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https://www.readbyqxmd.com/read/29783264/the-use-of-immunohistochemical-methods-in-the-study-of-morphofunctional-features-of-the-human-paranasal-sinuses-literature-review
#1
Mykhailo M Koptev, Nataliia I Vynnyk, Oksana V Kokovska, Olena М Pronina, Serhii М Bilash
OBJECTIVE: Introduction:Chronic inflammatory diseases of the mucous membrane of the nose, paranasal sinuses, and pharynx are the most widespread pathology of the upper airways. The thorough study of the features of the organization of local immune protection of the mucous membrane of the paranasal sinuses is crucial for the deep understanding of the causes of the onset and development of this and other pathologies of the paranasal sinuses, the choice of methods of diagnostics and treatment...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29783245/-epidemiological-features-of-parasitary-invasis-in-women-of-reproductive-age-with-disorders-of-reproductive-health
#2
Valentyna О Sklyarova
OBJECTIVE: The aim: The purpose of this study is to analyze the frequency and structure of parasitic lesion in women with reproductive health disorders. PATIENTS AND METHODS: Materials and methods: The immune-enzyme method tested immunoglobulins IgG to ascaris, lamblia, toxocara. Determination of the presence of pinworm eggs (sticky tape and perianal scrape method) and ascarid (methods of K.Cato, F.Fueleborna and E.S.Schulman). RESULTS: Results: In women with complicated obstetric anamnesis, parasitic invasions occurred in (52...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29783162/a-peripheral-immune-response-to-remembering-trauma-contributes-to-the-maintenance-of-fear-memory-in-mice
#3
Matthew B Young, Leonard L Howell, Lauren Hopkins, Cassandra Moshfegh, Zhe Yu, Lauren Clubb, Jessica Seidenberg, Jeanie Park, Adam P Swiercz, Paul J Marvar
Alterations in peripheral immune markers are observed in individuals with post-traumatic stress disorder (PTSD). PTSD is characterized in part by impaired extinction of fear memory for a traumatic experience. We hypothesized that fear memory extinction is regulated by immune signaling stimulated when fear memory is retrieved. The relationship between fear memory and the peripheral immune response was tested using auditory Pavlovian fear conditioning in mice. Memory for the association was quantified by the amount of conditioned freezing exhibited in response to the conditioned stimulus (CS), extinction and time-dependent changes in circulating inflammatory cytokines...
May 17, 2018: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29783157/vaccines-and-the-association-with-relapses-in-patients-with-neuromyelitis-optica-spectrum-disorder
#4
Maureen A Mealy, Lawrence J Cook, Florence Pache, Diego L Velez, Nadja Borisow, Daniel Becker, Jorge A Jimenez Arango, Friedemann Paul, Michael Levy
BACKGROUND: It is unknown if vaccines cause non-specific immune activation in patients with neuromyelitis optica spectrum disorder and no consensus on the use of vaccines exists for this population. We investigated the temporal association of vaccinations with relapses in patients with neuromyelitis optica spectrum disorder. METHODS: This is a multi-center retrospective analysis of patients with neuromyelitis optica spectrum disorder for whom immunization history and clinical records from disease onset were available...
May 7, 2018: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29783144/analogous-modified-dna-probe-and-immune-competition-method-based-electrochemical-biosensor-for-rna-modification
#5
Tao Dai, Qinli Pu, Yongcan Guo, Chen Zuo, Shulian Bai, Yujun Yang, Dan Yin, Yi Li, Shangchun Sheng, Yiyi Tao, Jie Fang, Wen Yu, Guoming Xie
N6-methyladenosine (m6A), one of the most abundant RNA methylation which is ubiquitous in eukaryotic RNA, plays vital roles in many biological progresses. Therefore, the rapid and accurate quantitative detection of m6A is particularly important for its functional research. Herein, a label-free and highly selective electrochemical immunosensor was developed for the detection of m6A. The method is established on that the anti-m6A-Ab can recognize both m6A-RNA and m6A-DNA. An analogous modified DNA probe (L1) serves as a signal molecule, by competing with m6A-RNA for binding to Abs to broaden the linear range...
