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https://www.readbyqxmd.com/read/28108669/developmental-differences-in-dynamic-muscle-tendon-behavior-implications-for-movement-efficiency
#1
C M Waugh, T Korff, A J Blazevich
Children perform cyclic motor tasks less efficiently than adults, however the mechanisms underlying such differences are not fully understood. One mechanism that may contribute these age-related differences is a differential contribution of muscles and tendons to a given muscle tendon unit (MTU) excursion. The aims of this study were to a) compare muscle and tendon excursion between children and adults performing vertical hopping, and b) determine if children and adults choose a hopping frequency that maximizes movement efficiency, based on the utilization of energy-saving mechanisms...
January 20, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28108524/acbd5-and-vapb-mediate-membrane-associations-between-peroxisomes-and-the-er
#2
Joseph L Costello, Inês G Castro, Christian Hacker, Tina A Schrader, Jeremy Metz, Dagmar Zeuschner, Afsoon S Azadi, Luis F Godinho, Victor Costina, Peter Findeisen, Andreas Manner, Markus Islinger, Michael Schrader
Peroxisomes (POs) and the endoplasmic reticulum (ER) cooperate in cellular lipid metabolism and form tight structural associations, which were first observed in ultrastructural studies decades ago. PO-ER associations have been suggested to impact on a diverse number of physiological processes, including lipid metabolism, phospholipid exchange, metabolite transport, signaling, and PO biogenesis. Despite their fundamental importance to cell metabolism, the mechanisms by which regions of the ER become tethered to POs are unknown, in particular in mammalian cells...
January 20, 2017: Journal of Cell Biology
https://www.readbyqxmd.com/read/28108483/measuring-hip-muscle-strength-in-patients-with-femoroacetabular-impingement-and-other-hip-pathologies-a-systematic-review
#3
E Mayne, A Memarzadeh, P Raut, A Arora, V Khanduja
OBJECTIVES: The aim of this study was to systematically review the literature on measurement of muscle strength in patients with femoroacetabular impingement (FAI) and other pathologies and to suggest guidelines to standardise protocols for future research in the field. METHODS: The Cochrane and PubMed libraries were searched for any publications using the terms 'hip', 'muscle', 'strength', and 'measurement' in the 'Title, Abstract, Keywords' field. A further search was performed using the terms 'femoroacetabular' or 'impingement'...
January 2017: Bone & Joint Research
https://www.readbyqxmd.com/read/28108423/isolated-transverse-process-fractures-a-systematic-analysis
#4
REVIEW
Daniel T Nagasawa, Timothy T Bui, Carlito Lagman, Seung J Lee, Lawrance K Chung, Tianyi Niu, Alexander Tucker, Bilwaj Gaonkar, Isaac Yang, Luke Macyszyn
OBJECTIVE: To review the literature on isolated transverse process fractures (ITPFs) and provide evidence for and validate the current practice of conservative management. METHODS: The PubMed database was searched for published literature related to ITPFs. Baseline patient (age, sex, presentation, mechanism of injury) and fracture (number of fractures, level, single or multi-segmental) characteristics were extracted. Management, and outcomes were also recorded. Statistical comparisons were ascertained through N-1 Pearson Chi-squared tests...
January 17, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28108399/fine-structure-of-the-anterior-median-eyes-of-the-funnel-web-spider-agelena-labyrinthica-araneae-agelenidae
#5
Wolfgang-D Schröer
Only few electron microscopic studies exist on the structure of the main eyes (anterior median eyes, AME) of web spiders. The present paper provides details on the anatomy of the AME in the funnel-web spider Agelena labyrinthica. The retina consists of two separate regions with differently arranged photoreceptor cells. Its central part has sensory cells with rhabdomeres on 2, 3, or 4 sides, whereas those of the ventral retina have only two rhabdomeres on opposite sides. In addition, the rhabdomeres of the ventral retina are arranged in a specific way: Whereas in the most ventral part they form long tangential rows, those towards the center are detached and are arranged radially...
