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Muscle rupture

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https://www.readbyqxmd.com/read/29780143/improvement-of-the-left-ventricular-function-after-tricuspid-valve-plasty-for-traumatic-tricuspid-regurgitation
#1
Taiji Okada, Kaori Mogi, Akihiro Endo, Hiroyuki Yoshitomi, Teiji Oda, Kazuaki Tanabe
Traumatic tricuspid regurgitation (TR) is a rare cardiovascular complication in chest trauma. Changes in the left ventricle (LV) function after operation are unclear. A 61-year-old woman who had been involved in a traffic accident 1 month earlier presented with exertional dyspnea. Transthoracic echocardiography (TTE) showed severe tricuspid regurgitation (TR) accompanied by LV dysfunction due to anterior leaflet prolapse with papillary muscle rupture. After tricuspid plasty, the LV function improved, as evidenced by TTE and speckle tracking echocardiography...
May 18, 2018: Internal Medicine
https://www.readbyqxmd.com/read/29779002/developing-a-testing-battery-for-measuring-dogs-stifle-functionality-the-finnish-canine-stifle-index-fcsi
#2
Heli K Hyytiäinen, Sari H Mölsä, Jouni J T Junnila, Outi M Laitinen-Vapaavuori, Anna K Hielm-Björkman
This study aimed at developing a quantitative testing battery for dogs' stifle functionality, as, unlike in human medicine, currently none is available in the veterinary field. Forty-three dogs with surgically treated unilateral cranial cruciate ligament rupture and 21 dogs with no known musculoskeletal problems were included. Eight previously studied tests: compensation in sitting and lying positions, symmetry of thrust in hindlimbs when rising from lying and sitting, static weight bearing, stifle flexion and extension and muscle mass symmetry, were summed into the Finnish Canine Stifle Index (FCSI)...
May 19, 2018: Veterinary Record
https://www.readbyqxmd.com/read/29775430/gene-expression-profile-analysis-of-aortic-vascular-smooth-muscle-cells-reveals-upregulation-of-cadherin-genes-in-myocardial-infarction-patients
#3
Anselm A Derda, Chin Cheng Woo, Thidathip Wongsurawat, Mark Richards, Chuen Neng Lee, Theo Kofidis, Vladimir A Kuznetsov, Vitaly A Sorokin
Myocardial infarction (MI) induced by acute coronary arterial occlusion is usually secondary to atherosclerotic plaque rupture. Dysregulated response of vascular smooth muscle cells (VSMCs) in atherosclerotic plaques may promote plaque rupture. Cadherins (CDHs) form adherens junctions and are known stabilizers of atherosclerotic plaques. To date, the expression patterns of cadherin have not been well investigated in MI aortic VSMCs. We aimed to investigate the expression of cadherin genes in the aortic wall of patients with and without MI...
May 18, 2018: Physiological Genomics
https://www.readbyqxmd.com/read/29771357/a-promotive-effect-for-halofuginone-on-membrane-repair-and-synaptotagmin-7-levels-in-muscle-cells-of-dysferlin-null-mice
#4
Hila Barzilai-Tutsch, Melissa Dewulf, Christophe Lamaze, Gillian Butler Browne, Mark Pines, Orna Halevy
In the absence of dysferlin, skeletal muscle cells fail to reseal properly after injury, resulting in slow progress of the dysferlinopathy muscular dystrophy. Halofuginone, a leading agent in preventing fibrosis in muscular dystrophies, was tested for its effects on membrane resealing post-injury. A hypo-osmotic shock assay on myotubes derived from wild-type and dysferlin-null (dysf-/-) mice revealed that pre-treatment with halofuginone reduces the percentage of membrane-ruptured myotubes only in dysf-/- myotubes...
May 16, 2018: Human Molecular Genetics
https://www.readbyqxmd.com/read/29762114/pectoralis-major-tendon-insertion-anatomy-and-description-of-a-novel-anatomic-reference
#5
Joseph H Dannenbaum, Michael D Eckhoff, Joseph W Galvin, Betsey K Bean, David J Wilson, Edward D Arrington
Pectoralis major rupture is an uncommon injury often treated surgically, requiring anatomic knowledge of the tendon insertion. This study defines the pectoralis major tendon insertion footprint and a novel anatomic relationship. Twelve cadaver shoulders were evaluated andmeasured using a standard surgical ruler to demonstrate the normal anatomic footprint. Measurements were taken from the anterior medial margin of the articular surface of the humeral head to the superior margin of the pectoralis major insertion and its relation to the latissimus dorsi tendon insertion...
