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https://www.readbyqxmd.com/read/28624622/preclinical-anti-cancer-activity-and-multiple-mechanisms-of-action-of-a-cationic-silver-complex-bearing-n-heterocyclic-carbene-ligands
#1
Simon J Allison, Maria Sadiq, Efstathia Baronou, Patricia A Cooper, Chris Dunnill, Nikolaos T Georgopoulos, Ayşe Latif, Samantha Shepherd, Steve D Shnyder, Ian J Stratford, Richard Wheelhouse, Charlotte Willans, Roger M Phillips
Organometallic complexes offer the prospect of targeting multiple pathways that are important in cancer biology. Here, the preclinical activity and mechanism(s) of action of a silver-bis(N-heterocyclic carbine) complex (Ag8) were evaluated. Ag8 induced DNA damage via several mechanisms including topoisomerase I/II and thioredoxin reductase inhibition and induction of reactive oxygen species. DNA damage induction was consistent with cytotoxicity observed against proliferating cells and Ag8 induced cell death by apoptosis...
June 14, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28619543/circumferential-three-dimensional-printed-tracheal-grafts-research-model-feasibility-and-early-results
#2
Faiz Y Bhora, Erik E Lewis, Sadiq S Rehmani, Adil Ayub, Wissam Raad, Adnan M Al-Ayoubi, Robert S Lebovics
BACKGROUND: Methods for tracheal graft research have presented persistent challenges to investigators, and three-dimensional (3D)-printed biosynthetic grafts offer one potential development platform. We aimed to develop an efficient research platform for customizable circumferential 3D-printed tracheal grafts and evaluate feasibility and early structural integrity with a large-animal model. METHODS: Virtual 3D models of porcine subject tracheas were generated using preoperative computed tomography scans...
June 13, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28615164/london-mayor-sadiq-khan-how-cities-can-act-on-air-pollution
#3
(no author information available yet)
No abstract text is available yet for this article.
June 14, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28614401/hepatitis-b-testing-and-treatment-in-hiv-patients-in-the-gambia-compliance-with-international-guidelines-and-clinical-outcomes
#4
Gibril Ndow, Mindy L Gore, Yusuke Shimakawa, Penda Suso, Abdoulie Jatta, Saydiba Tamba, Amina Sow, Coumba Touré-Kane, Fouzia Sadiq, Saihou Sabally, Ramou Njie, Mark R Thursz, Maud Lemoine
BACKGROUND: Compliance with WHO guidelines on HBV screening and treatment in HIV-coinfected patients is often challenging in resource limited countries and has been poorly assessed in sub-Saharan Africa. METHODS: Between 2015 and 2016, we assessed physician's compliance with WHO guidelines on HIV-HBV coinfection in the largest HIV clinic in The Gambia, and the hepatic outcomes in HIV-HBV coinfected patients as compared to randomly selected HIV-monoinfected controls...
2017: PloS One
https://www.readbyqxmd.com/read/28612180/immunogenicity-of-biologics-in-chronic-inflammatory-diseases-a-systematic-review
#5
REVIEW
Vibeke Strand, Alejandro Balsa, Jamal Al-Saleh, Leonor Barile-Fabris, Takahiko Horiuchi, Tsutomu Takeuchi, Sadiq Lula, Charles Hawes, Blerina Kola, Lisa Marshall
OBJECTIVES: A systematic review was conducted to explore the immunogenicity of biologic agents across inflammatory diseases and its potential impact on efficacy/safety. METHODS: Literature searches were conducted through November 2016 to identify controlled and observational studies of biologics/biosimilars administered for treatment of rheumatoid arthritis (RA), psoriatic arthritis (PsA), juvenile idiopathic arthritis (JIA), ankylosing spondylitis (AS), non-radiographic axial spondyloarthritis (nr-axSpA), psoriasis (Ps), Crohn's disease, and ulcerative colitis...
