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https://www.readbyqxmd.com/read/28645175/perturbation-to-cholesterol-at-the-neuromuscular-junction-confers-botulinum-neurotoxin-a-sensitivity-to-neonatal-mice
#1
Baskaran Thyagarajan, Joseph G Potian, Joseph J McArdle, Padmamalini Baskaran
Botulinum neurotoxin A (BoNT/A) cleaves SNAP25 at the motor nerve terminals (MNT) and inhibits stimulus evoked acetylcholine release (SEAR). This causes skeletal muscle paralysis. However, younger neonatal mice (<P7; less than 7 days old) are resistant to the neuroparalytic effects of BoNT/A. That is, in vivo injection of BoNT/A at the innervations of Extensor digitorum longus (EDL) muscle in the hindlimbs inhibited the toe spread reflex within 24 hours following BoNT/A injection in adult mouse and in older (> P7) neonatal mice younger than 7 days-age remained unaffected by BoNT/A injection...
June 22, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28644175/guillain-barr%C3%A3-syndrome-after-elective-spinal-surgery
#2
Eric Yensen Chen, Corinne Stratton, Brian Mercer, Anna Hohler, Tony Y Tannoury, Chadi Tannoury
Guillain-Barré syndrome is a rare autoimmune condition characterized by ascending motor weakness of the extremities that can ascend to the diaphragm, causing substantial morbidity and mortality. This case report describes a 57-year-old man who exhibited characteristics of Guillain-Barré syndrome 9 days after undergoing lumbar fusion at L3-S1. The diagnosis was based on the patient's ascending motor weakness and areflexia and was confirmed with electromyography. The patient progressed to respiratory failure, requiring mechanical ventilation...
June 21, 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/28642454/inclusion-body-myositis-a-case-presenting-with-respiratory-failure-and-autopsy-findings-leading-to-the-hypothesis-of-a-paraneoplastic-cause
#3
Christopher Dardis, Ariel Antezana, Kurenai Tanji, Paul J Maccabee
BACKGROUND Sporadic inclusion body myositis (IBM) is the most common acquired myopathy seen in adults aged over 50 years, with a prevalence estimated at between 1 and 70 per million. Weakness of the diaphragm with loss of vital capacity is almost universal in IBM. This is almost always asymptomatic. When respiratory complications occur, they are most often due to aspiration. Respiratory failure due to diaphragmatic weakness is exceptionally rare, particularly as the presenting symptom of the disease. It is not currently considered to be a paraneoplastic syndrome...
June 23, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28641911/image-fusion-of-real-time-ultrasonography-with-computed-tomography-factors-affecting-the-registration-error-and-motion-of-focal-hepatic-lesions
#4
Min Woo Lee, Hyun Jeong Park, Tae Wook Kang, Jiwon Ryu, Won-Chul Bang, Bora Lee, Eun Sun Lee, Byung Ihn Choi
Factors affecting the registration error (RE) and motion of focal hepatic lesions (FHLs) in image fusion of real-time ultrasonography (US) with computed tomography (CT) images were prospectively assessed by focusing on respiratory movement and FHL location. Real-time US and pre-acquired CT images at end-inspiration were fused with FHLs for 103 patients. Three-dimensional US data containing FHLs were obtained during end-inspiratory/expiratory phases. Multivariate analysis revealed that diaphragm motion (p < 0...
June 19, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28641748/abnormal-lung-development-in-congenital-diaphragmatic-hernia
#5
Dustin Ameis, Naghmeh Khoshgoo, Richard Keijzer
The outcomes of patients diagnosed with congenital diaphragmatic hernia (CDH) have recently improved. However, mortality and morbidity remain high, and this is primarily caused by the abnormal lung development resulting in pulmonary hypoplasia and persistent pulmonary hypertension. The pathogenesis of CDH is poorly understood, despite the identification of certain candidate genes disrupting normal diaphragm and lung morphogenesis in animal models of CDH. Defects within the lung mesenchyme and interstitium contribute to disturbed distal lung development...