January 17, 2017: Arthropod Structure & Development
https://www.readbyqxmd.com/read/28108344/reward-sensitivity-and-body-weight-the-intervening-role-of-food-responsive-behavior-and-external-eating
#6
Laura Vandeweghe, Sandra Verbeken, Leentje Vervoort, Ellen Moens, Caroline Braet
BACKGROUND: During the last three decades, the prevalence of childhood overweight and obesity has increased worldwide. It is well established that different child-related factors such as food approach behaviors (i.e. eating behaviors that imply movements towards food) contribute to the development of overweight. However, research is lacking on the underlying mechanisms leading to food approach behaviors, which in turn lead to overweight. SUBJECT/METHODS: Via parent-report questionnaires, we investigated the relation between the personality trait reward sensitivity and body weight in a convenience sample of 211 children aged 2...
January 17, 2017: Appetite
https://www.readbyqxmd.com/read/28108265/palliative-care-and-parkinson-s-disease-meeting-summary-and-recommendations-for-clinical-research
#7
REVIEW
Benzi M Kluger, Siobhán Fox, Suzanne Timmons, Maya Katz, Nicholas B Galifianakis, Indu Subramanian, Julie H Carter, Miriam J Johnson, Edward W Richfield, David Bekelman, Jean S Kutner, Janis Miyasaki
INTRODUCTION: Palliative care is an approach to caring for patients and families affected by serious illnesses that focuses on the relief of suffering through the management of medical symptoms, psychosocial issues, advance care planning and spiritual wellbeing. Over the past decade there has been an emerging clinical and research interest in the application of palliative care approaches to Parkinson's disease (PD) and outpatient palliative care services are now offered by several movement disorders centers...
January 11, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28107802/movement-kinematics-of-the-ipsilesional-upper-extremity-in-persons-with-moderate-or-mild-stroke
#8
Eva-Lena Bustrén, Katharina Stibrant Sunnerhagen, Margit Alt Murphy
BACKGROUND: An increasing number of studies have indicated that the ipsilesional arm may be impaired after stroke. There is, however, a lack of knowledge whether ipsilesional deficits influence movement performance during purposeful daily tasks. OBJECTIVE: The aim of this study was to investigate whether, and to what extent, movement impairments are present while performing an ipsilesional upper extremity task during the first 3 months after stroke. METHODS: Movement kinematics describing movement time, smoothness, velocity, strategy, and pattern were captured during a standardized drinking task in 40 persons with first-ever stroke and 20 controls...
January 1, 2017: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/28107517/high-emigration-propensity-and-low-mortality-on-transfer-drives-female-biased-dispersal-of-pyriglena-leucoptera-in-fragmented-landscapes
#9
Marcelo Awade, Carlos Candia-Gallardo, Cintia Cornelius, Jean Paul Metzger
Dispersal is a biological process performed in three stages: emigration, transfer and immigration. Intra-specific variation on dispersal behavior, such as sex-bias, is very common in nature, particularly in birds and mammals. However, dispersal is difficult to measure in the field and many hypotheses concerning the causes of sex-biased dispersal remain without empirical confirmation. An important limitation of most empirical studies is that inferences about sex-biased dispersal are based only on emigration proneness or immigration success data...
2017: PloS One
https://www.readbyqxmd.com/read/28107474/enacted-reading-comprehension-using-bodily-movement-to-aid-the-comprehension-of-abstract-text-content
#10
Michael P Kaschak, Carol M Connor, Jennifer L Dombek
We report a design study that assessed the feasibility of Enacted Reading Comprehension (ERC), an intervention designed to teach 3rd and 4th grade students (n = 40 and 25, respectively) to use gestures to understand an increasingly abstract set of texts. Students were taught to use gestures to understand the idea of "opposing forces" in a concrete setting-the forces at play as tectonic plates move past each other-and then taught to use the gestures to understand opposing forces in more abstract situations. For example, students were taught to use gestures to understand the opposing sides of an argument, and to understand the internal conflicts that arise as individuals are faced with moral dilemmas...
