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https://www.readbyqxmd.com/read/28106892/theoretical-study-on-the-need-for-laser-iridotomy-in-an-implantable-collamer-lens-with-a-hole-using-computational-fluid-dynamics
#1
T Kawamorita, K Shimizu, N Shoji
PurposeAlthough one of the advantages of the Hole-ICL implantation is that laser iridotomy (LI) is unnecessary, the evidence have not been reported from the viewpoint of aqueous humor circulation. We investigated the effect of laser iridotomy (LI) on the fluid dynamics of aqueous humor in an implantable collamer lens (ICL) with a central hole, that is, a Hole-ICL using computational fluid dynamics.MethodsA fluid dynamics simulation was performed using the thermal-hydraulic analysis software FloEFD (Mentor Graphics Corp...
January 20, 2017: Eye
https://www.readbyqxmd.com/read/28104335/soil-water-and-nutrient-losses-from-management-alternatives-for-degraded-pasture-in-brazilian-atlantic-rainforest-biome
#2
Paulo Roberto da Rocha Junior, Felipe Vaz Andrade, Eduardo de Sá Mendonça, Guilherme Kangussú Donagemma, Raphael Bragança Alves Fernandes, Rabin Bhattharai, Prasanta Kumar Kalita
The objective of this study was to evaluate sediment, water and nutrient losses from different pasture managements in the Atlantic Rainforest biome. A field study was carried out in Alegre Espiríto Santo, Brazil, on a Xanthic Ferralsol cultivated with braquiaria (Brachiaria brizantha). The six pasture managements studied were: control (CON), chisel (CHI), fertilizer (FER), burned (BUR), plowing and harrowing (PH), and integrated crop-livestock (iCL). Runoff and sediment samples were collected and analyzed for calcium (Ca), magnesium (Mg), potassium (K), phosphorus (P) and organic carbon contents...
January 16, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28096654/comparison-of-visian-toric-collamer-lens-and-toric-acrylic-intraocular-lens-implantation-for-the-treatment-of-myopia-with-astigmatism
#3
Hatem Ammar, Mohamed Anbar, Marwa M Abdellah
PURPOSE: To compare the efficacy and outcome of phakic toric implantable collamer lens (TICL) and refractive clear lens extraction with AcrySof Toric intraocular lens (TIOL) implantation for the treatment of myopic astigmatism. PATIENTS AND METHODS: This study assessed eyes with myopic astigmatism >-1 D and ≤-4 D with a spherical equivalent >10 D or <10 D if the patients were unsuitable for corneal refractive surgery. These eyes were divided into group A, in which Visian Toric ICL™ Phakic TICL was implanted, and group B, which involved clear lens extraction with implantation of an AcrySof IQ toric SN60T3-9™ IOL...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28094979/photo-induced-cross-linking-of-short-furan-modified-dna-on-surfaces
#4
Cinthya Yamila Véliz Montes, Henry Memczak, Ellen Gyssels, Tomas Torres, Annemieke Madder, Rudolf J Schneider
We report for the first time the formation of site-specifically interstrand cross-linked (ICL) surface-immobilized furan-modified DNA duplexes via singlet oxygen. 1O2, necessary for effecting furan-mediated ICL formation, was produced in situ using methylene blue or a zinc phthalocyanine derivative (TT1) as photosensitizers. Via surface plasmon resonance spectroscopy we show that surface ICL was achieved and established a robust link which enhances the stability of the 12-mer duplex even after surface regeneration...
January 17, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28075014/knockdown-of-rev3-synergizes-with-atr-inhibition-to-promote-apoptosis-induced-by-cisplatin-in-lung-cancer-cells
#5
He-Guo Jiang, Ping Chen, Jin-Yu Su, Ming Wu, Hai Qian, Yi Wang, Jian Li
It has been demonstrated that REV3, the catalytic subunit of the translesion synthesis (TLS) polymerase ζ, play an important role in DNA damage response (DDR) induced by cisplatin, and Ataxia telangietasia mutated and Rad-3-related (ATR) knase is a central player in activating cell cycle checkpoint, stabilizing replication forks, regulating DDR, and promoting repair of DNA damage caused by cisplatin. Cancer cells deficient in either one of REV3 and ATR are more sensitive to cisplatin. However, whether co-inhibition of REV3 and ATR can further increase sensitivity of non-small cell lung cancer (NSCLC) cells to cisplatin is not clear...
