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https://www.readbyqxmd.com/read/29785773/molecular-tension-probes-to-investigate-the-mechanopharmacology-of-single-cells-a-step-toward-personalized-mechanomedicine
#1
Kornelia Galior, Victor Pui-Yan Ma, Yang Liu, Hanquan Su, Nusaiba Baker, Reynold A Panettieri, Cherry Wongtrakool, Khalid Salaita
Given that dysregulation of mechanics contributes to diseases ranging from cancer metastasis to lung disease, it is important to develop methods for screening the efficacy of drugs that target cellular forces. Here, nanoparticle-based tension sensors are used to quantify the mechanical response of individual cells upon drug treatment. As a proof-of-concept, the activity of bronchodilators is tested on human airway smooth muscle cells derived from seven donors, four of which are asthmatic. It is revealed that airway smooth muscle cells isolated from asthmatic donors exhibit greater traction forces compared to the control donors...
May 22, 2018: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/29785161/prevalence-and-psychological-stress-in-recurrent-aphthous-stomatitis-among-female-dental-students-in-saudi-arabia
#2
Muhammed Ajmal, Lujain Ibrahim, Nada Mohammed, Heba Al-Qarni
Introduction: Recurrent Aphthous Stomatitis (RAS) is a common oral mucosal disorder which is characterized by recurrent ulcerations mainly confined to non-keratinized oral mucosa. Though the exact etiology is imprecise, stress and anxiety were found to be linked with the onset of RAS. The present study was directed to know the prevalence of RAS among female dental students in King Khalid University, to find out the association between RAS and psychological stress and the effectiveness of Hospital Anxiety and Depression scale (HADS) in finding out the psychological profile of RAS patients...
2018: Clujul Medical (1957)
https://www.readbyqxmd.com/read/29783175/hiv-viral-suppression-in-oman-encouraging-progress-toward-achieving-the-united-nations-third-90
#3
Ali Elgalib, Samir Shah, Zeyana Al-Habsi, Maha Al-Fouri, Halima Al-Sawafi, Jalila Al-Noumani, Adil Al-Baloushi, Saad Al-Alawi, Salma Al-Badi, Zainab Mohammed, Jokha Al-Ghafri, Asma Suleimani, Huda Al-Mashani, Jyothish Raju, Saada Al-Riyami, Muna Al-Shukri, Abdul Wahab, Bilal Hussain, Khalifa Al-Naabi, Anantha Narayan, Noreen Oliveros, George Prasad, Ahmed Hussein, Rajeev Kashyp, Khalid Al-Shardi, Ahmed Nada, Shakil Akhwand, Bina Kamble, Kawthar Al-Aamri, Suad Al-Mukhaini, Hanan Al-Kindi, Faryal Khamis, Amal Al-Maani, Idris Al-Abaidani, Seif Al-Abri
OBJECTIVE: To assess the impact of capacity-building interventions introduced by the Oman National AIDS Programme on the quality of HIV care in the country. METHODS: HIV viral load (VL) suppression and loss to follow-up (LTFU) rates were calculated for the period before (in December 2015; n=1098) and after (in June 2017; n=1185) the introduction of the interventions: training, support, and care pathway development. Three HIV VL cuts-offs at last measurement in the year of interest were used to define VL suppression...
May 18, 2018: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/29782401/is-neuraxial-anesthesia-appropriate-for-cesarean-delivery-in-all-cases-of-morbidly-adherent-placenta
#4
Mohamed Mohamed Tawfik, Mohamed Ahmed Tolba, Sarah Salah Moawad, Khalid Samir Ismail, Mohamed Elsayed Taman
No abstract text is available yet for this article.
May 17, 2018: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29780356/physiological-and-molecular-mechanisms-of-methionine-restriction
#5
REVIEW
Mary Neslund Latimer, Khalid Walid Freij, Beth M Cleveland, Peggy R Biga
Methionine restriction (MR) has been studied extensively over the last 25 years for its role in altering metabolic hallmarks of disease. Animals subjected to MR, display changes in metabolic flexibility demonstrated by increases in energy expenditure, glucose tolerance, and lifespan. These changes have been well characterized in a number of model systems and significant progress has been made in understanding how hepatic fibroblast growth factor 21 links MR to several components of its metabolic phenotype...