2017: PloS One
https://www.readbyqxmd.com/read/28107390/melanoma-cell-adhesion-and-migration-is-modulated-by-the-uronyl-2-o-sulfotransferase
#11
Katerina Nikolovska, Dorothe Spillmann, Jörg Haier, Andrea Ladányi, Christian Stock, Daniela G Seidler
Although the vast majority of melanomas are characterized by a high metastatic potential, if detected early, melanoma can have a good prognostic outcome. However, once metastasised, the prognosis is bleak. We showed previously that uronyl-2-O sulfotransferase (Ust) and 2-O sulfation of chondroitin/dermatan sulfate (CS/DS) are involved in cell migration. To demonstrate an impact of 2-O sulfation in metastasis we knocked-down Ust in mouse melanoma cells. This significantly reduced the amount of Ust protein and enzyme activity...
2017: PloS One
https://www.readbyqxmd.com/read/28107235/an-experimental-biomechanical-study-on-artificial-atlantoodontoid-joint-replacement-in-dogs
#12
Quanjin Zang, Yanming Liu, Dengfeng Wang, Haopeng Li, Pinglin Yang, Dong Wang, Xijing He
STUDY DESIGN: This study tested the biomechanics of artificial atlantoodontoid joint replacement (AAOJR) in a dog model. Dogs were divided into the artificial AAOJR group (n=10), the decompression group (n=10), and the healthy control group (n=10) using a random number table. OBJECTIVE: To evaluate whether the use of AAOJR for repair of atlantoaxial instability retains rotation and restores stability. SUMMARY OF BACKGROUND DATA: Atlantoaxial instability is characterized by excessive movement or laxity at the junction between the atlas (C1) and axis (C2)...
February 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28107176/integrating-neurobiology-of-emotion-regulation-and-trauma-therapy-reflections-on-emdr-therapy
#13
Anabel González, Lucía Del Río-Casanova, Ania Justo-Alonso
Emotion dysregulation is a frequent feature in trauma-related disorders. Different kinds of emotion dysregulation seem to be linked to particular psychiatric conditions, and there is growing evidence of the association between neurobiological correlates and those dysregulation patterns. Nevertheless, many of the recent findings from the field of the neurobiology have not been translated into clinical practice and are insufficiently contemplated in trauma-oriented therapies. The aim of this article is to review recent developments in the field of emotion regulation connecting these issues with the practical implementation of psychotherapeutic procedures...
January 20, 2017: Reviews in the Neurosciences
https://www.readbyqxmd.com/read/28107130/the-use-of-miniscrews-in-orthodontics-a-review-of-selected-clinical-applications
#14
Eliakim Mizrahi
This paper provides a brief review of the history and development of mini screws and presents its structural features, with particular reference to the screw sizes relevant to clinical orthodontics, site selection and the different placement techniques. It covers the clinical applications of miniscrews, incorporating the principle of direct and indirect anchorage as well as the use of intraoral auxiliaries for distal movement of molars. The role of palatal miniscrews for retraction of anterior teeth, and when used in combination with buccal miniscrews for intrusion of buccal teeth is also covered along with the possible causes of miniscrew failure...
November 1, 2016: Primary Dental Journal
https://www.readbyqxmd.com/read/28107109/sex-with-neighbors-canada-and-canadians-in-the-u-s-homophile-press
#15
Marc Stein
This article examines U.S. homophile magazine contributions from and representations of Canada from 1953 to 1964. Drawing on 240 articles, letters, and other items that were published in ONE, Mattachine Review, and The Ladder, the essay first reviews Canadian-authored materials and then shows that U.S. gay and lesbian movement periodicals depicted Canada as more sexually conservative than the United States in three ways and more sexually liberal in one way. The magazines presented Canada as more sexually conservative in its failure to develop an organized gay and lesbian movement, its policies and practices of sexual censorship, and its opposition to progressive homosexual law reform...
