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https://www.readbyqxmd.com/read/28651339/formation-of-silica-aggregates-in-sorghum-root-endodermis-is-predetermined-by-cell-wall-architecture-and-development
#1
Milan Soukup, Michal Martinka, Dragana Bosnic, Mária Caplovicová, Rivka Elbaum, Alexander Lux
Background and Aims: Deposition of silica in plant cell walls improves their mechanical properties and helps plants to withstand various stress conditions. Its mechanism is still not understood and silica-cell wall interactions are elusive. The objective of this study was to investigate the effect of silica deposition on the development and structure of sorghum root endodermis and to identify the cell wall components involved in silicification. Methods: Sorghum bicolor seedlings were grown hydroponically with (Si+) or without (Si-) silicon supplementation...
June 22, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28650931/hypertrophic-restrictive-cardiomyopathy-with-apical-thinning-a-peculiar-case-of-genotype-phenotype-correlation
#2
Pierluigi Lesizza, Marco Merlo, Giancarlo Vitrella, Gianfranco Sinagra
: Hypertrophic cardiomyopathy (HCM) is the most common cardiomyopathy, mainly caused by mutations in genes encoding for sarcomere proteins. Even though many mutations have been recognized to be causative of HCM, specific HCM phenotypes can be rarely predicted by the genotype, possibly as a consequence of the presence of still unknown disease-modifying genes [Maron et al. (2013). Lancet 381:242-55]. In this very peculiar case of HCM hypertrophy localized to left ventricle, mid-wall segments coexisted with a restrictive filling pattern and an apical wall thinning mimicking hypoplasia of left ventricle apex...
June 24, 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/28648878/an-effective-and-safe-surgical-approach-for-a-superior-sulcus-tumor-a-case-report
#3
Soichi Oka, Kenichi Kobayashi, Hiroki Matsumiya, Masatoshi Kanayama, Shuichi Shinohara, Shinji Shinohara, Akihiro Taira, Taiji Kuwata, Masaru Takenaka, Yasuhiro Chikaishi, Ayako Hirai, Yuko Tashima, Naoko Imanishi, Koji Kuroda, Yoshinobu Ichiki, Fumihiro Tanaka
INTRODUCTION: Superior sulcus tumors, frequently referred to as Pancoast tumors, are a wide range of tumors invading a section of the apical chest wall called the thoracic inlet. For this reason, a surgical approach and complete resection may be difficult to accomplish. We experienced a locally advanced superior sulcus tumor (SST) located from the anterior to posterior apex thoracic inlet and performed complete resection after definitive chemoradiation. PRESENTATION OF CASE: A 71-year-old Japanese male presented at our hospital due to left back pain and an abnormal chest computed tomography (CT) scan showing 80×70×60-mm tumor located in the left middle apex thoracic inlet...
June 17, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28648486/focal-brachytherapy-for-localized-prostate-cancer-urinary-toxicity-depends-on-tumor-location
#4
Victor Srougi, Eric Barret, Igor Nunes-Silva, Mohammed Baghdadi, Silvia Garcia-Barreras, Noelle Pierrat, Francois Rozet, Marc Galiano, Rafael Sanchez-Salas, Xavier Cathelineau, Jean-Marc Cosset
PURPOSE: To evaluate whether patients with prostate cancer have worse functional urinary recovery with focal brachytherapy (FBT) at the base versus the apex of the prostate. METHODS AND MATERIALS: The functional outcomes of patients treated with FBT at the base of the prostate were compared with those of patients treated with FBT at the apex. Urinary symptoms, continence, and erectile dysfunction were measured using the International Prostate Symptom Score (IPSS), International Continence Score (ICS), and International Index of Erectile Function (IIEF-5) questionnaires, respectively, at baseline and at 6, 12, and 24 months after treatment...
June 22, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28647957/-long-term-effectiveness-of-transvaginal-high-uterosacral-ligament-suspension
#5
L Duan, Y X Lu, W J Shen, X Liu, J X Liu, Y H Zhang, J Ge, Y Zhao, K Niu, W Y Wang
Objective: To assess the long-term effectiveness of the transvaginal high uterosacral ligament suspension (HUS) in women suffering from advanced pelvic organ prolapse (POP). Methods: A retrospective review of records identified 118 women who underwent transvaginal HUS with or without additional concomitant anterior and (or) posterior repairs from June 2003 to August 2009 in the First Affiliated Hospital, General Hospital of People's Liberation Army. Of 118 women, 104 women completed the follow-up during study period; these 104 women were analysed...
