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https://www.readbyqxmd.com/read/28806295/splenules-presenting-as-incidental-gastric-fundic-masses-on-endoscopy
#1
Ammar Khayat, Alfonso M Martinez
No abstract text is available yet for this article.
August 11, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28805578/nonmotor-symptoms-in-amyotrophic-lateral-sclerosis-a-systematic-review
#2
Ton Fang, Felix Jozsa, Ammar Al-Chalabi
BACKGROUND: ALS is a progressive neurodegenerative disease with no curative treatment. Nonmotor symptoms presenting in ALS may cause significant distress, worsen prognosis, and affect survival. OBJECTIVE: To systematically review evidence for the prevalence of nonmotor ALS symptoms, and treatment options. METHODS: Multiple medical literature databases were searched and studies screened using predefined inclusion criteria. Of 4580 studies, 44 were eligible for inclusion with 25 relating to treatment and 19 to the prevalence of nonmotor symptoms in ALS...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28799780/lycopene-and-tomato-and-risk-of-cardiovascular-diseases-a-systematic-review-and-meta-analysis-of-epidemiological-evidence
#3
Ho M Cheng, Georgios Koutsidis, John K Lodge, Ammar W Ashor, Mario Siervo, Jose Lara
BACKGROUND AND AIMS: Worldwide, cardiovascular diseases (CVDs) remains as the main cause of mortality. Observational studies supports an association between intake of tomato products or lycopene with a reduced CVDs risk. Our aim was to undertake a systematic review and meta-analysis of the evidence on the topic. METHODS: Medline, Web of Science, and Scopus were searched from inception until July 2017. We included longitudinal and cross-sectional studies reporting associations between lycopene and tomato consumption and cardiovascular morbidity and mortality among adult subjects...
August 11, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/28795909/reduced-revision-rate-and-maintained-function-after-hip-arthroplasty-for-femoral-neck-fractures-after-transition-from-posterolateral-to-direct-lateral-approach
#4
Sebastian Mukka, Björn Knutsson, Ammar Majeed, Arkan S Sayed-Noor
Background and purpose - The direct lateral (DL) approach to the hip for femoral neck fractures (FNF) has been shown to reduce the rate of dislocation and reoperations. We evaluate the effect of transition from the posterolateral (PL) to DL approach on reoperation and dislocation rates and patients' reported outcome. Patients and methods - In a prospective cohort study between 2012 and 2015, we enrolled 362 patients (median age 83 years, 70% women, mean follow-up 25 months) with a displaced FNF. The first group of 146 patients were operated using the PL and the second group of 216 patients with a DL approach, after change of our routines...
August 10, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28794931/improved-production-of-kojic-acid-by-mutagenesis-of-aspergillus-flavus-hak1-and-aspergillus-oryzae-hak2-and-their-potential-antioxidant-activity
#5
Hala A M Ammar, Saeid M Ezzat, Asmaa M Houseny
Two wild-type (WT) Aspergillus strains, A. flavus HAk1 and A. oryzae HAk2, were selected for kojic acid (KA) biosynthesis. Malt extract sucrose culture medium (MES) was the best culture medium for maximum production of KA. The maximum production of KA has been estimated at pH 4 after 7 days of incubation at 30 °C. Overproduction of KA was attained by mutagenesis of both A. flavus HAk1 and A. oryzae HAk2 through their exposer to different doses of gamma irradiation. The mutant strains (MT) A. flavus HAk1-M2 and A...
October 2017: 3 Biotech
https://www.readbyqxmd.com/read/28791242/an-online-academic-writing-and-publishing-skills-course-help-syrians-find-their-voice
#6
Ammar Sabouni, Abdelkader Chaar, Yamama Bdaiwi, Abdulrahman Masrani, Heba Abolaban, Fares Alahdab, Belal Firwana, Ahmad Al-Moujahed
PURPOSE: A group of Arab-American physicians and researchers in the United States organized a blended online course in academic writing and publishing in medicine targeting medical students and physicians in war-torn Syria. This was an effort to address one of the reasons behind the poor quantity and quality of scientific research papers in Syria and the Arab region. In this paper, we report on the design, conduct, and outcome of this course and attempt to evaluate its effectiveness. METHODS: The educational intervention was a 2-month blended online course...
