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https://www.readbyqxmd.com/read/28822908/pseudophyllomitus-vesiculosus-larsen-and-patterson-1990-lee-2002-a-poorly-studied-phagotrophic-biflagellate-is-the-first-characterized-member-of-stramenopile-environmental-clade-mast-6
#1
Takashi Shiratori, Rabindra Thakur, Ken-Ichiro Ishida
There are many eukaryotic lineages that are exclusively composed of environmental sequences and lack information about which species are included. Regarding stramenopiles, at least 18 environmental lineages, known as marine stramenopiles (MAST), have been recognized. Since each MAST lineage forms deep branches in the stramenopiles, the characterization of MAST members is key to understanding the diversity and evolution of stramenopiles. In this study, we established a culture of Pseudophyllomitus vesiculosus, which is a poorly studied phagotrophic flagellate of uncertain taxonomic position...
July 6, 2017: Protist
https://www.readbyqxmd.com/read/28822635/radiographic-tibial-tunnel-assessment-after-anterior-cruciate-ligament-reconstruction-using-hamstring-tendon-autografts-and-biocomposite-screws-a-prospective-study-with-5-year-follow-up
#2
Ioannis Karikis, Lars Ejerhed, Ninni Sernert, Lars Rostgård-Christensen, Jüri Kartus
PURPOSE: To radiographically assess the tibial tunnel up to 5 years after anterior cruciate ligament (ACL) reconstruction using hamstring tendon autografts and biocomposite interference screws. METHODS: Fifty-one patients underwent anatomic single-bundle ACL reconstruction with metal interference screws in the femur and biocomposite interference screws in the tibia. Standardized digital radiographs with weight-bearing anteroposterior and lateral views of the index knee were taken in the early postoperative period and at 2 and 5 years postoperatively...
August 16, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28822629/acute-intrapartum-rupture-of-the-pubic-symphysis-requiring-resuscitation-and-surgical-intervention-a-case-report
#3
Marie Buitendyk, Barbara Brennan, Parag Vora, Patricia Smith, Stephanie Winsor
BACKGROUND: Pubic symphysis rupture significant enough to cause serious complications or require surgical intervention is exceedingly rare. Here we review the literature and examine the details of a unique presentation. CASE: A 27-year-old woman presented in labour at 34+6 weeks gestation after an uncomplicated monochorionic-diamniotic twin pregnancy. After vaginal delivery, she developed a substantial labial hematoma. Hours later, she became hemodynamically unstable...
August 16, 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28822377/multifaceted-treatment-for-a-black-bear-attack
#4
Stephen Spencer, Karen Safcsak, Joseph A Ibrahim
No abstract text is available yet for this article.
August 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28822279/chemical-synthesis-of-guanosine-diphosphate-mannuronic-acid-gdp-mana-and-its-c-4-o-methyl-and-c-4-deoxy-congeners
#5
Qingju Zhang, P Lynne Howell, Herman S Overkleeft, Dmitri V Filippov, Gijsbert A van der Marel, Jeroen D C Codée
Described is the first synthesis of guanosine diphosphate mannuronic acid (GDP-ManA), the sugar donor used by algae and bacteria for the production of alginate, an anionic polysaccharide composed of β-d-mannuronic acid (ManA) and α-l-guluronic acid (GulA). Understanding the biosynthesis of these polyanionic polysaccharides on the molecular level, opens up avenues to use and modulate the biosynthesis machinery for biotechnological and therapeutic applications. The synthesis reported here delivers multi-milligram amounts of the GDP-ManA donor that can be used to study the polymerase (Alg8 in Pseudomonas aeruginosa) that generates the poly-ManA chain...
August 11, 2017: Carbohydrate Research
https://www.readbyqxmd.com/read/28822245/sensitive-fluorescence-on-off-probes-for-the-fast-detection-of-a-chemical-warfare-agent-mimic
#6
Muhammad Shar Jhahan Khan, Ya-Wen Wang, Mathias O Senge, Yu Peng
Two highly sensitive probes bearing a nucleophilic imine moiety have been utilized for the selective detection of chemical warfare agent (CWA) mimics. Diethyl chlorophosphate (DCP) was used as mimic CWAs. Both iminocoumarin-benzothiazole-based probes not only demonstrated a remarkable fluorescence ON-OFF response and good recognition, but also exhibited fast response times (10s) along with color changes upon addition of DCP. Limits of detection for the two sensors 1 and 2 were calculated as 0.065μM and 0.21μM, respectively, which are much lower than most other reported probes...
