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https://www.readbyqxmd.com/read/28806423/new-synthetic-lipid-antigens-for-rapid-serological-diagnosis-of-tuberculosis
#1
Alison Jones, Mark Pitts, Juma'a R Al Dulayymi, James Gibbons, Andrew Ramsay, Delia Goletti, Christopher D Gwenin, Mark S Baird
BACKGROUND: During pulmonary tuberculosis (PTB) antibodies are generated to trehalose esters of mycolic acids which are cell wall lipids of Mycobacterium tuberculosis (Mtb). Attempts have been made to use these complex natural mixtures in serological tests for PTB diagnosis. AIM: The aim of this work was to determine whether a serological test based on a panel of defined individual trehalose esters of characteristic synthetic mycolic acids has improved diagnostic accuracy in distinguishing patients with culture positive PTB from individuals who were Mtb culture negative...
2017: PloS One
https://www.readbyqxmd.com/read/28804606/a-multiple-antigen-detection-assay-for-tuberculosis-diagnosis-based-on-broadly-reactive-polyclonal-antibodies
#2
Zhenhua Dai, Zhiqiang Liu, Bingshui Xiu, Xiqin Yang, Ping Zhao, Xuhui Zhang, Cuimi Duan, Haiping Que, Heqiu Zhang, Xiaoyan Feng
OBJECTIVES: Detection of circulating Mycobacterium tuberculosis (M. tuberculosis) antigens is promising in Tuberculosis (TB) diagnosis. However, not a single antigen marker has been found to be widely expressed in all TB patients. This study is aimed to prepare broadly reactive polyclonal antibodies targeting multiple antigen markers (multi-target antibodies) and evaluate their efficacies in TB diagnosis. MATERIALS AND METHODS: A fusion gene consisting of 38kD, ESAT6, and CFP10 was constructed and overexpressed...
April 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28803339/dual-energy-computed-tomography-has-limited-diagnostic-sensitivity-for-short-term-gout
#3
Ertao Jia, Junqing Zhu, Wenhui Huang, Xiaoguang Chen, Juan Li
The aim of this study was to discuss the diagnostic value of dual-energy computed tomography (DECT) in patients with gout during different disease phases. Two hundred twenty-one patients (136 with gout and 85 with other arthritic diseases) were recruited to the study. Arthrosis pain was evaluated in all patients by DECT scans. We calculated the sensitivity and specificity of DECT for the diagnosis of gout, including the first onset period, less than 24 months period, and more than 24 months period. We then investigated the related risk factors of urate crystals volume in the foot...
August 12, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28800858/diagnostic-value-of-synovial-white-blood-cell-count-and-serum-c-reactive-protein-for-acute-periprosthetic-joint-infection-after-knee-arthroplasty
#4
Sang-Gyun Kim, Jae-Gyoon Kim, Ki-Mo Jang, Seung-Bum Han, Hong-Chul Lim, Ji-Hoon Bae
BACKGROUND: The diagnosis of periprosthetic joint infection (PJI) remains difficult, particularly in acute postoperative stage. The purpose of this study was to investigate the optimal cutoff value of synovial white blood cell (WBC) count, percentage of polymorphonuclear cells, erythrocyte sedimentation rate, and C-reactive protein (CRP) for diagnosing early postoperative infection after knee joint arthroplasty. METHODS: We retrospectively reviewed primary total knee arthroplasties and unicompartmental knee arthroplasties, with a knee aspiration within 3 weeks of surgery, from January 2006 to November 2016...
July 18, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28800576/heterotopic-pregnancy-including-intrauterine-normal-gestation-and-tubal-complete-hydatidiform-mole-a-case-report-and-review-of-the-literature
#5
Dan Lu, Jian Jenny Tang, Konstantin Zakashansky, Ross S Berkowitz, Tamara Kalir, Yuxin Liu
We report a rare case of heterotopic pregnancy with intrauterine normal gestation alongside tubal complete hydatidiform mole (CHM) that resulted in a viable pregnancy after removal of molar tissue. Because of their rarity and inherent complexity, such cases represent a significant challenge in diagnosis and management. A 34-year-old female in her 10th week of gestation presented with nausea, vomiting, and intermittent abdominal pain that progressively worsened. Imaging studies revealed a normal intrauterine fetus and an 11-cm heterogenous mass in the left adnexal region...
