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https://www.readbyqxmd.com/read/29232758/-time-course-of-changes-in-visual-acuity-after-a-single-injection-of-aflibercept-or-ranibizumab-in-neovascular-age-related-macular-degeneration-analysis-of-aggregated-real-life-data
#1
Robert G H Wilke, Robert Patrick Finger, Helmut G Sachs
Background Treatment of neovascular age-related macular degeneration (nvAMD) under real life conditions may differ from controlled prospective trials with respect to the number of injections and long term preservation of visual acuity. In many instances, intervals for controls and re-injection cannot be maintained as frequently as required. This case series examines actual intervals for control and re-injection visits, in order to estimate how prolonged intervals have an impact on momentary visual acuity and how long term visual outcome is affected...
December 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/29232757/-real-life-data-on-the-treatment-of-diabetic-macular-oedema-in-germany
#2
Robert G H Wilke, Robert Patrick Finger, Helmut G Sachs
Background Controlled prospective clinical trials on the treatment of diabetic macular oedema (DME) using anti-VEGF compounds show very good results in visual acuity gain over several years. To date, only limited data are available from comparable studies under real-life settings in clinical routine. However, real-life data from other indications for anti-VEGF treatment suggest that, in clinical routine, gain in visual acuity is less pronounced and cannot be maintained over a longer period of time, which is related to the significantly lower number of injections administered in clinical routine...
December 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/29232756/-the-conundrum-of-relationships-in-the-multivariate-dataset-of-nvamd-treatment
#3
Robert G H Wilke, Robert Patrick Finger, Helmut G Sachs
Background The evaluation of relationships in clinical case series is complicated by statistical pitfalls, one of which is spurious correlation. In this case, one or more potential factors are actually not related to a target measure, yet it may be wrongly inferred that they are. This may be due to either coincidence or the presence of a one or more confounding unregarded factors. In randomised clinical trials, it is attempted to eliminate such confounding factors or to control them by randomisation. However, this approach is not applicable in retrospective case series, and other statistical methods must be applied, such as multivariate analyses, taking into account all known variables...
December 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/29232752/simultaneous-determination-of-rosuvastatin-rosuvastatin-5%C3%A2-s-lactone-and-n-desmethyl-rosuvastatin-in-human-plasma-by-uplc-ms-ms-and-its-application-to-clinical-study
#4
Xue Bai, Xi-Pei Wang, Guo-Dong He, Bin Zhang, Min Huang, Jia-Li Li, Shi-Long Zhong
Objective A rapid and sensitive ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) assay was developed and validated for the simultaneous quantification of rosuvastatin (RST), rosuvastatin-5 S-lactone (RSTL), and N-desmethyl rosuvastatin (DM-RST) in human plasma. Methods Sample was prepared by liquid-liquid extraction with ethyl acetate from 100 μL acidulated buffered plasma. Then analytes were chromatographically separated using an Acquity UPLC HSS T3 column (3.0 mm×100 mm, 1...
December 12, 2017: Drug Research
https://www.readbyqxmd.com/read/29232748/-combined-posteromedial-and-anterolateral-approach-in-the-floating-position-two-column-fracture-of-the-tibia-head
#5
Maike Reul, Harm Hoekstra
Background The posterior tibial plateau is often affected in intra-articular tibial fractures. Moreover, treating these posterior fractures is recognised as an important prognostic factor. Open reduction and internal fixation of lateral and posterior two column tibial plateau fractures can be achieved via a combined reversed L-shape approach and an anterolateral approach in the floating position without intraoperative repositioning of the patient. Material and Methods The operative procedure starts in the posterior position with visualisation of the posterior column after lateral retraction of the medial head of the M...
December 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/29232726/-subtalare-screw-arthroereisis-for-the-treatment-of-symptomatic-flexible-pes-planovalgus
#6
Dariusch Arbab, Daniel Frank, Bertil Bouillon, Christian Lüring, Carsten Wingenfeld, Mona Abbara-Czardybon
Background The purpose of this study was to determine the functional outcomes and radiographic results of the talus-stop screw method as minimally invasive subtalar arthroereisis in pediatric and juvenile flexible flatfoot. Material and Methods We retrospectively evaluated 73 feet from 41 children using the talus stop-screw method, for the period between 2002 and 2011. The age at time of surgery ranged between nine and 14 years. The radiological assessment included measuring the calcaneal pitch, talar declination, talo-first metatarsal angle (Meary) and calcaneal-first metatarsal angle (Costa-Bartani) in the lateral view...
