alexander M Sy, Nora V Bergasa
A 34-year-old woman was referred to the hepatology clinic for evaluation of an increased serum alkaline phosphatase (ALP) level. She was gravida 5 and in her 38th week of gestation. Her obstetric history was significant for 2 uncomplicated spontaneous term vaginal deliveries resulting in live births and 2 spontaneous abortions. The patient reported generalized pruritus for 2 months prior to the visit. She had no comorbidities and denied any other symptoms. She reported no family history of liver disease or complications during pregnancy in relatives...
February 2018: Journal of Family Practice
Ricardo Capitao, Carlos Bello, Ricardo Fonseca, Catarina Saraiva
The authors describe a case of a life-threatening diabetic emergency 25 days after initiation of nivolumab (3 mg/kg) for stage 4 lung adenocarcinoma. She was admitted to the emergency department, with hyperglycaemia-related signs and symptoms, such as polyuria, polydipsia, weight loss, confusion, asthenia, dehydration, hypotension and Kussmaul respiratory pattern. Her body mass index was 21.9 kg/m 2 and she did not show acanthosis nigricans. Arterial blood gas determination revealed high anion gap metabolic acidaemia and blood tests showed hyperglycaemia (1060 mg/dL), hyperketonaemia (beta-hydroxybutyrate: 6...
January 29, 2018: BMJ Case Reports
Mrinal Gupta, Vikram K Mahajan
Background: Facial hypermelanosis is a significant cause of cosmetic disfigurement, social embarrassment and psychological morbidity affecting quality of life. Objective: To study clinicoepidemlogic patterns of facial hypermelanoses among men. Material and Methods: Medical records of all adult males presenting with facial hypermelanoses were analyzed for this retrospective cross sectional study for demographic details, duration, cosmetic usage, sun exposure, drug intake, infections, systemic or cutaneous diseases, and family history of hypermelanotic dermatosis...
December 1, 2017: Journal of Dermatological Case Reports
Wen Xu, Donna M McDonald-McGinn, Alexandra J Melchiorre, Elaine H Zackai, Scott P Bartlett, Jesse A Taylor
Crouzon syndrome with acanthosis nigricans (CAN) is caused by a mutation in the fibroblast growth factor receptor ( FGFR) 3 gene that presents clinically as Crouzonoid craniofacial features in association with other anomalies such as acanthosis nigricans and benign odontogenic tumors. Diagnosis through the use of genetic mutational analysis is critical, as it alerts the surgeon to the need for careful screening for jaw tumors so that timely treatment in the form of curettage or segmental resection can be provided...
February 2018: Cleft Palate-craniofacial Journal
Laura Paul Fite, Philip R Cohen
Polycystic ovarian syndrome is a common endocrine disorder with a variety of dermatologic manifestations among young women. Confluent and reticulated papillomatosis is a rare dermatosis of unknown etiology that is seldom reported in patients with polycystic ovarian syndrome. We describe the case of a young woman with obesity, confluent and reticulated papillomatosis, and concurrent acanthosis nigricans. Her history, physical examination, and laboratory evaluation led to the diagnosis of polycystic ovarian syndrome...
September 2017: Journal of Clinical and Aesthetic Dermatology
K Kochet, I Lytus, I Svistunov, O Sulaieva
Skin pathology is registered in vast majority of patients with diabetes mellitus (DM). Despite the abundance of publications on dermatological problems in DM, there is still a number of gaps to be discussed in terms of pathophysiological mechanisms. The goal of this review was to assess the mechanisms of development of different skin pathologies under DM. One of the key pathogenic mechanisms of skin lesions in diabetes is hyperglycemia and the effects of the advanced glycation end products, inducing oxidative stress, endothelial dysfunction and inflammation; that in its turn can accelerate the mechanisms of skin aging, the development of diabetic dermopathy and scleredema diabeticorum...