2018: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29779787/a-thermodynamic-funnel-drives-bacterial-lipopolysaccharide-transfer-in-the-tlr4-pathway
#6
Roland G Huber, Nils A Berglund, Vasileios Kargas, Jan K Marzinek, Daniel A Holdbrook, Syma Khalid, Thomas J Piggot, Artur Schmidtchen, Peter J Bond
The Gram-negative bacterial outer membrane contains lipopolysaccharide, which potently stimulates the mammalian innate immune response. This involves a relay of specialized complexes culminating in transfer of lipopolysaccharide from CD14 to Toll-like receptor 4 (TLR4) and its co-receptor MD-2 on the cell surface, leading to activation of downstream inflammatory responses. In this study we develop computational models to trace the TLR4 cascade in near-atomic detail. We demonstrate through rigorous thermodynamic calculations that lipopolysaccharide molecules traversing the receptor cascade fall into a thermodynamic funnel...
April 25, 2018: Structure
https://www.readbyqxmd.com/read/29779484/genetics-and-epigenetics-pathogenesis-of-beh%C3%A3-et-s-syndrome
#7
Jibran Sualeh Muhammad, Muhammad Ishaq, Khalid Ahmed
Behçet's syndrome (BS) is characterized numerous systemic manifestations, is known for its ability to affect both, arteries and the veins. However, the etiology of BS is only partially understood, and previous studies have demonstrated a role of genetic and epigenetic factors contributes to disease pathophysiology. Several studies have implicated the T cells and monocytes, especially when stimulated by seat shock proteins and streptococcal antigen. Furthermore, during disease exacerbations adenosine deaminase has an important role in lymphocyte proliferation, maturation, and differentiation, is activated in Behçet's syndrome...
May 20, 2018: Current Rheumatology Reviews
https://www.readbyqxmd.com/read/29778882/insight-into-the-interactions-of-proteinase-inhibitor-alpha-2-macroglobulin-with-hypochlorite-thermal-analysis-and-biophysical-approach
#8
Tooba Siddiqui, Mohammad Khalid Zia, Syed Saqib Ali, Haseeb Ahsan, Fahim Halim Khan
Hypochlorous acid, an active bleaching agent is one of the major oxidants produced by neutrophils under physiological conditions. It is a potent reactive oxygen species (ROS) which causes oxidation of biomolecules. Treatment of proteins with hypochlorite results in direct oxidative damage to proteins. Alpha-2-macroglobulin is a major proteinase inhibitor and it can inhibit proteinase of any kind regardless of specificity and catalytic mechanism. The proteinase-antiproteinase balance plays an important role in mediating inflammation associated tissue destruction...
May 17, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29778707/synthesis-spectroscopic-single-crystal-diffraction-and-potential-nonlinear-optical-properties-of-novel-pyrazoline-derivatives-interplay-of-experimental-and-computational-analyses
#9
Muhammad Nadeem Arshad, Abdulhadi Salih Birinji, Muhammad Khalid, Abdullah M Asiri, Khalid A Al-Amry, Faisal M S Aqlan, Ataualpa A C Braga
Pyrazoline are widely being studied due to their potential applications in chemical field. Herein, five pyrazolines compounds were synthesized and characterized spectroscopically using nuclear magnetic resonance techniques (1 H NMR &13 C NMR) to determine the structures of molecules along-with UV-Visible and infrared (FT-IR) studies for additional spectroscopic support in characterization of entitle synthesized molecules. Unit cells, specific space groups, bond lengths, bond angles and hydrogen bonding interactions were determined by the x-ray diffraction studies...
May 16, 2018: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/29778537/a-new-indanedione-derivative-alleviates-symptoms-of-diabetes-by-modulating-rage-nf-kappab-pathway-in-db-db-mice
#10
Gulnaz Khan, Meha Fatima Aftab, Bilquees Bano, Khalid Mohammed Khan, Munazza Murtaza, Sonia Siddiqui, M Hafizur Rehman, Rizwana Sanaullah Waraich
Accumulating evidence indicates that a number of tissues are damaged due to build-up of abnormal amount of Advanced Glycation End products (AGEs) in several diseases including diabetes. Currently AGE inhibitors are scarce in clinical use indicating a need for development of new anti-AGE agents. The aim of the current study is to identify the new AGE inhibitors and to decipher their mechanism of action for alleviating symptoms of diabetes in mice. Among several derivatives, one of the derivatives of indanedione, IDD-24 demonstrated highest inhibition of AGE formation and AGE mediated reactive oxygen species production in HepG-2 and mature 3T3-L1 adipocytes...
