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https://www.readbyqxmd.com/read/28194715/does-extracellular-dna-production-vary-in-staphylococcal-biofilms-isolated-from-infected-implants-versus-controls
#1
Beata Zatorska, Marion Groger, Doris Moser, Magda Diab-Elschahawi, Luigi Segagni Lusignani, Elisabeth Presterl
BACKGROUND: Prosthetic implant infections caused by Staphylococcus aureus and epidermidis are major challenges for early diagnosis and treatment owing to biofilm formation on the implant surface. Extracellular DNA (eDNA) is actively excreted from bacterial cells in biofilms, contributing to biofilm stability, and may offer promise in the detection or treatment of such infections. QUESTIONS/PURPOSES: (1) Does DNA structure change during biofilm formation? (2) Are there time-dependent differences in eDNA production during biofilm formation? (3) Is there differential eDNA production between clinical and control Staphylococcal isolates? (4) Is eDNA production correlated to biofilm thickness? METHODS: We investigated eDNA presence during biofilm formation in 60 clinical and 30 control isolates of S aureus and S epidermidis...
February 13, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28191644/nk-cell-receptors-nkp46-and-ncr1-control-human-metapneumovirus-infection
#2
Mohammad Diab, Ariella Glasner, Batya Issacson, Yotam Bar-On, Yaron Drori, Rachel Yamin, Alexandra Duev-Cohen, Oded Danziger, Rachel Zamostiano, Michal Mandelboim, Stipan Jonjic, Eran Bacharach, Ofer Mandelboim
Natural killer (NK) cells are capable of killing various pathogens upon stimulation of activating receptors. Human metapneumovirus (HMPV) is a respiratory virus, which was discovered in 2001 and is responsible for acute respiratory tract infection in infants and children worldwide. HMPV infection is very common, infecting around 70% of all children under the age of five. Under immune suppressive conditions, HMPV infection can be fatal. Not much is known on how NK cells respond to HMPV. In this study, using reporter assays and NK-cell cytotoxicity assays performed with human and mouse NK cells, we demonstrated that the NKp46 activating receptor and its mouse orthologue Ncr1, both members of the NCR family, recognized an unknown ligand expressed by HMPV infected human cells...
February 13, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28183580/effect-of-total-intravenous-vs-volatile-anesthetics-on-intraoperatively-acquired-electrically-evoked-compound-action-potential-in-children-undergoing-cochlear-implant-surgery-a-randomized-prospective-study
#3
Ala A Alhowary, Khaled El-Radaideh, Anas Al-Rusan, Diab Bani Hani, Wail Khraise, Ahmad Al Omari, Firas Alzoubi
OBJECTIVE: The purpose of the present study was to compare the effects of inhalational anesthesia to those of total intravenous anesthesia on intraoperative electrically evoked compound action potential (e-ECAP) thresholds in children undergoing cochlear implantation. STUDY DESIGN: Randomized prospective study. SETTING: Tertiary referral teaching hospital. PATIENTS: Forty children aged 6 months to 17years with bilateral severe-to-profound sensorineural hearing loss and undergoing cochlear implantation were enrolled in the study...
February 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28162459/-225-the-safety-and-efficacy-of-the-trier-social-stress-test-in-individuals-with-fibromyalgia-a-pilot-study
#4
J Kircher, A Pucelli, R Diab, C Ramirez, B Cherry, J Piazza
No abstract text is available yet for this article.
April 2016: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/28153110/development-of-quality-metrics-in-ambulatory-pediatric-cardiology
#5
REVIEW
Devyani Chowdhury, Michelle Gurvitz, Ariane Marelli, Jeffrey Anderson, Carissa Baker-Smith, Karim A Diab, Thomas C Edwards, Tom Hougen, Roy Jedeikin, Jonathan N Johnson, Peter Karpawich, Wyman Lai, Jimmy C Lu, Stephanie Mitchell, Jane W Newburger, Daniel J Penny, Michael A Portman, Gary Satou, David Teitel, Juan Villafane, Roberta Williams, Kathy Jenkins
The American College of Cardiology Adult Congenital and Pediatric Cardiology (ACPC) Section had attempted to create quality metrics (QM) for ambulatory pediatric practice, but limited evidence made the process difficult. The ACPC sought to develop QMs for ambulatory pediatric cardiology practice. Five areas of interest were identified, and QMs were developed in a 2-step review process. In the first step, an expert panel, using the modified RAND-UCLA methodology, rated each QM for feasibility and validity. The second step sought input from ACPC Section members; final approval was by a vote of the ACPC Council...
