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https://www.readbyqxmd.com/read/28717253/prostacyclin-reverses-platelet-stress-fibre-formation-causing-platelet-aggregate-instability
#1
M Z Yusuf, Z Raslan, L Atkinson, A Aburima, S G Thomas, K M Naseem, S D J Calaminus
Prostacyclin (PGI2) modulates platelet activation to regulate haemostasis. Evidence has emerged to suggest that thrombi are dynamic structures with distinct areas of differing platelet activation. It was hypothesised that PGI2 could reverse platelet spreading by actin cytoskeletal modulation, leading to reduced capability of platelet aggregates to withstand a high shear environment. Our data demonstrates that post-flow of PGI2 over activated and spread platelets on fibrinogen, identified a significant reduction in platelet surface area under high shear...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28711582/a-novel-wnt-pathway-inhibitor-sm04690-for-the-treatment-of-moderate-to-severe-osteoarthritis-of-the-knee-results-of-a-24-week-randomized-controlled-phase-1-study
#2
Yusuf Yazici, Timothy E McAlindon, Roy Fleischmann, Allan Gibofsky, Nancy E Lane, Alan J Kivitz, Nebojsa Skrepnik, Eddie Armas, Christopher J Swearingen, Anita DiFrancesco, Jeyanesh R S Tambiah, John Hood, Marc C Hochberg
OBJECTIVE: To assess the safety, pharmacokinetics, and exploratory efficacy of SM04690, a novel Wnt pathway inhibitor, as a potential disease modifying treatment for knee OA. DESIGN: Subjects with Kellgren-Lawrence grade 2-3 knee OA were randomized in successive dose-escalation cohorts to receive a knee intra-articular injection with 0.03, 0.07, or 0.23 mg SM04690, or placebo (PBO) (4:1 ratio). Safety, pharmacokinetics, efficacy (WOMAC Total/Function/Pain, Pain VAS, Physician Global Assessment [MDGA], and OMERACT-OARSI Response), OA-related biomarker (P1NP, ß-CTX, and COMP), and radiographic/imaging data were collected at baseline and during 24-week follow-up...
July 12, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28701718/recycling-and-self-healing-of-polybenzoxazines-with-dynamic-sulfide-linkages
#3
Mustafa Arslan, Baris Kiskan, Yusuf Yagci
In this work, a recycling and self-healing strategy for polybenzoxazines through both S-S bond cleavage-reformation reaction and supramolecular attractions is described. Both recyclable and self-healable polybenzoxazines can be prepared from low cost chemicals with a simple procedure in only 30 minutes. For this purpose, inverse vulcanization of poly(propylene oxide)benzoxazine (PPOB) and diallybenzoxazine (B-al) with elemental sulfur was performed at 185 °C. The obtained cross-linked polymer films exhibited thermally driven recycling ability up to 5 cycles...
July 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28694456/single-cell-transcriptomics-of-east-asian-pancreatic-islets-cells
#4
Rajkumar Dorajoo, Yusuf Ali, Vanessa S Y Tay, Jonathan Kang, Sudhagar Samydurai, Jianjun Liu, Bernhard O Boehm
Single-cell RNA-seq (scRNA-seq) of pancreatic islets have reported on α- and β-cell gene expression in mice and subjects of predominantly European ancestry. We aimed to assess these findings in East-Asian islet-cells. 448 islet-cells were captured from three East-Asian non-diabetic subjects for scRNA-seq. Hierarchical clustering using pancreatic cell lineage genes was used to assign cells into cell-types. Differentially expressed transcripts between α- and β-cells were detected using ANOVA and in silico replications of mouse and human islet cell genes were performed...
July 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28680341/effects-of-sleep-deprivation-on-cognitive-and-physical-performance-in-university-students
#5
Yusuf Patrick, Alice Lee, Oishik Raha, Kavya Pillai, Shubham Gupta, Sonika Sethi, Felicite Mukeshimana, Lothaire Gerard, Mohammad U Moghal, Sohag N Saleh, Susan F Smith, Mary J Morrell, James Moss
Sleep deprivation is common among university students, and has been associated with poor academic performance and physical dysfunction. However, current literature has a narrow focus in regard to domains tested, this study aimed to investigate the effects of a night of sleep deprivation on cognitive and physical performance in students. A randomized controlled crossover study was carried out with 64 participants [58% male (n = 37); 22 ± 4 years old (mean ± SD)]. Participants were randomized into two conditions: normal sleep or one night sleep deprivation...