June 25, 2017: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/28647647/itraq-based-quantitative-analysis-of-alveolar-bone-resorption-in-rats-with-experimental-periodontitis
#6
Weidong Yang, Yafan Gao, Yajie Qian, Jingjing Li, Qingang Hu
OBJECTIVE: Periapical periodontitis results in alveolar bone resorption around the root apex. During the progression of inflammation, host cells release various inflammatory mediators and pro-inflammatory cytokines through immune responses. However, the pathological mechanisms associated with periapical bone destruction remain unclear. This study was objected to identify differentially regulated proteins in periapical periodontitis via a quantitative proteomics approach using isobaric tags for relative and absolute quantification (iTRAQ) labelling of peptides...
June 13, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28647286/the-taper-corrosion-pattern-observed-for-one-bi-modular-stem-design-is-related-to-geometry-determined-taper-mechanics
#7
Dennis Buente, Michael Bryant, Michael Ward, Anne Neville, Michael Morlock, Gerd Huber
Bi-modular primary hip stems exhibit high revision rates owing to corrosion at the stem-neck taper, and are associated with local adverse tissue reactions. The aim of this study was to relate the wear patterns observed for one bi-modular design to its design-specific stem-neck taper geometry. Wear patterns and initial geometry of the taper junctions were determined for 27 retrieved bi-modular primary hip arthroplasty stems (Rejuvenate, Stryker Orthopaedics) using a tactile coordinate-measuring device. Regions of high-gradient wear patterns were additionally analyzed via optical and electron microscopy...
June 21, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28645788/effects-of-acute-altered-gravity-during-parabolic-flight-and-or-vestibular-loss-on-cell-proliferation-in-the-rat-dentate-gyrus
#8
Yiwen Zheng, Catherine M Gliddon, Phillip Aitken, Lucy Stiles, Marie-Laure Machado, Bruno Philoxene, Pierre Denise, Paul F Smith, Stephane Besnard
Both parabolic flight, i.e. a condition of altered gravity, and loss of vestibular function, have been suggested to affect spatial learning and memory, which is known to be influenced by neurogenesis in the hippocampus. In this study we investigated whether short alternated micro- and hyper-gravity stimulations during parabolic flight and/or loss of vestibular function, would alter cell proliferation in the hippocampal dentate gyrus of rats, by measuring the number of bromodeoxyuridine (BrdU)-incorporated cells...
June 20, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28644898/spatio-temporal-orientation-of-microtubules-controls-conical-cell-shape-in-arabidopsis-thaliana-petals
#9
Huibo Ren, Xie Dang, Xianzhi Cai, Peihang Yu, Yajun Li, Shanshan Zhang, Menghong Liu, Binqing Chen, Deshu Lin
The physiological functions of epidermal cells are largely determined by their diverse morphologies. Most flowering plants have special conical-shaped petal epidermal cells that are thought to influence light capture and reflectance, and provide pollinator grips, but the molecular mechanisms controlling conical cell shape remain largely unknown. Here, we developed a live-confocal imaging approach to quantify geometric parameters of conical cells in Arabidopsis thaliana (A.thaliana). Through genetic screens, we identified katanin (KTN1) mutants showing a phenotype of decreased tip sharpening of conical cells...
June 23, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28644558/current-understanding-of-cancer-stem-cells-review-of-their-radiobiology-and-role-in-head-and-neck-cancers
#10
REVIEW
Paul Ambrose Reid, Puthenparampil Wilson, Yanrui Li, Loredana Gabriela Marcu, Eva Bezak
Evidence of cancer cells that bear attributes analogous to those of normal stem cells has developed a hierarchical model of cancer's architecture and progression. This subset of cancer stem cells (CSCs) drives the progression and therapy resistance of cancers. Research to identify the phenotypes of these CSCs presents evidence of a subpopulation that is more resistant to therapy and may proliferate in response. Literature shows that CSCs typically represent around 1%-10% of cell populations in head and neck cancer but this proportion may increase in response to a therapeutic radiation dose...
