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https://www.readbyqxmd.com/read/28222573/soccer-related-performance-in-eumenorrheic-tunisian-high-level-soccer-players-effects-of-menstrual-cycle-phase-and-moment-of-day
#1
Mohamed Tounsi, Hamdi Jaafar, Asma Aloui, Nizar Souissi
BACKGROUND: This study aimed to examine the combined effects of menstrual cycle phase and moment of day on female soccer players' performances in the five-jump test (5JT), the repeated shuttle- sprint ability test (RSSA), and the Yo-Yo intermittent recovery test level 1 (YYIRT1). METHODS: Eleven eumenorrheic Tunisian high-level soccer players volunteered to participate. Each subject individually participated in three testing periods: one in the early follicular phase (menses), one in the late follicular phase, and another in the luteal phase...
February 21, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28222496/the-integrins-involved-in-soybean-agglutinin-induced-cell-cycle-alterations-in-ipec-j2
#2
Li Pan, Yuan Zhao, Zhijie Yuan, Mohammed Hamdy Farouk, Shiyao Zhang, Nan Bao, Guixin Qin
Soybean agglutinin (SBA) is an anti-nutritional factor of soybean, affecting cell proliferation and inducing cytotoxicity. Integrins are transmembrane receptors, mediating a variety of  cell biological processes. This research aims to study the effects of SBA on cell proliferation and cell cycle progression of the intestinal epithelial cell line from piglets (IPEC-J2), to identify the integrin subunits especially expressed in IPEC-J2s, and to analyze the functions of these integrins on IPEC-J2 cell cycle progression and SBA-induced IPEC-J2 cell cycle alteration...
February 21, 2017: Molecules and Cells
https://www.readbyqxmd.com/read/28222420/camalexin-induced-cell-membrane-scrambling-and-cell-shrinkage-in-human-erythrocytes
#3
Mustafa Almasry, Mohamed Jemaà, Morena Mischitelli, Florian Lang, Caterina Faggio
BACKGROUND/AIMS: The thaliana phytoalexin Camalexin has been proposed for the treatment of malignancy. Camalexin counteracts tumor growth in part by stimulation of suicidal death or apoptosis of tumor cells. Similar to apoptosis of nucleated cells, erythrocytes may enter suicidal death or eryptosis, which is characterized by cell shrinkage and cell membrane scrambling with phosphatidylserine translocation to the erythrocyte surface. Cellular mechanisms contributing to the complex machinery executing eryptosis include increase of cytosolic Ca2+ activity ([Ca2+]i), oxidative stress, ceramide, protein kinase C and caspases...
February 13, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28222401/combination-of-sitagliptin-and-silymarin-ameliorates-liver-fibrosis-induced-by-carbon-tetrachloride-in-rats
#4
Samia Salem Sokar, Magda El-Sayed El-Sayad, Mai El-Sayed Ghoneim, Abdelhadi Mohamed Shebl
Liver fibrosis is a common pathological condition that occurs in most conditions associated with chronic liver injury. Silymarin is a herbal product widely used for its hepatoprotective effect. Sitagliptin, a dipeptidyl peptidase-4 inhibitor (DPP4-I), is clinically used as an oral antidiabetic agent. This study was designed to investigate the effects of Sitagliptin, Silymarin, and their combination on established liver fibrosis in carbon tetrachloride (CCl4) rat model. Male albino rats received intraperitoneal injections of CCl4 three times a week for 7 weeks, as well as daily oral treatments of Sitagliptin (100mg/kg) or Silymarin (100mg/kg) or their combination during the 7 weeks of intoxication...
February 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28222389/correlation-between-ploidy-status-using-flow-cytometry-and-nucleolar-organizer-regions-in-benign-and-malignant-epithelial-odontogenic-tumors
#5
Sarah Ahmed Mohamed Mahmoud, Dalia Hussein El-Rouby, Safa Fathy Abd El-Ghani, Omnia Mohamed Badawy
OBJECTIVE: Differentiation between the aggressive benign odontogenic tumors and their malignant counterparts is controversial and difficult. While flow cytometry (FCM) allowed DNA analysis in neoplasia, argyrophilic organizer regions (AgNORs) number and/or size in a nucleus are correlated with the ribosomal gene activity and therefore with cellular proliferation. The aim of this research was to study the diagnostic accuracy of FCM and AgNORs staining in differentiating between benign and malignant epithelial odontogenic tumors and to correlate between these two interventions...
