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https://www.readbyqxmd.com/read/28433644/supraspinal-respiratory-plasticity-following-acute-cervical-spinal-cord-injury
#1
Tatiana Bezdudnaya, Vitaliy Marchenko, Lyandysha V Zholudeva, Victoria M Spruance, Michael A Lane
Impaired breathing is a devastating result of high cervical spinal cord injuries (SCI) due to partial or full denervation of phrenic motoneurons, which innervate the diaphragm - a primary muscle of respiration. Consequently, people with cervical level injuries often become dependent on assisted ventilation and are susceptible to secondary complications. However, there is mounting evidence for limited spontaneous recovery of respiratory function following injury, demonstrating the neuroplastic potential of respiratory networks...
April 19, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28431690/elevated-hemi-diaphragms-as-a-cause-of-st-segment-elevation-a-case-report-and-review-of-literature
#2
Manmohan Singh, Aditya Sood, Mobeen Ur Rehman, Mahmoud Othman, Luis Afonso
While ST-segment elevation (STE) on ECG is widely recognized as representing myocardial infarction or injury such as coronary occlusion or pericarditis, STE may occasionally ensue from non-cardiac etiologies. Indeed, gastrointestinal disorders causing STE are not well documented in the literature. We present a case wherein extreme abdominal distension and hemi-diaphragm elevation resulted in extrinsic cardiac and epicardial coronary compression manifesting as STE. Subsequent relief of the abdominal distension resulted in resolution of STE representing a noncoronary cause of STE...
April 6, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28428331/a-personalized-model-of-coq2-nephropathy-rescued-by-the-wild-type-coq2-allele-or-dietary-coenzyme-q10-supplementation
#3
Jun-Yi Zhu, Yulong Fu, Adam Richman, Zhanzheng Zhao, Patricio E Ray, Zhe Han
Clinical studies have identified patients with nephrotic syndrome caused by mutations in genes involved in the biosynthesis of coenzyme Q10 (CoQ10), a lipid component of the mitochondrial electron transport chain and an important antioxidant. However, the cellular mechanisms through which these mutations induce podocyte injury remain obscure. Here, we exploited the striking similarities between Drosophila nephrocytes and human podocytes to develop a Drosophila model of these renal diseases, and performed a systematic in vivo analysis assessing the role of CoQ10 pathway genes in renal function...
April 20, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28426411/toxoplasma-gondii-in-backyard-pigs-seroepidemiology-and-mouse-bioassay
#4
Erika Fernanda Torres Samico-Fernandes, Marcela Fernanda Torres Samico-Fernandes, Pedro Paulo Feitosa de Albuquerque, Jonatas Campos de Almeida, André de Souza Santos, André da Rocha Mota, Orestes Luiz de Souza Neto, Rinaldo Aparecido Mota
The aim of this study was to evaluate the occurrence of Toxoplasma gondii in backyard pigs destined for human consumption in Pernambuco state, Brazil. Blood and tissue samples (liver, heart, brain, lung and diaphragm) were collected from 224 pigs from legal slaughterhouses and tested for T. gondii infection. Antibodies to T. gondii were found in the sera of 37.9% (85/224) by using the immunofluorescence antibody test (cut-off - 1:64). Tissue samples from seropositive pigs were bioassayed in mice. Tissue samples from seropositive pigs and from mice of the bioassay were submitted to histopathology, immunohistochemistry, polymerase chain reaction (PCR) and sequencing; 14...
June 1, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/28425028/energy-harvesting-from-cerebrospinal-fluid-pressure-fluctuations-for-self-powered-neural-implants
#5
Levent Beker, Arnau Benet, Ali Tayebi Meybodi, Ben Eovino, Albert P Pisano, Liwei Lin
In this paper, a novel method to generate electrical energy by converting available mechanical energy from pressure fluctuations of the cerebrospinal fluid within lateral ventricles of the brain is presented. The generated electrical power can be supplied to the neural implants and either eliminate their battery need or extend the battery lifespan. A diaphragm type harvester comprised of piezoelectric material is utilized to convert the pressure fluctuations to electrical energy. The pressure fluctuations cause the diaphragm to bend, and the strained piezoelectric materials generate electricity...