January 11, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28070268/a-systematic-review-of-thrust-manipulation-for-non-surgical-shoulder-conditions
#6
REVIEW
Amy L Minkalis, Robert D Vining, Cynthia R Long, Cheryl Hawk, Katie de Luca
PURPOSE: Although many conservative management options are available for patients with non-surgical shoulder conditions, there is little evidence of their effectiveness. This review investigated one manual therapy approach, thrust manipulation, as a treatment option. METHODS: A systematic search was conducted of the electronic databases from inception to March 2016: PubMed, PEDro, ICL, CINAHL, and AMED. Two independent reviewers conducted the screening process to determine article eligibility...
2017: Chiropractic & Manual Therapies
https://www.readbyqxmd.com/read/28024295/characterization-of-two-novel-fancg-mutations-in-indian-fanconi-anemia-patients
#7
Avani Solanki, C Kumar Selvaa, Frenny Sheth, Nita Radhakrishnan, Manas Kalra, Babu Rao Vundinti
FA is a rare recessive genetic disorder with autosomal or X-linked mode of inheritance and is associated with 19 different FA complementation groups. We have studied three patients clinically diagnosed as FA. All three patients showed a high frequency chromosomal breakage in MMC induced blood cultures and FANCD2 non-monoubiquitination by western blotting. The molecular analysis using direct sequencing revealed two novel mutations in FANCG; 2 novel mutations c.1143+5G>C and c.883dupG, and a reported mutation c...
November 29, 2016: Leukemia Research
https://www.readbyqxmd.com/read/28003981/phakic-posterior-chamber-intraocular-lens-for-unilateral-high-myopic-amblyopia-in-chinese-pediatric-patients
#8
Jing Zhang, Jin-Rong Li, Zi-Dong Chen, Min-Bin Yu, Ke-Ming Yu
AIM: To assess the outcomes of posterior chamber implantable collamer lens (ICL) implantation in Chinese pediatric patients with unilateral high myopic amblyopia. METHODS: Eleven eyes of 11 amblyopic patients aged 11.02±3.34y underwent ICL (model V4, Staar Surgical Inc.) implantation to treat unilateral anisometropia were studied. Visual acuity, cycloplegic refraction, contrast sensitivity, stereopsis, intraocular pressure (IOP), vaulting, corneal endothelial cell count and complications were evaluated...
2016: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28003367/attenuation-of-phosphorylation-dependent-activation-of-cystic-fibrosis-transmembrane-conductance-regulator-cftr-by-disease-causing-mutations-at-the-transmission-interface
#9
Stephanie Chin, Donghe Yang, Andrew J Miles, Paul D W Eckford, Steven V Molinski, B A Wallace, Christine E Bear
Cystic fibrosis transmembrane conductance regulator (CFTR) is a multi-domain membrane protein that functions as a phosphorylation regulated anion channel. The interface between its two cytosolic nucleotide binding domains (NBDs) and coupling helices (CHs) conferred by intracellular loops (ICLs) extending from the channel pore domains has been referred to as a transmission interface and is thought to be critical for the regulated channel activity of CFTR. Phosphorylation of the regulatory (R) domain of CFTR by PKA is required for its channel activity...
December 21, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28000588/active-tuberculosis-patients-have-high-levels-of-iga-anti-alpha-crystallin-and-isocitrate-lyase-proteins
#10
M Talavera-Paulín, L García-Morales, B P Ruíz-Sánchez, Á D Caamal-Ley, A Hernández-Solis, E Ramírez-Casanova, R Cicero-Sabido, C Espitia, C Helguera-Repetto, J A González-Y-Merchand, R Flores-Mejía, S Estrada-Parra, I Estrada-García, R Chacón-Salinas, I Wong-Baeza, J Serafín-López
SETTING: Mexico City, Mexico. OBJECTIVE: To identify proteins synthetised by Mycobacterium tuberculosis in hypoxic culture, which resemble more closely a granuloma environment than aerobic culture, and to determine if they are recognised by antibodies from patients with active pulmonary tuberculosis (PTB). DESIGN: Soluble extracts from M. tuberculosis H37Rv cultured under aerobic or hypoxic conditions were analysed using two-dimensional polyacrylamide gel electrophoresis, and proteins over-expressed under hypoxia were identified by mass spectrometry...
