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https://www.readbyqxmd.com/read/28319559/pediatric-solid-tumors-in-africa-different-biology
#1
John K M Nyagetuba, Erik N Hansen
PURPOSE OF REVIEW: To review the recent literature regarding biologic characteristics of pediatric solid tumors in African children. RECENT FINDINGS: Data regarding pediatric solid tumors in Africa, while increasing, remain sparse when considering the ethnic and geographic diversity of the continent. Recent work, especially regarding nephroblastoma in Kenya, has identified some biologic variability among local tribes but also when compared with North American tumors...
March 17, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28205668/-spinal-nephroblastoma-at-an-uncommon-localization-in-a-dog
#2
Norbert Langen, Kerstin von Pückler, Carola Tillmanns, Valérie Bornand, Martin Kramer, Martin J Schmidt
A 7-month-old intact male Otterhound was presented for diagnosis of progressive hindlimb paresis. The neurological examination revealed a severe ambulatory paraparesis localised to the left-sided region of the lower motor neuron (L4-S1). Magnetic resonance imaging was suggestive for an intradural-extramedullary neoplasia at the fifth lumbar vertebra. Surgical exploration demonstrated an intradural-extramedullary mass, which partially invaded the spinal cord. The mass was removed with the exception of the intramedullar part, and the diagnosis of a nephroblastoma was made histopathologically...
February 16, 2017: Tierärztliche Praxis. Ausgabe K, Kleintiere/Heimtiere
https://www.readbyqxmd.com/read/28161399/bard1-gene-polymorphisms-confer-nephroblastoma-susceptibility
#3
Wen Fu, Jinhong Zhu, Si-Wei Xiong, Wei Jia, Zhang Zhao, Shi-Bo Zhu, Jin-Hua Hu, Feng-Hua Wang, Huimin Xia, Jing He, Guo-Chang Liu
BRCA1-associated RING domain protein 1 (BARD1) is a tumor suppressor, which forms a heterodimer with BRCA1. Three BARD1 gene polymorphisms (rs7585356 G>A, rs6435862 T>G and rs3768716 A>G) were initially identified as high-risk neuroblastoma susceptibility loci by a previous GWAS. Because of the general tumor-suppressing function of BARD1, we hypothesized that these BARD1 gene polymorphisms might modify the susceptibility to nephroblastoma. We genotyped these polymorphisms in 145 cases and 531 controls using Taqman methods...
February 2017: EBioMedicine
https://www.readbyqxmd.com/read/28100931/the-value-of-anterior-displacement-of-the-abdominal-aorta-in-diagnosing-neuroblastoma-in-children
#4
Jose Luiz de Oliveira Schiavon, Eliana Maria Monteiro Caran, Vicente Odone Filho, Henrique Manoel Lederman
OBJECTIVE: To determine the value of anterior displacement of the abdominal aorta, when present at any level or only at the level of the adrenal gland, contralateral to the mass, in diagnosing neuroblastoma on computed tomography or magnetic resonance imaging in children up to 7 years of age. MATERIALS AND METHODS: Imaging examinations of 66 patients were classified by consensus as for the presence of anterior aorta displacement and were compared with the pathology report...
November 2016: Radiologia Brasileira
https://www.readbyqxmd.com/read/28042792/-cystic-nephroma-report-of-two-cases-and-bibliographic-review
#5
E Rodríguez-Zarco, S Pabon-Carrasco, C Romero-Abrio, F J Vázquez-Ramírez
OBJECTIVE: Multicystic nephroma (multilocular cystic nephroma, multilocular cyst) is a relatively rare benign neoplasm of the kidney. Most patients are asymptomatic and tumours are usually discovered incidentally. METHODS: Between 2010 and 2015, 2 patients with cystic nephroma at our institution were diagnosed and treated. Our study includes two new cases of cystic nephroma and a review of the literature about the differential diagnosis of a cystic renal mass. RESULTS: In this report we present two cases of multilocular cystic nephroma in a 75-year-old-female and a 33-year-old female...
