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https://www.readbyqxmd.com/read/28077045/association-of-time-to-antibiotics-and-clinical-outcomes-in-adult-hematologic-malignancy-patients-with-febrile-neutropenia
#1
Allison R Butts, Christina Carracedo Bachmeier, Emily V Dressler, Meng Liu, Ann Cowden, Jeff Talbert, Val R Adams
Objective The objective of this study was to determine the clinical impact of time to antibiotic administration in adult inpatients who have hematologic malignancies and develop febrile neutropenia. Methods A retrospective chart review was conducted to screen for all febrile neutropenia events amongst adult hematologic malignancy patients between 1 January 2010 and 1 September 2014. All included patients were admitted to the hospital at the time of fever onset, having been admitted for a diagnosis other than febrile neutropenia...
January 1, 2017: Journal of Oncology Pharmacy Practice
https://www.readbyqxmd.com/read/28074344/multiple-oral-mucosal-hamartomas-in-a-34-year-old-female
#2
Jeffrey A Elo, Ho-Hyun Sun, Joel M Laudenbach, Hardev M Singh
A case of Cowden syndrome (CS) is described in a 34-year-old African American female who reported a history of breast and thyroid malignancies. Clinical examination demonstrated multiple soft, white-pink papules across multiple mucosal surfaces of the oral cavity. Microscopy of the lesions revealed hyperkeratotic surface squamous epithelium with papillomatosis and acanthosis along with elongated rete processes. A genomic polymerase chain reaction direct sequencing using the patient's blood was positive for mutations of the PTEN gene typical of CS...
January 10, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28013114/diffuse-esophageal-glycogenic-acanthosis-and-colon-polyposis-in-a-patient-with-cowden-syndrome
#3
Rohan M Modi, Christina A Arnold, Peter P Stanich
No abstract text is available yet for this article.
December 21, 2016: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28011713/germline-compound-heterozygous-poly-glutamine-deletion-in-usf3-may-be-involved-in-predisposition-to-heritable-and-sporadic-epithelial-thyroid-carcinoma
#4
Ying Ni, Spencer Seballos, Benjamin Fletcher, Todd Romigh, Lamis Yehia, Jessica Mester, Leigha Senter, Farshad Niazi, Motoyasu Saji, Matthew D Ringel, Thomas LaFramboise, Charis Eng
Cowden syndrome (CS) is an autosomal dominant disorder that predisposes to breast, thyroid, and other epithelial cancers. Differentiated thyroid carcinoma (DTC), as one of the major component cancers of CS, is the fastest rising incident cancer in the USA, and the most familial of all solid tumors. To identify additional candidate genes of CS and potentially DTC, we analyzed a multi-generation CS-like family with papillary thyroid cancer (PTC), applying a combined linkage-based and whole-genome sequencing strategy and identified an in-frame germline compound heterozygous deletion, p...
December 22, 2016: Human Molecular Genetics
https://www.readbyqxmd.com/read/27990388/mucocutaneous-manifestations-of-cowden-s-syndrome
#5
Kundoor Vinay Kumar Reddy, Amarthuluri Anusha, Kotya Naik Maloth, Kesidi Sunitha, Moni Thakur
Cowden's syndrome is an autosomal dominant genodermatosis with variable orofacial and systemic manifestations. Here we present one such classical case of Cowden's syndrome in a 45-year-old female patient with features such as multiple cutaneous papillomatosis, oral fibromas, and fibromas involving multiple organs such as gastrointestinal tract (multiple polyps), thyroid disorders, and breast cancer.
November 2016: Indian Dermatology Online Journal
https://www.readbyqxmd.com/read/27943006/hereditary-syndromes-predisposing-to-endocrine-tumors-and-their-skin-manifestations
#6
REVIEW
Constantine A Stratakis
We often think of the lentiginoses, phacomatoses and other neurocutaneous syndromes as conditions that affect the skin and also predispose to a variety of tumors. However, we rarely think of Peutz-Jeghers syndrome (PJS), Carney complex (CNC), Cowden disease (CD), neurofibromatosis type-1 (NF-1) or tuberous sclerosis (TSC) as conditions that are multiple endocrine neoplasias (MEN). Indeed, all of these conditions predispose to a variety of endocrine tumors, in addition to many other neoplasms. On the other hand, the classic MENs, type 1 and 2 (MEN-1 and MEN-2, respectively) are almost never thought in terms of their skin manifestations...
