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Bayan Alemrayat, Abdelbary Elhissi, Husam M Younes
Letrozole (LTZ), an aromatase inhibitor used for the treatment of hormonally-positive breast cancer in postmenopausal women, has poor water solubility, rapid metabolism and a range of side effects. In this study, polymer-based nanoparticles (NPs) incorporating the drug have been designed and characterized, aimed to control the release, potentially maximize the therapeutic efficiency and minimize the side effects of the drug. LTZ was incorporated into Poly (D, L-Lactide) (PDLLA) NPs by employing the emulsion-solvent evaporation technique using a range of drug concentrations...
March 21, 2018: Pharmaceutical Development and Technology
Guido Veronese, Alessandro Pepe, Feda Almurnak, Alaa Jaradah, Husam Hamdouna
BACKGROUND: Many researchers have reported that exposure to war and ongoing political violence increases mental health problems in children. Results of studies have also shown a high prevalence (58-80%) of post-traumatic stress disorder in war-affected children living in the occupied Palestinian territory. The aim of this study was to estimate the direct and indirect effects of perceived life satisfaction on the consequences of children's exposure to trauma and the balance of positive and negative affect...
February 21, 2018: Lancet
Sandeep Dhindsa, Husam Ghanim, Paresh Dandona
No abstract text is available yet for this article.
March 12, 2018: Journal of Clinical Endocrinology and Metabolism
Faris Shweikeh, Stephanie Zyck, Fadi Sweiss, Ajleeta Sangtani, Mohammed Shweikeh, Husam Issa, Michael P Steinmetz, Georges Z Markarian
Study design: In this review, we present a case of Aspergillus spinal epidural abscess (ASEA) and review the literature. Objectives: To provide further insight on a rare condition. Setting: A description of a patient with ASEA in a 58-year-old woman that was successfully treated with conservative management is presented. Methods: Following case presentation, a literature search (MedLine and PubMed) and assessment of epidemiology, presentation, diagnosis, treatments, and outcomes is performed...
2018: Spinal Cord Series and Cases
Sarah Jonsson, Husam Oda, Eva Lundin, Jan Olsson, Annika Idahl
OBJECTIVE: Chlamydia trachomatis (C. trachomatis) infection has been suggested to promote epithelial ovarian cancer (EOC) development. This study sought to explore the presence of C. trachomatis DNA and chlamydial heat shock protein 60 (chsp60) in ovarian tissue, as well as anti-chlamydial IgG antibodies in plasma, in relation to subtypes of EOC. METHODS: This cross-sectional cohort consisted of 69 women who underwent surgery due to suspected ovarian pathology. Ovarian tissue and corresponding blood samples were collected at the time of diagnosis...
March 7, 2018: Translational Oncology
Sherif M Hamdy, Maged Abdel-Naseer, Nevin M Shalaby, Alaa Elmazny, Marian Girgis, Mona A Nada, Amr Hassan, Husam S Mourad, Mohamed I Hegazy, Ahmed Abdelalim, Nirmeen A Kishk, Noha T Abokrysha, Shaimaa A Genedy, Ehab A Essawy, Hatem S Shehata
Introduction: Although the frequency of pediatric-onset multiple sclerosis (POMS) has increased in recent decades, it is still highly uncommon, which creates a need for the involvement of more registries from various clinical centers. Objective: To characterize the demographic, clinical, and paraclinical features of Egyptian patients with POMS. Patients and methods: A retrospective chart review study was undertaken on 237 Egyptian patients with demyelinating events which started before the age of 18 years who attended one of five tertiary referral centers in Cairo, Egypt...
2018: Neuropsychiatric Disease and Treatment
Tarek A M Almabrouk, Anna D White, Azizah B Ugusman, Dominik S Skiba, Omar J Katwan, Husam Alganga, Tomasz J Guzik, Rhian M Touyz, Ian P Salt, Simon Kennedy
Background and aim: Perivascular adipose tissue (PVAT) positively regulates vascular function through production of factors such as adiponectin but this effect is attenuated in obesity. The enzyme AMP-activated protein kinase (AMPK) is present in PVAT and is implicated in mediating the vascular effects of adiponectin. In this study, we investigated the effect of an obesogenic high fat diet (HFD) on aortic PVAT and whether any changes involved AMPK. Methods: Wild type Sv129 (WT) and AMPKα1 knockout (KO) mice aged 8 weeks were fed normal diet (ND) or HFD (42% kcal fat) for 12 weeks...