June 2017: Biomedical Microdevices
https://www.readbyqxmd.com/read/28423132/repair-of-penetrating-pericardial-and-diaphragmatic-injury-with-cormatrix%C3%A2-patch-in-a-case-of-suicide-attempt
#6
Federica Jiritano, Carlo Garrasi, Lucia Cristodoro, Egidio Bevacqua, Pasquale Mastroroberto
The authors report the case of a suicide attempt. A 59-year-old man with self-inflicted penetrating chest trauma underwent emergency cardiothoracic surgery. Pre-operative computed tomography scan showed critical proximity between the blade and the right ventricle. Intraoperative findings showed a pericardial laceration and a huge diaphragmatic lesion with heart and abdominal organs integrity. The diaphragm muscle was repaired with a CorMatrix® patch, an acceptable alternative to the traditional synthetic mesh avoiding infection and repeated herniation...
January 2017: Brazilian Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28420293/acute-gastric-outlet-obstruction-secondary-to-exclusive-paraoesophageal-small-bowel-herniation-a-case-report
#7
Jean-Charles de Schoutheete, Alex M Reece-Smith, Saj A Wajed
INTRODUCTION: Herniation of abdominal viscera into the thorax may occur as a consequence of abnormal defects in the diaphragm. In adults, the most common condition relates to herniations through a weakened crural orifice via which the oesophagus normally traverses. These hiatus hernias are classified as types I-IV depending on the extent of visceral involvement. CASE REPORT: We present here a case of type IV hiatus hernia with massive mediastinal herniation of the small bowel, yet remarkable in that the stomach itself remained completely intra-abdominal...
April 19, 2017: Acta Chirurgica Belgica
https://www.readbyqxmd.com/read/28419905/spontaneous-perforation-of-common-bile-duct-in-a-young-female-an-intra-operative-surprise
#8
Sudhir Kumar Mohanty, Tanmaya Mahapatra, Bharat Kumar Behera, Bidyapati Acharya, Supreet Kumar, Jyoti Ranjan Dash, Dibyasingh Meher, Malaya Ranjan Sarangi, Shiva Prasad Sahoo
INTRODUCTION: Spontaneous CBD perforation is one of the rare causes of acute abdomen in infants and extremely rare in adults. It is rarely suspected and correctly diagnosed preoperatively. PRESENTATION OF CASE: A 17year old female presented to Emergency Department with sudden onset of pain and distention of abdomen, associated with vomiting and non-passage of flatus and stool for 3days and features of generalized peritonitis. On exploration, a perforation of size 0...
April 4, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28419052/it-s-not-just-about-the-diaphragm
#9
Darcy Price
No abstract text is available yet for this article.
May 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/28415987/validity-and-reliability-of-fluoroscopy-for-digital-radiography-a-new-way-to-evaluate-diaphragmatic-mobility
#10
Bruna Estima Leal, Márcia Aparecida Gonçalves, Liseane Gonçalves Lisboa, Larissa Martins Schmitz Linné, Michelle Gonçalves de Souza Tavares, Wellington Pereira Yamaguti, Elaine Paulin
BACKGROUND: Fluoroscopy is considered the most accurate method to evaluate the diaphragm, yet most existing methods for measuring diaphragmatic mobility using fluoroscopy are complex. To assess the validity and reliability of a new evaluation method of diaphragmatic motion using fluoroscopy by digital radiography of healthy adults. METHODS: Twenty-six adults were evaluated, according to the parameters: anthropometry and pulmonary function test. The evaluation of diaphragm mobility by means of fluoroscopy by digital radiography method was randomly conducted by two raters (A and B)...
April 17, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28413908/molecular-mechanisms-involved-in-podocyte-emt-and-concomitant-diabetic-kidney-diseases-an-update
#11
Qidi Ying, Guanzhong Wu
Epithelial-mesenchymal transition (EMT) is a tightly regulated process by which epithelial cells lose their hallmark epithelial characteristics and gain the features of mesenchymal cells. For podocytes, expression of nephrin, podocin, P-cadherin, and ZO-1 is downregulated, the slit diaphragm (SD) will be altered, and the actin cytoskeleton will be rearranged. Diabetes, especially hyperglycemia, has been demonstrated to incite podocyte EMT through several molecular mechanisms such as TGF-β/Smad classic pathway, Wnt/β-catenin signaling pathway, Integrins/integrin-linked kinase (ILK) signaling pathway, MAPKs signaling pathway, Jagged/Notch signaling pathway, and NF-κB signaling pathway...
