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https://www.readbyqxmd.com/read/28333140/metabolic-and-molecular-insights-into-an-essential-role-of-nicotinamide-phosphoribosyltransferase
#1
Li Q Zhang, Leon Van Haandel, Min Xiong, Peixin Huang, Daniel P Heruth, Charlie Bi, Roger Gaedigk, Xun Jiang, Ding-You Li, Gerald Wyckoff, Dmitry N Grigoryev, Li Gao, Linheng Li, Min Wu, J Steven Leeder, Shui Qing Ye
Nicotinamide phosphoribosyltransferase (NAMPT) is a pleiotropic protein implicated in the pathogenesis of acute respiratory distress syndrome, aging, cancer, coronary heart diseases, diabetes, nonalcoholic fatty liver disease, obesity, rheumatoid arthritis, and sepsis. However, the underlying molecular mechanisms of NAMPT in these physiological and pathological processes are not fully understood. Here, we provide experimental evidence that a Nampt gene homozygous knockout (Nampt(-/-)) resulted in lethality at an early stage of mouse embryonic development and death within 5-10 days in adult mice accompanied by a 25...
March 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28328200/fluorescence-resonance-energy-transfer-based-dna-tetrahedron-nano-tweezer-for-highly-reliable-detection-of-tumor-related-mrna-in-living-cells
#2
Lei He, Dan-Qing Lu, Hao Liang, Sitao Xie, Can Luo, Miaomiao Hu, Liujun Xu, Xiaobing Zhang, Weihong Tan
Accurate detection and imaging of tumor-related mRNA in living cells hold great promise for early cancer detection. However, currently, most probes designed to image intracellular mRNA confront intrinsic interferences arising from complex biological matrices and resulting in inevitable false-positive signals. To circumvent this problem, a new class of intracellular DNA nanoprobe, termed DNA tetrahedron nano-tweezer (DTNT), was developed to reliably image tumor-related mRNA in living cells based on the FRET (fluorescence resonance energy transfer) "off" to "on" signal readout mode...
March 22, 2017: ACS Nano
https://www.readbyqxmd.com/read/28325565/impact-of-the-method-and-success-of-pharyngeal-reconstruction-on-the-outcome-of-treating-laryngeal-and-hypopharyngeal-cancers-with-pharyngolaryngectomy-a-national-analysis
#3
S A R Nouraei, A Dias, H Kanona, D Vokes, P O'Flynn, P M Clarke, S E Middleton, A Darzi, P Aylin, N Jallali
BACKGROUND: Surgical treatment of cancers that arise from or invade the hypopharynx presents major reconstructive challenges. Reconstructive failure exposes the airway and neck vessels to digestive contents. METHODS: We performed a national N = near-all analysis of the administrative dataset to identify pharyngolaryngectomies in England between 2002 and 2012. Information about morbidity, pharyngeal closure method and post-operative complications was derived. RESULTS: There were 1589 predominantly male (78%) patients whose mean age at surgery was 62 years...
January 9, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28325187/postgastrectomy-syndromes-and-nutritional-considerations-following-gastric-surgery
#4
REVIEW
Jeremy L Davis, R Taylor Ripley
Postgastrectomy syndromes result from altered form and function of the stomach. Gastrectomy disrupts reservoir capacity, mechanical digestion and gastric emptying. Early recognition of symptoms with prompt evaluation and treatment is essential. Many syndromes resolve with minimal intervention or dietary modifications. Re-operation is not common but often warranted for afferent and efferent loop syndromes and bile reflux gastritis. Preoperative nutritional assessment and treatment of common vitamin and mineral deficiencies after gastrectomy can reduce the incidence of chronic complications...
