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https://www.readbyqxmd.com/read/28821594/lazy-genes-mediate-the-effects-of-gravity-on-auxin-gradients-and-plant-architecture
#1
Takeshi Yoshihara, Edgar P Spalding
A rice mutant led to the discovery of a plant-specific LAZY1 protein that controls the orientation of shoots. Arabidopsis thaliana possesses six LAZY genes having spatially distinct expression patterns. Branch angle phenotypes previously associated with single LAZY genes were here studied in roots and shoots of single and higher-order atlazy mutants. The results identify the major contributors to root and shoot branch angles and gravitropic behavior of seedling hypocotyls and primary roots. AtLAZY1 is the principal determinant of inflorescence branch angle...
August 18, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28811156/screening-of-congenital-hypothyroidism-in-preterm-low-birth-weight-and-very-low-birth-weight-neonates-a-systematic-review
#2
REVIEW
Mahin Hashemipour, Silva Hovsepian, Arman Ansari, Mojtaba Keikha, Pooyan Khalighinejad, Negar Niknam
Evidence from different screening programs indicated that the rate of congenital hypothyroidism (CH) was higher in pre-term and low-birth-weight (LBW) newborns than normal ones. Incomplete development of hypothalamic-pituitary axis in this group of neonates results in the delayed rise of TSH and missing cases with CH. Hence, there is a great need for a practicable systematic screening method for proper diagnosis of CH in this group of neonates. In this review, we systematically reviewed papers with the following key words ([Congenital Hypothyroidism AND Screening AND Thyroxine AND Thyroid Stimulating Hormone AND Low Birth Weight AND Premature]) in international electronic databases including PubMed, Scopus, and Google Scholar...
July 22, 2017: Pediatrics and Neonatology
https://www.readbyqxmd.com/read/28810846/personality-traits-and-suicide-attempts-with-and-without-psychiatric-disorders-analysis-of-impulsivity-and-neuroticism
#3
Bo Bi, Wei Liu, Die Zhou, Xu Fu, Xiaoxia Qin, Jiali Wu
BACKGROUND: There is a critical need for empirical data concerning the association of personality traits and attempted suicide with and without psychiatric disorders in mainland China. The objective of the present study is to provide such data by determining the prevalence of psychiatric disorders and analyzing the levels of impulsivity and neuroticism among people who have attempted suicide, and to examine the association between these personality traits and suicide attempt in people with or without psychiatric disorders...
August 15, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28805738/vibroacoustic-impact-on-the-architectonic-heritage-when-using-replicas-of-16th-century-weapons
#4
Angel Tomas Lloret, Sandra Sendra, Jaime Lloret, Romina Del Rey, Miguel Louis Cereceda
The recreation of historical battles next to old buildings, walls, churches, fortifications or historical facades belonging to the historical heritage of a city, has always been a source of controversy and discussion. In the absence of a clear legislation about how these buildings can be affected by the use of blunderbusses and pyrotechnics, it is necessary to carry out practical experiments to test the effect of these celebrations on these buildings. For this reason, this paper presents a set of practical experiments where the vibroacoustic effect of using weapons such as blunderbusses and harquebuses is analyzed...
August 14, 2017: Sensors
https://www.readbyqxmd.com/read/28794228/long-axis-twisting-during-locomotion-of-elongate-fishes
#5
Cassandra M Donatelli, A P Summers, E D Tytell
Fish live in a complex world and must actively adapt their swimming behavior to a range of environments. Most studies of swimming kinematics focus on two-dimensional properties related to the bending wave that passes from head to tail. However, fish also twist their bodies in 3D around their longitudinal axis as the bending wave passes down the body. We measured and characterized this movement, which we call 'wobble', in six species of elongate fishes (Anoplarchus insignis, Xiphister mucosus, Lumpenus sagitta, Pholis laeta, Apodichthys flavidus, and Ronquilus jordani) from three different habitats (intertidal, nearshore, and subtidal) using custom video analysis software...
August 9, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28792891/feasibility-and-validation-of-4-d-pulse-wave-imaging-in-phantoms-and-in-vivo
#6
Iason Z Apostolakis, Pierre Nauleau, Clement Papadacci, Matthew D McGarry, Elisa E Konofagou
Pulse wave Imaging (PWI) is a noninvasive technique for tracking the propagation of the pulse wave along the arterial wall. 3-D ultrasound imaging would aid in objectively estimating the PulseWave Velocity (PWV) vector. This study aims to introduce a novel PWV estimation method along the propagation direction, validate it in phantoms and test its feasibility in vivo. A silicone vessel phantom consisting of a stiff and a soft segment along the longitudinal axis and and a silicone vessel with a plaque were constructed...
