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https://www.readbyqxmd.com/read/28092836/antiviral-drug-acyclovir-exhibits-antitumor-activity-via-targeting-%C3%AE-trcp1-molecular-docking-and-dynamics-simulation-study
#1
Shagufta Shafique, Sajid Rashid
The critical role of βTrCP1 in cancer development makes it a discerning target for the development of small drug like molecules. Currently, no inhibitor exists that is able to target its substrate binding site. Through molecular docking and dynamics simulation assays, we explored the comparative binding pattern of βTrCP1-WD40 domain with ACV and its phospho-derivatives (ACVMP, ACVDP and ACVTP). Consequently, through principal component analysis, βTrCP1-ACVTP was found to be more stable complex by obscuring a reduced conformational space than other systems...
December 31, 2016: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/28068365/tonographic-effect-of-ocular-response-analyzer-in-comparison-to-goldmann-applanation-tonometry
#2
Martin Zimmermann, Susanne Pitz, Irene Schmidtmann, Norbert Pfeiffer, Joanna Wasielica-Poslednik
AIMS: The tonographic effect is a phenomenon of intraocular pressure (IOP) reduction following repeated tonometry. This study examines whether the tonographic effect occurs following IOP measurement performed with Ocular Response Analyzer (ORA). METHODS: Both eyes of 31 glaucoma patients and 35 healthy controls underwent nine IOP-measurements performed with GAT and ORA. The number of GAT and ORA measurements performed on each eye differed depending on the randomly allocated investigation scheme...
2017: PloS One
https://www.readbyqxmd.com/read/28042660/determination-of-minimum-biofilm-eradication-concentrations-of-orbifloxacin-for-canine-bacterial-uropathogens-over-different-treatment-periods
#3
Takae Shimizu, Kazuki Harada
Biofilm formation can cause refractory urinary tract infections (UTIs) in dogs; however, minimum biofilm eradication concentrations (MBECs) of veterinary drugs against canine uropathogens remain to be investigated. In this study, we determined the MBECs of orbifloxacin (OBFX), trimethoprim-sulfamethoxazole (TMS), and amoxicillin/clavulanate (ACV) over different time periods for treatment of canine uropathogenic Escherichia coli (n = 10). We also determined the MBECs of OBFX for other bacterial uropathogens, including Staphylococcus pseudintermedius (n = 5), Pseudomonas aeruginosa (n = 5), Klebsiella pneumoniae (n=5), and Proteus mirabilis (n=5)...
January 2, 2017: Microbiology and Immunology
https://www.readbyqxmd.com/read/28039754/herpes-zoster-in-autologous-hematopoietic-cell-transplant-recipients-in-the-era-of-acyclovir-or-valacyclovir-prophylaxis-and-novel-treatment-and-maintenance-therapies
#4
Farah Sahoo, Joshua Aiden Hill, Hu Xie, Wendy Leisenring, Jessica Yi, Sonia Goyal, Louise E Kimball, Ingi Lee, Sachiko Seo, Chris Davis, Stephen A Pergam, Mary E Flowers, Kai-Li Liaw, Leona Holmberg, Michael Boeckh
The epidemiology of herpes zoster (HZ) in contemporary autologous hematopoietic cell transplant (HCT) recipients, and the impact of acyclovir (ACV)/valacyclovir (VACV) prophylaxis, is not well described. In this observational study from 2002 to 2010, we retrospectively identified 1000 varicella zoster virus (VZV)-seropositive autologous HCT recipients with up to 5 years of follow-up. The incidence of HZ and use of ACV/VACV prophylaxis were determined through review of medical records and mailed questionnaires...
