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Immunization frequency

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https://www.readbyqxmd.com/read/28221865/cost-effectiveness-of-immune-checkpoint-inhibition-in-braf-wild-type-advanced-melanoma
#1
Christine G Kohn, Simon B Zeichner, Qiushi Chen, Alberto J Montero, Daniel A Goldstein, Christopher R Flowers
Purpose Patients who are diagnosed with stage IV metastatic melanoma have an estimated 5-year relative survival rate of only 17%. Randomized controlled trials of recent US Food and Drug Administration-approved immune checkpoint inhibitors-pembrolizumab (PEM), nivolumab (NIVO), and ipilumumab (IPI)-demonstrate improved patient outcomes, but the optimal treatment sequence in patients with BRAF wild-type metastatic melanoma remains unclear. To inform policy makers about the value of these treatments, we developed a Markov model to compare the cost-effectiveness of different strategies for sequencing novel agents for the treatment of advanced melanoma...
February 21, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28216963/micronutrient-deficiencies-in-patients-with-chronic-atrophic-autoimmune-gastritis-a-review
#2
EDITORIAL
Federica Cavalcoli, Alessandra Zilli, Dario Conte, Sara Massironi
Chronic atrophic autoimmune gastritis (CAAG) is an organ-specific autoimmune disease characterized by an immune response, which is directed towards the parietal cells and intrinsic factor of the gastric body and fundus and leads to hypochlorhydria, hypergastrinemia and inadequate production of the intrinsic factor. As a result, the stomach's secretion of essential substances, such as hydrochloric acid and intrinsic factor, is reduced, leading to digestive impairments. The most common is vitamin B12 deficiency, which results in a megaloblastic anemia and iron malabsorption, leading to iron deficiency anemia...
January 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28215694/comparisons-of-the-humoral-and-cellular-immunity-induced-by-live-a16r-attenuated-spore-and-ava-like-anthrax-vaccine-in-mice
#3
Jin Lv, Ying-Ying Zhang, Xun Lu, Hao Zhang, Lin Wei, Jun Gao, Bin Hu, Wen-Wei Hu, Dun-Zhong Hu, Na Jia, Xin Feng
The live attenuated anthrax vaccine and anthrax vaccine adsorbed (AVA) are two main types of anthrax vaccines currently used in human. However, the immunoprotective mechanisms are not fully understood. In this study, we compared humoral and cellular immunity induced by live A16R spore vaccine and A16R strain derived AVA-like vaccine in mice peripheral blood, spleen and bone marrow. Both A16R spores and AVA-like vaccines induced a sustained IgG antibody response with IgG1/IgG2b subtype dominance. However, A16R spores vaccine induced higher titer of IgG2a compared with AVA-like vaccine, indicating a stronger Th1 response to A16R spores...
February 16, 2017: Biologicals: Journal of the International Association of Biological Standardization
https://www.readbyqxmd.com/read/28214377/reciprocal-translocation-of-small-numbers-of-inbred-individuals-rescues-immunogenetic-diversity
#4
Catherine E Grueber, Jolene T Sutton, Sol Heber, James V Briskie, Ian G Jamieson, Bruce C Robertson
Genetic rescue can reduce inbreeding depression and increase fitness of small populations, even when the donor populations are highly inbred. In a recent experiment involving two inbred island populations of the South Island robin, Petroica australis, reciprocal translocations improved microsatellite diversity and individual fitness. While microsatellite loci may reflect patterns of genome-wide diversity, they generally do not indicate the specific genetic regions responsible for increased fitness. We tested the effectiveness of this reciprocal translocation for rescuing diversity of two immunogenetic regions: toll-like receptor (TLR) and major histocompatibility complex (MHC) genes...
February 18, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28213050/reduced-frequency-of-two-activating-kir-genes-in-patients-with-sepsis
#5
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/28211317/primary-human-cytomegalovirus-hcmv-infection-in-pregnancy
#6
Horst Buxmann, Klaus Hamprecht, Matthias Meyer-Wittkopf, Klaus Friese
BACKGROUND: In 0.5-4% of pregnancies, the prospective mother sustains a primary infection with human cytomegalovirus (HCMV). An HCMV infection of the fetus in the first or second trimester can cause complex post-encephalitic impairment of the infant brain, leading to motor and mental retardation, cerebral palsy, epilepsy, retinal defects, and progressive hearing loss. METHODS: This review is based on pertinent publications from January 2000 to October 2016 that were retrieved by a selective search in PubMed employing the terms "cytomegalovirus and pregnancy" and "congenital cytomegalovirus...