September 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/28796467/anti-glomerular-basement-membrane-antibody-diagnostics-in-a-large-cohort-tertiary-center-should-we-trust-serological-findings
#6
Abdulla Watad, Nicola Luigi Bragazzi, Kassem Sharif, Ora Shovman, Boris Gilburd, Howard Amital, Yehuda Shoenfeld
BACKGROUND: Anti-glomerular basement membrane (GBM) antibody disease, or Goodpasture's disease, is the clinical manifestation of the production of anti-GBM antibodies, which causes rapidly progressive glomerulonephritis with or without pulmonary hemorrhage. Anti-GBM antibody detection is mandatory for the diagnosis of Goodpasture's disease either from the serum or kidney biopsy. Renal biopsy is necessary for disease confirmation; however, in cases in which renal biopsy is not possible or is delayed, serum detection of anti-GBM antibody is the only way for diagnosis...
July 2017: Israel Medical Association Journal: IMAJ
https://www.readbyqxmd.com/read/28794631/surface-enhanced-raman-spectroscopy-of-serum-accurately-detects-prostate-cancer-in-patients-with-prostate-specific-antigen-levels-of-4-10-ng-ml
#7
Na Chen, Ming Rong, Xiaoguang Shao, Heng Zhang, Shupeng Liu, Baijun Dong, Wei Xue, Tingyun Wang, Taihao Li, Jiahua Pan
The surface-enhanced Raman spectroscopy (SERS) of blood serum was investigated to differentiate between prostate cancer (PCa) and benign prostatic hyperplasia (BPH) in males with a prostate-specific antigen level of 4-10 ng/mL, so as to reduce unnecessary biopsies. A total of 240 SERS spectra from blood serum were acquired from 40 PCa subjects and 40 BPH subjects who had all received prostate biopsies and were given a pathological diagnosis. Multivariate statistical techniques, including principal component analysis (PCA) and linear discriminant analysis (LDA) diagnostic algorithms, were used to analyze the spectra data of serum from patients in control (CTR), PCa and BPH groups; results offered a sensitivity of 97...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28794628/a-synthetic-urinary-probe-coated-nanoparticles-sensitive-to-fibroblast-activation-protein-%C3%AE-for-solid-tumor-diagnosis
#8
Xinwei Feng, Qifan Wang, Yuehua Liao, Xie Zhou, Yidan Wang, Wanli Liu, Ge Zhang
We developed fibroblast activation protein α (FAPα)-sensitive magnetic iron oxide nanoparticles (MNPs) by conjugating a substrate-reporter tandem peptide as a synthetic biomarker to the surface of MNPs (marker-MNPs). In vitro, the marker-MNPs showed stability when treated with serum or urine and exhibited high susceptibility and specificity for FAPα enzyme and 3T3/FAPα cell line. Furthermore, the marker-MNPs were administered to esophageal squamous cell carcinoma xenograft tumor mice; they reached the tumor tissues in the mice, where they were cleaved effectively by the local overexpressed FAPα to release the reporter peptide and filter it into the urine...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28794177/discovery-and-validation-of-a-six-marker-serum-protein-signature-for-the-diagnosis-of-active-pulmonary-tuberculosis
#9
Mary A De Groote, David G Sterling, Thomas Hraha, Theresa Russell, Louis S Green, Kirsten Wall, Stephan Kraemer, Rachel Ostroff, Nebojsa Janjic, Urs A Ochsner
New non-sputum biomarker tests for active tuberculosis (TB) diagnostics are of highest priority for global TB control. We performed in-depth proteomic analysis using the 4000-plex SOMAscan assay on 1470 serum samples from seven TB-endemic countries. All samples were from patients with symptoms and signs suggestive of active pulmonary TB that were systematically confirmed or ruled-out for TB by culture and clinical follow-up. HIV-coinfection was present in 34%and 22% were sputum smear-negative. Serum protein biomarkers were identified by stability selection using L1-regularized logistic regression and by Kolmogorov-Smirnov (KS) statistics...
August 9, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28793883/cxcl9-a-promising-biomarker-in-the-diagnosis-of-chronic-q-fever
#10
Anne F M Jansen, Teske Schoffelen, Julien Textoris, Jean-Louis Mege, Marrigje Nabuurs-Franssen, Ruud P H Raijmakers, Mihai G Netea, Leo A B Joosten, Chantal P Bleeker-Rovers, Marcel van Deuren
BACKGROUND: In the aftermath of the largest Q fever outbreak in the world, diagnosing the potentially lethal complication chronic Q fever remains challenging. PCR, Coxiella burnetii IgG phase I antibodies, CRP and (18)F-FDG-PET/CT scan are used for diagnosis and monitoring in clinical practice. We aimed to identify and test biomarkers in order to improve discriminative power of the diagnostic tests and monitoring of chronic Q fever. METHODS: We performed a transcriptome analysis on C...
