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https://www.readbyqxmd.com/read/29054152/target-initiated-labeling-for-the-dual-amplified-detection-of-multiple-micrornas
#1
Yinan Wang, Choiwan Lau, Jianzhong Lu
Herein we exploited a novel target-initiated labeling strategy for the multiplex detection of microRNAs (miRNAs) by coupling duplex-specific nuclease (DSN) with terminal deoxynucleotidyl transferase (TdT). In the presence of target miRNA, the immobilized and 3'-blocked capture probes hybridized with target and thus the formed DNA-RNA hybrid was recognized by DSN. DSN mediated the digestion of 3'-phosphated capture probes (CPs) in the hybrids and synchronously target was released and recycled for another round of hybridization and cleavage...
November 1, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/29050777/multiplex-analysis-of-plasma-cytokines-chemokines-showing-different-immune-responses-in-active-tb-patients-latent-tb-infection-and-healthy-participants
#2
Xiangyang Yao, Yongliang Liu, Yang Liu, Wei Liu, Zhizhong Ye, Chao Zheng, Shengxiang Ge
Interferon gamma release assays (IGRAs) have been widely used to diagnose Mycobacterium tuberculosis (MTB) infection. However, IGRAs cannot discriminate between active TB patients and latent TB infection (LTBI), and the sensitivity of IGRAs for MTB infection is suboptimal. Here, we analyzed cytokines/chemokines in MTB antigen-stimulated and -unstimulated plasma samples to identify host biomarkers that are associated with active TB and MTB infection. Active TB patients, subjects with LTBI and healthy participants were recruited...
December 2017: Tuberculosis
https://www.readbyqxmd.com/read/29050187/-cytokine-analysis-of-aqueous-humor-in-aids-patients
#3
W J Kong, C G Guo, L Y Xie, W B Wei, H W Dong, C Chen, K F Du
Objective: To explore the Cytokine of aqueous humor in AIDS patients with different eye diseases. Methods: A case-control study including 38 patients who was diagnosed as acquired immunodeficiency syndrome(AIDS) at Infectious Center and Department of Ophthalmology in Beijing You'an Hospital, Capital Medical University. And 16 cases of 38 patients were cytomegalovirus retinitis (CMVR), 14 cases were HIV-related retinal disease, and 8 cases presented as normal. A series of tests were performed including vision acuity check, intraocular pressure, fundus photography, blood cell count of CD4+ T lymphocyte and the content of cytokines in aqueous humor by Luminex 200(TM) liquid chip analyzer...
October 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/29049348/chronic-administration-of-fluoxetine-and-pro-inflammatory-cytokine-change-in-a-rat-model-of-depression
#4
Yanxia Lu, Cyrus S Ho, Xin Liu, Anna N Chua, Wei Wang, Roger S McIntyre, Roger C Ho
This study evaluated the chronic effects of fluoxetine, a commonly prescribed SSRI antidepressant, on the peripheral and central levels of inflammatory cytokines including IL-1β, IL-6, TNF-α and IL-17 over a 4-interval in a rat model of chronic mild stress (CMS) which resembles the human experience of depression. Twenty-four Sprague-Dawley rats were randomly assigned to CMS+vehicle (n = 9), CMS+fluoxetine (n = 9) and the control (n = 6) groups. Sucrose preference and forced swim tests were performed to assess behavioral change...
2017: PloS One
https://www.readbyqxmd.com/read/29048509/plasma-but-not-cerebrospinal-fluid-interleukin-7-and-interleukin-5-levels-pre-antiretroviral-therapy-commencement-predict-cryptococcosis-associated-immune-reconstitution-inflammatory-syndrome
#5
Ngomu Akeem Akilimali, Christina C Chang, Daniel M Muema, Tarylee Reddy, Mahomed-Yunus S Moosa, Sharon R Lewin, Martyn A French, Thumbi Ndung'u
Background: Patients with human immunodeficiency virus/AIDS-associated cryptococcal meningitis (CM) frequently experience clinical deterioration, known as cryptococcosis-associated immune reconstitution inflammatory syndrome (C-IRIS), upon initiation of antiretroviral therapy (ART). The immunological mechanisms underlying C-IRIS are incompletely defined and no reliable predictive biomarkers exist. We investigated whether plasma or cerebrospinal fluid (CSF) levels of cytokines and chemokines predicted C-IRIS and are potential predictive biomarkers...
