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Tear cytokines

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https://www.readbyqxmd.com/read/27897453/clinical-usefulness-of-simultaneous-measurement-of-the-tear-levels-of-ccl17-ccl24-and-il-16-for-the-biomarkers-of-allergic-conjunctival-disorders
#1
Jun Shoji, Hiroshi Aso, Noriko Inada
PURPOSE: This study investigated the clinical usefulness of a multiple tear cytokine/chemokine test by simultaneously determining tear levels of CC chemokine ligand 17 (CCL17)/thymus and activation-regulated chemokine (TARC), CCL24/eotaxin-2, and interleukin-16 (IL-16) for assessing acute and chronic allergic inflammation in allergic conjunctival disorders (ACDs). SUBJECTS AND METHODS: This study included 37 patients with ACD and 11 healthy adults (controls). Patients with ACDs were divided into the following three groups; patients with allergic conjunctivitis (AC group, n = 17), patients with atopic keratoconjunctivitis (AKC group, n = 6), and patients with vernal keratoconjunctivitis (VKC group, n = 14)...
November 29, 2016: Current Eye Research
https://www.readbyqxmd.com/read/27880731/smad4-in-t-cells-plays-a-protective-role-in-the-development-of-autoimmune-sj%C3%A3-gren-s-syndrome-in-the-nonobese-diabetic-mouse
#2
Donghee Kim, Jae Young Kim, Hee-Sook Jun
We investigated the role of Smad4, a signaling molecule of the TGF-beta pathway, in T cells on the pathology of Sjögren's syndrome (SS) in nonobese diabetic (NOD) mice, an animal model of SS. T cell-specific Smad4-deleted (Smad4fl/fl,CD4-Cre; Smad4 tKO) NOD mice had accelerated development of SS compared with wild-type (Smad4+/+,CD4-Cre; WT) NOD mice, including increased lymphocyte infiltration into exocrine glands, decreased tear and saliva production, and increased levels of autoantibodies at 12 weeks of age...
November 17, 2016: Oncotarget
https://www.readbyqxmd.com/read/27873479/cytokine-and-chemokine-tear-levels-in-patients-with-uveitis
#3
Ester Carreño, Alejandro Portero, José M Herreras, Carmen García-Vázquez, Scott M Whitcup, Michael E Stern, Margarita Calonge, Amalia Enríquez-de-Salamanca
PURPOSE: To determine whether the levels of cytokines and chemokines in tears differ in uveitis patients and healthy subjects. METHODS: Ninety-two uveitis patients (mean age 46.4 years) and 157 control healthy subjects (mean age 49.5 years) were recruited. Subjects with ocular surface diseases such as dry eye were excluded from the study. Using multiplex bead-based assays, tears (4 μl) were analysed for the concentration of interleukin (IL)-1β, IL-1RA, IL-2, IL-6, IL-7, IL-8/CXCL8, IL-10, IL-12p70, IL-15, IL-17A, IL-23, epidermal growth factor (EGF), fractalkine/CX3CL1, interferon-γ, IP-10/CXCL10, monocyte chemo-attractant protein (MCP)-1/CCL2, tumour necrosis factor-α, vascular endothelial growth factor (VEGF), transforming growth factor (TGF)-β1, TGF-β2 and TGF-β3...
November 22, 2016: Acta Ophthalmologica
https://www.readbyqxmd.com/read/27829990/analysis-of-the-effects-of-preservative-free-tafluprost-on-the-tear-proteome
#4
Sebastian Funke, Sabine Beck, Katrin Lorenz, Marion Kotterer, Dominik Wolters, Natarajan Perumal, Norbert Pfeiffer, Franz H Grus
The purpose of the present study was to assess the ocular surface health status in primary open angle glaucoma (POAG) patients switching from topical application of preserved latanoprost (LT) to preservative-free tafluprost (PFT) by tear proteomic monitoring. Tear fluid of POAG patients showing dry eye symptoms, using LT and switching to PFT as well as tear fluid of healthy controls has been examined. Tear proteome dynamics was monitored over 24 weeks in a first mass spectrometric explorative analysis in a small POAG patient cohort (N = 3)...
