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Aging and immunity

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https://www.readbyqxmd.com/read/28214954/association-of-toll-like-receptor-4-single-nucleotide-polymorphisms-asp299gly-and-thr399ile-with-the-risk-of-primary-open-angle-glaucoma
#1
Jose Navarro-Partida, Abril Bernardette Martinez-Rizo, Pedro Ramirez-Barrera, Jesus Bernardino Velazquez-Fernandez, Veronica A Mondragon-Jaimes, Arturo Santos-Garcia, Veronica Benites-Godinez
PURPOSE: Toll-like receptor 4 (TLR4) is a transmembrane receptor that mediates immune responses to exogenous and endogenous ligands. Previously, non-coding single nucleotide polymorphisms (SNPs) in the TLR4 gene were related to primary open angle glaucoma (POAG). This study was undertaken to investigate whether coding TLR4 Asp299Gly (rs4986790 A/G) and Thr399Ile (rs4986791 C/T) are associated with POAG in a Mexican population. METHODS: One hundred and eighty-seven unrelated Mexican patients with POAG (94 men and 95 women; mean age 66...
February 18, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28214912/-the-active-offering-of-measles-rubella-and-mumps-vaccine-in-new-mothers-the-experience-of-health-facilities-in-one-of-the-local-health-unit-of-rome-lazio-italy
#2
Viviana Santoro, Valentina Pettinicchio, Andreina Lancia, Cristiana Vazzoler, Francesca De Luca, Elisabetta Franco
Rubella is a contagious disease that can be very serious, especially in unvaccinated pregnant women. The best way to be protected is getting vaccinated: MMR vaccine is very effective at protecting people against measles, mumps, and rubella, and preventing the complications caused by these diseases. According to PASSI 2012-2015 (the Italian behavioral risk factor surveillance system) in the territory of ex ASL Roma C only 56% of women between 18 and 49 years were immunized against rubella, thanks to vaccination (34%) or past infection detected by rubeotest (22%); 2% was susceptible and 42% of respondents did not know their immune status against rubella...
November 2016: Igiene e Sanità Pubblica
https://www.readbyqxmd.com/read/28214872/higher-numbers-of-t-bet-tumor-infiltrating-lymphocytes-associate-with-better-survival-in-human-epithelial-ovarian-cancer
#3
Yun Xu, Lujun Chen, Bin Xu, Yuqi Xiong, Min Yang, Xiaohui Rui, Liangrong Shi, Changping Wu, Jingting Jiang, Binfeng Lu
BACKGROUND/AIMS: T-bet, a member of the T-box family of transcription factors, is a key marker of type I immune response within the tumor microenvironment, and has been previously reported by us to serve as an important prognostic indicator for human gastric cancer patients and a potential biomarker for immunotherapy. In the present study, we aimed to assess the clinical significance and prognostic value of T-bet+ tumor-infiltrating lymphocytes in human epithelial ovarian cancer. METHODS: The immunohistochemistry was used to analyze the infiltration density of T-bet+ lymphoid cells in human epithelial ovarian cancer tissues, and the flow cytometry analysis was used to further analyze the presence of T-bet+ tumor-infiltrating lymphocytes subgroups in cancer tissues...
January 30, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214181/-adult-immunisation-general-points-hot-topics-and-perspectives
#4
P Loubet, O Launay
Vaccination in immunocompetent adult mainly concerns booster vaccination against diphtheria, tetanus, polio and pertussis. Some chronic diseases may also require the achievement of pneumococcal and influenza vaccines. In addition, from the age of 65, annual influenza vaccination as well as one dose of a live attenuated shingles vaccine between 64 and 75 years are recommended. Immunocompromised adults, due to the increased risk of serious infections responsible of significant morbidity and mortality, are particularly concerned by vaccination...
February 14, 2017: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/28214147/simultaneous-idiopathic-bilateral-sudden-hearing-loss-characteristics-and-response-to-treatment
#5
Ferit Akil, Umur Yollu, Mehmet Yilmaz, H Murat Yener, Marlen Mamanov, Ender Inci
INTRODUCTION: The aetiology of sudden hearing loss is poorly defined; however, infectious, vascular and neoplastic aetiologies are presumed to be responsible. In addition, the aetiology of bilateral sudden hearing loss is also unknown. OBJECTIVE: The objective of this study is identify the characteristics and treatment response of simultaneous bilateral sudden hearing loss. METHODS: This is a case-control study that practised in tertiary care academic centre...
