نتایج جستجو برای: nec

تعداد نتایج: 3186  

2010
Laure Dix Matthias Roth-Kleiner Maria-Chiara Osterheld

Necrotizing enterocolitis (NEC) is a severe neonatal disease affecting particularly preterm infants. Its exact pathogenesis still remains unknown. In this study, we have compared the prevalence of vascular obstructive lesions in placentae of premature newborns which developed NEC and of a control group. We further compared separately the findings of placentae of infants of less than 30 weeks of...

2015
Ashanti L. Franklin Mariam Said Clint D. Cappiello Heather Gordish-Dressman Zohreh Tatari-Calderone Stanislav Vukmanovic Khodayar Rais-Bahrami Naomi L. C. Luban Joseph M. Devaney Anthony D. Sandler

Necrotizing enterocolitis (NEC) is a devastating gastrointestinal emergency. The purpose of this study is to determine if functional single nucleotide polymorphisms (SNPs) in immune-modulating genes pre-dispose infants to NEC. After Institutional Review Board approval and parental consent, buccal swabs were collected for DNA extraction. TaqMan allelic discrimination assays and BglII endonucleas...

Journal: :American journal of physiology. Gastrointestinal and liver physiology 2014
Misty Good Chhinder P Sodhi John A Ozolek Rachael H Buck Karen C Goehring Debra L Thomas Amit Vikram Kyle Bibby Michael J Morowitz Brian Firek Peng Lu David J Hackam

Necrotizing enterocolitis (NEC) is the leading cause of death from gastrointestinal disease in premature infants and develops partly from an exaggerated intestinal epithelial immune response to indigenous microbes. There has been interest in administering probiotic bacteria to reduce NEC severity, yet concerns exist regarding infection risk. Mechanisms of probiotic activity in NEC are unknown a...

Journal: :European Physical Journal C 2022

Abstract Null energy condition (NEC) is revisited in the context of thin-shell wormholes (TSW). In a generic spherically symmetric configuration we introduce upon which NEC satisfied. Also, present general specifies stability TSW against radial linear perturbation. Furthermore, specific bulk metric framework gravity coupled minimally with nonlinear electrodynamics such that corresponding satisf...

Journal: :Acta Medica 2021

Introduction: Gastric acidity plays an important role in the protection of infants against various pathogens from environment. The histamine-2 receptor blockers (H2-blockers) are off-labeled drugs that frequently prescribed preterm neonates to prevent stress ulcers. impact H2-blockers on development necrotizing enterocolitis (NEC) is still controversial, particularly developing world. Materials...

Journal: :The American journal of surgical pathology 2008
Dipen M Maru Hema Khurana Asif Rashid Arlene M Correa Sharmila Anandasabapathy Sunil Krishnan Ritsuko Komaki Jaffer A Ajani Stephen G Swisher Wayne L Hofstetter

Clinicopathologic features of esophageal neuroendocrine carcinoma (NEC), apart from those of small-cell carcinoma, have not been characterized. We evaluated the clinicopathologic features and prognosis including overall survival of NEC of the esophagus. We identified 40 patients with esophageal NEC from our institutional database. All cancers had been clinically staged using endoscopic ultrason...

Journal: :pädiatrie: Kinder- und Jugendmedizin hautnah 2011

2012
Weidong Han Jiansheng Xie Yong Fang Zhanggui Wang Hongming Pan

Necrostatin-1 (Nec-1) inhibits necroptosis by allosterically inhibiting the kinase activity of receptor-interacting protein 1 (RIP1), which plays a critical role in necroptosis. RIP1 is a crucial adaptor kinase involved in the activation of NF-κB, production of reactive oxygen species (ROS) and the phosphorylation of mitogen activated protein kinases (MAPKs). NF-κB, ROS and MAPKs all play impor...

2009
Alan H. Guth Tanmay Vachaspati Serge Winitzki

We show that the eternal inflation scenario requires violations of the Null Energy Condition (NEC) in de Sitter space. Within the context of semiclassical gravity, NEC violations are absent if the quantum state of fields is assumed to be de Sitter invariant since the expectation value of the “quantum NEC operator” vanishes. We then discuss the necessity of defining a smeared NEC operator. We fi...

Journal: :International journal of clinical and experimental pathology 2014
Jun Ding Ping Sun Xiao-Yan Cai Shao-Hua Fei Jian Wu Yu-Kai Qi Ze-Bin Liu Lin Yuan Yu-Jie He Hui Song Wei-Xiang Chen

Although the stomach is the most common location for gastrointestinal stromal tumor (GIST) with co-primary tumors, the synchronous appearance of a poorly differentiated neuroendocrine carcinoma (NEC) and GIST in the stomach is extremely rare. To the best of our knowledge, this is the first case of gastric GIST coexisting with gastric NEC to be reported in the literature. The current study repor...

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