February 14, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28222372/comparison-of-classical-fenton-nitrilotriacetic-acid-nta-fenton-uv-fenton-uv-photolysis-of-fe-nta-uv-nta-fenton-and-uv-h2o2-for-the-degradation-of-cyclohexanoic-acid
#6
Ying Zhang, Nikolaus Klamerth, Pamela Chelme-Ayala, Mohamed Gamal El-Din
The treatment of a naphthenic acid model compound, cyclohexanoic acid, with classical Fenton, UV-H2O2, UV-Fenton, nitrilotriacetic acid (NTA)-Fenton, UV-NTA-Fenton, and UV photolysis of Fe-NTA processes at pHs 3 and 8 was investigated. At 1.47 mM H2O2, 0.089 mM Fe, and 0.18 mM NTA, the UV-NTA-Fenton process at pH 3 exhibited the highest H2O2 decomposition (100% in 25 min), CHA removal (100% in 12 min) with a rate constant of 0.27 ± 0.025 min(-1), and NTA degradation (100% in 6 min). Due to the formation of H2O2-Fe(III)NTA adduct, the total Fe concentration in the UV-NTA-Fenton system (0...
February 12, 2017: Chemosphere
https://www.readbyqxmd.com/read/28222259/band-alignment-at-gan-single-layer-wse2-interface
#7
Malleswararao Tangi, Pawan Mishra, Chien-Chih Tseng, Tien Khee Ng, Mohamed Nejib Hedhili, Dalaver H Anjum, Mohd Sharizal Alias, Nini Wei, Lain-Jong Li, Boon S Ooi
We study the band discontinuity at the GaN/single-layer (SL) WSe2 heterointerface. The GaN thin layer is epitaxially grown by molecular beam epitaxy on chemically vapor deposited SL-WSe2/c-sapphire. We confirm that the WSe2 was formed as an SL from structural and optical analyses using atomic force microscopy, scanning transmission electron microscopy, micro-Raman, absorbance, and micro-photoluminescence spectra. The determination of band offset parameters at the GaN/SL-WSe2 heterojunction is obtained by high-resolution x-ray photoelectron spectroscopy, electron affinities and the electronic bandgap values of SL-WSe2 and GaN...
February 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28222213/rab7a-regulates-tau-secretion
#8
Lilia Rodriguez, Nguyen-Vi Mohamed, Alexandre Desjardins, Roger Lippé, Edward Fon, Nicole Leclerc
The axonal microtubule-associated protein TAU, involved in Alzheimer's disease (AD), can be found in the extracellular space where it could be taken up by neurons, an event that is believed to contribute to the propagation of tau pathology in the brain. Since the small GTPase Rab7A is involved in the trafficking of endosomes, autophagosomes and lysosomes, and RAB7A gene expression and protein levels are upregulated in AD patients, we tested the hypothesis that Rab7A was involved in Tau secretion. We previously reported that both primary cortical neurons and HeLa cells overexpressing human TAU can release Tau...
February 21, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28221389/optical-electrical-and-magnetic-properties-of-lanthanum-strontium-manganite-la1-xsrxmno3-synthesized-through-the-citrate-combustion-method
#9
Ali Omar Turky, Mohamed Mohamed Rashad, Ali Mostafa Hassan, Elsayed M Elnaggar, Mikhael Bechelany
Generally, strontium-doped lanthanum manganites (LSM) are materials connected ordinarily as cathodes in the solid oxide fuel cell (SOFC). In this study, the structural, optical, electrical and magnetic properties of La1-xSrxMnO3 (x = 0.2, 0.5, 0.8) synthesized using an organic acid precursor strategy were investigated, based on using citric acid as a fuel. Evidently, the results disclosed that a pure single monoclinic LSM phase was obtained from the thermally treated precursors annealed at 1000 °C with an annealing time of 2 h...