August 7, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28822220/eremophilane-type-sesquiterpenes-from-fungi-and-their-medicinal-potential
#7
Kamila Tomoko Yuyama, Diana Fortkamp, Wolf-Rainer Abraham
Eremophilanes are sesquiterpenes with a rearranged carbon skeleton formed both by plants and fungi, however, almost no plant eremophilanes are found in fungi. These eremophilanes possess mainly phytotoxic, antimicrobial, anticancer and immunomodulatory properties and in this review fungal eremophilanes with bioactivities of potential medicinal applications are reviewed and discussed. A special focus is set on natural products bearing highly functionalized fatty acids at C-1 or C-3 position of the eremophilane backbone...
August 28, 2017: Biological Chemistry
https://www.readbyqxmd.com/read/28822094/quantitative-knee-cartilage-measurement-at-mr-imaging-of-patients-with-anterior-cruciate-ligament-tear
#8
Kazuki Kato, Tamotsu Kamishima, Eiji Kondo, Tomohiro Onodera, Shota Ichikawa
In previous studies, numerous approaches were proposed that assess knee cartilage volume quantitatively using 3D magnetic resonance (MR) imaging. However, the clinical use of these approaches is limited because 3D MR is prone to metal artifacts in postoperative cases. Our purpose in this study was to validate a method for knee cartilage volume quantification using conventional MR imaging in patients who underwent anterior cruciate ligament (ACL) reconstruction surgery. The study included 16 patients who underwent MR imaging before and 1 year after ACL reconstruction surgery...
August 18, 2017: Radiological Physics and Technology
https://www.readbyqxmd.com/read/28822068/polyethylene-damage-increases-with-varus-implant-alignment-in-posterior-stabilized-and-constrained-condylar-knee-arthroplasty
#9
Zhichang Li, Christina I Esposito, Chelsea N Koch, Yuo-Yu Lee, Douglas E Padgett, Timothy M Wright
BACKGROUND: Implant malalignment in primary TKA has been reported to increase stresses placed on the bearing surfaces of implant components. We used a longitudinally maintained registry coupled with an implant retrieval program to consider whether preoperative, postoperative, or prerevision malalignment was associated with increased risk of revision surgery after TKA. QUESTIONS/PURPOSES: (1) What is the relative polyethylene damage on medial and lateral compartments of the tibial plateaus from revised TKAs? (2) Does coronal TKA alignment affect implant performance, such that TKAs aligned in varus are predisposed to experience increased polyethylene damage? (3) Does TKA alignment differ between postoperative and prerevision radiographs, and if so, what does this difference suggest about the mechanical contact load placed on a knee with a TKA? METHODS: Between 2007 and 2012, we performed 18,065 primary TKAs at our institution...
August 18, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28822038/translocator-protein-pet-imaging-in-a-preclinical-prostate-cancer-model
#10
Mohammed N Tantawy, H Charles Manning, Todd E Peterson, Daniel C Colvin, John C Gore, Wenfu Lu, Zhenbang Chen, C Chad Quarles
PURPOSE: The identification and targeting of biomarkers specific to prostate cancer (PCa) could improve its detection. Given the high expression of translocator protein (TSPO) in PCa, we investigated the use of [(18)F]VUIIS1008 (a novel TSPO-targeting radioligand) coupled with positron emission tomography (PET) to identify PCa in mice and to characterize their TSPO uptake. PROCEDURES: Pten(pc-/-), Trp53(pc-/-) prostate cancer-bearing mice (n = 9, 4-6 months old) were imaged in a 7T MRI scanner for lesion localization...
