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Tuberculosis biomarker

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https://www.readbyqxmd.com/read/28337993/evaluation-of-5-novel-protein-biomarkers-for-the-rapid-diagnosis-of-pulmonary-and-extra-pulmonary-tuberculosis-preliminary-results
#1
Amit Singh, Anil Kumar Gupta, Krishnamoorthy Gopinath, Pawan Sharma, Sarman Singh
Improved methods are required for the early and accurate diagnosis of tuberculosis, especially in the patients with smear-negative disease. Several biomarkers have been tried but most have shown poor sensitivity or specificity. In present study we aimed to evaluate the diagnostic utility of five novel antigens identified earlier by us. This is an initial study conducted on 250 subjects. The five recombinant antigens, named as rSS1 (Rv2145c), rSS2 (Rv0164), rSS3 (Rv1437), rSS4 (Rv1827) and rSS5 (Rv2970c), were expressed in pQE-30 expression vector, purified and their sero-diagnostic efficacy was evaluated in an unblinded manner using dot-blot and ELISA methods...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28323150/systematic-expression-profiling-analysis-mines-dys-regulated-modules-in-active-tuberculosis-based-on-re-weighted-protein-protein-interaction-network-and-attract-algorithm
#2
Ying Sun, Yan Weng, Ying Zhang, Xiang Yan, Lei Guo, Jia Wang, Xin Song, Ying Yuan, Fu-Ye Chang, Chun-Ling Wang
About 90% of tuberculosis (TB) patients latently infected with Mycobacterium tuberculosis (Mtb) show no symptoms, yet have a 10% chance in lifetime to progress active TB. Nevertheless, current diagnosis approaches need improvement in efficiency and sensitivity. The objective of this work was to detect potential signatures for active TB to further improve the understanding of the biological roles of functional modules involved in this disease. First, targeted networks of active TB and control groups were established via re-weighting protein-protein interaction (PPI) networks using Pearson's correlation coefficient (PCC)...
March 18, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28317400/nanodiagnostics-for-tuberculosis-detection
#3
Hesham El-Samadony, Asma Althani, Mohamed Awad Tageldin, Hassan M E Azzazy
Introduction Tuberculosis (TB) is a leading killer worldwide. End TB strategy aims at ending the TB epidemic by 2030. Early, accurate, and affordable diagnosis represents a cornerstone to achieve this goal. Innovative strategies for TB diagnostics have been introduced, however the ideal assay is yet unavailable and conventional methods remain necessary for diagnosis. Unique properties of nanoparticles (NPs) have allowed their utilization in TB detection via targeting disease biomarkers. Area Covered Until now, around thirty-five TB NP-based assays have been partially or fully characterized...
March 20, 2017: Expert Review of Molecular Diagnostics
https://www.readbyqxmd.com/read/28290241/the-metabolomic-strategy-in-tuberculosis-therapy
#4
Nitendra Kumar, Ashwinee Kumar Shreshtha, Sanjukta Patra
Tuberculosis causes around 1.4 million deaths every year remaining to be a major cause of morbidity and mortality. Mycobacterium tuberculosis is adept at surviving the assault of our immune system, which has perplexed many researchers. Not only are they difficult to treat, but also difficult to detect accurately. The current reservoir of drugs and method to diagnose them is depleting faster than we are able to replace them with newer one. The advances made in the field of metabolomic have opened up a window of opportunities such as identification of new drug and druggable site, prediction of drug toxicity and detection of new biomarkers to accurately diagnose the disease...
March 9, 2017: Combinatorial Chemistry & High Throughput Screening
https://www.readbyqxmd.com/read/28285168/design-and-use-of-mouse-control-dna-for-dna-biomarker-extraction-and-pcr-detection-from-urine-application-for-transrenal-mycobacterium-tuberculosis-dna-detection
#5
Hali Bordelon, Keersten M Ricks, Megan E Pask, Patricia K Russ, Francesca Solinas, Mark L Baglia, Philip A Short, Andrew Nel, Jonathan Blackburn, Keertan Dheda, Carlos Zamudio, Tatiana Cáceres, David W Wright, Frederick R Haselton, April C Pettit
Urine samples are increasingly used for diagnosing infections including Escherichia coli, Ebola virus, and Zika virus. However, extraction and concentration of nucleic acid biomarkers from urine is necessary for many molecular detection strategies such as polymerase chain reaction (PCR). Since urine samples typically have large volumes with dilute biomarker concentrations making them prone to false negatives, another impediment for urine-based diagnostics is the establishment of appropriate controls particularly to rule out false negatives...
