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Family adenomatous polyposis

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https://www.readbyqxmd.com/read/29671617/oxazole-and-thiazole-analogs-of-sulindac-for-cancer-prevention
#1
Bini Mathew, Judith V Hobrath, Michele C Connelly, R Kiplin Guy, Robert C Reynolds
AIM: Experimental and epidemiological studies and clinical trials suggest that nonsteroidal anti-inflammatory drugs possess antitumor potential. Sulindac, a widely used nonsteroidal anti-inflammatory drug, can prevent adenomatous colorectal polyps and colon cancer, especially in patients with familial adenomatous polyposis. Sulindac sulfide amide (SSA) is an amide-linked sulindac sulfide analog that showed in vivo antitumor activity in a human colon tumor xenograft model. Results/methodology: A new analog series with heterocyclic rings such as oxazole or thiazole at the C-2 position of sulindac was prepared and screened against prostate, colon and breast cancer cell lines to probe the effect of these novel substitutions on the activity of sulindac analogs...
April 19, 2018: Future Medicinal Chemistry
https://www.readbyqxmd.com/read/29663106/prevalence-of-thyroid-diseases-in-familial-adenomatous-polyposis-a-systematic-review-and-meta-analysis
#2
Jirat Chenbhanich, Amporn Atsawarungruangkit, Sira Korpaisarn, Tanit Phupitakphol, Soravis Osataphan, Prasit Phowthongkum
Thyroid cancer (TC) is a known extra-intestinal manifestation and contributes to the mortality and morbidity in patients with familial adenomatous polyposis (FAP). Its exact prevalence is not well established and recent studies have shown an increasing number of TC in this patient population. The prevalence of benign thyroid masses and endocrinologic thyroid disorders are also poorly described. We conducted a systematic review and meta-analysis by using a random-effects model to characterize TC and estimated the prevalence of thyroid diseases in FAP patients...
April 16, 2018: Familial Cancer
https://www.readbyqxmd.com/read/29650924/-endoscopy-assisted-partial-duodenal-resection-for-duodenal-adenoma-in-a-patient-with-familial-adenomatous-polyposis
#3
Tomoaki Hirashima, Shinobu Ohnuma, Hideaki Karasawa, Kazuhiro Watanabe, Hirofumi Imoto, Takeshi Aoki, Katsuyoshi Kudoh, Naoki Tanaka, Munenori Nagao, Hiroaki Musha, Fuyuhiko Motoi, Takashi Kamei, Takeshi Naitoh, Michiaki Unno
We here report a case of endoscopy-assisted partial duodenal resection for duodenal adenoma in a patient with familial adenomatous polyposis(FAP). A male underwent total proctocolectomy with ileal pouch anal anastomosis in 1997. Since 2004, duodenal adenomas occurred and the atypical grade of adenoma was gradually aggravated. Therefore, he underwent endoscopy-assisted partial duodenal resection in 2013. The pathological finding of the specimen showed well-differentiated tubular adenocarcinoma(pM, ly0, v0). No recurrence has been observed at 4 years after the operation...
March 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29643736/desmoid-fibromatosis-of-the-lower-abdominal-wall-in-irrua-nigeria
#4
Oluwafemi Olasupo Awe, Sylvester Eluehike
Desmoid fibromatosis (desmoid tumors) is rare tumors. It can occur as intra-abdominal, extraabdominal, or abdominal wall tumor depending on the site. The abdominal wall type is usually sporadic, but few have been associated with familial adenomatous polyposis. They are commonly seen in young females who are pregnant with a history of the previous cesarean section scar or within the 1st year of the last childbirth. There is an association between this tumor, presence of estrogen receptors, and abdominal trauma...
January 2018: Nigerian Journal of Surgery: Official Publication of the Nigerian Surgical Research Society
https://www.readbyqxmd.com/read/29627492/gastric-adenomas-in-familial-adenomatous-polyposis-you-only-see-them-when-you-know-what-to-look-for
#5
Victorine H Roos, Barbara A J Bastiaansen, Evelien Dekker
No abstract text is available yet for this article.
