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https://www.readbyqxmd.com/read/28440645/structural-electronic-and-magnetic-properties-of-iron-disulfide-fens2-0-%C3%A2-n-1-6-clusters
#1
Slimane Tazibt, Aziz Chikhaoui, Said Bouarab, Andres Vega
The structural, electronic and magnetic properties of neutral and charged FenS2(0/±), n=1-6 clusters have been calculated in the framework of the density functional theory in the generalized gradient approximation for the exchange and correlation. The calculated adiabatic electron affinity and the vertical detachment energy are found to be in good agreement with the available experimental data. The impact of disulfide doping of the small iron clusters on the atomic structure, stability, magnetic moment and reactivity is determined through the analysis of the binding energy per atom, electronic charge transfer, spin-polarized electronic density of states and global reactivity indicators like the electronegativity and chemical hardness...
April 25, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28440315/tet2-loss-leads-to-hypermutagenicity-in-haematopoietic-stem-progenitor-cells
#2
Feng Pan, Thomas S Wingo, Zhigang Zhao, Rui Gao, Hideki Makishima, Guangbo Qu, Li Lin, Miao Yu, Janice R Ortega, Jiapeng Wang, Aziz Nazha, Li Chen, Bing Yao, Can Liu, Shi Chen, Ophelia Weeks, Hongyu Ni, Brittany Lynn Phillips, Suming Huang, Jianlong Wang, Chuan He, Guo-Min Li, Tomas Radivoyevitch, Iannis Aifantis, Jaroslaw P Maciejewski, Feng-Chun Yang, Peng Jin, Mingjiang Xu
TET2 is a dioxygenase that catalyses multiple steps of 5-methylcytosine oxidation. Although TET2 mutations frequently occur in various types of haematological malignancies, the mechanism by which they increase risk for these cancers remains poorly understood. Here we show that Tet2(-/-) mice develop spontaneous myeloid, T- and B-cell malignancies after long latencies. Exome sequencing of Tet2(-/-) tumours reveals accumulation of numerous mutations, including Apc, Nf1, Flt3, Cbl, Notch1 and Mll2, which are recurrently deleted/mutated in human haematological malignancies...
April 25, 2017: Nature Communications
https://www.readbyqxmd.com/read/28439032/inactivation-of-transcriptional-regulators-during-within-household-evolution-of-escherichia-coli
#3
Dagmara I Kisiela, Matthew Radey, Sandip Paul, Stephen Porter, Kseniya Polukhina, Veronika Tchesnokova, Sofiya Shevchenko, Diana Chan, Maliha Aziz, Timothy J Johnson, Lance B Price, James R Johnson, Evgeni V Sokurenko
We analyzed the within-household evolution of two household-associated Escherichia coli strains from pandemic clonal group ST131-H30, using isolates recovered from five individuals within two families, each of which had a distinct strain. Family 1's strain was represented by a urine isolate from the index patient (older sister) with recurrent cystitis, and a blood isolate from her younger sister with fatal urosepsis. Family 2's strain was represented by a urine isolate from the index patient (father) with pyelonephritis and renal abscesses, blood and kidney drainage isolates from the daughter with emphysematous pyelonephritis, and urine and fecal isolates from the mother with cystitis...
April 24, 2017: Journal of Bacteriology
https://www.readbyqxmd.com/read/28437224/structure-process-and-culture-of-intensive-care-units-treating-patients-with-severe-traumatic-brain-injury-survey-of-centers-participating-in-the-american-college-of-surgeons-trauma-quality-improvement-program
#4
Aziz S Alali, Victroia McCredie, Todd G Mainprize, David Gomez, Avery B Nathens
Outcome after severe traumatic brain injury (TBI) differs substantially between hospitals. Explaining this variation begins with understanding the differences in structures and processes of care, particularly at intensive care units (ICUs) where acute TBI care takes place. We invited trauma medical directors (TMDs) from 187 centers participating in the American College of Surgeons Trauma Quality Improvement Program to complete a survey. The survey domains included ICU model, type, availability of specialized units, staff, training programs, standard protocols and order sets, approach to withdrawal of life support, and perceived level of neurosurgeons' engagement in the ICU management of TBI...