January 24, 2017: Brazilian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/28213974/molecular-characterization-and-clinical-epidemiology-of-human-respiratory-syncytial-virus-hrsv-a-and-b-in-hospitalized-children-southern-brazil
#6
F B Moreira, C S Rosario, J S Santos, V M Avanzi, M B Nogueira, L R Vidal, S M Raboni
Human respiratory syncytial virus (HRSV) is a major etiologic agent of pediatric respiratory infections. Genetic variability of its glycoprotein G enables HRSV to evade the immune response and determines its seasonal dissemination. This study reports genetic variability and clinical profiles of HRSV-infected patients from Southern Brazil. Seventy positive samples, 78% type A and 22% type B, were analyzed. Of the patients (median age, 6 months; interquartile range, 2-11 years) 16% had co-morbidities and 17% developed severe disease...
February 18, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28213784/microglia-in-the-primate-macula-specializations-in-microglial-distribution-and-morphology-with-retinal-position-and-with-aging
#7
Janani Singaravelu, Lian Zhao, Robert N Fariss, T Michael Nork, Wai T Wong
Microglia, the principal resident immune cell in the retina, play constitutive roles in immune surveillance and synapse maintenance, and are also associated with retinal disease, including those occurring in the macula. Perspectives on retinal microglia function have derived largely from rodent models and how these relate to the macula-bearing primate retina is unclear. In this study, we examined microglial distribution and cellular morphology in the adult rhesus macaque retina, and performed comparative characterizations in three retinal locations along the center-to-periphery axis (parafoveal, macular, and the peripheral retina)...
February 17, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/28213132/surveillance-or-engagement-children-s-conflicts-during-health-maintenance-visits
#8
Sarah Polk, Russell Horwitz, Shaina Longway, Alfonso Bonilla, Kate Fothergill, Marc Karver, Peter Salmon, Lawrence Wissow
OBJECTIVE: School-aged health maintenance visits seek to prevent or intervene early with health issues of life-long importance. Little is known about what children expect to happen in these visits or how they experience them, factors related to their engagement as active collaborators in care. METHODS: Thirty children (53% Latino, 27% African-American and 20% White) age 7-11 years were video recorded during a health maintenance visit and then interviewed while reviewing the videos...
February 14, 2017: Academic Pediatrics
https://www.readbyqxmd.com/read/28213050/reduced-frequency-of-two-activating-kir-genes-in-patients-with-sepsis
#9
Luciana M Oliveira, Pamela Portela, Joice Merzoni, Juliana D Lindenau, Fernando S Dias, Jaqueline Beppler, Pietra Graebin, Clarice S Alho, Gilberto Schwartsmann, Felipe Dal-Pizzol, Luiz Fernando Jobim, Mariana Jobim, Rafael Roesler
Natural killer (NK) cell activity is regulated by activating and inhibitory signals transduced by killer cell immunoglobulin-like receptors (KIR). Diversity in KIR gene repertoire among individuals may affect disease outcome. Sepsis development and severity may be influenced by genetic factors affecting the immune response. Here, we examined sixteen KIR genes and their human leucocyte antigen (HLA) class I ligands in critical patients, aiming to identify patterns that could be associated with sepsis. Male and female patients (ages ranging between 14 and 94 years-old) were included...
February 14, 2017: Human Immunology
https://www.readbyqxmd.com/read/28210456/severe-odontogenic-infection-an-emergency-case-report
#10
Marcelo Guzmán-Letelier, Claudia Crisosto-Jara, Camilo Diaz-Ricouz, Miguel Peñarrocha-Diago, David Peñarrocha-Oltra
Odontogenic infections (OI) are a major reason for consultation in dental practice. They affect people of all ages, and most of them respond well to current medical and surgical treatments. However, some OI can spread to vital and deep structures, overcome the host immune system - especially in diabetic, immunocompromised or weakened patients - and even prove fatal. Ludwig's angina is a severe form of diffuse cellulitis that can have an acute onset and spread very rapidly, bilaterally affecting areas of the head and neck, and may prove life threatening...