February 21, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28221358/ionic-solutions-of-two-dimensional-materials
#10
Patrick L Cullen, Kathleen M Cox, Mohammed K Bin Subhan, Loren Picco, Oliver D Payton, David J Buckley, Thomas S Miller, Stephen A Hodge, Neal T Skipper, Vasiliki Tileli, Christopher A Howard
Strategies for forming liquid dispersions of nanomaterials typically focus on retarding reaggregation, for example via surface modification, as opposed to promoting the thermodynamically driven dissolution common for molecule-sized species. Here we demonstrate the true dissolution of a wide range of important 2D nanomaterials by forming layered material salts that spontaneously dissolve in polar solvents yielding ionic solutions. The benign dissolution advantageously maintains the morphology of the starting material, is stable against reaggregation and can achieve solutions containing exclusively individualized monolayers...
March 2017: Nature Chemistry
https://www.readbyqxmd.com/read/28221165/response-to-letter-comment-on-insurance-status-not-race-is-associated-with-use-of-minimally-invasive-surgical-approach-for-rectal-cancer
#11
Megan C Turner, Mohamed Abdelgadir Adam, Zhifei Sun, Jina Kim, Brian Ezekian, Babatunde A Yerokun, Christopher R Mantyh, John Migaly
No abstract text is available yet for this article.
February 1, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28220697/near-infrared-activated-upconversion-nanoprobes-for-sensitive-endogenous-zn2-detection-and-selective-on-demand-photodynamic-therapy
#12
Ping Hu, Rui Wang, Lei Zhou, Lei Chen, Qingsheng Wu, Ming-Yong Han, Ahmed Mohamed El-Toni, Dongyuan Zhao, Fan Zhang
As a light-activated non-invasive cancer treatment paradigm, photodynamic therapy (PDT) has been attracting extensive attentions because of its high treatment efficacy and low side effects. Especially, spatiotemporal control of singlet oxygen (1O2) release is highly desirable for realizing on-demand PDT, which, however, still remains a huge challenge. To address this issue, a novel switchable near infrared (NIR)-responsive upconversion nanoprobe has been firstly designed and successfully applied for controlled PDT that can be optically activated by tumor-associated disruption of labile Zn2+ (denoted as Zn2+ in the following words) homeostasis stimuli...
February 21, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28220578/renal-damage-following-alloxan-induced-diabetes-is-associated-with-generation-of-reactive-oxygen-species-alterations-of-p53-tgf-%C3%AE-1-and-extracellular-matrix-metalloproteinases-in-rats
#13
Mohamed A Abdel Aziz, Dalia M Badary, Mahmoud Rezk Abdelwahed Hussein
: Renal damage is a common problem in diabetes. Alloxan , a potent hyperglycemic and diabetogenic molecule, can induce diabetes through oxidative stress-related mechanisms. Here, we hypothesize that "Alloxan-induced renal damage is associated with alterations of p53, TGF-β1 and extracellular matrix metalloproteinases". To test our hypothesis, we established an animal model (male abino rats) and induced diabetes by intraperitoneal injection of Alloxan monohydrate. Rats with fasting blood glucose level ≥ 200 mg/dl were considered diabetic and were sacrificed after 14, 28, and 42 day intervals...
February 21, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28220480/quality-and-stability-of-extemporaneous-pyridoxal-phosphate-preparations-used-in-the-treatment-of-paediatric-epilepsy
#14
Abeer H A Mohamed-Ahmed, Matthew P Wilson, Maedelyn Albuera, Ting Chen, Philippa B Mills, Emma J Footitt, Peter T Clayton, Catherine Tuleu
OBJECTIVES: To assess the pyridoxal 5'-phosphate (PLP) content and stability of extemporaneous PLP liquids prepared from dietary supplements used for the treatment of vitamin B6 -dependent epilepsy. METHODS: Pyridoxal 5'-phosphate liquids were prepared in accordance with the guidelines given to patients from marketed 50 mg PLP dietary capsules and tablets. The PLP content and its stability were evaluated under conditions resembling the clinical setting using reverse phase HPLC and mass spectrometry...
February 21, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/28220440/quantum-probability-ranking-principle-for-ligand-based-virtual-screening
#15
Mohammed Mumtaz Al-Dabbagh, Naomie Salim, Mubarak Himmat, Ali Ahmed, Faisal Saeed
Chemical libraries contain thousands of compounds that need screening, which increases the need for computational methods that can rank or prioritize compounds. The tools of virtual screening are widely exploited to enhance the cost effectiveness of lead drug discovery programs by ranking chemical compounds databases in decreasing probability of biological activity based upon probability ranking principle (PRP). In this paper, we developed a novel ranking approach for molecular compounds inspired by quantum mechanics, called quantum probability ranking principle (QPRP)...
