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https://www.readbyqxmd.com/read/28528295/a-machine-learning-graph-based-approach-for-3d-segmentation-of-bruch-s-membrane-opening-from-glaucomatous-sd-oct-volumes
#1
Mohammad Saleh Miri, Michael D Abràmoff, Young H Kwon, Milan Sonka, Mona K Garvin
Bruch's membrane opening-minimum rim width (BMO-MRW) is a recently proposed structural parameter which estimates the remaining nerve fiber bundles in the retina and is superior to other conventional structural parameters for diagnosing glaucoma. Measuring this structural parameter requires identification of BMO locations within spectral domain-optical coherence tomography (SD-OCT) volumes. While most automated approaches for segmentation of the BMO either segment the 2D projection of BMO points or identify BMO points in individual B-scans, in this work, we propose a machine-learning graph-based approach for true 3D segmentation of BMO from glaucomatous SD-OCT volumes...
May 6, 2017: Medical Image Analysis
https://www.readbyqxmd.com/read/28526626/longevity-and-healthy-ageing-genes-foxo3a-and-sirt3-serum-protein-marker-and-new-road-map-to-burst-oxidative-stress-by-withania-somnifera
#2
Rashmita Pradhan, Rahul Kumar, Shashank Shekhar, Nitish Rai, Akash Ambashtha, Joyita Banerjee, Mona Pathak, S N Dwivedi, Sharmistha Dey, Aparajit B Dey
BACKGROUND: Ageing process is characterized by a decline in function; different age related diseases and excessive age associated mortality. There has always been a quest for easily accessible biomarkers to monitor and identify the development of age-associated stress for providing new anti-ageing strategies. Forkhead box protein O3A (FOXO3A) and Sirtuin3 (SIRT3) are such potential markers which plays important role in a wide variety of cellular mechanisms and has been proposed to be an ideal candidate to study longevity and are potential candidate for healthy ageing by oxidative burst...
May 16, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28526374/impact-of-high-dose-vitamin-d3-on-plasma-free-25-hydroxyvitamin-d-concentrations-and-antimicrobial-peptides-in-critically-ill-mechanically-ventilated-adults
#3
Jenny E Han, Jessica A Alvarez, Jennifer L Jones, Vin Tangpricha, Mona A Brown, Li Hao, Lou Ann S Brown, Greg S Martin, Thomas R Ziegler
OBJECTIVES: High-dose vitamin D3 increases plasma total 25-hydroxyvitamin D [25(OH)D] in critically ill, ventilated patients; however, to our knowledge, the effect on plasma levels of free (nonprotein-bound) 25(OH)D has not been investigated in critical illness. Moreover, the relationship of free 25(OH)D and the regulation of endogenous antimicrobial peptides (AMPs) remains unknown. The aims of this study were to determine in critically ill adults with respiratory failure the effect of previous high-dose regimens of vitamin D3 on free 25(OH)D concentrations, the relationship of free 25(OH)D with circulating cathelicidin (LL-37) and human beta-defensin-2 (hBD-2), and the associations between plasma levels of free 25(OH)D and these AMPs to alveolar macrophage phagocytosis function...
June 2017: Nutrition
https://www.readbyqxmd.com/read/28525943/effect-of-au-dextran-nps-as-anti-tumor-agent-against-eac-and-solid-tumor-in-mice-by-biochemical-evaluations-and-histopathological-investigations
#4
Dalia Medhat, Jihan Hussein, Mehrez E El-Naggar, Mohamed F Attia, Mona Anwar, Yasmine Abdel Latif, Hoda F Booles, Safaa Morsy, Abdel Razik Farrag, Wagdy K B Khalil, Zakaria El-Khayat
Dextran-capped gold nanoparticles (Au-dextran NPs) were prepared exploiting the natural polysaccharide polymer as both reducing and stabilizing agent in the synthesis process, aiming at studying their antitumor effect on solid carcinoma and EAC-bearing mice. To this end, Au-dextran NPs were designed via simple eco-friendly chemical reaction and they were characterized revealing the monodispersed particles with narrow distributed size of around 49nm with high negative charge. In vivo experiments were performed on mice...
