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https://www.readbyqxmd.com/read/29352082/clostridial-strain-specific-characteristics-associated-with-necrotizing-enterocolitis
#1
Sophia Schönherr-Hellec, Geraldine L Klein, Johanne Delannoy, Laurent Ferraris, Jean Christophe Rozé, Marie José Butel, Julio Aires
We aimed at identifying potential clostridial factors linking these bacteria with necrotizing enterocolitis (NEC). We compared the phenotypic traits, stress responses, cellular cytotoxicity and inflammatory capabilities of the largest collection of Clostridium butyricum and Clostridium neonatale strains isolated from fecal samples of NEC and control preterm neonates (PN). When strains characteristics were used as explanatory variables, a statistical discriminant analysis allowed the separation of NEC and control strains into separate groups...
January 19, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29351876/vital-signs-analysis-algorithm-detects-inflammatory-response-in-premature-infants-with-late-onset-sepsis-and-necrotizing-enterocolitis
#2
Leena B Mithal, Ram Yogev, Hannah L Palac, Daniel Kaminsky, Ilan Gur, Karen K Mestan
BACKGROUND: Nonspecific clinical signs and suboptimal diagnostic tests limit accurate identification of late onset sepsis (LOS) and necrotizing enterocolitis (NEC) in premature infants, resulting in significant morbidity and antibiotic overuse. An infant's systemic inflammatory response may be identified earlier than clinical suspicion through analysis of multiple vital signs by a computerized algorithm (RALIS). AIM: To evaluate the revised RALIS algorithm for detection of LOS and NEC in preterm infants...
January 16, 2018: Early Human Development
https://www.readbyqxmd.com/read/29345159/weighing-in-on-the-risks-and-benefits-of-probiotic-use-in-hiv-infected-and-immunocompromised-populations
#3
A U Happel, S L Barnabas, R Froissart, J S Passmore
Probiotics are used in the prophylaxis and treatment of several conditions, including irritable bowel syndrome, diarrhoea, necrotising enterocolitis (NEC) and colic in infants. Despite the long history of probiotic use in humans, there is still significant debate about their efficacy and safety, particularly in HIV-infected and immunocompromised individuals. Here, we reviewed the safety and adverse event (AE) reporting from clinical trials that have tested probiotics in at risk populations, including HIV-infected individuals, the terminally ill and elderly, and neonates...
January 18, 2018: Beneficial Microbes
https://www.readbyqxmd.com/read/29342872/human-cytomegalovirus-nuclear-capsids-associate-with-the-core-nuclear-egress-complex-and-the-viral-protein-kinase-pul97
#4
Jens Milbradt, Eric Sonntag, Sabrina Wagner, Hanife Strojan, Christina Wangen, Tihana Lenac Rovis, Berislav Lisnic, Stipan Jonjic, Heinrich Sticht, William J Britt, Ursula Schlötzer-Schrehardt, Manfred Marschall
The nuclear phase of herpesvirus replication is regulated through the formation of regulatory multi-component protein complexes. Viral genomic replication is followed by nuclear capsid assembly, DNA encapsidation and nuclear egress. The latter has been studied intensely pointing to the formation of a viral core nuclear egress complex (NEC) that recruits a multimeric assembly of viral and cellular factors for the reorganization of the nuclear envelope. To date, the mechanism of the association of human cytomegalovirus (HCMV) capsids with the NEC, which in turn initiates the specific steps of nuclear capsid budding, remains undefined...
January 13, 2018: Viruses
https://www.readbyqxmd.com/read/29340724/the-role-of-surgery-in-treating-resectable-limited-disease-of-esophageal-neuroendocrine-carcinoma
#5
Han-Yu Deng, Gang Li, Jun Luo, Xin-Rui Li, Guha Alai, Yi-Dan Lin
BACKGROUND: Esophageal neuroendocrine carcinoma (NEC) is a rare malignant tumor. The role of surgery in resectable limited disease of esophageal NEC remains unclear. How to select a specific group of limited disease of esophageal NEC who might benefit from surgery remains to be answered. METHODS: Patients undergoing esophagectomy for resectable limited disease of esophageal NEC in our department from January 2007 to June 2015 were analyzed. TNM staging system was applied to describe those patients, and according to their different long-term prognosis after surgery, those patients were subgrouped into surgery response limited disease (SRLD) group and surgery non-response limited disease (SNRLD) group...
