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https://www.readbyqxmd.com/read/28315508/tumor-markers-in-pancreatic-cystic-fluids-for-diagnosis-of-malignant-cysts
#1
Alexandre Levy, Theodora Popovici, Phuong-Nhi Bories
BACKGROUND AND AIM: Early diagnosis of premalignant or malignant pancreatic cysts is essential to improve prognosis. Sampling of pancreatic cyst fluid by fine-needle aspiration during endoscopic ultrasonography (EUS) enables cytopathological examination combined with biochemical analysis. This study aimed to provide an aid based on biological markers for the preoperative management of patients with pancreatic cysts. METHODS: Pancreatic fluids obtained by EUS-guided fine-needle aspiration from 115 patients with cystic lesions were assayed for amylase, lipase, carcinoembryonic antigen (CEA), CA 19-9 and CA 72-4...
March 3, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/28302204/-a-preliminary-study-of-retinoblastoma-related-serum-tumor-markers
#2
Zhi-Ping Liu, Ke-Ying Zhou, Li-Li Chen, Zhi-Hui Xiao, Yan-Zhao Chen
OBJECTIVE: To screen out retinoblastoma (RB)-related serum tumor markers by measuring the levels of serum alpha fetoprotein (AFP), carcino-embryonic antigen (CEA), neuron-specific enolase (NSE), carbohydrate antigen 125 (CA125), carbohydrate antigen 153 (CA153), carbohydrate antigen 199 (CA199), and carbohydrate antigen 724 (CA724) in children with RB. METHODS: The levels of seven serum tumor markers (AFP, CEA, NSE, CA125, CA153, CA199, and CA724) were determined in 20 children with RB and 20 healthy children (control) using a chemiluminescent immunoassay...
March 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28297913/intermediate-scattering-function-for-macromolecules-in-solutions-probed-by-neutron-spin-echo
#3
Yun Liu
The neutron-spin-echo method (NSE) is a powerful technique for studying internal dynamics of macromolecules in solutions because it can simultaneously probe length and time scales comparable to intramolecular density fluctuations of macromolecules. Recently, there has been increased, strong interest in studying protein internal motions using NSE. The coherent intermediate scattering function (ISF) measured by NSE depends on internal, rotational, and translational motions of macromolecules in solutions. It is thus critical, but highly nontrivial, to separate the internal motion from other motions in order to properly understand protein internal dynamics...
February 2017: Physical Review. E
https://www.readbyqxmd.com/read/28296680/primitive-neuroectodermal-tumors-of-the-female-genital-tract-a-morphologic-immunohistochemical-and-molecular-study-of-19-cases
#4
Sarah Chiang, Matija Snuderl, Sakiko Kojiro-Sanada, Ariadna Quer Pi-Sunyer, Dean Daya, Tohru Hayashi, Luisanna Bosincu, Fumihiro Ogawa, Andrew E Rosenberg, Lars-Christian Horn, Lu Wang, A John Iafrate, Esther Oliva
Primary primitive neuroectodermal tumor (PNET) of the female genital tract is rare, and its proper classification remains unclear. The clinical, histologic, and immunophenotypic features as well as EWSR1 rearrangement status of 19 gynecologic PNETs, including 10 ovarian, 8 uterine, and 1 vulvar tumors, are herein reported. Patient age ranged from 12 to 68 years, with a median age of 20 and 51 years among those with ovarian and uterine PNETs, respectively. Morphologic features of central nervous system (CNS) tumors were seen in 15 PNETs, including 9 medulloblastomas, 3 ependymomas, 2 medulloepitheliomas, and 1 glioblastoma, consistent with central PNET...
March 14, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28289088/association-between-neuroendocrine-tumors-biomarkers-and-primary-tumor-site-and-disease-type-based-on-total-68-ga-dotatate-avid-tumor-volume-measurements
#5
Amit Tirosh, Georgios Z Papadakis, Corina Millo, Samira M Sadowski, Peter Herscovitch, Karel Pacak, Stephen J Marx, Lily Yang, Pavel Nockel, Jasmine Shell, Patience Green, Xavier M Keutgen, Dhaval Patel, Naris Nilubol, Electron Kebebew
OBJECTIVE: To determine the association between neuroendocrine tumor (NET) biomarker levels and the extent of disease as assessed by (68)Ga DOTATATE PET/CT imaging. DESIGN: A retrospective analysis of a prospective database of patients with NETs. METHODS: Fasting plasma chromogranin A (CgA), neuron-specific enolase (NSE), gastrin, glucagon, vasoactive intestinal peptide (VIP) and pancreatic polypeptide (PP), and 24-h urinary 5-hydroxyindoleacetic acid (5-HIAA) levels were measured...