January 20, 2017: Journal of Homosexuality
https://www.readbyqxmd.com/read/28106399/-1-h-nmr-shows-slow-phospholipid-flip-flop-in-gel-and-fluid-bilayers
#16
Drew Marquardt, Frederick A Heberle, Tatiana Miti, Barbara Eicher, Erwin London, John Katsaras, Georg Pabst
We measured the transbilayer diffusion of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) in large unilamellar vesicles in both the gel (Lβ') and fluid (Lα) phases. The choline resonance of headgroup-protiated DPPC exchanged into the outer leaflet of headgroup-deuterated DPPC-d13 vesicles was monitored using (1)H NMR spectroscopy coupled with the addition of a paramagnetic shift reagent. This allowed us to distinguish between the inner and outer leaflet DPPC, and determine the flip-flop rate as a function of temperature...
January 20, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28106367/alignment-of-carbon-nanotubes-in-carbon-nanotube-fibers-through-nanoparticles-a-route-for-controlling-mechanical-and-electrical-properties
#17
Muhammad Mohsin Hossain, Md Akherul Islam, Hossain Shima, Mudassir Hasan, Moonyong Lee
This is the first study that describes how semiconducting ZnO can act as an alignment agent in carbon nanotubes (CNTs) fibers. Due to the alignment of CNTs through the ZnO nanoparticles linking groups, the CNTs inside the fibers were equally distributed by the attraction of bonding forces into sheet-like bunches, such that any applied mechanical breaking load was equally distributed to each CNT inside the fiber, making them mechanically robust against breaking loads. Although semiconductive ZnO nanoparticles were used here, the electrical conductivity of the aligned CNT fiber was comparable to bare CNT fibers, suggesting that the total electron movement through the CNTs inside the aligned CNT fiber is not disrupted by the insulating behavior of ZnO nanoparticles...
January 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28106355/comparative-study-of-fiberoptic-guided-versus-intubating-laryngeal-mask-airway-assisted-awake-orotracheal-intubation-in-patients-with-unstable-cervical-spine-a-randomized-controlled-trial
#18
Tanmay Jadhav, Kamath Sriganesh, Madhusudan K Reddy, Dhritiman Chakrabarti
BACKGROUND: A safe airway technique minimizes intubation-associated cervical-spine movement and consequent neurological injury in patients with unstable cervical spine (UCS). Awake fiberoptic-guided intubation (FGI) is preferred in patients with UCS. Alternatively, intubating laryngeal mask airway assisted intubation (ILMA-AI) can be performed both during elective and emergency, requires less expertise and is cost-effective. This study evaluated cervical-spine movement during FGI and ILMA-AI in patients with UCS...
January 20, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28106310/mechanism-of-type-iii-protein-secretion-regulation-of-flha-conformation-by-a-functionally-critical-charged-residue-cluster
#19
Marc Erhardt, Paige Wheatley, Eun A Kim, Takanori Hirano, Yang Zhang, Mayukh K Sarkar, Kelly T Hughes, David F Blair
The bacterial flagellum contains a specialized secretion apparatus in its base that pumps certain protein subunits through the growing structure to their sites of installation beyond the membrane. A related apparatus functions in the injectisomes of gram-negative pathogens to export virulence factors into host cells. This mode of protein export is termed type-III secretion (T3S). Details of the T3S mechanism are unclear. It is energized by the proton gradient; here, a mutational approach was used to identify proton-binding groups that might function in transport...
January 20, 2017: Molecular Microbiology
https://www.readbyqxmd.com/read/28106229/the-rm-pressfit-vitamys-5-year-swiss-experience-of-the-first-100-cups
#20
Michael Wyatt, Jan Weidner, Dominik Pfluger, Martin Beck
BACKGROUND: The RM Pressfit vitamys is a titanium particle-coated monoblock cup with vitamin E stabilised highly cross-linked polyethylene. Initial fixation is achieved via press-fit with subsequent stability by bone on-growth. This is the first study to report the 5-year results of this design. METHODS: We performed a prospective cohort study according to STROBE guidelines of 100 consecutive total hip replacements (THRs) in 92 patients all with ceramic heads. Demographic data, pre/postoperative visual analogue scale (VAS) for pain and satisfaction, Harris Hip Scores (HHS) and complications were recorded...
January 20, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
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