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https://www.readbyqxmd.com/read/28320200/clinical-and-biological-features-of-interval-colorectal-cancer
#1
Yu Mi Lee, Kyu Chan Huh
Interval colorectal cancer (I-CRC) is defined as a CRC diagnosed within 60 months after a negative colonoscopy, taking into account that 5 years is the "mean sojourn time." It is important to prevent the development of interval cancer. The development of interval colon cancer is associated with female sex, old age, family history of CRC, comorbidities, diverticulosis, and the skill of the endoscopist. During carcinogenesis, sessile serrated adenomas/polyps (SSA/Ps) share many genomic and colonic site characteristics with I-CRCs...
March 21, 2017: Clinical Endoscopy
https://www.readbyqxmd.com/read/28320087/the-renoprotective-activity-of-hesperetin-in-cisplatin-induced-nephrotoxicity-in-rats-molecular-and-biochemical-evidence
#2
Mukesh Kumar, Vicky Dahiya, Eshvendar Reddy Kasala, Lakshmi Narendra Bodduluru, Mangala Lahkar
Nephrotoxicity remain a major life-threatening complication in cancer patients on cisplatin chemotherapy. In this study, we investigated the protective effect and possible cellular mechanism of the hesperetin, a naturally-occurring bioflavonoid against cisplatin-induced renal injury in rats. Hesperetin was administered at a dose of 50mg/kg and 100mg/kg orally for 10days and cisplatin (7.5mg/kg, ip) was administered on the 5th day of experiment. Cisplatin induced nephrotoxicity was evidenced by alteration in the level of markers such as blood urea nitrogen, creatinine, serum albumin and severe histopathological changes in kidney...
March 14, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28320011/trends-in-prostate-specific-antigen-screening-and-prostate-cancer-interventions-3-years-after-the-u-s-preventive-services-task-force-recommendation
#3
Mei-Sing Ong, Kenneth D Mandl
No abstract text is available yet for this article.
March 21, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28319725/antiestrogen-use-in-breast-cancer-patients-reduces-the-risk-of-subsequent-lung-cancer-a-population-based-study
#4
Sung-Chao Chu, Chia-Jung Hsieh, Tso-Fu Wang, Mun-Kun Hong, Tang-Yuan Chu
BACKGROUND: There is accumulating epidemiological and preclinical evidence that estrogen might be a driver of lung cancer. Breast cancer survivors can offer a unique patient cohort to examine the effect of antiestrogen therapy on lung cancer carcinogenesis because many of these women would have received long-term selective estrogen receptor modulators (SERMs) and/or aromatase inhibitors (AIs) as adjuvant treatment. Our hypothesis is that estrogens play a role in lung cancer development, and that antiestrogen therapy would affect the incidence of subsequent lung cancer among breast cancer survivors...
March 17, 2017: Cancer Epidemiology
https://www.readbyqxmd.com/read/28319625/photoprotection-prevents-skin-cancer-let-s-make-it-fashionable-to-wear-sun-protective-clothing
#5
Jeffrey M Milch, Nicholas F Logemann
Protection from UV radiation (UVR) is of paramount importance in preventing skin cancers, the majority of which occur on sun-exposed areas of the face, ears, and neck. A reusable, inexpensive, and truly simple measure of personal protection that greatly reduces exposure to UVR, thereby reducing the risk for developing skin cancers, can be achieved simply by regularly wearing a wide-brimmed hat. In some areas of the world where sunny climates are pervasive and exposure to UVR is part of everyday life, fashion trends, policy, and public health initiatives are in sync, and photoprotection with wide-brimmed hats is embraced as a common and fashionable practice...
February 2017: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/28319429/current-standards-and-new-developments-of-colorectal-polyp-management-and-resection-techniques
#6
Daniel von Renteln, Mickael Bouin, Alan N Barkun
Colonoscopy and endoscopic removal of precancerous polyps play an important role in colorectal cancer (CRC) prevention. Improved endoscopes and quality standards have led to an increasing polyp and adenoma detection rate. Optimal polyp resection techniques and management strategies are key for an effective colonoscopy practice. Areas covered: Strategies for how to improve diminutive polyp (polyps up to 5mm in size) management are discussed because of their high prevalence. Systematic removal of diminutive polyps leads to increasing costs of colonoscopy practice, while the effect on colorectal cancer prevention might be negligible...
