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https://www.readbyqxmd.com/read/28917675/regional-variation-in-technetium-pyrophosphate-uptake-in-transthyretin-cardiac-amyloidosis-and-impact-on%C3%A2-mortality
#1
Brett W Sperry, Michael N Vranian, Albree Tower-Rader, Rory Hachamovitch, Mazen Hanna, Richard Brunken, Dermot Phelan, Manuel D Cerqueira, Wael A Jaber
OBJECTIVES: This study sought to investigate the regional uptake of technetium 99m-pyrophosphate (TcPYP) in transthyretin cardiac amyloidosis (ATTR) and its association with mortality. BACKGROUND: TcPYP nuclear scintigraphy is a diagnostic and prognostic tool in ATTR. Echocardiography has identified a pattern of regional variation in longitudinal strain (LS) with a gradient of improved strain from base to apex in ATTR. METHODS: Consecutive patients with ATTR were evaluated who underwent TcPYP nuclear scintigraphy with planar and attenuation corrected single-photon emission computed tomography (SPECT)...
September 9, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28915646/interleukin-15-stimulates-natural-killer-cell-mediated-killing-of-both-human-pancreatic-cancer-and-stellate-cells
#2
Jonas R M Van Audenaerde, Jorrit De Waele, Elly Marcq, Jinthe Van Loenhout, Eva Lion, Johan M J Van den Bergh, Ralf Jesenofsky, Atsushi Masamune, Geert Roeyen, Patrick Pauwels, Filip Lardon, Marc Peeters, Evelien L J Smits
Pancreatic ductal adenocarcinoma (PDAC) is the 4(th) leading cause of cancer-related death in Western countries with a 5-year survival rate below 5%. One of the hallmarks of this cancer is the strong desmoplastic reaction within the tumor microenvironment (TME), orchestrated by activated pancreatic stellate cells (PSC). This results in a functional and mechanical shield which causes resistance to conventional therapies. Aiming to overcome this resistance by tackling the stromal shield, we assessed for the first time the capacity of IL-15 stimulated natural killer (NK) cells to kill PSC and pancreatic cancer cells (PCC)...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28914579/a-polymicrobial-view-of-disease-potential-in-crohn-s-associated-adherent-invasive-e-coli
#3
Wael Elhenawy, Alexander Oberc, Brian K Coombes
The human gut is home to trillions of bacteria and provides the scaffold for one of the most complex microbial ecosystems in nature. Inflammatory bowel diseases, such as Crohn's disease, involve a compositional shift in the microbial constituents of this ecosystem with a marked expansion of Enterobacteriaceae, particularly Escherichia coli. Adherent-invasive E. coli (AIEC) strains are frequently isolated from the biopsies of Crohn's patients, where their ability to elicit inflammation suggests a possible role in Crohn's pathology...
September 15, 2017: Gut Microbes
https://www.readbyqxmd.com/read/28905991/target-of-rapamycin-signaling-orchestrates-growth-defense-trade-offs-in-plants
#4
David De Vleesschauwer, Osvaldo Filipe, Gena Hoffman, Hamed Soren Seifi, Ashley Haeck, Patrick Canlas, Jonas Van Bockhaven, Evelien De Waele, Kristof Demeestere, Pamela Ronald, Monica Hofte
Plant defense to microbial pathogens is often accompanied by significant growth inhibition. How plants merge immune system function with normal growth and development is still poorly understood. Here, we investigated the role of target of rapamycin (TOR), an evolutionary conserved serine/threonine kinase, in the plant defense response. We used rice as a model system and applied a combination of chemical, genetic, genomic and cell-based analyses. We demonstrate that ectopic expression of TOR and Raptor (regulatory-associated protein of mTOR), a protein previously demonstrated to interact with TOR in Arabidopsis, positively regulates growth and development in rice...
September 14, 2017: New Phytologist
https://www.readbyqxmd.com/read/28905052/cyclic-peptide-production-using-a-macrocyclase-with-enhanced-substrate-promiscuity-and-relaxed-recognition-determinants
#5
Cristina N Alexandru-Crivac, Christian Umeobika, Niina Leikoski, Jouni Jokela, Kirstie A Rickaby, André M Grilo, Peter Sjö, Alleyn T Plowright, Mohannad Idress, Eike Siebs, Ada Nneoyi-Egbe, Matti Wahlsten, Kaarina Sivonen, Marcel Jaspars, Laurent Trembleau, David P Fewer, Wael E Houssen
Macrocyclic peptides have promising therapeutic potential but the scaling up of their chemical synthesis is challenging. The cyanobactin macrocyclase PatGmac is an efficient tool for production but is limited to substrates containing 6-11 amino acids and at least one thiazoline or proline. Here we report a new cyanobactin macrocyclase that can cyclize longer peptide substrates and those not containing proline/thiazoline and thus allows exploring a wider chemical diversity.