February 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28209996/transient-cannabinoid-receptor-2-blockade-during-immunization-heightens-intensity-and-breadth-of-antigen-specific-antibody-responses-in-young-and-aged-mice
#11
Emmanuel Dotsey, Irina Ushach, Egest Pone, Rie Nakajima, Algis Jasinskas, Donovan A Argueta, Andrea Dillon, Nicholas DiPatrizio, Huw Davies, Albert Zlotnik, Peter D Crompton, Philip L Felgner
The hallmark of vaccines is their ability to prevent the spread of infectious pathogens and thereby serve as invaluable public health tool. Despite their medical relevance, there is a gap in our understanding of the physiological factors that mediate innate and adaptive immune response to vaccines. The endocannabinoid (eCB) system is a critical modulator of homeostasis in vertebrates. Our results indicate that macrophages and dendritic cells produce the endocannabinoid, 2-arachidonoyl-sn-glycerol (2-AG) upon antigen activation...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28209587/genome-surgery-using-cas9-ribonucleoproteins-for-the-treatment-of-age-related-macular-degeneration
#12
Kyoungmi Kim, Sung Wook Park, Jin Hyoung Kim, Seung Hwan Lee, Daesik Kim, Taeyoung Koo, Kwang-Eun Kim, Jeong Hun Kim, Jin-Soo Kim
RNA-guided genome surgery using CRISPR-Cas9 nucleases has shown promise for the treatment of diverse genetic diseases. Yet, the potential of such nucleases for therapeutic applications in nongenetic diseases is largely unexplored. Here, we focus on age-related macular degeneration (AMD), a leading cause of blindness in adults, which is associated with retinal overexpression of, rather than mutations in, the VEGFA gene. Subretinal injection of preassembled, Vegfa gene-specific Cas9 ribonucleoproteins (RNPs) into the adult mouse eye gave rise to mutagenesis at the target site in the retinal pigment epithelium...
February 16, 2017: Genome Research
https://www.readbyqxmd.com/read/28209472/role-of-antioxidants-in-horse-serum-mediated-vasculitis-in-swine-potential-relevance-to-early-treatment-in-mitigation-of-coronary-arteritis-in-kawasaki-disease
#13
Saji Philip, Wen-Chuan Lee, Kotturathu Mammen Cherian, Mei-Hwan Wu, Hung-Chi Lue
BACKGROUND: Horse serum-induced immune complex coronary vasculitis in swine is the first experimental model to mimic most of the pictures of Kawasaki disease. Immune complex mechanism has been implicated as one of the possible mechanisms in the pathogenesis of vasculitis in Kawasaki disease. Antioxidants have a significant role in the reduction of cardiovascular diseases in both human and animal studies. We tried giving vitamins A, E, and C to treat immune complex vasculitis, in the hope of mitigating coronary vasculitis in Kawasaki disease...
December 18, 2016: Pediatrics and Neonatology
https://www.readbyqxmd.com/read/28209436/is-colombia-reaching-the-goals-on-infant-immunization-coverage-a-quantitative-survey-from-80-municipalities
#14
Javier Narváez, May Bibiana Osorio, Carlos Castañeda-Orjuela, Nelson Alvis Zakzuk, Natalia Cediel, Luz Ángela Chocontá-Piraquive, Fernando de La Hoz-Restrepo
OBJECTIVES: This study aimed to evaluate the coverage of the Colombian Expanded Program on Immunization among children less than 6years old, to evaluate the timeliness of immunization, to assess the coverage of newly introduced vaccines, and to identify factors associated with lack of immunization. METHODS: We conducted a cross-sectional survey in 80 municipalities of Colombia, using a two-stage cluster random sampling. We attempted to contact all children less than 6years old living in the sampled blocks, and asked their caregivers to provide immunization record cards...
February 13, 2017: Vaccine
https://www.readbyqxmd.com/read/28208028/early-life-wildfire-smoke-exposure-is-associated-with-immune-dysregulation-and-lung-function-decrements-in-adolescence
#15
Carolyn Black, Joan E Gerriets, Justin H Fontaine, Richart W Harper, Nicholas J Kenyon, Fern Tablin, Edward S Schelegle, Lisa A Miller
RATIONALE: The long-term health effects of wildfire smoke exposure in pediatric populations are not known. OBJECTIVE: To determine if early life exposure to wildfire smoke can affect parameters of immunity and airways physiology that are detectable with maturity. METHODS: We studied a mixed gender cohort of rhesus macaque monkeys that were exposed as infants to ambient wood smoke from a series of Northern California wildfires in the summer of 2008...
February 16, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28207940/structural-and-functional-changes-to-lymph-nodes-in-ageing-mice
#16
Vivian M Turner, Neil A Mabbott
Lymph nodes (LN) are secondary lymphoid organs spread throughout the lymphatic system. They function to filter pathogenic material from the lymphatic fluid to maintain the health of the organism. Subcapsular sinus macrophages (SCSM) are amongst the first-responders within the LN due to their strategic location within the subcapsular sinus region. These macrophages aid the delivery of immune complexes to B cells and follicular dendritic cells (FDC) within the LN. Here we show an increase in SCSM and other macrophage populations within aged LN...
