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Acanthosis nigricans

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https://www.readbyqxmd.com/read/29351036/crouzon-with-acanthosis-nigricans-and-odontogenic-tumors-a-rare-form-of-syndromic-craniosynostosis
#1
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
https://www.readbyqxmd.com/read/29344325/polycystic-ovarian-syndrome-associated-confluent-and-reticulated-papillomatosis-report-of-a-patient-successfully-treated-with-azithromycin
#2
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
https://www.readbyqxmd.com/read/29328028/-skin-pathology-in-diabetes-mellitus-clinical-and-pathophysiological-correlations-review
#3
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
https://www.readbyqxmd.com/read/29280312/dysbiosis-signatures-of-gut-microbiota-along-the-sequence-from-healthy-young-patients-to-those-with-overweight-and-obesity
#4
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...
December 27, 2017: Obesity
https://www.readbyqxmd.com/read/29242050/mutant-fgfr3-associated-with-saddan-disease-causes-cytoskeleton-disorganization-through-plc%C3%AE-1-src-mediated-paxillin-hyperphosphorylation
#5
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
https://www.readbyqxmd.com/read/29241759/genetics-and-the-metabolic-syndrome
#6
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
https://www.readbyqxmd.com/read/29241757/cutaneous-manifestations-of-obesity-and-themetabolic-syndrome
#7
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
https://www.readbyqxmd.com/read/29241756/gynecologic-and-andrologic-dermatology-and-the-metabolic-syndrome
#8
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
https://www.readbyqxmd.com/read/29241752/acanthosis-nigricans-and-the-metabolic-syndrome
#9
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
https://www.readbyqxmd.com/read/29209995/early-clinical-expressions-of-insulin-resistance-the-real-enemy-to-look-for
#10
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...
December 5, 2017: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
https://www.readbyqxmd.com/read/29184811/dermatologic-manifestations-of-endocrine-disorders
#11
REVIEW
Michael Lause, Alisha Kamboj, Esteban Fernandez Faith
The skin serves as a window for clinicians to understand, diagnose, and monitor endocrine disease. Dermatologic manifestations of endocrinopathies contribute significantly to an individual's health and quality of life. In this review, we outline various disorders of the hypothalamic-pituitary axis, thyroid gland, pancreas, adrenal gland, and androgen axis as well as hereditary endocrine syndromes. In acromegaly, glycosaminoglycan deposition contributes to a thickening of skin and soft tissue, which manifests as coarsening and enlargement of facial and acral structures...
October 2017: Translational pediatrics
https://www.readbyqxmd.com/read/29178944/malignant-acanthosis-nigricans-an-early-diagnostic-clue-for-gastric-adenocarcinoma
#12
Qian Yu, Xiu-Li Li, Guo Ji, Yao Wang, Yu Gong, Hui Xu, Yu-Ling Shi
BACKGROUND: Malignant acanthosis nigricans (MAN), characterized by the presence of a hyperpigmented, velvety cutaneous thickening, is recognized as a cutaneous sign of internal malignancy. Few MAN has been reported in the Asian race ever before. CASE PRESENTATION: Here, we report a rare case of MAN with severe mucosa and soles and extraordinary facial involvement in the Asian race. A 74-year-old man presented with hyperkeratotic eruption for 7 months. Physical examination revealed hyperkeratotic plaques on the face, dorsal skin of fingers and heels, and papillomatosis of buccal mucosa...
November 25, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29115953/laparoscopic-sleeve-gastrectomy-improves-body-composition-and-alleviates-insulin-resistance-in-obesity-related-acanthosis-nigricans
#13
Yi Zhang, Cuiling Zhu, Xin Wen, Xingchun Wang, Liang Li, Sharvan Rampersad, Liesheng Lu, Donglei Zhou, Chunhua Qian, Ran Cui, Manna Zhang, Peng Yang, Shen Qu, Le Bu
BACKGROUND: Acanthosis nigricans (AN) has a close relationship with obesity. It is believed that obesity and AN have the common pathophysiological basis such as hyperinsulinism. This study is aimed to observe the effect of laparoscopic sleeve gastrectomy (LSG) on body composition and insulin resistance in Chinese obese patients with acanthosis nigricans. METHODS: A total of 37 obese patients who underwent LSG in our hospital were selected for analysis. They were divided into simple obesity (OB n = 14) and obesity with acanthosis nigricans (AN n = 23) group respectively...
November 7, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29075301/insulinoma-masquerading-as-a-loss-of-consciousness-in-a-teenage-girl-case-report-and-literature-review
#14
Meghana Gudala, Mahmuda Ahmed, Rushika Conroy, Ksenia Tonyushkina
BACKGROUND: Hypoglycemia due to a pancreatic beta cell neoplasm - insulinoma, is uncommon with only a few cases described. We report on a previously healthy 15-year-old Hispanic female with insulinoma who presented with a loss of consciousness due to hypoglycemia unawareness. CASE PRESENTATION: EM was first brought to the emergency department (ED) after she was found unresponsive at home with point of care (POC) glucose of 29 mg/dL(1.6 mmol/L) documented by emergency medical services (EMS) upon arrival...
