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https://www.readbyqxmd.com/read/29145346/role-of-delayed-time-point-imaging-during-abdominal-and-pelvic-cancer-screening-using-fdg-pet-ct-in-the-general-population
#1
Shotaro Naganawa, Takeharu Yoshikawa, Koichiro Yasaka, Eriko Maeda, Naoto Hayashi, Osamu Abe
Although delayed-time-point imaging is expected to improve the results of [F]-fluorodeoxyglucose (FDG)-positron emission tomography/computed tomography (PET/CT), how examinees will benefit from dual-time-point imaging versus initial-time-point imaging alone, remains unclear. This study investigated the role of delayed-time-point imaging in improving the results of abdominal and pelvic cancer screening using FDG-PET/CT.This retrospective review included 3131 screening results (average subject age: 55.5 years, range: 40-88 years)...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29142626/resection-and-observation-for-brain-metastasis-without-prompt-postoperative-radiation-therapy
#2
Tae-Wook Song, In-Young Kim, Shin Jung, Tae-Young Jung, Kyung-Sub Moon, Woo-Youl Jang
Objective: Total resection without consecutive postoperative whole brain radiation therapy is indicated for patients with a single or two sites of brain metastasis, with close follow-up by serial magnetic resonance imaging (MRI). In this study, we explored the effectiveness, usefulness, and safety of this follow-up regimen. Methods: From January 2006 to December 2015, a total of 109 patients (76 males, 33 females) underwent tumor resection as the first treatment for brain metastases (97 patients with single metastases, 12 with two metastases)...
November 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/29136221/facial-flushing-after-alcohol-intake-as-a-predictor-for-a-high-risk-of-synchronous-or-metachronous-cancer-of-the-upper-gastrointestinal-tract
#3
Hiroyuki Harada, Shogo Shinohara, Shinji Takebayashi, Masahiro Kikuchi, Keizo Fujiwara, Tetsuhiko Michida, Ryosuke Yamamoto, Kazuki Hayashi, Koji Saida, Yasushi Naito
Background: In Japan, there has been a lot of reports showing an association between facial flushing after light alcohol consumption and heterozygosity for inactive aldehyde dehydrogenase-2 (ALDH2). Persons with inactive ALDH2 may have a higher risk of alcohol-related oral, pharyngeal and esophageal cancers, compared with those with wild-type ALDH2. The purpose of this study was to examine whether flushers with oral or pharyngeal squamous cell carcinoma have an increased risk of synchronous or metachronous cancer of the upper gastrointestinal (UGI) tract...
November 9, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29125219/effects-of-a-grapevine-shoot-extract-containing-resveratrol-and-resveratrol-oligomers-on-intestinal-adenoma-development-in-mice-in-vitro-and-in-vivo-studies
#4
Michael T Empl, Hong Cai, Shan Wang, Johannes Junginger, Tina Kostka, Marion Hewicker-Trautwein, Karen Brown, Andreas J Gescher, Pablo Steinberg
SCOPE: Evidence suggests that the dietary consumption of plant extracts containing polyphenols might help prevent the onset of cancers of the gastrointestinal tract. In the present study, the chemopreventive and antiproliferative efficacy of a grapevine shoot extract (Vineatrol(®) 30) containing resveratrol and resveratrol oligomers was investigated in vivo and in vitro. METHODS AND RESULTS: The in vivo study was performed using Apc(Min) mice on a high-fat diet, which represents a model of human adenomatous polyposis, while the potential of the extract as well as some of its isolated constituents to inhibit intestinal adenoma cell proliferation in vitro was investigated using APC10...
November 10, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29121775/developments-in-optical-imaging-for-gastrointestinal-surgery
#5
Emma Upchurch, Shelly Griffiths, Gavin-Rhys Lloyd, Martin Isabelle, Catherine Kendall, Hugh Barr
To improve outcomes for patients with cancer, in terms of both survival and a reduction in the morbidity and mortality that results from surgical resection and treatment, there are two main areas that require improvement. Accurate early diagnosis of the cancer, at a stage where curative and, ideally, minimally invasive treatment is achievable, is desired as well as identification of tumor margins, lymphatic and distant disease, enabling complete, but not unnecessarily extensive, resection. Optical imaging is making progress in achieving these aims...