February 7, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28152013/using-spatio-temporal-surveillance-data-to-test-the-infectious-environment-of-children-before-type-1-diabetes-diagnosis
#6
Pierre Bougnères, Sophie Le Fur, Sophie Valtat, Yoichiro Kamatani, Mark Lathrop, Alain-Jacques Valleron
The "hygiene hypothesis" postulates that reduced exposure to infections favours the development of autoimmunity and childhood type 1 diabetes (T1D). But on the other side, viruses, notably enteroviruses, are suspected to trigger T1D. The assessment of the possible relationships between infections and T1D still defies the classical tools of epidemiology. We report the methods and results of a geographical approach that maps the addresses of patients to a communicable diseases surveillance database. We mapped the addresses of patients at birth, infancy and T1D diagnosis to the weekly estimates of the regional incidences of 5 frequent communicable diseases routinely collected since 1984 by the French Sentinel network...
2017: PloS One
https://www.readbyqxmd.com/read/28135895/neurologic-complications-in-children-with-scorpionism
#7
Khaled Saad, Mohamed A Abd El-Hamed, Mohamed Gamil M Abo-Elela, Ahmed E Ahmed, Khaled A Abdel-Baseer, Mohamed Diab Aboul-Khair, Kotb Abbass Metwalley, Amira A El-Houfey, Gamal M Hasan, Ahmad M El-Shareef
Scorpion envenomation is a life-threatening health problem in tropical and subtropical regions, particularly among children. The aim of this study was to describe the epidemiologic characteristics, clinical profile, and prognosis of neurologic complications among children with scorpionism in Upper Egypt. In this retrospective study, the neurologic complications of scorpionism in 2 university hospitals were analyzed from the points of epidemiologic and clinical picture and outcomes. The neurologic manifestations were found at a high percentage (85%)...
January 1, 2017: Journal of Child Neurology
https://www.readbyqxmd.com/read/28134729/lichenoid-dermatologic-toxicity-from-immune-checkpoint-blockade-therapy-a-detailed-examination-of-the-clinicopathologic-features
#8
Michael T Tetzlaff, Priyadharsini Nagarajan, Susan Chon, Auris Huen, Adi Diab, Pacha Omar, Phyu P Aung, Carlos A Torres-Cabala, Steven R Mays, Victor G Prieto, Jonathan L Curry
Immunotherapy targeting the programmed cell death 1 (PD-1) receptor has demonstrated tremendous promise in the treatment of advanced solid tumors. Dermatologic toxicities, however, are an emerging consequence of this therapy and have been clearly associated with immune checkpoint blockade antibodies. Distinctive clinical and histologic subtypes of dermatologic toxicity secondary to immunotherapy are emerging and include rare autoimmune bullous reactions (eg, bullous pemphigoid) and lichenoid eruptions. We report three patients who developed lichenoid dermatitis while receiving anti-PD-1 antibody therapy...
February 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28116090/erratum-to-a-case-report-of-grover-s-disease-from-immunotherapy-a-skin-toxicity-induced-by-inhibition-of-ctla-4-but-not-pd-1
#9
Marc Uemura, Faisal Fa'ak, Cara Haymaker, Natalie McQuail, Elizabeth Sirmans, Courtney W Hudgens, Lydia Barbara, Chantale Bernatchez, Jonathan L Curry, Patrick Hwu, Michael T Tetzlaff, Adi Diab
[This corrects the article DOI: 10.1186/s40425-016-0157-6.].
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28114865/sudden-death-in-racehorses
#10
Santiago S Diab, Robert Poppenga, Francisco A Uzal
In racehorses, sudden death (SD) associated with exercise poses a serious risk to jockeys and adversely affects racehorse welfare and the public perception of horse racing. In a majority of cases of exercise-associated sudden death (EASD), there are no gross lesions to explain the cause of death, and an examination of the cardiovascular system and a toxicologic screen are warranted. Cases of EASD without gross lesions are often presumed to be sudden cardiac deaths (SCD). We describe an equine SD autopsy protocol, with emphasis on histologic examination of the heart ("cardiac histology protocol") and a description of the toxicologic screen performed in racehorses in California...