September 2016: Reviews in Endocrine & Metabolic Disorders
https://www.readbyqxmd.com/read/27942419/immune-suppression-mediated-by-myeloid-and-lymphoid-derived-immune-cells-in-the-tumor-microenvironment-facilitates-progression-of-thyroid-cancers-driven-by-hras-g12v-and-pten-loss
#7
Lee Ann Jolly, Nicole Massoll, Aime T Franco
Thyroid cancer is the most common endocrine malignancy and is predicted to be the 4(th) most commonly diagnosed cancer by 2030. Approximately one-half of follicular thyroid carcinomas (FTC) contain genetic alterations in RAS family members. Furthermore, Cowden's disease, which is characterized by loss of PTEN, predisposes for the development of FTC in humans. We have shown that thyroid specific expression of Hras(G12V) at endogenous levels and Pten inactivation (Hras(G12V)/Pten(-/-)/TPO-cre mice) leads to the development of FTCs that closely recapitulate human disease, with complete penetrance at one year...
October 2016: Journal of Clinical & Cellular Immunology
https://www.readbyqxmd.com/read/27941559/expression-of-cas-cse1l-the-cellular-apoptosis-susceptibility-protein-correlates-with-neoplastic-progression-in-barrett-s-esophagus
#8
Kun Jiang, Kevin Neill, Daniel Cowden, Jason Klapman, Steven Eschrich, José Pimiento, Mokenge P Malafa, Domenico Coppola
BACKGROUND: Identifying the molecular switch responsible for the neoplastic progression of Barrett's esophagus (BE) and initiation of adenocarcinoma (ADC) is clinically essential and it will have a profound impact on patient diagnosis, prognosis, and treatment. The cellular apoptosis susceptibility gene CAS/CSE1L is overexpressed in various cancers, including a rare report on esophageal ADC; however, its expression in BE neoplasia has not been addressed. MATERIALS AND METHODS: We investigated the expression of the CAS/CSE1L protein immunohistochemically in 56 esophageal resection specimens for ADC arising in BE...
December 9, 2016: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/27941184/should-we-be-more-aware-of-endometrial-cancer-in-adolescents
#9
Krzysztof Gałczyński, Łukasz Nowakowski, Tomasz Rechberger, Andrzej Semczuk
Although endometrial cancer is generally diagnosed in women after menopause, it may incidentally develop in young women or even in adolescents. Diagnostic tools should be applied in young teenage girls complaining of abnormal genital bleeding, particularly those with hereditary cancer syndromes (such as Cowden or Lynch syndromes). Adolescents affected by polycystic ovary syndrome and obesity may also be at increased risk for the development of atypical endometrial hyperplasia and endometrial cancer, and should be carefully managed when the distressing symptoms occur...
2016: Developmental Period Medicine
https://www.readbyqxmd.com/read/27911673/genetic-syndromes-associated-with-central-nervous-system-tumors
#10
Charmi Vijapura, Ehab Saad Aldin, Aristides A Capizzano, Bruno Policeni, Yutaka Sato, Toshio Moritani
Several genetic tumor syndromes have associated central nervous system (CNS) neoplasms. The spectrum of syndromes that have intracranial tumor manifestations includes ataxia telangiectasia, Cowden syndrome, familial adenomatous polyposis, hereditary non-polyposis-related colorectal cancer, Li-Fraumeni syndrome, Gorlin syndrome, neurofibromatosis types 1 and 2, multiple endocrine neoplasia type 1, tuberous sclerosis complex, von Hippel-Lindau disease, and Turcot syndrome. Many of these disorders are inherited in an autosomal dominant fashion, and identification of the associated genetic defects has led to improved understanding of the molecular pathways involved in tumorigenesis, helping pave the way to the emergence of molecularly targeted therapeutics...
