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https://www.readbyqxmd.com/read/28526280/an-overview-of-medical-risk-factors-for-childhood-psychosis-implications-for-research-and-treatment
#1
REVIEW
Marianna Giannitelli, Angèle Consoli, Marie Raffin, Renaud Jardri, Douglas F Levinson, David Cohen, Claudine Laurent-Levinson
OBJECTIVE: Psychotic disorders in childhood and early adolescence often progress to chronic schizophrenia, but in many cases there are diagnosable medical and genetic causes or risk factors. We reviewed our clinical experience and the relevant literature to identify these factors and to define their clinical features, appropriate work-up and treatment. METHOD: We reviewed the results of comprehensive medical evaluations of 160 psychotic children and adolescents in our center...
May 16, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28524257/the-efficacy-of-early-language-intervention-in-mainstream-school-settings-a-randomized-controlled-trial
#2
Silke Fricke, Kelly Burgoyne, Claudine Bowyer-Crane, Maria Kyriacou, Alexandra Zosimidou, Liam Maxwell, Arne Lervåg, Margaret J Snowling, Charles Hulme
BACKGROUND: Oral language skills are a critical foundation for literacy and more generally for educational success. The current study shows that oral language skills can be improved by providing suitable additional help to children with language difficulties in the early stages of formal education. METHODS: We conducted a randomized controlled trial with 394 children in England, comparing a 30-week oral language intervention programme starting in nursery (N = 132) with a 20-week version of the same programme starting in Reception (N = 133)...
May 19, 2017: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/28523565/blood-brain-barrier-permeability-is-exacerbated-in-experimental-model-of-hepatic-encephalopathy-via-mmp-9-activation-and-downregulation-of-tight-junction-proteins
#3
Saurabh Dhanda, Rajat Sandhir
The present study was designed to investigate the mechanisms involved in blood-brain barrier (BBB) permeability in bile duct ligation (BDL) model of chronic hepatic encephalopathy (HE). Four weeks after BDL surgery, a significant increase was observed in serum bilirubin levels. Masson trichrome staining revealed severe hepatic fibrosis in the BDL rats. (99m)Tc-mebrofenin retention was increased in the liver of BDL rats suggesting impaired hepatobiliary transport. An increase in permeability to sodium fluorescein, Evans blue, and fluorescein isothiocyanate (FITC)-dextran along with increase in water and electrolyte content was observed in brain regions of BDL rats suggesting disrupted BBB...
May 18, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28522609/coagulation-factor-viia-mediated-protease-activated-receptor-2-activation-leads-to-%C3%AE-catenin-accumulation-via-the-akt-gsk3%C3%AE-pathway-and-contributes-to-breast-cancer-progression
#4
Abhishek Roy, Shabbir A Ansari, Kaushik Das, Ramesh Prasad, Anindita Bhattacharya, Suman Mallik, Asis Mukherjee, Prosenjit Sen
Cell migration and invasion are very characteristic features of cancer cells that promote metastasis, which is one of the most vulnerable causes of mortality among cancer patients. Emerging evidence has shown that coagulation factors can directly mediate cancer associated complications either by enhancing thrombus formation or by initiating various signaling events leading to metastatic cancer progression. It is well-established that apart from its distinct role in blood coagulation, coagulation factor FVIIa enhances aggressive behaviors of breast cancer cells, but the underlying signaling mechanisms still remain elusive...
May 18, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28512723/low-dose-dual-isotope-procedure-planed-for-myocardial-perfusion-czt-spect-and-assessed-through-a-head-to-head-comparison-with-a-conventional-single-isotope-protocol
#5
Laetitia Imbert, Véronique Roch, Charles Merlin, Wassila Djaballah, Florent Cachin, Mathieu Perrin, Marine Claudin, Antoine Verger, Henri Boutley, Gilles Karcher, Pierre-Yves Marie
PURPOSE OF THE REPORT: This study aimed at assessing an original low-dose dual-isotope procedure in which the abnormal stress Tc-99m Sestamibi SPECT is followed by rest Tl-201 SPECT, along with a head-to-head comparison with a single-isotope procedure. METHODS AND RESULTS: One hundred two patients, referred for a low-dose stress-SPECT with Sestamibi (123 ± 20 MBq) on a CZT camera and for whom a rest Sestamibi SPECT was warranted, had an additional Tl-201 rest-SPECT (52 ± 5 MBq) between stress and rest Sestamibi SPECT recordings...