April 5, 2018: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/29627174/short-term-outcomes-in-children-undergoing-restorative-proctocolectomy-with-ileal-pouch-anal-anastomosis
#6
Katerina Dukleska, Loren Berman, Allison A Aka, Charles D Vinocur, Erin A Teeple
INTRODUCTION: Patients with familial adenomatous polyposis (FAP) and ulcerative colitis (UC) commonly undergo restorative proctocolectomy with ileal-pouch anal anastomosis (RP-IPAA). We sought to describe patient characteristics and postoperative outcomes in this patient population. METHODS: Using the National Surgical Quality Improvement Program-Pediatric Participant Use Files from 2012 to 2015, children who were 6-18years old who underwent RP-IPAA for FAP or UC were identified...
March 7, 2018: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/29624892/antibiotic-mediated-bacteriome-depletion-in-apc-min-mice-is-associated-with-reduction-in-mucus-producing-goblet-cells-and-increased-colorectal-cancer-progression
#7
Kamaljeet Kaur, Arpit Saxena, Irina Debnath, Jacqueline L O'Brien, Nadim J Ajami, Thomas A Auchtung, Joseph F Petrosino, Alexander-Jacques Sougiannis, Sarah Depaep, Alexander Chumanevich, Phani M Gummadidala, Mayomi H Omebeyinje, Sourav Banerjee, Ioulia Chatzistamou, Paramita Chakraborty, Raja Fayad, Franklin G Berger, James A Carson, Anindya Chanda
Recent epidemiological evidence suggests that exposure to antibiotics in early-to-middle adulthood is associated with an increased risk of colorectal adenoma. However, mechanistic studies in established preclinical cancer to examine these claims are extremely limited. Therefore, we investigated the effect of long-term exposure of an antibiotic cocktail composed of Vancomycin, Neomycin, and Streptomycin, on tumor development and progression in the ApcMin/+ mouse, an established genetic model for familial adenomatous polyposis...
April 6, 2018: Cancer Medicine
https://www.readbyqxmd.com/read/29617376/brain-tumor-promotes-axon-growth-across-the-midline-through-interactions-with-the-microtubule-stabilizing-protein-apc2
#8
Elise Arbeille, Greg J Bashaw
Commissural axons must cross the midline to establish reciprocal connections between the two sides of the body. This process is highly conserved between invertebrates and vertebrates and depends on guidance cues and their receptors to instruct axon trajectories. The DCC family receptor Frazzled (Fra) signals chemoattraction and promotes midline crossing in response to its ligand Netrin. However, in Netrin or fra mutants, the loss of crossing is incomplete, suggesting the existence of additional pathways. Here, we identify Brain Tumor (Brat), a tripartite motif protein, as a new regulator of midline crossing in the Drosophila CNS...
April 4, 2018: PLoS Genetics
https://www.readbyqxmd.com/read/29564660/diagnostic-imaging-and-ceus-findings-in-a-rare-case-of-desmoid-type-fibromatosis-a-case-report
#9
REVIEW
Massimo Valentino, Mauro Liberatore, Fabrizio Maghella, Valeria De Soccio, Carlo De Felice, Daniela Messineo, Francesco Maria Drudi
Desmoid-type fibromatosis (DF), also known as aggressive fibromatosis, is a locally aggressive benign fibroblastic neoplasm that can infiltrate or recur but cannot metastasize. It is rare, with an estimated annual incidence of two to four new cases per million people. Most DFs occur sporadically, but it may also be associated with the hereditary syndrome familial adenomatous polyposis. Treatment is necessary when the disease is symptomatic, especially in case of compression of critical structures. When possible, surgical resection is the treatment of choice; however, recurrence is common...
March 21, 2018: Journal of Ultrasound
https://www.readbyqxmd.com/read/29564561/development-and-endoscopic-appearance-of-colorectal-tumors-are-characterized-by-the-expression-profiles-of-mirnas
#10
REVIEW
Yoshihito Nakagawa, Yukihiro Akao, Tomomitsu Tahara, Hiromi Yamashita, Mitsuo Nagasaka, Tomoyuki Shibata, Naoki Ohmiya
Accumulating data indicates that certain microRNAs (miRNAs or miRs) are differently expressed in samples of tumors and paired non-tumorous samples taken from the same patients with colorectal tumors. We previously reported to clarify the relationship between the expression of the miRNAs and the endoscopic morphological appearance of the colorectal tumors. In this report, we focused on colorectal adenoma (tubular or tubulovillous adenoma), or tubular early carcinoma or type 2 adenocarcinoma, familial adenomatous polyposis (FAP), ulcerative colitis-associated tumor (UCAT), and sessile serrated adenoma/polyp (SSA/P)...