October 16, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29041967/microparticles-from-patients-with-systemic-lupus-erythematosus-induce-production-of-reactive-oxygen-species-and-degranulation-of-polymorphonuclear-leukocytes
#6
Line Kjær Winberg, Søren Jacobsen, Claus H Nielsen
BACKGROUND: The interaction of circulating microparticles (MPs) with immune cells in systemic lupus erythematosus (SLE) is sparsely investigated. We examined the ability of MPs from SLE patients to induce production of reactive oxygen species (ROS) and degranulation of polymorphonuclear leukocytes (PMNs). METHODS: Plasma MPs, leukocytes and sera isolated from 20 SLE patients and 10 healthy controls were mixed in different combinations, with or without lipopolysaccharide (LPS), and incubated for 30 min...
October 17, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/29037383/regulation-of-pyruvate-dehydrogenase-pdh-in-the-hibernating-ground-squirrel-ictidomys-tridecemlineatus
#7
Sanoji Wijenayake, Shannon N Tessier, Kenneth B Storey
Pyruvate dehydrogenase (PDH) is a vital regulatory enzyme that catalyzes the conversion of pyruvate into acetyl-CoA and connects anaerobic glycolysis to aerobic TCA cycle. Post-translational inhibition of PDH activity via three serine phosphorylation sites (pS232, pS293, and pS300) regulate the metabolic flux through the TCA cycle, decrease glucose utilization, and facilitate lipid metabolism during times of nutrient deprivation. As metabolic readjustment is necessary to survive hibernation, the purpose of this study was to explore the post-translational regulation of pyruvate dehydrogenase and the expression levels of four mitochondrial serine/threonine kinases (PDHKs), during torpor-arousal cycles in liver, heart, and skeletal muscle of 13-lined ground squirrels...
October 2017: Journal of Thermal Biology
https://www.readbyqxmd.com/read/29035762/high-genetic-variability-of-norovirus-leads-to-diagnostic-test-challenges
#8
Ran Zhuo, Joanne Cho, YuanYuan Qiu, Brendon D Parsons, Bonita E Lee, Linda Chui, Stephen B Freedman, Xiaoli Pang
BACKGROUND: It is important to understand the diagnostic accuracy of multiplex panels such as the Luminex xTAG(®) Gastrointestinal Pathogen Panel (GPP) as they are increasingly employed for routine diagnostics worldwide. Recent evaluations in our laboratory identified lower detection rates of norovirus genogroup II (NoV GII) using GPP compared to our laboratory-developed RT-qPCR, Gastroenteritis Virus Panel (GVP). OBJECTIVES: To characterize the cases of discordant NoV GII results between GPP and GVP and determine the sensitivity of the two assays for specific NoV GII genotypes...
October 9, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/29035328/pterodontic-acid-isolated-from-laggera-pterodonta-inhibits-viral-replication-and-inflammation-induced-by-influenza-a-virus
#9
Wenda Guan, Jing Li, Qiaolian Chen, Zhihong Jiang, Rongping Zhang, Xinhua Wang, Zifeng Yang, Xiping Pan
Laggera pterodonta (DC.) Benth. is a traditional Chinese medicine. The previous study revealed that the crude extracts of this herb could inhibit influenza virus infection, but its anti-influenza components and underlying mechanism of action remain unknown. Column chromatography was performed to isolate components from the plant. Activity against influenza virus of the compound was determined by CPE inhibition assay. Neuraminidase (NA) inhibition was measured by chemiluminescence assay. The anti-virus and anti-inflammation effects were determined using dual-luciferase reporter assay, immunofluorescence, quantitative real-time PCR and luminex assay...
October 16, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29033092/comparison-of-il-1%C3%AE-tnf-%C3%AE-hbd-2-and-hbd-3-expression-in-the-dental-pulp-of-smokers-versus-nonsmokers
#10
Caroline Ghattas Ayoub, Anita Aminoshariae, Mohammed Bakkar, Santosh Ghosh, Tracey Bonfield, Catherine Demko, Thomas A Montagnese, Andre K Mickel
INTRODUCTION: To date, the endodontic literature lacks research on the effect of smoking on cytokine and defensin expression in the dental pulp. Therefore, the aim of this study was to investigate the expression of interleukin (IL)-1β, tumor necrosis factor (TNF)-α, human beta defensin (hBD)-2 and hBD-3 in the dental pulp of smokers and compare them with nonsmokers. We hypothesized that cytokine and defensin expression would be reduced in smokers as compared with nonsmokers. METHODS: Thirty-two smokers and 37 nonsmokers with endodontic pulpal diagnoses of normal, symptomatic irreversible pulpitis and asymptomatic irreversible pulpitis were included in this cross-sectional study...
