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Myonecrosis

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https://www.readbyqxmd.com/read/28088107/gaas-laser-therapy-reestablishes-the-morphology-of-the-nmj-and-nachrs-after-injury-due-to-bupivacaine
#1
Cristiane Neves Alessi Pissulin, Paula Aiello Tomé de Souza Castro, Flávio Codina, Carina Guidi Pinto, Ivan Jose Vechetti-Junior, Selma Maria Michelin Matheus
BACKGROUND: Local anesthetics are used to relieve pre- and postoperative pain, acting on both sodium channels and nicotinic acetylcholine receptors (nAChR) at the neuromuscular junction (NMJ). Bupivacaine acts as a non-competitive antagonist and has limitations, such as myotoxicity, neurotoxicity, and inflammation. Low-level laser therapy (LLLT) has anti-inflammatory, regenerative, and analgesic effects. The aim of the present study was to evaluate the effects of a gallium arsenide laser (GaAs) on the morphology of the NMJ and nAChRs after application of bupivacaine in the sternomastoid muscle...
December 22, 2016: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28074044/diabetic-myonecrosis-a-rare-complication-of-diabetes-mellitus-mimicking-deep-vein-thrombosis
#2
Himanshu K Khanna, Andrew C Stevens
BACKGROUND Diabetic myonecrosis is an uncommon complication of long-standing poorly controlled diabetes mellitus. It presents as acute non-traumatic swelling and pain of the lower extremity, which can mimic deep vein thrombosis (DVT). The clinical course is usually self-limiting and patients respond well to supportive medical therapy. CASE REPORT A 54-year-old male with past medical history of poorly controlled diabetes mellitus type II, hyperlipidemia, gastroesophageal reflux disease (GERD), and remote history of DVT presented to our emergency department with 2-week history of progressively worsening left calf pain and swelling...
January 11, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28070882/effect-of-a-180-mg-ticagrelor-loading-dose-on-myocardial-necrosis-in-patients-undergoing-elective-percutaneous-coronary-intervention-a-preliminary-study
#3
QuanFu Xu, YingGang Sun, Yi Zhang, Bo Liu, Lu Fang, ChengXing Shen, YiGang Li, Shu Meng
BACKGROUND: To examine whether a loading dose of ticagrelor on top of clopidogrel reduced post-percutaneous coronary intervention (PCI) myonecrosis. METHODS: Seventy seven coronary artery disease patients received a loading dose of 300 mg clopidogrel pre-PCI and were divided into three groups: group TT (n = 36): a loading dose of 180 mg ticagrelor pre-PCI, followed by ticagrelor 90 mg twice daily commencing one day post-PCI; group CT (n = 26): a maintenance dose of ticagrelor 90 mg twice daily; group CC (n = 15): clopidogrel 75 mg daily post-PCI...
January 10, 2017: Cardiology Journal
https://www.readbyqxmd.com/read/28040057/the-effects-of-mebudipine-on-myocardial-arrhythmia-induced-by-ischemia-reperfusion-injury-in-isolated-rat-heart
#4
R Ghiasi, M Mohammadi, M Majidinia, B Yousefi, A Ghiasi, R Badalzadeh
Reperfusion of the heart after an ischemic insult may lead to potentially lethal arrhythmias and cardimyocyte cell death via apoptosis and necrosis. In addition, previous studies showed that calcium channel blockers may have a protective role in the myocardium against arrhythmia and irreversible tissue injury. Therefore, this study was aimed to investigate the effects of mebudipine on myocardial arrhythmias and tissue injury induced by ischemia/reperfusion injury in isolated rat hearts. Male Wistar rats (250‑300g) were randomly divided to Sham group (without ischemia), control group (ischemia without drug), drug group (ischemia with mebudipine 0...
