PMID- 31532045 OWN - NLM STAT- MEDLINE DCOM- 20200514 LR - 20200514 IS - 1439-0507 (Electronic) IS - 0933-7407 (Linking) VI - 63 IP - 1 DP - 2020 Jan TI - Evaluation of (1 --> 3)-beta-D-glucan assay for diagnosing paracoccidioidomycosis. PG - 38-42 LID - 10.1111/myc.13007 [doi] AB - BACKGROUND: Paracoccidioidomycosis (PCM) is highly prevalent in Latin America, but no commercial system is available for diagnosing this endemic mycosis. OBJECTIVES: To check the performance of (1 --> 3)-beta-D-glucan assay (BDG) for diagnosing PCM in 29 patients with proven fungal disease and compared with double immunodiffusion assay for detecting anti-Paracoccidioides antibodies. PATIENTS AND METHODS: We selected 52 serum samples sequentially obtained from 29 patients with active PCM (12 chronic and 17 acute form). Samples were collected at baseline, and for 16 patients, additional serum levels were obtained after 3 and 6 months of antifungal treatment. Detection of BDG in serum was performed by using the Fungitell((R)) assay. For the double immunodiffusion assay, Paracoccidioides exoantigen was used in latex agglutination tests to detect serum anti-Paracoccidioides antibodies. RESULTS: Despite exhibiting good sensitivity in the diagnosis of patients with PCM, we failed to demonstrate any correlation between the postdiagnosis kinetic profile of BDG serum levels and clinical response to antifungal therapy. This finding may be related to the maintenance of quiescent foci of fungal infection in several organs and tissues, a phenomenon that has been previously reported by other authors and helps to understand why so many relapses are documented in patients treated for short periods of time. Finally, we did not find any correlation between BDG quantification and specific anti-P brasiliensis antibodies serum titres in patients with PCM. CONCLUSIONS: In conclusion, BDG is detected in serum samples of most patients with PCM but is probably not useful for predicting clinical response to antifungal therapy. CI - (c) 2019 Blackwell Verlag GmbH. FAU - Melo, Analy Salles de Azevedo AU - Melo ASA AUID- ORCID: 0000-0001-6900-6468 AD - Laboratorio Especial de Micologia, Departamento de Medicina, Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, Brasil. FAU - Santos, Daniel Wagner de Castro Lima AU - Santos DWCL AUID- ORCID: 0000-0003-4946-911X AD - Laboratorio Especial de Micologia, Departamento de Medicina, Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, Brasil. FAU - Lima, Soraia Lopes AU - Lima SL AD - Laboratorio Especial de Micologia, Departamento de Medicina, Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, Brasil. FAU - Rodrigues, Anderson Messias AU - Rodrigues AM AUID- ORCID: 0000-0003-0891-4563 AD - Laboratorio de Patogenos Fungicos Emergentes, Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, Brazil. FAU - de Camargo, Zoilo Pires AU - de Camargo ZP AD - Laboratorio de Micologia Medica, Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, Brazil. FAU - Finkelman, Malcolm AU - Finkelman M AD - Associates of Cape Cod, Clinical Development Department, Research Laboratory, Falmouth, MA, USA. FAU - Colombo, Arnaldo Lopes AU - Colombo AL AUID- ORCID: 0000-0003-0793-8491 AD - Laboratorio Especial de Micologia, Departamento de Medicina, Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, Brasil. LA - eng GR - 307510/2015-8/Conselho Nacional de Desenvolvimento Cientifico e Tecnologico/ PT - Journal Article DEP - 20191105 PL - Germany TA - Mycoses JT - Mycoses JID - 8805008 RN - 0 (Antibodies, Fungal) RN - 0 (Antifungal Agents) RN - 0 (Antigens, Fungal) RN - 0 (Glucans) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Antibodies, Fungal/blood MH - Antifungal Agents/therapeutic use MH - Antigens, Fungal/immunology MH - Child MH - Child, Preschool MH - Enzyme-Linked Immunosorbent Assay/methods MH - Female MH - Glucans/immunology MH - Humans MH - Infant MH - Infant, Newborn MH - Latin America MH - Male MH - Middle Aged MH - Paracoccidioides/*immunology MH - Paracoccidioidomycosis/*diagnosis/drug therapy/microbiology MH - Young Adult OTO - NOTNLM OT - (1 --> 3)-beta-D-glucan assay OT - Paracoccidioidomycosis OT - antifungal therapy OT - endemic mycosis OT - fungal biomarker EDAT- 2019/09/19 06:00 MHDA- 2020/05/15 06:00 CRDT- 2019/09/19 06:00 PHST- 2019/03/21 00:00 [received] PHST- 2019/09/12 00:00 [revised] PHST- 2019/09/13 00:00 [accepted] PHST- 2019/09/19 06:00 [pubmed] PHST- 2020/05/15 06:00 [medline] PHST- 2019/09/19 06:00 [entrez] AID - 10.1111/myc.13007 [doi] PST - ppublish SO - Mycoses. 2020 Jan;63(1):38-42. doi: 10.1111/myc.13007. Epub 2019 Nov 5.