October 12, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/29032547/genome-wide-mutagenesis-in-borrelia-burgdorferi
#11
Tao Lin, Lihui Gao
Signature-tagged mutagenesis (STM) is a functional genomics approach to identify bacterial virulence determinants and virulence factors by simultaneously screening multiple mutants in a single host animal, and has been utilized extensively for the study of bacterial pathogenesis, host-pathogen interactions, and spirochete and tick biology. The signature-tagged transposon mutagenesis has been developed to investigate virulence determinants and pathogenesis of Borrelia burgdorferi. Mutants in genes important in virulence are identified by negative selection in which the mutants fail to colonize or disseminate in the animal host and tick vector...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29032048/cytokine-profile-changes-in-gingival-crevicular-fluid-after-placement-different-brackets-types
#12
Ana Zilda Nazar Bergamo, Paulo Nelson-Filho, Cássio do Nascimento, Renato Corrêa Viana Casarin, Márcio Zaffalon Casati, Marcela Cristina Damião Andrucioli, Érika Calvano Kuchler, Daniele Lucca Longo, Léa Assed Bezerra da Silva, Mírian Aiko Nakane Matsumoto
OBJECTIVE: The aim of this study was to examine the relationship between bracket design and ratio of five proinflammatory cytokine, in gingival crevicular fluid (GCF), and bacterial adhesion without tooth movement influence. DESIGN: The sample was comprised of 20 participants, aged 11 to 15 years old (mean age: 13.3 years±1.03). A conventional Gemini™ metallic bracket and two self-ligating brackets, In-Ovation(®)R and SmartClip™, were bonded to the maxillary incisors and canines...
September 25, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/29028630/ezh2-regulates-dental-pulp-inflammation-by-direct-effect-on-inflammatory-factors
#13
Tianqian Hui, Peng A, Yuan Zhao, Jing Yang, Ling Ye, Chenglin Wang
OBJECTIVE: Pulpitis is a multi-factorial disease that could be caused by complex interactions between genetics, epigenetics and environmental factors. We aimed to evaluate the role of Enhancer of Zeste Homolog 2 (EZH2) in the inflammatory response of human dental pulp cells (HDPCs) and dental pulp tissues. METHODS: The expressions of inflammatory cytokines in HDPCs treated by EZH2 complex or EZH2 siRNA with or without rhTNF-α were examined by quantitative real-time polymerase chain reaction (q-PCR)...
October 7, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/29018428/defining-the-genetic-features-of-o-antigen-biosynthesis-gene-cluster-and-performance-of-an-o-antigen-serotyping-scheme-for-escherichia-albertii
#14
Hong Wang, Han Zheng, Qun Li, Yanmei Xu, Jianping Wang, Pengcheng Du, Xinqiong Li, Xiang Liu, Ling Zhang, Nianli Zou, Guodong Yan, Zhengdong Zhang, Huaiqi Jing, Jianguo Xu, Yanwen Xiong
Escherichia albertii is a newly described and emerging diarrheagenic pathogen responsible for outbreaks of gastroenteritis. Serotyping plays an important role in diagnosis and epidemiological studies for pathogens of public health importance. The diversity of O-antigen biosynthesis gene clusters (O-AGCs) provides the primary basis for serotyping. However, little is known about the distribution and diversity of O-AGCs of E. albertii strains. Here, we presented a complete sequence set for the O-AGCs from 52 E...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29016954/association-of-interleukin-6-and-other-cytokines-with-self-reported-pain-in-prostate-cancer-patients-receiving-chemotherapy
#15
Sarah Al-Mazidi, Karim Farhat, TaoufiK Nedjadi, Adeel Chaudhary, Osman Zin Al-Abdin, Danny Rabah, Mohammad Al-Zoghaibi, Laiche Djouhri
Background: Pain is a common and dose-limiting side effect of many potentially curative cancer chemotherapeutic agents. This chemotherapy-induced pain (CIP) affects the quality of life of cancer patients and survivors and hampers the optimal clinical management of chemotherapy in cancer patients. The underlying mechanisms remain largely unknown, but changes in levels of cytokines/chemokines may contribute to the pathophysiology of CIP. Objective: This retrospective study was aimed at examining whether plasma levels of various cytokines change in prostate cancer patients after chemotherapy treatment and whether such changes (if any) are associated with their pain intensity...