December 28, 2016: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28027917/profile-of-anti-herpetic-action-of-asp2151-amenamevir-as-a-helicase-primase-inhibitor
#5
Misako Yajima, Hiroshi Yamada, Masaya Takemoto, Tohru Daikoku, Yoshihiro Yoshida, Tan Long, Tomoko Okuda, Kimiyasu Shiraki
The antiherpetic drugs acyclovir (ACV, valaciclovir) and penciclovir (famciclovir) are phosphorylated by viral thymidine kinase and terminate DNA synthesis. ASP2151 (amenamevir) and foscavir (PFA) directly inhibit viral helicase-primase and DNA polymerase, respectively, and inhibit replication of herpes simplex virus (HSV) and varicella-zoster virus. ACV, ASP2151, and PFA all inhibit HSV with a different mechanism of action and as a consequence, the kinetics of viral DNA accumulation and progeny virus production differ...
December 24, 2016: Antiviral Research
https://www.readbyqxmd.com/read/28024582/evaluation-of-poly-lactic-co-glycolic-acid-and-poly-dl-lactide-co-%C3%AE%C2%B5-caprolactone-electrospun-fibers-for-the-treatment-of-hsv-2-infection
#6
Stella E Aniagyei, Lee B Sims, Danial A Malik, Kevin M Tyo, Keegan C Curry, Woihwan Kim, Daniel A Hodge, Jinghua Duan, Jill M Steinbach-Rankins
More diverse multipurpose prevention technologies are urgently needed to provide localized, topical pre-exposure prophylaxis against sexually transmitted infections (STIs). In this work, we established the foundation for a multipurpose platform, in the form of polymeric electrospun fibers (EFs), to physicochemically treat herpes simplex virus 2 (HSV-2) infection. To initiate this study, we fabricated different formulations of poly(lactic-co-glycolic acid) (PLGA) and poly(dl-lactide-co-ε-caprolactone) (PLCL) EFs that encapsulate Acyclovir (ACV), to treat HSV-2 infection in vitro...
March 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/27938955/limbus-insertion-distance-of-superior-rectus-in-primary-angle-closure-glaucoma-an-anterior-segment-oct-study
#7
Wenbin Huang, Xinbo Gao, Xinyu Zhang, Xiulan Zhang
OBJECTIVE: To compare the distance from the corneoscleral limbus to the insertion site of the superior rectus of primary angle-closure glaucoma (PACG) patients with normal controls and to identify potential characteristics associated with limbus-insertion distance. DESIGN: Cross-sectional study. PARTICIPANTS: A total of 92 subjects (eyes) were enrolled in the study: 35 were nonglaucoma controls and 57 were PACG patients. METHODS: The limbus-insertion distance of the superior rectus was measured by anterior segment optical coherence tomography (AS-OCT) and intraoperative surgical caliper...
December 2016: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/27896415/predicting-risk-factors-for-varicella-zoster-virus-infection-and-postherpetic-neuralgia-after-hematopoietic-cell-transplantation-using-ordered-logistic-regression-analysis
#8
Yuko Kanbayashi, Yosuke Matsumoto, Junya Kuroda, Tsutomu Kobayashi, Shigeo Horiike, Toyoshi Hosokawa, Masafumi Taniwaki
To identify risk factors for varicella zoster virus (VZV) infection and postherpetic neuralgia (PHN) after hematopoietic cell transplantation (HCT), we conducted a retrospective chart review of 163 consecutive patients who underwent HCT between November 2004 and July 2014. Overall, the male/female (M/F) ratio was 80/83, median age at HCT was 54 (range 15-69) years, and autologous/allogeneic HCT (auto/allo-HCT) ratio was 71/92. Forty-four patients [M/F, 25/19; median age, 57 (range: 16-68) years; auto/allo-HCT, 26/18] developed VZV infection after HCT...