March 20, 2017: Expert Review of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28319243/association-of-antioxidant-supplement-use-and-dementia-in-the-prevention-of-alzheimer-s-disease-by-vitamin-e-and-selenium-trial-preadvise
#7
Richard J Kryscio, Erin L Abner, Allison Caban-Holt, Mark Lovell, Phyllis Goodman, Amy K Darke, Monica Yee, John Crowley, Frederick A Schmitt
Importance: Oxidative stress is an established dementia pathway, but it is unknown if the use of antioxidant supplements can prevent dementia. Objective: To determine if antioxidant supplements (vitamin E or selenium) used alone or in combination can prevent dementia in asymptomatic older men. Design, Setting, and Participants: The Prevention of Alzheimer's Disease by Vitamin E and Selenium (PREADViSE) trial began as a double-blind randomized clinical trial in May 2002, which transformed into a cohort study from September 2009 to May 2015...
March 20, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28319090/a-single-copy-sleeping-beauty-transposon-mutagenesis-screen-identifies-new-pten-cooperating-tumor-suppressor-genes
#8
Jorge de la Rosa, Julia Weber, Mathias Josef Friedrich, Yilong Li, Lena Rad, Hannes Ponstingl, Qi Liang, Sandra Bernaldo de Quirós, Imran Noorani, Emmanouil Metzakopian, Alexander Strong, Meng Amy Li, Aurora Astudillo, María Teresa Fernández-García, María Soledad Fernández-García, Gary J Hoffman, Rocío Fuente, George S Vassiliou, Roland Rad, Carlos López-Otín, Allan Bradley, Juan Cadiñanos
The overwhelming number of genetic alterations identified through cancer genome sequencing requires complementary approaches to interpret their significance and interactions. Here we developed a novel whole-body insertional mutagenesis screen in mice, which was designed for the discovery of Pten-cooperating tumor suppressors. Toward this aim, we coupled mobilization of a single-copy inactivating Sleeping Beauty transposon to Pten disruption within the same genome. The analysis of 278 transposition-induced prostate, breast and skin tumors detected tissue-specific and shared data sets of known and candidate genes involved in cancer...
March 20, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28319066/nucleus-accumbens-associated-protein-1-promotes-glycolysis-and-survival-of-hypoxic-tumor-cells-via-the-hdac4-hif-1%C3%AE-axis
#9
Y Zhang, Y-J Ren, L-C Guo, C Ji, J Hu, H-H Zhang, Q-H Xu, W-D Zhu, Z-J Ming, Y-S Yuan, X Ren, J Song, J-M Yang
Nucleus accumbens-associated protein-1 (NAC1), a nuclear factor of the BTB/POZ gene family, has emerging roles in cancer. In this study, we identified the NAC1-HDAC4-HIF-1α axis as an important pathway in regulating glycolysis and hypoxic adaptation in tumor cells. We show that nuclear NAC1 binds to histone deacetylase type 4 (HDAC4), hindering phosphorylation of HDAC4 at Ser(246) and preventing its nuclear export that leads to cytoplasmic degradation of the deacetylase. Accumulation of HDAC4 in the nuclei results in an attenuation of HIF-1α acetylation, enhancing the stabilization and transcriptional activity of HIF-1α and strengthening adaptive response of cells to hypoxia...
March 20, 2017: Oncogene
https://www.readbyqxmd.com/read/28319049/resisting-fatal-attraction-a-glioma-oncometabolite-prevents-cd8-t-cell-recruitment
#10
Liliana E Lucca, David A Hafler
Immunotherapy has emerged as a potent approach for treating aggressive cancers, such as non-small-cell lung tumors and metastatic melanoma. Clinical trials are now in progress for patients with malignant gliomas; however, a better understanding of how these tumors escape immune surveillance is required to enhance antitumor immune responses. With gliomas, the recruitment of CD8+ T cells to the tumor is impaired, in part preventing containment or elimination of the tumor. In this issue of the JCI, Kohanbash and colleagues present an elegant dissection of how gliomas exploit an enzymatic activity acquired through a common mutation to abrogate the migration of CD8+ T cells to the tumor...