May 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28285124/controllable-activation-of-nanoscale-dynamics-in-a-disordered-protein-alters-binding-kinetics
#6
David J E Callaway, Tsutomu Matsui, Thomas Weiss, Laura R Stingaciu, Christopher B Stanley, William T Heller, Zimei Bu
The phosphorylation of specific residues in a flexible disordered activation loop yields precise control of signal transduction. One paradigm is the phosphorylation of S339/S340 in the intrinsically disordered tail of the multi-domain scaffolding protein NHERF1, which affects the intracellular localization and trafficking of NHERF1 assembled signaling complexes. Using neutron spin echo spectroscopy (NSE), we show salt-concentration-dependent excitation of nanoscale motion at the tip of the C-terminal tail in the phosphomimic S339D/S340D mutant...
March 8, 2017: Journal of Molecular Biology
https://www.readbyqxmd.com/read/28272685/therapy-induced-neural-differentiation-in-ewing-s-sarcoma-a-case-report-and-review-of-the-literature
#7
Kıvılcım Eren Erdoğan, Mehmet Ali Deveci, Zeynep Ruken Hakkoymaz, Gülfiliz Gönlüşen
Ewing's sarcoma (ES) is a small round cell tumor of adolescents or young adults that usually arises in the deep soft tissues of the extremities. The tumor cells have uniform round nuclei, fine powdery chromatin and indistinct nucleoli. CD99 (O13) is a product of the MIC 2 gene that is highly sensitive to ES but not specific. A panel of markers should be used for the differential diagnosis of small round cell tumors because nearly all others, on occasion, show membranous staining for CD99. One of the defining feature of ES is the presence of 22q12 gene rearrangement...
February 4, 2017: Türk Patoloji Dergisi
https://www.readbyqxmd.com/read/28265494/purification-and-biochemical-characterization-of-recombinant-persicaria-minor%C3%A2-%C3%AE-sesquiphellandrene-synthase
#8
De-Sheng Ker, Sze Lei Pang, Noor Farhan Othman, Sekar Kumaran, Ee Fun Tan, Thiba Krishnan, Kok Gan Chan, Roohaida Othman, Maizom Hassan, Chyan Leong Ng
BACKGROUND: Sesquiterpenes are 15-carbon terpenes synthesized by sesquiterpene synthases using farnesyl diphosphate (FPP) as a substrate. Recently, a sesquiterpene synthase gene that encodes a 65 kDa protein was isolated from the aromatic plant Persicaria minor. Here, we report the expression, purification and characterization of recombinant P. minor sesquiterpene synthase protein (PmSTS). Insights into the catalytic active site were further provided by structural analysis guided by multiple sequence alignment...
2017: PeerJ
https://www.readbyqxmd.com/read/28257099/electrochemical-detecting-lung-cancer-associated-antigen-based-on-graphene-gold-nanocomposite
#9
Zheng Wei, Junping Zhang, Aihua Zhang, Yanchun Wang, Xiaoping Cai
Using a Au nanoparticle/reduced graphene oxide composite (AuNP-RGO), a signal-enhanced electrochemical immunosensor without label was created to detect neuron-specific enolase (NSE). Furthermore, an environmentally-friendly method was developed to prepare AuNP-RGO by employing chitosan (CS), which served as reducing and stabilizing agent. We showed that the sensitivity of the immunosensor designed in this report was remarkably enhanced because of the numerous active sites in the sensor provided by the AuNP-RGO nanostructure...
March 2, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28256118/treadmill-exercise-ameliorates-the-regulation-of-energy-metabolism-in-skeletal-muscle-of-nse-ps2m-transgenic-mice-with-alzheimer-s-disease
#10
Joon-Yong Cho, Jang-Soo Yook
Purpose: Alzheimer's disease (AD) is classified as a progressive neurological disorder, which not only causes cognitive impairment but also abnormal weight loss, with a reduction of muscle mass related to the accumulation of amyloid-β (Aβ) in skeletal muscle. Thus, we investigated the effect of treadmill exercise on Aβ deposition, and p-AMPK, p-ACC, BDNF, and GLUT4 protein levels the regulation of muscle energy metabolism using an AD mouse. Methods: At 13 months of age, NSE/PS2m mice (Tg) and control mice (non-Tg) were assigned to non-exercise control (Con) and exercise groups (Exe)...
