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A. Salama

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https://www.readbyqxmd.com/read/28651053/hexafluorophosphate-based-solutions-for-mg-batteries-and-the-importance-of-chlorides
#1
Ivgeni Shterenberg, Michael Salama, Yosef Gofer, Doron Aurbach
The selection of viable conventional magnesium salts in electrolyte solutions for Mg secondary batteries is very limited. Reversible magnesium deposition was only demonstrated with MgTFSI2, in ethereal solutions. A recent report has suggested that Mg can be reversibly deposited from a solution of Mg(PF6)2 in THF and acetonitrile. In this paper, we dispute that claim and show that PF6(-) anions passivate Mg anodes and completely inhibit any Mg deposition/dissolution process. We show that addition of chlorides suppresses the passivation phenomena and allows for reversible Mg deposition/dissolution processes to commence...
June 26, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28638581/images-in-clinical-medicine-tophi
#2
Amr Salama, Richard Alweis
Tophi (plural of tophus, Latin for "stone") are stone-like deposits of monosodium urate in the soft tissues, synovial tissues, or in bones near the joints. They are pathognomonic for gout, the most common inflammatory arthritis in the United States, with an estimated lifetime prevalence of 4%. It is usually the end result of loss of the balance between uric acid production and excretion. It can be found anywhere in the body especially in areas of friction or trauma. It is usually painless and rarely to present as the initial manifestation of gout...
March 2017: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/28633284/determination-of-some-%C3%AE-blockers-and-%C3%AE-2-agonists-in-plasma-and-urine-using-liquid-chromatography-tandem-mass-spectrometry-and-solid-phase-extraction
#3
Alaa A Salem, Ibrahim Wasfi, Salama S Al-Nassib, Mahmoud Allawy Mohsin, Nawal Al-Katheeri
A highly sensitive method for the determinations of acebutolol, clenbuterol, nadolol, oxprenolol, propranolol, terbutaline and timolol β-blockers and β2-agonists in plasma and urine was developed. The method was optimized using electrospray ionization liquid chromatography-tandem mass spectrometry (LC-ESI-MS-MS) and clean screen solid phase extraction cartridges. Matrix effect was reduced by removing co-extractives from the SPE cartridges using methanol prior to drugs' elution. Using blood and serum matrices for calibration and applying the internal standard method has also contributed to the reduction of matrix effect...
June 13, 2017: Journal of Chromatographic Science
https://www.readbyqxmd.com/read/28633130/synthesis-screening-and-pro-apoptotic-activity-of-novel-acyl-spermidine-derivatives-on-human-cancer-cell-lines
#4
Syed Shoeb Razvi, Hani Choudhry, Said Salama Moselhy, Taha Abduallah Kumosani, Mohammed Nihal Hasan, Mazin A Zamzami, Khalid Omer Abualnaja, Abdulrahman Labeed Al-Malki, Mahmoud Alhosin, Tadao Asami
The polyamines putrescine, spermidine, and spermine are polycationic, alkyl polyamines which play a significant role in eukaryotic cell proliferation. The polyamine metabolism and function are dysregulated in tumor cells making them an attractive therapeutic target by employing polyamine analogs. These analogs have a high degree of similarity with the structure of polyamines but not with their function. Multidrug resistance is a major factor in the failure of many chemotherapeutic drugs which necessitates further research and exploration of better novel alternatives...
June 19, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28633041/study-of-platelet-activation-hypercoagulable-state-and-the-association-with-pulmonary-hypertension-in-children-with-%C3%AE-thalassemia
#5
REVIEW
Mahmoud Alhosiny Fayed, Hesham El-Sayed Abdel-Hady, Mona Mohammed Hafez, Osama Saad Salama, Youssef Abdelhalim Al-Tonbary
BACKGROUND: The increased survival rate of thalassemic patients has led to unmasking of management related complications which were infrequently encountered. OBJECTIVE: Study the increased coagulation and platelet activation in children with β-thalassemia, to analyze the factors that lead to such hypercoagulable state and to study pulmonary hypertension (PH) in conjunction with platelet activation and hypercoagulable state in children with β-thalassemia. METHODS: 36 Egyptian children with β-thalassemia with a mean age of 9...
