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https://www.readbyqxmd.com/read/28106244/second-malignancy-risk-in-patients-with-bronchopulmonary-carcinoids-epidemiological-results-from-italian-network-of-cancer-registries
#1
Filippo Lococo, Carla Galeone, Claudio Sacchettini, Giovanni Leuzzi, Alfredo Cesario, Massimiliano Paci, Lucia Mangone
PURPOSE: This epidemiological study aimed to determine the prevalence and characteristics of second tumors (STs) in patients with bronchopulmonary carcinoids (BCs). METHODS: Data on neuroendocrine carcinomas (NECs) from the AIRTUM registry (1975-2011) were used for the analysis. Among 32,325 NECs, we focused our analysis on 3,205 patients (9.9%) affected by BCs. The overall ST number and incidence were calculated. The number of STs was compared with the expected cancer number in the healthy Italian population, and the standardized incidence ratio (SIR) and 95% confidence intervals were calculated...
January 16, 2017: Tumori
https://www.readbyqxmd.com/read/28103256/tumor-infiltration-in-enhancing-and-non-enhancing-parts-of-glioblastoma-a-correlation-with-histopathology
#2
Oliver Eidel, Sina Burth, Jan-Oliver Neumann, Pascal J Kieslich, Felix Sahm, Christine Jungk, Philipp Kickingereder, Sebastian Bickelhaupt, Sibu Mundiyanapurath, Philipp Bäumer, Wolfgang Wick, Heinz-Peter Schlemmer, Karl Kiening, Andreas Unterberg, Martin Bendszus, Alexander Radbruch
PURPOSE: To correlate histopathologic findings from biopsy specimens with their corresponding location within enhancing areas, non-enhancing areas and necrotic areas on contrast enhanced T1-weighted MRI scans (cT1). MATERIALS AND METHODS: In 37 patients with newly diagnosed glioblastoma who underwent stereotactic biopsy, we obtained a correlation of 561 1mm3 biopsy specimens with their corresponding position on the intraoperative cT1 image at 1.5 Tesla. Biopsy points were categorized as enhancing (CE), non-enhancing (NE) or necrotic (NEC) on cT1 and tissue samples were categorized as "viable tumor cells", "blood" or "necrotic tissue (with or without cellular component)"...
2017: PloS One
https://www.readbyqxmd.com/read/28101034/a-case-of-poorly-differentiated-large-cell-neuroendocrine-carcinoma-of-the-cecum-a-rare-malignancy-with-review-of-the-literature
#3
Andrew T Mertz, Michelle A Ojemuyiwa
Poorly differentiated neuroendocrine carcinomas (NECs) are rare tumors that can arise anywhere along the gastrointestinal tract. They often present in advanced stage and portend a poor prognosis when compared to adenocarcinomas of the same stage. Characterization of these tumors is best accomplished with tissue biopsy, as peripheral tumor markers commonly used in NECs are of little utility. Therapeutic strategies often involve chemotherapeutic regimens that have been used to treat small-cell lung cancer. Recent studies have shown that programmed death-ligand 1 (PD-L1) expression within poorly differentiated NECs is a poor prognostic indicator...
September 2016: Case Reports in Oncology
https://www.readbyqxmd.com/read/28099254/everolimus-in-pancreatic-neuroendocrine-carcinomas-g3
#4
Francesco Panzuto, Maria Rinzivillo, Francesca Spada, Lorenzo Antonuzzo, Toni Ibrahim, Davide Campana, Nicola Fazio, Gianfranco Delle Fave
OBJECTIVE: The aim of this study was to investigate everolimus efficacy in well-moderately differentiated pancreatic NEC (pNEC) G3. METHODS: This was a retrospective analysis of patients with pNEC G3 and Ki67 20% to 55% treated with everolimus. RESULTS: Fifteen patients with median Ki67 30% and Eastern Cooperative Oncology Group performance status 0 to 1 were evaluated. Of these, 4 patients received everolimus as first-line treatment, whereas 11 had been pretreated with chemotherapy or peptide receptor radionuclide therapy...
January 18, 2017: Pancreas
https://www.readbyqxmd.com/read/28098761/pancreatic-neuroendocrine-neoplasms-basic-biology-current-treatment-strategies-and-prospects-for-the-future
#5
REVIEW
Akihiro Ohmoto, Hirofumi Rokutan, Shinichi Yachida
Pancreatic neuroendocrine neoplasms (pNENs) are rare tumors accounting for only 1%-2% of all pancreatic tumors. pNENs are pathologically heterogeneous and are categorized into three groups (neuroendocrine tumor: NET G1, NET G2; and neuroendocrine carcinoma: NEC) on the basis of the Ki-67 proliferation index and the mitotic count according to the 2010 World Health Organization (WHO) classification of gastroenteropancreatic NENs. NEC in this classification includes both histologically well-differentiated and poorly differentiated subtypes, and modification of the WHO 2010 classification is under discussion based on genetic and clinical data...