2016: American Journal of Translational Research
https://www.readbyqxmd.com/read/27817918/a-randomized-double-masked-placebo-controlled-clinical-trial-of-two-forms-of-omega-3-supplements-for-treating-dry-eye-disease
#5
Laura A Deinema, Algis J Vingrys, Chinn Yi Wong, David C Jackson, Holly R Chinnery, Laura E Downie
PURPOSE: To assess the efficacy of 2 forms of oral long-chain omega-3 (ω-3) essential fatty acid (EFA) supplements, phospholipid (krill oil) and triacylglyceride (fish oil), for treating dry eye disease (DED). DESIGN: Randomized, double-masked, placebo-controlled clinical trial. PARTICIPANTS: This study was conducted at a single site and involved 60 participants with mild to moderate DED who were randomized (1:1:1) to 1 of 3 groups: placebo (olive oil), krill oil, or fish oil supplements...
November 3, 2016: Ophthalmology
https://www.readbyqxmd.com/read/27814629/advances-in-the-treatment-of-rotator-cuff-lesions-by-cytokines
#6
Genbin Wu, Peng Cheng Xu, Peng Wu, Kaihua Hu, Yeqing Sun, Biao Cheng, Yong Lu
Rotator cuff tears are one of the most common shoulder problems that usually require operative treatments. Therapeutic options used to repair ruptured tendons have consisted of suture, autografts, allografts, and synthetic prostheses. Although surgical treatments have improved dramatically up to now, shoulder pathology is still challenging to orthopedic surgery primarily because these injuries often respond poorly to treatment and require prolonged rehabilitation. Recent attention has focused on several biologic pathways which can augment function to tendon healing, consequently leading to the identification of growth factors involved in this process...
January 1, 2017: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/27706674/immunological-impression-cytology-of-the-conjunctival-epithelium-in-patients-with-thyroid-orbitopathy-related-dry-eye
#7
S L Hsu, P Y Lee, C H Chang, C H Chen
Thyroid orbitopathy (TO) is an autoimmune disease that is complicated by ocular surface disorders, leading to discomfort. Dry eye is very prevalent in patients with TO. Recent studies on the pathogenesis of dry eye have focused on the inflammatory process, and some supporting evidence has been discovered. Because TO is a disorder of autoimmune origin, we assumed that the association between TO and dry eye is related to inflammation. Inflammation of the ocular surface in TO-related dry eye has not been well studied...
August 30, 2016: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/27699412/adipose-derived-mesenchymal-stem-cells-reduce-lymphocytic-infiltration-in-a-rabbit-model-of-induced-autoimmune-dacryoadenitis
#8
Xue Li, Xiaoxiao Lu, Deming Sun, Xilian Wang, Liyuan Yang, Shaozhen Zhao, Hong Nian, Ruihua Wei
Purpose: To investigate the immunoregulatory roles of adipose-derived mesenchymal stem cells (ADSCs) in autoimmune dacryoadenitis. Methods: Rabbits were treated with ADSCs or phosphate-buffered solution on days 1, 3, 5, 7, and 9 after injection of activated peripheral blood lymphocytes, and clinical scores were determined by assessing tear production, break-up time, and fluorescein and hematoxylin and eosin staining. Inflammatory response was determined by measuring the expression of different mediators of inflammation in the lacrimal glands...
October 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27695117/observation-of-influence-of-cataract-surgery-on-the-ocular-surface
#9
Yuli Park, Hyung Bin Hwang, Hyun Seung Kim
INTRODUCTION: To evaluate meibomian gland function, changes of lacrimal tears and ocular surface parameters and tear inflammatory mediators following cataract surgery. METHODS: 48 eyes of 34 patients who underwent uncomplicated phacoemulsification were involved and divided into 2 groups with those who had preexisting dry-eye before cataract surgery and those who did not. Ocular symptom score, Schirmer I test, tear film break-up time (TBUT), corneal sensitivity threshold, corneal staining, inflammatory cytokine activities, lid margin abnormalities, meibum expressibility, meibum quality and meibomian gland imaging were evaluated preoperatively, at 1 day, 1 and 2 months postoperatively...
2016: PloS One
https://www.readbyqxmd.com/read/27631352/translational-immunoimaging-and-neuroimaging-demonstrate-corneal-neuroimmune-crosstalk
#10
Pedram Hamrah, Yashar Seyed-Razavi, Takefumi Yamaguchi
Corneal immunoimaging and neuroimaging approaches facilitate in vivo analyses of the cornea, including high-resolution imaging of corneal immune cells and nerves. This approach facilitates the analyses of underlying immune and nerve alterations not detected by clinical slit-lamp examination alone. In this review, we describe recent work performed in our translational ocular immunology center with a focus on "bench-to-bedside" and "bedside-to-bench" research. The ability to visualize dendritiform immune cells (DCs) in patients with laser in vivo confocal microscopy (IVCM), recently discovered in the central murine cornea, has allowed us to demonstrate their utility as a potential surrogate biomarker for inflammatory ocular surface diseases...
