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Aging and immunity

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https://www.readbyqxmd.com/read/28087881/role-of-stim2-in-cell-function-and-physiopathology
#1
Alejandro Berna-Erro, Isaac Jardin, Gines M Salido, Juan A Rosado
An endoplasmic reticulum (ER)-resident protein that regulates cytosolic and ER free-Ca(2+) concentration by induction of store-operated calcium entry. That is the original definition of STIM2 and its function. While its activity strongly depends on the amount of calcium stored in the ER, its function goes further to intracellular signalling and gene expression. Initially undercovered by the prominent function of STIM1, STIM2 became to be vital in mice, gradually emerging as an important player in the nervous system, and cooperating with STIM1 in the immune system...
January 14, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28087676/the-longitudinal-study-of-aging-in-human-young-adults-knowledge-gaps-and-research-agenda
#2
Terrie E Moffitt, Daniel W Belsky, Andrea Danese, Richie Poulton, Avshalom Caspi
BACKGROUND: To prevent onset of age-related diseases and physical and cognitive decline, interventions to slow human aging and extend health span must eventually be applied to people while they are still young and healthy. Yet most human aging research examines older adults, many with chronic disease, and little is known about aging in healthy young humans. METHOD: This article explains how this knowledge gap is a barrier to extending health span and puts forward the case that geroscience should invest in researching the pace of aging in young adults...
February 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28086819/efficacy-safety-and-effectiveness-of-licensed-rotavirus-vaccines-a-systematic-review-and-meta-analysis-for-latin-america-and-the-caribbean
#3
Raúl F Velázquez, Alexandre C Linhares, Sergio Muñoz, Pamela Seron, Pedro Lorca, Rodrigo DeAntonio, Eduardo Ortega-Barria
BACKGROUND: RotaTeq™ (RV5; Merck & Co. Inc., USA) and Rotarix™ (RV1, GlaxoSmithKline, Belgium) vaccines, developed to prevent rotavirus diarrhea in children under five years old, were both introduced into national immunization programs in 2006. As many countries in Latin America and the Caribbean have included either RV5 or RV1 in their routine childhood vaccination programs, we conducted a systematic review and meta-analysis to analyze efficacy, safety and effectiveness data from the region...
January 13, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28086763/the-prevalence-and-factors-associated-with-malnutrition-among-infants-with-cleft-palate-and-or-lip-at-a-hospital-in-uganda-a-cross-sectional-study
#4
Martin Tungotyo, Daniel Atwine, Deborah Nanjebe, Andrew Hodges, Martin Situma
BACKGROUND: To determine the prevalence and factors associated with malnutrition among infants with Cleft palate and/or cleft lip (CP+/-L) at Comprehensive Rehabilitation for Uganda Hospital (CoRSU) in Uganda. METHODS: This was a cross-sectional study done on infants with CP+/-L and their caretakers admitted between November 2013 and October 2014 at CoRSU hospital which was the study setting. A questionnaire was answered by the infants' caretakers. The main outcome measure, malnutrition was defined and classified based on Z-scores obtained using the W...
January 13, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28081328/cytomegalovirus-hepatitis-in-49-pediatric-patients-with-normal-immunity
#5
Hasan Tezer, Saliha Kanık Yüksek, Belgin Gülhan, Aslı Nur Özkaya Parlakay, Ceyda Tuna Kırsaçlıoğlu
BACKGROUND/AIM: Cytomegalovirus (CMV) hepatitis is generally asymptomatic or rarely can lead to severe complications in immunocompetent hosts. This study aims to evaluate CMV hepatitis in immunocompetent young children, which is discussed relatively rarely in the literature. MATERIALS AND METHODS: A retrospective review of 49 pediatric patients with CMV hepatitis from January 2005 to December 2010 was performed. RESULTS: The median age of the patients was 5...
December 20, 2016: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28081056/guidance-for-assessment-of-poliovirus-vaccination-status-and-vaccination-of-children-who-have-received-poliovirus-vaccine-outside-the-united-states
#6
Mona Marin, Manisha Patel, Steve Oberste, Mark A Pallansch
In 1988, the World Health Assembly resolved to eradicate poliomyelitis (polio). Since then, wild poliovirus (WPV) cases have declined by >99.9%, from an estimated 350,000 cases of polio each year to 74 cases in two countries in 2015 (1). This decrease was achieved primarily through the use of trivalent oral poliovirus vaccine (tOPV), which contains types 1, 2, and 3 live, attenuated polioviruses. Since 2000, the United States has exclusively used inactivated polio vaccine (IPV), which contains all three poliovirus types (2,3)...
