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https://www.readbyqxmd.com/read/28743098/giant-fibro-epithelial-polyp-in-a-young-girl-a-rare-case-report
#1
Anil Kumar, Nadia Hasin, Amit Kumar Sinha, Subhash Kumar, Punam Bhadani
INTRODUCTION: Fibro epithelial Polyp (FEP) is a polypoid outgrowth of epidermis and dermal fibro vascular tissue. This polyp is most commonly found in oral cavity, neck and axilla, though any skin fold may be affected like groin. These polyps are usually less than 5cm in size and rarely occur before 4th decade of life. Excision is the treatment of choice for such lesion. PRESENTATION OF CASE: A 20year old female patient presented with a large pedunculated mass originating from the left groin area extending up to the left knee joint...
July 15, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28742087/type-1-skewed-neuroinflammation-and-vascular-damage-associated-with-orientia-tsutsugamushi-infection-in-mice
#2
Lynn Soong, HeThomas R Shelite, Yan Xing, Harica Kodakandla, Yuejin Liang, Brandon J Trent, Paulina Horton, Kathryn C Smith, Zhenyang Zhao, Jiaren Sun, Donald H Bouyer, Jiyang Cai
BACKGROUND: Scrub typhus is a life-threatening disease, due to infection with O. tsutsugamushi, a Gram-negative bacterium that preferentially replicates in endothelial cells and professional phagocytes. Meningoencephalitis has been reported in scrub typhus patients and experimentally-infected animals; however, the neurological manifestation and its underlying mechanisms remain poorly understood. To address this issue, we focused on Orientia tsutsugamushi Karp strain (OtK), and examined host responses in the brain during lethal versus self-healing scrub typhus disease in our newly established murine models...
July 24, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28739472/toll-like-receptor-4-signaling-improved-the-migration-of-sca-1-stem-progenitor-cells
#3
Ying Huang, Chunya Zhang, Jinghua Shen, Xiaogang Zhang, Jianqing Du, Daifu Zhang
Atherosclerosis is considered as a chronic inflammatory process, during which macrophages and smooth muscle cells migrate into the vascular wall intima to initiate atherogenesis. Stem/progenitor cells (SPCs) have been demonstrated as a new source of monocytes/macrophages and smooth muscle cells (SMCs). However, the regulation of SPCs migration into atherosclerotic initiation sites to produce macrophages and SMCs in-situis not fully elucidated. As toll-like receptor (TLRs) signaling plays essential role in migration of immunocytes, we wanted to explore the expression and function of TLRs in SPCs in detail...
July 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28739342/a-pro-inflammatory-function-of-toll-like-receptor-2-in-the-retinal-pigment-epithelium-as-a-novel-target-for-reducing-choroidal-neovascularization-in-age-related-macular-degeneration
#4
Lili Feng, Meihua Ju, Kei Ying Vivian Lee, Ashley Mackey, Mariasilvia Evangelista, Daiju Iwata, Peter Adamson, Kameran Lashkari, Richard Foxton, David Shima, Yin Shan Ng
Current treatments for choroidal neovascularization, a major cause of blindness for patients with age-related macular degeneration, treat symptoms but not the underlying causes of the disease. Inflammation has been strongly implicated in the pathogenesis of choroidal neovascularization. We examined the inflammatory role of toll-like receptor 2 (TLR2) in age-related macular degeneration. TLR2 was robustly expressed by the retinal pigment epithelium in mouse and human eyes, both normal and with macular degeneration/choroidal neovascularization...
July 21, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28739168/adipose-derived-stem-cell-spheroid-treated-with-low-level-light-irradiation-accelerates-spontaneous-angiogenesis-in-mouse-model-of-hindlimb-ischemia
#5
In-Su Park, Phil-Sang Chung, Jin Chul Ahn
BACKGROUND AIMS: We investigated whether low-level light irradiation (LLLI) before adipose-derived stromal cells (ASCs) spheroid transplantation improved hind-limb functional recovery by stimulation of angiogenesis. METHODS: The spheroid, composed of ASCs, was irradiated with low-level light and expressed angiogenic factors, including vascular endothelial growth factor and basic fibroblast growth factor. From immunochemical staining analysis, the spheroid of ASCs included CD31(+), KDR(+) and CD34(+), whereas monolayer-cultured ASCs were negative for these markers...