2017: Sleep and Biological Rhythms
https://www.readbyqxmd.com/read/28680313/affective-temperaments-in-parents-of-children-with-attention-deficit-hyperactivity-disorder
#6
Esra Yazici, Esra Yürümez, Ahmet Bülent Yazici, Yusuf Yasin Gümüş, Atila Erol
INTRODUCTION: The objective of this study was to investigate affective temperaments of parents of children with ADHD and the relationship between ADHD and affective temperaments. METHODS: The children diagnosed with ADHD were evaluated with a structured interview and the Turgay DSM-IV-Based Child and Adolescent Disruptive Behavioral Disorders Screening and Rating Scale (T-DSM-IV-S) was filled by parents. Then parents were evaluated by a structured clinical interview for DSM-IV (SCID-I), and those with no diagnosis of psychiatric disorder (in the past and at the time of the study) were included to the study...
June 2017: Noro Psikiyatri Arsivi
https://www.readbyqxmd.com/read/28641393/a-technical-review-of-subvalvular-techniques-for-repair-of-ischaemic-mitral-regurgitation-and-their-associated-echocardiographic-and-survival-outcomes
#7
Leonidas V Athanasopoulos, Roberto P Casula, Prakash P Punjabi, Yusuf S Abdullahi, Thanos Athanasiou
Subvalvular techniques are gaining ground as adjunct procedures for addressing ischaemic mitral regurgitation. The aim of this study was to describe the different techniques and assess their results. A systematic review of the literature was performed. The end points of interest were recurrence of mitral regurgitation, cardiac events and early and late echocardiographic measurements. After initial screening, 450 articles were identified, of which 24 provided the best available evidence on the topic. The different subvalvular techniques had similar mortality rates when compared with the standard restrictive annuloplasty...
June 21, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28633566/microsphere-based-scaffolds-in-regenerative-engineering
#8
Vineet Gupta, Yusuf Khan, Cory J Berkland, Cato T Laurencin, Michael S Detamore
Microspheres have long been used in drug delivery applications because of their controlled release capabilities. They have increasingly served as the fundamental building block for fabricating scaffolds for regenerative engineering because of their ability to provide a porous network, offer high-resolution control over spatial organization, and deliver growth factors/drugs and/or nanophase materials. Because they provide physicochemical gradients via spatiotemporal release of bioactive factors and nanophase ceramics, microspheres are a desirable tool for engineering complex tissues and biological interfaces...
June 21, 2017: Annual Review of Biomedical Engineering
https://www.readbyqxmd.com/read/28624317/modulatory-effects-of-ampicillin-sulbactam-on-glial-glutamate-transporters-and-metabotropic-glutamate-receptor-1-as-well-as-reinstatement-to-cocaine-seeking-behavior
#9
Alaa M Hammad, Fawaz Alasmari, Yusuf S Althobaiti, Youssef Sari
Glutamatergic system has an important role in cocaine-seeking behavior. Studies have reported that chronic exposure to cocaine induces downregulation of glutamate transporter-1 (GLT-1) and cystine/glutamate exchanger (xCT) in the central reward brain regions. Ceftriaxone, a β-lactam antibiotic, restored GLT-1 expression and consequently reduced cue-induced reinstatement of cocaine-seeking behavior. In this study, we investigated the reinstatement to cocaine (20mg/kg, i.p.) seeking behavior using a conditioned place preference (CPP) paradigm in male alcohol-preferring (P) rats...
June 15, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28619407/should-they-also-have-babies-community-attitudes-toward-sexual-and-reproductive-rights-of-people-living-with-hiv-aids-in-nigeria
#10
Zubairu Iliyasu, Hadiza S Galadanci, Yusuf A Ibrahim, Musa Babashani, Mohammed S Mijinyawa, Melynda Simmons, Muktar H Aliyu
BACKGROUND: People living with HIV have the right to healthy, satisfying sex lives and to appropriate services to ensure their sexual and reproductive health, including having healthy children. The reproductive rights of people living with HIV/AIDS are, however, often met with skepticism and discrimination, despite recent advances in HIV treatment. OBJECTIVE: To assess the attitudes of community members in Kano, Nigeria, toward the right of persons living with HIV/AIDS to have healthy sexual relationships and bear children...