June 23, 2017: Head & Neck
https://www.readbyqxmd.com/read/28644491/mastering-high-resolution-tip-enhanced-raman-spectroscopy-towards-a-shift-of-perception
#11
REVIEW
Marie Richard-Lacroix, Yao Zhang, Zhenchao Dong, Volker Deckert
Recent years have seen tremendous improvement of our understanding of high resolution reachable in TERS experiments, forcing us to re-evaluate our understanding of the intrinsic limits of this field, but also exposing several inconsistencies. On the one hand, more and more recent experimental results have provided us with clear indications of spatial resolutions down to a few nanometres or even on the subnanometre scale. Moreover, lessons learned from recent theoretical investigations clearly support such high resolutions, and vice versa the obvious theoretical impossibility to evade high resolution from a purely plasmonic point of view...
June 23, 2017: Chemical Society Reviews
https://www.readbyqxmd.com/read/28644431/an-in-vitro-study-on-the-efficacy-of-removing-calcium-hydroxide-from-curved-root-canal-systems-in-root-canal-therapy
#12
Ying Wang, Li-Yang Guo, Hong-Zhi Fang, Wen-Ling Zou, Ying-Ming Yang, Yuan Gao, Hui Yang, Tao Hu
To compare the efficacy of various irrigants (citric acid, ethylenediaminetetraacetic acid (EDTA) and NaOCl) and techniques in removing Ca(OH)2 in two types of curved root canal systems, simulated root canals with specific curvatures were used to investigate the effects of different irrigants and instruments on Ca(OH)2 removal. The optimal methods were verified on extracted human teeth. Simulated root canals were assigned to one of two groups based on the irrigation solution: 10% citric acid or 2.5% NaOCl. Each group was divided into four subgroups according to the technique used to remove Ca(OH)2...
June 23, 2017: International Journal of Oral Science
https://www.readbyqxmd.com/read/28642761/overexpression-of-bdmate-gene-improves-aluminum-tolerance-in-setaria-viridis
#13
Ana P Ribeiro, Wagner R de Souza, Polyana K Martins, Felipe Vinecky, Karoline E Duarte, Marcos F Basso, Bárbara A D B da Cunha, Raquel B Campanha, Patrícia A de Oliveira, Danilo C Centeno, Geraldo M A Cançado, Jurandir V de Magalhães, Carlos A F de Sousa, Alan C Andrade, Adilson K Kobayashi, Hugo B C Molinari
Acidic soils are distributed worldwide, predominantly in tropical and subtropical areas, reaching around 50% of the arable soil. This type of soil strongly reduces crop production, mainly because of the presence of aluminum, which has its solubility increased at low pH levels. A well-known physiological mechanism used by plants to cope with Al stress involves activation of membrane transporters responsible for organic acid anions secretion from the root apex to the rhizosphere, which chelate Al, preventing its absorption by roots...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28642669/concordance-for-curve-type-in-idiopathic-scoliosis-among-family-members
#14
Clarissa Miranda Carneiro de Albuquerque Olbertz, Jérôme Sales de Gauzy, Paulo Cezar Vidal Carneiro de Albuquerque, Frank Accadbled, Paula Eduarda Miranda Carneiro de Albuquerque, José Lamartine de Andrade Aguiar
OBJECTIVE: To evaluate the concordance for the curve pattern, side and levels of the superior apical vertebrae, apex and inferior apical vertebrae of curves in patients and their relatives with idiopathic scoliosis. METHODS: Concordance according to the Lenke classification for curve pattern, side and levels of the superior apical vertebrae, apex and inferior apical vertebrae were evaluated comparative and prospectively in 243 pairs of patients and respective relatives with idiopathic scoliosis...
May 2017: Acta Ortopedica Brasileira
https://www.readbyqxmd.com/read/28642090/temporary-removal-vaginal-sacral-colpopexy-a-natural-orifice-approach-to-a-gold-standard-procedure
#15
Charles R Hanes
The publisher regrets that this article has been temporarily removed. A replacement will appear as soon as possible in which the reason for the removal of the article will be specified, or the article will be reinstated. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal.