November 2017: Renal Failure
https://www.readbyqxmd.com/read/28413621/recent-advances-in-pediatric-ventilatory-assistance
#12
REVIEW
Nicolas Nardi, Guillaume Mortamet, Laurence Ducharme-Crevier, Guillaume Emeriaud, Philippe Jouvet
In this review on respiratory assistance, we aim to discuss the following recent advances: the optimization and customization of mechanical ventilation, the use of high-frequency oscillatory ventilation, and the role of noninvasive ventilation. The prevention of ventilator-induced lung injury and diaphragmatic dysfunction is now a key aspect in the management of mechanical ventilation, since these complications may lead to higher mortality and prolonged length of stay in intensive care units. Different physiological measurements, such as esophageal pressure, electrical activity of the diaphragm, and volumetric capnography, may be useful objective tools to help guide ventilator assistance...
2017: F1000Research
https://www.readbyqxmd.com/read/28408238/novel-roles-for-podocalyxin-in-regulating-stress-myelopoiesis-rap1a-and-neutrophil-migration
#13
Pan Li, Aldona A Karaczyn, Rose McGlauflin, Amanda Favreau, Edward Jachimowicz, Calvin Vary, Kailin Xu, Don M Wojchowski, Pradeep Sathyanarayana
Podocalyxin (Podxl) is a CD34 orthologue and cell surface sialomucin with reported roles in renal podocyte diaphragm slit development, vascular cell integrity, and the progression of blood, breast, and prostate cancers. Roles for Podxl during non-malignant hematopoiesis, however, are largely undefined. Presently we have developed a Vav-Cre Podxl knockout mouse model, and report on novel roles for Podxl in governing stress myelopoiesis. At steady-state, Podxl expression among hematopoietic progenitor cells was low-level but was induced by GCSF (granulocyte colony stimulating factor) in myeloid progenitors, and by TPO (thrombopoietin) in HSCs...
April 10, 2017: Experimental Hematology
https://www.readbyqxmd.com/read/28405141/effect-of-a-poloxamer-407-based-thermosensitive-gel-on-minimization-of-thermal-injury-to-diaphragm-during-microwave-ablation-of-the-liver
#14
Li-Li Zhang, Gui-Min Xia, Yu-Jiang Liu, Rui Dou, John Eisenbrey, Ji-Bin Liu, Xiao-Wei Wang, Lin-Xue Qian
AIM: To assess the insulating effect of a poloxamer 407 (P407)-based gel during microwave ablation of liver adjacent to the diaphragm. METHODS: We prepared serial dilutions of P407, and 22.5% (w/w) concentration was identified as suitable for ablation procedures. Subsequently, microwave ablations were performed on the livers of 24 rabbits (gel, saline, control groups, n = 8 in each). The P407 solution and 0.9% normal saline were injected into the potential space between the diaphragm and liver in experimental groups...
March 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28400570/nano-silica-diaphragm-in-fiber-cavity-for-gas-pressure-measurement
#15
Shen Liu, Yiping Wang, Changrui Liao, Ying Wang, Jun He, Cailing Fu, Kaiming Yang, Zhiyong Bai, Feng Zhang
We demonstrate an ultrahigh-sensitivity gas pressure sensor based on the Fabry-Perot interferometer employing a fiber-tip diaphragm-sealed cavity. The cavity is comprised of a silica capillary and ultrathin silica diaphragm with a thickness of 170 nm, with represents the thinnest silica diaphragm fabricated thus far by an electrical arc discharge technique. The resulting Fabry-Perot interferometer-based gas pressure sensor demonstrates a gas pressure sensitivity of about 12.22 nm/kPa, which is more than two orders of magnitude greater than that of a similarly configured fiber-tip air bubble sensor...
