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https://www.readbyqxmd.com/read/27906097/a-10-year-old-child-presenting-with-syndromic-paucity-of-bile-ducts-alagille-syndrome-a-case-report
#1
Girish Kumar Pati, Ayaskanta Singh, Preetam Nath, Jimmy Narayan, Pradeep Kumar Padhi, Prasanta Kumar Parida, Kaumudee Pattnaik, Chittaranjan Panda, Shivaram Prasad Singh
BACKGROUND: Alagille syndrome, a rare genetic disorder with autosomal dominant transmission, manifests with five major features: paucity of interlobular bile ducts, characteristic facies, posterior embryotoxon, vertebral defects, and peripheral pulmonary stenosis. Globally, only 500 cases have so far been reported, with only five cases reported in the Indian subcontinent. Rarely, Alagille syndrome also presents with skin manifestations and early-onset chronic liver disease, which was found in our case...
November 30, 2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27862945/analysis-of-copy-number-variants-in-11-pairs-of-monozygotic-twins-with-neurofibromatosis-type-1
#2
Emily R Sites, Teresa A Smolarek, Lisa J Martin, David H Viskochil, David A Stevenson, Nicole J Ullrich, Ludwine M Messiaen, Elizabeth K Schorry
Phenotypic variability among individuals with neurofibromatosis type 1 (NF1) has long been a challenge for clinicians and an enigma for researchers. Members of the same family and even identical twins with NF1 often demonstrate variable disease expression. Many mechanisms for this variability have been proposed. We have performed an exploratory study of copy number variants (CNVs) as a possible source of phenotypic variability in NF1. We enrolled 11 pairs of monozygotic (MZ) twins with NF1 and their parents, catalogued their clinical characteristics, and utilized a single nucleotide polymorphism (SNP) microarray to identify CNVs in blood and saliva...
November 14, 2016: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/27857528/mccune-albright-syndrome-association-of-fibrous-dysplasia-caf%C3%A3-au-lait-skin-spots-and-hyperthyroidism-case-report
#3
Iulian Raus, Roxana Elena Coroiu
McCune-Albright syndrome is a rare sporadic disease characterized by bone fibrous dysplasia, café-au-lait skin spots and a variable association of hyperfunctional endocrine disorders. Fibrous dysplasia (FD), which can involve the craniofacial, axial, and appendicular skeleton, may range from an isolated, asymptomatic monostotic lesion to a severe disabling polyostotic disease involving the entire skeleton. A twenty-five-year old male patient presented to our clinic with recently developed heart palpitations...
2016: Clujul Medical (1957)
https://www.readbyqxmd.com/read/27730789/neurofibromatosis-i-presentating-with-multiple-spinal-and-intracranial-neurofibromas
#4
Sunil Tripathi, C B Pandey, T N Dubey, Priyanka Singh
Von Recklinghausen's neurofibromatosis (NF-1) is a phacomatosis characterised by widespread nervous system tumours with cutaneous manifestations and variably associated anomalies. We report here a case, who, in addition to classical features of NF-1 (café-au-lait spots, cutaneous and subcutaneous neurofibromas) demonstrated radiological evidence of both spinal and intracranial neurofibromas and an incidentally discovered horse-shoe kidney. The unique constellation of spinal and intracranial neurofibromas, with associated horse-shoe kidney...
February 2016: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/27721788/equatorial-staphyloma-associated-with-neurofibromatosis-type-1
#5
Yoshiaki Shimada, Masayuki Horiguchi
We report a case of a 38-year-old man who presented with a recently self-detected lump under his left eyebrow. Previous ophthalmological history was unremarkable except for unilateral high myopia (left eye) since childhood. The appearance of the left eye was seemingly normal; however, with the top lid pulled up on downward gaze, a dark brown bulge emerged. The bulge was 10 × 7 mm and approximately 4 mm in height, and was covered by the extended superior rectus muscle. The diagnosis of equatorial staphyloma was made after coronal T1-weighted magnetic resonance imaging of the orbit revealed the dilatation of the vitreous cavity...