July 21, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28738862/impact-of-ischemic-preconditioning-on-surgical-treatment-of-brain-tumors-a-single-center-randomized-double-blind-controlled-trial
#6
Arthur H A Sales, Melanie Barz, Stefanie Bette, Benedikt Wiestler, Yu-Mi Ryang, Bernhard Meyer, Martin Bretschneider, Florian Ringel, Jens Gempt
BACKGROUND: Postoperative ischemia is a frequent phenomenon in patients with brain tumors and is associated with postoperative neurological deficits and impaired overall survival. Particularly in the field of cardiac and vascular surgery, the application of a brief ischemic stimulus not only in the target organ but also in remote tissues can prevent subsequent ischemic damage. We hypothesized that remote ischemic preconditioning (rIPC) in patients with brain tumors undergoing elective surgical resection reduces the incidence of postoperative ischemic tissue damage and its consequences...
July 25, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28738134/indocyanine-green-angiography-and-optical-coherence-tomography-angiography-of-choroidal-neovascularization-in-age-related-macular-degeneration
#7
Chiara M Eandi, Antonio Ciardella, Mariacristina Parravano, Filippo Missiroli, Camilla Alovisi, Chiara Veronese, Maria C Morara, Massimo Grossi, Gianni Virgili, Federico Ricci
Purpose: To compare the capability of indocyanine green angiography (ICGA) and optical coherence tomography angiography (OCTA) in detecting choroidal neovascularization (CNV). Methods: In this prospective study, patients with CNV detected with fluorescein angiography (FA) underwent ICGA and OCTA, spectral domain OCT (SD-OCT), and infrared or fundus color photographs. CNV lesions were outlined on ICGA and OCTA images, and the composition and size of the CNV was documented...
July 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28736671/noninvasive-in-vivo-monitoring-of-collagenase-induced-intracerebral-hemorrhage-by-photoacoustic-tomography
#8
Dan Wu, Jinge Yang, Guang Zhang, Huabei Jiang
Photoacoustic tomography (PAT) is an emerging noninvasive biomedical imaging modality that can be used for visualizing the structure and function of brain in high resolution. Here we report an application of PAT to imaging intracerebral hemorrhage (ICH) in a mouse model. In vivo photoacoustic images were obtained in mice with right basal ganglia hemorrhage induced by microinjection of collagenase. With multi-spectral light excitation, cortical vascular network was clearly revealed at 532 nm, and ICH associated hematoma lesions and perihemmatoma regions were accurately mapped over time at 750 nm and 875 nm, respectively...
April 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28735345/large-facial-lymphatic-malformation-treatment-using-sclerosing-agent-followed-by-surgical-resection-clinical-and-pathology-report
#9
Amir Laviv, Alexander Maly, Jawad Abu-Tair
Lymphatic malformations are rare slow-flow vascular malformations, with high tendency to appear in the head and neck region. The treatment of these lesions ranges from follow-up to sclerosing agent injection to surgical excision. The authors present a case of a new born with large extensive lingual and submandibular lymphatic malformation, for which the patient underwent tracheostomy and gastrostomy insertion. He was then treated successfully with sclerosing agent injections followed by surgical excision, with 7 years follow-up...
July 22, 2017: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28735290/membrane-tethered-metalloproteinase-expressed-by-vascular-smooth-muscle-cells-limits-the-progression-of-proliferative-atherosclerotic-lesions
#10
Richard H Barnes, Takeshi Akama, Miina K Öhman, Moon-Sook Woo, Julian Bahr, Stephen J Weiss, Daniel T Eitzman, Tae-Hwa Chun
BACKGROUND: The MMP (matrix metalloproteinase) family plays diverse and critical roles in directing vascular wall remodeling in atherosclerosis. Unlike secreted-type MMPs, a member of the membrane-type MMP family, MT1-MMP (membrane-type 1 MMP; MMP14), mediates pericellular extracellular matrix degradation that is indispensable for maintaining physiological extracellular matrix homeostasis. However, given the premature mortality exhibited by MT1-MMP-null mice, the potential role of the proteinase in atherogenesis remains elusive...
