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https://www.readbyqxmd.com/read/28087137/nos-interacting-protein-nosip-is-increased-in-the-colon-of-patients-with-hirschsprung-s-disease
#1
Anne-Marie O'Donnell, David Coyle, Prem Puri
PURPOSE: Voltage-dependent K(+) channels (Kv channels) participate in electrical rhythmicity and smooth muscle responses and are regulated by excitatory and inhibitory neurotransmitters. Kv channels also participate in the interstitial cell of Cajal (ICC) and smooth muscle cell (SMC) responses to neural inputs. The Kv family consists of 12 subfamilies, Kv1-Kv12, with five members of the Kv7 family identified to date: Kv7.1-Kv7.5. A recent study identified the potassium channel Kv7.5 as having a role in the excitability of ICC-IM in the mouse colon...
January 3, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28065717/muscle-complex-saving-posterior-sagittal-anorectoplasty
#2
Maher Zaiem, Feras Zaiem
INTRODUCTION: Posterior sagittal anorectoplasty (PSARP) published by DeVries and Peña in 1982 had become the preferred surgical technique for the management of anorectal malformations (ARM). The original technique is based upon complete exposure of the anorectal region by means of a median sagittal incision that runs from the sacrum to the anal dimple, cutting through all muscle structures behind the rectum by dividing the levator muscle and the muscle complex. Then, the rectum is located in front of the levator and within the limits of the muscle complex...
December 27, 2016: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28011412/electromyographic-analysis-of-muscle-activation-during-pull-up-variations
#3
James A Dickie, James A Faulkner, Matthew J Barnes, Sally D Lark
This study sought to identify any differences in peak muscle activation (EMGPEAK) or average rectified variable muscle activation (EMGARV) during supinated grip, pronated grip, neutral grip and rope pull-up exercises. Nineteen strength trained males (24.9±5y; 1.78±0.74m; 81.3±11.3kg; 22.7±2.5kgm(-2)) volunteered to participate in the study. Surface electromyography (EMG) was collected from eight shoulder-arm-forearm complex muscles. All muscle activation was expressed as a percentage of maximum voluntary isometric contraction (%MVIC)...
November 28, 2016: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/28008617/n-cadherin-a-novel-and-rapidly-remodelling-site-involved-in-vasoregulation-of-small-cerebral-arteries
#4
Zhe Sun, Min Li, Zhaohui Li, Michael A Hill, Gerald A Meininger
N-cadherin is the major cell-cell adhesion molecule in vascular smooth muscle cells (VSMC). We tested the hypothesis that N-cadherin is part of a novel mechano-sensory mechanism in VSMC and plays an active role in both the arteriolar myogenic response and during changes in vascular tone induced by vasomotor agonists. Intact and pressurized rat superior cerebellar arteries (SCA) were labelled for confocal immunofluorescence imaging. N-cadherin formed punctate adherens junctions (AJ) along the borders between VSMC...
December 23, 2016: Journal of Physiology
https://www.readbyqxmd.com/read/28005653/anatomy-of-the-corrugator-muscle
#5
Kun Hwang, Jung Hun Lee, Hee Joong Lim
The aim of this article is to systematically review the anatomy and action of the corrugator muscle. PubMed and Scopus were searched using the terms "corrugator" AND "anatomy." Among the 60 full texts from the 145 relevant abstracts, 34 articles without sufficient content were excluded and 4 articles drawn from the reference lists were added. Among the 30 articles analyzed (721 hemifaces), 28% classified by oblique head and transverse head, and 72% did not. Corrugator originated mostly from the medial supraorbital rim (45%), followed by the medial frontal bone (31%), the medial infraorbital rim (17%), and the upper nasal process (7%)...