March 2017: Annals of Global Health
https://www.readbyqxmd.com/read/28572960/production-of-organic-flavor-compounds-by-dominant-lactic-acid-bacteria-and-yeasts-from-obushera-a-traditional-sorghum-malt-fermented-beverage
#11
Ivan M Mukisa, Yusuf B Byaruhanga, Charles M B K Muyanja, Thor Langsrud, Judith A Narvhus
Single and mixed starter cultures of lactic acid bacteria (LAB): Weissella confusa MNC20, Lactobacillus plantarum MNC21, Lactococcus lactis MNC24 and Lactobacillus fermentum MNC34 and yeasts: Issatchenkia orientalis MNC20Y and Saccharomyces cerevisiae MNC21Y were used to produce Obushera, a fermented sorghum beverage. Microbial counts, pH, sugars, organic acids, and volatile compounds in starter culture and spontaneous fermentations were monitored during 48 hrs. Maximum counts of LAB (8.4-9.4 log cfu g(-1)) and yeasts (7...
May 2017: Food Science & Nutrition
https://www.readbyqxmd.com/read/28535819/does-the-placebo-effect-modulate-drug-bioavailability-randomized-cross-over-studies-of-three-drugs
#12
Muhammad M Hammami, Ahmed Yusuf, Faduma S Shire, Rajaa Hussein, Reem Al-Swayeh
BACKGROUND: Medication effect is the sum of its drug, placebo, and drug*placebo interaction effects. It is conceivable that the interaction effect involves modulating drug bioavailability; it was previously observed that being aware of caffeine ingestion may prolong caffeine plasma half-life. This study was set to evaluate such concept using different drugs. METHODS: Balanced single-dose, two-period, two-group, cross-over design was used to compare the pharmacokinetics of oral cephalexin, ibuprofen, and paracetamol, each described by its name (overt) or as placebo (covert)...
May 23, 2017: Journal of Negative Results in Biomedicine
https://www.readbyqxmd.com/read/28512596/in-vitro-screening-for-protein-tyrosine-phosphatase-1b-and-dipeptidyl-peptidase-iv-inhibitors-from-selected-nigerian-medicinal-plants
#13
Yusuf Saidu, Suleiman Alhaji Muhammad, Abdullahi Yahaya Abbas, Andrew Onu, Ibrahim Mohammed Tsado, Luba Muhammad
BACKGROUND/AIM: Protein tyrosine phosphatase 1B (PTP 1B) and dipeptidyl peptidase IV (DPP IV) have been identified as one of the drug targets for the treatment of Type-2 diabetes. This study was designed to screen for PTP 1B and DPP-IV inhibitors from some Nigerian medicinal plants. MATERIALS AND METHODS: PTP 1B and DPP-IV drug discovery kits from Enzo Life Sciences were used to investigate in vitro inhibitory effect of crude methanolic extract of 10 plants; Mangifera indica, Moringa oleifera, Acacia nilotica, Arachis hypogaea, Senna nigricans, Azadirachta indica, Calotropis procera, Leptadenia hastata, Ziziphus mauritiana, and Solanum incanum...