June 13, 2017: BioDrugs: Clinical Immunotherapeutics, Biopharmaceuticals and Gene Therapy
https://www.readbyqxmd.com/read/28611658/neuroprotective-and-anti-aging-potentials-of-essential-oils-from-aromatic-and-medicinal-plants
#6
REVIEW
Muhammad Ayaz, Abdul Sadiq, Muhammad Junaid, Farhat Ullah, Fazal Subhan, Jawad Ahmed
The use of essential oils (EOs) and their components is known since long in traditional medicine and aromatherapy for the management of various diseases, and is further increased in the recent times. The neuroprotective and anti-aging potentials of EOs and their possible mechanism of actions were evaluated by numerous researchers around the globe. Several clinically important EOs and their components from Nigella sativa, Acorus gramineus, Lavandula angustifolia, Eucalyptus globulus, Mentha piperita, Rosmarinus officinalis, Jasminum sambac, Piper nigrum and so many other plants are reported for neuroprotective effects...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28610885/three-dimensional-printed-bioengineered-tracheal-grafts-preclinical-results-and-potential-for-human-use
#7
Sadiq S Rehmani, Adnan M Al-Ayoubi, Adil Ayub, Michael Barsky, Erik Lewis, Raja Flores, Robert Lebovics, Faiz Y Bhora
BACKGROUND: We aimed to develop a process using three-dimensional (3D) printing to create bioengineered tracheal grafts (BETGs) for reconstruction of anterior tracheal defects in a large-animal model (porcine) that would have translational relevance for potential human use. METHODS: Preoperative computed tomographic scans were used to create virtual 3D models of the animal airways. Anatomically scaled tracheal grafts were subsequently developed using 3D-printed polycaprolactone and extracellular matrix...
June 11, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28594387/3d-printing-based-integrated-water-quality-sensing-system
#8
Muinul Banna, Kaustav Bera, Ryan Sochol, Liwei Lin, Homayoun Najjaran, Rehan Sadiq, Mina Hoorfar
The online and accurate monitoring of drinking water supply networks is critically in demand to rapidly detect the accidental or deliberate contamination of drinking water. At present, miniaturized water quality monitoring sensors developed in the laboratories are usually tested under ambient pressure and steady-state flow conditions; however, in Water Distribution Systems (WDS), both the pressure and the flowrate fluctuate. In this paper, an interface is designed and fabricated using additive manufacturing or 3D printing technology-material extrusion (Trade Name: fused deposition modeling, FDM) and material jetting-to provide a conduit for miniaturized sensors for continuous online water quality monitoring...
June 8, 2017: Sensors
https://www.readbyqxmd.com/read/28584857/evolving-failures-in-the-delivery-of-human-immunodeficiency-virus-care-lessons-from-a-ugandan-meningitis-cohort-2006-2016
#9
Andrew G Flynn, David B Meya, Katherine Huppler Hullsiek, Joshua Rhein, Darlisha A Williams, Abdu Musubire, Bozena M Morawski, Kabanda Taseera, Alisat Sadiq, Liberica Ndyatunga, Mollie Roediger, Radha Rajasingham, Paul R Bohjanen, Conrad Muzoora, David R Boulware
BACKGROUND: Because of investments in human immunodeficiency virus (HIV) care in sub-Saharan Africa, the number of people aware of their status and receiving antiretroviral therapy (ART) has increased; however, HIV/acquired immune deficiency syndrome (AIDS) mortality still remains high. METHODS: We performed retrospective analysis of 3 sequential prospective cohorts of HIV-infected Ugandan adults presenting with AIDS and meningitis from 2006 to 2009, 2010 to 2012, and 2013 to 2016...
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28573729/development-of-protein-dietary-fiber-and-micronutrient-enriched-extruded-corn-snacks
#10
Faiz-Ul-Hassan Shah, Mian Kamran Sharif, Masood Sadiq Butt, Muhammad Shahid
The study was aimed to develop protein, dietary fiber, and micronutrient enriched corn snacks through extrusion processing. Corn snacks supplemented with chickpea, defatted soy flour (20-40/100 g) and guar gum (7/100 g) were prepared through extrusion processing. Micronutrients (iron, zinc, iodine, and vitamins A, C, and folic acid) at recommended daily values were added in all formulations. Extruded corn snacks were analyzed for physical, textural, and sensory attributes. Results showed that piece density (0...
June 2017: Journal of Texture Studies
https://www.readbyqxmd.com/read/28573352/risk-based-framework-for-optimizing-residual-chlorine-in-large-water-distribution-systems
#11
Muhammad Nadeem Sharif, Ashraf Farahat, Husnain Haider, Muhammad A Al-Zahrani, Manuel J Rodriguez, Rehan Sadiq
Managing residual chlorine in large water distribution systems (WDS) to minimize human health risk is a daunting task. In this research, a novel risk-based framework is developed and implemented in a distribution network spanning over 64 km(2) for supplying water to the city of Al-Khobar (Saudi Arabia) through 473-km-long water mains. The framework integrates the planning of linear assets (i.e., pipes) and placement of booster stations to optimize residual chlorine in the WDS. Failure mode and effect analysis are integrated with the fuzzy set theory to perform risk analysis...