2018: Frontiers in Physiology
Zhenwei Wang, Hyunho Kim, Husam N Alshareef
2D MXenes have shown great promise in electrochemical and electromagnetic shielding applications. However, their potential use in electronic devices is significantly less explored. The unique combination of metallic conductivity and hydrophilic surface suggests that MXenes can also be promising in electronics and sensing applications. Here, it is shown that metallic Ti3 C2 MXene with work function of 4.60 eV can make good electrical contact with both zinc oxide (ZnO) and tin monoxide (SnO) semiconductors, with negligible band offsets...
February 23, 2018: Advanced Materials
Hiroto Kitahara, Mackenzie McCrorey, Brooke Patel, Sarah Nisivaco, Husam H Balkhy
OBJECTIVE: Previous studies have shown that women carry a higher risk of morbidity and mortality after coronary artery bypass surgery. We investigated sex differences in risk factors and outcomes in our patients undergoing robotic beating heart connector totally endoscopic coronary artery bypass. METHODS: From July 2013 to April 2017, patients undergoing connector totally endoscopic coronary artery bypass were reviewed. We compared the outcomes of men versus women...
February 15, 2018: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
Mahmoud S Taha, Fahad M Almsned, Mohammed A Hassen, Ibrahim M Atean, Ahmed M Alwbari, Qasim K Alharbi, Marwah M Abdulkader, Husam S Almuhaish
OBJECTIVE: To review the demographic and pathological pattern of neuro-epithelial brain tumors in a tertiary referral center in the Eastern Province of Saudi Arabia and to compare the results of our study with other national and international studies. METHODS: This is a retrospective chart-review study of all patients with neuro-epithelial brain tumors referred and treated in our center between January 2010 and January 2015. The age, gender, tumor location, and histopathology were recorded...
January 2018: Neurosciences: the Official Journal of the Pan Arab Union of Neurological Sciences
Chuan Xia, Jing Guo, Peng Li, Xixiang Zhang, Husam N Alshareef
Cost-effective aqueous rechargeable batteries are attractive alternatives to non-aqueous cells for stationary grid energy storage. Among different aqueous cells, zinc-ion batteries (ZIBs), based on Zn2+ intercalation chemistry, stand out as they can employ high-capacity Zn metal as anode material. Herein, we report a layered calcium vanadium oxide bronze as cathode material for aqueous Zn batteries. For the storage of Zn2+ ions in aqueous electrolyte, we demonstrate that calcium based bronze structure can deliver a high capacity of 340 mAh g-1 at 0...
February 12, 2018: Angewandte Chemie
Paresh Dandona, Husam Ghanim
No abstract text is available yet for this article.
January 5, 2018: Journal of Diabetes and its Complications
Husam Shadid, Maureen Keckeisen, Ali Zarrinpar
Although enteral feeding in critically ill patients has been shown to be beneficial, reliable postpyloric placement of feeding tubes remains a challenge. The standard of care involves blind placement, frequently requiring multiple attempts, and radiographs. To evaluate the effect of electromagnetic-guided bedside placement in reducing time to establishment of feeding, lung placement, use of radiography, and cost, we initiated a prospective trial using electromagnetic-guided bedside placement and compared them to a retrospective cohort...
October 1, 2017: American Surgeon
Chuan Xia, Yungang Zhou, Dhinesh Babu Velusamy, Abdiaziz A Farah, Peng Li, Qiu Jiang, Ihab N Odeh, Zhiguo Wang, Xixiang Zhang, Husam N Alshareef
Since the first exfoliation and identification of graphene in 2004, research on layered ultrathin two-dimensional (2D) nanomaterials has achieved remarkable progress. Realizing the special importance of 2D geometry, we demonstrate that the controlled synthesis of non-layered nanomaterials in 2D geometry can yield some unique properties that otherwise cannot be achieved in these non-layered systems. Herein, we report a systematic study involving theoretical and experimental approaches to evaluate the Li-ion storage capability in 2D atomic sheets of non-layered molybdenum dioxide (MoO2)...