February 20, 2017: Journal of Computer-aided Molecular Design
https://www.readbyqxmd.com/read/28220136/novel-sources-of-witchweed-striga-resistance-from-wild-sorghum-accessions
#16
Dorothy A Mbuvi, Clet W Masiga, Eric Kuria, Joel Masanga, Mark Wamalwa, Abdallah Mohamed, Damaris A Odeny, Nada Hamza, Michael P Timko, Steven Runo
Sorghum is a major food staple in sub-Saharan Africa (SSA), but its production is constrained by the parasitic plant Striga that attaches to the roots of many cereals crops and causes severe stunting and loss of yield. Away from cultivated farmland, wild sorghum accessions grow as weedy plants and have shown remarkable immunity to Striga. We sought to determine the extent of the resistance to Striga in wild sorghum plants. Our screening strategy involved controlled laboratory assays of rhizotrons, where we artificially infected sorghum with Striga, as well as field experiments at three sites, where we grew sorghum with a natural Striga infestation...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28219928/mitochondria-control-store-operated-ca-2-entry-through-na-and-redox-signals
#17
Tsipi Ben-Kasus Nissim, Xuexin Zhang, Assaf Elazar, Soumitra Roy, Judith A Stolwijk, Yandong Zhou, Rajender K Motiani, Maxime Gueguinou, Nadine Hempel, Michal Hershfinkel, Donald L Gill, Mohamed Trebak, Israel Sekler
Mitochondria exert important control over plasma membrane (PM) Orai1 channels mediating store-operated Ca(2+) entry (SOCE). Although the sensing of endoplasmic reticulum (ER) Ca(2+) stores by STIM proteins and coupling to Orai1 channels is well understood, how mitochondria communicate with Orai1 channels to regulate SOCE activation remains elusive. Here, we reveal that SOCE is accompanied by a rise in cytosolic Na(+) that is critical in activating the mitochondrial Na(+)/Ca(2+) exchanger (NCLX) causing enhanced mitochondrial Na(+) uptake and Ca(2+) efflux...
February 20, 2017: EMBO Journal
https://www.readbyqxmd.com/read/28219684/development-of-magnetic-nanoparticle-based-calorimetric-assay-for-the-detection-of-bovine-mastitis-in-cow-milk
#18
Raja Chinnappan, Sana Al Attas, Gerrit Koop, Tine van Werven, Wendy E Kaman, Floris J Bikker, Mohammed Zourob
Mastitis in dairy cattle is an inflammatory reaction of the udder tissue. Mastitis increases plasmin levels, leading to an increased proteolysis of milk proteins such as casein, resulting in a significant decrease in milk quality and related dairy products. Due to its key-role in mastitis, we used plasmin proteolytic activity as a biomarker for the detection of mastitis in bovine mastitic milk. Inspired by earlier studies on protease activity using mastitic milk samples, we developed a simple colorimetric assay to distinguish mastitic milk from milk derived from healthy animals...
February 17, 2017: Analytical Biochemistry
https://www.readbyqxmd.com/read/28219523/combinatorial-effect-of-mutagenesis-and-medium-component-optimization-on-bacillus-amyloliquefaciens-antifungal-activity-and-efficacy-in-eradicating-botrytis-cinerea
#19
Fatma Masmoudi, Saoussen Ben Khedher, Amel Kamoun, Nabil Zouari, Slim Tounsi, Mohamed Trigui
This work is directed towards Bacillus amyloliquefaciens strain BLB371 metabolite production for biocontrol of fungal phytopathogens. In order to maximise antifungal metabolite production by this strain, two approaches were combined: random mutagenesis and medium component optimization. After three rounds of mutagenesis, a hyper active mutant, named M3-7, was obtained. It produces 7 fold more antifungal metabolites (1800AU/mL) than the wild strain in MC medium. A hybrid design was applied to optimise a new medium to enhance antifungal metabolite production by M3-7...
April 2017: Microbiological Research
https://www.readbyqxmd.com/read/28219519/editorial-for-the-special-issue-entitled-extraction-and-sample-preparation-techniques-in-bioanalysis
#20
EDITORIAL
Mohamed Abdel-Rehim, Milton L Lee, Barbara Bojko
No abstract text is available yet for this article.
February 1, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
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