March 2, 2017: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/28247216/antitumor-activity-of-interferon-%C3%AE-1a-in-hormone-refractory-prostate-cancer-with-neuroendocrine-differentiation
#11
A Dicitore, E S Grassi, M O Borghi, G Gelmini, M C Cantone, G Gaudenzi, L Persani, M Caraglia, G Vitale
PURPOSE: Type I interferons (IFN-α and IFN-β) are a class of cytokines that exert several biological activities, such as modulation of cell proliferation and differentiation and of the immune system. Although these cytokines interact with a common receptor complex, IFN-β showed a more potent antitumor activity than IFN-α in several tumor models. New recombinant human IFN-β products, such as IFN-β1a and IFN-β1b, have been produced in order to improve the stability and bioavailability of natural IFN-β...
March 1, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28241979/effects-of-%C3%AF-3-fatty-acids-on-stereotypical-behavior-and-social-interactions-in-wistar-rats-prenatally-exposed-to-lipopolysaccarides
#12
Jucélia Jeremias Fortunato, Naiana da Rosa, Ana Olívia Martins Laurentino, Marina Goulart, Camila Michalak, Lidiane Pinto Borges, Evandro da Cruz Cittadin Soares, Patricia Alves Reis, Hugo Caire de Castro Faria Neto, Fabrícia Petronilho
OBJECTIVE: Supplementation with ω-3 polyunsaturated fatty acids (PUFAs) can positively contribute to neurologic development, modulating inflammatory responses, promoting homeostasis, and having a positive effect on animal behaviors associated with mental disorders. The aim of this study was to evaluate behavioral and biochemical effects of ω-3 fatty acid supplementation in an animal model for mental disorders by prenatal maternal exposure to lipopolysaccardies (LPS) from the maternal immune activation...
March 2017: Nutrition
https://www.readbyqxmd.com/read/28241699/-effects-of-ginaton-on-nitric-oxide-and-nitric-oxide-synthase-in-patients-with-delayed-encephalopathy-after-carbon-monoxide-poisoning
#13
W Z Wang, H N Qi, Q M Xiao, X Gao, B Y Zhu, J Li, Y J Liu, W Li, G Y Ma, P Wang
Objective: To observe the effects of Ginaton on blood nitric oxide (NO) and nitric oxide synthase (NOS) in patients with delayed encephalopathy after acute carbon monoxide poisoning (DEACMP). Methods: A total of 116 patients with DEACMP who were treated in Emergency Department of Harrison International Peace Hospital Affiliated to Hebei Medical University from January 2012 to April 2016 were enrolled and ran-domly divided into control group and treatment group using a random number table, with 58 patients in each group...
January 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/28240844/diagnostic-value-of-neuron-specific-enolase-nse-and-cancer-antigen-15-3-ca-15-3-in-the-diagnosis-of-pleural-effusions
#14
Mohammad Ali Saba, Toraj Valeh, Hasan Ehteram, Hamed Haddad Kashani, Mahdiyeh Ghazi Zahedi
Introduction: Pleural effusion diagnosis plays an important role in determining treatment strategies. The aim of this study was to determine the diagnostic capacity of tumor markers CA 15-3 and NSE solely or in combination in differentiating the nature of pleural fluid. Methods and Materials: In this cross-sectional study we evaluated 93 patients with pleural effusions (44 malignant and 49 benign). NSE and CA 15-3 serum and pleural levels were measured simultaneously using immunoenzyme assay kits. Diagnosis was established on the basis of cytological study...
January 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28240720/role-of-mir-122-5p-negatively-regulating-t-box-brain-1-expression-on-the-differentiation-of-mouse-bone-mesenchymal-stem-cells
#15
Yu Yang, Zhaoliang Shen, Wei Sun, Shuang Gao, Yuanlong Li, Yue Guo
To achieve neuronal differentiation of mouse bone mesenchymal stem cells (bMSCs) into neuron-like cells and explore the role of miR-122-5p that may regulate T-box brain 1 (Tbr1) expression during the induction. BMSCs were cultured and induced with butylated hydroxyanisole, retinoic acid (RA), basic fibroblast growth factor, and nerve growth factor in vitro. The cells were stained for neuron-specific enolase (NSE) and β-III-tubulin by immunocytochemistry/immunofluorescence. MiR-122-5p that may regulate Tbr1 expression was predicted by bioinformatics and identified using a Dual-Luciferase assay...