May 16, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28512445/the-therapeutic-value-of-bone-marrow-derived-endothelial-progenitor-cell-transplantation-after-intracerebral-hemorrhage-in-rats
#6
Rui Zhang, Jing Yang, Jingjing Yuan, Bo Song, Yan Wang, Yuming Xu
AIMS: To study the effect of endothelial progenitor cell (EPC) treatment on intracerebral hemorrhage (ICH) in rats and elucidate possible mechanisms. METHODS: The rats were randomly divided into three groups: (1) EPC group: ICH + EPC, (2) phosphate-buffered saline group: ICH + PBS, and (3) sham group. EPCs were transplanted intravenously 6 h after ICH. Modified neurological severity score was used to evaluate neurological function. Blood-brain barrier (BBB) integrity was evaluated...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28505628/markers-of-intestinal-damage-and-their-relation-to-cytokine-levels-in-cardiac-surgery-patients
#7
Quirine L M Habes, Vera Linssen, Suzan Nooijen, Dorien Kiers, Jelle Gerretsen, Peter Pickkers, Gert Jan Scheffer, Matthijs Kox
OBJECTIVES: In patients undergoing cardiac surgery, both extracorporeal circulation (ECC) and intraoperative mesenterial hypoperfusion may account for increased cytokine levels and lead to postoperative gastrointestinal (GI) symptoms. METHODS: We investigated levels of the intestinal damage markers intestinal fatty acid binding protein (I-FABP in plasma [n = 72] and urine [n = 37]), citrulline (in plasma [n = 35]), and claudin-3 (in urine [n = 37]) in patients undergoing aortic or mitral valve surgery with or without coronary artery bypass grafting...
June 2017: Shock
https://www.readbyqxmd.com/read/28505395/claudin-peptidomimetics-modulate-tissue-barriers-for-enhanced-drug-delivery
#8
Sophie Dithmer, Christian Staat, Carolin Müller, Min-Chi Ku, Andreas Pohlmann, Thoralf Niendorf, Nora Gehne, Petra Fallier-Becker, Ágnes Kittel, Fruzsina R Walter, Szilvia Veszelka, Maria A Deli, Rosel Blasig, Reiner F Haseloff, Ingolf E Blasig, Lars Winkler
The blood-brain barrier (BBB) formed by the microvascular endothelium limits cerebral drug delivery. The paraendothelial cleft is sealed by tight junctions (TJs) with a major contribution from claudin-5, which we selected as a target to modulate BBB permeability. For this purpose, drug-enhancer peptides were designed based on the first extracellular loop (ECL) of claudin-5 to allow transient BBB permeabilization. Peptidomimetics (C5C2 and derivatives, nanomolar affinity to claudin-5) size-selectively (≤40 kDa) and reversibly (12-48 h) increased the permeability of brain endothelial and claudin-5-transfected epithelial cell monolayers...
May 15, 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28504618/butyrate-reduces-high-fat-diet-induced-metabolic-alterations-hepatic-steatosis-and-pancreatic-beta-cell-and-intestinal-barrier-dysfunctions-in-prediabetic-mice
#9
V A Matheus, Lcs Monteiro, R B Oliveira, D A Maschio, C B Collares-Buzato
In this study, we investigated the effect of diet supplementation with sodium butyrate (5% w/w), a short-chain fatty acid produced by the intestinal microbiota, on metabolic parameters, body adiposity, hepatic and pancreatic lipid accumulation, beta cell function/mass as well as on the structure and function of the tight junction-mediated intestinal epithelial barrier in both normal and obese/prediabetic C57 mice fed a regular (control) or high-fat diet for 60 days, respectively. Butyrate treatment significantly inhibited all the high-fat-induced metabolic dysfunctions evaluated, i...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28501330/virus-entry-and-replication-in-the-brain-precedes-blood-brain-barrier-disruption-during-intranasal-alphavirus-infection
#10
Matthew D Cain, Hamid Salimi, Yongfeng Gong, Lihua Yang, Samantha L Hamilton, James R Heffernan, Jianghui Hou, Mark J Miller, Robyn S Klein
Viral infections of the central nervous system (CNS) are often associated with blood-brain barrier (BBB) disruption, yet the impact of virus replication and immune cell recruitment on BBB integrity are incompletely understood. Using two-photon microscopy, we demonstrate that Venezuelan equine encephalitis virus (VEEV) strain TC83-GFP, a GFP expressing, attenuated strain with a G3A mutation within the 5' UTR that is associated with increased sensitivity to type I interferons (IFNs), does not directly impact BBB permeability...