August 18, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/28821934/whole-exome-sequencing-to-identify-the-cause-of-congenital-sensorineural-hearing-loss-in-carriers-of-a-heterozygous-gjb2-mutation
#11
Thomas Parzefall, Alexandra Frohne, Martin Koenighofer, Andreas Kirchnawy, Berthold Streubel, Christian Schoefer, Klemens Frei, Trevor Lucas
Bi-allelic variations in the gap junction protein beta-2 (GJB2) gene cause up to 50% of cases of newborn hearing loss. Heterozygous pathogenic GJB2 variations are also fivefold overrepresented in idiopathic patient groups compared to the normal-hearing population. Whether hearing loss in this group is due to unidentified additional variations within GJB2 or variations in other deafness genes is unknown in most cases. Whole-exome sequencing offers an effective approach in the search for causative variations in patients with Mendelian diseases...
August 18, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28821924/-89-zr-labeled-nivolumab-for-imaging-of-t-cell-infiltration-in-a-humanized-murine-model-of-lung-cancer
#12
Christopher G England, Dawei Jiang, Emily B Ehlerding, Brian T Rekoske, Paul A Ellison, Reinier Hernandez, Todd E Barnhart, Douglas G McNeel, Peng Huang, Weibo Cai
PURPOSE: Nivolumab is a human monoclonal antibody specific for programmed cell death-1 (PD-1), a negative regulator of T-cell activation and response. Acting as an immune checkpoint inhibitor, nivolumab binds to PD-1 expressed on the surface of many immune cells and prevents ligation by its natural ligands. Nivolumab is only effective in a subset of patients, and there is limited evidence supporting its use for diagnostic, monitoring, or stratification purposes. METHODS: (89)Zr-Df-nivolumab was synthesized to map the biodistribution of PD-1-expressing tumor infiltrating T-cells in vivo using a humanized murine model of lung cancer...
August 19, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28821913/molecular-insights-into-the-origin-of-the-brown-rust-resistance-gene-bru1-among-saccharum-species
#13
Heng-Bo Wang, Ping-Hua Chen, Yan-Qing Yang, Angelique D'Hont, Yun-Hai Lu
Analysis of 387 sugarcane clones using Bru 1 diagnostic markers revealed two possible sources of Bru 1 in Chinese cultivars: one from Saccharum spontaneum and another from Saccharum robustum of New Guinea. Sugarcane brown rust (SBR) is an important fungal disease in many sugarcane production areas around the world, and can cause considerable yield losses in susceptible sugarcane cultivars. One major SBR resistance gene, named Bru1, initially identified from cultivar R570, was shown to be a major SBR resistance source in most of the sugarcane producing areas of the world...
August 18, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/28821874/global-methylation-correlates-with-clinical-status-in-multiple-sclerosis-patients-in-the-first-year-of-ifnbeta-treatment
#14
María Jesús Pinto-Medel, Begoña Oliver-Martos, Patricia Urbaneja-Romero, Isaac Hurtado-Guerrero, Jesús Ortega-Pinazo, Pedro Serrano-Castro, Óscar Fernández, Laura Leyva
The alteration of DNA methylation patterns are a key component of disease onset and/or progression. Our objective was to evaluate the differences in Long Interspersed Nuclear Element-1 (LINE-1) methylation levels, as a surrogate marker of global DNA methylation, between multiple sclerosis (MS) patients and healthy controls. In addition, we assessed the association of LINE-1 methylation with clinical disease activity in patients treated with IFNbeta (IFNβ). We found that individuals with high levels of LINE-1 methylation showed 6-fold increased risk of suffering MS...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821793/molecular-mechanisms-of-atlastin-mediated-er-membrane-fusion-revealed-by-a-fret-based-single-vesicle-fusion-assay
#15
Kyung Tae Kim, Yeojin Moon, Yunsu Jang, Kang Taek Lee, Changwook Lee, Youngsoo Jun, Sanghwa Lee
Homotypic fusion of endoplasmic reticulum membranes is driven by atlastin GTPases; however, the underlying mechanism remains largely unknown. Here, using a FRET-based single-vesicle fusion assay with liposomes bearing the yeast atlastin Sey1p, we investigated the molecular mechanisms of atlastin-mediated membrane tethering and fusion. Although Sey1p-bearing proteoliposomes frequently underwent membrane tethering in a GTP hydrolysis-dependent manner as reported in studies using bulk assays, only a small fraction of the tethered liposomes proceeded to fusion...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821728/dynamic-weight-bearing-analysis-is-effective-for-evaluation-of-tendinopathy-using-a-customized-corridor-with-multi-directional-force-sensors-in-a-rat-model