July 22, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28734923/diagnostic-accuracy-of-coronary-ct-angiography-for%C3%A2-the-evaluation-of-bioresorbable-vascular-scaffolds
#11
Carlos Collet, Bernard Chevalier, Angel Cequier, Jean Fajadet, Marcello Dominici, Steffen Helqvist, A J Van Boven, Dariusz Dudek, Dougal McClean, Manuel Almeida, Jan J Piek, Erhan Tenekecioglu, Antonio Bartorelli, Stephan Windecker, Patrick W Serruys, Yoshinobu Onuma
OBJECTIVES: To assess the diagnostic accuracy of coronary computed tomography angiography (CTA) for bioresorbable vascular scaffold (BVS) evaluation. BACKGROUND: Coronary CTA has emerged as a noninvasive method to evaluate patients with suspected or established coronary artery disease. The diagnostic accuracy of coronary CTA to evaluate angiographic outcomes after BVS implantation has not been well established. METHODS: In the ABSORB II (A Bioresorbable Everolimus-Eluting Scaffold Versus a Metallic Everolimus-Eluting Stent II) study, patients were randomized either to receive treatment with the BVS or everolimus-eluting metallic stent...
July 13, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28734811/treatment-na%C3%A3-ve-quiescent-choroidal-neovascularization-in-geographic-atrophy-secondary-to-non-exudative-age-related-macular-degeneration
#12
Vittorio Capuano, Alexandra Miere, Lea Querques, Riccardo Sacconi, Adriano Carnevali, Francesca Amoroso, Francesco Bandello, Eric H Souied, Giuseppe Querques
PURPOSE: To describe the characteristics and natural history of quiescent choroidal neovascularization (CNV) in geographic atrophy (GA) secondary to non-exudative age-related macular degeneration (AMD) through multimodal imaging. DESIGN: Retrospective observational case series. METHODS: Patients diagnosed with quiescent CNV were analyzed in two high-volume referral centers. Imaging features obtained using fluorescein angiography (FA), indocyanine green angiography (ICGA), structural optical-coherence-tomography (OCT), and OCT-Angiography (OCT-A) were noted at first presentation and during the study period...
July 19, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28734155/activation-of-mtor-is-involved-in-anti-%C3%AE-2gpi-%C3%AE-2gpi-induced-expression-of-tissue-factor-and-il-8-in-monocytes
#13
Longfei Xia, Hong Zhou, Ting Wang, Yachao Xie, Ting Wang, Xiaoyan Wang, Jinchuan Yan
Previous study has demonstrated that activation of the mammalian target of rapamycin (mTOR) pathway in endothelial cells (ECs) results in the formation of chronic vascular lesions associated with antiphospholipid syndrome (APS). In addition, it has been shown that stimulation of monocytes and ECs by antiphospholipid antibodies (aPL) leads to a prothrombotic and proinflammatory state and up-regulated expression of tissue factor (TF) and inflammatory cytokines. However, the role of mTOR in pathogenic mechanisms of APS remains largely unexplored...
June 1, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28732815/2-year-outcomes-with-the-absorb-bioresorbable-scaffold-for-treatment-of-coronary-artery-disease-a-systematic-review-and-meta-analysis-of-seven-randomised-trials-with-an-individual-patient-data-substudy
#14
Ziad A Ali, Patrick W Serruys, Takeshi Kimura, Runlin Gao, Stephen G Ellis, Dean J Kereiakes, Yoshinobu Onuma, Charles Simonton, Zhen Zhang, Gregg W Stone
BACKGROUND: Bioresorbable vascular scaffolds (BVS) offer the potential to improve long-term outcomes of percutaneous coronary intervention after their complete bioresorption. Randomised trials have shown non-inferiority between BVS and metallic drug-eluting stents at 1 year in composite safety and effectiveness outcomes, although some increases in rates of target vessel-related myocardial infarction and device thrombosis were identified. Outcomes of BVS following the first year after implantation are unknown...
July 18, 2017: Lancet
https://www.readbyqxmd.com/read/28732392/systematic-assessment-with-i-scan-magnification-endoscopy-and-acetic-acid-improves-dysplasia-detection-in-patients-with-barrett-s-esophagus
#15
Gideon Lipman, Raf Bisschops, Vinay Sehgal, Jacobo Ortiz-Fernández-Sordo, Rami Sweis, Jose M Esteban, Rifat Hamoudi, Matthew R Banks, Krish Ragunath, Laurence B Lovat, Rehan J Haidry
Background and study aims Enhanced endoscopic imaging with chromoendoscopy may improve dysplasia recognition in patients undergoing assessment of Barrett's esophagus (BE). This may reduce the need for random biopsies to detect more dysplasia. The aim of this study was to assess the effect of magnification endoscopy with I-SCAN (Pentax, Tokyo, Japan) and acetic acid (ACA) on dysplasia detection in BE using a novel mucosal and vascular classification system. Methods BE segments and suspicious lesions were recorded with high definition white-light and magnification endoscopy enhanced using all I-SCAN modes in combination...