September 14, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28903346/glutathione-peroxidase-7-suppresses-cancer-cell-growth-and-is-hypermethylated-in-gastric-cancer
#6
Zheng Chen, Tianling Hu, Shoumin Zhu, Kenichi Mukaisho, Wael El-Rifai, Dun-Fa Peng
Gastric cancer (GC) is one of the most common cancers in the world, and remains the third leading cause of cancer-related deaths worldwide. Glutathione peroxidase 7 (GPX7) is a member of GPX family which is downregulated in some cancer types. In this study, we investigated the expression, regulation, and molecular function of GPX7 in gastric cancer using 2D and 3D in vitro models and de-identified human tissue samples. Quantitative real-time RT-PCR, immunofluorescence, Western blot, 3D organotypic cultures, and pyrosequencing assays were used...
August 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28901501/mtor-inhibition-reduces-growth-and-adhesion-of-hepatocellular-carcinoma-cells-in%C3%A2-vitro
#7
Tobias Engl, Jochen Rutz, Sebastian Maxeiner, Eva Juengel, Frederik Roos, Wael Khoder, Wolf O Bechstein, Karen Nelson, Igor Tsaur, Axel Haferkamp, Roman A Blaheta
Mechanistic target of rapamycin (mTOR) signaling is typically increased in hepatocellular carcinoma (HCC). A panel of HCC cell lines (HepG2, Hep3B and HuH6) was exposed to various concentrations of the mTOR inhibitors, everolimus and temsirolimus, in order to investigate their effects on cell growth, clonal formation, cell cycle progression, and adhesion and chemotactic migration using MTT and clonal cell growth assays, fluorometric detection of cell cycle phases and a Boyden chamber assay. In addition, integrin α and β adhesion receptors were analyzed by flow cytometry and blocking studies using function blocking monoclonal antibodies were conducted to explore functional relevance...
August 31, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28900899/cardiovascular-disease-in-the-literature-a-selection-of-recent-original-research-papers
#8
REVIEW
Fadi G Hage, Wael AlJaroudi
No abstract text is available yet for this article.
September 12, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28900479/loss-of-tff1-promotes-pro-inflammatory-phenotype-with-increase-in-the-levels-of-ror%C3%AE-t-t-lymphocytes-and-il-17-in-mouse-gastric-neoplasia
#9
Mohammed Soutto, Mohamed Saleh, Mohamed S Arredouani, Blanca Piazuelo, Abbes Belkhiri, Wael El-Rifai
Background: TFF1 deficiency induces a mucosal pro-inflammatory phenotype that contributes to gastric tumorigenesis in mouse and human. Methods: We utilized the Tff1-KO mouse model to assess the impact of TFF1 loss on immune cells infiltration in the stomach. We used single cell suspension, flow cytometry, immunohistochemistry, and quantitative PCR (qPCR) assays. Results: The Tff1-KO gastric mucosa demonstrated high chronic inflammatory scores (score: 3-4) at age 2 months, which exacerbated at age 8 months (score: 4-6)...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28899975/antagonism-of-eg-vegf-receptors-as-targeted-therapy-for-choriocarcinoma-progression-in-vitro-and-in-vivo
#10
Wael Traboulsi, Frederic Sergent, Houssine Boufettal, Sophie Brouillet, Rima Slim, Pascale Hoffmann, Mohammed Benlahfid, Qun Yong Zhou, Giafranco Balboni, Valentina Onnis, Pierre-Adrien Bolze, Aude Salomon, Philippe Sauthier, François Mallet, Touria Aboussaouira, Jean-Jacques Feige, Mohamed Benharouga, Nadia Alfaidy
PURPOSE: Choriocarcinoma (CC) is the most malignant gestational trophoblastic disease that often develops from complete hydatidiform moles (CHM). Neither the mechanism of CC development nor its progression is yet characterized. We have recently identified EG-VEGF as a novel key placental growth factor that controls trophoblast proliferation and invasion. EG-VEGF acts via two receptors PROKR1 and PROKR2. Here, we demonstrate that EG-VEGF receptors can be targeted for CC therapy. EXPERIMENTAL DESIGN: Three approaches were used, i) a clinical investigation comparing circulating EG-VEGF in Control (n=20) and in distinctive CHM (n=38) and CC (n=9) cohorts, ii) an in vitro study investigating EG-VEGF effects on the CC cell line JEG3, and iii) an in vivo study including the development of a novel CC mouse model, through a direct injection of JEG3-luciferase into the placenta of gravid SCID-mice...