January 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28101433/use-of-sonic-tomography-to-detect-and-quantify-wood-decay-in-living-trees
#11
Gregory S Gilbert, Javier O Ballesteros, Cesar A Barrios-Rodriguez, Ernesto F Bonadies, Marjorie L Cedeño-Sánchez, Nohely J Fossatti-Caballero, Mariam M Trejos-Rodríguez, José Moises Pérez-Suñiga, Katharine S Holub-Young, Laura A W Henn, Jennifer B Thompson, Cesar G García-López, Amanda C Romo, Daniel C Johnston, Pablo P Barrick, Fulvia A Jordan, Shiran Hershcovich, Natalie Russo, Juan David Sánchez, Juan Pablo Fábrega, Raleigh Lumpkin, Hunter A McWilliams, Kathleen N Chester, Alana C Burgos, E Beatriz Wong, Jonathan H Diab, Sonia A Renteria, Jennifer T Harrower, Douglas A Hooton, Travis C Glenn, Brant C Faircloth, Stephen P Hubbell
PREMISE OF THE STUDY: Field methodology and image analysis protocols using acoustic tomography were developed and evaluated as a tool to estimate the amount of internal decay and damage of living trees, with special attention to tropical rainforest trees with irregular trunk shapes. METHODS AND RESULTS: Living trunks of a diversity of tree species in tropical rainforests in the Republic of Panama were scanned using an Argus Electronic PiCUS 3 Sonic Tomograph and evaluated for the amount and patterns of internal decay...
December 2016: Applications in Plant Sciences
https://www.readbyqxmd.com/read/28095374/human-cytomegalovirus-infection-in-nonimmunocompromised-patients-a-retrospective-analysis-and-review-of-the-literature
#12
Konstantin Zedtwitz-Liebenstein, Magda Diab-Elschahaw, Michael Frass
In a retrospective analysis of patients visiting the Outpatient Department of the Division of Infectious Diseases and Tropical Medicine over a period of 3 years, we found a high incidence of symptomatic nonsevere human cytomegalovirus (HCMV) infection in nonimmunocompromised patients. We present 11 symptomatic cases of HCMV infection in nonimmunocompromised patients with non-life-threatening symptoms like long-lasting depletion, fatigue, and subfebrile fever with or without muscular pain and arthralgia. Although the symptoms were not life-threatening, all of the patients suffered a prolonged duration of the disease until improvement...
January 18, 2017: Intervirology
https://www.readbyqxmd.com/read/28070651/inferior-vena-cava-involvement-in-children-with-wilms-tumor
#13
Abeer Al Diab, Nader Hirmas, Abdellatif Almousa, Ramiz Abu-Hijlih, Fatinah Aljlouni, Iyad Sultan, Khalil Ghandour
OBJECTIVES: Retrospective review of children with WT thrombus involving the IVC. METHODS: We reviewed the charts of 123 patients with WT diagnosed between January 2006 and December 2015. Patients with caval tumor thrombus were identified, demographic data, radiological images, extent of thrombus, chemo- and radiotherapy, surgical approach, pathology reports and outcomes were analyzed. RESULTS: IVC involvement was identified in 11 patients (9%)...
January 9, 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/28065163/diagnostic-approach-to-catastrophic-musculoskeletal-injuries-in-racehorses
#14
Santiago S Diab, Susan M Stover, Francisco Carvallo, Akinyi C Nyaoke, Janet Moore, Ashley Hill, Rick Arthur, Francisco A Uzal
Catastrophic musculoskeletal injuries are the most common cause of euthanasia or spontaneous death in racehorses, and the most common cause of jockey falls with potential for serious human injury. Horses are predisposed to the vast majority of these injuries by preexisting lesions that can be prevented by early diagnosis and adequate bone injury management. A thorough examination of the musculoskeletal system in racehorses often determines the cause of these injuries and generates data to develop injury prevention strategies...
January 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28062513/metastatic-melanoma-patient-had-a-complete-response-with-clonal-expansion-after-whole-brain-radiation-and-pd-1-blockade
#15
Cara L Haymaker, DaeWon Kim, Marc Uemura, Luis M Vence, Ann Phillip, Natalie McQuail, Paul D Brown, Irina Fernandez, Courtney W Hudgens, Caitlin Creasy, Wen-Jen Hwu, Padmanee Sharma, Michael T Tetzlaff, James P Allison, Patrick Hwu, Chantale Bernatchez, Adi Diab
We report here on a patient with metastatic melanoma who had extensive brain metastases. After being treated with the sequential combination of whole brain radiation therapy followed by the PD-1-inhibitory antibody, pembrolizumab, the patient had a durable complete response. Retrospective laboratory studies of T cells revealed that, after treatment with anti-PD-1 commenced, effector CD8(+) T cells in the blood expanded and the ratio of CD8(+):Treg T cells increased. A CD8(+) T-cell clone present in the initial brain metastases was expanded in the blood after anti-PD-1 treatment, which suggested an antitumor role for this clone...
