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001-es BibID:	BIBFORM101739
035-os BibID:	(cikkazonosító)7144 (WOS)000790397500022 (Scopus)85129301911
Első szerző:	Fidler Gábor (molekuláris biológus, genetikus)
Cím:	Circulating microRNA sequencing revealed miRNome patterns in hematology and oncology patients aiding the prognosis of invasive aspergillosis / Fidler Gábor, Szilágyi-Rácz Anna Anita, Dávid Péter, Tolnai Emese, Rejtő László, Szász Róbert, Póliska Szilárd, Biró Sándor, Paholcsek Melinda
Dátum:	2022
ISSN:	2045-2322
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	Scientific Reports. - 12 : 1 (2022), p. 1-17. -
További szerzők:	Szilágyi-Rácz Anna Anita (1995-) (molekuláris biológus) Dávid Péter (1984-) (biológia tanár) Szilágyi-Tolnai Emese (1988-) (Molekuláris biológus) Rejtő László (1963-) (belgyógyász, haematológus) Szász Róbert (1972-) (belgyógyász, haematológus) Póliska Szilárd (1978-) (biológus) Biró Sándor (1949-) (molekuláris genetikus) Paholcsek Melinda (1984-) (molekuláris biológus, genetikus)
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM059207
Első szerző:	Paholcsek Melinda (molekuláris biológus, genetikus)
Cím:	Combining standard clinical methods with PCR showed improved diagnosis of invasive pulmonary aspergillosis in patients with hematological malignancies and prolonged neutropenia / Melinda Paholcsek, Gabor Fidler, Jozsef Konya, Laszlo Rejto, Gabor Mehes, Evelin Bukta, Juergen Loeffler, Sandor Biro
Dátum:	2015
ISSN:	1471-2334
Megjegyzések:	Background: We assessed the diagnostic value of standard clinical methods and combined biomarker testing(galactomannan assay and polymerase chain reaction screening) in a prospective case?control study to detectinvasive pulmonary aspergillosis in patients with hematological malignancies and prolonged neutropenia.Methods: In this observational study 162 biomarker analyses were performed on samples from 27 febrile neutropenicepisodes. Sera were successively screened for galactomannan antigen and for Aspergillus fumigatus specific nucleic acidtargets. Furthermore thoracic computed tomography scanning was performed along with bronchoscopy with lavagewhen clinically indicated. Patients were retrospectively stratified to define a case-group with "proven" or "probable"invasive pulmonary aspergillosis (25.93 %) and a control-group of patients with no evidence for of invasive pulmonaryaspergillosis (74.07 %). In 44.44 % of episodes fever ceased in response to antibiotic treatment (group II). Empiricalantifungal therapy was administered for episodes with persistent or relapsing fever (group I). 48.15 % of patientsdied during the study period. Postmortem histology was pursued in 53.85 % of fatalities.Results: Concordant negative galactomannan and computed tomography supported by a polymerase chainreaction assay were shown to have the highest discriminatory power to exclude invasive pulmonary aspergillosis.Bronchoalveolar lavage was performed in 6 cases of invasive pulmonary aspergillosis and in 15 controls. Althoughbronchoalveolar lavage proved negative in 93 % of controls it did not detect IPA in 86 % of the cases. Remarkablypost mortem histology convincingly supported the presence of Aspergillus hyphae in lung tissue from a single casewhich had consecutive positive polymerase chain reaction assay results but was misdiagnosed by both computedtomography and consistently negative galactomannan assay results. For the galactomannan enzyme-immunoassay thediagnostic odds ratio was 15.33 and for the polymerase chain reaction assay it was 28.67. According to Cohen's kappaour in-house polymerase chain reaction method showed a fair agreement with the galactomannan immunoassay.Combined analysis of the results from the Aspergillus galactomannan enzyme immunoassay together with thosegenerated by our polymerase chain reaction assay led to no misdiagnoses in the control group.Conclusion: The data from this pilot-study demonstrate that the consideration of standard clinical methods combinedwith biomarker testing improves the capacity to make early and more accurate diagnostic decisions.
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban Invasive pulmonary aspergillosis Biomarkers Combination testing Acute leukemia Neutropenic fever
Megjelenés:	BMC Infectious Diseases. - 15 : 1 (2015), p. 251. -
További szerzők:	Fidler Gábor (1987-) (molekuláris biológus, genetikus) Kónya József (1964-) (szakorvos, klinikai mikrobiológus) Rejtő László (1963-) (belgyógyász, haematológus) Méhes Gábor (1966-) (patológus) Bukta Evelin Loeffler, Juergen Biró Sándor (1949-) (molekuláris genetikus)
Pályázati támogatás:	SROP-4.2.2.B-15/1/KONV-2015-0001 Egyéb TÁMOP-4.2.4.A/ 2-11/1-2012-0001 TÁMOP
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM088275
035-os BibID:	(Cikkazonosító)16532 (WOS)000577291800043 (Scopus)85091981783
Első szerző:	Szilágyi-Tolnai Emese (Molekuláris biológus)
Cím:	Free circulating mircoRNAs support the diagnosis of invasive aspergillosis in patients with hematologic malignancies and neutropenia / Emese Tolnai, Gábor Fidler, Róbert Szász, László Rejtő, Kingsley Okechukwu Nwozor, Sándor Biró, Melinda Paholcsek
Dátum:	2020
ISSN:	2045-2322
Megjegyzések:	Fungal infections represent a worrisome complication in hematologic cancer patients and in the absence of disease specific symptoms, it is important to establish new biological indicators, which can be used during mould-active prophylaxis. Recently, miRNAs have appeared as candidate diagnostic and prognostic markers of several diseases. A pilot clinical study was performed to evaluate the diagnostic utility of 14 microRNAs which can be related to invasive fungal infections. Based on our data miR-142-3p, miR-142-5p, miR-26b-5p and miR-21-5p showed significant overexpression (p < 0.005) due to invasive aspergillosis in hemato-oncology patients with profound neutropenia. A tetramiR assay was designed to monitor peripheral blood specimens. Optimal cut-off was estimated by using the median value (fold change 1.1) of the log10 transformed gene expressions. The biomarker panel was evaluated on two independent sample cohorts implementing different antimicrobial prophylactic strategies. The receiver operating characteristic analysis with area under the curve proved to be 0.97. Three miRNAs (miR-142-5p, miR-142-3p, miR-16-5p) showed significant expression alterations in episodes with sepsis. In summary, the tetramiR assay proved to be a promising diagnostic adjunct with sufficient accuracy and sensitivity to trace invasive aspergillosis in hemato-oncology patients.
Tárgyszavak:	Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	Scientific Reports. - 10 : 1 (2020), p. 1-12. -
További szerzők:	Fidler Gábor (1987-) (molekuláris biológus, genetikus) Szász Róbert (1972-) (belgyógyász, haematológus) Rejtő László (1963-) (belgyógyász, haematológus) Nwozor, Kingsley Okechukwu Biró Sándor (1949-) (molekuláris genetikus) Paholcsek Melinda (1984-) (molekuláris biológus, genetikus)
Pályázati támogatás:	GINOP-2.3.2-15-2016-00042 GINOP
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