#16
Po-Ting Wu, Chieh-Hsiang Hsu, Fong-Chin Su, I-Ming Jou, Shih-Yao Chen, Chao-Liang Wu, Wei-Ren Su, Li-Chieh Kuo
Few studies discuss kinetic changes in tendinopathy models. We propose a customized corridor to evaluate dynamic weight bearing (DWB) and shearing forces. Sixty rats were randomly given ultrasound-assisted collagenase injections (Collagenase rats) or needle punctures (Control rats) in their left Achilles tendons, and then evaluated 1, 4, and 8 weeks later. The Collagenase rats always had significantly (p < 0.001) higher histopathological and ultrasound feature scores than did the Controls, significantly lower DWB values in the injured than in the right hindlimbs, and compensatorily higher (p < 0...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821592/global-analysis-of-gene-expression-in-response-to-whole-chromosome-aneuploidy-in-hexaploid-wheat
#17
Ai Zhang, Ning Li, Lei Gong, Xiaowan Gou, Bin Wang, Xin Deng, Changping Li, Qianli Dong, Huakun Zhang, Bao Liu
Aneuploidy, a condition of unbalanced chromosome content, represents a large-effect mutation that bears significant relevancy to human health and microbe adaptation. As such, extensive studies of aneuploidy have been conducted in unicellular model organisms and cancer cells. Aneuploidy also frequently is associated with plant polyploidization, but its impact on gene expression and relevance to polyploid genome evolution/functional innovation remain largely unknown. Here, we used a panel of diverse types of whole-chromosome aneuploidy of hexaploid wheat, all under the common genetic background of cv...
August 18, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28821572/rolling-neutrophils-form-tethers-and-slings-under-physiologic-conditions-in-vivo
#18
Alex Marki, Konrad Buscher, Zbigniew Mikulski, Axel Pries, Klaus Ley
Human and mouse neutrophils are known to form tethers when rolling on selectins in vitro. Tethers are ∼0.2 μm thin, ∼5-10 μm-long structures behind rolling cells that can swing around to form slings that serve as self-adhesive substrates. Here, we developed a mouse intravital imaging method, where the neutrophil surface is labeled by injecting fluorescently labeled mAb to Ly-6G. Venules in the cremaster muscle of live mice were imaged at a high frame rate using a confocal microscope equipped with a fast resonant scanner...
August 18, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28821560/optoacoustic-detection-of-early-therapy-induced-tumor-cell-death-using-a-targeted-imaging-agent
#19
Bangwen Xie, Michal R Tomaszewski, Andre Neves, Susana Ros, De-En Hu, Sarah McGuire, Stefanie Roshy Mullins, David A Tice, Richard C A Sainson, Sarah E Bohndiek, Robert W Wilkinson, Kevin M Brindle
The development of new treatments and their deployment in the clinic may be assisted by imaging methods that allow an early assessment of treatment response in individual patients. The C2A domain of Synaptotagmin-I (C2Am), which binds to the phosphatidylserine (PS) exposed by apoptotic and necrotic cells, has been developed as an imaging probe for detecting cell death. Multispectral optoacoustic tomography (MSOT) is a real-time and clinically applicable imaging modality that was used here with a near infrared (NIR) fluorophore-labeled C2Am to image tumor cell death in mice treated with a TNF-related apoptosis-inducing ligand receptor 2 (TRAILR2) agonist and with 5-fluorouracil (5-FU)...
August 18, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28821471/non-surgical-management-of-myomas
#20
Shannon K Laughlin-Tommaso
Uterine myomas are a common condition and the leading cause of hysterectomy. Clinically, myomas can be challenging because they range from being asymptomatic to causing severe, debilitating symptoms and occur in many women before child-bearing is complete. Thus, women often seek uterine- conserving and non-surgical management of their myomas. In this review, the available uterine-conserving treatment options from medical management through minimally invasive procedures will be discussed. To the extent of research available, the sustainability of symptom improvement and the effects on future fertility will be reviewed...
August 15, 2017: Journal of Minimally Invasive Gynecology
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