November 28, 2016: Annals of Hematology
https://www.readbyqxmd.com/read/27872755/changes-in-anterior-segment-morphology-of-iris-bombe-before-and-after-laser-peripheral-iridotomy-in-patients-with-uveitic-secondary-glaucoma
#9
Wakako Ikegawa, Takashi Suzuki, Koji Namiguchi, Shiro Mizoue, Atsushi Shiraishi, Yuichi Ohashi
Purpose. To quantify changes in anterior segment (AS) parameters after laser peripheral iridotomy (LPI) using AS-optical coherence tomography (OCT) of iris bombe. Method. AS images of eight eyes were captured before and after iris bombe and more than 2 weeks after LPI (post-LPI) using AS-OCT. We compared the following AS parameters: anterior chamber depth (ACD), anterior chamber volume (ACV), iris curvature (IC), iris thickness at 500 μm from the scleral spur (IT-1) in the middle between the iris root and pupillary margin (IT-2) and 500 μm from the pupillary margin (IT-3) to the anterior chamber angle (ACA) (angle opening distance [AOD750]), and trabecular iris space area...
2016: Journal of Ophthalmology
https://www.readbyqxmd.com/read/27863558/development-of-an-autologous-canine-cancer-vaccine-system-for-resectable-malignant-tumors-in-dogs
#10
J R Yannelli, R Wouda, T J Masterson, M G Avdiushko, D A Cohen
While conventional therapies exist for canine cancer, immunotherapies need to be further explored and applied to the canine setting. We have developed an autologous cancer vaccine (K9-ACV), which is available for all dogs with resectable disease. K9-ACV was evaluated for safety and immunogenicity for a variety of cancer types in a cohort of companion dogs under veterinary care. The autologous vaccine was prepared by enzymatic digestion of solid tumor biopsies. The resultant single cell suspensions were then UV-irradiated resulting in immunogenic cell death of the tumor cells...
December 2016: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/27809833/interocular-anatomical-and-visual-functional-differences-in-pediatric-patients-with-unilateral-cataracts
#11
Erping Long, Jingjing Chen, Zhenzhen Liu, Zhuoling Lin, Qianzhong Cao, Xiayin Zhang, Xiaoyan Li, Lixia Luo, Haotian Lin, Weirong Chen, Yizhi Liu
BACKGROUND: Congenital cataracts are often complicated by anterior segment dysgenesis. This study aims to compare bilateral anterior segment parameters, macular thickness, and best-corrected visual acuity (BCVA) in pediatric cataract patients at 3 months after unilateral cataract extraction with intraocular lens implantation. METHODS: Fifty-three pediatric patients with uncomplicated unilateral total cataracts were included. At 3 months post-surgery, bilateral corneal thickness at the thinnest location (CTTL), anterior chamber depth (ACD), and anterior chamber volume (ACV) were measured using Pentacam...
November 3, 2016: BMC Ophthalmology
https://www.readbyqxmd.com/read/27802247/automated-x-ray-image-analysis-for-cargo-security-critical-review-and-future-promise
#12
Thomas W Rogers, Nicolas Jaccard, Edward J Morton, Lewis D Griffin
We review the relatively immature field of automated image analysis for X-ray cargo imagery. There is increasing demand for automated analysis methods that can assist in the inspection and selection of containers, due to the ever-growing volumes of traded cargo and the increasing concerns that customs- and security-related threats are being smuggled across borders by organised crime and terrorist networks. We split the field into the classical pipeline of image preprocessing and image understanding. Preprocessing includes: image manipulation; quality improvement; Threat Image Projection (TIP); and material discrimination and segmentation...
