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https://www.readbyqxmd.com/read/28427063/optical-coherence-tomography-angiography-in-diabetic-maculopathy
#1
Gabriel Coscas, Marco Lupidi, Florence Coscas
Fluorescein angiography (FA) and indocyanine green angiography have provided information about the normal retinal and choroidal anatomy, nearly comparable to histological findings. These tests have been fundamental in the evaluation of all retinal and choroidal vascular diseases and have allowed clinicians to define and diagnose several pathological conditions. FA became the "gold standard" in retinal imaging due to the capacity to visualize the retinal capillary bed and its changes, both in the macular area and in the periphery...
2017: Developments in Ophthalmology
https://www.readbyqxmd.com/read/28385600/mesenchymal-stem-cells-and-differentiated-insulin-producing-cells-are-new-horizons-for-pancreatic-regeneration-in-type-i-diabetes-mellitus
#2
Ayat M Domouky, Ashraf S Hegab, Amal Al-Shahat, Nermin Raafat
BACKGROUND: Diabetes mellitus has become the third human killer following cancer and cardiovascular disease. Millions of patients, often children, suffer from type 1 diabetes (T1D). Stem cells created hopes to regenerate damaged body tissues and restore their function. AIM: This work aimed at clarifying and comparing the therapeutic potential of differentiated and non-differentiated mesenchymal stem cells (MSCs) as a new line of therapy for T1D. METHODS: 40 Female albino rats divided into group I (control): 10 rats and group II (diabetic), III and IV, 10 rats in each, were injected with streptozotocin (50mg/kg body weight)...
April 3, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28315184/epiphyseal-arterial-network-and-inferior-retinacular-artery-seem-critical-to-femoral-head-perfusion-in-adults-with-femoral-neck-fractures
#3
Dewei Zhao, Xing Qiu, Benjie Wang, Zihua Wang, Wei Wang, Jun Ouyang, Rona M Silva, Xiaotian Shi, Kai Kang, Dachuan Xu, Chuang Li, Shizhen Zhong, Yu Zhang, Kent E Pinkerton
BACKGROUND: A better understanding of the blood supply of the femoral head is essential to guide therapeutic strategies for patients with femoral neck fractures. However, because of the limitations of conventional techniques, the precise distribution and characteristics of intraosseous arteries of the femoral head are not well displayed. QUESTIONS/PURPOSES: To explore the characteristics and interconnections of the intraosseous vessel system between different areas of the femoral head and the possible blood supply compensatory mechanism after femoral neck fracture...
March 17, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28284781/diagnosis-course-and-management-of-angioedema-in-patients-with-acquired-c1-inhibitor-deficiency
#4
Andrea Zanichelli, Giulia Maria Azin, Maddalena Alessandra Wu, Chiara Suffritti, Lorena Maggioni, Sonia Caccia, Francesca Perego, Romualdo Vacchini, Marco Cicardi
BACKGROUND: Acquired angioedema due to C1-inhibitor deficiency (C1-INH-AAE) is a rare disease with no prevalence data or approved therapies. OBJECTIVE: To report data on patients with C1-INH-AAE followed at Angioedema Center, Milan (from 1976 to 2015). METHODS: Diagnostic criteria included history of recurrent angioedema without wheals; decreased C1-INH antigen levels and/or functional activity of C1-INH and C4 antigen less than 50% of normal; late symptom onset (>40 years); no family history of angioedema and C1-INH deficiency...
March 8, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/28259657/expression-of-inos-cd163-and-arg-1-taken-as-m1-and-m2-markers-of-microglial-polarization-in-human-glioblastoma-and-the-surrounding-normal-parenchyma
#5
L Lisi, G M P Ciotti, D Braun, S Kalinin, D Currò, C Dello Russo, A Coli, A Mangiola, C Anile, D L Feinstein, P Navarra
Microglia and macrophages appear to be the most common cells in the GBM microenvironment. In the present study we investigated the status of macrophages/microglia activation in surgical specimens from 41 patients diagnosed with grade IV GBM. For each patient we analyzed both the center of tumor and the parenchyma surrounding the tumor. The specimens were stained for: i) IBA1, a 17-kDa EF hand protein specifically expressed in microglia/macrophages ii) CD163, a cell surface antigen associated with M2 phenotype; iii) iNOS, taken as a functional marker of M1 phenotype, and iv) ARG-I, taken as a functional marker of M2 phenotype...