January 13, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28081048/a-prospective-cohort-study-of-common-childhood-infections-in-south-african-hiv-exposed-uninfected-and-hiv-unexposed-infants
#7
Amy L Slogrove, Monika M Esser, Mark F Cotton, David P Speert, Tobias R Kollmann, Joel Singer, Julie A Bettinger
BACKGROUND: Much evidence of HIV-exposed uninfected (HEU) infant infectious morbidity predates availability of maternal combination antiretroviral therapy and does not control for universal risk factors (preterm birth, low birth weight, suboptimal breastfeeding and poverty). METHODS: This prospective cohort study identified HIV-infected and HIV-uninfected mothers and their newborns from South African community midwife unit. The primary outcome, infectious cause hospitalization or death before 6 months of age, was compared between HEU and HIV-unexposed (HU) infants and classified for type and severity using validated study-specific case definitions...
February 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28079828/vaccination-with-10-valent-pneumococcal-conjugate-vaccine-in-infants-according-to-hiv-status
#8
Shabir A Madhi, Anthonet Koen, Lisa Jose, Nadia van Niekerk, Peter V Adrian, Clare Cutland, Nancy François, Javier Ruiz-Guiñazú, Juan-Pablo Yarzabal, Marta Moreira, Dorota Borys, Lode Schuerman
BACKGROUND: Phase III, open-label, single-center, controlled study in South Africa (ClinicalTrials.gov: NCT00829010) to evaluate immunogenicity, reactogenicity, and safety of the 10-valent pneumococcal non-typeable Haemophilus influenzae protein D conjugate vaccine (PHiD-CV) in human immunodeficiency virus (HIV)-infected (HIV+), HIV-exposed-uninfected (HEU), and HIV-unexposed-uninfected (HUU) children. METHODS: Children stratified by HIV status received PHiD-CV primary vaccination (age 6/10/14 weeks; coadministered with routine childhood vaccines) and booster dose (age 9-10 months)...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28079818/factors-associated-with-syphilis-incidence-in-the-hiv-infected-in-the-era-of-highly-active-antiretrovirals
#9
Mohaned Shilaih, Alex Marzel, Dominique L Braun, Alexandra U Scherrer, Helen Kovari, Jim Young, Alexandra Calmy, Katharine Darling, Manuel Battegay, Matthias Hoffmann, Enos Bernasconi, Maria C Thurnheer, Huldrych F Günthard, Roger D Kouyos
After several years of steady decline, syphilis is reemerging globally as a public health hazard, especially among people living with human immunodeficiency virus (HIV). Syphilis resurgence is observed mainly in men who have sex with men (MSM), yet other transmission groups are affected too. In this manuscript, we study the factors associated with syphilis incidence in the Swiss HIV cohort study in the era of highly effective antiretrovirals. Using parametric interval censored models with fixed and time-varying covariates, we studied the immunological, behavioral, and treatment-related elements associated with syphilis incidence in 3 transmission groups: MSM, heterosexuals, and intravenous drug users...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28078756/infections-in-non-splenectomized-persistent-or-chronic-primary-immune-thrombocytopenia-adults-risk-factors-and-vaccination-effect
#10
Guillaume Moulis, Maryse Lapeyre-Mestre, Aurore Palmaro, Laurent Sailler
INTRODUCTION: Risk factors for infection and protective effect of vaccines in immune thrombocytopenia (ITP) patients in the era of rituximab therapy are unknown. OBJECTIVES: To assess the risk factors for serious and non-serious infections (respectively, SIs and NSIs) in non-splenectomized adults treated for persistent or chronic primary ITP, including the effect of pneumococcal and influenza vaccines. PATIENTS/METHODS: The population was the 2009-2012 FAITH cohort (n=1805), which is the cohort of all incident (newly diagnosed) primary ITP adults treated >3months in France built in the national health insurance database (SNIIRAM)...