June 20, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28641300/prenatal-diagnosis-of-dextrocardia-with-complex-congenital-heart-disease-using-fetal-intelligent-navigation-echocardiography-fine-and-a-literature-review
#16
Lami Yeo, Suchaya Luewan, Dor Markush, Navleen Gill, Roberto Romero
Fetal dextrocardia is a type of cardiac malposition where the major axis from base to apex points to the right side. This condition is usually associated with a wide spectrum of complex cardiac defects. As a result, dextrocardia is conceptually difficult to understand and diagnose on prenatal ultrasound. The advantage of four-dimensional sonography with spatiotemporal image correlation (STIC) is that this modality can facilitate fetal cardiac examination. A novel method known as fetal intelligent navigation echocardiography (FINE) allows automatic generation of nine standard fetal echocardiography views in normal hearts by applying intelligent navigation technology to STIC volume datasets...
June 23, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28638945/surgical-treatment-of-unruptured-distal-basilar-artery-aneurysm-durability-and-risk-factors-for-neurological-worsening
#17
Hidetoshi Matsukawa, Hiroyasu Kamiyama, Takanori Miyazaki, Yu Kinoshita, Toshiyuki Tsuboi, Kosumo Noda, Nakao Ota, Norihiro Saito, Rihee Takeda, Sadahisa Tokuda, Rokuya Tanikawa
BACKGROUND: Distal basilar artery aneurysms (DBAs) consist of basilar apex and basilar artery-superior cerebellar artery bifurcation (BA-SCA) aneurysms. The authors aimed to investigate clinical and radiological differences between two locations and to evaluate the 12-month surgical outcome in unruptured DBAs. METHODS: Fifty-six consecutive patients who underwent surgical treatment (37 basilar apex and 19 BA-SCA aneurysms) between April 2012 and February 2016 were retrospectively evaluated...
June 21, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28638577/a-rare-case-of-apical-hypertrophic-cardiomyopathy-ahcm
#18
Seyed Abbas Mirabbasi, Koroush Khalighi, Suresh Mukkamala, Archana Kodali
Apical hypertrophic cardiomyopathy is a rare form of hypertrophic cardiomyopathy that involves thickening of the distal portion of the left ventricular wall. Most commonly seen in the Japan, with a prevalence rate of about 15% of all HCM patient, its incidence in the USA is approximately 3% of HCM cases. We report a case of a 46-year-old woman with history of hypertension who presented to emergency department with worsening dyspnea and orthopnea with features of left ventricular hypertrophy (LVH) and diffuse large T-wave inversions in the lateral leads on a 12-lead ECG...
March 2017: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/28638559/comparative-evaluation-of-anti-microbial-effects-of-triple-antibiotic-paste-and-amox-and-its-derivatives-against-e-faecalis-an-in-vitro-study
#19
Manjeet Kaur, Shrikant Kendre, Parmod Gupta, Navneet Singh, Harsimran Sethi, Neha Gupta, Rushil Acharya
BACKGROUND: Enterococcus faecalis is a microorganism commonly detected in asymptomatic, persistent endodontic infections. Triple antibiotic paste has stood the test of time as a proven antibiotic combination against E. Faecalis. However, problems with this include staining of teeth and standardization of the preparation. Thus, the search for better alternatives and better preparation techniques is still on. AIM: To observe the potential of combinations [(Amoxicillin+ Metronidazole, Amoxicillin Clavulanic Acid + Metronidazole; Amoxicillin and Cloxacillin + Metronidazole)] over Triple Antibiotic Paste...
June 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28636345/levels-of-organochlorine-pesticides-are-associated-with-amyloid-aggregation-in-apex-avian-brains
#20
Kelly A Heys, Richard F Shore, M Gloria Pereira, Francis Luke Martin
Organochlorine (OC) pesticides pose a significant environmental risk to wildlife and humans and have been associated with Alzheimer's disease (AD). This study aims to spectroscopically analyse brains from free-flying birds and link the results to OC exposure and consequent amyloid aggregation. As long-lived apex predators, predatory birds represent a sentinel species similar to humans. Therefore, the results have implications for both species and may also add to our understanding of the role OC pesticides play in the development of AD...
June 21, 2017: Environmental Science & Technology
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