May 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28525622/dietary-therapy-with-the-crohn-s-disease-exclusion-diet-is-a-successful-strategy-for-induction-of-remission-in-children-and-adults-failing-biological-therapy
#5
Rotem Sigall Boneh, Chen Sarbagili-Shabat, Heinit Yanai, Irit Chermesh, Sivan Ben Avraham, Mona Boaz, Arie Levine
Background: Loss of response (LoR) to biologics in Crohn's disease (CD) is a significant clinical problem. Dietary therapy as a treatment strategy in this setting has not been previously reported. We report the use of dietary strategies using enteral nutrition coupled with the Crohn's Disease Exclusion Diet (CDED) for LoR to infliximab or adalimumab as a single center experience. Methods: Patients with LoR to a biologic despite dose escalation or combination therapy were treated with partial enteral nutrition (PEN) by a polymeric formula and the CDED for 12 weeks...
May 19, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28524341/randomized-controlled-study-of-a-novel-triple-nitazoxanide-ntz-containing-therapeutic-regimen-versus-the-traditional-regimen-for-eradication-of-helicobacter-pylori-infection
#6
Mona Ah Shehata, Raghda Talaat, Samah Soliman, Huda Elmesseri, Shaimaa Soliman, Sherief Abd-Elsalam
BACKGROUND: Helicobacter pylori infection has become more and more resistant to conventional first-line treatment regimens. So, there is a considerable interest in evaluating new antibiotic combinations and regimens. Nitazoxanide is an anti-infective drug with demonstrated activity against protozoa and anaerobic bacteria including H. pylori. This work is designed to evaluate the efficacy and safety of a unique triple nitazoxanide-containing regimen as a treatment regimen in Egyptian patients with H...
May 19, 2017: Helicobacter
https://www.readbyqxmd.com/read/28521696/nanotechnology-as-a-promising-strategy-for-anticancer-drug-delivery
#7
Mona Basha
Cancer was and still a very stressful and urgent disease condition representing a leading cause of death in developed as well as developing countries. Although, much research work in both medical and pharmaceutical fields has evolved in the past few years in addition to some promising clinical trials and few market products, cancer becomes much wilder, threatening and getting more lives. Most approaches have focused on the synthesis of new active ingredients or chemical modification of available ones, formulating them in suitable dosage forms aiming for targeted and effective drug delivery with minimal side effects...
May 15, 2017: Current Drug Delivery
https://www.readbyqxmd.com/read/28521068/association-of-outcomes-and-anti-xa-levels-in-the-treatment-of-pediatric-venous-thromboembolism
#8
Jennifer L Fan, Laura E Roberts, Michael E Scheurer, Donald L Yee, Mona D Shah, YoungNa J Lee-Kim
BACKGROUND: There are few data in the pediatric population evaluating the relationship between measured anti-Xa levels during enoxaparin therapy and thrombotic outcomes. OBJECTIVE: To determine whether there is a difference in outcomes in children who receive enoxaparin with mean anti-Xa levels between 0.45 and 0.79 unit/ml (low therapeutic range) versus between 0.80 and 1.05 unit/ml (high therapeutic range) throughout their course of their treatment. METHODS: We retrospectively identified subjects with uncomplicated venous thromboembolism treated with enoxaparin...
May 18, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28520529/synthesis-of-theranostic-epithelial-cell-adhesion-molecule-targeted-mesoporous-silica-nanoparticle-with-gold-gatekeeper-for-hepatocellular-carcinoma
#9
Maryam Babaei, Khalil Abnous, Seyed Mohammad Taghdisi, Sara Amel Farzad, Mohammad Taghi Peivandi, Mohammad Ramezani, Mona Alibolandi
AIM: In this study, we report the fabrication of epithelial cell adhesion molecule targeted 5-fluorouracil (5-FU) encapsulated PEGylated mesoporous silica nanoparticles (NPs) hybridized with gold NPs (PEG-Au@Si-5-FU) as gatekeeper for theranostic applications. MATERIALS & METHODS: The prepared targeted and nontargeted formulations were evaluated in vitro in terms of their cellular internalization and toxicity. The prepared theranostic hybrid system was also implemented for computed tomography of HepG2 tumor-bearing nude mice in vivo...
May 18, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28516248/environmental-toxicants-incidence-of-degenerative-diseases-and-therapies-from-the-epigenetic-point-of-view
#10
REVIEW
Mahshid Hodjat, Soheila Rahmani, Fazlullah Khan, Kamal Niaz, Mona Navaei-Nigjeh, Solmaz Mohammadi Nejad, Mohammad Abdollahi
Epigenotoxicology is an emerging field of study that investigates the non-genotoxic epigenetic effects of environmental toxicants resulting in alteration of normal gene expression and disruption of cell function. Recent findings on the role of toxicant-induced epigenetic modifications in the development of degenerative diseases have opened up a promising research direction to explore epigenetic therapy approaches and related prognostic biomarkers. In this review, we presented comprehensive data on epigenetic alterations identified in various diseases, including cancer, autoimmune disorders, pulmonary conditions as well as cardiovascular, gastrointestinal and bone disease...