January 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/27901016/relationships-between-arsenic-concentrations-in-drinking-water-and-lung-and-bladder-cancer-incidence-in-u-s-counties
#11
William M Mendez, Sorina Eftim, Jonathan Cohen, Isaac Warren, John Cowden, Janice S Lee, Reeder Sams
Increased risks of lung and bladder cancer have been observed in populations exposed to high levels of inorganic arsenic. However, studies at lower exposures (i.e., less than 100 μg/l in water) have shown inconsistent results. We therefore conducted an ecological analysis of the association between historical drinking water arsenic concentrations and lung and bladder cancer incidence in U.S. counties. We used drinking water arsenic concentrations measured by the U.S. Geological Survey and state agencies in the 1980s and 1990s as proxies for historical exposures in counties where public groundwater systems and private wells are important sources of drinking water...
November 30, 2016: Journal of Exposure Science & Environmental Epidemiology
https://www.readbyqxmd.com/read/27900366/exome-sequencing-reveals-germline-gain-of-function-egfr-mutation-in-an-adult-with-lhermitte-duclos-disease
#12
Samantha Colby, Lamis Yehia, Farshad Niazi, JinLian Chen, Ying Ni, Jessica L Mester, Charis Eng
Lhermitte-Duclos disease (LDD) is a rare cerebellar disorder believed to be pathognomonic for Cowden syndrome. Presently, the only known etiology is germline PTEN mutation. We report a 41-yr-old white female diagnosed with LDD and wild-type for PTEN. Exome sequencing revealed a germline heterozygous EGFR mutation that breaks a disulfide bond in the receptor's extracellular domain, resulting in constitutive activation. Functional studies demonstrate activation of ERK/AKT signaling pathways, mimicking PTEN loss-of-function downstream effects...
November 2016: Cold Spring Harbor Molecular Case Studies
https://www.readbyqxmd.com/read/27889943/a-clinicopathological-study-of-the-oral-lesions-of-cowden-disease
#13
Mariana Hammerschmidt, Silvia Vanessa Lourenço, Marcello Menta Simonsen Nico
BACKGROUND: Cowden disease is a multisystemic cancer predisposition disorder, inherited in an autosomal dominant pattern. Cutaneous and visceral lesions are either malignant tumours or are believed to represent hamartomatous growths. Mucocutaneous lesions are present on almost 100% of affected individuals. Nonetheless, some authors consider that the mucocutaneous manifestations of Cowden disease are, in reality, viral warts at distinct steps of evolution. There are only a few studies regarding the oral manifestations of Cowden disease...
November 7, 2016: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/27886412/cowden-syndrome-serendipitous-diagnosis-in-patients-with-significant-breast-disease-case-series-and-literature-review
#14
Roisin M Heaney, Michael Farrell, Maurice Stokes, Tom Gorey, Dylan Murray
Cowden syndrome (CS) is a multi-system disease that carries an increased lifetime risk of developing certain cancers as well as benign neoplasms. The presence of features of CS in the general unaffected population results in difficulties in the recognition and diagnosis of this condition. Early diagnosis is essential to prevent the development of malignant neoplasms, yet despite the introduction of diagnostic criteria and risk calculators, accurate diagnosis remains a challenge. We identified three patients who presented to the symptomatic breast unit of a University Teaching Hospital over a period of 12 weeks who subsequently were diagnosed with CS...
November 25, 2016: Breast Journal
https://www.readbyqxmd.com/read/27881647/activation-of-cox-2-pge2-promotes-sapovirus-replication-via-the-inhibition-of-nitric-oxide-production
#15
Mia Madel Alfajaro, Jong-Soon Choi, Deok-Song Kim, Ja-Young Seo, Ji-Yun Kim, Jun-Gyu Park, Mahmoud Soliman, Yeong-Bin Baek, Eun-Hyo Cho, Joseph Kwon, Hyung-Jun Kwon, Su-Jin Park, Woo Song Lee, Mun-Il Kang, Myra Hosmillo, Ian Goodfellow, Kyoung-Oh Cho
: Enteric caliciviruses in the genera Norovirus and Sapovirus are important pathogens that cause severe acute gastroenteritis in both humans and animals. Cyclooxygenases (COXs) and their final product, prostaglandin E2 (PGE2), are known to play important roles in the modulation of both the host response to infection and the replicative cycles of several viruses. However, the precise mechanism(s) by which the COX/PGE2 pathway regulates sapovirus replication remains largely unknown. In this study, infection with porcine sapovirus (PSaV) strain Cowden, the only cultivable virus within the genus Sapovirus, markedly increased COX-2 mRNA and protein levels at 24 and 36 h postinfection (hpi), with only a transient increase in COX-1 levels seen at 24 hpi...
