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https://www.readbyqxmd.com/read/28810553/evaluation-of-the-c-domain-of-heparanase-during-age-induced-macrophage-inflammatory-response
#1
Qiaojing Qin, Guang Xu, Weiwei Qi, Mei Guo, Zhaoxia Wang, Wangjie Xu, Zhongdong Qiao, Yong Gu, Jianying Niu
Diabetic vasculopathy is intensified by macrophage inflammation caused by advanced glycation end products (AGEs). Heparanase (HPA) is a unique endoglycosidase, which cleaves heparan sulfate proteoglycans (HSPGs) including syndecan-1 (Syn-1) to further stimulate macrophage cell migration and inflammation. The present study was planned to evaluated the role of C-domain (if any) of HPA in AGE inflammatory response in macrophages. Cell viability was assessed using MTT assay, migration assay, ELISA for tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β) levels, mRNA expression by RT-PCR and heparan degrading enzyme assay for HPA activity...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28808969/methods-of-assessing-sting-activation-and-trafficking
#2
Vladislav Pokatayev, Nan Yan
The signaling adapter protein STING is crucial for the host immune response to cytosolic DNA and cyclic dinucleotides. Under basal conditions, STING resides on the endoplasmic reticulum (ER ) , but upon activation, it traffics through secretory pathway to cytoplasmic vesicles, where STING activates downstream immune signaling. Classical STING activation and trafficking are triggered by binding of cyclic dinucleotide ligands. STING signaling can also be activated by gain-of-function mutations that lead to constitutive trafficking of STING...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28803173/ruptured-vertebral-artery-dissecting-aneurysm-concurrent-with-spontaneous-cervical-internal-carotid-artery-dissection-a-report-of-three-cases-and-literature-review
#3
Yosuke Akamatsu, Kenichi Sato, Hidenori Endo, Yasushi Matsumoto, Teiji Tominaga
BACKGROUND: Multiple dissections rarely occur with ruptured vertebral artery dissecting aneurysms (VADAs). Here, we report three cases of ruptured VADA concurrent with spontaneous cervical internal carotid artery (ICA) dissection. CASE DESCRIPTION: None of the three patients had a history of vasculopathy or trauma. All ruptured VADAs were treated with internal coil trapping in the acute stage of subarachnoid hemorrhage (SAH). Rebleeding was not observed in any patients after the treatment...
August 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28803167/igg4-related-disease-a-new-etiology-underlying-diffuse-intracranial-dilating-vasculopathy
#4
Evan S Marlin, Davis Dornbos, Daniel S Ikeda, Norman L Lehman, Ciarán J Powers
BACKGROUND: Diffuse intracranial aneurysmal vasculopathy is a rare condition, previously described in patients with human immunodeficiency virus (HIV) infection. IgG4 related disease (IgG4-RD) is a recognized inflammatory disease of systemic organs, leading to fibrosis of connective tissues. It has also been linked to inflammatory dilating aortic aneurysms, coronary vascular disease, hypophysitis, orbital pseudotumor and pachymeningitis. It has not yet been described as a cause of diffuse intracranial dilating vasculopathy...
August 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28802220/comparison-of-lower-limb-muscle-strength-between-diabetic-neuropathic-and-healthy-subjects-using-opensim
#5
Alessandra Scarton, Ilse Jonkers, Annamaria Guiotto, Fabiola Spolaor, Gabriella Guarneri, Angelo Avogaro, Claudio Cobelli, Zimi Sawacha
Diabetes neuropathy and vasculopathy are the two major complications of diabetes mellitus, leading to diabetic foot disease, of which the worst consequences are plantar ulcers and amputations. Motor impairments like joint stiffness and loss of balance are distinctive effects of diabetes and they have been extensively explored. However, while altered muscle function has been also assessed through experimentally measured surface electromyography, little is known about muscle forces. The objective of this study was to estimate muscle forces in subjects with diabetes and to use these data to identify differences with respect to a population of healthy subjects matched for age and BMI...
