Related Experiment Video
Updated: Feb 7, 2026

Investigating the Alleviating Effects of Bacillus cereus Administration on Colitis through Gut Microbiota Modulation
Published on: July 27, 2022
Production, secretion and biological activity of Bacillus cereus enterotoxins
Sonia Senesi1, Emilia Ghelardi
1Dipartimento di Biologia,University of Pisa, via S. Zeno 37, 56127 Pisa, Italy. ssenesi@biologia.unipi.it
Abstract:
Bacillus cereus behaves as an opportunistic pathogen frequently causing gastrointestinal diseases, and it is increasingly recognized to be responsible for severe local or systemic infections. Pathogenicity of B. cereus mainly relies on the secretion of a wide array of toxins and enzymes and also on the ability to undergo swarming differentiation in response to surface-sensing. In this report, the pathogenicity exerted by B. cereus toxins is described with particular attention to the regulatory mechanisms of production and secretion of HBL, Nhe and CytK enterotoxins.
Related Concept Videos
Drug Products: Biologics, Biosimilars and Interchangeables
What is Conservation Biology?
Biological Effects of Radiation
Regulation of Hormone Secretion
Humoral...
Hormones Secreted by the Stomach
Each of these hormones secreted by different enteroendocrine cells plays a unique role in digestion. Here are a few examples:
Pancreatic Juice and Secretion
When acidic chyme from the stomach enters the duodenum, it triggers the release of secretin, a hormone that prompts pancreatic juice secretion. After a fatty meal, cholecystokinin, another hormone, stimulates gallbladder contraction and enhances enzyme-rich...