May 2016: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/27717672/-congenital-kissing-lesions-nevus-or-caf%C3%A3-au-lait-spot
#6
A Durazzo, O Boccara, S Fraitag, T Fusade, A Picard, N Kadlub
INTRODUCTION: "Café au lait" spots (CLS) are pigmented skin lesions principally located at the trunk and the limbs. Histologically, CLSs consist in an excessive pigmentation of the epidermis, with no risk of malignant transformation. The "kissing" nevus is a rare pigmented congenital nevus affecting both lower and upper eyelids in a mirror layout. As other nevi, it presents a theoretical risk of malignant transformation. These two pigmented lesions are responsible for aesthetic discomfort when affecting the face...
October 4, 2016: Revue de Stomatologie, de Chirurgie Maxillo-faciale et de Chirurgie Orale
https://www.readbyqxmd.com/read/27693716/downregulation-of-melanogenesis-drug-discovery-and-therapeutic-options
#7
Thanigaimalai Pillaiyar, Manoj Manickam, Sang-Hun Jung
Melanin, primarily responsible in humans for hair, eye and skin pigmentation, is produced by melanocytes through a process called melanogenesis. However, the abnormal accumulation of melanin causes dermatological problems such as café-au-lait macules ephelides (freckles), solar lentigo (age spots) and melasma, as well as cancer and vitiligo. Hence the regulation of melanogenesis is very important for treating hyperpigmentary disorders. Numerous antimelanogenic agents that target tyrosinase activity and/or stability, melanosome maturation, transfer and trafficking, or melanogenesis-related signaling pathways have been developed...
September 28, 2016: Drug Discovery Today
https://www.readbyqxmd.com/read/27689982/constituents-of-cryptotaenia-japonica-inhibit-melanogenesis-via-creb-and-mapk-associated-signaling-pathways-in-murine-b16-melanoma-cells
#8
Zuh-Kyung Seong, Sung-Yoon Lee, Amrit Poudel, Sei-Ryang Oh, Hyeong-Kyu Lee
Melanin plays an important role in protecting the skin against ultraviolet light and is responsible for skin color. However, overproduction of melanin is related to several skin disorders, such as age spots, freckles, café au lait spots, Becker's nevus and other hyperpigmentation syndromes. The aim of this study was to identify the effects of kaempferol-7-O-β-d-glucuronide (K7G) and tilianin, isolated from Cryptotaenia japonica, on melanogenesis and their mechanisms of action in murine B16 melanoma cells...
2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27672547/coffin-siris-syndrome-with-caf%C3%A3-au-lait-spots-obesity-and-hyperinsulinism-caused-by-a-mutation-in-the-arid1b-gene
#9
Fatma Mujgan Sonmez, Eyyup Uctepe, Mehmet Gunduz, Zeliha Gormez, Seval Erpolat, Murat Oznur, Mahmut Samil Sagiroglu, Huseyin Demirci, Esra Gunduz
Coffin-Siris syndrome (CSS) (MIM 135900) is characterized by developmental delay, severe speech impairment, distinctive facial features, hypertrichosis, aplasia or hypoplasia of the distal phalanx or nail of the fifth digit and agenesis of the corpus callosum. Recently, it was shown that mutations in the ARID1B gene are the main cause of CSS, accounting for 76% of identified mutations. Here, we report a 15 year-old female patient who was admitted to our clinic with seizures, speech problems, dysmorphic features, bilaterally big, large thumb, café-au-lait (CAL) spots, obesity and hyperinsulinism...
August 2016: Intractable & Rare Diseases Research
https://www.readbyqxmd.com/read/27659786/lentiginous-phenotypes-caused-by-diverse-pathogenic-genes-sash1-and-ptpn11-clinical-and-molecular-discrimination
#10
J Zhang, R Cheng, J Liang, C Ni, M Li, Z Yao
Pathogenic mutations in genes (SASH1 and PTPN11) can cause a rare genetic disorder associated with pigmentation defects and the well-known LEOPARD syndrome, respectively. Both conditions presented with lentiginous phenotypes. The aim of this study was to arrive at definite diagnoses of three Chinese boys with clinically suspected lentigines-related syndromes. ADAR1, ABCB6, SASH1 and PTPN11 were candidate genes for mutational screening. Sanger sequencing was performed to identify the mutations, whereas bioinformatic analysis was used to predict the pathogenicity of novel missense mutations...