February 16, 2017: Immunology
https://www.readbyqxmd.com/read/28207888/effect-of-the-different-13-valent-pneumococcal-conjugate-vaccination-uptakes-on-the-invasive-pneumococcal-disease-in-children-analysis-of-a-hospital-based-and-population-based-surveillance-study-in-madrid-spain-2007-2015
#17
Juan Picazo, Jesús Ruiz-Contreras, Juan Casado-Flores, Sagrario Negreira, Fernando Baquero, Teresa Hernández-Sampelayo, Enrique Otheo, Cristina Méndez
In the Community of Madrid, the 13-valent pneumococcal conjugate vaccine (PCV13) replaced the 7-valent (PCV7) in the fully government-funded Regional Immunization Program (RIP) in May, 2010, but was later excluded in May, 2012, and included again in January, 2015. These unique changes allowed us to assess the impact of the different pneumococcal vaccination policies on PCV13 uptake in infants and on the incidence rate (IR) of invasive pneumococcal disease (IPD) in children <15 years old. In this prospective, active, surveillance study, we estimated PCV13 uptakes, IR and incidence rate ratios (IRR) for total IPD and for IPD caused by PCV13- and non-PCV13 serotypes in children <15 years, stratified by age, in four periods with different vaccination policies: fully government-funded PCV7 vaccination, fully government-funded PCV13, mixed public/private funding and only private funding...
2017: PloS One
https://www.readbyqxmd.com/read/28207689/interim-estimates-of-2016-17-seasonal-influenza-vaccine-effectiveness-united-states-february-2017
#18
Brendan Flannery, Jessie R Chung, Swathi N Thaker, Arnold S Monto, Emily T Martin, Edward A Belongia, Huong Q McLean, Manjusha Gaglani, Kempapura Murthy, Richard K Zimmerman, Mary Patricia Nowalk, Michael L Jackson, Lisa A Jackson, Angie Foust, Wendy Sessions, LaShondra Berman, Sarah Spencer, Alicia M Fry
In the United States, annual vaccination against seasonal influenza is recommended for all persons aged ≥6 months (1). Each influenza season since 2004-05, CDC has estimated the effectiveness of seasonal influenza vaccine to prevent influenza-associated, medically attended, acute respiratory illness (ARI). This report uses data, as of February 4, 2017, from 3,144 children and adults enrolled in the U.S. Influenza Vaccine Effectiveness Network (U.S. Flu VE Network) during November 28, 2016-February 4, 2017, to estimate an interim adjusted effectiveness of seasonal influenza vaccine for preventing laboratory-confirmed influenza virus infection associated with medically attended ARI...
February 17, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28207204/concise-review-increasing-the-validity-of-cerebrovascular-disease-models-and-experimental-methods-for-translational-stem-cell-research
#19
Johannes Boltze, Franziska Nitzsche, Jukka Jolkkonen, Gesa Weise, Claudia Pösel, Björn Nitzsche, Daniel-Christoph Wagner
Interspecies differences, anatomical and physiological aspects as wells as simplified study designs contribute to an overestimation of treatment effects and limit the transferability of experimental results into clinical applications. Confounders of cell therapies for cerebrovascular disorders (CVD) include common CVD comorbidities, frequent medications potentially affecting endogenous and transplanted stem cells, as well as age- and immune-system-related effects. All of those can contribute to a substantial modelling bias, ultimately limiting the prospective quality of preclinical research programs regarding the clinical value of a particular cell therapy...
February 16, 2017: Stem Cells
https://www.readbyqxmd.com/read/28205331/new-insights-to-the-mechanisms-underlying-atherosclerosis-in-rheumatoid-arthritis
#20
REVIEW
Mahdi Mahmoudi, Saeed Aslani, Reza Fadaei, Ahmad Reza Jamshidi
Rheumatoid arthritis (RA) is an inflammatory circumstance, which has been associated with increased risk of cardiovascular disease (CVD). Although RA management has been promoted, mortality rate due to CVD remains remarkable. Approximately, 50% of premature death cases in RA are attributable to CVD. RA patients develop atherosclerosis in a greater amount than the general population. Moreover, atherosclerotic lesions develop rapidly in RA patients and might be more susceptible to rupture. The inflammatory condition of RA, such as cytokines, abnormally activated immune cells, play a role in the initiation, perpetuation and exacerbation of atherosclerosis...
February 16, 2017: International Journal of Rheumatic Diseases
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