November 30, 2016: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/27969829/tct-45-five-year-mortality-predictors-after-provisional-t-stenting-in-coronary-bifurcation-lesions-with-intracoronary-electrocardiogram-change-defined-strategy-from-intracoronary-electrocardiogram-ecg-and-myonecrosis-after-bifurcation-stenting-cosibria-co
#5
Dobrin Vassilev, Kiril Karamfiloff, Liubomir Dosev, Jivka Stoykova, Ralitsa Pancheva, Galina Zlatancheva, Monika Shumkova, Dobrin Svinarov, Adelina Cakova, Gianluca Rigatelli, Robert Gil
No abstract text is available yet for this article.
November 1, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27969667/tct-319-side-branch-mortality-score-for-prediction-of-five-year-mortality-after-provisional-side-branch-coronary-bifurcation-stenting-a-new-tool-based-on-intracoronary-electrocardiogram-iecg-from-iecg-and-myonecrosis-after-bifurcation-stenting-cosibria-co
#6
Dobrin Vassilev, Kiril Karamfiloff, Liubomir Dosev, Jivka Stoykova, Vladimir Naunov, Ralitsa Pancheva, Galina Zlatancheva, Monika Shumkova, Dobrin Svinarov, Adelina Cakova, Gianluca Rigatelli, Robert Gil
No abstract text is available yet for this article.
November 1, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27955822/febuxostat-associated-eosinophilic-polymyositis-in-marginal-zone-lymphoma
#7
Georges Chahine, Khalil Saleh, Claude Ghorra, Nathalie Khoury, Nadine Khalife, Fouad Fayad
Febuxostat is an orally administered selective inhibitor of xanthine oxidase approved for the treatment of gout and prevention of tumor lysis syndrome. It is a relatively safe medication. Hypersensitivity reactions associated with the use of febuxostat are quite rare with only one reported case of DRESS syndrome. Recently, two case reports of rhabdomyolysis following the initiation of febuxostat were published. We hereby present the first case of rhabdomyolysis with hypereosinophilia following the administration of febuxostat to a 50-year-old patient newly diagnosed with marginal zone lymphoma...
December 7, 2016: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/27920874/leiomyoma-of-deep-soft-tissue-mimicking-calcific-myonecrosis
#8
Valerie A Fitzhugh, Cornelia Wenokor, Kathleen S Beebe, Seena C Aisner
Leiomyoma of deep soft tissue is an unusual entity reported in less than 60 cases in the English literature. The lesion is now accepted as a rare neoplasm. Leiomyomata of deep soft tissue have been divided into 2 groups, those occurring primarily in women in the retroperitoneum, histologically similar to leiomyomata of the uterus, and those occurring equally in both sexes in the somatic deep soft tissues. Irrespective of location, these lesions can demonstrate calcification, and even less commonly ossification...
December 2016: Radiology case reports
https://www.readbyqxmd.com/read/27920709/shoulder-pain-after-fall-septic-shock-and-pyomyositis-associated-with-breast-cancer-chemotherapy-and-lymphedema
#9
Hiromitsu Kitayama, Junko Sugiyama, Michiaki Hirayama, Yosihiro Onada, Yasushi Tsuji
BACKGROUND: As a symptom of pyomyositis, sepsis usually follows local inflammation signs. Here, we report pyomyositis with lymphedema of upper extremity in which septic shock and poor local findings initially presented during chemotherapy for breast cancer. CASE REPORT: An 80-year-old woman presented with chronic right shoulder pain during chemotherapy for the recurrent disease. She had a history of postmastectomy lymphedema, diabetes mellitus, and repeated hyaluronic acid injections to the shoulder joint...
September 2016: Case Reports in Oncology
https://www.readbyqxmd.com/read/27884244/should-we-measure-biomarkers-for-myonecrosis-before-and-after-pci
#10
EDITORIAL
Sorin J Brener
No abstract text is available yet for this article.
November 29, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27875493/acute-lumbar-paraspinal-myonecrosis-in-football-players-with-sickle-cell-trait-a-case-series
#11
E Randy Eichner, Brock Schnebel, Scott Anderson, James R Clugston, Heath Hale, Charlie Michaudet, John M Small
We report 6 cases of a novel syndrome of acute, exertional low back pain (LBP) in football players, 5 in college and one in the National Football League (NFL). All 6 are African-Americans with sickle cell trait (SCT). The acute LBP is severe and can be disabling, and the condition can be confused with muscle strain, discogenic pain, stress fracture, or other problems in athletes. Our evidence shows that this syndrome is caused by lumbar paraspinal myonecrosis (LPSMN), which likely often contributes to the lumbar paraspinal compartment syndrome...