April 2017: Surgical Clinics of North America
https://www.readbyqxmd.com/read/28325058/-mixed-adenoneuroendocrine-carcinoma-manec-of-the-gastrointestinal-tract
#5
R Šefr, L Němec, P Fabian, L Fiala
Mixed adenoneuroendocrine carcinoma (MANEC) is a rare tumour of the gastrointestinal tract composed of adenocarcinoma and neuroendocrine carcinoma. This pathologic diagnosis was recently defined by the WHO in 2010. The tumour may appear in various levels of the digestive tract including the oesophagus, stomach, colon and appendix. Biological behaviour of MANEC seems to be quite unpredictable and the prognosis uncertain. The disease may also mimic "simple" carcinoma. Only several tens of cases have been reported so far...
2017: Rozhledy V Chirurgii: Měsíčník Československé Chirurgické Společnosti
https://www.readbyqxmd.com/read/28323486/enterolactone-induces-g1-phase-cell-cycle-arrest-in-nonsmall-cell-lung-cancer-cells-by-downregulating-cyclins-and-cyclin-dependent-kinases
#6
Shireen Chikara, Kaitlin Lindsey, Harsharan Dhillon, Sujan Mamidi, Jeffrey Kittilson, Melpo Christofidou-Solomidou, Katie M Reindl
Flaxseed is a rich source of the plant lignan secoisolariciresinol diglucoside (SDG), which is metabolized into mammalian lignans enterodiol (ED) and enterolactone (EL) in the digestive tract. The anticancer properties of these lignans have been demonstrated for various cancer types, but have not been studied for lung cancer. In this study, we investigated the anticancer effects of EL for several nonsmall cell lung cancer (NSCLC) cell lines of various genetic backgrounds. EL inhibited the growth of A549, H441, and H520 lung cancer cells in concentration- and time-dependent manners...
March 21, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28322788/a-recombinant-polypeptide-of-the-megakaryocyte-potentiating-factor-is-a-potential-biomarker-in-plasma-for-the-detection-of-mesothelioma
#7
Irina Raiko, Hans-Peter Rihs, Jan Gleichenhagen, Ingrid Sander, Jens Kollmeier, Martin Lehnert, Thomas Brüning, Georg Johnen
Malignant mesothelioma (MM) is a fatal disease mostly associated with asbestos exposure and difficult to detect by non-invasive methods. This study aimed to use recombinant fragments of the megakaryocyte potentiating factor (MPF) for the development of cost-effective MPF ELISAs. Three polypeptides spanning the MPF region (MPF1-148, MPF 34-288, MPF/MSLN254-400) were produced in E.coli as maltose-binding protein hybrids. After isolation, Factor Xa digest, and purification, the polypeptides were used for the generation of rabbit antibodies and development of ELISAs...
March 17, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28320471/influence-of-autophagy-on-the-efficacy-of-radiotherapy
#8
REVIEW
Shing Yau Tam, Vincent Wing Cheung Wu, Helen Ka Wai Law
Autophagy is an important catabolic process in which cells digest and recycle their own cytoplasmic contents for maintaining cellular homeostasis. Interestingly, autophagy could play both pro-death and pro-survival roles in influencing the development of cancer via various signal pathways. As radiotherapy is one of the main treatment modalities for cancer, we reviewed the effect of autophagy modulations on radiosensitivity and radiotherapy efficacy in various cancer types. The future development of autophagy modifications for improving radiotherapy efficacy and cancer prognosis will also be discussed...
March 21, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28320060/clinical-value-of-octamer-binding-transcription-factor-4-as-a-prognostic-marker-in-patients-with-digestive-system-cancers-a-systematic-review-and-meta-analysis
#9
Zhiqiang Chen, Long Zhang, Qin Zhu, Xiaowei Wang, Jindao Wu, Xuehao Wang
BACKGROUND AND AIM: The role of octamer-binding transcription factor 4 (Oct4) has been implicated in the clinical prognosis of various kinds of digestive system cancers, but the results remain controversial. The purpose of this meta-analysis is to assess the potential role of Oct4 as a prognostic marker in digestive system tumors. METHODS: Relevant articles were retrieved from Pubmed, Web of Science, and Cochrane Library up to July 2016. The software Stata 12.0 was used to analyze the outcomes, including overall survival (OS), disease-free survival, recurrence-free survival, and clinicopathological characteristics...