January 27, 2017: Deutsches Ärzteblatt International
https://www.readbyqxmd.com/read/28209290/efficacy-safety-and-pharmacokinetics-of-biosimilars-of-anti-tumor-necrosis-factor-%C3%AE-agents-in-rheumatic-diseases-a-systematic-review-and-meta-analysis
#7
REVIEW
Yuga Komaki, Akihiro Yamada, Fukiko Komaki, Praneeth Kudaravalli, Dejan Micic, Akio Ido, Atsushi Sakuraba
OBJECTIVE: To evaluate the efficacy and safety of biosimilars of anti-tumor necrosis factor (TNF)-α agents compared to their reference agents in immune mediated diseases. METHODS: Electronic databases were searched for randomized controlled trials (RCTs) assessing the efficacy and safety of biosimilars of anti-TNF-α agents compared to their reference agents in patients with various immune mediated diseases. The outcomes were the rates of clinical response and adverse events among patients treated with biosimilars compared to their reference agents...
February 13, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28207945/cd4-cd25-garp-tregs-display-a-compromised-suppressive-function-in-patients-with-dilated-cardiomyopathy
#8
Yuzhen Wei, Kunwu Yu, Hui Wei, Xin Su, Ruirui Zhu, Huairui Shi, Haitao Sun, Quan Luo, Wenbin Xu, Junhui Xiao, Yucheng Zhong, Qiutang Zeng
Dilated cardiomyopathy (DCM) is a lethal inflammatory heart disease and closely connected with dysfunction of the immune system. Glycoprotein -A repetitions predominant (GARP) expressed on activated CD4(+) T cells with suppressive activity has been established. This study aimed to investigate the frequency and function of circulating CD4(+) CD25(+) GARP(+) regulatory T cells (Tregs) in DCM. 45 DCM patients and 46 controls were enrolled in this study. There was a significant increase in peripheral Th1 and Th17 number and their related cytokines (IFN-γ, IL-17), and an obvious decrease in Treg number, TGF-β1 levels and the expression of FOXP3 and GARP in patients with DCM as compared with controls...
February 16, 2017: Immunology
https://www.readbyqxmd.com/read/28205558/plant-based-vaccines-for-oral-delivery-of-type-1-diabetes-related-autoantigens-evaluating-oral-tolerance-mechanisms-and-disease-prevention-in-nod-mice
#9
Amanda L Posgai, Clive H Wasserfall, Kwang-Chul Kwon, Henry Daniell, Desmond A Schatz, Mark A Atkinson
Autoantigen-specific immunological tolerance represents a central objective for prevention of type 1 diabetes (T1D). Previous studies demonstrated mucosal antigen administration results in expansion of Foxp3(+) and LAP(+) regulatory T cells (Tregs), suggesting oral delivery of self-antigens might represent an effective means for modulating autoimmune disease. Early preclinical experiments using the non-obese diabetic (NOD) mouse model reported mucosal administration of T1D-related autoantigens [proinsulin or glutamic acid decarboxylase 65 (GAD)] delayed T1D onset, but published data are conflicting regarding dose, treatment duration, requirement for combinatorial agents, and extent of efficacy...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28205529/genetic-polymorphism-and-evolutionary-differentiation-of-eastern-chinese-han-a-comprehensive-and-comparative-analysis-on-kirs
#10
Caiyong Yin, Li Hu, Huijie Huang, Yanfang Yu, Zheng Li, Qiang Ji, Xiaochao Kong, Zhongqun Wang, Jinchuan Yan, Jiangwei Yan, Bofeng Zhu, Feng Chen
Killer cell immunoglobulin-like receptor genes, namely KIRs, cluster together within the 160 kb genomic DNA region. In this study, we used PCR-SSP approach and successfully identified the genotype of 17 KIR genes in 123 independent healthy donors residing in the Jiangsu province, China. All individuals were positive at the 7 genes. The observed carrier gene frequencies (OFs) of remaining 10 KIRs ranged from 14.63% (KIR2DS3) to 95.93% (KIR3DL1). We found 27 distinct genotypes excluding KIR1D. The most frequent occurred in 63 individuals (51...
February 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28203425/false-positive-hepatitis-c-antibody-test-results-in-left-ventricular-assist-device-recipients-increased-risk-with-age-and-transfusions
#11
Grace Y Minamoto, Doreen Lee, Adriana Colovai, Dana Levy, Ljiljana Vasovic, Keith W Roach, Jonathan Shuter, Daniel Goldstein, David D'Alessandro, Ulrich P Jorde, Victoria A Muggia
Left ventricular assist devices (LVADs) have been successfully used in patients with heart failure. However, LVADs may trigger immune activation, leading to higher frequencies of autoantibodies. We describe the clinical, epidemiological, and laboratory characteristics of LVAD recipients with false positive hepatitis C (FPHC) serology among 39 consecutive adult LVAD recipients who bridged to heart transplantation from January 2007 to January 2013 at Montefiore Medical Center. FPHC patients were identified as those with post-LVAD positive hepatitis C ELISA antibody tests and negative confirmatory testing with hepatitis C RNA PCR and/or radioimmunoblot assay...
