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https://www.readbyqxmd.com/read/28636823/how-bacteria-respond-to-material-stiffness-during-attachment-a-role-of-escherichia-coli-flagellar-motility
#1
Fangchao Song, Megan E Brasch, Hao Wang, James H Henderson, Karen Sauer, Dacheng Ren
Material stiffness has been shown to have potent effects on bacterial attachment and biofilm formation, but the mechanism is still unknown. In this study, response to material stiffness by Escherichia coli during attachment was investigated with biofilm assays and cell tracking using the Automated Contour-base Tracking for In Vitro Environments (ACTIVE) computational algorithm. By comparing the movement of E. coli cells attached on poly(dimethylsiloxane) (PDMS) surfaces of different Young's moduli (0.1 and 2...
June 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28630786/ophthoselfie-detailed-self-imaging-of-cornea-and-anterior-segment-by-smartphone
#2
Abdullah Kaya
OBJECTIVES: To describe the ophthoselfie, a method by which everyone can take detailed self-images of the cornea and anterior segment with a smartphone. MATERIALS AND METHODS: A 90-diopter non-contact double aspheric lens was attached to posterior camera of the smartphone by clear tape. Images of one eye on the screen of the smartphone could be seen with the other eye in the mirror and images were taken. RESULTS: Accurate and detailed images of the cornea and anterior segment of the eye could be taken...
June 2017: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/28630251/valnoctamide-inhibits-cytomegalovirus-infection-in-developing-brain-and-attenuates-neurobehavioral-dysfunctions-and-brain-abnormalities
#3
Sara Ornaghi, Lawrence S Hsieh, Angélique Bordey, Patrizia Vergani, Michael J Paidas, Anthony N van den Pol
Cytomegalovirus (CMV) is the most common infectious cause of brain defects and neurological dysfunction in developing human babies. Due to the teratogenicity and toxicity of available CMV antivirals, treatment options during early development are markedly limited. Valnoctamide (VCD), a neuroactive mood stabilizer with no known teratogenic activity, was recently demonstrated to have anti-CMV potential. However, it is not known whether this can be translated into an efficacious therapeutic effect to improve CMV-induced adverse neurological outcomes...
June 19, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28627717/direction-dependent-contraction-forces-on-cell-boundaries-induce-collective-migration-of-epithelial-cells-within-their-sheet
#4
REVIEW
Katsuhiko Sato
During early embryonic development, epithelial cells form a monolayer sheet and migrate in a definite direction. This phenomenon, called epithelial cell migration, is an important topic in developmental biology. A characteristic feature of this process is attachment to adjacent cells during migration, which is necessary for maintaining the integrity of the sheet. However, it is unclear how these cohesive cells migrate without breaking their attachments. A mechanism for this phenomenon was recently proposed, in which direction-dependent contraction forces acting on cell boundaries induce unidirectional epithelial migration...
June 19, 2017: Development, Growth & Differentiation
https://www.readbyqxmd.com/read/28626109/-secondary-infection-of-traumatic-pulmonary-cyst-misdiagnosed-as-cholesterol-encapsulated-pleural-effusion-a-rare-case-and-review-of-literature
#5
Qianhui Zhou, Jieling Fan, Hong Peng, Ping Chen
Pulmonary cyst is a relatively common benign lesion. It is easy to be misdiagnosed when the cyst complicated with infection. This paper reported a case of a giant traumatic pulmonary cyst (diameter 10 cm) combined with chronic infection. Firstly, the patient was diagnosed as cholesterol pleurisy after undergoing thoracoscopic biopsy. With repeated pleural effusion, the patient was scheduled for right anterolateral thoracotomy, which showed a thin-walled cyst (10 cm in diameter) attached to parietal and diaphragm, with the stem of cavity originated from the right lower lobe after the cyst cavity was dissociated...