October 2016: Clinical Genetics
https://www.readbyqxmd.com/read/27622733/neurofibromatosis-type-1-nf1-gene-beyond-caf%C3%A3-au-lait-spots-and-dermal-neurofibromas
#11
Sirkku Peltonen, Roope A Kallionpää, Juha Peltonen
Neurofibromatosis 1 (NF1) occurs in 1:2000 births. The main diagnostic signs are visible on the skin and this opens several interesting aspects for dermatological point of view. The NF1 syndrome is caused by mutations in the NF1 gene which encodes the tumor suppressor protein neurofibromin. Neurofibromin functions as a Ras-GTPase activating protein (RasGAP), and NF1 mutations lead to over-activation of the Ras signaling pathway. The NF1 gene and neurofibromin have intriguing functions in keratinocytes and melanocytes...
September 13, 2016: Experimental Dermatology
https://www.readbyqxmd.com/read/27597922/coexistence-of-ankylosing-spondylitis-and-neurofibromatosis-type-1
#12
Baris Gundogdu, Servet Yolbas, Ahmet Yildirim, Murat Gonen, Suleyman Serdar Koca
Ankylosing spondylitis (AS) is a systemic disease primarily characterized by the inflammation of sacroiliac joints and axial skeleton. Neurofibromatosis type 1 (NF1) is a multisystem genetic disease which is characterized by cutaneous findings, most importantly café-au-lait spots and axillary freckling, by skeletal dysplasia, and by the growth of both benign and malignant nervous system neoplasms, most notably benign neurofibromas. In this case report, we present a 43-year-old male with AS and NF1.
2016: Case Reports in Rheumatology
https://www.readbyqxmd.com/read/27571787/skin-manifestations-of-growth-hormone-induced-diseases
#13
Christina Kanaka-Gantenbein, Christina Kogia, Mohamed Badawy Abdel-Naser, George P Chrousos
The human skin is a well-organized organ bearing different types of cells in a well-structured interference to each other including epidermal and follicular keratinocytes, sebocytes, melanocytes, dermal papilla cells and fibroblasts, endothelial cells, sweat gland cells as well as nerves. Several hormones act on different cell types of the skin, while it is also considered an endocrine organ secreting hormones that act at several sites of the organism. GH receptors are found in almost all cell types forming the skin, while IGF-1 receptors' expression is restricted to the epidermal keratinocytes...
August 30, 2016: Reviews in Endocrine & Metabolic Disorders
https://www.readbyqxmd.com/read/27519263/development-of-mediastinal-lymphoma-after-radiotherapy-for-concurrent-medulloblastoma-and-pnet-in-a-patient-with-gorlin-syndrome
#14
Tao Jiang, Junmei Wang, Ying Wang, Chunde Li
BACKGROUND: Very young children with Gorlin syndrome are at risk for developing medulloblastoma. Patients with Gorlin syndrome may have multiple system abnormalities, including basal cell carcinomas, jaw cysts, desmoplastic medulloblastoma, palmar/plantar pits, rib abnormalities, and intracranial falx calcification. The early diagnosis of Gorlin syndrome in desmoplastic medulloblastoma patients is very important because these patients should receive chemotherapy as a first-line treatment and should avoid radiotherapy as much as possible...
August 12, 2016: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27506760/clinical-and-endocrine-characteristics-and-genetic-analysis-of-korean-children-with-mccune-albright-syndrome-a-retrospective-cohort-study
#15
Eun-Kyung Cho, Jinsup Kim, Aram Yang, Chang-Seok Ki, Ji-Eun Lee, Sung Yoon Cho, Dong-Kyu Jin
BACKGROUND: McCune-Albright syndrome (MAS) is a rare disease defined by the triad of fibrous dysplasia (FD), café au lait spots, and peripheral precocious puberty (PP). Because of the rarity of this disease, only a few individuals with MAS have been reported in Korea. We describe the various clinical and endocrine manifestations and genetic analysis of 14 patients with MAS in Korea. METHODS: Patients' clinical data-including peripheral PP, FD, and other endocrine problems-were reviewed retrospectively...