June 2017: Seminars in Pediatric Surgery
https://www.readbyqxmd.com/read/28641603/molecular-detection-of-sarcocystis-lutrae-in-the-european-badger-meles-meles-in-scotland
#6
T Lepore, P M Bartley, F Chianini, A I Macrae, E A Innes, F Katzer
Neck samples from 54 badgers and 32 tongue samples of the same badgers (Meles meles), collected in the Lothians and Borders regions of Scotland, were tested using polymerase chain reactions (PCRs) directed against the 18S ribosomal DNA and the internal transcribed spacer (ITS1) region of protozoan parasites of the family Sarcocystidae. Positive results were obtained from 36/54 (67%) neck and 24/32 (75%) tongue samples using an 18S rDNA PCR. A 468 base pair consensus sequence that was generated from the 18S rDNA PCR amplicons (KX229728) showed 100% identity to Sarcocystis lutrae...
June 23, 2017: Parasitology
https://www.readbyqxmd.com/read/28639940/genetic-specification-of-left-right-asymmetry-in-the-diaphragm-muscles-and-their-motor-innervation
#7
Camille Charoy, Sarah Dinvaut, Yohan Chaix, Laurette Morlé, Isabelle Sanyas, Muriel Bozon, Karine Kindbeiter, Bénédicte Durand, Jennifer M Skidmore, Lies De Groef, Motoaki Seki, Lieve Moons, Christiana Ruhrberg, James F Martin, Donna M Martin, Julien Falk, Valerie Castellani
The diaphragm muscle is essential for breathing in mammals. Its asymmetric elevation during contraction correlates with morphological features suggestive of inherent left-right (L/R) asymmetry. Whether this asymmetry is due to L versus R differences in the muscle or in the phrenic nerve activity is unknown. Here, we have combined the analysis of genetically modified mouse models with transcriptomic analysis to show that both the diaphragm muscle and phrenic nerves have asymmetries, which can be established independently of each other during early embryogenesis in pathway instructed by Nodal, a morphogen that also conveys asymmetry in other organs...
June 22, 2017: ELife
https://www.readbyqxmd.com/read/28639250/regulation-of-nephrin-phosphorylation-in-diabetes-and-chronic-kidney-injury
#8
Benoit Denhez, Pedro Geraldes
Diabetes is the leading cause of microalbuminuria and end-stage renal failure in industrial countries. Disruption of the filtration barrier, seen in almost all nephrotic diseases and diabetes, is the result of the loss or effacement of the podocyte foot process, notably damage of proteins within the slit diaphragm such as nephrin. For many years, nephrin has been viewed as a structural component of the slit diaphragm. It is now well recognized that nephrin contains several tyrosine residues in its cytoplasmic domain, which influences the development of glomerular injury...
June 22, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28638595/use-of-90-ethanol-to-decontaminate-stethoscopes-in-resource-limited-settings
#9
Bijendra Raj Raghubanshi, Supriya Sapkota, Arjab Adhikari, Aman Dutta, Utsuk Bhattarai, Rastriyata Bhandari
BACKGROUND: In developing countries like Nepal, 90% ethanol is cheap and is available in most hospitals. The unavailability of isopropyl alcohol (IPA) in these settings led us to compare the efficacy between 90% ethanol and isopropyl alcohol pads in reducing the bacterial contamination of diaphragm of stethoscope. METHODS: A randomized blinded experimental study was carried out to determine the difference between cleaning stethoscopes with 90% ethanol and IPA. Cultures of diaphragm were taken before and after cleaning with one of the cleaning agent...