September 12, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28898455/coronary-pulmonary-arterial-fistula-in-a-neonate-with-pulmonary-atresia-ventricular-septal-defect-and-single-coronary-artery
#11
Naif Alkhushi, Osman O Al-Radi, Amr Ajlan, Gaser Abdelmohsen, Wael Attia
In cases of pulmonary atresia with ventricular septal defect (PA-VSD), coronary-pulmonary arterial fistula (CPAF) as the main source of pulmonary blood supply is extremely rare. These fistulae may arise from the left coronary artery, right coronary artery, or a single coronary artery. Fistulae from a single coronary artery are unusual. We are reporting a case of PA-VSD with single coronary artery and CPAF as the main source of pulmonary supply in addition to two major aortopulmonary collateral arteries (MAPCAS)...
September 12, 2017: Echocardiography
https://www.readbyqxmd.com/read/28895031/utility-of-endoanal-ultrasonography-in-assessment-of-primary-and-recurrent-anal-fistulas-and-for-detection-of-associated-anal-sphincter-defects
#12
Sameh Hany Emile, Alaa Magdy, Mohamed Youssef, Waleed Thabet, Mahmoud Abdelnaby, Waleed Omar, Wael Khafagy
BACKGROUND: Tridimensional endoanal ultrasonography (3D-EAUS) has been used for the assessment of various anorectal lesions. Previous studies have reported good accuracy of 3D-EAUS in preoperative assessment of fistula-in-ano (FIA). This study aimed to assess the diagnostic utility of 3D-EAUS in preoperative evaluation of primary and recurrent FIA and its role in detection of associated anal sphincter (AS) defects. PATIENTS AND METHODS: Prospectively collected data of patients with FIA who were investigated with 3D-EAUS were reviewed...
September 11, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28894622/a-liquid-chromatography-tandem-mass-spectrometry-method-for-evaluation-of-two-brands-of-enalapril-20%C3%A2-mg-tablets-in-healthy-human-volunteers
#13
Wael Abu Dayyih, Mohammed Hamad, Ahmad Abu Awwad, Eyad Mallah, Zainab Zakarya, Alice Abu Dayyih, Tawfiq Arafat
Enalapril is an angiotensin-converting enzyme inhibitor used for treatment of hypertension and chronic heart disease. Enalaprilat is its active metabolite responsible for the activity. This study aimed to develop and validate a method for enalapril and enalaprilat analysis and to determine the bioequivalence of two tablet formulae of enalapril. LC-MS/MS bioanalytical method was developed and validated and then applied to evaluate the bioavailability of two enalapril formulae. Antihyperglycemic sitagliptin was used as internal standard (IS)...
2017: Journal of Analytical Methods in Chemistry
https://www.readbyqxmd.com/read/28893712/single-session-percutaneous-endovascular-mesocaval-shunt-creation-and-balloon-occluded-retrograde-transvenous-obliteration-for-the-treatment-of-gastric-varices
#14
Ravi Nara Srinivasa, Bill S Majdalany, Jeffrey Forris Beecham Chick, J Matthew Meadows, Jordan Bruce Fenlon, Charles Brewerton, Wael E Saad
In the setting of portal hypertension, the body responds by creating portosystemic venous shunts which may lead to the development of varices. Endoscopic treatment of these varices is often warranted to prevent catastrophic bleeding. During the course of variceal treatment, one or more portosystemic shunts may be sacrificed which may acutely exacerbate portal hypertension and reduce systemic venous return. This report describes percutaneous creation of a mesocaval shunt and balloon-occluded retrograde transvenous obliteration (BRTO) in a patient with cavernous transformation of the portal vein...