March 9, 2017: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/28278182/serum-amyloid-a-protein-z-and-c4b-binding-protein-%C3%AE-chain-as-new-potential-biomarkers-for-pulmonary-tuberculosis
#6
Ting-Ting Jiang, Li-Ying Shi, Li-Liang Wei, Xiang Li, Su Yang, Chong Wang, Chang-Ming Liu, Zhong-Liang Chen, Hui-Hui Tu, Zhong-Jie Li, Ji-Cheng Li
The aim of this study was to discover novel biomarkers for pulmonary tuberculosis (TB). Differentially expressed proteins in the serum of patients with TB were screened and identified by iTRAQ-two dimensional liquid chromatography tandem mass spectrometry analysis. A total of 79 abnormal proteins were discovered in patients with TB compared with healthy controls. Of these, significant differences were observed in 47 abnormally expressed proteins between patients with TB or pneumonia and chronic obstructive pulmonary disease (COPD)...
2017: PloS One
https://www.readbyqxmd.com/read/28275455/country-of-residence-is-associated-with-distinct-inflammatory-biomarker-signatures-in-hiv-infected-patients
#7
EDITORIAL
Maura Manion, Bruno B Andrade, Rebecca DerSimonian, Wenjuan Gu, Adam Rupert, Laura W Musselwhite, Juan G Sierra-Madero, Pablo F Belaunzaran-Zamudio, Ian Sanne, Michael M Lederman, Irini Sereti
BACKGROUND: Inflammation and coagulation biomarkers are independent predictors of morbidity and mortality in HIV-infected patients. The impact of country of residence on these biomarkers is unknown and was investigated in persons at similar stages of HIV infection. METHODS: Cryopreserved plasma specimens were analysed from 267 ART-naive patients with CD4 cell counts <100 cells/μl from Mexico (n=124) and South Africa (n=143). Biomarkers were compared and dimension reduction analyses were performed to highlight biosignatures according to nationality, gender and tuberculosis co-infection...
January 1, 2017: Journal of Virus Eradication
https://www.readbyqxmd.com/read/28261295/pretreatment-neutrophil-to-lymphocyte-ratio-in-peripheral-blood-was-associated-with-pulmonary-tuberculosis-retreatment
#8
Yongmei Yin, Shougang Kuai, Jun Liu, YingYing Zhang, Zhongbao Shan, Lan Gu, Qiusheng Huang, Hao Pei, Jun Wang
INTRODUCTION: The neutrophil-to-lymphocyte ratio (NLR) is a readily available biomarker associated with recurrence and survival in various diseases. The objective of this study was to investigate the relationship between NLR and pulmonary tuberculosis (PTB) retreatment. MATERIAL AND METHODS: This was a case-control study that included 306 newly diagnosed cases of PTB in the clinical database of the Infectious Hospital of Wuxi from December 2009 to December 2011...
March 1, 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28261201/circulating-micrornas-as-potential-biomarkers-of-infectious-disease
#9
REVIEW
Carolina N Correia, Nicolas C Nalpas, Kirsten E McLoughlin, John A Browne, Stephen V Gordon, David E MacHugh, Ronan G Shaughnessy
microRNAs (miRNAs) are a class of small non-coding endogenous RNA molecules that regulate a wide range of biological processes by post-transcriptionally regulating gene expression. Thousands of these molecules have been discovered to date, and multiple miRNAs have been shown to coordinately fine-tune cellular processes key to organismal development, homeostasis, neurobiology, immunobiology, and control of infection. The fundamental regulatory role of miRNAs in a variety of biological processes suggests that differential expression of these transcripts may be exploited as a novel source of molecular biomarkers for many different disease pathologies or abnormalities...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28255560/humoral-responses-to-rv1733c-rv0081-rv1735c-and-rv1737c-dosr-regulon-encoded-proteins-of-mycobacterium-tuberculosis-in-individuals-with-latent-tuberculosis-infection
#10
Simon G Kimuda, Angela Nalwoga, Jonathan Levin, Kees L M C Franken, Tom H M Ottenhoff, Alison M Elliott, Stephen Cose, Irene Andia-Biraro
Latent tuberculosis infection (LTBI) is evidence of immunological control of tuberculosis. Dormancy survival regulator (DosR) regulon-encoded proteins may have a role in the maintenance of LTBI. T cell responses to Rv1733c, Rv0081, Rv1735c, and Rv1737c DosR regulon-encoded proteins were found to be most frequent among household contacts of TB cases from Uganda compared to other DosR proteins, but antibody responses were not described. We characterized antibody responses to these proteins in individuals from Uganda...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28248238/-omics-informed-drug-and-biomarker-discovery-opportunities-challenges-and-future-perspectives
#11
REVIEW
Holly Matthews, James Hanison, Niroshini Nirmalan
The pharmaceutical industry faces unsustainable program failure despite significant increases in investment. Dwindling discovery pipelines, rapidly expanding R&D budgets and increasing regulatory control, predict significant gaps in the future drug markets. The cumulative duration of discovery from concept to commercialisation is unacceptably lengthy, and adds to the deepening crisis. Existing animal models predicting clinical translations are simplistic, highly reductionist and, therefore, not fit for purpose...
