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https://www.readbyqxmd.com/read/28749281/neoplasia-in-snakes-at-zoo-atlanta-during-1992-2012
#1
Annie Page-Karjian, Megan Hahne, Kate Leach, Hayley Murphy, Brad Lock, Samuel Rivera
A retrospective study was conducted to review neoplasia of captive snakes in the Zoo Atlanta collection from 1992 to 2012. Of 255 snakes that underwent necropsy and histopathologic examination at Zoo Atlanta during the study period, 37 were observed with neoplasia at necropsy. In those 37 snakes, 42 neoplastic lesions of 18 primary cell types were diagnosed. Thirty-five of those neoplasms (83.3%) were malignant, and of those, 19 were of mesenchymal origin, whereas 14 were of epithelial origin. The median annual rate of neoplasia at necropsy was 12...
June 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28749271/evaluation-of-husbandry-and-mortality-in-lesser-hedgehog-tenrecs-echinops-telfairi
#2
Tara M Harrison, Scott H Harrison
Causes of morbidity and mortality for various species of tenrecs have not been widely published, aside from several reports of neoplasia, and these data are crucial for advancing objectives for preventive medicine, diagnosis, and treatment. A survey on husbandry, morbidity, and mortality of lesser hedgehog tenrecs ( Echinops telfairi ) in Association of Zoos and Aquariums (AZA) institutions was conducted. Out of 32 institutions, 20 responded with data for 98 living and 93 dead animals. The most common causes of mortality among the dead animals were neoplasia (24%), hepatic lipidosis (11%), septicemia (8...
June 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28748969/discovering-intratumor-heterogeneity-the-next-frontier-for-pathologists
#3
J I López, G De Petris
Discovering intratumor heterogeneity is a crucial issue in modern oncologic medicine. Highly sophisticated technology such as high-throughput DNA sequencing has demonstrated the real dimension of the problem. The overwhelming majority of malignant tumors show high levels of intratumor heterogeneity when thoroughly studied. Intratumor heterogeneity develops both in temporal and spatial domains and its distribution is not deterministic making each case truly unique and unrepeatable. Pathologists are main actors in intratumor heterogeneity detection since they are the medical specialists who sample the tumors...
June 2017: Pathologica
https://www.readbyqxmd.com/read/28748780/mir-133a-3p-targets-sumo-specific-protease-1-to-inhibit-cell-proliferation-and-cell-cycle-progress-in-colorectal-cancer
#4
Guo-Qiang Zhou, Fu Han, Zhi-Liang Shi, Liang Yu, Xue-Feng Li, Cheng Yu, Cheng-Long Shen, Dai-Wei Wan, Xin-Quo Zhu, Rui Li, Song-Bing He
Dysregulation of SUMO-specific protease 1(SENP1) expression has been reported in several kinds of cancer, including human colorectal and prostate cancers, proposing SENP1 as a oncogene with a critical role in cancer progression. MiR-133a-3p has been reported as a tumor suppressor in several malignant neoplasias. However, the precise molecular mechanisms underlying its role in colorectal cancer remain largely unknown. The aim of this work is to investigate the relationship between miR-133a-3p and SENP1 in colorectal cancer cells...
July 26, 2017: Oncology Research
https://www.readbyqxmd.com/read/28747659/porcine-familial-adenomatous-polyposis-model-enables-systematic-analysis-of-early-events-in-adenoma-progression
#5
Tatiana Flisikowska, Monika Stachowiak, Hongen Xu, Alexandra Wagner, Alejandra Hernandez-Caceres, Christine Wurmser, Carolin Perleberg, Hubert Pausch, Anna Perkowska, Konrad Fischer, Dmitrij Frishman, Ruedi Fries, Marek Switonski, Alexander Kind, Dieter Saur, Angelika Schnieke, Krzysztof Flisikowski
We compared gene expression in low and high-grade intraepithelial dysplastic polyps from pigs carrying an APC (1311) truncating mutation orthologous to human APC (1309) , analysing whole samples and microdissected dysplastic epithelium. Gene set enrichment analysis revealed differential expression of gene sets similar to human normal mucosa versus T1 stage polyps. Transcriptome analysis of whole samples revealed many differentially-expressed genes reflecting immune infiltration. Analysis of microdissected dysplastic epithelium was markedly different and showed increased expression in high-grade intraepithelial neoplasia of several genes known to be involved in human CRC; and revealed possible new roles for GBP6 and PLXND1...