August 9, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28792374/evaluation-of-an-automated-quantitative-latex-immunoturbidimetric-non-treponemal-assay-for-diagnosis-and-follow-up-of-syphilis-a-prospective-cohort-study
#11
Kara Osbak, Said Abdellati, Achilleas Tsoumanis, Marjan Van Esbroeck, Luc Kestens, Tania Crucitti, Chris Kenyon
PURPOSE: We evaluated the Sekure rapid plasma reagin (RPR-S) (Sekisui Diagnostics) automated quantitative latex immunoturbidimetric assay performed on the SK500 clinical chemistry system for clinical appropriateness. METHODOLOGY: Syphilis-infected individuals and controls were recruited into a prospective cohort study conducted at a sexually transmitted infection clinic in Antwerp, Belgium. Sera collected at diagnosis (baseline) and at 3, 6, 9 and 12 months post-treatment were tested with RPR-S and Macro-Vue RPR card (RPR-C) (Becton Dickinson) assays; RPR-C was considered the reference test...
August 10, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28790311/plasmonic-silver-nanoshells-for-drug-and-metabolite-detection
#12
Lin Huang, Jingjing Wan, Xiang Wei, Yu Liu, Jingyi Huang, Xuming Sun, Ru Zhang, Deepanjali D Gurav, Vadanasundari Vedarethinam, Yan Li, Ruoping Chen, Kun Qian
In-vitro metabolite and drug detection rely on designed materials-based analytical platforms, which are universally used in biomedical research and clinical practice. However, metabolic analysis in bio-samples needs tedious sample preparation, due to the sample complexity and low molecular abundance. A further challenge is to construct diagnostic tools. Herein, we developed a platform using silver nanoshells. We synthesized SiO2@Ag with tunable shell structures by multi-cycled silver mirror reactions. Optimized nanoshells achieved direct laser desorption/ionization mass spectrometry in 0...
August 9, 2017: Nature Communications
https://www.readbyqxmd.com/read/28783896/liver-fluke-associated-biliary-tract-cancer
#13
REVIEW
Piyapan Prueksapanich, Panida Piyachaturawat, Prapimphan Aumpansub, Wiriyaporn Ridtitid, Roongruedee Chaiteerakij, Rungsun Rerknimitr
Cholangiocarcinoma (CCA) is an aggressive cancer arising from epithelial cells of the bile duct. Most patients with CCA have an unresectable tumor at the time of diagnosis. In Western countries, the risk of CCA increases in patients with primary sclerosing cholangitis, whereas liver fluke infection appears to be the major risk factor for CCA in Asian countries. A diagnosis of liver fluke infection often relies on stool samples, including microscopic examination, polymerase chain reaction-based assays, and fluke antigen detection...
August 9, 2017: Gut and Liver
https://www.readbyqxmd.com/read/28783737/salivary-gland-ultrasonography-as-a-predictor-of-clinical-activity-in-sj%C3%A3-gren-s-syndrome
#14
Tania Fidelix, Adriano Czapkowski, Sergio Azjen, Adagmar Andriolo, Virginia F M Trevisani
PURPOSE: Primary Sjögren's syndrome is a multisystem autoimmune disease characterized by hypofunction of salivary and lacrimal glands and possible multi-organ system manifestations. Over the past 15 years, three sets of diagnostic criteria have been proposed, but none has included salivary gland ultrasonography. However, recent studies support its role in the diagnosis and prognostic evaluation of patients with Sjögren's syndrome. This study aimed to determine the value of salivary gland ultrasonography in the diagnosis and prognosis of Sjögren's syndrome by relating ultrasonography severity scores to clinical and laboratory data...
2017: PloS One
https://www.readbyqxmd.com/read/28782994/serum-mir-210-and-mir-155-expression-levels-as-novel-biomarkers-for-rheumatoid-arthritis-diagnosis
#15
R S Abdul-Maksoud, A M Sediq, Aaa Kattaia, Wsh Elsayed, N Ezzeldin, S M Abdel Galil, R A Ibrahem
BACKGROUND: MicroRNAs play a crucial role in the regulation of immune response. We hypothesised roles for serum miR-210 and miR-155 in the diagnosis of rheumatoid arthritis (RA) and relationships with the clinical and laboratory variables including erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), rheumatoid factor (RF), anti-cyclic citrullinated peptide (CCP) antibodies, tumour necrosis factor-alpha (TNF-α) and interleukin-1β (IL-1β). METHODS: MiR-210 and miR-155 levels were identified by real-time polymerase chain reaction (PCR)...