December 2016: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28002484/renal-fibrosis-mrna-classifier-validation-in-experimental-lithium-induced-interstitial-fibrosis-in-the-rat-kidney
#6
Hans-Peter Marti, Aaron Jeffs, Andreas Scherer, John Leader, Catherine Leader, Jennifer Bedford, Robert Walker
Accurate diagnosis of fibrosis is of paramount clinical importance. A human fibrosis classifier based on metzincins and related genes (MARGS) was described previously. In this investigation, expression changes of MARGS genes were explored and evaluated to examine whether the MARGS-based algorithm has any diagnostic value in a rat model of lithium nephropathy. Male Wistar rats (n = 12) were divided into 2 groups (n = 6). One group was given a diet containing lithium (40 mmol/kg food for 7 days, followed by 60mmol/kg food for the rest of the experimental period), while a control group (n = 6) was fed a normal diet...
2016: PloS One
https://www.readbyqxmd.com/read/27969569/biology-and-treatment-of-renal-tumours-in-childhood
#7
REVIEW
Jesper Brok, Taryn D Treger, Saskia L Gooskens, Marry M van den Heuvel-Eibrink, Kathy Pritchard-Jones
In Europe, almost 1000 children are diagnosed with a malignant renal tumour each year. The vast majority of cases are nephroblastoma, also known as Wilms' tumour (WT). Most children are treated according to Société Internationale d'Oncologie Pédiatrique Renal Tumour Study Group (SIOP-RTSG) protocols with pre-operative chemotherapy, surgery, and post-operative treatment dependent on stage and histology. Overall survival approaches 90%, but a subgroup of WT, with high-risk histology and/or relapsed disease, still have a much poorer prognosis...
October 28, 2016: European Journal of Cancer
https://www.readbyqxmd.com/read/27957372/nephroblastoma-arising-from-primary-testicular-germ-cell-tumor-a-case-report-and-literature-review
#8
Houda Alatassi, Brittany E O'Bryan, Jamie C Messer, Zhenglong Wang
Adult extrarenal nephroblastoma is a very rare tumor. Nephroblastoma arising from primary testicular germ cell tumor is exceedingly rare. To our knowledge, only three cases have been reported in the English literature. We report a case of a 19-year-old man who presented with a large right testicle. Image studies showed a large retroperitoneal mass along with liver and lung metastases. Orchiectomy demonstrated a mixed germ cell tumor composed of yolk sac tumor, embryonal carcinoma, and mature and immature teratoma with a significant portion of nephroblastoma...
2016: Case Reports in Pathology
https://www.readbyqxmd.com/read/27943100/k-ras-h-ras-n-ras-and-b-raf-mutation-and-expression-analysis-in-wilms-tumors-association-with-tumor-growth
#9
Efterpi Dalpa, Victor Gourvas, Nikolaos Soulitzis, Demetrios A Spandidos
Nephroblastoma (Wilms tumor) is a kidney neoplasia, predominately occurring at very young age, resulting from the malignant transformation of renal stem cells. The Ras proto-oncogenes and B-Raf are members of an intracellular cascade pathway, which regulates cell growth and differentiation, and ultimately cancer development. Our objective was to determine the mutation rate and to measure the mRNA levels of the three Ras genes and of B-Raf in formalin-fixed paraffin-embedded tissue samples from 32 patients with nephroblastoma and 10 controls...
January 2017: Medical Oncology
https://www.readbyqxmd.com/read/27895685/pediatric-peri-operative-fractionated-high-dose-rate-brachytherapy-for-recurrent-wilms-tumor-using-a%C3%A2-reconstructed-freiburg-flap
#10
Emily Flower, Kathy Ngoc Tran, Salman Zanjani, Wayne Smith, Jonathan Karpelowsky, Katie Summerhayes, Edgar Estoesta, Jennifer Chard
PURPOSE: To report peri-operative fractionated high-dose-rate (HDR) brachytherapy with a 3D customized Freiburg flap applicator to treat locally recurrent Wilms' tumor, followed by immediate hyperthermic intraperitoneal chemotherapy for a 16-year-old with a second recurrence of nephroblastoma (Wilms' tumor). MATERIAL AND METHODS: The tumor was excised and surgical bed was treated with fractionated HDR brachytherapy using a Freiburg flap applicator. Hyperthermic intraperitoneal chemotherapy was performed immediately after the removal of brachytherapy applicator...
