Possible relationships among cellular energy status and the induction and initiation of aflatoxin synthesis were studied by using replacement culture techniques in conjunction with aflatoxin-supporting and-nonsupporting media. Transcription and translation processes associated with the induction of aflatoxin synthesis occurred 3 to 6 and 6 to 10 h, respectively, after mycelia were transferred to glucose-containing media. From adenylate energy charge determinations and in situ 31P nuclear magnetic resonance analyses, a relationship between overall energy status and the induction or initiation of aflatoxin synthesis could not be identified; however, electron microscopic evaluations indicated that aflatoxin synthesis occurred in association with a glucose-mediated inactivation of mitochondria. The results suggest that aflatoxin synthesis is not regulated by the overall energy status of the fungal cell but may be controlled by the energy status of specific subcellular compartments.
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http://dx.doi.org/10.1128/aem.53.6.1224-1231.1987 | DOI Listing |
Cureus
December 2024
Internal Medicine, Al Rayan College, Madina, SAU.
Background Ulcerative colitis (UC) is a common chronic disease. Perceived stress is one of the risk factors that stimulate UC activity. Long-term clinical suffering negatively alters the health-related quality of life (HRQOL).
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
January 2025
Sustainability Cluster, School of Engineering, University of Petroleum and Energy Studies, Dehradun, 248007, India.
This study provides a detailed approach to evaluating water quality in the Haridwar district, Uttarakhand, India, by integrating physicochemical and microbiological investigations. It employs multivariate analysis and applies water quality and trophic state indices to evaluate the current state of the water and identify potential sources of contamination. The results from the correlation matrix highlight the dynamic interactions between different water quality parameters.
View Article and Find Full Text PDFNutr Rev
January 2025
Sports Nutrition Center, National Institute of Sports Medicine, Beijing 100029, China.
Context: Dietary fiber (DF) exhibits variations in its chemical and physical complexity, as well as in its utilization by the gut microbiota. However, the impact of these differences on the health status of adults with overweight or obesity remains unclear.
Objective: This meta-analysis aimed to explore the varying effects of supplementing with different specificities of DF on the health of adults with overweight or obesity, providing guidance on selecting DF supplementation to improve health status.
PLoS One
January 2025
Department of Family and Community Medicine and Medical Education, College of Medicine, Taibah University, Al-Madinah Al-Munawara, Saudi Arabia.
Background: Indoor air pollution is a major public health concern, contributing to approximately 2.9 million deaths and 81.1 million disability-adjusted life years lost annually.
View Article and Find Full Text PDFCochrane Database Syst Rev
January 2025
Behaviour and Health Research Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK.
Background: Overconsumption of food and consumption of any amount of alcohol increases the risk of non-communicable diseases. Calorie (energy) labelling is advocated as a means to reduce energy intake from food and alcoholic drinks. However, there is continued uncertainty about these potential impacts, with a 2018 Cochrane review identifying only a small body of low-certainty evidence.
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