August 7, 2017: British Journal of Biomedical Science
https://www.readbyqxmd.com/read/28782657/the-search-for-novel-diagnostic-and-prognostic-biomarkers-in-cholangiocarcinoma
#16
REVIEW
Rocio I R Macias, Jesus M Banales, Bruno Sangro, Jordi Muntané, Matias A Avila, Elisa Lozano, Maria J Perugorria, Francisco J Padillo, Luis Bujanda, Jose J G Marin
The poor prognosis of cholangiocarcinoma (CCA) is in part due to late diagnosis, which is currently achieved by a combination of clinical, radiological and histological approaches. Available biomarkers determined in serum and biopsy samples to assist in CCA diagnosis are not sufficiently sensitive and specific. Therefore, the identification of new biomarkers, preferably those obtained by minimally invasive methods, such as liquid biopsy, is important. The development of innovative technologies has permitted to identify a significant number of genetic, epigenetic, proteomic and metabolomic CCA features with potential clinical usefulness in early diagnosis, prognosis or prediction of treatment response...
August 4, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28782578/performance-of-rapid-diagnostic-tests-for-detection-of-hepatitis-b-and-c-markers-in-hiv-infected-patients
#17
Jakeline Ribeiro Barbosa, Jeová Keny Baima Colares, Geane Lopes Flores, Vanessa Faria Cortes, Juliana Custódio Miguel, Moyra Machado Portilho, Vanessa Alves Marques, Denise Vigo Potsch, Carlos Eduardo Brandão-Mello, Marcia Amendola-Pires, José Henrique Pilotto, Danielle Malta Lima, Elisabeth Lampe, Livia Melo Villar
There is little information describing the influence of HIV infection upon the performance of rapid diagnostic tests (RDTs) for hepatitis B and C virus diagnosis. This study aims to evaluate the performance of RDTs for HBsAg and anti-HCV detection among HIV-infected individuals. A total of 362 HIV infected individuals were recruited from clinics between January 2013 to November 2014 in the southeast and northeast of Brazil. HBsAg and anti-HCV were detected using commercial EIAs and four RDTs: HBV (Vikia HBsAg(®) and Wama Imuno-Rapido HBV(®)) and HCV (Bioeasy Teste Rápido HCV(®) and Wama Imuno-Rapido HCV(®))...
August 4, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28782250/meropenem-induced-immune-thrombocytopenia-and-the-diagnostic-process-of-laboratory-testing
#18
Rong Huang, Guang-Qing Cai, Jun-Hua Zhang, Feng-Xia Liu, Jin-Qi Ma, Hong Liu, Xin-Min Nie, Rong Gui
BACKGROUND: Drug-induced immune thrombocytopenia (DITP) is a serious, life-threatening clinical syndrome, the diagnosis of which is consistently difficult. In this report, we present a case of DITP caused by meropenem that was confirmed by laboratory tests. CASE REPORT: A 59-year-old male patient developed severe thrombocytopenia 8 days after the administration of meropenem and cefoperazone-sulbactam. After other causes were ruled out, DITP was suspected. Drug-induced platelet (PLT) antibodies were detected by enzyme immunoassay, flow cytometry, and monoclonal antibody immobilization of PLT antigens (MAIPA)...
August 7, 2017: Transfusion
https://www.readbyqxmd.com/read/28782119/systematic-review-with-meta-analysis-diagnostic-performance-of-the-combination-of-pepsinogen-gastrin-17-and-anti-helicobacter-pylori-antibodies-serum-assays-for-the-diagnosis-of-atrophic-gastritis
#19
REVIEW
R M Zagari, S Rabitti, D C Greenwood, L H Eusebi, A Vestito, F Bazzoli
BACKGROUND: The combination of pepsinogen, gastrin-17 and anti-H. pylori antibodies serological assays (panel test) is a non-invasive tool for the diagnosis of atrophic gastritis. However, the diagnostic reliability of this test is still uncertain. AIM: To assess the diagnostic performance of the serum panel test for the diagnosis of atrophic gastritis. METHODS: Medline via PubMed, Embase, Scopus, Cochrane Library databases and abstracts of international conferences proceedings were searched from January 1995 to December 2016 using the primary keywords "pepsinogens," "gastrin," "atrophic gastritis," "gastric precancerous lesions...
August 7, 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28780750/ischemic-colitis-of-the-colon-in-streptozotocin-induced-diabetic-rats
#20
Yahya Ozel, H Kubra Elcioglu, Z Ayca Cevikelli, Ilyas Kudas, Sarfraz Ahmad, Hafize Uzun, Cumhur Topal, Serife Aktas, Levent Kabasakal
This study focuses on two inflammatory diseases, viz., "diabetes mellitus (DM)" that causes serious complications such as retinopathy, nephropathy, and neuropathy, and "ischemic colitis" which is evoked by DM. Ischemic colitis originates from the reduction in mesenteric blood flow to the colon with existence of the occlusive or non-occlusive reasons. Our study objective was to provide early diagnostic approach for ischemic colitis in streptozotocin (STZ)-induced diabetic rats. Sprague-Dawley rats were divided into four groups: (i) control use of 0...
August 5, 2017: Molecular and Cellular Biochemistry
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