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Family adenomatous polyposis

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https://www.readbyqxmd.com/read/29049337/factors-affecting-pouch-related-outcomes-after-restorative-proctocolectomy
#1
Gyoung Tae Noh, Jeonghee Han, Min Soo Cho, Hyuk Hur, Byung Soh Min, Kang Young Lee, Nam Kyu Kim
PURPOSES: Restorative proctocolectomy (RPC) with ileal pouch anal anastomosis (IPAA) is the procedure of choice for patients with familial adenomatous polyposis (FAP) and ulcerative colitis (UC) despite morbidities that can lead to pouch failure. We aimed to identify factors associated with pouch-related morbidities. METHODS: A retrospective analysis of patients who underwent RPC with IPAA was performed. To investigate the factors associated with pouch-related morbidities, patients' preoperative demographic and clinical factors, and intraoperative factors were included in the analysis...
2017: PloS One
https://www.readbyqxmd.com/read/29021452/a-case-of-familial-adenomatous-polyposis-with-multiple-helicobacter-negative-early-gastric-cancers-treated-by-endoscopic-submucosal-dissection
#2
Katsuki Yaguchi, Makomo Makazu, Kingo Hirasawa, Makoto Sugimori, Ryosuke Kobayashi, Chiko Sato, Ryosuke Ikeda, Takehide Fukuchi, Yasuaki Ishii, Hiroaki Kaneko, Wataru Shibata, Shoji Yamanaka, Yoshiaki Inayama, Shin Maeda
Stomach cancer rarely develops in patients with familial adenomatous polyposis (FAP), and Helicobacter pylori infection may increase the risk of FAP-related gastric cancer. We describe the case of a 64-year-old woman who developed multiple synchronous early gastric cancers without H. pylori infection. Nine cancer lesions were successfully treated by endoscopic submucosal dissection. An immunohistochemical analysis revealed that the tumors were positive for MUC2, MUC6, and CDX2, but negative for MUC5AC, suggesting that the tumors were gastrointestinal mixed type...
October 11, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28991077/surveillance-of-duodenal-polyposis-in-familial-adenomatous-polyposis-should-the-spigelman-score-be-modified
#3
EDITORIAL
Isabelle Sourrouille, Jérémie H Lefèvre, Conor Shields, Chrystelle Colas, Jerôme Bellanger, Benoît Desaint, Francois Paye, Emmanuel Tiret, Yann Parc
BACKGROUND: Duodenal polyposis is a manifestation of adenomatous polyposis that predisposes to duodenal or ampullary adenocarcinoma. Duodenal polyposis is monitored by upper GI endoscopies and may require iterative resections and prophylactic radical surgical treatment when malignancy is threatening. OBJECTIVE: The purpose of this study was to evaluate severity scoring for surveillance and treatment in a large series of duodenal polyposis. DESIGN: From 1982 to 2014, every patient surveyed by upper GI endoscopies for duodenal polyposis was included...
November 2017: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/28991073/spigelman-scoring-system-underestimates-the-risk-of-ampullary-and-duodenal-carcinoma-in-patients-with-familial-adenomatous-polyposis-with-duodenal-polyposis
#4
Joshua Tierney, Gary C Vitale
No abstract text is available yet for this article.
November 2017: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/28991072/surveillance-of-duodenal-polyposis-in-familial-adenomatous-polyposis-should-the-spigelman-score-be-modified
#5
Susan K Clark, Andrew Latchford
No abstract text is available yet for this article.
November 2017: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/28979711/clinical-predictors-for-sessile-serrated-polyposis-syndrome-a-case-control-study
#6
Yang Wu, Alexander Mullin, Alina Stoita
AIM: To compared individuals with serrated polyposis syndrome (SPS) to those with sessile serrated adenoma (SSA) and adenomas in the setting of endoscopists with high adenoma detection rates at a secondary and tertiary academic centre. METHODS: Retrospectively we collated the clinical, endoscopic and histological features of all patients with SPS at St Vincent's public and private hospital in the last 3 years. Patients were identified by searching through 2 pathology databases...