January 16, 2018: World Journal of Surgery
https://www.readbyqxmd.com/read/29338840/hydrogen-sulfide-provides-intestinal-protection-during-a-murine-model-of-experimental-necrotizing-enterocolitis
#6
Natalie A Drucker, Amanda R Jensen, Michael Ferkowicz, Troy A Markel
BACKGROUND: Necrotizing enterocolitis (NEC) continues to be a morbid surgical condition among preterm infants. Novel therapies for this condition are desperately needed. Hydrogen sulfide (H2S) is an endogenous gasotransmitter that has been found to have beneficial properties. We therefore hypothesized that intraperitoneal injection of various H2S donors would improve clinical outcomes, increase intestinal perfusion, and reduce intestinal injury in an experimental mouse model of necrotizing enterocolitis...
December 24, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/29337003/mouse-lung-fibroblasts-are-highly-susceptible-to-necroptosis-in-a-reactive-oxygen-species-dependent-manner
#7
Muadh Hussain, Vanessa Zimmermann, Sjoerd J L van Wijk, Simone Fulda
Mouse embryonic fibroblasts (MEFs) have extensively been used to study necroptosis, a recently identified form of programmed cell death. However, very little is yet known about the role of necroptosis and its regulation by reactive oxygen species (ROS) in cell types naturally exposed to high oxygen levels such as mouse lung fibroblasts (MLFs). Here, we discover that MLFs are highly susceptible to undergo necroptosis in a ROS-dependent manner upon exposure to a prototypic death receptor-mediated necroptotic stimulus, i...
January 11, 2018: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29334374/transitory-presence-of-myeloid-derived-suppressor-cells-in-neonates-is-critical-for-control-of-inflammation
#8
Yu-Mei He, Xing Li, Michela Perego, Yulia Nefedova, Andrew V Kossenkov, Erik A Jensen, Valerian Kagan, Yu-Feng Liu, Shu-Yu Fu, Qing-Jian Ye, Yan-Hong Zhou, Lai Wei, Dmitry I Gabrilovich, Jie Zhou
Myeloid-derived suppressor cells (MDSCs) are pathologically activated and relatively immature myeloid cells that have been implicated in the immunological regulation of many pathologic conditions. Phenotypically and morphologically, MDSCs are similar to neutrophils (PMN-MDSCs) and monocytes (M-MDSCs). However, they have potent suppressive activity and distinct gene expression profiles and biochemical characteristics. No or very few MDSCs are observed in steady-state physiological conditions. Therefore, until recently, accumulation of MDSCs was considered a consequence of pathological processes or pregnancy...
January 15, 2018: Nature Medicine
https://www.readbyqxmd.com/read/29333220/outcomes-of-left-ventricular-function-according-to-treatment-response-for-a-patent-ductus-arteriosus-in-preterm-infants
#9
Soo Jung Kang, Young Sun Cho, Seo Jung Hwang, Hyo Jin Kim
Background: To evaluate the outcomes of left ventricular (LV) function according to treatment response for a hemodynamically significant patent ductus arteriosus (hsPDA) in preterm infants. Methods: Echocardiograms of 21 preterm infants born at gestational age < 31 weeks obtained at term-equivalent age were retrospectively studied. Among preterm infants with a hsPDA, 9 underwent ligation after failure of pharmacological closure (ligation group) and 6 experienced successful pharmacological closure (medication group)...
December 2017: Journal of Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/29330208/neuroendocrine-tumor-heterogeneity-adds-uncertainty-to-the-world-health-organization-2010-classification-real-world-data-from-the-spanish-tumor-registry-r-getne
#10
Barbara Nuñez-Valdovinos, Alberto Carmona-Bayonas, Paula Jimenez-Fonseca, Jaume Capdevila, Ángel Castaño-Pascual, Marta Benavent, Jose Javier Pi Barrio, Alex Teule, Vicente Alonso, Ana Custodio, Monica Marazuela, Ángel Segura, Adolfo Beguiristain, Marta Llanos, Maria Purificacion Martinez Del Prado, Jose Angel Diaz-Perez, Daniel Castellano, Isabel Sevilla, Carlos Lopez, Teresa Alonso, Rocio Garcia-Carbonero
BACKGROUND: Gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs) are a complex family of tumors of widely variable clinical behavior. The World Health Organization (WHO) 2010 classification provided a valuable tool to stratify neuroendocrine neoplasms (NENs) in three prognostic subgroups based on the proliferation index. However, substantial heterogeneity remains within these subgroups, and simplicity sometimes entails an ambiguous and imprecise prognostic stratification. The purpose of our study was to evaluate the prognostic impact of histological differentiation within the WHO 2010 grade (G) 1/G2/G3 categories, and explore additional Ki-67 cutoff values in GEP-NENs...