September 12, 2016: Proteomes
https://www.readbyqxmd.com/read/28246455/molecular-markers-for-resistance-against-infectious-diseases-of-economic-importance
#12
REVIEW
B M Prajapati, J P Gupta, D P Pandey, G A Parmar, J D Chaudhari
Huge livestock population of India is under threat by a large number of endemic infectious (bacterial, viral, and parasitic) diseases. These diseases are associated with high rates of morbidity and mortality, particularly in exotic and crossbred cattle. Beside morbidity and mortality, economic losses by these diseases occur through reduced fertility, production losses, etc. Some of the major infectious diseases which have great economic impact on Indian dairy industries are tuberculosis (TB), Johne's disease (JD), mastitis, tick and tick-borne diseases (TTBDs), foot and mouth disease, etc...
January 2017: Veterinary World
https://www.readbyqxmd.com/read/28241036/analysis-of-mycobacterium-ulcerans-specific-t-cell-cytokines-for-diagnosis-of-buruli-ulcer-disease-and-as-potential-indicator-for-disease-progression
#13
Norman Nausch, Daniel Antwi-Berko, Yusif Mubarik, Kabiru Mohammed Abass, Wellington Owusu, Ellis Owusu-Dabo, Linda Batsa Debrah, Alexander Yaw Debrah, Marc Jacobsen, Richard O Phillips
BACKGROUND: Buruli ulcer disease (BUD), caused by Mycobacterium (M.) ulcerans, is the third most common mycobacterial disease after tuberculosis and leprosy. BUD causes necrotic skin lesions and is a significant problem for health care in the affected countries. As for other mycobacterial infections, T cell mediated immune responses are important for protection and recovery during treatment, but detailed studies investigating these immune responses in BUD patients are scarce. In this study, we aimed to characterise M...
February 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28236807/pediatric-tuberculosis-human-immunodeficiency-virus-co-infection-in-the-united-kingdom-highlights-the-need-for-better-therapy-monitoring-tools-a-case-report
#14
Dimitrios Evangelopoulos, Elizabeth Whittaker, Isobella Honeyborne, Timothy D McHugh, Nigel Klein, Delane Shingadia
BACKGROUND: Tuberculosis is an infection that requires at least 6 months of chemotherapy in order to clear the bacteria from the patient's lungs. Usually, therapeutic monitoring is dependent on smear microscopy where a decline in acid-fast bacilli is observed. However, this might not be indicative of the actual decline of bacterial load and thus other tools such as culture and molecular assays are required for patient management. CASE PRESENTATION: Here, we report the case of a 12-year-old Black African boy co-infected with tuberculosis and human immunodeficiency virus who remained smear culture positive and liquid culture negative for a prolonged period of time following chemotherapy...
February 26, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28225338/potential-biomarkers-associated-with-discrimination-between-latent-and-active-pulmonary-tuberculosis
#15
R Kamakia, S Kiazyk, J Waruk, A Meyers, J Ochanda, T B Ball, J Oyugi
SETTING: A third of the world's population has latent tuberculous infection (LTBI). Current TB diagnostics used in developing countries are ineffective and are unable to distinguish LTBI from active TB. Identifying biomarkers that could aid in the early detection of TB and in distinguishing TB states could be a major breakthrough in global TB control. OBJECTIVE: To identify potential immune biomarkers to distinguish active TB from LTBI. DESIGN: A cross-sectional study was conducted among 19 active TB patients, 8 TB-negative individuals (controls) and 16 LTBI non-human immunodeficiency virus infected individuals in Nairobi, Kenya...