March 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28318170/-application-of-saliva-in-disease-diagnosis
#10
Cheng Xingqun, Zhou Xuedong, Xu Xin
Saliva is secreted by salivary glands and performs a variety of functions, including mouth cleaning and protection, antibacterial activity, and digestion. With the rapid progress in salivaomics, saliva became recognized as a potential pool of biological markers. Being a non-invasive and safe source, saliva is a potential substitute for blood in diagnosis and prognosis of diseases. This review summarizes the latest advancement in saliva-related studies and presents the potential value of saliva in early diagnosis of oral diseases, such as dental caries, periodontal disease, cancer, diabetes, and other systemic disorders...
December 1, 2016: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28317015/evaluation-of-the-2015-aga-guidelines-on-pancreatic-cystic-neoplasms-in-a-large-surgically-confirmed-multicenter-cohort
#11
Phillip S Ge, V Raman Muthusamy, Srinivas Gaddam, Diana-Marie Jaiyeola, Stephen Kim, Alireza Sedarat, Timothy R Donahue, Lindsay Hosford, Robert H Wilson, David P Grande, Rajesh N Keswani, Vladimir M Kushnir, Daniel Mullady, Steven A Edmundowicz, Dayna S Early, Srinadh Komanduri, Sachin Wani, Rabindra R Watson
Background and study aims The American Gastroenterological Association (AGA) recently published guidelines for the management of asymptomatic pancreatic cystic neoplasms (PCNs). We aimed to evaluate the diagnostic characteristics of the AGA guidelines in appropriately recommending surgery for malignant PCNs. Patients and methods A retrospective multicenter study was performed of patients who underwent endoscopic ultrasound (EUS) for evaluation of PCNs who ultimately underwent surgical resection from 2004 - 2014...
March 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/28316621/impact-of-pressurized-intraperitoneal-aerosol-chemotherapy-on-quality-of-life-and-symptoms-in-patients-with-peritoneal-carcinomatosis-a-retrospective-cohort-study
#12
Hugo Teixeira Farinha, Fabian Grass, Amaniel Kefleyesus, Chahin Achtari, Benoit Romain, Michael Montemurro, Nicolas Demartines, Martin Hübner
Background. Peritoneal cancer treatment aims to prolong survival, but preserving Quality of Life (QoL) under treatment is also a priority. Pressurized Intraperitoneal Aerosol Chemotherapy (PIPAC) is a novel minimally invasive repeatable treatment modality. The aim of the present study was to assess QoL in our cohort of PIPAC patients. Methods. Analysis of all consecutive patients included from the start of PIPAC program (January 2015). QoL (0-100: optimal) and symptoms (no symptom: 0-100) were measured prospectively before and after every PIPAC procedure using EORTC QLQ-C30...
2017: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/28316200/-the-research-progress-of-lgr4-in-the-eye-development-and-related-diseases
#13
A C Xu, Q Hou
LGR4, also known as GPR48, is a member of the leucine-rich, G protein-coupled receptor family. It is widely expressed in tissues of the reproductive system, urinary system, sensory organs, digestive system, and central nervous system. LGR4 plays an important role in the development of various organs and cancer development and progression by modulating multiple signaling pathways. Recent studies have revealed that LGR4 is related with many kinds of human diseases such as gastrointestinal carcinomas. Eye development is a dynamic process regulated by a number of growth factors and cytokines...