December 1, 2016: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/27994391/causes-of-phakic-implantable-collamer-lens-explantation-exchange-at-king-khaled-eye-specialist-hospital
#11
Nasser A AlSabaani, Ashley Behrens, Sabah Jastanieah, Salem Al Malki, Mohanna Al Jindan, Saeed Al Motowa
PURPOSE: The purpose of this study is to evaluate the causes of phakic implantable collamer lens (ICL) explantation/exchange at an eye hospital in Saudi Arabia. MATERIALS AND METHODS: A retrospective chart review was performed for patients who underwent ICL implantation from 2007 to March 2014 and data were collected on cases that underwent ICL explantation. RESULTS: Of the 787 ICL implants, 30 implants (3.8% [95% confidence interval 2.6%; 5...
October 2016: Middle East African Journal of Ophthalmology
https://www.readbyqxmd.com/read/27986856/interstrand-cross-linking-implies-contrasting-structural-consequences-for-dna-insights-from-molecular-dynamics
#12
Emmanuelle Bignon, Tomáš Dršata, Christophe Morell, Filip Lankaš, Elise Dumont
Oxidatively-generated interstrand cross-links rank among the most deleterious DNA lesions. They originate from abasic sites, whose aldehyde group can form a covalent adduct after condensation with the exocyclic amino group of purines, sometimes with remarkably high yields. We use explicit solvent molecular dynamics simulations to unravel the structures and mechanical properties of two DNA sequences containing an interstrand cross-link. Our simulations palliate the absence of experimental structural and stiffness information for such DNA lesions and provide an unprecedented insight into the DNA embedding of lesions that represent a major challenge for DNA replication, transcription and gene regulation by preventing strand separation...
December 15, 2016: Nucleic Acids Research
https://www.readbyqxmd.com/read/27978798/combination-platinum-based-and-dna-damage-response-targeting-cancer-therapy-evolution-and-future-directions
#13
Spyridon P Basourakos, Likun Li, Ana M Aparicio, Paul G Corn, Jeri Kim, Timothy C Thompson
Maintenance of genomic stability is a critical determinant of cell survival and is necessary for growth and progression of malignant cells. Alkylating factors, i.e., interstrand crosslinking (ICL) agents, including platinum-based agents, are first-line chemotherapy treatment for many solid human cancers. In malignant cells, ICL triggers the DNA damage response (DDR) including DNA repair, and mainly involves the nucleotide excision repair (NER) pathway. When the damage burden is high and lesions cannot be repaired, malignant cells are unable to divide and ultimately undergo cell death either through mitotic catastrophe or apoptosis...
December 14, 2016: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/27965890/effects-of-v4c-icl-implantation-on-myopic-patients-vision-related-daily-activities
#14
Taixiang Liu, Shaorong Linghu, Le Pan, Rong Shi
The new type implantable Collamer lens with a central hole (V4c-ICL) is widely used to treat myopia. However, halos occur in some patients after surgery. The aim is to evaluate the effect of V4c-ICL implantation on vision-related daily activities. This retrospective study included 42 patients. Uncorrected visual acuity (UCVA), best corrected visual acuity (BCVA), intraocular pressure (IOP), endothelial cell density (ECD), and vault were recorded and vision-related daily activities were evaluated at 3 months after operation...
2016: Journal of Ophthalmology
https://www.readbyqxmd.com/read/27939561/phakic-intraocular-collamer-lens-visian-icl-implantation-for-correction-of-myopia-in-spectacle-aversive-special-needs-children
#15
Lawrence Tychsen, Nicholas Faron, James Hoekel
PURPOSE: A subset of children with high anisometropia or isoametropia and neurobehavioral disorders have chronic difficulties with spectacle or contact lens wear. We report the results of refractive surgery in a series of these children treated using bilateral or unilateral intraocular collamer lens (Visian ICL) implantation for moderate to high myopia. DESIGN: Prospective non-randomized cohort study. METHODS: Clinical course and outcome data were collated prospectively for 40 implanted eyes in 23 children (mean age 10...
