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https://www.readbyqxmd.com/read/29339358/family-history-of-cancer-and-risk-of-biliary-tract-cancers-results-from-the-biliary-tract-cancers-pooling-project
#1
Alison L Van Dyke, Margaret S Langhamer, Bin Zhu, Ruth M Pfeiffer, Demetrius Albanes, Gabriella Andreotti, Laura E Beane Freeman, Andrew T Chan, Neal D Freedman, Susan M Gapstur, Graham G Giles, Francine Grodstein, Linda M Liao, Juhua Luo, Roger L Milne, Kristine R Monroe, Marian L Neuhouser, Jenny N Poynter, Mark P Purdue, Kim Robien, Catherine Schairer, Rashmi Sinha, Stephanie J Weinstein, Xuehong Zhang, Jessica L Petrick, Katherine A McGlynn, Peter T Campbell, Jill Koshiol
BACKGROUND: Although some familial cancer syndromes include biliary tract cancers (BTCs) (cancers of the gallbladder, intrahepatic and extrahepatic bile ducts, and ampulla of Vater), the few studies that have examined the relationships between family history of cancer (FHC) and BTCs have reported inconclusive findings. The objective of this study was to investigate the associations of FHC with risk of BTC in the Biliary Tract Cancers Pooling Project (BiTCaPP). METHODS: We used Cox proportional hazards regressions models to estimate HRs and 95% confidence intervals for associations between FHC (any, 1st degree, in female relative, in male relative, relative with gastrointestinal cancer, and relative with hormonally-related cancer) and BTC risk by anatomic site within the biliary tract, adjusting for sex and race/ethnicity...
January 16, 2018: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/29330096/selenoprotein-h-controls-cell-cycle-progression-and-proliferation-of-human-colorectal-cancer-cells
#2
REVIEW
Martin Bertz, Katrin Kühn, Solveigh C Koeberle, Mike F Müller, Doerte Hoelzer, Karolin Thies, Stefanie Deubel, René Thierbach, Anna P Kipp
Selenoprotein H (SELENOH) is supposed to be involved in redox regulation as well as in tumorigenesis. However, its role in healthy and transformed cells of the gastrointestinal tract remains elusive. We analysed SELENOH expression in cells depending on their selenium supply and differentiation status and found that SELENOH expression was increased in tumor tissue, in undifferentiated epithelial cells from mice and in colorectal cancer lines as compared to more differentiated ones. Knockdown studies in human colorectal cancer cells revealed that repression of SELENOH decreased cellular differentiation and increased proliferation and migration...
January 9, 2018: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29325292/-therapeutic-effect-of-transcatheter-arterial-chemoembolization-combined-with-ultrasound-guided-microwave-ablation-for-treatment-of-liver-cancer-in-special-sites
#3
A Liu, W Xu, H Xu, Y Wang, Y M Gu
Objective: To investigate the efficacy and clinical value of transcatheter arterial chemoembolization (TACE) combined with ultrasound-guided microwave ablation for the treatment of liver cancer in special sites. Methods: The patients with liver cancer in special sites (the liver cancer was adjacent to the gallbladder, dome of diaphragm, gastrointestinal tract, heart, great vessels, and portal vein, with the shortest distance from the tumor to the organ/lumen < 0.5 cm ) were enrolled as treatment group, and the patients with primary liver cancer in normal sites treated in our hospital during the same period were randomly enrolled as control group...
December 20, 2017: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/29324050/the-roles-of-adjuvant-supplements-in-colorectal-cancer-patients-on-chemotherapy-reaping-benefits-from-metabolic-crosstalk
#4
Babak Golkhalkhali, Audra Shaleena Paliany, Kin Fah Chin, Retnagowri Rajandram
The prevalence of colorectal cancer (CRC) is on a steady rise over the years, with the World Health Organization (WHO) reporting CRC as the fourth leading cause of cancer-related death worldwide. While treatment modalities may differ in accordance to the staging and severity of the disease itself, chemotherapy is almost unavoidable in most cases. Though effective in its mode of action, chemotherapy is commonly associated with undesirable side effects that negatively affects the patient in terms of quality of life, and in some cases may actually interfere with their treatment regimens, thus escalating to poor prognosis...