August 3, 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28770456/detection-of-myocardial-iron-overload-by-two-dimensional-speckle-tracking-in-patients-with-beta-thalassaemia-major-a-combined-echocardiographic-and-t2-segmental-cmr-study
#7
Fausto Pizzino, Antonella Meloni, Anna Terrizzi, Tommaso Casini, Anna Spasiano, Carlo Cosmi, Massimo Allò, Concetta Zito, Scipione Carerj, Giovanni Donato Aquaro, Gianluca Di Bella, Alessia Pepe
We aimed to evaluate the role of two-dimensional speckle tracking imaging (2DSTI) in detecting early changes of myocardial deformation in patients affected by thalassemia major (TM) and its relation with myocardial iron overload (MIO) detected by T2* cardiovascular magnetic resonance (CMR). We studied 28 TM patients (15 males, 37.4 ± 10 years). All patients underwent CMR and echocardiography in the same day. Segmental and global T2* values were measured. Values of global longitudinal strain (GLS) were derived from the three apical views, while radial and circumferential strain were obtained as average strain from the short axis views at basal, mid and apical level...
August 2, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28768959/next-generation-sequencing-based-mutation-screening-of-86-patients-with-idiopathic-short-stature
#8
Atsushi Hattori, Yuko Katoh-Fukui, Akie Nakamura, Keiko Matsubara, Tsutomu Kamimaki, Hiroyuki Tanaka, Sumito Dateki, Masanori Adachi, Koji Muroya, Shinobu Yoshida, Shinobu Ida, Marie Mitani, Keisuke Nagasaki, Tsutomu Ogata, Erina Suzuki, Kenichiro Hata, Kazuhiko Nakabayashi, Yoichi Matsubara, Satoshi Narumi, Toshiaki Tanaka, Maki Fukami
Although mutations in ACAN, FGFR3, NPR2, and SHOX typically lead to skeletal dysplasia, and mutations in GHRHR, GH1, GHR, STAT5B, IGF1, IGFALS, and IGF1R usually underlie hormonal defects of the growth hormone (GH)-insulin-like growth factor 1 (IGF1) axis, such mutations have also been identified in patients with idiopathic short stature (ISS). Of these, SHOX abnormalities are known to account for a certain percentage of ISS cases, whereas the frequency of mutations in the other 10 genes in ISS cohorts remains unknown...
August 3, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/28761566/many-faces-of-renin-angiotensin-system-focus-on-eye
#9
REVIEW
Mervi Holappa, Heikki Vapaatalo, Anu Vaajanen
The renin-angiotensin system (RAS), that is known for its role in the regulation of blood pressure as well as in fluid and electrolyte homeostasis, comprises dozens of angiotensin peptides and peptidases and at least six receptors. Six central components constitute the two main axes of the RAS cascade. Angiotensin (1-7), an angiotensin converting enzyme 2 and Mas receptor axis (ACE2-Ang(1-7)-MasR) counterbalances the harmful effects of the angiotensin II, angiotensin converting enzyme 1 and angiotensin II type 1 receptor axis (ACE1-AngII-AT1R) Whereas systemic RAS is an important factor in blood pressure regulation, tissue-specific regulatory system, responsible for long term regional changes, that has been found in various organs...
2017: Open Ophthalmology Journal
https://www.readbyqxmd.com/read/28756064/ct-versus-mri-based-patient-specific-instrumentation-for-total-knee-arthroplasty-a-systematic-review-and-meta-analysis
#10
REVIEW
Xiang-Dong Wu, Bing-Yan Xiang, Martijn G M Schotanus, Zun-Han Liu, Yu Chen, Wei Huang
BACKGROUND: To determine whether computed tomography (CT) or magnetic resonance imaging (MRI) is more suitable for the patient-specific instrumentation (PSI) systems for total knee arthroplasty (TKA). METHODS: PubMed, Embase, and the Cochrane Library were searched from inception to June 2016 for prospective comparative trials that compared CT- versus MRI-based PSI systems for TKA. Our predefined primary outcome was the outliers incidence of coronal overall limb alignment...