July 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28747096/preliminary-description-of-aging-cats-and-dogs-presented-to-a-new-zealand-first-opinion-veterinary-clinic-at-end-of-life
#6
M C Gates, H J Hinds, A Dale
AIMS: To conduct a preliminary investigation into the chronic disease conditions and clinical signs present in aging New Zealand companion animals at end-of-life and to describe the timing, circumstances, and manner of death. METHODS: The medical records database of a first opinion, companion animal, veterinary practice in Auckland, New Zealand was searched to identify all canine and feline patients ≥7 years of age that were subjected to euthanasia and/or cremated in the period between July 2012-June 2014...
July 26, 2017: New Zealand Veterinary Journal
https://www.readbyqxmd.com/read/28747092/clinical-features-of-a-family-with-multiple-endocrine-neoplasia-type-2a-caused-by-the-d631y-mutation
#7
Naykky M Singh Ospina, Spyridoula Maraka, Diane Donegan, John C Morris
We describe a family with multiple endocrine neoplasia type 2A (MEN2A) caused by the D631Y RET mutation resulting in an atypical phenotype. The index case was a 24-year-old man, with history of recurrent anaplastic ependymoma incidentally found to have the D631Y RET mutation. At first assessment, 4 family-members had evidence of large pheochromocytoma (PHEO). One patient was found to have micro-medullary thyroid cancer (MTC) at age 79. None of the patients had primary hyperparathyroidism. Patients with MEN2A caused by a D631Y RET mutation most commonly present with PHEO...
July 26, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28745794/expression-of-mir-210-in-senile-copd-complicating-primary-lung-cancer
#8
X-X Li, Y Liu, H-H Meng, X-W Wang
OBJECTIVE: To analyze the expression and clinical significance of miR-210 in patients with senile chronic obstructive pulmonary disease (COPD) complicating primary lung cancer. 30 cases of COPD PATIENTS AND METHODS: 30 cases of primary lung cancer and 30 cases of COPD complicating lung cancer were selected. MiR-210 can function as the cancer suppressor gene in progress from COPD to primary lung cancer and may be used as an important auxiliary diagnosis index. Analysis of correlations between MiR-210 expression with clinical features such as age, sex, disease type, COPD disease classification, pathological pattern of neoplasia and TNM staging...
July 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28742792/evidence-for-genetic-association-between-chromosome-1q-loci-and-predisposition-to-colorectal-neoplasia
#9
Stephanie A Schubert, Dina Ruano, Fadwa A Elsayed, Arnoud Boot, Stijn Crobach, Arantza Farina Sarasqueta, Bruce Wolffenbuttel, Melanie M van der Klauw, Jan Oosting, Carli M Tops, Ronald van Eijk, Hans Fa Vasen, Rolf Ham Vossen, Maartje Nielsen, Sergi Castellví-Bel, Clara Ruiz-Ponte, Ian Tomlinson, Malcolm G Dunlop, Pavel Vodicka, Juul T Wijnen, Frederik J Hes, Hans Morreau, Noel Fcc de Miranda, Rolf H Sijmons, Tom van Wezel
BACKGROUND: A substantial fraction of familial colorectal cancer (CRC) and polyposis heritability remains unexplained. This study aimed to identify predisposing loci in patients with these disorders. METHODS: Homozygosity mapping was performed using 222 563 SNPs in 302 index patients with various colorectal neoplasms and 3367 controls. Linkage analysis, exome and whole-genome sequencing were performed in a family affected by microsatellite stable CRCs. Candidate variants were genotyped in 10 554 cases and 21 480 controls...
