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Acanthosis nigricans

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https://www.readbyqxmd.com/read/29115953/laparoscopic-sleeve-gastrectomy-improves-body-composition-and-alleviates-insulin-resistance-in-obesity-related-acanthosis-nigricans
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
https://www.readbyqxmd.com/read/28987250/differences-between-metabolically-healthy-vs-unhealthy-obese-children-and-adolescents
#9
Aditi Khokhar, Vivian Chin, Sheila Perez-Colon, Tanni Farook, Shipra Bansal, Elna Kochummen, Vatcharapan Umpaichitra
Obesity is on the rise worldwide. An obesity subtype, metabolically healthy obese (MHO), is resilient to unfavorable metabolic and cardiovascular effects. Factors predicting MHO phenotype are not well characterized. We aimed to identify MHO and metabolically unhealthy obese (MUO) children and adolescents with respect to metabolic factors, and to find predictors of MHO subtype. A retrospective chart review was done on children, ages 4-19 years, 99% African-American/Caribbean, with BMI ≥95th %tile. MUO was defined as meeting ≥1 of the following: fasting glucose ≥100 mg/dl, HbA1c >5...
2017: Journal of the National Medical Association
https://www.readbyqxmd.com/read/28940857/prevalence-of-dermatologic-manifestations-and-metabolic-biomarkers-in-women-with-polycystic-ovary-syndrome-in-north-china
#10
Jin-Ge Feng, Yan Guo, Li-Ang Ma, Jin Xing, Rui-Feng Sun, Wei Zhu
BACKGROUND: Cutaneous features of hyperandrogenism in polycystic ovary syndrome (PCOS) include acne, hirsutism, seborrhea, androgenic alopecia (AGA), and acanthosis nigricans (AN). However, the relationships have not been well known broadly in terms of clinical hyperandrogenism and biochemical markers. OBJECTIVES: The aim of this study was to investigate biochemical and metabolic parameters in relation to cutaneous characters women in with and without PCOS. METHODS: This was a cross-sectional retrospective study including 186 women with PCOS and 113 age-matched without PCOS women...
September 21, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/28930108/terra-firma-forme-dermatosis-misdiagnosed-as-nevoid-acanthosis-nigricans
#11
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
#12
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
#13
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
#14
Bianca Senger Vasconcelos Barros, Deborah Conte Santos, Marcela Haas Pizarro, Laura Gomes Nunes del 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
#15
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
#16
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...
November 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28663160/a-mutation-in-insr-in-a-child-presenting-with-severe-acanthosis-nigricans
#17
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
#18
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
#19
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
#20
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
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