January 12, 2018: Oncologist
https://www.readbyqxmd.com/read/29317459/incidence-of-neonatal-necrotising-enterocolitis-in-high-income-countries-a-systematic-review
#11
REVIEW
Cheryl Battersby, Tharsika Santhalingam, Kate Costeloe, Neena Modi
OBJECTIVE: To conduct a systematic review of neonatal necrotising enterocolitis (NEC) rates in high-income countries published in peer-reviewed journals. METHODS: We searched MEDLINE, Embase and PubMed databases for observational studies published in peer-reviewed journals. We selected studies reporting national, regional or multicentre rates of NEC in 34 Organisation for Economic Co-operation and Development countries. Two investigators independently screened studies against predetermined criteria...
January 9, 2018: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/29311572/correlative-factors-of-the-deterioration-of-necrotizing-enterocolitis-in-small-for-gestational-age-newborns
#12
Lijuan Luo, Wenbin Dong, Lingping Zhang, Xuesong Zhai, Qingping Li, Xiaoping Lei
Small for gestational age (SGA) infants have an increased risk of necrotizing enterocolitis (NEC), but SGA has been found to not be a risk factor for the deterioration of NEC in previous literature. Few studies have focused on correlative factors of the progression of NEC in SGA newborns. The present retrospective observational study was performed in 64 SGA infants with Bell's stage II NEC. The dependent variable was Bell's stage II NEC that progressed to stage III after diagnosis. A stepwise forward multivariate logistic regression model was used to select potential correlative factors for the progression of NEC in SGA newborns...
January 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29307515/clinical-outcome-and-long-term-survival-of-150%C3%A2-consecutive-patients-with-pancreatic-neuroendocrine-tumors-a-comprehensive-analysis-by-the-world-health-organization-2010-grading-classification
#13
Ben-Yuan Deng, Fei Liu, Si-Neng Yin, An-Ping Chen, Lin Xu, Bo Li
BACKGROUND AND OBJECTIVE: The World Health Organization (WHO) has revised its grading system for pancreatic neuroendocrine tumors (PNETs) in 2010 into three main group, which has not been widely and comprehensively evaluated. We aimed to validate the clinical valve of this system associated with the clinical outcome and long-term survival when applied to PNETs, which were rare and heterogeneous. METHODS: We retrospectively collected and analyzed the data of 150 consecutive patients with PNETs who underwent a resection...
January 4, 2018: Clinics and Research in Hepatology and Gastroenterology
https://www.readbyqxmd.com/read/29302839/in-vitro-exposure-of-nasal-epithelial-cells-to-atmospheric-dust
#14
David Elad, Uri Zaretsky, Sharon Avraham, Ruthie Gotlieb, Michael Wolf, Itzhak Katra, Shlomo Sarig, Eli Zaady
Dust storms are common phenomena in many parts of the world, and significantly increase the level of atmospheric particulate matter (PM). The soil-derived dust is a mixture of organic and inorganic particles and even remnants of pesticides from agricultural areas nearby. The risk of human exposure to atmospheric dust is well documented, but very little is known on the impact of inhaled PM on the biological lining of the nasal cavity, which is the natural filter between the external environment and the respiratory tract...
January 4, 2018: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/29300196/mesenteric-oxygenation-changes-associated-with-necrotizing-enterocolitis-and-pneumoperitoneum-after-multiple-blood-transfusions-a-case-report
#15
Terri Marin, James E Moore
BACKGROUND: The multifactorial pathology and broad clinical presentation of necrotizing enterocolitis (NEC) development in premature infants make prediction of disease onset extremely challenging. Over the past decade, packed red blood cell (PRBC) transfusions have been temporally linked to the development of NEC in severely anemic preterm infants, although this issue is highly controversial. PURPOSE: In this case study, we describe events of an extremely low birth-weight infant who developed NEC complicated by pneumoperitoneum after receiving multiple PRBC transfusions...
January 3, 2018: Advances in Neonatal Care: Official Journal of the National Association of Neonatal Nurses
https://www.readbyqxmd.com/read/29299822/necrostatin-1-protects-against-paraquat-induced-cardiac-contractile-dysfunction-via-rip1-rip3-mlkl-dependent-necroptosis-pathway
#16
Liping Zhang, Qiming Feng, Teng Wang
Paraquat is a highly toxic prooxidant that triggers oxidative stress and multi-organ failure including that of the heart. To date, effective treatment of paraquat toxicity is still not established. Necroptosis, a newly discovered form of programmed cell death, was recently shown to be strongly associated with cardiovascular disease. Receptor interaction proteins 1 (RIP1), receptor interaction proteins 3 (RIP3), and mixed lineage kinase domain like (MLKL) are key proteins in the necroptosis pathway. Necrostatin-1 (Nec-1) is a specific inhibitor of necroptosis which acts by blocking the interaction between RIP1 and RIP3...