September 16, 2017: World Journal of Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28978472/adenomatous-polyposis-coli-defines-treg-differentiation-and-anti-inflammatory-function-through-microtubule-mediated-nfat-localization
#7
Sonia Agüera-González, Oliver T Burton, Elena Vázquez-Chávez, Céline Cuche, Floriane Herit, Jérôme Bouchet, Rémi Lasserre, Iratxe Del Río-Iñiguez, Vincenzo Di Bartolo, Andrés Alcover
Adenomatous polyposis coli (APC) is a polarity regulator and tumor suppressor associated with familial adenomatous polyposis and colorectal cancer development. Although extensively studied in epithelial transformation, the effect of APC on T lymphocyte activation remains poorly defined. We found that APC ensures T cell receptor-triggered activation through Nuclear Factor of Activated T cells (NFAT), since APC is necessary for NFAT's nuclear localization in a microtubule-dependent fashion and for NFAT-driven transcription leading to cytokine gene expression...
October 3, 2017: Cell Reports
https://www.readbyqxmd.com/read/28977861/short-stature-homeobox-2-methylation-as-a-potential-noninvasive-biomarker-in-bronchial-aspirates-for-lung-cancer-diagnosis
#8
Shumin Ni, Meng Ye, Tao Huang
Gene methylation has been frequently observed in lung cancer. However, the use of methylated genes in bronchial aspirates of patients with lung cancer remains to be evaluated. The purpose of this study was to analyze whether the detection of genes with aberrant promoter methylation can be useful noninvasive biomarkers in bronchial aspirates from lung cancer. We found that the methylation status of the cyclin-dependent kinase inhibitor 2A (P16), Ras association domain family 1 isoform (RASSF1A), adenomatous polyposis coli (APC) and short stature homeobox 2 (SHOX2) genes was significantly correlated with lung cancer in bronchial aspirates...
September 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28974244/multiple-rapidly-growing-desmoid-tumors-that-were-difficult-to-distinguish-from-recurrence-of-rectal-cancer
#9
Koki Nakanishi, Dai Shida, Shunsuke Tsukamoto, Hiroki Ochiai, Junichi Mazaki, Hirokazu Taniguchi, Yukihide Kanemitsu
BACKGROUND: Intra-abdominal desmoid tumors are usually slow growing and solitary, but multifocal desmoid tumors develop on rare occasions. Diagnosing desmoid tumors before histological examination of a surgical biopsy is often difficult. In particular, if a patient has a prior history of malignancy, it may be difficult to differentiate between these lesions and disease recurrence or metastasis. CASE PRESENTATION: We present a rare case of multiple rapidly growing intra-abdominal desmoid tumors after surgical trauma, without familial adenomatous polyposis...
October 3, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28960674/requisite-role-of-vasohibin-2-in-spontaneous-gastric-cancer-formation-and-accumulation-of-cancer-associated-fibroblasts
#10
Yasuhiro Suzuki, Shuji Kitahara, Takuya Suematsu, Masanobu Oshima, Yasufumi Sato
The vasohibin (VASH) family consists of two genes, VASH1 and VASH2. VASH1 is mainly expressed in vascular endothelial cells and suppresses angiogenesis in an autocrine manner whereas VASH2 is mainly expressed in cancer cells and exhibits pro-angiogenic activity. Employing adenomatous polyposis coli gene mutant mice, we have recently reported the role of Vash2 in the spontaneous formation of intestinal tumors. In this study, we used K19-Wnt1/C2mE (Gan) mice and examined the role of Vash2 in spontaneous gastric cancer formation...
September 27, 2017: Cancer Science
https://www.readbyqxmd.com/read/28955048/a-novel-pathogenic-single-nucleotide-germline-deletion-in-apc-gene-in-a-four-generation-chinese-family-with-familial-adenomatous-polyposis
#11
Zhao Zhang, Shengyun Liang, Dan Wang, Shengran Liang, Yuwei Li, Bingjie Wang, Tao Jiang, Guoru Zhao, Xipeng Zhang, Santasree Banerjee
Familial adenomatous polyposis (FAP) is an autosomal dominant precancerous condition which is associated with germline mutations of the APC gene. Clinically, FAP is characterized by the development of multiple colorectal adenomas or polyps which finally result in colorectal cancer by the 40 years age of the patient, if no surgical interventions have been undertaken. In this study, we present a clinical molecular study of a four generation Chinese family with FAP. Diagnosis of FAP was made on the basis of clinical manifestations, family history and medical (colonoscopy and histopathology) records...