January 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28096129/current-knowledge-of-necrotizing-enterocolitis-in-preterm-infants-and-the-impact-of-different-types-of-enteral-nutrition-products
#6
REVIEW
Jocelyn Shulhan, Bryan Dicken, Lisa Hartling, Bodil Mk Larsen
Preterm infants are extremely vulnerable to a range of morbidities and mortality. Underdeveloped cardiac, respiratory, gastrointestinal, and immune systems in the preterm period increase the risk of necrotizing enterocolitis (NEC), a serious disease of the gut. NEC affects 5-12% of very-low birth-weight infants, leads to surgery in 20-40% of cases, and is fatal in 25-50% of cases. There are multiple factors that may contribute to NEC, but the exact cause is not yet fully understood. Severe cases can result in intestinal resection or death, and the health care costs average >$300,000/infant when surgical management is required...
January 2017: Advances in Nutrition
https://www.readbyqxmd.com/read/28092913/umbilical-venous-catheter-malposition-is-associated-with-necrotizing-enterocolitis-in-premature-infants
#7
Mustafa Sulemanji, Khashayar Vakili, David Zurakowski, Wayne Tworetzky, Steven J Fishman, Heung Bae Kim
OBJECTIVE: The etiology of necrotizing enterocolitis (NEC) remains elusive despite known associations with several factors, including intestinal ischemia related to the effects of umbilical arterial catheterization on the mesenteric circulation. However, the role of the mesenteric venous circulation has yet to be studied as a potential cause of NEC. We examined the association between umbilical venous catheter (UVC) position and the development of NEC in premature infants. DESIGN: A prospective cohort study was performed to examine the effect of UVC on portosystemic shunting via the ductus venosus (DV) and its potential role in NEC...
January 17, 2017: Neonatology
https://www.readbyqxmd.com/read/28091978/patient-specific-optimisation-of-administered-activity-and-acquisition-times-for-18-f-fdg-pet-imaging
#8
Fred Wickham, Helena McMeekin, Maria Burniston, Daniel McCool, Deborah Pencharz, Annah Skillen, Thomas Wagner
BACKGROUND: The purpose of this study is to identify a method for optimising the administered activity and acquisition time for (18)F-FDG PET imaging, yielding images of consistent quality for patients with varying body sizes and compositions, while limiting radiation doses to patients and staff. Patients referred for FDG scans had bioimpedance measurements. They were injected with 3 MBq/kg of (18)F up to 370 MBq and scanned on a Siemens Biograph mCT at 3 or 4 min per bed position...
December 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28088644/tert-butyl-hydroperoxide-t-bhp-induced-apoptosis-and-necroptosis-in-endothelial-cells-roles-of-nox4-and-mitochondrion
#9
Wenwen Zhao, Haitao Feng, Wen Sun, Kang Liu, Jin-Jian Lu, Xiuping Chen
Oxidative stress causes endothelial death while underlying mechanisms remain elusive. Herein, the pro-death effect of tert-butyl hydroperoxide (t-BHP) was investigated with low concentration (50μM) of t-BHP (t-BHPL) and high concentration (500μM) of t-BHP (t-BHPH). Both t-BHPL and t-BHPH induced endothelial cell death was determined. T-BHPL induced caspase-dependent apoptosis and reactive oxygen species (ROS) generation, which was inhibited by N-acetyl-L-cysteine (NAC). Furthermore, NADPH oxidase inhibitor diphenyleneiodonium (DPI), NOX4 siRNA, and NOX4 inhibitor GKT137831 reduced t-BHPL-induced ROS generation while mitochondrial respiratory chain inhibitors rotenone (Rot), 2-thenoyltrifluoroacetone (TTFA), and antimycin A (AA) failed to do so...