December 6, 2016: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/27936594/icl-based-of-ceas-a-sensitive-tool-for-analytical-chemistry
#16
Katherine M Manfred, Katharine M Hunter, Luca Ciaffoni, Grant A D Ritchie
Optical-feedback cavity-enhanced absorption spectroscopy (OF-CEAS) using mid-infrared interband cascade lasers (ICLs) is a sensitive technique for trace gas sensing. The setup of a V-shaped optical cavity operating with a 3.29 μm cw ICL is detailed, and a quantitative characterization of the injection efficiency, locking stability, mode matching, and detection sensitivity is presented. The experimental data are supported by a model to show how optical feedback affects the laser frequency as it is scanned across several longitudinal modes of the optical cavity...
December 12, 2016: Analytical Chemistry
https://www.readbyqxmd.com/read/27931306/idiopathic-cd4-lymphocytopenia
#17
Joel P Brooks, Gisoo Ghaffari
BACKGROUND: Idiopathic CD4 lymphocytopenia (ICL) is a rare disorder of unknown etiology. Diagnostic criteria include a persistent CD4 T-cell lymphopenia with no underlying primary or secondary immune deficiencies and a CD4 T-cell count of 300 cells/mL or 20% total lymphocyte on multiple occasions. OBJECTIVE: To increase awareness of ICL and to provide a review of the clinical characteristics, diagnosis, and management of this disease process. Presently, many of these patients receive prophylactic treatment similar to other T-cell deficient conditions, most notably patients with human immunodeficiency virus (HIV) or acquired immunodeficiency syndrome; however, the same indications may not necessarily apply to this patient population because the T cells are not affected by a virus as in HIV...
November 2016: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/27930796/surgical-correction-of-presbyopic-ametropia-with-non-refractive-transparent-corneal-inlay-and-an-implantable-collamer-lens
#18
Carlos Gutierrez Amoros
PURPOSE: To report the clinical outcomes of two patients implanted with the Raindrop Near Vision Inlay (ReVision Optics, Inc., Lake Forest, CA) to correct for presbyopia and the Visian implantable collamer lens (ICL) (STAAR Surgical, Monrovia, CA) to correct refractive error. METHODS: Case report. RESULTS: Two patients with presbyopic ametropia complained of blurred vision for distance and near. Both patients received a corneal inlay in the non-dominant eye followed by the Raindrop Inlay the following day...
December 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27911399/tools-to-study-the-role-of-architectural-protein-hmgb1-in-the-processing-of-helix-distorting-site-specific-dna-interstrand-crosslinks
#19
Anirban Mukherjee, Karen M Vasquez
High mobility group box 1 (HMGB1) protein is a non-histone architectural protein that is involved in regulating many important functions in the genome, such as transcription, DNA replication, and DNA repair. HMGB1 binds to structurally distorted DNA with higher affinity than to canonical B-DNA. For example, we found that HMGB1 binds to DNA interstrand crosslinks (ICLs), which covalently link the two strands of the DNA, cause distortion of the helix, and if left unrepaired can cause cell death. Due to their cytotoxic potential, several ICL-inducing agents are currently used as chemotherapeutic agents in the clinic...
November 10, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27900095/intravenous-leiomyomatosis-with-right-atrium-extension-in-two-patients-a-case-report
#20
Lianxue Zhang, Yang Duan, Fulin Song, Junrui Xiao, Benqiang Yang
Intravenous leiomyomatosis (IVL) is a rare benign tumor of the uterus mesoderm, which can spread via the vein, from the micro-vein to the inferior vena cava, and even to the right atrium. IVL was first described this disease in 1896 and the first presented case of IVL with right atrium extension in the autopsy was described in 1907. On rare occasions, the tumors may extend into the regional and systemic veins, thus reaching the heart. This may subsequently cause intracardiac leiomyomatosis (ICL), which may lead to congestive heart failure and on occasion, sudden fatalities...
November 2016: Molecular and Clinical Oncology
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