March 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28315877/the-value-of-lncrna-hulc-as-a-prognostic-factor-for-survival-of-cancer-outcome-a-meta-analysis
#14
Xian Chen, Limin Lun, Huabin Hou, Runhua Tian, Haiping Zhang, Yunyuan Zhang
AIMS: Growing evidence from recent studies has shown that lncRNA HULC plays a role in the development of multiple carcinomas. This meta-analysis aimed to analyze available data to identify the prognostic value of HULC in multiple tumors. METHODS: A systematic search was performed by using PubMed (medline), Embase, ISI Web of Knowledge, Springer, the Cochrane Library, Scopus, BioMed Central, ScienceDirect, Wanfang, Weipu, and China National Knowledge Internet (CNKI) computerized databases from inception to Nov 30, 2016...
March 17, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28314687/immune-checkpoint-inhibition-for-digestive-cancers
#15
Sylvain Manfredi, Antoine Drouillard
No abstract text is available yet for this article.
March 14, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28302922/covariation-of-peptide-abundances-accurately-reflects-protein-concentration-differences
#16
Bo Zhang, Mohammad Pirmoradian, Roman Zubarev, Lukas Käll
Most implementations of mass spectrometry-based proteomics involve enzymatic digestion of proteins, expanding the analysis to multiple proteolytic peptides for each protein. Currently, there is no consensus of how to summarize peptides' abundances to protein concentrations, and such efforts are complicated by the fact that error control is normally applied to the identification process, and do not directly control errors linking peptide abundance measures to protein concentration. Peptides resulting from suboptimal digestion or being partially modified are not representative of the protein concentration...
March 16, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28302910/new-insights-into-autophagosome-lysosome-fusion
#17
REVIEW
Shuhei Nakamura, Tamotsu Yoshimori
Macroautophagy (autophagy) is a highly conserved intracellular degradation system that is essential for homeostasis in eukaryotic cells. Due to the wide variety of the cytoplasmic targets of autophagy, its dysregulation is associated with many diseases in humans, such as neurodegenerative diseases, heart disease and cancer. During autophagy, cytoplasmic materials are sequestered by the autophagosome - a double-membraned structure - and transported to the lysosome for digestion. The specific stages of autophagy are induction, formation of the isolation membrane (phagophore), formation and maturation of the autophagosome and, finally, fusion with a late endosome or lysosome...
March 16, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/28294393/the-new-msc-mscs-as-pericytes-are-sentinels-and-gatekeepers
#18
REVIEW
Arnold I Caplan
Human Mesenchymal Stem Cells, hMSCs, were first named over 25 years ago with the "stem cell" nomenclature derived from the fact that we and others could cause these cells to differentiate into a number of different mesodermal phenotypes in cell culture. The capacity to form skeletal tissue in vitro encouraged the use of hMSCs for the fabrication of tissue engineered skeletal repair tissue with subsequent transplantation to in vivo sites. With the current realization that MSCs are derived from perivascular cells, pericytes, and the immunomodulatory and trophic capabilities of MSCs in both in vitro and in vivo test systems, a complete re-evaluation of the role and functions of MSCs in the body was required...
March 15, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28293990/strong-evidence-of-association-between-obesity-and-some-cancers
#19
(no author information available yet)
A large review lead by researchers at Imperial College London has discovered 'strong evidence' to support the association between obesity and some major types of cancer, mainly those related to digestive organs and hormone-related malignancies.
March 15, 2017: Nursing Standard
https://www.readbyqxmd.com/read/28288195/long-term-trends-and-survival-analysis-of-esophageal-and-gastric-cancer-in-yangzhong-1991-2013
#20
Zhaolai Hua, Xianzhi Zheng, Hengchuan Xue, Jianming Wang, Jun Yao
OBJECTIVE: To describe the long-term trends of the incidence, mortality and survival of upper digestive tract cancers in a high-risk area of China. METHODS: We extracted esophageal and gastric cancer cases diagnosed from 1991 to 2013 through the Yangzhong Cancer Registry and calculated the crude and age-standardized incidence and mortality rates. Cancer trends were calculated using the Joinpoint Regression Program and were reported using the annual percentage change (APC)...
2017: PloS One
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