January 5, 2017: Redox Biology
https://www.readbyqxmd.com/read/28088292/human-fetal-intestinal-epithelial-cells-metabolize-and-incorporate-branched-chain-fatty-acids-in-a-structure-specific-manner
#10
Lei Liu, Zhen Wang, Hui Gyu Park, Chuang Xu, Peter Lawrence, Xueli Su, Vasuki Wijendran, W Allan Walker, Kumar S D Kothapalli, J Thomas Brenna
BACKGROUND: Branched chain fatty acids (BCFA) are constituents of gastrointestinal (GI) tract in healthy newborn human infants, reduce the incidence of necrotizing enterocolitis (NEC) in a neonatal rat model, and are incorporated into small intestine cellular lipids in vivo. We hypothesize that BCFA are taken up, metabolized and incorporated into human fetal cells in vitro. METHODS: Human H4 cells, a fetal non-transformed primary small intestine cell line, were incubated with albumin-bound non-esterified anteiso-17:0, iso-16:0, iso-18:0 and/or iso-20:0, and FA profiles in lipid fractions were analyzed...
January 2017: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/28087247/activity-of-von-willebrand-factor-and-levels-of-vwf-cleaving-protease-adamts13-in-preterm-and-full-term-neonates
#11
T Strauss, N Elisha, B Ravid, N Rosenberg, A Lubetsky, S Levy-Mendelovich, I Morag, U Nowak Göttl, G Kenet
Von Willebrand Factor (VWF) has a central role in primary hemostasis. Its biological activity is related to the size of VWF multimers, spontaneously binding to platelets and inducing circulating microthrombi formation. This process is down-regulated by the VWF cleaving protease ADAMTS13 (A Disintegrin and Metalloprotease with ThromboSpondin motif). To date, information regarding the levels of ADAMTS13 in neonates and preterm infants is scarce. Our aim was to study ADAMTS13, VWF antigen (Ag) and Ristocetin cofactor (RiCof) activity in neonates and evaluate potential correlations with perinatal complications...
December 29, 2016: Blood Cells, Molecules & Diseases
https://www.readbyqxmd.com/read/28074897/prognostic-factors-in-neuroendocrine-carcinoma-biological-markers-are-more-useful-than-histomorphological-markers
#12
Patricia Freis, Emmanuelle Graillot, Pascal Rousset, Valérie Hervieu, Laurence Chardon, Catherine Lombard-Bohas, Thomas Walter
Gastroenteropancreatic neuroendocrine carcinomas (GEP-NEC) are a very aggressive type of cancer, for which prognostic factors are lacking. We analysed clinical and histomorphological prognostic markers of overall survival (OS), completed with a record of biological and haematological data of patients diagnosed between December 2002 and December 2015. The median OS was 16 months (95% CI 13.9-18.1). After univariate analysis, performance status (PS) ≥ 2 and stage IV were associated with a worse outcome (9 months and 14 months, respectively), as well as patients with lactate dehydrogenase (LDH) and aspartate aminotransferase (AST) levels ≥ 2 ULN (9 months and 8 months, respectively)...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28057383/reference-values-for-nucleated-red-blood-cells-and-serum-lactate-in-very-and-extremely-low-birth-weight-infants-in-the-first-week-of-life
#13
Martin Poryo, Antonia Wissing, Aylin Aygün, Jürgen Geisel, Stefan Wagenpfeil, Michael Zemlin, Sascha Meyer
STUDY PURPOSE: To provide reference values for nucleated red blood cells and serum lactate concentrations in very and extremely low birth weight (VLBW/ELBW) infants in the first week of life. PATIENTS AND METHODS: Retrospective data analysis of serial, daily measurements of NRBC counts and serum lactate during the first 6days of life in VLBW and ELBW infants. RESULTS: In total, 250 infants<1500g were included in this study. Intrauterine growth retardation (IUGR) was seen in 87 (34...
January 2, 2017: Early Human Development
https://www.readbyqxmd.com/read/28057257/have-nec-coat-will-travel-structural-basis-of-membrane-budding-during-nuclear-egress-in-herpesviruses
#14
REVIEW
J M Bigalke, E E Heldwein
Herpesviruses are unusual among enveloped viruses because they bud twice yet acquire a single envelope. Furthermore, unlike other DNA viruses that replicate in the nucleus, herpesviruses do not exit it by passing through the nuclear pores or by rupturing the nuclear envelope. Instead, herpesviruses have a complex mechanism of nuclear escape whereby nascent capsids bud at the inner nuclear membrane to form perinuclear virions that subsequently fuse with the outer nuclear membrane, releasing capsids into the cytosol...