September 8, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28891313/mid-sole-release-of-the-plantar-fascia-combined-with-percutaneous-drilling-of-the-calcaneus-for-treatment-of-resistant-heel-pain
#15
Ahmed Shawkat Rizk, Wael A Kandel, Eslam Abd Elshafi Tabl, Mahmoud I Kandil
BACKGROUND: Heel pain with or without calcaneal spur is a challenging problem. Once conservative measures have failed, surgery may be indicated; there has been debate about the best surgical procedure. Two standard operative procedures have been either releasing the plantar fascia or removing the spur with drilling of the calcaneus. In this study, we evaluated the results of percutaneous drilling of the calcaneus combined with mid-sole release of the plantar fascia for treatment of resistant heel pain...
September 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28881665/hpv-associated-differential-regulation-of-tumor-metabolism-in-oropharyngeal-head-and-neck-cancer
#16
Young-Suk Jung, Abdo J Najy, Wei Huang, Seema Sethi, Michael Snyder, Wael Sakr, Gregory Dyson, Maik Hüttemann, Icksoo Lee, Rouba Ali-Fehmi, Silvia Franceschi, Linda Struijk, Harold E Kim, Ikuko Kato, Hyeong-Reh Choi Kim
HPV-positive oropharyngeal cancer patients experience significantly lower locoregional recurrence and higher overall survival in comparison with HPV-negative patients, especially among those who received radiation therapy. The goal of the present study is to investigate the molecular mechanisms underlying the differential radiation sensitivity between HPV-negative and HPV-positive head and neck squamous cell carcinoma (HNSCC). Here, we show that HPV-negative HNSCC cells exhibit increased glucose metabolism as evidenced by increased production of lactate, while HPV-positive HNSCC cells effectively utilize mitochondrial respiration as evidenced by increased oxygen consumption...
August 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28879520/transnasal-snare-technique-for-retrograde-primary-jejunostomy-placement-after-surgical-gastrojejunostomy
#17
Rajiv N Srinivasa, Jeffrey Forris Beecham Chick, Anthony N Hage, James J Shields, Wael E Saad, Bill S Majdalany, Ravi N Srinivasa
PURPOSE: To report a transnasal snare technique for retrograde primary jejunostomy placement after surgical gastrojejunostomy. MATERIALS AND METHODS: Two patients underwent the transnasal snare technique for retrograde primary jejunostomy placement. Patients included two females, age 58 and 62. In both patients, a gooseneck snare was inserted in a transnasal fashion. After insertion of the snare into the jejunum, the location was confirmed with ultrasound. The snare was then targeted using a Chiba needle through which a 0...
September 6, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28879455/suicide-in-children-and-adolescents-a-tunisian-perspective-from-2009-to-2015
#18
Wael Majdoub, Amal Mosbahi, Maroua Naouar, Meriem Beji, Jihene Mannai, Elyes Turki
This study presents the characteristics of child and adolescent suicides which occurred in Kairouan, Tunisia. Data were collected from autopsy records of the Forensic Department of the University Hospital Ibn El Jazzar of Kairouan. General characteristics of suicides among children and adolescents (under the age of 18) between 2009 and 2015 were retrospectively reviewed. A total of 49 cases, with a female predominance (61.2%) and a mean age of 15.4 ± 2.1, were registered. Most of the victims were from rural areas (93...
September 7, 2017: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/28879381/erratum-to-cementless-total-hip-arthroplasty-in-the-treatment-after-acetabular-fractures
#19
Wael Salama, Paolo Ditto, Shazly Mousa, Abdelrahman Khalefa, Ahmed Sleem, Laura Ravera, Alessandro Masse
No abstract text is available yet for this article.
September 6, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28878941/clinical-profiles-comorbidities-and-complications-of-type-2-diabetes-mellitus-in-patients-from-united-arab-emirates
#20
Herbert F Jelinek, Wael M Osman, Ahsan H Khandoker, Kinda Khalaf, Sungmun Lee, Wael Almahmeed, Habiba S Alsafar
OBJECTIVE: To assess clinical profiles of patients with type 2 diabetes in the United Arab Emirates (UAE), including patterns, frequencies, and risk factors of microvascular and macrovascular complications. RESEARCH DESIGN AND METHODS: Four hundred and ninety patients with type 2 diabetes were enrolled from two major hospitals in Abu Dhabi. The presence of microvascular and macrovascular complications was assessed using logistic regression, and demographic, clinical and laboratory data were collected...
2017: BMJ Open Diabetes Research & Care
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