July 21, 2017: Endoscopy
https://www.readbyqxmd.com/read/28731396/contralateral-posterior-interhemispheric-approach-to-deep-medial-parietooccipital-vascular-malformations-surgical-technique-and-results
#16
Jan-Karl Burkhardt, Ethan A Winkler, Michael T Lawton
OBJECTIVE Deep medial parietooccipital arteriovenous malformations (AVMs) and cerebral cavernous malformations (CCMs) are traditionally resected through an ipsilateral posterior interhemispheric approach (IPIA), which creates a deep, perpendicular perspective with limited access to the lateral margins of the lesion. The contralateral posterior interhemispheric approach (CPIA) flips the positioning, with the midline positioned horizontally for retraction due to gravity, but with the AVM on the upper side and the approach from the contralateral, lower side...
July 21, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28730545/platelet-first-responders-in-wound-response-cancer-and-metastasis
#17
REVIEW
David G Menter, Scott Kopetz, Ernest Hawk, Anil K Sood, Jonathan M Loree, Paolo Gresele, Kenneth V Honn
Platelets serve as "first responders" during normal wounding and homeostasis. Arising from bone marrow stem cell lineage megakaryocytes, anucleate platelets can influence inflammation and immune regulation. Biophysically, platelets are optimized due to size and discoid morphology to distribute near vessel walls, monitor vascular integrity, and initiate quick responses to vascular lesions. Adhesion receptors linked to a highly reactive filopodia-generating cytoskeleton maximizes their vascular surface contact allowing rapid response capabilities...
July 20, 2017: Cancer Metastasis Reviews
https://www.readbyqxmd.com/read/28729366/recommendation-on-design-execution-and-reporting-of-animal-atherosclerosis-studies-a-scientific-statement-from-the-american-heart-association
#18
REVIEW
Alan Daugherty, Alan R Tall, Mat J A P Daemen, Erling Falk, Edward A Fisher, Guillermo García-Cardeña, Aldons J Lusis, A Phillip Owens, Michael E Rosenfeld, Renu Virmani
Animal studies are a foundation for defining mechanisms of atherosclerosis and potential targets of drugs to prevent lesion development or reverse the disease. In the current literature, it is common to see contradictions of outcomes in animal studies from different research groups, leading to the paucity of extrapolations of experimental findings into understanding the human disease. The purpose of this statement is to provide guidelines for development and execution of experimental design and interpretation in animal studies...
July 20, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28729353/recommendation-on-design-execution-and-reporting-of-animal-atherosclerosis-studies-a-scientific-statement-from-the-american-heart-association
#19
REVIEW
Alan Daugherty, Alan R Tall, Mat J A P Daemen, Erling Falk, Edward A Fisher, Guillermo García-Cardeña, Aldons J Lusis, A Phillip Owens, Michael E Rosenfeld, Renu Virmani
Animal studies are a foundation for defining mechanisms of atherosclerosis and potential targets of drugs to prevent lesion development or reverse the disease. In the current literature, it is common to see contradictions of outcomes in animal studies from different research groups, leading to the paucity of extrapolations of experimental findings into understanding the human disease. The purpose of this statement is to provide guidelines for development and execution of experimental design and interpretation in animal studies...
July 20, 2017: Circulation Research
https://www.readbyqxmd.com/read/28729296/analysis-of-30-spinal-angiograms-falsely-reported-as-normal-in-18-patients-with-subsequently-documented-spinal-vascular-malformations
#20
P Barreras, D Heck, B Greenberg, J-P Wolinsky, C A Pardo, P Gailloud
BACKGROUND AND PURPOSE: The early diagnosis of spinal vascular malformations suffers from the nonspecificity of their clinical and radiologic presentations. Spinal angiography requires a methodical approach to offer a high diagnostic yield. The prospect of false-negative studies is particularly distressing when addressing conditions with a narrow therapeutic window. The purpose of this study was to identify factors leading to missed findings or inadequate studies in patients with spinal vascular malformations...
July 20, 2017: AJNR. American Journal of Neuroradiology
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