May 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28621415/building-functional-units-of-movement-generation-and-movement-sensation-in-the-embryo
#6
Peleg Hasson, Talila Volk, Adi Salzberg
The musculoskeletal and proprioceptive sensory systems exhibit intricate crosstalk between force generation, force sensation and force transmission, all of which are critical for coordinated animal locomotion. Recent developmental studies of the musculoskeletal and proprioceptive units of the invertebrate Drosophila embryo, have revealed several common molecular and structural principles mediating the formation of each of these systems. These common principles, as well as the differences between the developmental programs of the two systems, are discussed...
2017: International Journal of Developmental Biology
https://www.readbyqxmd.com/read/28620589/transcriptomic-profiling-of-high-density-giardia-foci-encysting-in-the-murine-proximal-intestine
#7
Jonathan K Pham, Christopher Nosala, Erica Y Scott, Kristofer F Nguyen, Kari D Hagen, Hannah N Starcevich, Scott C Dawson
Giardia is a highly prevalent, understudied protistan parasite causing significant diarrheal disease worldwide. Its life cycle consists of two stages: infectious cysts ingested from contaminated food or water sources, and motile trophozoites that colonize and attach to the gut epithelium, later encysting to form new cysts that are excreted into the environment. Current understanding of parasite physiology in the host is largely inferred from transcriptomic studies using Giardia grown axenically or in co-culture with mammalian cell lines...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28612177/early-life-maltreatment-but-not-lifetime-depression-predicts-insecure-attachment-in-women
#8
Anna-Lena Zietlow, Nora Nonnenmacher, Corinna Reck, Mitho Mueller, Sabine C Herpertz, Corinne Neukel, Anna Fuchs, Felix Bermpohl, Daniel Fuehrer, Dorothea Kluczniok, Catherine Hindi Attar, Charlotte Jaite, Katja Dittrich, Katja Boedeker
Early life maltreatment (ELM) poses a risk for the development of insecure attachment and depression over the life span, depending on the type of maltreatment (physical, sexual, emotional, neglect) and its severity. The aim of this study was to investigate the influence of ELM and lifetime depression on adult insecure attachment in a female sample (N = 188), consisting of n = 81 women with ELM and n = 107 without ELM. Women with ELM reported significantly higher scores on insecure attachment than women without ELM...
June 13, 2017: Archives of Women's Mental Health
https://www.readbyqxmd.com/read/28606336/identification-at-the-crime-scene-the-sooner-the-better-the-interpretation-of-rapid-identification-information-by-csis-at-the-crime-scene
#9
Madeleine de Gruijter, Claire Nee, Christianne J de Poot
New technologies will allow Crime Scene Investigators (CSIs) in the near future to analyse traces at the crime scene and receive identification information while still conducting the investigation. These developments could have considerable effects on the way an investigation is conducted. CSIs may start reasoning based on possible database-matches which could influence scenario formation (i.e. the construction of narratives that explain the observed traces) during very early phases of the investigation. The goal of this study is to gain more insight into the influence of the rapid identification information on the reconstruction of the crime and the evaluation of traces by addressing two questions, namely 1) is scenario formation influenced from the moment that ID information is provided and 2) do database matches influence the evaluation of traces and the reconstruction of the crime...
July 2017: Science & Justice: Journal of the Forensic Science Society
https://www.readbyqxmd.com/read/28605039/infant-titi-monkey-behavior-in-the-open-field-test-and-the-effect-of-early-adversity
#10
Rebecca H Larke, Alice Toubiana, Katrina A Lindsay, Sally P Mendoza, Karen L Bales
The open field test is commonly used to measure anxiety-related behavior and exploration in rodents. Here, we used it as a standardized novel environment in which to evaluate the behavioral response of infant titi monkeys (Callicebus cupreus), to determine the effect of presence of individual family members, and to assess how adverse early experience alters infant behavior. Infants were tested in the open field for 5 days at ages 4 and 6 months in four successive 5 min trials on each day. A transport cage, which was situated on one side of the open field, was either empty (non-social control) or contained the father, mother, or sibling...