2018: Journal of Surgical Orthopaedic Advances
https://www.readbyqxmd.com/read/29754729/-femoral-pseudoaneurysms-in-drug-addicts-about-4-cases
#6
M Ben Hammamia, M Fourati, J Ziadi, F Ghedira, M Ben Mrad, R Denguir
PURPOSE: To describe the therapeutic management of false aneurysms of the femoral artery in drug addicts. PATIENTS AND METHODS: We report the cases of four drug addicts with pseudoaneurysms of the femoral artery. RESULTS: All patients were male with a mean age of 36 years. Emergency surgical treatment involved removal of the pseudoaneurysm followed by a venous graft (n=3) or patch (n=1). The post-operative period was uneventful for three patients...
May 2018: Journal de Médecine Vasculaire
https://www.readbyqxmd.com/read/29753179/endoscopic-achilles-tendon-shortening
#7
T H Lui
Healing in continuity with lengthening of the Achilles tendon is a disabling complication after Achilles tendon rupture. This results in weakness of ankle plantarflexion and a non-propulsive gait on the affected side. The elongated tendon may have to be shortened or reconstructed to re-establish the length and the physiologic tension in triceps surae muscle and allow restoration of push off. This technical note describes the details of endoscopic shortening of the Achilles tendon.
December 29, 2017: Foot
https://www.readbyqxmd.com/read/29749489/effects-of-osteoprotegerin-tnfrsf11b-in-two-models-of-abdominal-aortic-aneurysms
#8
Emina Vorkapic, Anne Kunath, Dick Wågsäter
Osteoprotegerin (OPG), additionally termed tumor necrosis factor receptor superfamily member 11B, is produced by vascular smooth muscle cells (VSMCs) and endothelial cells in the vasculature, and its release may be modulated by pro‑inflammatory cytokines, including interleukin‑1β and tumor necrosis factor‑α. The present study investigated the effects of treatment with low‑dose human recombinant OPG on abdominal aortic aneurysm (AAA) development in mice. Mice were treated with 1 µg human recombinant OPG four times (or vehicle) for 2 weeks prior to inducing AAA...
April 27, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29749311/role-of-the-ldl-receptor-related-protein-1-in-regulating-protease-activity-and-signaling-pathways-in-the-vasculature
#9
Dianaly T Au, Allison L Arai, William E Fondrie, Selen C Muratoglu, Dudley K Strickland
Aortic aneurysms represent a significant clinical problem as they largely go undetected until a rupture occurs. Currently, an understanding of mechanisms leading to aneurysm formation is limited. Numerous studies clearly indicate that vascular smooth muscle cells play a major role in the development and response of the vasculature to hemodynamic changes and defects in these responses can lead to aneurysm formation. The LDL receptor-related protein 1 (LRP1) is major smooth muscle cell receptor that has the capacity to mediate the endocytosis of numerous ligands and to initiate and regulate signaling pathways...
May 11, 2018: Current Drug Targets
https://www.readbyqxmd.com/read/29742000/haemoproteus-parahaemoproteus-spp-in-captive-bred-bobwhite-quail-colinus-virginianus-in-southern-utah-usa
#10
E Jane Kelly, Thomas J Baldwin, David D Frame, April L Childress, James F X Wellehan
A captive-bred Bobwhite Quail ( Colinus virginianus) ranch in southern Utah experienced high mortality rates in the late summer and fall of 2012. Nine juvenile birds were necropsied at the Utah Veterinary Diagnostic Laboratory. Gross lesions included pale skeletal muscle with multifocal hemorrhages and petechiae in the air sacs and serosal surfaces of most organs. Histologically there was moderate to severe, multifocal, degenerative myositis with intramyofiber schizonts and minimal lymphoplasmacytic infiltrates in the proventriculus, ventriculus, heart, and skeletal muscle...