July 26, 2017: Surgeon: Journal of the Royal Colleges of Surgeons of Edinburgh and Ireland
https://www.readbyqxmd.com/read/28751921/evaluation-of-anti-inflammatory-activities-of-qingre-qushi-recipe-qrqs-against-atopic-dermatitis-potential-mechanism-of-inhibition-of-il-33-st2-signal-transduction
#11
Mengjiao Chen, Peijun Ding, Lili Yang, Xufeng He, Chunjie Gao, Guoxun Yang, Huimin Zhang
To evaluate the anti-inflammatory activities of QRQS against AD and the inhibitory molecular mechanisms of IL-33/ST2 signal transduction, BALB/c mice were divided into six groups (normal control, OVA control, low-dose of QRQS, middle-dose of QRQS, high-dose of QRQS, and cetirizine) and epicutaneously exposed to ovalbumin or PBS for 3 weeks and treated with QRQS for 2 weeks. Skin biopsies and blood samples were obtained for histological study, antibody analysis, and RNA isolation. HaCaT cells, stimulated by TNF-α and IFN-γ, were treated with QRQS to evaluate mRNA and protein expression by RT-PCR and ELISA...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28750688/the-psychometric-characteristics-of-the-revised-depression-attitude-questionnaire-r-daq-in-pakistani-medical-practitioners-a-cross-sectional-study-of-doctors-in-lahore
#12
Mark Haddad, Ahmed Waqas, Ahmed Bashir Sukhera, Asad Zaman Tarar
BACKGROUND: Depression is common mental health problem and leading contributor to the global burden of disease. The attitudes and beliefs of the public and of health professionals influence social acceptance and affect the esteem and help-seeking of people experiencing mental health problems. The attitudes of clinicians are particularly relevant to their role in accurately recognising and providing appropriate support and management of depression. This study examines the characteristics of the revised depression attitude questionnaire (R-DAQ) with doctors working in healthcare settings in Lahore, Pakistan...
July 27, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28747252/analysis-of-the-tractive-force-pattern-on-a-knot-by-force-measurement-during-laparoscopic-knot-tying
#13
Kenta Takayasu, Kenji Yoshida, Hidefumi Kinoshita, Syunsuke Yoshimoto, Osamu Oshiro, Tadashi Matsuda
BACKGROUND: Quantifying surgical skills assists novice surgeons when learning operative techniques. We measured the interaction force at a ligation point and clarified the features of the force pattern among surgeons with different skill levels during laparoscopic knot tying. METHODS: Forty-four surgeons were divided into three groups based on experience: 13 novice (0-5 years), 16 intermediate (6-15 years), and 15 expert (16-30 years). To assess the tractive force direction and volume during knot tying, we used a sensor that measures six force-torque values (x-axis: Fx, y-axis: Fy, z-axis: Fz, and xy-axis: Fxy) attached to a slit Penrose drain...
July 19, 2017: American Journal of Surgery
https://www.readbyqxmd.com/read/28740935/effects-of-vertebral-body-sparing-proton-craniospinal-irradiation-on-the-spine-of-young-pediatric-patients-with-medulloblastoma
#14
Iain MacEwan, Brian Chou, Jeremy Moretz, Lilia Loredo, David Bush, Jerry D Slater
PURPOSE: To investigate the long-term effects of vertebral-body-sparing proton craniospinal irradiation (CSI) on the spine of young patients with medulloblastoma. METHODS AND MATERIALS: Six children between the ages of 3 and 5 years with medulloblastoma were treated with vertebral-body-sparing proton CSI after maximal safe resection. Radiation therapy was delivered in the supine position with posterior beams targeting the craniospinal axis, and the proton beam was stopped anterior to the thecal sac...
April 2017: Advances in Radiation Oncology
https://www.readbyqxmd.com/read/28734363/multi-energy-calibration-applied-to-atomic-spectrometry
#15
Alex Virgilio, Daniel A Gonçalves, Tina McSweeney, José A Gomes Neto, Joaquim A Nóbrega, George L Donati
Multi-energy calibration (MEC) is a novel strategy that explores the capacity of several analytes of generating analytical signals at many different wavelengths (transition energies). Contrasting with traditional methods, which employ a fixed transition energy and different analyte concentrations to build a calibration plot, MEC uses a fixed analyte concentration and multiple transition energies for calibration. Only two calibration solutions are required in combination with the MEC method. Solution 1 is composed of 50% v v(-1) sample and 50% v v(-1) of a standard solution containing the analytes...