December 2017: Georgian Medical News
Renyuan Gao, Cuiling Zhu, Hao Li, Mingming Yin, Cheng Pan, Linsheng Huang, Cheng Kong, Xingchun Wang, Yi Zhang, Shen Qu, Huanlong Qin
OBJECTIVE: To investigate the gut microbiota in healthy volunteers (HVs), patients with overweight (OW), and patients with obesity (OB), including those with acanthosis nigricans (AN) or without AN (N-AN). METHODS: Microbial 16S rRNA genes were examined by using pyrosequencing technology and analyzed by using bioinformatics methods. RESULTS: Subjects in the OW and OB groups showed severe disturbances in glycemic control, lipid profile, and inflammatory markers (all P < 0...
February 2018: Obesity
R Montone, M G Romanelli, A Baruzzi, F Ferrarini, E Liboi, P M-J Lievens
K650M/E substitutions in the Fibroblast growth factor receptor 3 (FGFR3) are associated with Severe Achondroplasia with Developmental Delay and Acanthosis Nigricans (SADDAN) and Thanatophoric Dysplasia type II (TDII), respectively. Both SADDAN and TDII present with affected endochondral ossification marked by impaired chondrocyte functions and growth plate disorganization. In vitro, K650M/E substitutions confer FGFR3 constitutive kinase activity leading to impaired biosynthesis and accumulation of immature receptors in endoplasmic reticulum (ER)/Golgi...
December 11, 2017: International Journal of Biochemistry & Cell Biology
Emma Fanning, Donal O'Shea
Originally coined as "syndrome X" in 1988 by Gerald Reaven (1928), the metabolic syndrome (MetS) encompasses a constellation of risk factors, the coincidence of which amounts to an increased cardiovascular and diabetic risk. Rising numbers of dermatoses are being recognized as cutaneous markers of MetS. Dermatologists should look beyond treating the cutaneous condition and quantify the associated increase in cardiovascular risk. The original dermatosis associated with obesity was acanthosis nigricans-described in 1889 by Paul Gerson Unna (1850-1929) and Sigmund Pollitzer (1859-1937)...
January 2018: Clinics in Dermatology
Tuğba Kevser Uzuncakmak, Necmettin Akdeniz, Ayse Serap Karadag
The cutaneous manifestations of obesity and the associated metabolic syndrome (MetS) may present with a wide variety of cutaneous findings, including acanthosis nigricans, acrochordon, cellulitis, psoriasis, hidradenitis suppurativa, acne, and hirsutism. Being aware of such clinical signs and the underlying systemic disorders may facilitate earlier diagnoses, thereby permitting earlier of therapy initiation and prevention of long-term sequelae. In this process, dermatologists are key figures in the early detection of MetS and its clinical manifestations...
January 2018: Clinics in Dermatology
Maria Magdalena Roth, Nicholas Leader, George Kroumpouzos
The relationship of sex hormones to obesity and inflammation has been extensively studied. Research on endogenous and exogenous sex steroids, including studies on animal models of metabolic syndrome (MetS), has indicated that sex hormones are involved in metabolic pathways relevant to MetS. Lower testosterone levels in men and higher levels in women increase risks of MetS and type 2 diabetes mellitus (T2DM). Lower levels of sex hormone-binding globulin increase risks of MetS and T2DM in both sexes. Skin diseases that are sex hormone mediated, such as polycystic ovary syndrome, acanthosis nigricans, acne vulgaris, and pattern alopecia, have been associated with insulin resistance...
January 2018: Clinics in Dermatology
Ayse Serap Karadağ, Yi You, Retno Danarti, Safaa Al-Khuzaei, WenChieh Chen
No abstract text is available yet for this article.
January 2018: Clinics in Dermatology
René Rodríguez-Gutiérrez, Alejandro Salcido-Montenegro, José Gerardo González-González
The type 2 diabetes mellitus epidemic threatens public healthcare systems worldwide. Efforts to prevent chronic complications of diabetes and reduce their associated mortality have been ineffective. Hence, early prevention of type 2 diabetes mellitus and cardiovascular disease needs to be prioritized. This strategy, however, must be centered not on an approach based on hyperglycemia but on early pathophysiologic mechanisms, such as insulin resistance. Non-alcoholic fatty liver disease, androgenic alopecia, acanthosis nigricans, and polycystic ovarian syndrome are all well-accepted early clinical manifestations of insulin resistance that represent, in themselves, a risk for further development of type 2 diabetes and that appear years before hyperglycemia...
February 2018: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
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