November 10, 2017: Future Oncology
https://www.readbyqxmd.com/read/29119943/an-appraisal-on-various-methods-of-nano-particulate-formulations
#6
Bindu Dhiman, Divtrannum Bhalla, Anju Dhiman, Sapna Saini
Nanotechnology has gained a great deal of public interest due to the needs and applications of nanomaterials in many areas of human endeavours such as industry, agriculture, business, medicine, public health amongst many others. Nanotechnology includes the integration of these nanoscale structures into larger material components and systems, keeping the control and construction of new and improved materials at the nanoscale. Biological nanoparticles are mainly developed for drug delivery systems as an alternative to liposomal technology, in order to overcome the problems related to the stability of these vesicles in biological fluids and during the storage...
November 8, 2017: Pharmaceutical Nanotechnology
https://www.readbyqxmd.com/read/29115938/carbon-ion-radiotherapy-for-80%C3%A2-years-or-older-patients-with-hepatocellular-carcinoma
#7
Shintaro Shiba, Takanori Abe, Kei Shibuya, Hiroyuki Katoh, Yoshinori Koyama, Hirohumi Shimada, Satoru Kakizaki, Ken Shirabe, Hiroyuki Kuwano, Tatsuya Ohno, Takashi Nakano
BACKGROUND: To evaluate the safety and efficacy of carbon ion radiotherapy (C-ion RT) for 80 years or older patients with hepatocellular carcinoma (HCC). METHODS: Eligibility criteria of this retrospective study were: 1) HCC confirmed by histology or typical hallmarks of HCC by imaging techniques of four-phase multidetector-row computed tomography or dynamic contrast-enhanced magnetic resonance imaging; 2) no intrahepatic metastasis or distant metastasis; 3) no findings suggesting direct infiltration of the gastrointestinal tract; 4) performance status ≤2 by Eastern Cooperative Oncology Group classification; and 5) Child-Pugh classification A or B...
November 7, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29115925/synchronous-occurrence-of-hereditary-gastric-adenocarcinoma-gastrointestinal-stromal-tumor-and-esophageal-small-cell-and-squamous-carcinoma-in-situ-an-extremely-rare-case-report
#8
Huijie Fan, Pei Lu, Li Xu, Yanru Qin, Jing Li
BACKGROUND: Hereditary diffuse gastric carcinoma (HDGC) accounts for 1-3% of all gastric carcinomas. Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors in the gastrointestinal (GI) tract but they comprise fewer than 1% of all GI malignancies. Small-cell carcinoma (SmCC) is a rare histological type of esophageal carcinoma, accounting for 0.4% to 2.8% of all esophageal tumors. Co-occurrence of SmCC with esophageal tumors caused by squamous carcinoma is also very uncommon...
November 7, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29115890/exploiting-bilosomes-for-delivering-bioactive-polysaccharide-isolated-from-enteromorpha-intestinalis-for-hacking-hepatocellular-carcinoma
#9
Azza Abdelmageed Matloub, Alaa Hamed Salama, Hadeer Ahmed Aglan, Mona Mahmoud AbouSamra, Sahar Salah Mohamed ElSouda, Hanaa Hamdy Ahmed
Bile salts containing vesicles (bilosomes) represent a portentous vesicular carrier that showed prosperous results in delivering active moieties in the gastrointestinal tract (GIT). In this study, bilosomes were exploited to deliver sulphated polysaccharide-protein complexes of Enteromorpha intestinalis (EHEM) and enhance its activity against hepatocellular carcinoma as well as resist harsh GIT conditions. Bilosomes were prepared using the sodium salt of three different bile acids (cholic, deoxycholic, taurodeoxycholic) and two different non-ionic surfactants (Span 40 and 65)...
November 8, 2017: Drug Development and Industrial Pharmacy
https://www.readbyqxmd.com/read/29113654/the-role-of-intestinal-bacteria-in-the-development-and-progression-of-gastrointestinal-tract-neoplasms
#10
REVIEW
Kosuke Mima, Shuji Ogino, Shigeki Nakagawa, Hiroshi Sawayama, Koichi Kinoshita, Ryuichi Krashima, Takatsugu Ishimoto, Katsunori Imai, Masaaki Iwatsuki, Daisuke Hashimoto, Yoshifumi Baba, Yasuo Sakamoto, Yo-Ichi Yamashita, Naoya Yoshida, Akira Chikamoto, Takatoshi Ishiko, Hideo Baba
More than 100 trillion microorganisms inhabit the human intestinal tract and play important roles in health conditions and diseases, including cancer. Accumulating evidence demonstrates that specific bacteria and bacterial dysbiosis in the gastrointestinal tract can potentiate the development and progression of gastrointestinal tract neoplasms by damaging DNA, activating oncogenic signaling pathways, producing tumor-promoting metabolites such as secondary bile acids, and suppressing antitumor immunity. Other bacterial species have been shown to produce short-chain fatty acids such as butyrate, which can suppress inflammation and carcinogenesis in the gastrointestinal tract...