June 12, 2017: American Journal of Primatology
https://www.readbyqxmd.com/read/28601913/the-effects-of-a-non-cognitive-versus-cognitive-admission-procedure-within-cohorts-in-one-medical-school
#11
Marieke de Visser, Cornelia Fluit, Janke Cohen-Schotanus, Roland Laan
In medical school selection, non-cognitive performance in particular correlates with performance in clinical practice. It is arguable, therefore, that selection should focus on non-cognitive aspects despite the predictive value of prior cognitive performance for early medical school performance. The aim of this study at Radboud University Medical Center, the Netherlands, is to determine the effects of admitting students through an autonomous non-cognitive procedure on early medical school performance. We compared their performance to the performance of students selected through an autonomous cognitive selection procedure, enrolling in the Bachelor's curriculum simultaneously...
June 10, 2017: Advances in Health Sciences Education: Theory and Practice
https://www.readbyqxmd.com/read/28597234/an-automated-approach-to-measuring-child-movement-and-location-in-the-early-childhood-classroom
#12
Dwight W Irvin, Stephen A Crutchfield, Charles R Greenwood, William D Kearns, Jay Buzhardt
Children's movement is an important issue in child development and outcome in early childhood research, intervention, and practice. Digital sensor technologies offer improvements in naturalistic movement measurement and analysis. We conducted validity and feasibility testing of a real-time, indoor mapping and location system (Ubisense, Inc.) within a preschool classroom. Real-time indoor mapping has several implications with respect to efficiently and conveniently: (a) determining the activity areas where children are spending the most and least time per day (e...
June 8, 2017: Behavior Research Methods
https://www.readbyqxmd.com/read/28593407/feasibility-of-real-time-location-systems-in-monitoring-recovery-after-major-abdominal-surgery
#13
Robert D Dorrell, Sarah A Vermillion, Clancy J Clark
BACKGROUND: Early mobilization after major abdominal surgery decreases postoperative complications and length of stay, and has become a key component of enhanced recovery pathways. However, objective measures of patient movement after surgery are limited. Real-time location systems (RTLS), typically used for asset tracking, provide a novel approach to monitoring in-hospital patient activity. The current study investigates the feasibility of using RTLS to objectively track postoperative patient mobilization...
June 7, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28591476/clinical-features-and-evolution-of-the-gelastic-seizures-hypothalamic-hamartoma-syndrome
#14
Salvatore Striano, Pasquale Striano
Gelastic seizures, usually with onset in early infancy, are the hallmark manifestation of hypothalamic hamartoma. This seizure type is directly generated by hamartoma itself, intrinsically epileptogenic because of its anatomofunctional organization. Other types of seizures, focal or generalized, may appear during the evolution, probably resulting from mechanisms of secondary epileptogenesis. Nevertheless, the clinical expression and the severity of the syndrome, ranging from a focal drug-resistant epilepsy to a catastrophic generalized encephalopathy with severe cognitive and behavioral impairments, depends on the size and the site of attachment of the hamartoma...
June 2017: Epilepsia
https://www.readbyqxmd.com/read/28588599/investigation-of-amino-acids-as-herbicides-for-control-of-orobanche-minor-parasitism-in-red-clover
#15
Mónica Fernández-Aparicio, Alexandre Bernard, Laurent Falchetto, Pascal Marget, Bruno Chauvel, Christian Steinberg, Cindy E Morris, Stephanie Gibot-Leclerc, Angela Boari, Maurizio Vurro, David A Bohan, David C Sands, Xavier Reboud
Certain amino acids induce inhibitory effects in plant growth due to feedback inhibition of metabolic pathways. The inhibition patterns depend on plant species and the plant developmental stage. Those amino acids with inhibitory action on specific weeds could be utilized as herbicides, however, their use for weed control has not been put into practice. Orobanche minor is a weed that parasitizes red clover. O. minor germination is stimulated by clover root exudates. The subsequent seedling is an obligated parasite that must attach quickly to the clover root to withdraw its nutrients...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28584702/a-new-view-on-the-morphology-and-phylogeny-of-eugregarines-suggested-by-the-evidence-from-the-gregarine-ancora-sagittata-leuckart-1860-labb%C3%A3-1899-apicomplexa-eugregarinida
#16
Timur G Simdyanov, Laure Guillou, Andrei Y Diakin, Kirill V Mikhailov, Joseph Schrével, Vladimir V Aleoshin
BACKGROUND: Gregarines are a group of early branching Apicomplexa parasitizing invertebrate animals. Despite their wide distribution and relevance to the understanding the phylogenesis of apicomplexans, gregarines remain understudied: light microscopy data are insufficient for classification, and electron microscopy and molecular data are fragmentary and overlap only partially. METHODS: Scanning and transmission electron microscopy, PCR, DNA cloning and sequencing (Sanger and NGS), molecular phylogenetic analyses using ribosomal RNA genes (18S (SSU), 5...