October 6, 2016: Journal of X-ray Science and Technology
https://www.readbyqxmd.com/read/27795855/assessment-of-anterior-segment-measurements-with-swept-source-optical-coherence-tomography-before-and-after-ab-interno-trabeculotomy-trabectome-surgery
#13
Handan Akil, Ping Huang, Vikas Chopra, Brian Francis
Purpose. To compare the changes of anterior segment parameters, assessed by swept source anterior segment optical coherence tomography (AS-OCT) after combined Trabectome-cataract surgery and Trabectome-only surgery in open angle glaucoma patients. Methods. Thirty-eight eyes of 24 patients with open angle glaucoma were scanned with swept source AS-OCT before and 4 weeks after combined Trabectome-cataract or Trabectome-only surgery. Intraocular pressure, number of medications, and AS-OCT parameters, such as angle opening distance at 500 and 750 μm from the scleral spur (AOD500 and AOD750), trabecular-iris space area at 500 and 750 mm(2) (TISA500, TISA750), angle recess area at 500 and 750 mm(2) (ARA500, ARA750), trabecular iris angle (TIA), anterior chamber depth (ACD), anterior chamber width (ACW), and anterior chamber volume (ACV), were obtained before the surgery...
2016: Journal of Ophthalmology
https://www.readbyqxmd.com/read/27793835/biochemical-pathways-supporting-beta-lactam-biosynthesis-in-the-springtail-folsomia-candida
#14
Wouter Suring, Janine Mariën, Rhody Broekman, Nico M van Straalen, Dick Roelofs
Recently, an active set of beta-lactam biosynthesis genes was reported in the genome of the arthropod springtail Folsomia candida (Collembola). Evidence was provided that these genes were acquired through horizontal gene transfer. However, successful integration of fungal- or bacterial-derived beta-lactam biosynthesis into the metabolism of an animal requires the beta-lactam precursor L-α-aminoadipic acid and a phosphopantetheinyl transferase for activation of the first enzyme of the pathway, δ-(L-α-aminoadipoyl)-L-cysteinyl-D-valine synthetase (ACVS)...
December 15, 2016: Biology Open
https://www.readbyqxmd.com/read/27789562/blunted-cyclic-variation-of-heart-rate-predicts-mortality-risk-in-post-myocardial-infarction-end-stage-renal-disease-and-chronic-heart-failure-patients
#15
Junichiro Hayano, Fumihiko Yasuma, Eiichi Watanabe, Robert M Carney, Phyllis K Stein, James A Blumenthal, Petros Arsenos, Konstantinos A Gatzoulis, Hiroshi Takahashi, Hideki Ishii, Ken Kiyono, Yoshiharu Yamamoto, Yutaka Yoshida, Emi Yuda, Itsuo Kodama
AIMS: Cyclic variation of heart rate (CVHR) associated with sleep-disordered breathing is thought to reflect cardiac autonomic responses to apnoeic/hypoxic stress. We examined whether blunted CVHR observed in ambulatory ECG could predict the mortality risk. METHODS AND RESULTS: CVHR in night-time Holter ECG was detected by an automated algorithm, and the prognostic relationships of the frequency (FCV) and amplitude (ACV) of CVHR were examined in 717 patients after myocardial infarction (post-MI 1, 6% mortality, median follow-up 25 months)...
October 26, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/27769382/development-validation-and-application-of-a-96-well-enzymatic-assay-based-on-lc-esi-ms-ms-quantification-for-the-screening-of-selective-inhibitors-against-mycobacterium-tuberculosis-purine-nucleoside-phosphorylase
#16
Giulia Cattaneo, Daniela Ubiali, Enrica Calleri, Marco Rabuffetti, Georg C Höfner, Klaus T Wanner, Marcela C De Moraes, Leonardo K B Martinelli, Diógenes Santiago Santos, Giovanna Speranza, Gabriella Massolini
Mycobacterium tuberculosis (Mtb) purine nucleoside phosphorylase (PNP, EC 2.4.2.1) has been identified as a target for the development of specific inhibitors with potential antimycobacterial activity. We hereby described the development and validation of a new 96-well LC-ESI-MS/MS method to assess the inhibition activity of nucleoside analogues towards MtbPNP and the human PNP (HsPNP). Enzyme activity was determined by monitoring the phosphorolysis of inosine (Ino) to hypoxanthine (Hpx). The enzymatic assay (v = 0...