March 21, 2018: Medical Molecular Morphology
https://www.readbyqxmd.com/read/29556334/potential-red-flag-identification-of-colorectal-adenomas-with-wide-field-fluorescence-molecular-endoscopy
#11
Elmire Hartmans, Jolien J J Tjalma, Matthijs D Linssen, Pilar Beatriz Garcia Allende, Marjory Koller, Annelies Jorritsma-Smit, Mariana E Silva de Oliveira Nery, Sjoerd G Elias, Arend Karrenbeld, Elisabeth G E de Vries, Jan H Kleibeuker, Gooitzen M van Dam, Dominic J Robinson, Vasilis Ntziachristos, Wouter B Nagengast
Adenoma miss rates in colonoscopy are unacceptably high, especially for sessile serrated adenomas / polyps (SSA/Ps) and in high-risk populations, such as patients with Lynch syndrome. Detection rates may be improved by fluorescence molecular endoscopy (FME), which allows morphological visualization of lesions with high-definition white-light imaging as well as fluorescence-guided identification of lesions with a specific molecular marker. In a clinical proof-of-principal study, we investigated FME for colorectal adenoma detection, using a fluorescently labelled antibody (bevacizumab-800CW) against vascular endothelial growth factor A (VEGFA), which is highly upregulated in colorectal adenomas...
2018: Theranostics
https://www.readbyqxmd.com/read/29549256/plk1-has-tumor-suppressive-potential-in-apc-truncated-colon-cancer-cells
#12
Monika Raab, Mourad Sanhaji, Yves Matthess, Albrecht Hörlin, Ioana Lorenz, Christina Dötsch, Nils Habbe, Oliver Waidmann, Elisabeth Kurunci-Csacsko, Ron Firestein, Sven Becker, Klaus Strebhardt
The spindle assembly checkpoint (SAC) acts as a molecular safeguard in ensuring faithful chromosome transmission during mitosis, which is regulated by a complex interplay between phosphatases and kinases including PLK1. Adenomatous polyposis coli (APC) germline mutations cause aneuploidy and are responsible for familial adenomatous polyposis (FAP). Here we study the role of PLK1 in colon cancer cells with chromosomal instability promoted by APC truncation (APC-ΔC). The expression of APC-ΔC in colon cells reduces the accumulation of mitotic cells upon PLK1 inhibition, accelerates mitotic exit and increases the survival of cells with enhanced chromosomal abnormalities...
March 16, 2018: Nature Communications
https://www.readbyqxmd.com/read/29535845/identification-and-characterization-of-a-novel-adenomatous-polyposis-coli-mutation-in-adult-pancreatoblastoma
#13
Shigeo Yamaguchi, Tomoaki Fujii, Yuki Izumi, Yuki Fukumura, Min Han, Hideki Yamaguchi, Tomomi Akita, Chikamasa Yamashita, Shunsuke Kato, Takao Sekiya
During next generation sequencing (NGS) analysis, many missense mutations were found in a well-known oncogene, many of which were variant of uncertain significance mutations. We recently treated an adult patient with pancreatoblastoma by chemotherapy. Using an NGS cancer panel, we found a previously unreported missense mutation in the 1835 codon of the adenomatous polyposis coli ( APC ) gene. We also found a heterogeneous mutation in the 1835 codon of the APC gene in the patient's germline by Sanger sequencing...
February 13, 2018: Oncotarget
https://www.readbyqxmd.com/read/29501064/adenocarcinoma-and-polyposis-of-the-colon-in-a-20-year-old-patient-with-trisomy-13-a-case-report
#14
Danielle P Thurtle, Michael B Huck, Kristen A Zeller, Tamison Jewett
BACKGROUND: Trisomy 13 is one of the most common autosomal trisomies, and although increasing in number, patients surviving past the neonatal period remain rare. The natural history and expected complications in these patients as they age remains unknown. Despite the rarity of this condition, unusual malignancies have been reported in the medical literature for decades. It is clear that providers should suspect unusual malignancies in these patients, particularly as they age. CASE PRESENTATION: We report a 20-year-old Caucasian woman with Trisomy 13 who presented with colonic volvulus, found to have colonic polyposis and adenocarcinoma of the colon...