2017: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/28635197/depression-anxiety-and-chronic-pain-in-patients-with-chronic-obstructive-pulmonary-disease-the-influence-of-breath
#10
Bruno Bordoni, Fabiola Marelli, Bruno Morabito, Beatrice Sacconi
Chronic obstructive pulmonary disease (COPD) is a major public health problems, causing significant mortality and morbidity in the world. It is a complex and progressive disease, characterized by chronic inflammation and dysfunction of the respiratory airways. The article reviews the available information on the potential role of the diaphragm in this disease. The purpose is to identify a potential correlation between symptoms such as depression, anxiety and chronic pain, frequently observed in COPD, with the activity of the diaphragm...
May 25, 2017: Monaldi Archives for Chest Disease, Archivio Monaldi Per le Malattie del Torace
https://www.readbyqxmd.com/read/28633275/phrenic-nerve-reconstruction-and-bilateral-diaphragm-plication-after-lobectomy
#11
Shuichi Shinohara, Tetsu Yamada, Mitsuhiro Ueda, Hiroyoshi Ishinagi, Takahisa Matsuoka, Shinjiro Nagai, Katsunari Matsuoka, Yoshihiro Miyamoto
A 49-year-old man with left phrenic nerve paralysis caused by mediastinal tumor resection 28 years earlier was found to have a nodule in the right upper lobe. The right phrenic nerve was severed during right upper lobectomy but was reconstructed along with bilateral plication of the diaphragm. The patient was weaned from the ventilator during the daytime on postoperative day 13 and was discharged home on postoperative day 48. Three months postoperatively, chest fluoroscopic imaging showed recovery of movement of the right diaphragm...
July 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28632694/multiorgan-involvement-of-chemotherapy-induced-sarcoidosis-mimicking-progression-of-lymphoma-on-fdg-pet-ct
#12
Prateek Sanan, Yang Lu
A 35-year-old woman with biopsy-proven recurrent Hodgkin lymphoma in the neck lymph nodes received salvage chemotherapy of brentuximab/insulin growth factor-methotrexate. Although the patient continued doing well clinically with no constitutional symptoms or significant laboratory abnormalities following the second recurrence, subsequent FDG PET CT examinations over the next 2 years revealed multiple new FDG-avid foci including lymph nodes above/below the diaphragm, liver, spleen, lungs, and bone. An alternate diagnosis of chemotherapy-induced sarcoidosis was suggested and confirmed on both bone marrow and right inguinal node biopsy...
June 19, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28632682/diaphragm-sparing-nerve-blocks-for-shoulder-surgery-an-alternative-approach
#13
Vikram Bansal, Uma Shastri, Christopher Canlas, Jeffrey C Gadsden
No abstract text is available yet for this article.
July 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/28631022/risk-analysis-and-outcomes-of-bronchopulmonary-sequestrations
#14
Chun Hong, Gang Yu, Jing Tang, QianLi Liu, Bo Xia
BACKGROUND: Researched and discussed the risks and outcomes of bronchopulmonary sequestrations, especially the intralobar type. METHODS: A retrospective review of our experiences with bronchopulmonary sequestrations from January 2012 to April 2015 is reported. The present study researched and discusses the risks and outcomes of bronchopulmonary sequestrations, especially the intralobar type, compared with other types of bronchopulmonary sequestrations in symptoms, surgery, pathology, and excretion...
June 19, 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/28630645/the-use-of-laparoscopy-in-managing-penetrating-thoracoabdominal-injuries-in-africa-83-cases-reviewed
#15
Zach M Koto, Fusi Mosai, Oleh Y Matsevych
BACKGROUND: The use of laparoscopy in managing haemodynamically stable patients with penetrating thoracoabdominal injuries in developed countries is wildly practiced, but in Africa, the use of laparoscopy is still in its infancy stage. We reviewed a single centre experience in using laparoscopy in Africa for management of patients with both isolated diaphragmatic injuries as well as diaphragmatic injuries associated with intra-abdominal injuries requiring intervention. METHODS: A retrospective analysis of prospectively collected data of patients presenting with penetrating thoracoabdominal injuries was done...