January 12, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28078323/genetic-architecture-of-age-related-cognitive-decline-in-african-americans
#11
Towfique Raj, Lori B Chibnik, Cristin McCabe, Andus Wong, Joseph M Replogle, Lei Yu, Sujuan Gao, Frederick W Unverzagt, Barbara Stranger, Jill Murrell, Lisa Barnes, Hugh C Hendrie, Tatiana Foroud, Anna Krichevsky, David A Bennett, Kathleen S Hall, Denis A Evans, Philip L De Jager
OBJECTIVE: To identify genetic risk factors associated with susceptibility to age-related cognitive decline in African Americans (AAs). METHODS: We performed a genome-wide association study (GWAS) and an admixture-mapping scan in 3,964 older AAs from 5 longitudinal cohorts; for each participant, we calculated a slope of an individual's global cognitive change from neuropsychological evaluations. We also performed a pathway-based analysis of the age-related cognitive decline GWAS...
February 2017: Neurology. Genetics
https://www.readbyqxmd.com/read/28077626/low-dose-or-low-dose-rate-ionizing-radiation-induced-bioeffects-in-animal-models
#12
REVIEW
Feng Ru Tang, Weng Keong Loke, Boo Cheong Khoo
Animal experimental studies indicate that acute or chronic low-dose ionizing radiation (LDIR) (≤100 mSv) or low-dose-rate ionizing radiation (LDRIR) (<6 mSv/h) exposures may be harmful. It induces genetic and epigenetic changes and is associated with a range of physiological disturbances that includes altered immune system, abnormal brain development with resultant cognitive impairment, cataractogenesis, abnormal embryonic development, circulatory diseases, weight gain, premature menopause in female animals, tumorigenesis and shortened lifespan...
January 10, 2017: Journal of Radiation Research
https://www.readbyqxmd.com/read/28077609/travellers-and-influenza-risks-and-prevention
#13
REVIEW
M Goeijenbier, P van Genderen, B J Ward, A Wilder-Smith, R Steffen, A D M E Osterhaus
BACKGROUND: Influenza viruses are among the major causes of serious human respiratory tract infection worldwide. In line with the high disease burden attributable to influenza, these viruses play an important, but often neglected, role in travel medicine. Guidelines and recommendations regarding prevention and management of influenza in travellers are scarce. Of special interest for travel medicine are risk populations and also circumstances that facilitate influenza virus transmission and spread, like travel by airplane or cruise ship and mass gatherings...
January 2017: Journal of Travel Medicine
https://www.readbyqxmd.com/read/28077318/alcohol-microbiome-life-style-influence-alcohol-and-non-alcoholic-organ-damage
#14
REVIEW
Manuela G Neuman, Samuel W French, Samir Zakhari, Stefen Malnick, Helmut K Seitz, Lawrence B Cohen, Mikko Salaspuro, Andreea Voinea Griffin, Andrei Barasch, Irina A Kirpich, Paul G Thomes, Laura W Schrum, Terrence M Donohue, Kusum Kharbanda, Marcus Cruz, Mihai Opris
This paper is based upon the "8th Charles Lieber's Satellite Symposium" organized by Manuela G. Neuman at the Research Society on Alcoholism Annual Meeting, onJune 25, 2016 at New Orleans, Louisiana, USA. The integrative symposium investigated different aspects of alcohol-induced liver disease (ALD) as well as non-alcohol-induced liver disease (NAFLD) and possible repair. We revealedthe basic aspects of alcohol metabolism that may be responsible for the development of liver diseaseas well as the factors that determine the amount, frequency and which type of alcohol misuse leads to liver and gastrointestinal diseases...
January 7, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/28077161/mathematical-modelling-of-echinococcus-multilocularis-abundance-in-foxes-in-zurich-switzerland
#15
Belen Otero-Abad, Simon R Rüegg, Daniel Hegglin, Peter Deplazes, Paul R Torgerson
BACKGROUND: In Europe, the red fox (Vulpes vulpes) is the main definitive host of Echinococcus multilocularis, the aetiological agent of a severe disease in humans called alveolar echinococcosis. The distribution of this zoonotic parasite among the fox population is remarkably aggregated with few heavily infected animals harbouring much of the parasite burdens and being responsible for most of the environmental parasitic egg contamination. Important research questions explored were: (i) spatial differences in parasite infection pressure related to the level of urbanization; (ii) temporal differences in parasite infection pressure in relation to time of the year; (iii) is herd immunity or an age-dependent infection pressure responsible for the observed parasite abundance; (iv) assuming E...