December 21, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27995220/standardized-4-step-technique-of-bladder-neck-dissection-during-robot-assisted-radical-prostatectomy
#6
REVIEW
Mansour Alnazari, Marc Zanaty, Emad Rajih, Assaad El-Hakim, Kevin C Zorn
Bladder neck (BN) dissection is considered one of the most challenging steps during robot-assisted radical prostatectomy. Better understanding of the BN anatomy, coupled with a standardized approach may facilitate dissection while minimizing complications. We describe in this article the 4 anatomic spaces during standardized BN dissection, as well other technical maneuvers of managing difficult scenarios including treatment of a large median lobe or patients with previous transurethral resection of the prostate...
December 2016: Investigative and Clinical Urology
https://www.readbyqxmd.com/read/27974423/vegf165b-modulates-endothelial-vegfr1-stat3-signaling-pathway-and-angiogenesis-in-human-and-experimental-peripheral-arterial-disease
#7
Vijay C Ganta, Min Choi, Anna Kutateladze, Brian H Annex
RATIONALE: Atherosclerotic-arterial occlusions decrease tissue perfusion causing ischemia to lower limbs in patients with peripheral arterial disease (PAD). Ischemia in muscle induces an angiogenic response but the magnitude of this response is frequently inadequate to meet tissue perfusion requirements. Alternate splicing in the exon-8 of vascular endothelial growth factor (VEGF)-A results in production of pro-angiogenic VEGFxxxa isoforms (VEGF165a, 165 for the 165 amino acid product) and anti-angiogenic VEGFxxxb (VEGF165b) isoforms...
December 14, 2016: Circulation Research
https://www.readbyqxmd.com/read/27941492/effects-of-a-modified-german-volume-training-program-on-muscular-hypertrophy-and-strength
#8
Theban Amirthalingam, Yorgi Mavros, Guy C Wilson, Jillian L Clarke, Lachlan Mitchell, Daniel A Hackett
German Volume Training (GVT), or the 10 sets method, has been used for decades by weightlifters to increase muscle mass. To date, no study has directly examined the training adaptations following GVT. The purpose of this study was to investigate the effect of a modified GVT intervention on muscular hypertrophy and strength. Nineteen healthy males were randomly assign to 6 weeks of 10 or 5 sets of 10 repetitions for specific compound resistance exercises included in a split-routine performed 3 times per week...
November 25, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27930604/an-automated-expanded-polytetrafluoroethylene-suturing-and-coaxial-fastener-system-for-mitral-chordae-replacement-strength-feasibility-and-healing
#9
Candice Y Lee, Joshua K Wong, Jude S Sauer, Heather R Gorea, Angelo J Martellaro, Andrew R Sifain, Peter A Knight
OBJECTIVE: Mitral valve (MV) chordae replacements can be technically challenging. Technology that remotely delivers and accurately secures artificial chordae may reduce the learning curve and improve the reliability of MV repairs. METHODS: The technology involved two devices: a remote suturing device for delivery of expanded polytetrafluoroethylene (ePTFE) suture to the papillary muscle and a Coaxial titanium suture fastener (TF) device with integrated saline infusion for real-time determination of chordae length during fixation...
November 2016: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/27916369/expression-of-connexin-26-and-connexin-43-is-reduced-in-hirschsprung-s-disease
#10
David Coyle, Brian Doyle, Justin M Murphy, Anne Marie O'Donnell, John Gillick, Prem Puri
BACKGROUND: Despite having an optimal pull-through operation, some children with Hirschsprung's disease (HSCR) continue to experience persistent bowel symptoms. Coordinated colonic electrical activity depends on intercellular communication between the enteric nerves, interstitial cells of Cajal (ICCs), smooth muscle cells, and fibroblast-like (platelet-derived growth factor receptor-alpha-positive) cells. Gap junctions are low-resistance channels composed of connexin (Cx) proteins which couple cells electrically and chemically...
