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Váradi, Orsolya Anna; Rakk, Dávid; Spekker, Olga; Terhes, Gabriella; Urbán, Edit; Berthon, William; Pap, Ildikó; Szikossy, Ildikó; Maixner, Frank; Zink, Albert; Vágvölgyi, Csaba; Donoghue, Helen D.; Minnikin, David E.; Szekeres, András; Pálfi, György
Tuberculosis (Edinburgh, Scotland), January 2021, 2021-01-00, 20210101, Letnik: 126Journal Article
Tuberculosis (TB) was a large burden of infections that peaked during the 19th century in Europe. Mummies from the 18th century CE, discovered in the crypt of a church at Vác, Hungary, had high TB prevalence, as revealed by amplification of key fragments of TB DNA and genome-wide TB analysis. Complementary methods are needed to confirm these diagnoses and one approach uses the identification of specific lipid biomarkers, such as TB mycocerosic acids (MCs). Previously, MC derivatives were profiled by specialised gas chromatography-mass spectrometry (GC-MS), so an alternative more direct approach has been developed. Underivatized MCs are extracted and analysed by high-performance liquid chromatography linked to a mass spectrometer, in heated electrospray ionisation mode (HPLC-HESI-MS). The method was validated using representatives of the Mycobacterium tuberculosis complex and other mycobacteria and tested on six Vác mummy cases, previously considered positive for TB infection. Analysing both rib and soft tissue samples, four out of six cases gave profiles of main C32 and major C29 and C39 mycocerosates correlating well with those of M. tuberculosis. Multidisciplinary methods are needed in the diagnosis of ancient tuberculosis; this new protocol accesses important confirmatory evidence, as demonstrated by the confirmation of TB in the Vác mummies. •Detection of tuberculosis mycocerosic acid biomarkers by HPLC-HESI-MS.•HPLC-MS confirmation of tuberculosis in 18th century mummies from Vác, Hungary.
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