July 2017: Avicenna Journal of Medicine
https://www.readbyqxmd.com/read/28780707/evidence-for-association-between-hepatitis-c-virus-and-parkinson-s-disease
#7
REVIEW
Abdelrahman Ibrahim Abushouk, Mostafa Wanees Ahmed El-Husseny, Mayar Magdy, Ammar Ismail, Attia Attia, Hussien Ahmed, Ravikishore Pallanti, Ahmed Negida
Parkinson's disease (PD) is a globally prevalent neurodegenerative disorder, characterized by progressive neuronal loss in the substantia nigra and formation of Lewy bodies. These pathological characteristics are clinically translated into motor symptoms, such as bradykinesia, rigidity, resting tremors, and postural instability. Emerging data from epidemiological studies suggest a possible association between PD and hepatitis C virus (HCV) infection, which affects up to 71 million individuals worldwide. Preclinical studies have shown that HCV can penetrate and replicate within the brain macrophages and microglial cells, increasing their production of pro-inflammatory cytokines that can directly cause neuronal toxicity...
August 5, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28780406/novel-mutations-in-the-cdkl5-gene-in-complex-genotypes-associated-with-west-syndrome-with-variable-phenotype-first-description-of-somatic-mosaic-state
#8
Marwa Ben Jdila, Abir Ben Issa, Boudour Khabou, Bochra Ben Rhouma, Fatma Kamoun, Leila Ammar-Keskes, Chahnez Triki, Faiza Fakhfakh
INTRODUCTION: West syndrome is a rare epileptic encephalopathy of early infancy, characterized by epileptic spasms, hypsarrhythmia, and psychomotor retardation beginning in the first year of life. METHODS: The present study reports the clinical, molecular and bioinformatic investigation in the three studied West patients. RESULTS: The results revealed a complex genotype with more than one mutation in each patient including the known mutations c...
August 2, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28780296/effect-of-uvb-radiation-exposure-in-the-expression-of-genes-and-proteins-related-to-apoptosis-in-freshwater-prawn-embryos
#9
Heloísa Schramm, Michael L Jaramillo, Thaline de Quadros, Eliane C Zeni, Yara M R Müller, Dib Ammar, Evelise M Nazari
Our previous studies showed that embryos of the freshwater prawn Macrobrachium olfersii exposed to ultraviolet B (UVB) radiation exhibited DNA damage, excessive ROS production, mitochondrial dysfunction and increased hsp70 expression, which are able, independently or together, to induce apoptosis. Thus, we attempted to elucidate some key apoptosis-related genes (ARG) and apoptosis-related proteins (ARP) and their expression during different stages of embryonic development, as well as to characterize the chronology of ARG expression and ARP contents after UVB radiation insult...
July 26, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28777808/qm-mm-simulations-provide-insight-into-the-mechanism-of-bioluminescence-triggering-in-ctenophore-photoproteins
#10
Maryam Molakarimi, Ammar Mohseni, Majid Taghdir, Zaiddodine Pashandi, Michael A Gorman, Michael W Parker, Hossein Naderi-Manesh, Reza H Sajedi
Photoproteins are responsible for light emission in a variety of marine ctenophores and coelenterates. The mechanism of light emission in both families occurs via the same reaction. However, the arrangement of amino acid residues surrounding the chromophore, and the catalytic mechanism of light emission is unknown for the ctenophore photoproteins. In this study, we used quantum mechanics/molecular mechanics (QM/MM) and site-directed mutagenesis studies to investigate the details of the catalytic mechanism in berovin, a member of the ctenophore family...