November 2016: Journal of Surgical Research
https://www.readbyqxmd.com/read/27863277/vitamin-d-supplementation-affects-the-igf-system-in-men-after-acute-exercise
#11
Rachel L Darr, Kathleen J Savage, Mark Baker, Gregory E Wilding, Amy Raswalsky, Todd Rideout, Richard W Browne, Peter J Horvath
OBJECTIVE: Contradictory data between the Insulin-Like Growth Factor System (IGF) system and exercise may be due to alteration in IGF binding proteins. Vitamin D (D) deficiency has been related to muscle weakness and Insulin Like Growth Factor Binding Protein 3 (IGFBP3). A Vit. D and acute exercise merge is proposed to modify the IGF system. DESIGN: D insufficient and deficient men (39.0±8.6yo with serum D (25OH D) 20.0±7.7ng/mL) did 1h of stretching (ST), aerobic (AB), and resistance (RT) exercises, before and after 28d of 4000IU/d Vit...
October 2016: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/27826394/effect-of-exercise-order-of-resistance-training-on-strength-performance-and-indices-of-muscle-damage-in-young-active-girls
#12
Maydeye Nazari, Mohammad Ali Azarbayjani, Kamal Azizbeigi
BACKGROUND: Exercise order is one of the key variables in designing resistance training (RT) that may affect physiological and functional muscle characteristics. OBJECTIVES: The purpose of this research was to examine the effect of exercise order of RT on muscle strength, lactate dehydrogenase (LDH) and creatine kinase (CK) enzymes as indices of muscle damage in active young girls. PATIENTS AND METHODS: For this purpose, 24 active girls aged 20 - 30 years voluntarily participated in six weeks RT...
September 2016: Asian Journal of Sports Medicine
https://www.readbyqxmd.com/read/27815011/impact-of-arthroscopic-lateral-acromioplasty-on-the-mechanical-and-structural-integrity-of-the-lateral-deltoid-origin-a-cadaveric-study
#13
Daniel Cole Marchetti, J Christoph Katthagen, Jacob D Mikula, Scott R Montgomery, Dimitri S Tahal, Kimi D Dahl, Travis Lee Turnbull, Peter J Millett
PURPOSE: To determine whether a 5-mm and/or 10-mm arthroscopic lateral acromioplasty (ALA) would weaken the structural and mechanical integrity of the lateral deltoid. METHODS: The acromion and lateral deltoid origin were harvested from 15 pairs (n = 30) of fresh-frozen human cadaveric shoulder specimens. One side of each specimen pair (left or right) was randomly assigned to either a 5-mm (n = 7) or 10-mm (n = 8) ALA group, and the contralateral sides (n = 15) were used as matched controls...
November 1, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/27799576/accommodative-et-high-ac-a-ratio-esotropia-the-case-for-glasses
#14
Edward L Raab
BACKGROUND AND PURPOSE: There is a continuing debate as to whether the patient optically correctable at distance to within 8 prism diopters of perfect alignment requires treatment for persisting overconvergence at near, and if treatment is indicated, what it should be. PATIENTS AND METHODS: For the patient whose misalignment at distance is reduced to 8 or fewer prism diopters, my preference is for the full cycloplegic correction plus a bifocal in the first prescription, to discourage virtually all accommodation initially, with pull back later...
January 2016: American Orthoptic Journal
https://www.readbyqxmd.com/read/27788372/higher-order-balance-control-distinct-effects-between-cognitive-task-and-manual-steadiness-constraint-on-automatic-postural-responses
#15
Daniel Boari Coelho, Catarina Bourlinova, Luis Augusto Teixeira
In the present experiment, we aimed to evaluate the interactive effect of performing a cognitive task simultaneously with a manual task requiring either high or low steadiness on APRs. Young volunteers performed the task of recovering upright balance following a mechanical perturbation provoked by unanticipatedly releasing a load pulling the participant's body backwards. The postural task was performed while holding a cylinder steadily on a tray. One group performed that task under high (cylinder' round side down) and another one under low (cylinder' flat side down) manual steadiness constraint...
