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https://www.readbyqxmd.com/read/29334487/a-novel-hinged-scleral-patch-graft-for-the-repair-of-overfiltration-and-bleb-leaks
#1
Pierre G Mardelli, Marc E Mardelli, Zeina Bakkour
INTRODUCTION: The repair of the scleral flap is often needed in cases of severe hypotony or bleb leaks with over filtration. We present a simple novel technique to restore the hinged flap using a scleral patch graft. MATERIALS AND METHODS: We present 4 eyes of 4 patients that present with hypotony (IOP <6▒mm Hg) from overfiltration secondary to loose scleral flap (2 eyes) and bleb leak (2 eyes). A scleral patch from human donor preserved in 95% ehtanol is cut in a trapezoidal shape and placed over the area of filtration after a conjunctival peritomy...
January 12, 2018: Journal of Glaucoma
https://www.readbyqxmd.com/read/29333953/the-irreversible-erbb1-2-4-inhibitor-neratinib-interacts-with-the-bcl-2-inhibitor-venetoclax-to-kill-mammary-cancer-cells
#2
Laurence Booth, Jane L Roberts, Francesca Avogadri-Connors, Richard E CutlerJr, Alshad S Lalani, Andrew Poklepovic, Paul Dent
The irreversible ERBB1/2/4 inhibitor, neratinib, down-regulates the expression of ERBB1/2/4 as well as the levels of MCL-1 and BCL-XL. Venetoclax (ABT199) is a BCL-2 inhibitor. At physiologic concentrations neratinib interacted in a synergistic fashion with venetoclax to kill HER2+ and TNBC mammary carcinoma cells. This was associated with the drug-combination: reducing the expression and phosphorylation of ERBB1/2/3; in an eIF2α-dependent fashion reducing the expression of MCL-1 and BCL-XL and increasing the expression of Beclin1 and ATG5; and increasing the activity of the ATM-AMPKα-ULK1 S317 pathway which was causal in the formation of toxic autophagosomes...
January 15, 2018: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/29333918/modified-second-stage-hughes-tarsoconjunctival-reconstruction-for-lower-eyelid-defects
#3
Shruti Aggarwal, Christopher T Shah, Maria Kirzhner
To describe a novel technique utilizing an amniotic membrane graft (AMT) to create the mucocutaneous portion of the lower eyelid margin in a modified Hughes eyelid reconstruction for secondary revision or prevention of a hyperemic, hypertrophic conjunctival margin with excessive discharge. This was a retrospective, non-comparative interventional study. Thirty consecutive patients who underwent a modified Hughes reconstruction were included. The first step of the reconstruction was performed in a standard fashion using a tarsoconjunctival flap from the ipsilateral upper eyelid...
January 15, 2018: Orbit
https://www.readbyqxmd.com/read/29333727/the-relation-between-maximal-voluntary-force-in-m-palmaris-longus-and-the-temporal-and-spatial-summation-of-muscle-fiber-recruitment-in-human-subjects
#4
Cécyl G Claudel, Waqas Ahmed, Vibeke S Elbrønd, Adrian P Harrison, Else Marie Bartels
This study aimed at looking at the frequency (T-score) and the amplitude (S-score) of fiber use during contraction of a forearm muscle, m. palmaris longus, as measured by acoustic myography (AMG). An additional aim was to relate the T- and S-scores to the recorded force obtained from a hand dynamometer. The hypothesis being that temporal and spatial summation of muscle fiber contraction in a given muscle during a given movement, can together describe a given obtained force. Force measurements were carried out on 12 healthy human subjects aged 19-68 years (6 men & 6 women), while their m...
January 2018: Physiological Reports
https://www.readbyqxmd.com/read/29333697/lactic-acid-bacteria-may-impact-intestinal-barrier-function-by-modulating-goblet-cells
#5
Chengcheng Ren, Jelleke Dokter-Fokkens, Susana Figueroa Lozano, Qiuxiang Zhang, Bart J de Haan, Hao Zhang, Marijke M Faas, Paul de Vos
SCOPE: Lactic acid bacteria (LAB) are recognized to promote gastrointestinal health by mechanisms that are not fully understood. LABs might modulate the mucus and thereby enhance intestinal barrier function. Herein, we investigated effects of different LAB strains and species on goblet cell genes involved in mucus synthesis. METHODS AND RESULTS: Gene expression profiles of goblet cell-associated products (mucin MUC2, trefoil factor 3, resistin-like molecule β, carbohydrate sulfotransferase 5, and galactose-3-O-sulfotransferase 2) induced by LAB or their derived conditioned medium in human goblet cell line LS174T were studied...