January 11, 2018: Nutrition and Cancer
https://www.readbyqxmd.com/read/29322404/in-vivo-models-of-inflammatory-bowel-disease-and-colitis-associated-cancer
#5
Ka Yee Fung, Tracy Putoczki
A single layer of epithelial cells separates luminal antigens from the host immune system throughout the gastrointestinal tract. A breakdown in the integrity of the epithelial barrier can lead to chronic inflammation, which is associated with numerous complications including cancer. Here we describe three experimental protocols to chemically induce acute and chronic inflammatory bowel disease (IBD) symptoms and colitis-associated colorectal cancer (CRC) progression. These in vivo mouse models are based on the induction of damage to the colonic epithelium, resulting in an inflammatory and wound healing response...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29317252/flavonoids-and-the-gastrointestinal-tract-local-and-systemic-effects
#6
REVIEW
P I Oteiza, C G Fraga, D A Mills, D H Taft
The gastrointestinal (GI) tract plays a central role in the absorption, distribution, metabolism, and excretion of flavonoids, which ultimately define the health effects of these bioactives. These aspects are modulated by the interactions of flavonoids with other dietary components, environmental factors, the host, and the GI microbiota. Flavonoid can target molecules in the luminal content, the different GI tract cell types, and the microbiota. Importantly, flavonoid actions at the GI tract can have an impact systemically, e...
January 6, 2018: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/29315013/on-the-evolution-of-bile-salts-and-the-farnesoid-x-receptor-in-vertebrates
#7
Kim Frisch, Aage Kristian Olsen Alstrup
In recent decades, our knowledge of bile salts has undergone a vast development, and bile salts are now known not only for their detergent properties that aid in the absorption of dietary lipids but also for their interaction with specific nuclear and membrane receptors. In particular, it has been realized that the response of the farnesoid X receptor (FXR) to bile acids provides a signal bridge between the liver and small intestine, controlling the intracellular levels, biosynthesis, and enterohepatic circulation of bile acids...
March 2018: Physiological and Biochemical Zoology: PBZ
https://www.readbyqxmd.com/read/29305719/factors-associated-with-palliative-care-referral-among-patients-with-advanced-cancers-a-retrospective-analysis-of-a-large-brazilian-cohort
#8
Talita Caroline de Oliveira Valentino, Bianca Sakamoto Ribeiro Paiva, Marco Antonio de Oliveira, David Hui, Carlos Eduardo Paiva
PURPOSE: The purpose of the study is to estimate the proportion of patients who had access to palliative care (PC) and to identify the timing and factors associated with this access. METHODS: A retrospective longitudinal study that included patients who died of advanced cancer between the years of 2010 and 2014 was conducted. The proportion of patients who received PC consultations was compared during those years. Sociodemographic and clinical factors, the timing between first PC consultation and death (early, ≥ 3 months; late, < 3 months), and first PC consultation were assessed...
January 5, 2018: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/29303995/local-acetaldehyde-an-essential-role-in-alcohol-related-upper-gastrointestinal-tract-carcinogenesis
#9
REVIEW
Mikko T Nieminen, Mikko Salaspuro
The resident microbiome plays a key role in exposure of the upper gastrointestinal (GI) tract mucosa to acetaldehyde (ACH), a carcinogenic metabolite of ethanol. Poor oral health is a significant risk factor for oral and esophageal carcinogenesis and is characterized by a dysbiotic microbiome. Dysbiosis leads to increased growth of opportunistic pathogens (such as Candida yeasts) and may cause an up to 100% increase in the local ACH production, which is further modified by organ-specific expression and gene polymorphisms of ethanol-metabolizing and ACH-metabolizing enzymes...