September 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28944114/an-unusual-case-of-familial-adenomatous-polyposis-presenting-with-gout-and-jaundice
#12
Anna K Lawless, Ravi Huilgol, Christopher J Young
We highlight an unusual case of familial adenomatous polyposis (FAP) presenting initially with gout, jaundice and a periampullary carcinoma. This case may be of interest to clinicians involved in the diagnosis and management of FAP and follow-up of patients after surgical resection.
July 15, 2017: Curēus
https://www.readbyqxmd.com/read/28940230/outcome-after-restorative-proctocolectomy-and-ileal-pouch-anal-anastomosis-in-children-and-adults
#13
K Diederen, S S Sahami, M M Tabbers, M A Benninga, A Kindermann, P J Tanis, M W Oomen, J R de Jong, W A Bemelman
BACKGROUND: Studies comparing the outcome of ileal pouch-anal anastomosis (IPAA) in children and adults are scarce. This complicates decision-making in young patients. The aim of this study was to compare adverse events and pouch function between children and adults who underwent IPAA. METHODS: This cross-sectional cohort study included all consecutive children (aged less than 18 years) and adults with a diagnosis of inflammatory bowel disease or familial adenomatous polyposis who underwent IPAA in a tertiary referral centre between 2000 and 2015...
September 20, 2017: British Journal of Surgery
https://www.readbyqxmd.com/read/28940183/an-increased-cd25-positive-intestinal-regulatory-t-lymphocyte-population-is-dependent-on-cox-2-activity-in-the-apc-min-model
#14
Olusola O Faluyi, Paul Fitch, Sarah E M Howie
Only mismatch repair (MMR)-deficient colorectal cancer (CRC) appears to respond well to PD-1 inhibition at the present time. Emerging evidence suggests a role for micro-environmental factors such as CD25+ve cells modulating response to PD-1 inhibition. In the Apc(Min/+) model of familial adenomatous polyposis (MMR-proficient CRC), increased Cyclooxygenase-2 (Cox-2) expression by cells which include alternatively-activated mononuclear phagocytes promotes intestinal tumorigenesis by mechanisms which may include immune suppression...
September 23, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28938637/the-loss-of-function-of-dna-methyltransferase-1-by-sirna-impairs-the-growth-of-non-small-cell-lung-cancer-with-alleviated-side-effects-via-reactivation-of-rassf1a-and-apc-in-vitro-and-vivo
#15
Qi Lai, Yin-Hui Xu, Qiang Chen, Liang Tang, An-Gui Li, Li-Fei Zhang, Chun-Fang Zhang, Jian-Fei Song, Zhen-Zong Du
Hypermethylation of tumor suppressor genes (TSGs) promoters by DNA methyltransferase (DNMT) can be observed in almost all cancers which represent a hallmark of carcinogenesis, including lung cancer. DNMT inhibitors (e.g.5-Aza-CR/CdR) reactivate TSGs to exert anti-cancer activity and have been applied into the clinical. However, it is cytotoxic even at low concentrations, which might be not directly related to DNA methylation. We here investigated an alternative strategy in the lung cancer therapy and aimed to estimate and compare its efficiency and side effects of knockdown of DNMT1 in vitro and in vivo...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28931879/longitudinal-analysis-of-colon-crypt-stem-cell-dynamics-in-sulindac-treated-familial-adenomatous-polyposis-patients
#16
Huiying Ma, Lodewijk A A Brosens, Sjoerd G Elias, Folkert H M Morsink, Isaac J Nijman, Linda M Hylind, Elizabeth A Montgomery, G Johan A Offerhaus, Francis M Giardiello, Wendy W J de Leng
The non-steroidal anti-inflammatory drug sulindac decreases size and number of adenomas after 4-6 months of treatment for familial adenomatous polyposis (FAP) patients. However, the underlying mechanism remains unknown. As stem cells are thought to be the tumor precursor cells, visualizing their behavior is crucial for monitoring tumor progression. Increased tag diversity in inactive genes is indicative of a protracted clonal evolution and consequently, increased risk for tumor formation. Therefore, the effect of sulindac on stem cell dynamics was studied...