January 15, 2018: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29333350/scale-up-of-a-luminescent-solar-concentrator-based-photomicroreactor-via-numbering-up
#6
Fang Zhao, Dario Cambié, Jeroen Janse, Eric W Wieland, Koen P L Kuijpers, Volker Hessel, Michael G Debije, Timothy Noël
The use of solar energy to power chemical reactions is a long-standing dream of the chemical community. Recently, visible-light-mediated photoredox catalysis has been recognized as the ideal catalytic transformation to convert solar energy into chemical bonds. However, scaling photochemical transformations has been extremely challenging due to Bouguer-Lambert-Beer law. Recently, we have pioneered the development of luminescent solar concentrator photomicroreactors (LSC-PMs), which display an excellent energy efficiency...
January 2, 2018: ACS Sustainable Chemistry & Engineering
https://www.readbyqxmd.com/read/29333120/focused-transhepatic-electroporation-mediated-by-hypersaline-infusion-through-the-portal-vein-in-rat-model-preliminary-results-on-differential-conductivity
#7
Clara Pañella, Quim Castellví, Xavier Moll, Rita Quesada, Alberto Villanueva, Mar Iglesias, Dolores Naranjo, Patricia Sánchez-Velázquez, Anna Andaluz, Luís Grande, Antoni Ivorra, Fernando Burdío
Background: Spread hepatic tumours are not suitable for treatment either by surgery or conventional ablation methods. The aim of this study was to evaluate feasibility and safety of selectively increasing the healthy hepatic conductivity by the hypersaline infusion (HI) through the portal vein. We hypothesize this will allow simultaneous safe treatment of all nodules by irreversible electroporation (IRE) when applied in a transhepatic fashion. Material and methods: Sprague Dawley (Group A, n = 10) and Athymic rats with implanted hepatic tumour (Group B, n = 8) were employed...
December 2017: Radiology and Oncology
https://www.readbyqxmd.com/read/29332742/the-effects-of-dorso-lumbar-motion-restriction-on-emg-activity-of-selected-muscles-during-running
#8
Joseph J Morley, Edward Traum
The effects of restricting dorso-lumbar spine mobility on electromyographic activity of the erector spinae, quadriceps femoris, hamstrings and gastrocnemius muscles in runners was investigated. Thermoplastic casting material was fashioned into a rigid orthosis and used to restrict spinal motion during running. Volunteers ran on a treadmill at 2.78 m/sec, under normal conditions and with spinal motion restricted. Surface electromyographic data was collected during both sets of trials. Normal electromyographic data was also compared with previous authors to determine similarity with their electromyographic data...
January 2018: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/29332077/stereotactic-radiofrequency-lesioning-for-movement-disorders
#9
Takaomi Taira, Shiro Horisawa, Nobuhiko Takeda, Prajakta Ghate
During the past 2 decades, deep brain stimulation (DBS) took over the position of radiofrequency (RF) lesioning of thalamic or pallidal targets for control of movement disorders. Superiority of DBS over RF lesioning is widely accepted, and most neurosurgeons even regard RF lesioning to be old-fashioned and dangerous. Such concepts emerged from the data of old stereotactic operations with ventriculography and without computerized planning. Hardware-related complications are not negligible in long-term DBS therapy, and DBS only controls the symptoms...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29331635/sotatercept-with-long-term-extension-for-the-treatment-of-anaemia-in-patients-with-lower-risk-myelodysplastic-syndromes-a-phase-2-dose-ranging-trial
#10
Rami Komrokji, Guillermo Garcia-Manero, Lionel Ades, Thomas Prebet, David P Steensma, Joseph G Jurcic, Mikkael A Sekeres, Jesus Berdeja, Michael R Savona, Odile Beyne-Rauzy, Aspasia Stamatoullas, Amy E DeZern, Jacques Delaunay, Gautam Borthakur, Robert Rifkin, Thomas E Boyd, Abderrhamane Laadem, Bond Vo, Jennie Zhang, Marie Puccio-Pick, Kenneth M Attie, Pierre Fenaux, Alan F List
BACKGROUND: Myelodysplastic syndromes are characterised by ineffective erythropoiesis leading to anaemia. Sotatercept (ACE-011) is a novel activin receptor type IIA fusion protein that acts as a ligand trap to neutralise negative regulators of late-stage erythropoiesis. The aim of the study was to establish a safe and effective dose of sotatercept for the treatment of anaemia in patients with lower-risk myelodysplastic syndromes. METHODS: This open-label, multicentre, dose-ranging, phase 2 trial took place at 11 treatment centres in the USA and France...