January 5, 2018: Cancers
https://www.readbyqxmd.com/read/29291067/study-on-orally-delivered-paclitaxel-nanocrystals-modification-characterization-and-activity-in-the-gastrointestinal-tract
#10
Runcong Liu, Ya-Nan Chang, Gengmei Xing, Min Li, Yuliang Zhao
Drug nanocrystals (NCs) can improve the solubility and bioavailability of insoluble drugs for oral administration. However, the biocompatibility and mechanisms of transmittance of drug NCs through the intestinal epithelial tissue are still not well understood. In this work, the physico-chemical properties and interactions with biomolecules in oral delivery pathways, as well as the transmittance through mimical intestinal epithelial cells, of NCs of paclitaxel (PTX) are investigated. PTX was previously demonstrated to be an effective anti-cancer drug...
November 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/29286478/a-murine-model-of-vertical-sleeve-gastrectomy
#11
Darline Garibay, Bethany P Cummings
Bariatric surgery, such as vertical sleeve gastrectomy (VSG), is a surgery of the gastrointestinal tract that is performed for the purpose of weight loss. Bariatric surgery is currently the most effective long-term treatment for obesity. In addition to weight loss, bariatric surgery produces additional health benefits such as remission of type 2 diabetes, remission of hypertension, and decreased risk of developing certain types of cancer. The mechanisms beyond weight loss for these benefits remain incompletely defined...
December 18, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29285324/focus-on-periodontal-disease-and-colorectal-carcinoma
#12
REVIEW
D Lauritano, L Sbordone, M Nardone, A Iapichino, L Scapoli, F Carinci
Diagnosis of focal disease, the theory that the human oral microbial (HOM) could affect the onset and development of systemic diseases, was very popular in the past, but the lack of scientific evidence has led to the abandonment of this idea. Interestingly, increasing evidence over the past 3 or so decades suggests that HOM can indeed serve as a reservoir for systemic dissemination of pathogenic bacteria and their toxins in distant body sites, favouring the developments of malignant tumours. Malignant tumours are complex communities of oncogenically transformed cells with aberrant genomes, associated non-neoplastic cells including immune and stromal cells, and sometimes HOM, including bacteria and viruses...
July 2017: Oral & Implantology
https://www.readbyqxmd.com/read/29284773/phenotypic-features-of-endometrial-tumors-in-patients-with-family-history-of-cancer
#13
L G Buchynska, N P Iurchenko, N M Glushchenko, I P Nesina
AIM: To determine the peculiarities of expression of a number of proteins-regulators of the cell cycle in endometrial cancer (EC) cells in patients with a family history of oncological pathologies. PATIENTS AND METHODS: 95 EC patients (stage І-ІІ) were included into the study. Clinical-genealogical analysis was performed. 54 patients (group I) had healthy relatives, and in families of 41 patients (group II) an aggregation of malignant tumors of different genesis (mainly tumors of the gastrointestinal tract and the female reproductive system) was recorded...
December 2017: Experimental Oncology
https://www.readbyqxmd.com/read/29278684/isolation-of-human-lymphocytes-with-high-yield-and-viability-from-the-gastrointestinal-and-female-reproductive-tract-of-a-humanized-drag-mouse
#14
Atef Allam, Kristina K Peachman, Rodrigo Aguilera-Olvera, Sofia Casares, Mangala Rao
The mucosal tissues of the gut and female reproductive tract (FRT) are susceptible to pathogen infections including bacteria, viruses, and parasites, and are also the targets for immune disorders such as Crohn's disease, inflammatory bowel disease (IBD), and many types of cancers. However, the role of the mucosal immune cells to control these diseases is largely unknown. The limited availability of human mucosal biopsy tissue and the low number of cells that can be isolated from these tissues hampers the characterization of the phenotype and function of human mucosal immune cell subsets...
December 23, 2017: Journal of Immunological Methods
https://www.readbyqxmd.com/read/29277623/molecular-mechanistic-pathway-of-colorectal-carcinogenesis-associated-with-intestinal-microbiota
#15
REVIEW
Paramita Mandal
The colon rectal portion of gastrointestinal tract (GI) is full of microorganisms with different complex community that plays important role in maintaining homeostasis. But now-a-days different literature indicated that microbiota cause development of colorectal cancer (CRC) with a disease and ultimately aggravates to death. The mechanism inside the colo-rectal portion of GI tract is not fully well-known and bacterial contribution inside it is also fully unclear. Therefore, there is certain evidence trying a target about the unclear mechanism between intestinal microbiota and CRC...