March 20, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28319045/akt-mediated-stabilization-of-histone-methyltransferase-whsc1-promotes-prostate-cancer-metastasis
#11
Ni Li, Wei Xue, Huairui Yuan, Baijun Dong, Yufeng Ding, Yongfeng Liu, Min Jiang, Shan Kan, Tongyu Sun, Jiale Ren, Qiang Pan, Xiang Li, Peiyuan Zhang, Guohong Hu, Yan Wang, Xiaoming Wang, Qintong Li, Jun Qin
Loss of phosphatase and tensin homolog (PTEN) and activation of the PI3K/AKT signaling pathway are hallmarks of prostate cancer (PCa). However, these alterations alone are insufficient for cells to acquire metastatic traits. Here, we have shown that the histone dimethyl transferase WHSC1 critically drives indolent PTEN-null tumors to become metastatic PCa. In a PTEN-null murine PCa model, WHSC1 overexpression in prostate epithelium cooperated with Pten deletion to produce a metastasis-prone tumor. Conversely, genetic ablation of Whsc1 prevented tumor progression in PTEN-null mice...
March 20, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28317586/strategies-to-improve-local-control-of-resected-pancreas-adenocarcinoma
#12
Paul H Sugarbaker
BACKGROUND: Only approximately one in ten pancreas cancer patients is a candidate for potentially curative resection of this disease. Even this small fraction of patients has a poor prognosis following pancreatico-duodenectomy. The disease has an anatomic location that makes it difficult for the surgeon to maintain adequate margins of resection and prevent tumor spillage at the time of resection. Also, the disease is biologically aggressive and even with a complete visible resection of the disease, micrometastases are likely to remain behind...
March 2017: Surgical Oncology
https://www.readbyqxmd.com/read/28317574/role-of-oral-microbial-infections-in-oral-cancer
#13
REVIEW
Brett L Ferguson, Scott Barber, Imani H Asher, Chalmers R Wood
The role of bacterial and viral carcinogenesis in the oral cavity is increasingly of interest, as a means to provide more methods of cancer prevention. There may be relationships between bacteria and multiple strains of viruses in the progression of malignancy. Cancer cause is closely related to the type of carcinogen, as well as the synergistic or additive actions of combined risk factors, the susceptibility of the host, and duration of interaction between host and exposure to risk factor. Much research is underway to further define the role of microbial and bacterial agents in the progression of malignancy...
April 2017: Dental Clinics of North America
https://www.readbyqxmd.com/read/28317483/a-critical-review-of-bioactive-food-components-and-of-their-functional-mechanisms-biological-effects-and-health-outcomes
#14
Rosa Pérez-Gregorio, Jesús Simal-Gándara
BACKGROUND: Eating behaviours are closely related to some medical conditions potentially leading to death such as cancer, cardiovascular disease and diabetes. Healthy eating practices, maintaining a normal weight, and regular physical activity could prevent up to 80% of coronary heart disease, 90% of type-2 diabetes and one-third of all cancers[1]. METHOD: Over the last two decades, the food industry has invested much effort in research and development of healthier, more nutritious foods...
March 17, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28317282/cardiorespiratory-fitness-and-risk-of-site-specific-cancers-a%C3%A2-long-term-prospective-cohort-study
#15
Trude E Robsahm, Ragnhild S Falk, Trond Heir, Leiv Sandvik, Linda Vos, Jan Erikssen, Steinar Tretli
Based on self-reported physical activity, there is epidemiologic evidence for a beneficial relation between physical activity and colon cancer in men, but findings for other cancers are inconclusive. Measured cardiorespiratory fitness (CRF) can provide knowledge about the cancer-preventive value of physical activity. We aimed to assess relationships between CRF and risk of site-specific cancers. A cohort of 1997 healthy Norwegian men, aged 40-59 years at inclusion in 1972-1975, was followed for cancer throughout 2012 using data from the Cancer Registry of Norway...