November 2, 2016: Analytica Chimica Acta
https://www.readbyqxmd.com/read/27766439/%C3%AE-l-%C3%AE-aminoadipyl-l-cysteinyl-d-valine-synthetase-acvs-discovery-and-perspectives
#17
Kapil Tahlan, Marcus A Moore, Susan E Jensen
The δ-(L-α-aminoadipyl)-L-cysteinyl-D-valine (ACV) tripeptide is the first dedicated intermediate in the biosynthetic pathway leading to the penicillin and cephalosporin classes of β-lactam natural products in bacteria and fungi. It is synthesized nonribosomally by the ACV synthetase (ACVS) enzyme, which has been purified and partially characterized from many sources. Due to its large size and instability, many details regarding the reaction mechanism of ACVS are still not fully understood. In this review we discuss the chronology and associated methodology that led to the discovery of ACVS, some of the main findings regarding its activities, and some recent/current studies being conducted on the enzyme...
October 20, 2016: Journal of Industrial Microbiology & Biotechnology
https://www.readbyqxmd.com/read/27752614/clinical-outcomes-of-adverse-cardiovascular-events-in-patients-with-acute-dapsone-poisoning
#18
Kyung Sik Kang, Hyung Il Kim, Oh Hyun Kim, Kyoung Chul Cha, Hyun Kim, Kang Hyun Lee, Sung Oh Hwang, Yong Sung Cha
OBJECTIVE: Adverse cardiovascular events (ACVEs) account for a large proportion of the morbidities and mortalities associated with drug overdose emergencies. However, there are no published reports regarding outcomes of ACVEs associated with acute dapsone poisoning. Here, the authors retrospectively analyzed ACVEs reported within 48 hours of treatment in patients with acute dapsone poisoning and assessed the significance of ACVEs as early predictors of mortality. METHODS: Sixty-one consecutive cases of acute dapsone poisoning that were diagnosed and treated at a regional emergency center between 2006 and 2014 were included in the study...
March 2016: Clin Exp Emerg Med
https://www.readbyqxmd.com/read/27729603/-internal-carotid-artery-stenosis-associated-with-hyoid-bone-can-hyoid-bone-be-a-risk-factor-for-acute-cerebrovascular-syndrome
#19
Ichiro Kawahara, Keisuke Ozono, Takashi Fujimoto, Makoto Hirose
Eagle syndrome is a well-known disease caused by elongation of the styloid process and/or calcification of the stylohyoid ligament, which interferes with adjacent anatomical structures, giving rise to acute cerebrovascular syndrome(ACVS)and/or pain. Although hyoid bone is also a stylohyoid complex, its association with ACVS is not well known. Thus, we investigated the anatomical relationship between the internal carotid artery(ICA)and the hyoid bone. Between January 2014 and December 2015, three-dimensional computed tomographic angiography(3D-CTA)of the neck was performed for 218 patients...
October 2016: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/27727395/biometric-factors-associated-with-acute-primary-angle-closure-comparison-of-the-affected-and-fellow-eye
#20
Eray Atalay, Monisha E Nongpiur, Mani Baskaran, Sourabh Sharma, Shamira A Perera, Tin Aung
Purpose: To compare ocular biometric and anterior segment parameters between the affected and fellow eye in subjects with acute primary angle closure (APAC). Methods: We evaluated 76 subjects with unilateral APAC who had undergone bilateral laser peripheral iridotomy before enrollment. Imaging was done using anterior segment optical coherence tomography and a customized software was used to measure the following: angle opening distance (AOD750); trabecular-iris space area (TISA750); iris thickness (IT750); iris curvature (ICURV); iris area (IAREA); anterior chamber depth; area and volume (ACD; ACA and ACV); anterior chamber width (ACW); anterior vault (ACD+LV); lens vault (LV); and pupil diameter (PD)...
October 1, 2016: Investigative Ophthalmology & Visual Science
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