2017: World Journal of Emergency Surgery: WJES
https://www.readbyqxmd.com/read/28629718/changes-in-podocyte-trpc-channels-evoked-by-plasma-and-sera-from-patients-with-recurrent-fsgs-and-by-putative-glomerular-permeability-factors
#16
Eun Young Kim, Hila Roshanravan, Stuart E Dryer
Primary forms of focal and segmental glomeruloslerosis (FSGS) are driven by circulating factors that cause dysfunction or loss podocytes. Rare genetic forms of FSGS can be caused by mutations in TRPC6, which encodes a Ca(2+)-permeable cationic channel expressed in mesangial cells and podocytes; and NPHS2, which encodes podocin, a TRPC6-binding protein expressed in podocyte slit diaphragm domains. Here we observed that exposing immortalized mouse podocytes to serum or plasma from recurrent FSGS patients for 24h increased the steady-state cell-surface abundance of TRPC6, accompanied by an increase in currents through endogenous TRPC6 channels evoked by a hypoosmotic stretch stimulus...
June 16, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28628341/observational-study-of-neural-respiratory-drive-during-sleep-at-high-altitude
#17
Joerg Steier, Nic Cade, Ben Walker, John Moxham, Caroline Jolley
Steier, Joerg, Nic Cade, Ben Walker, John Moxham, and Caroline Jolley. Observational study of neural respiratory drive during sleep at high altitude. High Alt Med Biol. 16:000-000, 2017. AIMS: Ventilation at altitude changes due to altered levels of pO2, pCO2 and the effect on blood pH. Nocturnal ventilation is particularly exposed to these changes. We hypothesized that an increasing neural respiratory drive (NRD) is associated with the severity of sleep-disordered breathing at altitude...
June 19, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28627353/-ultrasonographic-evaluation-of-diaphragm-structure-and-function
#18
Feifei Wang, Xiaoping Zhu, Shaolin Ma
Diaphragm is the principal respiratory muscle. Diaphragm dysfunction resulting from mechanical ventilation, chronic cardiopulmonary disease, medicine, cardio-thoracic surgery, septic shock and chronic malnutrition predisposes to weaning failure from mechanical ventilation and prolongs intensive care unit (ICU) stay. Traditionally, the method of assessment of diaphragm structure and function was invasive, lacking specific, and was difficult to be used bedside. A number of recent studies have been suggested that ultrasonographic evaluation has been proposed as an accurate, safe and noninvasive method of quantification of diaphragm structure and function...
March 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28626323/effect-of-diaphragm-breathing-exercise-applied-on-the-basis-of-overload-principle
#19
Hae-Yong Lee, Song-Hee Cheon, Min-Sik Yong
[Purpose] The purpose of this study was to examine effects of diaphragm breathing exercise applied on the basis overload principle on respiratory function. [Subjects and Methods] The subjects of this study were 35 normal adults. They were randomly assigned to two group; the maneuver-diaphragm exercise group and self-diaphragm exercise group. The respiratory function was evaluated using the CardioTouch 3000S (BIONET, Korea) as a pulmometry device. [Results] The maneuver-diaphragm exercise was more effective on functional vital capacity and forced expiratory volume at one second when compared to the self-diaphragm exercise...
June 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28626302/the-immediate-effect-of-diaphragm-taping-with-breathing-exercise-on-muscle-tone-and-stiffness-of-respiratory-muscles-and-spo2-in-stroke-patient
#20
Joong-San Wang, Kyun-Hee Cho, Shin-Jun Park
[Purpose] This study aimed to examine the immediate effects of diaphragm taping with breathing exercise on the tone and stiffness in the respiratory muscles of patient with stroke. [Subjects and Methods] A total of 28 subjects, 14 in the diaphragm taping with breathing exercise group and 14 in the breathing exercise group, were administered respective intervention methods. Subsequently, the muscle tone and stiffness in upper trapezius, scalene, external oblique abdominal and ractus abdominis muscle of both the respiratory muscles were measured...
June 2017: Journal of Physical Therapy Science
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