February 15, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28436760/diabetes-management-by-probiotics-current-knowledge-and-future-pespective
#5
Aziz Homayouni-Rad, Ahmad-Reza Soroush, Leila Khalili, Leila Norouzi-Panahi, Zahra Kasaie, Hanieh-Sadat Ejtahed
Diabetes mellitus, a multifactorial disorder, is related to the intestinal microbiota via numerous molecular mechanisms. The vast increase in the prevalence of diabetes and its associated complications requires a natural and safe solution. There is a growing evidence of gut microbiota effi ciency in improving insulin resistance, impaired insulin secretion, and metabolic complications in diabetic patients. Probiotics are defi ned as live microorganisms that, when ingested in adequate amounts, exert health benefi ts to the host...
April 24, 2017: International Journal for Vitamin and Nutrition Research. Journal International de Vitaminologie et de Nutrition
https://www.readbyqxmd.com/read/28436663/introducing-ionic-current-detection-for-x-ray-absorption-spectroscopy-in-liquid-cells
#6
Daniela Schön, Jie Xiao, Ronny Golnak, Marc F Tesch, Bernd Winter, Juan-Jesus Velasco-Velez, Emad F Aziz
Photons and electrons are two common relaxation products upon X-ray absorption, enabling fluorescence yield and electron yield detections for X-ray absorption spectroscopy (XAS). The ions that are created during the electron yield process are relaxation products too, which are exploited in this study to produce ion yield for XA detection. The ionic currents measured in a liquid cell filled with water or iron(III) nitrate aqueous solutions exhibit characteristic O K-edge and Fe L-edge absorption profiles as a function of excitation energy...
April 25, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28435997/assessment-of-organic-pollution-of-an-industrial-river-by-synchronous-fluorescence-and-uv-vis-spectroscopy-the-fensch-river-ne-france
#7
Aziz Assaad, Steve Pontvianne, Marie-Noëlle Pons
To rapidly monitor the surface water quality in terms of organic pollution of an industrial river undergoing restoration, optical methods (UV-visible spectrometry and fluorescence) were applied in parallel to classical physical-chemical analyses. UV-visible spectra were analyzed using the maximum of the second derivative at 225 nm (related to nitrates), specific absorbance at 254 nm (SUVA254), and the spectral slope between 275 and 295 nm (S 275-295) (related to the aromaticity and molecular weight of dissolved organic carbon)...
May 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28435764/a-case-of-well-differentiated-papillary-mesothelioma-of-the-male-peritoneum-successful-treatment-by-systemic-chemotherapy
#8
Aziz Bazine, Mohamed Fetohi, Tariq Namad, Asmae Benzekri, Brahim Zainoun, Rachid Tanz, Mohamed Ichou
Well-differentiated papillary mesothelioma of the peritoneum (WDPMP) is a rare subtype of epithelioid mesothelioma, which is usually seen in young women without a history of asbestos exposure, and generally, has an indolent course. The relative rarity of this neoplasm in males prompted us to report this case of a well-differentiated papillary mesothelioma of the peritoneum in a 36-year-old man. The patient, who had no history of asbestos exposure, presented with abdominal pain and ascites of unknown etiology...
March 19, 2017: Curēus
https://www.readbyqxmd.com/read/28434155/nitrogen-fertility-and-abiotic-stresses-management-in-cotton-crop-a-review
#9
Aziz Khan, Daniel Kean Yuen Tan, Muhammad Zahir Afridi, Honghai Luo, Shahbaz Atta Tung, Mir Ajab, Shah Fahad
This review outlines nitrogen (N) responses in crop production and potential management decisions to ameliorate abiotic stresses for better crop production. N is a primary constituent of the nucleotides and proteins that are essential for life. Production and application of N fertilizers consume huge amounts of energy, and excess is detrimental to the environment. Therefore, increasing plant N use efficiency (NUE) is important for the development of sustainable agriculture. NUE has a key role in crop yield and can be enhanced by controlling loss of fertilizers by application of humic acid and natural polymers (hydrogels), having high water-holding capacity which can improve plant performance under field conditions...
April 22, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28431781/clenbuterol-hydrochloride
#10
Abdulrahman A Al-Majed, Nasr Y Khalil, Ibraheem Khbrani, Hatem A Abdel-Aziz
Clenbuterol (Broncodil and trade) is a direct-acting sympathomimetic agent with mainly beta-adrenergic activity and a selective action on β2 receptors (a β2 agonist). It has properties similar to those of salbutamol. It is used as a bronchodilator in the management of reversible airways obstruction, as in asthma and in certain patients with chronic obstructive pulmonary disease. The uses, applications, and the synthetic pathways of this drug are outlined. Physical characteristics including: ionization constant, solubility, X-ray powder diffraction pattern, thermal methods of analysis, UV spectrum, IR spectrum, mass spectrum are all produced...