December 12, 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/29232725/value-of-contrast-enhanced-ultrasound-quantification-criteria-for-identifying-patients-not-responding-to-bevacizumab-based-therapy-for-colorectal-liver-metastases
#7
François Tranquart, Paul-Armand Dujardin, Olivier Bouché, Claude Marcus, Christophe Borg, Philippe Manzoni, Jean-Yves Douillard, Catherine Labbe-Devilliers, Eric Terrebonne, Denis Smith, Herve Trillaud, Olivier Capitain, Cristophe Aubé, Jean-Philippe Spano, Olivier Lucidarme, Aurélie Ferru, Jean-Pierre Tasu, Sylvain Manfredi, Aurore Bleuzen, Julie Léger, Thierry Lecomte
Purpose To evaluate changes in tumor vascularization parameters based on contrast-enhanced ultrasound (CEUS) quantification criteria of at least one visible liver metastasis as an early predictor of non-response to chemotherapy, including bevacizumab for colorectal cancer (CRC) liver metastases. Materials and Methods This multicenter prospective study included patients who received first-line bevacizumab-based chemotherapy. Tumor enhancement measured using CEUS within one liver metastasis and in relation to the surrounding healthy liver was quantified within 8 days before the first infusion of bevacizumab (E0), 24 hours after the end of the first infusion of bevacizumab (E1), in the 24 hours before the 2nd and 3 rd infusion of bevacizumab on day 15 (E2) and day 30 (E3), respectively, and after 2 months of treatment (E4)...
December 12, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/29232724/inter-rater-reliability-of-air-saline-hycosy-hyfosy-and-hyfosy-combined-with-power-doppler-for-screening-tubal-patency
#8
Inga Ludwin, Artur Ludwin, Carolina O Nastri, Marcela A Coelho Neto, Jan Kottner, Wellington P Martins
Purpose To estimate the inter-observer reliability and agreement of offline analyses of three different ultrasound techniques for assessing tubal patency. Methods 100 tubes (n = 100) in 50 women were evaluated for tubal patency between November 2013 and July 2015 using ultrasound as index tests and laparoscopy as the reference standard. Three different ultrasound techniques were applied: two-dimensional grayscale ultrasound using air + saline as the contrast media (2D-HyCoSy); two- and three-dimensional grayscale ultrasound using foam as the contrast media (2 D/3D-HyFoSy); and the same technique but adding bi-directional power Doppler (2 D/3D-Doppler-HyFoSy)...
December 12, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/29232723/biopsy-of-liver-target-lesions-under-contrast-enhanced-ultrasound-guidance-a-multi-center-study
#9
Giampiero Francica, Maria Franca Meloni, Ilario de Sio, Fulvia Terracciano, Eugenio Caturelli, Laura Riccardi, Paola Roselli, Maddalena Diana Iadevaia, Mariano Scaglione, Giovanni Lenna, Jason Chiang, Maurizio Pompili
Purpose To retrospectively characterize the prevalence and impact of contrast-enhanced ultrasound (CEUS) as a guidance technique for the biopsy of liver target lesions (LTLs) at six interventional ultrasound centers. Materials and Methods The six participating centers retrospectively selected all patients in whom biopsy needles were positioned in LTLs during CEUS. The prevalence of CEUS-guided biopsies at each center between 2005 and 2016, contrast agent consumption, procedure indications, diagnostic yield and complications were assessed...
December 12, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/29232702/adipose-tissue-deficiency-of-hormone-sensitive-lipase-causes-fatty-liver-in-mice
#10
Bo Xia, Guo He Cai, Hao Yang, Shu Pei Wang, Grant A Mitchell, Jiang Wei Wu
Fatty liver is a major health problem worldwide. People with hereditary deficiency of hormone-sensitive lipase (HSL) are reported to develop fatty liver. In this study, systemic and tissue-specific HSL-deficient mice were used as models to explore the underlying mechanism of this association. We found that systemic HSL deficient mice developed fatty liver in an age-dependent fashion between 3 and 8 months of age. To further explore the mechanism of fatty liver in HSL deficiency, liver-specific HSL knockout mice were created...