May 17, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29777682/inhibition-of-bet-bromodomains-restores-corticosteroid-responsiveness-in-a-mixed-granulocytic-mouse-model-of-asthma
#11
Ahmed Nadeem, Sheikh F Ahmad, Naif O Al-Harbi, Nahid Siddiqui, Khalid E Ibrahim, Sabry M Attia
Asthma is a heterogeneous disease characterized by different endotypes/phenotypes. Th2/Th17 driven mixed granulocytic asthma is one of them and shows resistance to corticosteroid therapy. Bromodomain and extra-terminal (BET) proteins are required for differentiation of Th17 cells which play a pivotal role in neutrophilic inflammation. Therefore, we sought to characterize the differential effects of BET inhibitor versus corticosteroids, and their potential synergism in cockroach allergen extract (CE)-induced mixed granulocytic (eosinophilic and neutrophilic) mouse model of asthma having Th2/Th17 endotype...
May 16, 2018: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29777634/characterisation-of-the-outer-membrane-proteome-of-francisella-noatunensis-subsp-orientalis
#12
Khalid Shahin, Kim D Thompson, Neil F Inglis, Kevin Mclean, Jose Gustavo Ramirez-Paredes, Sean J Monaghan, Rowena Hoare, Michael Fontaine, Matthijs Metselaar, Alexandra Adams
AIMS: The aims of the current study were to characterise the outer membrane proteins (OMPs) of Francisella noatunensis subsp. orientalis (Fno) STIR-GUS-F2f7, and identify proteins recognised by sera from tilapia, Oreochromis niloticus, (L) that survived experimental challenge with Fno. METHODS AND RESULTS: The composition of the OMPs of a virulent strain of Fno (STIR-GUS- F2f7), isolated from diseased red Nile tilapia in UK, was examined. The sarcosine-insoluble OMP fraction was screened with tilapia hyper-immune sera by western blot analysis following separation of the proteins by 1D SDS-PAGE...
May 19, 2018: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/29777061/asthma-in-low-income-and-middle-income-countries-an-urgent-call-to-action
#13
EDITORIAL
J Mark FitzGerald, Khalid Al Efraij
No abstract text is available yet for this article.
May 18, 2018: Thorax
https://www.readbyqxmd.com/read/29776933/primary-cutaneous-osteosarcoma-of-the-scalp
#14
Yusra Al-Janabi, Khalid Al-Janabi, Kallirroi Tzafetta, Mahir Petkar
Primary cutaneous extraskeletal osteosarcoma (PCEO) is a rare malignant neoplasm with less than 20 cases reported in the literature to date. Presenting as a nodule or mass on the skin, commonly at sites of previous trauma or radiation, these lesions are differentiated from other neoplasms through their characteristic microscopic appearance. This report highlights a case of PCEO in a 75-year-old man with a history of squamous cell carcinoma (SCC) of the scalp. Histological examination of a scalp nodule in the region of a previously excised SCC revealed proliferation of osteoid surrounded by malignant osteocytes...
May 18, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29776750/safety-and-immunogenicity-of-a-vi-dt-typhoid-conjugate-vaccine-phase-i-trial-in-healthy-filipino-adults-and-children
#15
Maria Rosario Capeding, Samuel Teshome, Tarun Saluja, Khalid Ali Syed, Deok Ryun Kim, Ju Yeon Park, Jae Seung Yang, Yang Hee Kim, Jiwook Park, Sue-Kyoung Jo, Yun Chon, Sudeep Kothari, Seon-Young Yang, Dong Soo Ham, Ji Hwa Ryu, Hee-Seong Hwang, Ju-Hwan Mun, Julia Lynch, Jerome Kim, Hun Kim, Jean-Louis Excler, Sushant Sahastrabuddhe
BACKGROUND: Typhoid fever remains a major public health problem in low- and middle-income countries where children aged 2-14 years bear the greatest burden. Vi polysaccharide is poorly immunogenic in children <2 years of age, and protection in adults is modest. The limitations of Vi polysaccharide vaccines can be overcome by conjugation of the Vi to a carrier protein. A typhoid conjugate vaccine composed of Vi polysaccharide conjugated to diphtheria toxoid (Vi-DT) has been developed...