May 18, 2018: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29783120/canine-mesenchymal-stem-cells-treated-with-tnf-%C3%AE-and-ifn-%C3%AE-enhance-anti-inflammatory-effects-through-the-cox-2-pge-2-pathway
#6
Hye-Mi Yang, Woo-Jin Song, Qiang Li, Su-Yeon Kim, Hyeon-Jin Kim, Min-Ok Ryu, Jin-Ok Ahn, Hwa-Young Youn
Mesenchymal stem cells (MSCs) have been used in studies on treatment of various diseases, and their application to immune-mediated diseases has garnered interest. Various methods for enhancing the immunomodulation effect of human MSCs have been used; however, similar approaches for canine MSCs are relatively unexplored. Accordingly, we evaluated immunomodulatory effects and mechanisms in canine MSCs treated with TNF-α and IFN-γ. Lipopolysaccharide (LPS)-stimulated RAW 264.7 cells were incubated with the conditioned media (CM) from canine MSCs for 48 h...
May 14, 2018: Research in Veterinary Science
https://www.readbyqxmd.com/read/29783087/association-of-t-and-non-t-cell-cytokines-with-anhedonia-role-of-gender-differences
#7
Manish K Jha, Andrew H Miller, Abu Minhajuddin, Madhukar H Trivedi
OBJECTIVE: Among individual depressive symptoms, anhedonia has been reliably associated with activation of the innate immune response. However, it is unclear whether this association extends to T cell cytokines and if gender differentially affects this association. METHOD: Concentrations of T (IL-17, T-helper (Th) 1- and Th2-) and non-T cell cytokines were measured in plasma using the Bioplex Pro™ human cytokine multiplex kit in Combining Medications to Enhance Depression Outcomes (CO-MED) trial participants who provided plasma at baseline (n = 166)...
May 12, 2018: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29783020/immune-modulation-of-a-novel-lipid-soluble-extract-of-pinellia-pedatisecta-schott-in-the-tumor-microenvironment-of-an-hpv-tumor-burdened-mouse-model
#8
Haixia Huang, Mingxing Zhang, Meng Zhang, Jing Peng, Guiling Li, Congjian Xu, Suiqi Gui
ETHNOPHARMACOLOGICAL RELEVANCE: Pinellia pedatisecta Schott extract (PE), a traditional Chinese medicine, has been used to reduce swelling, dry dampness and suppress cervical tumors. AIMS: To evaluate the roles of PE in the regulation of anti-tumor effects and the cellular immune response in the tumor microenvironment. METHODS: The immune microenvironment of HPV+ TC-1 tumors was examined by immunohistochemistry, real-time PCR and flow cytometry...
May 18, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29782983/an-in-vivo-biocompatibility-study-of-surgical-meshes-made-from-bacterial-cellulose-modified-with-chitosan
#9
Joanna Piasecka-Zelga, Piotr Zelga, Joanna Szulc, Justyna Wietecha, Danuta Ciechańska
Bacterial cellulose modified with chitosan (MBC) is an innovative biomaterial used in regenerative medicine which may potentially improve treatment outcomes mesh for hernia repair surgery by facilitating better absorption in native tissue with less risk of mesh-related infections. The aim of the present study was to evaluate the biocompatibility of mesh based on MBC, and determine whether immunological reactions occur due to hypersensitivity to the implants. Forty five Imp:WIST rats were randomly assigned to be implanted with one of three mesh types: simple polypropylene mesh (n = 15), mesh modified by bacterial cellulose only (n = 15) and MBC mesh (n = 15) and evaluated after one and three months following intramuscular implantation...
May 18, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29782967/deficient-mitochondrial-biogenesis-in-il-2-activated-nk-cells-correlates-with-impaired-pgc1-%C3%AE-upregulation-in-elderly-humans
#10
Dante Miranda, Claudia Jara, Sophia Mejias, Viviana Ahumada, Marcelo Cortez-San Martin, Jorge Ibañez, Sandra Hirsch, Margarita Montoya
Immunosenescence has been described as age-associated changes in the immune function which are thought to be responsible for the increased morbidity with age. Human Natural Killer (NK) cells are a specialized heterogeneous subpopulation of lymphocytes involved in immune defense against tumor and microbial diseases. Interestingly, aging-related NK cell dysfunction is associated with features of aging such as tumor incidence, reduced vaccination efficacy, and short survival due to infection. It is known that NK cell effector functions are critically dependent on cytokines and metabolic activity...