January 10, 2018: Lancet Haematology
https://www.readbyqxmd.com/read/29331019/cis-regulator-runaway-and-divergence-in-asexuals
#11
Frédéric Fyon, Thomas Lenormand
With the advent of new sequencing technologies, the evolution of gene expression is becoming a subject of intensive genomic research, with sparking debates upon the role played by these kinds of changes in adaptive evolution and speciation. In this paper, we model expression evolution in species differing by their reproductive systems. We consider different rates of sexual versus asexual reproduction and the different type of parthenogenesis (apomixis and the various modes of automixis). We show that competition for expression leads to two selective processes on cis-regulatory regions that act independently to organism-level adaptation...
January 13, 2018: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/29330811/a-nationwide-survey-of-factors-influencing-adherence-to-ocular-hypotensive-eyedrops-in-japan
#12
Toyoaki Tsumura, Kenji Kashiwagi, Yasuyuki Suzuki, Keiji Yoshikawa, Hirotaka Suzumura, Toshine Maeda, Ryuji Takeda, Hitomi Saito, Makoto Araie
INTRODUCTION: Few reports have investigated the status of adherence in Japan on a large scale. We aimed to investigate the status of adherence to topical glaucoma treatment and its associated factors. METHODS: A nationwide survey was conducted as a prospective fashion. Participants in this survey were subjects with primary open-angle glaucoma, normal-tension glaucoma, or ocular hypertension or pseudoexfoliation glaucoma who had been prescribed anti-glaucoma ophthalmic eyedrops and whose ophthalmologist considered prescribing any fixed combination of ocular hypotensive eyedrops for the first time between 2011 and 2012...
January 12, 2018: International Ophthalmology
https://www.readbyqxmd.com/read/29330723/association-between-the-incidence-of-pancreatic-fistula-after-pancreaticoduodenectomy-and-the-degree-of-pancreatic-fibrosis
#13
Yong Deng, Baixiong Zhao, Meiwen Yang, Chuanhong Li, Leida Zhang
OBJECTIVE: The objective of this study is to investigate the association between the incidence of pancreatic fistula after pancreaticoduodenectomy (PD) and the degree of pancreatic fibrosis. METHOD: Between January 2013 and December 2016, the analysis of the clinical data of 529 cases of pancreaticoduodenectomy patients of our hospital was performed in a retrospective fashion. The univariate analysis and multivariate analysis were done using the Pearson chi-squared test and binary logistic regression analysis model; correlations were analyzed by Spearman rank correlation analysis...
January 12, 2018: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/29330441/pathway-design-using-de-novo-steps-through-uncharted-biochemical-spaces
#14
Akhil Kumar, Lin Wang, Chiam Yu Ng, Costas D Maranas
Existing retrosynthesis tools generally traverse production routes from a source to a sink metabolite using known enzymes or de novo steps. Generally, important considerations such as blending known transformations with putative steps, complexity of pathway topology, mass conservation, cofactor balance, thermodynamic feasibility, microbial chassis selection, and cost are largely dealt with in a posteriori fashion. The computational procedure we present here designs bioconversion routes while simultaneously considering any combination of the aforementioned design criteria...
