Date: 26 November 2013
Secondary metabolites, 3D structure: Trivial name – viriditoxin
Copyright: n/a
Notes:
Species: A. brevipes, A. fumigatus, A. viridinutansSystematic name: (8,8′-Bi-1H-naphtho(2,3-c)pyran)-3,3′-diacetic acid, 3,3′,4,4′-tetrahydro- 9,9′,10,10′-tetrahydroxy-7,7′-dimethoxy-1,1′-dioxo-, dimethyl ester (8,8′-BI-1H-NAPHTHO(2,3-c)PYRAN)-3,3′-DIACETIC ACID, 3,3′,4,4′-TETRAHYDRO-9,9′,1 3,3′,4,4′-Tetrahydro-9,9′,10,Molecular formulae: C34H30O14Molecular weight: 662.594Chemical abstracts number: 35483-50-2Selected references: CURRENT STATUS OF RESEARCH IN MYCOTOXIN-INDUCED TERATOGENESIS HOOD RD; SZCZECH GM EXCERPTA MED INT CONGR SER (426):96,1977TOXINS STACK ME SHERMA, J. AND B. FRIED (ED.). CHROMATOGRAPHIC SCIENCE SERIES, VOL. 71. HANDBOOK OF THIN-LAYER CHROMATOGRAPHY, SECOND EDITION. XV+1104P. MARCEL DEKKER, INC.: NEW YORK, NEW YORK, USA; BASEL, SWITZERLAND. ISBN 0-8247-9454-0.; 71 (0). 1996. 1033-1045.DAVIS ND. Sterigmatocystin and other mycotoxins produced by Aspergillus spp.. J FOOD PROT; 44 (9). 1981. 711-714, 722. Lillehoj EB, Milburn MS. Appl Microbiol. 1973 Aug;26(2):202-5. Viriditoxin production by Aspergillus viridi-nutans and related species.Toxicity: Intraperitoneal LD50 2.8 mg/kg body-weight in male mice.mouse LD50 intraperitoneal 2800ug/kg (2.8mg/kg) CRC Handbook of Antibiotic Compounds, Vols.1- , Berdy, J., Boca Raton, FL, CRC Press, 1980Vol. 5, Pg. 408, 1981.
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Images and abstract taken from Mert D et.al., Hematol Rep. 2017 Jun 1;9(2):6997. doi: 10.4081/hr.2017.6997. Invasive Aspergillosis with Disseminated Skin Involvement in a Patient with Acute Myeloid Leukemia: A Rare Case.
Invasive pulmonary aspergillosis is most commonly seen in immunocompromised patients. Besides, skin lesions may also develop due to invasive aspergillosis in those patients. A 49-year-old male patient was diagnosed with acute myeloid leukemia.
The patient developed bullous and zosteriform lesions on the skin after the 21st day of hospitalization. The skin biopsy showed hyphae. Disseminated skin aspergillosis was diagnosed to the patient.
Voricanazole treatment was initiated. The patient was discharged once the lesions started to disappear.
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A pile of woodchip stored for use in a garden usually as a weed suppressing mulch. The heat building up in the pile is illustrated by the plumes of steam eminating from the top of the pile.
Aspergillus fumigatus is particularly well adapted to grow in the heat (up to 60C) found in such piles of rotting organic material and this characteristic, an adaption for its life in its natural environment also enables it to survive and grow in warm mammalian bodies at 37C. Most fungi cannot grow or survive at those temperatures
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MK is 59 years old and presented with right sided pleuritic chest pain and coughing over 1 week. A chest Xray and then CT scan revealed complete collapse of her right lower lobe and middle lobes. Mucous retention is seen just proximal to the abrupt cutoff. There was mild bronchiectasis.
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