February 1, 2018: Nano Letters
Chaojie Cui, Weijin Hu, Xingxu Yan, Christopher Addiego, Wenpei Gao, Yao Wang, Zhe Wang, Linze Li, Yingchun Cheng, Peng Li, Xixiang Zhang, Husam N Alshareef, Tom Wu, Wenguang Zhu, Xiaoqing Pan, Lain-Jong Li
Enriching the functionality of ferroelectric materials with visible-light sensitivity and multiaxial switching capability would open up new opportunities for their applications in advanced information storage with diverse signal manipulation functions. We report experimental observations of robust intra-layer ferroelectricity in two-dimensional (2D) van der Waals layered -In2Se3 ultrathin flakes at room temperature. Distinct from other 2D and conventional ferroelectrics, In2Se3 exhibits intrinsically intercorrelated out-of-plane and in-plane polarization, where the reversal of the out-of-plane polarization by a vertical electric field also induces the rotation of the in-plane polarization...
January 29, 2018: Nano Letters
Paresh Dandona, Husam Ghanim, Ajay Chaudhuri
While the use of incretins, including GLP-1 receptor agonists and PDD-IV inhibitors, is well established in the treatment of type 2 diabetes, many other aspects of these agents are yet to be discovered and utilized for their potential clinical benefit. These include the potential role of GLP-1 receptor agonists in the induction of weight loss, blood pressure reduction, anti-inflammatory and nephro- and cardio-protective actions. Their potential benefit in type 1 diabetes is also being investigated. This review will attempt to comprehensively describe novel discoveries in the field of incretin pathophysiology and pharmacology beyond their classical role in the treatment of type 2 diabetes...
February 2018: Diabetes, Obesity & Metabolism
Isabel Tulloch, Husam Georges, Rahul Phadke, Carl Hardwidge
We describe the unique case of a patient being diagnosed with a thoracic extradural chordoid meningioma following her presentation with mild lower limb pyramidal weakness and a T8 sensory level. This is the first report of an extradural chordoid meningioma being identified in the thoracic spine. The tumour was successfully resected through a posterior thoracic laminectomy approach. Post-operatively, her neurological deficit resolved and to date she has not experienced a radiological recurrence. In this report, we review the literature and discuss this unusual tumour's characteristics and prognostic significance...
January 22, 2018: British Journal of Neurosurgery
Paresh Dandona, Husam Ghanim, Sanaa Abuaysheh, Kelly Green, Sandeep Dhindsa, Antoine Makdissi, Manav Batra, Nitesh D Kuhadiya, Ajay Chaudhuri
Purpose: We have previously demonstrated anti-inflammatory and antioxidant effects of exenatide. We have now hypothesized that exenatide also increases the plasma concentration of IL-1RA, an endogenous anti-inflammatory protein and modulates the Nrf-2-Keap-1-ARE system to induce key antioxidant enzymes to suppress inflammatory and oxidative stress. Methods: Twenty four obese type 2 diabetic patients on combined oral and insulin therapy were randomized to receive either exenatide 10μg or placebo b...
January 15, 2018: Journal of Clinical Endocrinology and Metabolism
Husam Ghanim, Sandeep Dhindsa, Sanaa Abuaysheh, Manav Batra, Nitesh Kuhadiya, Antoine Makdissi, Ajay Chaudhuri, Paresh Dandona
AIMS: One third of males with type 2 diabetes have hypogonadism, characterized by low total and free testosterone concentrations. We hypothesized that this condition is associated with a compensatory increase in the expression of androgen receptors (AR) and that testosterone replacement reverses these changes. We also measured estrogen receptor and aromatase expression. MATERIALS AND METHODS: This is a randomized double-blind placebo controlled trial. 32 hypogonadal and 32 eugonadal men with type 2 diabetes were recruited...
January 16, 2018: European Journal of Endocrinology
Ramzy Husam Rimawi, David J Murphy
No abstract text is available yet for this article.
February 2018: Critical Care Medicine
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