July 25, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28742203/expression-levels-and-roles-of-emc-6-beclin1-and-rab5a-in-the-cervical-cancer
#10
M-X Shen, J-B Ding
OBJECTIVE: This study is to investigate the role of EMC-6 in the pathogenesis of cervical cancer, especially concerning its relationship with autophagy. PATIENTS AND METHODS: Totally 100 invasive cervical cancer, 80 cervical intraepithelial neoplasia (CIN), and 80 normal cervical tissue samples were obtained. Expression levels of EMC-6, Beclin1, and Rab5a in the tissues were detected by immunohistochemistry. RESULTS: Our results showed that positive staining of EMC-6 was mainly located in the nucleus...
July 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28741493/derisking-drug-induced-carcinogenicity-for-novel-therapeutics
#11
REVIEW
Jonathan G Moggs, Timothy MacLachlan, Hans-Joerg Martus, Philip Bentley
Assessing the carcinogenic potential of innovative drugs spanning diverse therapeutic modalities and target biology represents a major challenge during drug development. Novel modalities, such as cell and gene therapies that involve intrinsic genetic modification of the host genome, require distinct approaches for identification of cancer hazard. We emphasize the need for customized weight-of-evidence cancer risk assessments based on mode of action that balance multiple options for preclinical identification of cancer hazard with appropriate labeling of clinical products and risk management plans...
August 2016: Trends in Cancer
https://www.readbyqxmd.com/read/28740840/bicytopenia-and-leukoerythroblastosis-a-rare-initial-presentation-of-signet-ring-cell-gastric-adenocarcinoma
#12
REVIEW
Vilma Takayasu, Edna Harumi Goto, Mayra Zanon Casagrande, Paulo Guilherme de Arruda Miranda, Gabriela Bezerra de Freitas Diniz, Micaela Frasson Monteiro, Aloisio Felipe-Silva
Gastric adenocarcinoma is a common neoplasia and is responsible for up to 30% of the overall deaths due to cancer. Advanced disease is mostly characterized by peritoneum, liver, and lung involvement. The spread of the disease to the bone is rare, and bone marrow dissemination is even rarer. In this setting, leukoerythroblastosis may be the initial manifestation of the disease. The authors report the case of a 64-year-old Caucasian man who sought medical care complaining of back pain, weakness, and weight loss...
April 2017: Autopsy & case reports
https://www.readbyqxmd.com/read/28740836/mycotic-aneurysm-with-aortoduodenal-fistula
#13
REVIEW
Bruno Kusznir Vitturi, Amanda Frias, Raphael Sementilli, Marcelo de Castro Jorge Racy, Roberto Augusto Caffaro, Geanete Pozzan
Firstly described in the 19th century by Sir William Osler, the mycotic aneurysm (MA) is a rare entity characterized by an abnormal arterial dilation, which is potentially fatal, and is associated with the infection of the vascular wall. Elderly patients are mostly involved, especially when risk factors like chronic diseases, immunosuppression, neoplasia, and arterial manipulation are associated. The authors report the case of a young male patient diagnosed with an aortic aneurysm of infectious origin in the presence of repeated negative blood cultures...
April 2017: Autopsy & case reports
https://www.readbyqxmd.com/read/28739291/pancreatic-cancer-screening-still-a-delusion
#14
REVIEW
Pedro Moutinho-Ribeiro, Rosa Coelho, Marc Giovannini, Guilherme Macedo
Pancreatic adenocarcinoma represents the fourth most common cause of cancer mortality and death due to pancreatic cancer (PC) have increased since 2003. Its incidence has also raised about 30% in the past decade and it is expected to become the second cause of cancer mortality by 2020 in the USA. Most PC present with metastatic disease and improvements in treatment outcomes for this group have been disappointing. These observations support the idea that screening to identify patients at an earlier stage might be an important strategy in improving overall PC outcomes...
July 13, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/28739193/intraocular-metastasis-comparison-of-clinical-presentation-with-a-known-and-unknown-primary-tumour
#15
R Ramoa, M A Saornil, C García-Alvarez, P Diezhandino, P Alonso-Martínez, E García-Lagarto, M F Muñoz-Moreno, F Lopez-Lara
OBJECTIVE: The purpose of the present study is to review the frequency of intraocular metastases as first presentation of systemic disease, and to identify clinical and tumour characteristics. METHODS: Retrospective study of consecutive cases diagnosed of intraocular metástasis at a referral intraocular tumours unit between 1993 and 2014. General, epidemiological and ophthalmological characteristics were recorded. RESULTS: A total of 21 patients, with a mean age 62...