March 2, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28217325/crystal-structures-of-a-novel-nnn-pincer-ligand-and-its-dinuclear-titanium-iv-alkoxide-pincer-complex
#6
Jakub Pedziwiatr, Ion Ghiviriga, Khalil A Abboud, Adam S Veige
This report describes a synthetic protocols and the crystal structures involving a novel pincer-type H3[NNN] ligand, namely di-μ-bromido-μ-{2-(2,2-di-methylpropanimido-yl)-N-[2-(2,2-di-methyl-propanimido-yl)-4-methyl-phen-yl]-4-methylaniline}-bis-[(diethyl ether)lithium], [Li2Br2(C24H33N3)(C4H10O)2] (1) and a dinuclear metal complex, namely di-μ-bromido-2:3κ(4)Br:Br-bis-{2-(2,2-di-methylpropanimido-yl)-N-[2-(2,2-di-methyl-propanimido-yl)-4-methyl-phen-yl]-4-methylaniline}-1κ(3)N,N',N'';4κ(3)N,N',N''-tetra-μ-iso-propano-lato-1:2κ(4)O:O;3:4κ(4)O:O-diiso-propano-lato-1κO,4κO-2,3-dilithium-1,4-dititanium, [Li2Ti2Br2(C24H32N3)2(C3H7O)6] or {[NHNNH]Ti(O (i) Pr)3(LiBr)2}2 (2)...
February 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/28176853/quantifying-tumor-associated-macrophages-in-breast-cancer-a-comparison-of-iron-and-fluorine-based-mri-cell-tracking
#7
Ashley V Makela, Jeffrey M Gaudet, Paula J Foster
Tumor associated macrophages (TAMs) are associated with tumor growth and metastasis. MRI can detect TAMs labeled with iron oxide (USPIO) or perfluorocarbon (PFC) agents. This study compared these two cell tracking approaches for imaging TAMs in vivo. 4T1 tumors were imaged with MRI at 4 days or 3 weeks post cell implantation after intravenous (i.v.) administration of either USPIO or PFC. Signal loss was detected within tumors at both time points post USPIO. Images acquired at 4 days demonstrated signal loss encompassing the entire tumor and around the periphery at 3 weeks...
February 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28164283/monocytes-microglia-and-cd200-cd200r1-signaling-are-essential-in-the-transmission-of-inflammation-from-the-periphery-to-the-central-nervous-system
#8
Xin Xie, Xiaoguang Luo, Na Liu, Xiaohong Li, Fan Lou, Yumin Zheng, Yan Ren
Peripheral inflammation is known to trigger neuroinflammation and neurodegenerative disease. However, the key components during the propagation of inflammation from the periphery to the central nervous system (CNS) remain unclear. Lipopolysaccharide (LPS) was administered to Sprague-Dawley rats to induce peripheral inflammation. An intravenous injection and an intranigral injection of clodronate liposomes were given to deplete monocytes and microglia, respectively. Recombinant CD200 fusion protein (CD200Fc) or an anti-CD200R1 antibody was injected into the substantia nigra to manipulate the involvement of CD200 and CD200R1...
April 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28159234/immunohistochemical-detection-of-pro-inflammatory-and-anti-inflammatory-cytokines-in-granulomas-in-cattle-with-natural-mycobacterium-bovis-infection
#9
Ana M Canal, Natalia Pezzone, Angel Cataldi, Martín Zumarraga, Mariano Larzabal, Sergio Garbaccio, Analía Fernandez, Lucas Dominguez, Alicia Aranaz, Antonio Rodriguez-Bertos
Cellular immune response was evaluated in lymph nodes and lung with different granulomatous lesions from cattle naturally infected with Mycobacterium bovis. For this purpose, we assessed pro-inflammatory and anti-inflammatory cytokines by immunohistochemical assays. Immunoreaction was observed for all the cytokines analyzed. Fourteen animals displayed advanced stage IV granulomas, with intense immunoreactivity to IFN-γ and TGF-β in areas of caseous necrosis, macrophages and lymphocytes. Seven animals showed stage III granuloma, with high immunoreactivity to IFN-γ (average of 44...
February 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28138158/selective-increase-of-cerebrospinal-fluid-il-6-during-experimental-systemic-inflammation-in-humans-association-with-depressive-symptoms
#10
H Engler, P Brendt, J Wischermann, A Wegner, R Röhling, T Schoemberg, U Meyer, R Gold, J Peters, S Benson, M Schedlowski
Systemic inflammation is accompanied by profound behavioral and mood changes that resemble symptoms of depression. Findings in animals suggest that pro-inflammatory cytokines released by activated immune cells in the periphery evoke these behavioral symptoms by driving inflammatory changes in the brain. However, experimental data in humans are lacking. Here we demonstrate in healthy male volunteers (10 endotoxin treated, 8 placebo treated) that intravenous administration of low-dose endotoxin (0.8 ng/kg body weight), a prototypical pathogen-associated molecular pattern that activates the innate immune system, not only induces a significant increase in peripheral blood cytokine concentrations (that is, tumor necrosis factor-α, interleukin (IL)-6, IL-10) but also results, with some latency, in a robust and selective increase of IL-6 in the cerebrospinal fluid (CSF)...