December 12, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/29232698/low-energy-extracorporeal-shockwave-therapy-eswt-improves-metaphyseal-fracture-healing-in-an-osteoporotic-rat-model
#11
Gina A Mackert, Matthias Schulte, Christoph Hirche, Dimitra Kotsougiani, Julian Vogelpohl, Bernd Hoener, Teresa Fiebig, Stefanie Kirschner, Marc A Brockmann, Marcus Lehnhardt, Ulrich Kneser, Leila Harhaus
PURPOSE: As result of the current demographic changes, osteoporosis and osteoporotic fractures are becoming an increasing social and economic burden. In this experimental study, extracorporeal shock wave therapy (ESWT), was evaluated as a treatment option for the improvement of osteoporotic fracture healing. METHODS: A well-established fracture model in the metaphyseal tibia in the osteoporotic rat was used. 132 animals were divided into 11 groups, with 12 animals each, consisting of one sham-operated group and 10 ovariectomized (osteoporotic) groups, of which 9 received ESWT treatment...
2017: PloS One
https://www.readbyqxmd.com/read/29232677/presence-of-initial-caries-lesions-as-a-risk-factor-for-caries-in-preschool-children-a-cohort-study
#12
Renata S Guedes, Chaiana Piovesan, Thiago M Ardenghi, Bruno Emmanuelli, Mariana M Braga, Fausto M Mendes
The aim of this study was to evaluate the influence of initial noncavitated caries lesions on cavitated caries increment in preschool children. A 2-year cohort study was designed to include the participants of a survey on dental caries performed in 2010. Preschool children (12-59 months old) were examined for dental caries and classified as children with no caries lesions, with only initial lesions, with at least 1 moderate caries lesion, and with extensive lesions. Socioeconomic data were also collected. After 2 years, 466 children were re-examined (follow-up rate of 72...
December 13, 2017: Caries Research
https://www.readbyqxmd.com/read/29232602/cooperative-protein-unfolding-a-statistical-mechanical-model-for-the-action-of-denaturants
#13
J Seelig
Knowledge of protein stability is of utmost importance in various fields of biotechnology. Protein stability can be assessed in solution by increasing the concentration of denaturant and recording the structural changes with spectroscopic or thermodynamic methods. The standard interpretation of the experimental data is to assume a 2-state equilibrium between completely folded and completely unfolded protein molecules. Here we propose a cooperative model based on the statistical-mechanical Zimm-Bragg theory...
December 5, 2017: Biophysical Chemistry
https://www.readbyqxmd.com/read/29232573/radioprotective-effects-of-silymarin-on-the-sperm-parameters-of-nmri-mice-irradiated-with-%C3%AE-rays
#14
Daryoush Fatehi, Mohsen Mohammadi, Babak Shekarchi, Arash Shabani, Mohammad Seify, Ayoob Rostamzadeh
Free radicals and reactive oxygen species (ROS) are generated using various endogenous systems or from external sources such as exposure to different physiochemicals. Ionizing radiation damage to the cell can be caused by the direct or indirect effects of radiotherapy processes. Silymarin (SM), a flavanolignan compound, has been identified as a natural potent antioxidant with cytoprotection activities due to scavenging free radicals. The aim of the present study was to evaluate the radioprotective effect of SM on sperm parameters of mice induced by γ-rays...
December 6, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/29232562/tm6sf2-a-novel-target-for-plasma-lipid-regulation
#15
REVIEW
Ting-Ting Li, Tao-Hua Li, Juan Peng, Bei He, Lu-Shan Liu, Dang-Heng Wei, Zhi-Sheng Jiang, Xi-Long Zheng, Zhi-Han Tang
Transmembrane 6 superfamily 2 (TM6SF2), a gene identified at the locus 19p12, has been recognized to regulate plasma lipids. Here, we provide an overview of the roles of TM6SF2 as a novel target for plasma lipid regulation. We first review the association of TM6SF2 variant with plasma lipid traits, cardiovascular disease (CVD) and non-alcoholic fatty liver disease (NAFLD). Then, we present an overview about the in vivo validation of TM6SF2 as a regulator of plasma lipid levels using mice, with overexpression or knockdown/knockout of TM6SF2...