December 19, 2017: Anaerobe
https://www.readbyqxmd.com/read/29277158/postoperative-symbiotic-in-patients-with-head-and-neck-cancer-a-double-blind-randomised-trial
#16
Priscilla C Lages, Simone V Generoso, Maria Isabel T D Correia
Studies on the 'gut origin of sepsis' have suggested that stressful insults, such as surgery, can affect intestinal permeability, leading to bacterial translocation. Symbiotics have been reported to be able to improve gut permeability and modulate the immunologic system, thereby decreasing postoperative complications. Therefore we aimed to evaluate the postoperative use of symbiotics in head and neck cancer surgical patients for intestinal function and permeability, as well as the postoperative outcomes. Patients were double-blind randomised into the symbiotic (n 18) or the control group (n 18)...
December 26, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/29276749/hif-1%C3%AE-deletion-in-the-endothelium-but-not-in-the-epithelium-protects-from-radiation-induced-enteritis
#17
Aurore Toullec, Valérie Buard, Emilie Rannou, Georges Tarlet, Olivier Guipaud, Sylvie Robine, M Luisa Iruela-Arispe, Agnès François, Fabien Milliat
Background & Aims: Radiation therapy in the pelvic area is associated with side effects that impact the quality of life of cancer survivors. Interestingly, the gastrointestinal tract is able to adapt to significant changes in oxygen availability, suggesting that mechanisms related to hypoxia sensing help preserve tissue integrity in this organ. However, hypoxia-inducible factor (HIF)-dependent responses to radiation-induced gut toxicity are unknown. Radiation-induced intestinal toxicity is a complex process involving multiple cellular compartments...
2018: Cellular and Molecular Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29276214/new-perspective-on-the-treatment-of-intractable-gastrointestinal-cancers-role-of-combination-therapies
#18
Dan G Duda
Unresectable gastrointestinal cancers, such as gastric, hepatocellular, biliary tract or pancreatic carcinomas, are often resistant to anti-cancer systemic therapies, and often recur locally or even after aggressive local therapies leading to dismal survival rates. Recent developments in oncology, have offered renewed hoped for the development of more efficacious therapies. For example, our understanding of the oncogenic drivers in carcinogenesis has increased exponentially, and may potentially allow personalization of therapy...
2017: Keio Journal of Medicine
https://www.readbyqxmd.com/read/29273940/investigation-of-clostridium-difficile-ribotypes-in-symptomatic-patients-of-a-german-pediatric-oncology-center
#19
Arne Simon, Markus Mock, Norbert Graf, Lutz von Müller
In a German pediatric oncology unit, the attending physicians diagnosed 27 cases of Clostridium difficile-associated disease (CDI) from January 01, 2010 to October 31, 2013. This refers to a CDI incidence density of 2.0/1000 inpatient days. According to the hospital hygiene standard, symptomatic patients with CDI were kept in contact isolation. Most patients (median age 8.2 years) suffered from acute lymphoblastic leukemia; 88.9% were treated with broad-spectrum antibiotics during the preceding 4 weeks. 29...
December 22, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/29272976/recent-advancements-in-nanoparticle-based-drug-delivery-for-gastrointestinal-disorders
#20
Rahul Mittal, Amit P Patel, Vasanti M Jhaveri, Sae-In Samantha Kay, Luca H Debs, James M Parrish, Debbie R Pan, Desiree Nguyen, Jeenu Mittal, Rahul Dev Jayant
The emergent field of nanoparticles has presented a wealth of opportunities for improving the treatment of human diseases. Recent advances have allowed for promising developments in drug delivery, diagnostics, and therapeutics. Modified delivery systems allow improved drug delivery over traditional pH, microbe, or receptor dependent models, while antibody association allows for more advanced imaging modalities. Nanoparticles have potential clinical application in the field of gastroenterology as they offer several advantages compared to the conventional treatment systems including target drug delivery, enhanced treatment efficacy, and reduced side effects...
December 22, 2017: Expert Opinion on Drug Delivery
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