January 3, 2018: Cardiovascular Toxicology
https://www.readbyqxmd.com/read/29298718/s737f-is-a-new-cftr-mutation-typical-of-patients-originally-from-the-tuscany-region-in-italy
#17
Vito Terlizzi, Antonella Miriam Di Lullo, Marika Comegna, Claudia Centrone, Elisabetta Pelo, Giuseppe Castaldo, Valeria Raia, Cesare Braggion
BACKGROUND: An increasing number of patients have been described as having a number of Cystic Fibrosis Transmembrane conductance Regulator (CFTR) variants for which it lacks a clear genotype-phenotype correlation. We assesses the clinical features of patients bearing the S737F (p.Ser737Phe) CFTR missense variant and evaluated the residual function of CFTR protein on nasal epithelial cells (NEC). METHODS: A retrospective database was performed from individuals homozygous or compound heterozygous for the S737F variant followed in the Cystic Fibrosis (CF) Centre of Florence...
January 3, 2018: Italian Journal of Pediatrics
https://www.readbyqxmd.com/read/29298457/predictive-value-of-a-persistent-tachycardia-to-indicate-impending-perforation-in-necrotizing-enterocolitis
#18
Francisca van der Schyff, Jan Henrik Raynor Becker
INTRODUCTION:  Necrotizing enterocolitis (NEC) is a devastating disease of infancy. Full-thickness bowel wall necrosis may lead to perforation, peritonitis, and death. Timeous clinical diagnosis of impending perforation is imperative. OBJECTIVE:  The objective of this study was to determine whether a persistent tachycardia in an infant with proven NEC is indicative of full-thickness bowel wall necrosis and therefore impending perforation. STUDY DESIGN:  This study was conducted at the University of Pretoria academic hospitals...
January 3, 2018: American Journal of Perinatology
https://www.readbyqxmd.com/read/29298438/influence-of-pco2-control-on-clinical-and-neurodevelopmental-outcomes-of-extremely-low-birth-weight-infants
#19
Ulrich H Thome, Jens Dreyhaupt, Orsolya Genzel-Boroviczeny, Bettina Bohnhorst, Manuel Schmid, Hans Fuchs, Oliver Rohde, Stefan Avenarius, Hans-Georg Topf, Andrea Zimmermann, Dirk Faas, Katharina Timme, Barbara Kleinlein, Horst Buxmann, Wilfried Schenk, Hugo Segerer, Norbert Teig, Benjamin Ackermann, Roland Hentschel, Matthias Heckmann, Rolf Schlösser, Jochen Peters, Rainer Rossi, Wolfgang Rascher, Ralf Böttger, Jürgen Seidenberg, Gesine Hansen, Harald Bode, Maria Zernickel, Rainer Muche, Helmut D Hummler
BACKGROUND: Levels or fluctuations in the partial pressure of CO2 (PCO2) may affect outcomes for extremely low birth weight infants. OBJECTIVES: In an exploratory analysis of a randomized trial, we hypothesized that the PCO2 values achieved could be related to significant outcomes. METHODS: On each treatment day, infants were divided into 4 groups: relative hypocapnia, normocapnia, hypercapnia, or fluctuating PCO2. Ultimate assignment to a group for the purpose of this analysis was made according to the group in which an infant spent the most days...
January 4, 2018: Neonatology
https://www.readbyqxmd.com/read/29287706/toxicities-safeties-and-clinical-response-of-dacarbazine-based-chemotherapy-on-neuroendocrine-tumors-in-taiwan-population
#20
Hwa-Yen Chiu, Liang-Yu Lin, Wen-Chi Chou, Wen-Liang Fang, Yi-Ming Shyr, Yi-Chen Yeh, Peter Mu-Hsin Chang, Ming-Han Chen, Yi-Ping Hung, Yee Chao, Sheng-Hsuan Chien, Ming-Huang Chen
BACKGROUND: Currently, the role of dacarbazine (DTIC) based chemotherapy in neuroendocrine tumors (NETs) in Asia is unclear. Here, we report the outcomes of dacarbazine (DTIC)-based chemotherapy in Taiwan population. METHODS: DTIC alone (250 mg/m2/day), or 5-fluorouracil (5-FU, 500 mg/m2/day) and DTIC (200 mg/m2/day) with or without epirubicin (200 mg/m2/day), for 3 days, every 3-4 weeks. Subgroups were analyzed by grading, and by Ki-67 index. RESULTS: 48 patients were reviewed in this study, including 3 had grade 1 tumors, 23 had grade 2, while 22 were grade 3...
December 26, 2017: Journal of the Chinese Medical Association: JCMA
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