December 1, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29232497/evaluation-of-olfaction-and-taste-function-in-type-2-diabetic-patients-with-and-without-peripheral-neuropathy
#16
Semih Yazla, Süay Özmen, Sinem Kıyıcı, Demet Yıldız, Mehmet Haksever, Sündüz Gencay
AIMS: Olfaction and gustation in patients with diabetes mellitus (DM) have great significance on quality of life and their impairment may result in possible hazards. A limited number of studies have been performed to determine the alteration of both gustatory and olfactory function in type 2 diabetic patients with diabetic peripheral neuropathy (DPN). The aim of this study was to determine whether type 2 diabetic patients, with and without DPN, exhibit major olfactory and gustatory dysfunction using validated and dependable techniques...
December 12, 2017: Diabetes/metabolism Research and Reviews
https://www.readbyqxmd.com/read/29232474/is-intraperitoneal-chemotherapy-still-an-acceptable-option-in-primary-adjuvant-chemotherapy-for-advanced-ovarian-cancer
#17
B J Monk, J K Chan
The role of intraperitoneal (i.p.) chemotherapy in treating newly diagnosed advanced epithelial ovarian cancer (EOC) has been the subject of controversy for almost three decades. Three large intergroup phase III trials (GOG 104, 114, 172) have demonstrated a survival benefit associated with i.p. over intravenous (i.v.) therapy in advanced, low-volume EOC. Despite the positive clinical trial results and a subsequent National Cancer Institute alert in 2006, i.p. treatment has not been widely accepted as the standard of care in the United States and is infrequently used in Europe...
November 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29232378/genetic-variations-at-8q24-and-gastric-cancer-susceptibility-a-meta-analysis-study
#18
Pengke Zhi, Jian Shi, Feng Liu
BACKGROUND: Published data on the association between genetic variants on the 8q24 chromosome and gastric cancer (GC) susceptibility are inconclusive. Here we present a meta-analysis designed to evaluate the relationship between 8q24 variants (single nucleotide polymorphisms (SNPs) labeled rs6983267 and rs1447295) and risk of developing GC. METHODS: A literature search was performed using studies published on PubMed, Science Direct, OVID and Web of Science databases up to December 2016...
2017: PloS One
https://www.readbyqxmd.com/read/29232358/genetic-polymorphisms-of-insulin-like-growth-factor-1-are-associated-with-osteosarcoma-risk-and-prognosis
#19
Jianshui Mao, Genying Zhuang, Zhikang Chen
BACKGROUND Insulin-like growth factor 1 (IGF-1) gene plays an important role in bone and soft tumors. IGF-1 gene polymorphisms have been revealed to be correlated with the carcinogenesis and progression of solid malignancies. We therefore hypothesized that IGF-1 genetic polymorphisms might be associated with the risks and outcomes of osteosarcomas in Chinese individuals. MATERIAL AND METHODS This study included 173 conventional osteosarcoma individuals and 175 tumor-free controls. Five single nucleotide polymorphisms (SNPs) of IGF-1 (rs6214, rs6218, rs35767, rs5742612, and rs5742714) were genotyped...
December 12, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29232195/crossover-design-in-transcranial-direct-current-stimulation-studies-on-motor-learning-potential-pitfalls-and-difficulties-in-interpretation-of-findings
#20
Mana Biabani, Michael Farrell, Maryam Zoghi, Gary Egan, Shapour Jaberzadeh
Crossover designs are used by a high proportion of studies investigating the effects of transcranial direct current stimulation (tDCS) on motor learning. These designs necessitate attention to aspects of data collection and analysis to take account of design-related confounds including order, carryover, and period effects. In this systematic review, we appraised the method sections of crossover-designed tDCS studies of motor learning and discussed the strategies adopted to address these factors. A systematic search of 10 databases was performed and 19 research papers, including 21 experimental studies, were identified...
December 12, 2017: Reviews in the Neurosciences
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