July 31, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28801615/choroidal-remodeling-in-age-related-macular-degeneration-and-polypoidal-choroidal-vasculopathy-a-12-month-prospective-study
#6
Daniel Shu Wei Ting, Yasuo Yanagi, Rupesh Agrawal, Hwei Yee Teo, Sophia Seen, Ian Yew San Yeo, Ranjana Mathur, Choi Mun Chan, Shu Yen Lee, Edmund Yick Mun Wong, Doric Wong, Tien Yin Wong, Gemmy Chui Ming Cheung
Choroid thinning occurs in age-related macular degeneration (AMD). However, it remains unclear whether the reduction is due to reduction in choroidal vessels or shrinkage of choroidal stroma, or both. The purpose of this study was to evaluate the changes of the choroidal vascular and stromal area in 118 patients with typical AMD (t-AMD) and polypoidal choroidal vasculopathy (PCV) over a 12-month period. We used spectral-domain optical coherence tomography (SD-OCT) with enhanced depth imaging (EDI) mode to measure the subfoveal choroidal thickness (CT), central retinal thickness (CRT) and choroidal vascularity index (CVI - ratio of luminal area to total choroidal area)...
August 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28801243/peroxiredoxin-2-plays-a-pivotal-role-as-multimodal-cytoprotector-in-the-early-phase-of-pulmonary-hypertension
#7
Enrica Federti, Alessandro Matte', Alessandra Ghigo, Immacolata Andolfo, Cimino James, Angela Siciliano, Christophe Leboeuf, Anne Janin, Francesco Manna, Soo Young Choi, Achille Iolascon, Elisabetta Beneduce, Davide Melisi, Dae Won Kim, Sonia Levi, Lucia De Franceschi
Pulmonary-artery-hypertension (PAH) is a life-threatening and highly invalidating chronic disorder. Chronic oxidation contributes to lung damage and disease progression. Peroxiredoxin-2 (Prx2) is a typical 2-cysteine (Cys) peroxiredoxin but its role on lung homestasis is yet to be fully defined. Here, we showed that Prx2(-/-) mice displayed chronic lung inflammatory disease associated with (i) abnormal pulmonary vascular dysfunction; and (ii) increased markers of extracellular-matrix remodeling. Hypoxia was used to induce PAH...
August 8, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28791519/adolescents-with-moyamoya-disease-clinical-features-surgical-treatment-and-long-term-outcomes
#8
Meng Zhao, Dong Zhang, Shuo Wang, Yan Zhang, Rong Wang, Xiaofeng Deng, Faliang Gao, Jizong Zhao
BACKGROUND: This study aimed to elucidate the clinical features, surgical treatment and long-term outcomes of adolescent patients with moyamoya disease. METHODS: We reviewed consecutive patients with moyamoya vasculopathy who were admitted to our hospital from 2009 to 2015 to identify adolescent patients with moyamoya disease. Clinical features, surgical treatment and long-term outcomes were analyzed. Follow-up was performed by face-to-face or structured telephone interviews...
August 8, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28781013/early-aspirin-use-and-the-development-of-cardiac-allograft-vasculopathy
#9
Miae Kim, Brian A Bergmark, Thomas A Zelniker, Mandeep R Mehra, Garrick C Stewart, Deborah S Page, Erica L Woodcome, Jennifer A Smallwood, Steven Gabardi, Michael M Givertz
BACKGROUND: Cardiac allograft vasculopathy (CAV) remains a leading cause of morbidity and mortality after orthotopic heart transplantation (OHT). Little is known about the influence of aspirin on clinical expression of CAV. METHODS: We followed 120 patients with OHT at a single center for a median of 7 years and categorized them by the presence or absence of early aspirin therapy post-transplant (aspirin treatment ≥6 months in the first year). The association between aspirin use and time to the primary end-point of angiographic moderate or severe CAV (International Society for Heart and Lung Transplantation grade ≥2) was investigated...
July 3, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28780405/malignant-cerebral-swelling-after-cranioplasty-due-to-ipsilateral-intracranial-vasculopathy-case-report-and-literature-review
#10
Bo Chen, Wenchen Li, Lixiang Zhou, Shuanglin Fu, Haifeng Wang, Shuyan Zhang
BACKGROUND: Cranioplasty is a well-established surgical operation that is used worldwide for skull defect patients following decompressive craniectomy (DC). However, especially in some cases, fatal complications such as malignant cerebral swelling after uneventful cranioplasty should be attended to. CASE DESCRIPTION: We present a rare case of massive malignant ipsilateral cerebral swelling following uneventful titanium mesh cranioplasty due to rare ipsilateral intracranial vasculopathy confirmed by magnetic resonance angiography and magnetic resonance venography (MRA and MRV)...