March 4, 2018: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29498365/-small-intestine-neoplasms
#15
EDITORIAL
Tomasy Sarosiek, Małgorzata Stelmaszuk
Small intestine tumors are rarely diagnosed as they constitute only 0.6% of all malignant tumors, including about 1-3% of malignant neoplasms of the gastrointestinal tract. They also advocate for 0.2% of deaths caused by malignant tumors. Factors that increase the risk of disease include Crohn's disease, familial adenomatous polyposis (FAP), Lynch syndrome (HNPCC - hereditary non-polyposis colorectal cancer), Peuz-Jeghers syndrome, celiac disease and acquired immunodeficiency syndrome (AIDS). Diagnosis of small intestinal tumors is difficult because the symptoms reported by patients are not characteristic...
February 23, 2018: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29492914/-updates-and-interpretation-on-nccn-clinical-practice-guidelines-for-gastric-cancer-2017-version-5
#16
Haibo Qiu, Zhiwei Zhou
The National Comprehensive Cancer Network (NCCN) issued the clinical practice guidelines for gastric cancer 2017 edition version 5, which has been fully updated for the treatment of gastric cancer, including systematic treatment, surgery and radiotherapy. This article review and summarize the updated NCCN clinical practice guidelines for gastric cancer in 2017 and try to interpret it. (1)Biomarkers: mismatch repair defect (dMMR) or high microsatellite instability (MSI-H), programmed death ligand 1 (PD-L1) and tumor Epstein Barr virus (EBV) status should be considered for patients with gastric cancer...
February 25, 2018: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/29492166/amine-containing-analogs-of-sulindac-for-cancer-prevention
#17
Bini Mathew, Judith V Hobrath, Michele C Connelly, R Kiplin Guy, Robert C Reynolds
Background: Sulindac belongs to the chemically diverse family of Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) that effectively prevent adenomatous colorectal polyps and colon cancer, especially in patients with familial adenomatous polyposis. Sulindac sulfide amide (SSA), an amide analog of sulindac sulfide, shows insignificant COX-related activity and toxicity while enhancing anticancer activity in vitro and demonstrating in vivo xenograft activity. Objective: Develop structure-activity relationships in the sulindac amine series and identify analogs with promising anticancer activities...
2018: Open Medicinal Chemistry Journal
https://www.readbyqxmd.com/read/29488047/urological-sequelae-of-desmoids-associated-with-familial-adenomatous-polyposis
#18
S J Walton, G Malietzis, S K Clark, E Havranek
The aim of this retrospective cohort study was to review urological complication rates arising from familial adenomatous polyposis associated desmoid tumours and their management. All patients over a 35-year period were identified from a prospectively maintained polyposis registry database and had an intra-abdominal desmoid tumour. Those without ureteric complications (n = 118, group A) were compared to those that developed ureteric obstruction (n = 40, group B) for demographics, treatment interventions and survival outcomes...
February 27, 2018: Familial Cancer
https://www.readbyqxmd.com/read/29487497/current-approaches-to-pediatric-polyposis-syndromes
#19
REVIEW
Aodhnait S Fahy, Christopher R Moir
Colorectal adenomatous polyposis syndromes encompass a diverse group of disorders with varying modes of inheritance and penetrance. Children may present with overt disease or within screening programs for families at high risk. We provide an overview of the array of pediatric polyposis syndromes, current screening recommendations, and surgical indications and technical considerations. Optimal disease management for these pediatric patients is still evolving and has implications for screening, surveillance, pediatric surgical management, and transition of care gastroenterologic neoplasia physicians and surgeons...
March 2018: Clinics in Colon and Rectal Surgery
https://www.readbyqxmd.com/read/29454559/update-on-hereditary-colorectal-cancer-improving-the-clinical-utility-of-multigene-panel-testing
#20
REVIEW
Marie Lorans, Eryn Dow, Finlay A Macrae, Ingrid M Winship, Daniel D Buchanan
Colorectal cancer (CRC), one of the most common cancers, is a major public health issue globally, especially in Westernized countries. Up to 35% of CRCs are thought to be due to heritable factors, but currently only 5% to 10% of CRCs are attributable to high-risk mutations in known CRC susceptibility genes, predominantly the mismatch repair genes (Lynch syndrome) and adenomatous polyposis coli gene (APC; familial adenomatous polyposis). In this era of precision medicine, high-risk mutation carriers, when identified, can be offered various risk management options that prevent cancers and improve survival, including risk-reducing medication, screening for early detection, and surgery...
January 11, 2018: Clinical Colorectal Cancer
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