May 17, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28515770/high-level-expression-of-recombinant-human-growth-hormone-in-escherichia-coli-crucial-role-of-translation-initiation-region
#11
Mahsa Ghavim, Khalil Abnous, Fatemeh Arasteh, Sahar Taghavi, Maryam Sadat Nabavinia, Mona Alibolandi, Mohammad Ramezani
For high-throughput production of recombinant protein in Escherichia coli (E. coli), besides important parameters such as efficient vector with strong promoter and compatible host, other important issues including codon usage, rare codons, and GC content specially at N-terminal region should be considered. In the current study, the effect of decreasing the percentage of GC nucleotides and optimizing codon usage at N-terminal region of human growth hormone (hGH) cDNA on the level of its expression in E. coli were investigated...
April 2017: Research in Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28515366/experimental-lupus-is-aggravated-in-mouse-strains-with-impaired-induction-of-neutrophil-extracellular-traps
#12
Deborah Kienhöfer, Jonas Hahn, Julia Stoof, Janka Zsófia Csepregi, Christiane Reinwald, Vilma Urbonaviciute, Caroline Johnsson, Christian Maueröder, Malgorzata J Podolska, Mona H Biermann, Moritz Leppkes, Thomas Harrer, Malin Hultqvist, Peter Olofsson, Luis E Munoz, Attila Mocsai, Martin Herrmann, Georg Schett, Rikard Holmdahl, Markus H Hoffmann
Many effector mechanisms of neutrophils have been implicated in the pathogenesis of systemic lupus erythematosus (SLE). Neutrophil extracellular traps (NETs) have been assigned a particularly detrimental role. Here we investigated the functional impact of neutrophils and NETs on a mouse model of lupus triggered by intraperitoneal injection of the cell death-inducing alkane pristane. Pristane-induced lupus (PIL) was aggravated in 2 mouse strains with impaired induction of NET formation, i.e., NOX2-deficient (Ncf1-mutated) and peptidyl arginine deiminase 4-deficient (PAD4-deficient) mice, as seen from elevated levels of antinuclear autoantibodies (ANAs) and exacerbated glomerulonephritis...
May 18, 2017: JCI Insight
https://www.readbyqxmd.com/read/28514717/quantification-of-active-ingredients-in-semi-solid-pharmaceutical-formulations-by-near-infrared-spectroscopy
#13
Lisa B Schlegel, Manfred Schubert-Zsilavecz, Mona Abdel-Tawab
Near infrared (NIR) spectroscopy is increasingly gaining significance in the pharmaceutical industry for quality and in-process control. However, the potential of this method for quantitative quality control in pharmacies has long been neglected and little data is available on its application in analysis of creams and ointments. This study evaluated the applicability of NIR spectrometer with limited wavelength range (1000-1900nm) for quantitative quality control of six different dermatological semi-solid pharmaceutical preparations...
May 6, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28513340/questions-about-cervical-and-breast-cancer-screening-knowledge-practice-and-outcomes-a-review-of-demographic-and-health-surveys
#14
Laura Viens, Doug Perin, Virginia Senkomago, Antonio Neri, Mona Saraiya
United Nation's Sustainable Development Goals and the World Health Organization's Global Monitoring Framework support a strong global commitment to reducing the high burden of cervical and breast cancers among low- and middle-income countries. Strategies include vaccination, screening, and early diagnosis. Population-based surveys, such as those conducted by the Demographic and Health Surveys (DHS) Program, can collect the information needed to guide cancer control efforts in a standardized comparable manner...
May 2017: Journal of Women's Health
https://www.readbyqxmd.com/read/28513230/association-of-renin-angiotensin-aldosterone-system-gene-polymorphisms-with-left-ventricular-hypertrophy-in-patients-with-heart-failure-with-preserved-ejection-fraction-a-case-control-study
#15
Ehsan Bahramali, Negar Firouzabadi, Mona Rajabi, Alireza Manafi, Mehrdad Zarghami, Seyyed Mohammad Mousavi, Javad Jamshidi
BACKGROUND: Heart failure with preserved ejection fraction (HFpEF) has close ties with hypertension, though risk factors to the development of HFpEF in hypertensive patients are not fully understood. Left ventricular hypertrophy (LVH) signifies the susceptibility toward diastolic heart dysfunction, and genetic determinants of LVH as a result may serve as risk predictors for HFpEF in hypertension. We investigated the role of three renin-angiotensin-aldosterone system (RAAS) gene polymorphisms in the development of LVH in hypertensive patients with a diagnosis of HFpEF...