November 21, 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27869757/clostridium-perfringens-sialidases-potential-contributors-to-intestinal-pathogenesis-and-therapeutic-targets
#12
REVIEW
Jihong Li, Francisco A Uzal, Bruce A McClane
Clostridium perfringens is a major cause of histotoxic and intestinal infections of humans and other animals. This Gram-positive anaerobic bacterium can produce up to three sialidases named NanH, NanI, and NanJ. The role of sialidases in histotoxic infections, such as gas gangrene (clostridial myonecrosis), remains equivocal. However, recent in vitro studies suggest that NanI may contribute to intestinal virulence by upregulating production of some toxins associated with intestinal infection, increasing the binding and activity of some of those toxins, and enhancing adherence of C...
November 19, 2016: Toxins
https://www.readbyqxmd.com/read/27777864/macrobrachium-rosenbergii-nodavirus-infection-in-a-giant-freshwater-prawn-hatchery-in-indonesia
#13
Murwantoko Murwantoko, Arif Bimantara, Roosmanto Roosmanto, Masashi Kawaichi
A pathogen of giant freshwater prawn, Macrobrachium rosenbergii, was recently recorded in a hatchery in Yogyakarta. The clinical symptom in post-larvae (PL) was a whitish appearance of the muscles in the tail. Histological examination revealed myonecrosis with massive infiltration of myonuclei and hemocytes. RT-PCR products of 850 bp were obtained when using RNA from diseased PL as a template. The clinical signs and RT-PCR amplicon were reproduced in M. rosenbergii inoculated with bacteria-free inocula. Electron microscopy demonstrated that the M...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27720976/efficient-muscle-regeneration-after-highly-haemorrhagic-bothrops-alternatus-venom-injection
#14
María Emilia Garcia Denegri, Gladys P Teibler, Silvana L Maruñak, David R Hernández, Ofelia C Acosta, Laura C Leiva
Bothrops alternatus snake venom is particularly characterized for inducing a prominent haemorrhage and affecting hemostasis as a consequence of 43.1% of metallo-proteinases and less than 10% of PLA2 (almost all non-myotoxic phospholipases) in its venomics. In addition, myonecrosis is the major local effect in viper envenoming which might lead to permanent sequela. Then, the rebuilding of the microvasculature at the local injured site acquires significance since represents one of the pivotal stages for subsequent skeletal muscle regeneration either at morphological or functional aspects...
November 2016: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/27699456/diagnosis-and-management-of-skin-and-soft-tissue-infections-in-the-intensive-care-unit-a-review
#15
Jason P Burnham, John P Kirby, Marin H Kollef
PURPOSE: To review the salient features of the diagnosis and management of the most common skin and soft tissue infections (SSTI). This review focuses on severe SSTIs that require care in an intensive care unit (ICU), including toxic shock syndrome, myonecrosis/gas gangrene, and necrotizing fasciitis. METHODS: Guidelines, expert opinion, and local institutional policies were reviewed. RESULTS: Severe SSTIs are common and their management complex due to regional variation in predominant pathogens and antimicrobial resistance patterns, as well as variations in host immune responses...
October 3, 2016: Intensive Care Medicine
https://www.readbyqxmd.com/read/27637108/the-neat-domain-containing-proteins-of-clostridium-perfringens-bind-heme
#16
Jocelyn M Choo, Jackie K Cheung, Jessica A Wisniewski, David L Steer, Dieter M Bulach, Thomas J Hiscox, Anjana Chakravorty, A Ian Smith, David A Gell, Julian I Rood, Milena M Awad
The ability of a pathogenic bacterium to scavenge iron from its host is important for its growth and survival during an infection. Our studies on C. perfringens gas gangrene strain JIR325, a derivative of strain 13, showed that it is capable of utilizing both human hemoglobin and ferric chloride, but not human holo-transferrin, as an iron source for in vitro growth. Analysis of the C. perfringens strain 13 genome sequence identified a putative heme acquisition system encoded by an iron-regulated surface gene region that we have named the Cht (Clostridium perfringens heme transport) locus...