May 1, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28501092/emerging-novel-therapeutic-agents-in-the-treatment-of-patients-with-gastroesophageal-and-gastric-adenocarcinoma
#11
REVIEW
Gayathri Anandappa, Ian Chau
With further understanding of the biology of gastric and gastroesophageal adenocarcinomas, strides are being made to find effective treatments through novel trial designs. This article focuses on the ongoing trials of drugs targeting specific hallmarks of gastric and gastroesophageal cancers, including oncogene addiction proliferative pathways (fibroblast growth factor receptor 2 amplified tumors), stem cell inhibition, apoptotic induction through claudin inhibitors, and matrix metalloproteinase inhibition...
June 2017: Hematology/oncology Clinics of North America
https://www.readbyqxmd.com/read/28498323/alkamides-from-anacyclus-pyrethrum-l-and-their-in-vitro-antiprotozoal-activity
#12
Julia B Althaus, Claudine Malyszek, Marcel Kaiser, Reto Brun, Thomas J Schmidt
In our ongoing study to evaluate the antiprotozoal activity of alkamides from Asteraceae, a dichloromethane extract from the roots of Anacycluspyrethrum L. showed a moderate in vitro activity against the NF54 strain of Plasmodium falciparum and against Leishmaniadonovani (amastigotes, MHOM/ET/67/L82 strain). Seven pure alkamides and a mixture of two further alkamides were isolated by column chromatography followed by preparative high performance liquid chromatography. The alkamides were identified by mass- and NMR-spectroscopic methods as tetradeca-2E,4E-dien-8,10-diynoic acid isobutylamide (anacycline, 1), deca-2E,4E-dienoic acid isobutylamide (pellitorine, 2), deca-2E,4E,9-trienoic acid isobutylamide (3), deca-2E,4E-dienoic acid 2-phenylethylamide (4), undeca-2E,4E-dien-8,10-diynoic acid isopentylamide (5), tetradeca-2E,4E,12Z-trien-8,10-diynoic acid isobutylamide (6), and dodeca-2E,4E-dien acid 4-hydroxy-2-phenylethylamide (7)...
May 12, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28498245/increased-endothelial-progenitor-cell-number-in-early-stage-of-endometrial-cancer
#13
Maria Paprocka, Claudine Kieda, Aneta Kantor, Aleksandra Bielawska-Pohl, Danuta Dus, Andrzej Czekanski, Jerzy Heimrath
OBJECTIVES: It is generally believed that circulating endothelial cells (CECs) and endothelial progenitor cells (EPCs) reflect the state of the endothelium, its injury and/or repair possibilities. In different types of cancers, increased numbers of CECs and EPCs were found, suggesting their participation in cancer angiogenesis. The objective of this study was to determine whether, in the blood circulation of women with early endometrial cancer, CEC and EPC levels differ from those of healthy women of similar age...
June 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28495656/dehydroepiandrosterone-sulfate-augments-blood-brain-barrier-and-tight-junction-protein-expression-in-brain-endothelial-cells
#14
Dimitrios Papadopoulos, Georgios Scheiner-Bobis
Tight junctions (TJ) between brain endothelial cells are essential for formation and maintenance of the blood-brain barrier (BBB). Although loss of BBB integrity is associated with several neuropathological disorders, treatments that augment or stabilise the BBB are scarce. Here we show that physiological concentrations of dehydroepiandrosterone sulfate (DHEAS) stimulate the expression of the TJ proteins zonula occludens-1 (ZO-1) and claudin-3 in the brain-derived endothelial cell line bEnd.3 and promote TJ formation between neighbouring cells, demonstrated by augmented transendothelial resistance across cell monolayers...
May 8, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28494772/anti-claudin-18-2-antibody-as-new-targeted-therapy-for-advanced-gastric-cancer
#15
REVIEW
Prabhsimranjot Singh, Sudhamshi Toom, Yiwu Huang
Targeted therapy and immunotherapy have revolutionized treatment of various cancers in the past decade. Despite targeted therapy with trastuzumab in Her2-positive gastric cancer patients, survival has been dismal, mostly due to disease progression and toxicity related to the treatments. One area of active development is looking for ideal monoclonal antibodies (IMAB) specific to the proteins only on the tumor and hence avoiding unnecessary side effects. Claudin proteins with isoform 2 are one such protein, specific for several cancers, particularly gastric cancer and its metastases, leading to the development of anti-claudin 18...