May 9, 2018: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/29733328/valve-repair-for-tricuspid-papillary-muscle-rupture-late-after-percutaneous-coronary-intervention
#11
Shinji Kanemitsu, Shunsuke Sakamoto, Naoki Yamamoto, Hideto Shimpo
Papillary muscle rupture is a rare complication after myocardial infarction. Almost all cases occur in the papillary muscle of the mitral valve. The development of tricuspid regurgitation after right ventricular myocardial infarction caused by papillary muscle rupture is extremely rare. We present a 70-year-old man with massive tricuspid regurgitation caused by papillary muscle rupture after percutaneous coronary intervention to the right coronary artery involving a stent. We performed tricuspid valve repair with a reimplanted papillary muscle in situ using neither artificial chordae nor a prosthetic valve...
May 3, 2018: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29732374/chinese-herbal-medicine-as-a-potential-treatment-of-abdominal-aortic-aneurysm
#12
Sai Wang Seto, Dennis Chang, Hosen Kiat, Ning Wang, Alan Bensoussan
Abdominal aortic aneurysm (AAA) is an irreversible condition where the abdominal aorta is dilated leading to potentially fatal consequence of aortic rupture. Multiple mechanisms are involved in the development and progression of AAA, including chronic inflammation, oxidative stress, vascular smooth muscle (VSMC) apoptosis, immune cell infiltration and extracellular matrix (ECM) degradation. Currently surgical therapies, including minimally invasive endovascular aneurysm repair (EVAR), are the only viable interventions for AAAs...
2018: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/29727918/the-inoss-study-of-uterine-rupture-a-descriptive-multi-country-population-based-study
#13
Griet Vandenberghe, Kitty Bloemenkamp, Silvia Berlage, Lotte Colmorn, Catherine Deneux-Tharaux, Mika Gissler, Marian Knight, Jens Langhoff-Roos, Pelle G Lindqvist, Willi Oberaigner, Jos Van Roosmalen, Joost Zwart, Kristien Roelens
OBJECTIVE: International comparison of complete uterine rupture. DESIGN: Descriptive multi-country population-based study. SETTING: International. POPULATION: International Network of Obstetric Survey Systems (INOSS). METHODS: We merged individual data, collected prospectively in nine population-based studies, of women with complete uterine rupture, defined as complete disruption of the uterine muscle and the uterine serosa, regardless of symptoms and rupture of fetal membranes...
May 4, 2018: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/29719532/vasa-vasorum-angiogenesis-key-player-in-the-initiation-and-progression-of-atherosclerosis-and-potential-target-for-the-treatment-of-cardiovascular-disease
#14
REVIEW
Daniel G Sedding, Erin C Boyle, Jasper A F Demandt, Judith C Sluimer, Jochen Dutzmann, Axel Haverich, Johann Bauersachs
Plaque microvascularization and increased endothelial permeability are key players in the development of atherosclerosis, from the initial stages of plaque formation to the occurrence of acute cardiovascular events. First, endothelial dysfunction and increased permeability facilitate the entry of diverse inflammation-triggering molecules and particles such as low-density lipoproteins into the artery wall from the arterial lumen and vasa vasorum (VV). Recognition of entering particles by resident phagocytes in the vessel wall triggers a maladaptive inflammatory response that initiates the process of local plaque formation...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29718300/myeloperoxidase-associates-with-degenerative-remodeling-and-rupture-of-the-saccular-intracranial-aneurysm-wall
#15
Eliisa Ollikainen, Riikka Tulamo, Satu Lehti, Juha Hernesniemi, Mika Niemelä, Petri T Kovanen, Juhana Frösen
Rupture of a saccular intracranial aneurysm (sIA) is often fatal. Thus, early detection of rupture-prone sIAs is vital. Myeloperoxidase (MPO), derived mainly from neutrophils, associates with sIA rupture, and therefore its role in sIA pathogenesis warrants further studies. We analyzed MPO and its association with other histological markers in 36 (16 unruptured and 20 ruptured) sIA samples by immunohistochemistry. MPO was present in all studied sIAs, and its expression associated with wall inflammatory cell infiltrations (r = 0...