January 12, 2018: Nature Communications
https://www.readbyqxmd.com/read/29330182/fluorescence-recovery-allows-the-implementation-of-a-fluorescence-reporter-gene-platform-applicable-for-the-detection-and-quantification-of-horizontal-gene-transfer-in-anoxic-environments
#15
Rafael Pinilla, Leise Riber, Søren J Sørensen
The study of horizontal gene transfer (HGT) in microbial communities has been revolutionized by significant advances in cultivation-independent methods based on fluorescence reporter gene technologies. Recently, the combination of these novel approaches with flow cytometry has presented itself as one of the most powerful tools to study the spread of mobile genetic elements (MGEs) in the environment. However, the use of fluorescent markers like green fluorescent protein (GFP) and mCherry is limited by environmental constraints that affect the correct maturation of their fluorophores, such as oxygen availability and pH levels...
January 12, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29329233/dose-dependent-effects-of-randomized-intraduodenal-whey-protein-loads-on-glucose-gut-hormone-and-amino-acid-concentrations-in-healthy-older-and-younger-men
#16
Caroline Giezenaar, Natalie D Luscombe-Marsh, Amy T Hutchison, Scott Standfield, Christine Feinle-Bisset, Michael Horowitz, Ian Chapman, Stijn Soenen
Protein-rich supplements are used widely for the prevention and management of malnutrition in older people. We have reported that healthy older, compared to younger, adults have less suppression of energy intake by whey-protein-effects on appetite-related hormones are unknown. The objective was to determine the effects of intraduodenally administered whey-protein on glucose, gut hormone, and amino acid concentrations, and their relation to subsequent ad libitum energy intake at a buffet meal, in healthy older and younger men...
January 12, 2018: Nutrients
https://www.readbyqxmd.com/read/29328926/dna-damage-associated-oligodendrocyte-degeneration-precedes-amyloid-pathology-and-contributes-to-alzheimer-s-and-dementia
#17
Kai-Hei Tse, Aifang Cheng, Fulin Ma, Karl Herrup
INTRODUCTION: In looking for novel non-amyloid-based etiologies for Alzheimer's disease, we explore the hypothesis that age-related myelin loss is an attractive explanation for age-associated cognitive decline and dementia. METHODS: We performed a meta-analysis of data in the National Alzheimer's Coordinating Center database accompanied by quantitative histopathology of myelin and oligodendrocytes (OLs) in frontal cortices of 24 clinically characterized individuals...
January 9, 2018: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
https://www.readbyqxmd.com/read/29328804/replacement-of-the-nose
#18
Harold Ellis
Today's reconstructive surgeons may not be aware that replacement of the nose was carried out successfully as long ago as the 16th century by the surgeon Gaspar Taliacozzo of Bologna, Italy, who published a detailed and illustrated account of his operation in 1597. This procedure comprised raising a flap of skin from the upper arm to reconstruct the nose. The arm was kept in place, with the hand resting on the patient's head, using elaborate splinting until adherence had taken place; the flap was then detached from the donor arm...
May 2017: Journal of Perioperative Practice
https://www.readbyqxmd.com/read/29328795/emerging-changing-fashion-trends-and-their-impact-on-conduct-of-anaesthesia
#19
Nadeem Zaidi
One of the innate features of human behaviour is to enhance personal image in order to look different from the rest of the crowd and to satisfy a need for individualism. People use different dress codes, body makeup and artificial gadgets to improve their personal and physical appearance. The main motive behind all these efforts is personal satisfaction, to appear attractive to others and to overcome phobias and complexes.
November 2017: Journal of Perioperative Practice
https://www.readbyqxmd.com/read/29328219/quantum-limits-on-the-time-bandwidth-product-of-an-optical-resonator
#20
Mankei Tsang
A thought-provoking proposal by Tsakmakidis et al. [Science356, 1260 (2017)SCIEAS0036-807510.1126/science.aam6662] suggests that nonreciprocal optics can break a time-bandwidth limit to passive resonators. Here I quantize their resonator model and show that quantum mechanics does impose a limit, or requires extra noise to be added in the same fashion as amplified spontaneous emission in an active resonator. I also use thermodynamics to argue that extra dissipation or noise must be present in their proposed device...
January 1, 2018: Optics Letters
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