2017: PloS One
https://www.readbyqxmd.com/read/28777726/nonconvex-policy-search-using-variational-inequalities
#11
Yusen Zhan, Haitham Bou Ammar, Matthew E Taylor
Policy search is a class of reinforcement learning algorithms for finding optimal policies in control problems with limited feedback. These methods have been shown to be successful in high-dimensional problems such as robotics control. Though successful, current methods can lead to unsafe policy parameters that potentially could damage hardware units. Motivated by such constraints, we propose projection-based methods for safe policies. These methods, however, can handle only convex policy constraints. In this letter, we propose the first safe policy search reinforcement learner capable of operating under nonconvex policy constraints...
August 4, 2017: Neural Computation
https://www.readbyqxmd.com/read/28776390/value-of-troponin-levels-in-the-diagnosis-of-cardiac-dysfunction-in-moderate-scorpion-envenomation
#12
O Chakroun-Walha, R Karray, M Jerbi, A Ben Rebeh, C Jammeli, M Bahloul, R Ammar, I Chabchoub, M Bouaziz, A Nasri, N Rekik
CONTEXT: Cardiac dysfunction is one of the most serious consequences of scorpion envenomation. The best tool to evaluate cardiac function is echocardiography, but it is not available at all emergency departments. Many studies aimed to describe biological predictive factors of cardiac dysfunction in scorpion envenomation. Troponin is one of these biomarkers but its correlation with myocarditis is not well established. The aim of this study was to evaluate correlation between troponin levels and cardiac dysfunction in moderate scorpion envenomation...
January 1, 2017: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/28766036/evaluation-of-the-antimicrobial-activities-of-ultrasonicated-spinach-leaf-extracts-using-rapd-markers-and-electron-microscopy
#13
Ammar Altemimi, Naoufal Lakhssassi, Amer Abu-Ghazaleh, David A Lightfoot
Spinach (Spinacia oleracea L.) leaves represent an important dietary source of nutrients, antioxidants and antimicrobials. As such, spinach leaves play an important role in health and have been used in the treatment of human diseases since ancient times. Here, the aims were to optimize the extraction methods for recovering antimicrobial substances of spinach leaves, determine the minimum inhibitory concentrations (MICs) of the antimicrobial substances against Escherichia coli and Staphylococcus aureus and, finally, evaluate the effects of spinach leaves' antimicrobials on bacterial DNA using central composite face-centered methods...
August 1, 2017: Archives of Microbiology
https://www.readbyqxmd.com/read/28765189/expanding-the-differential-toluene-induced-toxicity
#14
Lavanya Dharmarajan, Hussam Ammar
A 31-year-old woman presented to the hospital with generalised weakness and lower back and abdominal pain. The only significant finding on physical examination was the weakness of the legs. Laboratory analysis in the emergency department revealed that she was hypokalaemic with metabolic acidosis. She was treated with oral and intravenous potassium, which resolved her weakness. During the search for an explanation for her renal tubular acidosis, she said she was exposed to paint exposure while working on a friend's house...
August 1, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28764025/variability-in-iron-zinc-and-phytic-acid-content-in-a-worldwide-collection-of-commercial-durum-wheat-cultivars-and-the-effect-of-reduced-irrigation-on-these-traits
#15
Ana María Magallanes-López, Nayeli Hernandez-Espinosa, Govindan Velu, Gabriel Posadas-Romano, Virginia María Guadalupe Ordoñez-Villegas, José Crossa, Karim Ammar, Carlos Guzmán
Diets very rich in cereals have been associated with micronutrient malnutrition, and the biofortification of them, has been proposed as one of the best approaches to alleviate the problem. Durum wheat is one of the main sources of calories and protein in many developing countries. In this study, 46 durum varieties grown under full and reduced irrigation, were analyzed for micronutrients and phytate content to determine the potential bioavailability of the micronutrients. The variation was 25.7-40.5mg/kg for iron and of 24...