2017: Advances in Virus Research
https://www.readbyqxmd.com/read/28056921/bifidobacterium-adolescentis-protects-against-necrotizing-enterocolitis-and-upregulates-tollip-and-sigirr-in-premature-neonatal-rats
#15
Wenshen Wu, Yanli Wang, Jingjing Zou, Fang Long, Huiheng Yan, Lijuan Zeng, Yunbin Chen
BACKGROUND: Necrotizing enterocolitis (NEC) is a serious gastrointestinal disorder that is often seen in premature infants. Probiotics decrease the risk of NEC; however, the mechanism by which probiotics work is not clear. The goal of this study was to evaluate the preventive effect of Bifidobacterium adolescentis in an NEC rat model. METHODS: Sprague-Dawley neonatal rats were obtained by caesarean section after 20-21 d gestation and randomly divided into the following 3 groups: dam fed (DF), formula fed (FF), and formula + B...
January 5, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28049278/do-demographic-characteristics-influence-the-eating-competence-of-elderly-taiwanese
#16
Kuei-I Lee, Wan-Teng Lin, Wen-Dee Chiang
BACKGROUND AND OBJECTIVES: To investigate the association between demographic characteristics and eating competence (EC), "the behaviour and attitudinal conceptualization of eating", among elderly Taiwanese. METHODS AND STUDY DESIGN: Random questionnaire survey. Overall, 564 questionnaires were analyzed, and independent t-tests, analysis of variance, chi-square tests, were used to compare the differences in the EC scores when stratified by various demographic variables...
January 2017: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28048964/variability-in-antibiotic-regimens-for-surgical-necrotizing-enterocolitis-highlights-the-need-for-new-guidelines
#17
Brian P Blackwood, Catherine J Hunter, Julia Grabowski
BACKGROUND: Necrotizing enterocolitis or NEC is the most common gastrointestinal emergency in the newborn. The etiology of NEC remains unknown, and treatment consists of antibiotic therapy and supportive care with the addition of surgical intervention as necessary. Unlike most surgical diseases, clear guidelines for the type and duration of peri-operative antibiotic therapy have not been established. Our aim was to review the antibiotic regimen(s) applied to surgical patients with NEC within a single neonatal intensive care unit (NICU) and to evaluate outcomes and help develop guidelines for antibiotic administration in this patient population...
January 3, 2017: Surgical Infections
https://www.readbyqxmd.com/read/28046187/development-of-a-gestational-age-specific-case-definition-for-neonatal-necrotizing-enterocolitis
#18
Cheryl Battersby, Nick Longford, Kate Costeloe, Neena Modi
Importance: Necrotizing enterocolitis (NEC) is a major cause of neonatal morbidity and mortality. Preventive and therapeutic research, surveillance, and quality improvement initiatives are hindered by variations in case definitions. Objective: To develop a gestational age (GA)-specific case definition for NEC. Design, Setting, and Participants: We conducted a prospective 34-month population study using clinician-recorded findings from the UK National Neonatal Research Database between December 2011 and September 2014 across all 163 neonatal units in England...
January 3, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28045982/fecal-bile-salts-and-the-development-of-necrotizing-enterocolitis-in-preterm-infants
#19
Christian V Hulzebos, Anne G J F van Zoonen, Jan B F Hulscher, Trijntje E Schat, Elisabeth M W Kooi, Martijn Koehorst, Renze Boverhof, Paul F M Krabbe, Albert K Groen, Henkjan J Verkade
BACKGROUND: Intestinal bile salts (BSs) may be implicated in NEC development. We hypothesized that fecal BS levels are higher in preterm infants at risk for NEC. METHODS: We compared the composition and concentration of fecal BSs in ten preterm infants who developed NEC (Bell's Stage ≥ II) with twenty matched control infants without NEC. Conjugated and unconjugated fecal BSs were measured after birth (T1) and twice prior to NEC (T2, T3). Data are presented as medians and interquartile ranges...
2017: PloS One
https://www.readbyqxmd.com/read/28045772/nutritional-practices-and-growth-in-premature-infants-after-surgical-necrotizing-enterocolitis
#20
Grace C Lin, Daniel T Robinson, Steven Olsen, Kristina M Reber, Mohannad Moallem, Robert DiGeronimo, Cecilia Mulroy, Ankur Datta, Karna Murthy
OBJECTIVE: To describe the nutritional provisions received by infants with surgical NEC and the associated effects on short-term growth. STUDY DESIGN: Through the Children's Hospitals Neonatal Database we identified infants born ≤32 weeks' gestation with surgical NEC from 5 regional neonatal intensive care units over 4 years. Excluded infants had isolated intestinal perforation and died <14 days post-operatively. Infants were stratified by their median parenteral protein dose (low (LP) or high (HP) protein) over the first post-operative week...
December 30, 2016: Journal of Pediatric Gastroenterology and Nutrition
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