April 28, 2018: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/29712757/defective-flux-of-thrombospondin-4-through-the-secretory-pathway-impairs-cardiomyocyte-membrane-stability-and-causes-cardiomyopathy
#16
Matthew J Brody, Davy Vanhoutte, Tobias G Schips, Justin G Boyer, Chinmay V Bakshi, Michelle A Sargent, Allen J York, Jeffery D Molkentin
Thrombospondins are stress-inducible secreted glycoproteins with critical functions in tissue injury and healing. Thrombospondin-4 (Thbs4) is protective in cardiac and skeletal muscle where it activates an adaptive endoplasmic reticulum (ER) stress-response, induces expansion of the ER, and enhances sarcolemmal stability. However, it is unclear if Thbs4 has these protective functions from within the cell, from the extracellular matrix, or from the secretion process itself. Here we generated transgenic mice with cardiac-specific overexpression of a secretion-defective mutant of Thbs4 to evaluate its exclusive intracellular and secretion-dependent functions...
April 30, 2018: Molecular and Cellular Biology
https://www.readbyqxmd.com/read/29706737/a-rare-case-of-triceps-brachii-injury-after-electrocution
#17
Debora Lana, Luigi Tarallo, Fabio Catani
Injuries of the triceps brachii muscle are a rare entity and mostly concern its distal tendon. These represent the least common of all muscle and tendons injuries. The most common reported causes are repeated strong physical efforts, a fall on an outstretched forearm when a sudden deceleration is put on contract triceps, or a direct trauma. High-dosed and prolonged corticosteroid therapies, repeated local steroid injections, chronic renal failure, diabetes, rheumatoid arthritis, hyperparathyroidism, and osteogenesis imperfecta are reported as systemic causes...
April 2018: Journal of Hand and Microsurgery
https://www.readbyqxmd.com/read/29703029/attrition-rupture-of-ulnar-nerve-in-a-patient-with-rheumatoid-elbow-arthritis-a-case-report
#18
Ayaka Kaneko, Yoichi Sugiyama, Nana Nagura, Kenji Goto, Yoshiyuki Iwase, Osamu Obayashi, Kiyohito Naito, Kazuo Kaneko
RATIONALE: Cubital tunnel syndrome has been recognized as a common pathology in rheumatoid arthritis (RA) of the elbow. We encountered a patient with RA of the elbow showing attrition rupture of the ulnar nerve. This pathology is extremely rare, and we discussed preventive measures for similar cases in the future based on our case. PATIENT CONCERNS: A 53-year-old woman, received drug treatment for RA since 30 years earlier, had numbness in the left ulnar nerve territory, dorsal interossei muscle atrophy, and resulting claw hand...
April 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29701103/results-of-primary-repair-of-distal-triceps-tendon-ruptures-in-a-general-population
#19
G Giannicola, G Bullitta, R Rotini, L Murena, D Blonna, M Iapicca, G Restuccia, G Merolla, M Fontana, A Greco, M Scacchi, G Cinotti
Aims The aim of the study was to analyze the results of primary tendon reinsertion in acute and chronic distal triceps tendon ruptures (DTTRs) in the general population. Patients and Methods A total of 28 patients were operated on for primary DTTR reinsertions, including 21 male patients and seven female patients with a mean age of 45 years (14 to 76). Of these patients, 23 sustained an acute DTTR and five had a chronic injury. One patient had a non-simultaneous bilateral DTTR. Seven patients had DTTR-associated ipsilateral fracture or dislocation...
May 1, 2018: Bone & Joint Journal
https://www.readbyqxmd.com/read/29698929/characterisation-of-human-urethral-rupture-thresholds-for-urinary-catheter-inflation-related-injuries
#20
N F Davis, E M Cunnane, R O 'c Mooney, J Hess, M T Walsh
Data on urethral catheter related injuries is sparse. In this study we aimed to characterise urethral diametric strain and urinary catheter inflation pressure thresholds that precede human urethral trauma during urethral catheterisation (UC). Human urethras were obtained from patients undergoing male to female gender reassignment surgery [(n = 9; age 40 ± 13.13 (range: 18-58)) years]. 12Fr urinary catheters were secured in the bulbar urethra and the catheter's anchoring balloon was inflated with a syringe pump apparatus...
April 19, 2018: Journal of the Mechanical Behavior of Biomedical Materials
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