December 2017: Surgical Oncology
https://www.readbyqxmd.com/read/29110990/transjugular-intrahepatic-portosystemic-shunt-as-a-bridge-to-non-hepatic-surgery-in-cirrhotic-patients-with-severe-portal-hypertension-a-systematic-review
#11
REVIEW
Eylon Lahat, Chetana Lim, Prashant Bhangui, Liliana Fuentes, Michael Osseis, Toufic Moussallem, Chady Salloum, Daniel Azoulay
BACKGROUND: Portal hypertension (PHTN) increases the risk of non-hepatic surgery in cirrhotic patients. This first systematic review analyzes the place of transjugular intrahepatic portosystemic shunt (TIPS) in preparation for non-hepatic surgery in such patients. METHODS: Medline, EMBASE, and Scopus databases were searched from 1990 to 2017 to identify reports on outcomes of non-hepatic surgery in cirrhotic patients with PHTN prepared by TIPS. Feasibility of TIPS and the planned surgery, and the short- and long-term outcomes of the latter were assessed...
October 27, 2017: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
https://www.readbyqxmd.com/read/29110040/-surgical-strategy-in-multimodal-treatment-of-gastric-and-esophageal-cancer
#12
REVIEW
J Hoeppner
The majority of curatively treatable esophageal and gastric carcinomas are currently diagnosed in a locally advanced stage in Western Europe. The vast majority of patients in Western Europe and the USA are now treated in multimodal treatment protocols. These protocols consist of neoadjuvant chemoradiation or perioperative chemotherapy plus radical surgical resection including lymphadenectomy. Radical esophagectomy and gastrectomy are still the main curative therapeutic step in these  multimodal protocols. The current surgical recommendations and guidelines were, however, based on experience and studies from almost exclusively unimodal treatment of patient groups...
November 6, 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/29107046/pharmacological-efficacy-toxicity-of-drugs-a-comprehensive-update-about-the-dynamic-interplay-of-microbes
#13
REVIEW
J A Gimenez-Bastida, L Martinez, A Moya-Pérez, J M Laparra
Oral ingestion is a common, easy to access, route for therapeutic drugs to be delivered. The conception of the gastrointestinal tract as a passive physiological compartment has evolved towards a dynamic perspective of the same. Thus, microbiota plays an important role in contributing with additional metabolic capacities to its host as well as to its phenotypic heterogeneity. These adaptations in turn influence the efficacy and toxicity of a broad range of drugs. Notwithstanding, xenobiotics and therapeutic drugs affecting the microbiome's activity also significantly impact metabolism affecting different organs and tissues, and thereby drugs' toxicity/efficacy effects...
October 26, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29104463/plasma-levels-of-endothelial-cell-specific-molecule-1-as-a-potential-biomarker-of-oral-cancer-progression
#14
Wei-En Yang, Ming-Ju Hsieh, Chiao-Wen Lin, Chun-Ying Kuo, Shun-Fa Yang, Chun-Yi Chuang, Mu-Kuan Chen
In Taiwan, oral cancer is the fourth most common cancer and the most common malignancy with a poor prognosis. Endothelial cell-specific molecule-1 (ESM-1) is secreted by vascular endothelial cells in the liver, lungs, kidneys, and gastrointestinal tract. ESM-1 expression is associated with tumor prognosis, metastasis, and angiogenesis in many cancers. However, few studies have examined the association of plasma ESM-1 levels with oral squamous cell carcinoma (OSCC) progression. We measured the plasma ESM-1 levels of 438 male OSCC patients through a commercial enzyme-linked immunosorbent assay...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/29100781/estrogens-and-female-liver-health
#15
Karen L Chen, Zeynep Madak-Erdogan
Due to declining estrogen levels during menopause, NAFLD prevalence is higher in postmenopausal women compared to in premenopausal women or in men. Postmenopausal women are more susceptible to weight gain, fat redistribution and dyslipidemia, all major hallmarks of metabolic syndrome associated with increased NAFLD risk. Gut microbiota plays important roles in development of gastrointestinal tract, metabolism and immunity. Host-microbe interactions allows regulation of a wide range of pathways that affect healthy and diseased physiology...