June 15, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28630687/emerging-antimicrobial-resistance-in-early-and-late-onset-neonatal-sepsis
#6
Lamiaa Mohsen, Nermin Ramy, Dalia Saied, Dina Akmal, Niveen Salama, Mona M Abdel Haleim, Hany Aly
BACKGROUND: Compared to developed countries, the use of antimicrobials in Egypt is less regulated and is available over the counter without the need for prescriptions. The impact of such policy on antimicrobial resistance has not been studied. This study aimed to determine the prevalence of early and late onset sepsis, and the frequency of antimicrobial resistance in a major referral neonatal intensive care unit (NICU). METHODS: The study included all neonates admitted to the NICU over a 12-month period...
2017: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/28617150/atorvastatin-loaded-nanostructured-lipid-carriers-nlcs-strategy-to-overcome-oral-delivery-drawbacks
#7
Mohammed Elmowafy, Hany M Ibrahim, Mohammed A Ahmed, Khaled Shalaby, Ayman Salama, Hossam Hefesha
Atorvastatin (AT) is a widely used lipid-regulating drug to reduce cholesterol and triglycerides. Its poor aqueous solubility and hepatic metabolism require development of drug delivery systems able to improve its solubility and bypass hepatic effect. For this purpose, atorvastatin nanostructured lipid carriers (AT-NLCs) were prepared and characterized. AT-NLCs were prepared by emulsification using high-speed homogenization followed by ultrasonication. The prepared NLCs showed particle size between 162.5 ± 12 and 865...
November 2017: Drug Delivery
https://www.readbyqxmd.com/read/28616236/effect-of-applied-energy-in-renal-sympathetic-denervation-with-magnetic-resonance-guided-focused-ultrasound-in-a-porcine-model
#8
Jill Shea, Joshua de Bever, Eugene Kholmovski, Hannah Beal, J Rock Hadley, Emilee Minalga, Mohamed E Salama, Nassir F Marrouche, Allison Payne
BACKGROUND: Past catheter-based and focused ultrasound renal denervation studies have indicated that procedure efficacy is related to the number of ablations performed or the amount of energy used for the ablation. This study extends those prior results and investigates energy level effects on the efficacy of MR guided focused ultrasound renal denervation performed in a porcine model. METHODS: Twenty-four normotensive pigs underwent unilateral denervation at three intensity levels...
2017: Journal of Therapeutic Ultrasound
https://www.readbyqxmd.com/read/28610198/review-of-robber-flies-of-the-genus-i-stichopogon-i-loew-diptera-asilidae-stichopogoninae-from-egypt
#9
Gawhara M M Abu El-Hassan, Haitham B M Badrawy, Sohair M Gad Allah, Ahmed M Soliman, Mohamed S Salama, Salwa K Mohammad
The Egyptian fauna of the asilid genus Stichopogon Loew is revised. Nine species are recognized including two new records, Stichopogon deserti Theodor, 1980 and S. scaliger Loew, 1847. A key to species, lists of material examined and their distribution are included. The occurrence of S. maroccanus in Egypt is discussed and clarified.
March 9, 2017: Zootaxa
https://www.readbyqxmd.com/read/28606043/a-study-of-extrapyramidal-manifestations-accompanying-decompensated-viral-hepatic-cirrhosis-patients
#10
Samia Ashour, Ahmed Gaber, Osama Aboelfotoh Aly, Saeed Hashem, Mohamed Salama, Ali Shalash
Despite the high prevalence of viral hepatic cirrhosis all over the world, the characteristic motor features of related Parkinsonism (extrapyramidal manifestations) are not well described. The current study aimed to characterize such disorder in a sample of Egyptian patients with chronic viral liver disease (CLD), and their clinical correlates. METHODS: Ninety-six (96) patients with CLD were examined for presence of extrapyramidal signs. Parkinsonism was assessed using the UPDRS-III scale and its sub scores...