July 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28573253/in-vivo-carbon-tetrachloride-induced-hepatoprotective-and-in-vitro-cytotoxic-activities-of-garcinia-hombroniana-seashore-mangosteen
#12
Nargis Jamila, Naeem Khan, Amir Atlas Khan, Imran Khan, Sadiq Noor Khan, Zainal Amiruddin Zakaria, Melati Khairuddean, Hasnah Osman, Kyong Su Kim
BACKGROUND: Garcinia hombroniana, known as "manggis hutan" (jungle mangosteen) in Malaysia, is distributed in tropical Asia, Borneo, Thailand, Andaman, Nicobar Islands, Vietnam and India. In Malaysia, its ripened crimson sour fruit rind is used as a seasoning agent in curries and culinary dishes. Its roots and leaves decoction is used against skin infections and after child birth. This study aimed to evaluate in vivo hepatoprotective and in vitro cytotoxic activities of 20% methanolic ethyl acetate (MEA) G...
2017: African Journal of Traditional, Complementary, and Alternative Medicines: AJTCAM
https://www.readbyqxmd.com/read/28560653/association-of-single-nucleotide-polymorphisms-in-xrcc1-194-and-xpd-751-with-age-related-cataract
#13
Tafheem Khosa, Sana Aslam, Saima Mustafa, Atif Akbar, Rehan Sadiq Shaikh, Furhan Iqbal
PURPOSE: Age-related cataract (ARC) is a multifactorial disease and different risk factors, including genetic and environmental, are responsible for the development of its various types. The aim of this study was to find out a correlation, if any, between ARC and the single nucleotide polymorphisms (SNPs) in DNA repair genes XRCC1 (X-ray repair cross-complementary-1) [Arg194Trp (rs1799782)] and XPD (xerodermapigmentosa complementation group D) [Lys751Gln (rs13,181]. METHOD: The genotype at these two SNPs was analyzed in 260 subjects (125 control and 135 patients) from Southern Punjab population (Pakistan) by polymerase chain reaction and restriction fragment length polymorphism (PCR-RFLP) method...
May 30, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28558679/demonstration-of-biological-activities-of-extracts-from-isodon-rugosus-wall-ex-benth-separation-and-identification-of-bioactive-phytoconstituents-by-gc-ms-analysis-in-the-ethyl-acetate-extract
#14
Anwar Zeb, Farhat Ullah, Muhammad Ayaz, Sajjad Ahmad, Abdul Sadiq
BACKGROUND: Since long, natural sources have been explored for possible managements of various diseases. In this context, the study is designed to evaluate Isodon rugosus Wall. ex Benth for biological potentials including antibacterial, anthelmintic, insecticidal, anti-termites and anti-Pharaoh activities followed by GC-MS analysis of active fraction to identify various bioactive compounds. METHODS: I. rugosus was investigated against eight bacterial strains using well diffusion method and microdilution method with ceftriaxone as positive control...
May 30, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28553075/fabrication-characterization-and-in-vitro-evaluation-of-silibinin-nanoparticles-an-attempt-to-enhance-its-oral-bioavailability
#15
Muhammad Umar Khayam Sahibzada, Abdul Sadiq, Shahzeb Khan, Hani S Faidah, Naseemullah, Muhammad Khurram, Muhammad Usman Amin, Abdul Haseeb
BACKGROUND: Silibinin has gained in importance in the past few decades as a hepatoprotector and is used widely as oral therapy for toxic liver damage, liver cirrhosis, and chronic inflammatory liver diseases, as well as for the treatment of different types of cancers. Unfortunately, it has low aqueous solubility and inadequate dissolution, which results in low oral bioavailability. MATERIALS AND METHODS: In this study, nanoparticles (NPs) of silibinin, which is a hydrophobic drug, were manufactured using two cost-effective methods...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28542549/a-new-weighting-factor-in-combining-belief-function
#16
Deyun Zhou, Qian Pan, Gyan Chhipi-Shrestha, Xiaoyang Li, Kun Zhang, Kasun Hewage, Rehan Sadiq
Dempster-Shafer evidence theory has been widely used in various applications. However, to solve the problem of counter-intuitive outcomes by using classical Dempster-Shafer combination rule is still an open issue while fusing the conflicting evidences. Many approaches based on discounted evidence and weighted average evidence have been investigated and have made significant improvements. Nevertheless, all of these approaches have inherent flaws. In this paper, a new weighting factor is proposed to address this problem...