January 31, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28133208/-a-case-of-primary-acinic-cell-carcinoma-acc-of-the-breast
#11
Hiroshi Kawai, Ryoma Sugimoto, Norichika Iga, Hirokuni Ikeda, Ryosuke Yoshida, Naohisa Waki, Masahiro Ishizaki, Hideyuki Nishi, Kazuki Yamashita
A49 -year-old woman presented with a 3.5 cm mass in her right breast. Mammography revealed a lobular mass with poorly defined margins and no microcalcification. Ultrasonography showed a hypoechoic mass with an irregular margin. The tumor was diagnosed as breast carcinoma using a core needle biopsy. The patient underwent a modified radical mastectomy with sentinel lymph node biopsy, and received adjuvant chemotherapy. The tumor consisted of 2 types of carcinoma. The center of the tumor was solid-tubular carcinoma, and the periphery was acinic cell carcinoma(ACC)...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28126368/circulating-bacterial-lipopolysaccharide-induced-inflammation-reduces-flow-in-brain-irrigating-arteries-independently-from-cerebrovascular-prostaglandin-production
#12
Frédéric Villéga, Jean-Christophe Delpech, Marion Griton, Caroline André, Jean-Michel Franconi, Sylvain Miraux, Jan Pieter Konsman
Brain dysfunction is a frequent complication of the systemic inflammatory response to bacterial infection or sepsis. In the present work, the effects of intravenous bacterial lipopolysaccharide (LPS) administration on cerebral arterial blood flow were assessed with time-of-flight (TOF)-based magnetic resonance angiography (MRA) in mice. Cerebral expression of the transcription factors nuclear factor-kappaB (NF-κB) and c-Fos and that of enzymes synthesizing vasoactive mediators, such as prostaglandins and nitric oxide, known to be increased under inflammatory conditions, were studied in the same animals...
January 23, 2017: Neuroscience
https://www.readbyqxmd.com/read/28079801/acute-necrotizing-retinal-vasculitis-as-onset-of-systemic-lupus-erythematosus-a-case-report
#13
Simeon Monov, Ruska Hristova, Rositza Dacheva, Reni Toncheva, Russka Shumnalieva, Viara Shoumnalieva-Ivanova, Daniela Monova
RATIONALE: Systemic lupus erythematosus (SLE) is a complex autoimmune disease characterized by autoantibody production, complement activation, and deposition of immune complexes in tissues and organs. SLE can involve any region of the visual system. Although ocular manifestations are not part of the classification criteria for SLE, they can be observed in up to one-third of the patients with SLE. They are rarely reported at the time of disease onset. Retinal vasculitis is usually associated with active generalized disease...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28069270/treatment-of-subcutaneous-abscesses-in-children-with-incision-and-loop-drainage-a-simplified-method-of-care
#14
Charles J Aprahamian, Hilana H Nashad, Nerina M DiSomma, Breanna M Elger, Joseph R Esparaz, Thomas J McMorrow, Alexandria M Shadid, Angela M Kao, Mark J Holterman, Robert C Kanard, Richard H Pearl
PURPOSE: The aim of this study was to expand on our previous report of 115 patients after more than a decade-long experience using incision and loop drainage for pediatric subcutaneous abscess management. This report comprises the largest consecutive series of pediatric abscess patients from a single institution ever recorded. METHODS: A retrospective study was performed of all pediatric patients who underwent incision and loop drainage of subcutaneous abscesses at our institution between January 2002 and December 2014...
December 30, 2016: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28057551/metabolite-inactive-etomidate-analogues-alleviating-suppression-on-adrenal-function-in-beagle-dogs
#15
Jun Yang, Yi Kang, Bin Wang, Linghui Yang, Jin Liu, Wensheng Zhang
Owing to rapid generation in body, the metabolites of etomidate softdrug are able to accumulate in either the brain or periphery and subsequently affect the recovery from anaesthesia or cause corticosteroid suppression. This study was designed to investigate the ability of two etomidate analogues (ET-26, ET-42) with inactive metabolites to provide anaesthesia with lesser corticosteroid suppression. The 50% effective dose (ED50) of ET-26, ET-42, Etomidate, MOC-ET (an etomidate softdrug) and CPMM (an improved etomidate softdrug) required to induce anaesthesia intravenously in Beagle dogs were 1...