January 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28202935/polymorphisms-of-toll-like-receptors-2-and-9-and-severity-and-prognosis-of-bacterial-meningitis-in-chinese-children
#12
Pingping Zhang, Nan Zhang, Linlin Liu, Kai Zheng, Liang Zhu, Junping Zhu, Lina Cao, Yiyuan Jiang, Gang Liu, Qiushui He
Toll-like receptors (TLRs) play a crucial role in innate immunity, protecting the host from bacterial pathogens. We investigated whether bacterial meningitis (BM) in children was associated with gene polymorphisms in TLR2 (rs3804099), TLR3 (rs3775291 and rs3775290) and TLR9 (rs352139 and rs352140). Blood samples were taken from 218 child patients with confirmed BM and 330 healthy adult controls (HC) and polymorphisms of these genes were analyzed by PCR-based sequencing. For TLR2 rs3804099, frequencies of the minor allele C were markedly higher in patients with severe BM (defined as CSF glucose concentration ≤ 1...
February 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28199360/systematic-review-of-statistically-derived-models-of-immunological-response-in-hiv-infected-adults-on-antiretroviral-therapy-in-sub-saharan-africa
#13
Joseph B Sempa, Eva L Ujeneza, Martin Nieuwoudt
INTRODUCTION: In Sub-Saharan African (SSA) resource limited settings, Cluster of Differentiation 4 (CD4) counts continue to be used for clinical decision making in antiretroviral therapy (ART). Here, HIV-infected people often remain with CD4 counts <350 cells/μL even after 5 years of viral load suppression. Ongoing immunological monitoring is necessary. Due to varying statistical modeling methods comparing immune response to ART across different cohorts is difficult. We systematically review such models and detail the similarities, differences and problems...
2017: PloS One
https://www.readbyqxmd.com/read/28199305/sterile-protection-against-human-malaria-by-chemoattenuated-pfspz-vaccine
#14
Benjamin Mordmüller, Güzin Surat, Heimo Lagler, Sumana Chakravarty, Andrew S Ishizuka, Albert Lalremruata, Markus Gmeiner, Joseph J Campo, Meral Esen, Adam J Ruben, Jana Held, Carlos Lamsfus Calle, Juliana B Mengue, Tamirat Gebru, Javier Ibáñez, Mihály Sulyok, Eric R James, Peter F Billingsley, K C Natasha, Anita Manoj, Tooba Murshedkar, Anusha Gunasekera, Abraham G Eappen, Tao Li, Richard E Stafford, Minglin Li, Phil L Felgner, Robert A Seder, Thomas L Richie, B Kim Lee Sim, Stephen L Hoffman, Peter G Kremsner
A highly protective malaria vaccine would greatly facilitate the prevention and elimination of malaria and containment of drug-resistant parasites. A high level (more than 90%) of protection against malaria in humans has previously been achieved only by immunization with radiation-attenuated Plasmodium falciparum (Pf) sporozoites (PfSPZ) inoculated by mosquitoes; by intravenous injection of aseptic, purified, radiation-attenuated, cryopreserved PfSPZ ('PfSPZ Vaccine'); or by infectious PfSPZ inoculated by mosquitoes to volunteers taking chloroquine or mefloquine (chemoprophylaxis with sporozoites)...
February 15, 2017: Nature
https://www.readbyqxmd.com/read/28198981/toll-like-receptor-agonists-porphyromonas-gingivalis-lps-and-cpg-differentially-regulate-il-10-competency-and-frequencies-of-mouse-b10-cells
#15
Zhiqiang Liu, Yang Hu, Pei Yu, Mei Lin, Grace Huang, Toshihisa Kawai, Martin Taubman, Zuomin Wang, Han Xiaozhe
Objective: This study is to determine the effects of P. gingivalis LPS and CpG on B10 cell expansion and IL-10 competency in vitro. Material and Methods: Spleen B cells were isolated from C57BL/6J mice with or without formalin-fixed P. gingivalis immunization. B cells were cultured for 48 hours under the following conditions: CD40L, CD40L+LPS, CD40L+CpG, and CD40L+LPS+CpG in the presence or absence of fixed P. gingivalis. Percentages of CD1dhiCD5+ B cells were measured by flow cytometry...
