TY  - JOUR
A1  - Meier, Johannes P.
A1  - Möbus, Selina
A1  - Heigl, Florian
A1  - Asbach-Nitzsche, Alexandra
A1  - Niller, Hans Helmut
A1  - Plentz, Annelie
A1  - Avsar, Korkut
A1  - Heiß-Neumann, Marion
A1  - Schaaf, Bernhard
A1  - Cassens, Uwe
A1  - Seese, Bernd
A1  - Teschner, Daniel
A1  - Handzhiev, Sabin
A1  - Graf, Uwe
A1  - Lübbert, Christoph
A1  - Steinmaurer, Monika
A1  - Kontogianni, Konstantina
A1  - Berg, Christoph
A1  - Maieron, Andreas
A1  - Blaas, Stefan H.
A1  - Wagner, Ralf
A1  - Deml, Ludwig
A1  - Barabas, Sascha
T1  - Performance of T-Track\(^®\) TB, a novel dual marker RT-qPCR-based whole-blood test for improved detection of active tuberculosis
JF  - Diagnostics
N2  - Tuberculosis (TB) is one of the leading causes of death by an infectious disease. It remains a major health burden worldwide, in part due to misdiagnosis. Therefore, improved diagnostic tests allowing the faster and more reliable diagnosis of patients with active TB are urgently needed. This prospective study examined the performance of the new molecular whole-blood test T-Track\(^®\) TB, which relies on the combined evaluation of IFNG and CXCL10 mRNA levels, and compared it to that of the QuantiFERON\(^®\)-TB Gold Plus (QFT-Plus) enzyme-linked immunosorbent assay (ELISA). Diagnostic accuracy and agreement analyses were conducted on the whole blood of 181 active TB patients and 163 non-TB controls. T-Track\(^®\) TB presented sensitivity of 94.9% and specificity of 93.8% for the detection of active TB vs. non-TB controls. In comparison, the QFT-Plus ELISA showed sensitivity of 84.3%. The sensitivity of T-Track\(^®\) TB was significantly higher (p < 0.001) than that of QFT-Plus. The overall agreement of T-Track\(^®\) TB with QFT-Plus to diagnose active TB was 87.9%. Out of 21 samples with discordant results, 19 were correctly classified by T-Track\(^®\) TB while misclassified by QFT-Plus (T-Track\(^®\) TB-positive/QFT-Plus-negative), and two samples were misclassified by T-Track\(^®\) TB while correctly classified by QFT-Plus (T-Track\(^®\) TB-negative/QFT-Plus-positive). Our results demonstrate the excellent performance of the T-Track\(^®\) TB molecular assay and its suitability to accurately detect TB infection and discriminate active TB patients from non-infected controls.
KW  - tuberculosis
KW  - TB
KW  - active TB
KW  - infection detection
KW  - T-Track\(^®\) TB
KW  - QuantiFERON\(^®\)-TB Gold Plus
KW  - mRNA
KW  - RT-qPCR
KW  - CXCL10
KW  - IFNG
Y1  - 2023
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-304113
SN  - 2075-4418
VL  - 13
IS  - 4
ER  - 
TY  - JOUR
A1  - Fux, Robert
A1  - Arndt, Daniela
A1  - Langenmayer, Martin C.
A1  - Schwaiger, Julia
A1  - Ferling, Hermann
A1  - Fischer, Nicole
A1  - Indenbirken, Daniela
A1  - Grundhoff, Adam
A1  - Dölken, Lars
A1  - Adamek, Mikolaj
A1  - Steinhagen, Dieter
A1  - Sutter, Gerd
T1  - Piscine orthoreovirus 3 is not the causative pathogen of proliferative darkening syndrome (PDS) of brown trout (Salmo trutta fario)
JF  - Viruses
N2  - The proliferative darkening syndrome (PDS) is a lethal disease of brown trout (Salmo trutta fario) which occurs in several alpine Bavarian limestone rivers. Because mortality can reach 100%, PDS is a serious threat for affected fish populations. Recently, Kuehn and colleagues reported that a high throughput RNA sequencing approach identified a piscine orthoreovirus (PRV) as a causative agent of PDS. We investigated samples from PDS-affected fish obtained from two exposure experiments performed at the river Iller in 2008 and 2009. Using a RT-qPCR and a well-established next-generation RNA sequencing pipeline for pathogen detection, PRV-specific RNA was not detectable in PDS fish from 2009. In contrast, PRV RNA was readily detectable in several organs from diseased fish in 2008. However, similar virus loads were detectable in the control fish which were not exposed to Iller water and did not show any signs of the disease. Therefore, we conclude that PRV is not the causative agent of PDS of brown trout in the rhithral region of alpine Bavarian limestone rivers. The abovementioned study by Kuehn used only samples from the exposure experiment from 2008 and detected a subclinical PRV bystander infection. Work is ongoing to identify the causative agent of PDS.
KW  - proliferative darkening syndrome
KW  - black trout syndrome
KW  - piscine orthoreovirus
KW  - orthoreovirus
KW  - brown trout
KW  - Salmo trutta fario
KW  - next generation sequencing
KW  - RT-qPCR
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-196991
SN  - 1999-4915
VL  - 11
IS  - 2
ER  -