April 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28398665/both-a-frameshift-and-a-missense-mutation-of-the-stra6-gene-observed-in-an-infant-with-the-matthew-wood-syndrome
#16
Samantha Sadowski, Nicolas Chassaing, Zuzanna Gaj, Ewa Czichos, Jan Wilczynski, Dorota Nowakowska
BACKGROUND: The Matthew-Wood syndrome is associated with mutations of the STRA6 gene. It combines a pulmonary agenesis/hypoplasia; microphthalmia/anophthalmia; congenital cardiac, digestive, and urogenital malformations; and diaphragmatic defects. CASE: A 23-year-old nulliparous woman was referred to our center after a fetal ultrasound examination at 26 weeks of pregnancy revealed an abnormal head shape, a heart malformation, multiple cysts in both kidneys, and dilated ureters...
March 1, 2017: Birth Defects Res
https://www.readbyqxmd.com/read/28397169/sleep-disordered-breathing-in-duchenne-muscular-dystrophy
#17
REVIEW
Antonella LoMauro, Maria Grazia D'Angelo, Andrea Aliverti
This review aims to explain the inevitable imbalance between respiratory load, drive, and muscular force that occurs in the natural aging of Duchenne muscular dystrophy and that predisposes these patients to sleep disordered breathing (SDB). In DMD, SDB is characterized by oxygen desaturation, apneas, hypercapnia, and hypoventilation during sleep and ultimately develops into respiratory failure during wakefulness. It can be present in all age groups. Young patients risk obstructive apneas because of weight gain, secondary to progressive physical inactivity and prolonged corticosteroid therapy; older patients hypoventilate and desaturate because of respiratory muscle weakness, in particular the diaphragm...
May 2017: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/28395568/a-case-of-ectopic-paragonimiasis-in-a-17th-century-korean-mummy
#18
Dong Hoon Shin, Yi Suk Kim, Dong Soo Yoo, Myeung Ju Kim, Chang Seok Oh, Jong Ha Hong, Eun Ju Lee, Jong Yil Chai, Min Seo
Archaeoparasitological studies on fossilized feces obtained from Joseon Dynasty (1392-1910 CE) mummies have provided invaluable data on the patterns of parasitic infection in pre-modern Korean societies. In our recent radiological investigation of a 17th century Joseon mummy discovered in Cheongdo (South Korea), we located a liver mass just below the diaphragm. Anatomical dissection confirmed the presence of a mass of unknown etiology. A subsequent parasitological examination of a sample of the mass revealed a large number of ancient Paragonimus sp...
April 10, 2017: Journal of Parasitology
https://www.readbyqxmd.com/read/28394450/effects-of-presynaptic-muscarinic-receptor-blockade-on-neuromuscular-transmission-as-assessed-by-the-train-of-four-and-the-tetanic-fade-response-to-rocuronium
#19
Yong Beom Kim, Sangseok Lee, Kyeong Cheon Lee, Ha Jung Kim, Young Jin Ro, Hong-Seuk Yang
This study investigated the effect of muscarinic M1 and M2 receptor antagonists on the rocuronium-induced train of four (TOF) fade and tetanic fade, respectively. Ex-vivo phrenic nerves/diaphragms were obtained from adult Sprague-Dawley rats and, stabilized in Krebs buffer, and the nerve-stimulated muscle TOF fade was observed at 20 s intervals. For the TOF study, phrenic nerve/diaphragms were incubated with pirenzepine (an M1 blocker) at concentrations of 0 nM (control), 10 nM (PZP10), or 100 nM (PZP100). Rocuronium was then administered incrementally until the first twitch tension (T1) had depressed by >95% during TOF stimulation...
April 10, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28392962/anti-diabetic-effects-of-an-ethanol-extract-of-cassia-abbreviata-stem-bark-on-diabetic-rats-and-possible-mechanism-of-its-action-anti-diabetic-properties-of-cassia-abbreviata
#20
Keagile Bati, Tebogo Elvis Kwape, Padmaja Chaturvedi
OBJECTIVES: This study aimed to evaluate the hypoglycemic effects of an ethanol extract of Cassia abbreviata (ECA) bark and the possible mechanisms of its action in diabetic albino rats. METHODS: ECA was prepared by soaking the powdered plant material in 70% ethanol. It was filtered and made solvent-free by evaporation on a rotary evaporator. Type 2 diabetes was induced in albino rats by injecting 35 mg/kg body weight (bw) of streptozotocin after having fed the rats a high-fat diet for 2 weeks...
March 2017: Journal of Pharmacopuncture
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