January 2017: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/28198713/cd1d-restricted-natural-killer-t-cells-are-preserved-in-indian-long-term-non-progressors-ltnps
#16
Dharmendra Singh, Manisha Ghate, Sheela Godbole, Smita Kulkarni, Madhuri Thakar
BACKGROUND: Natural killer T (NKT) cells act as a bridge between innate and adaptive immune responses. Limited information is available regarding the role of NKT cells in the HIV disease progression especially HIV-1 C infection. METHODOLOGY: NKT cells were characterized for their frequency and the activation, aging, exhaustion status and their proliferation ability in 32 long term non progressors (LTNPs), 40 progressors, 18 patients before and after suppressive cART along with 35 HIV-1 negative subjects using multicolor flowcytometry...
February 14, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28198712/changes-in-levels-of-inflammation-following-antiretroviral-treatment-during-early-hiv-infection-in-actg-a5217
#17
Bernard J Macatangay, Ming Yang, Xin Sun, Jessica Morton, Victor DE Gruttola, Susan Little, Christine Hogan, Charles R Rinaldo
BACKGROUND: We evaluated the changes in the levels of soluble biomarkers of inflammation and coagulation and T cell activation among participants of ACTG A5217 who were started on antiretroviral therapy (ART) within the first 6 months of HIV infection. METHODS: Cryopreserved specimens were obtained pre-ART (Week 0), at time of virologic suppression (Week 36), and at 36 weeks after treatment interruption (Week 72). Levels of D-dimer, C-reactive protein (CRP), and soluble CD14 (sCD14) were measured in plasma, while T cell activation levels defined as the frequencies of CD4 and CD8 T cells co-expressing HLA-DR and CD38, were measured in peripheral blood mononuclear cells...
February 14, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28198144/the-phenolic-fraction-of-extra-virgin-olive-oil-modulates-the-activation-and-the-inflammatory-response-of-t-cells-from-patients-with-systemic-lupus-erythematosus-and-healthy-donors
#18
Marina Aparicio-Soto, Marina Sanchez-Hidalgo, Ana Cárdeno Galván, Jose Manuel Lucena, Francisca Gonzalez-Escribano, Maria Jesus Castillo Palma, Catalina Alarcón-de-la-Lastra
SCOPE: Systemic lupus erythematosus (SLE) is a chronic multiorgan autoimmune disease characterized by immune deregulation, which involves altered T-cell response and imbalance of cytokine production. The phenolic fraction (PE) of extra virgin olive oil (EVOO) possesses anti-inflammatory and immunomodulatory properties and exerts preventive effects in murine models of immune-inflammatory diseases, such as SLE. The present study was designed to determine the in vitro effects of the PE from EVOO on peripheral blood mononuclear cells (PBMC) from inactive patients with SLE and healthy donors...
February 15, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28197808/age-related-alterations-of-the-cd19-complex-and-memory-b-cells-in-children-with-down-syndrome
#19
Ayse Nazli Seckin, Hulya Ozdemir, Ayca Ceylan, Hasibe Artac
Children with Down syndrome (DS) have a high incidence of recurrent respiratory tract infections, leukaemia and autoimmune disorders, suggesting immune dysfunction. The present study evaluated the role of the CD19 complex and memory B cells in the pathogenesis of immunodeficiency in children with DS. The expression levels (median fluorescein intensity-MFI) of CD19, CD21 and CD81 molecules on the surface of B cells and memory B cell subsets were studied in 37 patients and 39 healthy controls. Twenty-nine of the DS group had congenital cardiac disease...
February 14, 2017: Clinical and Experimental Medicine
https://www.readbyqxmd.com/read/28197769/confounding-effects-of-microbiome-on-the-susceptibility-of-tnfsf15-to-crohn-s-disease-in-the-ryukyu-islands
#20
Shigeki Nakagome, Hiroshi Chinen, Atsushi Iraha, Akira Hokama, Yasuaki Takeyama, Shotaro Sakisaka, Toshiyuki Matsui, Judith R Kidd, Kenneth K Kidd, Heba S Said, Wataru Suda, Hidetoshi Morita, Masahira Hattori, Tsunehiko Hanihara, Ryosuke Kimura, Hajime Ishida, Jiro Fujita, Fukunori Kinjo, Shuhei Mano, Hiroki Oota
Crohn's disease (CD) involves chronic inflammation in the gastrointestinal tract due to dysregulation of the host immune response to the gut microbiome. Even though the host-microbiome interactions are likely contributors to the development of CD, a few studies have detected genetic variants that change bacterial compositions and increase CD risk. We focus on one of the well-replicated susceptible genes, tumor necrosis factor superfamily member 15 (TNFSF15), and apply statistical analyses for personal profiles of genotypes and salivary microbiota collected from CD cases and controls in the Ryukyu Islands, southernmost islands of the Japanese archipelago...
February 14, 2017: Human Genetics
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