May 18, 2018: Experimental Gerontology
https://www.readbyqxmd.com/read/29782928/a-mathematical-approach-to-effects-of-ctls-on-cancer-virotherapy-in-the-second-injection-of-virus
#11
A Ashyani, O RabieiMotlagh, H M Mohammadinezhad
This paper proposes a planar delay differential equation for cancer virotherapy. The model simulates the situation in which an oncolytic virus is injected for the second time, and the immune system suppresses the viral infection with a time delay. Our purpose is to provide theoretical conditions so that the therapy can be continued successfully. With the help of the characteristic equation, we examine the singularities and their local stability. Hopf bifurcation is also investigated around the endemic singularity...
May 18, 2018: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/29782924/emerging-biomarkers-for-immune-checkpoint-inhibition-in-lung-cancer
#12
REVIEW
George Cyriac, Leena Gandhi
Immune checkpoint inhibition with anti-PD-1 therapy has been notably successful in non-small cell lung cancer (NSCLC) and changed standard practice in multiple settings. However, despite some durable benefits seen, the majority of unselected patients with NSCLC fail to respond to checkpoint inhibitors. Patient selection is crucial and will become even more important in the development of combination therapies with immune checkpoint inhibitors. PD-L1 expression by immunohistochemistry (IHC) has emerged as the most commonly used clinical biomarker of response and overall tumor mutational burden (TMB) is being explored as a clinical biomarker...
May 18, 2018: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/29782791/a-method-for-preparation-of-an-internal-layer-of-artificial-vascular-graft-co-modified-with-salvianolic-acid-b-and-heparin
#13
Haizhu Kuang, Yao Wang, Junfeng Hu, Chunsheng Wang, Shuyang Lu, Xiumei Mo
Studies have shown that traditional Chinese medicine Salvianolic acid B (SAB) can promote the proliferation and migration of endothelial cells. Heparin has a good anticoagulant effect. The inner layer of artificial vascular graft is fabricated by coaxial electrospinning method, and loaded with heparin and SAB. The release of heparin and SAB was sustained for almost 30 days, and SAB without initial burst release. Furthermore, the combined effect of SAB and heparin contributed to promoted Human Umbilical Vein Endothelial Cells (HUVECs) growth and improved blood compatibility of graft...
May 21, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29782555/langerin-dcs-regulate-innate-il-17-production-in-the-oral-mucosa-during-candida-albicans-mediated-infection
#14
Florian Sparber, Tamas Dolowschiak, Sarah Mertens, Laura Lauener, Björn E Clausen, Nicole Joller, Patrizia Stoitzner, Roxane Tussiwand, Salomé LeibundGut-Landmann
The opportunistic fungal pathogen Candida albicans frequently causes diseases such as oropharyngeal candidiasis (OPC) in immunocompromised individuals. Although it is well appreciated that the cytokine IL-17 is crucial for protective immunity against OPC, the cellular source and the regulation of this cytokine during infection are still a matter of debate. Here, we directly visualized IL-17 production in the infected tongue of experimentally infected mice, thereby demonstrating that this key cytokine is expressed by three complementary subsets of CD90+ leukocytes: RAG-dependent αβ and γδ T cells, as well as RAG-independent ILCs...
May 21, 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29782541/an-unappreciated-role-for-neutrophil-dc-hybrids-in-immunity-to-invasive-fungal-infections
#15
J Scott Fites, Michael Gui, John F Kernien, Paige Negoro, Zeina Dagher, David B Sykes, Jeniel E Nett, Michael K Mansour, Bruce S Klein
Neutrophils are classically defined as terminally differentiated, short-lived cells; however, neutrophils can be long-lived with phenotypic plasticity. During inflammation, a subset of neutrophils transdifferentiate into a population called neutrophil-DC hybrids (PMN-DCs) having properties of both neutrophils and dendritic cells. While these cells ubiquitously appear during inflammation, the role of PMN-DCs in disease remains poorly understood. We observed the differentiation of PMN-DCs in pre-clinical murine models of fungal infection: blastomycosis, aspergillosis and candidiasis...