2016: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/27502880/lower-limbs-deformities-in-patients-with-mccune-albright-syndrome-tomography-and-treatment
#16
Ali Al Kaissi, Vladimir Kenis, Farid Ben Chehida, Jochen Hofstaetter, Franz Grill, Rudolf Ganger
BACKGROUND: The skeletal changes in McCune-Albright disease are usually severe because of the polyostotic form of the disease. Trendelenberg gait and limited mobility are the most common presenting features. The constellation of Café-au lait spots and polyostotic bone involvement is commonly referred to as McCune-Albright's syndrome (MAS). MATERIALS AND METHODS: One boy and 4 girls (7-16 years) were sought in our departments from 1998 to 2012. Limb length discrepancy was the main clinical presentation...
July 2016: African Journal of Paediatric Surgery: AJPS
https://www.readbyqxmd.com/read/27478774/a-case-of-primary-hypogonadism-with-features-of-albright-s-syndrome
#17
Moushumi Lodh, Rajarshi Mukhopadhyay
BACKGROUND: McCune Albright syndrome is rare with an estimated prevalence of 1 in 100,000 to 1 in 1,000,000 persons. The classical clinical triad consists of fibrous dysplasia of the bone, café-au-lait skin spots and precocious puberty. However, in rare cases, there may be primary hypogonadism and amenorrhea. CASE PRESENTATION: An eighteen-year-old female presented with amenorrhea. She had a short stature, round face, thick neck, and short fourth metacarpals and metatarsals...
July 2016: Journal of Reproduction & Infertility
https://www.readbyqxmd.com/read/27471818/is-it-confirmed-the-presence-of-neurological-soft-signs-in-children-with-neurofibromatosis-type-1
#18
Cinzia Galasso, Livia Casarelli, Nadia El Malhany, Maria B Pitzianti, Simonetta Spiridigliozzi, Paolo Curatolo, Augusto Pasini
BACKGROUND: Neurofibromatosis type 1 is a common neurogenetic disorder affecting nervous system, caused by germiline mutations of the NF1 gene. Although the clinical diagnosis of NF1 is defined by presence of cafe-au-laits spots, freckling and benign tumours (neurofibromatosis), neurocognitive impairment and neuropsychiatric disorders are reported in comorbidity. Children with NF1 show higher incidence of executive deficits, such attention, response inhibition, executive planning and problem solving, working memory, and learning impairment...
July 8, 2016: Minerva Pediatrica
https://www.readbyqxmd.com/read/27469520/multiple-caf%C3%A3-au-lait-spots-in-a-group-of-fair-skinned-children-without-signs-or-symptoms-of-neurofibromatosis-type-1
#19
Jessica St John, Heather Summe, Courtney Csikesz, Karen Wiss, Beverly Hay, Leah Belazarian
BACKGROUND: The presence of six or more café au lait (CAL) spots is a criterion for the diagnosis of neurofibromatosis type 1 (NF-1). Children with multiple CAL spots are often referred to dermatologists for NF-1 screening. The objective of this case series is to characterize a subset of fair-complected children with red or blond hair and multiple feathery CAL spots who did not meet the criteria for NF-1 at the time of their last evaluation. METHODS: We conducted a chart review of eight patients seen in our pediatric dermatology clinic who were previously identified as having multiple CAL spots and no other signs or symptoms of NF-1...
September 2016: Pediatric Dermatology
https://www.readbyqxmd.com/read/27468965/silver-russell-syndrome-in-hong-kong
#20
H M Luk, K S Yeung, W L Wong, B Hy Chung, T Mf Tong, I Fm Lo
OBJECTIVES: To examine the molecular pathogenetic mechanisms, (epi)genotype-phenotype correlation, and the performance of the three clinical scoring systems-namely Netchine et al, Bartholdi et al, and Birmingham scores-for patients with Silver-Russell syndrome in Hong Kong. METHODS: This retrospective case series was conducted at two tertiary genetic clinics, the Clinical Genetic Service, Department of Health, and clinical genetic clinic in Queen Mary Hospital in Hong Kong...
December 2016: Hong Kong Medical Journal, Xianggang Yi Xue za Zhi
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