Corn from an Arkansas farm, where three horses died and others became sick, was investigated for causative principles. Necropsy of the three horses revealed what appeared to be severe hepatic necrosis. Histopathological examination indicated a pattern of hepatic lesions that was suggestive of aflatoxin contamination of the feed. Mycological examination of the corn by dilution plating revealed 95% of the colonies as Aspergillus flavus. Chemical analysis of the corn for mycotoxins was positive for aflatoxin B1, B2, and M1 at concentrations of 114, 10, and 6 micrograms/Kg, respectively. Cyclopiazonic acid, sterigmatocystin, and the Fusarium toxins, vomitoxin (deoxynivalenol), T-2 toxin, and diacetoxyscirpenol, were not detected. The presence of aflatoxin metabolites in the moldy corn and the presence of appropriate lesions were compatible with the diagnosis, equine aflatoxicosis.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/BF01065342 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Host-Induced Gene Silencing of the -Methyl Transferase Gene Enhanced Maize Aflatoxin Resistance.
Toxins (Basel)
December 2024
Department of Plant Pathology and Crop Physiology, Louisiana State University Agricultural Center, Baton Rouge, LA 70803, USA.
Maize is one of the major crops that are susceptible to infection and subsequent aflatoxin contamination, which poses a serious health threat to humans and domestic animals. Here, an RNA interference (RNAi) approach called Host-Induced Gene Silencing (HIGS) was employed to suppress the -methyl transferase gene (, also called ), a key gene involved in aflatoxin biosynthesis. An RNAi vector carrying part of the gene was introduced into the B104 maize line.
View Article and Find Full Text PDFThe Effect of Temperature over the Growth and Biofilm Formation of the Thermotolerant .
J Fungi (Basel)
January 2025
Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prol. Carpio y Plan de Ayala s/n Col. Casco de Santo Tomás, Alcaldia Miguel Hidalgo, Mexico City C.P. 11340, Mexico.
is a medically relevant fungus, particularly in tropical regions. Although its aflatoxin production and thermotolerance are well documented, its biofilm-forming ability has received less attention, despite being a key factor in the virulence of as an opportunistic pathogen, which can significantly impact therapeutic outcomes. To investigate the influence of temperature on the growth and biofilm formation of an isolate, we compared it on solid media with the reference strain ATCC 22546 and documented morphological changes during conidial germination.
View Article and Find Full Text PDFAcute necrotizing otitis media is a severe middle ear infection which causes necrosis of the tympanic cavity. A 54-year-old female was presented who suffered from diabetes mellitus and end-stage renal disease presenting with severe otalgia, initially thought to be necrotizing otitis externa. She rapidly progressed to total necrosis of the tympanic membrane.
View Article and Find Full Text PDFCorrigendum: RNA interference of in response to Aspergillus flavus partitivirus 1 infection.
Front Microbiol
January 2025
Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, Guizhou Medical University, Guiyang, China.
[This corrects the article DOI: 10.3389/fmicb.2023.
View Article and Find Full Text PDFApplying hollow octahedron PtNPs/Pd-CuO nanozyme and highly conductive AuPtNPs/Ni-Co NCs to colorimetric -electrochemical dual-mode aptasensor for AFB1 detection.
Anal Chim Acta
February 2025
College of Food Science and Technology, Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Henan University of Technology, Zhengzhou, 450001, China.
Background: Aflatoxin B1 (AFB1) is a secondary metabolite produced by Aspergillus flavus and Aspergillus parasiticus. This toxin is highly carcinogenic and toxic, posing a serious threat to human and animal health. AFB1 primarily enters the human body through contaminated food, particularly peanuts, corn, nuts, and wheat.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!