June 22, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28993188/the-effect-of-killer-cell-immunoglobulin-like-receptor-genotype-on-outcome-of-hematopoietic-stem-cell-transplantation-from-matched-sibling
#16
Sally M Elfishawi, Ghada I Mossallam, Raafat Abd El-Fattah, Alaa El-Haddad, Azza M Kamel
The alloreactivity of natural killer (NK) cell after allogeneic hematopoietic stem cell transplantation (AHSCT) is regulated by the interaction between donor killer immunoglobulin-like receptors (KIRs) and recipient human leukocyte antigen (HLA)- class I molecules. The aim was to identify KIR genes, haplotypes and their HLA-class I ligands and to investigate their association with transplantion outcome. The study included 65 patient/donor pairs who received AHSCT from HLA-matched identical siblings. KIR genotyping was done for donors using reverse sequence specific oligonucleotide probes (rSSO) coupled with luminex technology, while HLA-C genotyping was performed in patients using rSSO strip assay...
October 6, 2017: Human Immunology
https://www.readbyqxmd.com/read/28991674/body-composition-and-adipokines-plasma-levels-in-patients-with-myasthenia-gravis-treated-with-high-cumulative-glucocorticoid-dose
#17
Nayara Felicidade Tomaz Braz, Natalia Pessoa Rocha, Érica Leandro Marciano Vieira, Rodrigo Santiago Gomez, Adriana Maria Kakehasi, Antonio Lucio Teixeira
This study aimed to evaluate changes in body composition, i.e. overweight, obesity, fat accumulation and low lean body mass and plasma levels of adipokines in patients with MG. The study enrolled 80 patients with MG, and 62 controls. Body fat mass and body lean mass was analyzed by dual-energy X-ray absorptiometry technique (DXA). Plasma levels of leptin were analyzed by Luminex® and adiponectin and resistin were analyzed by ELISA. The mean age of patients with MG was 41.9years, with 13.5years of length of illness, and mean cumulative dose of glucocorticoids 38,123mg...
October 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28984603/relation-of-odor-identification-with-alzheimer-s-disease-markers-in-cerebrospinal-fluid-and-cognition
#18
Babette L R Reijs, Inez H G B Ramakers, Lyzel Elias-Sonnenschein, Charlotte E Teunissen, Marleen Koel-Simmelink, Magda Tsolaki, Lars-Olof Wahlund, Gunhild Waldemar, Lucrezia Hausner, Peter Johannsen, Hugo Vanderstichele, Frans Verhey, D P Devanand, Pieter Jelle Visser
BACKGROUND: Impaired olfactory function is an early characteristic of Alzheimer's disease (AD), but it remains unclear if odor identification also relates to early markers of AD in cerebrospinal fluid (CSF). OBJECTIVE: To investigate the association between odor identification and amyloid-β 1-42 (Aβ42) and total tau (t-tau) concentrations in CSF. In addition, to examine the relation between odor identification and cognitive function at baseline and at follow-up, and whether these associations are moderated by CSF Aβ42 and t-tau and apolipoprotein E (APOE) genotype...
2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28984585/memory-correlates-of-alzheimer-s-disease-cerebrospinal-fluid-markers-a-longitudinal-cohort-study
#19
Babette L R Reijs, Inez H G B Ramakers, Sebastian Köhler, Charlotte E Teunissen, Marleen Koel-Simmelink, Pradeep J Nathan, Magda Tsolaki, Lars-Olof Wahlund, Gunhild Waldemar, Lucrezia Hausner, Rik Vandenberghe, Peter Johannsen, Andrew Blackwell, Hugo Vanderstichele, Frans Verhey, Pieter Jelle Visser
BACKGROUND: Performance on episodic, semantic, and working memory tests is impaired in Alzheimer's disease (AD)-type dementia, but it is unclear which type of memory test is most strongly associated with early AD biomarkers in cerebrospinal fluid (CSF), and most useful for monitoring disease progression. OBJECTIVE: To examine the association between amyloid-β 1-42 (Aβ42) and tau in CSF with performance on different memory domains at baseline, and how these CSF markers are related with memory decline...
2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28983744/human-papillomavirus-genotype-distribution-among-hpv-positive-women-in-sichuan-province-southwest-china
#20
Guo Tao, Gao Yaling, Gao Zhan, Liao Pu, He Miao
In this hospital-based descriptive study, the genotype distribution of human papillomavirus (HPV) among HPV-infected women were investigated in 4,305 gynecological patients in Sichuan province. Females attending gynecology clinics between March 2014 and March 2015 were subjected to HPV screening after giving informed consent. Cervical scrapings were examined by cytopathology and colposcopy-directed biopsies. HPV genotyping was performed on a Luminex 200 system. Seventeen high-risk (HR) genotypes (HPV-16, -18, -31, -33, -35, -39, -45, -51, -52, -53, -56, -58, -59, -66, -68, -73, and -82) and seven low-risk (LR) genotypes (HPV-6, -11, -42, -43, -61, -81, and -83) were detected...
October 5, 2017: Archives of Virology
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