December 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28761642/frequency-characteristics-and-outcomes-of-appendicular-neuroendocrine-tumors-a-cross-sectional-study-from-an-academic%C3%A2-tertiary-care-hospital
#16
Abdelrahman Abdelaal, Walid El Ansari, Issam Al-Bozom, Mahwish Khawar, Fakhar Shahid, Ammar Aleter, Mohammed Rasoul Abunuwar, Ayman El-Menyar
BACKGROUND: Appendicular neuroendocrine tumors (NET, Carcinoid tumors) of the appendix are rare and mostly diagnosed incidentally on the post-operative histopathological examination. NET are usually associated with good 5-year survival rates. We aimed to assess our experience for the diagnosis and management of NET over 11 years. METHOD: It is a retrospective chart review of all clinically suspected patients with acute appendicitis who underwent emergent appendectomy with intention to treat between January 2004-December 2014, and were clinically followed up until 2016...
September 2017: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/28761392/assessment-of-performance-indicators-of-a-radiotherapy-department-using-an-electronic-medical-record-system
#17
Yasir A Bahadur, Camelia Constantinescu, Ammar Y Bahadur, Ruba Y Bahadur
AIM: To retrospectively assess the performance indicators of our radiotherapy department and their temporal trends, using a commercially available electronic-medical-record (EMR) system. BACKGROUND: A recent trend in healthcare quality is to define and evaluate performance indicators of the service provided. MATERIALS AND METHODS: Patient and external-beam-radiotherapy-treatments data were retrieved using the Mosaiq EMR system from 1-January-2012 till 31-December-2015...
September 2017: Reports of Practical Oncology and Radiotherapy
https://www.readbyqxmd.com/read/28760032/minimally-invasive-transforaminal-lumbar-interbody-fusion-with-expandable-versus-static-interbody-devices-radiographic-assessment-of-sagittal-segmental-and-pelvic-parameters
#18
Ammar H Hawasli, Jawad M Khalifeh, Ajay Chatrath, Chester K Yarbrough, Wilson Z Ray
OBJECTIVE Minimally invasive transforaminal lumbar interbody fusion (MIS-TLIF) has been adopted as an alternative technique to hasten recovery and minimize postoperative morbidity. Advances in instrumentation technologies and operative techniques have evolved to maximize patient outcomes as well as radiographic results. The development of expandable interbody devices allows a surgeon to perform MIS-TLIF with minimal tissue disruption. However, sagittal segmental and pelvic radiographic outcomes after MIS-TLIF with expandable interbody devices are not well characterized...
August 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28758938/effects-of-pomegranate-juice-supplementation-on-oxidative-stress-biomarkers-following-weightlifting-exercise
#19
Achraf Ammar, Mouna Turki, Omar Hammouda, Hamdi Chtourou, Khaled Trabelsi, Mohamed Bouaziz, Osama Abdelkarim, Anita Hoekelmann, Fatma Ayadi, Nizar Souissi, Stephen J Bailey, Tarak Driss, Sourour Yaich
The aim of this study was to test the hypothesis that pomegranate juice supplementation would blunt acute and delayed oxidative stress responses after a weightlifting training session. Nine elite weightlifters (21.0 ± 1 years) performed two Olympic-Weightlifting sessions after ingesting either the placebo or pomegranate juice supplements. Venous blood samples were collected at rest and 3 min and 48 h after each session. Compared to the placebo condition, pomegranate juice supplementation attenuated the increase in malondialdehyde (-12...
July 29, 2017: Nutrients
https://www.readbyqxmd.com/read/28755384/biosorption-based-dispersive-liquid-liquid-microextraction-combined-with-polypyrrole-coated-magnetic-nanoparticles-as-an-effective-sorbent-for-the-extraction-of-ibuprofen-from-water-samples-using-magnetic-solid-phase-extraction
#20
Seyed Ammar Haeri, Shahryar Abbasi, Sami Sajjadifar
In this paper, biosorption based dispersive liquid-liquid microextraction in combination with magnetic solid phase extraction has been developed as a sample pretreatment method with high enrichment factor for the sensitive determination of ibuprofen in water samples. At first, magnetic Fe3 O4 /polypyrrole nanoparticles were synthesized and employed as sorbent for the magnetic solid phase extraction of ibuprofen. After the elution of the desired compound from the sorbent by using methanol, bio-sorption based dispersive liquid-liquid microextraction technique was performed on the obtained solution...
July 28, 2017: Electrophoresis
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