May 15, 2018: Vaccine
https://www.readbyqxmd.com/read/29776663/barriers-and-facilitators-to-diabetes-self-management-in-a-primary-care-setting-patient-perspectives
#16
Rahul Khairnar, Khalid M Kamal, Vincent Giannetti, Nilanjana Dwibedi, Jamie McConaha
BACKGROUND: Diabetes self-management (DSM) is a key element in the overall management of type-2 diabetes (T2DM). Identifying barriers and facilitators to DSM and addressing them is a critical step in achieving improved health outcomes in this population. OBJECTIVE: To assess patient reported barriers and facilitators to self-management of T2DM in a primary care setting. METHODS: This cross sectional study combined patient survey data with electronic medical record (EMR) data...
May 9, 2018: Research in Social & Administrative Pharmacy: RSAP
https://www.readbyqxmd.com/read/29775717/temozolomide-loaded-nano-lipid-based-chitosan-hydrogel-for-nose-to-brain-delivery-characterization-nasal-absorption-histopathology-and-cell-line-study
#17
Anam Khan, Mohd Aqil, Syed Sarim Imam, Abdul Ahad, Yasmin Sultana, Asgar Ali, Khalid Khan
The present study was designed to develop and optimize Temozolomide nano lipid chitosan gel delivery (TMZNLCHG) to target the brain through nasal route. The formulation was developed using chitosan as a gelling agent and Vit E: gelucire 44/14 blend as lipid. The formulations were evaluated for particle size, drug loading, morphology, drug release, nasal diffusion, cell line study, and histopathology study. The average particle size, PDI, %EE, loading, drug release, and % permeation were found to be 134 nm, 0...
May 15, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29773013/critical-review-on-curcumin-as-a-therapeutic-agent-from-traditional-herbal-medicine-to-an-ideal-therapeutic-agent
#18
Muhammad Usman Akbar, Kanwal Rehman, Khalid Mahmood Zia, Muhammad Imran Qadir, Muhammad Sajid Hamid Akash, Muhammad Ibrahim
Traditionally, many natural medicinal plants have been used to treat a variety of diseases since ancient times and are considered a potential source of phytochemicals for the development of new drugs. One of these is curcumin, which is an easily accessible, inexpensive, and nontoxic bioactive compound. Curcumin is a very important, naturally occurring, and highly lipophilic and phenolic substance derived from the rhizomes of plant Curcuma longa, a member of the Zingiberaceae (ginger) family, which is mostly used as a curry spice, flavoring agent, insect repellent, coloring agent in food, traditional drug, and ingredient in cosmetics...
2018: Critical Reviews in Eukaryotic Gene Expression
https://www.readbyqxmd.com/read/29772470/synthesis-molecular-docking-and-xanthine-oxidase-inhibitory-activity-of-5-aryl-1h-tetrazoles
#19
Itrat Fatima, Humaira Zafar, Khalid Mohammed Khan, Syed Muhammad Saad, Sumaira Javaid, Shahnaz Perveen, M Iqbal Choudhary
5-Aryl-1H-tetrazoles (1-24) were synthesized and screened for their xanthine oxidase (XO) inhibitory activity using allopurinol as standard inhibitor (IC50  = 2.0 ± 0.01 µM). Six compounds 3, 4, 5, 9, 21, and 24 exhibited significant to weak activities with IC50 values in the range of 7.4-174.2 µM. Active compounds were further subjected to kinetic and molecular docking studies to deduce their modes of inhibition, and to study their interactions with the protein (XO) at atomic level, respectively...
May 1, 2018: Bioorganic Chemistry
https://www.readbyqxmd.com/read/29772370/does-nasal-carriage-of-staphylococcus-aureus-increase-the-risk-of-post-operative-infections-after-elective-spine-surgery-do-most-infections-occur-in-carriers
#20
Owoicho Adogwa, Victoria D Vuong, Aladine A Elsamadicy, Daniel T Lilly, Shyam A Desai, Syed Khalid, Joseph Cheng, Carlos A Bagley
BACKGROUND: Wound infections following adult spinal deformity surgery place a high toll on patients, providers, and the healthcare system. Staphylococcus aureus is a common cause of postoperative wound infections, and nasal colonization by this organism may be an important factor development of surgical site infections (SSI's). The aim is to investigate whether post-operative surgical site infections after elective spine surgery occur at a higher rate in patients with Methicillin-Resistant Staphylococcus Aureus (MRSA) nasal colonization...
May 14, 2018: World Neurosurgery
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