September 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28923119/alk-positive-gastric-inflammatory-myofibroblastic-tumor-in-an-adult-with-familial-adenomatous-polyposis-and-diffuse-fundic-polyposis
#17
Jun Fan, Bo Huang, Xiuping Yang, Ming Yang, Jun He, Xiu Nie
BACKGROUND: Inflammatory myofibroblastic tumor (IMT) of the stomach is extremely rare in adults and exhibits a variable biological behavior that ranges from frequently benign lesions to more aggressive variants. Here we report a case of gastric IMT with lymph node metastasis in an adult who had undergone total colectomy for familial adenomatous polyposis (FAP). CASE PRESENTATION: A 37-year-old man presented gradual-onset epigastric discomfort; he had undergone total colectomy for FAP 6 years before...
September 18, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28916833/inhibition-of-wnt-%C3%AE-catenin-pathway-and-histone-acetyltransferase-activity-by-rimonabant-a-therapeutic-target-for-colon-cancer
#18
Maria Chiara Proto, Donatella Fiore, Chiara Piscopo, Silvia Franceschelli, Valentina Bizzarro, Chiara Laezza, Gianluigi Lauro, Alessandra Feoli, Alessandra Tosco, Giuseppe Bifulco, Gianluca Sbardella, Maurizio Bifulco, Patrizia Gazzerro
In a high percentage (≥85%) of both sporadic and familial adenomatous polyposis forms of colorectal cancer (CRC), the inactivation of the APC tumor suppressor gene initiates tumor formation and modulates the Wnt/β-Catenin transduction pathways involved in the control of cell proliferation, adhesion and metastasis. Increasing evidence showed that the endocannabinoids control tumor growth and progression, both in vitro and in vivo. We evaluated the effect of Rimonabant, a Cannabinoid Receptor 1 (CB1) inverse agonist, on the Wnt/β-Catenin pathway in HCT116 and SW48 cell lines carrying the genetic profile of metastatic CRC poorly responsive to chemotherapies...
September 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28901964/the-role-of-the-surgical-pathologist-in-the-diagnosis-of-gastrointestinal-polyposis-syndromes
#19
Christophe Rosty
Polyps of the gastrointestinal tract are very common lesions and most frequently sporadic in nature. Some polyp subtypes are associated with rare hereditary polyposis syndromes, including juvenile polyposis syndrome, Peutz-Jeghers syndrome, and Cowden syndrome. However, many sporadic benign lesions of the gastrointestinal tract can mimic some of these syndromic hamartomatous polyps. The role of the surgical pathologist is to raise the possibility of a hereditary condition in case of suggestive polyp histology and to look for clinical information to support the suspected diagnosis...
September 8, 2017: Advances in Anatomic Pathology
https://www.readbyqxmd.com/read/28891849/adrenal-lesions-in-patients-with-attenuated-familial-adenomatous-polyposis-and-mutyh-associated-polyposis
#20
Frank G J Kallenberg, Barbara A J Bastiaansen, C Yung Nio, Maarten R Soeters, Marja A Boermeester, Cora M Aalfs, Patrick M M Bossuyt, Evelien Dekker
BACKGROUND: The reported proportion of patients with familial adenomatous polyposis who have adrenal lesions varies between 7% and 13% compared with 4% in the general population; the prevalence of adrenal lesions in patients with attenuated familial adenomatous polyposis and MUTYH-associated polyposis is unknown. Data on the clinical relevance and clinical course are limited. OBJECTIVE: We aimed to report on the frequency, characteristics, and progression of adrenal lesions in polyposis patients...
October 2017: Diseases of the Colon and Rectum
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