August 22, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28729148/clinical-grade-expanded-regulatory-t-cells-prevent-graft-versus-host-disease-while-allowing-a-powerful-t-cell-dependent-graft-versus-leukemia-effect-in-murine-models
#16
Beatrice Del Papa, Loredana Ruggeri, Elena Urbani, Stefano Baldoni, Debora Cecchini, Tiziana Zei, Roberta Iacucci Ostini, Barbara Crescenzi, Alessandra Carotti, Antonio Pierini, Paolo Sportoletti, Paolo Di Bartolomeo, Franca Falzetti, Cristina Mecucci, Andrea Velardi, Massimo F Martelli, Mauro Di Ianni
We developed a good manufacturing practices-compatible expansion protocol to improve number and purity of regulatory T cells (Tregs) available for clinical trials. Six clinical-grade separation procedures were performed, followed by expansion with high-dose interleukin (IL)-2, anti-CD3/anti-CD28 TCR stimulation, and rapamycin for 19 days achieving a median of 8.5-fold (range, 6.25 to 13.7) expansion. FOXP3 expression was stably maintained over the culture period, while the percentage of CD127 was significantly reduced...
July 17, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28724762/stability-of-cucumber-necrosis-virus-at-the-quasi-six-fold-axis-affects-zoospore-transmission
#17
Michael B Sherman, Kishore Kakani, D'Ann Rochon, Wen Jiang, Neil R Voss, Thomas J Smith
Cucumber necrosis virus (CNV) is a member of the genus Tombusvirus and has a monopartite positive-sense RNA genome. CNV is transmitted in nature via zoospores of the fungus, Olpidium bornovanus As with other members of the Tombusvirus genus, the CNV capsid swells when exposed to alkaline pH and EDTA. We previously demonstrated that a P73G mutation blocks the virus from zoospore transmission while not significantly affecting replication in plants (1). P73 lies immediately adjacent to a putative zinc binding site (2) that is formed by three icosahedrally related His residues in the N-termini of the C subunit at the quasi 6-fold axes...
July 19, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28721541/efficacy-and-safety-of-metallic-stents-in-comparison-to-plastic-stents-for-endoscopic-drainage-of-peripancreatic-fluid-collections-a-meta-analysis-and-trial-sequential-analysis
#18
REVIEW
Rajesh Panwar, Preet Mohinder Singh
Metallic stents are being increasingly used for endoscopic drainage of peripancreatic fluid collections (PFCs) but their superiority over plastic stents has not been proven. We carried out a meta-analysis to consolidate the results from available studies and to suggest evidence-based recommendations. Studies that compared plastic and metallic stents for endoscopic drainage of PFCs and published before October 2016 were searched. Comparisons were performed for clinical success, adverse events, salvage interventions, mortality, technical success and recurrence...
July 18, 2017: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/28720905/antiplasmodial-ealapasamines-a-c-mixed-naphthylisoquinoline-dimers-from-the-central-african-liana-ancistrocladus-ealaensis
#19
Dieudonné Tshitenge Tshitenge, Doris Feineis, Virima Mudogo, Marcel Kaiser, Reto Brun, Gerhard Bringmann
Three unusual heterodimeric naphthylisoquinoline alkaloids, named ealapasamines A-C (1-3), were isolated from the leaves of the tropical plant Ancistrocladus ealaensis J. Léonard. These 'mixed', constitutionally unsymmetric dimers are the first stereochemically fully assigned cross-coupling products of a 5,8'- and a 7,8'-coupled naphthylisoquinoline linked via C-6' in both naphthalene portions. So far, only two other West and Central Ancistrocladus species were known to produce dimers with a central 6,6″-axis, yet, in contrast to the ealapasamines, usually consisting of two 5,8'-coupled monomers, like e...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28718999/resilience-is-decreased-in-irritable-bowel-syndrome-and-associated-with-symptoms-and-cortisol-response
#20
S H Park, B D Naliboff, W Shih, A P Presson, E J Videlock, T Ju, L Kilpatrick, A Gupta, E A Mayer, L Chang
BACKGROUND: Irritable bowel syndrome (IBS) is a stress-sensitive disorder associated with early adverse life events (EALs) and a dysregulated hypothalamic-pituitary-adrenal (HPA) axis. Resilience is the ability to recover and adapt positively to stress but has not been well studied in IBS. The aims of this study are to compare resilience in IBS and healthy controls (HCs) and to assess its relationships with IBS symptom severity, quality of life (QOL), EALs, and HPA axis response. METHODS: Two hundred fifty-six subjects (154 IBS, 102 HCs) completed questionnaires for resilience (Connor-Davidson Resilience Scale [CD-RISC] and Brief Resilience Scale [BRS]), IBS symptoms, IBS-QOL, and EALs...
July 18, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
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