November 1, 2017: Steroids
https://www.readbyqxmd.com/read/29098567/oxycodone-naloxone-prolonged-release-a-review-in-severe-chronic-pain
#16
Esther S Kim
Oral oxycodone/naloxone prolonged release (PR) [Targin(®), Targinact(®), Targiniq(®)] is a 12-hourly opioid receptor agonist and opioid receptor antagonist fixed-dose combination product that is approved in countries in the EU for the management of severe pain (adequately manageable only with opioid analgesics) in adults. Oral naloxone prevents oxycodone from binding to μ-receptors in the gastrointestinal (GI) tract, thereby counteracting opioid-induced constipation (OIC). In short-term (5- to 12-week) clinical trials of adults with moderate to severe, chronic pain and OIC (OXN3001, OXN3006, OXN3506), oxycodone/naloxone PR significantly improved OIC while providing noninferior analgesia relative to oxycodone PR; results were consistent between cancer and non-cancer patients in OXN3506...
November 2, 2017: Clinical Drug Investigation
https://www.readbyqxmd.com/read/29098506/apoptosis-and-expression-of-apoptosis-related-genes-in-mouse-intestinal-tissue-after-whole-body-proton-exposure
#17
Ashley Purgason, Ye Zhang, Stanley R Hamilton, Daila S Gridley, Ayodotun Sodipe, Olufisayo Jejelowo, Govindarajan T Ramesh, Maria Moreno-Villanueva, Honglu Wu
Energetic protons are the most abundant particle type in space and can pose serious health risks to astronauts during long-duration missions. The health effects of proton exposure are also a concern for cancer patients undergoing radiation treatment with accelerated protons. To investigate the damage induced by energetic protons in vivo to radiosensitive organs, 6-week-old BALB/c male mice were subjected to 250 MeV proton radiation at whole-body doses of 0.1, 1, and 2 Gy. The gastrointestinal (GI) tract of each exposed animal was dissected 4 h post-irradiation, and the isolated small intestinal tissue was analyzed for histopathological and gene expression changes...
November 2, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/29096895/microbiota-and-breast-cancer
#18
Sridhar Mani
Breast carcinogenesis and/or cancer growth and/or drug sensitivity has a multifactorial etiology-perhaps the least well-characterized aspect being that of the distant environmental influences, namely, the microbiota that inhabit humans. For the purposes of this chapter, and to keep the subject matter well defined, microbiota is defined as bacterial microbes only. In this chapter, the pathways that lead to priming of breast cancer and/or the maintenance of a malignant state and/or influences on drug sensitivity via bacterial influences will be identified and described...
2017: Progress in Molecular Biology and Translational Science
https://www.readbyqxmd.com/read/29088978/the-biological-challenges-and-pharmacological-opportunities-of-orally-administered-nanomedicine-delivery
#19
Darren Michael Moss, Paul Curley, Hannah Kinvig, Clare Hoskins, Andrew Owen
Nano-scale formulations are being developed to improve the delivery of orally administered medicines, and the interactions between nanoformulations and the gastrointestinal luminal, mucosal and epithelial environment is currently being investigated. The mucosal surface of the gastrointestinal tract is capable of trapping and eliminating large particles and pathogens as part of the natural defences of the body, it is becoming clearer that nanoformulation properties such as particle size, charge, and shape, as well as mucous properties such as viscoelasticity, thickness, density, and turn-over time are all relevant to these interactions...
November 1, 2017: Expert Review of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29083862/tethering-of-chemotherapeutic-drug-imaging-agent-to-bile-acid-phospholipid-increases-the-efficacy-and-bioavailability-with-reduced-hepatotoxicity
#20
Vedagopuram Sreekanth, Nihal Medatwal, Sandeep Kumar, Sanjay Pal, Malyla Vamshikrishna, Animesh Kar, Priyanshu Bhargava, Aaliya Naaz, Nitin Kumar, Sagar Sengupta, Avinash Bajaj
Weakly basic drugs display poor solubility and tend to precipitate in the stomach's acidic environment causing reduced oral bioavailability. Tracing of these orally delivered therapeutic agents using molecular probes is challenged due to their poor absorption in the gastrointestinal tract (GIT). Therefore, we designed a gastric pH stable bile acid derived amphiphile where Tamoxifen (as a model anticancer drug) is conjugated to lithocholic acid derived phospholipid (LCA-Tam-PC). In vitro studies suggested the selective nature of LCA-Tam-PC for cancer cells over normal cells as compared to the parent drug...
November 9, 2017: Bioconjugate Chemistry
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