January 6, 2017: Cancer Immunology Research
https://www.readbyqxmd.com/read/28049622/efficacy-and-safety-of-coronary-sinus-aspiration-during-coronary-angiography-to-attenuate-the-risk-of-contrast-induced-acute-kidney-injury-in-predisposed-patients
#16
Osama Ali Diab, Mostafa Helmy, Yasser Gomaa, Reem El-Shalakany
BACKGROUND: The incidence of contrast-induced acute kidney injury is strongly related to the amount of the given contrast. Our objectives were to evaluate the efficacy and safety of coronary sinus aspiration (CSA) procedure to reduce the volume of the given contrast and attenuate the risk of contrast-induced acute kidney injury. METHODS AND RESULTS: The study included 43 patients with type 2 diabetes mellitus and renal impairment (creatinine 1.5-3 mg/dL) who were candidates for coronary angiography...
January 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28038695/national-trends-in-the-surgical-management-of-adolescent-idiopathic-scoliosis-analysis-of-a-national-estimate-of-60-108-children-from-the-national-inpatient-sample-over-a-13-year-time-period-in-the-united-states
#17
Alexander A Theologis, David C Sing, Faraaz Chekeni, Mohammad Diab
STUDY DESIGN: Analysis of Nationwide Inpatient Sample (NIS). OBJECTIVE: Evaluate evolution of operative treatment of adolescent idiopathic scoliosis (AIS). SUMMARY OF BACKGROUND DATA: Spinal surgery is one of the most rapidly evolving branches of surgery. Changes in AIS operations are incompletely defined. METHODS: Children (10-18 years) with ICD-9 diagnosis of idiopathic scoliosis who underwent thoracic and/or lumbar spinal fusion identified in the NIS (1998-2011) were analyzed...
January 2017: Spine Deformity
https://www.readbyqxmd.com/read/28031536/use-of-non-selective-%C3%AE-blockers-is-associated-with-decreased-tumor-proliferative-indices-in-early-stage-breast-cancer
#18
Alexa Montoya, Clarissa N Amaya, Andres Belmont, Nabih Diab, Richard Trevino, Geri Villanueva, Steven Rains, Luis A Sanchez, Nabeel Badri, Salman Otoukesh, Ali Khammanivong, Danielle Liss, Sarah T Baca, Renato J Aguilera, Erin B Dickerson, Alireza Torabi, Alok K Dwivedi, Aamer Abbas, Karinn Chambers, Brad A Bryan, Zeina Nahleh
Previous studies suggest beta-adrenergic receptor (β-AR) antagonists (β-blockers) decrease breast cancer progression, tumor metastasis, and patient mortality; however the mechanism for this is unknown. Immunohistochemical analysis of normal and malignant breast tissue revealed overexpression of β1-AR and β3-AR in breast cancer. A retrospective cross-sectional study of 404 breast cancer patients was performed to determine the effect of β-blocker usage on tumor proliferation. Our analysis revealed that non-selective β-blockers, but not selective β-blockers, reduced tumor proliferation by 66% (p < 0...
January 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/27999997/level-i-lymph-node-involvement-in-patients-with-n1b-papillary-thyroid-carcinoma-a-prospective-study
#19
Ahmad M Eweida, Mahmoud F Sakr, Yasser Hamza, Mohamed R Khalil, Essam Gabr, Tarek Koraitim, Hatem F Al-Wagih, Waleed Abo-Elwafa, Tarek Ezzat Abdel-Aziz, Ahmed A Diab, Basma El-Sabaa, Aman S Nabawi
Most of the studies on the incidence, pattern, and predictive factors of lymph node (LN) metastasis with papillary thyroid carcinoma (PTC) have been performed retrospectively and no common consensus has been reached regarding the predictors for the involvement of level I LNs. This study was conducted prospectively to determine the incidence and the possible predictors of level I involvement in N1b PTC patients. The study included 30 consecutive patients with N1b stage of PTC. All the patients underwent neck dissection (ND) including level I...
December 20, 2016: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/27998383/efficacy-of-gold-nanoparticles-against-nephrotoxicity-induced-by-schistosoma-mansoni-infection-in-mice
#20
Mohamed A Dkhil, Mona F Khalil, Amira A Bauomy, Marwa Sm Diab, Saleh Al-Quraishy
OBJECTIVE: In this study, the ameliorative effects of gold nanoparticles (gold NP) on the renal tissue damage in Schistosoma mansoni (S. mansoni)-infected mice was investigated. METHODS: High-resolution transmission electron microscopy was used for the characterization of NP. The gold NP at concentrations of 250, 500, and 1000 μg/kg body weight were inoculated into S. mansoni-infected mice. RESULTS: The parasite caused alterations in the histological architecture...
2016: Biomedical and Environmental Sciences: BES
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