July 21, 2017: Archivos de la Sociedad Española de Oftalmología
https://www.readbyqxmd.com/read/28739012/corrigendum-to-synergistic-activity-of-n-hydroxy-7-2-naphthylthio-heptanomide-and-sorafenib-against-cancer-stem-cells-anaplastic-thyroid-cancer-neoplasia-19-2017-145-153
#16
Ki Cheong Park, Seok-Mo Kim, Jeong Yong Jeon, Bup-Woo Kim, Hyeung Kyoo Kim, HoJin Chang, Yong Sang Lee, Soo Young Kim, Seung Hoon Choi, Cheong Soo Park, Hang-Seok Chang
No abstract text is available yet for this article.
August 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28739011/corrigendum-to-physical-and-functional-interactions-between-ell2-and-rb-in-the-suppression-of-prostate-cancer-cell-proliferation-migration-and-invasion-neoplasia-19-2017-207-215
#17
Xiaonan Qiu, Laura E Pascal, Qiong Song, Yachen Zang, Junkui Ai, Katherine J O'Malley, Joel B Nelson, Zhou Wang
No abstract text is available yet for this article.
August 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28738823/metformin-suppresses-cancer-initiation-and-progression-in-genetic-mouse-models-of-pancreatic-cancer
#18
Ke Chen, Weikun Qian, Zhengdong Jiang, Liang Cheng, Jie Li, Liankang Sun, Cancan Zhou, Luping Gao, Meng Lei, Bin Yan, Junyu Cao, Wanxing Duan, Qingyong Ma
BACKGROUND: Pancreatic ductal adenocarcinoma (PDAC) is the fourth leading cause of cancer-associated mortality worldwide with an overall five-year survival rate less than 7%. Accumulating evidence has revealed the cancer preventive and therapeutic effects of metformin, one of the most widely prescribed medications for type 2 diabetes mellitus. However, its role in pancreatic cancer is not fully elucidated. Herein, we aimed to further study the preventive and therapeutic effects of metformin in genetically engineered mouse models of pancreatic cancer...
July 24, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28738588/maldi-matrix-assisted-laser-desorption-ionization-imaging-mass-spectrometry-ims-of-skin-aspects-of-sample-preparation
#19
Cristiana Santos de Macedo, David M Anderson, Kevin L Schey
MALDI (matrix assisted laser desorption ionization) Imaging Mass Spectrometry (IMS) allows molecular analysis of biological materials making possible the identification and localization of molecules in tissues, and has been applied to address many questions on skin pathophysiology, as well as on studies about drug absorption and metabolism. Sample preparation for MALDI IMS is the most important part of the workflow, comprising specimen collection and preservation, tissue embedding, cryosectioning, washing, and matrix application...
November 1, 2017: Talanta
https://www.readbyqxmd.com/read/28738408/cgas-surveillance-of-micronuclei-links-genome-instability-to-innate-immunity
#20
Karen J Mackenzie, Paula Carroll, Carol-Anne Martin, Olga Murina, Adeline Fluteau, Daniel J Simpson, Nelly Olova, Hannah Sutcliffe, Jacqueline K Rainger, Andrea Leitch, Ruby T Osborn, Ann P Wheeler, Marcin Nowotny, Nick Gilbert, Tamir Chandra, Martin A M Reijns, Andrew P Jackson
DNA is strictly compartmentalized within the nucleus to prevent autoimmunity; despite this, cyclic GMP-AMP synthase (cGAS), a cytosolic sensor of double-stranded DNA, is activated in autoinflammatory disorders and by DNA damage. Precisely how cellular DNA gains access to the cytoplasm remains to be determined. Here, we report that cGAS localizes to micronuclei arising from genome instability in a mouse model of monogenic autoinflammation, after exogenous DNA damage and spontaneously in human cancer cells. Such micronuclei occur after mis-segregation of DNA during cell division and consist of chromatin surrounded by its own nuclear membrane...
July 24, 2017: Nature
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