2017: Profiles of Drug Substances, Excipients, and related Methodology
https://www.readbyqxmd.com/read/28431779/propranolol
#11
Abdulrahman A Al-Majed, Ahmed H H Bakheit, Hatem A Abdel Aziz, Fahad M Alajmi, Haitham AlRabiah
Propranolol is a noncardioselective β-blocker. It is reported to have membrane-stabilizing properties, but it does not own intrinsic sympathomimetic activity. Propranolol hydrochloride is used to control hypertension, pheochromocytoma, myocardial infarction, cardiac arrhythmias, angina pectoris, and hypertrophic cardiomyopathy. It is also used to control symptoms of sympathetic overactivity in the management of hyperthyroidism, anxiety disorders, and tremor. Other indications cover the prophylaxis of migraine and of upper gastrointestinal bleeding in patients with portal hypertension...
2017: Profiles of Drug Substances, Excipients, and related Methodology
https://www.readbyqxmd.com/read/28431778/olmesartan
#12
Abdulrahman A Al-Majed, Ahmed H H Bakheit, Hatem A Abdel Aziz, Abdulelah A M Al-Jallal
Olmesartan is an angiotensin receptor blockers with actions similar to those of losartan; it is used for the treatment of high blood pressure by relaxing blood vessels for this reason blood can flow more easily. It could be used alone or in combination with other antihypertensive drugs. This chapter gives a comprehensive profile of olmesartan, containing detailed nomenclature, formulae, elemental analysis, and appearance of the drug. In addition this chapter also describes several methods of synthesis and usage of the olmesartan...
2017: Profiles of Drug Substances, Excipients, and related Methodology
https://www.readbyqxmd.com/read/28431479/pneumatic-jigging-influence-of-operating-parameters-on-separation-efficiency-of-solid-waste-materials
#13
Mohd Aizudin Abd Aziz, Khairuddin Md Isa, Radzuwan Ab Rashid
This article aims to provide insights into the factors that contribute to the separation efficiency of solid particles. In this study, a pneumatic jigging technique was used to assess the separation of solid waste materials that consisted of copper, glass and rubber insulator. Several initial experiments were carried out to evaluate the strengths and limitations of the technique. It is found that despite some limitations of the technique, all the samples prepared for the experiments were successfully separated...
April 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28429180/theoretical-models-for-the-thermo-gravitational-separation-process-in-porous-media-filled-by-n-component-mixtures
#14
Dimitri Mutschler, Mohamed Aziz Larabi, Abdelkader Mojtabi
The aim of this work is to present a theoretical analysis of the separation of an N-component mixture. In this study, two analytical models explaining the thermo-gravitational separation of components in N-component mixtures for vertical cavity filled by a porous medium are presented and assessed. The basic state and the separation are expressed in terms of the separation ratio, and the Lewis, cross-diffusion and Rayleigh numbers. Our computational analysis confirms that, for the given values of the mass fractions, thermodiffusion can be measured with a thermo-gravitational column, strongly supporting the experimentally determined transport coefficients...
April 2017: European Physical Journal. E, Soft Matter
https://www.readbyqxmd.com/read/28426813/correction-phenolic-extract-from-oleaster-olea-europaea-var-sylvestris-leaves-reduces-colon-cancer-growth-and-induces-caspase-dependent-apoptosis-in-colon-cancer-cells-via-the-mitochondrial-apoptotic-pathway
#15
Wafa Zeriouh, Abdelhafid Nani, Meriem Belarbi, Adélie Dumont, Charlotte de Rosny, Ikram Aboura, Fatima Zahra Ghanemi, Babar Murtaza, Danish Patoli, Charles Thomas, Lionel Apetoh, Cédric Rébé, Dominique Delmas, Naim Akhtar Khan, François Ghiringhelli, Mickael Rialland, Aziz Hichami
[This corrects the article DOI: 10.1371/journal.pone.0170823.].