April 2017: Journal of Intercultural Ethnopharmacology
https://www.readbyqxmd.com/read/28508897/whole-genome-analysis-of-a-schistosomiasis-transmitting-freshwater-snail
#14
Coen M Adema, LaDeana W Hillier, Catherine S Jones, Eric S Loker, Matty Knight, Patrick Minx, Guilherme Oliveira, Nithya Raghavan, Andrew Shedlock, Laurence Rodrigues do Amaral, Halime D Arican-Goktas, Juliana G Assis, Elio Hideo Baba, Olga L Baron, Christopher J Bayne, Utibe Bickham-Wright, Kyle K Biggar, Michael Blouin, Bryony C Bonning, Chris Botka, Joanna M Bridger, Katherine M Buckley, Sarah K Buddenborg, Roberta Lima Caldeira, Julia Carleton, Omar S Carvalho, Maria G Castillo, Iain W Chalmers, Mikkel Christensens, Sandra Clifton, Celine Cosseau, Christine Coustau, Richard M Cripps, Yesid Cuesta-Astroz, Scott F Cummins, Leon di Stephano, Nathalie Dinguirard, David Duval, Scott Emrich, Cédric Feschotte, Rene Feyereisen, Peter FitzGerald, Catrina Fronick, Lucinda Fulton, Richard Galinier, Sandra G Gava, Michael Geusz, Kathrin K Geyer, Gloria I Giraldo-Calderón, Matheus de Souza Gomes, Michelle A Gordy, Benjamin Gourbal, Christoph Grunau, Patrick C Hanington, Karl F Hoffmann, Daniel Hughes, Judith Humphries, Daniel J Jackson, Liana K Jannotti-Passos, Wander de Jesus Jeremias, Susan Jobling, Bishoy Kamel, Aurélie Kapusta, Satwant Kaur, Joris M Koene, Andrea B Kohn, Dan Lawson, Scott P Lawton, Di Liang, Yanin Limpanont, Sijun Liu, Anne E Lockyer, TyAnna L Lovato, Fernanda Ludolf, Vince Magrini, Donald P McManus, Monica Medina, Milind Misra, Guillaume Mitta, Gerald M Mkoji, Michael J Montague, Cesar Montelongo, Leonid L Moroz, Monica C Munoz-Torres, Umar Niazi, Leslie R Noble, Francislon S Oliveira, Fabiano S Pais, Anthony T Papenfuss, Rob Peace, Janeth J Pena, Emmanuel A Pila, Titouan Quelais, Brian J Raney, Jonathan P Rast, David Rollinson, Izinara C Rosse, Bronwyn Rotgans, Edwin J Routledge, Kathryn M Ryan, Larissa L S Scholte, Kenneth B Storey, Martin Swain, Jacob A Tennessen, Chad Tomlinson, Damian L Trujillo, Emanuela V Volpi, Anthony J Walker, Tianfang Wang, Ittiprasert Wannaporn, Wesley C Warren, Xiao-Jun Wu, Timothy P Yoshino, Mohammed Yusuf, Si-Ming Zhang, Min Zhao, Richard K Wilson
Biomphalaria snails are instrumental in transmission of the human blood fluke Schistosoma mansoni. With the World Health Organization's goal to eliminate schistosomiasis as a global health problem by 2025, there is now renewed emphasis on snail control. Here, we characterize the genome of Biomphalaria glabrata, a lophotrochozoan protostome, and provide timely and important information on snail biology. We describe aspects of phero-perception, stress responses, immune function and regulation of gene expression that support the persistence of B...
May 16, 2017: Nature Communications
https://www.readbyqxmd.com/read/28501655/changes-of-auditory-event-related-potentials-in-ovariectomized-rats-injected-with-d-galactose-protective-role-of-rosmarinic-acid
#15
Deniz Kantar-Gok, Enis Hidisoglu, Hakan Er, Alev Duygu Acun, Yusuf Olgar, Piraye Yargıcoglu
Rosmarinic acid (RA), which has multiple bioactive properties, might be a useful agent for protecting central nervous system against age related alterations. In this context, the purpose of the present study was to investigate possible protective effects of RA on mismatch negativity (MMN) component of auditory event-related potentials (AERPs) as an indicator of auditory discrimination and echoic memory in the ovariectomized (OVX) rats injected with d-galactose combined with neurochemical and histological analyses...
May 10, 2017: Neurotoxicology
https://www.readbyqxmd.com/read/28497178/optimization-of-production-of-c-phycocyanin-and-extracellular-polymeric-substances-by-arthrospira-sp
#16
Monchai Dejsungkranont, Yusuf Chisti, Sarote Sirisansaneeyakul
The key factors influencing the production of C-phycocyanin (C-PC) and extracellular polymeric substances (EPS) by photoautotrophic culture of Arthrospira sp. were optimized using Taguchi method. Six factors were varied at either three or two levels as follows: light intensity at three levels; three initial culture pHs; two species of Arthrospira; three concentrations of Zarrouk's medium; three rates of aeration of the culture with air mixed with 2% v/v carbon dioxide; and two incubation temperatures. All cultures ran for 14 days...