2017: PloS One
https://www.readbyqxmd.com/read/28540889/patterns-of-glomerulonephritis-with-crescents-experience-at-a-tertiary-medical-center-in-saudi-arabia
#17
Turki Al-Hussain, Shuaa Asiri, Sadiq Amer, Hadeel Al Mana, Mohammed Akhtar
A series of 78 cases of glomerulonephritis (GN), in which renal biopsy revealed changes of GN associated with crescent formation, were reviewed. Renal pathology findings were correlated with clinical features including patient's age, renal function, and serologic findings. In most of the cases (71.8%), the crescents were due to immune complex-mediated GN. This was followed by pauci-immune GN (20.5%) and anti-glomerular basement membrane antibody (GBM) GN (7.7%). The percentage of glomeruli with crescents was the highest in cases of anti-GBM disease (mean of 93...
May 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28535374/discovery-of-stromal-regulatory-networks-that-suppress-ras-sensitized-epithelial-cell-proliferation
#18
Huayang Liu, James A Dowdle, Safiya Khurshid, Nicholas J Sullivan, Nicholas Bertos, Komal Rambani, Markus Mair, Piotr Daniel, Esther Wheeler, Xing Tang, Kyle Toth, Michael Lause, Markus E Harrigan, Karl Eiring, Connor Sullivan, Matthew J Sullivan, Serena W Chang, Siddhant Srivastava, Joseph S Conway, Raleigh Kladney, Joseph McElroy, Sooin Bae, Yuanzhi Lu, Ali Tofigh, Sadiq M I Saleh, Soledad A Fernandez, Jeffrey D Parvin, Vincenzo Coppola, Erin R Macrae, Sarmila Majumder, Charles L Shapiro, Lisa D Yee, Bhuvaneswari Ramaswamy, Michael Hallett, Michael C Ostrowski, Morag Park, Helen M Chamberlin, Gustavo Leone
Mesodermal cells signal to neighboring epithelial cells to modulate their proliferation in both normal and disease states. We adapted a Caenorhabditis elegans organogenesis model to enable a genome-wide mesodermal-specific RNAi screen and discovered 39 factors in mesodermal cells that suppress the proliferation of adjacent Ras pathway-sensitized epithelial cells. These candidates encode components of protein complexes and signaling pathways that converge on the control of chromatin dynamics, cytoplasmic polyadenylation, and translation...
May 22, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28533249/the-myxobacterial-metabolite-soraphen-a-inhibits-hiv-1-by-reducing-virus-production-and-altering-virion-composition
#19
Eric Fleta-Soriano, Katarína Smutná, Javier P Martinez, Cristina Lorca Oró, S Kashif Sadiq, Gilles Mirambeau, Carmen Lopez-Iglesias, Marta Bosch, Albert Pol, Mark Brönstrup, Juana Diez, Andreas Meyerhans
Soraphen A is a myxobacterial metabolite that blocks the acetyl-CoA carboxylase of the host, and was previously identified as a novel HIV inhibitor. Here we report that Soraphen A acts by reducing virus production and altering the gp120 virion content, impacting entry capacity and infectivity. These effects are partially reversed by addition of palmitic acid, suggesting inhibition of HIV Env palmitoylation as one of the mechanisms of antiviral action.
May 22, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28515003/reverse-atrial-electrical-remodeling-induced-by-cardiac-resynchronization-therapy
#20
Bryce Alexander, Fariha Sadiq, Kousha Azimi, Benedict Glover, Pavel Antiperovitch, Wilma M Hopman, Zardasht Jaff, Adrian Baranchuk
PURPOSE: Cardiac resynchronization therapy (CRT) has been shown to improve left atrial function; however the effect on reverse electrical remodeling has been poorly evaluated. We hypothesized that CRT might induce reverse atrial electrical remodeling manifesting in the surface ECG as a shortening in P-wave duration. METHODS: Patients with CRT and more than 92% biventricular pacing at minimum follow-up of 1 year were included in the analysis. Those with prior history of atrial fibrillation (AF) were excluded...
April 28, 2017: Journal of Electrocardiology
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