2017: PeerJ
https://www.readbyqxmd.com/read/28583512/comprehensive-management-of-congenital-choanal-atresia
#17
Pierre Brihaye, Isabelle Delpierre, Andrée De Villé, Anne-Britt Johansson, Dominique Biarent, Anne-Laure Mansbach
OBJECTIVES: To present results of a one-stage minimally invasive surgical procedure for congenital choanal atresia (CCA). Seven outcome measures were applied. MATERIALS AND METHODS: Retrospective study conducted between 1999 and 2015. The same endonasal endoscopic approach with multiflaps and no stenting was used on 36 children. The flaps were attached with fibrine glue. There were 50% unilateral and 50% bilateral cases, 70% primary and 30% secondary surgery. The mean age at primary surgery for bilateral atresia was 10 days and for unilateral atresia 4 years...
July 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28580913/the-ribosome-and-its-role-in-protein-folding-looking-through-a-magnifying-glass
#18
Abid Javed, John Christodoulou, Lisa D Cabrita, Elena V Orlova
Protein folding, a process that underpins cellular activity, begins co-translationally on the ribosome. During translation, a newly synthesized polypeptide chain enters the ribosomal exit tunnel and actively interacts with the ribosome elements - the r-proteins and rRNA that line the tunnel - prior to emerging into the cellular milieu. While understanding of the structure and function of the ribosome has advanced significantly, little is known about the process of folding of the emerging nascent chain (NC)...
June 1, 2017: Acta Crystallographica. Section D, Structural Biology
https://www.readbyqxmd.com/read/28580261/all-arthroscopic-coracoclavicular-ligament-reconstruction-surgical-technique-using-a-semitendinosus-allograft-and-tenodesis-screws
#19
Xinning Li, Anand Padmanabha, Justin Koh, Antonio Cusano
Acromioclavicular joint injuries account for 9% of shoulder girdle injuries and are most often associated with direct blows to the shoulder or axially directed forces onto the ipsilateral extremity. Type IV, V, and VI injuries are generally managed surgically, whereas type I and II injuries are treated with sling immobilization, early shoulder range of motion, and physical therapy. Type III injuries are more controversial but are generally managed surgically in the active and high-demand patient. When surgical treatment is indicated, the primary goal of a coracoclavicular (CC) ligament reconstruction is to restore anatomic reduction of the acromioclavicular joint and reconstruct the biomechanical forces of the CC ligaments...
April 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28580247/repair-of-proximal-hamstring-tears-a-surgical-technique
#20
Gilbert Moatshe, Jorge Chahla, Alexander R Vap, Marcio Ferrari, George Sanchez, Justin J Mitchell, Robert F LaPrade
Proximal hamstring tears are among the most common sports-related injuries. These injuries often occur as strains or partial tears at the proximal muscle belly or the musculotendinous junction, with avulsion injuries of the proximal attachment occurring less frequently. Regardless of the mechanism, they produce functional impairment and negatively affect an athlete's performance. Various classifications for these injuries are reported in the literature. Early surgical treatment is recommended for patients with either a 2-tendon tear/avulsion with more than 2 cm retraction or those with complete 3-tendon tears...
April 2017: Arthroscopy Techniques
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