October 2016: Journal of Contemporary Brachytherapy
https://www.readbyqxmd.com/read/27863006/role-of-ccn5-wnt1-inducible-signaling-pathway-protein-2-in-pancreatic-islets
#11
REVIEW
Jun-Li Liu, Nancy Kaddour, Subrata Chowdhury, Qing Li, Zu-Hua Gao
In search of direct targets of insulin-like growth factor (IGF)-1 action, we discovered CCN5 (WNT1 inducible signaling pathway protein 2 [WISP2]) as a novel protein expressed in pancreatic β-cells. As a member of the "CCN" ( C ysteine-rich angiogenic inducer 61 [Cyr61], C onnective tissue growth factor [CTGF in humans], and N ephroblastoma overexpressed [Nov; in chickens]) family, the expression of CCN5/WISP2 is stimulated by IGF-1 together with Wnt signaling. When overexpressed in insulinoma cells, CCN5 promotes cell proliferation and cell survival against streptozotocin-induced cell death...
November 12, 2016: Journal of Diabetes
https://www.readbyqxmd.com/read/27836364/the-association-between-nephroblastoma-specific-outcomes-and-high-versus-low-volume-treatment-centers
#12
COMPARATIVE STUDY
Morgan K Richards, Adam B Goldin, Alexandra Savinkina, John Doski, Melanie Goldfarb, Jed Nuchtern, Monica Langer, Elizabeth A Beierle, Sanjeev Vasudevan, Kenneth W Gow, Mehul V Raval
BACKGROUND: Though the volume-outcome relationship has been well-established in adults, low mortality rates and small sample sizes have precluded definitive demonstration in children. This study compares treatment-specific factors for children with nephroblastoma at high (HVC) versus low volume centers (LVC). METHODS: We performed a retrospective cohort study comparing patients ≤18years with unilateral nephroblastoma treated at HVCs and LVCs using the National Cancer Data Base (1998-2012)...
January 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/27821077/a-case-series-of-intestinal-adenomatous-polyposis-of-unidentified-etiology-a-late-effect-of-irradiation
#13
Lisanne Sara Rigter, Frank G J Kallenberg, Barbara Bastiaansen, Theo A M van Os, Floor E van Leeuwen, Monique Esther van Leerdam, Evelien Dekker
BACKGROUND: In a large number of patients with multiple gastrointestinal adenomatous polyps, no causal germline mutation can be found. Non-genetic factors may contribute to the development of adenomatous polyps in these unexplained polyposis patients. In the development of gastrointestinal cancer, prior exposure to abdominal radiotherapy has been identified as such a factor, as it increases the gastrointestinal cancer risk in cancer survivors. A relationship of radiotherapy with intestinal polyposis, however, has not yet been described...
November 8, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27775293/-thoracoscopic-resection-of-lung-metastases-guided-by-hook-wire
#14
L Rodríguez Caraballo, J Gómez-Chacón Villalban, P Rodríguez Iglesias, L Mangas Álvarez, A Marco Macián
OBJECTIVE: To describe our experience in the use of the guided hook wire placement to undergo thoracoscopic resection of pulmonary metastases in children. MATERIAL AND METHODS: We conducted a retrospective review, between January 2008 and December 2014 of the patients that were diagnosed with pulmonary metastases by image and who underwent a thoracoscopic metastasectomy. Patients in whom a CT- guided hook was done before the surgery were included. RESULTS: Eleven procedures were done in ten patients with a median age of 10 years (range 2-16 years)...
October 10, 2015: Cirugía Pediátrica: Organo Oficial de la Sociedad Española de Cirugía Pediátrica
https://www.readbyqxmd.com/read/27764132/can-we-spare-the-pancreas-and-other-abdominal-organs-at-risk-a-comparison-of-conformal-radiotherapy-helical-tomotherapy-and-proton-beam-therapy-in-pediatric-irradiation
#15
Emmanuel Jouglar, Antoine Wagner, Grégory Delpon, Loïc Campion, Philippe Meingan, Valérie Bernier, Charlotte Demoor-Goldschmidt, Marc-André Mahé, Thomas Lacornerie, Stéphane Supiot
OBJECTIVES: Late abdominal irradiation toxicity during childhood included renal damage, hepatic toxicity and secondary diabetes mellitus. We compared the potential of conformal radiotherapy (CRT), helical tomotherapy (HT) and proton beam therapy (PBT) to spare the abdominal organs at risk (pancreas, kidneys and liver- OAR) in children undergoing abdominal irradiation. METHODS: We selected children with abdominal tumors who received more than 10 Gy to the abdomen...