2017: International Journal of Pediatric Endocrinology
https://www.readbyqxmd.com/read/29068064/familial-acanthosis-nigricans-with-p-k650t-fgfr3-mutation
#15
Kensuke Fukuchi, Kazuki Tatsuno, Kayo Matsushita, Akiharu Kubo, Taisuke Ito, Yoshiki Tokura
Acanthosis nigricans (AN) is a pigmentary skin disorder, which may present in association with clinical disorders such as obesity and malignancy. Occasionally, this unique skin manifestation is seen in alliance with several skeletal disorders, such Crouzon syndrome, achondroplasia and hypochondroplasia (HCH). These orthopedic disorders are known to have genetic changes in FGFR3. Recently, AN was reported in HCH with p.K650T mutation in FGFR3, and to date, there are only three reports, comprising 18 cases, describing AN harboring this specific gene mutation...
October 25, 2017: Journal of Dermatology
https://www.readbyqxmd.com/read/29046229/fetal-overnutrition-and-adolescent-hepatic-fat-fraction-the-exploring-perinatal-outcomes-in-children-study
#16
Anna Bellatorre, Ann Scherzinger, Elizabeth Stamm, Mercedes Martinez, Brandy Ringham, Dana Dabelea
OBJECTIVE: To determine if fetal overnutrition resulting from maternal obesity or gestational diabetes mellitus (GDM) is associated with increased liver fat during adolescence, adjusting for past and current metabolic risk factors. STUDY DESIGN: Data come from a historical prospective cohort study (Exploring Perinatal Outcomes in Children) of 254 mother-child pairs in Colorado who participated in 2 research visits at T1 (mean age 10.4, SD = 1.5 years) and at T2 (mean age 16...
October 15, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/29026747/acanthosis-nigricans-a-screening-test-for-insulin-resistance-an-important-risk-factor-for-diabetes-mellitus-type-2
#17
Meera Bhagyanathan, Deepak Dhayanithy, Vijayan Ampaya Parambath, R Bijayraj
BACKGROUND: Acanthosis nigricans (AN) is one of the signs suggestive of high insulin resistance (IR). IR is one of the mechanisms involved in pathogenesis of diabetes mellitus type-2 (DM Type-2). Thus, early detection of IR in children may allow us time to intervene well before the development of DM Type-2. In this study, 62% of children having AN had high IR. In children having both, AN and high body mass index (BMI), the incidence of IR was about 80%. This suggests that these easily detectable parameters alone can be useful in screening children at high risk of developing DM Type-2 in future...
January 2017: Journal of Family Medicine and Primary Care
https://www.readbyqxmd.com/read/29026271/acanthosis-nigricans-in-a-japanese-boy-with-hypochondroplasia-due-to-a-k650t-mutation-in-fgfr3
#18
Hiroki Hirai, Junpei Hamada, Kosei Hasegawa, Eiichi Ishii
Acanthosis nigricans (AN) is observed in some cases of skeletal dysplasia. However, AN has occasionally been reported in patients with hypochondroplasia (HCH), and a clinical diagnosis is sometimes difficult when its physical and radiological features are mild. Mutations in the gene encoding the fibroblast growth factor receptor 3 (FGFR3) have been identified as the cause of some types of skeletal dysplasia, which is diagnostically useful. Here, we report the case of a 3-yr-old Japanese boy who presented with AN...
2017: Clinical Pediatric Endocrinology: Case Reports and Clinical Investigations: Official Journal of the Japanese Society for Pediatric Endocrinology
https://www.readbyqxmd.com/read/29019756/imaging-of-skeletal-disorders-caused-by-fibroblast-growth-factor-receptor-gene-mutations
#19
Kiran M Sargar, Achint K Singh, Simon C Kao
Fibroblast growth factors and fibroblast growth factor receptors (FGFRs) play important roles in human axial and craniofacial skeletal development. FGFR1, FGFR2, and FGFR3 are crucial for both chondrogenesis and osteogenesis. Mutations in the genes encoding FGFRs, types 1-3, are responsible for various skeletal dysplasias and craniosynostosis syndromes. Many of these disorders are relatively common in the pediatric population, and diagnosis is often challenging. These skeletal disorders can be classified based on which FGFR is affected...
October 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28989569/clinical-profile-of-diabetes-at-diagnosis-among-children-and-adolescents-at-an-endocrine-clinic-in-ghana
#20
Emmanuel Ameyaw, Serwah B Asafo-Agyei, Sumithira Thavapalan, Angela C Middlehurst, Graham D Ogle
AIM: To determine the clinical features of diabetes in children and adolescents in Ghana. METHODS: Retrospective review of clinical features of all children and adolescents with new-onset diabetes seen at the paediatric endocrinology clinic of Komfo Anokye Teaching Hospital in Kumasi, from February 2012 to Auguest 2016. RESULTS: One hundred and six subjects presented with diabetes. Ninety (84.9%) were diagnosed by clinical features and family history as type 1, and 16 (15...
September 15, 2017: World Journal of Diabetes
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