August 2, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28775077/chronic-rejection-of-cardiac-allografts-is-associated-with-increased-lymphatic-flow-and-cellular-trafficking
#11
Lindsey A Edwards, Anna K Nowocin, Nazila V Jafari, Lucy Meader, Kathryn Brown, Aurélien Sarde, Carolyn Lam, Alex Murray, Wilson Wong
Background -Cardiac transplantation is an excellent treatment for end-stage heart disease. However, rejection of the donor graft, particularly by chronic rejection leading to cardiac allograft vasculopathy, remains a major cause of graft loss. The lymphatic system plays a crucial role in the alloimmune response, facilitating trafficking of antigen presenting cells (APCs) to draining lymph nodes (dLN). The encounter of APCs with T lymphocytes in secondary lymphoid organs is essential for the initiation of alloimmunity...
August 3, 2017: Circulation
https://www.readbyqxmd.com/read/28767554/comparison-of-optical-coherence-tomography-angiographic-changes-after-anti-vascular-endothelial-growth-factor-therapy-alone-or-in-combination-with-photodynamic-therapy-in-polypoidal-choroidal-vasculopathy
#12
Kelvin Yi Chong Teo, Yasuo Yanagi, Shu Yen Lee, Ian Yew San Yeo, Gavin Siew Wei Tan, Ranjana Mathur, Choi Mun Chan, Tien Yin Wong, Chui Ming Gemmy Cheung
PURPOSE: To compare changes in optical coherence tomography angiography in eyes with polypoidal choroidal vasculopathy after treatment with anti-vascular endothelial growth factor monotherapy or combined with photodynamic therapy. METHODS: This is a longitudinal case-controlled study. The authors performed optical coherence tomography angiography at baseline and Month 3 in patients with treatment-naive polypoidal choroidal vasculopathy undergoing monotherapy (n = 10) or combination therapy (n = 13)...
August 1, 2017: Retina
https://www.readbyqxmd.com/read/28766279/spectrum-of-pachychoroid-diseases
#13
REVIEW
Sezen Akkaya
PURPOSE: To perform a systematic review of the literature examining about the pachychoroid diseases spectrum. METHODS: A systematic literature search was performed using the Medline database. A total of four studies directly relevant to our search are reviewed here. RESULTS: A structurally and functionally intact choroid tissue is vitally important for the retina function. While central retinal artery is responsible to supply the 2/3, internal part of the retina, choroidal vein network is responsible for the remaining 1/3 external part...
August 1, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28765576/visualization-of-synthetic-vascular-smooth-muscle-cells-in-atherosclerotic-carotid-rat-arteries-by-f-18-fdg-pet
#14
Kisoo Pahk, Chanmin Joung, Se-Mi Jung, Hwa Young Song, Ji Yong Park, Jung Woo Byun, Yun-Sang Lee, Jin Chul Paeng, Chunsook Kim, Sungeun Kim, Won-Ki Kim
Synthetic vascular smooth muscle cells (VSMCs) play important roles in atherosclerosis, in-stent restenosis, and transplant vasculopathy. We investigated the synthetic activity of VSMCs in the atherosclerotic carotid artery using (18)F-fluorodeoxyglucose (FDG) positron emission tomography (PET). Atherosclerosis was induced in rats by partial ligation of the right carotid artery coupled with an atherogenic diet and vitamin D injections (2 consecutive days, 600,000 IU/day). One month later, rats were imaged by F-18 FDG PET...
August 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28765149/changes-in-multiple-cytokine-concentrations-in-the-aqueous-humour-of-neovascular-age-related-macular-degeneration-after-2-months-of-ranibizumab-therapy
#15
Shinichi Sakamoto, Hidenori Takahashi, Xue Tan, Yuji Inoue, Yoko Nomura, Yusuke Arai, Yujiro Fujino, Hidetoshi Kawashima, Yasuo Yanagi
PURPOSE: To determine changes in multiple cytokine concentrations in the anterior chamber during the induction phase of ranibizumab treatment in patients with neovascular age-related macular degeneration (AMD). METHODS: This prospective study included 48 treatment-naïve neovascular AMD eyes of 48 patients who received three consecutive monthly injections of ranibizumab at the Japan Community Health Care Organization Tokyo Shinjuku Medical Center between November 2010 and August 2012...