November 2016: Cornea
https://www.readbyqxmd.com/read/27617877/bilateral-alterations-in-corneal-nerves-dendritic-cells-and-tear-cytokine-levels-in-ocular-surface-disease
#11
Takefumi Yamaguchi, Pedram Hamrah, Jun Shimazaki
This review summarizes the recent literature regarding corneal imaging in human subjects using in vivo confocal microscopy. It also covers the recent literature on corneal immune cells, nerves, and tear cytokine levels in ocular surface diseases as well as corneal immune privilege. The significance of interactions between corneal immune cells and nerves in health, neurotrophic keratopathy, and infectious keratitis is discussed. Furthermore, bilateral alterations of immune cells and nerves in clinically unilateral corneal diseases and the link to changes of tear cytokines or neuropeptide levels in contralateral eyes are described...
November 2016: Cornea
https://www.readbyqxmd.com/read/27604189/traumatic-and-degenerative-meniscus-tears-have-different-gene-expression-signatures
#12
Robert H Brophy, Linda J Sandell, Muhammad Farooq Rai
BACKGROUND: Meniscus tears are classified as traumatic or degenerative based on the tear pattern. There is little evidence demonstrating biological differences between the 2 tear types. HYPOTHESIS: Gene expression signatures in the injured meniscus are different between traumatic (vertical) and degenerative (complex, horizontal, or flap) tears. STUDY DESIGN: Controlled laboratory study. METHODS: Samples of the torn meniscus from the white-white zone were removed at the time of clinically indicated partial meniscectomy from 48 patients (37 with degenerative tears and 11 with traumatic tears)...
September 7, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27585367/a-distinct-cytokines-profile-in-tear-film-of-dry-eye-disease-ded-patients-with-hiv-infection
#13
Rupesh Agrawal, Praveen Kumar Balne, Anuradha Veerappan, Veonice Bijin Au, Bernett Lee, Eileen Loo, Arkasubhra Ghosh, Louis Tong, Stephen C Teoh, John Connolly, Petrina Tan
PURPOSE: To investigate the tear cytokine profile in HIV patients with dry eye disease (DED) and study the association between the severity of ocular inflammatory complications and tear cytokines levels. We postulate that HIV-mediated inflammation may be the underlying pathogenic mechanism for HIV-associated DED. METHODS: The current prospective case-control study compared tear film cytokine profiles in DED patients with HIV infection (n=34) and age/gender-matched DED patients without HIV infection [controls (n=32)]...
December 2016: Cytokine
https://www.readbyqxmd.com/read/27577534/application-of-multiplex-immunoassay-technology-to-investigations-of-ocular-disease
#14
Valerie Sloane Jones, Jian Wu, Si-Wei Zhu, Ruo-Pan Huang
Eye-derived fluids, including tears, aqueous humour and vitreous humour often contain molecular signatures of ocular disease states. These signatures can be composed of cytokines, chemokines, growth factors, proteases and soluble receptors. However, the small quantities (<10 µl) of these fluids severely limit the detection of these proteins by traditional enzyme-linked immunosorbent assay or Western blot. To maximise the amount of information generated from the analysis of these specimens, many researchers have employed multiplex immunoassay technologies for profiling the expression or modification of multiple proteins from minute sample volumes...
August 31, 2016: Expert Reviews in Molecular Medicine
https://www.readbyqxmd.com/read/27535257/tendon-homeostasis-in-hypercholesterolemia
#15
Louis J Soslowsky, George W Fryhofer
Hypercholesterolemia is a serious health problem that is associated not only with heart disease, but also tendon pathology. In high cholesterol environments (e.g. familial hyperlipidemia), lipids accumulate within the tendon extracellular matrix and form deposits called xanthomas. Lipid-related changes are known to affect several tendon mechanical properties, including stiffness and modulus, in uninjured and injured tendons, alike. Mechanisms to explain these cholesterol-related changes are multiple, including alterations in tenocyte gene and protein expression, matrix turnover, tissue vascularity, and cytokine production...