2016: PloS One
https://www.readbyqxmd.com/read/27732932/the-first-investigation-of-wilms-tumour-atomic-structure-nitrogen-and-carbon-isotopic-composition-as-a-novel-biomarker-for-the-most-individual-approach-in-cancer-disease
#16
Katarzyna Taran, Tomasz FrÄ Czek, Anita Sikora-Szubert, Anna Sitkiewicz, Wojciech Må Ynarski, Józef Kobos, Piotr Paneth
The paper describes a novel approach to investigating Wilms' tumour (nephroblastoma) biology at the atomic level. Isotope Ratio Mass Spectrometry (IRMS) was used to directly assess the isotope ratios of nitrogen and carbon in 84 Wilms' tumour tissue samples from 28 cases representing the histological spectrum of nephroblastoma. Marked differences in nitrogen and carbon isotope ratios were found between nephroblastoma histological types and along the course of cancer disease, with a breakout in isotope ratio of the examined elements in tumour tissue found between stages 2 and 3...
October 8, 2016: Oncotarget
https://www.readbyqxmd.com/read/27729773/andrographolide-promotes-vincristine-induced-sk-nep-1-tumor-cell-death-via-pi3k-akt-p53-signaling-pathway
#17
Mingsheng Zhang, Enda Xue, Wei Shao
BACKGROUND: Nephroblastoma (Wilms' tumor [WT]) is the most common malignant renal cancer in children. Although the outcome of WT has significantly improved as a result of the combination of surgery, chemotherapy, and radiotherapy; in some cases WT results in severe complications. Thus, novel strategies that would decrease treatment burden are required. The aim of the current study was to investigate the synergistic antitumor effect of andrographolide (AND) in combination with vincristine (VCR) on WT cells...
2016: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/27726252/whole-tumor-apparent-diffusion-coefficient-measurements-in-nephroblastoma-can-it-identify-blastemal-predominance
#18
Annemieke S Littooij, Neil J Sebire, Øystein E Olsen
PURPOSE: To explore the potential relation between whole-tumor apparent diffusion coefficient (ADC) parameters in viable parts of tumor and histopathological findings in nephroblastoma. MATERIALS AND METHODS: Children (n = 52) with histopathologically proven nephroblastoma underwent diffusion-weighted magnetic resonance imaging (MRI) (1.5T) before preoperative chemotherapy. Of these, 25 underwent an additional MRI after preoperative chemotherapy, shortly before resection...
October 11, 2016: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/27680030/gonadal-function-in-boys-with-newly-diagnosed-cancer-before-the-start-of-treatment
#19
Kiki M G J Wigny, Wendy van Dorp, Anne-Lotte L F van der Kooi, Yolanda B de Rijke, Andrica C H de Vries, Marij Smit, Saskia M F Pluijm, Erica L T van den Akker, Rob Pieters, Joop S E Laven, Marry M van den Heuvel-Eibrink
STUDY QUESTION: Are Inhibin B and testosterone levels reduced in boys with newly diagnosed cancer prior to therapy? SUMMARY ANSWER: Pretreatment serum levels of Inhibin B and testosterone are significantly reduced in boys with newly diagnosed cancer, compared to reference values. WHAT IS ALREADY KNOWN: Disease-related gonadal impairment has been demonstrated in girls and young women diagnosed with cancer, prior to therapy. STUDY DESIGN, SIZE, DURATION: We conducted a descriptive study in boys newly diagnosed with cancer between January 2006 and February 2014...
November 2016: Human Reproduction
https://www.readbyqxmd.com/read/27633176/differential-expression-of-ccn-family-members-cyr611-ctgf-and-nov-in-gastric-cancer-and-their-association-with-disease-progression
#20
Jun Li, Xiangyu Gao, Ke Ji, Andrew J Sanders, Zhongtao Zhang, Wen G Jiang, Jiafu Ji, Lin Ye
CCN is an acronym for cysteine-rich protein 61 (CYR61), connective tissue growth factor (CTGF) and nephroblastoma overexpressed (NOV). Aberrations of certain CCN members including CYR61, CTGF, Wnt1-inducible signalling pathway protein (WISP)-1 and -3 have been reported in gastric cancer. The present study aimed to examine the clinical relevance of NOV along with CYR61 and CTGF in gastric cancer by analysing their transcript levels. CYR61, CTGF and NOV transcript expression in 324 gastric cancer samples with paired adjacent normal gastric tissues were determined using real-time quantitative PCR and the results were statistically analysed against patient clinicopathological data using SPSS software...
November 2016: Oncology Reports
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