2017: PloS One
https://www.readbyqxmd.com/read/28426420/disruption-of-egg-production-by-triclabendazole-resistant-fasciola-hepatica-following-treatment-with-a-commercial-preparation-of-myrrh-mirazid
#16
Mohamed M O Abdelaal, Gerard P Brennan, Robert E B Hanna, Ahmed Abdel-Aziz, Ian Fairweather
An in vitro study has been carried out to monitor changes to the female reproductive system in adult triclabendazole (TCBZ)-resistant Fasciola hepatica following treatment with a commercial preparation of myrrh ("Mirazid"). Flukes were immersed for 6 h and 24 h in myrrh extract at a concentration of 200 µg/ml, then processed for histological and transmission electron microscope (TEM) examination of the uterus, Mehlis' gland, ovary and vitellaria. Egg production had become abnormal at 6 h post-treatment (pt), with the uterine lumen being filled with free vitelline cells and masses of shell protein material; few eggs were present...
June 1, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/28424994/modulation-of-gastrointestinal-motility-beyond-metoclopramide-and-domperidone-pharmacological-and-clinical-evidence-for-phytotherapy-in-functional-gastrointestinal-disorders
#17
Ahmed Madisch, Bettina R Vinson, Heba Abdel-Aziz, Olaf Kelber, Karen Nieber, Karin Kraft, Martin Storr
The prokinetic cisapride, an important therapeutic option in functional gastrointestinal (GI) disorders, was withdrawn from the market 15 years ago due to rare severe side effects. Likewise in 2014, the use of metoclopramide (MCP) and domperidone in functional GI disorders (FGID) was restricted, consequently leaving a therapeutic gap in clinical practice. A systematic review revealed that the herbal medicinal product (HMP) STW 5 presents a therapeutic option equivalent to MCP and cisapride. STW 5 is the only HMP for which efficacy has been shown in randomized controlled clinical trials (RCTs) in functional dyspepsia and irritable bowel syndrome, based on its multitarget effect on numerous etiological factors...
April 19, 2017: Wiener Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28424905/association-of-stat4-rs7574865-and-ptpn22-rs2476601-polymorphisms-with-rheumatoid-arthritis-and-non-systemically-reacting-antibodies-in-egyptian-patients
#18
Dalia El-Lebedy, Hala Raslan, Alshaymaa Ibrahim, Ingy Ashmawy, Shereen Abd El-Aziz, Asmaa M Mohammed
The aim of this study was to investigate association of protein tyrosine phosphatase non-receptor type 22 (PTPN22) rs2476601 and signal transducer and activator of transcription 4 (STAT4) rs7574865 polymorphisms with rheumatoid arthritis (RA) susceptibility and to assess potential association with the status of rheumatoid factor (RF) and anti-cyclic citrullinated peptide (anti-CCP) antibodies, serum neopterin, and disease activity. RF, anti-CCP antibodies, and neopterin were assayed in serum of 100 unrelated RA patients and 114 controls...
April 19, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28424408/synthetic-lethality-of-glutaminolysis-inhibition-autophagy-inactivation-and-asparagine-depletion-in-colon-cancer
#19
Jiaqiu Li, Ping Song, Liyuan Zhu, Neelum Aziz, Qiyin Zhou, Yulong Zhang, Wenxia Xu, Lifeng Feng, Dingwei Chen, Xian Wang, Hongchuan Jin
Cancer cells reprogram metabolism to coordinate their rapid growth. They addict on glutamine metabolism for adenosine triphosphate generation and macromolecule biosynthesis. In this study, we report that glutamine deprivation retarded cell growth and induced prosurvival autophagy. Autophagy inhibition by chloroquine significantly enhanced glutamine starvation induced growth inhibition and apoptosis activation. Asparagine deprivation by L-asparaginase exacerbated growth inhibition induced by glutamine starvation and autophagy blockage...
April 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423981/post-partum-follow-up-of-women-with-gestational-diabetes-mellitus-effectiveness-determinants-and-barriers
#20
Saleha Aziz, Tazeen Fatima Munim, Syeda Sadia Fatima
BACKGROUND: Despite the recommendations for postpartum blood glucose monitoring post gestational diabetes mellitus (GDM); scientific evidence reveals that these recommendations may not be fully complied to. This study aimed to follow-up women up to two years post-delivery with pregnancies complicated by GDM and healthy controls to assess this fact. METHODS: Women with GDM (n = 78) and normal glucose tolerant (n = 89) delivered in 2014 were followed up for two years...
April 19, 2017: Journal of Maternal-fetal & Neonatal Medicine
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