February 1, 2017: Journal of Virology
https://www.readbyqxmd.com/read/27862891/effects-of-foliar-and-systemic-insecticides-on-whitefly-transmission-and-incidence-of-cucurbit-yellow-stunting-disorder-virus
#16
S J Castle, John Palumbo, Paul Merten, Charles Cowden, Nilima Prabhaker
BACKGROUND: Cucurbit yellow stunting disorder virus (CYSDV) is a cosmopolitan viral disease transmitted by Bemisia tabaci that infects cucurbit crops. Cantaloupe production in the southwestern U.S. has been confronted by epidemics of CYSDV since 2006 when it was first identified in Arizona and California. As a phloem-limited virus that is vectored in a semi-persistent manner by B. tabaci, CYSDV has transmission characteristics that may be suppressed by select insecticide applications...
November 11, 2016: Pest Management Science
https://www.readbyqxmd.com/read/27807061/familial-non-medullary-thyroid-cancer-unraveling-the-genetic-maze
#17
REVIEW
Samantha Peiling Yang, Joanne Ngeow
Familial non-medullary thyroid cancer (FNMTC) constitutes 3-9% of all thyroid cancers. Out of all FNMTC cases, only 5% in the syndromic form has well-studied driver germline mutations. These associated syndromes include Cowden syndrome, familial adenomatous polyposis, Gardner syndrome, Carney complex type 1, Werner syndrome and DICER1 syndrome. It is important for the clinician to recognize these phenotypes so that genetic counseling and testing can be initiated to enable surveillance for associated malignancies and genetic testing of family members...
December 2016: Endocrine-related Cancer
https://www.readbyqxmd.com/read/27703620/multidisciplinary-surgical-management-of-cowden-syndrome-report-of-a-case
#18
Romeo Patini, Edoardo Staderini, Patrizia Gallenzi
Cowden's Syndrome (CS) is a rare congenital autosomal dominant disorder that affects around 1/200000 patients with an incomplete penetrance and variable expressivity, characterized by alterations in a tumor suppressor gene. A 14-year-old Caucasian male patient came to the attention of the authors complaining of palm nodules, gingival bleeding and painful pedunculated lesions on the lips and on the labial side of anterior sextants. After genetic investigation the final diagnosis of a Cowden Syndrome was made...
October 2016: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/27683091/linear-trichilemmomas-on-the-ankle-of-a-28-year-old-female
#19
Jessica L Gonzalez, Natalia Plotnikova, Andrew Seymour, Ciaran M Mannion, Richard Danialan, David Rosmarin
Trichilemmomas are benign cutaneous proliferations derived from the outer root sheath of the hair follicle. They most often occur on the head and neck region and show a female predominance. When multiple, they are associated with Cowden syndrome (CS), a rare disorder due to an autosomal dominant germline mutation in PTEN (phosphatase and tensin homolog on chromosome 10), a tumor suppressor gene. Trichilemmomas outside of the head and neck region are rare, and as such, the association with CS is not clear. A 28-year-old healthy female with no significant family history of cancer presented to her dermatologist with multiple erythematous papules on the left anterior ankle, starting at birth...
January 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/27682856/multiple-clear-cell-acanthomas-and-a-sebaceous-lymphadenoma-presenting-in-a-patient-with-cowden-syndrome%C3%A2-%C3%A2-a-case-report
#20
Silvia Potenziani, Danielle Applebaum, Bhuvaneswari Krishnan, Carolina Gutiérrez, A Hafeez Diwan
Cowden syndrome (CS) is an uncommon autosomal dominant multiorgan/system genodermatosis. It is characterized by the development of multiple hamartomas of endodermal, mesodermal and ectodermal origin, an increased lifetime risk of breast, thyroid, endometrial and other cancers and an identifiable germline mutation. Mucocutaneous hamartomas are the most common lesions seen and mainly include facial trichilemmomas, oral mucosal papillomas and benign acral keratoses. Herein, we report a case of a 63-year-old Caucasian male with a long-established diagnosis of CS and history of thyroid cancer, colonic polyps, and innumerable trichilemmomas, seborrheic keratoses, squamous papillomas and non-melanoma skin cancers excised in the past...
January 2017: Journal of Cutaneous Pathology
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