June 12, 2017: Reviews on Recent Clinical Trials
https://www.readbyqxmd.com/read/28601636/the-angiogenic-factor-egfl7-enhances-thymogenesis-by-activating-flt3-signaling
#11
Yousef Salama, Koichi Hattori, Beate Heissig
Thymic regeneration is a crucial function that allows for the generation of mature T cells after myelosuppression like irradiation. However molecular drivers involved in this process remain undefined. Here, we report that the angiogenic factor, epidermal growth factor-like domain 7 (Egfl7), is expressed on steady state thymic endothelial cells (ECs) and further upregulated under stress like post-irradiation. Egfl7 overexpression increased intrathymic early thymic precursors (ETPs) and expanded thymic ECs. Mechanistically, we show that Egfl7 overexpression caused Flt3 upregulation in ETPs and thymic ECs, and increased Flt3 ligand plasma elevation in vivo...
June 7, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28599251/trehalose-enhances-the-antitumor-potential-of-methotrexate-against-mice-bearing-ehrlich-ascites-carcinoma
#12
Mohammed A El-Magd, Abeer Khamis, Samah K Nasr Eldeen, Wafaa M Ibrahim, Afrah F Salama
Methotrexate (MTX) is commonly used as a standard chemotherapy for many cancers, however its usage required high doses thereby leading to severe adverse effects. In a trial to find a suitable neoadjuvant therapy to decrease MTX dosage without lowering its chemotherapeutic efficacy, we investigated the antitumor effect of trehalose (TRE) on mice bearing Ehrlich ascites carcinoma (EAC) and checked whether TRE can enhance the antitumor potential of MTX. Treatment with TRE induced anti-tumor effects against EAC as reveled by a remarkable decrease in body weight, tumor volume, count of viable tumor cells, expression of the anti-apoptotic gene Bcl2 as well as by a significant increase in mean survival time, life span and expression of the apoptotic gene caspase-3...
August 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28593752/transparent-flash-memory-using-single-ta2o5-layer-for-both-charge-trapping-and-tunneling-dielectrics
#13
Mrinal Kanti Hota, Fwzah H Alshammari, Khaled N Salama, Husam N Alshareef
We report reproducible multibit transparent flash memory in which a single solution-derived Ta2O5 layer is used simultaneously as charge trapping and tunneling layer. This is different from conventional flash cells, where two different dielectric layers are typically used. Under optimized programming/erasing operations, the memory device shows excellent programmable memory characteristics with a maximum memory window of ~10 V. Moreover, the flash memory device shows a stable 2-bit memory performance, good reliability, including data retention for more than 10(4) sec and endurance performance for more than 100 cycles...
June 8, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28579346/combined-spontaneous-bacterial-empyema-and-peritonitis-in-cirrhotic-patients-with-ascites-and-hepatic-hydrothorax
#14
Anwar Mohamed, Mohammed Atef, Ayman Alsebaey, Mahmoud Musa Elhabshy, Mohsen Salama
BACKGROUND AND STUDY AIMS: Spontaneous bacterial empyema (SBEM) is an underestimated condition in patients with ascites and hepatic hydrothorax with a high mortality. This study aimed to find whether spontaneous bacterial peritonitis (SBP) is a prerequisite for SBEM. PATIENTS AND METHODS: 3000 HCV-related cirrhotic patients with ascites and hydrothorax were screened for the presence of SBP (ascitic fluid neutrophils >250/mm(3)) and SBEM (positive pleural fluid culture and neutrophils >250/mm(3) or negative pleural fluid culture and neutrophils >500/mm(3) with no evidence of pneumonia/parapneumonic effusion on chest radiograph or CT)...
June 1, 2017: Arab Journal of Gastroenterology: the Official Publication of the Pan-Arab Association of Gastroenterology
https://www.readbyqxmd.com/read/28558992/molecular-surveillance-of-theileria-parasites-of-livestock-in-oman
#15
Amira Al-Fahdi, Badar Alqamashoui, Salama Al-Hamidhi, Onur Kose, Mohammed H Tageldin, Patrick Bobade, Eugene H Johnson, Abdel-Rahim Hussain, Tulin Karagenc, Andy Tait, Brian Shiels, Huseyin Bilgin Bilgic, Hamza Babiker
BACKGROUND: Theileriosis is one of the most prevalent infectious diseases of livestock in the Arabian Peninsula, and causes high rates of mortality and morbidity in sheep and cattle. However, there is a paucity of information on the distribution of Theileria spp. over the whole region and their impact on different hosts. The present study carried out a country-wide molecular survey for Theileria spp. of livestock in Oman across four governorates. The aim of the survey was to define the prevalence of Theileria spp...