August 2017: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/28462996/enabling-the-electrochemical-activity-in-sodium-iron-metaphosphate-nafe-po3-3-sodium-battery-insertion-material-structural-and-electrochemical-insights
#17
Ritambhara Gond, Sher Singh Meena, S M Yusuf, Vivekanand Shukla, Naresh K Jena, Rajeev Ahuja, Shigeto Okada, Prabeer Barpanda
Sodium-ion batteries are widely pursued as an economic alternative to lithium-ion battery technology, where Fe- and Mn-based compounds are particularly attractive owing to their elemental abundance. Pursuing phosphate-based polyanionic chemistry, recently solid-state prepared NaFe(PO3)3 metaphosphate was unveiled as a novel potential sodium insertion material, although it was found to be electrochemically inactive. In the current work, employing energy-savvy solution combustion synthesis, NaFe(2+)(PO3)3 was produced from low-cost Fe(3+) precursors...
May 2, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28447589/neuroretinal-evaluation-using-optical-coherence-tomography-in-patients-affected-by-pituitary-tumors
#18
Yasar Altun, Ayse Sevgi Karadag, Seyho Cem Yucetas, Sadullah Saglam, A Z A Tak, Ilhan Cag, Yusuf Ehi
AIM: To investigate the thickness of the retinal nerve fiber layer (RNFL), the ganglion cell layer (GCL), inner plexiform layer (IPL), and choroid thickness (CT) in patients with pituitary tumours, microadenoma and macroadenoma, using spectral optical coherence tomography (OCT). METHODS: Thirty six patients who had micro and macroadenoma, and 34 healthy participants (control group) were included in the study. Spectral OCT was used to measure the RNFL, GCL, IPL, and CT values for all patients...
2017: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/28442364/effects-of-repeated-cocaine-exposure-and-withdrawal-on-voluntary-ethanol-drinking-and-the-expression-of-glial-glutamate-transporters-in-mesocorticolimbic-system-of-p-rats
#19
Alaa M Hammad, Yusuf S Althobaiti, Sujan C Das, Youssef Sari
Glutamatergic neurotransmission within the brain's reward circuits plays a major role in the reinforcing properties of both ethanol and cocaine. Glutamate homeostasis is regulated by several glutamate transporters, including glutamate transporter type 1 (GLT-1), cystine/glutamate transporter (xCT), and glutamate aspartate transporter (GLAST). Cocaine exposure has been shown to induce a dysregulation in glutamate homeostasis and a decrease in the expression of GLT-1 and xCT in the nucleus accumbens (NAc). In this study, alcohol preferring (P) rats were exposed to free-choice of ethanol (15% and 30%) and/or water for five weeks...
April 22, 2017: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/28426886/risk-of-stroke-in-chronic-heart-failure-patients-with-preserved-ejection-fraction-but-without-atrial-fibrillation-analysis-of-the-charm-preserved-and-i-preserve-trials
#20
Azmil H Abdul-Rahim, Ana-Cristina Perez, Rachael L MacIsaac, Pardeep S Jhund, Brian L Claggett, Peter E Carson, Michel Komajda, Robert S McKelvie, Michael R Zile, Karl Swedberg, Salim Yusuf, Marc A Pfeffer, Scott D Solomon, Gregory Y H Lip, Kennedy R Lees, John J V McMurray
Aims: The incidence and predictors of stroke in patients with heart failure and preserved ejection fraction (HF-PEF), but without atrial fibrillation (AF), are unknown. We described the incidence of stroke in HF-PEF patients with and without AF and predictors of stroke in those without AF. Methods and results: We pooled data from the CHARM-Preserved and I-Preserve trials. Using Cox regression, we derived a model for stroke in patients without AF in this cohort and compared its performance with a published model in heart failure patients with reduced ejection fraction (HF-REF)-predictive variables: age, body mass index, New York Heart Association class, history of stroke, and insulin-treated diabetes...
March 7, 2017: European Heart Journal
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