May 21, 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29782535/mycobacterium-tuberculosis-specific-cd4-and-cd8-t-cells-differ-in-their-capacity-to-recognize-infected-macrophages
#16
Jason D Yang, Daniel Mott, Rujapak Sutiwisesak, Yu-Jung Lu, Fiona Raso, Britni Stowell, Greg Hunter Babunovic, Jinhee Lee, Steve M Carpenter, Sing Sing Way, Sarah M Fortune, Samuel M Behar
Containment of Mycobacterium tuberculosis (Mtb) infection requires T cell recognition of infected macrophages. Mtb has evolved to tolerate, evade, and subvert host immunity. Despite a vigorous and sustained CD8+ T cell response during Mtb infection, CD8+ T cells make limited contribution to protection. Here, we ask whether the ability of Mtb-specific T cells to restrict Mtb growth is related to their capacity to recognize Mtb-infected macrophages. We derived CD8+ T cell lines that recognized the Mtb immunodominant epitope TB10...
May 21, 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29782532/hepatitis-c-virus-ns4b-induces-the-degradation-of-trif-to-inhibit-tlr3-mediated-interferon-signaling-pathway
#17
Yisha Liang, Xuezhi Cao, Qiang Ding, Yanan Zhao, Zhenliang He, Jin Zhong
Toll-like receptor 3 (TLR3) senses dsRNA intermediates produced during RNA virus replication to activate innate immune signaling pathways through adaptor protein TRIF. Many viruses have evolved strategies to block TLR3-mediated interferon signaling via targeting TRIF. Here we studied how hepatitis C virus (HCV) antagonizes the TLR3-mediated interferon signaling. We found that HCV-encoded NS4B protein inhibited TLR3-mediated interferon signaling by down-regulating TRIF protein level. Mechanism studies indicated that the downregulation of TRIF by NS4B was dependent on caspase8...
May 21, 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29782520/polymorphic-sites-preferentially-avoid-co-evolving-residues-in-mhc-class-i-proteins
#18
Linda Dib, Nicolas Salamin, David Gfeller
Major histocompatibility complex class I (MHC-I) molecules are critical to adaptive immune defence mechanisms in vertebrate species and are encoded by highly polymorphic genes. Polymorphic sites are located close to the ligand-binding groove and entail MHC-I alleles with distinct binding specificities. Some efforts have been made to investigate the relationship between polymorphism and protein stability. However, less is known about the relationship between polymorphism and MHC-I co-evolutionary constraints...
May 21, 2018: PLoS Computational Biology
https://www.readbyqxmd.com/read/29782508/parent-and-caregiver-perceptions-about-the-safety-and-effectiveness-of-foreign-and-domestic-vaccines-in-shanghai-china
#19
Zhuoying Huang, Xiaodong Sun, Abram L Wagner, Jia Ren, Matthew L Boulton, Lisa A Prosser, Brian J Zikmund-Fisher
BACKGROUND: Chinese parents have access to domestic and foreign vaccines for their children. Their vaccine preferences are unclear, especially given recent pharmaceutical quality scandals and widely held beliefs deriving from Traditional Chinese Medicine (TCM). This study characterized parental beliefs about the safety and effectiveness of Chinese and foreign vaccines. METHODS: In May 2014, caregivers of young children at public immunization clinics in Shanghai, China, responded to a survey on vaccine perceptions...
2018: PloS One
https://www.readbyqxmd.com/read/29782463/gut-microbiota-probiotics-and-sport-from-clinical-evidence-to-agonistic-performance
#20
Marco Pane, Angela Amoruso, Francesca Deidda, Teresa Graziano, Serena Allesina, Luca Mogna
Human beings harbor clusters of bacteria in different parts of the body, such as the surface or the deep layers of the skin, the mouth, the lungs, the intestine, the vagina, and all the surfaces exposed to the outer world. The majority of microbes resides in the gut, have a weighty influence on human physiology and nutrition and are vital for human life. There is growing evidence showing that the gut microbiota plays important roles in the maturation of the immune system and the protection against some infectious agents...
May 18, 2018: Journal of Clinical Gastroenterology
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