March 1, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28053042/induction-of-migraine-like-photophobic-behavior-in-mice-by-both-peripheral-and-central-cgrp-mechanisms
#16
Bianca N Mason, Eric A Kaiser, Adisa Kuburas, Maria-Cristina M Loomis, John A Latham, Leon F Garcia-Martinez, Andrew F Russo
The neuropeptide calcitonin gene-related peptide (CGRP) is a key player in migraine. Although migraine can be treated using CGRP antagonists that act peripherally, the relevant sites of CGRP action remain unknown. To address the role of CGRP both within and outside the CNS, we used CGRP-induced light-aversive behavior in mice as a measure of migraine-associated photophobia. Peripheral (intraperitoneal) injection of CGRP resulted in light-aversive behavior in wild-type CD1 mice similar to aversion seen previously after central (intracerebroventricular) injection...
January 4, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27993196/milk-fat-globule-epidermal-growth-factor-factor-viii-derived-peptide-msp68-is-a-cytoskeletal-immunomodulator-of-neutrophils-that-inhibits-rac1
#17
Louie Hendricks, Monowar Aziz, Weng-Lang Yang, Jeffrey Nicastro, Gene F Coppa, Marc Symons, Ping Wang
BACKGROUND: Prolonged neutrophil infiltration leads to exaggerated inflammation and tissue damage during sepsis. Neutrophil migration requires rearrangement of their cytoskeleton. Milk fat globule-epidermal growth factor-factor VIII-derived short peptide 68 (MSP68) has recently been shown to be beneficial in sepsis-induced tissue injury and mortality. We hypothesize that MSP68 inhibits neutrophil migration by modulating small GTPase Rac1-dependent cytoskeletal rearrangements. METHODS: Bone marrow-derived neutrophils (BMDNs) or whole lung digest isolated neutrophils were isolated from 8 to 10 wk old C57BL/6 mice by Percoll density gradient centrifugation...
February 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/27980781/critical-influence-of-the-thymus-on-peripheral-t-cell-homeostasis
#18
Pedro Henrique Oliveira Vianna, Fábio B Canto, Jeane S Nogueira, Caroline Fraga Cabral Gomes Nunes, Adriana César Bonomo, Rita Fucs
INTRODUCTION: A tight balance between regulatory CD4(+)Foxp3(+) (Treg) and conventional CD4(+)Foxp3(-) (Tconv) T cell subsets in the peripheral compartment, maintained stable throughout most of lifetime, is essential for preserving self-tolerance along with efficient immune responses. An excess of Treg cells, described for aged individuals, may critically contribute to their reported immunodeficiency. In this work, we investigated if quantitative changes in thymus emigration may alter the Treg/Tconv homeostasis regardless of the aging status of the peripheral compartment...
December 2016: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/27909097/induction-of-migraine-like-photophobic-behavior-in-mice-by-both-peripheral-and-central-cgrp-mechanisms
#19
Bianca N Mason, Eric A Kaiser, Adisa Kuburas, Maria-Cristina M Loomis, John A Latham, Leon F Garcia-Martinez, Andrew F Russo
The neuropeptide calcitonin gene-related peptide (CGRP) is a key player in migraine. While migraine can be treated using CGRP antagonists that act peripherally, the relevant sites of CGRP action remain unknown. To address the role of CGRP both within and outside the central nervous system, we used CGRP-induced light aversive behavior in mice as a measure of migraine-associated photophobia. Peripheral (intraperitoneal, IP) injection of CGRP resulted in light aversive behavior in wild-type CD1 mice similar to aversion previously seen following central (intracerebroventricular, ICV) injection...
December 1, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27871881/targeting-brain-and-peripheral-plasticity-of-the-lipidome-in-acute-kainic-acid-induced-epileptic-seizures-in-mice-via-quantitative-mass-spectrometry
#20
Raissa Lerner, Julia Post, Sebastian Loch, Beat Lutz, Laura Bindila
Epilepsy is a highly common chronic neurological disorder, manifested in many different types, affecting ~1% of the worldwide human population. The molecular mechanisms of epileptogenesis have not yet been clarified, and pharmacoresistance exhibited by 30-40% of epilepsy patients remains a major obstacle in medical care. Growing evidence indicates a role of lipid signalling pathways in epileptogenesis, thus lipid signals emerge as potential biomarkers for the onset and evolving course of the epileptic disorder, as well as potential therapeutic agents and targets...
February 2017: Biochimica et Biophysica Acta
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