May 21, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28551729/use-of-platelet-rich-fibrin-in-regenerative-dentistry-a-systematic-review
#16
REVIEW
Richard J Miron, Giovanni Zucchelli, Michael A Pikos, Maurice Salama, Samuel Lee, Vincent Guillemette, Masako Fujioka-Kobayashi, Mark Bishara, Yufeng Zhang, Hom-Lay Wang, Fatiha Chandad, Cleopatra Nacopoulos, Alain Simonpieri, Alexandre Amir Aalam, Pietro Felice, Gilberto Sammartino, Shahram Ghanaati, Maria A Hernandez, Joseph Choukroun
OBJECTIVES: Research across many fields of medicine now points towards the clinical advantages of combining regenerative procedures with platelet-rich fibrin (PRF). This systematic review aimed to gather the extensive number of articles published to date on PRF in the dental field to better understand the clinical procedures where PRF may be utilized to enhance tissue/bone formation. MATERIALS AND METHODS: Manuscripts were searched systematically until May 2016 and separated into the following categories: intrabony and furcation defect regeneration, extraction socket management, sinus lifting procedures, gingival recession treatment, and guided bone regeneration (GBR) including horizontal/vertical bone augmentation procedures...
July 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28544026/immobilization-and-high-platelet-count-are-associated-with-thromboembolic-complications-in-heparin-induced-thrombocytopenia
#17
Juliane Bolbrinker, Edeltraut Garbe, Antonios Douros, Matthias Huber, Elisabeth Bronder, Andreas Klimpel, Frank Andersohn, Oliver Meyer, Abdulgabar Salama, Reinhold Kreutz
PURPOSE: Immune-mediated heparin-induced thrombocytopenia (HIT type II, HIT) is a potentially serious adverse drug reaction characterized by an increased risk of venous and arterial thrombosis. This study aimed to identify risk factors associated with the development of these complications. METHODS: Our study cohort included patients with HIT assembled in our pharmacovigilance center by reports from 51 collaborating hospitals in Berlin, Germany. To identify risk factors for thromboembolic complications, patients with thromboembolic events (cases) were compared to those without thromboembolic events (controls) in a case-control design...
May 24, 2017: Pharmacoepidemiology and Drug Safety
https://www.readbyqxmd.com/read/28533858/-bone-tuberculosis-mimicking-malignancy-a-case-report
#18
Tarik Salama, El Mohtadi Aghoutane, Redouane El Fezzazi
Bone tuberculosis may mimic malignant tumor. We here report the case of a 4-year old child with bone tuberculosis mimicking femoral osteosarcoma. The diagnosis was rectified thanks to anatomo-pathologic examination. This case study underlines the importance of knowing the clinical and radiological aspects of bone tuberculosis which can mimic malignant tumor. In order to avoid any delay in diagnosis, surgeons, pediatricians and radiologists should know that tuberculosis can mimic many pathologies, both clinically and radiologically...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28526188/corrigendum-to-mesh-versus-acellular-dermal-matrix-in-immediate-implant-based-breast-reconstruction-a-prospective-randomized-trial-eur-j-surg-oncol-42-5-2016-665-671
#19
D Gschwantler-Kaulich, P Schrenk, V Bjelic-Radisic, K Unterrieder, C Leser, A Fink-Retter, M Salama, C Singer
No abstract text is available yet for this article.
May 16, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28524058/efficacy-of-hospital-inpatient-topical-treatment-for-severe-adult-atopic-dermatitis-a-retrospective-study-of-56-patients
#20
Marie Masson Regnault, Salama Hegazy, Maria Polina Konstantinou, Claire Uthurriague, Cristina Bulaï Livideanu, Marie Tauber, Carle Paul
No abstract text is available yet for this article.
May 19, 2017: European Journal of Dermatology: EJD
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