2016: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/27420560/the-study-of-interleukin-17-level-in-vernal-keratoconjunctivitis-disease-and-its-relationship-between-symptom-and-sign-severity
#16
Mohammad Hosein Validad, Hossein Ali Khazaei, Masoud Pishjoo, Zohre Safdari
INTRODUCTION: Vernal keratoconjunctivitis (VKC) is a bilateral multi-factorial disease. The pathogenesis of this disease is not obviously determined, but the role of various inflammatory cytokines has been specified. This study has provided a comparison between the level of interleukin-17 (IL17) in the serum and tears of case and control groups, and also the relationship between the level of this interleukin with severity of signs and symptoms of the disease. MATERIALS AND METHODS: This case-control study has been accomplished on 40 individuals (20 healthy people and 20 patients who suffer from VKC) in Al-Zahra Eye Center in 2014...
July 15, 2016: Seminars in Ophthalmology
https://www.readbyqxmd.com/read/27411907/treatment-of-primary-sj%C3%A3-gren-syndrome
#17
REVIEW
Alain Saraux, Jacques-Olivier Pers, Valérie Devauchelle-Pensec
Primary Sjögren syndrome (pSS) is a progressive autoimmune disease characterized by sicca and systemic manifestations. In this Review, we summarize the available data on topical and systemic medications, according to clinical signs and disease activity, and we describe the ongoing studies using biologic drugs in the treatment of pSS. Expanding knowledge about the epidemiology, classification criteria, systemic activity scoring (ESSDAI) and patient-reported outcomes (ESSPRI) is driving active research. Treatment decisions are based on the evaluation of symptoms and extraglandular manifestations...
August 2016: Nature Reviews. Rheumatology
https://www.readbyqxmd.com/read/27356868/angiogenin-ameliorates-corneal-opacity-and-neovascularization-via-regulating-immune-response-in-corneal-fibroblasts
#18
Seung Hoon Lee, Kyoung Woo Kim, Kwangsic Joo, Jae Chan Kim
BACKGROUND: Angiogenin (ANG), a component of tears, is involved in the innate immune system and is related with inflammatory disease. We investigated whether ANG has an immune modulatory function in human corneal fibroblasts (HCFs). METHODS: HCFs were cultured from excised corneal tissues. The gene or protein expression levels of interleukin (IL)-1beta (β), IL-4, IL-6, IL-8, IL-10, complements, toll-like receptor (TLR)4, myeloid differentiation primary response gene (MYD)88, TANK-binding kinase (TBK)1, IkappaB kinase-epsilon (IKK-ε) and nuclear factor-kappaB (NF-κB) were analyzed with or without ANG treatment in tumor necrosis factor-alpha (TNF-α)- or lipopolysaccharide (LPS)-induced inflammatory HCFs by real-time polymerase chain reaction (PCR), Western blotting and immunocytochemistry...
2016: BMC Ophthalmology
https://www.readbyqxmd.com/read/27354762/development-of-lifitegrast-a-novel-t-cell-inhibitor-for-the-treatment-of-dry-eye-disease
#19
REVIEW
Charles P Semba, Thomas R Gadek
Dry eye disease (DED) is a multifactorial disorder of the ocular surface characterized by symptoms of discomfort, decreased tear quality, and chronic inflammation that affects an estimated 20 million patients in the US alone. DED is associated with localized inflammation of the ocular surface and periocular tissues leading to homing and activation of T cells, cytokine release, and development of hyperosmolar tears. This inflammatory milieu results in symptoms of eye dryness and discomfort. Homing of T cells to the ocular surface is influenced by the binding of lymphocyte function-associated antigen-1 (LFA-1; CD11a/CD18; αLβ2), a cell surface adhesion protein, to its cognate ligand, intercellular adhesion molecule-1 (ICAM-1; CD54), which is expressed on inflamed ocular/periocular epithelium and vascular endothelium...
2016: Clinical Ophthalmology
https://www.readbyqxmd.com/read/27337217/the-effect-of-the-aqueous-extract-of-bidens-pilosa-l-on-androgen-deficiency-dry-eye-in-rats
#20
Chuanwei Zhang, Kai Li, Zichao Yang, Yuliang Wang, Haipeng Si
BACKGROUND/AIMS: Bidens pilosa L. (Bp) is widely distributed in China and has been widely used as a traditional Chinese medicine. The aim of this study was to examine the effect of the extract of Bp on androgen deficiency dry eye and determine its possible mechanisms. METHODS: Twenty-four rats were randomly divided into four groups: Group Con (control), Group Sal (physiological saline), Group Fin (oral finasteride), and Group Bp (oral finasteride and Bp). The dry eye model was established in group Fin and group Bp...
2016: Cellular Physiology and Biochemistry
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