August 1, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28757617/nilotinib-induced-vasculopathy-identification-of-vascular-endothelial-cells-as-a-primary-target-site
#16
E Hadzijusufovic, K Albrecht-Schgoer, K Huber, G Hoermann, F Grebien, G Eisenwort, W Schgoer, S Herndlhofer, C Kaun, M Theurl, W R Sperr, U Rix, I Sadovnik, B Jilma, G H Schernthaner, J Wojta, D Wolf, G Superti-Furga, R Kirchmair, P Valent
The BCR/ABL1 inhibitor Nilotinib is increasingly used to treat patients with chronic myeloid leukemia (CML). Although otherwise well-tolerated, Nilotinib has been associated with the occurrence of progressive arterial occlusive disease (AOD). Our objective was to determine the exact frequency of AOD and examine in vitro and in vivo effects of Nilotinib and Imatinib on endothelial cells to explain AOD-development. In contrast to Imatinib, Nilotinib was found to upregulate pro-atherogenic adhesion-proteins (ICAM-1, E-selectin, VCAM-1) on human endothelial cells...
July 31, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28756377/thrombolytic-therapy-for-the-treatment-of-acute-ischaemic-stroke-in-adults-with-homozygous-sickle-cell-disease
#17
Loubna Majhadi, David Calvet, Charlotte Rosso, Pablo Bartolucci
Stroke is a significant cause of morbidity and mortality in patients with homozygous sickle cell disease (SCD). A specific large-vessel vasculopathy is often responsible for both haemorrhagic and ischaemic strokes in patients with SCD. Although intravenous thrombolysis has been considered as a therapeutic option for acute ischaemic strokes in SCD, its use remains debated because of an increased risk of spontaneous intracranial haemorrhage reported in this disease. This risk of haemorrhage is mainly supported by the presence of a Moyamoya syndrome often associated with the specific vasculopathy in patients with homozygous SCD...
July 28, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28754566/impact-of-asymmetric-dimethylarginine-on-coronary-physiology-early-after-heart-transplantation
#18
Rushi V Parikh, Kiran K Khush, Helen Luikart, Vedant S Pargaonkar, Yuhei Kobayashi, Jang Hoon Lee, Seema Sinha, Garrett Cohen, Hannah A Valantine, Alan C Yeung, William F Fearon
Cardiac allograft vasculopathy is a major cause of long-term graft failure following heart transplantation. Asymmetric dimethylarginine (ADMA), a marker of endothelial dysfunction, has been mechanistically implicated in the development of cardiac allograft vasculopathy, but its impact on coronary physiology early after transplantation is unknown. Invasive indices of coronary physiology, namely, fractional flow reserve (FFR), the index of microcirculatory resistance, and coronary flow reserve, were measured with a coronary pressure wire in the left anterior descending artery within 8 weeks (baseline) and 1 year after transplant...
June 29, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28754431/recommendations-of-the-brazilian-society-of-rheumatology-for-the-induction-therapy-of-anca-associated-vasculitis
#19
REVIEW
Alexandre Wagner Silva de Souza, Ana Luisa Calich, Henrique de Ataíde Mariz, Manuella Lima Gomes Ochtrop, Ana Beatriz Santos Bacchiega, Gilda Aparecida Ferreira, Jozelia Rêgo, Mariana Ortega Perez, Rosa Maria Rodrigues Pereira, Wanderley Marques Bernardo, Roger Abramino Levy
The purpose of these recommendations is to guide the appropriate induction treatment of antineutrophil cytoplasmic antibody-associated vasculitis (AAV) patients with active disease. The recommendations proposed by the Vasculopathies Committee of the Brazilian Society Rheumatology for induction therapy of AAV, including granulomatosis with polyangiitis, microscopic polyangiitis and renal-limited vasculitis, were based on systematic literature review and expert opinion. Literature review was performed using Medline (PubMed), EMBASE and Cochrane database to retrieve articles until October 2016...
July 25, 2017: Revista Brasileira de Reumatologia
https://www.readbyqxmd.com/read/28752544/three-cases-of-lymphocytic-thrombophilic-arteritis-presenting-with-an-annular-eruption
#20
Robert I Kelly, Edmund Wee, Chasari Tancharoen, Mei M Tam, Showan Balta, Richard A Williams
We describe three patients who presented with a striking erythematous non-blanching annular eruption and features of lymphocytic thrombophilic arteritis (LTA), with a prominent lymphocytic vasculitis involving deep dermal vessels. Lymphocytic inflammation was also evident in the superficial vessels and one patient had small superficial ulcers over the ankle area resembling livedoid vasculopathy (LV). Multiple biopsies demonstrated a persistent absence of neutrophils in the infiltrate consistent with a lymphocytic process...
July 28, 2017: Australasian Journal of Dermatology
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