March 20, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28317149/association-between-variants-in-genes-involved-in-the-immune-response-and-prostate-cancer-risk-in-men-randomized-to-the-finasteride-arm-in-the-prostate-cancer-prevention-trial
#16
Danyelle A Winchester, Cathee Till, Phyllis J Goodman, Catherine M Tangen, Regina M Santella, Teresa L Johnson-Pais, Robin J Leach, Jianfeng Xu, S Lilly Zheng, Ian M Thompson, M Scott Lucia, Scott M Lippman, Howard L Parnes, William B Isaacs, Angelo M De Marzo, Charles G Drake, Elizabeth A Platz
BACKGROUND: We reported that some, but not all single nucleotide polymorphisms (SNPs) in select immune response genes are associated with prostate cancer, but not individually with the prevalence of intraprostatic inflammation in the Prostate Cancer Prevention Trial (PCPT) placebo arm. Here, we investigated whether these same SNPs are associated with risk of lower- and higher-grade prostate cancer in men randomized to finasteride, and with prevalence of intraprostatic inflammation among controls...
March 20, 2017: Prostate
https://www.readbyqxmd.com/read/28316322/predictive-factors-of-neoplastic-gallbladder-polyps-outcomes-of-278-patients
#17
Serdar Gökay Terzioğlu, Murat Özgür Kılıç, Ali Sapmaz, Ahmet Serdar Karaca
BACKGROUND/AIMS: Distinguishing between neoplastic and nonneoplastic gallbladder polyps (GBPs) in the preoperative workup is of great importance for appropriate treatment. The present study aimed to investigate the characteristics of GBPs and to determine potential predictive factors of neoplastic polyps. MATERIALS AND METHODS: The data of 278 patients who were confirmed to have GBPs through laparoscopic cholecystectomy were retrospectively analyzed. Polyps were classified as nonneoplastic and neoplastic GBPs, according to histopathological diagnoses...
March 17, 2017: Turkish Journal of Gastroenterology: the Official Journal of Turkish Society of Gastroenterology
https://www.readbyqxmd.com/read/28316059/prevention-of-tumour-cell-apoptosis-associated-with-sustained-protein-kinase-b-phosphorylation-is-more-sensitive-to-regulation-by-insulin-signalling-than-stimulation-of-proliferation-and-extracellular-signal-regulated-kinase
#18
Christoph Schmid, Claudia Ghirlanda, Markus Niessen
Insulin controls blood glucose while insulin-like growth factor (IGF) 1 is an important growth factor. Interestingly, both hormones have overlapping bioactivities and can activate the same intracellular signal transduction cascades. Growth control (mainly by IGF1) and metabolic function (predominantly by insulin) are believed to depend on activation of extracellular signal-regulated kinases (ERKs) 1/2 and protein kinase B (Akt/PKB), respectively. Therefore, insulin analogues that are used to normalize blood glucose are tested for their ability to preferentially activate Akt/PKB but not ERK1/2 and mitogenesis...
March 18, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28316033/cardiovascular-complications-of-targeted-therapies-for-chronic-myeloid-leukemia
#19
REVIEW
Rongras Damrongwatanasuk, Michael G Fradley
The development of tyrosine kinase inhibitors (TKIs) dramatically changed the treatment landscape for many different cancers including chronic myeloid leukemia (CML). With the introduction of imatinib, the first TKI developed and approved to effectively treat CML, patient survival has increased dramatically and, in some cases, this fatal cancer can be managed as a chronic disease. Since the approval of imatinib in 2002, four additional TKIs have been developed to treat this disease including the second-generation TKIs nilotinib, dasatinib, and bosutinib and the third-generation TKI ponatinib...
April 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28316010/protective-effect-of-lactobacillus-casei-on-dmh-induced-colon-carcinogenesis-in-mice
#20
Cesar Antonio Irecta-Nájera, María Del Rosario Huizar-López, Josefina Casas-Solís, Patricia Castro-Félix, Anne Santerre
The administration of probiotics is a promising approach to reduce the prevalence of colon cancer, a multifactorial disease, with hereditary factors, as well as environmental lifestyle-related risk factors. Biogenic polyamines, putrescine, spermidine, and spermine are small cationic molecules with great roles in cell proliferation and differentiation as well as regulation of gene expression. Ornithine decarboxylase is the first rate-limiting enzyme for polyamine synthesis, and upregulation of ornithine decarboxylase activity and polyamine metabolism has been associated with abnormal cell proliferation...
March 18, 2017: Probiotics and Antimicrobial Proteins
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