May 12, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28494150/non-destructive-redox-quantification-reveals-glassmaking-of-rare-french-gothic-stained-glasses
#16
Myrtille O J Y Hunault, Claudine Loisel, Fanny Bauchau, Quentin Lemasson, Claire Pacheco, Laurent Pichon, Brice Moignard, Karine Boulanger, Michel Hérold, Georges Calas, Isabelle Pallot-Frossard
The sophisticated colors of medieval glasses arise from their transition metal (TM) impurities, and capture information on the ancient glassmaking techniques. Beyond the glass chemical composition, the TM redox is also a key factor of the glass color but its quantification without any sampling is a challenge. We report the combination of non-destructive and non-invasive quantitative analyses of the chemical composition by PIXE-PIGE mappings and of the color and TM element speciation by optical absorption spectroscopy performed on a red-blue-purple striped glass from the stained glass windows of the Sainte-Chapelle in Paris (France) during its restoration...
May 11, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28493961/aldosterone-signaling-regulates-the-over-expression-of-claudin-4-and-8-at-the-distal-nephron-from-type-1-diabetic-rats
#17
Eduardo Molina-Jijón, Rafael Rodríguez-Muñoz, Ricardo González-Ramírez, Carmen Namorado-Tónix, José Pedraza-Chaverri, Jose L Reyes
Hyperglycemia in diabetes alters tight junction (TJ) proteins in the kidney. We evaluated the participation of aldosterone (ALD), and the effect of spironolactone (SPL), a mineralocorticoid receptor antagonist, on the expressions of claudin-2, -4, -5 and -8, and occludin in glomeruli, proximal and distal tubules isolated from diabetic rats. Type 1 diabetes was induced in female Wistar rats by a single tail vein injection of streptozotocin (STZ), and SPL was administrated daily by gavage, from days 3-21. Twenty-one days after STZ injection the rats were sacrificed...
2017: PloS One
https://www.readbyqxmd.com/read/28493289/intestinal-epithelial-claudins-expression-and-regulation-in-homeostasis-and-inflammation
#18
REVIEW
Vicky Garcia-Hernandez, Miguel Quiros, Asma Nusrat
The intestinal epithelium forms a highly dynamic and selective barrier that controls absorption of fluid and solutes while restricting pathogen access to underlying tissues. Barrier properties are achieved by intercellular junctions that include an apical tight junction (TJ) and subjacent adherens junctions and desmosomes. The TJ tetraspan claudin proteins form pores between epithelial cells to control paracellular fluid and ion movement. In addition to regulation of barrier function, claudin family members control epithelial homeostasis and are expressed in a spatiotemporal manner in the intestinal crypt-luminal axis...
May 10, 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28492028/professor-claudine-blanchet-bardon-french-dermatologist-and-leading-authority-on-inherited-ichthyoses
#19
EDITORIAL
A Daunton, A R Shipman
This article recounts the early life and professional achievements through 2016 of Professor Claudine Blanchet-Bardon, a French dermatologist who is known for her work in dermatogenetics, genetic counseling, and the care of patients with ichthyoses among other important work.
December 2016: International Journal of Women's Dermatology
https://www.readbyqxmd.com/read/28488774/fscn1-is-upregulated-by-snai2-and-promotes-epithelial-to-mesenchymal-transition-in-head-and-necksquamous-cell-carcinoma
#20
Lei Wang, YaoPeng Jia, ZengYu Jiang, Wei Gao, BinQuan Wang
In this study, we investigated whether there is any association between the expression of FSCN1 and SNAI2and the possible underlying mechanisms in head and neck squamous cell carcinoma (HNSC). In addition, we also investigated whether FSCN1 modulates epithelial to mesenchymal transition (EMT) in HNSC cells. Microarray data of dysregulated genes in HNSC was searched in GEO datasets. The association between FSCN1 expression and the 5-year/10-year overall survival (OS), as well as the correlation between the expression of FSCN1 and SOX2, MYBL2, SNAI2, STAT1 and SOX4 were analyzed based on data in TCGA HNSC cohort (TCGA-HNSC)...
May 10, 2017: Cell Biology International
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