December 2016: Human Movement Science
https://www.readbyqxmd.com/read/27782994/nostrilplasty-by-manipulating-the-dilator-naris-muscles-a-pilot-study
#16
Jae-A Jung, Su-Young Jung, Seung-Kyu Han, Eun-Sang Dhong, Woo Kyung Kim
: The present study was undertaken to determine whether a more aesthetically acceptable nostril shape could be created by manipulating the dilator naris muscles. Patients who had round or horizontally shaped nostrils were treated by resecting the dilator naris muscle to attenuate the dilating and lateral pulling effect of the muscles. The resected muscle segments were inserted into the nasal tip area to project the nasal tip. Manipulating the dilator muscle shaped the nostril more vertically and enhanced nasal tip augmentation...
November 2016: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27761392/periosteum-as-a-lateral-pedicle-graft-for-the-treatment-of-single-tooth-root-recession-a-novel-approach
#17
Avadhesh Kumar, Shalini Kaushal, Neelu Verma, Deepti Chandra
The treatment of gingival recession defects is indicated for esthetic and functional reasons to reduce root sensitivity, to remove muscle pull, to create or augment keratinized tissue, and to prevent disease progression. The presence of sufficient amount of periosteum adjacent to gingival recession defects makes it a suitable graft. The adult human periosteum is a highly vascular connective tissue with immense regenerative potential. It contains fibroblasts, osteogenic progenitor cells, and stem cells as a result of which it has the ability to differentiate into fibroblast, osteoblast, chondrocytes, adipocytes, and skeletal myocytes...
September 2016: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/27759786/laparoscopically-assisted-anorectoplasty-and-the-use-of-the-bipolar-device-to-seal-the-rectal-urinary-fistula
#18
Robson Azevedo Dutra, Adriana Cartafina Perez Boscollo
Background: The anorectal anomalies consist in a complex group of birth defects. Laparoscopic-assisted anorectoplasty improved visualization of the rectal fistula and the ability to place the pull-through segment within the elevator muscle complex with minimal dissection. There is no consensus on how the fistula should be managed. Aim: To evaluate the laparoscopic-assisted anorectoplasty and the treatment of the rectal urinary fistula by a bipolar sealing device...
July 2016: Arquivos Brasileiros de Cirurgia Digestiva: ABCD, Brazilian Archives of Digestive Surgery
https://www.readbyqxmd.com/read/27745915/getting-hooked-a-simple-technique-for-the-treatment-of-adhesive-injuries-to-the-eyelids
#19
Kristen Jijelava, Hongvan Le, Jack Parker, Jeffrey Yee
BACKGROUND: Ocular chemical injuries due to accidental exposure or application of cyanoacrylate, commonly known as "superglue," have increased over the past 30 years. However, current treatment options to relieve eyelid adhesions due to cyanoacrylate applications are difficult to successfully execute and can require sedation or general anesthesia. Here we describe a simple technique to release eyelid adhesions due to cyanoacrylate, or other adhesive agents, that can be successfully performed at bedside without sedation...
January 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27735127/retrograde-and-direct-wave-locomotion-in-a-photosensitive-self-oscillating-gel
#20
Lin Ren, Weibing She, Qingyu Gao, Changwei Pan, Chen Ji, Irving R Epstein
Crawling motion mediated by retrograde and direct waves, that is, in the opposite or the same direction, respectively, as the muscular wave that generates it, is a fundamental mode of biological locomotion, from which more complex and sophisticated locomotion modes involving outgrowths such as limbs and wings may have evolved. A detailed general description of muscular wave locomotion and its relationship with other modes of locomotion is a challenging task. We employ a model of a photosensitive self-oscillating gel, in which chemical pulse waves and a stimulus-responsive medium play roles analogous to nerve pulses and deformable muscles in an animal, to generate retrograde and direct waves under non-uniform illumination...
October 13, 2016: Angewandte Chemie
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