March 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28223349/identification-of-antibody-targets-for-tuberculosis-serology-using-high-density-nucleic-acid-programmable-protein-arrays
#16
Lusheng Song, Garrick Wallstrom, Xiaobo Yu, Marika Hopper, Jennifer Van Duine, Jason Steel, Jin Park, Peter Wiktor, Peter Khan, Al Brunner, Douglas Wilson, Elizabeth R Jenny-Avital, Ji Qiu, Joshua LaBaer, D Mitchell Magee, Jacqueline M Achkar
Better and more diverse biomarkers for the development of simple point-of-care tests for active tuberculosis (TB), a clinically heterogeneous disease, are urgently needed. We generated a proteomic Mycobacterium tuberculosis (Mtb) High-Density Nucleic Acid Programmable Protein Array (HD-NAPPA) that used a novel multiplexed strategy for expedited high-throughput screening for antibody responses to the Mtb proteome. We screened sera from HIV uninfected and co-infected TB patients and controls (n = 120) from the US and South Africa (SA) using the multiplex HD-NAPPA for discovery, followed by deconvolution and validation through single protein HD-NAPPA with biologically independent samples (n=124)...
February 21, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28208160/quantitative-and-qualitative-profiles-of-circulating-monocytes-may-help-identifying-tuberculosis-infection-and-disease-stages
#17
Marco Pio La Manna, Valentina Orlando, Francesco Dieli, Paola Di Carlo, Antonio Cascio, Gilda Cuzzi, Fabrizio Palmieri, Delia Goletti, Nadia Caccamo
Tuberculosis (TB) is one of the most important cause of morbidity and death among infectious diseases, and continuous efforts are needed to improve diagnostic tools and therapy. Previous published studies showed that the absolute cells number of monocytes or lymphocytes in peripheral blood or yet the ratio of monocytes to lymphocytes displayed the ability to predict the risk of active TB. In the present study we evaluated the ratio of monocytes to lymphocytes variation and we also analyzed the ex-vivo expression of CD64 on monocytes as tools to identify biomarkers for discriminating TB stages...
2017: PloS One
https://www.readbyqxmd.com/read/28199374/a-novel-mycobacterial-in-vitro-infection-assay-identifies-differences-of-induced-macrophage-apoptosis-between-cd4-and-cd8-t-cells
#18
Vanesa Nkwouano, Sven Witkowski, Nidja Rehberg, Rainer Kalscheuer, Norman Nausch, Ertan Mayatepek, Marc Jacobsen
Macrophages are natural host cells for pathogenic mycobacteria, like Mycobacterium tuberculosis (M.tb). Immune surveillance by T cells and interaction with M.tb infected macrophages is crucial for protection against M.tb reactivation and development of active tuberculosis. Several factors play a role in the control of M.tb infection but reliable biomarkers remain elusive. One major obstacle is the absence of functional in vitro assays which allow concomitant determination of i) mycobacterial eradication; ii) cytotoxic effects on host macrophages; and iii) effector T-cell functions...
2017: PloS One
https://www.readbyqxmd.com/read/28184973/-cxcl-13-as-a%C3%A2-biomarker-in-the-diagnostics-of-neuroborreliosis
#19
C Waiß, W Kindler, B Ströbele, C Aspöck, S Oberndorfer
BACKGROUND: The chemokine CXCL-13 is a potential intrathecal biomarker for neuroborreliosis (NB). According to the literature the sensitivity of CXCL-13 in the diagnostics of NB varies between 88% and 100% and the specificity between 63% and 99.7%. The objective of this study was to analyze the sensitivity and specificity of CXCL-13 in the diagnosis of NB in an endemic area of Borrelia burgdorferi. MATERIAL AND METHODS: In a retrospective analysis of data from August 2014 to August 2016, 63 patients with clinically suspected NB were identified...
February 9, 2017: Der Nervenarzt
https://www.readbyqxmd.com/read/28183335/efficacy-of-vitamin-d3-supplementation-in-reducing-incidence-of-pulmonary-tuberculosis-and-mortality-among-hiv-infected-tanzanian-adults-initiating-antiretroviral-therapy-study-protocol-for-a-randomized-controlled-trial
#20
Christopher R Sudfeld, Ferdinand Mugusi, Said Aboud, Tumaini J Nagu, Molin Wang, Wafaie W Fawzi
BACKGROUND: HIV-infected adults initiating antiretroviral therapy (ART) in sub-Saharan Africa continue to experience high rates of morbidity and mortality during the initial months of treatment. Observational studies in high-income and resource-limited settings indicate that HIV-infected adults with low vitamin D levels may be at increased risk of mortality, HIV disease progression, and incidence of pulmonary tuberculosis (TB). As a result, vitamin D3 supplementation may improve survival and treatment outcomes for HIV-infected adults initiating ART...
February 10, 2017: Trials
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