January 11, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28077047/extended-infusion-compared-to-standard-infusion-cefepime-as-empiric-treatment-of-febrile-neutropenia
#16
Rebekah H Wrenn, David Cluck, LeAnne Kennedy, Christopher Ohl, John C Williamson
Background Extended infusion (EI) dosing provides a longer time above the minimum inhibitory concentration, which is important for the clinical success of β-lactam antibiotics, especially for patients with impaired immunity. The aim of this study was to determine the feasibility and clinical impact of administering cefepime by EI as treatment of febrile neutropenia. Methods This was a prospective, randomized, comparative pilot study. All patients received cefepime 2 g IV every 8 h, with the first dose administered using a 30-min infusion...
January 1, 2017: Journal of Oncology Pharmacy Practice
https://www.readbyqxmd.com/read/28077023/hiv-associated-sub-acute-sclerosing-panencephalitis-an-emerging-threat
#17
Abi Manesh, Mahesh Moorthy, Rini Bandopadhyay, Priscilla Rupali
Earlier age of measles virus infection predisposes to development of sub-acute sclerosing panencephalitis (SSPE) and this risk is heightened in HIV-infected children. We describe a HIV-infected young adult on antiretroviral therapy, presenting with a non-classical, fulminant form of SSPE to highlight the unpredictable nature of measles presentation. The recent spate of measles outbreaks due to virus introduction in populations with sub-optimal vaccine coverage or waning immunity and co-existing paediatric HIV cohorts is a cause for concern...
January 1, 2017: International Journal of STD & AIDS
https://www.readbyqxmd.com/read/28076799/adenylyl-cyclase-type-9-gene-polymorphisms-are-associated-with-asthma-and-allergy-in-brazilian-children
#18
Helena M P Teixeira, Neuza M Alcantara-Neves, Maurício Barreto, Camila A Figueiredo, Ryan S Costa
Asthma is a chronic inflammatory disease of the respiratory tract. This heterogeneous disease is caused by the interaction of interindividual genetic variability and environmental factors. The gene adenylyl cyclase type 9 (ADCY9) encodes a protein called adenylyl cyclase (AC), responsible for producing the second messenger cyclic AMP (cAMP). cAMP is produced by T regulatory cells and is involved in the down-regulation of T effector cells. Failures in cAMP production may be related to an imbalance in the regulatory immune response, leading to immune-mediated diseases, such as allergic disorders...
January 8, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28076428/does-measles-vaccination-reduce-the-risk-of-acute-respiratory-infection-ari-and-diarrhea-in-children-a-multi-country-study
#19
Rahul Bawankule, Abhishek Singh, Kaushalendra Kumar, Sadanand Shetye
BACKGROUND: Pneumonia and diarrhea occur either as complications or secondary infections in measles affected children. So, the integrated Global Action Plan for Pneumonia and Diarrhea (GAPPD) by WHO and UNICEF includes measles vaccination as preventive measure in children. The objective of the study is to examine the effect of measles vaccination on Acute Respiratory Infection (ARI) and diarrhea in children in the Democratic Republic of Congo, Ethiopia, India, Nigeria, and Pakistan. METHODS: We analyzed data from the most recent rounds of Demographic and Health Surveys (DHS) in the selected countries...
2017: PloS One
https://www.readbyqxmd.com/read/28076376/increased-natural-killer-cell-activation-in-hiv-infected-immunologic-non-responders-correlates-with-cd4-t-cell-recovery-after-antiretroviral-therapy-and-viral-suppression
#20
Zhenwu Luo, Zhen Li, Lisa Martin, Zhiliang Hu, Hao Wu, Zhuang Wan, Michael Kilby, Sonya L Heath, Lei Huang, Wei Jiang
The role of natural killer (NK) cell function in HIV disease especially in the setting of long-term antiretroviral therapy (ART) and viral suppression is not fully understood. In the current study, we have investigated NK cell activation in healthy controls and aviremic ART-treated HIV+ subjects with different degrees of immune restoration. We performed a cross sectional study in 12 healthy controls and 24 aviremic ART-treated HIV-infected subjects including 13 HIV+ subjects with CD4+ T cells above 500 cells/μL defined as "immunologic responders" and 11 HIV+ subjects with CD4+ T cells below 350 cells/μL defined as "immunologic non-responders"...
2017: PloS One
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