May 17, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28512555/assessment-of-obesity-and-hepatic-late-adverse-effects-in-the-egyptian-survivors-of-pediatric-acute-lymphoblastic-leukemia-a-single-center-study
#16
Farida H El-Rashedy, Mahmoud A El-Hawy, Sally M El Hefnawy, Mona M Mohammed
BACKGROUND: Childhood acute lymphoblastic leukemia (ALL) with current cure rates reaching 80% emphasizes the necessity to determine treatment-related long-term effects. The aim of this study is to estimate the prevalence of overweight, obesity, and hepatic late adverse effects in a cohort of ALL survivors treated at the Hematology and Oncology Unit, Pediatrics Department, Menoufia University, Egypt. METHODS: In this case-control study, height, weight, and body mass index (BMI) were assessed for 35 pediatric ALL survivors and 35 healthy children...
2017: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/28512536/effect-of-smear-clear-and-some-other-commonly-used-irrigants-on-dislodgement-resistance-of-mineral-trioxide-aggregate-to-root-dentin
#17
Mona Sadegh, Hasti Sohrabi, Mohamadjavad Kharazifard, Farzaneh Afkhami
BACKGROUND: This study aimed to assess the push-out bond strength of mineral trioxide aggregate (MTA) to root canal dentin after irrigation with Smear Clear in comparison with 2.5% sodium hypochlorite (NaOCl), 2% chlorhexidine (CHX) and saline as commonly used root canal irrigants. MATERIAL AND METHODS: The coronal and mid-root areas of maxillary anterior teeth were horizontally sectioned into one-millimeter thick slices. The root canal lumen of dentinal slices was dilated using a diamond bur with 1...
May 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28512220/increasing-intracellular-magnesium-levels-with-the-31-amino-acid-mgts-protein
#18
Hanbo Wang, Xuefeng Yin, Mona Wu Orr, Michael Dambach, Rebecca Curtis, Gisela Storz
Synthesis of the 31-amino acid, inner membrane protein MgtS (formerly denoted YneM) is induced by very low Mg(2+) in a PhoPQ-dependent manner in Escherichia coli Here we report that MgtS acts to increase intracellular Mg(2+) levels and maintain cell integrity upon Mg(2+) depletion. Upon development of a functional tagged derivative of MgtS, we found that MgtS interacts with MgtA to increase the levels of this P-type ATPase Mg(2+) transporter under Mg(2+)-limiting conditions. Correspondingly, the effects of MgtS upon Mg(2+) limitation are lost in a ∆mgtA mutant, and MgtA overexpression can suppress the ∆mgtS phenotype...
May 16, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28510353/crystal-packing-driven-enrichment-of-atropoisomers
#19
Mona Sharafi, Joseph P Campbell, Sinu C Rajappan, Natavan Dudkina, Danielle L Gray, Toby J Woods, Jianing Li, Severin T Schneebeli
Crystal-packing forces can have a significant impact on the relative stabilities of different molecules and their conformations. The magnitude of such effects is, however, not yet well understood. Herein we show, that crystal packing can completely overrule the relative stabilities of different stereoisomers in solution. Heating of atropoisomers (i.e. "frozen-out" conformational isomers) in solution leads to complex mixtures. In contrast, solid-state heating selectively amplifies minor (<25 mole %) components of these solution-phase mixtures...
May 16, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28509566/respiratory-motion-during-90-yttrium-pet-contributes-to-underestimation-of-tumor-dose-and-overestimation-of-normal-liver-tissue-dose
#20
Line Ausland, Mona-Elisabeth Revheim, Arne Skretting, Caroline Stokke
Background Yttrium-90 dosimetry after radioembolization is reliant on accurate quantitative imaging of the microsphere deposition. Previous studies have focused on the correction of geometrical resolution effects. Purpose To uncover additional effects of respiratory motion. Material and Methods Mathematical models describing spherical tumors were formed and two blurring effects, limited geometrical resolution and respiratory motion, were simulated. The virtual images were used as basis for dose volume histogram estimations by convolving the radioactivity representations with a dose point kernel...
January 1, 2017: Acta Radiologica
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