February 24, 2017: Neuroreport
https://www.readbyqxmd.com/read/28236069/cerebrospinal-fluid-neuron-specific-enolase-interleukin-1%C3%AE-and-erythropoietin-concentrations-in-children-after-seizures
#16
Ling-Min Shi, Rui-Jie Chen, Hui Zhang, Chun-Ming Jiang, Jian Gong
PURPOSE: In the present study, the levels of neuron-specific enolase (NSE), interleukin-1β (IL-1β), and erythropoietin (EPO) in cerebrospinal fluid (CSF) in children with idiopathic epilepsy were measured to illuminate the relationships between these markers with idiopathic epilepsy. METHODS: Eighty-five children from 6 months to 12.5 years of age with single, previously undiagnosed, and untreated idiopathic epilepsy were participated in this study. The concentrations of CSF NSE, 1L-1β, and EPO were measured by specific ELISA methods...
February 24, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28229299/history-molecular-features-and-clinical-importance-of-conventional-serum-biomarkers-in-lung-cancer
#17
REVIEW
Haruhiko Nakamura, Toshihide Nishimura
Serum biomarkers provide valuable information about the diagnosis and prognosis of a wide variety of malignant tumors. Despite the identification of several useful serum biomarkers in lung cancer, consensus on their utility has not yet been reached. Furthermore, guidelines and standard protocols to implement their use for patients with lung cancer are lacking, despite the accumulation of much data on the efficacy of several serum biomarkers over recent decades. In this review, we discuss the molecular features, functions, and clinical relevance of the conventional serum biomarkers for lung cancer, including carcinoembryonic antigen (CEA), cytokeratin 19 fragment 21-1 (CYFRA 21-1), tissue polypeptide antigen (TPA), carbohydrate antigen 19-9 (CA19-9), sialyl Lewis(x) (sLe(x)), carbohydrate antigen 125 (CA-125), squamous cell carcinoma-related antigen (SCC-Ag), neuron-specific enolase (NSE), and pro-gastrin-releasing peptide (proGRP), aiming to provide a snapshot of the current landscape and their potential combined utility in the diagnosis and prognosis of lung cancer...
February 22, 2017: Surgery Today
https://www.readbyqxmd.com/read/28223258/the-neurologic-protection-of-unilateral-versus-bilateral-antegrade-cerebral-perfusion-in-aortic-arch-surgery-with-deep-hypothermic-circulatory-arrest-a-study-of-77-cases
#18
Bowen Li, Xiaoping Hu, Zhiwei Wang
BACKGROUD: Unilateral and bilateral antegrade cerebral perfusions (ACP) are recognized methods of cerebral protection in aortic arch surgery. However, the adequacy of cerebral protection in aortic arch surgery with deep hypothermic circulatory arrest is controversial. In this study, we compared unilateral and bilateral ACP of cerebral protection in aortic arch surgery by assessing the patient's intraoperative and postoperative brain function. METHODS: A total of 77 patients undergoing aortic arch surgery were included in this study...
February 20, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28220397/neuron-specific-enolase-levels-as-a-marker-for-possible-neuronal-damage-in-idiopathic-intracranial-hypertension
#19
Yavuz Samancı, Bedia Samancı, Erdi Şahin, Güneş Altıokka-Uzun, Cem İsmail Küçükali, Erdem Tüzün, Betül Baykan
Although formerly considered as a "benign" disease, the presence of some important problems such as vision loss, resistance to appropriate medical treatment and relapses suggests that neuronal damage might play a role in the pathophysiology of IIH. In order to demonstrate possible neuronal damage/dysfunction participating in IIH pathophysiology, we aimed to investigate the relationship between serum neuron-specific enolase (NSE) levels and clinical features in patients with idiopathic intracranial hypertension (IIH)...
February 20, 2017: Acta Neurologica Belgica
https://www.readbyqxmd.com/read/28217890/cerebellar-hemangioblastoma-with-perivascular-pseudorosette-formation-and-glial-differentiation-a-case-report
#20
Jian Wang, Xu-Yong Lin, Xue-Shan Qiu, En-Hua Wang, Lian-He Yang, Juan-Han Yu
Hemangioblastoma is a well-circumscribed, highly vascular, lipid-rich and low-grade tumor of uncertain histogenesis. Its histopathological features have been well established. Herein, we present a case of cerebellar hemangioblastoma in a 43-year-old woman. Histologically, the tumor was predominantly composed of cellular areas showing eosinophilic or vacuolated stromal cells arranged in nests and sheets. Focally, conventional reticular areas could be seen. Additionally, in some areas, the stromal cells were arranged radially around blood vessels, exhibiting perivascular pseudorosette structures, which were similar mostly to those of ependymomas...
August 24, 2016: Neuropathology: Official Journal of the Japanese Society of Neuropathology
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