2016: PloS One
https://www.readbyqxmd.com/read/27635157/case-report-role-of-bedside-ultrasonography-in-early-diagnosis-of-myonecrosis-rapidly-developed-in-deep-soft-tissue-infections
#17
Americo Testa, Rosangela Giannuzzi, Valeria De Biasio
BACKGROUND: Myonecrosis can rapidly develop in soft tissue necrotizing infections, often with initial sparing of the skin. Despite the improvements in management of necrotizing soft tissue infections, mortality remains high, according to the location, microbial agents and comorbidities, ranging between 17 and 46 %. A prompt diagnosis represents the greatest challenge for the emergency physician. CASE REPORT: We describe the case of a patient with a history of hypertension and arrhythmia who developed nonclostridial necrotizing fasciitis with extensive myonecrosis, after articular infiltration procedure...
September 2016: Journal of Ultrasound
https://www.readbyqxmd.com/read/27617683/recurrent-diabetic-muscle-infarction-presenting-with-painful-thigh-swellings-simulating-recurrent-deep-venous-thrombosis
#18
S M Momany, M Ayesh, H Z Omari
Atraumatic painful swollen lower extremity has limited differential diagnosis and in patients with risk factors for venous thromboembolism offers little challenge. Poor awareness of rare entities results in misdiagnosis and mismanagement. Diabetic muscle infarction is a rare complication of longstanding uncontrolled diabetes mellitus causing ischaemic skeletal myonecrosis and similar presentation.
November 4, 2015: West Indian Medical Journal
https://www.readbyqxmd.com/read/27616740/the-infectious-particle-of-insect-borne-totivirus-like-omono-river-virus-has-raised-ridges-and-lacks-fibre-complexes
#19
Kenta Okamoto, Naoyuki Miyazaki, Daniel S D Larsson, Daisuke Kobayashi, Martin Svenda, Kerstin Mühlig, Filipe R N C Maia, Laura H Gunn, Haruhiko Isawa, Mutsuo Kobayashi, Kyoko Sawabe, Kazuyoshi Murata, Janos Hajdu
Omono River virus (OmRV) is a double-stranded RNA virus isolated from Culex mosquitos, and it belongs to a group of unassigned insect viruses that appear to be related to Totiviridae. This paper describes electron cryo-microscopy (cryoEM) structures for the intact OmRV virion to 8.9 Å resolution and the structure of the empty virus-like-particle, that lacks RNA, to 8.3 Å resolution. The icosahedral capsid contains 120-subunits and resembles another closely related arthropod-borne totivirus-like virus, the infectious myonecrosis virus (IMNV) from shrimps...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27590117/bothrops-fonsecai-snake-venom-activities-and-cross-reactivity-with-commercial-bothropic-venom
#20
Rita de Cássia O Collaço, Priscila Randazzo-Moura, Mariana L Tamascia, Igor Rapp F da Silva, Thalita Rocha, José C Cogo, Stephen Hyslop, Charles G Sanny, Léa Rodrigues-Simioni
In this work, we examined some biochemical and biological activities of Bothrops fonsecai venom, a pitviper endemic to southeastern Brazil, and assessed their neutralization by commercial bothropic antivenom (CAv). Cross-reactivity of venom with CAv was also assessed by immunoblotting and size-exclusion high performance chromatography (SE-HPLC). Bothrops fonsecai venom had PLA2, proteolytic and esterase activities that were neutralized to varying extents by venom:antivenom ratios of 5:1 and 5:2 (PLA2 and esterase activities) or not significantly by either venom:antivenom ratio (proteolytic activity)...
January 2017: Comparative Biochemistry and Physiology. Toxicology & Pharmacology: CBP
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